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)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-error-internals.h>
53 /* #define DEBUG_RUNTIME_CODE */
55 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
59 #include "mono/cil/opcode.def"
65 * This mutex protects the various marshalling related caches in MonoImage
66 * and a few other data structures static to this file.
68 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
69 * runtime locking latice. Which means it can take simple locks suck as the image lock.
71 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
72 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
73 static mono_mutex_t marshal_mutex;
74 static gboolean marshal_mutex_initialized;
76 static MonoNativeTlsKey last_error_tls_id;
78 static MonoNativeTlsKey load_type_info_tls_id;
80 static gboolean use_aot_wrappers;
82 static void ftnptr_eh_callback_default (guint32 gchandle);
84 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
87 delegate_hash_table_add (MonoDelegate *d);
90 delegate_hash_table_remove (MonoDelegate *d);
93 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
96 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
99 mono_struct_delete_old (MonoClass *klass, char *ptr);
102 mono_marshal_string_to_utf16 (MonoString *s);
105 mono_marshal_string_to_utf16_copy (MonoString *s);
108 mono_string_to_lpstr (MonoString *string_obj);
110 static MonoStringBuilder *
111 mono_string_utf8_to_builder2 (char *text);
113 static MonoStringBuilder *
114 mono_string_utf16_to_builder2 (gunichar2 *text);
117 mono_string_new_len_wrapper (const char *text, guint length);
120 mono_string_from_byvalstr (const char *data, int len);
123 mono_string_from_byvalwstr (gunichar2 *data, int len);
126 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
129 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
132 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
135 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
137 static MonoAsyncResult *
138 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
141 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_marshal_set_last_error_windows (int error);
147 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
149 static void init_safe_handle (void);
152 ves_icall_marshal_alloc (gulong size);
155 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
158 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
161 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
164 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
167 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
170 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
173 mono_delegate_to_ftnptr (MonoDelegate *delegate);
176 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
179 mono_array_to_savearray (MonoArray *array);
182 mono_array_to_lparray (MonoArray *array);
185 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
188 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
191 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
194 mono_array_to_savearray (MonoArray *array);
197 mono_array_to_lparray (MonoArray *array);
200 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
203 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
205 /* Lazy class loading functions */
206 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
207 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
208 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
211 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
212 static MonoMethod *sh_dangerous_add_ref;
213 static MonoMethod *sh_dangerous_release;
218 sh_dangerous_add_ref = mono_class_get_method_from_name (
219 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
220 sh_dangerous_release = mono_class_get_method_from_name (
221 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
225 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
227 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
229 mono_register_jit_icall (func, name, sig, no_wrapper);
233 mono_signature_no_pinvoke (MonoMethod *method)
235 MonoMethodSignature *sig = mono_method_signature (method);
237 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
238 sig->pinvoke = FALSE;
245 mono_marshal_init_tls (void)
247 mono_native_tls_alloc (&last_error_tls_id, NULL);
248 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
252 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
255 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
256 mono_error_set_pending_exception (&error);
261 ves_icall_mono_string_from_utf16 (gunichar2 *data)
264 MonoString *result = mono_string_from_utf16_checked (data, &error);
265 mono_error_set_pending_exception (&error);
270 mono_marshal_init (void)
272 static gboolean module_initialized = FALSE;
274 if (!module_initialized) {
275 module_initialized = TRUE;
276 mono_os_mutex_init_recursive (&marshal_mutex);
277 marshal_mutex_initialized = TRUE;
279 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
280 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
281 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
282 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
283 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
284 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
285 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
286 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
287 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
288 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
289 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
290 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
291 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
292 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
293 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
294 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
295 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
296 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
297 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
298 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
299 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
300 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
301 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
302 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
303 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
304 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
305 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
306 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
307 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
308 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
309 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
310 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
311 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
312 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
313 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
314 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
315 register_icall (g_free, "g_free", "void ptr", FALSE);
316 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
317 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
318 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
319 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
320 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
321 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
322 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
323 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
324 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
325 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
326 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
327 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
328 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
330 mono_cominterop_init ();
331 mono_remoting_init ();
336 mono_marshal_cleanup (void)
338 mono_cominterop_cleanup ();
340 mono_native_tls_free (load_type_info_tls_id);
341 mono_native_tls_free (last_error_tls_id);
342 mono_os_mutex_destroy (&marshal_mutex);
343 marshal_mutex_initialized = FALSE;
347 mono_marshal_lock_internal (void)
349 mono_marshal_lock ();
353 mono_marshal_unlock_internal (void)
355 mono_marshal_unlock ();
358 /* This is a JIT icall, it sets the pending exception and return NULL on error */
360 mono_delegate_to_ftnptr (MonoDelegate *delegate)
363 MonoMethod *method, *wrapper;
365 uint32_t target_handle = 0;
370 if (delegate->delegate_trampoline)
371 return delegate->delegate_trampoline;
373 klass = ((MonoObject *)delegate)->vtable->klass;
374 g_assert (klass->delegate);
376 method = delegate->method;
377 if (delegate->method_is_virtual)
378 method = mono_object_get_virtual_method (delegate->target, method);
380 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
381 const char *exc_class, *exc_arg;
384 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
386 g_assert (exc_class);
387 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
393 if (delegate->target) {
394 /* Produce a location which can be embedded in JITted code */
395 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
398 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
400 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
404 // Add the delegate to the delegate hash table
405 delegate_hash_table_add (delegate);
407 /* when the object is collected, collect the dynamic method, too */
408 mono_object_register_finalizer ((MonoObject*)delegate, &error);
412 return delegate->delegate_trampoline;
415 delegate_hash_table_remove (delegate);
417 mono_gchandle_free (target_handle);
418 mono_error_set_pending_exception (&error);
423 * this hash table maps from a delegate trampoline object to a weak reference
424 * of the delegate. As an optimizations with a non-moving GC we store the
425 * object pointer itself, otherwise we use a GC handle.
427 static GHashTable *delegate_hash_table;
430 delegate_hash_table_new (void) {
431 return g_hash_table_new (NULL, NULL);
435 delegate_hash_table_remove (MonoDelegate *d)
437 guint32 gchandle = 0;
439 mono_marshal_lock ();
440 if (delegate_hash_table == NULL)
441 delegate_hash_table = delegate_hash_table_new ();
442 if (mono_gc_is_moving ())
443 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
444 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
445 mono_marshal_unlock ();
446 if (gchandle && mono_gc_is_moving ())
447 mono_gchandle_free (gchandle);
451 delegate_hash_table_add (MonoDelegate *d)
454 guint32 old_gchandle;
456 mono_marshal_lock ();
457 if (delegate_hash_table == NULL)
458 delegate_hash_table = delegate_hash_table_new ();
459 if (mono_gc_is_moving ()) {
460 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
461 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
462 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
464 mono_gchandle_free (old_gchandle);
466 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
468 mono_marshal_unlock ();
472 * mono_marshal_use_aot_wrappers:
474 * Instructs this module to use AOT compatible wrappers.
477 mono_marshal_use_aot_wrappers (gboolean use)
479 use_aot_wrappers = use;
483 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
486 MonoCustomAttrInfo *cinfo;
487 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
489 /* The attribute is only available in Net 2.0 */
490 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
492 * The pinvoke attributes are stored in a real custom attribute so we have to
495 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
496 if (!mono_error_ok (&error)) {
497 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
498 mono_error_cleanup (&error);
500 if (cinfo && !mono_runtime_get_no_exec ()) {
501 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
503 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
505 if (!mono_error_ok (&error)) {
506 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
507 mono_error_cleanup (&error);
511 mono_custom_attrs_free (cinfo);
516 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
518 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
527 mono_marshal_lock ();
528 if (delegate_hash_table == NULL)
529 delegate_hash_table = delegate_hash_table_new ();
531 if (mono_gc_is_moving ()) {
532 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
533 mono_marshal_unlock ();
535 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
539 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
540 mono_marshal_unlock ();
543 /* This is a native function, so construct a delegate for it */
544 MonoMethodSignature *sig;
546 MonoMarshalSpec **mspecs;
547 MonoMethod *invoke = mono_get_delegate_invoke (klass);
548 MonoMethodPInvoke piinfo;
549 MonoObject *this_obj;
552 if (use_aot_wrappers) {
553 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
554 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
555 if (!is_ok (&error)) {
556 mono_error_set_pending_exception (&error);
560 memset (&piinfo, 0, sizeof (piinfo));
561 parse_unmanaged_function_pointer_attr (klass, &piinfo);
563 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
564 mono_method_get_marshal_info (invoke, mspecs);
565 /* Freed below so don't alloc from mempool */
566 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
569 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
572 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
574 mono_metadata_free_marshal_spec (mspecs [i]);
579 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
580 if (!mono_error_ok (&error)) {
581 mono_error_set_pending_exception (&error);
584 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
585 if (mono_error_set_pending_exception (&error))
587 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
588 if (mono_error_set_pending_exception (&error))
592 if (d->object.vtable->domain != mono_domain_get ()) {
593 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
601 mono_delegate_free_ftnptr (MonoDelegate *delegate)
606 delegate_hash_table_remove (delegate);
608 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
610 if (!delegate->target) {
611 /* The wrapper method is shared between delegates -> no need to free it */
620 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
623 method = mono_jit_info_get_method (ji);
624 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
626 /*the target gchandle is the first entry after size and the wrapper itself.*/
627 gchandle = GPOINTER_TO_UINT (method_data [2]);
630 mono_gchandle_free (gchandle);
632 mono_runtime_free_method (mono_object_domain (delegate), method);
636 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
638 mono_string_from_byvalstr (const char *data, int max_len)
641 MonoDomain *domain = mono_domain_get ();
647 while (len < max_len - 1 && data [len])
650 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
651 mono_error_set_pending_exception (&error);
655 /* This is a JIT icall, it sets the pending exception and return NULL on error */
657 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
660 MonoString *res = NULL;
661 MonoDomain *domain = mono_domain_get ();
667 while (data [len]) len++;
669 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
670 if (!mono_error_ok (&error)) {
671 mono_error_set_pending_exception (&error);
678 mono_array_to_savearray (MonoArray *array)
683 g_assert_not_reached ();
688 mono_array_to_lparray (MonoArray *array)
691 gpointer *nativeArray = NULL;
692 int nativeArraySize = 0;
702 klass = array->obj.vtable->klass;
704 switch (klass->element_class->byval_arg.type) {
706 g_assert_not_reached ();
708 case MONO_TYPE_CLASS:
709 nativeArraySize = array->max_length;
710 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
711 for(i = 0; i < nativeArraySize; ++i)
712 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
715 case MONO_TYPE_BOOLEAN:
728 case MONO_TYPE_VALUETYPE:
732 case MONO_TYPE_GENERICINST:
733 case MONO_TYPE_OBJECT:
734 case MONO_TYPE_ARRAY:
735 case MONO_TYPE_SZARRAY:
736 case MONO_TYPE_STRING:
738 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
739 g_assert_not_reached ();
742 return array->vector;
746 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
757 klass = array->obj.vtable->klass;
759 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
760 for(i = 0; i < array->max_length; ++i)
761 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
768 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
770 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
772 if (elclass == mono_defaults.byte_class) {
773 GError *error = NULL;
777 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
780 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
784 g_error_free (error);
787 g_assert_not_reached ();
791 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
793 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
796 /* This is a JIT icall, it sets the pending exception and returns on error */
798 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
800 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
802 if (elclass == mono_defaults.byte_class) {
804 GError *error = NULL;
806 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
808 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
809 g_error_free (error);
813 memcpy (native_arr, as, MIN (strlen (as), elnum));
816 g_assert_not_reached ();
821 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
823 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
826 static MonoStringBuilder *
827 mono_string_builder_new (int starting_string_length)
829 static MonoClass *string_builder_class;
830 static MonoMethod *sb_ctor;
831 static void *args [1];
834 int initial_len = starting_string_length;
840 MonoMethodDesc *desc;
843 string_builder_class = mono_class_get_string_builder_class ();
844 g_assert (string_builder_class);
845 desc = mono_method_desc_new (":.ctor(int)", FALSE);
846 m = mono_method_desc_search_in_class (desc, string_builder_class);
848 mono_method_desc_free (desc);
849 mono_memory_barrier ();
853 // We make a new array in the _to_builder function, so this
854 // array will always be garbage collected.
855 args [0] = &initial_len;
857 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
858 mono_error_assert_ok (&error);
861 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
862 g_assert (exc == NULL);
863 mono_error_assert_ok (&error);
865 g_assert (sb->chunkChars->max_length >= initial_len);
871 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
873 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
874 gunichar2 *charSrc = (gunichar2 *)text;
875 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
877 sb->chunkLength = string_len;
883 mono_string_utf16_to_builder2 (gunichar2 *text)
889 for (len = 0; text [len] != 0; ++len);
891 MonoStringBuilder *sb = mono_string_builder_new (len);
892 mono_string_utf16_to_builder (sb, text);
898 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
903 int len = strlen (text);
904 if (len > mono_string_builder_capacity (sb))
905 len = mono_string_builder_capacity (sb);
907 GError *error = NULL;
909 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
912 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
913 mono_string_utf16_to_builder_copy (sb, ut, copied);
915 g_error_free (error);
921 mono_string_utf8_to_builder2 (char *text)
926 int len = strlen (text);
927 MonoStringBuilder *sb = mono_string_builder_new (len);
928 mono_string_utf8_to_builder (sb, text);
935 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
941 for (len = 0; text [len] != 0; ++len);
943 if (len > mono_string_builder_capacity (sb))
944 len = mono_string_builder_capacity (sb);
946 mono_string_utf16_to_builder_copy (sb, text, len);
950 * mono_string_builder_to_utf8:
951 * @sb: the string builder
953 * Converts to utf8 the contents of the MonoStringBuilder.
955 * Returns: a utf8 string with the contents of the StringBuilder.
957 * The return value must be released with g_free.
959 * This is a JIT icall, it sets the pending exception and returns NULL on error.
962 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
965 GError *gerror = NULL;
970 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
972 guint str_len = mono_string_builder_string_length (sb);
974 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
977 g_error_free (gerror);
979 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
982 guint len = mono_string_builder_capacity (sb) + 1;
983 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
984 if (!mono_error_ok (&error)) {
987 mono_error_set_pending_exception (&error);
991 g_assert (str_len < len);
992 memcpy (res, tmp, str_len * sizeof (gchar));
1002 * mono_string_builder_to_utf16:
1003 * @sb: the string builder
1005 * Converts to utf16 the contents of the MonoStringBuilder.
1007 * Returns: a utf16 string with the contents of the StringBuilder.
1009 * The return value must not be freed.
1010 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1013 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1020 g_assert (sb->chunkChars);
1022 guint len = mono_string_builder_capacity (sb);
1027 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1028 if (!mono_error_ok (&error)) {
1029 mono_error_set_pending_exception (&error);
1038 MonoStringBuilder* chunk = sb;
1040 if (chunk->chunkLength > 0) {
1041 // Check that we will not overrun our boundaries.
1042 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1044 if (chunk->chunkLength <= len) {
1045 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1047 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1050 len -= chunk->chunkLength;
1052 chunk = chunk->chunkPrevious;
1053 } while (chunk != NULL);
1058 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1060 mono_string_to_lpstr (MonoString *s)
1065 GError *error = NULL;
1071 as = CoTaskMemAlloc (1);
1076 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1078 MonoException *exc = mono_get_exception_argument ("string", error->message);
1079 g_error_free (error);
1080 mono_set_pending_exception (exc);
1083 as = CoTaskMemAlloc (len + 1);
1084 memcpy (as, tmp, len + 1);
1089 return mono_string_to_utf8 (s);
1094 mono_string_to_ansibstr (MonoString *string_obj)
1096 g_error ("UnmanagedMarshal.BStr is not implemented.");
1101 * mono_string_to_byvalstr:
1102 * @dst: Where to store the null-terminated utf8 decoded string.
1103 * @src: the MonoString to copy.
1104 * @size: the maximum number of bytes to copy.
1106 * Copies the MonoString pointed to by @src as a utf8 string
1107 * into @dst, it copies at most @size bytes into the destination.
1110 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1115 g_assert (dst != NULL);
1116 g_assert (size > 0);
1118 memset (dst, 0, size);
1122 s = mono_string_to_utf8 (src);
1123 len = MIN (size, strlen (s));
1126 memcpy (dst, s, len);
1131 * mono_string_to_byvalwstr:
1132 * @dst: Where to store the null-terminated utf16 decoded string.
1133 * @src: the MonoString to copy.
1134 * @size: the maximum number of bytes to copy.
1136 * Copies the MonoString pointed to by @src as a utf16 string into
1137 * @dst, it copies at most @size bytes into the destination (including
1138 * a terminating 16-bit zero terminator).
1141 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1145 g_assert (dst != NULL);
1146 g_assert (size > 1);
1149 memset (dst, 0, size * 2);
1153 len = MIN (size, (mono_string_length (src)));
1154 memcpy (dst, mono_string_chars (src), size * 2);
1155 if (size <= mono_string_length (src))
1157 *((gunichar2 *) dst + len) = 0;
1160 /* this is an icall, it sets the pending exception and returns NULL on error */
1162 mono_string_new_len_wrapper (const char *text, guint length)
1165 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1166 mono_error_set_pending_exception (&error);
1173 * mono_mb_emit_exception_marshal_directive:
1175 * This function assumes ownership of MSG, which should be malloc-ed.
1178 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1183 s = mono_image_strdup (mb->method->klass->image, msg);
1188 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1191 #endif /* !DISABLE_JIT */
1194 mono_type_to_ldind (MonoType *type)
1200 switch (type->type) {
1202 return CEE_LDIND_I1;
1204 case MONO_TYPE_BOOLEAN:
1205 return CEE_LDIND_U1;
1207 return CEE_LDIND_I2;
1209 case MONO_TYPE_CHAR:
1210 return CEE_LDIND_U2;
1212 return CEE_LDIND_I4;
1214 return CEE_LDIND_U4;
1218 case MONO_TYPE_FNPTR:
1220 case MONO_TYPE_CLASS:
1221 case MONO_TYPE_STRING:
1222 case MONO_TYPE_OBJECT:
1223 case MONO_TYPE_SZARRAY:
1224 case MONO_TYPE_ARRAY:
1225 return CEE_LDIND_REF;
1228 return CEE_LDIND_I8;
1230 return CEE_LDIND_R4;
1232 return CEE_LDIND_R8;
1233 case MONO_TYPE_VALUETYPE:
1234 if (type->data.klass->enumtype) {
1235 type = mono_class_enum_basetype (type->data.klass);
1239 case MONO_TYPE_TYPEDBYREF:
1241 case MONO_TYPE_GENERICINST:
1242 type = &type->data.generic_class->container_class->byval_arg;
1245 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1251 mono_type_to_stind (MonoType *type)
1254 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1258 switch (type->type) {
1261 case MONO_TYPE_BOOLEAN:
1262 return CEE_STIND_I1;
1265 case MONO_TYPE_CHAR:
1266 return CEE_STIND_I2;
1269 return CEE_STIND_I4;
1273 case MONO_TYPE_FNPTR:
1275 case MONO_TYPE_CLASS:
1276 case MONO_TYPE_STRING:
1277 case MONO_TYPE_OBJECT:
1278 case MONO_TYPE_SZARRAY:
1279 case MONO_TYPE_ARRAY:
1280 return CEE_STIND_REF;
1283 return CEE_STIND_I8;
1285 return CEE_STIND_R4;
1287 return CEE_STIND_R8;
1288 case MONO_TYPE_VALUETYPE:
1289 if (type->data.klass->enumtype) {
1290 type = mono_class_enum_basetype (type->data.klass);
1294 case MONO_TYPE_TYPEDBYREF:
1296 case MONO_TYPE_GENERICINST:
1297 type = &type->data.generic_class->container_class->byval_arg;
1300 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1308 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1311 case MONO_MARSHAL_CONV_BOOL_I4:
1312 mono_mb_emit_ldloc (mb, 1);
1313 mono_mb_emit_ldloc (mb, 0);
1314 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1315 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1316 mono_mb_emit_byte (mb, 3);
1317 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1318 mono_mb_emit_byte (mb, CEE_BR_S);
1319 mono_mb_emit_byte (mb, 1);
1320 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1321 mono_mb_emit_byte (mb, CEE_STIND_I1);
1323 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1324 mono_mb_emit_ldloc (mb, 1);
1325 mono_mb_emit_ldloc (mb, 0);
1326 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1327 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1328 mono_mb_emit_byte (mb, 3);
1329 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1330 mono_mb_emit_byte (mb, CEE_BR_S);
1331 mono_mb_emit_byte (mb, 1);
1332 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1333 mono_mb_emit_byte (mb, CEE_STIND_I1);
1335 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1336 MonoClass *eklass = NULL;
1339 if (type->type == MONO_TYPE_SZARRAY) {
1340 eklass = type->data.klass;
1342 g_assert_not_reached ();
1345 esize = mono_class_native_size (eklass, NULL);
1347 /* create a new array */
1348 mono_mb_emit_ldloc (mb, 1);
1349 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1350 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1351 mono_mb_emit_byte (mb, CEE_STIND_REF);
1353 if (eklass->blittable) {
1354 /* copy the elements */
1355 mono_mb_emit_ldloc (mb, 1);
1356 mono_mb_emit_byte (mb, CEE_LDIND_I);
1357 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1358 mono_mb_emit_byte (mb, CEE_ADD);
1359 mono_mb_emit_ldloc (mb, 0);
1360 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1361 mono_mb_emit_byte (mb, CEE_PREFIX1);
1362 mono_mb_emit_byte (mb, CEE_CPBLK);
1365 int array_var, src_var, dst_var, index_var;
1366 guint32 label2, label3;
1368 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1369 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1370 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1375 mono_mb_emit_stloc (mb, array_var);
1377 /* save the old src pointer */
1378 mono_mb_emit_ldloc (mb, 0);
1379 mono_mb_emit_stloc (mb, src_var);
1380 /* save the old dst pointer */
1381 mono_mb_emit_ldloc (mb, 1);
1382 mono_mb_emit_stloc (mb, dst_var);
1384 /* Emit marshalling loop */
1385 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1386 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1387 mono_mb_emit_stloc (mb, index_var);
1390 label2 = mono_mb_get_label (mb);
1391 mono_mb_emit_ldloc (mb, index_var);
1392 mono_mb_emit_ldloc (mb, array_var);
1393 mono_mb_emit_byte (mb, CEE_LDLEN);
1394 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1396 /* src is already set */
1399 mono_mb_emit_ldloc (mb, array_var);
1400 mono_mb_emit_ldloc (mb, index_var);
1401 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1402 mono_mb_emit_stloc (mb, 1);
1404 /* Do the conversion */
1405 emit_struct_conv (mb, eklass, TRUE);
1408 mono_mb_emit_add_to_local (mb, index_var, 1);
1410 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1412 mono_mb_patch_branch (mb, label3);
1414 /* restore the old src pointer */
1415 mono_mb_emit_ldloc (mb, src_var);
1416 mono_mb_emit_stloc (mb, 0);
1417 /* restore the old dst pointer */
1418 mono_mb_emit_ldloc (mb, dst_var);
1419 mono_mb_emit_stloc (mb, 1);
1423 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1424 MonoClass *eclass = mono_defaults.char_class;
1426 /* create a new array */
1427 mono_mb_emit_ldloc (mb, 1);
1428 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1429 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1430 mono_mb_emit_byte (mb, CEE_STIND_REF);
1432 mono_mb_emit_ldloc (mb, 1);
1433 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1434 mono_mb_emit_ldloc (mb, 0);
1435 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1436 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1439 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1440 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1441 mono_mb_emit_ldloc (mb, 1);
1442 mono_mb_emit_ldloc (mb, 0);
1443 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1444 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1446 mono_mb_emit_ldloc (mb, 1);
1447 mono_mb_emit_ldloc (mb, 0);
1448 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1450 mono_mb_emit_byte (mb, CEE_STIND_REF);
1452 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1453 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1454 mono_mb_emit_ldloc (mb, 1);
1455 mono_mb_emit_ldloc (mb, 0);
1456 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1457 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1459 mono_mb_emit_ldloc (mb, 1);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1463 mono_mb_emit_byte (mb, CEE_STIND_REF);
1465 case MONO_MARSHAL_CONV_STR_LPTSTR:
1466 mono_mb_emit_ldloc (mb, 1);
1467 mono_mb_emit_ldloc (mb, 0);
1468 mono_mb_emit_byte (mb, CEE_LDIND_I);
1470 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1472 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1474 mono_mb_emit_byte (mb, CEE_STIND_REF);
1476 case MONO_MARSHAL_CONV_STR_LPSTR:
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_ldloc (mb, 0);
1479 mono_mb_emit_byte (mb, CEE_LDIND_I);
1480 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1483 case MONO_MARSHAL_CONV_STR_LPWSTR:
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_byte (mb, CEE_LDIND_I);
1487 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1488 mono_mb_emit_byte (mb, CEE_STIND_REF);
1490 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1491 MonoClass *klass = mono_class_from_mono_type (type);
1492 int src_var, dst_var;
1494 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1495 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1497 /* *dst = new object */
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1500 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1501 mono_mb_emit_byte (mb, CEE_STIND_REF);
1503 /* save the old src pointer */
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_stloc (mb, src_var);
1506 /* save the old dst pointer */
1507 mono_mb_emit_ldloc (mb, 1);
1508 mono_mb_emit_stloc (mb, dst_var);
1510 /* dst = pointer to newly created object data */
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_byte (mb, CEE_LDIND_I);
1513 mono_mb_emit_icon (mb, sizeof (MonoObject));
1514 mono_mb_emit_byte (mb, CEE_ADD);
1515 mono_mb_emit_stloc (mb, 1);
1517 emit_struct_conv (mb, klass, TRUE);
1519 /* restore the old src pointer */
1520 mono_mb_emit_ldloc (mb, src_var);
1521 mono_mb_emit_stloc (mb, 0);
1522 /* restore the old dst pointer */
1523 mono_mb_emit_ldloc (mb, dst_var);
1524 mono_mb_emit_stloc (mb, 1);
1527 case MONO_MARSHAL_CONV_DEL_FTN: {
1528 MonoClass *klass = mono_class_from_mono_type (type);
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1532 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_I);
1535 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1536 mono_mb_emit_byte (mb, CEE_STIND_REF);
1539 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1540 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1544 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1545 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1546 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1547 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1549 #endif /* DISABLE_COM */
1551 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1553 * Passing SafeHandles as ref does not allow the unmanaged code
1554 * to change the SafeHandle value. If the value is changed,
1555 * we should issue a diagnostic exception (NotSupportedException)
1556 * that informs the user that changes to handles in unmanaged code
1559 * Since we currently have no access to the original
1560 * SafeHandle that was used during the marshalling,
1561 * for now we just ignore this, and ignore/discard any
1562 * changes that might have happened to the handle.
1567 case MONO_MARSHAL_CONV_HANDLEREF: {
1569 * Passing HandleRefs in a struct that is ref()ed does not
1570 * copy the values back to the HandleRef
1575 case MONO_MARSHAL_CONV_STR_BSTR:
1576 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1577 case MONO_MARSHAL_CONV_STR_TBSTR:
1578 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1580 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1582 mono_mb_emit_exception_marshal_directive (mb, msg);
1589 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1592 if (!ind_store_type)
1593 ind_store_type = &dummy;
1594 *ind_store_type = CEE_STIND_I;
1596 case MONO_MARSHAL_CONV_STR_LPWSTR:
1597 return mono_marshal_string_to_utf16;
1598 case MONO_MARSHAL_CONV_LPWSTR_STR:
1599 *ind_store_type = CEE_STIND_REF;
1600 return ves_icall_mono_string_from_utf16;
1601 case MONO_MARSHAL_CONV_LPTSTR_STR:
1602 *ind_store_type = CEE_STIND_REF;
1603 return mono_string_new_wrapper;
1604 case MONO_MARSHAL_CONV_LPSTR_STR:
1605 *ind_store_type = CEE_STIND_REF;
1606 return mono_string_new_wrapper;
1607 case MONO_MARSHAL_CONV_STR_LPTSTR:
1609 return mono_marshal_string_to_utf16;
1611 return mono_string_to_lpstr;
1613 case MONO_MARSHAL_CONV_STR_LPSTR:
1614 return mono_string_to_lpstr;
1615 case MONO_MARSHAL_CONV_STR_BSTR:
1616 return mono_string_to_bstr;
1617 case MONO_MARSHAL_CONV_BSTR_STR:
1618 *ind_store_type = CEE_STIND_REF;
1619 return mono_string_from_bstr_icall;
1620 case MONO_MARSHAL_CONV_STR_TBSTR:
1621 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1622 return mono_string_to_ansibstr;
1623 case MONO_MARSHAL_CONV_SB_LPSTR:
1624 return mono_string_builder_to_utf8;
1625 case MONO_MARSHAL_CONV_SB_LPTSTR:
1627 return mono_string_builder_to_utf16;
1629 return mono_string_builder_to_utf8;
1631 case MONO_MARSHAL_CONV_SB_LPWSTR:
1632 return mono_string_builder_to_utf16;
1633 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1634 return mono_array_to_savearray;
1635 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1636 return mono_array_to_lparray;
1637 case MONO_MARSHAL_FREE_LPARRAY:
1638 return mono_free_lparray;
1639 case MONO_MARSHAL_CONV_DEL_FTN:
1640 return mono_delegate_to_ftnptr;
1641 case MONO_MARSHAL_CONV_FTN_DEL:
1642 *ind_store_type = CEE_STIND_REF;
1643 return mono_ftnptr_to_delegate;
1644 case MONO_MARSHAL_CONV_LPSTR_SB:
1645 *ind_store_type = CEE_STIND_REF;
1646 return mono_string_utf8_to_builder;
1647 case MONO_MARSHAL_CONV_LPTSTR_SB:
1648 *ind_store_type = CEE_STIND_REF;
1650 return mono_string_utf16_to_builder;
1652 return mono_string_utf8_to_builder;
1654 case MONO_MARSHAL_CONV_LPWSTR_SB:
1655 *ind_store_type = CEE_STIND_REF;
1656 return mono_string_utf16_to_builder;
1657 case MONO_MARSHAL_FREE_ARRAY:
1658 return mono_marshal_free_array;
1659 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1660 return mono_string_to_byvalstr;
1661 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1662 return mono_string_to_byvalwstr;
1664 g_assert_not_reached ();
1671 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1677 case MONO_MARSHAL_CONV_BOOL_I4:
1678 mono_mb_emit_ldloc (mb, 1);
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1681 mono_mb_emit_byte (mb, CEE_STIND_I4);
1683 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1684 mono_mb_emit_ldloc (mb, 1);
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1687 mono_mb_emit_byte (mb, CEE_NEG);
1688 mono_mb_emit_byte (mb, CEE_STIND_I2);
1690 case MONO_MARSHAL_CONV_STR_LPWSTR:
1691 case MONO_MARSHAL_CONV_STR_LPSTR:
1692 case MONO_MARSHAL_CONV_STR_LPTSTR:
1693 case MONO_MARSHAL_CONV_STR_BSTR:
1694 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1695 case MONO_MARSHAL_CONV_STR_TBSTR: {
1698 /* free space if free == true */
1699 mono_mb_emit_ldloc (mb, 2);
1700 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1701 mono_mb_emit_ldloc (mb, 1);
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_icall (mb, g_free);
1704 mono_mb_patch_short_branch (mb, pos);
1706 mono_mb_emit_ldloc (mb, 1);
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1709 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1710 mono_mb_emit_byte (mb, stind_op);
1713 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1714 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1715 case MONO_MARSHAL_CONV_DEL_FTN:
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_ldloc (mb, 0);
1718 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1719 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1720 mono_mb_emit_byte (mb, stind_op);
1722 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1723 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1726 mono_mb_emit_ldloc (mb, 1); /* dst */
1727 mono_mb_emit_ldloc (mb, 0);
1728 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1729 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1730 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1733 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1734 MonoClass *eklass = NULL;
1737 if (type->type == MONO_TYPE_SZARRAY) {
1738 eklass = type->data.klass;
1740 g_assert_not_reached ();
1743 if (eklass->valuetype)
1744 esize = mono_class_native_size (eklass, NULL);
1746 esize = sizeof (gpointer);
1748 mono_mb_emit_ldloc (mb, 0);
1749 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1750 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1752 if (eklass->blittable) {
1753 mono_mb_emit_ldloc (mb, 1);
1754 mono_mb_emit_ldloc (mb, 0);
1755 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1756 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1757 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1758 mono_mb_emit_byte (mb, CEE_PREFIX1);
1759 mono_mb_emit_byte (mb, CEE_CPBLK);
1761 int array_var, src_var, dst_var, index_var;
1762 guint32 label2, label3;
1764 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1765 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1766 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1769 mono_mb_emit_ldloc (mb, 0);
1770 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1771 mono_mb_emit_stloc (mb, array_var);
1773 /* save the old src pointer */
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_stloc (mb, src_var);
1776 /* save the old dst pointer */
1777 mono_mb_emit_ldloc (mb, 1);
1778 mono_mb_emit_stloc (mb, dst_var);
1780 /* Emit marshalling loop */
1781 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1782 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1783 mono_mb_emit_stloc (mb, index_var);
1786 label2 = mono_mb_get_label (mb);
1787 mono_mb_emit_ldloc (mb, index_var);
1788 mono_mb_emit_ldloc (mb, array_var);
1789 mono_mb_emit_byte (mb, CEE_LDLEN);
1790 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1793 mono_mb_emit_ldloc (mb, array_var);
1794 mono_mb_emit_ldloc (mb, index_var);
1795 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1796 mono_mb_emit_stloc (mb, 0);
1798 /* dst is already set */
1800 /* Do the conversion */
1801 emit_struct_conv (mb, eklass, FALSE);
1804 mono_mb_emit_add_to_local (mb, index_var, 1);
1806 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1808 mono_mb_patch_branch (mb, label3);
1810 /* restore the old src pointer */
1811 mono_mb_emit_ldloc (mb, src_var);
1812 mono_mb_emit_stloc (mb, 0);
1813 /* restore the old dst pointer */
1814 mono_mb_emit_ldloc (mb, dst_var);
1815 mono_mb_emit_stloc (mb, 1);
1818 mono_mb_patch_branch (mb, pos);
1821 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1822 mono_mb_emit_ldloc (mb, 0);
1823 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1824 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1826 mono_mb_emit_ldloc (mb, 1);
1827 mono_mb_emit_ldloc (mb, 0);
1828 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1829 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1830 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1831 mono_mb_patch_short_branch (mb, pos);
1834 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1835 int src_var, dst_var;
1837 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1838 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1840 mono_mb_emit_ldloc (mb, 0);
1841 mono_mb_emit_byte (mb, CEE_LDIND_I);
1842 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1844 /* save the old src pointer */
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_stloc (mb, src_var);
1847 /* save the old dst pointer */
1848 mono_mb_emit_ldloc (mb, 1);
1849 mono_mb_emit_stloc (mb, dst_var);
1851 /* src = pointer to object data */
1852 mono_mb_emit_ldloc (mb, 0);
1853 mono_mb_emit_byte (mb, CEE_LDIND_I);
1854 mono_mb_emit_icon (mb, sizeof (MonoObject));
1855 mono_mb_emit_byte (mb, CEE_ADD);
1856 mono_mb_emit_stloc (mb, 0);
1858 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1860 /* restore the old src pointer */
1861 mono_mb_emit_ldloc (mb, src_var);
1862 mono_mb_emit_stloc (mb, 0);
1863 /* restore the old dst pointer */
1864 mono_mb_emit_ldloc (mb, dst_var);
1865 mono_mb_emit_stloc (mb, 1);
1867 mono_mb_patch_branch (mb, pos);
1872 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1873 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1874 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1875 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1877 #endif /* DISABLE_COM */
1879 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1882 mono_mb_emit_ldloc (mb, 0);
1883 mono_mb_emit_byte (mb, CEE_LDIND_I);
1884 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1885 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1886 mono_mb_patch_branch (mb, pos);
1888 /* Pull the handle field from SafeHandle */
1889 mono_mb_emit_ldloc (mb, 1);
1890 mono_mb_emit_ldloc (mb, 0);
1891 mono_mb_emit_byte (mb, CEE_LDIND_I);
1892 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1893 mono_mb_emit_byte (mb, CEE_LDIND_I);
1894 mono_mb_emit_byte (mb, CEE_STIND_I);
1898 case MONO_MARSHAL_CONV_HANDLEREF: {
1899 mono_mb_emit_ldloc (mb, 1);
1900 mono_mb_emit_ldloc (mb, 0);
1901 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1902 mono_mb_emit_byte (mb, CEE_ADD);
1903 mono_mb_emit_byte (mb, CEE_LDIND_I);
1904 mono_mb_emit_byte (mb, CEE_STIND_I);
1909 g_error ("marshalling conversion %d not implemented", conv);
1915 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1916 MonoMarshalNative string_encoding)
1918 MonoMarshalType *info;
1922 emit_struct_conv(mb, klass->parent, to_object);
1924 info = mono_marshal_load_type_info (klass);
1926 if (info->native_size == 0)
1929 if (klass->blittable) {
1930 int msize = mono_class_value_size (klass, NULL);
1931 g_assert (msize == info->native_size);
1932 mono_mb_emit_ldloc (mb, 1);
1933 mono_mb_emit_ldloc (mb, 0);
1934 mono_mb_emit_icon (mb, msize);
1935 mono_mb_emit_byte (mb, CEE_PREFIX1);
1936 mono_mb_emit_byte (mb, CEE_CPBLK);
1938 mono_mb_emit_add_to_local (mb, 0, msize);
1939 mono_mb_emit_add_to_local (mb, 1, msize);
1943 if (klass != mono_class_try_get_safehandle_class ()) {
1944 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1945 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1946 mono_type_full_name (&klass->byval_arg));
1947 mono_mb_emit_exception_marshal_directive (mb, msg);
1952 for (i = 0; i < info->num_fields; i++) {
1953 MonoMarshalNative ntype;
1954 MonoMarshalConv conv;
1955 MonoType *ftype = info->fields [i].field->type;
1958 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1960 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1963 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1966 msize = klass->instance_size - info->fields [i].field->offset;
1967 usize = info->native_size - info->fields [i].offset;
1969 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1970 usize = info->fields [i + 1].offset - info->fields [i].offset;
1973 if (klass != mono_class_try_get_safehandle_class ()){
1975 * FIXME: Should really check for usize==0 and msize>0, but we apply
1976 * the layout to the managed structure as well.
1979 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1980 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1981 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1982 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1983 "reference field at the same offset as another field.",
1984 mono_type_full_name (&klass->byval_arg));
1989 case MONO_MARSHAL_CONV_NONE: {
1992 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1993 g_assert (!ftype->byref);
1994 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1995 mono_mb_emit_ldloc (mb, 1);
1996 mono_mb_emit_ldloc (mb, 0);
1997 mono_mb_emit_byte (mb, CEE_LDIND_I);
1998 mono_mb_emit_byte (mb, CEE_STIND_I);
2009 case MONO_TYPE_BOOLEAN:
2012 case MONO_TYPE_CHAR:
2018 mono_mb_emit_ldloc (mb, 1);
2019 mono_mb_emit_ldloc (mb, 0);
2020 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2022 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2023 mono_mb_emit_byte (mb, CEE_STIND_I2);
2025 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2026 mono_mb_emit_byte (mb, CEE_STIND_I1);
2029 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2030 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2033 case MONO_TYPE_VALUETYPE: {
2034 int src_var, dst_var;
2036 if (ftype->data.klass->enumtype) {
2037 ftype = mono_class_enum_basetype (ftype->data.klass);
2041 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2042 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2044 /* save the old src pointer */
2045 mono_mb_emit_ldloc (mb, 0);
2046 mono_mb_emit_stloc (mb, src_var);
2047 /* save the old dst pointer */
2048 mono_mb_emit_ldloc (mb, 1);
2049 mono_mb_emit_stloc (mb, dst_var);
2051 emit_struct_conv (mb, ftype->data.klass, to_object);
2053 /* restore the old src pointer */
2054 mono_mb_emit_ldloc (mb, src_var);
2055 mono_mb_emit_stloc (mb, 0);
2056 /* restore the old dst pointer */
2057 mono_mb_emit_ldloc (mb, dst_var);
2058 mono_mb_emit_stloc (mb, 1);
2061 case MONO_TYPE_OBJECT: {
2064 static MonoMethod *variant_clear = NULL;
2065 static MonoMethod *get_object_for_native_variant = NULL;
2068 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2069 if (!get_object_for_native_variant)
2070 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2071 mono_mb_emit_ldloc (mb, 1);
2072 mono_mb_emit_ldloc (mb, 0);
2073 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2074 mono_mb_emit_byte (mb, CEE_STIND_REF);
2076 mono_mb_emit_ldloc (mb, 0);
2077 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2080 static MonoMethod *get_native_variant_for_object = NULL;
2082 if (!get_native_variant_for_object)
2083 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2085 mono_mb_emit_ldloc (mb, 0);
2086 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2087 mono_mb_emit_ldloc (mb, 1);
2088 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2091 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2092 mono_mb_emit_exception_marshal_directive (mb, msg);
2098 g_warning ("marshaling type %02x not implemented", ftype->type);
2099 g_assert_not_reached ();
2104 int src_var, dst_var;
2106 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2107 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2109 /* save the old src pointer */
2110 mono_mb_emit_ldloc (mb, 0);
2111 mono_mb_emit_stloc (mb, src_var);
2112 /* save the old dst pointer */
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_stloc (mb, dst_var);
2117 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2119 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2121 /* restore the old src pointer */
2122 mono_mb_emit_ldloc (mb, src_var);
2123 mono_mb_emit_stloc (mb, 0);
2124 /* restore the old dst pointer */
2125 mono_mb_emit_ldloc (mb, dst_var);
2126 mono_mb_emit_stloc (mb, 1);
2131 mono_mb_emit_add_to_local (mb, 0, usize);
2132 mono_mb_emit_add_to_local (mb, 1, msize);
2134 mono_mb_emit_add_to_local (mb, 0, msize);
2135 mono_mb_emit_add_to_local (mb, 1, usize);
2141 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2143 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2147 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2149 /* Call DestroyStructure */
2150 /* FIXME: Only do this if needed */
2151 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2152 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2153 mono_mb_emit_ldloc (mb, struct_var);
2154 mono_mb_emit_icall (mb, mono_struct_delete_old);
2158 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2160 int pos_noabort, pos_noex;
2162 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2163 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2164 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2165 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2168 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2170 mono_mb_emit_icall (mb, checkpoint_func);
2171 /* Throw the exception returned by the checkpoint function, if any */
2172 mono_mb_emit_byte (mb, CEE_DUP);
2173 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2174 mono_mb_emit_byte (mb, CEE_THROW);
2175 mono_mb_patch_branch (mb, pos_noex);
2176 mono_mb_emit_byte (mb, CEE_POP);
2178 mono_mb_patch_branch (mb, pos_noabort);
2182 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2184 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2187 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2191 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2193 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2197 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2199 emit_thread_interrupt_checkpoint (mb);
2203 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2205 emit_thread_force_interrupt_checkpoint (mb);
2208 #endif /* DISABLE_JIT */
2210 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2211 static MonoAsyncResult *
2212 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2215 MonoMulticastDelegate *mcast_delegate;
2219 g_assert (delegate);
2220 mcast_delegate = (MonoMulticastDelegate *) delegate;
2221 if (mcast_delegate->delegates != NULL) {
2222 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2226 #ifndef DISABLE_REMOTING
2227 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2228 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2229 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2230 /* If the target is a proxy, make a direct call. Is proxy's work
2231 // to make the call asynchronous.
2233 MonoMethodMessage *msg;
2234 MonoDelegate *async_callback;
2236 MonoAsyncResult *ares;
2238 MonoArray *out_args;
2239 method = delegate->method;
2241 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2242 if (mono_error_set_pending_exception (&error))
2244 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2245 if (mono_error_set_pending_exception (&error))
2247 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2248 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2249 MONO_OBJECT_SETREF (msg, async_result, ares);
2250 msg->call_type = CallType_BeginInvoke;
2253 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2254 if (!mono_error_ok (&error)) {
2255 mono_error_set_pending_exception (&error);
2259 mono_set_pending_exception ((MonoException *) exc);
2265 klass = delegate->object.vtable->klass;
2267 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2269 method = mono_get_delegate_invoke (klass);
2272 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2273 mono_error_set_pending_exception (&error);
2280 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2282 int i, params_var, tmp_var;
2284 /* allocate local (pointer) *params[] */
2285 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2286 /* allocate local (pointer) tmp */
2287 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2289 /* alloate space on stack to store an array of pointers to the arguments */
2290 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2291 mono_mb_emit_byte (mb, CEE_PREFIX1);
2292 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2293 mono_mb_emit_stloc (mb, params_var);
2296 mono_mb_emit_ldloc (mb, params_var);
2297 mono_mb_emit_stloc (mb, tmp_var);
2299 if (save_this && sig->hasthis) {
2300 mono_mb_emit_ldloc (mb, tmp_var);
2301 mono_mb_emit_ldarg_addr (mb, 0);
2302 mono_mb_emit_byte (mb, CEE_STIND_I);
2303 /* tmp = tmp + sizeof (gpointer) */
2304 if (sig->param_count)
2305 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2309 for (i = 0; i < sig->param_count; i++) {
2310 mono_mb_emit_ldloc (mb, tmp_var);
2311 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2312 mono_mb_emit_byte (mb, CEE_STIND_I);
2313 /* tmp = tmp + sizeof (gpointer) */
2314 if (i < (sig->param_count - 1))
2315 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2321 #endif /* DISABLE_JIT */
2324 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2328 GString *res = g_string_new ("");
2331 g_string_append (res, prefix);
2332 g_string_append_c (res, '_');
2335 mono_type_get_desc (res, sig->ret, FALSE);
2338 g_string_append (res, "__this__");
2340 for (i = 0; i < sig->param_count; ++i) {
2341 g_string_append_c (res, '_');
2342 mono_type_get_desc (res, sig->params [i], FALSE);
2345 g_string_free (res, FALSE);
2350 * mono_marshal_get_string_encoding:
2352 * Return the string encoding which should be used for a given parameter.
2354 static MonoMarshalNative
2355 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2357 /* First try the parameter marshal info */
2359 if (spec->native == MONO_NATIVE_LPARRAY) {
2360 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2361 return spec->data.array_data.elem_type;
2364 return spec->native;
2368 return MONO_NATIVE_LPSTR;
2370 /* Then try the method level marshal info */
2371 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2372 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2373 return MONO_NATIVE_LPSTR;
2374 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2375 return MONO_NATIVE_LPWSTR;
2376 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2378 return MONO_NATIVE_LPWSTR;
2380 return MONO_NATIVE_LPSTR;
2383 return MONO_NATIVE_LPSTR;
2387 static MonoMarshalConv
2388 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2390 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2393 case MONO_NATIVE_LPWSTR:
2394 return MONO_MARSHAL_CONV_STR_LPWSTR;
2395 case MONO_NATIVE_LPSTR:
2396 case MONO_NATIVE_VBBYREFSTR:
2397 return MONO_MARSHAL_CONV_STR_LPSTR;
2398 case MONO_NATIVE_LPTSTR:
2399 return MONO_MARSHAL_CONV_STR_LPTSTR;
2400 case MONO_NATIVE_BSTR:
2401 return MONO_MARSHAL_CONV_STR_BSTR;
2403 return MONO_MARSHAL_CONV_INVALID;
2407 static MonoMarshalConv
2408 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2410 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2413 case MONO_NATIVE_LPWSTR:
2414 return MONO_MARSHAL_CONV_SB_LPWSTR;
2416 case MONO_NATIVE_LPSTR:
2417 return MONO_MARSHAL_CONV_SB_LPSTR;
2419 case MONO_NATIVE_LPTSTR:
2420 return MONO_MARSHAL_CONV_SB_LPTSTR;
2423 return MONO_MARSHAL_CONV_INVALID;
2427 static MonoMarshalConv
2428 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2430 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2435 case MONO_NATIVE_LPWSTR:
2437 return MONO_MARSHAL_CONV_LPWSTR_STR;
2438 case MONO_NATIVE_LPSTR:
2439 case MONO_NATIVE_VBBYREFSTR:
2440 return MONO_MARSHAL_CONV_LPSTR_STR;
2441 case MONO_NATIVE_LPTSTR:
2442 return MONO_MARSHAL_CONV_LPTSTR_STR;
2443 case MONO_NATIVE_BSTR:
2444 return MONO_MARSHAL_CONV_BSTR_STR;
2446 return MONO_MARSHAL_CONV_INVALID;
2450 static MonoMarshalConv
2451 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2453 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2458 case MONO_NATIVE_LPWSTR:
2460 * mono_string_builder_to_utf16 does not allocate a
2461 * new buffer, so no need to free it.
2464 return MONO_MARSHAL_CONV_LPWSTR_SB;
2465 case MONO_NATIVE_LPSTR:
2466 return MONO_MARSHAL_CONV_LPSTR_SB;
2468 case MONO_NATIVE_LPTSTR:
2469 return MONO_MARSHAL_CONV_LPTSTR_SB;
2472 return MONO_MARSHAL_CONV_INVALID;
2477 * Return whenever a field of a native structure or an array member needs to
2481 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2483 MonoMarshalNative encoding;
2486 case MONO_TYPE_VALUETYPE:
2487 /* FIXME: Optimize this */
2489 case MONO_TYPE_OBJECT:
2490 case MONO_TYPE_CLASS:
2491 if (t->data.klass == mono_defaults.stringbuilder_class) {
2493 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2497 case MONO_TYPE_STRING:
2498 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2499 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2506 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2509 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2512 mono_marshal_lock ();
2515 g_hash_table_new (hash_func, equal_func);
2516 mono_memory_barrier ();
2519 mono_marshal_unlock ();
2525 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2527 return get_cache (var, hash_func, equal_func);
2531 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2535 mono_marshal_lock ();
2536 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2537 mono_marshal_unlock ();
2544 * Create a MonoMethod from MB, set INFO as wrapper info.
2547 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2548 int max_stack, WrapperInfo *info)
2552 res = mono_mb_create_method (mb, sig, max_stack);
2554 mono_marshal_set_wrapper_info (res, info);
2558 /* Create the method from the builder and place it in the cache */
2560 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2561 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2562 int max_stack, WrapperInfo *info, gboolean *out_found)
2569 mono_marshal_lock ();
2570 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2571 mono_marshal_unlock ();
2574 newm = mono_mb_create_method (mb, sig, max_stack);
2575 mono_marshal_lock ();
2576 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2579 g_hash_table_insert (cache, key, res);
2580 mono_marshal_set_wrapper_info (res, info);
2581 mono_marshal_unlock ();
2585 mono_marshal_unlock ();
2586 mono_free_method (newm);
2594 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2595 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2598 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2602 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2605 int wrapper_type = wrapper->wrapper_type;
2608 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2611 info = mono_marshal_get_wrapper_info (wrapper);
2613 switch (wrapper_type) {
2614 case MONO_WRAPPER_REMOTING_INVOKE:
2615 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2616 case MONO_WRAPPER_XDOMAIN_INVOKE:
2617 m = info->d.remoting.method;
2618 if (wrapper->is_inflated) {
2622 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2623 * contains an uninflated method.
2625 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2626 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2630 case MONO_WRAPPER_SYNCHRONIZED:
2631 m = info->d.synchronized.method;
2632 if (wrapper->is_inflated) {
2635 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2636 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2640 case MONO_WRAPPER_UNBOX:
2641 return info->d.unbox.method;
2642 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2643 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2644 return info->d.managed_to_native.method;
2647 case MONO_WRAPPER_RUNTIME_INVOKE:
2648 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2649 return info->d.runtime_invoke.method;
2658 * mono_marshal_get_wrapper_info:
2660 * Retrieve the WrapperInfo structure associated with WRAPPER.
2663 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2665 g_assert (wrapper->wrapper_type);
2667 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2671 * mono_marshal_set_wrapper_info:
2673 * Set the WrapperInfo structure associated with the wrapper
2674 * method METHOD to INFO.
2677 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2681 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2684 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2689 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2693 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2694 info->subtype = subtype;
2699 * get_wrapper_target_class:
2701 * Return the class where a wrapper method should be placed.
2704 get_wrapper_target_class (MonoImage *image)
2711 * - can't put all wrappers into an mscorlib class, because they reference
2712 * metadata (signature) so they should be put into the same image as the
2713 * method they wrap, so they are unloaded together.
2714 * - putting them into a class with a type initalizer could cause the
2715 * initializer to be executed which can be a problem if the wrappers are
2717 * - putting them into an inflated class can cause problems if the the
2718 * class is deleted because it references an image which is unloaded.
2719 * To avoid these problems, we put the wrappers into the <Module> class of
2722 if (image_is_dynamic (image)) {
2723 klass = ((MonoDynamicImage*)image)->wrappers_type;
2725 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2726 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2734 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2735 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2739 * check_generic_wrapper_cache:
2741 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2742 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2743 * generic method definition.
2746 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2749 MonoMethod *inst, *def;
2750 MonoGenericContext *ctx;
2752 g_assert (orig_method->is_inflated);
2753 ctx = mono_method_get_context (orig_method);
2756 * Look for the instance
2758 res = mono_marshal_find_in_cache (cache, key);
2763 * Look for the definition
2765 def = mono_marshal_find_in_cache (cache, def_key);
2768 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2769 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2771 mono_memory_barrier ();
2772 mono_marshal_lock ();
2773 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2775 g_hash_table_insert (cache, key, inst);
2778 mono_marshal_unlock ();
2785 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2788 MonoMethod *inst, *res;
2791 * We use the same cache for the generic definition and the instances.
2793 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2794 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2795 mono_memory_barrier ();
2796 mono_marshal_lock ();
2797 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2799 g_hash_table_insert (cache, key, inst);
2802 mono_marshal_unlock ();
2807 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2811 MonoMethod *inst, *def;
2814 * Look for the instance
2816 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2821 * Look for the definition
2823 def = mono_marshal_find_in_cache (cache, def_method->klass);
2825 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2826 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2829 mono_memory_barrier ();
2830 mono_marshal_lock ();
2831 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2833 g_hash_table_insert (cache, orig_method->klass, inst);
2836 mono_marshal_unlock ();
2843 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2846 MonoMethod *inst, *res;
2849 * We use the same cache for the generic definition and the instances.
2851 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2852 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2854 mono_memory_barrier ();
2855 mono_marshal_lock ();
2856 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2858 g_hash_table_insert (cache, orig_method->klass, inst);
2861 mono_marshal_unlock ();
2866 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2868 MonoMethodSignature *sig;
2869 MonoMethodBuilder *mb;
2874 MonoGenericContext *ctx = NULL;
2875 MonoMethod *orig_method = NULL;
2877 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2878 !strcmp (method->name, "BeginInvoke"));
2881 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2883 if (method->is_inflated) {
2884 orig_method = method;
2885 ctx = &((MonoMethodInflated*)method)->context;
2886 method = ((MonoMethodInflated*)method)->declaring;
2889 sig = mono_signature_no_pinvoke (method);
2895 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2896 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2900 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2901 (GHashFunc)mono_signature_hash,
2902 (GCompareFunc)mono_metadata_signature_equal);
2903 if ((res = mono_marshal_find_in_cache (cache, sig)))
2907 g_assert (sig->hasthis);
2909 name = mono_signature_to_name (sig, "begin_invoke");
2911 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2913 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2917 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2919 mono_mb_emit_ldarg (mb, 0);
2920 mono_mb_emit_ldloc (mb, params_var);
2921 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2922 mono_mb_emit_byte (mb, CEE_RET);
2927 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2928 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2930 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2937 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2939 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2942 MonoDomain *domain = mono_domain_get ();
2943 MonoAsyncResult *ares;
2944 MonoMethod *method = NULL;
2945 MonoMethodSignature *sig;
2946 MonoMethodMessage *msg;
2947 MonoObject *res, *exc;
2948 MonoArray *out_args;
2951 g_assert (delegate);
2953 if (!delegate->method_info) {
2954 g_assert (delegate->method);
2955 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2956 if (!mono_error_ok (&error)) {
2957 mono_error_set_pending_exception (&error);
2960 MONO_OBJECT_SETREF (delegate, method_info, rm);
2963 if (!delegate->method_info || !delegate->method_info->method)
2964 g_assert_not_reached ();
2966 klass = delegate->object.vtable->klass;
2968 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2969 g_assert (method != NULL);
2971 sig = mono_signature_no_pinvoke (method);
2973 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2974 if (mono_error_set_pending_exception (&error))
2977 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2979 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2983 if (ares->async_delegate != (MonoObject*)delegate) {
2984 mono_set_pending_exception (mono_get_exception_invalid_operation (
2985 "The IAsyncResult object provided does not match this delegate."));
2989 #ifndef DISABLE_REMOTING
2990 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2991 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2992 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2993 if (!mono_error_ok (&error)) {
2994 mono_error_set_pending_exception (&error);
2997 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
2998 if (mono_error_set_pending_exception (&error))
3000 msg->call_type = CallType_EndInvoke;
3001 MONO_OBJECT_SETREF (msg, async_result, ares);
3002 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3003 if (!mono_error_ok (&error)) {
3004 mono_error_set_pending_exception (&error);
3010 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
3014 if (((MonoException*)exc)->stack_trace) {
3015 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3017 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3019 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3022 mono_set_pending_exception ((MonoException*)exc);
3025 mono_method_return_message_restore (method, params, out_args, &error);
3026 mono_error_set_pending_exception (&error);
3033 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3035 MonoType *t = mono_type_get_underlying_type (return_type);
3037 if (return_type->byref)
3038 return_type = &mono_defaults.int_class->byval_arg;
3041 case MONO_TYPE_VOID:
3042 g_assert_not_reached ();
3045 case MONO_TYPE_STRING:
3046 case MONO_TYPE_CLASS:
3047 case MONO_TYPE_OBJECT:
3048 case MONO_TYPE_ARRAY:
3049 case MONO_TYPE_SZARRAY:
3053 case MONO_TYPE_BOOLEAN:
3056 case MONO_TYPE_CHAR:
3066 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3067 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3069 case MONO_TYPE_GENERICINST:
3070 if (!mono_type_generic_inst_is_valuetype (t))
3073 case MONO_TYPE_VALUETYPE: {
3074 MonoClass *klass = mono_class_from_mono_type (return_type);
3075 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3076 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3080 case MONO_TYPE_MVAR: {
3081 MonoClass *klass = mono_class_from_mono_type (return_type);
3082 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3086 g_warning ("type 0x%x not handled", return_type->type);
3087 g_assert_not_reached ();
3090 mono_mb_emit_byte (mb, CEE_RET);
3093 #endif /* DISABLE_JIT */
3096 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3098 MonoMethodSignature *sig;
3099 MonoMethodBuilder *mb;
3104 MonoGenericContext *ctx = NULL;
3105 MonoMethod *orig_method = NULL;
3107 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3108 !strcmp (method->name, "EndInvoke"));
3111 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3113 if (method->is_inflated) {
3114 orig_method = method;
3115 ctx = &((MonoMethodInflated*)method)->context;
3116 method = ((MonoMethodInflated*)method)->declaring;
3119 sig = mono_signature_no_pinvoke (method);
3125 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3126 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3130 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3131 (GHashFunc)mono_signature_hash,
3132 (GCompareFunc)mono_metadata_signature_equal);
3133 if ((res = mono_marshal_find_in_cache (cache, sig)))
3137 g_assert (sig->hasthis);
3139 name = mono_signature_to_name (sig, "end_invoke");
3141 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3143 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3147 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3149 mono_mb_emit_ldarg (mb, 0);
3150 mono_mb_emit_ldloc (mb, params_var);
3151 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3153 if (sig->ret->type == MONO_TYPE_VOID) {
3154 mono_mb_emit_byte (mb, CEE_POP);
3155 mono_mb_emit_byte (mb, CEE_RET);
3157 mono_mb_emit_restore_result (mb, sig->ret);
3162 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3163 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3165 res = mono_mb_create_and_cache (cache, sig,
3166 mb, sig, sig->param_count + 16);
3175 MonoMethodSignature *sig;
3177 } SignaturePointerPair;
3180 signature_pointer_pair_hash (gconstpointer data)
3182 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3184 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3188 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3190 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3191 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3195 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3197 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3199 return pair->pointer == user_data;
3203 free_signature_pointer_pair (SignaturePointerPair *pair)
3209 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3211 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3213 MonoMethodBuilder *mb;
3216 gpointer cache_key = NULL;
3217 SignaturePointerPair key;
3218 SignaturePointerPair *new_key;
3219 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3220 int pos0, pos1, pos2;
3222 MonoClass *target_class = NULL;
3223 gboolean closed_over_null = FALSE;
3224 MonoGenericContext *ctx = NULL;
3225 MonoGenericContainer *container = NULL;
3226 MonoMethod *orig_method = NULL;
3228 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3232 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3233 !strcmp (method->name, "Invoke"));
3235 invoke_sig = sig = mono_signature_no_pinvoke (method);
3238 * If the delegate target is null, and the target method is not static, a virtual
3239 * call is made to that method with the first delegate argument as this. This is
3240 * a non-documented .NET feature.
3243 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3244 if (target_method->is_inflated) {
3246 MonoType *target_type;
3248 g_assert (method->signature->hasthis);
3249 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3250 mono_method_get_context (method), &error);
3251 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3252 target_class = mono_class_from_mono_type (target_type);
3254 target_class = target_method->klass;
3257 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3260 if (static_method_with_first_arg_bound) {
3261 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3262 g_assert (!callvirt);
3263 invoke_sig = mono_method_signature (target_method);
3267 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3269 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3270 orig_method = method;
3271 ctx = &((MonoMethodInflated*)method)->context;
3272 method = ((MonoMethodInflated*)method)->declaring;
3274 container = mono_method_get_generic_container (method);
3276 container = method->klass->generic_container;
3277 g_assert (container);
3279 invoke_sig = sig = mono_signature_no_pinvoke (method);
3286 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3287 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3290 cache_key = method->klass;
3291 } else if (static_method_with_first_arg_bound) {
3292 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3293 (GHashFunc)mono_signature_hash,
3294 (GCompareFunc)mono_metadata_signature_equal);
3296 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3298 res = mono_marshal_find_in_cache (cache, invoke_sig);
3301 cache_key = invoke_sig;
3302 } else if (callvirt) {
3303 GHashTable **cache_ptr;
3305 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3307 /* We need to cache the signature+method pair */
3308 mono_marshal_lock ();
3310 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3312 key.sig = invoke_sig;
3313 key.pointer = target_method;
3314 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3315 mono_marshal_unlock ();
3319 // Inflated methods should not be in this cache because it's not stored on the imageset.
3320 g_assert (!method->is_inflated);
3321 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3322 (GHashFunc)mono_signature_hash,
3323 (GCompareFunc)mono_metadata_signature_equal);
3324 res = mono_marshal_find_in_cache (cache, sig);
3330 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3331 static_sig->hasthis = 0;
3332 if (!static_method_with_first_arg_bound)
3333 invoke_sig = static_sig;
3335 if (static_method_with_first_arg_bound)
3336 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3337 else if (closed_over_null)
3338 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3340 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3342 name = mono_signature_to_name (invoke_sig, "invoke");
3344 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3346 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3350 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3352 /* allocate local 0 (object) */
3353 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3354 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3355 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3356 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3357 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3360 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3362 g_assert (sig->hasthis);
3365 * {type: sig->ret} res;
3366 * if (delegates == null) {
3367 * return this.<target> ( args .. );
3369 * int i = 0, len = this.delegates.Length;
3371 * res = this.delegates [i].Invoke ( args .. );
3372 * } while (++i < len);
3377 /* this wrapper can be used in unmanaged-managed transitions */
3378 emit_thread_interrupt_checkpoint (mb);
3380 /* delegates = this.delegates */
3381 mono_mb_emit_ldarg (mb, 0);
3382 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3383 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3384 mono_mb_emit_stloc (mb, local_delegates);
3387 /* if (delegates == null) */
3388 mono_mb_emit_ldloc (mb, local_delegates);
3389 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3391 /* return target.<target_method|method_ptr> ( args .. ); */
3393 /* target = d.target; */
3394 mono_mb_emit_ldarg (mb, 0);
3395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3396 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3397 mono_mb_emit_stloc (mb, local_target);
3399 /*static methods with bound first arg can have null target and still be bound*/
3400 if (!static_method_with_first_arg_bound) {
3401 /* if target != null */
3402 mono_mb_emit_ldloc (mb, local_target);
3403 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3405 /* then call this->method_ptr nonstatic */
3408 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3410 mono_mb_emit_ldloc (mb, local_target);
3411 for (i = 0; i < sig->param_count; ++i)
3412 mono_mb_emit_ldarg (mb, i + 1);
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3415 mono_mb_emit_byte (mb, CEE_LDIND_I);
3416 mono_mb_emit_ldarg (mb, 0);
3417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3418 mono_mb_emit_byte (mb, CEE_LDIND_I);
3419 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3420 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3421 mono_mb_emit_byte (mb, CEE_RET);
3424 /* else [target == null] call this->method_ptr static */
3425 mono_mb_patch_branch (mb, pos0);
3429 if (!closed_over_null) {
3430 if (target_class->valuetype) {
3431 mono_mb_emit_ldarg (mb, 1);
3432 for (i = 1; i < sig->param_count; ++i)
3433 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_op (mb, CEE_CALL, target_method);
3436 mono_mb_emit_ldarg (mb, 1);
3437 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3438 for (i = 1; i < sig->param_count; ++i)
3439 mono_mb_emit_ldarg (mb, i + 1);
3440 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3443 mono_mb_emit_byte (mb, CEE_LDNULL);
3444 for (i = 0; i < sig->param_count; ++i)
3445 mono_mb_emit_ldarg (mb, i + 1);
3446 mono_mb_emit_op (mb, CEE_CALL, target_method);
3449 if (static_method_with_first_arg_bound) {
3450 mono_mb_emit_ldloc (mb, local_target);
3451 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3452 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3454 for (i = 0; i < sig->param_count; ++i)
3455 mono_mb_emit_ldarg (mb, i + 1);
3456 mono_mb_emit_ldarg (mb, 0);
3457 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3458 mono_mb_emit_byte (mb, CEE_LDIND_I);
3459 mono_mb_emit_ldarg (mb, 0);
3460 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3461 mono_mb_emit_byte (mb, CEE_LDIND_I);
3462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3463 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3466 mono_mb_emit_byte (mb, CEE_RET);
3468 /* else [delegates != null] */
3469 mono_mb_patch_branch (mb, pos2);
3471 /* len = delegates.Length; */
3472 mono_mb_emit_ldloc (mb, local_delegates);
3473 mono_mb_emit_byte (mb, CEE_LDLEN);
3474 mono_mb_emit_byte (mb, CEE_CONV_I4);
3475 mono_mb_emit_stloc (mb, local_len);
3478 mono_mb_emit_icon (mb, 0);
3479 mono_mb_emit_stloc (mb, local_i);
3481 pos1 = mono_mb_get_label (mb);
3483 /* d = delegates [i]; */
3484 mono_mb_emit_ldloc (mb, local_delegates);
3485 mono_mb_emit_ldloc (mb, local_i);
3486 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3487 mono_mb_emit_stloc (mb, local_d);
3489 /* res = d.Invoke ( args .. ); */
3490 mono_mb_emit_ldloc (mb, local_d);
3491 for (i = 0; i < sig->param_count; i++)
3492 mono_mb_emit_ldarg (mb, i + 1);
3494 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3497 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3498 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3501 mono_mb_emit_stloc (mb, local_res);
3504 mono_mb_emit_add_to_local (mb, local_i, 1);
3507 mono_mb_emit_ldloc (mb, local_i);
3508 mono_mb_emit_ldloc (mb, local_len);
3509 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3513 mono_mb_emit_ldloc (mb, local_res);
3514 mono_mb_emit_byte (mb, CEE_RET);
3516 mb->skip_visibility = 1;
3517 #endif /* DISABLE_JIT */
3519 info = mono_wrapper_info_create (mb, subtype);
3524 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3525 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3526 } else if (callvirt) {
3527 new_key = g_new0 (SignaturePointerPair, 1);
3530 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3534 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3538 /* mono_method_print_code (res); */
3544 * the returned method invokes all methods in a multicast delegate.
3547 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3549 gboolean callvirt = FALSE;
3550 gboolean static_method_with_first_arg_bound = FALSE;
3551 MonoMethod *target_method = NULL;
3552 MonoMethodSignature *sig;
3554 sig = mono_signature_no_pinvoke (method);
3556 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3558 target_method = del->method;
3561 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3562 static_method_with_first_arg_bound = TRUE;
3563 target_method = del->method;
3566 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3570 MonoMethodSignature *ctor_sig;
3571 MonoMethodSignature *sig;
3574 /* protected by the marshal lock, contains CtorSigPair pointers */
3575 static GSList *strsig_list = NULL;
3577 static MonoMethodSignature *
3578 lookup_string_ctor_signature (MonoMethodSignature *sig)
3580 MonoMethodSignature *callsig;
3584 mono_marshal_lock ();
3586 for (item = strsig_list; item; item = item->next) {
3587 cs = (CtorSigPair *)item->data;
3588 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3589 * because it is lock-free.
3591 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3596 mono_marshal_unlock ();
3600 static MonoMethodSignature *
3601 add_string_ctor_signature (MonoMethod *method)
3603 MonoMethodSignature *callsig;
3606 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3607 callsig->ret = &mono_defaults.string_class->byval_arg;
3608 cs = g_new (CtorSigPair, 1);
3610 cs->ctor_sig = mono_method_signature (method);
3612 mono_marshal_lock ();
3613 strsig_list = g_slist_prepend (strsig_list, cs);
3614 mono_marshal_unlock ();
3619 * mono_marshal_get_string_ctor_signature:
3621 * Return the modified signature used by string ctors (they return the newly created
3624 MonoMethodSignature*
3625 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3627 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3629 sig = add_string_ctor_signature (method);
3635 get_runtime_invoke_type (MonoType *t, gboolean ret)
3638 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3640 /* Can't share this with 'I' as that needs another indirection */
3641 return &mono_defaults.int_class->this_arg;
3644 if (MONO_TYPE_IS_REFERENCE (t))
3645 return &mono_defaults.object_class->byval_arg;
3648 /* The result needs to be boxed */
3653 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3656 return &mono_defaults.sbyte_class->byval_arg;
3658 return &mono_defaults.int16_class->byval_arg;
3660 return &mono_defaults.int32_class->byval_arg;
3663 return &mono_defaults.int64_class->byval_arg;
3664 case MONO_TYPE_BOOLEAN:
3665 return &mono_defaults.byte_class->byval_arg;
3666 case MONO_TYPE_CHAR:
3667 return &mono_defaults.uint16_class->byval_arg;
3669 return &mono_defaults.int_class->byval_arg;
3670 case MONO_TYPE_VALUETYPE:
3671 if (t->data.klass->enumtype) {
3672 t = mono_class_enum_basetype (t->data.klass);
3682 * mono_marshal_get_runtime_invoke_sig:
3684 * Return a common signature used for sharing runtime invoke wrappers.
3686 static MonoMethodSignature*
3687 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3689 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3692 res->generic_param_count = 0;
3693 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3694 for (i = 0; i < res->param_count; ++i)
3695 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3701 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3703 /* Can't share wrappers which return a vtype since it needs to be boxed */
3704 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))
3707 return mono_metadata_signature_equal (sig1, sig2);
3715 * Emit the call to the wrapper method from a runtime invoke wrapper.
3718 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3719 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3721 gboolean virtual_, gboolean need_direct_wrapper)
3723 static MonoString *string_dummy = NULL;
3725 int *tmp_nullable_locals;
3726 gboolean void_ret = FALSE;
3727 gboolean string_ctor = method && method->string_ctor;
3729 /* to make it work with our special string constructors */
3730 if (!string_dummy) {
3731 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3732 string_dummy = mono_string_new_wrapper ("dummy");
3736 g_assert (sig->hasthis);
3737 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3742 if (mono_gc_is_moving ()) {
3743 mono_mb_emit_ptr (mb, &string_dummy);
3744 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3746 mono_mb_emit_ptr (mb, string_dummy);
3749 mono_mb_emit_ldarg (mb, 0);
3753 tmp_nullable_locals = g_new0 (int, sig->param_count);
3755 for (i = 0; i < sig->param_count; i++) {
3756 MonoType *t = sig->params [i];
3759 mono_mb_emit_ldarg (mb, 1);
3761 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3762 mono_mb_emit_byte (mb, CEE_ADD);
3766 mono_mb_emit_byte (mb, CEE_LDIND_I);
3767 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3768 * So to make this work we unbox it to a local variablee and push a reference to that.
3770 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3771 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3773 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3774 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3775 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3780 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3781 type = sig->params [i]->type;
3785 case MONO_TYPE_BOOLEAN:
3789 case MONO_TYPE_CHAR:
3798 mono_mb_emit_byte (mb, CEE_LDIND_I);
3799 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3801 case MONO_TYPE_STRING:
3802 case MONO_TYPE_CLASS:
3803 case MONO_TYPE_ARRAY:
3805 case MONO_TYPE_SZARRAY:
3806 case MONO_TYPE_OBJECT:
3807 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3809 case MONO_TYPE_GENERICINST:
3810 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3811 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3816 case MONO_TYPE_VALUETYPE:
3817 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3818 type = mono_class_enum_basetype (t->data.klass)->type;
3821 mono_mb_emit_byte (mb, CEE_LDIND_I);
3822 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3823 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3824 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3825 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3827 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3831 g_assert_not_reached ();
3836 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3837 } else if (need_direct_wrapper) {
3838 mono_mb_emit_op (mb, CEE_CALL, method);
3840 mono_mb_emit_ldarg (mb, 3);
3841 mono_mb_emit_calli (mb, callsig);
3844 if (sig->ret->byref) {
3846 g_assert_not_reached ();
3849 switch (sig->ret->type) {
3850 case MONO_TYPE_VOID:
3854 case MONO_TYPE_BOOLEAN:
3855 case MONO_TYPE_CHAR:
3868 case MONO_TYPE_VALUETYPE:
3869 case MONO_TYPE_TYPEDBYREF:
3870 case MONO_TYPE_GENERICINST:
3871 /* box value types */
3872 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3874 case MONO_TYPE_STRING:
3875 case MONO_TYPE_CLASS:
3876 case MONO_TYPE_ARRAY:
3877 case MONO_TYPE_SZARRAY:
3878 case MONO_TYPE_OBJECT:
3882 /* The result is an IntPtr */
3883 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3886 g_assert_not_reached ();
3890 mono_mb_emit_stloc (mb, loc_res);
3892 /* Convert back nullable-byref arguments */
3893 for (i = 0; i < sig->param_count; i++) {
3894 MonoType *t = sig->params [i];
3897 * Box the result and put it back into the array, the caller will have
3898 * to obtain it from there.
3900 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3901 mono_mb_emit_ldarg (mb, 1);
3902 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3903 mono_mb_emit_byte (mb, CEE_ADD);
3905 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3906 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3908 mono_mb_emit_byte (mb, CEE_STIND_REF);
3912 g_free (tmp_nullable_locals);
3916 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3917 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3918 gboolean virtual_, gboolean need_direct_wrapper)
3921 MonoExceptionClause *clause;
3922 int loc_res, loc_exc;
3924 /* The wrapper looks like this:
3930 * } catch (Exception e) {
3938 /* allocate local 0 (object) tmp */
3939 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3940 /* allocate local 1 (object) exc */
3941 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3943 /* *exc is assumed to be initialized to NULL by the caller */
3945 mono_mb_emit_byte (mb, CEE_LDARG_2);
3946 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3951 labels [1] = mono_mb_get_label (mb);
3952 emit_thread_force_interrupt_checkpoint (mb);
3953 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3955 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3957 /* Add a try clause around the call */
3958 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3959 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3960 clause->data.catch_class = mono_defaults.exception_class;
3961 clause->try_offset = labels [1];
3962 clause->try_len = mono_mb_get_label (mb) - labels [1];
3964 clause->handler_offset = mono_mb_get_label (mb);
3967 mono_mb_emit_stloc (mb, loc_exc);
3968 mono_mb_emit_byte (mb, CEE_LDARG_2);
3969 mono_mb_emit_ldloc (mb, loc_exc);
3970 mono_mb_emit_byte (mb, CEE_STIND_REF);
3972 mono_mb_emit_branch (mb, CEE_LEAVE);
3974 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3976 mono_mb_set_clauses (mb, 1, clause);
3978 mono_mb_patch_branch (mb, labels [2]);
3979 mono_mb_emit_ldloc (mb, loc_res);
3980 mono_mb_emit_byte (mb, CEE_RET);
3985 mono_mb_patch_branch (mb, labels [0]);
3986 emit_thread_force_interrupt_checkpoint (mb);
3987 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3989 mono_mb_emit_ldloc (mb, 0);
3990 mono_mb_emit_byte (mb, CEE_RET);
3995 * generates IL code for the runtime invoke function
3996 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3998 * we also catch exceptions if exc != null
3999 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4000 * it means that the compiled code for METHOD does not have to be looked up
4001 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4002 * its METHOD argument.
4005 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4007 MonoMethodSignature *sig, *csig, *callsig;
4008 MonoMethodBuilder *mb;
4009 GHashTable *cache = NULL;
4010 MonoClass *target_klass;
4011 MonoMethod *res = NULL;
4012 static MonoMethodSignature *cctor_signature = NULL;
4013 static MonoMethodSignature *finalize_signature = NULL;
4015 const char *param_names [16];
4016 gboolean need_direct_wrapper = FALSE;
4021 if (!cctor_signature) {
4022 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4023 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4025 if (!finalize_signature) {
4026 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4027 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4028 finalize_signature->hasthis = 1;
4032 need_direct_wrapper = TRUE;
4035 * Use a separate cache indexed by methods to speed things up and to avoid the
4036 * boundless mempool growth caused by the signature_dup stuff below.
4039 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4041 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4043 res = mono_marshal_find_in_cache (cache, method);
4047 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4048 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4050 * Array Get/Set/Address methods. The JIT implements them using inline code
4051 * so we need to create an invoke wrapper which calls the method directly.
4053 need_direct_wrapper = TRUE;
4056 if (method->string_ctor) {
4057 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4059 callsig = add_string_ctor_signature (method);
4060 /* Can't share this as we push a string as this */
4061 need_direct_wrapper = TRUE;
4063 if (method_is_dynamic (method))
4064 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4066 callsig = mono_method_signature (method);
4069 sig = mono_method_signature (method);
4071 target_klass = get_wrapper_target_class (method->klass->image);
4073 /* Try to share wrappers for non-corlib methods with simple signatures */
4074 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4075 callsig = cctor_signature;
4076 target_klass = mono_defaults.object_class;
4077 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4078 callsig = finalize_signature;
4079 target_klass = mono_defaults.object_class;
4082 if (need_direct_wrapper) {
4083 /* Already searched at the start */
4085 MonoMethodSignature *tmp_sig;
4087 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4088 GHashTable **cache_table = NULL;
4090 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4091 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4093 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4095 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4096 (GCompareFunc)runtime_invoke_signature_equal);
4098 /* from mono_marshal_find_in_cache */
4099 mono_marshal_lock ();
4100 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4101 mono_marshal_unlock ();
4108 /* Make a copy of the signature from the image mempool */
4110 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4114 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4116 csig->ret = &mono_defaults.object_class->byval_arg;
4117 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4118 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4120 csig->params [0] = &mono_defaults.object_class->byval_arg;
4121 csig->params [1] = &mono_defaults.int_class->byval_arg;
4122 csig->params [2] = &mono_defaults.int_class->byval_arg;
4123 csig->params [3] = &mono_defaults.int_class->byval_arg;
4126 /* This is called from runtime code so it has to be cdecl */
4127 csig->call_convention = MONO_CALL_C;
4130 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4131 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4135 param_names [0] = "this";
4136 param_names [1] = "params";
4137 param_names [2] = "exc";
4138 param_names [3] = "method";
4139 mono_mb_set_param_names (mb, param_names);
4141 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4144 if (need_direct_wrapper) {
4146 mb->skip_visibility = 1;
4148 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4149 info->d.runtime_invoke.method = method;
4150 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4152 /* taken from mono_mb_create_and_cache */
4153 mono_marshal_lock ();
4154 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4155 mono_marshal_unlock ();
4157 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4158 info->d.runtime_invoke.sig = callsig;
4160 /* Somebody may have created it before us */
4163 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4165 mono_marshal_lock ();
4166 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4168 GHashTable *direct_cache;
4170 g_hash_table_insert (cache, callsig, res);
4171 /* Can't insert it into wrapper_hash since the key is a signature */
4172 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4174 g_hash_table_insert (direct_cache, method, res);
4176 mono_free_method (newm);
4178 mono_marshal_unlock ();
4181 /* end mono_mb_create_and_cache */
4190 * mono_marshal_get_runtime_invoke_dynamic:
4192 * Return a method which can be used to invoke managed methods from native code
4194 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4195 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4196 * ARGS should point to an architecture specific structure containing
4197 * the arguments and space for the return value.
4198 * The other arguments are the same as for runtime_invoke (), except that
4199 * ARGS should contain the this argument too.
4200 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4201 * is only one copy of it, which is useful in full-aot.
4202 * The wrapper info for the wrapper is a WrapperInfo structure.
4205 mono_marshal_get_runtime_invoke_dynamic (void)
4207 static MonoMethod *method;
4208 MonoMethodSignature *csig;
4209 MonoExceptionClause *clause;
4210 MonoMethodBuilder *mb;
4218 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4220 csig->ret = &mono_defaults.void_class->byval_arg;
4221 csig->params [0] = &mono_defaults.int_class->byval_arg;
4222 csig->params [1] = &mono_defaults.int_class->byval_arg;
4223 csig->params [2] = &mono_defaults.int_class->byval_arg;
4224 csig->params [3] = &mono_defaults.int_class->byval_arg;
4226 name = g_strdup ("runtime_invoke_dynamic");
4227 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4231 /* allocate local 0 (object) tmp */
4232 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4233 /* allocate local 1 (object) exc */
4234 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4236 /* cond set *exc to null */
4237 mono_mb_emit_byte (mb, CEE_LDARG_1);
4238 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4239 mono_mb_emit_byte (mb, 3);
4240 mono_mb_emit_byte (mb, CEE_LDARG_1);
4241 mono_mb_emit_byte (mb, CEE_LDNULL);
4242 mono_mb_emit_byte (mb, CEE_STIND_REF);
4244 emit_thread_force_interrupt_checkpoint (mb);
4246 mono_mb_emit_byte (mb, CEE_LDARG_0);
4247 mono_mb_emit_byte (mb, CEE_LDARG_2);
4248 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4249 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4251 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4253 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4254 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4255 clause->try_len = mono_mb_get_label (mb);
4258 clause->data.filter_offset = mono_mb_get_label (mb);
4260 mono_mb_emit_byte (mb, CEE_POP);
4261 mono_mb_emit_byte (mb, CEE_LDARG_1);
4262 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4263 mono_mb_emit_byte (mb, CEE_PREFIX1);
4264 mono_mb_emit_byte (mb, CEE_CGT_UN);
4265 mono_mb_emit_byte (mb, CEE_PREFIX1);
4266 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4268 clause->handler_offset = mono_mb_get_label (mb);
4271 /* store exception */
4272 mono_mb_emit_stloc (mb, 1);
4274 mono_mb_emit_byte (mb, CEE_LDARG_1);
4275 mono_mb_emit_ldloc (mb, 1);
4276 mono_mb_emit_byte (mb, CEE_STIND_REF);
4278 mono_mb_emit_byte (mb, CEE_LDNULL);
4279 mono_mb_emit_stloc (mb, 0);
4281 /* Check for the abort exception */
4282 mono_mb_emit_ldloc (mb, 1);
4283 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4284 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4286 /* Delay the abort exception */
4287 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4289 mono_mb_patch_short_branch (mb, posna);
4290 mono_mb_emit_branch (mb, CEE_LEAVE);
4292 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4294 mono_mb_set_clauses (mb, 1, clause);
4297 mono_mb_patch_branch (mb, pos);
4298 //mono_mb_emit_ldloc (mb, 0);
4299 mono_mb_emit_byte (mb, CEE_RET);
4300 #endif /* DISABLE_JIT */
4302 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4304 mono_marshal_lock ();
4305 /* double-checked locking */
4307 method = mono_mb_create (mb, csig, 16, info);
4309 mono_marshal_unlock ();
4317 * mono_marshal_get_runtime_invoke_for_sig:
4319 * Return a runtime invoke wrapper for a given signature.
4322 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4324 MonoMethodSignature *csig, *callsig;
4325 MonoMethodBuilder *mb;
4327 GHashTable *cache = NULL;
4328 GHashTable **cache_table = NULL;
4329 MonoMethod *res = NULL;
4331 const char *param_names [16];
4334 /* A simplified version of mono_marshal_get_runtime_invoke */
4336 image = mono_defaults.corlib;
4338 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4340 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4342 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4343 (GCompareFunc)runtime_invoke_signature_equal);
4345 /* from mono_marshal_find_in_cache */
4346 mono_marshal_lock ();
4347 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4348 mono_marshal_unlock ();
4355 /* Make a copy of the signature from the image mempool */
4356 callsig = mono_metadata_signature_dup_full (image, callsig);
4358 csig = mono_metadata_signature_alloc (image, 4);
4359 csig->ret = &mono_defaults.object_class->byval_arg;
4360 csig->params [0] = &mono_defaults.object_class->byval_arg;
4361 csig->params [1] = &mono_defaults.int_class->byval_arg;
4362 csig->params [2] = &mono_defaults.int_class->byval_arg;
4363 csig->params [3] = &mono_defaults.int_class->byval_arg;
4366 /* This is called from runtime code so it has to be cdecl */
4367 csig->call_convention = MONO_CALL_C;
4370 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4371 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4375 param_names [0] = "this";
4376 param_names [1] = "params";
4377 param_names [2] = "exc";
4378 param_names [3] = "method";
4379 mono_mb_set_param_names (mb, param_names);
4381 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4384 /* taken from mono_mb_create_and_cache */
4385 mono_marshal_lock ();
4386 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4387 mono_marshal_unlock ();
4389 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4390 info->d.runtime_invoke.sig = callsig;
4392 /* Somebody may have created it before us */
4395 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4397 mono_marshal_lock ();
4398 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4401 g_hash_table_insert (cache, callsig, res);
4403 mono_free_method (newm);
4405 mono_marshal_unlock ();
4408 /* end mono_mb_create_and_cache */
4417 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4419 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4420 klass->name_space, klass->name);
4422 mono_mb_emit_exception_marshal_directive (mb, msg);
4427 * generates IL code for the icall wrapper (the generated method
4428 * calls the unmanaged code in func)
4429 * The wrapper info for the wrapper is a WrapperInfo structure.
4432 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4434 MonoMethodSignature *csig, *csig2;
4435 MonoMethodBuilder *mb;
4440 g_assert (sig->pinvoke);
4442 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4444 mb->method->save_lmf = 1;
4446 /* Add an explicit this argument */
4448 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4450 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4454 mono_mb_emit_byte (mb, CEE_LDARG_0);
4456 for (i = 0; i < sig->param_count; i++)
4457 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4459 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4460 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4461 mono_mb_emit_calli (mb, csig2);
4462 if (check_exceptions)
4463 emit_thread_interrupt_checkpoint (mb);
4464 mono_mb_emit_byte (mb, CEE_RET);
4467 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4469 if (csig->call_convention == MONO_CALL_VARARG)
4470 csig->call_convention = 0;
4472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4473 info->d.icall.func = (gpointer)func;
4474 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4481 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4482 MonoMarshalSpec *spec,
4483 int conv_arg, MonoType **conv_arg_type,
4484 MarshalAction action)
4487 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4488 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4494 static MonoClass *ICustomMarshaler = NULL;
4495 static MonoMethod *cleanup_native, *cleanup_managed;
4496 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4497 MonoMethod *get_instance = NULL;
4498 MonoMethodBuilder *mb = m->mb;
4499 char *exception_msg = NULL;
4503 if (!ICustomMarshaler) {
4504 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4506 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4507 goto handle_exception;
4510 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4511 g_assert (cleanup_native);
4512 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4513 g_assert (cleanup_managed);
4514 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4515 g_assert (marshal_managed_to_native);
4516 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4517 g_assert (marshal_native_to_managed);
4519 mono_memory_barrier ();
4520 ICustomMarshaler = klass;
4523 if (spec->data.custom_data.image)
4524 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4526 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4527 g_assert (mtype != NULL);
4528 mono_error_assert_ok (&error);
4529 mklass = mono_class_from_mono_type (mtype);
4530 g_assert (mklass != NULL);
4532 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4533 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4535 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4537 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4538 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4539 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4540 (get_sig->params [0]->type != MONO_TYPE_STRING))
4541 get_instance = NULL;
4545 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);
4548 /* Throw exception and emit compensation code if neccesary */
4549 if (exception_msg) {
4551 case MARSHAL_ACTION_CONV_IN:
4552 case MARSHAL_ACTION_CONV_RESULT:
4553 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4554 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4555 mono_mb_emit_byte (mb, CEE_POP);
4557 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4558 g_free (exception_msg);
4561 case MARSHAL_ACTION_PUSH:
4562 mono_mb_emit_byte (mb, CEE_LDNULL);
4570 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4571 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4574 case MARSHAL_ACTION_CONV_IN:
4576 case MONO_TYPE_CLASS:
4577 case MONO_TYPE_OBJECT:
4578 case MONO_TYPE_STRING:
4579 case MONO_TYPE_ARRAY:
4580 case MONO_TYPE_SZARRAY:
4581 case MONO_TYPE_VALUETYPE:
4585 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4586 g_assert_not_reached ();
4590 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4592 mono_mb_emit_byte (mb, CEE_LDNULL);
4593 mono_mb_emit_stloc (mb, conv_arg);
4595 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4598 /* Minic MS.NET behavior */
4599 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4602 /* Check for null */
4603 mono_mb_emit_ldarg (mb, argnum);
4605 mono_mb_emit_byte (mb, CEE_LDIND_I);
4606 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4608 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4610 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4612 mono_mb_emit_ldarg (mb, argnum);
4614 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4616 if (t->type == MONO_TYPE_VALUETYPE) {
4618 * Since we can't determine the type of the argument, we
4619 * will assume the unmanaged function takes a pointer.
4621 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4623 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4626 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4627 mono_mb_emit_stloc (mb, conv_arg);
4629 mono_mb_patch_branch (mb, pos2);
4632 case MARSHAL_ACTION_CONV_OUT:
4633 /* Check for null */
4634 mono_mb_emit_ldloc (mb, conv_arg);
4635 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4638 mono_mb_emit_ldarg (mb, argnum);
4640 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4642 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4644 mono_mb_emit_ldloc (mb, conv_arg);
4645 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4646 mono_mb_emit_byte (mb, CEE_STIND_REF);
4647 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4648 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4650 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4652 mono_mb_emit_ldloc (mb, conv_arg);
4653 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4655 /* We have nowhere to store the result */
4656 mono_mb_emit_byte (mb, CEE_POP);
4659 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4661 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4663 mono_mb_emit_ldloc (mb, conv_arg);
4665 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4667 mono_mb_patch_branch (mb, pos2);
4670 case MARSHAL_ACTION_PUSH:
4672 mono_mb_emit_ldloc_addr (mb, conv_arg);
4674 mono_mb_emit_ldloc (mb, conv_arg);
4677 case MARSHAL_ACTION_CONV_RESULT:
4678 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4680 mono_mb_emit_stloc (mb, 3);
4682 mono_mb_emit_ldloc (mb, 3);
4683 mono_mb_emit_stloc (mb, loc1);
4685 /* Check for null */
4686 mono_mb_emit_ldloc (mb, 3);
4687 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4689 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4691 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4692 mono_mb_emit_byte (mb, CEE_DUP);
4694 mono_mb_emit_ldloc (mb, 3);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4696 mono_mb_emit_stloc (mb, 3);
4698 mono_mb_emit_ldloc (mb, loc1);
4699 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4701 mono_mb_patch_branch (mb, pos2);
4704 case MARSHAL_ACTION_MANAGED_CONV_IN:
4705 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4707 mono_mb_emit_byte (mb, CEE_LDNULL);
4708 mono_mb_emit_stloc (mb, conv_arg);
4710 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4713 /* Check for null */
4714 mono_mb_emit_ldarg (mb, argnum);
4716 mono_mb_emit_byte (mb, CEE_LDIND_I);
4717 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4719 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4720 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4722 mono_mb_emit_ldarg (mb, argnum);
4724 mono_mb_emit_byte (mb, CEE_LDIND_I);
4726 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4727 mono_mb_emit_stloc (mb, conv_arg);
4729 mono_mb_patch_branch (mb, pos2);
4732 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4733 g_assert (!t->byref);
4735 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4737 mono_mb_emit_stloc (mb, 3);
4739 mono_mb_emit_ldloc (mb, 3);
4740 mono_mb_emit_stloc (mb, loc1);
4742 /* Check for null */
4743 mono_mb_emit_ldloc (mb, 3);
4744 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4746 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4747 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4748 mono_mb_emit_byte (mb, CEE_DUP);
4750 mono_mb_emit_ldloc (mb, 3);
4751 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4752 mono_mb_emit_stloc (mb, 3);
4754 mono_mb_emit_ldloc (mb, loc1);
4755 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4757 mono_mb_patch_branch (mb, pos2);
4760 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4762 /* Check for null */
4763 mono_mb_emit_ldloc (mb, conv_arg);
4764 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4767 mono_mb_emit_ldarg (mb, argnum);
4769 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4771 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4773 mono_mb_emit_ldloc (mb, conv_arg);
4774 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4775 mono_mb_emit_byte (mb, CEE_STIND_I);
4778 /* Call CleanUpManagedData */
4779 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4781 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4783 mono_mb_emit_ldloc (mb, conv_arg);
4784 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4786 mono_mb_patch_branch (mb, pos2);
4790 g_assert_not_reached ();
4798 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4799 MonoMarshalSpec *spec,
4800 int conv_arg, MonoType **conv_arg_type,
4801 MarshalAction action)
4804 MonoMethodBuilder *mb = m->mb;
4807 case MARSHAL_ACTION_CONV_IN: {
4808 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4810 g_assert (t->type == MONO_TYPE_OBJECT);
4811 g_assert (!t->byref);
4813 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4814 mono_mb_emit_ldarg (mb, argnum);
4815 mono_mb_emit_icon (mb, encoding);
4816 mono_mb_emit_icon (mb, t->attrs);
4817 mono_mb_emit_icall (mb, mono_marshal_asany);
4818 mono_mb_emit_stloc (mb, conv_arg);
4822 case MARSHAL_ACTION_PUSH:
4823 mono_mb_emit_ldloc (mb, conv_arg);
4826 case MARSHAL_ACTION_CONV_OUT: {
4827 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4829 mono_mb_emit_ldarg (mb, argnum);
4830 mono_mb_emit_ldloc (mb, conv_arg);
4831 mono_mb_emit_icon (mb, encoding);
4832 mono_mb_emit_icon (mb, t->attrs);
4833 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4838 g_assert_not_reached ();
4845 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4846 MonoMarshalSpec *spec,
4847 int conv_arg, MonoType **conv_arg_type,
4848 MarshalAction action)
4851 MonoMethodBuilder *mb = m->mb;
4852 MonoClass *klass, *date_time_class;
4855 klass = mono_class_from_mono_type (t);
4857 date_time_class = mono_class_get_date_time_class ();
4860 case MARSHAL_ACTION_CONV_IN:
4861 if (klass == date_time_class) {
4862 /* Convert it to an OLE DATE type */
4863 static MonoMethod *to_oadate;
4866 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4867 g_assert (to_oadate);
4869 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4872 mono_mb_emit_ldarg (mb, argnum);
4873 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4876 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4878 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4880 mono_mb_emit_ldarg_addr (mb, argnum);
4881 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4882 mono_mb_emit_stloc (mb, conv_arg);
4886 mono_mb_patch_branch (mb, pos);
4890 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4891 klass->blittable || klass->enumtype)
4894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4896 /* store the address of the source into local variable 0 */
4898 mono_mb_emit_ldarg (mb, argnum);
4900 mono_mb_emit_ldarg_addr (mb, argnum);
4902 mono_mb_emit_stloc (mb, 0);
4904 /* allocate space for the native struct and
4905 * store the address into local variable 1 (dest) */
4906 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4907 mono_mb_emit_byte (mb, CEE_PREFIX1);
4908 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4909 mono_mb_emit_stloc (mb, conv_arg);
4912 mono_mb_emit_ldloc (mb, 0);
4913 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4916 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4918 mono_mb_emit_ldloc (mb, conv_arg);
4919 mono_mb_emit_stloc (mb, 1);
4921 /* emit valuetype conversion code */
4922 emit_struct_conv (mb, klass, FALSE);
4926 mono_mb_patch_branch (mb, pos);
4929 case MARSHAL_ACTION_PUSH:
4930 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4932 g_assert (!t->byref);
4934 /* Have to change the signature since the vtype is passed byref */
4935 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4937 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4938 klass->blittable || klass->enumtype)
4939 mono_mb_emit_ldarg_addr (mb, argnum);
4941 mono_mb_emit_ldloc (mb, conv_arg);
4945 if (klass == date_time_class) {
4947 mono_mb_emit_ldloc_addr (mb, conv_arg);
4949 mono_mb_emit_ldloc (mb, conv_arg);
4953 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4954 klass->blittable || klass->enumtype) {
4955 mono_mb_emit_ldarg (mb, argnum);
4958 mono_mb_emit_ldloc (mb, conv_arg);
4960 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4961 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4965 case MARSHAL_ACTION_CONV_OUT:
4966 if (klass == date_time_class) {
4967 /* Convert from an OLE DATE type */
4968 static MonoMethod *from_oadate;
4973 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4975 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4976 g_assert (from_oadate);
4978 mono_mb_emit_ldarg (mb, argnum);
4979 mono_mb_emit_ldloc (mb, conv_arg);
4980 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4981 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4986 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4987 klass->blittable || klass->enumtype)
4991 /* dst = argument */
4992 mono_mb_emit_ldarg (mb, argnum);
4993 mono_mb_emit_stloc (mb, 1);
4995 mono_mb_emit_ldloc (mb, 1);
4996 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4998 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4999 /* src = tmp_locals [i] */
5000 mono_mb_emit_ldloc (mb, conv_arg);
5001 mono_mb_emit_stloc (mb, 0);
5003 /* emit valuetype conversion code */
5004 emit_struct_conv (mb, klass, TRUE);
5008 emit_struct_free (mb, klass, conv_arg);
5011 mono_mb_patch_branch (mb, pos);
5014 case MARSHAL_ACTION_CONV_RESULT:
5015 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5017 mono_mb_emit_stloc (mb, 3);
5021 /* load pointer to returned value type */
5022 g_assert (m->vtaddr_var);
5023 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5024 /* store the address of the source into local variable 0 */
5025 mono_mb_emit_stloc (mb, 0);
5027 mono_mb_emit_ldloc_addr (mb, 3);
5028 mono_mb_emit_stloc (mb, 1);
5030 /* emit valuetype conversion code */
5031 emit_struct_conv (mb, klass, TRUE);
5034 case MARSHAL_ACTION_MANAGED_CONV_IN:
5035 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5036 klass->blittable || klass->enumtype) {
5041 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5043 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5047 mono_mb_emit_ldarg (mb, argnum);
5049 mono_mb_emit_ldarg_addr (mb, argnum);
5050 mono_mb_emit_stloc (mb, 0);
5053 mono_mb_emit_ldloc (mb, 0);
5054 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5057 mono_mb_emit_ldloc_addr (mb, conv_arg);
5058 mono_mb_emit_stloc (mb, 1);
5060 /* emit valuetype conversion code */
5061 emit_struct_conv (mb, klass, TRUE);
5064 mono_mb_patch_branch (mb, pos);
5067 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5068 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5069 klass->blittable || klass->enumtype) {
5073 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5076 /* Check for null */
5077 mono_mb_emit_ldarg (mb, argnum);
5078 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5081 mono_mb_emit_ldloc_addr (mb, conv_arg);
5082 mono_mb_emit_stloc (mb, 0);
5085 mono_mb_emit_ldarg (mb, argnum);
5086 mono_mb_emit_stloc (mb, 1);
5088 /* emit valuetype conversion code */
5089 emit_struct_conv (mb, klass, FALSE);
5091 mono_mb_patch_branch (mb, pos2);
5094 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5095 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5096 klass->blittable || klass->enumtype) {
5097 mono_mb_emit_stloc (mb, 3);
5102 /* load pointer to returned value type */
5103 g_assert (m->vtaddr_var);
5104 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5106 /* store the address of the source into local variable 0 */
5107 mono_mb_emit_stloc (mb, 0);
5108 /* allocate space for the native struct and
5109 * store the address into dst_ptr */
5110 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5111 m->retobj_class = klass;
5112 g_assert (m->retobj_var);
5113 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5114 mono_mb_emit_byte (mb, CEE_CONV_I);
5115 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5116 mono_mb_emit_stloc (mb, 1);
5117 mono_mb_emit_ldloc (mb, 1);
5118 mono_mb_emit_stloc (mb, m->retobj_var);
5120 /* emit valuetype conversion code */
5121 emit_struct_conv (mb, klass, FALSE);
5125 g_assert_not_reached ();
5132 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5133 MonoMarshalSpec *spec,
5134 int conv_arg, MonoType **conv_arg_type,
5135 MarshalAction action)
5139 case MARSHAL_ACTION_CONV_IN:
5140 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5142 case MARSHAL_ACTION_MANAGED_CONV_IN:
5143 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5147 MonoMethodBuilder *mb = m->mb;
5148 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5149 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5153 case MARSHAL_ACTION_CONV_IN:
5154 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5155 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5158 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5161 mono_mb_emit_ldarg (mb, argnum);
5162 mono_mb_emit_byte (mb, CEE_LDIND_I);
5164 mono_mb_emit_ldarg (mb, argnum);
5167 if (conv == MONO_MARSHAL_CONV_INVALID) {
5168 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5169 mono_mb_emit_exception_marshal_directive (mb, msg);
5171 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5173 mono_mb_emit_stloc (mb, conv_arg);
5177 case MARSHAL_ACTION_CONV_OUT:
5178 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5179 if (conv == MONO_MARSHAL_CONV_INVALID) {
5180 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5181 mono_mb_emit_exception_marshal_directive (mb, msg);
5185 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5186 static MonoMethod *m;
5189 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5194 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5195 mono_mb_emit_exception_marshal_directive (mb, msg);
5200 * Have to allocate a new string with the same length as the original, and
5201 * copy the contents of the buffer pointed to by CONV_ARG into it.
5203 g_assert (t->byref);
5204 mono_mb_emit_ldarg (mb, argnum);
5205 mono_mb_emit_ldloc (mb, conv_arg);
5206 mono_mb_emit_ldarg (mb, argnum);
5207 mono_mb_emit_byte (mb, CEE_LDIND_I);
5208 mono_mb_emit_managed_call (mb, m, NULL);
5209 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5210 mono_mb_emit_byte (mb, CEE_STIND_REF);
5211 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5213 mono_mb_emit_ldarg (mb, argnum);
5214 mono_mb_emit_ldloc (mb, conv_arg);
5215 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5216 mono_mb_emit_byte (mb, stind_op);
5221 mono_mb_emit_ldloc (mb, conv_arg);
5222 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5223 mono_mb_emit_icall (mb, mono_free_bstr);
5225 mono_mb_emit_icall (mb, mono_marshal_free);
5229 case MARSHAL_ACTION_PUSH:
5230 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5231 mono_mb_emit_ldloc_addr (mb, conv_arg);
5233 mono_mb_emit_ldloc (mb, conv_arg);
5236 case MARSHAL_ACTION_CONV_RESULT:
5237 mono_mb_emit_stloc (mb, 0);
5239 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5240 if (conv == MONO_MARSHAL_CONV_INVALID) {
5241 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5242 mono_mb_emit_exception_marshal_directive (mb, msg);
5246 mono_mb_emit_ldloc (mb, 0);
5247 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5248 mono_mb_emit_stloc (mb, 3);
5250 /* free the string */
5251 mono_mb_emit_ldloc (mb, 0);
5252 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5253 mono_mb_emit_icall (mb, mono_free_bstr);
5255 mono_mb_emit_icall (mb, mono_marshal_free);
5258 case MARSHAL_ACTION_MANAGED_CONV_IN:
5259 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5261 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5264 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5268 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5269 if (conv == MONO_MARSHAL_CONV_INVALID) {
5270 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5271 mono_mb_emit_exception_marshal_directive (mb, msg);
5275 mono_mb_emit_ldarg (mb, argnum);
5277 mono_mb_emit_byte (mb, CEE_LDIND_I);
5278 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5279 mono_mb_emit_stloc (mb, conv_arg);
5282 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_ldloc (mb, conv_arg);
5288 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5289 mono_mb_emit_byte (mb, stind_op);
5294 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5295 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5296 /* We need to make a copy so the caller is able to free it */
5297 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5299 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5300 mono_mb_emit_stloc (mb, 3);
5304 g_assert_not_reached ();
5312 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5313 MonoMarshalSpec *spec, int conv_arg,
5314 MonoType **conv_arg_type, MarshalAction action)
5317 if (action == MARSHAL_ACTION_CONV_IN)
5318 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5320 MonoMethodBuilder *mb = m->mb;
5323 case MARSHAL_ACTION_CONV_IN: {
5324 MonoType *intptr_type;
5325 int dar_release_slot, pos;
5327 intptr_type = &mono_defaults.int_class->byval_arg;
5328 conv_arg = mono_mb_add_local (mb, intptr_type);
5329 *conv_arg_type = intptr_type;
5331 if (!sh_dangerous_add_ref)
5332 init_safe_handle ();
5334 mono_mb_emit_ldarg (mb, argnum);
5335 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5336 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5338 mono_mb_patch_branch (mb, pos);
5341 * My tests in show that ref SafeHandles are not really
5342 * passed as ref objects. Instead a NULL is passed as the
5345 mono_mb_emit_icon (mb, 0);
5346 mono_mb_emit_stloc (mb, conv_arg);
5350 /* Create local to hold the ref parameter to DangerousAddRef */
5351 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5353 /* set release = false; */
5354 mono_mb_emit_icon (mb, 0);
5355 mono_mb_emit_stloc (mb, dar_release_slot);
5357 /* safehandle.DangerousAddRef (ref release) */
5358 mono_mb_emit_ldarg (mb, argnum);
5359 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5360 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5362 /* Pull the handle field from SafeHandle */
5363 mono_mb_emit_ldarg (mb, argnum);
5364 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5365 mono_mb_emit_byte (mb, CEE_LDIND_I);
5366 mono_mb_emit_stloc (mb, conv_arg);
5371 case MARSHAL_ACTION_PUSH:
5373 mono_mb_emit_ldloc_addr (mb, conv_arg);
5375 mono_mb_emit_ldloc (mb, conv_arg);
5378 case MARSHAL_ACTION_CONV_OUT: {
5379 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5380 int dar_release_slot = conv_arg + 1;
5383 if (!sh_dangerous_release)
5384 init_safe_handle ();
5390 * My tests indicate that ref SafeHandles parameters are not actually
5391 * passed by ref, but instead a new Handle is created regardless of
5392 * whether a change happens in the unmanaged side.
5394 * Also, the Handle is created before calling into unmanaged code,
5395 * but we do not support that mechanism (getting to the original
5396 * handle) and it makes no difference where we create this
5398 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5400 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5403 /* refval = new SafeHandleDerived ()*/
5404 mono_mb_emit_ldarg (mb, argnum);
5405 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5406 mono_mb_emit_byte (mb, CEE_STIND_REF);
5408 /* refval.handle = returned_handle */
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5411 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5412 mono_mb_emit_ldloc (mb, conv_arg);
5413 mono_mb_emit_byte (mb, CEE_STIND_I);
5415 mono_mb_emit_ldloc (mb, dar_release_slot);
5416 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5417 mono_mb_emit_ldarg (mb, argnum);
5418 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5419 mono_mb_patch_branch (mb, label_next);
5424 case MARSHAL_ACTION_CONV_RESULT: {
5425 MonoMethod *ctor = NULL;
5426 int intptr_handle_slot;
5428 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5429 mono_mb_emit_byte (mb, CEE_POP);
5430 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5434 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5436 mono_mb_emit_byte (mb, CEE_POP);
5437 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5440 /* Store the IntPtr results into a local */
5441 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5442 mono_mb_emit_stloc (mb, intptr_handle_slot);
5444 /* Create return value */
5445 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5446 mono_mb_emit_stloc (mb, 3);
5448 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5449 mono_mb_emit_ldloc (mb, 3);
5450 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5451 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5452 mono_mb_emit_byte (mb, CEE_STIND_I);
5456 case MARSHAL_ACTION_MANAGED_CONV_IN:
5457 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5460 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5461 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5464 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5465 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5468 printf ("Unhandled case for MarshalAction: %d\n", action);
5476 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5477 MonoMarshalSpec *spec, int conv_arg,
5478 MonoType **conv_arg_type, MarshalAction action)
5481 if (action == MARSHAL_ACTION_CONV_IN)
5482 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5484 MonoMethodBuilder *mb = m->mb;
5487 case MARSHAL_ACTION_CONV_IN: {
5488 MonoType *intptr_type;
5490 intptr_type = &mono_defaults.int_class->byval_arg;
5491 conv_arg = mono_mb_add_local (mb, intptr_type);
5492 *conv_arg_type = intptr_type;
5495 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5496 mono_mb_emit_exception_marshal_directive (mb, msg);
5499 mono_mb_emit_ldarg_addr (mb, argnum);
5500 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5501 mono_mb_emit_byte (mb, CEE_ADD);
5502 mono_mb_emit_byte (mb, CEE_LDIND_I);
5503 mono_mb_emit_stloc (mb, conv_arg);
5507 case MARSHAL_ACTION_PUSH:
5508 mono_mb_emit_ldloc (mb, conv_arg);
5511 case MARSHAL_ACTION_CONV_OUT: {
5512 /* no resource release required */
5516 case MARSHAL_ACTION_CONV_RESULT: {
5517 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5518 mono_mb_emit_exception_marshal_directive (mb, msg);
5522 case MARSHAL_ACTION_MANAGED_CONV_IN:
5523 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5526 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5527 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5530 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5531 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5534 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5542 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5543 MonoMarshalSpec *spec,
5544 int conv_arg, MonoType **conv_arg_type,
5545 MarshalAction action)
5548 if (action == MARSHAL_ACTION_CONV_IN)
5549 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5551 MonoMethodBuilder *mb = m->mb;
5552 MonoClass *klass = mono_class_from_mono_type (t);
5556 case MARSHAL_ACTION_CONV_IN:
5557 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5558 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5560 m->orig_conv_args [argnum] = 0;
5562 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5563 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5564 mono_mb_emit_exception_marshal_directive (mb, msg);
5568 if (klass->delegate) {
5570 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5571 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5572 mono_mb_emit_exception_marshal_directive (mb, msg);
5574 mono_mb_emit_byte (mb, CEE_LDNULL);
5575 mono_mb_emit_stloc (mb, conv_arg);
5577 mono_mb_emit_ldarg (mb, argnum);
5578 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5579 mono_mb_emit_stloc (mb, conv_arg);
5581 } else if (klass == mono_defaults.stringbuilder_class) {
5582 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5583 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5587 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5588 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5589 mono_mb_emit_exception_marshal_directive (mb, msg);
5595 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5598 if (conv == MONO_MARSHAL_CONV_INVALID) {
5599 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5600 mono_mb_emit_exception_marshal_directive (mb, msg);
5604 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_byte (mb, CEE_LDIND_I);
5608 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5609 mono_mb_emit_stloc (mb, conv_arg);
5610 } else if (klass->blittable) {
5611 mono_mb_emit_byte (mb, CEE_LDNULL);
5612 mono_mb_emit_stloc (mb, conv_arg);
5614 mono_mb_emit_ldarg (mb, argnum);
5615 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5617 mono_mb_emit_ldarg (mb, argnum);
5618 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5619 mono_mb_emit_stloc (mb, conv_arg);
5621 mono_mb_patch_branch (mb, pos);
5624 mono_mb_emit_byte (mb, CEE_LDNULL);
5625 mono_mb_emit_stloc (mb, conv_arg);
5628 /* we dont need any conversions for out parameters */
5629 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5632 mono_mb_emit_ldarg (mb, argnum);
5633 mono_mb_emit_byte (mb, CEE_LDIND_I);
5636 mono_mb_emit_ldarg (mb, argnum);
5637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5638 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5641 /* store the address of the source into local variable 0 */
5642 mono_mb_emit_stloc (mb, 0);
5643 mono_mb_emit_ldloc (mb, 0);
5644 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5646 /* allocate space for the native struct and store the address */
5647 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5648 mono_mb_emit_byte (mb, CEE_PREFIX1);
5649 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5650 mono_mb_emit_stloc (mb, conv_arg);
5653 /* Need to store the original buffer so we can free it later */
5654 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5656 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5659 /* set the src_ptr */
5660 mono_mb_emit_ldloc (mb, 0);
5661 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5662 mono_mb_emit_stloc (mb, 0);
5665 mono_mb_emit_ldloc (mb, conv_arg);
5666 mono_mb_emit_stloc (mb, 1);
5668 /* emit valuetype conversion code */
5669 emit_struct_conv (mb, klass, FALSE);
5671 mono_mb_patch_branch (mb, pos);
5675 case MARSHAL_ACTION_CONV_OUT:
5676 if (klass == mono_defaults.stringbuilder_class) {
5678 MonoMarshalNative encoding;
5679 MonoMarshalConv conv;
5681 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5682 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5684 g_assert (encoding != -1);
5687 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5691 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_ldloc (mb, conv_arg);
5695 case MONO_NATIVE_LPWSTR:
5696 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5698 case MONO_NATIVE_LPSTR:
5699 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5702 g_assert_not_reached ();
5705 mono_mb_emit_byte (mb, CEE_STIND_REF);
5707 mono_mb_emit_ldarg (mb, argnum);
5708 mono_mb_emit_ldloc (mb, conv_arg);
5710 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5714 mono_mb_emit_ldloc (mb, conv_arg);
5715 mono_mb_emit_icall (mb, mono_marshal_free);
5720 if (klass->delegate) {
5722 mono_mb_emit_ldarg (mb, argnum);
5723 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5724 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5725 mono_mb_emit_ldloc (mb, conv_arg);
5726 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5727 mono_mb_emit_byte (mb, CEE_STIND_REF);
5732 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5733 /* allocate a new object */
5734 mono_mb_emit_ldarg (mb, argnum);
5735 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5736 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5737 mono_mb_emit_byte (mb, CEE_STIND_REF);
5740 /* dst = *argument */
5741 mono_mb_emit_ldarg (mb, argnum);
5744 mono_mb_emit_byte (mb, CEE_LDIND_I);
5746 mono_mb_emit_stloc (mb, 1);
5748 mono_mb_emit_ldloc (mb, 1);
5749 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5751 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5752 mono_mb_emit_ldloc (mb, 1);
5753 mono_mb_emit_icon (mb, sizeof (MonoObject));
5754 mono_mb_emit_byte (mb, CEE_ADD);
5755 mono_mb_emit_stloc (mb, 1);
5757 /* src = tmp_locals [i] */
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 mono_mb_emit_stloc (mb, 0);
5761 /* emit valuetype conversion code */
5762 emit_struct_conv (mb, klass, TRUE);
5764 /* Free the structure returned by the native code */
5765 emit_struct_free (mb, klass, conv_arg);
5767 if (m->orig_conv_args [argnum]) {
5769 * If the native function changed the pointer, then free
5770 * the original structure plus the new pointer.
5772 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5773 mono_mb_emit_ldloc (mb, conv_arg);
5774 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5776 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5777 g_assert (m->orig_conv_args [argnum]);
5779 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5782 mono_mb_emit_ldloc (mb, conv_arg);
5783 mono_mb_emit_icall (mb, mono_marshal_free);
5785 mono_mb_patch_branch (mb, pos2);
5789 /* Free the original structure passed to native code */
5790 emit_struct_free (mb, klass, conv_arg);
5792 mono_mb_patch_branch (mb, pos);
5795 case MARSHAL_ACTION_PUSH:
5797 mono_mb_emit_ldloc_addr (mb, conv_arg);
5799 mono_mb_emit_ldloc (mb, conv_arg);
5802 case MARSHAL_ACTION_CONV_RESULT:
5803 if (klass->delegate) {
5804 g_assert (!t->byref);
5805 mono_mb_emit_stloc (mb, 0);
5806 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5807 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5808 mono_mb_emit_ldloc (mb, 0);
5809 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5810 mono_mb_emit_stloc (mb, 3);
5813 mono_mb_emit_stloc (mb, 0);
5815 /* Make a copy since emit_conv modifies local 0 */
5816 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5817 mono_mb_emit_ldloc (mb, 0);
5818 mono_mb_emit_stloc (mb, loc);
5820 mono_mb_emit_byte (mb, CEE_LDNULL);
5821 mono_mb_emit_stloc (mb, 3);
5823 mono_mb_emit_ldloc (mb, 0);
5824 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5826 /* allocate result object */
5828 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5829 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5830 mono_mb_emit_stloc (mb, 3);
5834 mono_mb_emit_ldloc (mb, 3);
5835 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5836 mono_mb_emit_stloc (mb, 1);
5838 /* emit conversion code */
5839 emit_struct_conv (mb, klass, TRUE);
5841 emit_struct_free (mb, klass, loc);
5843 /* Free the pointer allocated by unmanaged code */
5844 mono_mb_emit_ldloc (mb, loc);
5845 mono_mb_emit_icall (mb, mono_marshal_free);
5846 mono_mb_patch_branch (mb, pos);
5850 case MARSHAL_ACTION_MANAGED_CONV_IN:
5851 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5853 if (klass->delegate) {
5854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5855 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5856 mono_mb_emit_ldarg (mb, argnum);
5858 mono_mb_emit_byte (mb, CEE_LDIND_I);
5859 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5860 mono_mb_emit_stloc (mb, conv_arg);
5864 if (klass == mono_defaults.stringbuilder_class) {
5865 MonoMarshalNative encoding;
5867 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5870 g_assert (encoding == MONO_NATIVE_LPSTR);
5872 g_assert (!t->byref);
5873 g_assert (encoding != -1);
5875 mono_mb_emit_ldarg (mb, argnum);
5876 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5877 mono_mb_emit_stloc (mb, conv_arg);
5881 /* The class can not have an automatic layout */
5882 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5883 mono_mb_emit_auto_layout_exception (mb, klass);
5887 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5888 mono_mb_emit_byte (mb, CEE_LDNULL);
5889 mono_mb_emit_stloc (mb, conv_arg);
5894 mono_mb_emit_ldarg (mb, argnum);
5898 /* Check for NULL and raise an exception */
5899 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5901 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5903 mono_mb_patch_branch (mb, pos2);
5904 mono_mb_emit_ldarg (mb, argnum);
5905 mono_mb_emit_byte (mb, CEE_LDIND_I);
5908 mono_mb_emit_stloc (mb, 0);
5910 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5911 mono_mb_emit_stloc (mb, conv_arg);
5913 mono_mb_emit_ldloc (mb, 0);
5914 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5916 /* Create and set dst */
5917 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5918 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5919 mono_mb_emit_stloc (mb, conv_arg);
5920 mono_mb_emit_ldloc (mb, conv_arg);
5921 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5922 mono_mb_emit_stloc (mb, 1);
5924 /* emit valuetype conversion code */
5925 emit_struct_conv (mb, klass, TRUE);
5927 mono_mb_patch_branch (mb, pos);
5930 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5931 if (klass->delegate) {
5934 mono_mb_emit_ldarg (mb, argnum);
5935 mono_mb_emit_ldloc (mb, conv_arg);
5936 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5937 mono_mb_emit_byte (mb, stind_op);
5943 /* Check for null */
5944 mono_mb_emit_ldloc (mb, conv_arg);
5945 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5946 mono_mb_emit_ldarg (mb, argnum);
5947 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5948 mono_mb_emit_byte (mb, CEE_STIND_REF);
5949 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5951 mono_mb_patch_branch (mb, pos);
5954 mono_mb_emit_ldloc (mb, conv_arg);
5955 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5956 mono_mb_emit_stloc (mb, 0);
5958 /* Allocate and set dest */
5959 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5960 mono_mb_emit_byte (mb, CEE_CONV_I);
5961 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5962 mono_mb_emit_stloc (mb, 1);
5964 /* Update argument pointer */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_ldloc (mb, 1);
5967 mono_mb_emit_byte (mb, CEE_STIND_I);
5969 /* emit valuetype conversion code */
5970 emit_struct_conv (mb, klass, FALSE);
5972 mono_mb_patch_branch (mb, pos2);
5973 } else if (klass == mono_defaults.stringbuilder_class) {
5974 // FIXME: What to do here ?
5976 /* byval [Out] marshalling */
5978 /* FIXME: Handle null */
5981 mono_mb_emit_ldloc (mb, conv_arg);
5982 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5983 mono_mb_emit_stloc (mb, 0);
5986 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_stloc (mb, 1);
5989 /* emit valuetype conversion code */
5990 emit_struct_conv (mb, klass, FALSE);
5994 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5995 if (klass->delegate) {
5996 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5997 mono_mb_emit_stloc (mb, 3);
6001 /* The class can not have an automatic layout */
6002 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6003 mono_mb_emit_auto_layout_exception (mb, klass);
6007 mono_mb_emit_stloc (mb, 0);
6008 /* Check for null */
6009 mono_mb_emit_ldloc (mb, 0);
6010 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6011 mono_mb_emit_byte (mb, CEE_LDNULL);
6012 mono_mb_emit_stloc (mb, 3);
6013 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6015 mono_mb_patch_branch (mb, pos);
6018 mono_mb_emit_ldloc (mb, 0);
6019 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6020 mono_mb_emit_stloc (mb, 0);
6022 /* Allocate and set dest */
6023 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6024 mono_mb_emit_byte (mb, CEE_CONV_I);
6025 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6026 mono_mb_emit_byte (mb, CEE_DUP);
6027 mono_mb_emit_stloc (mb, 1);
6028 mono_mb_emit_stloc (mb, 3);
6030 emit_struct_conv (mb, klass, FALSE);
6032 mono_mb_patch_branch (mb, pos2);
6036 g_assert_not_reached ();
6047 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6048 MonoMarshalSpec *spec,
6049 int conv_arg, MonoType **conv_arg_type,
6050 MarshalAction action)
6052 MonoMethodBuilder *mb = m->mb;
6053 static MonoMethod *get_object_for_native_variant = NULL;
6054 static MonoMethod *get_native_variant_for_object = NULL;
6056 if (!get_object_for_native_variant)
6057 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6058 g_assert (get_object_for_native_variant);
6060 if (!get_native_variant_for_object)
6061 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6062 g_assert (get_native_variant_for_object);
6065 case MARSHAL_ACTION_CONV_IN: {
6066 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6069 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6071 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6073 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6076 mono_mb_emit_ldarg (mb, argnum);
6078 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6079 mono_mb_emit_ldloc_addr (mb, conv_arg);
6080 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6084 case MARSHAL_ACTION_CONV_OUT: {
6085 static MonoMethod *variant_clear = NULL;
6088 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6089 g_assert (variant_clear);
6092 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6093 mono_mb_emit_ldarg (mb, argnum);
6094 mono_mb_emit_ldloc_addr (mb, conv_arg);
6095 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6096 mono_mb_emit_byte (mb, CEE_STIND_REF);
6099 mono_mb_emit_ldloc_addr (mb, conv_arg);
6100 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6104 case MARSHAL_ACTION_PUSH:
6106 mono_mb_emit_ldloc_addr (mb, conv_arg);
6108 mono_mb_emit_ldloc (mb, conv_arg);
6111 case MARSHAL_ACTION_CONV_RESULT: {
6112 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6113 mono_mb_emit_exception_marshal_directive (mb, msg);
6117 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6118 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6121 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6123 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6125 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6129 mono_mb_emit_ldarg (mb, argnum);
6131 mono_mb_emit_ldarg_addr (mb, argnum);
6132 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6133 mono_mb_emit_stloc (mb, conv_arg);
6137 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6138 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6139 mono_mb_emit_ldloc (mb, conv_arg);
6140 mono_mb_emit_ldarg (mb, argnum);
6141 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6146 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6147 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6153 g_assert_not_reached ();
6159 #endif /* DISABLE_COM */
6160 #endif /* DISABLE_JIT */
6163 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6165 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6166 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6168 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6170 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6182 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6183 MonoMarshalSpec *spec,
6184 int conv_arg, MonoType **conv_arg_type,
6185 MarshalAction action)
6189 case MARSHAL_ACTION_CONV_IN:
6190 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6192 case MARSHAL_ACTION_MANAGED_CONV_IN:
6193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6197 MonoMethodBuilder *mb = m->mb;
6198 MonoClass *klass = mono_class_from_mono_type (t);
6199 gboolean need_convert, need_free;
6200 MonoMarshalNative encoding;
6202 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6205 case MARSHAL_ACTION_CONV_IN:
6206 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6207 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6209 if (klass->element_class->blittable) {
6210 mono_mb_emit_ldarg (mb, argnum);
6212 mono_mb_emit_byte (mb, CEE_LDIND_I);
6213 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6214 mono_mb_emit_stloc (mb, conv_arg);
6217 guint32 label1, label2, label3;
6218 int index_var, src_var, dest_ptr, esize;
6219 MonoMarshalConv conv;
6220 gboolean is_string = FALSE;
6222 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6224 eklass = klass->element_class;
6226 if (eklass == mono_defaults.string_class) {
6228 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6230 else if (eklass == mono_defaults.stringbuilder_class) {
6232 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6235 conv = MONO_MARSHAL_CONV_INVALID;
6237 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6238 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6239 mono_mb_emit_exception_marshal_directive (mb, msg);
6243 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6244 mono_mb_emit_ldarg (mb, argnum);
6246 mono_mb_emit_byte (mb, CEE_LDIND_I);
6247 mono_mb_emit_stloc (mb, src_var);
6250 mono_mb_emit_ldloc (mb, src_var);
6251 mono_mb_emit_stloc (mb, conv_arg);
6252 mono_mb_emit_ldloc (mb, src_var);
6253 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6256 esize = sizeof (gpointer);
6257 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6258 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6260 esize = mono_class_native_size (eklass, NULL);
6262 /* allocate space for the native struct and store the address */
6263 mono_mb_emit_icon (mb, esize);
6264 mono_mb_emit_ldloc (mb, src_var);
6265 mono_mb_emit_byte (mb, CEE_LDLEN);
6267 if (eklass == mono_defaults.string_class) {
6268 /* Make the array bigger for the terminating null */
6269 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6270 mono_mb_emit_byte (mb, CEE_ADD);
6272 mono_mb_emit_byte (mb, CEE_MUL);
6273 mono_mb_emit_byte (mb, CEE_PREFIX1);
6274 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6275 mono_mb_emit_stloc (mb, conv_arg);
6277 mono_mb_emit_ldloc (mb, conv_arg);
6278 mono_mb_emit_stloc (mb, dest_ptr);
6280 /* Emit marshalling loop */
6281 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6283 mono_mb_emit_stloc (mb, index_var);
6284 label2 = mono_mb_get_label (mb);
6285 mono_mb_emit_ldloc (mb, index_var);
6286 mono_mb_emit_ldloc (mb, src_var);
6287 mono_mb_emit_byte (mb, CEE_LDLEN);
6288 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6290 /* Emit marshalling code */
6294 mono_mb_emit_ldloc (mb, dest_ptr);
6295 mono_mb_emit_ldloc (mb, src_var);
6296 mono_mb_emit_ldloc (mb, index_var);
6297 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6298 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6299 mono_mb_emit_byte (mb, stind_op);
6301 /* set the src_ptr */
6302 mono_mb_emit_ldloc (mb, src_var);
6303 mono_mb_emit_ldloc (mb, index_var);
6304 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6305 mono_mb_emit_stloc (mb, 0);
6308 mono_mb_emit_ldloc (mb, dest_ptr);
6309 mono_mb_emit_stloc (mb, 1);
6311 /* emit valuetype conversion code */
6312 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6315 mono_mb_emit_add_to_local (mb, index_var, 1);
6316 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6318 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6320 mono_mb_patch_branch (mb, label3);
6322 if (eklass == mono_defaults.string_class) {
6323 /* Null terminate */
6324 mono_mb_emit_ldloc (mb, dest_ptr);
6325 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6326 mono_mb_emit_byte (mb, CEE_STIND_REF);
6329 mono_mb_patch_branch (mb, label1);
6334 case MARSHAL_ACTION_CONV_OUT:
6335 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6336 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);
6337 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6340 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6341 int param_num = spec->data.array_data.param_num;
6342 MonoType *param_type;
6344 param_type = m->sig->params [param_num];
6346 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6347 char *msg = g_strdup ("Not implemented.");
6348 mono_mb_emit_exception_marshal_directive (mb, msg);
6353 mono_mb_emit_ldarg (mb, argnum);
6355 /* Create the managed array */
6356 mono_mb_emit_ldarg (mb, param_num);
6357 if (m->sig->params [param_num]->byref)
6358 // FIXME: Support other types
6359 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6360 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6361 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6362 /* Store into argument */
6363 mono_mb_emit_byte (mb, CEE_STIND_REF);
6367 if (need_convert || need_free) {
6368 /* FIXME: Optimize blittable case */
6370 guint32 label1, label2, label3;
6371 int index_var, src_ptr, loc, esize;
6373 eklass = klass->element_class;
6374 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6375 esize = sizeof (gpointer);
6376 else if (eklass == mono_defaults.char_class)
6377 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6379 esize = mono_class_native_size (eklass, NULL);
6380 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6381 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6384 mono_mb_emit_ldarg (mb, argnum);
6386 mono_mb_emit_byte (mb, CEE_LDIND_I);
6387 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6389 mono_mb_emit_ldloc (mb, conv_arg);
6390 mono_mb_emit_stloc (mb, src_ptr);
6392 /* Emit marshalling loop */
6393 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6394 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6395 mono_mb_emit_stloc (mb, index_var);
6396 label2 = mono_mb_get_label (mb);
6397 mono_mb_emit_ldloc (mb, index_var);
6398 mono_mb_emit_ldarg (mb, argnum);
6400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6401 mono_mb_emit_byte (mb, CEE_LDLEN);
6402 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6404 /* Emit marshalling code */
6406 if (eklass == mono_defaults.stringbuilder_class) {
6407 gboolean need_free2;
6408 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6410 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6413 mono_mb_emit_ldarg (mb, argnum);
6415 mono_mb_emit_byte (mb, CEE_LDIND_I);
6416 mono_mb_emit_ldloc (mb, index_var);
6417 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6420 mono_mb_emit_ldloc (mb, src_ptr);
6421 mono_mb_emit_byte (mb, CEE_LDIND_I);
6423 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6427 mono_mb_emit_ldloc (mb, src_ptr);
6428 mono_mb_emit_byte (mb, CEE_LDIND_I);
6430 mono_mb_emit_icall (mb, mono_marshal_free);
6433 else if (eklass == mono_defaults.string_class) {
6436 mono_mb_emit_ldloc (mb, src_ptr);
6437 mono_mb_emit_byte (mb, CEE_LDIND_I);
6439 mono_mb_emit_icall (mb, mono_marshal_free);
6444 /* set the src_ptr */
6445 mono_mb_emit_ldloc (mb, src_ptr);
6446 mono_mb_emit_stloc (mb, 0);
6449 mono_mb_emit_ldarg (mb, argnum);
6451 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6452 mono_mb_emit_ldloc (mb, index_var);
6453 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6454 mono_mb_emit_stloc (mb, 1);
6456 /* emit valuetype conversion code */
6457 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6461 mono_mb_emit_ldloc (mb, src_ptr);
6462 mono_mb_emit_stloc (mb, loc);
6463 mono_mb_emit_ldloc (mb, loc);
6465 emit_struct_free (mb, eklass, loc);
6469 mono_mb_emit_add_to_local (mb, index_var, 1);
6470 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6472 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6474 mono_mb_patch_branch (mb, label1);
6475 mono_mb_patch_branch (mb, label3);
6478 if (klass->element_class->blittable) {
6479 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6481 mono_mb_emit_ldarg (mb, argnum);
6483 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6485 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6490 case MARSHAL_ACTION_PUSH:
6492 mono_mb_emit_ldloc_addr (mb, conv_arg);
6494 mono_mb_emit_ldloc (mb, conv_arg);
6497 case MARSHAL_ACTION_CONV_RESULT:
6498 /* fixme: we need conversions here */
6499 mono_mb_emit_stloc (mb, 3);
6502 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6504 guint32 label1, label2, label3;
6505 int index_var, src_ptr, esize, param_num, num_elem;
6506 MonoMarshalConv conv;
6507 gboolean is_string = FALSE;
6509 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6510 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6513 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6514 mono_mb_emit_exception_marshal_directive (mb, msg);
6518 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6519 mono_mb_emit_exception_marshal_directive (mb, msg);
6522 if (spec->native != MONO_NATIVE_LPARRAY) {
6523 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6524 mono_mb_emit_exception_marshal_directive (mb, msg);
6528 /* FIXME: t is from the method which is wrapped, not the delegate type */
6529 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6531 param_num = spec->data.array_data.param_num;
6532 num_elem = spec->data.array_data.num_elem;
6533 if (spec->data.array_data.elem_mult == 0)
6534 /* param_num is not specified */
6537 if (param_num == -1) {
6538 if (num_elem <= 0) {
6539 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6540 mono_mb_emit_exception_marshal_directive (mb, msg);
6545 /* FIXME: Optimize blittable case */
6547 eklass = klass->element_class;
6548 if (eklass == mono_defaults.string_class) {
6550 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6552 else if (eklass == mono_defaults.stringbuilder_class) {
6554 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6557 conv = MONO_MARSHAL_CONV_INVALID;
6559 mono_marshal_load_type_info (eklass);
6562 esize = sizeof (gpointer);
6564 esize = mono_class_native_size (eklass, NULL);
6565 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6567 mono_mb_emit_byte (mb, CEE_LDNULL);
6568 mono_mb_emit_stloc (mb, conv_arg);
6570 /* Check param index */
6571 if (param_num != -1) {
6572 if (param_num >= m->sig->param_count) {
6573 char *msg = g_strdup ("Array size control parameter index is out of range.");
6574 mono_mb_emit_exception_marshal_directive (mb, msg);
6577 switch (m->sig->params [param_num]->type) {
6590 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6591 mono_mb_emit_exception_marshal_directive (mb, msg);
6598 mono_mb_emit_ldarg (mb, argnum);
6599 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6601 mono_mb_emit_ldarg (mb, argnum);
6602 mono_mb_emit_stloc (mb, src_ptr);
6604 /* Create managed array */
6606 * The LPArray marshalling spec says that sometimes param_num starts
6607 * from 1, sometimes it starts from 0. But MS seems to allways start
6611 if (param_num == -1) {
6612 mono_mb_emit_icon (mb, num_elem);
6614 mono_mb_emit_ldarg (mb, param_num);
6616 mono_mb_emit_icon (mb, num_elem);
6617 mono_mb_emit_byte (mb, CEE_ADD);
6619 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6622 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6623 mono_mb_emit_stloc (mb, conv_arg);
6625 if (eklass->blittable) {
6626 mono_mb_emit_ldloc (mb, conv_arg);
6627 mono_mb_emit_byte (mb, CEE_CONV_I);
6628 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6629 mono_mb_emit_byte (mb, CEE_ADD);
6630 mono_mb_emit_ldarg (mb, argnum);
6631 mono_mb_emit_ldloc (mb, conv_arg);
6632 mono_mb_emit_byte (mb, CEE_LDLEN);
6633 mono_mb_emit_icon (mb, esize);
6634 mono_mb_emit_byte (mb, CEE_MUL);
6635 mono_mb_emit_byte (mb, CEE_PREFIX1);
6636 mono_mb_emit_byte (mb, CEE_CPBLK);
6640 /* Emit marshalling loop */
6641 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6642 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6643 mono_mb_emit_stloc (mb, index_var);
6644 label2 = mono_mb_get_label (mb);
6645 mono_mb_emit_ldloc (mb, index_var);
6646 mono_mb_emit_ldloc (mb, conv_arg);
6647 mono_mb_emit_byte (mb, CEE_LDLEN);
6648 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6650 /* Emit marshalling code */
6652 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6655 mono_mb_emit_ldloc (mb, index_var);
6657 mono_mb_emit_ldloc (mb, src_ptr);
6658 mono_mb_emit_byte (mb, CEE_LDIND_I);
6660 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6661 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6664 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6665 mono_mb_emit_exception_marshal_directive (mb, msg);
6669 mono_mb_emit_add_to_local (mb, index_var, 1);
6670 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6672 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6674 mono_mb_patch_branch (mb, label1);
6675 mono_mb_patch_branch (mb, label3);
6679 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6681 guint32 label1, label2, label3;
6682 int index_var, dest_ptr, esize, param_num, num_elem;
6683 MonoMarshalConv conv;
6684 gboolean is_string = FALSE;
6687 /* Already handled in CONV_IN */
6690 /* These are already checked in CONV_IN */
6691 g_assert (!t->byref);
6692 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6693 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6695 param_num = spec->data.array_data.param_num;
6696 num_elem = spec->data.array_data.num_elem;
6698 if (spec->data.array_data.elem_mult == 0)
6699 /* param_num is not specified */
6702 if (param_num == -1) {
6703 if (num_elem <= 0) {
6704 g_assert_not_reached ();
6708 /* FIXME: Optimize blittable case */
6710 eklass = klass->element_class;
6711 if (eklass == mono_defaults.string_class) {
6713 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6715 else if (eklass == mono_defaults.stringbuilder_class) {
6717 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6720 conv = MONO_MARSHAL_CONV_INVALID;
6722 mono_marshal_load_type_info (eklass);
6725 esize = sizeof (gpointer);
6727 esize = mono_class_native_size (eklass, NULL);
6729 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6735 mono_mb_emit_ldarg (mb, argnum);
6736 mono_mb_emit_stloc (mb, dest_ptr);
6738 if (eklass->blittable) {
6740 mono_mb_emit_ldarg (mb, argnum);
6742 mono_mb_emit_ldloc (mb, conv_arg);
6743 mono_mb_emit_byte (mb, CEE_CONV_I);
6744 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6745 mono_mb_emit_byte (mb, CEE_ADD);
6747 mono_mb_emit_ldloc (mb, conv_arg);
6748 mono_mb_emit_byte (mb, CEE_LDLEN);
6749 mono_mb_emit_icon (mb, esize);
6750 mono_mb_emit_byte (mb, CEE_MUL);
6751 mono_mb_emit_byte (mb, CEE_PREFIX1);
6752 mono_mb_emit_byte (mb, CEE_CPBLK);
6756 /* Emit marshalling loop */
6757 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6758 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6759 mono_mb_emit_stloc (mb, index_var);
6760 label2 = mono_mb_get_label (mb);
6761 mono_mb_emit_ldloc (mb, index_var);
6762 mono_mb_emit_ldloc (mb, conv_arg);
6763 mono_mb_emit_byte (mb, CEE_LDLEN);
6764 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6766 /* Emit marshalling code */
6769 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6772 mono_mb_emit_ldloc (mb, dest_ptr);
6775 mono_mb_emit_ldloc (mb, conv_arg);
6776 mono_mb_emit_ldloc (mb, index_var);
6778 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6780 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6781 mono_mb_emit_byte (mb, stind_op);
6784 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6785 mono_mb_emit_exception_marshal_directive (mb, msg);
6789 mono_mb_emit_add_to_local (mb, index_var, 1);
6790 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6792 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6794 mono_mb_patch_branch (mb, label1);
6795 mono_mb_patch_branch (mb, label3);
6799 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6801 guint32 label1, label2, label3;
6802 int index_var, src, dest, esize;
6803 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6804 gboolean is_string = FALSE;
6806 g_assert (!t->byref);
6808 eklass = klass->element_class;
6810 mono_marshal_load_type_info (eklass);
6812 if (eklass == mono_defaults.string_class) {
6814 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6817 g_assert_not_reached ();
6821 esize = sizeof (gpointer);
6822 else if (eklass == mono_defaults.char_class)
6823 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6825 esize = mono_class_native_size (eklass, NULL);
6827 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6828 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6830 mono_mb_emit_stloc (mb, src);
6831 mono_mb_emit_ldloc (mb, src);
6832 mono_mb_emit_stloc (mb, 3);
6834 /* Check for null */
6835 mono_mb_emit_ldloc (mb, src);
6836 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6838 /* Allocate native array */
6839 mono_mb_emit_icon (mb, esize);
6840 mono_mb_emit_ldloc (mb, src);
6841 mono_mb_emit_byte (mb, CEE_LDLEN);
6843 if (eklass == mono_defaults.string_class) {
6844 /* Make the array bigger for the terminating null */
6845 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6846 mono_mb_emit_byte (mb, CEE_ADD);
6848 mono_mb_emit_byte (mb, CEE_MUL);
6849 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6850 mono_mb_emit_stloc (mb, dest);
6851 mono_mb_emit_ldloc (mb, dest);
6852 mono_mb_emit_stloc (mb, 3);
6854 /* Emit marshalling loop */
6855 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6856 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6857 mono_mb_emit_stloc (mb, index_var);
6858 label2 = mono_mb_get_label (mb);
6859 mono_mb_emit_ldloc (mb, index_var);
6860 mono_mb_emit_ldloc (mb, src);
6861 mono_mb_emit_byte (mb, CEE_LDLEN);
6862 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6864 /* Emit marshalling code */
6867 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6870 mono_mb_emit_ldloc (mb, dest);
6873 mono_mb_emit_ldloc (mb, src);
6874 mono_mb_emit_ldloc (mb, index_var);
6876 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6878 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6879 mono_mb_emit_byte (mb, stind_op);
6882 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6883 mono_mb_emit_exception_marshal_directive (mb, msg);
6887 mono_mb_emit_add_to_local (mb, index_var, 1);
6888 mono_mb_emit_add_to_local (mb, dest, esize);
6890 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6892 mono_mb_patch_branch (mb, label3);
6893 mono_mb_patch_branch (mb, label1);
6897 g_assert_not_reached ();
6904 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6907 return &mono_defaults.int32_class->byval_arg;
6909 switch (spec->native) {
6910 case MONO_NATIVE_I1:
6911 case MONO_NATIVE_U1:
6912 return &mono_defaults.byte_class->byval_arg;
6913 case MONO_NATIVE_VARIANTBOOL:
6914 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6915 return &mono_defaults.int16_class->byval_arg;
6916 case MONO_NATIVE_BOOLEAN:
6917 return &mono_defaults.int32_class->byval_arg;
6919 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6920 return &mono_defaults.int32_class->byval_arg;
6926 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6928 MonoClass* conv_arg_class = mono_defaults.int32_class;
6930 switch (spec->native) {
6931 case MONO_NATIVE_I1:
6932 case MONO_NATIVE_U1:
6933 conv_arg_class = mono_defaults.byte_class;
6934 if (ldop) *ldop = CEE_LDIND_I1;
6936 case MONO_NATIVE_VARIANTBOOL:
6937 conv_arg_class = mono_defaults.int16_class;
6938 if (ldop) *ldop = CEE_LDIND_I2;
6940 case MONO_NATIVE_BOOLEAN:
6943 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6946 return conv_arg_class;
6950 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6951 MonoMarshalSpec *spec,
6952 int conv_arg, MonoType **conv_arg_type,
6953 MarshalAction action)
6957 case MARSHAL_ACTION_CONV_IN:
6959 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6961 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6964 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6965 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6967 *conv_arg_type = &conv_arg_class->this_arg;
6969 *conv_arg_type = &conv_arg_class->byval_arg;
6975 MonoMethodBuilder *mb = m->mb;
6978 case MARSHAL_ACTION_CONV_IN: {
6979 MonoType *local_type;
6981 guint8 ldc_op = CEE_LDC_I4_1;
6983 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6985 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6987 *conv_arg_type = local_type;
6988 conv_arg = mono_mb_add_local (mb, local_type);
6990 mono_mb_emit_ldarg (mb, argnum);
6992 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6993 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6994 mono_mb_emit_byte (mb, ldc_op);
6995 mono_mb_emit_stloc (mb, conv_arg);
6996 mono_mb_patch_branch (mb, label_false);
7001 case MARSHAL_ACTION_CONV_OUT:
7003 int label_false, label_end;
7007 mono_mb_emit_ldarg (mb, argnum);
7008 mono_mb_emit_ldloc (mb, conv_arg);
7010 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7011 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7013 label_end = mono_mb_emit_branch (mb, CEE_BR);
7014 mono_mb_patch_branch (mb, label_false);
7015 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7016 mono_mb_patch_branch (mb, label_end);
7018 mono_mb_emit_byte (mb, CEE_STIND_I1);
7022 case MARSHAL_ACTION_PUSH:
7024 mono_mb_emit_ldloc_addr (mb, conv_arg);
7026 mono_mb_emit_ldloc (mb, conv_arg);
7028 mono_mb_emit_ldarg (mb, argnum);
7031 case MARSHAL_ACTION_CONV_RESULT:
7032 /* maybe we need to make sure that it fits within 8 bits */
7033 mono_mb_emit_stloc (mb, 3);
7036 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7037 MonoClass* conv_arg_class = mono_defaults.int32_class;
7038 guint8 ldop = CEE_LDIND_I4;
7039 int label_null, label_false;
7041 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7042 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7045 *conv_arg_type = &conv_arg_class->this_arg;
7047 *conv_arg_type = &conv_arg_class->byval_arg;
7050 mono_mb_emit_ldarg (mb, argnum);
7054 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7055 mono_mb_emit_ldarg (mb, argnum);
7056 mono_mb_emit_byte (mb, ldop);
7060 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7061 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7062 mono_mb_emit_stloc (mb, conv_arg);
7063 mono_mb_patch_branch (mb, label_false);
7066 mono_mb_patch_branch (mb, label_null);
7070 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7071 guint8 stop = CEE_STIND_I4;
7072 guint8 ldc_op = CEE_LDC_I4_1;
7073 int label_null,label_false, label_end;;
7078 switch (spec->native) {
7079 case MONO_NATIVE_I1:
7080 case MONO_NATIVE_U1:
7081 stop = CEE_STIND_I1;
7083 case MONO_NATIVE_VARIANTBOOL:
7084 stop = CEE_STIND_I2;
7085 ldc_op = CEE_LDC_I4_M1;
7093 mono_mb_emit_ldarg (mb, argnum);
7094 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7096 mono_mb_emit_ldarg (mb, argnum);
7097 mono_mb_emit_ldloc (mb, conv_arg);
7099 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7100 mono_mb_emit_byte (mb, ldc_op);
7101 label_end = mono_mb_emit_branch (mb, CEE_BR);
7103 mono_mb_patch_branch (mb, label_false);
7104 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7105 mono_mb_patch_branch (mb, label_end);
7107 mono_mb_emit_byte (mb, stop);
7108 mono_mb_patch_branch (mb, label_null);
7113 g_assert_not_reached ();
7120 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7121 MonoMarshalSpec *spec, int conv_arg,
7122 MonoType **conv_arg_type, MarshalAction action)
7125 MonoMethodBuilder *mb = m->mb;
7128 case MARSHAL_ACTION_CONV_IN:
7129 /* MS seems to allow this in some cases, ie. bxc #158 */
7131 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7132 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7133 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7138 case MARSHAL_ACTION_PUSH:
7139 mono_mb_emit_ldarg (mb, argnum);
7142 case MARSHAL_ACTION_CONV_RESULT:
7143 /* no conversions necessary */
7144 mono_mb_emit_stloc (mb, 3);
7155 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7156 MonoMarshalSpec *spec, int conv_arg,
7157 MonoType **conv_arg_type, MarshalAction action)
7160 MonoMethodBuilder *mb = m->mb;
7163 case MARSHAL_ACTION_PUSH:
7164 /* fixme: dont know how to marshal that. We cant simply
7165 * convert it to a one byte UTF8 character, because an
7166 * unicode character may need more that one byte in UTF8 */
7167 mono_mb_emit_ldarg (mb, argnum);
7170 case MARSHAL_ACTION_CONV_RESULT:
7171 /* fixme: we need conversions here */
7172 mono_mb_emit_stloc (mb, 3);
7183 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7184 MonoMarshalSpec *spec, int conv_arg,
7185 MonoType **conv_arg_type, MarshalAction action)
7188 MonoMethodBuilder *mb = m->mb;
7191 case MARSHAL_ACTION_PUSH:
7192 mono_mb_emit_ldarg (mb, argnum);
7195 case MARSHAL_ACTION_CONV_RESULT:
7196 /* no conversions necessary */
7197 mono_mb_emit_stloc (mb, 3);
7208 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7209 MonoMarshalSpec *spec, int conv_arg,
7210 MonoType **conv_arg_type, MarshalAction action)
7212 /* Ensure that we have marshalling info for this param */
7213 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7215 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7216 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7218 if (spec && spec->native == MONO_NATIVE_ASANY)
7219 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7222 case MONO_TYPE_VALUETYPE:
7223 if (t->data.klass == mono_defaults.handleref_class)
7224 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7226 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7227 case MONO_TYPE_STRING:
7228 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7229 case MONO_TYPE_CLASS:
7230 case MONO_TYPE_OBJECT:
7231 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7232 if (spec && spec->native == MONO_NATIVE_STRUCT)
7233 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7236 #if !defined(DISABLE_COM)
7237 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7238 spec->native == MONO_NATIVE_IDISPATCH ||
7239 spec->native == MONO_NATIVE_INTERFACE))
7240 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7241 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7242 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7243 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7244 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7247 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7248 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7249 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7252 case MONO_TYPE_ARRAY:
7253 case MONO_TYPE_SZARRAY:
7254 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7255 case MONO_TYPE_BOOLEAN:
7256 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7258 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7259 case MONO_TYPE_CHAR:
7260 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 case MONO_TYPE_FNPTR:
7274 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 case MONO_TYPE_GENERICINST:
7276 if (mono_type_generic_inst_is_valuetype (t))
7277 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7287 * mono_marshal_emit_native_wrapper:
7288 * @image: the image to use for looking up custom marshallers
7289 * @sig: The signature of the native function
7290 * @piinfo: Marshalling information
7291 * @mspecs: Marshalling information
7292 * @aot: whenever the created method will be compiled by the AOT compiler
7293 * @method: if non-NULL, the pinvoke method to call
7294 * @check_exceptions: Whenever to check for pending exceptions after the native call
7295 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7297 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7300 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)
7302 EmitMarshalContext m;
7303 MonoMethodSignature *csig;
7305 int i, argnum, *tmp_locals;
7306 int type, param_shift = 0;
7307 static MonoMethodSignature *get_last_error_sig = NULL;
7308 int coop_gc_stack_dummy, coop_gc_var;
7310 memset (&m, 0, sizeof (m));
7315 /* we copy the signature, so that we can set pinvoke to 0 */
7317 /* The function address is passed as the first argument */
7318 g_assert (!sig->hasthis);
7321 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7329 /* we allocate local for use with emit_struct_conv() */
7330 /* allocate local 0 (pointer) src_ptr */
7331 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7332 /* allocate local 1 (pointer) dst_ptr */
7333 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7334 /* allocate local 2 (boolean) delete_old */
7335 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7337 /* delete_old = FALSE */
7338 mono_mb_emit_icon (mb, 0);
7339 mono_mb_emit_stloc (mb, 2);
7341 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7342 /* allocate local 3 to store the return value */
7343 mono_mb_add_local (mb, sig->ret);
7346 if (mono_threads_is_coop_enabled ()) {
7347 /* local 4, dummy local used to get a stack address for suspend funcs */
7348 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7349 /* local 5, the local to be used when calling the suspend funcs */
7350 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7354 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7356 * ret = method (...);
7358 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7365 if (MONO_TYPE_ISSTRUCT (sig->ret))
7366 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7368 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7369 /* Return type custom marshaling */
7371 * Since we can't determine the return type of the unmanaged function,
7372 * we assume it returns a pointer, and pass that pointer to
7373 * MarshalNativeToManaged.
7375 csig->ret = &mono_defaults.int_class->byval_arg;
7378 /* we first do all conversions */
7379 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7380 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7382 for (i = 0; i < sig->param_count; i ++) {
7383 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7386 // In coop mode need to register blocking state during native call
7387 if (mono_threads_is_coop_enabled ()) {
7388 // Perform an extra, early lookup of the function address, so any exceptions
7389 // potentially resulting from the lookup occur before entering blocking mode.
7390 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7392 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7393 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7396 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7397 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7398 mono_mb_emit_stloc (mb, coop_gc_var);
7401 /* push all arguments */
7404 mono_mb_emit_byte (mb, CEE_LDARG_0);
7406 for (i = 0; i < sig->param_count; i++) {
7407 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7410 /* call the native method */
7412 mono_mb_emit_byte (mb, CEE_LDARG_0);
7413 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7414 mono_mb_emit_byte (mb, CEE_LDIND_I);
7415 mono_mb_emit_calli (mb, csig);
7416 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7418 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7420 g_assert_not_reached ();
7424 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7425 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7426 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7427 mono_mb_emit_calli (mb, csig);
7429 mono_mb_emit_native_call (mb, csig, func);
7433 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7434 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7435 mono_class_init (klass);
7436 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7437 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7439 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7440 mono_mb_emit_stloc (mb, m.vtaddr_var);
7444 /* Unblock before converting the result, since that can involve calls into the runtime */
7445 if (mono_threads_is_coop_enabled ()) {
7446 mono_mb_emit_ldloc (mb, coop_gc_var);
7447 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7448 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7451 /* Set LastError if needed */
7452 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7453 if (!get_last_error_sig) {
7454 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7455 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7456 get_last_error_sig->pinvoke = 1;
7461 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7462 * clobber its value.
7464 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7465 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7467 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7471 /* convert the result */
7472 if (!sig->ret->byref) {
7473 MonoMarshalSpec *spec = mspecs [0];
7474 type = sig->ret->type;
7476 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7477 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7481 case MONO_TYPE_VOID:
7483 case MONO_TYPE_VALUETYPE:
7484 klass = sig->ret->data.klass;
7485 if (klass->enumtype) {
7486 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7489 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7503 case MONO_TYPE_FNPTR:
7504 case MONO_TYPE_STRING:
7505 case MONO_TYPE_CLASS:
7506 case MONO_TYPE_OBJECT:
7507 case MONO_TYPE_BOOLEAN:
7508 case MONO_TYPE_ARRAY:
7509 case MONO_TYPE_SZARRAY:
7510 case MONO_TYPE_CHAR:
7512 case MONO_TYPE_GENERICINST:
7513 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7515 case MONO_TYPE_TYPEDBYREF:
7517 g_warning ("return type 0x%02x unknown", sig->ret->type);
7518 g_assert_not_reached ();
7522 mono_mb_emit_stloc (mb, 3);
7526 * Need to call this after converting the result since MONO_VTADDR needs
7527 * to be adjacent to the call instruction.
7529 if (check_exceptions)
7530 emit_thread_interrupt_checkpoint (mb);
7532 /* we need to convert byref arguments back and free string arrays */
7533 for (i = 0; i < sig->param_count; i++) {
7534 MonoType *t = sig->params [i];
7535 MonoMarshalSpec *spec = mspecs [i + 1];
7537 argnum = i + param_shift;
7539 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7540 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7545 case MONO_TYPE_STRING:
7546 case MONO_TYPE_VALUETYPE:
7547 case MONO_TYPE_CLASS:
7548 case MONO_TYPE_OBJECT:
7549 case MONO_TYPE_SZARRAY:
7550 case MONO_TYPE_BOOLEAN:
7551 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7558 if (!MONO_TYPE_IS_VOID(sig->ret))
7559 mono_mb_emit_ldloc (mb, 3);
7561 mono_mb_emit_byte (mb, CEE_RET);
7563 #endif /* DISABLE_JIT */
7566 * mono_marshal_get_native_wrapper:
7567 * @method: The MonoMethod to wrap.
7568 * @check_exceptions: Whenever to check for pending exceptions
7570 * generates IL code for the pinvoke wrapper (the generated method
7571 * calls the unmanaged code in piinfo->addr)
7572 * The wrapper info for the wrapper is a WrapperInfo structure.
7575 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7577 MonoMethodSignature *sig, *csig;
7578 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7579 MonoMethodBuilder *mb;
7580 MonoMarshalSpec **mspecs;
7583 gboolean pinvoke = FALSE;
7586 const char *exc_class = "MissingMethodException";
7587 const char *exc_arg = NULL;
7590 g_assert (method != NULL);
7591 g_assert (mono_method_signature (method)->pinvoke);
7593 GHashTable **cache_ptr;
7596 if (check_exceptions)
7597 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7599 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7601 if (check_exceptions)
7602 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7604 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7607 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7609 if ((res = mono_marshal_find_in_cache (cache, method)))
7612 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7613 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7617 return mono_cominterop_get_native_wrapper (method);
7619 g_assert_not_reached ();
7623 sig = mono_method_signature (method);
7625 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7626 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7629 if (!piinfo->addr) {
7631 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7632 exc_arg = "Method contains unsupported native code";
7634 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7636 piinfo->addr = mono_lookup_internal_call (method);
7640 /* hack - redirect certain string constructors to CreateString */
7641 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7642 g_assert (!pinvoke);
7643 g_assert (method->string_ctor);
7644 g_assert (sig->hasthis);
7646 /* CreateString returns a value */
7647 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7648 csig->ret = &mono_defaults.string_class->byval_arg;
7652 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7653 if (!strcmp ("CreateString", res->name) &&
7654 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7657 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7658 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7660 /* create a wrapper to preserve .ctor in stack trace */
7661 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7664 mono_mb_emit_byte (mb, CEE_LDARG_0);
7665 for (i = 1; i <= csig->param_count; i++)
7666 mono_mb_emit_ldarg (mb, i);
7667 mono_mb_emit_managed_call (mb, res, NULL);
7668 mono_mb_emit_byte (mb, CEE_RET);
7671 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7672 info->d.string_ctor.method = method;
7674 /* use native_wrapper_cache because internal calls are looked up there */
7675 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7676 csig->param_count + 1, info, NULL);
7683 /* exception will be thrown */
7684 piinfo->addr = NULL;
7685 g_warning ("cannot find CreateString for .ctor");
7688 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7690 mb->method->save_lmf = 1;
7693 * In AOT mode and embedding scenarios, it is possible that the icall is not
7694 * registered in the runtime doing the AOT compilation.
7696 if (!piinfo->addr && !aot) {
7698 mono_mb_emit_exception (mb, exc_class, exc_arg);
7700 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7701 info->d.managed_to_native.method = method;
7703 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7705 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7706 csig->param_count + 16, info, NULL);
7712 /* internal calls: we simply push all arguments and call the method (no conversions) */
7713 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7715 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7717 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7719 /* hack - string constructors returns a value */
7720 if (method->string_ctor)
7721 csig->ret = &mono_defaults.string_class->byval_arg;
7728 * Add a null check since public icalls can be called with 'call' which
7729 * does no such check.
7731 mono_mb_emit_byte (mb, CEE_LDARG_0);
7732 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7733 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7734 mono_mb_patch_branch (mb, pos);
7736 mono_mb_emit_byte (mb, CEE_LDARG_0);
7739 for (i = 0; i < sig->param_count; i++)
7740 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7743 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7744 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7745 mono_mb_emit_calli (mb, csig);
7747 g_assert (piinfo->addr);
7748 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7750 if (check_exceptions)
7751 emit_thread_interrupt_checkpoint (mb);
7752 mono_mb_emit_byte (mb, CEE_RET);
7754 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7755 info->d.managed_to_native.method = method;
7757 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7759 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7768 g_assert (piinfo->addr);
7771 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7772 mono_method_get_marshal_info (method, mspecs);
7774 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7777 info->d.managed_to_native.method = method;
7779 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7781 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7786 for (i = sig->param_count; i >= 0; i--)
7788 mono_metadata_free_marshal_spec (mspecs [i]);
7792 /* mono_method_print_code (res); */
7798 * mono_marshal_get_native_func_wrapper:
7799 * @image: The image to use for memory allocation and for looking up custom marshallers.
7800 * @sig: The signature of the function
7801 * @func: The native function to wrap
7803 * Returns a wrapper method around native functions, similar to the pinvoke
7807 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7808 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7810 MonoMethodSignature *csig;
7812 SignaturePointerPair key, *new_key;
7813 MonoMethodBuilder *mb;
7822 // Generic types are not safe to place in MonoImage caches.
7823 g_assert (!sig->is_inflated);
7825 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7826 if ((res = mono_marshal_find_in_cache (cache, &key)))
7829 name = g_strdup_printf ("wrapper_native_%p", func);
7830 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7831 mb->method->save_lmf = 1;
7834 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7837 csig = mono_metadata_signature_dup_full (image, sig);
7840 new_key = g_new (SignaturePointerPair,1);
7841 new_key->sig = csig;
7842 new_key->pointer = func;
7844 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7850 mono_marshal_set_wrapper_info (res, NULL);
7856 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7860 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7862 MonoMethodSignature *sig, *csig;
7863 MonoMethodBuilder *mb;
7868 MonoMethodPInvoke mpiinfo;
7869 MonoMethodPInvoke *piinfo = &mpiinfo;
7870 MonoMarshalSpec **mspecs;
7871 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7872 MonoImage *image = invoke->klass->image;
7875 // FIXME: include UnmanagedFunctionPointerAttribute info
7878 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7880 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7882 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7885 memset (&mpiinfo, 0, sizeof (mpiinfo));
7886 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7888 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7889 mono_method_get_marshal_info (invoke, mspecs);
7890 /* Freed below so don't alloc from mempool */
7891 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7894 name = g_strdup_printf ("wrapper_aot_native");
7895 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7896 mb->method->save_lmf = 1;
7899 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7902 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7903 info->d.managed_to_native.method = invoke;
7905 g_assert (!sig->hasthis);
7906 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7908 res = mono_mb_create_and_cache_full (cache, invoke,
7909 mb, csig, csig->param_count + 16,
7913 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7915 mono_metadata_free_marshal_spec (mspecs [i]);
7923 * mono_marshal_emit_managed_wrapper:
7925 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7926 * the delegate which wraps the managed method to be called. For closed delegates,
7927 * it could have fewer parameters than the method it wraps.
7928 * THIS_LOC is the memory location where the target of the delegate is stored.
7931 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7934 MonoMethodSignature *sig, *csig;
7940 /* we first do all conversions */
7941 for (i = 0; i < sig->param_count; i ++) {
7942 MonoType *t = sig->params [i];
7945 case MONO_TYPE_OBJECT:
7946 case MONO_TYPE_CLASS:
7947 case MONO_TYPE_VALUETYPE:
7948 case MONO_TYPE_ARRAY:
7949 case MONO_TYPE_SZARRAY:
7950 case MONO_TYPE_STRING:
7951 case MONO_TYPE_BOOLEAN:
7952 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7956 if (!sig->ret->byref) {
7957 switch (sig->ret->type) {
7958 case MONO_TYPE_STRING:
7959 csig->ret = &mono_defaults.int_class->byval_arg;
7966 MonoMethodSignature *sig, *csig;
7967 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7968 int i, *tmp_locals, ex_local, e_local;
7969 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7970 gboolean closed = FALSE;
7975 /* allocate local 0 (pointer) src_ptr */
7976 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7977 /* allocate local 1 (pointer) dst_ptr */
7978 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7979 /* allocate local 2 (boolean) delete_old */
7980 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7982 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7983 /* Closed delegate */
7984 g_assert (sig->param_count == invoke_sig->param_count + 1);
7986 /* Use a new signature without the first argument */
7987 sig = mono_metadata_signature_dup (sig);
7988 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7989 sig->param_count --;
7992 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7993 /* allocate local 3 to store the return value */
7994 mono_mb_add_local (mb, sig->ret);
7997 if (MONO_TYPE_ISSTRUCT (sig->ret))
7998 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8000 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8001 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8006 * mono_jit_attach ();
8010 * ret = method (...);
8011 * } catch (Exception e) {
8012 * ex = mono_gchandle_new (e, false);
8014 * mono_jit_detach ();
8017 * mono_marshal_ftnptr_eh_callback (ex);
8023 clauses = g_new0 (MonoExceptionClause, 2);
8025 clause_catch = &clauses [0];
8026 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8027 clause_catch->data.catch_class = mono_defaults.exception_class;
8029 clause_finally = &clauses [1];
8030 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8032 mono_mb_emit_icon (mb, 0);
8033 mono_mb_emit_stloc (mb, 2);
8035 mono_mb_emit_icon (mb, -1);
8036 mono_mb_emit_byte (mb, CEE_CONV_U4);
8037 mono_mb_emit_stloc (mb, ex_local);
8040 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8043 * Might need to attach the thread to the JIT or change the
8044 * domain for the callback.
8046 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8048 * mono_jit_attach ();
8050 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8051 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8053 /* <interrupt check> */
8054 emit_thread_interrupt_checkpoint (mb);
8056 /* we first do all conversions */
8057 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8058 for (i = 0; i < sig->param_count; i ++) {
8059 MonoType *t = sig->params [i];
8062 case MONO_TYPE_OBJECT:
8063 case MONO_TYPE_CLASS:
8064 case MONO_TYPE_VALUETYPE:
8065 case MONO_TYPE_ARRAY:
8066 case MONO_TYPE_SZARRAY:
8067 case MONO_TYPE_STRING:
8068 case MONO_TYPE_BOOLEAN:
8069 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8079 if (target_handle) {
8080 mono_mb_emit_icon (mb, (gint32)target_handle);
8081 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8084 g_assert_not_reached ();
8086 } else if (closed) {
8087 mono_mb_emit_icon (mb, (gint32)target_handle);
8088 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8091 for (i = 0; i < sig->param_count; i++) {
8092 MonoType *t = sig->params [i];
8094 if (tmp_locals [i]) {
8096 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8098 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8101 mono_mb_emit_ldarg (mb, i);
8104 /* ret = method (...) */
8105 mono_mb_emit_managed_call (mb, method, NULL);
8107 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8108 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8109 mono_class_init (klass);
8110 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8111 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8112 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8113 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8114 mono_mb_emit_stloc (mb, m->vtaddr_var);
8118 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8119 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8120 } else if (!sig->ret->byref) {
8121 switch (sig->ret->type) {
8122 case MONO_TYPE_VOID:
8124 case MONO_TYPE_BOOLEAN:
8127 case MONO_TYPE_CHAR:
8139 case MONO_TYPE_OBJECT:
8140 mono_mb_emit_stloc (mb, 3);
8142 case MONO_TYPE_STRING:
8143 csig->ret = &mono_defaults.int_class->byval_arg;
8144 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8146 case MONO_TYPE_VALUETYPE:
8147 case MONO_TYPE_CLASS:
8148 case MONO_TYPE_SZARRAY:
8149 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8152 g_warning ("return type 0x%02x unknown", sig->ret->type);
8153 g_assert_not_reached ();
8156 mono_mb_emit_stloc (mb, 3);
8159 /* Convert byref arguments back */
8160 for (i = 0; i < sig->param_count; i ++) {
8161 MonoType *t = sig->params [i];
8162 MonoMarshalSpec *spec = mspecs [i + 1];
8164 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8165 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8167 else if (t->byref) {
8169 case MONO_TYPE_CLASS:
8170 case MONO_TYPE_VALUETYPE:
8171 case MONO_TYPE_OBJECT:
8172 case MONO_TYPE_STRING:
8173 case MONO_TYPE_BOOLEAN:
8174 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8180 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8181 /* The [Out] information is encoded in the delegate signature */
8183 case MONO_TYPE_SZARRAY:
8184 case MONO_TYPE_CLASS:
8185 case MONO_TYPE_VALUETYPE:
8186 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8189 g_assert_not_reached ();
8194 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8198 /* catch (Exception e) { */
8199 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8200 clause_catch->handler_offset = mono_mb_get_label (mb);
8202 mono_mb_emit_stloc (mb, e_local);
8204 /* ex = mono_gchandle_new (e, false); */
8205 mono_mb_emit_ldloc (mb, e_local);
8206 mono_mb_emit_icon (mb, 0);
8207 mono_mb_emit_icall (mb, mono_gchandle_new);
8208 mono_mb_emit_stloc (mb, ex_local);
8210 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8213 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8216 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8217 clause_finally->handler_offset = mono_mb_get_label (mb);
8220 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8222 * mono_jit_detach ();
8224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8225 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8228 mono_mb_emit_ldloc (mb, ex_local);
8229 mono_mb_emit_icon (mb, -1);
8230 mono_mb_emit_byte (mb, CEE_CONV_U4);
8231 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8233 /* mono_marshal_ftnptr_eh_callback (ex) */
8234 mono_mb_emit_ldloc (mb, ex_local);
8235 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8238 mono_mb_patch_branch (mb, ex_m1_pos);
8240 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8242 /* } [endfinally] */
8243 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8245 mono_mb_patch_branch (mb, leave_try_pos);
8246 mono_mb_patch_branch (mb, leave_catch_pos);
8249 if (m->retobj_var) {
8250 mono_mb_emit_ldloc (mb, m->retobj_var);
8251 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8252 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8255 if (!MONO_TYPE_IS_VOID(sig->ret))
8256 mono_mb_emit_ldloc (mb, 3);
8257 mono_mb_emit_byte (mb, CEE_RET);
8260 mono_mb_set_clauses (mb, 2, clauses);
8268 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8270 MonoMethodSignature *sig;
8275 * Under windows, delegates passed to native code must use the STDCALL
8276 * calling convention.
8278 csig->call_convention = MONO_CALL_STDCALL;
8281 sig = mono_method_signature (method);
8283 /* Change default calling convention if needed */
8284 /* Why is this a modopt ? */
8285 if (sig->ret && sig->ret->num_mods) {
8286 for (i = 0; i < sig->ret->num_mods; ++i) {
8288 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8289 g_assert (mono_error_ok (&error));
8290 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8291 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8292 csig->call_convention = MONO_CALL_C;
8293 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8294 csig->call_convention = MONO_CALL_STDCALL;
8295 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8296 csig->call_convention = MONO_CALL_FASTCALL;
8297 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8298 csig->call_convention = MONO_CALL_THISCALL;
8305 * generates IL code to call managed methods from unmanaged code
8306 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8309 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8312 MonoMethodSignature *sig, *csig, *invoke_sig;
8313 MonoMethodBuilder *mb;
8314 MonoMethod *res, *invoke;
8315 MonoMarshalSpec **mspecs;
8316 MonoMethodPInvoke piinfo;
8319 EmitMarshalContext m;
8321 g_assert (method != NULL);
8322 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8325 * FIXME: Should cache the method+delegate type pair, since the same method
8326 * could be called with different delegates, thus different marshalling
8329 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8331 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8334 invoke = mono_get_delegate_invoke (delegate_klass);
8335 invoke_sig = mono_method_signature (invoke);
8337 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8338 mono_method_get_marshal_info (invoke, mspecs);
8340 sig = mono_method_signature (method);
8342 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8344 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8345 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8347 /* we copy the signature, so that we can modify it */
8349 /* Need to free this later */
8350 csig = mono_metadata_signature_dup (invoke_sig);
8352 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8356 memset (&m, 0, sizeof (m));
8362 m.image = method->klass->image;
8364 mono_marshal_set_callconv_from_modopt (invoke, csig);
8366 /* The attribute is only available in Net 2.0 */
8367 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8368 MonoCustomAttrInfo *cinfo;
8369 MonoCustomAttrEntry *attr;
8372 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8373 * contents of the attribute without constructing it, as that might not be
8374 * possible when running in cross-compiling mode.
8376 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8377 mono_error_assert_ok (&error);
8380 for (i = 0; i < cinfo->num_attrs; ++i) {
8381 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8382 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8383 attr = &cinfo->attrs [i];
8389 MonoArray *typed_args, *named_args;
8390 CattrNamedArg *arginfo;
8394 MonoBoolean set_last_error = 0;
8397 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8398 g_assert (mono_error_ok (&error));
8399 g_assert (mono_array_length (typed_args) == 1);
8402 o = mono_array_get (typed_args, MonoObject*, 0);
8403 call_conv = *(gint32*)mono_object_unbox (o);
8406 for (i = 0; i < mono_array_length (named_args); ++i) {
8407 CattrNamedArg *narg = &arginfo [i];
8409 o = mono_array_get (named_args, MonoObject*, i);
8411 g_assert (narg->field);
8412 if (!strcmp (narg->field->name, "CharSet")) {
8413 charset = *(gint32*)mono_object_unbox (o);
8414 } else if (!strcmp (narg->field->name, "SetLastError")) {
8415 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8416 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8417 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8418 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8419 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8421 g_assert_not_reached ();
8427 memset (&piinfo, 0, sizeof (piinfo));
8429 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8431 csig->call_convention = call_conv - 1;
8434 if (cinfo && !cinfo->cached)
8435 mono_custom_attrs_free (cinfo);
8438 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8440 if (!target_handle) {
8443 // FIXME: Associate it with the method+delegate_klass pair
8444 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8445 info->d.native_to_managed.method = method;
8446 info->d.native_to_managed.klass = delegate_klass;
8448 res = mono_mb_create_and_cache_full (cache, method,
8449 mb, csig, sig->param_count + 16,
8455 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8459 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8461 mono_metadata_free_marshal_spec (mspecs [i]);
8464 /* mono_method_print_code (res); */
8470 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8474 MonoMethodSignature *sig;
8475 MonoMethodBuilder *mb;
8480 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8482 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8485 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8486 MonoMethodSignature *csig;
8487 MonoMarshalSpec **mspecs;
8488 EmitMarshalContext m;
8490 sig = mono_method_signature (method);
8491 g_assert (!sig->hasthis);
8493 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8494 mono_method_get_marshal_info (method, mspecs);
8496 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8497 csig = mono_metadata_signature_dup_full (image, sig);
8501 memset (&m, 0, sizeof (m));
8509 mono_marshal_set_callconv_from_modopt (method, csig);
8511 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8513 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8518 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8521 for (i = sig->param_count; i >= 0; i--)
8523 mono_metadata_free_marshal_spec (mspecs [i]);
8526 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8527 mono_error_assert_ok (&error);
8528 return compiled_ptr;
8531 sig = mono_method_signature (method);
8532 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8534 param_count = sig->param_count + sig->hasthis;
8536 for (i = 0; i < param_count; i++)
8537 mono_mb_emit_ldarg (mb, i);
8539 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8540 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8542 mono_mb_emit_op (mb, CEE_CALL, method);
8543 mono_mb_emit_byte (mb, CEE_RET);
8548 method = mono_mb_create (mb, sig, param_count, NULL);
8551 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8552 mono_error_assert_ok (&error);
8553 return compiled_ptr;
8559 * The code directly following this is the cache hit, value positive branch
8561 * This function takes a new method builder with 0 locals and adds two locals
8562 * to create multiple out-branches and the fall through state of having the object
8563 * on the stack after a cache miss
8566 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8567 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8568 MonoMethodBuilder *mb)
8572 /* allocate local 0 (pointer) obj_vtable */
8573 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8574 /* allocate local 1 (pointer) cached_vtable */
8575 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8578 mono_mb_emit_ldarg (mb, obj_arg_position);
8579 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8581 /*obj_vtable = obj->vtable;*/
8582 mono_mb_emit_ldarg (mb, obj_arg_position);
8583 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8584 mono_mb_emit_byte (mb, CEE_LDIND_I);
8585 mono_mb_emit_stloc (mb, 0);
8587 /* cached_vtable = *cache*/
8588 mono_mb_emit_ldarg (mb, cache_arg_position);
8589 mono_mb_emit_byte (mb, CEE_LDIND_I);
8590 mono_mb_emit_stloc (mb, 1);
8592 mono_mb_emit_ldloc (mb, 1);
8593 mono_mb_emit_byte (mb, CEE_LDC_I4);
8594 mono_mb_emit_i4 (mb, ~0x1);
8595 mono_mb_emit_byte (mb, CEE_CONV_I);
8596 mono_mb_emit_byte (mb, CEE_AND);
8597 mono_mb_emit_ldloc (mb, 0);
8598 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8599 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8601 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8602 mono_mb_emit_ldloc (mb, 1);
8603 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8604 mono_mb_emit_byte (mb, CEE_CONV_U);
8605 mono_mb_emit_byte (mb, CEE_AND);
8606 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8607 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8610 mono_mb_patch_branch (mb, cache_miss_pos);
8613 mono_mb_emit_ldarg (mb, obj_arg_position);
8614 mono_mb_emit_ldarg (mb, class_arg_position);
8615 mono_mb_emit_ldarg (mb, cache_arg_position);
8616 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8619 #endif /* DISABLE_JIT */
8622 * This does the equivalent of mono_object_castclass_with_cache.
8623 * The wrapper info for the wrapper is a WrapperInfo structure.
8626 mono_marshal_get_castclass_with_cache (void)
8628 static MonoMethod *cached;
8630 MonoMethodBuilder *mb;
8631 MonoMethodSignature *sig;
8632 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8635 const int obj_arg_position = 0;
8636 const int class_arg_position = 1;
8637 const int cache_arg_position = 2;
8642 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8643 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8644 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8645 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8646 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8647 sig->ret = &mono_defaults.object_class->byval_arg;
8651 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8652 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8653 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8656 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8657 mono_mb_emit_ldarg (mb, obj_arg_position);
8658 mono_mb_emit_byte (mb, CEE_RET);
8661 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8662 mono_mb_patch_branch (mb, invalid_cast_pos);
8663 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8666 mono_mb_patch_branch (mb, return_null_pos);
8667 mono_mb_emit_byte (mb, CEE_LDNULL);
8668 mono_mb_emit_byte (mb, CEE_RET);
8669 #endif /* DISABLE_JIT */
8671 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8672 res = mono_mb_create (mb, sig, 8, info);
8675 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8676 mono_free_method (res);
8677 mono_metadata_free_method_signature (sig);
8685 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8688 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8689 mono_error_raise_exception (&error); /* FIXME don't raise here */
8691 #ifndef DISABLE_REMOTING
8692 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8696 uintptr_t cache_update = (uintptr_t)obj->vtable;
8698 cache_update = cache_update | 0x1;
8700 *cache = cache_update;
8706 * This does the equivalent of mono_object_isinst_with_cache.
8707 * The wrapper info for the wrapper is a WrapperInfo structure.
8710 mono_marshal_get_isinst_with_cache (void)
8712 static MonoMethod *cached;
8714 MonoMethodBuilder *mb;
8715 MonoMethodSignature *sig;
8716 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8719 const int obj_arg_position = 0;
8720 const int class_arg_position = 1;
8721 const int cache_arg_position = 2;
8726 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8727 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8729 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8731 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8733 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8734 sig->ret = &mono_defaults.object_class->byval_arg;
8738 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8739 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8740 // Return the object gotten via the slow path.
8741 mono_mb_emit_byte (mb, CEE_RET);
8744 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8745 mono_mb_patch_branch (mb, return_null_pos);
8746 mono_mb_emit_byte (mb, CEE_LDNULL);
8747 mono_mb_emit_byte (mb, CEE_RET);
8750 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8751 mono_mb_emit_ldarg (mb, obj_arg_position);
8752 mono_mb_emit_byte (mb, CEE_RET);
8755 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8756 res = mono_mb_create (mb, sig, 8, info);
8759 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8760 mono_free_method (res);
8761 mono_metadata_free_method_signature (sig);
8769 * mono_marshal_get_isinst:
8770 * @klass: the type of the field
8772 * This method generates a function which can be used to check if an object is
8773 * an instance of the given type, icluding the case where the object is a proxy.
8774 * The generated function has the following signature:
8775 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8778 mono_marshal_get_isinst (MonoClass *klass)
8780 static MonoMethodSignature *isint_sig = NULL;
8784 int pos_was_ok, pos_end;
8785 #ifndef DISABLE_REMOTING
8786 int pos_end2, pos_failed;
8789 MonoMethodBuilder *mb;
8791 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8792 if ((res = mono_marshal_find_in_cache (cache, klass)))
8796 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8797 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8798 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8799 isint_sig->pinvoke = 0;
8802 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8803 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8806 mb->method->save_lmf = 1;
8809 /* check if the object is a proxy that needs special cast */
8810 mono_mb_emit_ldarg (mb, 0);
8811 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8812 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8814 /* The result of MONO_CISINST can be:
8815 0) the type check succeeded
8816 1) the type check did not succeed
8817 2) a CanCastTo call is needed */
8818 #ifndef DISABLE_REMOTING
8819 mono_mb_emit_byte (mb, CEE_DUP);
8820 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8822 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8823 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8825 /* get the real proxy from the transparent proxy*/
8827 mono_mb_emit_ldarg (mb, 0);
8828 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8829 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8833 mono_mb_patch_branch (mb, pos_failed);
8834 mono_mb_emit_byte (mb, CEE_LDNULL);
8835 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8839 mono_mb_patch_branch (mb, pos_was_ok);
8840 mono_mb_emit_byte (mb, CEE_POP);
8841 mono_mb_emit_ldarg (mb, 0);
8845 mono_mb_patch_branch (mb, pos_end);
8846 mono_mb_patch_branch (mb, pos_end2);
8847 mono_mb_emit_byte (mb, CEE_RET);
8849 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8853 mono_mb_emit_byte (mb, CEE_LDNULL);
8854 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8858 mono_mb_patch_branch (mb, pos_was_ok);
8859 mono_mb_emit_ldarg (mb, 0);
8863 mono_mb_patch_branch (mb, pos_end);
8864 mono_mb_emit_byte (mb, CEE_RET);
8865 #endif /* DISABLE_REMOTING */
8866 #endif /* DISABLE_JIT */
8868 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8869 info->d.proxy.klass = klass;
8870 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8877 * mono_marshal_get_castclass:
8878 * @klass: the type of the field
8880 * This method generates a function which can be used to cast an object to
8881 * an instance of the given type, icluding the case where the object is a proxy.
8882 * The generated function has the following signature:
8883 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8884 * The wrapper info for the wrapper is a WrapperInfo structure.
8887 mono_marshal_get_castclass (MonoClass *klass)
8889 static MonoMethodSignature *castclass_sig = NULL;
8892 #ifndef DISABLE_REMOTING
8893 int pos_was_ok, pos_was_ok2;
8896 MonoMethodBuilder *mb;
8899 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8900 if ((res = mono_marshal_find_in_cache (cache, klass)))
8903 if (!castclass_sig) {
8904 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8905 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8906 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8907 castclass_sig->pinvoke = 0;
8910 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8911 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8914 mb->method->save_lmf = 1;
8917 /* check if the object is a proxy that needs special cast */
8918 mono_mb_emit_ldarg (mb, 0);
8919 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8920 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8922 /* The result of MONO_CCASTCLASS can be:
8923 0) the cast is valid
8924 1) cast of unknown proxy type
8925 or an exception if the cast is is invalid
8927 #ifndef DISABLE_REMOTING
8928 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8930 /* get the real proxy from the transparent proxy*/
8932 mono_mb_emit_ldarg (mb, 0);
8933 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8934 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8937 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8940 mono_mb_patch_branch (mb, pos_was_ok);
8941 mono_mb_patch_branch (mb, pos_was_ok2);
8943 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8944 mono_mb_emit_byte (mb, CEE_POP);
8945 #endif /* DISABLE_REMOTING */
8947 mono_mb_emit_ldarg (mb, 0);
8950 mono_mb_emit_byte (mb, CEE_RET);
8951 #endif /* DISABLE_JIT */
8953 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8955 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8963 * mono_marshal_get_struct_to_ptr:
8966 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8967 * The wrapper info for the wrapper is a WrapperInfo structure.
8970 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8972 MonoMethodBuilder *mb;
8973 static MonoMethod *stoptr = NULL;
8977 g_assert (klass != NULL);
8979 mono_marshal_load_type_info (klass);
8981 if (klass->marshal_info->str_to_ptr)
8982 return klass->marshal_info->str_to_ptr;
8985 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8988 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8991 if (klass->blittable) {
8992 mono_mb_emit_byte (mb, CEE_LDARG_1);
8993 mono_mb_emit_byte (mb, CEE_LDARG_0);
8994 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8995 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8996 mono_mb_emit_byte (mb, CEE_PREFIX1);
8997 mono_mb_emit_byte (mb, CEE_CPBLK);
9000 /* allocate local 0 (pointer) src_ptr */
9001 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9002 /* allocate local 1 (pointer) dst_ptr */
9003 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9004 /* allocate local 2 (boolean) delete_old */
9005 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9006 mono_mb_emit_byte (mb, CEE_LDARG_2);
9007 mono_mb_emit_stloc (mb, 2);
9009 /* initialize src_ptr to point to the start of object data */
9010 mono_mb_emit_byte (mb, CEE_LDARG_0);
9011 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9012 mono_mb_emit_stloc (mb, 0);
9014 /* initialize dst_ptr */
9015 mono_mb_emit_byte (mb, CEE_LDARG_1);
9016 mono_mb_emit_stloc (mb, 1);
9018 emit_struct_conv (mb, klass, FALSE);
9021 mono_mb_emit_byte (mb, CEE_RET);
9023 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9024 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9027 mono_marshal_lock ();
9028 if (!klass->marshal_info->str_to_ptr)
9029 klass->marshal_info->str_to_ptr = res;
9031 res = klass->marshal_info->str_to_ptr;
9032 mono_marshal_unlock ();
9037 * mono_marshal_get_ptr_to_struct:
9040 * generates IL code for PtrToStructure (IntPtr src, object structure)
9041 * The wrapper info for the wrapper is a WrapperInfo structure.
9044 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9046 MonoMethodBuilder *mb;
9047 static MonoMethodSignature *ptostr = NULL;
9051 g_assert (klass != NULL);
9053 mono_marshal_load_type_info (klass);
9055 if (klass->marshal_info->ptr_to_str)
9056 return klass->marshal_info->ptr_to_str;
9059 MonoMethodSignature *sig;
9061 /* Create the signature corresponding to
9062 static void PtrToStructure (IntPtr ptr, object structure);
9063 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9064 sig = mono_create_icall_signature ("void ptr object");
9065 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9067 mono_memory_barrier ();
9071 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9074 if (klass->blittable) {
9075 mono_mb_emit_byte (mb, CEE_LDARG_1);
9076 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9077 mono_mb_emit_byte (mb, CEE_LDARG_0);
9078 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9079 mono_mb_emit_byte (mb, CEE_PREFIX1);
9080 mono_mb_emit_byte (mb, CEE_CPBLK);
9083 /* allocate local 0 (pointer) src_ptr */
9084 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9085 /* allocate local 1 (pointer) dst_ptr */
9086 mono_mb_add_local (mb, &klass->this_arg);
9088 /* initialize src_ptr to point to the start of object data */
9089 mono_mb_emit_byte (mb, CEE_LDARG_0);
9090 mono_mb_emit_stloc (mb, 0);
9092 /* initialize dst_ptr */
9093 mono_mb_emit_byte (mb, CEE_LDARG_1);
9094 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9095 mono_mb_emit_stloc (mb, 1);
9097 emit_struct_conv (mb, klass, TRUE);
9100 mono_mb_emit_byte (mb, CEE_RET);
9102 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9103 res = mono_mb_create (mb, ptostr, 0, info);
9106 mono_marshal_lock ();
9107 if (!klass->marshal_info->ptr_to_str)
9108 klass->marshal_info->ptr_to_str = res;
9110 res = klass->marshal_info->ptr_to_str;
9111 mono_marshal_unlock ();
9116 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9117 * This is used to avoid infinite recursion since it is hard to determine where to
9118 * replace a method with its synchronized wrapper, and where not.
9119 * The runtime should execute METHOD instead of the wrapper.
9120 * The wrapper info for the wrapper is a WrapperInfo structure.
9123 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9125 MonoMethodBuilder *mb;
9127 MonoMethodSignature *sig;
9129 MonoGenericContext *ctx = NULL;
9130 MonoGenericContainer *container = NULL;
9132 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9133 ctx = &((MonoMethodInflated*)method)->context;
9134 method = ((MonoMethodInflated*)method)->declaring;
9135 container = mono_method_get_generic_container (method);
9137 container = method->klass->generic_container;
9138 g_assert (container);
9141 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9143 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9144 mono_mb_emit_byte (mb, CEE_RET);
9146 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9148 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9149 info->d.synchronized_inner.method = method;
9150 res = mono_mb_create (mb, sig, 0, info);
9154 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9155 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9161 * generates IL code for the synchronized wrapper: the generated method
9162 * calls METHOD while locking 'this' or the parent type.
9165 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9167 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9168 MonoMethodSignature *sig;
9169 MonoExceptionClause *clause;
9170 MonoMethodBuilder *mb;
9174 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9175 MonoGenericContext *ctx = NULL;
9176 MonoMethod *orig_method = NULL;
9177 MonoGenericContainer *container = NULL;
9181 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9184 /* FIXME: Support generic methods too */
9185 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9186 orig_method = method;
9187 ctx = &((MonoMethodInflated*)method)->context;
9188 method = ((MonoMethodInflated*)method)->declaring;
9189 container = mono_method_get_generic_container (method);
9191 container = method->klass->generic_container;
9192 g_assert (container);
9199 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9200 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9204 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9205 if ((res = mono_marshal_find_in_cache (cache, method)))
9209 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9212 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9214 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9215 info->d.synchronized.method = method;
9218 mb->skip_visibility = 1;
9220 if (!MONO_TYPE_IS_VOID (sig->ret))
9221 ret_local = mono_mb_add_local (mb, sig->ret);
9224 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9225 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9227 /* This will throw the type load exception when the wrapper is compiled */
9228 mono_mb_emit_byte (mb, CEE_LDNULL);
9229 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9230 mono_mb_emit_byte (mb, CEE_POP);
9232 if (!MONO_TYPE_IS_VOID (sig->ret))
9233 mono_mb_emit_ldloc (mb, ret_local);
9234 mono_mb_emit_byte (mb, CEE_RET);
9237 res = mono_mb_create_and_cache_full (cache, method,
9238 mb, sig, sig->param_count + 16, info, NULL);
9246 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9247 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9249 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9250 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9253 mono_marshal_lock ();
9255 if (!enter_method) {
9256 MonoMethodDesc *desc;
9258 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9259 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9260 g_assert (enter_method);
9261 mono_method_desc_free (desc);
9263 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9264 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9265 g_assert (exit_method);
9266 mono_method_desc_free (desc);
9268 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9269 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9270 g_assert (gettypefromhandle_method);
9271 mono_method_desc_free (desc);
9274 mono_marshal_unlock ();
9277 /* Push this or the type object */
9278 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9279 /* We have special handling for this in the JIT */
9280 int index = mono_mb_add_data (mb, method->klass);
9281 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9282 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9283 mono_mb_emit_i4 (mb, index);
9285 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9288 mono_mb_emit_ldarg (mb, 0);
9289 mono_mb_emit_stloc (mb, this_local);
9291 /* Call Monitor::Enter() */
9292 mono_mb_emit_ldloc (mb, this_local);
9293 mono_mb_emit_ldloc_addr (mb, taken_local);
9294 mono_mb_emit_managed_call (mb, enter_method, NULL);
9296 clause->try_offset = mono_mb_get_label (mb);
9298 /* Call the method */
9300 mono_mb_emit_ldarg (mb, 0);
9301 for (i = 0; i < sig->param_count; i++)
9302 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9306 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9307 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9309 mono_mb_emit_managed_call (mb, method, NULL);
9312 if (!MONO_TYPE_IS_VOID (sig->ret))
9313 mono_mb_emit_stloc (mb, ret_local);
9315 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9317 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9318 clause->handler_offset = mono_mb_get_label (mb);
9320 /* Call Monitor::Exit() if needed */
9321 mono_mb_emit_ldloc (mb, taken_local);
9322 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9323 mono_mb_emit_ldloc (mb, this_local);
9324 mono_mb_emit_managed_call (mb, exit_method, NULL);
9325 mono_mb_patch_branch (mb, pos2);
9326 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9328 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9330 mono_mb_patch_branch (mb, pos);
9331 if (!MONO_TYPE_IS_VOID (sig->ret))
9332 mono_mb_emit_ldloc (mb, ret_local);
9333 mono_mb_emit_byte (mb, CEE_RET);
9335 mono_mb_set_clauses (mb, 1, clause);
9340 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9341 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9343 res = mono_mb_create_and_cache_full (cache, method,
9344 mb, sig, sig->param_count + 16, info, NULL);
9353 * the returned method calls 'method' unboxing the this argument
9356 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9358 MonoMethodSignature *sig = mono_method_signature (method);
9360 MonoMethodBuilder *mb;
9365 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9367 if ((res = mono_marshal_find_in_cache (cache, method)))
9370 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9372 g_assert (sig->hasthis);
9375 mono_mb_emit_ldarg (mb, 0);
9376 mono_mb_emit_icon (mb, sizeof (MonoObject));
9377 mono_mb_emit_byte (mb, CEE_ADD);
9378 for (i = 0; i < sig->param_count; ++i)
9379 mono_mb_emit_ldarg (mb, i + 1);
9380 mono_mb_emit_managed_call (mb, method, NULL);
9381 mono_mb_emit_byte (mb, CEE_RET);
9384 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9385 info->d.unbox.method = method;
9387 res = mono_mb_create_and_cache_full (cache, method,
9388 mb, sig, sig->param_count + 16, info, NULL);
9391 /* mono_method_print_code (res); */
9397 STELEMREF_OBJECT, /*no check at all*/
9398 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9399 STELEMREF_CLASS, /*only the klass->parents check*/
9400 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9401 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9402 STELEMREF_KIND_COUNT
9405 static const char *strelemref_wrapper_name[] = {
9406 "object", "sealed_class", "class", "interface", "complex"
9410 is_monomorphic_array (MonoClass *klass)
9412 MonoClass *element_class;
9413 if (klass->rank != 1)
9416 element_class = klass->element_class;
9417 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9421 get_virtual_stelemref_kind (MonoClass *element_class)
9423 if (element_class == mono_defaults.object_class)
9424 return STELEMREF_OBJECT;
9425 if (is_monomorphic_array (element_class))
9426 return STELEMREF_SEALED_CLASS;
9427 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9428 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9429 #ifdef COMPRESSED_INTERFACE_BITMAP
9430 return STELEMREF_COMPLEX;
9432 return STELEMREF_INTERFACE;
9434 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9435 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9436 return STELEMREF_COMPLEX;
9437 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9438 return STELEMREF_SEALED_CLASS;
9439 return STELEMREF_CLASS;
9445 load_array_element_address (MonoMethodBuilder *mb)
9447 mono_mb_emit_ldarg (mb, 0);
9448 mono_mb_emit_ldarg (mb, 1);
9449 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9453 load_array_class (MonoMethodBuilder *mb, int aklass)
9455 mono_mb_emit_ldarg (mb, 0);
9456 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9457 mono_mb_emit_byte (mb, CEE_LDIND_I);
9458 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9459 mono_mb_emit_byte (mb, CEE_LDIND_I);
9460 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9461 mono_mb_emit_byte (mb, CEE_LDIND_I);
9462 mono_mb_emit_stloc (mb, aklass);
9466 load_value_class (MonoMethodBuilder *mb, int vklass)
9468 mono_mb_emit_ldarg (mb, 2);
9469 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9470 mono_mb_emit_byte (mb, CEE_LDIND_I);
9471 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9472 mono_mb_emit_byte (mb, CEE_LDIND_I);
9473 mono_mb_emit_stloc (mb, vklass);
9479 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9481 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9482 printf ("slow vstore of %s\n", name);
9488 * The wrapper info for the wrapper is a WrapperInfo structure.
9491 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9492 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9493 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9494 * - Add a case for arrays of arrays.
9497 get_virtual_stelemref_wrapper (int kind)
9499 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9500 static MonoMethodSignature *signature;
9501 MonoMethodBuilder *mb;
9504 const char *param_names [16];
9506 int aklass, vklass, vtable, uiid;
9507 int array_slot_addr;
9510 if (cached_methods [kind])
9511 return cached_methods [kind];
9513 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9514 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9518 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9520 /* void this::stelemref (size_t idx, void* value) */
9521 sig->ret = &mono_defaults.void_class->byval_arg;
9522 sig->hasthis = TRUE;
9523 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9524 sig->params [1] = &mono_defaults.object_class->byval_arg;
9529 param_names [0] = "index";
9530 param_names [1] = "value";
9531 mono_mb_set_param_names (mb, param_names);
9533 /*For now simply call plain old stelemref*/
9535 case STELEMREF_OBJECT:
9536 /* ldelema (implicit bound check) */
9537 load_array_element_address (mb);
9539 mono_mb_emit_ldarg (mb, 2);
9540 mono_mb_emit_byte (mb, CEE_STIND_REF);
9541 mono_mb_emit_byte (mb, CEE_RET);
9544 case STELEMREF_COMPLEX:
9546 <ldelema (bound check)>
9549 if (!mono_object_isinst (value, aklass))
9553 *array_slot_addr = value;
9556 throw new ArrayTypeMismatchException ();
9559 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9560 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9564 /*Use this to debug/record stores that are going thru the slow path*/
9565 MonoMethodSignature *csig;
9566 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9567 csig->ret = &mono_defaults.void_class->byval_arg;
9568 csig->params [0] = &mono_defaults.object_class->byval_arg;
9569 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9570 csig->params [2] = &mono_defaults.object_class->byval_arg;
9571 mono_mb_emit_ldarg (mb, 0);
9572 mono_mb_emit_ldarg (mb, 1);
9573 mono_mb_emit_ldarg (mb, 2);
9574 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9578 /* ldelema (implicit bound check) */
9579 load_array_element_address (mb);
9580 mono_mb_emit_stloc (mb, array_slot_addr);
9582 /* if (!value) goto do_store */
9583 mono_mb_emit_ldarg (mb, 2);
9584 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9586 /* aklass = array->vtable->klass->element_class */
9587 load_array_class (mb, aklass);
9589 /*if (mono_object_isinst (value, aklass)) */
9590 mono_mb_emit_ldarg (mb, 2);
9591 mono_mb_emit_ldloc (mb, aklass);
9592 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9593 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9596 mono_mb_patch_branch (mb, b1);
9597 mono_mb_emit_ldloc (mb, array_slot_addr);
9598 mono_mb_emit_ldarg (mb, 2);
9599 mono_mb_emit_byte (mb, CEE_STIND_REF);
9600 mono_mb_emit_byte (mb, CEE_RET);
9603 mono_mb_patch_branch (mb, b2);
9605 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9608 case STELEMREF_SEALED_CLASS:
9610 <ldelema (bound check)>
9614 aklass = array->vtable->klass->element_class;
9615 vklass = value->vtable->klass;
9617 if (vklass != aklass)
9621 *array_slot_addr = value;
9624 throw new ArrayTypeMismatchException ();
9626 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9627 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9628 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9631 /* ldelema (implicit bound check) */
9632 load_array_element_address (mb);
9633 mono_mb_emit_stloc (mb, array_slot_addr);
9635 /* if (!value) goto do_store */
9636 mono_mb_emit_ldarg (mb, 2);
9637 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9639 /* aklass = array->vtable->klass->element_class */
9640 load_array_class (mb, aklass);
9642 /* vklass = value->vtable->klass */
9643 load_value_class (mb, vklass);
9645 /*if (vklass != aklass) goto do_exception; */
9646 mono_mb_emit_ldloc (mb, aklass);
9647 mono_mb_emit_ldloc (mb, vklass);
9648 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9651 mono_mb_patch_branch (mb, b1);
9652 mono_mb_emit_ldloc (mb, array_slot_addr);
9653 mono_mb_emit_ldarg (mb, 2);
9654 mono_mb_emit_byte (mb, CEE_STIND_REF);
9655 mono_mb_emit_byte (mb, CEE_RET);
9658 mono_mb_patch_branch (mb, b2);
9659 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9662 case STELEMREF_CLASS:
9665 <ldelema (bound check)>
9669 aklass = array->vtable->klass->element_class;
9670 vklass = value->vtable->klass;
9672 if (vklass->idepth < aklass->idepth)
9675 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9679 *array_slot_addr = value;
9683 throw new ArrayTypeMismatchException ();
9685 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9686 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9687 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9689 /* ldelema (implicit bound check) */
9690 load_array_element_address (mb);
9691 mono_mb_emit_stloc (mb, array_slot_addr);
9693 /* if (!value) goto do_store */
9694 mono_mb_emit_ldarg (mb, 2);
9695 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9697 /* aklass = array->vtable->klass->element_class */
9698 load_array_class (mb, aklass);
9700 /* vklass = value->vtable->klass */
9701 load_value_class (mb, vklass);
9703 /*if (mono_object_isinst (value, aklass)) */
9704 mono_mb_emit_ldarg (mb, 2);
9705 mono_mb_emit_ldloc (mb, aklass);
9706 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9707 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9709 /* if (vklass->idepth < aklass->idepth) goto failue */
9710 mono_mb_emit_ldloc (mb, vklass);
9711 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9712 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9714 mono_mb_emit_ldloc (mb, aklass);
9715 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9716 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9718 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9720 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9721 mono_mb_emit_ldloc (mb, vklass);
9722 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9723 mono_mb_emit_byte (mb, CEE_LDIND_I);
9725 mono_mb_emit_ldloc (mb, aklass);
9726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9727 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9728 mono_mb_emit_icon (mb, 1);
9729 mono_mb_emit_byte (mb, CEE_SUB);
9730 mono_mb_emit_icon (mb, sizeof (void*));
9731 mono_mb_emit_byte (mb, CEE_MUL);
9732 mono_mb_emit_byte (mb, CEE_ADD);
9733 mono_mb_emit_byte (mb, CEE_LDIND_I);
9735 mono_mb_emit_ldloc (mb, aklass);
9736 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9739 mono_mb_patch_branch (mb, b1);
9740 mono_mb_emit_ldloc (mb, array_slot_addr);
9741 mono_mb_emit_ldarg (mb, 2);
9742 mono_mb_emit_byte (mb, CEE_STIND_REF);
9743 mono_mb_emit_byte (mb, CEE_RET);
9746 mono_mb_patch_branch (mb, b2);
9747 mono_mb_patch_branch (mb, b3);
9749 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9752 case STELEMREF_INTERFACE:
9759 klass = array->obj.vtable->klass->element_class;
9761 uiid = klass->interface_id;
9762 if (uiid > vt->max_interface_id)
9764 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9767 mono_array_setref (array, index, value);
9770 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9772 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9773 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9774 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9775 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9777 /* ldelema (implicit bound check) */
9778 load_array_element_address (mb);
9779 mono_mb_emit_stloc (mb, array_slot_addr);
9781 /* if (!value) goto do_store */
9782 mono_mb_emit_ldarg (mb, 2);
9783 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9785 /* klass = array->vtable->klass->element_class */
9786 load_array_class (mb, aklass);
9788 /* vt = value->vtable */
9789 mono_mb_emit_ldarg (mb, 2);
9790 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9791 mono_mb_emit_byte (mb, CEE_LDIND_I);
9792 mono_mb_emit_stloc (mb, vtable);
9794 /* uiid = klass->interface_id; */
9795 mono_mb_emit_ldloc (mb, aklass);
9796 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9797 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9798 mono_mb_emit_stloc (mb, uiid);
9800 /*if (uiid > vt->max_interface_id)*/
9801 mono_mb_emit_ldloc (mb, uiid);
9802 mono_mb_emit_ldloc (mb, vtable);
9803 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9804 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9805 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9807 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9809 /*vt->interface_bitmap*/
9810 mono_mb_emit_ldloc (mb, vtable);
9811 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9812 mono_mb_emit_byte (mb, CEE_LDIND_I);
9815 mono_mb_emit_ldloc (mb, uiid);
9816 mono_mb_emit_icon (mb, 3);
9817 mono_mb_emit_byte (mb, CEE_SHR_UN);
9819 /*vt->interface_bitmap [(uiid) >> 3]*/
9820 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9821 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9823 /*(1 << ((uiid)&7)))*/
9824 mono_mb_emit_icon (mb, 1);
9825 mono_mb_emit_ldloc (mb, uiid);
9826 mono_mb_emit_icon (mb, 7);
9827 mono_mb_emit_byte (mb, CEE_AND);
9828 mono_mb_emit_byte (mb, CEE_SHL);
9830 /*bitwise and the whole thing*/
9831 mono_mb_emit_byte (mb, CEE_AND);
9832 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9835 mono_mb_patch_branch (mb, b1);
9836 mono_mb_emit_ldloc (mb, array_slot_addr);
9837 mono_mb_emit_ldarg (mb, 2);
9838 mono_mb_emit_byte (mb, CEE_STIND_REF);
9839 mono_mb_emit_byte (mb, CEE_RET);
9842 mono_mb_patch_branch (mb, b2);
9843 mono_mb_patch_branch (mb, b3);
9844 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9848 mono_mb_emit_ldarg (mb, 0);
9849 mono_mb_emit_ldarg (mb, 1);
9850 mono_mb_emit_ldarg (mb, 2);
9851 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9852 mono_mb_emit_byte (mb, CEE_RET);
9855 #endif /* DISABLE_JIT */
9856 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9857 info->d.virtual_stelemref.kind = kind;
9858 res = mono_mb_create (mb, signature, 4, info);
9859 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9861 mono_marshal_lock ();
9862 if (!cached_methods [kind]) {
9863 cached_methods [kind] = res;
9864 mono_marshal_unlock ();
9866 mono_marshal_unlock ();
9867 mono_free_method (res);
9871 return cached_methods [kind];
9875 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9879 g_assert (array_class->rank == 1);
9880 kind = get_virtual_stelemref_kind (array_class->element_class);
9882 return get_virtual_stelemref_wrapper (kind);
9886 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9891 *nwrappers = STELEMREF_KIND_COUNT;
9892 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9893 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9894 res [i] = get_virtual_stelemref_wrapper (i);
9899 * The wrapper info for the wrapper is a WrapperInfo structure.
9902 mono_marshal_get_stelemref (void)
9904 static MonoMethod* ret = NULL;
9905 MonoMethodSignature *sig;
9906 MonoMethodBuilder *mb;
9909 guint32 b1, b2, b3, b4;
9912 int array_slot_addr;
9917 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9920 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9922 /* void stelemref (void* array, int idx, void* value) */
9923 sig->ret = &mono_defaults.void_class->byval_arg;
9924 sig->params [0] = &mono_defaults.object_class->byval_arg;
9925 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9926 sig->params [2] = &mono_defaults.object_class->byval_arg;
9929 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9930 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9931 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9935 <ldelema (bound check)>
9939 aklass = array->vtable->klass->element_class;
9940 vklass = value->vtable->klass;
9942 if (vklass->idepth < aklass->idepth)
9945 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9949 *array_slot_addr = value;
9953 if (mono_object_isinst (value, aklass))
9956 throw new ArrayTypeMismatchException ();
9959 /* ldelema (implicit bound check) */
9960 mono_mb_emit_ldarg (mb, 0);
9961 mono_mb_emit_ldarg (mb, 1);
9962 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9963 mono_mb_emit_stloc (mb, array_slot_addr);
9965 /* if (!value) goto do_store */
9966 mono_mb_emit_ldarg (mb, 2);
9967 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9969 /* aklass = array->vtable->klass->element_class */
9970 mono_mb_emit_ldarg (mb, 0);
9971 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9972 mono_mb_emit_byte (mb, CEE_LDIND_I);
9973 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9974 mono_mb_emit_byte (mb, CEE_LDIND_I);
9975 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9976 mono_mb_emit_byte (mb, CEE_LDIND_I);
9977 mono_mb_emit_stloc (mb, aklass);
9979 /* vklass = value->vtable->klass */
9980 mono_mb_emit_ldarg (mb, 2);
9981 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9982 mono_mb_emit_byte (mb, CEE_LDIND_I);
9983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9984 mono_mb_emit_byte (mb, CEE_LDIND_I);
9985 mono_mb_emit_stloc (mb, vklass);
9987 /* if (vklass->idepth < aklass->idepth) goto failue */
9988 mono_mb_emit_ldloc (mb, vklass);
9989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9990 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9992 mono_mb_emit_ldloc (mb, aklass);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9994 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9996 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9998 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9999 mono_mb_emit_ldloc (mb, vklass);
10000 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10001 mono_mb_emit_byte (mb, CEE_LDIND_I);
10003 mono_mb_emit_ldloc (mb, aklass);
10004 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10005 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10006 mono_mb_emit_icon (mb, 1);
10007 mono_mb_emit_byte (mb, CEE_SUB);
10008 mono_mb_emit_icon (mb, sizeof (void*));
10009 mono_mb_emit_byte (mb, CEE_MUL);
10010 mono_mb_emit_byte (mb, CEE_ADD);
10011 mono_mb_emit_byte (mb, CEE_LDIND_I);
10013 mono_mb_emit_ldloc (mb, aklass);
10015 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10017 copy_pos = mono_mb_get_label (mb);
10019 mono_mb_patch_branch (mb, b1);
10020 mono_mb_emit_ldloc (mb, array_slot_addr);
10021 mono_mb_emit_ldarg (mb, 2);
10022 mono_mb_emit_byte (mb, CEE_STIND_REF);
10024 mono_mb_emit_byte (mb, CEE_RET);
10027 mono_mb_patch_branch (mb, b2);
10028 mono_mb_patch_branch (mb, b3);
10030 mono_mb_emit_ldarg (mb, 2);
10031 mono_mb_emit_ldloc (mb, aklass);
10032 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10034 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10035 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10036 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10038 mono_mb_emit_byte (mb, CEE_RET);
10040 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10041 ret = mono_mb_create (mb, sig, 4, info);
10048 * mono_marshal_get_gsharedvt_in_wrapper:
10050 * This wrapper handles calls from normal code to gsharedvt code.
10052 * The wrapper info for the wrapper is a WrapperInfo structure.
10055 mono_marshal_get_gsharedvt_in_wrapper (void)
10057 static MonoMethod* ret = NULL;
10058 MonoMethodSignature *sig;
10059 MonoMethodBuilder *mb;
10065 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10067 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10068 sig->ret = &mono_defaults.void_class->byval_arg;
10070 #ifndef DISABLE_JIT
10072 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10074 mono_mb_emit_byte (mb, CEE_RET);
10076 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10077 ret = mono_mb_create (mb, sig, 4, info);
10084 * mono_marshal_get_gsharedvt_out_wrapper:
10086 * This wrapper handles calls from gsharedvt code to normal code.
10088 * The wrapper info for the wrapper is a WrapperInfo structure.
10091 mono_marshal_get_gsharedvt_out_wrapper (void)
10093 static MonoMethod* ret = NULL;
10094 MonoMethodSignature *sig;
10095 MonoMethodBuilder *mb;
10101 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10103 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10104 sig->ret = &mono_defaults.void_class->byval_arg;
10106 #ifndef DISABLE_JIT
10108 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10110 mono_mb_emit_byte (mb, CEE_RET);
10112 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10113 ret = mono_mb_create (mb, sig, 4, info);
10122 MonoMethod *method;
10125 /* LOCKING: vars accessed under the marshal lock */
10126 static ArrayElemAddr *elem_addr_cache = NULL;
10127 static int elem_addr_cache_size = 0;
10128 static int elem_addr_cache_next = 0;
10131 * mono_marshal_get_array_address:
10132 * @rank: rank of the array type
10133 * @elem_size: size in bytes of an element of an array.
10135 * Returns a MonoMethod that implements the code to get the address
10136 * of an element in a multi-dimenasional array of @rank dimensions.
10137 * The returned method takes an array as the first argument and then
10138 * @rank indexes for the @rank dimensions.
10139 * If ELEM_SIZE is 0, read the array size from the array object.
10142 mono_marshal_get_array_address (int rank, int elem_size)
10145 MonoMethodBuilder *mb;
10146 MonoMethodSignature *sig;
10149 int i, bounds, ind, realidx;
10150 int branch_pos, *branch_positions;
10154 mono_marshal_lock ();
10155 for (i = 0; i < elem_addr_cache_next; ++i) {
10156 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10157 ret = elem_addr_cache [i].method;
10161 mono_marshal_unlock ();
10165 branch_positions = g_new0 (int, rank);
10167 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10169 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10170 sig->ret = &mono_defaults.int_class->byval_arg;
10171 sig->params [0] = &mono_defaults.object_class->byval_arg;
10172 for (i = 0; i < rank; ++i) {
10173 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10176 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10177 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10180 #ifndef DISABLE_JIT
10181 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10182 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10183 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10185 /* bounds = array->bounds; */
10186 mono_mb_emit_ldarg (mb, 0);
10187 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10188 mono_mb_emit_byte (mb, CEE_LDIND_I);
10189 mono_mb_emit_stloc (mb, bounds);
10191 /* ind is the overall element index, realidx is the partial index in a single dimension */
10192 /* ind = idx0 - bounds [0].lower_bound */
10193 mono_mb_emit_ldarg (mb, 1);
10194 mono_mb_emit_ldloc (mb, bounds);
10195 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10196 mono_mb_emit_byte (mb, CEE_ADD);
10197 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10198 mono_mb_emit_byte (mb, CEE_SUB);
10199 mono_mb_emit_stloc (mb, ind);
10200 /* if (ind >= bounds [0].length) goto exeception; */
10201 mono_mb_emit_ldloc (mb, ind);
10202 mono_mb_emit_ldloc (mb, bounds);
10203 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10204 mono_mb_emit_byte (mb, CEE_ADD);
10205 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10206 /* note that we use unsigned comparison */
10207 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10209 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10210 * We could also decide to ignore the passed elem_size and get it
10211 * from the array object, to reduce the number of methods we generate:
10212 * the additional cost is 3 memory loads and a non-immediate mul.
10214 for (i = 1; i < rank; ++i) {
10215 /* realidx = idxi - bounds [i].lower_bound */
10216 mono_mb_emit_ldarg (mb, 1 + i);
10217 mono_mb_emit_ldloc (mb, bounds);
10218 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10219 mono_mb_emit_byte (mb, CEE_ADD);
10220 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10221 mono_mb_emit_byte (mb, CEE_SUB);
10222 mono_mb_emit_stloc (mb, realidx);
10223 /* if (realidx >= bounds [i].length) goto exeception; */
10224 mono_mb_emit_ldloc (mb, realidx);
10225 mono_mb_emit_ldloc (mb, bounds);
10226 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10227 mono_mb_emit_byte (mb, CEE_ADD);
10228 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10229 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10230 /* ind = ind * bounds [i].length + realidx */
10231 mono_mb_emit_ldloc (mb, ind);
10232 mono_mb_emit_ldloc (mb, bounds);
10233 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10234 mono_mb_emit_byte (mb, CEE_ADD);
10235 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10236 mono_mb_emit_byte (mb, CEE_MUL);
10237 mono_mb_emit_ldloc (mb, realidx);
10238 mono_mb_emit_byte (mb, CEE_ADD);
10239 mono_mb_emit_stloc (mb, ind);
10242 /* return array->vector + ind * element_size */
10243 mono_mb_emit_ldarg (mb, 0);
10244 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10245 mono_mb_emit_ldloc (mb, ind);
10247 mono_mb_emit_icon (mb, elem_size);
10249 /* Load arr->vtable->klass->sizes.element_class */
10250 mono_mb_emit_ldarg (mb, 0);
10251 mono_mb_emit_byte (mb, CEE_CONV_I);
10252 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10253 mono_mb_emit_byte (mb, CEE_ADD);
10254 mono_mb_emit_byte (mb, CEE_LDIND_I);
10255 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10256 mono_mb_emit_byte (mb, CEE_ADD);
10257 mono_mb_emit_byte (mb, CEE_LDIND_I);
10258 /* sizes is an union, so this reads sizes.element_size */
10259 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10260 mono_mb_emit_byte (mb, CEE_ADD);
10261 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10263 mono_mb_emit_byte (mb, CEE_MUL);
10264 mono_mb_emit_byte (mb, CEE_ADD);
10265 mono_mb_emit_byte (mb, CEE_RET);
10267 /* patch the branches to get here and throw */
10268 for (i = 1; i < rank; ++i) {
10269 mono_mb_patch_branch (mb, branch_positions [i]);
10271 mono_mb_patch_branch (mb, branch_pos);
10272 /* throw exception */
10273 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10275 g_free (branch_positions);
10276 #endif /* DISABLE_JIT */
10278 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10279 info->d.element_addr.rank = rank;
10280 info->d.element_addr.elem_size = elem_size;
10281 ret = mono_mb_create (mb, sig, 4, info);
10284 /* cache the result */
10286 mono_marshal_lock ();
10287 for (i = 0; i < elem_addr_cache_next; ++i) {
10288 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10289 /* FIXME: free ret */
10290 ret = elem_addr_cache [i].method;
10296 if (elem_addr_cache_next >= elem_addr_cache_size) {
10297 int new_size = elem_addr_cache_size + 4;
10298 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10299 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10300 g_free (elem_addr_cache);
10301 elem_addr_cache = new_array;
10302 elem_addr_cache_size = new_size;
10304 elem_addr_cache [elem_addr_cache_next].rank = rank;
10305 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10306 elem_addr_cache [elem_addr_cache_next].method = ret;
10307 elem_addr_cache_next ++;
10309 mono_marshal_unlock ();
10314 * mono_marshal_get_array_accessor_wrapper:
10316 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10319 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10321 MonoMethodSignature *sig;
10322 MonoMethodBuilder *mb;
10326 MonoGenericContext *ctx = NULL;
10327 MonoMethod *orig_method = NULL;
10328 MonoGenericContainer *container = NULL;
10332 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10333 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10334 * FIXME: Use generic methods.
10341 g_assert_not_reached ();
10343 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10344 if ((res = mono_marshal_find_in_cache (cache, method)))
10348 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10351 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10353 #ifndef DISABLE_JIT
10354 /* Call the method */
10356 mono_mb_emit_ldarg (mb, 0);
10357 for (i = 0; i < sig->param_count; i++)
10358 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10362 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10363 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10365 mono_mb_emit_managed_call (mb, method, NULL);
10367 mono_mb_emit_byte (mb, CEE_RET);
10370 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10371 info->d.array_accessor.method = method;
10375 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10376 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10378 res = mono_mb_create_and_cache_full (cache, method,
10379 mb, sig, sig->param_count + 16,
10388 mono_marshal_alloc (gulong size, MonoError *error)
10392 mono_error_init (error);
10395 res = CoTaskMemAlloc (size);
10397 res = g_try_malloc ((gulong)size);
10399 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10404 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10406 ves_icall_marshal_alloc (gulong size)
10409 void *ret = mono_marshal_alloc (size, &error);
10410 if (!mono_error_ok (&error)) {
10411 mono_error_set_pending_exception (&error);
10419 mono_marshal_free (gpointer ptr)
10422 CoTaskMemFree (ptr);
10429 mono_marshal_free_array (gpointer *ptr, int size)
10436 for (i = 0; i < size; i++)
10442 mono_marshal_string_to_utf16 (MonoString *s)
10444 return s ? mono_string_chars (s) : NULL;
10447 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10449 mono_marshal_string_to_utf16_copy (MonoString *s)
10455 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10456 if (!mono_error_ok (&error)) {
10457 mono_error_set_pending_exception (&error);
10460 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10461 res [mono_string_length (s)] = 0;
10467 * mono_marshal_set_last_error:
10469 * This function is invoked to set the last error value from a P/Invoke call
10470 * which has SetLastError set.
10473 mono_marshal_set_last_error (void)
10476 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10478 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10483 mono_marshal_set_last_error_windows (int error)
10486 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10491 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10492 gpointer dest, gint32 length)
10497 MONO_CHECK_ARG_NULL (src,);
10498 MONO_CHECK_ARG_NULL (dest,);
10500 if (src->obj.vtable->klass->rank != 1) {
10501 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10504 if (start_index < 0) {
10505 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10509 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10512 if (start_index + length > mono_array_length (src)) {
10513 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10517 element_size = mono_array_element_size (src->obj.vtable->klass);
10519 /* no references should be involved */
10520 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10522 memcpy (dest, source_addr, length * element_size);
10526 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10527 MonoArray *dest, gint32 length)
10532 MONO_CHECK_ARG_NULL (src,);
10533 MONO_CHECK_ARG_NULL (dest,);
10535 if (dest->obj.vtable->klass->rank != 1) {
10536 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10539 if (start_index < 0) {
10540 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10544 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10547 if (start_index + length > mono_array_length (dest)) {
10548 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10551 element_size = mono_array_element_size (dest->obj.vtable->klass);
10553 /* no references should be involved */
10554 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10556 memcpy (dest_addr, src, length * element_size);
10560 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10565 return mono_string_new (mono_domain_get (), ptr);
10569 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10572 MonoString *result = NULL;
10573 mono_error_init (&error);
10575 mono_error_set_argument_null (&error, "ptr", "");
10577 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10578 mono_error_set_pending_exception (&error);
10583 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10586 MonoString *res = NULL;
10587 MonoDomain *domain = mono_domain_get ();
10597 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10598 if (!mono_error_ok (&error)) {
10599 mono_error_set_pending_exception (&error);
10606 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10609 MonoString *res = NULL;
10610 MonoDomain *domain = mono_domain_get ();
10612 mono_error_init (&error);
10616 mono_error_set_argument_null (&error, "ptr", "");
10618 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10621 if (!mono_error_ok (&error))
10622 mono_error_set_pending_exception (&error);
10627 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10629 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10633 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10639 MONO_CHECK_ARG_NULL (rtype, 0);
10641 type = rtype->type;
10642 klass = mono_class_from_mono_type (type);
10643 if (!mono_class_init (klass)) {
10644 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10648 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10650 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10651 return sizeof (gpointer);
10652 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10654 MonoException *exc;
10656 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10657 exc = mono_get_exception_argument ("t", msg);
10659 mono_set_pending_exception (exc);
10663 return mono_class_native_size (klass, NULL);
10667 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10670 MonoMethod *method;
10673 MONO_CHECK_ARG_NULL (obj,);
10674 MONO_CHECK_ARG_NULL (dst,);
10676 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10680 pa [2] = &delete_old;
10682 mono_runtime_invoke_checked (method, NULL, pa, &error);
10683 if (!mono_error_ok (&error))
10684 mono_error_set_pending_exception (&error);
10688 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10690 MonoMethod *method;
10693 mono_error_init (error);
10695 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10700 mono_runtime_invoke_checked (method, NULL, pa, error);
10704 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10709 MONO_CHECK_ARG_NULL (src,);
10710 MONO_CHECK_ARG_NULL (dst,);
10712 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10714 if (t->type == MONO_TYPE_VALUETYPE) {
10715 MonoException *exc;
10718 tmp = g_strdup_printf ("Destination is a boxed value type.");
10719 exc = mono_get_exception_argument ("dst", tmp);
10722 mono_set_pending_exception (exc);
10726 ptr_to_structure (src, dst, &error);
10727 if (!mono_error_ok (&error))
10728 mono_error_set_pending_exception (&error);
10732 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10736 MonoDomain *domain = mono_domain_get ();
10741 MONO_CHECK_ARG_NULL (type, NULL);
10743 klass = mono_class_from_mono_type (type->type);
10744 if (!mono_class_init (klass)) {
10745 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10749 res = mono_object_new_checked (domain, klass, &error);
10750 if (!mono_error_ok (&error)) {
10751 mono_error_set_pending_exception (&error);
10755 ptr_to_structure (src, res, &error);
10756 if (!mono_error_ok (&error)) {
10757 mono_error_set_pending_exception (&error);
10765 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10767 MonoMarshalType *info;
10770 int match_index = -1;
10772 MONO_CHECK_ARG_NULL (type, 0);
10773 MONO_CHECK_ARG_NULL (field_name, 0);
10775 fname = mono_string_to_utf8 (field_name);
10776 klass = mono_class_from_mono_type (type->type);
10777 if (!mono_class_init (klass)) {
10778 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10782 while (klass && match_index == -1) {
10783 MonoClassField* field;
10785 gpointer iter = NULL;
10786 while ((field = mono_class_get_fields (klass, &iter))) {
10787 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10789 if (!strcmp (fname, mono_field_get_name (field))) {
10796 if (match_index == -1)
10797 klass = klass->parent;
10802 if(match_index == -1) {
10803 MonoException* exc;
10806 /* Get back original class instance */
10807 klass = mono_class_from_mono_type (type->type);
10809 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10810 exc = mono_get_exception_argument ("fieldName", tmp);
10813 mono_set_pending_exception ((MonoException*)exc);
10817 info = mono_marshal_load_type_info (klass);
10818 return info->fields [match_index].offset;
10822 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10827 tres = mono_string_to_utf8 (string);
10831 len = strlen (tres) + 1;
10832 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10833 memcpy (ret, tres, len);
10838 return mono_string_to_utf8 (string);
10843 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10845 if (string == NULL)
10848 #ifdef TARGET_WIN32
10849 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10850 ((mono_string_length (string) + 1) * 2);
10852 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10854 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10855 res [mono_string_length (string)] = 0;
10861 mono_struct_delete_old (MonoClass *klass, char *ptr)
10863 MonoMarshalType *info;
10866 info = mono_marshal_load_type_info (klass);
10868 for (i = 0; i < info->num_fields; i++) {
10869 MonoMarshalConv conv;
10870 MonoType *ftype = info->fields [i].field->type;
10873 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10876 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10877 klass->unicode, &conv);
10879 cpos = ptr + info->fields [i].offset;
10882 case MONO_MARSHAL_CONV_NONE:
10883 if (MONO_TYPE_ISSTRUCT (ftype)) {
10884 mono_struct_delete_old (ftype->data.klass, cpos);
10888 case MONO_MARSHAL_CONV_STR_LPWSTR:
10889 /* We assume this field points inside a MonoString */
10891 case MONO_MARSHAL_CONV_STR_LPTSTR:
10892 #ifdef TARGET_WIN32
10893 /* We assume this field points inside a MonoString
10897 case MONO_MARSHAL_CONV_STR_LPSTR:
10898 case MONO_MARSHAL_CONV_STR_BSTR:
10899 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10900 case MONO_MARSHAL_CONV_STR_TBSTR:
10901 mono_marshal_free (*(gpointer *)cpos);
10911 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10915 MONO_CHECK_ARG_NULL (src,);
10916 MONO_CHECK_ARG_NULL (type,);
10918 klass = mono_class_from_mono_type (type->type);
10919 if (!mono_class_init (klass)) {
10920 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10924 mono_struct_delete_old (klass, (char *)src);
10928 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10931 size_t s = (size_t)size;
10934 /* This returns a valid pointer for size 0 on MS.NET */
10938 res = GlobalAlloc (GMEM_FIXED, s);
10940 res = g_try_malloc (s);
10943 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10951 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10954 size_t s = (size_t)size;
10957 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10962 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10964 res = g_try_realloc (ptr, s);
10967 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10975 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10985 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10990 res = CoTaskMemAlloc (size);
10992 if ((gulong)size == 0)
10993 /* This returns a valid pointer for size 0 on MS.NET */
10996 res = g_try_malloc ((gulong)size);
10999 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11006 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11009 CoTaskMemFree (ptr);
11016 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11021 res = CoTaskMemRealloc (ptr, size);
11023 res = g_try_realloc (ptr, (gulong)size);
11026 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11033 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11035 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11039 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11041 MonoClass *klass = mono_type_get_class (type->type);
11042 if (!mono_class_init (klass)) {
11043 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11047 return mono_ftnptr_to_delegate (klass, ftn);
11051 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11053 return mono_delegate_to_ftnptr (delegate);
11057 * mono_marshal_is_loading_type_info:
11059 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11063 mono_marshal_is_loading_type_info (MonoClass *klass)
11065 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11067 return g_slist_find (loads_list, klass) != NULL;
11071 * mono_marshal_load_type_info:
11073 * Initialize klass->marshal_info using information from metadata. This function can
11074 * recursively call itself, and the caller is responsible to avoid that by calling
11075 * mono_marshal_is_loading_type_info () beforehand.
11077 * LOCKING: Acquires the loader lock.
11080 mono_marshal_load_type_info (MonoClass* klass)
11083 guint32 native_size = 0, min_align = 1, packing;
11084 MonoMarshalType *info;
11085 MonoClassField* field;
11088 GSList *loads_list;
11090 g_assert (klass != NULL);
11092 if (klass->marshal_info)
11093 return klass->marshal_info;
11095 if (!klass->inited)
11096 mono_class_init (klass);
11098 if (klass->marshal_info)
11099 return klass->marshal_info;
11102 * This function can recursively call itself, so we keep the list of classes which are
11103 * under initialization in a TLS list.
11105 g_assert (!mono_marshal_is_loading_type_info (klass));
11106 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11107 loads_list = g_slist_prepend (loads_list, klass);
11108 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11111 while ((field = mono_class_get_fields (klass, &iter))) {
11112 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11114 if (mono_field_is_deleted (field))
11119 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11121 /* The mempool is protected by the loader lock */
11122 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11123 info->num_fields = count;
11125 /* Try to find a size for this type in metadata */
11126 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11128 if (klass->parent) {
11129 int parent_size = mono_class_native_size (klass->parent, NULL);
11131 /* Add parent size to real size */
11132 native_size += parent_size;
11133 info->native_size = parent_size;
11136 packing = klass->packing_size ? klass->packing_size : 8;
11139 while ((field = mono_class_get_fields (klass, &iter))) {
11143 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11146 if (mono_field_is_deleted (field))
11148 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11149 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11150 NULL, NULL, &info->fields [j].mspec);
11152 info->fields [j].field = field;
11154 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11155 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11156 /* This field is a hack inserted by MCS to empty structures */
11161 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11162 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11163 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11164 &align, TRUE, klass->unicode);
11165 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11166 min_align = MAX (align, min_align);
11167 info->fields [j].offset = info->native_size;
11168 info->fields [j].offset += align - 1;
11169 info->fields [j].offset &= ~(align - 1);
11170 info->native_size = info->fields [j].offset + size;
11172 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11173 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11174 &align, TRUE, klass->unicode);
11175 min_align = MAX (align, min_align);
11176 info->fields [j].offset = field->offset - sizeof (MonoObject);
11177 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11183 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11184 info->native_size = MAX (native_size, info->native_size);
11186 * If the provided Size is equal or larger than the calculated size, and there
11187 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11189 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11190 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11193 min_align = MIN (min_align, packing);
11197 if (info->native_size & (min_align - 1)) {
11198 info->native_size += min_align - 1;
11199 info->native_size &= ~(min_align - 1);
11202 info->min_align = min_align;
11204 /* Update the class's blittable info, if the layouts don't match */
11205 if (info->native_size != mono_class_value_size (klass, NULL))
11206 klass->blittable = FALSE;
11208 /* If this is an array type, ensure that we have element info */
11209 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11210 mono_marshal_load_type_info (klass->element_class);
11213 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11214 loads_list = g_slist_remove (loads_list, klass);
11215 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11217 mono_marshal_lock ();
11218 if (!klass->marshal_info) {
11219 /*We do double-checking locking on marshal_info */
11220 mono_memory_barrier ();
11221 klass->marshal_info = info;
11223 mono_marshal_unlock ();
11225 return klass->marshal_info;
11229 * mono_class_native_size:
11232 * Returns: the native size of an object instance (when marshaled
11233 * to unmanaged code)
11236 mono_class_native_size (MonoClass *klass, guint32 *align)
11238 if (!klass->marshal_info) {
11239 if (mono_marshal_is_loading_type_info (klass)) {
11244 mono_marshal_load_type_info (klass);
11249 *align = klass->marshal_info->min_align;
11251 return klass->marshal_info->native_size;
11255 * mono_type_native_stack_size:
11256 * @t: the type to return the size it uses on the stack
11258 * Returns: the number of bytes required to hold an instance of this
11259 * type on the native stack
11262 mono_type_native_stack_size (MonoType *t, guint32 *align)
11266 g_assert (t != NULL);
11272 *align = sizeof (gpointer);
11273 return sizeof (gpointer);
11277 case MONO_TYPE_BOOLEAN:
11278 case MONO_TYPE_CHAR:
11289 case MONO_TYPE_STRING:
11290 case MONO_TYPE_OBJECT:
11291 case MONO_TYPE_CLASS:
11292 case MONO_TYPE_SZARRAY:
11293 case MONO_TYPE_PTR:
11294 case MONO_TYPE_FNPTR:
11295 case MONO_TYPE_ARRAY:
11296 *align = sizeof (gpointer);
11297 return sizeof (gpointer);
11302 *align = MONO_ABI_ALIGNOF (double);
11306 *align = MONO_ABI_ALIGNOF (gint64);
11308 case MONO_TYPE_GENERICINST:
11309 if (!mono_type_generic_inst_is_valuetype (t)) {
11310 *align = sizeof (gpointer);
11311 return sizeof (gpointer);
11314 case MONO_TYPE_TYPEDBYREF:
11315 case MONO_TYPE_VALUETYPE: {
11317 MonoClass *klass = mono_class_from_mono_type (t);
11319 if (klass->enumtype)
11320 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11322 size = mono_class_native_size (klass, align);
11323 *align = *align + 3;
11333 g_error ("type 0x%02x unknown", t->type);
11339 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11340 gboolean as_field, gboolean unicode)
11342 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11345 switch (native_type) {
11346 case MONO_NATIVE_BOOLEAN:
11349 case MONO_NATIVE_I1:
11350 case MONO_NATIVE_U1:
11353 case MONO_NATIVE_I2:
11354 case MONO_NATIVE_U2:
11355 case MONO_NATIVE_VARIANTBOOL:
11358 case MONO_NATIVE_I4:
11359 case MONO_NATIVE_U4:
11360 case MONO_NATIVE_ERROR:
11363 case MONO_NATIVE_I8:
11364 case MONO_NATIVE_U8:
11365 *align = MONO_ABI_ALIGNOF (gint64);
11367 case MONO_NATIVE_R4:
11370 case MONO_NATIVE_R8:
11371 *align = MONO_ABI_ALIGNOF (double);
11373 case MONO_NATIVE_INT:
11374 case MONO_NATIVE_UINT:
11375 case MONO_NATIVE_LPSTR:
11376 case MONO_NATIVE_LPWSTR:
11377 case MONO_NATIVE_LPTSTR:
11378 case MONO_NATIVE_BSTR:
11379 case MONO_NATIVE_ANSIBSTR:
11380 case MONO_NATIVE_TBSTR:
11381 case MONO_NATIVE_LPARRAY:
11382 case MONO_NATIVE_SAFEARRAY:
11383 case MONO_NATIVE_IUNKNOWN:
11384 case MONO_NATIVE_IDISPATCH:
11385 case MONO_NATIVE_INTERFACE:
11386 case MONO_NATIVE_ASANY:
11387 case MONO_NATIVE_FUNC:
11388 case MONO_NATIVE_LPSTRUCT:
11389 *align = MONO_ABI_ALIGNOF (gpointer);
11390 return sizeof (gpointer);
11391 case MONO_NATIVE_STRUCT:
11392 klass = mono_class_from_mono_type (type);
11393 if (klass == mono_defaults.object_class &&
11394 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11398 return mono_class_native_size (klass, align);
11399 case MONO_NATIVE_BYVALTSTR: {
11400 int esize = unicode ? 2: 1;
11403 return mspec->data.array_data.num_elem * esize;
11405 case MONO_NATIVE_BYVALARRAY: {
11406 // FIXME: Have to consider ArraySubType
11408 klass = mono_class_from_mono_type (type);
11409 if (klass->element_class == mono_defaults.char_class) {
11410 esize = unicode ? 2 : 1;
11413 esize = mono_class_native_size (klass->element_class, align);
11416 return mspec->data.array_data.num_elem * esize;
11418 case MONO_NATIVE_CUSTOM:
11419 *align = sizeof (gpointer);
11420 return sizeof (gpointer);
11422 case MONO_NATIVE_CURRENCY:
11423 case MONO_NATIVE_VBBYREFSTR:
11425 g_error ("native type %02x not implemented", native_type);
11428 g_assert_not_reached ();
11432 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11434 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11443 t = &o->vtable->klass->byval_arg;
11447 case MONO_TYPE_PTR:
11450 case MONO_TYPE_BOOLEAN:
11453 case MONO_TYPE_CHAR:
11458 return mono_object_unbox (o);
11460 case MONO_TYPE_STRING:
11461 switch (string_encoding) {
11462 case MONO_NATIVE_LPWSTR:
11463 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11465 case MONO_NATIVE_LPSTR:
11466 return mono_string_to_lpstr ((MonoString*)o);
11469 g_warning ("marshaling conversion %d not implemented", string_encoding);
11470 g_assert_not_reached ();
11473 case MONO_TYPE_CLASS:
11474 case MONO_TYPE_VALUETYPE: {
11475 MonoMethod *method;
11478 MonoBoolean delete_old = FALSE;
11480 klass = t->data.klass;
11482 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11485 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11486 klass->blittable || klass->enumtype))
11487 return mono_object_unbox (o);
11489 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11490 if (!mono_error_ok (&error)) {
11491 mono_error_set_pending_exception (&error);
11495 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11496 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11500 pa [2] = &delete_old;
11502 mono_runtime_invoke_checked (method, NULL, pa, &error);
11503 if (!mono_error_ok (&error)) {
11504 mono_error_set_pending_exception (&error);
11514 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11518 /* This is a JIT icall, it sets the pending exception */
11520 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11529 t = &o->vtable->klass->byval_arg;
11531 case MONO_TYPE_STRING:
11532 switch (string_encoding) {
11533 case MONO_NATIVE_LPWSTR:
11534 case MONO_NATIVE_LPSTR:
11535 mono_marshal_free (ptr);
11538 g_warning ("marshaling conversion %d not implemented", string_encoding);
11539 g_assert_not_reached ();
11542 case MONO_TYPE_CLASS:
11543 case MONO_TYPE_VALUETYPE: {
11544 klass = t->data.klass;
11546 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11547 klass->blittable || klass->enumtype))
11550 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11551 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11557 mono_runtime_invoke_checked (method, NULL, pa, &error);
11558 if (!mono_error_ok (&error)) {
11559 mono_error_set_pending_exception (&error);
11564 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11565 mono_struct_delete_old (klass, (char *)ptr);
11568 mono_marshal_free (ptr);
11577 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11579 MonoMethodSignature *sig, *csig;
11580 MonoMethodBuilder *mb;
11585 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11586 mb->method->slot = -1;
11588 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11589 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11591 sig = mono_method_signature (method);
11592 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11593 csig->generic_param_count = 0;
11595 #ifndef DISABLE_JIT
11596 mono_mb_emit_ldarg (mb, 0);
11597 for (i = 0; i < csig->param_count; i++)
11598 mono_mb_emit_ldarg (mb, i + 1);
11599 mono_mb_emit_managed_call (mb, method, NULL);
11600 mono_mb_emit_byte (mb, CEE_RET);
11602 /* We can corlib internal methods */
11603 mb->skip_visibility = TRUE;
11605 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11606 info->d.generic_array_helper.method = method;
11607 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11615 * The mono_win32_compat_* functions are implementations of inline
11616 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11617 * although not exported by kernel32.
11619 * We map the appropiate kernel32 entries to these functions using
11620 * dllmaps declared in the global etc/mono/config.
11624 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11626 if (!dest || !source)
11629 memcpy (dest, source, length);
11633 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11635 memset (dest, fill, length);
11639 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11641 if (!dest || !source)
11644 memmove (dest, source, length);
11648 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11650 memset (dest, 0, length);
11654 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11659 for (i = 0; i < len; ++i)
11663 g_assert (i < len);
11666 while (byte && !(byte & 1))
11668 g_assert (byte == 1);
11671 *bitmask = buf [i];
11675 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11677 MonoMethodBuilder *mb;
11678 MonoMethodSignature *sig, *csig;
11679 MonoExceptionClause *clause;
11684 int i, param_count, sig_size, pos_leave;
11688 // FIXME: we need to store the exception into a MonoHandle
11689 g_assert (!mono_threads_is_coop_enabled ());
11691 klass = method->klass;
11692 image = method->klass->image;
11694 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11696 if ((res = mono_marshal_find_in_cache (cache, method)))
11699 sig = mono_method_signature (method);
11700 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11702 /* add "this" and exception param */
11703 param_count = sig->param_count + sig->hasthis + 1;
11705 /* dup & extend signature */
11706 csig = mono_metadata_signature_alloc (image, param_count);
11707 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11708 memcpy (csig, sig, sig_size);
11709 csig->param_count = param_count;
11712 csig->call_convention = MONO_CALL_DEFAULT;
11714 if (sig->hasthis) {
11716 csig->params [0] = &klass->byval_arg;
11717 /* move params up by one */
11718 for (i = 0; i < sig->param_count; i++)
11719 csig->params [i + 1] = sig->params [i];
11722 /* setup exception param as byref+[out] */
11723 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11724 &mono_defaults.exception_class->byval_arg);
11725 csig->params [param_count - 1]->byref = 1;
11726 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11728 /* convert struct return to object */
11729 if (MONO_TYPE_ISSTRUCT (sig->ret))
11730 csig->ret = &mono_defaults.object_class->byval_arg;
11732 #ifndef DISABLE_JIT
11733 /* local 0 (temp for exception object) */
11734 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11736 /* local 1 (temp for result) */
11737 if (!MONO_TYPE_IS_VOID (sig->ret))
11738 mono_mb_add_local (mb, sig->ret);
11740 /* clear exception arg */
11741 mono_mb_emit_ldarg (mb, param_count - 1);
11742 mono_mb_emit_byte (mb, CEE_LDNULL);
11743 mono_mb_emit_byte (mb, CEE_STIND_REF);
11746 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11747 clause->try_offset = mono_mb_get_label (mb);
11749 /* push method's args */
11750 for (i = 0; i < param_count - 1; i++) {
11754 mono_mb_emit_ldarg (mb, i);
11756 /* get the byval type of the param */
11757 klass = mono_class_from_mono_type (csig->params [i]);
11758 type = &klass->byval_arg;
11760 /* unbox struct args */
11761 if (MONO_TYPE_ISSTRUCT (type)) {
11762 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11764 /* byref args & and the "this" arg must remain a ptr.
11765 Otherwise make a copy of the value type */
11766 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11767 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11769 csig->params [i] = &mono_defaults.object_class->byval_arg;
11774 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11775 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11777 mono_mb_emit_op (mb, CEE_CALL, method);
11779 /* save result at local 1 */
11780 if (!MONO_TYPE_IS_VOID (sig->ret))
11781 mono_mb_emit_stloc (mb, 1);
11783 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11786 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11787 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11788 clause->data.catch_class = mono_defaults.object_class;
11790 clause->handler_offset = mono_mb_get_label (mb);
11792 /* store exception at local 0 */
11793 mono_mb_emit_stloc (mb, 0);
11794 mono_mb_emit_ldarg (mb, param_count - 1);
11795 mono_mb_emit_ldloc (mb, 0);
11796 mono_mb_emit_byte (mb, CEE_STIND_REF);
11797 mono_mb_emit_branch (mb, CEE_LEAVE);
11799 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11801 mono_mb_set_clauses (mb, 1, clause);
11803 mono_mb_patch_branch (mb, pos_leave);
11806 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11807 mono_mb_emit_ldloc (mb, 1);
11809 /* box the return value */
11810 if (MONO_TYPE_ISSTRUCT (sig->ret))
11811 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11814 mono_mb_emit_byte (mb, CEE_RET);
11817 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11824 * mono_marshal_free_dynamic_wrappers:
11826 * Free wrappers of the dynamic method METHOD.
11829 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11831 MonoImage *image = method->klass->image;
11833 g_assert (method_is_dynamic (method));
11835 /* This could be called during shutdown */
11836 if (marshal_mutex_initialized)
11837 mono_marshal_lock ();
11839 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11840 * they could be shared with other methods ?
11842 if (image->wrapper_caches.runtime_invoke_direct_cache)
11843 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11844 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11845 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11846 // FIXME: Need to clear the caches in other images as well
11847 if (image->delegate_bound_static_invoke_cache)
11848 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11850 if (marshal_mutex_initialized)
11851 mono_marshal_unlock ();
11855 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11857 g_assert (ftnptr_eh_callback);
11858 ftnptr_eh_callback (gchandle);
11862 ftnptr_eh_callback_default (guint32 gchandle)
11864 MonoException *exc;
11865 gpointer stackdata;
11867 g_assert (gchandle >= 0);
11869 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11871 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11873 mono_gchandle_free (gchandle);
11875 mono_raise_exception (exc);
11879 * mono_install_ftnptr_eh_callback:
11881 * Install a callback that should be called when there is a managed exception
11882 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11883 * managed exception to a native exception, to properly unwind the native
11884 * stack; this native exception will then be converted back to a managed
11885 * exception in their managed-to-native wrapper.
11888 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11890 ftnptr_eh_callback = callback;