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 MonoFtnPtrEHCallback ftnptr_eh_callback;
85 delegate_hash_table_add (MonoDelegate *d);
88 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
91 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
94 mono_struct_delete_old (MonoClass *klass, char *ptr);
97 mono_marshal_string_to_utf16 (MonoString *s);
100 mono_marshal_string_to_utf16_copy (MonoString *s);
103 mono_string_to_lpstr (MonoString *string_obj);
105 static MonoStringBuilder *
106 mono_string_utf8_to_builder2 (char *text);
108 static MonoStringBuilder *
109 mono_string_utf16_to_builder2 (gunichar2 *text);
112 mono_string_new_len_wrapper (const char *text, guint length);
115 mono_string_from_byvalstr (const char *data, int len);
118 mono_string_from_byvalwstr (gunichar2 *data, int len);
121 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
124 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
127 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
130 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
132 static MonoAsyncResult *
133 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
139 mono_marshal_set_last_error_windows (int error);
142 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
144 static void init_safe_handle (void);
147 ves_icall_marshal_alloc (gulong size);
150 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
153 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
156 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
159 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
162 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
165 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
168 mono_delegate_to_ftnptr (MonoDelegate *delegate);
171 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
174 mono_array_to_savearray (MonoArray *array);
177 mono_array_to_lparray (MonoArray *array);
180 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
183 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
186 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
189 mono_array_to_savearray (MonoArray *array);
192 mono_array_to_lparray (MonoArray *array);
195 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
198 mono_marshal_has_ftnptr_eh_callback (void);
201 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
203 /* Lazy class loading functions */
204 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
205 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
206 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
207 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
209 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
210 static MonoMethod *sh_dangerous_add_ref;
211 static MonoMethod *sh_dangerous_release;
216 sh_dangerous_add_ref = mono_class_get_method_from_name (
217 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
218 sh_dangerous_release = mono_class_get_method_from_name (
219 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
223 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
225 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
227 mono_register_jit_icall (func, name, sig, no_wrapper);
231 mono_signature_no_pinvoke (MonoMethod *method)
233 MonoMethodSignature *sig = mono_method_signature (method);
235 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
236 sig->pinvoke = FALSE;
243 mono_marshal_init_tls (void)
245 mono_native_tls_alloc (&last_error_tls_id, NULL);
246 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
250 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
253 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
254 mono_error_set_pending_exception (&error);
259 mono_marshal_init (void)
261 static gboolean module_initialized = FALSE;
263 if (!module_initialized) {
264 module_initialized = TRUE;
265 mono_os_mutex_init_recursive (&marshal_mutex);
266 marshal_mutex_initialized = TRUE;
268 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
269 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
270 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
271 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
272 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
273 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
274 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
275 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
276 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
277 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
278 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
279 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
280 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
281 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
282 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
283 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
284 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
285 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
286 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
287 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
288 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
289 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
290 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
291 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
292 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
293 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
294 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
295 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
296 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
297 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
298 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
299 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
300 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
301 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
302 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
303 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
304 register_icall (g_free, "g_free", "void ptr", FALSE);
305 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
306 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
307 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
308 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
309 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
310 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
311 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
312 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
313 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
314 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
315 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
316 register_icall (mono_marshal_has_ftnptr_eh_callback, "mono_marshal_has_ftnptr_eh_callback", "int32", TRUE);
317 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
319 mono_cominterop_init ();
320 mono_remoting_init ();
322 if (mono_threads_is_coop_enabled ()) {
323 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
324 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
325 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
326 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
332 mono_marshal_cleanup (void)
334 mono_cominterop_cleanup ();
336 mono_native_tls_free (load_type_info_tls_id);
337 mono_native_tls_free (last_error_tls_id);
338 mono_os_mutex_destroy (&marshal_mutex);
339 marshal_mutex_initialized = FALSE;
343 mono_marshal_lock_internal (void)
345 mono_marshal_lock ();
349 mono_marshal_unlock_internal (void)
351 mono_marshal_unlock ();
354 /* This is a JIT icall, it sets the pending exception and return NULL on error */
356 mono_delegate_to_ftnptr (MonoDelegate *delegate)
359 MonoMethod *method, *wrapper;
361 uint32_t target_handle = 0;
366 if (delegate->delegate_trampoline)
367 return delegate->delegate_trampoline;
369 klass = ((MonoObject *)delegate)->vtable->klass;
370 g_assert (klass->delegate);
372 method = delegate->method;
373 if (delegate->method_is_virtual)
374 method = mono_object_get_virtual_method (delegate->target, method);
376 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
377 const char *exc_class, *exc_arg;
380 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
382 g_assert (exc_class);
383 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
389 if (delegate->target) {
390 /* Produce a location which can be embedded in JITted code */
391 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
394 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
396 delegate->delegate_trampoline = mono_compile_method (wrapper);
398 // Add the delegate to the delegate hash table
399 delegate_hash_table_add (delegate);
401 /* when the object is collected, collect the dynamic method, too */
402 mono_object_register_finalizer ((MonoObject*)delegate, &error);
403 if (!mono_error_ok (&error)) {
404 mono_error_set_pending_exception (&error);
408 return delegate->delegate_trampoline;
412 * this hash table maps from a delegate trampoline object to a weak reference
413 * of the delegate. As an optimizations with a non-moving GC we store the
414 * object pointer itself, otherwise we use a GC handle.
416 static GHashTable *delegate_hash_table;
419 delegate_hash_table_new (void) {
420 return g_hash_table_new (NULL, NULL);
424 delegate_hash_table_remove (MonoDelegate *d)
426 guint32 gchandle = 0;
428 mono_marshal_lock ();
429 if (delegate_hash_table == NULL)
430 delegate_hash_table = delegate_hash_table_new ();
431 if (mono_gc_is_moving ())
432 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
433 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
434 mono_marshal_unlock ();
435 if (gchandle && mono_gc_is_moving ())
436 mono_gchandle_free (gchandle);
440 delegate_hash_table_add (MonoDelegate *d)
443 guint32 old_gchandle;
445 mono_marshal_lock ();
446 if (delegate_hash_table == NULL)
447 delegate_hash_table = delegate_hash_table_new ();
448 if (mono_gc_is_moving ()) {
449 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
450 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
451 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
453 mono_gchandle_free (old_gchandle);
455 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
457 mono_marshal_unlock ();
461 * mono_marshal_use_aot_wrappers:
463 * Instructs this module to use AOT compatible wrappers.
466 mono_marshal_use_aot_wrappers (gboolean use)
468 use_aot_wrappers = use;
472 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
475 MonoCustomAttrInfo *cinfo;
476 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
478 /* The attribute is only available in Net 2.0 */
479 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
481 * The pinvoke attributes are stored in a real custom attribute so we have to
484 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
485 if (!mono_error_ok (&error)) {
486 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
487 mono_error_cleanup (&error);
489 if (cinfo && !mono_runtime_get_no_exec ()) {
490 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
492 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
494 if (!mono_error_ok (&error)) {
495 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
496 mono_error_cleanup (&error);
500 mono_custom_attrs_free (cinfo);
505 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
507 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
516 mono_marshal_lock ();
517 if (delegate_hash_table == NULL)
518 delegate_hash_table = delegate_hash_table_new ();
520 if (mono_gc_is_moving ()) {
521 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
522 mono_marshal_unlock ();
524 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
528 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
529 mono_marshal_unlock ();
532 /* This is a native function, so construct a delegate for it */
533 MonoMethodSignature *sig;
535 MonoMarshalSpec **mspecs;
536 MonoMethod *invoke = mono_get_delegate_invoke (klass);
537 MonoMethodPInvoke piinfo;
538 MonoObject *this_obj;
541 if (use_aot_wrappers) {
542 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
543 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
544 if (!is_ok (&error)) {
545 mono_error_set_pending_exception (&error);
549 memset (&piinfo, 0, sizeof (piinfo));
550 parse_unmanaged_function_pointer_attr (klass, &piinfo);
552 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
553 mono_method_get_marshal_info (invoke, mspecs);
554 /* Freed below so don't alloc from mempool */
555 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
558 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
561 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
563 mono_metadata_free_marshal_spec (mspecs [i]);
568 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
569 if (!mono_error_ok (&error)) {
570 mono_error_set_pending_exception (&error);
573 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
576 if (d->object.vtable->domain != mono_domain_get ()) {
577 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
585 mono_delegate_free_ftnptr (MonoDelegate *delegate)
590 delegate_hash_table_remove (delegate);
592 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
594 if (!delegate->target) {
595 /* The wrapper method is shared between delegates -> no need to free it */
604 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
607 method = mono_jit_info_get_method (ji);
608 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
610 /*the target gchandle is the first entry after size and the wrapper itself.*/
611 gchandle = GPOINTER_TO_UINT (method_data [2]);
614 mono_gchandle_free (gchandle);
616 mono_runtime_free_method (mono_object_domain (delegate), method);
620 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
622 mono_string_from_byvalstr (const char *data, int max_len)
625 MonoDomain *domain = mono_domain_get ();
631 while (len < max_len - 1 && data [len])
634 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
635 mono_error_set_pending_exception (&error);
639 /* This is a JIT icall, it sets the pending exception and return NULL on error */
641 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
644 MonoString *res = NULL;
645 MonoDomain *domain = mono_domain_get ();
651 while (data [len]) len++;
653 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
654 if (!mono_error_ok (&error)) {
655 mono_error_set_pending_exception (&error);
662 mono_array_to_savearray (MonoArray *array)
667 g_assert_not_reached ();
672 mono_array_to_lparray (MonoArray *array)
675 gpointer *nativeArray = NULL;
676 int nativeArraySize = 0;
686 klass = array->obj.vtable->klass;
688 switch (klass->element_class->byval_arg.type) {
690 g_assert_not_reached ();
692 case MONO_TYPE_CLASS:
693 nativeArraySize = array->max_length;
694 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
695 for(i = 0; i < nativeArraySize; ++i)
696 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
699 case MONO_TYPE_BOOLEAN:
712 case MONO_TYPE_VALUETYPE:
716 case MONO_TYPE_GENERICINST:
717 case MONO_TYPE_OBJECT:
718 case MONO_TYPE_ARRAY:
719 case MONO_TYPE_SZARRAY:
720 case MONO_TYPE_STRING:
722 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
723 g_assert_not_reached ();
726 return array->vector;
730 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
741 klass = array->obj.vtable->klass;
743 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
744 for(i = 0; i < array->max_length; ++i)
745 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
752 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
754 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
756 if (elclass == mono_defaults.byte_class) {
757 GError *error = NULL;
761 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
764 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
768 g_error_free (error);
771 g_assert_not_reached ();
775 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
777 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
780 /* This is a JIT icall, it sets the pending exception and returns on error */
782 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
784 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
786 if (elclass == mono_defaults.byte_class) {
788 GError *error = NULL;
790 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
792 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
793 g_error_free (error);
797 memcpy (native_arr, as, MIN (strlen (as), elnum));
800 g_assert_not_reached ();
805 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
807 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
810 static MonoStringBuilder *
811 mono_string_builder_new (int starting_string_length)
813 static MonoClass *string_builder_class;
814 static MonoMethod *sb_ctor;
815 static void *args [1];
818 int initial_len = starting_string_length;
824 MonoMethodDesc *desc;
827 string_builder_class = mono_class_get_string_builder_class ();
828 g_assert (string_builder_class);
829 desc = mono_method_desc_new (":.ctor(int)", FALSE);
830 m = mono_method_desc_search_in_class (desc, string_builder_class);
832 mono_method_desc_free (desc);
833 mono_memory_barrier ();
837 // We make a new array in the _to_builder function, so this
838 // array will always be garbage collected.
839 args [0] = &initial_len;
841 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
842 mono_error_assert_ok (&error);
845 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
846 g_assert (exc == NULL);
847 mono_error_assert_ok (&error);
849 g_assert (sb->chunkChars->max_length >= initial_len);
855 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
857 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
858 gunichar2 *charSrc = (gunichar2 *)text;
859 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
861 sb->chunkLength = string_len;
867 mono_string_utf16_to_builder2 (gunichar2 *text)
873 for (len = 0; text [len] != 0; ++len);
875 MonoStringBuilder *sb = mono_string_builder_new (len);
876 mono_string_utf16_to_builder (sb, text);
882 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
887 int len = strlen (text);
888 if (len > mono_string_builder_capacity (sb))
889 len = mono_string_builder_capacity (sb);
891 GError *error = NULL;
893 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
896 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
897 mono_string_utf16_to_builder_copy (sb, ut, copied);
899 g_error_free (error);
905 mono_string_utf8_to_builder2 (char *text)
910 int len = strlen (text);
911 MonoStringBuilder *sb = mono_string_builder_new (len);
912 mono_string_utf8_to_builder (sb, text);
919 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
925 for (len = 0; text [len] != 0; ++len);
927 if (len > mono_string_builder_capacity (sb))
928 len = mono_string_builder_capacity (sb);
930 mono_string_utf16_to_builder_copy (sb, text, len);
934 * mono_string_builder_to_utf8:
935 * @sb: the string builder
937 * Converts to utf8 the contents of the MonoStringBuilder.
939 * Returns: a utf8 string with the contents of the StringBuilder.
941 * The return value must be released with g_free.
943 * This is a JIT icall, it sets the pending exception and returns NULL on error.
946 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
949 GError *gerror = NULL;
954 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
956 guint str_len = mono_string_builder_string_length (sb);
958 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
961 g_error_free (gerror);
963 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
966 guint len = mono_string_builder_capacity (sb) + 1;
967 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
968 if (!mono_error_ok (&error)) {
971 mono_error_set_pending_exception (&error);
975 g_assert (str_len < len);
976 memcpy (res, tmp, str_len * sizeof (gchar));
986 * mono_string_builder_to_utf16:
987 * @sb: the string builder
989 * Converts to utf16 the contents of the MonoStringBuilder.
991 * Returns: a utf16 string with the contents of the StringBuilder.
993 * The return value must not be freed.
994 * This is a JIT icall, it sets the pending exception and returns NULL on error.
997 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1004 g_assert (sb->chunkChars);
1006 guint len = mono_string_builder_capacity (sb);
1011 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1012 if (!mono_error_ok (&error)) {
1013 mono_error_set_pending_exception (&error);
1022 MonoStringBuilder* chunk = sb;
1024 if (chunk->chunkLength > 0) {
1025 // Check that we will not overrun our boundaries.
1026 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1028 if (chunk->chunkLength <= len) {
1029 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1031 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1034 len -= chunk->chunkLength;
1036 chunk = chunk->chunkPrevious;
1037 } while (chunk != NULL);
1042 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1044 mono_string_to_lpstr (MonoString *s)
1049 GError *error = NULL;
1055 as = CoTaskMemAlloc (1);
1060 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1062 MonoException *exc = mono_get_exception_argument ("string", error->message);
1063 g_error_free (error);
1064 mono_set_pending_exception (exc);
1067 as = CoTaskMemAlloc (len + 1);
1068 memcpy (as, tmp, len + 1);
1073 return mono_string_to_utf8 (s);
1078 mono_string_to_ansibstr (MonoString *string_obj)
1080 g_error ("UnmanagedMarshal.BStr is not implemented.");
1085 * mono_string_to_byvalstr:
1086 * @dst: Where to store the null-terminated utf8 decoded string.
1087 * @src: the MonoString to copy.
1088 * @size: the maximum number of bytes to copy.
1090 * Copies the MonoString pointed to by @src as a utf8 string
1091 * into @dst, it copies at most @size bytes into the destination.
1094 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1099 g_assert (dst != NULL);
1100 g_assert (size > 0);
1102 memset (dst, 0, size);
1106 s = mono_string_to_utf8 (src);
1107 len = MIN (size, strlen (s));
1110 memcpy (dst, s, len);
1115 * mono_string_to_byvalwstr:
1116 * @dst: Where to store the null-terminated utf16 decoded string.
1117 * @src: the MonoString to copy.
1118 * @size: the maximum number of bytes to copy.
1120 * Copies the MonoString pointed to by @src as a utf16 string into
1121 * @dst, it copies at most @size bytes into the destination (including
1122 * a terminating 16-bit zero terminator).
1125 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1129 g_assert (dst != NULL);
1130 g_assert (size > 1);
1133 memset (dst, 0, size * 2);
1137 len = MIN (size, (mono_string_length (src)));
1138 memcpy (dst, mono_string_chars (src), size * 2);
1139 if (size <= mono_string_length (src))
1141 *((gunichar2 *) dst + len) = 0;
1144 /* this is an icall, it sets the pending exception and returns NULL on error */
1146 mono_string_new_len_wrapper (const char *text, guint length)
1149 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1150 mono_error_set_pending_exception (&error);
1157 * mono_mb_emit_exception_marshal_directive:
1159 * This function assumes ownership of MSG, which should be malloc-ed.
1162 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1167 s = mono_image_strdup (mb->method->klass->image, msg);
1172 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1175 #endif /* !DISABLE_JIT */
1178 mono_type_to_ldind (MonoType *type)
1184 switch (type->type) {
1186 return CEE_LDIND_I1;
1188 case MONO_TYPE_BOOLEAN:
1189 return CEE_LDIND_U1;
1191 return CEE_LDIND_I2;
1193 case MONO_TYPE_CHAR:
1194 return CEE_LDIND_U2;
1196 return CEE_LDIND_I4;
1198 return CEE_LDIND_U4;
1202 case MONO_TYPE_FNPTR:
1204 case MONO_TYPE_CLASS:
1205 case MONO_TYPE_STRING:
1206 case MONO_TYPE_OBJECT:
1207 case MONO_TYPE_SZARRAY:
1208 case MONO_TYPE_ARRAY:
1209 return CEE_LDIND_REF;
1212 return CEE_LDIND_I8;
1214 return CEE_LDIND_R4;
1216 return CEE_LDIND_R8;
1217 case MONO_TYPE_VALUETYPE:
1218 if (type->data.klass->enumtype) {
1219 type = mono_class_enum_basetype (type->data.klass);
1223 case MONO_TYPE_TYPEDBYREF:
1225 case MONO_TYPE_GENERICINST:
1226 type = &type->data.generic_class->container_class->byval_arg;
1229 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1235 mono_type_to_stind (MonoType *type)
1238 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1242 switch (type->type) {
1245 case MONO_TYPE_BOOLEAN:
1246 return CEE_STIND_I1;
1249 case MONO_TYPE_CHAR:
1250 return CEE_STIND_I2;
1253 return CEE_STIND_I4;
1257 case MONO_TYPE_FNPTR:
1259 case MONO_TYPE_CLASS:
1260 case MONO_TYPE_STRING:
1261 case MONO_TYPE_OBJECT:
1262 case MONO_TYPE_SZARRAY:
1263 case MONO_TYPE_ARRAY:
1264 return CEE_STIND_REF;
1267 return CEE_STIND_I8;
1269 return CEE_STIND_R4;
1271 return CEE_STIND_R8;
1272 case MONO_TYPE_VALUETYPE:
1273 if (type->data.klass->enumtype) {
1274 type = mono_class_enum_basetype (type->data.klass);
1278 case MONO_TYPE_TYPEDBYREF:
1280 case MONO_TYPE_GENERICINST:
1281 type = &type->data.generic_class->container_class->byval_arg;
1284 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1292 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1295 case MONO_MARSHAL_CONV_BOOL_I4:
1296 mono_mb_emit_ldloc (mb, 1);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1299 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1300 mono_mb_emit_byte (mb, 3);
1301 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1302 mono_mb_emit_byte (mb, CEE_BR_S);
1303 mono_mb_emit_byte (mb, 1);
1304 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1305 mono_mb_emit_byte (mb, CEE_STIND_I1);
1307 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1308 mono_mb_emit_ldloc (mb, 1);
1309 mono_mb_emit_ldloc (mb, 0);
1310 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1311 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1312 mono_mb_emit_byte (mb, 3);
1313 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1314 mono_mb_emit_byte (mb, CEE_BR_S);
1315 mono_mb_emit_byte (mb, 1);
1316 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1317 mono_mb_emit_byte (mb, CEE_STIND_I1);
1319 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1320 MonoClass *eklass = NULL;
1323 if (type->type == MONO_TYPE_SZARRAY) {
1324 eklass = type->data.klass;
1326 g_assert_not_reached ();
1329 esize = mono_class_native_size (eklass, NULL);
1331 /* create a new array */
1332 mono_mb_emit_ldloc (mb, 1);
1333 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1334 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 if (eklass->blittable) {
1338 /* copy the elements */
1339 mono_mb_emit_ldloc (mb, 1);
1340 mono_mb_emit_byte (mb, CEE_LDIND_I);
1341 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1342 mono_mb_emit_byte (mb, CEE_ADD);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1345 mono_mb_emit_byte (mb, CEE_PREFIX1);
1346 mono_mb_emit_byte (mb, CEE_CPBLK);
1349 int array_var, src_var, dst_var, index_var;
1350 guint32 label2, label3;
1352 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1353 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1354 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1359 mono_mb_emit_stloc (mb, array_var);
1361 /* save the old src pointer */
1362 mono_mb_emit_ldloc (mb, 0);
1363 mono_mb_emit_stloc (mb, src_var);
1364 /* save the old dst pointer */
1365 mono_mb_emit_ldloc (mb, 1);
1366 mono_mb_emit_stloc (mb, dst_var);
1368 /* Emit marshalling loop */
1369 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1370 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1371 mono_mb_emit_stloc (mb, index_var);
1374 label2 = mono_mb_get_label (mb);
1375 mono_mb_emit_ldloc (mb, index_var);
1376 mono_mb_emit_ldloc (mb, array_var);
1377 mono_mb_emit_byte (mb, CEE_LDLEN);
1378 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1380 /* src is already set */
1383 mono_mb_emit_ldloc (mb, array_var);
1384 mono_mb_emit_ldloc (mb, index_var);
1385 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1386 mono_mb_emit_stloc (mb, 1);
1388 /* Do the conversion */
1389 emit_struct_conv (mb, eklass, TRUE);
1392 mono_mb_emit_add_to_local (mb, index_var, 1);
1394 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1396 mono_mb_patch_branch (mb, label3);
1398 /* restore the old src pointer */
1399 mono_mb_emit_ldloc (mb, src_var);
1400 mono_mb_emit_stloc (mb, 0);
1401 /* restore the old dst pointer */
1402 mono_mb_emit_ldloc (mb, dst_var);
1403 mono_mb_emit_stloc (mb, 1);
1407 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1408 MonoClass *eclass = mono_defaults.char_class;
1410 /* create a new array */
1411 mono_mb_emit_ldloc (mb, 1);
1412 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1413 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1414 mono_mb_emit_byte (mb, CEE_STIND_REF);
1416 mono_mb_emit_ldloc (mb, 1);
1417 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1418 mono_mb_emit_ldloc (mb, 0);
1419 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1420 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1423 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1424 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1425 mono_mb_emit_ldloc (mb, 1);
1426 mono_mb_emit_ldloc (mb, 0);
1427 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1428 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1434 mono_mb_emit_byte (mb, CEE_STIND_REF);
1436 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1437 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1438 mono_mb_emit_ldloc (mb, 1);
1439 mono_mb_emit_ldloc (mb, 0);
1440 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1441 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_icall (mb, mono_string_from_utf16);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 case MONO_MARSHAL_CONV_STR_LPTSTR:
1450 mono_mb_emit_ldloc (mb, 1);
1451 mono_mb_emit_ldloc (mb, 0);
1452 mono_mb_emit_byte (mb, CEE_LDIND_I);
1454 mono_mb_emit_icall (mb, mono_string_from_utf16);
1456 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1458 mono_mb_emit_byte (mb, CEE_STIND_REF);
1460 case MONO_MARSHAL_CONV_STR_LPSTR:
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_byte (mb, CEE_LDIND_I);
1464 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1465 mono_mb_emit_byte (mb, CEE_STIND_REF);
1467 case MONO_MARSHAL_CONV_STR_LPWSTR:
1468 mono_mb_emit_ldloc (mb, 1);
1469 mono_mb_emit_ldloc (mb, 0);
1470 mono_mb_emit_byte (mb, CEE_LDIND_I);
1471 mono_mb_emit_icall (mb, mono_string_from_utf16);
1472 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1475 MonoClass *klass = mono_class_from_mono_type (type);
1476 int src_var, dst_var;
1478 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1479 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1481 /* *dst = new object */
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1484 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1485 mono_mb_emit_byte (mb, CEE_STIND_REF);
1487 /* save the old src pointer */
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_stloc (mb, src_var);
1490 /* save the old dst pointer */
1491 mono_mb_emit_ldloc (mb, 1);
1492 mono_mb_emit_stloc (mb, dst_var);
1494 /* dst = pointer to newly created object data */
1495 mono_mb_emit_ldloc (mb, 1);
1496 mono_mb_emit_byte (mb, CEE_LDIND_I);
1497 mono_mb_emit_icon (mb, sizeof (MonoObject));
1498 mono_mb_emit_byte (mb, CEE_ADD);
1499 mono_mb_emit_stloc (mb, 1);
1501 emit_struct_conv (mb, klass, TRUE);
1503 /* restore the old src pointer */
1504 mono_mb_emit_ldloc (mb, src_var);
1505 mono_mb_emit_stloc (mb, 0);
1506 /* restore the old dst pointer */
1507 mono_mb_emit_ldloc (mb, dst_var);
1508 mono_mb_emit_stloc (mb, 1);
1511 case MONO_MARSHAL_CONV_DEL_FTN: {
1512 MonoClass *klass = mono_class_from_mono_type (type);
1514 mono_mb_emit_ldloc (mb, 1);
1515 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1516 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1517 mono_mb_emit_ldloc (mb, 0);
1518 mono_mb_emit_byte (mb, CEE_LDIND_I);
1519 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1520 mono_mb_emit_byte (mb, CEE_STIND_REF);
1523 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1524 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1528 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1529 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1530 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1531 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1533 #endif /* DISABLE_COM */
1535 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1537 * Passing SafeHandles as ref does not allow the unmanaged code
1538 * to change the SafeHandle value. If the value is changed,
1539 * we should issue a diagnostic exception (NotSupportedException)
1540 * that informs the user that changes to handles in unmanaged code
1543 * Since we currently have no access to the original
1544 * SafeHandle that was used during the marshalling,
1545 * for now we just ignore this, and ignore/discard any
1546 * changes that might have happened to the handle.
1551 case MONO_MARSHAL_CONV_HANDLEREF: {
1553 * Passing HandleRefs in a struct that is ref()ed does not
1554 * copy the values back to the HandleRef
1559 case MONO_MARSHAL_CONV_STR_BSTR:
1560 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1561 case MONO_MARSHAL_CONV_STR_TBSTR:
1562 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1564 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1566 mono_mb_emit_exception_marshal_directive (mb, msg);
1573 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1576 if (!ind_store_type)
1577 ind_store_type = &dummy;
1578 *ind_store_type = CEE_STIND_I;
1580 case MONO_MARSHAL_CONV_STR_LPWSTR:
1581 return mono_marshal_string_to_utf16;
1582 case MONO_MARSHAL_CONV_LPWSTR_STR:
1583 *ind_store_type = CEE_STIND_REF;
1584 return mono_string_from_utf16;
1585 case MONO_MARSHAL_CONV_LPTSTR_STR:
1586 *ind_store_type = CEE_STIND_REF;
1587 return mono_string_new_wrapper;
1588 case MONO_MARSHAL_CONV_LPSTR_STR:
1589 *ind_store_type = CEE_STIND_REF;
1590 return mono_string_new_wrapper;
1591 case MONO_MARSHAL_CONV_STR_LPTSTR:
1593 return mono_marshal_string_to_utf16;
1595 return mono_string_to_lpstr;
1597 case MONO_MARSHAL_CONV_STR_LPSTR:
1598 return mono_string_to_lpstr;
1599 case MONO_MARSHAL_CONV_STR_BSTR:
1600 return mono_string_to_bstr;
1601 case MONO_MARSHAL_CONV_BSTR_STR:
1602 *ind_store_type = CEE_STIND_REF;
1603 return mono_string_from_bstr_icall;
1604 case MONO_MARSHAL_CONV_STR_TBSTR:
1605 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1606 return mono_string_to_ansibstr;
1607 case MONO_MARSHAL_CONV_SB_LPSTR:
1608 return mono_string_builder_to_utf8;
1609 case MONO_MARSHAL_CONV_SB_LPTSTR:
1611 return mono_string_builder_to_utf16;
1613 return mono_string_builder_to_utf8;
1615 case MONO_MARSHAL_CONV_SB_LPWSTR:
1616 return mono_string_builder_to_utf16;
1617 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1618 return mono_array_to_savearray;
1619 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1620 return mono_array_to_lparray;
1621 case MONO_MARSHAL_FREE_LPARRAY:
1622 return mono_free_lparray;
1623 case MONO_MARSHAL_CONV_DEL_FTN:
1624 return mono_delegate_to_ftnptr;
1625 case MONO_MARSHAL_CONV_FTN_DEL:
1626 *ind_store_type = CEE_STIND_REF;
1627 return mono_ftnptr_to_delegate;
1628 case MONO_MARSHAL_CONV_LPSTR_SB:
1629 *ind_store_type = CEE_STIND_REF;
1630 return mono_string_utf8_to_builder;
1631 case MONO_MARSHAL_CONV_LPTSTR_SB:
1632 *ind_store_type = CEE_STIND_REF;
1634 return mono_string_utf16_to_builder;
1636 return mono_string_utf8_to_builder;
1638 case MONO_MARSHAL_CONV_LPWSTR_SB:
1639 *ind_store_type = CEE_STIND_REF;
1640 return mono_string_utf16_to_builder;
1641 case MONO_MARSHAL_FREE_ARRAY:
1642 return mono_marshal_free_array;
1643 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1644 return mono_string_to_byvalstr;
1645 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1646 return mono_string_to_byvalwstr;
1648 g_assert_not_reached ();
1655 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1661 case MONO_MARSHAL_CONV_BOOL_I4:
1662 mono_mb_emit_ldloc (mb, 1);
1663 mono_mb_emit_ldloc (mb, 0);
1664 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1665 mono_mb_emit_byte (mb, CEE_STIND_I4);
1667 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1668 mono_mb_emit_ldloc (mb, 1);
1669 mono_mb_emit_ldloc (mb, 0);
1670 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1671 mono_mb_emit_byte (mb, CEE_NEG);
1672 mono_mb_emit_byte (mb, CEE_STIND_I2);
1674 case MONO_MARSHAL_CONV_STR_LPWSTR:
1675 case MONO_MARSHAL_CONV_STR_LPSTR:
1676 case MONO_MARSHAL_CONV_STR_LPTSTR:
1677 case MONO_MARSHAL_CONV_STR_BSTR:
1678 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1679 case MONO_MARSHAL_CONV_STR_TBSTR: {
1682 /* free space if free == true */
1683 mono_mb_emit_ldloc (mb, 2);
1684 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1685 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_byte (mb, CEE_LDIND_I);
1687 mono_mb_emit_icall (mb, g_free);
1688 mono_mb_patch_short_branch (mb, pos);
1690 mono_mb_emit_ldloc (mb, 1);
1691 mono_mb_emit_ldloc (mb, 0);
1692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1693 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1694 mono_mb_emit_byte (mb, stind_op);
1697 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1698 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1699 case MONO_MARSHAL_CONV_DEL_FTN:
1700 mono_mb_emit_ldloc (mb, 1);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1703 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1704 mono_mb_emit_byte (mb, stind_op);
1706 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1707 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1710 mono_mb_emit_ldloc (mb, 1); /* dst */
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1713 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1714 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1717 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1718 MonoClass *eklass = NULL;
1721 if (type->type == MONO_TYPE_SZARRAY) {
1722 eklass = type->data.klass;
1724 g_assert_not_reached ();
1727 if (eklass->valuetype)
1728 esize = mono_class_native_size (eklass, NULL);
1730 esize = sizeof (gpointer);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1734 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1736 if (eklass->blittable) {
1737 mono_mb_emit_ldloc (mb, 1);
1738 mono_mb_emit_ldloc (mb, 0);
1739 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1740 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1741 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1742 mono_mb_emit_byte (mb, CEE_PREFIX1);
1743 mono_mb_emit_byte (mb, CEE_CPBLK);
1745 int array_var, src_var, dst_var, index_var;
1746 guint32 label2, label3;
1748 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1749 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1750 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1755 mono_mb_emit_stloc (mb, array_var);
1757 /* save the old src pointer */
1758 mono_mb_emit_ldloc (mb, 0);
1759 mono_mb_emit_stloc (mb, src_var);
1760 /* save the old dst pointer */
1761 mono_mb_emit_ldloc (mb, 1);
1762 mono_mb_emit_stloc (mb, dst_var);
1764 /* Emit marshalling loop */
1765 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1766 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1767 mono_mb_emit_stloc (mb, index_var);
1770 label2 = mono_mb_get_label (mb);
1771 mono_mb_emit_ldloc (mb, index_var);
1772 mono_mb_emit_ldloc (mb, array_var);
1773 mono_mb_emit_byte (mb, CEE_LDLEN);
1774 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1777 mono_mb_emit_ldloc (mb, array_var);
1778 mono_mb_emit_ldloc (mb, index_var);
1779 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1780 mono_mb_emit_stloc (mb, 0);
1782 /* dst is already set */
1784 /* Do the conversion */
1785 emit_struct_conv (mb, eklass, FALSE);
1788 mono_mb_emit_add_to_local (mb, index_var, 1);
1790 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1792 mono_mb_patch_branch (mb, label3);
1794 /* restore the old src pointer */
1795 mono_mb_emit_ldloc (mb, src_var);
1796 mono_mb_emit_stloc (mb, 0);
1797 /* restore the old dst pointer */
1798 mono_mb_emit_ldloc (mb, dst_var);
1799 mono_mb_emit_stloc (mb, 1);
1802 mono_mb_patch_branch (mb, pos);
1805 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1806 mono_mb_emit_ldloc (mb, 0);
1807 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1808 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1810 mono_mb_emit_ldloc (mb, 1);
1811 mono_mb_emit_ldloc (mb, 0);
1812 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1813 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1814 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1815 mono_mb_patch_short_branch (mb, pos);
1818 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1819 int src_var, dst_var;
1821 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1822 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1824 mono_mb_emit_ldloc (mb, 0);
1825 mono_mb_emit_byte (mb, CEE_LDIND_I);
1826 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1828 /* save the old src pointer */
1829 mono_mb_emit_ldloc (mb, 0);
1830 mono_mb_emit_stloc (mb, src_var);
1831 /* save the old dst pointer */
1832 mono_mb_emit_ldloc (mb, 1);
1833 mono_mb_emit_stloc (mb, dst_var);
1835 /* src = pointer to object data */
1836 mono_mb_emit_ldloc (mb, 0);
1837 mono_mb_emit_byte (mb, CEE_LDIND_I);
1838 mono_mb_emit_icon (mb, sizeof (MonoObject));
1839 mono_mb_emit_byte (mb, CEE_ADD);
1840 mono_mb_emit_stloc (mb, 0);
1842 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1844 /* restore the old src pointer */
1845 mono_mb_emit_ldloc (mb, src_var);
1846 mono_mb_emit_stloc (mb, 0);
1847 /* restore the old dst pointer */
1848 mono_mb_emit_ldloc (mb, dst_var);
1849 mono_mb_emit_stloc (mb, 1);
1851 mono_mb_patch_branch (mb, pos);
1856 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1857 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1858 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1859 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1861 #endif /* DISABLE_COM */
1863 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1866 mono_mb_emit_ldloc (mb, 0);
1867 mono_mb_emit_byte (mb, CEE_LDIND_I);
1868 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1869 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1870 mono_mb_patch_branch (mb, pos);
1872 /* Pull the handle field from SafeHandle */
1873 mono_mb_emit_ldloc (mb, 1);
1874 mono_mb_emit_ldloc (mb, 0);
1875 mono_mb_emit_byte (mb, CEE_LDIND_I);
1876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1877 mono_mb_emit_byte (mb, CEE_LDIND_I);
1878 mono_mb_emit_byte (mb, CEE_STIND_I);
1882 case MONO_MARSHAL_CONV_HANDLEREF: {
1883 mono_mb_emit_ldloc (mb, 1);
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1886 mono_mb_emit_byte (mb, CEE_ADD);
1887 mono_mb_emit_byte (mb, CEE_LDIND_I);
1888 mono_mb_emit_byte (mb, CEE_STIND_I);
1893 g_error ("marshalling conversion %d not implemented", conv);
1899 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1900 MonoMarshalNative string_encoding)
1902 MonoMarshalType *info;
1906 emit_struct_conv(mb, klass->parent, to_object);
1908 info = mono_marshal_load_type_info (klass);
1910 if (info->native_size == 0)
1913 if (klass->blittable) {
1914 int msize = mono_class_value_size (klass, NULL);
1915 g_assert (msize == info->native_size);
1916 mono_mb_emit_ldloc (mb, 1);
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_icon (mb, msize);
1919 mono_mb_emit_byte (mb, CEE_PREFIX1);
1920 mono_mb_emit_byte (mb, CEE_CPBLK);
1922 mono_mb_emit_add_to_local (mb, 0, msize);
1923 mono_mb_emit_add_to_local (mb, 1, msize);
1927 if (klass != mono_class_try_get_safehandle_class ()) {
1928 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1929 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1930 mono_type_full_name (&klass->byval_arg));
1931 mono_mb_emit_exception_marshal_directive (mb, msg);
1936 for (i = 0; i < info->num_fields; i++) {
1937 MonoMarshalNative ntype;
1938 MonoMarshalConv conv;
1939 MonoType *ftype = info->fields [i].field->type;
1942 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1944 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1947 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1950 msize = klass->instance_size - info->fields [i].field->offset;
1951 usize = info->native_size - info->fields [i].offset;
1953 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1954 usize = info->fields [i + 1].offset - info->fields [i].offset;
1957 if (klass != mono_class_try_get_safehandle_class ()){
1959 * FIXME: Should really check for usize==0 and msize>0, but we apply
1960 * the layout to the managed structure as well.
1963 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1964 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1965 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1966 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1967 "reference field at the same offset as another field.",
1968 mono_type_full_name (&klass->byval_arg));
1973 case MONO_MARSHAL_CONV_NONE: {
1976 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1977 g_assert (!ftype->byref);
1978 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1979 mono_mb_emit_ldloc (mb, 1);
1980 mono_mb_emit_ldloc (mb, 0);
1981 mono_mb_emit_byte (mb, CEE_LDIND_I);
1982 mono_mb_emit_byte (mb, CEE_STIND_I);
1993 case MONO_TYPE_BOOLEAN:
1996 case MONO_TYPE_CHAR:
2002 mono_mb_emit_ldloc (mb, 1);
2003 mono_mb_emit_ldloc (mb, 0);
2004 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2006 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2007 mono_mb_emit_byte (mb, CEE_STIND_I2);
2009 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2010 mono_mb_emit_byte (mb, CEE_STIND_I1);
2013 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2014 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2017 case MONO_TYPE_VALUETYPE: {
2018 int src_var, dst_var;
2020 if (ftype->data.klass->enumtype) {
2021 ftype = mono_class_enum_basetype (ftype->data.klass);
2025 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2026 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2028 /* save the old src pointer */
2029 mono_mb_emit_ldloc (mb, 0);
2030 mono_mb_emit_stloc (mb, src_var);
2031 /* save the old dst pointer */
2032 mono_mb_emit_ldloc (mb, 1);
2033 mono_mb_emit_stloc (mb, dst_var);
2035 emit_struct_conv (mb, ftype->data.klass, to_object);
2037 /* restore the old src pointer */
2038 mono_mb_emit_ldloc (mb, src_var);
2039 mono_mb_emit_stloc (mb, 0);
2040 /* restore the old dst pointer */
2041 mono_mb_emit_ldloc (mb, dst_var);
2042 mono_mb_emit_stloc (mb, 1);
2045 case MONO_TYPE_OBJECT: {
2048 static MonoMethod *variant_clear = NULL;
2049 static MonoMethod *get_object_for_native_variant = NULL;
2052 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2053 if (!get_object_for_native_variant)
2054 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2055 mono_mb_emit_ldloc (mb, 1);
2056 mono_mb_emit_ldloc (mb, 0);
2057 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2058 mono_mb_emit_byte (mb, CEE_STIND_REF);
2060 mono_mb_emit_ldloc (mb, 0);
2061 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2064 static MonoMethod *get_native_variant_for_object = NULL;
2066 if (!get_native_variant_for_object)
2067 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2069 mono_mb_emit_ldloc (mb, 0);
2070 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2071 mono_mb_emit_ldloc (mb, 1);
2072 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2075 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2076 mono_mb_emit_exception_marshal_directive (mb, msg);
2082 g_warning ("marshaling type %02x not implemented", ftype->type);
2083 g_assert_not_reached ();
2088 int src_var, dst_var;
2090 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2091 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2093 /* save the old src pointer */
2094 mono_mb_emit_ldloc (mb, 0);
2095 mono_mb_emit_stloc (mb, src_var);
2096 /* save the old dst pointer */
2097 mono_mb_emit_ldloc (mb, 1);
2098 mono_mb_emit_stloc (mb, dst_var);
2101 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2103 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2105 /* restore the old src pointer */
2106 mono_mb_emit_ldloc (mb, src_var);
2107 mono_mb_emit_stloc (mb, 0);
2108 /* restore the old dst pointer */
2109 mono_mb_emit_ldloc (mb, dst_var);
2110 mono_mb_emit_stloc (mb, 1);
2115 mono_mb_emit_add_to_local (mb, 0, usize);
2116 mono_mb_emit_add_to_local (mb, 1, msize);
2118 mono_mb_emit_add_to_local (mb, 0, msize);
2119 mono_mb_emit_add_to_local (mb, 1, usize);
2125 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2127 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2131 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2133 /* Call DestroyStructure */
2134 /* FIXME: Only do this if needed */
2135 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2136 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2137 mono_mb_emit_ldloc (mb, struct_var);
2138 mono_mb_emit_icall (mb, mono_struct_delete_old);
2142 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2144 int pos_noabort, pos_noex;
2146 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2147 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2148 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2149 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2151 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2152 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2154 mono_mb_emit_icall (mb, checkpoint_func);
2155 /* Throw the exception returned by the checkpoint function, if any */
2156 mono_mb_emit_byte (mb, CEE_DUP);
2157 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2158 mono_mb_emit_byte (mb, CEE_THROW);
2159 mono_mb_patch_branch (mb, pos_noex);
2160 mono_mb_emit_byte (mb, CEE_POP);
2162 mono_mb_patch_branch (mb, pos_noabort);
2166 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2168 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2171 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2175 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2177 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2181 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2183 emit_thread_interrupt_checkpoint (mb);
2187 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2189 emit_thread_force_interrupt_checkpoint (mb);
2192 #endif /* DISABLE_JIT */
2194 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2195 static MonoAsyncResult *
2196 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2199 MonoMulticastDelegate *mcast_delegate;
2203 g_assert (delegate);
2204 mcast_delegate = (MonoMulticastDelegate *) delegate;
2205 if (mcast_delegate->delegates != NULL) {
2206 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2210 #ifndef DISABLE_REMOTING
2211 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2212 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2213 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2214 /* If the target is a proxy, make a direct call. Is proxy's work
2215 // to make the call asynchronous.
2217 MonoMethodMessage *msg;
2218 MonoDelegate *async_callback;
2220 MonoAsyncResult *ares;
2222 MonoArray *out_args;
2223 method = delegate->method;
2225 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2226 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2227 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2228 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2229 MONO_OBJECT_SETREF (msg, async_result, ares);
2230 msg->call_type = CallType_BeginInvoke;
2233 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2234 if (!mono_error_ok (&error)) {
2235 mono_error_set_pending_exception (&error);
2239 mono_set_pending_exception ((MonoException *) exc);
2245 klass = delegate->object.vtable->klass;
2247 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2249 method = mono_get_delegate_invoke (klass);
2252 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2253 mono_error_set_pending_exception (&error);
2260 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2262 int i, params_var, tmp_var;
2264 /* allocate local (pointer) *params[] */
2265 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2266 /* allocate local (pointer) tmp */
2267 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2269 /* alloate space on stack to store an array of pointers to the arguments */
2270 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2271 mono_mb_emit_byte (mb, CEE_PREFIX1);
2272 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2273 mono_mb_emit_stloc (mb, params_var);
2276 mono_mb_emit_ldloc (mb, params_var);
2277 mono_mb_emit_stloc (mb, tmp_var);
2279 if (save_this && sig->hasthis) {
2280 mono_mb_emit_ldloc (mb, tmp_var);
2281 mono_mb_emit_ldarg_addr (mb, 0);
2282 mono_mb_emit_byte (mb, CEE_STIND_I);
2283 /* tmp = tmp + sizeof (gpointer) */
2284 if (sig->param_count)
2285 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2289 for (i = 0; i < sig->param_count; i++) {
2290 mono_mb_emit_ldloc (mb, tmp_var);
2291 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2292 mono_mb_emit_byte (mb, CEE_STIND_I);
2293 /* tmp = tmp + sizeof (gpointer) */
2294 if (i < (sig->param_count - 1))
2295 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2301 #endif /* DISABLE_JIT */
2304 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2308 GString *res = g_string_new ("");
2311 g_string_append (res, prefix);
2312 g_string_append_c (res, '_');
2315 mono_type_get_desc (res, sig->ret, FALSE);
2318 g_string_append (res, "__this__");
2320 for (i = 0; i < sig->param_count; ++i) {
2321 g_string_append_c (res, '_');
2322 mono_type_get_desc (res, sig->params [i], FALSE);
2325 g_string_free (res, FALSE);
2330 * mono_marshal_get_string_encoding:
2332 * Return the string encoding which should be used for a given parameter.
2334 static MonoMarshalNative
2335 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2337 /* First try the parameter marshal info */
2339 if (spec->native == MONO_NATIVE_LPARRAY) {
2340 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2341 return spec->data.array_data.elem_type;
2344 return spec->native;
2348 return MONO_NATIVE_LPSTR;
2350 /* Then try the method level marshal info */
2351 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2352 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2353 return MONO_NATIVE_LPSTR;
2354 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2355 return MONO_NATIVE_LPWSTR;
2356 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2358 return MONO_NATIVE_LPWSTR;
2360 return MONO_NATIVE_LPSTR;
2363 return MONO_NATIVE_LPSTR;
2367 static MonoMarshalConv
2368 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2370 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2373 case MONO_NATIVE_LPWSTR:
2374 return MONO_MARSHAL_CONV_STR_LPWSTR;
2375 case MONO_NATIVE_LPSTR:
2376 case MONO_NATIVE_VBBYREFSTR:
2377 return MONO_MARSHAL_CONV_STR_LPSTR;
2378 case MONO_NATIVE_LPTSTR:
2379 return MONO_MARSHAL_CONV_STR_LPTSTR;
2380 case MONO_NATIVE_BSTR:
2381 return MONO_MARSHAL_CONV_STR_BSTR;
2383 return MONO_MARSHAL_CONV_INVALID;
2387 static MonoMarshalConv
2388 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2390 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2393 case MONO_NATIVE_LPWSTR:
2394 return MONO_MARSHAL_CONV_SB_LPWSTR;
2396 case MONO_NATIVE_LPSTR:
2397 return MONO_MARSHAL_CONV_SB_LPSTR;
2399 case MONO_NATIVE_LPTSTR:
2400 return MONO_MARSHAL_CONV_SB_LPTSTR;
2403 return MONO_MARSHAL_CONV_INVALID;
2407 static MonoMarshalConv
2408 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2410 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2415 case MONO_NATIVE_LPWSTR:
2417 return MONO_MARSHAL_CONV_LPWSTR_STR;
2418 case MONO_NATIVE_LPSTR:
2419 case MONO_NATIVE_VBBYREFSTR:
2420 return MONO_MARSHAL_CONV_LPSTR_STR;
2421 case MONO_NATIVE_LPTSTR:
2422 return MONO_MARSHAL_CONV_LPTSTR_STR;
2423 case MONO_NATIVE_BSTR:
2424 return MONO_MARSHAL_CONV_BSTR_STR;
2426 return MONO_MARSHAL_CONV_INVALID;
2430 static MonoMarshalConv
2431 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2433 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2438 case MONO_NATIVE_LPWSTR:
2440 * mono_string_builder_to_utf16 does not allocate a
2441 * new buffer, so no need to free it.
2444 return MONO_MARSHAL_CONV_LPWSTR_SB;
2445 case MONO_NATIVE_LPSTR:
2446 return MONO_MARSHAL_CONV_LPSTR_SB;
2448 case MONO_NATIVE_LPTSTR:
2449 return MONO_MARSHAL_CONV_LPTSTR_SB;
2452 return MONO_MARSHAL_CONV_INVALID;
2457 * Return whenever a field of a native structure or an array member needs to
2461 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2463 MonoMarshalNative encoding;
2466 case MONO_TYPE_VALUETYPE:
2467 /* FIXME: Optimize this */
2469 case MONO_TYPE_OBJECT:
2470 case MONO_TYPE_CLASS:
2471 if (t->data.klass == mono_defaults.stringbuilder_class) {
2473 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2477 case MONO_TYPE_STRING:
2478 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2479 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2486 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2489 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2492 mono_marshal_lock ();
2495 g_hash_table_new (hash_func, equal_func);
2496 mono_memory_barrier ();
2499 mono_marshal_unlock ();
2505 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2507 return get_cache (var, hash_func, equal_func);
2511 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2515 mono_marshal_lock ();
2516 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2517 mono_marshal_unlock ();
2524 * Create a MonoMethod from MB, set INFO as wrapper info.
2527 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2528 int max_stack, WrapperInfo *info)
2532 res = mono_mb_create_method (mb, sig, max_stack);
2534 mono_marshal_set_wrapper_info (res, info);
2538 /* Create the method from the builder and place it in the cache */
2540 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2541 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2542 int max_stack, WrapperInfo *info, gboolean *out_found)
2549 mono_marshal_lock ();
2550 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2551 mono_marshal_unlock ();
2554 newm = mono_mb_create_method (mb, sig, max_stack);
2555 mono_marshal_lock ();
2556 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2559 g_hash_table_insert (cache, key, res);
2560 mono_marshal_set_wrapper_info (res, info);
2561 mono_marshal_unlock ();
2565 mono_marshal_unlock ();
2566 mono_free_method (newm);
2574 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2575 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2578 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2582 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2585 int wrapper_type = wrapper->wrapper_type;
2588 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2591 info = mono_marshal_get_wrapper_info (wrapper);
2593 switch (wrapper_type) {
2594 case MONO_WRAPPER_REMOTING_INVOKE:
2595 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2596 case MONO_WRAPPER_XDOMAIN_INVOKE:
2597 m = info->d.remoting.method;
2598 if (wrapper->is_inflated) {
2602 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2603 * contains an uninflated method.
2605 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2606 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2610 case MONO_WRAPPER_SYNCHRONIZED:
2611 m = info->d.synchronized.method;
2612 if (wrapper->is_inflated) {
2615 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2616 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2620 case MONO_WRAPPER_UNBOX:
2621 return info->d.unbox.method;
2622 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2623 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2624 return info->d.managed_to_native.method;
2627 case MONO_WRAPPER_RUNTIME_INVOKE:
2628 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2629 return info->d.runtime_invoke.method;
2638 * mono_marshal_get_wrapper_info:
2640 * Retrieve the WrapperInfo structure associated with WRAPPER.
2643 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2645 g_assert (wrapper->wrapper_type);
2647 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2651 * mono_marshal_set_wrapper_info:
2653 * Set the WrapperInfo structure associated with the wrapper
2654 * method METHOD to INFO.
2657 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2661 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2664 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2669 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2673 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2674 info->subtype = subtype;
2679 * get_wrapper_target_class:
2681 * Return the class where a wrapper method should be placed.
2684 get_wrapper_target_class (MonoImage *image)
2691 * - can't put all wrappers into an mscorlib class, because they reference
2692 * metadata (signature) so they should be put into the same image as the
2693 * method they wrap, so they are unloaded together.
2694 * - putting them into a class with a type initalizer could cause the
2695 * initializer to be executed which can be a problem if the wrappers are
2697 * - putting them into an inflated class can cause problems if the the
2698 * class is deleted because it references an image which is unloaded.
2699 * To avoid these problems, we put the wrappers into the <Module> class of
2702 if (image_is_dynamic (image)) {
2703 klass = ((MonoDynamicImage*)image)->wrappers_type;
2705 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2706 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2714 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2715 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2719 * check_generic_wrapper_cache:
2721 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2722 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2723 * generic method definition.
2726 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2729 MonoMethod *inst, *def;
2730 MonoGenericContext *ctx;
2732 g_assert (orig_method->is_inflated);
2733 ctx = mono_method_get_context (orig_method);
2736 * Look for the instance
2738 res = mono_marshal_find_in_cache (cache, key);
2743 * Look for the definition
2745 def = mono_marshal_find_in_cache (cache, def_key);
2748 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2749 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2751 mono_memory_barrier ();
2752 mono_marshal_lock ();
2753 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2755 g_hash_table_insert (cache, key, inst);
2758 mono_marshal_unlock ();
2765 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2768 MonoMethod *inst, *res;
2771 * We use the same cache for the generic definition and the instances.
2773 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2774 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2775 mono_memory_barrier ();
2776 mono_marshal_lock ();
2777 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2779 g_hash_table_insert (cache, key, inst);
2782 mono_marshal_unlock ();
2787 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2791 MonoMethod *inst, *def;
2794 * Look for the instance
2796 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2801 * Look for the definition
2803 def = mono_marshal_find_in_cache (cache, def_method->klass);
2805 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2806 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2809 mono_memory_barrier ();
2810 mono_marshal_lock ();
2811 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2813 g_hash_table_insert (cache, orig_method->klass, inst);
2816 mono_marshal_unlock ();
2823 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2826 MonoMethod *inst, *res;
2829 * We use the same cache for the generic definition and the instances.
2831 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2832 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2834 mono_memory_barrier ();
2835 mono_marshal_lock ();
2836 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2838 g_hash_table_insert (cache, orig_method->klass, inst);
2841 mono_marshal_unlock ();
2846 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2848 MonoMethodSignature *sig;
2849 MonoMethodBuilder *mb;
2854 MonoGenericContext *ctx = NULL;
2855 MonoMethod *orig_method = NULL;
2857 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2858 !strcmp (method->name, "BeginInvoke"));
2861 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2863 if (method->is_inflated) {
2864 orig_method = method;
2865 ctx = &((MonoMethodInflated*)method)->context;
2866 method = ((MonoMethodInflated*)method)->declaring;
2869 sig = mono_signature_no_pinvoke (method);
2875 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2876 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2880 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2881 (GHashFunc)mono_signature_hash,
2882 (GCompareFunc)mono_metadata_signature_equal);
2883 if ((res = mono_marshal_find_in_cache (cache, sig)))
2887 g_assert (sig->hasthis);
2889 name = mono_signature_to_name (sig, "begin_invoke");
2891 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2893 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2897 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2899 mono_mb_emit_ldarg (mb, 0);
2900 mono_mb_emit_ldloc (mb, params_var);
2901 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2902 mono_mb_emit_byte (mb, CEE_RET);
2907 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2908 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2910 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2917 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2919 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2922 MonoDomain *domain = mono_domain_get ();
2923 MonoAsyncResult *ares;
2924 MonoMethod *method = NULL;
2925 MonoMethodSignature *sig;
2926 MonoMethodMessage *msg;
2927 MonoObject *res, *exc;
2928 MonoArray *out_args;
2931 g_assert (delegate);
2933 if (!delegate->method_info) {
2934 g_assert (delegate->method);
2935 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2936 if (!mono_error_ok (&error)) {
2937 mono_error_set_pending_exception (&error);
2940 MONO_OBJECT_SETREF (delegate, method_info, rm);
2943 if (!delegate->method_info || !delegate->method_info->method)
2944 g_assert_not_reached ();
2946 klass = delegate->object.vtable->klass;
2948 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2949 g_assert (method != NULL);
2951 sig = mono_signature_no_pinvoke (method);
2953 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2955 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2957 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."));
2961 if (ares->async_delegate != (MonoObject*)delegate) {
2962 mono_set_pending_exception (mono_get_exception_invalid_operation (
2963 "The IAsyncResult object provided does not match this delegate."));
2967 #ifndef DISABLE_REMOTING
2968 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2969 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2970 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2971 if (!mono_error_ok (&error)) {
2972 mono_error_set_pending_exception (&error);
2975 mono_message_init (domain, msg, delegate->method_info, NULL);
2976 msg->call_type = CallType_EndInvoke;
2977 MONO_OBJECT_SETREF (msg, async_result, ares);
2978 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2979 if (!mono_error_ok (&error)) {
2980 mono_error_set_pending_exception (&error);
2986 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2990 if (((MonoException*)exc)->stack_trace) {
2991 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2993 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2995 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2998 mono_set_pending_exception ((MonoException*)exc);
3001 mono_method_return_message_restore (method, params, out_args, &error);
3002 mono_error_set_pending_exception (&error);
3009 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3011 MonoType *t = mono_type_get_underlying_type (return_type);
3013 if (return_type->byref)
3014 return_type = &mono_defaults.int_class->byval_arg;
3017 case MONO_TYPE_VOID:
3018 g_assert_not_reached ();
3021 case MONO_TYPE_STRING:
3022 case MONO_TYPE_CLASS:
3023 case MONO_TYPE_OBJECT:
3024 case MONO_TYPE_ARRAY:
3025 case MONO_TYPE_SZARRAY:
3029 case MONO_TYPE_BOOLEAN:
3032 case MONO_TYPE_CHAR:
3042 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3043 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3045 case MONO_TYPE_GENERICINST:
3046 if (!mono_type_generic_inst_is_valuetype (t))
3049 case MONO_TYPE_VALUETYPE: {
3050 MonoClass *klass = mono_class_from_mono_type (return_type);
3051 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3052 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3056 case MONO_TYPE_MVAR: {
3057 MonoClass *klass = mono_class_from_mono_type (return_type);
3058 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3062 g_warning ("type 0x%x not handled", return_type->type);
3063 g_assert_not_reached ();
3066 mono_mb_emit_byte (mb, CEE_RET);
3069 #endif /* DISABLE_JIT */
3072 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3074 MonoMethodSignature *sig;
3075 MonoMethodBuilder *mb;
3080 MonoGenericContext *ctx = NULL;
3081 MonoMethod *orig_method = NULL;
3083 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3084 !strcmp (method->name, "EndInvoke"));
3087 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3089 if (method->is_inflated) {
3090 orig_method = method;
3091 ctx = &((MonoMethodInflated*)method)->context;
3092 method = ((MonoMethodInflated*)method)->declaring;
3095 sig = mono_signature_no_pinvoke (method);
3101 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3102 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3106 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3107 (GHashFunc)mono_signature_hash,
3108 (GCompareFunc)mono_metadata_signature_equal);
3109 if ((res = mono_marshal_find_in_cache (cache, sig)))
3113 g_assert (sig->hasthis);
3115 name = mono_signature_to_name (sig, "end_invoke");
3117 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3119 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3123 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3125 mono_mb_emit_ldarg (mb, 0);
3126 mono_mb_emit_ldloc (mb, params_var);
3127 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3129 if (sig->ret->type == MONO_TYPE_VOID) {
3130 mono_mb_emit_byte (mb, CEE_POP);
3131 mono_mb_emit_byte (mb, CEE_RET);
3133 mono_mb_emit_restore_result (mb, sig->ret);
3138 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3139 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3141 res = mono_mb_create_and_cache (cache, sig,
3142 mb, sig, sig->param_count + 16);
3151 MonoMethodSignature *sig;
3153 } SignaturePointerPair;
3156 signature_pointer_pair_hash (gconstpointer data)
3158 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3160 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3164 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3166 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3167 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3171 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3173 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3175 return pair->pointer == user_data;
3179 free_signature_pointer_pair (SignaturePointerPair *pair)
3185 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3187 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3189 MonoMethodBuilder *mb;
3192 gpointer cache_key = NULL;
3193 SignaturePointerPair key;
3194 SignaturePointerPair *new_key;
3195 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3196 int pos0, pos1, pos2;
3198 MonoClass *target_class = NULL;
3199 gboolean closed_over_null = FALSE;
3200 MonoGenericContext *ctx = NULL;
3201 MonoGenericContainer *container = NULL;
3202 MonoMethod *orig_method = NULL;
3204 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3208 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3209 !strcmp (method->name, "Invoke"));
3211 invoke_sig = sig = mono_signature_no_pinvoke (method);
3214 * If the delegate target is null, and the target method is not static, a virtual
3215 * call is made to that method with the first delegate argument as this. This is
3216 * a non-documented .NET feature.
3219 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3220 if (target_method->is_inflated) {
3222 MonoType *target_type;
3224 g_assert (method->signature->hasthis);
3225 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3226 mono_method_get_context (method), &error);
3227 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3228 target_class = mono_class_from_mono_type (target_type);
3230 target_class = target_method->klass;
3233 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3236 if (static_method_with_first_arg_bound) {
3237 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3238 g_assert (!callvirt);
3239 invoke_sig = mono_method_signature (target_method);
3243 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3245 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3246 orig_method = method;
3247 ctx = &((MonoMethodInflated*)method)->context;
3248 method = ((MonoMethodInflated*)method)->declaring;
3250 container = mono_method_get_generic_container (method);
3252 container = method->klass->generic_container;
3253 g_assert (container);
3255 invoke_sig = sig = mono_signature_no_pinvoke (method);
3262 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3263 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3266 cache_key = method->klass;
3267 } else if (static_method_with_first_arg_bound) {
3268 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3269 (GHashFunc)mono_signature_hash,
3270 (GCompareFunc)mono_metadata_signature_equal);
3272 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3274 res = mono_marshal_find_in_cache (cache, invoke_sig);
3277 cache_key = invoke_sig;
3278 } else if (callvirt) {
3279 GHashTable **cache_ptr;
3281 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3283 /* We need to cache the signature+method pair */
3284 mono_marshal_lock ();
3286 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3288 key.sig = invoke_sig;
3289 key.pointer = target_method;
3290 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3291 mono_marshal_unlock ();
3295 // Inflated methods should not be in this cache because it's not stored on the imageset.
3296 g_assert (!method->is_inflated);
3297 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3298 (GHashFunc)mono_signature_hash,
3299 (GCompareFunc)mono_metadata_signature_equal);
3300 res = mono_marshal_find_in_cache (cache, sig);
3306 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3307 static_sig->hasthis = 0;
3308 if (!static_method_with_first_arg_bound)
3309 invoke_sig = static_sig;
3311 if (static_method_with_first_arg_bound)
3312 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3313 else if (closed_over_null)
3314 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3316 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3318 name = mono_signature_to_name (invoke_sig, "invoke");
3320 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3322 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3326 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3328 /* allocate local 0 (object) */
3329 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3330 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3331 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3332 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3333 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3336 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3338 g_assert (sig->hasthis);
3341 * {type: sig->ret} res;
3342 * if (delegates == null) {
3343 * return this.<target> ( args .. );
3345 * int i = 0, len = this.delegates.Length;
3347 * res = this.delegates [i].Invoke ( args .. );
3348 * } while (++i < len);
3353 /* this wrapper can be used in unmanaged-managed transitions */
3354 emit_thread_interrupt_checkpoint (mb);
3356 /* delegates = this.delegates */
3357 mono_mb_emit_ldarg (mb, 0);
3358 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3359 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3360 mono_mb_emit_stloc (mb, local_delegates);
3363 /* if (delegates == null) */
3364 mono_mb_emit_ldloc (mb, local_delegates);
3365 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3367 /* return target.<target_method|method_ptr> ( args .. ); */
3369 /* target = d.target; */
3370 mono_mb_emit_ldarg (mb, 0);
3371 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3373 mono_mb_emit_stloc (mb, local_target);
3375 /*static methods with bound first arg can have null target and still be bound*/
3376 if (!static_method_with_first_arg_bound) {
3377 /* if target != null */
3378 mono_mb_emit_ldloc (mb, local_target);
3379 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3381 /* then call this->method_ptr nonstatic */
3384 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3386 mono_mb_emit_ldloc (mb, local_target);
3387 for (i = 0; i < sig->param_count; ++i)
3388 mono_mb_emit_ldarg (mb, i + 1);
3389 mono_mb_emit_ldarg (mb, 0);
3390 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3391 mono_mb_emit_byte (mb, CEE_LDIND_I);
3392 mono_mb_emit_ldarg (mb, 0);
3393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3394 mono_mb_emit_byte (mb, CEE_LDIND_I);
3395 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3396 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3397 mono_mb_emit_byte (mb, CEE_RET);
3400 /* else [target == null] call this->method_ptr static */
3401 mono_mb_patch_branch (mb, pos0);
3405 if (!closed_over_null) {
3406 if (target_class->valuetype) {
3407 mono_mb_emit_ldarg (mb, 1);
3408 for (i = 1; i < sig->param_count; ++i)
3409 mono_mb_emit_ldarg (mb, i + 1);
3410 mono_mb_emit_op (mb, CEE_CALL, target_method);
3412 mono_mb_emit_ldarg (mb, 1);
3413 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3414 for (i = 1; i < sig->param_count; ++i)
3415 mono_mb_emit_ldarg (mb, i + 1);
3416 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3419 mono_mb_emit_byte (mb, CEE_LDNULL);
3420 for (i = 0; i < sig->param_count; ++i)
3421 mono_mb_emit_ldarg (mb, i + 1);
3422 mono_mb_emit_op (mb, CEE_CALL, target_method);
3425 if (static_method_with_first_arg_bound) {
3426 mono_mb_emit_ldloc (mb, local_target);
3427 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3428 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3430 for (i = 0; i < sig->param_count; ++i)
3431 mono_mb_emit_ldarg (mb, i + 1);
3432 mono_mb_emit_ldarg (mb, 0);
3433 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3434 mono_mb_emit_byte (mb, CEE_LDIND_I);
3435 mono_mb_emit_ldarg (mb, 0);
3436 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3437 mono_mb_emit_byte (mb, CEE_LDIND_I);
3438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3439 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3442 mono_mb_emit_byte (mb, CEE_RET);
3444 /* else [delegates != null] */
3445 mono_mb_patch_branch (mb, pos2);
3447 /* len = delegates.Length; */
3448 mono_mb_emit_ldloc (mb, local_delegates);
3449 mono_mb_emit_byte (mb, CEE_LDLEN);
3450 mono_mb_emit_byte (mb, CEE_CONV_I4);
3451 mono_mb_emit_stloc (mb, local_len);
3454 mono_mb_emit_icon (mb, 0);
3455 mono_mb_emit_stloc (mb, local_i);
3457 pos1 = mono_mb_get_label (mb);
3459 /* d = delegates [i]; */
3460 mono_mb_emit_ldloc (mb, local_delegates);
3461 mono_mb_emit_ldloc (mb, local_i);
3462 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3463 mono_mb_emit_stloc (mb, local_d);
3465 /* res = d.Invoke ( args .. ); */
3466 mono_mb_emit_ldloc (mb, local_d);
3467 for (i = 0; i < sig->param_count; i++)
3468 mono_mb_emit_ldarg (mb, i + 1);
3470 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3473 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3474 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3477 mono_mb_emit_stloc (mb, local_res);
3480 mono_mb_emit_add_to_local (mb, local_i, 1);
3483 mono_mb_emit_ldloc (mb, local_i);
3484 mono_mb_emit_ldloc (mb, local_len);
3485 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3489 mono_mb_emit_ldloc (mb, local_res);
3490 mono_mb_emit_byte (mb, CEE_RET);
3492 mb->skip_visibility = 1;
3493 #endif /* DISABLE_JIT */
3495 info = mono_wrapper_info_create (mb, subtype);
3500 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3501 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3502 } else if (callvirt) {
3503 new_key = g_new0 (SignaturePointerPair, 1);
3506 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3510 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3514 /* mono_method_print_code (res); */
3520 * the returned method invokes all methods in a multicast delegate.
3523 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3525 gboolean callvirt = FALSE;
3526 gboolean static_method_with_first_arg_bound = FALSE;
3527 MonoMethod *target_method = NULL;
3528 MonoMethodSignature *sig;
3530 sig = mono_signature_no_pinvoke (method);
3532 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3534 target_method = del->method;
3537 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3538 static_method_with_first_arg_bound = TRUE;
3539 target_method = del->method;
3542 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3546 MonoMethodSignature *ctor_sig;
3547 MonoMethodSignature *sig;
3550 /* protected by the marshal lock, contains CtorSigPair pointers */
3551 static GSList *strsig_list = NULL;
3553 static MonoMethodSignature *
3554 lookup_string_ctor_signature (MonoMethodSignature *sig)
3556 MonoMethodSignature *callsig;
3560 mono_marshal_lock ();
3562 for (item = strsig_list; item; item = item->next) {
3563 cs = (CtorSigPair *)item->data;
3564 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3565 * because it is lock-free.
3567 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3572 mono_marshal_unlock ();
3576 static MonoMethodSignature *
3577 add_string_ctor_signature (MonoMethod *method)
3579 MonoMethodSignature *callsig;
3582 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3583 callsig->ret = &mono_defaults.string_class->byval_arg;
3584 cs = g_new (CtorSigPair, 1);
3586 cs->ctor_sig = mono_method_signature (method);
3588 mono_marshal_lock ();
3589 strsig_list = g_slist_prepend (strsig_list, cs);
3590 mono_marshal_unlock ();
3595 * mono_marshal_get_string_ctor_signature:
3597 * Return the modified signature used by string ctors (they return the newly created
3600 MonoMethodSignature*
3601 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3603 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3605 sig = add_string_ctor_signature (method);
3611 get_runtime_invoke_type (MonoType *t, gboolean ret)
3614 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3616 /* Can't share this with 'I' as that needs another indirection */
3617 return &mono_defaults.int_class->this_arg;
3620 if (MONO_TYPE_IS_REFERENCE (t))
3621 return &mono_defaults.object_class->byval_arg;
3624 /* The result needs to be boxed */
3629 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3632 return &mono_defaults.sbyte_class->byval_arg;
3634 return &mono_defaults.int16_class->byval_arg;
3636 return &mono_defaults.int32_class->byval_arg;
3639 return &mono_defaults.int64_class->byval_arg;
3640 case MONO_TYPE_BOOLEAN:
3641 return &mono_defaults.byte_class->byval_arg;
3642 case MONO_TYPE_CHAR:
3643 return &mono_defaults.uint16_class->byval_arg;
3645 return &mono_defaults.int_class->byval_arg;
3646 case MONO_TYPE_VALUETYPE:
3647 if (t->data.klass->enumtype) {
3648 t = mono_class_enum_basetype (t->data.klass);
3658 * mono_marshal_get_runtime_invoke_sig:
3660 * Return a common signature used for sharing runtime invoke wrappers.
3662 static MonoMethodSignature*
3663 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3665 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3668 res->generic_param_count = 0;
3669 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3670 for (i = 0; i < res->param_count; ++i)
3671 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3677 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3679 /* Can't share wrappers which return a vtype since it needs to be boxed */
3680 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))
3683 return mono_metadata_signature_equal (sig1, sig2);
3691 * Emit the call to the wrapper method from a runtime invoke wrapper.
3694 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3695 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3697 gboolean virtual_, gboolean need_direct_wrapper)
3699 static MonoString *string_dummy = NULL;
3701 int *tmp_nullable_locals;
3702 gboolean void_ret = FALSE;
3703 gboolean string_ctor = method && method->string_ctor;
3705 /* to make it work with our special string constructors */
3706 if (!string_dummy) {
3707 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3708 string_dummy = mono_string_new_wrapper ("dummy");
3712 g_assert (sig->hasthis);
3713 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3718 if (mono_gc_is_moving ()) {
3719 mono_mb_emit_ptr (mb, &string_dummy);
3720 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3722 mono_mb_emit_ptr (mb, string_dummy);
3725 mono_mb_emit_ldarg (mb, 0);
3729 tmp_nullable_locals = g_new0 (int, sig->param_count);
3731 for (i = 0; i < sig->param_count; i++) {
3732 MonoType *t = sig->params [i];
3735 mono_mb_emit_ldarg (mb, 1);
3737 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3738 mono_mb_emit_byte (mb, CEE_ADD);
3742 mono_mb_emit_byte (mb, CEE_LDIND_I);
3743 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3744 * So to make this work we unbox it to a local variablee and push a reference to that.
3746 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3747 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3749 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3750 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3751 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3756 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3757 type = sig->params [i]->type;
3761 case MONO_TYPE_BOOLEAN:
3765 case MONO_TYPE_CHAR:
3774 mono_mb_emit_byte (mb, CEE_LDIND_I);
3775 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3777 case MONO_TYPE_STRING:
3778 case MONO_TYPE_CLASS:
3779 case MONO_TYPE_ARRAY:
3781 case MONO_TYPE_SZARRAY:
3782 case MONO_TYPE_OBJECT:
3783 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3785 case MONO_TYPE_GENERICINST:
3786 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3787 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3792 case MONO_TYPE_VALUETYPE:
3793 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3794 type = mono_class_enum_basetype (t->data.klass)->type;
3797 mono_mb_emit_byte (mb, CEE_LDIND_I);
3798 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3799 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3800 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3801 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3803 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3807 g_assert_not_reached ();
3812 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3813 } else if (need_direct_wrapper) {
3814 mono_mb_emit_op (mb, CEE_CALL, method);
3816 mono_mb_emit_ldarg (mb, 3);
3817 mono_mb_emit_calli (mb, callsig);
3820 if (sig->ret->byref) {
3822 g_assert_not_reached ();
3825 switch (sig->ret->type) {
3826 case MONO_TYPE_VOID:
3830 case MONO_TYPE_BOOLEAN:
3831 case MONO_TYPE_CHAR:
3844 case MONO_TYPE_VALUETYPE:
3845 case MONO_TYPE_TYPEDBYREF:
3846 case MONO_TYPE_GENERICINST:
3847 /* box value types */
3848 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3850 case MONO_TYPE_STRING:
3851 case MONO_TYPE_CLASS:
3852 case MONO_TYPE_ARRAY:
3853 case MONO_TYPE_SZARRAY:
3854 case MONO_TYPE_OBJECT:
3858 /* The result is an IntPtr */
3859 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3862 g_assert_not_reached ();
3866 mono_mb_emit_stloc (mb, loc_res);
3868 /* Convert back nullable-byref arguments */
3869 for (i = 0; i < sig->param_count; i++) {
3870 MonoType *t = sig->params [i];
3873 * Box the result and put it back into the array, the caller will have
3874 * to obtain it from there.
3876 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3877 mono_mb_emit_ldarg (mb, 1);
3878 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3879 mono_mb_emit_byte (mb, CEE_ADD);
3881 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3882 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3884 mono_mb_emit_byte (mb, CEE_STIND_REF);
3888 g_free (tmp_nullable_locals);
3892 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3893 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3894 gboolean virtual_, gboolean need_direct_wrapper)
3897 MonoExceptionClause *clause;
3898 int loc_res, loc_exc;
3900 /* The wrapper looks like this:
3906 * } catch (Exception e) {
3914 /* allocate local 0 (object) tmp */
3915 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3916 /* allocate local 1 (object) exc */
3917 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3919 /* *exc is assumed to be initialized to NULL by the caller */
3921 mono_mb_emit_byte (mb, CEE_LDARG_2);
3922 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3927 labels [1] = mono_mb_get_label (mb);
3928 emit_thread_force_interrupt_checkpoint (mb);
3929 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3931 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3933 /* Add a try clause around the call */
3934 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3935 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3936 clause->data.catch_class = mono_defaults.exception_class;
3937 clause->try_offset = labels [1];
3938 clause->try_len = mono_mb_get_label (mb) - labels [1];
3940 clause->handler_offset = mono_mb_get_label (mb);
3943 mono_mb_emit_stloc (mb, loc_exc);
3944 mono_mb_emit_byte (mb, CEE_LDARG_2);
3945 mono_mb_emit_ldloc (mb, loc_exc);
3946 mono_mb_emit_byte (mb, CEE_STIND_REF);
3948 mono_mb_emit_branch (mb, CEE_LEAVE);
3950 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3952 mono_mb_set_clauses (mb, 1, clause);
3954 mono_mb_patch_branch (mb, labels [2]);
3955 mono_mb_emit_ldloc (mb, loc_res);
3956 mono_mb_emit_byte (mb, CEE_RET);
3961 mono_mb_patch_branch (mb, labels [0]);
3962 emit_thread_force_interrupt_checkpoint (mb);
3963 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3965 mono_mb_emit_ldloc (mb, 0);
3966 mono_mb_emit_byte (mb, CEE_RET);
3971 * generates IL code for the runtime invoke function
3972 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3974 * we also catch exceptions if exc != null
3975 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3976 * it means that the compiled code for METHOD does not have to be looked up
3977 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3978 * its METHOD argument.
3981 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3983 MonoMethodSignature *sig, *csig, *callsig;
3984 MonoMethodBuilder *mb;
3985 GHashTable *cache = NULL;
3986 MonoClass *target_klass;
3987 MonoMethod *res = NULL;
3988 static MonoMethodSignature *cctor_signature = NULL;
3989 static MonoMethodSignature *finalize_signature = NULL;
3991 const char *param_names [16];
3992 gboolean need_direct_wrapper = FALSE;
3997 if (!cctor_signature) {
3998 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3999 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4001 if (!finalize_signature) {
4002 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4003 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4004 finalize_signature->hasthis = 1;
4008 need_direct_wrapper = TRUE;
4011 * Use a separate cache indexed by methods to speed things up and to avoid the
4012 * boundless mempool growth caused by the signature_dup stuff below.
4015 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4017 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4019 res = mono_marshal_find_in_cache (cache, method);
4023 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4024 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4026 * Array Get/Set/Address methods. The JIT implements them using inline code
4027 * so we need to create an invoke wrapper which calls the method directly.
4029 need_direct_wrapper = TRUE;
4032 if (method->string_ctor) {
4033 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4035 callsig = add_string_ctor_signature (method);
4036 /* Can't share this as we push a string as this */
4037 need_direct_wrapper = TRUE;
4039 if (method_is_dynamic (method))
4040 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4042 callsig = mono_method_signature (method);
4045 sig = mono_method_signature (method);
4047 target_klass = get_wrapper_target_class (method->klass->image);
4049 /* Try to share wrappers for non-corlib methods with simple signatures */
4050 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4051 callsig = cctor_signature;
4052 target_klass = mono_defaults.object_class;
4053 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4054 callsig = finalize_signature;
4055 target_klass = mono_defaults.object_class;
4058 if (need_direct_wrapper) {
4059 /* Already searched at the start */
4061 MonoMethodSignature *tmp_sig;
4063 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4064 GHashTable **cache_table = NULL;
4066 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4067 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4069 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4071 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4072 (GCompareFunc)runtime_invoke_signature_equal);
4074 /* from mono_marshal_find_in_cache */
4075 mono_marshal_lock ();
4076 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4077 mono_marshal_unlock ();
4084 /* Make a copy of the signature from the image mempool */
4086 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4090 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4092 csig->ret = &mono_defaults.object_class->byval_arg;
4093 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4094 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4096 csig->params [0] = &mono_defaults.object_class->byval_arg;
4097 csig->params [1] = &mono_defaults.int_class->byval_arg;
4098 csig->params [2] = &mono_defaults.int_class->byval_arg;
4099 csig->params [3] = &mono_defaults.int_class->byval_arg;
4102 /* This is called from runtime code so it has to be cdecl */
4103 csig->call_convention = MONO_CALL_C;
4106 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4107 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4111 param_names [0] = "this";
4112 param_names [1] = "params";
4113 param_names [2] = "exc";
4114 param_names [3] = "method";
4115 mono_mb_set_param_names (mb, param_names);
4117 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4120 if (need_direct_wrapper) {
4122 mb->skip_visibility = 1;
4124 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4125 info->d.runtime_invoke.method = method;
4126 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4128 /* taken from mono_mb_create_and_cache */
4129 mono_marshal_lock ();
4130 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4131 mono_marshal_unlock ();
4133 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4134 info->d.runtime_invoke.sig = callsig;
4136 /* Somebody may have created it before us */
4139 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4141 mono_marshal_lock ();
4142 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4144 GHashTable *direct_cache;
4146 g_hash_table_insert (cache, callsig, res);
4147 /* Can't insert it into wrapper_hash since the key is a signature */
4148 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4150 g_hash_table_insert (direct_cache, method, res);
4152 mono_free_method (newm);
4154 mono_marshal_unlock ();
4157 /* end mono_mb_create_and_cache */
4166 * mono_marshal_get_runtime_invoke_dynamic:
4168 * Return a method which can be used to invoke managed methods from native code
4170 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4171 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4172 * ARGS should point to an architecture specific structure containing
4173 * the arguments and space for the return value.
4174 * The other arguments are the same as for runtime_invoke (), except that
4175 * ARGS should contain the this argument too.
4176 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4177 * is only one copy of it, which is useful in full-aot.
4178 * The wrapper info for the wrapper is a WrapperInfo structure.
4181 mono_marshal_get_runtime_invoke_dynamic (void)
4183 static MonoMethod *method;
4184 MonoMethodSignature *csig;
4185 MonoExceptionClause *clause;
4186 MonoMethodBuilder *mb;
4194 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4196 csig->ret = &mono_defaults.void_class->byval_arg;
4197 csig->params [0] = &mono_defaults.int_class->byval_arg;
4198 csig->params [1] = &mono_defaults.int_class->byval_arg;
4199 csig->params [2] = &mono_defaults.int_class->byval_arg;
4200 csig->params [3] = &mono_defaults.int_class->byval_arg;
4202 name = g_strdup ("runtime_invoke_dynamic");
4203 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4207 /* allocate local 0 (object) tmp */
4208 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4209 /* allocate local 1 (object) exc */
4210 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4212 /* cond set *exc to null */
4213 mono_mb_emit_byte (mb, CEE_LDARG_1);
4214 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4215 mono_mb_emit_byte (mb, 3);
4216 mono_mb_emit_byte (mb, CEE_LDARG_1);
4217 mono_mb_emit_byte (mb, CEE_LDNULL);
4218 mono_mb_emit_byte (mb, CEE_STIND_REF);
4220 emit_thread_force_interrupt_checkpoint (mb);
4222 mono_mb_emit_byte (mb, CEE_LDARG_0);
4223 mono_mb_emit_byte (mb, CEE_LDARG_2);
4224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4225 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4227 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4229 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4230 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4231 clause->try_len = mono_mb_get_label (mb);
4234 clause->data.filter_offset = mono_mb_get_label (mb);
4236 mono_mb_emit_byte (mb, CEE_POP);
4237 mono_mb_emit_byte (mb, CEE_LDARG_1);
4238 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4239 mono_mb_emit_byte (mb, CEE_PREFIX1);
4240 mono_mb_emit_byte (mb, CEE_CGT_UN);
4241 mono_mb_emit_byte (mb, CEE_PREFIX1);
4242 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4244 clause->handler_offset = mono_mb_get_label (mb);
4247 /* store exception */
4248 mono_mb_emit_stloc (mb, 1);
4250 mono_mb_emit_byte (mb, CEE_LDARG_1);
4251 mono_mb_emit_ldloc (mb, 1);
4252 mono_mb_emit_byte (mb, CEE_STIND_REF);
4254 mono_mb_emit_byte (mb, CEE_LDNULL);
4255 mono_mb_emit_stloc (mb, 0);
4257 /* Check for the abort exception */
4258 mono_mb_emit_ldloc (mb, 1);
4259 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4260 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4262 /* Delay the abort exception */
4263 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4265 mono_mb_patch_short_branch (mb, posna);
4266 mono_mb_emit_branch (mb, CEE_LEAVE);
4268 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4270 mono_mb_set_clauses (mb, 1, clause);
4273 mono_mb_patch_branch (mb, pos);
4274 //mono_mb_emit_ldloc (mb, 0);
4275 mono_mb_emit_byte (mb, CEE_RET);
4276 #endif /* DISABLE_JIT */
4278 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4280 mono_marshal_lock ();
4281 /* double-checked locking */
4283 method = mono_mb_create (mb, csig, 16, info);
4285 mono_marshal_unlock ();
4293 * mono_marshal_get_runtime_invoke_for_sig:
4295 * Return a runtime invoke wrapper for a given signature.
4298 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4300 MonoMethodSignature *csig, *callsig;
4301 MonoMethodBuilder *mb;
4303 GHashTable *cache = NULL;
4304 GHashTable **cache_table = NULL;
4305 MonoMethod *res = NULL;
4307 const char *param_names [16];
4310 /* A simplified version of mono_marshal_get_runtime_invoke */
4312 image = mono_defaults.corlib;
4314 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4316 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4318 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4319 (GCompareFunc)runtime_invoke_signature_equal);
4321 /* from mono_marshal_find_in_cache */
4322 mono_marshal_lock ();
4323 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4324 mono_marshal_unlock ();
4331 /* Make a copy of the signature from the image mempool */
4332 callsig = mono_metadata_signature_dup_full (image, callsig);
4334 csig = mono_metadata_signature_alloc (image, 4);
4335 csig->ret = &mono_defaults.object_class->byval_arg;
4336 csig->params [0] = &mono_defaults.object_class->byval_arg;
4337 csig->params [1] = &mono_defaults.int_class->byval_arg;
4338 csig->params [2] = &mono_defaults.int_class->byval_arg;
4339 csig->params [3] = &mono_defaults.int_class->byval_arg;
4342 /* This is called from runtime code so it has to be cdecl */
4343 csig->call_convention = MONO_CALL_C;
4346 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4347 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4351 param_names [0] = "this";
4352 param_names [1] = "params";
4353 param_names [2] = "exc";
4354 param_names [3] = "method";
4355 mono_mb_set_param_names (mb, param_names);
4357 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4360 /* taken from mono_mb_create_and_cache */
4361 mono_marshal_lock ();
4362 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4363 mono_marshal_unlock ();
4365 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4366 info->d.runtime_invoke.sig = callsig;
4368 /* Somebody may have created it before us */
4371 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4373 mono_marshal_lock ();
4374 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4377 g_hash_table_insert (cache, callsig, res);
4379 mono_free_method (newm);
4381 mono_marshal_unlock ();
4384 /* end mono_mb_create_and_cache */
4393 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4395 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4396 klass->name_space, klass->name);
4398 mono_mb_emit_exception_marshal_directive (mb, msg);
4403 * generates IL code for the icall wrapper (the generated method
4404 * calls the unmanaged code in func)
4405 * The wrapper info for the wrapper is a WrapperInfo structure.
4408 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4410 MonoMethodSignature *csig, *csig2;
4411 MonoMethodBuilder *mb;
4416 g_assert (sig->pinvoke);
4418 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4420 mb->method->save_lmf = 1;
4422 /* Add an explicit this argument */
4424 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4426 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4430 mono_mb_emit_byte (mb, CEE_LDARG_0);
4432 for (i = 0; i < sig->param_count; i++)
4433 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4435 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4436 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4437 mono_mb_emit_calli (mb, csig2);
4438 if (check_exceptions)
4439 emit_thread_interrupt_checkpoint (mb);
4440 mono_mb_emit_byte (mb, CEE_RET);
4443 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4445 if (csig->call_convention == MONO_CALL_VARARG)
4446 csig->call_convention = 0;
4448 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4449 info->d.icall.func = (gpointer)func;
4450 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4457 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4458 MonoMarshalSpec *spec,
4459 int conv_arg, MonoType **conv_arg_type,
4460 MarshalAction action)
4463 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4464 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4470 static MonoClass *ICustomMarshaler = NULL;
4471 static MonoMethod *cleanup_native, *cleanup_managed;
4472 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4473 MonoMethod *get_instance = NULL;
4474 MonoMethodBuilder *mb = m->mb;
4475 char *exception_msg = NULL;
4479 if (!ICustomMarshaler) {
4480 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4482 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4483 goto handle_exception;
4486 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4487 g_assert (cleanup_native);
4488 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4489 g_assert (cleanup_managed);
4490 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4491 g_assert (marshal_managed_to_native);
4492 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4493 g_assert (marshal_native_to_managed);
4495 mono_memory_barrier ();
4496 ICustomMarshaler = klass;
4499 if (spec->data.custom_data.image)
4500 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4502 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4503 g_assert (mtype != NULL);
4504 mono_error_assert_ok (&error);
4505 mklass = mono_class_from_mono_type (mtype);
4506 g_assert (mklass != NULL);
4508 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4509 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4511 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4513 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4514 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4515 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4516 (get_sig->params [0]->type != MONO_TYPE_STRING))
4517 get_instance = NULL;
4521 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);
4524 /* Throw exception and emit compensation code if neccesary */
4525 if (exception_msg) {
4527 case MARSHAL_ACTION_CONV_IN:
4528 case MARSHAL_ACTION_CONV_RESULT:
4529 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4530 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4531 mono_mb_emit_byte (mb, CEE_POP);
4533 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4534 g_free (exception_msg);
4537 case MARSHAL_ACTION_PUSH:
4538 mono_mb_emit_byte (mb, CEE_LDNULL);
4546 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4547 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4550 case MARSHAL_ACTION_CONV_IN:
4552 case MONO_TYPE_CLASS:
4553 case MONO_TYPE_OBJECT:
4554 case MONO_TYPE_STRING:
4555 case MONO_TYPE_ARRAY:
4556 case MONO_TYPE_SZARRAY:
4557 case MONO_TYPE_VALUETYPE:
4561 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4562 g_assert_not_reached ();
4566 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4568 mono_mb_emit_byte (mb, CEE_LDNULL);
4569 mono_mb_emit_stloc (mb, conv_arg);
4571 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4574 /* Minic MS.NET behavior */
4575 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4578 /* Check for null */
4579 mono_mb_emit_ldarg (mb, argnum);
4581 mono_mb_emit_byte (mb, CEE_LDIND_I);
4582 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4584 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4586 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4588 mono_mb_emit_ldarg (mb, argnum);
4590 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4592 if (t->type == MONO_TYPE_VALUETYPE) {
4594 * Since we can't determine the type of the argument, we
4595 * will assume the unmanaged function takes a pointer.
4597 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4599 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4602 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4603 mono_mb_emit_stloc (mb, conv_arg);
4605 mono_mb_patch_branch (mb, pos2);
4608 case MARSHAL_ACTION_CONV_OUT:
4609 /* Check for null */
4610 mono_mb_emit_ldloc (mb, conv_arg);
4611 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4614 mono_mb_emit_ldarg (mb, argnum);
4616 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4618 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4620 mono_mb_emit_ldloc (mb, conv_arg);
4621 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4622 mono_mb_emit_byte (mb, CEE_STIND_REF);
4623 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4624 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4626 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4628 mono_mb_emit_ldloc (mb, conv_arg);
4629 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4631 /* We have nowhere to store the result */
4632 mono_mb_emit_byte (mb, CEE_POP);
4635 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4637 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4639 mono_mb_emit_ldloc (mb, conv_arg);
4641 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4643 mono_mb_patch_branch (mb, pos2);
4646 case MARSHAL_ACTION_PUSH:
4648 mono_mb_emit_ldloc_addr (mb, conv_arg);
4650 mono_mb_emit_ldloc (mb, conv_arg);
4653 case MARSHAL_ACTION_CONV_RESULT:
4654 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4656 mono_mb_emit_stloc (mb, 3);
4658 mono_mb_emit_ldloc (mb, 3);
4659 mono_mb_emit_stloc (mb, loc1);
4661 /* Check for null */
4662 mono_mb_emit_ldloc (mb, 3);
4663 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4665 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4667 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4668 mono_mb_emit_byte (mb, CEE_DUP);
4670 mono_mb_emit_ldloc (mb, 3);
4671 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4672 mono_mb_emit_stloc (mb, 3);
4674 mono_mb_emit_ldloc (mb, loc1);
4675 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4677 mono_mb_patch_branch (mb, pos2);
4680 case MARSHAL_ACTION_MANAGED_CONV_IN:
4681 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4683 mono_mb_emit_byte (mb, CEE_LDNULL);
4684 mono_mb_emit_stloc (mb, conv_arg);
4686 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4689 /* Check for null */
4690 mono_mb_emit_ldarg (mb, argnum);
4692 mono_mb_emit_byte (mb, CEE_LDIND_I);
4693 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4695 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4696 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4698 mono_mb_emit_ldarg (mb, argnum);
4700 mono_mb_emit_byte (mb, CEE_LDIND_I);
4702 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4703 mono_mb_emit_stloc (mb, conv_arg);
4705 mono_mb_patch_branch (mb, pos2);
4708 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4709 g_assert (!t->byref);
4711 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4713 mono_mb_emit_stloc (mb, 3);
4715 mono_mb_emit_ldloc (mb, 3);
4716 mono_mb_emit_stloc (mb, loc1);
4718 /* Check for null */
4719 mono_mb_emit_ldloc (mb, 3);
4720 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4722 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4723 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4724 mono_mb_emit_byte (mb, CEE_DUP);
4726 mono_mb_emit_ldloc (mb, 3);
4727 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4728 mono_mb_emit_stloc (mb, 3);
4730 mono_mb_emit_ldloc (mb, loc1);
4731 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4733 mono_mb_patch_branch (mb, pos2);
4736 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4738 /* Check for null */
4739 mono_mb_emit_ldloc (mb, conv_arg);
4740 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4743 mono_mb_emit_ldarg (mb, argnum);
4745 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4747 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4749 mono_mb_emit_ldloc (mb, conv_arg);
4750 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4751 mono_mb_emit_byte (mb, CEE_STIND_I);
4754 /* Call CleanUpManagedData */
4755 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4757 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4759 mono_mb_emit_ldloc (mb, conv_arg);
4760 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4762 mono_mb_patch_branch (mb, pos2);
4766 g_assert_not_reached ();
4774 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4775 MonoMarshalSpec *spec,
4776 int conv_arg, MonoType **conv_arg_type,
4777 MarshalAction action)
4780 MonoMethodBuilder *mb = m->mb;
4783 case MARSHAL_ACTION_CONV_IN: {
4784 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4786 g_assert (t->type == MONO_TYPE_OBJECT);
4787 g_assert (!t->byref);
4789 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4790 mono_mb_emit_ldarg (mb, argnum);
4791 mono_mb_emit_icon (mb, encoding);
4792 mono_mb_emit_icon (mb, t->attrs);
4793 mono_mb_emit_icall (mb, mono_marshal_asany);
4794 mono_mb_emit_stloc (mb, conv_arg);
4798 case MARSHAL_ACTION_PUSH:
4799 mono_mb_emit_ldloc (mb, conv_arg);
4802 case MARSHAL_ACTION_CONV_OUT: {
4803 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4805 mono_mb_emit_ldarg (mb, argnum);
4806 mono_mb_emit_ldloc (mb, conv_arg);
4807 mono_mb_emit_icon (mb, encoding);
4808 mono_mb_emit_icon (mb, t->attrs);
4809 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4814 g_assert_not_reached ();
4821 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4822 MonoMarshalSpec *spec,
4823 int conv_arg, MonoType **conv_arg_type,
4824 MarshalAction action)
4827 MonoMethodBuilder *mb = m->mb;
4828 MonoClass *klass, *date_time_class;
4831 klass = mono_class_from_mono_type (t);
4833 date_time_class = mono_class_get_date_time_class ();
4836 case MARSHAL_ACTION_CONV_IN:
4837 if (klass == date_time_class) {
4838 /* Convert it to an OLE DATE type */
4839 static MonoMethod *to_oadate;
4842 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4843 g_assert (to_oadate);
4845 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4848 mono_mb_emit_ldarg (mb, argnum);
4849 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4852 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4854 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4856 mono_mb_emit_ldarg_addr (mb, argnum);
4857 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4858 mono_mb_emit_stloc (mb, conv_arg);
4862 mono_mb_patch_branch (mb, pos);
4866 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4867 klass->blittable || klass->enumtype)
4870 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4872 /* store the address of the source into local variable 0 */
4874 mono_mb_emit_ldarg (mb, argnum);
4876 mono_mb_emit_ldarg_addr (mb, argnum);
4878 mono_mb_emit_stloc (mb, 0);
4880 /* allocate space for the native struct and
4881 * store the address into local variable 1 (dest) */
4882 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4883 mono_mb_emit_byte (mb, CEE_PREFIX1);
4884 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4885 mono_mb_emit_stloc (mb, conv_arg);
4888 mono_mb_emit_ldloc (mb, 0);
4889 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4892 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4894 mono_mb_emit_ldloc (mb, conv_arg);
4895 mono_mb_emit_stloc (mb, 1);
4897 /* emit valuetype conversion code */
4898 emit_struct_conv (mb, klass, FALSE);
4902 mono_mb_patch_branch (mb, pos);
4905 case MARSHAL_ACTION_PUSH:
4906 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4908 g_assert (!t->byref);
4910 /* Have to change the signature since the vtype is passed byref */
4911 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4913 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4914 klass->blittable || klass->enumtype)
4915 mono_mb_emit_ldarg_addr (mb, argnum);
4917 mono_mb_emit_ldloc (mb, conv_arg);
4921 if (klass == date_time_class) {
4923 mono_mb_emit_ldloc_addr (mb, conv_arg);
4925 mono_mb_emit_ldloc (mb, conv_arg);
4929 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4930 klass->blittable || klass->enumtype) {
4931 mono_mb_emit_ldarg (mb, argnum);
4934 mono_mb_emit_ldloc (mb, conv_arg);
4936 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4937 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4941 case MARSHAL_ACTION_CONV_OUT:
4942 if (klass == date_time_class) {
4943 /* Convert from an OLE DATE type */
4944 static MonoMethod *from_oadate;
4949 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4951 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4952 g_assert (from_oadate);
4954 mono_mb_emit_ldarg (mb, argnum);
4955 mono_mb_emit_ldloc (mb, conv_arg);
4956 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4957 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4962 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4963 klass->blittable || klass->enumtype)
4967 /* dst = argument */
4968 mono_mb_emit_ldarg (mb, argnum);
4969 mono_mb_emit_stloc (mb, 1);
4971 mono_mb_emit_ldloc (mb, 1);
4972 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4974 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4975 /* src = tmp_locals [i] */
4976 mono_mb_emit_ldloc (mb, conv_arg);
4977 mono_mb_emit_stloc (mb, 0);
4979 /* emit valuetype conversion code */
4980 emit_struct_conv (mb, klass, TRUE);
4984 emit_struct_free (mb, klass, conv_arg);
4987 mono_mb_patch_branch (mb, pos);
4990 case MARSHAL_ACTION_CONV_RESULT:
4991 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4993 mono_mb_emit_stloc (mb, 3);
4997 /* load pointer to returned value type */
4998 g_assert (m->vtaddr_var);
4999 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5000 /* store the address of the source into local variable 0 */
5001 mono_mb_emit_stloc (mb, 0);
5003 mono_mb_emit_ldloc_addr (mb, 3);
5004 mono_mb_emit_stloc (mb, 1);
5006 /* emit valuetype conversion code */
5007 emit_struct_conv (mb, klass, TRUE);
5010 case MARSHAL_ACTION_MANAGED_CONV_IN:
5011 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5012 klass->blittable || klass->enumtype) {
5017 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5019 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5023 mono_mb_emit_ldarg (mb, argnum);
5025 mono_mb_emit_ldarg_addr (mb, argnum);
5026 mono_mb_emit_stloc (mb, 0);
5029 mono_mb_emit_ldloc (mb, 0);
5030 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5033 mono_mb_emit_ldloc_addr (mb, conv_arg);
5034 mono_mb_emit_stloc (mb, 1);
5036 /* emit valuetype conversion code */
5037 emit_struct_conv (mb, klass, TRUE);
5040 mono_mb_patch_branch (mb, pos);
5043 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5044 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5045 klass->blittable || klass->enumtype) {
5049 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5052 /* Check for null */
5053 mono_mb_emit_ldarg (mb, argnum);
5054 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5057 mono_mb_emit_ldloc_addr (mb, conv_arg);
5058 mono_mb_emit_stloc (mb, 0);
5061 mono_mb_emit_ldarg (mb, argnum);
5062 mono_mb_emit_stloc (mb, 1);
5064 /* emit valuetype conversion code */
5065 emit_struct_conv (mb, klass, FALSE);
5067 mono_mb_patch_branch (mb, pos2);
5070 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5071 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5072 klass->blittable || klass->enumtype) {
5073 mono_mb_emit_stloc (mb, 3);
5078 /* load pointer to returned value type */
5079 g_assert (m->vtaddr_var);
5080 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5082 /* store the address of the source into local variable 0 */
5083 mono_mb_emit_stloc (mb, 0);
5084 /* allocate space for the native struct and
5085 * store the address into dst_ptr */
5086 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5087 m->retobj_class = klass;
5088 g_assert (m->retobj_var);
5089 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5090 mono_mb_emit_byte (mb, CEE_CONV_I);
5091 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5092 mono_mb_emit_stloc (mb, 1);
5093 mono_mb_emit_ldloc (mb, 1);
5094 mono_mb_emit_stloc (mb, m->retobj_var);
5096 /* emit valuetype conversion code */
5097 emit_struct_conv (mb, klass, FALSE);
5101 g_assert_not_reached ();
5108 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5109 MonoMarshalSpec *spec,
5110 int conv_arg, MonoType **conv_arg_type,
5111 MarshalAction action)
5115 case MARSHAL_ACTION_CONV_IN:
5116 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5118 case MARSHAL_ACTION_MANAGED_CONV_IN:
5119 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5123 MonoMethodBuilder *mb = m->mb;
5124 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5125 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5129 case MARSHAL_ACTION_CONV_IN:
5130 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5131 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5134 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5137 mono_mb_emit_ldarg (mb, argnum);
5138 mono_mb_emit_byte (mb, CEE_LDIND_I);
5140 mono_mb_emit_ldarg (mb, argnum);
5143 if (conv == MONO_MARSHAL_CONV_INVALID) {
5144 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5145 mono_mb_emit_exception_marshal_directive (mb, msg);
5147 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5149 mono_mb_emit_stloc (mb, conv_arg);
5153 case MARSHAL_ACTION_CONV_OUT:
5154 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5155 if (conv == MONO_MARSHAL_CONV_INVALID) {
5156 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5157 mono_mb_emit_exception_marshal_directive (mb, msg);
5161 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5162 static MonoMethod *m;
5165 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5170 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5171 mono_mb_emit_exception_marshal_directive (mb, msg);
5176 * Have to allocate a new string with the same length as the original, and
5177 * copy the contents of the buffer pointed to by CONV_ARG into it.
5179 g_assert (t->byref);
5180 mono_mb_emit_ldarg (mb, argnum);
5181 mono_mb_emit_ldloc (mb, conv_arg);
5182 mono_mb_emit_ldarg (mb, argnum);
5183 mono_mb_emit_byte (mb, CEE_LDIND_I);
5184 mono_mb_emit_managed_call (mb, m, NULL);
5185 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5186 mono_mb_emit_byte (mb, CEE_STIND_REF);
5187 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5189 mono_mb_emit_ldarg (mb, argnum);
5190 mono_mb_emit_ldloc (mb, conv_arg);
5191 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5192 mono_mb_emit_byte (mb, stind_op);
5197 mono_mb_emit_ldloc (mb, conv_arg);
5198 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5199 mono_mb_emit_icall (mb, mono_free_bstr);
5201 mono_mb_emit_icall (mb, mono_marshal_free);
5205 case MARSHAL_ACTION_PUSH:
5206 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5207 mono_mb_emit_ldloc_addr (mb, conv_arg);
5209 mono_mb_emit_ldloc (mb, conv_arg);
5212 case MARSHAL_ACTION_CONV_RESULT:
5213 mono_mb_emit_stloc (mb, 0);
5215 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5216 if (conv == MONO_MARSHAL_CONV_INVALID) {
5217 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5218 mono_mb_emit_exception_marshal_directive (mb, msg);
5222 mono_mb_emit_ldloc (mb, 0);
5223 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5224 mono_mb_emit_stloc (mb, 3);
5226 /* free the string */
5227 mono_mb_emit_ldloc (mb, 0);
5228 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5229 mono_mb_emit_icall (mb, mono_free_bstr);
5231 mono_mb_emit_icall (mb, mono_marshal_free);
5234 case MARSHAL_ACTION_MANAGED_CONV_IN:
5235 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5237 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5240 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5244 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5245 if (conv == MONO_MARSHAL_CONV_INVALID) {
5246 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5247 mono_mb_emit_exception_marshal_directive (mb, msg);
5251 mono_mb_emit_ldarg (mb, argnum);
5253 mono_mb_emit_byte (mb, CEE_LDIND_I);
5254 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5255 mono_mb_emit_stloc (mb, conv_arg);
5258 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5262 mono_mb_emit_ldarg (mb, argnum);
5263 mono_mb_emit_ldloc (mb, conv_arg);
5264 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5265 mono_mb_emit_byte (mb, stind_op);
5270 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5271 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5272 /* We need to make a copy so the caller is able to free it */
5273 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5275 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5276 mono_mb_emit_stloc (mb, 3);
5280 g_assert_not_reached ();
5288 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5289 MonoMarshalSpec *spec, int conv_arg,
5290 MonoType **conv_arg_type, MarshalAction action)
5293 if (action == MARSHAL_ACTION_CONV_IN)
5294 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5296 MonoMethodBuilder *mb = m->mb;
5299 case MARSHAL_ACTION_CONV_IN: {
5300 MonoType *intptr_type;
5301 int dar_release_slot, pos;
5303 intptr_type = &mono_defaults.int_class->byval_arg;
5304 conv_arg = mono_mb_add_local (mb, intptr_type);
5305 *conv_arg_type = intptr_type;
5307 if (!sh_dangerous_add_ref)
5308 init_safe_handle ();
5310 mono_mb_emit_ldarg (mb, argnum);
5311 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5312 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5314 mono_mb_patch_branch (mb, pos);
5317 * My tests in show that ref SafeHandles are not really
5318 * passed as ref objects. Instead a NULL is passed as the
5321 mono_mb_emit_icon (mb, 0);
5322 mono_mb_emit_stloc (mb, conv_arg);
5326 /* Create local to hold the ref parameter to DangerousAddRef */
5327 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5329 /* set release = false; */
5330 mono_mb_emit_icon (mb, 0);
5331 mono_mb_emit_stloc (mb, dar_release_slot);
5333 /* safehandle.DangerousAddRef (ref release) */
5334 mono_mb_emit_ldarg (mb, argnum);
5335 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5336 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5338 /* Pull the handle field from SafeHandle */
5339 mono_mb_emit_ldarg (mb, argnum);
5340 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5341 mono_mb_emit_byte (mb, CEE_LDIND_I);
5342 mono_mb_emit_stloc (mb, conv_arg);
5347 case MARSHAL_ACTION_PUSH:
5349 mono_mb_emit_ldloc_addr (mb, conv_arg);
5351 mono_mb_emit_ldloc (mb, conv_arg);
5354 case MARSHAL_ACTION_CONV_OUT: {
5355 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5356 int dar_release_slot = conv_arg + 1;
5359 if (!sh_dangerous_release)
5360 init_safe_handle ();
5366 * My tests indicate that ref SafeHandles parameters are not actually
5367 * passed by ref, but instead a new Handle is created regardless of
5368 * whether a change happens in the unmanaged side.
5370 * Also, the Handle is created before calling into unmanaged code,
5371 * but we do not support that mechanism (getting to the original
5372 * handle) and it makes no difference where we create this
5374 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5376 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5379 /* refval = new SafeHandleDerived ()*/
5380 mono_mb_emit_ldarg (mb, argnum);
5381 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5382 mono_mb_emit_byte (mb, CEE_STIND_REF);
5384 /* refval.handle = returned_handle */
5385 mono_mb_emit_ldarg (mb, argnum);
5386 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5387 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5388 mono_mb_emit_ldloc (mb, conv_arg);
5389 mono_mb_emit_byte (mb, CEE_STIND_I);
5391 mono_mb_emit_ldloc (mb, dar_release_slot);
5392 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5393 mono_mb_emit_ldarg (mb, argnum);
5394 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5395 mono_mb_patch_branch (mb, label_next);
5400 case MARSHAL_ACTION_CONV_RESULT: {
5401 MonoMethod *ctor = NULL;
5402 int intptr_handle_slot;
5404 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5405 mono_mb_emit_byte (mb, CEE_POP);
5406 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5410 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5412 mono_mb_emit_byte (mb, CEE_POP);
5413 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5416 /* Store the IntPtr results into a local */
5417 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5418 mono_mb_emit_stloc (mb, intptr_handle_slot);
5420 /* Create return value */
5421 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5422 mono_mb_emit_stloc (mb, 3);
5424 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5425 mono_mb_emit_ldloc (mb, 3);
5426 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5427 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5428 mono_mb_emit_byte (mb, CEE_STIND_I);
5432 case MARSHAL_ACTION_MANAGED_CONV_IN:
5433 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5436 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5437 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5440 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5441 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5444 printf ("Unhandled case for MarshalAction: %d\n", action);
5452 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5453 MonoMarshalSpec *spec, int conv_arg,
5454 MonoType **conv_arg_type, MarshalAction action)
5457 if (action == MARSHAL_ACTION_CONV_IN)
5458 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5460 MonoMethodBuilder *mb = m->mb;
5463 case MARSHAL_ACTION_CONV_IN: {
5464 MonoType *intptr_type;
5466 intptr_type = &mono_defaults.int_class->byval_arg;
5467 conv_arg = mono_mb_add_local (mb, intptr_type);
5468 *conv_arg_type = intptr_type;
5471 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5472 mono_mb_emit_exception_marshal_directive (mb, msg);
5475 mono_mb_emit_ldarg_addr (mb, argnum);
5476 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5477 mono_mb_emit_byte (mb, CEE_ADD);
5478 mono_mb_emit_byte (mb, CEE_LDIND_I);
5479 mono_mb_emit_stloc (mb, conv_arg);
5483 case MARSHAL_ACTION_PUSH:
5484 mono_mb_emit_ldloc (mb, conv_arg);
5487 case MARSHAL_ACTION_CONV_OUT: {
5488 /* no resource release required */
5492 case MARSHAL_ACTION_CONV_RESULT: {
5493 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5494 mono_mb_emit_exception_marshal_directive (mb, msg);
5498 case MARSHAL_ACTION_MANAGED_CONV_IN:
5499 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5502 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5503 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5506 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5507 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5510 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5518 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5519 MonoMarshalSpec *spec,
5520 int conv_arg, MonoType **conv_arg_type,
5521 MarshalAction action)
5524 if (action == MARSHAL_ACTION_CONV_IN)
5525 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5527 MonoMethodBuilder *mb = m->mb;
5528 MonoClass *klass = mono_class_from_mono_type (t);
5532 case MARSHAL_ACTION_CONV_IN:
5533 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5534 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5536 m->orig_conv_args [argnum] = 0;
5538 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5539 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5540 mono_mb_emit_exception_marshal_directive (mb, msg);
5544 if (klass->delegate) {
5546 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5547 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5548 mono_mb_emit_exception_marshal_directive (mb, msg);
5550 mono_mb_emit_byte (mb, CEE_LDNULL);
5551 mono_mb_emit_stloc (mb, conv_arg);
5553 mono_mb_emit_ldarg (mb, argnum);
5554 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5555 mono_mb_emit_stloc (mb, conv_arg);
5557 } else if (klass == mono_defaults.stringbuilder_class) {
5558 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5559 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5563 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5564 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5565 mono_mb_emit_exception_marshal_directive (mb, msg);
5571 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5574 if (conv == MONO_MARSHAL_CONV_INVALID) {
5575 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5576 mono_mb_emit_exception_marshal_directive (mb, msg);
5580 mono_mb_emit_ldarg (mb, argnum);
5582 mono_mb_emit_byte (mb, CEE_LDIND_I);
5584 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5585 mono_mb_emit_stloc (mb, conv_arg);
5586 } else if (klass->blittable) {
5587 mono_mb_emit_byte (mb, CEE_LDNULL);
5588 mono_mb_emit_stloc (mb, conv_arg);
5590 mono_mb_emit_ldarg (mb, argnum);
5591 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5593 mono_mb_emit_ldarg (mb, argnum);
5594 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5595 mono_mb_emit_stloc (mb, conv_arg);
5597 mono_mb_patch_branch (mb, pos);
5600 mono_mb_emit_byte (mb, CEE_LDNULL);
5601 mono_mb_emit_stloc (mb, conv_arg);
5604 /* we dont need any conversions for out parameters */
5605 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5608 mono_mb_emit_ldarg (mb, argnum);
5609 mono_mb_emit_byte (mb, CEE_LDIND_I);
5612 mono_mb_emit_ldarg (mb, argnum);
5613 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5614 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5617 /* store the address of the source into local variable 0 */
5618 mono_mb_emit_stloc (mb, 0);
5619 mono_mb_emit_ldloc (mb, 0);
5620 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5622 /* allocate space for the native struct and store the address */
5623 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5624 mono_mb_emit_byte (mb, CEE_PREFIX1);
5625 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5626 mono_mb_emit_stloc (mb, conv_arg);
5629 /* Need to store the original buffer so we can free it later */
5630 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5631 mono_mb_emit_ldloc (mb, conv_arg);
5632 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5635 /* set the src_ptr */
5636 mono_mb_emit_ldloc (mb, 0);
5637 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5638 mono_mb_emit_stloc (mb, 0);
5641 mono_mb_emit_ldloc (mb, conv_arg);
5642 mono_mb_emit_stloc (mb, 1);
5644 /* emit valuetype conversion code */
5645 emit_struct_conv (mb, klass, FALSE);
5647 mono_mb_patch_branch (mb, pos);
5651 case MARSHAL_ACTION_CONV_OUT:
5652 if (klass == mono_defaults.stringbuilder_class) {
5654 MonoMarshalNative encoding;
5655 MonoMarshalConv conv;
5657 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5658 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5660 g_assert (encoding != -1);
5663 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5667 mono_mb_emit_ldarg (mb, argnum);
5668 mono_mb_emit_ldloc (mb, conv_arg);
5671 case MONO_NATIVE_LPWSTR:
5672 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5674 case MONO_NATIVE_LPSTR:
5675 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5678 g_assert_not_reached ();
5681 mono_mb_emit_byte (mb, CEE_STIND_REF);
5683 mono_mb_emit_ldarg (mb, argnum);
5684 mono_mb_emit_ldloc (mb, conv_arg);
5686 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5690 mono_mb_emit_ldloc (mb, conv_arg);
5691 mono_mb_emit_icall (mb, mono_marshal_free);
5696 if (klass->delegate) {
5698 mono_mb_emit_ldarg (mb, argnum);
5699 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5700 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5701 mono_mb_emit_ldloc (mb, conv_arg);
5702 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5703 mono_mb_emit_byte (mb, CEE_STIND_REF);
5708 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5709 /* allocate a new object */
5710 mono_mb_emit_ldarg (mb, argnum);
5711 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5712 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5713 mono_mb_emit_byte (mb, CEE_STIND_REF);
5716 /* dst = *argument */
5717 mono_mb_emit_ldarg (mb, argnum);
5720 mono_mb_emit_byte (mb, CEE_LDIND_I);
5722 mono_mb_emit_stloc (mb, 1);
5724 mono_mb_emit_ldloc (mb, 1);
5725 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5727 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5728 mono_mb_emit_ldloc (mb, 1);
5729 mono_mb_emit_icon (mb, sizeof (MonoObject));
5730 mono_mb_emit_byte (mb, CEE_ADD);
5731 mono_mb_emit_stloc (mb, 1);
5733 /* src = tmp_locals [i] */
5734 mono_mb_emit_ldloc (mb, conv_arg);
5735 mono_mb_emit_stloc (mb, 0);
5737 /* emit valuetype conversion code */
5738 emit_struct_conv (mb, klass, TRUE);
5740 /* Free the structure returned by the native code */
5741 emit_struct_free (mb, klass, conv_arg);
5743 if (m->orig_conv_args [argnum]) {
5745 * If the native function changed the pointer, then free
5746 * the original structure plus the new pointer.
5748 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5749 mono_mb_emit_ldloc (mb, conv_arg);
5750 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5752 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5753 g_assert (m->orig_conv_args [argnum]);
5755 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 mono_mb_emit_icall (mb, mono_marshal_free);
5761 mono_mb_patch_branch (mb, pos2);
5765 /* Free the original structure passed to native code */
5766 emit_struct_free (mb, klass, conv_arg);
5768 mono_mb_patch_branch (mb, pos);
5771 case MARSHAL_ACTION_PUSH:
5773 mono_mb_emit_ldloc_addr (mb, conv_arg);
5775 mono_mb_emit_ldloc (mb, conv_arg);
5778 case MARSHAL_ACTION_CONV_RESULT:
5779 if (klass->delegate) {
5780 g_assert (!t->byref);
5781 mono_mb_emit_stloc (mb, 0);
5782 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5783 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5784 mono_mb_emit_ldloc (mb, 0);
5785 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5786 mono_mb_emit_stloc (mb, 3);
5789 mono_mb_emit_stloc (mb, 0);
5791 /* Make a copy since emit_conv modifies local 0 */
5792 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5793 mono_mb_emit_ldloc (mb, 0);
5794 mono_mb_emit_stloc (mb, loc);
5796 mono_mb_emit_byte (mb, CEE_LDNULL);
5797 mono_mb_emit_stloc (mb, 3);
5799 mono_mb_emit_ldloc (mb, 0);
5800 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5802 /* allocate result object */
5804 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5805 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5806 mono_mb_emit_stloc (mb, 3);
5810 mono_mb_emit_ldloc (mb, 3);
5811 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5812 mono_mb_emit_stloc (mb, 1);
5814 /* emit conversion code */
5815 emit_struct_conv (mb, klass, TRUE);
5817 emit_struct_free (mb, klass, loc);
5819 /* Free the pointer allocated by unmanaged code */
5820 mono_mb_emit_ldloc (mb, loc);
5821 mono_mb_emit_icall (mb, mono_marshal_free);
5822 mono_mb_patch_branch (mb, pos);
5826 case MARSHAL_ACTION_MANAGED_CONV_IN:
5827 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5829 if (klass->delegate) {
5830 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5831 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5832 mono_mb_emit_ldarg (mb, argnum);
5834 mono_mb_emit_byte (mb, CEE_LDIND_I);
5835 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5836 mono_mb_emit_stloc (mb, conv_arg);
5840 if (klass == mono_defaults.stringbuilder_class) {
5841 MonoMarshalNative encoding;
5843 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5846 g_assert (encoding == MONO_NATIVE_LPSTR);
5848 g_assert (!t->byref);
5849 g_assert (encoding != -1);
5851 mono_mb_emit_ldarg (mb, argnum);
5852 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5853 mono_mb_emit_stloc (mb, conv_arg);
5857 /* The class can not have an automatic layout */
5858 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5859 mono_mb_emit_auto_layout_exception (mb, klass);
5863 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5864 mono_mb_emit_byte (mb, CEE_LDNULL);
5865 mono_mb_emit_stloc (mb, conv_arg);
5870 mono_mb_emit_ldarg (mb, argnum);
5874 /* Check for NULL and raise an exception */
5875 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5877 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5879 mono_mb_patch_branch (mb, pos2);
5880 mono_mb_emit_ldarg (mb, argnum);
5881 mono_mb_emit_byte (mb, CEE_LDIND_I);
5884 mono_mb_emit_stloc (mb, 0);
5886 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5887 mono_mb_emit_stloc (mb, conv_arg);
5889 mono_mb_emit_ldloc (mb, 0);
5890 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5892 /* Create and set dst */
5893 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5894 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5895 mono_mb_emit_stloc (mb, conv_arg);
5896 mono_mb_emit_ldloc (mb, conv_arg);
5897 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5898 mono_mb_emit_stloc (mb, 1);
5900 /* emit valuetype conversion code */
5901 emit_struct_conv (mb, klass, TRUE);
5903 mono_mb_patch_branch (mb, pos);
5906 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5907 if (klass->delegate) {
5910 mono_mb_emit_ldarg (mb, argnum);
5911 mono_mb_emit_ldloc (mb, conv_arg);
5912 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5913 mono_mb_emit_byte (mb, stind_op);
5919 /* Check for null */
5920 mono_mb_emit_ldloc (mb, conv_arg);
5921 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5924 mono_mb_emit_byte (mb, CEE_STIND_REF);
5925 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5927 mono_mb_patch_branch (mb, pos);
5930 mono_mb_emit_ldloc (mb, conv_arg);
5931 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5932 mono_mb_emit_stloc (mb, 0);
5934 /* Allocate and set dest */
5935 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5936 mono_mb_emit_byte (mb, CEE_CONV_I);
5937 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5938 mono_mb_emit_stloc (mb, 1);
5940 /* Update argument pointer */
5941 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_ldloc (mb, 1);
5943 mono_mb_emit_byte (mb, CEE_STIND_I);
5945 /* emit valuetype conversion code */
5946 emit_struct_conv (mb, klass, FALSE);
5948 mono_mb_patch_branch (mb, pos2);
5949 } else if (klass == mono_defaults.stringbuilder_class) {
5950 // FIXME: What to do here ?
5952 /* byval [Out] marshalling */
5954 /* FIXME: Handle null */
5957 mono_mb_emit_ldloc (mb, conv_arg);
5958 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5959 mono_mb_emit_stloc (mb, 0);
5962 mono_mb_emit_ldarg (mb, argnum);
5963 mono_mb_emit_stloc (mb, 1);
5965 /* emit valuetype conversion code */
5966 emit_struct_conv (mb, klass, FALSE);
5970 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5971 if (klass->delegate) {
5972 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5973 mono_mb_emit_stloc (mb, 3);
5977 /* The class can not have an automatic layout */
5978 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5979 mono_mb_emit_auto_layout_exception (mb, klass);
5983 mono_mb_emit_stloc (mb, 0);
5984 /* Check for null */
5985 mono_mb_emit_ldloc (mb, 0);
5986 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5987 mono_mb_emit_byte (mb, CEE_LDNULL);
5988 mono_mb_emit_stloc (mb, 3);
5989 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5991 mono_mb_patch_branch (mb, pos);
5994 mono_mb_emit_ldloc (mb, 0);
5995 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5996 mono_mb_emit_stloc (mb, 0);
5998 /* Allocate and set dest */
5999 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6000 mono_mb_emit_byte (mb, CEE_CONV_I);
6001 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6002 mono_mb_emit_byte (mb, CEE_DUP);
6003 mono_mb_emit_stloc (mb, 1);
6004 mono_mb_emit_stloc (mb, 3);
6006 emit_struct_conv (mb, klass, FALSE);
6008 mono_mb_patch_branch (mb, pos2);
6012 g_assert_not_reached ();
6023 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6024 MonoMarshalSpec *spec,
6025 int conv_arg, MonoType **conv_arg_type,
6026 MarshalAction action)
6028 MonoMethodBuilder *mb = m->mb;
6029 static MonoMethod *get_object_for_native_variant = NULL;
6030 static MonoMethod *get_native_variant_for_object = NULL;
6032 if (!get_object_for_native_variant)
6033 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6034 g_assert (get_object_for_native_variant);
6036 if (!get_native_variant_for_object)
6037 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6038 g_assert (get_native_variant_for_object);
6041 case MARSHAL_ACTION_CONV_IN: {
6042 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6045 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6047 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6049 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6052 mono_mb_emit_ldarg (mb, argnum);
6054 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6055 mono_mb_emit_ldloc_addr (mb, conv_arg);
6056 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6060 case MARSHAL_ACTION_CONV_OUT: {
6061 static MonoMethod *variant_clear = NULL;
6064 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6065 g_assert (variant_clear);
6068 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6069 mono_mb_emit_ldarg (mb, argnum);
6070 mono_mb_emit_ldloc_addr (mb, conv_arg);
6071 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6072 mono_mb_emit_byte (mb, CEE_STIND_REF);
6075 mono_mb_emit_ldloc_addr (mb, conv_arg);
6076 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6080 case MARSHAL_ACTION_PUSH:
6082 mono_mb_emit_ldloc_addr (mb, conv_arg);
6084 mono_mb_emit_ldloc (mb, conv_arg);
6087 case MARSHAL_ACTION_CONV_RESULT: {
6088 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6089 mono_mb_emit_exception_marshal_directive (mb, msg);
6093 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6094 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6097 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6099 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6101 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6105 mono_mb_emit_ldarg (mb, argnum);
6107 mono_mb_emit_ldarg_addr (mb, argnum);
6108 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6109 mono_mb_emit_stloc (mb, conv_arg);
6113 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6114 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6115 mono_mb_emit_ldloc (mb, conv_arg);
6116 mono_mb_emit_ldarg (mb, argnum);
6117 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6122 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6123 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6124 mono_mb_emit_exception_marshal_directive (mb, msg);
6129 g_assert_not_reached ();
6135 #endif /* DISABLE_COM */
6136 #endif /* DISABLE_JIT */
6139 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6141 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6142 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6144 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6146 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6158 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6159 MonoMarshalSpec *spec,
6160 int conv_arg, MonoType **conv_arg_type,
6161 MarshalAction action)
6165 case MARSHAL_ACTION_CONV_IN:
6166 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6168 case MARSHAL_ACTION_MANAGED_CONV_IN:
6169 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6173 MonoMethodBuilder *mb = m->mb;
6174 MonoClass *klass = mono_class_from_mono_type (t);
6175 gboolean need_convert, need_free;
6176 MonoMarshalNative encoding;
6178 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6181 case MARSHAL_ACTION_CONV_IN:
6182 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6183 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6185 if (klass->element_class->blittable) {
6186 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_byte (mb, CEE_LDIND_I);
6189 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6190 mono_mb_emit_stloc (mb, conv_arg);
6193 guint32 label1, label2, label3;
6194 int index_var, src_var, dest_ptr, esize;
6195 MonoMarshalConv conv;
6196 gboolean is_string = FALSE;
6198 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6200 eklass = klass->element_class;
6202 if (eklass == mono_defaults.string_class) {
6204 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6206 else if (eklass == mono_defaults.stringbuilder_class) {
6208 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6211 conv = MONO_MARSHAL_CONV_INVALID;
6213 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6214 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6215 mono_mb_emit_exception_marshal_directive (mb, msg);
6219 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6220 mono_mb_emit_ldarg (mb, argnum);
6222 mono_mb_emit_byte (mb, CEE_LDIND_I);
6223 mono_mb_emit_stloc (mb, src_var);
6226 mono_mb_emit_ldloc (mb, src_var);
6227 mono_mb_emit_stloc (mb, conv_arg);
6228 mono_mb_emit_ldloc (mb, src_var);
6229 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6232 esize = sizeof (gpointer);
6233 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6234 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6236 esize = mono_class_native_size (eklass, NULL);
6238 /* allocate space for the native struct and store the address */
6239 mono_mb_emit_icon (mb, esize);
6240 mono_mb_emit_ldloc (mb, src_var);
6241 mono_mb_emit_byte (mb, CEE_LDLEN);
6243 if (eklass == mono_defaults.string_class) {
6244 /* Make the array bigger for the terminating null */
6245 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6246 mono_mb_emit_byte (mb, CEE_ADD);
6248 mono_mb_emit_byte (mb, CEE_MUL);
6249 mono_mb_emit_byte (mb, CEE_PREFIX1);
6250 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6251 mono_mb_emit_stloc (mb, conv_arg);
6253 mono_mb_emit_ldloc (mb, conv_arg);
6254 mono_mb_emit_stloc (mb, dest_ptr);
6256 /* Emit marshalling loop */
6257 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6258 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6259 mono_mb_emit_stloc (mb, index_var);
6260 label2 = mono_mb_get_label (mb);
6261 mono_mb_emit_ldloc (mb, index_var);
6262 mono_mb_emit_ldloc (mb, src_var);
6263 mono_mb_emit_byte (mb, CEE_LDLEN);
6264 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6266 /* Emit marshalling code */
6270 mono_mb_emit_ldloc (mb, dest_ptr);
6271 mono_mb_emit_ldloc (mb, src_var);
6272 mono_mb_emit_ldloc (mb, index_var);
6273 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6274 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6275 mono_mb_emit_byte (mb, stind_op);
6277 /* set the src_ptr */
6278 mono_mb_emit_ldloc (mb, src_var);
6279 mono_mb_emit_ldloc (mb, index_var);
6280 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6281 mono_mb_emit_stloc (mb, 0);
6284 mono_mb_emit_ldloc (mb, dest_ptr);
6285 mono_mb_emit_stloc (mb, 1);
6287 /* emit valuetype conversion code */
6288 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6291 mono_mb_emit_add_to_local (mb, index_var, 1);
6292 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6294 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6296 mono_mb_patch_branch (mb, label3);
6298 if (eklass == mono_defaults.string_class) {
6299 /* Null terminate */
6300 mono_mb_emit_ldloc (mb, dest_ptr);
6301 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6302 mono_mb_emit_byte (mb, CEE_STIND_REF);
6305 mono_mb_patch_branch (mb, label1);
6310 case MARSHAL_ACTION_CONV_OUT:
6311 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6312 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);
6313 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6316 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6317 int param_num = spec->data.array_data.param_num;
6318 MonoType *param_type;
6320 param_type = m->sig->params [param_num];
6322 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6323 char *msg = g_strdup ("Not implemented.");
6324 mono_mb_emit_exception_marshal_directive (mb, msg);
6329 mono_mb_emit_ldarg (mb, argnum);
6331 /* Create the managed array */
6332 mono_mb_emit_ldarg (mb, param_num);
6333 if (m->sig->params [param_num]->byref)
6334 // FIXME: Support other types
6335 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6336 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6337 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6338 /* Store into argument */
6339 mono_mb_emit_byte (mb, CEE_STIND_REF);
6343 if (need_convert || need_free) {
6344 /* FIXME: Optimize blittable case */
6346 guint32 label1, label2, label3;
6347 int index_var, src_ptr, loc, esize;
6349 eklass = klass->element_class;
6350 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6351 esize = sizeof (gpointer);
6352 else if (eklass == mono_defaults.char_class)
6353 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6355 esize = mono_class_native_size (eklass, NULL);
6356 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6357 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6360 mono_mb_emit_ldarg (mb, argnum);
6362 mono_mb_emit_byte (mb, CEE_LDIND_I);
6363 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6365 mono_mb_emit_ldloc (mb, conv_arg);
6366 mono_mb_emit_stloc (mb, src_ptr);
6368 /* Emit marshalling loop */
6369 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6370 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6371 mono_mb_emit_stloc (mb, index_var);
6372 label2 = mono_mb_get_label (mb);
6373 mono_mb_emit_ldloc (mb, index_var);
6374 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6377 mono_mb_emit_byte (mb, CEE_LDLEN);
6378 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6380 /* Emit marshalling code */
6382 if (eklass == mono_defaults.stringbuilder_class) {
6383 gboolean need_free2;
6384 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6386 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6389 mono_mb_emit_ldarg (mb, argnum);
6391 mono_mb_emit_byte (mb, CEE_LDIND_I);
6392 mono_mb_emit_ldloc (mb, index_var);
6393 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6396 mono_mb_emit_ldloc (mb, src_ptr);
6397 mono_mb_emit_byte (mb, CEE_LDIND_I);
6399 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6403 mono_mb_emit_ldloc (mb, src_ptr);
6404 mono_mb_emit_byte (mb, CEE_LDIND_I);
6406 mono_mb_emit_icall (mb, mono_marshal_free);
6409 else if (eklass == mono_defaults.string_class) {
6412 mono_mb_emit_ldloc (mb, src_ptr);
6413 mono_mb_emit_byte (mb, CEE_LDIND_I);
6415 mono_mb_emit_icall (mb, mono_marshal_free);
6420 /* set the src_ptr */
6421 mono_mb_emit_ldloc (mb, src_ptr);
6422 mono_mb_emit_stloc (mb, 0);
6425 mono_mb_emit_ldarg (mb, argnum);
6427 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6428 mono_mb_emit_ldloc (mb, index_var);
6429 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6430 mono_mb_emit_stloc (mb, 1);
6432 /* emit valuetype conversion code */
6433 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6437 mono_mb_emit_ldloc (mb, src_ptr);
6438 mono_mb_emit_stloc (mb, loc);
6439 mono_mb_emit_ldloc (mb, loc);
6441 emit_struct_free (mb, eklass, loc);
6445 mono_mb_emit_add_to_local (mb, index_var, 1);
6446 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6448 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6450 mono_mb_patch_branch (mb, label1);
6451 mono_mb_patch_branch (mb, label3);
6454 if (klass->element_class->blittable) {
6455 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6457 mono_mb_emit_ldarg (mb, argnum);
6459 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6460 mono_mb_emit_ldloc (mb, conv_arg);
6461 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6466 case MARSHAL_ACTION_PUSH:
6468 mono_mb_emit_ldloc_addr (mb, conv_arg);
6470 mono_mb_emit_ldloc (mb, conv_arg);
6473 case MARSHAL_ACTION_CONV_RESULT:
6474 /* fixme: we need conversions here */
6475 mono_mb_emit_stloc (mb, 3);
6478 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6480 guint32 label1, label2, label3;
6481 int index_var, src_ptr, esize, param_num, num_elem;
6482 MonoMarshalConv conv;
6483 gboolean is_string = FALSE;
6485 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6486 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6489 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6490 mono_mb_emit_exception_marshal_directive (mb, msg);
6494 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6495 mono_mb_emit_exception_marshal_directive (mb, msg);
6498 if (spec->native != MONO_NATIVE_LPARRAY) {
6499 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6500 mono_mb_emit_exception_marshal_directive (mb, msg);
6504 /* FIXME: t is from the method which is wrapped, not the delegate type */
6505 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6507 param_num = spec->data.array_data.param_num;
6508 num_elem = spec->data.array_data.num_elem;
6509 if (spec->data.array_data.elem_mult == 0)
6510 /* param_num is not specified */
6513 if (param_num == -1) {
6514 if (num_elem <= 0) {
6515 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6516 mono_mb_emit_exception_marshal_directive (mb, msg);
6521 /* FIXME: Optimize blittable case */
6523 eklass = klass->element_class;
6524 if (eklass == mono_defaults.string_class) {
6526 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6528 else if (eklass == mono_defaults.stringbuilder_class) {
6530 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6533 conv = MONO_MARSHAL_CONV_INVALID;
6535 mono_marshal_load_type_info (eklass);
6538 esize = sizeof (gpointer);
6540 esize = mono_class_native_size (eklass, NULL);
6541 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6543 mono_mb_emit_byte (mb, CEE_LDNULL);
6544 mono_mb_emit_stloc (mb, conv_arg);
6546 /* Check param index */
6547 if (param_num != -1) {
6548 if (param_num >= m->sig->param_count) {
6549 char *msg = g_strdup ("Array size control parameter index is out of range.");
6550 mono_mb_emit_exception_marshal_directive (mb, msg);
6553 switch (m->sig->params [param_num]->type) {
6566 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6567 mono_mb_emit_exception_marshal_directive (mb, msg);
6574 mono_mb_emit_ldarg (mb, argnum);
6575 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6577 mono_mb_emit_ldarg (mb, argnum);
6578 mono_mb_emit_stloc (mb, src_ptr);
6580 /* Create managed array */
6582 * The LPArray marshalling spec says that sometimes param_num starts
6583 * from 1, sometimes it starts from 0. But MS seems to allways start
6587 if (param_num == -1) {
6588 mono_mb_emit_icon (mb, num_elem);
6590 mono_mb_emit_ldarg (mb, param_num);
6592 mono_mb_emit_icon (mb, num_elem);
6593 mono_mb_emit_byte (mb, CEE_ADD);
6595 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6598 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6599 mono_mb_emit_stloc (mb, conv_arg);
6601 if (eklass->blittable) {
6602 mono_mb_emit_ldloc (mb, conv_arg);
6603 mono_mb_emit_byte (mb, CEE_CONV_I);
6604 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6605 mono_mb_emit_byte (mb, CEE_ADD);
6606 mono_mb_emit_ldarg (mb, argnum);
6607 mono_mb_emit_ldloc (mb, conv_arg);
6608 mono_mb_emit_byte (mb, CEE_LDLEN);
6609 mono_mb_emit_icon (mb, esize);
6610 mono_mb_emit_byte (mb, CEE_MUL);
6611 mono_mb_emit_byte (mb, CEE_PREFIX1);
6612 mono_mb_emit_byte (mb, CEE_CPBLK);
6616 /* Emit marshalling loop */
6617 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6618 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6619 mono_mb_emit_stloc (mb, index_var);
6620 label2 = mono_mb_get_label (mb);
6621 mono_mb_emit_ldloc (mb, index_var);
6622 mono_mb_emit_ldloc (mb, conv_arg);
6623 mono_mb_emit_byte (mb, CEE_LDLEN);
6624 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6626 /* Emit marshalling code */
6628 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6630 mono_mb_emit_ldloc (mb, conv_arg);
6631 mono_mb_emit_ldloc (mb, index_var);
6633 mono_mb_emit_ldloc (mb, src_ptr);
6634 mono_mb_emit_byte (mb, CEE_LDIND_I);
6636 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6637 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6640 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6641 mono_mb_emit_exception_marshal_directive (mb, msg);
6645 mono_mb_emit_add_to_local (mb, index_var, 1);
6646 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6648 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6650 mono_mb_patch_branch (mb, label1);
6651 mono_mb_patch_branch (mb, label3);
6655 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6657 guint32 label1, label2, label3;
6658 int index_var, dest_ptr, esize, param_num, num_elem;
6659 MonoMarshalConv conv;
6660 gboolean is_string = FALSE;
6663 /* Already handled in CONV_IN */
6666 /* These are already checked in CONV_IN */
6667 g_assert (!t->byref);
6668 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6669 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6671 param_num = spec->data.array_data.param_num;
6672 num_elem = spec->data.array_data.num_elem;
6674 if (spec->data.array_data.elem_mult == 0)
6675 /* param_num is not specified */
6678 if (param_num == -1) {
6679 if (num_elem <= 0) {
6680 g_assert_not_reached ();
6684 /* FIXME: Optimize blittable case */
6686 eklass = klass->element_class;
6687 if (eklass == mono_defaults.string_class) {
6689 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6691 else if (eklass == mono_defaults.stringbuilder_class) {
6693 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6696 conv = MONO_MARSHAL_CONV_INVALID;
6698 mono_marshal_load_type_info (eklass);
6701 esize = sizeof (gpointer);
6703 esize = mono_class_native_size (eklass, NULL);
6705 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6708 mono_mb_emit_ldloc (mb, conv_arg);
6709 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6711 mono_mb_emit_ldarg (mb, argnum);
6712 mono_mb_emit_stloc (mb, dest_ptr);
6714 if (eklass->blittable) {
6716 mono_mb_emit_ldarg (mb, argnum);
6718 mono_mb_emit_ldloc (mb, conv_arg);
6719 mono_mb_emit_byte (mb, CEE_CONV_I);
6720 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6721 mono_mb_emit_byte (mb, CEE_ADD);
6723 mono_mb_emit_ldloc (mb, conv_arg);
6724 mono_mb_emit_byte (mb, CEE_LDLEN);
6725 mono_mb_emit_icon (mb, esize);
6726 mono_mb_emit_byte (mb, CEE_MUL);
6727 mono_mb_emit_byte (mb, CEE_PREFIX1);
6728 mono_mb_emit_byte (mb, CEE_CPBLK);
6732 /* Emit marshalling loop */
6733 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6734 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6735 mono_mb_emit_stloc (mb, index_var);
6736 label2 = mono_mb_get_label (mb);
6737 mono_mb_emit_ldloc (mb, index_var);
6738 mono_mb_emit_ldloc (mb, conv_arg);
6739 mono_mb_emit_byte (mb, CEE_LDLEN);
6740 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6742 /* Emit marshalling code */
6745 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6748 mono_mb_emit_ldloc (mb, dest_ptr);
6751 mono_mb_emit_ldloc (mb, conv_arg);
6752 mono_mb_emit_ldloc (mb, index_var);
6754 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6756 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6757 mono_mb_emit_byte (mb, stind_op);
6760 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6761 mono_mb_emit_exception_marshal_directive (mb, msg);
6765 mono_mb_emit_add_to_local (mb, index_var, 1);
6766 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6768 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6770 mono_mb_patch_branch (mb, label1);
6771 mono_mb_patch_branch (mb, label3);
6775 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6777 guint32 label1, label2, label3;
6778 int index_var, src, dest, esize;
6779 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6780 gboolean is_string = FALSE;
6782 g_assert (!t->byref);
6784 eklass = klass->element_class;
6786 mono_marshal_load_type_info (eklass);
6788 if (eklass == mono_defaults.string_class) {
6790 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6793 g_assert_not_reached ();
6797 esize = sizeof (gpointer);
6798 else if (eklass == mono_defaults.char_class)
6799 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6801 esize = mono_class_native_size (eklass, NULL);
6803 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6804 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6806 mono_mb_emit_stloc (mb, src);
6807 mono_mb_emit_ldloc (mb, src);
6808 mono_mb_emit_stloc (mb, 3);
6810 /* Check for null */
6811 mono_mb_emit_ldloc (mb, src);
6812 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6814 /* Allocate native array */
6815 mono_mb_emit_icon (mb, esize);
6816 mono_mb_emit_ldloc (mb, src);
6817 mono_mb_emit_byte (mb, CEE_LDLEN);
6819 if (eklass == mono_defaults.string_class) {
6820 /* Make the array bigger for the terminating null */
6821 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6822 mono_mb_emit_byte (mb, CEE_ADD);
6824 mono_mb_emit_byte (mb, CEE_MUL);
6825 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6826 mono_mb_emit_stloc (mb, dest);
6827 mono_mb_emit_ldloc (mb, dest);
6828 mono_mb_emit_stloc (mb, 3);
6830 /* Emit marshalling loop */
6831 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6832 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6833 mono_mb_emit_stloc (mb, index_var);
6834 label2 = mono_mb_get_label (mb);
6835 mono_mb_emit_ldloc (mb, index_var);
6836 mono_mb_emit_ldloc (mb, src);
6837 mono_mb_emit_byte (mb, CEE_LDLEN);
6838 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6840 /* Emit marshalling code */
6843 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6846 mono_mb_emit_ldloc (mb, dest);
6849 mono_mb_emit_ldloc (mb, src);
6850 mono_mb_emit_ldloc (mb, index_var);
6852 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6854 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6855 mono_mb_emit_byte (mb, stind_op);
6858 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6859 mono_mb_emit_exception_marshal_directive (mb, msg);
6863 mono_mb_emit_add_to_local (mb, index_var, 1);
6864 mono_mb_emit_add_to_local (mb, dest, esize);
6866 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6868 mono_mb_patch_branch (mb, label3);
6869 mono_mb_patch_branch (mb, label1);
6873 g_assert_not_reached ();
6880 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6883 return &mono_defaults.int32_class->byval_arg;
6885 switch (spec->native) {
6886 case MONO_NATIVE_I1:
6887 case MONO_NATIVE_U1:
6888 return &mono_defaults.byte_class->byval_arg;
6889 case MONO_NATIVE_VARIANTBOOL:
6890 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6891 return &mono_defaults.int16_class->byval_arg;
6892 case MONO_NATIVE_BOOLEAN:
6893 return &mono_defaults.int32_class->byval_arg;
6895 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6896 return &mono_defaults.int32_class->byval_arg;
6902 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6904 MonoClass* conv_arg_class = mono_defaults.int32_class;
6906 switch (spec->native) {
6907 case MONO_NATIVE_I1:
6908 case MONO_NATIVE_U1:
6909 conv_arg_class = mono_defaults.byte_class;
6910 if (ldop) *ldop = CEE_LDIND_I1;
6912 case MONO_NATIVE_VARIANTBOOL:
6913 conv_arg_class = mono_defaults.int16_class;
6914 if (ldop) *ldop = CEE_LDIND_I2;
6916 case MONO_NATIVE_BOOLEAN:
6919 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6922 return conv_arg_class;
6926 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6927 MonoMarshalSpec *spec,
6928 int conv_arg, MonoType **conv_arg_type,
6929 MarshalAction action)
6933 case MARSHAL_ACTION_CONV_IN:
6935 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6937 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6940 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6941 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6943 *conv_arg_type = &conv_arg_class->this_arg;
6945 *conv_arg_type = &conv_arg_class->byval_arg;
6951 MonoMethodBuilder *mb = m->mb;
6954 case MARSHAL_ACTION_CONV_IN: {
6955 MonoType *local_type;
6957 guint8 ldc_op = CEE_LDC_I4_1;
6959 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6961 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6963 *conv_arg_type = local_type;
6964 conv_arg = mono_mb_add_local (mb, local_type);
6966 mono_mb_emit_ldarg (mb, argnum);
6968 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6969 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6970 mono_mb_emit_byte (mb, ldc_op);
6971 mono_mb_emit_stloc (mb, conv_arg);
6972 mono_mb_patch_branch (mb, label_false);
6977 case MARSHAL_ACTION_CONV_OUT:
6979 int label_false, label_end;
6983 mono_mb_emit_ldarg (mb, argnum);
6984 mono_mb_emit_ldloc (mb, conv_arg);
6986 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6987 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6989 label_end = mono_mb_emit_branch (mb, CEE_BR);
6990 mono_mb_patch_branch (mb, label_false);
6991 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6992 mono_mb_patch_branch (mb, label_end);
6994 mono_mb_emit_byte (mb, CEE_STIND_I1);
6998 case MARSHAL_ACTION_PUSH:
7000 mono_mb_emit_ldloc_addr (mb, conv_arg);
7002 mono_mb_emit_ldloc (mb, conv_arg);
7004 mono_mb_emit_ldarg (mb, argnum);
7007 case MARSHAL_ACTION_CONV_RESULT:
7008 /* maybe we need to make sure that it fits within 8 bits */
7009 mono_mb_emit_stloc (mb, 3);
7012 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7013 MonoClass* conv_arg_class = mono_defaults.int32_class;
7014 guint8 ldop = CEE_LDIND_I4;
7015 int label_null, label_false;
7017 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7018 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7021 *conv_arg_type = &conv_arg_class->this_arg;
7023 *conv_arg_type = &conv_arg_class->byval_arg;
7026 mono_mb_emit_ldarg (mb, argnum);
7030 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7031 mono_mb_emit_ldarg (mb, argnum);
7032 mono_mb_emit_byte (mb, ldop);
7036 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7037 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7038 mono_mb_emit_stloc (mb, conv_arg);
7039 mono_mb_patch_branch (mb, label_false);
7042 mono_mb_patch_branch (mb, label_null);
7046 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7047 guint8 stop = CEE_STIND_I4;
7048 guint8 ldc_op = CEE_LDC_I4_1;
7049 int label_null,label_false, label_end;;
7054 switch (spec->native) {
7055 case MONO_NATIVE_I1:
7056 case MONO_NATIVE_U1:
7057 stop = CEE_STIND_I1;
7059 case MONO_NATIVE_VARIANTBOOL:
7060 stop = CEE_STIND_I2;
7061 ldc_op = CEE_LDC_I4_M1;
7069 mono_mb_emit_ldarg (mb, argnum);
7070 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7072 mono_mb_emit_ldarg (mb, argnum);
7073 mono_mb_emit_ldloc (mb, conv_arg);
7075 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7076 mono_mb_emit_byte (mb, ldc_op);
7077 label_end = mono_mb_emit_branch (mb, CEE_BR);
7079 mono_mb_patch_branch (mb, label_false);
7080 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7081 mono_mb_patch_branch (mb, label_end);
7083 mono_mb_emit_byte (mb, stop);
7084 mono_mb_patch_branch (mb, label_null);
7089 g_assert_not_reached ();
7096 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7097 MonoMarshalSpec *spec, int conv_arg,
7098 MonoType **conv_arg_type, MarshalAction action)
7101 MonoMethodBuilder *mb = m->mb;
7104 case MARSHAL_ACTION_CONV_IN:
7105 /* MS seems to allow this in some cases, ie. bxc #158 */
7107 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7108 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7109 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7114 case MARSHAL_ACTION_PUSH:
7115 mono_mb_emit_ldarg (mb, argnum);
7118 case MARSHAL_ACTION_CONV_RESULT:
7119 /* no conversions necessary */
7120 mono_mb_emit_stloc (mb, 3);
7131 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7132 MonoMarshalSpec *spec, int conv_arg,
7133 MonoType **conv_arg_type, MarshalAction action)
7136 MonoMethodBuilder *mb = m->mb;
7139 case MARSHAL_ACTION_PUSH:
7140 /* fixme: dont know how to marshal that. We cant simply
7141 * convert it to a one byte UTF8 character, because an
7142 * unicode character may need more that one byte in UTF8 */
7143 mono_mb_emit_ldarg (mb, argnum);
7146 case MARSHAL_ACTION_CONV_RESULT:
7147 /* fixme: we need conversions here */
7148 mono_mb_emit_stloc (mb, 3);
7159 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7160 MonoMarshalSpec *spec, int conv_arg,
7161 MonoType **conv_arg_type, MarshalAction action)
7164 MonoMethodBuilder *mb = m->mb;
7167 case MARSHAL_ACTION_PUSH:
7168 mono_mb_emit_ldarg (mb, argnum);
7171 case MARSHAL_ACTION_CONV_RESULT:
7172 /* no conversions necessary */
7173 mono_mb_emit_stloc (mb, 3);
7184 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7185 MonoMarshalSpec *spec, int conv_arg,
7186 MonoType **conv_arg_type, MarshalAction action)
7188 /* Ensure that we have marshalling info for this param */
7189 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7191 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7192 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7194 if (spec && spec->native == MONO_NATIVE_ASANY)
7195 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 case MONO_TYPE_VALUETYPE:
7199 if (t->data.klass == mono_defaults.handleref_class)
7200 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7202 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7203 case MONO_TYPE_STRING:
7204 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7205 case MONO_TYPE_CLASS:
7206 case MONO_TYPE_OBJECT:
7207 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7208 if (spec && spec->native == MONO_NATIVE_STRUCT)
7209 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 #if !defined(DISABLE_COM)
7213 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7214 spec->native == MONO_NATIVE_IDISPATCH ||
7215 spec->native == MONO_NATIVE_INTERFACE))
7216 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7217 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7218 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7219 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7220 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7223 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7224 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7225 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7227 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7228 case MONO_TYPE_ARRAY:
7229 case MONO_TYPE_SZARRAY:
7230 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7231 case MONO_TYPE_BOOLEAN:
7232 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7234 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7235 case MONO_TYPE_CHAR:
7236 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7249 case MONO_TYPE_FNPTR:
7250 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 case MONO_TYPE_GENERICINST:
7252 if (mono_type_generic_inst_is_valuetype (t))
7253 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7255 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7263 * mono_marshal_emit_native_wrapper:
7264 * @image: the image to use for looking up custom marshallers
7265 * @sig: The signature of the native function
7266 * @piinfo: Marshalling information
7267 * @mspecs: Marshalling information
7268 * @aot: whenever the created method will be compiled by the AOT compiler
7269 * @method: if non-NULL, the pinvoke method to call
7270 * @check_exceptions: Whenever to check for pending exceptions after the native call
7271 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7273 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7276 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)
7278 EmitMarshalContext m;
7279 MonoMethodSignature *csig;
7281 MonoExceptionClause *clause;
7282 int i, argnum, *tmp_locals;
7283 int type, param_shift = 0;
7284 static MonoMethodSignature *get_last_error_sig = NULL;
7285 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_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);
7329 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7331 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7332 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7335 if (MONO_TYPE_ISSTRUCT (sig->ret))
7336 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7338 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7339 /* Return type custom marshaling */
7341 * Since we can't determine the return type of the unmanaged function,
7342 * we assume it returns a pointer, and pass that pointer to
7343 * MarshalNativeToManaged.
7345 csig->ret = &mono_defaults.int_class->byval_arg;
7348 /* we first do all conversions */
7349 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7350 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7352 for (i = 0; i < sig->param_count; i ++) {
7353 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7356 // In coop mode need to register blocking state during native call
7357 if (mono_threads_is_coop_enabled ()) {
7358 // Perform an extra, early lookup of the function address, so any exceptions
7359 // potentially resulting from the lookup occur before entering blocking mode.
7360 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7362 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7363 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7366 clause->try_offset = mono_mb_get_label (mb);
7368 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7369 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7370 mono_mb_emit_stloc (mb, coop_gc_var);
7373 /* push all arguments */
7376 mono_mb_emit_byte (mb, CEE_LDARG_0);
7378 for (i = 0; i < sig->param_count; i++) {
7379 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7382 /* call the native method */
7384 mono_mb_emit_byte (mb, CEE_LDARG_0);
7385 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7386 mono_mb_emit_byte (mb, CEE_LDIND_I);
7387 mono_mb_emit_calli (mb, csig);
7388 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7390 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7392 g_assert_not_reached ();
7397 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7398 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7399 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7400 mono_mb_emit_calli (mb, csig);
7402 mono_mb_emit_native_call (mb, csig, func);
7406 /* Set LastError if needed */
7407 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7408 if (!get_last_error_sig) {
7409 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7410 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7411 get_last_error_sig->pinvoke = 1;
7416 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7417 * clobber its value.
7419 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7420 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7422 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7426 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7427 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7428 mono_class_init (klass);
7429 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7430 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7431 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7432 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7433 mono_mb_emit_stloc (mb, m.vtaddr_var);
7437 /* Unblock before converting the result, since that can involve calls into the runtime */
7438 if (mono_threads_is_coop_enabled ()) {
7439 mono_mb_emit_ldloc (mb, coop_gc_var);
7440 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7441 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7442 mono_mb_emit_icon (mb, 1);
7443 mono_mb_emit_stloc (mb, coop_unblocked_var);
7446 /* convert the result */
7447 if (!sig->ret->byref) {
7448 MonoMarshalSpec *spec = mspecs [0];
7449 type = sig->ret->type;
7451 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7452 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7456 case MONO_TYPE_VOID:
7458 case MONO_TYPE_VALUETYPE:
7459 klass = sig->ret->data.klass;
7460 if (klass->enumtype) {
7461 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7464 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7478 case MONO_TYPE_FNPTR:
7479 case MONO_TYPE_STRING:
7480 case MONO_TYPE_CLASS:
7481 case MONO_TYPE_OBJECT:
7482 case MONO_TYPE_BOOLEAN:
7483 case MONO_TYPE_ARRAY:
7484 case MONO_TYPE_SZARRAY:
7485 case MONO_TYPE_CHAR:
7487 case MONO_TYPE_GENERICINST:
7488 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7490 case MONO_TYPE_TYPEDBYREF:
7492 g_warning ("return type 0x%02x unknown", sig->ret->type);
7493 g_assert_not_reached ();
7497 mono_mb_emit_stloc (mb, 3);
7500 if (mono_threads_is_coop_enabled ()) {
7503 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7505 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7506 clause->handler_offset = mono_mb_get_label (mb);
7508 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7509 mono_mb_emit_icon (mb, 1);
7510 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7512 mono_mb_emit_ldloc (mb, coop_gc_var);
7513 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7514 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7516 mono_mb_patch_branch (mb, pos);
7518 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7520 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7522 mono_mb_patch_branch (mb, leave_pos);
7526 * Need to call this after converting the result since MONO_VTADDR needs
7527 * to be adjacent to the call instruction.
7529 if (check_exceptions)
7530 emit_thread_interrupt_checkpoint (mb);
7532 /* we need to convert byref arguments back and free string arrays */
7533 for (i = 0; i < sig->param_count; i++) {
7534 MonoType *t = sig->params [i];
7535 MonoMarshalSpec *spec = mspecs [i + 1];
7537 argnum = i + param_shift;
7539 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7540 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7545 case MONO_TYPE_STRING:
7546 case MONO_TYPE_VALUETYPE:
7547 case MONO_TYPE_CLASS:
7548 case MONO_TYPE_OBJECT:
7549 case MONO_TYPE_SZARRAY:
7550 case MONO_TYPE_BOOLEAN:
7551 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7558 if (!MONO_TYPE_IS_VOID(sig->ret))
7559 mono_mb_emit_ldloc (mb, 3);
7561 mono_mb_emit_byte (mb, CEE_RET);
7563 if (mono_threads_is_coop_enabled ()) {
7564 mono_mb_set_clauses (mb, 1, clause);
7567 #endif /* DISABLE_JIT */
7570 * mono_marshal_get_native_wrapper:
7571 * @method: The MonoMethod to wrap.
7572 * @check_exceptions: Whenever to check for pending exceptions
7574 * generates IL code for the pinvoke wrapper (the generated method
7575 * calls the unmanaged code in piinfo->addr)
7576 * The wrapper info for the wrapper is a WrapperInfo structure.
7579 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7581 MonoMethodSignature *sig, *csig;
7582 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7583 MonoMethodBuilder *mb;
7584 MonoMarshalSpec **mspecs;
7587 gboolean pinvoke = FALSE;
7590 const char *exc_class = "MissingMethodException";
7591 const char *exc_arg = NULL;
7594 g_assert (method != NULL);
7595 g_assert (mono_method_signature (method)->pinvoke);
7597 GHashTable **cache_ptr;
7600 if (check_exceptions)
7601 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7603 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7605 if (check_exceptions)
7606 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7608 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7611 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7613 if ((res = mono_marshal_find_in_cache (cache, method)))
7616 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7617 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7621 return mono_cominterop_get_native_wrapper (method);
7623 g_assert_not_reached ();
7627 sig = mono_method_signature (method);
7629 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7630 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7633 if (!piinfo->addr) {
7635 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7636 exc_arg = "Method contains unsupported native code";
7638 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7640 piinfo->addr = mono_lookup_internal_call (method);
7644 /* hack - redirect certain string constructors to CreateString */
7645 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7646 g_assert (!pinvoke);
7647 g_assert (method->string_ctor);
7648 g_assert (sig->hasthis);
7650 /* CreateString returns a value */
7651 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7652 csig->ret = &mono_defaults.string_class->byval_arg;
7656 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7657 if (!strcmp ("CreateString", res->name) &&
7658 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7661 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7662 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7664 /* create a wrapper to preserve .ctor in stack trace */
7665 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7668 mono_mb_emit_byte (mb, CEE_LDARG_0);
7669 for (i = 1; i <= csig->param_count; i++)
7670 mono_mb_emit_ldarg (mb, i);
7671 mono_mb_emit_managed_call (mb, res, NULL);
7672 mono_mb_emit_byte (mb, CEE_RET);
7675 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7676 info->d.string_ctor.method = method;
7678 /* use native_wrapper_cache because internal calls are looked up there */
7679 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7680 csig->param_count + 1, info, NULL);
7687 /* exception will be thrown */
7688 piinfo->addr = NULL;
7689 g_warning ("cannot find CreateString for .ctor");
7692 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7694 mb->method->save_lmf = 1;
7697 * In AOT mode and embedding scenarios, it is possible that the icall is not
7698 * registered in the runtime doing the AOT compilation.
7700 if (!piinfo->addr && !aot) {
7702 mono_mb_emit_exception (mb, exc_class, exc_arg);
7704 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7705 info->d.managed_to_native.method = method;
7707 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7709 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7710 csig->param_count + 16, info, NULL);
7716 /* internal calls: we simply push all arguments and call the method (no conversions) */
7717 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7719 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7721 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7723 /* hack - string constructors returns a value */
7724 if (method->string_ctor)
7725 csig->ret = &mono_defaults.string_class->byval_arg;
7732 * Add a null check since public icalls can be called with 'call' which
7733 * does no such check.
7735 mono_mb_emit_byte (mb, CEE_LDARG_0);
7736 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7737 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7738 mono_mb_patch_branch (mb, pos);
7740 mono_mb_emit_byte (mb, CEE_LDARG_0);
7743 for (i = 0; i < sig->param_count; i++)
7744 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7747 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7748 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7749 mono_mb_emit_calli (mb, csig);
7751 g_assert (piinfo->addr);
7752 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7754 if (check_exceptions)
7755 emit_thread_interrupt_checkpoint (mb);
7756 mono_mb_emit_byte (mb, CEE_RET);
7758 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7759 info->d.managed_to_native.method = method;
7761 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7763 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7772 g_assert (piinfo->addr);
7775 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7776 mono_method_get_marshal_info (method, mspecs);
7778 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7780 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7781 info->d.managed_to_native.method = method;
7783 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7785 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7790 for (i = sig->param_count; i >= 0; i--)
7792 mono_metadata_free_marshal_spec (mspecs [i]);
7796 /* mono_method_print_code (res); */
7802 * mono_marshal_get_native_func_wrapper:
7803 * @image: The image to use for memory allocation and for looking up custom marshallers.
7804 * @sig: The signature of the function
7805 * @func: The native function to wrap
7807 * Returns a wrapper method around native functions, similar to the pinvoke
7811 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7812 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7814 MonoMethodSignature *csig;
7816 SignaturePointerPair key, *new_key;
7817 MonoMethodBuilder *mb;
7826 // Generic types are not safe to place in MonoImage caches.
7827 g_assert (!sig->is_inflated);
7829 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7830 if ((res = mono_marshal_find_in_cache (cache, &key)))
7833 name = g_strdup_printf ("wrapper_native_%p", func);
7834 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7835 mb->method->save_lmf = 1;
7838 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7841 csig = mono_metadata_signature_dup_full (image, sig);
7844 new_key = g_new (SignaturePointerPair,1);
7845 new_key->sig = csig;
7846 new_key->pointer = func;
7848 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7854 mono_marshal_set_wrapper_info (res, NULL);
7860 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7864 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7866 MonoMethodSignature *sig, *csig;
7867 MonoMethodBuilder *mb;
7872 MonoMethodPInvoke mpiinfo;
7873 MonoMethodPInvoke *piinfo = &mpiinfo;
7874 MonoMarshalSpec **mspecs;
7875 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7876 MonoImage *image = invoke->klass->image;
7879 // FIXME: include UnmanagedFunctionPointerAttribute info
7882 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7884 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7886 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7889 memset (&mpiinfo, 0, sizeof (mpiinfo));
7890 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7892 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7893 mono_method_get_marshal_info (invoke, mspecs);
7894 /* Freed below so don't alloc from mempool */
7895 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7898 name = g_strdup_printf ("wrapper_aot_native");
7899 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7900 mb->method->save_lmf = 1;
7903 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7906 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7907 info->d.managed_to_native.method = invoke;
7909 g_assert (!sig->hasthis);
7910 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7912 res = mono_mb_create_and_cache_full (cache, invoke,
7913 mb, csig, csig->param_count + 16,
7917 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7919 mono_metadata_free_marshal_spec (mspecs [i]);
7927 * mono_marshal_emit_managed_wrapper:
7929 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7930 * the delegate which wraps the managed method to be called. For closed delegates,
7931 * it could have fewer parameters than the method it wraps.
7932 * THIS_LOC is the memory location where the target of the delegate is stored.
7935 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7938 MonoMethodSignature *sig, *csig;
7944 /* we first do all conversions */
7945 for (i = 0; i < sig->param_count; i ++) {
7946 MonoType *t = sig->params [i];
7949 case MONO_TYPE_OBJECT:
7950 case MONO_TYPE_CLASS:
7951 case MONO_TYPE_VALUETYPE:
7952 case MONO_TYPE_ARRAY:
7953 case MONO_TYPE_SZARRAY:
7954 case MONO_TYPE_STRING:
7955 case MONO_TYPE_BOOLEAN:
7956 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7960 if (!sig->ret->byref) {
7961 switch (sig->ret->type) {
7962 case MONO_TYPE_STRING:
7963 csig->ret = &mono_defaults.int_class->byval_arg;
7970 MonoMethodSignature *sig, *csig;
7971 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7972 int i, *tmp_locals, ex_local, e_local;
7973 int leave_try_pos, leave_catch_pos, ex_m1_pos, rethrow_pos;
7974 gboolean closed = FALSE;
7979 /* allocate local 0 (pointer) src_ptr */
7980 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7981 /* allocate local 1 (pointer) dst_ptr */
7982 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7983 /* allocate local 2 (boolean) delete_old */
7984 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7986 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7987 /* Closed delegate */
7988 g_assert (sig->param_count == invoke_sig->param_count + 1);
7990 /* Use a new signature without the first argument */
7991 sig = mono_metadata_signature_dup (sig);
7992 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7993 sig->param_count --;
7996 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7997 /* allocate local 3 to store the return value */
7998 mono_mb_add_local (mb, sig->ret);
8001 if (MONO_TYPE_ISSTRUCT (sig->ret))
8002 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8004 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8005 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8010 * mono_jit_attach ();
8014 * ret = method (...);
8015 * } catch (Exception e) {
8016 * if (!mono_marshal_has_ftnptr_eh_callback ())
8018 * ex = mono_gchandle_new (e, false);
8020 * mono_jit_detach ();
8023 * mono_marshal_ftnptr_eh_callback (ex);
8028 clauses = g_new0 (MonoExceptionClause, 2);
8030 clause_catch = &clauses [0];
8031 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8032 clause_catch->data.catch_class = mono_defaults.exception_class;
8034 clause_finally = &clauses [1];
8035 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8037 mono_mb_emit_icon (mb, 0);
8038 mono_mb_emit_stloc (mb, 2);
8040 mono_mb_emit_icon (mb, -1);
8041 mono_mb_emit_byte (mb, CEE_CONV_U4);
8042 mono_mb_emit_stloc (mb, ex_local);
8045 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8048 * Might need to attach the thread to the JIT or change the
8049 * domain for the callback.
8051 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8053 * mono_jit_attach ();
8055 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8056 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8058 /* <interrupt check> */
8059 emit_thread_interrupt_checkpoint (mb);
8061 /* we first do all conversions */
8062 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8063 for (i = 0; i < sig->param_count; i ++) {
8064 MonoType *t = sig->params [i];
8067 case MONO_TYPE_OBJECT:
8068 case MONO_TYPE_CLASS:
8069 case MONO_TYPE_VALUETYPE:
8070 case MONO_TYPE_ARRAY:
8071 case MONO_TYPE_SZARRAY:
8072 case MONO_TYPE_STRING:
8073 case MONO_TYPE_BOOLEAN:
8074 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8084 if (target_handle) {
8085 mono_mb_emit_icon (mb, (gint32)target_handle);
8086 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8089 g_assert_not_reached ();
8091 } else if (closed) {
8092 mono_mb_emit_icon (mb, (gint32)target_handle);
8093 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8096 for (i = 0; i < sig->param_count; i++) {
8097 MonoType *t = sig->params [i];
8099 if (tmp_locals [i]) {
8101 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8103 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8106 mono_mb_emit_ldarg (mb, i);
8109 /* ret = method (...) */
8110 mono_mb_emit_managed_call (mb, method, NULL);
8112 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8113 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8114 mono_class_init (klass);
8115 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8116 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8117 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8118 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8119 mono_mb_emit_stloc (mb, m->vtaddr_var);
8123 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8124 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8125 } else if (!sig->ret->byref) {
8126 switch (sig->ret->type) {
8127 case MONO_TYPE_VOID:
8129 case MONO_TYPE_BOOLEAN:
8132 case MONO_TYPE_CHAR:
8144 case MONO_TYPE_OBJECT:
8145 mono_mb_emit_stloc (mb, 3);
8147 case MONO_TYPE_STRING:
8148 csig->ret = &mono_defaults.int_class->byval_arg;
8149 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8151 case MONO_TYPE_VALUETYPE:
8152 case MONO_TYPE_CLASS:
8153 case MONO_TYPE_SZARRAY:
8154 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8157 g_warning ("return type 0x%02x unknown", sig->ret->type);
8158 g_assert_not_reached ();
8161 mono_mb_emit_stloc (mb, 3);
8164 /* Convert byref arguments back */
8165 for (i = 0; i < sig->param_count; i ++) {
8166 MonoType *t = sig->params [i];
8167 MonoMarshalSpec *spec = mspecs [i + 1];
8169 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8170 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8172 else if (t->byref) {
8174 case MONO_TYPE_CLASS:
8175 case MONO_TYPE_VALUETYPE:
8176 case MONO_TYPE_OBJECT:
8177 case MONO_TYPE_STRING:
8178 case MONO_TYPE_BOOLEAN:
8179 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8185 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8186 /* The [Out] information is encoded in the delegate signature */
8188 case MONO_TYPE_SZARRAY:
8189 case MONO_TYPE_CLASS:
8190 case MONO_TYPE_VALUETYPE:
8191 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8194 g_assert_not_reached ();
8199 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8201 /* } catch (Exception e) { */
8202 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8203 clause_catch->handler_offset = mono_mb_get_label (mb);
8205 mono_mb_emit_stloc (mb, e_local);
8207 /* if (!mono_marshal_has_ftnptr_eh_callback ()) { */
8208 mono_mb_emit_icall (mb, mono_marshal_has_ftnptr_eh_callback);
8209 rethrow_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8212 mono_mb_emit_ldloc (mb, e_local);
8213 mono_mb_emit_byte (mb, CEE_THROW);
8216 mono_mb_patch_branch (mb, rethrow_pos);
8218 /* ex = mono_gchandle_new (e, false); */
8219 mono_mb_emit_ldloc (mb, e_local);
8220 mono_mb_emit_icon (mb, 0);
8221 mono_mb_emit_icall (mb, mono_gchandle_new);
8222 mono_mb_emit_stloc (mb, ex_local);
8224 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8227 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8230 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8231 clause_finally->handler_offset = mono_mb_get_label (mb);
8234 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8236 * mono_jit_detach ();
8238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8239 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8241 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8243 /* } [endfinally] */
8244 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8246 mono_mb_patch_branch (mb, leave_try_pos);
8247 mono_mb_patch_branch (mb, leave_catch_pos);
8250 mono_mb_emit_ldloc (mb, ex_local);
8251 mono_mb_emit_icon (mb, -1);
8252 mono_mb_emit_byte (mb, CEE_CONV_U4);
8253 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8255 /* mono_marshal_ftnptr_eh_callback (ex) */
8256 mono_mb_emit_ldloc (mb, ex_local);
8257 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8260 mono_mb_patch_branch (mb, ex_m1_pos);
8263 if (m->retobj_var) {
8264 mono_mb_emit_ldloc (mb, m->retobj_var);
8265 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8266 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8269 if (!MONO_TYPE_IS_VOID(sig->ret))
8270 mono_mb_emit_ldloc (mb, 3);
8271 mono_mb_emit_byte (mb, CEE_RET);
8274 mono_mb_set_clauses (mb, 2, clauses);
8282 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8284 MonoMethodSignature *sig;
8289 * Under windows, delegates passed to native code must use the STDCALL
8290 * calling convention.
8292 csig->call_convention = MONO_CALL_STDCALL;
8295 sig = mono_method_signature (method);
8297 /* Change default calling convention if needed */
8298 /* Why is this a modopt ? */
8299 if (sig->ret && sig->ret->num_mods) {
8300 for (i = 0; i < sig->ret->num_mods; ++i) {
8302 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8303 g_assert (mono_error_ok (&error));
8304 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8305 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8306 csig->call_convention = MONO_CALL_C;
8307 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8308 csig->call_convention = MONO_CALL_STDCALL;
8309 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8310 csig->call_convention = MONO_CALL_FASTCALL;
8311 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8312 csig->call_convention = MONO_CALL_THISCALL;
8319 * generates IL code to call managed methods from unmanaged code
8320 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8323 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8326 MonoMethodSignature *sig, *csig, *invoke_sig;
8327 MonoMethodBuilder *mb;
8328 MonoMethod *res, *invoke;
8329 MonoMarshalSpec **mspecs;
8330 MonoMethodPInvoke piinfo;
8333 EmitMarshalContext m;
8335 g_assert (method != NULL);
8336 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8339 * FIXME: Should cache the method+delegate type pair, since the same method
8340 * could be called with different delegates, thus different marshalling
8343 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8345 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8348 invoke = mono_get_delegate_invoke (delegate_klass);
8349 invoke_sig = mono_method_signature (invoke);
8351 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8352 mono_method_get_marshal_info (invoke, mspecs);
8354 sig = mono_method_signature (method);
8356 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8358 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8359 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8361 /* we copy the signature, so that we can modify it */
8363 /* Need to free this later */
8364 csig = mono_metadata_signature_dup (invoke_sig);
8366 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8370 memset (&m, 0, sizeof (m));
8376 m.image = method->klass->image;
8378 mono_marshal_set_callconv_from_modopt (invoke, csig);
8380 /* The attribute is only available in Net 2.0 */
8381 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8382 MonoCustomAttrInfo *cinfo;
8383 MonoCustomAttrEntry *attr;
8386 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8387 * contents of the attribute without constructing it, as that might not be
8388 * possible when running in cross-compiling mode.
8390 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8391 mono_error_assert_ok (&error);
8394 for (i = 0; i < cinfo->num_attrs; ++i) {
8395 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8396 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8397 attr = &cinfo->attrs [i];
8403 MonoArray *typed_args, *named_args;
8404 CattrNamedArg *arginfo;
8408 MonoBoolean set_last_error = 0;
8411 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8412 g_assert (mono_error_ok (&error));
8413 g_assert (mono_array_length (typed_args) == 1);
8416 o = mono_array_get (typed_args, MonoObject*, 0);
8417 call_conv = *(gint32*)mono_object_unbox (o);
8420 for (i = 0; i < mono_array_length (named_args); ++i) {
8421 CattrNamedArg *narg = &arginfo [i];
8423 o = mono_array_get (named_args, MonoObject*, i);
8425 g_assert (narg->field);
8426 if (!strcmp (narg->field->name, "CharSet")) {
8427 charset = *(gint32*)mono_object_unbox (o);
8428 } else if (!strcmp (narg->field->name, "SetLastError")) {
8429 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8430 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8431 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8432 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8433 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8435 g_assert_not_reached ();
8441 memset (&piinfo, 0, sizeof (piinfo));
8443 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8445 csig->call_convention = call_conv - 1;
8448 if (cinfo && !cinfo->cached)
8449 mono_custom_attrs_free (cinfo);
8452 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8454 if (!target_handle) {
8457 // FIXME: Associate it with the method+delegate_klass pair
8458 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8459 info->d.native_to_managed.method = method;
8460 info->d.native_to_managed.klass = delegate_klass;
8462 res = mono_mb_create_and_cache_full (cache, method,
8463 mb, csig, sig->param_count + 16,
8469 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8473 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8475 mono_metadata_free_marshal_spec (mspecs [i]);
8478 /* mono_method_print_code (res); */
8484 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8488 MonoMethodSignature *sig;
8489 MonoMethodBuilder *mb;
8494 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8496 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8499 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8500 MonoMethodSignature *csig;
8501 MonoMarshalSpec **mspecs;
8502 EmitMarshalContext m;
8504 sig = mono_method_signature (method);
8505 g_assert (!sig->hasthis);
8507 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8508 mono_method_get_marshal_info (method, mspecs);
8510 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8511 csig = mono_metadata_signature_dup_full (image, sig);
8515 memset (&m, 0, sizeof (m));
8523 mono_marshal_set_callconv_from_modopt (method, csig);
8525 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8527 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8532 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8535 for (i = sig->param_count; i >= 0; i--)
8537 mono_metadata_free_marshal_spec (mspecs [i]);
8540 return mono_compile_method (method);
8543 sig = mono_method_signature (method);
8544 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8546 param_count = sig->param_count + sig->hasthis;
8548 for (i = 0; i < param_count; i++)
8549 mono_mb_emit_ldarg (mb, i);
8551 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8552 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8554 mono_mb_emit_op (mb, CEE_CALL, method);
8555 mono_mb_emit_byte (mb, CEE_RET);
8560 method = mono_mb_create (mb, sig, param_count, NULL);
8563 return mono_compile_method (method);
8569 * The code directly following this is the cache hit, value positive branch
8571 * This function takes a new method builder with 0 locals and adds two locals
8572 * to create multiple out-branches and the fall through state of having the object
8573 * on the stack after a cache miss
8576 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8577 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8578 MonoMethodBuilder *mb)
8582 /* allocate local 0 (pointer) obj_vtable */
8583 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8584 /* allocate local 1 (pointer) cached_vtable */
8585 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8588 mono_mb_emit_ldarg (mb, obj_arg_position);
8589 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8591 /*obj_vtable = obj->vtable;*/
8592 mono_mb_emit_ldarg (mb, obj_arg_position);
8593 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8594 mono_mb_emit_byte (mb, CEE_LDIND_I);
8595 mono_mb_emit_stloc (mb, 0);
8597 /* cached_vtable = *cache*/
8598 mono_mb_emit_ldarg (mb, cache_arg_position);
8599 mono_mb_emit_byte (mb, CEE_LDIND_I);
8600 mono_mb_emit_stloc (mb, 1);
8602 mono_mb_emit_ldloc (mb, 1);
8603 mono_mb_emit_byte (mb, CEE_LDC_I4);
8604 mono_mb_emit_i4 (mb, ~0x1);
8605 mono_mb_emit_byte (mb, CEE_CONV_I);
8606 mono_mb_emit_byte (mb, CEE_AND);
8607 mono_mb_emit_ldloc (mb, 0);
8608 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8609 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8611 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8612 mono_mb_emit_ldloc (mb, 1);
8613 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8614 mono_mb_emit_byte (mb, CEE_CONV_U);
8615 mono_mb_emit_byte (mb, CEE_AND);
8616 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8617 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8620 mono_mb_patch_branch (mb, cache_miss_pos);
8623 mono_mb_emit_ldarg (mb, obj_arg_position);
8624 mono_mb_emit_ldarg (mb, class_arg_position);
8625 mono_mb_emit_ldarg (mb, cache_arg_position);
8626 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8629 #endif /* DISABLE_JIT */
8632 * This does the equivalent of mono_object_castclass_with_cache.
8633 * The wrapper info for the wrapper is a WrapperInfo structure.
8636 mono_marshal_get_castclass_with_cache (void)
8638 static MonoMethod *cached;
8640 MonoMethodBuilder *mb;
8641 MonoMethodSignature *sig;
8642 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8645 const int obj_arg_position = 0;
8646 const int class_arg_position = 1;
8647 const int cache_arg_position = 2;
8652 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8653 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8654 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8655 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8656 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8657 sig->ret = &mono_defaults.object_class->byval_arg;
8661 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8662 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8663 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8666 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8667 mono_mb_emit_ldarg (mb, obj_arg_position);
8668 mono_mb_emit_byte (mb, CEE_RET);
8671 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8672 mono_mb_patch_branch (mb, invalid_cast_pos);
8673 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8676 mono_mb_patch_branch (mb, return_null_pos);
8677 mono_mb_emit_byte (mb, CEE_LDNULL);
8678 mono_mb_emit_byte (mb, CEE_RET);
8679 #endif /* DISABLE_JIT */
8681 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8682 res = mono_mb_create (mb, sig, 8, info);
8685 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8686 mono_free_method (res);
8687 mono_metadata_free_method_signature (sig);
8695 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8698 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8699 mono_error_raise_exception (&error); /* FIXME don't raise here */
8701 #ifndef DISABLE_REMOTING
8702 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8706 uintptr_t cache_update = (uintptr_t)obj->vtable;
8708 cache_update = cache_update | 0x1;
8710 *cache = cache_update;
8716 * This does the equivalent of mono_object_isinst_with_cache.
8717 * The wrapper info for the wrapper is a WrapperInfo structure.
8720 mono_marshal_get_isinst_with_cache (void)
8722 static MonoMethod *cached;
8724 MonoMethodBuilder *mb;
8725 MonoMethodSignature *sig;
8726 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8729 const int obj_arg_position = 0;
8730 const int class_arg_position = 1;
8731 const int cache_arg_position = 2;
8736 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8737 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8739 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8741 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8743 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8744 sig->ret = &mono_defaults.object_class->byval_arg;
8748 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8749 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8750 // Return the object gotten via the slow path.
8751 mono_mb_emit_byte (mb, CEE_RET);
8754 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8755 mono_mb_patch_branch (mb, return_null_pos);
8756 mono_mb_emit_byte (mb, CEE_LDNULL);
8757 mono_mb_emit_byte (mb, CEE_RET);
8760 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8761 mono_mb_emit_ldarg (mb, obj_arg_position);
8762 mono_mb_emit_byte (mb, CEE_RET);
8765 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8766 res = mono_mb_create (mb, sig, 8, info);
8769 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8770 mono_free_method (res);
8771 mono_metadata_free_method_signature (sig);
8779 * mono_marshal_get_isinst:
8780 * @klass: the type of the field
8782 * This method generates a function which can be used to check if an object is
8783 * an instance of the given type, icluding the case where the object is a proxy.
8784 * The generated function has the following signature:
8785 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8788 mono_marshal_get_isinst (MonoClass *klass)
8790 static MonoMethodSignature *isint_sig = NULL;
8794 int pos_was_ok, pos_end;
8795 #ifndef DISABLE_REMOTING
8796 int pos_end2, pos_failed;
8799 MonoMethodBuilder *mb;
8801 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8802 if ((res = mono_marshal_find_in_cache (cache, klass)))
8806 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8807 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8808 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8809 isint_sig->pinvoke = 0;
8812 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8813 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8816 mb->method->save_lmf = 1;
8819 /* check if the object is a proxy that needs special cast */
8820 mono_mb_emit_ldarg (mb, 0);
8821 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8822 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8824 /* The result of MONO_CISINST can be:
8825 0) the type check succeeded
8826 1) the type check did not succeed
8827 2) a CanCastTo call is needed */
8828 #ifndef DISABLE_REMOTING
8829 mono_mb_emit_byte (mb, CEE_DUP);
8830 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8832 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8833 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8835 /* get the real proxy from the transparent proxy*/
8837 mono_mb_emit_ldarg (mb, 0);
8838 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8839 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8843 mono_mb_patch_branch (mb, pos_failed);
8844 mono_mb_emit_byte (mb, CEE_LDNULL);
8845 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8849 mono_mb_patch_branch (mb, pos_was_ok);
8850 mono_mb_emit_byte (mb, CEE_POP);
8851 mono_mb_emit_ldarg (mb, 0);
8855 mono_mb_patch_branch (mb, pos_end);
8856 mono_mb_patch_branch (mb, pos_end2);
8857 mono_mb_emit_byte (mb, CEE_RET);
8859 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8863 mono_mb_emit_byte (mb, CEE_LDNULL);
8864 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8868 mono_mb_patch_branch (mb, pos_was_ok);
8869 mono_mb_emit_ldarg (mb, 0);
8873 mono_mb_patch_branch (mb, pos_end);
8874 mono_mb_emit_byte (mb, CEE_RET);
8875 #endif /* DISABLE_REMOTING */
8876 #endif /* DISABLE_JIT */
8878 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8879 info->d.proxy.klass = klass;
8880 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8887 * mono_marshal_get_castclass:
8888 * @klass: the type of the field
8890 * This method generates a function which can be used to cast an object to
8891 * an instance of the given type, icluding the case where the object is a proxy.
8892 * The generated function has the following signature:
8893 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8894 * The wrapper info for the wrapper is a WrapperInfo structure.
8897 mono_marshal_get_castclass (MonoClass *klass)
8899 static MonoMethodSignature *castclass_sig = NULL;
8902 #ifndef DISABLE_REMOTING
8903 int pos_was_ok, pos_was_ok2;
8906 MonoMethodBuilder *mb;
8909 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8910 if ((res = mono_marshal_find_in_cache (cache, klass)))
8913 if (!castclass_sig) {
8914 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8915 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8916 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8917 castclass_sig->pinvoke = 0;
8920 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8921 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8924 mb->method->save_lmf = 1;
8927 /* check if the object is a proxy that needs special cast */
8928 mono_mb_emit_ldarg (mb, 0);
8929 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8930 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8932 /* The result of MONO_CCASTCLASS can be:
8933 0) the cast is valid
8934 1) cast of unknown proxy type
8935 or an exception if the cast is is invalid
8937 #ifndef DISABLE_REMOTING
8938 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8940 /* get the real proxy from the transparent proxy*/
8942 mono_mb_emit_ldarg (mb, 0);
8943 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8944 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8947 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8950 mono_mb_patch_branch (mb, pos_was_ok);
8951 mono_mb_patch_branch (mb, pos_was_ok2);
8953 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8954 mono_mb_emit_byte (mb, CEE_POP);
8955 #endif /* DISABLE_REMOTING */
8957 mono_mb_emit_ldarg (mb, 0);
8960 mono_mb_emit_byte (mb, CEE_RET);
8961 #endif /* DISABLE_JIT */
8963 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8965 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8973 * mono_marshal_get_struct_to_ptr:
8976 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8977 * The wrapper info for the wrapper is a WrapperInfo structure.
8980 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8982 MonoMethodBuilder *mb;
8983 static MonoMethod *stoptr = NULL;
8987 g_assert (klass != NULL);
8989 mono_marshal_load_type_info (klass);
8991 if (klass->marshal_info->str_to_ptr)
8992 return klass->marshal_info->str_to_ptr;
8995 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8998 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9001 if (klass->blittable) {
9002 mono_mb_emit_byte (mb, CEE_LDARG_1);
9003 mono_mb_emit_byte (mb, CEE_LDARG_0);
9004 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9005 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9006 mono_mb_emit_byte (mb, CEE_PREFIX1);
9007 mono_mb_emit_byte (mb, CEE_CPBLK);
9010 /* allocate local 0 (pointer) src_ptr */
9011 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9012 /* allocate local 1 (pointer) dst_ptr */
9013 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9014 /* allocate local 2 (boolean) delete_old */
9015 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9016 mono_mb_emit_byte (mb, CEE_LDARG_2);
9017 mono_mb_emit_stloc (mb, 2);
9019 /* initialize src_ptr to point to the start of object data */
9020 mono_mb_emit_byte (mb, CEE_LDARG_0);
9021 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9022 mono_mb_emit_stloc (mb, 0);
9024 /* initialize dst_ptr */
9025 mono_mb_emit_byte (mb, CEE_LDARG_1);
9026 mono_mb_emit_stloc (mb, 1);
9028 emit_struct_conv (mb, klass, FALSE);
9031 mono_mb_emit_byte (mb, CEE_RET);
9033 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9034 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9037 mono_marshal_lock ();
9038 if (!klass->marshal_info->str_to_ptr)
9039 klass->marshal_info->str_to_ptr = res;
9041 res = klass->marshal_info->str_to_ptr;
9042 mono_marshal_unlock ();
9047 * mono_marshal_get_ptr_to_struct:
9050 * generates IL code for PtrToStructure (IntPtr src, object structure)
9051 * The wrapper info for the wrapper is a WrapperInfo structure.
9054 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9056 MonoMethodBuilder *mb;
9057 static MonoMethodSignature *ptostr = NULL;
9061 g_assert (klass != NULL);
9063 mono_marshal_load_type_info (klass);
9065 if (klass->marshal_info->ptr_to_str)
9066 return klass->marshal_info->ptr_to_str;
9069 MonoMethodSignature *sig;
9071 /* Create the signature corresponding to
9072 static void PtrToStructure (IntPtr ptr, object structure);
9073 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9074 sig = mono_create_icall_signature ("void ptr object");
9075 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9077 mono_memory_barrier ();
9081 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9084 if (klass->blittable) {
9085 mono_mb_emit_byte (mb, CEE_LDARG_1);
9086 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9087 mono_mb_emit_byte (mb, CEE_LDARG_0);
9088 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9089 mono_mb_emit_byte (mb, CEE_PREFIX1);
9090 mono_mb_emit_byte (mb, CEE_CPBLK);
9093 /* allocate local 0 (pointer) src_ptr */
9094 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9095 /* allocate local 1 (pointer) dst_ptr */
9096 mono_mb_add_local (mb, &klass->this_arg);
9098 /* initialize src_ptr to point to the start of object data */
9099 mono_mb_emit_byte (mb, CEE_LDARG_0);
9100 mono_mb_emit_stloc (mb, 0);
9102 /* initialize dst_ptr */
9103 mono_mb_emit_byte (mb, CEE_LDARG_1);
9104 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9105 mono_mb_emit_stloc (mb, 1);
9107 emit_struct_conv (mb, klass, TRUE);
9110 mono_mb_emit_byte (mb, CEE_RET);
9112 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9113 res = mono_mb_create (mb, ptostr, 0, info);
9116 mono_marshal_lock ();
9117 if (!klass->marshal_info->ptr_to_str)
9118 klass->marshal_info->ptr_to_str = res;
9120 res = klass->marshal_info->ptr_to_str;
9121 mono_marshal_unlock ();
9126 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9127 * This is used to avoid infinite recursion since it is hard to determine where to
9128 * replace a method with its synchronized wrapper, and where not.
9129 * The runtime should execute METHOD instead of the wrapper.
9130 * The wrapper info for the wrapper is a WrapperInfo structure.
9133 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9135 MonoMethodBuilder *mb;
9137 MonoMethodSignature *sig;
9139 MonoGenericContext *ctx = NULL;
9140 MonoGenericContainer *container = NULL;
9142 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9143 ctx = &((MonoMethodInflated*)method)->context;
9144 method = ((MonoMethodInflated*)method)->declaring;
9145 container = mono_method_get_generic_container (method);
9147 container = method->klass->generic_container;
9148 g_assert (container);
9151 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9153 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9154 mono_mb_emit_byte (mb, CEE_RET);
9156 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9158 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9159 info->d.synchronized_inner.method = method;
9160 res = mono_mb_create (mb, sig, 0, info);
9164 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9165 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9171 * generates IL code for the synchronized wrapper: the generated method
9172 * calls METHOD while locking 'this' or the parent type.
9175 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9177 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9178 MonoMethodSignature *sig;
9179 MonoExceptionClause *clause;
9180 MonoMethodBuilder *mb;
9184 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9185 MonoGenericContext *ctx = NULL;
9186 MonoMethod *orig_method = NULL;
9187 MonoGenericContainer *container = NULL;
9191 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9194 /* FIXME: Support generic methods too */
9195 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9196 orig_method = method;
9197 ctx = &((MonoMethodInflated*)method)->context;
9198 method = ((MonoMethodInflated*)method)->declaring;
9199 container = mono_method_get_generic_container (method);
9201 container = method->klass->generic_container;
9202 g_assert (container);
9209 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9210 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9214 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9215 if ((res = mono_marshal_find_in_cache (cache, method)))
9219 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9222 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9224 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9225 info->d.synchronized.method = method;
9228 mb->skip_visibility = 1;
9230 if (!MONO_TYPE_IS_VOID (sig->ret))
9231 ret_local = mono_mb_add_local (mb, sig->ret);
9234 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9235 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9237 /* This will throw the type load exception when the wrapper is compiled */
9238 mono_mb_emit_byte (mb, CEE_LDNULL);
9239 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9240 mono_mb_emit_byte (mb, CEE_POP);
9242 if (!MONO_TYPE_IS_VOID (sig->ret))
9243 mono_mb_emit_ldloc (mb, ret_local);
9244 mono_mb_emit_byte (mb, CEE_RET);
9247 res = mono_mb_create_and_cache_full (cache, method,
9248 mb, sig, sig->param_count + 16, info, NULL);
9256 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9257 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9259 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9260 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9263 mono_marshal_lock ();
9265 if (!enter_method) {
9266 MonoMethodDesc *desc;
9268 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9269 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9270 g_assert (enter_method);
9271 mono_method_desc_free (desc);
9273 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9274 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9275 g_assert (exit_method);
9276 mono_method_desc_free (desc);
9278 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9279 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9280 g_assert (gettypefromhandle_method);
9281 mono_method_desc_free (desc);
9284 mono_marshal_unlock ();
9287 /* Push this or the type object */
9288 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9289 /* We have special handling for this in the JIT */
9290 int index = mono_mb_add_data (mb, method->klass);
9291 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9292 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9293 mono_mb_emit_i4 (mb, index);
9295 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9298 mono_mb_emit_ldarg (mb, 0);
9299 mono_mb_emit_stloc (mb, this_local);
9301 /* Call Monitor::Enter() */
9302 mono_mb_emit_ldloc (mb, this_local);
9303 mono_mb_emit_ldloc_addr (mb, taken_local);
9304 mono_mb_emit_managed_call (mb, enter_method, NULL);
9306 clause->try_offset = mono_mb_get_label (mb);
9308 /* Call the method */
9310 mono_mb_emit_ldarg (mb, 0);
9311 for (i = 0; i < sig->param_count; i++)
9312 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9316 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9317 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9319 mono_mb_emit_managed_call (mb, method, NULL);
9322 if (!MONO_TYPE_IS_VOID (sig->ret))
9323 mono_mb_emit_stloc (mb, ret_local);
9325 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9327 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9328 clause->handler_offset = mono_mb_get_label (mb);
9330 /* Call Monitor::Exit() if needed */
9331 mono_mb_emit_ldloc (mb, taken_local);
9332 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9333 mono_mb_emit_ldloc (mb, this_local);
9334 mono_mb_emit_managed_call (mb, exit_method, NULL);
9335 mono_mb_patch_branch (mb, pos2);
9336 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9338 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9340 mono_mb_patch_branch (mb, pos);
9341 if (!MONO_TYPE_IS_VOID (sig->ret))
9342 mono_mb_emit_ldloc (mb, ret_local);
9343 mono_mb_emit_byte (mb, CEE_RET);
9345 mono_mb_set_clauses (mb, 1, clause);
9350 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9351 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9353 res = mono_mb_create_and_cache_full (cache, method,
9354 mb, sig, sig->param_count + 16, info, NULL);
9363 * the returned method calls 'method' unboxing the this argument
9366 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9368 MonoMethodSignature *sig = mono_method_signature (method);
9370 MonoMethodBuilder *mb;
9375 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9377 if ((res = mono_marshal_find_in_cache (cache, method)))
9380 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9382 g_assert (sig->hasthis);
9385 mono_mb_emit_ldarg (mb, 0);
9386 mono_mb_emit_icon (mb, sizeof (MonoObject));
9387 mono_mb_emit_byte (mb, CEE_ADD);
9388 for (i = 0; i < sig->param_count; ++i)
9389 mono_mb_emit_ldarg (mb, i + 1);
9390 mono_mb_emit_managed_call (mb, method, NULL);
9391 mono_mb_emit_byte (mb, CEE_RET);
9394 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9395 info->d.unbox.method = method;
9397 res = mono_mb_create_and_cache_full (cache, method,
9398 mb, sig, sig->param_count + 16, info, NULL);
9401 /* mono_method_print_code (res); */
9407 STELEMREF_OBJECT, /*no check at all*/
9408 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9409 STELEMREF_CLASS, /*only the klass->parents check*/
9410 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9411 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9412 STELEMREF_KIND_COUNT
9415 static const char *strelemref_wrapper_name[] = {
9416 "object", "sealed_class", "class", "interface", "complex"
9420 is_monomorphic_array (MonoClass *klass)
9422 MonoClass *element_class;
9423 if (klass->rank != 1)
9426 element_class = klass->element_class;
9427 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9431 get_virtual_stelemref_kind (MonoClass *element_class)
9433 if (element_class == mono_defaults.object_class)
9434 return STELEMREF_OBJECT;
9435 if (is_monomorphic_array (element_class))
9436 return STELEMREF_SEALED_CLASS;
9437 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9438 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9439 #ifdef COMPRESSED_INTERFACE_BITMAP
9440 return STELEMREF_COMPLEX;
9442 return STELEMREF_INTERFACE;
9444 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9445 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9446 return STELEMREF_COMPLEX;
9447 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9448 return STELEMREF_SEALED_CLASS;
9449 return STELEMREF_CLASS;
9455 load_array_element_address (MonoMethodBuilder *mb)
9457 mono_mb_emit_ldarg (mb, 0);
9458 mono_mb_emit_ldarg (mb, 1);
9459 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9463 load_array_class (MonoMethodBuilder *mb, int aklass)
9465 mono_mb_emit_ldarg (mb, 0);
9466 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9467 mono_mb_emit_byte (mb, CEE_LDIND_I);
9468 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9469 mono_mb_emit_byte (mb, CEE_LDIND_I);
9470 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9471 mono_mb_emit_byte (mb, CEE_LDIND_I);
9472 mono_mb_emit_stloc (mb, aklass);
9476 load_value_class (MonoMethodBuilder *mb, int vklass)
9478 mono_mb_emit_ldarg (mb, 2);
9479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9480 mono_mb_emit_byte (mb, CEE_LDIND_I);
9481 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9482 mono_mb_emit_byte (mb, CEE_LDIND_I);
9483 mono_mb_emit_stloc (mb, vklass);
9489 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9491 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9492 printf ("slow vstore of %s\n", name);
9498 * The wrapper info for the wrapper is a WrapperInfo structure.
9501 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9502 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9503 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9504 * - Add a case for arrays of arrays.
9507 get_virtual_stelemref_wrapper (int kind)
9509 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9510 static MonoMethodSignature *signature;
9511 MonoMethodBuilder *mb;
9514 const char *param_names [16];
9516 int aklass, vklass, vtable, uiid;
9517 int array_slot_addr;
9520 if (cached_methods [kind])
9521 return cached_methods [kind];
9523 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9524 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9528 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9530 /* void this::stelemref (size_t idx, void* value) */
9531 sig->ret = &mono_defaults.void_class->byval_arg;
9532 sig->hasthis = TRUE;
9533 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9534 sig->params [1] = &mono_defaults.object_class->byval_arg;
9539 param_names [0] = "index";
9540 param_names [1] = "value";
9541 mono_mb_set_param_names (mb, param_names);
9543 /*For now simply call plain old stelemref*/
9545 case STELEMREF_OBJECT:
9546 /* ldelema (implicit bound check) */
9547 load_array_element_address (mb);
9549 mono_mb_emit_ldarg (mb, 2);
9550 mono_mb_emit_byte (mb, CEE_STIND_REF);
9551 mono_mb_emit_byte (mb, CEE_RET);
9554 case STELEMREF_COMPLEX:
9556 <ldelema (bound check)>
9559 if (!mono_object_isinst (value, aklass))
9563 *array_slot_addr = value;
9566 throw new ArrayTypeMismatchException ();
9569 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9570 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9574 /*Use this to debug/record stores that are going thru the slow path*/
9575 MonoMethodSignature *csig;
9576 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9577 csig->ret = &mono_defaults.void_class->byval_arg;
9578 csig->params [0] = &mono_defaults.object_class->byval_arg;
9579 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9580 csig->params [2] = &mono_defaults.object_class->byval_arg;
9581 mono_mb_emit_ldarg (mb, 0);
9582 mono_mb_emit_ldarg (mb, 1);
9583 mono_mb_emit_ldarg (mb, 2);
9584 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9588 /* ldelema (implicit bound check) */
9589 load_array_element_address (mb);
9590 mono_mb_emit_stloc (mb, array_slot_addr);
9592 /* if (!value) goto do_store */
9593 mono_mb_emit_ldarg (mb, 2);
9594 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9596 /* aklass = array->vtable->klass->element_class */
9597 load_array_class (mb, aklass);
9599 /*if (mono_object_isinst (value, aklass)) */
9600 mono_mb_emit_ldarg (mb, 2);
9601 mono_mb_emit_ldloc (mb, aklass);
9602 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9603 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9606 mono_mb_patch_branch (mb, b1);
9607 mono_mb_emit_ldloc (mb, array_slot_addr);
9608 mono_mb_emit_ldarg (mb, 2);
9609 mono_mb_emit_byte (mb, CEE_STIND_REF);
9610 mono_mb_emit_byte (mb, CEE_RET);
9613 mono_mb_patch_branch (mb, b2);
9615 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9618 case STELEMREF_SEALED_CLASS:
9620 <ldelema (bound check)>
9624 aklass = array->vtable->klass->element_class;
9625 vklass = value->vtable->klass;
9627 if (vklass != aklass)
9631 *array_slot_addr = value;
9634 throw new ArrayTypeMismatchException ();
9636 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9637 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9638 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9641 /* ldelema (implicit bound check) */
9642 load_array_element_address (mb);
9643 mono_mb_emit_stloc (mb, array_slot_addr);
9645 /* if (!value) goto do_store */
9646 mono_mb_emit_ldarg (mb, 2);
9647 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9649 /* aklass = array->vtable->klass->element_class */
9650 load_array_class (mb, aklass);
9652 /* vklass = value->vtable->klass */
9653 load_value_class (mb, vklass);
9655 /*if (vklass != aklass) goto do_exception; */
9656 mono_mb_emit_ldloc (mb, aklass);
9657 mono_mb_emit_ldloc (mb, vklass);
9658 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9661 mono_mb_patch_branch (mb, b1);
9662 mono_mb_emit_ldloc (mb, array_slot_addr);
9663 mono_mb_emit_ldarg (mb, 2);
9664 mono_mb_emit_byte (mb, CEE_STIND_REF);
9665 mono_mb_emit_byte (mb, CEE_RET);
9668 mono_mb_patch_branch (mb, b2);
9669 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9672 case STELEMREF_CLASS:
9675 <ldelema (bound check)>
9679 aklass = array->vtable->klass->element_class;
9680 vklass = value->vtable->klass;
9682 if (vklass->idepth < aklass->idepth)
9685 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9689 *array_slot_addr = value;
9693 throw new ArrayTypeMismatchException ();
9695 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9696 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9697 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9699 /* ldelema (implicit bound check) */
9700 load_array_element_address (mb);
9701 mono_mb_emit_stloc (mb, array_slot_addr);
9703 /* if (!value) goto do_store */
9704 mono_mb_emit_ldarg (mb, 2);
9705 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9707 /* aklass = array->vtable->klass->element_class */
9708 load_array_class (mb, aklass);
9710 /* vklass = value->vtable->klass */
9711 load_value_class (mb, vklass);
9713 /*if (mono_object_isinst (value, aklass)) */
9714 mono_mb_emit_ldarg (mb, 2);
9715 mono_mb_emit_ldloc (mb, aklass);
9716 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9717 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9719 /* if (vklass->idepth < aklass->idepth) goto failue */
9720 mono_mb_emit_ldloc (mb, vklass);
9721 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9722 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9724 mono_mb_emit_ldloc (mb, aklass);
9725 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9726 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9728 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9730 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9731 mono_mb_emit_ldloc (mb, vklass);
9732 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9733 mono_mb_emit_byte (mb, CEE_LDIND_I);
9735 mono_mb_emit_ldloc (mb, aklass);
9736 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9737 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9738 mono_mb_emit_icon (mb, 1);
9739 mono_mb_emit_byte (mb, CEE_SUB);
9740 mono_mb_emit_icon (mb, sizeof (void*));
9741 mono_mb_emit_byte (mb, CEE_MUL);
9742 mono_mb_emit_byte (mb, CEE_ADD);
9743 mono_mb_emit_byte (mb, CEE_LDIND_I);
9745 mono_mb_emit_ldloc (mb, aklass);
9746 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9749 mono_mb_patch_branch (mb, b1);
9750 mono_mb_emit_ldloc (mb, array_slot_addr);
9751 mono_mb_emit_ldarg (mb, 2);
9752 mono_mb_emit_byte (mb, CEE_STIND_REF);
9753 mono_mb_emit_byte (mb, CEE_RET);
9756 mono_mb_patch_branch (mb, b2);
9757 mono_mb_patch_branch (mb, b3);
9759 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9762 case STELEMREF_INTERFACE:
9769 klass = array->obj.vtable->klass->element_class;
9771 uiid = klass->interface_id;
9772 if (uiid > vt->max_interface_id)
9774 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9777 mono_array_setref (array, index, value);
9780 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9782 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9783 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9784 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9785 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9787 /* ldelema (implicit bound check) */
9788 load_array_element_address (mb);
9789 mono_mb_emit_stloc (mb, array_slot_addr);
9791 /* if (!value) goto do_store */
9792 mono_mb_emit_ldarg (mb, 2);
9793 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9795 /* klass = array->vtable->klass->element_class */
9796 load_array_class (mb, aklass);
9798 /* vt = value->vtable */
9799 mono_mb_emit_ldarg (mb, 2);
9800 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9801 mono_mb_emit_byte (mb, CEE_LDIND_I);
9802 mono_mb_emit_stloc (mb, vtable);
9804 /* uiid = klass->interface_id; */
9805 mono_mb_emit_ldloc (mb, aklass);
9806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9807 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9808 mono_mb_emit_stloc (mb, uiid);
9810 /*if (uiid > vt->max_interface_id)*/
9811 mono_mb_emit_ldloc (mb, uiid);
9812 mono_mb_emit_ldloc (mb, vtable);
9813 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9814 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9815 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9817 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9819 /*vt->interface_bitmap*/
9820 mono_mb_emit_ldloc (mb, vtable);
9821 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9822 mono_mb_emit_byte (mb, CEE_LDIND_I);
9825 mono_mb_emit_ldloc (mb, uiid);
9826 mono_mb_emit_icon (mb, 3);
9827 mono_mb_emit_byte (mb, CEE_SHR_UN);
9829 /*vt->interface_bitmap [(uiid) >> 3]*/
9830 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9831 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9833 /*(1 << ((uiid)&7)))*/
9834 mono_mb_emit_icon (mb, 1);
9835 mono_mb_emit_ldloc (mb, uiid);
9836 mono_mb_emit_icon (mb, 7);
9837 mono_mb_emit_byte (mb, CEE_AND);
9838 mono_mb_emit_byte (mb, CEE_SHL);
9840 /*bitwise and the whole thing*/
9841 mono_mb_emit_byte (mb, CEE_AND);
9842 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9845 mono_mb_patch_branch (mb, b1);
9846 mono_mb_emit_ldloc (mb, array_slot_addr);
9847 mono_mb_emit_ldarg (mb, 2);
9848 mono_mb_emit_byte (mb, CEE_STIND_REF);
9849 mono_mb_emit_byte (mb, CEE_RET);
9852 mono_mb_patch_branch (mb, b2);
9853 mono_mb_patch_branch (mb, b3);
9854 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9858 mono_mb_emit_ldarg (mb, 0);
9859 mono_mb_emit_ldarg (mb, 1);
9860 mono_mb_emit_ldarg (mb, 2);
9861 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9862 mono_mb_emit_byte (mb, CEE_RET);
9865 #endif /* DISABLE_JIT */
9866 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9867 info->d.virtual_stelemref.kind = kind;
9868 res = mono_mb_create (mb, signature, 4, info);
9869 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9871 mono_marshal_lock ();
9872 if (!cached_methods [kind]) {
9873 cached_methods [kind] = res;
9874 mono_marshal_unlock ();
9876 mono_marshal_unlock ();
9877 mono_free_method (res);
9881 return cached_methods [kind];
9885 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9889 g_assert (array_class->rank == 1);
9890 kind = get_virtual_stelemref_kind (array_class->element_class);
9892 return get_virtual_stelemref_wrapper (kind);
9896 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9901 *nwrappers = STELEMREF_KIND_COUNT;
9902 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9903 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9904 res [i] = get_virtual_stelemref_wrapper (i);
9909 * The wrapper info for the wrapper is a WrapperInfo structure.
9912 mono_marshal_get_stelemref (void)
9914 static MonoMethod* ret = NULL;
9915 MonoMethodSignature *sig;
9916 MonoMethodBuilder *mb;
9919 guint32 b1, b2, b3, b4;
9922 int array_slot_addr;
9927 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9930 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9932 /* void stelemref (void* array, int idx, void* value) */
9933 sig->ret = &mono_defaults.void_class->byval_arg;
9934 sig->params [0] = &mono_defaults.object_class->byval_arg;
9935 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9936 sig->params [2] = &mono_defaults.object_class->byval_arg;
9939 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9940 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9941 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9945 <ldelema (bound check)>
9949 aklass = array->vtable->klass->element_class;
9950 vklass = value->vtable->klass;
9952 if (vklass->idepth < aklass->idepth)
9955 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9959 *array_slot_addr = value;
9963 if (mono_object_isinst (value, aklass))
9966 throw new ArrayTypeMismatchException ();
9969 /* ldelema (implicit bound check) */
9970 mono_mb_emit_ldarg (mb, 0);
9971 mono_mb_emit_ldarg (mb, 1);
9972 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9973 mono_mb_emit_stloc (mb, array_slot_addr);
9975 /* if (!value) goto do_store */
9976 mono_mb_emit_ldarg (mb, 2);
9977 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9979 /* aklass = array->vtable->klass->element_class */
9980 mono_mb_emit_ldarg (mb, 0);
9981 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9982 mono_mb_emit_byte (mb, CEE_LDIND_I);
9983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9984 mono_mb_emit_byte (mb, CEE_LDIND_I);
9985 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9986 mono_mb_emit_byte (mb, CEE_LDIND_I);
9987 mono_mb_emit_stloc (mb, aklass);
9989 /* vklass = value->vtable->klass */
9990 mono_mb_emit_ldarg (mb, 2);
9991 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9992 mono_mb_emit_byte (mb, CEE_LDIND_I);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9994 mono_mb_emit_byte (mb, CEE_LDIND_I);
9995 mono_mb_emit_stloc (mb, vklass);
9997 /* if (vklass->idepth < aklass->idepth) goto failue */
9998 mono_mb_emit_ldloc (mb, vklass);
9999 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10000 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10002 mono_mb_emit_ldloc (mb, aklass);
10003 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10004 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10006 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10008 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10009 mono_mb_emit_ldloc (mb, vklass);
10010 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10011 mono_mb_emit_byte (mb, CEE_LDIND_I);
10013 mono_mb_emit_ldloc (mb, aklass);
10014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10015 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10016 mono_mb_emit_icon (mb, 1);
10017 mono_mb_emit_byte (mb, CEE_SUB);
10018 mono_mb_emit_icon (mb, sizeof (void*));
10019 mono_mb_emit_byte (mb, CEE_MUL);
10020 mono_mb_emit_byte (mb, CEE_ADD);
10021 mono_mb_emit_byte (mb, CEE_LDIND_I);
10023 mono_mb_emit_ldloc (mb, aklass);
10025 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10027 copy_pos = mono_mb_get_label (mb);
10029 mono_mb_patch_branch (mb, b1);
10030 mono_mb_emit_ldloc (mb, array_slot_addr);
10031 mono_mb_emit_ldarg (mb, 2);
10032 mono_mb_emit_byte (mb, CEE_STIND_REF);
10034 mono_mb_emit_byte (mb, CEE_RET);
10037 mono_mb_patch_branch (mb, b2);
10038 mono_mb_patch_branch (mb, b3);
10040 mono_mb_emit_ldarg (mb, 2);
10041 mono_mb_emit_ldloc (mb, aklass);
10042 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10044 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10045 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10046 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10048 mono_mb_emit_byte (mb, CEE_RET);
10050 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10051 ret = mono_mb_create (mb, sig, 4, info);
10058 * mono_marshal_get_gsharedvt_in_wrapper:
10060 * This wrapper handles calls from normal code to gsharedvt code.
10062 * The wrapper info for the wrapper is a WrapperInfo structure.
10065 mono_marshal_get_gsharedvt_in_wrapper (void)
10067 static MonoMethod* ret = NULL;
10068 MonoMethodSignature *sig;
10069 MonoMethodBuilder *mb;
10075 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", 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_IN);
10087 ret = mono_mb_create (mb, sig, 4, info);
10094 * mono_marshal_get_gsharedvt_out_wrapper:
10096 * This wrapper handles calls from gsharedvt code to normal code.
10098 * The wrapper info for the wrapper is a WrapperInfo structure.
10101 mono_marshal_get_gsharedvt_out_wrapper (void)
10103 static MonoMethod* ret = NULL;
10104 MonoMethodSignature *sig;
10105 MonoMethodBuilder *mb;
10111 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10113 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10114 sig->ret = &mono_defaults.void_class->byval_arg;
10116 #ifndef DISABLE_JIT
10118 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10120 mono_mb_emit_byte (mb, CEE_RET);
10122 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10123 ret = mono_mb_create (mb, sig, 4, info);
10132 MonoMethod *method;
10135 /* LOCKING: vars accessed under the marshal lock */
10136 static ArrayElemAddr *elem_addr_cache = NULL;
10137 static int elem_addr_cache_size = 0;
10138 static int elem_addr_cache_next = 0;
10141 * mono_marshal_get_array_address:
10142 * @rank: rank of the array type
10143 * @elem_size: size in bytes of an element of an array.
10145 * Returns a MonoMethod that implements the code to get the address
10146 * of an element in a multi-dimenasional array of @rank dimensions.
10147 * The returned method takes an array as the first argument and then
10148 * @rank indexes for the @rank dimensions.
10149 * If ELEM_SIZE is 0, read the array size from the array object.
10152 mono_marshal_get_array_address (int rank, int elem_size)
10155 MonoMethodBuilder *mb;
10156 MonoMethodSignature *sig;
10159 int i, bounds, ind, realidx;
10160 int branch_pos, *branch_positions;
10164 mono_marshal_lock ();
10165 for (i = 0; i < elem_addr_cache_next; ++i) {
10166 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10167 ret = elem_addr_cache [i].method;
10171 mono_marshal_unlock ();
10175 branch_positions = g_new0 (int, rank);
10177 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10179 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10180 sig->ret = &mono_defaults.int_class->byval_arg;
10181 sig->params [0] = &mono_defaults.object_class->byval_arg;
10182 for (i = 0; i < rank; ++i) {
10183 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10186 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10187 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10190 #ifndef DISABLE_JIT
10191 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10192 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10193 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10195 /* bounds = array->bounds; */
10196 mono_mb_emit_ldarg (mb, 0);
10197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10198 mono_mb_emit_byte (mb, CEE_LDIND_I);
10199 mono_mb_emit_stloc (mb, bounds);
10201 /* ind is the overall element index, realidx is the partial index in a single dimension */
10202 /* ind = idx0 - bounds [0].lower_bound */
10203 mono_mb_emit_ldarg (mb, 1);
10204 mono_mb_emit_ldloc (mb, bounds);
10205 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10206 mono_mb_emit_byte (mb, CEE_ADD);
10207 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10208 mono_mb_emit_byte (mb, CEE_SUB);
10209 mono_mb_emit_stloc (mb, ind);
10210 /* if (ind >= bounds [0].length) goto exeception; */
10211 mono_mb_emit_ldloc (mb, ind);
10212 mono_mb_emit_ldloc (mb, bounds);
10213 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10214 mono_mb_emit_byte (mb, CEE_ADD);
10215 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10216 /* note that we use unsigned comparison */
10217 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10219 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10220 * We could also decide to ignore the passed elem_size and get it
10221 * from the array object, to reduce the number of methods we generate:
10222 * the additional cost is 3 memory loads and a non-immediate mul.
10224 for (i = 1; i < rank; ++i) {
10225 /* realidx = idxi - bounds [i].lower_bound */
10226 mono_mb_emit_ldarg (mb, 1 + i);
10227 mono_mb_emit_ldloc (mb, bounds);
10228 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10229 mono_mb_emit_byte (mb, CEE_ADD);
10230 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10231 mono_mb_emit_byte (mb, CEE_SUB);
10232 mono_mb_emit_stloc (mb, realidx);
10233 /* if (realidx >= bounds [i].length) goto exeception; */
10234 mono_mb_emit_ldloc (mb, realidx);
10235 mono_mb_emit_ldloc (mb, bounds);
10236 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10237 mono_mb_emit_byte (mb, CEE_ADD);
10238 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10239 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10240 /* ind = ind * bounds [i].length + realidx */
10241 mono_mb_emit_ldloc (mb, ind);
10242 mono_mb_emit_ldloc (mb, bounds);
10243 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10244 mono_mb_emit_byte (mb, CEE_ADD);
10245 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10246 mono_mb_emit_byte (mb, CEE_MUL);
10247 mono_mb_emit_ldloc (mb, realidx);
10248 mono_mb_emit_byte (mb, CEE_ADD);
10249 mono_mb_emit_stloc (mb, ind);
10252 /* return array->vector + ind * element_size */
10253 mono_mb_emit_ldarg (mb, 0);
10254 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10255 mono_mb_emit_ldloc (mb, ind);
10257 mono_mb_emit_icon (mb, elem_size);
10259 /* Load arr->vtable->klass->sizes.element_class */
10260 mono_mb_emit_ldarg (mb, 0);
10261 mono_mb_emit_byte (mb, CEE_CONV_I);
10262 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10263 mono_mb_emit_byte (mb, CEE_ADD);
10264 mono_mb_emit_byte (mb, CEE_LDIND_I);
10265 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10266 mono_mb_emit_byte (mb, CEE_ADD);
10267 mono_mb_emit_byte (mb, CEE_LDIND_I);
10268 /* sizes is an union, so this reads sizes.element_size */
10269 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10270 mono_mb_emit_byte (mb, CEE_ADD);
10271 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10273 mono_mb_emit_byte (mb, CEE_MUL);
10274 mono_mb_emit_byte (mb, CEE_ADD);
10275 mono_mb_emit_byte (mb, CEE_RET);
10277 /* patch the branches to get here and throw */
10278 for (i = 1; i < rank; ++i) {
10279 mono_mb_patch_branch (mb, branch_positions [i]);
10281 mono_mb_patch_branch (mb, branch_pos);
10282 /* throw exception */
10283 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10285 g_free (branch_positions);
10286 #endif /* DISABLE_JIT */
10288 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10289 info->d.element_addr.rank = rank;
10290 info->d.element_addr.elem_size = elem_size;
10291 ret = mono_mb_create (mb, sig, 4, info);
10294 /* cache the result */
10296 mono_marshal_lock ();
10297 for (i = 0; i < elem_addr_cache_next; ++i) {
10298 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10299 /* FIXME: free ret */
10300 ret = elem_addr_cache [i].method;
10306 if (elem_addr_cache_next >= elem_addr_cache_size) {
10307 int new_size = elem_addr_cache_size + 4;
10308 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10309 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10310 g_free (elem_addr_cache);
10311 elem_addr_cache = new_array;
10312 elem_addr_cache_size = new_size;
10314 elem_addr_cache [elem_addr_cache_next].rank = rank;
10315 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10316 elem_addr_cache [elem_addr_cache_next].method = ret;
10317 elem_addr_cache_next ++;
10319 mono_marshal_unlock ();
10324 * mono_marshal_get_array_accessor_wrapper:
10326 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10329 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10331 MonoMethodSignature *sig;
10332 MonoMethodBuilder *mb;
10336 MonoGenericContext *ctx = NULL;
10337 MonoMethod *orig_method = NULL;
10338 MonoGenericContainer *container = NULL;
10342 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10343 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10344 * FIXME: Use generic methods.
10351 g_assert_not_reached ();
10353 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10354 if ((res = mono_marshal_find_in_cache (cache, method)))
10358 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10361 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10363 #ifndef DISABLE_JIT
10364 /* Call the method */
10366 mono_mb_emit_ldarg (mb, 0);
10367 for (i = 0; i < sig->param_count; i++)
10368 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10372 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10373 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10375 mono_mb_emit_managed_call (mb, method, NULL);
10377 mono_mb_emit_byte (mb, CEE_RET);
10380 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10381 info->d.array_accessor.method = method;
10385 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10386 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10388 res = mono_mb_create_and_cache_full (cache, method,
10389 mb, sig, sig->param_count + 16,
10398 mono_marshal_alloc (gulong size, MonoError *error)
10402 mono_error_init (error);
10405 res = CoTaskMemAlloc (size);
10407 res = g_try_malloc ((gulong)size);
10409 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10414 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10416 ves_icall_marshal_alloc (gulong size)
10419 void *ret = mono_marshal_alloc (size, &error);
10420 if (!mono_error_ok (&error)) {
10421 mono_error_set_pending_exception (&error);
10429 mono_marshal_free (gpointer ptr)
10432 CoTaskMemFree (ptr);
10439 mono_marshal_free_array (gpointer *ptr, int size)
10446 for (i = 0; i < size; i++)
10452 mono_marshal_string_to_utf16 (MonoString *s)
10454 return s ? mono_string_chars (s) : NULL;
10457 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10459 mono_marshal_string_to_utf16_copy (MonoString *s)
10465 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10466 if (!mono_error_ok (&error)) {
10467 mono_error_set_pending_exception (&error);
10470 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10471 res [mono_string_length (s)] = 0;
10477 * mono_marshal_set_last_error:
10479 * This function is invoked to set the last error value from a P/Invoke call
10480 * which has SetLastError set.
10483 mono_marshal_set_last_error (void)
10486 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10488 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10493 mono_marshal_set_last_error_windows (int error)
10496 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10501 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10502 gpointer dest, gint32 length)
10507 MONO_CHECK_ARG_NULL (src,);
10508 MONO_CHECK_ARG_NULL (dest,);
10510 if (src->obj.vtable->klass->rank != 1) {
10511 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10514 if (start_index < 0) {
10515 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10519 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10522 if (start_index + length > mono_array_length (src)) {
10523 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10527 element_size = mono_array_element_size (src->obj.vtable->klass);
10529 /* no references should be involved */
10530 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10532 memcpy (dest, source_addr, length * element_size);
10536 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10537 MonoArray *dest, gint32 length)
10542 MONO_CHECK_ARG_NULL (src,);
10543 MONO_CHECK_ARG_NULL (dest,);
10545 if (dest->obj.vtable->klass->rank != 1) {
10546 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10549 if (start_index < 0) {
10550 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10554 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10557 if (start_index + length > mono_array_length (dest)) {
10558 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10561 element_size = mono_array_element_size (dest->obj.vtable->klass);
10563 /* no references should be involved */
10564 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10566 memcpy (dest_addr, src, length * element_size);
10570 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10575 return mono_string_new (mono_domain_get (), ptr);
10579 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10582 MonoString *result = NULL;
10583 mono_error_init (&error);
10585 mono_error_set_argument_null (&error, "ptr", "");
10587 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10588 mono_error_set_pending_exception (&error);
10593 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10596 MonoString *res = NULL;
10597 MonoDomain *domain = mono_domain_get ();
10607 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10608 if (!mono_error_ok (&error)) {
10609 mono_error_set_pending_exception (&error);
10616 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10619 MonoString *res = NULL;
10620 MonoDomain *domain = mono_domain_get ();
10622 mono_error_init (&error);
10626 mono_error_set_argument_null (&error, "ptr", "");
10628 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10631 if (!mono_error_ok (&error))
10632 mono_error_set_pending_exception (&error);
10637 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10639 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10643 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10649 MONO_CHECK_ARG_NULL (rtype, 0);
10651 type = rtype->type;
10652 klass = mono_class_from_mono_type (type);
10653 if (!mono_class_init (klass)) {
10654 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10658 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10660 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10661 return sizeof (gpointer);
10662 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10664 MonoException *exc;
10666 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10667 exc = mono_get_exception_argument ("t", msg);
10669 mono_set_pending_exception (exc);
10673 return mono_class_native_size (klass, NULL);
10677 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10680 MonoMethod *method;
10683 MONO_CHECK_ARG_NULL (obj,);
10684 MONO_CHECK_ARG_NULL (dst,);
10686 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10690 pa [2] = &delete_old;
10692 mono_runtime_invoke_checked (method, NULL, pa, &error);
10693 if (!mono_error_ok (&error))
10694 mono_error_set_pending_exception (&error);
10698 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10700 MonoMethod *method;
10703 mono_error_init (error);
10705 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10710 mono_runtime_invoke_checked (method, NULL, pa, error);
10714 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10719 MONO_CHECK_ARG_NULL (src,);
10720 MONO_CHECK_ARG_NULL (dst,);
10722 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10724 if (t->type == MONO_TYPE_VALUETYPE) {
10725 MonoException *exc;
10728 tmp = g_strdup_printf ("Destination is a boxed value type.");
10729 exc = mono_get_exception_argument ("dst", tmp);
10732 mono_set_pending_exception (exc);
10736 ptr_to_structure (src, dst, &error);
10737 if (!mono_error_ok (&error))
10738 mono_error_set_pending_exception (&error);
10742 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10746 MonoDomain *domain = mono_domain_get ();
10751 MONO_CHECK_ARG_NULL (type, NULL);
10753 klass = mono_class_from_mono_type (type->type);
10754 if (!mono_class_init (klass)) {
10755 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10759 res = mono_object_new_checked (domain, klass, &error);
10760 if (!mono_error_ok (&error)) {
10761 mono_error_set_pending_exception (&error);
10765 ptr_to_structure (src, res, &error);
10766 if (!mono_error_ok (&error)) {
10767 mono_error_set_pending_exception (&error);
10775 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10777 MonoMarshalType *info;
10780 int match_index = -1;
10782 MONO_CHECK_ARG_NULL (type, 0);
10783 MONO_CHECK_ARG_NULL (field_name, 0);
10785 fname = mono_string_to_utf8 (field_name);
10786 klass = mono_class_from_mono_type (type->type);
10787 if (!mono_class_init (klass)) {
10788 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10792 while (klass && match_index == -1) {
10793 MonoClassField* field;
10795 gpointer iter = NULL;
10796 while ((field = mono_class_get_fields (klass, &iter))) {
10797 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10799 if (!strcmp (fname, mono_field_get_name (field))) {
10806 if (match_index == -1)
10807 klass = klass->parent;
10812 if(match_index == -1) {
10813 MonoException* exc;
10816 /* Get back original class instance */
10817 klass = mono_class_from_mono_type (type->type);
10819 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10820 exc = mono_get_exception_argument ("fieldName", tmp);
10823 mono_set_pending_exception ((MonoException*)exc);
10827 info = mono_marshal_load_type_info (klass);
10828 return info->fields [match_index].offset;
10832 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10837 tres = mono_string_to_utf8 (string);
10841 len = strlen (tres) + 1;
10842 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10843 memcpy (ret, tres, len);
10848 return mono_string_to_utf8 (string);
10853 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10855 if (string == NULL)
10858 #ifdef TARGET_WIN32
10859 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10860 ((mono_string_length (string) + 1) * 2);
10862 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10864 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10865 res [mono_string_length (string)] = 0;
10871 mono_struct_delete_old (MonoClass *klass, char *ptr)
10873 MonoMarshalType *info;
10876 info = mono_marshal_load_type_info (klass);
10878 for (i = 0; i < info->num_fields; i++) {
10879 MonoMarshalConv conv;
10880 MonoType *ftype = info->fields [i].field->type;
10883 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10886 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10887 klass->unicode, &conv);
10889 cpos = ptr + info->fields [i].offset;
10892 case MONO_MARSHAL_CONV_NONE:
10893 if (MONO_TYPE_ISSTRUCT (ftype)) {
10894 mono_struct_delete_old (ftype->data.klass, cpos);
10898 case MONO_MARSHAL_CONV_STR_LPWSTR:
10899 /* We assume this field points inside a MonoString */
10901 case MONO_MARSHAL_CONV_STR_LPTSTR:
10902 #ifdef TARGET_WIN32
10903 /* We assume this field points inside a MonoString
10907 case MONO_MARSHAL_CONV_STR_LPSTR:
10908 case MONO_MARSHAL_CONV_STR_BSTR:
10909 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10910 case MONO_MARSHAL_CONV_STR_TBSTR:
10911 mono_marshal_free (*(gpointer *)cpos);
10921 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10925 MONO_CHECK_ARG_NULL (src,);
10926 MONO_CHECK_ARG_NULL (type,);
10928 klass = mono_class_from_mono_type (type->type);
10929 if (!mono_class_init (klass)) {
10930 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10934 mono_struct_delete_old (klass, (char *)src);
10938 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10941 size_t s = (size_t)size;
10944 /* This returns a valid pointer for size 0 on MS.NET */
10948 res = GlobalAlloc (GMEM_FIXED, s);
10950 res = g_try_malloc (s);
10953 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10961 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10964 size_t s = (size_t)size;
10967 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10972 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10974 res = g_try_realloc (ptr, s);
10977 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10985 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10995 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11000 res = CoTaskMemAlloc (size);
11002 if ((gulong)size == 0)
11003 /* This returns a valid pointer for size 0 on MS.NET */
11006 res = g_try_malloc ((gulong)size);
11009 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11016 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11019 CoTaskMemFree (ptr);
11026 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11031 res = CoTaskMemRealloc (ptr, size);
11033 res = g_try_realloc (ptr, (gulong)size);
11036 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11043 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11045 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11049 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11051 MonoClass *klass = mono_type_get_class (type->type);
11052 if (!mono_class_init (klass)) {
11053 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11057 return mono_ftnptr_to_delegate (klass, ftn);
11061 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11063 return mono_delegate_to_ftnptr (delegate);
11067 * mono_marshal_is_loading_type_info:
11069 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11073 mono_marshal_is_loading_type_info (MonoClass *klass)
11075 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11077 return g_slist_find (loads_list, klass) != NULL;
11081 * mono_marshal_load_type_info:
11083 * Initialize klass->marshal_info using information from metadata. This function can
11084 * recursively call itself, and the caller is responsible to avoid that by calling
11085 * mono_marshal_is_loading_type_info () beforehand.
11087 * LOCKING: Acquires the loader lock.
11090 mono_marshal_load_type_info (MonoClass* klass)
11093 guint32 native_size = 0, min_align = 1, packing;
11094 MonoMarshalType *info;
11095 MonoClassField* field;
11098 GSList *loads_list;
11100 g_assert (klass != NULL);
11102 if (klass->marshal_info)
11103 return klass->marshal_info;
11105 if (!klass->inited)
11106 mono_class_init (klass);
11108 if (klass->marshal_info)
11109 return klass->marshal_info;
11112 * This function can recursively call itself, so we keep the list of classes which are
11113 * under initialization in a TLS list.
11115 g_assert (!mono_marshal_is_loading_type_info (klass));
11116 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11117 loads_list = g_slist_prepend (loads_list, klass);
11118 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11121 while ((field = mono_class_get_fields (klass, &iter))) {
11122 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11124 if (mono_field_is_deleted (field))
11129 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11131 /* The mempool is protected by the loader lock */
11132 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11133 info->num_fields = count;
11135 /* Try to find a size for this type in metadata */
11136 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11138 if (klass->parent) {
11139 int parent_size = mono_class_native_size (klass->parent, NULL);
11141 /* Add parent size to real size */
11142 native_size += parent_size;
11143 info->native_size = parent_size;
11146 packing = klass->packing_size ? klass->packing_size : 8;
11149 while ((field = mono_class_get_fields (klass, &iter))) {
11153 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11156 if (mono_field_is_deleted (field))
11158 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11159 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11160 NULL, NULL, &info->fields [j].mspec);
11162 info->fields [j].field = field;
11164 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11165 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11166 /* This field is a hack inserted by MCS to empty structures */
11171 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11172 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11173 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11174 &align, TRUE, klass->unicode);
11175 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11176 min_align = MAX (align, min_align);
11177 info->fields [j].offset = info->native_size;
11178 info->fields [j].offset += align - 1;
11179 info->fields [j].offset &= ~(align - 1);
11180 info->native_size = info->fields [j].offset + size;
11182 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11183 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11184 &align, TRUE, klass->unicode);
11185 min_align = MAX (align, min_align);
11186 info->fields [j].offset = field->offset - sizeof (MonoObject);
11187 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11193 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11194 info->native_size = MAX (native_size, info->native_size);
11196 * If the provided Size is equal or larger than the calculated size, and there
11197 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11199 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11200 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11203 min_align = MIN (min_align, packing);
11207 if (info->native_size & (min_align - 1)) {
11208 info->native_size += min_align - 1;
11209 info->native_size &= ~(min_align - 1);
11212 info->min_align = min_align;
11214 /* Update the class's blittable info, if the layouts don't match */
11215 if (info->native_size != mono_class_value_size (klass, NULL))
11216 klass->blittable = FALSE;
11218 /* If this is an array type, ensure that we have element info */
11219 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11220 mono_marshal_load_type_info (klass->element_class);
11223 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11224 loads_list = g_slist_remove (loads_list, klass);
11225 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11227 mono_marshal_lock ();
11228 if (!klass->marshal_info) {
11229 /*We do double-checking locking on marshal_info */
11230 mono_memory_barrier ();
11231 klass->marshal_info = info;
11233 mono_marshal_unlock ();
11235 return klass->marshal_info;
11239 * mono_class_native_size:
11242 * Returns: the native size of an object instance (when marshaled
11243 * to unmanaged code)
11246 mono_class_native_size (MonoClass *klass, guint32 *align)
11248 if (!klass->marshal_info) {
11249 if (mono_marshal_is_loading_type_info (klass)) {
11254 mono_marshal_load_type_info (klass);
11259 *align = klass->marshal_info->min_align;
11261 return klass->marshal_info->native_size;
11265 * mono_type_native_stack_size:
11266 * @t: the type to return the size it uses on the stack
11268 * Returns: the number of bytes required to hold an instance of this
11269 * type on the native stack
11272 mono_type_native_stack_size (MonoType *t, guint32 *align)
11276 g_assert (t != NULL);
11282 *align = sizeof (gpointer);
11283 return sizeof (gpointer);
11287 case MONO_TYPE_BOOLEAN:
11288 case MONO_TYPE_CHAR:
11299 case MONO_TYPE_STRING:
11300 case MONO_TYPE_OBJECT:
11301 case MONO_TYPE_CLASS:
11302 case MONO_TYPE_SZARRAY:
11303 case MONO_TYPE_PTR:
11304 case MONO_TYPE_FNPTR:
11305 case MONO_TYPE_ARRAY:
11306 *align = sizeof (gpointer);
11307 return sizeof (gpointer);
11312 *align = MONO_ABI_ALIGNOF (double);
11316 *align = MONO_ABI_ALIGNOF (gint64);
11318 case MONO_TYPE_GENERICINST:
11319 if (!mono_type_generic_inst_is_valuetype (t)) {
11320 *align = sizeof (gpointer);
11321 return sizeof (gpointer);
11324 case MONO_TYPE_TYPEDBYREF:
11325 case MONO_TYPE_VALUETYPE: {
11327 MonoClass *klass = mono_class_from_mono_type (t);
11329 if (klass->enumtype)
11330 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11332 size = mono_class_native_size (klass, align);
11333 *align = *align + 3;
11343 g_error ("type 0x%02x unknown", t->type);
11349 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11350 gboolean as_field, gboolean unicode)
11352 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11355 switch (native_type) {
11356 case MONO_NATIVE_BOOLEAN:
11359 case MONO_NATIVE_I1:
11360 case MONO_NATIVE_U1:
11363 case MONO_NATIVE_I2:
11364 case MONO_NATIVE_U2:
11365 case MONO_NATIVE_VARIANTBOOL:
11368 case MONO_NATIVE_I4:
11369 case MONO_NATIVE_U4:
11370 case MONO_NATIVE_ERROR:
11373 case MONO_NATIVE_I8:
11374 case MONO_NATIVE_U8:
11375 *align = MONO_ABI_ALIGNOF (gint64);
11377 case MONO_NATIVE_R4:
11380 case MONO_NATIVE_R8:
11381 *align = MONO_ABI_ALIGNOF (double);
11383 case MONO_NATIVE_INT:
11384 case MONO_NATIVE_UINT:
11385 case MONO_NATIVE_LPSTR:
11386 case MONO_NATIVE_LPWSTR:
11387 case MONO_NATIVE_LPTSTR:
11388 case MONO_NATIVE_BSTR:
11389 case MONO_NATIVE_ANSIBSTR:
11390 case MONO_NATIVE_TBSTR:
11391 case MONO_NATIVE_LPARRAY:
11392 case MONO_NATIVE_SAFEARRAY:
11393 case MONO_NATIVE_IUNKNOWN:
11394 case MONO_NATIVE_IDISPATCH:
11395 case MONO_NATIVE_INTERFACE:
11396 case MONO_NATIVE_ASANY:
11397 case MONO_NATIVE_FUNC:
11398 case MONO_NATIVE_LPSTRUCT:
11399 *align = MONO_ABI_ALIGNOF (gpointer);
11400 return sizeof (gpointer);
11401 case MONO_NATIVE_STRUCT:
11402 klass = mono_class_from_mono_type (type);
11403 if (klass == mono_defaults.object_class &&
11404 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11408 return mono_class_native_size (klass, align);
11409 case MONO_NATIVE_BYVALTSTR: {
11410 int esize = unicode ? 2: 1;
11413 return mspec->data.array_data.num_elem * esize;
11415 case MONO_NATIVE_BYVALARRAY: {
11416 // FIXME: Have to consider ArraySubType
11418 klass = mono_class_from_mono_type (type);
11419 if (klass->element_class == mono_defaults.char_class) {
11420 esize = unicode ? 2 : 1;
11423 esize = mono_class_native_size (klass->element_class, align);
11426 return mspec->data.array_data.num_elem * esize;
11428 case MONO_NATIVE_CUSTOM:
11429 *align = sizeof (gpointer);
11430 return sizeof (gpointer);
11432 case MONO_NATIVE_CURRENCY:
11433 case MONO_NATIVE_VBBYREFSTR:
11435 g_error ("native type %02x not implemented", native_type);
11438 g_assert_not_reached ();
11442 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11444 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11453 t = &o->vtable->klass->byval_arg;
11457 case MONO_TYPE_PTR:
11460 case MONO_TYPE_BOOLEAN:
11463 case MONO_TYPE_CHAR:
11468 return mono_object_unbox (o);
11470 case MONO_TYPE_STRING:
11471 switch (string_encoding) {
11472 case MONO_NATIVE_LPWSTR:
11473 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11475 case MONO_NATIVE_LPSTR:
11476 return mono_string_to_lpstr ((MonoString*)o);
11479 g_warning ("marshaling conversion %d not implemented", string_encoding);
11480 g_assert_not_reached ();
11483 case MONO_TYPE_CLASS:
11484 case MONO_TYPE_VALUETYPE: {
11485 MonoMethod *method;
11488 MonoBoolean delete_old = FALSE;
11490 klass = t->data.klass;
11492 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11495 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11496 klass->blittable || klass->enumtype))
11497 return mono_object_unbox (o);
11499 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11500 if (!mono_error_ok (&error)) {
11501 mono_error_set_pending_exception (&error);
11505 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11506 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11510 pa [2] = &delete_old;
11512 mono_runtime_invoke_checked (method, NULL, pa, &error);
11513 if (!mono_error_ok (&error)) {
11514 mono_error_set_pending_exception (&error);
11524 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11528 /* This is a JIT icall, it sets the pending exception */
11530 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11539 t = &o->vtable->klass->byval_arg;
11541 case MONO_TYPE_STRING:
11542 switch (string_encoding) {
11543 case MONO_NATIVE_LPWSTR:
11544 case MONO_NATIVE_LPSTR:
11545 mono_marshal_free (ptr);
11548 g_warning ("marshaling conversion %d not implemented", string_encoding);
11549 g_assert_not_reached ();
11552 case MONO_TYPE_CLASS:
11553 case MONO_TYPE_VALUETYPE: {
11554 klass = t->data.klass;
11556 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11557 klass->blittable || klass->enumtype))
11560 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11561 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11567 mono_runtime_invoke_checked (method, NULL, pa, &error);
11568 if (!mono_error_ok (&error)) {
11569 mono_error_set_pending_exception (&error);
11574 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11575 mono_struct_delete_old (klass, (char *)ptr);
11578 mono_marshal_free (ptr);
11587 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11589 MonoMethodSignature *sig, *csig;
11590 MonoMethodBuilder *mb;
11595 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11596 mb->method->slot = -1;
11598 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11599 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11601 sig = mono_method_signature (method);
11602 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11603 csig->generic_param_count = 0;
11605 #ifndef DISABLE_JIT
11606 mono_mb_emit_ldarg (mb, 0);
11607 for (i = 0; i < csig->param_count; i++)
11608 mono_mb_emit_ldarg (mb, i + 1);
11609 mono_mb_emit_managed_call (mb, method, NULL);
11610 mono_mb_emit_byte (mb, CEE_RET);
11612 /* We can corlib internal methods */
11613 mb->skip_visibility = TRUE;
11615 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11616 info->d.generic_array_helper.method = method;
11617 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11625 * The mono_win32_compat_* functions are implementations of inline
11626 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11627 * although not exported by kernel32.
11629 * We map the appropiate kernel32 entries to these functions using
11630 * dllmaps declared in the global etc/mono/config.
11634 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11636 if (!dest || !source)
11639 memcpy (dest, source, length);
11643 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11645 memset (dest, fill, length);
11649 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11651 if (!dest || !source)
11654 memmove (dest, source, length);
11658 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11660 memset (dest, 0, length);
11664 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11669 for (i = 0; i < len; ++i)
11673 g_assert (i < len);
11676 while (byte && !(byte & 1))
11678 g_assert (byte == 1);
11681 *bitmask = buf [i];
11685 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11687 MonoMethodBuilder *mb;
11688 MonoMethodSignature *sig, *csig;
11689 MonoExceptionClause *clause;
11694 int i, param_count, sig_size, pos_leave;
11695 int coop_gc_var, coop_gc_dummy_local;
11699 klass = method->klass;
11700 image = method->klass->image;
11702 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11704 if ((res = mono_marshal_find_in_cache (cache, method)))
11707 sig = mono_method_signature (method);
11708 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11710 /* add "this" and exception param */
11711 param_count = sig->param_count + sig->hasthis + 1;
11713 /* dup & extend signature */
11714 csig = mono_metadata_signature_alloc (image, param_count);
11715 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11716 memcpy (csig, sig, sig_size);
11717 csig->param_count = param_count;
11720 csig->call_convention = MONO_CALL_DEFAULT;
11722 if (sig->hasthis) {
11724 csig->params [0] = &klass->byval_arg;
11725 /* move params up by one */
11726 for (i = 0; i < sig->param_count; i++)
11727 csig->params [i + 1] = sig->params [i];
11730 /* setup exception param as byref+[out] */
11731 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11732 &mono_defaults.exception_class->byval_arg);
11733 csig->params [param_count - 1]->byref = 1;
11734 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11736 /* convert struct return to object */
11737 if (MONO_TYPE_ISSTRUCT (sig->ret))
11738 csig->ret = &mono_defaults.object_class->byval_arg;
11740 #ifndef DISABLE_JIT
11741 /* local 0 (temp for exception object) */
11742 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11744 /* local 1 (temp for result) */
11745 if (!MONO_TYPE_IS_VOID (sig->ret))
11746 mono_mb_add_local (mb, sig->ret);
11748 if (mono_threads_is_coop_enabled ()) {
11749 /* local 4, the local to be used when calling the reset_blocking funcs */
11750 /* tons of code hardcode 3 to be the return var */
11751 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11752 /* local 5, the local used to get a stack address for suspend funcs */
11753 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11756 /* clear exception arg */
11757 mono_mb_emit_ldarg (mb, param_count - 1);
11758 mono_mb_emit_byte (mb, CEE_LDNULL);
11759 mono_mb_emit_byte (mb, CEE_STIND_REF);
11761 if (mono_threads_is_coop_enabled ()) {
11762 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11763 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11764 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11765 mono_mb_emit_stloc (mb, coop_gc_var);
11769 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11770 clause->try_offset = mono_mb_get_label (mb);
11772 /* push method's args */
11773 for (i = 0; i < param_count - 1; i++) {
11777 mono_mb_emit_ldarg (mb, i);
11779 /* get the byval type of the param */
11780 klass = mono_class_from_mono_type (csig->params [i]);
11781 type = &klass->byval_arg;
11783 /* unbox struct args */
11784 if (MONO_TYPE_ISSTRUCT (type)) {
11785 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11787 /* byref args & and the "this" arg must remain a ptr.
11788 Otherwise make a copy of the value type */
11789 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11790 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11792 csig->params [i] = &mono_defaults.object_class->byval_arg;
11797 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11798 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11800 mono_mb_emit_op (mb, CEE_CALL, method);
11802 /* save result at local 1 */
11803 if (!MONO_TYPE_IS_VOID (sig->ret))
11804 mono_mb_emit_stloc (mb, 1);
11806 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11809 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11810 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11811 clause->data.catch_class = mono_defaults.object_class;
11813 clause->handler_offset = mono_mb_get_label (mb);
11815 /* store exception at local 0 */
11816 mono_mb_emit_stloc (mb, 0);
11817 mono_mb_emit_ldarg (mb, param_count - 1);
11818 mono_mb_emit_ldloc (mb, 0);
11819 mono_mb_emit_byte (mb, CEE_STIND_REF);
11820 mono_mb_emit_branch (mb, CEE_LEAVE);
11822 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11824 mono_mb_set_clauses (mb, 1, clause);
11826 mono_mb_patch_branch (mb, pos_leave);
11829 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11830 mono_mb_emit_ldloc (mb, 1);
11832 /* box the return value */
11833 if (MONO_TYPE_ISSTRUCT (sig->ret))
11834 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11837 if (mono_threads_is_coop_enabled ()) {
11838 /* XXX merge reset_blocking_end with detach */
11839 mono_mb_emit_ldloc (mb, coop_gc_var);
11840 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11841 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11844 mono_mb_emit_byte (mb, CEE_RET);
11847 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11854 * mono_marshal_free_dynamic_wrappers:
11856 * Free wrappers of the dynamic method METHOD.
11859 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11861 MonoImage *image = method->klass->image;
11863 g_assert (method_is_dynamic (method));
11865 /* This could be called during shutdown */
11866 if (marshal_mutex_initialized)
11867 mono_marshal_lock ();
11869 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11870 * they could be shared with other methods ?
11872 if (image->wrapper_caches.runtime_invoke_direct_cache)
11873 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11874 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11875 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11876 // FIXME: Need to clear the caches in other images as well
11877 if (image->delegate_bound_static_invoke_cache)
11878 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11880 if (marshal_mutex_initialized)
11881 mono_marshal_unlock ();
11885 mono_marshal_has_ftnptr_eh_callback (void)
11887 return ftnptr_eh_callback != NULL;
11891 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11893 g_assert (ftnptr_eh_callback);
11894 ftnptr_eh_callback (gchandle);
11898 * mono_install_ftnptr_eh_callback:
11900 * Install a callback that should be called when there is a managed exception
11901 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11902 * managed exception to a native exception, to properly unwind the native
11903 * stack; this native exception will then be converted back to a managed
11904 * exception in their managed-to-native wrapper.
11907 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11909 ftnptr_eh_callback = callback;