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_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1996 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1997 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1999 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2000 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2002 mono_mb_emit_icall (mb, checkpoint_func);
2003 /* Throw the exception returned by the checkpoint function, if any */
2004 mono_mb_emit_byte (mb, CEE_DUP);
2005 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2006 mono_mb_emit_byte (mb, CEE_THROW);
2007 mono_mb_patch_branch (mb, pos_noex);
2008 mono_mb_emit_byte (mb, CEE_POP);
2010 mono_mb_patch_branch (mb, pos_noabort);
2014 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2016 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2019 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2023 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2025 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2029 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2031 emit_thread_interrupt_checkpoint (mb);
2035 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2037 emit_thread_force_interrupt_checkpoint (mb);
2040 #endif /* DISABLE_JIT */
2042 static MonoAsyncResult *
2043 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2045 MonoMethodMessage *msg;
2046 MonoDelegate *async_callback;
2047 MonoMulticastDelegate *mcast_delegate;
2051 MonoMethod *method = NULL, *method2 = NULL;
2053 g_assert (delegate);
2054 mcast_delegate = (MonoMulticastDelegate *) delegate;
2055 if (mcast_delegate->prev != NULL)
2056 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2058 #ifndef DISABLE_REMOTING
2059 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2061 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2062 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2064 /* If the target is a proxy, make a direct call. Is proxy's work
2065 // to make the call asynchronous.
2067 MonoAsyncResult *ares;
2069 MonoArray *out_args;
2070 method = delegate->method;
2072 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2073 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2074 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2075 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2076 MONO_OBJECT_SETREF (msg, async_result, ares);
2077 msg->call_type = CallType_BeginInvoke;
2080 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2082 mono_raise_exception ((MonoException *) exc);
2088 klass = delegate->object.vtable->klass;
2090 method = mono_get_delegate_invoke (klass);
2091 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2094 g_assert (method != NULL);
2096 im = mono_get_delegate_invoke (method->klass);
2097 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2099 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2105 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2107 int i, params_var, tmp_var;
2109 /* allocate local (pointer) *params[] */
2110 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2111 /* allocate local (pointer) tmp */
2112 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2114 /* alloate space on stack to store an array of pointers to the arguments */
2115 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2116 mono_mb_emit_byte (mb, CEE_PREFIX1);
2117 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2118 mono_mb_emit_stloc (mb, params_var);
2121 mono_mb_emit_ldloc (mb, params_var);
2122 mono_mb_emit_stloc (mb, tmp_var);
2124 if (save_this && sig->hasthis) {
2125 mono_mb_emit_ldloc (mb, tmp_var);
2126 mono_mb_emit_ldarg_addr (mb, 0);
2127 mono_mb_emit_byte (mb, CEE_STIND_I);
2128 /* tmp = tmp + sizeof (gpointer) */
2129 if (sig->param_count)
2130 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2134 for (i = 0; i < sig->param_count; i++) {
2135 mono_mb_emit_ldloc (mb, tmp_var);
2136 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2137 mono_mb_emit_byte (mb, CEE_STIND_I);
2138 /* tmp = tmp + sizeof (gpointer) */
2139 if (i < (sig->param_count - 1))
2140 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2146 #endif /* DISABLE_JIT */
2149 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2153 GString *res = g_string_new ("");
2156 g_string_append (res, prefix);
2157 g_string_append_c (res, '_');
2160 mono_type_get_desc (res, sig->ret, FALSE);
2163 g_string_append (res, "__this__");
2165 for (i = 0; i < sig->param_count; ++i) {
2166 g_string_append_c (res, '_');
2167 mono_type_get_desc (res, sig->params [i], FALSE);
2170 g_string_free (res, FALSE);
2175 * mono_marshal_get_string_encoding:
2177 * Return the string encoding which should be used for a given parameter.
2179 static MonoMarshalNative
2180 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2182 /* First try the parameter marshal info */
2184 if (spec->native == MONO_NATIVE_LPARRAY) {
2185 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2186 return spec->data.array_data.elem_type;
2189 return spec->native;
2193 return MONO_NATIVE_LPSTR;
2195 /* Then try the method level marshal info */
2196 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2197 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2198 return MONO_NATIVE_LPSTR;
2199 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2200 return MONO_NATIVE_LPWSTR;
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2203 return MONO_NATIVE_LPWSTR;
2205 return MONO_NATIVE_LPSTR;
2208 return MONO_NATIVE_LPSTR;
2212 static MonoMarshalConv
2213 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2215 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2218 case MONO_NATIVE_LPWSTR:
2219 return MONO_MARSHAL_CONV_STR_LPWSTR;
2220 case MONO_NATIVE_LPSTR:
2221 case MONO_NATIVE_VBBYREFSTR:
2222 return MONO_MARSHAL_CONV_STR_LPSTR;
2223 case MONO_NATIVE_LPTSTR:
2224 return MONO_MARSHAL_CONV_STR_LPTSTR;
2225 case MONO_NATIVE_BSTR:
2226 return MONO_MARSHAL_CONV_STR_BSTR;
2232 static MonoMarshalConv
2233 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2235 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2238 case MONO_NATIVE_LPWSTR:
2239 return MONO_MARSHAL_CONV_SB_LPWSTR;
2241 case MONO_NATIVE_LPSTR:
2242 return MONO_MARSHAL_CONV_SB_LPSTR;
2244 case MONO_NATIVE_LPTSTR:
2245 return MONO_MARSHAL_CONV_SB_LPTSTR;
2252 static MonoMarshalConv
2253 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2255 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2260 case MONO_NATIVE_LPWSTR:
2262 return MONO_MARSHAL_CONV_LPWSTR_STR;
2263 case MONO_NATIVE_LPSTR:
2264 case MONO_NATIVE_VBBYREFSTR:
2265 return MONO_MARSHAL_CONV_LPSTR_STR;
2266 case MONO_NATIVE_LPTSTR:
2267 return MONO_MARSHAL_CONV_LPTSTR_STR;
2268 case MONO_NATIVE_BSTR:
2269 return MONO_MARSHAL_CONV_BSTR_STR;
2275 static MonoMarshalConv
2276 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2278 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2283 case MONO_NATIVE_LPWSTR:
2285 * mono_string_builder_to_utf16 does not allocate a
2286 * new buffer, so no need to free it.
2289 return MONO_MARSHAL_CONV_LPWSTR_SB;
2290 case MONO_NATIVE_LPSTR:
2291 return MONO_MARSHAL_CONV_LPSTR_SB;
2293 case MONO_NATIVE_LPTSTR:
2294 return MONO_MARSHAL_CONV_LPTSTR_SB;
2302 * Return whenever a field of a native structure or an array member needs to
2306 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2308 MonoMarshalNative encoding;
2311 case MONO_TYPE_VALUETYPE:
2312 /* FIXME: Optimize this */
2314 case MONO_TYPE_OBJECT:
2315 case MONO_TYPE_CLASS:
2316 if (t->data.klass == mono_defaults.stringbuilder_class) {
2318 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2322 case MONO_TYPE_STRING:
2323 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2324 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2331 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2334 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2337 mono_marshal_lock ();
2340 g_hash_table_new (hash_func, equal_func);
2341 mono_memory_barrier ();
2344 mono_marshal_unlock ();
2350 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2352 return get_cache (var, hash_func, equal_func);
2356 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2360 mono_marshal_lock ();
2361 res = g_hash_table_lookup (cache, key);
2362 mono_marshal_unlock ();
2369 * Create a MonoMethod from MB, set INFO as wrapper info.
2372 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2373 int max_stack, WrapperInfo *info)
2377 res = mono_mb_create_method (mb, sig, max_stack);
2379 mono_marshal_set_wrapper_info (res, info);
2383 /* Create the method from the builder and place it in the cache */
2385 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2386 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2387 int max_stack, WrapperInfo *info, gboolean *out_found)
2394 mono_marshal_lock ();
2395 res = g_hash_table_lookup (cache, key);
2396 mono_marshal_unlock ();
2399 newm = mono_mb_create_method (mb, sig, max_stack);
2400 mono_marshal_lock ();
2401 res = g_hash_table_lookup (cache, key);
2404 g_hash_table_insert (cache, key, res);
2406 mono_marshal_set_wrapper_info (res, info);
2408 mono_marshal_set_wrapper_info (res, key);
2409 mono_marshal_unlock ();
2413 mono_marshal_unlock ();
2414 mono_free_method (newm);
2422 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2423 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2426 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2430 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2433 int wrapper_type = wrapper->wrapper_type;
2436 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2439 switch (wrapper_type) {
2440 case MONO_WRAPPER_REMOTING_INVOKE:
2441 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2442 case MONO_WRAPPER_XDOMAIN_INVOKE:
2443 case MONO_WRAPPER_SYNCHRONIZED:
2444 case MONO_WRAPPER_UNBOX:
2445 res = mono_marshal_get_wrapper_info (wrapper);
2448 if (wrapper->is_inflated) {
2452 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2453 * contains an uninflated method.
2455 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2456 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2460 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2461 info = mono_marshal_get_wrapper_info (wrapper);
2462 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2463 return info->d.managed_to_native.method;
2466 case MONO_WRAPPER_RUNTIME_INVOKE:
2467 info = mono_marshal_get_wrapper_info (wrapper);
2468 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2469 return info->d.runtime_invoke.method;
2478 * mono_marshal_get_wrapper_info:
2480 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2481 * returned depends on the wrapper type. It is usually a method, a class, or a
2482 * WrapperInfo structure.
2485 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2487 g_assert (wrapper->wrapper_type);
2489 return mono_method_get_wrapper_data (wrapper, 1);
2493 * mono_marshal_set_wrapper_info:
2495 * Store an arbitrary pointer inside the wrapper which is retrievable by
2496 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2497 * wrapper (method->wrapper_type).
2500 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2504 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2507 datav = ((MonoMethodWrapper *)method)->method_data;
2512 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2516 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2517 info->subtype = subtype;
2522 * get_wrapper_target_class:
2524 * Return the class where a wrapper method should be placed.
2527 get_wrapper_target_class (MonoImage *image)
2534 * - can't put all wrappers into an mscorlib class, because they reference
2535 * metadata (signature) so they should be put into the same image as the
2536 * method they wrap, so they are unloaded together.
2537 * - putting them into a class with a type initalizer could cause the
2538 * initializer to be executed which can be a problem if the wrappers are
2540 * - putting them into an inflated class can cause problems if the the
2541 * class is deleted because it references an image which is unloaded.
2542 * To avoid these problems, we put the wrappers into the <Module> class of
2545 if (image_is_dynamic (image)) {
2546 klass = ((MonoDynamicImage*)image)->wrappers_type;
2548 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2549 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2557 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2558 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2562 * check_generic_wrapper_cache:
2564 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2565 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2566 * generic method definition.
2569 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2572 MonoMethod *inst, *def;
2573 MonoGenericContext *ctx;
2575 g_assert (orig_method->is_inflated);
2576 ctx = mono_method_get_context (orig_method);
2579 * Look for the instance
2581 res = mono_marshal_find_in_cache (cache, key);
2586 * Look for the definition
2588 def = mono_marshal_find_in_cache (cache, def_key);
2591 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2592 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2594 mono_memory_barrier ();
2595 mono_marshal_lock ();
2596 res = g_hash_table_lookup (cache, key);
2598 g_hash_table_insert (cache, key, inst);
2601 mono_marshal_unlock ();
2608 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2611 MonoMethod *inst, *res;
2614 * We use the same cache for the generic definition and the instances.
2616 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2617 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2618 mono_memory_barrier ();
2619 mono_marshal_lock ();
2620 res = g_hash_table_lookup (cache, key);
2622 g_hash_table_insert (cache, key, inst);
2625 mono_marshal_unlock ();
2630 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2634 MonoMethod *inst, *def;
2637 * Look for the instance
2639 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2644 * Look for the definition
2646 def = mono_marshal_find_in_cache (cache, def_method->klass);
2648 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2649 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2652 mono_memory_barrier ();
2653 mono_marshal_lock ();
2654 res = g_hash_table_lookup (cache, orig_method->klass);
2656 g_hash_table_insert (cache, orig_method->klass, inst);
2659 mono_marshal_unlock ();
2666 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2669 MonoMethod *inst, *res;
2672 * We use the same cache for the generic definition and the instances.
2674 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2675 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2677 mono_memory_barrier ();
2678 mono_marshal_lock ();
2679 res = g_hash_table_lookup (cache, orig_method->klass);
2681 g_hash_table_insert (cache, orig_method->klass, inst);
2684 mono_marshal_unlock ();
2689 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2691 MonoMethodSignature *sig;
2692 MonoMethodBuilder *mb;
2697 MonoGenericContext *ctx = NULL;
2698 MonoMethod *orig_method = NULL;
2700 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2701 !strcmp (method->name, "BeginInvoke"));
2704 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2706 if (method->is_inflated) {
2707 orig_method = method;
2708 ctx = &((MonoMethodInflated*)method)->context;
2709 method = ((MonoMethodInflated*)method)->declaring;
2712 sig = mono_signature_no_pinvoke (method);
2718 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2719 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2723 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2724 (GHashFunc)mono_signature_hash,
2725 (GCompareFunc)mono_metadata_signature_equal);
2726 if ((res = mono_marshal_find_in_cache (cache, sig)))
2730 g_assert (sig->hasthis);
2732 name = mono_signature_to_name (sig, "begin_invoke");
2734 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2736 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2740 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2742 mono_mb_emit_ldarg (mb, 0);
2743 mono_mb_emit_ldloc (mb, params_var);
2744 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2745 mono_mb_emit_byte (mb, CEE_RET);
2750 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2751 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2753 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2761 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2763 MonoDomain *domain = mono_domain_get ();
2764 MonoAsyncResult *ares;
2765 MonoMethod *method = NULL;
2766 MonoMethodSignature *sig;
2767 MonoMethodMessage *msg;
2768 MonoObject *res, *exc;
2769 MonoArray *out_args;
2772 g_assert (delegate);
2774 if (!delegate->method_info) {
2775 g_assert (delegate->method);
2776 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2779 if (!delegate->method_info || !delegate->method_info->method)
2780 g_assert_not_reached ();
2782 klass = delegate->object.vtable->klass;
2784 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2785 g_assert (method != NULL);
2787 sig = mono_signature_no_pinvoke (method);
2789 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2791 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2793 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."));
2797 if (ares->async_delegate != (MonoObject*)delegate) {
2798 mono_raise_exception (mono_get_exception_invalid_operation (
2799 "The IAsyncResult object provided does not match this delegate."));
2803 #ifndef DISABLE_REMOTING
2804 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2805 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2806 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2807 mono_message_init (domain, msg, delegate->method_info, NULL);
2808 msg->call_type = CallType_EndInvoke;
2809 MONO_OBJECT_SETREF (msg, async_result, ares);
2810 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2814 res = mono_thread_pool_finish (ares, &out_args, &exc);
2818 if (((MonoException*)exc)->stack_trace) {
2819 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2821 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2823 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2826 mono_raise_exception ((MonoException*)exc);
2829 mono_method_return_message_restore (method, params, out_args);
2836 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2838 MonoType *t = mono_type_get_underlying_type (return_type);
2840 if (return_type->byref)
2841 return_type = &mono_defaults.int_class->byval_arg;
2844 case MONO_TYPE_VOID:
2845 g_assert_not_reached ();
2848 case MONO_TYPE_STRING:
2849 case MONO_TYPE_CLASS:
2850 case MONO_TYPE_OBJECT:
2851 case MONO_TYPE_ARRAY:
2852 case MONO_TYPE_SZARRAY:
2856 case MONO_TYPE_BOOLEAN:
2859 case MONO_TYPE_CHAR:
2869 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2870 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2872 case MONO_TYPE_GENERICINST:
2873 if (!mono_type_generic_inst_is_valuetype (t))
2876 case MONO_TYPE_VALUETYPE: {
2877 MonoClass *klass = mono_class_from_mono_type (return_type);
2878 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2879 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2883 case MONO_TYPE_MVAR: {
2884 MonoClass *klass = mono_class_from_mono_type (return_type);
2885 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2889 g_warning ("type 0x%x not handled", return_type->type);
2890 g_assert_not_reached ();
2893 mono_mb_emit_byte (mb, CEE_RET);
2896 #endif /* DISABLE_JIT */
2899 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2901 MonoMethodSignature *sig;
2902 MonoMethodBuilder *mb;
2907 MonoGenericContext *ctx = NULL;
2908 MonoMethod *orig_method = NULL;
2910 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2911 !strcmp (method->name, "EndInvoke"));
2914 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2916 if (method->is_inflated) {
2917 orig_method = method;
2918 ctx = &((MonoMethodInflated*)method)->context;
2919 method = ((MonoMethodInflated*)method)->declaring;
2922 sig = mono_signature_no_pinvoke (method);
2928 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2929 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2933 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2934 (GHashFunc)mono_signature_hash,
2935 (GCompareFunc)mono_metadata_signature_equal);
2936 if ((res = mono_marshal_find_in_cache (cache, sig)))
2940 g_assert (sig->hasthis);
2942 name = mono_signature_to_name (sig, "end_invoke");
2944 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2946 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2950 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2952 mono_mb_emit_ldarg (mb, 0);
2953 mono_mb_emit_ldloc (mb, params_var);
2954 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2956 if (sig->ret->type == MONO_TYPE_VOID) {
2957 mono_mb_emit_byte (mb, CEE_POP);
2958 mono_mb_emit_byte (mb, CEE_RET);
2960 mono_mb_emit_restore_result (mb, sig->ret);
2965 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2966 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2968 res = mono_mb_create_and_cache (cache, sig,
2969 mb, sig, sig->param_count + 16);
2978 MonoMethodSignature *sig;
2980 } SignaturePointerPair;
2983 signature_pointer_pair_hash (gconstpointer data)
2985 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2987 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2991 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2993 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2994 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2998 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3000 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3002 return pair->pointer == user_data;
3006 free_signature_pointer_pair (SignaturePointerPair *pair)
3012 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3014 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3016 MonoMethodBuilder *mb;
3019 gpointer cache_key = NULL;
3020 SignaturePointerPair key;
3021 SignaturePointerPair *new_key;
3022 int local_prev, local_target;
3025 MonoClass *target_class = NULL;
3026 gboolean closed_over_null = FALSE;
3027 MonoGenericContext *ctx = NULL;
3028 MonoGenericContainer *container = NULL;
3029 MonoMethod *orig_method = NULL;
3031 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3034 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3035 !strcmp (method->name, "Invoke"));
3037 invoke_sig = sig = mono_signature_no_pinvoke (method);
3040 * If the delegate target is null, and the target method is not static, a virtual
3041 * call is made to that method with the first delegate argument as this. This is
3042 * a non-documented .NET feature.
3045 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3046 if (target_method->is_inflated) {
3047 MonoType *target_type;
3049 g_assert (method->signature->hasthis);
3050 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3051 mono_method_get_context (method));
3052 target_class = mono_class_from_mono_type (target_type);
3054 target_class = target_method->klass;
3057 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3060 if (static_method_with_first_arg_bound) {
3061 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3062 g_assert (!callvirt);
3063 invoke_sig = mono_method_signature (target_method);
3067 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3069 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3070 orig_method = method;
3071 ctx = &((MonoMethodInflated*)method)->context;
3072 method = ((MonoMethodInflated*)method)->declaring;
3074 container = mono_method_get_generic_container (method);
3076 container = method->klass->generic_container;
3077 g_assert (container);
3079 invoke_sig = sig = mono_signature_no_pinvoke (method);
3086 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3087 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3090 cache_key = method->klass;
3091 } else if (static_method_with_first_arg_bound) {
3092 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3093 (GHashFunc)mono_signature_hash,
3094 (GCompareFunc)mono_metadata_signature_equal);
3096 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3098 res = mono_marshal_find_in_cache (cache, invoke_sig);
3101 cache_key = invoke_sig;
3102 } else if (callvirt) {
3103 GHashTable **cache_ptr;
3105 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3107 /* We need to cache the signature+method pair */
3108 mono_marshal_lock ();
3110 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3112 key.sig = invoke_sig;
3113 key.pointer = target_method;
3114 res = g_hash_table_lookup (cache, &key);
3115 mono_marshal_unlock ();
3119 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3120 (GHashFunc)mono_signature_hash,
3121 (GCompareFunc)mono_metadata_signature_equal);
3122 res = mono_marshal_find_in_cache (cache, sig);
3128 static_sig = signature_dup (method->klass->image, sig);
3129 static_sig->hasthis = 0;
3130 if (!static_method_with_first_arg_bound)
3131 invoke_sig = static_sig;
3133 if (static_method_with_first_arg_bound)
3134 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3135 else if (closed_over_null)
3136 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3138 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3140 name = mono_signature_to_name (invoke_sig, "invoke");
3142 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3144 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3148 /* allocate local 0 (object) */
3149 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3150 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3152 g_assert (sig->hasthis);
3156 * prev.Invoke( args .. );
3157 * return this.<target>( args .. );
3160 /* this wrapper can be used in unmanaged-managed transitions */
3161 emit_thread_interrupt_checkpoint (mb);
3163 /* get this->prev */
3164 mono_mb_emit_ldarg (mb, 0);
3165 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3166 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3167 mono_mb_emit_stloc (mb, local_prev);
3168 mono_mb_emit_ldloc (mb, local_prev);
3170 /* if prev != null */
3171 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3175 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3176 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3178 mono_mb_emit_ldloc (mb, local_prev);
3179 for (i = 0; i < sig->param_count; i++)
3180 mono_mb_emit_ldarg (mb, i + 1);
3183 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3184 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3186 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3188 if (sig->ret->type != MONO_TYPE_VOID)
3189 mono_mb_emit_byte (mb, CEE_POP);
3191 /* continued or prev == null */
3192 mono_mb_patch_branch (mb, pos0);
3194 /* get this->target */
3195 mono_mb_emit_ldarg (mb, 0);
3196 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3197 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3198 mono_mb_emit_stloc (mb, local_target);
3200 /*static methods with bound first arg can have null target and still be bound*/
3201 if (!static_method_with_first_arg_bound) {
3202 /* if target != null */
3203 mono_mb_emit_ldloc (mb, local_target);
3204 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3206 /* then call this->method_ptr nonstatic */
3209 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3211 mono_mb_emit_ldloc (mb, local_target);
3212 for (i = 0; i < sig->param_count; ++i)
3213 mono_mb_emit_ldarg (mb, i + 1);
3214 mono_mb_emit_ldarg (mb, 0);
3215 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3216 mono_mb_emit_byte (mb, CEE_LDIND_I );
3217 mono_mb_emit_op (mb, CEE_CALLI, sig);
3219 mono_mb_emit_byte (mb, CEE_RET);
3222 /* else [target == null] call this->method_ptr static */
3223 mono_mb_patch_branch (mb, pos0);
3227 if (!closed_over_null) {
3228 mono_mb_emit_ldarg (mb, 1);
3229 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3230 for (i = 1; i < sig->param_count; ++i)
3231 mono_mb_emit_ldarg (mb, i + 1);
3232 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3234 mono_mb_emit_byte (mb, CEE_LDNULL);
3235 for (i = 0; i < sig->param_count; ++i)
3236 mono_mb_emit_ldarg (mb, i + 1);
3237 mono_mb_emit_op (mb, CEE_CALL, target_method);
3240 if (static_method_with_first_arg_bound) {
3241 mono_mb_emit_ldloc (mb, local_target);
3242 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3243 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3245 for (i = 0; i < sig->param_count; ++i)
3246 mono_mb_emit_ldarg (mb, i + 1);
3247 mono_mb_emit_ldarg (mb, 0);
3248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3249 mono_mb_emit_byte (mb, CEE_LDIND_I );
3250 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3253 mono_mb_emit_byte (mb, CEE_RET);
3255 mb->skip_visibility = 1;
3256 #endif /* DISABLE_JIT */
3261 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3262 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3263 } else if (callvirt) {
3264 new_key = g_new0 (SignaturePointerPair, 1);
3267 info = mono_wrapper_info_create (mb, subtype);
3269 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3273 info = mono_wrapper_info_create (mb, subtype);
3275 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3283 * the returned method invokes all methods in a multicast delegate.
3286 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3288 gboolean callvirt = FALSE;
3289 gboolean static_method_with_first_arg_bound = FALSE;
3290 MonoMethod *target_method = NULL;
3291 MonoMethodSignature *sig;
3293 sig = mono_signature_no_pinvoke (method);
3295 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3297 target_method = del->method;
3300 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3301 static_method_with_first_arg_bound = TRUE;
3302 target_method = del->method;
3305 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3309 * signature_dup_add_this:
3311 * Make a copy of @sig, adding an explicit this argument.
3313 static MonoMethodSignature*
3314 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3316 MonoMethodSignature *res;
3319 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3320 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3321 res->param_count = sig->param_count + 1;
3322 res->hasthis = FALSE;
3323 for (i = sig->param_count - 1; i >= 0; i --)
3324 res->params [i + 1] = sig->params [i];
3325 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3331 MonoMethodSignature *ctor_sig;
3332 MonoMethodSignature *sig;
3335 /* protected by the marshal lock, contains CtorSigPair pointers */
3336 static GSList *strsig_list = NULL;
3338 static MonoMethodSignature *
3339 lookup_string_ctor_signature (MonoMethodSignature *sig)
3341 MonoMethodSignature *callsig;
3345 mono_marshal_lock ();
3347 for (item = strsig_list; item; item = item->next) {
3349 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3350 * because it is lock-free.
3352 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3357 mono_marshal_unlock ();
3361 static MonoMethodSignature *
3362 add_string_ctor_signature (MonoMethod *method)
3364 MonoMethodSignature *callsig;
3367 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3368 callsig->ret = &mono_defaults.string_class->byval_arg;
3369 cs = g_new (CtorSigPair, 1);
3371 cs->ctor_sig = mono_method_signature (method);
3373 mono_marshal_lock ();
3374 strsig_list = g_slist_prepend (strsig_list, cs);
3375 mono_marshal_unlock ();
3380 * mono_marshal_get_string_ctor_signature:
3382 * Return the modified signature used by string ctors (they return the newly created
3385 MonoMethodSignature*
3386 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3388 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3390 sig = add_string_ctor_signature (method);
3396 get_runtime_invoke_type (MonoType *t, gboolean ret)
3399 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3401 /* Can't share this with 'I' as that needs another indirection */
3402 return &mono_defaults.int_class->this_arg;
3405 if (MONO_TYPE_IS_REFERENCE (t))
3406 return &mono_defaults.object_class->byval_arg;
3409 /* The result needs to be boxed */
3414 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3417 return &mono_defaults.sbyte_class->byval_arg;
3419 return &mono_defaults.int16_class->byval_arg;
3421 return &mono_defaults.int32_class->byval_arg;
3424 return &mono_defaults.int64_class->byval_arg;
3425 case MONO_TYPE_BOOLEAN:
3426 return &mono_defaults.byte_class->byval_arg;
3427 case MONO_TYPE_CHAR:
3428 return &mono_defaults.uint16_class->byval_arg;
3431 return &mono_defaults.int_class->byval_arg;
3432 case MONO_TYPE_VALUETYPE:
3433 if (t->data.klass->enumtype) {
3434 t = mono_class_enum_basetype (t->data.klass);
3444 * mono_marshal_get_runtime_invoke_sig:
3446 * Return a common signature used for sharing runtime invoke wrappers.
3448 static MonoMethodSignature*
3449 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3451 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3454 res->generic_param_count = 0;
3455 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3456 for (i = 0; i < res->param_count; ++i)
3457 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3463 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3465 /* Can't share wrappers which return a vtype since it needs to be boxed */
3466 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))
3469 return mono_metadata_signature_equal (sig1, sig2);
3477 * Emit the call to the wrapper method from a runtime invoke wrapper.
3480 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3481 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3483 gboolean virtual, gboolean need_direct_wrapper)
3485 static MonoString *string_dummy = NULL;
3487 int *tmp_nullable_locals;
3488 gboolean void_ret = FALSE;
3490 /* to make it work with our special string constructors */
3491 if (!string_dummy) {
3492 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3493 string_dummy = mono_string_new_wrapper ("dummy");
3497 g_assert (sig->hasthis);
3498 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3502 if (method->string_ctor) {
3503 if (mono_gc_is_moving ()) {
3504 mono_mb_emit_ptr (mb, &string_dummy);
3505 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3507 mono_mb_emit_ptr (mb, string_dummy);
3510 mono_mb_emit_ldarg (mb, 0);
3514 tmp_nullable_locals = g_new0 (int, sig->param_count);
3516 for (i = 0; i < sig->param_count; i++) {
3517 MonoType *t = sig->params [i];
3520 mono_mb_emit_ldarg (mb, 1);
3522 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3523 mono_mb_emit_byte (mb, CEE_ADD);
3527 mono_mb_emit_byte (mb, CEE_LDIND_I);
3528 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3529 * So to make this work we unbox it to a local variablee and push a reference to that.
3531 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3532 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3534 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3535 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3536 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3541 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3542 type = sig->params [i]->type;
3546 case MONO_TYPE_BOOLEAN:
3550 case MONO_TYPE_CHAR:
3559 mono_mb_emit_byte (mb, CEE_LDIND_I);
3560 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3562 case MONO_TYPE_STRING:
3563 case MONO_TYPE_CLASS:
3564 case MONO_TYPE_ARRAY:
3566 case MONO_TYPE_SZARRAY:
3567 case MONO_TYPE_OBJECT:
3568 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3570 case MONO_TYPE_GENERICINST:
3571 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3572 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3577 case MONO_TYPE_VALUETYPE:
3578 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3579 type = mono_class_enum_basetype (t->data.klass)->type;
3582 mono_mb_emit_byte (mb, CEE_LDIND_I);
3583 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3584 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3585 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3586 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3588 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3592 g_assert_not_reached ();
3597 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3598 } else if (need_direct_wrapper) {
3599 mono_mb_emit_op (mb, CEE_CALL, method);
3601 mono_mb_emit_ldarg (mb, 3);
3602 mono_mb_emit_calli (mb, callsig);
3605 if (sig->ret->byref) {
3607 g_assert_not_reached ();
3610 switch (sig->ret->type) {
3611 case MONO_TYPE_VOID:
3612 if (!method->string_ctor)
3615 case MONO_TYPE_BOOLEAN:
3616 case MONO_TYPE_CHAR:
3629 case MONO_TYPE_VALUETYPE:
3630 case MONO_TYPE_TYPEDBYREF:
3631 case MONO_TYPE_GENERICINST:
3632 /* box value types */
3633 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3635 case MONO_TYPE_STRING:
3636 case MONO_TYPE_CLASS:
3637 case MONO_TYPE_ARRAY:
3638 case MONO_TYPE_SZARRAY:
3639 case MONO_TYPE_OBJECT:
3643 /* The result is an IntPtr */
3644 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3647 g_assert_not_reached ();
3651 mono_mb_emit_stloc (mb, loc_res);
3653 /* Convert back nullable-byref arguments */
3654 for (i = 0; i < sig->param_count; i++) {
3655 MonoType *t = sig->params [i];
3658 * Box the result and put it back into the array, the caller will have
3659 * to obtain it from there.
3661 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3662 mono_mb_emit_ldarg (mb, 1);
3663 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3664 mono_mb_emit_byte (mb, CEE_ADD);
3666 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3667 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3669 mono_mb_emit_byte (mb, CEE_STIND_REF);
3673 g_free (tmp_nullable_locals);
3677 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3678 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3679 gboolean virtual, gboolean need_direct_wrapper)
3682 MonoExceptionClause *clause;
3683 int loc_res, loc_exc;
3685 /* The wrapper looks like this:
3691 * } catch (Exception e) {
3699 /* allocate local 0 (object) tmp */
3700 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3701 /* allocate local 1 (object) exc */
3702 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3704 /* *exc is assumed to be initialized to NULL by the caller */
3706 mono_mb_emit_byte (mb, CEE_LDARG_2);
3707 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3712 labels [1] = mono_mb_get_label (mb);
3713 emit_thread_force_interrupt_checkpoint (mb);
3714 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3716 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3718 /* Add a try clause around the call */
3719 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3720 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3721 clause->data.catch_class = mono_defaults.exception_class;
3722 clause->try_offset = labels [1];
3723 clause->try_len = mono_mb_get_label (mb) - labels [1];
3725 clause->handler_offset = mono_mb_get_label (mb);
3728 mono_mb_emit_stloc (mb, loc_exc);
3729 mono_mb_emit_byte (mb, CEE_LDARG_2);
3730 mono_mb_emit_ldloc (mb, loc_exc);
3731 mono_mb_emit_byte (mb, CEE_STIND_REF);
3733 mono_mb_emit_branch (mb, CEE_LEAVE);
3735 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3737 mono_mb_set_clauses (mb, 1, clause);
3739 mono_mb_patch_branch (mb, labels [2]);
3740 mono_mb_emit_ldloc (mb, loc_res);
3741 mono_mb_emit_byte (mb, CEE_RET);
3746 mono_mb_patch_branch (mb, labels [0]);
3747 emit_thread_force_interrupt_checkpoint (mb);
3748 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3750 mono_mb_emit_ldloc (mb, 0);
3751 mono_mb_emit_byte (mb, CEE_RET);
3756 * generates IL code for the runtime invoke function
3757 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3759 * we also catch exceptions if exc != null
3760 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3761 * it means that the compiled code for METHOD does not have to be looked up
3762 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3763 * its METHOD argument.
3766 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3768 MonoMethodSignature *sig, *csig, *callsig;
3769 MonoMethodBuilder *mb;
3770 GHashTable *cache = NULL;
3771 MonoClass *target_klass;
3772 MonoMethod *res = NULL;
3773 static MonoMethodSignature *cctor_signature = NULL;
3774 static MonoMethodSignature *finalize_signature = NULL;
3776 const char *param_names [16];
3777 gboolean need_direct_wrapper = FALSE;
3782 if (!cctor_signature) {
3783 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3784 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3786 if (!finalize_signature) {
3787 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3788 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3789 finalize_signature->hasthis = 1;
3793 need_direct_wrapper = TRUE;
3796 * Use a separate cache indexed by methods to speed things up and to avoid the
3797 * boundless mempool growth caused by the signature_dup stuff below.
3800 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3802 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3803 res = mono_marshal_find_in_cache (cache, method);
3807 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3808 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3810 * Array Get/Set/Address methods. The JIT implements them using inline code
3811 * so we need to create an invoke wrapper which calls the method directly.
3813 need_direct_wrapper = TRUE;
3816 if (method->string_ctor) {
3817 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3819 callsig = add_string_ctor_signature (method);
3820 /* Can't share this as we push a string as this */
3821 need_direct_wrapper = TRUE;
3823 if (method_is_dynamic (method))
3824 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3826 callsig = mono_method_signature (method);
3829 target_klass = get_wrapper_target_class (method->klass->image);
3831 /* Try to share wrappers for non-corlib methods with simple signatures */
3832 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3833 callsig = cctor_signature;
3834 target_klass = mono_defaults.object_class;
3835 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3836 callsig = finalize_signature;
3837 target_klass = mono_defaults.object_class;
3840 if (need_direct_wrapper) {
3841 /* Already searched at the start */
3843 MonoMethodSignature *tmp_sig;
3845 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3847 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3848 /* These have a different csig */
3849 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3850 (GHashFunc)mono_signature_hash,
3851 (GCompareFunc)runtime_invoke_signature_equal);
3853 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3854 (GHashFunc)mono_signature_hash,
3855 (GCompareFunc)runtime_invoke_signature_equal);
3857 /* from mono_marshal_find_in_cache */
3858 mono_marshal_lock ();
3859 res = g_hash_table_lookup (cache, callsig);
3860 mono_marshal_unlock ();
3867 /* Make a copy of the signature from the image mempool */
3869 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3873 sig = mono_method_signature (method);
3875 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3877 csig->ret = &mono_defaults.object_class->byval_arg;
3878 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3879 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3881 csig->params [0] = &mono_defaults.object_class->byval_arg;
3882 csig->params [1] = &mono_defaults.int_class->byval_arg;
3883 csig->params [2] = &mono_defaults.int_class->byval_arg;
3884 csig->params [3] = &mono_defaults.int_class->byval_arg;
3887 /* This is called from runtime code so it has to be cdecl */
3888 csig->call_convention = MONO_CALL_C;
3891 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3892 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3896 param_names [0] = "this";
3897 param_names [1] = "params";
3898 param_names [2] = "exc";
3899 param_names [3] = "method";
3900 mono_mb_set_param_names (mb, param_names);
3902 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3905 if (need_direct_wrapper) {
3907 mb->skip_visibility = 1;
3909 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3910 info->d.runtime_invoke.method = method;
3911 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3913 /* taken from mono_mb_create_and_cache */
3914 mono_marshal_lock ();
3915 res = g_hash_table_lookup (cache, callsig);
3916 mono_marshal_unlock ();
3918 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3919 info->d.runtime_invoke.sig = callsig;
3921 /* Somebody may have created it before us */
3924 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3926 mono_marshal_lock ();
3927 res = g_hash_table_lookup (cache, callsig);
3930 g_hash_table_insert (cache, callsig, res);
3931 /* Can't insert it into wrapper_hash since the key is a signature */
3932 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3934 mono_free_method (newm);
3936 mono_marshal_unlock ();
3939 /* end mono_mb_create_and_cache */
3948 * mono_marshal_get_runtime_invoke_dynamic:
3950 * Return a method which can be used to invoke managed methods from native code
3952 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3953 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3954 * ARGS should point to an architecture specific structure containing
3955 * the arguments and space for the return value.
3956 * The other arguments are the same as for runtime_invoke (), except that
3957 * ARGS should contain the this argument too.
3958 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3959 * is only one copy of it, which is useful in full-aot.
3960 * The wrapper info for the wrapper is a WrapperInfo structure.
3963 mono_marshal_get_runtime_invoke_dynamic (void)
3965 static MonoMethod *method;
3966 MonoMethodSignature *csig;
3967 MonoExceptionClause *clause;
3968 MonoMethodBuilder *mb;
3976 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3978 csig->ret = &mono_defaults.void_class->byval_arg;
3979 csig->params [0] = &mono_defaults.int_class->byval_arg;
3980 csig->params [1] = &mono_defaults.int_class->byval_arg;
3981 csig->params [2] = &mono_defaults.int_class->byval_arg;
3982 csig->params [3] = &mono_defaults.int_class->byval_arg;
3984 name = g_strdup ("runtime_invoke_dynamic");
3985 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
3989 /* allocate local 0 (object) tmp */
3990 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3991 /* allocate local 1 (object) exc */
3992 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3994 /* cond set *exc to null */
3995 mono_mb_emit_byte (mb, CEE_LDARG_1);
3996 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3997 mono_mb_emit_byte (mb, 3);
3998 mono_mb_emit_byte (mb, CEE_LDARG_1);
3999 mono_mb_emit_byte (mb, CEE_LDNULL);
4000 mono_mb_emit_byte (mb, CEE_STIND_REF);
4002 emit_thread_force_interrupt_checkpoint (mb);
4004 mono_mb_emit_byte (mb, CEE_LDARG_0);
4005 mono_mb_emit_byte (mb, CEE_LDARG_2);
4006 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4007 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4009 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4011 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4012 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4013 clause->try_len = mono_mb_get_label (mb);
4016 clause->data.filter_offset = mono_mb_get_label (mb);
4018 mono_mb_emit_byte (mb, CEE_POP);
4019 mono_mb_emit_byte (mb, CEE_LDARG_1);
4020 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4021 mono_mb_emit_byte (mb, CEE_PREFIX1);
4022 mono_mb_emit_byte (mb, CEE_CGT_UN);
4023 mono_mb_emit_byte (mb, CEE_PREFIX1);
4024 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4026 clause->handler_offset = mono_mb_get_label (mb);
4029 /* store exception */
4030 mono_mb_emit_stloc (mb, 1);
4032 mono_mb_emit_byte (mb, CEE_LDARG_1);
4033 mono_mb_emit_ldloc (mb, 1);
4034 mono_mb_emit_byte (mb, CEE_STIND_REF);
4036 mono_mb_emit_byte (mb, CEE_LDNULL);
4037 mono_mb_emit_stloc (mb, 0);
4039 /* Check for the abort exception */
4040 mono_mb_emit_ldloc (mb, 1);
4041 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4042 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4044 /* Delay the abort exception */
4045 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4047 mono_mb_patch_short_branch (mb, posna);
4048 mono_mb_emit_branch (mb, CEE_LEAVE);
4050 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4052 mono_mb_set_clauses (mb, 1, clause);
4055 mono_mb_patch_branch (mb, pos);
4056 //mono_mb_emit_ldloc (mb, 0);
4057 mono_mb_emit_byte (mb, CEE_RET);
4058 #endif /* DISABLE_JIT */
4060 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4062 mono_marshal_lock ();
4063 /* double-checked locking */
4065 method = mono_mb_create (mb, csig, 16, info);
4067 mono_marshal_unlock ();
4076 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4078 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4079 klass->name_space, klass->name);
4081 mono_mb_emit_exception_marshal_directive (mb, msg);
4086 * generates IL code for the icall wrapper (the generated method
4087 * calls the unmanaged code in func)
4088 * The wrapper info for the wrapper is a WrapperInfo structure.
4091 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4093 MonoMethodSignature *csig, *csig2;
4094 MonoMethodBuilder *mb;
4099 g_assert (sig->pinvoke);
4101 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4103 mb->method->save_lmf = 1;
4105 /* Add an explicit this argument */
4107 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4109 csig2 = signature_dup (mono_defaults.corlib, sig);
4113 mono_mb_emit_byte (mb, CEE_LDARG_0);
4115 for (i = 0; i < sig->param_count; i++)
4116 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4118 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4119 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4120 mono_mb_emit_calli (mb, csig2);
4121 if (check_exceptions)
4122 emit_thread_interrupt_checkpoint (mb);
4123 mono_mb_emit_byte (mb, CEE_RET);
4126 csig = signature_dup (mono_defaults.corlib, sig);
4128 if (csig->call_convention == MONO_CALL_VARARG)
4129 csig->call_convention = 0;
4131 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4132 info->d.icall.func = (gpointer)func;
4133 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4140 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4141 MonoMarshalSpec *spec,
4142 int conv_arg, MonoType **conv_arg_type,
4143 MarshalAction action)
4146 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4147 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4152 static MonoClass *ICustomMarshaler = NULL;
4153 static MonoMethod *cleanup_native, *cleanup_managed;
4154 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4155 MonoMethod *get_instance = NULL;
4156 MonoMethodBuilder *mb = m->mb;
4157 char *exception_msg = NULL;
4161 if (!ICustomMarshaler) {
4162 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4164 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4165 goto handle_exception;
4168 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4169 g_assert (cleanup_native);
4170 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4171 g_assert (cleanup_managed);
4172 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4173 g_assert (marshal_managed_to_native);
4174 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4175 g_assert (marshal_native_to_managed);
4177 mono_memory_barrier ();
4178 ICustomMarshaler = klass;
4181 if (spec->data.custom_data.image)
4182 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4184 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4185 g_assert (mtype != NULL);
4186 mklass = mono_class_from_mono_type (mtype);
4187 g_assert (mklass != NULL);
4189 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4190 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4192 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4194 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4195 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4196 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4197 (get_sig->params [0]->type != MONO_TYPE_STRING))
4198 get_instance = NULL;
4202 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);
4205 /* Throw exception and emit compensation code if neccesary */
4206 if (exception_msg) {
4208 case MARSHAL_ACTION_CONV_IN:
4209 case MARSHAL_ACTION_CONV_RESULT:
4210 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4211 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4212 mono_mb_emit_byte (mb, CEE_POP);
4214 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4215 g_free (exception_msg);
4218 case MARSHAL_ACTION_PUSH:
4219 mono_mb_emit_byte (mb, CEE_LDNULL);
4227 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4228 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4231 case MARSHAL_ACTION_CONV_IN:
4233 case MONO_TYPE_CLASS:
4234 case MONO_TYPE_OBJECT:
4235 case MONO_TYPE_STRING:
4236 case MONO_TYPE_ARRAY:
4237 case MONO_TYPE_SZARRAY:
4238 case MONO_TYPE_VALUETYPE:
4242 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4243 g_assert_not_reached ();
4247 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4249 mono_mb_emit_byte (mb, CEE_LDNULL);
4250 mono_mb_emit_stloc (mb, conv_arg);
4252 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4255 /* Minic MS.NET behavior */
4256 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4259 /* Check for null */
4260 mono_mb_emit_ldarg (mb, argnum);
4262 mono_mb_emit_byte (mb, CEE_LDIND_I);
4263 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4265 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4267 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4269 mono_mb_emit_ldarg (mb, argnum);
4271 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4273 if (t->type == MONO_TYPE_VALUETYPE) {
4275 * Since we can't determine the type of the argument, we
4276 * will assume the unmanaged function takes a pointer.
4278 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4280 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4283 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4284 mono_mb_emit_stloc (mb, conv_arg);
4286 mono_mb_patch_branch (mb, pos2);
4289 case MARSHAL_ACTION_CONV_OUT:
4290 /* Check for null */
4291 mono_mb_emit_ldloc (mb, conv_arg);
4292 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4295 mono_mb_emit_ldarg (mb, argnum);
4297 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4299 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4301 mono_mb_emit_ldloc (mb, conv_arg);
4302 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4303 mono_mb_emit_byte (mb, CEE_STIND_REF);
4304 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4305 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4307 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4309 mono_mb_emit_ldloc (mb, conv_arg);
4310 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4312 /* We have nowhere to store the result */
4313 mono_mb_emit_byte (mb, CEE_POP);
4316 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4318 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4320 mono_mb_emit_ldloc (mb, conv_arg);
4322 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4324 mono_mb_patch_branch (mb, pos2);
4327 case MARSHAL_ACTION_PUSH:
4329 mono_mb_emit_ldloc_addr (mb, conv_arg);
4331 mono_mb_emit_ldloc (mb, conv_arg);
4334 case MARSHAL_ACTION_CONV_RESULT:
4335 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4337 mono_mb_emit_stloc (mb, 3);
4339 mono_mb_emit_ldloc (mb, 3);
4340 mono_mb_emit_stloc (mb, loc1);
4342 /* Check for null */
4343 mono_mb_emit_ldloc (mb, 3);
4344 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4346 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4348 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4349 mono_mb_emit_byte (mb, CEE_DUP);
4351 mono_mb_emit_ldloc (mb, 3);
4352 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4353 mono_mb_emit_stloc (mb, 3);
4355 mono_mb_emit_ldloc (mb, loc1);
4356 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4358 mono_mb_patch_branch (mb, pos2);
4361 case MARSHAL_ACTION_MANAGED_CONV_IN:
4362 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4364 mono_mb_emit_byte (mb, CEE_LDNULL);
4365 mono_mb_emit_stloc (mb, conv_arg);
4367 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4370 /* Check for null */
4371 mono_mb_emit_ldarg (mb, argnum);
4373 mono_mb_emit_byte (mb, CEE_LDIND_I);
4374 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4376 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4377 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4379 mono_mb_emit_ldarg (mb, argnum);
4381 mono_mb_emit_byte (mb, CEE_LDIND_I);
4383 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4384 mono_mb_emit_stloc (mb, conv_arg);
4386 mono_mb_patch_branch (mb, pos2);
4389 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4390 g_assert (!t->byref);
4392 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4394 mono_mb_emit_stloc (mb, 3);
4396 mono_mb_emit_ldloc (mb, 3);
4397 mono_mb_emit_stloc (mb, loc1);
4399 /* Check for null */
4400 mono_mb_emit_ldloc (mb, 3);
4401 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4403 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4404 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4405 mono_mb_emit_byte (mb, CEE_DUP);
4407 mono_mb_emit_ldloc (mb, 3);
4408 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4409 mono_mb_emit_stloc (mb, 3);
4411 mono_mb_emit_ldloc (mb, loc1);
4412 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4414 mono_mb_patch_branch (mb, pos2);
4417 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4419 /* Check for null */
4420 mono_mb_emit_ldloc (mb, conv_arg);
4421 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4424 mono_mb_emit_ldarg (mb, argnum);
4426 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4428 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4430 mono_mb_emit_ldloc (mb, conv_arg);
4431 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4432 mono_mb_emit_byte (mb, CEE_STIND_I);
4435 /* Call CleanUpManagedData */
4436 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4438 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4440 mono_mb_emit_ldloc (mb, conv_arg);
4441 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4443 mono_mb_patch_branch (mb, pos2);
4447 g_assert_not_reached ();
4455 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4456 MonoMarshalSpec *spec,
4457 int conv_arg, MonoType **conv_arg_type,
4458 MarshalAction action)
4461 MonoMethodBuilder *mb = m->mb;
4464 case MARSHAL_ACTION_CONV_IN: {
4465 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4467 g_assert (t->type == MONO_TYPE_OBJECT);
4468 g_assert (!t->byref);
4470 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4471 mono_mb_emit_ldarg (mb, argnum);
4472 mono_mb_emit_icon (mb, encoding);
4473 mono_mb_emit_icon (mb, t->attrs);
4474 mono_mb_emit_icall (mb, mono_marshal_asany);
4475 mono_mb_emit_stloc (mb, conv_arg);
4479 case MARSHAL_ACTION_PUSH:
4480 mono_mb_emit_ldloc (mb, conv_arg);
4483 case MARSHAL_ACTION_CONV_OUT: {
4484 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4486 mono_mb_emit_ldarg (mb, argnum);
4487 mono_mb_emit_ldloc (mb, conv_arg);
4488 mono_mb_emit_icon (mb, encoding);
4489 mono_mb_emit_icon (mb, t->attrs);
4490 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4495 g_assert_not_reached ();
4502 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4503 MonoMarshalSpec *spec,
4504 int conv_arg, MonoType **conv_arg_type,
4505 MarshalAction action)
4508 MonoMethodBuilder *mb = m->mb;
4509 MonoClass *klass, *date_time_class;
4512 klass = mono_class_from_mono_type (t);
4514 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4517 case MARSHAL_ACTION_CONV_IN:
4518 if (klass == date_time_class) {
4519 /* Convert it to an OLE DATE type */
4520 static MonoMethod *to_oadate;
4523 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4524 g_assert (to_oadate);
4526 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4529 mono_mb_emit_ldarg (mb, argnum);
4530 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4533 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4535 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4537 mono_mb_emit_ldarg_addr (mb, argnum);
4538 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4539 mono_mb_emit_stloc (mb, conv_arg);
4543 mono_mb_patch_branch (mb, pos);
4547 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4548 klass->blittable || klass->enumtype)
4551 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4553 /* store the address of the source into local variable 0 */
4555 mono_mb_emit_ldarg (mb, argnum);
4557 mono_mb_emit_ldarg_addr (mb, argnum);
4559 mono_mb_emit_stloc (mb, 0);
4561 /* allocate space for the native struct and
4562 * store the address into local variable 1 (dest) */
4563 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4564 mono_mb_emit_byte (mb, CEE_PREFIX1);
4565 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4566 mono_mb_emit_stloc (mb, conv_arg);
4569 mono_mb_emit_ldloc (mb, 0);
4570 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4573 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4575 mono_mb_emit_ldloc (mb, conv_arg);
4576 mono_mb_emit_stloc (mb, 1);
4578 /* emit valuetype conversion code */
4579 emit_struct_conv (mb, klass, FALSE);
4583 mono_mb_patch_branch (mb, pos);
4586 case MARSHAL_ACTION_PUSH:
4587 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4589 g_assert (!t->byref);
4591 /* Have to change the signature since the vtype is passed byref */
4592 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4594 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4595 klass->blittable || klass->enumtype)
4596 mono_mb_emit_ldarg_addr (mb, argnum);
4598 mono_mb_emit_ldloc (mb, conv_arg);
4602 if (klass == date_time_class) {
4604 mono_mb_emit_ldloc_addr (mb, conv_arg);
4606 mono_mb_emit_ldloc (mb, conv_arg);
4610 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4611 klass->blittable || klass->enumtype) {
4612 mono_mb_emit_ldarg (mb, argnum);
4615 mono_mb_emit_ldloc (mb, conv_arg);
4617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4618 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4622 case MARSHAL_ACTION_CONV_OUT:
4623 if (klass == date_time_class) {
4624 /* Convert from an OLE DATE type */
4625 static MonoMethod *from_oadate;
4630 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4632 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4633 g_assert (from_oadate);
4635 mono_mb_emit_ldarg (mb, argnum);
4636 mono_mb_emit_ldloc (mb, conv_arg);
4637 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4638 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4643 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4644 klass->blittable || klass->enumtype)
4648 /* dst = argument */
4649 mono_mb_emit_ldarg (mb, argnum);
4650 mono_mb_emit_stloc (mb, 1);
4652 mono_mb_emit_ldloc (mb, 1);
4653 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4655 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4656 /* src = tmp_locals [i] */
4657 mono_mb_emit_ldloc (mb, conv_arg);
4658 mono_mb_emit_stloc (mb, 0);
4660 /* emit valuetype conversion code */
4661 emit_struct_conv (mb, klass, TRUE);
4665 emit_struct_free (mb, klass, conv_arg);
4668 mono_mb_patch_branch (mb, pos);
4671 case MARSHAL_ACTION_CONV_RESULT:
4672 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4674 mono_mb_emit_stloc (mb, 3);
4678 /* load pointer to returned value type */
4679 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4680 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4681 /* store the address of the source into local variable 0 */
4682 mono_mb_emit_stloc (mb, 0);
4684 mono_mb_emit_ldloc_addr (mb, 3);
4685 mono_mb_emit_stloc (mb, 1);
4687 /* emit valuetype conversion code */
4688 emit_struct_conv (mb, klass, TRUE);
4691 case MARSHAL_ACTION_MANAGED_CONV_IN:
4692 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4693 klass->blittable || klass->enumtype) {
4698 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4700 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4704 mono_mb_emit_ldarg (mb, argnum);
4706 mono_mb_emit_ldarg_addr (mb, argnum);
4707 mono_mb_emit_stloc (mb, 0);
4710 mono_mb_emit_ldloc (mb, 0);
4711 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4714 mono_mb_emit_ldloc_addr (mb, conv_arg);
4715 mono_mb_emit_stloc (mb, 1);
4717 /* emit valuetype conversion code */
4718 emit_struct_conv (mb, klass, TRUE);
4721 mono_mb_patch_branch (mb, pos);
4724 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4725 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4726 klass->blittable || klass->enumtype) {
4730 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4733 /* Check for null */
4734 mono_mb_emit_ldarg (mb, argnum);
4735 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4738 mono_mb_emit_ldloc_addr (mb, conv_arg);
4739 mono_mb_emit_stloc (mb, 0);
4742 mono_mb_emit_ldarg (mb, argnum);
4743 mono_mb_emit_stloc (mb, 1);
4745 /* emit valuetype conversion code */
4746 emit_struct_conv (mb, klass, FALSE);
4748 mono_mb_patch_branch (mb, pos2);
4751 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4752 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4753 klass->blittable || klass->enumtype) {
4754 mono_mb_emit_stloc (mb, 3);
4759 /* load pointer to returned value type */
4760 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4761 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4763 /* store the address of the source into local variable 0 */
4764 mono_mb_emit_stloc (mb, 0);
4765 /* allocate space for the native struct and
4766 * store the address into dst_ptr */
4767 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4768 m->retobj_class = klass;
4769 g_assert (m->retobj_var);
4770 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4771 mono_mb_emit_byte (mb, CEE_CONV_I);
4772 mono_mb_emit_icall (mb, mono_marshal_alloc);
4773 mono_mb_emit_stloc (mb, 1);
4774 mono_mb_emit_ldloc (mb, 1);
4775 mono_mb_emit_stloc (mb, m->retobj_var);
4777 /* emit valuetype conversion code */
4778 emit_struct_conv (mb, klass, FALSE);
4782 g_assert_not_reached ();
4789 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4790 MonoMarshalSpec *spec,
4791 int conv_arg, MonoType **conv_arg_type,
4792 MarshalAction action)
4796 case MARSHAL_ACTION_CONV_IN:
4797 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4799 case MARSHAL_ACTION_MANAGED_CONV_IN:
4800 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4804 MonoMethodBuilder *mb = m->mb;
4805 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4806 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4810 case MARSHAL_ACTION_CONV_IN:
4811 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4812 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4815 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4818 mono_mb_emit_ldarg (mb, argnum);
4819 mono_mb_emit_byte (mb, CEE_LDIND_I);
4821 mono_mb_emit_ldarg (mb, argnum);
4825 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4826 mono_mb_emit_exception_marshal_directive (mb, msg);
4828 mono_mb_emit_icall (mb, conv_to_icall (conv));
4830 mono_mb_emit_stloc (mb, conv_arg);
4834 case MARSHAL_ACTION_CONV_OUT:
4835 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4837 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4838 mono_mb_emit_exception_marshal_directive (mb, msg);
4842 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4843 static MonoMethod *m;
4846 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4851 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4852 mono_mb_emit_exception_marshal_directive (mb, msg);
4857 * Have to allocate a new string with the same length as the original, and
4858 * copy the contents of the buffer pointed to by CONV_ARG into it.
4860 g_assert (t->byref);
4861 mono_mb_emit_ldarg (mb, argnum);
4862 mono_mb_emit_ldloc (mb, conv_arg);
4863 mono_mb_emit_ldarg (mb, argnum);
4864 mono_mb_emit_byte (mb, CEE_LDIND_I);
4865 mono_mb_emit_managed_call (mb, m, NULL);
4866 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4867 mono_mb_emit_byte (mb, CEE_STIND_REF);
4868 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4869 mono_mb_emit_ldarg (mb, argnum);
4870 mono_mb_emit_ldloc (mb, conv_arg);
4871 mono_mb_emit_icall (mb, conv_to_icall (conv));
4872 mono_mb_emit_byte (mb, CEE_STIND_REF);
4877 mono_mb_emit_ldloc (mb, conv_arg);
4878 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4879 mono_mb_emit_icall (mb, mono_free_bstr);
4881 mono_mb_emit_icall (mb, mono_marshal_free);
4885 case MARSHAL_ACTION_PUSH:
4886 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4887 mono_mb_emit_ldloc_addr (mb, conv_arg);
4889 mono_mb_emit_ldloc (mb, conv_arg);
4892 case MARSHAL_ACTION_CONV_RESULT:
4893 mono_mb_emit_stloc (mb, 0);
4895 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4897 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4898 mono_mb_emit_exception_marshal_directive (mb, msg);
4902 mono_mb_emit_ldloc (mb, 0);
4903 mono_mb_emit_icall (mb, conv_to_icall (conv));
4904 mono_mb_emit_stloc (mb, 3);
4906 /* free the string */
4907 mono_mb_emit_ldloc (mb, 0);
4908 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4909 mono_mb_emit_icall (mb, mono_free_bstr);
4911 mono_mb_emit_icall (mb, mono_marshal_free);
4914 case MARSHAL_ACTION_MANAGED_CONV_IN:
4915 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4917 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4920 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4924 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4926 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4927 mono_mb_emit_exception_marshal_directive (mb, msg);
4931 mono_mb_emit_ldarg (mb, argnum);
4933 mono_mb_emit_byte (mb, CEE_LDIND_I);
4934 mono_mb_emit_icall (mb, conv_to_icall (conv));
4935 mono_mb_emit_stloc (mb, conv_arg);
4938 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4941 mono_mb_emit_ldarg (mb, argnum);
4942 mono_mb_emit_ldloc (mb, conv_arg);
4943 mono_mb_emit_icall (mb, conv_to_icall (conv));
4944 mono_mb_emit_byte (mb, CEE_STIND_I);
4949 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4950 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4951 /* We need to make a copy so the caller is able to free it */
4952 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4954 mono_mb_emit_icall (mb, conv_to_icall (conv));
4955 mono_mb_emit_stloc (mb, 3);
4959 g_assert_not_reached ();
4967 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4968 MonoMarshalSpec *spec, int conv_arg,
4969 MonoType **conv_arg_type, MarshalAction action)
4972 if (action == MARSHAL_ACTION_CONV_IN)
4973 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4975 MonoMethodBuilder *mb = m->mb;
4978 case MARSHAL_ACTION_CONV_IN: {
4979 MonoType *intptr_type;
4980 int dar_release_slot, pos;
4982 intptr_type = &mono_defaults.int_class->byval_arg;
4983 conv_arg = mono_mb_add_local (mb, intptr_type);
4984 *conv_arg_type = intptr_type;
4986 if (!sh_dangerous_add_ref)
4987 init_safe_handle ();
4989 mono_mb_emit_ldarg (mb, argnum);
4990 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4991 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4993 mono_mb_patch_branch (mb, pos);
4996 * My tests in show that ref SafeHandles are not really
4997 * passed as ref objects. Instead a NULL is passed as the
5000 mono_mb_emit_icon (mb, 0);
5001 mono_mb_emit_stloc (mb, conv_arg);
5005 /* Create local to hold the ref parameter to DangerousAddRef */
5006 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5008 /* set release = false; */
5009 mono_mb_emit_icon (mb, 0);
5010 mono_mb_emit_stloc (mb, dar_release_slot);
5012 /* safehandle.DangerousAddRef (ref release) */
5013 mono_mb_emit_ldarg (mb, argnum);
5014 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5015 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5017 /* Pull the handle field from SafeHandle */
5018 mono_mb_emit_ldarg (mb, argnum);
5019 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5020 mono_mb_emit_byte (mb, CEE_LDIND_I);
5021 mono_mb_emit_stloc (mb, conv_arg);
5026 case MARSHAL_ACTION_PUSH:
5028 mono_mb_emit_ldloc_addr (mb, conv_arg);
5030 mono_mb_emit_ldloc (mb, conv_arg);
5033 case MARSHAL_ACTION_CONV_OUT: {
5034 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5035 int dar_release_slot = conv_arg + 1;
5038 if (!sh_dangerous_release)
5039 init_safe_handle ();
5045 * My tests indicate that ref SafeHandles parameters are not actually
5046 * passed by ref, but instead a new Handle is created regardless of
5047 * whether a change happens in the unmanaged side.
5049 * Also, the Handle is created before calling into unmanaged code,
5050 * but we do not support that mechanism (getting to the original
5051 * handle) and it makes no difference where we create this
5053 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5055 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5058 /* refval = new SafeHandleDerived ()*/
5059 mono_mb_emit_ldarg (mb, argnum);
5060 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5061 mono_mb_emit_byte (mb, CEE_STIND_REF);
5063 /* refval.handle = returned_handle */
5064 mono_mb_emit_ldarg (mb, argnum);
5065 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5066 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5067 mono_mb_emit_ldloc (mb, conv_arg);
5068 mono_mb_emit_byte (mb, CEE_STIND_I);
5070 mono_mb_emit_ldloc (mb, dar_release_slot);
5071 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5072 mono_mb_emit_ldarg (mb, argnum);
5073 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5074 mono_mb_patch_branch (mb, label_next);
5079 case MARSHAL_ACTION_CONV_RESULT: {
5080 MonoMethod *ctor = NULL;
5081 int intptr_handle_slot;
5083 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5084 mono_mb_emit_byte (mb, CEE_POP);
5085 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5089 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5091 mono_mb_emit_byte (mb, CEE_POP);
5092 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5095 /* Store the IntPtr results into a local */
5096 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5097 mono_mb_emit_stloc (mb, intptr_handle_slot);
5099 /* Create return value */
5100 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5101 mono_mb_emit_stloc (mb, 3);
5103 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5104 mono_mb_emit_ldloc (mb, 3);
5105 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5106 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5107 mono_mb_emit_byte (mb, CEE_STIND_I);
5111 case MARSHAL_ACTION_MANAGED_CONV_IN:
5112 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5115 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5116 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5119 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5120 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5123 printf ("Unhandled case for MarshalAction: %d\n", action);
5131 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5132 MonoMarshalSpec *spec, int conv_arg,
5133 MonoType **conv_arg_type, MarshalAction action)
5136 if (action == MARSHAL_ACTION_CONV_IN)
5137 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5139 MonoMethodBuilder *mb = m->mb;
5142 case MARSHAL_ACTION_CONV_IN: {
5143 MonoType *intptr_type;
5145 intptr_type = &mono_defaults.int_class->byval_arg;
5146 conv_arg = mono_mb_add_local (mb, intptr_type);
5147 *conv_arg_type = intptr_type;
5150 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5151 mono_mb_emit_exception_marshal_directive (mb, msg);
5154 mono_mb_emit_ldarg_addr (mb, argnum);
5155 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5156 mono_mb_emit_byte (mb, CEE_ADD);
5157 mono_mb_emit_byte (mb, CEE_LDIND_I);
5158 mono_mb_emit_stloc (mb, conv_arg);
5162 case MARSHAL_ACTION_PUSH:
5163 mono_mb_emit_ldloc (mb, conv_arg);
5166 case MARSHAL_ACTION_CONV_OUT: {
5167 /* no resource release required */
5171 case MARSHAL_ACTION_CONV_RESULT: {
5172 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5173 mono_mb_emit_exception_marshal_directive (mb, msg);
5177 case MARSHAL_ACTION_MANAGED_CONV_IN:
5178 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5181 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5182 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5185 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5186 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5189 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5197 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5198 MonoMarshalSpec *spec,
5199 int conv_arg, MonoType **conv_arg_type,
5200 MarshalAction action)
5203 if (action == MARSHAL_ACTION_CONV_IN)
5204 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5206 MonoMethodBuilder *mb = m->mb;
5207 MonoClass *klass = mono_class_from_mono_type (t);
5211 case MARSHAL_ACTION_CONV_IN:
5212 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5213 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5215 m->orig_conv_args [argnum] = 0;
5217 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5218 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5219 mono_mb_emit_exception_marshal_directive (mb, msg);
5223 if (klass->delegate) {
5225 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5226 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5227 mono_mb_emit_exception_marshal_directive (mb, msg);
5229 mono_mb_emit_byte (mb, CEE_LDNULL);
5230 mono_mb_emit_stloc (mb, conv_arg);
5232 mono_mb_emit_ldarg (mb, argnum);
5233 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5234 mono_mb_emit_stloc (mb, conv_arg);
5236 } else if (klass == mono_defaults.stringbuilder_class) {
5237 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5238 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5242 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5243 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5244 mono_mb_emit_exception_marshal_directive (mb, msg);
5250 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5254 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5255 mono_mb_emit_exception_marshal_directive (mb, msg);
5259 mono_mb_emit_ldarg (mb, argnum);
5261 mono_mb_emit_byte (mb, CEE_LDIND_I);
5263 mono_mb_emit_icall (mb, conv_to_icall (conv));
5264 mono_mb_emit_stloc (mb, conv_arg);
5265 } else if (klass->blittable) {
5266 mono_mb_emit_byte (mb, CEE_LDNULL);
5267 mono_mb_emit_stloc (mb, conv_arg);
5269 mono_mb_emit_ldarg (mb, argnum);
5270 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5272 mono_mb_emit_ldarg (mb, argnum);
5273 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5274 mono_mb_emit_stloc (mb, conv_arg);
5276 mono_mb_patch_branch (mb, pos);
5279 mono_mb_emit_byte (mb, CEE_LDNULL);
5280 mono_mb_emit_stloc (mb, conv_arg);
5283 /* we dont need any conversions for out parameters */
5284 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5287 mono_mb_emit_ldarg (mb, argnum);
5288 mono_mb_emit_byte (mb, CEE_LDIND_I);
5291 mono_mb_emit_ldarg (mb, argnum);
5292 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5293 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5296 /* store the address of the source into local variable 0 */
5297 mono_mb_emit_stloc (mb, 0);
5298 mono_mb_emit_ldloc (mb, 0);
5299 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5301 /* allocate space for the native struct and store the address */
5302 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5303 mono_mb_emit_byte (mb, CEE_PREFIX1);
5304 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5305 mono_mb_emit_stloc (mb, conv_arg);
5308 /* Need to store the original buffer so we can free it later */
5309 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5310 mono_mb_emit_ldloc (mb, conv_arg);
5311 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5314 /* set the src_ptr */
5315 mono_mb_emit_ldloc (mb, 0);
5316 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5317 mono_mb_emit_stloc (mb, 0);
5320 mono_mb_emit_ldloc (mb, conv_arg);
5321 mono_mb_emit_stloc (mb, 1);
5323 /* emit valuetype conversion code */
5324 emit_struct_conv (mb, klass, FALSE);
5326 mono_mb_patch_branch (mb, pos);
5330 case MARSHAL_ACTION_CONV_OUT:
5331 if (klass == mono_defaults.stringbuilder_class) {
5333 MonoMarshalNative encoding;
5334 MonoMarshalConv conv;
5336 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5337 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5339 g_assert (encoding != -1);
5342 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5346 mono_mb_emit_ldarg (mb, argnum);
5347 mono_mb_emit_ldloc (mb, conv_arg);
5350 case MONO_NATIVE_LPWSTR:
5351 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5353 case MONO_NATIVE_LPSTR:
5354 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5357 g_assert_not_reached ();
5360 mono_mb_emit_byte (mb, CEE_STIND_REF);
5362 mono_mb_emit_ldarg (mb, argnum);
5363 mono_mb_emit_ldloc (mb, conv_arg);
5365 mono_mb_emit_icall (mb, conv_to_icall (conv));
5369 mono_mb_emit_ldloc (mb, conv_arg);
5370 mono_mb_emit_icall (mb, mono_marshal_free);
5375 if (klass->delegate) {
5377 mono_mb_emit_ldarg (mb, argnum);
5378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5379 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5380 mono_mb_emit_ldloc (mb, conv_arg);
5381 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5382 mono_mb_emit_byte (mb, CEE_STIND_REF);
5387 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5388 /* allocate a new object */
5389 mono_mb_emit_ldarg (mb, argnum);
5390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5391 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5392 mono_mb_emit_byte (mb, CEE_STIND_REF);
5395 /* dst = *argument */
5396 mono_mb_emit_ldarg (mb, argnum);
5399 mono_mb_emit_byte (mb, CEE_LDIND_I);
5401 mono_mb_emit_stloc (mb, 1);
5403 mono_mb_emit_ldloc (mb, 1);
5404 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5406 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5407 mono_mb_emit_ldloc (mb, 1);
5408 mono_mb_emit_icon (mb, sizeof (MonoObject));
5409 mono_mb_emit_byte (mb, CEE_ADD);
5410 mono_mb_emit_stloc (mb, 1);
5412 /* src = tmp_locals [i] */
5413 mono_mb_emit_ldloc (mb, conv_arg);
5414 mono_mb_emit_stloc (mb, 0);
5416 /* emit valuetype conversion code */
5417 emit_struct_conv (mb, klass, TRUE);
5419 /* Free the structure returned by the native code */
5420 emit_struct_free (mb, klass, conv_arg);
5422 if (m->orig_conv_args [argnum]) {
5424 * If the native function changed the pointer, then free
5425 * the original structure plus the new pointer.
5427 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5428 mono_mb_emit_ldloc (mb, conv_arg);
5429 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5431 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5432 g_assert (m->orig_conv_args [argnum]);
5434 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5437 mono_mb_emit_ldloc (mb, conv_arg);
5438 mono_mb_emit_icall (mb, mono_marshal_free);
5440 mono_mb_patch_branch (mb, pos2);
5444 /* Free the original structure passed to native code */
5445 emit_struct_free (mb, klass, conv_arg);
5447 mono_mb_patch_branch (mb, pos);
5450 case MARSHAL_ACTION_PUSH:
5452 mono_mb_emit_ldloc_addr (mb, conv_arg);
5454 mono_mb_emit_ldloc (mb, conv_arg);
5457 case MARSHAL_ACTION_CONV_RESULT:
5458 if (klass->delegate) {
5459 g_assert (!t->byref);
5460 mono_mb_emit_stloc (mb, 0);
5461 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5462 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5463 mono_mb_emit_ldloc (mb, 0);
5464 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5465 mono_mb_emit_stloc (mb, 3);
5468 mono_mb_emit_stloc (mb, 0);
5470 /* Make a copy since emit_conv modifies local 0 */
5471 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5472 mono_mb_emit_ldloc (mb, 0);
5473 mono_mb_emit_stloc (mb, loc);
5475 mono_mb_emit_byte (mb, CEE_LDNULL);
5476 mono_mb_emit_stloc (mb, 3);
5478 mono_mb_emit_ldloc (mb, 0);
5479 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5481 /* allocate result object */
5483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5484 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5485 mono_mb_emit_stloc (mb, 3);
5489 mono_mb_emit_ldloc (mb, 3);
5490 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5491 mono_mb_emit_stloc (mb, 1);
5493 /* emit conversion code */
5494 emit_struct_conv (mb, klass, TRUE);
5496 emit_struct_free (mb, klass, loc);
5498 /* Free the pointer allocated by unmanaged code */
5499 mono_mb_emit_ldloc (mb, loc);
5500 mono_mb_emit_icall (mb, mono_marshal_free);
5501 mono_mb_patch_branch (mb, pos);
5505 case MARSHAL_ACTION_MANAGED_CONV_IN:
5506 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5508 if (klass->delegate) {
5509 g_assert (!t->byref);
5510 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5511 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5512 mono_mb_emit_ldarg (mb, argnum);
5513 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5514 mono_mb_emit_stloc (mb, conv_arg);
5518 if (klass == mono_defaults.stringbuilder_class) {
5519 MonoMarshalNative encoding;
5521 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5524 g_assert (encoding == MONO_NATIVE_LPSTR);
5526 g_assert (!t->byref);
5527 g_assert (encoding != -1);
5529 mono_mb_emit_ldarg (mb, argnum);
5530 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5531 mono_mb_emit_stloc (mb, conv_arg);
5535 /* The class can not have an automatic layout */
5536 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5537 mono_mb_emit_auto_layout_exception (mb, klass);
5541 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5542 mono_mb_emit_byte (mb, CEE_LDNULL);
5543 mono_mb_emit_stloc (mb, conv_arg);
5548 mono_mb_emit_ldarg (mb, argnum);
5552 /* Check for NULL and raise an exception */
5553 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5555 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5557 mono_mb_patch_branch (mb, pos2);
5558 mono_mb_emit_ldarg (mb, argnum);
5559 mono_mb_emit_byte (mb, CEE_LDIND_I);
5562 mono_mb_emit_stloc (mb, 0);
5564 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5565 mono_mb_emit_stloc (mb, conv_arg);
5567 mono_mb_emit_ldloc (mb, 0);
5568 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5570 /* Create and set dst */
5571 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5572 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5573 mono_mb_emit_stloc (mb, conv_arg);
5574 mono_mb_emit_ldloc (mb, conv_arg);
5575 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5576 mono_mb_emit_stloc (mb, 1);
5578 /* emit valuetype conversion code */
5579 emit_struct_conv (mb, klass, TRUE);
5581 mono_mb_patch_branch (mb, pos);
5584 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5586 /* Check for null */
5587 mono_mb_emit_ldloc (mb, conv_arg);
5588 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5589 mono_mb_emit_ldarg (mb, argnum);
5590 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5591 mono_mb_emit_byte (mb, CEE_STIND_REF);
5592 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5594 mono_mb_patch_branch (mb, pos);
5597 mono_mb_emit_ldloc (mb, conv_arg);
5598 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5599 mono_mb_emit_stloc (mb, 0);
5601 /* Allocate and set dest */
5602 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5603 mono_mb_emit_byte (mb, CEE_CONV_I);
5604 mono_mb_emit_icall (mb, mono_marshal_alloc);
5605 mono_mb_emit_stloc (mb, 1);
5607 /* Update argument pointer */
5608 mono_mb_emit_ldarg (mb, argnum);
5609 mono_mb_emit_ldloc (mb, 1);
5610 mono_mb_emit_byte (mb, CEE_STIND_I);
5612 /* emit valuetype conversion code */
5613 emit_struct_conv (mb, klass, FALSE);
5615 mono_mb_patch_branch (mb, pos2);
5617 /* byval [Out] marshalling */
5619 /* FIXME: Handle null */
5622 mono_mb_emit_ldloc (mb, conv_arg);
5623 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5624 mono_mb_emit_stloc (mb, 0);
5627 mono_mb_emit_ldarg (mb, argnum);
5628 mono_mb_emit_stloc (mb, 1);
5630 /* emit valuetype conversion code */
5631 emit_struct_conv (mb, klass, FALSE);
5635 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5636 if (klass->delegate) {
5637 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5638 mono_mb_emit_stloc (mb, 3);
5642 /* The class can not have an automatic layout */
5643 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5644 mono_mb_emit_auto_layout_exception (mb, klass);
5648 mono_mb_emit_stloc (mb, 0);
5649 /* Check for null */
5650 mono_mb_emit_ldloc (mb, 0);
5651 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5652 mono_mb_emit_byte (mb, CEE_LDNULL);
5653 mono_mb_emit_stloc (mb, 3);
5654 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5656 mono_mb_patch_branch (mb, pos);
5659 mono_mb_emit_ldloc (mb, 0);
5660 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5661 mono_mb_emit_stloc (mb, 0);
5663 /* Allocate and set dest */
5664 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5665 mono_mb_emit_byte (mb, CEE_CONV_I);
5666 mono_mb_emit_icall (mb, mono_marshal_alloc);
5667 mono_mb_emit_byte (mb, CEE_DUP);
5668 mono_mb_emit_stloc (mb, 1);
5669 mono_mb_emit_stloc (mb, 3);
5671 emit_struct_conv (mb, klass, FALSE);
5673 mono_mb_patch_branch (mb, pos2);
5677 g_assert_not_reached ();
5688 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5689 MonoMarshalSpec *spec,
5690 int conv_arg, MonoType **conv_arg_type,
5691 MarshalAction action)
5693 MonoMethodBuilder *mb = m->mb;
5694 static MonoMethod *get_object_for_native_variant = NULL;
5695 static MonoMethod *get_native_variant_for_object = NULL;
5697 if (!get_object_for_native_variant)
5698 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5699 g_assert (get_object_for_native_variant);
5701 if (!get_native_variant_for_object)
5702 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5703 g_assert (get_native_variant_for_object);
5706 case MARSHAL_ACTION_CONV_IN: {
5707 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5710 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5712 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5714 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5717 mono_mb_emit_ldarg (mb, argnum);
5719 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5720 mono_mb_emit_ldloc_addr (mb, conv_arg);
5721 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5725 case MARSHAL_ACTION_CONV_OUT: {
5726 static MonoMethod *variant_clear = NULL;
5729 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5730 g_assert (variant_clear);
5733 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5734 mono_mb_emit_ldarg (mb, argnum);
5735 mono_mb_emit_ldloc_addr (mb, conv_arg);
5736 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5737 mono_mb_emit_byte (mb, CEE_STIND_REF);
5740 mono_mb_emit_ldloc_addr (mb, conv_arg);
5741 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5745 case MARSHAL_ACTION_PUSH:
5747 mono_mb_emit_ldloc_addr (mb, conv_arg);
5749 mono_mb_emit_ldloc (mb, conv_arg);
5752 case MARSHAL_ACTION_CONV_RESULT: {
5753 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5754 mono_mb_emit_exception_marshal_directive (mb, msg);
5758 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5759 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5762 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5764 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5766 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5770 mono_mb_emit_ldarg (mb, argnum);
5772 mono_mb_emit_ldarg_addr (mb, argnum);
5773 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5774 mono_mb_emit_stloc (mb, conv_arg);
5778 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5779 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5780 mono_mb_emit_ldloc (mb, conv_arg);
5781 mono_mb_emit_ldarg (mb, argnum);
5782 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5787 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5788 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5789 mono_mb_emit_exception_marshal_directive (mb, msg);
5794 g_assert_not_reached ();
5800 #endif /* DISABLE_COM */
5801 #endif /* DISABLE_JIT */
5804 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5806 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5807 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5809 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5811 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5823 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5824 MonoMarshalSpec *spec,
5825 int conv_arg, MonoType **conv_arg_type,
5826 MarshalAction action)
5830 case MARSHAL_ACTION_CONV_IN:
5831 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5833 case MARSHAL_ACTION_MANAGED_CONV_IN:
5834 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5838 MonoMethodBuilder *mb = m->mb;
5839 MonoClass *klass = mono_class_from_mono_type (t);
5840 gboolean need_convert, need_free;
5841 MonoMarshalNative encoding;
5843 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5846 case MARSHAL_ACTION_CONV_IN:
5847 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5848 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5850 if (klass->element_class->blittable) {
5851 mono_mb_emit_ldarg (mb, argnum);
5853 mono_mb_emit_byte (mb, CEE_LDIND_I);
5854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5855 mono_mb_emit_stloc (mb, conv_arg);
5858 guint32 label1, label2, label3;
5859 int index_var, src_var, dest_ptr, esize;
5860 MonoMarshalConv conv;
5861 gboolean is_string = FALSE;
5863 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5865 eklass = klass->element_class;
5867 if (eklass == mono_defaults.string_class) {
5869 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5871 else if (eklass == mono_defaults.stringbuilder_class) {
5873 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5878 if (is_string && conv == -1) {
5879 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5880 mono_mb_emit_exception_marshal_directive (mb, msg);
5884 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5885 mono_mb_emit_ldarg (mb, argnum);
5887 mono_mb_emit_byte (mb, CEE_LDIND_I);
5888 mono_mb_emit_stloc (mb, src_var);
5891 mono_mb_emit_ldloc (mb, src_var);
5892 mono_mb_emit_stloc (mb, conv_arg);
5893 mono_mb_emit_ldloc (mb, src_var);
5894 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5897 esize = sizeof (gpointer);
5898 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5899 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5901 esize = mono_class_native_size (eklass, NULL);
5903 /* allocate space for the native struct and store the address */
5904 mono_mb_emit_icon (mb, esize);
5905 mono_mb_emit_ldloc (mb, src_var);
5906 mono_mb_emit_byte (mb, CEE_LDLEN);
5908 if (eklass == mono_defaults.string_class) {
5909 /* Make the array bigger for the terminating null */
5910 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5911 mono_mb_emit_byte (mb, CEE_ADD);
5913 mono_mb_emit_byte (mb, CEE_MUL);
5914 mono_mb_emit_byte (mb, CEE_PREFIX1);
5915 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5916 mono_mb_emit_stloc (mb, conv_arg);
5918 mono_mb_emit_ldloc (mb, conv_arg);
5919 mono_mb_emit_stloc (mb, dest_ptr);
5921 /* Emit marshalling loop */
5922 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5923 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5924 mono_mb_emit_stloc (mb, index_var);
5925 label2 = mono_mb_get_label (mb);
5926 mono_mb_emit_ldloc (mb, index_var);
5927 mono_mb_emit_ldloc (mb, src_var);
5928 mono_mb_emit_byte (mb, CEE_LDLEN);
5929 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5931 /* Emit marshalling code */
5934 mono_mb_emit_ldloc (mb, dest_ptr);
5935 mono_mb_emit_ldloc (mb, src_var);
5936 mono_mb_emit_ldloc (mb, index_var);
5937 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5938 mono_mb_emit_icall (mb, conv_to_icall (conv));
5939 mono_mb_emit_byte (mb, CEE_STIND_I);
5941 /* set the src_ptr */
5942 mono_mb_emit_ldloc (mb, src_var);
5943 mono_mb_emit_ldloc (mb, index_var);
5944 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5945 mono_mb_emit_stloc (mb, 0);
5948 mono_mb_emit_ldloc (mb, dest_ptr);
5949 mono_mb_emit_stloc (mb, 1);
5951 /* emit valuetype conversion code */
5952 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5955 mono_mb_emit_add_to_local (mb, index_var, 1);
5956 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5958 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5960 mono_mb_patch_branch (mb, label3);
5962 if (eklass == mono_defaults.string_class) {
5963 /* Null terminate */
5964 mono_mb_emit_ldloc (mb, dest_ptr);
5965 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5966 mono_mb_emit_byte (mb, CEE_STIND_REF);
5969 mono_mb_patch_branch (mb, label1);
5974 case MARSHAL_ACTION_CONV_OUT:
5975 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5976 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);
5977 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5980 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5981 int param_num = spec->data.array_data.param_num;
5982 MonoType *param_type;
5984 param_type = m->sig->params [param_num];
5986 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
5987 char *msg = g_strdup ("Not implemented.");
5988 mono_mb_emit_exception_marshal_directive (mb, msg);
5992 mono_mb_emit_ldarg (mb, argnum);
5994 /* Create the managed array */
5995 mono_mb_emit_ldarg (mb, param_num);
5996 if (m->sig->params [param_num]->byref)
5997 // FIXME: Support other types
5998 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5999 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6000 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6001 /* Store into argument */
6002 mono_mb_emit_byte (mb, CEE_STIND_I);
6005 if (need_convert || need_free) {
6006 /* FIXME: Optimize blittable case */
6008 guint32 label1, label2, label3;
6009 int index_var, src_ptr, loc, esize;
6011 eklass = klass->element_class;
6012 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6013 esize = sizeof (gpointer);
6014 else if (eklass == mono_defaults.char_class)
6015 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6017 esize = mono_class_native_size (eklass, NULL);
6018 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6019 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6022 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_byte (mb, CEE_LDIND_I);
6025 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6027 mono_mb_emit_ldloc (mb, conv_arg);
6028 mono_mb_emit_stloc (mb, src_ptr);
6030 /* Emit marshalling loop */
6031 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6032 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6033 mono_mb_emit_stloc (mb, index_var);
6034 label2 = mono_mb_get_label (mb);
6035 mono_mb_emit_ldloc (mb, index_var);
6036 mono_mb_emit_ldarg (mb, argnum);
6038 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6039 mono_mb_emit_byte (mb, CEE_LDLEN);
6040 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6042 /* Emit marshalling code */
6044 if (eklass == mono_defaults.stringbuilder_class) {
6045 gboolean need_free2;
6046 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6048 g_assert (conv != -1);
6051 mono_mb_emit_ldarg (mb, argnum);
6053 mono_mb_emit_byte (mb, CEE_LDIND_I);
6054 mono_mb_emit_ldloc (mb, index_var);
6055 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6058 mono_mb_emit_ldloc (mb, src_ptr);
6059 mono_mb_emit_byte (mb, CEE_LDIND_I);
6061 mono_mb_emit_icall (mb, conv_to_icall (conv));
6065 mono_mb_emit_ldloc (mb, src_ptr);
6066 mono_mb_emit_byte (mb, CEE_LDIND_I);
6068 mono_mb_emit_icall (mb, mono_marshal_free);
6071 else if (eklass == mono_defaults.string_class) {
6074 mono_mb_emit_ldloc (mb, src_ptr);
6075 mono_mb_emit_byte (mb, CEE_LDIND_I);
6077 mono_mb_emit_icall (mb, mono_marshal_free);
6082 /* set the src_ptr */
6083 mono_mb_emit_ldloc (mb, src_ptr);
6084 mono_mb_emit_stloc (mb, 0);
6087 mono_mb_emit_ldarg (mb, argnum);
6089 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6090 mono_mb_emit_ldloc (mb, index_var);
6091 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6092 mono_mb_emit_stloc (mb, 1);
6094 /* emit valuetype conversion code */
6095 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6099 mono_mb_emit_ldloc (mb, src_ptr);
6100 mono_mb_emit_stloc (mb, loc);
6101 mono_mb_emit_ldloc (mb, loc);
6103 emit_struct_free (mb, eklass, loc);
6107 mono_mb_emit_add_to_local (mb, index_var, 1);
6108 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6110 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6112 mono_mb_patch_branch (mb, label1);
6113 mono_mb_patch_branch (mb, label3);
6116 if (klass->element_class->blittable) {
6117 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6119 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6122 mono_mb_emit_ldloc (mb, conv_arg);
6123 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6128 case MARSHAL_ACTION_PUSH:
6130 mono_mb_emit_ldloc_addr (mb, conv_arg);
6132 mono_mb_emit_ldloc (mb, conv_arg);
6135 case MARSHAL_ACTION_CONV_RESULT:
6136 /* fixme: we need conversions here */
6137 mono_mb_emit_stloc (mb, 3);
6140 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6142 guint32 label1, label2, label3;
6143 int index_var, src_ptr, esize, param_num, num_elem;
6144 MonoMarshalConv conv;
6145 gboolean is_string = FALSE;
6147 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6148 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6151 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6152 mono_mb_emit_exception_marshal_directive (mb, msg);
6156 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6157 mono_mb_emit_exception_marshal_directive (mb, msg);
6160 if (spec->native != MONO_NATIVE_LPARRAY) {
6161 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6162 mono_mb_emit_exception_marshal_directive (mb, msg);
6166 /* FIXME: t is from the method which is wrapped, not the delegate type */
6167 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6169 param_num = spec->data.array_data.param_num;
6170 num_elem = spec->data.array_data.num_elem;
6171 if (spec->data.array_data.elem_mult == 0)
6172 /* param_num is not specified */
6175 if (param_num == -1) {
6176 if (num_elem <= 0) {
6177 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6178 mono_mb_emit_exception_marshal_directive (mb, msg);
6183 /* FIXME: Optimize blittable case */
6185 eklass = klass->element_class;
6186 if (eklass == mono_defaults.string_class) {
6188 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6190 else if (eklass == mono_defaults.stringbuilder_class) {
6192 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6197 mono_marshal_load_type_info (eklass);
6200 esize = sizeof (gpointer);
6202 esize = mono_class_native_size (eklass, NULL);
6203 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6205 mono_mb_emit_byte (mb, CEE_LDNULL);
6206 mono_mb_emit_stloc (mb, conv_arg);
6208 /* Check param index */
6209 if (param_num != -1) {
6210 if (param_num >= m->sig->param_count) {
6211 char *msg = g_strdup ("Array size control parameter index is out of range.");
6212 mono_mb_emit_exception_marshal_directive (mb, msg);
6215 switch (m->sig->params [param_num]->type) {
6228 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6229 mono_mb_emit_exception_marshal_directive (mb, msg);
6236 mono_mb_emit_ldarg (mb, argnum);
6237 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6239 mono_mb_emit_ldarg (mb, argnum);
6240 mono_mb_emit_stloc (mb, src_ptr);
6242 /* Create managed array */
6244 * The LPArray marshalling spec says that sometimes param_num starts
6245 * from 1, sometimes it starts from 0. But MS seems to allways start
6249 if (param_num == -1) {
6250 mono_mb_emit_icon (mb, num_elem);
6252 mono_mb_emit_ldarg (mb, param_num);
6254 mono_mb_emit_icon (mb, num_elem);
6255 mono_mb_emit_byte (mb, CEE_ADD);
6257 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6260 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6261 mono_mb_emit_stloc (mb, conv_arg);
6263 if (eklass->blittable) {
6264 mono_mb_emit_ldloc (mb, conv_arg);
6265 mono_mb_emit_byte (mb, CEE_CONV_I);
6266 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6267 mono_mb_emit_byte (mb, CEE_ADD);
6268 mono_mb_emit_ldarg (mb, argnum);
6269 mono_mb_emit_ldloc (mb, conv_arg);
6270 mono_mb_emit_byte (mb, CEE_LDLEN);
6271 mono_mb_emit_icon (mb, esize);
6272 mono_mb_emit_byte (mb, CEE_MUL);
6273 mono_mb_emit_byte (mb, CEE_PREFIX1);
6274 mono_mb_emit_byte (mb, CEE_CPBLK);
6278 /* Emit marshalling loop */
6279 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6280 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6281 mono_mb_emit_stloc (mb, index_var);
6282 label2 = mono_mb_get_label (mb);
6283 mono_mb_emit_ldloc (mb, index_var);
6284 mono_mb_emit_ldloc (mb, conv_arg);
6285 mono_mb_emit_byte (mb, CEE_LDLEN);
6286 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6288 /* Emit marshalling code */
6290 g_assert (conv != -1);
6292 mono_mb_emit_ldloc (mb, conv_arg);
6293 mono_mb_emit_ldloc (mb, index_var);
6295 mono_mb_emit_ldloc (mb, src_ptr);
6296 mono_mb_emit_byte (mb, CEE_LDIND_I);
6298 mono_mb_emit_icall (mb, conv_to_icall (conv));
6299 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6302 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6303 mono_mb_emit_exception_marshal_directive (mb, msg);
6307 mono_mb_emit_add_to_local (mb, index_var, 1);
6308 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6310 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6312 mono_mb_patch_branch (mb, label1);
6313 mono_mb_patch_branch (mb, label3);
6317 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6319 guint32 label1, label2, label3;
6320 int index_var, dest_ptr, esize, param_num, num_elem;
6321 MonoMarshalConv conv;
6322 gboolean is_string = FALSE;
6325 /* Already handled in CONV_IN */
6328 /* These are already checked in CONV_IN */
6329 g_assert (!t->byref);
6330 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6331 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6333 param_num = spec->data.array_data.param_num;
6334 num_elem = spec->data.array_data.num_elem;
6336 if (spec->data.array_data.elem_mult == 0)
6337 /* param_num is not specified */
6340 if (param_num == -1) {
6341 if (num_elem <= 0) {
6342 g_assert_not_reached ();
6346 /* FIXME: Optimize blittable case */
6348 eklass = klass->element_class;
6349 if (eklass == mono_defaults.string_class) {
6351 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6353 else if (eklass == mono_defaults.stringbuilder_class) {
6355 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6360 mono_marshal_load_type_info (eklass);
6363 esize = sizeof (gpointer);
6365 esize = mono_class_native_size (eklass, NULL);
6367 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6370 mono_mb_emit_ldloc (mb, conv_arg);
6371 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6373 mono_mb_emit_ldarg (mb, argnum);
6374 mono_mb_emit_stloc (mb, dest_ptr);
6376 if (eklass->blittable) {
6378 mono_mb_emit_ldarg (mb, argnum);
6380 mono_mb_emit_ldloc (mb, conv_arg);
6381 mono_mb_emit_byte (mb, CEE_CONV_I);
6382 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6383 mono_mb_emit_byte (mb, CEE_ADD);
6385 mono_mb_emit_ldloc (mb, conv_arg);
6386 mono_mb_emit_byte (mb, CEE_LDLEN);
6387 mono_mb_emit_icon (mb, esize);
6388 mono_mb_emit_byte (mb, CEE_MUL);
6389 mono_mb_emit_byte (mb, CEE_PREFIX1);
6390 mono_mb_emit_byte (mb, CEE_CPBLK);
6394 /* Emit marshalling loop */
6395 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6396 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6397 mono_mb_emit_stloc (mb, index_var);
6398 label2 = mono_mb_get_label (mb);
6399 mono_mb_emit_ldloc (mb, index_var);
6400 mono_mb_emit_ldloc (mb, conv_arg);
6401 mono_mb_emit_byte (mb, CEE_LDLEN);
6402 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6404 /* Emit marshalling code */
6406 g_assert (conv != -1);
6409 mono_mb_emit_ldloc (mb, dest_ptr);
6412 mono_mb_emit_ldloc (mb, conv_arg);
6413 mono_mb_emit_ldloc (mb, index_var);
6415 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6417 mono_mb_emit_icall (mb, conv_to_icall (conv));
6418 mono_mb_emit_byte (mb, CEE_STIND_I);
6421 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6422 mono_mb_emit_exception_marshal_directive (mb, msg);
6426 mono_mb_emit_add_to_local (mb, index_var, 1);
6427 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6429 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6431 mono_mb_patch_branch (mb, label1);
6432 mono_mb_patch_branch (mb, label3);
6436 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6438 guint32 label1, label2, label3;
6439 int index_var, src, dest, esize;
6440 MonoMarshalConv conv = -1;
6441 gboolean is_string = FALSE;
6443 g_assert (!t->byref);
6445 eklass = klass->element_class;
6447 mono_marshal_load_type_info (eklass);
6449 if (eklass == mono_defaults.string_class) {
6451 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6454 g_assert_not_reached ();
6458 esize = sizeof (gpointer);
6459 else if (eklass == mono_defaults.char_class)
6460 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6462 esize = mono_class_native_size (eklass, NULL);
6464 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6465 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6467 mono_mb_emit_stloc (mb, src);
6468 mono_mb_emit_ldloc (mb, src);
6469 mono_mb_emit_stloc (mb, 3);
6471 /* Check for null */
6472 mono_mb_emit_ldloc (mb, src);
6473 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6475 /* Allocate native array */
6476 mono_mb_emit_icon (mb, esize);
6477 mono_mb_emit_ldloc (mb, src);
6478 mono_mb_emit_byte (mb, CEE_LDLEN);
6480 if (eklass == mono_defaults.string_class) {
6481 /* Make the array bigger for the terminating null */
6482 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6483 mono_mb_emit_byte (mb, CEE_ADD);
6485 mono_mb_emit_byte (mb, CEE_MUL);
6486 mono_mb_emit_icall (mb, mono_marshal_alloc);
6487 mono_mb_emit_stloc (mb, dest);
6488 mono_mb_emit_ldloc (mb, dest);
6489 mono_mb_emit_stloc (mb, 3);
6491 /* Emit marshalling loop */
6492 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6493 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6494 mono_mb_emit_stloc (mb, index_var);
6495 label2 = mono_mb_get_label (mb);
6496 mono_mb_emit_ldloc (mb, index_var);
6497 mono_mb_emit_ldloc (mb, src);
6498 mono_mb_emit_byte (mb, CEE_LDLEN);
6499 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6501 /* Emit marshalling code */
6503 g_assert (conv != -1);
6506 mono_mb_emit_ldloc (mb, dest);
6509 mono_mb_emit_ldloc (mb, src);
6510 mono_mb_emit_ldloc (mb, index_var);
6512 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6514 mono_mb_emit_icall (mb, conv_to_icall (conv));
6515 mono_mb_emit_byte (mb, CEE_STIND_I);
6518 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6519 mono_mb_emit_exception_marshal_directive (mb, msg);
6523 mono_mb_emit_add_to_local (mb, index_var, 1);
6524 mono_mb_emit_add_to_local (mb, dest, esize);
6526 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6528 mono_mb_patch_branch (mb, label3);
6529 mono_mb_patch_branch (mb, label1);
6533 g_assert_not_reached ();
6540 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6543 return &mono_defaults.int32_class->byval_arg;
6545 switch (spec->native) {
6546 case MONO_NATIVE_I1:
6547 case MONO_NATIVE_U1:
6548 return &mono_defaults.byte_class->byval_arg;
6549 case MONO_NATIVE_VARIANTBOOL:
6550 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6551 return &mono_defaults.int16_class->byval_arg;
6552 case MONO_NATIVE_BOOLEAN:
6553 return &mono_defaults.int32_class->byval_arg;
6555 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6556 return &mono_defaults.int32_class->byval_arg;
6562 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6564 MonoClass* conv_arg_class = mono_defaults.int32_class;
6566 switch (spec->native) {
6567 case MONO_NATIVE_I1:
6568 case MONO_NATIVE_U1:
6569 conv_arg_class = mono_defaults.byte_class;
6570 if (ldop) *ldop = CEE_LDIND_I1;
6572 case MONO_NATIVE_VARIANTBOOL:
6573 conv_arg_class = mono_defaults.int16_class;
6574 if (ldop) *ldop = CEE_LDIND_I2;
6576 case MONO_NATIVE_BOOLEAN:
6579 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6582 return conv_arg_class;
6586 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6587 MonoMarshalSpec *spec,
6588 int conv_arg, MonoType **conv_arg_type,
6589 MarshalAction action)
6593 case MARSHAL_ACTION_CONV_IN:
6595 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6597 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6600 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6601 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6603 *conv_arg_type = &conv_arg_class->this_arg;
6605 *conv_arg_type = &conv_arg_class->byval_arg;
6611 MonoMethodBuilder *mb = m->mb;
6614 case MARSHAL_ACTION_CONV_IN: {
6615 MonoType *local_type;
6617 guint8 ldc_op = CEE_LDC_I4_1;
6619 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6621 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6623 *conv_arg_type = local_type;
6624 conv_arg = mono_mb_add_local (mb, local_type);
6626 mono_mb_emit_ldarg (mb, argnum);
6628 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6629 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6630 mono_mb_emit_byte (mb, ldc_op);
6631 mono_mb_emit_stloc (mb, conv_arg);
6632 mono_mb_patch_branch (mb, label_false);
6637 case MARSHAL_ACTION_CONV_OUT:
6639 int label_false, label_end;
6643 mono_mb_emit_ldarg (mb, argnum);
6644 mono_mb_emit_ldloc (mb, conv_arg);
6646 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6647 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6649 label_end = mono_mb_emit_branch (mb, CEE_BR);
6650 mono_mb_patch_branch (mb, label_false);
6651 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6652 mono_mb_patch_branch (mb, label_end);
6654 mono_mb_emit_byte (mb, CEE_STIND_I1);
6658 case MARSHAL_ACTION_PUSH:
6660 mono_mb_emit_ldloc_addr (mb, conv_arg);
6662 mono_mb_emit_ldloc (mb, conv_arg);
6664 mono_mb_emit_ldarg (mb, argnum);
6667 case MARSHAL_ACTION_CONV_RESULT:
6668 /* maybe we need to make sure that it fits within 8 bits */
6669 mono_mb_emit_stloc (mb, 3);
6672 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6673 MonoClass* conv_arg_class = mono_defaults.int32_class;
6674 guint8 ldop = CEE_LDIND_I4;
6675 int label_null, label_false;
6677 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6678 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6681 *conv_arg_type = &conv_arg_class->this_arg;
6683 *conv_arg_type = &conv_arg_class->byval_arg;
6686 mono_mb_emit_ldarg (mb, argnum);
6690 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6691 mono_mb_emit_ldarg (mb, argnum);
6692 mono_mb_emit_byte (mb, ldop);
6696 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6697 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6698 mono_mb_emit_stloc (mb, conv_arg);
6699 mono_mb_patch_branch (mb, label_false);
6702 mono_mb_patch_branch (mb, label_null);
6706 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6707 guint8 stop = CEE_STIND_I4;
6708 guint8 ldc_op = CEE_LDC_I4_1;
6709 int label_null,label_false, label_end;;
6714 switch (spec->native) {
6715 case MONO_NATIVE_I1:
6716 case MONO_NATIVE_U1:
6717 stop = CEE_STIND_I1;
6719 case MONO_NATIVE_VARIANTBOOL:
6720 stop = CEE_STIND_I2;
6721 ldc_op = CEE_LDC_I4_M1;
6729 mono_mb_emit_ldarg (mb, argnum);
6730 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6732 mono_mb_emit_ldarg (mb, argnum);
6733 mono_mb_emit_ldloc (mb, conv_arg);
6735 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6736 mono_mb_emit_byte (mb, ldc_op);
6737 label_end = mono_mb_emit_branch (mb, CEE_BR);
6739 mono_mb_patch_branch (mb, label_false);
6740 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6741 mono_mb_patch_branch (mb, label_end);
6743 mono_mb_emit_byte (mb, stop);
6744 mono_mb_patch_branch (mb, label_null);
6749 g_assert_not_reached ();
6756 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6757 MonoMarshalSpec *spec, int conv_arg,
6758 MonoType **conv_arg_type, MarshalAction action)
6761 MonoMethodBuilder *mb = m->mb;
6764 case MARSHAL_ACTION_CONV_IN:
6765 /* MS seems to allow this in some cases, ie. bxc #158 */
6767 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6768 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6769 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6774 case MARSHAL_ACTION_PUSH:
6775 mono_mb_emit_ldarg (mb, argnum);
6778 case MARSHAL_ACTION_CONV_RESULT:
6779 /* no conversions necessary */
6780 mono_mb_emit_stloc (mb, 3);
6791 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6792 MonoMarshalSpec *spec, int conv_arg,
6793 MonoType **conv_arg_type, MarshalAction action)
6796 MonoMethodBuilder *mb = m->mb;
6799 case MARSHAL_ACTION_PUSH:
6800 /* fixme: dont know how to marshal that. We cant simply
6801 * convert it to a one byte UTF8 character, because an
6802 * unicode character may need more that one byte in UTF8 */
6803 mono_mb_emit_ldarg (mb, argnum);
6806 case MARSHAL_ACTION_CONV_RESULT:
6807 /* fixme: we need conversions here */
6808 mono_mb_emit_stloc (mb, 3);
6819 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6820 MonoMarshalSpec *spec, int conv_arg,
6821 MonoType **conv_arg_type, MarshalAction action)
6824 MonoMethodBuilder *mb = m->mb;
6827 case MARSHAL_ACTION_PUSH:
6828 mono_mb_emit_ldarg (mb, argnum);
6831 case MARSHAL_ACTION_CONV_RESULT:
6832 /* no conversions necessary */
6833 mono_mb_emit_stloc (mb, 3);
6844 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6845 MonoMarshalSpec *spec, int conv_arg,
6846 MonoType **conv_arg_type, MarshalAction action)
6848 /* Ensure that we have marshalling info for this param */
6849 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6851 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6852 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6854 if (spec && spec->native == MONO_NATIVE_ASANY)
6855 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6858 case MONO_TYPE_VALUETYPE:
6859 if (t->data.klass == mono_defaults.handleref_class)
6860 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6862 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6863 case MONO_TYPE_STRING:
6864 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6865 case MONO_TYPE_CLASS:
6866 case MONO_TYPE_OBJECT:
6868 if (spec && spec->native == MONO_NATIVE_STRUCT)
6869 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6871 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6872 spec->native == MONO_NATIVE_IDISPATCH ||
6873 spec->native == MONO_NATIVE_INTERFACE))
6874 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6875 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6876 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6877 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6878 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6881 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6882 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6883 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6885 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6886 case MONO_TYPE_ARRAY:
6887 case MONO_TYPE_SZARRAY:
6888 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6889 case MONO_TYPE_BOOLEAN:
6890 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6892 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6893 case MONO_TYPE_CHAR:
6894 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6907 case MONO_TYPE_FNPTR:
6908 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6909 case MONO_TYPE_GENERICINST:
6910 if (mono_type_generic_inst_is_valuetype (t))
6911 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6913 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6921 * mono_marshal_emit_native_wrapper:
6922 * @image: the image to use for looking up custom marshallers
6923 * @sig: The signature of the native function
6924 * @piinfo: Marshalling information
6925 * @mspecs: Marshalling information
6926 * @aot: whenever the created method will be compiled by the AOT compiler
6927 * @method: if non-NULL, the pinvoke method to call
6928 * @check_exceptions: Whenever to check for pending exceptions after the native call
6929 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6931 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6934 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)
6936 EmitMarshalContext m;
6937 MonoMethodSignature *csig;
6939 int i, argnum, *tmp_locals;
6940 int type, param_shift = 0;
6941 static MonoMethodSignature *get_last_error_sig = NULL;
6943 memset (&m, 0, sizeof (m));
6948 /* we copy the signature, so that we can set pinvoke to 0 */
6950 /* The function address is passed as the first argument */
6951 g_assert (!sig->hasthis);
6954 csig = signature_dup (mb->method->klass->image, sig);
6962 /* we allocate local for use with emit_struct_conv() */
6963 /* allocate local 0 (pointer) src_ptr */
6964 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6965 /* allocate local 1 (pointer) dst_ptr */
6966 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6967 /* allocate local 2 (boolean) delete_old */
6968 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6970 /* delete_old = FALSE */
6971 mono_mb_emit_icon (mb, 0);
6972 mono_mb_emit_stloc (mb, 2);
6974 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6975 /* allocate local 3 to store the return value */
6976 mono_mb_add_local (mb, sig->ret);
6979 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6980 /* Return type custom marshaling */
6982 * Since we can't determine the return type of the unmanaged function,
6983 * we assume it returns a pointer, and pass that pointer to
6984 * MarshalNativeToManaged.
6986 csig->ret = &mono_defaults.int_class->byval_arg;
6989 /* we first do all conversions */
6990 tmp_locals = alloca (sizeof (int) * sig->param_count);
6991 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6993 for (i = 0; i < sig->param_count; i ++) {
6994 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6997 /* push all arguments */
7000 mono_mb_emit_byte (mb, CEE_LDARG_0);
7002 for (i = 0; i < sig->param_count; i++) {
7003 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7006 /* call the native method */
7008 mono_mb_emit_byte (mb, CEE_LDARG_0);
7009 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7010 mono_mb_emit_byte (mb, CEE_LDIND_I);
7011 mono_mb_emit_calli (mb, csig);
7012 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7014 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7016 g_assert_not_reached ();
7021 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7022 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7023 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7024 mono_mb_emit_calli (mb, csig);
7026 mono_mb_emit_native_call (mb, csig, func);
7030 /* Set LastError if needed */
7031 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7032 if (!get_last_error_sig) {
7033 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7034 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7035 get_last_error_sig->pinvoke = 1;
7040 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7041 * clobber its value.
7043 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7044 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7046 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7050 /* convert the result */
7051 if (!sig->ret->byref) {
7052 MonoMarshalSpec *spec = mspecs [0];
7053 type = sig->ret->type;
7055 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7056 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7061 case MONO_TYPE_VOID:
7063 case MONO_TYPE_VALUETYPE:
7064 klass = sig->ret->data.klass;
7065 if (klass->enumtype) {
7066 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7069 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7083 case MONO_TYPE_FNPTR:
7084 case MONO_TYPE_STRING:
7085 case MONO_TYPE_CLASS:
7086 case MONO_TYPE_OBJECT:
7087 case MONO_TYPE_BOOLEAN:
7088 case MONO_TYPE_ARRAY:
7089 case MONO_TYPE_SZARRAY:
7090 case MONO_TYPE_CHAR:
7092 case MONO_TYPE_GENERICINST:
7093 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7095 case MONO_TYPE_TYPEDBYREF:
7097 g_warning ("return type 0x%02x unknown", sig->ret->type);
7098 g_assert_not_reached ();
7102 mono_mb_emit_stloc (mb, 3);
7106 * Need to call this after converting the result since MONO_VTADDR needs
7107 * to be adjacent to the call instruction.
7109 if (check_exceptions)
7110 emit_thread_interrupt_checkpoint (mb);
7112 /* we need to convert byref arguments back and free string arrays */
7113 for (i = 0; i < sig->param_count; i++) {
7114 MonoType *t = sig->params [i];
7115 MonoMarshalSpec *spec = mspecs [i + 1];
7117 argnum = i + param_shift;
7119 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7120 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7125 case MONO_TYPE_STRING:
7126 case MONO_TYPE_VALUETYPE:
7127 case MONO_TYPE_CLASS:
7128 case MONO_TYPE_OBJECT:
7129 case MONO_TYPE_SZARRAY:
7130 case MONO_TYPE_BOOLEAN:
7131 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7138 if (!MONO_TYPE_IS_VOID(sig->ret))
7139 mono_mb_emit_ldloc (mb, 3);
7141 mono_mb_emit_byte (mb, CEE_RET);
7143 #endif /* DISABLE_JIT */
7146 G_GNUC_UNUSED static void
7147 code_for (MonoMethod *method) {
7148 MonoMethodHeader *header = mono_method_get_header (method);
7149 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));
7153 * mono_marshal_get_native_wrapper:
7154 * @method: The MonoMethod to wrap.
7155 * @check_exceptions: Whenever to check for pending exceptions
7157 * generates IL code for the pinvoke wrapper (the generated method
7158 * calls the unmanaged code in piinfo->addr)
7159 * The wrapper info for the wrapper is a WrapperInfo structure.
7162 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7164 MonoMethodSignature *sig, *csig;
7165 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7166 MonoMethodBuilder *mb;
7167 MonoMarshalSpec **mspecs;
7170 gboolean pinvoke = FALSE;
7173 const char *exc_class = "MissingMethodException";
7174 const char *exc_arg = NULL;
7177 g_assert (method != NULL);
7178 g_assert (mono_method_signature (method)->pinvoke);
7181 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7183 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7184 if ((res = mono_marshal_find_in_cache (cache, method)))
7187 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7188 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7192 return mono_cominterop_get_native_wrapper (method);
7194 g_assert_not_reached ();
7198 sig = mono_method_signature (method);
7200 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7201 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7204 if (!piinfo->addr) {
7206 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7207 exc_arg = "Method contains unsupported native code";
7209 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7211 piinfo->addr = mono_lookup_internal_call (method);
7215 /* hack - redirect certain string constructors to CreateString */
7216 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7217 g_assert (!pinvoke);
7218 g_assert (method->string_ctor);
7219 g_assert (sig->hasthis);
7221 /* CreateString returns a value */
7222 csig = signature_dup (method->klass->image, sig);
7223 csig->ret = &mono_defaults.string_class->byval_arg;
7227 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7228 if (!strcmp ("CreateString", res->name) &&
7229 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7232 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7233 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7235 /* create a wrapper to preserve .ctor in stack trace */
7236 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7239 mono_mb_emit_byte (mb, CEE_LDARG_0);
7240 for (i = 1; i <= csig->param_count; i++)
7241 mono_mb_emit_ldarg (mb, i);
7242 mono_mb_emit_managed_call (mb, res, NULL);
7243 mono_mb_emit_byte (mb, CEE_RET);
7246 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7247 info->d.string_ctor.method = method;
7249 /* use native_wrapper_cache because internal calls are looked up there */
7250 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7251 csig->param_count + 1, info, NULL);
7258 /* exception will be thrown */
7259 piinfo->addr = NULL;
7260 g_warning ("cannot find CreateString for .ctor");
7263 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7265 mb->method->save_lmf = 1;
7268 * In AOT mode and embedding scenarios, it is possible that the icall is not
7269 * registered in the runtime doing the AOT compilation.
7271 if (!piinfo->addr && !aot) {
7273 mono_mb_emit_exception (mb, exc_class, exc_arg);
7275 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7276 info->d.managed_to_native.method = method;
7278 csig = signature_dup (method->klass->image, sig);
7280 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7281 csig->param_count + 16, info, NULL);
7287 /* internal calls: we simply push all arguments and call the method (no conversions) */
7288 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7290 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7292 csig = signature_dup (method->klass->image, sig);
7294 /* hack - string constructors returns a value */
7295 if (method->string_ctor)
7296 csig->ret = &mono_defaults.string_class->byval_arg;
7303 * Add a null check since public icalls can be called with 'call' which
7304 * does no such check.
7306 mono_mb_emit_byte (mb, CEE_LDARG_0);
7307 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7308 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7309 mono_mb_patch_branch (mb, pos);
7311 mono_mb_emit_byte (mb, CEE_LDARG_0);
7314 for (i = 0; i < sig->param_count; i++)
7315 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7318 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7319 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7320 mono_mb_emit_calli (mb, csig);
7322 g_assert (piinfo->addr);
7323 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7325 if (check_exceptions)
7326 emit_thread_interrupt_checkpoint (mb);
7327 mono_mb_emit_byte (mb, CEE_RET);
7329 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7330 info->d.managed_to_native.method = method;
7332 csig = signature_dup (method->klass->image, csig);
7334 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7343 g_assert (piinfo->addr);
7346 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7347 mono_method_get_marshal_info (method, mspecs);
7349 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7351 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7352 info->d.managed_to_native.method = method;
7354 csig = signature_dup (method->klass->image, sig);
7356 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7361 for (i = sig->param_count; i >= 0; i--)
7363 mono_metadata_free_marshal_spec (mspecs [i]);
7367 /* code_for (res); */
7373 * mono_marshal_get_native_func_wrapper:
7374 * @image: The image to use for memory allocation and for looking up custom marshallers.
7375 * @sig: The signature of the function
7376 * @func: The native function to wrap
7378 * Returns a wrapper method around native functions, similar to the pinvoke
7382 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7383 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7385 MonoMethodSignature *csig;
7387 SignaturePointerPair key, *new_key;
7388 MonoMethodBuilder *mb;
7397 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7398 if ((res = mono_marshal_find_in_cache (cache, &key)))
7401 name = g_strdup_printf ("wrapper_native_%p", func);
7402 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7403 mb->method->save_lmf = 1;
7406 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7409 csig = signature_dup (image, sig);
7412 new_key = g_new (SignaturePointerPair,1);
7413 new_key->sig = csig;
7414 new_key->pointer = func;
7416 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7422 mono_marshal_set_wrapper_info (res, NULL);
7428 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7432 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7434 MonoMethodSignature *sig, *csig;
7435 MonoMethodBuilder *mb;
7440 MonoMethodPInvoke mpiinfo;
7441 MonoMethodPInvoke *piinfo = &mpiinfo;
7442 MonoMarshalSpec **mspecs;
7443 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7444 MonoImage *image = invoke->klass->image;
7447 // FIXME: include UnmanagedFunctionPointerAttribute info
7450 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7452 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7453 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7456 memset (&mpiinfo, 0, sizeof (mpiinfo));
7457 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7459 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7460 mono_method_get_marshal_info (invoke, mspecs);
7461 /* Freed below so don't alloc from mempool */
7462 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7465 name = g_strdup_printf ("wrapper_aot_native");
7466 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7467 mb->method->save_lmf = 1;
7470 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7473 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7474 info->d.managed_to_native.method = invoke;
7476 g_assert (!sig->hasthis);
7477 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7479 res = mono_mb_create_and_cache_full (cache, invoke,
7480 mb, csig, csig->param_count + 16,
7484 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7486 mono_metadata_free_marshal_spec (mspecs [i]);
7494 * mono_marshal_emit_managed_wrapper:
7496 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7497 * the delegate which wraps the managed method to be called. For closed delegates,
7498 * it could have fewer parameters than the method it wraps.
7499 * THIS_LOC is the memory location where the target of the delegate is stored.
7502 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7505 MonoMethodSignature *sig, *csig;
7511 /* we first do all conversions */
7512 for (i = 0; i < sig->param_count; i ++) {
7513 MonoType *t = sig->params [i];
7516 case MONO_TYPE_OBJECT:
7517 case MONO_TYPE_CLASS:
7518 case MONO_TYPE_VALUETYPE:
7519 case MONO_TYPE_ARRAY:
7520 case MONO_TYPE_SZARRAY:
7521 case MONO_TYPE_STRING:
7522 case MONO_TYPE_BOOLEAN:
7523 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7527 if (!sig->ret->byref) {
7528 switch (sig->ret->type) {
7529 case MONO_TYPE_STRING:
7530 csig->ret = &mono_defaults.int_class->byval_arg;
7537 MonoMethodSignature *sig, *csig;
7539 gboolean closed = FALSE;
7544 /* allocate local 0 (pointer) src_ptr */
7545 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7546 /* allocate local 1 (pointer) dst_ptr */
7547 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7548 /* allocate local 2 (boolean) delete_old */
7549 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7551 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7552 /* Closed delegate */
7553 g_assert (sig->param_count == invoke_sig->param_count + 1);
7555 /* Use a new signature without the first argument */
7556 sig = mono_metadata_signature_dup (sig);
7557 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7558 sig->param_count --;
7561 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7562 /* allocate local 3 to store the return value */
7563 mono_mb_add_local (mb, sig->ret);
7566 mono_mb_emit_icon (mb, 0);
7567 mono_mb_emit_stloc (mb, 2);
7570 * Might need to attach the thread to the JIT or change the
7571 * domain for the callback.
7573 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7574 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7576 /* we first do all conversions */
7577 tmp_locals = alloca (sizeof (int) * sig->param_count);
7578 for (i = 0; i < sig->param_count; i ++) {
7579 MonoType *t = sig->params [i];
7582 case MONO_TYPE_OBJECT:
7583 case MONO_TYPE_CLASS:
7584 case MONO_TYPE_VALUETYPE:
7585 case MONO_TYPE_ARRAY:
7586 case MONO_TYPE_SZARRAY:
7587 case MONO_TYPE_STRING:
7588 case MONO_TYPE_BOOLEAN:
7589 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7598 emit_thread_interrupt_checkpoint (mb);
7601 if (target_handle) {
7602 mono_mb_emit_icon (mb, (gint32)target_handle);
7603 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7606 g_assert_not_reached ();
7608 } else if (closed) {
7609 mono_mb_emit_icon (mb, (gint32)target_handle);
7610 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7613 for (i = 0; i < sig->param_count; i++) {
7614 MonoType *t = sig->params [i];
7616 if (tmp_locals [i]) {
7618 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7620 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7623 mono_mb_emit_ldarg (mb, i);
7626 mono_mb_emit_managed_call (mb, method, NULL);
7628 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7629 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7630 } else if (!sig->ret->byref) {
7631 switch (sig->ret->type) {
7632 case MONO_TYPE_VOID:
7634 case MONO_TYPE_BOOLEAN:
7637 case MONO_TYPE_CHAR:
7649 case MONO_TYPE_OBJECT:
7650 mono_mb_emit_stloc (mb, 3);
7652 case MONO_TYPE_STRING:
7653 csig->ret = &mono_defaults.int_class->byval_arg;
7654 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7656 case MONO_TYPE_VALUETYPE:
7657 case MONO_TYPE_CLASS:
7658 case MONO_TYPE_SZARRAY:
7659 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7662 g_warning ("return type 0x%02x unknown", sig->ret->type);
7663 g_assert_not_reached ();
7666 mono_mb_emit_stloc (mb, 3);
7669 /* Convert byref arguments back */
7670 for (i = 0; i < sig->param_count; i ++) {
7671 MonoType *t = sig->params [i];
7672 MonoMarshalSpec *spec = mspecs [i + 1];
7674 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7675 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7677 else if (t->byref) {
7679 case MONO_TYPE_CLASS:
7680 case MONO_TYPE_VALUETYPE:
7681 case MONO_TYPE_OBJECT:
7682 case MONO_TYPE_STRING:
7683 case MONO_TYPE_BOOLEAN:
7684 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7690 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7691 /* The [Out] information is encoded in the delegate signature */
7693 case MONO_TYPE_SZARRAY:
7694 case MONO_TYPE_CLASS:
7695 case MONO_TYPE_VALUETYPE:
7696 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7699 g_assert_not_reached ();
7704 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7705 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7707 if (m->retobj_var) {
7708 mono_mb_emit_ldloc (mb, m->retobj_var);
7709 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7710 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7713 if (!MONO_TYPE_IS_VOID(sig->ret))
7714 mono_mb_emit_ldloc (mb, 3);
7715 mono_mb_emit_byte (mb, CEE_RET);
7724 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7726 MonoMethodSignature *sig;
7731 * Under windows, delegates passed to native code must use the STDCALL
7732 * calling convention.
7734 csig->call_convention = MONO_CALL_STDCALL;
7737 sig = mono_method_signature (method);
7739 /* Change default calling convention if needed */
7740 /* Why is this a modopt ? */
7741 if (sig->ret && sig->ret->num_mods) {
7742 for (i = 0; i < sig->ret->num_mods; ++i) {
7744 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7745 g_assert (mono_error_ok (&error));
7746 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7747 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7748 csig->call_convention = MONO_CALL_C;
7749 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7750 csig->call_convention = MONO_CALL_STDCALL;
7751 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7752 csig->call_convention = MONO_CALL_FASTCALL;
7753 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7754 csig->call_convention = MONO_CALL_THISCALL;
7761 * generates IL code to call managed methods from unmanaged code
7762 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7765 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7767 static MonoClass *UnmanagedFunctionPointerAttribute;
7768 MonoMethodSignature *sig, *csig, *invoke_sig;
7769 MonoMethodBuilder *mb;
7770 MonoMethod *res, *invoke;
7771 MonoMarshalSpec **mspecs;
7772 MonoMethodPInvoke piinfo;
7775 EmitMarshalContext m;
7777 g_assert (method != NULL);
7778 g_assert (!mono_method_signature (method)->pinvoke);
7781 * FIXME: Should cache the method+delegate type pair, since the same method
7782 * could be called with different delegates, thus different marshalling
7785 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7786 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7789 invoke = mono_get_delegate_invoke (delegate_klass);
7790 invoke_sig = mono_method_signature (invoke);
7792 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7793 mono_method_get_marshal_info (invoke, mspecs);
7795 sig = mono_method_signature (method);
7797 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7799 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7800 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7802 /* we copy the signature, so that we can modify it */
7804 /* Need to free this later */
7805 csig = mono_metadata_signature_dup (invoke_sig);
7807 csig = signature_dup (method->klass->image, invoke_sig);
7811 memset (&m, 0, sizeof (m));
7817 m.image = method->klass->image;
7819 mono_marshal_set_callconv_from_modopt (invoke, csig);
7821 /* Handle the UnmanagedFunctionPointerAttribute */
7822 if (!UnmanagedFunctionPointerAttribute)
7823 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7825 /* The attribute is only available in Net 2.0 */
7826 if (UnmanagedFunctionPointerAttribute) {
7827 MonoCustomAttrInfo *cinfo;
7828 MonoCustomAttrEntry *attr;
7831 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7832 * contents of the attribute without constructing it, as that might not be
7833 * possible when running in cross-compiling mode.
7835 cinfo = mono_custom_attrs_from_class (delegate_klass);
7838 for (i = 0; i < cinfo->num_attrs; ++i) {
7839 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7840 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7841 attr = &cinfo->attrs [i];
7847 MonoArray *typed_args, *named_args;
7848 CattrNamedArg *arginfo;
7852 MonoBoolean set_last_error = 0;
7855 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7856 g_assert (mono_error_ok (&error));
7857 g_assert (mono_array_length (typed_args) == 1);
7860 o = mono_array_get (typed_args, MonoObject*, 0);
7861 call_conv = *(gint32*)mono_object_unbox (o);
7864 for (i = 0; i < mono_array_length (named_args); ++i) {
7865 CattrNamedArg *narg = &arginfo [i];
7867 o = mono_array_get (named_args, MonoObject*, i);
7869 g_assert (narg->field);
7870 if (!strcmp (narg->field->name, "CharSet")) {
7871 charset = *(gint32*)mono_object_unbox (o);
7872 } else if (!strcmp (narg->field->name, "SetLastError")) {
7873 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7874 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7875 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7876 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7877 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7879 g_assert_not_reached ();
7885 memset (&piinfo, 0, sizeof (piinfo));
7887 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7889 csig->call_convention = call_conv - 1;
7892 if (cinfo && !cinfo->cached)
7893 mono_custom_attrs_free (cinfo);
7896 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7898 if (!target_handle) {
7901 // FIXME: Associate it with the method+delegate_klass pair
7902 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7903 info->d.native_to_managed.method = method;
7904 info->d.native_to_managed.klass = delegate_klass;
7906 res = mono_mb_create_and_cache_full (cache, method,
7907 mb, csig, sig->param_count + 16,
7913 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7917 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7919 mono_metadata_free_marshal_spec (mspecs [i]);
7922 /* code_for (res); */
7928 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7931 MonoMethodSignature *sig;
7932 MonoMethodBuilder *mb;
7937 method = mono_get_method (image, token, NULL);
7940 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7941 MonoMethodSignature *csig;
7942 MonoMarshalSpec **mspecs;
7943 EmitMarshalContext m;
7945 sig = mono_method_signature (method);
7946 g_assert (!sig->hasthis);
7948 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7949 mono_method_get_marshal_info (method, mspecs);
7951 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7952 csig = signature_dup (image, sig);
7956 memset (&m, 0, sizeof (m));
7964 mono_marshal_set_callconv_from_modopt (method, csig);
7966 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7968 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7973 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7976 for (i = sig->param_count; i >= 0; i--)
7978 mono_metadata_free_marshal_spec (mspecs [i]);
7981 return mono_compile_method (method);
7984 sig = mono_method_signature (method);
7985 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7987 param_count = sig->param_count + sig->hasthis;
7989 for (i = 0; i < param_count; i++)
7990 mono_mb_emit_ldarg (mb, i);
7992 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7993 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7995 mono_mb_emit_op (mb, CEE_CALL, method);
7996 mono_mb_emit_byte (mb, CEE_RET);
8001 method = mono_mb_create (mb, sig, param_count, NULL);
8004 return mono_compile_method (method);
8008 * This does the equivalent of mono_object_castclass_with_cache.
8009 * The wrapper info for the wrapper is a WrapperInfo structure.
8012 mono_marshal_get_castclass_with_cache (void)
8014 static MonoMethod *cached;
8016 MonoMethodBuilder *mb;
8017 MonoMethodSignature *sig;
8018 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8024 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8025 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8026 sig->params [0] = &mono_defaults.object_class->byval_arg;
8027 sig->params [1] = &mono_defaults.int_class->byval_arg;
8028 sig->params [2] = &mono_defaults.int_class->byval_arg;
8029 sig->ret = &mono_defaults.object_class->byval_arg;
8033 /* allocate local 0 (pointer) obj_vtable */
8034 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8037 mono_mb_emit_ldarg (mb, 0);
8038 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8040 /*obj_vtable = obj->vtable;*/
8041 mono_mb_emit_ldarg (mb, 0);
8042 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8043 mono_mb_emit_byte (mb, CEE_LDIND_I);
8044 mono_mb_emit_stloc (mb, 0);
8047 mono_mb_emit_ldarg (mb, 2);
8048 mono_mb_emit_byte (mb, CEE_LDIND_I);
8049 mono_mb_emit_ldloc (mb, 0);
8051 /*if (*cache == obj_vtable)*/
8052 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8055 mono_mb_emit_ldarg (mb, 0);
8056 mono_mb_emit_byte (mb, CEE_RET);
8058 mono_mb_patch_branch (mb, cache_miss_pos);
8059 /*if (mono_object_isinst (obj, klass)) */
8060 mono_mb_emit_ldarg (mb, 0);
8061 mono_mb_emit_ldarg (mb, 1);
8062 mono_mb_emit_icall (mb, mono_object_isinst);
8063 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8065 /**cache = obj_vtable;*/
8066 mono_mb_emit_ldarg (mb, 2);
8067 mono_mb_emit_ldloc (mb, 0);
8068 mono_mb_emit_byte (mb, CEE_STIND_I);
8071 mono_mb_emit_ldarg (mb, 0);
8072 mono_mb_emit_byte (mb, CEE_RET);
8075 mono_mb_patch_branch (mb, invalid_cast_pos);
8076 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8079 mono_mb_patch_branch (mb, return_null_pos);
8080 mono_mb_emit_byte (mb, CEE_LDNULL);
8081 mono_mb_emit_byte (mb, CEE_RET);
8082 #endif /* DISABLE_JIT */
8084 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8085 res = mono_mb_create (mb, sig, 8, info);
8088 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8089 mono_free_method (res);
8090 mono_metadata_free_method_signature (sig);
8098 * This does the equivalent of mono_object_isinst_with_cache.
8099 * The wrapper info for the wrapper is a WrapperInfo structure.
8102 mono_marshal_get_isinst_with_cache (void)
8104 static MonoMethod *cached;
8106 MonoMethodBuilder *mb;
8107 MonoMethodSignature *sig;
8108 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8114 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8115 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8116 sig->params [0] = &mono_defaults.object_class->byval_arg;
8117 sig->params [1] = &mono_defaults.int_class->byval_arg;
8118 sig->params [2] = &mono_defaults.int_class->byval_arg;
8119 sig->ret = &mono_defaults.object_class->byval_arg;
8123 /* allocate local 0 (pointer) obj_vtable */
8124 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8125 /* allocate local 1 (pointer) cached_vtable */
8126 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8129 mono_mb_emit_ldarg (mb, 0);
8130 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8132 /*obj_vtable = obj->vtable;*/
8133 mono_mb_emit_ldarg (mb, 0);
8134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8135 mono_mb_emit_byte (mb, CEE_LDIND_I);
8136 mono_mb_emit_stloc (mb, 0);
8138 /* cached_vtable = *cache*/
8139 mono_mb_emit_ldarg (mb, 2);
8140 mono_mb_emit_byte (mb, CEE_LDIND_I);
8141 mono_mb_emit_stloc (mb, 1);
8143 mono_mb_emit_ldloc (mb, 1);
8144 mono_mb_emit_byte (mb, CEE_LDC_I4);
8145 mono_mb_emit_i4 (mb, ~0x1);
8146 mono_mb_emit_byte (mb, CEE_CONV_U);
8147 mono_mb_emit_byte (mb, CEE_AND);
8148 mono_mb_emit_ldloc (mb, 0);
8149 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8150 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8152 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8153 mono_mb_emit_ldloc (mb, 1);
8154 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8155 mono_mb_emit_byte (mb, CEE_CONV_U);
8156 mono_mb_emit_byte (mb, CEE_AND);
8157 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8160 mono_mb_emit_ldarg (mb, 0);
8161 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8164 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8165 mono_mb_emit_byte (mb, CEE_LDNULL);
8167 mono_mb_patch_branch (mb, cache_hit_pos);
8168 mono_mb_emit_byte (mb, CEE_RET);
8170 mono_mb_patch_branch (mb, cache_miss_pos);
8171 /*if (mono_object_isinst (obj, klass)) */
8172 mono_mb_emit_ldarg (mb, 0);
8173 mono_mb_emit_ldarg (mb, 1);
8174 mono_mb_emit_icall (mb, mono_object_isinst);
8175 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8177 /**cache = obj_vtable;*/
8178 mono_mb_emit_ldarg (mb, 2);
8179 mono_mb_emit_ldloc (mb, 0);
8180 mono_mb_emit_byte (mb, CEE_STIND_I);
8183 mono_mb_emit_ldarg (mb, 0);
8184 mono_mb_emit_byte (mb, CEE_RET);
8187 mono_mb_patch_branch (mb, not_an_instance_pos);
8188 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8189 mono_mb_emit_ldarg (mb, 2);
8190 /*obj_vtable | 0x1*/
8191 mono_mb_emit_ldloc (mb, 0);
8192 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8193 mono_mb_emit_byte (mb, CEE_CONV_U);
8194 mono_mb_emit_byte (mb, CEE_OR);
8197 mono_mb_emit_byte (mb, CEE_STIND_I);
8200 mono_mb_patch_branch (mb, return_null_pos);
8201 mono_mb_emit_byte (mb, CEE_LDNULL);
8202 mono_mb_emit_byte (mb, CEE_RET);
8205 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8206 res = mono_mb_create (mb, sig, 8, info);
8209 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8210 mono_free_method (res);
8211 mono_metadata_free_method_signature (sig);
8219 * mono_marshal_get_isinst:
8220 * @klass: the type of the field
8222 * This method generates a function which can be used to check if an object is
8223 * an instance of the given type, icluding the case where the object is a proxy.
8224 * The generated function has the following signature:
8225 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8228 mono_marshal_get_isinst (MonoClass *klass)
8230 static MonoMethodSignature *isint_sig = NULL;
8234 int pos_was_ok, pos_end;
8235 #ifndef DISABLE_REMOTING
8236 int pos_end2, pos_failed;
8239 MonoMethodBuilder *mb;
8241 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8242 if ((res = mono_marshal_find_in_cache (cache, klass)))
8246 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8247 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8248 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8249 isint_sig->pinvoke = 0;
8252 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8253 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8256 mb->method->save_lmf = 1;
8259 /* check if the object is a proxy that needs special cast */
8260 mono_mb_emit_ldarg (mb, 0);
8261 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8262 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8264 /* The result of MONO_CISINST can be:
8265 0) the type check succeeded
8266 1) the type check did not succeed
8267 2) a CanCastTo call is needed */
8268 #ifndef DISABLE_REMOTING
8269 mono_mb_emit_byte (mb, CEE_DUP);
8270 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8272 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8273 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8275 /* get the real proxy from the transparent proxy*/
8277 mono_mb_emit_ldarg (mb, 0);
8278 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8279 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8283 mono_mb_patch_branch (mb, pos_failed);
8284 mono_mb_emit_byte (mb, CEE_LDNULL);
8285 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8289 mono_mb_patch_branch (mb, pos_was_ok);
8290 mono_mb_emit_byte (mb, CEE_POP);
8291 mono_mb_emit_ldarg (mb, 0);
8295 mono_mb_patch_branch (mb, pos_end);
8296 mono_mb_patch_branch (mb, pos_end2);
8297 mono_mb_emit_byte (mb, CEE_RET);
8299 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8303 mono_mb_emit_byte (mb, CEE_LDNULL);
8304 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8308 mono_mb_patch_branch (mb, pos_was_ok);
8309 mono_mb_emit_ldarg (mb, 0);
8313 mono_mb_patch_branch (mb, pos_end);
8314 mono_mb_emit_byte (mb, CEE_RET);
8315 #endif /* DISABLE_REMOTING */
8316 #endif /* DISABLE_JIT */
8318 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8319 info->d.proxy.klass = klass;
8320 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8327 * mono_marshal_get_castclass:
8328 * @klass: the type of the field
8330 * This method generates a function which can be used to cast an object to
8331 * an instance of the given type, icluding the case where the object is a proxy.
8332 * The generated function has the following signature:
8333 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8334 * The wrapper info for the wrapper is a WrapperInfo structure.
8337 mono_marshal_get_castclass (MonoClass *klass)
8339 static MonoMethodSignature *castclass_sig = NULL;
8342 #ifndef DISABLE_REMOTING
8343 int pos_was_ok, pos_was_ok2;
8346 MonoMethodBuilder *mb;
8349 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8350 if ((res = mono_marshal_find_in_cache (cache, klass)))
8353 if (!castclass_sig) {
8354 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8355 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8356 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8357 castclass_sig->pinvoke = 0;
8360 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8361 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8364 mb->method->save_lmf = 1;
8367 /* check if the object is a proxy that needs special cast */
8368 mono_mb_emit_ldarg (mb, 0);
8369 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8370 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8372 /* The result of MONO_CCASTCLASS can be:
8373 0) the cast is valid
8374 1) cast of unknown proxy type
8375 or an exception if the cast is is invalid
8377 #ifndef DISABLE_REMOTING
8378 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8380 /* get the real proxy from the transparent proxy*/
8382 mono_mb_emit_ldarg (mb, 0);
8383 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8384 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8387 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8390 mono_mb_patch_branch (mb, pos_was_ok);
8391 mono_mb_patch_branch (mb, pos_was_ok2);
8393 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8394 mono_mb_emit_byte (mb, CEE_POP);
8395 #endif /* DISABLE_REMOTING */
8397 mono_mb_emit_ldarg (mb, 0);
8400 mono_mb_emit_byte (mb, CEE_RET);
8401 #endif /* DISABLE_JIT */
8403 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8405 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8413 * mono_marshal_get_struct_to_ptr:
8416 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8417 * The wrapper info for the wrapper is a WrapperInfo structure.
8420 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8422 MonoMethodBuilder *mb;
8423 static MonoMethod *stoptr = NULL;
8427 g_assert (klass != NULL);
8429 mono_marshal_load_type_info (klass);
8431 if (klass->marshal_info->str_to_ptr)
8432 return klass->marshal_info->str_to_ptr;
8435 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8438 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8441 if (klass->blittable) {
8442 mono_mb_emit_byte (mb, CEE_LDARG_1);
8443 mono_mb_emit_byte (mb, CEE_LDARG_0);
8444 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8445 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8446 mono_mb_emit_byte (mb, CEE_PREFIX1);
8447 mono_mb_emit_byte (mb, CEE_CPBLK);
8450 /* allocate local 0 (pointer) src_ptr */
8451 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8452 /* allocate local 1 (pointer) dst_ptr */
8453 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8454 /* allocate local 2 (boolean) delete_old */
8455 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8456 mono_mb_emit_byte (mb, CEE_LDARG_2);
8457 mono_mb_emit_stloc (mb, 2);
8459 /* initialize src_ptr to point to the start of object data */
8460 mono_mb_emit_byte (mb, CEE_LDARG_0);
8461 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8462 mono_mb_emit_stloc (mb, 0);
8464 /* initialize dst_ptr */
8465 mono_mb_emit_byte (mb, CEE_LDARG_1);
8466 mono_mb_emit_stloc (mb, 1);
8468 emit_struct_conv (mb, klass, FALSE);
8471 mono_mb_emit_byte (mb, CEE_RET);
8473 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8474 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8477 klass->marshal_info->str_to_ptr = res;
8482 * mono_marshal_get_ptr_to_struct:
8485 * generates IL code for PtrToStructure (IntPtr src, object structure)
8486 * The wrapper info for the wrapper is a WrapperInfo structure.
8489 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8491 MonoMethodBuilder *mb;
8492 static MonoMethodSignature *ptostr = NULL;
8496 g_assert (klass != NULL);
8498 mono_marshal_load_type_info (klass);
8500 if (klass->marshal_info->ptr_to_str)
8501 return klass->marshal_info->ptr_to_str;
8504 MonoMethodSignature *sig;
8506 /* Create the signature corresponding to
8507 static void PtrToStructure (IntPtr ptr, object structure);
8508 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8509 sig = mono_create_icall_signature ("void ptr object");
8510 sig = signature_dup (mono_defaults.corlib, sig);
8512 mono_memory_barrier ();
8516 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8519 if (klass->blittable) {
8520 mono_mb_emit_byte (mb, CEE_LDARG_1);
8521 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8522 mono_mb_emit_byte (mb, CEE_LDARG_0);
8523 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8524 mono_mb_emit_byte (mb, CEE_PREFIX1);
8525 mono_mb_emit_byte (mb, CEE_CPBLK);
8528 /* allocate local 0 (pointer) src_ptr */
8529 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8530 /* allocate local 1 (pointer) dst_ptr */
8531 mono_mb_add_local (mb, &klass->this_arg);
8533 /* initialize src_ptr to point to the start of object data */
8534 mono_mb_emit_byte (mb, CEE_LDARG_0);
8535 mono_mb_emit_stloc (mb, 0);
8537 /* initialize dst_ptr */
8538 mono_mb_emit_byte (mb, CEE_LDARG_1);
8539 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8540 mono_mb_emit_stloc (mb, 1);
8542 emit_struct_conv (mb, klass, TRUE);
8545 mono_mb_emit_byte (mb, CEE_RET);
8547 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8548 res = mono_mb_create (mb, ptostr, 0, info);
8551 klass->marshal_info->ptr_to_str = res;
8556 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8557 * This is used to avoid infinite recursion since it is hard to determine where to
8558 * replace a method with its synchronized wrapper, and where not.
8559 * The runtime should execute METHOD instead of the wrapper.
8560 * The wrapper info for the wrapper is a WrapperInfo structure.
8563 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8565 MonoMethodBuilder *mb;
8567 MonoMethodSignature *sig;
8569 MonoGenericContext *ctx = NULL;
8570 MonoGenericContainer *container = NULL;
8572 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8573 ctx = &((MonoMethodInflated*)method)->context;
8574 method = ((MonoMethodInflated*)method)->declaring;
8575 container = mono_method_get_generic_container (method);
8577 container = method->klass->generic_container;
8578 g_assert (container);
8581 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8583 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8584 mono_mb_emit_byte (mb, CEE_RET);
8586 sig = signature_dup (method->klass->image, mono_method_signature (method));
8588 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8589 info->d.synchronized_inner.method = method;
8590 res = mono_mb_create (mb, sig, 0, info);
8594 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8595 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8601 * generates IL code for the synchronized wrapper: the generated method
8602 * calls METHOD while locking 'this' or the parent type.
8605 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8607 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8608 MonoMethodSignature *sig;
8609 MonoExceptionClause *clause;
8610 MonoMethodBuilder *mb;
8613 int i, pos, this_local, ret_local = 0;
8614 MonoGenericContext *ctx = NULL;
8615 MonoMethod *orig_method = NULL;
8616 MonoGenericContainer *container = NULL;
8620 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8623 /* FIXME: Support generic methods too */
8624 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8625 orig_method = method;
8626 ctx = &((MonoMethodInflated*)method)->context;
8627 method = ((MonoMethodInflated*)method)->declaring;
8628 container = mono_method_get_generic_container (method);
8630 container = method->klass->generic_container;
8631 g_assert (container);
8638 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8639 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8643 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8644 if ((res = mono_marshal_find_in_cache (cache, method)))
8648 sig = signature_dup (method->klass->image, mono_method_signature (method));
8651 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8655 if (!MONO_TYPE_IS_VOID (sig->ret))
8656 ret_local = mono_mb_add_local (mb, sig->ret);
8659 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8660 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8662 /* This will throw the type load exception when the wrapper is compiled */
8663 mono_mb_emit_byte (mb, CEE_LDNULL);
8664 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8665 mono_mb_emit_byte (mb, CEE_POP);
8667 if (!MONO_TYPE_IS_VOID (sig->ret))
8668 mono_mb_emit_ldloc (mb, ret_local);
8669 mono_mb_emit_byte (mb, CEE_RET);
8672 res = mono_mb_create_and_cache (cache, method,
8673 mb, sig, sig->param_count + 16);
8681 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8683 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8684 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8687 mono_marshal_lock ();
8689 if (!enter_method) {
8690 MonoMethodDesc *desc;
8692 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8693 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8694 g_assert (enter_method);
8695 mono_method_desc_free (desc);
8697 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8698 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8699 g_assert (exit_method);
8700 mono_method_desc_free (desc);
8702 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8703 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8704 g_assert (gettypefromhandle_method);
8705 mono_method_desc_free (desc);
8708 mono_marshal_unlock ();
8711 /* Push this or the type object */
8712 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8713 /* We have special handling for this in the JIT */
8714 int index = mono_mb_add_data (mb, method->klass);
8715 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8716 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8717 mono_mb_emit_i4 (mb, index);
8719 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8722 mono_mb_emit_ldarg (mb, 0);
8723 mono_mb_emit_stloc (mb, this_local);
8725 /* Call Monitor::Enter() */
8726 mono_mb_emit_ldloc (mb, this_local);
8727 mono_mb_emit_managed_call (mb, enter_method, NULL);
8729 clause->try_offset = mono_mb_get_label (mb);
8731 /* Call the method */
8733 mono_mb_emit_ldarg (mb, 0);
8734 for (i = 0; i < sig->param_count; i++)
8735 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8739 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8740 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8742 mono_mb_emit_managed_call (mb, method, NULL);
8745 if (!MONO_TYPE_IS_VOID (sig->ret))
8746 mono_mb_emit_stloc (mb, ret_local);
8748 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8750 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8751 clause->handler_offset = mono_mb_get_label (mb);
8753 /* Call Monitor::Exit() */
8754 mono_mb_emit_ldloc (mb, this_local);
8755 mono_mb_emit_managed_call (mb, exit_method, NULL);
8756 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8758 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8760 mono_mb_patch_branch (mb, pos);
8761 if (!MONO_TYPE_IS_VOID (sig->ret))
8762 mono_mb_emit_ldloc (mb, ret_local);
8763 mono_mb_emit_byte (mb, CEE_RET);
8765 mono_mb_set_clauses (mb, 1, clause);
8770 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8771 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8773 res = mono_mb_create_and_cache (cache, method,
8774 mb, sig, sig->param_count + 16);
8783 * the returned method calls 'method' unboxing the this argument
8786 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8788 MonoMethodSignature *sig = mono_method_signature (method);
8790 MonoMethodBuilder *mb;
8794 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8795 if ((res = mono_marshal_find_in_cache (cache, method)))
8798 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8800 g_assert (sig->hasthis);
8803 mono_mb_emit_ldarg (mb, 0);
8804 mono_mb_emit_icon (mb, sizeof (MonoObject));
8805 mono_mb_emit_byte (mb, CEE_ADD);
8806 for (i = 0; i < sig->param_count; ++i)
8807 mono_mb_emit_ldarg (mb, i + 1);
8808 mono_mb_emit_managed_call (mb, method, NULL);
8809 mono_mb_emit_byte (mb, CEE_RET);
8812 res = mono_mb_create_and_cache (cache, method,
8813 mb, sig, sig->param_count + 16);
8816 /* code_for (res); */
8822 STELEMREF_OBJECT, /*no check at all*/
8823 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8824 STELEMREF_CLASS, /*only the klass->parents check*/
8825 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8826 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8827 STELEMREF_KIND_COUNT
8830 static const char *strelemref_wrapper_name[] = {
8831 "object", "sealed_class", "class", "interface", "complex"
8835 is_monomorphic_array (MonoClass *klass)
8837 MonoClass *element_class;
8838 if (klass->rank != 1)
8841 element_class = klass->element_class;
8842 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8846 get_virtual_stelemref_kind (MonoClass *element_class)
8848 if (element_class == mono_defaults.object_class)
8849 return STELEMREF_OBJECT;
8850 if (is_monomorphic_array (element_class))
8851 return STELEMREF_SEALED_CLASS;
8852 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8853 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8854 #ifdef COMPRESSED_INTERFACE_BITMAP
8855 return STELEMREF_COMPLEX;
8857 return STELEMREF_INTERFACE;
8859 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8860 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8861 return STELEMREF_COMPLEX;
8862 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8863 return STELEMREF_SEALED_CLASS;
8864 return STELEMREF_CLASS;
8870 load_array_element_address (MonoMethodBuilder *mb)
8872 mono_mb_emit_ldarg (mb, 0);
8873 mono_mb_emit_ldarg (mb, 1);
8874 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8878 load_array_class (MonoMethodBuilder *mb, int aklass)
8880 mono_mb_emit_ldarg (mb, 0);
8881 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8882 mono_mb_emit_byte (mb, CEE_LDIND_I);
8883 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8884 mono_mb_emit_byte (mb, CEE_LDIND_I);
8885 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8886 mono_mb_emit_byte (mb, CEE_LDIND_I);
8887 mono_mb_emit_stloc (mb, aklass);
8891 load_value_class (MonoMethodBuilder *mb, int vklass)
8893 mono_mb_emit_ldarg (mb, 2);
8894 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8895 mono_mb_emit_byte (mb, CEE_LDIND_I);
8896 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8897 mono_mb_emit_byte (mb, CEE_LDIND_I);
8898 mono_mb_emit_stloc (mb, vklass);
8904 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8906 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8907 printf ("slow vstore of %s\n", name);
8913 * The wrapper info for the wrapper is a WrapperInfo structure.
8916 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8917 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8918 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8919 * - Add a case for arrays of arrays.
8922 get_virtual_stelemref_wrapper (int kind)
8924 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8925 static MonoMethodSignature *signature;
8926 MonoMethodBuilder *mb;
8929 const char *param_names [16];
8931 int aklass, vklass, vtable, uiid;
8932 int array_slot_addr;
8935 if (cached_methods [kind])
8936 return cached_methods [kind];
8938 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8939 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8943 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8945 /* void this::stelemref (size_t idx, void* value) */
8946 sig->ret = &mono_defaults.void_class->byval_arg;
8947 sig->hasthis = TRUE;
8948 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8949 sig->params [1] = &mono_defaults.object_class->byval_arg;
8954 param_names [0] = "index";
8955 param_names [1] = "value";
8956 mono_mb_set_param_names (mb, param_names);
8958 /*For now simply call plain old stelemref*/
8960 case STELEMREF_OBJECT:
8961 /* ldelema (implicit bound check) */
8962 load_array_element_address (mb);
8964 mono_mb_emit_ldarg (mb, 2);
8965 mono_mb_emit_byte (mb, CEE_STIND_REF);
8966 mono_mb_emit_byte (mb, CEE_RET);
8969 case STELEMREF_COMPLEX:
8971 <ldelema (bound check)>
8974 if (!mono_object_isinst (value, aklass))
8978 *array_slot_addr = value;
8981 throw new ArrayTypeMismatchException ();
8984 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8985 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8989 /*Use this to debug/record stores that are going thru the slow path*/
8990 MonoMethodSignature *csig;
8991 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8992 csig->ret = &mono_defaults.void_class->byval_arg;
8993 csig->params [0] = &mono_defaults.object_class->byval_arg;
8994 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8995 csig->params [2] = &mono_defaults.object_class->byval_arg;
8996 mono_mb_emit_ldarg (mb, 0);
8997 mono_mb_emit_ldarg (mb, 1);
8998 mono_mb_emit_ldarg (mb, 2);
8999 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9003 /* ldelema (implicit bound check) */
9004 load_array_element_address (mb);
9005 mono_mb_emit_stloc (mb, array_slot_addr);
9007 /* if (!value) goto do_store */
9008 mono_mb_emit_ldarg (mb, 2);
9009 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9011 /* aklass = array->vtable->klass->element_class */
9012 load_array_class (mb, aklass);
9014 /*if (mono_object_isinst (value, aklass)) */
9015 mono_mb_emit_ldarg (mb, 2);
9016 mono_mb_emit_ldloc (mb, aklass);
9017 mono_mb_emit_icall (mb, mono_object_isinst);
9018 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9021 mono_mb_patch_branch (mb, b1);
9022 mono_mb_emit_ldloc (mb, array_slot_addr);
9023 mono_mb_emit_ldarg (mb, 2);
9024 mono_mb_emit_byte (mb, CEE_STIND_REF);
9025 mono_mb_emit_byte (mb, CEE_RET);
9028 mono_mb_patch_branch (mb, b2);
9030 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9033 case STELEMREF_SEALED_CLASS:
9035 <ldelema (bound check)>
9039 aklass = array->vtable->klass->element_class;
9040 vklass = value->vtable->klass;
9042 if (vklass != aklass)
9046 *array_slot_addr = value;
9049 throw new ArrayTypeMismatchException ();
9051 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9052 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9053 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9056 /* ldelema (implicit bound check) */
9057 load_array_element_address (mb);
9058 mono_mb_emit_stloc (mb, array_slot_addr);
9060 /* if (!value) goto do_store */
9061 mono_mb_emit_ldarg (mb, 2);
9062 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9064 /* aklass = array->vtable->klass->element_class */
9065 load_array_class (mb, aklass);
9067 /* vklass = value->vtable->klass */
9068 load_value_class (mb, vklass);
9070 /*if (vklass != aklass) goto do_exception; */
9071 mono_mb_emit_ldloc (mb, aklass);
9072 mono_mb_emit_ldloc (mb, vklass);
9073 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9076 mono_mb_patch_branch (mb, b1);
9077 mono_mb_emit_ldloc (mb, array_slot_addr);
9078 mono_mb_emit_ldarg (mb, 2);
9079 mono_mb_emit_byte (mb, CEE_STIND_REF);
9080 mono_mb_emit_byte (mb, CEE_RET);
9083 mono_mb_patch_branch (mb, b2);
9084 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9087 case STELEMREF_CLASS:
9090 <ldelema (bound check)>
9094 aklass = array->vtable->klass->element_class;
9095 vklass = value->vtable->klass;
9097 if (vklass->idepth < aklass->idepth)
9100 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9104 *array_slot_addr = value;
9108 throw new ArrayTypeMismatchException ();
9110 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9111 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9112 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9114 /* ldelema (implicit bound check) */
9115 load_array_element_address (mb);
9116 mono_mb_emit_stloc (mb, array_slot_addr);
9118 /* if (!value) goto do_store */
9119 mono_mb_emit_ldarg (mb, 2);
9120 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9122 /* aklass = array->vtable->klass->element_class */
9123 load_array_class (mb, aklass);
9125 /* vklass = value->vtable->klass */
9126 load_value_class (mb, vklass);
9128 /*if (mono_object_isinst (value, aklass)) */
9129 mono_mb_emit_ldarg (mb, 2);
9130 mono_mb_emit_ldloc (mb, aklass);
9131 mono_mb_emit_icall (mb, mono_object_isinst);
9132 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9134 /* if (vklass->idepth < aklass->idepth) goto failue */
9135 mono_mb_emit_ldloc (mb, vklass);
9136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9137 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9139 mono_mb_emit_ldloc (mb, aklass);
9140 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9141 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9143 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9145 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9146 mono_mb_emit_ldloc (mb, vklass);
9147 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9148 mono_mb_emit_byte (mb, CEE_LDIND_I);
9150 mono_mb_emit_ldloc (mb, aklass);
9151 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9152 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9153 mono_mb_emit_icon (mb, 1);
9154 mono_mb_emit_byte (mb, CEE_SUB);
9155 mono_mb_emit_icon (mb, sizeof (void*));
9156 mono_mb_emit_byte (mb, CEE_MUL);
9157 mono_mb_emit_byte (mb, CEE_ADD);
9158 mono_mb_emit_byte (mb, CEE_LDIND_I);
9160 mono_mb_emit_ldloc (mb, aklass);
9161 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9164 mono_mb_patch_branch (mb, b1);
9165 mono_mb_emit_ldloc (mb, array_slot_addr);
9166 mono_mb_emit_ldarg (mb, 2);
9167 mono_mb_emit_byte (mb, CEE_STIND_REF);
9168 mono_mb_emit_byte (mb, CEE_RET);
9171 mono_mb_patch_branch (mb, b2);
9172 mono_mb_patch_branch (mb, b3);
9174 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9177 case STELEMREF_INTERFACE:
9184 klass = array->obj.vtable->klass->element_class;
9186 uiid = klass->interface_id;
9187 if (uiid > vt->max_interface_id)
9189 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9192 mono_array_setref (array, index, value);
9195 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9197 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9198 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9199 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9200 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9202 /* ldelema (implicit bound check) */
9203 load_array_element_address (mb);
9204 mono_mb_emit_stloc (mb, array_slot_addr);
9206 /* if (!value) goto do_store */
9207 mono_mb_emit_ldarg (mb, 2);
9208 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9210 /* klass = array->vtable->klass->element_class */
9211 load_array_class (mb, aklass);
9213 /* vt = value->vtable */
9214 mono_mb_emit_ldarg (mb, 2);
9215 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9216 mono_mb_emit_byte (mb, CEE_LDIND_I);
9217 mono_mb_emit_stloc (mb, vtable);
9219 /* uiid = klass->interface_id; */
9220 mono_mb_emit_ldloc (mb, aklass);
9221 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9222 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9223 mono_mb_emit_stloc (mb, uiid);
9225 /*if (uiid > vt->max_interface_id)*/
9226 mono_mb_emit_ldloc (mb, uiid);
9227 mono_mb_emit_ldloc (mb, vtable);
9228 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9229 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9230 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9232 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9234 /*vt->interface_bitmap*/
9235 mono_mb_emit_ldloc (mb, vtable);
9236 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9237 mono_mb_emit_byte (mb, CEE_LDIND_I);
9240 mono_mb_emit_ldloc (mb, uiid);
9241 mono_mb_emit_icon (mb, 3);
9242 mono_mb_emit_byte (mb, CEE_SHR_UN);
9244 /*vt->interface_bitmap [(uiid) >> 3]*/
9245 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9246 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9248 /*(1 << ((uiid)&7)))*/
9249 mono_mb_emit_icon (mb, 1);
9250 mono_mb_emit_ldloc (mb, uiid);
9251 mono_mb_emit_icon (mb, 7);
9252 mono_mb_emit_byte (mb, CEE_AND);
9253 mono_mb_emit_byte (mb, CEE_SHL);
9255 /*bitwise and the whole thing*/
9256 mono_mb_emit_byte (mb, CEE_AND);
9257 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9260 mono_mb_patch_branch (mb, b1);
9261 mono_mb_emit_ldloc (mb, array_slot_addr);
9262 mono_mb_emit_ldarg (mb, 2);
9263 mono_mb_emit_byte (mb, CEE_STIND_REF);
9264 mono_mb_emit_byte (mb, CEE_RET);
9267 mono_mb_patch_branch (mb, b2);
9268 mono_mb_patch_branch (mb, b3);
9269 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9273 mono_mb_emit_ldarg (mb, 0);
9274 mono_mb_emit_ldarg (mb, 1);
9275 mono_mb_emit_ldarg (mb, 2);
9276 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9277 mono_mb_emit_byte (mb, CEE_RET);
9280 #endif /* DISABLE_JIT */
9281 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9282 info->d.virtual_stelemref.kind = kind;
9283 res = mono_mb_create (mb, signature, 4, info);
9284 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9286 mono_marshal_lock ();
9287 if (!cached_methods [kind]) {
9288 cached_methods [kind] = res;
9289 mono_marshal_unlock ();
9291 mono_marshal_unlock ();
9292 mono_free_method (res);
9296 return cached_methods [kind];
9300 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9304 g_assert (array_class->rank == 1);
9305 kind = get_virtual_stelemref_kind (array_class->element_class);
9307 return get_virtual_stelemref_wrapper (kind);
9311 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9316 *nwrappers = STELEMREF_KIND_COUNT;
9317 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9318 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9319 res [i] = get_virtual_stelemref_wrapper (i);
9324 * The wrapper info for the wrapper is a WrapperInfo structure.
9327 mono_marshal_get_stelemref (void)
9329 static MonoMethod* ret = NULL;
9330 MonoMethodSignature *sig;
9331 MonoMethodBuilder *mb;
9334 guint32 b1, b2, b3, b4;
9337 int array_slot_addr;
9342 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9345 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9347 /* void stelemref (void* array, int idx, void* value) */
9348 sig->ret = &mono_defaults.void_class->byval_arg;
9349 sig->params [0] = &mono_defaults.object_class->byval_arg;
9350 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9351 sig->params [2] = &mono_defaults.object_class->byval_arg;
9354 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9355 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9356 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9360 <ldelema (bound check)>
9364 aklass = array->vtable->klass->element_class;
9365 vklass = value->vtable->klass;
9367 if (vklass->idepth < aklass->idepth)
9370 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9374 *array_slot_addr = value;
9378 if (mono_object_isinst (value, aklass))
9381 throw new ArrayTypeMismatchException ();
9384 /* ldelema (implicit bound check) */
9385 mono_mb_emit_ldarg (mb, 0);
9386 mono_mb_emit_ldarg (mb, 1);
9387 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9388 mono_mb_emit_stloc (mb, array_slot_addr);
9390 /* if (!value) goto do_store */
9391 mono_mb_emit_ldarg (mb, 2);
9392 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9394 /* aklass = array->vtable->klass->element_class */
9395 mono_mb_emit_ldarg (mb, 0);
9396 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9397 mono_mb_emit_byte (mb, CEE_LDIND_I);
9398 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9399 mono_mb_emit_byte (mb, CEE_LDIND_I);
9400 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9401 mono_mb_emit_byte (mb, CEE_LDIND_I);
9402 mono_mb_emit_stloc (mb, aklass);
9404 /* vklass = value->vtable->klass */
9405 mono_mb_emit_ldarg (mb, 2);
9406 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9407 mono_mb_emit_byte (mb, CEE_LDIND_I);
9408 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9409 mono_mb_emit_byte (mb, CEE_LDIND_I);
9410 mono_mb_emit_stloc (mb, vklass);
9412 /* if (vklass->idepth < aklass->idepth) goto failue */
9413 mono_mb_emit_ldloc (mb, vklass);
9414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9415 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9417 mono_mb_emit_ldloc (mb, aklass);
9418 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9419 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9421 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9423 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9424 mono_mb_emit_ldloc (mb, vklass);
9425 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9426 mono_mb_emit_byte (mb, CEE_LDIND_I);
9428 mono_mb_emit_ldloc (mb, aklass);
9429 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9430 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9431 mono_mb_emit_icon (mb, 1);
9432 mono_mb_emit_byte (mb, CEE_SUB);
9433 mono_mb_emit_icon (mb, sizeof (void*));
9434 mono_mb_emit_byte (mb, CEE_MUL);
9435 mono_mb_emit_byte (mb, CEE_ADD);
9436 mono_mb_emit_byte (mb, CEE_LDIND_I);
9438 mono_mb_emit_ldloc (mb, aklass);
9440 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9442 copy_pos = mono_mb_get_label (mb);
9444 mono_mb_patch_branch (mb, b1);
9445 mono_mb_emit_ldloc (mb, array_slot_addr);
9446 mono_mb_emit_ldarg (mb, 2);
9447 mono_mb_emit_byte (mb, CEE_STIND_REF);
9449 mono_mb_emit_byte (mb, CEE_RET);
9452 mono_mb_patch_branch (mb, b2);
9453 mono_mb_patch_branch (mb, b3);
9455 mono_mb_emit_ldarg (mb, 2);
9456 mono_mb_emit_ldloc (mb, aklass);
9457 mono_mb_emit_icall (mb, mono_object_isinst);
9459 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9460 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9461 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9463 mono_mb_emit_byte (mb, CEE_RET);
9465 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9466 ret = mono_mb_create (mb, sig, 4, info);
9473 * mono_marshal_get_gsharedvt_in_wrapper:
9475 * This wrapper handles calls from normal code to gsharedvt code.
9477 * The wrapper info for the wrapper is a WrapperInfo structure.
9480 mono_marshal_get_gsharedvt_in_wrapper (void)
9482 static MonoMethod* ret = NULL;
9483 MonoMethodSignature *sig;
9484 MonoMethodBuilder *mb;
9490 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9492 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9493 sig->ret = &mono_defaults.void_class->byval_arg;
9497 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9499 mono_mb_emit_byte (mb, CEE_RET);
9501 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9502 ret = mono_mb_create (mb, sig, 4, info);
9509 * mono_marshal_get_gsharedvt_out_wrapper:
9511 * This wrapper handles calls from gsharedvt code to normal code.
9513 * The wrapper info for the wrapper is a WrapperInfo structure.
9516 mono_marshal_get_gsharedvt_out_wrapper (void)
9518 static MonoMethod* ret = NULL;
9519 MonoMethodSignature *sig;
9520 MonoMethodBuilder *mb;
9526 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9528 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9529 sig->ret = &mono_defaults.void_class->byval_arg;
9533 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9535 mono_mb_emit_byte (mb, CEE_RET);
9537 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9538 ret = mono_mb_create (mb, sig, 4, info);
9550 /* LOCKING: vars accessed under the marshal lock */
9551 static ArrayElemAddr *elem_addr_cache = NULL;
9552 static int elem_addr_cache_size = 0;
9553 static int elem_addr_cache_next = 0;
9556 * mono_marshal_get_array_address:
9557 * @rank: rank of the array type
9558 * @elem_size: size in bytes of an element of an array.
9560 * Returns a MonoMethod that implements the code to get the address
9561 * of an element in a multi-dimenasional array of @rank dimensions.
9562 * The returned method takes an array as the first argument and then
9563 * @rank indexes for the @rank dimensions.
9564 * If ELEM_SIZE is 0, read the array size from the array object.
9567 mono_marshal_get_array_address (int rank, int elem_size)
9570 MonoMethodBuilder *mb;
9571 MonoMethodSignature *sig;
9574 int i, bounds, ind, realidx;
9575 int branch_pos, *branch_positions;
9579 mono_marshal_lock ();
9580 for (i = 0; i < elem_addr_cache_next; ++i) {
9581 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9582 ret = elem_addr_cache [i].method;
9586 mono_marshal_unlock ();
9590 branch_positions = g_new0 (int, rank);
9592 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9594 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9595 sig->ret = &mono_defaults.int_class->byval_arg;
9596 sig->params [0] = &mono_defaults.object_class->byval_arg;
9597 for (i = 0; i < rank; ++i) {
9598 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9601 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9602 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9606 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9607 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9608 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9610 /* bounds = array->bounds; */
9611 mono_mb_emit_ldarg (mb, 0);
9612 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9613 mono_mb_emit_byte (mb, CEE_LDIND_I);
9614 mono_mb_emit_stloc (mb, bounds);
9616 /* ind is the overall element index, realidx is the partial index in a single dimension */
9617 /* ind = idx0 - bounds [0].lower_bound */
9618 mono_mb_emit_ldarg (mb, 1);
9619 mono_mb_emit_ldloc (mb, bounds);
9620 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9621 mono_mb_emit_byte (mb, CEE_ADD);
9622 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9623 mono_mb_emit_byte (mb, CEE_SUB);
9624 mono_mb_emit_stloc (mb, ind);
9625 /* if (ind >= bounds [0].length) goto exeception; */
9626 mono_mb_emit_ldloc (mb, ind);
9627 mono_mb_emit_ldloc (mb, bounds);
9628 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9629 mono_mb_emit_byte (mb, CEE_ADD);
9630 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9631 /* note that we use unsigned comparison */
9632 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9634 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9635 * We could also decide to ignore the passed elem_size and get it
9636 * from the array object, to reduce the number of methods we generate:
9637 * the additional cost is 3 memory loads and a non-immediate mul.
9639 for (i = 1; i < rank; ++i) {
9640 /* realidx = idxi - bounds [i].lower_bound */
9641 mono_mb_emit_ldarg (mb, 1 + i);
9642 mono_mb_emit_ldloc (mb, bounds);
9643 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9644 mono_mb_emit_byte (mb, CEE_ADD);
9645 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9646 mono_mb_emit_byte (mb, CEE_SUB);
9647 mono_mb_emit_stloc (mb, realidx);
9648 /* if (realidx >= bounds [i].length) goto exeception; */
9649 mono_mb_emit_ldloc (mb, realidx);
9650 mono_mb_emit_ldloc (mb, bounds);
9651 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9652 mono_mb_emit_byte (mb, CEE_ADD);
9653 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9654 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9655 /* ind = ind * bounds [i].length + realidx */
9656 mono_mb_emit_ldloc (mb, ind);
9657 mono_mb_emit_ldloc (mb, bounds);
9658 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9659 mono_mb_emit_byte (mb, CEE_ADD);
9660 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9661 mono_mb_emit_byte (mb, CEE_MUL);
9662 mono_mb_emit_ldloc (mb, realidx);
9663 mono_mb_emit_byte (mb, CEE_ADD);
9664 mono_mb_emit_stloc (mb, ind);
9667 /* return array->vector + ind * element_size */
9668 mono_mb_emit_ldarg (mb, 0);
9669 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9670 mono_mb_emit_ldloc (mb, ind);
9672 mono_mb_emit_icon (mb, elem_size);
9674 /* Load arr->vtable->klass->sizes.element_class */
9675 mono_mb_emit_ldarg (mb, 0);
9676 mono_mb_emit_byte (mb, CEE_CONV_I);
9677 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9678 mono_mb_emit_byte (mb, CEE_ADD);
9679 mono_mb_emit_byte (mb, CEE_LDIND_I);
9680 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9681 mono_mb_emit_byte (mb, CEE_ADD);
9682 mono_mb_emit_byte (mb, CEE_LDIND_I);
9683 /* sizes is an union, so this reads sizes.element_size */
9684 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9685 mono_mb_emit_byte (mb, CEE_ADD);
9686 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9688 mono_mb_emit_byte (mb, CEE_MUL);
9689 mono_mb_emit_byte (mb, CEE_ADD);
9690 mono_mb_emit_byte (mb, CEE_RET);
9692 /* patch the branches to get here and throw */
9693 for (i = 1; i < rank; ++i) {
9694 mono_mb_patch_branch (mb, branch_positions [i]);
9696 mono_mb_patch_branch (mb, branch_pos);
9697 /* throw exception */
9698 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9700 g_free (branch_positions);
9701 #endif /* DISABLE_JIT */
9703 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9704 info->d.element_addr.rank = rank;
9705 info->d.element_addr.elem_size = elem_size;
9706 ret = mono_mb_create (mb, sig, 4, info);
9709 /* cache the result */
9711 mono_marshal_lock ();
9712 for (i = 0; i < elem_addr_cache_next; ++i) {
9713 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9714 /* FIXME: free ret */
9715 ret = elem_addr_cache [i].method;
9721 if (elem_addr_cache_next >= elem_addr_cache_size) {
9722 int new_size = elem_addr_cache_size + 4;
9723 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9724 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9725 g_free (elem_addr_cache);
9726 elem_addr_cache = new_array;
9727 elem_addr_cache_size = new_size;
9729 elem_addr_cache [elem_addr_cache_next].rank = rank;
9730 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9731 elem_addr_cache [elem_addr_cache_next].method = ret;
9732 elem_addr_cache_next ++;
9734 mono_marshal_unlock ();
9739 * mono_marshal_get_array_accessor_wrapper:
9741 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9744 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9746 MonoMethodSignature *sig;
9747 MonoMethodBuilder *mb;
9751 MonoGenericContext *ctx = NULL;
9752 MonoMethod *orig_method = NULL;
9753 MonoGenericContainer *container = NULL;
9757 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9758 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9759 * FIXME: Use generic methods.
9766 g_assert_not_reached ();
9768 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9769 if ((res = mono_marshal_find_in_cache (cache, method)))
9773 sig = signature_dup (method->klass->image, mono_method_signature (method));
9776 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9779 /* Call the method */
9781 mono_mb_emit_ldarg (mb, 0);
9782 for (i = 0; i < sig->param_count; i++)
9783 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9787 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9788 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9790 mono_mb_emit_managed_call (mb, method, NULL);
9792 mono_mb_emit_byte (mb, CEE_RET);
9797 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9798 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9800 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9801 info->d.array_accessor.method = method;
9803 res = mono_mb_create_and_cache_full (cache, method,
9804 mb, sig, sig->param_count + 16,
9813 mono_marshal_alloc (gulong size)
9818 res = CoTaskMemAlloc (size);
9820 res = g_try_malloc ((gulong)size);
9822 mono_gc_out_of_memory ((gulong)size);
9828 mono_marshal_free (gpointer ptr)
9831 CoTaskMemFree (ptr);
9838 mono_marshal_free_array (gpointer *ptr, int size)
9845 for (i = 0; i < size; i++)
9851 mono_marshal_string_to_utf16 (MonoString *s)
9853 return s ? mono_string_chars (s) : NULL;
9857 mono_marshal_string_to_utf16_copy (MonoString *s)
9862 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9863 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9864 res [mono_string_length (s)] = 0;
9870 * mono_marshal_set_last_error:
9872 * This function is invoked to set the last error value from a P/Invoke call
9873 * which has SetLastError set.
9876 mono_marshal_set_last_error (void)
9879 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9881 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9886 mono_marshal_set_last_error_windows (int error)
9889 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9894 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9895 gpointer dest, gint32 length)
9900 MONO_CHECK_ARG_NULL (src,);
9901 MONO_CHECK_ARG_NULL (dest,);
9903 if (src->obj.vtable->klass->rank != 1) {
9904 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9907 if (start_index < 0) {
9908 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9912 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9915 if (start_index + length > mono_array_length (src)) {
9916 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9920 element_size = mono_array_element_size (src->obj.vtable->klass);
9922 /* no references should be involved */
9923 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9925 memcpy (dest, source_addr, length * element_size);
9929 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9930 MonoArray *dest, gint32 length)
9935 MONO_CHECK_ARG_NULL (src,);
9936 MONO_CHECK_ARG_NULL (dest,);
9938 if (dest->obj.vtable->klass->rank != 1) {
9939 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9942 if (start_index < 0) {
9943 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9947 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9950 if (start_index + length > mono_array_length (dest)) {
9951 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9954 element_size = mono_array_element_size (dest->obj.vtable->klass);
9956 /* no references should be involved */
9957 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9959 memcpy (dest_addr, src, length * element_size);
9963 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9968 return mono_string_new (mono_domain_get (), ptr);
9972 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9975 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9978 return mono_string_new_len (mono_domain_get (), ptr, len);
9983 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9985 MonoDomain *domain = mono_domain_get ();
9995 return mono_string_new_utf16 (domain, ptr, len);
9999 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10001 MonoDomain *domain = mono_domain_get ();
10004 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10007 return mono_string_new_utf16 (domain, ptr, len);
10012 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10014 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10018 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10024 MONO_CHECK_ARG_NULL (rtype, 0);
10026 type = rtype->type;
10027 klass = mono_class_from_mono_type (type);
10028 if (!mono_class_init (klass)) {
10029 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10033 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10035 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10036 return sizeof (gpointer);
10037 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10039 MonoException *exc;
10041 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10042 exc = mono_get_exception_argument ("t", msg);
10044 mono_set_pending_exception (exc);
10048 return mono_class_native_size (klass, NULL);
10052 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10054 MonoMethod *method;
10057 MONO_CHECK_ARG_NULL (obj,);
10058 MONO_CHECK_ARG_NULL (dst,);
10060 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10064 pa [2] = &delete_old;
10066 mono_runtime_invoke (method, NULL, pa, NULL);
10070 ptr_to_structure (gpointer src, MonoObject *dst)
10072 MonoMethod *method;
10075 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10080 mono_runtime_invoke (method, NULL, pa, NULL);
10084 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10088 MONO_CHECK_ARG_NULL (src,);
10089 MONO_CHECK_ARG_NULL (dst,);
10091 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10093 if (t->type == MONO_TYPE_VALUETYPE) {
10094 MonoException *exc;
10097 tmp = g_strdup_printf ("Destination is a boxed value type.");
10098 exc = mono_get_exception_argument ("dst", tmp);
10101 mono_set_pending_exception (exc);
10105 ptr_to_structure (src, dst);
10109 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10112 MonoDomain *domain = mono_domain_get ();
10117 MONO_CHECK_ARG_NULL (type, NULL);
10119 klass = mono_class_from_mono_type (type->type);
10120 if (!mono_class_init (klass)) {
10121 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10125 res = mono_object_new (domain, klass);
10127 ptr_to_structure (src, res);
10133 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10135 MonoMarshalType *info;
10138 int match_index = -1;
10140 MONO_CHECK_ARG_NULL (type, 0);
10141 MONO_CHECK_ARG_NULL (field_name, 0);
10143 fname = mono_string_to_utf8 (field_name);
10144 klass = mono_class_from_mono_type (type->type);
10145 if (!mono_class_init (klass)) {
10146 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10150 while (klass && match_index == -1) {
10151 MonoClassField* field;
10153 gpointer iter = NULL;
10154 while ((field = mono_class_get_fields (klass, &iter))) {
10155 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10157 if (!strcmp (fname, mono_field_get_name (field))) {
10164 if (match_index == -1)
10165 klass = klass->parent;
10170 if(match_index == -1) {
10171 MonoException* exc;
10174 /* Get back original class instance */
10175 klass = mono_class_from_mono_type (type->type);
10177 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10178 exc = mono_get_exception_argument ("fieldName", tmp);
10181 mono_set_pending_exception ((MonoException*)exc);
10185 info = mono_marshal_load_type_info (klass);
10186 return info->fields [match_index].offset;
10190 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10195 tres = mono_string_to_utf8 (string);
10199 len = strlen (tres) + 1;
10200 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10201 memcpy (ret, tres, len);
10206 return mono_string_to_utf8 (string);
10211 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10213 if (string == NULL)
10216 #ifdef TARGET_WIN32
10217 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10218 ((mono_string_length (string) + 1) * 2);
10220 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10222 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10223 res [mono_string_length (string)] = 0;
10229 mono_struct_delete_old (MonoClass *klass, char *ptr)
10231 MonoMarshalType *info;
10234 info = mono_marshal_load_type_info (klass);
10236 for (i = 0; i < info->num_fields; i++) {
10237 MonoMarshalConv conv;
10238 MonoType *ftype = info->fields [i].field->type;
10241 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10244 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10245 klass->unicode, &conv);
10247 cpos = ptr + info->fields [i].offset;
10250 case MONO_MARSHAL_CONV_NONE:
10251 if (MONO_TYPE_ISSTRUCT (ftype)) {
10252 mono_struct_delete_old (ftype->data.klass, cpos);
10256 case MONO_MARSHAL_CONV_STR_LPWSTR:
10257 /* We assume this field points inside a MonoString */
10259 case MONO_MARSHAL_CONV_STR_LPTSTR:
10260 #ifdef TARGET_WIN32
10261 /* We assume this field points inside a MonoString
10265 case MONO_MARSHAL_CONV_STR_LPSTR:
10266 case MONO_MARSHAL_CONV_STR_BSTR:
10267 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10268 case MONO_MARSHAL_CONV_STR_TBSTR:
10269 mono_marshal_free (*(gpointer *)cpos);
10279 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10283 MONO_CHECK_ARG_NULL (src,);
10284 MONO_CHECK_ARG_NULL (type,);
10286 klass = mono_class_from_mono_type (type->type);
10287 if (!mono_class_init (klass)) {
10288 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10292 mono_struct_delete_old (klass, (char *)src);
10296 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10300 if ((gulong)size == 0)
10301 /* This returns a valid pointer for size 0 on MS.NET */
10305 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10307 res = g_try_malloc ((gulong)size);
10310 mono_gc_out_of_memory ((gulong)size);
10316 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10321 mono_gc_out_of_memory ((gulong)size);
10326 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10328 res = g_try_realloc (ptr, (gulong)size);
10331 mono_gc_out_of_memory ((gulong)size);
10337 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10347 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10350 return CoTaskMemAlloc (size);
10352 return g_try_malloc ((gulong)size);
10357 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10360 CoTaskMemFree (ptr);
10367 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10370 return CoTaskMemRealloc (ptr, size);
10372 return g_try_realloc (ptr, (gulong)size);
10377 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10379 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10383 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10385 MonoClass *klass = mono_type_get_class (type->type);
10386 if (!mono_class_init (klass)) {
10387 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10391 return mono_ftnptr_to_delegate (klass, ftn);
10395 * mono_marshal_is_loading_type_info:
10397 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10401 mono_marshal_is_loading_type_info (MonoClass *klass)
10403 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10405 return g_slist_find (loads_list, klass) != NULL;
10409 * mono_marshal_load_type_info:
10411 * Initialize klass->marshal_info using information from metadata. This function can
10412 * recursively call itself, and the caller is responsible to avoid that by calling
10413 * mono_marshal_is_loading_type_info () beforehand.
10415 * LOCKING: Acquires the loader lock.
10418 mono_marshal_load_type_info (MonoClass* klass)
10421 guint32 native_size = 0, min_align = 1, packing;
10422 MonoMarshalType *info;
10423 MonoClassField* field;
10426 GSList *loads_list;
10428 g_assert (klass != NULL);
10430 if (klass->marshal_info)
10431 return klass->marshal_info;
10433 if (!klass->inited)
10434 mono_class_init (klass);
10436 if (klass->marshal_info)
10437 return klass->marshal_info;
10440 * This function can recursively call itself, so we keep the list of classes which are
10441 * under initialization in a TLS list.
10443 g_assert (!mono_marshal_is_loading_type_info (klass));
10444 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10445 loads_list = g_slist_prepend (loads_list, klass);
10446 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10449 while ((field = mono_class_get_fields (klass, &iter))) {
10450 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10452 if (mono_field_is_deleted (field))
10457 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10459 /* The mempool is protected by the loader lock */
10460 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10461 info->num_fields = count;
10463 /* Try to find a size for this type in metadata */
10464 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10466 if (klass->parent) {
10467 int parent_size = mono_class_native_size (klass->parent, NULL);
10469 /* Add parent size to real size */
10470 native_size += parent_size;
10471 info->native_size = parent_size;
10474 packing = klass->packing_size ? klass->packing_size : 8;
10477 while ((field = mono_class_get_fields (klass, &iter))) {
10481 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10484 if (mono_field_is_deleted (field))
10486 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10487 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10488 NULL, NULL, &info->fields [j].mspec);
10490 info->fields [j].field = field;
10492 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10493 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10494 /* This field is a hack inserted by MCS to empty structures */
10499 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10500 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10501 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10502 &align, TRUE, klass->unicode);
10503 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10504 min_align = MAX (align, min_align);
10505 info->fields [j].offset = info->native_size;
10506 info->fields [j].offset += align - 1;
10507 info->fields [j].offset &= ~(align - 1);
10508 info->native_size = info->fields [j].offset + size;
10510 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10511 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10512 &align, TRUE, klass->unicode);
10513 min_align = MAX (align, min_align);
10514 info->fields [j].offset = field->offset - sizeof (MonoObject);
10515 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10521 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10522 info->native_size = MAX (native_size, info->native_size);
10524 * If the provided Size is equal or larger than the calculated size, and there
10525 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10527 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10528 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10531 min_align = MIN (min_align, packing);
10535 if (info->native_size & (min_align - 1)) {
10536 info->native_size += min_align - 1;
10537 info->native_size &= ~(min_align - 1);
10540 info->min_align = min_align;
10542 /* Update the class's blittable info, if the layouts don't match */
10543 if (info->native_size != mono_class_value_size (klass, NULL))
10544 klass->blittable = FALSE;
10546 /* If this is an array type, ensure that we have element info */
10547 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10548 mono_marshal_load_type_info (klass->element_class);
10551 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10552 loads_list = g_slist_remove (loads_list, klass);
10553 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10555 mono_marshal_lock ();
10556 if (!klass->marshal_info) {
10557 /*We do double-checking locking on marshal_info */
10558 mono_memory_barrier ();
10559 klass->marshal_info = info;
10561 mono_marshal_unlock ();
10563 return klass->marshal_info;
10567 * mono_class_native_size:
10570 * Returns: the native size of an object instance (when marshaled
10571 * to unmanaged code)
10574 mono_class_native_size (MonoClass *klass, guint32 *align)
10576 if (!klass->marshal_info) {
10577 if (mono_marshal_is_loading_type_info (klass)) {
10582 mono_marshal_load_type_info (klass);
10587 *align = klass->marshal_info->min_align;
10589 return klass->marshal_info->native_size;
10593 * mono_type_native_stack_size:
10594 * @t: the type to return the size it uses on the stack
10596 * Returns: the number of bytes required to hold an instance of this
10597 * type on the native stack
10600 mono_type_native_stack_size (MonoType *t, guint32 *align)
10604 g_assert (t != NULL);
10610 *align = sizeof (gpointer);
10611 return sizeof (gpointer);
10615 case MONO_TYPE_BOOLEAN:
10616 case MONO_TYPE_CHAR:
10627 case MONO_TYPE_STRING:
10628 case MONO_TYPE_OBJECT:
10629 case MONO_TYPE_CLASS:
10630 case MONO_TYPE_SZARRAY:
10631 case MONO_TYPE_PTR:
10632 case MONO_TYPE_FNPTR:
10633 case MONO_TYPE_ARRAY:
10634 *align = sizeof (gpointer);
10635 return sizeof (gpointer);
10640 *align = MONO_ABI_ALIGNOF (double);
10644 *align = MONO_ABI_ALIGNOF (gint64);
10646 case MONO_TYPE_GENERICINST:
10647 if (!mono_type_generic_inst_is_valuetype (t)) {
10648 *align = sizeof (gpointer);
10649 return sizeof (gpointer);
10652 case MONO_TYPE_TYPEDBYREF:
10653 case MONO_TYPE_VALUETYPE: {
10655 MonoClass *klass = mono_class_from_mono_type (t);
10657 if (klass->enumtype)
10658 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10660 size = mono_class_native_size (klass, align);
10661 *align = *align + 3;
10671 g_error ("type 0x%02x unknown", t->type);
10677 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10678 gboolean as_field, gboolean unicode)
10680 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10683 switch (native_type) {
10684 case MONO_NATIVE_BOOLEAN:
10687 case MONO_NATIVE_I1:
10688 case MONO_NATIVE_U1:
10691 case MONO_NATIVE_I2:
10692 case MONO_NATIVE_U2:
10693 case MONO_NATIVE_VARIANTBOOL:
10696 case MONO_NATIVE_I4:
10697 case MONO_NATIVE_U4:
10698 case MONO_NATIVE_ERROR:
10701 case MONO_NATIVE_I8:
10702 case MONO_NATIVE_U8:
10703 *align = MONO_ABI_ALIGNOF (gint64);
10705 case MONO_NATIVE_R4:
10708 case MONO_NATIVE_R8:
10709 *align = MONO_ABI_ALIGNOF (double);
10711 case MONO_NATIVE_INT:
10712 case MONO_NATIVE_UINT:
10713 case MONO_NATIVE_LPSTR:
10714 case MONO_NATIVE_LPWSTR:
10715 case MONO_NATIVE_LPTSTR:
10716 case MONO_NATIVE_BSTR:
10717 case MONO_NATIVE_ANSIBSTR:
10718 case MONO_NATIVE_TBSTR:
10719 case MONO_NATIVE_LPARRAY:
10720 case MONO_NATIVE_SAFEARRAY:
10721 case MONO_NATIVE_IUNKNOWN:
10722 case MONO_NATIVE_IDISPATCH:
10723 case MONO_NATIVE_INTERFACE:
10724 case MONO_NATIVE_ASANY:
10725 case MONO_NATIVE_FUNC:
10726 case MONO_NATIVE_LPSTRUCT:
10727 *align = MONO_ABI_ALIGNOF (gpointer);
10728 return sizeof (gpointer);
10729 case MONO_NATIVE_STRUCT:
10730 klass = mono_class_from_mono_type (type);
10731 if (klass == mono_defaults.object_class &&
10732 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10736 return mono_class_native_size (klass, align);
10737 case MONO_NATIVE_BYVALTSTR: {
10738 int esize = unicode ? 2: 1;
10741 return mspec->data.array_data.num_elem * esize;
10743 case MONO_NATIVE_BYVALARRAY: {
10744 // FIXME: Have to consider ArraySubType
10746 klass = mono_class_from_mono_type (type);
10747 if (klass->element_class == mono_defaults.char_class) {
10748 esize = unicode ? 2 : 1;
10751 esize = mono_class_native_size (klass->element_class, align);
10754 return mspec->data.array_data.num_elem * esize;
10756 case MONO_NATIVE_CUSTOM:
10757 *align = sizeof (gpointer);
10758 return sizeof (gpointer);
10760 case MONO_NATIVE_CURRENCY:
10761 case MONO_NATIVE_VBBYREFSTR:
10763 g_error ("native type %02x not implemented", native_type);
10766 g_assert_not_reached ();
10771 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10779 t = &o->vtable->klass->byval_arg;
10783 case MONO_TYPE_PTR:
10786 case MONO_TYPE_BOOLEAN:
10789 case MONO_TYPE_CHAR:
10794 return mono_object_unbox (o);
10796 case MONO_TYPE_STRING:
10797 switch (string_encoding) {
10798 case MONO_NATIVE_LPWSTR:
10799 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10801 case MONO_NATIVE_LPSTR:
10802 return mono_string_to_lpstr ((MonoString*)o);
10805 g_warning ("marshaling conversion %d not implemented", string_encoding);
10806 g_assert_not_reached ();
10809 case MONO_TYPE_CLASS:
10810 case MONO_TYPE_VALUETYPE: {
10811 MonoMethod *method;
10814 MonoBoolean delete_old = FALSE;
10816 klass = t->data.klass;
10818 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10821 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10822 klass->blittable || klass->enumtype))
10823 return mono_object_unbox (o);
10825 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10827 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10828 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10832 pa [2] = &delete_old;
10834 mono_runtime_invoke (method, NULL, pa, NULL);
10842 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10847 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10855 t = &o->vtable->klass->byval_arg;
10857 case MONO_TYPE_STRING:
10858 switch (string_encoding) {
10859 case MONO_NATIVE_LPWSTR:
10860 case MONO_NATIVE_LPSTR:
10861 mono_marshal_free (ptr);
10864 g_warning ("marshaling conversion %d not implemented", string_encoding);
10865 g_assert_not_reached ();
10868 case MONO_TYPE_CLASS:
10869 case MONO_TYPE_VALUETYPE: {
10870 klass = t->data.klass;
10872 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10873 klass->blittable || klass->enumtype))
10876 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10877 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10883 mono_runtime_invoke (method, NULL, pa, NULL);
10886 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10887 mono_struct_delete_old (klass, ptr);
10890 mono_marshal_free (ptr);
10899 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10901 MonoMethodSignature *sig, *csig;
10902 MonoMethodBuilder *mb;
10907 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10908 mb->method->slot = -1;
10910 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10911 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10913 sig = mono_method_signature (method);
10914 csig = signature_dup (method->klass->image, sig);
10915 csig->generic_param_count = 0;
10917 #ifndef DISABLE_JIT
10918 mono_mb_emit_ldarg (mb, 0);
10919 for (i = 0; i < csig->param_count; i++)
10920 mono_mb_emit_ldarg (mb, i + 1);
10921 mono_mb_emit_managed_call (mb, method, NULL);
10922 mono_mb_emit_byte (mb, CEE_RET);
10924 /* We can corlib internal methods */
10925 mb->skip_visibility = TRUE;
10927 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10928 info->d.generic_array_helper.method = method;
10929 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10937 * The mono_win32_compat_* functions are implementations of inline
10938 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10939 * although not exported by kernel32.
10941 * We map the appropiate kernel32 entries to these functions using
10942 * dllmaps declared in the global etc/mono/config.
10946 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10948 if (!dest || !source)
10951 memcpy (dest, source, length);
10955 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10957 memset (dest, fill, length);
10961 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10963 if (!dest || !source)
10966 memmove (dest, source, length);
10970 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10972 memset (dest, 0, length);
10976 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10981 for (i = 0; i < len; ++i)
10985 g_assert (i < len);
10988 while (byte && !(byte & 1))
10990 g_assert (byte == 1);
10993 *bitmask = buf [i];
10997 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10999 MonoMethodBuilder *mb;
11000 MonoMethodSignature *sig, *csig;
11001 MonoExceptionClause *clause;
11006 int i, param_count, sig_size, pos_leave;
11010 klass = method->klass;
11011 image = method->klass->image;
11012 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11014 if ((res = mono_marshal_find_in_cache (cache, method)))
11017 sig = mono_method_signature (method);
11018 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11020 /* add "this" and exception param */
11021 param_count = sig->param_count + sig->hasthis + 1;
11023 /* dup & extend signature */
11024 csig = mono_metadata_signature_alloc (image, param_count);
11025 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11026 memcpy (csig, sig, sig_size);
11027 csig->param_count = param_count;
11030 csig->call_convention = MONO_CALL_DEFAULT;
11032 if (sig->hasthis) {
11034 csig->params [0] = &klass->byval_arg;
11035 /* move params up by one */
11036 for (i = 0; i < sig->param_count; i++)
11037 csig->params [i + 1] = sig->params [i];
11040 /* setup exception param as byref+[out] */
11041 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11042 &mono_defaults.exception_class->byval_arg);
11043 csig->params [param_count - 1]->byref = 1;
11044 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11046 /* convert struct return to object */
11047 if (MONO_TYPE_ISSTRUCT (sig->ret))
11048 csig->ret = &mono_defaults.object_class->byval_arg;
11050 #ifndef DISABLE_JIT
11051 /* local 0 (temp for exception object) */
11052 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11054 /* local 1 (temp for result) */
11055 if (!MONO_TYPE_IS_VOID (sig->ret))
11056 mono_mb_add_local (mb, sig->ret);
11058 /* clear exception arg */
11059 mono_mb_emit_ldarg (mb, param_count - 1);
11060 mono_mb_emit_byte (mb, CEE_LDNULL);
11061 mono_mb_emit_byte (mb, CEE_STIND_REF);
11064 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11065 clause->try_offset = mono_mb_get_label (mb);
11067 /* push method's args */
11068 for (i = 0; i < param_count - 1; i++) {
11072 mono_mb_emit_ldarg (mb, i);
11074 /* get the byval type of the param */
11075 klass = mono_class_from_mono_type (csig->params [i]);
11076 type = &klass->byval_arg;
11078 /* unbox struct args */
11079 if (MONO_TYPE_ISSTRUCT (type)) {
11080 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11082 /* byref args & and the "this" arg must remain a ptr.
11083 Otherwise make a copy of the value type */
11084 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11085 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11087 csig->params [i] = &mono_defaults.object_class->byval_arg;
11092 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11093 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11095 mono_mb_emit_op (mb, CEE_CALL, method);
11097 /* save result at local 1 */
11098 if (!MONO_TYPE_IS_VOID (sig->ret))
11099 mono_mb_emit_stloc (mb, 1);
11101 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11104 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11105 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11106 clause->data.catch_class = mono_defaults.object_class;
11108 clause->handler_offset = mono_mb_get_label (mb);
11110 /* store exception at local 0 */
11111 mono_mb_emit_stloc (mb, 0);
11112 mono_mb_emit_ldarg (mb, param_count - 1);
11113 mono_mb_emit_ldloc (mb, 0);
11114 mono_mb_emit_byte (mb, CEE_STIND_REF);
11115 mono_mb_emit_branch (mb, CEE_LEAVE);
11117 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11119 mono_mb_set_clauses (mb, 1, clause);
11121 mono_mb_patch_branch (mb, pos_leave);
11124 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11125 mono_mb_emit_ldloc (mb, 1);
11127 /* box the return value */
11128 if (MONO_TYPE_ISSTRUCT (sig->ret))
11129 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11132 mono_mb_emit_byte (mb, CEE_RET);
11135 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11142 * mono_marshal_free_dynamic_wrappers:
11144 * Free wrappers of the dynamic method METHOD.
11147 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11149 MonoImage *image = method->klass->image;
11151 g_assert (method_is_dynamic (method));
11153 /* This could be called during shutdown */
11154 if (marshal_mutex_initialized)
11155 mono_marshal_lock ();
11157 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11158 * they could be shared with other methods ?
11160 if (image->runtime_invoke_direct_cache)
11161 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11162 if (image->delegate_abstract_invoke_cache)
11163 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11164 // FIXME: Need to clear the caches in other images as well
11165 if (image->delegate_bound_static_invoke_cache)
11166 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11168 if (marshal_mutex_initialized)
11169 mono_marshal_unlock ();
11173 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11175 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11176 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11178 return mono_metadata_signature_equal (pair->sig, sig);
11182 * mono_marshal_free_inflated_wrappers:
11184 * Free wrappers of the inflated method METHOD.
11187 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11189 MonoMethodSignature *sig = method->signature;
11191 g_assert (method->is_inflated);
11193 /* Ignore calls occuring late during cleanup. */
11194 if (!marshal_mutex_initialized)
11197 mono_marshal_lock ();
11199 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11200 * they could be shared with other methods ?
11204 * indexed by MonoMethodSignature
11206 /* FIXME: This could remove unrelated wrappers as well */
11207 if (sig && method->klass->image->delegate_begin_invoke_cache)
11208 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11209 if (sig && method->klass->image->delegate_end_invoke_cache)
11210 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11211 if (sig && method->klass->image->delegate_invoke_cache)
11212 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11213 if (sig && method->klass->image->runtime_invoke_cache)
11214 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11215 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11216 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11219 * indexed by SignaturePointerPair
11221 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11222 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11223 signature_pointer_pair_matches_signature, (gpointer)sig);
11226 * indexed by MonoMethod pointers
11228 if (method->klass->image->runtime_invoke_direct_cache)
11229 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11230 if (method->klass->image->managed_wrapper_cache)
11231 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11232 if (method->klass->image->native_wrapper_cache)
11233 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11234 if (method->klass->image->remoting_invoke_cache)
11235 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11236 if (method->klass->image->synchronized_cache)
11237 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11238 if (method->klass->image->unbox_wrapper_cache)
11239 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11240 if (method->klass->image->cominterop_invoke_cache)
11241 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11242 if (method->klass->image->cominterop_wrapper_cache)
11243 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11244 if (method->klass->image->thunk_invoke_cache)
11245 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11246 if (method->klass->image->native_func_wrapper_aot_cache)
11247 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11249 mono_marshal_unlock ();