2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threadpool.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internal.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
48 /* #define DEBUG_RUNTIME_CODE */
50 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
54 #include "mono/cil/opcode.def"
60 * This mutex protects the various marshalling related caches in MonoImage
61 * and a few other data structures static to this file.
63 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
64 * runtime locking latice. Which means it can take simple locks suck as the image lock.
66 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
67 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
68 static mono_mutex_t marshal_mutex;
69 static gboolean marshal_mutex_initialized;
71 static MonoNativeTlsKey last_error_tls_id;
73 static MonoNativeTlsKey load_type_info_tls_id;
75 static gboolean use_aot_wrappers;
78 delegate_hash_table_add (MonoDelegate *d);
81 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
84 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
87 mono_struct_delete_old (MonoClass *klass, char *ptr);
90 mono_marshal_string_to_utf16 (MonoString *s);
93 mono_marshal_string_to_utf16_copy (MonoString *s);
96 mono_string_to_lpstr (MonoString *string_obj);
98 static MonoStringBuilder *
99 mono_string_utf8_to_builder2 (char *text);
101 static MonoStringBuilder *
102 mono_string_utf16_to_builder2 (gunichar2 *text);
105 mono_string_new_len_wrapper (const char *text, guint length);
108 mono_string_from_byvalstr (const char *data, int len);
111 mono_string_from_byvalwstr (gunichar2 *data, int len);
114 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
117 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_set_last_error_windows (int error);
134 static void init_safe_handle (void);
136 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
137 static MonoMethod *sh_dangerous_add_ref;
138 static MonoMethod *sh_dangerous_release;
144 sh_dangerous_add_ref = mono_class_get_method_from_name (
145 mono_defaults.safehandle_class, "DangerousAddRef", 1);
146 sh_dangerous_release = mono_class_get_method_from_name (
147 mono_defaults.safehandle_class, "DangerousRelease", 0);
151 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
153 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
155 mono_register_jit_icall (func, name, sig, save);
158 static MonoMethodSignature*
159 signature_dup (MonoImage *image, MonoMethodSignature *sig)
161 MonoMethodSignature *res;
164 res = mono_metadata_signature_alloc (image, sig->param_count);
165 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
166 memcpy (res, sig, sigsize);
172 mono_signature_no_pinvoke (MonoMethod *method)
174 MonoMethodSignature *sig = mono_method_signature (method);
176 sig = signature_dup (method->klass->image, sig);
177 sig->pinvoke = FALSE;
184 mono_marshal_init_tls (void)
186 mono_native_tls_alloc (&last_error_tls_id, NULL);
187 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
191 mono_marshal_init (void)
193 static gboolean module_initialized = FALSE;
195 if (!module_initialized) {
196 module_initialized = TRUE;
197 mono_mutex_init_recursive (&marshal_mutex);
198 marshal_mutex_initialized = TRUE;
200 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
201 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
202 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
203 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
204 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
205 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
206 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
207 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
208 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
209 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
210 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
211 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
212 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
214 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
215 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
216 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
217 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
218 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
219 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
220 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
221 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
222 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
223 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
224 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
225 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
226 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
227 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
228 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
229 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
230 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
231 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
232 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
233 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
234 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
235 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
236 register_icall (g_free, "g_free", "void ptr", FALSE);
237 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
238 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
239 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
240 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
241 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
242 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
243 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
244 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
245 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
247 mono_cominterop_init ();
248 mono_remoting_init ();
253 mono_marshal_cleanup (void)
255 mono_cominterop_cleanup ();
257 mono_native_tls_free (load_type_info_tls_id);
258 mono_native_tls_free (last_error_tls_id);
259 mono_mutex_destroy (&marshal_mutex);
260 marshal_mutex_initialized = FALSE;
264 mono_marshal_lock_internal (void)
266 mono_marshal_lock ();
270 mono_marshal_unlock_internal (void)
272 mono_marshal_unlock ();
276 mono_delegate_to_ftnptr (MonoDelegate *delegate)
278 MonoMethod *method, *wrapper;
280 uint32_t target_handle = 0;
285 if (delegate->delegate_trampoline)
286 return delegate->delegate_trampoline;
288 klass = ((MonoObject *)delegate)->vtable->klass;
289 g_assert (klass->delegate);
291 method = delegate->method;
293 if (mono_method_signature (method)->pinvoke) {
294 const char *exc_class, *exc_arg;
297 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
299 g_assert (exc_class);
300 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
305 if (delegate->target) {
306 /* Produce a location which can be embedded in JITted code */
307 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
310 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
312 delegate->delegate_trampoline = mono_compile_method (wrapper);
314 // Add the delegate to the delegate hash table
315 delegate_hash_table_add (delegate);
317 /* when the object is collected, collect the dynamic method, too */
318 mono_object_register_finalizer ((MonoObject*)delegate);
320 return delegate->delegate_trampoline;
324 * this hash table maps from a delegate trampoline object to a weak reference
325 * of the delegate. As an optimizations with a non-moving GC we store the
326 * object pointer itself, otherwise we use a GC handle.
328 static GHashTable *delegate_hash_table;
331 delegate_hash_table_new (void) {
332 return g_hash_table_new (NULL, NULL);
336 delegate_hash_table_remove (MonoDelegate *d)
338 guint32 gchandle = 0;
340 mono_marshal_lock ();
341 if (delegate_hash_table == NULL)
342 delegate_hash_table = delegate_hash_table_new ();
343 if (mono_gc_is_moving ())
344 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
345 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
346 mono_marshal_unlock ();
347 if (mono_gc_is_moving ())
348 mono_gchandle_free (gchandle);
352 delegate_hash_table_add (MonoDelegate *d)
355 guint32 old_gchandle;
357 mono_marshal_lock ();
358 if (delegate_hash_table == NULL)
359 delegate_hash_table = delegate_hash_table_new ();
360 if (mono_gc_is_moving ()) {
361 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
362 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
363 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
365 mono_gchandle_free (old_gchandle);
367 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
369 mono_marshal_unlock ();
373 * mono_marshal_use_aot_wrappers:
375 * Instructs this module to use AOT compatible wrappers.
378 mono_marshal_use_aot_wrappers (gboolean use)
380 use_aot_wrappers = use;
384 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
386 static MonoClass *UnmanagedFunctionPointerAttribute;
387 MonoCustomAttrInfo *cinfo;
388 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
390 if (!UnmanagedFunctionPointerAttribute)
391 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
393 /* The attribute is only available in Net 2.0 */
394 if (UnmanagedFunctionPointerAttribute) {
396 * The pinvoke attributes are stored in a real custom attribute so we have to
399 cinfo = mono_custom_attrs_from_class (klass);
400 if (cinfo && !mono_runtime_get_no_exec ()) {
402 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
404 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
406 if (!mono_error_ok (&error)) {
407 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
408 mono_error_cleanup (&error);
412 mono_custom_attrs_free (cinfo);
418 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
426 mono_marshal_lock ();
427 if (delegate_hash_table == NULL)
428 delegate_hash_table = delegate_hash_table_new ();
430 if (mono_gc_is_moving ()) {
431 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
432 mono_marshal_unlock ();
434 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
438 d = g_hash_table_lookup (delegate_hash_table, ftn);
439 mono_marshal_unlock ();
442 /* This is a native function, so construct a delegate for it */
443 MonoMethodSignature *sig;
445 MonoMarshalSpec **mspecs;
446 MonoMethod *invoke = mono_get_delegate_invoke (klass);
447 MonoMethodPInvoke piinfo;
451 if (use_aot_wrappers) {
452 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
453 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
455 memset (&piinfo, 0, sizeof (piinfo));
456 parse_unmanaged_function_pointer_attr (klass, &piinfo);
458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
459 mono_method_get_marshal_info (invoke, mspecs);
460 /* Freed below so don't alloc from mempool */
461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
464 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
467 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
469 mono_metadata_free_marshal_spec (mspecs [i]);
474 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
475 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
478 if (d->object.vtable->domain != mono_domain_get ())
479 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
485 mono_delegate_free_ftnptr (MonoDelegate *delegate)
490 delegate_hash_table_remove (delegate);
492 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
494 if (!delegate->target) {
495 /* The wrapper method is shared between delegates -> no need to free it */
504 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
507 method = mono_jit_info_get_method (ji);
508 method_data = ((MonoMethodWrapper*)method)->method_data;
510 /*the target gchandle is the first entry after size and the wrapper itself.*/
511 gchandle = GPOINTER_TO_UINT (method_data [2]);
514 mono_gchandle_free (gchandle);
516 mono_runtime_free_method (mono_object_domain (delegate), method);
521 mono_string_from_byvalstr (const char *data, int max_len)
523 MonoDomain *domain = mono_domain_get ();
529 while (len < max_len - 1 && data [len])
532 return mono_string_new_len (domain, data, len);
536 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
538 MonoDomain *domain = mono_domain_get ();
544 while (data [len]) len++;
546 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
550 mono_array_to_savearray (MonoArray *array)
555 g_assert_not_reached ();
560 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
574 klass = array->obj.vtable->klass;
576 switch (klass->element_class->byval_arg.type) {
578 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
587 case MONO_TYPE_BOOLEAN:
600 case MONO_TYPE_VALUETYPE:
604 case MONO_TYPE_GENERICINST:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_ARRAY:
607 case MONO_TYPE_SZARRAY:
608 case MONO_TYPE_STRING:
610 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
611 g_assert_not_reached ();
614 return array->vector;
618 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
629 klass = array->obj.vtable->klass;
631 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
632 for(i = 0; i < array->max_length; ++i)
633 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
640 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
642 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
644 if (elclass == mono_defaults.byte_class) {
645 GError *error = NULL;
649 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
652 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
656 g_error_free (error);
659 g_assert_not_reached ();
663 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
665 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
669 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
671 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
673 if (elclass == mono_defaults.byte_class) {
675 GError *error = NULL;
677 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
679 MonoException *exc = mono_get_exception_argument ("string", error->message);
680 g_error_free (error);
681 mono_raise_exception (exc);
684 memcpy (native_arr, as, MIN (strlen (as), elnum));
687 g_assert_not_reached ();
692 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
694 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
698 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
700 GError *error = NULL;
710 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
712 if (items_written > mono_stringbuilder_capacity (sb))
713 items_written = mono_stringbuilder_capacity (sb);
716 if (! sb->str || sb->str == sb->cached_str)
717 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
719 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
720 sb->length = items_written;
721 sb->cached_str = NULL;
723 g_error_free (error);
729 mono_string_utf8_to_builder2 (char *text)
732 MonoStringBuilder *sb;
733 static MonoClass *string_builder_class;
734 static MonoMethod *sb_ctor;
741 if (!string_builder_class) {
742 MonoMethodDesc *desc;
744 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
745 g_assert (string_builder_class);
746 desc = mono_method_desc_new (":.ctor(int)", FALSE);
747 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
749 mono_method_desc_free (desc);
754 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
757 mono_runtime_invoke (sb_ctor, sb, args, &exc);
760 mono_string_utf8_to_builder (sb, text);
766 * FIXME: This routine does not seem to do what it seems to do
767 * the @text is never copied into the string builder
770 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
777 g_assert (mono_string_chars (sb->str) == text);
779 for (len = 0; text [len] != 0; ++len)
786 mono_string_utf16_to_builder2 (gunichar2 *text)
789 MonoStringBuilder *sb;
790 static MonoClass *string_builder_class;
791 static MonoMethod *sb_ctor;
798 if (!string_builder_class) {
799 MonoMethodDesc *desc;
801 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
802 g_assert (string_builder_class);
803 desc = mono_method_desc_new (":.ctor(int)", FALSE);
804 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
806 mono_method_desc_free (desc);
809 for (len = 0; text [len] != 0; ++len)
812 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
815 mono_runtime_invoke (sb_ctor, sb, args, &exc);
819 memcpy (mono_string_chars (sb->str), text, len * 2);
825 * mono_string_builder_to_utf8:
826 * @sb: the string builder
828 * Converts to utf8 the contents of the MonoStringBuilder.
830 * Returns: a utf8 string with the contents of the StringBuilder.
832 * The return value must be released with g_free.
835 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
837 GError *error = NULL;
838 gchar *tmp, *res = NULL;
843 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
845 * The sb could have been allocated with the default capacity and be empty.
846 * we need to alloc a buffer of the default capacity in this case.
848 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
849 sb->cached_str = NULL;
852 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
854 g_error_free (error);
855 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
857 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
858 memcpy (res, tmp, sb->length + 1);
866 * mono_string_builder_to_utf16:
867 * @sb: the string builder
869 * Converts to utf16 the contents of the MonoStringBuilder.
871 * Returns: a utf16 string with the contents of the StringBuilder.
873 * The return value must not be freed.
876 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
884 * The stringbuilder might not have ownership of this string. If this is
885 * the case, we must duplicate the string, so that we don't munge immutable
888 if (sb->str == sb->cached_str) {
890 * The sb could have been allocated with the default capacity and be empty.
891 * we need to alloc a buffer of the default capacity in this case.
893 if (sb->str->length == 0)
894 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
896 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
897 sb->cached_str = NULL;
901 *(mono_string_chars (sb->str)) = '\0';
903 return mono_string_chars (sb->str);
907 mono_string_to_lpstr (MonoString *s)
912 GError *error = NULL;
918 as = CoTaskMemAlloc (1);
923 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
925 MonoException *exc = mono_get_exception_argument ("string", error->message);
926 g_error_free (error);
927 mono_raise_exception(exc);
930 as = CoTaskMemAlloc (len + 1);
931 memcpy (as, tmp, len + 1);
936 return mono_string_to_utf8 (s);
941 mono_string_to_ansibstr (MonoString *string_obj)
943 g_error ("UnmanagedMarshal.BStr is not implemented.");
948 * mono_string_to_byvalstr:
949 * @dst: Where to store the null-terminated utf8 decoded string.
950 * @src: the MonoString to copy.
951 * @size: the maximum number of bytes to copy.
953 * Copies the MonoString pointed to by @src as a utf8 string
954 * into @dst, it copies at most @size bytes into the destination.
957 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
962 g_assert (dst != NULL);
965 memset (dst, 0, size);
969 s = mono_string_to_utf8 (src);
970 len = MIN (size, strlen (s));
973 memcpy (dst, s, len);
978 * mono_string_to_byvalwstr:
979 * @dst: Where to store the null-terminated utf16 decoded string.
980 * @src: the MonoString to copy.
981 * @size: the maximum number of bytes to copy.
983 * Copies the MonoString pointed to by @src as a utf16 string into
984 * @dst, it copies at most @size bytes into the destination (including
985 * a terminating 16-bit zero terminator).
988 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
992 g_assert (dst != NULL);
996 memset (dst, 0, size * 2);
1000 len = MIN (size, (mono_string_length (src)));
1001 memcpy (dst, mono_string_chars (src), size * 2);
1002 if (size <= mono_string_length (src))
1004 *((gunichar2 *) dst + len) = 0;
1008 mono_string_new_len_wrapper (const char *text, guint length)
1010 return mono_string_new_len (mono_domain_get (), text, length);
1016 * mono_mb_emit_exception_marshal_directive:
1018 * This function assumes ownership of MSG, which should be malloc-ed.
1021 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1026 s = mono_image_strdup (mb->method->klass->image, msg);
1031 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1034 #endif /* !DISABLE_JIT */
1037 mono_type_to_ldind (MonoType *type)
1043 switch (type->type) {
1045 return CEE_LDIND_I1;
1047 case MONO_TYPE_BOOLEAN:
1048 return CEE_LDIND_U1;
1050 return CEE_LDIND_I2;
1052 case MONO_TYPE_CHAR:
1053 return CEE_LDIND_U2;
1055 return CEE_LDIND_I4;
1057 return CEE_LDIND_U4;
1061 case MONO_TYPE_FNPTR:
1063 case MONO_TYPE_CLASS:
1064 case MONO_TYPE_STRING:
1065 case MONO_TYPE_OBJECT:
1066 case MONO_TYPE_SZARRAY:
1067 case MONO_TYPE_ARRAY:
1068 return CEE_LDIND_REF;
1071 return CEE_LDIND_I8;
1073 return CEE_LDIND_R4;
1075 return CEE_LDIND_R8;
1076 case MONO_TYPE_VALUETYPE:
1077 if (type->data.klass->enumtype) {
1078 type = mono_class_enum_basetype (type->data.klass);
1082 case MONO_TYPE_TYPEDBYREF:
1084 case MONO_TYPE_GENERICINST:
1085 type = &type->data.generic_class->container_class->byval_arg;
1088 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1094 mono_type_to_stind (MonoType *type)
1100 switch (type->type) {
1103 case MONO_TYPE_BOOLEAN:
1104 return CEE_STIND_I1;
1107 case MONO_TYPE_CHAR:
1108 return CEE_STIND_I2;
1111 return CEE_STIND_I4;
1115 case MONO_TYPE_FNPTR:
1117 case MONO_TYPE_CLASS:
1118 case MONO_TYPE_STRING:
1119 case MONO_TYPE_OBJECT:
1120 case MONO_TYPE_SZARRAY:
1121 case MONO_TYPE_ARRAY:
1122 return CEE_STIND_REF;
1125 return CEE_STIND_I8;
1127 return CEE_STIND_R4;
1129 return CEE_STIND_R8;
1130 case MONO_TYPE_VALUETYPE:
1131 if (type->data.klass->enumtype) {
1132 type = mono_class_enum_basetype (type->data.klass);
1136 case MONO_TYPE_TYPEDBYREF:
1138 case MONO_TYPE_GENERICINST:
1139 type = &type->data.generic_class->container_class->byval_arg;
1142 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1150 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1153 case MONO_MARSHAL_CONV_BOOL_I4:
1154 mono_mb_emit_ldloc (mb, 1);
1155 mono_mb_emit_ldloc (mb, 0);
1156 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1157 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1158 mono_mb_emit_byte (mb, 3);
1159 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1160 mono_mb_emit_byte (mb, CEE_BR_S);
1161 mono_mb_emit_byte (mb, 1);
1162 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1163 mono_mb_emit_byte (mb, CEE_STIND_I1);
1165 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1166 mono_mb_emit_ldloc (mb, 1);
1167 mono_mb_emit_ldloc (mb, 0);
1168 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1169 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1170 mono_mb_emit_byte (mb, 3);
1171 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1172 mono_mb_emit_byte (mb, CEE_BR_S);
1173 mono_mb_emit_byte (mb, 1);
1174 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1175 mono_mb_emit_byte (mb, CEE_STIND_I1);
1177 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1178 MonoClass *eklass = NULL;
1181 if (type->type == MONO_TYPE_SZARRAY) {
1182 eklass = type->data.klass;
1184 g_assert_not_reached ();
1187 esize = mono_class_native_size (eklass, NULL);
1189 /* create a new array */
1190 mono_mb_emit_ldloc (mb, 1);
1191 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1192 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1193 mono_mb_emit_byte (mb, CEE_STIND_I);
1195 if (eklass->blittable) {
1196 /* copy the elements */
1197 mono_mb_emit_ldloc (mb, 1);
1198 mono_mb_emit_byte (mb, CEE_LDIND_I);
1199 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1200 mono_mb_emit_byte (mb, CEE_ADD);
1201 mono_mb_emit_ldloc (mb, 0);
1202 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1203 mono_mb_emit_byte (mb, CEE_PREFIX1);
1204 mono_mb_emit_byte (mb, CEE_CPBLK);
1207 int array_var, src_var, dst_var, index_var;
1208 guint32 label2, label3;
1210 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1211 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1212 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1215 mono_mb_emit_ldloc (mb, 1);
1216 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1217 mono_mb_emit_stloc (mb, array_var);
1219 /* save the old src pointer */
1220 mono_mb_emit_ldloc (mb, 0);
1221 mono_mb_emit_stloc (mb, src_var);
1222 /* save the old dst pointer */
1223 mono_mb_emit_ldloc (mb, 1);
1224 mono_mb_emit_stloc (mb, dst_var);
1226 /* Emit marshalling loop */
1227 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1228 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1229 mono_mb_emit_stloc (mb, index_var);
1232 label2 = mono_mb_get_label (mb);
1233 mono_mb_emit_ldloc (mb, index_var);
1234 mono_mb_emit_ldloc (mb, array_var);
1235 mono_mb_emit_byte (mb, CEE_LDLEN);
1236 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1238 /* src is already set */
1241 mono_mb_emit_ldloc (mb, array_var);
1242 mono_mb_emit_ldloc (mb, index_var);
1243 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1244 mono_mb_emit_stloc (mb, 1);
1246 /* Do the conversion */
1247 emit_struct_conv (mb, eklass, TRUE);
1250 mono_mb_emit_add_to_local (mb, index_var, 1);
1252 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1254 mono_mb_patch_branch (mb, label3);
1256 /* restore the old src pointer */
1257 mono_mb_emit_ldloc (mb, src_var);
1258 mono_mb_emit_stloc (mb, 0);
1259 /* restore the old dst pointer */
1260 mono_mb_emit_ldloc (mb, dst_var);
1261 mono_mb_emit_stloc (mb, 1);
1265 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1266 MonoClass *eclass = mono_defaults.char_class;
1268 /* create a new array */
1269 mono_mb_emit_ldloc (mb, 1);
1270 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1271 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1272 mono_mb_emit_byte (mb, CEE_STIND_REF);
1274 mono_mb_emit_ldloc (mb, 1);
1275 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1276 mono_mb_emit_ldloc (mb, 0);
1277 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1278 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1281 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1282 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1283 mono_mb_emit_ldloc (mb, 1);
1284 mono_mb_emit_ldloc (mb, 0);
1285 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1286 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1288 mono_mb_emit_ldloc (mb, 1);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1292 mono_mb_emit_byte (mb, CEE_STIND_REF);
1294 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1295 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1296 mono_mb_emit_ldloc (mb, 1);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1299 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_icall (mb, mono_string_from_utf16);
1305 mono_mb_emit_byte (mb, CEE_STIND_REF);
1307 case MONO_MARSHAL_CONV_STR_LPTSTR:
1308 mono_mb_emit_ldloc (mb, 1);
1309 mono_mb_emit_ldloc (mb, 0);
1310 mono_mb_emit_byte (mb, CEE_LDIND_I);
1312 mono_mb_emit_icall (mb, mono_string_from_utf16);
1314 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1316 mono_mb_emit_byte (mb, CEE_STIND_REF);
1318 case MONO_MARSHAL_CONV_STR_LPSTR:
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_ldloc (mb, 0);
1321 mono_mb_emit_byte (mb, CEE_LDIND_I);
1322 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1323 mono_mb_emit_byte (mb, CEE_STIND_REF);
1325 case MONO_MARSHAL_CONV_STR_LPWSTR:
1326 mono_mb_emit_ldloc (mb, 1);
1327 mono_mb_emit_ldloc (mb, 0);
1328 mono_mb_emit_byte (mb, CEE_LDIND_I);
1329 mono_mb_emit_icall (mb, mono_string_from_utf16);
1330 mono_mb_emit_byte (mb, CEE_STIND_REF);
1332 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1333 MonoClass *klass = mono_class_from_mono_type (type);
1334 int src_var, dst_var;
1336 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1337 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1339 /* *dst = new object */
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1342 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1343 mono_mb_emit_byte (mb, CEE_STIND_REF);
1345 /* save the old src pointer */
1346 mono_mb_emit_ldloc (mb, 0);
1347 mono_mb_emit_stloc (mb, src_var);
1348 /* save the old dst pointer */
1349 mono_mb_emit_ldloc (mb, 1);
1350 mono_mb_emit_stloc (mb, dst_var);
1352 /* dst = pointer to newly created object data */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_byte (mb, CEE_LDIND_I);
1355 mono_mb_emit_icon (mb, sizeof (MonoObject));
1356 mono_mb_emit_byte (mb, CEE_ADD);
1357 mono_mb_emit_stloc (mb, 1);
1359 emit_struct_conv (mb, klass, TRUE);
1361 /* restore the old src pointer */
1362 mono_mb_emit_ldloc (mb, src_var);
1363 mono_mb_emit_stloc (mb, 0);
1364 /* restore the old dst pointer */
1365 mono_mb_emit_ldloc (mb, dst_var);
1366 mono_mb_emit_stloc (mb, 1);
1369 case MONO_MARSHAL_CONV_DEL_FTN: {
1370 MonoClass *klass = mono_class_from_mono_type (type);
1372 mono_mb_emit_ldloc (mb, 1);
1373 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1374 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1375 mono_mb_emit_ldloc (mb, 0);
1376 mono_mb_emit_byte (mb, CEE_LDIND_I);
1377 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1378 mono_mb_emit_byte (mb, CEE_STIND_REF);
1381 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1382 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1386 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1387 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1388 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1389 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1391 #endif /* DISABLE_COM */
1393 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1395 * Passing SafeHandles as ref does not allow the unmanaged code
1396 * to change the SafeHandle value. If the value is changed,
1397 * we should issue a diagnostic exception (NotSupportedException)
1398 * that informs the user that changes to handles in unmanaged code
1401 * Since we currently have no access to the original
1402 * SafeHandle that was used during the marshalling,
1403 * for now we just ignore this, and ignore/discard any
1404 * changes that might have happened to the handle.
1409 case MONO_MARSHAL_CONV_HANDLEREF: {
1411 * Passing HandleRefs in a struct that is ref()ed does not
1412 * copy the values back to the HandleRef
1417 case MONO_MARSHAL_CONV_STR_BSTR:
1418 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1419 case MONO_MARSHAL_CONV_STR_TBSTR:
1420 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1422 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1424 mono_mb_emit_exception_marshal_directive (mb, msg);
1431 conv_to_icall (MonoMarshalConv conv)
1434 case MONO_MARSHAL_CONV_STR_LPWSTR:
1435 return mono_marshal_string_to_utf16;
1436 case MONO_MARSHAL_CONV_LPWSTR_STR:
1437 return mono_string_from_utf16;
1438 case MONO_MARSHAL_CONV_LPTSTR_STR:
1439 return mono_string_new_wrapper;
1440 case MONO_MARSHAL_CONV_LPSTR_STR:
1441 return mono_string_new_wrapper;
1442 case MONO_MARSHAL_CONV_STR_LPTSTR:
1444 return mono_marshal_string_to_utf16;
1446 return mono_string_to_lpstr;
1448 case MONO_MARSHAL_CONV_STR_LPSTR:
1449 return mono_string_to_lpstr;
1450 case MONO_MARSHAL_CONV_STR_BSTR:
1451 return mono_string_to_bstr;
1452 case MONO_MARSHAL_CONV_BSTR_STR:
1453 return mono_string_from_bstr;
1454 case MONO_MARSHAL_CONV_STR_TBSTR:
1455 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1456 return mono_string_to_ansibstr;
1457 case MONO_MARSHAL_CONV_SB_LPSTR:
1458 return mono_string_builder_to_utf8;
1459 case MONO_MARSHAL_CONV_SB_LPTSTR:
1461 return mono_string_builder_to_utf16;
1463 return mono_string_builder_to_utf8;
1465 case MONO_MARSHAL_CONV_SB_LPWSTR:
1466 return mono_string_builder_to_utf16;
1467 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1468 return mono_array_to_savearray;
1469 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1470 return mono_array_to_lparray;
1471 case MONO_MARSHAL_FREE_LPARRAY:
1472 return mono_free_lparray;
1473 case MONO_MARSHAL_CONV_DEL_FTN:
1474 return mono_delegate_to_ftnptr;
1475 case MONO_MARSHAL_CONV_FTN_DEL:
1476 return mono_ftnptr_to_delegate;
1477 case MONO_MARSHAL_CONV_LPSTR_SB:
1478 return mono_string_utf8_to_builder;
1479 case MONO_MARSHAL_CONV_LPTSTR_SB:
1481 return mono_string_utf16_to_builder;
1483 return mono_string_utf8_to_builder;
1485 case MONO_MARSHAL_CONV_LPWSTR_SB:
1486 return mono_string_utf16_to_builder;
1487 case MONO_MARSHAL_FREE_ARRAY:
1488 return mono_marshal_free_array;
1489 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1490 return mono_string_to_byvalstr;
1491 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1492 return mono_string_to_byvalwstr;
1494 g_assert_not_reached ();
1501 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1506 case MONO_MARSHAL_CONV_BOOL_I4:
1507 mono_mb_emit_ldloc (mb, 1);
1508 mono_mb_emit_ldloc (mb, 0);
1509 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1510 mono_mb_emit_byte (mb, CEE_STIND_I4);
1512 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1516 mono_mb_emit_byte (mb, CEE_NEG);
1517 mono_mb_emit_byte (mb, CEE_STIND_I2);
1519 case MONO_MARSHAL_CONV_STR_LPWSTR:
1520 case MONO_MARSHAL_CONV_STR_LPSTR:
1521 case MONO_MARSHAL_CONV_STR_LPTSTR:
1522 case MONO_MARSHAL_CONV_STR_BSTR:
1523 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1524 case MONO_MARSHAL_CONV_STR_TBSTR: {
1527 /* free space if free == true */
1528 mono_mb_emit_ldloc (mb, 2);
1529 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, CEE_LDIND_I);
1532 mono_mb_emit_icall (mb, g_free);
1533 mono_mb_patch_short_branch (mb, pos);
1535 mono_mb_emit_ldloc (mb, 1);
1536 mono_mb_emit_ldloc (mb, 0);
1537 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1538 mono_mb_emit_icall (mb, conv_to_icall (conv));
1539 mono_mb_emit_byte (mb, CEE_STIND_I);
1542 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1543 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1544 case MONO_MARSHAL_CONV_DEL_FTN:
1545 mono_mb_emit_ldloc (mb, 1);
1546 mono_mb_emit_ldloc (mb, 0);
1547 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1548 mono_mb_emit_icall (mb, conv_to_icall (conv));
1549 mono_mb_emit_byte (mb, CEE_STIND_I);
1551 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1552 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1555 mono_mb_emit_ldloc (mb, 1); /* dst */
1556 mono_mb_emit_ldloc (mb, 0);
1557 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1558 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1559 mono_mb_emit_icall (mb, conv_to_icall (conv));
1562 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1563 MonoClass *eklass = NULL;
1566 if (type->type == MONO_TYPE_SZARRAY) {
1567 eklass = type->data.klass;
1569 g_assert_not_reached ();
1572 if (eklass->valuetype)
1573 esize = mono_class_native_size (eklass, NULL);
1575 esize = sizeof (gpointer);
1577 mono_mb_emit_ldloc (mb, 0);
1578 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1579 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1581 if (eklass->blittable) {
1582 mono_mb_emit_ldloc (mb, 1);
1583 mono_mb_emit_ldloc (mb, 0);
1584 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1585 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1586 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1587 mono_mb_emit_byte (mb, CEE_PREFIX1);
1588 mono_mb_emit_byte (mb, CEE_CPBLK);
1590 int array_var, src_var, dst_var, index_var;
1591 guint32 label2, label3;
1593 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1594 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1595 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1598 mono_mb_emit_ldloc (mb, 0);
1599 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1600 mono_mb_emit_stloc (mb, array_var);
1602 /* save the old src pointer */
1603 mono_mb_emit_ldloc (mb, 0);
1604 mono_mb_emit_stloc (mb, src_var);
1605 /* save the old dst pointer */
1606 mono_mb_emit_ldloc (mb, 1);
1607 mono_mb_emit_stloc (mb, dst_var);
1609 /* Emit marshalling loop */
1610 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1611 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1612 mono_mb_emit_stloc (mb, index_var);
1615 label2 = mono_mb_get_label (mb);
1616 mono_mb_emit_ldloc (mb, index_var);
1617 mono_mb_emit_ldloc (mb, array_var);
1618 mono_mb_emit_byte (mb, CEE_LDLEN);
1619 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1622 mono_mb_emit_ldloc (mb, array_var);
1623 mono_mb_emit_ldloc (mb, index_var);
1624 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1625 mono_mb_emit_stloc (mb, 0);
1627 /* dst is already set */
1629 /* Do the conversion */
1630 emit_struct_conv (mb, eklass, FALSE);
1633 mono_mb_emit_add_to_local (mb, index_var, 1);
1635 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1637 mono_mb_patch_branch (mb, label3);
1639 /* restore the old src pointer */
1640 mono_mb_emit_ldloc (mb, src_var);
1641 mono_mb_emit_stloc (mb, 0);
1642 /* restore the old dst pointer */
1643 mono_mb_emit_ldloc (mb, dst_var);
1644 mono_mb_emit_stloc (mb, 1);
1647 mono_mb_patch_branch (mb, pos);
1650 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1651 mono_mb_emit_ldloc (mb, 0);
1652 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1653 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1655 mono_mb_emit_ldloc (mb, 1);
1656 mono_mb_emit_ldloc (mb, 0);
1657 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1658 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1659 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1660 mono_mb_patch_short_branch (mb, pos);
1663 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1664 int src_var, dst_var;
1666 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1667 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1669 mono_mb_emit_ldloc (mb, 0);
1670 mono_mb_emit_byte (mb, CEE_LDIND_I);
1671 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1673 /* save the old src pointer */
1674 mono_mb_emit_ldloc (mb, 0);
1675 mono_mb_emit_stloc (mb, src_var);
1676 /* save the old dst pointer */
1677 mono_mb_emit_ldloc (mb, 1);
1678 mono_mb_emit_stloc (mb, dst_var);
1680 /* src = pointer to object data */
1681 mono_mb_emit_ldloc (mb, 0);
1682 mono_mb_emit_byte (mb, CEE_LDIND_I);
1683 mono_mb_emit_icon (mb, sizeof (MonoObject));
1684 mono_mb_emit_byte (mb, CEE_ADD);
1685 mono_mb_emit_stloc (mb, 0);
1687 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1689 /* restore the old src pointer */
1690 mono_mb_emit_ldloc (mb, src_var);
1691 mono_mb_emit_stloc (mb, 0);
1692 /* restore the old dst pointer */
1693 mono_mb_emit_ldloc (mb, dst_var);
1694 mono_mb_emit_stloc (mb, 1);
1696 mono_mb_patch_branch (mb, pos);
1701 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1702 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1703 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1704 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1706 #endif /* DISABLE_COM */
1708 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_byte (mb, CEE_LDIND_I);
1713 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1714 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1715 mono_mb_patch_branch (mb, pos);
1717 /* Pull the handle field from SafeHandle */
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_ldloc (mb, 0);
1720 mono_mb_emit_byte (mb, CEE_LDIND_I);
1721 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1722 mono_mb_emit_byte (mb, CEE_LDIND_I);
1723 mono_mb_emit_byte (mb, CEE_STIND_I);
1727 case MONO_MARSHAL_CONV_HANDLEREF: {
1728 mono_mb_emit_ldloc (mb, 1);
1729 mono_mb_emit_ldloc (mb, 0);
1730 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1731 mono_mb_emit_byte (mb, CEE_ADD);
1732 mono_mb_emit_byte (mb, CEE_LDIND_I);
1733 mono_mb_emit_byte (mb, CEE_STIND_I);
1738 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1739 MonoException *exc = mono_get_exception_not_implemented (msg);
1740 g_warning ("%s", msg);
1742 mono_raise_exception (exc);
1748 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1749 MonoMarshalNative string_encoding)
1751 MonoMarshalType *info;
1755 emit_struct_conv(mb, klass->parent, to_object);
1757 info = mono_marshal_load_type_info (klass);
1759 if (info->native_size == 0)
1762 if (klass->blittable) {
1763 int msize = mono_class_value_size (klass, NULL);
1764 g_assert (msize == info->native_size);
1765 mono_mb_emit_ldloc (mb, 1);
1766 mono_mb_emit_ldloc (mb, 0);
1767 mono_mb_emit_icon (mb, msize);
1768 mono_mb_emit_byte (mb, CEE_PREFIX1);
1769 mono_mb_emit_byte (mb, CEE_CPBLK);
1771 mono_mb_emit_add_to_local (mb, 0, msize);
1772 mono_mb_emit_add_to_local (mb, 1, msize);
1776 if (klass != mono_defaults.safehandle_class) {
1777 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1778 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1779 mono_type_full_name (&klass->byval_arg));
1780 mono_mb_emit_exception_marshal_directive (mb, msg);
1785 for (i = 0; i < info->num_fields; i++) {
1786 MonoMarshalNative ntype;
1787 MonoMarshalConv conv;
1788 MonoType *ftype = info->fields [i].field->type;
1791 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1793 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1796 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1799 msize = klass->instance_size - info->fields [i].field->offset;
1800 usize = info->native_size - info->fields [i].offset;
1802 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1803 usize = info->fields [i + 1].offset - info->fields [i].offset;
1806 if (klass != mono_defaults.safehandle_class){
1808 * FIXME: Should really check for usize==0 and msize>0, but we apply
1809 * the layout to the managed structure as well.
1812 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1813 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1814 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1815 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1816 "reference field at the same offset as another field.",
1817 mono_type_full_name (&klass->byval_arg));
1822 case MONO_MARSHAL_CONV_NONE: {
1825 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1826 ftype->type == MONO_TYPE_U) {
1827 mono_mb_emit_ldloc (mb, 1);
1828 mono_mb_emit_ldloc (mb, 0);
1829 mono_mb_emit_byte (mb, CEE_LDIND_I);
1830 mono_mb_emit_byte (mb, CEE_STIND_I);
1841 case MONO_TYPE_BOOLEAN:
1844 case MONO_TYPE_CHAR:
1850 mono_mb_emit_ldloc (mb, 1);
1851 mono_mb_emit_ldloc (mb, 0);
1852 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1854 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1855 mono_mb_emit_byte (mb, CEE_STIND_I2);
1857 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1858 mono_mb_emit_byte (mb, CEE_STIND_I1);
1861 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1862 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1865 case MONO_TYPE_VALUETYPE: {
1866 int src_var, dst_var;
1868 if (ftype->data.klass->enumtype) {
1869 ftype = mono_class_enum_basetype (ftype->data.klass);
1873 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1874 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1876 /* save the old src pointer */
1877 mono_mb_emit_ldloc (mb, 0);
1878 mono_mb_emit_stloc (mb, src_var);
1879 /* save the old dst pointer */
1880 mono_mb_emit_ldloc (mb, 1);
1881 mono_mb_emit_stloc (mb, dst_var);
1883 emit_struct_conv (mb, ftype->data.klass, to_object);
1885 /* restore the old src pointer */
1886 mono_mb_emit_ldloc (mb, src_var);
1887 mono_mb_emit_stloc (mb, 0);
1888 /* restore the old dst pointer */
1889 mono_mb_emit_ldloc (mb, dst_var);
1890 mono_mb_emit_stloc (mb, 1);
1893 case MONO_TYPE_OBJECT: {
1896 static MonoMethod *variant_clear = NULL;
1897 static MonoMethod *get_object_for_native_variant = NULL;
1900 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1901 if (!get_object_for_native_variant)
1902 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1903 mono_mb_emit_ldloc (mb, 1);
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1906 mono_mb_emit_byte (mb, CEE_STIND_REF);
1908 mono_mb_emit_ldloc (mb, 0);
1909 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1912 static MonoMethod *get_native_variant_for_object = NULL;
1914 if (!get_native_variant_for_object)
1915 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1919 mono_mb_emit_ldloc (mb, 1);
1920 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1923 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1924 mono_mb_emit_exception_marshal_directive (mb, msg);
1930 g_warning ("marshaling type %02x not implemented", ftype->type);
1931 g_assert_not_reached ();
1936 int src_var, dst_var;
1938 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1939 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1941 /* save the old src pointer */
1942 mono_mb_emit_ldloc (mb, 0);
1943 mono_mb_emit_stloc (mb, src_var);
1944 /* save the old dst pointer */
1945 mono_mb_emit_ldloc (mb, 1);
1946 mono_mb_emit_stloc (mb, dst_var);
1949 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1951 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1953 /* restore the old src pointer */
1954 mono_mb_emit_ldloc (mb, src_var);
1955 mono_mb_emit_stloc (mb, 0);
1956 /* restore the old dst pointer */
1957 mono_mb_emit_ldloc (mb, dst_var);
1958 mono_mb_emit_stloc (mb, 1);
1963 mono_mb_emit_add_to_local (mb, 0, usize);
1964 mono_mb_emit_add_to_local (mb, 1, msize);
1966 mono_mb_emit_add_to_local (mb, 0, msize);
1967 mono_mb_emit_add_to_local (mb, 1, usize);
1973 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1975 emit_struct_conv_full (mb, klass, to_object, -1);
1979 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1981 /* Call DestroyStructure */
1982 /* FIXME: Only do this if needed */
1983 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1984 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1985 mono_mb_emit_ldloc (mb, struct_var);
1986 mono_mb_emit_icall (mb, mono_struct_delete_old);
1990 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1992 int pos_noabort, pos_noex;
1994 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1995 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1996 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1998 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1999 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2001 mono_mb_emit_icall (mb, checkpoint_func);
2002 /* Throw the exception returned by the checkpoint function, if any */
2003 mono_mb_emit_byte (mb, CEE_DUP);
2004 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2005 mono_mb_emit_byte (mb, CEE_THROW);
2006 mono_mb_patch_branch (mb, pos_noex);
2007 mono_mb_emit_byte (mb, CEE_POP);
2009 mono_mb_patch_branch (mb, pos_noabort);
2013 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2015 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2018 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2022 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2024 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2028 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2030 emit_thread_interrupt_checkpoint (mb);
2034 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2036 emit_thread_force_interrupt_checkpoint (mb);
2039 #endif /* DISABLE_JIT */
2041 static MonoAsyncResult *
2042 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2044 MonoMethodMessage *msg;
2045 MonoDelegate *async_callback;
2046 MonoMulticastDelegate *mcast_delegate;
2050 MonoMethod *method = NULL, *method2 = NULL;
2052 g_assert (delegate);
2053 mcast_delegate = (MonoMulticastDelegate *) delegate;
2054 if (mcast_delegate->prev != NULL)
2055 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2057 #ifndef DISABLE_REMOTING
2058 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2060 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2061 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2063 /* If the target is a proxy, make a direct call. Is proxy's work
2064 // to make the call asynchronous.
2066 MonoAsyncResult *ares;
2068 MonoArray *out_args;
2069 method = delegate->method;
2071 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2072 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2073 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2074 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2075 MONO_OBJECT_SETREF (msg, async_result, ares);
2076 msg->call_type = CallType_BeginInvoke;
2079 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2081 mono_raise_exception ((MonoException *) exc);
2087 klass = delegate->object.vtable->klass;
2089 method = mono_get_delegate_invoke (klass);
2090 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2093 g_assert (method != NULL);
2095 im = mono_get_delegate_invoke (method->klass);
2096 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2098 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2104 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2106 int i, params_var, tmp_var;
2108 /* allocate local (pointer) *params[] */
2109 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2110 /* allocate local (pointer) tmp */
2111 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2113 /* alloate space on stack to store an array of pointers to the arguments */
2114 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2115 mono_mb_emit_byte (mb, CEE_PREFIX1);
2116 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2117 mono_mb_emit_stloc (mb, params_var);
2120 mono_mb_emit_ldloc (mb, params_var);
2121 mono_mb_emit_stloc (mb, tmp_var);
2123 if (save_this && sig->hasthis) {
2124 mono_mb_emit_ldloc (mb, tmp_var);
2125 mono_mb_emit_ldarg_addr (mb, 0);
2126 mono_mb_emit_byte (mb, CEE_STIND_I);
2127 /* tmp = tmp + sizeof (gpointer) */
2128 if (sig->param_count)
2129 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2133 for (i = 0; i < sig->param_count; i++) {
2134 mono_mb_emit_ldloc (mb, tmp_var);
2135 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2136 mono_mb_emit_byte (mb, CEE_STIND_I);
2137 /* tmp = tmp + sizeof (gpointer) */
2138 if (i < (sig->param_count - 1))
2139 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2145 #endif /* DISABLE_JIT */
2148 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2152 GString *res = g_string_new ("");
2155 g_string_append (res, prefix);
2156 g_string_append_c (res, '_');
2159 mono_type_get_desc (res, sig->ret, FALSE);
2162 g_string_append (res, "__this__");
2164 for (i = 0; i < sig->param_count; ++i) {
2165 g_string_append_c (res, '_');
2166 mono_type_get_desc (res, sig->params [i], FALSE);
2169 g_string_free (res, FALSE);
2174 * mono_marshal_get_string_encoding:
2176 * Return the string encoding which should be used for a given parameter.
2178 static MonoMarshalNative
2179 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2181 /* First try the parameter marshal info */
2183 if (spec->native == MONO_NATIVE_LPARRAY) {
2184 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2185 return spec->data.array_data.elem_type;
2188 return spec->native;
2192 return MONO_NATIVE_LPSTR;
2194 /* Then try the method level marshal info */
2195 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2196 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2197 return MONO_NATIVE_LPSTR;
2198 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2199 return MONO_NATIVE_LPWSTR;
2200 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2202 return MONO_NATIVE_LPWSTR;
2204 return MONO_NATIVE_LPSTR;
2207 return MONO_NATIVE_LPSTR;
2211 static MonoMarshalConv
2212 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2214 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2217 case MONO_NATIVE_LPWSTR:
2218 return MONO_MARSHAL_CONV_STR_LPWSTR;
2219 case MONO_NATIVE_LPSTR:
2220 case MONO_NATIVE_VBBYREFSTR:
2221 return MONO_MARSHAL_CONV_STR_LPSTR;
2222 case MONO_NATIVE_LPTSTR:
2223 return MONO_MARSHAL_CONV_STR_LPTSTR;
2224 case MONO_NATIVE_BSTR:
2225 return MONO_MARSHAL_CONV_STR_BSTR;
2231 static MonoMarshalConv
2232 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2234 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2237 case MONO_NATIVE_LPWSTR:
2238 return MONO_MARSHAL_CONV_SB_LPWSTR;
2240 case MONO_NATIVE_LPSTR:
2241 return MONO_MARSHAL_CONV_SB_LPSTR;
2243 case MONO_NATIVE_LPTSTR:
2244 return MONO_MARSHAL_CONV_SB_LPTSTR;
2251 static MonoMarshalConv
2252 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2254 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2259 case MONO_NATIVE_LPWSTR:
2261 return MONO_MARSHAL_CONV_LPWSTR_STR;
2262 case MONO_NATIVE_LPSTR:
2263 case MONO_NATIVE_VBBYREFSTR:
2264 return MONO_MARSHAL_CONV_LPSTR_STR;
2265 case MONO_NATIVE_LPTSTR:
2266 return MONO_MARSHAL_CONV_LPTSTR_STR;
2267 case MONO_NATIVE_BSTR:
2268 return MONO_MARSHAL_CONV_BSTR_STR;
2274 static MonoMarshalConv
2275 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2277 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2282 case MONO_NATIVE_LPWSTR:
2284 * mono_string_builder_to_utf16 does not allocate a
2285 * new buffer, so no need to free it.
2288 return MONO_MARSHAL_CONV_LPWSTR_SB;
2289 case MONO_NATIVE_LPSTR:
2290 return MONO_MARSHAL_CONV_LPSTR_SB;
2292 case MONO_NATIVE_LPTSTR:
2293 return MONO_MARSHAL_CONV_LPTSTR_SB;
2301 * Return whenever a field of a native structure or an array member needs to
2305 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2307 MonoMarshalNative encoding;
2310 case MONO_TYPE_VALUETYPE:
2311 /* FIXME: Optimize this */
2313 case MONO_TYPE_OBJECT:
2314 case MONO_TYPE_CLASS:
2315 if (t->data.klass == mono_defaults.stringbuilder_class) {
2317 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2321 case MONO_TYPE_STRING:
2322 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2323 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2330 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2333 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2336 mono_marshal_lock ();
2339 g_hash_table_new (hash_func, equal_func);
2340 mono_memory_barrier ();
2343 mono_marshal_unlock ();
2349 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2351 return get_cache (var, hash_func, equal_func);
2355 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2359 mono_marshal_lock ();
2360 res = g_hash_table_lookup (cache, key);
2361 mono_marshal_unlock ();
2368 * Create a MonoMethod from MB, set INFO as wrapper info.
2371 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2372 int max_stack, WrapperInfo *info)
2376 res = mono_mb_create_method (mb, sig, max_stack);
2378 mono_marshal_set_wrapper_info (res, info);
2382 /* Create the method from the builder and place it in the cache */
2384 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2385 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2386 int max_stack, WrapperInfo *info, gboolean *out_found)
2393 mono_marshal_lock ();
2394 res = g_hash_table_lookup (cache, key);
2395 mono_marshal_unlock ();
2398 newm = mono_mb_create_method (mb, sig, max_stack);
2399 mono_marshal_lock ();
2400 res = g_hash_table_lookup (cache, key);
2403 g_hash_table_insert (cache, key, res);
2405 mono_marshal_set_wrapper_info (res, info);
2407 mono_marshal_set_wrapper_info (res, key);
2408 mono_marshal_unlock ();
2412 mono_marshal_unlock ();
2413 mono_free_method (newm);
2421 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2422 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2425 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2429 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2432 int wrapper_type = wrapper->wrapper_type;
2435 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2438 switch (wrapper_type) {
2439 case MONO_WRAPPER_REMOTING_INVOKE:
2440 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2441 case MONO_WRAPPER_XDOMAIN_INVOKE:
2442 case MONO_WRAPPER_SYNCHRONIZED:
2443 case MONO_WRAPPER_UNBOX:
2444 res = mono_marshal_get_wrapper_info (wrapper);
2447 if (wrapper->is_inflated) {
2451 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2452 * contains an uninflated method.
2454 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2455 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2459 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2460 info = mono_marshal_get_wrapper_info (wrapper);
2461 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2462 return info->d.managed_to_native.method;
2465 case MONO_WRAPPER_RUNTIME_INVOKE:
2466 info = mono_marshal_get_wrapper_info (wrapper);
2467 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2468 return info->d.runtime_invoke.method;
2477 * mono_marshal_get_wrapper_info:
2479 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2480 * returned depends on the wrapper type. It is usually a method, a class, or a
2481 * WrapperInfo structure.
2484 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2486 g_assert (wrapper->wrapper_type);
2488 return mono_method_get_wrapper_data (wrapper, 1);
2492 * mono_marshal_set_wrapper_info:
2494 * Store an arbitrary pointer inside the wrapper which is retrievable by
2495 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2496 * wrapper (method->wrapper_type).
2499 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2503 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2506 datav = ((MonoMethodWrapper *)method)->method_data;
2511 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2515 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2516 info->subtype = subtype;
2521 * get_wrapper_target_class:
2523 * Return the class where a wrapper method should be placed.
2526 get_wrapper_target_class (MonoImage *image)
2533 * - can't put all wrappers into an mscorlib class, because they reference
2534 * metadata (signature) so they should be put into the same image as the
2535 * method they wrap, so they are unloaded together.
2536 * - putting them into a class with a type initalizer could cause the
2537 * initializer to be executed which can be a problem if the wrappers are
2539 * - putting them into an inflated class can cause problems if the the
2540 * class is deleted because it references an image which is unloaded.
2541 * To avoid these problems, we put the wrappers into the <Module> class of
2544 if (image_is_dynamic (image)) {
2545 klass = ((MonoDynamicImage*)image)->wrappers_type;
2547 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2548 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2556 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2557 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2561 * check_generic_wrapper_cache:
2563 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2564 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2565 * generic method definition.
2568 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2571 MonoMethod *inst, *def;
2572 MonoGenericContext *ctx;
2574 g_assert (orig_method->is_inflated);
2575 ctx = mono_method_get_context (orig_method);
2578 * Look for the instance
2580 res = mono_marshal_find_in_cache (cache, key);
2585 * Look for the definition
2587 def = mono_marshal_find_in_cache (cache, def_key);
2590 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2591 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2593 mono_memory_barrier ();
2594 mono_marshal_lock ();
2595 res = g_hash_table_lookup (cache, key);
2597 g_hash_table_insert (cache, key, inst);
2600 mono_marshal_unlock ();
2607 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2610 MonoMethod *inst, *res;
2613 * We use the same cache for the generic definition and the instances.
2615 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2616 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2617 mono_memory_barrier ();
2618 mono_marshal_lock ();
2619 res = g_hash_table_lookup (cache, key);
2621 g_hash_table_insert (cache, key, inst);
2624 mono_marshal_unlock ();
2629 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2633 MonoMethod *inst, *def;
2636 * Look for the instance
2638 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2643 * Look for the definition
2645 def = mono_marshal_find_in_cache (cache, def_method->klass);
2647 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2648 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2651 mono_memory_barrier ();
2652 mono_marshal_lock ();
2653 res = g_hash_table_lookup (cache, orig_method->klass);
2655 g_hash_table_insert (cache, orig_method->klass, inst);
2658 mono_marshal_unlock ();
2665 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2668 MonoMethod *inst, *res;
2671 * We use the same cache for the generic definition and the instances.
2673 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2674 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2676 mono_memory_barrier ();
2677 mono_marshal_lock ();
2678 res = g_hash_table_lookup (cache, orig_method->klass);
2680 g_hash_table_insert (cache, orig_method->klass, inst);
2683 mono_marshal_unlock ();
2688 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2690 MonoMethodSignature *sig;
2691 MonoMethodBuilder *mb;
2696 MonoGenericContext *ctx = NULL;
2697 MonoMethod *orig_method = NULL;
2699 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2700 !strcmp (method->name, "BeginInvoke"));
2703 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2705 if (method->is_inflated) {
2706 orig_method = method;
2707 ctx = &((MonoMethodInflated*)method)->context;
2708 method = ((MonoMethodInflated*)method)->declaring;
2711 sig = mono_signature_no_pinvoke (method);
2717 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2718 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2722 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2723 (GHashFunc)mono_signature_hash,
2724 (GCompareFunc)mono_metadata_signature_equal);
2725 if ((res = mono_marshal_find_in_cache (cache, sig)))
2729 g_assert (sig->hasthis);
2731 name = mono_signature_to_name (sig, "begin_invoke");
2733 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2735 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2739 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2741 mono_mb_emit_ldarg (mb, 0);
2742 mono_mb_emit_ldloc (mb, params_var);
2743 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2744 mono_mb_emit_byte (mb, CEE_RET);
2749 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2750 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2752 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2760 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2762 MonoDomain *domain = mono_domain_get ();
2763 MonoAsyncResult *ares;
2764 MonoMethod *method = NULL;
2765 MonoMethodSignature *sig;
2766 MonoMethodMessage *msg;
2767 MonoObject *res, *exc;
2768 MonoArray *out_args;
2771 g_assert (delegate);
2773 if (!delegate->method_info) {
2774 g_assert (delegate->method);
2775 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2778 if (!delegate->method_info || !delegate->method_info->method)
2779 g_assert_not_reached ();
2781 klass = delegate->object.vtable->klass;
2783 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2784 g_assert (method != NULL);
2786 sig = mono_signature_no_pinvoke (method);
2788 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2790 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2792 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."));
2796 if (ares->async_delegate != (MonoObject*)delegate) {
2797 mono_raise_exception (mono_get_exception_invalid_operation (
2798 "The IAsyncResult object provided does not match this delegate."));
2802 #ifndef DISABLE_REMOTING
2803 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2804 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2805 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2806 mono_message_init (domain, msg, delegate->method_info, NULL);
2807 msg->call_type = CallType_EndInvoke;
2808 MONO_OBJECT_SETREF (msg, async_result, ares);
2809 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2813 res = mono_thread_pool_finish (ares, &out_args, &exc);
2817 if (((MonoException*)exc)->stack_trace) {
2818 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2820 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2822 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2825 mono_raise_exception ((MonoException*)exc);
2828 mono_method_return_message_restore (method, params, out_args);
2835 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2837 MonoType *t = mono_type_get_underlying_type (return_type);
2839 if (return_type->byref)
2840 return_type = &mono_defaults.int_class->byval_arg;
2843 case MONO_TYPE_VOID:
2844 g_assert_not_reached ();
2847 case MONO_TYPE_STRING:
2848 case MONO_TYPE_CLASS:
2849 case MONO_TYPE_OBJECT:
2850 case MONO_TYPE_ARRAY:
2851 case MONO_TYPE_SZARRAY:
2855 case MONO_TYPE_BOOLEAN:
2858 case MONO_TYPE_CHAR:
2868 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2869 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2871 case MONO_TYPE_GENERICINST:
2872 if (!mono_type_generic_inst_is_valuetype (t))
2875 case MONO_TYPE_VALUETYPE: {
2876 MonoClass *klass = mono_class_from_mono_type (return_type);
2877 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2878 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2882 case MONO_TYPE_MVAR: {
2883 MonoClass *klass = mono_class_from_mono_type (return_type);
2884 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2888 g_warning ("type 0x%x not handled", return_type->type);
2889 g_assert_not_reached ();
2892 mono_mb_emit_byte (mb, CEE_RET);
2895 #endif /* DISABLE_JIT */
2898 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2900 MonoMethodSignature *sig;
2901 MonoMethodBuilder *mb;
2906 MonoGenericContext *ctx = NULL;
2907 MonoMethod *orig_method = NULL;
2909 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2910 !strcmp (method->name, "EndInvoke"));
2913 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2915 if (method->is_inflated) {
2916 orig_method = method;
2917 ctx = &((MonoMethodInflated*)method)->context;
2918 method = ((MonoMethodInflated*)method)->declaring;
2921 sig = mono_signature_no_pinvoke (method);
2927 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2928 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2932 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2933 (GHashFunc)mono_signature_hash,
2934 (GCompareFunc)mono_metadata_signature_equal);
2935 if ((res = mono_marshal_find_in_cache (cache, sig)))
2939 g_assert (sig->hasthis);
2941 name = mono_signature_to_name (sig, "end_invoke");
2943 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2945 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2949 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2951 mono_mb_emit_ldarg (mb, 0);
2952 mono_mb_emit_ldloc (mb, params_var);
2953 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2955 if (sig->ret->type == MONO_TYPE_VOID) {
2956 mono_mb_emit_byte (mb, CEE_POP);
2957 mono_mb_emit_byte (mb, CEE_RET);
2959 mono_mb_emit_restore_result (mb, sig->ret);
2964 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2965 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2967 res = mono_mb_create_and_cache (cache, sig,
2968 mb, sig, sig->param_count + 16);
2977 MonoMethodSignature *sig;
2979 } SignaturePointerPair;
2982 signature_pointer_pair_hash (gconstpointer data)
2984 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2986 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2990 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2992 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2993 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2997 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
2999 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3001 return pair->pointer == user_data;
3005 free_signature_pointer_pair (SignaturePointerPair *pair)
3011 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3013 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3015 MonoMethodBuilder *mb;
3018 gpointer cache_key = NULL;
3019 SignaturePointerPair key;
3020 SignaturePointerPair *new_key;
3021 int local_prev, local_target;
3024 MonoClass *target_class = NULL;
3025 gboolean closed_over_null = FALSE;
3026 MonoGenericContext *ctx = NULL;
3027 MonoGenericContainer *container = NULL;
3028 MonoMethod *orig_method = NULL;
3030 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3033 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3034 !strcmp (method->name, "Invoke"));
3036 invoke_sig = sig = mono_signature_no_pinvoke (method);
3039 * If the delegate target is null, and the target method is not static, a virtual
3040 * call is made to that method with the first delegate argument as this. This is
3041 * a non-documented .NET feature.
3044 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3045 if (target_method->is_inflated) {
3046 MonoType *target_type;
3048 g_assert (method->signature->hasthis);
3049 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3050 mono_method_get_context (method));
3051 target_class = mono_class_from_mono_type (target_type);
3053 target_class = target_method->klass;
3056 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3059 if (static_method_with_first_arg_bound) {
3060 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3061 g_assert (!callvirt);
3062 invoke_sig = mono_method_signature (target_method);
3066 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3068 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3069 orig_method = method;
3070 ctx = &((MonoMethodInflated*)method)->context;
3071 method = ((MonoMethodInflated*)method)->declaring;
3073 container = mono_method_get_generic_container (method);
3075 container = method->klass->generic_container;
3076 g_assert (container);
3078 invoke_sig = sig = mono_signature_no_pinvoke (method);
3085 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3086 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3089 cache_key = method->klass;
3090 } else if (static_method_with_first_arg_bound) {
3091 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3092 (GHashFunc)mono_signature_hash,
3093 (GCompareFunc)mono_metadata_signature_equal);
3095 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3097 res = mono_marshal_find_in_cache (cache, invoke_sig);
3100 cache_key = invoke_sig;
3101 } else if (callvirt) {
3102 GHashTable **cache_ptr;
3104 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3106 /* We need to cache the signature+method pair */
3107 mono_marshal_lock ();
3109 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3111 key.sig = invoke_sig;
3112 key.pointer = target_method;
3113 res = g_hash_table_lookup (cache, &key);
3114 mono_marshal_unlock ();
3118 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3119 (GHashFunc)mono_signature_hash,
3120 (GCompareFunc)mono_metadata_signature_equal);
3121 res = mono_marshal_find_in_cache (cache, sig);
3127 static_sig = signature_dup (method->klass->image, sig);
3128 static_sig->hasthis = 0;
3129 if (!static_method_with_first_arg_bound)
3130 invoke_sig = static_sig;
3132 if (static_method_with_first_arg_bound)
3133 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3134 else if (closed_over_null)
3135 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3137 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3139 name = mono_signature_to_name (invoke_sig, "invoke");
3141 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3143 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3147 /* allocate local 0 (object) */
3148 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3149 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3151 g_assert (sig->hasthis);
3155 * prev.Invoke( args .. );
3156 * return this.<target>( args .. );
3159 /* this wrapper can be used in unmanaged-managed transitions */
3160 emit_thread_interrupt_checkpoint (mb);
3162 /* get this->prev */
3163 mono_mb_emit_ldarg (mb, 0);
3164 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3165 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3166 mono_mb_emit_stloc (mb, local_prev);
3167 mono_mb_emit_ldloc (mb, local_prev);
3169 /* if prev != null */
3170 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3174 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3175 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3177 mono_mb_emit_ldloc (mb, local_prev);
3178 for (i = 0; i < sig->param_count; i++)
3179 mono_mb_emit_ldarg (mb, i + 1);
3182 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3183 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3185 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3187 if (sig->ret->type != MONO_TYPE_VOID)
3188 mono_mb_emit_byte (mb, CEE_POP);
3190 /* continued or prev == null */
3191 mono_mb_patch_branch (mb, pos0);
3193 /* get this->target */
3194 mono_mb_emit_ldarg (mb, 0);
3195 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3196 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3197 mono_mb_emit_stloc (mb, local_target);
3199 /*static methods with bound first arg can have null target and still be bound*/
3200 if (!static_method_with_first_arg_bound) {
3201 /* if target != null */
3202 mono_mb_emit_ldloc (mb, local_target);
3203 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3205 /* then call this->method_ptr nonstatic */
3208 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3210 mono_mb_emit_ldloc (mb, local_target);
3211 for (i = 0; i < sig->param_count; ++i)
3212 mono_mb_emit_ldarg (mb, i + 1);
3213 mono_mb_emit_ldarg (mb, 0);
3214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3215 mono_mb_emit_byte (mb, CEE_LDIND_I );
3216 mono_mb_emit_op (mb, CEE_CALLI, sig);
3218 mono_mb_emit_byte (mb, CEE_RET);
3221 /* else [target == null] call this->method_ptr static */
3222 mono_mb_patch_branch (mb, pos0);
3226 if (!closed_over_null) {
3227 mono_mb_emit_ldarg (mb, 1);
3228 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3229 for (i = 1; i < sig->param_count; ++i)
3230 mono_mb_emit_ldarg (mb, i + 1);
3231 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3233 mono_mb_emit_byte (mb, CEE_LDNULL);
3234 for (i = 0; i < sig->param_count; ++i)
3235 mono_mb_emit_ldarg (mb, i + 1);
3236 mono_mb_emit_op (mb, CEE_CALL, target_method);
3239 if (static_method_with_first_arg_bound) {
3240 mono_mb_emit_ldloc (mb, local_target);
3241 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3242 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3244 for (i = 0; i < sig->param_count; ++i)
3245 mono_mb_emit_ldarg (mb, i + 1);
3246 mono_mb_emit_ldarg (mb, 0);
3247 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3248 mono_mb_emit_byte (mb, CEE_LDIND_I );
3249 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3252 mono_mb_emit_byte (mb, CEE_RET);
3254 mb->skip_visibility = 1;
3255 #endif /* DISABLE_JIT */
3260 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3261 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3262 } else if (callvirt) {
3263 new_key = g_new0 (SignaturePointerPair, 1);
3266 info = mono_wrapper_info_create (mb, subtype);
3268 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3272 info = mono_wrapper_info_create (mb, subtype);
3274 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3282 * the returned method invokes all methods in a multicast delegate.
3285 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3287 gboolean callvirt = FALSE;
3288 gboolean static_method_with_first_arg_bound = FALSE;
3289 MonoMethod *target_method = NULL;
3290 MonoMethodSignature *sig;
3292 sig = mono_signature_no_pinvoke (method);
3294 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3296 target_method = del->method;
3299 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3300 static_method_with_first_arg_bound = TRUE;
3301 target_method = del->method;
3304 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3308 * signature_dup_add_this:
3310 * Make a copy of @sig, adding an explicit this argument.
3312 static MonoMethodSignature*
3313 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3315 MonoMethodSignature *res;
3318 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3319 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3320 res->param_count = sig->param_count + 1;
3321 res->hasthis = FALSE;
3322 for (i = sig->param_count - 1; i >= 0; i --)
3323 res->params [i + 1] = sig->params [i];
3324 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3330 MonoMethodSignature *ctor_sig;
3331 MonoMethodSignature *sig;
3334 /* protected by the marshal lock, contains CtorSigPair pointers */
3335 static GSList *strsig_list = NULL;
3337 static MonoMethodSignature *
3338 lookup_string_ctor_signature (MonoMethodSignature *sig)
3340 MonoMethodSignature *callsig;
3344 mono_marshal_lock ();
3346 for (item = strsig_list; item; item = item->next) {
3348 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3349 * because it is lock-free.
3351 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3356 mono_marshal_unlock ();
3360 static MonoMethodSignature *
3361 add_string_ctor_signature (MonoMethod *method)
3363 MonoMethodSignature *callsig;
3366 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3367 callsig->ret = &mono_defaults.string_class->byval_arg;
3368 cs = g_new (CtorSigPair, 1);
3370 cs->ctor_sig = mono_method_signature (method);
3372 mono_marshal_lock ();
3373 strsig_list = g_slist_prepend (strsig_list, cs);
3374 mono_marshal_unlock ();
3379 * mono_marshal_get_string_ctor_signature:
3381 * Return the modified signature used by string ctors (they return the newly created
3384 MonoMethodSignature*
3385 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3387 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3389 sig = add_string_ctor_signature (method);
3395 get_runtime_invoke_type (MonoType *t, gboolean ret)
3398 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3400 /* Can't share this with 'I' as that needs another indirection */
3401 return &mono_defaults.int_class->this_arg;
3404 if (MONO_TYPE_IS_REFERENCE (t))
3405 return &mono_defaults.object_class->byval_arg;
3408 /* The result needs to be boxed */
3413 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3416 return &mono_defaults.sbyte_class->byval_arg;
3418 return &mono_defaults.int16_class->byval_arg;
3420 return &mono_defaults.int32_class->byval_arg;
3423 return &mono_defaults.int64_class->byval_arg;
3424 case MONO_TYPE_BOOLEAN:
3425 return &mono_defaults.byte_class->byval_arg;
3426 case MONO_TYPE_CHAR:
3427 return &mono_defaults.uint16_class->byval_arg;
3430 return &mono_defaults.int_class->byval_arg;
3431 case MONO_TYPE_VALUETYPE:
3432 if (t->data.klass->enumtype) {
3433 t = mono_class_enum_basetype (t->data.klass);
3443 * mono_marshal_get_runtime_invoke_sig:
3445 * Return a common signature used for sharing runtime invoke wrappers.
3447 static MonoMethodSignature*
3448 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3450 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3453 res->generic_param_count = 0;
3454 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3455 for (i = 0; i < res->param_count; ++i)
3456 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3462 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3464 /* Can't share wrappers which return a vtype since it needs to be boxed */
3465 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))
3468 return mono_metadata_signature_equal (sig1, sig2);
3476 * Emit the call to the wrapper method from a runtime invoke wrapper.
3479 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3480 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3482 gboolean virtual, gboolean need_direct_wrapper)
3484 static MonoString *string_dummy = NULL;
3486 int *tmp_nullable_locals;
3487 gboolean void_ret = FALSE;
3489 /* to make it work with our special string constructors */
3490 if (!string_dummy) {
3491 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3492 string_dummy = mono_string_new_wrapper ("dummy");
3496 g_assert (sig->hasthis);
3497 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3501 if (method->string_ctor) {
3502 if (mono_gc_is_moving ()) {
3503 mono_mb_emit_ptr (mb, &string_dummy);
3504 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3506 mono_mb_emit_ptr (mb, string_dummy);
3509 mono_mb_emit_ldarg (mb, 0);
3513 tmp_nullable_locals = g_new0 (int, sig->param_count);
3515 for (i = 0; i < sig->param_count; i++) {
3516 MonoType *t = sig->params [i];
3519 mono_mb_emit_ldarg (mb, 1);
3521 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3522 mono_mb_emit_byte (mb, CEE_ADD);
3526 mono_mb_emit_byte (mb, CEE_LDIND_I);
3527 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3528 * So to make this work we unbox it to a local variablee and push a reference to that.
3530 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3531 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3533 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3534 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3535 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3540 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3541 type = sig->params [i]->type;
3545 case MONO_TYPE_BOOLEAN:
3549 case MONO_TYPE_CHAR:
3558 mono_mb_emit_byte (mb, CEE_LDIND_I);
3559 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3561 case MONO_TYPE_STRING:
3562 case MONO_TYPE_CLASS:
3563 case MONO_TYPE_ARRAY:
3565 case MONO_TYPE_SZARRAY:
3566 case MONO_TYPE_OBJECT:
3567 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3569 case MONO_TYPE_GENERICINST:
3570 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3571 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3576 case MONO_TYPE_VALUETYPE:
3577 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3578 type = mono_class_enum_basetype (t->data.klass)->type;
3581 mono_mb_emit_byte (mb, CEE_LDIND_I);
3582 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3583 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3584 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3585 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3587 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3591 g_assert_not_reached ();
3596 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3597 } else if (need_direct_wrapper) {
3598 mono_mb_emit_op (mb, CEE_CALL, method);
3600 mono_mb_emit_ldarg (mb, 3);
3601 mono_mb_emit_calli (mb, callsig);
3604 if (sig->ret->byref) {
3606 g_assert_not_reached ();
3609 switch (sig->ret->type) {
3610 case MONO_TYPE_VOID:
3611 if (!method->string_ctor)
3614 case MONO_TYPE_BOOLEAN:
3615 case MONO_TYPE_CHAR:
3628 case MONO_TYPE_VALUETYPE:
3629 case MONO_TYPE_TYPEDBYREF:
3630 case MONO_TYPE_GENERICINST:
3631 /* box value types */
3632 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3634 case MONO_TYPE_STRING:
3635 case MONO_TYPE_CLASS:
3636 case MONO_TYPE_ARRAY:
3637 case MONO_TYPE_SZARRAY:
3638 case MONO_TYPE_OBJECT:
3642 /* The result is an IntPtr */
3643 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3646 g_assert_not_reached ();
3650 mono_mb_emit_stloc (mb, loc_res);
3652 /* Convert back nullable-byref arguments */
3653 for (i = 0; i < sig->param_count; i++) {
3654 MonoType *t = sig->params [i];
3657 * Box the result and put it back into the array, the caller will have
3658 * to obtain it from there.
3660 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3661 mono_mb_emit_ldarg (mb, 1);
3662 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3663 mono_mb_emit_byte (mb, CEE_ADD);
3665 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3666 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3668 mono_mb_emit_byte (mb, CEE_STIND_REF);
3672 g_free (tmp_nullable_locals);
3676 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3677 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3678 gboolean virtual, gboolean need_direct_wrapper)
3681 MonoExceptionClause *clause;
3682 int loc_res, loc_exc;
3684 /* The wrapper looks like this:
3690 * } catch (Exception e) {
3698 /* allocate local 0 (object) tmp */
3699 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3700 /* allocate local 1 (object) exc */
3701 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3703 /* *exc is assumed to be initialized to NULL by the caller */
3705 mono_mb_emit_byte (mb, CEE_LDARG_2);
3706 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3711 labels [1] = mono_mb_get_label (mb);
3712 emit_thread_force_interrupt_checkpoint (mb);
3713 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3715 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3717 /* Add a try clause around the call */
3718 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3719 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3720 clause->data.catch_class = mono_defaults.exception_class;
3721 clause->try_offset = labels [1];
3722 clause->try_len = mono_mb_get_label (mb) - labels [1];
3724 clause->handler_offset = mono_mb_get_label (mb);
3727 mono_mb_emit_stloc (mb, loc_exc);
3728 mono_mb_emit_byte (mb, CEE_LDARG_2);
3729 mono_mb_emit_ldloc (mb, loc_exc);
3730 mono_mb_emit_byte (mb, CEE_STIND_REF);
3732 mono_mb_emit_branch (mb, CEE_LEAVE);
3734 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3736 mono_mb_set_clauses (mb, 1, clause);
3738 mono_mb_patch_branch (mb, labels [2]);
3739 mono_mb_emit_ldloc (mb, loc_res);
3740 mono_mb_emit_byte (mb, CEE_RET);
3745 mono_mb_patch_branch (mb, labels [0]);
3746 emit_thread_force_interrupt_checkpoint (mb);
3747 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3749 mono_mb_emit_ldloc (mb, 0);
3750 mono_mb_emit_byte (mb, CEE_RET);
3755 * generates IL code for the runtime invoke function
3756 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3758 * we also catch exceptions if exc != null
3759 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3760 * it means that the compiled code for METHOD does not have to be looked up
3761 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3762 * its METHOD argument.
3765 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3767 MonoMethodSignature *sig, *csig, *callsig;
3768 MonoMethodBuilder *mb;
3769 GHashTable *cache = NULL;
3770 MonoClass *target_klass;
3771 MonoMethod *res = NULL;
3772 static MonoMethodSignature *cctor_signature = NULL;
3773 static MonoMethodSignature *finalize_signature = NULL;
3775 const char *param_names [16];
3776 gboolean need_direct_wrapper = FALSE;
3781 if (!cctor_signature) {
3782 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3783 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3785 if (!finalize_signature) {
3786 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3787 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3788 finalize_signature->hasthis = 1;
3792 need_direct_wrapper = TRUE;
3795 * Use a separate cache indexed by methods to speed things up and to avoid the
3796 * boundless mempool growth caused by the signature_dup stuff below.
3799 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3801 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3802 res = mono_marshal_find_in_cache (cache, method);
3806 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3807 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3809 * Array Get/Set/Address methods. The JIT implements them using inline code
3810 * so we need to create an invoke wrapper which calls the method directly.
3812 need_direct_wrapper = TRUE;
3815 if (method->string_ctor) {
3816 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3818 callsig = add_string_ctor_signature (method);
3819 /* Can't share this as we push a string as this */
3820 need_direct_wrapper = TRUE;
3822 if (method_is_dynamic (method))
3823 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3825 callsig = mono_method_signature (method);
3828 target_klass = get_wrapper_target_class (method->klass->image);
3830 /* Try to share wrappers for non-corlib methods with simple signatures */
3831 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3832 callsig = cctor_signature;
3833 target_klass = mono_defaults.object_class;
3834 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3835 callsig = finalize_signature;
3836 target_klass = mono_defaults.object_class;
3839 if (need_direct_wrapper) {
3840 /* Already searched at the start */
3842 MonoMethodSignature *tmp_sig;
3844 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3846 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3847 /* These have a different csig */
3848 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3849 (GHashFunc)mono_signature_hash,
3850 (GCompareFunc)runtime_invoke_signature_equal);
3852 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3853 (GHashFunc)mono_signature_hash,
3854 (GCompareFunc)runtime_invoke_signature_equal);
3856 /* from mono_marshal_find_in_cache */
3857 mono_marshal_lock ();
3858 res = g_hash_table_lookup (cache, callsig);
3859 mono_marshal_unlock ();
3866 /* Make a copy of the signature from the image mempool */
3868 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3872 sig = mono_method_signature (method);
3874 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3876 csig->ret = &mono_defaults.object_class->byval_arg;
3877 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3878 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3880 csig->params [0] = &mono_defaults.object_class->byval_arg;
3881 csig->params [1] = &mono_defaults.int_class->byval_arg;
3882 csig->params [2] = &mono_defaults.int_class->byval_arg;
3883 csig->params [3] = &mono_defaults.int_class->byval_arg;
3886 /* This is called from runtime code so it has to be cdecl */
3887 csig->call_convention = MONO_CALL_C;
3890 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3891 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3895 param_names [0] = "this";
3896 param_names [1] = "params";
3897 param_names [2] = "exc";
3898 param_names [3] = "method";
3899 mono_mb_set_param_names (mb, param_names);
3901 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3904 if (need_direct_wrapper) {
3906 mb->skip_visibility = 1;
3908 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3909 info->d.runtime_invoke.method = method;
3910 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3912 /* taken from mono_mb_create_and_cache */
3913 mono_marshal_lock ();
3914 res = g_hash_table_lookup (cache, callsig);
3915 mono_marshal_unlock ();
3917 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3918 info->d.runtime_invoke.sig = callsig;
3920 /* Somebody may have created it before us */
3923 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3925 mono_marshal_lock ();
3926 res = g_hash_table_lookup (cache, callsig);
3929 g_hash_table_insert (cache, callsig, res);
3930 /* Can't insert it into wrapper_hash since the key is a signature */
3931 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3933 mono_free_method (newm);
3935 mono_marshal_unlock ();
3938 /* end mono_mb_create_and_cache */
3947 * mono_marshal_get_runtime_invoke_dynamic:
3949 * Return a method which can be used to invoke managed methods from native code
3951 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3952 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3953 * ARGS should point to an architecture specific structure containing
3954 * the arguments and space for the return value.
3955 * The other arguments are the same as for runtime_invoke (), except that
3956 * ARGS should contain the this argument too.
3957 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3958 * is only one copy of it, which is useful in full-aot.
3959 * The wrapper info for the wrapper is a WrapperInfo structure.
3962 mono_marshal_get_runtime_invoke_dynamic (void)
3964 static MonoMethod *method;
3965 MonoMethodSignature *csig;
3966 MonoExceptionClause *clause;
3967 MonoMethodBuilder *mb;
3975 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3977 csig->ret = &mono_defaults.void_class->byval_arg;
3978 csig->params [0] = &mono_defaults.int_class->byval_arg;
3979 csig->params [1] = &mono_defaults.int_class->byval_arg;
3980 csig->params [2] = &mono_defaults.int_class->byval_arg;
3981 csig->params [3] = &mono_defaults.int_class->byval_arg;
3983 name = g_strdup ("runtime_invoke_dynamic");
3984 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
3988 /* allocate local 0 (object) tmp */
3989 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3990 /* allocate local 1 (object) exc */
3991 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3993 /* cond set *exc to null */
3994 mono_mb_emit_byte (mb, CEE_LDARG_1);
3995 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3996 mono_mb_emit_byte (mb, 3);
3997 mono_mb_emit_byte (mb, CEE_LDARG_1);
3998 mono_mb_emit_byte (mb, CEE_LDNULL);
3999 mono_mb_emit_byte (mb, CEE_STIND_REF);
4001 emit_thread_force_interrupt_checkpoint (mb);
4003 mono_mb_emit_byte (mb, CEE_LDARG_0);
4004 mono_mb_emit_byte (mb, CEE_LDARG_2);
4005 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4006 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4008 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4010 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4011 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4012 clause->try_len = mono_mb_get_label (mb);
4015 clause->data.filter_offset = mono_mb_get_label (mb);
4017 mono_mb_emit_byte (mb, CEE_POP);
4018 mono_mb_emit_byte (mb, CEE_LDARG_1);
4019 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4020 mono_mb_emit_byte (mb, CEE_PREFIX1);
4021 mono_mb_emit_byte (mb, CEE_CGT_UN);
4022 mono_mb_emit_byte (mb, CEE_PREFIX1);
4023 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4025 clause->handler_offset = mono_mb_get_label (mb);
4028 /* store exception */
4029 mono_mb_emit_stloc (mb, 1);
4031 mono_mb_emit_byte (mb, CEE_LDARG_1);
4032 mono_mb_emit_ldloc (mb, 1);
4033 mono_mb_emit_byte (mb, CEE_STIND_REF);
4035 mono_mb_emit_byte (mb, CEE_LDNULL);
4036 mono_mb_emit_stloc (mb, 0);
4038 /* Check for the abort exception */
4039 mono_mb_emit_ldloc (mb, 1);
4040 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4041 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4043 /* Delay the abort exception */
4044 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4046 mono_mb_patch_short_branch (mb, posna);
4047 mono_mb_emit_branch (mb, CEE_LEAVE);
4049 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4051 mono_mb_set_clauses (mb, 1, clause);
4054 mono_mb_patch_branch (mb, pos);
4055 //mono_mb_emit_ldloc (mb, 0);
4056 mono_mb_emit_byte (mb, CEE_RET);
4057 #endif /* DISABLE_JIT */
4059 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4061 mono_marshal_lock ();
4062 /* double-checked locking */
4064 method = mono_mb_create (mb, csig, 16, info);
4066 mono_marshal_unlock ();
4075 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4077 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4078 klass->name_space, klass->name);
4080 mono_mb_emit_exception_marshal_directive (mb, msg);
4085 * generates IL code for the icall wrapper (the generated method
4086 * calls the unmanaged code in func)
4087 * The wrapper info for the wrapper is a WrapperInfo structure.
4090 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4092 MonoMethodSignature *csig, *csig2;
4093 MonoMethodBuilder *mb;
4098 g_assert (sig->pinvoke);
4100 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4102 mb->method->save_lmf = 1;
4104 /* Add an explicit this argument */
4106 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4108 csig2 = signature_dup (mono_defaults.corlib, sig);
4112 mono_mb_emit_byte (mb, CEE_LDARG_0);
4114 for (i = 0; i < sig->param_count; i++)
4115 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4117 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4118 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4119 mono_mb_emit_calli (mb, csig2);
4120 if (check_exceptions)
4121 emit_thread_interrupt_checkpoint (mb);
4122 mono_mb_emit_byte (mb, CEE_RET);
4125 csig = signature_dup (mono_defaults.corlib, sig);
4127 if (csig->call_convention == MONO_CALL_VARARG)
4128 csig->call_convention = 0;
4130 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4131 info->d.icall.func = (gpointer)func;
4132 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4139 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4140 MonoMarshalSpec *spec,
4141 int conv_arg, MonoType **conv_arg_type,
4142 MarshalAction action)
4145 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4146 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4151 static MonoClass *ICustomMarshaler = NULL;
4152 static MonoMethod *cleanup_native, *cleanup_managed;
4153 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4154 MonoMethod *get_instance = NULL;
4155 MonoMethodBuilder *mb = m->mb;
4156 char *exception_msg = NULL;
4160 if (!ICustomMarshaler) {
4161 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4163 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4164 goto handle_exception;
4167 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4168 g_assert (cleanup_native);
4169 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4170 g_assert (cleanup_managed);
4171 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4172 g_assert (marshal_managed_to_native);
4173 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4174 g_assert (marshal_native_to_managed);
4176 mono_memory_barrier ();
4177 ICustomMarshaler = klass;
4180 if (spec->data.custom_data.image)
4181 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4183 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4184 g_assert (mtype != NULL);
4185 mklass = mono_class_from_mono_type (mtype);
4186 g_assert (mklass != NULL);
4188 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4189 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4191 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4193 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4194 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4195 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4196 (get_sig->params [0]->type != MONO_TYPE_STRING))
4197 get_instance = NULL;
4201 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);
4204 /* Throw exception and emit compensation code if neccesary */
4205 if (exception_msg) {
4207 case MARSHAL_ACTION_CONV_IN:
4208 case MARSHAL_ACTION_CONV_RESULT:
4209 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4210 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4211 mono_mb_emit_byte (mb, CEE_POP);
4213 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4214 g_free (exception_msg);
4217 case MARSHAL_ACTION_PUSH:
4218 mono_mb_emit_byte (mb, CEE_LDNULL);
4226 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4227 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4230 case MARSHAL_ACTION_CONV_IN:
4232 case MONO_TYPE_CLASS:
4233 case MONO_TYPE_OBJECT:
4234 case MONO_TYPE_STRING:
4235 case MONO_TYPE_ARRAY:
4236 case MONO_TYPE_SZARRAY:
4237 case MONO_TYPE_VALUETYPE:
4241 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4242 g_assert_not_reached ();
4246 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4248 mono_mb_emit_byte (mb, CEE_LDNULL);
4249 mono_mb_emit_stloc (mb, conv_arg);
4251 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4254 /* Minic MS.NET behavior */
4255 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4258 /* Check for null */
4259 mono_mb_emit_ldarg (mb, argnum);
4261 mono_mb_emit_byte (mb, CEE_LDIND_I);
4262 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4264 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4266 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4268 mono_mb_emit_ldarg (mb, argnum);
4270 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4272 if (t->type == MONO_TYPE_VALUETYPE) {
4274 * Since we can't determine the type of the argument, we
4275 * will assume the unmanaged function takes a pointer.
4277 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4279 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4282 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4283 mono_mb_emit_stloc (mb, conv_arg);
4285 mono_mb_patch_branch (mb, pos2);
4288 case MARSHAL_ACTION_CONV_OUT:
4289 /* Check for null */
4290 mono_mb_emit_ldloc (mb, conv_arg);
4291 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4294 mono_mb_emit_ldarg (mb, argnum);
4296 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4298 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4300 mono_mb_emit_ldloc (mb, conv_arg);
4301 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4302 mono_mb_emit_byte (mb, CEE_STIND_REF);
4303 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4304 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4306 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4308 mono_mb_emit_ldloc (mb, conv_arg);
4309 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4311 /* We have nowhere to store the result */
4312 mono_mb_emit_byte (mb, CEE_POP);
4315 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4317 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4319 mono_mb_emit_ldloc (mb, conv_arg);
4321 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4323 mono_mb_patch_branch (mb, pos2);
4326 case MARSHAL_ACTION_PUSH:
4328 mono_mb_emit_ldloc_addr (mb, conv_arg);
4330 mono_mb_emit_ldloc (mb, conv_arg);
4333 case MARSHAL_ACTION_CONV_RESULT:
4334 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4336 mono_mb_emit_stloc (mb, 3);
4338 mono_mb_emit_ldloc (mb, 3);
4339 mono_mb_emit_stloc (mb, loc1);
4341 /* Check for null */
4342 mono_mb_emit_ldloc (mb, 3);
4343 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4345 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4347 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4348 mono_mb_emit_byte (mb, CEE_DUP);
4350 mono_mb_emit_ldloc (mb, 3);
4351 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4352 mono_mb_emit_stloc (mb, 3);
4354 mono_mb_emit_ldloc (mb, loc1);
4355 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4357 mono_mb_patch_branch (mb, pos2);
4360 case MARSHAL_ACTION_MANAGED_CONV_IN:
4361 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4363 mono_mb_emit_byte (mb, CEE_LDNULL);
4364 mono_mb_emit_stloc (mb, conv_arg);
4366 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4369 /* Check for null */
4370 mono_mb_emit_ldarg (mb, argnum);
4372 mono_mb_emit_byte (mb, CEE_LDIND_I);
4373 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4375 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4376 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4378 mono_mb_emit_ldarg (mb, argnum);
4380 mono_mb_emit_byte (mb, CEE_LDIND_I);
4382 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4383 mono_mb_emit_stloc (mb, conv_arg);
4385 mono_mb_patch_branch (mb, pos2);
4388 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4389 g_assert (!t->byref);
4391 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4393 mono_mb_emit_stloc (mb, 3);
4395 mono_mb_emit_ldloc (mb, 3);
4396 mono_mb_emit_stloc (mb, loc1);
4398 /* Check for null */
4399 mono_mb_emit_ldloc (mb, 3);
4400 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4402 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4403 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4404 mono_mb_emit_byte (mb, CEE_DUP);
4406 mono_mb_emit_ldloc (mb, 3);
4407 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4408 mono_mb_emit_stloc (mb, 3);
4410 mono_mb_emit_ldloc (mb, loc1);
4411 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4413 mono_mb_patch_branch (mb, pos2);
4416 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4418 /* Check for null */
4419 mono_mb_emit_ldloc (mb, conv_arg);
4420 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4423 mono_mb_emit_ldarg (mb, argnum);
4425 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4427 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4429 mono_mb_emit_ldloc (mb, conv_arg);
4430 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4431 mono_mb_emit_byte (mb, CEE_STIND_I);
4434 /* Call CleanUpManagedData */
4435 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4437 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4439 mono_mb_emit_ldloc (mb, conv_arg);
4440 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4442 mono_mb_patch_branch (mb, pos2);
4446 g_assert_not_reached ();
4454 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4455 MonoMarshalSpec *spec,
4456 int conv_arg, MonoType **conv_arg_type,
4457 MarshalAction action)
4460 MonoMethodBuilder *mb = m->mb;
4463 case MARSHAL_ACTION_CONV_IN: {
4464 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4466 g_assert (t->type == MONO_TYPE_OBJECT);
4467 g_assert (!t->byref);
4469 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4470 mono_mb_emit_ldarg (mb, argnum);
4471 mono_mb_emit_icon (mb, encoding);
4472 mono_mb_emit_icon (mb, t->attrs);
4473 mono_mb_emit_icall (mb, mono_marshal_asany);
4474 mono_mb_emit_stloc (mb, conv_arg);
4478 case MARSHAL_ACTION_PUSH:
4479 mono_mb_emit_ldloc (mb, conv_arg);
4482 case MARSHAL_ACTION_CONV_OUT: {
4483 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4485 mono_mb_emit_ldarg (mb, argnum);
4486 mono_mb_emit_ldloc (mb, conv_arg);
4487 mono_mb_emit_icon (mb, encoding);
4488 mono_mb_emit_icon (mb, t->attrs);
4489 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4494 g_assert_not_reached ();
4501 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4502 MonoMarshalSpec *spec,
4503 int conv_arg, MonoType **conv_arg_type,
4504 MarshalAction action)
4507 MonoMethodBuilder *mb = m->mb;
4508 MonoClass *klass, *date_time_class;
4511 klass = mono_class_from_mono_type (t);
4513 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4516 case MARSHAL_ACTION_CONV_IN:
4517 if (klass == date_time_class) {
4518 /* Convert it to an OLE DATE type */
4519 static MonoMethod *to_oadate;
4522 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4523 g_assert (to_oadate);
4525 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4528 mono_mb_emit_ldarg (mb, argnum);
4529 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4532 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4534 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4536 mono_mb_emit_ldarg_addr (mb, argnum);
4537 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4538 mono_mb_emit_stloc (mb, conv_arg);
4542 mono_mb_patch_branch (mb, pos);
4546 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4547 klass->blittable || klass->enumtype)
4550 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4552 /* store the address of the source into local variable 0 */
4554 mono_mb_emit_ldarg (mb, argnum);
4556 mono_mb_emit_ldarg_addr (mb, argnum);
4558 mono_mb_emit_stloc (mb, 0);
4560 /* allocate space for the native struct and
4561 * store the address into local variable 1 (dest) */
4562 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4563 mono_mb_emit_byte (mb, CEE_PREFIX1);
4564 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4565 mono_mb_emit_stloc (mb, conv_arg);
4568 mono_mb_emit_ldloc (mb, 0);
4569 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4572 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4574 mono_mb_emit_ldloc (mb, conv_arg);
4575 mono_mb_emit_stloc (mb, 1);
4577 /* emit valuetype conversion code */
4578 emit_struct_conv (mb, klass, FALSE);
4582 mono_mb_patch_branch (mb, pos);
4585 case MARSHAL_ACTION_PUSH:
4586 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4588 g_assert (!t->byref);
4590 /* Have to change the signature since the vtype is passed byref */
4591 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4593 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4594 klass->blittable || klass->enumtype)
4595 mono_mb_emit_ldarg_addr (mb, argnum);
4597 mono_mb_emit_ldloc (mb, conv_arg);
4601 if (klass == date_time_class) {
4603 mono_mb_emit_ldloc_addr (mb, conv_arg);
4605 mono_mb_emit_ldloc (mb, conv_arg);
4609 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4610 klass->blittable || klass->enumtype) {
4611 mono_mb_emit_ldarg (mb, argnum);
4614 mono_mb_emit_ldloc (mb, conv_arg);
4616 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4617 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4621 case MARSHAL_ACTION_CONV_OUT:
4622 if (klass == date_time_class) {
4623 /* Convert from an OLE DATE type */
4624 static MonoMethod *from_oadate;
4629 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4631 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4632 g_assert (from_oadate);
4634 mono_mb_emit_ldarg (mb, argnum);
4635 mono_mb_emit_ldloc (mb, conv_arg);
4636 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4637 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4642 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4643 klass->blittable || klass->enumtype)
4647 /* dst = argument */
4648 mono_mb_emit_ldarg (mb, argnum);
4649 mono_mb_emit_stloc (mb, 1);
4651 mono_mb_emit_ldloc (mb, 1);
4652 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4654 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4655 /* src = tmp_locals [i] */
4656 mono_mb_emit_ldloc (mb, conv_arg);
4657 mono_mb_emit_stloc (mb, 0);
4659 /* emit valuetype conversion code */
4660 emit_struct_conv (mb, klass, TRUE);
4664 emit_struct_free (mb, klass, conv_arg);
4667 mono_mb_patch_branch (mb, pos);
4670 case MARSHAL_ACTION_CONV_RESULT:
4671 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4673 mono_mb_emit_stloc (mb, 3);
4677 /* load pointer to returned value type */
4678 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4679 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4680 /* store the address of the source into local variable 0 */
4681 mono_mb_emit_stloc (mb, 0);
4683 mono_mb_emit_ldloc_addr (mb, 3);
4684 mono_mb_emit_stloc (mb, 1);
4686 /* emit valuetype conversion code */
4687 emit_struct_conv (mb, klass, TRUE);
4690 case MARSHAL_ACTION_MANAGED_CONV_IN:
4691 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4692 klass->blittable || klass->enumtype) {
4697 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4699 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4703 mono_mb_emit_ldarg (mb, argnum);
4705 mono_mb_emit_ldarg_addr (mb, argnum);
4706 mono_mb_emit_stloc (mb, 0);
4709 mono_mb_emit_ldloc (mb, 0);
4710 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4713 mono_mb_emit_ldloc_addr (mb, conv_arg);
4714 mono_mb_emit_stloc (mb, 1);
4716 /* emit valuetype conversion code */
4717 emit_struct_conv (mb, klass, TRUE);
4720 mono_mb_patch_branch (mb, pos);
4723 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4724 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4725 klass->blittable || klass->enumtype) {
4729 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4732 /* Check for null */
4733 mono_mb_emit_ldarg (mb, argnum);
4734 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4737 mono_mb_emit_ldloc_addr (mb, conv_arg);
4738 mono_mb_emit_stloc (mb, 0);
4741 mono_mb_emit_ldarg (mb, argnum);
4742 mono_mb_emit_stloc (mb, 1);
4744 /* emit valuetype conversion code */
4745 emit_struct_conv (mb, klass, FALSE);
4747 mono_mb_patch_branch (mb, pos2);
4750 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4751 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4752 klass->blittable || klass->enumtype) {
4753 mono_mb_emit_stloc (mb, 3);
4758 /* load pointer to returned value type */
4759 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4760 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4762 /* store the address of the source into local variable 0 */
4763 mono_mb_emit_stloc (mb, 0);
4764 /* allocate space for the native struct and
4765 * store the address into dst_ptr */
4766 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4767 m->retobj_class = klass;
4768 g_assert (m->retobj_var);
4769 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4770 mono_mb_emit_byte (mb, CEE_CONV_I);
4771 mono_mb_emit_icall (mb, mono_marshal_alloc);
4772 mono_mb_emit_stloc (mb, 1);
4773 mono_mb_emit_ldloc (mb, 1);
4774 mono_mb_emit_stloc (mb, m->retobj_var);
4776 /* emit valuetype conversion code */
4777 emit_struct_conv (mb, klass, FALSE);
4781 g_assert_not_reached ();
4788 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4789 MonoMarshalSpec *spec,
4790 int conv_arg, MonoType **conv_arg_type,
4791 MarshalAction action)
4795 case MARSHAL_ACTION_CONV_IN:
4796 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4798 case MARSHAL_ACTION_MANAGED_CONV_IN:
4799 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4803 MonoMethodBuilder *mb = m->mb;
4804 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4805 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4809 case MARSHAL_ACTION_CONV_IN:
4810 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4811 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4814 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4817 mono_mb_emit_ldarg (mb, argnum);
4818 mono_mb_emit_byte (mb, CEE_LDIND_I);
4820 mono_mb_emit_ldarg (mb, argnum);
4824 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4825 mono_mb_emit_exception_marshal_directive (mb, msg);
4827 mono_mb_emit_icall (mb, conv_to_icall (conv));
4829 mono_mb_emit_stloc (mb, conv_arg);
4833 case MARSHAL_ACTION_CONV_OUT:
4834 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4836 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4837 mono_mb_emit_exception_marshal_directive (mb, msg);
4841 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4842 static MonoMethod *m;
4845 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4850 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4851 mono_mb_emit_exception_marshal_directive (mb, msg);
4856 * Have to allocate a new string with the same length as the original, and
4857 * copy the contents of the buffer pointed to by CONV_ARG into it.
4859 g_assert (t->byref);
4860 mono_mb_emit_ldarg (mb, argnum);
4861 mono_mb_emit_ldloc (mb, conv_arg);
4862 mono_mb_emit_ldarg (mb, argnum);
4863 mono_mb_emit_byte (mb, CEE_LDIND_I);
4864 mono_mb_emit_managed_call (mb, m, NULL);
4865 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4866 mono_mb_emit_byte (mb, CEE_STIND_REF);
4867 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4868 mono_mb_emit_ldarg (mb, argnum);
4869 mono_mb_emit_ldloc (mb, conv_arg);
4870 mono_mb_emit_icall (mb, conv_to_icall (conv));
4871 mono_mb_emit_byte (mb, CEE_STIND_REF);
4876 mono_mb_emit_ldloc (mb, conv_arg);
4877 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4878 mono_mb_emit_icall (mb, mono_free_bstr);
4880 mono_mb_emit_icall (mb, mono_marshal_free);
4884 case MARSHAL_ACTION_PUSH:
4885 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4886 mono_mb_emit_ldloc_addr (mb, conv_arg);
4888 mono_mb_emit_ldloc (mb, conv_arg);
4891 case MARSHAL_ACTION_CONV_RESULT:
4892 mono_mb_emit_stloc (mb, 0);
4894 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4896 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4897 mono_mb_emit_exception_marshal_directive (mb, msg);
4901 mono_mb_emit_ldloc (mb, 0);
4902 mono_mb_emit_icall (mb, conv_to_icall (conv));
4903 mono_mb_emit_stloc (mb, 3);
4905 /* free the string */
4906 mono_mb_emit_ldloc (mb, 0);
4907 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4908 mono_mb_emit_icall (mb, mono_free_bstr);
4910 mono_mb_emit_icall (mb, mono_marshal_free);
4913 case MARSHAL_ACTION_MANAGED_CONV_IN:
4914 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4916 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4919 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4923 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4925 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4926 mono_mb_emit_exception_marshal_directive (mb, msg);
4930 mono_mb_emit_ldarg (mb, argnum);
4932 mono_mb_emit_byte (mb, CEE_LDIND_I);
4933 mono_mb_emit_icall (mb, conv_to_icall (conv));
4934 mono_mb_emit_stloc (mb, conv_arg);
4937 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4940 mono_mb_emit_ldarg (mb, argnum);
4941 mono_mb_emit_ldloc (mb, conv_arg);
4942 mono_mb_emit_icall (mb, conv_to_icall (conv));
4943 mono_mb_emit_byte (mb, CEE_STIND_I);
4948 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4949 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4950 /* We need to make a copy so the caller is able to free it */
4951 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4953 mono_mb_emit_icall (mb, conv_to_icall (conv));
4954 mono_mb_emit_stloc (mb, 3);
4958 g_assert_not_reached ();
4966 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4967 MonoMarshalSpec *spec, int conv_arg,
4968 MonoType **conv_arg_type, MarshalAction action)
4971 if (action == MARSHAL_ACTION_CONV_IN)
4972 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4974 MonoMethodBuilder *mb = m->mb;
4977 case MARSHAL_ACTION_CONV_IN: {
4978 MonoType *intptr_type;
4979 int dar_release_slot, pos;
4981 intptr_type = &mono_defaults.int_class->byval_arg;
4982 conv_arg = mono_mb_add_local (mb, intptr_type);
4983 *conv_arg_type = intptr_type;
4985 if (!sh_dangerous_add_ref)
4986 init_safe_handle ();
4988 mono_mb_emit_ldarg (mb, argnum);
4989 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4990 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4992 mono_mb_patch_branch (mb, pos);
4995 * My tests in show that ref SafeHandles are not really
4996 * passed as ref objects. Instead a NULL is passed as the
4999 mono_mb_emit_icon (mb, 0);
5000 mono_mb_emit_stloc (mb, conv_arg);
5004 /* Create local to hold the ref parameter to DangerousAddRef */
5005 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5007 /* set release = false; */
5008 mono_mb_emit_icon (mb, 0);
5009 mono_mb_emit_stloc (mb, dar_release_slot);
5011 /* safehandle.DangerousAddRef (ref release) */
5012 mono_mb_emit_ldarg (mb, argnum);
5013 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5014 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5016 /* Pull the handle field from SafeHandle */
5017 mono_mb_emit_ldarg (mb, argnum);
5018 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5019 mono_mb_emit_byte (mb, CEE_LDIND_I);
5020 mono_mb_emit_stloc (mb, conv_arg);
5025 case MARSHAL_ACTION_PUSH:
5027 mono_mb_emit_ldloc_addr (mb, conv_arg);
5029 mono_mb_emit_ldloc (mb, conv_arg);
5032 case MARSHAL_ACTION_CONV_OUT: {
5033 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5034 int dar_release_slot = conv_arg + 1;
5037 if (!sh_dangerous_release)
5038 init_safe_handle ();
5044 * My tests indicate that ref SafeHandles parameters are not actually
5045 * passed by ref, but instead a new Handle is created regardless of
5046 * whether a change happens in the unmanaged side.
5048 * Also, the Handle is created before calling into unmanaged code,
5049 * but we do not support that mechanism (getting to the original
5050 * handle) and it makes no difference where we create this
5052 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5054 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5057 /* refval = new SafeHandleDerived ()*/
5058 mono_mb_emit_ldarg (mb, argnum);
5059 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5060 mono_mb_emit_byte (mb, CEE_STIND_REF);
5062 /* refval.handle = returned_handle */
5063 mono_mb_emit_ldarg (mb, argnum);
5064 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5065 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5066 mono_mb_emit_ldloc (mb, conv_arg);
5067 mono_mb_emit_byte (mb, CEE_STIND_I);
5069 mono_mb_emit_ldloc (mb, dar_release_slot);
5070 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5071 mono_mb_emit_ldarg (mb, argnum);
5072 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5073 mono_mb_patch_branch (mb, label_next);
5078 case MARSHAL_ACTION_CONV_RESULT: {
5079 MonoMethod *ctor = NULL;
5080 int intptr_handle_slot;
5082 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5083 mono_mb_emit_byte (mb, CEE_POP);
5084 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5088 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5090 mono_mb_emit_byte (mb, CEE_POP);
5091 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5094 /* Store the IntPtr results into a local */
5095 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5096 mono_mb_emit_stloc (mb, intptr_handle_slot);
5098 /* Create return value */
5099 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5100 mono_mb_emit_stloc (mb, 3);
5102 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5103 mono_mb_emit_ldloc (mb, 3);
5104 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5105 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5106 mono_mb_emit_byte (mb, CEE_STIND_I);
5110 case MARSHAL_ACTION_MANAGED_CONV_IN:
5111 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5114 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5115 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5118 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5119 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5122 printf ("Unhandled case for MarshalAction: %d\n", action);
5130 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5131 MonoMarshalSpec *spec, int conv_arg,
5132 MonoType **conv_arg_type, MarshalAction action)
5135 if (action == MARSHAL_ACTION_CONV_IN)
5136 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5138 MonoMethodBuilder *mb = m->mb;
5141 case MARSHAL_ACTION_CONV_IN: {
5142 MonoType *intptr_type;
5144 intptr_type = &mono_defaults.int_class->byval_arg;
5145 conv_arg = mono_mb_add_local (mb, intptr_type);
5146 *conv_arg_type = intptr_type;
5149 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5150 mono_mb_emit_exception_marshal_directive (mb, msg);
5153 mono_mb_emit_ldarg_addr (mb, argnum);
5154 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5155 mono_mb_emit_byte (mb, CEE_ADD);
5156 mono_mb_emit_byte (mb, CEE_LDIND_I);
5157 mono_mb_emit_stloc (mb, conv_arg);
5161 case MARSHAL_ACTION_PUSH:
5162 mono_mb_emit_ldloc (mb, conv_arg);
5165 case MARSHAL_ACTION_CONV_OUT: {
5166 /* no resource release required */
5170 case MARSHAL_ACTION_CONV_RESULT: {
5171 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5172 mono_mb_emit_exception_marshal_directive (mb, msg);
5176 case MARSHAL_ACTION_MANAGED_CONV_IN:
5177 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5180 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5181 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5184 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5185 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5188 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5196 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5197 MonoMarshalSpec *spec,
5198 int conv_arg, MonoType **conv_arg_type,
5199 MarshalAction action)
5202 if (action == MARSHAL_ACTION_CONV_IN)
5203 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5205 MonoMethodBuilder *mb = m->mb;
5206 MonoClass *klass = mono_class_from_mono_type (t);
5210 case MARSHAL_ACTION_CONV_IN:
5211 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5212 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5214 m->orig_conv_args [argnum] = 0;
5216 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5217 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5218 mono_mb_emit_exception_marshal_directive (mb, msg);
5222 if (klass->delegate) {
5224 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5225 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5226 mono_mb_emit_exception_marshal_directive (mb, msg);
5228 mono_mb_emit_byte (mb, CEE_LDNULL);
5229 mono_mb_emit_stloc (mb, conv_arg);
5231 mono_mb_emit_ldarg (mb, argnum);
5232 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5233 mono_mb_emit_stloc (mb, conv_arg);
5235 } else if (klass == mono_defaults.stringbuilder_class) {
5236 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5237 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5241 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5242 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5243 mono_mb_emit_exception_marshal_directive (mb, msg);
5249 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5253 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5254 mono_mb_emit_exception_marshal_directive (mb, msg);
5258 mono_mb_emit_ldarg (mb, argnum);
5260 mono_mb_emit_byte (mb, CEE_LDIND_I);
5262 mono_mb_emit_icall (mb, conv_to_icall (conv));
5263 mono_mb_emit_stloc (mb, conv_arg);
5264 } else if (klass->blittable) {
5265 mono_mb_emit_byte (mb, CEE_LDNULL);
5266 mono_mb_emit_stloc (mb, conv_arg);
5268 mono_mb_emit_ldarg (mb, argnum);
5269 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5271 mono_mb_emit_ldarg (mb, argnum);
5272 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5273 mono_mb_emit_stloc (mb, conv_arg);
5275 mono_mb_patch_branch (mb, pos);
5278 mono_mb_emit_byte (mb, CEE_LDNULL);
5279 mono_mb_emit_stloc (mb, conv_arg);
5282 /* we dont need any conversions for out parameters */
5283 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_byte (mb, CEE_LDIND_I);
5290 mono_mb_emit_ldarg (mb, argnum);
5291 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5292 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5295 /* store the address of the source into local variable 0 */
5296 mono_mb_emit_stloc (mb, 0);
5297 mono_mb_emit_ldloc (mb, 0);
5298 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5300 /* allocate space for the native struct and store the address */
5301 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5302 mono_mb_emit_byte (mb, CEE_PREFIX1);
5303 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5304 mono_mb_emit_stloc (mb, conv_arg);
5307 /* Need to store the original buffer so we can free it later */
5308 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5309 mono_mb_emit_ldloc (mb, conv_arg);
5310 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5313 /* set the src_ptr */
5314 mono_mb_emit_ldloc (mb, 0);
5315 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5316 mono_mb_emit_stloc (mb, 0);
5319 mono_mb_emit_ldloc (mb, conv_arg);
5320 mono_mb_emit_stloc (mb, 1);
5322 /* emit valuetype conversion code */
5323 emit_struct_conv (mb, klass, FALSE);
5325 mono_mb_patch_branch (mb, pos);
5329 case MARSHAL_ACTION_CONV_OUT:
5330 if (klass == mono_defaults.stringbuilder_class) {
5332 MonoMarshalNative encoding;
5333 MonoMarshalConv conv;
5335 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5336 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5338 g_assert (encoding != -1);
5341 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5345 mono_mb_emit_ldarg (mb, argnum);
5346 mono_mb_emit_ldloc (mb, conv_arg);
5349 case MONO_NATIVE_LPWSTR:
5350 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5352 case MONO_NATIVE_LPSTR:
5353 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5356 g_assert_not_reached ();
5359 mono_mb_emit_byte (mb, CEE_STIND_REF);
5361 mono_mb_emit_ldarg (mb, argnum);
5362 mono_mb_emit_ldloc (mb, conv_arg);
5364 mono_mb_emit_icall (mb, conv_to_icall (conv));
5368 mono_mb_emit_ldloc (mb, conv_arg);
5369 mono_mb_emit_icall (mb, mono_marshal_free);
5374 if (klass->delegate) {
5376 mono_mb_emit_ldarg (mb, argnum);
5377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5378 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5379 mono_mb_emit_ldloc (mb, conv_arg);
5380 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5381 mono_mb_emit_byte (mb, CEE_STIND_REF);
5386 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5387 /* allocate a new object */
5388 mono_mb_emit_ldarg (mb, argnum);
5389 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5390 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5391 mono_mb_emit_byte (mb, CEE_STIND_REF);
5394 /* dst = *argument */
5395 mono_mb_emit_ldarg (mb, argnum);
5398 mono_mb_emit_byte (mb, CEE_LDIND_I);
5400 mono_mb_emit_stloc (mb, 1);
5402 mono_mb_emit_ldloc (mb, 1);
5403 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5405 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5406 mono_mb_emit_ldloc (mb, 1);
5407 mono_mb_emit_icon (mb, sizeof (MonoObject));
5408 mono_mb_emit_byte (mb, CEE_ADD);
5409 mono_mb_emit_stloc (mb, 1);
5411 /* src = tmp_locals [i] */
5412 mono_mb_emit_ldloc (mb, conv_arg);
5413 mono_mb_emit_stloc (mb, 0);
5415 /* emit valuetype conversion code */
5416 emit_struct_conv (mb, klass, TRUE);
5418 /* Free the structure returned by the native code */
5419 emit_struct_free (mb, klass, conv_arg);
5421 if (m->orig_conv_args [argnum]) {
5423 * If the native function changed the pointer, then free
5424 * the original structure plus the new pointer.
5426 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5427 mono_mb_emit_ldloc (mb, conv_arg);
5428 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5430 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5431 g_assert (m->orig_conv_args [argnum]);
5433 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5436 mono_mb_emit_ldloc (mb, conv_arg);
5437 mono_mb_emit_icall (mb, mono_marshal_free);
5439 mono_mb_patch_branch (mb, pos2);
5443 /* Free the original structure passed to native code */
5444 emit_struct_free (mb, klass, conv_arg);
5446 mono_mb_patch_branch (mb, pos);
5449 case MARSHAL_ACTION_PUSH:
5451 mono_mb_emit_ldloc_addr (mb, conv_arg);
5453 mono_mb_emit_ldloc (mb, conv_arg);
5456 case MARSHAL_ACTION_CONV_RESULT:
5457 if (klass->delegate) {
5458 g_assert (!t->byref);
5459 mono_mb_emit_stloc (mb, 0);
5460 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5461 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5462 mono_mb_emit_ldloc (mb, 0);
5463 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5464 mono_mb_emit_stloc (mb, 3);
5467 mono_mb_emit_stloc (mb, 0);
5469 /* Make a copy since emit_conv modifies local 0 */
5470 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5471 mono_mb_emit_ldloc (mb, 0);
5472 mono_mb_emit_stloc (mb, loc);
5474 mono_mb_emit_byte (mb, CEE_LDNULL);
5475 mono_mb_emit_stloc (mb, 3);
5477 mono_mb_emit_ldloc (mb, 0);
5478 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5480 /* allocate result object */
5482 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5483 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5484 mono_mb_emit_stloc (mb, 3);
5488 mono_mb_emit_ldloc (mb, 3);
5489 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5490 mono_mb_emit_stloc (mb, 1);
5492 /* emit conversion code */
5493 emit_struct_conv (mb, klass, TRUE);
5495 emit_struct_free (mb, klass, loc);
5497 /* Free the pointer allocated by unmanaged code */
5498 mono_mb_emit_ldloc (mb, loc);
5499 mono_mb_emit_icall (mb, mono_marshal_free);
5500 mono_mb_patch_branch (mb, pos);
5504 case MARSHAL_ACTION_MANAGED_CONV_IN:
5505 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5507 if (klass->delegate) {
5508 g_assert (!t->byref);
5509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5510 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5511 mono_mb_emit_ldarg (mb, argnum);
5512 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5513 mono_mb_emit_stloc (mb, conv_arg);
5517 if (klass == mono_defaults.stringbuilder_class) {
5518 MonoMarshalNative encoding;
5520 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5523 g_assert (encoding == MONO_NATIVE_LPSTR);
5525 g_assert (!t->byref);
5526 g_assert (encoding != -1);
5528 mono_mb_emit_ldarg (mb, argnum);
5529 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5530 mono_mb_emit_stloc (mb, conv_arg);
5534 /* The class can not have an automatic layout */
5535 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5536 mono_mb_emit_auto_layout_exception (mb, klass);
5540 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5541 mono_mb_emit_byte (mb, CEE_LDNULL);
5542 mono_mb_emit_stloc (mb, conv_arg);
5547 mono_mb_emit_ldarg (mb, argnum);
5551 /* Check for NULL and raise an exception */
5552 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5554 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5556 mono_mb_patch_branch (mb, pos2);
5557 mono_mb_emit_ldarg (mb, argnum);
5558 mono_mb_emit_byte (mb, CEE_LDIND_I);
5561 mono_mb_emit_stloc (mb, 0);
5563 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5564 mono_mb_emit_stloc (mb, conv_arg);
5566 mono_mb_emit_ldloc (mb, 0);
5567 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5569 /* Create and set dst */
5570 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5571 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5572 mono_mb_emit_stloc (mb, conv_arg);
5573 mono_mb_emit_ldloc (mb, conv_arg);
5574 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5575 mono_mb_emit_stloc (mb, 1);
5577 /* emit valuetype conversion code */
5578 emit_struct_conv (mb, klass, TRUE);
5580 mono_mb_patch_branch (mb, pos);
5583 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5585 /* Check for null */
5586 mono_mb_emit_ldloc (mb, conv_arg);
5587 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5588 mono_mb_emit_ldarg (mb, argnum);
5589 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5590 mono_mb_emit_byte (mb, CEE_STIND_REF);
5591 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5593 mono_mb_patch_branch (mb, pos);
5596 mono_mb_emit_ldloc (mb, conv_arg);
5597 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5598 mono_mb_emit_stloc (mb, 0);
5600 /* Allocate and set dest */
5601 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5602 mono_mb_emit_byte (mb, CEE_CONV_I);
5603 mono_mb_emit_icall (mb, mono_marshal_alloc);
5604 mono_mb_emit_stloc (mb, 1);
5606 /* Update argument pointer */
5607 mono_mb_emit_ldarg (mb, argnum);
5608 mono_mb_emit_ldloc (mb, 1);
5609 mono_mb_emit_byte (mb, CEE_STIND_I);
5611 /* emit valuetype conversion code */
5612 emit_struct_conv (mb, klass, FALSE);
5614 mono_mb_patch_branch (mb, pos2);
5616 /* byval [Out] marshalling */
5618 /* FIXME: Handle null */
5621 mono_mb_emit_ldloc (mb, conv_arg);
5622 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5623 mono_mb_emit_stloc (mb, 0);
5626 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_stloc (mb, 1);
5629 /* emit valuetype conversion code */
5630 emit_struct_conv (mb, klass, FALSE);
5634 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5635 if (klass->delegate) {
5636 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5637 mono_mb_emit_stloc (mb, 3);
5641 /* The class can not have an automatic layout */
5642 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5643 mono_mb_emit_auto_layout_exception (mb, klass);
5647 mono_mb_emit_stloc (mb, 0);
5648 /* Check for null */
5649 mono_mb_emit_ldloc (mb, 0);
5650 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5651 mono_mb_emit_byte (mb, CEE_LDNULL);
5652 mono_mb_emit_stloc (mb, 3);
5653 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5655 mono_mb_patch_branch (mb, pos);
5658 mono_mb_emit_ldloc (mb, 0);
5659 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5660 mono_mb_emit_stloc (mb, 0);
5662 /* Allocate and set dest */
5663 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5664 mono_mb_emit_byte (mb, CEE_CONV_I);
5665 mono_mb_emit_icall (mb, mono_marshal_alloc);
5666 mono_mb_emit_byte (mb, CEE_DUP);
5667 mono_mb_emit_stloc (mb, 1);
5668 mono_mb_emit_stloc (mb, 3);
5670 emit_struct_conv (mb, klass, FALSE);
5672 mono_mb_patch_branch (mb, pos2);
5676 g_assert_not_reached ();
5687 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5688 MonoMarshalSpec *spec,
5689 int conv_arg, MonoType **conv_arg_type,
5690 MarshalAction action)
5692 MonoMethodBuilder *mb = m->mb;
5693 static MonoMethod *get_object_for_native_variant = NULL;
5694 static MonoMethod *get_native_variant_for_object = NULL;
5696 if (!get_object_for_native_variant)
5697 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5698 g_assert (get_object_for_native_variant);
5700 if (!get_native_variant_for_object)
5701 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5702 g_assert (get_native_variant_for_object);
5705 case MARSHAL_ACTION_CONV_IN: {
5706 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5709 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5711 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5713 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5716 mono_mb_emit_ldarg (mb, argnum);
5718 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5719 mono_mb_emit_ldloc_addr (mb, conv_arg);
5720 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5724 case MARSHAL_ACTION_CONV_OUT: {
5725 static MonoMethod *variant_clear = NULL;
5728 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5729 g_assert (variant_clear);
5732 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5733 mono_mb_emit_ldarg (mb, argnum);
5734 mono_mb_emit_ldloc_addr (mb, conv_arg);
5735 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5736 mono_mb_emit_byte (mb, CEE_STIND_REF);
5739 mono_mb_emit_ldloc_addr (mb, conv_arg);
5740 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5744 case MARSHAL_ACTION_PUSH:
5746 mono_mb_emit_ldloc_addr (mb, conv_arg);
5748 mono_mb_emit_ldloc (mb, conv_arg);
5751 case MARSHAL_ACTION_CONV_RESULT: {
5752 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5753 mono_mb_emit_exception_marshal_directive (mb, msg);
5757 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5758 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5761 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5763 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5765 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5769 mono_mb_emit_ldarg (mb, argnum);
5771 mono_mb_emit_ldarg_addr (mb, argnum);
5772 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5773 mono_mb_emit_stloc (mb, conv_arg);
5777 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5778 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5779 mono_mb_emit_ldloc (mb, conv_arg);
5780 mono_mb_emit_ldarg (mb, argnum);
5781 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5786 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5787 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5788 mono_mb_emit_exception_marshal_directive (mb, msg);
5793 g_assert_not_reached ();
5799 #endif /* DISABLE_COM */
5800 #endif /* DISABLE_JIT */
5803 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5805 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5806 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5808 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5810 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5822 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5823 MonoMarshalSpec *spec,
5824 int conv_arg, MonoType **conv_arg_type,
5825 MarshalAction action)
5829 case MARSHAL_ACTION_CONV_IN:
5830 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5832 case MARSHAL_ACTION_MANAGED_CONV_IN:
5833 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5837 MonoMethodBuilder *mb = m->mb;
5838 MonoClass *klass = mono_class_from_mono_type (t);
5839 gboolean need_convert, need_free;
5840 MonoMarshalNative encoding;
5842 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5845 case MARSHAL_ACTION_CONV_IN:
5846 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5847 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5849 if (klass->element_class->blittable) {
5850 mono_mb_emit_ldarg (mb, argnum);
5852 mono_mb_emit_byte (mb, CEE_LDIND_I);
5853 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5854 mono_mb_emit_stloc (mb, conv_arg);
5857 guint32 label1, label2, label3;
5858 int index_var, src_var, dest_ptr, esize;
5859 MonoMarshalConv conv;
5860 gboolean is_string = FALSE;
5862 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5864 eklass = klass->element_class;
5866 if (eklass == mono_defaults.string_class) {
5868 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5870 else if (eklass == mono_defaults.stringbuilder_class) {
5872 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5877 if (is_string && conv == -1) {
5878 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5879 mono_mb_emit_exception_marshal_directive (mb, msg);
5883 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5884 mono_mb_emit_ldarg (mb, argnum);
5886 mono_mb_emit_byte (mb, CEE_LDIND_I);
5887 mono_mb_emit_stloc (mb, src_var);
5890 mono_mb_emit_ldloc (mb, src_var);
5891 mono_mb_emit_stloc (mb, conv_arg);
5892 mono_mb_emit_ldloc (mb, src_var);
5893 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5896 esize = sizeof (gpointer);
5897 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5898 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5900 esize = mono_class_native_size (eklass, NULL);
5902 /* allocate space for the native struct and store the address */
5903 mono_mb_emit_icon (mb, esize);
5904 mono_mb_emit_ldloc (mb, src_var);
5905 mono_mb_emit_byte (mb, CEE_LDLEN);
5907 if (eklass == mono_defaults.string_class) {
5908 /* Make the array bigger for the terminating null */
5909 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5910 mono_mb_emit_byte (mb, CEE_ADD);
5912 mono_mb_emit_byte (mb, CEE_MUL);
5913 mono_mb_emit_byte (mb, CEE_PREFIX1);
5914 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5915 mono_mb_emit_stloc (mb, conv_arg);
5917 mono_mb_emit_ldloc (mb, conv_arg);
5918 mono_mb_emit_stloc (mb, dest_ptr);
5920 /* Emit marshalling loop */
5921 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5922 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5923 mono_mb_emit_stloc (mb, index_var);
5924 label2 = mono_mb_get_label (mb);
5925 mono_mb_emit_ldloc (mb, index_var);
5926 mono_mb_emit_ldloc (mb, src_var);
5927 mono_mb_emit_byte (mb, CEE_LDLEN);
5928 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5930 /* Emit marshalling code */
5933 mono_mb_emit_ldloc (mb, dest_ptr);
5934 mono_mb_emit_ldloc (mb, src_var);
5935 mono_mb_emit_ldloc (mb, index_var);
5936 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5937 mono_mb_emit_icall (mb, conv_to_icall (conv));
5938 mono_mb_emit_byte (mb, CEE_STIND_I);
5940 /* set the src_ptr */
5941 mono_mb_emit_ldloc (mb, src_var);
5942 mono_mb_emit_ldloc (mb, index_var);
5943 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5944 mono_mb_emit_stloc (mb, 0);
5947 mono_mb_emit_ldloc (mb, dest_ptr);
5948 mono_mb_emit_stloc (mb, 1);
5950 /* emit valuetype conversion code */
5951 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5954 mono_mb_emit_add_to_local (mb, index_var, 1);
5955 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5957 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5959 mono_mb_patch_branch (mb, label3);
5961 if (eklass == mono_defaults.string_class) {
5962 /* Null terminate */
5963 mono_mb_emit_ldloc (mb, dest_ptr);
5964 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5965 mono_mb_emit_byte (mb, CEE_STIND_REF);
5968 mono_mb_patch_branch (mb, label1);
5973 case MARSHAL_ACTION_CONV_OUT:
5974 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5975 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);
5976 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5979 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5980 int param_num = spec->data.array_data.param_num;
5981 MonoType *param_type;
5983 param_type = m->sig->params [param_num];
5985 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
5986 char *msg = g_strdup ("Not implemented.");
5987 mono_mb_emit_exception_marshal_directive (mb, msg);
5991 mono_mb_emit_ldarg (mb, argnum);
5993 /* Create the managed array */
5994 mono_mb_emit_ldarg (mb, param_num);
5995 if (m->sig->params [param_num]->byref)
5996 // FIXME: Support other types
5997 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5998 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
5999 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6000 /* Store into argument */
6001 mono_mb_emit_byte (mb, CEE_STIND_I);
6004 if (need_convert || need_free) {
6005 /* FIXME: Optimize blittable case */
6007 guint32 label1, label2, label3;
6008 int index_var, src_ptr, loc, esize;
6010 eklass = klass->element_class;
6011 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6012 esize = sizeof (gpointer);
6013 else if (eklass == mono_defaults.char_class)
6014 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6016 esize = mono_class_native_size (eklass, NULL);
6017 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6018 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6021 mono_mb_emit_ldarg (mb, argnum);
6023 mono_mb_emit_byte (mb, CEE_LDIND_I);
6024 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6026 mono_mb_emit_ldloc (mb, conv_arg);
6027 mono_mb_emit_stloc (mb, src_ptr);
6029 /* Emit marshalling loop */
6030 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6031 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6032 mono_mb_emit_stloc (mb, index_var);
6033 label2 = mono_mb_get_label (mb);
6034 mono_mb_emit_ldloc (mb, index_var);
6035 mono_mb_emit_ldarg (mb, argnum);
6037 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6038 mono_mb_emit_byte (mb, CEE_LDLEN);
6039 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6041 /* Emit marshalling code */
6043 if (eklass == mono_defaults.stringbuilder_class) {
6044 gboolean need_free2;
6045 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6047 g_assert (conv != -1);
6050 mono_mb_emit_ldarg (mb, argnum);
6052 mono_mb_emit_byte (mb, CEE_LDIND_I);
6053 mono_mb_emit_ldloc (mb, index_var);
6054 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6057 mono_mb_emit_ldloc (mb, src_ptr);
6058 mono_mb_emit_byte (mb, CEE_LDIND_I);
6060 mono_mb_emit_icall (mb, conv_to_icall (conv));
6064 mono_mb_emit_ldloc (mb, src_ptr);
6065 mono_mb_emit_byte (mb, CEE_LDIND_I);
6067 mono_mb_emit_icall (mb, mono_marshal_free);
6070 else if (eklass == mono_defaults.string_class) {
6073 mono_mb_emit_ldloc (mb, src_ptr);
6074 mono_mb_emit_byte (mb, CEE_LDIND_I);
6076 mono_mb_emit_icall (mb, mono_marshal_free);
6081 /* set the src_ptr */
6082 mono_mb_emit_ldloc (mb, src_ptr);
6083 mono_mb_emit_stloc (mb, 0);
6086 mono_mb_emit_ldarg (mb, argnum);
6088 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6089 mono_mb_emit_ldloc (mb, index_var);
6090 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6091 mono_mb_emit_stloc (mb, 1);
6093 /* emit valuetype conversion code */
6094 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6098 mono_mb_emit_ldloc (mb, src_ptr);
6099 mono_mb_emit_stloc (mb, loc);
6100 mono_mb_emit_ldloc (mb, loc);
6102 emit_struct_free (mb, eklass, loc);
6106 mono_mb_emit_add_to_local (mb, index_var, 1);
6107 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6109 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6111 mono_mb_patch_branch (mb, label1);
6112 mono_mb_patch_branch (mb, label3);
6115 if (klass->element_class->blittable) {
6116 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6118 mono_mb_emit_ldarg (mb, argnum);
6120 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6121 mono_mb_emit_ldloc (mb, conv_arg);
6122 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6127 case MARSHAL_ACTION_PUSH:
6129 mono_mb_emit_ldloc_addr (mb, conv_arg);
6131 mono_mb_emit_ldloc (mb, conv_arg);
6134 case MARSHAL_ACTION_CONV_RESULT:
6135 /* fixme: we need conversions here */
6136 mono_mb_emit_stloc (mb, 3);
6139 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6141 guint32 label1, label2, label3;
6142 int index_var, src_ptr, esize, param_num, num_elem;
6143 MonoMarshalConv conv;
6144 gboolean is_string = FALSE;
6146 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6147 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6150 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6151 mono_mb_emit_exception_marshal_directive (mb, msg);
6155 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6156 mono_mb_emit_exception_marshal_directive (mb, msg);
6159 if (spec->native != MONO_NATIVE_LPARRAY) {
6160 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6161 mono_mb_emit_exception_marshal_directive (mb, msg);
6165 /* FIXME: t is from the method which is wrapped, not the delegate type */
6166 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6168 param_num = spec->data.array_data.param_num;
6169 num_elem = spec->data.array_data.num_elem;
6170 if (spec->data.array_data.elem_mult == 0)
6171 /* param_num is not specified */
6174 if (param_num == -1) {
6175 if (num_elem <= 0) {
6176 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6177 mono_mb_emit_exception_marshal_directive (mb, msg);
6182 /* FIXME: Optimize blittable case */
6184 eklass = klass->element_class;
6185 if (eklass == mono_defaults.string_class) {
6187 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6189 else if (eklass == mono_defaults.stringbuilder_class) {
6191 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6196 mono_marshal_load_type_info (eklass);
6199 esize = sizeof (gpointer);
6201 esize = mono_class_native_size (eklass, NULL);
6202 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6204 mono_mb_emit_byte (mb, CEE_LDNULL);
6205 mono_mb_emit_stloc (mb, conv_arg);
6207 /* Check param index */
6208 if (param_num != -1) {
6209 if (param_num >= m->sig->param_count) {
6210 char *msg = g_strdup ("Array size control parameter index is out of range.");
6211 mono_mb_emit_exception_marshal_directive (mb, msg);
6214 switch (m->sig->params [param_num]->type) {
6227 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6228 mono_mb_emit_exception_marshal_directive (mb, msg);
6235 mono_mb_emit_ldarg (mb, argnum);
6236 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6238 mono_mb_emit_ldarg (mb, argnum);
6239 mono_mb_emit_stloc (mb, src_ptr);
6241 /* Create managed array */
6243 * The LPArray marshalling spec says that sometimes param_num starts
6244 * from 1, sometimes it starts from 0. But MS seems to allways start
6248 if (param_num == -1) {
6249 mono_mb_emit_icon (mb, num_elem);
6251 mono_mb_emit_ldarg (mb, param_num);
6253 mono_mb_emit_icon (mb, num_elem);
6254 mono_mb_emit_byte (mb, CEE_ADD);
6256 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6259 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6260 mono_mb_emit_stloc (mb, conv_arg);
6262 if (eklass->blittable) {
6263 mono_mb_emit_ldloc (mb, conv_arg);
6264 mono_mb_emit_byte (mb, CEE_CONV_I);
6265 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6266 mono_mb_emit_byte (mb, CEE_ADD);
6267 mono_mb_emit_ldarg (mb, argnum);
6268 mono_mb_emit_ldloc (mb, conv_arg);
6269 mono_mb_emit_byte (mb, CEE_LDLEN);
6270 mono_mb_emit_icon (mb, esize);
6271 mono_mb_emit_byte (mb, CEE_MUL);
6272 mono_mb_emit_byte (mb, CEE_PREFIX1);
6273 mono_mb_emit_byte (mb, CEE_CPBLK);
6277 /* Emit marshalling loop */
6278 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6279 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6280 mono_mb_emit_stloc (mb, index_var);
6281 label2 = mono_mb_get_label (mb);
6282 mono_mb_emit_ldloc (mb, index_var);
6283 mono_mb_emit_ldloc (mb, conv_arg);
6284 mono_mb_emit_byte (mb, CEE_LDLEN);
6285 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6287 /* Emit marshalling code */
6289 g_assert (conv != -1);
6291 mono_mb_emit_ldloc (mb, conv_arg);
6292 mono_mb_emit_ldloc (mb, index_var);
6294 mono_mb_emit_ldloc (mb, src_ptr);
6295 mono_mb_emit_byte (mb, CEE_LDIND_I);
6297 mono_mb_emit_icall (mb, conv_to_icall (conv));
6298 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6301 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6302 mono_mb_emit_exception_marshal_directive (mb, msg);
6306 mono_mb_emit_add_to_local (mb, index_var, 1);
6307 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6309 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6311 mono_mb_patch_branch (mb, label1);
6312 mono_mb_patch_branch (mb, label3);
6316 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6318 guint32 label1, label2, label3;
6319 int index_var, dest_ptr, esize, param_num, num_elem;
6320 MonoMarshalConv conv;
6321 gboolean is_string = FALSE;
6324 /* Already handled in CONV_IN */
6327 /* These are already checked in CONV_IN */
6328 g_assert (!t->byref);
6329 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6330 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6332 param_num = spec->data.array_data.param_num;
6333 num_elem = spec->data.array_data.num_elem;
6335 if (spec->data.array_data.elem_mult == 0)
6336 /* param_num is not specified */
6339 if (param_num == -1) {
6340 if (num_elem <= 0) {
6341 g_assert_not_reached ();
6345 /* FIXME: Optimize blittable case */
6347 eklass = klass->element_class;
6348 if (eklass == mono_defaults.string_class) {
6350 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6352 else if (eklass == mono_defaults.stringbuilder_class) {
6354 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6359 mono_marshal_load_type_info (eklass);
6362 esize = sizeof (gpointer);
6364 esize = mono_class_native_size (eklass, NULL);
6366 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6369 mono_mb_emit_ldloc (mb, conv_arg);
6370 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6372 mono_mb_emit_ldarg (mb, argnum);
6373 mono_mb_emit_stloc (mb, dest_ptr);
6375 if (eklass->blittable) {
6377 mono_mb_emit_ldarg (mb, argnum);
6379 mono_mb_emit_ldloc (mb, conv_arg);
6380 mono_mb_emit_byte (mb, CEE_CONV_I);
6381 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6382 mono_mb_emit_byte (mb, CEE_ADD);
6384 mono_mb_emit_ldloc (mb, conv_arg);
6385 mono_mb_emit_byte (mb, CEE_LDLEN);
6386 mono_mb_emit_icon (mb, esize);
6387 mono_mb_emit_byte (mb, CEE_MUL);
6388 mono_mb_emit_byte (mb, CEE_PREFIX1);
6389 mono_mb_emit_byte (mb, CEE_CPBLK);
6393 /* Emit marshalling loop */
6394 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6395 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6396 mono_mb_emit_stloc (mb, index_var);
6397 label2 = mono_mb_get_label (mb);
6398 mono_mb_emit_ldloc (mb, index_var);
6399 mono_mb_emit_ldloc (mb, conv_arg);
6400 mono_mb_emit_byte (mb, CEE_LDLEN);
6401 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6403 /* Emit marshalling code */
6405 g_assert (conv != -1);
6408 mono_mb_emit_ldloc (mb, dest_ptr);
6411 mono_mb_emit_ldloc (mb, conv_arg);
6412 mono_mb_emit_ldloc (mb, index_var);
6414 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6416 mono_mb_emit_icall (mb, conv_to_icall (conv));
6417 mono_mb_emit_byte (mb, CEE_STIND_I);
6420 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6421 mono_mb_emit_exception_marshal_directive (mb, msg);
6425 mono_mb_emit_add_to_local (mb, index_var, 1);
6426 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6428 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6430 mono_mb_patch_branch (mb, label1);
6431 mono_mb_patch_branch (mb, label3);
6435 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6437 guint32 label1, label2, label3;
6438 int index_var, src, dest, esize;
6439 MonoMarshalConv conv = -1;
6440 gboolean is_string = FALSE;
6442 g_assert (!t->byref);
6444 eklass = klass->element_class;
6446 mono_marshal_load_type_info (eklass);
6448 if (eklass == mono_defaults.string_class) {
6450 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6453 g_assert_not_reached ();
6457 esize = sizeof (gpointer);
6458 else if (eklass == mono_defaults.char_class)
6459 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6461 esize = mono_class_native_size (eklass, NULL);
6463 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6464 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6466 mono_mb_emit_stloc (mb, src);
6467 mono_mb_emit_ldloc (mb, src);
6468 mono_mb_emit_stloc (mb, 3);
6470 /* Check for null */
6471 mono_mb_emit_ldloc (mb, src);
6472 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6474 /* Allocate native array */
6475 mono_mb_emit_icon (mb, esize);
6476 mono_mb_emit_ldloc (mb, src);
6477 mono_mb_emit_byte (mb, CEE_LDLEN);
6479 if (eklass == mono_defaults.string_class) {
6480 /* Make the array bigger for the terminating null */
6481 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6482 mono_mb_emit_byte (mb, CEE_ADD);
6484 mono_mb_emit_byte (mb, CEE_MUL);
6485 mono_mb_emit_icall (mb, mono_marshal_alloc);
6486 mono_mb_emit_stloc (mb, dest);
6487 mono_mb_emit_ldloc (mb, dest);
6488 mono_mb_emit_stloc (mb, 3);
6490 /* Emit marshalling loop */
6491 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6492 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6493 mono_mb_emit_stloc (mb, index_var);
6494 label2 = mono_mb_get_label (mb);
6495 mono_mb_emit_ldloc (mb, index_var);
6496 mono_mb_emit_ldloc (mb, src);
6497 mono_mb_emit_byte (mb, CEE_LDLEN);
6498 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6500 /* Emit marshalling code */
6502 g_assert (conv != -1);
6505 mono_mb_emit_ldloc (mb, dest);
6508 mono_mb_emit_ldloc (mb, src);
6509 mono_mb_emit_ldloc (mb, index_var);
6511 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6513 mono_mb_emit_icall (mb, conv_to_icall (conv));
6514 mono_mb_emit_byte (mb, CEE_STIND_I);
6517 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6518 mono_mb_emit_exception_marshal_directive (mb, msg);
6522 mono_mb_emit_add_to_local (mb, index_var, 1);
6523 mono_mb_emit_add_to_local (mb, dest, esize);
6525 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6527 mono_mb_patch_branch (mb, label3);
6528 mono_mb_patch_branch (mb, label1);
6532 g_assert_not_reached ();
6539 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6542 return &mono_defaults.int32_class->byval_arg;
6544 switch (spec->native) {
6545 case MONO_NATIVE_I1:
6546 case MONO_NATIVE_U1:
6547 return &mono_defaults.byte_class->byval_arg;
6548 case MONO_NATIVE_VARIANTBOOL:
6549 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6550 return &mono_defaults.int16_class->byval_arg;
6551 case MONO_NATIVE_BOOLEAN:
6552 return &mono_defaults.int32_class->byval_arg;
6554 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6555 return &mono_defaults.int32_class->byval_arg;
6561 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6563 MonoClass* conv_arg_class = mono_defaults.int32_class;
6565 switch (spec->native) {
6566 case MONO_NATIVE_I1:
6567 case MONO_NATIVE_U1:
6568 conv_arg_class = mono_defaults.byte_class;
6569 if (ldop) *ldop = CEE_LDIND_I1;
6571 case MONO_NATIVE_VARIANTBOOL:
6572 conv_arg_class = mono_defaults.int16_class;
6573 if (ldop) *ldop = CEE_LDIND_I2;
6575 case MONO_NATIVE_BOOLEAN:
6578 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6581 return conv_arg_class;
6585 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6586 MonoMarshalSpec *spec,
6587 int conv_arg, MonoType **conv_arg_type,
6588 MarshalAction action)
6592 case MARSHAL_ACTION_CONV_IN:
6594 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6596 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6599 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6600 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6602 *conv_arg_type = &conv_arg_class->this_arg;
6604 *conv_arg_type = &conv_arg_class->byval_arg;
6610 MonoMethodBuilder *mb = m->mb;
6613 case MARSHAL_ACTION_CONV_IN: {
6614 MonoType *local_type;
6616 guint8 ldc_op = CEE_LDC_I4_1;
6618 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6620 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6622 *conv_arg_type = local_type;
6623 conv_arg = mono_mb_add_local (mb, local_type);
6625 mono_mb_emit_ldarg (mb, argnum);
6627 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6628 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6629 mono_mb_emit_byte (mb, ldc_op);
6630 mono_mb_emit_stloc (mb, conv_arg);
6631 mono_mb_patch_branch (mb, label_false);
6636 case MARSHAL_ACTION_CONV_OUT:
6638 int label_false, label_end;
6642 mono_mb_emit_ldarg (mb, argnum);
6643 mono_mb_emit_ldloc (mb, conv_arg);
6645 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6646 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6648 label_end = mono_mb_emit_branch (mb, CEE_BR);
6649 mono_mb_patch_branch (mb, label_false);
6650 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6651 mono_mb_patch_branch (mb, label_end);
6653 mono_mb_emit_byte (mb, CEE_STIND_I1);
6657 case MARSHAL_ACTION_PUSH:
6659 mono_mb_emit_ldloc_addr (mb, conv_arg);
6661 mono_mb_emit_ldloc (mb, conv_arg);
6663 mono_mb_emit_ldarg (mb, argnum);
6666 case MARSHAL_ACTION_CONV_RESULT:
6667 /* maybe we need to make sure that it fits within 8 bits */
6668 mono_mb_emit_stloc (mb, 3);
6671 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6672 MonoClass* conv_arg_class = mono_defaults.int32_class;
6673 guint8 ldop = CEE_LDIND_I4;
6674 int label_null, label_false;
6676 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6677 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6680 *conv_arg_type = &conv_arg_class->this_arg;
6682 *conv_arg_type = &conv_arg_class->byval_arg;
6685 mono_mb_emit_ldarg (mb, argnum);
6689 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6690 mono_mb_emit_ldarg (mb, argnum);
6691 mono_mb_emit_byte (mb, ldop);
6695 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6696 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6697 mono_mb_emit_stloc (mb, conv_arg);
6698 mono_mb_patch_branch (mb, label_false);
6701 mono_mb_patch_branch (mb, label_null);
6705 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6706 guint8 stop = CEE_STIND_I4;
6707 guint8 ldc_op = CEE_LDC_I4_1;
6708 int label_null,label_false, label_end;;
6713 switch (spec->native) {
6714 case MONO_NATIVE_I1:
6715 case MONO_NATIVE_U1:
6716 stop = CEE_STIND_I1;
6718 case MONO_NATIVE_VARIANTBOOL:
6719 stop = CEE_STIND_I2;
6720 ldc_op = CEE_LDC_I4_M1;
6728 mono_mb_emit_ldarg (mb, argnum);
6729 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6731 mono_mb_emit_ldarg (mb, argnum);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6734 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6735 mono_mb_emit_byte (mb, ldc_op);
6736 label_end = mono_mb_emit_branch (mb, CEE_BR);
6738 mono_mb_patch_branch (mb, label_false);
6739 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6740 mono_mb_patch_branch (mb, label_end);
6742 mono_mb_emit_byte (mb, stop);
6743 mono_mb_patch_branch (mb, label_null);
6748 g_assert_not_reached ();
6755 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6756 MonoMarshalSpec *spec, int conv_arg,
6757 MonoType **conv_arg_type, MarshalAction action)
6760 MonoMethodBuilder *mb = m->mb;
6763 case MARSHAL_ACTION_CONV_IN:
6764 /* MS seems to allow this in some cases, ie. bxc #158 */
6766 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6767 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6768 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6773 case MARSHAL_ACTION_PUSH:
6774 mono_mb_emit_ldarg (mb, argnum);
6777 case MARSHAL_ACTION_CONV_RESULT:
6778 /* no conversions necessary */
6779 mono_mb_emit_stloc (mb, 3);
6790 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6791 MonoMarshalSpec *spec, int conv_arg,
6792 MonoType **conv_arg_type, MarshalAction action)
6795 MonoMethodBuilder *mb = m->mb;
6798 case MARSHAL_ACTION_PUSH:
6799 /* fixme: dont know how to marshal that. We cant simply
6800 * convert it to a one byte UTF8 character, because an
6801 * unicode character may need more that one byte in UTF8 */
6802 mono_mb_emit_ldarg (mb, argnum);
6805 case MARSHAL_ACTION_CONV_RESULT:
6806 /* fixme: we need conversions here */
6807 mono_mb_emit_stloc (mb, 3);
6818 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6819 MonoMarshalSpec *spec, int conv_arg,
6820 MonoType **conv_arg_type, MarshalAction action)
6823 MonoMethodBuilder *mb = m->mb;
6826 case MARSHAL_ACTION_PUSH:
6827 mono_mb_emit_ldarg (mb, argnum);
6830 case MARSHAL_ACTION_CONV_RESULT:
6831 /* no conversions necessary */
6832 mono_mb_emit_stloc (mb, 3);
6843 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6844 MonoMarshalSpec *spec, int conv_arg,
6845 MonoType **conv_arg_type, MarshalAction action)
6847 /* Ensure that we have marshalling info for this param */
6848 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6850 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6851 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6853 if (spec && spec->native == MONO_NATIVE_ASANY)
6854 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6857 case MONO_TYPE_VALUETYPE:
6858 if (t->data.klass == mono_defaults.handleref_class)
6859 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6861 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6862 case MONO_TYPE_STRING:
6863 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6864 case MONO_TYPE_CLASS:
6865 case MONO_TYPE_OBJECT:
6867 if (spec && spec->native == MONO_NATIVE_STRUCT)
6868 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6870 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6871 spec->native == MONO_NATIVE_IDISPATCH ||
6872 spec->native == MONO_NATIVE_INTERFACE))
6873 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6874 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6875 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6876 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6877 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6880 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6881 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6882 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6884 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6885 case MONO_TYPE_ARRAY:
6886 case MONO_TYPE_SZARRAY:
6887 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6888 case MONO_TYPE_BOOLEAN:
6889 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6891 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6892 case MONO_TYPE_CHAR:
6893 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6906 case MONO_TYPE_FNPTR:
6907 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6908 case MONO_TYPE_GENERICINST:
6909 if (mono_type_generic_inst_is_valuetype (t))
6910 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6912 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6920 * mono_marshal_emit_native_wrapper:
6921 * @image: the image to use for looking up custom marshallers
6922 * @sig: The signature of the native function
6923 * @piinfo: Marshalling information
6924 * @mspecs: Marshalling information
6925 * @aot: whenever the created method will be compiled by the AOT compiler
6926 * @method: if non-NULL, the pinvoke method to call
6927 * @check_exceptions: Whenever to check for pending exceptions after the native call
6928 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6930 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6933 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)
6935 EmitMarshalContext m;
6936 MonoMethodSignature *csig;
6938 int i, argnum, *tmp_locals;
6939 int type, param_shift = 0;
6940 static MonoMethodSignature *get_last_error_sig = NULL;
6942 memset (&m, 0, sizeof (m));
6947 /* we copy the signature, so that we can set pinvoke to 0 */
6949 /* The function address is passed as the first argument */
6950 g_assert (!sig->hasthis);
6953 csig = signature_dup (mb->method->klass->image, sig);
6961 /* we allocate local for use with emit_struct_conv() */
6962 /* allocate local 0 (pointer) src_ptr */
6963 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6964 /* allocate local 1 (pointer) dst_ptr */
6965 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6966 /* allocate local 2 (boolean) delete_old */
6967 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6969 /* delete_old = FALSE */
6970 mono_mb_emit_icon (mb, 0);
6971 mono_mb_emit_stloc (mb, 2);
6973 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6974 /* allocate local 3 to store the return value */
6975 mono_mb_add_local (mb, sig->ret);
6978 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6979 /* Return type custom marshaling */
6981 * Since we can't determine the return type of the unmanaged function,
6982 * we assume it returns a pointer, and pass that pointer to
6983 * MarshalNativeToManaged.
6985 csig->ret = &mono_defaults.int_class->byval_arg;
6988 /* we first do all conversions */
6989 tmp_locals = alloca (sizeof (int) * sig->param_count);
6990 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6992 for (i = 0; i < sig->param_count; i ++) {
6993 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6996 /* push all arguments */
6999 mono_mb_emit_byte (mb, CEE_LDARG_0);
7001 for (i = 0; i < sig->param_count; i++) {
7002 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7005 /* call the native method */
7007 mono_mb_emit_byte (mb, CEE_LDARG_0);
7008 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7009 mono_mb_emit_byte (mb, CEE_LDIND_I);
7010 mono_mb_emit_calli (mb, csig);
7011 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7013 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7015 g_assert_not_reached ();
7020 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7021 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7022 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7023 mono_mb_emit_calli (mb, csig);
7025 mono_mb_emit_native_call (mb, csig, func);
7029 /* Set LastError if needed */
7030 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7031 if (!get_last_error_sig) {
7032 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7033 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7034 get_last_error_sig->pinvoke = 1;
7039 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7040 * clobber its value.
7042 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7043 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7045 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7049 /* convert the result */
7050 if (!sig->ret->byref) {
7051 MonoMarshalSpec *spec = mspecs [0];
7052 type = sig->ret->type;
7054 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7055 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7060 case MONO_TYPE_VOID:
7062 case MONO_TYPE_VALUETYPE:
7063 klass = sig->ret->data.klass;
7064 if (klass->enumtype) {
7065 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7068 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7082 case MONO_TYPE_FNPTR:
7083 case MONO_TYPE_STRING:
7084 case MONO_TYPE_CLASS:
7085 case MONO_TYPE_OBJECT:
7086 case MONO_TYPE_BOOLEAN:
7087 case MONO_TYPE_ARRAY:
7088 case MONO_TYPE_SZARRAY:
7089 case MONO_TYPE_CHAR:
7091 case MONO_TYPE_GENERICINST:
7092 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7094 case MONO_TYPE_TYPEDBYREF:
7096 g_warning ("return type 0x%02x unknown", sig->ret->type);
7097 g_assert_not_reached ();
7101 mono_mb_emit_stloc (mb, 3);
7105 * Need to call this after converting the result since MONO_VTADDR needs
7106 * to be adjacent to the call instruction.
7108 if (check_exceptions)
7109 emit_thread_interrupt_checkpoint (mb);
7111 /* we need to convert byref arguments back and free string arrays */
7112 for (i = 0; i < sig->param_count; i++) {
7113 MonoType *t = sig->params [i];
7114 MonoMarshalSpec *spec = mspecs [i + 1];
7116 argnum = i + param_shift;
7118 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7119 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7124 case MONO_TYPE_STRING:
7125 case MONO_TYPE_VALUETYPE:
7126 case MONO_TYPE_CLASS:
7127 case MONO_TYPE_OBJECT:
7128 case MONO_TYPE_SZARRAY:
7129 case MONO_TYPE_BOOLEAN:
7130 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7137 if (!MONO_TYPE_IS_VOID(sig->ret))
7138 mono_mb_emit_ldloc (mb, 3);
7140 mono_mb_emit_byte (mb, CEE_RET);
7142 #endif /* DISABLE_JIT */
7145 G_GNUC_UNUSED static void
7146 code_for (MonoMethod *method) {
7147 MonoMethodHeader *header = mono_method_get_header (method);
7148 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));
7152 * mono_marshal_get_native_wrapper:
7153 * @method: The MonoMethod to wrap.
7154 * @check_exceptions: Whenever to check for pending exceptions
7156 * generates IL code for the pinvoke wrapper (the generated method
7157 * calls the unmanaged code in piinfo->addr)
7158 * The wrapper info for the wrapper is a WrapperInfo structure.
7161 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7163 MonoMethodSignature *sig, *csig;
7164 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7165 MonoMethodBuilder *mb;
7166 MonoMarshalSpec **mspecs;
7169 gboolean pinvoke = FALSE;
7172 const char *exc_class = "MissingMethodException";
7173 const char *exc_arg = NULL;
7176 g_assert (method != NULL);
7177 g_assert (mono_method_signature (method)->pinvoke);
7180 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7182 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7183 if ((res = mono_marshal_find_in_cache (cache, method)))
7186 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7187 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7191 return mono_cominterop_get_native_wrapper (method);
7193 g_assert_not_reached ();
7197 sig = mono_method_signature (method);
7199 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7200 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7203 if (!piinfo->addr) {
7205 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7206 exc_arg = "Method contains unsupported native code";
7208 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7210 piinfo->addr = mono_lookup_internal_call (method);
7214 /* hack - redirect certain string constructors to CreateString */
7215 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7216 g_assert (!pinvoke);
7217 g_assert (method->string_ctor);
7218 g_assert (sig->hasthis);
7220 /* CreateString returns a value */
7221 csig = signature_dup (method->klass->image, sig);
7222 csig->ret = &mono_defaults.string_class->byval_arg;
7226 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7227 if (!strcmp ("CreateString", res->name) &&
7228 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7231 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7232 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7234 /* create a wrapper to preserve .ctor in stack trace */
7235 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7238 mono_mb_emit_byte (mb, CEE_LDARG_0);
7239 for (i = 1; i <= csig->param_count; i++)
7240 mono_mb_emit_ldarg (mb, i);
7241 mono_mb_emit_managed_call (mb, res, NULL);
7242 mono_mb_emit_byte (mb, CEE_RET);
7245 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7246 info->d.string_ctor.method = method;
7248 /* use native_wrapper_cache because internal calls are looked up there */
7249 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7250 csig->param_count + 1, info, NULL);
7257 /* exception will be thrown */
7258 piinfo->addr = NULL;
7259 g_warning ("cannot find CreateString for .ctor");
7262 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7264 mb->method->save_lmf = 1;
7267 * In AOT mode and embedding scenarios, it is possible that the icall is not
7268 * registered in the runtime doing the AOT compilation.
7270 if (!piinfo->addr && !aot) {
7272 mono_mb_emit_exception (mb, exc_class, exc_arg);
7274 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7275 info->d.managed_to_native.method = method;
7277 csig = signature_dup (method->klass->image, sig);
7279 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7280 csig->param_count + 16, info, NULL);
7286 /* internal calls: we simply push all arguments and call the method (no conversions) */
7287 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7289 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7291 csig = signature_dup (method->klass->image, sig);
7293 /* hack - string constructors returns a value */
7294 if (method->string_ctor)
7295 csig->ret = &mono_defaults.string_class->byval_arg;
7302 * Add a null check since public icalls can be called with 'call' which
7303 * does no such check.
7305 mono_mb_emit_byte (mb, CEE_LDARG_0);
7306 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7307 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7308 mono_mb_patch_branch (mb, pos);
7310 mono_mb_emit_byte (mb, CEE_LDARG_0);
7313 for (i = 0; i < sig->param_count; i++)
7314 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7317 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7318 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7319 mono_mb_emit_calli (mb, csig);
7321 g_assert (piinfo->addr);
7322 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7324 if (check_exceptions)
7325 emit_thread_interrupt_checkpoint (mb);
7326 mono_mb_emit_byte (mb, CEE_RET);
7328 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7329 info->d.managed_to_native.method = method;
7331 csig = signature_dup (method->klass->image, csig);
7333 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7342 g_assert (piinfo->addr);
7345 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7346 mono_method_get_marshal_info (method, mspecs);
7348 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7350 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7351 info->d.managed_to_native.method = method;
7353 csig = signature_dup (method->klass->image, sig);
7355 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7360 for (i = sig->param_count; i >= 0; i--)
7362 mono_metadata_free_marshal_spec (mspecs [i]);
7366 /* code_for (res); */
7372 * mono_marshal_get_native_func_wrapper:
7373 * @image: The image to use for memory allocation and for looking up custom marshallers.
7374 * @sig: The signature of the function
7375 * @func: The native function to wrap
7377 * Returns a wrapper method around native functions, similar to the pinvoke
7381 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7382 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7384 MonoMethodSignature *csig;
7386 SignaturePointerPair key, *new_key;
7387 MonoMethodBuilder *mb;
7396 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7397 if ((res = mono_marshal_find_in_cache (cache, &key)))
7400 name = g_strdup_printf ("wrapper_native_%p", func);
7401 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7402 mb->method->save_lmf = 1;
7405 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7408 csig = signature_dup (image, sig);
7411 new_key = g_new (SignaturePointerPair,1);
7412 new_key->sig = csig;
7413 new_key->pointer = func;
7415 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7421 mono_marshal_set_wrapper_info (res, NULL);
7427 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7431 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7433 MonoMethodSignature *sig, *csig;
7434 MonoMethodBuilder *mb;
7439 MonoMethodPInvoke mpiinfo;
7440 MonoMethodPInvoke *piinfo = &mpiinfo;
7441 MonoMarshalSpec **mspecs;
7442 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7443 MonoImage *image = invoke->klass->image;
7446 // FIXME: include UnmanagedFunctionPointerAttribute info
7449 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7451 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7452 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7455 memset (&mpiinfo, 0, sizeof (mpiinfo));
7456 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7459 mono_method_get_marshal_info (invoke, mspecs);
7460 /* Freed below so don't alloc from mempool */
7461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7464 name = g_strdup_printf ("wrapper_aot_native");
7465 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7466 mb->method->save_lmf = 1;
7469 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7473 info->d.managed_to_native.method = invoke;
7475 g_assert (!sig->hasthis);
7476 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7478 res = mono_mb_create_and_cache_full (cache, invoke,
7479 mb, csig, csig->param_count + 16,
7483 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7485 mono_metadata_free_marshal_spec (mspecs [i]);
7493 * mono_marshal_emit_managed_wrapper:
7495 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7496 * the delegate which wraps the managed method to be called. For closed delegates,
7497 * it could have fewer parameters than the method it wraps.
7498 * THIS_LOC is the memory location where the target of the delegate is stored.
7501 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7504 MonoMethodSignature *sig, *csig;
7510 /* we first do all conversions */
7511 for (i = 0; i < sig->param_count; i ++) {
7512 MonoType *t = sig->params [i];
7515 case MONO_TYPE_OBJECT:
7516 case MONO_TYPE_CLASS:
7517 case MONO_TYPE_VALUETYPE:
7518 case MONO_TYPE_ARRAY:
7519 case MONO_TYPE_SZARRAY:
7520 case MONO_TYPE_STRING:
7521 case MONO_TYPE_BOOLEAN:
7522 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7526 if (!sig->ret->byref) {
7527 switch (sig->ret->type) {
7528 case MONO_TYPE_STRING:
7529 csig->ret = &mono_defaults.int_class->byval_arg;
7536 MonoMethodSignature *sig, *csig;
7538 gboolean closed = FALSE;
7543 /* allocate local 0 (pointer) src_ptr */
7544 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7545 /* allocate local 1 (pointer) dst_ptr */
7546 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7547 /* allocate local 2 (boolean) delete_old */
7548 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7550 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7551 /* Closed delegate */
7552 g_assert (sig->param_count == invoke_sig->param_count + 1);
7554 /* Use a new signature without the first argument */
7555 sig = mono_metadata_signature_dup (sig);
7556 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7557 sig->param_count --;
7560 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7561 /* allocate local 3 to store the return value */
7562 mono_mb_add_local (mb, sig->ret);
7565 mono_mb_emit_icon (mb, 0);
7566 mono_mb_emit_stloc (mb, 2);
7569 * Might need to attach the thread to the JIT or change the
7570 * domain for the callback.
7572 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7573 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7575 /* we first do all conversions */
7576 tmp_locals = alloca (sizeof (int) * sig->param_count);
7577 for (i = 0; i < sig->param_count; i ++) {
7578 MonoType *t = sig->params [i];
7581 case MONO_TYPE_OBJECT:
7582 case MONO_TYPE_CLASS:
7583 case MONO_TYPE_VALUETYPE:
7584 case MONO_TYPE_ARRAY:
7585 case MONO_TYPE_SZARRAY:
7586 case MONO_TYPE_STRING:
7587 case MONO_TYPE_BOOLEAN:
7588 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7597 emit_thread_interrupt_checkpoint (mb);
7600 if (target_handle) {
7601 mono_mb_emit_icon (mb, (gint32)target_handle);
7602 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7605 g_assert_not_reached ();
7607 } else if (closed) {
7608 mono_mb_emit_icon (mb, (gint32)target_handle);
7609 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7612 for (i = 0; i < sig->param_count; i++) {
7613 MonoType *t = sig->params [i];
7615 if (tmp_locals [i]) {
7617 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7619 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7622 mono_mb_emit_ldarg (mb, i);
7625 mono_mb_emit_managed_call (mb, method, NULL);
7627 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7628 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7629 } else if (!sig->ret->byref) {
7630 switch (sig->ret->type) {
7631 case MONO_TYPE_VOID:
7633 case MONO_TYPE_BOOLEAN:
7636 case MONO_TYPE_CHAR:
7648 case MONO_TYPE_OBJECT:
7649 mono_mb_emit_stloc (mb, 3);
7651 case MONO_TYPE_STRING:
7652 csig->ret = &mono_defaults.int_class->byval_arg;
7653 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7655 case MONO_TYPE_VALUETYPE:
7656 case MONO_TYPE_CLASS:
7657 case MONO_TYPE_SZARRAY:
7658 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7661 g_warning ("return type 0x%02x unknown", sig->ret->type);
7662 g_assert_not_reached ();
7665 mono_mb_emit_stloc (mb, 3);
7668 /* Convert byref arguments back */
7669 for (i = 0; i < sig->param_count; i ++) {
7670 MonoType *t = sig->params [i];
7671 MonoMarshalSpec *spec = mspecs [i + 1];
7673 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7674 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7676 else if (t->byref) {
7678 case MONO_TYPE_CLASS:
7679 case MONO_TYPE_VALUETYPE:
7680 case MONO_TYPE_OBJECT:
7681 case MONO_TYPE_STRING:
7682 case MONO_TYPE_BOOLEAN:
7683 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7689 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7690 /* The [Out] information is encoded in the delegate signature */
7692 case MONO_TYPE_SZARRAY:
7693 case MONO_TYPE_CLASS:
7694 case MONO_TYPE_VALUETYPE:
7695 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7698 g_assert_not_reached ();
7703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7704 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7706 if (m->retobj_var) {
7707 mono_mb_emit_ldloc (mb, m->retobj_var);
7708 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7709 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7712 if (!MONO_TYPE_IS_VOID(sig->ret))
7713 mono_mb_emit_ldloc (mb, 3);
7714 mono_mb_emit_byte (mb, CEE_RET);
7723 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7725 MonoMethodSignature *sig;
7730 * Under windows, delegates passed to native code must use the STDCALL
7731 * calling convention.
7733 csig->call_convention = MONO_CALL_STDCALL;
7736 sig = mono_method_signature (method);
7738 /* Change default calling convention if needed */
7739 /* Why is this a modopt ? */
7740 if (sig->ret && sig->ret->num_mods) {
7741 for (i = 0; i < sig->ret->num_mods; ++i) {
7743 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7744 g_assert (mono_error_ok (&error));
7745 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7746 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7747 csig->call_convention = MONO_CALL_C;
7748 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7749 csig->call_convention = MONO_CALL_STDCALL;
7750 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7751 csig->call_convention = MONO_CALL_FASTCALL;
7752 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7753 csig->call_convention = MONO_CALL_THISCALL;
7760 * generates IL code to call managed methods from unmanaged code
7761 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7764 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7766 static MonoClass *UnmanagedFunctionPointerAttribute;
7767 MonoMethodSignature *sig, *csig, *invoke_sig;
7768 MonoMethodBuilder *mb;
7769 MonoMethod *res, *invoke;
7770 MonoMarshalSpec **mspecs;
7771 MonoMethodPInvoke piinfo;
7774 EmitMarshalContext m;
7776 g_assert (method != NULL);
7777 g_assert (!mono_method_signature (method)->pinvoke);
7780 * FIXME: Should cache the method+delegate type pair, since the same method
7781 * could be called with different delegates, thus different marshalling
7784 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7785 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7788 invoke = mono_get_delegate_invoke (delegate_klass);
7789 invoke_sig = mono_method_signature (invoke);
7791 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7792 mono_method_get_marshal_info (invoke, mspecs);
7794 sig = mono_method_signature (method);
7796 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7798 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7799 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7801 /* we copy the signature, so that we can modify it */
7803 /* Need to free this later */
7804 csig = mono_metadata_signature_dup (invoke_sig);
7806 csig = signature_dup (method->klass->image, invoke_sig);
7810 memset (&m, 0, sizeof (m));
7816 m.image = method->klass->image;
7818 mono_marshal_set_callconv_from_modopt (invoke, csig);
7820 /* Handle the UnmanagedFunctionPointerAttribute */
7821 if (!UnmanagedFunctionPointerAttribute)
7822 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7824 /* The attribute is only available in Net 2.0 */
7825 if (UnmanagedFunctionPointerAttribute) {
7826 MonoCustomAttrInfo *cinfo;
7827 MonoCustomAttrEntry *attr;
7830 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7831 * contents of the attribute without constructing it, as that might not be
7832 * possible when running in cross-compiling mode.
7834 cinfo = mono_custom_attrs_from_class (delegate_klass);
7837 for (i = 0; i < cinfo->num_attrs; ++i) {
7838 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7839 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7840 attr = &cinfo->attrs [i];
7846 MonoArray *typed_args, *named_args;
7847 CattrNamedArg *arginfo;
7851 MonoBoolean set_last_error = 0;
7854 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7855 g_assert (mono_error_ok (&error));
7856 g_assert (mono_array_length (typed_args) == 1);
7859 o = mono_array_get (typed_args, MonoObject*, 0);
7860 call_conv = *(gint32*)mono_object_unbox (o);
7863 for (i = 0; i < mono_array_length (named_args); ++i) {
7864 CattrNamedArg *narg = &arginfo [i];
7866 o = mono_array_get (named_args, MonoObject*, i);
7868 g_assert (narg->field);
7869 if (!strcmp (narg->field->name, "CharSet")) {
7870 charset = *(gint32*)mono_object_unbox (o);
7871 } else if (!strcmp (narg->field->name, "SetLastError")) {
7872 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7873 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7874 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7875 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7876 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7878 g_assert_not_reached ();
7884 memset (&piinfo, 0, sizeof (piinfo));
7886 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7888 csig->call_convention = call_conv - 1;
7891 if (cinfo && !cinfo->cached)
7892 mono_custom_attrs_free (cinfo);
7895 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7897 if (!target_handle) {
7900 // FIXME: Associate it with the method+delegate_klass pair
7901 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7902 info->d.native_to_managed.method = method;
7903 info->d.native_to_managed.klass = delegate_klass;
7905 res = mono_mb_create_and_cache_full (cache, method,
7906 mb, csig, sig->param_count + 16,
7912 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7916 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7918 mono_metadata_free_marshal_spec (mspecs [i]);
7921 /* code_for (res); */
7927 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7930 MonoMethodSignature *sig;
7931 MonoMethodBuilder *mb;
7936 method = mono_get_method (image, token, NULL);
7939 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7940 MonoMethodSignature *csig;
7941 MonoMarshalSpec **mspecs;
7942 EmitMarshalContext m;
7944 sig = mono_method_signature (method);
7945 g_assert (!sig->hasthis);
7947 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7948 mono_method_get_marshal_info (method, mspecs);
7950 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7951 csig = signature_dup (image, sig);
7955 memset (&m, 0, sizeof (m));
7963 mono_marshal_set_callconv_from_modopt (method, csig);
7965 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7967 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7972 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7975 for (i = sig->param_count; i >= 0; i--)
7977 mono_metadata_free_marshal_spec (mspecs [i]);
7980 return mono_compile_method (method);
7983 sig = mono_method_signature (method);
7984 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7986 param_count = sig->param_count + sig->hasthis;
7988 for (i = 0; i < param_count; i++)
7989 mono_mb_emit_ldarg (mb, i);
7991 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7992 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7994 mono_mb_emit_op (mb, CEE_CALL, method);
7995 mono_mb_emit_byte (mb, CEE_RET);
8000 method = mono_mb_create (mb, sig, param_count, NULL);
8003 return mono_compile_method (method);
8007 * This does the equivalent of mono_object_castclass_with_cache.
8008 * The wrapper info for the wrapper is a WrapperInfo structure.
8011 mono_marshal_get_castclass_with_cache (void)
8013 static MonoMethod *cached;
8015 MonoMethodBuilder *mb;
8016 MonoMethodSignature *sig;
8017 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8023 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8024 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8025 sig->params [0] = &mono_defaults.object_class->byval_arg;
8026 sig->params [1] = &mono_defaults.int_class->byval_arg;
8027 sig->params [2] = &mono_defaults.int_class->byval_arg;
8028 sig->ret = &mono_defaults.object_class->byval_arg;
8032 /* allocate local 0 (pointer) obj_vtable */
8033 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8036 mono_mb_emit_ldarg (mb, 0);
8037 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8039 /*obj_vtable = obj->vtable;*/
8040 mono_mb_emit_ldarg (mb, 0);
8041 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8042 mono_mb_emit_byte (mb, CEE_LDIND_I);
8043 mono_mb_emit_stloc (mb, 0);
8046 mono_mb_emit_ldarg (mb, 2);
8047 mono_mb_emit_byte (mb, CEE_LDIND_I);
8048 mono_mb_emit_ldloc (mb, 0);
8050 /*if (*cache == obj_vtable)*/
8051 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8054 mono_mb_emit_ldarg (mb, 0);
8055 mono_mb_emit_byte (mb, CEE_RET);
8057 mono_mb_patch_branch (mb, cache_miss_pos);
8058 /*if (mono_object_isinst (obj, klass)) */
8059 mono_mb_emit_ldarg (mb, 0);
8060 mono_mb_emit_ldarg (mb, 1);
8061 mono_mb_emit_icall (mb, mono_object_isinst);
8062 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8064 /**cache = obj_vtable;*/
8065 mono_mb_emit_ldarg (mb, 2);
8066 mono_mb_emit_ldloc (mb, 0);
8067 mono_mb_emit_byte (mb, CEE_STIND_I);
8070 mono_mb_emit_ldarg (mb, 0);
8071 mono_mb_emit_byte (mb, CEE_RET);
8074 mono_mb_patch_branch (mb, invalid_cast_pos);
8075 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8078 mono_mb_patch_branch (mb, return_null_pos);
8079 mono_mb_emit_byte (mb, CEE_LDNULL);
8080 mono_mb_emit_byte (mb, CEE_RET);
8081 #endif /* DISABLE_JIT */
8083 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8084 res = mono_mb_create (mb, sig, 8, info);
8087 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8088 mono_free_method (res);
8089 mono_metadata_free_method_signature (sig);
8097 * This does the equivalent of mono_object_isinst_with_cache.
8098 * The wrapper info for the wrapper is a WrapperInfo structure.
8101 mono_marshal_get_isinst_with_cache (void)
8103 static MonoMethod *cached;
8105 MonoMethodBuilder *mb;
8106 MonoMethodSignature *sig;
8107 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8113 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8114 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8115 sig->params [0] = &mono_defaults.object_class->byval_arg;
8116 sig->params [1] = &mono_defaults.int_class->byval_arg;
8117 sig->params [2] = &mono_defaults.int_class->byval_arg;
8118 sig->ret = &mono_defaults.object_class->byval_arg;
8122 /* allocate local 0 (pointer) obj_vtable */
8123 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8124 /* allocate local 1 (pointer) cached_vtable */
8125 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8128 mono_mb_emit_ldarg (mb, 0);
8129 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8131 /*obj_vtable = obj->vtable;*/
8132 mono_mb_emit_ldarg (mb, 0);
8133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8134 mono_mb_emit_byte (mb, CEE_LDIND_I);
8135 mono_mb_emit_stloc (mb, 0);
8137 /* cached_vtable = *cache*/
8138 mono_mb_emit_ldarg (mb, 2);
8139 mono_mb_emit_byte (mb, CEE_LDIND_I);
8140 mono_mb_emit_stloc (mb, 1);
8142 mono_mb_emit_ldloc (mb, 1);
8143 mono_mb_emit_byte (mb, CEE_LDC_I4);
8144 mono_mb_emit_i4 (mb, ~0x1);
8145 mono_mb_emit_byte (mb, CEE_CONV_I);
8146 mono_mb_emit_byte (mb, CEE_AND);
8147 mono_mb_emit_ldloc (mb, 0);
8148 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8149 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8151 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8152 mono_mb_emit_ldloc (mb, 1);
8153 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8154 mono_mb_emit_byte (mb, CEE_CONV_U);
8155 mono_mb_emit_byte (mb, CEE_AND);
8156 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8159 mono_mb_emit_ldarg (mb, 0);
8160 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8163 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8164 mono_mb_emit_byte (mb, CEE_LDNULL);
8166 mono_mb_patch_branch (mb, cache_hit_pos);
8167 mono_mb_emit_byte (mb, CEE_RET);
8169 mono_mb_patch_branch (mb, cache_miss_pos);
8170 /*if (mono_object_isinst (obj, klass)) */
8171 mono_mb_emit_ldarg (mb, 0);
8172 mono_mb_emit_ldarg (mb, 1);
8173 mono_mb_emit_icall (mb, mono_object_isinst);
8174 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8176 /**cache = obj_vtable;*/
8177 mono_mb_emit_ldarg (mb, 2);
8178 mono_mb_emit_ldloc (mb, 0);
8179 mono_mb_emit_byte (mb, CEE_STIND_I);
8182 mono_mb_emit_ldarg (mb, 0);
8183 mono_mb_emit_byte (mb, CEE_RET);
8186 mono_mb_patch_branch (mb, not_an_instance_pos);
8187 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8188 mono_mb_emit_ldarg (mb, 2);
8189 /*obj_vtable | 0x1*/
8190 mono_mb_emit_ldloc (mb, 0);
8191 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8192 mono_mb_emit_byte (mb, CEE_CONV_U);
8193 mono_mb_emit_byte (mb, CEE_OR);
8196 mono_mb_emit_byte (mb, CEE_STIND_I);
8199 mono_mb_patch_branch (mb, return_null_pos);
8200 mono_mb_emit_byte (mb, CEE_LDNULL);
8201 mono_mb_emit_byte (mb, CEE_RET);
8204 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8205 res = mono_mb_create (mb, sig, 8, info);
8208 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8209 mono_free_method (res);
8210 mono_metadata_free_method_signature (sig);
8218 * mono_marshal_get_isinst:
8219 * @klass: the type of the field
8221 * This method generates a function which can be used to check if an object is
8222 * an instance of the given type, icluding the case where the object is a proxy.
8223 * The generated function has the following signature:
8224 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8227 mono_marshal_get_isinst (MonoClass *klass)
8229 static MonoMethodSignature *isint_sig = NULL;
8233 int pos_was_ok, pos_end;
8234 #ifndef DISABLE_REMOTING
8235 int pos_end2, pos_failed;
8238 MonoMethodBuilder *mb;
8240 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8241 if ((res = mono_marshal_find_in_cache (cache, klass)))
8245 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8246 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8247 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8248 isint_sig->pinvoke = 0;
8251 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8252 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8255 mb->method->save_lmf = 1;
8258 /* check if the object is a proxy that needs special cast */
8259 mono_mb_emit_ldarg (mb, 0);
8260 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8261 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8263 /* The result of MONO_CISINST can be:
8264 0) the type check succeeded
8265 1) the type check did not succeed
8266 2) a CanCastTo call is needed */
8267 #ifndef DISABLE_REMOTING
8268 mono_mb_emit_byte (mb, CEE_DUP);
8269 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8271 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8272 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8274 /* get the real proxy from the transparent proxy*/
8276 mono_mb_emit_ldarg (mb, 0);
8277 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8278 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8282 mono_mb_patch_branch (mb, pos_failed);
8283 mono_mb_emit_byte (mb, CEE_LDNULL);
8284 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8288 mono_mb_patch_branch (mb, pos_was_ok);
8289 mono_mb_emit_byte (mb, CEE_POP);
8290 mono_mb_emit_ldarg (mb, 0);
8294 mono_mb_patch_branch (mb, pos_end);
8295 mono_mb_patch_branch (mb, pos_end2);
8296 mono_mb_emit_byte (mb, CEE_RET);
8298 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8302 mono_mb_emit_byte (mb, CEE_LDNULL);
8303 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8307 mono_mb_patch_branch (mb, pos_was_ok);
8308 mono_mb_emit_ldarg (mb, 0);
8312 mono_mb_patch_branch (mb, pos_end);
8313 mono_mb_emit_byte (mb, CEE_RET);
8314 #endif /* DISABLE_REMOTING */
8315 #endif /* DISABLE_JIT */
8317 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8318 info->d.proxy.klass = klass;
8319 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8326 * mono_marshal_get_castclass:
8327 * @klass: the type of the field
8329 * This method generates a function which can be used to cast an object to
8330 * an instance of the given type, icluding the case where the object is a proxy.
8331 * The generated function has the following signature:
8332 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8333 * The wrapper info for the wrapper is a WrapperInfo structure.
8336 mono_marshal_get_castclass (MonoClass *klass)
8338 static MonoMethodSignature *castclass_sig = NULL;
8341 #ifndef DISABLE_REMOTING
8342 int pos_was_ok, pos_was_ok2;
8345 MonoMethodBuilder *mb;
8348 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8349 if ((res = mono_marshal_find_in_cache (cache, klass)))
8352 if (!castclass_sig) {
8353 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8354 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8355 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8356 castclass_sig->pinvoke = 0;
8359 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8360 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8363 mb->method->save_lmf = 1;
8366 /* check if the object is a proxy that needs special cast */
8367 mono_mb_emit_ldarg (mb, 0);
8368 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8369 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8371 /* The result of MONO_CCASTCLASS can be:
8372 0) the cast is valid
8373 1) cast of unknown proxy type
8374 or an exception if the cast is is invalid
8376 #ifndef DISABLE_REMOTING
8377 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8379 /* get the real proxy from the transparent proxy*/
8381 mono_mb_emit_ldarg (mb, 0);
8382 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8383 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8386 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8389 mono_mb_patch_branch (mb, pos_was_ok);
8390 mono_mb_patch_branch (mb, pos_was_ok2);
8392 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8393 mono_mb_emit_byte (mb, CEE_POP);
8394 #endif /* DISABLE_REMOTING */
8396 mono_mb_emit_ldarg (mb, 0);
8399 mono_mb_emit_byte (mb, CEE_RET);
8400 #endif /* DISABLE_JIT */
8402 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8404 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8412 * mono_marshal_get_struct_to_ptr:
8415 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8416 * The wrapper info for the wrapper is a WrapperInfo structure.
8419 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8421 MonoMethodBuilder *mb;
8422 static MonoMethod *stoptr = NULL;
8426 g_assert (klass != NULL);
8428 mono_marshal_load_type_info (klass);
8430 if (klass->marshal_info->str_to_ptr)
8431 return klass->marshal_info->str_to_ptr;
8434 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8437 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8440 if (klass->blittable) {
8441 mono_mb_emit_byte (mb, CEE_LDARG_1);
8442 mono_mb_emit_byte (mb, CEE_LDARG_0);
8443 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8444 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8445 mono_mb_emit_byte (mb, CEE_PREFIX1);
8446 mono_mb_emit_byte (mb, CEE_CPBLK);
8449 /* allocate local 0 (pointer) src_ptr */
8450 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8451 /* allocate local 1 (pointer) dst_ptr */
8452 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8453 /* allocate local 2 (boolean) delete_old */
8454 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8455 mono_mb_emit_byte (mb, CEE_LDARG_2);
8456 mono_mb_emit_stloc (mb, 2);
8458 /* initialize src_ptr to point to the start of object data */
8459 mono_mb_emit_byte (mb, CEE_LDARG_0);
8460 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8461 mono_mb_emit_stloc (mb, 0);
8463 /* initialize dst_ptr */
8464 mono_mb_emit_byte (mb, CEE_LDARG_1);
8465 mono_mb_emit_stloc (mb, 1);
8467 emit_struct_conv (mb, klass, FALSE);
8470 mono_mb_emit_byte (mb, CEE_RET);
8472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8473 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8476 klass->marshal_info->str_to_ptr = res;
8481 * mono_marshal_get_ptr_to_struct:
8484 * generates IL code for PtrToStructure (IntPtr src, object structure)
8485 * The wrapper info for the wrapper is a WrapperInfo structure.
8488 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8490 MonoMethodBuilder *mb;
8491 static MonoMethodSignature *ptostr = NULL;
8495 g_assert (klass != NULL);
8497 mono_marshal_load_type_info (klass);
8499 if (klass->marshal_info->ptr_to_str)
8500 return klass->marshal_info->ptr_to_str;
8503 MonoMethodSignature *sig;
8505 /* Create the signature corresponding to
8506 static void PtrToStructure (IntPtr ptr, object structure);
8507 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8508 sig = mono_create_icall_signature ("void ptr object");
8509 sig = signature_dup (mono_defaults.corlib, sig);
8511 mono_memory_barrier ();
8515 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8518 if (klass->blittable) {
8519 mono_mb_emit_byte (mb, CEE_LDARG_1);
8520 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8521 mono_mb_emit_byte (mb, CEE_LDARG_0);
8522 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8523 mono_mb_emit_byte (mb, CEE_PREFIX1);
8524 mono_mb_emit_byte (mb, CEE_CPBLK);
8527 /* allocate local 0 (pointer) src_ptr */
8528 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8529 /* allocate local 1 (pointer) dst_ptr */
8530 mono_mb_add_local (mb, &klass->this_arg);
8532 /* initialize src_ptr to point to the start of object data */
8533 mono_mb_emit_byte (mb, CEE_LDARG_0);
8534 mono_mb_emit_stloc (mb, 0);
8536 /* initialize dst_ptr */
8537 mono_mb_emit_byte (mb, CEE_LDARG_1);
8538 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8539 mono_mb_emit_stloc (mb, 1);
8541 emit_struct_conv (mb, klass, TRUE);
8544 mono_mb_emit_byte (mb, CEE_RET);
8546 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8547 res = mono_mb_create (mb, ptostr, 0, info);
8550 klass->marshal_info->ptr_to_str = res;
8555 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8556 * This is used to avoid infinite recursion since it is hard to determine where to
8557 * replace a method with its synchronized wrapper, and where not.
8558 * The runtime should execute METHOD instead of the wrapper.
8559 * The wrapper info for the wrapper is a WrapperInfo structure.
8562 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8564 MonoMethodBuilder *mb;
8566 MonoMethodSignature *sig;
8568 MonoGenericContext *ctx = NULL;
8569 MonoGenericContainer *container = NULL;
8571 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8572 ctx = &((MonoMethodInflated*)method)->context;
8573 method = ((MonoMethodInflated*)method)->declaring;
8574 container = mono_method_get_generic_container (method);
8576 container = method->klass->generic_container;
8577 g_assert (container);
8580 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8582 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8583 mono_mb_emit_byte (mb, CEE_RET);
8585 sig = signature_dup (method->klass->image, mono_method_signature (method));
8587 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8588 info->d.synchronized_inner.method = method;
8589 res = mono_mb_create (mb, sig, 0, info);
8593 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8594 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8600 * generates IL code for the synchronized wrapper: the generated method
8601 * calls METHOD while locking 'this' or the parent type.
8604 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8606 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8607 MonoMethodSignature *sig;
8608 MonoExceptionClause *clause;
8609 MonoMethodBuilder *mb;
8612 int i, pos, this_local, ret_local = 0;
8613 MonoGenericContext *ctx = NULL;
8614 MonoMethod *orig_method = NULL;
8615 MonoGenericContainer *container = NULL;
8619 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8622 /* FIXME: Support generic methods too */
8623 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8624 orig_method = method;
8625 ctx = &((MonoMethodInflated*)method)->context;
8626 method = ((MonoMethodInflated*)method)->declaring;
8627 container = mono_method_get_generic_container (method);
8629 container = method->klass->generic_container;
8630 g_assert (container);
8637 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8638 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8642 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8643 if ((res = mono_marshal_find_in_cache (cache, method)))
8647 sig = signature_dup (method->klass->image, mono_method_signature (method));
8650 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8654 if (!MONO_TYPE_IS_VOID (sig->ret))
8655 ret_local = mono_mb_add_local (mb, sig->ret);
8658 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8659 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8661 /* This will throw the type load exception when the wrapper is compiled */
8662 mono_mb_emit_byte (mb, CEE_LDNULL);
8663 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8664 mono_mb_emit_byte (mb, CEE_POP);
8666 if (!MONO_TYPE_IS_VOID (sig->ret))
8667 mono_mb_emit_ldloc (mb, ret_local);
8668 mono_mb_emit_byte (mb, CEE_RET);
8671 res = mono_mb_create_and_cache (cache, method,
8672 mb, sig, sig->param_count + 16);
8680 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8682 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8683 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8686 mono_marshal_lock ();
8688 if (!enter_method) {
8689 MonoMethodDesc *desc;
8691 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8692 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8693 g_assert (enter_method);
8694 mono_method_desc_free (desc);
8696 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8697 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8698 g_assert (exit_method);
8699 mono_method_desc_free (desc);
8701 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8702 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8703 g_assert (gettypefromhandle_method);
8704 mono_method_desc_free (desc);
8707 mono_marshal_unlock ();
8710 /* Push this or the type object */
8711 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8712 /* We have special handling for this in the JIT */
8713 int index = mono_mb_add_data (mb, method->klass);
8714 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8715 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8716 mono_mb_emit_i4 (mb, index);
8718 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8721 mono_mb_emit_ldarg (mb, 0);
8722 mono_mb_emit_stloc (mb, this_local);
8724 /* Call Monitor::Enter() */
8725 mono_mb_emit_ldloc (mb, this_local);
8726 mono_mb_emit_managed_call (mb, enter_method, NULL);
8728 clause->try_offset = mono_mb_get_label (mb);
8730 /* Call the method */
8732 mono_mb_emit_ldarg (mb, 0);
8733 for (i = 0; i < sig->param_count; i++)
8734 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8738 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8739 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8741 mono_mb_emit_managed_call (mb, method, NULL);
8744 if (!MONO_TYPE_IS_VOID (sig->ret))
8745 mono_mb_emit_stloc (mb, ret_local);
8747 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8749 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8750 clause->handler_offset = mono_mb_get_label (mb);
8752 /* Call Monitor::Exit() */
8753 mono_mb_emit_ldloc (mb, this_local);
8754 mono_mb_emit_managed_call (mb, exit_method, NULL);
8755 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8757 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8759 mono_mb_patch_branch (mb, pos);
8760 if (!MONO_TYPE_IS_VOID (sig->ret))
8761 mono_mb_emit_ldloc (mb, ret_local);
8762 mono_mb_emit_byte (mb, CEE_RET);
8764 mono_mb_set_clauses (mb, 1, clause);
8769 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8770 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8772 res = mono_mb_create_and_cache (cache, method,
8773 mb, sig, sig->param_count + 16);
8782 * the returned method calls 'method' unboxing the this argument
8785 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8787 MonoMethodSignature *sig = mono_method_signature (method);
8789 MonoMethodBuilder *mb;
8793 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8794 if ((res = mono_marshal_find_in_cache (cache, method)))
8797 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8799 g_assert (sig->hasthis);
8802 mono_mb_emit_ldarg (mb, 0);
8803 mono_mb_emit_icon (mb, sizeof (MonoObject));
8804 mono_mb_emit_byte (mb, CEE_ADD);
8805 for (i = 0; i < sig->param_count; ++i)
8806 mono_mb_emit_ldarg (mb, i + 1);
8807 mono_mb_emit_managed_call (mb, method, NULL);
8808 mono_mb_emit_byte (mb, CEE_RET);
8811 res = mono_mb_create_and_cache (cache, method,
8812 mb, sig, sig->param_count + 16);
8815 /* code_for (res); */
8821 STELEMREF_OBJECT, /*no check at all*/
8822 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8823 STELEMREF_CLASS, /*only the klass->parents check*/
8824 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8825 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8826 STELEMREF_KIND_COUNT
8829 static const char *strelemref_wrapper_name[] = {
8830 "object", "sealed_class", "class", "interface", "complex"
8834 is_monomorphic_array (MonoClass *klass)
8836 MonoClass *element_class;
8837 if (klass->rank != 1)
8840 element_class = klass->element_class;
8841 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8845 get_virtual_stelemref_kind (MonoClass *element_class)
8847 if (element_class == mono_defaults.object_class)
8848 return STELEMREF_OBJECT;
8849 if (is_monomorphic_array (element_class))
8850 return STELEMREF_SEALED_CLASS;
8851 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8852 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8853 #ifdef COMPRESSED_INTERFACE_BITMAP
8854 return STELEMREF_COMPLEX;
8856 return STELEMREF_INTERFACE;
8858 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8859 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8860 return STELEMREF_COMPLEX;
8861 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8862 return STELEMREF_SEALED_CLASS;
8863 return STELEMREF_CLASS;
8869 load_array_element_address (MonoMethodBuilder *mb)
8871 mono_mb_emit_ldarg (mb, 0);
8872 mono_mb_emit_ldarg (mb, 1);
8873 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8877 load_array_class (MonoMethodBuilder *mb, int aklass)
8879 mono_mb_emit_ldarg (mb, 0);
8880 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8881 mono_mb_emit_byte (mb, CEE_LDIND_I);
8882 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8883 mono_mb_emit_byte (mb, CEE_LDIND_I);
8884 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8885 mono_mb_emit_byte (mb, CEE_LDIND_I);
8886 mono_mb_emit_stloc (mb, aklass);
8890 load_value_class (MonoMethodBuilder *mb, int vklass)
8892 mono_mb_emit_ldarg (mb, 2);
8893 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8894 mono_mb_emit_byte (mb, CEE_LDIND_I);
8895 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8896 mono_mb_emit_byte (mb, CEE_LDIND_I);
8897 mono_mb_emit_stloc (mb, vklass);
8903 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8905 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8906 printf ("slow vstore of %s\n", name);
8912 * The wrapper info for the wrapper is a WrapperInfo structure.
8915 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8916 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8917 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8918 * - Add a case for arrays of arrays.
8921 get_virtual_stelemref_wrapper (int kind)
8923 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8924 static MonoMethodSignature *signature;
8925 MonoMethodBuilder *mb;
8928 const char *param_names [16];
8930 int aklass, vklass, vtable, uiid;
8931 int array_slot_addr;
8934 if (cached_methods [kind])
8935 return cached_methods [kind];
8937 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8938 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8942 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8944 /* void this::stelemref (size_t idx, void* value) */
8945 sig->ret = &mono_defaults.void_class->byval_arg;
8946 sig->hasthis = TRUE;
8947 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8948 sig->params [1] = &mono_defaults.object_class->byval_arg;
8953 param_names [0] = "index";
8954 param_names [1] = "value";
8955 mono_mb_set_param_names (mb, param_names);
8957 /*For now simply call plain old stelemref*/
8959 case STELEMREF_OBJECT:
8960 /* ldelema (implicit bound check) */
8961 load_array_element_address (mb);
8963 mono_mb_emit_ldarg (mb, 2);
8964 mono_mb_emit_byte (mb, CEE_STIND_REF);
8965 mono_mb_emit_byte (mb, CEE_RET);
8968 case STELEMREF_COMPLEX:
8970 <ldelema (bound check)>
8973 if (!mono_object_isinst (value, aklass))
8977 *array_slot_addr = value;
8980 throw new ArrayTypeMismatchException ();
8983 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8984 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8988 /*Use this to debug/record stores that are going thru the slow path*/
8989 MonoMethodSignature *csig;
8990 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8991 csig->ret = &mono_defaults.void_class->byval_arg;
8992 csig->params [0] = &mono_defaults.object_class->byval_arg;
8993 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8994 csig->params [2] = &mono_defaults.object_class->byval_arg;
8995 mono_mb_emit_ldarg (mb, 0);
8996 mono_mb_emit_ldarg (mb, 1);
8997 mono_mb_emit_ldarg (mb, 2);
8998 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9002 /* ldelema (implicit bound check) */
9003 load_array_element_address (mb);
9004 mono_mb_emit_stloc (mb, array_slot_addr);
9006 /* if (!value) goto do_store */
9007 mono_mb_emit_ldarg (mb, 2);
9008 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9010 /* aklass = array->vtable->klass->element_class */
9011 load_array_class (mb, aklass);
9013 /*if (mono_object_isinst (value, aklass)) */
9014 mono_mb_emit_ldarg (mb, 2);
9015 mono_mb_emit_ldloc (mb, aklass);
9016 mono_mb_emit_icall (mb, mono_object_isinst);
9017 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9020 mono_mb_patch_branch (mb, b1);
9021 mono_mb_emit_ldloc (mb, array_slot_addr);
9022 mono_mb_emit_ldarg (mb, 2);
9023 mono_mb_emit_byte (mb, CEE_STIND_REF);
9024 mono_mb_emit_byte (mb, CEE_RET);
9027 mono_mb_patch_branch (mb, b2);
9029 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9032 case STELEMREF_SEALED_CLASS:
9034 <ldelema (bound check)>
9038 aklass = array->vtable->klass->element_class;
9039 vklass = value->vtable->klass;
9041 if (vklass != aklass)
9045 *array_slot_addr = value;
9048 throw new ArrayTypeMismatchException ();
9050 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9051 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9052 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9055 /* ldelema (implicit bound check) */
9056 load_array_element_address (mb);
9057 mono_mb_emit_stloc (mb, array_slot_addr);
9059 /* if (!value) goto do_store */
9060 mono_mb_emit_ldarg (mb, 2);
9061 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9063 /* aklass = array->vtable->klass->element_class */
9064 load_array_class (mb, aklass);
9066 /* vklass = value->vtable->klass */
9067 load_value_class (mb, vklass);
9069 /*if (vklass != aklass) goto do_exception; */
9070 mono_mb_emit_ldloc (mb, aklass);
9071 mono_mb_emit_ldloc (mb, vklass);
9072 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9075 mono_mb_patch_branch (mb, b1);
9076 mono_mb_emit_ldloc (mb, array_slot_addr);
9077 mono_mb_emit_ldarg (mb, 2);
9078 mono_mb_emit_byte (mb, CEE_STIND_REF);
9079 mono_mb_emit_byte (mb, CEE_RET);
9082 mono_mb_patch_branch (mb, b2);
9083 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9086 case STELEMREF_CLASS:
9089 <ldelema (bound check)>
9093 aklass = array->vtable->klass->element_class;
9094 vklass = value->vtable->klass;
9096 if (vklass->idepth < aklass->idepth)
9099 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9103 *array_slot_addr = value;
9107 throw new ArrayTypeMismatchException ();
9109 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9110 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9111 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9113 /* ldelema (implicit bound check) */
9114 load_array_element_address (mb);
9115 mono_mb_emit_stloc (mb, array_slot_addr);
9117 /* if (!value) goto do_store */
9118 mono_mb_emit_ldarg (mb, 2);
9119 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9121 /* aklass = array->vtable->klass->element_class */
9122 load_array_class (mb, aklass);
9124 /* vklass = value->vtable->klass */
9125 load_value_class (mb, vklass);
9127 /*if (mono_object_isinst (value, aklass)) */
9128 mono_mb_emit_ldarg (mb, 2);
9129 mono_mb_emit_ldloc (mb, aklass);
9130 mono_mb_emit_icall (mb, mono_object_isinst);
9131 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9133 /* if (vklass->idepth < aklass->idepth) goto failue */
9134 mono_mb_emit_ldloc (mb, vklass);
9135 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9136 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9138 mono_mb_emit_ldloc (mb, aklass);
9139 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9140 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9142 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9144 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9145 mono_mb_emit_ldloc (mb, vklass);
9146 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9147 mono_mb_emit_byte (mb, CEE_LDIND_I);
9149 mono_mb_emit_ldloc (mb, aklass);
9150 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9151 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9152 mono_mb_emit_icon (mb, 1);
9153 mono_mb_emit_byte (mb, CEE_SUB);
9154 mono_mb_emit_icon (mb, sizeof (void*));
9155 mono_mb_emit_byte (mb, CEE_MUL);
9156 mono_mb_emit_byte (mb, CEE_ADD);
9157 mono_mb_emit_byte (mb, CEE_LDIND_I);
9159 mono_mb_emit_ldloc (mb, aklass);
9160 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9163 mono_mb_patch_branch (mb, b1);
9164 mono_mb_emit_ldloc (mb, array_slot_addr);
9165 mono_mb_emit_ldarg (mb, 2);
9166 mono_mb_emit_byte (mb, CEE_STIND_REF);
9167 mono_mb_emit_byte (mb, CEE_RET);
9170 mono_mb_patch_branch (mb, b2);
9171 mono_mb_patch_branch (mb, b3);
9173 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9176 case STELEMREF_INTERFACE:
9183 klass = array->obj.vtable->klass->element_class;
9185 uiid = klass->interface_id;
9186 if (uiid > vt->max_interface_id)
9188 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9191 mono_array_setref (array, index, value);
9194 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9196 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9197 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9198 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9199 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9201 /* ldelema (implicit bound check) */
9202 load_array_element_address (mb);
9203 mono_mb_emit_stloc (mb, array_slot_addr);
9205 /* if (!value) goto do_store */
9206 mono_mb_emit_ldarg (mb, 2);
9207 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9209 /* klass = array->vtable->klass->element_class */
9210 load_array_class (mb, aklass);
9212 /* vt = value->vtable */
9213 mono_mb_emit_ldarg (mb, 2);
9214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9215 mono_mb_emit_byte (mb, CEE_LDIND_I);
9216 mono_mb_emit_stloc (mb, vtable);
9218 /* uiid = klass->interface_id; */
9219 mono_mb_emit_ldloc (mb, aklass);
9220 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9221 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9222 mono_mb_emit_stloc (mb, uiid);
9224 /*if (uiid > vt->max_interface_id)*/
9225 mono_mb_emit_ldloc (mb, uiid);
9226 mono_mb_emit_ldloc (mb, vtable);
9227 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9228 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9229 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9231 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9233 /*vt->interface_bitmap*/
9234 mono_mb_emit_ldloc (mb, vtable);
9235 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9236 mono_mb_emit_byte (mb, CEE_LDIND_I);
9239 mono_mb_emit_ldloc (mb, uiid);
9240 mono_mb_emit_icon (mb, 3);
9241 mono_mb_emit_byte (mb, CEE_SHR_UN);
9243 /*vt->interface_bitmap [(uiid) >> 3]*/
9244 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9245 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9247 /*(1 << ((uiid)&7)))*/
9248 mono_mb_emit_icon (mb, 1);
9249 mono_mb_emit_ldloc (mb, uiid);
9250 mono_mb_emit_icon (mb, 7);
9251 mono_mb_emit_byte (mb, CEE_AND);
9252 mono_mb_emit_byte (mb, CEE_SHL);
9254 /*bitwise and the whole thing*/
9255 mono_mb_emit_byte (mb, CEE_AND);
9256 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9259 mono_mb_patch_branch (mb, b1);
9260 mono_mb_emit_ldloc (mb, array_slot_addr);
9261 mono_mb_emit_ldarg (mb, 2);
9262 mono_mb_emit_byte (mb, CEE_STIND_REF);
9263 mono_mb_emit_byte (mb, CEE_RET);
9266 mono_mb_patch_branch (mb, b2);
9267 mono_mb_patch_branch (mb, b3);
9268 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9272 mono_mb_emit_ldarg (mb, 0);
9273 mono_mb_emit_ldarg (mb, 1);
9274 mono_mb_emit_ldarg (mb, 2);
9275 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9276 mono_mb_emit_byte (mb, CEE_RET);
9279 #endif /* DISABLE_JIT */
9280 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9281 info->d.virtual_stelemref.kind = kind;
9282 res = mono_mb_create (mb, signature, 4, info);
9283 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9285 mono_marshal_lock ();
9286 if (!cached_methods [kind]) {
9287 cached_methods [kind] = res;
9288 mono_marshal_unlock ();
9290 mono_marshal_unlock ();
9291 mono_free_method (res);
9295 return cached_methods [kind];
9299 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9303 g_assert (array_class->rank == 1);
9304 kind = get_virtual_stelemref_kind (array_class->element_class);
9306 return get_virtual_stelemref_wrapper (kind);
9310 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9315 *nwrappers = STELEMREF_KIND_COUNT;
9316 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9317 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9318 res [i] = get_virtual_stelemref_wrapper (i);
9323 * The wrapper info for the wrapper is a WrapperInfo structure.
9326 mono_marshal_get_stelemref (void)
9328 static MonoMethod* ret = NULL;
9329 MonoMethodSignature *sig;
9330 MonoMethodBuilder *mb;
9333 guint32 b1, b2, b3, b4;
9336 int array_slot_addr;
9341 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9344 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9346 /* void stelemref (void* array, int idx, void* value) */
9347 sig->ret = &mono_defaults.void_class->byval_arg;
9348 sig->params [0] = &mono_defaults.object_class->byval_arg;
9349 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9350 sig->params [2] = &mono_defaults.object_class->byval_arg;
9353 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9354 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9355 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9359 <ldelema (bound check)>
9363 aklass = array->vtable->klass->element_class;
9364 vklass = value->vtable->klass;
9366 if (vklass->idepth < aklass->idepth)
9369 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9373 *array_slot_addr = value;
9377 if (mono_object_isinst (value, aklass))
9380 throw new ArrayTypeMismatchException ();
9383 /* ldelema (implicit bound check) */
9384 mono_mb_emit_ldarg (mb, 0);
9385 mono_mb_emit_ldarg (mb, 1);
9386 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9387 mono_mb_emit_stloc (mb, array_slot_addr);
9389 /* if (!value) goto do_store */
9390 mono_mb_emit_ldarg (mb, 2);
9391 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9393 /* aklass = array->vtable->klass->element_class */
9394 mono_mb_emit_ldarg (mb, 0);
9395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9396 mono_mb_emit_byte (mb, CEE_LDIND_I);
9397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9398 mono_mb_emit_byte (mb, CEE_LDIND_I);
9399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9400 mono_mb_emit_byte (mb, CEE_LDIND_I);
9401 mono_mb_emit_stloc (mb, aklass);
9403 /* vklass = value->vtable->klass */
9404 mono_mb_emit_ldarg (mb, 2);
9405 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9406 mono_mb_emit_byte (mb, CEE_LDIND_I);
9407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9408 mono_mb_emit_byte (mb, CEE_LDIND_I);
9409 mono_mb_emit_stloc (mb, vklass);
9411 /* if (vklass->idepth < aklass->idepth) goto failue */
9412 mono_mb_emit_ldloc (mb, vklass);
9413 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9414 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9416 mono_mb_emit_ldloc (mb, aklass);
9417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9418 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9420 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9422 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9423 mono_mb_emit_ldloc (mb, vklass);
9424 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9425 mono_mb_emit_byte (mb, CEE_LDIND_I);
9427 mono_mb_emit_ldloc (mb, aklass);
9428 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9429 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9430 mono_mb_emit_icon (mb, 1);
9431 mono_mb_emit_byte (mb, CEE_SUB);
9432 mono_mb_emit_icon (mb, sizeof (void*));
9433 mono_mb_emit_byte (mb, CEE_MUL);
9434 mono_mb_emit_byte (mb, CEE_ADD);
9435 mono_mb_emit_byte (mb, CEE_LDIND_I);
9437 mono_mb_emit_ldloc (mb, aklass);
9439 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9441 copy_pos = mono_mb_get_label (mb);
9443 mono_mb_patch_branch (mb, b1);
9444 mono_mb_emit_ldloc (mb, array_slot_addr);
9445 mono_mb_emit_ldarg (mb, 2);
9446 mono_mb_emit_byte (mb, CEE_STIND_REF);
9448 mono_mb_emit_byte (mb, CEE_RET);
9451 mono_mb_patch_branch (mb, b2);
9452 mono_mb_patch_branch (mb, b3);
9454 mono_mb_emit_ldarg (mb, 2);
9455 mono_mb_emit_ldloc (mb, aklass);
9456 mono_mb_emit_icall (mb, mono_object_isinst);
9458 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9459 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9460 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9462 mono_mb_emit_byte (mb, CEE_RET);
9464 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9465 ret = mono_mb_create (mb, sig, 4, info);
9472 * mono_marshal_get_gsharedvt_in_wrapper:
9474 * This wrapper handles calls from normal code to gsharedvt code.
9476 * The wrapper info for the wrapper is a WrapperInfo structure.
9479 mono_marshal_get_gsharedvt_in_wrapper (void)
9481 static MonoMethod* ret = NULL;
9482 MonoMethodSignature *sig;
9483 MonoMethodBuilder *mb;
9489 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9491 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9492 sig->ret = &mono_defaults.void_class->byval_arg;
9496 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9498 mono_mb_emit_byte (mb, CEE_RET);
9500 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9501 ret = mono_mb_create (mb, sig, 4, info);
9508 * mono_marshal_get_gsharedvt_out_wrapper:
9510 * This wrapper handles calls from gsharedvt code to normal code.
9512 * The wrapper info for the wrapper is a WrapperInfo structure.
9515 mono_marshal_get_gsharedvt_out_wrapper (void)
9517 static MonoMethod* ret = NULL;
9518 MonoMethodSignature *sig;
9519 MonoMethodBuilder *mb;
9525 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9527 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9528 sig->ret = &mono_defaults.void_class->byval_arg;
9532 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9534 mono_mb_emit_byte (mb, CEE_RET);
9536 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9537 ret = mono_mb_create (mb, sig, 4, info);
9549 /* LOCKING: vars accessed under the marshal lock */
9550 static ArrayElemAddr *elem_addr_cache = NULL;
9551 static int elem_addr_cache_size = 0;
9552 static int elem_addr_cache_next = 0;
9555 * mono_marshal_get_array_address:
9556 * @rank: rank of the array type
9557 * @elem_size: size in bytes of an element of an array.
9559 * Returns a MonoMethod that implements the code to get the address
9560 * of an element in a multi-dimenasional array of @rank dimensions.
9561 * The returned method takes an array as the first argument and then
9562 * @rank indexes for the @rank dimensions.
9563 * If ELEM_SIZE is 0, read the array size from the array object.
9566 mono_marshal_get_array_address (int rank, int elem_size)
9569 MonoMethodBuilder *mb;
9570 MonoMethodSignature *sig;
9573 int i, bounds, ind, realidx;
9574 int branch_pos, *branch_positions;
9578 mono_marshal_lock ();
9579 for (i = 0; i < elem_addr_cache_next; ++i) {
9580 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9581 ret = elem_addr_cache [i].method;
9585 mono_marshal_unlock ();
9589 branch_positions = g_new0 (int, rank);
9591 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9593 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9594 sig->ret = &mono_defaults.int_class->byval_arg;
9595 sig->params [0] = &mono_defaults.object_class->byval_arg;
9596 for (i = 0; i < rank; ++i) {
9597 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9600 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9601 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9605 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9606 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9607 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9609 /* bounds = array->bounds; */
9610 mono_mb_emit_ldarg (mb, 0);
9611 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9612 mono_mb_emit_byte (mb, CEE_LDIND_I);
9613 mono_mb_emit_stloc (mb, bounds);
9615 /* ind is the overall element index, realidx is the partial index in a single dimension */
9616 /* ind = idx0 - bounds [0].lower_bound */
9617 mono_mb_emit_ldarg (mb, 1);
9618 mono_mb_emit_ldloc (mb, bounds);
9619 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9620 mono_mb_emit_byte (mb, CEE_ADD);
9621 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9622 mono_mb_emit_byte (mb, CEE_SUB);
9623 mono_mb_emit_stloc (mb, ind);
9624 /* if (ind >= bounds [0].length) goto exeception; */
9625 mono_mb_emit_ldloc (mb, ind);
9626 mono_mb_emit_ldloc (mb, bounds);
9627 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9628 mono_mb_emit_byte (mb, CEE_ADD);
9629 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9630 /* note that we use unsigned comparison */
9631 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9633 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9634 * We could also decide to ignore the passed elem_size and get it
9635 * from the array object, to reduce the number of methods we generate:
9636 * the additional cost is 3 memory loads and a non-immediate mul.
9638 for (i = 1; i < rank; ++i) {
9639 /* realidx = idxi - bounds [i].lower_bound */
9640 mono_mb_emit_ldarg (mb, 1 + i);
9641 mono_mb_emit_ldloc (mb, bounds);
9642 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9643 mono_mb_emit_byte (mb, CEE_ADD);
9644 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9645 mono_mb_emit_byte (mb, CEE_SUB);
9646 mono_mb_emit_stloc (mb, realidx);
9647 /* if (realidx >= bounds [i].length) goto exeception; */
9648 mono_mb_emit_ldloc (mb, realidx);
9649 mono_mb_emit_ldloc (mb, bounds);
9650 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9651 mono_mb_emit_byte (mb, CEE_ADD);
9652 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9653 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9654 /* ind = ind * bounds [i].length + realidx */
9655 mono_mb_emit_ldloc (mb, ind);
9656 mono_mb_emit_ldloc (mb, bounds);
9657 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9658 mono_mb_emit_byte (mb, CEE_ADD);
9659 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9660 mono_mb_emit_byte (mb, CEE_MUL);
9661 mono_mb_emit_ldloc (mb, realidx);
9662 mono_mb_emit_byte (mb, CEE_ADD);
9663 mono_mb_emit_stloc (mb, ind);
9666 /* return array->vector + ind * element_size */
9667 mono_mb_emit_ldarg (mb, 0);
9668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9669 mono_mb_emit_ldloc (mb, ind);
9671 mono_mb_emit_icon (mb, elem_size);
9673 /* Load arr->vtable->klass->sizes.element_class */
9674 mono_mb_emit_ldarg (mb, 0);
9675 mono_mb_emit_byte (mb, CEE_CONV_I);
9676 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9677 mono_mb_emit_byte (mb, CEE_ADD);
9678 mono_mb_emit_byte (mb, CEE_LDIND_I);
9679 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9680 mono_mb_emit_byte (mb, CEE_ADD);
9681 mono_mb_emit_byte (mb, CEE_LDIND_I);
9682 /* sizes is an union, so this reads sizes.element_size */
9683 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9684 mono_mb_emit_byte (mb, CEE_ADD);
9685 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9687 mono_mb_emit_byte (mb, CEE_MUL);
9688 mono_mb_emit_byte (mb, CEE_ADD);
9689 mono_mb_emit_byte (mb, CEE_RET);
9691 /* patch the branches to get here and throw */
9692 for (i = 1; i < rank; ++i) {
9693 mono_mb_patch_branch (mb, branch_positions [i]);
9695 mono_mb_patch_branch (mb, branch_pos);
9696 /* throw exception */
9697 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9699 g_free (branch_positions);
9700 #endif /* DISABLE_JIT */
9702 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9703 info->d.element_addr.rank = rank;
9704 info->d.element_addr.elem_size = elem_size;
9705 ret = mono_mb_create (mb, sig, 4, info);
9708 /* cache the result */
9710 mono_marshal_lock ();
9711 for (i = 0; i < elem_addr_cache_next; ++i) {
9712 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9713 /* FIXME: free ret */
9714 ret = elem_addr_cache [i].method;
9720 if (elem_addr_cache_next >= elem_addr_cache_size) {
9721 int new_size = elem_addr_cache_size + 4;
9722 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9723 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9724 g_free (elem_addr_cache);
9725 elem_addr_cache = new_array;
9726 elem_addr_cache_size = new_size;
9728 elem_addr_cache [elem_addr_cache_next].rank = rank;
9729 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9730 elem_addr_cache [elem_addr_cache_next].method = ret;
9731 elem_addr_cache_next ++;
9733 mono_marshal_unlock ();
9738 * mono_marshal_get_array_accessor_wrapper:
9740 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9743 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9745 MonoMethodSignature *sig;
9746 MonoMethodBuilder *mb;
9750 MonoGenericContext *ctx = NULL;
9751 MonoMethod *orig_method = NULL;
9752 MonoGenericContainer *container = NULL;
9756 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9757 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9758 * FIXME: Use generic methods.
9765 g_assert_not_reached ();
9767 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9768 if ((res = mono_marshal_find_in_cache (cache, method)))
9772 sig = signature_dup (method->klass->image, mono_method_signature (method));
9775 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9778 /* Call the method */
9780 mono_mb_emit_ldarg (mb, 0);
9781 for (i = 0; i < sig->param_count; i++)
9782 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9786 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9787 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9789 mono_mb_emit_managed_call (mb, method, NULL);
9791 mono_mb_emit_byte (mb, CEE_RET);
9796 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9797 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9799 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9800 info->d.array_accessor.method = method;
9802 res = mono_mb_create_and_cache_full (cache, method,
9803 mb, sig, sig->param_count + 16,
9812 mono_marshal_alloc (gulong size)
9817 res = CoTaskMemAlloc (size);
9819 res = g_try_malloc ((gulong)size);
9821 mono_gc_out_of_memory ((gulong)size);
9827 mono_marshal_free (gpointer ptr)
9830 CoTaskMemFree (ptr);
9837 mono_marshal_free_array (gpointer *ptr, int size)
9844 for (i = 0; i < size; i++)
9850 mono_marshal_string_to_utf16 (MonoString *s)
9852 return s ? mono_string_chars (s) : NULL;
9856 mono_marshal_string_to_utf16_copy (MonoString *s)
9861 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9862 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9863 res [mono_string_length (s)] = 0;
9869 * mono_marshal_set_last_error:
9871 * This function is invoked to set the last error value from a P/Invoke call
9872 * which has SetLastError set.
9875 mono_marshal_set_last_error (void)
9878 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9880 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9885 mono_marshal_set_last_error_windows (int error)
9888 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9893 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9894 gpointer dest, gint32 length)
9899 MONO_CHECK_ARG_NULL (src,);
9900 MONO_CHECK_ARG_NULL (dest,);
9902 if (src->obj.vtable->klass->rank != 1) {
9903 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9906 if (start_index < 0) {
9907 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9911 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9914 if (start_index + length > mono_array_length (src)) {
9915 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9919 element_size = mono_array_element_size (src->obj.vtable->klass);
9921 /* no references should be involved */
9922 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9924 memcpy (dest, source_addr, length * element_size);
9928 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9929 MonoArray *dest, gint32 length)
9934 MONO_CHECK_ARG_NULL (src,);
9935 MONO_CHECK_ARG_NULL (dest,);
9937 if (dest->obj.vtable->klass->rank != 1) {
9938 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9941 if (start_index < 0) {
9942 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9946 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9949 if (start_index + length > mono_array_length (dest)) {
9950 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9953 element_size = mono_array_element_size (dest->obj.vtable->klass);
9955 /* no references should be involved */
9956 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9958 memcpy (dest_addr, src, length * element_size);
9962 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9967 return mono_string_new (mono_domain_get (), ptr);
9971 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9974 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9977 return mono_string_new_len (mono_domain_get (), ptr, len);
9982 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9984 MonoDomain *domain = mono_domain_get ();
9994 return mono_string_new_utf16 (domain, ptr, len);
9998 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10000 MonoDomain *domain = mono_domain_get ();
10003 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10006 return mono_string_new_utf16 (domain, ptr, len);
10011 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10013 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10017 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10023 MONO_CHECK_ARG_NULL (rtype, 0);
10025 type = rtype->type;
10026 klass = mono_class_from_mono_type (type);
10027 if (!mono_class_init (klass)) {
10028 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10032 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10034 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10035 return sizeof (gpointer);
10036 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10038 MonoException *exc;
10040 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10041 exc = mono_get_exception_argument ("t", msg);
10043 mono_set_pending_exception (exc);
10047 return mono_class_native_size (klass, NULL);
10051 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10053 MonoMethod *method;
10056 MONO_CHECK_ARG_NULL (obj,);
10057 MONO_CHECK_ARG_NULL (dst,);
10059 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10063 pa [2] = &delete_old;
10065 mono_runtime_invoke (method, NULL, pa, NULL);
10069 ptr_to_structure (gpointer src, MonoObject *dst)
10071 MonoMethod *method;
10074 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10079 mono_runtime_invoke (method, NULL, pa, NULL);
10083 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10087 MONO_CHECK_ARG_NULL (src,);
10088 MONO_CHECK_ARG_NULL (dst,);
10090 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10092 if (t->type == MONO_TYPE_VALUETYPE) {
10093 MonoException *exc;
10096 tmp = g_strdup_printf ("Destination is a boxed value type.");
10097 exc = mono_get_exception_argument ("dst", tmp);
10100 mono_set_pending_exception (exc);
10104 ptr_to_structure (src, dst);
10108 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10111 MonoDomain *domain = mono_domain_get ();
10116 MONO_CHECK_ARG_NULL (type, NULL);
10118 klass = mono_class_from_mono_type (type->type);
10119 if (!mono_class_init (klass)) {
10120 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10124 res = mono_object_new (domain, klass);
10126 ptr_to_structure (src, res);
10132 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10134 MonoMarshalType *info;
10137 int match_index = -1;
10139 MONO_CHECK_ARG_NULL (type, 0);
10140 MONO_CHECK_ARG_NULL (field_name, 0);
10142 fname = mono_string_to_utf8 (field_name);
10143 klass = mono_class_from_mono_type (type->type);
10144 if (!mono_class_init (klass)) {
10145 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10149 while (klass && match_index == -1) {
10150 MonoClassField* field;
10152 gpointer iter = NULL;
10153 while ((field = mono_class_get_fields (klass, &iter))) {
10154 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10156 if (!strcmp (fname, mono_field_get_name (field))) {
10163 if (match_index == -1)
10164 klass = klass->parent;
10169 if(match_index == -1) {
10170 MonoException* exc;
10173 /* Get back original class instance */
10174 klass = mono_class_from_mono_type (type->type);
10176 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10177 exc = mono_get_exception_argument ("fieldName", tmp);
10180 mono_set_pending_exception ((MonoException*)exc);
10184 info = mono_marshal_load_type_info (klass);
10185 return info->fields [match_index].offset;
10189 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10194 tres = mono_string_to_utf8 (string);
10198 len = strlen (tres) + 1;
10199 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10200 memcpy (ret, tres, len);
10205 return mono_string_to_utf8 (string);
10210 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10212 if (string == NULL)
10215 #ifdef TARGET_WIN32
10216 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10217 ((mono_string_length (string) + 1) * 2);
10219 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10221 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10222 res [mono_string_length (string)] = 0;
10228 mono_struct_delete_old (MonoClass *klass, char *ptr)
10230 MonoMarshalType *info;
10233 info = mono_marshal_load_type_info (klass);
10235 for (i = 0; i < info->num_fields; i++) {
10236 MonoMarshalConv conv;
10237 MonoType *ftype = info->fields [i].field->type;
10240 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10243 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10244 klass->unicode, &conv);
10246 cpos = ptr + info->fields [i].offset;
10249 case MONO_MARSHAL_CONV_NONE:
10250 if (MONO_TYPE_ISSTRUCT (ftype)) {
10251 mono_struct_delete_old (ftype->data.klass, cpos);
10255 case MONO_MARSHAL_CONV_STR_LPWSTR:
10256 /* We assume this field points inside a MonoString */
10258 case MONO_MARSHAL_CONV_STR_LPTSTR:
10259 #ifdef TARGET_WIN32
10260 /* We assume this field points inside a MonoString
10264 case MONO_MARSHAL_CONV_STR_LPSTR:
10265 case MONO_MARSHAL_CONV_STR_BSTR:
10266 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10267 case MONO_MARSHAL_CONV_STR_TBSTR:
10268 mono_marshal_free (*(gpointer *)cpos);
10278 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10282 MONO_CHECK_ARG_NULL (src,);
10283 MONO_CHECK_ARG_NULL (type,);
10285 klass = mono_class_from_mono_type (type->type);
10286 if (!mono_class_init (klass)) {
10287 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10291 mono_struct_delete_old (klass, (char *)src);
10295 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10299 if ((gulong)size == 0)
10300 /* This returns a valid pointer for size 0 on MS.NET */
10304 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10306 res = g_try_malloc ((gulong)size);
10309 mono_gc_out_of_memory ((gulong)size);
10315 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10320 mono_gc_out_of_memory ((gulong)size);
10325 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10327 res = g_try_realloc (ptr, (gulong)size);
10330 mono_gc_out_of_memory ((gulong)size);
10336 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10346 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10351 res = CoTaskMemAlloc (size);
10353 res = g_try_malloc ((gulong)size);
10356 mono_gc_out_of_memory ((gulong)size);
10361 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10364 CoTaskMemFree (ptr);
10371 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10376 res = CoTaskMemRealloc (ptr, size);
10378 res = g_try_realloc (ptr, (gulong)size);
10381 mono_gc_out_of_memory ((gulong)size);
10386 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10388 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10392 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10394 MonoClass *klass = mono_type_get_class (type->type);
10395 if (!mono_class_init (klass)) {
10396 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10400 return mono_ftnptr_to_delegate (klass, ftn);
10404 * mono_marshal_is_loading_type_info:
10406 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10410 mono_marshal_is_loading_type_info (MonoClass *klass)
10412 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10414 return g_slist_find (loads_list, klass) != NULL;
10418 * mono_marshal_load_type_info:
10420 * Initialize klass->marshal_info using information from metadata. This function can
10421 * recursively call itself, and the caller is responsible to avoid that by calling
10422 * mono_marshal_is_loading_type_info () beforehand.
10424 * LOCKING: Acquires the loader lock.
10427 mono_marshal_load_type_info (MonoClass* klass)
10430 guint32 native_size = 0, min_align = 1, packing;
10431 MonoMarshalType *info;
10432 MonoClassField* field;
10435 GSList *loads_list;
10437 g_assert (klass != NULL);
10439 if (klass->marshal_info)
10440 return klass->marshal_info;
10442 if (!klass->inited)
10443 mono_class_init (klass);
10445 if (klass->marshal_info)
10446 return klass->marshal_info;
10449 * This function can recursively call itself, so we keep the list of classes which are
10450 * under initialization in a TLS list.
10452 g_assert (!mono_marshal_is_loading_type_info (klass));
10453 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10454 loads_list = g_slist_prepend (loads_list, klass);
10455 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10458 while ((field = mono_class_get_fields (klass, &iter))) {
10459 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10461 if (mono_field_is_deleted (field))
10466 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10468 /* The mempool is protected by the loader lock */
10469 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10470 info->num_fields = count;
10472 /* Try to find a size for this type in metadata */
10473 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10475 if (klass->parent) {
10476 int parent_size = mono_class_native_size (klass->parent, NULL);
10478 /* Add parent size to real size */
10479 native_size += parent_size;
10480 info->native_size = parent_size;
10483 packing = klass->packing_size ? klass->packing_size : 8;
10486 while ((field = mono_class_get_fields (klass, &iter))) {
10490 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10493 if (mono_field_is_deleted (field))
10495 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10496 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10497 NULL, NULL, &info->fields [j].mspec);
10499 info->fields [j].field = field;
10501 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10502 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10503 /* This field is a hack inserted by MCS to empty structures */
10508 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10509 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10510 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10511 &align, TRUE, klass->unicode);
10512 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10513 min_align = MAX (align, min_align);
10514 info->fields [j].offset = info->native_size;
10515 info->fields [j].offset += align - 1;
10516 info->fields [j].offset &= ~(align - 1);
10517 info->native_size = info->fields [j].offset + size;
10519 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10520 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10521 &align, TRUE, klass->unicode);
10522 min_align = MAX (align, min_align);
10523 info->fields [j].offset = field->offset - sizeof (MonoObject);
10524 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10530 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10531 info->native_size = MAX (native_size, info->native_size);
10533 * If the provided Size is equal or larger than the calculated size, and there
10534 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10536 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10537 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10540 min_align = MIN (min_align, packing);
10544 if (info->native_size & (min_align - 1)) {
10545 info->native_size += min_align - 1;
10546 info->native_size &= ~(min_align - 1);
10549 info->min_align = min_align;
10551 /* Update the class's blittable info, if the layouts don't match */
10552 if (info->native_size != mono_class_value_size (klass, NULL))
10553 klass->blittable = FALSE;
10555 /* If this is an array type, ensure that we have element info */
10556 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10557 mono_marshal_load_type_info (klass->element_class);
10560 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10561 loads_list = g_slist_remove (loads_list, klass);
10562 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10564 mono_marshal_lock ();
10565 if (!klass->marshal_info) {
10566 /*We do double-checking locking on marshal_info */
10567 mono_memory_barrier ();
10568 klass->marshal_info = info;
10570 mono_marshal_unlock ();
10572 return klass->marshal_info;
10576 * mono_class_native_size:
10579 * Returns: the native size of an object instance (when marshaled
10580 * to unmanaged code)
10583 mono_class_native_size (MonoClass *klass, guint32 *align)
10585 if (!klass->marshal_info) {
10586 if (mono_marshal_is_loading_type_info (klass)) {
10591 mono_marshal_load_type_info (klass);
10596 *align = klass->marshal_info->min_align;
10598 return klass->marshal_info->native_size;
10602 * mono_type_native_stack_size:
10603 * @t: the type to return the size it uses on the stack
10605 * Returns: the number of bytes required to hold an instance of this
10606 * type on the native stack
10609 mono_type_native_stack_size (MonoType *t, guint32 *align)
10613 g_assert (t != NULL);
10619 *align = sizeof (gpointer);
10620 return sizeof (gpointer);
10624 case MONO_TYPE_BOOLEAN:
10625 case MONO_TYPE_CHAR:
10636 case MONO_TYPE_STRING:
10637 case MONO_TYPE_OBJECT:
10638 case MONO_TYPE_CLASS:
10639 case MONO_TYPE_SZARRAY:
10640 case MONO_TYPE_PTR:
10641 case MONO_TYPE_FNPTR:
10642 case MONO_TYPE_ARRAY:
10643 *align = sizeof (gpointer);
10644 return sizeof (gpointer);
10649 *align = MONO_ABI_ALIGNOF (double);
10653 *align = MONO_ABI_ALIGNOF (gint64);
10655 case MONO_TYPE_GENERICINST:
10656 if (!mono_type_generic_inst_is_valuetype (t)) {
10657 *align = sizeof (gpointer);
10658 return sizeof (gpointer);
10661 case MONO_TYPE_TYPEDBYREF:
10662 case MONO_TYPE_VALUETYPE: {
10664 MonoClass *klass = mono_class_from_mono_type (t);
10666 if (klass->enumtype)
10667 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10669 size = mono_class_native_size (klass, align);
10670 *align = *align + 3;
10680 g_error ("type 0x%02x unknown", t->type);
10686 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10687 gboolean as_field, gboolean unicode)
10689 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10692 switch (native_type) {
10693 case MONO_NATIVE_BOOLEAN:
10696 case MONO_NATIVE_I1:
10697 case MONO_NATIVE_U1:
10700 case MONO_NATIVE_I2:
10701 case MONO_NATIVE_U2:
10702 case MONO_NATIVE_VARIANTBOOL:
10705 case MONO_NATIVE_I4:
10706 case MONO_NATIVE_U4:
10707 case MONO_NATIVE_ERROR:
10710 case MONO_NATIVE_I8:
10711 case MONO_NATIVE_U8:
10712 *align = MONO_ABI_ALIGNOF (gint64);
10714 case MONO_NATIVE_R4:
10717 case MONO_NATIVE_R8:
10718 *align = MONO_ABI_ALIGNOF (double);
10720 case MONO_NATIVE_INT:
10721 case MONO_NATIVE_UINT:
10722 case MONO_NATIVE_LPSTR:
10723 case MONO_NATIVE_LPWSTR:
10724 case MONO_NATIVE_LPTSTR:
10725 case MONO_NATIVE_BSTR:
10726 case MONO_NATIVE_ANSIBSTR:
10727 case MONO_NATIVE_TBSTR:
10728 case MONO_NATIVE_LPARRAY:
10729 case MONO_NATIVE_SAFEARRAY:
10730 case MONO_NATIVE_IUNKNOWN:
10731 case MONO_NATIVE_IDISPATCH:
10732 case MONO_NATIVE_INTERFACE:
10733 case MONO_NATIVE_ASANY:
10734 case MONO_NATIVE_FUNC:
10735 case MONO_NATIVE_LPSTRUCT:
10736 *align = MONO_ABI_ALIGNOF (gpointer);
10737 return sizeof (gpointer);
10738 case MONO_NATIVE_STRUCT:
10739 klass = mono_class_from_mono_type (type);
10740 if (klass == mono_defaults.object_class &&
10741 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10745 return mono_class_native_size (klass, align);
10746 case MONO_NATIVE_BYVALTSTR: {
10747 int esize = unicode ? 2: 1;
10750 return mspec->data.array_data.num_elem * esize;
10752 case MONO_NATIVE_BYVALARRAY: {
10753 // FIXME: Have to consider ArraySubType
10755 klass = mono_class_from_mono_type (type);
10756 if (klass->element_class == mono_defaults.char_class) {
10757 esize = unicode ? 2 : 1;
10760 esize = mono_class_native_size (klass->element_class, align);
10763 return mspec->data.array_data.num_elem * esize;
10765 case MONO_NATIVE_CUSTOM:
10766 *align = sizeof (gpointer);
10767 return sizeof (gpointer);
10769 case MONO_NATIVE_CURRENCY:
10770 case MONO_NATIVE_VBBYREFSTR:
10772 g_error ("native type %02x not implemented", native_type);
10775 g_assert_not_reached ();
10780 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10788 t = &o->vtable->klass->byval_arg;
10792 case MONO_TYPE_PTR:
10795 case MONO_TYPE_BOOLEAN:
10798 case MONO_TYPE_CHAR:
10803 return mono_object_unbox (o);
10805 case MONO_TYPE_STRING:
10806 switch (string_encoding) {
10807 case MONO_NATIVE_LPWSTR:
10808 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10810 case MONO_NATIVE_LPSTR:
10811 return mono_string_to_lpstr ((MonoString*)o);
10814 g_warning ("marshaling conversion %d not implemented", string_encoding);
10815 g_assert_not_reached ();
10818 case MONO_TYPE_CLASS:
10819 case MONO_TYPE_VALUETYPE: {
10820 MonoMethod *method;
10823 MonoBoolean delete_old = FALSE;
10825 klass = t->data.klass;
10827 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10830 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10831 klass->blittable || klass->enumtype))
10832 return mono_object_unbox (o);
10834 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10836 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10837 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10841 pa [2] = &delete_old;
10843 mono_runtime_invoke (method, NULL, pa, NULL);
10851 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10856 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10864 t = &o->vtable->klass->byval_arg;
10866 case MONO_TYPE_STRING:
10867 switch (string_encoding) {
10868 case MONO_NATIVE_LPWSTR:
10869 case MONO_NATIVE_LPSTR:
10870 mono_marshal_free (ptr);
10873 g_warning ("marshaling conversion %d not implemented", string_encoding);
10874 g_assert_not_reached ();
10877 case MONO_TYPE_CLASS:
10878 case MONO_TYPE_VALUETYPE: {
10879 klass = t->data.klass;
10881 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10882 klass->blittable || klass->enumtype))
10885 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10886 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10892 mono_runtime_invoke (method, NULL, pa, NULL);
10895 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10896 mono_struct_delete_old (klass, ptr);
10899 mono_marshal_free (ptr);
10908 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10910 MonoMethodSignature *sig, *csig;
10911 MonoMethodBuilder *mb;
10916 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10917 mb->method->slot = -1;
10919 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10920 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10922 sig = mono_method_signature (method);
10923 csig = signature_dup (method->klass->image, sig);
10924 csig->generic_param_count = 0;
10926 #ifndef DISABLE_JIT
10927 mono_mb_emit_ldarg (mb, 0);
10928 for (i = 0; i < csig->param_count; i++)
10929 mono_mb_emit_ldarg (mb, i + 1);
10930 mono_mb_emit_managed_call (mb, method, NULL);
10931 mono_mb_emit_byte (mb, CEE_RET);
10933 /* We can corlib internal methods */
10934 mb->skip_visibility = TRUE;
10936 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10937 info->d.generic_array_helper.method = method;
10938 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10946 * The mono_win32_compat_* functions are implementations of inline
10947 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10948 * although not exported by kernel32.
10950 * We map the appropiate kernel32 entries to these functions using
10951 * dllmaps declared in the global etc/mono/config.
10955 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10957 if (!dest || !source)
10960 memcpy (dest, source, length);
10964 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10966 memset (dest, fill, length);
10970 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10972 if (!dest || !source)
10975 memmove (dest, source, length);
10979 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10981 memset (dest, 0, length);
10985 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10990 for (i = 0; i < len; ++i)
10994 g_assert (i < len);
10997 while (byte && !(byte & 1))
10999 g_assert (byte == 1);
11002 *bitmask = buf [i];
11006 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11008 MonoMethodBuilder *mb;
11009 MonoMethodSignature *sig, *csig;
11010 MonoExceptionClause *clause;
11015 int i, param_count, sig_size, pos_leave;
11019 klass = method->klass;
11020 image = method->klass->image;
11021 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11023 if ((res = mono_marshal_find_in_cache (cache, method)))
11026 sig = mono_method_signature (method);
11027 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11029 /* add "this" and exception param */
11030 param_count = sig->param_count + sig->hasthis + 1;
11032 /* dup & extend signature */
11033 csig = mono_metadata_signature_alloc (image, param_count);
11034 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11035 memcpy (csig, sig, sig_size);
11036 csig->param_count = param_count;
11039 csig->call_convention = MONO_CALL_DEFAULT;
11041 if (sig->hasthis) {
11043 csig->params [0] = &klass->byval_arg;
11044 /* move params up by one */
11045 for (i = 0; i < sig->param_count; i++)
11046 csig->params [i + 1] = sig->params [i];
11049 /* setup exception param as byref+[out] */
11050 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11051 &mono_defaults.exception_class->byval_arg);
11052 csig->params [param_count - 1]->byref = 1;
11053 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11055 /* convert struct return to object */
11056 if (MONO_TYPE_ISSTRUCT (sig->ret))
11057 csig->ret = &mono_defaults.object_class->byval_arg;
11059 #ifndef DISABLE_JIT
11060 /* local 0 (temp for exception object) */
11061 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11063 /* local 1 (temp for result) */
11064 if (!MONO_TYPE_IS_VOID (sig->ret))
11065 mono_mb_add_local (mb, sig->ret);
11067 /* clear exception arg */
11068 mono_mb_emit_ldarg (mb, param_count - 1);
11069 mono_mb_emit_byte (mb, CEE_LDNULL);
11070 mono_mb_emit_byte (mb, CEE_STIND_REF);
11073 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11074 clause->try_offset = mono_mb_get_label (mb);
11076 /* push method's args */
11077 for (i = 0; i < param_count - 1; i++) {
11081 mono_mb_emit_ldarg (mb, i);
11083 /* get the byval type of the param */
11084 klass = mono_class_from_mono_type (csig->params [i]);
11085 type = &klass->byval_arg;
11087 /* unbox struct args */
11088 if (MONO_TYPE_ISSTRUCT (type)) {
11089 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11091 /* byref args & and the "this" arg must remain a ptr.
11092 Otherwise make a copy of the value type */
11093 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11094 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11096 csig->params [i] = &mono_defaults.object_class->byval_arg;
11101 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11102 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11104 mono_mb_emit_op (mb, CEE_CALL, method);
11106 /* save result at local 1 */
11107 if (!MONO_TYPE_IS_VOID (sig->ret))
11108 mono_mb_emit_stloc (mb, 1);
11110 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11113 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11114 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11115 clause->data.catch_class = mono_defaults.object_class;
11117 clause->handler_offset = mono_mb_get_label (mb);
11119 /* store exception at local 0 */
11120 mono_mb_emit_stloc (mb, 0);
11121 mono_mb_emit_ldarg (mb, param_count - 1);
11122 mono_mb_emit_ldloc (mb, 0);
11123 mono_mb_emit_byte (mb, CEE_STIND_REF);
11124 mono_mb_emit_branch (mb, CEE_LEAVE);
11126 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11128 mono_mb_set_clauses (mb, 1, clause);
11130 mono_mb_patch_branch (mb, pos_leave);
11133 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11134 mono_mb_emit_ldloc (mb, 1);
11136 /* box the return value */
11137 if (MONO_TYPE_ISSTRUCT (sig->ret))
11138 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11141 mono_mb_emit_byte (mb, CEE_RET);
11144 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11151 * mono_marshal_free_dynamic_wrappers:
11153 * Free wrappers of the dynamic method METHOD.
11156 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11158 MonoImage *image = method->klass->image;
11160 g_assert (method_is_dynamic (method));
11162 /* This could be called during shutdown */
11163 if (marshal_mutex_initialized)
11164 mono_marshal_lock ();
11166 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11167 * they could be shared with other methods ?
11169 if (image->runtime_invoke_direct_cache)
11170 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11171 if (image->delegate_abstract_invoke_cache)
11172 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11173 // FIXME: Need to clear the caches in other images as well
11174 if (image->delegate_bound_static_invoke_cache)
11175 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11177 if (marshal_mutex_initialized)
11178 mono_marshal_unlock ();
11182 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11184 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11185 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11187 return mono_metadata_signature_equal (pair->sig, sig);
11191 * mono_marshal_free_inflated_wrappers:
11193 * Free wrappers of the inflated method METHOD.
11196 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11198 MonoMethodSignature *sig = method->signature;
11200 g_assert (method->is_inflated);
11202 /* Ignore calls occuring late during cleanup. */
11203 if (!marshal_mutex_initialized)
11206 mono_marshal_lock ();
11208 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11209 * they could be shared with other methods ?
11213 * indexed by MonoMethodSignature
11215 /* FIXME: This could remove unrelated wrappers as well */
11216 if (sig && method->klass->image->delegate_begin_invoke_cache)
11217 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11218 if (sig && method->klass->image->delegate_end_invoke_cache)
11219 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11220 if (sig && method->klass->image->delegate_invoke_cache)
11221 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11222 if (sig && method->klass->image->runtime_invoke_cache)
11223 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11224 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11225 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11228 * indexed by SignaturePointerPair
11230 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11231 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11232 signature_pointer_pair_matches_signature, (gpointer)sig);
11235 * indexed by MonoMethod pointers
11237 if (method->klass->image->runtime_invoke_direct_cache)
11238 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11239 if (method->klass->image->managed_wrapper_cache)
11240 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11241 if (method->klass->image->native_wrapper_cache)
11242 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11243 if (method->klass->image->remoting_invoke_cache)
11244 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11245 if (method->klass->image->synchronized_cache)
11246 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11247 if (method->klass->image->unbox_wrapper_cache)
11248 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11249 if (method->klass->image->cominterop_invoke_cache)
11250 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11251 if (method->klass->image->cominterop_wrapper_cache)
11252 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11253 if (method->klass->image->thunk_invoke_cache)
11254 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11255 if (method->klass->image->native_func_wrapper_aot_cache)
11256 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11258 mono_marshal_unlock ();