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/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/metadata-internals.h"
31 #include "mono/metadata/domain-internals.h"
32 #include "mono/metadata/gc-internal.h"
33 #include "mono/metadata/threads-types.h"
34 #include "mono/metadata/string-icalls.h"
35 #include "mono/metadata/attrdefs.h"
36 #include "mono/metadata/gc-internal.h"
37 #include "mono/metadata/cominterop.h"
38 #include "mono/metadata/remoting.h"
39 #include "mono/metadata/reflection-internals.h"
40 #include "mono/metadata/threadpool-ms.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"
45 #include <mono/utils/mono-threads.h>
50 /* #define DEBUG_RUNTIME_CODE */
52 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
56 #include "mono/cil/opcode.def"
62 * This mutex protects the various marshalling related caches in MonoImage
63 * and a few other data structures static to this file.
65 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
66 * runtime locking latice. Which means it can take simple locks suck as the image lock.
68 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
69 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
70 static mono_mutex_t marshal_mutex;
71 static gboolean marshal_mutex_initialized;
73 static MonoNativeTlsKey last_error_tls_id;
75 static MonoNativeTlsKey load_type_info_tls_id;
77 static gboolean use_aot_wrappers;
80 delegate_hash_table_add (MonoDelegate *d);
83 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
86 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
89 mono_struct_delete_old (MonoClass *klass, char *ptr);
92 mono_marshal_string_to_utf16 (MonoString *s);
95 mono_marshal_string_to_utf16_copy (MonoString *s);
98 mono_string_to_lpstr (MonoString *string_obj);
100 static MonoStringBuilder *
101 mono_string_utf8_to_builder2 (char *text);
103 static MonoStringBuilder *
104 mono_string_utf16_to_builder2 (gunichar2 *text);
107 mono_string_new_len_wrapper (const char *text, guint length);
110 mono_string_from_byvalstr (const char *data, int len);
113 mono_string_from_byvalwstr (gunichar2 *data, int len);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
122 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
125 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
127 static MonoAsyncResult *
128 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_marshal_set_last_error_windows (int error);
137 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
139 static void init_safe_handle (void);
141 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
142 static MonoMethod *sh_dangerous_add_ref;
143 static MonoMethod *sh_dangerous_release;
149 sh_dangerous_add_ref = mono_class_get_method_from_name (
150 mono_defaults.safehandle_class, "DangerousAddRef", 1);
151 sh_dangerous_release = mono_class_get_method_from_name (
152 mono_defaults.safehandle_class, "DangerousRelease", 0);
156 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
158 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
160 mono_register_jit_icall (func, name, sig, save);
164 mono_signature_no_pinvoke (MonoMethod *method)
166 MonoMethodSignature *sig = mono_method_signature (method);
168 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
169 sig->pinvoke = FALSE;
176 mono_marshal_init_tls (void)
178 mono_native_tls_alloc (&last_error_tls_id, NULL);
179 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
183 mono_marshal_init (void)
185 static gboolean module_initialized = FALSE;
187 if (!module_initialized) {
188 module_initialized = TRUE;
189 mono_mutex_init_recursive (&marshal_mutex);
190 marshal_mutex_initialized = TRUE;
192 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
193 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
194 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
195 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
196 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
197 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
198 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
199 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
200 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
201 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
202 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
203 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
204 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
205 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
206 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
207 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
208 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
209 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
210 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
211 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
212 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
213 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
214 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
215 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
216 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
217 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
218 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
219 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
220 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
221 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
222 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
223 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
224 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
225 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
226 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
227 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
228 register_icall (g_free, "g_free", "void ptr", FALSE);
229 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
230 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
231 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
232 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
233 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
234 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
235 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
236 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
237 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
238 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
240 mono_cominterop_init ();
241 mono_remoting_init ();
244 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "int", FALSE);
245 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void int", FALSE);
246 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","int", FALSE);
247 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void int", FALSE);
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;
448 MonoObject *this_obj;
451 if (use_aot_wrappers) {
452 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
453 this_obj = 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_obj, mono_compile_method (wrapper), wrapper);
478 if (d->object.vtable->domain != mono_domain_get ())
479 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
485 mono_delegate_free_ftnptr (MonoDelegate *delegate)
490 delegate_hash_table_remove (delegate);
492 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
494 if (!delegate->target) {
495 /* The wrapper method is shared between delegates -> no need to free it */
504 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
507 method = mono_jit_info_get_method (ji);
508 method_data = ((MonoMethodWrapper*)method)->method_data;
510 /*the target gchandle is the first entry after size and the wrapper itself.*/
511 gchandle = GPOINTER_TO_UINT (method_data [2]);
514 mono_gchandle_free (gchandle);
516 mono_runtime_free_method (mono_object_domain (delegate), method);
521 mono_string_from_byvalstr (const char *data, int max_len)
523 MonoDomain *domain = mono_domain_get ();
529 while (len < max_len - 1 && data [len])
532 return mono_string_new_len (domain, data, len);
536 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
538 MonoDomain *domain = mono_domain_get ();
544 while (data [len]) len++;
546 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
550 mono_array_to_savearray (MonoArray *array)
555 g_assert_not_reached ();
560 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
574 klass = array->obj.vtable->klass;
576 switch (klass->element_class->byval_arg.type) {
578 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
587 case MONO_TYPE_BOOLEAN:
600 case MONO_TYPE_VALUETYPE:
604 case MONO_TYPE_GENERICINST:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_ARRAY:
607 case MONO_TYPE_SZARRAY:
608 case MONO_TYPE_STRING:
610 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
611 g_assert_not_reached ();
614 return array->vector;
618 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
629 klass = array->obj.vtable->klass;
631 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
632 for(i = 0; i < array->max_length; ++i)
633 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
640 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
642 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
644 if (elclass == mono_defaults.byte_class) {
645 GError *error = NULL;
649 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
652 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
656 g_error_free (error);
659 g_assert_not_reached ();
663 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
665 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
669 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
671 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
673 if (elclass == mono_defaults.byte_class) {
675 GError *error = NULL;
677 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
679 MonoException *exc = mono_get_exception_argument ("string", error->message);
680 g_error_free (error);
681 mono_raise_exception (exc);
684 memcpy (native_arr, as, MIN (strlen (as), elnum));
687 g_assert_not_reached ();
692 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
694 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
697 static MonoStringBuilder *
698 mono_string_builder_new (int starting_string_length)
700 static MonoClass *string_builder_class;
701 static MonoMethod *sb_ctor;
702 static void *args [1];
703 int initial_len = starting_string_length;
709 MonoMethodDesc *desc;
712 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
713 g_assert (string_builder_class);
714 desc = mono_method_desc_new (":.ctor(int)", FALSE);
715 m = mono_method_desc_search_in_class (desc, string_builder_class);
717 mono_method_desc_free (desc);
718 mono_memory_barrier ();
722 // We make a new array in the _to_builder function, so this
723 // array will always be garbage collected.
724 args [0] = &initial_len;
726 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
730 mono_runtime_invoke (sb_ctor, sb, args, &exc);
733 g_assert (sb->chunkChars->max_length >= initial_len);
739 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
741 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
742 gunichar2 *charSrc = (gunichar2 *)text;
743 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
745 sb->chunkLength = string_len;
751 mono_string_utf16_to_builder2 (gunichar2 *text)
757 for (len = 0; text [len] != 0; ++len);
759 MonoStringBuilder *sb = mono_string_builder_new (len);
760 mono_string_utf16_to_builder (sb, text);
766 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
771 int len = strlen (text);
772 if (len > mono_string_builder_capacity (sb))
773 len = mono_string_builder_capacity (sb);
775 GError *error = NULL;
777 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
780 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
781 mono_string_utf16_to_builder_copy (sb, ut, copied);
783 g_error_free (error);
789 mono_string_utf8_to_builder2 (char *text)
794 int len = strlen (text);
795 MonoStringBuilder *sb = mono_string_builder_new (len);
796 mono_string_utf8_to_builder (sb, text);
803 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
809 for (len = 0; text [len] != 0; ++len);
811 if (len > mono_string_builder_capacity (sb))
812 len = mono_string_builder_capacity (sb);
814 mono_string_utf16_to_builder_copy (sb, text, len);
818 * mono_string_builder_to_utf8:
819 * @sb: the string builder
821 * Converts to utf8 the contents of the MonoStringBuilder.
823 * Returns: a utf8 string with the contents of the StringBuilder.
825 * The return value must be released with g_free.
828 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
830 GError *error = NULL;
836 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
838 guint str_len = mono_string_builder_string_length (sb);
840 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
843 g_error_free (error);
845 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
848 guint len = mono_string_builder_capacity (sb) + 1;
849 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
850 g_assert (str_len < len);
851 memcpy (res, tmp, str_len * sizeof (gchar));
862 * mono_string_builder_to_utf16:
863 * @sb: the string builder
865 * Converts to utf16 the contents of the MonoStringBuilder.
867 * Returns: a utf16 string with the contents of the StringBuilder.
869 * The return value must not be freed.
872 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
877 g_assert (sb->chunkChars);
879 guint len = mono_string_builder_capacity (sb);
884 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
890 MonoStringBuilder* chunk = sb;
892 if (chunk->chunkLength > 0) {
893 // Check that we will not overrun our boundaries.
894 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
896 if (chunk->chunkLength <= len) {
897 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
899 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
902 len -= chunk->chunkLength;
904 chunk = chunk->chunkPrevious;
905 } while (chunk != NULL);
911 mono_string_to_lpstr (MonoString *s)
916 GError *error = NULL;
922 as = CoTaskMemAlloc (1);
927 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
929 MonoException *exc = mono_get_exception_argument ("string", error->message);
930 g_error_free (error);
931 mono_raise_exception(exc);
934 as = CoTaskMemAlloc (len + 1);
935 memcpy (as, tmp, len + 1);
940 return mono_string_to_utf8 (s);
945 mono_string_to_ansibstr (MonoString *string_obj)
947 g_error ("UnmanagedMarshal.BStr is not implemented.");
952 * mono_string_to_byvalstr:
953 * @dst: Where to store the null-terminated utf8 decoded string.
954 * @src: the MonoString to copy.
955 * @size: the maximum number of bytes to copy.
957 * Copies the MonoString pointed to by @src as a utf8 string
958 * into @dst, it copies at most @size bytes into the destination.
961 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
966 g_assert (dst != NULL);
969 memset (dst, 0, size);
973 s = mono_string_to_utf8 (src);
974 len = MIN (size, strlen (s));
977 memcpy (dst, s, len);
982 * mono_string_to_byvalwstr:
983 * @dst: Where to store the null-terminated utf16 decoded string.
984 * @src: the MonoString to copy.
985 * @size: the maximum number of bytes to copy.
987 * Copies the MonoString pointed to by @src as a utf16 string into
988 * @dst, it copies at most @size bytes into the destination (including
989 * a terminating 16-bit zero terminator).
992 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
996 g_assert (dst != NULL);
1000 memset (dst, 0, size * 2);
1004 len = MIN (size, (mono_string_length (src)));
1005 memcpy (dst, mono_string_chars (src), size * 2);
1006 if (size <= mono_string_length (src))
1008 *((gunichar2 *) dst + len) = 0;
1012 mono_string_new_len_wrapper (const char *text, guint length)
1014 return mono_string_new_len (mono_domain_get (), text, length);
1020 * mono_mb_emit_exception_marshal_directive:
1022 * This function assumes ownership of MSG, which should be malloc-ed.
1025 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1030 s = mono_image_strdup (mb->method->klass->image, msg);
1035 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1038 #endif /* !DISABLE_JIT */
1041 mono_type_to_ldind (MonoType *type)
1047 switch (type->type) {
1049 return CEE_LDIND_I1;
1051 case MONO_TYPE_BOOLEAN:
1052 return CEE_LDIND_U1;
1054 return CEE_LDIND_I2;
1056 case MONO_TYPE_CHAR:
1057 return CEE_LDIND_U2;
1059 return CEE_LDIND_I4;
1061 return CEE_LDIND_U4;
1065 case MONO_TYPE_FNPTR:
1067 case MONO_TYPE_CLASS:
1068 case MONO_TYPE_STRING:
1069 case MONO_TYPE_OBJECT:
1070 case MONO_TYPE_SZARRAY:
1071 case MONO_TYPE_ARRAY:
1072 return CEE_LDIND_REF;
1075 return CEE_LDIND_I8;
1077 return CEE_LDIND_R4;
1079 return CEE_LDIND_R8;
1080 case MONO_TYPE_VALUETYPE:
1081 if (type->data.klass->enumtype) {
1082 type = mono_class_enum_basetype (type->data.klass);
1086 case MONO_TYPE_TYPEDBYREF:
1088 case MONO_TYPE_GENERICINST:
1089 type = &type->data.generic_class->container_class->byval_arg;
1092 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1098 mono_type_to_stind (MonoType *type)
1104 switch (type->type) {
1107 case MONO_TYPE_BOOLEAN:
1108 return CEE_STIND_I1;
1111 case MONO_TYPE_CHAR:
1112 return CEE_STIND_I2;
1115 return CEE_STIND_I4;
1119 case MONO_TYPE_FNPTR:
1121 case MONO_TYPE_CLASS:
1122 case MONO_TYPE_STRING:
1123 case MONO_TYPE_OBJECT:
1124 case MONO_TYPE_SZARRAY:
1125 case MONO_TYPE_ARRAY:
1126 return CEE_STIND_REF;
1129 return CEE_STIND_I8;
1131 return CEE_STIND_R4;
1133 return CEE_STIND_R8;
1134 case MONO_TYPE_VALUETYPE:
1135 if (type->data.klass->enumtype) {
1136 type = mono_class_enum_basetype (type->data.klass);
1140 case MONO_TYPE_TYPEDBYREF:
1142 case MONO_TYPE_GENERICINST:
1143 type = &type->data.generic_class->container_class->byval_arg;
1146 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1154 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1157 case MONO_MARSHAL_CONV_BOOL_I4:
1158 mono_mb_emit_ldloc (mb, 1);
1159 mono_mb_emit_ldloc (mb, 0);
1160 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1161 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1162 mono_mb_emit_byte (mb, 3);
1163 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1164 mono_mb_emit_byte (mb, CEE_BR_S);
1165 mono_mb_emit_byte (mb, 1);
1166 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1167 mono_mb_emit_byte (mb, CEE_STIND_I1);
1169 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1170 mono_mb_emit_ldloc (mb, 1);
1171 mono_mb_emit_ldloc (mb, 0);
1172 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1173 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1174 mono_mb_emit_byte (mb, 3);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1176 mono_mb_emit_byte (mb, CEE_BR_S);
1177 mono_mb_emit_byte (mb, 1);
1178 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1179 mono_mb_emit_byte (mb, CEE_STIND_I1);
1181 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1182 MonoClass *eklass = NULL;
1185 if (type->type == MONO_TYPE_SZARRAY) {
1186 eklass = type->data.klass;
1188 g_assert_not_reached ();
1191 esize = mono_class_native_size (eklass, NULL);
1193 /* create a new array */
1194 mono_mb_emit_ldloc (mb, 1);
1195 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1196 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1197 mono_mb_emit_byte (mb, CEE_STIND_I);
1199 if (eklass->blittable) {
1200 /* copy the elements */
1201 mono_mb_emit_ldloc (mb, 1);
1202 mono_mb_emit_byte (mb, CEE_LDIND_I);
1203 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1204 mono_mb_emit_byte (mb, CEE_ADD);
1205 mono_mb_emit_ldloc (mb, 0);
1206 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1207 mono_mb_emit_byte (mb, CEE_PREFIX1);
1208 mono_mb_emit_byte (mb, CEE_CPBLK);
1211 int array_var, src_var, dst_var, index_var;
1212 guint32 label2, label3;
1214 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1215 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1216 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1219 mono_mb_emit_ldloc (mb, 1);
1220 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1221 mono_mb_emit_stloc (mb, array_var);
1223 /* save the old src pointer */
1224 mono_mb_emit_ldloc (mb, 0);
1225 mono_mb_emit_stloc (mb, src_var);
1226 /* save the old dst pointer */
1227 mono_mb_emit_ldloc (mb, 1);
1228 mono_mb_emit_stloc (mb, dst_var);
1230 /* Emit marshalling loop */
1231 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1232 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1233 mono_mb_emit_stloc (mb, index_var);
1236 label2 = mono_mb_get_label (mb);
1237 mono_mb_emit_ldloc (mb, index_var);
1238 mono_mb_emit_ldloc (mb, array_var);
1239 mono_mb_emit_byte (mb, CEE_LDLEN);
1240 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1242 /* src is already set */
1245 mono_mb_emit_ldloc (mb, array_var);
1246 mono_mb_emit_ldloc (mb, index_var);
1247 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1248 mono_mb_emit_stloc (mb, 1);
1250 /* Do the conversion */
1251 emit_struct_conv (mb, eklass, TRUE);
1254 mono_mb_emit_add_to_local (mb, index_var, 1);
1256 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1258 mono_mb_patch_branch (mb, label3);
1260 /* restore the old src pointer */
1261 mono_mb_emit_ldloc (mb, src_var);
1262 mono_mb_emit_stloc (mb, 0);
1263 /* restore the old dst pointer */
1264 mono_mb_emit_ldloc (mb, dst_var);
1265 mono_mb_emit_stloc (mb, 1);
1269 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1270 MonoClass *eclass = mono_defaults.char_class;
1272 /* create a new array */
1273 mono_mb_emit_ldloc (mb, 1);
1274 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1275 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1276 mono_mb_emit_byte (mb, CEE_STIND_REF);
1278 mono_mb_emit_ldloc (mb, 1);
1279 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1280 mono_mb_emit_ldloc (mb, 0);
1281 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1282 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1285 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1286 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1287 mono_mb_emit_ldloc (mb, 1);
1288 mono_mb_emit_ldloc (mb, 0);
1289 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1290 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1292 mono_mb_emit_ldloc (mb, 1);
1293 mono_mb_emit_ldloc (mb, 0);
1294 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1296 mono_mb_emit_byte (mb, CEE_STIND_REF);
1298 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1299 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1300 mono_mb_emit_ldloc (mb, 1);
1301 mono_mb_emit_ldloc (mb, 0);
1302 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1303 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_ldloc (mb, 0);
1307 mono_mb_emit_icall (mb, mono_string_from_utf16);
1309 mono_mb_emit_byte (mb, CEE_STIND_REF);
1311 case MONO_MARSHAL_CONV_STR_LPTSTR:
1312 mono_mb_emit_ldloc (mb, 1);
1313 mono_mb_emit_ldloc (mb, 0);
1314 mono_mb_emit_byte (mb, CEE_LDIND_I);
1316 mono_mb_emit_icall (mb, mono_string_from_utf16);
1318 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1320 mono_mb_emit_byte (mb, CEE_STIND_REF);
1322 case MONO_MARSHAL_CONV_STR_LPSTR:
1323 mono_mb_emit_ldloc (mb, 1);
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_byte (mb, CEE_LDIND_I);
1326 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1327 mono_mb_emit_byte (mb, CEE_STIND_REF);
1329 case MONO_MARSHAL_CONV_STR_LPWSTR:
1330 mono_mb_emit_ldloc (mb, 1);
1331 mono_mb_emit_ldloc (mb, 0);
1332 mono_mb_emit_byte (mb, CEE_LDIND_I);
1333 mono_mb_emit_icall (mb, mono_string_from_utf16);
1334 mono_mb_emit_byte (mb, CEE_STIND_REF);
1336 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1337 MonoClass *klass = mono_class_from_mono_type (type);
1338 int src_var, dst_var;
1340 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1341 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1343 /* *dst = new object */
1344 mono_mb_emit_ldloc (mb, 1);
1345 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1346 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 /* save the old src pointer */
1350 mono_mb_emit_ldloc (mb, 0);
1351 mono_mb_emit_stloc (mb, src_var);
1352 /* save the old dst pointer */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_stloc (mb, dst_var);
1356 /* dst = pointer to newly created object data */
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_byte (mb, CEE_LDIND_I);
1359 mono_mb_emit_icon (mb, sizeof (MonoObject));
1360 mono_mb_emit_byte (mb, CEE_ADD);
1361 mono_mb_emit_stloc (mb, 1);
1363 emit_struct_conv (mb, klass, TRUE);
1365 /* restore the old src pointer */
1366 mono_mb_emit_ldloc (mb, src_var);
1367 mono_mb_emit_stloc (mb, 0);
1368 /* restore the old dst pointer */
1369 mono_mb_emit_ldloc (mb, dst_var);
1370 mono_mb_emit_stloc (mb, 1);
1373 case MONO_MARSHAL_CONV_DEL_FTN: {
1374 MonoClass *klass = mono_class_from_mono_type (type);
1376 mono_mb_emit_ldloc (mb, 1);
1377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1378 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1379 mono_mb_emit_ldloc (mb, 0);
1380 mono_mb_emit_byte (mb, CEE_LDIND_I);
1381 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1382 mono_mb_emit_byte (mb, CEE_STIND_REF);
1385 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1386 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1390 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1391 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1392 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1393 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1395 #endif /* DISABLE_COM */
1397 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1399 * Passing SafeHandles as ref does not allow the unmanaged code
1400 * to change the SafeHandle value. If the value is changed,
1401 * we should issue a diagnostic exception (NotSupportedException)
1402 * that informs the user that changes to handles in unmanaged code
1405 * Since we currently have no access to the original
1406 * SafeHandle that was used during the marshalling,
1407 * for now we just ignore this, and ignore/discard any
1408 * changes that might have happened to the handle.
1413 case MONO_MARSHAL_CONV_HANDLEREF: {
1415 * Passing HandleRefs in a struct that is ref()ed does not
1416 * copy the values back to the HandleRef
1421 case MONO_MARSHAL_CONV_STR_BSTR:
1422 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1423 case MONO_MARSHAL_CONV_STR_TBSTR:
1424 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1426 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1428 mono_mb_emit_exception_marshal_directive (mb, msg);
1435 conv_to_icall (MonoMarshalConv conv)
1438 case MONO_MARSHAL_CONV_STR_LPWSTR:
1439 return mono_marshal_string_to_utf16;
1440 case MONO_MARSHAL_CONV_LPWSTR_STR:
1441 return mono_string_from_utf16;
1442 case MONO_MARSHAL_CONV_LPTSTR_STR:
1443 return mono_string_new_wrapper;
1444 case MONO_MARSHAL_CONV_LPSTR_STR:
1445 return mono_string_new_wrapper;
1446 case MONO_MARSHAL_CONV_STR_LPTSTR:
1448 return mono_marshal_string_to_utf16;
1450 return mono_string_to_lpstr;
1452 case MONO_MARSHAL_CONV_STR_LPSTR:
1453 return mono_string_to_lpstr;
1454 case MONO_MARSHAL_CONV_STR_BSTR:
1455 return mono_string_to_bstr;
1456 case MONO_MARSHAL_CONV_BSTR_STR:
1457 return mono_string_from_bstr;
1458 case MONO_MARSHAL_CONV_STR_TBSTR:
1459 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1460 return mono_string_to_ansibstr;
1461 case MONO_MARSHAL_CONV_SB_LPSTR:
1462 return mono_string_builder_to_utf8;
1463 case MONO_MARSHAL_CONV_SB_LPTSTR:
1465 return mono_string_builder_to_utf16;
1467 return mono_string_builder_to_utf8;
1469 case MONO_MARSHAL_CONV_SB_LPWSTR:
1470 return mono_string_builder_to_utf16;
1471 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1472 return mono_array_to_savearray;
1473 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1474 return mono_array_to_lparray;
1475 case MONO_MARSHAL_FREE_LPARRAY:
1476 return mono_free_lparray;
1477 case MONO_MARSHAL_CONV_DEL_FTN:
1478 return mono_delegate_to_ftnptr;
1479 case MONO_MARSHAL_CONV_FTN_DEL:
1480 return mono_ftnptr_to_delegate;
1481 case MONO_MARSHAL_CONV_LPSTR_SB:
1482 return mono_string_utf8_to_builder;
1483 case MONO_MARSHAL_CONV_LPTSTR_SB:
1485 return mono_string_utf16_to_builder;
1487 return mono_string_utf8_to_builder;
1489 case MONO_MARSHAL_CONV_LPWSTR_SB:
1490 return mono_string_utf16_to_builder;
1491 case MONO_MARSHAL_FREE_ARRAY:
1492 return mono_marshal_free_array;
1493 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1494 return mono_string_to_byvalstr;
1495 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1496 return mono_string_to_byvalwstr;
1498 g_assert_not_reached ();
1505 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1510 case MONO_MARSHAL_CONV_BOOL_I4:
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_ldloc (mb, 0);
1513 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1514 mono_mb_emit_byte (mb, CEE_STIND_I4);
1516 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_ldloc (mb, 0);
1519 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1520 mono_mb_emit_byte (mb, CEE_NEG);
1521 mono_mb_emit_byte (mb, CEE_STIND_I2);
1523 case MONO_MARSHAL_CONV_STR_LPWSTR:
1524 case MONO_MARSHAL_CONV_STR_LPSTR:
1525 case MONO_MARSHAL_CONV_STR_LPTSTR:
1526 case MONO_MARSHAL_CONV_STR_BSTR:
1527 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1528 case MONO_MARSHAL_CONV_STR_TBSTR: {
1531 /* free space if free == true */
1532 mono_mb_emit_ldloc (mb, 2);
1533 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1534 mono_mb_emit_ldloc (mb, 1);
1535 mono_mb_emit_byte (mb, CEE_LDIND_I);
1536 mono_mb_emit_icall (mb, g_free);
1537 mono_mb_patch_short_branch (mb, pos);
1539 mono_mb_emit_ldloc (mb, 1);
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1542 mono_mb_emit_icall (mb, conv_to_icall (conv));
1543 mono_mb_emit_byte (mb, CEE_STIND_I);
1546 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1547 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1548 case MONO_MARSHAL_CONV_DEL_FTN:
1549 mono_mb_emit_ldloc (mb, 1);
1550 mono_mb_emit_ldloc (mb, 0);
1551 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1552 mono_mb_emit_icall (mb, conv_to_icall (conv));
1553 mono_mb_emit_byte (mb, CEE_STIND_I);
1555 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1556 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1559 mono_mb_emit_ldloc (mb, 1); /* dst */
1560 mono_mb_emit_ldloc (mb, 0);
1561 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1562 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1563 mono_mb_emit_icall (mb, conv_to_icall (conv));
1566 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1567 MonoClass *eklass = NULL;
1570 if (type->type == MONO_TYPE_SZARRAY) {
1571 eklass = type->data.klass;
1573 g_assert_not_reached ();
1576 if (eklass->valuetype)
1577 esize = mono_class_native_size (eklass, NULL);
1579 esize = sizeof (gpointer);
1581 mono_mb_emit_ldloc (mb, 0);
1582 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1583 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1585 if (eklass->blittable) {
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_ldloc (mb, 0);
1588 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1589 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1590 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1591 mono_mb_emit_byte (mb, CEE_PREFIX1);
1592 mono_mb_emit_byte (mb, CEE_CPBLK);
1594 int array_var, src_var, dst_var, index_var;
1595 guint32 label2, label3;
1597 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1598 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1599 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1602 mono_mb_emit_ldloc (mb, 0);
1603 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1604 mono_mb_emit_stloc (mb, array_var);
1606 /* save the old src pointer */
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_stloc (mb, src_var);
1609 /* save the old dst pointer */
1610 mono_mb_emit_ldloc (mb, 1);
1611 mono_mb_emit_stloc (mb, dst_var);
1613 /* Emit marshalling loop */
1614 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1615 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1616 mono_mb_emit_stloc (mb, index_var);
1619 label2 = mono_mb_get_label (mb);
1620 mono_mb_emit_ldloc (mb, index_var);
1621 mono_mb_emit_ldloc (mb, array_var);
1622 mono_mb_emit_byte (mb, CEE_LDLEN);
1623 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1626 mono_mb_emit_ldloc (mb, array_var);
1627 mono_mb_emit_ldloc (mb, index_var);
1628 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1629 mono_mb_emit_stloc (mb, 0);
1631 /* dst is already set */
1633 /* Do the conversion */
1634 emit_struct_conv (mb, eklass, FALSE);
1637 mono_mb_emit_add_to_local (mb, index_var, 1);
1639 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1641 mono_mb_patch_branch (mb, label3);
1643 /* restore the old src pointer */
1644 mono_mb_emit_ldloc (mb, src_var);
1645 mono_mb_emit_stloc (mb, 0);
1646 /* restore the old dst pointer */
1647 mono_mb_emit_ldloc (mb, dst_var);
1648 mono_mb_emit_stloc (mb, 1);
1651 mono_mb_patch_branch (mb, pos);
1654 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1655 mono_mb_emit_ldloc (mb, 0);
1656 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1657 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1659 mono_mb_emit_ldloc (mb, 1);
1660 mono_mb_emit_ldloc (mb, 0);
1661 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1662 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1663 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1664 mono_mb_patch_short_branch (mb, pos);
1667 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1668 int src_var, dst_var;
1670 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1671 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1673 mono_mb_emit_ldloc (mb, 0);
1674 mono_mb_emit_byte (mb, CEE_LDIND_I);
1675 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1677 /* save the old src pointer */
1678 mono_mb_emit_ldloc (mb, 0);
1679 mono_mb_emit_stloc (mb, src_var);
1680 /* save the old dst pointer */
1681 mono_mb_emit_ldloc (mb, 1);
1682 mono_mb_emit_stloc (mb, dst_var);
1684 /* src = pointer to object data */
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_I);
1687 mono_mb_emit_icon (mb, sizeof (MonoObject));
1688 mono_mb_emit_byte (mb, CEE_ADD);
1689 mono_mb_emit_stloc (mb, 0);
1691 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1693 /* restore the old src pointer */
1694 mono_mb_emit_ldloc (mb, src_var);
1695 mono_mb_emit_stloc (mb, 0);
1696 /* restore the old dst pointer */
1697 mono_mb_emit_ldloc (mb, dst_var);
1698 mono_mb_emit_stloc (mb, 1);
1700 mono_mb_patch_branch (mb, pos);
1705 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1706 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1707 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1708 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1710 #endif /* DISABLE_COM */
1712 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_byte (mb, CEE_LDIND_I);
1717 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1718 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1719 mono_mb_patch_branch (mb, pos);
1721 /* Pull the handle field from SafeHandle */
1722 mono_mb_emit_ldloc (mb, 1);
1723 mono_mb_emit_ldloc (mb, 0);
1724 mono_mb_emit_byte (mb, CEE_LDIND_I);
1725 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1726 mono_mb_emit_byte (mb, CEE_LDIND_I);
1727 mono_mb_emit_byte (mb, CEE_STIND_I);
1731 case MONO_MARSHAL_CONV_HANDLEREF: {
1732 mono_mb_emit_ldloc (mb, 1);
1733 mono_mb_emit_ldloc (mb, 0);
1734 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1735 mono_mb_emit_byte (mb, CEE_ADD);
1736 mono_mb_emit_byte (mb, CEE_LDIND_I);
1737 mono_mb_emit_byte (mb, CEE_STIND_I);
1742 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1743 MonoException *exc = mono_get_exception_not_implemented (msg);
1744 g_warning ("%s", msg);
1746 mono_raise_exception (exc);
1752 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1753 MonoMarshalNative string_encoding)
1755 MonoMarshalType *info;
1759 emit_struct_conv(mb, klass->parent, to_object);
1761 info = mono_marshal_load_type_info (klass);
1763 if (info->native_size == 0)
1766 if (klass->blittable) {
1767 int msize = mono_class_value_size (klass, NULL);
1768 g_assert (msize == info->native_size);
1769 mono_mb_emit_ldloc (mb, 1);
1770 mono_mb_emit_ldloc (mb, 0);
1771 mono_mb_emit_icon (mb, msize);
1772 mono_mb_emit_byte (mb, CEE_PREFIX1);
1773 mono_mb_emit_byte (mb, CEE_CPBLK);
1775 mono_mb_emit_add_to_local (mb, 0, msize);
1776 mono_mb_emit_add_to_local (mb, 1, msize);
1780 if (klass != mono_defaults.safehandle_class) {
1781 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1782 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1783 mono_type_full_name (&klass->byval_arg));
1784 mono_mb_emit_exception_marshal_directive (mb, msg);
1789 for (i = 0; i < info->num_fields; i++) {
1790 MonoMarshalNative ntype;
1791 MonoMarshalConv conv;
1792 MonoType *ftype = info->fields [i].field->type;
1795 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1797 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1800 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1803 msize = klass->instance_size - info->fields [i].field->offset;
1804 usize = info->native_size - info->fields [i].offset;
1806 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1807 usize = info->fields [i + 1].offset - info->fields [i].offset;
1810 if (klass != mono_defaults.safehandle_class){
1812 * FIXME: Should really check for usize==0 and msize>0, but we apply
1813 * the layout to the managed structure as well.
1816 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1817 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1818 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1819 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1820 "reference field at the same offset as another field.",
1821 mono_type_full_name (&klass->byval_arg));
1826 case MONO_MARSHAL_CONV_NONE: {
1829 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1830 ftype->type == MONO_TYPE_U) {
1831 mono_mb_emit_ldloc (mb, 1);
1832 mono_mb_emit_ldloc (mb, 0);
1833 mono_mb_emit_byte (mb, CEE_LDIND_I);
1834 mono_mb_emit_byte (mb, CEE_STIND_I);
1845 case MONO_TYPE_BOOLEAN:
1848 case MONO_TYPE_CHAR:
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_ldloc (mb, 0);
1856 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1858 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1859 mono_mb_emit_byte (mb, CEE_STIND_I2);
1861 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1862 mono_mb_emit_byte (mb, CEE_STIND_I1);
1865 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1866 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1869 case MONO_TYPE_VALUETYPE: {
1870 int src_var, dst_var;
1872 if (ftype->data.klass->enumtype) {
1873 ftype = mono_class_enum_basetype (ftype->data.klass);
1877 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1878 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1880 /* save the old src pointer */
1881 mono_mb_emit_ldloc (mb, 0);
1882 mono_mb_emit_stloc (mb, src_var);
1883 /* save the old dst pointer */
1884 mono_mb_emit_ldloc (mb, 1);
1885 mono_mb_emit_stloc (mb, dst_var);
1887 emit_struct_conv (mb, ftype->data.klass, to_object);
1889 /* restore the old src pointer */
1890 mono_mb_emit_ldloc (mb, src_var);
1891 mono_mb_emit_stloc (mb, 0);
1892 /* restore the old dst pointer */
1893 mono_mb_emit_ldloc (mb, dst_var);
1894 mono_mb_emit_stloc (mb, 1);
1897 case MONO_TYPE_OBJECT: {
1900 static MonoMethod *variant_clear = NULL;
1901 static MonoMethod *get_object_for_native_variant = NULL;
1904 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1905 if (!get_object_for_native_variant)
1906 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1907 mono_mb_emit_ldloc (mb, 1);
1908 mono_mb_emit_ldloc (mb, 0);
1909 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1910 mono_mb_emit_byte (mb, CEE_STIND_REF);
1912 mono_mb_emit_ldloc (mb, 0);
1913 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1916 static MonoMethod *get_native_variant_for_object = NULL;
1918 if (!get_native_variant_for_object)
1919 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1921 mono_mb_emit_ldloc (mb, 0);
1922 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1923 mono_mb_emit_ldloc (mb, 1);
1924 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1927 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1928 mono_mb_emit_exception_marshal_directive (mb, msg);
1934 g_warning ("marshaling type %02x not implemented", ftype->type);
1935 g_assert_not_reached ();
1940 int src_var, dst_var;
1942 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1943 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1945 /* save the old src pointer */
1946 mono_mb_emit_ldloc (mb, 0);
1947 mono_mb_emit_stloc (mb, src_var);
1948 /* save the old dst pointer */
1949 mono_mb_emit_ldloc (mb, 1);
1950 mono_mb_emit_stloc (mb, dst_var);
1953 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1955 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1957 /* restore the old src pointer */
1958 mono_mb_emit_ldloc (mb, src_var);
1959 mono_mb_emit_stloc (mb, 0);
1960 /* restore the old dst pointer */
1961 mono_mb_emit_ldloc (mb, dst_var);
1962 mono_mb_emit_stloc (mb, 1);
1967 mono_mb_emit_add_to_local (mb, 0, usize);
1968 mono_mb_emit_add_to_local (mb, 1, msize);
1970 mono_mb_emit_add_to_local (mb, 0, msize);
1971 mono_mb_emit_add_to_local (mb, 1, usize);
1977 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1979 emit_struct_conv_full (mb, klass, to_object, -1);
1983 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1985 /* Call DestroyStructure */
1986 /* FIXME: Only do this if needed */
1987 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1988 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1989 mono_mb_emit_ldloc (mb, struct_var);
1990 mono_mb_emit_icall (mb, mono_struct_delete_old);
1994 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1996 int pos_noabort, pos_noex;
1998 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1999 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2000 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2001 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2003 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2004 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2006 mono_mb_emit_icall (mb, checkpoint_func);
2007 /* Throw the exception returned by the checkpoint function, if any */
2008 mono_mb_emit_byte (mb, CEE_DUP);
2009 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2010 mono_mb_emit_byte (mb, CEE_THROW);
2011 mono_mb_patch_branch (mb, pos_noex);
2012 mono_mb_emit_byte (mb, CEE_POP);
2014 mono_mb_patch_branch (mb, pos_noabort);
2018 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2020 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2023 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2027 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2029 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2033 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2035 emit_thread_interrupt_checkpoint (mb);
2039 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2041 emit_thread_force_interrupt_checkpoint (mb);
2044 #endif /* DISABLE_JIT */
2046 static MonoAsyncResult *
2047 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2049 MonoMulticastDelegate *mcast_delegate;
2053 g_assert (delegate);
2054 mcast_delegate = (MonoMulticastDelegate *) delegate;
2055 if (mcast_delegate->delegates != NULL)
2056 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2058 #ifndef DISABLE_REMOTING
2059 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2061 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2062 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2064 /* If the target is a proxy, make a direct call. Is proxy's work
2065 // to make the call asynchronous.
2067 MonoMethodMessage *msg;
2068 MonoDelegate *async_callback;
2070 MonoAsyncResult *ares;
2072 MonoArray *out_args;
2073 method = delegate->method;
2075 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2076 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2077 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2078 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2079 MONO_OBJECT_SETREF (msg, async_result, ares);
2080 msg->call_type = CallType_BeginInvoke;
2083 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2085 mono_raise_exception ((MonoException *) exc);
2091 klass = delegate->object.vtable->klass;
2093 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2095 method = mono_get_delegate_invoke (klass);
2098 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
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_threadpool_ms_end_invoke (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_i, local_len, local_delegates, local_d, local_target, local_res;
3022 int pos0, pos1, pos2;
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;
3034 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3035 !strcmp (method->name, "Invoke"));
3037 invoke_sig = sig = mono_signature_no_pinvoke (method);
3040 * If the delegate target is null, and the target method is not static, a virtual
3041 * call is made to that method with the first delegate argument as this. This is
3042 * a non-documented .NET feature.
3045 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3046 if (target_method->is_inflated) {
3047 MonoType *target_type;
3049 g_assert (method->signature->hasthis);
3050 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3051 mono_method_get_context (method));
3052 target_class = mono_class_from_mono_type (target_type);
3054 target_class = target_method->klass;
3057 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3060 if (static_method_with_first_arg_bound) {
3061 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3062 g_assert (!callvirt);
3063 invoke_sig = mono_method_signature (target_method);
3067 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3069 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3070 orig_method = method;
3071 ctx = &((MonoMethodInflated*)method)->context;
3072 method = ((MonoMethodInflated*)method)->declaring;
3074 container = mono_method_get_generic_container (method);
3076 container = method->klass->generic_container;
3077 g_assert (container);
3079 invoke_sig = sig = mono_signature_no_pinvoke (method);
3086 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3087 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3090 cache_key = method->klass;
3091 } else if (static_method_with_first_arg_bound) {
3092 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3093 (GHashFunc)mono_signature_hash,
3094 (GCompareFunc)mono_metadata_signature_equal);
3096 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3098 res = mono_marshal_find_in_cache (cache, invoke_sig);
3101 cache_key = invoke_sig;
3102 } else if (callvirt) {
3103 GHashTable **cache_ptr;
3105 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3107 /* We need to cache the signature+method pair */
3108 mono_marshal_lock ();
3110 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3112 key.sig = invoke_sig;
3113 key.pointer = target_method;
3114 res = g_hash_table_lookup (cache, &key);
3115 mono_marshal_unlock ();
3119 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3120 (GHashFunc)mono_signature_hash,
3121 (GCompareFunc)mono_metadata_signature_equal);
3122 res = mono_marshal_find_in_cache (cache, sig);
3128 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3129 static_sig->hasthis = 0;
3130 if (!static_method_with_first_arg_bound)
3131 invoke_sig = static_sig;
3133 if (static_method_with_first_arg_bound)
3134 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3135 else if (closed_over_null)
3136 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3138 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3140 name = mono_signature_to_name (invoke_sig, "invoke");
3142 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3144 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3148 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3150 /* allocate local 0 (object) */
3151 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3152 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3153 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3154 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3155 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3158 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3160 g_assert (sig->hasthis);
3163 * {type: sig->ret} res;
3164 * if (delegates == null) {
3165 * return this.<target> ( args .. );
3167 * int i = 0, len = this.delegates.Length;
3169 * res = this.delegates [i].Invoke ( args .. );
3170 * } while (++i < len);
3175 /* this wrapper can be used in unmanaged-managed transitions */
3176 emit_thread_interrupt_checkpoint (mb);
3178 /* delegates = this.delegates */
3179 mono_mb_emit_ldarg (mb, 0);
3180 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3181 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3182 mono_mb_emit_stloc (mb, local_delegates);
3185 /* if (delegates == null) */
3186 mono_mb_emit_ldloc (mb, local_delegates);
3187 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3189 /* return target.<target_method|method_ptr> ( args .. ); */
3191 /* target = d.target; */
3192 mono_mb_emit_ldarg (mb, 0);
3193 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3194 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3195 mono_mb_emit_stloc (mb, local_target);
3197 /*static methods with bound first arg can have null target and still be bound*/
3198 if (!static_method_with_first_arg_bound) {
3199 /* if target != null */
3200 mono_mb_emit_ldloc (mb, local_target);
3201 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3203 /* then call this->method_ptr nonstatic */
3206 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3208 mono_mb_emit_ldloc (mb, local_target);
3209 for (i = 0; i < sig->param_count; ++i)
3210 mono_mb_emit_ldarg (mb, i + 1);
3211 mono_mb_emit_ldarg (mb, 0);
3212 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3213 mono_mb_emit_byte (mb, CEE_LDIND_I );
3214 mono_mb_emit_op (mb, CEE_CALLI, sig);
3216 mono_mb_emit_byte (mb, CEE_RET);
3219 /* else [target == null] call this->method_ptr static */
3220 mono_mb_patch_branch (mb, pos0);
3224 if (!closed_over_null) {
3225 if (target_class->valuetype) {
3226 mono_mb_emit_ldarg (mb, 1);
3227 for (i = 1; i < sig->param_count; ++i)
3228 mono_mb_emit_ldarg (mb, i + 1);
3229 mono_mb_emit_op (mb, CEE_CALL, target_method);
3231 mono_mb_emit_ldarg (mb, 1);
3232 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3233 for (i = 1; i < sig->param_count; ++i)
3234 mono_mb_emit_ldarg (mb, i + 1);
3235 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3238 mono_mb_emit_byte (mb, CEE_LDNULL);
3239 for (i = 0; i < sig->param_count; ++i)
3240 mono_mb_emit_ldarg (mb, i + 1);
3241 mono_mb_emit_op (mb, CEE_CALL, target_method);
3244 if (static_method_with_first_arg_bound) {
3245 mono_mb_emit_ldloc (mb, local_target);
3246 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3247 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3249 for (i = 0; i < sig->param_count; ++i)
3250 mono_mb_emit_ldarg (mb, i + 1);
3251 mono_mb_emit_ldarg (mb, 0);
3252 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3253 mono_mb_emit_byte (mb, CEE_LDIND_I );
3254 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3257 mono_mb_emit_byte (mb, CEE_RET);
3259 /* else [delegates != null] */
3260 mono_mb_patch_branch (mb, pos2);
3262 /* len = delegates.Length; */
3263 mono_mb_emit_ldloc (mb, local_delegates);
3264 mono_mb_emit_byte (mb, CEE_LDLEN);
3265 mono_mb_emit_byte (mb, CEE_CONV_I4);
3266 mono_mb_emit_stloc (mb, local_len);
3269 mono_mb_emit_icon (mb, 0);
3270 mono_mb_emit_stloc (mb, local_i);
3272 pos1 = mono_mb_get_label (mb);
3274 /* d = delegates [i]; */
3275 mono_mb_emit_ldloc (mb, local_delegates);
3276 mono_mb_emit_ldloc (mb, local_i);
3277 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3278 mono_mb_emit_stloc (mb, local_d);
3280 /* res = d.Invoke ( args .. ); */
3281 mono_mb_emit_ldloc (mb, local_d);
3282 for (i = 0; i < sig->param_count; i++)
3283 mono_mb_emit_ldarg (mb, i + 1);
3285 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3288 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3289 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3292 mono_mb_emit_stloc (mb, local_res);
3295 mono_mb_emit_add_to_local (mb, local_i, 1);
3298 mono_mb_emit_ldloc (mb, local_i);
3299 mono_mb_emit_ldloc (mb, local_len);
3300 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3304 mono_mb_emit_ldloc (mb, local_res);
3305 mono_mb_emit_byte (mb, CEE_RET);
3307 mb->skip_visibility = 1;
3308 #endif /* DISABLE_JIT */
3313 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3314 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3315 } else if (callvirt) {
3316 new_key = g_new0 (SignaturePointerPair, 1);
3319 info = mono_wrapper_info_create (mb, subtype);
3321 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3325 info = mono_wrapper_info_create (mb, subtype);
3327 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3331 /* mono_method_print_code (res); */
3337 * the returned method invokes all methods in a multicast delegate.
3340 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3342 gboolean callvirt = FALSE;
3343 gboolean static_method_with_first_arg_bound = FALSE;
3344 MonoMethod *target_method = NULL;
3345 MonoMethodSignature *sig;
3347 sig = mono_signature_no_pinvoke (method);
3349 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3351 target_method = del->method;
3354 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3355 static_method_with_first_arg_bound = TRUE;
3356 target_method = del->method;
3359 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3363 MonoMethodSignature *ctor_sig;
3364 MonoMethodSignature *sig;
3367 /* protected by the marshal lock, contains CtorSigPair pointers */
3368 static GSList *strsig_list = NULL;
3370 static MonoMethodSignature *
3371 lookup_string_ctor_signature (MonoMethodSignature *sig)
3373 MonoMethodSignature *callsig;
3377 mono_marshal_lock ();
3379 for (item = strsig_list; item; item = item->next) {
3381 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3382 * because it is lock-free.
3384 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3389 mono_marshal_unlock ();
3393 static MonoMethodSignature *
3394 add_string_ctor_signature (MonoMethod *method)
3396 MonoMethodSignature *callsig;
3399 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3400 callsig->ret = &mono_defaults.string_class->byval_arg;
3401 cs = g_new (CtorSigPair, 1);
3403 cs->ctor_sig = mono_method_signature (method);
3405 mono_marshal_lock ();
3406 strsig_list = g_slist_prepend (strsig_list, cs);
3407 mono_marshal_unlock ();
3412 * mono_marshal_get_string_ctor_signature:
3414 * Return the modified signature used by string ctors (they return the newly created
3417 MonoMethodSignature*
3418 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3420 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3422 sig = add_string_ctor_signature (method);
3428 get_runtime_invoke_type (MonoType *t, gboolean ret)
3431 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3433 /* Can't share this with 'I' as that needs another indirection */
3434 return &mono_defaults.int_class->this_arg;
3437 if (MONO_TYPE_IS_REFERENCE (t))
3438 return &mono_defaults.object_class->byval_arg;
3441 /* The result needs to be boxed */
3446 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3449 return &mono_defaults.sbyte_class->byval_arg;
3451 return &mono_defaults.int16_class->byval_arg;
3453 return &mono_defaults.int32_class->byval_arg;
3456 return &mono_defaults.int64_class->byval_arg;
3457 case MONO_TYPE_BOOLEAN:
3458 return &mono_defaults.byte_class->byval_arg;
3459 case MONO_TYPE_CHAR:
3460 return &mono_defaults.uint16_class->byval_arg;
3463 return &mono_defaults.int_class->byval_arg;
3464 case MONO_TYPE_VALUETYPE:
3465 if (t->data.klass->enumtype) {
3466 t = mono_class_enum_basetype (t->data.klass);
3476 * mono_marshal_get_runtime_invoke_sig:
3478 * Return a common signature used for sharing runtime invoke wrappers.
3480 static MonoMethodSignature*
3481 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3483 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3486 res->generic_param_count = 0;
3487 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3488 for (i = 0; i < res->param_count; ++i)
3489 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3495 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3497 /* Can't share wrappers which return a vtype since it needs to be boxed */
3498 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))
3501 return mono_metadata_signature_equal (sig1, sig2);
3509 * Emit the call to the wrapper method from a runtime invoke wrapper.
3512 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3513 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3515 gboolean virtual, gboolean need_direct_wrapper)
3517 static MonoString *string_dummy = NULL;
3519 int *tmp_nullable_locals;
3520 gboolean void_ret = FALSE;
3522 /* to make it work with our special string constructors */
3523 if (!string_dummy) {
3524 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3525 string_dummy = mono_string_new_wrapper ("dummy");
3529 g_assert (sig->hasthis);
3530 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3534 if (method->string_ctor) {
3535 if (mono_gc_is_moving ()) {
3536 mono_mb_emit_ptr (mb, &string_dummy);
3537 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3539 mono_mb_emit_ptr (mb, string_dummy);
3542 mono_mb_emit_ldarg (mb, 0);
3546 tmp_nullable_locals = g_new0 (int, sig->param_count);
3548 for (i = 0; i < sig->param_count; i++) {
3549 MonoType *t = sig->params [i];
3552 mono_mb_emit_ldarg (mb, 1);
3554 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3555 mono_mb_emit_byte (mb, CEE_ADD);
3559 mono_mb_emit_byte (mb, CEE_LDIND_I);
3560 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3561 * So to make this work we unbox it to a local variablee and push a reference to that.
3563 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3564 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3566 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3567 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3568 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3573 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3574 type = sig->params [i]->type;
3578 case MONO_TYPE_BOOLEAN:
3582 case MONO_TYPE_CHAR:
3591 mono_mb_emit_byte (mb, CEE_LDIND_I);
3592 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3594 case MONO_TYPE_STRING:
3595 case MONO_TYPE_CLASS:
3596 case MONO_TYPE_ARRAY:
3598 case MONO_TYPE_SZARRAY:
3599 case MONO_TYPE_OBJECT:
3600 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3602 case MONO_TYPE_GENERICINST:
3603 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3604 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3609 case MONO_TYPE_VALUETYPE:
3610 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3611 type = mono_class_enum_basetype (t->data.klass)->type;
3614 mono_mb_emit_byte (mb, CEE_LDIND_I);
3615 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3616 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3617 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3618 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3620 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3624 g_assert_not_reached ();
3629 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3630 } else if (need_direct_wrapper) {
3631 mono_mb_emit_op (mb, CEE_CALL, method);
3633 mono_mb_emit_ldarg (mb, 3);
3634 mono_mb_emit_calli (mb, callsig);
3637 if (sig->ret->byref) {
3639 g_assert_not_reached ();
3642 switch (sig->ret->type) {
3643 case MONO_TYPE_VOID:
3644 if (!method->string_ctor)
3647 case MONO_TYPE_BOOLEAN:
3648 case MONO_TYPE_CHAR:
3661 case MONO_TYPE_VALUETYPE:
3662 case MONO_TYPE_TYPEDBYREF:
3663 case MONO_TYPE_GENERICINST:
3664 /* box value types */
3665 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3667 case MONO_TYPE_STRING:
3668 case MONO_TYPE_CLASS:
3669 case MONO_TYPE_ARRAY:
3670 case MONO_TYPE_SZARRAY:
3671 case MONO_TYPE_OBJECT:
3675 /* The result is an IntPtr */
3676 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3679 g_assert_not_reached ();
3683 mono_mb_emit_stloc (mb, loc_res);
3685 /* Convert back nullable-byref arguments */
3686 for (i = 0; i < sig->param_count; i++) {
3687 MonoType *t = sig->params [i];
3690 * Box the result and put it back into the array, the caller will have
3691 * to obtain it from there.
3693 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3694 mono_mb_emit_ldarg (mb, 1);
3695 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3696 mono_mb_emit_byte (mb, CEE_ADD);
3698 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3699 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3701 mono_mb_emit_byte (mb, CEE_STIND_REF);
3705 g_free (tmp_nullable_locals);
3709 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3710 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3711 gboolean virtual, gboolean need_direct_wrapper)
3714 MonoExceptionClause *clause;
3715 int loc_res, loc_exc;
3717 /* The wrapper looks like this:
3723 * } catch (Exception e) {
3731 /* allocate local 0 (object) tmp */
3732 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3733 /* allocate local 1 (object) exc */
3734 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3736 /* *exc is assumed to be initialized to NULL by the caller */
3738 mono_mb_emit_byte (mb, CEE_LDARG_2);
3739 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3744 labels [1] = mono_mb_get_label (mb);
3745 emit_thread_force_interrupt_checkpoint (mb);
3746 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3748 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3750 /* Add a try clause around the call */
3751 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3752 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3753 clause->data.catch_class = mono_defaults.exception_class;
3754 clause->try_offset = labels [1];
3755 clause->try_len = mono_mb_get_label (mb) - labels [1];
3757 clause->handler_offset = mono_mb_get_label (mb);
3760 mono_mb_emit_stloc (mb, loc_exc);
3761 mono_mb_emit_byte (mb, CEE_LDARG_2);
3762 mono_mb_emit_ldloc (mb, loc_exc);
3763 mono_mb_emit_byte (mb, CEE_STIND_REF);
3765 mono_mb_emit_branch (mb, CEE_LEAVE);
3767 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3769 mono_mb_set_clauses (mb, 1, clause);
3771 mono_mb_patch_branch (mb, labels [2]);
3772 mono_mb_emit_ldloc (mb, loc_res);
3773 mono_mb_emit_byte (mb, CEE_RET);
3778 mono_mb_patch_branch (mb, labels [0]);
3779 emit_thread_force_interrupt_checkpoint (mb);
3780 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3782 mono_mb_emit_ldloc (mb, 0);
3783 mono_mb_emit_byte (mb, CEE_RET);
3788 * generates IL code for the runtime invoke function
3789 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3791 * we also catch exceptions if exc != null
3792 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3793 * it means that the compiled code for METHOD does not have to be looked up
3794 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3795 * its METHOD argument.
3798 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3800 MonoMethodSignature *sig, *csig, *callsig;
3801 MonoMethodBuilder *mb;
3802 GHashTable *cache = NULL;
3803 MonoClass *target_klass;
3804 MonoMethod *res = NULL;
3805 static MonoMethodSignature *cctor_signature = NULL;
3806 static MonoMethodSignature *finalize_signature = NULL;
3808 const char *param_names [16];
3809 gboolean need_direct_wrapper = FALSE;
3814 if (!cctor_signature) {
3815 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3816 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3818 if (!finalize_signature) {
3819 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3820 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3821 finalize_signature->hasthis = 1;
3825 need_direct_wrapper = TRUE;
3828 * Use a separate cache indexed by methods to speed things up and to avoid the
3829 * boundless mempool growth caused by the signature_dup stuff below.
3832 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3834 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3835 res = mono_marshal_find_in_cache (cache, method);
3839 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3840 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3842 * Array Get/Set/Address methods. The JIT implements them using inline code
3843 * so we need to create an invoke wrapper which calls the method directly.
3845 need_direct_wrapper = TRUE;
3848 if (method->string_ctor) {
3849 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3851 callsig = add_string_ctor_signature (method);
3852 /* Can't share this as we push a string as this */
3853 need_direct_wrapper = TRUE;
3855 if (method_is_dynamic (method))
3856 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3858 callsig = mono_method_signature (method);
3861 target_klass = get_wrapper_target_class (method->klass->image);
3863 /* Try to share wrappers for non-corlib methods with simple signatures */
3864 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3865 callsig = cctor_signature;
3866 target_klass = mono_defaults.object_class;
3867 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3868 callsig = finalize_signature;
3869 target_klass = mono_defaults.object_class;
3872 if (need_direct_wrapper) {
3873 /* Already searched at the start */
3875 MonoMethodSignature *tmp_sig;
3877 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3879 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3880 /* These have a different csig */
3881 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3882 (GHashFunc)mono_signature_hash,
3883 (GCompareFunc)runtime_invoke_signature_equal);
3885 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3886 (GHashFunc)mono_signature_hash,
3887 (GCompareFunc)runtime_invoke_signature_equal);
3889 /* from mono_marshal_find_in_cache */
3890 mono_marshal_lock ();
3891 res = g_hash_table_lookup (cache, callsig);
3892 mono_marshal_unlock ();
3899 /* Make a copy of the signature from the image mempool */
3901 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3905 sig = mono_method_signature (method);
3907 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3909 csig->ret = &mono_defaults.object_class->byval_arg;
3910 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3911 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3913 csig->params [0] = &mono_defaults.object_class->byval_arg;
3914 csig->params [1] = &mono_defaults.int_class->byval_arg;
3915 csig->params [2] = &mono_defaults.int_class->byval_arg;
3916 csig->params [3] = &mono_defaults.int_class->byval_arg;
3919 /* This is called from runtime code so it has to be cdecl */
3920 csig->call_convention = MONO_CALL_C;
3923 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3924 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3928 param_names [0] = "this";
3929 param_names [1] = "params";
3930 param_names [2] = "exc";
3931 param_names [3] = "method";
3932 mono_mb_set_param_names (mb, param_names);
3934 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3937 if (need_direct_wrapper) {
3939 mb->skip_visibility = 1;
3941 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3942 info->d.runtime_invoke.method = method;
3943 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3945 /* taken from mono_mb_create_and_cache */
3946 mono_marshal_lock ();
3947 res = g_hash_table_lookup (cache, callsig);
3948 mono_marshal_unlock ();
3950 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3951 info->d.runtime_invoke.sig = callsig;
3953 /* Somebody may have created it before us */
3956 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3958 mono_marshal_lock ();
3959 res = g_hash_table_lookup (cache, callsig);
3962 g_hash_table_insert (cache, callsig, res);
3963 /* Can't insert it into wrapper_hash since the key is a signature */
3964 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3966 mono_free_method (newm);
3968 mono_marshal_unlock ();
3971 /* end mono_mb_create_and_cache */
3980 * mono_marshal_get_runtime_invoke_dynamic:
3982 * Return a method which can be used to invoke managed methods from native code
3984 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3985 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3986 * ARGS should point to an architecture specific structure containing
3987 * the arguments and space for the return value.
3988 * The other arguments are the same as for runtime_invoke (), except that
3989 * ARGS should contain the this argument too.
3990 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3991 * is only one copy of it, which is useful in full-aot.
3992 * The wrapper info for the wrapper is a WrapperInfo structure.
3995 mono_marshal_get_runtime_invoke_dynamic (void)
3997 static MonoMethod *method;
3998 MonoMethodSignature *csig;
3999 MonoExceptionClause *clause;
4000 MonoMethodBuilder *mb;
4008 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4010 csig->ret = &mono_defaults.void_class->byval_arg;
4011 csig->params [0] = &mono_defaults.int_class->byval_arg;
4012 csig->params [1] = &mono_defaults.int_class->byval_arg;
4013 csig->params [2] = &mono_defaults.int_class->byval_arg;
4014 csig->params [3] = &mono_defaults.int_class->byval_arg;
4016 name = g_strdup ("runtime_invoke_dynamic");
4017 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4021 /* allocate local 0 (object) tmp */
4022 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4023 /* allocate local 1 (object) exc */
4024 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4026 /* cond set *exc to null */
4027 mono_mb_emit_byte (mb, CEE_LDARG_1);
4028 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4029 mono_mb_emit_byte (mb, 3);
4030 mono_mb_emit_byte (mb, CEE_LDARG_1);
4031 mono_mb_emit_byte (mb, CEE_LDNULL);
4032 mono_mb_emit_byte (mb, CEE_STIND_REF);
4034 emit_thread_force_interrupt_checkpoint (mb);
4036 mono_mb_emit_byte (mb, CEE_LDARG_0);
4037 mono_mb_emit_byte (mb, CEE_LDARG_2);
4038 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4039 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4041 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4043 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4044 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4045 clause->try_len = mono_mb_get_label (mb);
4048 clause->data.filter_offset = mono_mb_get_label (mb);
4050 mono_mb_emit_byte (mb, CEE_POP);
4051 mono_mb_emit_byte (mb, CEE_LDARG_1);
4052 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4053 mono_mb_emit_byte (mb, CEE_PREFIX1);
4054 mono_mb_emit_byte (mb, CEE_CGT_UN);
4055 mono_mb_emit_byte (mb, CEE_PREFIX1);
4056 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4058 clause->handler_offset = mono_mb_get_label (mb);
4061 /* store exception */
4062 mono_mb_emit_stloc (mb, 1);
4064 mono_mb_emit_byte (mb, CEE_LDARG_1);
4065 mono_mb_emit_ldloc (mb, 1);
4066 mono_mb_emit_byte (mb, CEE_STIND_REF);
4068 mono_mb_emit_byte (mb, CEE_LDNULL);
4069 mono_mb_emit_stloc (mb, 0);
4071 /* Check for the abort exception */
4072 mono_mb_emit_ldloc (mb, 1);
4073 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4074 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4076 /* Delay the abort exception */
4077 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4079 mono_mb_patch_short_branch (mb, posna);
4080 mono_mb_emit_branch (mb, CEE_LEAVE);
4082 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4084 mono_mb_set_clauses (mb, 1, clause);
4087 mono_mb_patch_branch (mb, pos);
4088 //mono_mb_emit_ldloc (mb, 0);
4089 mono_mb_emit_byte (mb, CEE_RET);
4090 #endif /* DISABLE_JIT */
4092 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4094 mono_marshal_lock ();
4095 /* double-checked locking */
4097 method = mono_mb_create (mb, csig, 16, info);
4099 mono_marshal_unlock ();
4108 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4110 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4111 klass->name_space, klass->name);
4113 mono_mb_emit_exception_marshal_directive (mb, msg);
4118 * generates IL code for the icall wrapper (the generated method
4119 * calls the unmanaged code in func)
4120 * The wrapper info for the wrapper is a WrapperInfo structure.
4123 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4125 MonoMethodSignature *csig, *csig2;
4126 MonoMethodBuilder *mb;
4131 g_assert (sig->pinvoke);
4133 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4135 mb->method->save_lmf = 1;
4137 /* Add an explicit this argument */
4139 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4141 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4145 mono_mb_emit_byte (mb, CEE_LDARG_0);
4147 for (i = 0; i < sig->param_count; i++)
4148 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4150 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4151 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4152 mono_mb_emit_calli (mb, csig2);
4153 if (check_exceptions)
4154 emit_thread_interrupt_checkpoint (mb);
4155 mono_mb_emit_byte (mb, CEE_RET);
4158 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4160 if (csig->call_convention == MONO_CALL_VARARG)
4161 csig->call_convention = 0;
4163 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4164 info->d.icall.func = (gpointer)func;
4165 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4172 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4173 MonoMarshalSpec *spec,
4174 int conv_arg, MonoType **conv_arg_type,
4175 MarshalAction action)
4178 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4179 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4184 static MonoClass *ICustomMarshaler = NULL;
4185 static MonoMethod *cleanup_native, *cleanup_managed;
4186 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4187 MonoMethod *get_instance = NULL;
4188 MonoMethodBuilder *mb = m->mb;
4189 char *exception_msg = NULL;
4193 if (!ICustomMarshaler) {
4194 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4196 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4197 goto handle_exception;
4200 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4201 g_assert (cleanup_native);
4202 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4203 g_assert (cleanup_managed);
4204 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4205 g_assert (marshal_managed_to_native);
4206 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4207 g_assert (marshal_native_to_managed);
4209 mono_memory_barrier ();
4210 ICustomMarshaler = klass;
4213 if (spec->data.custom_data.image)
4214 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4216 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4217 g_assert (mtype != NULL);
4218 mklass = mono_class_from_mono_type (mtype);
4219 g_assert (mklass != NULL);
4221 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4222 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4224 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4226 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4227 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4228 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4229 (get_sig->params [0]->type != MONO_TYPE_STRING))
4230 get_instance = NULL;
4234 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);
4237 /* Throw exception and emit compensation code if neccesary */
4238 if (exception_msg) {
4240 case MARSHAL_ACTION_CONV_IN:
4241 case MARSHAL_ACTION_CONV_RESULT:
4242 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4243 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4244 mono_mb_emit_byte (mb, CEE_POP);
4246 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4247 g_free (exception_msg);
4250 case MARSHAL_ACTION_PUSH:
4251 mono_mb_emit_byte (mb, CEE_LDNULL);
4259 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4260 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4263 case MARSHAL_ACTION_CONV_IN:
4265 case MONO_TYPE_CLASS:
4266 case MONO_TYPE_OBJECT:
4267 case MONO_TYPE_STRING:
4268 case MONO_TYPE_ARRAY:
4269 case MONO_TYPE_SZARRAY:
4270 case MONO_TYPE_VALUETYPE:
4274 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4275 g_assert_not_reached ();
4279 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4281 mono_mb_emit_byte (mb, CEE_LDNULL);
4282 mono_mb_emit_stloc (mb, conv_arg);
4284 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4287 /* Minic MS.NET behavior */
4288 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4291 /* Check for null */
4292 mono_mb_emit_ldarg (mb, argnum);
4294 mono_mb_emit_byte (mb, CEE_LDIND_I);
4295 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4297 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4299 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4301 mono_mb_emit_ldarg (mb, argnum);
4303 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4305 if (t->type == MONO_TYPE_VALUETYPE) {
4307 * Since we can't determine the type of the argument, we
4308 * will assume the unmanaged function takes a pointer.
4310 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4312 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4315 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4316 mono_mb_emit_stloc (mb, conv_arg);
4318 mono_mb_patch_branch (mb, pos2);
4321 case MARSHAL_ACTION_CONV_OUT:
4322 /* Check for null */
4323 mono_mb_emit_ldloc (mb, conv_arg);
4324 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4327 mono_mb_emit_ldarg (mb, argnum);
4329 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4331 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4333 mono_mb_emit_ldloc (mb, conv_arg);
4334 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4335 mono_mb_emit_byte (mb, CEE_STIND_REF);
4336 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4337 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4339 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4341 mono_mb_emit_ldloc (mb, conv_arg);
4342 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4344 /* We have nowhere to store the result */
4345 mono_mb_emit_byte (mb, CEE_POP);
4348 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4350 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4352 mono_mb_emit_ldloc (mb, conv_arg);
4354 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4356 mono_mb_patch_branch (mb, pos2);
4359 case MARSHAL_ACTION_PUSH:
4361 mono_mb_emit_ldloc_addr (mb, conv_arg);
4363 mono_mb_emit_ldloc (mb, conv_arg);
4366 case MARSHAL_ACTION_CONV_RESULT:
4367 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4369 mono_mb_emit_stloc (mb, 3);
4371 mono_mb_emit_ldloc (mb, 3);
4372 mono_mb_emit_stloc (mb, loc1);
4374 /* Check for null */
4375 mono_mb_emit_ldloc (mb, 3);
4376 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4378 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4380 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4381 mono_mb_emit_byte (mb, CEE_DUP);
4383 mono_mb_emit_ldloc (mb, 3);
4384 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4385 mono_mb_emit_stloc (mb, 3);
4387 mono_mb_emit_ldloc (mb, loc1);
4388 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4390 mono_mb_patch_branch (mb, pos2);
4393 case MARSHAL_ACTION_MANAGED_CONV_IN:
4394 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4396 mono_mb_emit_byte (mb, CEE_LDNULL);
4397 mono_mb_emit_stloc (mb, conv_arg);
4399 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4402 /* Check for null */
4403 mono_mb_emit_ldarg (mb, argnum);
4405 mono_mb_emit_byte (mb, CEE_LDIND_I);
4406 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4408 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4409 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4411 mono_mb_emit_ldarg (mb, argnum);
4413 mono_mb_emit_byte (mb, CEE_LDIND_I);
4415 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4416 mono_mb_emit_stloc (mb, conv_arg);
4418 mono_mb_patch_branch (mb, pos2);
4421 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4422 g_assert (!t->byref);
4424 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4426 mono_mb_emit_stloc (mb, 3);
4428 mono_mb_emit_ldloc (mb, 3);
4429 mono_mb_emit_stloc (mb, loc1);
4431 /* Check for null */
4432 mono_mb_emit_ldloc (mb, 3);
4433 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4435 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4436 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4437 mono_mb_emit_byte (mb, CEE_DUP);
4439 mono_mb_emit_ldloc (mb, 3);
4440 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4441 mono_mb_emit_stloc (mb, 3);
4443 mono_mb_emit_ldloc (mb, loc1);
4444 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4446 mono_mb_patch_branch (mb, pos2);
4449 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4451 /* Check for null */
4452 mono_mb_emit_ldloc (mb, conv_arg);
4453 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4456 mono_mb_emit_ldarg (mb, argnum);
4458 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4460 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4462 mono_mb_emit_ldloc (mb, conv_arg);
4463 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4464 mono_mb_emit_byte (mb, CEE_STIND_I);
4467 /* Call CleanUpManagedData */
4468 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4470 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4472 mono_mb_emit_ldloc (mb, conv_arg);
4473 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4475 mono_mb_patch_branch (mb, pos2);
4479 g_assert_not_reached ();
4487 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4488 MonoMarshalSpec *spec,
4489 int conv_arg, MonoType **conv_arg_type,
4490 MarshalAction action)
4493 MonoMethodBuilder *mb = m->mb;
4496 case MARSHAL_ACTION_CONV_IN: {
4497 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4499 g_assert (t->type == MONO_TYPE_OBJECT);
4500 g_assert (!t->byref);
4502 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4503 mono_mb_emit_ldarg (mb, argnum);
4504 mono_mb_emit_icon (mb, encoding);
4505 mono_mb_emit_icon (mb, t->attrs);
4506 mono_mb_emit_icall (mb, mono_marshal_asany);
4507 mono_mb_emit_stloc (mb, conv_arg);
4511 case MARSHAL_ACTION_PUSH:
4512 mono_mb_emit_ldloc (mb, conv_arg);
4515 case MARSHAL_ACTION_CONV_OUT: {
4516 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4518 mono_mb_emit_ldarg (mb, argnum);
4519 mono_mb_emit_ldloc (mb, conv_arg);
4520 mono_mb_emit_icon (mb, encoding);
4521 mono_mb_emit_icon (mb, t->attrs);
4522 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4527 g_assert_not_reached ();
4534 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4535 MonoMarshalSpec *spec,
4536 int conv_arg, MonoType **conv_arg_type,
4537 MarshalAction action)
4540 MonoMethodBuilder *mb = m->mb;
4541 MonoClass *klass, *date_time_class;
4544 klass = mono_class_from_mono_type (t);
4546 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4549 case MARSHAL_ACTION_CONV_IN:
4550 if (klass == date_time_class) {
4551 /* Convert it to an OLE DATE type */
4552 static MonoMethod *to_oadate;
4555 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4556 g_assert (to_oadate);
4558 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4561 mono_mb_emit_ldarg (mb, argnum);
4562 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4565 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4567 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4569 mono_mb_emit_ldarg_addr (mb, argnum);
4570 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4571 mono_mb_emit_stloc (mb, conv_arg);
4575 mono_mb_patch_branch (mb, pos);
4579 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4580 klass->blittable || klass->enumtype)
4583 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4585 /* store the address of the source into local variable 0 */
4587 mono_mb_emit_ldarg (mb, argnum);
4589 mono_mb_emit_ldarg_addr (mb, argnum);
4591 mono_mb_emit_stloc (mb, 0);
4593 /* allocate space for the native struct and
4594 * store the address into local variable 1 (dest) */
4595 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4596 mono_mb_emit_byte (mb, CEE_PREFIX1);
4597 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4598 mono_mb_emit_stloc (mb, conv_arg);
4601 mono_mb_emit_ldloc (mb, 0);
4602 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4605 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4607 mono_mb_emit_ldloc (mb, conv_arg);
4608 mono_mb_emit_stloc (mb, 1);
4610 /* emit valuetype conversion code */
4611 emit_struct_conv (mb, klass, FALSE);
4615 mono_mb_patch_branch (mb, pos);
4618 case MARSHAL_ACTION_PUSH:
4619 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4621 g_assert (!t->byref);
4623 /* Have to change the signature since the vtype is passed byref */
4624 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4626 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4627 klass->blittable || klass->enumtype)
4628 mono_mb_emit_ldarg_addr (mb, argnum);
4630 mono_mb_emit_ldloc (mb, conv_arg);
4634 if (klass == date_time_class) {
4636 mono_mb_emit_ldloc_addr (mb, conv_arg);
4638 mono_mb_emit_ldloc (mb, conv_arg);
4642 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4643 klass->blittable || klass->enumtype) {
4644 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_ldloc (mb, conv_arg);
4649 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4650 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4654 case MARSHAL_ACTION_CONV_OUT:
4655 if (klass == date_time_class) {
4656 /* Convert from an OLE DATE type */
4657 static MonoMethod *from_oadate;
4662 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4664 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4665 g_assert (from_oadate);
4667 mono_mb_emit_ldarg (mb, argnum);
4668 mono_mb_emit_ldloc (mb, conv_arg);
4669 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4670 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4675 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4676 klass->blittable || klass->enumtype)
4680 /* dst = argument */
4681 mono_mb_emit_ldarg (mb, argnum);
4682 mono_mb_emit_stloc (mb, 1);
4684 mono_mb_emit_ldloc (mb, 1);
4685 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4687 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4688 /* src = tmp_locals [i] */
4689 mono_mb_emit_ldloc (mb, conv_arg);
4690 mono_mb_emit_stloc (mb, 0);
4692 /* emit valuetype conversion code */
4693 emit_struct_conv (mb, klass, TRUE);
4697 emit_struct_free (mb, klass, conv_arg);
4700 mono_mb_patch_branch (mb, pos);
4703 case MARSHAL_ACTION_CONV_RESULT:
4704 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4706 mono_mb_emit_stloc (mb, 3);
4710 /* load pointer to returned value type */
4711 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4712 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4713 /* store the address of the source into local variable 0 */
4714 mono_mb_emit_stloc (mb, 0);
4716 mono_mb_emit_ldloc_addr (mb, 3);
4717 mono_mb_emit_stloc (mb, 1);
4719 /* emit valuetype conversion code */
4720 emit_struct_conv (mb, klass, TRUE);
4723 case MARSHAL_ACTION_MANAGED_CONV_IN:
4724 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4725 klass->blittable || klass->enumtype) {
4730 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4732 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4736 mono_mb_emit_ldarg (mb, argnum);
4738 mono_mb_emit_ldarg_addr (mb, argnum);
4739 mono_mb_emit_stloc (mb, 0);
4742 mono_mb_emit_ldloc (mb, 0);
4743 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4746 mono_mb_emit_ldloc_addr (mb, conv_arg);
4747 mono_mb_emit_stloc (mb, 1);
4749 /* emit valuetype conversion code */
4750 emit_struct_conv (mb, klass, TRUE);
4753 mono_mb_patch_branch (mb, pos);
4756 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4757 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4758 klass->blittable || klass->enumtype) {
4762 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4765 /* Check for null */
4766 mono_mb_emit_ldarg (mb, argnum);
4767 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4770 mono_mb_emit_ldloc_addr (mb, conv_arg);
4771 mono_mb_emit_stloc (mb, 0);
4774 mono_mb_emit_ldarg (mb, argnum);
4775 mono_mb_emit_stloc (mb, 1);
4777 /* emit valuetype conversion code */
4778 emit_struct_conv (mb, klass, FALSE);
4780 mono_mb_patch_branch (mb, pos2);
4783 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4784 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4785 klass->blittable || klass->enumtype) {
4786 mono_mb_emit_stloc (mb, 3);
4791 /* load pointer to returned value type */
4792 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4793 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4795 /* store the address of the source into local variable 0 */
4796 mono_mb_emit_stloc (mb, 0);
4797 /* allocate space for the native struct and
4798 * store the address into dst_ptr */
4799 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4800 m->retobj_class = klass;
4801 g_assert (m->retobj_var);
4802 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4803 mono_mb_emit_byte (mb, CEE_CONV_I);
4804 mono_mb_emit_icall (mb, mono_marshal_alloc);
4805 mono_mb_emit_stloc (mb, 1);
4806 mono_mb_emit_ldloc (mb, 1);
4807 mono_mb_emit_stloc (mb, m->retobj_var);
4809 /* emit valuetype conversion code */
4810 emit_struct_conv (mb, klass, FALSE);
4814 g_assert_not_reached ();
4821 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4822 MonoMarshalSpec *spec,
4823 int conv_arg, MonoType **conv_arg_type,
4824 MarshalAction action)
4828 case MARSHAL_ACTION_CONV_IN:
4829 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4831 case MARSHAL_ACTION_MANAGED_CONV_IN:
4832 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4836 MonoMethodBuilder *mb = m->mb;
4837 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4838 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4842 case MARSHAL_ACTION_CONV_IN:
4843 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4844 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4847 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4850 mono_mb_emit_ldarg (mb, argnum);
4851 mono_mb_emit_byte (mb, CEE_LDIND_I);
4853 mono_mb_emit_ldarg (mb, argnum);
4857 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4858 mono_mb_emit_exception_marshal_directive (mb, msg);
4860 mono_mb_emit_icall (mb, conv_to_icall (conv));
4862 mono_mb_emit_stloc (mb, conv_arg);
4866 case MARSHAL_ACTION_CONV_OUT:
4867 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4869 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4870 mono_mb_emit_exception_marshal_directive (mb, msg);
4874 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4875 static MonoMethod *m;
4878 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4883 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4884 mono_mb_emit_exception_marshal_directive (mb, msg);
4889 * Have to allocate a new string with the same length as the original, and
4890 * copy the contents of the buffer pointed to by CONV_ARG into it.
4892 g_assert (t->byref);
4893 mono_mb_emit_ldarg (mb, argnum);
4894 mono_mb_emit_ldloc (mb, conv_arg);
4895 mono_mb_emit_ldarg (mb, argnum);
4896 mono_mb_emit_byte (mb, CEE_LDIND_I);
4897 mono_mb_emit_managed_call (mb, m, NULL);
4898 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4899 mono_mb_emit_byte (mb, CEE_STIND_REF);
4900 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4901 mono_mb_emit_ldarg (mb, argnum);
4902 mono_mb_emit_ldloc (mb, conv_arg);
4903 mono_mb_emit_icall (mb, conv_to_icall (conv));
4904 mono_mb_emit_byte (mb, CEE_STIND_REF);
4909 mono_mb_emit_ldloc (mb, conv_arg);
4910 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4911 mono_mb_emit_icall (mb, mono_free_bstr);
4913 mono_mb_emit_icall (mb, mono_marshal_free);
4917 case MARSHAL_ACTION_PUSH:
4918 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4919 mono_mb_emit_ldloc_addr (mb, conv_arg);
4921 mono_mb_emit_ldloc (mb, conv_arg);
4924 case MARSHAL_ACTION_CONV_RESULT:
4925 mono_mb_emit_stloc (mb, 0);
4927 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4929 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4930 mono_mb_emit_exception_marshal_directive (mb, msg);
4934 mono_mb_emit_ldloc (mb, 0);
4935 mono_mb_emit_icall (mb, conv_to_icall (conv));
4936 mono_mb_emit_stloc (mb, 3);
4938 /* free the string */
4939 mono_mb_emit_ldloc (mb, 0);
4940 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4941 mono_mb_emit_icall (mb, mono_free_bstr);
4943 mono_mb_emit_icall (mb, mono_marshal_free);
4946 case MARSHAL_ACTION_MANAGED_CONV_IN:
4947 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4949 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4952 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4956 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4958 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4959 mono_mb_emit_exception_marshal_directive (mb, msg);
4963 mono_mb_emit_ldarg (mb, argnum);
4965 mono_mb_emit_byte (mb, CEE_LDIND_I);
4966 mono_mb_emit_icall (mb, conv_to_icall (conv));
4967 mono_mb_emit_stloc (mb, conv_arg);
4970 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4973 mono_mb_emit_ldarg (mb, argnum);
4974 mono_mb_emit_ldloc (mb, conv_arg);
4975 mono_mb_emit_icall (mb, conv_to_icall (conv));
4976 mono_mb_emit_byte (mb, CEE_STIND_I);
4981 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4982 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4983 /* We need to make a copy so the caller is able to free it */
4984 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4986 mono_mb_emit_icall (mb, conv_to_icall (conv));
4987 mono_mb_emit_stloc (mb, 3);
4991 g_assert_not_reached ();
4999 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5000 MonoMarshalSpec *spec, int conv_arg,
5001 MonoType **conv_arg_type, MarshalAction action)
5004 if (action == MARSHAL_ACTION_CONV_IN)
5005 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5007 MonoMethodBuilder *mb = m->mb;
5010 case MARSHAL_ACTION_CONV_IN: {
5011 MonoType *intptr_type;
5012 int dar_release_slot, pos;
5014 intptr_type = &mono_defaults.int_class->byval_arg;
5015 conv_arg = mono_mb_add_local (mb, intptr_type);
5016 *conv_arg_type = intptr_type;
5018 if (!sh_dangerous_add_ref)
5019 init_safe_handle ();
5021 mono_mb_emit_ldarg (mb, argnum);
5022 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5023 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5025 mono_mb_patch_branch (mb, pos);
5028 * My tests in show that ref SafeHandles are not really
5029 * passed as ref objects. Instead a NULL is passed as the
5032 mono_mb_emit_icon (mb, 0);
5033 mono_mb_emit_stloc (mb, conv_arg);
5037 /* Create local to hold the ref parameter to DangerousAddRef */
5038 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5040 /* set release = false; */
5041 mono_mb_emit_icon (mb, 0);
5042 mono_mb_emit_stloc (mb, dar_release_slot);
5044 /* safehandle.DangerousAddRef (ref release) */
5045 mono_mb_emit_ldarg (mb, argnum);
5046 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5047 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5049 /* Pull the handle field from SafeHandle */
5050 mono_mb_emit_ldarg (mb, argnum);
5051 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5052 mono_mb_emit_byte (mb, CEE_LDIND_I);
5053 mono_mb_emit_stloc (mb, conv_arg);
5058 case MARSHAL_ACTION_PUSH:
5060 mono_mb_emit_ldloc_addr (mb, conv_arg);
5062 mono_mb_emit_ldloc (mb, conv_arg);
5065 case MARSHAL_ACTION_CONV_OUT: {
5066 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5067 int dar_release_slot = conv_arg + 1;
5070 if (!sh_dangerous_release)
5071 init_safe_handle ();
5077 * My tests indicate that ref SafeHandles parameters are not actually
5078 * passed by ref, but instead a new Handle is created regardless of
5079 * whether a change happens in the unmanaged side.
5081 * Also, the Handle is created before calling into unmanaged code,
5082 * but we do not support that mechanism (getting to the original
5083 * handle) and it makes no difference where we create this
5085 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5087 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5090 /* refval = new SafeHandleDerived ()*/
5091 mono_mb_emit_ldarg (mb, argnum);
5092 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5093 mono_mb_emit_byte (mb, CEE_STIND_REF);
5095 /* refval.handle = returned_handle */
5096 mono_mb_emit_ldarg (mb, argnum);
5097 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5098 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5099 mono_mb_emit_ldloc (mb, conv_arg);
5100 mono_mb_emit_byte (mb, CEE_STIND_I);
5102 mono_mb_emit_ldloc (mb, dar_release_slot);
5103 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5104 mono_mb_emit_ldarg (mb, argnum);
5105 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5106 mono_mb_patch_branch (mb, label_next);
5111 case MARSHAL_ACTION_CONV_RESULT: {
5112 MonoMethod *ctor = NULL;
5113 int intptr_handle_slot;
5115 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5116 mono_mb_emit_byte (mb, CEE_POP);
5117 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5121 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5123 mono_mb_emit_byte (mb, CEE_POP);
5124 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5127 /* Store the IntPtr results into a local */
5128 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5129 mono_mb_emit_stloc (mb, intptr_handle_slot);
5131 /* Create return value */
5132 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5133 mono_mb_emit_stloc (mb, 3);
5135 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5136 mono_mb_emit_ldloc (mb, 3);
5137 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5138 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5139 mono_mb_emit_byte (mb, CEE_STIND_I);
5143 case MARSHAL_ACTION_MANAGED_CONV_IN:
5144 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5147 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5148 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5151 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5152 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5155 printf ("Unhandled case for MarshalAction: %d\n", action);
5163 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5164 MonoMarshalSpec *spec, int conv_arg,
5165 MonoType **conv_arg_type, MarshalAction action)
5168 if (action == MARSHAL_ACTION_CONV_IN)
5169 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5171 MonoMethodBuilder *mb = m->mb;
5174 case MARSHAL_ACTION_CONV_IN: {
5175 MonoType *intptr_type;
5177 intptr_type = &mono_defaults.int_class->byval_arg;
5178 conv_arg = mono_mb_add_local (mb, intptr_type);
5179 *conv_arg_type = intptr_type;
5182 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5183 mono_mb_emit_exception_marshal_directive (mb, msg);
5186 mono_mb_emit_ldarg_addr (mb, argnum);
5187 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5188 mono_mb_emit_byte (mb, CEE_ADD);
5189 mono_mb_emit_byte (mb, CEE_LDIND_I);
5190 mono_mb_emit_stloc (mb, conv_arg);
5194 case MARSHAL_ACTION_PUSH:
5195 mono_mb_emit_ldloc (mb, conv_arg);
5198 case MARSHAL_ACTION_CONV_OUT: {
5199 /* no resource release required */
5203 case MARSHAL_ACTION_CONV_RESULT: {
5204 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5205 mono_mb_emit_exception_marshal_directive (mb, msg);
5209 case MARSHAL_ACTION_MANAGED_CONV_IN:
5210 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5213 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5214 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5217 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5218 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5221 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5229 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5230 MonoMarshalSpec *spec,
5231 int conv_arg, MonoType **conv_arg_type,
5232 MarshalAction action)
5235 if (action == MARSHAL_ACTION_CONV_IN)
5236 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5238 MonoMethodBuilder *mb = m->mb;
5239 MonoClass *klass = mono_class_from_mono_type (t);
5243 case MARSHAL_ACTION_CONV_IN:
5244 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5245 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5247 m->orig_conv_args [argnum] = 0;
5249 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5250 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5251 mono_mb_emit_exception_marshal_directive (mb, msg);
5255 if (klass->delegate) {
5257 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5258 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5259 mono_mb_emit_exception_marshal_directive (mb, msg);
5261 mono_mb_emit_byte (mb, CEE_LDNULL);
5262 mono_mb_emit_stloc (mb, conv_arg);
5264 mono_mb_emit_ldarg (mb, argnum);
5265 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5266 mono_mb_emit_stloc (mb, conv_arg);
5268 } else if (klass == mono_defaults.stringbuilder_class) {
5269 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5270 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5274 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5275 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5276 mono_mb_emit_exception_marshal_directive (mb, msg);
5282 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5286 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5287 mono_mb_emit_exception_marshal_directive (mb, msg);
5291 mono_mb_emit_ldarg (mb, argnum);
5293 mono_mb_emit_byte (mb, CEE_LDIND_I);
5295 mono_mb_emit_icall (mb, conv_to_icall (conv));
5296 mono_mb_emit_stloc (mb, conv_arg);
5297 } else if (klass->blittable) {
5298 mono_mb_emit_byte (mb, CEE_LDNULL);
5299 mono_mb_emit_stloc (mb, conv_arg);
5301 mono_mb_emit_ldarg (mb, argnum);
5302 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5304 mono_mb_emit_ldarg (mb, argnum);
5305 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5306 mono_mb_emit_stloc (mb, conv_arg);
5308 mono_mb_patch_branch (mb, pos);
5311 mono_mb_emit_byte (mb, CEE_LDNULL);
5312 mono_mb_emit_stloc (mb, conv_arg);
5315 /* we dont need any conversions for out parameters */
5316 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5319 mono_mb_emit_ldarg (mb, argnum);
5320 mono_mb_emit_byte (mb, CEE_LDIND_I);
5323 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5325 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5328 /* store the address of the source into local variable 0 */
5329 mono_mb_emit_stloc (mb, 0);
5330 mono_mb_emit_ldloc (mb, 0);
5331 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5333 /* allocate space for the native struct and store the address */
5334 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5335 mono_mb_emit_byte (mb, CEE_PREFIX1);
5336 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5337 mono_mb_emit_stloc (mb, conv_arg);
5340 /* Need to store the original buffer so we can free it later */
5341 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5342 mono_mb_emit_ldloc (mb, conv_arg);
5343 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5346 /* set the src_ptr */
5347 mono_mb_emit_ldloc (mb, 0);
5348 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5349 mono_mb_emit_stloc (mb, 0);
5352 mono_mb_emit_ldloc (mb, conv_arg);
5353 mono_mb_emit_stloc (mb, 1);
5355 /* emit valuetype conversion code */
5356 emit_struct_conv (mb, klass, FALSE);
5358 mono_mb_patch_branch (mb, pos);
5362 case MARSHAL_ACTION_CONV_OUT:
5363 if (klass == mono_defaults.stringbuilder_class) {
5365 MonoMarshalNative encoding;
5366 MonoMarshalConv conv;
5368 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5369 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5371 g_assert (encoding != -1);
5374 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5378 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_ldloc (mb, conv_arg);
5382 case MONO_NATIVE_LPWSTR:
5383 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5385 case MONO_NATIVE_LPSTR:
5386 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5389 g_assert_not_reached ();
5392 mono_mb_emit_byte (mb, CEE_STIND_REF);
5394 mono_mb_emit_ldarg (mb, argnum);
5395 mono_mb_emit_ldloc (mb, conv_arg);
5397 mono_mb_emit_icall (mb, conv_to_icall (conv));
5401 mono_mb_emit_ldloc (mb, conv_arg);
5402 mono_mb_emit_icall (mb, mono_marshal_free);
5407 if (klass->delegate) {
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5411 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5412 mono_mb_emit_ldloc (mb, conv_arg);
5413 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5414 mono_mb_emit_byte (mb, CEE_STIND_REF);
5419 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5420 /* allocate a new object */
5421 mono_mb_emit_ldarg (mb, argnum);
5422 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5423 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5424 mono_mb_emit_byte (mb, CEE_STIND_REF);
5427 /* dst = *argument */
5428 mono_mb_emit_ldarg (mb, argnum);
5431 mono_mb_emit_byte (mb, CEE_LDIND_I);
5433 mono_mb_emit_stloc (mb, 1);
5435 mono_mb_emit_ldloc (mb, 1);
5436 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5438 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5439 mono_mb_emit_ldloc (mb, 1);
5440 mono_mb_emit_icon (mb, sizeof (MonoObject));
5441 mono_mb_emit_byte (mb, CEE_ADD);
5442 mono_mb_emit_stloc (mb, 1);
5444 /* src = tmp_locals [i] */
5445 mono_mb_emit_ldloc (mb, conv_arg);
5446 mono_mb_emit_stloc (mb, 0);
5448 /* emit valuetype conversion code */
5449 emit_struct_conv (mb, klass, TRUE);
5451 /* Free the structure returned by the native code */
5452 emit_struct_free (mb, klass, conv_arg);
5454 if (m->orig_conv_args [argnum]) {
5456 * If the native function changed the pointer, then free
5457 * the original structure plus the new pointer.
5459 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5460 mono_mb_emit_ldloc (mb, conv_arg);
5461 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5463 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5464 g_assert (m->orig_conv_args [argnum]);
5466 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5469 mono_mb_emit_ldloc (mb, conv_arg);
5470 mono_mb_emit_icall (mb, mono_marshal_free);
5472 mono_mb_patch_branch (mb, pos2);
5476 /* Free the original structure passed to native code */
5477 emit_struct_free (mb, klass, conv_arg);
5479 mono_mb_patch_branch (mb, pos);
5482 case MARSHAL_ACTION_PUSH:
5484 mono_mb_emit_ldloc_addr (mb, conv_arg);
5486 mono_mb_emit_ldloc (mb, conv_arg);
5489 case MARSHAL_ACTION_CONV_RESULT:
5490 if (klass->delegate) {
5491 g_assert (!t->byref);
5492 mono_mb_emit_stloc (mb, 0);
5493 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5494 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5495 mono_mb_emit_ldloc (mb, 0);
5496 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5497 mono_mb_emit_stloc (mb, 3);
5500 mono_mb_emit_stloc (mb, 0);
5502 /* Make a copy since emit_conv modifies local 0 */
5503 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5504 mono_mb_emit_ldloc (mb, 0);
5505 mono_mb_emit_stloc (mb, loc);
5507 mono_mb_emit_byte (mb, CEE_LDNULL);
5508 mono_mb_emit_stloc (mb, 3);
5510 mono_mb_emit_ldloc (mb, 0);
5511 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5513 /* allocate result object */
5515 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5516 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5517 mono_mb_emit_stloc (mb, 3);
5521 mono_mb_emit_ldloc (mb, 3);
5522 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5523 mono_mb_emit_stloc (mb, 1);
5525 /* emit conversion code */
5526 emit_struct_conv (mb, klass, TRUE);
5528 emit_struct_free (mb, klass, loc);
5530 /* Free the pointer allocated by unmanaged code */
5531 mono_mb_emit_ldloc (mb, loc);
5532 mono_mb_emit_icall (mb, mono_marshal_free);
5533 mono_mb_patch_branch (mb, pos);
5537 case MARSHAL_ACTION_MANAGED_CONV_IN:
5538 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5540 if (klass->delegate) {
5541 g_assert (!t->byref);
5542 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5543 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5544 mono_mb_emit_ldarg (mb, argnum);
5545 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5546 mono_mb_emit_stloc (mb, conv_arg);
5550 if (klass == mono_defaults.stringbuilder_class) {
5551 MonoMarshalNative encoding;
5553 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5556 g_assert (encoding == MONO_NATIVE_LPSTR);
5558 g_assert (!t->byref);
5559 g_assert (encoding != -1);
5561 mono_mb_emit_ldarg (mb, argnum);
5562 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5563 mono_mb_emit_stloc (mb, conv_arg);
5567 /* The class can not have an automatic layout */
5568 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5569 mono_mb_emit_auto_layout_exception (mb, klass);
5573 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5574 mono_mb_emit_byte (mb, CEE_LDNULL);
5575 mono_mb_emit_stloc (mb, conv_arg);
5580 mono_mb_emit_ldarg (mb, argnum);
5584 /* Check for NULL and raise an exception */
5585 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5587 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5589 mono_mb_patch_branch (mb, pos2);
5590 mono_mb_emit_ldarg (mb, argnum);
5591 mono_mb_emit_byte (mb, CEE_LDIND_I);
5594 mono_mb_emit_stloc (mb, 0);
5596 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5597 mono_mb_emit_stloc (mb, conv_arg);
5599 mono_mb_emit_ldloc (mb, 0);
5600 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5602 /* Create and set dst */
5603 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5604 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5605 mono_mb_emit_stloc (mb, conv_arg);
5606 mono_mb_emit_ldloc (mb, conv_arg);
5607 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5608 mono_mb_emit_stloc (mb, 1);
5610 /* emit valuetype conversion code */
5611 emit_struct_conv (mb, klass, TRUE);
5613 mono_mb_patch_branch (mb, pos);
5616 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5618 /* Check for null */
5619 mono_mb_emit_ldloc (mb, conv_arg);
5620 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5623 mono_mb_emit_byte (mb, CEE_STIND_REF);
5624 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5626 mono_mb_patch_branch (mb, pos);
5629 mono_mb_emit_ldloc (mb, conv_arg);
5630 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5631 mono_mb_emit_stloc (mb, 0);
5633 /* Allocate and set dest */
5634 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5635 mono_mb_emit_byte (mb, CEE_CONV_I);
5636 mono_mb_emit_icall (mb, mono_marshal_alloc);
5637 mono_mb_emit_stloc (mb, 1);
5639 /* Update argument pointer */
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_ldloc (mb, 1);
5642 mono_mb_emit_byte (mb, CEE_STIND_I);
5644 /* emit valuetype conversion code */
5645 emit_struct_conv (mb, klass, FALSE);
5647 mono_mb_patch_branch (mb, pos2);
5648 } else if (klass == mono_defaults.stringbuilder_class) {
5649 // FIXME: What to do here ?
5651 /* byval [Out] marshalling */
5653 /* FIXME: Handle null */
5656 mono_mb_emit_ldloc (mb, conv_arg);
5657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5658 mono_mb_emit_stloc (mb, 0);
5661 mono_mb_emit_ldarg (mb, argnum);
5662 mono_mb_emit_stloc (mb, 1);
5664 /* emit valuetype conversion code */
5665 emit_struct_conv (mb, klass, FALSE);
5669 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5670 if (klass->delegate) {
5671 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5672 mono_mb_emit_stloc (mb, 3);
5676 /* The class can not have an automatic layout */
5677 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5678 mono_mb_emit_auto_layout_exception (mb, klass);
5682 mono_mb_emit_stloc (mb, 0);
5683 /* Check for null */
5684 mono_mb_emit_ldloc (mb, 0);
5685 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5686 mono_mb_emit_byte (mb, CEE_LDNULL);
5687 mono_mb_emit_stloc (mb, 3);
5688 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5690 mono_mb_patch_branch (mb, pos);
5693 mono_mb_emit_ldloc (mb, 0);
5694 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5695 mono_mb_emit_stloc (mb, 0);
5697 /* Allocate and set dest */
5698 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5699 mono_mb_emit_byte (mb, CEE_CONV_I);
5700 mono_mb_emit_icall (mb, mono_marshal_alloc);
5701 mono_mb_emit_byte (mb, CEE_DUP);
5702 mono_mb_emit_stloc (mb, 1);
5703 mono_mb_emit_stloc (mb, 3);
5705 emit_struct_conv (mb, klass, FALSE);
5707 mono_mb_patch_branch (mb, pos2);
5711 g_assert_not_reached ();
5722 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5723 MonoMarshalSpec *spec,
5724 int conv_arg, MonoType **conv_arg_type,
5725 MarshalAction action)
5727 MonoMethodBuilder *mb = m->mb;
5728 static MonoMethod *get_object_for_native_variant = NULL;
5729 static MonoMethod *get_native_variant_for_object = NULL;
5731 if (!get_object_for_native_variant)
5732 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5733 g_assert (get_object_for_native_variant);
5735 if (!get_native_variant_for_object)
5736 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5737 g_assert (get_native_variant_for_object);
5740 case MARSHAL_ACTION_CONV_IN: {
5741 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5744 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5746 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5748 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5751 mono_mb_emit_ldarg (mb, argnum);
5753 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5754 mono_mb_emit_ldloc_addr (mb, conv_arg);
5755 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5759 case MARSHAL_ACTION_CONV_OUT: {
5760 static MonoMethod *variant_clear = NULL;
5763 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5764 g_assert (variant_clear);
5767 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5768 mono_mb_emit_ldarg (mb, argnum);
5769 mono_mb_emit_ldloc_addr (mb, conv_arg);
5770 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5771 mono_mb_emit_byte (mb, CEE_STIND_REF);
5774 mono_mb_emit_ldloc_addr (mb, conv_arg);
5775 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5779 case MARSHAL_ACTION_PUSH:
5781 mono_mb_emit_ldloc_addr (mb, conv_arg);
5783 mono_mb_emit_ldloc (mb, conv_arg);
5786 case MARSHAL_ACTION_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);
5792 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5793 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5796 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5798 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5800 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5804 mono_mb_emit_ldarg (mb, argnum);
5806 mono_mb_emit_ldarg_addr (mb, argnum);
5807 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5808 mono_mb_emit_stloc (mb, conv_arg);
5812 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5813 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5814 mono_mb_emit_ldloc (mb, conv_arg);
5815 mono_mb_emit_ldarg (mb, argnum);
5816 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5821 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5822 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5823 mono_mb_emit_exception_marshal_directive (mb, msg);
5828 g_assert_not_reached ();
5834 #endif /* DISABLE_COM */
5835 #endif /* DISABLE_JIT */
5838 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5840 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5841 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5843 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5845 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5857 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5858 MonoMarshalSpec *spec,
5859 int conv_arg, MonoType **conv_arg_type,
5860 MarshalAction action)
5864 case MARSHAL_ACTION_CONV_IN:
5865 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5867 case MARSHAL_ACTION_MANAGED_CONV_IN:
5868 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5872 MonoMethodBuilder *mb = m->mb;
5873 MonoClass *klass = mono_class_from_mono_type (t);
5874 gboolean need_convert, need_free;
5875 MonoMarshalNative encoding;
5877 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5880 case MARSHAL_ACTION_CONV_IN:
5881 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5882 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5884 if (klass->element_class->blittable) {
5885 mono_mb_emit_ldarg (mb, argnum);
5887 mono_mb_emit_byte (mb, CEE_LDIND_I);
5888 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5889 mono_mb_emit_stloc (mb, conv_arg);
5892 guint32 label1, label2, label3;
5893 int index_var, src_var, dest_ptr, esize;
5894 MonoMarshalConv conv;
5895 gboolean is_string = FALSE;
5897 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5899 eklass = klass->element_class;
5901 if (eklass == mono_defaults.string_class) {
5903 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5905 else if (eklass == mono_defaults.stringbuilder_class) {
5907 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5912 if (is_string && conv == -1) {
5913 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5914 mono_mb_emit_exception_marshal_directive (mb, msg);
5918 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5919 mono_mb_emit_ldarg (mb, argnum);
5921 mono_mb_emit_byte (mb, CEE_LDIND_I);
5922 mono_mb_emit_stloc (mb, src_var);
5925 mono_mb_emit_ldloc (mb, src_var);
5926 mono_mb_emit_stloc (mb, conv_arg);
5927 mono_mb_emit_ldloc (mb, src_var);
5928 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5931 esize = sizeof (gpointer);
5932 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5933 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5935 esize = mono_class_native_size (eklass, NULL);
5937 /* allocate space for the native struct and store the address */
5938 mono_mb_emit_icon (mb, esize);
5939 mono_mb_emit_ldloc (mb, src_var);
5940 mono_mb_emit_byte (mb, CEE_LDLEN);
5942 if (eklass == mono_defaults.string_class) {
5943 /* Make the array bigger for the terminating null */
5944 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5945 mono_mb_emit_byte (mb, CEE_ADD);
5947 mono_mb_emit_byte (mb, CEE_MUL);
5948 mono_mb_emit_byte (mb, CEE_PREFIX1);
5949 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5950 mono_mb_emit_stloc (mb, conv_arg);
5952 mono_mb_emit_ldloc (mb, conv_arg);
5953 mono_mb_emit_stloc (mb, dest_ptr);
5955 /* Emit marshalling loop */
5956 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5957 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5958 mono_mb_emit_stloc (mb, index_var);
5959 label2 = mono_mb_get_label (mb);
5960 mono_mb_emit_ldloc (mb, index_var);
5961 mono_mb_emit_ldloc (mb, src_var);
5962 mono_mb_emit_byte (mb, CEE_LDLEN);
5963 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5965 /* Emit marshalling code */
5968 mono_mb_emit_ldloc (mb, dest_ptr);
5969 mono_mb_emit_ldloc (mb, src_var);
5970 mono_mb_emit_ldloc (mb, index_var);
5971 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5972 mono_mb_emit_icall (mb, conv_to_icall (conv));
5973 mono_mb_emit_byte (mb, CEE_STIND_I);
5975 /* set the src_ptr */
5976 mono_mb_emit_ldloc (mb, src_var);
5977 mono_mb_emit_ldloc (mb, index_var);
5978 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5979 mono_mb_emit_stloc (mb, 0);
5982 mono_mb_emit_ldloc (mb, dest_ptr);
5983 mono_mb_emit_stloc (mb, 1);
5985 /* emit valuetype conversion code */
5986 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5989 mono_mb_emit_add_to_local (mb, index_var, 1);
5990 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5992 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5994 mono_mb_patch_branch (mb, label3);
5996 if (eklass == mono_defaults.string_class) {
5997 /* Null terminate */
5998 mono_mb_emit_ldloc (mb, dest_ptr);
5999 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6000 mono_mb_emit_byte (mb, CEE_STIND_REF);
6003 mono_mb_patch_branch (mb, label1);
6008 case MARSHAL_ACTION_CONV_OUT:
6009 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6010 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);
6011 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6014 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6015 int param_num = spec->data.array_data.param_num;
6016 MonoType *param_type;
6018 param_type = m->sig->params [param_num];
6020 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6021 char *msg = g_strdup ("Not implemented.");
6022 mono_mb_emit_exception_marshal_directive (mb, msg);
6026 mono_mb_emit_ldarg (mb, argnum);
6028 /* Create the managed array */
6029 mono_mb_emit_ldarg (mb, param_num);
6030 if (m->sig->params [param_num]->byref)
6031 // FIXME: Support other types
6032 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6033 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6034 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6035 /* Store into argument */
6036 mono_mb_emit_byte (mb, CEE_STIND_I);
6039 if (need_convert || need_free) {
6040 /* FIXME: Optimize blittable case */
6042 guint32 label1, label2, label3;
6043 int index_var, src_ptr, loc, esize;
6045 eklass = klass->element_class;
6046 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6047 esize = sizeof (gpointer);
6048 else if (eklass == mono_defaults.char_class)
6049 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6051 esize = mono_class_native_size (eklass, NULL);
6052 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6053 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6056 mono_mb_emit_ldarg (mb, argnum);
6058 mono_mb_emit_byte (mb, CEE_LDIND_I);
6059 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6061 mono_mb_emit_ldloc (mb, conv_arg);
6062 mono_mb_emit_stloc (mb, src_ptr);
6064 /* Emit marshalling loop */
6065 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6066 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6067 mono_mb_emit_stloc (mb, index_var);
6068 label2 = mono_mb_get_label (mb);
6069 mono_mb_emit_ldloc (mb, index_var);
6070 mono_mb_emit_ldarg (mb, argnum);
6072 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6073 mono_mb_emit_byte (mb, CEE_LDLEN);
6074 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6076 /* Emit marshalling code */
6078 if (eklass == mono_defaults.stringbuilder_class) {
6079 gboolean need_free2;
6080 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6082 g_assert (conv != -1);
6085 mono_mb_emit_ldarg (mb, argnum);
6087 mono_mb_emit_byte (mb, CEE_LDIND_I);
6088 mono_mb_emit_ldloc (mb, index_var);
6089 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6092 mono_mb_emit_ldloc (mb, src_ptr);
6093 mono_mb_emit_byte (mb, CEE_LDIND_I);
6095 mono_mb_emit_icall (mb, conv_to_icall (conv));
6099 mono_mb_emit_ldloc (mb, src_ptr);
6100 mono_mb_emit_byte (mb, CEE_LDIND_I);
6102 mono_mb_emit_icall (mb, mono_marshal_free);
6105 else if (eklass == mono_defaults.string_class) {
6108 mono_mb_emit_ldloc (mb, src_ptr);
6109 mono_mb_emit_byte (mb, CEE_LDIND_I);
6111 mono_mb_emit_icall (mb, mono_marshal_free);
6116 /* set the src_ptr */
6117 mono_mb_emit_ldloc (mb, src_ptr);
6118 mono_mb_emit_stloc (mb, 0);
6121 mono_mb_emit_ldarg (mb, argnum);
6123 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6124 mono_mb_emit_ldloc (mb, index_var);
6125 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6126 mono_mb_emit_stloc (mb, 1);
6128 /* emit valuetype conversion code */
6129 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6133 mono_mb_emit_ldloc (mb, src_ptr);
6134 mono_mb_emit_stloc (mb, loc);
6135 mono_mb_emit_ldloc (mb, loc);
6137 emit_struct_free (mb, eklass, loc);
6141 mono_mb_emit_add_to_local (mb, index_var, 1);
6142 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6144 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6146 mono_mb_patch_branch (mb, label1);
6147 mono_mb_patch_branch (mb, label3);
6150 if (klass->element_class->blittable) {
6151 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6153 mono_mb_emit_ldarg (mb, argnum);
6155 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6156 mono_mb_emit_ldloc (mb, conv_arg);
6157 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6162 case MARSHAL_ACTION_PUSH:
6164 mono_mb_emit_ldloc_addr (mb, conv_arg);
6166 mono_mb_emit_ldloc (mb, conv_arg);
6169 case MARSHAL_ACTION_CONV_RESULT:
6170 /* fixme: we need conversions here */
6171 mono_mb_emit_stloc (mb, 3);
6174 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6176 guint32 label1, label2, label3;
6177 int index_var, src_ptr, esize, param_num, num_elem;
6178 MonoMarshalConv conv;
6179 gboolean is_string = FALSE;
6181 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6182 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6185 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6186 mono_mb_emit_exception_marshal_directive (mb, msg);
6190 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6191 mono_mb_emit_exception_marshal_directive (mb, msg);
6194 if (spec->native != MONO_NATIVE_LPARRAY) {
6195 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6196 mono_mb_emit_exception_marshal_directive (mb, msg);
6200 /* FIXME: t is from the method which is wrapped, not the delegate type */
6201 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6203 param_num = spec->data.array_data.param_num;
6204 num_elem = spec->data.array_data.num_elem;
6205 if (spec->data.array_data.elem_mult == 0)
6206 /* param_num is not specified */
6209 if (param_num == -1) {
6210 if (num_elem <= 0) {
6211 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6212 mono_mb_emit_exception_marshal_directive (mb, msg);
6217 /* FIXME: Optimize blittable case */
6219 eklass = klass->element_class;
6220 if (eklass == mono_defaults.string_class) {
6222 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6224 else if (eklass == mono_defaults.stringbuilder_class) {
6226 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6231 mono_marshal_load_type_info (eklass);
6234 esize = sizeof (gpointer);
6236 esize = mono_class_native_size (eklass, NULL);
6237 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6239 mono_mb_emit_byte (mb, CEE_LDNULL);
6240 mono_mb_emit_stloc (mb, conv_arg);
6242 /* Check param index */
6243 if (param_num != -1) {
6244 if (param_num >= m->sig->param_count) {
6245 char *msg = g_strdup ("Array size control parameter index is out of range.");
6246 mono_mb_emit_exception_marshal_directive (mb, msg);
6249 switch (m->sig->params [param_num]->type) {
6262 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6263 mono_mb_emit_exception_marshal_directive (mb, msg);
6270 mono_mb_emit_ldarg (mb, argnum);
6271 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6273 mono_mb_emit_ldarg (mb, argnum);
6274 mono_mb_emit_stloc (mb, src_ptr);
6276 /* Create managed array */
6278 * The LPArray marshalling spec says that sometimes param_num starts
6279 * from 1, sometimes it starts from 0. But MS seems to allways start
6283 if (param_num == -1) {
6284 mono_mb_emit_icon (mb, num_elem);
6286 mono_mb_emit_ldarg (mb, param_num);
6288 mono_mb_emit_icon (mb, num_elem);
6289 mono_mb_emit_byte (mb, CEE_ADD);
6291 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6294 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6295 mono_mb_emit_stloc (mb, conv_arg);
6297 if (eklass->blittable) {
6298 mono_mb_emit_ldloc (mb, conv_arg);
6299 mono_mb_emit_byte (mb, CEE_CONV_I);
6300 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6301 mono_mb_emit_byte (mb, CEE_ADD);
6302 mono_mb_emit_ldarg (mb, argnum);
6303 mono_mb_emit_ldloc (mb, conv_arg);
6304 mono_mb_emit_byte (mb, CEE_LDLEN);
6305 mono_mb_emit_icon (mb, esize);
6306 mono_mb_emit_byte (mb, CEE_MUL);
6307 mono_mb_emit_byte (mb, CEE_PREFIX1);
6308 mono_mb_emit_byte (mb, CEE_CPBLK);
6312 /* Emit marshalling loop */
6313 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6314 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6315 mono_mb_emit_stloc (mb, index_var);
6316 label2 = mono_mb_get_label (mb);
6317 mono_mb_emit_ldloc (mb, index_var);
6318 mono_mb_emit_ldloc (mb, conv_arg);
6319 mono_mb_emit_byte (mb, CEE_LDLEN);
6320 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6322 /* Emit marshalling code */
6324 g_assert (conv != -1);
6326 mono_mb_emit_ldloc (mb, conv_arg);
6327 mono_mb_emit_ldloc (mb, index_var);
6329 mono_mb_emit_ldloc (mb, src_ptr);
6330 mono_mb_emit_byte (mb, CEE_LDIND_I);
6332 mono_mb_emit_icall (mb, conv_to_icall (conv));
6333 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6336 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6337 mono_mb_emit_exception_marshal_directive (mb, msg);
6341 mono_mb_emit_add_to_local (mb, index_var, 1);
6342 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6344 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6346 mono_mb_patch_branch (mb, label1);
6347 mono_mb_patch_branch (mb, label3);
6351 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6353 guint32 label1, label2, label3;
6354 int index_var, dest_ptr, esize, param_num, num_elem;
6355 MonoMarshalConv conv;
6356 gboolean is_string = FALSE;
6359 /* Already handled in CONV_IN */
6362 /* These are already checked in CONV_IN */
6363 g_assert (!t->byref);
6364 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6365 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6367 param_num = spec->data.array_data.param_num;
6368 num_elem = spec->data.array_data.num_elem;
6370 if (spec->data.array_data.elem_mult == 0)
6371 /* param_num is not specified */
6374 if (param_num == -1) {
6375 if (num_elem <= 0) {
6376 g_assert_not_reached ();
6380 /* FIXME: Optimize blittable case */
6382 eklass = klass->element_class;
6383 if (eklass == mono_defaults.string_class) {
6385 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6387 else if (eklass == mono_defaults.stringbuilder_class) {
6389 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6394 mono_marshal_load_type_info (eklass);
6397 esize = sizeof (gpointer);
6399 esize = mono_class_native_size (eklass, NULL);
6401 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6404 mono_mb_emit_ldloc (mb, conv_arg);
6405 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6407 mono_mb_emit_ldarg (mb, argnum);
6408 mono_mb_emit_stloc (mb, dest_ptr);
6410 if (eklass->blittable) {
6412 mono_mb_emit_ldarg (mb, argnum);
6414 mono_mb_emit_ldloc (mb, conv_arg);
6415 mono_mb_emit_byte (mb, CEE_CONV_I);
6416 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6417 mono_mb_emit_byte (mb, CEE_ADD);
6419 mono_mb_emit_ldloc (mb, conv_arg);
6420 mono_mb_emit_byte (mb, CEE_LDLEN);
6421 mono_mb_emit_icon (mb, esize);
6422 mono_mb_emit_byte (mb, CEE_MUL);
6423 mono_mb_emit_byte (mb, CEE_PREFIX1);
6424 mono_mb_emit_byte (mb, CEE_CPBLK);
6428 /* Emit marshalling loop */
6429 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6430 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6431 mono_mb_emit_stloc (mb, index_var);
6432 label2 = mono_mb_get_label (mb);
6433 mono_mb_emit_ldloc (mb, index_var);
6434 mono_mb_emit_ldloc (mb, conv_arg);
6435 mono_mb_emit_byte (mb, CEE_LDLEN);
6436 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6438 /* Emit marshalling code */
6440 g_assert (conv != -1);
6443 mono_mb_emit_ldloc (mb, dest_ptr);
6446 mono_mb_emit_ldloc (mb, conv_arg);
6447 mono_mb_emit_ldloc (mb, index_var);
6449 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6451 mono_mb_emit_icall (mb, conv_to_icall (conv));
6452 mono_mb_emit_byte (mb, CEE_STIND_I);
6455 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6456 mono_mb_emit_exception_marshal_directive (mb, msg);
6460 mono_mb_emit_add_to_local (mb, index_var, 1);
6461 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6463 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6465 mono_mb_patch_branch (mb, label1);
6466 mono_mb_patch_branch (mb, label3);
6470 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6472 guint32 label1, label2, label3;
6473 int index_var, src, dest, esize;
6474 MonoMarshalConv conv = -1;
6475 gboolean is_string = FALSE;
6477 g_assert (!t->byref);
6479 eklass = klass->element_class;
6481 mono_marshal_load_type_info (eklass);
6483 if (eklass == mono_defaults.string_class) {
6485 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6488 g_assert_not_reached ();
6492 esize = sizeof (gpointer);
6493 else if (eklass == mono_defaults.char_class)
6494 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6496 esize = mono_class_native_size (eklass, NULL);
6498 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6499 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6501 mono_mb_emit_stloc (mb, src);
6502 mono_mb_emit_ldloc (mb, src);
6503 mono_mb_emit_stloc (mb, 3);
6505 /* Check for null */
6506 mono_mb_emit_ldloc (mb, src);
6507 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6509 /* Allocate native array */
6510 mono_mb_emit_icon (mb, esize);
6511 mono_mb_emit_ldloc (mb, src);
6512 mono_mb_emit_byte (mb, CEE_LDLEN);
6514 if (eklass == mono_defaults.string_class) {
6515 /* Make the array bigger for the terminating null */
6516 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6517 mono_mb_emit_byte (mb, CEE_ADD);
6519 mono_mb_emit_byte (mb, CEE_MUL);
6520 mono_mb_emit_icall (mb, mono_marshal_alloc);
6521 mono_mb_emit_stloc (mb, dest);
6522 mono_mb_emit_ldloc (mb, dest);
6523 mono_mb_emit_stloc (mb, 3);
6525 /* Emit marshalling loop */
6526 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6527 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6528 mono_mb_emit_stloc (mb, index_var);
6529 label2 = mono_mb_get_label (mb);
6530 mono_mb_emit_ldloc (mb, index_var);
6531 mono_mb_emit_ldloc (mb, src);
6532 mono_mb_emit_byte (mb, CEE_LDLEN);
6533 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6535 /* Emit marshalling code */
6537 g_assert (conv != -1);
6540 mono_mb_emit_ldloc (mb, dest);
6543 mono_mb_emit_ldloc (mb, src);
6544 mono_mb_emit_ldloc (mb, index_var);
6546 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6548 mono_mb_emit_icall (mb, conv_to_icall (conv));
6549 mono_mb_emit_byte (mb, CEE_STIND_I);
6552 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6553 mono_mb_emit_exception_marshal_directive (mb, msg);
6557 mono_mb_emit_add_to_local (mb, index_var, 1);
6558 mono_mb_emit_add_to_local (mb, dest, esize);
6560 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6562 mono_mb_patch_branch (mb, label3);
6563 mono_mb_patch_branch (mb, label1);
6567 g_assert_not_reached ();
6574 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6577 return &mono_defaults.int32_class->byval_arg;
6579 switch (spec->native) {
6580 case MONO_NATIVE_I1:
6581 case MONO_NATIVE_U1:
6582 return &mono_defaults.byte_class->byval_arg;
6583 case MONO_NATIVE_VARIANTBOOL:
6584 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6585 return &mono_defaults.int16_class->byval_arg;
6586 case MONO_NATIVE_BOOLEAN:
6587 return &mono_defaults.int32_class->byval_arg;
6589 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6590 return &mono_defaults.int32_class->byval_arg;
6596 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6598 MonoClass* conv_arg_class = mono_defaults.int32_class;
6600 switch (spec->native) {
6601 case MONO_NATIVE_I1:
6602 case MONO_NATIVE_U1:
6603 conv_arg_class = mono_defaults.byte_class;
6604 if (ldop) *ldop = CEE_LDIND_I1;
6606 case MONO_NATIVE_VARIANTBOOL:
6607 conv_arg_class = mono_defaults.int16_class;
6608 if (ldop) *ldop = CEE_LDIND_I2;
6610 case MONO_NATIVE_BOOLEAN:
6613 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6616 return conv_arg_class;
6620 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6621 MonoMarshalSpec *spec,
6622 int conv_arg, MonoType **conv_arg_type,
6623 MarshalAction action)
6627 case MARSHAL_ACTION_CONV_IN:
6629 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6631 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6634 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6635 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6637 *conv_arg_type = &conv_arg_class->this_arg;
6639 *conv_arg_type = &conv_arg_class->byval_arg;
6645 MonoMethodBuilder *mb = m->mb;
6648 case MARSHAL_ACTION_CONV_IN: {
6649 MonoType *local_type;
6651 guint8 ldc_op = CEE_LDC_I4_1;
6653 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6655 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6657 *conv_arg_type = local_type;
6658 conv_arg = mono_mb_add_local (mb, local_type);
6660 mono_mb_emit_ldarg (mb, argnum);
6662 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6663 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6664 mono_mb_emit_byte (mb, ldc_op);
6665 mono_mb_emit_stloc (mb, conv_arg);
6666 mono_mb_patch_branch (mb, label_false);
6671 case MARSHAL_ACTION_CONV_OUT:
6673 int label_false, label_end;
6677 mono_mb_emit_ldarg (mb, argnum);
6678 mono_mb_emit_ldloc (mb, conv_arg);
6680 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6681 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6683 label_end = mono_mb_emit_branch (mb, CEE_BR);
6684 mono_mb_patch_branch (mb, label_false);
6685 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6686 mono_mb_patch_branch (mb, label_end);
6688 mono_mb_emit_byte (mb, CEE_STIND_I1);
6692 case MARSHAL_ACTION_PUSH:
6694 mono_mb_emit_ldloc_addr (mb, conv_arg);
6696 mono_mb_emit_ldloc (mb, conv_arg);
6698 mono_mb_emit_ldarg (mb, argnum);
6701 case MARSHAL_ACTION_CONV_RESULT:
6702 /* maybe we need to make sure that it fits within 8 bits */
6703 mono_mb_emit_stloc (mb, 3);
6706 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6707 MonoClass* conv_arg_class = mono_defaults.int32_class;
6708 guint8 ldop = CEE_LDIND_I4;
6709 int label_null, label_false;
6711 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6712 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6715 *conv_arg_type = &conv_arg_class->this_arg;
6717 *conv_arg_type = &conv_arg_class->byval_arg;
6720 mono_mb_emit_ldarg (mb, argnum);
6724 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6725 mono_mb_emit_ldarg (mb, argnum);
6726 mono_mb_emit_byte (mb, ldop);
6730 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6731 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6732 mono_mb_emit_stloc (mb, conv_arg);
6733 mono_mb_patch_branch (mb, label_false);
6736 mono_mb_patch_branch (mb, label_null);
6740 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6741 guint8 stop = CEE_STIND_I4;
6742 guint8 ldc_op = CEE_LDC_I4_1;
6743 int label_null,label_false, label_end;;
6748 switch (spec->native) {
6749 case MONO_NATIVE_I1:
6750 case MONO_NATIVE_U1:
6751 stop = CEE_STIND_I1;
6753 case MONO_NATIVE_VARIANTBOOL:
6754 stop = CEE_STIND_I2;
6755 ldc_op = CEE_LDC_I4_M1;
6763 mono_mb_emit_ldarg (mb, argnum);
6764 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6766 mono_mb_emit_ldarg (mb, argnum);
6767 mono_mb_emit_ldloc (mb, conv_arg);
6769 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6770 mono_mb_emit_byte (mb, ldc_op);
6771 label_end = mono_mb_emit_branch (mb, CEE_BR);
6773 mono_mb_patch_branch (mb, label_false);
6774 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6775 mono_mb_patch_branch (mb, label_end);
6777 mono_mb_emit_byte (mb, stop);
6778 mono_mb_patch_branch (mb, label_null);
6783 g_assert_not_reached ();
6790 emit_marshal_ptr (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_CONV_IN:
6799 /* MS seems to allow this in some cases, ie. bxc #158 */
6801 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6802 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6803 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6808 case MARSHAL_ACTION_PUSH:
6809 mono_mb_emit_ldarg (mb, argnum);
6812 case MARSHAL_ACTION_CONV_RESULT:
6813 /* no conversions necessary */
6814 mono_mb_emit_stloc (mb, 3);
6825 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6826 MonoMarshalSpec *spec, int conv_arg,
6827 MonoType **conv_arg_type, MarshalAction action)
6830 MonoMethodBuilder *mb = m->mb;
6833 case MARSHAL_ACTION_PUSH:
6834 /* fixme: dont know how to marshal that. We cant simply
6835 * convert it to a one byte UTF8 character, because an
6836 * unicode character may need more that one byte in UTF8 */
6837 mono_mb_emit_ldarg (mb, argnum);
6840 case MARSHAL_ACTION_CONV_RESULT:
6841 /* fixme: we need conversions here */
6842 mono_mb_emit_stloc (mb, 3);
6853 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6854 MonoMarshalSpec *spec, int conv_arg,
6855 MonoType **conv_arg_type, MarshalAction action)
6858 MonoMethodBuilder *mb = m->mb;
6861 case MARSHAL_ACTION_PUSH:
6862 mono_mb_emit_ldarg (mb, argnum);
6865 case MARSHAL_ACTION_CONV_RESULT:
6866 /* no conversions necessary */
6867 mono_mb_emit_stloc (mb, 3);
6878 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6879 MonoMarshalSpec *spec, int conv_arg,
6880 MonoType **conv_arg_type, MarshalAction action)
6882 /* Ensure that we have marshalling info for this param */
6883 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6885 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6886 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6888 if (spec && spec->native == MONO_NATIVE_ASANY)
6889 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6892 case MONO_TYPE_VALUETYPE:
6893 if (t->data.klass == mono_defaults.handleref_class)
6894 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6896 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6897 case MONO_TYPE_STRING:
6898 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6899 case MONO_TYPE_CLASS:
6900 case MONO_TYPE_OBJECT:
6902 if (spec && spec->native == MONO_NATIVE_STRUCT)
6903 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6906 spec->native == MONO_NATIVE_IDISPATCH ||
6907 spec->native == MONO_NATIVE_INTERFACE))
6908 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6909 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6910 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6911 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6912 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6915 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6916 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6917 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6919 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6920 case MONO_TYPE_ARRAY:
6921 case MONO_TYPE_SZARRAY:
6922 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6923 case MONO_TYPE_BOOLEAN:
6924 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6926 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6927 case MONO_TYPE_CHAR:
6928 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6941 case MONO_TYPE_FNPTR:
6942 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6943 case MONO_TYPE_GENERICINST:
6944 if (mono_type_generic_inst_is_valuetype (t))
6945 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6947 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6955 * mono_marshal_emit_native_wrapper:
6956 * @image: the image to use for looking up custom marshallers
6957 * @sig: The signature of the native function
6958 * @piinfo: Marshalling information
6959 * @mspecs: Marshalling information
6960 * @aot: whenever the created method will be compiled by the AOT compiler
6961 * @method: if non-NULL, the pinvoke method to call
6962 * @check_exceptions: Whenever to check for pending exceptions after the native call
6963 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6965 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6968 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)
6970 EmitMarshalContext m;
6971 MonoMethodSignature *csig;
6973 int i, argnum, *tmp_locals;
6974 int type, param_shift = 0;
6975 static MonoMethodSignature *get_last_error_sig = NULL;
6980 memset (&m, 0, sizeof (m));
6985 /* we copy the signature, so that we can set pinvoke to 0 */
6987 /* The function address is passed as the first argument */
6988 g_assert (!sig->hasthis);
6991 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
6999 /* we allocate local for use with emit_struct_conv() */
7000 /* allocate local 0 (pointer) src_ptr */
7001 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7002 /* allocate local 1 (pointer) dst_ptr */
7003 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7004 /* allocate local 2 (boolean) delete_old */
7005 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7007 /* delete_old = FALSE */
7008 mono_mb_emit_icon (mb, 0);
7009 mono_mb_emit_stloc (mb, 2);
7011 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7012 /* allocate local 3 to store the return value */
7013 mono_mb_add_local (mb, sig->ret);
7017 /* local 4, the local to be used when calling the suspend funcs */
7018 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7021 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7022 /* Return type custom marshaling */
7024 * Since we can't determine the return type of the unmanaged function,
7025 * we assume it returns a pointer, and pass that pointer to
7026 * MarshalNativeToManaged.
7028 csig->ret = &mono_defaults.int_class->byval_arg;
7031 /* we first do all conversions */
7032 tmp_locals = alloca (sizeof (int) * sig->param_count);
7033 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7035 for (i = 0; i < sig->param_count; i ++) {
7036 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7039 /* push all arguments */
7042 mono_mb_emit_byte (mb, CEE_LDARG_0);
7044 for (i = 0; i < sig->param_count; i++) {
7045 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7049 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7050 mono_mb_emit_stloc (mb, coop_gc_var);
7053 /* call the native method */
7055 mono_mb_emit_byte (mb, CEE_LDARG_0);
7056 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7057 mono_mb_emit_byte (mb, CEE_LDIND_I);
7058 mono_mb_emit_calli (mb, csig);
7059 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7061 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7063 g_assert_not_reached ();
7068 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7069 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7070 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7071 mono_mb_emit_calli (mb, csig);
7073 mono_mb_emit_native_call (mb, csig, func);
7077 /* Set LastError if needed */
7078 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7079 if (!get_last_error_sig) {
7080 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7081 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7082 get_last_error_sig->pinvoke = 1;
7087 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7088 * clobber its value.
7090 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7091 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7093 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7098 mono_mb_emit_ldloc (mb, coop_gc_var);
7099 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7102 /* convert the result */
7103 if (!sig->ret->byref) {
7104 MonoMarshalSpec *spec = mspecs [0];
7105 type = sig->ret->type;
7107 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7108 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7113 case MONO_TYPE_VOID:
7115 case MONO_TYPE_VALUETYPE:
7116 klass = sig->ret->data.klass;
7117 if (klass->enumtype) {
7118 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7121 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7135 case MONO_TYPE_FNPTR:
7136 case MONO_TYPE_STRING:
7137 case MONO_TYPE_CLASS:
7138 case MONO_TYPE_OBJECT:
7139 case MONO_TYPE_BOOLEAN:
7140 case MONO_TYPE_ARRAY:
7141 case MONO_TYPE_SZARRAY:
7142 case MONO_TYPE_CHAR:
7144 case MONO_TYPE_GENERICINST:
7145 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7147 case MONO_TYPE_TYPEDBYREF:
7149 g_warning ("return type 0x%02x unknown", sig->ret->type);
7150 g_assert_not_reached ();
7154 mono_mb_emit_stloc (mb, 3);
7158 * Need to call this after converting the result since MONO_VTADDR needs
7159 * to be adjacent to the call instruction.
7161 if (check_exceptions)
7162 emit_thread_interrupt_checkpoint (mb);
7164 /* we need to convert byref arguments back and free string arrays */
7165 for (i = 0; i < sig->param_count; i++) {
7166 MonoType *t = sig->params [i];
7167 MonoMarshalSpec *spec = mspecs [i + 1];
7169 argnum = i + param_shift;
7171 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7172 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7177 case MONO_TYPE_STRING:
7178 case MONO_TYPE_VALUETYPE:
7179 case MONO_TYPE_CLASS:
7180 case MONO_TYPE_OBJECT:
7181 case MONO_TYPE_SZARRAY:
7182 case MONO_TYPE_BOOLEAN:
7183 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7190 if (!MONO_TYPE_IS_VOID(sig->ret))
7191 mono_mb_emit_ldloc (mb, 3);
7193 mono_mb_emit_byte (mb, CEE_RET);
7195 #endif /* DISABLE_JIT */
7198 * mono_marshal_get_native_wrapper:
7199 * @method: The MonoMethod to wrap.
7200 * @check_exceptions: Whenever to check for pending exceptions
7202 * generates IL code for the pinvoke wrapper (the generated method
7203 * calls the unmanaged code in piinfo->addr)
7204 * The wrapper info for the wrapper is a WrapperInfo structure.
7207 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7209 MonoMethodSignature *sig, *csig;
7210 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7211 MonoMethodBuilder *mb;
7212 MonoMarshalSpec **mspecs;
7215 gboolean pinvoke = FALSE;
7218 const char *exc_class = "MissingMethodException";
7219 const char *exc_arg = NULL;
7222 g_assert (method != NULL);
7223 g_assert (mono_method_signature (method)->pinvoke);
7226 if (check_exceptions)
7227 cache = get_cache (&method->klass->image->native_wrapper_aot_check_cache, mono_aligned_addr_hash, NULL);
7229 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7231 if (check_exceptions)
7232 cache = get_cache (&method->klass->image->native_wrapper_check_cache, mono_aligned_addr_hash, NULL);
7234 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7236 if ((res = mono_marshal_find_in_cache (cache, method)))
7239 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7240 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7244 return mono_cominterop_get_native_wrapper (method);
7246 g_assert_not_reached ();
7250 sig = mono_method_signature (method);
7252 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7253 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7256 if (!piinfo->addr) {
7258 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7259 exc_arg = "Method contains unsupported native code";
7261 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7263 piinfo->addr = mono_lookup_internal_call (method);
7267 /* hack - redirect certain string constructors to CreateString */
7268 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7269 g_assert (!pinvoke);
7270 g_assert (method->string_ctor);
7271 g_assert (sig->hasthis);
7273 /* CreateString returns a value */
7274 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7275 csig->ret = &mono_defaults.string_class->byval_arg;
7279 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7280 if (!strcmp ("CreateString", res->name) &&
7281 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7284 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7285 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7287 /* create a wrapper to preserve .ctor in stack trace */
7288 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7291 mono_mb_emit_byte (mb, CEE_LDARG_0);
7292 for (i = 1; i <= csig->param_count; i++)
7293 mono_mb_emit_ldarg (mb, i);
7294 mono_mb_emit_managed_call (mb, res, NULL);
7295 mono_mb_emit_byte (mb, CEE_RET);
7298 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7299 info->d.string_ctor.method = method;
7301 /* use native_wrapper_cache because internal calls are looked up there */
7302 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7303 csig->param_count + 1, info, NULL);
7310 /* exception will be thrown */
7311 piinfo->addr = NULL;
7312 g_warning ("cannot find CreateString for .ctor");
7315 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7317 mb->method->save_lmf = 1;
7320 * In AOT mode and embedding scenarios, it is possible that the icall is not
7321 * registered in the runtime doing the AOT compilation.
7323 if (!piinfo->addr && !aot) {
7325 mono_mb_emit_exception (mb, exc_class, exc_arg);
7327 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7328 info->d.managed_to_native.method = method;
7330 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7332 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7333 csig->param_count + 16, info, NULL);
7339 /* internal calls: we simply push all arguments and call the method (no conversions) */
7340 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7342 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7344 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7346 /* hack - string constructors returns a value */
7347 if (method->string_ctor)
7348 csig->ret = &mono_defaults.string_class->byval_arg;
7355 * Add a null check since public icalls can be called with 'call' which
7356 * does no such check.
7358 mono_mb_emit_byte (mb, CEE_LDARG_0);
7359 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7360 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7361 mono_mb_patch_branch (mb, pos);
7363 mono_mb_emit_byte (mb, CEE_LDARG_0);
7366 for (i = 0; i < sig->param_count; i++)
7367 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7371 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7372 mono_mb_emit_calli (mb, csig);
7374 g_assert (piinfo->addr);
7375 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7377 if (check_exceptions)
7378 emit_thread_interrupt_checkpoint (mb);
7379 mono_mb_emit_byte (mb, CEE_RET);
7381 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7382 info->d.managed_to_native.method = method;
7384 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7386 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7395 g_assert (piinfo->addr);
7398 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7399 mono_method_get_marshal_info (method, mspecs);
7401 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7403 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7404 info->d.managed_to_native.method = method;
7406 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7408 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7413 for (i = sig->param_count; i >= 0; i--)
7415 mono_metadata_free_marshal_spec (mspecs [i]);
7419 /* mono_method_print_code (res); */
7425 * mono_marshal_get_native_func_wrapper:
7426 * @image: The image to use for memory allocation and for looking up custom marshallers.
7427 * @sig: The signature of the function
7428 * @func: The native function to wrap
7430 * Returns a wrapper method around native functions, similar to the pinvoke
7434 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7435 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7437 MonoMethodSignature *csig;
7439 SignaturePointerPair key, *new_key;
7440 MonoMethodBuilder *mb;
7449 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7450 if ((res = mono_marshal_find_in_cache (cache, &key)))
7453 name = g_strdup_printf ("wrapper_native_%p", func);
7454 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7455 mb->method->save_lmf = 1;
7458 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7461 csig = mono_metadata_signature_dup_full (image, sig);
7464 new_key = g_new (SignaturePointerPair,1);
7465 new_key->sig = csig;
7466 new_key->pointer = func;
7468 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7474 mono_marshal_set_wrapper_info (res, NULL);
7480 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7484 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7486 MonoMethodSignature *sig, *csig;
7487 MonoMethodBuilder *mb;
7492 MonoMethodPInvoke mpiinfo;
7493 MonoMethodPInvoke *piinfo = &mpiinfo;
7494 MonoMarshalSpec **mspecs;
7495 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7496 MonoImage *image = invoke->klass->image;
7499 // FIXME: include UnmanagedFunctionPointerAttribute info
7502 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7504 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7505 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7508 memset (&mpiinfo, 0, sizeof (mpiinfo));
7509 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7511 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7512 mono_method_get_marshal_info (invoke, mspecs);
7513 /* Freed below so don't alloc from mempool */
7514 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7517 name = g_strdup_printf ("wrapper_aot_native");
7518 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7519 mb->method->save_lmf = 1;
7522 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7525 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7526 info->d.managed_to_native.method = invoke;
7528 g_assert (!sig->hasthis);
7529 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7531 res = mono_mb_create_and_cache_full (cache, invoke,
7532 mb, csig, csig->param_count + 16,
7536 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7538 mono_metadata_free_marshal_spec (mspecs [i]);
7546 * mono_marshal_emit_managed_wrapper:
7548 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7549 * the delegate which wraps the managed method to be called. For closed delegates,
7550 * it could have fewer parameters than the method it wraps.
7551 * THIS_LOC is the memory location where the target of the delegate is stored.
7554 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7557 MonoMethodSignature *sig, *csig;
7563 /* we first do all conversions */
7564 for (i = 0; i < sig->param_count; i ++) {
7565 MonoType *t = sig->params [i];
7568 case MONO_TYPE_OBJECT:
7569 case MONO_TYPE_CLASS:
7570 case MONO_TYPE_VALUETYPE:
7571 case MONO_TYPE_ARRAY:
7572 case MONO_TYPE_SZARRAY:
7573 case MONO_TYPE_STRING:
7574 case MONO_TYPE_BOOLEAN:
7575 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7579 if (!sig->ret->byref) {
7580 switch (sig->ret->type) {
7581 case MONO_TYPE_STRING:
7582 csig->ret = &mono_defaults.int_class->byval_arg;
7589 MonoMethodSignature *sig, *csig;
7591 gboolean closed = FALSE;
7599 /* allocate local 0 (pointer) src_ptr */
7600 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7601 /* allocate local 1 (pointer) dst_ptr */
7602 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7603 /* allocate local 2 (boolean) delete_old */
7604 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7606 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7607 /* Closed delegate */
7608 g_assert (sig->param_count == invoke_sig->param_count + 1);
7610 /* Use a new signature without the first argument */
7611 sig = mono_metadata_signature_dup (sig);
7612 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7613 sig->param_count --;
7616 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7617 /* allocate local 3 to store the return value */
7618 mono_mb_add_local (mb, sig->ret);
7621 /* local 4, the local to be used when calling the reset_blocking funcs */
7622 /* tons of code hardcode 3 to be the return var */
7623 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7626 mono_mb_emit_icon (mb, 0);
7627 mono_mb_emit_stloc (mb, 2);
7630 * Might need to attach the thread to the JIT or change the
7631 * domain for the callback.
7633 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7634 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7637 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7638 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7639 mono_mb_emit_stloc (mb, coop_gc_var);
7642 /* we first do all conversions */
7643 tmp_locals = alloca (sizeof (int) * sig->param_count);
7644 for (i = 0; i < sig->param_count; i ++) {
7645 MonoType *t = sig->params [i];
7648 case MONO_TYPE_OBJECT:
7649 case MONO_TYPE_CLASS:
7650 case MONO_TYPE_VALUETYPE:
7651 case MONO_TYPE_ARRAY:
7652 case MONO_TYPE_SZARRAY:
7653 case MONO_TYPE_STRING:
7654 case MONO_TYPE_BOOLEAN:
7655 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7664 emit_thread_interrupt_checkpoint (mb);
7667 if (target_handle) {
7668 mono_mb_emit_icon (mb, (gint32)target_handle);
7669 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7672 g_assert_not_reached ();
7674 } else if (closed) {
7675 mono_mb_emit_icon (mb, (gint32)target_handle);
7676 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7679 for (i = 0; i < sig->param_count; i++) {
7680 MonoType *t = sig->params [i];
7682 if (tmp_locals [i]) {
7684 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7686 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7689 mono_mb_emit_ldarg (mb, i);
7692 mono_mb_emit_managed_call (mb, method, NULL);
7694 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7695 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7696 } else if (!sig->ret->byref) {
7697 switch (sig->ret->type) {
7698 case MONO_TYPE_VOID:
7700 case MONO_TYPE_BOOLEAN:
7703 case MONO_TYPE_CHAR:
7715 case MONO_TYPE_OBJECT:
7716 mono_mb_emit_stloc (mb, 3);
7718 case MONO_TYPE_STRING:
7719 csig->ret = &mono_defaults.int_class->byval_arg;
7720 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7722 case MONO_TYPE_VALUETYPE:
7723 case MONO_TYPE_CLASS:
7724 case MONO_TYPE_SZARRAY:
7725 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7728 g_warning ("return type 0x%02x unknown", sig->ret->type);
7729 g_assert_not_reached ();
7732 mono_mb_emit_stloc (mb, 3);
7735 /* Convert byref arguments back */
7736 for (i = 0; i < sig->param_count; i ++) {
7737 MonoType *t = sig->params [i];
7738 MonoMarshalSpec *spec = mspecs [i + 1];
7740 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7741 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7743 else if (t->byref) {
7745 case MONO_TYPE_CLASS:
7746 case MONO_TYPE_VALUETYPE:
7747 case MONO_TYPE_OBJECT:
7748 case MONO_TYPE_STRING:
7749 case MONO_TYPE_BOOLEAN:
7750 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7756 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7757 /* The [Out] information is encoded in the delegate signature */
7759 case MONO_TYPE_SZARRAY:
7760 case MONO_TYPE_CLASS:
7761 case MONO_TYPE_VALUETYPE:
7762 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7765 g_assert_not_reached ();
7771 /* XXX merge reset_blocking_end with detach */
7772 mono_mb_emit_ldloc (mb, coop_gc_var);
7773 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7776 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7777 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7779 if (m->retobj_var) {
7780 mono_mb_emit_ldloc (mb, m->retobj_var);
7781 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7782 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7785 if (!MONO_TYPE_IS_VOID(sig->ret))
7786 mono_mb_emit_ldloc (mb, 3);
7787 mono_mb_emit_byte (mb, CEE_RET);
7796 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7798 MonoMethodSignature *sig;
7803 * Under windows, delegates passed to native code must use the STDCALL
7804 * calling convention.
7806 csig->call_convention = MONO_CALL_STDCALL;
7809 sig = mono_method_signature (method);
7811 /* Change default calling convention if needed */
7812 /* Why is this a modopt ? */
7813 if (sig->ret && sig->ret->num_mods) {
7814 for (i = 0; i < sig->ret->num_mods; ++i) {
7816 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7817 g_assert (mono_error_ok (&error));
7818 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7819 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7820 csig->call_convention = MONO_CALL_C;
7821 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7822 csig->call_convention = MONO_CALL_STDCALL;
7823 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7824 csig->call_convention = MONO_CALL_FASTCALL;
7825 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7826 csig->call_convention = MONO_CALL_THISCALL;
7833 * generates IL code to call managed methods from unmanaged code
7834 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7837 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7839 static MonoClass *UnmanagedFunctionPointerAttribute;
7840 MonoMethodSignature *sig, *csig, *invoke_sig;
7841 MonoMethodBuilder *mb;
7842 MonoMethod *res, *invoke;
7843 MonoMarshalSpec **mspecs;
7844 MonoMethodPInvoke piinfo;
7847 EmitMarshalContext m;
7849 g_assert (method != NULL);
7850 g_assert (!mono_method_signature (method)->pinvoke);
7853 * FIXME: Should cache the method+delegate type pair, since the same method
7854 * could be called with different delegates, thus different marshalling
7857 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7858 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7861 invoke = mono_get_delegate_invoke (delegate_klass);
7862 invoke_sig = mono_method_signature (invoke);
7864 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7865 mono_method_get_marshal_info (invoke, mspecs);
7867 sig = mono_method_signature (method);
7869 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7871 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7872 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7874 /* we copy the signature, so that we can modify it */
7876 /* Need to free this later */
7877 csig = mono_metadata_signature_dup (invoke_sig);
7879 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
7883 memset (&m, 0, sizeof (m));
7889 m.image = method->klass->image;
7891 mono_marshal_set_callconv_from_modopt (invoke, csig);
7893 /* Handle the UnmanagedFunctionPointerAttribute */
7894 if (!UnmanagedFunctionPointerAttribute)
7895 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7897 /* The attribute is only available in Net 2.0 */
7898 if (UnmanagedFunctionPointerAttribute) {
7899 MonoCustomAttrInfo *cinfo;
7900 MonoCustomAttrEntry *attr;
7903 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7904 * contents of the attribute without constructing it, as that might not be
7905 * possible when running in cross-compiling mode.
7907 cinfo = mono_custom_attrs_from_class (delegate_klass);
7910 for (i = 0; i < cinfo->num_attrs; ++i) {
7911 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7912 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7913 attr = &cinfo->attrs [i];
7919 MonoArray *typed_args, *named_args;
7920 CattrNamedArg *arginfo;
7924 MonoBoolean set_last_error = 0;
7927 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7928 g_assert (mono_error_ok (&error));
7929 g_assert (mono_array_length (typed_args) == 1);
7932 o = mono_array_get (typed_args, MonoObject*, 0);
7933 call_conv = *(gint32*)mono_object_unbox (o);
7936 for (i = 0; i < mono_array_length (named_args); ++i) {
7937 CattrNamedArg *narg = &arginfo [i];
7939 o = mono_array_get (named_args, MonoObject*, i);
7941 g_assert (narg->field);
7942 if (!strcmp (narg->field->name, "CharSet")) {
7943 charset = *(gint32*)mono_object_unbox (o);
7944 } else if (!strcmp (narg->field->name, "SetLastError")) {
7945 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7946 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7947 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7948 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7949 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7951 g_assert_not_reached ();
7957 memset (&piinfo, 0, sizeof (piinfo));
7959 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7961 csig->call_convention = call_conv - 1;
7964 if (cinfo && !cinfo->cached)
7965 mono_custom_attrs_free (cinfo);
7968 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7970 if (!target_handle) {
7973 // FIXME: Associate it with the method+delegate_klass pair
7974 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7975 info->d.native_to_managed.method = method;
7976 info->d.native_to_managed.klass = delegate_klass;
7978 res = mono_mb_create_and_cache_full (cache, method,
7979 mb, csig, sig->param_count + 16,
7985 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7989 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7991 mono_metadata_free_marshal_spec (mspecs [i]);
7994 /* mono_method_print_code (res); */
8000 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8003 MonoMethodSignature *sig;
8004 MonoMethodBuilder *mb;
8009 method = mono_get_method (image, token, NULL);
8012 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8013 MonoMethodSignature *csig;
8014 MonoMarshalSpec **mspecs;
8015 EmitMarshalContext m;
8017 sig = mono_method_signature (method);
8018 g_assert (!sig->hasthis);
8020 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8021 mono_method_get_marshal_info (method, mspecs);
8023 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8024 csig = mono_metadata_signature_dup_full (image, sig);
8028 memset (&m, 0, sizeof (m));
8036 mono_marshal_set_callconv_from_modopt (method, csig);
8038 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8040 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8045 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8048 for (i = sig->param_count; i >= 0; i--)
8050 mono_metadata_free_marshal_spec (mspecs [i]);
8053 return mono_compile_method (method);
8056 sig = mono_method_signature (method);
8057 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8059 param_count = sig->param_count + sig->hasthis;
8061 for (i = 0; i < param_count; i++)
8062 mono_mb_emit_ldarg (mb, i);
8064 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8065 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8067 mono_mb_emit_op (mb, CEE_CALL, method);
8068 mono_mb_emit_byte (mb, CEE_RET);
8073 method = mono_mb_create (mb, sig, param_count, NULL);
8076 return mono_compile_method (method);
8082 * The code directly following this is the cache hit, value positive branch
8084 * This function takes a new method builder with 0 locals and adds two locals
8085 * to create multiple out-branches and the fall through state of having the object
8086 * on the stack after a cache miss
8089 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8090 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8091 MonoMethodBuilder *mb)
8095 /* allocate local 0 (pointer) obj_vtable */
8096 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8097 /* allocate local 1 (pointer) cached_vtable */
8098 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8101 mono_mb_emit_ldarg (mb, obj_arg_position);
8102 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8104 /*obj_vtable = obj->vtable;*/
8105 mono_mb_emit_ldarg (mb, obj_arg_position);
8106 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8107 mono_mb_emit_byte (mb, CEE_LDIND_I);
8108 mono_mb_emit_stloc (mb, 0);
8110 /* cached_vtable = *cache*/
8111 mono_mb_emit_ldarg (mb, cache_arg_position);
8112 mono_mb_emit_byte (mb, CEE_LDIND_I);
8113 mono_mb_emit_stloc (mb, 1);
8115 mono_mb_emit_ldloc (mb, 1);
8116 mono_mb_emit_byte (mb, CEE_LDC_I4);
8117 mono_mb_emit_i4 (mb, ~0x1);
8118 mono_mb_emit_byte (mb, CEE_CONV_I);
8119 mono_mb_emit_byte (mb, CEE_AND);
8120 mono_mb_emit_ldloc (mb, 0);
8121 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8122 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8124 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8125 mono_mb_emit_ldloc (mb, 1);
8126 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8127 mono_mb_emit_byte (mb, CEE_CONV_U);
8128 mono_mb_emit_byte (mb, CEE_AND);
8129 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8130 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8133 mono_mb_patch_branch (mb, cache_miss_pos);
8136 mono_mb_emit_ldarg (mb, obj_arg_position);
8137 mono_mb_emit_ldarg (mb, class_arg_position);
8138 mono_mb_emit_ldarg (mb, cache_arg_position);
8139 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8142 #endif /* DISABLE_JIT */
8145 * This does the equivalent of mono_object_castclass_with_cache.
8146 * The wrapper info for the wrapper is a WrapperInfo structure.
8149 mono_marshal_get_castclass_with_cache (void)
8151 static MonoMethod *cached;
8153 MonoMethodBuilder *mb;
8154 MonoMethodSignature *sig;
8155 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8158 const int obj_arg_position = 0;
8159 const int class_arg_position = 1;
8160 const int cache_arg_position = 2;
8165 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8166 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8167 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8168 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8169 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8170 sig->ret = &mono_defaults.object_class->byval_arg;
8174 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8175 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8176 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8179 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8180 mono_mb_emit_ldarg (mb, obj_arg_position);
8181 mono_mb_emit_byte (mb, CEE_RET);
8184 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8185 mono_mb_patch_branch (mb, invalid_cast_pos);
8186 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8189 mono_mb_patch_branch (mb, return_null_pos);
8190 mono_mb_emit_byte (mb, CEE_LDNULL);
8191 mono_mb_emit_byte (mb, CEE_RET);
8192 #endif /* DISABLE_JIT */
8194 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8195 res = mono_mb_create (mb, sig, 8, info);
8198 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8199 mono_free_method (res);
8200 mono_metadata_free_method_signature (sig);
8208 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8210 MonoObject *isinst = mono_object_isinst (obj, klass);
8212 #ifndef DISABLE_REMOTING
8213 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8217 uintptr_t cache_update = (uintptr_t)obj->vtable;
8219 cache_update = cache_update | 0x1;
8221 *cache = cache_update;
8227 * This does the equivalent of mono_object_isinst_with_cache.
8228 * The wrapper info for the wrapper is a WrapperInfo structure.
8231 mono_marshal_get_isinst_with_cache (void)
8233 static MonoMethod *cached;
8235 MonoMethodBuilder *mb;
8236 MonoMethodSignature *sig;
8237 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8240 const int obj_arg_position = 0;
8241 const int class_arg_position = 1;
8242 const int cache_arg_position = 2;
8247 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8248 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8250 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8252 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8254 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8255 sig->ret = &mono_defaults.object_class->byval_arg;
8259 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8260 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8261 // Return the object gotten via the slow path.
8262 mono_mb_emit_byte (mb, CEE_RET);
8265 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8266 mono_mb_patch_branch (mb, return_null_pos);
8267 mono_mb_emit_byte (mb, CEE_LDNULL);
8268 mono_mb_emit_byte (mb, CEE_RET);
8271 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8272 mono_mb_emit_ldarg (mb, 0);
8273 mono_mb_emit_byte (mb, CEE_RET);
8276 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8277 res = mono_mb_create (mb, sig, 8, info);
8280 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8281 mono_free_method (res);
8282 mono_metadata_free_method_signature (sig);
8290 * mono_marshal_get_isinst:
8291 * @klass: the type of the field
8293 * This method generates a function which can be used to check if an object is
8294 * an instance of the given type, icluding the case where the object is a proxy.
8295 * The generated function has the following signature:
8296 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8299 mono_marshal_get_isinst (MonoClass *klass)
8301 static MonoMethodSignature *isint_sig = NULL;
8305 int pos_was_ok, pos_end;
8306 #ifndef DISABLE_REMOTING
8307 int pos_end2, pos_failed;
8310 MonoMethodBuilder *mb;
8312 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8313 if ((res = mono_marshal_find_in_cache (cache, klass)))
8317 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8318 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8319 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8320 isint_sig->pinvoke = 0;
8323 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8324 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8327 mb->method->save_lmf = 1;
8330 /* check if the object is a proxy that needs special cast */
8331 mono_mb_emit_ldarg (mb, 0);
8332 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8333 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8335 /* The result of MONO_CISINST can be:
8336 0) the type check succeeded
8337 1) the type check did not succeed
8338 2) a CanCastTo call is needed */
8339 #ifndef DISABLE_REMOTING
8340 mono_mb_emit_byte (mb, CEE_DUP);
8341 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8343 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8344 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8346 /* get the real proxy from the transparent proxy*/
8348 mono_mb_emit_ldarg (mb, 0);
8349 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8350 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8354 mono_mb_patch_branch (mb, pos_failed);
8355 mono_mb_emit_byte (mb, CEE_LDNULL);
8356 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8360 mono_mb_patch_branch (mb, pos_was_ok);
8361 mono_mb_emit_byte (mb, CEE_POP);
8362 mono_mb_emit_ldarg (mb, 0);
8366 mono_mb_patch_branch (mb, pos_end);
8367 mono_mb_patch_branch (mb, pos_end2);
8368 mono_mb_emit_byte (mb, CEE_RET);
8370 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8374 mono_mb_emit_byte (mb, CEE_LDNULL);
8375 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8379 mono_mb_patch_branch (mb, pos_was_ok);
8380 mono_mb_emit_ldarg (mb, 0);
8384 mono_mb_patch_branch (mb, pos_end);
8385 mono_mb_emit_byte (mb, CEE_RET);
8386 #endif /* DISABLE_REMOTING */
8387 #endif /* DISABLE_JIT */
8389 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8390 info->d.proxy.klass = klass;
8391 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8398 * mono_marshal_get_castclass:
8399 * @klass: the type of the field
8401 * This method generates a function which can be used to cast an object to
8402 * an instance of the given type, icluding the case where the object is a proxy.
8403 * The generated function has the following signature:
8404 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8405 * The wrapper info for the wrapper is a WrapperInfo structure.
8408 mono_marshal_get_castclass (MonoClass *klass)
8410 static MonoMethodSignature *castclass_sig = NULL;
8413 #ifndef DISABLE_REMOTING
8414 int pos_was_ok, pos_was_ok2;
8417 MonoMethodBuilder *mb;
8420 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8421 if ((res = mono_marshal_find_in_cache (cache, klass)))
8424 if (!castclass_sig) {
8425 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8426 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8427 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8428 castclass_sig->pinvoke = 0;
8431 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8432 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8435 mb->method->save_lmf = 1;
8438 /* check if the object is a proxy that needs special cast */
8439 mono_mb_emit_ldarg (mb, 0);
8440 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8441 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8443 /* The result of MONO_CCASTCLASS can be:
8444 0) the cast is valid
8445 1) cast of unknown proxy type
8446 or an exception if the cast is is invalid
8448 #ifndef DISABLE_REMOTING
8449 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8451 /* get the real proxy from the transparent proxy*/
8453 mono_mb_emit_ldarg (mb, 0);
8454 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8455 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8458 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8461 mono_mb_patch_branch (mb, pos_was_ok);
8462 mono_mb_patch_branch (mb, pos_was_ok2);
8464 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8465 mono_mb_emit_byte (mb, CEE_POP);
8466 #endif /* DISABLE_REMOTING */
8468 mono_mb_emit_ldarg (mb, 0);
8471 mono_mb_emit_byte (mb, CEE_RET);
8472 #endif /* DISABLE_JIT */
8474 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8476 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8484 * mono_marshal_get_struct_to_ptr:
8487 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8488 * The wrapper info for the wrapper is a WrapperInfo structure.
8491 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8493 MonoMethodBuilder *mb;
8494 static MonoMethod *stoptr = NULL;
8498 g_assert (klass != NULL);
8500 mono_marshal_load_type_info (klass);
8502 if (klass->marshal_info->str_to_ptr)
8503 return klass->marshal_info->str_to_ptr;
8506 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8509 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8512 if (klass->blittable) {
8513 mono_mb_emit_byte (mb, CEE_LDARG_1);
8514 mono_mb_emit_byte (mb, CEE_LDARG_0);
8515 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8516 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8517 mono_mb_emit_byte (mb, CEE_PREFIX1);
8518 mono_mb_emit_byte (mb, CEE_CPBLK);
8521 /* allocate local 0 (pointer) src_ptr */
8522 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8523 /* allocate local 1 (pointer) dst_ptr */
8524 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8525 /* allocate local 2 (boolean) delete_old */
8526 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8527 mono_mb_emit_byte (mb, CEE_LDARG_2);
8528 mono_mb_emit_stloc (mb, 2);
8530 /* initialize src_ptr to point to the start of object data */
8531 mono_mb_emit_byte (mb, CEE_LDARG_0);
8532 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8533 mono_mb_emit_stloc (mb, 0);
8535 /* initialize dst_ptr */
8536 mono_mb_emit_byte (mb, CEE_LDARG_1);
8537 mono_mb_emit_stloc (mb, 1);
8539 emit_struct_conv (mb, klass, FALSE);
8542 mono_mb_emit_byte (mb, CEE_RET);
8544 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8545 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8548 klass->marshal_info->str_to_ptr = res;
8553 * mono_marshal_get_ptr_to_struct:
8556 * generates IL code for PtrToStructure (IntPtr src, object structure)
8557 * The wrapper info for the wrapper is a WrapperInfo structure.
8560 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8562 MonoMethodBuilder *mb;
8563 static MonoMethodSignature *ptostr = NULL;
8567 g_assert (klass != NULL);
8569 mono_marshal_load_type_info (klass);
8571 if (klass->marshal_info->ptr_to_str)
8572 return klass->marshal_info->ptr_to_str;
8575 MonoMethodSignature *sig;
8577 /* Create the signature corresponding to
8578 static void PtrToStructure (IntPtr ptr, object structure);
8579 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8580 sig = mono_create_icall_signature ("void ptr object");
8581 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8583 mono_memory_barrier ();
8587 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8590 if (klass->blittable) {
8591 mono_mb_emit_byte (mb, CEE_LDARG_1);
8592 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8593 mono_mb_emit_byte (mb, CEE_LDARG_0);
8594 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8595 mono_mb_emit_byte (mb, CEE_PREFIX1);
8596 mono_mb_emit_byte (mb, CEE_CPBLK);
8599 /* allocate local 0 (pointer) src_ptr */
8600 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8601 /* allocate local 1 (pointer) dst_ptr */
8602 mono_mb_add_local (mb, &klass->this_arg);
8604 /* initialize src_ptr to point to the start of object data */
8605 mono_mb_emit_byte (mb, CEE_LDARG_0);
8606 mono_mb_emit_stloc (mb, 0);
8608 /* initialize dst_ptr */
8609 mono_mb_emit_byte (mb, CEE_LDARG_1);
8610 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8611 mono_mb_emit_stloc (mb, 1);
8613 emit_struct_conv (mb, klass, TRUE);
8616 mono_mb_emit_byte (mb, CEE_RET);
8618 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8619 res = mono_mb_create (mb, ptostr, 0, info);
8622 klass->marshal_info->ptr_to_str = res;
8627 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8628 * This is used to avoid infinite recursion since it is hard to determine where to
8629 * replace a method with its synchronized wrapper, and where not.
8630 * The runtime should execute METHOD instead of the wrapper.
8631 * The wrapper info for the wrapper is a WrapperInfo structure.
8634 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8636 MonoMethodBuilder *mb;
8638 MonoMethodSignature *sig;
8640 MonoGenericContext *ctx = NULL;
8641 MonoGenericContainer *container = NULL;
8643 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8644 ctx = &((MonoMethodInflated*)method)->context;
8645 method = ((MonoMethodInflated*)method)->declaring;
8646 container = mono_method_get_generic_container (method);
8648 container = method->klass->generic_container;
8649 g_assert (container);
8652 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8654 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8655 mono_mb_emit_byte (mb, CEE_RET);
8657 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8659 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8660 info->d.synchronized_inner.method = method;
8661 res = mono_mb_create (mb, sig, 0, info);
8665 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8666 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8672 * generates IL code for the synchronized wrapper: the generated method
8673 * calls METHOD while locking 'this' or the parent type.
8676 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8678 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8679 MonoMethodSignature *sig;
8680 MonoExceptionClause *clause;
8681 MonoMethodBuilder *mb;
8684 int i, pos, this_local, ret_local = 0;
8685 MonoGenericContext *ctx = NULL;
8686 MonoMethod *orig_method = NULL;
8687 MonoGenericContainer *container = NULL;
8691 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8694 /* FIXME: Support generic methods too */
8695 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8696 orig_method = method;
8697 ctx = &((MonoMethodInflated*)method)->context;
8698 method = ((MonoMethodInflated*)method)->declaring;
8699 container = mono_method_get_generic_container (method);
8701 container = method->klass->generic_container;
8702 g_assert (container);
8709 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8710 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8714 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8715 if ((res = mono_marshal_find_in_cache (cache, method)))
8719 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8722 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8726 if (!MONO_TYPE_IS_VOID (sig->ret))
8727 ret_local = mono_mb_add_local (mb, sig->ret);
8730 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8731 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8733 /* This will throw the type load exception when the wrapper is compiled */
8734 mono_mb_emit_byte (mb, CEE_LDNULL);
8735 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8736 mono_mb_emit_byte (mb, CEE_POP);
8738 if (!MONO_TYPE_IS_VOID (sig->ret))
8739 mono_mb_emit_ldloc (mb, ret_local);
8740 mono_mb_emit_byte (mb, CEE_RET);
8743 res = mono_mb_create_and_cache (cache, method,
8744 mb, sig, sig->param_count + 16);
8752 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8754 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8755 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8758 mono_marshal_lock ();
8760 if (!enter_method) {
8761 MonoMethodDesc *desc;
8763 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8764 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8765 g_assert (enter_method);
8766 mono_method_desc_free (desc);
8768 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8769 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8770 g_assert (exit_method);
8771 mono_method_desc_free (desc);
8773 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8774 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8775 g_assert (gettypefromhandle_method);
8776 mono_method_desc_free (desc);
8779 mono_marshal_unlock ();
8782 /* Push this or the type object */
8783 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8784 /* We have special handling for this in the JIT */
8785 int index = mono_mb_add_data (mb, method->klass);
8786 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8787 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8788 mono_mb_emit_i4 (mb, index);
8790 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8793 mono_mb_emit_ldarg (mb, 0);
8794 mono_mb_emit_stloc (mb, this_local);
8796 /* Call Monitor::Enter() */
8797 mono_mb_emit_ldloc (mb, this_local);
8798 mono_mb_emit_managed_call (mb, enter_method, NULL);
8800 clause->try_offset = mono_mb_get_label (mb);
8802 /* Call the method */
8804 mono_mb_emit_ldarg (mb, 0);
8805 for (i = 0; i < sig->param_count; i++)
8806 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8810 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8811 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8813 mono_mb_emit_managed_call (mb, method, NULL);
8816 if (!MONO_TYPE_IS_VOID (sig->ret))
8817 mono_mb_emit_stloc (mb, ret_local);
8819 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8821 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8822 clause->handler_offset = mono_mb_get_label (mb);
8824 /* Call Monitor::Exit() */
8825 mono_mb_emit_ldloc (mb, this_local);
8826 mono_mb_emit_managed_call (mb, exit_method, NULL);
8827 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8829 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8831 mono_mb_patch_branch (mb, pos);
8832 if (!MONO_TYPE_IS_VOID (sig->ret))
8833 mono_mb_emit_ldloc (mb, ret_local);
8834 mono_mb_emit_byte (mb, CEE_RET);
8836 mono_mb_set_clauses (mb, 1, clause);
8841 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8842 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8844 res = mono_mb_create_and_cache (cache, method,
8845 mb, sig, sig->param_count + 16);
8854 * the returned method calls 'method' unboxing the this argument
8857 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8859 MonoMethodSignature *sig = mono_method_signature (method);
8861 MonoMethodBuilder *mb;
8865 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8866 if ((res = mono_marshal_find_in_cache (cache, method)))
8869 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8871 g_assert (sig->hasthis);
8874 mono_mb_emit_ldarg (mb, 0);
8875 mono_mb_emit_icon (mb, sizeof (MonoObject));
8876 mono_mb_emit_byte (mb, CEE_ADD);
8877 for (i = 0; i < sig->param_count; ++i)
8878 mono_mb_emit_ldarg (mb, i + 1);
8879 mono_mb_emit_managed_call (mb, method, NULL);
8880 mono_mb_emit_byte (mb, CEE_RET);
8883 res = mono_mb_create_and_cache (cache, method,
8884 mb, sig, sig->param_count + 16);
8887 /* mono_method_print_code (res); */
8893 STELEMREF_OBJECT, /*no check at all*/
8894 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8895 STELEMREF_CLASS, /*only the klass->parents check*/
8896 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8897 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8898 STELEMREF_KIND_COUNT
8901 static const char *strelemref_wrapper_name[] = {
8902 "object", "sealed_class", "class", "interface", "complex"
8906 is_monomorphic_array (MonoClass *klass)
8908 MonoClass *element_class;
8909 if (klass->rank != 1)
8912 element_class = klass->element_class;
8913 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8917 get_virtual_stelemref_kind (MonoClass *element_class)
8919 if (element_class == mono_defaults.object_class)
8920 return STELEMREF_OBJECT;
8921 if (is_monomorphic_array (element_class))
8922 return STELEMREF_SEALED_CLASS;
8923 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8924 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8925 #ifdef COMPRESSED_INTERFACE_BITMAP
8926 return STELEMREF_COMPLEX;
8928 return STELEMREF_INTERFACE;
8930 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8931 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8932 return STELEMREF_COMPLEX;
8933 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8934 return STELEMREF_SEALED_CLASS;
8935 return STELEMREF_CLASS;
8941 load_array_element_address (MonoMethodBuilder *mb)
8943 mono_mb_emit_ldarg (mb, 0);
8944 mono_mb_emit_ldarg (mb, 1);
8945 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8949 load_array_class (MonoMethodBuilder *mb, int aklass)
8951 mono_mb_emit_ldarg (mb, 0);
8952 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8953 mono_mb_emit_byte (mb, CEE_LDIND_I);
8954 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8955 mono_mb_emit_byte (mb, CEE_LDIND_I);
8956 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8957 mono_mb_emit_byte (mb, CEE_LDIND_I);
8958 mono_mb_emit_stloc (mb, aklass);
8962 load_value_class (MonoMethodBuilder *mb, int vklass)
8964 mono_mb_emit_ldarg (mb, 2);
8965 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8966 mono_mb_emit_byte (mb, CEE_LDIND_I);
8967 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8968 mono_mb_emit_byte (mb, CEE_LDIND_I);
8969 mono_mb_emit_stloc (mb, vklass);
8975 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8977 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8978 printf ("slow vstore of %s\n", name);
8984 * The wrapper info for the wrapper is a WrapperInfo structure.
8987 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8988 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8989 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8990 * - Add a case for arrays of arrays.
8993 get_virtual_stelemref_wrapper (int kind)
8995 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8996 static MonoMethodSignature *signature;
8997 MonoMethodBuilder *mb;
9000 const char *param_names [16];
9002 int aklass, vklass, vtable, uiid;
9003 int array_slot_addr;
9006 if (cached_methods [kind])
9007 return cached_methods [kind];
9009 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9010 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9014 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9016 /* void this::stelemref (size_t idx, void* value) */
9017 sig->ret = &mono_defaults.void_class->byval_arg;
9018 sig->hasthis = TRUE;
9019 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9020 sig->params [1] = &mono_defaults.object_class->byval_arg;
9025 param_names [0] = "index";
9026 param_names [1] = "value";
9027 mono_mb_set_param_names (mb, param_names);
9029 /*For now simply call plain old stelemref*/
9031 case STELEMREF_OBJECT:
9032 /* ldelema (implicit bound check) */
9033 load_array_element_address (mb);
9035 mono_mb_emit_ldarg (mb, 2);
9036 mono_mb_emit_byte (mb, CEE_STIND_REF);
9037 mono_mb_emit_byte (mb, CEE_RET);
9040 case STELEMREF_COMPLEX:
9042 <ldelema (bound check)>
9045 if (!mono_object_isinst (value, aklass))
9049 *array_slot_addr = value;
9052 throw new ArrayTypeMismatchException ();
9055 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9056 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9060 /*Use this to debug/record stores that are going thru the slow path*/
9061 MonoMethodSignature *csig;
9062 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9063 csig->ret = &mono_defaults.void_class->byval_arg;
9064 csig->params [0] = &mono_defaults.object_class->byval_arg;
9065 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9066 csig->params [2] = &mono_defaults.object_class->byval_arg;
9067 mono_mb_emit_ldarg (mb, 0);
9068 mono_mb_emit_ldarg (mb, 1);
9069 mono_mb_emit_ldarg (mb, 2);
9070 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9074 /* ldelema (implicit bound check) */
9075 load_array_element_address (mb);
9076 mono_mb_emit_stloc (mb, array_slot_addr);
9078 /* if (!value) goto do_store */
9079 mono_mb_emit_ldarg (mb, 2);
9080 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9082 /* aklass = array->vtable->klass->element_class */
9083 load_array_class (mb, aklass);
9085 /*if (mono_object_isinst (value, aklass)) */
9086 mono_mb_emit_ldarg (mb, 2);
9087 mono_mb_emit_ldloc (mb, aklass);
9088 mono_mb_emit_icall (mb, mono_object_isinst);
9089 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9092 mono_mb_patch_branch (mb, b1);
9093 mono_mb_emit_ldloc (mb, array_slot_addr);
9094 mono_mb_emit_ldarg (mb, 2);
9095 mono_mb_emit_byte (mb, CEE_STIND_REF);
9096 mono_mb_emit_byte (mb, CEE_RET);
9099 mono_mb_patch_branch (mb, b2);
9101 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9104 case STELEMREF_SEALED_CLASS:
9106 <ldelema (bound check)>
9110 aklass = array->vtable->klass->element_class;
9111 vklass = value->vtable->klass;
9113 if (vklass != aklass)
9117 *array_slot_addr = value;
9120 throw new ArrayTypeMismatchException ();
9122 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9123 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9124 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9127 /* ldelema (implicit bound check) */
9128 load_array_element_address (mb);
9129 mono_mb_emit_stloc (mb, array_slot_addr);
9131 /* if (!value) goto do_store */
9132 mono_mb_emit_ldarg (mb, 2);
9133 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9135 /* aklass = array->vtable->klass->element_class */
9136 load_array_class (mb, aklass);
9138 /* vklass = value->vtable->klass */
9139 load_value_class (mb, vklass);
9141 /*if (vklass != aklass) goto do_exception; */
9142 mono_mb_emit_ldloc (mb, aklass);
9143 mono_mb_emit_ldloc (mb, vklass);
9144 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9147 mono_mb_patch_branch (mb, b1);
9148 mono_mb_emit_ldloc (mb, array_slot_addr);
9149 mono_mb_emit_ldarg (mb, 2);
9150 mono_mb_emit_byte (mb, CEE_STIND_REF);
9151 mono_mb_emit_byte (mb, CEE_RET);
9154 mono_mb_patch_branch (mb, b2);
9155 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9158 case STELEMREF_CLASS:
9161 <ldelema (bound check)>
9165 aklass = array->vtable->klass->element_class;
9166 vklass = value->vtable->klass;
9168 if (vklass->idepth < aklass->idepth)
9171 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9175 *array_slot_addr = value;
9179 throw new ArrayTypeMismatchException ();
9181 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9182 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9183 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9185 /* ldelema (implicit bound check) */
9186 load_array_element_address (mb);
9187 mono_mb_emit_stloc (mb, array_slot_addr);
9189 /* if (!value) goto do_store */
9190 mono_mb_emit_ldarg (mb, 2);
9191 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9193 /* aklass = array->vtable->klass->element_class */
9194 load_array_class (mb, aklass);
9196 /* vklass = value->vtable->klass */
9197 load_value_class (mb, vklass);
9199 /*if (mono_object_isinst (value, aklass)) */
9200 mono_mb_emit_ldarg (mb, 2);
9201 mono_mb_emit_ldloc (mb, aklass);
9202 mono_mb_emit_icall (mb, mono_object_isinst);
9203 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9205 /* if (vklass->idepth < aklass->idepth) goto failue */
9206 mono_mb_emit_ldloc (mb, vklass);
9207 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9208 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9210 mono_mb_emit_ldloc (mb, aklass);
9211 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9212 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9214 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9216 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9217 mono_mb_emit_ldloc (mb, vklass);
9218 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9219 mono_mb_emit_byte (mb, CEE_LDIND_I);
9221 mono_mb_emit_ldloc (mb, aklass);
9222 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9223 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9224 mono_mb_emit_icon (mb, 1);
9225 mono_mb_emit_byte (mb, CEE_SUB);
9226 mono_mb_emit_icon (mb, sizeof (void*));
9227 mono_mb_emit_byte (mb, CEE_MUL);
9228 mono_mb_emit_byte (mb, CEE_ADD);
9229 mono_mb_emit_byte (mb, CEE_LDIND_I);
9231 mono_mb_emit_ldloc (mb, aklass);
9232 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9235 mono_mb_patch_branch (mb, b1);
9236 mono_mb_emit_ldloc (mb, array_slot_addr);
9237 mono_mb_emit_ldarg (mb, 2);
9238 mono_mb_emit_byte (mb, CEE_STIND_REF);
9239 mono_mb_emit_byte (mb, CEE_RET);
9242 mono_mb_patch_branch (mb, b2);
9243 mono_mb_patch_branch (mb, b3);
9245 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9248 case STELEMREF_INTERFACE:
9255 klass = array->obj.vtable->klass->element_class;
9257 uiid = klass->interface_id;
9258 if (uiid > vt->max_interface_id)
9260 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9263 mono_array_setref (array, index, value);
9266 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9268 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9269 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9270 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9271 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9273 /* ldelema (implicit bound check) */
9274 load_array_element_address (mb);
9275 mono_mb_emit_stloc (mb, array_slot_addr);
9277 /* if (!value) goto do_store */
9278 mono_mb_emit_ldarg (mb, 2);
9279 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9281 /* klass = array->vtable->klass->element_class */
9282 load_array_class (mb, aklass);
9284 /* vt = value->vtable */
9285 mono_mb_emit_ldarg (mb, 2);
9286 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9287 mono_mb_emit_byte (mb, CEE_LDIND_I);
9288 mono_mb_emit_stloc (mb, vtable);
9290 /* uiid = klass->interface_id; */
9291 mono_mb_emit_ldloc (mb, aklass);
9292 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9293 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9294 mono_mb_emit_stloc (mb, uiid);
9296 /*if (uiid > vt->max_interface_id)*/
9297 mono_mb_emit_ldloc (mb, uiid);
9298 mono_mb_emit_ldloc (mb, vtable);
9299 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9300 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9301 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9303 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9305 /*vt->interface_bitmap*/
9306 mono_mb_emit_ldloc (mb, vtable);
9307 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9308 mono_mb_emit_byte (mb, CEE_LDIND_I);
9311 mono_mb_emit_ldloc (mb, uiid);
9312 mono_mb_emit_icon (mb, 3);
9313 mono_mb_emit_byte (mb, CEE_SHR_UN);
9315 /*vt->interface_bitmap [(uiid) >> 3]*/
9316 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9317 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9319 /*(1 << ((uiid)&7)))*/
9320 mono_mb_emit_icon (mb, 1);
9321 mono_mb_emit_ldloc (mb, uiid);
9322 mono_mb_emit_icon (mb, 7);
9323 mono_mb_emit_byte (mb, CEE_AND);
9324 mono_mb_emit_byte (mb, CEE_SHL);
9326 /*bitwise and the whole thing*/
9327 mono_mb_emit_byte (mb, CEE_AND);
9328 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9331 mono_mb_patch_branch (mb, b1);
9332 mono_mb_emit_ldloc (mb, array_slot_addr);
9333 mono_mb_emit_ldarg (mb, 2);
9334 mono_mb_emit_byte (mb, CEE_STIND_REF);
9335 mono_mb_emit_byte (mb, CEE_RET);
9338 mono_mb_patch_branch (mb, b2);
9339 mono_mb_patch_branch (mb, b3);
9340 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9344 mono_mb_emit_ldarg (mb, 0);
9345 mono_mb_emit_ldarg (mb, 1);
9346 mono_mb_emit_ldarg (mb, 2);
9347 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9348 mono_mb_emit_byte (mb, CEE_RET);
9351 #endif /* DISABLE_JIT */
9352 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9353 info->d.virtual_stelemref.kind = kind;
9354 res = mono_mb_create (mb, signature, 4, info);
9355 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9357 mono_marshal_lock ();
9358 if (!cached_methods [kind]) {
9359 cached_methods [kind] = res;
9360 mono_marshal_unlock ();
9362 mono_marshal_unlock ();
9363 mono_free_method (res);
9367 return cached_methods [kind];
9371 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9375 g_assert (array_class->rank == 1);
9376 kind = get_virtual_stelemref_kind (array_class->element_class);
9378 return get_virtual_stelemref_wrapper (kind);
9382 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9387 *nwrappers = STELEMREF_KIND_COUNT;
9388 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9389 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9390 res [i] = get_virtual_stelemref_wrapper (i);
9395 * The wrapper info for the wrapper is a WrapperInfo structure.
9398 mono_marshal_get_stelemref (void)
9400 static MonoMethod* ret = NULL;
9401 MonoMethodSignature *sig;
9402 MonoMethodBuilder *mb;
9405 guint32 b1, b2, b3, b4;
9408 int array_slot_addr;
9413 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9416 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9418 /* void stelemref (void* array, int idx, void* value) */
9419 sig->ret = &mono_defaults.void_class->byval_arg;
9420 sig->params [0] = &mono_defaults.object_class->byval_arg;
9421 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9422 sig->params [2] = &mono_defaults.object_class->byval_arg;
9425 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9426 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9427 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9431 <ldelema (bound check)>
9435 aklass = array->vtable->klass->element_class;
9436 vklass = value->vtable->klass;
9438 if (vklass->idepth < aklass->idepth)
9441 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9445 *array_slot_addr = value;
9449 if (mono_object_isinst (value, aklass))
9452 throw new ArrayTypeMismatchException ();
9455 /* ldelema (implicit bound check) */
9456 mono_mb_emit_ldarg (mb, 0);
9457 mono_mb_emit_ldarg (mb, 1);
9458 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9459 mono_mb_emit_stloc (mb, array_slot_addr);
9461 /* if (!value) goto do_store */
9462 mono_mb_emit_ldarg (mb, 2);
9463 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9465 /* aklass = array->vtable->klass->element_class */
9466 mono_mb_emit_ldarg (mb, 0);
9467 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9468 mono_mb_emit_byte (mb, CEE_LDIND_I);
9469 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9470 mono_mb_emit_byte (mb, CEE_LDIND_I);
9471 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9472 mono_mb_emit_byte (mb, CEE_LDIND_I);
9473 mono_mb_emit_stloc (mb, aklass);
9475 /* vklass = value->vtable->klass */
9476 mono_mb_emit_ldarg (mb, 2);
9477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9478 mono_mb_emit_byte (mb, CEE_LDIND_I);
9479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9480 mono_mb_emit_byte (mb, CEE_LDIND_I);
9481 mono_mb_emit_stloc (mb, vklass);
9483 /* if (vklass->idepth < aklass->idepth) goto failue */
9484 mono_mb_emit_ldloc (mb, vklass);
9485 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9486 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9488 mono_mb_emit_ldloc (mb, aklass);
9489 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9490 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9492 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9494 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9495 mono_mb_emit_ldloc (mb, vklass);
9496 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9497 mono_mb_emit_byte (mb, CEE_LDIND_I);
9499 mono_mb_emit_ldloc (mb, aklass);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9501 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9502 mono_mb_emit_icon (mb, 1);
9503 mono_mb_emit_byte (mb, CEE_SUB);
9504 mono_mb_emit_icon (mb, sizeof (void*));
9505 mono_mb_emit_byte (mb, CEE_MUL);
9506 mono_mb_emit_byte (mb, CEE_ADD);
9507 mono_mb_emit_byte (mb, CEE_LDIND_I);
9509 mono_mb_emit_ldloc (mb, aklass);
9511 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9513 copy_pos = mono_mb_get_label (mb);
9515 mono_mb_patch_branch (mb, b1);
9516 mono_mb_emit_ldloc (mb, array_slot_addr);
9517 mono_mb_emit_ldarg (mb, 2);
9518 mono_mb_emit_byte (mb, CEE_STIND_REF);
9520 mono_mb_emit_byte (mb, CEE_RET);
9523 mono_mb_patch_branch (mb, b2);
9524 mono_mb_patch_branch (mb, b3);
9526 mono_mb_emit_ldarg (mb, 2);
9527 mono_mb_emit_ldloc (mb, aklass);
9528 mono_mb_emit_icall (mb, mono_object_isinst);
9530 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9531 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9532 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9534 mono_mb_emit_byte (mb, CEE_RET);
9536 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9537 ret = mono_mb_create (mb, sig, 4, info);
9544 * mono_marshal_get_gsharedvt_in_wrapper:
9546 * This wrapper handles calls from normal code to gsharedvt code.
9548 * The wrapper info for the wrapper is a WrapperInfo structure.
9551 mono_marshal_get_gsharedvt_in_wrapper (void)
9553 static MonoMethod* ret = NULL;
9554 MonoMethodSignature *sig;
9555 MonoMethodBuilder *mb;
9561 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9563 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9564 sig->ret = &mono_defaults.void_class->byval_arg;
9568 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9570 mono_mb_emit_byte (mb, CEE_RET);
9572 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9573 ret = mono_mb_create (mb, sig, 4, info);
9580 * mono_marshal_get_gsharedvt_out_wrapper:
9582 * This wrapper handles calls from gsharedvt code to normal code.
9584 * The wrapper info for the wrapper is a WrapperInfo structure.
9587 mono_marshal_get_gsharedvt_out_wrapper (void)
9589 static MonoMethod* ret = NULL;
9590 MonoMethodSignature *sig;
9591 MonoMethodBuilder *mb;
9597 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9599 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9600 sig->ret = &mono_defaults.void_class->byval_arg;
9604 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9606 mono_mb_emit_byte (mb, CEE_RET);
9608 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9609 ret = mono_mb_create (mb, sig, 4, info);
9621 /* LOCKING: vars accessed under the marshal lock */
9622 static ArrayElemAddr *elem_addr_cache = NULL;
9623 static int elem_addr_cache_size = 0;
9624 static int elem_addr_cache_next = 0;
9627 * mono_marshal_get_array_address:
9628 * @rank: rank of the array type
9629 * @elem_size: size in bytes of an element of an array.
9631 * Returns a MonoMethod that implements the code to get the address
9632 * of an element in a multi-dimenasional array of @rank dimensions.
9633 * The returned method takes an array as the first argument and then
9634 * @rank indexes for the @rank dimensions.
9635 * If ELEM_SIZE is 0, read the array size from the array object.
9638 mono_marshal_get_array_address (int rank, int elem_size)
9641 MonoMethodBuilder *mb;
9642 MonoMethodSignature *sig;
9645 int i, bounds, ind, realidx;
9646 int branch_pos, *branch_positions;
9650 mono_marshal_lock ();
9651 for (i = 0; i < elem_addr_cache_next; ++i) {
9652 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9653 ret = elem_addr_cache [i].method;
9657 mono_marshal_unlock ();
9661 branch_positions = g_new0 (int, rank);
9663 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9665 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9666 sig->ret = &mono_defaults.int_class->byval_arg;
9667 sig->params [0] = &mono_defaults.object_class->byval_arg;
9668 for (i = 0; i < rank; ++i) {
9669 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9672 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9673 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9677 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9678 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9679 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9681 /* bounds = array->bounds; */
9682 mono_mb_emit_ldarg (mb, 0);
9683 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9684 mono_mb_emit_byte (mb, CEE_LDIND_I);
9685 mono_mb_emit_stloc (mb, bounds);
9687 /* ind is the overall element index, realidx is the partial index in a single dimension */
9688 /* ind = idx0 - bounds [0].lower_bound */
9689 mono_mb_emit_ldarg (mb, 1);
9690 mono_mb_emit_ldloc (mb, bounds);
9691 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9692 mono_mb_emit_byte (mb, CEE_ADD);
9693 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9694 mono_mb_emit_byte (mb, CEE_SUB);
9695 mono_mb_emit_stloc (mb, ind);
9696 /* if (ind >= bounds [0].length) goto exeception; */
9697 mono_mb_emit_ldloc (mb, ind);
9698 mono_mb_emit_ldloc (mb, bounds);
9699 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9700 mono_mb_emit_byte (mb, CEE_ADD);
9701 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9702 /* note that we use unsigned comparison */
9703 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9705 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9706 * We could also decide to ignore the passed elem_size and get it
9707 * from the array object, to reduce the number of methods we generate:
9708 * the additional cost is 3 memory loads and a non-immediate mul.
9710 for (i = 1; i < rank; ++i) {
9711 /* realidx = idxi - bounds [i].lower_bound */
9712 mono_mb_emit_ldarg (mb, 1 + i);
9713 mono_mb_emit_ldloc (mb, bounds);
9714 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9715 mono_mb_emit_byte (mb, CEE_ADD);
9716 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9717 mono_mb_emit_byte (mb, CEE_SUB);
9718 mono_mb_emit_stloc (mb, realidx);
9719 /* if (realidx >= bounds [i].length) goto exeception; */
9720 mono_mb_emit_ldloc (mb, realidx);
9721 mono_mb_emit_ldloc (mb, bounds);
9722 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9723 mono_mb_emit_byte (mb, CEE_ADD);
9724 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9725 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9726 /* ind = ind * bounds [i].length + realidx */
9727 mono_mb_emit_ldloc (mb, ind);
9728 mono_mb_emit_ldloc (mb, bounds);
9729 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9730 mono_mb_emit_byte (mb, CEE_ADD);
9731 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9732 mono_mb_emit_byte (mb, CEE_MUL);
9733 mono_mb_emit_ldloc (mb, realidx);
9734 mono_mb_emit_byte (mb, CEE_ADD);
9735 mono_mb_emit_stloc (mb, ind);
9738 /* return array->vector + ind * element_size */
9739 mono_mb_emit_ldarg (mb, 0);
9740 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9741 mono_mb_emit_ldloc (mb, ind);
9743 mono_mb_emit_icon (mb, elem_size);
9745 /* Load arr->vtable->klass->sizes.element_class */
9746 mono_mb_emit_ldarg (mb, 0);
9747 mono_mb_emit_byte (mb, CEE_CONV_I);
9748 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9749 mono_mb_emit_byte (mb, CEE_ADD);
9750 mono_mb_emit_byte (mb, CEE_LDIND_I);
9751 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9752 mono_mb_emit_byte (mb, CEE_ADD);
9753 mono_mb_emit_byte (mb, CEE_LDIND_I);
9754 /* sizes is an union, so this reads sizes.element_size */
9755 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9756 mono_mb_emit_byte (mb, CEE_ADD);
9757 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9759 mono_mb_emit_byte (mb, CEE_MUL);
9760 mono_mb_emit_byte (mb, CEE_ADD);
9761 mono_mb_emit_byte (mb, CEE_RET);
9763 /* patch the branches to get here and throw */
9764 for (i = 1; i < rank; ++i) {
9765 mono_mb_patch_branch (mb, branch_positions [i]);
9767 mono_mb_patch_branch (mb, branch_pos);
9768 /* throw exception */
9769 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9771 g_free (branch_positions);
9772 #endif /* DISABLE_JIT */
9774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9775 info->d.element_addr.rank = rank;
9776 info->d.element_addr.elem_size = elem_size;
9777 ret = mono_mb_create (mb, sig, 4, info);
9780 /* cache the result */
9782 mono_marshal_lock ();
9783 for (i = 0; i < elem_addr_cache_next; ++i) {
9784 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9785 /* FIXME: free ret */
9786 ret = elem_addr_cache [i].method;
9792 if (elem_addr_cache_next >= elem_addr_cache_size) {
9793 int new_size = elem_addr_cache_size + 4;
9794 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9795 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9796 g_free (elem_addr_cache);
9797 elem_addr_cache = new_array;
9798 elem_addr_cache_size = new_size;
9800 elem_addr_cache [elem_addr_cache_next].rank = rank;
9801 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9802 elem_addr_cache [elem_addr_cache_next].method = ret;
9803 elem_addr_cache_next ++;
9805 mono_marshal_unlock ();
9810 * mono_marshal_get_array_accessor_wrapper:
9812 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9815 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9817 MonoMethodSignature *sig;
9818 MonoMethodBuilder *mb;
9822 MonoGenericContext *ctx = NULL;
9823 MonoMethod *orig_method = NULL;
9824 MonoGenericContainer *container = NULL;
9828 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9829 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9830 * FIXME: Use generic methods.
9837 g_assert_not_reached ();
9839 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9840 if ((res = mono_marshal_find_in_cache (cache, method)))
9844 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9847 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9850 /* Call the method */
9852 mono_mb_emit_ldarg (mb, 0);
9853 for (i = 0; i < sig->param_count; i++)
9854 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9858 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9859 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9861 mono_mb_emit_managed_call (mb, method, NULL);
9863 mono_mb_emit_byte (mb, CEE_RET);
9868 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9869 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9871 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9872 info->d.array_accessor.method = method;
9874 res = mono_mb_create_and_cache_full (cache, method,
9875 mb, sig, sig->param_count + 16,
9884 mono_marshal_alloc (gulong size)
9889 res = CoTaskMemAlloc (size);
9891 res = g_try_malloc ((gulong)size);
9893 mono_gc_out_of_memory ((gulong)size);
9899 mono_marshal_free (gpointer ptr)
9902 CoTaskMemFree (ptr);
9909 mono_marshal_free_array (gpointer *ptr, int size)
9916 for (i = 0; i < size; i++)
9922 mono_marshal_string_to_utf16 (MonoString *s)
9924 return s ? mono_string_chars (s) : NULL;
9928 mono_marshal_string_to_utf16_copy (MonoString *s)
9933 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9934 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9935 res [mono_string_length (s)] = 0;
9941 * mono_marshal_set_last_error:
9943 * This function is invoked to set the last error value from a P/Invoke call
9944 * which has SetLastError set.
9947 mono_marshal_set_last_error (void)
9950 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9952 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9957 mono_marshal_set_last_error_windows (int error)
9960 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9965 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9966 gpointer dest, gint32 length)
9971 MONO_CHECK_ARG_NULL (src,);
9972 MONO_CHECK_ARG_NULL (dest,);
9974 if (src->obj.vtable->klass->rank != 1) {
9975 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9978 if (start_index < 0) {
9979 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9983 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9986 if (start_index + length > mono_array_length (src)) {
9987 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9991 element_size = mono_array_element_size (src->obj.vtable->klass);
9993 /* no references should be involved */
9994 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9996 memcpy (dest, source_addr, length * element_size);
10000 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10001 MonoArray *dest, gint32 length)
10006 MONO_CHECK_ARG_NULL (src,);
10007 MONO_CHECK_ARG_NULL (dest,);
10009 if (dest->obj.vtable->klass->rank != 1) {
10010 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10013 if (start_index < 0) {
10014 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10018 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10021 if (start_index + length > mono_array_length (dest)) {
10022 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10025 element_size = mono_array_element_size (dest->obj.vtable->klass);
10027 /* no references should be involved */
10028 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10030 memcpy (dest_addr, src, length * element_size);
10034 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10039 return mono_string_new (mono_domain_get (), ptr);
10043 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10046 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10049 return mono_string_new_len (mono_domain_get (), ptr, len);
10054 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10056 MonoDomain *domain = mono_domain_get ();
10066 return mono_string_new_utf16 (domain, ptr, len);
10070 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10072 MonoDomain *domain = mono_domain_get ();
10075 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10078 return mono_string_new_utf16 (domain, ptr, len);
10083 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10085 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10089 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10095 MONO_CHECK_ARG_NULL (rtype, 0);
10097 type = rtype->type;
10098 klass = mono_class_from_mono_type (type);
10099 if (!mono_class_init (klass)) {
10100 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10104 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10106 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10107 return sizeof (gpointer);
10108 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10110 MonoException *exc;
10112 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10113 exc = mono_get_exception_argument ("t", msg);
10115 mono_set_pending_exception (exc);
10119 return mono_class_native_size (klass, NULL);
10123 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10125 MonoMethod *method;
10128 MONO_CHECK_ARG_NULL (obj,);
10129 MONO_CHECK_ARG_NULL (dst,);
10131 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10135 pa [2] = &delete_old;
10137 mono_runtime_invoke (method, NULL, pa, NULL);
10141 ptr_to_structure (gpointer src, MonoObject *dst)
10143 MonoMethod *method;
10146 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10151 mono_runtime_invoke (method, NULL, pa, NULL);
10155 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10159 MONO_CHECK_ARG_NULL (src,);
10160 MONO_CHECK_ARG_NULL (dst,);
10162 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10164 if (t->type == MONO_TYPE_VALUETYPE) {
10165 MonoException *exc;
10168 tmp = g_strdup_printf ("Destination is a boxed value type.");
10169 exc = mono_get_exception_argument ("dst", tmp);
10172 mono_set_pending_exception (exc);
10176 ptr_to_structure (src, dst);
10180 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10183 MonoDomain *domain = mono_domain_get ();
10188 MONO_CHECK_ARG_NULL (type, NULL);
10190 klass = mono_class_from_mono_type (type->type);
10191 if (!mono_class_init (klass)) {
10192 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10196 res = mono_object_new (domain, klass);
10198 ptr_to_structure (src, res);
10204 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10206 MonoMarshalType *info;
10209 int match_index = -1;
10211 MONO_CHECK_ARG_NULL (type, 0);
10212 MONO_CHECK_ARG_NULL (field_name, 0);
10214 fname = mono_string_to_utf8 (field_name);
10215 klass = mono_class_from_mono_type (type->type);
10216 if (!mono_class_init (klass)) {
10217 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10221 while (klass && match_index == -1) {
10222 MonoClassField* field;
10224 gpointer iter = NULL;
10225 while ((field = mono_class_get_fields (klass, &iter))) {
10226 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10228 if (!strcmp (fname, mono_field_get_name (field))) {
10235 if (match_index == -1)
10236 klass = klass->parent;
10241 if(match_index == -1) {
10242 MonoException* exc;
10245 /* Get back original class instance */
10246 klass = mono_class_from_mono_type (type->type);
10248 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10249 exc = mono_get_exception_argument ("fieldName", tmp);
10252 mono_set_pending_exception ((MonoException*)exc);
10256 info = mono_marshal_load_type_info (klass);
10257 return info->fields [match_index].offset;
10261 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10266 tres = mono_string_to_utf8 (string);
10270 len = strlen (tres) + 1;
10271 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10272 memcpy (ret, tres, len);
10277 return mono_string_to_utf8 (string);
10282 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10284 if (string == NULL)
10287 #ifdef TARGET_WIN32
10288 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10289 ((mono_string_length (string) + 1) * 2);
10291 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10293 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10294 res [mono_string_length (string)] = 0;
10300 mono_struct_delete_old (MonoClass *klass, char *ptr)
10302 MonoMarshalType *info;
10305 info = mono_marshal_load_type_info (klass);
10307 for (i = 0; i < info->num_fields; i++) {
10308 MonoMarshalConv conv;
10309 MonoType *ftype = info->fields [i].field->type;
10312 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10315 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10316 klass->unicode, &conv);
10318 cpos = ptr + info->fields [i].offset;
10321 case MONO_MARSHAL_CONV_NONE:
10322 if (MONO_TYPE_ISSTRUCT (ftype)) {
10323 mono_struct_delete_old (ftype->data.klass, cpos);
10327 case MONO_MARSHAL_CONV_STR_LPWSTR:
10328 /* We assume this field points inside a MonoString */
10330 case MONO_MARSHAL_CONV_STR_LPTSTR:
10331 #ifdef TARGET_WIN32
10332 /* We assume this field points inside a MonoString
10336 case MONO_MARSHAL_CONV_STR_LPSTR:
10337 case MONO_MARSHAL_CONV_STR_BSTR:
10338 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10339 case MONO_MARSHAL_CONV_STR_TBSTR:
10340 mono_marshal_free (*(gpointer *)cpos);
10350 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10354 MONO_CHECK_ARG_NULL (src,);
10355 MONO_CHECK_ARG_NULL (type,);
10357 klass = mono_class_from_mono_type (type->type);
10358 if (!mono_class_init (klass)) {
10359 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10363 mono_struct_delete_old (klass, (char *)src);
10367 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10371 if ((gulong)size == 0)
10372 /* This returns a valid pointer for size 0 on MS.NET */
10376 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10378 res = g_try_malloc ((gulong)size);
10381 mono_gc_out_of_memory ((gulong)size);
10387 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10392 mono_gc_out_of_memory ((gulong)size);
10397 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10399 res = g_try_realloc (ptr, (gulong)size);
10402 mono_gc_out_of_memory ((gulong)size);
10408 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10418 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10423 res = CoTaskMemAlloc (size);
10425 if ((gulong)size == 0)
10426 /* This returns a valid pointer for size 0 on MS.NET */
10429 res = g_try_malloc ((gulong)size);
10432 mono_gc_out_of_memory ((gulong)size);
10437 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10440 CoTaskMemFree (ptr);
10447 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10452 res = CoTaskMemRealloc (ptr, size);
10454 res = g_try_realloc (ptr, (gulong)size);
10457 mono_gc_out_of_memory ((gulong)size);
10462 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10464 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10468 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10470 MonoClass *klass = mono_type_get_class (type->type);
10471 if (!mono_class_init (klass)) {
10472 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10476 return mono_ftnptr_to_delegate (klass, ftn);
10480 * mono_marshal_is_loading_type_info:
10482 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10486 mono_marshal_is_loading_type_info (MonoClass *klass)
10488 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10490 return g_slist_find (loads_list, klass) != NULL;
10494 * mono_marshal_load_type_info:
10496 * Initialize klass->marshal_info using information from metadata. This function can
10497 * recursively call itself, and the caller is responsible to avoid that by calling
10498 * mono_marshal_is_loading_type_info () beforehand.
10500 * LOCKING: Acquires the loader lock.
10503 mono_marshal_load_type_info (MonoClass* klass)
10506 guint32 native_size = 0, min_align = 1, packing;
10507 MonoMarshalType *info;
10508 MonoClassField* field;
10511 GSList *loads_list;
10513 g_assert (klass != NULL);
10515 if (klass->marshal_info)
10516 return klass->marshal_info;
10518 if (!klass->inited)
10519 mono_class_init (klass);
10521 if (klass->marshal_info)
10522 return klass->marshal_info;
10525 * This function can recursively call itself, so we keep the list of classes which are
10526 * under initialization in a TLS list.
10528 g_assert (!mono_marshal_is_loading_type_info (klass));
10529 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10530 loads_list = g_slist_prepend (loads_list, klass);
10531 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10534 while ((field = mono_class_get_fields (klass, &iter))) {
10535 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10537 if (mono_field_is_deleted (field))
10542 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10544 /* The mempool is protected by the loader lock */
10545 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10546 info->num_fields = count;
10548 /* Try to find a size for this type in metadata */
10549 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10551 if (klass->parent) {
10552 int parent_size = mono_class_native_size (klass->parent, NULL);
10554 /* Add parent size to real size */
10555 native_size += parent_size;
10556 info->native_size = parent_size;
10559 packing = klass->packing_size ? klass->packing_size : 8;
10562 while ((field = mono_class_get_fields (klass, &iter))) {
10566 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10569 if (mono_field_is_deleted (field))
10571 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10572 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10573 NULL, NULL, &info->fields [j].mspec);
10575 info->fields [j].field = field;
10577 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10578 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10579 /* This field is a hack inserted by MCS to empty structures */
10584 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10585 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10586 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10587 &align, TRUE, klass->unicode);
10588 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10589 min_align = MAX (align, min_align);
10590 info->fields [j].offset = info->native_size;
10591 info->fields [j].offset += align - 1;
10592 info->fields [j].offset &= ~(align - 1);
10593 info->native_size = info->fields [j].offset + size;
10595 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10596 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10597 &align, TRUE, klass->unicode);
10598 min_align = MAX (align, min_align);
10599 info->fields [j].offset = field->offset - sizeof (MonoObject);
10600 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10606 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10607 info->native_size = MAX (native_size, info->native_size);
10609 * If the provided Size is equal or larger than the calculated size, and there
10610 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10612 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10613 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10616 min_align = MIN (min_align, packing);
10620 if (info->native_size & (min_align - 1)) {
10621 info->native_size += min_align - 1;
10622 info->native_size &= ~(min_align - 1);
10625 info->min_align = min_align;
10627 /* Update the class's blittable info, if the layouts don't match */
10628 if (info->native_size != mono_class_value_size (klass, NULL))
10629 klass->blittable = FALSE;
10631 /* If this is an array type, ensure that we have element info */
10632 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10633 mono_marshal_load_type_info (klass->element_class);
10636 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10637 loads_list = g_slist_remove (loads_list, klass);
10638 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10640 mono_marshal_lock ();
10641 if (!klass->marshal_info) {
10642 /*We do double-checking locking on marshal_info */
10643 mono_memory_barrier ();
10644 klass->marshal_info = info;
10646 mono_marshal_unlock ();
10648 return klass->marshal_info;
10652 * mono_class_native_size:
10655 * Returns: the native size of an object instance (when marshaled
10656 * to unmanaged code)
10659 mono_class_native_size (MonoClass *klass, guint32 *align)
10661 if (!klass->marshal_info) {
10662 if (mono_marshal_is_loading_type_info (klass)) {
10667 mono_marshal_load_type_info (klass);
10672 *align = klass->marshal_info->min_align;
10674 return klass->marshal_info->native_size;
10678 * mono_type_native_stack_size:
10679 * @t: the type to return the size it uses on the stack
10681 * Returns: the number of bytes required to hold an instance of this
10682 * type on the native stack
10685 mono_type_native_stack_size (MonoType *t, guint32 *align)
10689 g_assert (t != NULL);
10695 *align = sizeof (gpointer);
10696 return sizeof (gpointer);
10700 case MONO_TYPE_BOOLEAN:
10701 case MONO_TYPE_CHAR:
10712 case MONO_TYPE_STRING:
10713 case MONO_TYPE_OBJECT:
10714 case MONO_TYPE_CLASS:
10715 case MONO_TYPE_SZARRAY:
10716 case MONO_TYPE_PTR:
10717 case MONO_TYPE_FNPTR:
10718 case MONO_TYPE_ARRAY:
10719 *align = sizeof (gpointer);
10720 return sizeof (gpointer);
10725 *align = MONO_ABI_ALIGNOF (double);
10729 *align = MONO_ABI_ALIGNOF (gint64);
10731 case MONO_TYPE_GENERICINST:
10732 if (!mono_type_generic_inst_is_valuetype (t)) {
10733 *align = sizeof (gpointer);
10734 return sizeof (gpointer);
10737 case MONO_TYPE_TYPEDBYREF:
10738 case MONO_TYPE_VALUETYPE: {
10740 MonoClass *klass = mono_class_from_mono_type (t);
10742 if (klass->enumtype)
10743 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10745 size = mono_class_native_size (klass, align);
10746 *align = *align + 3;
10756 g_error ("type 0x%02x unknown", t->type);
10762 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10763 gboolean as_field, gboolean unicode)
10765 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10768 switch (native_type) {
10769 case MONO_NATIVE_BOOLEAN:
10772 case MONO_NATIVE_I1:
10773 case MONO_NATIVE_U1:
10776 case MONO_NATIVE_I2:
10777 case MONO_NATIVE_U2:
10778 case MONO_NATIVE_VARIANTBOOL:
10781 case MONO_NATIVE_I4:
10782 case MONO_NATIVE_U4:
10783 case MONO_NATIVE_ERROR:
10786 case MONO_NATIVE_I8:
10787 case MONO_NATIVE_U8:
10788 *align = MONO_ABI_ALIGNOF (gint64);
10790 case MONO_NATIVE_R4:
10793 case MONO_NATIVE_R8:
10794 *align = MONO_ABI_ALIGNOF (double);
10796 case MONO_NATIVE_INT:
10797 case MONO_NATIVE_UINT:
10798 case MONO_NATIVE_LPSTR:
10799 case MONO_NATIVE_LPWSTR:
10800 case MONO_NATIVE_LPTSTR:
10801 case MONO_NATIVE_BSTR:
10802 case MONO_NATIVE_ANSIBSTR:
10803 case MONO_NATIVE_TBSTR:
10804 case MONO_NATIVE_LPARRAY:
10805 case MONO_NATIVE_SAFEARRAY:
10806 case MONO_NATIVE_IUNKNOWN:
10807 case MONO_NATIVE_IDISPATCH:
10808 case MONO_NATIVE_INTERFACE:
10809 case MONO_NATIVE_ASANY:
10810 case MONO_NATIVE_FUNC:
10811 case MONO_NATIVE_LPSTRUCT:
10812 *align = MONO_ABI_ALIGNOF (gpointer);
10813 return sizeof (gpointer);
10814 case MONO_NATIVE_STRUCT:
10815 klass = mono_class_from_mono_type (type);
10816 if (klass == mono_defaults.object_class &&
10817 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10821 return mono_class_native_size (klass, align);
10822 case MONO_NATIVE_BYVALTSTR: {
10823 int esize = unicode ? 2: 1;
10826 return mspec->data.array_data.num_elem * esize;
10828 case MONO_NATIVE_BYVALARRAY: {
10829 // FIXME: Have to consider ArraySubType
10831 klass = mono_class_from_mono_type (type);
10832 if (klass->element_class == mono_defaults.char_class) {
10833 esize = unicode ? 2 : 1;
10836 esize = mono_class_native_size (klass->element_class, align);
10839 return mspec->data.array_data.num_elem * esize;
10841 case MONO_NATIVE_CUSTOM:
10842 *align = sizeof (gpointer);
10843 return sizeof (gpointer);
10845 case MONO_NATIVE_CURRENCY:
10846 case MONO_NATIVE_VBBYREFSTR:
10848 g_error ("native type %02x not implemented", native_type);
10851 g_assert_not_reached ();
10856 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10864 t = &o->vtable->klass->byval_arg;
10868 case MONO_TYPE_PTR:
10871 case MONO_TYPE_BOOLEAN:
10874 case MONO_TYPE_CHAR:
10879 return mono_object_unbox (o);
10881 case MONO_TYPE_STRING:
10882 switch (string_encoding) {
10883 case MONO_NATIVE_LPWSTR:
10884 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10886 case MONO_NATIVE_LPSTR:
10887 return mono_string_to_lpstr ((MonoString*)o);
10890 g_warning ("marshaling conversion %d not implemented", string_encoding);
10891 g_assert_not_reached ();
10894 case MONO_TYPE_CLASS:
10895 case MONO_TYPE_VALUETYPE: {
10896 MonoMethod *method;
10899 MonoBoolean delete_old = FALSE;
10901 klass = t->data.klass;
10903 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10906 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10907 klass->blittable || klass->enumtype))
10908 return mono_object_unbox (o);
10910 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10912 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10913 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10917 pa [2] = &delete_old;
10919 mono_runtime_invoke (method, NULL, pa, NULL);
10927 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10932 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10940 t = &o->vtable->klass->byval_arg;
10942 case MONO_TYPE_STRING:
10943 switch (string_encoding) {
10944 case MONO_NATIVE_LPWSTR:
10945 case MONO_NATIVE_LPSTR:
10946 mono_marshal_free (ptr);
10949 g_warning ("marshaling conversion %d not implemented", string_encoding);
10950 g_assert_not_reached ();
10953 case MONO_TYPE_CLASS:
10954 case MONO_TYPE_VALUETYPE: {
10955 klass = t->data.klass;
10957 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10958 klass->blittable || klass->enumtype))
10961 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10962 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10968 mono_runtime_invoke (method, NULL, pa, NULL);
10971 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10972 mono_struct_delete_old (klass, ptr);
10975 mono_marshal_free (ptr);
10984 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10986 MonoMethodSignature *sig, *csig;
10987 MonoMethodBuilder *mb;
10992 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10993 mb->method->slot = -1;
10995 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10996 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10998 sig = mono_method_signature (method);
10999 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11000 csig->generic_param_count = 0;
11002 #ifndef DISABLE_JIT
11003 mono_mb_emit_ldarg (mb, 0);
11004 for (i = 0; i < csig->param_count; i++)
11005 mono_mb_emit_ldarg (mb, i + 1);
11006 mono_mb_emit_managed_call (mb, method, NULL);
11007 mono_mb_emit_byte (mb, CEE_RET);
11009 /* We can corlib internal methods */
11010 mb->skip_visibility = TRUE;
11012 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11013 info->d.generic_array_helper.method = method;
11014 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11022 * The mono_win32_compat_* functions are implementations of inline
11023 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11024 * although not exported by kernel32.
11026 * We map the appropiate kernel32 entries to these functions using
11027 * dllmaps declared in the global etc/mono/config.
11031 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11033 if (!dest || !source)
11036 memcpy (dest, source, length);
11040 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11042 memset (dest, fill, length);
11046 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11048 if (!dest || !source)
11051 memmove (dest, source, length);
11055 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11057 memset (dest, 0, length);
11061 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11066 for (i = 0; i < len; ++i)
11070 g_assert (i < len);
11073 while (byte && !(byte & 1))
11075 g_assert (byte == 1);
11078 *bitmask = buf [i];
11082 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11084 MonoMethodBuilder *mb;
11085 MonoMethodSignature *sig, *csig;
11086 MonoExceptionClause *clause;
11091 int i, param_count, sig_size, pos_leave;
11095 klass = method->klass;
11096 image = method->klass->image;
11097 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11099 if ((res = mono_marshal_find_in_cache (cache, method)))
11102 sig = mono_method_signature (method);
11103 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11105 /* add "this" and exception param */
11106 param_count = sig->param_count + sig->hasthis + 1;
11108 /* dup & extend signature */
11109 csig = mono_metadata_signature_alloc (image, param_count);
11110 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11111 memcpy (csig, sig, sig_size);
11112 csig->param_count = param_count;
11115 csig->call_convention = MONO_CALL_DEFAULT;
11117 if (sig->hasthis) {
11119 csig->params [0] = &klass->byval_arg;
11120 /* move params up by one */
11121 for (i = 0; i < sig->param_count; i++)
11122 csig->params [i + 1] = sig->params [i];
11125 /* setup exception param as byref+[out] */
11126 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11127 &mono_defaults.exception_class->byval_arg);
11128 csig->params [param_count - 1]->byref = 1;
11129 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11131 /* convert struct return to object */
11132 if (MONO_TYPE_ISSTRUCT (sig->ret))
11133 csig->ret = &mono_defaults.object_class->byval_arg;
11135 #ifndef DISABLE_JIT
11136 /* local 0 (temp for exception object) */
11137 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11139 /* local 1 (temp for result) */
11140 if (!MONO_TYPE_IS_VOID (sig->ret))
11141 mono_mb_add_local (mb, sig->ret);
11143 /* clear exception arg */
11144 mono_mb_emit_ldarg (mb, param_count - 1);
11145 mono_mb_emit_byte (mb, CEE_LDNULL);
11146 mono_mb_emit_byte (mb, CEE_STIND_REF);
11149 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11150 clause->try_offset = mono_mb_get_label (mb);
11152 /* push method's args */
11153 for (i = 0; i < param_count - 1; i++) {
11157 mono_mb_emit_ldarg (mb, i);
11159 /* get the byval type of the param */
11160 klass = mono_class_from_mono_type (csig->params [i]);
11161 type = &klass->byval_arg;
11163 /* unbox struct args */
11164 if (MONO_TYPE_ISSTRUCT (type)) {
11165 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11167 /* byref args & and the "this" arg must remain a ptr.
11168 Otherwise make a copy of the value type */
11169 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11170 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11172 csig->params [i] = &mono_defaults.object_class->byval_arg;
11177 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11178 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11180 mono_mb_emit_op (mb, CEE_CALL, method);
11182 /* save result at local 1 */
11183 if (!MONO_TYPE_IS_VOID (sig->ret))
11184 mono_mb_emit_stloc (mb, 1);
11186 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11189 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11190 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11191 clause->data.catch_class = mono_defaults.object_class;
11193 clause->handler_offset = mono_mb_get_label (mb);
11195 /* store exception at local 0 */
11196 mono_mb_emit_stloc (mb, 0);
11197 mono_mb_emit_ldarg (mb, param_count - 1);
11198 mono_mb_emit_ldloc (mb, 0);
11199 mono_mb_emit_byte (mb, CEE_STIND_REF);
11200 mono_mb_emit_branch (mb, CEE_LEAVE);
11202 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11204 mono_mb_set_clauses (mb, 1, clause);
11206 mono_mb_patch_branch (mb, pos_leave);
11209 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11210 mono_mb_emit_ldloc (mb, 1);
11212 /* box the return value */
11213 if (MONO_TYPE_ISSTRUCT (sig->ret))
11214 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11217 mono_mb_emit_byte (mb, CEE_RET);
11220 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11227 * mono_marshal_free_dynamic_wrappers:
11229 * Free wrappers of the dynamic method METHOD.
11232 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11234 MonoImage *image = method->klass->image;
11236 g_assert (method_is_dynamic (method));
11238 /* This could be called during shutdown */
11239 if (marshal_mutex_initialized)
11240 mono_marshal_lock ();
11242 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11243 * they could be shared with other methods ?
11245 if (image->runtime_invoke_direct_cache)
11246 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11247 if (image->delegate_abstract_invoke_cache)
11248 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11249 // FIXME: Need to clear the caches in other images as well
11250 if (image->delegate_bound_static_invoke_cache)
11251 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11253 if (marshal_mutex_initialized)
11254 mono_marshal_unlock ();
11258 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11260 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11261 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11263 return mono_metadata_signature_equal (pair->sig, sig);
11267 * mono_marshal_free_inflated_wrappers:
11269 * Free wrappers of the inflated method METHOD.
11272 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11274 MonoMethodSignature *sig = method->signature;
11276 g_assert (method->is_inflated);
11278 /* Ignore calls occuring late during cleanup. */
11279 if (!marshal_mutex_initialized)
11282 mono_marshal_lock ();
11284 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11285 * they could be shared with other methods ?
11289 * indexed by MonoMethodSignature
11291 /* FIXME: This could remove unrelated wrappers as well */
11292 if (sig && method->klass->image->delegate_begin_invoke_cache)
11293 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11294 if (sig && method->klass->image->delegate_end_invoke_cache)
11295 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11296 if (sig && method->klass->image->delegate_invoke_cache)
11297 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11298 if (sig && method->klass->image->runtime_invoke_cache)
11299 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11300 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11301 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11304 * indexed by SignaturePointerPair
11306 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11307 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11308 signature_pointer_pair_matches_signature, (gpointer)sig);
11311 * indexed by MonoMethod pointers
11313 if (method->klass->image->runtime_invoke_direct_cache)
11314 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11315 if (method->klass->image->managed_wrapper_cache)
11316 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11317 if (method->klass->image->native_wrapper_cache)
11318 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11319 if (method->klass->image->remoting_invoke_cache)
11320 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11321 if (method->klass->image->synchronized_cache)
11322 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11323 if (method->klass->image->unbox_wrapper_cache)
11324 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11325 if (method->klass->image->cominterop_invoke_cache)
11326 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11327 if (method->klass->image->cominterop_wrapper_cache)
11328 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11329 if (method->klass->image->thunk_invoke_cache)
11330 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11331 if (method->klass->image->native_func_wrapper_aot_cache)
11332 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11334 mono_marshal_unlock ();