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 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
93 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
96 mono_struct_delete_old (MonoClass *klass, char *ptr);
99 mono_marshal_string_to_utf16 (MonoString *s);
102 mono_marshal_string_to_utf16_copy (MonoString *s);
105 mono_string_to_lpstr (MonoString *string_obj);
107 static MonoStringBuilder *
108 mono_string_utf8_to_builder2 (char *text);
110 static MonoStringBuilder *
111 mono_string_utf16_to_builder2 (gunichar2 *text);
114 mono_string_new_len_wrapper (const char *text, guint length);
117 mono_string_from_byvalstr (const char *data, int len);
120 mono_string_from_byvalwstr (gunichar2 *data, int len);
123 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
126 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
129 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
132 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
134 static MonoAsyncResult *
135 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
138 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
141 mono_marshal_set_last_error_windows (int error);
144 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
146 static void init_safe_handle (void);
149 ves_icall_marshal_alloc (gulong size);
152 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
155 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
158 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
161 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
164 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
167 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
170 mono_delegate_to_ftnptr (MonoDelegate *delegate);
173 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
176 mono_array_to_savearray (MonoArray *array);
179 mono_array_to_lparray (MonoArray *array);
182 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
185 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
188 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
191 mono_array_to_savearray (MonoArray *array);
194 mono_array_to_lparray (MonoArray *array);
197 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
200 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
202 /* Lazy class loading functions */
203 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
204 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
205 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
206 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
208 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
209 static MonoMethod *sh_dangerous_add_ref;
210 static MonoMethod *sh_dangerous_release;
215 sh_dangerous_add_ref = mono_class_get_method_from_name (
216 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
217 sh_dangerous_release = mono_class_get_method_from_name (
218 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
222 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
224 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
226 mono_register_jit_icall (func, name, sig, no_wrapper);
230 mono_signature_no_pinvoke (MonoMethod *method)
232 MonoMethodSignature *sig = mono_method_signature (method);
234 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
235 sig->pinvoke = FALSE;
242 mono_marshal_init_tls (void)
244 mono_native_tls_alloc (&last_error_tls_id, NULL);
245 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
249 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
252 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
253 mono_error_set_pending_exception (&error);
258 mono_marshal_init (void)
260 static gboolean module_initialized = FALSE;
262 if (!module_initialized) {
263 module_initialized = TRUE;
264 mono_os_mutex_init_recursive (&marshal_mutex);
265 marshal_mutex_initialized = TRUE;
267 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
268 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
269 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
270 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
271 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
272 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
273 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
274 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
275 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
276 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
277 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
278 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
279 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
280 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
281 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
282 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
283 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
284 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
285 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
286 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
287 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
288 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
289 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
290 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
291 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
292 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
293 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
294 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
295 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
296 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
297 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
298 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
299 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
300 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
301 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
302 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
303 register_icall (g_free, "g_free", "void ptr", FALSE);
304 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
305 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
306 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
307 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
308 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
309 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
310 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
311 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
312 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
313 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
314 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
315 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
316 register_icall (mono_threads_prepare_blocking_unbalanced, "mono_threads_prepare_blocking_unbalanced", "ptr ptr", TRUE);
317 register_icall (mono_threads_finish_blocking_unbalanced, "mono_threads_finish_blocking_unbalanced", "void ptr ptr", TRUE);
319 mono_cominterop_init ();
320 mono_remoting_init ();
325 mono_marshal_cleanup (void)
327 mono_cominterop_cleanup ();
329 mono_native_tls_free (load_type_info_tls_id);
330 mono_native_tls_free (last_error_tls_id);
331 mono_os_mutex_destroy (&marshal_mutex);
332 marshal_mutex_initialized = FALSE;
336 mono_marshal_lock_internal (void)
338 mono_marshal_lock ();
342 mono_marshal_unlock_internal (void)
344 mono_marshal_unlock ();
347 /* This is a JIT icall, it sets the pending exception and return NULL on error */
349 mono_delegate_to_ftnptr (MonoDelegate *delegate)
352 MonoMethod *method, *wrapper;
354 uint32_t target_handle = 0;
359 if (delegate->delegate_trampoline)
360 return delegate->delegate_trampoline;
362 klass = ((MonoObject *)delegate)->vtable->klass;
363 g_assert (klass->delegate);
365 method = delegate->method;
366 if (delegate->method_is_virtual)
367 method = mono_object_get_virtual_method (delegate->target, method);
369 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
370 const char *exc_class, *exc_arg;
373 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
375 g_assert (exc_class);
376 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
382 if (delegate->target) {
383 /* Produce a location which can be embedded in JITted code */
384 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
387 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
389 delegate->delegate_trampoline = mono_compile_method (wrapper);
391 // Add the delegate to the delegate hash table
392 delegate_hash_table_add (delegate);
394 /* when the object is collected, collect the dynamic method, too */
395 mono_object_register_finalizer ((MonoObject*)delegate, &error);
396 if (!mono_error_ok (&error)) {
397 mono_error_set_pending_exception (&error);
401 return delegate->delegate_trampoline;
405 * this hash table maps from a delegate trampoline object to a weak reference
406 * of the delegate. As an optimizations with a non-moving GC we store the
407 * object pointer itself, otherwise we use a GC handle.
409 static GHashTable *delegate_hash_table;
412 delegate_hash_table_new (void) {
413 return g_hash_table_new (NULL, NULL);
417 delegate_hash_table_remove (MonoDelegate *d)
419 guint32 gchandle = 0;
421 mono_marshal_lock ();
422 if (delegate_hash_table == NULL)
423 delegate_hash_table = delegate_hash_table_new ();
424 if (mono_gc_is_moving ())
425 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
426 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
427 mono_marshal_unlock ();
428 if (gchandle && mono_gc_is_moving ())
429 mono_gchandle_free (gchandle);
433 delegate_hash_table_add (MonoDelegate *d)
436 guint32 old_gchandle;
438 mono_marshal_lock ();
439 if (delegate_hash_table == NULL)
440 delegate_hash_table = delegate_hash_table_new ();
441 if (mono_gc_is_moving ()) {
442 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
443 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
444 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
446 mono_gchandle_free (old_gchandle);
448 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
450 mono_marshal_unlock ();
454 * mono_marshal_use_aot_wrappers:
456 * Instructs this module to use AOT compatible wrappers.
459 mono_marshal_use_aot_wrappers (gboolean use)
461 use_aot_wrappers = use;
465 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
468 MonoCustomAttrInfo *cinfo;
469 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
471 /* The attribute is only available in Net 2.0 */
472 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
474 * The pinvoke attributes are stored in a real custom attribute so we have to
477 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
478 if (!mono_error_ok (&error)) {
479 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
480 mono_error_cleanup (&error);
482 if (cinfo && !mono_runtime_get_no_exec ()) {
483 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
485 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
487 if (!mono_error_ok (&error)) {
488 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
489 mono_error_cleanup (&error);
493 mono_custom_attrs_free (cinfo);
498 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
500 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
509 mono_marshal_lock ();
510 if (delegate_hash_table == NULL)
511 delegate_hash_table = delegate_hash_table_new ();
513 if (mono_gc_is_moving ()) {
514 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
515 mono_marshal_unlock ();
517 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
521 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
522 mono_marshal_unlock ();
525 /* This is a native function, so construct a delegate for it */
526 MonoMethodSignature *sig;
528 MonoMarshalSpec **mspecs;
529 MonoMethod *invoke = mono_get_delegate_invoke (klass);
530 MonoMethodPInvoke piinfo;
531 MonoObject *this_obj;
534 if (use_aot_wrappers) {
535 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
536 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
537 if (!is_ok (&error)) {
538 mono_error_set_pending_exception (&error);
542 memset (&piinfo, 0, sizeof (piinfo));
543 parse_unmanaged_function_pointer_attr (klass, &piinfo);
545 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
546 mono_method_get_marshal_info (invoke, mspecs);
547 /* Freed below so don't alloc from mempool */
548 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
551 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
554 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
556 mono_metadata_free_marshal_spec (mspecs [i]);
561 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
562 if (!mono_error_ok (&error)) {
563 mono_error_set_pending_exception (&error);
566 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
569 if (d->object.vtable->domain != mono_domain_get ()) {
570 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
578 mono_delegate_free_ftnptr (MonoDelegate *delegate)
583 delegate_hash_table_remove (delegate);
585 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
587 if (!delegate->target) {
588 /* The wrapper method is shared between delegates -> no need to free it */
597 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
600 method = mono_jit_info_get_method (ji);
601 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
603 /*the target gchandle is the first entry after size and the wrapper itself.*/
604 gchandle = GPOINTER_TO_UINT (method_data [2]);
607 mono_gchandle_free (gchandle);
609 mono_runtime_free_method (mono_object_domain (delegate), method);
613 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
615 mono_string_from_byvalstr (const char *data, int max_len)
618 MonoDomain *domain = mono_domain_get ();
624 while (len < max_len - 1 && data [len])
627 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
628 mono_error_set_pending_exception (&error);
632 /* This is a JIT icall, it sets the pending exception and return NULL on error */
634 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
637 MonoString *res = NULL;
638 MonoDomain *domain = mono_domain_get ();
644 while (data [len]) len++;
646 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
647 if (!mono_error_ok (&error)) {
648 mono_error_set_pending_exception (&error);
655 mono_array_to_savearray (MonoArray *array)
660 g_assert_not_reached ();
665 mono_array_to_lparray (MonoArray *array)
668 gpointer *nativeArray = NULL;
669 int nativeArraySize = 0;
679 klass = array->obj.vtable->klass;
681 switch (klass->element_class->byval_arg.type) {
683 g_assert_not_reached ();
685 case MONO_TYPE_CLASS:
686 nativeArraySize = array->max_length;
687 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
688 for(i = 0; i < nativeArraySize; ++i)
689 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
692 case MONO_TYPE_BOOLEAN:
705 case MONO_TYPE_VALUETYPE:
709 case MONO_TYPE_GENERICINST:
710 case MONO_TYPE_OBJECT:
711 case MONO_TYPE_ARRAY:
712 case MONO_TYPE_SZARRAY:
713 case MONO_TYPE_STRING:
715 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
716 g_assert_not_reached ();
719 return array->vector;
723 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
734 klass = array->obj.vtable->klass;
736 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
737 for(i = 0; i < array->max_length; ++i)
738 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
745 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
747 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
749 if (elclass == mono_defaults.byte_class) {
750 GError *error = NULL;
754 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
757 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
761 g_error_free (error);
764 g_assert_not_reached ();
768 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
770 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
773 /* This is a JIT icall, it sets the pending exception and returns on error */
775 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
777 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
779 if (elclass == mono_defaults.byte_class) {
781 GError *error = NULL;
783 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
785 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
786 g_error_free (error);
790 memcpy (native_arr, as, MIN (strlen (as), elnum));
793 g_assert_not_reached ();
798 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
800 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
803 static MonoStringBuilder *
804 mono_string_builder_new (int starting_string_length)
806 static MonoClass *string_builder_class;
807 static MonoMethod *sb_ctor;
808 static void *args [1];
811 int initial_len = starting_string_length;
817 MonoMethodDesc *desc;
820 string_builder_class = mono_class_get_string_builder_class ();
821 g_assert (string_builder_class);
822 desc = mono_method_desc_new (":.ctor(int)", FALSE);
823 m = mono_method_desc_search_in_class (desc, string_builder_class);
825 mono_method_desc_free (desc);
826 mono_memory_barrier ();
830 // We make a new array in the _to_builder function, so this
831 // array will always be garbage collected.
832 args [0] = &initial_len;
834 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
835 mono_error_assert_ok (&error);
838 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
839 g_assert (exc == NULL);
840 mono_error_assert_ok (&error);
842 g_assert (sb->chunkChars->max_length >= initial_len);
848 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
850 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
851 gunichar2 *charSrc = (gunichar2 *)text;
852 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
854 sb->chunkLength = string_len;
860 mono_string_utf16_to_builder2 (gunichar2 *text)
866 for (len = 0; text [len] != 0; ++len);
868 MonoStringBuilder *sb = mono_string_builder_new (len);
869 mono_string_utf16_to_builder (sb, text);
875 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
880 int len = strlen (text);
881 if (len > mono_string_builder_capacity (sb))
882 len = mono_string_builder_capacity (sb);
884 GError *error = NULL;
886 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
889 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
890 mono_string_utf16_to_builder_copy (sb, ut, copied);
892 g_error_free (error);
898 mono_string_utf8_to_builder2 (char *text)
903 int len = strlen (text);
904 MonoStringBuilder *sb = mono_string_builder_new (len);
905 mono_string_utf8_to_builder (sb, text);
912 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
918 for (len = 0; text [len] != 0; ++len);
920 if (len > mono_string_builder_capacity (sb))
921 len = mono_string_builder_capacity (sb);
923 mono_string_utf16_to_builder_copy (sb, text, len);
927 * mono_string_builder_to_utf8:
928 * @sb: the string builder
930 * Converts to utf8 the contents of the MonoStringBuilder.
932 * Returns: a utf8 string with the contents of the StringBuilder.
934 * The return value must be released with g_free.
936 * This is a JIT icall, it sets the pending exception and returns NULL on error.
939 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
942 GError *gerror = NULL;
947 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
949 guint str_len = mono_string_builder_string_length (sb);
951 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
954 g_error_free (gerror);
956 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
959 guint len = mono_string_builder_capacity (sb) + 1;
960 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
961 if (!mono_error_ok (&error)) {
964 mono_error_set_pending_exception (&error);
968 g_assert (str_len < len);
969 memcpy (res, tmp, str_len * sizeof (gchar));
979 * mono_string_builder_to_utf16:
980 * @sb: the string builder
982 * Converts to utf16 the contents of the MonoStringBuilder.
984 * Returns: a utf16 string with the contents of the StringBuilder.
986 * The return value must not be freed.
987 * This is a JIT icall, it sets the pending exception and returns NULL on error.
990 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
997 g_assert (sb->chunkChars);
999 guint len = mono_string_builder_capacity (sb);
1004 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1005 if (!mono_error_ok (&error)) {
1006 mono_error_set_pending_exception (&error);
1015 MonoStringBuilder* chunk = sb;
1017 if (chunk->chunkLength > 0) {
1018 // Check that we will not overrun our boundaries.
1019 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1021 if (chunk->chunkLength <= len) {
1022 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1024 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1027 len -= chunk->chunkLength;
1029 chunk = chunk->chunkPrevious;
1030 } while (chunk != NULL);
1035 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1037 mono_string_to_lpstr (MonoString *s)
1042 GError *error = NULL;
1048 as = CoTaskMemAlloc (1);
1053 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1055 MonoException *exc = mono_get_exception_argument ("string", error->message);
1056 g_error_free (error);
1057 mono_set_pending_exception (exc);
1060 as = CoTaskMemAlloc (len + 1);
1061 memcpy (as, tmp, len + 1);
1066 return mono_string_to_utf8 (s);
1071 mono_string_to_ansibstr (MonoString *string_obj)
1073 g_error ("UnmanagedMarshal.BStr is not implemented.");
1078 * mono_string_to_byvalstr:
1079 * @dst: Where to store the null-terminated utf8 decoded string.
1080 * @src: the MonoString to copy.
1081 * @size: the maximum number of bytes to copy.
1083 * Copies the MonoString pointed to by @src as a utf8 string
1084 * into @dst, it copies at most @size bytes into the destination.
1087 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1092 g_assert (dst != NULL);
1093 g_assert (size > 0);
1095 memset (dst, 0, size);
1099 s = mono_string_to_utf8 (src);
1100 len = MIN (size, strlen (s));
1103 memcpy (dst, s, len);
1108 * mono_string_to_byvalwstr:
1109 * @dst: Where to store the null-terminated utf16 decoded string.
1110 * @src: the MonoString to copy.
1111 * @size: the maximum number of bytes to copy.
1113 * Copies the MonoString pointed to by @src as a utf16 string into
1114 * @dst, it copies at most @size bytes into the destination (including
1115 * a terminating 16-bit zero terminator).
1118 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1122 g_assert (dst != NULL);
1123 g_assert (size > 1);
1126 memset (dst, 0, size * 2);
1130 len = MIN (size, (mono_string_length (src)));
1131 memcpy (dst, mono_string_chars (src), size * 2);
1132 if (size <= mono_string_length (src))
1134 *((gunichar2 *) dst + len) = 0;
1137 /* this is an icall, it sets the pending exception and returns NULL on error */
1139 mono_string_new_len_wrapper (const char *text, guint length)
1142 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1143 mono_error_set_pending_exception (&error);
1150 * mono_mb_emit_exception_marshal_directive:
1152 * This function assumes ownership of MSG, which should be malloc-ed.
1155 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1160 s = mono_image_strdup (mb->method->klass->image, msg);
1165 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1168 #endif /* !DISABLE_JIT */
1171 mono_type_to_ldind (MonoType *type)
1177 switch (type->type) {
1179 return CEE_LDIND_I1;
1181 case MONO_TYPE_BOOLEAN:
1182 return CEE_LDIND_U1;
1184 return CEE_LDIND_I2;
1186 case MONO_TYPE_CHAR:
1187 return CEE_LDIND_U2;
1189 return CEE_LDIND_I4;
1191 return CEE_LDIND_U4;
1195 case MONO_TYPE_FNPTR:
1197 case MONO_TYPE_CLASS:
1198 case MONO_TYPE_STRING:
1199 case MONO_TYPE_OBJECT:
1200 case MONO_TYPE_SZARRAY:
1201 case MONO_TYPE_ARRAY:
1202 return CEE_LDIND_REF;
1205 return CEE_LDIND_I8;
1207 return CEE_LDIND_R4;
1209 return CEE_LDIND_R8;
1210 case MONO_TYPE_VALUETYPE:
1211 if (type->data.klass->enumtype) {
1212 type = mono_class_enum_basetype (type->data.klass);
1216 case MONO_TYPE_TYPEDBYREF:
1218 case MONO_TYPE_GENERICINST:
1219 type = &type->data.generic_class->container_class->byval_arg;
1222 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1228 mono_type_to_stind (MonoType *type)
1231 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1235 switch (type->type) {
1238 case MONO_TYPE_BOOLEAN:
1239 return CEE_STIND_I1;
1242 case MONO_TYPE_CHAR:
1243 return CEE_STIND_I2;
1246 return CEE_STIND_I4;
1250 case MONO_TYPE_FNPTR:
1252 case MONO_TYPE_CLASS:
1253 case MONO_TYPE_STRING:
1254 case MONO_TYPE_OBJECT:
1255 case MONO_TYPE_SZARRAY:
1256 case MONO_TYPE_ARRAY:
1257 return CEE_STIND_REF;
1260 return CEE_STIND_I8;
1262 return CEE_STIND_R4;
1264 return CEE_STIND_R8;
1265 case MONO_TYPE_VALUETYPE:
1266 if (type->data.klass->enumtype) {
1267 type = mono_class_enum_basetype (type->data.klass);
1271 case MONO_TYPE_TYPEDBYREF:
1273 case MONO_TYPE_GENERICINST:
1274 type = &type->data.generic_class->container_class->byval_arg;
1277 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1285 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1288 case MONO_MARSHAL_CONV_BOOL_I4:
1289 mono_mb_emit_ldloc (mb, 1);
1290 mono_mb_emit_ldloc (mb, 0);
1291 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1292 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1293 mono_mb_emit_byte (mb, 3);
1294 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1295 mono_mb_emit_byte (mb, CEE_BR_S);
1296 mono_mb_emit_byte (mb, 1);
1297 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1298 mono_mb_emit_byte (mb, CEE_STIND_I1);
1300 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1304 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1305 mono_mb_emit_byte (mb, 3);
1306 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1307 mono_mb_emit_byte (mb, CEE_BR_S);
1308 mono_mb_emit_byte (mb, 1);
1309 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1310 mono_mb_emit_byte (mb, CEE_STIND_I1);
1312 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1313 MonoClass *eklass = NULL;
1316 if (type->type == MONO_TYPE_SZARRAY) {
1317 eklass = type->data.klass;
1319 g_assert_not_reached ();
1322 esize = mono_class_native_size (eklass, NULL);
1324 /* create a new array */
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1327 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1328 mono_mb_emit_byte (mb, CEE_STIND_REF);
1330 if (eklass->blittable) {
1331 /* copy the elements */
1332 mono_mb_emit_ldloc (mb, 1);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I);
1334 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1335 mono_mb_emit_byte (mb, CEE_ADD);
1336 mono_mb_emit_ldloc (mb, 0);
1337 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1338 mono_mb_emit_byte (mb, CEE_PREFIX1);
1339 mono_mb_emit_byte (mb, CEE_CPBLK);
1342 int array_var, src_var, dst_var, index_var;
1343 guint32 label2, label3;
1345 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1346 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1347 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1350 mono_mb_emit_ldloc (mb, 1);
1351 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1352 mono_mb_emit_stloc (mb, array_var);
1354 /* save the old src pointer */
1355 mono_mb_emit_ldloc (mb, 0);
1356 mono_mb_emit_stloc (mb, src_var);
1357 /* save the old dst pointer */
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_stloc (mb, dst_var);
1361 /* Emit marshalling loop */
1362 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1363 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1364 mono_mb_emit_stloc (mb, index_var);
1367 label2 = mono_mb_get_label (mb);
1368 mono_mb_emit_ldloc (mb, index_var);
1369 mono_mb_emit_ldloc (mb, array_var);
1370 mono_mb_emit_byte (mb, CEE_LDLEN);
1371 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1373 /* src is already set */
1376 mono_mb_emit_ldloc (mb, array_var);
1377 mono_mb_emit_ldloc (mb, index_var);
1378 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1379 mono_mb_emit_stloc (mb, 1);
1381 /* Do the conversion */
1382 emit_struct_conv (mb, eklass, TRUE);
1385 mono_mb_emit_add_to_local (mb, index_var, 1);
1387 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1389 mono_mb_patch_branch (mb, label3);
1391 /* restore the old src pointer */
1392 mono_mb_emit_ldloc (mb, src_var);
1393 mono_mb_emit_stloc (mb, 0);
1394 /* restore the old dst pointer */
1395 mono_mb_emit_ldloc (mb, dst_var);
1396 mono_mb_emit_stloc (mb, 1);
1400 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1401 MonoClass *eclass = mono_defaults.char_class;
1403 /* create a new array */
1404 mono_mb_emit_ldloc (mb, 1);
1405 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1406 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1407 mono_mb_emit_byte (mb, CEE_STIND_REF);
1409 mono_mb_emit_ldloc (mb, 1);
1410 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1411 mono_mb_emit_ldloc (mb, 0);
1412 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1413 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1416 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1417 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1418 mono_mb_emit_ldloc (mb, 1);
1419 mono_mb_emit_ldloc (mb, 0);
1420 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1421 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1423 mono_mb_emit_ldloc (mb, 1);
1424 mono_mb_emit_ldloc (mb, 0);
1425 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1430 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1431 mono_mb_emit_ldloc (mb, 1);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1434 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1436 mono_mb_emit_ldloc (mb, 1);
1437 mono_mb_emit_ldloc (mb, 0);
1438 mono_mb_emit_icall (mb, mono_string_from_utf16);
1440 mono_mb_emit_byte (mb, CEE_STIND_REF);
1442 case MONO_MARSHAL_CONV_STR_LPTSTR:
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_byte (mb, CEE_LDIND_I);
1447 mono_mb_emit_icall (mb, mono_string_from_utf16);
1449 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1451 mono_mb_emit_byte (mb, CEE_STIND_REF);
1453 case MONO_MARSHAL_CONV_STR_LPSTR:
1454 mono_mb_emit_ldloc (mb, 1);
1455 mono_mb_emit_ldloc (mb, 0);
1456 mono_mb_emit_byte (mb, CEE_LDIND_I);
1457 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1458 mono_mb_emit_byte (mb, CEE_STIND_REF);
1460 case MONO_MARSHAL_CONV_STR_LPWSTR:
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_byte (mb, CEE_LDIND_I);
1464 mono_mb_emit_icall (mb, mono_string_from_utf16);
1465 mono_mb_emit_byte (mb, CEE_STIND_REF);
1467 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1468 MonoClass *klass = mono_class_from_mono_type (type);
1469 int src_var, dst_var;
1471 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1472 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1474 /* *dst = new object */
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1477 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1478 mono_mb_emit_byte (mb, CEE_STIND_REF);
1480 /* save the old src pointer */
1481 mono_mb_emit_ldloc (mb, 0);
1482 mono_mb_emit_stloc (mb, src_var);
1483 /* save the old dst pointer */
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_stloc (mb, dst_var);
1487 /* dst = pointer to newly created object data */
1488 mono_mb_emit_ldloc (mb, 1);
1489 mono_mb_emit_byte (mb, CEE_LDIND_I);
1490 mono_mb_emit_icon (mb, sizeof (MonoObject));
1491 mono_mb_emit_byte (mb, CEE_ADD);
1492 mono_mb_emit_stloc (mb, 1);
1494 emit_struct_conv (mb, klass, TRUE);
1496 /* restore the old src pointer */
1497 mono_mb_emit_ldloc (mb, src_var);
1498 mono_mb_emit_stloc (mb, 0);
1499 /* restore the old dst pointer */
1500 mono_mb_emit_ldloc (mb, dst_var);
1501 mono_mb_emit_stloc (mb, 1);
1504 case MONO_MARSHAL_CONV_DEL_FTN: {
1505 MonoClass *klass = mono_class_from_mono_type (type);
1507 mono_mb_emit_ldloc (mb, 1);
1508 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1509 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1510 mono_mb_emit_ldloc (mb, 0);
1511 mono_mb_emit_byte (mb, CEE_LDIND_I);
1512 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1513 mono_mb_emit_byte (mb, CEE_STIND_REF);
1516 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1517 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1521 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1522 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1523 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1524 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1526 #endif /* DISABLE_COM */
1528 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1530 * Passing SafeHandles as ref does not allow the unmanaged code
1531 * to change the SafeHandle value. If the value is changed,
1532 * we should issue a diagnostic exception (NotSupportedException)
1533 * that informs the user that changes to handles in unmanaged code
1536 * Since we currently have no access to the original
1537 * SafeHandle that was used during the marshalling,
1538 * for now we just ignore this, and ignore/discard any
1539 * changes that might have happened to the handle.
1544 case MONO_MARSHAL_CONV_HANDLEREF: {
1546 * Passing HandleRefs in a struct that is ref()ed does not
1547 * copy the values back to the HandleRef
1552 case MONO_MARSHAL_CONV_STR_BSTR:
1553 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1554 case MONO_MARSHAL_CONV_STR_TBSTR:
1555 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1557 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1559 mono_mb_emit_exception_marshal_directive (mb, msg);
1566 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1569 if (!ind_store_type)
1570 ind_store_type = &dummy;
1571 *ind_store_type = CEE_STIND_I;
1573 case MONO_MARSHAL_CONV_STR_LPWSTR:
1574 return mono_marshal_string_to_utf16;
1575 case MONO_MARSHAL_CONV_LPWSTR_STR:
1576 *ind_store_type = CEE_STIND_REF;
1577 return mono_string_from_utf16;
1578 case MONO_MARSHAL_CONV_LPTSTR_STR:
1579 *ind_store_type = CEE_STIND_REF;
1580 return mono_string_new_wrapper;
1581 case MONO_MARSHAL_CONV_LPSTR_STR:
1582 *ind_store_type = CEE_STIND_REF;
1583 return mono_string_new_wrapper;
1584 case MONO_MARSHAL_CONV_STR_LPTSTR:
1586 return mono_marshal_string_to_utf16;
1588 return mono_string_to_lpstr;
1590 case MONO_MARSHAL_CONV_STR_LPSTR:
1591 return mono_string_to_lpstr;
1592 case MONO_MARSHAL_CONV_STR_BSTR:
1593 return mono_string_to_bstr;
1594 case MONO_MARSHAL_CONV_BSTR_STR:
1595 *ind_store_type = CEE_STIND_REF;
1596 return mono_string_from_bstr_icall;
1597 case MONO_MARSHAL_CONV_STR_TBSTR:
1598 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1599 return mono_string_to_ansibstr;
1600 case MONO_MARSHAL_CONV_SB_LPSTR:
1601 return mono_string_builder_to_utf8;
1602 case MONO_MARSHAL_CONV_SB_LPTSTR:
1604 return mono_string_builder_to_utf16;
1606 return mono_string_builder_to_utf8;
1608 case MONO_MARSHAL_CONV_SB_LPWSTR:
1609 return mono_string_builder_to_utf16;
1610 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1611 return mono_array_to_savearray;
1612 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1613 return mono_array_to_lparray;
1614 case MONO_MARSHAL_FREE_LPARRAY:
1615 return mono_free_lparray;
1616 case MONO_MARSHAL_CONV_DEL_FTN:
1617 return mono_delegate_to_ftnptr;
1618 case MONO_MARSHAL_CONV_FTN_DEL:
1619 *ind_store_type = CEE_STIND_REF;
1620 return mono_ftnptr_to_delegate;
1621 case MONO_MARSHAL_CONV_LPSTR_SB:
1622 *ind_store_type = CEE_STIND_REF;
1623 return mono_string_utf8_to_builder;
1624 case MONO_MARSHAL_CONV_LPTSTR_SB:
1625 *ind_store_type = CEE_STIND_REF;
1627 return mono_string_utf16_to_builder;
1629 return mono_string_utf8_to_builder;
1631 case MONO_MARSHAL_CONV_LPWSTR_SB:
1632 *ind_store_type = CEE_STIND_REF;
1633 return mono_string_utf16_to_builder;
1634 case MONO_MARSHAL_FREE_ARRAY:
1635 return mono_marshal_free_array;
1636 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1637 return mono_string_to_byvalstr;
1638 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1639 return mono_string_to_byvalwstr;
1641 g_assert_not_reached ();
1648 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1654 case MONO_MARSHAL_CONV_BOOL_I4:
1655 mono_mb_emit_ldloc (mb, 1);
1656 mono_mb_emit_ldloc (mb, 0);
1657 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1658 mono_mb_emit_byte (mb, CEE_STIND_I4);
1660 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1661 mono_mb_emit_ldloc (mb, 1);
1662 mono_mb_emit_ldloc (mb, 0);
1663 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1664 mono_mb_emit_byte (mb, CEE_NEG);
1665 mono_mb_emit_byte (mb, CEE_STIND_I2);
1667 case MONO_MARSHAL_CONV_STR_LPWSTR:
1668 case MONO_MARSHAL_CONV_STR_LPSTR:
1669 case MONO_MARSHAL_CONV_STR_LPTSTR:
1670 case MONO_MARSHAL_CONV_STR_BSTR:
1671 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1672 case MONO_MARSHAL_CONV_STR_TBSTR: {
1675 /* free space if free == true */
1676 mono_mb_emit_ldloc (mb, 2);
1677 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1678 mono_mb_emit_ldloc (mb, 1);
1679 mono_mb_emit_byte (mb, CEE_LDIND_I);
1680 mono_mb_emit_icall (mb, g_free);
1681 mono_mb_patch_short_branch (mb, pos);
1683 mono_mb_emit_ldloc (mb, 1);
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1686 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1687 mono_mb_emit_byte (mb, stind_op);
1690 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1691 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1692 case MONO_MARSHAL_CONV_DEL_FTN:
1693 mono_mb_emit_ldloc (mb, 1);
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1696 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1697 mono_mb_emit_byte (mb, stind_op);
1699 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1700 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1703 mono_mb_emit_ldloc (mb, 1); /* dst */
1704 mono_mb_emit_ldloc (mb, 0);
1705 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1706 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1707 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1710 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1711 MonoClass *eklass = NULL;
1714 if (type->type == MONO_TYPE_SZARRAY) {
1715 eklass = type->data.klass;
1717 g_assert_not_reached ();
1720 if (eklass->valuetype)
1721 esize = mono_class_native_size (eklass, NULL);
1723 esize = sizeof (gpointer);
1725 mono_mb_emit_ldloc (mb, 0);
1726 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1727 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1729 if (eklass->blittable) {
1730 mono_mb_emit_ldloc (mb, 1);
1731 mono_mb_emit_ldloc (mb, 0);
1732 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1733 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1734 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1735 mono_mb_emit_byte (mb, CEE_PREFIX1);
1736 mono_mb_emit_byte (mb, CEE_CPBLK);
1738 int array_var, src_var, dst_var, index_var;
1739 guint32 label2, label3;
1741 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1742 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1743 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1748 mono_mb_emit_stloc (mb, array_var);
1750 /* save the old src pointer */
1751 mono_mb_emit_ldloc (mb, 0);
1752 mono_mb_emit_stloc (mb, src_var);
1753 /* save the old dst pointer */
1754 mono_mb_emit_ldloc (mb, 1);
1755 mono_mb_emit_stloc (mb, dst_var);
1757 /* Emit marshalling loop */
1758 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1759 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1760 mono_mb_emit_stloc (mb, index_var);
1763 label2 = mono_mb_get_label (mb);
1764 mono_mb_emit_ldloc (mb, index_var);
1765 mono_mb_emit_ldloc (mb, array_var);
1766 mono_mb_emit_byte (mb, CEE_LDLEN);
1767 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1770 mono_mb_emit_ldloc (mb, array_var);
1771 mono_mb_emit_ldloc (mb, index_var);
1772 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1773 mono_mb_emit_stloc (mb, 0);
1775 /* dst is already set */
1777 /* Do the conversion */
1778 emit_struct_conv (mb, eklass, FALSE);
1781 mono_mb_emit_add_to_local (mb, index_var, 1);
1783 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1785 mono_mb_patch_branch (mb, label3);
1787 /* restore the old src pointer */
1788 mono_mb_emit_ldloc (mb, src_var);
1789 mono_mb_emit_stloc (mb, 0);
1790 /* restore the old dst pointer */
1791 mono_mb_emit_ldloc (mb, dst_var);
1792 mono_mb_emit_stloc (mb, 1);
1795 mono_mb_patch_branch (mb, pos);
1798 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1799 mono_mb_emit_ldloc (mb, 0);
1800 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1801 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1803 mono_mb_emit_ldloc (mb, 1);
1804 mono_mb_emit_ldloc (mb, 0);
1805 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1806 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1807 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1808 mono_mb_patch_short_branch (mb, pos);
1811 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1812 int src_var, dst_var;
1814 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1815 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1817 mono_mb_emit_ldloc (mb, 0);
1818 mono_mb_emit_byte (mb, CEE_LDIND_I);
1819 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1821 /* save the old src pointer */
1822 mono_mb_emit_ldloc (mb, 0);
1823 mono_mb_emit_stloc (mb, src_var);
1824 /* save the old dst pointer */
1825 mono_mb_emit_ldloc (mb, 1);
1826 mono_mb_emit_stloc (mb, dst_var);
1828 /* src = pointer to object data */
1829 mono_mb_emit_ldloc (mb, 0);
1830 mono_mb_emit_byte (mb, CEE_LDIND_I);
1831 mono_mb_emit_icon (mb, sizeof (MonoObject));
1832 mono_mb_emit_byte (mb, CEE_ADD);
1833 mono_mb_emit_stloc (mb, 0);
1835 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1837 /* restore the old src pointer */
1838 mono_mb_emit_ldloc (mb, src_var);
1839 mono_mb_emit_stloc (mb, 0);
1840 /* restore the old dst pointer */
1841 mono_mb_emit_ldloc (mb, dst_var);
1842 mono_mb_emit_stloc (mb, 1);
1844 mono_mb_patch_branch (mb, pos);
1849 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1850 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1851 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1852 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1854 #endif /* DISABLE_COM */
1856 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1859 mono_mb_emit_ldloc (mb, 0);
1860 mono_mb_emit_byte (mb, CEE_LDIND_I);
1861 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1862 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1863 mono_mb_patch_branch (mb, pos);
1865 /* Pull the handle field from SafeHandle */
1866 mono_mb_emit_ldloc (mb, 1);
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_I);
1869 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1870 mono_mb_emit_byte (mb, CEE_LDIND_I);
1871 mono_mb_emit_byte (mb, CEE_STIND_I);
1875 case MONO_MARSHAL_CONV_HANDLEREF: {
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_ldloc (mb, 0);
1878 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1879 mono_mb_emit_byte (mb, CEE_ADD);
1880 mono_mb_emit_byte (mb, CEE_LDIND_I);
1881 mono_mb_emit_byte (mb, CEE_STIND_I);
1886 g_error ("marshalling conversion %d not implemented", conv);
1892 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1893 MonoMarshalNative string_encoding)
1895 MonoMarshalType *info;
1899 emit_struct_conv(mb, klass->parent, to_object);
1901 info = mono_marshal_load_type_info (klass);
1903 if (info->native_size == 0)
1906 if (klass->blittable) {
1907 int msize = mono_class_value_size (klass, NULL);
1908 g_assert (msize == info->native_size);
1909 mono_mb_emit_ldloc (mb, 1);
1910 mono_mb_emit_ldloc (mb, 0);
1911 mono_mb_emit_icon (mb, msize);
1912 mono_mb_emit_byte (mb, CEE_PREFIX1);
1913 mono_mb_emit_byte (mb, CEE_CPBLK);
1915 mono_mb_emit_add_to_local (mb, 0, msize);
1916 mono_mb_emit_add_to_local (mb, 1, msize);
1920 if (klass != mono_class_try_get_safehandle_class ()) {
1921 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1922 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1923 mono_type_full_name (&klass->byval_arg));
1924 mono_mb_emit_exception_marshal_directive (mb, msg);
1929 for (i = 0; i < info->num_fields; i++) {
1930 MonoMarshalNative ntype;
1931 MonoMarshalConv conv;
1932 MonoType *ftype = info->fields [i].field->type;
1935 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1937 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1940 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1943 msize = klass->instance_size - info->fields [i].field->offset;
1944 usize = info->native_size - info->fields [i].offset;
1946 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1947 usize = info->fields [i + 1].offset - info->fields [i].offset;
1950 if (klass != mono_class_try_get_safehandle_class ()){
1952 * FIXME: Should really check for usize==0 and msize>0, but we apply
1953 * the layout to the managed structure as well.
1956 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1957 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1958 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1959 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1960 "reference field at the same offset as another field.",
1961 mono_type_full_name (&klass->byval_arg));
1966 case MONO_MARSHAL_CONV_NONE: {
1969 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1970 g_assert (!ftype->byref);
1971 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1972 mono_mb_emit_ldloc (mb, 1);
1973 mono_mb_emit_ldloc (mb, 0);
1974 mono_mb_emit_byte (mb, CEE_LDIND_I);
1975 mono_mb_emit_byte (mb, CEE_STIND_I);
1986 case MONO_TYPE_BOOLEAN:
1989 case MONO_TYPE_CHAR:
1995 mono_mb_emit_ldloc (mb, 1);
1996 mono_mb_emit_ldloc (mb, 0);
1997 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1999 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2000 mono_mb_emit_byte (mb, CEE_STIND_I2);
2002 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2003 mono_mb_emit_byte (mb, CEE_STIND_I1);
2006 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2007 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2010 case MONO_TYPE_VALUETYPE: {
2011 int src_var, dst_var;
2013 if (ftype->data.klass->enumtype) {
2014 ftype = mono_class_enum_basetype (ftype->data.klass);
2018 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2019 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2021 /* save the old src pointer */
2022 mono_mb_emit_ldloc (mb, 0);
2023 mono_mb_emit_stloc (mb, src_var);
2024 /* save the old dst pointer */
2025 mono_mb_emit_ldloc (mb, 1);
2026 mono_mb_emit_stloc (mb, dst_var);
2028 emit_struct_conv (mb, ftype->data.klass, to_object);
2030 /* restore the old src pointer */
2031 mono_mb_emit_ldloc (mb, src_var);
2032 mono_mb_emit_stloc (mb, 0);
2033 /* restore the old dst pointer */
2034 mono_mb_emit_ldloc (mb, dst_var);
2035 mono_mb_emit_stloc (mb, 1);
2038 case MONO_TYPE_OBJECT: {
2041 static MonoMethod *variant_clear = NULL;
2042 static MonoMethod *get_object_for_native_variant = NULL;
2045 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2046 if (!get_object_for_native_variant)
2047 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2048 mono_mb_emit_ldloc (mb, 1);
2049 mono_mb_emit_ldloc (mb, 0);
2050 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2051 mono_mb_emit_byte (mb, CEE_STIND_REF);
2053 mono_mb_emit_ldloc (mb, 0);
2054 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2057 static MonoMethod *get_native_variant_for_object = NULL;
2059 if (!get_native_variant_for_object)
2060 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2062 mono_mb_emit_ldloc (mb, 0);
2063 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2064 mono_mb_emit_ldloc (mb, 1);
2065 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2068 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2069 mono_mb_emit_exception_marshal_directive (mb, msg);
2075 g_warning ("marshaling type %02x not implemented", ftype->type);
2076 g_assert_not_reached ();
2081 int src_var, dst_var;
2083 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2084 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2086 /* save the old src pointer */
2087 mono_mb_emit_ldloc (mb, 0);
2088 mono_mb_emit_stloc (mb, src_var);
2089 /* save the old dst pointer */
2090 mono_mb_emit_ldloc (mb, 1);
2091 mono_mb_emit_stloc (mb, dst_var);
2094 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2096 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2098 /* restore the old src pointer */
2099 mono_mb_emit_ldloc (mb, src_var);
2100 mono_mb_emit_stloc (mb, 0);
2101 /* restore the old dst pointer */
2102 mono_mb_emit_ldloc (mb, dst_var);
2103 mono_mb_emit_stloc (mb, 1);
2108 mono_mb_emit_add_to_local (mb, 0, usize);
2109 mono_mb_emit_add_to_local (mb, 1, msize);
2111 mono_mb_emit_add_to_local (mb, 0, msize);
2112 mono_mb_emit_add_to_local (mb, 1, usize);
2118 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2120 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2124 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2126 /* Call DestroyStructure */
2127 /* FIXME: Only do this if needed */
2128 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2129 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2130 mono_mb_emit_ldloc (mb, struct_var);
2131 mono_mb_emit_icall (mb, mono_struct_delete_old);
2135 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2137 int pos_noabort, pos_noex;
2139 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2140 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2141 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2142 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2144 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2145 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2147 mono_mb_emit_icall (mb, checkpoint_func);
2148 /* Throw the exception returned by the checkpoint function, if any */
2149 mono_mb_emit_byte (mb, CEE_DUP);
2150 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2151 mono_mb_emit_byte (mb, CEE_THROW);
2152 mono_mb_patch_branch (mb, pos_noex);
2153 mono_mb_emit_byte (mb, CEE_POP);
2155 mono_mb_patch_branch (mb, pos_noabort);
2159 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2161 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2164 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2168 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2170 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2174 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2176 emit_thread_interrupt_checkpoint (mb);
2180 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2182 emit_thread_force_interrupt_checkpoint (mb);
2185 #endif /* DISABLE_JIT */
2187 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2188 static MonoAsyncResult *
2189 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2192 MonoMulticastDelegate *mcast_delegate;
2196 g_assert (delegate);
2197 mcast_delegate = (MonoMulticastDelegate *) delegate;
2198 if (mcast_delegate->delegates != NULL) {
2199 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2203 #ifndef DISABLE_REMOTING
2204 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2205 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2206 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2207 /* If the target is a proxy, make a direct call. Is proxy's work
2208 // to make the call asynchronous.
2210 MonoMethodMessage *msg;
2211 MonoDelegate *async_callback;
2213 MonoAsyncResult *ares;
2215 MonoArray *out_args;
2216 method = delegate->method;
2218 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2219 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2220 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2221 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2222 MONO_OBJECT_SETREF (msg, async_result, ares);
2223 msg->call_type = CallType_BeginInvoke;
2226 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2227 if (!mono_error_ok (&error)) {
2228 mono_error_set_pending_exception (&error);
2232 mono_set_pending_exception ((MonoException *) exc);
2238 klass = delegate->object.vtable->klass;
2240 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2242 method = mono_get_delegate_invoke (klass);
2245 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2246 mono_error_set_pending_exception (&error);
2253 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2255 int i, params_var, tmp_var;
2257 /* allocate local (pointer) *params[] */
2258 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2259 /* allocate local (pointer) tmp */
2260 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2262 /* alloate space on stack to store an array of pointers to the arguments */
2263 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2264 mono_mb_emit_byte (mb, CEE_PREFIX1);
2265 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2266 mono_mb_emit_stloc (mb, params_var);
2269 mono_mb_emit_ldloc (mb, params_var);
2270 mono_mb_emit_stloc (mb, tmp_var);
2272 if (save_this && sig->hasthis) {
2273 mono_mb_emit_ldloc (mb, tmp_var);
2274 mono_mb_emit_ldarg_addr (mb, 0);
2275 mono_mb_emit_byte (mb, CEE_STIND_I);
2276 /* tmp = tmp + sizeof (gpointer) */
2277 if (sig->param_count)
2278 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2282 for (i = 0; i < sig->param_count; i++) {
2283 mono_mb_emit_ldloc (mb, tmp_var);
2284 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2285 mono_mb_emit_byte (mb, CEE_STIND_I);
2286 /* tmp = tmp + sizeof (gpointer) */
2287 if (i < (sig->param_count - 1))
2288 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2294 #endif /* DISABLE_JIT */
2297 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2301 GString *res = g_string_new ("");
2304 g_string_append (res, prefix);
2305 g_string_append_c (res, '_');
2308 mono_type_get_desc (res, sig->ret, FALSE);
2311 g_string_append (res, "__this__");
2313 for (i = 0; i < sig->param_count; ++i) {
2314 g_string_append_c (res, '_');
2315 mono_type_get_desc (res, sig->params [i], FALSE);
2318 g_string_free (res, FALSE);
2323 * mono_marshal_get_string_encoding:
2325 * Return the string encoding which should be used for a given parameter.
2327 static MonoMarshalNative
2328 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2330 /* First try the parameter marshal info */
2332 if (spec->native == MONO_NATIVE_LPARRAY) {
2333 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2334 return spec->data.array_data.elem_type;
2337 return spec->native;
2341 return MONO_NATIVE_LPSTR;
2343 /* Then try the method level marshal info */
2344 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2345 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2346 return MONO_NATIVE_LPSTR;
2347 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2348 return MONO_NATIVE_LPWSTR;
2349 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2351 return MONO_NATIVE_LPWSTR;
2353 return MONO_NATIVE_LPSTR;
2356 return MONO_NATIVE_LPSTR;
2360 static MonoMarshalConv
2361 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2363 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2366 case MONO_NATIVE_LPWSTR:
2367 return MONO_MARSHAL_CONV_STR_LPWSTR;
2368 case MONO_NATIVE_LPSTR:
2369 case MONO_NATIVE_VBBYREFSTR:
2370 return MONO_MARSHAL_CONV_STR_LPSTR;
2371 case MONO_NATIVE_LPTSTR:
2372 return MONO_MARSHAL_CONV_STR_LPTSTR;
2373 case MONO_NATIVE_BSTR:
2374 return MONO_MARSHAL_CONV_STR_BSTR;
2376 return MONO_MARSHAL_CONV_INVALID;
2380 static MonoMarshalConv
2381 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2383 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2386 case MONO_NATIVE_LPWSTR:
2387 return MONO_MARSHAL_CONV_SB_LPWSTR;
2389 case MONO_NATIVE_LPSTR:
2390 return MONO_MARSHAL_CONV_SB_LPSTR;
2392 case MONO_NATIVE_LPTSTR:
2393 return MONO_MARSHAL_CONV_SB_LPTSTR;
2396 return MONO_MARSHAL_CONV_INVALID;
2400 static MonoMarshalConv
2401 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2403 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2408 case MONO_NATIVE_LPWSTR:
2410 return MONO_MARSHAL_CONV_LPWSTR_STR;
2411 case MONO_NATIVE_LPSTR:
2412 case MONO_NATIVE_VBBYREFSTR:
2413 return MONO_MARSHAL_CONV_LPSTR_STR;
2414 case MONO_NATIVE_LPTSTR:
2415 return MONO_MARSHAL_CONV_LPTSTR_STR;
2416 case MONO_NATIVE_BSTR:
2417 return MONO_MARSHAL_CONV_BSTR_STR;
2419 return MONO_MARSHAL_CONV_INVALID;
2423 static MonoMarshalConv
2424 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2426 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2431 case MONO_NATIVE_LPWSTR:
2433 * mono_string_builder_to_utf16 does not allocate a
2434 * new buffer, so no need to free it.
2437 return MONO_MARSHAL_CONV_LPWSTR_SB;
2438 case MONO_NATIVE_LPSTR:
2439 return MONO_MARSHAL_CONV_LPSTR_SB;
2441 case MONO_NATIVE_LPTSTR:
2442 return MONO_MARSHAL_CONV_LPTSTR_SB;
2445 return MONO_MARSHAL_CONV_INVALID;
2450 * Return whenever a field of a native structure or an array member needs to
2454 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2456 MonoMarshalNative encoding;
2459 case MONO_TYPE_VALUETYPE:
2460 /* FIXME: Optimize this */
2462 case MONO_TYPE_OBJECT:
2463 case MONO_TYPE_CLASS:
2464 if (t->data.klass == mono_defaults.stringbuilder_class) {
2466 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2470 case MONO_TYPE_STRING:
2471 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2472 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2479 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2482 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2485 mono_marshal_lock ();
2488 g_hash_table_new (hash_func, equal_func);
2489 mono_memory_barrier ();
2492 mono_marshal_unlock ();
2498 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2500 return get_cache (var, hash_func, equal_func);
2504 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2508 mono_marshal_lock ();
2509 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2510 mono_marshal_unlock ();
2517 * Create a MonoMethod from MB, set INFO as wrapper info.
2520 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2521 int max_stack, WrapperInfo *info)
2525 res = mono_mb_create_method (mb, sig, max_stack);
2527 mono_marshal_set_wrapper_info (res, info);
2531 /* Create the method from the builder and place it in the cache */
2533 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2534 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2535 int max_stack, WrapperInfo *info, gboolean *out_found)
2542 mono_marshal_lock ();
2543 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2544 mono_marshal_unlock ();
2547 newm = mono_mb_create_method (mb, sig, max_stack);
2548 mono_marshal_lock ();
2549 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2552 g_hash_table_insert (cache, key, res);
2553 mono_marshal_set_wrapper_info (res, info);
2554 mono_marshal_unlock ();
2558 mono_marshal_unlock ();
2559 mono_free_method (newm);
2567 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2568 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2571 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2575 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2578 int wrapper_type = wrapper->wrapper_type;
2581 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2584 info = mono_marshal_get_wrapper_info (wrapper);
2586 switch (wrapper_type) {
2587 case MONO_WRAPPER_REMOTING_INVOKE:
2588 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2589 case MONO_WRAPPER_XDOMAIN_INVOKE:
2590 m = info->d.remoting.method;
2591 if (wrapper->is_inflated) {
2595 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2596 * contains an uninflated method.
2598 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2599 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2603 case MONO_WRAPPER_SYNCHRONIZED:
2604 m = info->d.synchronized.method;
2605 if (wrapper->is_inflated) {
2608 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2609 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2613 case MONO_WRAPPER_UNBOX:
2614 return info->d.unbox.method;
2615 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2616 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2617 return info->d.managed_to_native.method;
2620 case MONO_WRAPPER_RUNTIME_INVOKE:
2621 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2622 return info->d.runtime_invoke.method;
2631 * mono_marshal_get_wrapper_info:
2633 * Retrieve the WrapperInfo structure associated with WRAPPER.
2636 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2638 g_assert (wrapper->wrapper_type);
2640 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2644 * mono_marshal_set_wrapper_info:
2646 * Set the WrapperInfo structure associated with the wrapper
2647 * method METHOD to INFO.
2650 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2654 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2657 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2662 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2666 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2667 info->subtype = subtype;
2672 * get_wrapper_target_class:
2674 * Return the class where a wrapper method should be placed.
2677 get_wrapper_target_class (MonoImage *image)
2684 * - can't put all wrappers into an mscorlib class, because they reference
2685 * metadata (signature) so they should be put into the same image as the
2686 * method they wrap, so they are unloaded together.
2687 * - putting them into a class with a type initalizer could cause the
2688 * initializer to be executed which can be a problem if the wrappers are
2690 * - putting them into an inflated class can cause problems if the the
2691 * class is deleted because it references an image which is unloaded.
2692 * To avoid these problems, we put the wrappers into the <Module> class of
2695 if (image_is_dynamic (image)) {
2696 klass = ((MonoDynamicImage*)image)->wrappers_type;
2698 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2699 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2707 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2708 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2712 * check_generic_wrapper_cache:
2714 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2715 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2716 * generic method definition.
2719 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2722 MonoMethod *inst, *def;
2723 MonoGenericContext *ctx;
2725 g_assert (orig_method->is_inflated);
2726 ctx = mono_method_get_context (orig_method);
2729 * Look for the instance
2731 res = mono_marshal_find_in_cache (cache, key);
2736 * Look for the definition
2738 def = mono_marshal_find_in_cache (cache, def_key);
2741 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2742 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2744 mono_memory_barrier ();
2745 mono_marshal_lock ();
2746 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2748 g_hash_table_insert (cache, key, inst);
2751 mono_marshal_unlock ();
2758 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2761 MonoMethod *inst, *res;
2764 * We use the same cache for the generic definition and the instances.
2766 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2767 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2768 mono_memory_barrier ();
2769 mono_marshal_lock ();
2770 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2772 g_hash_table_insert (cache, key, inst);
2775 mono_marshal_unlock ();
2780 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2784 MonoMethod *inst, *def;
2787 * Look for the instance
2789 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2794 * Look for the definition
2796 def = mono_marshal_find_in_cache (cache, def_method->klass);
2798 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2799 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2802 mono_memory_barrier ();
2803 mono_marshal_lock ();
2804 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2806 g_hash_table_insert (cache, orig_method->klass, inst);
2809 mono_marshal_unlock ();
2816 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2819 MonoMethod *inst, *res;
2822 * We use the same cache for the generic definition and the instances.
2824 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2825 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2827 mono_memory_barrier ();
2828 mono_marshal_lock ();
2829 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2831 g_hash_table_insert (cache, orig_method->klass, inst);
2834 mono_marshal_unlock ();
2839 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2841 MonoMethodSignature *sig;
2842 MonoMethodBuilder *mb;
2847 MonoGenericContext *ctx = NULL;
2848 MonoMethod *orig_method = NULL;
2850 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2851 !strcmp (method->name, "BeginInvoke"));
2854 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2856 if (method->is_inflated) {
2857 orig_method = method;
2858 ctx = &((MonoMethodInflated*)method)->context;
2859 method = ((MonoMethodInflated*)method)->declaring;
2862 sig = mono_signature_no_pinvoke (method);
2868 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2869 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2873 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2874 (GHashFunc)mono_signature_hash,
2875 (GCompareFunc)mono_metadata_signature_equal);
2876 if ((res = mono_marshal_find_in_cache (cache, sig)))
2880 g_assert (sig->hasthis);
2882 name = mono_signature_to_name (sig, "begin_invoke");
2884 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2886 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2890 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2892 mono_mb_emit_ldarg (mb, 0);
2893 mono_mb_emit_ldloc (mb, params_var);
2894 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2895 mono_mb_emit_byte (mb, CEE_RET);
2900 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2901 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2903 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2910 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2912 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2915 MonoDomain *domain = mono_domain_get ();
2916 MonoAsyncResult *ares;
2917 MonoMethod *method = NULL;
2918 MonoMethodSignature *sig;
2919 MonoMethodMessage *msg;
2920 MonoObject *res, *exc;
2921 MonoArray *out_args;
2924 g_assert (delegate);
2926 if (!delegate->method_info) {
2927 g_assert (delegate->method);
2928 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2929 if (!mono_error_ok (&error)) {
2930 mono_error_set_pending_exception (&error);
2933 MONO_OBJECT_SETREF (delegate, method_info, rm);
2936 if (!delegate->method_info || !delegate->method_info->method)
2937 g_assert_not_reached ();
2939 klass = delegate->object.vtable->klass;
2941 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2942 g_assert (method != NULL);
2944 sig = mono_signature_no_pinvoke (method);
2946 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2948 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2950 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."));
2954 if (ares->async_delegate != (MonoObject*)delegate) {
2955 mono_set_pending_exception (mono_get_exception_invalid_operation (
2956 "The IAsyncResult object provided does not match this delegate."));
2960 #ifndef DISABLE_REMOTING
2961 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2962 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2963 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2964 if (!mono_error_ok (&error)) {
2965 mono_error_set_pending_exception (&error);
2968 mono_message_init (domain, msg, delegate->method_info, NULL);
2969 msg->call_type = CallType_EndInvoke;
2970 MONO_OBJECT_SETREF (msg, async_result, ares);
2971 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2972 if (!mono_error_ok (&error)) {
2973 mono_error_set_pending_exception (&error);
2979 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2983 if (((MonoException*)exc)->stack_trace) {
2984 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2986 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2988 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2991 mono_set_pending_exception ((MonoException*)exc);
2994 mono_method_return_message_restore (method, params, out_args, &error);
2995 mono_error_set_pending_exception (&error);
3002 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3004 MonoType *t = mono_type_get_underlying_type (return_type);
3006 if (return_type->byref)
3007 return_type = &mono_defaults.int_class->byval_arg;
3010 case MONO_TYPE_VOID:
3011 g_assert_not_reached ();
3014 case MONO_TYPE_STRING:
3015 case MONO_TYPE_CLASS:
3016 case MONO_TYPE_OBJECT:
3017 case MONO_TYPE_ARRAY:
3018 case MONO_TYPE_SZARRAY:
3022 case MONO_TYPE_BOOLEAN:
3025 case MONO_TYPE_CHAR:
3035 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3036 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3038 case MONO_TYPE_GENERICINST:
3039 if (!mono_type_generic_inst_is_valuetype (t))
3042 case MONO_TYPE_VALUETYPE: {
3043 MonoClass *klass = mono_class_from_mono_type (return_type);
3044 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3045 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3049 case MONO_TYPE_MVAR: {
3050 MonoClass *klass = mono_class_from_mono_type (return_type);
3051 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3055 g_warning ("type 0x%x not handled", return_type->type);
3056 g_assert_not_reached ();
3059 mono_mb_emit_byte (mb, CEE_RET);
3062 #endif /* DISABLE_JIT */
3065 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3067 MonoMethodSignature *sig;
3068 MonoMethodBuilder *mb;
3073 MonoGenericContext *ctx = NULL;
3074 MonoMethod *orig_method = NULL;
3076 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3077 !strcmp (method->name, "EndInvoke"));
3080 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3082 if (method->is_inflated) {
3083 orig_method = method;
3084 ctx = &((MonoMethodInflated*)method)->context;
3085 method = ((MonoMethodInflated*)method)->declaring;
3088 sig = mono_signature_no_pinvoke (method);
3094 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3095 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3099 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3100 (GHashFunc)mono_signature_hash,
3101 (GCompareFunc)mono_metadata_signature_equal);
3102 if ((res = mono_marshal_find_in_cache (cache, sig)))
3106 g_assert (sig->hasthis);
3108 name = mono_signature_to_name (sig, "end_invoke");
3110 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3112 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3116 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3118 mono_mb_emit_ldarg (mb, 0);
3119 mono_mb_emit_ldloc (mb, params_var);
3120 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3122 if (sig->ret->type == MONO_TYPE_VOID) {
3123 mono_mb_emit_byte (mb, CEE_POP);
3124 mono_mb_emit_byte (mb, CEE_RET);
3126 mono_mb_emit_restore_result (mb, sig->ret);
3131 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3132 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3134 res = mono_mb_create_and_cache (cache, sig,
3135 mb, sig, sig->param_count + 16);
3144 MonoMethodSignature *sig;
3146 } SignaturePointerPair;
3149 signature_pointer_pair_hash (gconstpointer data)
3151 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3153 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3157 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3159 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3160 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3164 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3166 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3168 return pair->pointer == user_data;
3172 free_signature_pointer_pair (SignaturePointerPair *pair)
3178 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3180 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3182 MonoMethodBuilder *mb;
3185 gpointer cache_key = NULL;
3186 SignaturePointerPair key;
3187 SignaturePointerPair *new_key;
3188 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3189 int pos0, pos1, pos2;
3191 MonoClass *target_class = NULL;
3192 gboolean closed_over_null = FALSE;
3193 MonoGenericContext *ctx = NULL;
3194 MonoGenericContainer *container = NULL;
3195 MonoMethod *orig_method = NULL;
3197 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3201 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3202 !strcmp (method->name, "Invoke"));
3204 invoke_sig = sig = mono_signature_no_pinvoke (method);
3207 * If the delegate target is null, and the target method is not static, a virtual
3208 * call is made to that method with the first delegate argument as this. This is
3209 * a non-documented .NET feature.
3212 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3213 if (target_method->is_inflated) {
3215 MonoType *target_type;
3217 g_assert (method->signature->hasthis);
3218 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3219 mono_method_get_context (method), &error);
3220 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3221 target_class = mono_class_from_mono_type (target_type);
3223 target_class = target_method->klass;
3226 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3229 if (static_method_with_first_arg_bound) {
3230 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3231 g_assert (!callvirt);
3232 invoke_sig = mono_method_signature (target_method);
3236 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3238 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3239 orig_method = method;
3240 ctx = &((MonoMethodInflated*)method)->context;
3241 method = ((MonoMethodInflated*)method)->declaring;
3243 container = mono_method_get_generic_container (method);
3245 container = method->klass->generic_container;
3246 g_assert (container);
3248 invoke_sig = sig = mono_signature_no_pinvoke (method);
3255 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3256 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3259 cache_key = method->klass;
3260 } else if (static_method_with_first_arg_bound) {
3261 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3262 (GHashFunc)mono_signature_hash,
3263 (GCompareFunc)mono_metadata_signature_equal);
3265 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3267 res = mono_marshal_find_in_cache (cache, invoke_sig);
3270 cache_key = invoke_sig;
3271 } else if (callvirt) {
3272 GHashTable **cache_ptr;
3274 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3276 /* We need to cache the signature+method pair */
3277 mono_marshal_lock ();
3279 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3281 key.sig = invoke_sig;
3282 key.pointer = target_method;
3283 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3284 mono_marshal_unlock ();
3288 // Inflated methods should not be in this cache because it's not stored on the imageset.
3289 g_assert (!method->is_inflated);
3290 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3291 (GHashFunc)mono_signature_hash,
3292 (GCompareFunc)mono_metadata_signature_equal);
3293 res = mono_marshal_find_in_cache (cache, sig);
3299 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3300 static_sig->hasthis = 0;
3301 if (!static_method_with_first_arg_bound)
3302 invoke_sig = static_sig;
3304 if (static_method_with_first_arg_bound)
3305 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3306 else if (closed_over_null)
3307 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3309 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3311 name = mono_signature_to_name (invoke_sig, "invoke");
3313 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3315 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3319 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3321 /* allocate local 0 (object) */
3322 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3323 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3324 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3325 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3326 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3329 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3331 g_assert (sig->hasthis);
3334 * {type: sig->ret} res;
3335 * if (delegates == null) {
3336 * return this.<target> ( args .. );
3338 * int i = 0, len = this.delegates.Length;
3340 * res = this.delegates [i].Invoke ( args .. );
3341 * } while (++i < len);
3346 /* this wrapper can be used in unmanaged-managed transitions */
3347 emit_thread_interrupt_checkpoint (mb);
3349 /* delegates = this.delegates */
3350 mono_mb_emit_ldarg (mb, 0);
3351 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3352 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3353 mono_mb_emit_stloc (mb, local_delegates);
3356 /* if (delegates == null) */
3357 mono_mb_emit_ldloc (mb, local_delegates);
3358 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3360 /* return target.<target_method|method_ptr> ( args .. ); */
3362 /* target = d.target; */
3363 mono_mb_emit_ldarg (mb, 0);
3364 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3365 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3366 mono_mb_emit_stloc (mb, local_target);
3368 /*static methods with bound first arg can have null target and still be bound*/
3369 if (!static_method_with_first_arg_bound) {
3370 /* if target != null */
3371 mono_mb_emit_ldloc (mb, local_target);
3372 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3374 /* then call this->method_ptr nonstatic */
3377 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3379 mono_mb_emit_ldloc (mb, local_target);
3380 for (i = 0; i < sig->param_count; ++i)
3381 mono_mb_emit_ldarg (mb, i + 1);
3382 mono_mb_emit_ldarg (mb, 0);
3383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3384 mono_mb_emit_byte (mb, CEE_LDIND_I);
3385 mono_mb_emit_ldarg (mb, 0);
3386 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3387 mono_mb_emit_byte (mb, CEE_LDIND_I);
3388 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3389 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3390 mono_mb_emit_byte (mb, CEE_RET);
3393 /* else [target == null] call this->method_ptr static */
3394 mono_mb_patch_branch (mb, pos0);
3398 if (!closed_over_null) {
3399 if (target_class->valuetype) {
3400 mono_mb_emit_ldarg (mb, 1);
3401 for (i = 1; i < sig->param_count; ++i)
3402 mono_mb_emit_ldarg (mb, i + 1);
3403 mono_mb_emit_op (mb, CEE_CALL, target_method);
3405 mono_mb_emit_ldarg (mb, 1);
3406 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3407 for (i = 1; i < sig->param_count; ++i)
3408 mono_mb_emit_ldarg (mb, i + 1);
3409 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3412 mono_mb_emit_byte (mb, CEE_LDNULL);
3413 for (i = 0; i < sig->param_count; ++i)
3414 mono_mb_emit_ldarg (mb, i + 1);
3415 mono_mb_emit_op (mb, CEE_CALL, target_method);
3418 if (static_method_with_first_arg_bound) {
3419 mono_mb_emit_ldloc (mb, local_target);
3420 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3421 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3423 for (i = 0; i < sig->param_count; ++i)
3424 mono_mb_emit_ldarg (mb, i + 1);
3425 mono_mb_emit_ldarg (mb, 0);
3426 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3427 mono_mb_emit_byte (mb, CEE_LDIND_I);
3428 mono_mb_emit_ldarg (mb, 0);
3429 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3430 mono_mb_emit_byte (mb, CEE_LDIND_I);
3431 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3432 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3435 mono_mb_emit_byte (mb, CEE_RET);
3437 /* else [delegates != null] */
3438 mono_mb_patch_branch (mb, pos2);
3440 /* len = delegates.Length; */
3441 mono_mb_emit_ldloc (mb, local_delegates);
3442 mono_mb_emit_byte (mb, CEE_LDLEN);
3443 mono_mb_emit_byte (mb, CEE_CONV_I4);
3444 mono_mb_emit_stloc (mb, local_len);
3447 mono_mb_emit_icon (mb, 0);
3448 mono_mb_emit_stloc (mb, local_i);
3450 pos1 = mono_mb_get_label (mb);
3452 /* d = delegates [i]; */
3453 mono_mb_emit_ldloc (mb, local_delegates);
3454 mono_mb_emit_ldloc (mb, local_i);
3455 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3456 mono_mb_emit_stloc (mb, local_d);
3458 /* res = d.Invoke ( args .. ); */
3459 mono_mb_emit_ldloc (mb, local_d);
3460 for (i = 0; i < sig->param_count; i++)
3461 mono_mb_emit_ldarg (mb, i + 1);
3463 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3466 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3467 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3470 mono_mb_emit_stloc (mb, local_res);
3473 mono_mb_emit_add_to_local (mb, local_i, 1);
3476 mono_mb_emit_ldloc (mb, local_i);
3477 mono_mb_emit_ldloc (mb, local_len);
3478 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3482 mono_mb_emit_ldloc (mb, local_res);
3483 mono_mb_emit_byte (mb, CEE_RET);
3485 mb->skip_visibility = 1;
3486 #endif /* DISABLE_JIT */
3488 info = mono_wrapper_info_create (mb, subtype);
3493 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3494 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3495 } else if (callvirt) {
3496 new_key = g_new0 (SignaturePointerPair, 1);
3499 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3503 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3507 /* mono_method_print_code (res); */
3513 * the returned method invokes all methods in a multicast delegate.
3516 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3518 gboolean callvirt = FALSE;
3519 gboolean static_method_with_first_arg_bound = FALSE;
3520 MonoMethod *target_method = NULL;
3521 MonoMethodSignature *sig;
3523 sig = mono_signature_no_pinvoke (method);
3525 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3527 target_method = del->method;
3530 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3531 static_method_with_first_arg_bound = TRUE;
3532 target_method = del->method;
3535 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3539 MonoMethodSignature *ctor_sig;
3540 MonoMethodSignature *sig;
3543 /* protected by the marshal lock, contains CtorSigPair pointers */
3544 static GSList *strsig_list = NULL;
3546 static MonoMethodSignature *
3547 lookup_string_ctor_signature (MonoMethodSignature *sig)
3549 MonoMethodSignature *callsig;
3553 mono_marshal_lock ();
3555 for (item = strsig_list; item; item = item->next) {
3556 cs = (CtorSigPair *)item->data;
3557 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3558 * because it is lock-free.
3560 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3565 mono_marshal_unlock ();
3569 static MonoMethodSignature *
3570 add_string_ctor_signature (MonoMethod *method)
3572 MonoMethodSignature *callsig;
3575 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3576 callsig->ret = &mono_defaults.string_class->byval_arg;
3577 cs = g_new (CtorSigPair, 1);
3579 cs->ctor_sig = mono_method_signature (method);
3581 mono_marshal_lock ();
3582 strsig_list = g_slist_prepend (strsig_list, cs);
3583 mono_marshal_unlock ();
3588 * mono_marshal_get_string_ctor_signature:
3590 * Return the modified signature used by string ctors (they return the newly created
3593 MonoMethodSignature*
3594 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3596 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3598 sig = add_string_ctor_signature (method);
3604 get_runtime_invoke_type (MonoType *t, gboolean ret)
3607 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3609 /* Can't share this with 'I' as that needs another indirection */
3610 return &mono_defaults.int_class->this_arg;
3613 if (MONO_TYPE_IS_REFERENCE (t))
3614 return &mono_defaults.object_class->byval_arg;
3617 /* The result needs to be boxed */
3622 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3625 return &mono_defaults.sbyte_class->byval_arg;
3627 return &mono_defaults.int16_class->byval_arg;
3629 return &mono_defaults.int32_class->byval_arg;
3632 return &mono_defaults.int64_class->byval_arg;
3633 case MONO_TYPE_BOOLEAN:
3634 return &mono_defaults.byte_class->byval_arg;
3635 case MONO_TYPE_CHAR:
3636 return &mono_defaults.uint16_class->byval_arg;
3638 return &mono_defaults.int_class->byval_arg;
3639 case MONO_TYPE_VALUETYPE:
3640 if (t->data.klass->enumtype) {
3641 t = mono_class_enum_basetype (t->data.klass);
3651 * mono_marshal_get_runtime_invoke_sig:
3653 * Return a common signature used for sharing runtime invoke wrappers.
3655 static MonoMethodSignature*
3656 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3658 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3661 res->generic_param_count = 0;
3662 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3663 for (i = 0; i < res->param_count; ++i)
3664 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3670 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3672 /* Can't share wrappers which return a vtype since it needs to be boxed */
3673 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))
3676 return mono_metadata_signature_equal (sig1, sig2);
3684 * Emit the call to the wrapper method from a runtime invoke wrapper.
3687 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3688 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3690 gboolean virtual_, gboolean need_direct_wrapper)
3692 static MonoString *string_dummy = NULL;
3694 int *tmp_nullable_locals;
3695 gboolean void_ret = FALSE;
3696 gboolean string_ctor = method && method->string_ctor;
3698 /* to make it work with our special string constructors */
3699 if (!string_dummy) {
3700 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3701 string_dummy = mono_string_new_wrapper ("dummy");
3705 g_assert (sig->hasthis);
3706 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3711 if (mono_gc_is_moving ()) {
3712 mono_mb_emit_ptr (mb, &string_dummy);
3713 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3715 mono_mb_emit_ptr (mb, string_dummy);
3718 mono_mb_emit_ldarg (mb, 0);
3722 tmp_nullable_locals = g_new0 (int, sig->param_count);
3724 for (i = 0; i < sig->param_count; i++) {
3725 MonoType *t = sig->params [i];
3728 mono_mb_emit_ldarg (mb, 1);
3730 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3731 mono_mb_emit_byte (mb, CEE_ADD);
3735 mono_mb_emit_byte (mb, CEE_LDIND_I);
3736 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3737 * So to make this work we unbox it to a local variablee and push a reference to that.
3739 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3740 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3742 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3743 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3744 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3749 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3750 type = sig->params [i]->type;
3754 case MONO_TYPE_BOOLEAN:
3758 case MONO_TYPE_CHAR:
3767 mono_mb_emit_byte (mb, CEE_LDIND_I);
3768 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3770 case MONO_TYPE_STRING:
3771 case MONO_TYPE_CLASS:
3772 case MONO_TYPE_ARRAY:
3774 case MONO_TYPE_SZARRAY:
3775 case MONO_TYPE_OBJECT:
3776 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3778 case MONO_TYPE_GENERICINST:
3779 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3780 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3785 case MONO_TYPE_VALUETYPE:
3786 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3787 type = mono_class_enum_basetype (t->data.klass)->type;
3790 mono_mb_emit_byte (mb, CEE_LDIND_I);
3791 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3792 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3793 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3794 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3796 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3800 g_assert_not_reached ();
3805 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3806 } else if (need_direct_wrapper) {
3807 mono_mb_emit_op (mb, CEE_CALL, method);
3809 mono_mb_emit_ldarg (mb, 3);
3810 mono_mb_emit_calli (mb, callsig);
3813 if (sig->ret->byref) {
3815 g_assert_not_reached ();
3818 switch (sig->ret->type) {
3819 case MONO_TYPE_VOID:
3823 case MONO_TYPE_BOOLEAN:
3824 case MONO_TYPE_CHAR:
3837 case MONO_TYPE_VALUETYPE:
3838 case MONO_TYPE_TYPEDBYREF:
3839 case MONO_TYPE_GENERICINST:
3840 /* box value types */
3841 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3843 case MONO_TYPE_STRING:
3844 case MONO_TYPE_CLASS:
3845 case MONO_TYPE_ARRAY:
3846 case MONO_TYPE_SZARRAY:
3847 case MONO_TYPE_OBJECT:
3851 /* The result is an IntPtr */
3852 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3855 g_assert_not_reached ();
3859 mono_mb_emit_stloc (mb, loc_res);
3861 /* Convert back nullable-byref arguments */
3862 for (i = 0; i < sig->param_count; i++) {
3863 MonoType *t = sig->params [i];
3866 * Box the result and put it back into the array, the caller will have
3867 * to obtain it from there.
3869 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3870 mono_mb_emit_ldarg (mb, 1);
3871 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3872 mono_mb_emit_byte (mb, CEE_ADD);
3874 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3875 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3877 mono_mb_emit_byte (mb, CEE_STIND_REF);
3881 g_free (tmp_nullable_locals);
3885 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3886 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3887 gboolean virtual_, gboolean need_direct_wrapper)
3890 MonoExceptionClause *clause;
3891 int loc_res, loc_exc;
3893 /* The wrapper looks like this:
3899 * } catch (Exception e) {
3907 /* allocate local 0 (object) tmp */
3908 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3909 /* allocate local 1 (object) exc */
3910 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3912 /* *exc is assumed to be initialized to NULL by the caller */
3914 mono_mb_emit_byte (mb, CEE_LDARG_2);
3915 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3920 labels [1] = mono_mb_get_label (mb);
3921 emit_thread_force_interrupt_checkpoint (mb);
3922 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3924 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3926 /* Add a try clause around the call */
3927 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3928 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3929 clause->data.catch_class = mono_defaults.exception_class;
3930 clause->try_offset = labels [1];
3931 clause->try_len = mono_mb_get_label (mb) - labels [1];
3933 clause->handler_offset = mono_mb_get_label (mb);
3936 mono_mb_emit_stloc (mb, loc_exc);
3937 mono_mb_emit_byte (mb, CEE_LDARG_2);
3938 mono_mb_emit_ldloc (mb, loc_exc);
3939 mono_mb_emit_byte (mb, CEE_STIND_REF);
3941 mono_mb_emit_branch (mb, CEE_LEAVE);
3943 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3945 mono_mb_set_clauses (mb, 1, clause);
3947 mono_mb_patch_branch (mb, labels [2]);
3948 mono_mb_emit_ldloc (mb, loc_res);
3949 mono_mb_emit_byte (mb, CEE_RET);
3954 mono_mb_patch_branch (mb, labels [0]);
3955 emit_thread_force_interrupt_checkpoint (mb);
3956 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3958 mono_mb_emit_ldloc (mb, 0);
3959 mono_mb_emit_byte (mb, CEE_RET);
3964 * generates IL code for the runtime invoke function
3965 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3967 * we also catch exceptions if exc != null
3968 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3969 * it means that the compiled code for METHOD does not have to be looked up
3970 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3971 * its METHOD argument.
3974 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3976 MonoMethodSignature *sig, *csig, *callsig;
3977 MonoMethodBuilder *mb;
3978 GHashTable *cache = NULL;
3979 MonoClass *target_klass;
3980 MonoMethod *res = NULL;
3981 static MonoMethodSignature *cctor_signature = NULL;
3982 static MonoMethodSignature *finalize_signature = NULL;
3984 const char *param_names [16];
3985 gboolean need_direct_wrapper = FALSE;
3990 if (!cctor_signature) {
3991 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3992 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3994 if (!finalize_signature) {
3995 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3996 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3997 finalize_signature->hasthis = 1;
4001 need_direct_wrapper = TRUE;
4004 * Use a separate cache indexed by methods to speed things up and to avoid the
4005 * boundless mempool growth caused by the signature_dup stuff below.
4008 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4010 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4012 res = mono_marshal_find_in_cache (cache, method);
4016 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4017 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4019 * Array Get/Set/Address methods. The JIT implements them using inline code
4020 * so we need to create an invoke wrapper which calls the method directly.
4022 need_direct_wrapper = TRUE;
4025 if (method->string_ctor) {
4026 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4028 callsig = add_string_ctor_signature (method);
4029 /* Can't share this as we push a string as this */
4030 need_direct_wrapper = TRUE;
4032 if (method_is_dynamic (method))
4033 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4035 callsig = mono_method_signature (method);
4038 sig = mono_method_signature (method);
4040 target_klass = get_wrapper_target_class (method->klass->image);
4042 /* Try to share wrappers for non-corlib methods with simple signatures */
4043 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4044 callsig = cctor_signature;
4045 target_klass = mono_defaults.object_class;
4046 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4047 callsig = finalize_signature;
4048 target_klass = mono_defaults.object_class;
4051 if (need_direct_wrapper) {
4052 /* Already searched at the start */
4054 MonoMethodSignature *tmp_sig;
4056 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4057 GHashTable **cache_table = NULL;
4059 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4060 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4062 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4064 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4065 (GCompareFunc)runtime_invoke_signature_equal);
4067 /* from mono_marshal_find_in_cache */
4068 mono_marshal_lock ();
4069 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4070 mono_marshal_unlock ();
4077 /* Make a copy of the signature from the image mempool */
4079 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4083 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4085 csig->ret = &mono_defaults.object_class->byval_arg;
4086 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4087 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4089 csig->params [0] = &mono_defaults.object_class->byval_arg;
4090 csig->params [1] = &mono_defaults.int_class->byval_arg;
4091 csig->params [2] = &mono_defaults.int_class->byval_arg;
4092 csig->params [3] = &mono_defaults.int_class->byval_arg;
4095 /* This is called from runtime code so it has to be cdecl */
4096 csig->call_convention = MONO_CALL_C;
4099 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4100 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4104 param_names [0] = "this";
4105 param_names [1] = "params";
4106 param_names [2] = "exc";
4107 param_names [3] = "method";
4108 mono_mb_set_param_names (mb, param_names);
4110 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4113 if (need_direct_wrapper) {
4115 mb->skip_visibility = 1;
4117 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4118 info->d.runtime_invoke.method = method;
4119 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4121 /* taken from mono_mb_create_and_cache */
4122 mono_marshal_lock ();
4123 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4124 mono_marshal_unlock ();
4126 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4127 info->d.runtime_invoke.sig = callsig;
4129 /* Somebody may have created it before us */
4132 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4134 mono_marshal_lock ();
4135 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4137 GHashTable *direct_cache;
4139 g_hash_table_insert (cache, callsig, res);
4140 /* Can't insert it into wrapper_hash since the key is a signature */
4141 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4143 g_hash_table_insert (direct_cache, method, res);
4145 mono_free_method (newm);
4147 mono_marshal_unlock ();
4150 /* end mono_mb_create_and_cache */
4159 * mono_marshal_get_runtime_invoke_dynamic:
4161 * Return a method which can be used to invoke managed methods from native code
4163 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4164 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4165 * ARGS should point to an architecture specific structure containing
4166 * the arguments and space for the return value.
4167 * The other arguments are the same as for runtime_invoke (), except that
4168 * ARGS should contain the this argument too.
4169 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4170 * is only one copy of it, which is useful in full-aot.
4171 * The wrapper info for the wrapper is a WrapperInfo structure.
4174 mono_marshal_get_runtime_invoke_dynamic (void)
4176 static MonoMethod *method;
4177 MonoMethodSignature *csig;
4178 MonoExceptionClause *clause;
4179 MonoMethodBuilder *mb;
4187 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4189 csig->ret = &mono_defaults.void_class->byval_arg;
4190 csig->params [0] = &mono_defaults.int_class->byval_arg;
4191 csig->params [1] = &mono_defaults.int_class->byval_arg;
4192 csig->params [2] = &mono_defaults.int_class->byval_arg;
4193 csig->params [3] = &mono_defaults.int_class->byval_arg;
4195 name = g_strdup ("runtime_invoke_dynamic");
4196 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4200 /* allocate local 0 (object) tmp */
4201 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4202 /* allocate local 1 (object) exc */
4203 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4205 /* cond set *exc to null */
4206 mono_mb_emit_byte (mb, CEE_LDARG_1);
4207 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4208 mono_mb_emit_byte (mb, 3);
4209 mono_mb_emit_byte (mb, CEE_LDARG_1);
4210 mono_mb_emit_byte (mb, CEE_LDNULL);
4211 mono_mb_emit_byte (mb, CEE_STIND_REF);
4213 emit_thread_force_interrupt_checkpoint (mb);
4215 mono_mb_emit_byte (mb, CEE_LDARG_0);
4216 mono_mb_emit_byte (mb, CEE_LDARG_2);
4217 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4218 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4220 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4222 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4223 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4224 clause->try_len = mono_mb_get_label (mb);
4227 clause->data.filter_offset = mono_mb_get_label (mb);
4229 mono_mb_emit_byte (mb, CEE_POP);
4230 mono_mb_emit_byte (mb, CEE_LDARG_1);
4231 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4232 mono_mb_emit_byte (mb, CEE_PREFIX1);
4233 mono_mb_emit_byte (mb, CEE_CGT_UN);
4234 mono_mb_emit_byte (mb, CEE_PREFIX1);
4235 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4237 clause->handler_offset = mono_mb_get_label (mb);
4240 /* store exception */
4241 mono_mb_emit_stloc (mb, 1);
4243 mono_mb_emit_byte (mb, CEE_LDARG_1);
4244 mono_mb_emit_ldloc (mb, 1);
4245 mono_mb_emit_byte (mb, CEE_STIND_REF);
4247 mono_mb_emit_byte (mb, CEE_LDNULL);
4248 mono_mb_emit_stloc (mb, 0);
4250 /* Check for the abort exception */
4251 mono_mb_emit_ldloc (mb, 1);
4252 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4253 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4255 /* Delay the abort exception */
4256 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4258 mono_mb_patch_short_branch (mb, posna);
4259 mono_mb_emit_branch (mb, CEE_LEAVE);
4261 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4263 mono_mb_set_clauses (mb, 1, clause);
4266 mono_mb_patch_branch (mb, pos);
4267 //mono_mb_emit_ldloc (mb, 0);
4268 mono_mb_emit_byte (mb, CEE_RET);
4269 #endif /* DISABLE_JIT */
4271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4273 mono_marshal_lock ();
4274 /* double-checked locking */
4276 method = mono_mb_create (mb, csig, 16, info);
4278 mono_marshal_unlock ();
4286 * mono_marshal_get_runtime_invoke_for_sig:
4288 * Return a runtime invoke wrapper for a given signature.
4291 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4293 MonoMethodSignature *csig, *callsig;
4294 MonoMethodBuilder *mb;
4296 GHashTable *cache = NULL;
4297 GHashTable **cache_table = NULL;
4298 MonoMethod *res = NULL;
4300 const char *param_names [16];
4303 /* A simplified version of mono_marshal_get_runtime_invoke */
4305 image = mono_defaults.corlib;
4307 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4309 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4311 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4312 (GCompareFunc)runtime_invoke_signature_equal);
4314 /* from mono_marshal_find_in_cache */
4315 mono_marshal_lock ();
4316 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4317 mono_marshal_unlock ();
4324 /* Make a copy of the signature from the image mempool */
4325 callsig = mono_metadata_signature_dup_full (image, callsig);
4327 csig = mono_metadata_signature_alloc (image, 4);
4328 csig->ret = &mono_defaults.object_class->byval_arg;
4329 csig->params [0] = &mono_defaults.object_class->byval_arg;
4330 csig->params [1] = &mono_defaults.int_class->byval_arg;
4331 csig->params [2] = &mono_defaults.int_class->byval_arg;
4332 csig->params [3] = &mono_defaults.int_class->byval_arg;
4335 /* This is called from runtime code so it has to be cdecl */
4336 csig->call_convention = MONO_CALL_C;
4339 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4340 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4344 param_names [0] = "this";
4345 param_names [1] = "params";
4346 param_names [2] = "exc";
4347 param_names [3] = "method";
4348 mono_mb_set_param_names (mb, param_names);
4350 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4353 /* taken from mono_mb_create_and_cache */
4354 mono_marshal_lock ();
4355 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4356 mono_marshal_unlock ();
4358 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4359 info->d.runtime_invoke.sig = callsig;
4361 /* Somebody may have created it before us */
4364 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4366 mono_marshal_lock ();
4367 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4370 g_hash_table_insert (cache, callsig, res);
4372 mono_free_method (newm);
4374 mono_marshal_unlock ();
4377 /* end mono_mb_create_and_cache */
4386 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4388 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4389 klass->name_space, klass->name);
4391 mono_mb_emit_exception_marshal_directive (mb, msg);
4396 * generates IL code for the icall wrapper (the generated method
4397 * calls the unmanaged code in func)
4398 * The wrapper info for the wrapper is a WrapperInfo structure.
4401 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4403 MonoMethodSignature *csig, *csig2;
4404 MonoMethodBuilder *mb;
4409 g_assert (sig->pinvoke);
4411 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4413 mb->method->save_lmf = 1;
4415 /* Add an explicit this argument */
4417 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4419 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4423 mono_mb_emit_byte (mb, CEE_LDARG_0);
4425 for (i = 0; i < sig->param_count; i++)
4426 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4428 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4429 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4430 mono_mb_emit_calli (mb, csig2);
4431 if (check_exceptions)
4432 emit_thread_interrupt_checkpoint (mb);
4433 mono_mb_emit_byte (mb, CEE_RET);
4436 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4438 if (csig->call_convention == MONO_CALL_VARARG)
4439 csig->call_convention = 0;
4441 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4442 info->d.icall.func = (gpointer)func;
4443 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4450 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4451 MonoMarshalSpec *spec,
4452 int conv_arg, MonoType **conv_arg_type,
4453 MarshalAction action)
4456 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4457 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4463 static MonoClass *ICustomMarshaler = NULL;
4464 static MonoMethod *cleanup_native, *cleanup_managed;
4465 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4466 MonoMethod *get_instance = NULL;
4467 MonoMethodBuilder *mb = m->mb;
4468 char *exception_msg = NULL;
4472 if (!ICustomMarshaler) {
4473 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4475 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4476 goto handle_exception;
4479 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4480 g_assert (cleanup_native);
4481 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4482 g_assert (cleanup_managed);
4483 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4484 g_assert (marshal_managed_to_native);
4485 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4486 g_assert (marshal_native_to_managed);
4488 mono_memory_barrier ();
4489 ICustomMarshaler = klass;
4492 if (spec->data.custom_data.image)
4493 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4495 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4496 g_assert (mtype != NULL);
4497 mono_error_assert_ok (&error);
4498 mklass = mono_class_from_mono_type (mtype);
4499 g_assert (mklass != NULL);
4501 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4502 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4504 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4506 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4507 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4508 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4509 (get_sig->params [0]->type != MONO_TYPE_STRING))
4510 get_instance = NULL;
4514 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);
4517 /* Throw exception and emit compensation code if neccesary */
4518 if (exception_msg) {
4520 case MARSHAL_ACTION_CONV_IN:
4521 case MARSHAL_ACTION_CONV_RESULT:
4522 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4523 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4524 mono_mb_emit_byte (mb, CEE_POP);
4526 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4527 g_free (exception_msg);
4530 case MARSHAL_ACTION_PUSH:
4531 mono_mb_emit_byte (mb, CEE_LDNULL);
4539 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4540 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4543 case MARSHAL_ACTION_CONV_IN:
4545 case MONO_TYPE_CLASS:
4546 case MONO_TYPE_OBJECT:
4547 case MONO_TYPE_STRING:
4548 case MONO_TYPE_ARRAY:
4549 case MONO_TYPE_SZARRAY:
4550 case MONO_TYPE_VALUETYPE:
4554 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4555 g_assert_not_reached ();
4559 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4561 mono_mb_emit_byte (mb, CEE_LDNULL);
4562 mono_mb_emit_stloc (mb, conv_arg);
4564 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4567 /* Minic MS.NET behavior */
4568 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4571 /* Check for null */
4572 mono_mb_emit_ldarg (mb, argnum);
4574 mono_mb_emit_byte (mb, CEE_LDIND_I);
4575 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4577 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4579 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4581 mono_mb_emit_ldarg (mb, argnum);
4583 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4585 if (t->type == MONO_TYPE_VALUETYPE) {
4587 * Since we can't determine the type of the argument, we
4588 * will assume the unmanaged function takes a pointer.
4590 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4592 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4595 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4596 mono_mb_emit_stloc (mb, conv_arg);
4598 mono_mb_patch_branch (mb, pos2);
4601 case MARSHAL_ACTION_CONV_OUT:
4602 /* Check for null */
4603 mono_mb_emit_ldloc (mb, conv_arg);
4604 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4607 mono_mb_emit_ldarg (mb, argnum);
4609 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4611 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4613 mono_mb_emit_ldloc (mb, conv_arg);
4614 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4615 mono_mb_emit_byte (mb, CEE_STIND_REF);
4616 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4617 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4619 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4621 mono_mb_emit_ldloc (mb, conv_arg);
4622 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4624 /* We have nowhere to store the result */
4625 mono_mb_emit_byte (mb, CEE_POP);
4628 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4630 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4632 mono_mb_emit_ldloc (mb, conv_arg);
4634 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4636 mono_mb_patch_branch (mb, pos2);
4639 case MARSHAL_ACTION_PUSH:
4641 mono_mb_emit_ldloc_addr (mb, conv_arg);
4643 mono_mb_emit_ldloc (mb, conv_arg);
4646 case MARSHAL_ACTION_CONV_RESULT:
4647 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4649 mono_mb_emit_stloc (mb, 3);
4651 mono_mb_emit_ldloc (mb, 3);
4652 mono_mb_emit_stloc (mb, loc1);
4654 /* Check for null */
4655 mono_mb_emit_ldloc (mb, 3);
4656 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4658 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4660 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4661 mono_mb_emit_byte (mb, CEE_DUP);
4663 mono_mb_emit_ldloc (mb, 3);
4664 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4665 mono_mb_emit_stloc (mb, 3);
4667 mono_mb_emit_ldloc (mb, loc1);
4668 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4670 mono_mb_patch_branch (mb, pos2);
4673 case MARSHAL_ACTION_MANAGED_CONV_IN:
4674 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4676 mono_mb_emit_byte (mb, CEE_LDNULL);
4677 mono_mb_emit_stloc (mb, conv_arg);
4679 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4682 /* Check for null */
4683 mono_mb_emit_ldarg (mb, argnum);
4685 mono_mb_emit_byte (mb, CEE_LDIND_I);
4686 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4688 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4689 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4691 mono_mb_emit_ldarg (mb, argnum);
4693 mono_mb_emit_byte (mb, CEE_LDIND_I);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4696 mono_mb_emit_stloc (mb, conv_arg);
4698 mono_mb_patch_branch (mb, pos2);
4701 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4702 g_assert (!t->byref);
4704 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4706 mono_mb_emit_stloc (mb, 3);
4708 mono_mb_emit_ldloc (mb, 3);
4709 mono_mb_emit_stloc (mb, loc1);
4711 /* Check for null */
4712 mono_mb_emit_ldloc (mb, 3);
4713 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4715 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4716 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4717 mono_mb_emit_byte (mb, CEE_DUP);
4719 mono_mb_emit_ldloc (mb, 3);
4720 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4721 mono_mb_emit_stloc (mb, 3);
4723 mono_mb_emit_ldloc (mb, loc1);
4724 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4726 mono_mb_patch_branch (mb, pos2);
4729 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4731 /* Check for null */
4732 mono_mb_emit_ldloc (mb, conv_arg);
4733 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4736 mono_mb_emit_ldarg (mb, argnum);
4738 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4740 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4742 mono_mb_emit_ldloc (mb, conv_arg);
4743 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4744 mono_mb_emit_byte (mb, CEE_STIND_I);
4747 /* Call CleanUpManagedData */
4748 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4750 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4752 mono_mb_emit_ldloc (mb, conv_arg);
4753 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4755 mono_mb_patch_branch (mb, pos2);
4759 g_assert_not_reached ();
4767 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4768 MonoMarshalSpec *spec,
4769 int conv_arg, MonoType **conv_arg_type,
4770 MarshalAction action)
4773 MonoMethodBuilder *mb = m->mb;
4776 case MARSHAL_ACTION_CONV_IN: {
4777 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4779 g_assert (t->type == MONO_TYPE_OBJECT);
4780 g_assert (!t->byref);
4782 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4783 mono_mb_emit_ldarg (mb, argnum);
4784 mono_mb_emit_icon (mb, encoding);
4785 mono_mb_emit_icon (mb, t->attrs);
4786 mono_mb_emit_icall (mb, mono_marshal_asany);
4787 mono_mb_emit_stloc (mb, conv_arg);
4791 case MARSHAL_ACTION_PUSH:
4792 mono_mb_emit_ldloc (mb, conv_arg);
4795 case MARSHAL_ACTION_CONV_OUT: {
4796 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4798 mono_mb_emit_ldarg (mb, argnum);
4799 mono_mb_emit_ldloc (mb, conv_arg);
4800 mono_mb_emit_icon (mb, encoding);
4801 mono_mb_emit_icon (mb, t->attrs);
4802 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4807 g_assert_not_reached ();
4814 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4815 MonoMarshalSpec *spec,
4816 int conv_arg, MonoType **conv_arg_type,
4817 MarshalAction action)
4820 MonoMethodBuilder *mb = m->mb;
4821 MonoClass *klass, *date_time_class;
4824 klass = mono_class_from_mono_type (t);
4826 date_time_class = mono_class_get_date_time_class ();
4829 case MARSHAL_ACTION_CONV_IN:
4830 if (klass == date_time_class) {
4831 /* Convert it to an OLE DATE type */
4832 static MonoMethod *to_oadate;
4835 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4836 g_assert (to_oadate);
4838 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4841 mono_mb_emit_ldarg (mb, argnum);
4842 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4845 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4847 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4849 mono_mb_emit_ldarg_addr (mb, argnum);
4850 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4851 mono_mb_emit_stloc (mb, conv_arg);
4855 mono_mb_patch_branch (mb, pos);
4859 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4860 klass->blittable || klass->enumtype)
4863 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4865 /* store the address of the source into local variable 0 */
4867 mono_mb_emit_ldarg (mb, argnum);
4869 mono_mb_emit_ldarg_addr (mb, argnum);
4871 mono_mb_emit_stloc (mb, 0);
4873 /* allocate space for the native struct and
4874 * store the address into local variable 1 (dest) */
4875 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4876 mono_mb_emit_byte (mb, CEE_PREFIX1);
4877 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4878 mono_mb_emit_stloc (mb, conv_arg);
4881 mono_mb_emit_ldloc (mb, 0);
4882 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4885 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4887 mono_mb_emit_ldloc (mb, conv_arg);
4888 mono_mb_emit_stloc (mb, 1);
4890 /* emit valuetype conversion code */
4891 emit_struct_conv (mb, klass, FALSE);
4895 mono_mb_patch_branch (mb, pos);
4898 case MARSHAL_ACTION_PUSH:
4899 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4901 g_assert (!t->byref);
4903 /* Have to change the signature since the vtype is passed byref */
4904 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4906 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4907 klass->blittable || klass->enumtype)
4908 mono_mb_emit_ldarg_addr (mb, argnum);
4910 mono_mb_emit_ldloc (mb, conv_arg);
4914 if (klass == date_time_class) {
4916 mono_mb_emit_ldloc_addr (mb, conv_arg);
4918 mono_mb_emit_ldloc (mb, conv_arg);
4922 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4923 klass->blittable || klass->enumtype) {
4924 mono_mb_emit_ldarg (mb, argnum);
4927 mono_mb_emit_ldloc (mb, conv_arg);
4929 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4930 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4934 case MARSHAL_ACTION_CONV_OUT:
4935 if (klass == date_time_class) {
4936 /* Convert from an OLE DATE type */
4937 static MonoMethod *from_oadate;
4942 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4944 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4945 g_assert (from_oadate);
4947 mono_mb_emit_ldarg (mb, argnum);
4948 mono_mb_emit_ldloc (mb, conv_arg);
4949 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4950 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4955 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4956 klass->blittable || klass->enumtype)
4960 /* dst = argument */
4961 mono_mb_emit_ldarg (mb, argnum);
4962 mono_mb_emit_stloc (mb, 1);
4964 mono_mb_emit_ldloc (mb, 1);
4965 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4967 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4968 /* src = tmp_locals [i] */
4969 mono_mb_emit_ldloc (mb, conv_arg);
4970 mono_mb_emit_stloc (mb, 0);
4972 /* emit valuetype conversion code */
4973 emit_struct_conv (mb, klass, TRUE);
4977 emit_struct_free (mb, klass, conv_arg);
4980 mono_mb_patch_branch (mb, pos);
4983 case MARSHAL_ACTION_CONV_RESULT:
4984 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4986 mono_mb_emit_stloc (mb, 3);
4990 /* load pointer to returned value type */
4991 g_assert (m->vtaddr_var);
4992 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4993 /* store the address of the source into local variable 0 */
4994 mono_mb_emit_stloc (mb, 0);
4996 mono_mb_emit_ldloc_addr (mb, 3);
4997 mono_mb_emit_stloc (mb, 1);
4999 /* emit valuetype conversion code */
5000 emit_struct_conv (mb, klass, TRUE);
5003 case MARSHAL_ACTION_MANAGED_CONV_IN:
5004 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5005 klass->blittable || klass->enumtype) {
5010 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5012 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5016 mono_mb_emit_ldarg (mb, argnum);
5018 mono_mb_emit_ldarg_addr (mb, argnum);
5019 mono_mb_emit_stloc (mb, 0);
5022 mono_mb_emit_ldloc (mb, 0);
5023 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5026 mono_mb_emit_ldloc_addr (mb, conv_arg);
5027 mono_mb_emit_stloc (mb, 1);
5029 /* emit valuetype conversion code */
5030 emit_struct_conv (mb, klass, TRUE);
5033 mono_mb_patch_branch (mb, pos);
5036 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5037 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5038 klass->blittable || klass->enumtype) {
5042 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5045 /* Check for null */
5046 mono_mb_emit_ldarg (mb, argnum);
5047 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5050 mono_mb_emit_ldloc_addr (mb, conv_arg);
5051 mono_mb_emit_stloc (mb, 0);
5054 mono_mb_emit_ldarg (mb, argnum);
5055 mono_mb_emit_stloc (mb, 1);
5057 /* emit valuetype conversion code */
5058 emit_struct_conv (mb, klass, FALSE);
5060 mono_mb_patch_branch (mb, pos2);
5063 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5064 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5065 klass->blittable || klass->enumtype) {
5066 mono_mb_emit_stloc (mb, 3);
5071 /* load pointer to returned value type */
5072 g_assert (m->vtaddr_var);
5073 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5075 /* store the address of the source into local variable 0 */
5076 mono_mb_emit_stloc (mb, 0);
5077 /* allocate space for the native struct and
5078 * store the address into dst_ptr */
5079 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5080 m->retobj_class = klass;
5081 g_assert (m->retobj_var);
5082 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5083 mono_mb_emit_byte (mb, CEE_CONV_I);
5084 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5085 mono_mb_emit_stloc (mb, 1);
5086 mono_mb_emit_ldloc (mb, 1);
5087 mono_mb_emit_stloc (mb, m->retobj_var);
5089 /* emit valuetype conversion code */
5090 emit_struct_conv (mb, klass, FALSE);
5094 g_assert_not_reached ();
5101 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5102 MonoMarshalSpec *spec,
5103 int conv_arg, MonoType **conv_arg_type,
5104 MarshalAction action)
5108 case MARSHAL_ACTION_CONV_IN:
5109 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5111 case MARSHAL_ACTION_MANAGED_CONV_IN:
5112 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5116 MonoMethodBuilder *mb = m->mb;
5117 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5118 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5122 case MARSHAL_ACTION_CONV_IN:
5123 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5124 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5127 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5130 mono_mb_emit_ldarg (mb, argnum);
5131 mono_mb_emit_byte (mb, CEE_LDIND_I);
5133 mono_mb_emit_ldarg (mb, argnum);
5136 if (conv == MONO_MARSHAL_CONV_INVALID) {
5137 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5138 mono_mb_emit_exception_marshal_directive (mb, msg);
5140 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5142 mono_mb_emit_stloc (mb, conv_arg);
5146 case MARSHAL_ACTION_CONV_OUT:
5147 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5148 if (conv == MONO_MARSHAL_CONV_INVALID) {
5149 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5150 mono_mb_emit_exception_marshal_directive (mb, msg);
5154 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5155 static MonoMethod *m;
5158 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5163 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5164 mono_mb_emit_exception_marshal_directive (mb, msg);
5169 * Have to allocate a new string with the same length as the original, and
5170 * copy the contents of the buffer pointed to by CONV_ARG into it.
5172 g_assert (t->byref);
5173 mono_mb_emit_ldarg (mb, argnum);
5174 mono_mb_emit_ldloc (mb, conv_arg);
5175 mono_mb_emit_ldarg (mb, argnum);
5176 mono_mb_emit_byte (mb, CEE_LDIND_I);
5177 mono_mb_emit_managed_call (mb, m, NULL);
5178 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5179 mono_mb_emit_byte (mb, CEE_STIND_REF);
5180 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5182 mono_mb_emit_ldarg (mb, argnum);
5183 mono_mb_emit_ldloc (mb, conv_arg);
5184 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5185 mono_mb_emit_byte (mb, stind_op);
5190 mono_mb_emit_ldloc (mb, conv_arg);
5191 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5192 mono_mb_emit_icall (mb, mono_free_bstr);
5194 mono_mb_emit_icall (mb, mono_marshal_free);
5198 case MARSHAL_ACTION_PUSH:
5199 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5200 mono_mb_emit_ldloc_addr (mb, conv_arg);
5202 mono_mb_emit_ldloc (mb, conv_arg);
5205 case MARSHAL_ACTION_CONV_RESULT:
5206 mono_mb_emit_stloc (mb, 0);
5208 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5209 if (conv == MONO_MARSHAL_CONV_INVALID) {
5210 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5211 mono_mb_emit_exception_marshal_directive (mb, msg);
5215 mono_mb_emit_ldloc (mb, 0);
5216 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5217 mono_mb_emit_stloc (mb, 3);
5219 /* free the string */
5220 mono_mb_emit_ldloc (mb, 0);
5221 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5222 mono_mb_emit_icall (mb, mono_free_bstr);
5224 mono_mb_emit_icall (mb, mono_marshal_free);
5227 case MARSHAL_ACTION_MANAGED_CONV_IN:
5228 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5230 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5233 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5237 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5238 if (conv == MONO_MARSHAL_CONV_INVALID) {
5239 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5240 mono_mb_emit_exception_marshal_directive (mb, msg);
5244 mono_mb_emit_ldarg (mb, argnum);
5246 mono_mb_emit_byte (mb, CEE_LDIND_I);
5247 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5248 mono_mb_emit_stloc (mb, conv_arg);
5251 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5255 mono_mb_emit_ldarg (mb, argnum);
5256 mono_mb_emit_ldloc (mb, conv_arg);
5257 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5258 mono_mb_emit_byte (mb, stind_op);
5263 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5264 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5265 /* We need to make a copy so the caller is able to free it */
5266 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5268 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5269 mono_mb_emit_stloc (mb, 3);
5273 g_assert_not_reached ();
5281 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5282 MonoMarshalSpec *spec, int conv_arg,
5283 MonoType **conv_arg_type, MarshalAction action)
5286 if (action == MARSHAL_ACTION_CONV_IN)
5287 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5289 MonoMethodBuilder *mb = m->mb;
5292 case MARSHAL_ACTION_CONV_IN: {
5293 MonoType *intptr_type;
5294 int dar_release_slot, pos;
5296 intptr_type = &mono_defaults.int_class->byval_arg;
5297 conv_arg = mono_mb_add_local (mb, intptr_type);
5298 *conv_arg_type = intptr_type;
5300 if (!sh_dangerous_add_ref)
5301 init_safe_handle ();
5303 mono_mb_emit_ldarg (mb, argnum);
5304 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5305 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5307 mono_mb_patch_branch (mb, pos);
5310 * My tests in show that ref SafeHandles are not really
5311 * passed as ref objects. Instead a NULL is passed as the
5314 mono_mb_emit_icon (mb, 0);
5315 mono_mb_emit_stloc (mb, conv_arg);
5319 /* Create local to hold the ref parameter to DangerousAddRef */
5320 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5322 /* set release = false; */
5323 mono_mb_emit_icon (mb, 0);
5324 mono_mb_emit_stloc (mb, dar_release_slot);
5326 /* safehandle.DangerousAddRef (ref release) */
5327 mono_mb_emit_ldarg (mb, argnum);
5328 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5329 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5331 /* Pull the handle field from SafeHandle */
5332 mono_mb_emit_ldarg (mb, argnum);
5333 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5334 mono_mb_emit_byte (mb, CEE_LDIND_I);
5335 mono_mb_emit_stloc (mb, conv_arg);
5340 case MARSHAL_ACTION_PUSH:
5342 mono_mb_emit_ldloc_addr (mb, conv_arg);
5344 mono_mb_emit_ldloc (mb, conv_arg);
5347 case MARSHAL_ACTION_CONV_OUT: {
5348 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5349 int dar_release_slot = conv_arg + 1;
5352 if (!sh_dangerous_release)
5353 init_safe_handle ();
5359 * My tests indicate that ref SafeHandles parameters are not actually
5360 * passed by ref, but instead a new Handle is created regardless of
5361 * whether a change happens in the unmanaged side.
5363 * Also, the Handle is created before calling into unmanaged code,
5364 * but we do not support that mechanism (getting to the original
5365 * handle) and it makes no difference where we create this
5367 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5369 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5372 /* refval = new SafeHandleDerived ()*/
5373 mono_mb_emit_ldarg (mb, argnum);
5374 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5375 mono_mb_emit_byte (mb, CEE_STIND_REF);
5377 /* refval.handle = returned_handle */
5378 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5380 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5381 mono_mb_emit_ldloc (mb, conv_arg);
5382 mono_mb_emit_byte (mb, CEE_STIND_I);
5384 mono_mb_emit_ldloc (mb, dar_release_slot);
5385 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5386 mono_mb_emit_ldarg (mb, argnum);
5387 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5388 mono_mb_patch_branch (mb, label_next);
5393 case MARSHAL_ACTION_CONV_RESULT: {
5394 MonoMethod *ctor = NULL;
5395 int intptr_handle_slot;
5397 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5398 mono_mb_emit_byte (mb, CEE_POP);
5399 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5403 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5405 mono_mb_emit_byte (mb, CEE_POP);
5406 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5409 /* Store the IntPtr results into a local */
5410 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5411 mono_mb_emit_stloc (mb, intptr_handle_slot);
5413 /* Create return value */
5414 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5415 mono_mb_emit_stloc (mb, 3);
5417 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5418 mono_mb_emit_ldloc (mb, 3);
5419 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5420 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5421 mono_mb_emit_byte (mb, CEE_STIND_I);
5425 case MARSHAL_ACTION_MANAGED_CONV_IN:
5426 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5429 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5430 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5433 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5434 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5437 printf ("Unhandled case for MarshalAction: %d\n", action);
5445 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5446 MonoMarshalSpec *spec, int conv_arg,
5447 MonoType **conv_arg_type, MarshalAction action)
5450 if (action == MARSHAL_ACTION_CONV_IN)
5451 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5453 MonoMethodBuilder *mb = m->mb;
5456 case MARSHAL_ACTION_CONV_IN: {
5457 MonoType *intptr_type;
5459 intptr_type = &mono_defaults.int_class->byval_arg;
5460 conv_arg = mono_mb_add_local (mb, intptr_type);
5461 *conv_arg_type = intptr_type;
5464 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5465 mono_mb_emit_exception_marshal_directive (mb, msg);
5468 mono_mb_emit_ldarg_addr (mb, argnum);
5469 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5470 mono_mb_emit_byte (mb, CEE_ADD);
5471 mono_mb_emit_byte (mb, CEE_LDIND_I);
5472 mono_mb_emit_stloc (mb, conv_arg);
5476 case MARSHAL_ACTION_PUSH:
5477 mono_mb_emit_ldloc (mb, conv_arg);
5480 case MARSHAL_ACTION_CONV_OUT: {
5481 /* no resource release required */
5485 case MARSHAL_ACTION_CONV_RESULT: {
5486 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5487 mono_mb_emit_exception_marshal_directive (mb, msg);
5491 case MARSHAL_ACTION_MANAGED_CONV_IN:
5492 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5495 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5496 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5499 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5500 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5503 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5511 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5512 MonoMarshalSpec *spec,
5513 int conv_arg, MonoType **conv_arg_type,
5514 MarshalAction action)
5517 if (action == MARSHAL_ACTION_CONV_IN)
5518 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5520 MonoMethodBuilder *mb = m->mb;
5521 MonoClass *klass = mono_class_from_mono_type (t);
5525 case MARSHAL_ACTION_CONV_IN:
5526 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5527 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5529 m->orig_conv_args [argnum] = 0;
5531 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5532 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5533 mono_mb_emit_exception_marshal_directive (mb, msg);
5537 if (klass->delegate) {
5539 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5540 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5541 mono_mb_emit_exception_marshal_directive (mb, msg);
5543 mono_mb_emit_byte (mb, CEE_LDNULL);
5544 mono_mb_emit_stloc (mb, conv_arg);
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5548 mono_mb_emit_stloc (mb, conv_arg);
5550 } else if (klass == mono_defaults.stringbuilder_class) {
5551 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5552 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5556 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5557 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5558 mono_mb_emit_exception_marshal_directive (mb, msg);
5564 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5567 if (conv == MONO_MARSHAL_CONV_INVALID) {
5568 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5569 mono_mb_emit_exception_marshal_directive (mb, msg);
5573 mono_mb_emit_ldarg (mb, argnum);
5575 mono_mb_emit_byte (mb, CEE_LDIND_I);
5577 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5578 mono_mb_emit_stloc (mb, conv_arg);
5579 } else if (klass->blittable) {
5580 mono_mb_emit_byte (mb, CEE_LDNULL);
5581 mono_mb_emit_stloc (mb, conv_arg);
5583 mono_mb_emit_ldarg (mb, argnum);
5584 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5586 mono_mb_emit_ldarg (mb, argnum);
5587 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5588 mono_mb_emit_stloc (mb, conv_arg);
5590 mono_mb_patch_branch (mb, pos);
5593 mono_mb_emit_byte (mb, CEE_LDNULL);
5594 mono_mb_emit_stloc (mb, conv_arg);
5597 /* we dont need any conversions for out parameters */
5598 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5601 mono_mb_emit_ldarg (mb, argnum);
5602 mono_mb_emit_byte (mb, CEE_LDIND_I);
5605 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5607 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5610 /* store the address of the source into local variable 0 */
5611 mono_mb_emit_stloc (mb, 0);
5612 mono_mb_emit_ldloc (mb, 0);
5613 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5615 /* allocate space for the native struct and store the address */
5616 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5617 mono_mb_emit_byte (mb, CEE_PREFIX1);
5618 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5619 mono_mb_emit_stloc (mb, conv_arg);
5622 /* Need to store the original buffer so we can free it later */
5623 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5624 mono_mb_emit_ldloc (mb, conv_arg);
5625 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5628 /* set the src_ptr */
5629 mono_mb_emit_ldloc (mb, 0);
5630 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5631 mono_mb_emit_stloc (mb, 0);
5634 mono_mb_emit_ldloc (mb, conv_arg);
5635 mono_mb_emit_stloc (mb, 1);
5637 /* emit valuetype conversion code */
5638 emit_struct_conv (mb, klass, FALSE);
5640 mono_mb_patch_branch (mb, pos);
5644 case MARSHAL_ACTION_CONV_OUT:
5645 if (klass == mono_defaults.stringbuilder_class) {
5647 MonoMarshalNative encoding;
5648 MonoMarshalConv conv;
5650 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5651 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5653 g_assert (encoding != -1);
5656 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5660 mono_mb_emit_ldarg (mb, argnum);
5661 mono_mb_emit_ldloc (mb, conv_arg);
5664 case MONO_NATIVE_LPWSTR:
5665 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5667 case MONO_NATIVE_LPSTR:
5668 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5671 g_assert_not_reached ();
5674 mono_mb_emit_byte (mb, CEE_STIND_REF);
5676 mono_mb_emit_ldarg (mb, argnum);
5677 mono_mb_emit_ldloc (mb, conv_arg);
5679 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5683 mono_mb_emit_ldloc (mb, conv_arg);
5684 mono_mb_emit_icall (mb, mono_marshal_free);
5689 if (klass->delegate) {
5691 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5693 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5694 mono_mb_emit_ldloc (mb, conv_arg);
5695 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5696 mono_mb_emit_byte (mb, CEE_STIND_REF);
5701 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5702 /* allocate a new object */
5703 mono_mb_emit_ldarg (mb, argnum);
5704 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5705 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5706 mono_mb_emit_byte (mb, CEE_STIND_REF);
5709 /* dst = *argument */
5710 mono_mb_emit_ldarg (mb, argnum);
5713 mono_mb_emit_byte (mb, CEE_LDIND_I);
5715 mono_mb_emit_stloc (mb, 1);
5717 mono_mb_emit_ldloc (mb, 1);
5718 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5720 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5721 mono_mb_emit_ldloc (mb, 1);
5722 mono_mb_emit_icon (mb, sizeof (MonoObject));
5723 mono_mb_emit_byte (mb, CEE_ADD);
5724 mono_mb_emit_stloc (mb, 1);
5726 /* src = tmp_locals [i] */
5727 mono_mb_emit_ldloc (mb, conv_arg);
5728 mono_mb_emit_stloc (mb, 0);
5730 /* emit valuetype conversion code */
5731 emit_struct_conv (mb, klass, TRUE);
5733 /* Free the structure returned by the native code */
5734 emit_struct_free (mb, klass, conv_arg);
5736 if (m->orig_conv_args [argnum]) {
5738 * If the native function changed the pointer, then free
5739 * the original structure plus the new pointer.
5741 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5742 mono_mb_emit_ldloc (mb, conv_arg);
5743 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5745 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5746 g_assert (m->orig_conv_args [argnum]);
5748 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5751 mono_mb_emit_ldloc (mb, conv_arg);
5752 mono_mb_emit_icall (mb, mono_marshal_free);
5754 mono_mb_patch_branch (mb, pos2);
5758 /* Free the original structure passed to native code */
5759 emit_struct_free (mb, klass, conv_arg);
5761 mono_mb_patch_branch (mb, pos);
5764 case MARSHAL_ACTION_PUSH:
5766 mono_mb_emit_ldloc_addr (mb, conv_arg);
5768 mono_mb_emit_ldloc (mb, conv_arg);
5771 case MARSHAL_ACTION_CONV_RESULT:
5772 if (klass->delegate) {
5773 g_assert (!t->byref);
5774 mono_mb_emit_stloc (mb, 0);
5775 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5776 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5777 mono_mb_emit_ldloc (mb, 0);
5778 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5779 mono_mb_emit_stloc (mb, 3);
5782 mono_mb_emit_stloc (mb, 0);
5784 /* Make a copy since emit_conv modifies local 0 */
5785 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5786 mono_mb_emit_ldloc (mb, 0);
5787 mono_mb_emit_stloc (mb, loc);
5789 mono_mb_emit_byte (mb, CEE_LDNULL);
5790 mono_mb_emit_stloc (mb, 3);
5792 mono_mb_emit_ldloc (mb, 0);
5793 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5795 /* allocate result object */
5797 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5798 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5799 mono_mb_emit_stloc (mb, 3);
5803 mono_mb_emit_ldloc (mb, 3);
5804 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5805 mono_mb_emit_stloc (mb, 1);
5807 /* emit conversion code */
5808 emit_struct_conv (mb, klass, TRUE);
5810 emit_struct_free (mb, klass, loc);
5812 /* Free the pointer allocated by unmanaged code */
5813 mono_mb_emit_ldloc (mb, loc);
5814 mono_mb_emit_icall (mb, mono_marshal_free);
5815 mono_mb_patch_branch (mb, pos);
5819 case MARSHAL_ACTION_MANAGED_CONV_IN:
5820 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5822 if (klass->delegate) {
5823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5824 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5825 mono_mb_emit_ldarg (mb, argnum);
5827 mono_mb_emit_byte (mb, CEE_LDIND_I);
5828 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5829 mono_mb_emit_stloc (mb, conv_arg);
5833 if (klass == mono_defaults.stringbuilder_class) {
5834 MonoMarshalNative encoding;
5836 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5839 g_assert (encoding == MONO_NATIVE_LPSTR);
5841 g_assert (!t->byref);
5842 g_assert (encoding != -1);
5844 mono_mb_emit_ldarg (mb, argnum);
5845 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5846 mono_mb_emit_stloc (mb, conv_arg);
5850 /* The class can not have an automatic layout */
5851 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5852 mono_mb_emit_auto_layout_exception (mb, klass);
5856 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5857 mono_mb_emit_byte (mb, CEE_LDNULL);
5858 mono_mb_emit_stloc (mb, conv_arg);
5863 mono_mb_emit_ldarg (mb, argnum);
5867 /* Check for NULL and raise an exception */
5868 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5870 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5872 mono_mb_patch_branch (mb, pos2);
5873 mono_mb_emit_ldarg (mb, argnum);
5874 mono_mb_emit_byte (mb, CEE_LDIND_I);
5877 mono_mb_emit_stloc (mb, 0);
5879 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5880 mono_mb_emit_stloc (mb, conv_arg);
5882 mono_mb_emit_ldloc (mb, 0);
5883 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5885 /* Create and set dst */
5886 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5887 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5888 mono_mb_emit_stloc (mb, conv_arg);
5889 mono_mb_emit_ldloc (mb, conv_arg);
5890 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5891 mono_mb_emit_stloc (mb, 1);
5893 /* emit valuetype conversion code */
5894 emit_struct_conv (mb, klass, TRUE);
5896 mono_mb_patch_branch (mb, pos);
5899 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5900 if (klass->delegate) {
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_ldloc (mb, conv_arg);
5905 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5906 mono_mb_emit_byte (mb, stind_op);
5912 /* Check for null */
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5915 mono_mb_emit_ldarg (mb, argnum);
5916 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5917 mono_mb_emit_byte (mb, CEE_STIND_REF);
5918 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5920 mono_mb_patch_branch (mb, pos);
5923 mono_mb_emit_ldloc (mb, conv_arg);
5924 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5925 mono_mb_emit_stloc (mb, 0);
5927 /* Allocate and set dest */
5928 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5929 mono_mb_emit_byte (mb, CEE_CONV_I);
5930 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5931 mono_mb_emit_stloc (mb, 1);
5933 /* Update argument pointer */
5934 mono_mb_emit_ldarg (mb, argnum);
5935 mono_mb_emit_ldloc (mb, 1);
5936 mono_mb_emit_byte (mb, CEE_STIND_I);
5938 /* emit valuetype conversion code */
5939 emit_struct_conv (mb, klass, FALSE);
5941 mono_mb_patch_branch (mb, pos2);
5942 } else if (klass == mono_defaults.stringbuilder_class) {
5943 // FIXME: What to do here ?
5945 /* byval [Out] marshalling */
5947 /* FIXME: Handle null */
5950 mono_mb_emit_ldloc (mb, conv_arg);
5951 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5952 mono_mb_emit_stloc (mb, 0);
5955 mono_mb_emit_ldarg (mb, argnum);
5956 mono_mb_emit_stloc (mb, 1);
5958 /* emit valuetype conversion code */
5959 emit_struct_conv (mb, klass, FALSE);
5963 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5964 if (klass->delegate) {
5965 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5966 mono_mb_emit_stloc (mb, 3);
5970 /* The class can not have an automatic layout */
5971 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5972 mono_mb_emit_auto_layout_exception (mb, klass);
5976 mono_mb_emit_stloc (mb, 0);
5977 /* Check for null */
5978 mono_mb_emit_ldloc (mb, 0);
5979 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5980 mono_mb_emit_byte (mb, CEE_LDNULL);
5981 mono_mb_emit_stloc (mb, 3);
5982 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5984 mono_mb_patch_branch (mb, pos);
5987 mono_mb_emit_ldloc (mb, 0);
5988 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5989 mono_mb_emit_stloc (mb, 0);
5991 /* Allocate and set dest */
5992 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5993 mono_mb_emit_byte (mb, CEE_CONV_I);
5994 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5995 mono_mb_emit_byte (mb, CEE_DUP);
5996 mono_mb_emit_stloc (mb, 1);
5997 mono_mb_emit_stloc (mb, 3);
5999 emit_struct_conv (mb, klass, FALSE);
6001 mono_mb_patch_branch (mb, pos2);
6005 g_assert_not_reached ();
6016 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6017 MonoMarshalSpec *spec,
6018 int conv_arg, MonoType **conv_arg_type,
6019 MarshalAction action)
6021 MonoMethodBuilder *mb = m->mb;
6022 static MonoMethod *get_object_for_native_variant = NULL;
6023 static MonoMethod *get_native_variant_for_object = NULL;
6025 if (!get_object_for_native_variant)
6026 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6027 g_assert (get_object_for_native_variant);
6029 if (!get_native_variant_for_object)
6030 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6031 g_assert (get_native_variant_for_object);
6034 case MARSHAL_ACTION_CONV_IN: {
6035 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6038 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6040 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6042 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6045 mono_mb_emit_ldarg (mb, argnum);
6047 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6048 mono_mb_emit_ldloc_addr (mb, conv_arg);
6049 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6053 case MARSHAL_ACTION_CONV_OUT: {
6054 static MonoMethod *variant_clear = NULL;
6057 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6058 g_assert (variant_clear);
6061 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6062 mono_mb_emit_ldarg (mb, argnum);
6063 mono_mb_emit_ldloc_addr (mb, conv_arg);
6064 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6065 mono_mb_emit_byte (mb, CEE_STIND_REF);
6068 mono_mb_emit_ldloc_addr (mb, conv_arg);
6069 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6073 case MARSHAL_ACTION_PUSH:
6075 mono_mb_emit_ldloc_addr (mb, conv_arg);
6077 mono_mb_emit_ldloc (mb, conv_arg);
6080 case MARSHAL_ACTION_CONV_RESULT: {
6081 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6082 mono_mb_emit_exception_marshal_directive (mb, msg);
6086 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6087 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6090 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6092 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6094 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6098 mono_mb_emit_ldarg (mb, argnum);
6100 mono_mb_emit_ldarg_addr (mb, argnum);
6101 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6102 mono_mb_emit_stloc (mb, conv_arg);
6106 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6107 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6108 mono_mb_emit_ldloc (mb, conv_arg);
6109 mono_mb_emit_ldarg (mb, argnum);
6110 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6115 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6116 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6117 mono_mb_emit_exception_marshal_directive (mb, msg);
6122 g_assert_not_reached ();
6128 #endif /* DISABLE_COM */
6129 #endif /* DISABLE_JIT */
6132 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6134 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6135 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6137 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6139 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6151 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6152 MonoMarshalSpec *spec,
6153 int conv_arg, MonoType **conv_arg_type,
6154 MarshalAction action)
6158 case MARSHAL_ACTION_CONV_IN:
6159 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6161 case MARSHAL_ACTION_MANAGED_CONV_IN:
6162 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6166 MonoMethodBuilder *mb = m->mb;
6167 MonoClass *klass = mono_class_from_mono_type (t);
6168 gboolean need_convert, need_free;
6169 MonoMarshalNative encoding;
6171 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6174 case MARSHAL_ACTION_CONV_IN:
6175 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6176 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6178 if (klass->element_class->blittable) {
6179 mono_mb_emit_ldarg (mb, argnum);
6181 mono_mb_emit_byte (mb, CEE_LDIND_I);
6182 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6183 mono_mb_emit_stloc (mb, conv_arg);
6186 guint32 label1, label2, label3;
6187 int index_var, src_var, dest_ptr, esize;
6188 MonoMarshalConv conv;
6189 gboolean is_string = FALSE;
6191 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6193 eklass = klass->element_class;
6195 if (eklass == mono_defaults.string_class) {
6197 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6199 else if (eklass == mono_defaults.stringbuilder_class) {
6201 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6204 conv = MONO_MARSHAL_CONV_INVALID;
6206 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6207 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6208 mono_mb_emit_exception_marshal_directive (mb, msg);
6212 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6213 mono_mb_emit_ldarg (mb, argnum);
6215 mono_mb_emit_byte (mb, CEE_LDIND_I);
6216 mono_mb_emit_stloc (mb, src_var);
6219 mono_mb_emit_ldloc (mb, src_var);
6220 mono_mb_emit_stloc (mb, conv_arg);
6221 mono_mb_emit_ldloc (mb, src_var);
6222 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6225 esize = sizeof (gpointer);
6226 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6227 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6229 esize = mono_class_native_size (eklass, NULL);
6231 /* allocate space for the native struct and store the address */
6232 mono_mb_emit_icon (mb, esize);
6233 mono_mb_emit_ldloc (mb, src_var);
6234 mono_mb_emit_byte (mb, CEE_LDLEN);
6236 if (eklass == mono_defaults.string_class) {
6237 /* Make the array bigger for the terminating null */
6238 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6239 mono_mb_emit_byte (mb, CEE_ADD);
6241 mono_mb_emit_byte (mb, CEE_MUL);
6242 mono_mb_emit_byte (mb, CEE_PREFIX1);
6243 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6244 mono_mb_emit_stloc (mb, conv_arg);
6246 mono_mb_emit_ldloc (mb, conv_arg);
6247 mono_mb_emit_stloc (mb, dest_ptr);
6249 /* Emit marshalling loop */
6250 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6251 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6252 mono_mb_emit_stloc (mb, index_var);
6253 label2 = mono_mb_get_label (mb);
6254 mono_mb_emit_ldloc (mb, index_var);
6255 mono_mb_emit_ldloc (mb, src_var);
6256 mono_mb_emit_byte (mb, CEE_LDLEN);
6257 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6259 /* Emit marshalling code */
6263 mono_mb_emit_ldloc (mb, dest_ptr);
6264 mono_mb_emit_ldloc (mb, src_var);
6265 mono_mb_emit_ldloc (mb, index_var);
6266 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6267 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6268 mono_mb_emit_byte (mb, stind_op);
6270 /* set the src_ptr */
6271 mono_mb_emit_ldloc (mb, src_var);
6272 mono_mb_emit_ldloc (mb, index_var);
6273 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6274 mono_mb_emit_stloc (mb, 0);
6277 mono_mb_emit_ldloc (mb, dest_ptr);
6278 mono_mb_emit_stloc (mb, 1);
6280 /* emit valuetype conversion code */
6281 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6284 mono_mb_emit_add_to_local (mb, index_var, 1);
6285 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6287 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6289 mono_mb_patch_branch (mb, label3);
6291 if (eklass == mono_defaults.string_class) {
6292 /* Null terminate */
6293 mono_mb_emit_ldloc (mb, dest_ptr);
6294 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6295 mono_mb_emit_byte (mb, CEE_STIND_REF);
6298 mono_mb_patch_branch (mb, label1);
6303 case MARSHAL_ACTION_CONV_OUT:
6304 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6305 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);
6306 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6309 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6310 int param_num = spec->data.array_data.param_num;
6311 MonoType *param_type;
6313 param_type = m->sig->params [param_num];
6315 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6316 char *msg = g_strdup ("Not implemented.");
6317 mono_mb_emit_exception_marshal_directive (mb, msg);
6322 mono_mb_emit_ldarg (mb, argnum);
6324 /* Create the managed array */
6325 mono_mb_emit_ldarg (mb, param_num);
6326 if (m->sig->params [param_num]->byref)
6327 // FIXME: Support other types
6328 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6329 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6330 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6331 /* Store into argument */
6332 mono_mb_emit_byte (mb, CEE_STIND_REF);
6336 if (need_convert || need_free) {
6337 /* FIXME: Optimize blittable case */
6339 guint32 label1, label2, label3;
6340 int index_var, src_ptr, loc, esize;
6342 eklass = klass->element_class;
6343 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6344 esize = sizeof (gpointer);
6345 else if (eklass == mono_defaults.char_class)
6346 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6348 esize = mono_class_native_size (eklass, NULL);
6349 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6350 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6353 mono_mb_emit_ldarg (mb, argnum);
6355 mono_mb_emit_byte (mb, CEE_LDIND_I);
6356 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6358 mono_mb_emit_ldloc (mb, conv_arg);
6359 mono_mb_emit_stloc (mb, src_ptr);
6361 /* Emit marshalling loop */
6362 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6363 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6364 mono_mb_emit_stloc (mb, index_var);
6365 label2 = mono_mb_get_label (mb);
6366 mono_mb_emit_ldloc (mb, index_var);
6367 mono_mb_emit_ldarg (mb, argnum);
6369 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6370 mono_mb_emit_byte (mb, CEE_LDLEN);
6371 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6373 /* Emit marshalling code */
6375 if (eklass == mono_defaults.stringbuilder_class) {
6376 gboolean need_free2;
6377 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6379 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6382 mono_mb_emit_ldarg (mb, argnum);
6384 mono_mb_emit_byte (mb, CEE_LDIND_I);
6385 mono_mb_emit_ldloc (mb, index_var);
6386 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6389 mono_mb_emit_ldloc (mb, src_ptr);
6390 mono_mb_emit_byte (mb, CEE_LDIND_I);
6392 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6396 mono_mb_emit_ldloc (mb, src_ptr);
6397 mono_mb_emit_byte (mb, CEE_LDIND_I);
6399 mono_mb_emit_icall (mb, mono_marshal_free);
6402 else if (eklass == mono_defaults.string_class) {
6405 mono_mb_emit_ldloc (mb, src_ptr);
6406 mono_mb_emit_byte (mb, CEE_LDIND_I);
6408 mono_mb_emit_icall (mb, mono_marshal_free);
6413 /* set the src_ptr */
6414 mono_mb_emit_ldloc (mb, src_ptr);
6415 mono_mb_emit_stloc (mb, 0);
6418 mono_mb_emit_ldarg (mb, argnum);
6420 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6421 mono_mb_emit_ldloc (mb, index_var);
6422 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6423 mono_mb_emit_stloc (mb, 1);
6425 /* emit valuetype conversion code */
6426 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6430 mono_mb_emit_ldloc (mb, src_ptr);
6431 mono_mb_emit_stloc (mb, loc);
6432 mono_mb_emit_ldloc (mb, loc);
6434 emit_struct_free (mb, eklass, loc);
6438 mono_mb_emit_add_to_local (mb, index_var, 1);
6439 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6441 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6443 mono_mb_patch_branch (mb, label1);
6444 mono_mb_patch_branch (mb, label3);
6447 if (klass->element_class->blittable) {
6448 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6450 mono_mb_emit_ldarg (mb, argnum);
6452 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6453 mono_mb_emit_ldloc (mb, conv_arg);
6454 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6459 case MARSHAL_ACTION_PUSH:
6461 mono_mb_emit_ldloc_addr (mb, conv_arg);
6463 mono_mb_emit_ldloc (mb, conv_arg);
6466 case MARSHAL_ACTION_CONV_RESULT:
6467 /* fixme: we need conversions here */
6468 mono_mb_emit_stloc (mb, 3);
6471 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6473 guint32 label1, label2, label3;
6474 int index_var, src_ptr, esize, param_num, num_elem;
6475 MonoMarshalConv conv;
6476 gboolean is_string = FALSE;
6478 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6479 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6482 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6483 mono_mb_emit_exception_marshal_directive (mb, msg);
6487 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6488 mono_mb_emit_exception_marshal_directive (mb, msg);
6491 if (spec->native != MONO_NATIVE_LPARRAY) {
6492 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6493 mono_mb_emit_exception_marshal_directive (mb, msg);
6497 /* FIXME: t is from the method which is wrapped, not the delegate type */
6498 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6500 param_num = spec->data.array_data.param_num;
6501 num_elem = spec->data.array_data.num_elem;
6502 if (spec->data.array_data.elem_mult == 0)
6503 /* param_num is not specified */
6506 if (param_num == -1) {
6507 if (num_elem <= 0) {
6508 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6509 mono_mb_emit_exception_marshal_directive (mb, msg);
6514 /* FIXME: Optimize blittable case */
6516 eklass = klass->element_class;
6517 if (eklass == mono_defaults.string_class) {
6519 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6521 else if (eklass == mono_defaults.stringbuilder_class) {
6523 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6526 conv = MONO_MARSHAL_CONV_INVALID;
6528 mono_marshal_load_type_info (eklass);
6531 esize = sizeof (gpointer);
6533 esize = mono_class_native_size (eklass, NULL);
6534 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6536 mono_mb_emit_byte (mb, CEE_LDNULL);
6537 mono_mb_emit_stloc (mb, conv_arg);
6539 /* Check param index */
6540 if (param_num != -1) {
6541 if (param_num >= m->sig->param_count) {
6542 char *msg = g_strdup ("Array size control parameter index is out of range.");
6543 mono_mb_emit_exception_marshal_directive (mb, msg);
6546 switch (m->sig->params [param_num]->type) {
6559 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6560 mono_mb_emit_exception_marshal_directive (mb, msg);
6567 mono_mb_emit_ldarg (mb, argnum);
6568 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6570 mono_mb_emit_ldarg (mb, argnum);
6571 mono_mb_emit_stloc (mb, src_ptr);
6573 /* Create managed array */
6575 * The LPArray marshalling spec says that sometimes param_num starts
6576 * from 1, sometimes it starts from 0. But MS seems to allways start
6580 if (param_num == -1) {
6581 mono_mb_emit_icon (mb, num_elem);
6583 mono_mb_emit_ldarg (mb, param_num);
6585 mono_mb_emit_icon (mb, num_elem);
6586 mono_mb_emit_byte (mb, CEE_ADD);
6588 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6591 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6592 mono_mb_emit_stloc (mb, conv_arg);
6594 if (eklass->blittable) {
6595 mono_mb_emit_ldloc (mb, conv_arg);
6596 mono_mb_emit_byte (mb, CEE_CONV_I);
6597 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6598 mono_mb_emit_byte (mb, CEE_ADD);
6599 mono_mb_emit_ldarg (mb, argnum);
6600 mono_mb_emit_ldloc (mb, conv_arg);
6601 mono_mb_emit_byte (mb, CEE_LDLEN);
6602 mono_mb_emit_icon (mb, esize);
6603 mono_mb_emit_byte (mb, CEE_MUL);
6604 mono_mb_emit_byte (mb, CEE_PREFIX1);
6605 mono_mb_emit_byte (mb, CEE_CPBLK);
6609 /* Emit marshalling loop */
6610 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6611 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6612 mono_mb_emit_stloc (mb, index_var);
6613 label2 = mono_mb_get_label (mb);
6614 mono_mb_emit_ldloc (mb, index_var);
6615 mono_mb_emit_ldloc (mb, conv_arg);
6616 mono_mb_emit_byte (mb, CEE_LDLEN);
6617 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6619 /* Emit marshalling code */
6621 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6623 mono_mb_emit_ldloc (mb, conv_arg);
6624 mono_mb_emit_ldloc (mb, index_var);
6626 mono_mb_emit_ldloc (mb, src_ptr);
6627 mono_mb_emit_byte (mb, CEE_LDIND_I);
6629 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6630 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6633 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6634 mono_mb_emit_exception_marshal_directive (mb, msg);
6638 mono_mb_emit_add_to_local (mb, index_var, 1);
6639 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6641 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6643 mono_mb_patch_branch (mb, label1);
6644 mono_mb_patch_branch (mb, label3);
6648 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6650 guint32 label1, label2, label3;
6651 int index_var, dest_ptr, esize, param_num, num_elem;
6652 MonoMarshalConv conv;
6653 gboolean is_string = FALSE;
6656 /* Already handled in CONV_IN */
6659 /* These are already checked in CONV_IN */
6660 g_assert (!t->byref);
6661 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6662 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6664 param_num = spec->data.array_data.param_num;
6665 num_elem = spec->data.array_data.num_elem;
6667 if (spec->data.array_data.elem_mult == 0)
6668 /* param_num is not specified */
6671 if (param_num == -1) {
6672 if (num_elem <= 0) {
6673 g_assert_not_reached ();
6677 /* FIXME: Optimize blittable case */
6679 eklass = klass->element_class;
6680 if (eklass == mono_defaults.string_class) {
6682 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6684 else if (eklass == mono_defaults.stringbuilder_class) {
6686 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6689 conv = MONO_MARSHAL_CONV_INVALID;
6691 mono_marshal_load_type_info (eklass);
6694 esize = sizeof (gpointer);
6696 esize = mono_class_native_size (eklass, NULL);
6698 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6701 mono_mb_emit_ldloc (mb, conv_arg);
6702 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6704 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_stloc (mb, dest_ptr);
6707 if (eklass->blittable) {
6709 mono_mb_emit_ldarg (mb, argnum);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6712 mono_mb_emit_byte (mb, CEE_CONV_I);
6713 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6714 mono_mb_emit_byte (mb, CEE_ADD);
6716 mono_mb_emit_ldloc (mb, conv_arg);
6717 mono_mb_emit_byte (mb, CEE_LDLEN);
6718 mono_mb_emit_icon (mb, esize);
6719 mono_mb_emit_byte (mb, CEE_MUL);
6720 mono_mb_emit_byte (mb, CEE_PREFIX1);
6721 mono_mb_emit_byte (mb, CEE_CPBLK);
6725 /* Emit marshalling loop */
6726 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6727 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6728 mono_mb_emit_stloc (mb, index_var);
6729 label2 = mono_mb_get_label (mb);
6730 mono_mb_emit_ldloc (mb, index_var);
6731 mono_mb_emit_ldloc (mb, conv_arg);
6732 mono_mb_emit_byte (mb, CEE_LDLEN);
6733 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6735 /* Emit marshalling code */
6738 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6741 mono_mb_emit_ldloc (mb, dest_ptr);
6744 mono_mb_emit_ldloc (mb, conv_arg);
6745 mono_mb_emit_ldloc (mb, index_var);
6747 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6749 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6750 mono_mb_emit_byte (mb, stind_op);
6753 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6754 mono_mb_emit_exception_marshal_directive (mb, msg);
6758 mono_mb_emit_add_to_local (mb, index_var, 1);
6759 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6761 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6763 mono_mb_patch_branch (mb, label1);
6764 mono_mb_patch_branch (mb, label3);
6768 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6770 guint32 label1, label2, label3;
6771 int index_var, src, dest, esize;
6772 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6773 gboolean is_string = FALSE;
6775 g_assert (!t->byref);
6777 eklass = klass->element_class;
6779 mono_marshal_load_type_info (eklass);
6781 if (eklass == mono_defaults.string_class) {
6783 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6786 g_assert_not_reached ();
6790 esize = sizeof (gpointer);
6791 else if (eklass == mono_defaults.char_class)
6792 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6794 esize = mono_class_native_size (eklass, NULL);
6796 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6797 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6799 mono_mb_emit_stloc (mb, src);
6800 mono_mb_emit_ldloc (mb, src);
6801 mono_mb_emit_stloc (mb, 3);
6803 /* Check for null */
6804 mono_mb_emit_ldloc (mb, src);
6805 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6807 /* Allocate native array */
6808 mono_mb_emit_icon (mb, esize);
6809 mono_mb_emit_ldloc (mb, src);
6810 mono_mb_emit_byte (mb, CEE_LDLEN);
6812 if (eklass == mono_defaults.string_class) {
6813 /* Make the array bigger for the terminating null */
6814 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6815 mono_mb_emit_byte (mb, CEE_ADD);
6817 mono_mb_emit_byte (mb, CEE_MUL);
6818 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6819 mono_mb_emit_stloc (mb, dest);
6820 mono_mb_emit_ldloc (mb, dest);
6821 mono_mb_emit_stloc (mb, 3);
6823 /* Emit marshalling loop */
6824 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6825 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6826 mono_mb_emit_stloc (mb, index_var);
6827 label2 = mono_mb_get_label (mb);
6828 mono_mb_emit_ldloc (mb, index_var);
6829 mono_mb_emit_ldloc (mb, src);
6830 mono_mb_emit_byte (mb, CEE_LDLEN);
6831 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6833 /* Emit marshalling code */
6836 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6839 mono_mb_emit_ldloc (mb, dest);
6842 mono_mb_emit_ldloc (mb, src);
6843 mono_mb_emit_ldloc (mb, index_var);
6845 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6847 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6848 mono_mb_emit_byte (mb, stind_op);
6851 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6852 mono_mb_emit_exception_marshal_directive (mb, msg);
6856 mono_mb_emit_add_to_local (mb, index_var, 1);
6857 mono_mb_emit_add_to_local (mb, dest, esize);
6859 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6861 mono_mb_patch_branch (mb, label3);
6862 mono_mb_patch_branch (mb, label1);
6866 g_assert_not_reached ();
6873 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6876 return &mono_defaults.int32_class->byval_arg;
6878 switch (spec->native) {
6879 case MONO_NATIVE_I1:
6880 case MONO_NATIVE_U1:
6881 return &mono_defaults.byte_class->byval_arg;
6882 case MONO_NATIVE_VARIANTBOOL:
6883 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6884 return &mono_defaults.int16_class->byval_arg;
6885 case MONO_NATIVE_BOOLEAN:
6886 return &mono_defaults.int32_class->byval_arg;
6888 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6889 return &mono_defaults.int32_class->byval_arg;
6895 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6897 MonoClass* conv_arg_class = mono_defaults.int32_class;
6899 switch (spec->native) {
6900 case MONO_NATIVE_I1:
6901 case MONO_NATIVE_U1:
6902 conv_arg_class = mono_defaults.byte_class;
6903 if (ldop) *ldop = CEE_LDIND_I1;
6905 case MONO_NATIVE_VARIANTBOOL:
6906 conv_arg_class = mono_defaults.int16_class;
6907 if (ldop) *ldop = CEE_LDIND_I2;
6909 case MONO_NATIVE_BOOLEAN:
6912 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6915 return conv_arg_class;
6919 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6920 MonoMarshalSpec *spec,
6921 int conv_arg, MonoType **conv_arg_type,
6922 MarshalAction action)
6926 case MARSHAL_ACTION_CONV_IN:
6928 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6930 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6933 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6934 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6936 *conv_arg_type = &conv_arg_class->this_arg;
6938 *conv_arg_type = &conv_arg_class->byval_arg;
6944 MonoMethodBuilder *mb = m->mb;
6947 case MARSHAL_ACTION_CONV_IN: {
6948 MonoType *local_type;
6950 guint8 ldc_op = CEE_LDC_I4_1;
6952 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6954 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6956 *conv_arg_type = local_type;
6957 conv_arg = mono_mb_add_local (mb, local_type);
6959 mono_mb_emit_ldarg (mb, argnum);
6961 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6962 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6963 mono_mb_emit_byte (mb, ldc_op);
6964 mono_mb_emit_stloc (mb, conv_arg);
6965 mono_mb_patch_branch (mb, label_false);
6970 case MARSHAL_ACTION_CONV_OUT:
6972 int label_false, label_end;
6976 mono_mb_emit_ldarg (mb, argnum);
6977 mono_mb_emit_ldloc (mb, conv_arg);
6979 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6980 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6982 label_end = mono_mb_emit_branch (mb, CEE_BR);
6983 mono_mb_patch_branch (mb, label_false);
6984 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6985 mono_mb_patch_branch (mb, label_end);
6987 mono_mb_emit_byte (mb, CEE_STIND_I1);
6991 case MARSHAL_ACTION_PUSH:
6993 mono_mb_emit_ldloc_addr (mb, conv_arg);
6995 mono_mb_emit_ldloc (mb, conv_arg);
6997 mono_mb_emit_ldarg (mb, argnum);
7000 case MARSHAL_ACTION_CONV_RESULT:
7001 /* maybe we need to make sure that it fits within 8 bits */
7002 mono_mb_emit_stloc (mb, 3);
7005 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7006 MonoClass* conv_arg_class = mono_defaults.int32_class;
7007 guint8 ldop = CEE_LDIND_I4;
7008 int label_null, label_false;
7010 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7011 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7014 *conv_arg_type = &conv_arg_class->this_arg;
7016 *conv_arg_type = &conv_arg_class->byval_arg;
7019 mono_mb_emit_ldarg (mb, argnum);
7023 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7024 mono_mb_emit_ldarg (mb, argnum);
7025 mono_mb_emit_byte (mb, ldop);
7029 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7030 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7031 mono_mb_emit_stloc (mb, conv_arg);
7032 mono_mb_patch_branch (mb, label_false);
7035 mono_mb_patch_branch (mb, label_null);
7039 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7040 guint8 stop = CEE_STIND_I4;
7041 guint8 ldc_op = CEE_LDC_I4_1;
7042 int label_null,label_false, label_end;;
7047 switch (spec->native) {
7048 case MONO_NATIVE_I1:
7049 case MONO_NATIVE_U1:
7050 stop = CEE_STIND_I1;
7052 case MONO_NATIVE_VARIANTBOOL:
7053 stop = CEE_STIND_I2;
7054 ldc_op = CEE_LDC_I4_M1;
7062 mono_mb_emit_ldarg (mb, argnum);
7063 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7065 mono_mb_emit_ldarg (mb, argnum);
7066 mono_mb_emit_ldloc (mb, conv_arg);
7068 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7069 mono_mb_emit_byte (mb, ldc_op);
7070 label_end = mono_mb_emit_branch (mb, CEE_BR);
7072 mono_mb_patch_branch (mb, label_false);
7073 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7074 mono_mb_patch_branch (mb, label_end);
7076 mono_mb_emit_byte (mb, stop);
7077 mono_mb_patch_branch (mb, label_null);
7082 g_assert_not_reached ();
7089 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7090 MonoMarshalSpec *spec, int conv_arg,
7091 MonoType **conv_arg_type, MarshalAction action)
7094 MonoMethodBuilder *mb = m->mb;
7097 case MARSHAL_ACTION_CONV_IN:
7098 /* MS seems to allow this in some cases, ie. bxc #158 */
7100 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7101 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7102 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7107 case MARSHAL_ACTION_PUSH:
7108 mono_mb_emit_ldarg (mb, argnum);
7111 case MARSHAL_ACTION_CONV_RESULT:
7112 /* no conversions necessary */
7113 mono_mb_emit_stloc (mb, 3);
7124 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7125 MonoMarshalSpec *spec, int conv_arg,
7126 MonoType **conv_arg_type, MarshalAction action)
7129 MonoMethodBuilder *mb = m->mb;
7132 case MARSHAL_ACTION_PUSH:
7133 /* fixme: dont know how to marshal that. We cant simply
7134 * convert it to a one byte UTF8 character, because an
7135 * unicode character may need more that one byte in UTF8 */
7136 mono_mb_emit_ldarg (mb, argnum);
7139 case MARSHAL_ACTION_CONV_RESULT:
7140 /* fixme: we need conversions here */
7141 mono_mb_emit_stloc (mb, 3);
7152 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7153 MonoMarshalSpec *spec, int conv_arg,
7154 MonoType **conv_arg_type, MarshalAction action)
7157 MonoMethodBuilder *mb = m->mb;
7160 case MARSHAL_ACTION_PUSH:
7161 mono_mb_emit_ldarg (mb, argnum);
7164 case MARSHAL_ACTION_CONV_RESULT:
7165 /* no conversions necessary */
7166 mono_mb_emit_stloc (mb, 3);
7177 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7178 MonoMarshalSpec *spec, int conv_arg,
7179 MonoType **conv_arg_type, MarshalAction action)
7181 /* Ensure that we have marshalling info for this param */
7182 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7184 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7185 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7187 if (spec && spec->native == MONO_NATIVE_ASANY)
7188 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7191 case MONO_TYPE_VALUETYPE:
7192 if (t->data.klass == mono_defaults.handleref_class)
7193 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7195 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7196 case MONO_TYPE_STRING:
7197 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 case MONO_TYPE_CLASS:
7199 case MONO_TYPE_OBJECT:
7200 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7201 if (spec && spec->native == MONO_NATIVE_STRUCT)
7202 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7205 #if !defined(DISABLE_COM)
7206 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7207 spec->native == MONO_NATIVE_IDISPATCH ||
7208 spec->native == MONO_NATIVE_INTERFACE))
7209 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7210 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7211 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7212 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7213 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7216 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7217 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7218 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7220 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7221 case MONO_TYPE_ARRAY:
7222 case MONO_TYPE_SZARRAY:
7223 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7224 case MONO_TYPE_BOOLEAN:
7225 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7227 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7228 case MONO_TYPE_CHAR:
7229 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7242 case MONO_TYPE_FNPTR:
7243 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7244 case MONO_TYPE_GENERICINST:
7245 if (mono_type_generic_inst_is_valuetype (t))
7246 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7248 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7256 * mono_marshal_emit_native_wrapper:
7257 * @image: the image to use for looking up custom marshallers
7258 * @sig: The signature of the native function
7259 * @piinfo: Marshalling information
7260 * @mspecs: Marshalling information
7261 * @aot: whenever the created method will be compiled by the AOT compiler
7262 * @method: if non-NULL, the pinvoke method to call
7263 * @check_exceptions: Whenever to check for pending exceptions after the native call
7264 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7266 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7269 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)
7271 EmitMarshalContext m;
7272 MonoMethodSignature *csig;
7274 int i, argnum, *tmp_locals;
7275 int type, param_shift = 0;
7276 static MonoMethodSignature *get_last_error_sig = NULL;
7277 int coop_gc_stack_dummy, coop_gc_var;
7279 memset (&m, 0, sizeof (m));
7284 /* we copy the signature, so that we can set pinvoke to 0 */
7286 /* The function address is passed as the first argument */
7287 g_assert (!sig->hasthis);
7290 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7298 /* we allocate local for use with emit_struct_conv() */
7299 /* allocate local 0 (pointer) src_ptr */
7300 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7301 /* allocate local 1 (pointer) dst_ptr */
7302 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7303 /* allocate local 2 (boolean) delete_old */
7304 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7306 /* delete_old = FALSE */
7307 mono_mb_emit_icon (mb, 0);
7308 mono_mb_emit_stloc (mb, 2);
7310 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7311 /* allocate local 3 to store the return value */
7312 mono_mb_add_local (mb, sig->ret);
7315 if (mono_threads_is_coop_enabled ()) {
7316 /* local 4, dummy local used to get a stack address for suspend funcs */
7317 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7318 /* local 5, the local to be used when calling the suspend funcs */
7319 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7323 * cookie = mono_threads_prepare_blocking_unbalanced (ref dummy);
7325 * ret = method (...);
7327 * mono_threads_finish_blocking_unbalanced (cookie, ref dummy);
7334 if (MONO_TYPE_ISSTRUCT (sig->ret))
7335 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7337 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7338 /* Return type custom marshaling */
7340 * Since we can't determine the return type of the unmanaged function,
7341 * we assume it returns a pointer, and pass that pointer to
7342 * MarshalNativeToManaged.
7344 csig->ret = &mono_defaults.int_class->byval_arg;
7347 /* we first do all conversions */
7348 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7349 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7351 for (i = 0; i < sig->param_count; i ++) {
7352 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7355 // In coop mode need to register blocking state during native call
7356 if (mono_threads_is_coop_enabled ()) {
7357 // Perform an extra, early lookup of the function address, so any exceptions
7358 // potentially resulting from the lookup occur before entering blocking mode.
7359 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7360 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7361 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7362 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7365 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7366 mono_mb_emit_icall (mb, mono_threads_prepare_blocking_unbalanced);
7367 mono_mb_emit_stloc (mb, coop_gc_var);
7370 /* push all arguments */
7373 mono_mb_emit_byte (mb, CEE_LDARG_0);
7375 for (i = 0; i < sig->param_count; i++) {
7376 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7379 /* call the native method */
7381 mono_mb_emit_byte (mb, CEE_LDARG_0);
7382 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7383 mono_mb_emit_byte (mb, CEE_LDIND_I);
7384 mono_mb_emit_calli (mb, csig);
7385 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7387 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7389 g_assert_not_reached ();
7393 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7394 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7395 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7396 mono_mb_emit_calli (mb, csig);
7398 mono_mb_emit_native_call (mb, csig, func);
7402 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7403 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7404 mono_class_init (klass);
7405 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7406 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7407 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7408 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7409 mono_mb_emit_stloc (mb, m.vtaddr_var);
7413 /* Unblock before converting the result, since that can involve calls into the runtime */
7414 if (mono_threads_is_coop_enabled ()) {
7415 mono_mb_emit_ldloc (mb, coop_gc_var);
7416 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7417 mono_mb_emit_icall (mb, mono_threads_finish_blocking_unbalanced);
7420 /* Set LastError if needed */
7421 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7422 if (!get_last_error_sig) {
7423 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7424 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7425 get_last_error_sig->pinvoke = 1;
7430 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7431 * clobber its value.
7433 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7434 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7436 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7440 /* convert the result */
7441 if (!sig->ret->byref) {
7442 MonoMarshalSpec *spec = mspecs [0];
7443 type = sig->ret->type;
7445 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7446 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7450 case MONO_TYPE_VOID:
7452 case MONO_TYPE_VALUETYPE:
7453 klass = sig->ret->data.klass;
7454 if (klass->enumtype) {
7455 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7458 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7472 case MONO_TYPE_FNPTR:
7473 case MONO_TYPE_STRING:
7474 case MONO_TYPE_CLASS:
7475 case MONO_TYPE_OBJECT:
7476 case MONO_TYPE_BOOLEAN:
7477 case MONO_TYPE_ARRAY:
7478 case MONO_TYPE_SZARRAY:
7479 case MONO_TYPE_CHAR:
7481 case MONO_TYPE_GENERICINST:
7482 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7484 case MONO_TYPE_TYPEDBYREF:
7486 g_warning ("return type 0x%02x unknown", sig->ret->type);
7487 g_assert_not_reached ();
7491 mono_mb_emit_stloc (mb, 3);
7495 * Need to call this after converting the result since MONO_VTADDR needs
7496 * to be adjacent to the call instruction.
7498 if (check_exceptions)
7499 emit_thread_interrupt_checkpoint (mb);
7501 /* we need to convert byref arguments back and free string arrays */
7502 for (i = 0; i < sig->param_count; i++) {
7503 MonoType *t = sig->params [i];
7504 MonoMarshalSpec *spec = mspecs [i + 1];
7506 argnum = i + param_shift;
7508 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7509 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7514 case MONO_TYPE_STRING:
7515 case MONO_TYPE_VALUETYPE:
7516 case MONO_TYPE_CLASS:
7517 case MONO_TYPE_OBJECT:
7518 case MONO_TYPE_SZARRAY:
7519 case MONO_TYPE_BOOLEAN:
7520 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7527 if (!MONO_TYPE_IS_VOID(sig->ret))
7528 mono_mb_emit_ldloc (mb, 3);
7530 mono_mb_emit_byte (mb, CEE_RET);
7532 #endif /* DISABLE_JIT */
7535 * mono_marshal_get_native_wrapper:
7536 * @method: The MonoMethod to wrap.
7537 * @check_exceptions: Whenever to check for pending exceptions
7539 * generates IL code for the pinvoke wrapper (the generated method
7540 * calls the unmanaged code in piinfo->addr)
7541 * The wrapper info for the wrapper is a WrapperInfo structure.
7544 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7546 MonoMethodSignature *sig, *csig;
7547 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7548 MonoMethodBuilder *mb;
7549 MonoMarshalSpec **mspecs;
7552 gboolean pinvoke = FALSE;
7555 const char *exc_class = "MissingMethodException";
7556 const char *exc_arg = NULL;
7559 g_assert (method != NULL);
7560 g_assert (mono_method_signature (method)->pinvoke);
7562 GHashTable **cache_ptr;
7565 if (check_exceptions)
7566 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7568 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7570 if (check_exceptions)
7571 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7573 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7576 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7578 if ((res = mono_marshal_find_in_cache (cache, method)))
7581 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7582 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7586 return mono_cominterop_get_native_wrapper (method);
7588 g_assert_not_reached ();
7592 sig = mono_method_signature (method);
7594 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7595 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7598 if (!piinfo->addr) {
7600 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7601 exc_arg = "Method contains unsupported native code";
7603 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7605 piinfo->addr = mono_lookup_internal_call (method);
7609 /* hack - redirect certain string constructors to CreateString */
7610 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7611 g_assert (!pinvoke);
7612 g_assert (method->string_ctor);
7613 g_assert (sig->hasthis);
7615 /* CreateString returns a value */
7616 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7617 csig->ret = &mono_defaults.string_class->byval_arg;
7621 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7622 if (!strcmp ("CreateString", res->name) &&
7623 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7626 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7627 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7629 /* create a wrapper to preserve .ctor in stack trace */
7630 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7633 mono_mb_emit_byte (mb, CEE_LDARG_0);
7634 for (i = 1; i <= csig->param_count; i++)
7635 mono_mb_emit_ldarg (mb, i);
7636 mono_mb_emit_managed_call (mb, res, NULL);
7637 mono_mb_emit_byte (mb, CEE_RET);
7640 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7641 info->d.string_ctor.method = method;
7643 /* use native_wrapper_cache because internal calls are looked up there */
7644 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7645 csig->param_count + 1, info, NULL);
7652 /* exception will be thrown */
7653 piinfo->addr = NULL;
7654 g_warning ("cannot find CreateString for .ctor");
7657 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7659 mb->method->save_lmf = 1;
7662 * In AOT mode and embedding scenarios, it is possible that the icall is not
7663 * registered in the runtime doing the AOT compilation.
7665 if (!piinfo->addr && !aot) {
7667 mono_mb_emit_exception (mb, exc_class, exc_arg);
7669 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7670 info->d.managed_to_native.method = method;
7672 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7674 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7675 csig->param_count + 16, info, NULL);
7681 /* internal calls: we simply push all arguments and call the method (no conversions) */
7682 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7684 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7686 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7688 /* hack - string constructors returns a value */
7689 if (method->string_ctor)
7690 csig->ret = &mono_defaults.string_class->byval_arg;
7697 * Add a null check since public icalls can be called with 'call' which
7698 * does no such check.
7700 mono_mb_emit_byte (mb, CEE_LDARG_0);
7701 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7702 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7703 mono_mb_patch_branch (mb, pos);
7705 mono_mb_emit_byte (mb, CEE_LDARG_0);
7708 for (i = 0; i < sig->param_count; i++)
7709 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7713 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7714 mono_mb_emit_calli (mb, csig);
7716 g_assert (piinfo->addr);
7717 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7719 if (check_exceptions)
7720 emit_thread_interrupt_checkpoint (mb);
7721 mono_mb_emit_byte (mb, CEE_RET);
7723 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7724 info->d.managed_to_native.method = method;
7726 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7728 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7737 g_assert (piinfo->addr);
7740 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7741 mono_method_get_marshal_info (method, mspecs);
7743 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7745 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7746 info->d.managed_to_native.method = method;
7748 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7750 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7755 for (i = sig->param_count; i >= 0; i--)
7757 mono_metadata_free_marshal_spec (mspecs [i]);
7761 /* mono_method_print_code (res); */
7767 * mono_marshal_get_native_func_wrapper:
7768 * @image: The image to use for memory allocation and for looking up custom marshallers.
7769 * @sig: The signature of the function
7770 * @func: The native function to wrap
7772 * Returns a wrapper method around native functions, similar to the pinvoke
7776 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7777 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7779 MonoMethodSignature *csig;
7781 SignaturePointerPair key, *new_key;
7782 MonoMethodBuilder *mb;
7791 // Generic types are not safe to place in MonoImage caches.
7792 g_assert (!sig->is_inflated);
7794 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7795 if ((res = mono_marshal_find_in_cache (cache, &key)))
7798 name = g_strdup_printf ("wrapper_native_%p", func);
7799 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7800 mb->method->save_lmf = 1;
7803 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7806 csig = mono_metadata_signature_dup_full (image, sig);
7809 new_key = g_new (SignaturePointerPair,1);
7810 new_key->sig = csig;
7811 new_key->pointer = func;
7813 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7819 mono_marshal_set_wrapper_info (res, NULL);
7825 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7829 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7831 MonoMethodSignature *sig, *csig;
7832 MonoMethodBuilder *mb;
7837 MonoMethodPInvoke mpiinfo;
7838 MonoMethodPInvoke *piinfo = &mpiinfo;
7839 MonoMarshalSpec **mspecs;
7840 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7841 MonoImage *image = invoke->klass->image;
7844 // FIXME: include UnmanagedFunctionPointerAttribute info
7847 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7849 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7851 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7854 memset (&mpiinfo, 0, sizeof (mpiinfo));
7855 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7857 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7858 mono_method_get_marshal_info (invoke, mspecs);
7859 /* Freed below so don't alloc from mempool */
7860 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7863 name = g_strdup_printf ("wrapper_aot_native");
7864 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7865 mb->method->save_lmf = 1;
7868 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7871 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7872 info->d.managed_to_native.method = invoke;
7874 g_assert (!sig->hasthis);
7875 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7877 res = mono_mb_create_and_cache_full (cache, invoke,
7878 mb, csig, csig->param_count + 16,
7882 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7884 mono_metadata_free_marshal_spec (mspecs [i]);
7892 * mono_marshal_emit_managed_wrapper:
7894 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7895 * the delegate which wraps the managed method to be called. For closed delegates,
7896 * it could have fewer parameters than the method it wraps.
7897 * THIS_LOC is the memory location where the target of the delegate is stored.
7900 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7903 MonoMethodSignature *sig, *csig;
7909 /* we first do all conversions */
7910 for (i = 0; i < sig->param_count; i ++) {
7911 MonoType *t = sig->params [i];
7914 case MONO_TYPE_OBJECT:
7915 case MONO_TYPE_CLASS:
7916 case MONO_TYPE_VALUETYPE:
7917 case MONO_TYPE_ARRAY:
7918 case MONO_TYPE_SZARRAY:
7919 case MONO_TYPE_STRING:
7920 case MONO_TYPE_BOOLEAN:
7921 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7925 if (!sig->ret->byref) {
7926 switch (sig->ret->type) {
7927 case MONO_TYPE_STRING:
7928 csig->ret = &mono_defaults.int_class->byval_arg;
7935 MonoMethodSignature *sig, *csig;
7936 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7937 int i, *tmp_locals, ex_local, e_local;
7938 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7939 gboolean closed = FALSE;
7944 /* allocate local 0 (pointer) src_ptr */
7945 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7946 /* allocate local 1 (pointer) dst_ptr */
7947 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7948 /* allocate local 2 (boolean) delete_old */
7949 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7951 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7952 /* Closed delegate */
7953 g_assert (sig->param_count == invoke_sig->param_count + 1);
7955 /* Use a new signature without the first argument */
7956 sig = mono_metadata_signature_dup (sig);
7957 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7958 sig->param_count --;
7961 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7962 /* allocate local 3 to store the return value */
7963 mono_mb_add_local (mb, sig->ret);
7966 if (MONO_TYPE_ISSTRUCT (sig->ret))
7967 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7969 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
7970 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
7975 * mono_jit_attach ();
7979 * ret = method (...);
7980 * } catch (Exception e) {
7981 * ex = mono_gchandle_new (e, false);
7983 * mono_jit_detach ();
7986 * mono_marshal_ftnptr_eh_callback (ex);
7992 clauses = g_new0 (MonoExceptionClause, 2);
7994 clause_catch = &clauses [0];
7995 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
7996 clause_catch->data.catch_class = mono_defaults.exception_class;
7998 clause_finally = &clauses [1];
7999 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8001 mono_mb_emit_icon (mb, 0);
8002 mono_mb_emit_stloc (mb, 2);
8004 mono_mb_emit_icon (mb, -1);
8005 mono_mb_emit_byte (mb, CEE_CONV_U4);
8006 mono_mb_emit_stloc (mb, ex_local);
8009 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8012 * Might need to attach the thread to the JIT or change the
8013 * domain for the callback.
8015 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8017 * mono_jit_attach ();
8019 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8020 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8022 /* <interrupt check> */
8023 emit_thread_interrupt_checkpoint (mb);
8025 /* we first do all conversions */
8026 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8027 for (i = 0; i < sig->param_count; i ++) {
8028 MonoType *t = sig->params [i];
8031 case MONO_TYPE_OBJECT:
8032 case MONO_TYPE_CLASS:
8033 case MONO_TYPE_VALUETYPE:
8034 case MONO_TYPE_ARRAY:
8035 case MONO_TYPE_SZARRAY:
8036 case MONO_TYPE_STRING:
8037 case MONO_TYPE_BOOLEAN:
8038 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8048 if (target_handle) {
8049 mono_mb_emit_icon (mb, (gint32)target_handle);
8050 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8053 g_assert_not_reached ();
8055 } else if (closed) {
8056 mono_mb_emit_icon (mb, (gint32)target_handle);
8057 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8060 for (i = 0; i < sig->param_count; i++) {
8061 MonoType *t = sig->params [i];
8063 if (tmp_locals [i]) {
8065 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8067 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8070 mono_mb_emit_ldarg (mb, i);
8073 /* ret = method (...) */
8074 mono_mb_emit_managed_call (mb, method, NULL);
8076 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8077 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8078 mono_class_init (klass);
8079 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8080 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8081 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8082 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8083 mono_mb_emit_stloc (mb, m->vtaddr_var);
8087 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8088 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8089 } else if (!sig->ret->byref) {
8090 switch (sig->ret->type) {
8091 case MONO_TYPE_VOID:
8093 case MONO_TYPE_BOOLEAN:
8096 case MONO_TYPE_CHAR:
8108 case MONO_TYPE_OBJECT:
8109 mono_mb_emit_stloc (mb, 3);
8111 case MONO_TYPE_STRING:
8112 csig->ret = &mono_defaults.int_class->byval_arg;
8113 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8115 case MONO_TYPE_VALUETYPE:
8116 case MONO_TYPE_CLASS:
8117 case MONO_TYPE_SZARRAY:
8118 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8121 g_warning ("return type 0x%02x unknown", sig->ret->type);
8122 g_assert_not_reached ();
8125 mono_mb_emit_stloc (mb, 3);
8128 /* Convert byref arguments back */
8129 for (i = 0; i < sig->param_count; i ++) {
8130 MonoType *t = sig->params [i];
8131 MonoMarshalSpec *spec = mspecs [i + 1];
8133 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8134 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8136 else if (t->byref) {
8138 case MONO_TYPE_CLASS:
8139 case MONO_TYPE_VALUETYPE:
8140 case MONO_TYPE_OBJECT:
8141 case MONO_TYPE_STRING:
8142 case MONO_TYPE_BOOLEAN:
8143 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8149 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8150 /* The [Out] information is encoded in the delegate signature */
8152 case MONO_TYPE_SZARRAY:
8153 case MONO_TYPE_CLASS:
8154 case MONO_TYPE_VALUETYPE:
8155 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8158 g_assert_not_reached ();
8163 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8167 /* catch (Exception e) { */
8168 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8169 clause_catch->handler_offset = mono_mb_get_label (mb);
8171 mono_mb_emit_stloc (mb, e_local);
8173 /* ex = mono_gchandle_new (e, false); */
8174 mono_mb_emit_ldloc (mb, e_local);
8175 mono_mb_emit_icon (mb, 0);
8176 mono_mb_emit_icall (mb, mono_gchandle_new);
8177 mono_mb_emit_stloc (mb, ex_local);
8179 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8182 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8185 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8186 clause_finally->handler_offset = mono_mb_get_label (mb);
8189 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8191 * mono_jit_detach ();
8193 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8194 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8197 mono_mb_emit_ldloc (mb, ex_local);
8198 mono_mb_emit_icon (mb, -1);
8199 mono_mb_emit_byte (mb, CEE_CONV_U4);
8200 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8202 /* mono_marshal_ftnptr_eh_callback (ex) */
8203 mono_mb_emit_ldloc (mb, ex_local);
8204 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8207 mono_mb_patch_branch (mb, ex_m1_pos);
8209 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8211 /* } [endfinally] */
8212 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8214 mono_mb_patch_branch (mb, leave_try_pos);
8215 mono_mb_patch_branch (mb, leave_catch_pos);
8218 if (m->retobj_var) {
8219 mono_mb_emit_ldloc (mb, m->retobj_var);
8220 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8221 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8224 if (!MONO_TYPE_IS_VOID(sig->ret))
8225 mono_mb_emit_ldloc (mb, 3);
8226 mono_mb_emit_byte (mb, CEE_RET);
8229 mono_mb_set_clauses (mb, 2, clauses);
8237 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8239 MonoMethodSignature *sig;
8244 * Under windows, delegates passed to native code must use the STDCALL
8245 * calling convention.
8247 csig->call_convention = MONO_CALL_STDCALL;
8250 sig = mono_method_signature (method);
8252 /* Change default calling convention if needed */
8253 /* Why is this a modopt ? */
8254 if (sig->ret && sig->ret->num_mods) {
8255 for (i = 0; i < sig->ret->num_mods; ++i) {
8257 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8258 g_assert (mono_error_ok (&error));
8259 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8260 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8261 csig->call_convention = MONO_CALL_C;
8262 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8263 csig->call_convention = MONO_CALL_STDCALL;
8264 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8265 csig->call_convention = MONO_CALL_FASTCALL;
8266 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8267 csig->call_convention = MONO_CALL_THISCALL;
8274 * generates IL code to call managed methods from unmanaged code
8275 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8278 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8281 MonoMethodSignature *sig, *csig, *invoke_sig;
8282 MonoMethodBuilder *mb;
8283 MonoMethod *res, *invoke;
8284 MonoMarshalSpec **mspecs;
8285 MonoMethodPInvoke piinfo;
8288 EmitMarshalContext m;
8290 g_assert (method != NULL);
8291 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8294 * FIXME: Should cache the method+delegate type pair, since the same method
8295 * could be called with different delegates, thus different marshalling
8298 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8300 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8303 invoke = mono_get_delegate_invoke (delegate_klass);
8304 invoke_sig = mono_method_signature (invoke);
8306 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8307 mono_method_get_marshal_info (invoke, mspecs);
8309 sig = mono_method_signature (method);
8311 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8313 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8314 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8316 /* we copy the signature, so that we can modify it */
8318 /* Need to free this later */
8319 csig = mono_metadata_signature_dup (invoke_sig);
8321 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8325 memset (&m, 0, sizeof (m));
8331 m.image = method->klass->image;
8333 mono_marshal_set_callconv_from_modopt (invoke, csig);
8335 /* The attribute is only available in Net 2.0 */
8336 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8337 MonoCustomAttrInfo *cinfo;
8338 MonoCustomAttrEntry *attr;
8341 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8342 * contents of the attribute without constructing it, as that might not be
8343 * possible when running in cross-compiling mode.
8345 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8346 mono_error_assert_ok (&error);
8349 for (i = 0; i < cinfo->num_attrs; ++i) {
8350 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8351 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8352 attr = &cinfo->attrs [i];
8358 MonoArray *typed_args, *named_args;
8359 CattrNamedArg *arginfo;
8363 MonoBoolean set_last_error = 0;
8366 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8367 g_assert (mono_error_ok (&error));
8368 g_assert (mono_array_length (typed_args) == 1);
8371 o = mono_array_get (typed_args, MonoObject*, 0);
8372 call_conv = *(gint32*)mono_object_unbox (o);
8375 for (i = 0; i < mono_array_length (named_args); ++i) {
8376 CattrNamedArg *narg = &arginfo [i];
8378 o = mono_array_get (named_args, MonoObject*, i);
8380 g_assert (narg->field);
8381 if (!strcmp (narg->field->name, "CharSet")) {
8382 charset = *(gint32*)mono_object_unbox (o);
8383 } else if (!strcmp (narg->field->name, "SetLastError")) {
8384 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8385 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8386 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8387 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8388 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8390 g_assert_not_reached ();
8396 memset (&piinfo, 0, sizeof (piinfo));
8398 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8400 csig->call_convention = call_conv - 1;
8403 if (cinfo && !cinfo->cached)
8404 mono_custom_attrs_free (cinfo);
8407 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8409 if (!target_handle) {
8412 // FIXME: Associate it with the method+delegate_klass pair
8413 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8414 info->d.native_to_managed.method = method;
8415 info->d.native_to_managed.klass = delegate_klass;
8417 res = mono_mb_create_and_cache_full (cache, method,
8418 mb, csig, sig->param_count + 16,
8424 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8428 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8430 mono_metadata_free_marshal_spec (mspecs [i]);
8433 /* mono_method_print_code (res); */
8439 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8443 MonoMethodSignature *sig;
8444 MonoMethodBuilder *mb;
8449 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8451 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8454 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8455 MonoMethodSignature *csig;
8456 MonoMarshalSpec **mspecs;
8457 EmitMarshalContext m;
8459 sig = mono_method_signature (method);
8460 g_assert (!sig->hasthis);
8462 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8463 mono_method_get_marshal_info (method, mspecs);
8465 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8466 csig = mono_metadata_signature_dup_full (image, sig);
8470 memset (&m, 0, sizeof (m));
8478 mono_marshal_set_callconv_from_modopt (method, csig);
8480 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8482 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8487 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8490 for (i = sig->param_count; i >= 0; i--)
8492 mono_metadata_free_marshal_spec (mspecs [i]);
8495 return mono_compile_method (method);
8498 sig = mono_method_signature (method);
8499 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8501 param_count = sig->param_count + sig->hasthis;
8503 for (i = 0; i < param_count; i++)
8504 mono_mb_emit_ldarg (mb, i);
8506 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8507 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8509 mono_mb_emit_op (mb, CEE_CALL, method);
8510 mono_mb_emit_byte (mb, CEE_RET);
8515 method = mono_mb_create (mb, sig, param_count, NULL);
8518 return mono_compile_method (method);
8524 * The code directly following this is the cache hit, value positive branch
8526 * This function takes a new method builder with 0 locals and adds two locals
8527 * to create multiple out-branches and the fall through state of having the object
8528 * on the stack after a cache miss
8531 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8532 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8533 MonoMethodBuilder *mb)
8537 /* allocate local 0 (pointer) obj_vtable */
8538 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8539 /* allocate local 1 (pointer) cached_vtable */
8540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8543 mono_mb_emit_ldarg (mb, obj_arg_position);
8544 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8546 /*obj_vtable = obj->vtable;*/
8547 mono_mb_emit_ldarg (mb, obj_arg_position);
8548 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8549 mono_mb_emit_byte (mb, CEE_LDIND_I);
8550 mono_mb_emit_stloc (mb, 0);
8552 /* cached_vtable = *cache*/
8553 mono_mb_emit_ldarg (mb, cache_arg_position);
8554 mono_mb_emit_byte (mb, CEE_LDIND_I);
8555 mono_mb_emit_stloc (mb, 1);
8557 mono_mb_emit_ldloc (mb, 1);
8558 mono_mb_emit_byte (mb, CEE_LDC_I4);
8559 mono_mb_emit_i4 (mb, ~0x1);
8560 mono_mb_emit_byte (mb, CEE_CONV_I);
8561 mono_mb_emit_byte (mb, CEE_AND);
8562 mono_mb_emit_ldloc (mb, 0);
8563 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8564 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8566 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8567 mono_mb_emit_ldloc (mb, 1);
8568 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8569 mono_mb_emit_byte (mb, CEE_CONV_U);
8570 mono_mb_emit_byte (mb, CEE_AND);
8571 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8572 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8575 mono_mb_patch_branch (mb, cache_miss_pos);
8578 mono_mb_emit_ldarg (mb, obj_arg_position);
8579 mono_mb_emit_ldarg (mb, class_arg_position);
8580 mono_mb_emit_ldarg (mb, cache_arg_position);
8581 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8584 #endif /* DISABLE_JIT */
8587 * This does the equivalent of mono_object_castclass_with_cache.
8588 * The wrapper info for the wrapper is a WrapperInfo structure.
8591 mono_marshal_get_castclass_with_cache (void)
8593 static MonoMethod *cached;
8595 MonoMethodBuilder *mb;
8596 MonoMethodSignature *sig;
8597 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8600 const int obj_arg_position = 0;
8601 const int class_arg_position = 1;
8602 const int cache_arg_position = 2;
8607 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8608 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8609 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8610 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8611 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8612 sig->ret = &mono_defaults.object_class->byval_arg;
8616 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8617 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8618 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8621 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8622 mono_mb_emit_ldarg (mb, obj_arg_position);
8623 mono_mb_emit_byte (mb, CEE_RET);
8626 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8627 mono_mb_patch_branch (mb, invalid_cast_pos);
8628 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8631 mono_mb_patch_branch (mb, return_null_pos);
8632 mono_mb_emit_byte (mb, CEE_LDNULL);
8633 mono_mb_emit_byte (mb, CEE_RET);
8634 #endif /* DISABLE_JIT */
8636 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8637 res = mono_mb_create (mb, sig, 8, info);
8640 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8641 mono_free_method (res);
8642 mono_metadata_free_method_signature (sig);
8650 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8653 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8654 mono_error_raise_exception (&error); /* FIXME don't raise here */
8656 #ifndef DISABLE_REMOTING
8657 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8661 uintptr_t cache_update = (uintptr_t)obj->vtable;
8663 cache_update = cache_update | 0x1;
8665 *cache = cache_update;
8671 * This does the equivalent of mono_object_isinst_with_cache.
8672 * The wrapper info for the wrapper is a WrapperInfo structure.
8675 mono_marshal_get_isinst_with_cache (void)
8677 static MonoMethod *cached;
8679 MonoMethodBuilder *mb;
8680 MonoMethodSignature *sig;
8681 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8684 const int obj_arg_position = 0;
8685 const int class_arg_position = 1;
8686 const int cache_arg_position = 2;
8691 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8692 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8694 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8696 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8698 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8699 sig->ret = &mono_defaults.object_class->byval_arg;
8703 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8704 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8705 // Return the object gotten via the slow path.
8706 mono_mb_emit_byte (mb, CEE_RET);
8709 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8710 mono_mb_patch_branch (mb, return_null_pos);
8711 mono_mb_emit_byte (mb, CEE_LDNULL);
8712 mono_mb_emit_byte (mb, CEE_RET);
8715 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8716 mono_mb_emit_ldarg (mb, obj_arg_position);
8717 mono_mb_emit_byte (mb, CEE_RET);
8720 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8721 res = mono_mb_create (mb, sig, 8, info);
8724 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8725 mono_free_method (res);
8726 mono_metadata_free_method_signature (sig);
8734 * mono_marshal_get_isinst:
8735 * @klass: the type of the field
8737 * This method generates a function which can be used to check if an object is
8738 * an instance of the given type, icluding the case where the object is a proxy.
8739 * The generated function has the following signature:
8740 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8743 mono_marshal_get_isinst (MonoClass *klass)
8745 static MonoMethodSignature *isint_sig = NULL;
8749 int pos_was_ok, pos_end;
8750 #ifndef DISABLE_REMOTING
8751 int pos_end2, pos_failed;
8754 MonoMethodBuilder *mb;
8756 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8757 if ((res = mono_marshal_find_in_cache (cache, klass)))
8761 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8762 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8763 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8764 isint_sig->pinvoke = 0;
8767 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8768 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8771 mb->method->save_lmf = 1;
8774 /* check if the object is a proxy that needs special cast */
8775 mono_mb_emit_ldarg (mb, 0);
8776 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8777 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8779 /* The result of MONO_CISINST can be:
8780 0) the type check succeeded
8781 1) the type check did not succeed
8782 2) a CanCastTo call is needed */
8783 #ifndef DISABLE_REMOTING
8784 mono_mb_emit_byte (mb, CEE_DUP);
8785 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8787 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8788 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8790 /* get the real proxy from the transparent proxy*/
8792 mono_mb_emit_ldarg (mb, 0);
8793 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8794 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8798 mono_mb_patch_branch (mb, pos_failed);
8799 mono_mb_emit_byte (mb, CEE_LDNULL);
8800 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8804 mono_mb_patch_branch (mb, pos_was_ok);
8805 mono_mb_emit_byte (mb, CEE_POP);
8806 mono_mb_emit_ldarg (mb, 0);
8810 mono_mb_patch_branch (mb, pos_end);
8811 mono_mb_patch_branch (mb, pos_end2);
8812 mono_mb_emit_byte (mb, CEE_RET);
8814 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8818 mono_mb_emit_byte (mb, CEE_LDNULL);
8819 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8823 mono_mb_patch_branch (mb, pos_was_ok);
8824 mono_mb_emit_ldarg (mb, 0);
8828 mono_mb_patch_branch (mb, pos_end);
8829 mono_mb_emit_byte (mb, CEE_RET);
8830 #endif /* DISABLE_REMOTING */
8831 #endif /* DISABLE_JIT */
8833 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8834 info->d.proxy.klass = klass;
8835 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8842 * mono_marshal_get_castclass:
8843 * @klass: the type of the field
8845 * This method generates a function which can be used to cast an object to
8846 * an instance of the given type, icluding the case where the object is a proxy.
8847 * The generated function has the following signature:
8848 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8849 * The wrapper info for the wrapper is a WrapperInfo structure.
8852 mono_marshal_get_castclass (MonoClass *klass)
8854 static MonoMethodSignature *castclass_sig = NULL;
8857 #ifndef DISABLE_REMOTING
8858 int pos_was_ok, pos_was_ok2;
8861 MonoMethodBuilder *mb;
8864 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8865 if ((res = mono_marshal_find_in_cache (cache, klass)))
8868 if (!castclass_sig) {
8869 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8870 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8871 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8872 castclass_sig->pinvoke = 0;
8875 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8876 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8879 mb->method->save_lmf = 1;
8882 /* check if the object is a proxy that needs special cast */
8883 mono_mb_emit_ldarg (mb, 0);
8884 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8885 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8887 /* The result of MONO_CCASTCLASS can be:
8888 0) the cast is valid
8889 1) cast of unknown proxy type
8890 or an exception if the cast is is invalid
8892 #ifndef DISABLE_REMOTING
8893 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8895 /* get the real proxy from the transparent proxy*/
8897 mono_mb_emit_ldarg (mb, 0);
8898 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8899 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8902 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8905 mono_mb_patch_branch (mb, pos_was_ok);
8906 mono_mb_patch_branch (mb, pos_was_ok2);
8908 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8909 mono_mb_emit_byte (mb, CEE_POP);
8910 #endif /* DISABLE_REMOTING */
8912 mono_mb_emit_ldarg (mb, 0);
8915 mono_mb_emit_byte (mb, CEE_RET);
8916 #endif /* DISABLE_JIT */
8918 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8920 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8928 * mono_marshal_get_struct_to_ptr:
8931 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8932 * The wrapper info for the wrapper is a WrapperInfo structure.
8935 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8937 MonoMethodBuilder *mb;
8938 static MonoMethod *stoptr = NULL;
8942 g_assert (klass != NULL);
8944 mono_marshal_load_type_info (klass);
8946 if (klass->marshal_info->str_to_ptr)
8947 return klass->marshal_info->str_to_ptr;
8950 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8953 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8956 if (klass->blittable) {
8957 mono_mb_emit_byte (mb, CEE_LDARG_1);
8958 mono_mb_emit_byte (mb, CEE_LDARG_0);
8959 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8960 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8961 mono_mb_emit_byte (mb, CEE_PREFIX1);
8962 mono_mb_emit_byte (mb, CEE_CPBLK);
8965 /* allocate local 0 (pointer) src_ptr */
8966 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8967 /* allocate local 1 (pointer) dst_ptr */
8968 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8969 /* allocate local 2 (boolean) delete_old */
8970 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8971 mono_mb_emit_byte (mb, CEE_LDARG_2);
8972 mono_mb_emit_stloc (mb, 2);
8974 /* initialize src_ptr to point to the start of object data */
8975 mono_mb_emit_byte (mb, CEE_LDARG_0);
8976 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8977 mono_mb_emit_stloc (mb, 0);
8979 /* initialize dst_ptr */
8980 mono_mb_emit_byte (mb, CEE_LDARG_1);
8981 mono_mb_emit_stloc (mb, 1);
8983 emit_struct_conv (mb, klass, FALSE);
8986 mono_mb_emit_byte (mb, CEE_RET);
8988 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8989 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8992 mono_marshal_lock ();
8993 if (!klass->marshal_info->str_to_ptr)
8994 klass->marshal_info->str_to_ptr = res;
8996 res = klass->marshal_info->str_to_ptr;
8997 mono_marshal_unlock ();
9002 * mono_marshal_get_ptr_to_struct:
9005 * generates IL code for PtrToStructure (IntPtr src, object structure)
9006 * The wrapper info for the wrapper is a WrapperInfo structure.
9009 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9011 MonoMethodBuilder *mb;
9012 static MonoMethodSignature *ptostr = NULL;
9016 g_assert (klass != NULL);
9018 mono_marshal_load_type_info (klass);
9020 if (klass->marshal_info->ptr_to_str)
9021 return klass->marshal_info->ptr_to_str;
9024 MonoMethodSignature *sig;
9026 /* Create the signature corresponding to
9027 static void PtrToStructure (IntPtr ptr, object structure);
9028 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9029 sig = mono_create_icall_signature ("void ptr object");
9030 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9032 mono_memory_barrier ();
9036 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9039 if (klass->blittable) {
9040 mono_mb_emit_byte (mb, CEE_LDARG_1);
9041 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9042 mono_mb_emit_byte (mb, CEE_LDARG_0);
9043 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9044 mono_mb_emit_byte (mb, CEE_PREFIX1);
9045 mono_mb_emit_byte (mb, CEE_CPBLK);
9048 /* allocate local 0 (pointer) src_ptr */
9049 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9050 /* allocate local 1 (pointer) dst_ptr */
9051 mono_mb_add_local (mb, &klass->this_arg);
9053 /* initialize src_ptr to point to the start of object data */
9054 mono_mb_emit_byte (mb, CEE_LDARG_0);
9055 mono_mb_emit_stloc (mb, 0);
9057 /* initialize dst_ptr */
9058 mono_mb_emit_byte (mb, CEE_LDARG_1);
9059 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9060 mono_mb_emit_stloc (mb, 1);
9062 emit_struct_conv (mb, klass, TRUE);
9065 mono_mb_emit_byte (mb, CEE_RET);
9067 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9068 res = mono_mb_create (mb, ptostr, 0, info);
9071 mono_marshal_lock ();
9072 if (!klass->marshal_info->ptr_to_str)
9073 klass->marshal_info->ptr_to_str = res;
9075 res = klass->marshal_info->ptr_to_str;
9076 mono_marshal_unlock ();
9081 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9082 * This is used to avoid infinite recursion since it is hard to determine where to
9083 * replace a method with its synchronized wrapper, and where not.
9084 * The runtime should execute METHOD instead of the wrapper.
9085 * The wrapper info for the wrapper is a WrapperInfo structure.
9088 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9090 MonoMethodBuilder *mb;
9092 MonoMethodSignature *sig;
9094 MonoGenericContext *ctx = NULL;
9095 MonoGenericContainer *container = NULL;
9097 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9098 ctx = &((MonoMethodInflated*)method)->context;
9099 method = ((MonoMethodInflated*)method)->declaring;
9100 container = mono_method_get_generic_container (method);
9102 container = method->klass->generic_container;
9103 g_assert (container);
9106 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9108 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9109 mono_mb_emit_byte (mb, CEE_RET);
9111 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9113 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9114 info->d.synchronized_inner.method = method;
9115 res = mono_mb_create (mb, sig, 0, info);
9119 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9120 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9126 * generates IL code for the synchronized wrapper: the generated method
9127 * calls METHOD while locking 'this' or the parent type.
9130 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9132 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9133 MonoMethodSignature *sig;
9134 MonoExceptionClause *clause;
9135 MonoMethodBuilder *mb;
9139 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9140 MonoGenericContext *ctx = NULL;
9141 MonoMethod *orig_method = NULL;
9142 MonoGenericContainer *container = NULL;
9146 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9149 /* FIXME: Support generic methods too */
9150 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9151 orig_method = method;
9152 ctx = &((MonoMethodInflated*)method)->context;
9153 method = ((MonoMethodInflated*)method)->declaring;
9154 container = mono_method_get_generic_container (method);
9156 container = method->klass->generic_container;
9157 g_assert (container);
9164 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9165 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9169 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9170 if ((res = mono_marshal_find_in_cache (cache, method)))
9174 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9177 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9179 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9180 info->d.synchronized.method = method;
9183 mb->skip_visibility = 1;
9185 if (!MONO_TYPE_IS_VOID (sig->ret))
9186 ret_local = mono_mb_add_local (mb, sig->ret);
9189 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9190 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9192 /* This will throw the type load exception when the wrapper is compiled */
9193 mono_mb_emit_byte (mb, CEE_LDNULL);
9194 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9195 mono_mb_emit_byte (mb, CEE_POP);
9197 if (!MONO_TYPE_IS_VOID (sig->ret))
9198 mono_mb_emit_ldloc (mb, ret_local);
9199 mono_mb_emit_byte (mb, CEE_RET);
9202 res = mono_mb_create_and_cache_full (cache, method,
9203 mb, sig, sig->param_count + 16, info, NULL);
9211 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9212 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9214 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9215 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9218 mono_marshal_lock ();
9220 if (!enter_method) {
9221 MonoMethodDesc *desc;
9223 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9224 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9225 g_assert (enter_method);
9226 mono_method_desc_free (desc);
9228 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9229 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9230 g_assert (exit_method);
9231 mono_method_desc_free (desc);
9233 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9234 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9235 g_assert (gettypefromhandle_method);
9236 mono_method_desc_free (desc);
9239 mono_marshal_unlock ();
9242 /* Push this or the type object */
9243 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9244 /* We have special handling for this in the JIT */
9245 int index = mono_mb_add_data (mb, method->klass);
9246 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9247 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9248 mono_mb_emit_i4 (mb, index);
9250 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9253 mono_mb_emit_ldarg (mb, 0);
9254 mono_mb_emit_stloc (mb, this_local);
9256 /* Call Monitor::Enter() */
9257 mono_mb_emit_ldloc (mb, this_local);
9258 mono_mb_emit_ldloc_addr (mb, taken_local);
9259 mono_mb_emit_managed_call (mb, enter_method, NULL);
9261 clause->try_offset = mono_mb_get_label (mb);
9263 /* Call the method */
9265 mono_mb_emit_ldarg (mb, 0);
9266 for (i = 0; i < sig->param_count; i++)
9267 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9271 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9272 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9274 mono_mb_emit_managed_call (mb, method, NULL);
9277 if (!MONO_TYPE_IS_VOID (sig->ret))
9278 mono_mb_emit_stloc (mb, ret_local);
9280 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9282 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9283 clause->handler_offset = mono_mb_get_label (mb);
9285 /* Call Monitor::Exit() if needed */
9286 mono_mb_emit_ldloc (mb, taken_local);
9287 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9288 mono_mb_emit_ldloc (mb, this_local);
9289 mono_mb_emit_managed_call (mb, exit_method, NULL);
9290 mono_mb_patch_branch (mb, pos2);
9291 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9293 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9295 mono_mb_patch_branch (mb, pos);
9296 if (!MONO_TYPE_IS_VOID (sig->ret))
9297 mono_mb_emit_ldloc (mb, ret_local);
9298 mono_mb_emit_byte (mb, CEE_RET);
9300 mono_mb_set_clauses (mb, 1, clause);
9305 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9306 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9308 res = mono_mb_create_and_cache_full (cache, method,
9309 mb, sig, sig->param_count + 16, info, NULL);
9318 * the returned method calls 'method' unboxing the this argument
9321 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9323 MonoMethodSignature *sig = mono_method_signature (method);
9325 MonoMethodBuilder *mb;
9330 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9332 if ((res = mono_marshal_find_in_cache (cache, method)))
9335 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9337 g_assert (sig->hasthis);
9340 mono_mb_emit_ldarg (mb, 0);
9341 mono_mb_emit_icon (mb, sizeof (MonoObject));
9342 mono_mb_emit_byte (mb, CEE_ADD);
9343 for (i = 0; i < sig->param_count; ++i)
9344 mono_mb_emit_ldarg (mb, i + 1);
9345 mono_mb_emit_managed_call (mb, method, NULL);
9346 mono_mb_emit_byte (mb, CEE_RET);
9349 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9350 info->d.unbox.method = method;
9352 res = mono_mb_create_and_cache_full (cache, method,
9353 mb, sig, sig->param_count + 16, info, NULL);
9356 /* mono_method_print_code (res); */
9362 STELEMREF_OBJECT, /*no check at all*/
9363 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9364 STELEMREF_CLASS, /*only the klass->parents check*/
9365 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9366 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9367 STELEMREF_KIND_COUNT
9370 static const char *strelemref_wrapper_name[] = {
9371 "object", "sealed_class", "class", "interface", "complex"
9375 is_monomorphic_array (MonoClass *klass)
9377 MonoClass *element_class;
9378 if (klass->rank != 1)
9381 element_class = klass->element_class;
9382 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9386 get_virtual_stelemref_kind (MonoClass *element_class)
9388 if (element_class == mono_defaults.object_class)
9389 return STELEMREF_OBJECT;
9390 if (is_monomorphic_array (element_class))
9391 return STELEMREF_SEALED_CLASS;
9392 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9393 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9394 #ifdef COMPRESSED_INTERFACE_BITMAP
9395 return STELEMREF_COMPLEX;
9397 return STELEMREF_INTERFACE;
9399 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9400 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9401 return STELEMREF_COMPLEX;
9402 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9403 return STELEMREF_SEALED_CLASS;
9404 return STELEMREF_CLASS;
9410 load_array_element_address (MonoMethodBuilder *mb)
9412 mono_mb_emit_ldarg (mb, 0);
9413 mono_mb_emit_ldarg (mb, 1);
9414 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9418 load_array_class (MonoMethodBuilder *mb, int aklass)
9420 mono_mb_emit_ldarg (mb, 0);
9421 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9422 mono_mb_emit_byte (mb, CEE_LDIND_I);
9423 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9424 mono_mb_emit_byte (mb, CEE_LDIND_I);
9425 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9426 mono_mb_emit_byte (mb, CEE_LDIND_I);
9427 mono_mb_emit_stloc (mb, aklass);
9431 load_value_class (MonoMethodBuilder *mb, int vklass)
9433 mono_mb_emit_ldarg (mb, 2);
9434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9435 mono_mb_emit_byte (mb, CEE_LDIND_I);
9436 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9437 mono_mb_emit_byte (mb, CEE_LDIND_I);
9438 mono_mb_emit_stloc (mb, vklass);
9444 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9446 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9447 printf ("slow vstore of %s\n", name);
9453 * The wrapper info for the wrapper is a WrapperInfo structure.
9456 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9457 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9458 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9459 * - Add a case for arrays of arrays.
9462 get_virtual_stelemref_wrapper (int kind)
9464 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9465 static MonoMethodSignature *signature;
9466 MonoMethodBuilder *mb;
9469 const char *param_names [16];
9471 int aklass, vklass, vtable, uiid;
9472 int array_slot_addr;
9475 if (cached_methods [kind])
9476 return cached_methods [kind];
9478 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9479 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9483 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9485 /* void this::stelemref (size_t idx, void* value) */
9486 sig->ret = &mono_defaults.void_class->byval_arg;
9487 sig->hasthis = TRUE;
9488 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9489 sig->params [1] = &mono_defaults.object_class->byval_arg;
9494 param_names [0] = "index";
9495 param_names [1] = "value";
9496 mono_mb_set_param_names (mb, param_names);
9498 /*For now simply call plain old stelemref*/
9500 case STELEMREF_OBJECT:
9501 /* ldelema (implicit bound check) */
9502 load_array_element_address (mb);
9504 mono_mb_emit_ldarg (mb, 2);
9505 mono_mb_emit_byte (mb, CEE_STIND_REF);
9506 mono_mb_emit_byte (mb, CEE_RET);
9509 case STELEMREF_COMPLEX:
9511 <ldelema (bound check)>
9514 if (!mono_object_isinst (value, aklass))
9518 *array_slot_addr = value;
9521 throw new ArrayTypeMismatchException ();
9524 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9525 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9529 /*Use this to debug/record stores that are going thru the slow path*/
9530 MonoMethodSignature *csig;
9531 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9532 csig->ret = &mono_defaults.void_class->byval_arg;
9533 csig->params [0] = &mono_defaults.object_class->byval_arg;
9534 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9535 csig->params [2] = &mono_defaults.object_class->byval_arg;
9536 mono_mb_emit_ldarg (mb, 0);
9537 mono_mb_emit_ldarg (mb, 1);
9538 mono_mb_emit_ldarg (mb, 2);
9539 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9543 /* ldelema (implicit bound check) */
9544 load_array_element_address (mb);
9545 mono_mb_emit_stloc (mb, array_slot_addr);
9547 /* if (!value) goto do_store */
9548 mono_mb_emit_ldarg (mb, 2);
9549 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9551 /* aklass = array->vtable->klass->element_class */
9552 load_array_class (mb, aklass);
9554 /*if (mono_object_isinst (value, aklass)) */
9555 mono_mb_emit_ldarg (mb, 2);
9556 mono_mb_emit_ldloc (mb, aklass);
9557 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9558 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9561 mono_mb_patch_branch (mb, b1);
9562 mono_mb_emit_ldloc (mb, array_slot_addr);
9563 mono_mb_emit_ldarg (mb, 2);
9564 mono_mb_emit_byte (mb, CEE_STIND_REF);
9565 mono_mb_emit_byte (mb, CEE_RET);
9568 mono_mb_patch_branch (mb, b2);
9570 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9573 case STELEMREF_SEALED_CLASS:
9575 <ldelema (bound check)>
9579 aklass = array->vtable->klass->element_class;
9580 vklass = value->vtable->klass;
9582 if (vklass != aklass)
9586 *array_slot_addr = value;
9589 throw new ArrayTypeMismatchException ();
9591 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9592 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9593 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9596 /* ldelema (implicit bound check) */
9597 load_array_element_address (mb);
9598 mono_mb_emit_stloc (mb, array_slot_addr);
9600 /* if (!value) goto do_store */
9601 mono_mb_emit_ldarg (mb, 2);
9602 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9604 /* aklass = array->vtable->klass->element_class */
9605 load_array_class (mb, aklass);
9607 /* vklass = value->vtable->klass */
9608 load_value_class (mb, vklass);
9610 /*if (vklass != aklass) goto do_exception; */
9611 mono_mb_emit_ldloc (mb, aklass);
9612 mono_mb_emit_ldloc (mb, vklass);
9613 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9616 mono_mb_patch_branch (mb, b1);
9617 mono_mb_emit_ldloc (mb, array_slot_addr);
9618 mono_mb_emit_ldarg (mb, 2);
9619 mono_mb_emit_byte (mb, CEE_STIND_REF);
9620 mono_mb_emit_byte (mb, CEE_RET);
9623 mono_mb_patch_branch (mb, b2);
9624 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9627 case STELEMREF_CLASS:
9630 <ldelema (bound check)>
9634 aklass = array->vtable->klass->element_class;
9635 vklass = value->vtable->klass;
9637 if (vklass->idepth < aklass->idepth)
9640 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9644 *array_slot_addr = value;
9648 throw new ArrayTypeMismatchException ();
9650 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9651 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9652 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9654 /* ldelema (implicit bound check) */
9655 load_array_element_address (mb);
9656 mono_mb_emit_stloc (mb, array_slot_addr);
9658 /* if (!value) goto do_store */
9659 mono_mb_emit_ldarg (mb, 2);
9660 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9662 /* aklass = array->vtable->klass->element_class */
9663 load_array_class (mb, aklass);
9665 /* vklass = value->vtable->klass */
9666 load_value_class (mb, vklass);
9668 /*if (mono_object_isinst (value, aklass)) */
9669 mono_mb_emit_ldarg (mb, 2);
9670 mono_mb_emit_ldloc (mb, aklass);
9671 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9672 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9674 /* if (vklass->idepth < aklass->idepth) goto failue */
9675 mono_mb_emit_ldloc (mb, vklass);
9676 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9677 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9679 mono_mb_emit_ldloc (mb, aklass);
9680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9681 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9683 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9685 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9686 mono_mb_emit_ldloc (mb, vklass);
9687 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9688 mono_mb_emit_byte (mb, CEE_LDIND_I);
9690 mono_mb_emit_ldloc (mb, aklass);
9691 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9692 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9693 mono_mb_emit_icon (mb, 1);
9694 mono_mb_emit_byte (mb, CEE_SUB);
9695 mono_mb_emit_icon (mb, sizeof (void*));
9696 mono_mb_emit_byte (mb, CEE_MUL);
9697 mono_mb_emit_byte (mb, CEE_ADD);
9698 mono_mb_emit_byte (mb, CEE_LDIND_I);
9700 mono_mb_emit_ldloc (mb, aklass);
9701 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9704 mono_mb_patch_branch (mb, b1);
9705 mono_mb_emit_ldloc (mb, array_slot_addr);
9706 mono_mb_emit_ldarg (mb, 2);
9707 mono_mb_emit_byte (mb, CEE_STIND_REF);
9708 mono_mb_emit_byte (mb, CEE_RET);
9711 mono_mb_patch_branch (mb, b2);
9712 mono_mb_patch_branch (mb, b3);
9714 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9717 case STELEMREF_INTERFACE:
9724 klass = array->obj.vtable->klass->element_class;
9726 uiid = klass->interface_id;
9727 if (uiid > vt->max_interface_id)
9729 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9732 mono_array_setref (array, index, value);
9735 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9737 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9738 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9739 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9740 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9742 /* ldelema (implicit bound check) */
9743 load_array_element_address (mb);
9744 mono_mb_emit_stloc (mb, array_slot_addr);
9746 /* if (!value) goto do_store */
9747 mono_mb_emit_ldarg (mb, 2);
9748 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9750 /* klass = array->vtable->klass->element_class */
9751 load_array_class (mb, aklass);
9753 /* vt = value->vtable */
9754 mono_mb_emit_ldarg (mb, 2);
9755 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9756 mono_mb_emit_byte (mb, CEE_LDIND_I);
9757 mono_mb_emit_stloc (mb, vtable);
9759 /* uiid = klass->interface_id; */
9760 mono_mb_emit_ldloc (mb, aklass);
9761 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9762 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9763 mono_mb_emit_stloc (mb, uiid);
9765 /*if (uiid > vt->max_interface_id)*/
9766 mono_mb_emit_ldloc (mb, uiid);
9767 mono_mb_emit_ldloc (mb, vtable);
9768 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9769 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9770 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9772 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9774 /*vt->interface_bitmap*/
9775 mono_mb_emit_ldloc (mb, vtable);
9776 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9777 mono_mb_emit_byte (mb, CEE_LDIND_I);
9780 mono_mb_emit_ldloc (mb, uiid);
9781 mono_mb_emit_icon (mb, 3);
9782 mono_mb_emit_byte (mb, CEE_SHR_UN);
9784 /*vt->interface_bitmap [(uiid) >> 3]*/
9785 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9786 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9788 /*(1 << ((uiid)&7)))*/
9789 mono_mb_emit_icon (mb, 1);
9790 mono_mb_emit_ldloc (mb, uiid);
9791 mono_mb_emit_icon (mb, 7);
9792 mono_mb_emit_byte (mb, CEE_AND);
9793 mono_mb_emit_byte (mb, CEE_SHL);
9795 /*bitwise and the whole thing*/
9796 mono_mb_emit_byte (mb, CEE_AND);
9797 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9800 mono_mb_patch_branch (mb, b1);
9801 mono_mb_emit_ldloc (mb, array_slot_addr);
9802 mono_mb_emit_ldarg (mb, 2);
9803 mono_mb_emit_byte (mb, CEE_STIND_REF);
9804 mono_mb_emit_byte (mb, CEE_RET);
9807 mono_mb_patch_branch (mb, b2);
9808 mono_mb_patch_branch (mb, b3);
9809 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9813 mono_mb_emit_ldarg (mb, 0);
9814 mono_mb_emit_ldarg (mb, 1);
9815 mono_mb_emit_ldarg (mb, 2);
9816 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9817 mono_mb_emit_byte (mb, CEE_RET);
9820 #endif /* DISABLE_JIT */
9821 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9822 info->d.virtual_stelemref.kind = kind;
9823 res = mono_mb_create (mb, signature, 4, info);
9824 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9826 mono_marshal_lock ();
9827 if (!cached_methods [kind]) {
9828 cached_methods [kind] = res;
9829 mono_marshal_unlock ();
9831 mono_marshal_unlock ();
9832 mono_free_method (res);
9836 return cached_methods [kind];
9840 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9844 g_assert (array_class->rank == 1);
9845 kind = get_virtual_stelemref_kind (array_class->element_class);
9847 return get_virtual_stelemref_wrapper (kind);
9851 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9856 *nwrappers = STELEMREF_KIND_COUNT;
9857 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9858 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9859 res [i] = get_virtual_stelemref_wrapper (i);
9864 * The wrapper info for the wrapper is a WrapperInfo structure.
9867 mono_marshal_get_stelemref (void)
9869 static MonoMethod* ret = NULL;
9870 MonoMethodSignature *sig;
9871 MonoMethodBuilder *mb;
9874 guint32 b1, b2, b3, b4;
9877 int array_slot_addr;
9882 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9885 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9887 /* void stelemref (void* array, int idx, void* value) */
9888 sig->ret = &mono_defaults.void_class->byval_arg;
9889 sig->params [0] = &mono_defaults.object_class->byval_arg;
9890 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9891 sig->params [2] = &mono_defaults.object_class->byval_arg;
9894 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9895 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9896 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9900 <ldelema (bound check)>
9904 aklass = array->vtable->klass->element_class;
9905 vklass = value->vtable->klass;
9907 if (vklass->idepth < aklass->idepth)
9910 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9914 *array_slot_addr = value;
9918 if (mono_object_isinst (value, aklass))
9921 throw new ArrayTypeMismatchException ();
9924 /* ldelema (implicit bound check) */
9925 mono_mb_emit_ldarg (mb, 0);
9926 mono_mb_emit_ldarg (mb, 1);
9927 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9928 mono_mb_emit_stloc (mb, array_slot_addr);
9930 /* if (!value) goto do_store */
9931 mono_mb_emit_ldarg (mb, 2);
9932 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9934 /* aklass = array->vtable->klass->element_class */
9935 mono_mb_emit_ldarg (mb, 0);
9936 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9937 mono_mb_emit_byte (mb, CEE_LDIND_I);
9938 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9939 mono_mb_emit_byte (mb, CEE_LDIND_I);
9940 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9941 mono_mb_emit_byte (mb, CEE_LDIND_I);
9942 mono_mb_emit_stloc (mb, aklass);
9944 /* vklass = value->vtable->klass */
9945 mono_mb_emit_ldarg (mb, 2);
9946 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9947 mono_mb_emit_byte (mb, CEE_LDIND_I);
9948 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9949 mono_mb_emit_byte (mb, CEE_LDIND_I);
9950 mono_mb_emit_stloc (mb, vklass);
9952 /* if (vklass->idepth < aklass->idepth) goto failue */
9953 mono_mb_emit_ldloc (mb, vklass);
9954 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9955 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9957 mono_mb_emit_ldloc (mb, aklass);
9958 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9959 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9961 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9963 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9964 mono_mb_emit_ldloc (mb, vklass);
9965 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9966 mono_mb_emit_byte (mb, CEE_LDIND_I);
9968 mono_mb_emit_ldloc (mb, aklass);
9969 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9970 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9971 mono_mb_emit_icon (mb, 1);
9972 mono_mb_emit_byte (mb, CEE_SUB);
9973 mono_mb_emit_icon (mb, sizeof (void*));
9974 mono_mb_emit_byte (mb, CEE_MUL);
9975 mono_mb_emit_byte (mb, CEE_ADD);
9976 mono_mb_emit_byte (mb, CEE_LDIND_I);
9978 mono_mb_emit_ldloc (mb, aklass);
9980 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9982 copy_pos = mono_mb_get_label (mb);
9984 mono_mb_patch_branch (mb, b1);
9985 mono_mb_emit_ldloc (mb, array_slot_addr);
9986 mono_mb_emit_ldarg (mb, 2);
9987 mono_mb_emit_byte (mb, CEE_STIND_REF);
9989 mono_mb_emit_byte (mb, CEE_RET);
9992 mono_mb_patch_branch (mb, b2);
9993 mono_mb_patch_branch (mb, b3);
9995 mono_mb_emit_ldarg (mb, 2);
9996 mono_mb_emit_ldloc (mb, aklass);
9997 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9999 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10000 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10001 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10003 mono_mb_emit_byte (mb, CEE_RET);
10005 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10006 ret = mono_mb_create (mb, sig, 4, info);
10013 * mono_marshal_get_gsharedvt_in_wrapper:
10015 * This wrapper handles calls from normal code to gsharedvt code.
10017 * The wrapper info for the wrapper is a WrapperInfo structure.
10020 mono_marshal_get_gsharedvt_in_wrapper (void)
10022 static MonoMethod* ret = NULL;
10023 MonoMethodSignature *sig;
10024 MonoMethodBuilder *mb;
10030 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10032 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10033 sig->ret = &mono_defaults.void_class->byval_arg;
10035 #ifndef DISABLE_JIT
10037 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10039 mono_mb_emit_byte (mb, CEE_RET);
10041 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10042 ret = mono_mb_create (mb, sig, 4, info);
10049 * mono_marshal_get_gsharedvt_out_wrapper:
10051 * This wrapper handles calls from gsharedvt code to normal code.
10053 * The wrapper info for the wrapper is a WrapperInfo structure.
10056 mono_marshal_get_gsharedvt_out_wrapper (void)
10058 static MonoMethod* ret = NULL;
10059 MonoMethodSignature *sig;
10060 MonoMethodBuilder *mb;
10066 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10068 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10069 sig->ret = &mono_defaults.void_class->byval_arg;
10071 #ifndef DISABLE_JIT
10073 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10075 mono_mb_emit_byte (mb, CEE_RET);
10077 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10078 ret = mono_mb_create (mb, sig, 4, info);
10087 MonoMethod *method;
10090 /* LOCKING: vars accessed under the marshal lock */
10091 static ArrayElemAddr *elem_addr_cache = NULL;
10092 static int elem_addr_cache_size = 0;
10093 static int elem_addr_cache_next = 0;
10096 * mono_marshal_get_array_address:
10097 * @rank: rank of the array type
10098 * @elem_size: size in bytes of an element of an array.
10100 * Returns a MonoMethod that implements the code to get the address
10101 * of an element in a multi-dimenasional array of @rank dimensions.
10102 * The returned method takes an array as the first argument and then
10103 * @rank indexes for the @rank dimensions.
10104 * If ELEM_SIZE is 0, read the array size from the array object.
10107 mono_marshal_get_array_address (int rank, int elem_size)
10110 MonoMethodBuilder *mb;
10111 MonoMethodSignature *sig;
10114 int i, bounds, ind, realidx;
10115 int branch_pos, *branch_positions;
10119 mono_marshal_lock ();
10120 for (i = 0; i < elem_addr_cache_next; ++i) {
10121 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10122 ret = elem_addr_cache [i].method;
10126 mono_marshal_unlock ();
10130 branch_positions = g_new0 (int, rank);
10132 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10134 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10135 sig->ret = &mono_defaults.int_class->byval_arg;
10136 sig->params [0] = &mono_defaults.object_class->byval_arg;
10137 for (i = 0; i < rank; ++i) {
10138 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10141 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10142 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10145 #ifndef DISABLE_JIT
10146 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10147 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10148 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10150 /* bounds = array->bounds; */
10151 mono_mb_emit_ldarg (mb, 0);
10152 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10153 mono_mb_emit_byte (mb, CEE_LDIND_I);
10154 mono_mb_emit_stloc (mb, bounds);
10156 /* ind is the overall element index, realidx is the partial index in a single dimension */
10157 /* ind = idx0 - bounds [0].lower_bound */
10158 mono_mb_emit_ldarg (mb, 1);
10159 mono_mb_emit_ldloc (mb, bounds);
10160 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10161 mono_mb_emit_byte (mb, CEE_ADD);
10162 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10163 mono_mb_emit_byte (mb, CEE_SUB);
10164 mono_mb_emit_stloc (mb, ind);
10165 /* if (ind >= bounds [0].length) goto exeception; */
10166 mono_mb_emit_ldloc (mb, ind);
10167 mono_mb_emit_ldloc (mb, bounds);
10168 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10169 mono_mb_emit_byte (mb, CEE_ADD);
10170 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10171 /* note that we use unsigned comparison */
10172 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10174 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10175 * We could also decide to ignore the passed elem_size and get it
10176 * from the array object, to reduce the number of methods we generate:
10177 * the additional cost is 3 memory loads and a non-immediate mul.
10179 for (i = 1; i < rank; ++i) {
10180 /* realidx = idxi - bounds [i].lower_bound */
10181 mono_mb_emit_ldarg (mb, 1 + i);
10182 mono_mb_emit_ldloc (mb, bounds);
10183 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10184 mono_mb_emit_byte (mb, CEE_ADD);
10185 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10186 mono_mb_emit_byte (mb, CEE_SUB);
10187 mono_mb_emit_stloc (mb, realidx);
10188 /* if (realidx >= bounds [i].length) goto exeception; */
10189 mono_mb_emit_ldloc (mb, realidx);
10190 mono_mb_emit_ldloc (mb, bounds);
10191 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10192 mono_mb_emit_byte (mb, CEE_ADD);
10193 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10194 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10195 /* ind = ind * bounds [i].length + realidx */
10196 mono_mb_emit_ldloc (mb, ind);
10197 mono_mb_emit_ldloc (mb, bounds);
10198 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10199 mono_mb_emit_byte (mb, CEE_ADD);
10200 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10201 mono_mb_emit_byte (mb, CEE_MUL);
10202 mono_mb_emit_ldloc (mb, realidx);
10203 mono_mb_emit_byte (mb, CEE_ADD);
10204 mono_mb_emit_stloc (mb, ind);
10207 /* return array->vector + ind * element_size */
10208 mono_mb_emit_ldarg (mb, 0);
10209 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10210 mono_mb_emit_ldloc (mb, ind);
10212 mono_mb_emit_icon (mb, elem_size);
10214 /* Load arr->vtable->klass->sizes.element_class */
10215 mono_mb_emit_ldarg (mb, 0);
10216 mono_mb_emit_byte (mb, CEE_CONV_I);
10217 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10218 mono_mb_emit_byte (mb, CEE_ADD);
10219 mono_mb_emit_byte (mb, CEE_LDIND_I);
10220 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10221 mono_mb_emit_byte (mb, CEE_ADD);
10222 mono_mb_emit_byte (mb, CEE_LDIND_I);
10223 /* sizes is an union, so this reads sizes.element_size */
10224 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10225 mono_mb_emit_byte (mb, CEE_ADD);
10226 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10228 mono_mb_emit_byte (mb, CEE_MUL);
10229 mono_mb_emit_byte (mb, CEE_ADD);
10230 mono_mb_emit_byte (mb, CEE_RET);
10232 /* patch the branches to get here and throw */
10233 for (i = 1; i < rank; ++i) {
10234 mono_mb_patch_branch (mb, branch_positions [i]);
10236 mono_mb_patch_branch (mb, branch_pos);
10237 /* throw exception */
10238 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10240 g_free (branch_positions);
10241 #endif /* DISABLE_JIT */
10243 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10244 info->d.element_addr.rank = rank;
10245 info->d.element_addr.elem_size = elem_size;
10246 ret = mono_mb_create (mb, sig, 4, info);
10249 /* cache the result */
10251 mono_marshal_lock ();
10252 for (i = 0; i < elem_addr_cache_next; ++i) {
10253 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10254 /* FIXME: free ret */
10255 ret = elem_addr_cache [i].method;
10261 if (elem_addr_cache_next >= elem_addr_cache_size) {
10262 int new_size = elem_addr_cache_size + 4;
10263 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10264 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10265 g_free (elem_addr_cache);
10266 elem_addr_cache = new_array;
10267 elem_addr_cache_size = new_size;
10269 elem_addr_cache [elem_addr_cache_next].rank = rank;
10270 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10271 elem_addr_cache [elem_addr_cache_next].method = ret;
10272 elem_addr_cache_next ++;
10274 mono_marshal_unlock ();
10279 * mono_marshal_get_array_accessor_wrapper:
10281 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10284 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10286 MonoMethodSignature *sig;
10287 MonoMethodBuilder *mb;
10291 MonoGenericContext *ctx = NULL;
10292 MonoMethod *orig_method = NULL;
10293 MonoGenericContainer *container = NULL;
10297 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10298 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10299 * FIXME: Use generic methods.
10306 g_assert_not_reached ();
10308 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10309 if ((res = mono_marshal_find_in_cache (cache, method)))
10313 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10316 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10318 #ifndef DISABLE_JIT
10319 /* Call the method */
10321 mono_mb_emit_ldarg (mb, 0);
10322 for (i = 0; i < sig->param_count; i++)
10323 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10327 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10328 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10330 mono_mb_emit_managed_call (mb, method, NULL);
10332 mono_mb_emit_byte (mb, CEE_RET);
10335 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10336 info->d.array_accessor.method = method;
10340 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10341 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10343 res = mono_mb_create_and_cache_full (cache, method,
10344 mb, sig, sig->param_count + 16,
10353 mono_marshal_alloc (gulong size, MonoError *error)
10357 mono_error_init (error);
10360 res = CoTaskMemAlloc (size);
10362 res = g_try_malloc ((gulong)size);
10364 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10369 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10371 ves_icall_marshal_alloc (gulong size)
10374 void *ret = mono_marshal_alloc (size, &error);
10375 if (!mono_error_ok (&error)) {
10376 mono_error_set_pending_exception (&error);
10384 mono_marshal_free (gpointer ptr)
10387 CoTaskMemFree (ptr);
10394 mono_marshal_free_array (gpointer *ptr, int size)
10401 for (i = 0; i < size; i++)
10407 mono_marshal_string_to_utf16 (MonoString *s)
10409 return s ? mono_string_chars (s) : NULL;
10412 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10414 mono_marshal_string_to_utf16_copy (MonoString *s)
10420 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10421 if (!mono_error_ok (&error)) {
10422 mono_error_set_pending_exception (&error);
10425 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10426 res [mono_string_length (s)] = 0;
10432 * mono_marshal_set_last_error:
10434 * This function is invoked to set the last error value from a P/Invoke call
10435 * which has SetLastError set.
10438 mono_marshal_set_last_error (void)
10441 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10443 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10448 mono_marshal_set_last_error_windows (int error)
10451 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10456 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10457 gpointer dest, gint32 length)
10462 MONO_CHECK_ARG_NULL (src,);
10463 MONO_CHECK_ARG_NULL (dest,);
10465 if (src->obj.vtable->klass->rank != 1) {
10466 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10469 if (start_index < 0) {
10470 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10474 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10477 if (start_index + length > mono_array_length (src)) {
10478 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10482 element_size = mono_array_element_size (src->obj.vtable->klass);
10484 /* no references should be involved */
10485 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10487 memcpy (dest, source_addr, length * element_size);
10491 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10492 MonoArray *dest, gint32 length)
10497 MONO_CHECK_ARG_NULL (src,);
10498 MONO_CHECK_ARG_NULL (dest,);
10500 if (dest->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 (dest)) {
10513 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10516 element_size = mono_array_element_size (dest->obj.vtable->klass);
10518 /* no references should be involved */
10519 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10521 memcpy (dest_addr, src, length * element_size);
10525 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10530 return mono_string_new (mono_domain_get (), ptr);
10534 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10537 MonoString *result = NULL;
10538 mono_error_init (&error);
10540 mono_error_set_argument_null (&error, "ptr", "");
10542 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10543 mono_error_set_pending_exception (&error);
10548 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10551 MonoString *res = NULL;
10552 MonoDomain *domain = mono_domain_get ();
10562 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10563 if (!mono_error_ok (&error)) {
10564 mono_error_set_pending_exception (&error);
10571 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10574 MonoString *res = NULL;
10575 MonoDomain *domain = mono_domain_get ();
10577 mono_error_init (&error);
10581 mono_error_set_argument_null (&error, "ptr", "");
10583 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10586 if (!mono_error_ok (&error))
10587 mono_error_set_pending_exception (&error);
10592 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10594 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10598 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10604 MONO_CHECK_ARG_NULL (rtype, 0);
10606 type = rtype->type;
10607 klass = mono_class_from_mono_type (type);
10608 if (!mono_class_init (klass)) {
10609 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10613 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10615 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10616 return sizeof (gpointer);
10617 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10619 MonoException *exc;
10621 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10622 exc = mono_get_exception_argument ("t", msg);
10624 mono_set_pending_exception (exc);
10628 return mono_class_native_size (klass, NULL);
10632 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10635 MonoMethod *method;
10638 MONO_CHECK_ARG_NULL (obj,);
10639 MONO_CHECK_ARG_NULL (dst,);
10641 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10645 pa [2] = &delete_old;
10647 mono_runtime_invoke_checked (method, NULL, pa, &error);
10648 if (!mono_error_ok (&error))
10649 mono_error_set_pending_exception (&error);
10653 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10655 MonoMethod *method;
10658 mono_error_init (error);
10660 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10665 mono_runtime_invoke_checked (method, NULL, pa, error);
10669 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10674 MONO_CHECK_ARG_NULL (src,);
10675 MONO_CHECK_ARG_NULL (dst,);
10677 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10679 if (t->type == MONO_TYPE_VALUETYPE) {
10680 MonoException *exc;
10683 tmp = g_strdup_printf ("Destination is a boxed value type.");
10684 exc = mono_get_exception_argument ("dst", tmp);
10687 mono_set_pending_exception (exc);
10691 ptr_to_structure (src, dst, &error);
10692 if (!mono_error_ok (&error))
10693 mono_error_set_pending_exception (&error);
10697 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10701 MonoDomain *domain = mono_domain_get ();
10706 MONO_CHECK_ARG_NULL (type, NULL);
10708 klass = mono_class_from_mono_type (type->type);
10709 if (!mono_class_init (klass)) {
10710 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10714 res = mono_object_new_checked (domain, klass, &error);
10715 if (!mono_error_ok (&error)) {
10716 mono_error_set_pending_exception (&error);
10720 ptr_to_structure (src, res, &error);
10721 if (!mono_error_ok (&error)) {
10722 mono_error_set_pending_exception (&error);
10730 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10732 MonoMarshalType *info;
10735 int match_index = -1;
10737 MONO_CHECK_ARG_NULL (type, 0);
10738 MONO_CHECK_ARG_NULL (field_name, 0);
10740 fname = mono_string_to_utf8 (field_name);
10741 klass = mono_class_from_mono_type (type->type);
10742 if (!mono_class_init (klass)) {
10743 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10747 while (klass && match_index == -1) {
10748 MonoClassField* field;
10750 gpointer iter = NULL;
10751 while ((field = mono_class_get_fields (klass, &iter))) {
10752 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10754 if (!strcmp (fname, mono_field_get_name (field))) {
10761 if (match_index == -1)
10762 klass = klass->parent;
10767 if(match_index == -1) {
10768 MonoException* exc;
10771 /* Get back original class instance */
10772 klass = mono_class_from_mono_type (type->type);
10774 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10775 exc = mono_get_exception_argument ("fieldName", tmp);
10778 mono_set_pending_exception ((MonoException*)exc);
10782 info = mono_marshal_load_type_info (klass);
10783 return info->fields [match_index].offset;
10787 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10792 tres = mono_string_to_utf8 (string);
10796 len = strlen (tres) + 1;
10797 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10798 memcpy (ret, tres, len);
10803 return mono_string_to_utf8 (string);
10808 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10810 if (string == NULL)
10813 #ifdef TARGET_WIN32
10814 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10815 ((mono_string_length (string) + 1) * 2);
10817 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10819 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10820 res [mono_string_length (string)] = 0;
10826 mono_struct_delete_old (MonoClass *klass, char *ptr)
10828 MonoMarshalType *info;
10831 info = mono_marshal_load_type_info (klass);
10833 for (i = 0; i < info->num_fields; i++) {
10834 MonoMarshalConv conv;
10835 MonoType *ftype = info->fields [i].field->type;
10838 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10841 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10842 klass->unicode, &conv);
10844 cpos = ptr + info->fields [i].offset;
10847 case MONO_MARSHAL_CONV_NONE:
10848 if (MONO_TYPE_ISSTRUCT (ftype)) {
10849 mono_struct_delete_old (ftype->data.klass, cpos);
10853 case MONO_MARSHAL_CONV_STR_LPWSTR:
10854 /* We assume this field points inside a MonoString */
10856 case MONO_MARSHAL_CONV_STR_LPTSTR:
10857 #ifdef TARGET_WIN32
10858 /* We assume this field points inside a MonoString
10862 case MONO_MARSHAL_CONV_STR_LPSTR:
10863 case MONO_MARSHAL_CONV_STR_BSTR:
10864 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10865 case MONO_MARSHAL_CONV_STR_TBSTR:
10866 mono_marshal_free (*(gpointer *)cpos);
10876 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10880 MONO_CHECK_ARG_NULL (src,);
10881 MONO_CHECK_ARG_NULL (type,);
10883 klass = mono_class_from_mono_type (type->type);
10884 if (!mono_class_init (klass)) {
10885 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10889 mono_struct_delete_old (klass, (char *)src);
10893 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10896 size_t s = (size_t)size;
10899 /* This returns a valid pointer for size 0 on MS.NET */
10903 res = GlobalAlloc (GMEM_FIXED, s);
10905 res = g_try_malloc (s);
10908 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10916 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10919 size_t s = (size_t)size;
10922 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10927 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10929 res = g_try_realloc (ptr, s);
10932 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10940 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10950 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10955 res = CoTaskMemAlloc (size);
10957 if ((gulong)size == 0)
10958 /* This returns a valid pointer for size 0 on MS.NET */
10961 res = g_try_malloc ((gulong)size);
10964 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10971 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10974 CoTaskMemFree (ptr);
10981 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10986 res = CoTaskMemRealloc (ptr, size);
10988 res = g_try_realloc (ptr, (gulong)size);
10991 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10998 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11000 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11004 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11006 MonoClass *klass = mono_type_get_class (type->type);
11007 if (!mono_class_init (klass)) {
11008 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11012 return mono_ftnptr_to_delegate (klass, ftn);
11016 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11018 return mono_delegate_to_ftnptr (delegate);
11022 * mono_marshal_is_loading_type_info:
11024 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11028 mono_marshal_is_loading_type_info (MonoClass *klass)
11030 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11032 return g_slist_find (loads_list, klass) != NULL;
11036 * mono_marshal_load_type_info:
11038 * Initialize klass->marshal_info using information from metadata. This function can
11039 * recursively call itself, and the caller is responsible to avoid that by calling
11040 * mono_marshal_is_loading_type_info () beforehand.
11042 * LOCKING: Acquires the loader lock.
11045 mono_marshal_load_type_info (MonoClass* klass)
11048 guint32 native_size = 0, min_align = 1, packing;
11049 MonoMarshalType *info;
11050 MonoClassField* field;
11053 GSList *loads_list;
11055 g_assert (klass != NULL);
11057 if (klass->marshal_info)
11058 return klass->marshal_info;
11060 if (!klass->inited)
11061 mono_class_init (klass);
11063 if (klass->marshal_info)
11064 return klass->marshal_info;
11067 * This function can recursively call itself, so we keep the list of classes which are
11068 * under initialization in a TLS list.
11070 g_assert (!mono_marshal_is_loading_type_info (klass));
11071 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11072 loads_list = g_slist_prepend (loads_list, klass);
11073 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11076 while ((field = mono_class_get_fields (klass, &iter))) {
11077 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11079 if (mono_field_is_deleted (field))
11084 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11086 /* The mempool is protected by the loader lock */
11087 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11088 info->num_fields = count;
11090 /* Try to find a size for this type in metadata */
11091 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11093 if (klass->parent) {
11094 int parent_size = mono_class_native_size (klass->parent, NULL);
11096 /* Add parent size to real size */
11097 native_size += parent_size;
11098 info->native_size = parent_size;
11101 packing = klass->packing_size ? klass->packing_size : 8;
11104 while ((field = mono_class_get_fields (klass, &iter))) {
11108 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11111 if (mono_field_is_deleted (field))
11113 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11114 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11115 NULL, NULL, &info->fields [j].mspec);
11117 info->fields [j].field = field;
11119 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11120 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11121 /* This field is a hack inserted by MCS to empty structures */
11126 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11127 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11128 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11129 &align, TRUE, klass->unicode);
11130 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11131 min_align = MAX (align, min_align);
11132 info->fields [j].offset = info->native_size;
11133 info->fields [j].offset += align - 1;
11134 info->fields [j].offset &= ~(align - 1);
11135 info->native_size = info->fields [j].offset + size;
11137 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11138 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11139 &align, TRUE, klass->unicode);
11140 min_align = MAX (align, min_align);
11141 info->fields [j].offset = field->offset - sizeof (MonoObject);
11142 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11148 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11149 info->native_size = MAX (native_size, info->native_size);
11151 * If the provided Size is equal or larger than the calculated size, and there
11152 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11154 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11155 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11158 min_align = MIN (min_align, packing);
11162 if (info->native_size & (min_align - 1)) {
11163 info->native_size += min_align - 1;
11164 info->native_size &= ~(min_align - 1);
11167 info->min_align = min_align;
11169 /* Update the class's blittable info, if the layouts don't match */
11170 if (info->native_size != mono_class_value_size (klass, NULL))
11171 klass->blittable = FALSE;
11173 /* If this is an array type, ensure that we have element info */
11174 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11175 mono_marshal_load_type_info (klass->element_class);
11178 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11179 loads_list = g_slist_remove (loads_list, klass);
11180 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11182 mono_marshal_lock ();
11183 if (!klass->marshal_info) {
11184 /*We do double-checking locking on marshal_info */
11185 mono_memory_barrier ();
11186 klass->marshal_info = info;
11188 mono_marshal_unlock ();
11190 return klass->marshal_info;
11194 * mono_class_native_size:
11197 * Returns: the native size of an object instance (when marshaled
11198 * to unmanaged code)
11201 mono_class_native_size (MonoClass *klass, guint32 *align)
11203 if (!klass->marshal_info) {
11204 if (mono_marshal_is_loading_type_info (klass)) {
11209 mono_marshal_load_type_info (klass);
11214 *align = klass->marshal_info->min_align;
11216 return klass->marshal_info->native_size;
11220 * mono_type_native_stack_size:
11221 * @t: the type to return the size it uses on the stack
11223 * Returns: the number of bytes required to hold an instance of this
11224 * type on the native stack
11227 mono_type_native_stack_size (MonoType *t, guint32 *align)
11231 g_assert (t != NULL);
11237 *align = sizeof (gpointer);
11238 return sizeof (gpointer);
11242 case MONO_TYPE_BOOLEAN:
11243 case MONO_TYPE_CHAR:
11254 case MONO_TYPE_STRING:
11255 case MONO_TYPE_OBJECT:
11256 case MONO_TYPE_CLASS:
11257 case MONO_TYPE_SZARRAY:
11258 case MONO_TYPE_PTR:
11259 case MONO_TYPE_FNPTR:
11260 case MONO_TYPE_ARRAY:
11261 *align = sizeof (gpointer);
11262 return sizeof (gpointer);
11267 *align = MONO_ABI_ALIGNOF (double);
11271 *align = MONO_ABI_ALIGNOF (gint64);
11273 case MONO_TYPE_GENERICINST:
11274 if (!mono_type_generic_inst_is_valuetype (t)) {
11275 *align = sizeof (gpointer);
11276 return sizeof (gpointer);
11279 case MONO_TYPE_TYPEDBYREF:
11280 case MONO_TYPE_VALUETYPE: {
11282 MonoClass *klass = mono_class_from_mono_type (t);
11284 if (klass->enumtype)
11285 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11287 size = mono_class_native_size (klass, align);
11288 *align = *align + 3;
11298 g_error ("type 0x%02x unknown", t->type);
11304 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11305 gboolean as_field, gboolean unicode)
11307 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11310 switch (native_type) {
11311 case MONO_NATIVE_BOOLEAN:
11314 case MONO_NATIVE_I1:
11315 case MONO_NATIVE_U1:
11318 case MONO_NATIVE_I2:
11319 case MONO_NATIVE_U2:
11320 case MONO_NATIVE_VARIANTBOOL:
11323 case MONO_NATIVE_I4:
11324 case MONO_NATIVE_U4:
11325 case MONO_NATIVE_ERROR:
11328 case MONO_NATIVE_I8:
11329 case MONO_NATIVE_U8:
11330 *align = MONO_ABI_ALIGNOF (gint64);
11332 case MONO_NATIVE_R4:
11335 case MONO_NATIVE_R8:
11336 *align = MONO_ABI_ALIGNOF (double);
11338 case MONO_NATIVE_INT:
11339 case MONO_NATIVE_UINT:
11340 case MONO_NATIVE_LPSTR:
11341 case MONO_NATIVE_LPWSTR:
11342 case MONO_NATIVE_LPTSTR:
11343 case MONO_NATIVE_BSTR:
11344 case MONO_NATIVE_ANSIBSTR:
11345 case MONO_NATIVE_TBSTR:
11346 case MONO_NATIVE_LPARRAY:
11347 case MONO_NATIVE_SAFEARRAY:
11348 case MONO_NATIVE_IUNKNOWN:
11349 case MONO_NATIVE_IDISPATCH:
11350 case MONO_NATIVE_INTERFACE:
11351 case MONO_NATIVE_ASANY:
11352 case MONO_NATIVE_FUNC:
11353 case MONO_NATIVE_LPSTRUCT:
11354 *align = MONO_ABI_ALIGNOF (gpointer);
11355 return sizeof (gpointer);
11356 case MONO_NATIVE_STRUCT:
11357 klass = mono_class_from_mono_type (type);
11358 if (klass == mono_defaults.object_class &&
11359 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11363 return mono_class_native_size (klass, align);
11364 case MONO_NATIVE_BYVALTSTR: {
11365 int esize = unicode ? 2: 1;
11368 return mspec->data.array_data.num_elem * esize;
11370 case MONO_NATIVE_BYVALARRAY: {
11371 // FIXME: Have to consider ArraySubType
11373 klass = mono_class_from_mono_type (type);
11374 if (klass->element_class == mono_defaults.char_class) {
11375 esize = unicode ? 2 : 1;
11378 esize = mono_class_native_size (klass->element_class, align);
11381 return mspec->data.array_data.num_elem * esize;
11383 case MONO_NATIVE_CUSTOM:
11384 *align = sizeof (gpointer);
11385 return sizeof (gpointer);
11387 case MONO_NATIVE_CURRENCY:
11388 case MONO_NATIVE_VBBYREFSTR:
11390 g_error ("native type %02x not implemented", native_type);
11393 g_assert_not_reached ();
11397 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11399 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11408 t = &o->vtable->klass->byval_arg;
11412 case MONO_TYPE_PTR:
11415 case MONO_TYPE_BOOLEAN:
11418 case MONO_TYPE_CHAR:
11423 return mono_object_unbox (o);
11425 case MONO_TYPE_STRING:
11426 switch (string_encoding) {
11427 case MONO_NATIVE_LPWSTR:
11428 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11430 case MONO_NATIVE_LPSTR:
11431 return mono_string_to_lpstr ((MonoString*)o);
11434 g_warning ("marshaling conversion %d not implemented", string_encoding);
11435 g_assert_not_reached ();
11438 case MONO_TYPE_CLASS:
11439 case MONO_TYPE_VALUETYPE: {
11440 MonoMethod *method;
11443 MonoBoolean delete_old = FALSE;
11445 klass = t->data.klass;
11447 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11450 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11451 klass->blittable || klass->enumtype))
11452 return mono_object_unbox (o);
11454 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11455 if (!mono_error_ok (&error)) {
11456 mono_error_set_pending_exception (&error);
11460 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11461 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11465 pa [2] = &delete_old;
11467 mono_runtime_invoke_checked (method, NULL, pa, &error);
11468 if (!mono_error_ok (&error)) {
11469 mono_error_set_pending_exception (&error);
11479 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11483 /* This is a JIT icall, it sets the pending exception */
11485 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11494 t = &o->vtable->klass->byval_arg;
11496 case MONO_TYPE_STRING:
11497 switch (string_encoding) {
11498 case MONO_NATIVE_LPWSTR:
11499 case MONO_NATIVE_LPSTR:
11500 mono_marshal_free (ptr);
11503 g_warning ("marshaling conversion %d not implemented", string_encoding);
11504 g_assert_not_reached ();
11507 case MONO_TYPE_CLASS:
11508 case MONO_TYPE_VALUETYPE: {
11509 klass = t->data.klass;
11511 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11512 klass->blittable || klass->enumtype))
11515 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11516 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11522 mono_runtime_invoke_checked (method, NULL, pa, &error);
11523 if (!mono_error_ok (&error)) {
11524 mono_error_set_pending_exception (&error);
11529 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11530 mono_struct_delete_old (klass, (char *)ptr);
11533 mono_marshal_free (ptr);
11542 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11544 MonoMethodSignature *sig, *csig;
11545 MonoMethodBuilder *mb;
11550 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11551 mb->method->slot = -1;
11553 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11554 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11556 sig = mono_method_signature (method);
11557 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11558 csig->generic_param_count = 0;
11560 #ifndef DISABLE_JIT
11561 mono_mb_emit_ldarg (mb, 0);
11562 for (i = 0; i < csig->param_count; i++)
11563 mono_mb_emit_ldarg (mb, i + 1);
11564 mono_mb_emit_managed_call (mb, method, NULL);
11565 mono_mb_emit_byte (mb, CEE_RET);
11567 /* We can corlib internal methods */
11568 mb->skip_visibility = TRUE;
11570 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11571 info->d.generic_array_helper.method = method;
11572 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11580 * The mono_win32_compat_* functions are implementations of inline
11581 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11582 * although not exported by kernel32.
11584 * We map the appropiate kernel32 entries to these functions using
11585 * dllmaps declared in the global etc/mono/config.
11589 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11591 if (!dest || !source)
11594 memcpy (dest, source, length);
11598 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11600 memset (dest, fill, length);
11604 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11606 if (!dest || !source)
11609 memmove (dest, source, length);
11613 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11615 memset (dest, 0, length);
11619 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11624 for (i = 0; i < len; ++i)
11628 g_assert (i < len);
11631 while (byte && !(byte & 1))
11633 g_assert (byte == 1);
11636 *bitmask = buf [i];
11640 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11642 MonoMethodBuilder *mb;
11643 MonoMethodSignature *sig, *csig;
11644 MonoExceptionClause *clause;
11649 int i, param_count, sig_size, pos_leave;
11653 // FIXME: we need to store the exception into a MonoHandle
11654 g_assert (!mono_threads_is_coop_enabled ());
11656 klass = method->klass;
11657 image = method->klass->image;
11659 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11661 if ((res = mono_marshal_find_in_cache (cache, method)))
11664 sig = mono_method_signature (method);
11665 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11667 /* add "this" and exception param */
11668 param_count = sig->param_count + sig->hasthis + 1;
11670 /* dup & extend signature */
11671 csig = mono_metadata_signature_alloc (image, param_count);
11672 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11673 memcpy (csig, sig, sig_size);
11674 csig->param_count = param_count;
11677 csig->call_convention = MONO_CALL_DEFAULT;
11679 if (sig->hasthis) {
11681 csig->params [0] = &klass->byval_arg;
11682 /* move params up by one */
11683 for (i = 0; i < sig->param_count; i++)
11684 csig->params [i + 1] = sig->params [i];
11687 /* setup exception param as byref+[out] */
11688 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11689 &mono_defaults.exception_class->byval_arg);
11690 csig->params [param_count - 1]->byref = 1;
11691 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11693 /* convert struct return to object */
11694 if (MONO_TYPE_ISSTRUCT (sig->ret))
11695 csig->ret = &mono_defaults.object_class->byval_arg;
11697 #ifndef DISABLE_JIT
11698 /* local 0 (temp for exception object) */
11699 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11701 /* local 1 (temp for result) */
11702 if (!MONO_TYPE_IS_VOID (sig->ret))
11703 mono_mb_add_local (mb, sig->ret);
11705 /* clear exception arg */
11706 mono_mb_emit_ldarg (mb, param_count - 1);
11707 mono_mb_emit_byte (mb, CEE_LDNULL);
11708 mono_mb_emit_byte (mb, CEE_STIND_REF);
11711 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11712 clause->try_offset = mono_mb_get_label (mb);
11714 /* push method's args */
11715 for (i = 0; i < param_count - 1; i++) {
11719 mono_mb_emit_ldarg (mb, i);
11721 /* get the byval type of the param */
11722 klass = mono_class_from_mono_type (csig->params [i]);
11723 type = &klass->byval_arg;
11725 /* unbox struct args */
11726 if (MONO_TYPE_ISSTRUCT (type)) {
11727 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11729 /* byref args & and the "this" arg must remain a ptr.
11730 Otherwise make a copy of the value type */
11731 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11732 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11734 csig->params [i] = &mono_defaults.object_class->byval_arg;
11739 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11740 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11742 mono_mb_emit_op (mb, CEE_CALL, method);
11744 /* save result at local 1 */
11745 if (!MONO_TYPE_IS_VOID (sig->ret))
11746 mono_mb_emit_stloc (mb, 1);
11748 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11751 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11752 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11753 clause->data.catch_class = mono_defaults.object_class;
11755 clause->handler_offset = mono_mb_get_label (mb);
11757 /* store exception at local 0 */
11758 mono_mb_emit_stloc (mb, 0);
11759 mono_mb_emit_ldarg (mb, param_count - 1);
11760 mono_mb_emit_ldloc (mb, 0);
11761 mono_mb_emit_byte (mb, CEE_STIND_REF);
11762 mono_mb_emit_branch (mb, CEE_LEAVE);
11764 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11766 mono_mb_set_clauses (mb, 1, clause);
11768 mono_mb_patch_branch (mb, pos_leave);
11771 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11772 mono_mb_emit_ldloc (mb, 1);
11774 /* box the return value */
11775 if (MONO_TYPE_ISSTRUCT (sig->ret))
11776 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11779 mono_mb_emit_byte (mb, CEE_RET);
11782 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11789 * mono_marshal_free_dynamic_wrappers:
11791 * Free wrappers of the dynamic method METHOD.
11794 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11796 MonoImage *image = method->klass->image;
11798 g_assert (method_is_dynamic (method));
11800 /* This could be called during shutdown */
11801 if (marshal_mutex_initialized)
11802 mono_marshal_lock ();
11804 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11805 * they could be shared with other methods ?
11807 if (image->wrapper_caches.runtime_invoke_direct_cache)
11808 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11809 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11810 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11811 // FIXME: Need to clear the caches in other images as well
11812 if (image->delegate_bound_static_invoke_cache)
11813 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11815 if (marshal_mutex_initialized)
11816 mono_marshal_unlock ();
11820 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11822 g_assert (ftnptr_eh_callback);
11823 ftnptr_eh_callback (gchandle);
11827 ftnptr_eh_callback_default (guint32 gchandle)
11829 MonoException *exc;
11830 gpointer stackdata;
11832 g_assert (gchandle >= 0);
11834 mono_threads_reset_blocking_start_unbalanced (&stackdata);
11836 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11838 mono_gchandle_free (gchandle);
11840 mono_raise_exception (exc);
11844 * mono_install_ftnptr_eh_callback:
11846 * Install a callback that should be called when there is a managed exception
11847 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11848 * managed exception to a native exception, to properly unwind the native
11849 * stack; this native exception will then be converted back to a managed
11850 * exception in their managed-to-native wrapper.
11853 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11855 ftnptr_eh_callback = callback;