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 ves_icall_mono_string_from_utf16 (gunichar2 *data)
261 MonoString *result = mono_string_from_utf16_checked (data, &error);
262 mono_error_set_pending_exception (&error);
267 mono_marshal_init (void)
269 static gboolean module_initialized = FALSE;
271 if (!module_initialized) {
272 module_initialized = TRUE;
273 mono_os_mutex_init_recursive (&marshal_mutex);
274 marshal_mutex_initialized = TRUE;
276 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
277 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
278 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
279 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
280 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
281 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
282 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
283 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
284 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
285 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
286 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
287 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
288 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
289 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
290 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
291 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
292 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
293 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
294 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
295 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
296 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
297 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
298 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
299 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
300 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
301 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
302 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
303 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
304 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
305 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
306 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
307 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
308 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
309 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
310 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
311 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
312 register_icall (g_free, "g_free", "void ptr", FALSE);
313 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
314 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
315 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
316 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
317 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
318 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
319 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
320 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
321 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
322 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
323 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
324 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
325 register_icall (mono_threads_prepare_blocking_unbalanced, "mono_threads_prepare_blocking_unbalanced", "ptr ptr", TRUE);
326 register_icall (mono_threads_finish_blocking_unbalanced, "mono_threads_finish_blocking_unbalanced", "void ptr ptr", TRUE);
328 mono_cominterop_init ();
329 mono_remoting_init ();
334 mono_marshal_cleanup (void)
336 mono_cominterop_cleanup ();
338 mono_native_tls_free (load_type_info_tls_id);
339 mono_native_tls_free (last_error_tls_id);
340 mono_os_mutex_destroy (&marshal_mutex);
341 marshal_mutex_initialized = FALSE;
345 mono_marshal_lock_internal (void)
347 mono_marshal_lock ();
351 mono_marshal_unlock_internal (void)
353 mono_marshal_unlock ();
356 /* This is a JIT icall, it sets the pending exception and return NULL on error */
358 mono_delegate_to_ftnptr (MonoDelegate *delegate)
361 MonoMethod *method, *wrapper;
363 uint32_t target_handle = 0;
368 if (delegate->delegate_trampoline)
369 return delegate->delegate_trampoline;
371 klass = ((MonoObject *)delegate)->vtable->klass;
372 g_assert (klass->delegate);
374 method = delegate->method;
375 if (delegate->method_is_virtual)
376 method = mono_object_get_virtual_method (delegate->target, method);
378 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
379 const char *exc_class, *exc_arg;
382 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
384 g_assert (exc_class);
385 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
391 if (delegate->target) {
392 /* Produce a location which can be embedded in JITted code */
393 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
396 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
398 delegate->delegate_trampoline = mono_compile_method (wrapper);
400 // Add the delegate to the delegate hash table
401 delegate_hash_table_add (delegate);
403 /* when the object is collected, collect the dynamic method, too */
404 mono_object_register_finalizer ((MonoObject*)delegate, &error);
405 if (!mono_error_ok (&error)) {
406 mono_error_set_pending_exception (&error);
410 return delegate->delegate_trampoline;
414 * this hash table maps from a delegate trampoline object to a weak reference
415 * of the delegate. As an optimizations with a non-moving GC we store the
416 * object pointer itself, otherwise we use a GC handle.
418 static GHashTable *delegate_hash_table;
421 delegate_hash_table_new (void) {
422 return g_hash_table_new (NULL, NULL);
426 delegate_hash_table_remove (MonoDelegate *d)
428 guint32 gchandle = 0;
430 mono_marshal_lock ();
431 if (delegate_hash_table == NULL)
432 delegate_hash_table = delegate_hash_table_new ();
433 if (mono_gc_is_moving ())
434 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
435 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
436 mono_marshal_unlock ();
437 if (gchandle && mono_gc_is_moving ())
438 mono_gchandle_free (gchandle);
442 delegate_hash_table_add (MonoDelegate *d)
445 guint32 old_gchandle;
447 mono_marshal_lock ();
448 if (delegate_hash_table == NULL)
449 delegate_hash_table = delegate_hash_table_new ();
450 if (mono_gc_is_moving ()) {
451 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
452 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
453 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
455 mono_gchandle_free (old_gchandle);
457 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
459 mono_marshal_unlock ();
463 * mono_marshal_use_aot_wrappers:
465 * Instructs this module to use AOT compatible wrappers.
468 mono_marshal_use_aot_wrappers (gboolean use)
470 use_aot_wrappers = use;
474 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
477 MonoCustomAttrInfo *cinfo;
478 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
480 /* The attribute is only available in Net 2.0 */
481 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
483 * The pinvoke attributes are stored in a real custom attribute so we have to
486 cinfo = mono_custom_attrs_from_class_checked (klass, &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);
491 if (cinfo && !mono_runtime_get_no_exec ()) {
492 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
494 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
496 if (!mono_error_ok (&error)) {
497 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
498 mono_error_cleanup (&error);
502 mono_custom_attrs_free (cinfo);
507 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
509 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
518 mono_marshal_lock ();
519 if (delegate_hash_table == NULL)
520 delegate_hash_table = delegate_hash_table_new ();
522 if (mono_gc_is_moving ()) {
523 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
524 mono_marshal_unlock ();
526 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
530 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
531 mono_marshal_unlock ();
534 /* This is a native function, so construct a delegate for it */
535 MonoMethodSignature *sig;
537 MonoMarshalSpec **mspecs;
538 MonoMethod *invoke = mono_get_delegate_invoke (klass);
539 MonoMethodPInvoke piinfo;
540 MonoObject *this_obj;
543 if (use_aot_wrappers) {
544 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
545 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
546 if (!is_ok (&error)) {
547 mono_error_set_pending_exception (&error);
551 memset (&piinfo, 0, sizeof (piinfo));
552 parse_unmanaged_function_pointer_attr (klass, &piinfo);
554 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
555 mono_method_get_marshal_info (invoke, mspecs);
556 /* Freed below so don't alloc from mempool */
557 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
560 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
563 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
565 mono_metadata_free_marshal_spec (mspecs [i]);
570 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
571 if (!mono_error_ok (&error)) {
572 mono_error_set_pending_exception (&error);
575 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
578 if (d->object.vtable->domain != mono_domain_get ()) {
579 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
587 mono_delegate_free_ftnptr (MonoDelegate *delegate)
592 delegate_hash_table_remove (delegate);
594 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
596 if (!delegate->target) {
597 /* The wrapper method is shared between delegates -> no need to free it */
606 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
609 method = mono_jit_info_get_method (ji);
610 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
612 /*the target gchandle is the first entry after size and the wrapper itself.*/
613 gchandle = GPOINTER_TO_UINT (method_data [2]);
616 mono_gchandle_free (gchandle);
618 mono_runtime_free_method (mono_object_domain (delegate), method);
622 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
624 mono_string_from_byvalstr (const char *data, int max_len)
627 MonoDomain *domain = mono_domain_get ();
633 while (len < max_len - 1 && data [len])
636 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
637 mono_error_set_pending_exception (&error);
641 /* This is a JIT icall, it sets the pending exception and return NULL on error */
643 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
646 MonoString *res = NULL;
647 MonoDomain *domain = mono_domain_get ();
653 while (data [len]) len++;
655 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
656 if (!mono_error_ok (&error)) {
657 mono_error_set_pending_exception (&error);
664 mono_array_to_savearray (MonoArray *array)
669 g_assert_not_reached ();
674 mono_array_to_lparray (MonoArray *array)
677 gpointer *nativeArray = NULL;
678 int nativeArraySize = 0;
688 klass = array->obj.vtable->klass;
690 switch (klass->element_class->byval_arg.type) {
692 g_assert_not_reached ();
694 case MONO_TYPE_CLASS:
695 nativeArraySize = array->max_length;
696 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
697 for(i = 0; i < nativeArraySize; ++i)
698 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
701 case MONO_TYPE_BOOLEAN:
714 case MONO_TYPE_VALUETYPE:
718 case MONO_TYPE_GENERICINST:
719 case MONO_TYPE_OBJECT:
720 case MONO_TYPE_ARRAY:
721 case MONO_TYPE_SZARRAY:
722 case MONO_TYPE_STRING:
724 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
725 g_assert_not_reached ();
728 return array->vector;
732 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
743 klass = array->obj.vtable->klass;
745 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
746 for(i = 0; i < array->max_length; ++i)
747 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
754 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
756 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
758 if (elclass == mono_defaults.byte_class) {
759 GError *error = NULL;
763 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
766 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
770 g_error_free (error);
773 g_assert_not_reached ();
777 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
779 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
782 /* This is a JIT icall, it sets the pending exception and returns on error */
784 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
786 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
788 if (elclass == mono_defaults.byte_class) {
790 GError *error = NULL;
792 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
794 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
795 g_error_free (error);
799 memcpy (native_arr, as, MIN (strlen (as), elnum));
802 g_assert_not_reached ();
807 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
809 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
812 static MonoStringBuilder *
813 mono_string_builder_new (int starting_string_length)
815 static MonoClass *string_builder_class;
816 static MonoMethod *sb_ctor;
817 static void *args [1];
820 int initial_len = starting_string_length;
826 MonoMethodDesc *desc;
829 string_builder_class = mono_class_get_string_builder_class ();
830 g_assert (string_builder_class);
831 desc = mono_method_desc_new (":.ctor(int)", FALSE);
832 m = mono_method_desc_search_in_class (desc, string_builder_class);
834 mono_method_desc_free (desc);
835 mono_memory_barrier ();
839 // We make a new array in the _to_builder function, so this
840 // array will always be garbage collected.
841 args [0] = &initial_len;
843 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
844 mono_error_assert_ok (&error);
847 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
848 g_assert (exc == NULL);
849 mono_error_assert_ok (&error);
851 g_assert (sb->chunkChars->max_length >= initial_len);
857 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
859 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
860 gunichar2 *charSrc = (gunichar2 *)text;
861 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
863 sb->chunkLength = string_len;
869 mono_string_utf16_to_builder2 (gunichar2 *text)
875 for (len = 0; text [len] != 0; ++len);
877 MonoStringBuilder *sb = mono_string_builder_new (len);
878 mono_string_utf16_to_builder (sb, text);
884 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
889 int len = strlen (text);
890 if (len > mono_string_builder_capacity (sb))
891 len = mono_string_builder_capacity (sb);
893 GError *error = NULL;
895 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
898 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
899 mono_string_utf16_to_builder_copy (sb, ut, copied);
901 g_error_free (error);
907 mono_string_utf8_to_builder2 (char *text)
912 int len = strlen (text);
913 MonoStringBuilder *sb = mono_string_builder_new (len);
914 mono_string_utf8_to_builder (sb, text);
921 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
927 for (len = 0; text [len] != 0; ++len);
929 if (len > mono_string_builder_capacity (sb))
930 len = mono_string_builder_capacity (sb);
932 mono_string_utf16_to_builder_copy (sb, text, len);
936 * mono_string_builder_to_utf8:
937 * @sb: the string builder
939 * Converts to utf8 the contents of the MonoStringBuilder.
941 * Returns: a utf8 string with the contents of the StringBuilder.
943 * The return value must be released with g_free.
945 * This is a JIT icall, it sets the pending exception and returns NULL on error.
948 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
951 GError *gerror = NULL;
956 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
958 guint str_len = mono_string_builder_string_length (sb);
960 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
963 g_error_free (gerror);
965 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
968 guint len = mono_string_builder_capacity (sb) + 1;
969 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
970 if (!mono_error_ok (&error)) {
973 mono_error_set_pending_exception (&error);
977 g_assert (str_len < len);
978 memcpy (res, tmp, str_len * sizeof (gchar));
988 * mono_string_builder_to_utf16:
989 * @sb: the string builder
991 * Converts to utf16 the contents of the MonoStringBuilder.
993 * Returns: a utf16 string with the contents of the StringBuilder.
995 * The return value must not be freed.
996 * This is a JIT icall, it sets the pending exception and returns NULL on error.
999 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1006 g_assert (sb->chunkChars);
1008 guint len = mono_string_builder_capacity (sb);
1013 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1014 if (!mono_error_ok (&error)) {
1015 mono_error_set_pending_exception (&error);
1024 MonoStringBuilder* chunk = sb;
1026 if (chunk->chunkLength > 0) {
1027 // Check that we will not overrun our boundaries.
1028 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1030 if (chunk->chunkLength <= len) {
1031 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1033 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1036 len -= chunk->chunkLength;
1038 chunk = chunk->chunkPrevious;
1039 } while (chunk != NULL);
1044 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1046 mono_string_to_lpstr (MonoString *s)
1051 GError *error = NULL;
1057 as = CoTaskMemAlloc (1);
1062 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1064 MonoException *exc = mono_get_exception_argument ("string", error->message);
1065 g_error_free (error);
1066 mono_set_pending_exception (exc);
1069 as = CoTaskMemAlloc (len + 1);
1070 memcpy (as, tmp, len + 1);
1075 return mono_string_to_utf8 (s);
1080 mono_string_to_ansibstr (MonoString *string_obj)
1082 g_error ("UnmanagedMarshal.BStr is not implemented.");
1087 * mono_string_to_byvalstr:
1088 * @dst: Where to store the null-terminated utf8 decoded string.
1089 * @src: the MonoString to copy.
1090 * @size: the maximum number of bytes to copy.
1092 * Copies the MonoString pointed to by @src as a utf8 string
1093 * into @dst, it copies at most @size bytes into the destination.
1096 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1101 g_assert (dst != NULL);
1102 g_assert (size > 0);
1104 memset (dst, 0, size);
1108 s = mono_string_to_utf8 (src);
1109 len = MIN (size, strlen (s));
1112 memcpy (dst, s, len);
1117 * mono_string_to_byvalwstr:
1118 * @dst: Where to store the null-terminated utf16 decoded string.
1119 * @src: the MonoString to copy.
1120 * @size: the maximum number of bytes to copy.
1122 * Copies the MonoString pointed to by @src as a utf16 string into
1123 * @dst, it copies at most @size bytes into the destination (including
1124 * a terminating 16-bit zero terminator).
1127 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1131 g_assert (dst != NULL);
1132 g_assert (size > 1);
1135 memset (dst, 0, size * 2);
1139 len = MIN (size, (mono_string_length (src)));
1140 memcpy (dst, mono_string_chars (src), size * 2);
1141 if (size <= mono_string_length (src))
1143 *((gunichar2 *) dst + len) = 0;
1146 /* this is an icall, it sets the pending exception and returns NULL on error */
1148 mono_string_new_len_wrapper (const char *text, guint length)
1151 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1152 mono_error_set_pending_exception (&error);
1159 * mono_mb_emit_exception_marshal_directive:
1161 * This function assumes ownership of MSG, which should be malloc-ed.
1164 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1169 s = mono_image_strdup (mb->method->klass->image, msg);
1174 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1177 #endif /* !DISABLE_JIT */
1180 mono_type_to_ldind (MonoType *type)
1186 switch (type->type) {
1188 return CEE_LDIND_I1;
1190 case MONO_TYPE_BOOLEAN:
1191 return CEE_LDIND_U1;
1193 return CEE_LDIND_I2;
1195 case MONO_TYPE_CHAR:
1196 return CEE_LDIND_U2;
1198 return CEE_LDIND_I4;
1200 return CEE_LDIND_U4;
1204 case MONO_TYPE_FNPTR:
1206 case MONO_TYPE_CLASS:
1207 case MONO_TYPE_STRING:
1208 case MONO_TYPE_OBJECT:
1209 case MONO_TYPE_SZARRAY:
1210 case MONO_TYPE_ARRAY:
1211 return CEE_LDIND_REF;
1214 return CEE_LDIND_I8;
1216 return CEE_LDIND_R4;
1218 return CEE_LDIND_R8;
1219 case MONO_TYPE_VALUETYPE:
1220 if (type->data.klass->enumtype) {
1221 type = mono_class_enum_basetype (type->data.klass);
1225 case MONO_TYPE_TYPEDBYREF:
1227 case MONO_TYPE_GENERICINST:
1228 type = &type->data.generic_class->container_class->byval_arg;
1231 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1237 mono_type_to_stind (MonoType *type)
1240 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1244 switch (type->type) {
1247 case MONO_TYPE_BOOLEAN:
1248 return CEE_STIND_I1;
1251 case MONO_TYPE_CHAR:
1252 return CEE_STIND_I2;
1255 return CEE_STIND_I4;
1259 case MONO_TYPE_FNPTR:
1261 case MONO_TYPE_CLASS:
1262 case MONO_TYPE_STRING:
1263 case MONO_TYPE_OBJECT:
1264 case MONO_TYPE_SZARRAY:
1265 case MONO_TYPE_ARRAY:
1266 return CEE_STIND_REF;
1269 return CEE_STIND_I8;
1271 return CEE_STIND_R4;
1273 return CEE_STIND_R8;
1274 case MONO_TYPE_VALUETYPE:
1275 if (type->data.klass->enumtype) {
1276 type = mono_class_enum_basetype (type->data.klass);
1280 case MONO_TYPE_TYPEDBYREF:
1282 case MONO_TYPE_GENERICINST:
1283 type = &type->data.generic_class->container_class->byval_arg;
1286 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1294 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1297 case MONO_MARSHAL_CONV_BOOL_I4:
1298 mono_mb_emit_ldloc (mb, 1);
1299 mono_mb_emit_ldloc (mb, 0);
1300 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1301 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1302 mono_mb_emit_byte (mb, 3);
1303 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1304 mono_mb_emit_byte (mb, CEE_BR_S);
1305 mono_mb_emit_byte (mb, 1);
1306 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1307 mono_mb_emit_byte (mb, CEE_STIND_I1);
1309 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_ldloc (mb, 0);
1312 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1313 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1314 mono_mb_emit_byte (mb, 3);
1315 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1316 mono_mb_emit_byte (mb, CEE_BR_S);
1317 mono_mb_emit_byte (mb, 1);
1318 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1319 mono_mb_emit_byte (mb, CEE_STIND_I1);
1321 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1322 MonoClass *eklass = NULL;
1325 if (type->type == MONO_TYPE_SZARRAY) {
1326 eklass = type->data.klass;
1328 g_assert_not_reached ();
1331 esize = mono_class_native_size (eklass, NULL);
1333 /* create a new array */
1334 mono_mb_emit_ldloc (mb, 1);
1335 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1336 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1337 mono_mb_emit_byte (mb, CEE_STIND_REF);
1339 if (eklass->blittable) {
1340 /* copy the elements */
1341 mono_mb_emit_ldloc (mb, 1);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I);
1343 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1344 mono_mb_emit_byte (mb, CEE_ADD);
1345 mono_mb_emit_ldloc (mb, 0);
1346 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1347 mono_mb_emit_byte (mb, CEE_PREFIX1);
1348 mono_mb_emit_byte (mb, CEE_CPBLK);
1351 int array_var, src_var, dst_var, index_var;
1352 guint32 label2, label3;
1354 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1355 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1356 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1359 mono_mb_emit_ldloc (mb, 1);
1360 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1361 mono_mb_emit_stloc (mb, array_var);
1363 /* save the old src pointer */
1364 mono_mb_emit_ldloc (mb, 0);
1365 mono_mb_emit_stloc (mb, src_var);
1366 /* save the old dst pointer */
1367 mono_mb_emit_ldloc (mb, 1);
1368 mono_mb_emit_stloc (mb, dst_var);
1370 /* Emit marshalling loop */
1371 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1372 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1373 mono_mb_emit_stloc (mb, index_var);
1376 label2 = mono_mb_get_label (mb);
1377 mono_mb_emit_ldloc (mb, index_var);
1378 mono_mb_emit_ldloc (mb, array_var);
1379 mono_mb_emit_byte (mb, CEE_LDLEN);
1380 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1382 /* src is already set */
1385 mono_mb_emit_ldloc (mb, array_var);
1386 mono_mb_emit_ldloc (mb, index_var);
1387 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1388 mono_mb_emit_stloc (mb, 1);
1390 /* Do the conversion */
1391 emit_struct_conv (mb, eklass, TRUE);
1394 mono_mb_emit_add_to_local (mb, index_var, 1);
1396 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1398 mono_mb_patch_branch (mb, label3);
1400 /* restore the old src pointer */
1401 mono_mb_emit_ldloc (mb, src_var);
1402 mono_mb_emit_stloc (mb, 0);
1403 /* restore the old dst pointer */
1404 mono_mb_emit_ldloc (mb, dst_var);
1405 mono_mb_emit_stloc (mb, 1);
1409 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1410 MonoClass *eclass = mono_defaults.char_class;
1412 /* create a new array */
1413 mono_mb_emit_ldloc (mb, 1);
1414 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1415 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1416 mono_mb_emit_byte (mb, CEE_STIND_REF);
1418 mono_mb_emit_ldloc (mb, 1);
1419 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1420 mono_mb_emit_ldloc (mb, 0);
1421 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1422 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1425 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1426 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1427 mono_mb_emit_ldloc (mb, 1);
1428 mono_mb_emit_ldloc (mb, 0);
1429 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1430 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1432 mono_mb_emit_ldloc (mb, 1);
1433 mono_mb_emit_ldloc (mb, 0);
1434 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1436 mono_mb_emit_byte (mb, CEE_STIND_REF);
1438 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1439 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1443 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1445 mono_mb_emit_ldloc (mb, 1);
1446 mono_mb_emit_ldloc (mb, 0);
1447 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1449 mono_mb_emit_byte (mb, CEE_STIND_REF);
1451 case MONO_MARSHAL_CONV_STR_LPTSTR:
1452 mono_mb_emit_ldloc (mb, 1);
1453 mono_mb_emit_ldloc (mb, 0);
1454 mono_mb_emit_byte (mb, CEE_LDIND_I);
1456 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1458 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1460 mono_mb_emit_byte (mb, CEE_STIND_REF);
1462 case MONO_MARSHAL_CONV_STR_LPSTR:
1463 mono_mb_emit_ldloc (mb, 1);
1464 mono_mb_emit_ldloc (mb, 0);
1465 mono_mb_emit_byte (mb, CEE_LDIND_I);
1466 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1467 mono_mb_emit_byte (mb, CEE_STIND_REF);
1469 case MONO_MARSHAL_CONV_STR_LPWSTR:
1470 mono_mb_emit_ldloc (mb, 1);
1471 mono_mb_emit_ldloc (mb, 0);
1472 mono_mb_emit_byte (mb, CEE_LDIND_I);
1473 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1474 mono_mb_emit_byte (mb, CEE_STIND_REF);
1476 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1477 MonoClass *klass = mono_class_from_mono_type (type);
1478 int src_var, dst_var;
1480 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1481 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1483 /* *dst = new object */
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1486 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1487 mono_mb_emit_byte (mb, CEE_STIND_REF);
1489 /* save the old src pointer */
1490 mono_mb_emit_ldloc (mb, 0);
1491 mono_mb_emit_stloc (mb, src_var);
1492 /* save the old dst pointer */
1493 mono_mb_emit_ldloc (mb, 1);
1494 mono_mb_emit_stloc (mb, dst_var);
1496 /* dst = pointer to newly created object data */
1497 mono_mb_emit_ldloc (mb, 1);
1498 mono_mb_emit_byte (mb, CEE_LDIND_I);
1499 mono_mb_emit_icon (mb, sizeof (MonoObject));
1500 mono_mb_emit_byte (mb, CEE_ADD);
1501 mono_mb_emit_stloc (mb, 1);
1503 emit_struct_conv (mb, klass, TRUE);
1505 /* restore the old src pointer */
1506 mono_mb_emit_ldloc (mb, src_var);
1507 mono_mb_emit_stloc (mb, 0);
1508 /* restore the old dst pointer */
1509 mono_mb_emit_ldloc (mb, dst_var);
1510 mono_mb_emit_stloc (mb, 1);
1513 case MONO_MARSHAL_CONV_DEL_FTN: {
1514 MonoClass *klass = mono_class_from_mono_type (type);
1516 mono_mb_emit_ldloc (mb, 1);
1517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1518 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_byte (mb, CEE_LDIND_I);
1521 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1522 mono_mb_emit_byte (mb, CEE_STIND_REF);
1525 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1526 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1530 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1531 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1532 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1533 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1535 #endif /* DISABLE_COM */
1537 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1539 * Passing SafeHandles as ref does not allow the unmanaged code
1540 * to change the SafeHandle value. If the value is changed,
1541 * we should issue a diagnostic exception (NotSupportedException)
1542 * that informs the user that changes to handles in unmanaged code
1545 * Since we currently have no access to the original
1546 * SafeHandle that was used during the marshalling,
1547 * for now we just ignore this, and ignore/discard any
1548 * changes that might have happened to the handle.
1553 case MONO_MARSHAL_CONV_HANDLEREF: {
1555 * Passing HandleRefs in a struct that is ref()ed does not
1556 * copy the values back to the HandleRef
1561 case MONO_MARSHAL_CONV_STR_BSTR:
1562 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1563 case MONO_MARSHAL_CONV_STR_TBSTR:
1564 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1566 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1568 mono_mb_emit_exception_marshal_directive (mb, msg);
1575 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1578 if (!ind_store_type)
1579 ind_store_type = &dummy;
1580 *ind_store_type = CEE_STIND_I;
1582 case MONO_MARSHAL_CONV_STR_LPWSTR:
1583 return mono_marshal_string_to_utf16;
1584 case MONO_MARSHAL_CONV_LPWSTR_STR:
1585 *ind_store_type = CEE_STIND_REF;
1586 return ves_icall_mono_string_from_utf16;
1587 case MONO_MARSHAL_CONV_LPTSTR_STR:
1588 *ind_store_type = CEE_STIND_REF;
1589 return mono_string_new_wrapper;
1590 case MONO_MARSHAL_CONV_LPSTR_STR:
1591 *ind_store_type = CEE_STIND_REF;
1592 return mono_string_new_wrapper;
1593 case MONO_MARSHAL_CONV_STR_LPTSTR:
1595 return mono_marshal_string_to_utf16;
1597 return mono_string_to_lpstr;
1599 case MONO_MARSHAL_CONV_STR_LPSTR:
1600 return mono_string_to_lpstr;
1601 case MONO_MARSHAL_CONV_STR_BSTR:
1602 return mono_string_to_bstr;
1603 case MONO_MARSHAL_CONV_BSTR_STR:
1604 *ind_store_type = CEE_STIND_REF;
1605 return mono_string_from_bstr_icall;
1606 case MONO_MARSHAL_CONV_STR_TBSTR:
1607 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1608 return mono_string_to_ansibstr;
1609 case MONO_MARSHAL_CONV_SB_LPSTR:
1610 return mono_string_builder_to_utf8;
1611 case MONO_MARSHAL_CONV_SB_LPTSTR:
1613 return mono_string_builder_to_utf16;
1615 return mono_string_builder_to_utf8;
1617 case MONO_MARSHAL_CONV_SB_LPWSTR:
1618 return mono_string_builder_to_utf16;
1619 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1620 return mono_array_to_savearray;
1621 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1622 return mono_array_to_lparray;
1623 case MONO_MARSHAL_FREE_LPARRAY:
1624 return mono_free_lparray;
1625 case MONO_MARSHAL_CONV_DEL_FTN:
1626 return mono_delegate_to_ftnptr;
1627 case MONO_MARSHAL_CONV_FTN_DEL:
1628 *ind_store_type = CEE_STIND_REF;
1629 return mono_ftnptr_to_delegate;
1630 case MONO_MARSHAL_CONV_LPSTR_SB:
1631 *ind_store_type = CEE_STIND_REF;
1632 return mono_string_utf8_to_builder;
1633 case MONO_MARSHAL_CONV_LPTSTR_SB:
1634 *ind_store_type = CEE_STIND_REF;
1636 return mono_string_utf16_to_builder;
1638 return mono_string_utf8_to_builder;
1640 case MONO_MARSHAL_CONV_LPWSTR_SB:
1641 *ind_store_type = CEE_STIND_REF;
1642 return mono_string_utf16_to_builder;
1643 case MONO_MARSHAL_FREE_ARRAY:
1644 return mono_marshal_free_array;
1645 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1646 return mono_string_to_byvalstr;
1647 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1648 return mono_string_to_byvalwstr;
1650 g_assert_not_reached ();
1657 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1663 case MONO_MARSHAL_CONV_BOOL_I4:
1664 mono_mb_emit_ldloc (mb, 1);
1665 mono_mb_emit_ldloc (mb, 0);
1666 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1667 mono_mb_emit_byte (mb, CEE_STIND_I4);
1669 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1670 mono_mb_emit_ldloc (mb, 1);
1671 mono_mb_emit_ldloc (mb, 0);
1672 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1673 mono_mb_emit_byte (mb, CEE_NEG);
1674 mono_mb_emit_byte (mb, CEE_STIND_I2);
1676 case MONO_MARSHAL_CONV_STR_LPWSTR:
1677 case MONO_MARSHAL_CONV_STR_LPSTR:
1678 case MONO_MARSHAL_CONV_STR_LPTSTR:
1679 case MONO_MARSHAL_CONV_STR_BSTR:
1680 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1681 case MONO_MARSHAL_CONV_STR_TBSTR: {
1684 /* free space if free == true */
1685 mono_mb_emit_ldloc (mb, 2);
1686 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1687 mono_mb_emit_ldloc (mb, 1);
1688 mono_mb_emit_byte (mb, CEE_LDIND_I);
1689 mono_mb_emit_icall (mb, g_free);
1690 mono_mb_patch_short_branch (mb, pos);
1692 mono_mb_emit_ldloc (mb, 1);
1693 mono_mb_emit_ldloc (mb, 0);
1694 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1695 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1696 mono_mb_emit_byte (mb, stind_op);
1699 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1700 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1701 case MONO_MARSHAL_CONV_DEL_FTN:
1702 mono_mb_emit_ldloc (mb, 1);
1703 mono_mb_emit_ldloc (mb, 0);
1704 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1705 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1706 mono_mb_emit_byte (mb, stind_op);
1708 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1709 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1712 mono_mb_emit_ldloc (mb, 1); /* dst */
1713 mono_mb_emit_ldloc (mb, 0);
1714 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1715 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1716 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1719 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1720 MonoClass *eklass = NULL;
1723 if (type->type == MONO_TYPE_SZARRAY) {
1724 eklass = type->data.klass;
1726 g_assert_not_reached ();
1729 if (eklass->valuetype)
1730 esize = mono_class_native_size (eklass, NULL);
1732 esize = sizeof (gpointer);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1736 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1738 if (eklass->blittable) {
1739 mono_mb_emit_ldloc (mb, 1);
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1743 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1744 mono_mb_emit_byte (mb, CEE_PREFIX1);
1745 mono_mb_emit_byte (mb, CEE_CPBLK);
1747 int array_var, src_var, dst_var, index_var;
1748 guint32 label2, label3;
1750 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1751 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1752 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1757 mono_mb_emit_stloc (mb, array_var);
1759 /* save the old src pointer */
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_stloc (mb, src_var);
1762 /* save the old dst pointer */
1763 mono_mb_emit_ldloc (mb, 1);
1764 mono_mb_emit_stloc (mb, dst_var);
1766 /* Emit marshalling loop */
1767 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1768 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1769 mono_mb_emit_stloc (mb, index_var);
1772 label2 = mono_mb_get_label (mb);
1773 mono_mb_emit_ldloc (mb, index_var);
1774 mono_mb_emit_ldloc (mb, array_var);
1775 mono_mb_emit_byte (mb, CEE_LDLEN);
1776 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1779 mono_mb_emit_ldloc (mb, array_var);
1780 mono_mb_emit_ldloc (mb, index_var);
1781 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1782 mono_mb_emit_stloc (mb, 0);
1784 /* dst is already set */
1786 /* Do the conversion */
1787 emit_struct_conv (mb, eklass, FALSE);
1790 mono_mb_emit_add_to_local (mb, index_var, 1);
1792 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1794 mono_mb_patch_branch (mb, label3);
1796 /* restore the old src pointer */
1797 mono_mb_emit_ldloc (mb, src_var);
1798 mono_mb_emit_stloc (mb, 0);
1799 /* restore the old dst pointer */
1800 mono_mb_emit_ldloc (mb, dst_var);
1801 mono_mb_emit_stloc (mb, 1);
1804 mono_mb_patch_branch (mb, pos);
1807 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1810 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1812 mono_mb_emit_ldloc (mb, 1);
1813 mono_mb_emit_ldloc (mb, 0);
1814 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1815 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1816 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1817 mono_mb_patch_short_branch (mb, pos);
1820 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1821 int src_var, dst_var;
1823 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1824 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1826 mono_mb_emit_ldloc (mb, 0);
1827 mono_mb_emit_byte (mb, CEE_LDIND_I);
1828 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1830 /* save the old src pointer */
1831 mono_mb_emit_ldloc (mb, 0);
1832 mono_mb_emit_stloc (mb, src_var);
1833 /* save the old dst pointer */
1834 mono_mb_emit_ldloc (mb, 1);
1835 mono_mb_emit_stloc (mb, dst_var);
1837 /* src = pointer to object data */
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, CEE_LDIND_I);
1840 mono_mb_emit_icon (mb, sizeof (MonoObject));
1841 mono_mb_emit_byte (mb, CEE_ADD);
1842 mono_mb_emit_stloc (mb, 0);
1844 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1846 /* restore the old src pointer */
1847 mono_mb_emit_ldloc (mb, src_var);
1848 mono_mb_emit_stloc (mb, 0);
1849 /* restore the old dst pointer */
1850 mono_mb_emit_ldloc (mb, dst_var);
1851 mono_mb_emit_stloc (mb, 1);
1853 mono_mb_patch_branch (mb, pos);
1858 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1859 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1860 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1861 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1863 #endif /* DISABLE_COM */
1865 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1868 mono_mb_emit_ldloc (mb, 0);
1869 mono_mb_emit_byte (mb, CEE_LDIND_I);
1870 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1871 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1872 mono_mb_patch_branch (mb, pos);
1874 /* Pull the handle field from SafeHandle */
1875 mono_mb_emit_ldloc (mb, 1);
1876 mono_mb_emit_ldloc (mb, 0);
1877 mono_mb_emit_byte (mb, CEE_LDIND_I);
1878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1879 mono_mb_emit_byte (mb, CEE_LDIND_I);
1880 mono_mb_emit_byte (mb, CEE_STIND_I);
1884 case MONO_MARSHAL_CONV_HANDLEREF: {
1885 mono_mb_emit_ldloc (mb, 1);
1886 mono_mb_emit_ldloc (mb, 0);
1887 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1888 mono_mb_emit_byte (mb, CEE_ADD);
1889 mono_mb_emit_byte (mb, CEE_LDIND_I);
1890 mono_mb_emit_byte (mb, CEE_STIND_I);
1895 g_error ("marshalling conversion %d not implemented", conv);
1901 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1902 MonoMarshalNative string_encoding)
1904 MonoMarshalType *info;
1908 emit_struct_conv(mb, klass->parent, to_object);
1910 info = mono_marshal_load_type_info (klass);
1912 if (info->native_size == 0)
1915 if (klass->blittable) {
1916 int msize = mono_class_value_size (klass, NULL);
1917 g_assert (msize == info->native_size);
1918 mono_mb_emit_ldloc (mb, 1);
1919 mono_mb_emit_ldloc (mb, 0);
1920 mono_mb_emit_icon (mb, msize);
1921 mono_mb_emit_byte (mb, CEE_PREFIX1);
1922 mono_mb_emit_byte (mb, CEE_CPBLK);
1924 mono_mb_emit_add_to_local (mb, 0, msize);
1925 mono_mb_emit_add_to_local (mb, 1, msize);
1929 if (klass != mono_class_try_get_safehandle_class ()) {
1930 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1931 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1932 mono_type_full_name (&klass->byval_arg));
1933 mono_mb_emit_exception_marshal_directive (mb, msg);
1938 for (i = 0; i < info->num_fields; i++) {
1939 MonoMarshalNative ntype;
1940 MonoMarshalConv conv;
1941 MonoType *ftype = info->fields [i].field->type;
1944 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1946 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1949 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1952 msize = klass->instance_size - info->fields [i].field->offset;
1953 usize = info->native_size - info->fields [i].offset;
1955 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1956 usize = info->fields [i + 1].offset - info->fields [i].offset;
1959 if (klass != mono_class_try_get_safehandle_class ()){
1961 * FIXME: Should really check for usize==0 and msize>0, but we apply
1962 * the layout to the managed structure as well.
1965 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1966 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1967 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1968 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1969 "reference field at the same offset as another field.",
1970 mono_type_full_name (&klass->byval_arg));
1975 case MONO_MARSHAL_CONV_NONE: {
1978 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1979 g_assert (!ftype->byref);
1980 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1981 mono_mb_emit_ldloc (mb, 1);
1982 mono_mb_emit_ldloc (mb, 0);
1983 mono_mb_emit_byte (mb, CEE_LDIND_I);
1984 mono_mb_emit_byte (mb, CEE_STIND_I);
1995 case MONO_TYPE_BOOLEAN:
1998 case MONO_TYPE_CHAR:
2004 mono_mb_emit_ldloc (mb, 1);
2005 mono_mb_emit_ldloc (mb, 0);
2006 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2008 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2009 mono_mb_emit_byte (mb, CEE_STIND_I2);
2011 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2012 mono_mb_emit_byte (mb, CEE_STIND_I1);
2015 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2016 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2019 case MONO_TYPE_VALUETYPE: {
2020 int src_var, dst_var;
2022 if (ftype->data.klass->enumtype) {
2023 ftype = mono_class_enum_basetype (ftype->data.klass);
2027 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2028 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2030 /* save the old src pointer */
2031 mono_mb_emit_ldloc (mb, 0);
2032 mono_mb_emit_stloc (mb, src_var);
2033 /* save the old dst pointer */
2034 mono_mb_emit_ldloc (mb, 1);
2035 mono_mb_emit_stloc (mb, dst_var);
2037 emit_struct_conv (mb, ftype->data.klass, to_object);
2039 /* restore the old src pointer */
2040 mono_mb_emit_ldloc (mb, src_var);
2041 mono_mb_emit_stloc (mb, 0);
2042 /* restore the old dst pointer */
2043 mono_mb_emit_ldloc (mb, dst_var);
2044 mono_mb_emit_stloc (mb, 1);
2047 case MONO_TYPE_OBJECT: {
2050 static MonoMethod *variant_clear = NULL;
2051 static MonoMethod *get_object_for_native_variant = NULL;
2054 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2055 if (!get_object_for_native_variant)
2056 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2057 mono_mb_emit_ldloc (mb, 1);
2058 mono_mb_emit_ldloc (mb, 0);
2059 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2060 mono_mb_emit_byte (mb, CEE_STIND_REF);
2062 mono_mb_emit_ldloc (mb, 0);
2063 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2066 static MonoMethod *get_native_variant_for_object = NULL;
2068 if (!get_native_variant_for_object)
2069 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2071 mono_mb_emit_ldloc (mb, 0);
2072 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2073 mono_mb_emit_ldloc (mb, 1);
2074 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2077 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2078 mono_mb_emit_exception_marshal_directive (mb, msg);
2084 g_warning ("marshaling type %02x not implemented", ftype->type);
2085 g_assert_not_reached ();
2090 int src_var, dst_var;
2092 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2093 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2095 /* save the old src pointer */
2096 mono_mb_emit_ldloc (mb, 0);
2097 mono_mb_emit_stloc (mb, src_var);
2098 /* save the old dst pointer */
2099 mono_mb_emit_ldloc (mb, 1);
2100 mono_mb_emit_stloc (mb, dst_var);
2103 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2105 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2107 /* restore the old src pointer */
2108 mono_mb_emit_ldloc (mb, src_var);
2109 mono_mb_emit_stloc (mb, 0);
2110 /* restore the old dst pointer */
2111 mono_mb_emit_ldloc (mb, dst_var);
2112 mono_mb_emit_stloc (mb, 1);
2117 mono_mb_emit_add_to_local (mb, 0, usize);
2118 mono_mb_emit_add_to_local (mb, 1, msize);
2120 mono_mb_emit_add_to_local (mb, 0, msize);
2121 mono_mb_emit_add_to_local (mb, 1, usize);
2127 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2129 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2133 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2135 /* Call DestroyStructure */
2136 /* FIXME: Only do this if needed */
2137 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2138 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2139 mono_mb_emit_ldloc (mb, struct_var);
2140 mono_mb_emit_icall (mb, mono_struct_delete_old);
2144 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2146 int pos_noabort, pos_noex;
2148 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2149 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2150 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2151 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2153 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2154 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2156 mono_mb_emit_icall (mb, checkpoint_func);
2157 /* Throw the exception returned by the checkpoint function, if any */
2158 mono_mb_emit_byte (mb, CEE_DUP);
2159 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2160 mono_mb_emit_byte (mb, CEE_THROW);
2161 mono_mb_patch_branch (mb, pos_noex);
2162 mono_mb_emit_byte (mb, CEE_POP);
2164 mono_mb_patch_branch (mb, pos_noabort);
2168 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2170 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2173 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2177 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2179 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2183 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2185 emit_thread_interrupt_checkpoint (mb);
2189 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2191 emit_thread_force_interrupt_checkpoint (mb);
2194 #endif /* DISABLE_JIT */
2196 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2197 static MonoAsyncResult *
2198 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2201 MonoMulticastDelegate *mcast_delegate;
2205 g_assert (delegate);
2206 mcast_delegate = (MonoMulticastDelegate *) delegate;
2207 if (mcast_delegate->delegates != NULL) {
2208 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2212 #ifndef DISABLE_REMOTING
2213 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2214 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2215 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2216 /* If the target is a proxy, make a direct call. Is proxy's work
2217 // to make the call asynchronous.
2219 MonoMethodMessage *msg;
2220 MonoDelegate *async_callback;
2222 MonoAsyncResult *ares;
2224 MonoArray *out_args;
2225 method = delegate->method;
2227 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2228 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2229 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2230 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2231 MONO_OBJECT_SETREF (msg, async_result, ares);
2232 msg->call_type = CallType_BeginInvoke;
2235 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2236 if (!mono_error_ok (&error)) {
2237 mono_error_set_pending_exception (&error);
2241 mono_set_pending_exception ((MonoException *) exc);
2247 klass = delegate->object.vtable->klass;
2249 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2251 method = mono_get_delegate_invoke (klass);
2254 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2255 mono_error_set_pending_exception (&error);
2262 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2264 int i, params_var, tmp_var;
2266 /* allocate local (pointer) *params[] */
2267 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2268 /* allocate local (pointer) tmp */
2269 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2271 /* alloate space on stack to store an array of pointers to the arguments */
2272 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2273 mono_mb_emit_byte (mb, CEE_PREFIX1);
2274 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2275 mono_mb_emit_stloc (mb, params_var);
2278 mono_mb_emit_ldloc (mb, params_var);
2279 mono_mb_emit_stloc (mb, tmp_var);
2281 if (save_this && sig->hasthis) {
2282 mono_mb_emit_ldloc (mb, tmp_var);
2283 mono_mb_emit_ldarg_addr (mb, 0);
2284 mono_mb_emit_byte (mb, CEE_STIND_I);
2285 /* tmp = tmp + sizeof (gpointer) */
2286 if (sig->param_count)
2287 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2291 for (i = 0; i < sig->param_count; i++) {
2292 mono_mb_emit_ldloc (mb, tmp_var);
2293 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2294 mono_mb_emit_byte (mb, CEE_STIND_I);
2295 /* tmp = tmp + sizeof (gpointer) */
2296 if (i < (sig->param_count - 1))
2297 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2303 #endif /* DISABLE_JIT */
2306 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2310 GString *res = g_string_new ("");
2313 g_string_append (res, prefix);
2314 g_string_append_c (res, '_');
2317 mono_type_get_desc (res, sig->ret, FALSE);
2320 g_string_append (res, "__this__");
2322 for (i = 0; i < sig->param_count; ++i) {
2323 g_string_append_c (res, '_');
2324 mono_type_get_desc (res, sig->params [i], FALSE);
2327 g_string_free (res, FALSE);
2332 * mono_marshal_get_string_encoding:
2334 * Return the string encoding which should be used for a given parameter.
2336 static MonoMarshalNative
2337 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2339 /* First try the parameter marshal info */
2341 if (spec->native == MONO_NATIVE_LPARRAY) {
2342 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2343 return spec->data.array_data.elem_type;
2346 return spec->native;
2350 return MONO_NATIVE_LPSTR;
2352 /* Then try the method level marshal info */
2353 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2354 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2355 return MONO_NATIVE_LPSTR;
2356 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2357 return MONO_NATIVE_LPWSTR;
2358 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2360 return MONO_NATIVE_LPWSTR;
2362 return MONO_NATIVE_LPSTR;
2365 return MONO_NATIVE_LPSTR;
2369 static MonoMarshalConv
2370 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2372 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2375 case MONO_NATIVE_LPWSTR:
2376 return MONO_MARSHAL_CONV_STR_LPWSTR;
2377 case MONO_NATIVE_LPSTR:
2378 case MONO_NATIVE_VBBYREFSTR:
2379 return MONO_MARSHAL_CONV_STR_LPSTR;
2380 case MONO_NATIVE_LPTSTR:
2381 return MONO_MARSHAL_CONV_STR_LPTSTR;
2382 case MONO_NATIVE_BSTR:
2383 return MONO_MARSHAL_CONV_STR_BSTR;
2385 return MONO_MARSHAL_CONV_INVALID;
2389 static MonoMarshalConv
2390 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2392 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2395 case MONO_NATIVE_LPWSTR:
2396 return MONO_MARSHAL_CONV_SB_LPWSTR;
2398 case MONO_NATIVE_LPSTR:
2399 return MONO_MARSHAL_CONV_SB_LPSTR;
2401 case MONO_NATIVE_LPTSTR:
2402 return MONO_MARSHAL_CONV_SB_LPTSTR;
2405 return MONO_MARSHAL_CONV_INVALID;
2409 static MonoMarshalConv
2410 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2412 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2417 case MONO_NATIVE_LPWSTR:
2419 return MONO_MARSHAL_CONV_LPWSTR_STR;
2420 case MONO_NATIVE_LPSTR:
2421 case MONO_NATIVE_VBBYREFSTR:
2422 return MONO_MARSHAL_CONV_LPSTR_STR;
2423 case MONO_NATIVE_LPTSTR:
2424 return MONO_MARSHAL_CONV_LPTSTR_STR;
2425 case MONO_NATIVE_BSTR:
2426 return MONO_MARSHAL_CONV_BSTR_STR;
2428 return MONO_MARSHAL_CONV_INVALID;
2432 static MonoMarshalConv
2433 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2435 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2440 case MONO_NATIVE_LPWSTR:
2442 * mono_string_builder_to_utf16 does not allocate a
2443 * new buffer, so no need to free it.
2446 return MONO_MARSHAL_CONV_LPWSTR_SB;
2447 case MONO_NATIVE_LPSTR:
2448 return MONO_MARSHAL_CONV_LPSTR_SB;
2450 case MONO_NATIVE_LPTSTR:
2451 return MONO_MARSHAL_CONV_LPTSTR_SB;
2454 return MONO_MARSHAL_CONV_INVALID;
2459 * Return whenever a field of a native structure or an array member needs to
2463 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2465 MonoMarshalNative encoding;
2468 case MONO_TYPE_VALUETYPE:
2469 /* FIXME: Optimize this */
2471 case MONO_TYPE_OBJECT:
2472 case MONO_TYPE_CLASS:
2473 if (t->data.klass == mono_defaults.stringbuilder_class) {
2475 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2479 case MONO_TYPE_STRING:
2480 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2481 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2488 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2491 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2494 mono_marshal_lock ();
2497 g_hash_table_new (hash_func, equal_func);
2498 mono_memory_barrier ();
2501 mono_marshal_unlock ();
2507 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2509 return get_cache (var, hash_func, equal_func);
2513 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2517 mono_marshal_lock ();
2518 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2519 mono_marshal_unlock ();
2526 * Create a MonoMethod from MB, set INFO as wrapper info.
2529 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2530 int max_stack, WrapperInfo *info)
2534 res = mono_mb_create_method (mb, sig, max_stack);
2536 mono_marshal_set_wrapper_info (res, info);
2540 /* Create the method from the builder and place it in the cache */
2542 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2543 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2544 int max_stack, WrapperInfo *info, gboolean *out_found)
2551 mono_marshal_lock ();
2552 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2553 mono_marshal_unlock ();
2556 newm = mono_mb_create_method (mb, sig, max_stack);
2557 mono_marshal_lock ();
2558 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2561 g_hash_table_insert (cache, key, res);
2562 mono_marshal_set_wrapper_info (res, info);
2563 mono_marshal_unlock ();
2567 mono_marshal_unlock ();
2568 mono_free_method (newm);
2576 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2577 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2580 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2584 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2587 int wrapper_type = wrapper->wrapper_type;
2590 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2593 info = mono_marshal_get_wrapper_info (wrapper);
2595 switch (wrapper_type) {
2596 case MONO_WRAPPER_REMOTING_INVOKE:
2597 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2598 case MONO_WRAPPER_XDOMAIN_INVOKE:
2599 m = info->d.remoting.method;
2600 if (wrapper->is_inflated) {
2604 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2605 * contains an uninflated method.
2607 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2608 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2612 case MONO_WRAPPER_SYNCHRONIZED:
2613 m = info->d.synchronized.method;
2614 if (wrapper->is_inflated) {
2617 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2618 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2622 case MONO_WRAPPER_UNBOX:
2623 return info->d.unbox.method;
2624 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2625 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2626 return info->d.managed_to_native.method;
2629 case MONO_WRAPPER_RUNTIME_INVOKE:
2630 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2631 return info->d.runtime_invoke.method;
2640 * mono_marshal_get_wrapper_info:
2642 * Retrieve the WrapperInfo structure associated with WRAPPER.
2645 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2647 g_assert (wrapper->wrapper_type);
2649 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2653 * mono_marshal_set_wrapper_info:
2655 * Set the WrapperInfo structure associated with the wrapper
2656 * method METHOD to INFO.
2659 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2663 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2666 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2671 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2675 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2676 info->subtype = subtype;
2681 * get_wrapper_target_class:
2683 * Return the class where a wrapper method should be placed.
2686 get_wrapper_target_class (MonoImage *image)
2693 * - can't put all wrappers into an mscorlib class, because they reference
2694 * metadata (signature) so they should be put into the same image as the
2695 * method they wrap, so they are unloaded together.
2696 * - putting them into a class with a type initalizer could cause the
2697 * initializer to be executed which can be a problem if the wrappers are
2699 * - putting them into an inflated class can cause problems if the the
2700 * class is deleted because it references an image which is unloaded.
2701 * To avoid these problems, we put the wrappers into the <Module> class of
2704 if (image_is_dynamic (image)) {
2705 klass = ((MonoDynamicImage*)image)->wrappers_type;
2707 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2708 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2716 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2717 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2721 * check_generic_wrapper_cache:
2723 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2724 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2725 * generic method definition.
2728 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2731 MonoMethod *inst, *def;
2732 MonoGenericContext *ctx;
2734 g_assert (orig_method->is_inflated);
2735 ctx = mono_method_get_context (orig_method);
2738 * Look for the instance
2740 res = mono_marshal_find_in_cache (cache, key);
2745 * Look for the definition
2747 def = mono_marshal_find_in_cache (cache, def_key);
2750 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2751 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2753 mono_memory_barrier ();
2754 mono_marshal_lock ();
2755 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2757 g_hash_table_insert (cache, key, inst);
2760 mono_marshal_unlock ();
2767 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2770 MonoMethod *inst, *res;
2773 * We use the same cache for the generic definition and the instances.
2775 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2776 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2777 mono_memory_barrier ();
2778 mono_marshal_lock ();
2779 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2781 g_hash_table_insert (cache, key, inst);
2784 mono_marshal_unlock ();
2789 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2793 MonoMethod *inst, *def;
2796 * Look for the instance
2798 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2803 * Look for the definition
2805 def = mono_marshal_find_in_cache (cache, def_method->klass);
2807 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2808 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2811 mono_memory_barrier ();
2812 mono_marshal_lock ();
2813 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2815 g_hash_table_insert (cache, orig_method->klass, inst);
2818 mono_marshal_unlock ();
2825 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2828 MonoMethod *inst, *res;
2831 * We use the same cache for the generic definition and the instances.
2833 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2834 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2836 mono_memory_barrier ();
2837 mono_marshal_lock ();
2838 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2840 g_hash_table_insert (cache, orig_method->klass, inst);
2843 mono_marshal_unlock ();
2848 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2850 MonoMethodSignature *sig;
2851 MonoMethodBuilder *mb;
2856 MonoGenericContext *ctx = NULL;
2857 MonoMethod *orig_method = NULL;
2859 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2860 !strcmp (method->name, "BeginInvoke"));
2863 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2865 if (method->is_inflated) {
2866 orig_method = method;
2867 ctx = &((MonoMethodInflated*)method)->context;
2868 method = ((MonoMethodInflated*)method)->declaring;
2871 sig = mono_signature_no_pinvoke (method);
2877 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2878 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2882 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2883 (GHashFunc)mono_signature_hash,
2884 (GCompareFunc)mono_metadata_signature_equal);
2885 if ((res = mono_marshal_find_in_cache (cache, sig)))
2889 g_assert (sig->hasthis);
2891 name = mono_signature_to_name (sig, "begin_invoke");
2893 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2895 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2899 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2901 mono_mb_emit_ldarg (mb, 0);
2902 mono_mb_emit_ldloc (mb, params_var);
2903 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2904 mono_mb_emit_byte (mb, CEE_RET);
2909 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2910 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2912 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2919 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2921 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2924 MonoDomain *domain = mono_domain_get ();
2925 MonoAsyncResult *ares;
2926 MonoMethod *method = NULL;
2927 MonoMethodSignature *sig;
2928 MonoMethodMessage *msg;
2929 MonoObject *res, *exc;
2930 MonoArray *out_args;
2933 g_assert (delegate);
2935 if (!delegate->method_info) {
2936 g_assert (delegate->method);
2937 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2938 if (!mono_error_ok (&error)) {
2939 mono_error_set_pending_exception (&error);
2942 MONO_OBJECT_SETREF (delegate, method_info, rm);
2945 if (!delegate->method_info || !delegate->method_info->method)
2946 g_assert_not_reached ();
2948 klass = delegate->object.vtable->klass;
2950 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2951 g_assert (method != NULL);
2953 sig = mono_signature_no_pinvoke (method);
2955 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2957 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2959 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."));
2963 if (ares->async_delegate != (MonoObject*)delegate) {
2964 mono_set_pending_exception (mono_get_exception_invalid_operation (
2965 "The IAsyncResult object provided does not match this delegate."));
2969 #ifndef DISABLE_REMOTING
2970 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2971 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2972 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2973 if (!mono_error_ok (&error)) {
2974 mono_error_set_pending_exception (&error);
2977 mono_message_init (domain, msg, delegate->method_info, NULL);
2978 msg->call_type = CallType_EndInvoke;
2979 MONO_OBJECT_SETREF (msg, async_result, ares);
2980 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2981 if (!mono_error_ok (&error)) {
2982 mono_error_set_pending_exception (&error);
2988 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2992 if (((MonoException*)exc)->stack_trace) {
2993 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2995 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2997 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3000 mono_set_pending_exception ((MonoException*)exc);
3003 mono_method_return_message_restore (method, params, out_args, &error);
3004 mono_error_set_pending_exception (&error);
3011 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3013 MonoType *t = mono_type_get_underlying_type (return_type);
3015 if (return_type->byref)
3016 return_type = &mono_defaults.int_class->byval_arg;
3019 case MONO_TYPE_VOID:
3020 g_assert_not_reached ();
3023 case MONO_TYPE_STRING:
3024 case MONO_TYPE_CLASS:
3025 case MONO_TYPE_OBJECT:
3026 case MONO_TYPE_ARRAY:
3027 case MONO_TYPE_SZARRAY:
3031 case MONO_TYPE_BOOLEAN:
3034 case MONO_TYPE_CHAR:
3044 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3045 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3047 case MONO_TYPE_GENERICINST:
3048 if (!mono_type_generic_inst_is_valuetype (t))
3051 case MONO_TYPE_VALUETYPE: {
3052 MonoClass *klass = mono_class_from_mono_type (return_type);
3053 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3054 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3058 case MONO_TYPE_MVAR: {
3059 MonoClass *klass = mono_class_from_mono_type (return_type);
3060 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3064 g_warning ("type 0x%x not handled", return_type->type);
3065 g_assert_not_reached ();
3068 mono_mb_emit_byte (mb, CEE_RET);
3071 #endif /* DISABLE_JIT */
3074 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3076 MonoMethodSignature *sig;
3077 MonoMethodBuilder *mb;
3082 MonoGenericContext *ctx = NULL;
3083 MonoMethod *orig_method = NULL;
3085 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3086 !strcmp (method->name, "EndInvoke"));
3089 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3091 if (method->is_inflated) {
3092 orig_method = method;
3093 ctx = &((MonoMethodInflated*)method)->context;
3094 method = ((MonoMethodInflated*)method)->declaring;
3097 sig = mono_signature_no_pinvoke (method);
3103 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3104 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3108 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3109 (GHashFunc)mono_signature_hash,
3110 (GCompareFunc)mono_metadata_signature_equal);
3111 if ((res = mono_marshal_find_in_cache (cache, sig)))
3115 g_assert (sig->hasthis);
3117 name = mono_signature_to_name (sig, "end_invoke");
3119 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3121 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3125 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3127 mono_mb_emit_ldarg (mb, 0);
3128 mono_mb_emit_ldloc (mb, params_var);
3129 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3131 if (sig->ret->type == MONO_TYPE_VOID) {
3132 mono_mb_emit_byte (mb, CEE_POP);
3133 mono_mb_emit_byte (mb, CEE_RET);
3135 mono_mb_emit_restore_result (mb, sig->ret);
3140 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3141 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3143 res = mono_mb_create_and_cache (cache, sig,
3144 mb, sig, sig->param_count + 16);
3153 MonoMethodSignature *sig;
3155 } SignaturePointerPair;
3158 signature_pointer_pair_hash (gconstpointer data)
3160 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3162 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3166 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3168 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3169 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3173 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3175 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3177 return pair->pointer == user_data;
3181 free_signature_pointer_pair (SignaturePointerPair *pair)
3187 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3189 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3191 MonoMethodBuilder *mb;
3194 gpointer cache_key = NULL;
3195 SignaturePointerPair key;
3196 SignaturePointerPair *new_key;
3197 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3198 int pos0, pos1, pos2;
3200 MonoClass *target_class = NULL;
3201 gboolean closed_over_null = FALSE;
3202 MonoGenericContext *ctx = NULL;
3203 MonoGenericContainer *container = NULL;
3204 MonoMethod *orig_method = NULL;
3206 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3210 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3211 !strcmp (method->name, "Invoke"));
3213 invoke_sig = sig = mono_signature_no_pinvoke (method);
3216 * If the delegate target is null, and the target method is not static, a virtual
3217 * call is made to that method with the first delegate argument as this. This is
3218 * a non-documented .NET feature.
3221 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3222 if (target_method->is_inflated) {
3224 MonoType *target_type;
3226 g_assert (method->signature->hasthis);
3227 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3228 mono_method_get_context (method), &error);
3229 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3230 target_class = mono_class_from_mono_type (target_type);
3232 target_class = target_method->klass;
3235 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3238 if (static_method_with_first_arg_bound) {
3239 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3240 g_assert (!callvirt);
3241 invoke_sig = mono_method_signature (target_method);
3245 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3247 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3248 orig_method = method;
3249 ctx = &((MonoMethodInflated*)method)->context;
3250 method = ((MonoMethodInflated*)method)->declaring;
3252 container = mono_method_get_generic_container (method);
3254 container = method->klass->generic_container;
3255 g_assert (container);
3257 invoke_sig = sig = mono_signature_no_pinvoke (method);
3264 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3265 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3268 cache_key = method->klass;
3269 } else if (static_method_with_first_arg_bound) {
3270 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3271 (GHashFunc)mono_signature_hash,
3272 (GCompareFunc)mono_metadata_signature_equal);
3274 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3276 res = mono_marshal_find_in_cache (cache, invoke_sig);
3279 cache_key = invoke_sig;
3280 } else if (callvirt) {
3281 GHashTable **cache_ptr;
3283 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3285 /* We need to cache the signature+method pair */
3286 mono_marshal_lock ();
3288 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3290 key.sig = invoke_sig;
3291 key.pointer = target_method;
3292 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3293 mono_marshal_unlock ();
3297 // Inflated methods should not be in this cache because it's not stored on the imageset.
3298 g_assert (!method->is_inflated);
3299 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3300 (GHashFunc)mono_signature_hash,
3301 (GCompareFunc)mono_metadata_signature_equal);
3302 res = mono_marshal_find_in_cache (cache, sig);
3308 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3309 static_sig->hasthis = 0;
3310 if (!static_method_with_first_arg_bound)
3311 invoke_sig = static_sig;
3313 if (static_method_with_first_arg_bound)
3314 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3315 else if (closed_over_null)
3316 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3318 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3320 name = mono_signature_to_name (invoke_sig, "invoke");
3322 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3324 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3328 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3330 /* allocate local 0 (object) */
3331 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3332 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3333 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3334 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3335 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3338 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3340 g_assert (sig->hasthis);
3343 * {type: sig->ret} res;
3344 * if (delegates == null) {
3345 * return this.<target> ( args .. );
3347 * int i = 0, len = this.delegates.Length;
3349 * res = this.delegates [i].Invoke ( args .. );
3350 * } while (++i < len);
3355 /* this wrapper can be used in unmanaged-managed transitions */
3356 emit_thread_interrupt_checkpoint (mb);
3358 /* delegates = this.delegates */
3359 mono_mb_emit_ldarg (mb, 0);
3360 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3361 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3362 mono_mb_emit_stloc (mb, local_delegates);
3365 /* if (delegates == null) */
3366 mono_mb_emit_ldloc (mb, local_delegates);
3367 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3369 /* return target.<target_method|method_ptr> ( args .. ); */
3371 /* target = d.target; */
3372 mono_mb_emit_ldarg (mb, 0);
3373 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3374 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3375 mono_mb_emit_stloc (mb, local_target);
3377 /*static methods with bound first arg can have null target and still be bound*/
3378 if (!static_method_with_first_arg_bound) {
3379 /* if target != null */
3380 mono_mb_emit_ldloc (mb, local_target);
3381 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3383 /* then call this->method_ptr nonstatic */
3386 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3388 mono_mb_emit_ldloc (mb, local_target);
3389 for (i = 0; i < sig->param_count; ++i)
3390 mono_mb_emit_ldarg (mb, i + 1);
3391 mono_mb_emit_ldarg (mb, 0);
3392 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3393 mono_mb_emit_byte (mb, CEE_LDIND_I);
3394 mono_mb_emit_ldarg (mb, 0);
3395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3396 mono_mb_emit_byte (mb, CEE_LDIND_I);
3397 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3398 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3399 mono_mb_emit_byte (mb, CEE_RET);
3402 /* else [target == null] call this->method_ptr static */
3403 mono_mb_patch_branch (mb, pos0);
3407 if (!closed_over_null) {
3408 if (target_class->valuetype) {
3409 mono_mb_emit_ldarg (mb, 1);
3410 for (i = 1; i < sig->param_count; ++i)
3411 mono_mb_emit_ldarg (mb, i + 1);
3412 mono_mb_emit_op (mb, CEE_CALL, target_method);
3414 mono_mb_emit_ldarg (mb, 1);
3415 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3416 for (i = 1; i < sig->param_count; ++i)
3417 mono_mb_emit_ldarg (mb, i + 1);
3418 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3421 mono_mb_emit_byte (mb, CEE_LDNULL);
3422 for (i = 0; i < sig->param_count; ++i)
3423 mono_mb_emit_ldarg (mb, i + 1);
3424 mono_mb_emit_op (mb, CEE_CALL, target_method);
3427 if (static_method_with_first_arg_bound) {
3428 mono_mb_emit_ldloc (mb, local_target);
3429 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3430 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3432 for (i = 0; i < sig->param_count; ++i)
3433 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_ldarg (mb, 0);
3435 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3436 mono_mb_emit_byte (mb, CEE_LDIND_I);
3437 mono_mb_emit_ldarg (mb, 0);
3438 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3439 mono_mb_emit_byte (mb, CEE_LDIND_I);
3440 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3441 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3444 mono_mb_emit_byte (mb, CEE_RET);
3446 /* else [delegates != null] */
3447 mono_mb_patch_branch (mb, pos2);
3449 /* len = delegates.Length; */
3450 mono_mb_emit_ldloc (mb, local_delegates);
3451 mono_mb_emit_byte (mb, CEE_LDLEN);
3452 mono_mb_emit_byte (mb, CEE_CONV_I4);
3453 mono_mb_emit_stloc (mb, local_len);
3456 mono_mb_emit_icon (mb, 0);
3457 mono_mb_emit_stloc (mb, local_i);
3459 pos1 = mono_mb_get_label (mb);
3461 /* d = delegates [i]; */
3462 mono_mb_emit_ldloc (mb, local_delegates);
3463 mono_mb_emit_ldloc (mb, local_i);
3464 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3465 mono_mb_emit_stloc (mb, local_d);
3467 /* res = d.Invoke ( args .. ); */
3468 mono_mb_emit_ldloc (mb, local_d);
3469 for (i = 0; i < sig->param_count; i++)
3470 mono_mb_emit_ldarg (mb, i + 1);
3472 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3475 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3476 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3479 mono_mb_emit_stloc (mb, local_res);
3482 mono_mb_emit_add_to_local (mb, local_i, 1);
3485 mono_mb_emit_ldloc (mb, local_i);
3486 mono_mb_emit_ldloc (mb, local_len);
3487 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3491 mono_mb_emit_ldloc (mb, local_res);
3492 mono_mb_emit_byte (mb, CEE_RET);
3494 mb->skip_visibility = 1;
3495 #endif /* DISABLE_JIT */
3497 info = mono_wrapper_info_create (mb, subtype);
3502 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3503 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3504 } else if (callvirt) {
3505 new_key = g_new0 (SignaturePointerPair, 1);
3508 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3512 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3516 /* mono_method_print_code (res); */
3522 * the returned method invokes all methods in a multicast delegate.
3525 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3527 gboolean callvirt = FALSE;
3528 gboolean static_method_with_first_arg_bound = FALSE;
3529 MonoMethod *target_method = NULL;
3530 MonoMethodSignature *sig;
3532 sig = mono_signature_no_pinvoke (method);
3534 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3536 target_method = del->method;
3539 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3540 static_method_with_first_arg_bound = TRUE;
3541 target_method = del->method;
3544 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3548 MonoMethodSignature *ctor_sig;
3549 MonoMethodSignature *sig;
3552 /* protected by the marshal lock, contains CtorSigPair pointers */
3553 static GSList *strsig_list = NULL;
3555 static MonoMethodSignature *
3556 lookup_string_ctor_signature (MonoMethodSignature *sig)
3558 MonoMethodSignature *callsig;
3562 mono_marshal_lock ();
3564 for (item = strsig_list; item; item = item->next) {
3565 cs = (CtorSigPair *)item->data;
3566 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3567 * because it is lock-free.
3569 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3574 mono_marshal_unlock ();
3578 static MonoMethodSignature *
3579 add_string_ctor_signature (MonoMethod *method)
3581 MonoMethodSignature *callsig;
3584 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3585 callsig->ret = &mono_defaults.string_class->byval_arg;
3586 cs = g_new (CtorSigPair, 1);
3588 cs->ctor_sig = mono_method_signature (method);
3590 mono_marshal_lock ();
3591 strsig_list = g_slist_prepend (strsig_list, cs);
3592 mono_marshal_unlock ();
3597 * mono_marshal_get_string_ctor_signature:
3599 * Return the modified signature used by string ctors (they return the newly created
3602 MonoMethodSignature*
3603 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3605 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3607 sig = add_string_ctor_signature (method);
3613 get_runtime_invoke_type (MonoType *t, gboolean ret)
3616 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3618 /* Can't share this with 'I' as that needs another indirection */
3619 return &mono_defaults.int_class->this_arg;
3622 if (MONO_TYPE_IS_REFERENCE (t))
3623 return &mono_defaults.object_class->byval_arg;
3626 /* The result needs to be boxed */
3631 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3634 return &mono_defaults.sbyte_class->byval_arg;
3636 return &mono_defaults.int16_class->byval_arg;
3638 return &mono_defaults.int32_class->byval_arg;
3641 return &mono_defaults.int64_class->byval_arg;
3642 case MONO_TYPE_BOOLEAN:
3643 return &mono_defaults.byte_class->byval_arg;
3644 case MONO_TYPE_CHAR:
3645 return &mono_defaults.uint16_class->byval_arg;
3647 return &mono_defaults.int_class->byval_arg;
3648 case MONO_TYPE_VALUETYPE:
3649 if (t->data.klass->enumtype) {
3650 t = mono_class_enum_basetype (t->data.klass);
3660 * mono_marshal_get_runtime_invoke_sig:
3662 * Return a common signature used for sharing runtime invoke wrappers.
3664 static MonoMethodSignature*
3665 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3667 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3670 res->generic_param_count = 0;
3671 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3672 for (i = 0; i < res->param_count; ++i)
3673 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3679 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3681 /* Can't share wrappers which return a vtype since it needs to be boxed */
3682 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))
3685 return mono_metadata_signature_equal (sig1, sig2);
3693 * Emit the call to the wrapper method from a runtime invoke wrapper.
3696 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3697 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3699 gboolean virtual_, gboolean need_direct_wrapper)
3701 static MonoString *string_dummy = NULL;
3703 int *tmp_nullable_locals;
3704 gboolean void_ret = FALSE;
3705 gboolean string_ctor = method && method->string_ctor;
3707 /* to make it work with our special string constructors */
3708 if (!string_dummy) {
3709 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3710 string_dummy = mono_string_new_wrapper ("dummy");
3714 g_assert (sig->hasthis);
3715 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3720 if (mono_gc_is_moving ()) {
3721 mono_mb_emit_ptr (mb, &string_dummy);
3722 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3724 mono_mb_emit_ptr (mb, string_dummy);
3727 mono_mb_emit_ldarg (mb, 0);
3731 tmp_nullable_locals = g_new0 (int, sig->param_count);
3733 for (i = 0; i < sig->param_count; i++) {
3734 MonoType *t = sig->params [i];
3737 mono_mb_emit_ldarg (mb, 1);
3739 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3740 mono_mb_emit_byte (mb, CEE_ADD);
3744 mono_mb_emit_byte (mb, CEE_LDIND_I);
3745 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3746 * So to make this work we unbox it to a local variablee and push a reference to that.
3748 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3749 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3751 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3752 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3753 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3758 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3759 type = sig->params [i]->type;
3763 case MONO_TYPE_BOOLEAN:
3767 case MONO_TYPE_CHAR:
3776 mono_mb_emit_byte (mb, CEE_LDIND_I);
3777 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3779 case MONO_TYPE_STRING:
3780 case MONO_TYPE_CLASS:
3781 case MONO_TYPE_ARRAY:
3783 case MONO_TYPE_SZARRAY:
3784 case MONO_TYPE_OBJECT:
3785 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3787 case MONO_TYPE_GENERICINST:
3788 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3789 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3794 case MONO_TYPE_VALUETYPE:
3795 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3796 type = mono_class_enum_basetype (t->data.klass)->type;
3799 mono_mb_emit_byte (mb, CEE_LDIND_I);
3800 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3801 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3802 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3803 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3805 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3809 g_assert_not_reached ();
3814 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3815 } else if (need_direct_wrapper) {
3816 mono_mb_emit_op (mb, CEE_CALL, method);
3818 mono_mb_emit_ldarg (mb, 3);
3819 mono_mb_emit_calli (mb, callsig);
3822 if (sig->ret->byref) {
3824 g_assert_not_reached ();
3827 switch (sig->ret->type) {
3828 case MONO_TYPE_VOID:
3832 case MONO_TYPE_BOOLEAN:
3833 case MONO_TYPE_CHAR:
3846 case MONO_TYPE_VALUETYPE:
3847 case MONO_TYPE_TYPEDBYREF:
3848 case MONO_TYPE_GENERICINST:
3849 /* box value types */
3850 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3852 case MONO_TYPE_STRING:
3853 case MONO_TYPE_CLASS:
3854 case MONO_TYPE_ARRAY:
3855 case MONO_TYPE_SZARRAY:
3856 case MONO_TYPE_OBJECT:
3860 /* The result is an IntPtr */
3861 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3864 g_assert_not_reached ();
3868 mono_mb_emit_stloc (mb, loc_res);
3870 /* Convert back nullable-byref arguments */
3871 for (i = 0; i < sig->param_count; i++) {
3872 MonoType *t = sig->params [i];
3875 * Box the result and put it back into the array, the caller will have
3876 * to obtain it from there.
3878 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3879 mono_mb_emit_ldarg (mb, 1);
3880 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3881 mono_mb_emit_byte (mb, CEE_ADD);
3883 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3884 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3886 mono_mb_emit_byte (mb, CEE_STIND_REF);
3890 g_free (tmp_nullable_locals);
3894 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3895 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3896 gboolean virtual_, gboolean need_direct_wrapper)
3899 MonoExceptionClause *clause;
3900 int loc_res, loc_exc;
3902 /* The wrapper looks like this:
3908 * } catch (Exception e) {
3916 /* allocate local 0 (object) tmp */
3917 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3918 /* allocate local 1 (object) exc */
3919 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3921 /* *exc is assumed to be initialized to NULL by the caller */
3923 mono_mb_emit_byte (mb, CEE_LDARG_2);
3924 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3929 labels [1] = mono_mb_get_label (mb);
3930 emit_thread_force_interrupt_checkpoint (mb);
3931 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3933 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3935 /* Add a try clause around the call */
3936 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3937 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3938 clause->data.catch_class = mono_defaults.exception_class;
3939 clause->try_offset = labels [1];
3940 clause->try_len = mono_mb_get_label (mb) - labels [1];
3942 clause->handler_offset = mono_mb_get_label (mb);
3945 mono_mb_emit_stloc (mb, loc_exc);
3946 mono_mb_emit_byte (mb, CEE_LDARG_2);
3947 mono_mb_emit_ldloc (mb, loc_exc);
3948 mono_mb_emit_byte (mb, CEE_STIND_REF);
3950 mono_mb_emit_branch (mb, CEE_LEAVE);
3952 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3954 mono_mb_set_clauses (mb, 1, clause);
3956 mono_mb_patch_branch (mb, labels [2]);
3957 mono_mb_emit_ldloc (mb, loc_res);
3958 mono_mb_emit_byte (mb, CEE_RET);
3963 mono_mb_patch_branch (mb, labels [0]);
3964 emit_thread_force_interrupt_checkpoint (mb);
3965 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3967 mono_mb_emit_ldloc (mb, 0);
3968 mono_mb_emit_byte (mb, CEE_RET);
3973 * generates IL code for the runtime invoke function
3974 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3976 * we also catch exceptions if exc != null
3977 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3978 * it means that the compiled code for METHOD does not have to be looked up
3979 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3980 * its METHOD argument.
3983 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3985 MonoMethodSignature *sig, *csig, *callsig;
3986 MonoMethodBuilder *mb;
3987 GHashTable *cache = NULL;
3988 MonoClass *target_klass;
3989 MonoMethod *res = NULL;
3990 static MonoMethodSignature *cctor_signature = NULL;
3991 static MonoMethodSignature *finalize_signature = NULL;
3993 const char *param_names [16];
3994 gboolean need_direct_wrapper = FALSE;
3999 if (!cctor_signature) {
4000 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4001 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4003 if (!finalize_signature) {
4004 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4005 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4006 finalize_signature->hasthis = 1;
4010 need_direct_wrapper = TRUE;
4013 * Use a separate cache indexed by methods to speed things up and to avoid the
4014 * boundless mempool growth caused by the signature_dup stuff below.
4017 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4019 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4021 res = mono_marshal_find_in_cache (cache, method);
4025 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4026 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4028 * Array Get/Set/Address methods. The JIT implements them using inline code
4029 * so we need to create an invoke wrapper which calls the method directly.
4031 need_direct_wrapper = TRUE;
4034 if (method->string_ctor) {
4035 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4037 callsig = add_string_ctor_signature (method);
4038 /* Can't share this as we push a string as this */
4039 need_direct_wrapper = TRUE;
4041 if (method_is_dynamic (method))
4042 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4044 callsig = mono_method_signature (method);
4047 sig = mono_method_signature (method);
4049 target_klass = get_wrapper_target_class (method->klass->image);
4051 /* Try to share wrappers for non-corlib methods with simple signatures */
4052 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4053 callsig = cctor_signature;
4054 target_klass = mono_defaults.object_class;
4055 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4056 callsig = finalize_signature;
4057 target_klass = mono_defaults.object_class;
4060 if (need_direct_wrapper) {
4061 /* Already searched at the start */
4063 MonoMethodSignature *tmp_sig;
4065 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4066 GHashTable **cache_table = NULL;
4068 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4069 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4071 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4073 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4074 (GCompareFunc)runtime_invoke_signature_equal);
4076 /* from mono_marshal_find_in_cache */
4077 mono_marshal_lock ();
4078 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4079 mono_marshal_unlock ();
4086 /* Make a copy of the signature from the image mempool */
4088 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4092 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4094 csig->ret = &mono_defaults.object_class->byval_arg;
4095 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4096 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4098 csig->params [0] = &mono_defaults.object_class->byval_arg;
4099 csig->params [1] = &mono_defaults.int_class->byval_arg;
4100 csig->params [2] = &mono_defaults.int_class->byval_arg;
4101 csig->params [3] = &mono_defaults.int_class->byval_arg;
4104 /* This is called from runtime code so it has to be cdecl */
4105 csig->call_convention = MONO_CALL_C;
4108 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4109 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4113 param_names [0] = "this";
4114 param_names [1] = "params";
4115 param_names [2] = "exc";
4116 param_names [3] = "method";
4117 mono_mb_set_param_names (mb, param_names);
4119 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4122 if (need_direct_wrapper) {
4124 mb->skip_visibility = 1;
4126 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4127 info->d.runtime_invoke.method = method;
4128 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4130 /* taken from mono_mb_create_and_cache */
4131 mono_marshal_lock ();
4132 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4133 mono_marshal_unlock ();
4135 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4136 info->d.runtime_invoke.sig = callsig;
4138 /* Somebody may have created it before us */
4141 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4143 mono_marshal_lock ();
4144 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4146 GHashTable *direct_cache;
4148 g_hash_table_insert (cache, callsig, res);
4149 /* Can't insert it into wrapper_hash since the key is a signature */
4150 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4152 g_hash_table_insert (direct_cache, method, res);
4154 mono_free_method (newm);
4156 mono_marshal_unlock ();
4159 /* end mono_mb_create_and_cache */
4168 * mono_marshal_get_runtime_invoke_dynamic:
4170 * Return a method which can be used to invoke managed methods from native code
4172 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4173 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4174 * ARGS should point to an architecture specific structure containing
4175 * the arguments and space for the return value.
4176 * The other arguments are the same as for runtime_invoke (), except that
4177 * ARGS should contain the this argument too.
4178 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4179 * is only one copy of it, which is useful in full-aot.
4180 * The wrapper info for the wrapper is a WrapperInfo structure.
4183 mono_marshal_get_runtime_invoke_dynamic (void)
4185 static MonoMethod *method;
4186 MonoMethodSignature *csig;
4187 MonoExceptionClause *clause;
4188 MonoMethodBuilder *mb;
4196 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4198 csig->ret = &mono_defaults.void_class->byval_arg;
4199 csig->params [0] = &mono_defaults.int_class->byval_arg;
4200 csig->params [1] = &mono_defaults.int_class->byval_arg;
4201 csig->params [2] = &mono_defaults.int_class->byval_arg;
4202 csig->params [3] = &mono_defaults.int_class->byval_arg;
4204 name = g_strdup ("runtime_invoke_dynamic");
4205 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4209 /* allocate local 0 (object) tmp */
4210 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4211 /* allocate local 1 (object) exc */
4212 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4214 /* cond set *exc to null */
4215 mono_mb_emit_byte (mb, CEE_LDARG_1);
4216 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4217 mono_mb_emit_byte (mb, 3);
4218 mono_mb_emit_byte (mb, CEE_LDARG_1);
4219 mono_mb_emit_byte (mb, CEE_LDNULL);
4220 mono_mb_emit_byte (mb, CEE_STIND_REF);
4222 emit_thread_force_interrupt_checkpoint (mb);
4224 mono_mb_emit_byte (mb, CEE_LDARG_0);
4225 mono_mb_emit_byte (mb, CEE_LDARG_2);
4226 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4227 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4229 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4231 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4232 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4233 clause->try_len = mono_mb_get_label (mb);
4236 clause->data.filter_offset = mono_mb_get_label (mb);
4238 mono_mb_emit_byte (mb, CEE_POP);
4239 mono_mb_emit_byte (mb, CEE_LDARG_1);
4240 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4241 mono_mb_emit_byte (mb, CEE_PREFIX1);
4242 mono_mb_emit_byte (mb, CEE_CGT_UN);
4243 mono_mb_emit_byte (mb, CEE_PREFIX1);
4244 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4246 clause->handler_offset = mono_mb_get_label (mb);
4249 /* store exception */
4250 mono_mb_emit_stloc (mb, 1);
4252 mono_mb_emit_byte (mb, CEE_LDARG_1);
4253 mono_mb_emit_ldloc (mb, 1);
4254 mono_mb_emit_byte (mb, CEE_STIND_REF);
4256 mono_mb_emit_byte (mb, CEE_LDNULL);
4257 mono_mb_emit_stloc (mb, 0);
4259 /* Check for the abort exception */
4260 mono_mb_emit_ldloc (mb, 1);
4261 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4262 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4264 /* Delay the abort exception */
4265 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4267 mono_mb_patch_short_branch (mb, posna);
4268 mono_mb_emit_branch (mb, CEE_LEAVE);
4270 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4272 mono_mb_set_clauses (mb, 1, clause);
4275 mono_mb_patch_branch (mb, pos);
4276 //mono_mb_emit_ldloc (mb, 0);
4277 mono_mb_emit_byte (mb, CEE_RET);
4278 #endif /* DISABLE_JIT */
4280 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4282 mono_marshal_lock ();
4283 /* double-checked locking */
4285 method = mono_mb_create (mb, csig, 16, info);
4287 mono_marshal_unlock ();
4295 * mono_marshal_get_runtime_invoke_for_sig:
4297 * Return a runtime invoke wrapper for a given signature.
4300 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4302 MonoMethodSignature *csig, *callsig;
4303 MonoMethodBuilder *mb;
4305 GHashTable *cache = NULL;
4306 GHashTable **cache_table = NULL;
4307 MonoMethod *res = NULL;
4309 const char *param_names [16];
4312 /* A simplified version of mono_marshal_get_runtime_invoke */
4314 image = mono_defaults.corlib;
4316 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4318 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4320 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4321 (GCompareFunc)runtime_invoke_signature_equal);
4323 /* from mono_marshal_find_in_cache */
4324 mono_marshal_lock ();
4325 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4326 mono_marshal_unlock ();
4333 /* Make a copy of the signature from the image mempool */
4334 callsig = mono_metadata_signature_dup_full (image, callsig);
4336 csig = mono_metadata_signature_alloc (image, 4);
4337 csig->ret = &mono_defaults.object_class->byval_arg;
4338 csig->params [0] = &mono_defaults.object_class->byval_arg;
4339 csig->params [1] = &mono_defaults.int_class->byval_arg;
4340 csig->params [2] = &mono_defaults.int_class->byval_arg;
4341 csig->params [3] = &mono_defaults.int_class->byval_arg;
4344 /* This is called from runtime code so it has to be cdecl */
4345 csig->call_convention = MONO_CALL_C;
4348 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4349 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4353 param_names [0] = "this";
4354 param_names [1] = "params";
4355 param_names [2] = "exc";
4356 param_names [3] = "method";
4357 mono_mb_set_param_names (mb, param_names);
4359 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4362 /* taken from mono_mb_create_and_cache */
4363 mono_marshal_lock ();
4364 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4365 mono_marshal_unlock ();
4367 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4368 info->d.runtime_invoke.sig = callsig;
4370 /* Somebody may have created it before us */
4373 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4375 mono_marshal_lock ();
4376 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4379 g_hash_table_insert (cache, callsig, res);
4381 mono_free_method (newm);
4383 mono_marshal_unlock ();
4386 /* end mono_mb_create_and_cache */
4395 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4397 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4398 klass->name_space, klass->name);
4400 mono_mb_emit_exception_marshal_directive (mb, msg);
4405 * generates IL code for the icall wrapper (the generated method
4406 * calls the unmanaged code in func)
4407 * The wrapper info for the wrapper is a WrapperInfo structure.
4410 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4412 MonoMethodSignature *csig, *csig2;
4413 MonoMethodBuilder *mb;
4418 g_assert (sig->pinvoke);
4420 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4422 mb->method->save_lmf = 1;
4424 /* Add an explicit this argument */
4426 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4428 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4432 mono_mb_emit_byte (mb, CEE_LDARG_0);
4434 for (i = 0; i < sig->param_count; i++)
4435 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4437 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4438 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4439 mono_mb_emit_calli (mb, csig2);
4440 if (check_exceptions)
4441 emit_thread_interrupt_checkpoint (mb);
4442 mono_mb_emit_byte (mb, CEE_RET);
4445 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4447 if (csig->call_convention == MONO_CALL_VARARG)
4448 csig->call_convention = 0;
4450 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4451 info->d.icall.func = (gpointer)func;
4452 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4459 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4460 MonoMarshalSpec *spec,
4461 int conv_arg, MonoType **conv_arg_type,
4462 MarshalAction action)
4465 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4466 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4472 static MonoClass *ICustomMarshaler = NULL;
4473 static MonoMethod *cleanup_native, *cleanup_managed;
4474 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4475 MonoMethod *get_instance = NULL;
4476 MonoMethodBuilder *mb = m->mb;
4477 char *exception_msg = NULL;
4481 if (!ICustomMarshaler) {
4482 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4484 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4485 goto handle_exception;
4488 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4489 g_assert (cleanup_native);
4490 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4491 g_assert (cleanup_managed);
4492 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4493 g_assert (marshal_managed_to_native);
4494 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4495 g_assert (marshal_native_to_managed);
4497 mono_memory_barrier ();
4498 ICustomMarshaler = klass;
4501 if (spec->data.custom_data.image)
4502 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4504 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4505 g_assert (mtype != NULL);
4506 mono_error_assert_ok (&error);
4507 mklass = mono_class_from_mono_type (mtype);
4508 g_assert (mklass != NULL);
4510 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4511 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4513 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4515 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4516 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4517 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4518 (get_sig->params [0]->type != MONO_TYPE_STRING))
4519 get_instance = NULL;
4523 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);
4526 /* Throw exception and emit compensation code if neccesary */
4527 if (exception_msg) {
4529 case MARSHAL_ACTION_CONV_IN:
4530 case MARSHAL_ACTION_CONV_RESULT:
4531 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4532 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4533 mono_mb_emit_byte (mb, CEE_POP);
4535 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4536 g_free (exception_msg);
4539 case MARSHAL_ACTION_PUSH:
4540 mono_mb_emit_byte (mb, CEE_LDNULL);
4548 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4549 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4552 case MARSHAL_ACTION_CONV_IN:
4554 case MONO_TYPE_CLASS:
4555 case MONO_TYPE_OBJECT:
4556 case MONO_TYPE_STRING:
4557 case MONO_TYPE_ARRAY:
4558 case MONO_TYPE_SZARRAY:
4559 case MONO_TYPE_VALUETYPE:
4563 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4564 g_assert_not_reached ();
4568 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4570 mono_mb_emit_byte (mb, CEE_LDNULL);
4571 mono_mb_emit_stloc (mb, conv_arg);
4573 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4576 /* Minic MS.NET behavior */
4577 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4580 /* Check for null */
4581 mono_mb_emit_ldarg (mb, argnum);
4583 mono_mb_emit_byte (mb, CEE_LDIND_I);
4584 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4586 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4588 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4590 mono_mb_emit_ldarg (mb, argnum);
4592 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4594 if (t->type == MONO_TYPE_VALUETYPE) {
4596 * Since we can't determine the type of the argument, we
4597 * will assume the unmanaged function takes a pointer.
4599 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4601 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4604 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4605 mono_mb_emit_stloc (mb, conv_arg);
4607 mono_mb_patch_branch (mb, pos2);
4610 case MARSHAL_ACTION_CONV_OUT:
4611 /* Check for null */
4612 mono_mb_emit_ldloc (mb, conv_arg);
4613 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4616 mono_mb_emit_ldarg (mb, argnum);
4618 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4620 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4622 mono_mb_emit_ldloc (mb, conv_arg);
4623 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4624 mono_mb_emit_byte (mb, CEE_STIND_REF);
4625 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4626 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4628 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4630 mono_mb_emit_ldloc (mb, conv_arg);
4631 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4633 /* We have nowhere to store the result */
4634 mono_mb_emit_byte (mb, CEE_POP);
4637 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4639 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4641 mono_mb_emit_ldloc (mb, conv_arg);
4643 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4645 mono_mb_patch_branch (mb, pos2);
4648 case MARSHAL_ACTION_PUSH:
4650 mono_mb_emit_ldloc_addr (mb, conv_arg);
4652 mono_mb_emit_ldloc (mb, conv_arg);
4655 case MARSHAL_ACTION_CONV_RESULT:
4656 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4658 mono_mb_emit_stloc (mb, 3);
4660 mono_mb_emit_ldloc (mb, 3);
4661 mono_mb_emit_stloc (mb, loc1);
4663 /* Check for null */
4664 mono_mb_emit_ldloc (mb, 3);
4665 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4667 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4669 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4670 mono_mb_emit_byte (mb, CEE_DUP);
4672 mono_mb_emit_ldloc (mb, 3);
4673 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4674 mono_mb_emit_stloc (mb, 3);
4676 mono_mb_emit_ldloc (mb, loc1);
4677 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4679 mono_mb_patch_branch (mb, pos2);
4682 case MARSHAL_ACTION_MANAGED_CONV_IN:
4683 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4685 mono_mb_emit_byte (mb, CEE_LDNULL);
4686 mono_mb_emit_stloc (mb, conv_arg);
4688 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4691 /* Check for null */
4692 mono_mb_emit_ldarg (mb, argnum);
4694 mono_mb_emit_byte (mb, CEE_LDIND_I);
4695 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4697 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4698 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4700 mono_mb_emit_ldarg (mb, argnum);
4702 mono_mb_emit_byte (mb, CEE_LDIND_I);
4704 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4705 mono_mb_emit_stloc (mb, conv_arg);
4707 mono_mb_patch_branch (mb, pos2);
4710 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4711 g_assert (!t->byref);
4713 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4715 mono_mb_emit_stloc (mb, 3);
4717 mono_mb_emit_ldloc (mb, 3);
4718 mono_mb_emit_stloc (mb, loc1);
4720 /* Check for null */
4721 mono_mb_emit_ldloc (mb, 3);
4722 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4724 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4725 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4726 mono_mb_emit_byte (mb, CEE_DUP);
4728 mono_mb_emit_ldloc (mb, 3);
4729 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4730 mono_mb_emit_stloc (mb, 3);
4732 mono_mb_emit_ldloc (mb, loc1);
4733 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4735 mono_mb_patch_branch (mb, pos2);
4738 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4740 /* Check for null */
4741 mono_mb_emit_ldloc (mb, conv_arg);
4742 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4745 mono_mb_emit_ldarg (mb, argnum);
4747 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4749 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4751 mono_mb_emit_ldloc (mb, conv_arg);
4752 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4753 mono_mb_emit_byte (mb, CEE_STIND_I);
4756 /* Call CleanUpManagedData */
4757 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4759 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4761 mono_mb_emit_ldloc (mb, conv_arg);
4762 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4764 mono_mb_patch_branch (mb, pos2);
4768 g_assert_not_reached ();
4776 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4777 MonoMarshalSpec *spec,
4778 int conv_arg, MonoType **conv_arg_type,
4779 MarshalAction action)
4782 MonoMethodBuilder *mb = m->mb;
4785 case MARSHAL_ACTION_CONV_IN: {
4786 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4788 g_assert (t->type == MONO_TYPE_OBJECT);
4789 g_assert (!t->byref);
4791 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4792 mono_mb_emit_ldarg (mb, argnum);
4793 mono_mb_emit_icon (mb, encoding);
4794 mono_mb_emit_icon (mb, t->attrs);
4795 mono_mb_emit_icall (mb, mono_marshal_asany);
4796 mono_mb_emit_stloc (mb, conv_arg);
4800 case MARSHAL_ACTION_PUSH:
4801 mono_mb_emit_ldloc (mb, conv_arg);
4804 case MARSHAL_ACTION_CONV_OUT: {
4805 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4807 mono_mb_emit_ldarg (mb, argnum);
4808 mono_mb_emit_ldloc (mb, conv_arg);
4809 mono_mb_emit_icon (mb, encoding);
4810 mono_mb_emit_icon (mb, t->attrs);
4811 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4816 g_assert_not_reached ();
4823 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4824 MonoMarshalSpec *spec,
4825 int conv_arg, MonoType **conv_arg_type,
4826 MarshalAction action)
4829 MonoMethodBuilder *mb = m->mb;
4830 MonoClass *klass, *date_time_class;
4833 klass = mono_class_from_mono_type (t);
4835 date_time_class = mono_class_get_date_time_class ();
4838 case MARSHAL_ACTION_CONV_IN:
4839 if (klass == date_time_class) {
4840 /* Convert it to an OLE DATE type */
4841 static MonoMethod *to_oadate;
4844 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4845 g_assert (to_oadate);
4847 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4850 mono_mb_emit_ldarg (mb, argnum);
4851 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4854 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4856 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4858 mono_mb_emit_ldarg_addr (mb, argnum);
4859 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4860 mono_mb_emit_stloc (mb, conv_arg);
4864 mono_mb_patch_branch (mb, pos);
4868 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4869 klass->blittable || klass->enumtype)
4872 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4874 /* store the address of the source into local variable 0 */
4876 mono_mb_emit_ldarg (mb, argnum);
4878 mono_mb_emit_ldarg_addr (mb, argnum);
4880 mono_mb_emit_stloc (mb, 0);
4882 /* allocate space for the native struct and
4883 * store the address into local variable 1 (dest) */
4884 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4885 mono_mb_emit_byte (mb, CEE_PREFIX1);
4886 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4887 mono_mb_emit_stloc (mb, conv_arg);
4890 mono_mb_emit_ldloc (mb, 0);
4891 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4894 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4896 mono_mb_emit_ldloc (mb, conv_arg);
4897 mono_mb_emit_stloc (mb, 1);
4899 /* emit valuetype conversion code */
4900 emit_struct_conv (mb, klass, FALSE);
4904 mono_mb_patch_branch (mb, pos);
4907 case MARSHAL_ACTION_PUSH:
4908 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4910 g_assert (!t->byref);
4912 /* Have to change the signature since the vtype is passed byref */
4913 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4915 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4916 klass->blittable || klass->enumtype)
4917 mono_mb_emit_ldarg_addr (mb, argnum);
4919 mono_mb_emit_ldloc (mb, conv_arg);
4923 if (klass == date_time_class) {
4925 mono_mb_emit_ldloc_addr (mb, conv_arg);
4927 mono_mb_emit_ldloc (mb, conv_arg);
4931 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4932 klass->blittable || klass->enumtype) {
4933 mono_mb_emit_ldarg (mb, argnum);
4936 mono_mb_emit_ldloc (mb, conv_arg);
4938 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4939 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4943 case MARSHAL_ACTION_CONV_OUT:
4944 if (klass == date_time_class) {
4945 /* Convert from an OLE DATE type */
4946 static MonoMethod *from_oadate;
4951 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4953 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4954 g_assert (from_oadate);
4956 mono_mb_emit_ldarg (mb, argnum);
4957 mono_mb_emit_ldloc (mb, conv_arg);
4958 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4959 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4964 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4965 klass->blittable || klass->enumtype)
4969 /* dst = argument */
4970 mono_mb_emit_ldarg (mb, argnum);
4971 mono_mb_emit_stloc (mb, 1);
4973 mono_mb_emit_ldloc (mb, 1);
4974 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4976 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4977 /* src = tmp_locals [i] */
4978 mono_mb_emit_ldloc (mb, conv_arg);
4979 mono_mb_emit_stloc (mb, 0);
4981 /* emit valuetype conversion code */
4982 emit_struct_conv (mb, klass, TRUE);
4986 emit_struct_free (mb, klass, conv_arg);
4989 mono_mb_patch_branch (mb, pos);
4992 case MARSHAL_ACTION_CONV_RESULT:
4993 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4995 mono_mb_emit_stloc (mb, 3);
4999 /* load pointer to returned value type */
5000 g_assert (m->vtaddr_var);
5001 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5002 /* store the address of the source into local variable 0 */
5003 mono_mb_emit_stloc (mb, 0);
5005 mono_mb_emit_ldloc_addr (mb, 3);
5006 mono_mb_emit_stloc (mb, 1);
5008 /* emit valuetype conversion code */
5009 emit_struct_conv (mb, klass, TRUE);
5012 case MARSHAL_ACTION_MANAGED_CONV_IN:
5013 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5014 klass->blittable || klass->enumtype) {
5019 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5021 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5025 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_ldarg_addr (mb, argnum);
5028 mono_mb_emit_stloc (mb, 0);
5031 mono_mb_emit_ldloc (mb, 0);
5032 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5035 mono_mb_emit_ldloc_addr (mb, conv_arg);
5036 mono_mb_emit_stloc (mb, 1);
5038 /* emit valuetype conversion code */
5039 emit_struct_conv (mb, klass, TRUE);
5042 mono_mb_patch_branch (mb, pos);
5045 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5046 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5047 klass->blittable || klass->enumtype) {
5051 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5054 /* Check for null */
5055 mono_mb_emit_ldarg (mb, argnum);
5056 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5059 mono_mb_emit_ldloc_addr (mb, conv_arg);
5060 mono_mb_emit_stloc (mb, 0);
5063 mono_mb_emit_ldarg (mb, argnum);
5064 mono_mb_emit_stloc (mb, 1);
5066 /* emit valuetype conversion code */
5067 emit_struct_conv (mb, klass, FALSE);
5069 mono_mb_patch_branch (mb, pos2);
5072 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5073 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5074 klass->blittable || klass->enumtype) {
5075 mono_mb_emit_stloc (mb, 3);
5080 /* load pointer to returned value type */
5081 g_assert (m->vtaddr_var);
5082 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5084 /* store the address of the source into local variable 0 */
5085 mono_mb_emit_stloc (mb, 0);
5086 /* allocate space for the native struct and
5087 * store the address into dst_ptr */
5088 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5089 m->retobj_class = klass;
5090 g_assert (m->retobj_var);
5091 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5092 mono_mb_emit_byte (mb, CEE_CONV_I);
5093 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5094 mono_mb_emit_stloc (mb, 1);
5095 mono_mb_emit_ldloc (mb, 1);
5096 mono_mb_emit_stloc (mb, m->retobj_var);
5098 /* emit valuetype conversion code */
5099 emit_struct_conv (mb, klass, FALSE);
5103 g_assert_not_reached ();
5110 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5111 MonoMarshalSpec *spec,
5112 int conv_arg, MonoType **conv_arg_type,
5113 MarshalAction action)
5117 case MARSHAL_ACTION_CONV_IN:
5118 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5120 case MARSHAL_ACTION_MANAGED_CONV_IN:
5121 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5125 MonoMethodBuilder *mb = m->mb;
5126 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5127 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5131 case MARSHAL_ACTION_CONV_IN:
5132 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5133 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5136 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_byte (mb, CEE_LDIND_I);
5142 mono_mb_emit_ldarg (mb, argnum);
5145 if (conv == MONO_MARSHAL_CONV_INVALID) {
5146 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5147 mono_mb_emit_exception_marshal_directive (mb, msg);
5149 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5151 mono_mb_emit_stloc (mb, conv_arg);
5155 case MARSHAL_ACTION_CONV_OUT:
5156 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5157 if (conv == MONO_MARSHAL_CONV_INVALID) {
5158 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5159 mono_mb_emit_exception_marshal_directive (mb, msg);
5163 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5164 static MonoMethod *m;
5167 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5172 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5173 mono_mb_emit_exception_marshal_directive (mb, msg);
5178 * Have to allocate a new string with the same length as the original, and
5179 * copy the contents of the buffer pointed to by CONV_ARG into it.
5181 g_assert (t->byref);
5182 mono_mb_emit_ldarg (mb, argnum);
5183 mono_mb_emit_ldloc (mb, conv_arg);
5184 mono_mb_emit_ldarg (mb, argnum);
5185 mono_mb_emit_byte (mb, CEE_LDIND_I);
5186 mono_mb_emit_managed_call (mb, m, NULL);
5187 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5188 mono_mb_emit_byte (mb, CEE_STIND_REF);
5189 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5191 mono_mb_emit_ldarg (mb, argnum);
5192 mono_mb_emit_ldloc (mb, conv_arg);
5193 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5194 mono_mb_emit_byte (mb, stind_op);
5199 mono_mb_emit_ldloc (mb, conv_arg);
5200 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5201 mono_mb_emit_icall (mb, mono_free_bstr);
5203 mono_mb_emit_icall (mb, mono_marshal_free);
5207 case MARSHAL_ACTION_PUSH:
5208 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5209 mono_mb_emit_ldloc_addr (mb, conv_arg);
5211 mono_mb_emit_ldloc (mb, conv_arg);
5214 case MARSHAL_ACTION_CONV_RESULT:
5215 mono_mb_emit_stloc (mb, 0);
5217 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5218 if (conv == MONO_MARSHAL_CONV_INVALID) {
5219 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5220 mono_mb_emit_exception_marshal_directive (mb, msg);
5224 mono_mb_emit_ldloc (mb, 0);
5225 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5226 mono_mb_emit_stloc (mb, 3);
5228 /* free the string */
5229 mono_mb_emit_ldloc (mb, 0);
5230 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5231 mono_mb_emit_icall (mb, mono_free_bstr);
5233 mono_mb_emit_icall (mb, mono_marshal_free);
5236 case MARSHAL_ACTION_MANAGED_CONV_IN:
5237 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5239 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5242 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5246 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5247 if (conv == MONO_MARSHAL_CONV_INVALID) {
5248 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5249 mono_mb_emit_exception_marshal_directive (mb, msg);
5253 mono_mb_emit_ldarg (mb, argnum);
5255 mono_mb_emit_byte (mb, CEE_LDIND_I);
5256 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5257 mono_mb_emit_stloc (mb, conv_arg);
5260 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5264 mono_mb_emit_ldarg (mb, argnum);
5265 mono_mb_emit_ldloc (mb, conv_arg);
5266 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5267 mono_mb_emit_byte (mb, stind_op);
5272 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5273 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5274 /* We need to make a copy so the caller is able to free it */
5275 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5277 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5278 mono_mb_emit_stloc (mb, 3);
5282 g_assert_not_reached ();
5290 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5291 MonoMarshalSpec *spec, int conv_arg,
5292 MonoType **conv_arg_type, MarshalAction action)
5295 if (action == MARSHAL_ACTION_CONV_IN)
5296 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5298 MonoMethodBuilder *mb = m->mb;
5301 case MARSHAL_ACTION_CONV_IN: {
5302 MonoType *intptr_type;
5303 int dar_release_slot, pos;
5305 intptr_type = &mono_defaults.int_class->byval_arg;
5306 conv_arg = mono_mb_add_local (mb, intptr_type);
5307 *conv_arg_type = intptr_type;
5309 if (!sh_dangerous_add_ref)
5310 init_safe_handle ();
5312 mono_mb_emit_ldarg (mb, argnum);
5313 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5314 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5316 mono_mb_patch_branch (mb, pos);
5319 * My tests in show that ref SafeHandles are not really
5320 * passed as ref objects. Instead a NULL is passed as the
5323 mono_mb_emit_icon (mb, 0);
5324 mono_mb_emit_stloc (mb, conv_arg);
5328 /* Create local to hold the ref parameter to DangerousAddRef */
5329 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5331 /* set release = false; */
5332 mono_mb_emit_icon (mb, 0);
5333 mono_mb_emit_stloc (mb, dar_release_slot);
5335 /* safehandle.DangerousAddRef (ref release) */
5336 mono_mb_emit_ldarg (mb, argnum);
5337 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5338 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5340 /* Pull the handle field from SafeHandle */
5341 mono_mb_emit_ldarg (mb, argnum);
5342 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5343 mono_mb_emit_byte (mb, CEE_LDIND_I);
5344 mono_mb_emit_stloc (mb, conv_arg);
5349 case MARSHAL_ACTION_PUSH:
5351 mono_mb_emit_ldloc_addr (mb, conv_arg);
5353 mono_mb_emit_ldloc (mb, conv_arg);
5356 case MARSHAL_ACTION_CONV_OUT: {
5357 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5358 int dar_release_slot = conv_arg + 1;
5361 if (!sh_dangerous_release)
5362 init_safe_handle ();
5368 * My tests indicate that ref SafeHandles parameters are not actually
5369 * passed by ref, but instead a new Handle is created regardless of
5370 * whether a change happens in the unmanaged side.
5372 * Also, the Handle is created before calling into unmanaged code,
5373 * but we do not support that mechanism (getting to the original
5374 * handle) and it makes no difference where we create this
5376 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5378 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5381 /* refval = new SafeHandleDerived ()*/
5382 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5384 mono_mb_emit_byte (mb, CEE_STIND_REF);
5386 /* refval.handle = returned_handle */
5387 mono_mb_emit_ldarg (mb, argnum);
5388 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5390 mono_mb_emit_ldloc (mb, conv_arg);
5391 mono_mb_emit_byte (mb, CEE_STIND_I);
5393 mono_mb_emit_ldloc (mb, dar_release_slot);
5394 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5395 mono_mb_emit_ldarg (mb, argnum);
5396 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5397 mono_mb_patch_branch (mb, label_next);
5402 case MARSHAL_ACTION_CONV_RESULT: {
5403 MonoMethod *ctor = NULL;
5404 int intptr_handle_slot;
5406 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5407 mono_mb_emit_byte (mb, CEE_POP);
5408 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5412 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5414 mono_mb_emit_byte (mb, CEE_POP);
5415 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5418 /* Store the IntPtr results into a local */
5419 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5420 mono_mb_emit_stloc (mb, intptr_handle_slot);
5422 /* Create return value */
5423 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5424 mono_mb_emit_stloc (mb, 3);
5426 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5427 mono_mb_emit_ldloc (mb, 3);
5428 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5429 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5430 mono_mb_emit_byte (mb, CEE_STIND_I);
5434 case MARSHAL_ACTION_MANAGED_CONV_IN:
5435 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5438 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5439 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5442 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5443 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5446 printf ("Unhandled case for MarshalAction: %d\n", action);
5454 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5455 MonoMarshalSpec *spec, int conv_arg,
5456 MonoType **conv_arg_type, MarshalAction action)
5459 if (action == MARSHAL_ACTION_CONV_IN)
5460 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5462 MonoMethodBuilder *mb = m->mb;
5465 case MARSHAL_ACTION_CONV_IN: {
5466 MonoType *intptr_type;
5468 intptr_type = &mono_defaults.int_class->byval_arg;
5469 conv_arg = mono_mb_add_local (mb, intptr_type);
5470 *conv_arg_type = intptr_type;
5473 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5474 mono_mb_emit_exception_marshal_directive (mb, msg);
5477 mono_mb_emit_ldarg_addr (mb, argnum);
5478 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5479 mono_mb_emit_byte (mb, CEE_ADD);
5480 mono_mb_emit_byte (mb, CEE_LDIND_I);
5481 mono_mb_emit_stloc (mb, conv_arg);
5485 case MARSHAL_ACTION_PUSH:
5486 mono_mb_emit_ldloc (mb, conv_arg);
5489 case MARSHAL_ACTION_CONV_OUT: {
5490 /* no resource release required */
5494 case MARSHAL_ACTION_CONV_RESULT: {
5495 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5496 mono_mb_emit_exception_marshal_directive (mb, msg);
5500 case MARSHAL_ACTION_MANAGED_CONV_IN:
5501 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5504 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5505 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5508 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5509 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5512 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5520 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5521 MonoMarshalSpec *spec,
5522 int conv_arg, MonoType **conv_arg_type,
5523 MarshalAction action)
5526 if (action == MARSHAL_ACTION_CONV_IN)
5527 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5529 MonoMethodBuilder *mb = m->mb;
5530 MonoClass *klass = mono_class_from_mono_type (t);
5534 case MARSHAL_ACTION_CONV_IN:
5535 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5536 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5538 m->orig_conv_args [argnum] = 0;
5540 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5541 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5542 mono_mb_emit_exception_marshal_directive (mb, msg);
5546 if (klass->delegate) {
5548 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5549 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5550 mono_mb_emit_exception_marshal_directive (mb, msg);
5552 mono_mb_emit_byte (mb, CEE_LDNULL);
5553 mono_mb_emit_stloc (mb, conv_arg);
5555 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5557 mono_mb_emit_stloc (mb, conv_arg);
5559 } else if (klass == mono_defaults.stringbuilder_class) {
5560 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5561 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5565 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5566 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5567 mono_mb_emit_exception_marshal_directive (mb, msg);
5573 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5576 if (conv == MONO_MARSHAL_CONV_INVALID) {
5577 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5578 mono_mb_emit_exception_marshal_directive (mb, msg);
5582 mono_mb_emit_ldarg (mb, argnum);
5584 mono_mb_emit_byte (mb, CEE_LDIND_I);
5586 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5587 mono_mb_emit_stloc (mb, conv_arg);
5588 } else if (klass->blittable) {
5589 mono_mb_emit_byte (mb, CEE_LDNULL);
5590 mono_mb_emit_stloc (mb, conv_arg);
5592 mono_mb_emit_ldarg (mb, argnum);
5593 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5595 mono_mb_emit_ldarg (mb, argnum);
5596 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5597 mono_mb_emit_stloc (mb, conv_arg);
5599 mono_mb_patch_branch (mb, pos);
5602 mono_mb_emit_byte (mb, CEE_LDNULL);
5603 mono_mb_emit_stloc (mb, conv_arg);
5606 /* we dont need any conversions for out parameters */
5607 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5610 mono_mb_emit_ldarg (mb, argnum);
5611 mono_mb_emit_byte (mb, CEE_LDIND_I);
5614 mono_mb_emit_ldarg (mb, argnum);
5615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5616 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5619 /* store the address of the source into local variable 0 */
5620 mono_mb_emit_stloc (mb, 0);
5621 mono_mb_emit_ldloc (mb, 0);
5622 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5624 /* allocate space for the native struct and store the address */
5625 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5626 mono_mb_emit_byte (mb, CEE_PREFIX1);
5627 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5628 mono_mb_emit_stloc (mb, conv_arg);
5631 /* Need to store the original buffer so we can free it later */
5632 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5633 mono_mb_emit_ldloc (mb, conv_arg);
5634 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5637 /* set the src_ptr */
5638 mono_mb_emit_ldloc (mb, 0);
5639 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5640 mono_mb_emit_stloc (mb, 0);
5643 mono_mb_emit_ldloc (mb, conv_arg);
5644 mono_mb_emit_stloc (mb, 1);
5646 /* emit valuetype conversion code */
5647 emit_struct_conv (mb, klass, FALSE);
5649 mono_mb_patch_branch (mb, pos);
5653 case MARSHAL_ACTION_CONV_OUT:
5654 if (klass == mono_defaults.stringbuilder_class) {
5656 MonoMarshalNative encoding;
5657 MonoMarshalConv conv;
5659 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5660 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5662 g_assert (encoding != -1);
5665 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5669 mono_mb_emit_ldarg (mb, argnum);
5670 mono_mb_emit_ldloc (mb, conv_arg);
5673 case MONO_NATIVE_LPWSTR:
5674 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5676 case MONO_NATIVE_LPSTR:
5677 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5680 g_assert_not_reached ();
5683 mono_mb_emit_byte (mb, CEE_STIND_REF);
5685 mono_mb_emit_ldarg (mb, argnum);
5686 mono_mb_emit_ldloc (mb, conv_arg);
5688 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5692 mono_mb_emit_ldloc (mb, conv_arg);
5693 mono_mb_emit_icall (mb, mono_marshal_free);
5698 if (klass->delegate) {
5700 mono_mb_emit_ldarg (mb, argnum);
5701 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5702 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5703 mono_mb_emit_ldloc (mb, conv_arg);
5704 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5705 mono_mb_emit_byte (mb, CEE_STIND_REF);
5710 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5711 /* allocate a new object */
5712 mono_mb_emit_ldarg (mb, argnum);
5713 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5714 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5715 mono_mb_emit_byte (mb, CEE_STIND_REF);
5718 /* dst = *argument */
5719 mono_mb_emit_ldarg (mb, argnum);
5722 mono_mb_emit_byte (mb, CEE_LDIND_I);
5724 mono_mb_emit_stloc (mb, 1);
5726 mono_mb_emit_ldloc (mb, 1);
5727 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5729 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5730 mono_mb_emit_ldloc (mb, 1);
5731 mono_mb_emit_icon (mb, sizeof (MonoObject));
5732 mono_mb_emit_byte (mb, CEE_ADD);
5733 mono_mb_emit_stloc (mb, 1);
5735 /* src = tmp_locals [i] */
5736 mono_mb_emit_ldloc (mb, conv_arg);
5737 mono_mb_emit_stloc (mb, 0);
5739 /* emit valuetype conversion code */
5740 emit_struct_conv (mb, klass, TRUE);
5742 /* Free the structure returned by the native code */
5743 emit_struct_free (mb, klass, conv_arg);
5745 if (m->orig_conv_args [argnum]) {
5747 * If the native function changed the pointer, then free
5748 * the original structure plus the new pointer.
5750 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5751 mono_mb_emit_ldloc (mb, conv_arg);
5752 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5754 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5755 g_assert (m->orig_conv_args [argnum]);
5757 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5760 mono_mb_emit_ldloc (mb, conv_arg);
5761 mono_mb_emit_icall (mb, mono_marshal_free);
5763 mono_mb_patch_branch (mb, pos2);
5767 /* Free the original structure passed to native code */
5768 emit_struct_free (mb, klass, conv_arg);
5770 mono_mb_patch_branch (mb, pos);
5773 case MARSHAL_ACTION_PUSH:
5775 mono_mb_emit_ldloc_addr (mb, conv_arg);
5777 mono_mb_emit_ldloc (mb, conv_arg);
5780 case MARSHAL_ACTION_CONV_RESULT:
5781 if (klass->delegate) {
5782 g_assert (!t->byref);
5783 mono_mb_emit_stloc (mb, 0);
5784 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5785 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5786 mono_mb_emit_ldloc (mb, 0);
5787 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5788 mono_mb_emit_stloc (mb, 3);
5791 mono_mb_emit_stloc (mb, 0);
5793 /* Make a copy since emit_conv modifies local 0 */
5794 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5795 mono_mb_emit_ldloc (mb, 0);
5796 mono_mb_emit_stloc (mb, loc);
5798 mono_mb_emit_byte (mb, CEE_LDNULL);
5799 mono_mb_emit_stloc (mb, 3);
5801 mono_mb_emit_ldloc (mb, 0);
5802 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5804 /* allocate result object */
5806 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5807 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5808 mono_mb_emit_stloc (mb, 3);
5812 mono_mb_emit_ldloc (mb, 3);
5813 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5814 mono_mb_emit_stloc (mb, 1);
5816 /* emit conversion code */
5817 emit_struct_conv (mb, klass, TRUE);
5819 emit_struct_free (mb, klass, loc);
5821 /* Free the pointer allocated by unmanaged code */
5822 mono_mb_emit_ldloc (mb, loc);
5823 mono_mb_emit_icall (mb, mono_marshal_free);
5824 mono_mb_patch_branch (mb, pos);
5828 case MARSHAL_ACTION_MANAGED_CONV_IN:
5829 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5831 if (klass->delegate) {
5832 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5833 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5834 mono_mb_emit_ldarg (mb, argnum);
5836 mono_mb_emit_byte (mb, CEE_LDIND_I);
5837 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5838 mono_mb_emit_stloc (mb, conv_arg);
5842 if (klass == mono_defaults.stringbuilder_class) {
5843 MonoMarshalNative encoding;
5845 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5848 g_assert (encoding == MONO_NATIVE_LPSTR);
5850 g_assert (!t->byref);
5851 g_assert (encoding != -1);
5853 mono_mb_emit_ldarg (mb, argnum);
5854 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5855 mono_mb_emit_stloc (mb, conv_arg);
5859 /* The class can not have an automatic layout */
5860 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5861 mono_mb_emit_auto_layout_exception (mb, klass);
5865 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5866 mono_mb_emit_byte (mb, CEE_LDNULL);
5867 mono_mb_emit_stloc (mb, conv_arg);
5872 mono_mb_emit_ldarg (mb, argnum);
5876 /* Check for NULL and raise an exception */
5877 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5879 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5881 mono_mb_patch_branch (mb, pos2);
5882 mono_mb_emit_ldarg (mb, argnum);
5883 mono_mb_emit_byte (mb, CEE_LDIND_I);
5886 mono_mb_emit_stloc (mb, 0);
5888 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5889 mono_mb_emit_stloc (mb, conv_arg);
5891 mono_mb_emit_ldloc (mb, 0);
5892 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5894 /* Create and set dst */
5895 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5896 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5897 mono_mb_emit_stloc (mb, conv_arg);
5898 mono_mb_emit_ldloc (mb, conv_arg);
5899 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5900 mono_mb_emit_stloc (mb, 1);
5902 /* emit valuetype conversion code */
5903 emit_struct_conv (mb, klass, TRUE);
5905 mono_mb_patch_branch (mb, pos);
5908 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5909 if (klass->delegate) {
5912 mono_mb_emit_ldarg (mb, argnum);
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5915 mono_mb_emit_byte (mb, stind_op);
5921 /* Check for null */
5922 mono_mb_emit_ldloc (mb, conv_arg);
5923 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5926 mono_mb_emit_byte (mb, CEE_STIND_REF);
5927 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5929 mono_mb_patch_branch (mb, pos);
5932 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5934 mono_mb_emit_stloc (mb, 0);
5936 /* Allocate and set dest */
5937 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5938 mono_mb_emit_byte (mb, CEE_CONV_I);
5939 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5940 mono_mb_emit_stloc (mb, 1);
5942 /* Update argument pointer */
5943 mono_mb_emit_ldarg (mb, argnum);
5944 mono_mb_emit_ldloc (mb, 1);
5945 mono_mb_emit_byte (mb, CEE_STIND_I);
5947 /* emit valuetype conversion code */
5948 emit_struct_conv (mb, klass, FALSE);
5950 mono_mb_patch_branch (mb, pos2);
5951 } else if (klass == mono_defaults.stringbuilder_class) {
5952 // FIXME: What to do here ?
5954 /* byval [Out] marshalling */
5956 /* FIXME: Handle null */
5959 mono_mb_emit_ldloc (mb, conv_arg);
5960 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5961 mono_mb_emit_stloc (mb, 0);
5964 mono_mb_emit_ldarg (mb, argnum);
5965 mono_mb_emit_stloc (mb, 1);
5967 /* emit valuetype conversion code */
5968 emit_struct_conv (mb, klass, FALSE);
5972 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5973 if (klass->delegate) {
5974 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5975 mono_mb_emit_stloc (mb, 3);
5979 /* The class can not have an automatic layout */
5980 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5981 mono_mb_emit_auto_layout_exception (mb, klass);
5985 mono_mb_emit_stloc (mb, 0);
5986 /* Check for null */
5987 mono_mb_emit_ldloc (mb, 0);
5988 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5989 mono_mb_emit_byte (mb, CEE_LDNULL);
5990 mono_mb_emit_stloc (mb, 3);
5991 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5993 mono_mb_patch_branch (mb, pos);
5996 mono_mb_emit_ldloc (mb, 0);
5997 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5998 mono_mb_emit_stloc (mb, 0);
6000 /* Allocate and set dest */
6001 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6002 mono_mb_emit_byte (mb, CEE_CONV_I);
6003 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6004 mono_mb_emit_byte (mb, CEE_DUP);
6005 mono_mb_emit_stloc (mb, 1);
6006 mono_mb_emit_stloc (mb, 3);
6008 emit_struct_conv (mb, klass, FALSE);
6010 mono_mb_patch_branch (mb, pos2);
6014 g_assert_not_reached ();
6025 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6026 MonoMarshalSpec *spec,
6027 int conv_arg, MonoType **conv_arg_type,
6028 MarshalAction action)
6030 MonoMethodBuilder *mb = m->mb;
6031 static MonoMethod *get_object_for_native_variant = NULL;
6032 static MonoMethod *get_native_variant_for_object = NULL;
6034 if (!get_object_for_native_variant)
6035 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6036 g_assert (get_object_for_native_variant);
6038 if (!get_native_variant_for_object)
6039 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6040 g_assert (get_native_variant_for_object);
6043 case MARSHAL_ACTION_CONV_IN: {
6044 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6047 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6049 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6051 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6054 mono_mb_emit_ldarg (mb, argnum);
6056 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6057 mono_mb_emit_ldloc_addr (mb, conv_arg);
6058 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6062 case MARSHAL_ACTION_CONV_OUT: {
6063 static MonoMethod *variant_clear = NULL;
6066 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6067 g_assert (variant_clear);
6070 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6071 mono_mb_emit_ldarg (mb, argnum);
6072 mono_mb_emit_ldloc_addr (mb, conv_arg);
6073 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6074 mono_mb_emit_byte (mb, CEE_STIND_REF);
6077 mono_mb_emit_ldloc_addr (mb, conv_arg);
6078 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6082 case MARSHAL_ACTION_PUSH:
6084 mono_mb_emit_ldloc_addr (mb, conv_arg);
6086 mono_mb_emit_ldloc (mb, conv_arg);
6089 case MARSHAL_ACTION_CONV_RESULT: {
6090 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6091 mono_mb_emit_exception_marshal_directive (mb, msg);
6095 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6096 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6099 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6101 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6103 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6107 mono_mb_emit_ldarg (mb, argnum);
6109 mono_mb_emit_ldarg_addr (mb, argnum);
6110 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6111 mono_mb_emit_stloc (mb, conv_arg);
6115 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6116 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6117 mono_mb_emit_ldloc (mb, conv_arg);
6118 mono_mb_emit_ldarg (mb, argnum);
6119 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6124 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6125 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6126 mono_mb_emit_exception_marshal_directive (mb, msg);
6131 g_assert_not_reached ();
6137 #endif /* DISABLE_COM */
6138 #endif /* DISABLE_JIT */
6141 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6143 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6144 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6146 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6148 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6160 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6161 MonoMarshalSpec *spec,
6162 int conv_arg, MonoType **conv_arg_type,
6163 MarshalAction action)
6167 case MARSHAL_ACTION_CONV_IN:
6168 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6170 case MARSHAL_ACTION_MANAGED_CONV_IN:
6171 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6175 MonoMethodBuilder *mb = m->mb;
6176 MonoClass *klass = mono_class_from_mono_type (t);
6177 gboolean need_convert, need_free;
6178 MonoMarshalNative encoding;
6180 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6183 case MARSHAL_ACTION_CONV_IN:
6184 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6185 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6187 if (klass->element_class->blittable) {
6188 mono_mb_emit_ldarg (mb, argnum);
6190 mono_mb_emit_byte (mb, CEE_LDIND_I);
6191 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6192 mono_mb_emit_stloc (mb, conv_arg);
6195 guint32 label1, label2, label3;
6196 int index_var, src_var, dest_ptr, esize;
6197 MonoMarshalConv conv;
6198 gboolean is_string = FALSE;
6200 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6202 eklass = klass->element_class;
6204 if (eklass == mono_defaults.string_class) {
6206 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6208 else if (eklass == mono_defaults.stringbuilder_class) {
6210 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6213 conv = MONO_MARSHAL_CONV_INVALID;
6215 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6216 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6217 mono_mb_emit_exception_marshal_directive (mb, msg);
6221 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6222 mono_mb_emit_ldarg (mb, argnum);
6224 mono_mb_emit_byte (mb, CEE_LDIND_I);
6225 mono_mb_emit_stloc (mb, src_var);
6228 mono_mb_emit_ldloc (mb, src_var);
6229 mono_mb_emit_stloc (mb, conv_arg);
6230 mono_mb_emit_ldloc (mb, src_var);
6231 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6234 esize = sizeof (gpointer);
6235 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6236 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6238 esize = mono_class_native_size (eklass, NULL);
6240 /* allocate space for the native struct and store the address */
6241 mono_mb_emit_icon (mb, esize);
6242 mono_mb_emit_ldloc (mb, src_var);
6243 mono_mb_emit_byte (mb, CEE_LDLEN);
6245 if (eklass == mono_defaults.string_class) {
6246 /* Make the array bigger for the terminating null */
6247 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6248 mono_mb_emit_byte (mb, CEE_ADD);
6250 mono_mb_emit_byte (mb, CEE_MUL);
6251 mono_mb_emit_byte (mb, CEE_PREFIX1);
6252 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6253 mono_mb_emit_stloc (mb, conv_arg);
6255 mono_mb_emit_ldloc (mb, conv_arg);
6256 mono_mb_emit_stloc (mb, dest_ptr);
6258 /* Emit marshalling loop */
6259 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6260 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6261 mono_mb_emit_stloc (mb, index_var);
6262 label2 = mono_mb_get_label (mb);
6263 mono_mb_emit_ldloc (mb, index_var);
6264 mono_mb_emit_ldloc (mb, src_var);
6265 mono_mb_emit_byte (mb, CEE_LDLEN);
6266 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6268 /* Emit marshalling code */
6272 mono_mb_emit_ldloc (mb, dest_ptr);
6273 mono_mb_emit_ldloc (mb, src_var);
6274 mono_mb_emit_ldloc (mb, index_var);
6275 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6276 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6277 mono_mb_emit_byte (mb, stind_op);
6279 /* set the src_ptr */
6280 mono_mb_emit_ldloc (mb, src_var);
6281 mono_mb_emit_ldloc (mb, index_var);
6282 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6283 mono_mb_emit_stloc (mb, 0);
6286 mono_mb_emit_ldloc (mb, dest_ptr);
6287 mono_mb_emit_stloc (mb, 1);
6289 /* emit valuetype conversion code */
6290 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6293 mono_mb_emit_add_to_local (mb, index_var, 1);
6294 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6296 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6298 mono_mb_patch_branch (mb, label3);
6300 if (eklass == mono_defaults.string_class) {
6301 /* Null terminate */
6302 mono_mb_emit_ldloc (mb, dest_ptr);
6303 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6304 mono_mb_emit_byte (mb, CEE_STIND_REF);
6307 mono_mb_patch_branch (mb, label1);
6312 case MARSHAL_ACTION_CONV_OUT:
6313 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6314 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);
6315 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6318 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6319 int param_num = spec->data.array_data.param_num;
6320 MonoType *param_type;
6322 param_type = m->sig->params [param_num];
6324 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6325 char *msg = g_strdup ("Not implemented.");
6326 mono_mb_emit_exception_marshal_directive (mb, msg);
6331 mono_mb_emit_ldarg (mb, argnum);
6333 /* Create the managed array */
6334 mono_mb_emit_ldarg (mb, param_num);
6335 if (m->sig->params [param_num]->byref)
6336 // FIXME: Support other types
6337 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6338 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6339 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6340 /* Store into argument */
6341 mono_mb_emit_byte (mb, CEE_STIND_REF);
6345 if (need_convert || need_free) {
6346 /* FIXME: Optimize blittable case */
6348 guint32 label1, label2, label3;
6349 int index_var, src_ptr, loc, esize;
6351 eklass = klass->element_class;
6352 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6353 esize = sizeof (gpointer);
6354 else if (eklass == mono_defaults.char_class)
6355 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6357 esize = mono_class_native_size (eklass, NULL);
6358 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6359 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6362 mono_mb_emit_ldarg (mb, argnum);
6364 mono_mb_emit_byte (mb, CEE_LDIND_I);
6365 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6367 mono_mb_emit_ldloc (mb, conv_arg);
6368 mono_mb_emit_stloc (mb, src_ptr);
6370 /* Emit marshalling loop */
6371 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6372 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6373 mono_mb_emit_stloc (mb, index_var);
6374 label2 = mono_mb_get_label (mb);
6375 mono_mb_emit_ldloc (mb, index_var);
6376 mono_mb_emit_ldarg (mb, argnum);
6378 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6379 mono_mb_emit_byte (mb, CEE_LDLEN);
6380 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6382 /* Emit marshalling code */
6384 if (eklass == mono_defaults.stringbuilder_class) {
6385 gboolean need_free2;
6386 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6388 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6391 mono_mb_emit_ldarg (mb, argnum);
6393 mono_mb_emit_byte (mb, CEE_LDIND_I);
6394 mono_mb_emit_ldloc (mb, index_var);
6395 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6398 mono_mb_emit_ldloc (mb, src_ptr);
6399 mono_mb_emit_byte (mb, CEE_LDIND_I);
6401 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
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);
6411 else if (eklass == mono_defaults.string_class) {
6414 mono_mb_emit_ldloc (mb, src_ptr);
6415 mono_mb_emit_byte (mb, CEE_LDIND_I);
6417 mono_mb_emit_icall (mb, mono_marshal_free);
6422 /* set the src_ptr */
6423 mono_mb_emit_ldloc (mb, src_ptr);
6424 mono_mb_emit_stloc (mb, 0);
6427 mono_mb_emit_ldarg (mb, argnum);
6429 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6430 mono_mb_emit_ldloc (mb, index_var);
6431 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6432 mono_mb_emit_stloc (mb, 1);
6434 /* emit valuetype conversion code */
6435 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6439 mono_mb_emit_ldloc (mb, src_ptr);
6440 mono_mb_emit_stloc (mb, loc);
6441 mono_mb_emit_ldloc (mb, loc);
6443 emit_struct_free (mb, eklass, loc);
6447 mono_mb_emit_add_to_local (mb, index_var, 1);
6448 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6450 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6452 mono_mb_patch_branch (mb, label1);
6453 mono_mb_patch_branch (mb, label3);
6456 if (klass->element_class->blittable) {
6457 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6459 mono_mb_emit_ldarg (mb, argnum);
6461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6462 mono_mb_emit_ldloc (mb, conv_arg);
6463 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6468 case MARSHAL_ACTION_PUSH:
6470 mono_mb_emit_ldloc_addr (mb, conv_arg);
6472 mono_mb_emit_ldloc (mb, conv_arg);
6475 case MARSHAL_ACTION_CONV_RESULT:
6476 /* fixme: we need conversions here */
6477 mono_mb_emit_stloc (mb, 3);
6480 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6482 guint32 label1, label2, label3;
6483 int index_var, src_ptr, esize, param_num, num_elem;
6484 MonoMarshalConv conv;
6485 gboolean is_string = FALSE;
6487 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6488 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6491 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6492 mono_mb_emit_exception_marshal_directive (mb, msg);
6496 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6497 mono_mb_emit_exception_marshal_directive (mb, msg);
6500 if (spec->native != MONO_NATIVE_LPARRAY) {
6501 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6502 mono_mb_emit_exception_marshal_directive (mb, msg);
6506 /* FIXME: t is from the method which is wrapped, not the delegate type */
6507 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6509 param_num = spec->data.array_data.param_num;
6510 num_elem = spec->data.array_data.num_elem;
6511 if (spec->data.array_data.elem_mult == 0)
6512 /* param_num is not specified */
6515 if (param_num == -1) {
6516 if (num_elem <= 0) {
6517 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6518 mono_mb_emit_exception_marshal_directive (mb, msg);
6523 /* FIXME: Optimize blittable case */
6525 eklass = klass->element_class;
6526 if (eklass == mono_defaults.string_class) {
6528 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6530 else if (eklass == mono_defaults.stringbuilder_class) {
6532 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6535 conv = MONO_MARSHAL_CONV_INVALID;
6537 mono_marshal_load_type_info (eklass);
6540 esize = sizeof (gpointer);
6542 esize = mono_class_native_size (eklass, NULL);
6543 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6545 mono_mb_emit_byte (mb, CEE_LDNULL);
6546 mono_mb_emit_stloc (mb, conv_arg);
6548 /* Check param index */
6549 if (param_num != -1) {
6550 if (param_num >= m->sig->param_count) {
6551 char *msg = g_strdup ("Array size control parameter index is out of range.");
6552 mono_mb_emit_exception_marshal_directive (mb, msg);
6555 switch (m->sig->params [param_num]->type) {
6568 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6569 mono_mb_emit_exception_marshal_directive (mb, msg);
6576 mono_mb_emit_ldarg (mb, argnum);
6577 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6579 mono_mb_emit_ldarg (mb, argnum);
6580 mono_mb_emit_stloc (mb, src_ptr);
6582 /* Create managed array */
6584 * The LPArray marshalling spec says that sometimes param_num starts
6585 * from 1, sometimes it starts from 0. But MS seems to allways start
6589 if (param_num == -1) {
6590 mono_mb_emit_icon (mb, num_elem);
6592 mono_mb_emit_ldarg (mb, param_num);
6594 mono_mb_emit_icon (mb, num_elem);
6595 mono_mb_emit_byte (mb, CEE_ADD);
6597 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6600 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6601 mono_mb_emit_stloc (mb, conv_arg);
6603 if (eklass->blittable) {
6604 mono_mb_emit_ldloc (mb, conv_arg);
6605 mono_mb_emit_byte (mb, CEE_CONV_I);
6606 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6607 mono_mb_emit_byte (mb, CEE_ADD);
6608 mono_mb_emit_ldarg (mb, argnum);
6609 mono_mb_emit_ldloc (mb, conv_arg);
6610 mono_mb_emit_byte (mb, CEE_LDLEN);
6611 mono_mb_emit_icon (mb, esize);
6612 mono_mb_emit_byte (mb, CEE_MUL);
6613 mono_mb_emit_byte (mb, CEE_PREFIX1);
6614 mono_mb_emit_byte (mb, CEE_CPBLK);
6618 /* Emit marshalling loop */
6619 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6620 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6621 mono_mb_emit_stloc (mb, index_var);
6622 label2 = mono_mb_get_label (mb);
6623 mono_mb_emit_ldloc (mb, index_var);
6624 mono_mb_emit_ldloc (mb, conv_arg);
6625 mono_mb_emit_byte (mb, CEE_LDLEN);
6626 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6628 /* Emit marshalling code */
6630 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6632 mono_mb_emit_ldloc (mb, conv_arg);
6633 mono_mb_emit_ldloc (mb, index_var);
6635 mono_mb_emit_ldloc (mb, src_ptr);
6636 mono_mb_emit_byte (mb, CEE_LDIND_I);
6638 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6639 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6642 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6643 mono_mb_emit_exception_marshal_directive (mb, msg);
6647 mono_mb_emit_add_to_local (mb, index_var, 1);
6648 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6650 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6652 mono_mb_patch_branch (mb, label1);
6653 mono_mb_patch_branch (mb, label3);
6657 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6659 guint32 label1, label2, label3;
6660 int index_var, dest_ptr, esize, param_num, num_elem;
6661 MonoMarshalConv conv;
6662 gboolean is_string = FALSE;
6665 /* Already handled in CONV_IN */
6668 /* These are already checked in CONV_IN */
6669 g_assert (!t->byref);
6670 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6671 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6673 param_num = spec->data.array_data.param_num;
6674 num_elem = spec->data.array_data.num_elem;
6676 if (spec->data.array_data.elem_mult == 0)
6677 /* param_num is not specified */
6680 if (param_num == -1) {
6681 if (num_elem <= 0) {
6682 g_assert_not_reached ();
6686 /* FIXME: Optimize blittable case */
6688 eklass = klass->element_class;
6689 if (eklass == mono_defaults.string_class) {
6691 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6693 else if (eklass == mono_defaults.stringbuilder_class) {
6695 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6698 conv = MONO_MARSHAL_CONV_INVALID;
6700 mono_marshal_load_type_info (eklass);
6703 esize = sizeof (gpointer);
6705 esize = mono_class_native_size (eklass, NULL);
6707 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6710 mono_mb_emit_ldloc (mb, conv_arg);
6711 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6713 mono_mb_emit_ldarg (mb, argnum);
6714 mono_mb_emit_stloc (mb, dest_ptr);
6716 if (eklass->blittable) {
6718 mono_mb_emit_ldarg (mb, argnum);
6720 mono_mb_emit_ldloc (mb, conv_arg);
6721 mono_mb_emit_byte (mb, CEE_CONV_I);
6722 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6723 mono_mb_emit_byte (mb, CEE_ADD);
6725 mono_mb_emit_ldloc (mb, conv_arg);
6726 mono_mb_emit_byte (mb, CEE_LDLEN);
6727 mono_mb_emit_icon (mb, esize);
6728 mono_mb_emit_byte (mb, CEE_MUL);
6729 mono_mb_emit_byte (mb, CEE_PREFIX1);
6730 mono_mb_emit_byte (mb, CEE_CPBLK);
6734 /* Emit marshalling loop */
6735 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6736 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6737 mono_mb_emit_stloc (mb, index_var);
6738 label2 = mono_mb_get_label (mb);
6739 mono_mb_emit_ldloc (mb, index_var);
6740 mono_mb_emit_ldloc (mb, conv_arg);
6741 mono_mb_emit_byte (mb, CEE_LDLEN);
6742 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6744 /* Emit marshalling code */
6747 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6750 mono_mb_emit_ldloc (mb, dest_ptr);
6753 mono_mb_emit_ldloc (mb, conv_arg);
6754 mono_mb_emit_ldloc (mb, index_var);
6756 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6758 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6759 mono_mb_emit_byte (mb, stind_op);
6762 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6763 mono_mb_emit_exception_marshal_directive (mb, msg);
6767 mono_mb_emit_add_to_local (mb, index_var, 1);
6768 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6770 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6772 mono_mb_patch_branch (mb, label1);
6773 mono_mb_patch_branch (mb, label3);
6777 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6779 guint32 label1, label2, label3;
6780 int index_var, src, dest, esize;
6781 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6782 gboolean is_string = FALSE;
6784 g_assert (!t->byref);
6786 eklass = klass->element_class;
6788 mono_marshal_load_type_info (eklass);
6790 if (eklass == mono_defaults.string_class) {
6792 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6795 g_assert_not_reached ();
6799 esize = sizeof (gpointer);
6800 else if (eklass == mono_defaults.char_class)
6801 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6803 esize = mono_class_native_size (eklass, NULL);
6805 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6806 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6808 mono_mb_emit_stloc (mb, src);
6809 mono_mb_emit_ldloc (mb, src);
6810 mono_mb_emit_stloc (mb, 3);
6812 /* Check for null */
6813 mono_mb_emit_ldloc (mb, src);
6814 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6816 /* Allocate native array */
6817 mono_mb_emit_icon (mb, esize);
6818 mono_mb_emit_ldloc (mb, src);
6819 mono_mb_emit_byte (mb, CEE_LDLEN);
6821 if (eklass == mono_defaults.string_class) {
6822 /* Make the array bigger for the terminating null */
6823 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6824 mono_mb_emit_byte (mb, CEE_ADD);
6826 mono_mb_emit_byte (mb, CEE_MUL);
6827 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6828 mono_mb_emit_stloc (mb, dest);
6829 mono_mb_emit_ldloc (mb, dest);
6830 mono_mb_emit_stloc (mb, 3);
6832 /* Emit marshalling loop */
6833 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6834 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6835 mono_mb_emit_stloc (mb, index_var);
6836 label2 = mono_mb_get_label (mb);
6837 mono_mb_emit_ldloc (mb, index_var);
6838 mono_mb_emit_ldloc (mb, src);
6839 mono_mb_emit_byte (mb, CEE_LDLEN);
6840 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6842 /* Emit marshalling code */
6845 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6848 mono_mb_emit_ldloc (mb, dest);
6851 mono_mb_emit_ldloc (mb, src);
6852 mono_mb_emit_ldloc (mb, index_var);
6854 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6856 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6857 mono_mb_emit_byte (mb, stind_op);
6860 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6861 mono_mb_emit_exception_marshal_directive (mb, msg);
6865 mono_mb_emit_add_to_local (mb, index_var, 1);
6866 mono_mb_emit_add_to_local (mb, dest, esize);
6868 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6870 mono_mb_patch_branch (mb, label3);
6871 mono_mb_patch_branch (mb, label1);
6875 g_assert_not_reached ();
6882 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6885 return &mono_defaults.int32_class->byval_arg;
6887 switch (spec->native) {
6888 case MONO_NATIVE_I1:
6889 case MONO_NATIVE_U1:
6890 return &mono_defaults.byte_class->byval_arg;
6891 case MONO_NATIVE_VARIANTBOOL:
6892 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6893 return &mono_defaults.int16_class->byval_arg;
6894 case MONO_NATIVE_BOOLEAN:
6895 return &mono_defaults.int32_class->byval_arg;
6897 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6898 return &mono_defaults.int32_class->byval_arg;
6904 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6906 MonoClass* conv_arg_class = mono_defaults.int32_class;
6908 switch (spec->native) {
6909 case MONO_NATIVE_I1:
6910 case MONO_NATIVE_U1:
6911 conv_arg_class = mono_defaults.byte_class;
6912 if (ldop) *ldop = CEE_LDIND_I1;
6914 case MONO_NATIVE_VARIANTBOOL:
6915 conv_arg_class = mono_defaults.int16_class;
6916 if (ldop) *ldop = CEE_LDIND_I2;
6918 case MONO_NATIVE_BOOLEAN:
6921 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6924 return conv_arg_class;
6928 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6929 MonoMarshalSpec *spec,
6930 int conv_arg, MonoType **conv_arg_type,
6931 MarshalAction action)
6935 case MARSHAL_ACTION_CONV_IN:
6937 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6939 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6942 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6943 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6945 *conv_arg_type = &conv_arg_class->this_arg;
6947 *conv_arg_type = &conv_arg_class->byval_arg;
6953 MonoMethodBuilder *mb = m->mb;
6956 case MARSHAL_ACTION_CONV_IN: {
6957 MonoType *local_type;
6959 guint8 ldc_op = CEE_LDC_I4_1;
6961 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6963 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6965 *conv_arg_type = local_type;
6966 conv_arg = mono_mb_add_local (mb, local_type);
6968 mono_mb_emit_ldarg (mb, argnum);
6970 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6971 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6972 mono_mb_emit_byte (mb, ldc_op);
6973 mono_mb_emit_stloc (mb, conv_arg);
6974 mono_mb_patch_branch (mb, label_false);
6979 case MARSHAL_ACTION_CONV_OUT:
6981 int label_false, label_end;
6985 mono_mb_emit_ldarg (mb, argnum);
6986 mono_mb_emit_ldloc (mb, conv_arg);
6988 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6989 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6991 label_end = mono_mb_emit_branch (mb, CEE_BR);
6992 mono_mb_patch_branch (mb, label_false);
6993 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6994 mono_mb_patch_branch (mb, label_end);
6996 mono_mb_emit_byte (mb, CEE_STIND_I1);
7000 case MARSHAL_ACTION_PUSH:
7002 mono_mb_emit_ldloc_addr (mb, conv_arg);
7004 mono_mb_emit_ldloc (mb, conv_arg);
7006 mono_mb_emit_ldarg (mb, argnum);
7009 case MARSHAL_ACTION_CONV_RESULT:
7010 /* maybe we need to make sure that it fits within 8 bits */
7011 mono_mb_emit_stloc (mb, 3);
7014 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7015 MonoClass* conv_arg_class = mono_defaults.int32_class;
7016 guint8 ldop = CEE_LDIND_I4;
7017 int label_null, label_false;
7019 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7020 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7023 *conv_arg_type = &conv_arg_class->this_arg;
7025 *conv_arg_type = &conv_arg_class->byval_arg;
7028 mono_mb_emit_ldarg (mb, argnum);
7032 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7033 mono_mb_emit_ldarg (mb, argnum);
7034 mono_mb_emit_byte (mb, ldop);
7038 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7039 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7040 mono_mb_emit_stloc (mb, conv_arg);
7041 mono_mb_patch_branch (mb, label_false);
7044 mono_mb_patch_branch (mb, label_null);
7048 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7049 guint8 stop = CEE_STIND_I4;
7050 guint8 ldc_op = CEE_LDC_I4_1;
7051 int label_null,label_false, label_end;;
7056 switch (spec->native) {
7057 case MONO_NATIVE_I1:
7058 case MONO_NATIVE_U1:
7059 stop = CEE_STIND_I1;
7061 case MONO_NATIVE_VARIANTBOOL:
7062 stop = CEE_STIND_I2;
7063 ldc_op = CEE_LDC_I4_M1;
7071 mono_mb_emit_ldarg (mb, argnum);
7072 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7074 mono_mb_emit_ldarg (mb, argnum);
7075 mono_mb_emit_ldloc (mb, conv_arg);
7077 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7078 mono_mb_emit_byte (mb, ldc_op);
7079 label_end = mono_mb_emit_branch (mb, CEE_BR);
7081 mono_mb_patch_branch (mb, label_false);
7082 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7083 mono_mb_patch_branch (mb, label_end);
7085 mono_mb_emit_byte (mb, stop);
7086 mono_mb_patch_branch (mb, label_null);
7091 g_assert_not_reached ();
7098 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7099 MonoMarshalSpec *spec, int conv_arg,
7100 MonoType **conv_arg_type, MarshalAction action)
7103 MonoMethodBuilder *mb = m->mb;
7106 case MARSHAL_ACTION_CONV_IN:
7107 /* MS seems to allow this in some cases, ie. bxc #158 */
7109 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7110 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7111 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7116 case MARSHAL_ACTION_PUSH:
7117 mono_mb_emit_ldarg (mb, argnum);
7120 case MARSHAL_ACTION_CONV_RESULT:
7121 /* no conversions necessary */
7122 mono_mb_emit_stloc (mb, 3);
7133 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7134 MonoMarshalSpec *spec, int conv_arg,
7135 MonoType **conv_arg_type, MarshalAction action)
7138 MonoMethodBuilder *mb = m->mb;
7141 case MARSHAL_ACTION_PUSH:
7142 /* fixme: dont know how to marshal that. We cant simply
7143 * convert it to a one byte UTF8 character, because an
7144 * unicode character may need more that one byte in UTF8 */
7145 mono_mb_emit_ldarg (mb, argnum);
7148 case MARSHAL_ACTION_CONV_RESULT:
7149 /* fixme: we need conversions here */
7150 mono_mb_emit_stloc (mb, 3);
7161 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7162 MonoMarshalSpec *spec, int conv_arg,
7163 MonoType **conv_arg_type, MarshalAction action)
7166 MonoMethodBuilder *mb = m->mb;
7169 case MARSHAL_ACTION_PUSH:
7170 mono_mb_emit_ldarg (mb, argnum);
7173 case MARSHAL_ACTION_CONV_RESULT:
7174 /* no conversions necessary */
7175 mono_mb_emit_stloc (mb, 3);
7186 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7187 MonoMarshalSpec *spec, int conv_arg,
7188 MonoType **conv_arg_type, MarshalAction action)
7190 /* Ensure that we have marshalling info for this param */
7191 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7193 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7194 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7196 if (spec && spec->native == MONO_NATIVE_ASANY)
7197 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7200 case MONO_TYPE_VALUETYPE:
7201 if (t->data.klass == mono_defaults.handleref_class)
7202 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7204 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7205 case MONO_TYPE_STRING:
7206 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7207 case MONO_TYPE_CLASS:
7208 case MONO_TYPE_OBJECT:
7209 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7210 if (spec && spec->native == MONO_NATIVE_STRUCT)
7211 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7214 #if !defined(DISABLE_COM)
7215 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7216 spec->native == MONO_NATIVE_IDISPATCH ||
7217 spec->native == MONO_NATIVE_INTERFACE))
7218 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7219 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7220 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7221 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7222 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7225 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7226 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7227 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7229 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7230 case MONO_TYPE_ARRAY:
7231 case MONO_TYPE_SZARRAY:
7232 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7233 case MONO_TYPE_BOOLEAN:
7234 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7236 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7237 case MONO_TYPE_CHAR:
7238 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 case MONO_TYPE_FNPTR:
7252 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7253 case MONO_TYPE_GENERICINST:
7254 if (mono_type_generic_inst_is_valuetype (t))
7255 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7257 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7265 * mono_marshal_emit_native_wrapper:
7266 * @image: the image to use for looking up custom marshallers
7267 * @sig: The signature of the native function
7268 * @piinfo: Marshalling information
7269 * @mspecs: Marshalling information
7270 * @aot: whenever the created method will be compiled by the AOT compiler
7271 * @method: if non-NULL, the pinvoke method to call
7272 * @check_exceptions: Whenever to check for pending exceptions after the native call
7273 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7275 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7278 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)
7280 EmitMarshalContext m;
7281 MonoMethodSignature *csig;
7283 int i, argnum, *tmp_locals;
7284 int type, param_shift = 0;
7285 static MonoMethodSignature *get_last_error_sig = NULL;
7286 int coop_gc_stack_dummy, coop_gc_var;
7288 memset (&m, 0, sizeof (m));
7293 /* we copy the signature, so that we can set pinvoke to 0 */
7295 /* The function address is passed as the first argument */
7296 g_assert (!sig->hasthis);
7299 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7307 /* we allocate local for use with emit_struct_conv() */
7308 /* allocate local 0 (pointer) src_ptr */
7309 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7310 /* allocate local 1 (pointer) dst_ptr */
7311 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7312 /* allocate local 2 (boolean) delete_old */
7313 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7315 /* delete_old = FALSE */
7316 mono_mb_emit_icon (mb, 0);
7317 mono_mb_emit_stloc (mb, 2);
7319 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7320 /* allocate local 3 to store the return value */
7321 mono_mb_add_local (mb, sig->ret);
7324 if (mono_threads_is_coop_enabled ()) {
7325 /* local 4, dummy local used to get a stack address for suspend funcs */
7326 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7327 /* local 5, the local to be used when calling the suspend funcs */
7328 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7332 * cookie = mono_threads_prepare_blocking_unbalanced (ref dummy);
7334 * ret = method (...);
7336 * mono_threads_finish_blocking_unbalanced (cookie, ref dummy);
7343 if (MONO_TYPE_ISSTRUCT (sig->ret))
7344 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7346 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7347 /* Return type custom marshaling */
7349 * Since we can't determine the return type of the unmanaged function,
7350 * we assume it returns a pointer, and pass that pointer to
7351 * MarshalNativeToManaged.
7353 csig->ret = &mono_defaults.int_class->byval_arg;
7356 /* we first do all conversions */
7357 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7358 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7360 for (i = 0; i < sig->param_count; i ++) {
7361 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7364 // In coop mode need to register blocking state during native call
7365 if (mono_threads_is_coop_enabled ()) {
7366 // Perform an extra, early lookup of the function address, so any exceptions
7367 // potentially resulting from the lookup occur before entering blocking mode.
7368 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7369 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7370 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7371 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7374 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7375 mono_mb_emit_icall (mb, mono_threads_prepare_blocking_unbalanced);
7376 mono_mb_emit_stloc (mb, coop_gc_var);
7379 /* push all arguments */
7382 mono_mb_emit_byte (mb, CEE_LDARG_0);
7384 for (i = 0; i < sig->param_count; i++) {
7385 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7388 /* call the native method */
7390 mono_mb_emit_byte (mb, CEE_LDARG_0);
7391 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7392 mono_mb_emit_byte (mb, CEE_LDIND_I);
7393 mono_mb_emit_calli (mb, csig);
7394 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7396 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7398 g_assert_not_reached ();
7402 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7404 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7405 mono_mb_emit_calli (mb, csig);
7407 mono_mb_emit_native_call (mb, csig, func);
7411 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7412 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7413 mono_class_init (klass);
7414 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7415 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7416 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7417 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7418 mono_mb_emit_stloc (mb, m.vtaddr_var);
7422 /* Unblock before converting the result, since that can involve calls into the runtime */
7423 if (mono_threads_is_coop_enabled ()) {
7424 mono_mb_emit_ldloc (mb, coop_gc_var);
7425 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7426 mono_mb_emit_icall (mb, mono_threads_finish_blocking_unbalanced);
7429 /* Set LastError if needed */
7430 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7431 if (!get_last_error_sig) {
7432 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7433 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7434 get_last_error_sig->pinvoke = 1;
7439 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7440 * clobber its value.
7442 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7443 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7445 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7449 /* convert the result */
7450 if (!sig->ret->byref) {
7451 MonoMarshalSpec *spec = mspecs [0];
7452 type = sig->ret->type;
7454 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7455 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7459 case MONO_TYPE_VOID:
7461 case MONO_TYPE_VALUETYPE:
7462 klass = sig->ret->data.klass;
7463 if (klass->enumtype) {
7464 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7467 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7481 case MONO_TYPE_FNPTR:
7482 case MONO_TYPE_STRING:
7483 case MONO_TYPE_CLASS:
7484 case MONO_TYPE_OBJECT:
7485 case MONO_TYPE_BOOLEAN:
7486 case MONO_TYPE_ARRAY:
7487 case MONO_TYPE_SZARRAY:
7488 case MONO_TYPE_CHAR:
7490 case MONO_TYPE_GENERICINST:
7491 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7493 case MONO_TYPE_TYPEDBYREF:
7495 g_warning ("return type 0x%02x unknown", sig->ret->type);
7496 g_assert_not_reached ();
7500 mono_mb_emit_stloc (mb, 3);
7504 * Need to call this after converting the result since MONO_VTADDR needs
7505 * to be adjacent to the call instruction.
7507 if (check_exceptions)
7508 emit_thread_interrupt_checkpoint (mb);
7510 /* we need to convert byref arguments back and free string arrays */
7511 for (i = 0; i < sig->param_count; i++) {
7512 MonoType *t = sig->params [i];
7513 MonoMarshalSpec *spec = mspecs [i + 1];
7515 argnum = i + param_shift;
7517 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7518 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7523 case MONO_TYPE_STRING:
7524 case MONO_TYPE_VALUETYPE:
7525 case MONO_TYPE_CLASS:
7526 case MONO_TYPE_OBJECT:
7527 case MONO_TYPE_SZARRAY:
7528 case MONO_TYPE_BOOLEAN:
7529 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7536 if (!MONO_TYPE_IS_VOID(sig->ret))
7537 mono_mb_emit_ldloc (mb, 3);
7539 mono_mb_emit_byte (mb, CEE_RET);
7541 #endif /* DISABLE_JIT */
7544 * mono_marshal_get_native_wrapper:
7545 * @method: The MonoMethod to wrap.
7546 * @check_exceptions: Whenever to check for pending exceptions
7548 * generates IL code for the pinvoke wrapper (the generated method
7549 * calls the unmanaged code in piinfo->addr)
7550 * The wrapper info for the wrapper is a WrapperInfo structure.
7553 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7555 MonoMethodSignature *sig, *csig;
7556 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7557 MonoMethodBuilder *mb;
7558 MonoMarshalSpec **mspecs;
7561 gboolean pinvoke = FALSE;
7564 const char *exc_class = "MissingMethodException";
7565 const char *exc_arg = NULL;
7568 g_assert (method != NULL);
7569 g_assert (mono_method_signature (method)->pinvoke);
7571 GHashTable **cache_ptr;
7574 if (check_exceptions)
7575 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7577 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7579 if (check_exceptions)
7580 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7582 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7585 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7587 if ((res = mono_marshal_find_in_cache (cache, method)))
7590 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7591 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7595 return mono_cominterop_get_native_wrapper (method);
7597 g_assert_not_reached ();
7601 sig = mono_method_signature (method);
7603 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7604 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7607 if (!piinfo->addr) {
7609 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7610 exc_arg = "Method contains unsupported native code";
7612 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7614 piinfo->addr = mono_lookup_internal_call (method);
7618 /* hack - redirect certain string constructors to CreateString */
7619 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7620 g_assert (!pinvoke);
7621 g_assert (method->string_ctor);
7622 g_assert (sig->hasthis);
7624 /* CreateString returns a value */
7625 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7626 csig->ret = &mono_defaults.string_class->byval_arg;
7630 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7631 if (!strcmp ("CreateString", res->name) &&
7632 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7635 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7636 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7638 /* create a wrapper to preserve .ctor in stack trace */
7639 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7642 mono_mb_emit_byte (mb, CEE_LDARG_0);
7643 for (i = 1; i <= csig->param_count; i++)
7644 mono_mb_emit_ldarg (mb, i);
7645 mono_mb_emit_managed_call (mb, res, NULL);
7646 mono_mb_emit_byte (mb, CEE_RET);
7649 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7650 info->d.string_ctor.method = method;
7652 /* use native_wrapper_cache because internal calls are looked up there */
7653 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7654 csig->param_count + 1, info, NULL);
7661 /* exception will be thrown */
7662 piinfo->addr = NULL;
7663 g_warning ("cannot find CreateString for .ctor");
7666 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7668 mb->method->save_lmf = 1;
7671 * In AOT mode and embedding scenarios, it is possible that the icall is not
7672 * registered in the runtime doing the AOT compilation.
7674 if (!piinfo->addr && !aot) {
7676 mono_mb_emit_exception (mb, exc_class, exc_arg);
7678 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7679 info->d.managed_to_native.method = method;
7681 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7683 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7684 csig->param_count + 16, info, NULL);
7690 /* internal calls: we simply push all arguments and call the method (no conversions) */
7691 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7693 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7695 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7697 /* hack - string constructors returns a value */
7698 if (method->string_ctor)
7699 csig->ret = &mono_defaults.string_class->byval_arg;
7706 * Add a null check since public icalls can be called with 'call' which
7707 * does no such check.
7709 mono_mb_emit_byte (mb, CEE_LDARG_0);
7710 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7711 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7712 mono_mb_patch_branch (mb, pos);
7714 mono_mb_emit_byte (mb, CEE_LDARG_0);
7717 for (i = 0; i < sig->param_count; i++)
7718 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7722 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7723 mono_mb_emit_calli (mb, csig);
7725 g_assert (piinfo->addr);
7726 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7728 if (check_exceptions)
7729 emit_thread_interrupt_checkpoint (mb);
7730 mono_mb_emit_byte (mb, CEE_RET);
7732 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7733 info->d.managed_to_native.method = method;
7735 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7737 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7746 g_assert (piinfo->addr);
7749 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7750 mono_method_get_marshal_info (method, mspecs);
7752 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7754 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7755 info->d.managed_to_native.method = method;
7757 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7759 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7764 for (i = sig->param_count; i >= 0; i--)
7766 mono_metadata_free_marshal_spec (mspecs [i]);
7770 /* mono_method_print_code (res); */
7776 * mono_marshal_get_native_func_wrapper:
7777 * @image: The image to use for memory allocation and for looking up custom marshallers.
7778 * @sig: The signature of the function
7779 * @func: The native function to wrap
7781 * Returns a wrapper method around native functions, similar to the pinvoke
7785 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7786 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7788 MonoMethodSignature *csig;
7790 SignaturePointerPair key, *new_key;
7791 MonoMethodBuilder *mb;
7800 // Generic types are not safe to place in MonoImage caches.
7801 g_assert (!sig->is_inflated);
7803 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7804 if ((res = mono_marshal_find_in_cache (cache, &key)))
7807 name = g_strdup_printf ("wrapper_native_%p", func);
7808 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7809 mb->method->save_lmf = 1;
7812 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7815 csig = mono_metadata_signature_dup_full (image, sig);
7818 new_key = g_new (SignaturePointerPair,1);
7819 new_key->sig = csig;
7820 new_key->pointer = func;
7822 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7828 mono_marshal_set_wrapper_info (res, NULL);
7834 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7838 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7840 MonoMethodSignature *sig, *csig;
7841 MonoMethodBuilder *mb;
7846 MonoMethodPInvoke mpiinfo;
7847 MonoMethodPInvoke *piinfo = &mpiinfo;
7848 MonoMarshalSpec **mspecs;
7849 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7850 MonoImage *image = invoke->klass->image;
7853 // FIXME: include UnmanagedFunctionPointerAttribute info
7856 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7858 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7860 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7863 memset (&mpiinfo, 0, sizeof (mpiinfo));
7864 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7866 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7867 mono_method_get_marshal_info (invoke, mspecs);
7868 /* Freed below so don't alloc from mempool */
7869 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7872 name = g_strdup_printf ("wrapper_aot_native");
7873 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7874 mb->method->save_lmf = 1;
7877 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7880 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7881 info->d.managed_to_native.method = invoke;
7883 g_assert (!sig->hasthis);
7884 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7886 res = mono_mb_create_and_cache_full (cache, invoke,
7887 mb, csig, csig->param_count + 16,
7891 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7893 mono_metadata_free_marshal_spec (mspecs [i]);
7901 * mono_marshal_emit_managed_wrapper:
7903 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7904 * the delegate which wraps the managed method to be called. For closed delegates,
7905 * it could have fewer parameters than the method it wraps.
7906 * THIS_LOC is the memory location where the target of the delegate is stored.
7909 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7912 MonoMethodSignature *sig, *csig;
7918 /* we first do all conversions */
7919 for (i = 0; i < sig->param_count; i ++) {
7920 MonoType *t = sig->params [i];
7923 case MONO_TYPE_OBJECT:
7924 case MONO_TYPE_CLASS:
7925 case MONO_TYPE_VALUETYPE:
7926 case MONO_TYPE_ARRAY:
7927 case MONO_TYPE_SZARRAY:
7928 case MONO_TYPE_STRING:
7929 case MONO_TYPE_BOOLEAN:
7930 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7934 if (!sig->ret->byref) {
7935 switch (sig->ret->type) {
7936 case MONO_TYPE_STRING:
7937 csig->ret = &mono_defaults.int_class->byval_arg;
7944 MonoMethodSignature *sig, *csig;
7945 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7946 int i, *tmp_locals, ex_local, e_local;
7947 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7948 gboolean closed = FALSE;
7953 /* allocate local 0 (pointer) src_ptr */
7954 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7955 /* allocate local 1 (pointer) dst_ptr */
7956 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7957 /* allocate local 2 (boolean) delete_old */
7958 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7960 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7961 /* Closed delegate */
7962 g_assert (sig->param_count == invoke_sig->param_count + 1);
7964 /* Use a new signature without the first argument */
7965 sig = mono_metadata_signature_dup (sig);
7966 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7967 sig->param_count --;
7970 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7971 /* allocate local 3 to store the return value */
7972 mono_mb_add_local (mb, sig->ret);
7975 if (MONO_TYPE_ISSTRUCT (sig->ret))
7976 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7978 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
7979 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
7984 * mono_jit_attach ();
7988 * ret = method (...);
7989 * } catch (Exception e) {
7990 * ex = mono_gchandle_new (e, false);
7992 * mono_jit_detach ();
7995 * mono_marshal_ftnptr_eh_callback (ex);
8001 clauses = g_new0 (MonoExceptionClause, 2);
8003 clause_catch = &clauses [0];
8004 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8005 clause_catch->data.catch_class = mono_defaults.exception_class;
8007 clause_finally = &clauses [1];
8008 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8010 mono_mb_emit_icon (mb, 0);
8011 mono_mb_emit_stloc (mb, 2);
8013 mono_mb_emit_icon (mb, -1);
8014 mono_mb_emit_byte (mb, CEE_CONV_U4);
8015 mono_mb_emit_stloc (mb, ex_local);
8018 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8021 * Might need to attach the thread to the JIT or change the
8022 * domain for the callback.
8024 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8026 * mono_jit_attach ();
8028 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8029 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8031 /* <interrupt check> */
8032 emit_thread_interrupt_checkpoint (mb);
8034 /* we first do all conversions */
8035 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8036 for (i = 0; i < sig->param_count; i ++) {
8037 MonoType *t = sig->params [i];
8040 case MONO_TYPE_OBJECT:
8041 case MONO_TYPE_CLASS:
8042 case MONO_TYPE_VALUETYPE:
8043 case MONO_TYPE_ARRAY:
8044 case MONO_TYPE_SZARRAY:
8045 case MONO_TYPE_STRING:
8046 case MONO_TYPE_BOOLEAN:
8047 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8057 if (target_handle) {
8058 mono_mb_emit_icon (mb, (gint32)target_handle);
8059 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8062 g_assert_not_reached ();
8064 } else if (closed) {
8065 mono_mb_emit_icon (mb, (gint32)target_handle);
8066 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8069 for (i = 0; i < sig->param_count; i++) {
8070 MonoType *t = sig->params [i];
8072 if (tmp_locals [i]) {
8074 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8076 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8079 mono_mb_emit_ldarg (mb, i);
8082 /* ret = method (...) */
8083 mono_mb_emit_managed_call (mb, method, NULL);
8085 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8086 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8087 mono_class_init (klass);
8088 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8089 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8090 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8091 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8092 mono_mb_emit_stloc (mb, m->vtaddr_var);
8096 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8097 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8098 } else if (!sig->ret->byref) {
8099 switch (sig->ret->type) {
8100 case MONO_TYPE_VOID:
8102 case MONO_TYPE_BOOLEAN:
8105 case MONO_TYPE_CHAR:
8117 case MONO_TYPE_OBJECT:
8118 mono_mb_emit_stloc (mb, 3);
8120 case MONO_TYPE_STRING:
8121 csig->ret = &mono_defaults.int_class->byval_arg;
8122 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8124 case MONO_TYPE_VALUETYPE:
8125 case MONO_TYPE_CLASS:
8126 case MONO_TYPE_SZARRAY:
8127 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8130 g_warning ("return type 0x%02x unknown", sig->ret->type);
8131 g_assert_not_reached ();
8134 mono_mb_emit_stloc (mb, 3);
8137 /* Convert byref arguments back */
8138 for (i = 0; i < sig->param_count; i ++) {
8139 MonoType *t = sig->params [i];
8140 MonoMarshalSpec *spec = mspecs [i + 1];
8142 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8143 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8145 else if (t->byref) {
8147 case MONO_TYPE_CLASS:
8148 case MONO_TYPE_VALUETYPE:
8149 case MONO_TYPE_OBJECT:
8150 case MONO_TYPE_STRING:
8151 case MONO_TYPE_BOOLEAN:
8152 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8158 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8159 /* The [Out] information is encoded in the delegate signature */
8161 case MONO_TYPE_SZARRAY:
8162 case MONO_TYPE_CLASS:
8163 case MONO_TYPE_VALUETYPE:
8164 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8167 g_assert_not_reached ();
8172 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8176 /* catch (Exception e) { */
8177 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8178 clause_catch->handler_offset = mono_mb_get_label (mb);
8180 mono_mb_emit_stloc (mb, e_local);
8182 /* ex = mono_gchandle_new (e, false); */
8183 mono_mb_emit_ldloc (mb, e_local);
8184 mono_mb_emit_icon (mb, 0);
8185 mono_mb_emit_icall (mb, mono_gchandle_new);
8186 mono_mb_emit_stloc (mb, ex_local);
8188 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8191 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8194 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8195 clause_finally->handler_offset = mono_mb_get_label (mb);
8198 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8200 * mono_jit_detach ();
8202 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8203 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8206 mono_mb_emit_ldloc (mb, ex_local);
8207 mono_mb_emit_icon (mb, -1);
8208 mono_mb_emit_byte (mb, CEE_CONV_U4);
8209 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8211 /* mono_marshal_ftnptr_eh_callback (ex) */
8212 mono_mb_emit_ldloc (mb, ex_local);
8213 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8216 mono_mb_patch_branch (mb, ex_m1_pos);
8218 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8220 /* } [endfinally] */
8221 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8223 mono_mb_patch_branch (mb, leave_try_pos);
8224 mono_mb_patch_branch (mb, leave_catch_pos);
8227 if (m->retobj_var) {
8228 mono_mb_emit_ldloc (mb, m->retobj_var);
8229 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8230 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8233 if (!MONO_TYPE_IS_VOID(sig->ret))
8234 mono_mb_emit_ldloc (mb, 3);
8235 mono_mb_emit_byte (mb, CEE_RET);
8238 mono_mb_set_clauses (mb, 2, clauses);
8246 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8248 MonoMethodSignature *sig;
8253 * Under windows, delegates passed to native code must use the STDCALL
8254 * calling convention.
8256 csig->call_convention = MONO_CALL_STDCALL;
8259 sig = mono_method_signature (method);
8261 /* Change default calling convention if needed */
8262 /* Why is this a modopt ? */
8263 if (sig->ret && sig->ret->num_mods) {
8264 for (i = 0; i < sig->ret->num_mods; ++i) {
8266 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8267 g_assert (mono_error_ok (&error));
8268 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8269 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8270 csig->call_convention = MONO_CALL_C;
8271 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8272 csig->call_convention = MONO_CALL_STDCALL;
8273 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8274 csig->call_convention = MONO_CALL_FASTCALL;
8275 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8276 csig->call_convention = MONO_CALL_THISCALL;
8283 * generates IL code to call managed methods from unmanaged code
8284 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8287 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8290 MonoMethodSignature *sig, *csig, *invoke_sig;
8291 MonoMethodBuilder *mb;
8292 MonoMethod *res, *invoke;
8293 MonoMarshalSpec **mspecs;
8294 MonoMethodPInvoke piinfo;
8297 EmitMarshalContext m;
8299 g_assert (method != NULL);
8300 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8303 * FIXME: Should cache the method+delegate type pair, since the same method
8304 * could be called with different delegates, thus different marshalling
8307 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8309 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8312 invoke = mono_get_delegate_invoke (delegate_klass);
8313 invoke_sig = mono_method_signature (invoke);
8315 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8316 mono_method_get_marshal_info (invoke, mspecs);
8318 sig = mono_method_signature (method);
8320 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8322 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8323 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8325 /* we copy the signature, so that we can modify it */
8327 /* Need to free this later */
8328 csig = mono_metadata_signature_dup (invoke_sig);
8330 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8334 memset (&m, 0, sizeof (m));
8340 m.image = method->klass->image;
8342 mono_marshal_set_callconv_from_modopt (invoke, csig);
8344 /* The attribute is only available in Net 2.0 */
8345 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8346 MonoCustomAttrInfo *cinfo;
8347 MonoCustomAttrEntry *attr;
8350 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8351 * contents of the attribute without constructing it, as that might not be
8352 * possible when running in cross-compiling mode.
8354 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8355 mono_error_assert_ok (&error);
8358 for (i = 0; i < cinfo->num_attrs; ++i) {
8359 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8360 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8361 attr = &cinfo->attrs [i];
8367 MonoArray *typed_args, *named_args;
8368 CattrNamedArg *arginfo;
8372 MonoBoolean set_last_error = 0;
8375 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8376 g_assert (mono_error_ok (&error));
8377 g_assert (mono_array_length (typed_args) == 1);
8380 o = mono_array_get (typed_args, MonoObject*, 0);
8381 call_conv = *(gint32*)mono_object_unbox (o);
8384 for (i = 0; i < mono_array_length (named_args); ++i) {
8385 CattrNamedArg *narg = &arginfo [i];
8387 o = mono_array_get (named_args, MonoObject*, i);
8389 g_assert (narg->field);
8390 if (!strcmp (narg->field->name, "CharSet")) {
8391 charset = *(gint32*)mono_object_unbox (o);
8392 } else if (!strcmp (narg->field->name, "SetLastError")) {
8393 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8394 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8395 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8396 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8397 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8399 g_assert_not_reached ();
8405 memset (&piinfo, 0, sizeof (piinfo));
8407 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8409 csig->call_convention = call_conv - 1;
8412 if (cinfo && !cinfo->cached)
8413 mono_custom_attrs_free (cinfo);
8416 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8418 if (!target_handle) {
8421 // FIXME: Associate it with the method+delegate_klass pair
8422 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8423 info->d.native_to_managed.method = method;
8424 info->d.native_to_managed.klass = delegate_klass;
8426 res = mono_mb_create_and_cache_full (cache, method,
8427 mb, csig, sig->param_count + 16,
8433 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8437 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8439 mono_metadata_free_marshal_spec (mspecs [i]);
8442 /* mono_method_print_code (res); */
8448 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8452 MonoMethodSignature *sig;
8453 MonoMethodBuilder *mb;
8458 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8460 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8463 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8464 MonoMethodSignature *csig;
8465 MonoMarshalSpec **mspecs;
8466 EmitMarshalContext m;
8468 sig = mono_method_signature (method);
8469 g_assert (!sig->hasthis);
8471 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8472 mono_method_get_marshal_info (method, mspecs);
8474 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8475 csig = mono_metadata_signature_dup_full (image, sig);
8479 memset (&m, 0, sizeof (m));
8487 mono_marshal_set_callconv_from_modopt (method, csig);
8489 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8491 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8496 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8499 for (i = sig->param_count; i >= 0; i--)
8501 mono_metadata_free_marshal_spec (mspecs [i]);
8504 return mono_compile_method (method);
8507 sig = mono_method_signature (method);
8508 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8510 param_count = sig->param_count + sig->hasthis;
8512 for (i = 0; i < param_count; i++)
8513 mono_mb_emit_ldarg (mb, i);
8515 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8516 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8518 mono_mb_emit_op (mb, CEE_CALL, method);
8519 mono_mb_emit_byte (mb, CEE_RET);
8524 method = mono_mb_create (mb, sig, param_count, NULL);
8527 return mono_compile_method (method);
8533 * The code directly following this is the cache hit, value positive branch
8535 * This function takes a new method builder with 0 locals and adds two locals
8536 * to create multiple out-branches and the fall through state of having the object
8537 * on the stack after a cache miss
8540 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8541 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8542 MonoMethodBuilder *mb)
8546 /* allocate local 0 (pointer) obj_vtable */
8547 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8548 /* allocate local 1 (pointer) cached_vtable */
8549 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8552 mono_mb_emit_ldarg (mb, obj_arg_position);
8553 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8555 /*obj_vtable = obj->vtable;*/
8556 mono_mb_emit_ldarg (mb, obj_arg_position);
8557 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8558 mono_mb_emit_byte (mb, CEE_LDIND_I);
8559 mono_mb_emit_stloc (mb, 0);
8561 /* cached_vtable = *cache*/
8562 mono_mb_emit_ldarg (mb, cache_arg_position);
8563 mono_mb_emit_byte (mb, CEE_LDIND_I);
8564 mono_mb_emit_stloc (mb, 1);
8566 mono_mb_emit_ldloc (mb, 1);
8567 mono_mb_emit_byte (mb, CEE_LDC_I4);
8568 mono_mb_emit_i4 (mb, ~0x1);
8569 mono_mb_emit_byte (mb, CEE_CONV_I);
8570 mono_mb_emit_byte (mb, CEE_AND);
8571 mono_mb_emit_ldloc (mb, 0);
8572 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8573 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8575 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8576 mono_mb_emit_ldloc (mb, 1);
8577 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8578 mono_mb_emit_byte (mb, CEE_CONV_U);
8579 mono_mb_emit_byte (mb, CEE_AND);
8580 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8581 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8584 mono_mb_patch_branch (mb, cache_miss_pos);
8587 mono_mb_emit_ldarg (mb, obj_arg_position);
8588 mono_mb_emit_ldarg (mb, class_arg_position);
8589 mono_mb_emit_ldarg (mb, cache_arg_position);
8590 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8593 #endif /* DISABLE_JIT */
8596 * This does the equivalent of mono_object_castclass_with_cache.
8597 * The wrapper info for the wrapper is a WrapperInfo structure.
8600 mono_marshal_get_castclass_with_cache (void)
8602 static MonoMethod *cached;
8604 MonoMethodBuilder *mb;
8605 MonoMethodSignature *sig;
8606 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8609 const int obj_arg_position = 0;
8610 const int class_arg_position = 1;
8611 const int cache_arg_position = 2;
8616 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8617 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8618 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8619 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8620 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8621 sig->ret = &mono_defaults.object_class->byval_arg;
8625 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8626 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8627 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8630 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8631 mono_mb_emit_ldarg (mb, obj_arg_position);
8632 mono_mb_emit_byte (mb, CEE_RET);
8635 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8636 mono_mb_patch_branch (mb, invalid_cast_pos);
8637 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8640 mono_mb_patch_branch (mb, return_null_pos);
8641 mono_mb_emit_byte (mb, CEE_LDNULL);
8642 mono_mb_emit_byte (mb, CEE_RET);
8643 #endif /* DISABLE_JIT */
8645 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8646 res = mono_mb_create (mb, sig, 8, info);
8649 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8650 mono_free_method (res);
8651 mono_metadata_free_method_signature (sig);
8659 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8662 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8663 mono_error_raise_exception (&error); /* FIXME don't raise here */
8665 #ifndef DISABLE_REMOTING
8666 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8670 uintptr_t cache_update = (uintptr_t)obj->vtable;
8672 cache_update = cache_update | 0x1;
8674 *cache = cache_update;
8680 * This does the equivalent of mono_object_isinst_with_cache.
8681 * The wrapper info for the wrapper is a WrapperInfo structure.
8684 mono_marshal_get_isinst_with_cache (void)
8686 static MonoMethod *cached;
8688 MonoMethodBuilder *mb;
8689 MonoMethodSignature *sig;
8690 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8693 const int obj_arg_position = 0;
8694 const int class_arg_position = 1;
8695 const int cache_arg_position = 2;
8700 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8701 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8703 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8705 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8707 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8708 sig->ret = &mono_defaults.object_class->byval_arg;
8712 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8713 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8714 // Return the object gotten via the slow path.
8715 mono_mb_emit_byte (mb, CEE_RET);
8718 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8719 mono_mb_patch_branch (mb, return_null_pos);
8720 mono_mb_emit_byte (mb, CEE_LDNULL);
8721 mono_mb_emit_byte (mb, CEE_RET);
8724 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8725 mono_mb_emit_ldarg (mb, obj_arg_position);
8726 mono_mb_emit_byte (mb, CEE_RET);
8729 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8730 res = mono_mb_create (mb, sig, 8, info);
8733 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8734 mono_free_method (res);
8735 mono_metadata_free_method_signature (sig);
8743 * mono_marshal_get_isinst:
8744 * @klass: the type of the field
8746 * This method generates a function which can be used to check if an object is
8747 * an instance of the given type, icluding the case where the object is a proxy.
8748 * The generated function has the following signature:
8749 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8752 mono_marshal_get_isinst (MonoClass *klass)
8754 static MonoMethodSignature *isint_sig = NULL;
8758 int pos_was_ok, pos_end;
8759 #ifndef DISABLE_REMOTING
8760 int pos_end2, pos_failed;
8763 MonoMethodBuilder *mb;
8765 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8766 if ((res = mono_marshal_find_in_cache (cache, klass)))
8770 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8771 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8772 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8773 isint_sig->pinvoke = 0;
8776 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8777 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8780 mb->method->save_lmf = 1;
8783 /* check if the object is a proxy that needs special cast */
8784 mono_mb_emit_ldarg (mb, 0);
8785 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8786 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8788 /* The result of MONO_CISINST can be:
8789 0) the type check succeeded
8790 1) the type check did not succeed
8791 2) a CanCastTo call is needed */
8792 #ifndef DISABLE_REMOTING
8793 mono_mb_emit_byte (mb, CEE_DUP);
8794 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8796 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8797 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8799 /* get the real proxy from the transparent proxy*/
8801 mono_mb_emit_ldarg (mb, 0);
8802 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8803 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8807 mono_mb_patch_branch (mb, pos_failed);
8808 mono_mb_emit_byte (mb, CEE_LDNULL);
8809 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8813 mono_mb_patch_branch (mb, pos_was_ok);
8814 mono_mb_emit_byte (mb, CEE_POP);
8815 mono_mb_emit_ldarg (mb, 0);
8819 mono_mb_patch_branch (mb, pos_end);
8820 mono_mb_patch_branch (mb, pos_end2);
8821 mono_mb_emit_byte (mb, CEE_RET);
8823 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8827 mono_mb_emit_byte (mb, CEE_LDNULL);
8828 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8832 mono_mb_patch_branch (mb, pos_was_ok);
8833 mono_mb_emit_ldarg (mb, 0);
8837 mono_mb_patch_branch (mb, pos_end);
8838 mono_mb_emit_byte (mb, CEE_RET);
8839 #endif /* DISABLE_REMOTING */
8840 #endif /* DISABLE_JIT */
8842 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8843 info->d.proxy.klass = klass;
8844 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8851 * mono_marshal_get_castclass:
8852 * @klass: the type of the field
8854 * This method generates a function which can be used to cast an object to
8855 * an instance of the given type, icluding the case where the object is a proxy.
8856 * The generated function has the following signature:
8857 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8858 * The wrapper info for the wrapper is a WrapperInfo structure.
8861 mono_marshal_get_castclass (MonoClass *klass)
8863 static MonoMethodSignature *castclass_sig = NULL;
8866 #ifndef DISABLE_REMOTING
8867 int pos_was_ok, pos_was_ok2;
8870 MonoMethodBuilder *mb;
8873 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8874 if ((res = mono_marshal_find_in_cache (cache, klass)))
8877 if (!castclass_sig) {
8878 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8879 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8880 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8881 castclass_sig->pinvoke = 0;
8884 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8885 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8888 mb->method->save_lmf = 1;
8891 /* check if the object is a proxy that needs special cast */
8892 mono_mb_emit_ldarg (mb, 0);
8893 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8894 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8896 /* The result of MONO_CCASTCLASS can be:
8897 0) the cast is valid
8898 1) cast of unknown proxy type
8899 or an exception if the cast is is invalid
8901 #ifndef DISABLE_REMOTING
8902 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8904 /* get the real proxy from the transparent proxy*/
8906 mono_mb_emit_ldarg (mb, 0);
8907 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8908 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8911 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8914 mono_mb_patch_branch (mb, pos_was_ok);
8915 mono_mb_patch_branch (mb, pos_was_ok2);
8917 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8918 mono_mb_emit_byte (mb, CEE_POP);
8919 #endif /* DISABLE_REMOTING */
8921 mono_mb_emit_ldarg (mb, 0);
8924 mono_mb_emit_byte (mb, CEE_RET);
8925 #endif /* DISABLE_JIT */
8927 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8929 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8937 * mono_marshal_get_struct_to_ptr:
8940 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8941 * The wrapper info for the wrapper is a WrapperInfo structure.
8944 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8946 MonoMethodBuilder *mb;
8947 static MonoMethod *stoptr = NULL;
8951 g_assert (klass != NULL);
8953 mono_marshal_load_type_info (klass);
8955 if (klass->marshal_info->str_to_ptr)
8956 return klass->marshal_info->str_to_ptr;
8959 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8962 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8965 if (klass->blittable) {
8966 mono_mb_emit_byte (mb, CEE_LDARG_1);
8967 mono_mb_emit_byte (mb, CEE_LDARG_0);
8968 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8969 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8970 mono_mb_emit_byte (mb, CEE_PREFIX1);
8971 mono_mb_emit_byte (mb, CEE_CPBLK);
8974 /* allocate local 0 (pointer) src_ptr */
8975 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8976 /* allocate local 1 (pointer) dst_ptr */
8977 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8978 /* allocate local 2 (boolean) delete_old */
8979 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8980 mono_mb_emit_byte (mb, CEE_LDARG_2);
8981 mono_mb_emit_stloc (mb, 2);
8983 /* initialize src_ptr to point to the start of object data */
8984 mono_mb_emit_byte (mb, CEE_LDARG_0);
8985 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8986 mono_mb_emit_stloc (mb, 0);
8988 /* initialize dst_ptr */
8989 mono_mb_emit_byte (mb, CEE_LDARG_1);
8990 mono_mb_emit_stloc (mb, 1);
8992 emit_struct_conv (mb, klass, FALSE);
8995 mono_mb_emit_byte (mb, CEE_RET);
8997 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8998 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9001 mono_marshal_lock ();
9002 if (!klass->marshal_info->str_to_ptr)
9003 klass->marshal_info->str_to_ptr = res;
9005 res = klass->marshal_info->str_to_ptr;
9006 mono_marshal_unlock ();
9011 * mono_marshal_get_ptr_to_struct:
9014 * generates IL code for PtrToStructure (IntPtr src, object structure)
9015 * The wrapper info for the wrapper is a WrapperInfo structure.
9018 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9020 MonoMethodBuilder *mb;
9021 static MonoMethodSignature *ptostr = NULL;
9025 g_assert (klass != NULL);
9027 mono_marshal_load_type_info (klass);
9029 if (klass->marshal_info->ptr_to_str)
9030 return klass->marshal_info->ptr_to_str;
9033 MonoMethodSignature *sig;
9035 /* Create the signature corresponding to
9036 static void PtrToStructure (IntPtr ptr, object structure);
9037 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9038 sig = mono_create_icall_signature ("void ptr object");
9039 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9041 mono_memory_barrier ();
9045 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9048 if (klass->blittable) {
9049 mono_mb_emit_byte (mb, CEE_LDARG_1);
9050 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9051 mono_mb_emit_byte (mb, CEE_LDARG_0);
9052 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9053 mono_mb_emit_byte (mb, CEE_PREFIX1);
9054 mono_mb_emit_byte (mb, CEE_CPBLK);
9057 /* allocate local 0 (pointer) src_ptr */
9058 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9059 /* allocate local 1 (pointer) dst_ptr */
9060 mono_mb_add_local (mb, &klass->this_arg);
9062 /* initialize src_ptr to point to the start of object data */
9063 mono_mb_emit_byte (mb, CEE_LDARG_0);
9064 mono_mb_emit_stloc (mb, 0);
9066 /* initialize dst_ptr */
9067 mono_mb_emit_byte (mb, CEE_LDARG_1);
9068 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9069 mono_mb_emit_stloc (mb, 1);
9071 emit_struct_conv (mb, klass, TRUE);
9074 mono_mb_emit_byte (mb, CEE_RET);
9076 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9077 res = mono_mb_create (mb, ptostr, 0, info);
9080 mono_marshal_lock ();
9081 if (!klass->marshal_info->ptr_to_str)
9082 klass->marshal_info->ptr_to_str = res;
9084 res = klass->marshal_info->ptr_to_str;
9085 mono_marshal_unlock ();
9090 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9091 * This is used to avoid infinite recursion since it is hard to determine where to
9092 * replace a method with its synchronized wrapper, and where not.
9093 * The runtime should execute METHOD instead of the wrapper.
9094 * The wrapper info for the wrapper is a WrapperInfo structure.
9097 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9099 MonoMethodBuilder *mb;
9101 MonoMethodSignature *sig;
9103 MonoGenericContext *ctx = NULL;
9104 MonoGenericContainer *container = NULL;
9106 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9107 ctx = &((MonoMethodInflated*)method)->context;
9108 method = ((MonoMethodInflated*)method)->declaring;
9109 container = mono_method_get_generic_container (method);
9111 container = method->klass->generic_container;
9112 g_assert (container);
9115 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9117 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9118 mono_mb_emit_byte (mb, CEE_RET);
9120 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9122 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9123 info->d.synchronized_inner.method = method;
9124 res = mono_mb_create (mb, sig, 0, info);
9128 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9129 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9135 * generates IL code for the synchronized wrapper: the generated method
9136 * calls METHOD while locking 'this' or the parent type.
9139 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9141 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9142 MonoMethodSignature *sig;
9143 MonoExceptionClause *clause;
9144 MonoMethodBuilder *mb;
9148 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9149 MonoGenericContext *ctx = NULL;
9150 MonoMethod *orig_method = NULL;
9151 MonoGenericContainer *container = NULL;
9155 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9158 /* FIXME: Support generic methods too */
9159 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9160 orig_method = method;
9161 ctx = &((MonoMethodInflated*)method)->context;
9162 method = ((MonoMethodInflated*)method)->declaring;
9163 container = mono_method_get_generic_container (method);
9165 container = method->klass->generic_container;
9166 g_assert (container);
9173 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9174 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9178 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9179 if ((res = mono_marshal_find_in_cache (cache, method)))
9183 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9186 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9188 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9189 info->d.synchronized.method = method;
9192 mb->skip_visibility = 1;
9194 if (!MONO_TYPE_IS_VOID (sig->ret))
9195 ret_local = mono_mb_add_local (mb, sig->ret);
9198 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9199 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9201 /* This will throw the type load exception when the wrapper is compiled */
9202 mono_mb_emit_byte (mb, CEE_LDNULL);
9203 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9204 mono_mb_emit_byte (mb, CEE_POP);
9206 if (!MONO_TYPE_IS_VOID (sig->ret))
9207 mono_mb_emit_ldloc (mb, ret_local);
9208 mono_mb_emit_byte (mb, CEE_RET);
9211 res = mono_mb_create_and_cache_full (cache, method,
9212 mb, sig, sig->param_count + 16, info, NULL);
9220 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9221 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9223 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9224 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9227 mono_marshal_lock ();
9229 if (!enter_method) {
9230 MonoMethodDesc *desc;
9232 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9233 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9234 g_assert (enter_method);
9235 mono_method_desc_free (desc);
9237 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9238 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9239 g_assert (exit_method);
9240 mono_method_desc_free (desc);
9242 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9243 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9244 g_assert (gettypefromhandle_method);
9245 mono_method_desc_free (desc);
9248 mono_marshal_unlock ();
9251 /* Push this or the type object */
9252 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9253 /* We have special handling for this in the JIT */
9254 int index = mono_mb_add_data (mb, method->klass);
9255 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9256 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9257 mono_mb_emit_i4 (mb, index);
9259 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9262 mono_mb_emit_ldarg (mb, 0);
9263 mono_mb_emit_stloc (mb, this_local);
9265 /* Call Monitor::Enter() */
9266 mono_mb_emit_ldloc (mb, this_local);
9267 mono_mb_emit_ldloc_addr (mb, taken_local);
9268 mono_mb_emit_managed_call (mb, enter_method, NULL);
9270 clause->try_offset = mono_mb_get_label (mb);
9272 /* Call the method */
9274 mono_mb_emit_ldarg (mb, 0);
9275 for (i = 0; i < sig->param_count; i++)
9276 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9280 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9281 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9283 mono_mb_emit_managed_call (mb, method, NULL);
9286 if (!MONO_TYPE_IS_VOID (sig->ret))
9287 mono_mb_emit_stloc (mb, ret_local);
9289 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9291 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9292 clause->handler_offset = mono_mb_get_label (mb);
9294 /* Call Monitor::Exit() if needed */
9295 mono_mb_emit_ldloc (mb, taken_local);
9296 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9297 mono_mb_emit_ldloc (mb, this_local);
9298 mono_mb_emit_managed_call (mb, exit_method, NULL);
9299 mono_mb_patch_branch (mb, pos2);
9300 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9302 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9304 mono_mb_patch_branch (mb, pos);
9305 if (!MONO_TYPE_IS_VOID (sig->ret))
9306 mono_mb_emit_ldloc (mb, ret_local);
9307 mono_mb_emit_byte (mb, CEE_RET);
9309 mono_mb_set_clauses (mb, 1, clause);
9314 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9315 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9317 res = mono_mb_create_and_cache_full (cache, method,
9318 mb, sig, sig->param_count + 16, info, NULL);
9327 * the returned method calls 'method' unboxing the this argument
9330 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9332 MonoMethodSignature *sig = mono_method_signature (method);
9334 MonoMethodBuilder *mb;
9339 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9341 if ((res = mono_marshal_find_in_cache (cache, method)))
9344 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9346 g_assert (sig->hasthis);
9349 mono_mb_emit_ldarg (mb, 0);
9350 mono_mb_emit_icon (mb, sizeof (MonoObject));
9351 mono_mb_emit_byte (mb, CEE_ADD);
9352 for (i = 0; i < sig->param_count; ++i)
9353 mono_mb_emit_ldarg (mb, i + 1);
9354 mono_mb_emit_managed_call (mb, method, NULL);
9355 mono_mb_emit_byte (mb, CEE_RET);
9358 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9359 info->d.unbox.method = method;
9361 res = mono_mb_create_and_cache_full (cache, method,
9362 mb, sig, sig->param_count + 16, info, NULL);
9365 /* mono_method_print_code (res); */
9371 STELEMREF_OBJECT, /*no check at all*/
9372 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9373 STELEMREF_CLASS, /*only the klass->parents check*/
9374 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9375 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9376 STELEMREF_KIND_COUNT
9379 static const char *strelemref_wrapper_name[] = {
9380 "object", "sealed_class", "class", "interface", "complex"
9384 is_monomorphic_array (MonoClass *klass)
9386 MonoClass *element_class;
9387 if (klass->rank != 1)
9390 element_class = klass->element_class;
9391 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9395 get_virtual_stelemref_kind (MonoClass *element_class)
9397 if (element_class == mono_defaults.object_class)
9398 return STELEMREF_OBJECT;
9399 if (is_monomorphic_array (element_class))
9400 return STELEMREF_SEALED_CLASS;
9401 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9402 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9403 #ifdef COMPRESSED_INTERFACE_BITMAP
9404 return STELEMREF_COMPLEX;
9406 return STELEMREF_INTERFACE;
9408 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9409 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9410 return STELEMREF_COMPLEX;
9411 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9412 return STELEMREF_SEALED_CLASS;
9413 return STELEMREF_CLASS;
9419 load_array_element_address (MonoMethodBuilder *mb)
9421 mono_mb_emit_ldarg (mb, 0);
9422 mono_mb_emit_ldarg (mb, 1);
9423 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9427 load_array_class (MonoMethodBuilder *mb, int aklass)
9429 mono_mb_emit_ldarg (mb, 0);
9430 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9431 mono_mb_emit_byte (mb, CEE_LDIND_I);
9432 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9433 mono_mb_emit_byte (mb, CEE_LDIND_I);
9434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9435 mono_mb_emit_byte (mb, CEE_LDIND_I);
9436 mono_mb_emit_stloc (mb, aklass);
9440 load_value_class (MonoMethodBuilder *mb, int vklass)
9442 mono_mb_emit_ldarg (mb, 2);
9443 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9444 mono_mb_emit_byte (mb, CEE_LDIND_I);
9445 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9446 mono_mb_emit_byte (mb, CEE_LDIND_I);
9447 mono_mb_emit_stloc (mb, vklass);
9453 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9455 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9456 printf ("slow vstore of %s\n", name);
9462 * The wrapper info for the wrapper is a WrapperInfo structure.
9465 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9466 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9467 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9468 * - Add a case for arrays of arrays.
9471 get_virtual_stelemref_wrapper (int kind)
9473 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9474 static MonoMethodSignature *signature;
9475 MonoMethodBuilder *mb;
9478 const char *param_names [16];
9480 int aklass, vklass, vtable, uiid;
9481 int array_slot_addr;
9484 if (cached_methods [kind])
9485 return cached_methods [kind];
9487 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9488 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9492 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9494 /* void this::stelemref (size_t idx, void* value) */
9495 sig->ret = &mono_defaults.void_class->byval_arg;
9496 sig->hasthis = TRUE;
9497 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9498 sig->params [1] = &mono_defaults.object_class->byval_arg;
9503 param_names [0] = "index";
9504 param_names [1] = "value";
9505 mono_mb_set_param_names (mb, param_names);
9507 /*For now simply call plain old stelemref*/
9509 case STELEMREF_OBJECT:
9510 /* ldelema (implicit bound check) */
9511 load_array_element_address (mb);
9513 mono_mb_emit_ldarg (mb, 2);
9514 mono_mb_emit_byte (mb, CEE_STIND_REF);
9515 mono_mb_emit_byte (mb, CEE_RET);
9518 case STELEMREF_COMPLEX:
9520 <ldelema (bound check)>
9523 if (!mono_object_isinst (value, aklass))
9527 *array_slot_addr = value;
9530 throw new ArrayTypeMismatchException ();
9533 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9534 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9538 /*Use this to debug/record stores that are going thru the slow path*/
9539 MonoMethodSignature *csig;
9540 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9541 csig->ret = &mono_defaults.void_class->byval_arg;
9542 csig->params [0] = &mono_defaults.object_class->byval_arg;
9543 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9544 csig->params [2] = &mono_defaults.object_class->byval_arg;
9545 mono_mb_emit_ldarg (mb, 0);
9546 mono_mb_emit_ldarg (mb, 1);
9547 mono_mb_emit_ldarg (mb, 2);
9548 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9552 /* ldelema (implicit bound check) */
9553 load_array_element_address (mb);
9554 mono_mb_emit_stloc (mb, array_slot_addr);
9556 /* if (!value) goto do_store */
9557 mono_mb_emit_ldarg (mb, 2);
9558 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9560 /* aklass = array->vtable->klass->element_class */
9561 load_array_class (mb, aklass);
9563 /*if (mono_object_isinst (value, aklass)) */
9564 mono_mb_emit_ldarg (mb, 2);
9565 mono_mb_emit_ldloc (mb, aklass);
9566 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9567 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9570 mono_mb_patch_branch (mb, b1);
9571 mono_mb_emit_ldloc (mb, array_slot_addr);
9572 mono_mb_emit_ldarg (mb, 2);
9573 mono_mb_emit_byte (mb, CEE_STIND_REF);
9574 mono_mb_emit_byte (mb, CEE_RET);
9577 mono_mb_patch_branch (mb, b2);
9579 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9582 case STELEMREF_SEALED_CLASS:
9584 <ldelema (bound check)>
9588 aklass = array->vtable->klass->element_class;
9589 vklass = value->vtable->klass;
9591 if (vklass != aklass)
9595 *array_slot_addr = value;
9598 throw new ArrayTypeMismatchException ();
9600 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9601 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9602 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9605 /* ldelema (implicit bound check) */
9606 load_array_element_address (mb);
9607 mono_mb_emit_stloc (mb, array_slot_addr);
9609 /* if (!value) goto do_store */
9610 mono_mb_emit_ldarg (mb, 2);
9611 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9613 /* aklass = array->vtable->klass->element_class */
9614 load_array_class (mb, aklass);
9616 /* vklass = value->vtable->klass */
9617 load_value_class (mb, vklass);
9619 /*if (vklass != aklass) goto do_exception; */
9620 mono_mb_emit_ldloc (mb, aklass);
9621 mono_mb_emit_ldloc (mb, vklass);
9622 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9625 mono_mb_patch_branch (mb, b1);
9626 mono_mb_emit_ldloc (mb, array_slot_addr);
9627 mono_mb_emit_ldarg (mb, 2);
9628 mono_mb_emit_byte (mb, CEE_STIND_REF);
9629 mono_mb_emit_byte (mb, CEE_RET);
9632 mono_mb_patch_branch (mb, b2);
9633 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9636 case STELEMREF_CLASS:
9639 <ldelema (bound check)>
9643 aklass = array->vtable->klass->element_class;
9644 vklass = value->vtable->klass;
9646 if (vklass->idepth < aklass->idepth)
9649 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9653 *array_slot_addr = value;
9657 throw new ArrayTypeMismatchException ();
9659 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9660 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9661 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9663 /* ldelema (implicit bound check) */
9664 load_array_element_address (mb);
9665 mono_mb_emit_stloc (mb, array_slot_addr);
9667 /* if (!value) goto do_store */
9668 mono_mb_emit_ldarg (mb, 2);
9669 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9671 /* aklass = array->vtable->klass->element_class */
9672 load_array_class (mb, aklass);
9674 /* vklass = value->vtable->klass */
9675 load_value_class (mb, vklass);
9677 /*if (mono_object_isinst (value, aklass)) */
9678 mono_mb_emit_ldarg (mb, 2);
9679 mono_mb_emit_ldloc (mb, aklass);
9680 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9681 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9683 /* if (vklass->idepth < aklass->idepth) goto failue */
9684 mono_mb_emit_ldloc (mb, vklass);
9685 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9686 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9688 mono_mb_emit_ldloc (mb, aklass);
9689 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9690 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9692 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9694 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9695 mono_mb_emit_ldloc (mb, vklass);
9696 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9697 mono_mb_emit_byte (mb, CEE_LDIND_I);
9699 mono_mb_emit_ldloc (mb, aklass);
9700 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9701 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9702 mono_mb_emit_icon (mb, 1);
9703 mono_mb_emit_byte (mb, CEE_SUB);
9704 mono_mb_emit_icon (mb, sizeof (void*));
9705 mono_mb_emit_byte (mb, CEE_MUL);
9706 mono_mb_emit_byte (mb, CEE_ADD);
9707 mono_mb_emit_byte (mb, CEE_LDIND_I);
9709 mono_mb_emit_ldloc (mb, aklass);
9710 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9713 mono_mb_patch_branch (mb, b1);
9714 mono_mb_emit_ldloc (mb, array_slot_addr);
9715 mono_mb_emit_ldarg (mb, 2);
9716 mono_mb_emit_byte (mb, CEE_STIND_REF);
9717 mono_mb_emit_byte (mb, CEE_RET);
9720 mono_mb_patch_branch (mb, b2);
9721 mono_mb_patch_branch (mb, b3);
9723 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9726 case STELEMREF_INTERFACE:
9733 klass = array->obj.vtable->klass->element_class;
9735 uiid = klass->interface_id;
9736 if (uiid > vt->max_interface_id)
9738 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9741 mono_array_setref (array, index, value);
9744 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9746 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9747 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9748 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9749 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9751 /* ldelema (implicit bound check) */
9752 load_array_element_address (mb);
9753 mono_mb_emit_stloc (mb, array_slot_addr);
9755 /* if (!value) goto do_store */
9756 mono_mb_emit_ldarg (mb, 2);
9757 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9759 /* klass = array->vtable->klass->element_class */
9760 load_array_class (mb, aklass);
9762 /* vt = value->vtable */
9763 mono_mb_emit_ldarg (mb, 2);
9764 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9765 mono_mb_emit_byte (mb, CEE_LDIND_I);
9766 mono_mb_emit_stloc (mb, vtable);
9768 /* uiid = klass->interface_id; */
9769 mono_mb_emit_ldloc (mb, aklass);
9770 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9771 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9772 mono_mb_emit_stloc (mb, uiid);
9774 /*if (uiid > vt->max_interface_id)*/
9775 mono_mb_emit_ldloc (mb, uiid);
9776 mono_mb_emit_ldloc (mb, vtable);
9777 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9778 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9779 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9781 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9783 /*vt->interface_bitmap*/
9784 mono_mb_emit_ldloc (mb, vtable);
9785 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9786 mono_mb_emit_byte (mb, CEE_LDIND_I);
9789 mono_mb_emit_ldloc (mb, uiid);
9790 mono_mb_emit_icon (mb, 3);
9791 mono_mb_emit_byte (mb, CEE_SHR_UN);
9793 /*vt->interface_bitmap [(uiid) >> 3]*/
9794 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9795 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9797 /*(1 << ((uiid)&7)))*/
9798 mono_mb_emit_icon (mb, 1);
9799 mono_mb_emit_ldloc (mb, uiid);
9800 mono_mb_emit_icon (mb, 7);
9801 mono_mb_emit_byte (mb, CEE_AND);
9802 mono_mb_emit_byte (mb, CEE_SHL);
9804 /*bitwise and the whole thing*/
9805 mono_mb_emit_byte (mb, CEE_AND);
9806 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9809 mono_mb_patch_branch (mb, b1);
9810 mono_mb_emit_ldloc (mb, array_slot_addr);
9811 mono_mb_emit_ldarg (mb, 2);
9812 mono_mb_emit_byte (mb, CEE_STIND_REF);
9813 mono_mb_emit_byte (mb, CEE_RET);
9816 mono_mb_patch_branch (mb, b2);
9817 mono_mb_patch_branch (mb, b3);
9818 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9822 mono_mb_emit_ldarg (mb, 0);
9823 mono_mb_emit_ldarg (mb, 1);
9824 mono_mb_emit_ldarg (mb, 2);
9825 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9826 mono_mb_emit_byte (mb, CEE_RET);
9829 #endif /* DISABLE_JIT */
9830 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9831 info->d.virtual_stelemref.kind = kind;
9832 res = mono_mb_create (mb, signature, 4, info);
9833 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9835 mono_marshal_lock ();
9836 if (!cached_methods [kind]) {
9837 cached_methods [kind] = res;
9838 mono_marshal_unlock ();
9840 mono_marshal_unlock ();
9841 mono_free_method (res);
9845 return cached_methods [kind];
9849 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9853 g_assert (array_class->rank == 1);
9854 kind = get_virtual_stelemref_kind (array_class->element_class);
9856 return get_virtual_stelemref_wrapper (kind);
9860 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9865 *nwrappers = STELEMREF_KIND_COUNT;
9866 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9867 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9868 res [i] = get_virtual_stelemref_wrapper (i);
9873 * The wrapper info for the wrapper is a WrapperInfo structure.
9876 mono_marshal_get_stelemref (void)
9878 static MonoMethod* ret = NULL;
9879 MonoMethodSignature *sig;
9880 MonoMethodBuilder *mb;
9883 guint32 b1, b2, b3, b4;
9886 int array_slot_addr;
9891 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9894 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9896 /* void stelemref (void* array, int idx, void* value) */
9897 sig->ret = &mono_defaults.void_class->byval_arg;
9898 sig->params [0] = &mono_defaults.object_class->byval_arg;
9899 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9900 sig->params [2] = &mono_defaults.object_class->byval_arg;
9903 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9904 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9905 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9909 <ldelema (bound check)>
9913 aklass = array->vtable->klass->element_class;
9914 vklass = value->vtable->klass;
9916 if (vklass->idepth < aklass->idepth)
9919 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9923 *array_slot_addr = value;
9927 if (mono_object_isinst (value, aklass))
9930 throw new ArrayTypeMismatchException ();
9933 /* ldelema (implicit bound check) */
9934 mono_mb_emit_ldarg (mb, 0);
9935 mono_mb_emit_ldarg (mb, 1);
9936 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9937 mono_mb_emit_stloc (mb, array_slot_addr);
9939 /* if (!value) goto do_store */
9940 mono_mb_emit_ldarg (mb, 2);
9941 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9943 /* aklass = array->vtable->klass->element_class */
9944 mono_mb_emit_ldarg (mb, 0);
9945 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9946 mono_mb_emit_byte (mb, CEE_LDIND_I);
9947 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9948 mono_mb_emit_byte (mb, CEE_LDIND_I);
9949 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9950 mono_mb_emit_byte (mb, CEE_LDIND_I);
9951 mono_mb_emit_stloc (mb, aklass);
9953 /* vklass = value->vtable->klass */
9954 mono_mb_emit_ldarg (mb, 2);
9955 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9956 mono_mb_emit_byte (mb, CEE_LDIND_I);
9957 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9958 mono_mb_emit_byte (mb, CEE_LDIND_I);
9959 mono_mb_emit_stloc (mb, vklass);
9961 /* if (vklass->idepth < aklass->idepth) goto failue */
9962 mono_mb_emit_ldloc (mb, vklass);
9963 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9964 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9966 mono_mb_emit_ldloc (mb, aklass);
9967 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9968 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9970 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9972 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9973 mono_mb_emit_ldloc (mb, vklass);
9974 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9975 mono_mb_emit_byte (mb, CEE_LDIND_I);
9977 mono_mb_emit_ldloc (mb, aklass);
9978 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9979 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9980 mono_mb_emit_icon (mb, 1);
9981 mono_mb_emit_byte (mb, CEE_SUB);
9982 mono_mb_emit_icon (mb, sizeof (void*));
9983 mono_mb_emit_byte (mb, CEE_MUL);
9984 mono_mb_emit_byte (mb, CEE_ADD);
9985 mono_mb_emit_byte (mb, CEE_LDIND_I);
9987 mono_mb_emit_ldloc (mb, aklass);
9989 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9991 copy_pos = mono_mb_get_label (mb);
9993 mono_mb_patch_branch (mb, b1);
9994 mono_mb_emit_ldloc (mb, array_slot_addr);
9995 mono_mb_emit_ldarg (mb, 2);
9996 mono_mb_emit_byte (mb, CEE_STIND_REF);
9998 mono_mb_emit_byte (mb, CEE_RET);
10001 mono_mb_patch_branch (mb, b2);
10002 mono_mb_patch_branch (mb, b3);
10004 mono_mb_emit_ldarg (mb, 2);
10005 mono_mb_emit_ldloc (mb, aklass);
10006 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10008 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10009 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10010 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10012 mono_mb_emit_byte (mb, CEE_RET);
10014 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10015 ret = mono_mb_create (mb, sig, 4, info);
10022 * mono_marshal_get_gsharedvt_in_wrapper:
10024 * This wrapper handles calls from normal code to gsharedvt code.
10026 * The wrapper info for the wrapper is a WrapperInfo structure.
10029 mono_marshal_get_gsharedvt_in_wrapper (void)
10031 static MonoMethod* ret = NULL;
10032 MonoMethodSignature *sig;
10033 MonoMethodBuilder *mb;
10039 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10041 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10042 sig->ret = &mono_defaults.void_class->byval_arg;
10044 #ifndef DISABLE_JIT
10046 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10048 mono_mb_emit_byte (mb, CEE_RET);
10050 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10051 ret = mono_mb_create (mb, sig, 4, info);
10058 * mono_marshal_get_gsharedvt_out_wrapper:
10060 * This wrapper handles calls from gsharedvt code to normal code.
10062 * The wrapper info for the wrapper is a WrapperInfo structure.
10065 mono_marshal_get_gsharedvt_out_wrapper (void)
10067 static MonoMethod* ret = NULL;
10068 MonoMethodSignature *sig;
10069 MonoMethodBuilder *mb;
10075 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10077 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10078 sig->ret = &mono_defaults.void_class->byval_arg;
10080 #ifndef DISABLE_JIT
10082 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10084 mono_mb_emit_byte (mb, CEE_RET);
10086 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10087 ret = mono_mb_create (mb, sig, 4, info);
10096 MonoMethod *method;
10099 /* LOCKING: vars accessed under the marshal lock */
10100 static ArrayElemAddr *elem_addr_cache = NULL;
10101 static int elem_addr_cache_size = 0;
10102 static int elem_addr_cache_next = 0;
10105 * mono_marshal_get_array_address:
10106 * @rank: rank of the array type
10107 * @elem_size: size in bytes of an element of an array.
10109 * Returns a MonoMethod that implements the code to get the address
10110 * of an element in a multi-dimenasional array of @rank dimensions.
10111 * The returned method takes an array as the first argument and then
10112 * @rank indexes for the @rank dimensions.
10113 * If ELEM_SIZE is 0, read the array size from the array object.
10116 mono_marshal_get_array_address (int rank, int elem_size)
10119 MonoMethodBuilder *mb;
10120 MonoMethodSignature *sig;
10123 int i, bounds, ind, realidx;
10124 int branch_pos, *branch_positions;
10128 mono_marshal_lock ();
10129 for (i = 0; i < elem_addr_cache_next; ++i) {
10130 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10131 ret = elem_addr_cache [i].method;
10135 mono_marshal_unlock ();
10139 branch_positions = g_new0 (int, rank);
10141 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10143 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10144 sig->ret = &mono_defaults.int_class->byval_arg;
10145 sig->params [0] = &mono_defaults.object_class->byval_arg;
10146 for (i = 0; i < rank; ++i) {
10147 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10150 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10151 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10154 #ifndef DISABLE_JIT
10155 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10156 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10157 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10159 /* bounds = array->bounds; */
10160 mono_mb_emit_ldarg (mb, 0);
10161 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10162 mono_mb_emit_byte (mb, CEE_LDIND_I);
10163 mono_mb_emit_stloc (mb, bounds);
10165 /* ind is the overall element index, realidx is the partial index in a single dimension */
10166 /* ind = idx0 - bounds [0].lower_bound */
10167 mono_mb_emit_ldarg (mb, 1);
10168 mono_mb_emit_ldloc (mb, bounds);
10169 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10170 mono_mb_emit_byte (mb, CEE_ADD);
10171 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10172 mono_mb_emit_byte (mb, CEE_SUB);
10173 mono_mb_emit_stloc (mb, ind);
10174 /* if (ind >= bounds [0].length) goto exeception; */
10175 mono_mb_emit_ldloc (mb, ind);
10176 mono_mb_emit_ldloc (mb, bounds);
10177 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10178 mono_mb_emit_byte (mb, CEE_ADD);
10179 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10180 /* note that we use unsigned comparison */
10181 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10183 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10184 * We could also decide to ignore the passed elem_size and get it
10185 * from the array object, to reduce the number of methods we generate:
10186 * the additional cost is 3 memory loads and a non-immediate mul.
10188 for (i = 1; i < rank; ++i) {
10189 /* realidx = idxi - bounds [i].lower_bound */
10190 mono_mb_emit_ldarg (mb, 1 + i);
10191 mono_mb_emit_ldloc (mb, bounds);
10192 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10193 mono_mb_emit_byte (mb, CEE_ADD);
10194 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10195 mono_mb_emit_byte (mb, CEE_SUB);
10196 mono_mb_emit_stloc (mb, realidx);
10197 /* if (realidx >= bounds [i].length) goto exeception; */
10198 mono_mb_emit_ldloc (mb, realidx);
10199 mono_mb_emit_ldloc (mb, bounds);
10200 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10201 mono_mb_emit_byte (mb, CEE_ADD);
10202 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10203 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10204 /* ind = ind * bounds [i].length + realidx */
10205 mono_mb_emit_ldloc (mb, ind);
10206 mono_mb_emit_ldloc (mb, bounds);
10207 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10208 mono_mb_emit_byte (mb, CEE_ADD);
10209 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10210 mono_mb_emit_byte (mb, CEE_MUL);
10211 mono_mb_emit_ldloc (mb, realidx);
10212 mono_mb_emit_byte (mb, CEE_ADD);
10213 mono_mb_emit_stloc (mb, ind);
10216 /* return array->vector + ind * element_size */
10217 mono_mb_emit_ldarg (mb, 0);
10218 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10219 mono_mb_emit_ldloc (mb, ind);
10221 mono_mb_emit_icon (mb, elem_size);
10223 /* Load arr->vtable->klass->sizes.element_class */
10224 mono_mb_emit_ldarg (mb, 0);
10225 mono_mb_emit_byte (mb, CEE_CONV_I);
10226 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10227 mono_mb_emit_byte (mb, CEE_ADD);
10228 mono_mb_emit_byte (mb, CEE_LDIND_I);
10229 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10230 mono_mb_emit_byte (mb, CEE_ADD);
10231 mono_mb_emit_byte (mb, CEE_LDIND_I);
10232 /* sizes is an union, so this reads sizes.element_size */
10233 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10234 mono_mb_emit_byte (mb, CEE_ADD);
10235 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10237 mono_mb_emit_byte (mb, CEE_MUL);
10238 mono_mb_emit_byte (mb, CEE_ADD);
10239 mono_mb_emit_byte (mb, CEE_RET);
10241 /* patch the branches to get here and throw */
10242 for (i = 1; i < rank; ++i) {
10243 mono_mb_patch_branch (mb, branch_positions [i]);
10245 mono_mb_patch_branch (mb, branch_pos);
10246 /* throw exception */
10247 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10249 g_free (branch_positions);
10250 #endif /* DISABLE_JIT */
10252 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10253 info->d.element_addr.rank = rank;
10254 info->d.element_addr.elem_size = elem_size;
10255 ret = mono_mb_create (mb, sig, 4, info);
10258 /* cache the result */
10260 mono_marshal_lock ();
10261 for (i = 0; i < elem_addr_cache_next; ++i) {
10262 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10263 /* FIXME: free ret */
10264 ret = elem_addr_cache [i].method;
10270 if (elem_addr_cache_next >= elem_addr_cache_size) {
10271 int new_size = elem_addr_cache_size + 4;
10272 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10273 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10274 g_free (elem_addr_cache);
10275 elem_addr_cache = new_array;
10276 elem_addr_cache_size = new_size;
10278 elem_addr_cache [elem_addr_cache_next].rank = rank;
10279 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10280 elem_addr_cache [elem_addr_cache_next].method = ret;
10281 elem_addr_cache_next ++;
10283 mono_marshal_unlock ();
10288 * mono_marshal_get_array_accessor_wrapper:
10290 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10293 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10295 MonoMethodSignature *sig;
10296 MonoMethodBuilder *mb;
10300 MonoGenericContext *ctx = NULL;
10301 MonoMethod *orig_method = NULL;
10302 MonoGenericContainer *container = NULL;
10306 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10307 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10308 * FIXME: Use generic methods.
10315 g_assert_not_reached ();
10317 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10318 if ((res = mono_marshal_find_in_cache (cache, method)))
10322 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10325 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10327 #ifndef DISABLE_JIT
10328 /* Call the method */
10330 mono_mb_emit_ldarg (mb, 0);
10331 for (i = 0; i < sig->param_count; i++)
10332 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10336 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10337 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10339 mono_mb_emit_managed_call (mb, method, NULL);
10341 mono_mb_emit_byte (mb, CEE_RET);
10344 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10345 info->d.array_accessor.method = method;
10349 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10350 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10352 res = mono_mb_create_and_cache_full (cache, method,
10353 mb, sig, sig->param_count + 16,
10362 mono_marshal_alloc (gulong size, MonoError *error)
10366 mono_error_init (error);
10369 res = CoTaskMemAlloc (size);
10371 res = g_try_malloc ((gulong)size);
10373 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10378 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10380 ves_icall_marshal_alloc (gulong size)
10383 void *ret = mono_marshal_alloc (size, &error);
10384 if (!mono_error_ok (&error)) {
10385 mono_error_set_pending_exception (&error);
10393 mono_marshal_free (gpointer ptr)
10396 CoTaskMemFree (ptr);
10403 mono_marshal_free_array (gpointer *ptr, int size)
10410 for (i = 0; i < size; i++)
10416 mono_marshal_string_to_utf16 (MonoString *s)
10418 return s ? mono_string_chars (s) : NULL;
10421 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10423 mono_marshal_string_to_utf16_copy (MonoString *s)
10429 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10430 if (!mono_error_ok (&error)) {
10431 mono_error_set_pending_exception (&error);
10434 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10435 res [mono_string_length (s)] = 0;
10441 * mono_marshal_set_last_error:
10443 * This function is invoked to set the last error value from a P/Invoke call
10444 * which has SetLastError set.
10447 mono_marshal_set_last_error (void)
10450 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10452 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10457 mono_marshal_set_last_error_windows (int error)
10460 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10465 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10466 gpointer dest, gint32 length)
10471 MONO_CHECK_ARG_NULL (src,);
10472 MONO_CHECK_ARG_NULL (dest,);
10474 if (src->obj.vtable->klass->rank != 1) {
10475 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10478 if (start_index < 0) {
10479 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10483 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10486 if (start_index + length > mono_array_length (src)) {
10487 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10491 element_size = mono_array_element_size (src->obj.vtable->klass);
10493 /* no references should be involved */
10494 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10496 memcpy (dest, source_addr, length * element_size);
10500 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10501 MonoArray *dest, gint32 length)
10506 MONO_CHECK_ARG_NULL (src,);
10507 MONO_CHECK_ARG_NULL (dest,);
10509 if (dest->obj.vtable->klass->rank != 1) {
10510 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10513 if (start_index < 0) {
10514 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10518 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10521 if (start_index + length > mono_array_length (dest)) {
10522 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10525 element_size = mono_array_element_size (dest->obj.vtable->klass);
10527 /* no references should be involved */
10528 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10530 memcpy (dest_addr, src, length * element_size);
10534 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10539 return mono_string_new (mono_domain_get (), ptr);
10543 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10546 MonoString *result = NULL;
10547 mono_error_init (&error);
10549 mono_error_set_argument_null (&error, "ptr", "");
10551 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10552 mono_error_set_pending_exception (&error);
10557 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10560 MonoString *res = NULL;
10561 MonoDomain *domain = mono_domain_get ();
10571 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10572 if (!mono_error_ok (&error)) {
10573 mono_error_set_pending_exception (&error);
10580 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10583 MonoString *res = NULL;
10584 MonoDomain *domain = mono_domain_get ();
10586 mono_error_init (&error);
10590 mono_error_set_argument_null (&error, "ptr", "");
10592 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10595 if (!mono_error_ok (&error))
10596 mono_error_set_pending_exception (&error);
10601 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10603 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10607 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10613 MONO_CHECK_ARG_NULL (rtype, 0);
10615 type = rtype->type;
10616 klass = mono_class_from_mono_type (type);
10617 if (!mono_class_init (klass)) {
10618 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10622 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10624 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10625 return sizeof (gpointer);
10626 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10628 MonoException *exc;
10630 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10631 exc = mono_get_exception_argument ("t", msg);
10633 mono_set_pending_exception (exc);
10637 return mono_class_native_size (klass, NULL);
10641 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10644 MonoMethod *method;
10647 MONO_CHECK_ARG_NULL (obj,);
10648 MONO_CHECK_ARG_NULL (dst,);
10650 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10654 pa [2] = &delete_old;
10656 mono_runtime_invoke_checked (method, NULL, pa, &error);
10657 if (!mono_error_ok (&error))
10658 mono_error_set_pending_exception (&error);
10662 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10664 MonoMethod *method;
10667 mono_error_init (error);
10669 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10674 mono_runtime_invoke_checked (method, NULL, pa, error);
10678 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10683 MONO_CHECK_ARG_NULL (src,);
10684 MONO_CHECK_ARG_NULL (dst,);
10686 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10688 if (t->type == MONO_TYPE_VALUETYPE) {
10689 MonoException *exc;
10692 tmp = g_strdup_printf ("Destination is a boxed value type.");
10693 exc = mono_get_exception_argument ("dst", tmp);
10696 mono_set_pending_exception (exc);
10700 ptr_to_structure (src, dst, &error);
10701 if (!mono_error_ok (&error))
10702 mono_error_set_pending_exception (&error);
10706 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10710 MonoDomain *domain = mono_domain_get ();
10715 MONO_CHECK_ARG_NULL (type, NULL);
10717 klass = mono_class_from_mono_type (type->type);
10718 if (!mono_class_init (klass)) {
10719 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10723 res = mono_object_new_checked (domain, klass, &error);
10724 if (!mono_error_ok (&error)) {
10725 mono_error_set_pending_exception (&error);
10729 ptr_to_structure (src, res, &error);
10730 if (!mono_error_ok (&error)) {
10731 mono_error_set_pending_exception (&error);
10739 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10741 MonoMarshalType *info;
10744 int match_index = -1;
10746 MONO_CHECK_ARG_NULL (type, 0);
10747 MONO_CHECK_ARG_NULL (field_name, 0);
10749 fname = mono_string_to_utf8 (field_name);
10750 klass = mono_class_from_mono_type (type->type);
10751 if (!mono_class_init (klass)) {
10752 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10756 while (klass && match_index == -1) {
10757 MonoClassField* field;
10759 gpointer iter = NULL;
10760 while ((field = mono_class_get_fields (klass, &iter))) {
10761 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10763 if (!strcmp (fname, mono_field_get_name (field))) {
10770 if (match_index == -1)
10771 klass = klass->parent;
10776 if(match_index == -1) {
10777 MonoException* exc;
10780 /* Get back original class instance */
10781 klass = mono_class_from_mono_type (type->type);
10783 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10784 exc = mono_get_exception_argument ("fieldName", tmp);
10787 mono_set_pending_exception ((MonoException*)exc);
10791 info = mono_marshal_load_type_info (klass);
10792 return info->fields [match_index].offset;
10796 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10801 tres = mono_string_to_utf8 (string);
10805 len = strlen (tres) + 1;
10806 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10807 memcpy (ret, tres, len);
10812 return mono_string_to_utf8 (string);
10817 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10819 if (string == NULL)
10822 #ifdef TARGET_WIN32
10823 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10824 ((mono_string_length (string) + 1) * 2);
10826 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10828 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10829 res [mono_string_length (string)] = 0;
10835 mono_struct_delete_old (MonoClass *klass, char *ptr)
10837 MonoMarshalType *info;
10840 info = mono_marshal_load_type_info (klass);
10842 for (i = 0; i < info->num_fields; i++) {
10843 MonoMarshalConv conv;
10844 MonoType *ftype = info->fields [i].field->type;
10847 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10850 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10851 klass->unicode, &conv);
10853 cpos = ptr + info->fields [i].offset;
10856 case MONO_MARSHAL_CONV_NONE:
10857 if (MONO_TYPE_ISSTRUCT (ftype)) {
10858 mono_struct_delete_old (ftype->data.klass, cpos);
10862 case MONO_MARSHAL_CONV_STR_LPWSTR:
10863 /* We assume this field points inside a MonoString */
10865 case MONO_MARSHAL_CONV_STR_LPTSTR:
10866 #ifdef TARGET_WIN32
10867 /* We assume this field points inside a MonoString
10871 case MONO_MARSHAL_CONV_STR_LPSTR:
10872 case MONO_MARSHAL_CONV_STR_BSTR:
10873 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10874 case MONO_MARSHAL_CONV_STR_TBSTR:
10875 mono_marshal_free (*(gpointer *)cpos);
10885 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10889 MONO_CHECK_ARG_NULL (src,);
10890 MONO_CHECK_ARG_NULL (type,);
10892 klass = mono_class_from_mono_type (type->type);
10893 if (!mono_class_init (klass)) {
10894 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10898 mono_struct_delete_old (klass, (char *)src);
10902 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10905 size_t s = (size_t)size;
10908 /* This returns a valid pointer for size 0 on MS.NET */
10912 res = GlobalAlloc (GMEM_FIXED, s);
10914 res = g_try_malloc (s);
10917 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10925 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10928 size_t s = (size_t)size;
10931 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10936 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10938 res = g_try_realloc (ptr, s);
10941 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10949 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10959 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10964 res = CoTaskMemAlloc (size);
10966 if ((gulong)size == 0)
10967 /* This returns a valid pointer for size 0 on MS.NET */
10970 res = g_try_malloc ((gulong)size);
10973 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10980 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10983 CoTaskMemFree (ptr);
10990 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10995 res = CoTaskMemRealloc (ptr, size);
10997 res = g_try_realloc (ptr, (gulong)size);
11000 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11007 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11009 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11013 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11015 MonoClass *klass = mono_type_get_class (type->type);
11016 if (!mono_class_init (klass)) {
11017 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11021 return mono_ftnptr_to_delegate (klass, ftn);
11025 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11027 return mono_delegate_to_ftnptr (delegate);
11031 * mono_marshal_is_loading_type_info:
11033 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11037 mono_marshal_is_loading_type_info (MonoClass *klass)
11039 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11041 return g_slist_find (loads_list, klass) != NULL;
11045 * mono_marshal_load_type_info:
11047 * Initialize klass->marshal_info using information from metadata. This function can
11048 * recursively call itself, and the caller is responsible to avoid that by calling
11049 * mono_marshal_is_loading_type_info () beforehand.
11051 * LOCKING: Acquires the loader lock.
11054 mono_marshal_load_type_info (MonoClass* klass)
11057 guint32 native_size = 0, min_align = 1, packing;
11058 MonoMarshalType *info;
11059 MonoClassField* field;
11062 GSList *loads_list;
11064 g_assert (klass != NULL);
11066 if (klass->marshal_info)
11067 return klass->marshal_info;
11069 if (!klass->inited)
11070 mono_class_init (klass);
11072 if (klass->marshal_info)
11073 return klass->marshal_info;
11076 * This function can recursively call itself, so we keep the list of classes which are
11077 * under initialization in a TLS list.
11079 g_assert (!mono_marshal_is_loading_type_info (klass));
11080 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11081 loads_list = g_slist_prepend (loads_list, klass);
11082 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11085 while ((field = mono_class_get_fields (klass, &iter))) {
11086 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11088 if (mono_field_is_deleted (field))
11093 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11095 /* The mempool is protected by the loader lock */
11096 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11097 info->num_fields = count;
11099 /* Try to find a size for this type in metadata */
11100 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11102 if (klass->parent) {
11103 int parent_size = mono_class_native_size (klass->parent, NULL);
11105 /* Add parent size to real size */
11106 native_size += parent_size;
11107 info->native_size = parent_size;
11110 packing = klass->packing_size ? klass->packing_size : 8;
11113 while ((field = mono_class_get_fields (klass, &iter))) {
11117 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11120 if (mono_field_is_deleted (field))
11122 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11123 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11124 NULL, NULL, &info->fields [j].mspec);
11126 info->fields [j].field = field;
11128 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11129 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11130 /* This field is a hack inserted by MCS to empty structures */
11135 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11136 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11137 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11138 &align, TRUE, klass->unicode);
11139 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11140 min_align = MAX (align, min_align);
11141 info->fields [j].offset = info->native_size;
11142 info->fields [j].offset += align - 1;
11143 info->fields [j].offset &= ~(align - 1);
11144 info->native_size = info->fields [j].offset + size;
11146 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11147 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11148 &align, TRUE, klass->unicode);
11149 min_align = MAX (align, min_align);
11150 info->fields [j].offset = field->offset - sizeof (MonoObject);
11151 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11157 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11158 info->native_size = MAX (native_size, info->native_size);
11160 * If the provided Size is equal or larger than the calculated size, and there
11161 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11163 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11164 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11167 min_align = MIN (min_align, packing);
11171 if (info->native_size & (min_align - 1)) {
11172 info->native_size += min_align - 1;
11173 info->native_size &= ~(min_align - 1);
11176 info->min_align = min_align;
11178 /* Update the class's blittable info, if the layouts don't match */
11179 if (info->native_size != mono_class_value_size (klass, NULL))
11180 klass->blittable = FALSE;
11182 /* If this is an array type, ensure that we have element info */
11183 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11184 mono_marshal_load_type_info (klass->element_class);
11187 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11188 loads_list = g_slist_remove (loads_list, klass);
11189 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11191 mono_marshal_lock ();
11192 if (!klass->marshal_info) {
11193 /*We do double-checking locking on marshal_info */
11194 mono_memory_barrier ();
11195 klass->marshal_info = info;
11197 mono_marshal_unlock ();
11199 return klass->marshal_info;
11203 * mono_class_native_size:
11206 * Returns: the native size of an object instance (when marshaled
11207 * to unmanaged code)
11210 mono_class_native_size (MonoClass *klass, guint32 *align)
11212 if (!klass->marshal_info) {
11213 if (mono_marshal_is_loading_type_info (klass)) {
11218 mono_marshal_load_type_info (klass);
11223 *align = klass->marshal_info->min_align;
11225 return klass->marshal_info->native_size;
11229 * mono_type_native_stack_size:
11230 * @t: the type to return the size it uses on the stack
11232 * Returns: the number of bytes required to hold an instance of this
11233 * type on the native stack
11236 mono_type_native_stack_size (MonoType *t, guint32 *align)
11240 g_assert (t != NULL);
11246 *align = sizeof (gpointer);
11247 return sizeof (gpointer);
11251 case MONO_TYPE_BOOLEAN:
11252 case MONO_TYPE_CHAR:
11263 case MONO_TYPE_STRING:
11264 case MONO_TYPE_OBJECT:
11265 case MONO_TYPE_CLASS:
11266 case MONO_TYPE_SZARRAY:
11267 case MONO_TYPE_PTR:
11268 case MONO_TYPE_FNPTR:
11269 case MONO_TYPE_ARRAY:
11270 *align = sizeof (gpointer);
11271 return sizeof (gpointer);
11276 *align = MONO_ABI_ALIGNOF (double);
11280 *align = MONO_ABI_ALIGNOF (gint64);
11282 case MONO_TYPE_GENERICINST:
11283 if (!mono_type_generic_inst_is_valuetype (t)) {
11284 *align = sizeof (gpointer);
11285 return sizeof (gpointer);
11288 case MONO_TYPE_TYPEDBYREF:
11289 case MONO_TYPE_VALUETYPE: {
11291 MonoClass *klass = mono_class_from_mono_type (t);
11293 if (klass->enumtype)
11294 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11296 size = mono_class_native_size (klass, align);
11297 *align = *align + 3;
11307 g_error ("type 0x%02x unknown", t->type);
11313 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11314 gboolean as_field, gboolean unicode)
11316 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11319 switch (native_type) {
11320 case MONO_NATIVE_BOOLEAN:
11323 case MONO_NATIVE_I1:
11324 case MONO_NATIVE_U1:
11327 case MONO_NATIVE_I2:
11328 case MONO_NATIVE_U2:
11329 case MONO_NATIVE_VARIANTBOOL:
11332 case MONO_NATIVE_I4:
11333 case MONO_NATIVE_U4:
11334 case MONO_NATIVE_ERROR:
11337 case MONO_NATIVE_I8:
11338 case MONO_NATIVE_U8:
11339 *align = MONO_ABI_ALIGNOF (gint64);
11341 case MONO_NATIVE_R4:
11344 case MONO_NATIVE_R8:
11345 *align = MONO_ABI_ALIGNOF (double);
11347 case MONO_NATIVE_INT:
11348 case MONO_NATIVE_UINT:
11349 case MONO_NATIVE_LPSTR:
11350 case MONO_NATIVE_LPWSTR:
11351 case MONO_NATIVE_LPTSTR:
11352 case MONO_NATIVE_BSTR:
11353 case MONO_NATIVE_ANSIBSTR:
11354 case MONO_NATIVE_TBSTR:
11355 case MONO_NATIVE_LPARRAY:
11356 case MONO_NATIVE_SAFEARRAY:
11357 case MONO_NATIVE_IUNKNOWN:
11358 case MONO_NATIVE_IDISPATCH:
11359 case MONO_NATIVE_INTERFACE:
11360 case MONO_NATIVE_ASANY:
11361 case MONO_NATIVE_FUNC:
11362 case MONO_NATIVE_LPSTRUCT:
11363 *align = MONO_ABI_ALIGNOF (gpointer);
11364 return sizeof (gpointer);
11365 case MONO_NATIVE_STRUCT:
11366 klass = mono_class_from_mono_type (type);
11367 if (klass == mono_defaults.object_class &&
11368 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11372 return mono_class_native_size (klass, align);
11373 case MONO_NATIVE_BYVALTSTR: {
11374 int esize = unicode ? 2: 1;
11377 return mspec->data.array_data.num_elem * esize;
11379 case MONO_NATIVE_BYVALARRAY: {
11380 // FIXME: Have to consider ArraySubType
11382 klass = mono_class_from_mono_type (type);
11383 if (klass->element_class == mono_defaults.char_class) {
11384 esize = unicode ? 2 : 1;
11387 esize = mono_class_native_size (klass->element_class, align);
11390 return mspec->data.array_data.num_elem * esize;
11392 case MONO_NATIVE_CUSTOM:
11393 *align = sizeof (gpointer);
11394 return sizeof (gpointer);
11396 case MONO_NATIVE_CURRENCY:
11397 case MONO_NATIVE_VBBYREFSTR:
11399 g_error ("native type %02x not implemented", native_type);
11402 g_assert_not_reached ();
11406 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11408 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11417 t = &o->vtable->klass->byval_arg;
11421 case MONO_TYPE_PTR:
11424 case MONO_TYPE_BOOLEAN:
11427 case MONO_TYPE_CHAR:
11432 return mono_object_unbox (o);
11434 case MONO_TYPE_STRING:
11435 switch (string_encoding) {
11436 case MONO_NATIVE_LPWSTR:
11437 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11439 case MONO_NATIVE_LPSTR:
11440 return mono_string_to_lpstr ((MonoString*)o);
11443 g_warning ("marshaling conversion %d not implemented", string_encoding);
11444 g_assert_not_reached ();
11447 case MONO_TYPE_CLASS:
11448 case MONO_TYPE_VALUETYPE: {
11449 MonoMethod *method;
11452 MonoBoolean delete_old = FALSE;
11454 klass = t->data.klass;
11456 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11459 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11460 klass->blittable || klass->enumtype))
11461 return mono_object_unbox (o);
11463 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11464 if (!mono_error_ok (&error)) {
11465 mono_error_set_pending_exception (&error);
11469 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11470 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11474 pa [2] = &delete_old;
11476 mono_runtime_invoke_checked (method, NULL, pa, &error);
11477 if (!mono_error_ok (&error)) {
11478 mono_error_set_pending_exception (&error);
11488 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11492 /* This is a JIT icall, it sets the pending exception */
11494 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11503 t = &o->vtable->klass->byval_arg;
11505 case MONO_TYPE_STRING:
11506 switch (string_encoding) {
11507 case MONO_NATIVE_LPWSTR:
11508 case MONO_NATIVE_LPSTR:
11509 mono_marshal_free (ptr);
11512 g_warning ("marshaling conversion %d not implemented", string_encoding);
11513 g_assert_not_reached ();
11516 case MONO_TYPE_CLASS:
11517 case MONO_TYPE_VALUETYPE: {
11518 klass = t->data.klass;
11520 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11521 klass->blittable || klass->enumtype))
11524 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11525 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11531 mono_runtime_invoke_checked (method, NULL, pa, &error);
11532 if (!mono_error_ok (&error)) {
11533 mono_error_set_pending_exception (&error);
11538 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11539 mono_struct_delete_old (klass, (char *)ptr);
11542 mono_marshal_free (ptr);
11551 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11553 MonoMethodSignature *sig, *csig;
11554 MonoMethodBuilder *mb;
11559 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11560 mb->method->slot = -1;
11562 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11563 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11565 sig = mono_method_signature (method);
11566 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11567 csig->generic_param_count = 0;
11569 #ifndef DISABLE_JIT
11570 mono_mb_emit_ldarg (mb, 0);
11571 for (i = 0; i < csig->param_count; i++)
11572 mono_mb_emit_ldarg (mb, i + 1);
11573 mono_mb_emit_managed_call (mb, method, NULL);
11574 mono_mb_emit_byte (mb, CEE_RET);
11576 /* We can corlib internal methods */
11577 mb->skip_visibility = TRUE;
11579 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11580 info->d.generic_array_helper.method = method;
11581 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11589 * The mono_win32_compat_* functions are implementations of inline
11590 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11591 * although not exported by kernel32.
11593 * We map the appropiate kernel32 entries to these functions using
11594 * dllmaps declared in the global etc/mono/config.
11598 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11600 if (!dest || !source)
11603 memcpy (dest, source, length);
11607 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11609 memset (dest, fill, length);
11613 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11615 if (!dest || !source)
11618 memmove (dest, source, length);
11622 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11624 memset (dest, 0, length);
11628 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11633 for (i = 0; i < len; ++i)
11637 g_assert (i < len);
11640 while (byte && !(byte & 1))
11642 g_assert (byte == 1);
11645 *bitmask = buf [i];
11649 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11651 MonoMethodBuilder *mb;
11652 MonoMethodSignature *sig, *csig;
11653 MonoExceptionClause *clause;
11658 int i, param_count, sig_size, pos_leave;
11662 // FIXME: we need to store the exception into a MonoHandle
11663 g_assert (!mono_threads_is_coop_enabled ());
11665 klass = method->klass;
11666 image = method->klass->image;
11668 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11670 if ((res = mono_marshal_find_in_cache (cache, method)))
11673 sig = mono_method_signature (method);
11674 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11676 /* add "this" and exception param */
11677 param_count = sig->param_count + sig->hasthis + 1;
11679 /* dup & extend signature */
11680 csig = mono_metadata_signature_alloc (image, param_count);
11681 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11682 memcpy (csig, sig, sig_size);
11683 csig->param_count = param_count;
11686 csig->call_convention = MONO_CALL_DEFAULT;
11688 if (sig->hasthis) {
11690 csig->params [0] = &klass->byval_arg;
11691 /* move params up by one */
11692 for (i = 0; i < sig->param_count; i++)
11693 csig->params [i + 1] = sig->params [i];
11696 /* setup exception param as byref+[out] */
11697 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11698 &mono_defaults.exception_class->byval_arg);
11699 csig->params [param_count - 1]->byref = 1;
11700 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11702 /* convert struct return to object */
11703 if (MONO_TYPE_ISSTRUCT (sig->ret))
11704 csig->ret = &mono_defaults.object_class->byval_arg;
11706 #ifndef DISABLE_JIT
11707 /* local 0 (temp for exception object) */
11708 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11710 /* local 1 (temp for result) */
11711 if (!MONO_TYPE_IS_VOID (sig->ret))
11712 mono_mb_add_local (mb, sig->ret);
11714 /* clear exception arg */
11715 mono_mb_emit_ldarg (mb, param_count - 1);
11716 mono_mb_emit_byte (mb, CEE_LDNULL);
11717 mono_mb_emit_byte (mb, CEE_STIND_REF);
11720 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11721 clause->try_offset = mono_mb_get_label (mb);
11723 /* push method's args */
11724 for (i = 0; i < param_count - 1; i++) {
11728 mono_mb_emit_ldarg (mb, i);
11730 /* get the byval type of the param */
11731 klass = mono_class_from_mono_type (csig->params [i]);
11732 type = &klass->byval_arg;
11734 /* unbox struct args */
11735 if (MONO_TYPE_ISSTRUCT (type)) {
11736 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11738 /* byref args & and the "this" arg must remain a ptr.
11739 Otherwise make a copy of the value type */
11740 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11741 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11743 csig->params [i] = &mono_defaults.object_class->byval_arg;
11748 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11749 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11751 mono_mb_emit_op (mb, CEE_CALL, method);
11753 /* save result at local 1 */
11754 if (!MONO_TYPE_IS_VOID (sig->ret))
11755 mono_mb_emit_stloc (mb, 1);
11757 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11760 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11761 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11762 clause->data.catch_class = mono_defaults.object_class;
11764 clause->handler_offset = mono_mb_get_label (mb);
11766 /* store exception at local 0 */
11767 mono_mb_emit_stloc (mb, 0);
11768 mono_mb_emit_ldarg (mb, param_count - 1);
11769 mono_mb_emit_ldloc (mb, 0);
11770 mono_mb_emit_byte (mb, CEE_STIND_REF);
11771 mono_mb_emit_branch (mb, CEE_LEAVE);
11773 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11775 mono_mb_set_clauses (mb, 1, clause);
11777 mono_mb_patch_branch (mb, pos_leave);
11780 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11781 mono_mb_emit_ldloc (mb, 1);
11783 /* box the return value */
11784 if (MONO_TYPE_ISSTRUCT (sig->ret))
11785 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11788 mono_mb_emit_byte (mb, CEE_RET);
11791 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11798 * mono_marshal_free_dynamic_wrappers:
11800 * Free wrappers of the dynamic method METHOD.
11803 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11805 MonoImage *image = method->klass->image;
11807 g_assert (method_is_dynamic (method));
11809 /* This could be called during shutdown */
11810 if (marshal_mutex_initialized)
11811 mono_marshal_lock ();
11813 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11814 * they could be shared with other methods ?
11816 if (image->wrapper_caches.runtime_invoke_direct_cache)
11817 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11818 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11819 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11820 // FIXME: Need to clear the caches in other images as well
11821 if (image->delegate_bound_static_invoke_cache)
11822 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11824 if (marshal_mutex_initialized)
11825 mono_marshal_unlock ();
11829 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11831 g_assert (ftnptr_eh_callback);
11832 ftnptr_eh_callback (gchandle);
11836 ftnptr_eh_callback_default (guint32 gchandle)
11838 MonoException *exc;
11839 gpointer stackdata;
11841 g_assert (gchandle >= 0);
11843 mono_threads_reset_blocking_start_unbalanced (&stackdata);
11845 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11847 mono_gchandle_free (gchandle);
11849 mono_raise_exception (exc);
11853 * mono_install_ftnptr_eh_callback:
11855 * Install a callback that should be called when there is a managed exception
11856 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11857 * managed exception to a native exception, to properly unwind the native
11858 * stack; this native exception will then be converted back to a managed
11859 * exception in their managed-to-native wrapper.
11862 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11864 ftnptr_eh_callback = callback;