2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
47 #include <mono/utils/mono-error-internals.h>
52 /* #define DEBUG_RUNTIME_CODE */
54 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
58 #include "mono/cil/opcode.def"
64 * This mutex protects the various marshalling related caches in MonoImage
65 * and a few other data structures static to this file.
67 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
68 * runtime locking latice. Which means it can take simple locks suck as the image lock.
70 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
71 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
72 static mono_mutex_t marshal_mutex;
73 static gboolean marshal_mutex_initialized;
75 static MonoNativeTlsKey last_error_tls_id;
77 static MonoNativeTlsKey load_type_info_tls_id;
79 static gboolean use_aot_wrappers;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
91 mono_struct_delete_old (MonoClass *klass, char *ptr);
94 mono_marshal_string_to_utf16 (MonoString *s);
97 mono_marshal_string_to_utf16_copy (MonoString *s);
100 mono_string_to_lpstr (MonoString *string_obj);
102 static MonoStringBuilder *
103 mono_string_utf8_to_builder2 (char *text);
105 static MonoStringBuilder *
106 mono_string_utf16_to_builder2 (gunichar2 *text);
109 mono_string_new_len_wrapper (const char *text, guint length);
112 mono_string_from_byvalstr (const char *data, int len);
115 mono_string_from_byvalwstr (gunichar2 *data, int len);
118 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
121 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_set_last_error_windows (int error);
139 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
141 static void init_safe_handle (void);
144 ves_icall_marshal_alloc (gulong size);
147 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
150 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
153 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
156 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
159 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
162 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
165 mono_delegate_to_ftnptr (MonoDelegate *delegate);
168 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
171 mono_array_to_savearray (MonoArray *array);
174 mono_array_to_lparray (MonoArray *array);
177 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
180 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
183 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
194 /* Lazy class loading functions */
195 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
196 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
197 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
198 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
200 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
201 static MonoMethod *sh_dangerous_add_ref;
202 static MonoMethod *sh_dangerous_release;
207 sh_dangerous_add_ref = mono_class_get_method_from_name (
208 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
209 sh_dangerous_release = mono_class_get_method_from_name (
210 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
214 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
216 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
218 mono_register_jit_icall (func, name, sig, no_wrapper);
222 mono_signature_no_pinvoke (MonoMethod *method)
224 MonoMethodSignature *sig = mono_method_signature (method);
226 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
227 sig->pinvoke = FALSE;
234 mono_marshal_init_tls (void)
236 mono_native_tls_alloc (&last_error_tls_id, NULL);
237 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
241 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
244 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
245 mono_error_set_pending_exception (&error);
250 mono_marshal_init (void)
252 static gboolean module_initialized = FALSE;
254 if (!module_initialized) {
255 module_initialized = TRUE;
256 mono_os_mutex_init_recursive (&marshal_mutex);
257 marshal_mutex_initialized = TRUE;
259 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
260 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
261 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
262 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
263 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
264 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
265 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
266 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
267 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
268 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
269 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
270 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
271 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
272 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
273 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
274 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
275 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
276 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
277 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
278 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
279 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
280 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
281 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
282 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
283 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
284 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
285 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
286 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
287 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
288 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
289 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
290 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
291 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
292 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
293 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
294 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
295 register_icall (g_free, "g_free", "void ptr", FALSE);
296 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
297 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
298 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
299 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
300 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
301 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
302 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
303 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
304 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
305 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
307 mono_cominterop_init ();
308 mono_remoting_init ();
310 if (mono_threads_is_coop_enabled ()) {
311 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
312 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
313 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
314 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
320 mono_marshal_cleanup (void)
322 mono_cominterop_cleanup ();
324 mono_native_tls_free (load_type_info_tls_id);
325 mono_native_tls_free (last_error_tls_id);
326 mono_os_mutex_destroy (&marshal_mutex);
327 marshal_mutex_initialized = FALSE;
331 mono_marshal_lock_internal (void)
333 mono_marshal_lock ();
337 mono_marshal_unlock_internal (void)
339 mono_marshal_unlock ();
342 /* This is a JIT icall, it sets the pending exception and return NULL on error */
344 mono_delegate_to_ftnptr (MonoDelegate *delegate)
347 MonoMethod *method, *wrapper;
349 uint32_t target_handle = 0;
354 if (delegate->delegate_trampoline)
355 return delegate->delegate_trampoline;
357 klass = ((MonoObject *)delegate)->vtable->klass;
358 g_assert (klass->delegate);
360 method = delegate->method;
361 if (delegate->method_is_virtual)
362 method = mono_object_get_virtual_method (delegate->target, method);
364 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
365 const char *exc_class, *exc_arg;
368 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
370 g_assert (exc_class);
371 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
377 if (delegate->target) {
378 /* Produce a location which can be embedded in JITted code */
379 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
382 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
384 delegate->delegate_trampoline = mono_compile_method (wrapper);
386 // Add the delegate to the delegate hash table
387 delegate_hash_table_add (delegate);
389 /* when the object is collected, collect the dynamic method, too */
390 mono_object_register_finalizer ((MonoObject*)delegate, &error);
391 if (!mono_error_ok (&error)) {
392 mono_error_set_pending_exception (&error);
396 return delegate->delegate_trampoline;
400 * this hash table maps from a delegate trampoline object to a weak reference
401 * of the delegate. As an optimizations with a non-moving GC we store the
402 * object pointer itself, otherwise we use a GC handle.
404 static GHashTable *delegate_hash_table;
407 delegate_hash_table_new (void) {
408 return g_hash_table_new (NULL, NULL);
412 delegate_hash_table_remove (MonoDelegate *d)
414 guint32 gchandle = 0;
416 mono_marshal_lock ();
417 if (delegate_hash_table == NULL)
418 delegate_hash_table = delegate_hash_table_new ();
419 if (mono_gc_is_moving ())
420 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
421 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
422 mono_marshal_unlock ();
423 if (gchandle && mono_gc_is_moving ())
424 mono_gchandle_free (gchandle);
428 delegate_hash_table_add (MonoDelegate *d)
431 guint32 old_gchandle;
433 mono_marshal_lock ();
434 if (delegate_hash_table == NULL)
435 delegate_hash_table = delegate_hash_table_new ();
436 if (mono_gc_is_moving ()) {
437 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
438 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
439 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
441 mono_gchandle_free (old_gchandle);
443 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
445 mono_marshal_unlock ();
449 * mono_marshal_use_aot_wrappers:
451 * Instructs this module to use AOT compatible wrappers.
454 mono_marshal_use_aot_wrappers (gboolean use)
456 use_aot_wrappers = use;
460 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
463 MonoCustomAttrInfo *cinfo;
464 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
466 /* The attribute is only available in Net 2.0 */
467 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
469 * The pinvoke attributes are stored in a real custom attribute so we have to
472 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
473 if (!mono_error_ok (&error)) {
474 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
475 mono_error_cleanup (&error);
477 if (cinfo && !mono_runtime_get_no_exec ()) {
478 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
480 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
482 if (!mono_error_ok (&error)) {
483 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
484 mono_error_cleanup (&error);
488 mono_custom_attrs_free (cinfo);
493 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
495 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
504 mono_marshal_lock ();
505 if (delegate_hash_table == NULL)
506 delegate_hash_table = delegate_hash_table_new ();
508 if (mono_gc_is_moving ()) {
509 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
510 mono_marshal_unlock ();
512 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
516 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
517 mono_marshal_unlock ();
520 /* This is a native function, so construct a delegate for it */
521 MonoMethodSignature *sig;
523 MonoMarshalSpec **mspecs;
524 MonoMethod *invoke = mono_get_delegate_invoke (klass);
525 MonoMethodPInvoke piinfo;
526 MonoObject *this_obj;
529 if (use_aot_wrappers) {
530 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
531 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
532 if (!is_ok (&error)) {
533 mono_error_set_pending_exception (&error);
537 memset (&piinfo, 0, sizeof (piinfo));
538 parse_unmanaged_function_pointer_attr (klass, &piinfo);
540 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
541 mono_method_get_marshal_info (invoke, mspecs);
542 /* Freed below so don't alloc from mempool */
543 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
546 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
549 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
551 mono_metadata_free_marshal_spec (mspecs [i]);
556 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
557 if (!mono_error_ok (&error)) {
558 mono_error_set_pending_exception (&error);
561 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
564 if (d->object.vtable->domain != mono_domain_get ()) {
565 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
573 mono_delegate_free_ftnptr (MonoDelegate *delegate)
578 delegate_hash_table_remove (delegate);
580 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
582 if (!delegate->target) {
583 /* The wrapper method is shared between delegates -> no need to free it */
592 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
595 method = mono_jit_info_get_method (ji);
596 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
598 /*the target gchandle is the first entry after size and the wrapper itself.*/
599 gchandle = GPOINTER_TO_UINT (method_data [2]);
602 mono_gchandle_free (gchandle);
604 mono_runtime_free_method (mono_object_domain (delegate), method);
609 mono_string_from_byvalstr (const char *data, int max_len)
611 MonoDomain *domain = mono_domain_get ();
617 while (len < max_len - 1 && data [len])
620 return mono_string_new_len (domain, data, len);
623 /* This is a JIT icall, it sets the pending exception and return NULL on error */
625 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
628 MonoString *res = NULL;
629 MonoDomain *domain = mono_domain_get ();
635 while (data [len]) len++;
637 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
638 if (!mono_error_ok (&error)) {
639 mono_error_set_pending_exception (&error);
646 mono_array_to_savearray (MonoArray *array)
651 g_assert_not_reached ();
656 mono_array_to_lparray (MonoArray *array)
659 gpointer *nativeArray = NULL;
660 int nativeArraySize = 0;
670 klass = array->obj.vtable->klass;
672 switch (klass->element_class->byval_arg.type) {
674 g_assert_not_reached ();
676 case MONO_TYPE_CLASS:
677 nativeArraySize = array->max_length;
678 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
679 for(i = 0; i < nativeArraySize; ++i)
680 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
683 case MONO_TYPE_BOOLEAN:
696 case MONO_TYPE_VALUETYPE:
700 case MONO_TYPE_GENERICINST:
701 case MONO_TYPE_OBJECT:
702 case MONO_TYPE_ARRAY:
703 case MONO_TYPE_SZARRAY:
704 case MONO_TYPE_STRING:
706 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
707 g_assert_not_reached ();
710 return array->vector;
714 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
725 klass = array->obj.vtable->klass;
727 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
728 for(i = 0; i < array->max_length; ++i)
729 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
736 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
738 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
740 if (elclass == mono_defaults.byte_class) {
741 GError *error = NULL;
745 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
748 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
752 g_error_free (error);
755 g_assert_not_reached ();
759 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
761 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
764 /* This is a JIT icall, it sets the pending exception and returns on error */
766 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
768 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
770 if (elclass == mono_defaults.byte_class) {
772 GError *error = NULL;
774 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
776 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
777 g_error_free (error);
781 memcpy (native_arr, as, MIN (strlen (as), elnum));
784 g_assert_not_reached ();
789 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
791 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
794 static MonoStringBuilder *
795 mono_string_builder_new (int starting_string_length)
797 static MonoClass *string_builder_class;
798 static MonoMethod *sb_ctor;
799 static void *args [1];
802 int initial_len = starting_string_length;
808 MonoMethodDesc *desc;
811 string_builder_class = mono_class_get_string_builder_class ();
812 g_assert (string_builder_class);
813 desc = mono_method_desc_new (":.ctor(int)", FALSE);
814 m = mono_method_desc_search_in_class (desc, string_builder_class);
816 mono_method_desc_free (desc);
817 mono_memory_barrier ();
821 // We make a new array in the _to_builder function, so this
822 // array will always be garbage collected.
823 args [0] = &initial_len;
825 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
826 mono_error_assert_ok (&error);
829 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
830 g_assert (exc == NULL);
831 mono_error_assert_ok (&error);
833 g_assert (sb->chunkChars->max_length >= initial_len);
839 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
841 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
842 gunichar2 *charSrc = (gunichar2 *)text;
843 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
845 sb->chunkLength = string_len;
851 mono_string_utf16_to_builder2 (gunichar2 *text)
857 for (len = 0; text [len] != 0; ++len);
859 MonoStringBuilder *sb = mono_string_builder_new (len);
860 mono_string_utf16_to_builder (sb, text);
866 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
871 int len = strlen (text);
872 if (len > mono_string_builder_capacity (sb))
873 len = mono_string_builder_capacity (sb);
875 GError *error = NULL;
877 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
880 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
881 mono_string_utf16_to_builder_copy (sb, ut, copied);
883 g_error_free (error);
889 mono_string_utf8_to_builder2 (char *text)
894 int len = strlen (text);
895 MonoStringBuilder *sb = mono_string_builder_new (len);
896 mono_string_utf8_to_builder (sb, text);
903 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
909 for (len = 0; text [len] != 0; ++len);
911 if (len > mono_string_builder_capacity (sb))
912 len = mono_string_builder_capacity (sb);
914 mono_string_utf16_to_builder_copy (sb, text, len);
918 * mono_string_builder_to_utf8:
919 * @sb: the string builder
921 * Converts to utf8 the contents of the MonoStringBuilder.
923 * Returns: a utf8 string with the contents of the StringBuilder.
925 * The return value must be released with g_free.
927 * This is a JIT icall, it sets the pending exception and returns NULL on error.
930 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
933 GError *gerror = NULL;
938 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
940 guint str_len = mono_string_builder_string_length (sb);
942 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
945 g_error_free (gerror);
947 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
950 guint len = mono_string_builder_capacity (sb) + 1;
951 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
952 if (!mono_error_ok (&error)) {
955 mono_error_set_pending_exception (&error);
959 g_assert (str_len < len);
960 memcpy (res, tmp, str_len * sizeof (gchar));
970 * mono_string_builder_to_utf16:
971 * @sb: the string builder
973 * Converts to utf16 the contents of the MonoStringBuilder.
975 * Returns: a utf16 string with the contents of the StringBuilder.
977 * The return value must not be freed.
978 * This is a JIT icall, it sets the pending exception and returns NULL on error.
981 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
988 g_assert (sb->chunkChars);
990 guint len = mono_string_builder_capacity (sb);
995 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
996 if (!mono_error_ok (&error)) {
997 mono_error_set_pending_exception (&error);
1006 MonoStringBuilder* chunk = sb;
1008 if (chunk->chunkLength > 0) {
1009 // Check that we will not overrun our boundaries.
1010 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1012 if (chunk->chunkLength <= len) {
1013 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1015 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1018 len -= chunk->chunkLength;
1020 chunk = chunk->chunkPrevious;
1021 } while (chunk != NULL);
1026 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1028 mono_string_to_lpstr (MonoString *s)
1033 GError *error = NULL;
1039 as = CoTaskMemAlloc (1);
1044 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1046 MonoException *exc = mono_get_exception_argument ("string", error->message);
1047 g_error_free (error);
1048 mono_set_pending_exception (exc);
1051 as = CoTaskMemAlloc (len + 1);
1052 memcpy (as, tmp, len + 1);
1057 return mono_string_to_utf8 (s);
1062 mono_string_to_ansibstr (MonoString *string_obj)
1064 g_error ("UnmanagedMarshal.BStr is not implemented.");
1069 * mono_string_to_byvalstr:
1070 * @dst: Where to store the null-terminated utf8 decoded string.
1071 * @src: the MonoString to copy.
1072 * @size: the maximum number of bytes to copy.
1074 * Copies the MonoString pointed to by @src as a utf8 string
1075 * into @dst, it copies at most @size bytes into the destination.
1078 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1083 g_assert (dst != NULL);
1084 g_assert (size > 0);
1086 memset (dst, 0, size);
1090 s = mono_string_to_utf8 (src);
1091 len = MIN (size, strlen (s));
1094 memcpy (dst, s, len);
1099 * mono_string_to_byvalwstr:
1100 * @dst: Where to store the null-terminated utf16 decoded string.
1101 * @src: the MonoString to copy.
1102 * @size: the maximum number of bytes to copy.
1104 * Copies the MonoString pointed to by @src as a utf16 string into
1105 * @dst, it copies at most @size bytes into the destination (including
1106 * a terminating 16-bit zero terminator).
1109 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1113 g_assert (dst != NULL);
1114 g_assert (size > 1);
1117 memset (dst, 0, size * 2);
1121 len = MIN (size, (mono_string_length (src)));
1122 memcpy (dst, mono_string_chars (src), size * 2);
1123 if (size <= mono_string_length (src))
1125 *((gunichar2 *) dst + len) = 0;
1129 mono_string_new_len_wrapper (const char *text, guint length)
1131 return mono_string_new_len (mono_domain_get (), text, length);
1137 * mono_mb_emit_exception_marshal_directive:
1139 * This function assumes ownership of MSG, which should be malloc-ed.
1142 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1147 s = mono_image_strdup (mb->method->klass->image, msg);
1152 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1155 #endif /* !DISABLE_JIT */
1158 mono_type_to_ldind (MonoType *type)
1164 switch (type->type) {
1166 return CEE_LDIND_I1;
1168 case MONO_TYPE_BOOLEAN:
1169 return CEE_LDIND_U1;
1171 return CEE_LDIND_I2;
1173 case MONO_TYPE_CHAR:
1174 return CEE_LDIND_U2;
1176 return CEE_LDIND_I4;
1178 return CEE_LDIND_U4;
1182 case MONO_TYPE_FNPTR:
1184 case MONO_TYPE_CLASS:
1185 case MONO_TYPE_STRING:
1186 case MONO_TYPE_OBJECT:
1187 case MONO_TYPE_SZARRAY:
1188 case MONO_TYPE_ARRAY:
1189 return CEE_LDIND_REF;
1192 return CEE_LDIND_I8;
1194 return CEE_LDIND_R4;
1196 return CEE_LDIND_R8;
1197 case MONO_TYPE_VALUETYPE:
1198 if (type->data.klass->enumtype) {
1199 type = mono_class_enum_basetype (type->data.klass);
1203 case MONO_TYPE_TYPEDBYREF:
1205 case MONO_TYPE_GENERICINST:
1206 type = &type->data.generic_class->container_class->byval_arg;
1209 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1215 mono_type_to_stind (MonoType *type)
1221 switch (type->type) {
1224 case MONO_TYPE_BOOLEAN:
1225 return CEE_STIND_I1;
1228 case MONO_TYPE_CHAR:
1229 return CEE_STIND_I2;
1232 return CEE_STIND_I4;
1236 case MONO_TYPE_FNPTR:
1238 case MONO_TYPE_CLASS:
1239 case MONO_TYPE_STRING:
1240 case MONO_TYPE_OBJECT:
1241 case MONO_TYPE_SZARRAY:
1242 case MONO_TYPE_ARRAY:
1243 return CEE_STIND_REF;
1246 return CEE_STIND_I8;
1248 return CEE_STIND_R4;
1250 return CEE_STIND_R8;
1251 case MONO_TYPE_VALUETYPE:
1252 if (type->data.klass->enumtype) {
1253 type = mono_class_enum_basetype (type->data.klass);
1257 case MONO_TYPE_TYPEDBYREF:
1259 case MONO_TYPE_GENERICINST:
1260 type = &type->data.generic_class->container_class->byval_arg;
1263 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1271 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1274 case MONO_MARSHAL_CONV_BOOL_I4:
1275 mono_mb_emit_ldloc (mb, 1);
1276 mono_mb_emit_ldloc (mb, 0);
1277 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1278 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1279 mono_mb_emit_byte (mb, 3);
1280 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1281 mono_mb_emit_byte (mb, CEE_BR_S);
1282 mono_mb_emit_byte (mb, 1);
1283 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1284 mono_mb_emit_byte (mb, CEE_STIND_I1);
1286 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1287 mono_mb_emit_ldloc (mb, 1);
1288 mono_mb_emit_ldloc (mb, 0);
1289 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1290 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1291 mono_mb_emit_byte (mb, 3);
1292 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1293 mono_mb_emit_byte (mb, CEE_BR_S);
1294 mono_mb_emit_byte (mb, 1);
1295 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1296 mono_mb_emit_byte (mb, CEE_STIND_I1);
1298 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1299 MonoClass *eklass = NULL;
1302 if (type->type == MONO_TYPE_SZARRAY) {
1303 eklass = type->data.klass;
1305 g_assert_not_reached ();
1308 esize = mono_class_native_size (eklass, NULL);
1310 /* create a new array */
1311 mono_mb_emit_ldloc (mb, 1);
1312 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1313 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1314 mono_mb_emit_byte (mb, CEE_STIND_I);
1316 if (eklass->blittable) {
1317 /* copy the elements */
1318 mono_mb_emit_ldloc (mb, 1);
1319 mono_mb_emit_byte (mb, CEE_LDIND_I);
1320 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1321 mono_mb_emit_byte (mb, CEE_ADD);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1324 mono_mb_emit_byte (mb, CEE_PREFIX1);
1325 mono_mb_emit_byte (mb, CEE_CPBLK);
1328 int array_var, src_var, dst_var, index_var;
1329 guint32 label2, label3;
1331 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1332 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1333 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1336 mono_mb_emit_ldloc (mb, 1);
1337 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1338 mono_mb_emit_stloc (mb, array_var);
1340 /* save the old src pointer */
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_stloc (mb, src_var);
1343 /* save the old dst pointer */
1344 mono_mb_emit_ldloc (mb, 1);
1345 mono_mb_emit_stloc (mb, dst_var);
1347 /* Emit marshalling loop */
1348 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1349 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1350 mono_mb_emit_stloc (mb, index_var);
1353 label2 = mono_mb_get_label (mb);
1354 mono_mb_emit_ldloc (mb, index_var);
1355 mono_mb_emit_ldloc (mb, array_var);
1356 mono_mb_emit_byte (mb, CEE_LDLEN);
1357 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1359 /* src is already set */
1362 mono_mb_emit_ldloc (mb, array_var);
1363 mono_mb_emit_ldloc (mb, index_var);
1364 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1365 mono_mb_emit_stloc (mb, 1);
1367 /* Do the conversion */
1368 emit_struct_conv (mb, eklass, TRUE);
1371 mono_mb_emit_add_to_local (mb, index_var, 1);
1373 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1375 mono_mb_patch_branch (mb, label3);
1377 /* restore the old src pointer */
1378 mono_mb_emit_ldloc (mb, src_var);
1379 mono_mb_emit_stloc (mb, 0);
1380 /* restore the old dst pointer */
1381 mono_mb_emit_ldloc (mb, dst_var);
1382 mono_mb_emit_stloc (mb, 1);
1386 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1387 MonoClass *eclass = mono_defaults.char_class;
1389 /* create a new array */
1390 mono_mb_emit_ldloc (mb, 1);
1391 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1392 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1393 mono_mb_emit_byte (mb, CEE_STIND_REF);
1395 mono_mb_emit_ldloc (mb, 1);
1396 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1397 mono_mb_emit_ldloc (mb, 0);
1398 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1399 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1402 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1403 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1404 mono_mb_emit_ldloc (mb, 1);
1405 mono_mb_emit_ldloc (mb, 0);
1406 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1407 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1409 mono_mb_emit_ldloc (mb, 1);
1410 mono_mb_emit_ldloc (mb, 0);
1411 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1413 mono_mb_emit_byte (mb, CEE_STIND_REF);
1415 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1416 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1417 mono_mb_emit_ldloc (mb, 1);
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_string_from_byvalwstr);
1422 mono_mb_emit_ldloc (mb, 1);
1423 mono_mb_emit_ldloc (mb, 0);
1424 mono_mb_emit_icall (mb, mono_string_from_utf16);
1426 mono_mb_emit_byte (mb, CEE_STIND_REF);
1428 case MONO_MARSHAL_CONV_STR_LPTSTR:
1429 mono_mb_emit_ldloc (mb, 1);
1430 mono_mb_emit_ldloc (mb, 0);
1431 mono_mb_emit_byte (mb, CEE_LDIND_I);
1433 mono_mb_emit_icall (mb, mono_string_from_utf16);
1435 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1437 mono_mb_emit_byte (mb, CEE_STIND_REF);
1439 case MONO_MARSHAL_CONV_STR_LPSTR:
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_byte (mb, CEE_LDIND_I);
1443 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1444 mono_mb_emit_byte (mb, CEE_STIND_REF);
1446 case MONO_MARSHAL_CONV_STR_LPWSTR:
1447 mono_mb_emit_ldloc (mb, 1);
1448 mono_mb_emit_ldloc (mb, 0);
1449 mono_mb_emit_byte (mb, CEE_LDIND_I);
1450 mono_mb_emit_icall (mb, mono_string_from_utf16);
1451 mono_mb_emit_byte (mb, CEE_STIND_REF);
1453 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1454 MonoClass *klass = mono_class_from_mono_type (type);
1455 int src_var, dst_var;
1457 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1458 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1460 /* *dst = new object */
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1463 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1464 mono_mb_emit_byte (mb, CEE_STIND_REF);
1466 /* save the old src pointer */
1467 mono_mb_emit_ldloc (mb, 0);
1468 mono_mb_emit_stloc (mb, src_var);
1469 /* save the old dst pointer */
1470 mono_mb_emit_ldloc (mb, 1);
1471 mono_mb_emit_stloc (mb, dst_var);
1473 /* dst = pointer to newly created object data */
1474 mono_mb_emit_ldloc (mb, 1);
1475 mono_mb_emit_byte (mb, CEE_LDIND_I);
1476 mono_mb_emit_icon (mb, sizeof (MonoObject));
1477 mono_mb_emit_byte (mb, CEE_ADD);
1478 mono_mb_emit_stloc (mb, 1);
1480 emit_struct_conv (mb, klass, TRUE);
1482 /* restore the old src pointer */
1483 mono_mb_emit_ldloc (mb, src_var);
1484 mono_mb_emit_stloc (mb, 0);
1485 /* restore the old dst pointer */
1486 mono_mb_emit_ldloc (mb, dst_var);
1487 mono_mb_emit_stloc (mb, 1);
1490 case MONO_MARSHAL_CONV_DEL_FTN: {
1491 MonoClass *klass = mono_class_from_mono_type (type);
1493 mono_mb_emit_ldloc (mb, 1);
1494 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1495 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1496 mono_mb_emit_ldloc (mb, 0);
1497 mono_mb_emit_byte (mb, CEE_LDIND_I);
1498 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1499 mono_mb_emit_byte (mb, CEE_STIND_REF);
1502 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1503 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1507 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1508 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1509 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1510 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1512 #endif /* DISABLE_COM */
1514 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1516 * Passing SafeHandles as ref does not allow the unmanaged code
1517 * to change the SafeHandle value. If the value is changed,
1518 * we should issue a diagnostic exception (NotSupportedException)
1519 * that informs the user that changes to handles in unmanaged code
1522 * Since we currently have no access to the original
1523 * SafeHandle that was used during the marshalling,
1524 * for now we just ignore this, and ignore/discard any
1525 * changes that might have happened to the handle.
1530 case MONO_MARSHAL_CONV_HANDLEREF: {
1532 * Passing HandleRefs in a struct that is ref()ed does not
1533 * copy the values back to the HandleRef
1538 case MONO_MARSHAL_CONV_STR_BSTR:
1539 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1540 case MONO_MARSHAL_CONV_STR_TBSTR:
1541 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1543 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1545 mono_mb_emit_exception_marshal_directive (mb, msg);
1552 conv_to_icall (MonoMarshalConv conv)
1555 case MONO_MARSHAL_CONV_STR_LPWSTR:
1556 return mono_marshal_string_to_utf16;
1557 case MONO_MARSHAL_CONV_LPWSTR_STR:
1558 return mono_string_from_utf16;
1559 case MONO_MARSHAL_CONV_LPTSTR_STR:
1560 return mono_string_new_wrapper;
1561 case MONO_MARSHAL_CONV_LPSTR_STR:
1562 return mono_string_new_wrapper;
1563 case MONO_MARSHAL_CONV_STR_LPTSTR:
1565 return mono_marshal_string_to_utf16;
1567 return mono_string_to_lpstr;
1569 case MONO_MARSHAL_CONV_STR_LPSTR:
1570 return mono_string_to_lpstr;
1571 case MONO_MARSHAL_CONV_STR_BSTR:
1572 return mono_string_to_bstr;
1573 case MONO_MARSHAL_CONV_BSTR_STR:
1574 return mono_string_from_bstr;
1575 case MONO_MARSHAL_CONV_STR_TBSTR:
1576 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1577 return mono_string_to_ansibstr;
1578 case MONO_MARSHAL_CONV_SB_LPSTR:
1579 return mono_string_builder_to_utf8;
1580 case MONO_MARSHAL_CONV_SB_LPTSTR:
1582 return mono_string_builder_to_utf16;
1584 return mono_string_builder_to_utf8;
1586 case MONO_MARSHAL_CONV_SB_LPWSTR:
1587 return mono_string_builder_to_utf16;
1588 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1589 return mono_array_to_savearray;
1590 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1591 return mono_array_to_lparray;
1592 case MONO_MARSHAL_FREE_LPARRAY:
1593 return mono_free_lparray;
1594 case MONO_MARSHAL_CONV_DEL_FTN:
1595 return mono_delegate_to_ftnptr;
1596 case MONO_MARSHAL_CONV_FTN_DEL:
1597 return mono_ftnptr_to_delegate;
1598 case MONO_MARSHAL_CONV_LPSTR_SB:
1599 return mono_string_utf8_to_builder;
1600 case MONO_MARSHAL_CONV_LPTSTR_SB:
1602 return mono_string_utf16_to_builder;
1604 return mono_string_utf8_to_builder;
1606 case MONO_MARSHAL_CONV_LPWSTR_SB:
1607 return mono_string_utf16_to_builder;
1608 case MONO_MARSHAL_FREE_ARRAY:
1609 return mono_marshal_free_array;
1610 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1611 return mono_string_to_byvalstr;
1612 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1613 return mono_string_to_byvalwstr;
1615 g_assert_not_reached ();
1622 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1627 case MONO_MARSHAL_CONV_BOOL_I4:
1628 mono_mb_emit_ldloc (mb, 1);
1629 mono_mb_emit_ldloc (mb, 0);
1630 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1631 mono_mb_emit_byte (mb, CEE_STIND_I4);
1633 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1634 mono_mb_emit_ldloc (mb, 1);
1635 mono_mb_emit_ldloc (mb, 0);
1636 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1637 mono_mb_emit_byte (mb, CEE_NEG);
1638 mono_mb_emit_byte (mb, CEE_STIND_I2);
1640 case MONO_MARSHAL_CONV_STR_LPWSTR:
1641 case MONO_MARSHAL_CONV_STR_LPSTR:
1642 case MONO_MARSHAL_CONV_STR_LPTSTR:
1643 case MONO_MARSHAL_CONV_STR_BSTR:
1644 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1645 case MONO_MARSHAL_CONV_STR_TBSTR: {
1648 /* free space if free == true */
1649 mono_mb_emit_ldloc (mb, 2);
1650 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1651 mono_mb_emit_ldloc (mb, 1);
1652 mono_mb_emit_byte (mb, CEE_LDIND_I);
1653 mono_mb_emit_icall (mb, g_free);
1654 mono_mb_patch_short_branch (mb, pos);
1656 mono_mb_emit_ldloc (mb, 1);
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1659 mono_mb_emit_icall (mb, conv_to_icall (conv));
1660 mono_mb_emit_byte (mb, CEE_STIND_I);
1663 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1664 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1665 case MONO_MARSHAL_CONV_DEL_FTN:
1666 mono_mb_emit_ldloc (mb, 1);
1667 mono_mb_emit_ldloc (mb, 0);
1668 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1669 mono_mb_emit_icall (mb, conv_to_icall (conv));
1670 mono_mb_emit_byte (mb, CEE_STIND_I);
1672 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1673 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1676 mono_mb_emit_ldloc (mb, 1); /* dst */
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1679 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1680 mono_mb_emit_icall (mb, conv_to_icall (conv));
1683 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1684 MonoClass *eklass = NULL;
1687 if (type->type == MONO_TYPE_SZARRAY) {
1688 eklass = type->data.klass;
1690 g_assert_not_reached ();
1693 if (eklass->valuetype)
1694 esize = mono_class_native_size (eklass, NULL);
1696 esize = sizeof (gpointer);
1698 mono_mb_emit_ldloc (mb, 0);
1699 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1700 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1702 if (eklass->blittable) {
1703 mono_mb_emit_ldloc (mb, 1);
1704 mono_mb_emit_ldloc (mb, 0);
1705 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1706 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1707 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1708 mono_mb_emit_byte (mb, CEE_PREFIX1);
1709 mono_mb_emit_byte (mb, CEE_CPBLK);
1711 int array_var, src_var, dst_var, index_var;
1712 guint32 label2, label3;
1714 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1715 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1716 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1719 mono_mb_emit_ldloc (mb, 0);
1720 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1721 mono_mb_emit_stloc (mb, array_var);
1723 /* save the old src pointer */
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_stloc (mb, src_var);
1726 /* save the old dst pointer */
1727 mono_mb_emit_ldloc (mb, 1);
1728 mono_mb_emit_stloc (mb, dst_var);
1730 /* Emit marshalling loop */
1731 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1732 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1733 mono_mb_emit_stloc (mb, index_var);
1736 label2 = mono_mb_get_label (mb);
1737 mono_mb_emit_ldloc (mb, index_var);
1738 mono_mb_emit_ldloc (mb, array_var);
1739 mono_mb_emit_byte (mb, CEE_LDLEN);
1740 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1743 mono_mb_emit_ldloc (mb, array_var);
1744 mono_mb_emit_ldloc (mb, index_var);
1745 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1746 mono_mb_emit_stloc (mb, 0);
1748 /* dst is already set */
1750 /* Do the conversion */
1751 emit_struct_conv (mb, eklass, FALSE);
1754 mono_mb_emit_add_to_local (mb, index_var, 1);
1756 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1758 mono_mb_patch_branch (mb, label3);
1760 /* restore the old src pointer */
1761 mono_mb_emit_ldloc (mb, src_var);
1762 mono_mb_emit_stloc (mb, 0);
1763 /* restore the old dst pointer */
1764 mono_mb_emit_ldloc (mb, dst_var);
1765 mono_mb_emit_stloc (mb, 1);
1768 mono_mb_patch_branch (mb, pos);
1771 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1774 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1776 mono_mb_emit_ldloc (mb, 1);
1777 mono_mb_emit_ldloc (mb, 0);
1778 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1779 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1780 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1781 mono_mb_patch_short_branch (mb, pos);
1784 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1785 int src_var, dst_var;
1787 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1788 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1790 mono_mb_emit_ldloc (mb, 0);
1791 mono_mb_emit_byte (mb, CEE_LDIND_I);
1792 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1794 /* save the old src pointer */
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_stloc (mb, src_var);
1797 /* save the old dst pointer */
1798 mono_mb_emit_ldloc (mb, 1);
1799 mono_mb_emit_stloc (mb, dst_var);
1801 /* src = pointer to object data */
1802 mono_mb_emit_ldloc (mb, 0);
1803 mono_mb_emit_byte (mb, CEE_LDIND_I);
1804 mono_mb_emit_icon (mb, sizeof (MonoObject));
1805 mono_mb_emit_byte (mb, CEE_ADD);
1806 mono_mb_emit_stloc (mb, 0);
1808 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1810 /* restore the old src pointer */
1811 mono_mb_emit_ldloc (mb, src_var);
1812 mono_mb_emit_stloc (mb, 0);
1813 /* restore the old dst pointer */
1814 mono_mb_emit_ldloc (mb, dst_var);
1815 mono_mb_emit_stloc (mb, 1);
1817 mono_mb_patch_branch (mb, pos);
1822 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1823 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1824 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1825 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1827 #endif /* DISABLE_COM */
1829 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1832 mono_mb_emit_ldloc (mb, 0);
1833 mono_mb_emit_byte (mb, CEE_LDIND_I);
1834 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1835 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1836 mono_mb_patch_branch (mb, pos);
1838 /* Pull the handle field from SafeHandle */
1839 mono_mb_emit_ldloc (mb, 1);
1840 mono_mb_emit_ldloc (mb, 0);
1841 mono_mb_emit_byte (mb, CEE_LDIND_I);
1842 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1843 mono_mb_emit_byte (mb, CEE_LDIND_I);
1844 mono_mb_emit_byte (mb, CEE_STIND_I);
1848 case MONO_MARSHAL_CONV_HANDLEREF: {
1849 mono_mb_emit_ldloc (mb, 1);
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1852 mono_mb_emit_byte (mb, CEE_ADD);
1853 mono_mb_emit_byte (mb, CEE_LDIND_I);
1854 mono_mb_emit_byte (mb, CEE_STIND_I);
1859 g_error ("marshalling conversion %d not implemented", conv);
1865 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1866 MonoMarshalNative string_encoding)
1868 MonoMarshalType *info;
1872 emit_struct_conv(mb, klass->parent, to_object);
1874 info = mono_marshal_load_type_info (klass);
1876 if (info->native_size == 0)
1879 if (klass->blittable) {
1880 int msize = mono_class_value_size (klass, NULL);
1881 g_assert (msize == info->native_size);
1882 mono_mb_emit_ldloc (mb, 1);
1883 mono_mb_emit_ldloc (mb, 0);
1884 mono_mb_emit_icon (mb, msize);
1885 mono_mb_emit_byte (mb, CEE_PREFIX1);
1886 mono_mb_emit_byte (mb, CEE_CPBLK);
1888 mono_mb_emit_add_to_local (mb, 0, msize);
1889 mono_mb_emit_add_to_local (mb, 1, msize);
1893 if (klass != mono_class_try_get_safehandle_class ()) {
1894 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1895 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1896 mono_type_full_name (&klass->byval_arg));
1897 mono_mb_emit_exception_marshal_directive (mb, msg);
1902 for (i = 0; i < info->num_fields; i++) {
1903 MonoMarshalNative ntype;
1904 MonoMarshalConv conv;
1905 MonoType *ftype = info->fields [i].field->type;
1908 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1910 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1913 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1916 msize = klass->instance_size - info->fields [i].field->offset;
1917 usize = info->native_size - info->fields [i].offset;
1919 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1920 usize = info->fields [i + 1].offset - info->fields [i].offset;
1923 if (klass != mono_class_try_get_safehandle_class ()){
1925 * FIXME: Should really check for usize==0 and msize>0, but we apply
1926 * the layout to the managed structure as well.
1929 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1930 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1931 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1932 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1933 "reference field at the same offset as another field.",
1934 mono_type_full_name (&klass->byval_arg));
1939 case MONO_MARSHAL_CONV_NONE: {
1942 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1943 ftype->type == MONO_TYPE_U) {
1944 mono_mb_emit_ldloc (mb, 1);
1945 mono_mb_emit_ldloc (mb, 0);
1946 mono_mb_emit_byte (mb, CEE_LDIND_I);
1947 mono_mb_emit_byte (mb, CEE_STIND_I);
1958 case MONO_TYPE_BOOLEAN:
1961 case MONO_TYPE_CHAR:
1967 mono_mb_emit_ldloc (mb, 1);
1968 mono_mb_emit_ldloc (mb, 0);
1969 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1971 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1972 mono_mb_emit_byte (mb, CEE_STIND_I2);
1974 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1975 mono_mb_emit_byte (mb, CEE_STIND_I1);
1978 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1979 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1982 case MONO_TYPE_VALUETYPE: {
1983 int src_var, dst_var;
1985 if (ftype->data.klass->enumtype) {
1986 ftype = mono_class_enum_basetype (ftype->data.klass);
1990 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1991 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1993 /* save the old src pointer */
1994 mono_mb_emit_ldloc (mb, 0);
1995 mono_mb_emit_stloc (mb, src_var);
1996 /* save the old dst pointer */
1997 mono_mb_emit_ldloc (mb, 1);
1998 mono_mb_emit_stloc (mb, dst_var);
2000 emit_struct_conv (mb, ftype->data.klass, to_object);
2002 /* restore the old src pointer */
2003 mono_mb_emit_ldloc (mb, src_var);
2004 mono_mb_emit_stloc (mb, 0);
2005 /* restore the old dst pointer */
2006 mono_mb_emit_ldloc (mb, dst_var);
2007 mono_mb_emit_stloc (mb, 1);
2010 case MONO_TYPE_OBJECT: {
2013 static MonoMethod *variant_clear = NULL;
2014 static MonoMethod *get_object_for_native_variant = NULL;
2017 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2018 if (!get_object_for_native_variant)
2019 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2020 mono_mb_emit_ldloc (mb, 1);
2021 mono_mb_emit_ldloc (mb, 0);
2022 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2023 mono_mb_emit_byte (mb, CEE_STIND_REF);
2025 mono_mb_emit_ldloc (mb, 0);
2026 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2029 static MonoMethod *get_native_variant_for_object = NULL;
2031 if (!get_native_variant_for_object)
2032 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2034 mono_mb_emit_ldloc (mb, 0);
2035 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2036 mono_mb_emit_ldloc (mb, 1);
2037 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2040 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2041 mono_mb_emit_exception_marshal_directive (mb, msg);
2047 g_warning ("marshaling type %02x not implemented", ftype->type);
2048 g_assert_not_reached ();
2053 int src_var, dst_var;
2055 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2056 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2058 /* save the old src pointer */
2059 mono_mb_emit_ldloc (mb, 0);
2060 mono_mb_emit_stloc (mb, src_var);
2061 /* save the old dst pointer */
2062 mono_mb_emit_ldloc (mb, 1);
2063 mono_mb_emit_stloc (mb, dst_var);
2066 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2068 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2070 /* restore the old src pointer */
2071 mono_mb_emit_ldloc (mb, src_var);
2072 mono_mb_emit_stloc (mb, 0);
2073 /* restore the old dst pointer */
2074 mono_mb_emit_ldloc (mb, dst_var);
2075 mono_mb_emit_stloc (mb, 1);
2080 mono_mb_emit_add_to_local (mb, 0, usize);
2081 mono_mb_emit_add_to_local (mb, 1, msize);
2083 mono_mb_emit_add_to_local (mb, 0, msize);
2084 mono_mb_emit_add_to_local (mb, 1, usize);
2090 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2092 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2096 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2098 /* Call DestroyStructure */
2099 /* FIXME: Only do this if needed */
2100 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2101 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2102 mono_mb_emit_ldloc (mb, struct_var);
2103 mono_mb_emit_icall (mb, mono_struct_delete_old);
2107 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2109 int pos_noabort, pos_noex;
2111 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2112 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2113 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2114 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2116 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2117 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2119 mono_mb_emit_icall (mb, checkpoint_func);
2120 /* Throw the exception returned by the checkpoint function, if any */
2121 mono_mb_emit_byte (mb, CEE_DUP);
2122 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2123 mono_mb_emit_byte (mb, CEE_THROW);
2124 mono_mb_patch_branch (mb, pos_noex);
2125 mono_mb_emit_byte (mb, CEE_POP);
2127 mono_mb_patch_branch (mb, pos_noabort);
2131 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2133 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2136 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2140 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2142 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2146 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2148 emit_thread_interrupt_checkpoint (mb);
2152 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2154 emit_thread_force_interrupt_checkpoint (mb);
2157 #endif /* DISABLE_JIT */
2159 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2160 static MonoAsyncResult *
2161 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2164 MonoMulticastDelegate *mcast_delegate;
2168 g_assert (delegate);
2169 mcast_delegate = (MonoMulticastDelegate *) delegate;
2170 if (mcast_delegate->delegates != NULL) {
2171 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2175 #ifndef DISABLE_REMOTING
2176 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2177 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2178 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2179 /* If the target is a proxy, make a direct call. Is proxy's work
2180 // to make the call asynchronous.
2182 MonoMethodMessage *msg;
2183 MonoDelegate *async_callback;
2185 MonoAsyncResult *ares;
2187 MonoArray *out_args;
2188 method = delegate->method;
2190 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2191 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2192 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2193 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2194 MONO_OBJECT_SETREF (msg, async_result, ares);
2195 msg->call_type = CallType_BeginInvoke;
2198 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2199 if (!mono_error_ok (&error)) {
2200 mono_error_set_pending_exception (&error);
2204 mono_set_pending_exception ((MonoException *) exc);
2210 klass = delegate->object.vtable->klass;
2212 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2214 method = mono_get_delegate_invoke (klass);
2217 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2218 mono_error_set_pending_exception (&error);
2225 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2227 int i, params_var, tmp_var;
2229 /* allocate local (pointer) *params[] */
2230 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2231 /* allocate local (pointer) tmp */
2232 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2234 /* alloate space on stack to store an array of pointers to the arguments */
2235 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2236 mono_mb_emit_byte (mb, CEE_PREFIX1);
2237 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2238 mono_mb_emit_stloc (mb, params_var);
2241 mono_mb_emit_ldloc (mb, params_var);
2242 mono_mb_emit_stloc (mb, tmp_var);
2244 if (save_this && sig->hasthis) {
2245 mono_mb_emit_ldloc (mb, tmp_var);
2246 mono_mb_emit_ldarg_addr (mb, 0);
2247 mono_mb_emit_byte (mb, CEE_STIND_I);
2248 /* tmp = tmp + sizeof (gpointer) */
2249 if (sig->param_count)
2250 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2254 for (i = 0; i < sig->param_count; i++) {
2255 mono_mb_emit_ldloc (mb, tmp_var);
2256 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2257 mono_mb_emit_byte (mb, CEE_STIND_I);
2258 /* tmp = tmp + sizeof (gpointer) */
2259 if (i < (sig->param_count - 1))
2260 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2266 #endif /* DISABLE_JIT */
2269 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2273 GString *res = g_string_new ("");
2276 g_string_append (res, prefix);
2277 g_string_append_c (res, '_');
2280 mono_type_get_desc (res, sig->ret, FALSE);
2283 g_string_append (res, "__this__");
2285 for (i = 0; i < sig->param_count; ++i) {
2286 g_string_append_c (res, '_');
2287 mono_type_get_desc (res, sig->params [i], FALSE);
2290 g_string_free (res, FALSE);
2295 * mono_marshal_get_string_encoding:
2297 * Return the string encoding which should be used for a given parameter.
2299 static MonoMarshalNative
2300 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2302 /* First try the parameter marshal info */
2304 if (spec->native == MONO_NATIVE_LPARRAY) {
2305 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2306 return spec->data.array_data.elem_type;
2309 return spec->native;
2313 return MONO_NATIVE_LPSTR;
2315 /* Then try the method level marshal info */
2316 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2317 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2318 return MONO_NATIVE_LPSTR;
2319 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2320 return MONO_NATIVE_LPWSTR;
2321 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2323 return MONO_NATIVE_LPWSTR;
2325 return MONO_NATIVE_LPSTR;
2328 return MONO_NATIVE_LPSTR;
2332 static MonoMarshalConv
2333 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2335 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2338 case MONO_NATIVE_LPWSTR:
2339 return MONO_MARSHAL_CONV_STR_LPWSTR;
2340 case MONO_NATIVE_LPSTR:
2341 case MONO_NATIVE_VBBYREFSTR:
2342 return MONO_MARSHAL_CONV_STR_LPSTR;
2343 case MONO_NATIVE_LPTSTR:
2344 return MONO_MARSHAL_CONV_STR_LPTSTR;
2345 case MONO_NATIVE_BSTR:
2346 return MONO_MARSHAL_CONV_STR_BSTR;
2348 return (MonoMarshalConv)-1;
2352 static MonoMarshalConv
2353 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2355 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2358 case MONO_NATIVE_LPWSTR:
2359 return MONO_MARSHAL_CONV_SB_LPWSTR;
2361 case MONO_NATIVE_LPSTR:
2362 return MONO_MARSHAL_CONV_SB_LPSTR;
2364 case MONO_NATIVE_LPTSTR:
2365 return MONO_MARSHAL_CONV_SB_LPTSTR;
2368 return (MonoMarshalConv)-1;
2372 static MonoMarshalConv
2373 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2375 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2380 case MONO_NATIVE_LPWSTR:
2382 return MONO_MARSHAL_CONV_LPWSTR_STR;
2383 case MONO_NATIVE_LPSTR:
2384 case MONO_NATIVE_VBBYREFSTR:
2385 return MONO_MARSHAL_CONV_LPSTR_STR;
2386 case MONO_NATIVE_LPTSTR:
2387 return MONO_MARSHAL_CONV_LPTSTR_STR;
2388 case MONO_NATIVE_BSTR:
2389 return MONO_MARSHAL_CONV_BSTR_STR;
2391 return (MonoMarshalConv)-1;
2395 static MonoMarshalConv
2396 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2398 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2403 case MONO_NATIVE_LPWSTR:
2405 * mono_string_builder_to_utf16 does not allocate a
2406 * new buffer, so no need to free it.
2409 return MONO_MARSHAL_CONV_LPWSTR_SB;
2410 case MONO_NATIVE_LPSTR:
2411 return MONO_MARSHAL_CONV_LPSTR_SB;
2413 case MONO_NATIVE_LPTSTR:
2414 return MONO_MARSHAL_CONV_LPTSTR_SB;
2417 return (MonoMarshalConv)-1;
2422 * Return whenever a field of a native structure or an array member needs to
2426 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2428 MonoMarshalNative encoding;
2431 case MONO_TYPE_VALUETYPE:
2432 /* FIXME: Optimize this */
2434 case MONO_TYPE_OBJECT:
2435 case MONO_TYPE_CLASS:
2436 if (t->data.klass == mono_defaults.stringbuilder_class) {
2438 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2442 case MONO_TYPE_STRING:
2443 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2444 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2451 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2454 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2457 mono_marshal_lock ();
2460 g_hash_table_new (hash_func, equal_func);
2461 mono_memory_barrier ();
2464 mono_marshal_unlock ();
2470 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2472 return get_cache (var, hash_func, equal_func);
2476 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2480 mono_marshal_lock ();
2481 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2482 mono_marshal_unlock ();
2489 * Create a MonoMethod from MB, set INFO as wrapper info.
2492 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2493 int max_stack, WrapperInfo *info)
2497 res = mono_mb_create_method (mb, sig, max_stack);
2499 mono_marshal_set_wrapper_info (res, info);
2503 /* Create the method from the builder and place it in the cache */
2505 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2506 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2507 int max_stack, WrapperInfo *info, gboolean *out_found)
2514 mono_marshal_lock ();
2515 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2516 mono_marshal_unlock ();
2519 newm = mono_mb_create_method (mb, sig, max_stack);
2520 mono_marshal_lock ();
2521 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2524 g_hash_table_insert (cache, key, res);
2525 mono_marshal_set_wrapper_info (res, info);
2526 mono_marshal_unlock ();
2530 mono_marshal_unlock ();
2531 mono_free_method (newm);
2539 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2540 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2543 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2547 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2550 int wrapper_type = wrapper->wrapper_type;
2553 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2556 info = mono_marshal_get_wrapper_info (wrapper);
2558 switch (wrapper_type) {
2559 case MONO_WRAPPER_REMOTING_INVOKE:
2560 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2561 case MONO_WRAPPER_XDOMAIN_INVOKE:
2562 m = info->d.remoting.method;
2563 if (wrapper->is_inflated) {
2567 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2568 * contains an uninflated method.
2570 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2571 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2575 case MONO_WRAPPER_SYNCHRONIZED:
2576 m = info->d.synchronized.method;
2577 if (wrapper->is_inflated) {
2580 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2581 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2585 case MONO_WRAPPER_UNBOX:
2586 return info->d.unbox.method;
2587 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2588 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2589 return info->d.managed_to_native.method;
2592 case MONO_WRAPPER_RUNTIME_INVOKE:
2593 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2594 return info->d.runtime_invoke.method;
2603 * mono_marshal_get_wrapper_info:
2605 * Retrieve the WrapperInfo structure associated with WRAPPER.
2608 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2610 g_assert (wrapper->wrapper_type);
2612 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2616 * mono_marshal_set_wrapper_info:
2618 * Set the WrapperInfo structure associated with the wrapper
2619 * method METHOD to INFO.
2622 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2626 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2629 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2634 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2638 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2639 info->subtype = subtype;
2644 * get_wrapper_target_class:
2646 * Return the class where a wrapper method should be placed.
2649 get_wrapper_target_class (MonoImage *image)
2656 * - can't put all wrappers into an mscorlib class, because they reference
2657 * metadata (signature) so they should be put into the same image as the
2658 * method they wrap, so they are unloaded together.
2659 * - putting them into a class with a type initalizer could cause the
2660 * initializer to be executed which can be a problem if the wrappers are
2662 * - putting them into an inflated class can cause problems if the the
2663 * class is deleted because it references an image which is unloaded.
2664 * To avoid these problems, we put the wrappers into the <Module> class of
2667 if (image_is_dynamic (image)) {
2668 klass = ((MonoDynamicImage*)image)->wrappers_type;
2670 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2671 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2679 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2680 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2684 * check_generic_wrapper_cache:
2686 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2687 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2688 * generic method definition.
2691 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2694 MonoMethod *inst, *def;
2695 MonoGenericContext *ctx;
2697 g_assert (orig_method->is_inflated);
2698 ctx = mono_method_get_context (orig_method);
2701 * Look for the instance
2703 res = mono_marshal_find_in_cache (cache, key);
2708 * Look for the definition
2710 def = mono_marshal_find_in_cache (cache, def_key);
2713 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2714 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2716 mono_memory_barrier ();
2717 mono_marshal_lock ();
2718 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2720 g_hash_table_insert (cache, key, inst);
2723 mono_marshal_unlock ();
2730 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2733 MonoMethod *inst, *res;
2736 * We use the same cache for the generic definition and the instances.
2738 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2739 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2740 mono_memory_barrier ();
2741 mono_marshal_lock ();
2742 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2744 g_hash_table_insert (cache, key, inst);
2747 mono_marshal_unlock ();
2752 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2756 MonoMethod *inst, *def;
2759 * Look for the instance
2761 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2766 * Look for the definition
2768 def = mono_marshal_find_in_cache (cache, def_method->klass);
2770 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2771 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2774 mono_memory_barrier ();
2775 mono_marshal_lock ();
2776 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2778 g_hash_table_insert (cache, orig_method->klass, inst);
2781 mono_marshal_unlock ();
2788 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2791 MonoMethod *inst, *res;
2794 * We use the same cache for the generic definition and the instances.
2796 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2797 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2799 mono_memory_barrier ();
2800 mono_marshal_lock ();
2801 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2803 g_hash_table_insert (cache, orig_method->klass, inst);
2806 mono_marshal_unlock ();
2811 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2813 MonoMethodSignature *sig;
2814 MonoMethodBuilder *mb;
2819 MonoGenericContext *ctx = NULL;
2820 MonoMethod *orig_method = NULL;
2822 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2823 !strcmp (method->name, "BeginInvoke"));
2826 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2828 if (method->is_inflated) {
2829 orig_method = method;
2830 ctx = &((MonoMethodInflated*)method)->context;
2831 method = ((MonoMethodInflated*)method)->declaring;
2834 sig = mono_signature_no_pinvoke (method);
2840 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2841 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2845 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2846 (GHashFunc)mono_signature_hash,
2847 (GCompareFunc)mono_metadata_signature_equal);
2848 if ((res = mono_marshal_find_in_cache (cache, sig)))
2852 g_assert (sig->hasthis);
2854 name = mono_signature_to_name (sig, "begin_invoke");
2856 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2858 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2862 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2864 mono_mb_emit_ldarg (mb, 0);
2865 mono_mb_emit_ldloc (mb, params_var);
2866 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2867 mono_mb_emit_byte (mb, CEE_RET);
2872 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2873 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2875 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2882 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2884 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2887 MonoDomain *domain = mono_domain_get ();
2888 MonoAsyncResult *ares;
2889 MonoMethod *method = NULL;
2890 MonoMethodSignature *sig;
2891 MonoMethodMessage *msg;
2892 MonoObject *res, *exc;
2893 MonoArray *out_args;
2896 g_assert (delegate);
2898 if (!delegate->method_info) {
2899 g_assert (delegate->method);
2900 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2901 if (!mono_error_ok (&error)) {
2902 mono_error_set_pending_exception (&error);
2905 MONO_OBJECT_SETREF (delegate, method_info, rm);
2908 if (!delegate->method_info || !delegate->method_info->method)
2909 g_assert_not_reached ();
2911 klass = delegate->object.vtable->klass;
2913 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2914 g_assert (method != NULL);
2916 sig = mono_signature_no_pinvoke (method);
2918 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2920 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2922 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."));
2926 if (ares->async_delegate != (MonoObject*)delegate) {
2927 mono_set_pending_exception (mono_get_exception_invalid_operation (
2928 "The IAsyncResult object provided does not match this delegate."));
2932 #ifndef DISABLE_REMOTING
2933 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2934 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2935 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2936 if (!mono_error_ok (&error)) {
2937 mono_error_set_pending_exception (&error);
2940 mono_message_init (domain, msg, delegate->method_info, NULL);
2941 msg->call_type = CallType_EndInvoke;
2942 MONO_OBJECT_SETREF (msg, async_result, ares);
2943 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2944 if (!mono_error_ok (&error)) {
2945 mono_error_set_pending_exception (&error);
2951 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2955 if (((MonoException*)exc)->stack_trace) {
2956 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2958 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2960 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2963 mono_set_pending_exception ((MonoException*)exc);
2966 mono_method_return_message_restore (method, params, out_args);
2973 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2975 MonoType *t = mono_type_get_underlying_type (return_type);
2977 if (return_type->byref)
2978 return_type = &mono_defaults.int_class->byval_arg;
2981 case MONO_TYPE_VOID:
2982 g_assert_not_reached ();
2985 case MONO_TYPE_STRING:
2986 case MONO_TYPE_CLASS:
2987 case MONO_TYPE_OBJECT:
2988 case MONO_TYPE_ARRAY:
2989 case MONO_TYPE_SZARRAY:
2993 case MONO_TYPE_BOOLEAN:
2996 case MONO_TYPE_CHAR:
3006 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3007 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3009 case MONO_TYPE_GENERICINST:
3010 if (!mono_type_generic_inst_is_valuetype (t))
3013 case MONO_TYPE_VALUETYPE: {
3014 MonoClass *klass = mono_class_from_mono_type (return_type);
3015 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3016 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3020 case MONO_TYPE_MVAR: {
3021 MonoClass *klass = mono_class_from_mono_type (return_type);
3022 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3026 g_warning ("type 0x%x not handled", return_type->type);
3027 g_assert_not_reached ();
3030 mono_mb_emit_byte (mb, CEE_RET);
3033 #endif /* DISABLE_JIT */
3036 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3038 MonoMethodSignature *sig;
3039 MonoMethodBuilder *mb;
3044 MonoGenericContext *ctx = NULL;
3045 MonoMethod *orig_method = NULL;
3047 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3048 !strcmp (method->name, "EndInvoke"));
3051 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3053 if (method->is_inflated) {
3054 orig_method = method;
3055 ctx = &((MonoMethodInflated*)method)->context;
3056 method = ((MonoMethodInflated*)method)->declaring;
3059 sig = mono_signature_no_pinvoke (method);
3065 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3066 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3070 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3071 (GHashFunc)mono_signature_hash,
3072 (GCompareFunc)mono_metadata_signature_equal);
3073 if ((res = mono_marshal_find_in_cache (cache, sig)))
3077 g_assert (sig->hasthis);
3079 name = mono_signature_to_name (sig, "end_invoke");
3081 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3083 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3087 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3089 mono_mb_emit_ldarg (mb, 0);
3090 mono_mb_emit_ldloc (mb, params_var);
3091 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3093 if (sig->ret->type == MONO_TYPE_VOID) {
3094 mono_mb_emit_byte (mb, CEE_POP);
3095 mono_mb_emit_byte (mb, CEE_RET);
3097 mono_mb_emit_restore_result (mb, sig->ret);
3102 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3103 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3105 res = mono_mb_create_and_cache (cache, sig,
3106 mb, sig, sig->param_count + 16);
3115 MonoMethodSignature *sig;
3117 } SignaturePointerPair;
3120 signature_pointer_pair_hash (gconstpointer data)
3122 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3124 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3128 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3130 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3131 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3135 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3137 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3139 return pair->pointer == user_data;
3143 free_signature_pointer_pair (SignaturePointerPair *pair)
3149 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3151 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3153 MonoMethodBuilder *mb;
3156 gpointer cache_key = NULL;
3157 SignaturePointerPair key;
3158 SignaturePointerPair *new_key;
3159 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3160 int pos0, pos1, pos2;
3162 MonoClass *target_class = NULL;
3163 gboolean closed_over_null = FALSE;
3164 MonoGenericContext *ctx = NULL;
3165 MonoGenericContainer *container = NULL;
3166 MonoMethod *orig_method = NULL;
3168 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3172 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3173 !strcmp (method->name, "Invoke"));
3175 invoke_sig = sig = mono_signature_no_pinvoke (method);
3178 * If the delegate target is null, and the target method is not static, a virtual
3179 * call is made to that method with the first delegate argument as this. This is
3180 * a non-documented .NET feature.
3183 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3184 if (target_method->is_inflated) {
3186 MonoType *target_type;
3188 g_assert (method->signature->hasthis);
3189 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3190 mono_method_get_context (method), &error);
3191 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3192 target_class = mono_class_from_mono_type (target_type);
3194 target_class = target_method->klass;
3197 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3200 if (static_method_with_first_arg_bound) {
3201 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3202 g_assert (!callvirt);
3203 invoke_sig = mono_method_signature (target_method);
3207 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3209 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3210 orig_method = method;
3211 ctx = &((MonoMethodInflated*)method)->context;
3212 method = ((MonoMethodInflated*)method)->declaring;
3214 container = mono_method_get_generic_container (method);
3216 container = method->klass->generic_container;
3217 g_assert (container);
3219 invoke_sig = sig = mono_signature_no_pinvoke (method);
3226 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3227 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3230 cache_key = method->klass;
3231 } else if (static_method_with_first_arg_bound) {
3232 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3233 (GHashFunc)mono_signature_hash,
3234 (GCompareFunc)mono_metadata_signature_equal);
3236 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3238 res = mono_marshal_find_in_cache (cache, invoke_sig);
3241 cache_key = invoke_sig;
3242 } else if (callvirt) {
3243 GHashTable **cache_ptr;
3245 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3247 /* We need to cache the signature+method pair */
3248 mono_marshal_lock ();
3250 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3252 key.sig = invoke_sig;
3253 key.pointer = target_method;
3254 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3255 mono_marshal_unlock ();
3259 // Inflated methods should not be in this cache because it's not stored on the imageset.
3260 g_assert (!method->is_inflated);
3261 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3262 (GHashFunc)mono_signature_hash,
3263 (GCompareFunc)mono_metadata_signature_equal);
3264 res = mono_marshal_find_in_cache (cache, sig);
3270 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3271 static_sig->hasthis = 0;
3272 if (!static_method_with_first_arg_bound)
3273 invoke_sig = static_sig;
3275 if (static_method_with_first_arg_bound)
3276 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3277 else if (closed_over_null)
3278 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3280 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3282 name = mono_signature_to_name (invoke_sig, "invoke");
3284 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3286 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3290 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3292 /* allocate local 0 (object) */
3293 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3294 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3295 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3296 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3297 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3300 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3302 g_assert (sig->hasthis);
3305 * {type: sig->ret} res;
3306 * if (delegates == null) {
3307 * return this.<target> ( args .. );
3309 * int i = 0, len = this.delegates.Length;
3311 * res = this.delegates [i].Invoke ( args .. );
3312 * } while (++i < len);
3317 /* this wrapper can be used in unmanaged-managed transitions */
3318 emit_thread_interrupt_checkpoint (mb);
3320 /* delegates = this.delegates */
3321 mono_mb_emit_ldarg (mb, 0);
3322 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3323 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3324 mono_mb_emit_stloc (mb, local_delegates);
3327 /* if (delegates == null) */
3328 mono_mb_emit_ldloc (mb, local_delegates);
3329 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3331 /* return target.<target_method|method_ptr> ( args .. ); */
3333 /* target = d.target; */
3334 mono_mb_emit_ldarg (mb, 0);
3335 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3336 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3337 mono_mb_emit_stloc (mb, local_target);
3339 /*static methods with bound first arg can have null target and still be bound*/
3340 if (!static_method_with_first_arg_bound) {
3341 /* if target != null */
3342 mono_mb_emit_ldloc (mb, local_target);
3343 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3345 /* then call this->method_ptr nonstatic */
3348 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3350 mono_mb_emit_ldloc (mb, local_target);
3351 for (i = 0; i < sig->param_count; ++i)
3352 mono_mb_emit_ldarg (mb, i + 1);
3353 mono_mb_emit_ldarg (mb, 0);
3354 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3355 mono_mb_emit_byte (mb, CEE_LDIND_I);
3356 mono_mb_emit_ldarg (mb, 0);
3357 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3358 mono_mb_emit_byte (mb, CEE_LDIND_I);
3359 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3360 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3361 mono_mb_emit_byte (mb, CEE_RET);
3364 /* else [target == null] call this->method_ptr static */
3365 mono_mb_patch_branch (mb, pos0);
3369 if (!closed_over_null) {
3370 if (target_class->valuetype) {
3371 mono_mb_emit_ldarg (mb, 1);
3372 for (i = 1; i < sig->param_count; ++i)
3373 mono_mb_emit_ldarg (mb, i + 1);
3374 mono_mb_emit_op (mb, CEE_CALL, target_method);
3376 mono_mb_emit_ldarg (mb, 1);
3377 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3378 for (i = 1; i < sig->param_count; ++i)
3379 mono_mb_emit_ldarg (mb, i + 1);
3380 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3383 mono_mb_emit_byte (mb, CEE_LDNULL);
3384 for (i = 0; i < sig->param_count; ++i)
3385 mono_mb_emit_ldarg (mb, i + 1);
3386 mono_mb_emit_op (mb, CEE_CALL, target_method);
3389 if (static_method_with_first_arg_bound) {
3390 mono_mb_emit_ldloc (mb, local_target);
3391 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3392 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3394 for (i = 0; i < sig->param_count; ++i)
3395 mono_mb_emit_ldarg (mb, i + 1);
3396 mono_mb_emit_ldarg (mb, 0);
3397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3398 mono_mb_emit_byte (mb, CEE_LDIND_I);
3399 mono_mb_emit_ldarg (mb, 0);
3400 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3401 mono_mb_emit_byte (mb, CEE_LDIND_I);
3402 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3403 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3406 mono_mb_emit_byte (mb, CEE_RET);
3408 /* else [delegates != null] */
3409 mono_mb_patch_branch (mb, pos2);
3411 /* len = delegates.Length; */
3412 mono_mb_emit_ldloc (mb, local_delegates);
3413 mono_mb_emit_byte (mb, CEE_LDLEN);
3414 mono_mb_emit_byte (mb, CEE_CONV_I4);
3415 mono_mb_emit_stloc (mb, local_len);
3418 mono_mb_emit_icon (mb, 0);
3419 mono_mb_emit_stloc (mb, local_i);
3421 pos1 = mono_mb_get_label (mb);
3423 /* d = delegates [i]; */
3424 mono_mb_emit_ldloc (mb, local_delegates);
3425 mono_mb_emit_ldloc (mb, local_i);
3426 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3427 mono_mb_emit_stloc (mb, local_d);
3429 /* res = d.Invoke ( args .. ); */
3430 mono_mb_emit_ldloc (mb, local_d);
3431 for (i = 0; i < sig->param_count; i++)
3432 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3437 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3438 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3441 mono_mb_emit_stloc (mb, local_res);
3444 mono_mb_emit_add_to_local (mb, local_i, 1);
3447 mono_mb_emit_ldloc (mb, local_i);
3448 mono_mb_emit_ldloc (mb, local_len);
3449 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3453 mono_mb_emit_ldloc (mb, local_res);
3454 mono_mb_emit_byte (mb, CEE_RET);
3456 mb->skip_visibility = 1;
3457 #endif /* DISABLE_JIT */
3459 info = mono_wrapper_info_create (mb, subtype);
3464 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3465 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3466 } else if (callvirt) {
3467 new_key = g_new0 (SignaturePointerPair, 1);
3470 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3474 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3478 /* mono_method_print_code (res); */
3484 * the returned method invokes all methods in a multicast delegate.
3487 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3489 gboolean callvirt = FALSE;
3490 gboolean static_method_with_first_arg_bound = FALSE;
3491 MonoMethod *target_method = NULL;
3492 MonoMethodSignature *sig;
3494 sig = mono_signature_no_pinvoke (method);
3496 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3498 target_method = del->method;
3501 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3502 static_method_with_first_arg_bound = TRUE;
3503 target_method = del->method;
3506 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3510 MonoMethodSignature *ctor_sig;
3511 MonoMethodSignature *sig;
3514 /* protected by the marshal lock, contains CtorSigPair pointers */
3515 static GSList *strsig_list = NULL;
3517 static MonoMethodSignature *
3518 lookup_string_ctor_signature (MonoMethodSignature *sig)
3520 MonoMethodSignature *callsig;
3524 mono_marshal_lock ();
3526 for (item = strsig_list; item; item = item->next) {
3527 cs = (CtorSigPair *)item->data;
3528 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3529 * because it is lock-free.
3531 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3536 mono_marshal_unlock ();
3540 static MonoMethodSignature *
3541 add_string_ctor_signature (MonoMethod *method)
3543 MonoMethodSignature *callsig;
3546 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3547 callsig->ret = &mono_defaults.string_class->byval_arg;
3548 cs = g_new (CtorSigPair, 1);
3550 cs->ctor_sig = mono_method_signature (method);
3552 mono_marshal_lock ();
3553 strsig_list = g_slist_prepend (strsig_list, cs);
3554 mono_marshal_unlock ();
3559 * mono_marshal_get_string_ctor_signature:
3561 * Return the modified signature used by string ctors (they return the newly created
3564 MonoMethodSignature*
3565 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3567 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3569 sig = add_string_ctor_signature (method);
3575 get_runtime_invoke_type (MonoType *t, gboolean ret)
3578 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3580 /* Can't share this with 'I' as that needs another indirection */
3581 return &mono_defaults.int_class->this_arg;
3584 if (MONO_TYPE_IS_REFERENCE (t))
3585 return &mono_defaults.object_class->byval_arg;
3588 /* The result needs to be boxed */
3593 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3596 return &mono_defaults.sbyte_class->byval_arg;
3598 return &mono_defaults.int16_class->byval_arg;
3600 return &mono_defaults.int32_class->byval_arg;
3603 return &mono_defaults.int64_class->byval_arg;
3604 case MONO_TYPE_BOOLEAN:
3605 return &mono_defaults.byte_class->byval_arg;
3606 case MONO_TYPE_CHAR:
3607 return &mono_defaults.uint16_class->byval_arg;
3609 return &mono_defaults.int_class->byval_arg;
3610 case MONO_TYPE_VALUETYPE:
3611 if (t->data.klass->enumtype) {
3612 t = mono_class_enum_basetype (t->data.klass);
3622 * mono_marshal_get_runtime_invoke_sig:
3624 * Return a common signature used for sharing runtime invoke wrappers.
3626 static MonoMethodSignature*
3627 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3629 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3632 res->generic_param_count = 0;
3633 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3634 for (i = 0; i < res->param_count; ++i)
3635 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3641 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3643 /* Can't share wrappers which return a vtype since it needs to be boxed */
3644 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))
3647 return mono_metadata_signature_equal (sig1, sig2);
3655 * Emit the call to the wrapper method from a runtime invoke wrapper.
3658 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3659 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3661 gboolean virtual_, gboolean need_direct_wrapper)
3663 static MonoString *string_dummy = NULL;
3665 int *tmp_nullable_locals;
3666 gboolean void_ret = FALSE;
3667 gboolean string_ctor = method && method->string_ctor;
3669 /* to make it work with our special string constructors */
3670 if (!string_dummy) {
3671 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3672 string_dummy = mono_string_new_wrapper ("dummy");
3676 g_assert (sig->hasthis);
3677 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3682 if (mono_gc_is_moving ()) {
3683 mono_mb_emit_ptr (mb, &string_dummy);
3684 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3686 mono_mb_emit_ptr (mb, string_dummy);
3689 mono_mb_emit_ldarg (mb, 0);
3693 tmp_nullable_locals = g_new0 (int, sig->param_count);
3695 for (i = 0; i < sig->param_count; i++) {
3696 MonoType *t = sig->params [i];
3699 mono_mb_emit_ldarg (mb, 1);
3701 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3702 mono_mb_emit_byte (mb, CEE_ADD);
3706 mono_mb_emit_byte (mb, CEE_LDIND_I);
3707 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3708 * So to make this work we unbox it to a local variablee and push a reference to that.
3710 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3711 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3713 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3714 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3715 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3720 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3721 type = sig->params [i]->type;
3725 case MONO_TYPE_BOOLEAN:
3729 case MONO_TYPE_CHAR:
3738 mono_mb_emit_byte (mb, CEE_LDIND_I);
3739 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3741 case MONO_TYPE_STRING:
3742 case MONO_TYPE_CLASS:
3743 case MONO_TYPE_ARRAY:
3745 case MONO_TYPE_SZARRAY:
3746 case MONO_TYPE_OBJECT:
3747 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3749 case MONO_TYPE_GENERICINST:
3750 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3751 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3756 case MONO_TYPE_VALUETYPE:
3757 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3758 type = mono_class_enum_basetype (t->data.klass)->type;
3761 mono_mb_emit_byte (mb, CEE_LDIND_I);
3762 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3763 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3764 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3765 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3767 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3771 g_assert_not_reached ();
3776 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3777 } else if (need_direct_wrapper) {
3778 mono_mb_emit_op (mb, CEE_CALL, method);
3780 mono_mb_emit_ldarg (mb, 3);
3781 mono_mb_emit_calli (mb, callsig);
3784 if (sig->ret->byref) {
3786 g_assert_not_reached ();
3789 switch (sig->ret->type) {
3790 case MONO_TYPE_VOID:
3794 case MONO_TYPE_BOOLEAN:
3795 case MONO_TYPE_CHAR:
3808 case MONO_TYPE_VALUETYPE:
3809 case MONO_TYPE_TYPEDBYREF:
3810 case MONO_TYPE_GENERICINST:
3811 /* box value types */
3812 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3814 case MONO_TYPE_STRING:
3815 case MONO_TYPE_CLASS:
3816 case MONO_TYPE_ARRAY:
3817 case MONO_TYPE_SZARRAY:
3818 case MONO_TYPE_OBJECT:
3822 /* The result is an IntPtr */
3823 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3826 g_assert_not_reached ();
3830 mono_mb_emit_stloc (mb, loc_res);
3832 /* Convert back nullable-byref arguments */
3833 for (i = 0; i < sig->param_count; i++) {
3834 MonoType *t = sig->params [i];
3837 * Box the result and put it back into the array, the caller will have
3838 * to obtain it from there.
3840 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3841 mono_mb_emit_ldarg (mb, 1);
3842 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3843 mono_mb_emit_byte (mb, CEE_ADD);
3845 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3846 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3848 mono_mb_emit_byte (mb, CEE_STIND_REF);
3852 g_free (tmp_nullable_locals);
3856 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3857 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3858 gboolean virtual_, gboolean need_direct_wrapper)
3861 MonoExceptionClause *clause;
3862 int loc_res, loc_exc;
3864 /* The wrapper looks like this:
3870 * } catch (Exception e) {
3878 /* allocate local 0 (object) tmp */
3879 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3880 /* allocate local 1 (object) exc */
3881 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3883 /* *exc is assumed to be initialized to NULL by the caller */
3885 mono_mb_emit_byte (mb, CEE_LDARG_2);
3886 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3891 labels [1] = mono_mb_get_label (mb);
3892 emit_thread_force_interrupt_checkpoint (mb);
3893 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3895 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3897 /* Add a try clause around the call */
3898 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3899 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3900 clause->data.catch_class = mono_defaults.exception_class;
3901 clause->try_offset = labels [1];
3902 clause->try_len = mono_mb_get_label (mb) - labels [1];
3904 clause->handler_offset = mono_mb_get_label (mb);
3907 mono_mb_emit_stloc (mb, loc_exc);
3908 mono_mb_emit_byte (mb, CEE_LDARG_2);
3909 mono_mb_emit_ldloc (mb, loc_exc);
3910 mono_mb_emit_byte (mb, CEE_STIND_REF);
3912 mono_mb_emit_branch (mb, CEE_LEAVE);
3914 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3916 mono_mb_set_clauses (mb, 1, clause);
3918 mono_mb_patch_branch (mb, labels [2]);
3919 mono_mb_emit_ldloc (mb, loc_res);
3920 mono_mb_emit_byte (mb, CEE_RET);
3925 mono_mb_patch_branch (mb, labels [0]);
3926 emit_thread_force_interrupt_checkpoint (mb);
3927 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3929 mono_mb_emit_ldloc (mb, 0);
3930 mono_mb_emit_byte (mb, CEE_RET);
3935 * generates IL code for the runtime invoke function
3936 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3938 * we also catch exceptions if exc != null
3939 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3940 * it means that the compiled code for METHOD does not have to be looked up
3941 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3942 * its METHOD argument.
3945 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3947 MonoMethodSignature *sig, *csig, *callsig;
3948 MonoMethodBuilder *mb;
3949 GHashTable *cache = NULL;
3950 MonoClass *target_klass;
3951 MonoMethod *res = NULL;
3952 static MonoMethodSignature *cctor_signature = NULL;
3953 static MonoMethodSignature *finalize_signature = NULL;
3955 const char *param_names [16];
3956 gboolean need_direct_wrapper = FALSE;
3961 if (!cctor_signature) {
3962 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3963 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3965 if (!finalize_signature) {
3966 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3967 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3968 finalize_signature->hasthis = 1;
3972 need_direct_wrapper = TRUE;
3975 * Use a separate cache indexed by methods to speed things up and to avoid the
3976 * boundless mempool growth caused by the signature_dup stuff below.
3979 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3981 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3983 res = mono_marshal_find_in_cache (cache, method);
3987 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3988 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3990 * Array Get/Set/Address methods. The JIT implements them using inline code
3991 * so we need to create an invoke wrapper which calls the method directly.
3993 need_direct_wrapper = TRUE;
3996 if (method->string_ctor) {
3997 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3999 callsig = add_string_ctor_signature (method);
4000 /* Can't share this as we push a string as this */
4001 need_direct_wrapper = TRUE;
4003 if (method_is_dynamic (method))
4004 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4006 callsig = mono_method_signature (method);
4009 sig = mono_method_signature (method);
4011 target_klass = get_wrapper_target_class (method->klass->image);
4013 /* Try to share wrappers for non-corlib methods with simple signatures */
4014 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4015 callsig = cctor_signature;
4016 target_klass = mono_defaults.object_class;
4017 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4018 callsig = finalize_signature;
4019 target_klass = mono_defaults.object_class;
4022 if (need_direct_wrapper) {
4023 /* Already searched at the start */
4025 MonoMethodSignature *tmp_sig;
4027 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4028 GHashTable **cache_table = NULL;
4030 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4031 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4033 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4035 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4036 (GCompareFunc)runtime_invoke_signature_equal);
4038 /* from mono_marshal_find_in_cache */
4039 mono_marshal_lock ();
4040 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4041 mono_marshal_unlock ();
4048 /* Make a copy of the signature from the image mempool */
4050 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4054 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4056 csig->ret = &mono_defaults.object_class->byval_arg;
4057 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4058 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4060 csig->params [0] = &mono_defaults.object_class->byval_arg;
4061 csig->params [1] = &mono_defaults.int_class->byval_arg;
4062 csig->params [2] = &mono_defaults.int_class->byval_arg;
4063 csig->params [3] = &mono_defaults.int_class->byval_arg;
4066 /* This is called from runtime code so it has to be cdecl */
4067 csig->call_convention = MONO_CALL_C;
4070 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4071 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4075 param_names [0] = "this";
4076 param_names [1] = "params";
4077 param_names [2] = "exc";
4078 param_names [3] = "method";
4079 mono_mb_set_param_names (mb, param_names);
4081 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4084 if (need_direct_wrapper) {
4086 mb->skip_visibility = 1;
4088 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4089 info->d.runtime_invoke.method = method;
4090 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4092 /* taken from mono_mb_create_and_cache */
4093 mono_marshal_lock ();
4094 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4095 mono_marshal_unlock ();
4097 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4098 info->d.runtime_invoke.sig = callsig;
4100 /* Somebody may have created it before us */
4103 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4105 mono_marshal_lock ();
4106 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4108 GHashTable *direct_cache;
4110 g_hash_table_insert (cache, callsig, res);
4111 /* Can't insert it into wrapper_hash since the key is a signature */
4112 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4114 g_hash_table_insert (direct_cache, method, res);
4116 mono_free_method (newm);
4118 mono_marshal_unlock ();
4121 /* end mono_mb_create_and_cache */
4130 * mono_marshal_get_runtime_invoke_dynamic:
4132 * Return a method which can be used to invoke managed methods from native code
4134 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4135 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4136 * ARGS should point to an architecture specific structure containing
4137 * the arguments and space for the return value.
4138 * The other arguments are the same as for runtime_invoke (), except that
4139 * ARGS should contain the this argument too.
4140 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4141 * is only one copy of it, which is useful in full-aot.
4142 * The wrapper info for the wrapper is a WrapperInfo structure.
4145 mono_marshal_get_runtime_invoke_dynamic (void)
4147 static MonoMethod *method;
4148 MonoMethodSignature *csig;
4149 MonoExceptionClause *clause;
4150 MonoMethodBuilder *mb;
4158 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4160 csig->ret = &mono_defaults.void_class->byval_arg;
4161 csig->params [0] = &mono_defaults.int_class->byval_arg;
4162 csig->params [1] = &mono_defaults.int_class->byval_arg;
4163 csig->params [2] = &mono_defaults.int_class->byval_arg;
4164 csig->params [3] = &mono_defaults.int_class->byval_arg;
4166 name = g_strdup ("runtime_invoke_dynamic");
4167 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4171 /* allocate local 0 (object) tmp */
4172 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4173 /* allocate local 1 (object) exc */
4174 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4176 /* cond set *exc to null */
4177 mono_mb_emit_byte (mb, CEE_LDARG_1);
4178 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4179 mono_mb_emit_byte (mb, 3);
4180 mono_mb_emit_byte (mb, CEE_LDARG_1);
4181 mono_mb_emit_byte (mb, CEE_LDNULL);
4182 mono_mb_emit_byte (mb, CEE_STIND_REF);
4184 emit_thread_force_interrupt_checkpoint (mb);
4186 mono_mb_emit_byte (mb, CEE_LDARG_0);
4187 mono_mb_emit_byte (mb, CEE_LDARG_2);
4188 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4189 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4191 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4193 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4194 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4195 clause->try_len = mono_mb_get_label (mb);
4198 clause->data.filter_offset = mono_mb_get_label (mb);
4200 mono_mb_emit_byte (mb, CEE_POP);
4201 mono_mb_emit_byte (mb, CEE_LDARG_1);
4202 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4203 mono_mb_emit_byte (mb, CEE_PREFIX1);
4204 mono_mb_emit_byte (mb, CEE_CGT_UN);
4205 mono_mb_emit_byte (mb, CEE_PREFIX1);
4206 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4208 clause->handler_offset = mono_mb_get_label (mb);
4211 /* store exception */
4212 mono_mb_emit_stloc (mb, 1);
4214 mono_mb_emit_byte (mb, CEE_LDARG_1);
4215 mono_mb_emit_ldloc (mb, 1);
4216 mono_mb_emit_byte (mb, CEE_STIND_REF);
4218 mono_mb_emit_byte (mb, CEE_LDNULL);
4219 mono_mb_emit_stloc (mb, 0);
4221 /* Check for the abort exception */
4222 mono_mb_emit_ldloc (mb, 1);
4223 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4224 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4226 /* Delay the abort exception */
4227 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4229 mono_mb_patch_short_branch (mb, posna);
4230 mono_mb_emit_branch (mb, CEE_LEAVE);
4232 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4234 mono_mb_set_clauses (mb, 1, clause);
4237 mono_mb_patch_branch (mb, pos);
4238 //mono_mb_emit_ldloc (mb, 0);
4239 mono_mb_emit_byte (mb, CEE_RET);
4240 #endif /* DISABLE_JIT */
4242 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4244 mono_marshal_lock ();
4245 /* double-checked locking */
4247 method = mono_mb_create (mb, csig, 16, info);
4249 mono_marshal_unlock ();
4257 * mono_marshal_get_runtime_invoke_for_sig:
4259 * Return a runtime invoke wrapper for a given signature.
4262 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4264 MonoMethodSignature *csig, *callsig;
4265 MonoMethodBuilder *mb;
4267 GHashTable *cache = NULL;
4268 GHashTable **cache_table = NULL;
4269 MonoMethod *res = NULL;
4271 const char *param_names [16];
4274 /* A simplified version of mono_marshal_get_runtime_invoke */
4276 image = mono_defaults.corlib;
4278 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4280 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4282 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4283 (GCompareFunc)runtime_invoke_signature_equal);
4285 /* from mono_marshal_find_in_cache */
4286 mono_marshal_lock ();
4287 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4288 mono_marshal_unlock ();
4295 /* Make a copy of the signature from the image mempool */
4296 callsig = mono_metadata_signature_dup_full (image, callsig);
4298 csig = mono_metadata_signature_alloc (image, 4);
4299 csig->ret = &mono_defaults.object_class->byval_arg;
4300 csig->params [0] = &mono_defaults.object_class->byval_arg;
4301 csig->params [1] = &mono_defaults.int_class->byval_arg;
4302 csig->params [2] = &mono_defaults.int_class->byval_arg;
4303 csig->params [3] = &mono_defaults.int_class->byval_arg;
4306 /* This is called from runtime code so it has to be cdecl */
4307 csig->call_convention = MONO_CALL_C;
4310 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4311 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4315 param_names [0] = "this";
4316 param_names [1] = "params";
4317 param_names [2] = "exc";
4318 param_names [3] = "method";
4319 mono_mb_set_param_names (mb, param_names);
4321 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4324 /* taken from mono_mb_create_and_cache */
4325 mono_marshal_lock ();
4326 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4327 mono_marshal_unlock ();
4329 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4330 info->d.runtime_invoke.sig = callsig;
4332 /* Somebody may have created it before us */
4335 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4337 mono_marshal_lock ();
4338 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4341 g_hash_table_insert (cache, callsig, res);
4343 mono_free_method (newm);
4345 mono_marshal_unlock ();
4348 /* end mono_mb_create_and_cache */
4357 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4359 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4360 klass->name_space, klass->name);
4362 mono_mb_emit_exception_marshal_directive (mb, msg);
4367 * generates IL code for the icall wrapper (the generated method
4368 * calls the unmanaged code in func)
4369 * The wrapper info for the wrapper is a WrapperInfo structure.
4372 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4374 MonoMethodSignature *csig, *csig2;
4375 MonoMethodBuilder *mb;
4380 g_assert (sig->pinvoke);
4382 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4384 mb->method->save_lmf = 1;
4386 /* Add an explicit this argument */
4388 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4390 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4394 mono_mb_emit_byte (mb, CEE_LDARG_0);
4396 for (i = 0; i < sig->param_count; i++)
4397 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4400 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4401 mono_mb_emit_calli (mb, csig2);
4402 if (check_exceptions)
4403 emit_thread_interrupt_checkpoint (mb);
4404 mono_mb_emit_byte (mb, CEE_RET);
4407 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4409 if (csig->call_convention == MONO_CALL_VARARG)
4410 csig->call_convention = 0;
4412 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4413 info->d.icall.func = (gpointer)func;
4414 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4421 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4422 MonoMarshalSpec *spec,
4423 int conv_arg, MonoType **conv_arg_type,
4424 MarshalAction action)
4427 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4428 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4434 static MonoClass *ICustomMarshaler = NULL;
4435 static MonoMethod *cleanup_native, *cleanup_managed;
4436 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4437 MonoMethod *get_instance = NULL;
4438 MonoMethodBuilder *mb = m->mb;
4439 char *exception_msg = NULL;
4443 if (!ICustomMarshaler) {
4444 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4446 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4447 goto handle_exception;
4450 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4451 g_assert (cleanup_native);
4452 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4453 g_assert (cleanup_managed);
4454 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4455 g_assert (marshal_managed_to_native);
4456 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4457 g_assert (marshal_native_to_managed);
4459 mono_memory_barrier ();
4460 ICustomMarshaler = klass;
4463 if (spec->data.custom_data.image)
4464 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4466 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4467 g_assert (mtype != NULL);
4468 mono_error_assert_ok (&error);
4469 mklass = mono_class_from_mono_type (mtype);
4470 g_assert (mklass != NULL);
4472 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4473 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4475 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4477 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4478 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4479 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4480 (get_sig->params [0]->type != MONO_TYPE_STRING))
4481 get_instance = NULL;
4485 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);
4488 /* Throw exception and emit compensation code if neccesary */
4489 if (exception_msg) {
4491 case MARSHAL_ACTION_CONV_IN:
4492 case MARSHAL_ACTION_CONV_RESULT:
4493 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4494 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4495 mono_mb_emit_byte (mb, CEE_POP);
4497 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4498 g_free (exception_msg);
4501 case MARSHAL_ACTION_PUSH:
4502 mono_mb_emit_byte (mb, CEE_LDNULL);
4510 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4511 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4514 case MARSHAL_ACTION_CONV_IN:
4516 case MONO_TYPE_CLASS:
4517 case MONO_TYPE_OBJECT:
4518 case MONO_TYPE_STRING:
4519 case MONO_TYPE_ARRAY:
4520 case MONO_TYPE_SZARRAY:
4521 case MONO_TYPE_VALUETYPE:
4525 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4526 g_assert_not_reached ();
4530 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4532 mono_mb_emit_byte (mb, CEE_LDNULL);
4533 mono_mb_emit_stloc (mb, conv_arg);
4535 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4538 /* Minic MS.NET behavior */
4539 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4542 /* Check for null */
4543 mono_mb_emit_ldarg (mb, argnum);
4545 mono_mb_emit_byte (mb, CEE_LDIND_I);
4546 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4548 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4550 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4552 mono_mb_emit_ldarg (mb, argnum);
4554 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4556 if (t->type == MONO_TYPE_VALUETYPE) {
4558 * Since we can't determine the type of the argument, we
4559 * will assume the unmanaged function takes a pointer.
4561 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4563 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4566 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4567 mono_mb_emit_stloc (mb, conv_arg);
4569 mono_mb_patch_branch (mb, pos2);
4572 case MARSHAL_ACTION_CONV_OUT:
4573 /* Check for null */
4574 mono_mb_emit_ldloc (mb, conv_arg);
4575 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4578 mono_mb_emit_ldarg (mb, argnum);
4580 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4582 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4584 mono_mb_emit_ldloc (mb, conv_arg);
4585 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4586 mono_mb_emit_byte (mb, CEE_STIND_REF);
4587 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4588 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4590 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4592 mono_mb_emit_ldloc (mb, conv_arg);
4593 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4595 /* We have nowhere to store the result */
4596 mono_mb_emit_byte (mb, CEE_POP);
4599 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4601 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4603 mono_mb_emit_ldloc (mb, conv_arg);
4605 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4607 mono_mb_patch_branch (mb, pos2);
4610 case MARSHAL_ACTION_PUSH:
4612 mono_mb_emit_ldloc_addr (mb, conv_arg);
4614 mono_mb_emit_ldloc (mb, conv_arg);
4617 case MARSHAL_ACTION_CONV_RESULT:
4618 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4620 mono_mb_emit_stloc (mb, 3);
4622 mono_mb_emit_ldloc (mb, 3);
4623 mono_mb_emit_stloc (mb, loc1);
4625 /* Check for null */
4626 mono_mb_emit_ldloc (mb, 3);
4627 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4629 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4631 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4632 mono_mb_emit_byte (mb, CEE_DUP);
4634 mono_mb_emit_ldloc (mb, 3);
4635 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4636 mono_mb_emit_stloc (mb, 3);
4638 mono_mb_emit_ldloc (mb, loc1);
4639 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4641 mono_mb_patch_branch (mb, pos2);
4644 case MARSHAL_ACTION_MANAGED_CONV_IN:
4645 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4647 mono_mb_emit_byte (mb, CEE_LDNULL);
4648 mono_mb_emit_stloc (mb, conv_arg);
4650 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4653 /* Check for null */
4654 mono_mb_emit_ldarg (mb, argnum);
4656 mono_mb_emit_byte (mb, CEE_LDIND_I);
4657 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4659 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4660 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4662 mono_mb_emit_ldarg (mb, argnum);
4664 mono_mb_emit_byte (mb, CEE_LDIND_I);
4666 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4667 mono_mb_emit_stloc (mb, conv_arg);
4669 mono_mb_patch_branch (mb, pos2);
4672 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4673 g_assert (!t->byref);
4675 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4677 mono_mb_emit_stloc (mb, 3);
4679 mono_mb_emit_ldloc (mb, 3);
4680 mono_mb_emit_stloc (mb, loc1);
4682 /* Check for null */
4683 mono_mb_emit_ldloc (mb, 3);
4684 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4686 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4687 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4688 mono_mb_emit_byte (mb, CEE_DUP);
4690 mono_mb_emit_ldloc (mb, 3);
4691 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4692 mono_mb_emit_stloc (mb, 3);
4694 mono_mb_emit_ldloc (mb, loc1);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4697 mono_mb_patch_branch (mb, pos2);
4700 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4702 /* Check for null */
4703 mono_mb_emit_ldloc (mb, conv_arg);
4704 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4707 mono_mb_emit_ldarg (mb, argnum);
4709 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4711 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4713 mono_mb_emit_ldloc (mb, conv_arg);
4714 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4715 mono_mb_emit_byte (mb, CEE_STIND_I);
4718 /* Call CleanUpManagedData */
4719 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4721 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4723 mono_mb_emit_ldloc (mb, conv_arg);
4724 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4726 mono_mb_patch_branch (mb, pos2);
4730 g_assert_not_reached ();
4738 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4739 MonoMarshalSpec *spec,
4740 int conv_arg, MonoType **conv_arg_type,
4741 MarshalAction action)
4744 MonoMethodBuilder *mb = m->mb;
4747 case MARSHAL_ACTION_CONV_IN: {
4748 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4750 g_assert (t->type == MONO_TYPE_OBJECT);
4751 g_assert (!t->byref);
4753 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4754 mono_mb_emit_ldarg (mb, argnum);
4755 mono_mb_emit_icon (mb, encoding);
4756 mono_mb_emit_icon (mb, t->attrs);
4757 mono_mb_emit_icall (mb, mono_marshal_asany);
4758 mono_mb_emit_stloc (mb, conv_arg);
4762 case MARSHAL_ACTION_PUSH:
4763 mono_mb_emit_ldloc (mb, conv_arg);
4766 case MARSHAL_ACTION_CONV_OUT: {
4767 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4769 mono_mb_emit_ldarg (mb, argnum);
4770 mono_mb_emit_ldloc (mb, conv_arg);
4771 mono_mb_emit_icon (mb, encoding);
4772 mono_mb_emit_icon (mb, t->attrs);
4773 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4778 g_assert_not_reached ();
4785 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4786 MonoMarshalSpec *spec,
4787 int conv_arg, MonoType **conv_arg_type,
4788 MarshalAction action)
4791 MonoMethodBuilder *mb = m->mb;
4792 MonoClass *klass, *date_time_class;
4795 klass = mono_class_from_mono_type (t);
4797 date_time_class = mono_class_get_date_time_class ();
4800 case MARSHAL_ACTION_CONV_IN:
4801 if (klass == date_time_class) {
4802 /* Convert it to an OLE DATE type */
4803 static MonoMethod *to_oadate;
4806 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4807 g_assert (to_oadate);
4809 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4812 mono_mb_emit_ldarg (mb, argnum);
4813 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4816 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4818 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4820 mono_mb_emit_ldarg_addr (mb, argnum);
4821 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4822 mono_mb_emit_stloc (mb, conv_arg);
4826 mono_mb_patch_branch (mb, pos);
4830 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4831 klass->blittable || klass->enumtype)
4834 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4836 /* store the address of the source into local variable 0 */
4838 mono_mb_emit_ldarg (mb, argnum);
4840 mono_mb_emit_ldarg_addr (mb, argnum);
4842 mono_mb_emit_stloc (mb, 0);
4844 /* allocate space for the native struct and
4845 * store the address into local variable 1 (dest) */
4846 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4847 mono_mb_emit_byte (mb, CEE_PREFIX1);
4848 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4849 mono_mb_emit_stloc (mb, conv_arg);
4852 mono_mb_emit_ldloc (mb, 0);
4853 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4856 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4858 mono_mb_emit_ldloc (mb, conv_arg);
4859 mono_mb_emit_stloc (mb, 1);
4861 /* emit valuetype conversion code */
4862 emit_struct_conv (mb, klass, FALSE);
4866 mono_mb_patch_branch (mb, pos);
4869 case MARSHAL_ACTION_PUSH:
4870 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4872 g_assert (!t->byref);
4874 /* Have to change the signature since the vtype is passed byref */
4875 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4877 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4878 klass->blittable || klass->enumtype)
4879 mono_mb_emit_ldarg_addr (mb, argnum);
4881 mono_mb_emit_ldloc (mb, conv_arg);
4885 if (klass == date_time_class) {
4887 mono_mb_emit_ldloc_addr (mb, conv_arg);
4889 mono_mb_emit_ldloc (mb, conv_arg);
4893 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4894 klass->blittable || klass->enumtype) {
4895 mono_mb_emit_ldarg (mb, argnum);
4898 mono_mb_emit_ldloc (mb, conv_arg);
4900 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4901 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4905 case MARSHAL_ACTION_CONV_OUT:
4906 if (klass == date_time_class) {
4907 /* Convert from an OLE DATE type */
4908 static MonoMethod *from_oadate;
4913 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4915 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4916 g_assert (from_oadate);
4918 mono_mb_emit_ldarg (mb, argnum);
4919 mono_mb_emit_ldloc (mb, conv_arg);
4920 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4921 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4926 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4927 klass->blittable || klass->enumtype)
4931 /* dst = argument */
4932 mono_mb_emit_ldarg (mb, argnum);
4933 mono_mb_emit_stloc (mb, 1);
4935 mono_mb_emit_ldloc (mb, 1);
4936 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4938 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4939 /* src = tmp_locals [i] */
4940 mono_mb_emit_ldloc (mb, conv_arg);
4941 mono_mb_emit_stloc (mb, 0);
4943 /* emit valuetype conversion code */
4944 emit_struct_conv (mb, klass, TRUE);
4948 emit_struct_free (mb, klass, conv_arg);
4951 mono_mb_patch_branch (mb, pos);
4954 case MARSHAL_ACTION_CONV_RESULT:
4955 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4957 mono_mb_emit_stloc (mb, 3);
4961 /* load pointer to returned value type */
4962 g_assert (m->vtaddr_var);
4963 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4964 /* store the address of the source into local variable 0 */
4965 mono_mb_emit_stloc (mb, 0);
4967 mono_mb_emit_ldloc_addr (mb, 3);
4968 mono_mb_emit_stloc (mb, 1);
4970 /* emit valuetype conversion code */
4971 emit_struct_conv (mb, klass, TRUE);
4974 case MARSHAL_ACTION_MANAGED_CONV_IN:
4975 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4976 klass->blittable || klass->enumtype) {
4981 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4983 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4987 mono_mb_emit_ldarg (mb, argnum);
4989 mono_mb_emit_ldarg_addr (mb, argnum);
4990 mono_mb_emit_stloc (mb, 0);
4993 mono_mb_emit_ldloc (mb, 0);
4994 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4997 mono_mb_emit_ldloc_addr (mb, conv_arg);
4998 mono_mb_emit_stloc (mb, 1);
5000 /* emit valuetype conversion code */
5001 emit_struct_conv (mb, klass, TRUE);
5004 mono_mb_patch_branch (mb, pos);
5007 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5008 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5009 klass->blittable || klass->enumtype) {
5013 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5016 /* Check for null */
5017 mono_mb_emit_ldarg (mb, argnum);
5018 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5021 mono_mb_emit_ldloc_addr (mb, conv_arg);
5022 mono_mb_emit_stloc (mb, 0);
5025 mono_mb_emit_ldarg (mb, argnum);
5026 mono_mb_emit_stloc (mb, 1);
5028 /* emit valuetype conversion code */
5029 emit_struct_conv (mb, klass, FALSE);
5031 mono_mb_patch_branch (mb, pos2);
5034 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5035 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5036 klass->blittable || klass->enumtype) {
5037 mono_mb_emit_stloc (mb, 3);
5042 /* load pointer to returned value type */
5043 g_assert (m->vtaddr_var);
5044 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5046 /* store the address of the source into local variable 0 */
5047 mono_mb_emit_stloc (mb, 0);
5048 /* allocate space for the native struct and
5049 * store the address into dst_ptr */
5050 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5051 m->retobj_class = klass;
5052 g_assert (m->retobj_var);
5053 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5054 mono_mb_emit_byte (mb, CEE_CONV_I);
5055 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5056 mono_mb_emit_stloc (mb, 1);
5057 mono_mb_emit_ldloc (mb, 1);
5058 mono_mb_emit_stloc (mb, m->retobj_var);
5060 /* emit valuetype conversion code */
5061 emit_struct_conv (mb, klass, FALSE);
5065 g_assert_not_reached ();
5072 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5073 MonoMarshalSpec *spec,
5074 int conv_arg, MonoType **conv_arg_type,
5075 MarshalAction action)
5079 case MARSHAL_ACTION_CONV_IN:
5080 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5082 case MARSHAL_ACTION_MANAGED_CONV_IN:
5083 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5087 MonoMethodBuilder *mb = m->mb;
5088 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5089 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5093 case MARSHAL_ACTION_CONV_IN:
5094 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5095 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5098 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5101 mono_mb_emit_ldarg (mb, argnum);
5102 mono_mb_emit_byte (mb, CEE_LDIND_I);
5104 mono_mb_emit_ldarg (mb, argnum);
5108 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5109 mono_mb_emit_exception_marshal_directive (mb, msg);
5111 mono_mb_emit_icall (mb, conv_to_icall (conv));
5113 mono_mb_emit_stloc (mb, conv_arg);
5117 case MARSHAL_ACTION_CONV_OUT:
5118 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5120 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5121 mono_mb_emit_exception_marshal_directive (mb, msg);
5125 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5126 static MonoMethod *m;
5129 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5134 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5135 mono_mb_emit_exception_marshal_directive (mb, msg);
5140 * Have to allocate a new string with the same length as the original, and
5141 * copy the contents of the buffer pointed to by CONV_ARG into it.
5143 g_assert (t->byref);
5144 mono_mb_emit_ldarg (mb, argnum);
5145 mono_mb_emit_ldloc (mb, conv_arg);
5146 mono_mb_emit_ldarg (mb, argnum);
5147 mono_mb_emit_byte (mb, CEE_LDIND_I);
5148 mono_mb_emit_managed_call (mb, m, NULL);
5149 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5150 mono_mb_emit_byte (mb, CEE_STIND_REF);
5151 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5152 mono_mb_emit_ldarg (mb, argnum);
5153 mono_mb_emit_ldloc (mb, conv_arg);
5154 mono_mb_emit_icall (mb, conv_to_icall (conv));
5155 mono_mb_emit_byte (mb, CEE_STIND_REF);
5160 mono_mb_emit_ldloc (mb, conv_arg);
5161 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5162 mono_mb_emit_icall (mb, mono_free_bstr);
5164 mono_mb_emit_icall (mb, mono_marshal_free);
5168 case MARSHAL_ACTION_PUSH:
5169 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5170 mono_mb_emit_ldloc_addr (mb, conv_arg);
5172 mono_mb_emit_ldloc (mb, conv_arg);
5175 case MARSHAL_ACTION_CONV_RESULT:
5176 mono_mb_emit_stloc (mb, 0);
5178 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5180 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5181 mono_mb_emit_exception_marshal_directive (mb, msg);
5185 mono_mb_emit_ldloc (mb, 0);
5186 mono_mb_emit_icall (mb, conv_to_icall (conv));
5187 mono_mb_emit_stloc (mb, 3);
5189 /* free the string */
5190 mono_mb_emit_ldloc (mb, 0);
5191 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5192 mono_mb_emit_icall (mb, mono_free_bstr);
5194 mono_mb_emit_icall (mb, mono_marshal_free);
5197 case MARSHAL_ACTION_MANAGED_CONV_IN:
5198 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5200 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5203 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5207 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5209 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5210 mono_mb_emit_exception_marshal_directive (mb, msg);
5214 mono_mb_emit_ldarg (mb, argnum);
5216 mono_mb_emit_byte (mb, CEE_LDIND_I);
5217 mono_mb_emit_icall (mb, conv_to_icall (conv));
5218 mono_mb_emit_stloc (mb, conv_arg);
5221 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5224 mono_mb_emit_ldarg (mb, argnum);
5225 mono_mb_emit_ldloc (mb, conv_arg);
5226 mono_mb_emit_icall (mb, conv_to_icall (conv));
5227 mono_mb_emit_byte (mb, CEE_STIND_I);
5232 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5233 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5234 /* We need to make a copy so the caller is able to free it */
5235 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5237 mono_mb_emit_icall (mb, conv_to_icall (conv));
5238 mono_mb_emit_stloc (mb, 3);
5242 g_assert_not_reached ();
5250 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5251 MonoMarshalSpec *spec, int conv_arg,
5252 MonoType **conv_arg_type, MarshalAction action)
5255 if (action == MARSHAL_ACTION_CONV_IN)
5256 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5258 MonoMethodBuilder *mb = m->mb;
5261 case MARSHAL_ACTION_CONV_IN: {
5262 MonoType *intptr_type;
5263 int dar_release_slot, pos;
5265 intptr_type = &mono_defaults.int_class->byval_arg;
5266 conv_arg = mono_mb_add_local (mb, intptr_type);
5267 *conv_arg_type = intptr_type;
5269 if (!sh_dangerous_add_ref)
5270 init_safe_handle ();
5272 mono_mb_emit_ldarg (mb, argnum);
5273 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5274 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5276 mono_mb_patch_branch (mb, pos);
5279 * My tests in show that ref SafeHandles are not really
5280 * passed as ref objects. Instead a NULL is passed as the
5283 mono_mb_emit_icon (mb, 0);
5284 mono_mb_emit_stloc (mb, conv_arg);
5288 /* Create local to hold the ref parameter to DangerousAddRef */
5289 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5291 /* set release = false; */
5292 mono_mb_emit_icon (mb, 0);
5293 mono_mb_emit_stloc (mb, dar_release_slot);
5295 /* safehandle.DangerousAddRef (ref release) */
5296 mono_mb_emit_ldarg (mb, argnum);
5297 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5298 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5300 /* Pull the handle field from SafeHandle */
5301 mono_mb_emit_ldarg (mb, argnum);
5302 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5303 mono_mb_emit_byte (mb, CEE_LDIND_I);
5304 mono_mb_emit_stloc (mb, conv_arg);
5309 case MARSHAL_ACTION_PUSH:
5311 mono_mb_emit_ldloc_addr (mb, conv_arg);
5313 mono_mb_emit_ldloc (mb, conv_arg);
5316 case MARSHAL_ACTION_CONV_OUT: {
5317 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5318 int dar_release_slot = conv_arg + 1;
5321 if (!sh_dangerous_release)
5322 init_safe_handle ();
5328 * My tests indicate that ref SafeHandles parameters are not actually
5329 * passed by ref, but instead a new Handle is created regardless of
5330 * whether a change happens in the unmanaged side.
5332 * Also, the Handle is created before calling into unmanaged code,
5333 * but we do not support that mechanism (getting to the original
5334 * handle) and it makes no difference where we create this
5336 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5338 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5341 /* refval = new SafeHandleDerived ()*/
5342 mono_mb_emit_ldarg (mb, argnum);
5343 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5344 mono_mb_emit_byte (mb, CEE_STIND_REF);
5346 /* refval.handle = returned_handle */
5347 mono_mb_emit_ldarg (mb, argnum);
5348 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5349 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5350 mono_mb_emit_ldloc (mb, conv_arg);
5351 mono_mb_emit_byte (mb, CEE_STIND_I);
5353 mono_mb_emit_ldloc (mb, dar_release_slot);
5354 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5355 mono_mb_emit_ldarg (mb, argnum);
5356 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5357 mono_mb_patch_branch (mb, label_next);
5362 case MARSHAL_ACTION_CONV_RESULT: {
5363 MonoMethod *ctor = NULL;
5364 int intptr_handle_slot;
5366 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5367 mono_mb_emit_byte (mb, CEE_POP);
5368 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5372 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5374 mono_mb_emit_byte (mb, CEE_POP);
5375 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5378 /* Store the IntPtr results into a local */
5379 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5380 mono_mb_emit_stloc (mb, intptr_handle_slot);
5382 /* Create return value */
5383 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5384 mono_mb_emit_stloc (mb, 3);
5386 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5387 mono_mb_emit_ldloc (mb, 3);
5388 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5389 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5390 mono_mb_emit_byte (mb, CEE_STIND_I);
5394 case MARSHAL_ACTION_MANAGED_CONV_IN:
5395 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5398 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5399 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5402 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5403 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5406 printf ("Unhandled case for MarshalAction: %d\n", action);
5414 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5415 MonoMarshalSpec *spec, int conv_arg,
5416 MonoType **conv_arg_type, MarshalAction action)
5419 if (action == MARSHAL_ACTION_CONV_IN)
5420 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5422 MonoMethodBuilder *mb = m->mb;
5425 case MARSHAL_ACTION_CONV_IN: {
5426 MonoType *intptr_type;
5428 intptr_type = &mono_defaults.int_class->byval_arg;
5429 conv_arg = mono_mb_add_local (mb, intptr_type);
5430 *conv_arg_type = intptr_type;
5433 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5434 mono_mb_emit_exception_marshal_directive (mb, msg);
5437 mono_mb_emit_ldarg_addr (mb, argnum);
5438 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5439 mono_mb_emit_byte (mb, CEE_ADD);
5440 mono_mb_emit_byte (mb, CEE_LDIND_I);
5441 mono_mb_emit_stloc (mb, conv_arg);
5445 case MARSHAL_ACTION_PUSH:
5446 mono_mb_emit_ldloc (mb, conv_arg);
5449 case MARSHAL_ACTION_CONV_OUT: {
5450 /* no resource release required */
5454 case MARSHAL_ACTION_CONV_RESULT: {
5455 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5456 mono_mb_emit_exception_marshal_directive (mb, msg);
5460 case MARSHAL_ACTION_MANAGED_CONV_IN:
5461 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5464 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5465 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5468 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5469 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5472 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5480 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5481 MonoMarshalSpec *spec,
5482 int conv_arg, MonoType **conv_arg_type,
5483 MarshalAction action)
5486 if (action == MARSHAL_ACTION_CONV_IN)
5487 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5489 MonoMethodBuilder *mb = m->mb;
5490 MonoClass *klass = mono_class_from_mono_type (t);
5494 case MARSHAL_ACTION_CONV_IN:
5495 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5496 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5498 m->orig_conv_args [argnum] = 0;
5500 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5501 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5502 mono_mb_emit_exception_marshal_directive (mb, msg);
5506 if (klass->delegate) {
5508 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5509 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5510 mono_mb_emit_exception_marshal_directive (mb, msg);
5512 mono_mb_emit_byte (mb, CEE_LDNULL);
5513 mono_mb_emit_stloc (mb, conv_arg);
5515 mono_mb_emit_ldarg (mb, argnum);
5516 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5517 mono_mb_emit_stloc (mb, conv_arg);
5519 } else if (klass == mono_defaults.stringbuilder_class) {
5520 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5521 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5525 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5526 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5527 mono_mb_emit_exception_marshal_directive (mb, msg);
5533 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5537 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5538 mono_mb_emit_exception_marshal_directive (mb, msg);
5542 mono_mb_emit_ldarg (mb, argnum);
5544 mono_mb_emit_byte (mb, CEE_LDIND_I);
5546 mono_mb_emit_icall (mb, conv_to_icall (conv));
5547 mono_mb_emit_stloc (mb, conv_arg);
5548 } else if (klass->blittable) {
5549 mono_mb_emit_byte (mb, CEE_LDNULL);
5550 mono_mb_emit_stloc (mb, conv_arg);
5552 mono_mb_emit_ldarg (mb, argnum);
5553 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5555 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5557 mono_mb_emit_stloc (mb, conv_arg);
5559 mono_mb_patch_branch (mb, pos);
5562 mono_mb_emit_byte (mb, CEE_LDNULL);
5563 mono_mb_emit_stloc (mb, conv_arg);
5566 /* we dont need any conversions for out parameters */
5567 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5570 mono_mb_emit_ldarg (mb, argnum);
5571 mono_mb_emit_byte (mb, CEE_LDIND_I);
5574 mono_mb_emit_ldarg (mb, argnum);
5575 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5576 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5579 /* store the address of the source into local variable 0 */
5580 mono_mb_emit_stloc (mb, 0);
5581 mono_mb_emit_ldloc (mb, 0);
5582 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5584 /* allocate space for the native struct and store the address */
5585 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5586 mono_mb_emit_byte (mb, CEE_PREFIX1);
5587 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5588 mono_mb_emit_stloc (mb, conv_arg);
5591 /* Need to store the original buffer so we can free it later */
5592 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5593 mono_mb_emit_ldloc (mb, conv_arg);
5594 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5597 /* set the src_ptr */
5598 mono_mb_emit_ldloc (mb, 0);
5599 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5600 mono_mb_emit_stloc (mb, 0);
5603 mono_mb_emit_ldloc (mb, conv_arg);
5604 mono_mb_emit_stloc (mb, 1);
5606 /* emit valuetype conversion code */
5607 emit_struct_conv (mb, klass, FALSE);
5609 mono_mb_patch_branch (mb, pos);
5613 case MARSHAL_ACTION_CONV_OUT:
5614 if (klass == mono_defaults.stringbuilder_class) {
5616 MonoMarshalNative encoding;
5617 MonoMarshalConv conv;
5619 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5620 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5622 g_assert (encoding != -1);
5625 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5629 mono_mb_emit_ldarg (mb, argnum);
5630 mono_mb_emit_ldloc (mb, conv_arg);
5633 case MONO_NATIVE_LPWSTR:
5634 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5636 case MONO_NATIVE_LPSTR:
5637 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5640 g_assert_not_reached ();
5643 mono_mb_emit_byte (mb, CEE_STIND_REF);
5645 mono_mb_emit_ldarg (mb, argnum);
5646 mono_mb_emit_ldloc (mb, conv_arg);
5648 mono_mb_emit_icall (mb, conv_to_icall (conv));
5652 mono_mb_emit_ldloc (mb, conv_arg);
5653 mono_mb_emit_icall (mb, mono_marshal_free);
5658 if (klass->delegate) {
5660 mono_mb_emit_ldarg (mb, argnum);
5661 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5662 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5663 mono_mb_emit_ldloc (mb, conv_arg);
5664 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5665 mono_mb_emit_byte (mb, CEE_STIND_REF);
5670 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5671 /* allocate a new object */
5672 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5674 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5675 mono_mb_emit_byte (mb, CEE_STIND_REF);
5678 /* dst = *argument */
5679 mono_mb_emit_ldarg (mb, argnum);
5682 mono_mb_emit_byte (mb, CEE_LDIND_I);
5684 mono_mb_emit_stloc (mb, 1);
5686 mono_mb_emit_ldloc (mb, 1);
5687 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5689 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5690 mono_mb_emit_ldloc (mb, 1);
5691 mono_mb_emit_icon (mb, sizeof (MonoObject));
5692 mono_mb_emit_byte (mb, CEE_ADD);
5693 mono_mb_emit_stloc (mb, 1);
5695 /* src = tmp_locals [i] */
5696 mono_mb_emit_ldloc (mb, conv_arg);
5697 mono_mb_emit_stloc (mb, 0);
5699 /* emit valuetype conversion code */
5700 emit_struct_conv (mb, klass, TRUE);
5702 /* Free the structure returned by the native code */
5703 emit_struct_free (mb, klass, conv_arg);
5705 if (m->orig_conv_args [argnum]) {
5707 * If the native function changed the pointer, then free
5708 * the original structure plus the new pointer.
5710 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5711 mono_mb_emit_ldloc (mb, conv_arg);
5712 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5714 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5715 g_assert (m->orig_conv_args [argnum]);
5717 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5720 mono_mb_emit_ldloc (mb, conv_arg);
5721 mono_mb_emit_icall (mb, mono_marshal_free);
5723 mono_mb_patch_branch (mb, pos2);
5727 /* Free the original structure passed to native code */
5728 emit_struct_free (mb, klass, conv_arg);
5730 mono_mb_patch_branch (mb, pos);
5733 case MARSHAL_ACTION_PUSH:
5735 mono_mb_emit_ldloc_addr (mb, conv_arg);
5737 mono_mb_emit_ldloc (mb, conv_arg);
5740 case MARSHAL_ACTION_CONV_RESULT:
5741 if (klass->delegate) {
5742 g_assert (!t->byref);
5743 mono_mb_emit_stloc (mb, 0);
5744 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5745 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5746 mono_mb_emit_ldloc (mb, 0);
5747 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5748 mono_mb_emit_stloc (mb, 3);
5751 mono_mb_emit_stloc (mb, 0);
5753 /* Make a copy since emit_conv modifies local 0 */
5754 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5755 mono_mb_emit_ldloc (mb, 0);
5756 mono_mb_emit_stloc (mb, loc);
5758 mono_mb_emit_byte (mb, CEE_LDNULL);
5759 mono_mb_emit_stloc (mb, 3);
5761 mono_mb_emit_ldloc (mb, 0);
5762 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5764 /* allocate result object */
5766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5767 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5768 mono_mb_emit_stloc (mb, 3);
5772 mono_mb_emit_ldloc (mb, 3);
5773 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5774 mono_mb_emit_stloc (mb, 1);
5776 /* emit conversion code */
5777 emit_struct_conv (mb, klass, TRUE);
5779 emit_struct_free (mb, klass, loc);
5781 /* Free the pointer allocated by unmanaged code */
5782 mono_mb_emit_ldloc (mb, loc);
5783 mono_mb_emit_icall (mb, mono_marshal_free);
5784 mono_mb_patch_branch (mb, pos);
5788 case MARSHAL_ACTION_MANAGED_CONV_IN:
5789 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5791 if (klass->delegate) {
5792 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5793 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5794 mono_mb_emit_ldarg (mb, argnum);
5796 mono_mb_emit_byte (mb, CEE_LDIND_I);
5797 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5798 mono_mb_emit_stloc (mb, conv_arg);
5802 if (klass == mono_defaults.stringbuilder_class) {
5803 MonoMarshalNative encoding;
5805 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5808 g_assert (encoding == MONO_NATIVE_LPSTR);
5810 g_assert (!t->byref);
5811 g_assert (encoding != -1);
5813 mono_mb_emit_ldarg (mb, argnum);
5814 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5815 mono_mb_emit_stloc (mb, conv_arg);
5819 /* The class can not have an automatic layout */
5820 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5821 mono_mb_emit_auto_layout_exception (mb, klass);
5825 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5826 mono_mb_emit_byte (mb, CEE_LDNULL);
5827 mono_mb_emit_stloc (mb, conv_arg);
5832 mono_mb_emit_ldarg (mb, argnum);
5836 /* Check for NULL and raise an exception */
5837 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5839 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5841 mono_mb_patch_branch (mb, pos2);
5842 mono_mb_emit_ldarg (mb, argnum);
5843 mono_mb_emit_byte (mb, CEE_LDIND_I);
5846 mono_mb_emit_stloc (mb, 0);
5848 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5849 mono_mb_emit_stloc (mb, conv_arg);
5851 mono_mb_emit_ldloc (mb, 0);
5852 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5854 /* Create and set dst */
5855 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5856 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5857 mono_mb_emit_stloc (mb, conv_arg);
5858 mono_mb_emit_ldloc (mb, conv_arg);
5859 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5860 mono_mb_emit_stloc (mb, 1);
5862 /* emit valuetype conversion code */
5863 emit_struct_conv (mb, klass, TRUE);
5865 mono_mb_patch_branch (mb, pos);
5868 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5869 if (klass->delegate) {
5871 mono_mb_emit_ldarg (mb, argnum);
5872 mono_mb_emit_ldloc (mb, conv_arg);
5873 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5874 mono_mb_emit_byte (mb, CEE_STIND_I);
5880 /* Check for null */
5881 mono_mb_emit_ldloc (mb, conv_arg);
5882 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5883 mono_mb_emit_ldarg (mb, argnum);
5884 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5885 mono_mb_emit_byte (mb, CEE_STIND_REF);
5886 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5888 mono_mb_patch_branch (mb, pos);
5891 mono_mb_emit_ldloc (mb, conv_arg);
5892 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5893 mono_mb_emit_stloc (mb, 0);
5895 /* Allocate and set dest */
5896 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5897 mono_mb_emit_byte (mb, CEE_CONV_I);
5898 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5899 mono_mb_emit_stloc (mb, 1);
5901 /* Update argument pointer */
5902 mono_mb_emit_ldarg (mb, argnum);
5903 mono_mb_emit_ldloc (mb, 1);
5904 mono_mb_emit_byte (mb, CEE_STIND_I);
5906 /* emit valuetype conversion code */
5907 emit_struct_conv (mb, klass, FALSE);
5909 mono_mb_patch_branch (mb, pos2);
5910 } else if (klass == mono_defaults.stringbuilder_class) {
5911 // FIXME: What to do here ?
5913 /* byval [Out] marshalling */
5915 /* FIXME: Handle null */
5918 mono_mb_emit_ldloc (mb, conv_arg);
5919 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5920 mono_mb_emit_stloc (mb, 0);
5923 mono_mb_emit_ldarg (mb, argnum);
5924 mono_mb_emit_stloc (mb, 1);
5926 /* emit valuetype conversion code */
5927 emit_struct_conv (mb, klass, FALSE);
5931 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5932 if (klass->delegate) {
5933 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5934 mono_mb_emit_stloc (mb, 3);
5938 /* The class can not have an automatic layout */
5939 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5940 mono_mb_emit_auto_layout_exception (mb, klass);
5944 mono_mb_emit_stloc (mb, 0);
5945 /* Check for null */
5946 mono_mb_emit_ldloc (mb, 0);
5947 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5948 mono_mb_emit_byte (mb, CEE_LDNULL);
5949 mono_mb_emit_stloc (mb, 3);
5950 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5952 mono_mb_patch_branch (mb, pos);
5955 mono_mb_emit_ldloc (mb, 0);
5956 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5957 mono_mb_emit_stloc (mb, 0);
5959 /* Allocate and set dest */
5960 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5961 mono_mb_emit_byte (mb, CEE_CONV_I);
5962 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5963 mono_mb_emit_byte (mb, CEE_DUP);
5964 mono_mb_emit_stloc (mb, 1);
5965 mono_mb_emit_stloc (mb, 3);
5967 emit_struct_conv (mb, klass, FALSE);
5969 mono_mb_patch_branch (mb, pos2);
5973 g_assert_not_reached ();
5984 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5985 MonoMarshalSpec *spec,
5986 int conv_arg, MonoType **conv_arg_type,
5987 MarshalAction action)
5989 MonoMethodBuilder *mb = m->mb;
5990 static MonoMethod *get_object_for_native_variant = NULL;
5991 static MonoMethod *get_native_variant_for_object = NULL;
5993 if (!get_object_for_native_variant)
5994 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5995 g_assert (get_object_for_native_variant);
5997 if (!get_native_variant_for_object)
5998 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5999 g_assert (get_native_variant_for_object);
6002 case MARSHAL_ACTION_CONV_IN: {
6003 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6006 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6008 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6010 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6013 mono_mb_emit_ldarg (mb, argnum);
6015 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6016 mono_mb_emit_ldloc_addr (mb, conv_arg);
6017 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6021 case MARSHAL_ACTION_CONV_OUT: {
6022 static MonoMethod *variant_clear = NULL;
6025 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6026 g_assert (variant_clear);
6029 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6030 mono_mb_emit_ldarg (mb, argnum);
6031 mono_mb_emit_ldloc_addr (mb, conv_arg);
6032 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6033 mono_mb_emit_byte (mb, CEE_STIND_REF);
6036 mono_mb_emit_ldloc_addr (mb, conv_arg);
6037 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6041 case MARSHAL_ACTION_PUSH:
6043 mono_mb_emit_ldloc_addr (mb, conv_arg);
6045 mono_mb_emit_ldloc (mb, conv_arg);
6048 case MARSHAL_ACTION_CONV_RESULT: {
6049 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6050 mono_mb_emit_exception_marshal_directive (mb, msg);
6054 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6055 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6058 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6060 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6062 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6066 mono_mb_emit_ldarg (mb, argnum);
6068 mono_mb_emit_ldarg_addr (mb, argnum);
6069 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6070 mono_mb_emit_stloc (mb, conv_arg);
6074 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6075 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6076 mono_mb_emit_ldloc (mb, conv_arg);
6077 mono_mb_emit_ldarg (mb, argnum);
6078 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6083 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6084 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6085 mono_mb_emit_exception_marshal_directive (mb, msg);
6090 g_assert_not_reached ();
6096 #endif /* DISABLE_COM */
6097 #endif /* DISABLE_JIT */
6100 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6102 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6103 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6105 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6107 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6119 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6120 MonoMarshalSpec *spec,
6121 int conv_arg, MonoType **conv_arg_type,
6122 MarshalAction action)
6126 case MARSHAL_ACTION_CONV_IN:
6127 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6129 case MARSHAL_ACTION_MANAGED_CONV_IN:
6130 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6134 MonoMethodBuilder *mb = m->mb;
6135 MonoClass *klass = mono_class_from_mono_type (t);
6136 gboolean need_convert, need_free;
6137 MonoMarshalNative encoding;
6139 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6142 case MARSHAL_ACTION_CONV_IN:
6143 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6144 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6146 if (klass->element_class->blittable) {
6147 mono_mb_emit_ldarg (mb, argnum);
6149 mono_mb_emit_byte (mb, CEE_LDIND_I);
6150 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6151 mono_mb_emit_stloc (mb, conv_arg);
6154 guint32 label1, label2, label3;
6155 int index_var, src_var, dest_ptr, esize;
6156 MonoMarshalConv conv;
6157 gboolean is_string = FALSE;
6159 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6161 eklass = klass->element_class;
6163 if (eklass == mono_defaults.string_class) {
6165 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6167 else if (eklass == mono_defaults.stringbuilder_class) {
6169 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6172 conv = (MonoMarshalConv)-1;
6174 if (is_string && conv == -1) {
6175 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6176 mono_mb_emit_exception_marshal_directive (mb, msg);
6180 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6181 mono_mb_emit_ldarg (mb, argnum);
6183 mono_mb_emit_byte (mb, CEE_LDIND_I);
6184 mono_mb_emit_stloc (mb, src_var);
6187 mono_mb_emit_ldloc (mb, src_var);
6188 mono_mb_emit_stloc (mb, conv_arg);
6189 mono_mb_emit_ldloc (mb, src_var);
6190 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6193 esize = sizeof (gpointer);
6194 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6195 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6197 esize = mono_class_native_size (eklass, NULL);
6199 /* allocate space for the native struct and store the address */
6200 mono_mb_emit_icon (mb, esize);
6201 mono_mb_emit_ldloc (mb, src_var);
6202 mono_mb_emit_byte (mb, CEE_LDLEN);
6204 if (eklass == mono_defaults.string_class) {
6205 /* Make the array bigger for the terminating null */
6206 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6207 mono_mb_emit_byte (mb, CEE_ADD);
6209 mono_mb_emit_byte (mb, CEE_MUL);
6210 mono_mb_emit_byte (mb, CEE_PREFIX1);
6211 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6212 mono_mb_emit_stloc (mb, conv_arg);
6214 mono_mb_emit_ldloc (mb, conv_arg);
6215 mono_mb_emit_stloc (mb, dest_ptr);
6217 /* Emit marshalling loop */
6218 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6219 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6220 mono_mb_emit_stloc (mb, index_var);
6221 label2 = mono_mb_get_label (mb);
6222 mono_mb_emit_ldloc (mb, index_var);
6223 mono_mb_emit_ldloc (mb, src_var);
6224 mono_mb_emit_byte (mb, CEE_LDLEN);
6225 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6227 /* Emit marshalling code */
6230 mono_mb_emit_ldloc (mb, dest_ptr);
6231 mono_mb_emit_ldloc (mb, src_var);
6232 mono_mb_emit_ldloc (mb, index_var);
6233 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6234 mono_mb_emit_icall (mb, conv_to_icall (conv));
6235 mono_mb_emit_byte (mb, CEE_STIND_I);
6237 /* set the src_ptr */
6238 mono_mb_emit_ldloc (mb, src_var);
6239 mono_mb_emit_ldloc (mb, index_var);
6240 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6241 mono_mb_emit_stloc (mb, 0);
6244 mono_mb_emit_ldloc (mb, dest_ptr);
6245 mono_mb_emit_stloc (mb, 1);
6247 /* emit valuetype conversion code */
6248 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6251 mono_mb_emit_add_to_local (mb, index_var, 1);
6252 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6254 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6256 mono_mb_patch_branch (mb, label3);
6258 if (eklass == mono_defaults.string_class) {
6259 /* Null terminate */
6260 mono_mb_emit_ldloc (mb, dest_ptr);
6261 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6262 mono_mb_emit_byte (mb, CEE_STIND_REF);
6265 mono_mb_patch_branch (mb, label1);
6270 case MARSHAL_ACTION_CONV_OUT:
6271 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6272 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);
6273 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6276 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6277 int param_num = spec->data.array_data.param_num;
6278 MonoType *param_type;
6280 param_type = m->sig->params [param_num];
6282 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6283 char *msg = g_strdup ("Not implemented.");
6284 mono_mb_emit_exception_marshal_directive (mb, msg);
6289 mono_mb_emit_ldarg (mb, argnum);
6291 /* Create the managed array */
6292 mono_mb_emit_ldarg (mb, param_num);
6293 if (m->sig->params [param_num]->byref)
6294 // FIXME: Support other types
6295 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6296 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6297 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6298 /* Store into argument */
6299 mono_mb_emit_byte (mb, CEE_STIND_I);
6303 if (need_convert || need_free) {
6304 /* FIXME: Optimize blittable case */
6306 guint32 label1, label2, label3;
6307 int index_var, src_ptr, loc, esize;
6309 eklass = klass->element_class;
6310 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6311 esize = sizeof (gpointer);
6312 else if (eklass == mono_defaults.char_class)
6313 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6315 esize = mono_class_native_size (eklass, NULL);
6316 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6317 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6320 mono_mb_emit_ldarg (mb, argnum);
6322 mono_mb_emit_byte (mb, CEE_LDIND_I);
6323 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6325 mono_mb_emit_ldloc (mb, conv_arg);
6326 mono_mb_emit_stloc (mb, src_ptr);
6328 /* Emit marshalling loop */
6329 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6330 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6331 mono_mb_emit_stloc (mb, index_var);
6332 label2 = mono_mb_get_label (mb);
6333 mono_mb_emit_ldloc (mb, index_var);
6334 mono_mb_emit_ldarg (mb, argnum);
6336 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6337 mono_mb_emit_byte (mb, CEE_LDLEN);
6338 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6340 /* Emit marshalling code */
6342 if (eklass == mono_defaults.stringbuilder_class) {
6343 gboolean need_free2;
6344 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6346 g_assert (conv != -1);
6349 mono_mb_emit_ldarg (mb, argnum);
6351 mono_mb_emit_byte (mb, CEE_LDIND_I);
6352 mono_mb_emit_ldloc (mb, index_var);
6353 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6356 mono_mb_emit_ldloc (mb, src_ptr);
6357 mono_mb_emit_byte (mb, CEE_LDIND_I);
6359 mono_mb_emit_icall (mb, conv_to_icall (conv));
6363 mono_mb_emit_ldloc (mb, src_ptr);
6364 mono_mb_emit_byte (mb, CEE_LDIND_I);
6366 mono_mb_emit_icall (mb, mono_marshal_free);
6369 else if (eklass == mono_defaults.string_class) {
6372 mono_mb_emit_ldloc (mb, src_ptr);
6373 mono_mb_emit_byte (mb, CEE_LDIND_I);
6375 mono_mb_emit_icall (mb, mono_marshal_free);
6380 /* set the src_ptr */
6381 mono_mb_emit_ldloc (mb, src_ptr);
6382 mono_mb_emit_stloc (mb, 0);
6385 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6388 mono_mb_emit_ldloc (mb, index_var);
6389 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6390 mono_mb_emit_stloc (mb, 1);
6392 /* emit valuetype conversion code */
6393 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6397 mono_mb_emit_ldloc (mb, src_ptr);
6398 mono_mb_emit_stloc (mb, loc);
6399 mono_mb_emit_ldloc (mb, loc);
6401 emit_struct_free (mb, eklass, loc);
6405 mono_mb_emit_add_to_local (mb, index_var, 1);
6406 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6408 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6410 mono_mb_patch_branch (mb, label1);
6411 mono_mb_patch_branch (mb, label3);
6414 if (klass->element_class->blittable) {
6415 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6417 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6420 mono_mb_emit_ldloc (mb, conv_arg);
6421 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6426 case MARSHAL_ACTION_PUSH:
6428 mono_mb_emit_ldloc_addr (mb, conv_arg);
6430 mono_mb_emit_ldloc (mb, conv_arg);
6433 case MARSHAL_ACTION_CONV_RESULT:
6434 /* fixme: we need conversions here */
6435 mono_mb_emit_stloc (mb, 3);
6438 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6440 guint32 label1, label2, label3;
6441 int index_var, src_ptr, esize, param_num, num_elem;
6442 MonoMarshalConv conv;
6443 gboolean is_string = FALSE;
6445 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6446 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6449 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6450 mono_mb_emit_exception_marshal_directive (mb, msg);
6454 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6455 mono_mb_emit_exception_marshal_directive (mb, msg);
6458 if (spec->native != MONO_NATIVE_LPARRAY) {
6459 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6460 mono_mb_emit_exception_marshal_directive (mb, msg);
6464 /* FIXME: t is from the method which is wrapped, not the delegate type */
6465 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6467 param_num = spec->data.array_data.param_num;
6468 num_elem = spec->data.array_data.num_elem;
6469 if (spec->data.array_data.elem_mult == 0)
6470 /* param_num is not specified */
6473 if (param_num == -1) {
6474 if (num_elem <= 0) {
6475 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6476 mono_mb_emit_exception_marshal_directive (mb, msg);
6481 /* FIXME: Optimize blittable case */
6483 eklass = klass->element_class;
6484 if (eklass == mono_defaults.string_class) {
6486 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6488 else if (eklass == mono_defaults.stringbuilder_class) {
6490 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6493 conv = (MonoMarshalConv)-1;
6495 mono_marshal_load_type_info (eklass);
6498 esize = sizeof (gpointer);
6500 esize = mono_class_native_size (eklass, NULL);
6501 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6503 mono_mb_emit_byte (mb, CEE_LDNULL);
6504 mono_mb_emit_stloc (mb, conv_arg);
6506 /* Check param index */
6507 if (param_num != -1) {
6508 if (param_num >= m->sig->param_count) {
6509 char *msg = g_strdup ("Array size control parameter index is out of range.");
6510 mono_mb_emit_exception_marshal_directive (mb, msg);
6513 switch (m->sig->params [param_num]->type) {
6526 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6527 mono_mb_emit_exception_marshal_directive (mb, msg);
6534 mono_mb_emit_ldarg (mb, argnum);
6535 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6537 mono_mb_emit_ldarg (mb, argnum);
6538 mono_mb_emit_stloc (mb, src_ptr);
6540 /* Create managed array */
6542 * The LPArray marshalling spec says that sometimes param_num starts
6543 * from 1, sometimes it starts from 0. But MS seems to allways start
6547 if (param_num == -1) {
6548 mono_mb_emit_icon (mb, num_elem);
6550 mono_mb_emit_ldarg (mb, param_num);
6552 mono_mb_emit_icon (mb, num_elem);
6553 mono_mb_emit_byte (mb, CEE_ADD);
6555 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6558 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6559 mono_mb_emit_stloc (mb, conv_arg);
6561 if (eklass->blittable) {
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_byte (mb, CEE_CONV_I);
6564 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6565 mono_mb_emit_byte (mb, CEE_ADD);
6566 mono_mb_emit_ldarg (mb, argnum);
6567 mono_mb_emit_ldloc (mb, conv_arg);
6568 mono_mb_emit_byte (mb, CEE_LDLEN);
6569 mono_mb_emit_icon (mb, esize);
6570 mono_mb_emit_byte (mb, CEE_MUL);
6571 mono_mb_emit_byte (mb, CEE_PREFIX1);
6572 mono_mb_emit_byte (mb, CEE_CPBLK);
6576 /* Emit marshalling loop */
6577 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6579 mono_mb_emit_stloc (mb, index_var);
6580 label2 = mono_mb_get_label (mb);
6581 mono_mb_emit_ldloc (mb, index_var);
6582 mono_mb_emit_ldloc (mb, conv_arg);
6583 mono_mb_emit_byte (mb, CEE_LDLEN);
6584 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6586 /* Emit marshalling code */
6588 g_assert (conv != -1);
6590 mono_mb_emit_ldloc (mb, conv_arg);
6591 mono_mb_emit_ldloc (mb, index_var);
6593 mono_mb_emit_ldloc (mb, src_ptr);
6594 mono_mb_emit_byte (mb, CEE_LDIND_I);
6596 mono_mb_emit_icall (mb, conv_to_icall (conv));
6597 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6600 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6601 mono_mb_emit_exception_marshal_directive (mb, msg);
6605 mono_mb_emit_add_to_local (mb, index_var, 1);
6606 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6608 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6610 mono_mb_patch_branch (mb, label1);
6611 mono_mb_patch_branch (mb, label3);
6615 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6617 guint32 label1, label2, label3;
6618 int index_var, dest_ptr, esize, param_num, num_elem;
6619 MonoMarshalConv conv;
6620 gboolean is_string = FALSE;
6623 /* Already handled in CONV_IN */
6626 /* These are already checked in CONV_IN */
6627 g_assert (!t->byref);
6628 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6629 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6631 param_num = spec->data.array_data.param_num;
6632 num_elem = spec->data.array_data.num_elem;
6634 if (spec->data.array_data.elem_mult == 0)
6635 /* param_num is not specified */
6638 if (param_num == -1) {
6639 if (num_elem <= 0) {
6640 g_assert_not_reached ();
6644 /* FIXME: Optimize blittable case */
6646 eklass = klass->element_class;
6647 if (eklass == mono_defaults.string_class) {
6649 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6651 else if (eklass == mono_defaults.stringbuilder_class) {
6653 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6656 conv = (MonoMarshalConv)-1;
6658 mono_marshal_load_type_info (eklass);
6661 esize = sizeof (gpointer);
6663 esize = mono_class_native_size (eklass, NULL);
6665 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6668 mono_mb_emit_ldloc (mb, conv_arg);
6669 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6671 mono_mb_emit_ldarg (mb, argnum);
6672 mono_mb_emit_stloc (mb, dest_ptr);
6674 if (eklass->blittable) {
6676 mono_mb_emit_ldarg (mb, argnum);
6678 mono_mb_emit_ldloc (mb, conv_arg);
6679 mono_mb_emit_byte (mb, CEE_CONV_I);
6680 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6681 mono_mb_emit_byte (mb, CEE_ADD);
6683 mono_mb_emit_ldloc (mb, conv_arg);
6684 mono_mb_emit_byte (mb, CEE_LDLEN);
6685 mono_mb_emit_icon (mb, esize);
6686 mono_mb_emit_byte (mb, CEE_MUL);
6687 mono_mb_emit_byte (mb, CEE_PREFIX1);
6688 mono_mb_emit_byte (mb, CEE_CPBLK);
6692 /* Emit marshalling loop */
6693 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6694 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6695 mono_mb_emit_stloc (mb, index_var);
6696 label2 = mono_mb_get_label (mb);
6697 mono_mb_emit_ldloc (mb, index_var);
6698 mono_mb_emit_ldloc (mb, conv_arg);
6699 mono_mb_emit_byte (mb, CEE_LDLEN);
6700 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6702 /* Emit marshalling code */
6704 g_assert (conv != -1);
6707 mono_mb_emit_ldloc (mb, dest_ptr);
6710 mono_mb_emit_ldloc (mb, conv_arg);
6711 mono_mb_emit_ldloc (mb, index_var);
6713 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6715 mono_mb_emit_icall (mb, conv_to_icall (conv));
6716 mono_mb_emit_byte (mb, CEE_STIND_I);
6719 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6720 mono_mb_emit_exception_marshal_directive (mb, msg);
6724 mono_mb_emit_add_to_local (mb, index_var, 1);
6725 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6727 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6729 mono_mb_patch_branch (mb, label1);
6730 mono_mb_patch_branch (mb, label3);
6734 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6736 guint32 label1, label2, label3;
6737 int index_var, src, dest, esize;
6738 MonoMarshalConv conv = (MonoMarshalConv)-1;
6739 gboolean is_string = FALSE;
6741 g_assert (!t->byref);
6743 eklass = klass->element_class;
6745 mono_marshal_load_type_info (eklass);
6747 if (eklass == mono_defaults.string_class) {
6749 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6752 g_assert_not_reached ();
6756 esize = sizeof (gpointer);
6757 else if (eklass == mono_defaults.char_class)
6758 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6760 esize = mono_class_native_size (eklass, NULL);
6762 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6763 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6765 mono_mb_emit_stloc (mb, src);
6766 mono_mb_emit_ldloc (mb, src);
6767 mono_mb_emit_stloc (mb, 3);
6769 /* Check for null */
6770 mono_mb_emit_ldloc (mb, src);
6771 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6773 /* Allocate native array */
6774 mono_mb_emit_icon (mb, esize);
6775 mono_mb_emit_ldloc (mb, src);
6776 mono_mb_emit_byte (mb, CEE_LDLEN);
6778 if (eklass == mono_defaults.string_class) {
6779 /* Make the array bigger for the terminating null */
6780 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6781 mono_mb_emit_byte (mb, CEE_ADD);
6783 mono_mb_emit_byte (mb, CEE_MUL);
6784 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6785 mono_mb_emit_stloc (mb, dest);
6786 mono_mb_emit_ldloc (mb, dest);
6787 mono_mb_emit_stloc (mb, 3);
6789 /* Emit marshalling loop */
6790 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6791 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6792 mono_mb_emit_stloc (mb, index_var);
6793 label2 = mono_mb_get_label (mb);
6794 mono_mb_emit_ldloc (mb, index_var);
6795 mono_mb_emit_ldloc (mb, src);
6796 mono_mb_emit_byte (mb, CEE_LDLEN);
6797 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6799 /* Emit marshalling code */
6801 g_assert (conv != -1);
6804 mono_mb_emit_ldloc (mb, dest);
6807 mono_mb_emit_ldloc (mb, src);
6808 mono_mb_emit_ldloc (mb, index_var);
6810 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6812 mono_mb_emit_icall (mb, conv_to_icall (conv));
6813 mono_mb_emit_byte (mb, CEE_STIND_I);
6816 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6817 mono_mb_emit_exception_marshal_directive (mb, msg);
6821 mono_mb_emit_add_to_local (mb, index_var, 1);
6822 mono_mb_emit_add_to_local (mb, dest, esize);
6824 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6826 mono_mb_patch_branch (mb, label3);
6827 mono_mb_patch_branch (mb, label1);
6831 g_assert_not_reached ();
6838 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6841 return &mono_defaults.int32_class->byval_arg;
6843 switch (spec->native) {
6844 case MONO_NATIVE_I1:
6845 case MONO_NATIVE_U1:
6846 return &mono_defaults.byte_class->byval_arg;
6847 case MONO_NATIVE_VARIANTBOOL:
6848 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6849 return &mono_defaults.int16_class->byval_arg;
6850 case MONO_NATIVE_BOOLEAN:
6851 return &mono_defaults.int32_class->byval_arg;
6853 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6854 return &mono_defaults.int32_class->byval_arg;
6860 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6862 MonoClass* conv_arg_class = mono_defaults.int32_class;
6864 switch (spec->native) {
6865 case MONO_NATIVE_I1:
6866 case MONO_NATIVE_U1:
6867 conv_arg_class = mono_defaults.byte_class;
6868 if (ldop) *ldop = CEE_LDIND_I1;
6870 case MONO_NATIVE_VARIANTBOOL:
6871 conv_arg_class = mono_defaults.int16_class;
6872 if (ldop) *ldop = CEE_LDIND_I2;
6874 case MONO_NATIVE_BOOLEAN:
6877 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6880 return conv_arg_class;
6884 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6885 MonoMarshalSpec *spec,
6886 int conv_arg, MonoType **conv_arg_type,
6887 MarshalAction action)
6891 case MARSHAL_ACTION_CONV_IN:
6893 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6895 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6898 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6899 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6901 *conv_arg_type = &conv_arg_class->this_arg;
6903 *conv_arg_type = &conv_arg_class->byval_arg;
6909 MonoMethodBuilder *mb = m->mb;
6912 case MARSHAL_ACTION_CONV_IN: {
6913 MonoType *local_type;
6915 guint8 ldc_op = CEE_LDC_I4_1;
6917 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6919 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6921 *conv_arg_type = local_type;
6922 conv_arg = mono_mb_add_local (mb, local_type);
6924 mono_mb_emit_ldarg (mb, argnum);
6926 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6927 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6928 mono_mb_emit_byte (mb, ldc_op);
6929 mono_mb_emit_stloc (mb, conv_arg);
6930 mono_mb_patch_branch (mb, label_false);
6935 case MARSHAL_ACTION_CONV_OUT:
6937 int label_false, label_end;
6941 mono_mb_emit_ldarg (mb, argnum);
6942 mono_mb_emit_ldloc (mb, conv_arg);
6944 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6945 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6947 label_end = mono_mb_emit_branch (mb, CEE_BR);
6948 mono_mb_patch_branch (mb, label_false);
6949 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6950 mono_mb_patch_branch (mb, label_end);
6952 mono_mb_emit_byte (mb, CEE_STIND_I1);
6956 case MARSHAL_ACTION_PUSH:
6958 mono_mb_emit_ldloc_addr (mb, conv_arg);
6960 mono_mb_emit_ldloc (mb, conv_arg);
6962 mono_mb_emit_ldarg (mb, argnum);
6965 case MARSHAL_ACTION_CONV_RESULT:
6966 /* maybe we need to make sure that it fits within 8 bits */
6967 mono_mb_emit_stloc (mb, 3);
6970 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6971 MonoClass* conv_arg_class = mono_defaults.int32_class;
6972 guint8 ldop = CEE_LDIND_I4;
6973 int label_null, label_false;
6975 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6976 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6979 *conv_arg_type = &conv_arg_class->this_arg;
6981 *conv_arg_type = &conv_arg_class->byval_arg;
6984 mono_mb_emit_ldarg (mb, argnum);
6988 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6989 mono_mb_emit_ldarg (mb, argnum);
6990 mono_mb_emit_byte (mb, ldop);
6994 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6995 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6996 mono_mb_emit_stloc (mb, conv_arg);
6997 mono_mb_patch_branch (mb, label_false);
7000 mono_mb_patch_branch (mb, label_null);
7004 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7005 guint8 stop = CEE_STIND_I4;
7006 guint8 ldc_op = CEE_LDC_I4_1;
7007 int label_null,label_false, label_end;;
7012 switch (spec->native) {
7013 case MONO_NATIVE_I1:
7014 case MONO_NATIVE_U1:
7015 stop = CEE_STIND_I1;
7017 case MONO_NATIVE_VARIANTBOOL:
7018 stop = CEE_STIND_I2;
7019 ldc_op = CEE_LDC_I4_M1;
7027 mono_mb_emit_ldarg (mb, argnum);
7028 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7030 mono_mb_emit_ldarg (mb, argnum);
7031 mono_mb_emit_ldloc (mb, conv_arg);
7033 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7034 mono_mb_emit_byte (mb, ldc_op);
7035 label_end = mono_mb_emit_branch (mb, CEE_BR);
7037 mono_mb_patch_branch (mb, label_false);
7038 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7039 mono_mb_patch_branch (mb, label_end);
7041 mono_mb_emit_byte (mb, stop);
7042 mono_mb_patch_branch (mb, label_null);
7047 g_assert_not_reached ();
7054 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7055 MonoMarshalSpec *spec, int conv_arg,
7056 MonoType **conv_arg_type, MarshalAction action)
7059 MonoMethodBuilder *mb = m->mb;
7062 case MARSHAL_ACTION_CONV_IN:
7063 /* MS seems to allow this in some cases, ie. bxc #158 */
7065 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7066 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7067 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7072 case MARSHAL_ACTION_PUSH:
7073 mono_mb_emit_ldarg (mb, argnum);
7076 case MARSHAL_ACTION_CONV_RESULT:
7077 /* no conversions necessary */
7078 mono_mb_emit_stloc (mb, 3);
7089 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7090 MonoMarshalSpec *spec, int conv_arg,
7091 MonoType **conv_arg_type, MarshalAction action)
7094 MonoMethodBuilder *mb = m->mb;
7097 case MARSHAL_ACTION_PUSH:
7098 /* fixme: dont know how to marshal that. We cant simply
7099 * convert it to a one byte UTF8 character, because an
7100 * unicode character may need more that one byte in UTF8 */
7101 mono_mb_emit_ldarg (mb, argnum);
7104 case MARSHAL_ACTION_CONV_RESULT:
7105 /* fixme: we need conversions here */
7106 mono_mb_emit_stloc (mb, 3);
7117 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7118 MonoMarshalSpec *spec, int conv_arg,
7119 MonoType **conv_arg_type, MarshalAction action)
7122 MonoMethodBuilder *mb = m->mb;
7125 case MARSHAL_ACTION_PUSH:
7126 mono_mb_emit_ldarg (mb, argnum);
7129 case MARSHAL_ACTION_CONV_RESULT:
7130 /* no conversions necessary */
7131 mono_mb_emit_stloc (mb, 3);
7142 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7143 MonoMarshalSpec *spec, int conv_arg,
7144 MonoType **conv_arg_type, MarshalAction action)
7146 /* Ensure that we have marshalling info for this param */
7147 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7149 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7150 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7152 if (spec && spec->native == MONO_NATIVE_ASANY)
7153 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7156 case MONO_TYPE_VALUETYPE:
7157 if (t->data.klass == mono_defaults.handleref_class)
7158 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7160 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7161 case MONO_TYPE_STRING:
7162 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7163 case MONO_TYPE_CLASS:
7164 case MONO_TYPE_OBJECT:
7166 if (spec && spec->native == MONO_NATIVE_STRUCT)
7167 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7169 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7170 spec->native == MONO_NATIVE_IDISPATCH ||
7171 spec->native == MONO_NATIVE_INTERFACE))
7172 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7173 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7174 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7175 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7176 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7179 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7180 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7181 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7184 case MONO_TYPE_ARRAY:
7185 case MONO_TYPE_SZARRAY:
7186 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7187 case MONO_TYPE_BOOLEAN:
7188 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7190 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7191 case MONO_TYPE_CHAR:
7192 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7205 case MONO_TYPE_FNPTR:
7206 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7207 case MONO_TYPE_GENERICINST:
7208 if (mono_type_generic_inst_is_valuetype (t))
7209 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7211 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7219 * mono_marshal_emit_native_wrapper:
7220 * @image: the image to use for looking up custom marshallers
7221 * @sig: The signature of the native function
7222 * @piinfo: Marshalling information
7223 * @mspecs: Marshalling information
7224 * @aot: whenever the created method will be compiled by the AOT compiler
7225 * @method: if non-NULL, the pinvoke method to call
7226 * @check_exceptions: Whenever to check for pending exceptions after the native call
7227 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7229 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7232 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)
7234 EmitMarshalContext m;
7235 MonoMethodSignature *csig;
7237 MonoExceptionClause *clause;
7238 int i, argnum, *tmp_locals;
7239 int type, param_shift = 0;
7240 static MonoMethodSignature *get_last_error_sig = NULL;
7241 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7244 memset (&m, 0, sizeof (m));
7249 /* we copy the signature, so that we can set pinvoke to 0 */
7251 /* The function address is passed as the first argument */
7252 g_assert (!sig->hasthis);
7255 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7263 /* we allocate local for use with emit_struct_conv() */
7264 /* allocate local 0 (pointer) src_ptr */
7265 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7266 /* allocate local 1 (pointer) dst_ptr */
7267 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7268 /* allocate local 2 (boolean) delete_old */
7269 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7271 /* delete_old = FALSE */
7272 mono_mb_emit_icon (mb, 0);
7273 mono_mb_emit_stloc (mb, 2);
7275 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7276 /* allocate local 3 to store the return value */
7277 mono_mb_add_local (mb, sig->ret);
7280 if (mono_threads_is_coop_enabled ()) {
7281 /* local 4, dummy local used to get a stack address for suspend funcs */
7282 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7283 /* local 5, the local to be used when calling the suspend funcs */
7284 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7285 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7287 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7288 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7291 if (MONO_TYPE_ISSTRUCT (sig->ret))
7292 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7294 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7295 /* Return type custom marshaling */
7297 * Since we can't determine the return type of the unmanaged function,
7298 * we assume it returns a pointer, and pass that pointer to
7299 * MarshalNativeToManaged.
7301 csig->ret = &mono_defaults.int_class->byval_arg;
7304 /* we first do all conversions */
7305 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7306 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7308 for (i = 0; i < sig->param_count; i ++) {
7309 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7312 // In coop mode need to register blocking state during native call
7313 if (mono_threads_is_coop_enabled ()) {
7314 // Perform an extra, early lookup of the function address, so any exceptions
7315 // potentially resulting from the lookup occur before entering blocking mode.
7316 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7317 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7318 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7319 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7322 clause->try_offset = mono_mb_get_label (mb);
7324 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7325 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7326 mono_mb_emit_stloc (mb, coop_gc_var);
7329 /* push all arguments */
7332 mono_mb_emit_byte (mb, CEE_LDARG_0);
7334 for (i = 0; i < sig->param_count; i++) {
7335 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7338 /* call the native method */
7340 mono_mb_emit_byte (mb, CEE_LDARG_0);
7341 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7342 mono_mb_emit_byte (mb, CEE_LDIND_I);
7343 mono_mb_emit_calli (mb, csig);
7344 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7346 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7348 g_assert_not_reached ();
7353 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7355 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7356 mono_mb_emit_calli (mb, csig);
7358 mono_mb_emit_native_call (mb, csig, func);
7362 /* Set LastError if needed */
7363 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7364 if (!get_last_error_sig) {
7365 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7366 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7367 get_last_error_sig->pinvoke = 1;
7372 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7373 * clobber its value.
7375 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7376 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7378 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7382 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7383 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7384 mono_class_init (klass);
7385 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7386 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7387 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7388 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7389 mono_mb_emit_stloc (mb, m.vtaddr_var);
7393 /* Unblock before converting the result, since that can involve calls into the runtime */
7394 if (mono_threads_is_coop_enabled ()) {
7395 mono_mb_emit_ldloc (mb, coop_gc_var);
7396 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7397 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7398 mono_mb_emit_icon (mb, 1);
7399 mono_mb_emit_stloc (mb, coop_unblocked_var);
7402 /* convert the result */
7403 if (!sig->ret->byref) {
7404 MonoMarshalSpec *spec = mspecs [0];
7405 type = sig->ret->type;
7407 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7408 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7412 case MONO_TYPE_VOID:
7414 case MONO_TYPE_VALUETYPE:
7415 klass = sig->ret->data.klass;
7416 if (klass->enumtype) {
7417 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7420 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7434 case MONO_TYPE_FNPTR:
7435 case MONO_TYPE_STRING:
7436 case MONO_TYPE_CLASS:
7437 case MONO_TYPE_OBJECT:
7438 case MONO_TYPE_BOOLEAN:
7439 case MONO_TYPE_ARRAY:
7440 case MONO_TYPE_SZARRAY:
7441 case MONO_TYPE_CHAR:
7443 case MONO_TYPE_GENERICINST:
7444 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7446 case MONO_TYPE_TYPEDBYREF:
7448 g_warning ("return type 0x%02x unknown", sig->ret->type);
7449 g_assert_not_reached ();
7453 mono_mb_emit_stloc (mb, 3);
7456 if (mono_threads_is_coop_enabled ()) {
7459 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7461 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7462 clause->handler_offset = mono_mb_get_label (mb);
7464 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7465 mono_mb_emit_icon (mb, 1);
7466 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7468 mono_mb_emit_ldloc (mb, coop_gc_var);
7469 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7470 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7472 mono_mb_patch_branch (mb, pos);
7474 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7476 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7478 mono_mb_patch_branch (mb, leave_pos);
7482 * Need to call this after converting the result since MONO_VTADDR needs
7483 * to be adjacent to the call instruction.
7485 if (check_exceptions)
7486 emit_thread_interrupt_checkpoint (mb);
7488 /* we need to convert byref arguments back and free string arrays */
7489 for (i = 0; i < sig->param_count; i++) {
7490 MonoType *t = sig->params [i];
7491 MonoMarshalSpec *spec = mspecs [i + 1];
7493 argnum = i + param_shift;
7495 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7496 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7501 case MONO_TYPE_STRING:
7502 case MONO_TYPE_VALUETYPE:
7503 case MONO_TYPE_CLASS:
7504 case MONO_TYPE_OBJECT:
7505 case MONO_TYPE_SZARRAY:
7506 case MONO_TYPE_BOOLEAN:
7507 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7514 if (!MONO_TYPE_IS_VOID(sig->ret))
7515 mono_mb_emit_ldloc (mb, 3);
7517 mono_mb_emit_byte (mb, CEE_RET);
7519 if (mono_threads_is_coop_enabled ()) {
7520 mono_mb_set_clauses (mb, 1, clause);
7523 #endif /* DISABLE_JIT */
7526 * mono_marshal_get_native_wrapper:
7527 * @method: The MonoMethod to wrap.
7528 * @check_exceptions: Whenever to check for pending exceptions
7530 * generates IL code for the pinvoke wrapper (the generated method
7531 * calls the unmanaged code in piinfo->addr)
7532 * The wrapper info for the wrapper is a WrapperInfo structure.
7535 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7537 MonoMethodSignature *sig, *csig;
7538 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7539 MonoMethodBuilder *mb;
7540 MonoMarshalSpec **mspecs;
7543 gboolean pinvoke = FALSE;
7546 const char *exc_class = "MissingMethodException";
7547 const char *exc_arg = NULL;
7550 g_assert (method != NULL);
7551 g_assert (mono_method_signature (method)->pinvoke);
7553 GHashTable **cache_ptr;
7556 if (check_exceptions)
7557 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7559 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7561 if (check_exceptions)
7562 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7564 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7567 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7569 if ((res = mono_marshal_find_in_cache (cache, method)))
7572 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7573 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7577 return mono_cominterop_get_native_wrapper (method);
7579 g_assert_not_reached ();
7583 sig = mono_method_signature (method);
7585 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7586 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7589 if (!piinfo->addr) {
7591 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7592 exc_arg = "Method contains unsupported native code";
7594 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7596 piinfo->addr = mono_lookup_internal_call (method);
7600 /* hack - redirect certain string constructors to CreateString */
7601 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7602 g_assert (!pinvoke);
7603 g_assert (method->string_ctor);
7604 g_assert (sig->hasthis);
7606 /* CreateString returns a value */
7607 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7608 csig->ret = &mono_defaults.string_class->byval_arg;
7612 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7613 if (!strcmp ("CreateString", res->name) &&
7614 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7617 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7618 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7620 /* create a wrapper to preserve .ctor in stack trace */
7621 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7624 mono_mb_emit_byte (mb, CEE_LDARG_0);
7625 for (i = 1; i <= csig->param_count; i++)
7626 mono_mb_emit_ldarg (mb, i);
7627 mono_mb_emit_managed_call (mb, res, NULL);
7628 mono_mb_emit_byte (mb, CEE_RET);
7631 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7632 info->d.string_ctor.method = method;
7634 /* use native_wrapper_cache because internal calls are looked up there */
7635 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7636 csig->param_count + 1, info, NULL);
7643 /* exception will be thrown */
7644 piinfo->addr = NULL;
7645 g_warning ("cannot find CreateString for .ctor");
7648 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7650 mb->method->save_lmf = 1;
7653 * In AOT mode and embedding scenarios, it is possible that the icall is not
7654 * registered in the runtime doing the AOT compilation.
7656 if (!piinfo->addr && !aot) {
7658 mono_mb_emit_exception (mb, exc_class, exc_arg);
7660 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7661 info->d.managed_to_native.method = method;
7663 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7665 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7666 csig->param_count + 16, info, NULL);
7672 /* internal calls: we simply push all arguments and call the method (no conversions) */
7673 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7675 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7677 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7679 /* hack - string constructors returns a value */
7680 if (method->string_ctor)
7681 csig->ret = &mono_defaults.string_class->byval_arg;
7688 * Add a null check since public icalls can be called with 'call' which
7689 * does no such check.
7691 mono_mb_emit_byte (mb, CEE_LDARG_0);
7692 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7693 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7694 mono_mb_patch_branch (mb, pos);
7696 mono_mb_emit_byte (mb, CEE_LDARG_0);
7699 for (i = 0; i < sig->param_count; i++)
7700 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7704 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7705 mono_mb_emit_calli (mb, csig);
7707 g_assert (piinfo->addr);
7708 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7710 if (check_exceptions)
7711 emit_thread_interrupt_checkpoint (mb);
7712 mono_mb_emit_byte (mb, CEE_RET);
7714 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7715 info->d.managed_to_native.method = method;
7717 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7719 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7728 g_assert (piinfo->addr);
7731 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7732 mono_method_get_marshal_info (method, mspecs);
7734 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7736 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7737 info->d.managed_to_native.method = method;
7739 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7741 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7746 for (i = sig->param_count; i >= 0; i--)
7748 mono_metadata_free_marshal_spec (mspecs [i]);
7752 /* mono_method_print_code (res); */
7758 * mono_marshal_get_native_func_wrapper:
7759 * @image: The image to use for memory allocation and for looking up custom marshallers.
7760 * @sig: The signature of the function
7761 * @func: The native function to wrap
7763 * Returns a wrapper method around native functions, similar to the pinvoke
7767 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7768 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7770 MonoMethodSignature *csig;
7772 SignaturePointerPair key, *new_key;
7773 MonoMethodBuilder *mb;
7782 // Generic types are not safe to place in MonoImage caches.
7783 g_assert (!sig->is_inflated);
7785 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7786 if ((res = mono_marshal_find_in_cache (cache, &key)))
7789 name = g_strdup_printf ("wrapper_native_%p", func);
7790 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7791 mb->method->save_lmf = 1;
7794 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7797 csig = mono_metadata_signature_dup_full (image, sig);
7800 new_key = g_new (SignaturePointerPair,1);
7801 new_key->sig = csig;
7802 new_key->pointer = func;
7804 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7810 mono_marshal_set_wrapper_info (res, NULL);
7816 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7820 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7822 MonoMethodSignature *sig, *csig;
7823 MonoMethodBuilder *mb;
7828 MonoMethodPInvoke mpiinfo;
7829 MonoMethodPInvoke *piinfo = &mpiinfo;
7830 MonoMarshalSpec **mspecs;
7831 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7832 MonoImage *image = invoke->klass->image;
7835 // FIXME: include UnmanagedFunctionPointerAttribute info
7838 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7840 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7842 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7845 memset (&mpiinfo, 0, sizeof (mpiinfo));
7846 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7848 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7849 mono_method_get_marshal_info (invoke, mspecs);
7850 /* Freed below so don't alloc from mempool */
7851 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7854 name = g_strdup_printf ("wrapper_aot_native");
7855 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7856 mb->method->save_lmf = 1;
7859 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7862 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7863 info->d.managed_to_native.method = invoke;
7865 g_assert (!sig->hasthis);
7866 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7868 res = mono_mb_create_and_cache_full (cache, invoke,
7869 mb, csig, csig->param_count + 16,
7873 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7875 mono_metadata_free_marshal_spec (mspecs [i]);
7883 * mono_marshal_emit_managed_wrapper:
7885 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7886 * the delegate which wraps the managed method to be called. For closed delegates,
7887 * it could have fewer parameters than the method it wraps.
7888 * THIS_LOC is the memory location where the target of the delegate is stored.
7891 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7894 MonoMethodSignature *sig, *csig;
7900 /* we first do all conversions */
7901 for (i = 0; i < sig->param_count; i ++) {
7902 MonoType *t = sig->params [i];
7905 case MONO_TYPE_OBJECT:
7906 case MONO_TYPE_CLASS:
7907 case MONO_TYPE_VALUETYPE:
7908 case MONO_TYPE_ARRAY:
7909 case MONO_TYPE_SZARRAY:
7910 case MONO_TYPE_STRING:
7911 case MONO_TYPE_BOOLEAN:
7912 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7916 if (!sig->ret->byref) {
7917 switch (sig->ret->type) {
7918 case MONO_TYPE_STRING:
7919 csig->ret = &mono_defaults.int_class->byval_arg;
7926 MonoMethodSignature *sig, *csig;
7927 MonoExceptionClause *clause;
7930 gboolean closed = FALSE;
7935 /* allocate local 0 (pointer) src_ptr */
7936 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7937 /* allocate local 1 (pointer) dst_ptr */
7938 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7939 /* allocate local 2 (boolean) delete_old */
7940 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7942 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7943 /* Closed delegate */
7944 g_assert (sig->param_count == invoke_sig->param_count + 1);
7946 /* Use a new signature without the first argument */
7947 sig = mono_metadata_signature_dup (sig);
7948 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7949 sig->param_count --;
7952 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7953 /* allocate local 3 to store the return value */
7954 mono_mb_add_local (mb, sig->ret);
7957 if (MONO_TYPE_ISSTRUCT (sig->ret))
7958 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7962 * mono_jit_attach ();
7966 * ret = method (...);
7968 * mono_jit_detach ();
7974 if (mono_threads_is_coop_enabled ()) {
7975 clause = g_new0 (MonoExceptionClause, 1);
7976 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7979 mono_mb_emit_icon (mb, 0);
7980 mono_mb_emit_stloc (mb, 2);
7982 if (mono_threads_is_coop_enabled ()) {
7984 clause->try_offset = mono_mb_get_label (mb);
7988 * Might need to attach the thread to the JIT or change the
7989 * domain for the callback.
7991 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7993 * mono_jit_attach ();
7995 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7996 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7998 /* <interrupt check> */
7999 emit_thread_interrupt_checkpoint (mb);
8001 /* we first do all conversions */
8002 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8003 for (i = 0; i < sig->param_count; i ++) {
8004 MonoType *t = sig->params [i];
8007 case MONO_TYPE_OBJECT:
8008 case MONO_TYPE_CLASS:
8009 case MONO_TYPE_VALUETYPE:
8010 case MONO_TYPE_ARRAY:
8011 case MONO_TYPE_SZARRAY:
8012 case MONO_TYPE_STRING:
8013 case MONO_TYPE_BOOLEAN:
8014 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8024 if (target_handle) {
8025 mono_mb_emit_icon (mb, (gint32)target_handle);
8026 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8029 g_assert_not_reached ();
8031 } else if (closed) {
8032 mono_mb_emit_icon (mb, (gint32)target_handle);
8033 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8036 for (i = 0; i < sig->param_count; i++) {
8037 MonoType *t = sig->params [i];
8039 if (tmp_locals [i]) {
8041 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8043 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8046 mono_mb_emit_ldarg (mb, i);
8049 /* ret = method (...) */
8050 mono_mb_emit_managed_call (mb, method, NULL);
8052 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8053 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8054 mono_class_init (klass);
8055 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8056 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8057 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8058 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8059 mono_mb_emit_stloc (mb, m->vtaddr_var);
8063 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8064 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8065 } else if (!sig->ret->byref) {
8066 switch (sig->ret->type) {
8067 case MONO_TYPE_VOID:
8069 case MONO_TYPE_BOOLEAN:
8072 case MONO_TYPE_CHAR:
8084 case MONO_TYPE_OBJECT:
8085 mono_mb_emit_stloc (mb, 3);
8087 case MONO_TYPE_STRING:
8088 csig->ret = &mono_defaults.int_class->byval_arg;
8089 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8091 case MONO_TYPE_VALUETYPE:
8092 case MONO_TYPE_CLASS:
8093 case MONO_TYPE_SZARRAY:
8094 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8097 g_warning ("return type 0x%02x unknown", sig->ret->type);
8098 g_assert_not_reached ();
8101 mono_mb_emit_stloc (mb, 3);
8104 /* Convert byref arguments back */
8105 for (i = 0; i < sig->param_count; i ++) {
8106 MonoType *t = sig->params [i];
8107 MonoMarshalSpec *spec = mspecs [i + 1];
8109 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8110 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8112 else if (t->byref) {
8114 case MONO_TYPE_CLASS:
8115 case MONO_TYPE_VALUETYPE:
8116 case MONO_TYPE_OBJECT:
8117 case MONO_TYPE_STRING:
8118 case MONO_TYPE_BOOLEAN:
8119 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8125 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8126 /* The [Out] information is encoded in the delegate signature */
8128 case MONO_TYPE_SZARRAY:
8129 case MONO_TYPE_CLASS:
8130 case MONO_TYPE_VALUETYPE:
8131 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8134 g_assert_not_reached ();
8139 if (mono_threads_is_coop_enabled ()) {
8140 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8143 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8144 clause->handler_offset = mono_mb_get_label (mb);
8148 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8150 * mono_jit_detach ();
8152 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8153 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8155 if (mono_threads_is_coop_enabled ()) {
8156 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8158 /* } [endfinally] */
8159 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8161 mono_mb_patch_branch (mb, leave_pos);
8165 if (m->retobj_var) {
8166 mono_mb_emit_ldloc (mb, m->retobj_var);
8167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8168 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8171 if (!MONO_TYPE_IS_VOID(sig->ret))
8172 mono_mb_emit_ldloc (mb, 3);
8173 mono_mb_emit_byte (mb, CEE_RET);
8176 if (mono_threads_is_coop_enabled ()) {
8177 mono_mb_set_clauses (mb, 1, clause);
8186 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8188 MonoMethodSignature *sig;
8193 * Under windows, delegates passed to native code must use the STDCALL
8194 * calling convention.
8196 csig->call_convention = MONO_CALL_STDCALL;
8199 sig = mono_method_signature (method);
8201 /* Change default calling convention if needed */
8202 /* Why is this a modopt ? */
8203 if (sig->ret && sig->ret->num_mods) {
8204 for (i = 0; i < sig->ret->num_mods; ++i) {
8206 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8207 g_assert (mono_error_ok (&error));
8208 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8209 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8210 csig->call_convention = MONO_CALL_C;
8211 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8212 csig->call_convention = MONO_CALL_STDCALL;
8213 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8214 csig->call_convention = MONO_CALL_FASTCALL;
8215 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8216 csig->call_convention = MONO_CALL_THISCALL;
8223 * generates IL code to call managed methods from unmanaged code
8224 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8227 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8230 MonoMethodSignature *sig, *csig, *invoke_sig;
8231 MonoMethodBuilder *mb;
8232 MonoMethod *res, *invoke;
8233 MonoMarshalSpec **mspecs;
8234 MonoMethodPInvoke piinfo;
8237 EmitMarshalContext m;
8239 g_assert (method != NULL);
8240 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8243 * FIXME: Should cache the method+delegate type pair, since the same method
8244 * could be called with different delegates, thus different marshalling
8247 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8249 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8252 invoke = mono_get_delegate_invoke (delegate_klass);
8253 invoke_sig = mono_method_signature (invoke);
8255 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8256 mono_method_get_marshal_info (invoke, mspecs);
8258 sig = mono_method_signature (method);
8260 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8262 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8263 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8265 /* we copy the signature, so that we can modify it */
8267 /* Need to free this later */
8268 csig = mono_metadata_signature_dup (invoke_sig);
8270 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8274 memset (&m, 0, sizeof (m));
8280 m.image = method->klass->image;
8282 mono_marshal_set_callconv_from_modopt (invoke, csig);
8284 /* The attribute is only available in Net 2.0 */
8285 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8286 MonoCustomAttrInfo *cinfo;
8287 MonoCustomAttrEntry *attr;
8290 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8291 * contents of the attribute without constructing it, as that might not be
8292 * possible when running in cross-compiling mode.
8294 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8295 mono_error_assert_ok (&error);
8298 for (i = 0; i < cinfo->num_attrs; ++i) {
8299 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8300 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8301 attr = &cinfo->attrs [i];
8307 MonoArray *typed_args, *named_args;
8308 CattrNamedArg *arginfo;
8312 MonoBoolean set_last_error = 0;
8315 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8316 g_assert (mono_error_ok (&error));
8317 g_assert (mono_array_length (typed_args) == 1);
8320 o = mono_array_get (typed_args, MonoObject*, 0);
8321 call_conv = *(gint32*)mono_object_unbox (o);
8324 for (i = 0; i < mono_array_length (named_args); ++i) {
8325 CattrNamedArg *narg = &arginfo [i];
8327 o = mono_array_get (named_args, MonoObject*, i);
8329 g_assert (narg->field);
8330 if (!strcmp (narg->field->name, "CharSet")) {
8331 charset = *(gint32*)mono_object_unbox (o);
8332 } else if (!strcmp (narg->field->name, "SetLastError")) {
8333 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8334 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8335 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8336 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8337 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8339 g_assert_not_reached ();
8345 memset (&piinfo, 0, sizeof (piinfo));
8347 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8349 csig->call_convention = call_conv - 1;
8352 if (cinfo && !cinfo->cached)
8353 mono_custom_attrs_free (cinfo);
8356 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8358 if (!target_handle) {
8361 // FIXME: Associate it with the method+delegate_klass pair
8362 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8363 info->d.native_to_managed.method = method;
8364 info->d.native_to_managed.klass = delegate_klass;
8366 res = mono_mb_create_and_cache_full (cache, method,
8367 mb, csig, sig->param_count + 16,
8373 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8377 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8379 mono_metadata_free_marshal_spec (mspecs [i]);
8382 /* mono_method_print_code (res); */
8388 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8392 MonoMethodSignature *sig;
8393 MonoMethodBuilder *mb;
8398 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8400 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8403 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8404 MonoMethodSignature *csig;
8405 MonoMarshalSpec **mspecs;
8406 EmitMarshalContext m;
8408 sig = mono_method_signature (method);
8409 g_assert (!sig->hasthis);
8411 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8412 mono_method_get_marshal_info (method, mspecs);
8414 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8415 csig = mono_metadata_signature_dup_full (image, sig);
8419 memset (&m, 0, sizeof (m));
8427 mono_marshal_set_callconv_from_modopt (method, csig);
8429 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8431 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8436 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8439 for (i = sig->param_count; i >= 0; i--)
8441 mono_metadata_free_marshal_spec (mspecs [i]);
8444 return mono_compile_method (method);
8447 sig = mono_method_signature (method);
8448 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8450 param_count = sig->param_count + sig->hasthis;
8452 for (i = 0; i < param_count; i++)
8453 mono_mb_emit_ldarg (mb, i);
8455 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8456 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8458 mono_mb_emit_op (mb, CEE_CALL, method);
8459 mono_mb_emit_byte (mb, CEE_RET);
8464 method = mono_mb_create (mb, sig, param_count, NULL);
8467 return mono_compile_method (method);
8473 * The code directly following this is the cache hit, value positive branch
8475 * This function takes a new method builder with 0 locals and adds two locals
8476 * to create multiple out-branches and the fall through state of having the object
8477 * on the stack after a cache miss
8480 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8481 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8482 MonoMethodBuilder *mb)
8486 /* allocate local 0 (pointer) obj_vtable */
8487 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8488 /* allocate local 1 (pointer) cached_vtable */
8489 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8492 mono_mb_emit_ldarg (mb, obj_arg_position);
8493 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8495 /*obj_vtable = obj->vtable;*/
8496 mono_mb_emit_ldarg (mb, obj_arg_position);
8497 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8498 mono_mb_emit_byte (mb, CEE_LDIND_I);
8499 mono_mb_emit_stloc (mb, 0);
8501 /* cached_vtable = *cache*/
8502 mono_mb_emit_ldarg (mb, cache_arg_position);
8503 mono_mb_emit_byte (mb, CEE_LDIND_I);
8504 mono_mb_emit_stloc (mb, 1);
8506 mono_mb_emit_ldloc (mb, 1);
8507 mono_mb_emit_byte (mb, CEE_LDC_I4);
8508 mono_mb_emit_i4 (mb, ~0x1);
8509 mono_mb_emit_byte (mb, CEE_CONV_I);
8510 mono_mb_emit_byte (mb, CEE_AND);
8511 mono_mb_emit_ldloc (mb, 0);
8512 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8513 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8515 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8516 mono_mb_emit_ldloc (mb, 1);
8517 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8518 mono_mb_emit_byte (mb, CEE_CONV_U);
8519 mono_mb_emit_byte (mb, CEE_AND);
8520 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8521 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8524 mono_mb_patch_branch (mb, cache_miss_pos);
8527 mono_mb_emit_ldarg (mb, obj_arg_position);
8528 mono_mb_emit_ldarg (mb, class_arg_position);
8529 mono_mb_emit_ldarg (mb, cache_arg_position);
8530 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8533 #endif /* DISABLE_JIT */
8536 * This does the equivalent of mono_object_castclass_with_cache.
8537 * The wrapper info for the wrapper is a WrapperInfo structure.
8540 mono_marshal_get_castclass_with_cache (void)
8542 static MonoMethod *cached;
8544 MonoMethodBuilder *mb;
8545 MonoMethodSignature *sig;
8546 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8549 const int obj_arg_position = 0;
8550 const int class_arg_position = 1;
8551 const int cache_arg_position = 2;
8556 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8557 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8558 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8559 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8560 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8561 sig->ret = &mono_defaults.object_class->byval_arg;
8565 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8566 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8567 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8570 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8571 mono_mb_emit_ldarg (mb, obj_arg_position);
8572 mono_mb_emit_byte (mb, CEE_RET);
8575 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8576 mono_mb_patch_branch (mb, invalid_cast_pos);
8577 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8580 mono_mb_patch_branch (mb, return_null_pos);
8581 mono_mb_emit_byte (mb, CEE_LDNULL);
8582 mono_mb_emit_byte (mb, CEE_RET);
8583 #endif /* DISABLE_JIT */
8585 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8586 res = mono_mb_create (mb, sig, 8, info);
8589 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8590 mono_free_method (res);
8591 mono_metadata_free_method_signature (sig);
8599 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8602 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8603 mono_error_raise_exception (&error); /* FIXME don't raise here */
8605 #ifndef DISABLE_REMOTING
8606 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8610 uintptr_t cache_update = (uintptr_t)obj->vtable;
8612 cache_update = cache_update | 0x1;
8614 *cache = cache_update;
8620 * This does the equivalent of mono_object_isinst_with_cache.
8621 * The wrapper info for the wrapper is a WrapperInfo structure.
8624 mono_marshal_get_isinst_with_cache (void)
8626 static MonoMethod *cached;
8628 MonoMethodBuilder *mb;
8629 MonoMethodSignature *sig;
8630 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8633 const int obj_arg_position = 0;
8634 const int class_arg_position = 1;
8635 const int cache_arg_position = 2;
8640 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8641 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8643 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8645 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8647 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8648 sig->ret = &mono_defaults.object_class->byval_arg;
8652 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8653 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8654 // Return the object gotten via the slow path.
8655 mono_mb_emit_byte (mb, CEE_RET);
8658 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8659 mono_mb_patch_branch (mb, return_null_pos);
8660 mono_mb_emit_byte (mb, CEE_LDNULL);
8661 mono_mb_emit_byte (mb, CEE_RET);
8664 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8665 mono_mb_emit_ldarg (mb, 0);
8666 mono_mb_emit_byte (mb, CEE_RET);
8669 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8670 res = mono_mb_create (mb, sig, 8, info);
8673 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8674 mono_free_method (res);
8675 mono_metadata_free_method_signature (sig);
8683 * mono_marshal_get_isinst:
8684 * @klass: the type of the field
8686 * This method generates a function which can be used to check if an object is
8687 * an instance of the given type, icluding the case where the object is a proxy.
8688 * The generated function has the following signature:
8689 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8692 mono_marshal_get_isinst (MonoClass *klass)
8694 static MonoMethodSignature *isint_sig = NULL;
8698 int pos_was_ok, pos_end;
8699 #ifndef DISABLE_REMOTING
8700 int pos_end2, pos_failed;
8703 MonoMethodBuilder *mb;
8705 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8706 if ((res = mono_marshal_find_in_cache (cache, klass)))
8710 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8711 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8712 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8713 isint_sig->pinvoke = 0;
8716 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8717 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8720 mb->method->save_lmf = 1;
8723 /* check if the object is a proxy that needs special cast */
8724 mono_mb_emit_ldarg (mb, 0);
8725 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8726 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8728 /* The result of MONO_CISINST can be:
8729 0) the type check succeeded
8730 1) the type check did not succeed
8731 2) a CanCastTo call is needed */
8732 #ifndef DISABLE_REMOTING
8733 mono_mb_emit_byte (mb, CEE_DUP);
8734 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8736 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8737 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8739 /* get the real proxy from the transparent proxy*/
8741 mono_mb_emit_ldarg (mb, 0);
8742 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8743 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8747 mono_mb_patch_branch (mb, pos_failed);
8748 mono_mb_emit_byte (mb, CEE_LDNULL);
8749 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8753 mono_mb_patch_branch (mb, pos_was_ok);
8754 mono_mb_emit_byte (mb, CEE_POP);
8755 mono_mb_emit_ldarg (mb, 0);
8759 mono_mb_patch_branch (mb, pos_end);
8760 mono_mb_patch_branch (mb, pos_end2);
8761 mono_mb_emit_byte (mb, CEE_RET);
8763 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8767 mono_mb_emit_byte (mb, CEE_LDNULL);
8768 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8772 mono_mb_patch_branch (mb, pos_was_ok);
8773 mono_mb_emit_ldarg (mb, 0);
8777 mono_mb_patch_branch (mb, pos_end);
8778 mono_mb_emit_byte (mb, CEE_RET);
8779 #endif /* DISABLE_REMOTING */
8780 #endif /* DISABLE_JIT */
8782 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8783 info->d.proxy.klass = klass;
8784 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8791 * mono_marshal_get_castclass:
8792 * @klass: the type of the field
8794 * This method generates a function which can be used to cast an object to
8795 * an instance of the given type, icluding the case where the object is a proxy.
8796 * The generated function has the following signature:
8797 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8798 * The wrapper info for the wrapper is a WrapperInfo structure.
8801 mono_marshal_get_castclass (MonoClass *klass)
8803 static MonoMethodSignature *castclass_sig = NULL;
8806 #ifndef DISABLE_REMOTING
8807 int pos_was_ok, pos_was_ok2;
8810 MonoMethodBuilder *mb;
8813 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8814 if ((res = mono_marshal_find_in_cache (cache, klass)))
8817 if (!castclass_sig) {
8818 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8819 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8820 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8821 castclass_sig->pinvoke = 0;
8824 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8825 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8828 mb->method->save_lmf = 1;
8831 /* check if the object is a proxy that needs special cast */
8832 mono_mb_emit_ldarg (mb, 0);
8833 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8834 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8836 /* The result of MONO_CCASTCLASS can be:
8837 0) the cast is valid
8838 1) cast of unknown proxy type
8839 or an exception if the cast is is invalid
8841 #ifndef DISABLE_REMOTING
8842 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8844 /* get the real proxy from the transparent proxy*/
8846 mono_mb_emit_ldarg (mb, 0);
8847 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8848 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8851 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8854 mono_mb_patch_branch (mb, pos_was_ok);
8855 mono_mb_patch_branch (mb, pos_was_ok2);
8857 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8858 mono_mb_emit_byte (mb, CEE_POP);
8859 #endif /* DISABLE_REMOTING */
8861 mono_mb_emit_ldarg (mb, 0);
8864 mono_mb_emit_byte (mb, CEE_RET);
8865 #endif /* DISABLE_JIT */
8867 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8869 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8877 * mono_marshal_get_struct_to_ptr:
8880 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8881 * The wrapper info for the wrapper is a WrapperInfo structure.
8884 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8886 MonoMethodBuilder *mb;
8887 static MonoMethod *stoptr = NULL;
8891 g_assert (klass != NULL);
8893 mono_marshal_load_type_info (klass);
8895 if (klass->marshal_info->str_to_ptr)
8896 return klass->marshal_info->str_to_ptr;
8899 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8902 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8905 if (klass->blittable) {
8906 mono_mb_emit_byte (mb, CEE_LDARG_1);
8907 mono_mb_emit_byte (mb, CEE_LDARG_0);
8908 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8909 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8910 mono_mb_emit_byte (mb, CEE_PREFIX1);
8911 mono_mb_emit_byte (mb, CEE_CPBLK);
8914 /* allocate local 0 (pointer) src_ptr */
8915 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8916 /* allocate local 1 (pointer) dst_ptr */
8917 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8918 /* allocate local 2 (boolean) delete_old */
8919 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8920 mono_mb_emit_byte (mb, CEE_LDARG_2);
8921 mono_mb_emit_stloc (mb, 2);
8923 /* initialize src_ptr to point to the start of object data */
8924 mono_mb_emit_byte (mb, CEE_LDARG_0);
8925 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8926 mono_mb_emit_stloc (mb, 0);
8928 /* initialize dst_ptr */
8929 mono_mb_emit_byte (mb, CEE_LDARG_1);
8930 mono_mb_emit_stloc (mb, 1);
8932 emit_struct_conv (mb, klass, FALSE);
8935 mono_mb_emit_byte (mb, CEE_RET);
8937 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8938 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8941 mono_marshal_lock ();
8942 if (!klass->marshal_info->str_to_ptr)
8943 klass->marshal_info->str_to_ptr = res;
8945 res = klass->marshal_info->str_to_ptr;
8946 mono_marshal_unlock ();
8951 * mono_marshal_get_ptr_to_struct:
8954 * generates IL code for PtrToStructure (IntPtr src, object structure)
8955 * The wrapper info for the wrapper is a WrapperInfo structure.
8958 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8960 MonoMethodBuilder *mb;
8961 static MonoMethodSignature *ptostr = NULL;
8965 g_assert (klass != NULL);
8967 mono_marshal_load_type_info (klass);
8969 if (klass->marshal_info->ptr_to_str)
8970 return klass->marshal_info->ptr_to_str;
8973 MonoMethodSignature *sig;
8975 /* Create the signature corresponding to
8976 static void PtrToStructure (IntPtr ptr, object structure);
8977 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8978 sig = mono_create_icall_signature ("void ptr object");
8979 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8981 mono_memory_barrier ();
8985 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8988 if (klass->blittable) {
8989 mono_mb_emit_byte (mb, CEE_LDARG_1);
8990 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8991 mono_mb_emit_byte (mb, CEE_LDARG_0);
8992 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8993 mono_mb_emit_byte (mb, CEE_PREFIX1);
8994 mono_mb_emit_byte (mb, CEE_CPBLK);
8997 /* allocate local 0 (pointer) src_ptr */
8998 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8999 /* allocate local 1 (pointer) dst_ptr */
9000 mono_mb_add_local (mb, &klass->this_arg);
9002 /* initialize src_ptr to point to the start of object data */
9003 mono_mb_emit_byte (mb, CEE_LDARG_0);
9004 mono_mb_emit_stloc (mb, 0);
9006 /* initialize dst_ptr */
9007 mono_mb_emit_byte (mb, CEE_LDARG_1);
9008 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9009 mono_mb_emit_stloc (mb, 1);
9011 emit_struct_conv (mb, klass, TRUE);
9014 mono_mb_emit_byte (mb, CEE_RET);
9016 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9017 res = mono_mb_create (mb, ptostr, 0, info);
9020 mono_marshal_lock ();
9021 if (!klass->marshal_info->ptr_to_str)
9022 klass->marshal_info->ptr_to_str = res;
9024 res = klass->marshal_info->ptr_to_str;
9025 mono_marshal_unlock ();
9030 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9031 * This is used to avoid infinite recursion since it is hard to determine where to
9032 * replace a method with its synchronized wrapper, and where not.
9033 * The runtime should execute METHOD instead of the wrapper.
9034 * The wrapper info for the wrapper is a WrapperInfo structure.
9037 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9039 MonoMethodBuilder *mb;
9041 MonoMethodSignature *sig;
9043 MonoGenericContext *ctx = NULL;
9044 MonoGenericContainer *container = NULL;
9046 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9047 ctx = &((MonoMethodInflated*)method)->context;
9048 method = ((MonoMethodInflated*)method)->declaring;
9049 container = mono_method_get_generic_container (method);
9051 container = method->klass->generic_container;
9052 g_assert (container);
9055 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9057 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9058 mono_mb_emit_byte (mb, CEE_RET);
9060 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9062 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9063 info->d.synchronized_inner.method = method;
9064 res = mono_mb_create (mb, sig, 0, info);
9068 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9069 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9075 * generates IL code for the synchronized wrapper: the generated method
9076 * calls METHOD while locking 'this' or the parent type.
9079 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9081 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9082 MonoMethodSignature *sig;
9083 MonoExceptionClause *clause;
9084 MonoMethodBuilder *mb;
9088 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9089 MonoGenericContext *ctx = NULL;
9090 MonoMethod *orig_method = NULL;
9091 MonoGenericContainer *container = NULL;
9095 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9098 /* FIXME: Support generic methods too */
9099 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9100 orig_method = method;
9101 ctx = &((MonoMethodInflated*)method)->context;
9102 method = ((MonoMethodInflated*)method)->declaring;
9103 container = mono_method_get_generic_container (method);
9105 container = method->klass->generic_container;
9106 g_assert (container);
9113 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9114 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9118 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9119 if ((res = mono_marshal_find_in_cache (cache, method)))
9123 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9126 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9128 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9129 info->d.synchronized.method = method;
9132 mb->skip_visibility = 1;
9134 if (!MONO_TYPE_IS_VOID (sig->ret))
9135 ret_local = mono_mb_add_local (mb, sig->ret);
9138 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9139 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9141 /* This will throw the type load exception when the wrapper is compiled */
9142 mono_mb_emit_byte (mb, CEE_LDNULL);
9143 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9144 mono_mb_emit_byte (mb, CEE_POP);
9146 if (!MONO_TYPE_IS_VOID (sig->ret))
9147 mono_mb_emit_ldloc (mb, ret_local);
9148 mono_mb_emit_byte (mb, CEE_RET);
9151 res = mono_mb_create_and_cache_full (cache, method,
9152 mb, sig, sig->param_count + 16, info, NULL);
9160 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9161 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9163 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9164 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9167 mono_marshal_lock ();
9169 if (!enter_method) {
9170 MonoMethodDesc *desc;
9172 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9173 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9174 g_assert (enter_method);
9175 mono_method_desc_free (desc);
9177 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9178 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9179 g_assert (exit_method);
9180 mono_method_desc_free (desc);
9182 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9183 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9184 g_assert (gettypefromhandle_method);
9185 mono_method_desc_free (desc);
9188 mono_marshal_unlock ();
9191 /* Push this or the type object */
9192 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9193 /* We have special handling for this in the JIT */
9194 int index = mono_mb_add_data (mb, method->klass);
9195 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9196 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9197 mono_mb_emit_i4 (mb, index);
9199 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9202 mono_mb_emit_ldarg (mb, 0);
9203 mono_mb_emit_stloc (mb, this_local);
9205 /* Call Monitor::Enter() */
9206 mono_mb_emit_ldloc (mb, this_local);
9207 mono_mb_emit_ldloc_addr (mb, taken_local);
9208 mono_mb_emit_managed_call (mb, enter_method, NULL);
9210 clause->try_offset = mono_mb_get_label (mb);
9212 /* Call the method */
9214 mono_mb_emit_ldarg (mb, 0);
9215 for (i = 0; i < sig->param_count; i++)
9216 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9220 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9221 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9223 mono_mb_emit_managed_call (mb, method, NULL);
9226 if (!MONO_TYPE_IS_VOID (sig->ret))
9227 mono_mb_emit_stloc (mb, ret_local);
9229 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9231 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9232 clause->handler_offset = mono_mb_get_label (mb);
9234 /* Call Monitor::Exit() if needed */
9235 mono_mb_emit_ldloc (mb, taken_local);
9236 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9237 mono_mb_emit_ldloc (mb, this_local);
9238 mono_mb_emit_managed_call (mb, exit_method, NULL);
9239 mono_mb_patch_branch (mb, pos2);
9240 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9242 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9244 mono_mb_patch_branch (mb, pos);
9245 if (!MONO_TYPE_IS_VOID (sig->ret))
9246 mono_mb_emit_ldloc (mb, ret_local);
9247 mono_mb_emit_byte (mb, CEE_RET);
9249 mono_mb_set_clauses (mb, 1, clause);
9254 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9255 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9257 res = mono_mb_create_and_cache_full (cache, method,
9258 mb, sig, sig->param_count + 16, info, NULL);
9267 * the returned method calls 'method' unboxing the this argument
9270 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9272 MonoMethodSignature *sig = mono_method_signature (method);
9274 MonoMethodBuilder *mb;
9279 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9281 if ((res = mono_marshal_find_in_cache (cache, method)))
9284 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9286 g_assert (sig->hasthis);
9289 mono_mb_emit_ldarg (mb, 0);
9290 mono_mb_emit_icon (mb, sizeof (MonoObject));
9291 mono_mb_emit_byte (mb, CEE_ADD);
9292 for (i = 0; i < sig->param_count; ++i)
9293 mono_mb_emit_ldarg (mb, i + 1);
9294 mono_mb_emit_managed_call (mb, method, NULL);
9295 mono_mb_emit_byte (mb, CEE_RET);
9298 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9299 info->d.unbox.method = method;
9301 res = mono_mb_create_and_cache_full (cache, method,
9302 mb, sig, sig->param_count + 16, info, NULL);
9305 /* mono_method_print_code (res); */
9311 STELEMREF_OBJECT, /*no check at all*/
9312 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9313 STELEMREF_CLASS, /*only the klass->parents check*/
9314 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9315 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9316 STELEMREF_KIND_COUNT
9319 static const char *strelemref_wrapper_name[] = {
9320 "object", "sealed_class", "class", "interface", "complex"
9324 is_monomorphic_array (MonoClass *klass)
9326 MonoClass *element_class;
9327 if (klass->rank != 1)
9330 element_class = klass->element_class;
9331 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9335 get_virtual_stelemref_kind (MonoClass *element_class)
9337 if (element_class == mono_defaults.object_class)
9338 return STELEMREF_OBJECT;
9339 if (is_monomorphic_array (element_class))
9340 return STELEMREF_SEALED_CLASS;
9341 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9342 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9343 #ifdef COMPRESSED_INTERFACE_BITMAP
9344 return STELEMREF_COMPLEX;
9346 return STELEMREF_INTERFACE;
9348 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9349 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9350 return STELEMREF_COMPLEX;
9351 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9352 return STELEMREF_SEALED_CLASS;
9353 return STELEMREF_CLASS;
9359 load_array_element_address (MonoMethodBuilder *mb)
9361 mono_mb_emit_ldarg (mb, 0);
9362 mono_mb_emit_ldarg (mb, 1);
9363 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9367 load_array_class (MonoMethodBuilder *mb, int aklass)
9369 mono_mb_emit_ldarg (mb, 0);
9370 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9371 mono_mb_emit_byte (mb, CEE_LDIND_I);
9372 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9373 mono_mb_emit_byte (mb, CEE_LDIND_I);
9374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9375 mono_mb_emit_byte (mb, CEE_LDIND_I);
9376 mono_mb_emit_stloc (mb, aklass);
9380 load_value_class (MonoMethodBuilder *mb, int vklass)
9382 mono_mb_emit_ldarg (mb, 2);
9383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9384 mono_mb_emit_byte (mb, CEE_LDIND_I);
9385 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9386 mono_mb_emit_byte (mb, CEE_LDIND_I);
9387 mono_mb_emit_stloc (mb, vklass);
9393 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9395 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9396 printf ("slow vstore of %s\n", name);
9402 * The wrapper info for the wrapper is a WrapperInfo structure.
9405 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9406 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9407 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9408 * - Add a case for arrays of arrays.
9411 get_virtual_stelemref_wrapper (int kind)
9413 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9414 static MonoMethodSignature *signature;
9415 MonoMethodBuilder *mb;
9418 const char *param_names [16];
9420 int aklass, vklass, vtable, uiid;
9421 int array_slot_addr;
9424 if (cached_methods [kind])
9425 return cached_methods [kind];
9427 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9428 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9432 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9434 /* void this::stelemref (size_t idx, void* value) */
9435 sig->ret = &mono_defaults.void_class->byval_arg;
9436 sig->hasthis = TRUE;
9437 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9438 sig->params [1] = &mono_defaults.object_class->byval_arg;
9443 param_names [0] = "index";
9444 param_names [1] = "value";
9445 mono_mb_set_param_names (mb, param_names);
9447 /*For now simply call plain old stelemref*/
9449 case STELEMREF_OBJECT:
9450 /* ldelema (implicit bound check) */
9451 load_array_element_address (mb);
9453 mono_mb_emit_ldarg (mb, 2);
9454 mono_mb_emit_byte (mb, CEE_STIND_REF);
9455 mono_mb_emit_byte (mb, CEE_RET);
9458 case STELEMREF_COMPLEX:
9460 <ldelema (bound check)>
9463 if (!mono_object_isinst (value, aklass))
9467 *array_slot_addr = value;
9470 throw new ArrayTypeMismatchException ();
9473 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9474 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9478 /*Use this to debug/record stores that are going thru the slow path*/
9479 MonoMethodSignature *csig;
9480 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9481 csig->ret = &mono_defaults.void_class->byval_arg;
9482 csig->params [0] = &mono_defaults.object_class->byval_arg;
9483 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9484 csig->params [2] = &mono_defaults.object_class->byval_arg;
9485 mono_mb_emit_ldarg (mb, 0);
9486 mono_mb_emit_ldarg (mb, 1);
9487 mono_mb_emit_ldarg (mb, 2);
9488 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9492 /* ldelema (implicit bound check) */
9493 load_array_element_address (mb);
9494 mono_mb_emit_stloc (mb, array_slot_addr);
9496 /* if (!value) goto do_store */
9497 mono_mb_emit_ldarg (mb, 2);
9498 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9500 /* aklass = array->vtable->klass->element_class */
9501 load_array_class (mb, aklass);
9503 /*if (mono_object_isinst (value, aklass)) */
9504 mono_mb_emit_ldarg (mb, 2);
9505 mono_mb_emit_ldloc (mb, aklass);
9506 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9507 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9510 mono_mb_patch_branch (mb, b1);
9511 mono_mb_emit_ldloc (mb, array_slot_addr);
9512 mono_mb_emit_ldarg (mb, 2);
9513 mono_mb_emit_byte (mb, CEE_STIND_REF);
9514 mono_mb_emit_byte (mb, CEE_RET);
9517 mono_mb_patch_branch (mb, b2);
9519 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9522 case STELEMREF_SEALED_CLASS:
9524 <ldelema (bound check)>
9528 aklass = array->vtable->klass->element_class;
9529 vklass = value->vtable->klass;
9531 if (vklass != aklass)
9535 *array_slot_addr = value;
9538 throw new ArrayTypeMismatchException ();
9540 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9541 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9542 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9545 /* ldelema (implicit bound check) */
9546 load_array_element_address (mb);
9547 mono_mb_emit_stloc (mb, array_slot_addr);
9549 /* if (!value) goto do_store */
9550 mono_mb_emit_ldarg (mb, 2);
9551 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9553 /* aklass = array->vtable->klass->element_class */
9554 load_array_class (mb, aklass);
9556 /* vklass = value->vtable->klass */
9557 load_value_class (mb, vklass);
9559 /*if (vklass != aklass) goto do_exception; */
9560 mono_mb_emit_ldloc (mb, aklass);
9561 mono_mb_emit_ldloc (mb, vklass);
9562 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9565 mono_mb_patch_branch (mb, b1);
9566 mono_mb_emit_ldloc (mb, array_slot_addr);
9567 mono_mb_emit_ldarg (mb, 2);
9568 mono_mb_emit_byte (mb, CEE_STIND_REF);
9569 mono_mb_emit_byte (mb, CEE_RET);
9572 mono_mb_patch_branch (mb, b2);
9573 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9576 case STELEMREF_CLASS:
9579 <ldelema (bound check)>
9583 aklass = array->vtable->klass->element_class;
9584 vklass = value->vtable->klass;
9586 if (vklass->idepth < aklass->idepth)
9589 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9593 *array_slot_addr = value;
9597 throw new ArrayTypeMismatchException ();
9599 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9600 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9601 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9603 /* ldelema (implicit bound check) */
9604 load_array_element_address (mb);
9605 mono_mb_emit_stloc (mb, array_slot_addr);
9607 /* if (!value) goto do_store */
9608 mono_mb_emit_ldarg (mb, 2);
9609 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9611 /* aklass = array->vtable->klass->element_class */
9612 load_array_class (mb, aklass);
9614 /* vklass = value->vtable->klass */
9615 load_value_class (mb, vklass);
9617 /*if (mono_object_isinst (value, aklass)) */
9618 mono_mb_emit_ldarg (mb, 2);
9619 mono_mb_emit_ldloc (mb, aklass);
9620 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9621 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9623 /* if (vklass->idepth < aklass->idepth) goto failue */
9624 mono_mb_emit_ldloc (mb, vklass);
9625 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9626 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9628 mono_mb_emit_ldloc (mb, aklass);
9629 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9630 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9632 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9634 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9635 mono_mb_emit_ldloc (mb, vklass);
9636 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9637 mono_mb_emit_byte (mb, CEE_LDIND_I);
9639 mono_mb_emit_ldloc (mb, aklass);
9640 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9641 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9642 mono_mb_emit_icon (mb, 1);
9643 mono_mb_emit_byte (mb, CEE_SUB);
9644 mono_mb_emit_icon (mb, sizeof (void*));
9645 mono_mb_emit_byte (mb, CEE_MUL);
9646 mono_mb_emit_byte (mb, CEE_ADD);
9647 mono_mb_emit_byte (mb, CEE_LDIND_I);
9649 mono_mb_emit_ldloc (mb, aklass);
9650 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9653 mono_mb_patch_branch (mb, b1);
9654 mono_mb_emit_ldloc (mb, array_slot_addr);
9655 mono_mb_emit_ldarg (mb, 2);
9656 mono_mb_emit_byte (mb, CEE_STIND_REF);
9657 mono_mb_emit_byte (mb, CEE_RET);
9660 mono_mb_patch_branch (mb, b2);
9661 mono_mb_patch_branch (mb, b3);
9663 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9666 case STELEMREF_INTERFACE:
9673 klass = array->obj.vtable->klass->element_class;
9675 uiid = klass->interface_id;
9676 if (uiid > vt->max_interface_id)
9678 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9681 mono_array_setref (array, index, value);
9684 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9686 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9687 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9688 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9689 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9691 /* ldelema (implicit bound check) */
9692 load_array_element_address (mb);
9693 mono_mb_emit_stloc (mb, array_slot_addr);
9695 /* if (!value) goto do_store */
9696 mono_mb_emit_ldarg (mb, 2);
9697 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9699 /* klass = array->vtable->klass->element_class */
9700 load_array_class (mb, aklass);
9702 /* vt = value->vtable */
9703 mono_mb_emit_ldarg (mb, 2);
9704 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9705 mono_mb_emit_byte (mb, CEE_LDIND_I);
9706 mono_mb_emit_stloc (mb, vtable);
9708 /* uiid = klass->interface_id; */
9709 mono_mb_emit_ldloc (mb, aklass);
9710 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9711 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9712 mono_mb_emit_stloc (mb, uiid);
9714 /*if (uiid > vt->max_interface_id)*/
9715 mono_mb_emit_ldloc (mb, uiid);
9716 mono_mb_emit_ldloc (mb, vtable);
9717 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9718 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9719 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9721 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9723 /*vt->interface_bitmap*/
9724 mono_mb_emit_ldloc (mb, vtable);
9725 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9726 mono_mb_emit_byte (mb, CEE_LDIND_I);
9729 mono_mb_emit_ldloc (mb, uiid);
9730 mono_mb_emit_icon (mb, 3);
9731 mono_mb_emit_byte (mb, CEE_SHR_UN);
9733 /*vt->interface_bitmap [(uiid) >> 3]*/
9734 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9735 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9737 /*(1 << ((uiid)&7)))*/
9738 mono_mb_emit_icon (mb, 1);
9739 mono_mb_emit_ldloc (mb, uiid);
9740 mono_mb_emit_icon (mb, 7);
9741 mono_mb_emit_byte (mb, CEE_AND);
9742 mono_mb_emit_byte (mb, CEE_SHL);
9744 /*bitwise and the whole thing*/
9745 mono_mb_emit_byte (mb, CEE_AND);
9746 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
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);
9758 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9762 mono_mb_emit_ldarg (mb, 0);
9763 mono_mb_emit_ldarg (mb, 1);
9764 mono_mb_emit_ldarg (mb, 2);
9765 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9766 mono_mb_emit_byte (mb, CEE_RET);
9769 #endif /* DISABLE_JIT */
9770 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9771 info->d.virtual_stelemref.kind = kind;
9772 res = mono_mb_create (mb, signature, 4, info);
9773 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9775 mono_marshal_lock ();
9776 if (!cached_methods [kind]) {
9777 cached_methods [kind] = res;
9778 mono_marshal_unlock ();
9780 mono_marshal_unlock ();
9781 mono_free_method (res);
9785 return cached_methods [kind];
9789 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9793 g_assert (array_class->rank == 1);
9794 kind = get_virtual_stelemref_kind (array_class->element_class);
9796 return get_virtual_stelemref_wrapper (kind);
9800 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9805 *nwrappers = STELEMREF_KIND_COUNT;
9806 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9807 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9808 res [i] = get_virtual_stelemref_wrapper (i);
9813 * The wrapper info for the wrapper is a WrapperInfo structure.
9816 mono_marshal_get_stelemref (void)
9818 static MonoMethod* ret = NULL;
9819 MonoMethodSignature *sig;
9820 MonoMethodBuilder *mb;
9823 guint32 b1, b2, b3, b4;
9826 int array_slot_addr;
9831 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9834 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9836 /* void stelemref (void* array, int idx, void* value) */
9837 sig->ret = &mono_defaults.void_class->byval_arg;
9838 sig->params [0] = &mono_defaults.object_class->byval_arg;
9839 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9840 sig->params [2] = &mono_defaults.object_class->byval_arg;
9843 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9844 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9845 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9849 <ldelema (bound check)>
9853 aklass = array->vtable->klass->element_class;
9854 vklass = value->vtable->klass;
9856 if (vklass->idepth < aklass->idepth)
9859 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9863 *array_slot_addr = value;
9867 if (mono_object_isinst (value, aklass))
9870 throw new ArrayTypeMismatchException ();
9873 /* ldelema (implicit bound check) */
9874 mono_mb_emit_ldarg (mb, 0);
9875 mono_mb_emit_ldarg (mb, 1);
9876 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9877 mono_mb_emit_stloc (mb, array_slot_addr);
9879 /* if (!value) goto do_store */
9880 mono_mb_emit_ldarg (mb, 2);
9881 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9883 /* aklass = array->vtable->klass->element_class */
9884 mono_mb_emit_ldarg (mb, 0);
9885 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9886 mono_mb_emit_byte (mb, CEE_LDIND_I);
9887 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9888 mono_mb_emit_byte (mb, CEE_LDIND_I);
9889 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9890 mono_mb_emit_byte (mb, CEE_LDIND_I);
9891 mono_mb_emit_stloc (mb, aklass);
9893 /* vklass = value->vtable->klass */
9894 mono_mb_emit_ldarg (mb, 2);
9895 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9896 mono_mb_emit_byte (mb, CEE_LDIND_I);
9897 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9898 mono_mb_emit_byte (mb, CEE_LDIND_I);
9899 mono_mb_emit_stloc (mb, vklass);
9901 /* if (vklass->idepth < aklass->idepth) goto failue */
9902 mono_mb_emit_ldloc (mb, vklass);
9903 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9904 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9906 mono_mb_emit_ldloc (mb, aklass);
9907 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9908 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9910 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9912 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9913 mono_mb_emit_ldloc (mb, vklass);
9914 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9915 mono_mb_emit_byte (mb, CEE_LDIND_I);
9917 mono_mb_emit_ldloc (mb, aklass);
9918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9919 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9920 mono_mb_emit_icon (mb, 1);
9921 mono_mb_emit_byte (mb, CEE_SUB);
9922 mono_mb_emit_icon (mb, sizeof (void*));
9923 mono_mb_emit_byte (mb, CEE_MUL);
9924 mono_mb_emit_byte (mb, CEE_ADD);
9925 mono_mb_emit_byte (mb, CEE_LDIND_I);
9927 mono_mb_emit_ldloc (mb, aklass);
9929 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9931 copy_pos = mono_mb_get_label (mb);
9933 mono_mb_patch_branch (mb, b1);
9934 mono_mb_emit_ldloc (mb, array_slot_addr);
9935 mono_mb_emit_ldarg (mb, 2);
9936 mono_mb_emit_byte (mb, CEE_STIND_REF);
9938 mono_mb_emit_byte (mb, CEE_RET);
9941 mono_mb_patch_branch (mb, b2);
9942 mono_mb_patch_branch (mb, b3);
9944 mono_mb_emit_ldarg (mb, 2);
9945 mono_mb_emit_ldloc (mb, aklass);
9946 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9948 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9949 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9950 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9952 mono_mb_emit_byte (mb, CEE_RET);
9954 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9955 ret = mono_mb_create (mb, sig, 4, info);
9962 * mono_marshal_get_gsharedvt_in_wrapper:
9964 * This wrapper handles calls from normal code to gsharedvt code.
9966 * The wrapper info for the wrapper is a WrapperInfo structure.
9969 mono_marshal_get_gsharedvt_in_wrapper (void)
9971 static MonoMethod* ret = NULL;
9972 MonoMethodSignature *sig;
9973 MonoMethodBuilder *mb;
9979 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9981 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9982 sig->ret = &mono_defaults.void_class->byval_arg;
9986 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9988 mono_mb_emit_byte (mb, CEE_RET);
9990 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9991 ret = mono_mb_create (mb, sig, 4, info);
9998 * mono_marshal_get_gsharedvt_out_wrapper:
10000 * This wrapper handles calls from gsharedvt code to normal code.
10002 * The wrapper info for the wrapper is a WrapperInfo structure.
10005 mono_marshal_get_gsharedvt_out_wrapper (void)
10007 static MonoMethod* ret = NULL;
10008 MonoMethodSignature *sig;
10009 MonoMethodBuilder *mb;
10015 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10017 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10018 sig->ret = &mono_defaults.void_class->byval_arg;
10020 #ifndef DISABLE_JIT
10022 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10024 mono_mb_emit_byte (mb, CEE_RET);
10026 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10027 ret = mono_mb_create (mb, sig, 4, info);
10036 MonoMethod *method;
10039 /* LOCKING: vars accessed under the marshal lock */
10040 static ArrayElemAddr *elem_addr_cache = NULL;
10041 static int elem_addr_cache_size = 0;
10042 static int elem_addr_cache_next = 0;
10045 * mono_marshal_get_array_address:
10046 * @rank: rank of the array type
10047 * @elem_size: size in bytes of an element of an array.
10049 * Returns a MonoMethod that implements the code to get the address
10050 * of an element in a multi-dimenasional array of @rank dimensions.
10051 * The returned method takes an array as the first argument and then
10052 * @rank indexes for the @rank dimensions.
10053 * If ELEM_SIZE is 0, read the array size from the array object.
10056 mono_marshal_get_array_address (int rank, int elem_size)
10059 MonoMethodBuilder *mb;
10060 MonoMethodSignature *sig;
10063 int i, bounds, ind, realidx;
10064 int branch_pos, *branch_positions;
10068 mono_marshal_lock ();
10069 for (i = 0; i < elem_addr_cache_next; ++i) {
10070 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10071 ret = elem_addr_cache [i].method;
10075 mono_marshal_unlock ();
10079 branch_positions = g_new0 (int, rank);
10081 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10083 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10084 sig->ret = &mono_defaults.int_class->byval_arg;
10085 sig->params [0] = &mono_defaults.object_class->byval_arg;
10086 for (i = 0; i < rank; ++i) {
10087 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10090 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10091 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10094 #ifndef DISABLE_JIT
10095 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10096 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10097 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10099 /* bounds = array->bounds; */
10100 mono_mb_emit_ldarg (mb, 0);
10101 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10102 mono_mb_emit_byte (mb, CEE_LDIND_I);
10103 mono_mb_emit_stloc (mb, bounds);
10105 /* ind is the overall element index, realidx is the partial index in a single dimension */
10106 /* ind = idx0 - bounds [0].lower_bound */
10107 mono_mb_emit_ldarg (mb, 1);
10108 mono_mb_emit_ldloc (mb, bounds);
10109 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10110 mono_mb_emit_byte (mb, CEE_ADD);
10111 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10112 mono_mb_emit_byte (mb, CEE_SUB);
10113 mono_mb_emit_stloc (mb, ind);
10114 /* if (ind >= bounds [0].length) goto exeception; */
10115 mono_mb_emit_ldloc (mb, ind);
10116 mono_mb_emit_ldloc (mb, bounds);
10117 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10118 mono_mb_emit_byte (mb, CEE_ADD);
10119 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10120 /* note that we use unsigned comparison */
10121 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10123 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10124 * We could also decide to ignore the passed elem_size and get it
10125 * from the array object, to reduce the number of methods we generate:
10126 * the additional cost is 3 memory loads and a non-immediate mul.
10128 for (i = 1; i < rank; ++i) {
10129 /* realidx = idxi - bounds [i].lower_bound */
10130 mono_mb_emit_ldarg (mb, 1 + i);
10131 mono_mb_emit_ldloc (mb, bounds);
10132 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10133 mono_mb_emit_byte (mb, CEE_ADD);
10134 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10135 mono_mb_emit_byte (mb, CEE_SUB);
10136 mono_mb_emit_stloc (mb, realidx);
10137 /* if (realidx >= bounds [i].length) goto exeception; */
10138 mono_mb_emit_ldloc (mb, realidx);
10139 mono_mb_emit_ldloc (mb, bounds);
10140 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10141 mono_mb_emit_byte (mb, CEE_ADD);
10142 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10143 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10144 /* ind = ind * bounds [i].length + realidx */
10145 mono_mb_emit_ldloc (mb, ind);
10146 mono_mb_emit_ldloc (mb, bounds);
10147 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10148 mono_mb_emit_byte (mb, CEE_ADD);
10149 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10150 mono_mb_emit_byte (mb, CEE_MUL);
10151 mono_mb_emit_ldloc (mb, realidx);
10152 mono_mb_emit_byte (mb, CEE_ADD);
10153 mono_mb_emit_stloc (mb, ind);
10156 /* return array->vector + ind * element_size */
10157 mono_mb_emit_ldarg (mb, 0);
10158 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10159 mono_mb_emit_ldloc (mb, ind);
10161 mono_mb_emit_icon (mb, elem_size);
10163 /* Load arr->vtable->klass->sizes.element_class */
10164 mono_mb_emit_ldarg (mb, 0);
10165 mono_mb_emit_byte (mb, CEE_CONV_I);
10166 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10167 mono_mb_emit_byte (mb, CEE_ADD);
10168 mono_mb_emit_byte (mb, CEE_LDIND_I);
10169 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10170 mono_mb_emit_byte (mb, CEE_ADD);
10171 mono_mb_emit_byte (mb, CEE_LDIND_I);
10172 /* sizes is an union, so this reads sizes.element_size */
10173 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10174 mono_mb_emit_byte (mb, CEE_ADD);
10175 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10177 mono_mb_emit_byte (mb, CEE_MUL);
10178 mono_mb_emit_byte (mb, CEE_ADD);
10179 mono_mb_emit_byte (mb, CEE_RET);
10181 /* patch the branches to get here and throw */
10182 for (i = 1; i < rank; ++i) {
10183 mono_mb_patch_branch (mb, branch_positions [i]);
10185 mono_mb_patch_branch (mb, branch_pos);
10186 /* throw exception */
10187 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10189 g_free (branch_positions);
10190 #endif /* DISABLE_JIT */
10192 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10193 info->d.element_addr.rank = rank;
10194 info->d.element_addr.elem_size = elem_size;
10195 ret = mono_mb_create (mb, sig, 4, info);
10198 /* cache the result */
10200 mono_marshal_lock ();
10201 for (i = 0; i < elem_addr_cache_next; ++i) {
10202 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10203 /* FIXME: free ret */
10204 ret = elem_addr_cache [i].method;
10210 if (elem_addr_cache_next >= elem_addr_cache_size) {
10211 int new_size = elem_addr_cache_size + 4;
10212 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10213 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10214 g_free (elem_addr_cache);
10215 elem_addr_cache = new_array;
10216 elem_addr_cache_size = new_size;
10218 elem_addr_cache [elem_addr_cache_next].rank = rank;
10219 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10220 elem_addr_cache [elem_addr_cache_next].method = ret;
10221 elem_addr_cache_next ++;
10223 mono_marshal_unlock ();
10228 * mono_marshal_get_array_accessor_wrapper:
10230 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10233 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10235 MonoMethodSignature *sig;
10236 MonoMethodBuilder *mb;
10240 MonoGenericContext *ctx = NULL;
10241 MonoMethod *orig_method = NULL;
10242 MonoGenericContainer *container = NULL;
10246 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10247 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10248 * FIXME: Use generic methods.
10255 g_assert_not_reached ();
10257 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10258 if ((res = mono_marshal_find_in_cache (cache, method)))
10262 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10265 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10267 #ifndef DISABLE_JIT
10268 /* Call the method */
10270 mono_mb_emit_ldarg (mb, 0);
10271 for (i = 0; i < sig->param_count; i++)
10272 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10276 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10277 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10279 mono_mb_emit_managed_call (mb, method, NULL);
10281 mono_mb_emit_byte (mb, CEE_RET);
10284 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10285 info->d.array_accessor.method = method;
10289 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10290 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10292 res = mono_mb_create_and_cache_full (cache, method,
10293 mb, sig, sig->param_count + 16,
10302 mono_marshal_alloc (gulong size, MonoError *error)
10306 mono_error_init (error);
10309 res = CoTaskMemAlloc (size);
10311 res = g_try_malloc ((gulong)size);
10313 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10318 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10320 ves_icall_marshal_alloc (gulong size)
10323 void *ret = mono_marshal_alloc (size, &error);
10324 if (!mono_error_ok (&error)) {
10325 mono_error_set_pending_exception (&error);
10333 mono_marshal_free (gpointer ptr)
10336 CoTaskMemFree (ptr);
10343 mono_marshal_free_array (gpointer *ptr, int size)
10350 for (i = 0; i < size; i++)
10356 mono_marshal_string_to_utf16 (MonoString *s)
10358 return s ? mono_string_chars (s) : NULL;
10361 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10363 mono_marshal_string_to_utf16_copy (MonoString *s)
10369 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10370 if (!mono_error_ok (&error)) {
10371 mono_error_set_pending_exception (&error);
10374 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10375 res [mono_string_length (s)] = 0;
10381 * mono_marshal_set_last_error:
10383 * This function is invoked to set the last error value from a P/Invoke call
10384 * which has SetLastError set.
10387 mono_marshal_set_last_error (void)
10390 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10392 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10397 mono_marshal_set_last_error_windows (int error)
10400 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10405 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10406 gpointer dest, gint32 length)
10411 MONO_CHECK_ARG_NULL (src,);
10412 MONO_CHECK_ARG_NULL (dest,);
10414 if (src->obj.vtable->klass->rank != 1) {
10415 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10418 if (start_index < 0) {
10419 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10423 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10426 if (start_index + length > mono_array_length (src)) {
10427 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10431 element_size = mono_array_element_size (src->obj.vtable->klass);
10433 /* no references should be involved */
10434 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10436 memcpy (dest, source_addr, length * element_size);
10440 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10441 MonoArray *dest, gint32 length)
10446 MONO_CHECK_ARG_NULL (src,);
10447 MONO_CHECK_ARG_NULL (dest,);
10449 if (dest->obj.vtable->klass->rank != 1) {
10450 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10453 if (start_index < 0) {
10454 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10458 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10461 if (start_index + length > mono_array_length (dest)) {
10462 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10465 element_size = mono_array_element_size (dest->obj.vtable->klass);
10467 /* no references should be involved */
10468 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10470 memcpy (dest_addr, src, length * element_size);
10474 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10479 return mono_string_new (mono_domain_get (), ptr);
10483 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10486 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10489 return mono_string_new_len (mono_domain_get (), ptr, len);
10494 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10497 MonoString *res = NULL;
10498 MonoDomain *domain = mono_domain_get ();
10508 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10509 if (!mono_error_ok (&error)) {
10510 mono_error_set_pending_exception (&error);
10517 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10520 MonoString *res = NULL;
10521 MonoDomain *domain = mono_domain_get ();
10523 mono_error_init (&error);
10527 mono_error_set_argument_null (&error, "ptr", "");
10529 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10532 if (!mono_error_ok (&error))
10533 mono_error_set_pending_exception (&error);
10538 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10540 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10544 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10550 MONO_CHECK_ARG_NULL (rtype, 0);
10552 type = rtype->type;
10553 klass = mono_class_from_mono_type (type);
10554 if (!mono_class_init (klass)) {
10555 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10559 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10561 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10562 return sizeof (gpointer);
10563 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10565 MonoException *exc;
10567 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10568 exc = mono_get_exception_argument ("t", msg);
10570 mono_set_pending_exception (exc);
10574 return mono_class_native_size (klass, NULL);
10578 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10581 MonoMethod *method;
10584 MONO_CHECK_ARG_NULL (obj,);
10585 MONO_CHECK_ARG_NULL (dst,);
10587 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10591 pa [2] = &delete_old;
10593 mono_runtime_invoke_checked (method, NULL, pa, &error);
10594 if (!mono_error_ok (&error))
10595 mono_error_set_pending_exception (&error);
10599 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10601 MonoMethod *method;
10604 mono_error_init (error);
10606 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10611 mono_runtime_invoke_checked (method, NULL, pa, error);
10615 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10620 MONO_CHECK_ARG_NULL (src,);
10621 MONO_CHECK_ARG_NULL (dst,);
10623 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10625 if (t->type == MONO_TYPE_VALUETYPE) {
10626 MonoException *exc;
10629 tmp = g_strdup_printf ("Destination is a boxed value type.");
10630 exc = mono_get_exception_argument ("dst", tmp);
10633 mono_set_pending_exception (exc);
10637 ptr_to_structure (src, dst, &error);
10638 if (!mono_error_ok (&error))
10639 mono_error_set_pending_exception (&error);
10643 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10647 MonoDomain *domain = mono_domain_get ();
10652 MONO_CHECK_ARG_NULL (type, NULL);
10654 klass = mono_class_from_mono_type (type->type);
10655 if (!mono_class_init (klass)) {
10656 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10660 res = mono_object_new_checked (domain, klass, &error);
10661 if (!mono_error_ok (&error)) {
10662 mono_error_set_pending_exception (&error);
10666 ptr_to_structure (src, res, &error);
10667 if (!mono_error_ok (&error)) {
10668 mono_error_set_pending_exception (&error);
10676 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10678 MonoMarshalType *info;
10681 int match_index = -1;
10683 MONO_CHECK_ARG_NULL (type, 0);
10684 MONO_CHECK_ARG_NULL (field_name, 0);
10686 fname = mono_string_to_utf8 (field_name);
10687 klass = mono_class_from_mono_type (type->type);
10688 if (!mono_class_init (klass)) {
10689 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10693 while (klass && match_index == -1) {
10694 MonoClassField* field;
10696 gpointer iter = NULL;
10697 while ((field = mono_class_get_fields (klass, &iter))) {
10698 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10700 if (!strcmp (fname, mono_field_get_name (field))) {
10707 if (match_index == -1)
10708 klass = klass->parent;
10713 if(match_index == -1) {
10714 MonoException* exc;
10717 /* Get back original class instance */
10718 klass = mono_class_from_mono_type (type->type);
10720 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10721 exc = mono_get_exception_argument ("fieldName", tmp);
10724 mono_set_pending_exception ((MonoException*)exc);
10728 info = mono_marshal_load_type_info (klass);
10729 return info->fields [match_index].offset;
10733 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10738 tres = mono_string_to_utf8 (string);
10742 len = strlen (tres) + 1;
10743 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10744 memcpy (ret, tres, len);
10749 return mono_string_to_utf8 (string);
10754 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10756 if (string == NULL)
10759 #ifdef TARGET_WIN32
10760 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10761 ((mono_string_length (string) + 1) * 2);
10763 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10765 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10766 res [mono_string_length (string)] = 0;
10772 mono_struct_delete_old (MonoClass *klass, char *ptr)
10774 MonoMarshalType *info;
10777 info = mono_marshal_load_type_info (klass);
10779 for (i = 0; i < info->num_fields; i++) {
10780 MonoMarshalConv conv;
10781 MonoType *ftype = info->fields [i].field->type;
10784 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10787 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10788 klass->unicode, &conv);
10790 cpos = ptr + info->fields [i].offset;
10793 case MONO_MARSHAL_CONV_NONE:
10794 if (MONO_TYPE_ISSTRUCT (ftype)) {
10795 mono_struct_delete_old (ftype->data.klass, cpos);
10799 case MONO_MARSHAL_CONV_STR_LPWSTR:
10800 /* We assume this field points inside a MonoString */
10802 case MONO_MARSHAL_CONV_STR_LPTSTR:
10803 #ifdef TARGET_WIN32
10804 /* We assume this field points inside a MonoString
10808 case MONO_MARSHAL_CONV_STR_LPSTR:
10809 case MONO_MARSHAL_CONV_STR_BSTR:
10810 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10811 case MONO_MARSHAL_CONV_STR_TBSTR:
10812 mono_marshal_free (*(gpointer *)cpos);
10822 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10826 MONO_CHECK_ARG_NULL (src,);
10827 MONO_CHECK_ARG_NULL (type,);
10829 klass = mono_class_from_mono_type (type->type);
10830 if (!mono_class_init (klass)) {
10831 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10835 mono_struct_delete_old (klass, (char *)src);
10839 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10842 size_t s = (size_t)size;
10845 /* This returns a valid pointer for size 0 on MS.NET */
10849 res = GlobalAlloc (GMEM_FIXED, s);
10851 res = g_try_malloc (s);
10854 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10862 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10865 size_t s = (size_t)size;
10868 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10873 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10875 res = g_try_realloc (ptr, s);
10878 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10886 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10896 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10901 res = CoTaskMemAlloc (size);
10903 if ((gulong)size == 0)
10904 /* This returns a valid pointer for size 0 on MS.NET */
10907 res = g_try_malloc ((gulong)size);
10910 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10917 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10920 CoTaskMemFree (ptr);
10927 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10932 res = CoTaskMemRealloc (ptr, size);
10934 res = g_try_realloc (ptr, (gulong)size);
10937 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10944 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10946 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10950 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10952 MonoClass *klass = mono_type_get_class (type->type);
10953 if (!mono_class_init (klass)) {
10954 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10958 return mono_ftnptr_to_delegate (klass, ftn);
10962 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10964 return mono_delegate_to_ftnptr (delegate);
10968 * mono_marshal_is_loading_type_info:
10970 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10974 mono_marshal_is_loading_type_info (MonoClass *klass)
10976 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10978 return g_slist_find (loads_list, klass) != NULL;
10982 * mono_marshal_load_type_info:
10984 * Initialize klass->marshal_info using information from metadata. This function can
10985 * recursively call itself, and the caller is responsible to avoid that by calling
10986 * mono_marshal_is_loading_type_info () beforehand.
10988 * LOCKING: Acquires the loader lock.
10991 mono_marshal_load_type_info (MonoClass* klass)
10994 guint32 native_size = 0, min_align = 1, packing;
10995 MonoMarshalType *info;
10996 MonoClassField* field;
10999 GSList *loads_list;
11001 g_assert (klass != NULL);
11003 if (klass->marshal_info)
11004 return klass->marshal_info;
11006 if (!klass->inited)
11007 mono_class_init (klass);
11009 if (klass->marshal_info)
11010 return klass->marshal_info;
11013 * This function can recursively call itself, so we keep the list of classes which are
11014 * under initialization in a TLS list.
11016 g_assert (!mono_marshal_is_loading_type_info (klass));
11017 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11018 loads_list = g_slist_prepend (loads_list, klass);
11019 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11022 while ((field = mono_class_get_fields (klass, &iter))) {
11023 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11025 if (mono_field_is_deleted (field))
11030 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11032 /* The mempool is protected by the loader lock */
11033 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11034 info->num_fields = count;
11036 /* Try to find a size for this type in metadata */
11037 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11039 if (klass->parent) {
11040 int parent_size = mono_class_native_size (klass->parent, NULL);
11042 /* Add parent size to real size */
11043 native_size += parent_size;
11044 info->native_size = parent_size;
11047 packing = klass->packing_size ? klass->packing_size : 8;
11050 while ((field = mono_class_get_fields (klass, &iter))) {
11054 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11057 if (mono_field_is_deleted (field))
11059 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11060 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11061 NULL, NULL, &info->fields [j].mspec);
11063 info->fields [j].field = field;
11065 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11066 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11067 /* This field is a hack inserted by MCS to empty structures */
11072 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11073 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11074 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11075 &align, TRUE, klass->unicode);
11076 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11077 min_align = MAX (align, min_align);
11078 info->fields [j].offset = info->native_size;
11079 info->fields [j].offset += align - 1;
11080 info->fields [j].offset &= ~(align - 1);
11081 info->native_size = info->fields [j].offset + size;
11083 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11084 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11085 &align, TRUE, klass->unicode);
11086 min_align = MAX (align, min_align);
11087 info->fields [j].offset = field->offset - sizeof (MonoObject);
11088 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11094 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11095 info->native_size = MAX (native_size, info->native_size);
11097 * If the provided Size is equal or larger than the calculated size, and there
11098 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11100 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11101 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11104 min_align = MIN (min_align, packing);
11108 if (info->native_size & (min_align - 1)) {
11109 info->native_size += min_align - 1;
11110 info->native_size &= ~(min_align - 1);
11113 info->min_align = min_align;
11115 /* Update the class's blittable info, if the layouts don't match */
11116 if (info->native_size != mono_class_value_size (klass, NULL))
11117 klass->blittable = FALSE;
11119 /* If this is an array type, ensure that we have element info */
11120 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11121 mono_marshal_load_type_info (klass->element_class);
11124 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11125 loads_list = g_slist_remove (loads_list, klass);
11126 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11128 mono_marshal_lock ();
11129 if (!klass->marshal_info) {
11130 /*We do double-checking locking on marshal_info */
11131 mono_memory_barrier ();
11132 klass->marshal_info = info;
11134 mono_marshal_unlock ();
11136 return klass->marshal_info;
11140 * mono_class_native_size:
11143 * Returns: the native size of an object instance (when marshaled
11144 * to unmanaged code)
11147 mono_class_native_size (MonoClass *klass, guint32 *align)
11149 if (!klass->marshal_info) {
11150 if (mono_marshal_is_loading_type_info (klass)) {
11155 mono_marshal_load_type_info (klass);
11160 *align = klass->marshal_info->min_align;
11162 return klass->marshal_info->native_size;
11166 * mono_type_native_stack_size:
11167 * @t: the type to return the size it uses on the stack
11169 * Returns: the number of bytes required to hold an instance of this
11170 * type on the native stack
11173 mono_type_native_stack_size (MonoType *t, guint32 *align)
11177 g_assert (t != NULL);
11183 *align = sizeof (gpointer);
11184 return sizeof (gpointer);
11188 case MONO_TYPE_BOOLEAN:
11189 case MONO_TYPE_CHAR:
11200 case MONO_TYPE_STRING:
11201 case MONO_TYPE_OBJECT:
11202 case MONO_TYPE_CLASS:
11203 case MONO_TYPE_SZARRAY:
11204 case MONO_TYPE_PTR:
11205 case MONO_TYPE_FNPTR:
11206 case MONO_TYPE_ARRAY:
11207 *align = sizeof (gpointer);
11208 return sizeof (gpointer);
11213 *align = MONO_ABI_ALIGNOF (double);
11217 *align = MONO_ABI_ALIGNOF (gint64);
11219 case MONO_TYPE_GENERICINST:
11220 if (!mono_type_generic_inst_is_valuetype (t)) {
11221 *align = sizeof (gpointer);
11222 return sizeof (gpointer);
11225 case MONO_TYPE_TYPEDBYREF:
11226 case MONO_TYPE_VALUETYPE: {
11228 MonoClass *klass = mono_class_from_mono_type (t);
11230 if (klass->enumtype)
11231 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11233 size = mono_class_native_size (klass, align);
11234 *align = *align + 3;
11244 g_error ("type 0x%02x unknown", t->type);
11250 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11251 gboolean as_field, gboolean unicode)
11253 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11256 switch (native_type) {
11257 case MONO_NATIVE_BOOLEAN:
11260 case MONO_NATIVE_I1:
11261 case MONO_NATIVE_U1:
11264 case MONO_NATIVE_I2:
11265 case MONO_NATIVE_U2:
11266 case MONO_NATIVE_VARIANTBOOL:
11269 case MONO_NATIVE_I4:
11270 case MONO_NATIVE_U4:
11271 case MONO_NATIVE_ERROR:
11274 case MONO_NATIVE_I8:
11275 case MONO_NATIVE_U8:
11276 *align = MONO_ABI_ALIGNOF (gint64);
11278 case MONO_NATIVE_R4:
11281 case MONO_NATIVE_R8:
11282 *align = MONO_ABI_ALIGNOF (double);
11284 case MONO_NATIVE_INT:
11285 case MONO_NATIVE_UINT:
11286 case MONO_NATIVE_LPSTR:
11287 case MONO_NATIVE_LPWSTR:
11288 case MONO_NATIVE_LPTSTR:
11289 case MONO_NATIVE_BSTR:
11290 case MONO_NATIVE_ANSIBSTR:
11291 case MONO_NATIVE_TBSTR:
11292 case MONO_NATIVE_LPARRAY:
11293 case MONO_NATIVE_SAFEARRAY:
11294 case MONO_NATIVE_IUNKNOWN:
11295 case MONO_NATIVE_IDISPATCH:
11296 case MONO_NATIVE_INTERFACE:
11297 case MONO_NATIVE_ASANY:
11298 case MONO_NATIVE_FUNC:
11299 case MONO_NATIVE_LPSTRUCT:
11300 *align = MONO_ABI_ALIGNOF (gpointer);
11301 return sizeof (gpointer);
11302 case MONO_NATIVE_STRUCT:
11303 klass = mono_class_from_mono_type (type);
11304 if (klass == mono_defaults.object_class &&
11305 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11309 return mono_class_native_size (klass, align);
11310 case MONO_NATIVE_BYVALTSTR: {
11311 int esize = unicode ? 2: 1;
11314 return mspec->data.array_data.num_elem * esize;
11316 case MONO_NATIVE_BYVALARRAY: {
11317 // FIXME: Have to consider ArraySubType
11319 klass = mono_class_from_mono_type (type);
11320 if (klass->element_class == mono_defaults.char_class) {
11321 esize = unicode ? 2 : 1;
11324 esize = mono_class_native_size (klass->element_class, align);
11327 return mspec->data.array_data.num_elem * esize;
11329 case MONO_NATIVE_CUSTOM:
11330 *align = sizeof (gpointer);
11331 return sizeof (gpointer);
11333 case MONO_NATIVE_CURRENCY:
11334 case MONO_NATIVE_VBBYREFSTR:
11336 g_error ("native type %02x not implemented", native_type);
11339 g_assert_not_reached ();
11343 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11345 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11354 t = &o->vtable->klass->byval_arg;
11358 case MONO_TYPE_PTR:
11361 case MONO_TYPE_BOOLEAN:
11364 case MONO_TYPE_CHAR:
11369 return mono_object_unbox (o);
11371 case MONO_TYPE_STRING:
11372 switch (string_encoding) {
11373 case MONO_NATIVE_LPWSTR:
11374 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11376 case MONO_NATIVE_LPSTR:
11377 return mono_string_to_lpstr ((MonoString*)o);
11380 g_warning ("marshaling conversion %d not implemented", string_encoding);
11381 g_assert_not_reached ();
11384 case MONO_TYPE_CLASS:
11385 case MONO_TYPE_VALUETYPE: {
11386 MonoMethod *method;
11389 MonoBoolean delete_old = FALSE;
11391 klass = t->data.klass;
11393 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11396 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11397 klass->blittable || klass->enumtype))
11398 return mono_object_unbox (o);
11400 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11401 if (!mono_error_ok (&error)) {
11402 mono_error_set_pending_exception (&error);
11406 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11407 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11411 pa [2] = &delete_old;
11413 mono_runtime_invoke_checked (method, NULL, pa, &error);
11414 if (!mono_error_ok (&error)) {
11415 mono_error_set_pending_exception (&error);
11425 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11429 /* This is a JIT icall, it sets the pending exception */
11431 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11440 t = &o->vtable->klass->byval_arg;
11442 case MONO_TYPE_STRING:
11443 switch (string_encoding) {
11444 case MONO_NATIVE_LPWSTR:
11445 case MONO_NATIVE_LPSTR:
11446 mono_marshal_free (ptr);
11449 g_warning ("marshaling conversion %d not implemented", string_encoding);
11450 g_assert_not_reached ();
11453 case MONO_TYPE_CLASS:
11454 case MONO_TYPE_VALUETYPE: {
11455 klass = t->data.klass;
11457 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11458 klass->blittable || klass->enumtype))
11461 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11462 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11468 mono_runtime_invoke_checked (method, NULL, pa, &error);
11469 if (!mono_error_ok (&error)) {
11470 mono_error_set_pending_exception (&error);
11475 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11476 mono_struct_delete_old (klass, (char *)ptr);
11479 mono_marshal_free (ptr);
11488 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11490 MonoMethodSignature *sig, *csig;
11491 MonoMethodBuilder *mb;
11496 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11497 mb->method->slot = -1;
11499 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11500 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11502 sig = mono_method_signature (method);
11503 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11504 csig->generic_param_count = 0;
11506 #ifndef DISABLE_JIT
11507 mono_mb_emit_ldarg (mb, 0);
11508 for (i = 0; i < csig->param_count; i++)
11509 mono_mb_emit_ldarg (mb, i + 1);
11510 mono_mb_emit_managed_call (mb, method, NULL);
11511 mono_mb_emit_byte (mb, CEE_RET);
11513 /* We can corlib internal methods */
11514 mb->skip_visibility = TRUE;
11516 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11517 info->d.generic_array_helper.method = method;
11518 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11526 * The mono_win32_compat_* functions are implementations of inline
11527 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11528 * although not exported by kernel32.
11530 * We map the appropiate kernel32 entries to these functions using
11531 * dllmaps declared in the global etc/mono/config.
11535 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11537 if (!dest || !source)
11540 memcpy (dest, source, length);
11544 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11546 memset (dest, fill, length);
11550 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11552 if (!dest || !source)
11555 memmove (dest, source, length);
11559 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11561 memset (dest, 0, length);
11565 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11570 for (i = 0; i < len; ++i)
11574 g_assert (i < len);
11577 while (byte && !(byte & 1))
11579 g_assert (byte == 1);
11582 *bitmask = buf [i];
11586 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11588 MonoMethodBuilder *mb;
11589 MonoMethodSignature *sig, *csig;
11590 MonoExceptionClause *clause;
11595 int i, param_count, sig_size, pos_leave;
11596 int coop_gc_var, coop_gc_dummy_local;
11600 klass = method->klass;
11601 image = method->klass->image;
11603 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11605 if ((res = mono_marshal_find_in_cache (cache, method)))
11608 sig = mono_method_signature (method);
11609 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11611 /* add "this" and exception param */
11612 param_count = sig->param_count + sig->hasthis + 1;
11614 /* dup & extend signature */
11615 csig = mono_metadata_signature_alloc (image, param_count);
11616 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11617 memcpy (csig, sig, sig_size);
11618 csig->param_count = param_count;
11621 csig->call_convention = MONO_CALL_DEFAULT;
11623 if (sig->hasthis) {
11625 csig->params [0] = &klass->byval_arg;
11626 /* move params up by one */
11627 for (i = 0; i < sig->param_count; i++)
11628 csig->params [i + 1] = sig->params [i];
11631 /* setup exception param as byref+[out] */
11632 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11633 &mono_defaults.exception_class->byval_arg);
11634 csig->params [param_count - 1]->byref = 1;
11635 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11637 /* convert struct return to object */
11638 if (MONO_TYPE_ISSTRUCT (sig->ret))
11639 csig->ret = &mono_defaults.object_class->byval_arg;
11641 #ifndef DISABLE_JIT
11642 /* local 0 (temp for exception object) */
11643 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11645 /* local 1 (temp for result) */
11646 if (!MONO_TYPE_IS_VOID (sig->ret))
11647 mono_mb_add_local (mb, sig->ret);
11649 if (mono_threads_is_coop_enabled ()) {
11650 /* local 4, the local to be used when calling the reset_blocking funcs */
11651 /* tons of code hardcode 3 to be the return var */
11652 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11653 /* local 5, the local used to get a stack address for suspend funcs */
11654 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11657 /* clear exception arg */
11658 mono_mb_emit_ldarg (mb, param_count - 1);
11659 mono_mb_emit_byte (mb, CEE_LDNULL);
11660 mono_mb_emit_byte (mb, CEE_STIND_REF);
11662 if (mono_threads_is_coop_enabled ()) {
11663 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11664 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11665 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11666 mono_mb_emit_stloc (mb, coop_gc_var);
11670 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11671 clause->try_offset = mono_mb_get_label (mb);
11673 /* push method's args */
11674 for (i = 0; i < param_count - 1; i++) {
11678 mono_mb_emit_ldarg (mb, i);
11680 /* get the byval type of the param */
11681 klass = mono_class_from_mono_type (csig->params [i]);
11682 type = &klass->byval_arg;
11684 /* unbox struct args */
11685 if (MONO_TYPE_ISSTRUCT (type)) {
11686 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11688 /* byref args & and the "this" arg must remain a ptr.
11689 Otherwise make a copy of the value type */
11690 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11691 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11693 csig->params [i] = &mono_defaults.object_class->byval_arg;
11698 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11699 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11701 mono_mb_emit_op (mb, CEE_CALL, method);
11703 /* save result at local 1 */
11704 if (!MONO_TYPE_IS_VOID (sig->ret))
11705 mono_mb_emit_stloc (mb, 1);
11707 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11710 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11711 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11712 clause->data.catch_class = mono_defaults.object_class;
11714 clause->handler_offset = mono_mb_get_label (mb);
11716 /* store exception at local 0 */
11717 mono_mb_emit_stloc (mb, 0);
11718 mono_mb_emit_ldarg (mb, param_count - 1);
11719 mono_mb_emit_ldloc (mb, 0);
11720 mono_mb_emit_byte (mb, CEE_STIND_REF);
11721 mono_mb_emit_branch (mb, CEE_LEAVE);
11723 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11725 mono_mb_set_clauses (mb, 1, clause);
11727 mono_mb_patch_branch (mb, pos_leave);
11730 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11731 mono_mb_emit_ldloc (mb, 1);
11733 /* box the return value */
11734 if (MONO_TYPE_ISSTRUCT (sig->ret))
11735 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11738 if (mono_threads_is_coop_enabled ()) {
11739 /* XXX merge reset_blocking_end with detach */
11740 mono_mb_emit_ldloc (mb, coop_gc_var);
11741 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11742 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11745 mono_mb_emit_byte (mb, CEE_RET);
11748 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11755 * mono_marshal_free_dynamic_wrappers:
11757 * Free wrappers of the dynamic method METHOD.
11760 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11762 MonoImage *image = method->klass->image;
11764 g_assert (method_is_dynamic (method));
11766 /* This could be called during shutdown */
11767 if (marshal_mutex_initialized)
11768 mono_marshal_lock ();
11770 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11771 * they could be shared with other methods ?
11773 if (image->wrapper_caches.runtime_invoke_direct_cache)
11774 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11775 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11776 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11777 // FIXME: Need to clear the caches in other images as well
11778 if (image->delegate_bound_static_invoke_cache)
11779 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11781 if (marshal_mutex_initialized)
11782 mono_marshal_unlock ();