2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threadpool.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internal.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
48 /* #define DEBUG_RUNTIME_CODE */
50 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
54 #include "mono/cil/opcode.def"
60 * This mutex protects the various marshalling related caches in MonoImage
61 * and a few other data structures static to this file.
63 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
64 * runtime locking latice. Which means it can take simple locks suck as the image lock.
66 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
67 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
68 static mono_mutex_t marshal_mutex;
69 static gboolean marshal_mutex_initialized;
71 static MonoNativeTlsKey last_error_tls_id;
73 static MonoNativeTlsKey load_type_info_tls_id;
75 static gboolean use_aot_wrappers;
78 delegate_hash_table_add (MonoDelegate *d);
81 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
84 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
87 mono_struct_delete_old (MonoClass *klass, char *ptr);
90 mono_marshal_string_to_utf16 (MonoString *s);
93 mono_marshal_string_to_utf16_copy (MonoString *s);
96 mono_string_to_lpstr (MonoString *string_obj);
98 static MonoStringBuilder *
99 mono_string_utf8_to_builder2 (char *text);
101 static MonoStringBuilder *
102 mono_string_utf16_to_builder2 (gunichar2 *text);
105 mono_string_new_len_wrapper (const char *text, guint length);
108 mono_string_from_byvalstr (const char *data, int len);
111 mono_string_from_byvalwstr (gunichar2 *data, int len);
114 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
117 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_set_last_error_windows (int error);
134 static void init_safe_handle (void);
136 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
137 static MonoMethod *sh_dangerous_add_ref;
138 static MonoMethod *sh_dangerous_release;
144 sh_dangerous_add_ref = mono_class_get_method_from_name (
145 mono_defaults.safehandle_class, "DangerousAddRef", 1);
146 sh_dangerous_release = mono_class_get_method_from_name (
147 mono_defaults.safehandle_class, "DangerousRelease", 0);
151 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
153 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
155 mono_register_jit_icall (func, name, sig, save);
158 static MonoMethodSignature*
159 signature_dup (MonoImage *image, MonoMethodSignature *sig)
161 MonoMethodSignature *res;
164 res = mono_metadata_signature_alloc (image, sig->param_count);
165 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
166 memcpy (res, sig, sigsize);
172 mono_signature_no_pinvoke (MonoMethod *method)
174 MonoMethodSignature *sig = mono_method_signature (method);
176 sig = signature_dup (method->klass->image, sig);
177 sig->pinvoke = FALSE;
184 mono_marshal_init_tls (void)
186 mono_native_tls_alloc (&last_error_tls_id, NULL);
187 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
191 mono_marshal_init (void)
193 static gboolean module_initialized = FALSE;
195 if (!module_initialized) {
196 module_initialized = TRUE;
197 mono_mutex_init_recursive (&marshal_mutex);
198 marshal_mutex_initialized = TRUE;
200 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
201 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
202 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
203 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
204 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
205 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
206 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
207 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
208 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
209 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
210 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
211 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
212 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
214 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
215 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
216 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
217 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
218 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
219 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
220 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
221 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
222 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
223 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
224 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
225 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
226 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
227 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
228 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
229 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
230 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
231 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
232 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
233 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
234 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
235 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
236 register_icall (g_free, "g_free", "void ptr", FALSE);
237 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
238 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
239 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
240 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
241 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
242 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
243 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
244 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
245 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
247 mono_cominterop_init ();
248 mono_remoting_init ();
253 mono_marshal_cleanup (void)
255 mono_cominterop_cleanup ();
257 mono_native_tls_free (load_type_info_tls_id);
258 mono_native_tls_free (last_error_tls_id);
259 mono_mutex_destroy (&marshal_mutex);
260 marshal_mutex_initialized = FALSE;
264 mono_marshal_lock_internal (void)
266 mono_marshal_lock ();
270 mono_marshal_unlock_internal (void)
272 mono_marshal_unlock ();
276 mono_delegate_to_ftnptr (MonoDelegate *delegate)
278 MonoMethod *method, *wrapper;
280 uint32_t target_handle = 0;
285 if (delegate->delegate_trampoline)
286 return delegate->delegate_trampoline;
288 klass = ((MonoObject *)delegate)->vtable->klass;
289 g_assert (klass->delegate);
291 method = delegate->method;
293 if (mono_method_signature (method)->pinvoke) {
294 const char *exc_class, *exc_arg;
297 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
299 g_assert (exc_class);
300 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
305 if (delegate->target) {
306 /* Produce a location which can be embedded in JITted code */
307 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
310 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
312 delegate->delegate_trampoline = mono_compile_method (wrapper);
314 // Add the delegate to the delegate hash table
315 delegate_hash_table_add (delegate);
317 /* when the object is collected, collect the dynamic method, too */
318 mono_object_register_finalizer ((MonoObject*)delegate);
320 return delegate->delegate_trampoline;
324 * this hash table maps from a delegate trampoline object to a weak reference
325 * of the delegate. As an optimizations with a non-moving GC we store the
326 * object pointer itself, otherwise we use a GC handle.
328 static GHashTable *delegate_hash_table;
331 delegate_hash_table_new (void) {
332 return g_hash_table_new (NULL, NULL);
336 delegate_hash_table_remove (MonoDelegate *d)
338 guint32 gchandle = 0;
340 mono_marshal_lock ();
341 if (delegate_hash_table == NULL)
342 delegate_hash_table = delegate_hash_table_new ();
343 if (mono_gc_is_moving ())
344 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
345 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
346 mono_marshal_unlock ();
347 if (mono_gc_is_moving ())
348 mono_gchandle_free (gchandle);
352 delegate_hash_table_add (MonoDelegate *d)
355 guint32 old_gchandle;
357 mono_marshal_lock ();
358 if (delegate_hash_table == NULL)
359 delegate_hash_table = delegate_hash_table_new ();
360 if (mono_gc_is_moving ()) {
361 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
362 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
363 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
365 mono_gchandle_free (old_gchandle);
367 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
369 mono_marshal_unlock ();
373 * mono_marshal_use_aot_wrappers:
375 * Instructs this module to use AOT compatible wrappers.
378 mono_marshal_use_aot_wrappers (gboolean use)
380 use_aot_wrappers = use;
384 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
386 static MonoClass *UnmanagedFunctionPointerAttribute;
387 MonoCustomAttrInfo *cinfo;
388 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
390 if (!UnmanagedFunctionPointerAttribute)
391 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
393 /* The attribute is only available in Net 2.0 */
394 if (UnmanagedFunctionPointerAttribute) {
396 * The pinvoke attributes are stored in a real custom attribute so we have to
399 cinfo = mono_custom_attrs_from_class (klass);
400 if (cinfo && !mono_runtime_get_no_exec ()) {
402 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
404 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
406 if (!mono_error_ok (&error)) {
407 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
408 mono_error_cleanup (&error);
412 mono_custom_attrs_free (cinfo);
418 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
426 mono_marshal_lock ();
427 if (delegate_hash_table == NULL)
428 delegate_hash_table = delegate_hash_table_new ();
430 if (mono_gc_is_moving ()) {
431 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
432 mono_marshal_unlock ();
434 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
438 d = g_hash_table_lookup (delegate_hash_table, ftn);
439 mono_marshal_unlock ();
442 /* This is a native function, so construct a delegate for it */
443 MonoMethodSignature *sig;
445 MonoMarshalSpec **mspecs;
446 MonoMethod *invoke = mono_get_delegate_invoke (klass);
447 MonoMethodPInvoke piinfo;
451 if (use_aot_wrappers) {
452 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
453 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
455 memset (&piinfo, 0, sizeof (piinfo));
456 parse_unmanaged_function_pointer_attr (klass, &piinfo);
458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
459 mono_method_get_marshal_info (invoke, mspecs);
460 /* Freed below so don't alloc from mempool */
461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
464 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
467 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
469 mono_metadata_free_marshal_spec (mspecs [i]);
474 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
475 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
478 if (d->object.vtable->domain != mono_domain_get ())
479 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
485 mono_delegate_free_ftnptr (MonoDelegate *delegate)
490 delegate_hash_table_remove (delegate);
492 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
494 if (!delegate->target) {
495 /* The wrapper method is shared between delegates -> no need to free it */
504 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
507 method = mono_jit_info_get_method (ji);
508 method_data = ((MonoMethodWrapper*)method)->method_data;
510 /*the target gchandle is the first entry after size and the wrapper itself.*/
511 gchandle = GPOINTER_TO_UINT (method_data [2]);
514 mono_gchandle_free (gchandle);
516 mono_runtime_free_method (mono_object_domain (delegate), method);
521 mono_string_from_byvalstr (const char *data, int max_len)
523 MonoDomain *domain = mono_domain_get ();
529 while (len < max_len - 1 && data [len])
532 return mono_string_new_len (domain, data, len);
536 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
538 MonoDomain *domain = mono_domain_get ();
544 while (data [len]) len++;
546 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
550 mono_array_to_savearray (MonoArray *array)
555 g_assert_not_reached ();
560 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
574 klass = array->obj.vtable->klass;
576 switch (klass->element_class->byval_arg.type) {
578 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
587 case MONO_TYPE_BOOLEAN:
600 case MONO_TYPE_VALUETYPE:
604 case MONO_TYPE_GENERICINST:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_ARRAY:
607 case MONO_TYPE_SZARRAY:
608 case MONO_TYPE_STRING:
610 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
611 g_assert_not_reached ();
614 return array->vector;
618 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
629 klass = array->obj.vtable->klass;
631 switch (klass->element_class->byval_arg.type) {
632 case MONO_TYPE_CLASS:
633 for(i = 0; i < array->max_length; ++i)
634 mono_marshal_free_ccw(nativeArray[i]);
642 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
644 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
646 if (elclass == mono_defaults.byte_class) {
647 GError *error = NULL;
651 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
654 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
658 g_error_free (error);
661 g_assert_not_reached ();
665 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
667 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
671 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
673 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
675 if (elclass == mono_defaults.byte_class) {
677 GError *error = NULL;
679 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
681 MonoException *exc = mono_get_exception_argument ("string", error->message);
682 g_error_free (error);
683 mono_raise_exception (exc);
686 memcpy (native_arr, as, MIN (strlen (as), elnum));
689 g_assert_not_reached ();
694 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
696 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
700 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
702 GError *error = NULL;
712 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
714 if (items_written > mono_stringbuilder_capacity (sb))
715 items_written = mono_stringbuilder_capacity (sb);
718 if (! sb->str || sb->str == sb->cached_str)
719 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
721 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
722 sb->length = items_written;
723 sb->cached_str = NULL;
725 g_error_free (error);
731 mono_string_utf8_to_builder2 (char *text)
734 MonoStringBuilder *sb;
735 static MonoClass *string_builder_class;
736 static MonoMethod *sb_ctor;
743 if (!string_builder_class) {
744 MonoMethodDesc *desc;
746 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
747 g_assert (string_builder_class);
748 desc = mono_method_desc_new (":.ctor(int)", FALSE);
749 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
751 mono_method_desc_free (desc);
756 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
759 mono_runtime_invoke (sb_ctor, sb, args, &exc);
762 mono_string_utf8_to_builder (sb, text);
768 * FIXME: This routine does not seem to do what it seems to do
769 * the @text is never copied into the string builder
772 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
779 g_assert (mono_string_chars (sb->str) == text);
781 for (len = 0; text [len] != 0; ++len)
788 mono_string_utf16_to_builder2 (gunichar2 *text)
791 MonoStringBuilder *sb;
792 static MonoClass *string_builder_class;
793 static MonoMethod *sb_ctor;
800 if (!string_builder_class) {
801 MonoMethodDesc *desc;
803 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
804 g_assert (string_builder_class);
805 desc = mono_method_desc_new (":.ctor(int)", FALSE);
806 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
808 mono_method_desc_free (desc);
811 for (len = 0; text [len] != 0; ++len)
814 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
817 mono_runtime_invoke (sb_ctor, sb, args, &exc);
821 memcpy (mono_string_chars (sb->str), text, len * 2);
827 * mono_string_builder_to_utf8:
828 * @sb: the string builder
830 * Converts to utf8 the contents of the MonoStringBuilder.
832 * Returns: a utf8 string with the contents of the StringBuilder.
834 * The return value must be released with g_free.
837 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
839 GError *error = NULL;
840 gchar *tmp, *res = NULL;
845 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
847 * The sb could have been allocated with the default capacity and be empty.
848 * we need to alloc a buffer of the default capacity in this case.
850 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
851 sb->cached_str = NULL;
854 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
856 g_error_free (error);
857 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
859 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
860 memcpy (res, tmp, sb->length + 1);
868 * mono_string_builder_to_utf16:
869 * @sb: the string builder
871 * Converts to utf16 the contents of the MonoStringBuilder.
873 * Returns: a utf16 string with the contents of the StringBuilder.
875 * The return value must not be freed.
878 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
886 * The stringbuilder might not have ownership of this string. If this is
887 * the case, we must duplicate the string, so that we don't munge immutable
890 if (sb->str == sb->cached_str) {
892 * The sb could have been allocated with the default capacity and be empty.
893 * we need to alloc a buffer of the default capacity in this case.
895 if (sb->str->length == 0)
896 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
898 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
899 sb->cached_str = NULL;
903 *(mono_string_chars (sb->str)) = '\0';
905 return mono_string_chars (sb->str);
909 mono_string_to_lpstr (MonoString *s)
914 GError *error = NULL;
920 as = CoTaskMemAlloc (1);
925 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
927 MonoException *exc = mono_get_exception_argument ("string", error->message);
928 g_error_free (error);
929 mono_raise_exception(exc);
932 as = CoTaskMemAlloc (len + 1);
933 memcpy (as, tmp, len + 1);
938 return mono_string_to_utf8 (s);
943 mono_string_to_ansibstr (MonoString *string_obj)
945 g_error ("UnmanagedMarshal.BStr is not implemented.");
950 * mono_string_to_byvalstr:
951 * @dst: Where to store the null-terminated utf8 decoded string.
952 * @src: the MonoString to copy.
953 * @size: the maximum number of bytes to copy.
955 * Copies the MonoString pointed to by @src as a utf8 string
956 * into @dst, it copies at most @size bytes into the destination.
959 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
964 g_assert (dst != NULL);
967 memset (dst, 0, size);
971 s = mono_string_to_utf8 (src);
972 len = MIN (size, strlen (s));
975 memcpy (dst, s, len);
980 * mono_string_to_byvalwstr:
981 * @dst: Where to store the null-terminated utf16 decoded string.
982 * @src: the MonoString to copy.
983 * @size: the maximum number of bytes to copy.
985 * Copies the MonoString pointed to by @src as a utf16 string into
986 * @dst, it copies at most @size bytes into the destination (including
987 * a terminating 16-bit zero terminator).
990 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
994 g_assert (dst != NULL);
998 memset (dst, 0, size * 2);
1002 len = MIN (size, (mono_string_length (src)));
1003 memcpy (dst, mono_string_chars (src), size * 2);
1004 if (size <= mono_string_length (src))
1006 *((gunichar2 *) dst + len) = 0;
1010 mono_string_new_len_wrapper (const char *text, guint length)
1012 return mono_string_new_len (mono_domain_get (), text, length);
1018 * mono_mb_emit_exception_marshal_directive:
1020 * This function assumes ownership of MSG, which should be malloc-ed.
1023 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1028 s = mono_image_strdup (mb->method->klass->image, msg);
1033 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1036 #endif /* !DISABLE_JIT */
1039 mono_type_to_ldind (MonoType *type)
1045 switch (type->type) {
1047 return CEE_LDIND_I1;
1049 case MONO_TYPE_BOOLEAN:
1050 return CEE_LDIND_U1;
1052 return CEE_LDIND_I2;
1054 case MONO_TYPE_CHAR:
1055 return CEE_LDIND_U2;
1057 return CEE_LDIND_I4;
1059 return CEE_LDIND_U4;
1063 case MONO_TYPE_FNPTR:
1065 case MONO_TYPE_CLASS:
1066 case MONO_TYPE_STRING:
1067 case MONO_TYPE_OBJECT:
1068 case MONO_TYPE_SZARRAY:
1069 case MONO_TYPE_ARRAY:
1070 return CEE_LDIND_REF;
1073 return CEE_LDIND_I8;
1075 return CEE_LDIND_R4;
1077 return CEE_LDIND_R8;
1078 case MONO_TYPE_VALUETYPE:
1079 if (type->data.klass->enumtype) {
1080 type = mono_class_enum_basetype (type->data.klass);
1084 case MONO_TYPE_TYPEDBYREF:
1086 case MONO_TYPE_GENERICINST:
1087 type = &type->data.generic_class->container_class->byval_arg;
1090 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1096 mono_type_to_stind (MonoType *type)
1102 switch (type->type) {
1105 case MONO_TYPE_BOOLEAN:
1106 return CEE_STIND_I1;
1109 case MONO_TYPE_CHAR:
1110 return CEE_STIND_I2;
1113 return CEE_STIND_I4;
1117 case MONO_TYPE_FNPTR:
1119 case MONO_TYPE_CLASS:
1120 case MONO_TYPE_STRING:
1121 case MONO_TYPE_OBJECT:
1122 case MONO_TYPE_SZARRAY:
1123 case MONO_TYPE_ARRAY:
1124 return CEE_STIND_REF;
1127 return CEE_STIND_I8;
1129 return CEE_STIND_R4;
1131 return CEE_STIND_R8;
1132 case MONO_TYPE_VALUETYPE:
1133 if (type->data.klass->enumtype) {
1134 type = mono_class_enum_basetype (type->data.klass);
1138 case MONO_TYPE_TYPEDBYREF:
1140 case MONO_TYPE_GENERICINST:
1141 type = &type->data.generic_class->container_class->byval_arg;
1144 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1152 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1155 case MONO_MARSHAL_CONV_BOOL_I4:
1156 mono_mb_emit_ldloc (mb, 1);
1157 mono_mb_emit_ldloc (mb, 0);
1158 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1159 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1160 mono_mb_emit_byte (mb, 3);
1161 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1162 mono_mb_emit_byte (mb, CEE_BR_S);
1163 mono_mb_emit_byte (mb, 1);
1164 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1165 mono_mb_emit_byte (mb, CEE_STIND_I1);
1167 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1168 mono_mb_emit_ldloc (mb, 1);
1169 mono_mb_emit_ldloc (mb, 0);
1170 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1171 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1172 mono_mb_emit_byte (mb, 3);
1173 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1174 mono_mb_emit_byte (mb, CEE_BR_S);
1175 mono_mb_emit_byte (mb, 1);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1177 mono_mb_emit_byte (mb, CEE_STIND_I1);
1179 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1180 MonoClass *eklass = NULL;
1183 if (type->type == MONO_TYPE_SZARRAY) {
1184 eklass = type->data.klass;
1186 g_assert_not_reached ();
1189 esize = mono_class_native_size (eklass, NULL);
1191 /* create a new array */
1192 mono_mb_emit_ldloc (mb, 1);
1193 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1194 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1195 mono_mb_emit_byte (mb, CEE_STIND_I);
1197 if (eklass->blittable) {
1198 /* copy the elements */
1199 mono_mb_emit_ldloc (mb, 1);
1200 mono_mb_emit_byte (mb, CEE_LDIND_I);
1201 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1202 mono_mb_emit_byte (mb, CEE_ADD);
1203 mono_mb_emit_ldloc (mb, 0);
1204 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1205 mono_mb_emit_byte (mb, CEE_PREFIX1);
1206 mono_mb_emit_byte (mb, CEE_CPBLK);
1209 int array_var, src_var, dst_var, index_var;
1210 guint32 label2, label3;
1212 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1213 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1214 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 mono_mb_emit_ldloc (mb, 1);
1218 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1219 mono_mb_emit_stloc (mb, array_var);
1221 /* save the old src pointer */
1222 mono_mb_emit_ldloc (mb, 0);
1223 mono_mb_emit_stloc (mb, src_var);
1224 /* save the old dst pointer */
1225 mono_mb_emit_ldloc (mb, 1);
1226 mono_mb_emit_stloc (mb, dst_var);
1228 /* Emit marshalling loop */
1229 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1230 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1231 mono_mb_emit_stloc (mb, index_var);
1234 label2 = mono_mb_get_label (mb);
1235 mono_mb_emit_ldloc (mb, index_var);
1236 mono_mb_emit_ldloc (mb, array_var);
1237 mono_mb_emit_byte (mb, CEE_LDLEN);
1238 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1240 /* src is already set */
1243 mono_mb_emit_ldloc (mb, array_var);
1244 mono_mb_emit_ldloc (mb, index_var);
1245 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1246 mono_mb_emit_stloc (mb, 1);
1248 /* Do the conversion */
1249 emit_struct_conv (mb, eklass, TRUE);
1252 mono_mb_emit_add_to_local (mb, index_var, 1);
1254 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1256 mono_mb_patch_branch (mb, label3);
1258 /* restore the old src pointer */
1259 mono_mb_emit_ldloc (mb, src_var);
1260 mono_mb_emit_stloc (mb, 0);
1261 /* restore the old dst pointer */
1262 mono_mb_emit_ldloc (mb, dst_var);
1263 mono_mb_emit_stloc (mb, 1);
1267 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1268 MonoClass *eclass = mono_defaults.char_class;
1270 /* create a new array */
1271 mono_mb_emit_ldloc (mb, 1);
1272 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1273 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1274 mono_mb_emit_byte (mb, CEE_STIND_REF);
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1278 mono_mb_emit_ldloc (mb, 0);
1279 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1280 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1283 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1284 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1285 mono_mb_emit_ldloc (mb, 1);
1286 mono_mb_emit_ldloc (mb, 0);
1287 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1288 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_ldloc (mb, 0);
1292 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1294 mono_mb_emit_byte (mb, CEE_STIND_REF);
1296 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1297 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1298 mono_mb_emit_ldloc (mb, 1);
1299 mono_mb_emit_ldloc (mb, 0);
1300 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1301 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1303 mono_mb_emit_ldloc (mb, 1);
1304 mono_mb_emit_ldloc (mb, 0);
1305 mono_mb_emit_icall (mb, mono_string_from_utf16);
1307 mono_mb_emit_byte (mb, CEE_STIND_REF);
1309 case MONO_MARSHAL_CONV_STR_LPTSTR:
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_ldloc (mb, 0);
1312 mono_mb_emit_byte (mb, CEE_LDIND_I);
1314 mono_mb_emit_icall (mb, mono_string_from_utf16);
1316 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1318 mono_mb_emit_byte (mb, CEE_STIND_REF);
1320 case MONO_MARSHAL_CONV_STR_LPSTR:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I);
1324 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1325 mono_mb_emit_byte (mb, CEE_STIND_REF);
1327 case MONO_MARSHAL_CONV_STR_LPWSTR:
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_ldloc (mb, 0);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I);
1331 mono_mb_emit_icall (mb, mono_string_from_utf16);
1332 mono_mb_emit_byte (mb, CEE_STIND_REF);
1334 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1335 MonoClass *klass = mono_class_from_mono_type (type);
1336 int src_var, dst_var;
1338 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1339 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1341 /* *dst = new object */
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1344 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1345 mono_mb_emit_byte (mb, CEE_STIND_REF);
1347 /* save the old src pointer */
1348 mono_mb_emit_ldloc (mb, 0);
1349 mono_mb_emit_stloc (mb, src_var);
1350 /* save the old dst pointer */
1351 mono_mb_emit_ldloc (mb, 1);
1352 mono_mb_emit_stloc (mb, dst_var);
1354 /* dst = pointer to newly created object data */
1355 mono_mb_emit_ldloc (mb, 1);
1356 mono_mb_emit_byte (mb, CEE_LDIND_I);
1357 mono_mb_emit_icon (mb, sizeof (MonoObject));
1358 mono_mb_emit_byte (mb, CEE_ADD);
1359 mono_mb_emit_stloc (mb, 1);
1361 emit_struct_conv (mb, klass, TRUE);
1363 /* restore the old src pointer */
1364 mono_mb_emit_ldloc (mb, src_var);
1365 mono_mb_emit_stloc (mb, 0);
1366 /* restore the old dst pointer */
1367 mono_mb_emit_ldloc (mb, dst_var);
1368 mono_mb_emit_stloc (mb, 1);
1371 case MONO_MARSHAL_CONV_DEL_FTN: {
1372 MonoClass *klass = mono_class_from_mono_type (type);
1374 mono_mb_emit_ldloc (mb, 1);
1375 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1376 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_byte (mb, CEE_LDIND_I);
1379 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1380 mono_mb_emit_byte (mb, CEE_STIND_REF);
1383 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1384 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1388 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1389 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1390 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1391 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1393 #endif /* DISABLE_COM */
1395 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1397 * Passing SafeHandles as ref does not allow the unmanaged code
1398 * to change the SafeHandle value. If the value is changed,
1399 * we should issue a diagnostic exception (NotSupportedException)
1400 * that informs the user that changes to handles in unmanaged code
1403 * Since we currently have no access to the original
1404 * SafeHandle that was used during the marshalling,
1405 * for now we just ignore this, and ignore/discard any
1406 * changes that might have happened to the handle.
1411 case MONO_MARSHAL_CONV_HANDLEREF: {
1413 * Passing HandleRefs in a struct that is ref()ed does not
1414 * copy the values back to the HandleRef
1419 case MONO_MARSHAL_CONV_STR_BSTR:
1420 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1421 case MONO_MARSHAL_CONV_STR_TBSTR:
1422 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1424 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1426 mono_mb_emit_exception_marshal_directive (mb, msg);
1433 conv_to_icall (MonoMarshalConv conv)
1436 case MONO_MARSHAL_CONV_STR_LPWSTR:
1437 return mono_marshal_string_to_utf16;
1438 case MONO_MARSHAL_CONV_LPWSTR_STR:
1439 return mono_string_from_utf16;
1440 case MONO_MARSHAL_CONV_LPTSTR_STR:
1441 return mono_string_new_wrapper;
1442 case MONO_MARSHAL_CONV_LPSTR_STR:
1443 return mono_string_new_wrapper;
1444 case MONO_MARSHAL_CONV_STR_LPTSTR:
1446 return mono_marshal_string_to_utf16;
1448 return mono_string_to_lpstr;
1450 case MONO_MARSHAL_CONV_STR_LPSTR:
1451 return mono_string_to_lpstr;
1452 case MONO_MARSHAL_CONV_STR_BSTR:
1453 return mono_string_to_bstr;
1454 case MONO_MARSHAL_CONV_BSTR_STR:
1455 return mono_string_from_bstr;
1456 case MONO_MARSHAL_CONV_STR_TBSTR:
1457 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1458 return mono_string_to_ansibstr;
1459 case MONO_MARSHAL_CONV_SB_LPSTR:
1460 return mono_string_builder_to_utf8;
1461 case MONO_MARSHAL_CONV_SB_LPTSTR:
1463 return mono_string_builder_to_utf16;
1465 return mono_string_builder_to_utf8;
1467 case MONO_MARSHAL_CONV_SB_LPWSTR:
1468 return mono_string_builder_to_utf16;
1469 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1470 return mono_array_to_savearray;
1471 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1472 return mono_array_to_lparray;
1473 case MONO_MARSHAL_FREE_LPARRAY:
1474 return mono_free_lparray;
1475 case MONO_MARSHAL_CONV_DEL_FTN:
1476 return mono_delegate_to_ftnptr;
1477 case MONO_MARSHAL_CONV_FTN_DEL:
1478 return mono_ftnptr_to_delegate;
1479 case MONO_MARSHAL_CONV_LPSTR_SB:
1480 return mono_string_utf8_to_builder;
1481 case MONO_MARSHAL_CONV_LPTSTR_SB:
1483 return mono_string_utf16_to_builder;
1485 return mono_string_utf8_to_builder;
1487 case MONO_MARSHAL_CONV_LPWSTR_SB:
1488 return mono_string_utf16_to_builder;
1489 case MONO_MARSHAL_FREE_ARRAY:
1490 return mono_marshal_free_array;
1491 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1492 return mono_string_to_byvalstr;
1493 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1494 return mono_string_to_byvalwstr;
1496 g_assert_not_reached ();
1503 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1508 case MONO_MARSHAL_CONV_BOOL_I4:
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_ldloc (mb, 0);
1511 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1512 mono_mb_emit_byte (mb, CEE_STIND_I4);
1514 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1515 mono_mb_emit_ldloc (mb, 1);
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1518 mono_mb_emit_byte (mb, CEE_NEG);
1519 mono_mb_emit_byte (mb, CEE_STIND_I2);
1521 case MONO_MARSHAL_CONV_STR_LPWSTR:
1522 case MONO_MARSHAL_CONV_STR_LPSTR:
1523 case MONO_MARSHAL_CONV_STR_LPTSTR:
1524 case MONO_MARSHAL_CONV_STR_BSTR:
1525 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1526 case MONO_MARSHAL_CONV_STR_TBSTR: {
1529 /* free space if free == true */
1530 mono_mb_emit_ldloc (mb, 2);
1531 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_icall (mb, g_free);
1535 mono_mb_patch_short_branch (mb, pos);
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1540 mono_mb_emit_icall (mb, conv_to_icall (conv));
1541 mono_mb_emit_byte (mb, CEE_STIND_I);
1544 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1545 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1546 case MONO_MARSHAL_CONV_DEL_FTN:
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1550 mono_mb_emit_icall (mb, conv_to_icall (conv));
1551 mono_mb_emit_byte (mb, CEE_STIND_I);
1553 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1554 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1557 mono_mb_emit_ldloc (mb, 1); /* dst */
1558 mono_mb_emit_ldloc (mb, 0);
1559 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1560 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1561 mono_mb_emit_icall (mb, conv_to_icall (conv));
1564 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1565 MonoClass *eklass = NULL;
1568 if (type->type == MONO_TYPE_SZARRAY) {
1569 eklass = type->data.klass;
1571 g_assert_not_reached ();
1574 if (eklass->valuetype)
1575 esize = mono_class_native_size (eklass, NULL);
1577 esize = sizeof (gpointer);
1579 mono_mb_emit_ldloc (mb, 0);
1580 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1581 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1583 if (eklass->blittable) {
1584 mono_mb_emit_ldloc (mb, 1);
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1588 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1589 mono_mb_emit_byte (mb, CEE_PREFIX1);
1590 mono_mb_emit_byte (mb, CEE_CPBLK);
1592 int array_var, src_var, dst_var, index_var;
1593 guint32 label2, label3;
1595 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1596 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1597 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1600 mono_mb_emit_ldloc (mb, 0);
1601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1602 mono_mb_emit_stloc (mb, array_var);
1604 /* save the old src pointer */
1605 mono_mb_emit_ldloc (mb, 0);
1606 mono_mb_emit_stloc (mb, src_var);
1607 /* save the old dst pointer */
1608 mono_mb_emit_ldloc (mb, 1);
1609 mono_mb_emit_stloc (mb, dst_var);
1611 /* Emit marshalling loop */
1612 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1613 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1614 mono_mb_emit_stloc (mb, index_var);
1617 label2 = mono_mb_get_label (mb);
1618 mono_mb_emit_ldloc (mb, index_var);
1619 mono_mb_emit_ldloc (mb, array_var);
1620 mono_mb_emit_byte (mb, CEE_LDLEN);
1621 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1624 mono_mb_emit_ldloc (mb, array_var);
1625 mono_mb_emit_ldloc (mb, index_var);
1626 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1627 mono_mb_emit_stloc (mb, 0);
1629 /* dst is already set */
1631 /* Do the conversion */
1632 emit_struct_conv (mb, eklass, FALSE);
1635 mono_mb_emit_add_to_local (mb, index_var, 1);
1637 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1639 mono_mb_patch_branch (mb, label3);
1641 /* restore the old src pointer */
1642 mono_mb_emit_ldloc (mb, src_var);
1643 mono_mb_emit_stloc (mb, 0);
1644 /* restore the old dst pointer */
1645 mono_mb_emit_ldloc (mb, dst_var);
1646 mono_mb_emit_stloc (mb, 1);
1649 mono_mb_patch_branch (mb, pos);
1652 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1653 mono_mb_emit_ldloc (mb, 0);
1654 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1655 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1661 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1662 mono_mb_patch_short_branch (mb, pos);
1665 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1666 int src_var, dst_var;
1668 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1669 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1671 mono_mb_emit_ldloc (mb, 0);
1672 mono_mb_emit_byte (mb, CEE_LDIND_I);
1673 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1675 /* save the old src pointer */
1676 mono_mb_emit_ldloc (mb, 0);
1677 mono_mb_emit_stloc (mb, src_var);
1678 /* save the old dst pointer */
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_stloc (mb, dst_var);
1682 /* src = pointer to object data */
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_byte (mb, CEE_LDIND_I);
1685 mono_mb_emit_icon (mb, sizeof (MonoObject));
1686 mono_mb_emit_byte (mb, CEE_ADD);
1687 mono_mb_emit_stloc (mb, 0);
1689 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1691 /* restore the old src pointer */
1692 mono_mb_emit_ldloc (mb, src_var);
1693 mono_mb_emit_stloc (mb, 0);
1694 /* restore the old dst pointer */
1695 mono_mb_emit_ldloc (mb, dst_var);
1696 mono_mb_emit_stloc (mb, 1);
1698 mono_mb_patch_branch (mb, pos);
1703 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1704 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1705 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1706 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1708 #endif /* DISABLE_COM */
1710 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1711 int dar_release_slot, pos;
1713 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1716 * The following is ifdefed-out, because I have no way of doing the
1717 * DangerousRelease when destroying the structure
1720 /* set release = false */
1721 mono_mb_emit_icon (mb, 0);
1722 mono_mb_emit_stloc (mb, dar_release_slot);
1723 if (!sh_dangerous_add_ref)
1724 init_safe_handle ();
1726 /* safehandle.DangerousAddRef (ref release) */
1727 mono_mb_emit_ldloc (mb, 0); /* the source */
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1730 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_I);
1734 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1735 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1736 mono_mb_patch_branch (mb, pos);
1738 /* Pull the handle field from SafeHandle */
1739 mono_mb_emit_ldloc (mb, 1);
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_I);
1742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1743 mono_mb_emit_byte (mb, CEE_LDIND_I);
1744 mono_mb_emit_byte (mb, CEE_STIND_I);
1748 case MONO_MARSHAL_CONV_HANDLEREF: {
1749 mono_mb_emit_ldloc (mb, 1);
1750 mono_mb_emit_ldloc (mb, 0);
1751 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1752 mono_mb_emit_byte (mb, CEE_ADD);
1753 mono_mb_emit_byte (mb, CEE_LDIND_I);
1754 mono_mb_emit_byte (mb, CEE_STIND_I);
1759 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1760 MonoException *exc = mono_get_exception_not_implemented (msg);
1761 g_warning ("%s", msg);
1763 mono_raise_exception (exc);
1769 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1770 MonoMarshalNative string_encoding)
1772 MonoMarshalType *info;
1776 emit_struct_conv(mb, klass->parent, to_object);
1778 info = mono_marshal_load_type_info (klass);
1780 if (info->native_size == 0)
1783 if (klass->blittable) {
1784 int msize = mono_class_value_size (klass, NULL);
1785 g_assert (msize == info->native_size);
1786 mono_mb_emit_ldloc (mb, 1);
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_icon (mb, msize);
1789 mono_mb_emit_byte (mb, CEE_PREFIX1);
1790 mono_mb_emit_byte (mb, CEE_CPBLK);
1792 mono_mb_emit_add_to_local (mb, 0, msize);
1793 mono_mb_emit_add_to_local (mb, 1, msize);
1797 if (klass != mono_defaults.safehandle_class) {
1798 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1799 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1800 mono_type_full_name (&klass->byval_arg));
1801 mono_mb_emit_exception_marshal_directive (mb, msg);
1806 for (i = 0; i < info->num_fields; i++) {
1807 MonoMarshalNative ntype;
1808 MonoMarshalConv conv;
1809 MonoType *ftype = info->fields [i].field->type;
1812 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1814 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1817 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1820 msize = klass->instance_size - info->fields [i].field->offset;
1821 usize = info->native_size - info->fields [i].offset;
1823 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1824 usize = info->fields [i + 1].offset - info->fields [i].offset;
1827 if (klass != mono_defaults.safehandle_class){
1829 * FIXME: Should really check for usize==0 and msize>0, but we apply
1830 * the layout to the managed structure as well.
1833 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1834 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1835 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1836 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1837 "reference field at the same offset as another field.",
1838 mono_type_full_name (&klass->byval_arg));
1843 case MONO_MARSHAL_CONV_NONE: {
1846 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1847 ftype->type == MONO_TYPE_U) {
1848 mono_mb_emit_ldloc (mb, 1);
1849 mono_mb_emit_ldloc (mb, 0);
1850 mono_mb_emit_byte (mb, CEE_LDIND_I);
1851 mono_mb_emit_byte (mb, CEE_STIND_I);
1862 case MONO_TYPE_BOOLEAN:
1865 case MONO_TYPE_CHAR:
1871 mono_mb_emit_ldloc (mb, 1);
1872 mono_mb_emit_ldloc (mb, 0);
1873 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1875 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1876 mono_mb_emit_byte (mb, CEE_STIND_I2);
1878 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1879 mono_mb_emit_byte (mb, CEE_STIND_I1);
1882 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1883 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1886 case MONO_TYPE_VALUETYPE: {
1887 int src_var, dst_var;
1889 if (ftype->data.klass->enumtype) {
1890 ftype = mono_class_enum_basetype (ftype->data.klass);
1894 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1895 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1897 /* save the old src pointer */
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_stloc (mb, src_var);
1900 /* save the old dst pointer */
1901 mono_mb_emit_ldloc (mb, 1);
1902 mono_mb_emit_stloc (mb, dst_var);
1904 emit_struct_conv (mb, ftype->data.klass, to_object);
1906 /* restore the old src pointer */
1907 mono_mb_emit_ldloc (mb, src_var);
1908 mono_mb_emit_stloc (mb, 0);
1909 /* restore the old dst pointer */
1910 mono_mb_emit_ldloc (mb, dst_var);
1911 mono_mb_emit_stloc (mb, 1);
1914 case MONO_TYPE_OBJECT: {
1917 static MonoMethod *variant_clear = NULL;
1918 static MonoMethod *get_object_for_native_variant = NULL;
1921 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1922 if (!get_object_for_native_variant)
1923 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1924 mono_mb_emit_ldloc (mb, 1);
1925 mono_mb_emit_ldloc (mb, 0);
1926 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1927 mono_mb_emit_byte (mb, CEE_STIND_REF);
1929 mono_mb_emit_ldloc (mb, 0);
1930 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1933 static MonoMethod *get_native_variant_for_object = NULL;
1935 if (!get_native_variant_for_object)
1936 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1940 mono_mb_emit_ldloc (mb, 1);
1941 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1944 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1945 mono_mb_emit_exception_marshal_directive (mb, msg);
1951 g_warning ("marshaling type %02x not implemented", ftype->type);
1952 g_assert_not_reached ();
1957 int src_var, dst_var;
1959 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1960 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1962 /* save the old src pointer */
1963 mono_mb_emit_ldloc (mb, 0);
1964 mono_mb_emit_stloc (mb, src_var);
1965 /* save the old dst pointer */
1966 mono_mb_emit_ldloc (mb, 1);
1967 mono_mb_emit_stloc (mb, dst_var);
1970 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1972 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1974 /* restore the old src pointer */
1975 mono_mb_emit_ldloc (mb, src_var);
1976 mono_mb_emit_stloc (mb, 0);
1977 /* restore the old dst pointer */
1978 mono_mb_emit_ldloc (mb, dst_var);
1979 mono_mb_emit_stloc (mb, 1);
1984 mono_mb_emit_add_to_local (mb, 0, usize);
1985 mono_mb_emit_add_to_local (mb, 1, msize);
1987 mono_mb_emit_add_to_local (mb, 0, msize);
1988 mono_mb_emit_add_to_local (mb, 1, usize);
1994 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1996 emit_struct_conv_full (mb, klass, to_object, -1);
2000 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2002 /* Call DestroyStructure */
2003 /* FIXME: Only do this if needed */
2004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2005 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2006 mono_mb_emit_ldloc (mb, struct_var);
2007 mono_mb_emit_icall (mb, mono_struct_delete_old);
2011 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2015 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2016 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2017 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2019 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2020 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2022 mono_mb_emit_icall (mb, checkpoint_func);
2024 mono_mb_patch_branch (mb, pos_noabort);
2028 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2030 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2033 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2037 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2039 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2043 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2045 emit_thread_interrupt_checkpoint (mb);
2049 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2051 emit_thread_force_interrupt_checkpoint (mb);
2054 #endif /* DISABLE_JIT */
2056 static MonoAsyncResult *
2057 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2059 MonoMethodMessage *msg;
2060 MonoDelegate *async_callback;
2061 MonoMulticastDelegate *mcast_delegate;
2065 MonoMethod *method = NULL, *method2 = NULL;
2067 g_assert (delegate);
2068 mcast_delegate = (MonoMulticastDelegate *) delegate;
2069 if (mcast_delegate->prev != NULL)
2070 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2072 #ifndef DISABLE_REMOTING
2073 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2075 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2076 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2078 /* If the target is a proxy, make a direct call. Is proxy's work
2079 // to make the call asynchronous.
2081 MonoAsyncResult *ares;
2083 MonoArray *out_args;
2084 method = delegate->method;
2086 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2087 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2088 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2089 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2090 MONO_OBJECT_SETREF (msg, async_result, ares);
2091 msg->call_type = CallType_BeginInvoke;
2094 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2096 mono_raise_exception ((MonoException *) exc);
2102 klass = delegate->object.vtable->klass;
2104 method = mono_get_delegate_invoke (klass);
2105 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2108 g_assert (method != NULL);
2110 im = mono_get_delegate_invoke (method->klass);
2111 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2113 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2119 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2121 int i, params_var, tmp_var;
2123 /* allocate local (pointer) *params[] */
2124 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2125 /* allocate local (pointer) tmp */
2126 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2128 /* alloate space on stack to store an array of pointers to the arguments */
2129 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2130 mono_mb_emit_byte (mb, CEE_PREFIX1);
2131 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2132 mono_mb_emit_stloc (mb, params_var);
2135 mono_mb_emit_ldloc (mb, params_var);
2136 mono_mb_emit_stloc (mb, tmp_var);
2138 if (save_this && sig->hasthis) {
2139 mono_mb_emit_ldloc (mb, tmp_var);
2140 mono_mb_emit_ldarg_addr (mb, 0);
2141 mono_mb_emit_byte (mb, CEE_STIND_I);
2142 /* tmp = tmp + sizeof (gpointer) */
2143 if (sig->param_count)
2144 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2148 for (i = 0; i < sig->param_count; i++) {
2149 mono_mb_emit_ldloc (mb, tmp_var);
2150 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2151 mono_mb_emit_byte (mb, CEE_STIND_I);
2152 /* tmp = tmp + sizeof (gpointer) */
2153 if (i < (sig->param_count - 1))
2154 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2160 #endif /* DISABLE_JIT */
2163 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2167 GString *res = g_string_new ("");
2170 g_string_append (res, prefix);
2171 g_string_append_c (res, '_');
2174 mono_type_get_desc (res, sig->ret, FALSE);
2177 g_string_append (res, "__this__");
2179 for (i = 0; i < sig->param_count; ++i) {
2180 g_string_append_c (res, '_');
2181 mono_type_get_desc (res, sig->params [i], FALSE);
2184 g_string_free (res, FALSE);
2189 * mono_marshal_get_string_encoding:
2191 * Return the string encoding which should be used for a given parameter.
2193 static MonoMarshalNative
2194 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2196 /* First try the parameter marshal info */
2198 if (spec->native == MONO_NATIVE_LPARRAY) {
2199 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2200 return spec->data.array_data.elem_type;
2203 return spec->native;
2207 return MONO_NATIVE_LPSTR;
2209 /* Then try the method level marshal info */
2210 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2211 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2212 return MONO_NATIVE_LPSTR;
2213 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2214 return MONO_NATIVE_LPWSTR;
2215 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2217 return MONO_NATIVE_LPWSTR;
2219 return MONO_NATIVE_LPSTR;
2222 return MONO_NATIVE_LPSTR;
2226 static MonoMarshalConv
2227 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2229 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2232 case MONO_NATIVE_LPWSTR:
2233 return MONO_MARSHAL_CONV_STR_LPWSTR;
2234 case MONO_NATIVE_LPSTR:
2235 case MONO_NATIVE_VBBYREFSTR:
2236 return MONO_MARSHAL_CONV_STR_LPSTR;
2237 case MONO_NATIVE_LPTSTR:
2238 return MONO_MARSHAL_CONV_STR_LPTSTR;
2239 case MONO_NATIVE_BSTR:
2240 return MONO_MARSHAL_CONV_STR_BSTR;
2246 static MonoMarshalConv
2247 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2249 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2252 case MONO_NATIVE_LPWSTR:
2253 return MONO_MARSHAL_CONV_SB_LPWSTR;
2255 case MONO_NATIVE_LPSTR:
2256 return MONO_MARSHAL_CONV_SB_LPSTR;
2258 case MONO_NATIVE_LPTSTR:
2259 return MONO_MARSHAL_CONV_SB_LPTSTR;
2266 static MonoMarshalConv
2267 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2269 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2274 case MONO_NATIVE_LPWSTR:
2276 return MONO_MARSHAL_CONV_LPWSTR_STR;
2277 case MONO_NATIVE_LPSTR:
2278 case MONO_NATIVE_VBBYREFSTR:
2279 return MONO_MARSHAL_CONV_LPSTR_STR;
2280 case MONO_NATIVE_LPTSTR:
2281 return MONO_MARSHAL_CONV_LPTSTR_STR;
2282 case MONO_NATIVE_BSTR:
2283 return MONO_MARSHAL_CONV_BSTR_STR;
2289 static MonoMarshalConv
2290 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2292 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2297 case MONO_NATIVE_LPWSTR:
2299 * mono_string_builder_to_utf16 does not allocate a
2300 * new buffer, so no need to free it.
2303 return MONO_MARSHAL_CONV_LPWSTR_SB;
2304 case MONO_NATIVE_LPSTR:
2305 return MONO_MARSHAL_CONV_LPSTR_SB;
2307 case MONO_NATIVE_LPTSTR:
2308 return MONO_MARSHAL_CONV_LPTSTR_SB;
2316 * Return whenever a field of a native structure or an array member needs to
2320 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2322 MonoMarshalNative encoding;
2323 MonoMarshalConv conv;
2326 case MONO_TYPE_VALUETYPE:
2327 /* FIXME: Optimize this */
2329 case MONO_TYPE_OBJECT:
2330 case MONO_TYPE_CLASS:
2331 if (t->data.klass == mono_defaults.stringbuilder_class) {
2333 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2337 case MONO_TYPE_STRING:
2338 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2339 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2346 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2349 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2352 mono_marshal_lock ();
2355 g_hash_table_new (hash_func, equal_func);
2356 mono_memory_barrier ();
2359 mono_marshal_unlock ();
2365 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2367 return get_cache (var, hash_func, equal_func);
2371 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2375 mono_marshal_lock ();
2376 res = g_hash_table_lookup (cache, key);
2377 mono_marshal_unlock ();
2384 * Create a MonoMethod from MB, set INFO as wrapper info.
2387 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2388 int max_stack, WrapperInfo *info)
2392 res = mono_mb_create_method (mb, sig, max_stack);
2394 mono_marshal_set_wrapper_info (res, info);
2398 /* Create the method from the builder and place it in the cache */
2400 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2401 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2402 int max_stack, WrapperInfo *info, gboolean *out_found)
2409 mono_marshal_lock ();
2410 res = g_hash_table_lookup (cache, key);
2411 mono_marshal_unlock ();
2414 newm = mono_mb_create_method (mb, sig, max_stack);
2415 mono_marshal_lock ();
2416 res = g_hash_table_lookup (cache, key);
2419 g_hash_table_insert (cache, key, res);
2421 mono_marshal_set_wrapper_info (res, info);
2423 mono_marshal_set_wrapper_info (res, key);
2424 mono_marshal_unlock ();
2428 mono_marshal_unlock ();
2429 mono_free_method (newm);
2437 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2438 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2441 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2445 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2448 int wrapper_type = wrapper->wrapper_type;
2451 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2454 switch (wrapper_type) {
2455 case MONO_WRAPPER_REMOTING_INVOKE:
2456 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2457 case MONO_WRAPPER_XDOMAIN_INVOKE:
2458 case MONO_WRAPPER_SYNCHRONIZED:
2459 case MONO_WRAPPER_UNBOX:
2460 res = mono_marshal_get_wrapper_info (wrapper);
2463 if (wrapper->is_inflated)
2465 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2466 * contains an uninflated method.
2468 return mono_class_inflate_generic_method (res, mono_method_get_context (wrapper));
2471 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2472 info = mono_marshal_get_wrapper_info (wrapper);
2473 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2474 return info->d.managed_to_native.method;
2477 case MONO_WRAPPER_RUNTIME_INVOKE:
2478 info = mono_marshal_get_wrapper_info (wrapper);
2479 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2480 return info->d.runtime_invoke.method;
2489 * mono_marshal_get_wrapper_info:
2491 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2492 * returned depends on the wrapper type. It is usually a method, a class, or a
2493 * WrapperInfo structure.
2496 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2498 g_assert (wrapper->wrapper_type);
2500 return mono_method_get_wrapper_data (wrapper, 1);
2504 * mono_marshal_set_wrapper_info:
2506 * Store an arbitrary pointer inside the wrapper which is retrievable by
2507 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2508 * wrapper (method->wrapper_type).
2511 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2515 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2518 datav = ((MonoMethodWrapper *)method)->method_data;
2523 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2527 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2528 info->subtype = subtype;
2533 * get_wrapper_target_class:
2535 * Return the class where a wrapper method should be placed.
2538 get_wrapper_target_class (MonoImage *image)
2545 * - can't put all wrappers into an mscorlib class, because they reference
2546 * metadata (signature) so they should be put into the same image as the
2547 * method they wrap, so they are unloaded together.
2548 * - putting them into a class with a type initalizer could cause the
2549 * initializer to be executed which can be a problem if the wrappers are
2551 * - putting them into an inflated class can cause problems if the the
2552 * class is deleted because it references an image which is unloaded.
2553 * To avoid these problems, we put the wrappers into the <Module> class of
2556 if (image_is_dynamic (image)) {
2557 klass = ((MonoDynamicImage*)image)->wrappers_type;
2559 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2560 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2568 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2569 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2573 * check_generic_wrapper_cache:
2575 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2576 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2577 * generic method definition.
2580 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2583 MonoMethod *inst, *def;
2584 MonoGenericContext *ctx;
2585 MonoMethod *def_method;
2587 g_assert (orig_method->is_inflated);
2588 def_method = ((MonoMethodInflated*)orig_method)->declaring;
2589 ctx = mono_method_get_context (orig_method);
2592 * Look for the instance
2594 res = mono_marshal_find_in_cache (cache, key);
2599 * Look for the definition
2601 def = mono_marshal_find_in_cache (cache, def_key);
2603 inst = mono_class_inflate_generic_method (def, ctx);
2605 mono_memory_barrier ();
2606 mono_marshal_lock ();
2607 res = g_hash_table_lookup (cache, key);
2609 g_hash_table_insert (cache, key, inst);
2612 mono_marshal_unlock ();
2619 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2621 MonoMethod *inst, *res;
2624 * We use the same cache for the generic definition and the instances.
2626 inst = mono_class_inflate_generic_method (def, ctx);
2627 mono_memory_barrier ();
2628 mono_marshal_lock ();
2629 res = g_hash_table_lookup (cache, key);
2631 g_hash_table_insert (cache, key, inst);
2634 mono_marshal_unlock ();
2639 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2642 MonoMethod *inst, *def;
2645 * Look for the instance
2647 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2652 * Look for the definition
2654 def = mono_marshal_find_in_cache (cache, def_method->klass);
2656 inst = mono_class_inflate_generic_method (def, ctx);
2658 mono_memory_barrier ();
2659 mono_marshal_lock ();
2660 res = g_hash_table_lookup (cache, orig_method->klass);
2662 g_hash_table_insert (cache, orig_method->klass, inst);
2665 mono_marshal_unlock ();
2672 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2674 MonoMethod *inst, *res;
2677 * We use the same cache for the generic definition and the instances.
2679 inst = mono_class_inflate_generic_method (def, ctx);
2680 mono_memory_barrier ();
2681 mono_marshal_lock ();
2682 res = g_hash_table_lookup (cache, orig_method->klass);
2684 g_hash_table_insert (cache, orig_method->klass, inst);
2687 mono_marshal_unlock ();
2692 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2694 MonoMethodSignature *sig;
2695 MonoMethodBuilder *mb;
2700 MonoGenericContext *ctx = NULL;
2701 MonoMethod *orig_method = NULL;
2703 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2704 !strcmp (method->name, "BeginInvoke"));
2707 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2709 if (method->is_inflated) {
2710 orig_method = method;
2711 ctx = &((MonoMethodInflated*)method)->context;
2712 method = ((MonoMethodInflated*)method)->declaring;
2715 sig = mono_signature_no_pinvoke (method);
2721 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2722 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2726 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2727 (GHashFunc)mono_signature_hash,
2728 (GCompareFunc)mono_metadata_signature_equal);
2729 if ((res = mono_marshal_find_in_cache (cache, sig)))
2733 g_assert (sig->hasthis);
2735 name = mono_signature_to_name (sig, "begin_invoke");
2737 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2739 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2743 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2745 mono_mb_emit_ldarg (mb, 0);
2746 mono_mb_emit_ldloc (mb, params_var);
2747 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2748 mono_mb_emit_byte (mb, CEE_RET);
2753 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2754 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2756 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2764 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2766 MonoDomain *domain = mono_domain_get ();
2767 MonoAsyncResult *ares;
2768 MonoMethod *method = NULL;
2769 MonoMethodSignature *sig;
2770 MonoMethodMessage *msg;
2771 MonoObject *res, *exc;
2772 MonoArray *out_args;
2775 g_assert (delegate);
2777 if (!delegate->method_info) {
2778 g_assert (delegate->method);
2779 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2782 if (!delegate->method_info || !delegate->method_info->method)
2783 g_assert_not_reached ();
2785 klass = delegate->object.vtable->klass;
2787 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2788 g_assert (method != NULL);
2790 sig = mono_signature_no_pinvoke (method);
2792 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2794 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2796 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."));
2800 if (ares->async_delegate != (MonoObject*)delegate) {
2801 mono_raise_exception (mono_get_exception_invalid_operation (
2802 "The IAsyncResult object provided does not match this delegate."));
2806 #ifndef DISABLE_REMOTING
2807 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2808 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2809 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2810 mono_message_init (domain, msg, delegate->method_info, NULL);
2811 msg->call_type = CallType_EndInvoke;
2812 MONO_OBJECT_SETREF (msg, async_result, ares);
2813 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2817 res = mono_thread_pool_finish (ares, &out_args, &exc);
2821 if (((MonoException*)exc)->stack_trace) {
2822 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2824 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2826 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2829 mono_raise_exception ((MonoException*)exc);
2832 mono_method_return_message_restore (method, params, out_args);
2839 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2841 MonoType *t = mono_type_get_underlying_type (return_type);
2843 if (return_type->byref)
2844 return_type = &mono_defaults.int_class->byval_arg;
2847 case MONO_TYPE_VOID:
2848 g_assert_not_reached ();
2851 case MONO_TYPE_STRING:
2852 case MONO_TYPE_CLASS:
2853 case MONO_TYPE_OBJECT:
2854 case MONO_TYPE_ARRAY:
2855 case MONO_TYPE_SZARRAY:
2859 case MONO_TYPE_BOOLEAN:
2862 case MONO_TYPE_CHAR:
2872 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2873 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2875 case MONO_TYPE_GENERICINST:
2876 if (!mono_type_generic_inst_is_valuetype (t))
2879 case MONO_TYPE_VALUETYPE: {
2880 MonoClass *klass = mono_class_from_mono_type (return_type);
2881 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2882 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2886 case MONO_TYPE_MVAR: {
2887 MonoClass *klass = mono_class_from_mono_type (return_type);
2888 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2892 g_warning ("type 0x%x not handled", return_type->type);
2893 g_assert_not_reached ();
2896 mono_mb_emit_byte (mb, CEE_RET);
2899 #endif /* DISABLE_JIT */
2902 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2904 MonoMethodSignature *sig;
2905 MonoMethodBuilder *mb;
2910 MonoGenericContext *ctx = NULL;
2911 MonoMethod *orig_method = NULL;
2913 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2914 !strcmp (method->name, "EndInvoke"));
2917 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2919 if (method->is_inflated) {
2920 orig_method = method;
2921 ctx = &((MonoMethodInflated*)method)->context;
2922 method = ((MonoMethodInflated*)method)->declaring;
2925 sig = mono_signature_no_pinvoke (method);
2931 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2932 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2936 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2937 (GHashFunc)mono_signature_hash,
2938 (GCompareFunc)mono_metadata_signature_equal);
2939 if ((res = mono_marshal_find_in_cache (cache, sig)))
2943 g_assert (sig->hasthis);
2945 name = mono_signature_to_name (sig, "end_invoke");
2947 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2949 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2953 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2955 mono_mb_emit_ldarg (mb, 0);
2956 mono_mb_emit_ldloc (mb, params_var);
2957 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2959 if (sig->ret->type == MONO_TYPE_VOID) {
2960 mono_mb_emit_byte (mb, CEE_POP);
2961 mono_mb_emit_byte (mb, CEE_RET);
2963 mono_mb_emit_restore_result (mb, sig->ret);
2968 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2969 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2971 res = mono_mb_create_and_cache (cache, sig,
2972 mb, sig, sig->param_count + 16);
2981 MonoMethodSignature *sig;
2983 } SignatureMethodPair;
2986 signature_method_pair_hash (gconstpointer data)
2988 SignatureMethodPair *pair = (SignatureMethodPair*)data;
2990 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
2994 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
2996 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3000 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3002 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3003 MonoMethod *method = (MonoMethod*)user_data;
3005 return pair->method == method;
3009 free_signature_method_pair (SignatureMethodPair *pair)
3015 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3017 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3019 MonoMethodBuilder *mb;
3022 gpointer cache_key = NULL;
3023 SignatureMethodPair key;
3024 SignatureMethodPair *new_key;
3025 int local_prev, local_target;
3028 MonoClass *target_class = NULL;
3029 gboolean closed_over_null = FALSE;
3030 MonoGenericContext *ctx = NULL;
3031 MonoGenericContainer *container = NULL;
3032 MonoMethod *orig_method = NULL;
3034 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3037 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3038 !strcmp (method->name, "Invoke"));
3040 invoke_sig = sig = mono_signature_no_pinvoke (method);
3043 * If the delegate target is null, and the target method is not static, a virtual
3044 * call is made to that method with the first delegate argument as this. This is
3045 * a non-documented .NET feature.
3048 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3049 if (target_method->is_inflated) {
3050 MonoType *target_type;
3052 g_assert (method->signature->hasthis);
3053 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3054 mono_method_get_context (method));
3055 target_class = mono_class_from_mono_type (target_type);
3057 target_class = target_method->klass;
3060 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3063 if (static_method_with_first_arg_bound) {
3064 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3065 g_assert (!callvirt);
3066 invoke_sig = mono_method_signature (target_method);
3070 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3072 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3073 orig_method = method;
3074 ctx = &((MonoMethodInflated*)method)->context;
3075 method = ((MonoMethodInflated*)method)->declaring;
3077 container = mono_method_get_generic_container (method);
3079 container = method->klass->generic_container;
3080 g_assert (container);
3082 invoke_sig = sig = mono_signature_no_pinvoke (method);
3089 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3090 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3093 cache_key = method->klass;
3094 } else if (static_method_with_first_arg_bound) {
3095 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3096 (GHashFunc)mono_signature_hash,
3097 (GCompareFunc)mono_metadata_signature_equal);
3099 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3101 res = mono_marshal_find_in_cache (cache, invoke_sig);
3104 cache_key = invoke_sig;
3105 } else if (callvirt) {
3106 GHashTable **cache_ptr;
3108 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3110 /* We need to cache the signature+method pair */
3111 mono_marshal_lock ();
3113 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3115 key.sig = invoke_sig;
3116 key.method = target_method;
3117 res = g_hash_table_lookup (cache, &key);
3118 mono_marshal_unlock ();
3122 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3123 (GHashFunc)mono_signature_hash,
3124 (GCompareFunc)mono_metadata_signature_equal);
3125 res = mono_marshal_find_in_cache (cache, sig);
3131 static_sig = signature_dup (method->klass->image, sig);
3132 static_sig->hasthis = 0;
3133 if (!static_method_with_first_arg_bound)
3134 invoke_sig = static_sig;
3136 if (static_method_with_first_arg_bound)
3137 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3138 else if (closed_over_null)
3139 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3141 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3143 name = mono_signature_to_name (invoke_sig, "invoke");
3145 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3147 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3151 /* allocate local 0 (object) */
3152 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3153 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3155 g_assert (sig->hasthis);
3159 * prev.Invoke( args .. );
3160 * return this.<target>( args .. );
3163 /* this wrapper can be used in unmanaged-managed transitions */
3164 emit_thread_interrupt_checkpoint (mb);
3166 /* get this->prev */
3167 mono_mb_emit_ldarg (mb, 0);
3168 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3169 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3170 mono_mb_emit_stloc (mb, local_prev);
3171 mono_mb_emit_ldloc (mb, local_prev);
3173 /* if prev != null */
3174 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3178 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3179 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3181 mono_mb_emit_ldloc (mb, local_prev);
3182 for (i = 0; i < sig->param_count; i++)
3183 mono_mb_emit_ldarg (mb, i + 1);
3185 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method (method, &container->context));
3187 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 (SignatureMethodPair, 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 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4163 if (!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 (ICustomMarshaler, "CleanUpNativeData", 1);
4169 g_assert (cleanup_native);
4170 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
4171 g_assert (cleanup_managed);
4172 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
4173 g_assert (marshal_managed_to_native);
4174 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
4175 g_assert (marshal_native_to_managed);
4178 if (spec->data.custom_data.image)
4179 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4181 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4182 g_assert (mtype != NULL);
4183 mklass = mono_class_from_mono_type (mtype);
4184 g_assert (mklass != NULL);
4186 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4187 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4189 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4191 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4192 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4193 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4194 (get_sig->params [0]->type != MONO_TYPE_STRING))
4195 get_instance = NULL;
4199 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);
4202 /* Throw exception and emit compensation code if neccesary */
4203 if (exception_msg) {
4205 case MARSHAL_ACTION_CONV_IN:
4206 case MARSHAL_ACTION_CONV_RESULT:
4207 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4208 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4209 mono_mb_emit_byte (mb, CEE_POP);
4211 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4212 g_free (exception_msg);
4215 case MARSHAL_ACTION_PUSH:
4216 mono_mb_emit_byte (mb, CEE_LDNULL);
4224 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4225 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4228 case MARSHAL_ACTION_CONV_IN:
4230 case MONO_TYPE_CLASS:
4231 case MONO_TYPE_OBJECT:
4232 case MONO_TYPE_STRING:
4233 case MONO_TYPE_ARRAY:
4234 case MONO_TYPE_SZARRAY:
4235 case MONO_TYPE_VALUETYPE:
4239 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4240 g_assert_not_reached ();
4244 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4246 mono_mb_emit_byte (mb, CEE_LDNULL);
4247 mono_mb_emit_stloc (mb, conv_arg);
4249 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4252 /* Minic MS.NET behavior */
4253 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4256 /* Check for null */
4257 mono_mb_emit_ldarg (mb, argnum);
4259 mono_mb_emit_byte (mb, CEE_LDIND_I);
4260 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4262 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4264 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4266 mono_mb_emit_ldarg (mb, argnum);
4268 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4270 if (t->type == MONO_TYPE_VALUETYPE) {
4272 * Since we can't determine the type of the argument, we
4273 * will assume the unmanaged function takes a pointer.
4275 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4277 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4280 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4281 mono_mb_emit_stloc (mb, conv_arg);
4283 mono_mb_patch_branch (mb, pos2);
4286 case MARSHAL_ACTION_CONV_OUT:
4287 /* Check for null */
4288 mono_mb_emit_ldloc (mb, conv_arg);
4289 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4292 mono_mb_emit_ldarg (mb, argnum);
4294 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4296 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4298 mono_mb_emit_ldloc (mb, conv_arg);
4299 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4300 mono_mb_emit_byte (mb, CEE_STIND_REF);
4301 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4302 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4304 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4306 mono_mb_emit_ldloc (mb, conv_arg);
4307 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4309 /* We have nowhere to store the result */
4310 mono_mb_emit_byte (mb, CEE_POP);
4313 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4315 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4317 mono_mb_emit_ldloc (mb, conv_arg);
4319 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4321 mono_mb_patch_branch (mb, pos2);
4324 case MARSHAL_ACTION_PUSH:
4326 mono_mb_emit_ldloc_addr (mb, conv_arg);
4328 mono_mb_emit_ldloc (mb, conv_arg);
4331 case MARSHAL_ACTION_CONV_RESULT:
4332 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4334 mono_mb_emit_stloc (mb, 3);
4336 mono_mb_emit_ldloc (mb, 3);
4337 mono_mb_emit_stloc (mb, loc1);
4339 /* Check for null */
4340 mono_mb_emit_ldloc (mb, 3);
4341 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4343 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4345 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4346 mono_mb_emit_byte (mb, CEE_DUP);
4348 mono_mb_emit_ldloc (mb, 3);
4349 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4350 mono_mb_emit_stloc (mb, 3);
4352 mono_mb_emit_ldloc (mb, loc1);
4353 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4355 mono_mb_patch_branch (mb, pos2);
4358 case MARSHAL_ACTION_MANAGED_CONV_IN:
4359 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4361 mono_mb_emit_byte (mb, CEE_LDNULL);
4362 mono_mb_emit_stloc (mb, conv_arg);
4364 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4367 /* Check for null */
4368 mono_mb_emit_ldarg (mb, argnum);
4370 mono_mb_emit_byte (mb, CEE_LDIND_I);
4371 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4373 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4374 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4376 mono_mb_emit_ldarg (mb, argnum);
4378 mono_mb_emit_byte (mb, CEE_LDIND_I);
4380 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4381 mono_mb_emit_stloc (mb, conv_arg);
4383 mono_mb_patch_branch (mb, pos2);
4386 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4387 g_assert (!t->byref);
4389 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4391 mono_mb_emit_stloc (mb, 3);
4393 mono_mb_emit_ldloc (mb, 3);
4394 mono_mb_emit_stloc (mb, loc1);
4396 /* Check for null */
4397 mono_mb_emit_ldloc (mb, 3);
4398 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4400 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4401 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4402 mono_mb_emit_byte (mb, CEE_DUP);
4404 mono_mb_emit_ldloc (mb, 3);
4405 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4406 mono_mb_emit_stloc (mb, 3);
4408 mono_mb_emit_ldloc (mb, loc1);
4409 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4411 mono_mb_patch_branch (mb, pos2);
4414 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4416 /* Check for null */
4417 mono_mb_emit_ldloc (mb, conv_arg);
4418 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4421 mono_mb_emit_ldarg (mb, argnum);
4423 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4425 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4427 mono_mb_emit_ldloc (mb, conv_arg);
4428 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4429 mono_mb_emit_byte (mb, CEE_STIND_I);
4432 /* Call CleanUpManagedData */
4433 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4435 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4437 mono_mb_emit_ldloc (mb, conv_arg);
4438 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4440 mono_mb_patch_branch (mb, pos2);
4444 g_assert_not_reached ();
4452 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4453 MonoMarshalSpec *spec,
4454 int conv_arg, MonoType **conv_arg_type,
4455 MarshalAction action)
4458 MonoMethodBuilder *mb = m->mb;
4461 case MARSHAL_ACTION_CONV_IN: {
4462 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4464 g_assert (t->type == MONO_TYPE_OBJECT);
4465 g_assert (!t->byref);
4467 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4468 mono_mb_emit_ldarg (mb, argnum);
4469 mono_mb_emit_icon (mb, encoding);
4470 mono_mb_emit_icon (mb, t->attrs);
4471 mono_mb_emit_icall (mb, mono_marshal_asany);
4472 mono_mb_emit_stloc (mb, conv_arg);
4476 case MARSHAL_ACTION_PUSH:
4477 mono_mb_emit_ldloc (mb, conv_arg);
4480 case MARSHAL_ACTION_CONV_OUT: {
4481 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4483 mono_mb_emit_ldarg (mb, argnum);
4484 mono_mb_emit_ldloc (mb, conv_arg);
4485 mono_mb_emit_icon (mb, encoding);
4486 mono_mb_emit_icon (mb, t->attrs);
4487 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4492 g_assert_not_reached ();
4499 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4500 MonoMarshalSpec *spec,
4501 int conv_arg, MonoType **conv_arg_type,
4502 MarshalAction action)
4505 MonoMethodBuilder *mb = m->mb;
4506 MonoClass *klass, *date_time_class;
4509 klass = mono_class_from_mono_type (t);
4511 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4514 case MARSHAL_ACTION_CONV_IN:
4515 if (klass == date_time_class) {
4516 /* Convert it to an OLE DATE type */
4517 static MonoMethod *to_oadate;
4520 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4521 g_assert (to_oadate);
4523 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4526 mono_mb_emit_ldarg (mb, argnum);
4527 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4530 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4532 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4534 mono_mb_emit_ldarg_addr (mb, argnum);
4535 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4536 mono_mb_emit_stloc (mb, conv_arg);
4540 mono_mb_patch_branch (mb, pos);
4544 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4545 klass->blittable || klass->enumtype)
4548 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4550 /* store the address of the source into local variable 0 */
4552 mono_mb_emit_ldarg (mb, argnum);
4554 mono_mb_emit_ldarg_addr (mb, argnum);
4556 mono_mb_emit_stloc (mb, 0);
4558 /* allocate space for the native struct and
4559 * store the address into local variable 1 (dest) */
4560 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4561 mono_mb_emit_byte (mb, CEE_PREFIX1);
4562 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4563 mono_mb_emit_stloc (mb, conv_arg);
4566 mono_mb_emit_ldloc (mb, 0);
4567 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4570 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4572 mono_mb_emit_ldloc (mb, conv_arg);
4573 mono_mb_emit_stloc (mb, 1);
4575 /* emit valuetype conversion code */
4576 emit_struct_conv (mb, klass, FALSE);
4580 mono_mb_patch_branch (mb, pos);
4583 case MARSHAL_ACTION_PUSH:
4584 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4586 g_assert (!t->byref);
4588 /* Have to change the signature since the vtype is passed byref */
4589 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4591 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4592 klass->blittable || klass->enumtype)
4593 mono_mb_emit_ldarg_addr (mb, argnum);
4595 mono_mb_emit_ldloc (mb, conv_arg);
4599 if (klass == date_time_class) {
4601 mono_mb_emit_ldloc_addr (mb, conv_arg);
4603 mono_mb_emit_ldloc (mb, conv_arg);
4607 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4608 klass->blittable || klass->enumtype) {
4609 mono_mb_emit_ldarg (mb, argnum);
4612 mono_mb_emit_ldloc (mb, conv_arg);
4614 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4615 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4619 case MARSHAL_ACTION_CONV_OUT:
4620 if (klass == date_time_class) {
4621 /* Convert from an OLE DATE type */
4622 static MonoMethod *from_oadate;
4627 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4629 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4630 g_assert (from_oadate);
4632 mono_mb_emit_ldarg (mb, argnum);
4633 mono_mb_emit_ldloc (mb, conv_arg);
4634 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4635 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4640 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4641 klass->blittable || klass->enumtype)
4645 /* dst = argument */
4646 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_stloc (mb, 1);
4649 mono_mb_emit_ldloc (mb, 1);
4650 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4652 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4653 /* src = tmp_locals [i] */
4654 mono_mb_emit_ldloc (mb, conv_arg);
4655 mono_mb_emit_stloc (mb, 0);
4657 /* emit valuetype conversion code */
4658 emit_struct_conv (mb, klass, TRUE);
4662 emit_struct_free (mb, klass, conv_arg);
4665 mono_mb_patch_branch (mb, pos);
4668 case MARSHAL_ACTION_CONV_RESULT:
4669 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4671 mono_mb_emit_stloc (mb, 3);
4675 /* load pointer to returned value type */
4676 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4677 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4678 /* store the address of the source into local variable 0 */
4679 mono_mb_emit_stloc (mb, 0);
4681 mono_mb_emit_ldloc_addr (mb, 3);
4682 mono_mb_emit_stloc (mb, 1);
4684 /* emit valuetype conversion code */
4685 emit_struct_conv (mb, klass, TRUE);
4688 case MARSHAL_ACTION_MANAGED_CONV_IN:
4689 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4690 klass->blittable || klass->enumtype) {
4695 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4697 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4701 mono_mb_emit_ldarg (mb, argnum);
4703 mono_mb_emit_ldarg_addr (mb, argnum);
4704 mono_mb_emit_stloc (mb, 0);
4707 mono_mb_emit_ldloc (mb, 0);
4708 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4711 mono_mb_emit_ldloc_addr (mb, conv_arg);
4712 mono_mb_emit_stloc (mb, 1);
4714 /* emit valuetype conversion code */
4715 emit_struct_conv (mb, klass, TRUE);
4718 mono_mb_patch_branch (mb, pos);
4721 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4722 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4723 klass->blittable || klass->enumtype) {
4727 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4730 /* Check for null */
4731 mono_mb_emit_ldarg (mb, argnum);
4732 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4735 mono_mb_emit_ldloc_addr (mb, conv_arg);
4736 mono_mb_emit_stloc (mb, 0);
4739 mono_mb_emit_ldarg (mb, argnum);
4740 mono_mb_emit_stloc (mb, 1);
4742 /* emit valuetype conversion code */
4743 emit_struct_conv (mb, klass, FALSE);
4745 mono_mb_patch_branch (mb, pos2);
4748 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4749 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4750 klass->blittable || klass->enumtype) {
4751 mono_mb_emit_stloc (mb, 3);
4756 /* load pointer to returned value type */
4757 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4758 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4760 /* store the address of the source into local variable 0 */
4761 mono_mb_emit_stloc (mb, 0);
4762 /* allocate space for the native struct and
4763 * store the address into dst_ptr */
4764 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4765 m->retobj_class = klass;
4766 g_assert (m->retobj_var);
4767 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4768 mono_mb_emit_byte (mb, CEE_CONV_I);
4769 mono_mb_emit_icall (mb, mono_marshal_alloc);
4770 mono_mb_emit_stloc (mb, 1);
4771 mono_mb_emit_ldloc (mb, 1);
4772 mono_mb_emit_stloc (mb, m->retobj_var);
4774 /* emit valuetype conversion code */
4775 emit_struct_conv (mb, klass, FALSE);
4779 g_assert_not_reached ();
4786 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4787 MonoMarshalSpec *spec,
4788 int conv_arg, MonoType **conv_arg_type,
4789 MarshalAction action)
4793 case MARSHAL_ACTION_CONV_IN:
4794 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4796 case MARSHAL_ACTION_MANAGED_CONV_IN:
4797 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4801 MonoMethodBuilder *mb = m->mb;
4802 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4803 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4807 case MARSHAL_ACTION_CONV_IN:
4808 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4809 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4812 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4815 mono_mb_emit_ldarg (mb, argnum);
4816 mono_mb_emit_byte (mb, CEE_LDIND_I);
4818 mono_mb_emit_ldarg (mb, argnum);
4822 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4823 mono_mb_emit_exception_marshal_directive (mb, msg);
4825 mono_mb_emit_icall (mb, conv_to_icall (conv));
4827 mono_mb_emit_stloc (mb, conv_arg);
4831 case MARSHAL_ACTION_CONV_OUT:
4832 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4834 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4835 mono_mb_emit_exception_marshal_directive (mb, msg);
4839 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4840 static MonoMethod *m;
4843 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4848 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4849 mono_mb_emit_exception_marshal_directive (mb, msg);
4854 * Have to allocate a new string with the same length as the original, and
4855 * copy the contents of the buffer pointed to by CONV_ARG into it.
4857 g_assert (t->byref);
4858 mono_mb_emit_ldarg (mb, argnum);
4859 mono_mb_emit_ldloc (mb, conv_arg);
4860 mono_mb_emit_ldarg (mb, argnum);
4861 mono_mb_emit_byte (mb, CEE_LDIND_I);
4862 mono_mb_emit_managed_call (mb, m, NULL);
4863 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4864 mono_mb_emit_byte (mb, CEE_STIND_REF);
4865 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4866 mono_mb_emit_ldarg (mb, argnum);
4867 mono_mb_emit_ldloc (mb, conv_arg);
4868 mono_mb_emit_icall (mb, conv_to_icall (conv));
4869 mono_mb_emit_byte (mb, CEE_STIND_REF);
4874 mono_mb_emit_ldloc (mb, conv_arg);
4875 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4876 mono_mb_emit_icall (mb, mono_free_bstr);
4878 mono_mb_emit_icall (mb, mono_marshal_free);
4882 case MARSHAL_ACTION_PUSH:
4883 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4884 mono_mb_emit_ldloc_addr (mb, conv_arg);
4886 mono_mb_emit_ldloc (mb, conv_arg);
4889 case MARSHAL_ACTION_CONV_RESULT:
4890 mono_mb_emit_stloc (mb, 0);
4892 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4894 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4895 mono_mb_emit_exception_marshal_directive (mb, msg);
4899 mono_mb_emit_ldloc (mb, 0);
4900 mono_mb_emit_icall (mb, conv_to_icall (conv));
4901 mono_mb_emit_stloc (mb, 3);
4903 /* free the string */
4904 mono_mb_emit_ldloc (mb, 0);
4905 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4906 mono_mb_emit_icall (mb, mono_free_bstr);
4908 mono_mb_emit_icall (mb, mono_marshal_free);
4911 case MARSHAL_ACTION_MANAGED_CONV_IN:
4912 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4914 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4917 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4921 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4923 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4924 mono_mb_emit_exception_marshal_directive (mb, msg);
4928 mono_mb_emit_ldarg (mb, argnum);
4930 mono_mb_emit_byte (mb, CEE_LDIND_I);
4931 mono_mb_emit_icall (mb, conv_to_icall (conv));
4932 mono_mb_emit_stloc (mb, conv_arg);
4935 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4938 mono_mb_emit_ldarg (mb, argnum);
4939 mono_mb_emit_ldloc (mb, conv_arg);
4940 mono_mb_emit_icall (mb, conv_to_icall (conv));
4941 mono_mb_emit_byte (mb, CEE_STIND_I);
4946 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4947 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4948 /* We need to make a copy so the caller is able to free it */
4949 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4951 mono_mb_emit_icall (mb, conv_to_icall (conv));
4952 mono_mb_emit_stloc (mb, 3);
4956 g_assert_not_reached ();
4964 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4965 MonoMarshalSpec *spec, int conv_arg,
4966 MonoType **conv_arg_type, MarshalAction action)
4969 if (action == MARSHAL_ACTION_CONV_IN)
4970 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4972 MonoMethodBuilder *mb = m->mb;
4975 case MARSHAL_ACTION_CONV_IN: {
4976 MonoType *intptr_type;
4977 int dar_release_slot, pos;
4979 intptr_type = &mono_defaults.int_class->byval_arg;
4980 conv_arg = mono_mb_add_local (mb, intptr_type);
4981 *conv_arg_type = intptr_type;
4983 if (!sh_dangerous_add_ref)
4984 init_safe_handle ();
4986 mono_mb_emit_ldarg (mb, argnum);
4987 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4988 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4990 mono_mb_patch_branch (mb, pos);
4993 * My tests in show that ref SafeHandles are not really
4994 * passed as ref objects. Instead a NULL is passed as the
4997 mono_mb_emit_icon (mb, 0);
4998 mono_mb_emit_stloc (mb, conv_arg);
5002 /* Create local to hold the ref parameter to DangerousAddRef */
5003 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5005 /* set release = false; */
5006 mono_mb_emit_icon (mb, 0);
5007 mono_mb_emit_stloc (mb, dar_release_slot);
5009 /* safehandle.DangerousAddRef (ref release) */
5010 mono_mb_emit_ldarg (mb, argnum);
5011 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5012 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5014 /* Pull the handle field from SafeHandle */
5015 mono_mb_emit_ldarg (mb, argnum);
5016 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5017 mono_mb_emit_byte (mb, CEE_LDIND_I);
5018 mono_mb_emit_stloc (mb, conv_arg);
5023 case MARSHAL_ACTION_PUSH:
5025 mono_mb_emit_ldloc_addr (mb, conv_arg);
5027 mono_mb_emit_ldloc (mb, conv_arg);
5030 case MARSHAL_ACTION_CONV_OUT: {
5031 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5032 int dar_release_slot = conv_arg + 1;
5035 if (!sh_dangerous_release)
5036 init_safe_handle ();
5042 * My tests indicate that ref SafeHandles parameters are not actually
5043 * passed by ref, but instead a new Handle is created regardless of
5044 * whether a change happens in the unmanaged side.
5046 * Also, the Handle is created before calling into unmanaged code,
5047 * but we do not support that mechanism (getting to the original
5048 * handle) and it makes no difference where we create this
5050 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5052 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5055 /* refval = new SafeHandleDerived ()*/
5056 mono_mb_emit_ldarg (mb, argnum);
5057 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5058 mono_mb_emit_byte (mb, CEE_STIND_REF);
5060 /* refval.handle = returned_handle */
5061 mono_mb_emit_ldarg (mb, argnum);
5062 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5063 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5064 mono_mb_emit_ldloc (mb, conv_arg);
5065 mono_mb_emit_byte (mb, CEE_STIND_I);
5067 mono_mb_emit_ldloc (mb, dar_release_slot);
5068 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5069 mono_mb_emit_ldarg (mb, argnum);
5070 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5071 mono_mb_patch_branch (mb, label_next);
5076 case MARSHAL_ACTION_CONV_RESULT: {
5077 MonoMethod *ctor = NULL;
5078 int intptr_handle_slot;
5080 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5081 mono_mb_emit_byte (mb, CEE_POP);
5082 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5086 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5088 mono_mb_emit_byte (mb, CEE_POP);
5089 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5092 /* Store the IntPtr results into a local */
5093 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5094 mono_mb_emit_stloc (mb, intptr_handle_slot);
5096 /* Create return value */
5097 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5098 mono_mb_emit_stloc (mb, 3);
5100 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5101 mono_mb_emit_ldloc (mb, 3);
5102 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5103 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5104 mono_mb_emit_byte (mb, CEE_STIND_I);
5108 case MARSHAL_ACTION_MANAGED_CONV_IN:
5109 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5112 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5113 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5116 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5117 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5120 printf ("Unhandled case for MarshalAction: %d\n", action);
5128 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5129 MonoMarshalSpec *spec, int conv_arg,
5130 MonoType **conv_arg_type, MarshalAction action)
5133 if (action == MARSHAL_ACTION_CONV_IN)
5134 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5136 MonoMethodBuilder *mb = m->mb;
5139 case MARSHAL_ACTION_CONV_IN: {
5140 MonoType *intptr_type;
5142 intptr_type = &mono_defaults.int_class->byval_arg;
5143 conv_arg = mono_mb_add_local (mb, intptr_type);
5144 *conv_arg_type = intptr_type;
5147 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5148 mono_mb_emit_exception_marshal_directive (mb, msg);
5151 mono_mb_emit_ldarg_addr (mb, argnum);
5152 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5153 mono_mb_emit_byte (mb, CEE_ADD);
5154 mono_mb_emit_byte (mb, CEE_LDIND_I);
5155 mono_mb_emit_stloc (mb, conv_arg);
5159 case MARSHAL_ACTION_PUSH:
5160 mono_mb_emit_ldloc (mb, conv_arg);
5163 case MARSHAL_ACTION_CONV_OUT: {
5164 /* no resource release required */
5168 case MARSHAL_ACTION_CONV_RESULT: {
5169 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5170 mono_mb_emit_exception_marshal_directive (mb, msg);
5174 case MARSHAL_ACTION_MANAGED_CONV_IN:
5175 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5178 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5179 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5182 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5186 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5194 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5195 MonoMarshalSpec *spec,
5196 int conv_arg, MonoType **conv_arg_type,
5197 MarshalAction action)
5200 if (action == MARSHAL_ACTION_CONV_IN)
5201 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5203 MonoMethodBuilder *mb = m->mb;
5204 MonoClass *klass = mono_class_from_mono_type (t);
5208 case MARSHAL_ACTION_CONV_IN:
5209 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5210 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5212 m->orig_conv_args [argnum] = 0;
5214 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5215 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5216 mono_mb_emit_exception_marshal_directive (mb, msg);
5220 if (klass->delegate) {
5222 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5223 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5224 mono_mb_emit_exception_marshal_directive (mb, msg);
5226 mono_mb_emit_byte (mb, CEE_LDNULL);
5227 mono_mb_emit_stloc (mb, conv_arg);
5229 mono_mb_emit_ldarg (mb, argnum);
5230 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5231 mono_mb_emit_stloc (mb, conv_arg);
5233 } else if (klass == mono_defaults.stringbuilder_class) {
5234 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5235 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5239 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5240 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5241 mono_mb_emit_exception_marshal_directive (mb, msg);
5247 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5251 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5252 mono_mb_emit_exception_marshal_directive (mb, msg);
5256 mono_mb_emit_ldarg (mb, argnum);
5258 mono_mb_emit_byte (mb, CEE_LDIND_I);
5260 mono_mb_emit_icall (mb, conv_to_icall (conv));
5261 mono_mb_emit_stloc (mb, conv_arg);
5262 } else if (klass->blittable) {
5263 mono_mb_emit_byte (mb, CEE_LDNULL);
5264 mono_mb_emit_stloc (mb, conv_arg);
5266 mono_mb_emit_ldarg (mb, argnum);
5267 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5269 mono_mb_emit_ldarg (mb, argnum);
5270 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5271 mono_mb_emit_stloc (mb, conv_arg);
5273 mono_mb_patch_branch (mb, pos);
5276 mono_mb_emit_byte (mb, CEE_LDNULL);
5277 mono_mb_emit_stloc (mb, conv_arg);
5280 /* we dont need any conversions for out parameters */
5281 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5284 mono_mb_emit_ldarg (mb, argnum);
5285 mono_mb_emit_byte (mb, CEE_LDIND_I);
5288 mono_mb_emit_ldarg (mb, argnum);
5289 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5290 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5293 /* store the address of the source into local variable 0 */
5294 mono_mb_emit_stloc (mb, 0);
5295 mono_mb_emit_ldloc (mb, 0);
5296 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5298 /* allocate space for the native struct and store the address */
5299 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5300 mono_mb_emit_byte (mb, CEE_PREFIX1);
5301 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5302 mono_mb_emit_stloc (mb, conv_arg);
5305 /* Need to store the original buffer so we can free it later */
5306 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5307 mono_mb_emit_ldloc (mb, conv_arg);
5308 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5311 /* set the src_ptr */
5312 mono_mb_emit_ldloc (mb, 0);
5313 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5314 mono_mb_emit_stloc (mb, 0);
5317 mono_mb_emit_ldloc (mb, conv_arg);
5318 mono_mb_emit_stloc (mb, 1);
5320 /* emit valuetype conversion code */
5321 emit_struct_conv (mb, klass, FALSE);
5323 mono_mb_patch_branch (mb, pos);
5327 case MARSHAL_ACTION_CONV_OUT:
5328 if (klass == mono_defaults.stringbuilder_class) {
5330 MonoMarshalNative encoding;
5331 MonoMarshalConv conv;
5333 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5334 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5336 g_assert (encoding != -1);
5339 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5343 mono_mb_emit_ldarg (mb, argnum);
5344 mono_mb_emit_ldloc (mb, conv_arg);
5347 case MONO_NATIVE_LPWSTR:
5348 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5350 case MONO_NATIVE_LPSTR:
5351 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5354 g_assert_not_reached ();
5357 mono_mb_emit_byte (mb, CEE_STIND_REF);
5359 mono_mb_emit_ldarg (mb, argnum);
5360 mono_mb_emit_ldloc (mb, conv_arg);
5362 mono_mb_emit_icall (mb, conv_to_icall (conv));
5366 mono_mb_emit_ldloc (mb, conv_arg);
5367 mono_mb_emit_icall (mb, mono_marshal_free);
5372 if (klass->delegate) {
5374 mono_mb_emit_ldarg (mb, argnum);
5375 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5376 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5377 mono_mb_emit_ldloc (mb, conv_arg);
5378 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5379 mono_mb_emit_byte (mb, CEE_STIND_REF);
5384 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5385 /* allocate a new object */
5386 mono_mb_emit_ldarg (mb, argnum);
5387 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5388 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5389 mono_mb_emit_byte (mb, CEE_STIND_REF);
5392 /* dst = *argument */
5393 mono_mb_emit_ldarg (mb, argnum);
5396 mono_mb_emit_byte (mb, CEE_LDIND_I);
5398 mono_mb_emit_stloc (mb, 1);
5400 mono_mb_emit_ldloc (mb, 1);
5401 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5403 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5404 mono_mb_emit_ldloc (mb, 1);
5405 mono_mb_emit_icon (mb, sizeof (MonoObject));
5406 mono_mb_emit_byte (mb, CEE_ADD);
5407 mono_mb_emit_stloc (mb, 1);
5409 /* src = tmp_locals [i] */
5410 mono_mb_emit_ldloc (mb, conv_arg);
5411 mono_mb_emit_stloc (mb, 0);
5413 /* emit valuetype conversion code */
5414 emit_struct_conv (mb, klass, TRUE);
5416 /* Free the structure returned by the native code */
5417 emit_struct_free (mb, klass, conv_arg);
5419 if (m->orig_conv_args [argnum]) {
5421 * If the native function changed the pointer, then free
5422 * the original structure plus the new pointer.
5424 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5425 mono_mb_emit_ldloc (mb, conv_arg);
5426 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5428 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5429 g_assert (m->orig_conv_args [argnum]);
5431 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5434 mono_mb_emit_ldloc (mb, conv_arg);
5435 mono_mb_emit_icall (mb, mono_marshal_free);
5437 mono_mb_patch_branch (mb, pos2);
5441 /* Free the original structure passed to native code */
5442 emit_struct_free (mb, klass, conv_arg);
5444 mono_mb_patch_branch (mb, pos);
5447 case MARSHAL_ACTION_PUSH:
5449 mono_mb_emit_ldloc_addr (mb, conv_arg);
5451 mono_mb_emit_ldloc (mb, conv_arg);
5454 case MARSHAL_ACTION_CONV_RESULT:
5455 if (klass->delegate) {
5456 g_assert (!t->byref);
5457 mono_mb_emit_stloc (mb, 0);
5458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5459 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5460 mono_mb_emit_ldloc (mb, 0);
5461 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5462 mono_mb_emit_stloc (mb, 3);
5465 mono_mb_emit_stloc (mb, 0);
5467 /* Make a copy since emit_conv modifies local 0 */
5468 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5469 mono_mb_emit_ldloc (mb, 0);
5470 mono_mb_emit_stloc (mb, loc);
5472 mono_mb_emit_byte (mb, CEE_LDNULL);
5473 mono_mb_emit_stloc (mb, 3);
5475 mono_mb_emit_ldloc (mb, 0);
5476 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5478 /* allocate result object */
5480 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5481 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5482 mono_mb_emit_stloc (mb, 3);
5486 mono_mb_emit_ldloc (mb, 3);
5487 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5488 mono_mb_emit_stloc (mb, 1);
5490 /* emit conversion code */
5491 emit_struct_conv (mb, klass, TRUE);
5493 emit_struct_free (mb, klass, loc);
5495 /* Free the pointer allocated by unmanaged code */
5496 mono_mb_emit_ldloc (mb, loc);
5497 mono_mb_emit_icall (mb, mono_marshal_free);
5498 mono_mb_patch_branch (mb, pos);
5502 case MARSHAL_ACTION_MANAGED_CONV_IN:
5503 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5505 if (klass->delegate) {
5506 g_assert (!t->byref);
5507 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5508 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5509 mono_mb_emit_ldarg (mb, argnum);
5510 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5511 mono_mb_emit_stloc (mb, conv_arg);
5515 if (klass == mono_defaults.stringbuilder_class) {
5516 MonoMarshalNative encoding;
5518 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5521 g_assert (encoding == MONO_NATIVE_LPSTR);
5523 g_assert (!t->byref);
5524 g_assert (encoding != -1);
5526 mono_mb_emit_ldarg (mb, argnum);
5527 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5528 mono_mb_emit_stloc (mb, conv_arg);
5532 /* The class can not have an automatic layout */
5533 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5534 mono_mb_emit_auto_layout_exception (mb, klass);
5538 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5539 mono_mb_emit_byte (mb, CEE_LDNULL);
5540 mono_mb_emit_stloc (mb, conv_arg);
5545 mono_mb_emit_ldarg (mb, argnum);
5549 /* Check for NULL and raise an exception */
5550 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5552 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5554 mono_mb_patch_branch (mb, pos2);
5555 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_byte (mb, CEE_LDIND_I);
5559 mono_mb_emit_stloc (mb, 0);
5561 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5562 mono_mb_emit_stloc (mb, conv_arg);
5564 mono_mb_emit_ldloc (mb, 0);
5565 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5567 /* Create and set dst */
5568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5569 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5570 mono_mb_emit_stloc (mb, conv_arg);
5571 mono_mb_emit_ldloc (mb, conv_arg);
5572 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5573 mono_mb_emit_stloc (mb, 1);
5575 /* emit valuetype conversion code */
5576 emit_struct_conv (mb, klass, TRUE);
5578 mono_mb_patch_branch (mb, pos);
5581 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5583 /* Check for null */
5584 mono_mb_emit_ldloc (mb, conv_arg);
5585 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5586 mono_mb_emit_ldarg (mb, argnum);
5587 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5588 mono_mb_emit_byte (mb, CEE_STIND_REF);
5589 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5591 mono_mb_patch_branch (mb, pos);
5594 mono_mb_emit_ldloc (mb, conv_arg);
5595 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5596 mono_mb_emit_stloc (mb, 0);
5598 /* Allocate and set dest */
5599 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5600 mono_mb_emit_byte (mb, CEE_CONV_I);
5601 mono_mb_emit_icall (mb, mono_marshal_alloc);
5602 mono_mb_emit_stloc (mb, 1);
5604 /* Update argument pointer */
5605 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_ldloc (mb, 1);
5607 mono_mb_emit_byte (mb, CEE_STIND_I);
5609 /* emit valuetype conversion code */
5610 emit_struct_conv (mb, klass, FALSE);
5612 mono_mb_patch_branch (mb, pos2);
5614 /* byval [Out] marshalling */
5616 /* FIXME: Handle null */
5619 mono_mb_emit_ldloc (mb, conv_arg);
5620 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5621 mono_mb_emit_stloc (mb, 0);
5624 mono_mb_emit_ldarg (mb, argnum);
5625 mono_mb_emit_stloc (mb, 1);
5627 /* emit valuetype conversion code */
5628 emit_struct_conv (mb, klass, FALSE);
5632 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5633 if (klass->delegate) {
5634 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5635 mono_mb_emit_stloc (mb, 3);
5639 /* The class can not have an automatic layout */
5640 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5641 mono_mb_emit_auto_layout_exception (mb, klass);
5645 mono_mb_emit_stloc (mb, 0);
5646 /* Check for null */
5647 mono_mb_emit_ldloc (mb, 0);
5648 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5649 mono_mb_emit_byte (mb, CEE_LDNULL);
5650 mono_mb_emit_stloc (mb, 3);
5651 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5653 mono_mb_patch_branch (mb, pos);
5656 mono_mb_emit_ldloc (mb, 0);
5657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5658 mono_mb_emit_stloc (mb, 0);
5660 /* Allocate and set dest */
5661 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5662 mono_mb_emit_byte (mb, CEE_CONV_I);
5663 mono_mb_emit_icall (mb, mono_marshal_alloc);
5664 mono_mb_emit_byte (mb, CEE_DUP);
5665 mono_mb_emit_stloc (mb, 1);
5666 mono_mb_emit_stloc (mb, 3);
5668 emit_struct_conv (mb, klass, FALSE);
5670 mono_mb_patch_branch (mb, pos2);
5674 g_assert_not_reached ();
5685 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5686 MonoMarshalSpec *spec,
5687 int conv_arg, MonoType **conv_arg_type,
5688 MarshalAction action)
5690 MonoMethodBuilder *mb = m->mb;
5691 static MonoMethod *get_object_for_native_variant = NULL;
5692 static MonoMethod *get_native_variant_for_object = NULL;
5694 if (!get_object_for_native_variant)
5695 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5696 g_assert (get_object_for_native_variant);
5698 if (!get_native_variant_for_object)
5699 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5700 g_assert (get_native_variant_for_object);
5703 case MARSHAL_ACTION_CONV_IN: {
5704 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5707 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5709 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5711 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5714 mono_mb_emit_ldarg (mb, argnum);
5716 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5717 mono_mb_emit_ldloc_addr (mb, conv_arg);
5718 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5722 case MARSHAL_ACTION_CONV_OUT: {
5723 static MonoMethod *variant_clear = NULL;
5726 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5727 g_assert (variant_clear);
5730 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5731 mono_mb_emit_ldarg (mb, argnum);
5732 mono_mb_emit_ldloc_addr (mb, conv_arg);
5733 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5734 mono_mb_emit_byte (mb, CEE_STIND_REF);
5737 mono_mb_emit_ldloc_addr (mb, conv_arg);
5738 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5742 case MARSHAL_ACTION_PUSH:
5744 mono_mb_emit_ldloc_addr (mb, conv_arg);
5746 mono_mb_emit_ldloc (mb, conv_arg);
5749 case MARSHAL_ACTION_CONV_RESULT: {
5750 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5751 mono_mb_emit_exception_marshal_directive (mb, msg);
5755 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5756 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5759 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5761 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5763 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5767 mono_mb_emit_ldarg (mb, argnum);
5769 mono_mb_emit_ldarg_addr (mb, argnum);
5770 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5771 mono_mb_emit_stloc (mb, conv_arg);
5775 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5776 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5777 mono_mb_emit_ldloc (mb, conv_arg);
5778 mono_mb_emit_ldarg (mb, argnum);
5779 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5784 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5785 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5786 mono_mb_emit_exception_marshal_directive (mb, msg);
5791 g_assert_not_reached ();
5797 #endif /* DISABLE_COM */
5798 #endif /* DISABLE_JIT */
5801 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5803 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5804 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5806 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5808 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5820 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5821 MonoMarshalSpec *spec,
5822 int conv_arg, MonoType **conv_arg_type,
5823 MarshalAction action)
5827 case MARSHAL_ACTION_CONV_IN:
5828 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5830 case MARSHAL_ACTION_MANAGED_CONV_IN:
5831 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5835 MonoMethodBuilder *mb = m->mb;
5836 MonoClass *klass = mono_class_from_mono_type (t);
5837 gboolean need_convert, need_free;
5838 MonoMarshalNative encoding;
5840 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5843 case MARSHAL_ACTION_CONV_IN:
5844 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5845 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5847 if (klass->element_class->blittable) {
5848 mono_mb_emit_ldarg (mb, argnum);
5850 mono_mb_emit_byte (mb, CEE_LDIND_I);
5851 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5852 mono_mb_emit_stloc (mb, conv_arg);
5855 guint32 label1, label2, label3;
5856 int index_var, src_var, dest_ptr, esize;
5857 MonoMarshalConv conv;
5858 gboolean is_string = FALSE;
5860 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5862 eklass = klass->element_class;
5864 if (eklass == mono_defaults.string_class) {
5866 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5868 else if (eklass == mono_defaults.stringbuilder_class) {
5870 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5875 if (is_string && conv == -1) {
5876 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5877 mono_mb_emit_exception_marshal_directive (mb, msg);
5881 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5882 mono_mb_emit_ldarg (mb, argnum);
5884 mono_mb_emit_byte (mb, CEE_LDIND_I);
5885 mono_mb_emit_stloc (mb, src_var);
5888 mono_mb_emit_ldloc (mb, src_var);
5889 mono_mb_emit_stloc (mb, conv_arg);
5890 mono_mb_emit_ldloc (mb, src_var);
5891 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5894 esize = sizeof (gpointer);
5895 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5896 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5898 esize = mono_class_native_size (eklass, NULL);
5900 /* allocate space for the native struct and store the address */
5901 mono_mb_emit_icon (mb, esize);
5902 mono_mb_emit_ldloc (mb, src_var);
5903 mono_mb_emit_byte (mb, CEE_LDLEN);
5905 if (eklass == mono_defaults.string_class) {
5906 /* Make the array bigger for the terminating null */
5907 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5908 mono_mb_emit_byte (mb, CEE_ADD);
5910 mono_mb_emit_byte (mb, CEE_MUL);
5911 mono_mb_emit_byte (mb, CEE_PREFIX1);
5912 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5913 mono_mb_emit_stloc (mb, conv_arg);
5915 mono_mb_emit_ldloc (mb, conv_arg);
5916 mono_mb_emit_stloc (mb, dest_ptr);
5918 /* Emit marshalling loop */
5919 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5920 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5921 mono_mb_emit_stloc (mb, index_var);
5922 label2 = mono_mb_get_label (mb);
5923 mono_mb_emit_ldloc (mb, index_var);
5924 mono_mb_emit_ldloc (mb, src_var);
5925 mono_mb_emit_byte (mb, CEE_LDLEN);
5926 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5928 /* Emit marshalling code */
5931 mono_mb_emit_ldloc (mb, dest_ptr);
5932 mono_mb_emit_ldloc (mb, src_var);
5933 mono_mb_emit_ldloc (mb, index_var);
5934 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5935 mono_mb_emit_icall (mb, conv_to_icall (conv));
5936 mono_mb_emit_byte (mb, CEE_STIND_I);
5938 /* set the src_ptr */
5939 mono_mb_emit_ldloc (mb, src_var);
5940 mono_mb_emit_ldloc (mb, index_var);
5941 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5942 mono_mb_emit_stloc (mb, 0);
5945 mono_mb_emit_ldloc (mb, dest_ptr);
5946 mono_mb_emit_stloc (mb, 1);
5948 /* emit valuetype conversion code */
5949 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5952 mono_mb_emit_add_to_local (mb, index_var, 1);
5953 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5955 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5957 mono_mb_patch_branch (mb, label3);
5959 if (eklass == mono_defaults.string_class) {
5960 /* Null terminate */
5961 mono_mb_emit_ldloc (mb, dest_ptr);
5962 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5963 mono_mb_emit_byte (mb, CEE_STIND_REF);
5966 mono_mb_patch_branch (mb, label1);
5971 case MARSHAL_ACTION_CONV_OUT:
5972 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5973 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);
5974 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5977 if (need_convert || need_free) {
5978 /* FIXME: Optimize blittable case */
5980 guint32 label1, label2, label3;
5981 int index_var, src_ptr, loc, esize;
5983 eklass = klass->element_class;
5984 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
5985 esize = sizeof (gpointer);
5986 else if (eklass == mono_defaults.char_class)
5987 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5989 esize = mono_class_native_size (eklass, NULL);
5990 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5991 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5994 mono_mb_emit_ldarg (mb, argnum);
5996 mono_mb_emit_byte (mb, CEE_LDIND_I);
5997 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5999 mono_mb_emit_ldloc (mb, conv_arg);
6000 mono_mb_emit_stloc (mb, src_ptr);
6002 /* Emit marshalling loop */
6003 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6004 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6005 mono_mb_emit_stloc (mb, index_var);
6006 label2 = mono_mb_get_label (mb);
6007 mono_mb_emit_ldloc (mb, index_var);
6008 mono_mb_emit_ldarg (mb, argnum);
6010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6011 mono_mb_emit_byte (mb, CEE_LDLEN);
6012 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6014 /* Emit marshalling code */
6016 if (eklass == mono_defaults.stringbuilder_class) {
6017 gboolean need_free2;
6018 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6020 g_assert (conv != -1);
6023 mono_mb_emit_ldarg (mb, argnum);
6025 mono_mb_emit_byte (mb, CEE_LDIND_I);
6026 mono_mb_emit_ldloc (mb, index_var);
6027 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6030 mono_mb_emit_ldloc (mb, src_ptr);
6031 mono_mb_emit_byte (mb, CEE_LDIND_I);
6033 mono_mb_emit_icall (mb, conv_to_icall (conv));
6037 mono_mb_emit_ldloc (mb, src_ptr);
6038 mono_mb_emit_byte (mb, CEE_LDIND_I);
6040 mono_mb_emit_icall (mb, mono_marshal_free);
6043 else if (eklass == mono_defaults.string_class) {
6046 mono_mb_emit_ldloc (mb, src_ptr);
6047 mono_mb_emit_byte (mb, CEE_LDIND_I);
6049 mono_mb_emit_icall (mb, mono_marshal_free);
6054 /* set the src_ptr */
6055 mono_mb_emit_ldloc (mb, src_ptr);
6056 mono_mb_emit_stloc (mb, 0);
6059 mono_mb_emit_ldarg (mb, argnum);
6061 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6062 mono_mb_emit_ldloc (mb, index_var);
6063 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6064 mono_mb_emit_stloc (mb, 1);
6066 /* emit valuetype conversion code */
6067 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6071 mono_mb_emit_ldloc (mb, src_ptr);
6072 mono_mb_emit_stloc (mb, loc);
6073 mono_mb_emit_ldloc (mb, loc);
6075 emit_struct_free (mb, eklass, loc);
6079 mono_mb_emit_add_to_local (mb, index_var, 1);
6080 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6082 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6084 mono_mb_patch_branch (mb, label1);
6085 mono_mb_patch_branch (mb, label3);
6088 if (klass->element_class->blittable) {
6089 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6091 mono_mb_emit_ldarg (mb, argnum);
6092 mono_mb_emit_ldloc (mb, conv_arg);
6093 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6098 case MARSHAL_ACTION_PUSH:
6100 mono_mb_emit_ldloc_addr (mb, conv_arg);
6102 mono_mb_emit_ldloc (mb, conv_arg);
6105 case MARSHAL_ACTION_CONV_RESULT:
6106 /* fixme: we need conversions here */
6107 mono_mb_emit_stloc (mb, 3);
6110 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6112 guint32 label1, label2, label3;
6113 int index_var, src_ptr, loc, esize, param_num, num_elem;
6114 MonoMarshalConv conv;
6115 gboolean is_string = FALSE;
6117 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6118 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6121 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6122 mono_mb_emit_exception_marshal_directive (mb, msg);
6126 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6127 mono_mb_emit_exception_marshal_directive (mb, msg);
6130 if (spec->native != MONO_NATIVE_LPARRAY) {
6131 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6132 mono_mb_emit_exception_marshal_directive (mb, msg);
6136 /* FIXME: t is from the method which is wrapped, not the delegate type */
6137 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6139 param_num = spec->data.array_data.param_num;
6140 num_elem = spec->data.array_data.num_elem;
6141 if (spec->data.array_data.elem_mult == 0)
6142 /* param_num is not specified */
6145 if (param_num == -1) {
6146 if (num_elem <= 0) {
6147 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6153 /* FIXME: Optimize blittable case */
6155 eklass = klass->element_class;
6156 if (eklass == mono_defaults.string_class) {
6158 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6160 else if (eklass == mono_defaults.stringbuilder_class) {
6162 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6167 mono_marshal_load_type_info (eklass);
6170 esize = sizeof (gpointer);
6172 esize = mono_class_native_size (eklass, NULL);
6173 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6174 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6176 mono_mb_emit_byte (mb, CEE_LDNULL);
6177 mono_mb_emit_stloc (mb, conv_arg);
6179 /* Check param index */
6180 if (param_num != -1) {
6181 if (param_num >= m->sig->param_count) {
6182 char *msg = g_strdup ("Array size control parameter index is out of range.");
6183 mono_mb_emit_exception_marshal_directive (mb, msg);
6186 switch (m->sig->params [param_num]->type) {
6199 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6200 mono_mb_emit_exception_marshal_directive (mb, msg);
6207 mono_mb_emit_ldarg (mb, argnum);
6208 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6210 mono_mb_emit_ldarg (mb, argnum);
6211 mono_mb_emit_stloc (mb, src_ptr);
6213 /* Create managed array */
6215 * The LPArray marshalling spec says that sometimes param_num starts
6216 * from 1, sometimes it starts from 0. But MS seems to allways start
6220 if (param_num == -1) {
6221 mono_mb_emit_icon (mb, num_elem);
6223 mono_mb_emit_ldarg (mb, param_num);
6225 mono_mb_emit_icon (mb, num_elem);
6226 mono_mb_emit_byte (mb, CEE_ADD);
6228 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6231 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6232 mono_mb_emit_stloc (mb, conv_arg);
6234 if (eklass->blittable) {
6235 mono_mb_emit_ldloc (mb, conv_arg);
6236 mono_mb_emit_byte (mb, CEE_CONV_I);
6237 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6238 mono_mb_emit_byte (mb, CEE_ADD);
6239 mono_mb_emit_ldarg (mb, argnum);
6240 mono_mb_emit_ldloc (mb, conv_arg);
6241 mono_mb_emit_byte (mb, CEE_LDLEN);
6242 mono_mb_emit_icon (mb, esize);
6243 mono_mb_emit_byte (mb, CEE_MUL);
6244 mono_mb_emit_byte (mb, CEE_PREFIX1);
6245 mono_mb_emit_byte (mb, CEE_CPBLK);
6249 /* Emit marshalling loop */
6250 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6251 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6252 mono_mb_emit_stloc (mb, index_var);
6253 label2 = mono_mb_get_label (mb);
6254 mono_mb_emit_ldloc (mb, index_var);
6255 mono_mb_emit_ldloc (mb, conv_arg);
6256 mono_mb_emit_byte (mb, CEE_LDLEN);
6257 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6259 /* Emit marshalling code */
6261 g_assert (conv != -1);
6263 mono_mb_emit_ldloc (mb, conv_arg);
6264 mono_mb_emit_ldloc (mb, index_var);
6266 mono_mb_emit_ldloc (mb, src_ptr);
6267 mono_mb_emit_byte (mb, CEE_LDIND_I);
6269 mono_mb_emit_icall (mb, conv_to_icall (conv));
6270 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6273 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6274 mono_mb_emit_exception_marshal_directive (mb, msg);
6278 mono_mb_emit_add_to_local (mb, index_var, 1);
6279 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6281 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6283 mono_mb_patch_branch (mb, label1);
6284 mono_mb_patch_branch (mb, label3);
6288 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6290 guint32 label1, label2, label3;
6291 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6292 MonoMarshalConv conv;
6293 gboolean is_string = FALSE;
6296 /* Already handled in CONV_IN */
6299 /* These are already checked in CONV_IN */
6300 g_assert (!t->byref);
6301 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6302 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6304 param_num = spec->data.array_data.param_num;
6305 num_elem = spec->data.array_data.num_elem;
6307 if (spec->data.array_data.elem_mult == 0)
6308 /* param_num is not specified */
6311 if (param_num == -1) {
6312 if (num_elem <= 0) {
6313 g_assert_not_reached ();
6317 /* FIXME: Optimize blittable case */
6319 eklass = klass->element_class;
6320 if (eklass == mono_defaults.string_class) {
6322 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6324 else if (eklass == mono_defaults.stringbuilder_class) {
6326 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6331 mono_marshal_load_type_info (eklass);
6334 esize = sizeof (gpointer);
6336 esize = mono_class_native_size (eklass, NULL);
6338 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6339 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6342 mono_mb_emit_ldloc (mb, conv_arg);
6343 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6345 mono_mb_emit_ldarg (mb, argnum);
6346 mono_mb_emit_stloc (mb, dest_ptr);
6348 if (eklass->blittable) {
6350 mono_mb_emit_ldarg (mb, argnum);
6352 mono_mb_emit_ldloc (mb, conv_arg);
6353 mono_mb_emit_byte (mb, CEE_CONV_I);
6354 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6355 mono_mb_emit_byte (mb, CEE_ADD);
6357 mono_mb_emit_ldloc (mb, conv_arg);
6358 mono_mb_emit_byte (mb, CEE_LDLEN);
6359 mono_mb_emit_icon (mb, esize);
6360 mono_mb_emit_byte (mb, CEE_MUL);
6361 mono_mb_emit_byte (mb, CEE_PREFIX1);
6362 mono_mb_emit_byte (mb, CEE_CPBLK);
6366 /* Emit marshalling loop */
6367 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6368 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6369 mono_mb_emit_stloc (mb, index_var);
6370 label2 = mono_mb_get_label (mb);
6371 mono_mb_emit_ldloc (mb, index_var);
6372 mono_mb_emit_ldloc (mb, conv_arg);
6373 mono_mb_emit_byte (mb, CEE_LDLEN);
6374 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6376 /* Emit marshalling code */
6378 g_assert (conv != -1);
6381 mono_mb_emit_ldloc (mb, dest_ptr);
6384 mono_mb_emit_ldloc (mb, conv_arg);
6385 mono_mb_emit_ldloc (mb, index_var);
6387 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6389 mono_mb_emit_icall (mb, conv_to_icall (conv));
6390 mono_mb_emit_byte (mb, CEE_STIND_I);
6393 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6394 mono_mb_emit_exception_marshal_directive (mb, msg);
6398 mono_mb_emit_add_to_local (mb, index_var, 1);
6399 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6401 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6403 mono_mb_patch_branch (mb, label1);
6404 mono_mb_patch_branch (mb, label3);
6408 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6410 guint32 label1, label2, label3;
6411 int index_var, src, dest, esize;
6412 MonoMarshalConv conv = -1;
6413 gboolean is_string = FALSE;
6415 g_assert (!t->byref);
6417 eklass = klass->element_class;
6419 mono_marshal_load_type_info (eklass);
6421 if (eklass == mono_defaults.string_class) {
6423 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6426 g_assert_not_reached ();
6430 esize = sizeof (gpointer);
6431 else if (eklass == mono_defaults.char_class)
6432 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6434 esize = mono_class_native_size (eklass, NULL);
6436 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6437 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6439 mono_mb_emit_stloc (mb, src);
6440 mono_mb_emit_ldloc (mb, src);
6441 mono_mb_emit_stloc (mb, 3);
6443 /* Check for null */
6444 mono_mb_emit_ldloc (mb, src);
6445 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6447 /* Allocate native array */
6448 mono_mb_emit_icon (mb, esize);
6449 mono_mb_emit_ldloc (mb, src);
6450 mono_mb_emit_byte (mb, CEE_LDLEN);
6452 if (eklass == mono_defaults.string_class) {
6453 /* Make the array bigger for the terminating null */
6454 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6455 mono_mb_emit_byte (mb, CEE_ADD);
6457 mono_mb_emit_byte (mb, CEE_MUL);
6458 mono_mb_emit_icall (mb, mono_marshal_alloc);
6459 mono_mb_emit_stloc (mb, dest);
6460 mono_mb_emit_ldloc (mb, dest);
6461 mono_mb_emit_stloc (mb, 3);
6463 /* Emit marshalling loop */
6464 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6465 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6466 mono_mb_emit_stloc (mb, index_var);
6467 label2 = mono_mb_get_label (mb);
6468 mono_mb_emit_ldloc (mb, index_var);
6469 mono_mb_emit_ldloc (mb, src);
6470 mono_mb_emit_byte (mb, CEE_LDLEN);
6471 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6473 /* Emit marshalling code */
6475 g_assert (conv != -1);
6478 mono_mb_emit_ldloc (mb, dest);
6481 mono_mb_emit_ldloc (mb, src);
6482 mono_mb_emit_ldloc (mb, index_var);
6484 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6486 mono_mb_emit_icall (mb, conv_to_icall (conv));
6487 mono_mb_emit_byte (mb, CEE_STIND_I);
6490 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6491 mono_mb_emit_exception_marshal_directive (mb, msg);
6495 mono_mb_emit_add_to_local (mb, index_var, 1);
6496 mono_mb_emit_add_to_local (mb, dest, esize);
6498 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6500 mono_mb_patch_branch (mb, label3);
6501 mono_mb_patch_branch (mb, label1);
6505 g_assert_not_reached ();
6512 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6515 return &mono_defaults.int32_class->byval_arg;
6517 switch (spec->native) {
6518 case MONO_NATIVE_I1:
6519 case MONO_NATIVE_U1:
6520 return &mono_defaults.byte_class->byval_arg;
6521 case MONO_NATIVE_VARIANTBOOL:
6522 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6523 return &mono_defaults.int16_class->byval_arg;
6524 case MONO_NATIVE_BOOLEAN:
6525 return &mono_defaults.int32_class->byval_arg;
6527 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6528 return &mono_defaults.int32_class->byval_arg;
6534 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6536 MonoClass* conv_arg_class = mono_defaults.int32_class;
6538 switch (spec->native) {
6539 case MONO_NATIVE_I1:
6540 case MONO_NATIVE_U1:
6541 conv_arg_class = mono_defaults.byte_class;
6542 if (ldop) *ldop = CEE_LDIND_I1;
6544 case MONO_NATIVE_VARIANTBOOL:
6545 conv_arg_class = mono_defaults.int16_class;
6546 if (ldop) *ldop = CEE_LDIND_I2;
6548 case MONO_NATIVE_BOOLEAN:
6551 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6554 return conv_arg_class;
6558 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6559 MonoMarshalSpec *spec,
6560 int conv_arg, MonoType **conv_arg_type,
6561 MarshalAction action)
6565 case MARSHAL_ACTION_CONV_IN:
6567 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6569 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6572 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6573 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6575 *conv_arg_type = &conv_arg_class->this_arg;
6577 *conv_arg_type = &conv_arg_class->byval_arg;
6583 MonoMethodBuilder *mb = m->mb;
6586 case MARSHAL_ACTION_CONV_IN: {
6587 MonoType *local_type;
6589 guint8 ldc_op = CEE_LDC_I4_1;
6591 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6593 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6595 *conv_arg_type = local_type;
6596 conv_arg = mono_mb_add_local (mb, local_type);
6598 mono_mb_emit_ldarg (mb, argnum);
6600 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6601 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6602 mono_mb_emit_byte (mb, ldc_op);
6603 mono_mb_emit_stloc (mb, conv_arg);
6604 mono_mb_patch_branch (mb, label_false);
6609 case MARSHAL_ACTION_CONV_OUT:
6611 int label_false, label_end;
6615 mono_mb_emit_ldarg (mb, argnum);
6616 mono_mb_emit_ldloc (mb, conv_arg);
6618 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6619 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6621 label_end = mono_mb_emit_branch (mb, CEE_BR);
6622 mono_mb_patch_branch (mb, label_false);
6623 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6624 mono_mb_patch_branch (mb, label_end);
6626 mono_mb_emit_byte (mb, CEE_STIND_I1);
6630 case MARSHAL_ACTION_PUSH:
6632 mono_mb_emit_ldloc_addr (mb, conv_arg);
6634 mono_mb_emit_ldloc (mb, conv_arg);
6636 mono_mb_emit_ldarg (mb, argnum);
6639 case MARSHAL_ACTION_CONV_RESULT:
6640 /* maybe we need to make sure that it fits within 8 bits */
6641 mono_mb_emit_stloc (mb, 3);
6644 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6645 MonoClass* conv_arg_class = mono_defaults.int32_class;
6646 guint8 ldop = CEE_LDIND_I4;
6647 int label_null, label_false;
6649 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6650 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6653 *conv_arg_type = &conv_arg_class->this_arg;
6655 *conv_arg_type = &conv_arg_class->byval_arg;
6658 mono_mb_emit_ldarg (mb, argnum);
6662 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6663 mono_mb_emit_ldarg (mb, argnum);
6664 mono_mb_emit_byte (mb, ldop);
6668 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6669 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6670 mono_mb_emit_stloc (mb, conv_arg);
6671 mono_mb_patch_branch (mb, label_false);
6674 mono_mb_patch_branch (mb, label_null);
6678 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6679 guint8 stop = CEE_STIND_I4;
6680 guint8 ldc_op = CEE_LDC_I4_1;
6681 int label_null,label_false, label_end;;
6686 switch (spec->native) {
6687 case MONO_NATIVE_I1:
6688 case MONO_NATIVE_U1:
6689 stop = CEE_STIND_I1;
6691 case MONO_NATIVE_VARIANTBOOL:
6692 stop = CEE_STIND_I2;
6693 ldc_op = CEE_LDC_I4_M1;
6701 mono_mb_emit_ldarg (mb, argnum);
6702 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6704 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_ldloc (mb, conv_arg);
6707 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6708 mono_mb_emit_byte (mb, ldc_op);
6709 label_end = mono_mb_emit_branch (mb, CEE_BR);
6711 mono_mb_patch_branch (mb, label_false);
6712 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6713 mono_mb_patch_branch (mb, label_end);
6715 mono_mb_emit_byte (mb, stop);
6716 mono_mb_patch_branch (mb, label_null);
6721 g_assert_not_reached ();
6728 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6729 MonoMarshalSpec *spec, int conv_arg,
6730 MonoType **conv_arg_type, MarshalAction action)
6733 MonoMethodBuilder *mb = m->mb;
6736 case MARSHAL_ACTION_CONV_IN:
6737 /* MS seems to allow this in some cases, ie. bxc #158 */
6739 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6740 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6741 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6746 case MARSHAL_ACTION_PUSH:
6747 mono_mb_emit_ldarg (mb, argnum);
6750 case MARSHAL_ACTION_CONV_RESULT:
6751 /* no conversions necessary */
6752 mono_mb_emit_stloc (mb, 3);
6763 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6764 MonoMarshalSpec *spec, int conv_arg,
6765 MonoType **conv_arg_type, MarshalAction action)
6768 MonoMethodBuilder *mb = m->mb;
6771 case MARSHAL_ACTION_PUSH:
6772 /* fixme: dont know how to marshal that. We cant simply
6773 * convert it to a one byte UTF8 character, because an
6774 * unicode character may need more that one byte in UTF8 */
6775 mono_mb_emit_ldarg (mb, argnum);
6778 case MARSHAL_ACTION_CONV_RESULT:
6779 /* fixme: we need conversions here */
6780 mono_mb_emit_stloc (mb, 3);
6791 emit_marshal_scalar (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 mono_mb_emit_ldarg (mb, argnum);
6803 case MARSHAL_ACTION_CONV_RESULT:
6804 /* no conversions necessary */
6805 mono_mb_emit_stloc (mb, 3);
6816 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6817 MonoMarshalSpec *spec, int conv_arg,
6818 MonoType **conv_arg_type, MarshalAction action)
6820 /* Ensure that we have marshalling info for this param */
6821 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6823 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6824 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6826 if (spec && spec->native == MONO_NATIVE_ASANY)
6827 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6830 case MONO_TYPE_VALUETYPE:
6831 if (t->data.klass == mono_defaults.handleref_class)
6832 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6834 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6835 case MONO_TYPE_STRING:
6836 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6837 case MONO_TYPE_CLASS:
6838 case MONO_TYPE_OBJECT:
6840 if (spec && spec->native == MONO_NATIVE_STRUCT)
6841 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6843 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6844 spec->native == MONO_NATIVE_IDISPATCH ||
6845 spec->native == MONO_NATIVE_INTERFACE))
6846 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6847 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6848 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6849 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6850 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6853 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6854 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6855 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6857 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6858 case MONO_TYPE_ARRAY:
6859 case MONO_TYPE_SZARRAY:
6860 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6861 case MONO_TYPE_BOOLEAN:
6862 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6864 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6865 case MONO_TYPE_CHAR:
6866 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6879 case MONO_TYPE_FNPTR:
6880 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6881 case MONO_TYPE_GENERICINST:
6882 if (mono_type_generic_inst_is_valuetype (t))
6883 return emit_marshal_vtype (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);
6892 * mono_marshal_emit_native_wrapper:
6893 * @image: the image to use for looking up custom marshallers
6894 * @sig: The signature of the native function
6895 * @piinfo: Marshalling information
6896 * @mspecs: Marshalling information
6897 * @aot: whenever the created method will be compiled by the AOT compiler
6898 * @method: if non-NULL, the pinvoke method to call
6899 * @check_exceptions: Whenever to check for pending exceptions after the native call
6900 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6902 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6905 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)
6907 EmitMarshalContext m;
6908 MonoMethodSignature *csig;
6910 int i, argnum, *tmp_locals;
6911 int type, param_shift = 0;
6912 static MonoMethodSignature *get_last_error_sig = NULL;
6917 /* we copy the signature, so that we can set pinvoke to 0 */
6919 /* The function address is passed as the first argument */
6920 g_assert (!sig->hasthis);
6923 csig = signature_dup (mb->method->klass->image, sig);
6931 /* we allocate local for use with emit_struct_conv() */
6932 /* allocate local 0 (pointer) src_ptr */
6933 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6934 /* allocate local 1 (pointer) dst_ptr */
6935 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6936 /* allocate local 2 (boolean) delete_old */
6937 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6939 /* delete_old = FALSE */
6940 mono_mb_emit_icon (mb, 0);
6941 mono_mb_emit_stloc (mb, 2);
6943 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6944 /* allocate local 3 to store the return value */
6945 mono_mb_add_local (mb, sig->ret);
6948 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6949 /* Return type custom marshaling */
6951 * Since we can't determine the return type of the unmanaged function,
6952 * we assume it returns a pointer, and pass that pointer to
6953 * MarshalNativeToManaged.
6955 csig->ret = &mono_defaults.int_class->byval_arg;
6958 /* we first do all conversions */
6959 tmp_locals = alloca (sizeof (int) * sig->param_count);
6960 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6962 for (i = 0; i < sig->param_count; i ++) {
6963 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6966 /* push all arguments */
6969 mono_mb_emit_byte (mb, CEE_LDARG_0);
6971 for (i = 0; i < sig->param_count; i++) {
6972 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
6975 /* call the native method */
6977 mono_mb_emit_byte (mb, CEE_LDARG_0);
6978 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
6979 mono_mb_emit_byte (mb, CEE_LDIND_I);
6980 mono_mb_emit_calli (mb, csig);
6981 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
6983 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
6985 g_assert_not_reached ();
6990 /* Reuse the ICALL_ADDR opcode for pinvokes too */
6991 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6992 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
6993 mono_mb_emit_calli (mb, csig);
6995 mono_mb_emit_native_call (mb, csig, func);
6999 /* Set LastError if needed */
7000 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7001 if (!get_last_error_sig) {
7002 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7003 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7004 get_last_error_sig->pinvoke = 1;
7009 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7010 * clobber its value.
7012 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7013 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7015 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7019 /* convert the result */
7020 if (!sig->ret->byref) {
7021 MonoMarshalSpec *spec = mspecs [0];
7022 type = sig->ret->type;
7024 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7025 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7030 case MONO_TYPE_VOID:
7032 case MONO_TYPE_VALUETYPE:
7033 klass = sig->ret->data.klass;
7034 if (klass->enumtype) {
7035 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7038 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7052 case MONO_TYPE_FNPTR:
7053 case MONO_TYPE_STRING:
7054 case MONO_TYPE_CLASS:
7055 case MONO_TYPE_OBJECT:
7056 case MONO_TYPE_BOOLEAN:
7057 case MONO_TYPE_ARRAY:
7058 case MONO_TYPE_SZARRAY:
7059 case MONO_TYPE_CHAR:
7061 case MONO_TYPE_GENERICINST:
7062 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7064 case MONO_TYPE_TYPEDBYREF:
7066 g_warning ("return type 0x%02x unknown", sig->ret->type);
7067 g_assert_not_reached ();
7071 mono_mb_emit_stloc (mb, 3);
7075 * Need to call this after converting the result since MONO_VTADDR needs
7076 * to be adjacent to the call instruction.
7078 if (check_exceptions)
7079 emit_thread_interrupt_checkpoint (mb);
7081 /* we need to convert byref arguments back and free string arrays */
7082 for (i = 0; i < sig->param_count; i++) {
7083 MonoType *t = sig->params [i];
7084 MonoMarshalSpec *spec = mspecs [i + 1];
7086 argnum = i + param_shift;
7088 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7089 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7094 case MONO_TYPE_STRING:
7095 case MONO_TYPE_VALUETYPE:
7096 case MONO_TYPE_CLASS:
7097 case MONO_TYPE_OBJECT:
7098 case MONO_TYPE_SZARRAY:
7099 case MONO_TYPE_BOOLEAN:
7100 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7105 if (!MONO_TYPE_IS_VOID(sig->ret))
7106 mono_mb_emit_ldloc (mb, 3);
7108 mono_mb_emit_byte (mb, CEE_RET);
7110 #endif /* DISABLE_JIT */
7113 G_GNUC_UNUSED static void
7114 code_for (MonoMethod *method) {
7115 MonoMethodHeader *header = mono_method_get_header (method);
7116 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));
7120 * mono_marshal_get_native_wrapper:
7121 * @method: The MonoMethod to wrap.
7122 * @check_exceptions: Whenever to check for pending exceptions
7124 * generates IL code for the pinvoke wrapper (the generated method
7125 * calls the unmanaged code in piinfo->addr)
7126 * The wrapper info for the wrapper is a WrapperInfo structure.
7129 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7131 MonoMethodSignature *sig, *csig;
7132 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7133 MonoMethodBuilder *mb;
7134 MonoMarshalSpec **mspecs;
7137 gboolean pinvoke = FALSE;
7140 const char *exc_class = "MissingMethodException";
7141 const char *exc_arg = NULL;
7144 g_assert (method != NULL);
7145 g_assert (mono_method_signature (method)->pinvoke);
7148 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7150 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7151 if ((res = mono_marshal_find_in_cache (cache, method)))
7154 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7155 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7159 return mono_cominterop_get_native_wrapper (method);
7161 g_assert_not_reached ();
7165 sig = mono_method_signature (method);
7167 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7168 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7171 if (!piinfo->addr) {
7173 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7174 exc_arg = "Method contains unsupported native code";
7176 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7178 piinfo->addr = mono_lookup_internal_call (method);
7182 /* hack - redirect certain string constructors to CreateString */
7183 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7184 g_assert (!pinvoke);
7185 g_assert (method->string_ctor);
7186 g_assert (sig->hasthis);
7188 /* CreateString returns a value */
7189 csig = signature_dup (method->klass->image, sig);
7190 csig->ret = &mono_defaults.string_class->byval_arg;
7194 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7195 if (!strcmp ("CreateString", res->name) &&
7196 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7199 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7200 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7202 /* create a wrapper to preserve .ctor in stack trace */
7203 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7206 mono_mb_emit_byte (mb, CEE_LDARG_0);
7207 for (i = 1; i <= csig->param_count; i++)
7208 mono_mb_emit_ldarg (mb, i);
7209 mono_mb_emit_managed_call (mb, res, NULL);
7210 mono_mb_emit_byte (mb, CEE_RET);
7213 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7214 info->d.string_ctor.method = method;
7216 /* use native_wrapper_cache because internal calls are looked up there */
7217 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7218 csig->param_count + 1, info, NULL);
7225 /* exception will be thrown */
7226 piinfo->addr = NULL;
7227 g_warning ("cannot find CreateString for .ctor");
7230 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7232 mb->method->save_lmf = 1;
7235 * In AOT mode and embedding scenarios, it is possible that the icall is not
7236 * registered in the runtime doing the AOT compilation.
7238 if (!piinfo->addr && !aot) {
7240 mono_mb_emit_exception (mb, exc_class, exc_arg);
7242 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7243 info->d.managed_to_native.method = method;
7245 csig = signature_dup (method->klass->image, sig);
7247 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7248 csig->param_count + 16, info, NULL);
7254 /* internal calls: we simply push all arguments and call the method (no conversions) */
7255 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7257 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7259 csig = signature_dup (method->klass->image, sig);
7261 /* hack - string constructors returns a value */
7262 if (method->string_ctor)
7263 csig->ret = &mono_defaults.string_class->byval_arg;
7270 * Add a null check since public icalls can be called with 'call' which
7271 * does no such check.
7273 mono_mb_emit_byte (mb, CEE_LDARG_0);
7274 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7275 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7276 mono_mb_patch_branch (mb, pos);
7278 mono_mb_emit_byte (mb, CEE_LDARG_0);
7281 for (i = 0; i < sig->param_count; i++)
7282 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7285 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7286 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7287 mono_mb_emit_calli (mb, csig);
7289 g_assert (piinfo->addr);
7290 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7292 if (check_exceptions)
7293 emit_thread_interrupt_checkpoint (mb);
7294 mono_mb_emit_byte (mb, CEE_RET);
7296 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7297 info->d.managed_to_native.method = method;
7299 csig = signature_dup (method->klass->image, csig);
7301 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7310 g_assert (piinfo->addr);
7313 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7314 mono_method_get_marshal_info (method, mspecs);
7316 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7318 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7319 info->d.managed_to_native.method = method;
7321 csig = signature_dup (method->klass->image, sig);
7323 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7328 for (i = sig->param_count; i >= 0; i--)
7330 mono_metadata_free_marshal_spec (mspecs [i]);
7334 /* code_for (res); */
7340 * mono_marshal_get_native_func_wrapper:
7341 * @image: The image to use for memory allocation and for looking up custom marshallers.
7342 * @sig: The signature of the function
7343 * @func: The native function to wrap
7345 * Returns a wrapper method around native functions, similar to the pinvoke
7349 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7350 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7352 MonoMethodSignature *csig;
7354 MonoMethodBuilder *mb;
7359 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7360 if ((res = mono_marshal_find_in_cache (cache, func)))
7363 name = g_strdup_printf ("wrapper_native_%p", func);
7364 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7365 mb->method->save_lmf = 1;
7368 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7371 csig = signature_dup (image, sig);
7373 res = mono_mb_create_and_cache (cache, func,
7374 mb, csig, csig->param_count + 16);
7377 mono_marshal_set_wrapper_info (res, NULL);
7383 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7387 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7389 MonoMethodSignature *sig, *csig;
7390 MonoMethodBuilder *mb;
7395 MonoMethodPInvoke mpiinfo;
7396 MonoMethodPInvoke *piinfo = &mpiinfo;
7397 MonoMarshalSpec **mspecs;
7398 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7399 MonoImage *image = invoke->klass->image;
7402 // FIXME: include UnmanagedFunctionPointerAttribute info
7405 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7407 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7408 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7411 memset (&mpiinfo, 0, sizeof (mpiinfo));
7412 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7414 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7415 mono_method_get_marshal_info (invoke, mspecs);
7416 /* Freed below so don't alloc from mempool */
7417 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7420 name = g_strdup_printf ("wrapper_aot_native");
7421 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7422 mb->method->save_lmf = 1;
7425 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7428 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7429 info->d.managed_to_native.method = invoke;
7431 g_assert (!sig->hasthis);
7432 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7434 res = mono_mb_create_and_cache_full (cache, invoke,
7435 mb, csig, csig->param_count + 16,
7439 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7441 mono_metadata_free_marshal_spec (mspecs [i]);
7449 * mono_marshal_emit_managed_wrapper:
7451 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7452 * the delegate which wraps the managed method to be called. For closed delegates,
7453 * it could have fewer parameters than the method it wraps.
7454 * THIS_LOC is the memory location where the target of the delegate is stored.
7457 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7460 MonoMethodSignature *sig, *csig;
7466 /* we first do all conversions */
7467 for (i = 0; i < sig->param_count; i ++) {
7468 MonoType *t = sig->params [i];
7471 case MONO_TYPE_OBJECT:
7472 case MONO_TYPE_CLASS:
7473 case MONO_TYPE_VALUETYPE:
7474 case MONO_TYPE_ARRAY:
7475 case MONO_TYPE_SZARRAY:
7476 case MONO_TYPE_STRING:
7477 case MONO_TYPE_BOOLEAN:
7478 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7482 if (!sig->ret->byref) {
7483 switch (sig->ret->type) {
7484 case MONO_TYPE_STRING:
7485 csig->ret = &mono_defaults.int_class->byval_arg;
7492 MonoMethodSignature *sig, *csig;
7494 gboolean closed = FALSE;
7499 /* allocate local 0 (pointer) src_ptr */
7500 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7501 /* allocate local 1 (pointer) dst_ptr */
7502 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7503 /* allocate local 2 (boolean) delete_old */
7504 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7506 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7507 /* Closed delegate */
7508 g_assert (sig->param_count == invoke_sig->param_count + 1);
7510 /* Use a new signature without the first argument */
7511 sig = mono_metadata_signature_dup (sig);
7512 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7513 sig->param_count --;
7516 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7517 /* allocate local 3 to store the return value */
7518 mono_mb_add_local (mb, sig->ret);
7521 mono_mb_emit_icon (mb, 0);
7522 mono_mb_emit_stloc (mb, 2);
7525 * Might need to attach the thread to the JIT or change the
7526 * domain for the callback.
7528 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7529 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7531 /* we first do all conversions */
7532 tmp_locals = alloca (sizeof (int) * sig->param_count);
7533 for (i = 0; i < sig->param_count; i ++) {
7534 MonoType *t = sig->params [i];
7537 case MONO_TYPE_OBJECT:
7538 case MONO_TYPE_CLASS:
7539 case MONO_TYPE_VALUETYPE:
7540 case MONO_TYPE_ARRAY:
7541 case MONO_TYPE_SZARRAY:
7542 case MONO_TYPE_STRING:
7543 case MONO_TYPE_BOOLEAN:
7544 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7553 emit_thread_interrupt_checkpoint (mb);
7556 if (target_handle) {
7557 mono_mb_emit_icon (mb, (gint32)target_handle);
7558 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7561 g_assert_not_reached ();
7563 } else if (closed) {
7564 mono_mb_emit_icon (mb, (gint32)target_handle);
7565 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7568 for (i = 0; i < sig->param_count; i++) {
7569 MonoType *t = sig->params [i];
7571 if (tmp_locals [i]) {
7573 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7575 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7578 mono_mb_emit_ldarg (mb, i);
7581 mono_mb_emit_managed_call (mb, method, NULL);
7583 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7584 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7585 } else if (!sig->ret->byref) {
7586 switch (sig->ret->type) {
7587 case MONO_TYPE_VOID:
7589 case MONO_TYPE_BOOLEAN:
7592 case MONO_TYPE_CHAR:
7604 case MONO_TYPE_OBJECT:
7605 mono_mb_emit_stloc (mb, 3);
7607 case MONO_TYPE_STRING:
7608 csig->ret = &mono_defaults.int_class->byval_arg;
7609 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7611 case MONO_TYPE_VALUETYPE:
7612 case MONO_TYPE_CLASS:
7613 case MONO_TYPE_SZARRAY:
7614 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7617 g_warning ("return type 0x%02x unknown", sig->ret->type);
7618 g_assert_not_reached ();
7621 mono_mb_emit_stloc (mb, 3);
7624 /* Convert byref arguments back */
7625 for (i = 0; i < sig->param_count; i ++) {
7626 MonoType *t = sig->params [i];
7627 MonoMarshalSpec *spec = mspecs [i + 1];
7629 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7630 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7632 else if (t->byref) {
7634 case MONO_TYPE_CLASS:
7635 case MONO_TYPE_VALUETYPE:
7636 case MONO_TYPE_OBJECT:
7637 case MONO_TYPE_STRING:
7638 case MONO_TYPE_BOOLEAN:
7639 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7643 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7644 /* The [Out] information is encoded in the delegate signature */
7646 case MONO_TYPE_SZARRAY:
7647 case MONO_TYPE_CLASS:
7648 case MONO_TYPE_VALUETYPE:
7649 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7652 g_assert_not_reached ();
7657 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7658 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7660 if (m->retobj_var) {
7661 mono_mb_emit_ldloc (mb, m->retobj_var);
7662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7663 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7666 if (!MONO_TYPE_IS_VOID(sig->ret))
7667 mono_mb_emit_ldloc (mb, 3);
7668 mono_mb_emit_byte (mb, CEE_RET);
7677 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7679 MonoMethodSignature *sig;
7684 * Under windows, delegates passed to native code must use the STDCALL
7685 * calling convention.
7687 csig->call_convention = MONO_CALL_STDCALL;
7690 sig = mono_method_signature (method);
7692 /* Change default calling convention if needed */
7693 /* Why is this a modopt ? */
7694 if (sig->ret && sig->ret->num_mods) {
7695 for (i = 0; i < sig->ret->num_mods; ++i) {
7697 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7698 g_assert (mono_error_ok (&error));
7699 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7700 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7701 csig->call_convention = MONO_CALL_C;
7702 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7703 csig->call_convention = MONO_CALL_STDCALL;
7704 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7705 csig->call_convention = MONO_CALL_FASTCALL;
7706 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7707 csig->call_convention = MONO_CALL_THISCALL;
7714 * generates IL code to call managed methods from unmanaged code
7715 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7718 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7720 static MonoClass *UnmanagedFunctionPointerAttribute;
7721 MonoMethodSignature *sig, *csig, *invoke_sig;
7722 MonoMethodBuilder *mb;
7723 MonoMethod *res, *invoke;
7724 MonoMarshalSpec **mspecs;
7725 MonoMethodPInvoke piinfo;
7728 EmitMarshalContext m;
7730 g_assert (method != NULL);
7731 g_assert (!mono_method_signature (method)->pinvoke);
7734 * FIXME: Should cache the method+delegate type pair, since the same method
7735 * could be called with different delegates, thus different marshalling
7738 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7739 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7742 invoke = mono_get_delegate_invoke (delegate_klass);
7743 invoke_sig = mono_method_signature (invoke);
7745 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7746 mono_method_get_marshal_info (invoke, mspecs);
7748 sig = mono_method_signature (method);
7750 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7752 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7753 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7755 /* we copy the signature, so that we can modify it */
7757 /* Need to free this later */
7758 csig = mono_metadata_signature_dup (invoke_sig);
7760 csig = signature_dup (method->klass->image, invoke_sig);
7769 m.image = method->klass->image;
7771 mono_marshal_set_callconv_from_modopt (invoke, csig);
7773 /* Handle the UnmanagedFunctionPointerAttribute */
7774 if (!UnmanagedFunctionPointerAttribute)
7775 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7777 /* The attribute is only available in Net 2.0 */
7778 if (UnmanagedFunctionPointerAttribute) {
7779 MonoCustomAttrInfo *cinfo;
7780 MonoCustomAttrEntry *attr;
7783 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7784 * contents of the attribute without constructing it, as that might not be
7785 * possible when running in cross-compiling mode.
7787 cinfo = mono_custom_attrs_from_class (delegate_klass);
7790 for (i = 0; i < cinfo->num_attrs; ++i) {
7791 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7792 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7793 attr = &cinfo->attrs [i];
7799 MonoArray *typed_args, *named_args;
7800 CattrNamedArg *arginfo;
7804 MonoBoolean set_last_error = 0;
7805 MonoBoolean best_fit_mapping = 0;
7806 MonoBoolean throw_on_unmappable = 0;
7809 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7810 g_assert (mono_error_ok (&error));
7811 g_assert (mono_array_length (typed_args) == 1);
7814 o = mono_array_get (typed_args, MonoObject*, 0);
7815 call_conv = *(gint32*)mono_object_unbox (o);
7818 for (i = 0; i < mono_array_length (named_args); ++i) {
7819 CattrNamedArg *narg = &arginfo [i];
7821 o = mono_array_get (named_args, MonoObject*, i);
7823 g_assert (narg->field);
7824 if (!strcmp (narg->field->name, "CharSet")) {
7825 charset = *(gint32*)mono_object_unbox (o);
7826 } else if (!strcmp (narg->field->name, "SetLastError")) {
7827 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7828 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7829 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7830 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7831 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7833 g_assert_not_reached ();
7839 memset (&piinfo, 0, sizeof (piinfo));
7841 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7843 csig->call_convention = call_conv - 1;
7846 if (cinfo && !cinfo->cached)
7847 mono_custom_attrs_free (cinfo);
7850 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7852 if (!target_handle) {
7855 // FIXME: Associate it with the method+delegate_klass pair
7856 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7857 info->d.native_to_managed.method = method;
7858 info->d.native_to_managed.klass = delegate_klass;
7860 res = mono_mb_create_and_cache_full (cache, method,
7861 mb, csig, sig->param_count + 16,
7867 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7871 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7873 mono_metadata_free_marshal_spec (mspecs [i]);
7876 /* code_for (res); */
7882 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7885 MonoMethodSignature *sig;
7886 MonoMethodBuilder *mb;
7891 method = mono_get_method (image, token, NULL);
7894 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7895 MonoMethodSignature *csig;
7896 MonoMarshalSpec **mspecs;
7897 EmitMarshalContext m;
7899 sig = mono_method_signature (method);
7900 g_assert (!sig->hasthis);
7902 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7903 mono_method_get_marshal_info (method, mspecs);
7905 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7906 csig = signature_dup (image, sig);
7917 mono_marshal_set_callconv_from_modopt (method, csig);
7919 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7921 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7926 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7929 for (i = sig->param_count; i >= 0; i--)
7931 mono_metadata_free_marshal_spec (mspecs [i]);
7934 return mono_compile_method (method);
7937 sig = mono_method_signature (method);
7938 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7940 param_count = sig->param_count + sig->hasthis;
7942 for (i = 0; i < param_count; i++)
7943 mono_mb_emit_ldarg (mb, i);
7945 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7946 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7948 mono_mb_emit_op (mb, CEE_CALL, method);
7949 mono_mb_emit_byte (mb, CEE_RET);
7954 method = mono_mb_create (mb, sig, param_count, NULL);
7957 return mono_compile_method (method);
7961 * This does the equivalent of mono_object_castclass_with_cache.
7962 * The wrapper info for the wrapper is a WrapperInfo structure.
7965 mono_marshal_get_castclass_with_cache (void)
7967 static MonoMethod *cached;
7969 MonoMethodBuilder *mb;
7970 MonoMethodSignature *sig;
7971 int return_null_pos, cache_miss_pos, invalid_cast_pos;
7977 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
7978 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
7979 sig->params [0] = &mono_defaults.object_class->byval_arg;
7980 sig->params [1] = &mono_defaults.int_class->byval_arg;
7981 sig->params [2] = &mono_defaults.int_class->byval_arg;
7982 sig->ret = &mono_defaults.object_class->byval_arg;
7986 /* allocate local 0 (pointer) obj_vtable */
7987 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7990 mono_mb_emit_ldarg (mb, 0);
7991 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7993 /*obj_vtable = obj->vtable;*/
7994 mono_mb_emit_ldarg (mb, 0);
7995 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
7996 mono_mb_emit_byte (mb, CEE_LDIND_I);
7997 mono_mb_emit_stloc (mb, 0);
8000 mono_mb_emit_ldarg (mb, 2);
8001 mono_mb_emit_byte (mb, CEE_LDIND_I);
8002 mono_mb_emit_ldloc (mb, 0);
8004 /*if (*cache == obj_vtable)*/
8005 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8008 mono_mb_emit_ldarg (mb, 0);
8009 mono_mb_emit_byte (mb, CEE_RET);
8011 mono_mb_patch_branch (mb, cache_miss_pos);
8012 /*if (mono_object_isinst (obj, klass)) */
8013 mono_mb_emit_ldarg (mb, 0);
8014 mono_mb_emit_ldarg (mb, 1);
8015 mono_mb_emit_icall (mb, mono_object_isinst);
8016 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8018 /**cache = obj_vtable;*/
8019 mono_mb_emit_ldarg (mb, 2);
8020 mono_mb_emit_ldloc (mb, 0);
8021 mono_mb_emit_byte (mb, CEE_STIND_I);
8024 mono_mb_emit_ldarg (mb, 0);
8025 mono_mb_emit_byte (mb, CEE_RET);
8028 mono_mb_patch_branch (mb, invalid_cast_pos);
8029 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8032 mono_mb_patch_branch (mb, return_null_pos);
8033 mono_mb_emit_byte (mb, CEE_LDNULL);
8034 mono_mb_emit_byte (mb, CEE_RET);
8035 #endif /* DISABLE_JIT */
8037 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8038 res = mono_mb_create (mb, sig, 8, info);
8041 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8042 mono_free_method (res);
8043 mono_metadata_free_method_signature (sig);
8051 * This does the equivalent of mono_object_isinst_with_cache.
8052 * The wrapper info for the wrapper is a WrapperInfo structure.
8055 mono_marshal_get_isinst_with_cache (void)
8057 static MonoMethod *cached;
8059 MonoMethodBuilder *mb;
8060 MonoMethodSignature *sig;
8061 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8067 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8068 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8069 sig->params [0] = &mono_defaults.object_class->byval_arg;
8070 sig->params [1] = &mono_defaults.int_class->byval_arg;
8071 sig->params [2] = &mono_defaults.int_class->byval_arg;
8072 sig->ret = &mono_defaults.object_class->byval_arg;
8076 /* allocate local 0 (pointer) obj_vtable */
8077 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8078 /* allocate local 1 (pointer) cached_vtable */
8079 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8082 mono_mb_emit_ldarg (mb, 0);
8083 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8085 /*obj_vtable = obj->vtable;*/
8086 mono_mb_emit_ldarg (mb, 0);
8087 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8088 mono_mb_emit_byte (mb, CEE_LDIND_I);
8089 mono_mb_emit_stloc (mb, 0);
8091 /* cached_vtable = *cache*/
8092 mono_mb_emit_ldarg (mb, 2);
8093 mono_mb_emit_byte (mb, CEE_LDIND_I);
8094 mono_mb_emit_stloc (mb, 1);
8096 mono_mb_emit_ldloc (mb, 1);
8097 mono_mb_emit_byte (mb, CEE_LDC_I4);
8098 mono_mb_emit_i4 (mb, ~0x1);
8099 mono_mb_emit_byte (mb, CEE_CONV_U);
8100 mono_mb_emit_byte (mb, CEE_AND);
8101 mono_mb_emit_ldloc (mb, 0);
8102 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8103 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8105 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8106 mono_mb_emit_ldloc (mb, 1);
8107 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8108 mono_mb_emit_byte (mb, CEE_CONV_U);
8109 mono_mb_emit_byte (mb, CEE_AND);
8110 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8113 mono_mb_emit_ldarg (mb, 0);
8114 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8117 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8118 mono_mb_emit_byte (mb, CEE_LDNULL);
8120 mono_mb_patch_branch (mb, cache_hit_pos);
8121 mono_mb_emit_byte (mb, CEE_RET);
8123 mono_mb_patch_branch (mb, cache_miss_pos);
8124 /*if (mono_object_isinst (obj, klass)) */
8125 mono_mb_emit_ldarg (mb, 0);
8126 mono_mb_emit_ldarg (mb, 1);
8127 mono_mb_emit_icall (mb, mono_object_isinst);
8128 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8130 /**cache = obj_vtable;*/
8131 mono_mb_emit_ldarg (mb, 2);
8132 mono_mb_emit_ldloc (mb, 0);
8133 mono_mb_emit_byte (mb, CEE_STIND_I);
8136 mono_mb_emit_ldarg (mb, 0);
8137 mono_mb_emit_byte (mb, CEE_RET);
8140 mono_mb_patch_branch (mb, not_an_instance_pos);
8141 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8142 mono_mb_emit_ldarg (mb, 2);
8143 /*obj_vtable | 0x1*/
8144 mono_mb_emit_ldloc (mb, 0);
8145 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8146 mono_mb_emit_byte (mb, CEE_CONV_U);
8147 mono_mb_emit_byte (mb, CEE_OR);
8150 mono_mb_emit_byte (mb, CEE_STIND_I);
8153 mono_mb_patch_branch (mb, return_null_pos);
8154 mono_mb_emit_byte (mb, CEE_LDNULL);
8155 mono_mb_emit_byte (mb, CEE_RET);
8158 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8159 res = mono_mb_create (mb, sig, 8, info);
8162 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8163 mono_free_method (res);
8164 mono_metadata_free_method_signature (sig);
8172 * mono_marshal_get_isinst:
8173 * @klass: the type of the field
8175 * This method generates a function which can be used to check if an object is
8176 * an instance of the given type, icluding the case where the object is a proxy.
8177 * The generated function has the following signature:
8178 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8181 mono_marshal_get_isinst (MonoClass *klass)
8183 static MonoMethodSignature *isint_sig = NULL;
8187 int pos_was_ok, pos_end;
8188 #ifndef DISABLE_REMOTING
8189 int pos_end2, pos_failed;
8192 MonoMethodBuilder *mb;
8194 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8195 if ((res = mono_marshal_find_in_cache (cache, klass)))
8199 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8200 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8201 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8202 isint_sig->pinvoke = 0;
8205 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8206 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8209 mb->method->save_lmf = 1;
8212 /* check if the object is a proxy that needs special cast */
8213 mono_mb_emit_ldarg (mb, 0);
8214 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8215 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8217 /* The result of MONO_CISINST can be:
8218 0) the type check succeeded
8219 1) the type check did not succeed
8220 2) a CanCastTo call is needed */
8221 #ifndef DISABLE_REMOTING
8222 mono_mb_emit_byte (mb, CEE_DUP);
8223 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8225 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8226 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8228 /* get the real proxy from the transparent proxy*/
8230 mono_mb_emit_ldarg (mb, 0);
8231 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8232 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8236 mono_mb_patch_branch (mb, pos_failed);
8237 mono_mb_emit_byte (mb, CEE_LDNULL);
8238 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8242 mono_mb_patch_branch (mb, pos_was_ok);
8243 mono_mb_emit_byte (mb, CEE_POP);
8244 mono_mb_emit_ldarg (mb, 0);
8248 mono_mb_patch_branch (mb, pos_end);
8249 mono_mb_patch_branch (mb, pos_end2);
8250 mono_mb_emit_byte (mb, CEE_RET);
8252 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8256 mono_mb_emit_byte (mb, CEE_LDNULL);
8257 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8261 mono_mb_patch_branch (mb, pos_was_ok);
8262 mono_mb_emit_ldarg (mb, 0);
8266 mono_mb_patch_branch (mb, pos_end);
8267 mono_mb_emit_byte (mb, CEE_RET);
8268 #endif /* DISABLE_REMOTING */
8269 #endif /* DISABLE_JIT */
8271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8272 info->d.proxy.klass = klass;
8273 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8280 * mono_marshal_get_castclass:
8281 * @klass: the type of the field
8283 * This method generates a function which can be used to cast an object to
8284 * an instance of the given type, icluding the case where the object is a proxy.
8285 * The generated function has the following signature:
8286 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8287 * The wrapper info for the wrapper is a WrapperInfo structure.
8290 mono_marshal_get_castclass (MonoClass *klass)
8292 static MonoMethodSignature *castclass_sig = NULL;
8295 #ifndef DISABLE_REMOTING
8296 int pos_was_ok, pos_was_ok2;
8299 MonoMethodBuilder *mb;
8302 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8303 if ((res = mono_marshal_find_in_cache (cache, klass)))
8306 if (!castclass_sig) {
8307 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8308 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8309 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8310 castclass_sig->pinvoke = 0;
8313 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8314 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8317 mb->method->save_lmf = 1;
8320 /* check if the object is a proxy that needs special cast */
8321 mono_mb_emit_ldarg (mb, 0);
8322 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8323 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8325 /* The result of MONO_CCASTCLASS can be:
8326 0) the cast is valid
8327 1) cast of unknown proxy type
8328 or an exception if the cast is is invalid
8330 #ifndef DISABLE_REMOTING
8331 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8333 /* get the real proxy from the transparent proxy*/
8335 mono_mb_emit_ldarg (mb, 0);
8336 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8337 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8340 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8343 mono_mb_patch_branch (mb, pos_was_ok);
8344 mono_mb_patch_branch (mb, pos_was_ok2);
8346 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8347 mono_mb_emit_byte (mb, CEE_POP);
8348 #endif /* DISABLE_REMOTING */
8350 mono_mb_emit_ldarg (mb, 0);
8353 mono_mb_emit_byte (mb, CEE_RET);
8354 #endif /* DISABLE_JIT */
8356 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8358 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8366 * mono_marshal_get_struct_to_ptr:
8369 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8370 * The wrapper info for the wrapper is a WrapperInfo structure.
8373 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8375 MonoMethodBuilder *mb;
8376 static MonoMethod *stoptr = NULL;
8380 g_assert (klass != NULL);
8382 mono_marshal_load_type_info (klass);
8384 if (klass->marshal_info->str_to_ptr)
8385 return klass->marshal_info->str_to_ptr;
8388 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8391 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8394 if (klass->blittable) {
8395 mono_mb_emit_byte (mb, CEE_LDARG_1);
8396 mono_mb_emit_byte (mb, CEE_LDARG_0);
8397 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8398 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8399 mono_mb_emit_byte (mb, CEE_PREFIX1);
8400 mono_mb_emit_byte (mb, CEE_CPBLK);
8403 /* allocate local 0 (pointer) src_ptr */
8404 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8405 /* allocate local 1 (pointer) dst_ptr */
8406 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8407 /* allocate local 2 (boolean) delete_old */
8408 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8409 mono_mb_emit_byte (mb, CEE_LDARG_2);
8410 mono_mb_emit_stloc (mb, 2);
8412 /* initialize src_ptr to point to the start of object data */
8413 mono_mb_emit_byte (mb, CEE_LDARG_0);
8414 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8415 mono_mb_emit_stloc (mb, 0);
8417 /* initialize dst_ptr */
8418 mono_mb_emit_byte (mb, CEE_LDARG_1);
8419 mono_mb_emit_stloc (mb, 1);
8421 emit_struct_conv (mb, klass, FALSE);
8424 mono_mb_emit_byte (mb, CEE_RET);
8426 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8427 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8430 klass->marshal_info->str_to_ptr = res;
8435 * mono_marshal_get_ptr_to_struct:
8438 * generates IL code for PtrToStructure (IntPtr src, object structure)
8439 * The wrapper info for the wrapper is a WrapperInfo structure.
8442 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8444 MonoMethodBuilder *mb;
8445 static MonoMethodSignature *ptostr = NULL;
8449 g_assert (klass != NULL);
8451 mono_marshal_load_type_info (klass);
8453 if (klass->marshal_info->ptr_to_str)
8454 return klass->marshal_info->ptr_to_str;
8457 MonoMethodSignature *sig;
8459 /* Create the signature corresponding to
8460 static void PtrToStructure (IntPtr ptr, object structure);
8461 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8462 sig = mono_create_icall_signature ("void ptr object");
8463 sig = signature_dup (mono_defaults.corlib, sig);
8465 mono_memory_barrier ();
8469 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8472 if (klass->blittable) {
8473 mono_mb_emit_byte (mb, CEE_LDARG_1);
8474 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8475 mono_mb_emit_byte (mb, CEE_LDARG_0);
8476 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8477 mono_mb_emit_byte (mb, CEE_PREFIX1);
8478 mono_mb_emit_byte (mb, CEE_CPBLK);
8481 /* allocate local 0 (pointer) src_ptr */
8482 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8483 /* allocate local 1 (pointer) dst_ptr */
8484 mono_mb_add_local (mb, &klass->this_arg);
8486 /* initialize src_ptr to point to the start of object data */
8487 mono_mb_emit_byte (mb, CEE_LDARG_0);
8488 mono_mb_emit_stloc (mb, 0);
8490 /* initialize dst_ptr */
8491 mono_mb_emit_byte (mb, CEE_LDARG_1);
8492 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8493 mono_mb_emit_stloc (mb, 1);
8495 emit_struct_conv (mb, klass, TRUE);
8498 mono_mb_emit_byte (mb, CEE_RET);
8500 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8501 res = mono_mb_create (mb, ptostr, 0, info);
8504 klass->marshal_info->ptr_to_str = res;
8509 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8510 * This is used to avoid infinite recursion since it is hard to determine where to
8511 * replace a method with its synchronized wrapper, and where not.
8512 * The runtime should execute METHOD instead of the wrapper.
8513 * The wrapper info for the wrapper is a WrapperInfo structure.
8516 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8518 MonoMethodBuilder *mb;
8520 MonoMethodSignature *sig;
8522 MonoGenericContext *ctx = NULL;
8523 MonoMethod *orig_method = NULL;
8524 MonoGenericContainer *container = NULL;
8526 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8527 orig_method = method;
8528 ctx = &((MonoMethodInflated*)method)->context;
8529 method = ((MonoMethodInflated*)method)->declaring;
8530 container = mono_method_get_generic_container (method);
8532 container = method->klass->generic_container;
8533 g_assert (container);
8536 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8538 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8539 mono_mb_emit_byte (mb, CEE_RET);
8541 sig = signature_dup (method->klass->image, mono_method_signature (method));
8543 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8544 info->d.synchronized_inner.method = method;
8545 res = mono_mb_create (mb, sig, 0, info);
8548 res = mono_class_inflate_generic_method (res, ctx);
8553 * generates IL code for the synchronized wrapper: the generated method
8554 * calls METHOD while locking 'this' or the parent type.
8557 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8559 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8560 MonoMethodSignature *sig;
8561 MonoExceptionClause *clause;
8562 MonoMethodBuilder *mb;
8565 int i, pos, this_local, ret_local = 0;
8566 MonoGenericContext *ctx = NULL;
8567 MonoMethod *orig_method = NULL;
8568 MonoGenericContainer *container = NULL;
8572 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8575 /* FIXME: Support generic methods too */
8576 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8577 orig_method = method;
8578 ctx = &((MonoMethodInflated*)method)->context;
8579 method = ((MonoMethodInflated*)method)->declaring;
8580 container = mono_method_get_generic_container (method);
8582 container = method->klass->generic_container;
8583 g_assert (container);
8590 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8591 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8595 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8596 if ((res = mono_marshal_find_in_cache (cache, method)))
8600 sig = signature_dup (method->klass->image, mono_method_signature (method));
8603 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8607 if (!MONO_TYPE_IS_VOID (sig->ret))
8608 ret_local = mono_mb_add_local (mb, sig->ret);
8611 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8612 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8614 /* This will throw the type load exception when the wrapper is compiled */
8615 mono_mb_emit_byte (mb, CEE_LDNULL);
8616 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8617 mono_mb_emit_byte (mb, CEE_POP);
8619 if (!MONO_TYPE_IS_VOID (sig->ret))
8620 mono_mb_emit_ldloc (mb, ret_local);
8621 mono_mb_emit_byte (mb, CEE_RET);
8624 res = mono_mb_create_and_cache (cache, method,
8625 mb, sig, sig->param_count + 16);
8633 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8635 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8636 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8639 mono_marshal_lock ();
8641 if (!enter_method) {
8642 MonoMethodDesc *desc;
8644 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8645 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8646 g_assert (enter_method);
8647 mono_method_desc_free (desc);
8649 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8650 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8651 g_assert (exit_method);
8652 mono_method_desc_free (desc);
8654 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8655 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8656 g_assert (gettypefromhandle_method);
8657 mono_method_desc_free (desc);
8660 mono_marshal_unlock ();
8663 /* Push this or the type object */
8664 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8665 /* We have special handling for this in the JIT */
8666 int index = mono_mb_add_data (mb, method->klass);
8667 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8668 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8669 mono_mb_emit_i4 (mb, index);
8671 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8674 mono_mb_emit_ldarg (mb, 0);
8675 mono_mb_emit_stloc (mb, this_local);
8677 /* Call Monitor::Enter() */
8678 mono_mb_emit_ldloc (mb, this_local);
8679 mono_mb_emit_managed_call (mb, enter_method, NULL);
8681 clause->try_offset = mono_mb_get_label (mb);
8683 /* Call the method */
8685 mono_mb_emit_ldarg (mb, 0);
8686 for (i = 0; i < sig->param_count; i++)
8687 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8690 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method (method, &container->context), NULL);
8692 mono_mb_emit_managed_call (mb, method, NULL);
8694 if (!MONO_TYPE_IS_VOID (sig->ret))
8695 mono_mb_emit_stloc (mb, ret_local);
8697 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8699 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8700 clause->handler_offset = mono_mb_get_label (mb);
8702 /* Call Monitor::Exit() */
8703 mono_mb_emit_ldloc (mb, this_local);
8704 mono_mb_emit_managed_call (mb, exit_method, NULL);
8705 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8707 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8709 mono_mb_patch_branch (mb, pos);
8710 if (!MONO_TYPE_IS_VOID (sig->ret))
8711 mono_mb_emit_ldloc (mb, ret_local);
8712 mono_mb_emit_byte (mb, CEE_RET);
8714 mono_mb_set_clauses (mb, 1, clause);
8719 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8720 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8722 res = mono_mb_create_and_cache (cache, method,
8723 mb, sig, sig->param_count + 16);
8732 * the returned method calls 'method' unboxing the this argument
8735 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8737 MonoMethodSignature *sig = mono_method_signature (method);
8739 MonoMethodBuilder *mb;
8743 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8744 if ((res = mono_marshal_find_in_cache (cache, method)))
8747 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8749 g_assert (sig->hasthis);
8752 mono_mb_emit_ldarg (mb, 0);
8753 mono_mb_emit_icon (mb, sizeof (MonoObject));
8754 mono_mb_emit_byte (mb, CEE_ADD);
8755 for (i = 0; i < sig->param_count; ++i)
8756 mono_mb_emit_ldarg (mb, i + 1);
8757 mono_mb_emit_managed_call (mb, method, NULL);
8758 mono_mb_emit_byte (mb, CEE_RET);
8761 res = mono_mb_create_and_cache (cache, method,
8762 mb, sig, sig->param_count + 16);
8765 /* code_for (res); */
8771 STELEMREF_OBJECT, /*no check at all*/
8772 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8773 STELEMREF_CLASS, /*only the klass->parents check*/
8774 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8775 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8776 STELEMREF_KIND_COUNT
8779 static const char *strelemref_wrapper_name[] = {
8780 "object", "sealed_class", "class", "interface", "complex"
8784 is_monomorphic_array (MonoClass *klass)
8786 MonoClass *element_class;
8787 if (klass->rank != 1)
8790 element_class = klass->element_class;
8791 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8795 get_virtual_stelemref_kind (MonoClass *element_class)
8797 if (element_class == mono_defaults.object_class)
8798 return STELEMREF_OBJECT;
8799 if (is_monomorphic_array (element_class))
8800 return STELEMREF_SEALED_CLASS;
8801 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8802 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8803 #ifdef COMPRESSED_INTERFACE_BITMAP
8804 return STELEMREF_COMPLEX;
8806 return STELEMREF_INTERFACE;
8808 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8809 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8810 return STELEMREF_COMPLEX;
8811 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8812 return STELEMREF_SEALED_CLASS;
8813 return STELEMREF_CLASS;
8819 load_array_element_address (MonoMethodBuilder *mb)
8821 mono_mb_emit_ldarg (mb, 0);
8822 mono_mb_emit_ldarg (mb, 1);
8823 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8827 load_array_class (MonoMethodBuilder *mb, int aklass)
8829 mono_mb_emit_ldarg (mb, 0);
8830 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8831 mono_mb_emit_byte (mb, CEE_LDIND_I);
8832 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8833 mono_mb_emit_byte (mb, CEE_LDIND_I);
8834 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8835 mono_mb_emit_byte (mb, CEE_LDIND_I);
8836 mono_mb_emit_stloc (mb, aklass);
8840 load_value_class (MonoMethodBuilder *mb, int vklass)
8842 mono_mb_emit_ldarg (mb, 2);
8843 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8844 mono_mb_emit_byte (mb, CEE_LDIND_I);
8845 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8846 mono_mb_emit_byte (mb, CEE_LDIND_I);
8847 mono_mb_emit_stloc (mb, vklass);
8853 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8855 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8856 printf ("slow vstore of %s\n", name);
8862 * The wrapper info for the wrapper is a WrapperInfo structure.
8865 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8866 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8867 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8868 * - Add a case for arrays of arrays.
8871 get_virtual_stelemref_wrapper (int kind)
8873 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8874 static MonoMethodSignature *signature;
8875 MonoMethodBuilder *mb;
8878 const char *param_names [16];
8880 int aklass, vklass, vtable, uiid;
8881 int array_slot_addr;
8884 if (cached_methods [kind])
8885 return cached_methods [kind];
8887 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8888 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8892 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8894 /* void this::stelemref (size_t idx, void* value) */
8895 sig->ret = &mono_defaults.void_class->byval_arg;
8896 sig->hasthis = TRUE;
8897 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8898 sig->params [1] = &mono_defaults.object_class->byval_arg;
8903 param_names [0] = "index";
8904 param_names [1] = "value";
8905 mono_mb_set_param_names (mb, param_names);
8907 /*For now simply call plain old stelemref*/
8909 case STELEMREF_OBJECT:
8910 /* ldelema (implicit bound check) */
8911 load_array_element_address (mb);
8913 mono_mb_emit_ldarg (mb, 2);
8914 mono_mb_emit_byte (mb, CEE_STIND_REF);
8915 mono_mb_emit_byte (mb, CEE_RET);
8918 case STELEMREF_COMPLEX:
8920 <ldelema (bound check)>
8923 if (!mono_object_isinst (value, aklass))
8927 *array_slot_addr = value;
8930 throw new ArrayTypeMismatchException ();
8933 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8934 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8938 /*Use this to debug/record stores that are going thru the slow path*/
8939 MonoMethodSignature *csig;
8940 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8941 csig->ret = &mono_defaults.void_class->byval_arg;
8942 csig->params [0] = &mono_defaults.object_class->byval_arg;
8943 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8944 csig->params [2] = &mono_defaults.object_class->byval_arg;
8945 mono_mb_emit_ldarg (mb, 0);
8946 mono_mb_emit_ldarg (mb, 1);
8947 mono_mb_emit_ldarg (mb, 2);
8948 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
8952 /* ldelema (implicit bound check) */
8953 load_array_element_address (mb);
8954 mono_mb_emit_stloc (mb, array_slot_addr);
8956 /* if (!value) goto do_store */
8957 mono_mb_emit_ldarg (mb, 2);
8958 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8960 /* aklass = array->vtable->klass->element_class */
8961 load_array_class (mb, aklass);
8963 /*if (mono_object_isinst (value, aklass)) */
8964 mono_mb_emit_ldarg (mb, 2);
8965 mono_mb_emit_ldloc (mb, aklass);
8966 mono_mb_emit_icall (mb, mono_object_isinst);
8967 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8970 mono_mb_patch_branch (mb, b1);
8971 mono_mb_emit_ldloc (mb, array_slot_addr);
8972 mono_mb_emit_ldarg (mb, 2);
8973 mono_mb_emit_byte (mb, CEE_STIND_REF);
8974 mono_mb_emit_byte (mb, CEE_RET);
8977 mono_mb_patch_branch (mb, b2);
8979 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8982 case STELEMREF_SEALED_CLASS:
8984 <ldelema (bound check)>
8988 aklass = array->vtable->klass->element_class;
8989 vklass = value->vtable->klass;
8991 if (vklass != aklass)
8995 *array_slot_addr = value;
8998 throw new ArrayTypeMismatchException ();
9000 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9001 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9002 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9005 /* ldelema (implicit bound check) */
9006 load_array_element_address (mb);
9007 mono_mb_emit_stloc (mb, array_slot_addr);
9009 /* if (!value) goto do_store */
9010 mono_mb_emit_ldarg (mb, 2);
9011 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9013 /* aklass = array->vtable->klass->element_class */
9014 load_array_class (mb, aklass);
9016 /* vklass = value->vtable->klass */
9017 load_value_class (mb, vklass);
9019 /*if (vklass != aklass) goto do_exception; */
9020 mono_mb_emit_ldloc (mb, aklass);
9021 mono_mb_emit_ldloc (mb, vklass);
9022 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9025 mono_mb_patch_branch (mb, b1);
9026 mono_mb_emit_ldloc (mb, array_slot_addr);
9027 mono_mb_emit_ldarg (mb, 2);
9028 mono_mb_emit_byte (mb, CEE_STIND_REF);
9029 mono_mb_emit_byte (mb, CEE_RET);
9032 mono_mb_patch_branch (mb, b2);
9033 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9036 case STELEMREF_CLASS:
9039 <ldelema (bound check)>
9043 aklass = array->vtable->klass->element_class;
9044 vklass = value->vtable->klass;
9046 if (vklass->idepth < aklass->idepth)
9049 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9053 *array_slot_addr = value;
9057 throw new ArrayTypeMismatchException ();
9059 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9060 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9061 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9063 /* ldelema (implicit bound check) */
9064 load_array_element_address (mb);
9065 mono_mb_emit_stloc (mb, array_slot_addr);
9067 /* if (!value) goto do_store */
9068 mono_mb_emit_ldarg (mb, 2);
9069 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9071 /* aklass = array->vtable->klass->element_class */
9072 load_array_class (mb, aklass);
9074 /* vklass = value->vtable->klass */
9075 load_value_class (mb, vklass);
9077 /*if (mono_object_isinst (value, aklass)) */
9078 mono_mb_emit_ldarg (mb, 2);
9079 mono_mb_emit_ldloc (mb, aklass);
9080 mono_mb_emit_icall (mb, mono_object_isinst);
9081 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9083 /* if (vklass->idepth < aklass->idepth) goto failue */
9084 mono_mb_emit_ldloc (mb, vklass);
9085 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9086 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9088 mono_mb_emit_ldloc (mb, aklass);
9089 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9090 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9092 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9094 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9095 mono_mb_emit_ldloc (mb, vklass);
9096 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9097 mono_mb_emit_byte (mb, CEE_LDIND_I);
9099 mono_mb_emit_ldloc (mb, aklass);
9100 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9101 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9102 mono_mb_emit_icon (mb, 1);
9103 mono_mb_emit_byte (mb, CEE_SUB);
9104 mono_mb_emit_icon (mb, sizeof (void*));
9105 mono_mb_emit_byte (mb, CEE_MUL);
9106 mono_mb_emit_byte (mb, CEE_ADD);
9107 mono_mb_emit_byte (mb, CEE_LDIND_I);
9109 mono_mb_emit_ldloc (mb, aklass);
9110 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9113 mono_mb_patch_branch (mb, b1);
9114 mono_mb_emit_ldloc (mb, array_slot_addr);
9115 mono_mb_emit_ldarg (mb, 2);
9116 mono_mb_emit_byte (mb, CEE_STIND_REF);
9117 mono_mb_emit_byte (mb, CEE_RET);
9120 mono_mb_patch_branch (mb, b2);
9121 mono_mb_patch_branch (mb, b3);
9123 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9126 case STELEMREF_INTERFACE:
9133 klass = array->obj.vtable->klass->element_class;
9135 uiid = klass->interface_id;
9136 if (uiid > vt->max_interface_id)
9138 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9141 mono_array_setref (array, index, value);
9144 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9146 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9147 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9148 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9149 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9151 /* ldelema (implicit bound check) */
9152 load_array_element_address (mb);
9153 mono_mb_emit_stloc (mb, array_slot_addr);
9155 /* if (!value) goto do_store */
9156 mono_mb_emit_ldarg (mb, 2);
9157 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9159 /* klass = array->vtable->klass->element_class */
9160 load_array_class (mb, aklass);
9162 /* vt = value->vtable */
9163 mono_mb_emit_ldarg (mb, 2);
9164 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9165 mono_mb_emit_byte (mb, CEE_LDIND_I);
9166 mono_mb_emit_stloc (mb, vtable);
9168 /* uiid = klass->interface_id; */
9169 mono_mb_emit_ldloc (mb, aklass);
9170 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9171 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9172 mono_mb_emit_stloc (mb, uiid);
9174 /*if (uiid > vt->max_interface_id)*/
9175 mono_mb_emit_ldloc (mb, uiid);
9176 mono_mb_emit_ldloc (mb, vtable);
9177 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9178 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9179 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9181 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9183 /*vt->interface_bitmap*/
9184 mono_mb_emit_ldloc (mb, vtable);
9185 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9186 mono_mb_emit_byte (mb, CEE_LDIND_I);
9189 mono_mb_emit_ldloc (mb, uiid);
9190 mono_mb_emit_icon (mb, 3);
9191 mono_mb_emit_byte (mb, CEE_SHR_UN);
9193 /*vt->interface_bitmap [(uiid) >> 3]*/
9194 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9195 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9197 /*(1 << ((uiid)&7)))*/
9198 mono_mb_emit_icon (mb, 1);
9199 mono_mb_emit_ldloc (mb, uiid);
9200 mono_mb_emit_icon (mb, 7);
9201 mono_mb_emit_byte (mb, CEE_AND);
9202 mono_mb_emit_byte (mb, CEE_SHL);
9204 /*bitwise and the whole thing*/
9205 mono_mb_emit_byte (mb, CEE_AND);
9206 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9209 mono_mb_patch_branch (mb, b1);
9210 mono_mb_emit_ldloc (mb, array_slot_addr);
9211 mono_mb_emit_ldarg (mb, 2);
9212 mono_mb_emit_byte (mb, CEE_STIND_REF);
9213 mono_mb_emit_byte (mb, CEE_RET);
9216 mono_mb_patch_branch (mb, b2);
9217 mono_mb_patch_branch (mb, b3);
9218 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9222 mono_mb_emit_ldarg (mb, 0);
9223 mono_mb_emit_ldarg (mb, 1);
9224 mono_mb_emit_ldarg (mb, 2);
9225 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9226 mono_mb_emit_byte (mb, CEE_RET);
9229 #endif /* DISABLE_JIT */
9230 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9231 info->d.virtual_stelemref.kind = kind;
9232 res = mono_mb_create (mb, signature, 4, info);
9233 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9235 mono_marshal_lock ();
9236 if (!cached_methods [kind]) {
9237 cached_methods [kind] = res;
9238 mono_marshal_unlock ();
9240 mono_marshal_unlock ();
9241 mono_free_method (res);
9245 return cached_methods [kind];
9249 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9253 g_assert (array_class->rank == 1);
9254 kind = get_virtual_stelemref_kind (array_class->element_class);
9256 return get_virtual_stelemref_wrapper (kind);
9260 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9265 *nwrappers = STELEMREF_KIND_COUNT;
9266 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9267 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9268 res [i] = get_virtual_stelemref_wrapper (i);
9273 * The wrapper info for the wrapper is a WrapperInfo structure.
9276 mono_marshal_get_stelemref (void)
9278 static MonoMethod* ret = NULL;
9279 MonoMethodSignature *sig;
9280 MonoMethodBuilder *mb;
9283 guint32 b1, b2, b3, b4;
9286 int array_slot_addr;
9291 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9294 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9296 /* void stelemref (void* array, int idx, void* value) */
9297 sig->ret = &mono_defaults.void_class->byval_arg;
9298 sig->params [0] = &mono_defaults.object_class->byval_arg;
9299 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9300 sig->params [2] = &mono_defaults.object_class->byval_arg;
9303 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9304 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9305 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9309 <ldelema (bound check)>
9313 aklass = array->vtable->klass->element_class;
9314 vklass = value->vtable->klass;
9316 if (vklass->idepth < aklass->idepth)
9319 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9323 *array_slot_addr = value;
9327 if (mono_object_isinst (value, aklass))
9330 throw new ArrayTypeMismatchException ();
9333 /* ldelema (implicit bound check) */
9334 mono_mb_emit_ldarg (mb, 0);
9335 mono_mb_emit_ldarg (mb, 1);
9336 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9337 mono_mb_emit_stloc (mb, array_slot_addr);
9339 /* if (!value) goto do_store */
9340 mono_mb_emit_ldarg (mb, 2);
9341 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9343 /* aklass = array->vtable->klass->element_class */
9344 mono_mb_emit_ldarg (mb, 0);
9345 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9346 mono_mb_emit_byte (mb, CEE_LDIND_I);
9347 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9348 mono_mb_emit_byte (mb, CEE_LDIND_I);
9349 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9350 mono_mb_emit_byte (mb, CEE_LDIND_I);
9351 mono_mb_emit_stloc (mb, aklass);
9353 /* vklass = value->vtable->klass */
9354 mono_mb_emit_ldarg (mb, 2);
9355 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9356 mono_mb_emit_byte (mb, CEE_LDIND_I);
9357 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9358 mono_mb_emit_byte (mb, CEE_LDIND_I);
9359 mono_mb_emit_stloc (mb, vklass);
9361 /* if (vklass->idepth < aklass->idepth) goto failue */
9362 mono_mb_emit_ldloc (mb, vklass);
9363 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9364 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9366 mono_mb_emit_ldloc (mb, aklass);
9367 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9368 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9370 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9372 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9373 mono_mb_emit_ldloc (mb, vklass);
9374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9375 mono_mb_emit_byte (mb, CEE_LDIND_I);
9377 mono_mb_emit_ldloc (mb, aklass);
9378 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9379 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9380 mono_mb_emit_icon (mb, 1);
9381 mono_mb_emit_byte (mb, CEE_SUB);
9382 mono_mb_emit_icon (mb, sizeof (void*));
9383 mono_mb_emit_byte (mb, CEE_MUL);
9384 mono_mb_emit_byte (mb, CEE_ADD);
9385 mono_mb_emit_byte (mb, CEE_LDIND_I);
9387 mono_mb_emit_ldloc (mb, aklass);
9389 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9391 copy_pos = mono_mb_get_label (mb);
9393 mono_mb_patch_branch (mb, b1);
9394 mono_mb_emit_ldloc (mb, array_slot_addr);
9395 mono_mb_emit_ldarg (mb, 2);
9396 mono_mb_emit_byte (mb, CEE_STIND_REF);
9398 mono_mb_emit_byte (mb, CEE_RET);
9401 mono_mb_patch_branch (mb, b2);
9402 mono_mb_patch_branch (mb, b3);
9404 mono_mb_emit_ldarg (mb, 2);
9405 mono_mb_emit_ldloc (mb, aklass);
9406 mono_mb_emit_icall (mb, mono_object_isinst);
9408 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9409 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9410 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9412 mono_mb_emit_byte (mb, CEE_RET);
9414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9415 ret = mono_mb_create (mb, sig, 4, info);
9422 * mono_marshal_get_gsharedvt_in_wrapper:
9424 * This wrapper handles calls from normal code to gsharedvt code.
9426 * The wrapper info for the wrapper is a WrapperInfo structure.
9429 mono_marshal_get_gsharedvt_in_wrapper (void)
9431 static MonoMethod* ret = NULL;
9432 MonoMethodSignature *sig;
9433 MonoMethodBuilder *mb;
9439 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9441 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9442 sig->ret = &mono_defaults.void_class->byval_arg;
9446 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9448 mono_mb_emit_byte (mb, CEE_RET);
9450 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9451 ret = mono_mb_create (mb, sig, 4, info);
9458 * mono_marshal_get_gsharedvt_out_wrapper:
9460 * This wrapper handles calls from gsharedvt code to normal code.
9462 * The wrapper info for the wrapper is a WrapperInfo structure.
9465 mono_marshal_get_gsharedvt_out_wrapper (void)
9467 static MonoMethod* ret = NULL;
9468 MonoMethodSignature *sig;
9469 MonoMethodBuilder *mb;
9475 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9477 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9478 sig->ret = &mono_defaults.void_class->byval_arg;
9482 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9484 mono_mb_emit_byte (mb, CEE_RET);
9486 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9487 ret = mono_mb_create (mb, sig, 4, info);
9499 /* LOCKING: vars accessed under the marshal lock */
9500 static ArrayElemAddr *elem_addr_cache = NULL;
9501 static int elem_addr_cache_size = 0;
9502 static int elem_addr_cache_next = 0;
9505 * mono_marshal_get_array_address:
9506 * @rank: rank of the array type
9507 * @elem_size: size in bytes of an element of an array.
9509 * Returns a MonoMethd that implements the code to get the address
9510 * of an element in a multi-dimenasional array of @rank dimensions.
9511 * The returned method takes an array as the first argument and then
9512 * @rank indexes for the @rank dimensions.
9515 mono_marshal_get_array_address (int rank, int elem_size)
9518 MonoMethodBuilder *mb;
9519 MonoMethodSignature *sig;
9521 int i, bounds, ind, realidx;
9522 int branch_pos, *branch_positions;
9526 mono_marshal_lock ();
9527 for (i = 0; i < elem_addr_cache_next; ++i) {
9528 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9529 ret = elem_addr_cache [i].method;
9533 mono_marshal_unlock ();
9537 branch_positions = g_new0 (int, rank);
9539 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9541 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9542 sig->ret = &mono_defaults.int_class->byval_arg;
9543 sig->params [0] = &mono_defaults.object_class->byval_arg;
9544 for (i = 0; i < rank; ++i) {
9545 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9548 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9551 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9552 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9553 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9555 /* bounds = array->bounds; */
9556 mono_mb_emit_ldarg (mb, 0);
9557 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9558 mono_mb_emit_byte (mb, CEE_LDIND_I);
9559 mono_mb_emit_stloc (mb, bounds);
9561 /* ind is the overall element index, realidx is the partial index in a single dimension */
9562 /* ind = idx0 - bounds [0].lower_bound */
9563 mono_mb_emit_ldarg (mb, 1);
9564 mono_mb_emit_ldloc (mb, bounds);
9565 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9566 mono_mb_emit_byte (mb, CEE_ADD);
9567 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9568 mono_mb_emit_byte (mb, CEE_SUB);
9569 mono_mb_emit_stloc (mb, ind);
9570 /* if (ind >= bounds [0].length) goto exeception; */
9571 mono_mb_emit_ldloc (mb, ind);
9572 mono_mb_emit_ldloc (mb, bounds);
9573 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9574 mono_mb_emit_byte (mb, CEE_ADD);
9575 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9576 /* note that we use unsigned comparison */
9577 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9579 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9580 * We could also decide to ignore the passed elem_size and get it
9581 * from the array object, to reduce the number of methods we generate:
9582 * the additional cost is 3 memory loads and a non-immediate mul.
9584 for (i = 1; i < rank; ++i) {
9585 /* realidx = idxi - bounds [i].lower_bound */
9586 mono_mb_emit_ldarg (mb, 1 + i);
9587 mono_mb_emit_ldloc (mb, bounds);
9588 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9589 mono_mb_emit_byte (mb, CEE_ADD);
9590 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9591 mono_mb_emit_byte (mb, CEE_SUB);
9592 mono_mb_emit_stloc (mb, realidx);
9593 /* if (realidx >= bounds [i].length) goto exeception; */
9594 mono_mb_emit_ldloc (mb, realidx);
9595 mono_mb_emit_ldloc (mb, bounds);
9596 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9597 mono_mb_emit_byte (mb, CEE_ADD);
9598 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9599 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9600 /* ind = ind * bounds [i].length + realidx */
9601 mono_mb_emit_ldloc (mb, ind);
9602 mono_mb_emit_ldloc (mb, bounds);
9603 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9604 mono_mb_emit_byte (mb, CEE_ADD);
9605 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9606 mono_mb_emit_byte (mb, CEE_MUL);
9607 mono_mb_emit_ldloc (mb, realidx);
9608 mono_mb_emit_byte (mb, CEE_ADD);
9609 mono_mb_emit_stloc (mb, ind);
9612 /* return array->vector + ind * element_size */
9613 mono_mb_emit_ldarg (mb, 0);
9614 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9615 mono_mb_emit_ldloc (mb, ind);
9616 mono_mb_emit_icon (mb, elem_size);
9617 mono_mb_emit_byte (mb, CEE_MUL);
9618 mono_mb_emit_byte (mb, CEE_ADD);
9619 mono_mb_emit_byte (mb, CEE_RET);
9621 /* patch the branches to get here and throw */
9622 for (i = 1; i < rank; ++i) {
9623 mono_mb_patch_branch (mb, branch_positions [i]);
9625 mono_mb_patch_branch (mb, branch_pos);
9626 /* throw exception */
9627 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9629 g_free (branch_positions);
9630 #endif /* DISABLE_JIT */
9632 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9633 info->d.element_addr.rank = rank;
9634 info->d.element_addr.elem_size = elem_size;
9635 ret = mono_mb_create (mb, sig, 4, info);
9638 /* cache the result */
9640 mono_marshal_lock ();
9641 for (i = 0; i < elem_addr_cache_next; ++i) {
9642 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9643 /* FIXME: free ret */
9644 ret = elem_addr_cache [i].method;
9650 if (elem_addr_cache_next >= elem_addr_cache_size) {
9651 int new_size = elem_addr_cache_size + 4;
9652 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9653 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9654 g_free (elem_addr_cache);
9655 elem_addr_cache = new_array;
9656 elem_addr_cache_size = new_size;
9658 elem_addr_cache [elem_addr_cache_next].rank = rank;
9659 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9660 elem_addr_cache [elem_addr_cache_next].method = ret;
9661 elem_addr_cache_next ++;
9663 mono_marshal_unlock ();
9668 * mono_marshal_get_array_accessor_wrapper:
9670 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9673 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9675 MonoMethodSignature *sig;
9676 MonoMethodBuilder *mb;
9680 MonoGenericContext *ctx = NULL;
9681 MonoMethod *orig_method = NULL;
9682 MonoGenericContainer *container = NULL;
9686 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9687 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9688 * FIXME: Use generic methods.
9695 g_assert_not_reached ();
9697 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9698 if ((res = mono_marshal_find_in_cache (cache, method)))
9702 sig = signature_dup (method->klass->image, mono_method_signature (method));
9705 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9708 /* Call the method */
9710 mono_mb_emit_ldarg (mb, 0);
9711 for (i = 0; i < sig->param_count; i++)
9712 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9715 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method (method, &container->context), NULL);
9717 mono_mb_emit_managed_call (mb, method, NULL);
9718 mono_mb_emit_byte (mb, CEE_RET);
9723 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9724 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9726 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9727 info->d.array_accessor.method = method;
9729 res = mono_mb_create_and_cache_full (cache, method,
9730 mb, sig, sig->param_count + 16,
9739 mono_marshal_alloc (gulong size)
9744 res = CoTaskMemAlloc (size);
9746 res = g_try_malloc ((gulong)size);
9748 mono_gc_out_of_memory ((gulong)size);
9754 mono_marshal_free (gpointer ptr)
9757 CoTaskMemFree (ptr);
9764 mono_marshal_free_array (gpointer *ptr, int size)
9771 for (i = 0; i < size; i++)
9777 mono_marshal_string_to_utf16 (MonoString *s)
9779 return s ? mono_string_chars (s) : NULL;
9783 mono_marshal_string_to_utf16_copy (MonoString *s)
9788 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9789 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9790 res [mono_string_length (s)] = 0;
9796 * mono_marshal_set_last_error:
9798 * This function is invoked to set the last error value from a P/Invoke call
9799 * which has SetLastError set.
9802 mono_marshal_set_last_error (void)
9805 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9807 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9812 mono_marshal_set_last_error_windows (int error)
9815 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9820 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9821 gpointer dest, gint32 length)
9826 MONO_ARCH_SAVE_REGS;
9828 MONO_CHECK_ARG_NULL (src);
9829 MONO_CHECK_ARG_NULL (dest);
9831 if (src->obj.vtable->klass->rank != 1)
9832 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9833 if (start_index < 0)
9834 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9836 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9837 if (start_index + length > mono_array_length (src))
9838 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9840 element_size = mono_array_element_size (src->obj.vtable->klass);
9842 /* no references should be involved */
9843 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9845 memcpy (dest, source_addr, length * element_size);
9849 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9850 MonoArray *dest, gint32 length)
9855 MONO_ARCH_SAVE_REGS;
9857 MONO_CHECK_ARG_NULL (src);
9858 MONO_CHECK_ARG_NULL (dest);
9860 if (dest->obj.vtable->klass->rank != 1)
9861 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9862 if (start_index < 0)
9863 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9865 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9866 if (start_index + length > mono_array_length (dest))
9867 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9869 element_size = mono_array_element_size (dest->obj.vtable->klass);
9871 /* no references should be involved */
9872 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9874 memcpy (dest_addr, src, length * element_size);
9878 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9880 MONO_ARCH_SAVE_REGS;
9885 return mono_string_new (mono_domain_get (), ptr);
9889 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9891 MONO_ARCH_SAVE_REGS;
9894 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9895 g_assert_not_reached ();
9898 return mono_string_new_len (mono_domain_get (), ptr, len);
9903 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9905 MonoDomain *domain = mono_domain_get ();
9909 MONO_ARCH_SAVE_REGS;
9917 return mono_string_new_utf16 (domain, ptr, len);
9921 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9923 MonoDomain *domain = mono_domain_get ();
9925 MONO_ARCH_SAVE_REGS;
9928 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9929 g_assert_not_reached ();
9932 return mono_string_new_utf16 (domain, ptr, len);
9937 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9939 MONO_ARCH_SAVE_REGS;
9941 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
9945 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9951 MONO_ARCH_SAVE_REGS;
9953 MONO_CHECK_ARG_NULL (rtype);
9956 klass = mono_class_from_mono_type (type);
9957 if (!mono_class_init (klass))
9958 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9960 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9962 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
9963 return sizeof (gpointer);
9964 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9968 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9969 exc = mono_get_exception_argument ("t", msg);
9971 mono_raise_exception (exc);
9975 return mono_class_native_size (klass, NULL);
9979 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9984 MONO_ARCH_SAVE_REGS;
9986 MONO_CHECK_ARG_NULL (obj);
9987 MONO_CHECK_ARG_NULL (dst);
9989 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9993 pa [2] = &delete_old;
9995 mono_runtime_invoke (method, NULL, pa, NULL);
9999 ptr_to_structure (gpointer src, MonoObject *dst)
10001 MonoMethod *method;
10004 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10009 mono_runtime_invoke (method, NULL, pa, NULL);
10013 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10017 MONO_ARCH_SAVE_REGS;
10019 MONO_CHECK_ARG_NULL (src);
10020 MONO_CHECK_ARG_NULL (dst);
10022 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10024 if (t->type == MONO_TYPE_VALUETYPE) {
10025 MonoException *exc;
10028 tmp = g_strdup_printf ("Destination is a boxed value type.");
10029 exc = mono_get_exception_argument ("dst", tmp);
10032 mono_raise_exception (exc);
10036 ptr_to_structure (src, dst);
10040 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10043 MonoDomain *domain = mono_domain_get ();
10046 MONO_ARCH_SAVE_REGS;
10050 MONO_CHECK_ARG_NULL (type);
10052 klass = mono_class_from_mono_type (type->type);
10053 if (!mono_class_init (klass))
10054 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10056 res = mono_object_new (domain, klass);
10058 ptr_to_structure (src, res);
10064 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10066 MonoMarshalType *info;
10069 int match_index = -1;
10071 MONO_ARCH_SAVE_REGS;
10073 MONO_CHECK_ARG_NULL (type);
10074 MONO_CHECK_ARG_NULL (field_name);
10076 fname = mono_string_to_utf8 (field_name);
10077 klass = mono_class_from_mono_type (type->type);
10078 if (!mono_class_init (klass))
10079 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10081 while (klass && match_index == -1) {
10082 MonoClassField* field;
10084 gpointer iter = NULL;
10085 while ((field = mono_class_get_fields (klass, &iter))) {
10086 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10088 if (!strcmp (fname, mono_field_get_name (field))) {
10095 if (match_index == -1)
10096 klass = klass->parent;
10101 if(match_index == -1) {
10102 MonoException* exc;
10105 /* Get back original class instance */
10106 klass = mono_class_from_mono_type (type->type);
10108 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10109 exc = mono_get_exception_argument ("fieldName", tmp);
10112 mono_raise_exception ((MonoException*)exc);
10115 info = mono_marshal_load_type_info (klass);
10116 return info->fields [match_index].offset;
10120 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10125 tres = mono_string_to_utf8 (string);
10129 len = strlen (tres) + 1;
10130 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10131 memcpy (ret, tres, len);
10136 return mono_string_to_utf8 (string);
10141 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10143 MONO_ARCH_SAVE_REGS;
10145 if (string == NULL)
10148 #ifdef TARGET_WIN32
10149 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10150 ((mono_string_length (string) + 1) * 2);
10152 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10154 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10155 res [mono_string_length (string)] = 0;
10161 mono_struct_delete_old (MonoClass *klass, char *ptr)
10163 MonoMarshalType *info;
10166 info = mono_marshal_load_type_info (klass);
10168 for (i = 0; i < info->num_fields; i++) {
10169 MonoMarshalNative ntype;
10170 MonoMarshalConv conv;
10171 MonoType *ftype = info->fields [i].field->type;
10174 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10177 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10178 klass->unicode, &conv);
10180 cpos = ptr + info->fields [i].offset;
10183 case MONO_MARSHAL_CONV_NONE:
10184 if (MONO_TYPE_ISSTRUCT (ftype)) {
10185 mono_struct_delete_old (ftype->data.klass, cpos);
10189 case MONO_MARSHAL_CONV_STR_LPWSTR:
10190 /* We assume this field points inside a MonoString */
10192 case MONO_MARSHAL_CONV_STR_LPTSTR:
10193 #ifdef TARGET_WIN32
10194 /* We assume this field points inside a MonoString
10198 case MONO_MARSHAL_CONV_STR_LPSTR:
10199 case MONO_MARSHAL_CONV_STR_BSTR:
10200 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10201 case MONO_MARSHAL_CONV_STR_TBSTR:
10202 mono_marshal_free (*(gpointer *)cpos);
10212 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10216 MONO_ARCH_SAVE_REGS;
10218 MONO_CHECK_ARG_NULL (src);
10219 MONO_CHECK_ARG_NULL (type);
10221 klass = mono_class_from_mono_type (type->type);
10222 if (!mono_class_init (klass))
10223 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10225 mono_struct_delete_old (klass, (char *)src);
10229 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10233 MONO_ARCH_SAVE_REGS;
10235 if ((gulong)size == 0)
10236 /* This returns a valid pointer for size 0 on MS.NET */
10240 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10242 res = g_try_malloc ((gulong)size);
10245 mono_gc_out_of_memory ((gulong)size);
10251 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10256 mono_gc_out_of_memory ((gulong)size);
10261 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10263 res = g_try_realloc (ptr, (gulong)size);
10266 mono_gc_out_of_memory ((gulong)size);
10272 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10274 MONO_ARCH_SAVE_REGS;
10284 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10286 MONO_ARCH_SAVE_REGS;
10289 return CoTaskMemAlloc (size);
10291 return g_try_malloc ((gulong)size);
10296 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10298 MONO_ARCH_SAVE_REGS;
10301 CoTaskMemFree (ptr);
10308 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10310 MONO_ARCH_SAVE_REGS;
10313 return CoTaskMemRealloc (ptr, size);
10315 return g_try_realloc (ptr, (gulong)size);
10320 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10322 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10326 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10328 MonoClass *klass = mono_type_get_class (type->type);
10329 if (!mono_class_init (klass))
10330 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10332 return mono_ftnptr_to_delegate (klass, ftn);
10336 * mono_marshal_is_loading_type_info:
10338 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10342 mono_marshal_is_loading_type_info (MonoClass *klass)
10344 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10346 return g_slist_find (loads_list, klass) != NULL;
10350 * mono_marshal_load_type_info:
10352 * Initialize klass->marshal_info using information from metadata. This function can
10353 * recursively call itself, and the caller is responsible to avoid that by calling
10354 * mono_marshal_is_loading_type_info () beforehand.
10356 * LOCKING: Acquires the loader lock.
10359 mono_marshal_load_type_info (MonoClass* klass)
10362 guint32 native_size = 0, min_align = 1, packing;
10363 MonoMarshalType *info;
10364 MonoClassField* field;
10367 GSList *loads_list;
10369 g_assert (klass != NULL);
10371 if (klass->marshal_info)
10372 return klass->marshal_info;
10374 if (!klass->inited)
10375 mono_class_init (klass);
10377 if (klass->marshal_info)
10378 return klass->marshal_info;
10381 * This function can recursively call itself, so we keep the list of classes which are
10382 * under initialization in a TLS list.
10384 g_assert (!mono_marshal_is_loading_type_info (klass));
10385 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10386 loads_list = g_slist_prepend (loads_list, klass);
10387 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10390 while ((field = mono_class_get_fields (klass, &iter))) {
10391 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10393 if (mono_field_is_deleted (field))
10398 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10400 /* The mempool is protected by the loader lock */
10401 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10402 info->num_fields = count;
10404 /* Try to find a size for this type in metadata */
10405 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10407 if (klass->parent) {
10408 int parent_size = mono_class_native_size (klass->parent, NULL);
10410 /* Add parent size to real size */
10411 native_size += parent_size;
10412 info->native_size = parent_size;
10415 packing = klass->packing_size ? klass->packing_size : 8;
10418 while ((field = mono_class_get_fields (klass, &iter))) {
10422 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10425 if (mono_field_is_deleted (field))
10427 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10428 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10429 NULL, NULL, &info->fields [j].mspec);
10431 info->fields [j].field = field;
10433 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10434 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10435 /* This field is a hack inserted by MCS to empty structures */
10440 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10441 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10442 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10443 &align, TRUE, klass->unicode);
10444 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10445 min_align = MAX (align, min_align);
10446 info->fields [j].offset = info->native_size;
10447 info->fields [j].offset += align - 1;
10448 info->fields [j].offset &= ~(align - 1);
10449 info->native_size = info->fields [j].offset + size;
10451 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10452 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10453 &align, TRUE, klass->unicode);
10454 min_align = MAX (align, min_align);
10455 info->fields [j].offset = field->offset - sizeof (MonoObject);
10456 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10462 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10463 info->native_size = MAX (native_size, info->native_size);
10465 * If the provided Size is equal or larger than the calculated size, and there
10466 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10468 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10469 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10472 min_align = MIN (min_align, packing);
10476 if (info->native_size & (min_align - 1)) {
10477 info->native_size += min_align - 1;
10478 info->native_size &= ~(min_align - 1);
10481 info->min_align = min_align;
10483 /* Update the class's blittable info, if the layouts don't match */
10484 if (info->native_size != mono_class_value_size (klass, NULL))
10485 klass->blittable = FALSE;
10487 /* If this is an array type, ensure that we have element info */
10488 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10489 mono_marshal_load_type_info (klass->element_class);
10492 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10493 loads_list = g_slist_remove (loads_list, klass);
10494 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10496 mono_marshal_lock ();
10497 if (!klass->marshal_info) {
10498 /*We do double-checking locking on marshal_info */
10499 mono_memory_barrier ();
10500 klass->marshal_info = info;
10502 mono_marshal_unlock ();
10504 return klass->marshal_info;
10508 * mono_class_native_size:
10511 * Returns: the native size of an object instance (when marshaled
10512 * to unmanaged code)
10515 mono_class_native_size (MonoClass *klass, guint32 *align)
10517 if (!klass->marshal_info) {
10518 if (mono_marshal_is_loading_type_info (klass)) {
10523 mono_marshal_load_type_info (klass);
10528 *align = klass->marshal_info->min_align;
10530 return klass->marshal_info->native_size;
10534 * mono_type_native_stack_size:
10535 * @t: the type to return the size it uses on the stack
10537 * Returns: the number of bytes required to hold an instance of this
10538 * type on the native stack
10541 mono_type_native_stack_size (MonoType *t, guint32 *align)
10545 g_assert (t != NULL);
10551 *align = sizeof (gpointer);
10552 return sizeof (gpointer);
10556 case MONO_TYPE_BOOLEAN:
10557 case MONO_TYPE_CHAR:
10568 case MONO_TYPE_STRING:
10569 case MONO_TYPE_OBJECT:
10570 case MONO_TYPE_CLASS:
10571 case MONO_TYPE_SZARRAY:
10572 case MONO_TYPE_PTR:
10573 case MONO_TYPE_FNPTR:
10574 case MONO_TYPE_ARRAY:
10575 *align = sizeof (gpointer);
10576 return sizeof (gpointer);
10581 *align = MONO_ABI_ALIGNOF (double);
10585 *align = MONO_ABI_ALIGNOF (gint64);
10587 case MONO_TYPE_GENERICINST:
10588 if (!mono_type_generic_inst_is_valuetype (t)) {
10589 *align = sizeof (gpointer);
10590 return sizeof (gpointer);
10593 case MONO_TYPE_TYPEDBYREF:
10594 case MONO_TYPE_VALUETYPE: {
10596 MonoClass *klass = mono_class_from_mono_type (t);
10598 if (klass->enumtype)
10599 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10601 size = mono_class_native_size (klass, align);
10602 *align = *align + 3;
10612 g_error ("type 0x%02x unknown", t->type);
10618 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10619 gboolean as_field, gboolean unicode)
10621 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10624 switch (native_type) {
10625 case MONO_NATIVE_BOOLEAN:
10628 case MONO_NATIVE_I1:
10629 case MONO_NATIVE_U1:
10632 case MONO_NATIVE_I2:
10633 case MONO_NATIVE_U2:
10634 case MONO_NATIVE_VARIANTBOOL:
10637 case MONO_NATIVE_I4:
10638 case MONO_NATIVE_U4:
10639 case MONO_NATIVE_ERROR:
10642 case MONO_NATIVE_I8:
10643 case MONO_NATIVE_U8:
10644 *align = MONO_ABI_ALIGNOF (gint64);
10646 case MONO_NATIVE_R4:
10649 case MONO_NATIVE_R8:
10650 *align = MONO_ABI_ALIGNOF (double);
10652 case MONO_NATIVE_INT:
10653 case MONO_NATIVE_UINT:
10654 case MONO_NATIVE_LPSTR:
10655 case MONO_NATIVE_LPWSTR:
10656 case MONO_NATIVE_LPTSTR:
10657 case MONO_NATIVE_BSTR:
10658 case MONO_NATIVE_ANSIBSTR:
10659 case MONO_NATIVE_TBSTR:
10660 case MONO_NATIVE_LPARRAY:
10661 case MONO_NATIVE_SAFEARRAY:
10662 case MONO_NATIVE_IUNKNOWN:
10663 case MONO_NATIVE_IDISPATCH:
10664 case MONO_NATIVE_INTERFACE:
10665 case MONO_NATIVE_ASANY:
10666 case MONO_NATIVE_FUNC:
10667 case MONO_NATIVE_LPSTRUCT:
10668 *align = MONO_ABI_ALIGNOF (gpointer);
10669 return sizeof (gpointer);
10670 case MONO_NATIVE_STRUCT:
10671 klass = mono_class_from_mono_type (type);
10672 if (klass == mono_defaults.object_class &&
10673 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10677 return mono_class_native_size (klass, align);
10678 case MONO_NATIVE_BYVALTSTR: {
10679 int esize = unicode ? 2: 1;
10682 return mspec->data.array_data.num_elem * esize;
10684 case MONO_NATIVE_BYVALARRAY: {
10685 // FIXME: Have to consider ArraySubType
10687 klass = mono_class_from_mono_type (type);
10688 if (klass->element_class == mono_defaults.char_class) {
10689 esize = unicode ? 2 : 1;
10692 esize = mono_class_native_size (klass->element_class, align);
10695 return mspec->data.array_data.num_elem * esize;
10697 case MONO_NATIVE_CUSTOM:
10698 *align = sizeof (gpointer);
10699 return sizeof (gpointer);
10701 case MONO_NATIVE_CURRENCY:
10702 case MONO_NATIVE_VBBYREFSTR:
10704 g_error ("native type %02x not implemented", native_type);
10707 g_assert_not_reached ();
10712 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10720 t = &o->vtable->klass->byval_arg;
10724 case MONO_TYPE_PTR:
10727 case MONO_TYPE_BOOLEAN:
10730 case MONO_TYPE_CHAR:
10735 return mono_object_unbox (o);
10737 case MONO_TYPE_STRING:
10738 switch (string_encoding) {
10739 case MONO_NATIVE_LPWSTR:
10740 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10742 case MONO_NATIVE_LPSTR:
10743 return mono_string_to_lpstr ((MonoString*)o);
10746 g_warning ("marshaling conversion %d not implemented", string_encoding);
10747 g_assert_not_reached ();
10750 case MONO_TYPE_CLASS:
10751 case MONO_TYPE_VALUETYPE: {
10752 MonoMethod *method;
10755 MonoBoolean delete_old = FALSE;
10757 klass = t->data.klass;
10759 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10762 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10763 klass->blittable || klass->enumtype))
10764 return mono_object_unbox (o);
10766 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10768 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10769 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10773 pa [2] = &delete_old;
10775 mono_runtime_invoke (method, NULL, pa, NULL);
10782 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10788 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10796 t = &o->vtable->klass->byval_arg;
10798 case MONO_TYPE_STRING:
10799 switch (string_encoding) {
10800 case MONO_NATIVE_LPWSTR:
10801 case MONO_NATIVE_LPSTR:
10802 mono_marshal_free (ptr);
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 klass = t->data.klass;
10813 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10814 klass->blittable || klass->enumtype))
10817 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10818 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10824 mono_runtime_invoke (method, NULL, pa, NULL);
10827 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10828 mono_struct_delete_old (klass, ptr);
10831 mono_marshal_free (ptr);
10840 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10842 MonoMethodSignature *sig, *csig;
10843 MonoMethodBuilder *mb;
10848 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10849 mb->method->slot = -1;
10851 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10852 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10854 sig = mono_method_signature (method);
10855 csig = signature_dup (method->klass->image, sig);
10856 csig->generic_param_count = 0;
10858 #ifndef DISABLE_JIT
10859 mono_mb_emit_ldarg (mb, 0);
10860 for (i = 0; i < csig->param_count; i++)
10861 mono_mb_emit_ldarg (mb, i + 1);
10862 mono_mb_emit_managed_call (mb, method, NULL);
10863 mono_mb_emit_byte (mb, CEE_RET);
10865 /* We can corlib internal methods */
10866 mb->skip_visibility = TRUE;
10868 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10869 info->d.generic_array_helper.method = method;
10870 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10878 * The mono_win32_compat_* functions are implementations of inline
10879 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10880 * although not exported by kernel32.
10882 * We map the appropiate kernel32 entries to these functions using
10883 * dllmaps declared in the global etc/mono/config.
10887 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10889 if (!dest || !source)
10892 memcpy (dest, source, length);
10896 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10898 memset (dest, fill, length);
10902 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10904 if (!dest || !source)
10907 memmove (dest, source, length);
10911 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10913 memset (dest, 0, length);
10917 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10922 for (i = 0; i < len; ++i)
10926 g_assert (i < len);
10929 while (byte && !(byte & 1))
10931 g_assert (byte == 1);
10934 *bitmask = buf [i];
10938 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10940 MonoMethodBuilder *mb;
10941 MonoMethodSignature *sig, *csig;
10942 MonoExceptionClause *clause;
10947 int i, param_count, sig_size, pos_leave;
10951 klass = method->klass;
10952 image = method->klass->image;
10953 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10955 if ((res = mono_marshal_find_in_cache (cache, method)))
10958 sig = mono_method_signature (method);
10959 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10961 /* add "this" and exception param */
10962 param_count = sig->param_count + sig->hasthis + 1;
10964 /* dup & extend signature */
10965 csig = mono_metadata_signature_alloc (image, param_count);
10966 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10967 memcpy (csig, sig, sig_size);
10968 csig->param_count = param_count;
10971 csig->call_convention = MONO_CALL_DEFAULT;
10973 if (sig->hasthis) {
10975 csig->params [0] = &klass->byval_arg;
10976 /* move params up by one */
10977 for (i = 0; i < sig->param_count; i++)
10978 csig->params [i + 1] = sig->params [i];
10981 /* setup exception param as byref+[out] */
10982 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10983 &mono_defaults.exception_class->byval_arg);
10984 csig->params [param_count - 1]->byref = 1;
10985 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10987 /* convert struct return to object */
10988 if (MONO_TYPE_ISSTRUCT (sig->ret))
10989 csig->ret = &mono_defaults.object_class->byval_arg;
10991 #ifndef DISABLE_JIT
10992 /* local 0 (temp for exception object) */
10993 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10995 /* local 1 (temp for result) */
10996 if (!MONO_TYPE_IS_VOID (sig->ret))
10997 mono_mb_add_local (mb, sig->ret);
10999 /* clear exception arg */
11000 mono_mb_emit_ldarg (mb, param_count - 1);
11001 mono_mb_emit_byte (mb, CEE_LDNULL);
11002 mono_mb_emit_byte (mb, CEE_STIND_REF);
11005 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11006 clause->try_offset = mono_mb_get_label (mb);
11008 /* push method's args */
11009 for (i = 0; i < param_count - 1; i++) {
11013 mono_mb_emit_ldarg (mb, i);
11015 /* get the byval type of the param */
11016 klass = mono_class_from_mono_type (csig->params [i]);
11017 type = &klass->byval_arg;
11019 /* unbox struct args */
11020 if (MONO_TYPE_ISSTRUCT (type)) {
11021 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11023 /* byref args & and the "this" arg must remain a ptr.
11024 Otherwise make a copy of the value type */
11025 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11026 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11028 csig->params [i] = &mono_defaults.object_class->byval_arg;
11033 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11034 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11036 mono_mb_emit_op (mb, CEE_CALL, method);
11038 /* save result at local 1 */
11039 if (!MONO_TYPE_IS_VOID (sig->ret))
11040 mono_mb_emit_stloc (mb, 1);
11042 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11045 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11046 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11047 clause->data.catch_class = mono_defaults.object_class;
11049 clause->handler_offset = mono_mb_get_label (mb);
11051 /* store exception at local 0 */
11052 mono_mb_emit_stloc (mb, 0);
11053 mono_mb_emit_ldarg (mb, param_count - 1);
11054 mono_mb_emit_ldloc (mb, 0);
11055 mono_mb_emit_byte (mb, CEE_STIND_REF);
11056 mono_mb_emit_branch (mb, CEE_LEAVE);
11058 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11060 mono_mb_set_clauses (mb, 1, clause);
11062 mono_mb_patch_branch (mb, pos_leave);
11065 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11066 mono_mb_emit_ldloc (mb, 1);
11068 /* box the return value */
11069 if (MONO_TYPE_ISSTRUCT (sig->ret))
11070 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11073 mono_mb_emit_byte (mb, CEE_RET);
11076 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11083 * mono_marshal_free_dynamic_wrappers:
11085 * Free wrappers of the dynamic method METHOD.
11088 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11090 MonoImage *image = method->klass->image;
11092 g_assert (method_is_dynamic (method));
11094 /* This could be called during shutdown */
11095 if (marshal_mutex_initialized)
11096 mono_marshal_lock ();
11098 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11099 * they could be shared with other methods ?
11101 if (image->runtime_invoke_direct_cache)
11102 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11103 if (image->delegate_abstract_invoke_cache)
11104 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
11105 // FIXME: Need to clear the caches in other images as well
11106 if (image->delegate_bound_static_invoke_cache)
11107 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11109 if (marshal_mutex_initialized)
11110 mono_marshal_unlock ();
11114 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11116 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11117 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11119 return mono_metadata_signature_equal (pair->sig, sig);
11123 * mono_marshal_free_inflated_wrappers:
11125 * Free wrappers of the inflated method METHOD.
11128 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11130 MonoMethodSignature *sig = method->signature;
11132 g_assert (method->is_inflated);
11134 /* Ignore calls occuring late during cleanup. */
11135 if (!marshal_mutex_initialized)
11138 mono_marshal_lock ();
11140 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11141 * they could be shared with other methods ?
11145 * indexed by MonoMethodSignature
11147 /* FIXME: This could remove unrelated wrappers as well */
11148 if (sig && method->klass->image->delegate_begin_invoke_cache)
11149 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11150 if (sig && method->klass->image->delegate_end_invoke_cache)
11151 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11152 if (sig && method->klass->image->delegate_invoke_cache)
11153 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11154 if (sig && method->klass->image->runtime_invoke_cache)
11155 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11156 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11157 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11160 * indexed by SignatureMethodPair
11162 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11163 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11164 signature_method_pair_matches_signature, (gpointer)sig);
11167 * indexed by MonoMethod pointers
11169 if (method->klass->image->runtime_invoke_direct_cache)
11170 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11171 if (method->klass->image->managed_wrapper_cache)
11172 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11173 if (method->klass->image->native_wrapper_cache)
11174 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11175 if (method->klass->image->remoting_invoke_cache)
11176 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11177 if (method->klass->image->synchronized_cache)
11178 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11179 if (method->klass->image->unbox_wrapper_cache)
11180 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11181 if (method->klass->image->cominterop_invoke_cache)
11182 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11183 if (method->klass->image->cominterop_wrapper_cache)
11184 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11185 if (method->klass->image->thunk_invoke_cache)
11186 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11187 if (method->klass->image->native_func_wrapper_aot_cache)
11188 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11190 mono_marshal_unlock ();