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 save)
216 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
218 mono_register_jit_icall (func, name, sig, save);
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_marshal_init (void)
243 static gboolean module_initialized = FALSE;
245 if (!module_initialized) {
246 module_initialized = TRUE;
247 mono_os_mutex_init_recursive (&marshal_mutex);
248 marshal_mutex_initialized = TRUE;
250 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
251 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
252 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
253 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
254 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
255 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
256 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
257 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
258 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
259 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
260 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
261 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
262 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
263 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
264 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
265 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
266 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
267 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
268 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
269 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
270 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
271 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
272 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
273 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
274 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
275 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
276 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
277 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
278 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
279 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
280 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
281 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
282 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
283 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
284 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
285 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
286 register_icall (g_free, "g_free", "void ptr", FALSE);
287 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
288 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
289 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
290 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
291 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
292 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
293 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
294 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
295 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
296 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
298 mono_cominterop_init ();
299 mono_remoting_init ();
301 if (mono_threads_is_coop_enabled ()) {
302 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
303 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
304 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
305 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
311 mono_marshal_cleanup (void)
313 mono_cominterop_cleanup ();
315 mono_native_tls_free (load_type_info_tls_id);
316 mono_native_tls_free (last_error_tls_id);
317 mono_os_mutex_destroy (&marshal_mutex);
318 marshal_mutex_initialized = FALSE;
322 mono_marshal_lock_internal (void)
324 mono_marshal_lock ();
328 mono_marshal_unlock_internal (void)
330 mono_marshal_unlock ();
334 mono_delegate_to_ftnptr (MonoDelegate *delegate)
336 MonoMethod *method, *wrapper;
338 uint32_t target_handle = 0;
343 if (delegate->delegate_trampoline)
344 return delegate->delegate_trampoline;
346 klass = ((MonoObject *)delegate)->vtable->klass;
347 g_assert (klass->delegate);
349 method = delegate->method;
350 if (delegate->method_is_virtual)
351 method = mono_object_get_virtual_method (delegate->target, method);
353 if (mono_method_signature (method)->pinvoke) {
354 const char *exc_class, *exc_arg;
357 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
359 g_assert (exc_class);
360 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
365 if (delegate->target) {
366 /* Produce a location which can be embedded in JITted code */
367 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
370 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
372 delegate->delegate_trampoline = mono_compile_method (wrapper);
374 // Add the delegate to the delegate hash table
375 delegate_hash_table_add (delegate);
377 /* when the object is collected, collect the dynamic method, too */
378 mono_object_register_finalizer ((MonoObject*)delegate);
380 return delegate->delegate_trampoline;
384 * this hash table maps from a delegate trampoline object to a weak reference
385 * of the delegate. As an optimizations with a non-moving GC we store the
386 * object pointer itself, otherwise we use a GC handle.
388 static GHashTable *delegate_hash_table;
391 delegate_hash_table_new (void) {
392 return g_hash_table_new (NULL, NULL);
396 delegate_hash_table_remove (MonoDelegate *d)
398 guint32 gchandle = 0;
400 mono_marshal_lock ();
401 if (delegate_hash_table == NULL)
402 delegate_hash_table = delegate_hash_table_new ();
403 if (mono_gc_is_moving ())
404 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
405 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
406 mono_marshal_unlock ();
407 if (gchandle && mono_gc_is_moving ())
408 mono_gchandle_free (gchandle);
412 delegate_hash_table_add (MonoDelegate *d)
415 guint32 old_gchandle;
417 mono_marshal_lock ();
418 if (delegate_hash_table == NULL)
419 delegate_hash_table = delegate_hash_table_new ();
420 if (mono_gc_is_moving ()) {
421 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
422 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
423 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
425 mono_gchandle_free (old_gchandle);
427 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
429 mono_marshal_unlock ();
433 * mono_marshal_use_aot_wrappers:
435 * Instructs this module to use AOT compatible wrappers.
438 mono_marshal_use_aot_wrappers (gboolean use)
440 use_aot_wrappers = use;
444 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
446 MonoCustomAttrInfo *cinfo;
447 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
449 /* The attribute is only available in Net 2.0 */
450 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
452 * The pinvoke attributes are stored in a real custom attribute so we have to
455 cinfo = mono_custom_attrs_from_class (klass);
456 if (cinfo && !mono_runtime_get_no_exec ()) {
458 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
460 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
462 if (!mono_error_ok (&error)) {
463 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
464 mono_error_cleanup (&error);
468 mono_custom_attrs_free (cinfo);
474 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
483 mono_marshal_lock ();
484 if (delegate_hash_table == NULL)
485 delegate_hash_table = delegate_hash_table_new ();
487 if (mono_gc_is_moving ()) {
488 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
489 mono_marshal_unlock ();
491 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
495 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
496 mono_marshal_unlock ();
499 /* This is a native function, so construct a delegate for it */
500 MonoMethodSignature *sig;
502 MonoMarshalSpec **mspecs;
503 MonoMethod *invoke = mono_get_delegate_invoke (klass);
504 MonoMethodPInvoke piinfo;
505 MonoObject *this_obj;
508 if (use_aot_wrappers) {
509 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
510 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
512 memset (&piinfo, 0, sizeof (piinfo));
513 parse_unmanaged_function_pointer_attr (klass, &piinfo);
515 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
516 mono_method_get_marshal_info (invoke, mspecs);
517 /* Freed below so don't alloc from mempool */
518 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
521 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
524 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
526 mono_metadata_free_marshal_spec (mspecs [i]);
531 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
532 mono_error_raise_exception (&error); /* FIXME don't raise here */
533 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
536 if (d->object.vtable->domain != mono_domain_get ())
537 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
543 mono_delegate_free_ftnptr (MonoDelegate *delegate)
548 delegate_hash_table_remove (delegate);
550 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
552 if (!delegate->target) {
553 /* The wrapper method is shared between delegates -> no need to free it */
562 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
565 method = mono_jit_info_get_method (ji);
566 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
568 /*the target gchandle is the first entry after size and the wrapper itself.*/
569 gchandle = GPOINTER_TO_UINT (method_data [2]);
572 mono_gchandle_free (gchandle);
574 mono_runtime_free_method (mono_object_domain (delegate), method);
579 mono_string_from_byvalstr (const char *data, int max_len)
581 MonoDomain *domain = mono_domain_get ();
587 while (len < max_len - 1 && data [len])
590 return mono_string_new_len (domain, data, len);
594 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
597 MonoString *res = NULL;
598 MonoDomain *domain = mono_domain_get ();
604 while (data [len]) len++;
606 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
607 mono_error_raise_exception (&error);
612 mono_array_to_savearray (MonoArray *array)
617 g_assert_not_reached ();
622 mono_array_to_lparray (MonoArray *array)
625 gpointer *nativeArray = NULL;
626 int nativeArraySize = 0;
636 klass = array->obj.vtable->klass;
638 switch (klass->element_class->byval_arg.type) {
640 g_assert_not_reached ();
642 case MONO_TYPE_CLASS:
643 nativeArraySize = array->max_length;
644 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
645 for(i = 0; i < nativeArraySize; ++i)
646 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
649 case MONO_TYPE_BOOLEAN:
662 case MONO_TYPE_VALUETYPE:
666 case MONO_TYPE_GENERICINST:
667 case MONO_TYPE_OBJECT:
668 case MONO_TYPE_ARRAY:
669 case MONO_TYPE_SZARRAY:
670 case MONO_TYPE_STRING:
672 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
673 g_assert_not_reached ();
676 return array->vector;
680 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
691 klass = array->obj.vtable->klass;
693 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
694 for(i = 0; i < array->max_length; ++i)
695 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
702 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
704 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
706 if (elclass == mono_defaults.byte_class) {
707 GError *error = NULL;
711 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
714 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
718 g_error_free (error);
721 g_assert_not_reached ();
725 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
727 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
731 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
733 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
735 if (elclass == mono_defaults.byte_class) {
737 GError *error = NULL;
739 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
741 MonoException *exc = mono_get_exception_argument ("string", error->message);
742 g_error_free (error);
743 mono_raise_exception (exc);
746 memcpy (native_arr, as, MIN (strlen (as), elnum));
749 g_assert_not_reached ();
754 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
756 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
759 static MonoStringBuilder *
760 mono_string_builder_new (int starting_string_length)
762 static MonoClass *string_builder_class;
763 static MonoMethod *sb_ctor;
764 static void *args [1];
767 int initial_len = starting_string_length;
773 MonoMethodDesc *desc;
776 string_builder_class = mono_class_get_string_builder_class ();
777 g_assert (string_builder_class);
778 desc = mono_method_desc_new (":.ctor(int)", FALSE);
779 m = mono_method_desc_search_in_class (desc, string_builder_class);
781 mono_method_desc_free (desc);
782 mono_memory_barrier ();
786 // We make a new array in the _to_builder function, so this
787 // array will always be garbage collected.
788 args [0] = &initial_len;
790 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
791 mono_error_assert_ok (&error);
794 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
795 g_assert (exc == NULL);
796 mono_error_assert_ok (&error);
798 g_assert (sb->chunkChars->max_length >= initial_len);
804 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
806 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
807 gunichar2 *charSrc = (gunichar2 *)text;
808 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
810 sb->chunkLength = string_len;
816 mono_string_utf16_to_builder2 (gunichar2 *text)
822 for (len = 0; text [len] != 0; ++len);
824 MonoStringBuilder *sb = mono_string_builder_new (len);
825 mono_string_utf16_to_builder (sb, text);
831 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
836 int len = strlen (text);
837 if (len > mono_string_builder_capacity (sb))
838 len = mono_string_builder_capacity (sb);
840 GError *error = NULL;
842 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
845 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
846 mono_string_utf16_to_builder_copy (sb, ut, copied);
848 g_error_free (error);
854 mono_string_utf8_to_builder2 (char *text)
859 int len = strlen (text);
860 MonoStringBuilder *sb = mono_string_builder_new (len);
861 mono_string_utf8_to_builder (sb, text);
868 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
874 for (len = 0; text [len] != 0; ++len);
876 if (len > mono_string_builder_capacity (sb))
877 len = mono_string_builder_capacity (sb);
879 mono_string_utf16_to_builder_copy (sb, text, len);
883 * mono_string_builder_to_utf8:
884 * @sb: the string builder
886 * Converts to utf8 the contents of the MonoStringBuilder.
888 * Returns: a utf8 string with the contents of the StringBuilder.
890 * The return value must be released with g_free.
893 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
896 GError *gerror = NULL;
902 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
904 guint str_len = mono_string_builder_string_length (sb);
906 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
909 g_error_free (gerror);
911 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
914 guint len = mono_string_builder_capacity (sb) + 1;
915 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
916 if (!mono_error_ok (&error)) {
919 mono_error_raise_exception (&error);
922 g_assert (str_len < len);
923 memcpy (res, tmp, str_len * sizeof (gchar));
933 * mono_string_builder_to_utf16:
934 * @sb: the string builder
936 * Converts to utf16 the contents of the MonoStringBuilder.
938 * Returns: a utf16 string with the contents of the StringBuilder.
940 * The return value must not be freed.
943 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
950 g_assert (sb->chunkChars);
952 guint len = mono_string_builder_capacity (sb);
957 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
958 mono_error_raise_exception (&error);
965 MonoStringBuilder* chunk = sb;
967 if (chunk->chunkLength > 0) {
968 // Check that we will not overrun our boundaries.
969 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
971 if (chunk->chunkLength <= len) {
972 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
974 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
977 len -= chunk->chunkLength;
979 chunk = chunk->chunkPrevious;
980 } while (chunk != NULL);
986 mono_string_to_lpstr (MonoString *s)
991 GError *error = NULL;
997 as = CoTaskMemAlloc (1);
1002 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1004 MonoException *exc = mono_get_exception_argument ("string", error->message);
1005 g_error_free (error);
1006 mono_raise_exception(exc);
1009 as = CoTaskMemAlloc (len + 1);
1010 memcpy (as, tmp, len + 1);
1015 return mono_string_to_utf8 (s);
1020 mono_string_to_ansibstr (MonoString *string_obj)
1022 g_error ("UnmanagedMarshal.BStr is not implemented.");
1027 * mono_string_to_byvalstr:
1028 * @dst: Where to store the null-terminated utf8 decoded string.
1029 * @src: the MonoString to copy.
1030 * @size: the maximum number of bytes to copy.
1032 * Copies the MonoString pointed to by @src as a utf8 string
1033 * into @dst, it copies at most @size bytes into the destination.
1036 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1041 g_assert (dst != NULL);
1042 g_assert (size > 0);
1044 memset (dst, 0, size);
1048 s = mono_string_to_utf8 (src);
1049 len = MIN (size, strlen (s));
1052 memcpy (dst, s, len);
1057 * mono_string_to_byvalwstr:
1058 * @dst: Where to store the null-terminated utf16 decoded string.
1059 * @src: the MonoString to copy.
1060 * @size: the maximum number of bytes to copy.
1062 * Copies the MonoString pointed to by @src as a utf16 string into
1063 * @dst, it copies at most @size bytes into the destination (including
1064 * a terminating 16-bit zero terminator).
1067 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1071 g_assert (dst != NULL);
1072 g_assert (size > 1);
1075 memset (dst, 0, size * 2);
1079 len = MIN (size, (mono_string_length (src)));
1080 memcpy (dst, mono_string_chars (src), size * 2);
1081 if (size <= mono_string_length (src))
1083 *((gunichar2 *) dst + len) = 0;
1087 mono_string_new_len_wrapper (const char *text, guint length)
1089 return mono_string_new_len (mono_domain_get (), text, length);
1095 * mono_mb_emit_exception_marshal_directive:
1097 * This function assumes ownership of MSG, which should be malloc-ed.
1100 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1105 s = mono_image_strdup (mb->method->klass->image, msg);
1110 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1113 #endif /* !DISABLE_JIT */
1116 mono_type_to_ldind (MonoType *type)
1122 switch (type->type) {
1124 return CEE_LDIND_I1;
1126 case MONO_TYPE_BOOLEAN:
1127 return CEE_LDIND_U1;
1129 return CEE_LDIND_I2;
1131 case MONO_TYPE_CHAR:
1132 return CEE_LDIND_U2;
1134 return CEE_LDIND_I4;
1136 return CEE_LDIND_U4;
1140 case MONO_TYPE_FNPTR:
1142 case MONO_TYPE_CLASS:
1143 case MONO_TYPE_STRING:
1144 case MONO_TYPE_OBJECT:
1145 case MONO_TYPE_SZARRAY:
1146 case MONO_TYPE_ARRAY:
1147 return CEE_LDIND_REF;
1150 return CEE_LDIND_I8;
1152 return CEE_LDIND_R4;
1154 return CEE_LDIND_R8;
1155 case MONO_TYPE_VALUETYPE:
1156 if (type->data.klass->enumtype) {
1157 type = mono_class_enum_basetype (type->data.klass);
1161 case MONO_TYPE_TYPEDBYREF:
1163 case MONO_TYPE_GENERICINST:
1164 type = &type->data.generic_class->container_class->byval_arg;
1167 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1173 mono_type_to_stind (MonoType *type)
1179 switch (type->type) {
1182 case MONO_TYPE_BOOLEAN:
1183 return CEE_STIND_I1;
1186 case MONO_TYPE_CHAR:
1187 return CEE_STIND_I2;
1190 return CEE_STIND_I4;
1194 case MONO_TYPE_FNPTR:
1196 case MONO_TYPE_CLASS:
1197 case MONO_TYPE_STRING:
1198 case MONO_TYPE_OBJECT:
1199 case MONO_TYPE_SZARRAY:
1200 case MONO_TYPE_ARRAY:
1201 return CEE_STIND_REF;
1204 return CEE_STIND_I8;
1206 return CEE_STIND_R4;
1208 return CEE_STIND_R8;
1209 case MONO_TYPE_VALUETYPE:
1210 if (type->data.klass->enumtype) {
1211 type = mono_class_enum_basetype (type->data.klass);
1215 case MONO_TYPE_TYPEDBYREF:
1217 case MONO_TYPE_GENERICINST:
1218 type = &type->data.generic_class->container_class->byval_arg;
1221 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1229 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1232 case MONO_MARSHAL_CONV_BOOL_I4:
1233 mono_mb_emit_ldloc (mb, 1);
1234 mono_mb_emit_ldloc (mb, 0);
1235 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1236 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1237 mono_mb_emit_byte (mb, 3);
1238 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1239 mono_mb_emit_byte (mb, CEE_BR_S);
1240 mono_mb_emit_byte (mb, 1);
1241 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1242 mono_mb_emit_byte (mb, CEE_STIND_I1);
1244 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1245 mono_mb_emit_ldloc (mb, 1);
1246 mono_mb_emit_ldloc (mb, 0);
1247 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1248 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1249 mono_mb_emit_byte (mb, 3);
1250 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1251 mono_mb_emit_byte (mb, CEE_BR_S);
1252 mono_mb_emit_byte (mb, 1);
1253 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1254 mono_mb_emit_byte (mb, CEE_STIND_I1);
1256 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1257 MonoClass *eklass = NULL;
1260 if (type->type == MONO_TYPE_SZARRAY) {
1261 eklass = type->data.klass;
1263 g_assert_not_reached ();
1266 esize = mono_class_native_size (eklass, NULL);
1268 /* create a new array */
1269 mono_mb_emit_ldloc (mb, 1);
1270 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1271 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1272 mono_mb_emit_byte (mb, CEE_STIND_I);
1274 if (eklass->blittable) {
1275 /* copy the elements */
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_byte (mb, CEE_LDIND_I);
1278 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1279 mono_mb_emit_byte (mb, CEE_ADD);
1280 mono_mb_emit_ldloc (mb, 0);
1281 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1282 mono_mb_emit_byte (mb, CEE_PREFIX1);
1283 mono_mb_emit_byte (mb, CEE_CPBLK);
1286 int array_var, src_var, dst_var, index_var;
1287 guint32 label2, label3;
1289 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1290 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1291 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1294 mono_mb_emit_ldloc (mb, 1);
1295 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1296 mono_mb_emit_stloc (mb, array_var);
1298 /* save the old src pointer */
1299 mono_mb_emit_ldloc (mb, 0);
1300 mono_mb_emit_stloc (mb, src_var);
1301 /* save the old dst pointer */
1302 mono_mb_emit_ldloc (mb, 1);
1303 mono_mb_emit_stloc (mb, dst_var);
1305 /* Emit marshalling loop */
1306 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1307 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1308 mono_mb_emit_stloc (mb, index_var);
1311 label2 = mono_mb_get_label (mb);
1312 mono_mb_emit_ldloc (mb, index_var);
1313 mono_mb_emit_ldloc (mb, array_var);
1314 mono_mb_emit_byte (mb, CEE_LDLEN);
1315 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1317 /* src is already set */
1320 mono_mb_emit_ldloc (mb, array_var);
1321 mono_mb_emit_ldloc (mb, index_var);
1322 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1323 mono_mb_emit_stloc (mb, 1);
1325 /* Do the conversion */
1326 emit_struct_conv (mb, eklass, TRUE);
1329 mono_mb_emit_add_to_local (mb, index_var, 1);
1331 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1333 mono_mb_patch_branch (mb, label3);
1335 /* restore the old src pointer */
1336 mono_mb_emit_ldloc (mb, src_var);
1337 mono_mb_emit_stloc (mb, 0);
1338 /* restore the old dst pointer */
1339 mono_mb_emit_ldloc (mb, dst_var);
1340 mono_mb_emit_stloc (mb, 1);
1344 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1345 MonoClass *eclass = mono_defaults.char_class;
1347 /* create a new array */
1348 mono_mb_emit_ldloc (mb, 1);
1349 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1350 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1351 mono_mb_emit_byte (mb, CEE_STIND_REF);
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1355 mono_mb_emit_ldloc (mb, 0);
1356 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1357 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1360 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1361 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1362 mono_mb_emit_ldloc (mb, 1);
1363 mono_mb_emit_ldloc (mb, 0);
1364 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1365 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1367 mono_mb_emit_ldloc (mb, 1);
1368 mono_mb_emit_ldloc (mb, 0);
1369 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1371 mono_mb_emit_byte (mb, CEE_STIND_REF);
1373 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1374 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1375 mono_mb_emit_ldloc (mb, 1);
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1378 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1380 mono_mb_emit_ldloc (mb, 1);
1381 mono_mb_emit_ldloc (mb, 0);
1382 mono_mb_emit_icall (mb, mono_string_from_utf16);
1384 mono_mb_emit_byte (mb, CEE_STIND_REF);
1386 case MONO_MARSHAL_CONV_STR_LPTSTR:
1387 mono_mb_emit_ldloc (mb, 1);
1388 mono_mb_emit_ldloc (mb, 0);
1389 mono_mb_emit_byte (mb, CEE_LDIND_I);
1391 mono_mb_emit_icall (mb, mono_string_from_utf16);
1393 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1395 mono_mb_emit_byte (mb, CEE_STIND_REF);
1397 case MONO_MARSHAL_CONV_STR_LPSTR:
1398 mono_mb_emit_ldloc (mb, 1);
1399 mono_mb_emit_ldloc (mb, 0);
1400 mono_mb_emit_byte (mb, CEE_LDIND_I);
1401 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1402 mono_mb_emit_byte (mb, CEE_STIND_REF);
1404 case MONO_MARSHAL_CONV_STR_LPWSTR:
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_ldloc (mb, 0);
1407 mono_mb_emit_byte (mb, CEE_LDIND_I);
1408 mono_mb_emit_icall (mb, mono_string_from_utf16);
1409 mono_mb_emit_byte (mb, CEE_STIND_REF);
1411 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1412 MonoClass *klass = mono_class_from_mono_type (type);
1413 int src_var, dst_var;
1415 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1416 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1418 /* *dst = new object */
1419 mono_mb_emit_ldloc (mb, 1);
1420 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1421 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1422 mono_mb_emit_byte (mb, CEE_STIND_REF);
1424 /* save the old src pointer */
1425 mono_mb_emit_ldloc (mb, 0);
1426 mono_mb_emit_stloc (mb, src_var);
1427 /* save the old dst pointer */
1428 mono_mb_emit_ldloc (mb, 1);
1429 mono_mb_emit_stloc (mb, dst_var);
1431 /* dst = pointer to newly created object data */
1432 mono_mb_emit_ldloc (mb, 1);
1433 mono_mb_emit_byte (mb, CEE_LDIND_I);
1434 mono_mb_emit_icon (mb, sizeof (MonoObject));
1435 mono_mb_emit_byte (mb, CEE_ADD);
1436 mono_mb_emit_stloc (mb, 1);
1438 emit_struct_conv (mb, klass, TRUE);
1440 /* restore the old src pointer */
1441 mono_mb_emit_ldloc (mb, src_var);
1442 mono_mb_emit_stloc (mb, 0);
1443 /* restore the old dst pointer */
1444 mono_mb_emit_ldloc (mb, dst_var);
1445 mono_mb_emit_stloc (mb, 1);
1448 case MONO_MARSHAL_CONV_DEL_FTN: {
1449 MonoClass *klass = mono_class_from_mono_type (type);
1451 mono_mb_emit_ldloc (mb, 1);
1452 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1453 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_byte (mb, CEE_LDIND_I);
1456 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1457 mono_mb_emit_byte (mb, CEE_STIND_REF);
1460 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1461 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1465 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1466 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1467 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1468 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1470 #endif /* DISABLE_COM */
1472 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1474 * Passing SafeHandles as ref does not allow the unmanaged code
1475 * to change the SafeHandle value. If the value is changed,
1476 * we should issue a diagnostic exception (NotSupportedException)
1477 * that informs the user that changes to handles in unmanaged code
1480 * Since we currently have no access to the original
1481 * SafeHandle that was used during the marshalling,
1482 * for now we just ignore this, and ignore/discard any
1483 * changes that might have happened to the handle.
1488 case MONO_MARSHAL_CONV_HANDLEREF: {
1490 * Passing HandleRefs in a struct that is ref()ed does not
1491 * copy the values back to the HandleRef
1496 case MONO_MARSHAL_CONV_STR_BSTR:
1497 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1498 case MONO_MARSHAL_CONV_STR_TBSTR:
1499 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1501 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1503 mono_mb_emit_exception_marshal_directive (mb, msg);
1510 conv_to_icall (MonoMarshalConv conv)
1513 case MONO_MARSHAL_CONV_STR_LPWSTR:
1514 return mono_marshal_string_to_utf16;
1515 case MONO_MARSHAL_CONV_LPWSTR_STR:
1516 return mono_string_from_utf16;
1517 case MONO_MARSHAL_CONV_LPTSTR_STR:
1518 return mono_string_new_wrapper;
1519 case MONO_MARSHAL_CONV_LPSTR_STR:
1520 return mono_string_new_wrapper;
1521 case MONO_MARSHAL_CONV_STR_LPTSTR:
1523 return mono_marshal_string_to_utf16;
1525 return mono_string_to_lpstr;
1527 case MONO_MARSHAL_CONV_STR_LPSTR:
1528 return mono_string_to_lpstr;
1529 case MONO_MARSHAL_CONV_STR_BSTR:
1530 return mono_string_to_bstr;
1531 case MONO_MARSHAL_CONV_BSTR_STR:
1532 return mono_string_from_bstr;
1533 case MONO_MARSHAL_CONV_STR_TBSTR:
1534 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1535 return mono_string_to_ansibstr;
1536 case MONO_MARSHAL_CONV_SB_LPSTR:
1537 return mono_string_builder_to_utf8;
1538 case MONO_MARSHAL_CONV_SB_LPTSTR:
1540 return mono_string_builder_to_utf16;
1542 return mono_string_builder_to_utf8;
1544 case MONO_MARSHAL_CONV_SB_LPWSTR:
1545 return mono_string_builder_to_utf16;
1546 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1547 return mono_array_to_savearray;
1548 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1549 return mono_array_to_lparray;
1550 case MONO_MARSHAL_FREE_LPARRAY:
1551 return mono_free_lparray;
1552 case MONO_MARSHAL_CONV_DEL_FTN:
1553 return mono_delegate_to_ftnptr;
1554 case MONO_MARSHAL_CONV_FTN_DEL:
1555 return mono_ftnptr_to_delegate;
1556 case MONO_MARSHAL_CONV_LPSTR_SB:
1557 return mono_string_utf8_to_builder;
1558 case MONO_MARSHAL_CONV_LPTSTR_SB:
1560 return mono_string_utf16_to_builder;
1562 return mono_string_utf8_to_builder;
1564 case MONO_MARSHAL_CONV_LPWSTR_SB:
1565 return mono_string_utf16_to_builder;
1566 case MONO_MARSHAL_FREE_ARRAY:
1567 return mono_marshal_free_array;
1568 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1569 return mono_string_to_byvalstr;
1570 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1571 return mono_string_to_byvalwstr;
1573 g_assert_not_reached ();
1580 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1585 case MONO_MARSHAL_CONV_BOOL_I4:
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_ldloc (mb, 0);
1588 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1589 mono_mb_emit_byte (mb, CEE_STIND_I4);
1591 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1592 mono_mb_emit_ldloc (mb, 1);
1593 mono_mb_emit_ldloc (mb, 0);
1594 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1595 mono_mb_emit_byte (mb, CEE_NEG);
1596 mono_mb_emit_byte (mb, CEE_STIND_I2);
1598 case MONO_MARSHAL_CONV_STR_LPWSTR:
1599 case MONO_MARSHAL_CONV_STR_LPSTR:
1600 case MONO_MARSHAL_CONV_STR_LPTSTR:
1601 case MONO_MARSHAL_CONV_STR_BSTR:
1602 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1603 case MONO_MARSHAL_CONV_STR_TBSTR: {
1606 /* free space if free == true */
1607 mono_mb_emit_ldloc (mb, 2);
1608 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1609 mono_mb_emit_ldloc (mb, 1);
1610 mono_mb_emit_byte (mb, CEE_LDIND_I);
1611 mono_mb_emit_icall (mb, g_free);
1612 mono_mb_patch_short_branch (mb, pos);
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_ldloc (mb, 0);
1616 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1617 mono_mb_emit_icall (mb, conv_to_icall (conv));
1618 mono_mb_emit_byte (mb, CEE_STIND_I);
1621 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1622 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1623 case MONO_MARSHAL_CONV_DEL_FTN:
1624 mono_mb_emit_ldloc (mb, 1);
1625 mono_mb_emit_ldloc (mb, 0);
1626 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1627 mono_mb_emit_icall (mb, conv_to_icall (conv));
1628 mono_mb_emit_byte (mb, CEE_STIND_I);
1630 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1631 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1634 mono_mb_emit_ldloc (mb, 1); /* dst */
1635 mono_mb_emit_ldloc (mb, 0);
1636 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1637 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1638 mono_mb_emit_icall (mb, conv_to_icall (conv));
1641 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1642 MonoClass *eklass = NULL;
1645 if (type->type == MONO_TYPE_SZARRAY) {
1646 eklass = type->data.klass;
1648 g_assert_not_reached ();
1651 if (eklass->valuetype)
1652 esize = mono_class_native_size (eklass, NULL);
1654 esize = sizeof (gpointer);
1656 mono_mb_emit_ldloc (mb, 0);
1657 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1658 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1660 if (eklass->blittable) {
1661 mono_mb_emit_ldloc (mb, 1);
1662 mono_mb_emit_ldloc (mb, 0);
1663 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1664 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1665 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1666 mono_mb_emit_byte (mb, CEE_PREFIX1);
1667 mono_mb_emit_byte (mb, CEE_CPBLK);
1669 int array_var, src_var, dst_var, index_var;
1670 guint32 label2, label3;
1672 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1673 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1674 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1679 mono_mb_emit_stloc (mb, array_var);
1681 /* save the old src pointer */
1682 mono_mb_emit_ldloc (mb, 0);
1683 mono_mb_emit_stloc (mb, src_var);
1684 /* save the old dst pointer */
1685 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_stloc (mb, dst_var);
1688 /* Emit marshalling loop */
1689 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1690 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1691 mono_mb_emit_stloc (mb, index_var);
1694 label2 = mono_mb_get_label (mb);
1695 mono_mb_emit_ldloc (mb, index_var);
1696 mono_mb_emit_ldloc (mb, array_var);
1697 mono_mb_emit_byte (mb, CEE_LDLEN);
1698 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1701 mono_mb_emit_ldloc (mb, array_var);
1702 mono_mb_emit_ldloc (mb, index_var);
1703 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1704 mono_mb_emit_stloc (mb, 0);
1706 /* dst is already set */
1708 /* Do the conversion */
1709 emit_struct_conv (mb, eklass, FALSE);
1712 mono_mb_emit_add_to_local (mb, index_var, 1);
1714 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1716 mono_mb_patch_branch (mb, label3);
1718 /* restore the old src pointer */
1719 mono_mb_emit_ldloc (mb, src_var);
1720 mono_mb_emit_stloc (mb, 0);
1721 /* restore the old dst pointer */
1722 mono_mb_emit_ldloc (mb, dst_var);
1723 mono_mb_emit_stloc (mb, 1);
1726 mono_mb_patch_branch (mb, pos);
1729 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1730 mono_mb_emit_ldloc (mb, 0);
1731 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1732 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1734 mono_mb_emit_ldloc (mb, 1);
1735 mono_mb_emit_ldloc (mb, 0);
1736 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1737 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1738 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1739 mono_mb_patch_short_branch (mb, pos);
1742 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1743 int src_var, dst_var;
1745 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1746 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1748 mono_mb_emit_ldloc (mb, 0);
1749 mono_mb_emit_byte (mb, CEE_LDIND_I);
1750 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1752 /* save the old src pointer */
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_stloc (mb, src_var);
1755 /* save the old dst pointer */
1756 mono_mb_emit_ldloc (mb, 1);
1757 mono_mb_emit_stloc (mb, dst_var);
1759 /* src = pointer to object data */
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_byte (mb, CEE_LDIND_I);
1762 mono_mb_emit_icon (mb, sizeof (MonoObject));
1763 mono_mb_emit_byte (mb, CEE_ADD);
1764 mono_mb_emit_stloc (mb, 0);
1766 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1768 /* restore the old src pointer */
1769 mono_mb_emit_ldloc (mb, src_var);
1770 mono_mb_emit_stloc (mb, 0);
1771 /* restore the old dst pointer */
1772 mono_mb_emit_ldloc (mb, dst_var);
1773 mono_mb_emit_stloc (mb, 1);
1775 mono_mb_patch_branch (mb, pos);
1780 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1781 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1782 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1783 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1785 #endif /* DISABLE_COM */
1787 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1790 mono_mb_emit_ldloc (mb, 0);
1791 mono_mb_emit_byte (mb, CEE_LDIND_I);
1792 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1793 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1794 mono_mb_patch_branch (mb, pos);
1796 /* Pull the handle field from SafeHandle */
1797 mono_mb_emit_ldloc (mb, 1);
1798 mono_mb_emit_ldloc (mb, 0);
1799 mono_mb_emit_byte (mb, CEE_LDIND_I);
1800 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1801 mono_mb_emit_byte (mb, CEE_LDIND_I);
1802 mono_mb_emit_byte (mb, CEE_STIND_I);
1806 case MONO_MARSHAL_CONV_HANDLEREF: {
1807 mono_mb_emit_ldloc (mb, 1);
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1810 mono_mb_emit_byte (mb, CEE_ADD);
1811 mono_mb_emit_byte (mb, CEE_LDIND_I);
1812 mono_mb_emit_byte (mb, CEE_STIND_I);
1817 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1818 MonoException *exc = mono_get_exception_not_implemented (msg);
1819 g_warning ("%s", msg);
1821 mono_raise_exception (exc);
1827 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1828 MonoMarshalNative string_encoding)
1830 MonoMarshalType *info;
1834 emit_struct_conv(mb, klass->parent, to_object);
1836 info = mono_marshal_load_type_info (klass);
1838 if (info->native_size == 0)
1841 if (klass->blittable) {
1842 int msize = mono_class_value_size (klass, NULL);
1843 g_assert (msize == info->native_size);
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_icon (mb, msize);
1847 mono_mb_emit_byte (mb, CEE_PREFIX1);
1848 mono_mb_emit_byte (mb, CEE_CPBLK);
1850 mono_mb_emit_add_to_local (mb, 0, msize);
1851 mono_mb_emit_add_to_local (mb, 1, msize);
1855 if (klass != mono_class_try_get_safehandle_class ()) {
1856 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1857 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1858 mono_type_full_name (&klass->byval_arg));
1859 mono_mb_emit_exception_marshal_directive (mb, msg);
1864 for (i = 0; i < info->num_fields; i++) {
1865 MonoMarshalNative ntype;
1866 MonoMarshalConv conv;
1867 MonoType *ftype = info->fields [i].field->type;
1870 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1872 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1875 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1878 msize = klass->instance_size - info->fields [i].field->offset;
1879 usize = info->native_size - info->fields [i].offset;
1881 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1882 usize = info->fields [i + 1].offset - info->fields [i].offset;
1885 if (klass != mono_class_try_get_safehandle_class ()){
1887 * FIXME: Should really check for usize==0 and msize>0, but we apply
1888 * the layout to the managed structure as well.
1891 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1892 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1893 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1894 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1895 "reference field at the same offset as another field.",
1896 mono_type_full_name (&klass->byval_arg));
1901 case MONO_MARSHAL_CONV_NONE: {
1904 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1905 ftype->type == MONO_TYPE_U) {
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_byte (mb, CEE_STIND_I);
1920 case MONO_TYPE_BOOLEAN:
1923 case MONO_TYPE_CHAR:
1929 mono_mb_emit_ldloc (mb, 1);
1930 mono_mb_emit_ldloc (mb, 0);
1931 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1933 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1934 mono_mb_emit_byte (mb, CEE_STIND_I2);
1936 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1937 mono_mb_emit_byte (mb, CEE_STIND_I1);
1940 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1941 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1944 case MONO_TYPE_VALUETYPE: {
1945 int src_var, dst_var;
1947 if (ftype->data.klass->enumtype) {
1948 ftype = mono_class_enum_basetype (ftype->data.klass);
1952 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1953 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1955 /* save the old src pointer */
1956 mono_mb_emit_ldloc (mb, 0);
1957 mono_mb_emit_stloc (mb, src_var);
1958 /* save the old dst pointer */
1959 mono_mb_emit_ldloc (mb, 1);
1960 mono_mb_emit_stloc (mb, dst_var);
1962 emit_struct_conv (mb, ftype->data.klass, to_object);
1964 /* restore the old src pointer */
1965 mono_mb_emit_ldloc (mb, src_var);
1966 mono_mb_emit_stloc (mb, 0);
1967 /* restore the old dst pointer */
1968 mono_mb_emit_ldloc (mb, dst_var);
1969 mono_mb_emit_stloc (mb, 1);
1972 case MONO_TYPE_OBJECT: {
1975 static MonoMethod *variant_clear = NULL;
1976 static MonoMethod *get_object_for_native_variant = NULL;
1979 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1980 if (!get_object_for_native_variant)
1981 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1982 mono_mb_emit_ldloc (mb, 1);
1983 mono_mb_emit_ldloc (mb, 0);
1984 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1985 mono_mb_emit_byte (mb, CEE_STIND_REF);
1987 mono_mb_emit_ldloc (mb, 0);
1988 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1991 static MonoMethod *get_native_variant_for_object = NULL;
1993 if (!get_native_variant_for_object)
1994 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1996 mono_mb_emit_ldloc (mb, 0);
1997 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1998 mono_mb_emit_ldloc (mb, 1);
1999 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2002 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2003 mono_mb_emit_exception_marshal_directive (mb, msg);
2009 g_warning ("marshaling type %02x not implemented", ftype->type);
2010 g_assert_not_reached ();
2015 int src_var, dst_var;
2017 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2018 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2020 /* save the old src pointer */
2021 mono_mb_emit_ldloc (mb, 0);
2022 mono_mb_emit_stloc (mb, src_var);
2023 /* save the old dst pointer */
2024 mono_mb_emit_ldloc (mb, 1);
2025 mono_mb_emit_stloc (mb, dst_var);
2028 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2030 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2032 /* restore the old src pointer */
2033 mono_mb_emit_ldloc (mb, src_var);
2034 mono_mb_emit_stloc (mb, 0);
2035 /* restore the old dst pointer */
2036 mono_mb_emit_ldloc (mb, dst_var);
2037 mono_mb_emit_stloc (mb, 1);
2042 mono_mb_emit_add_to_local (mb, 0, usize);
2043 mono_mb_emit_add_to_local (mb, 1, msize);
2045 mono_mb_emit_add_to_local (mb, 0, msize);
2046 mono_mb_emit_add_to_local (mb, 1, usize);
2052 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2054 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2058 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2060 /* Call DestroyStructure */
2061 /* FIXME: Only do this if needed */
2062 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2063 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2064 mono_mb_emit_ldloc (mb, struct_var);
2065 mono_mb_emit_icall (mb, mono_struct_delete_old);
2069 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2071 int pos_noabort, pos_noex;
2073 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2074 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2075 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2076 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2078 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2079 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2081 mono_mb_emit_icall (mb, checkpoint_func);
2082 /* Throw the exception returned by the checkpoint function, if any */
2083 mono_mb_emit_byte (mb, CEE_DUP);
2084 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2085 mono_mb_emit_byte (mb, CEE_THROW);
2086 mono_mb_patch_branch (mb, pos_noex);
2087 mono_mb_emit_byte (mb, CEE_POP);
2089 mono_mb_patch_branch (mb, pos_noabort);
2093 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2095 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2098 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2102 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2104 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2108 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2110 emit_thread_interrupt_checkpoint (mb);
2114 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2116 emit_thread_force_interrupt_checkpoint (mb);
2119 #endif /* DISABLE_JIT */
2121 static MonoAsyncResult *
2122 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2124 MonoMulticastDelegate *mcast_delegate;
2128 g_assert (delegate);
2129 mcast_delegate = (MonoMulticastDelegate *) delegate;
2130 if (mcast_delegate->delegates != NULL)
2131 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2133 #ifndef DISABLE_REMOTING
2134 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2136 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2137 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2139 /* If the target is a proxy, make a direct call. Is proxy's work
2140 // to make the call asynchronous.
2142 MonoMethodMessage *msg;
2143 MonoDelegate *async_callback;
2145 MonoAsyncResult *ares;
2147 MonoArray *out_args;
2148 method = delegate->method;
2150 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2151 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2152 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2153 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2154 MONO_OBJECT_SETREF (msg, async_result, ares);
2155 msg->call_type = CallType_BeginInvoke;
2158 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2160 mono_raise_exception ((MonoException *) exc);
2166 klass = delegate->object.vtable->klass;
2168 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2170 method = mono_get_delegate_invoke (klass);
2173 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2179 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2181 int i, params_var, tmp_var;
2183 /* allocate local (pointer) *params[] */
2184 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2185 /* allocate local (pointer) tmp */
2186 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2188 /* alloate space on stack to store an array of pointers to the arguments */
2189 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2190 mono_mb_emit_byte (mb, CEE_PREFIX1);
2191 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2192 mono_mb_emit_stloc (mb, params_var);
2195 mono_mb_emit_ldloc (mb, params_var);
2196 mono_mb_emit_stloc (mb, tmp_var);
2198 if (save_this && sig->hasthis) {
2199 mono_mb_emit_ldloc (mb, tmp_var);
2200 mono_mb_emit_ldarg_addr (mb, 0);
2201 mono_mb_emit_byte (mb, CEE_STIND_I);
2202 /* tmp = tmp + sizeof (gpointer) */
2203 if (sig->param_count)
2204 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2208 for (i = 0; i < sig->param_count; i++) {
2209 mono_mb_emit_ldloc (mb, tmp_var);
2210 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2211 mono_mb_emit_byte (mb, CEE_STIND_I);
2212 /* tmp = tmp + sizeof (gpointer) */
2213 if (i < (sig->param_count - 1))
2214 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2220 #endif /* DISABLE_JIT */
2223 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2227 GString *res = g_string_new ("");
2230 g_string_append (res, prefix);
2231 g_string_append_c (res, '_');
2234 mono_type_get_desc (res, sig->ret, FALSE);
2237 g_string_append (res, "__this__");
2239 for (i = 0; i < sig->param_count; ++i) {
2240 g_string_append_c (res, '_');
2241 mono_type_get_desc (res, sig->params [i], FALSE);
2244 g_string_free (res, FALSE);
2249 * mono_marshal_get_string_encoding:
2251 * Return the string encoding which should be used for a given parameter.
2253 static MonoMarshalNative
2254 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2256 /* First try the parameter marshal info */
2258 if (spec->native == MONO_NATIVE_LPARRAY) {
2259 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2260 return spec->data.array_data.elem_type;
2263 return spec->native;
2267 return MONO_NATIVE_LPSTR;
2269 /* Then try the method level marshal info */
2270 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2271 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2272 return MONO_NATIVE_LPSTR;
2273 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2274 return MONO_NATIVE_LPWSTR;
2275 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2277 return MONO_NATIVE_LPWSTR;
2279 return MONO_NATIVE_LPSTR;
2282 return MONO_NATIVE_LPSTR;
2286 static MonoMarshalConv
2287 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2289 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2292 case MONO_NATIVE_LPWSTR:
2293 return MONO_MARSHAL_CONV_STR_LPWSTR;
2294 case MONO_NATIVE_LPSTR:
2295 case MONO_NATIVE_VBBYREFSTR:
2296 return MONO_MARSHAL_CONV_STR_LPSTR;
2297 case MONO_NATIVE_LPTSTR:
2298 return MONO_MARSHAL_CONV_STR_LPTSTR;
2299 case MONO_NATIVE_BSTR:
2300 return MONO_MARSHAL_CONV_STR_BSTR;
2302 return (MonoMarshalConv)-1;
2306 static MonoMarshalConv
2307 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2309 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2312 case MONO_NATIVE_LPWSTR:
2313 return MONO_MARSHAL_CONV_SB_LPWSTR;
2315 case MONO_NATIVE_LPSTR:
2316 return MONO_MARSHAL_CONV_SB_LPSTR;
2318 case MONO_NATIVE_LPTSTR:
2319 return MONO_MARSHAL_CONV_SB_LPTSTR;
2322 return (MonoMarshalConv)-1;
2326 static MonoMarshalConv
2327 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2329 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2334 case MONO_NATIVE_LPWSTR:
2336 return MONO_MARSHAL_CONV_LPWSTR_STR;
2337 case MONO_NATIVE_LPSTR:
2338 case MONO_NATIVE_VBBYREFSTR:
2339 return MONO_MARSHAL_CONV_LPSTR_STR;
2340 case MONO_NATIVE_LPTSTR:
2341 return MONO_MARSHAL_CONV_LPTSTR_STR;
2342 case MONO_NATIVE_BSTR:
2343 return MONO_MARSHAL_CONV_BSTR_STR;
2345 return (MonoMarshalConv)-1;
2349 static MonoMarshalConv
2350 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2352 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2357 case MONO_NATIVE_LPWSTR:
2359 * mono_string_builder_to_utf16 does not allocate a
2360 * new buffer, so no need to free it.
2363 return MONO_MARSHAL_CONV_LPWSTR_SB;
2364 case MONO_NATIVE_LPSTR:
2365 return MONO_MARSHAL_CONV_LPSTR_SB;
2367 case MONO_NATIVE_LPTSTR:
2368 return MONO_MARSHAL_CONV_LPTSTR_SB;
2371 return (MonoMarshalConv)-1;
2376 * Return whenever a field of a native structure or an array member needs to
2380 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2382 MonoMarshalNative encoding;
2385 case MONO_TYPE_VALUETYPE:
2386 /* FIXME: Optimize this */
2388 case MONO_TYPE_OBJECT:
2389 case MONO_TYPE_CLASS:
2390 if (t->data.klass == mono_defaults.stringbuilder_class) {
2392 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2396 case MONO_TYPE_STRING:
2397 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2398 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2405 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2408 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2411 mono_marshal_lock ();
2414 g_hash_table_new (hash_func, equal_func);
2415 mono_memory_barrier ();
2418 mono_marshal_unlock ();
2424 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2426 return get_cache (var, hash_func, equal_func);
2430 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2434 mono_marshal_lock ();
2435 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2436 mono_marshal_unlock ();
2443 * Create a MonoMethod from MB, set INFO as wrapper info.
2446 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2447 int max_stack, WrapperInfo *info)
2451 res = mono_mb_create_method (mb, sig, max_stack);
2453 mono_marshal_set_wrapper_info (res, info);
2457 /* Create the method from the builder and place it in the cache */
2459 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2460 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2461 int max_stack, WrapperInfo *info, gboolean *out_found)
2468 mono_marshal_lock ();
2469 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2470 mono_marshal_unlock ();
2473 newm = mono_mb_create_method (mb, sig, max_stack);
2474 mono_marshal_lock ();
2475 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2478 g_hash_table_insert (cache, key, res);
2479 mono_marshal_set_wrapper_info (res, info);
2480 mono_marshal_unlock ();
2484 mono_marshal_unlock ();
2485 mono_free_method (newm);
2493 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2494 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2497 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2501 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2504 int wrapper_type = wrapper->wrapper_type;
2507 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2510 info = mono_marshal_get_wrapper_info (wrapper);
2512 switch (wrapper_type) {
2513 case MONO_WRAPPER_REMOTING_INVOKE:
2514 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2515 case MONO_WRAPPER_XDOMAIN_INVOKE:
2516 m = info->d.remoting.method;
2517 if (wrapper->is_inflated) {
2521 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2522 * contains an uninflated method.
2524 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2525 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2529 case MONO_WRAPPER_SYNCHRONIZED:
2530 m = info->d.synchronized.method;
2531 if (wrapper->is_inflated) {
2534 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2535 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2539 case MONO_WRAPPER_UNBOX:
2540 return info->d.unbox.method;
2541 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2542 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2543 return info->d.managed_to_native.method;
2546 case MONO_WRAPPER_RUNTIME_INVOKE:
2547 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2548 return info->d.runtime_invoke.method;
2557 * mono_marshal_get_wrapper_info:
2559 * Retrieve the WrapperInfo structure associated with WRAPPER.
2562 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2564 g_assert (wrapper->wrapper_type);
2566 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2570 * mono_marshal_set_wrapper_info:
2572 * Set the WrapperInfo structure associated with the wrapper
2573 * method METHOD to INFO.
2576 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2580 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2583 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2588 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2592 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2593 info->subtype = subtype;
2598 * get_wrapper_target_class:
2600 * Return the class where a wrapper method should be placed.
2603 get_wrapper_target_class (MonoImage *image)
2610 * - can't put all wrappers into an mscorlib class, because they reference
2611 * metadata (signature) so they should be put into the same image as the
2612 * method they wrap, so they are unloaded together.
2613 * - putting them into a class with a type initalizer could cause the
2614 * initializer to be executed which can be a problem if the wrappers are
2616 * - putting them into an inflated class can cause problems if the the
2617 * class is deleted because it references an image which is unloaded.
2618 * To avoid these problems, we put the wrappers into the <Module> class of
2621 if (image_is_dynamic (image)) {
2622 klass = ((MonoDynamicImage*)image)->wrappers_type;
2624 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2625 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2633 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2634 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2638 * check_generic_wrapper_cache:
2640 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2641 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2642 * generic method definition.
2645 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2648 MonoMethod *inst, *def;
2649 MonoGenericContext *ctx;
2651 g_assert (orig_method->is_inflated);
2652 ctx = mono_method_get_context (orig_method);
2655 * Look for the instance
2657 res = mono_marshal_find_in_cache (cache, key);
2662 * Look for the definition
2664 def = mono_marshal_find_in_cache (cache, def_key);
2667 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2668 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2670 mono_memory_barrier ();
2671 mono_marshal_lock ();
2672 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2674 g_hash_table_insert (cache, key, inst);
2677 mono_marshal_unlock ();
2684 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2687 MonoMethod *inst, *res;
2690 * We use the same cache for the generic definition and the instances.
2692 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2693 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2694 mono_memory_barrier ();
2695 mono_marshal_lock ();
2696 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2698 g_hash_table_insert (cache, key, inst);
2701 mono_marshal_unlock ();
2706 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2710 MonoMethod *inst, *def;
2713 * Look for the instance
2715 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2720 * Look for the definition
2722 def = mono_marshal_find_in_cache (cache, def_method->klass);
2724 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2725 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2728 mono_memory_barrier ();
2729 mono_marshal_lock ();
2730 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2732 g_hash_table_insert (cache, orig_method->klass, inst);
2735 mono_marshal_unlock ();
2742 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2745 MonoMethod *inst, *res;
2748 * We use the same cache for the generic definition and the instances.
2750 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2751 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2753 mono_memory_barrier ();
2754 mono_marshal_lock ();
2755 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2757 g_hash_table_insert (cache, orig_method->klass, inst);
2760 mono_marshal_unlock ();
2765 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2767 MonoMethodSignature *sig;
2768 MonoMethodBuilder *mb;
2773 MonoGenericContext *ctx = NULL;
2774 MonoMethod *orig_method = NULL;
2776 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2777 !strcmp (method->name, "BeginInvoke"));
2780 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2782 if (method->is_inflated) {
2783 orig_method = method;
2784 ctx = &((MonoMethodInflated*)method)->context;
2785 method = ((MonoMethodInflated*)method)->declaring;
2788 sig = mono_signature_no_pinvoke (method);
2794 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2795 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2799 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2800 (GHashFunc)mono_signature_hash,
2801 (GCompareFunc)mono_metadata_signature_equal);
2802 if ((res = mono_marshal_find_in_cache (cache, sig)))
2806 g_assert (sig->hasthis);
2808 name = mono_signature_to_name (sig, "begin_invoke");
2810 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2812 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2816 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2818 mono_mb_emit_ldarg (mb, 0);
2819 mono_mb_emit_ldloc (mb, params_var);
2820 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2821 mono_mb_emit_byte (mb, CEE_RET);
2826 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2827 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2829 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2837 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2840 MonoDomain *domain = mono_domain_get ();
2841 MonoAsyncResult *ares;
2842 MonoMethod *method = NULL;
2843 MonoMethodSignature *sig;
2844 MonoMethodMessage *msg;
2845 MonoObject *res, *exc;
2846 MonoArray *out_args;
2849 g_assert (delegate);
2851 if (!delegate->method_info) {
2852 g_assert (delegate->method);
2853 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2854 mono_error_raise_exception (&error); /* FIXME don't raise here */
2855 MONO_OBJECT_SETREF (delegate, method_info, rm);
2858 if (!delegate->method_info || !delegate->method_info->method)
2859 g_assert_not_reached ();
2861 klass = delegate->object.vtable->klass;
2863 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2864 g_assert (method != NULL);
2866 sig = mono_signature_no_pinvoke (method);
2868 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2870 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2872 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2876 if (ares->async_delegate != (MonoObject*)delegate) {
2877 mono_raise_exception (mono_get_exception_invalid_operation (
2878 "The IAsyncResult object provided does not match this delegate."));
2882 #ifndef DISABLE_REMOTING
2883 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2884 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2885 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2886 mono_error_raise_exception (&error); /* FIXME don't raise here */
2887 mono_message_init (domain, msg, delegate->method_info, NULL);
2888 msg->call_type = CallType_EndInvoke;
2889 MONO_OBJECT_SETREF (msg, async_result, ares);
2890 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2894 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2898 if (((MonoException*)exc)->stack_trace) {
2899 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2901 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2903 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2906 mono_raise_exception ((MonoException*)exc);
2909 mono_method_return_message_restore (method, params, out_args);
2916 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2918 MonoType *t = mono_type_get_underlying_type (return_type);
2920 if (return_type->byref)
2921 return_type = &mono_defaults.int_class->byval_arg;
2924 case MONO_TYPE_VOID:
2925 g_assert_not_reached ();
2928 case MONO_TYPE_STRING:
2929 case MONO_TYPE_CLASS:
2930 case MONO_TYPE_OBJECT:
2931 case MONO_TYPE_ARRAY:
2932 case MONO_TYPE_SZARRAY:
2936 case MONO_TYPE_BOOLEAN:
2939 case MONO_TYPE_CHAR:
2949 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2950 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2952 case MONO_TYPE_GENERICINST:
2953 if (!mono_type_generic_inst_is_valuetype (t))
2956 case MONO_TYPE_VALUETYPE: {
2957 MonoClass *klass = mono_class_from_mono_type (return_type);
2958 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2959 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2963 case MONO_TYPE_MVAR: {
2964 MonoClass *klass = mono_class_from_mono_type (return_type);
2965 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2969 g_warning ("type 0x%x not handled", return_type->type);
2970 g_assert_not_reached ();
2973 mono_mb_emit_byte (mb, CEE_RET);
2976 #endif /* DISABLE_JIT */
2979 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2981 MonoMethodSignature *sig;
2982 MonoMethodBuilder *mb;
2987 MonoGenericContext *ctx = NULL;
2988 MonoMethod *orig_method = NULL;
2990 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2991 !strcmp (method->name, "EndInvoke"));
2994 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2996 if (method->is_inflated) {
2997 orig_method = method;
2998 ctx = &((MonoMethodInflated*)method)->context;
2999 method = ((MonoMethodInflated*)method)->declaring;
3002 sig = mono_signature_no_pinvoke (method);
3008 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3009 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3013 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3014 (GHashFunc)mono_signature_hash,
3015 (GCompareFunc)mono_metadata_signature_equal);
3016 if ((res = mono_marshal_find_in_cache (cache, sig)))
3020 g_assert (sig->hasthis);
3022 name = mono_signature_to_name (sig, "end_invoke");
3024 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3026 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3030 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3032 mono_mb_emit_ldarg (mb, 0);
3033 mono_mb_emit_ldloc (mb, params_var);
3034 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3036 if (sig->ret->type == MONO_TYPE_VOID) {
3037 mono_mb_emit_byte (mb, CEE_POP);
3038 mono_mb_emit_byte (mb, CEE_RET);
3040 mono_mb_emit_restore_result (mb, sig->ret);
3045 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3046 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3048 res = mono_mb_create_and_cache (cache, sig,
3049 mb, sig, sig->param_count + 16);
3058 MonoMethodSignature *sig;
3060 } SignaturePointerPair;
3063 signature_pointer_pair_hash (gconstpointer data)
3065 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3067 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3071 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3073 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3074 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3078 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3080 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3082 return pair->pointer == user_data;
3086 free_signature_pointer_pair (SignaturePointerPair *pair)
3092 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3094 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3096 MonoMethodBuilder *mb;
3099 gpointer cache_key = NULL;
3100 SignaturePointerPair key;
3101 SignaturePointerPair *new_key;
3102 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3103 int pos0, pos1, pos2;
3105 MonoClass *target_class = NULL;
3106 gboolean closed_over_null = FALSE;
3107 MonoGenericContext *ctx = NULL;
3108 MonoGenericContainer *container = NULL;
3109 MonoMethod *orig_method = NULL;
3111 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3115 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3116 !strcmp (method->name, "Invoke"));
3118 invoke_sig = sig = mono_signature_no_pinvoke (method);
3121 * If the delegate target is null, and the target method is not static, a virtual
3122 * call is made to that method with the first delegate argument as this. This is
3123 * a non-documented .NET feature.
3126 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3127 if (target_method->is_inflated) {
3128 MonoType *target_type;
3130 g_assert (method->signature->hasthis);
3131 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3132 mono_method_get_context (method));
3133 target_class = mono_class_from_mono_type (target_type);
3135 target_class = target_method->klass;
3138 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3141 if (static_method_with_first_arg_bound) {
3142 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3143 g_assert (!callvirt);
3144 invoke_sig = mono_method_signature (target_method);
3148 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3150 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3151 orig_method = method;
3152 ctx = &((MonoMethodInflated*)method)->context;
3153 method = ((MonoMethodInflated*)method)->declaring;
3155 container = mono_method_get_generic_container (method);
3157 container = method->klass->generic_container;
3158 g_assert (container);
3160 invoke_sig = sig = mono_signature_no_pinvoke (method);
3167 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3168 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3171 cache_key = method->klass;
3172 } else if (static_method_with_first_arg_bound) {
3173 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3174 (GHashFunc)mono_signature_hash,
3175 (GCompareFunc)mono_metadata_signature_equal);
3177 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3179 res = mono_marshal_find_in_cache (cache, invoke_sig);
3182 cache_key = invoke_sig;
3183 } else if (callvirt) {
3184 GHashTable **cache_ptr;
3186 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3188 /* We need to cache the signature+method pair */
3189 mono_marshal_lock ();
3191 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3193 key.sig = invoke_sig;
3194 key.pointer = target_method;
3195 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3196 mono_marshal_unlock ();
3200 // Inflated methods should not be in this cache because it's not stored on the imageset.
3201 g_assert (!method->is_inflated);
3202 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3203 (GHashFunc)mono_signature_hash,
3204 (GCompareFunc)mono_metadata_signature_equal);
3205 res = mono_marshal_find_in_cache (cache, sig);
3211 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3212 static_sig->hasthis = 0;
3213 if (!static_method_with_first_arg_bound)
3214 invoke_sig = static_sig;
3216 if (static_method_with_first_arg_bound)
3217 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3218 else if (closed_over_null)
3219 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3221 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3223 name = mono_signature_to_name (invoke_sig, "invoke");
3225 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3227 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3231 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3233 /* allocate local 0 (object) */
3234 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3235 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3236 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3237 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3238 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3241 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3243 g_assert (sig->hasthis);
3246 * {type: sig->ret} res;
3247 * if (delegates == null) {
3248 * return this.<target> ( args .. );
3250 * int i = 0, len = this.delegates.Length;
3252 * res = this.delegates [i].Invoke ( args .. );
3253 * } while (++i < len);
3258 /* this wrapper can be used in unmanaged-managed transitions */
3259 emit_thread_interrupt_checkpoint (mb);
3261 /* delegates = this.delegates */
3262 mono_mb_emit_ldarg (mb, 0);
3263 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3264 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3265 mono_mb_emit_stloc (mb, local_delegates);
3268 /* if (delegates == null) */
3269 mono_mb_emit_ldloc (mb, local_delegates);
3270 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3272 /* return target.<target_method|method_ptr> ( args .. ); */
3274 /* target = d.target; */
3275 mono_mb_emit_ldarg (mb, 0);
3276 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3277 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3278 mono_mb_emit_stloc (mb, local_target);
3280 /*static methods with bound first arg can have null target and still be bound*/
3281 if (!static_method_with_first_arg_bound) {
3282 /* if target != null */
3283 mono_mb_emit_ldloc (mb, local_target);
3284 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3286 /* then call this->method_ptr nonstatic */
3289 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3291 mono_mb_emit_ldloc (mb, local_target);
3292 for (i = 0; i < sig->param_count; ++i)
3293 mono_mb_emit_ldarg (mb, i + 1);
3294 mono_mb_emit_ldarg (mb, 0);
3295 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3296 mono_mb_emit_byte (mb, CEE_LDIND_I);
3297 mono_mb_emit_ldarg (mb, 0);
3298 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3299 mono_mb_emit_byte (mb, CEE_LDIND_I);
3300 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3301 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3302 mono_mb_emit_byte (mb, CEE_RET);
3305 /* else [target == null] call this->method_ptr static */
3306 mono_mb_patch_branch (mb, pos0);
3310 if (!closed_over_null) {
3311 if (target_class->valuetype) {
3312 mono_mb_emit_ldarg (mb, 1);
3313 for (i = 1; i < sig->param_count; ++i)
3314 mono_mb_emit_ldarg (mb, i + 1);
3315 mono_mb_emit_op (mb, CEE_CALL, target_method);
3317 mono_mb_emit_ldarg (mb, 1);
3318 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3319 for (i = 1; i < sig->param_count; ++i)
3320 mono_mb_emit_ldarg (mb, i + 1);
3321 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3324 mono_mb_emit_byte (mb, CEE_LDNULL);
3325 for (i = 0; i < sig->param_count; ++i)
3326 mono_mb_emit_ldarg (mb, i + 1);
3327 mono_mb_emit_op (mb, CEE_CALL, target_method);
3330 if (static_method_with_first_arg_bound) {
3331 mono_mb_emit_ldloc (mb, local_target);
3332 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3333 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3335 for (i = 0; i < sig->param_count; ++i)
3336 mono_mb_emit_ldarg (mb, i + 1);
3337 mono_mb_emit_ldarg (mb, 0);
3338 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3339 mono_mb_emit_byte (mb, CEE_LDIND_I);
3340 mono_mb_emit_ldarg (mb, 0);
3341 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3342 mono_mb_emit_byte (mb, CEE_LDIND_I);
3343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3344 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3347 mono_mb_emit_byte (mb, CEE_RET);
3349 /* else [delegates != null] */
3350 mono_mb_patch_branch (mb, pos2);
3352 /* len = delegates.Length; */
3353 mono_mb_emit_ldloc (mb, local_delegates);
3354 mono_mb_emit_byte (mb, CEE_LDLEN);
3355 mono_mb_emit_byte (mb, CEE_CONV_I4);
3356 mono_mb_emit_stloc (mb, local_len);
3359 mono_mb_emit_icon (mb, 0);
3360 mono_mb_emit_stloc (mb, local_i);
3362 pos1 = mono_mb_get_label (mb);
3364 /* d = delegates [i]; */
3365 mono_mb_emit_ldloc (mb, local_delegates);
3366 mono_mb_emit_ldloc (mb, local_i);
3367 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3368 mono_mb_emit_stloc (mb, local_d);
3370 /* res = d.Invoke ( args .. ); */
3371 mono_mb_emit_ldloc (mb, local_d);
3372 for (i = 0; i < sig->param_count; i++)
3373 mono_mb_emit_ldarg (mb, i + 1);
3375 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3378 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3379 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3382 mono_mb_emit_stloc (mb, local_res);
3385 mono_mb_emit_add_to_local (mb, local_i, 1);
3388 mono_mb_emit_ldloc (mb, local_i);
3389 mono_mb_emit_ldloc (mb, local_len);
3390 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3394 mono_mb_emit_ldloc (mb, local_res);
3395 mono_mb_emit_byte (mb, CEE_RET);
3397 mb->skip_visibility = 1;
3398 #endif /* DISABLE_JIT */
3400 info = mono_wrapper_info_create (mb, subtype);
3405 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3406 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3407 } else if (callvirt) {
3408 new_key = g_new0 (SignaturePointerPair, 1);
3411 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3415 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3419 /* mono_method_print_code (res); */
3425 * the returned method invokes all methods in a multicast delegate.
3428 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3430 gboolean callvirt = FALSE;
3431 gboolean static_method_with_first_arg_bound = FALSE;
3432 MonoMethod *target_method = NULL;
3433 MonoMethodSignature *sig;
3435 sig = mono_signature_no_pinvoke (method);
3437 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3439 target_method = del->method;
3442 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3443 static_method_with_first_arg_bound = TRUE;
3444 target_method = del->method;
3447 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3451 MonoMethodSignature *ctor_sig;
3452 MonoMethodSignature *sig;
3455 /* protected by the marshal lock, contains CtorSigPair pointers */
3456 static GSList *strsig_list = NULL;
3458 static MonoMethodSignature *
3459 lookup_string_ctor_signature (MonoMethodSignature *sig)
3461 MonoMethodSignature *callsig;
3465 mono_marshal_lock ();
3467 for (item = strsig_list; item; item = item->next) {
3468 cs = (CtorSigPair *)item->data;
3469 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3470 * because it is lock-free.
3472 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3477 mono_marshal_unlock ();
3481 static MonoMethodSignature *
3482 add_string_ctor_signature (MonoMethod *method)
3484 MonoMethodSignature *callsig;
3487 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3488 callsig->ret = &mono_defaults.string_class->byval_arg;
3489 cs = g_new (CtorSigPair, 1);
3491 cs->ctor_sig = mono_method_signature (method);
3493 mono_marshal_lock ();
3494 strsig_list = g_slist_prepend (strsig_list, cs);
3495 mono_marshal_unlock ();
3500 * mono_marshal_get_string_ctor_signature:
3502 * Return the modified signature used by string ctors (they return the newly created
3505 MonoMethodSignature*
3506 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3508 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3510 sig = add_string_ctor_signature (method);
3516 get_runtime_invoke_type (MonoType *t, gboolean ret)
3519 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3521 /* Can't share this with 'I' as that needs another indirection */
3522 return &mono_defaults.int_class->this_arg;
3525 if (MONO_TYPE_IS_REFERENCE (t))
3526 return &mono_defaults.object_class->byval_arg;
3529 /* The result needs to be boxed */
3534 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3537 return &mono_defaults.sbyte_class->byval_arg;
3539 return &mono_defaults.int16_class->byval_arg;
3541 return &mono_defaults.int32_class->byval_arg;
3544 return &mono_defaults.int64_class->byval_arg;
3545 case MONO_TYPE_BOOLEAN:
3546 return &mono_defaults.byte_class->byval_arg;
3547 case MONO_TYPE_CHAR:
3548 return &mono_defaults.uint16_class->byval_arg;
3550 return &mono_defaults.int_class->byval_arg;
3551 case MONO_TYPE_VALUETYPE:
3552 if (t->data.klass->enumtype) {
3553 t = mono_class_enum_basetype (t->data.klass);
3563 * mono_marshal_get_runtime_invoke_sig:
3565 * Return a common signature used for sharing runtime invoke wrappers.
3567 static MonoMethodSignature*
3568 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3570 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3573 res->generic_param_count = 0;
3574 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3575 for (i = 0; i < res->param_count; ++i)
3576 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3582 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3584 /* Can't share wrappers which return a vtype since it needs to be boxed */
3585 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))
3588 return mono_metadata_signature_equal (sig1, sig2);
3596 * Emit the call to the wrapper method from a runtime invoke wrapper.
3599 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3600 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3602 gboolean virtual_, gboolean need_direct_wrapper)
3604 static MonoString *string_dummy = NULL;
3606 int *tmp_nullable_locals;
3607 gboolean void_ret = FALSE;
3608 gboolean string_ctor = method && method->string_ctor;
3610 /* to make it work with our special string constructors */
3611 if (!string_dummy) {
3612 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3613 string_dummy = mono_string_new_wrapper ("dummy");
3617 g_assert (sig->hasthis);
3618 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3623 if (mono_gc_is_moving ()) {
3624 mono_mb_emit_ptr (mb, &string_dummy);
3625 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3627 mono_mb_emit_ptr (mb, string_dummy);
3630 mono_mb_emit_ldarg (mb, 0);
3634 tmp_nullable_locals = g_new0 (int, sig->param_count);
3636 for (i = 0; i < sig->param_count; i++) {
3637 MonoType *t = sig->params [i];
3640 mono_mb_emit_ldarg (mb, 1);
3642 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3643 mono_mb_emit_byte (mb, CEE_ADD);
3647 mono_mb_emit_byte (mb, CEE_LDIND_I);
3648 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3649 * So to make this work we unbox it to a local variablee and push a reference to that.
3651 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3652 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3654 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3655 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3656 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3661 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3662 type = sig->params [i]->type;
3666 case MONO_TYPE_BOOLEAN:
3670 case MONO_TYPE_CHAR:
3679 mono_mb_emit_byte (mb, CEE_LDIND_I);
3680 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3682 case MONO_TYPE_STRING:
3683 case MONO_TYPE_CLASS:
3684 case MONO_TYPE_ARRAY:
3686 case MONO_TYPE_SZARRAY:
3687 case MONO_TYPE_OBJECT:
3688 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3690 case MONO_TYPE_GENERICINST:
3691 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3692 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3697 case MONO_TYPE_VALUETYPE:
3698 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3699 type = mono_class_enum_basetype (t->data.klass)->type;
3702 mono_mb_emit_byte (mb, CEE_LDIND_I);
3703 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3704 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3705 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3706 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3708 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3712 g_assert_not_reached ();
3717 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3718 } else if (need_direct_wrapper) {
3719 mono_mb_emit_op (mb, CEE_CALL, method);
3721 mono_mb_emit_ldarg (mb, 3);
3722 mono_mb_emit_calli (mb, callsig);
3725 if (sig->ret->byref) {
3727 g_assert_not_reached ();
3730 switch (sig->ret->type) {
3731 case MONO_TYPE_VOID:
3735 case MONO_TYPE_BOOLEAN:
3736 case MONO_TYPE_CHAR:
3749 case MONO_TYPE_VALUETYPE:
3750 case MONO_TYPE_TYPEDBYREF:
3751 case MONO_TYPE_GENERICINST:
3752 /* box value types */
3753 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3755 case MONO_TYPE_STRING:
3756 case MONO_TYPE_CLASS:
3757 case MONO_TYPE_ARRAY:
3758 case MONO_TYPE_SZARRAY:
3759 case MONO_TYPE_OBJECT:
3763 /* The result is an IntPtr */
3764 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3767 g_assert_not_reached ();
3771 mono_mb_emit_stloc (mb, loc_res);
3773 /* Convert back nullable-byref arguments */
3774 for (i = 0; i < sig->param_count; i++) {
3775 MonoType *t = sig->params [i];
3778 * Box the result and put it back into the array, the caller will have
3779 * to obtain it from there.
3781 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3782 mono_mb_emit_ldarg (mb, 1);
3783 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3784 mono_mb_emit_byte (mb, CEE_ADD);
3786 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3787 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3789 mono_mb_emit_byte (mb, CEE_STIND_REF);
3793 g_free (tmp_nullable_locals);
3797 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3798 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3799 gboolean virtual_, gboolean need_direct_wrapper)
3802 MonoExceptionClause *clause;
3803 int loc_res, loc_exc;
3805 /* The wrapper looks like this:
3811 * } catch (Exception e) {
3819 /* allocate local 0 (object) tmp */
3820 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3821 /* allocate local 1 (object) exc */
3822 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3824 /* *exc is assumed to be initialized to NULL by the caller */
3826 mono_mb_emit_byte (mb, CEE_LDARG_2);
3827 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3832 labels [1] = mono_mb_get_label (mb);
3833 emit_thread_force_interrupt_checkpoint (mb);
3834 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3836 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3838 /* Add a try clause around the call */
3839 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3840 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3841 clause->data.catch_class = mono_defaults.exception_class;
3842 clause->try_offset = labels [1];
3843 clause->try_len = mono_mb_get_label (mb) - labels [1];
3845 clause->handler_offset = mono_mb_get_label (mb);
3848 mono_mb_emit_stloc (mb, loc_exc);
3849 mono_mb_emit_byte (mb, CEE_LDARG_2);
3850 mono_mb_emit_ldloc (mb, loc_exc);
3851 mono_mb_emit_byte (mb, CEE_STIND_REF);
3853 mono_mb_emit_branch (mb, CEE_LEAVE);
3855 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3857 mono_mb_set_clauses (mb, 1, clause);
3859 mono_mb_patch_branch (mb, labels [2]);
3860 mono_mb_emit_ldloc (mb, loc_res);
3861 mono_mb_emit_byte (mb, CEE_RET);
3866 mono_mb_patch_branch (mb, labels [0]);
3867 emit_thread_force_interrupt_checkpoint (mb);
3868 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3870 mono_mb_emit_ldloc (mb, 0);
3871 mono_mb_emit_byte (mb, CEE_RET);
3876 * generates IL code for the runtime invoke function
3877 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3879 * we also catch exceptions if exc != null
3880 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3881 * it means that the compiled code for METHOD does not have to be looked up
3882 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3883 * its METHOD argument.
3886 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3888 MonoMethodSignature *sig, *csig, *callsig;
3889 MonoMethodBuilder *mb;
3890 GHashTable *cache = NULL;
3891 MonoClass *target_klass;
3892 MonoMethod *res = NULL;
3893 static MonoMethodSignature *cctor_signature = NULL;
3894 static MonoMethodSignature *finalize_signature = NULL;
3896 const char *param_names [16];
3897 gboolean need_direct_wrapper = FALSE;
3902 if (!cctor_signature) {
3903 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3904 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3906 if (!finalize_signature) {
3907 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3908 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3909 finalize_signature->hasthis = 1;
3913 need_direct_wrapper = TRUE;
3916 * Use a separate cache indexed by methods to speed things up and to avoid the
3917 * boundless mempool growth caused by the signature_dup stuff below.
3920 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3922 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3924 res = mono_marshal_find_in_cache (cache, method);
3928 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3929 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3931 * Array Get/Set/Address methods. The JIT implements them using inline code
3932 * so we need to create an invoke wrapper which calls the method directly.
3934 need_direct_wrapper = TRUE;
3937 if (method->string_ctor) {
3938 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3940 callsig = add_string_ctor_signature (method);
3941 /* Can't share this as we push a string as this */
3942 need_direct_wrapper = TRUE;
3944 if (method_is_dynamic (method))
3945 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3947 callsig = mono_method_signature (method);
3950 sig = mono_method_signature (method);
3952 target_klass = get_wrapper_target_class (method->klass->image);
3954 /* Try to share wrappers for non-corlib methods with simple signatures */
3955 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3956 callsig = cctor_signature;
3957 target_klass = mono_defaults.object_class;
3958 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3959 callsig = finalize_signature;
3960 target_klass = mono_defaults.object_class;
3963 if (need_direct_wrapper) {
3964 /* Already searched at the start */
3966 MonoMethodSignature *tmp_sig;
3968 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3969 GHashTable **cache_table = NULL;
3971 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3972 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3974 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3976 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3977 (GCompareFunc)runtime_invoke_signature_equal);
3979 /* from mono_marshal_find_in_cache */
3980 mono_marshal_lock ();
3981 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3982 mono_marshal_unlock ();
3989 /* Make a copy of the signature from the image mempool */
3991 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3995 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3997 csig->ret = &mono_defaults.object_class->byval_arg;
3998 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3999 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4001 csig->params [0] = &mono_defaults.object_class->byval_arg;
4002 csig->params [1] = &mono_defaults.int_class->byval_arg;
4003 csig->params [2] = &mono_defaults.int_class->byval_arg;
4004 csig->params [3] = &mono_defaults.int_class->byval_arg;
4007 /* This is called from runtime code so it has to be cdecl */
4008 csig->call_convention = MONO_CALL_C;
4011 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4012 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4016 param_names [0] = "this";
4017 param_names [1] = "params";
4018 param_names [2] = "exc";
4019 param_names [3] = "method";
4020 mono_mb_set_param_names (mb, param_names);
4022 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4025 if (need_direct_wrapper) {
4027 mb->skip_visibility = 1;
4029 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4030 info->d.runtime_invoke.method = method;
4031 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4033 /* taken from mono_mb_create_and_cache */
4034 mono_marshal_lock ();
4035 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4036 mono_marshal_unlock ();
4038 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4039 info->d.runtime_invoke.sig = callsig;
4041 /* Somebody may have created it before us */
4044 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4046 mono_marshal_lock ();
4047 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4049 GHashTable *direct_cache;
4051 g_hash_table_insert (cache, callsig, res);
4052 /* Can't insert it into wrapper_hash since the key is a signature */
4053 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4055 g_hash_table_insert (direct_cache, method, res);
4057 mono_free_method (newm);
4059 mono_marshal_unlock ();
4062 /* end mono_mb_create_and_cache */
4071 * mono_marshal_get_runtime_invoke_dynamic:
4073 * Return a method which can be used to invoke managed methods from native code
4075 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4076 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4077 * ARGS should point to an architecture specific structure containing
4078 * the arguments and space for the return value.
4079 * The other arguments are the same as for runtime_invoke (), except that
4080 * ARGS should contain the this argument too.
4081 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4082 * is only one copy of it, which is useful in full-aot.
4083 * The wrapper info for the wrapper is a WrapperInfo structure.
4086 mono_marshal_get_runtime_invoke_dynamic (void)
4088 static MonoMethod *method;
4089 MonoMethodSignature *csig;
4090 MonoExceptionClause *clause;
4091 MonoMethodBuilder *mb;
4099 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4101 csig->ret = &mono_defaults.void_class->byval_arg;
4102 csig->params [0] = &mono_defaults.int_class->byval_arg;
4103 csig->params [1] = &mono_defaults.int_class->byval_arg;
4104 csig->params [2] = &mono_defaults.int_class->byval_arg;
4105 csig->params [3] = &mono_defaults.int_class->byval_arg;
4107 name = g_strdup ("runtime_invoke_dynamic");
4108 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4112 /* allocate local 0 (object) tmp */
4113 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4114 /* allocate local 1 (object) exc */
4115 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4117 /* cond set *exc to null */
4118 mono_mb_emit_byte (mb, CEE_LDARG_1);
4119 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4120 mono_mb_emit_byte (mb, 3);
4121 mono_mb_emit_byte (mb, CEE_LDARG_1);
4122 mono_mb_emit_byte (mb, CEE_LDNULL);
4123 mono_mb_emit_byte (mb, CEE_STIND_REF);
4125 emit_thread_force_interrupt_checkpoint (mb);
4127 mono_mb_emit_byte (mb, CEE_LDARG_0);
4128 mono_mb_emit_byte (mb, CEE_LDARG_2);
4129 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4130 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4132 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4134 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4135 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4136 clause->try_len = mono_mb_get_label (mb);
4139 clause->data.filter_offset = mono_mb_get_label (mb);
4141 mono_mb_emit_byte (mb, CEE_POP);
4142 mono_mb_emit_byte (mb, CEE_LDARG_1);
4143 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4144 mono_mb_emit_byte (mb, CEE_PREFIX1);
4145 mono_mb_emit_byte (mb, CEE_CGT_UN);
4146 mono_mb_emit_byte (mb, CEE_PREFIX1);
4147 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4149 clause->handler_offset = mono_mb_get_label (mb);
4152 /* store exception */
4153 mono_mb_emit_stloc (mb, 1);
4155 mono_mb_emit_byte (mb, CEE_LDARG_1);
4156 mono_mb_emit_ldloc (mb, 1);
4157 mono_mb_emit_byte (mb, CEE_STIND_REF);
4159 mono_mb_emit_byte (mb, CEE_LDNULL);
4160 mono_mb_emit_stloc (mb, 0);
4162 /* Check for the abort exception */
4163 mono_mb_emit_ldloc (mb, 1);
4164 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4165 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4167 /* Delay the abort exception */
4168 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4170 mono_mb_patch_short_branch (mb, posna);
4171 mono_mb_emit_branch (mb, CEE_LEAVE);
4173 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4175 mono_mb_set_clauses (mb, 1, clause);
4178 mono_mb_patch_branch (mb, pos);
4179 //mono_mb_emit_ldloc (mb, 0);
4180 mono_mb_emit_byte (mb, CEE_RET);
4181 #endif /* DISABLE_JIT */
4183 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4185 mono_marshal_lock ();
4186 /* double-checked locking */
4188 method = mono_mb_create (mb, csig, 16, info);
4190 mono_marshal_unlock ();
4198 * mono_marshal_get_runtime_invoke_for_sig:
4200 * Return a runtime invoke wrapper for a given signature.
4203 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4205 MonoMethodSignature *csig, *callsig;
4206 MonoMethodBuilder *mb;
4208 GHashTable *cache = NULL;
4209 GHashTable **cache_table = NULL;
4210 MonoMethod *res = NULL;
4212 const char *param_names [16];
4215 /* A simplified version of mono_marshal_get_runtime_invoke */
4217 image = mono_defaults.corlib;
4219 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4221 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4223 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4224 (GCompareFunc)runtime_invoke_signature_equal);
4226 /* from mono_marshal_find_in_cache */
4227 mono_marshal_lock ();
4228 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4229 mono_marshal_unlock ();
4236 /* Make a copy of the signature from the image mempool */
4237 callsig = mono_metadata_signature_dup_full (image, callsig);
4239 csig = mono_metadata_signature_alloc (image, 4);
4240 csig->ret = &mono_defaults.object_class->byval_arg;
4241 csig->params [0] = &mono_defaults.object_class->byval_arg;
4242 csig->params [1] = &mono_defaults.int_class->byval_arg;
4243 csig->params [2] = &mono_defaults.int_class->byval_arg;
4244 csig->params [3] = &mono_defaults.int_class->byval_arg;
4247 /* This is called from runtime code so it has to be cdecl */
4248 csig->call_convention = MONO_CALL_C;
4251 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4252 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4256 param_names [0] = "this";
4257 param_names [1] = "params";
4258 param_names [2] = "exc";
4259 param_names [3] = "method";
4260 mono_mb_set_param_names (mb, param_names);
4262 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4265 /* taken from mono_mb_create_and_cache */
4266 mono_marshal_lock ();
4267 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4268 mono_marshal_unlock ();
4270 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4271 info->d.runtime_invoke.sig = callsig;
4273 /* Somebody may have created it before us */
4276 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4278 mono_marshal_lock ();
4279 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4282 g_hash_table_insert (cache, callsig, res);
4284 mono_free_method (newm);
4286 mono_marshal_unlock ();
4289 /* end mono_mb_create_and_cache */
4298 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4300 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4301 klass->name_space, klass->name);
4303 mono_mb_emit_exception_marshal_directive (mb, msg);
4308 * generates IL code for the icall wrapper (the generated method
4309 * calls the unmanaged code in func)
4310 * The wrapper info for the wrapper is a WrapperInfo structure.
4313 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4315 MonoMethodSignature *csig, *csig2;
4316 MonoMethodBuilder *mb;
4321 g_assert (sig->pinvoke);
4323 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4325 mb->method->save_lmf = 1;
4327 /* Add an explicit this argument */
4329 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4331 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4335 mono_mb_emit_byte (mb, CEE_LDARG_0);
4337 for (i = 0; i < sig->param_count; i++)
4338 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4340 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4341 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4342 mono_mb_emit_calli (mb, csig2);
4343 if (check_exceptions)
4344 emit_thread_interrupt_checkpoint (mb);
4345 mono_mb_emit_byte (mb, CEE_RET);
4348 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4350 if (csig->call_convention == MONO_CALL_VARARG)
4351 csig->call_convention = 0;
4353 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4354 info->d.icall.func = (gpointer)func;
4355 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4362 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4363 MonoMarshalSpec *spec,
4364 int conv_arg, MonoType **conv_arg_type,
4365 MarshalAction action)
4368 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4369 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4374 static MonoClass *ICustomMarshaler = NULL;
4375 static MonoMethod *cleanup_native, *cleanup_managed;
4376 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4377 MonoMethod *get_instance = NULL;
4378 MonoMethodBuilder *mb = m->mb;
4379 char *exception_msg = NULL;
4383 if (!ICustomMarshaler) {
4384 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4386 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4387 goto handle_exception;
4390 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4391 g_assert (cleanup_native);
4392 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4393 g_assert (cleanup_managed);
4394 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4395 g_assert (marshal_managed_to_native);
4396 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4397 g_assert (marshal_native_to_managed);
4399 mono_memory_barrier ();
4400 ICustomMarshaler = klass;
4403 if (spec->data.custom_data.image)
4404 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4406 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4407 g_assert (mtype != NULL);
4408 mklass = mono_class_from_mono_type (mtype);
4409 g_assert (mklass != NULL);
4411 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4412 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4414 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4416 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4417 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4418 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4419 (get_sig->params [0]->type != MONO_TYPE_STRING))
4420 get_instance = NULL;
4424 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);
4427 /* Throw exception and emit compensation code if neccesary */
4428 if (exception_msg) {
4430 case MARSHAL_ACTION_CONV_IN:
4431 case MARSHAL_ACTION_CONV_RESULT:
4432 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4433 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4434 mono_mb_emit_byte (mb, CEE_POP);
4436 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4437 g_free (exception_msg);
4440 case MARSHAL_ACTION_PUSH:
4441 mono_mb_emit_byte (mb, CEE_LDNULL);
4449 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4450 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4453 case MARSHAL_ACTION_CONV_IN:
4455 case MONO_TYPE_CLASS:
4456 case MONO_TYPE_OBJECT:
4457 case MONO_TYPE_STRING:
4458 case MONO_TYPE_ARRAY:
4459 case MONO_TYPE_SZARRAY:
4460 case MONO_TYPE_VALUETYPE:
4464 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4465 g_assert_not_reached ();
4469 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4471 mono_mb_emit_byte (mb, CEE_LDNULL);
4472 mono_mb_emit_stloc (mb, conv_arg);
4474 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4477 /* Minic MS.NET behavior */
4478 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4481 /* Check for null */
4482 mono_mb_emit_ldarg (mb, argnum);
4484 mono_mb_emit_byte (mb, CEE_LDIND_I);
4485 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4487 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4489 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4491 mono_mb_emit_ldarg (mb, argnum);
4493 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4495 if (t->type == MONO_TYPE_VALUETYPE) {
4497 * Since we can't determine the type of the argument, we
4498 * will assume the unmanaged function takes a pointer.
4500 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4502 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4505 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4506 mono_mb_emit_stloc (mb, conv_arg);
4508 mono_mb_patch_branch (mb, pos2);
4511 case MARSHAL_ACTION_CONV_OUT:
4512 /* Check for null */
4513 mono_mb_emit_ldloc (mb, conv_arg);
4514 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4517 mono_mb_emit_ldarg (mb, argnum);
4519 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4521 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4523 mono_mb_emit_ldloc (mb, conv_arg);
4524 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4525 mono_mb_emit_byte (mb, CEE_STIND_REF);
4526 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4527 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4529 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4531 mono_mb_emit_ldloc (mb, conv_arg);
4532 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4534 /* We have nowhere to store the result */
4535 mono_mb_emit_byte (mb, CEE_POP);
4538 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4540 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4542 mono_mb_emit_ldloc (mb, conv_arg);
4544 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4546 mono_mb_patch_branch (mb, pos2);
4549 case MARSHAL_ACTION_PUSH:
4551 mono_mb_emit_ldloc_addr (mb, conv_arg);
4553 mono_mb_emit_ldloc (mb, conv_arg);
4556 case MARSHAL_ACTION_CONV_RESULT:
4557 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4559 mono_mb_emit_stloc (mb, 3);
4561 mono_mb_emit_ldloc (mb, 3);
4562 mono_mb_emit_stloc (mb, loc1);
4564 /* Check for null */
4565 mono_mb_emit_ldloc (mb, 3);
4566 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4568 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4570 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4571 mono_mb_emit_byte (mb, CEE_DUP);
4573 mono_mb_emit_ldloc (mb, 3);
4574 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4575 mono_mb_emit_stloc (mb, 3);
4577 mono_mb_emit_ldloc (mb, loc1);
4578 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4580 mono_mb_patch_branch (mb, pos2);
4583 case MARSHAL_ACTION_MANAGED_CONV_IN:
4584 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4586 mono_mb_emit_byte (mb, CEE_LDNULL);
4587 mono_mb_emit_stloc (mb, conv_arg);
4589 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4592 /* Check for null */
4593 mono_mb_emit_ldarg (mb, argnum);
4595 mono_mb_emit_byte (mb, CEE_LDIND_I);
4596 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4598 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4599 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4601 mono_mb_emit_ldarg (mb, argnum);
4603 mono_mb_emit_byte (mb, CEE_LDIND_I);
4605 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4606 mono_mb_emit_stloc (mb, conv_arg);
4608 mono_mb_patch_branch (mb, pos2);
4611 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4612 g_assert (!t->byref);
4614 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4616 mono_mb_emit_stloc (mb, 3);
4618 mono_mb_emit_ldloc (mb, 3);
4619 mono_mb_emit_stloc (mb, loc1);
4621 /* Check for null */
4622 mono_mb_emit_ldloc (mb, 3);
4623 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4625 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4626 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4627 mono_mb_emit_byte (mb, CEE_DUP);
4629 mono_mb_emit_ldloc (mb, 3);
4630 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4631 mono_mb_emit_stloc (mb, 3);
4633 mono_mb_emit_ldloc (mb, loc1);
4634 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4636 mono_mb_patch_branch (mb, pos2);
4639 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4641 /* Check for null */
4642 mono_mb_emit_ldloc (mb, conv_arg);
4643 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4646 mono_mb_emit_ldarg (mb, argnum);
4648 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4650 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4652 mono_mb_emit_ldloc (mb, conv_arg);
4653 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4654 mono_mb_emit_byte (mb, CEE_STIND_I);
4657 /* Call CleanUpManagedData */
4658 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_ldloc (mb, conv_arg);
4663 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4665 mono_mb_patch_branch (mb, pos2);
4669 g_assert_not_reached ();
4677 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4678 MonoMarshalSpec *spec,
4679 int conv_arg, MonoType **conv_arg_type,
4680 MarshalAction action)
4683 MonoMethodBuilder *mb = m->mb;
4686 case MARSHAL_ACTION_CONV_IN: {
4687 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4689 g_assert (t->type == MONO_TYPE_OBJECT);
4690 g_assert (!t->byref);
4692 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4693 mono_mb_emit_ldarg (mb, argnum);
4694 mono_mb_emit_icon (mb, encoding);
4695 mono_mb_emit_icon (mb, t->attrs);
4696 mono_mb_emit_icall (mb, mono_marshal_asany);
4697 mono_mb_emit_stloc (mb, conv_arg);
4701 case MARSHAL_ACTION_PUSH:
4702 mono_mb_emit_ldloc (mb, conv_arg);
4705 case MARSHAL_ACTION_CONV_OUT: {
4706 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4708 mono_mb_emit_ldarg (mb, argnum);
4709 mono_mb_emit_ldloc (mb, conv_arg);
4710 mono_mb_emit_icon (mb, encoding);
4711 mono_mb_emit_icon (mb, t->attrs);
4712 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4717 g_assert_not_reached ();
4724 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4725 MonoMarshalSpec *spec,
4726 int conv_arg, MonoType **conv_arg_type,
4727 MarshalAction action)
4730 MonoMethodBuilder *mb = m->mb;
4731 MonoClass *klass, *date_time_class;
4734 klass = mono_class_from_mono_type (t);
4736 date_time_class = mono_class_get_date_time_class ();
4739 case MARSHAL_ACTION_CONV_IN:
4740 if (klass == date_time_class) {
4741 /* Convert it to an OLE DATE type */
4742 static MonoMethod *to_oadate;
4745 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4746 g_assert (to_oadate);
4748 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4751 mono_mb_emit_ldarg (mb, argnum);
4752 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4755 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4757 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4759 mono_mb_emit_ldarg_addr (mb, argnum);
4760 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4761 mono_mb_emit_stloc (mb, conv_arg);
4765 mono_mb_patch_branch (mb, pos);
4769 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4770 klass->blittable || klass->enumtype)
4773 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4775 /* store the address of the source into local variable 0 */
4777 mono_mb_emit_ldarg (mb, argnum);
4779 mono_mb_emit_ldarg_addr (mb, argnum);
4781 mono_mb_emit_stloc (mb, 0);
4783 /* allocate space for the native struct and
4784 * store the address into local variable 1 (dest) */
4785 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4786 mono_mb_emit_byte (mb, CEE_PREFIX1);
4787 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4788 mono_mb_emit_stloc (mb, conv_arg);
4791 mono_mb_emit_ldloc (mb, 0);
4792 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4795 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4797 mono_mb_emit_ldloc (mb, conv_arg);
4798 mono_mb_emit_stloc (mb, 1);
4800 /* emit valuetype conversion code */
4801 emit_struct_conv (mb, klass, FALSE);
4805 mono_mb_patch_branch (mb, pos);
4808 case MARSHAL_ACTION_PUSH:
4809 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4811 g_assert (!t->byref);
4813 /* Have to change the signature since the vtype is passed byref */
4814 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4816 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4817 klass->blittable || klass->enumtype)
4818 mono_mb_emit_ldarg_addr (mb, argnum);
4820 mono_mb_emit_ldloc (mb, conv_arg);
4824 if (klass == date_time_class) {
4826 mono_mb_emit_ldloc_addr (mb, conv_arg);
4828 mono_mb_emit_ldloc (mb, conv_arg);
4832 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4833 klass->blittable || klass->enumtype) {
4834 mono_mb_emit_ldarg (mb, argnum);
4837 mono_mb_emit_ldloc (mb, conv_arg);
4839 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4840 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4844 case MARSHAL_ACTION_CONV_OUT:
4845 if (klass == date_time_class) {
4846 /* Convert from an OLE DATE type */
4847 static MonoMethod *from_oadate;
4852 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4854 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4855 g_assert (from_oadate);
4857 mono_mb_emit_ldarg (mb, argnum);
4858 mono_mb_emit_ldloc (mb, conv_arg);
4859 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4860 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4865 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4866 klass->blittable || klass->enumtype)
4870 /* dst = argument */
4871 mono_mb_emit_ldarg (mb, argnum);
4872 mono_mb_emit_stloc (mb, 1);
4874 mono_mb_emit_ldloc (mb, 1);
4875 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4877 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4878 /* src = tmp_locals [i] */
4879 mono_mb_emit_ldloc (mb, conv_arg);
4880 mono_mb_emit_stloc (mb, 0);
4882 /* emit valuetype conversion code */
4883 emit_struct_conv (mb, klass, TRUE);
4887 emit_struct_free (mb, klass, conv_arg);
4890 mono_mb_patch_branch (mb, pos);
4893 case MARSHAL_ACTION_CONV_RESULT:
4894 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4896 mono_mb_emit_stloc (mb, 3);
4900 /* load pointer to returned value type */
4901 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4902 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4903 /* store the address of the source into local variable 0 */
4904 mono_mb_emit_stloc (mb, 0);
4906 mono_mb_emit_ldloc_addr (mb, 3);
4907 mono_mb_emit_stloc (mb, 1);
4909 /* emit valuetype conversion code */
4910 emit_struct_conv (mb, klass, TRUE);
4913 case MARSHAL_ACTION_MANAGED_CONV_IN:
4914 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4915 klass->blittable || klass->enumtype) {
4920 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4922 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4926 mono_mb_emit_ldarg (mb, argnum);
4928 mono_mb_emit_ldarg_addr (mb, argnum);
4929 mono_mb_emit_stloc (mb, 0);
4932 mono_mb_emit_ldloc (mb, 0);
4933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4936 mono_mb_emit_ldloc_addr (mb, conv_arg);
4937 mono_mb_emit_stloc (mb, 1);
4939 /* emit valuetype conversion code */
4940 emit_struct_conv (mb, klass, TRUE);
4943 mono_mb_patch_branch (mb, pos);
4946 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4947 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4948 klass->blittable || klass->enumtype) {
4952 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4955 /* Check for null */
4956 mono_mb_emit_ldarg (mb, argnum);
4957 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4960 mono_mb_emit_ldloc_addr (mb, conv_arg);
4961 mono_mb_emit_stloc (mb, 0);
4964 mono_mb_emit_ldarg (mb, argnum);
4965 mono_mb_emit_stloc (mb, 1);
4967 /* emit valuetype conversion code */
4968 emit_struct_conv (mb, klass, FALSE);
4970 mono_mb_patch_branch (mb, pos2);
4973 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4974 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4975 klass->blittable || klass->enumtype) {
4976 mono_mb_emit_stloc (mb, 3);
4981 /* load pointer to returned value type */
4982 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4983 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4985 /* store the address of the source into local variable 0 */
4986 mono_mb_emit_stloc (mb, 0);
4987 /* allocate space for the native struct and
4988 * store the address into dst_ptr */
4989 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4990 m->retobj_class = klass;
4991 g_assert (m->retobj_var);
4992 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4993 mono_mb_emit_byte (mb, CEE_CONV_I);
4994 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4995 mono_mb_emit_stloc (mb, 1);
4996 mono_mb_emit_ldloc (mb, 1);
4997 mono_mb_emit_stloc (mb, m->retobj_var);
4999 /* emit valuetype conversion code */
5000 emit_struct_conv (mb, klass, FALSE);
5004 g_assert_not_reached ();
5011 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5012 MonoMarshalSpec *spec,
5013 int conv_arg, MonoType **conv_arg_type,
5014 MarshalAction action)
5018 case MARSHAL_ACTION_CONV_IN:
5019 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5021 case MARSHAL_ACTION_MANAGED_CONV_IN:
5022 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5026 MonoMethodBuilder *mb = m->mb;
5027 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5028 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5032 case MARSHAL_ACTION_CONV_IN:
5033 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5034 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5037 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5040 mono_mb_emit_ldarg (mb, argnum);
5041 mono_mb_emit_byte (mb, CEE_LDIND_I);
5043 mono_mb_emit_ldarg (mb, argnum);
5047 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5048 mono_mb_emit_exception_marshal_directive (mb, msg);
5050 mono_mb_emit_icall (mb, conv_to_icall (conv));
5052 mono_mb_emit_stloc (mb, conv_arg);
5056 case MARSHAL_ACTION_CONV_OUT:
5057 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5059 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5060 mono_mb_emit_exception_marshal_directive (mb, msg);
5064 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5065 static MonoMethod *m;
5068 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5073 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5074 mono_mb_emit_exception_marshal_directive (mb, msg);
5079 * Have to allocate a new string with the same length as the original, and
5080 * copy the contents of the buffer pointed to by CONV_ARG into it.
5082 g_assert (t->byref);
5083 mono_mb_emit_ldarg (mb, argnum);
5084 mono_mb_emit_ldloc (mb, conv_arg);
5085 mono_mb_emit_ldarg (mb, argnum);
5086 mono_mb_emit_byte (mb, CEE_LDIND_I);
5087 mono_mb_emit_managed_call (mb, m, NULL);
5088 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5089 mono_mb_emit_byte (mb, CEE_STIND_REF);
5090 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5091 mono_mb_emit_ldarg (mb, argnum);
5092 mono_mb_emit_ldloc (mb, conv_arg);
5093 mono_mb_emit_icall (mb, conv_to_icall (conv));
5094 mono_mb_emit_byte (mb, CEE_STIND_REF);
5099 mono_mb_emit_ldloc (mb, conv_arg);
5100 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5101 mono_mb_emit_icall (mb, mono_free_bstr);
5103 mono_mb_emit_icall (mb, mono_marshal_free);
5107 case MARSHAL_ACTION_PUSH:
5108 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5109 mono_mb_emit_ldloc_addr (mb, conv_arg);
5111 mono_mb_emit_ldloc (mb, conv_arg);
5114 case MARSHAL_ACTION_CONV_RESULT:
5115 mono_mb_emit_stloc (mb, 0);
5117 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5119 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5120 mono_mb_emit_exception_marshal_directive (mb, msg);
5124 mono_mb_emit_ldloc (mb, 0);
5125 mono_mb_emit_icall (mb, conv_to_icall (conv));
5126 mono_mb_emit_stloc (mb, 3);
5128 /* free the string */
5129 mono_mb_emit_ldloc (mb, 0);
5130 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5131 mono_mb_emit_icall (mb, mono_free_bstr);
5133 mono_mb_emit_icall (mb, mono_marshal_free);
5136 case MARSHAL_ACTION_MANAGED_CONV_IN:
5137 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5139 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5142 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5146 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5148 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5149 mono_mb_emit_exception_marshal_directive (mb, msg);
5153 mono_mb_emit_ldarg (mb, argnum);
5155 mono_mb_emit_byte (mb, CEE_LDIND_I);
5156 mono_mb_emit_icall (mb, conv_to_icall (conv));
5157 mono_mb_emit_stloc (mb, conv_arg);
5160 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5163 mono_mb_emit_ldarg (mb, argnum);
5164 mono_mb_emit_ldloc (mb, conv_arg);
5165 mono_mb_emit_icall (mb, conv_to_icall (conv));
5166 mono_mb_emit_byte (mb, CEE_STIND_I);
5171 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5172 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5173 /* We need to make a copy so the caller is able to free it */
5174 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5176 mono_mb_emit_icall (mb, conv_to_icall (conv));
5177 mono_mb_emit_stloc (mb, 3);
5181 g_assert_not_reached ();
5189 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5190 MonoMarshalSpec *spec, int conv_arg,
5191 MonoType **conv_arg_type, MarshalAction action)
5194 if (action == MARSHAL_ACTION_CONV_IN)
5195 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5197 MonoMethodBuilder *mb = m->mb;
5200 case MARSHAL_ACTION_CONV_IN: {
5201 MonoType *intptr_type;
5202 int dar_release_slot, pos;
5204 intptr_type = &mono_defaults.int_class->byval_arg;
5205 conv_arg = mono_mb_add_local (mb, intptr_type);
5206 *conv_arg_type = intptr_type;
5208 if (!sh_dangerous_add_ref)
5209 init_safe_handle ();
5211 mono_mb_emit_ldarg (mb, argnum);
5212 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5213 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5215 mono_mb_patch_branch (mb, pos);
5218 * My tests in show that ref SafeHandles are not really
5219 * passed as ref objects. Instead a NULL is passed as the
5222 mono_mb_emit_icon (mb, 0);
5223 mono_mb_emit_stloc (mb, conv_arg);
5227 /* Create local to hold the ref parameter to DangerousAddRef */
5228 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5230 /* set release = false; */
5231 mono_mb_emit_icon (mb, 0);
5232 mono_mb_emit_stloc (mb, dar_release_slot);
5234 /* safehandle.DangerousAddRef (ref release) */
5235 mono_mb_emit_ldarg (mb, argnum);
5236 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5237 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5239 /* Pull the handle field from SafeHandle */
5240 mono_mb_emit_ldarg (mb, argnum);
5241 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5242 mono_mb_emit_byte (mb, CEE_LDIND_I);
5243 mono_mb_emit_stloc (mb, conv_arg);
5248 case MARSHAL_ACTION_PUSH:
5250 mono_mb_emit_ldloc_addr (mb, conv_arg);
5252 mono_mb_emit_ldloc (mb, conv_arg);
5255 case MARSHAL_ACTION_CONV_OUT: {
5256 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5257 int dar_release_slot = conv_arg + 1;
5260 if (!sh_dangerous_release)
5261 init_safe_handle ();
5267 * My tests indicate that ref SafeHandles parameters are not actually
5268 * passed by ref, but instead a new Handle is created regardless of
5269 * whether a change happens in the unmanaged side.
5271 * Also, the Handle is created before calling into unmanaged code,
5272 * but we do not support that mechanism (getting to the original
5273 * handle) and it makes no difference where we create this
5275 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5277 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5280 /* refval = new SafeHandleDerived ()*/
5281 mono_mb_emit_ldarg (mb, argnum);
5282 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5283 mono_mb_emit_byte (mb, CEE_STIND_REF);
5285 /* refval.handle = returned_handle */
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5288 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5289 mono_mb_emit_ldloc (mb, conv_arg);
5290 mono_mb_emit_byte (mb, CEE_STIND_I);
5292 mono_mb_emit_ldloc (mb, dar_release_slot);
5293 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5294 mono_mb_emit_ldarg (mb, argnum);
5295 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5296 mono_mb_patch_branch (mb, label_next);
5301 case MARSHAL_ACTION_CONV_RESULT: {
5302 MonoMethod *ctor = NULL;
5303 int intptr_handle_slot;
5305 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5306 mono_mb_emit_byte (mb, CEE_POP);
5307 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5311 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5313 mono_mb_emit_byte (mb, CEE_POP);
5314 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5317 /* Store the IntPtr results into a local */
5318 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5319 mono_mb_emit_stloc (mb, intptr_handle_slot);
5321 /* Create return value */
5322 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5323 mono_mb_emit_stloc (mb, 3);
5325 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5326 mono_mb_emit_ldloc (mb, 3);
5327 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5328 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5329 mono_mb_emit_byte (mb, CEE_STIND_I);
5333 case MARSHAL_ACTION_MANAGED_CONV_IN:
5334 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5337 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5338 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5341 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5342 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5345 printf ("Unhandled case for MarshalAction: %d\n", action);
5353 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5354 MonoMarshalSpec *spec, int conv_arg,
5355 MonoType **conv_arg_type, MarshalAction action)
5358 if (action == MARSHAL_ACTION_CONV_IN)
5359 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5361 MonoMethodBuilder *mb = m->mb;
5364 case MARSHAL_ACTION_CONV_IN: {
5365 MonoType *intptr_type;
5367 intptr_type = &mono_defaults.int_class->byval_arg;
5368 conv_arg = mono_mb_add_local (mb, intptr_type);
5369 *conv_arg_type = intptr_type;
5372 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5373 mono_mb_emit_exception_marshal_directive (mb, msg);
5376 mono_mb_emit_ldarg_addr (mb, argnum);
5377 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5378 mono_mb_emit_byte (mb, CEE_ADD);
5379 mono_mb_emit_byte (mb, CEE_LDIND_I);
5380 mono_mb_emit_stloc (mb, conv_arg);
5384 case MARSHAL_ACTION_PUSH:
5385 mono_mb_emit_ldloc (mb, conv_arg);
5388 case MARSHAL_ACTION_CONV_OUT: {
5389 /* no resource release required */
5393 case MARSHAL_ACTION_CONV_RESULT: {
5394 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5395 mono_mb_emit_exception_marshal_directive (mb, msg);
5399 case MARSHAL_ACTION_MANAGED_CONV_IN:
5400 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5403 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5404 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5407 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5408 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5411 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5419 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5420 MonoMarshalSpec *spec,
5421 int conv_arg, MonoType **conv_arg_type,
5422 MarshalAction action)
5425 if (action == MARSHAL_ACTION_CONV_IN)
5426 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5428 MonoMethodBuilder *mb = m->mb;
5429 MonoClass *klass = mono_class_from_mono_type (t);
5433 case MARSHAL_ACTION_CONV_IN:
5434 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5435 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5437 m->orig_conv_args [argnum] = 0;
5439 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5440 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5441 mono_mb_emit_exception_marshal_directive (mb, msg);
5445 if (klass->delegate) {
5447 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5448 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5449 mono_mb_emit_exception_marshal_directive (mb, msg);
5451 mono_mb_emit_byte (mb, CEE_LDNULL);
5452 mono_mb_emit_stloc (mb, conv_arg);
5454 mono_mb_emit_ldarg (mb, argnum);
5455 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5456 mono_mb_emit_stloc (mb, conv_arg);
5458 } else if (klass == mono_defaults.stringbuilder_class) {
5459 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5460 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5464 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5465 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5466 mono_mb_emit_exception_marshal_directive (mb, msg);
5472 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5476 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5477 mono_mb_emit_exception_marshal_directive (mb, msg);
5481 mono_mb_emit_ldarg (mb, argnum);
5483 mono_mb_emit_byte (mb, CEE_LDIND_I);
5485 mono_mb_emit_icall (mb, conv_to_icall (conv));
5486 mono_mb_emit_stloc (mb, conv_arg);
5487 } else if (klass->blittable) {
5488 mono_mb_emit_byte (mb, CEE_LDNULL);
5489 mono_mb_emit_stloc (mb, conv_arg);
5491 mono_mb_emit_ldarg (mb, argnum);
5492 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5494 mono_mb_emit_ldarg (mb, argnum);
5495 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5496 mono_mb_emit_stloc (mb, conv_arg);
5498 mono_mb_patch_branch (mb, pos);
5501 mono_mb_emit_byte (mb, CEE_LDNULL);
5502 mono_mb_emit_stloc (mb, conv_arg);
5505 /* we dont need any conversions for out parameters */
5506 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5509 mono_mb_emit_ldarg (mb, argnum);
5510 mono_mb_emit_byte (mb, CEE_LDIND_I);
5513 mono_mb_emit_ldarg (mb, argnum);
5514 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5515 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5518 /* store the address of the source into local variable 0 */
5519 mono_mb_emit_stloc (mb, 0);
5520 mono_mb_emit_ldloc (mb, 0);
5521 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5523 /* allocate space for the native struct and store the address */
5524 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5525 mono_mb_emit_byte (mb, CEE_PREFIX1);
5526 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5527 mono_mb_emit_stloc (mb, conv_arg);
5530 /* Need to store the original buffer so we can free it later */
5531 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5532 mono_mb_emit_ldloc (mb, conv_arg);
5533 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5536 /* set the src_ptr */
5537 mono_mb_emit_ldloc (mb, 0);
5538 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5539 mono_mb_emit_stloc (mb, 0);
5542 mono_mb_emit_ldloc (mb, conv_arg);
5543 mono_mb_emit_stloc (mb, 1);
5545 /* emit valuetype conversion code */
5546 emit_struct_conv (mb, klass, FALSE);
5548 mono_mb_patch_branch (mb, pos);
5552 case MARSHAL_ACTION_CONV_OUT:
5553 if (klass == mono_defaults.stringbuilder_class) {
5555 MonoMarshalNative encoding;
5556 MonoMarshalConv conv;
5558 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5559 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5561 g_assert (encoding != -1);
5564 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5568 mono_mb_emit_ldarg (mb, argnum);
5569 mono_mb_emit_ldloc (mb, conv_arg);
5572 case MONO_NATIVE_LPWSTR:
5573 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5575 case MONO_NATIVE_LPSTR:
5576 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5579 g_assert_not_reached ();
5582 mono_mb_emit_byte (mb, CEE_STIND_REF);
5584 mono_mb_emit_ldarg (mb, argnum);
5585 mono_mb_emit_ldloc (mb, conv_arg);
5587 mono_mb_emit_icall (mb, conv_to_icall (conv));
5591 mono_mb_emit_ldloc (mb, conv_arg);
5592 mono_mb_emit_icall (mb, mono_marshal_free);
5597 if (klass->delegate) {
5599 mono_mb_emit_ldarg (mb, argnum);
5600 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5601 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5602 mono_mb_emit_ldloc (mb, conv_arg);
5603 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5604 mono_mb_emit_byte (mb, CEE_STIND_REF);
5609 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5610 /* allocate a new object */
5611 mono_mb_emit_ldarg (mb, argnum);
5612 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5613 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5614 mono_mb_emit_byte (mb, CEE_STIND_REF);
5617 /* dst = *argument */
5618 mono_mb_emit_ldarg (mb, argnum);
5621 mono_mb_emit_byte (mb, CEE_LDIND_I);
5623 mono_mb_emit_stloc (mb, 1);
5625 mono_mb_emit_ldloc (mb, 1);
5626 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5628 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5629 mono_mb_emit_ldloc (mb, 1);
5630 mono_mb_emit_icon (mb, sizeof (MonoObject));
5631 mono_mb_emit_byte (mb, CEE_ADD);
5632 mono_mb_emit_stloc (mb, 1);
5634 /* src = tmp_locals [i] */
5635 mono_mb_emit_ldloc (mb, conv_arg);
5636 mono_mb_emit_stloc (mb, 0);
5638 /* emit valuetype conversion code */
5639 emit_struct_conv (mb, klass, TRUE);
5641 /* Free the structure returned by the native code */
5642 emit_struct_free (mb, klass, conv_arg);
5644 if (m->orig_conv_args [argnum]) {
5646 * If the native function changed the pointer, then free
5647 * the original structure plus the new pointer.
5649 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5650 mono_mb_emit_ldloc (mb, conv_arg);
5651 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5653 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5654 g_assert (m->orig_conv_args [argnum]);
5656 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5659 mono_mb_emit_ldloc (mb, conv_arg);
5660 mono_mb_emit_icall (mb, mono_marshal_free);
5662 mono_mb_patch_branch (mb, pos2);
5666 /* Free the original structure passed to native code */
5667 emit_struct_free (mb, klass, conv_arg);
5669 mono_mb_patch_branch (mb, pos);
5672 case MARSHAL_ACTION_PUSH:
5674 mono_mb_emit_ldloc_addr (mb, conv_arg);
5676 mono_mb_emit_ldloc (mb, conv_arg);
5679 case MARSHAL_ACTION_CONV_RESULT:
5680 if (klass->delegate) {
5681 g_assert (!t->byref);
5682 mono_mb_emit_stloc (mb, 0);
5683 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5684 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5685 mono_mb_emit_ldloc (mb, 0);
5686 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5687 mono_mb_emit_stloc (mb, 3);
5690 mono_mb_emit_stloc (mb, 0);
5692 /* Make a copy since emit_conv modifies local 0 */
5693 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5694 mono_mb_emit_ldloc (mb, 0);
5695 mono_mb_emit_stloc (mb, loc);
5697 mono_mb_emit_byte (mb, CEE_LDNULL);
5698 mono_mb_emit_stloc (mb, 3);
5700 mono_mb_emit_ldloc (mb, 0);
5701 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5703 /* allocate result object */
5705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5706 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5707 mono_mb_emit_stloc (mb, 3);
5711 mono_mb_emit_ldloc (mb, 3);
5712 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5713 mono_mb_emit_stloc (mb, 1);
5715 /* emit conversion code */
5716 emit_struct_conv (mb, klass, TRUE);
5718 emit_struct_free (mb, klass, loc);
5720 /* Free the pointer allocated by unmanaged code */
5721 mono_mb_emit_ldloc (mb, loc);
5722 mono_mb_emit_icall (mb, mono_marshal_free);
5723 mono_mb_patch_branch (mb, pos);
5727 case MARSHAL_ACTION_MANAGED_CONV_IN:
5728 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5730 if (klass->delegate) {
5731 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5732 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5733 mono_mb_emit_ldarg (mb, argnum);
5735 mono_mb_emit_byte (mb, CEE_LDIND_I);
5736 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5737 mono_mb_emit_stloc (mb, conv_arg);
5741 if (klass == mono_defaults.stringbuilder_class) {
5742 MonoMarshalNative encoding;
5744 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5747 g_assert (encoding == MONO_NATIVE_LPSTR);
5749 g_assert (!t->byref);
5750 g_assert (encoding != -1);
5752 mono_mb_emit_ldarg (mb, argnum);
5753 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5754 mono_mb_emit_stloc (mb, conv_arg);
5758 /* The class can not have an automatic layout */
5759 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5760 mono_mb_emit_auto_layout_exception (mb, klass);
5764 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5765 mono_mb_emit_byte (mb, CEE_LDNULL);
5766 mono_mb_emit_stloc (mb, conv_arg);
5771 mono_mb_emit_ldarg (mb, argnum);
5775 /* Check for NULL and raise an exception */
5776 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5778 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5780 mono_mb_patch_branch (mb, pos2);
5781 mono_mb_emit_ldarg (mb, argnum);
5782 mono_mb_emit_byte (mb, CEE_LDIND_I);
5785 mono_mb_emit_stloc (mb, 0);
5787 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5788 mono_mb_emit_stloc (mb, conv_arg);
5790 mono_mb_emit_ldloc (mb, 0);
5791 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5793 /* Create and set dst */
5794 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5795 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5796 mono_mb_emit_stloc (mb, conv_arg);
5797 mono_mb_emit_ldloc (mb, conv_arg);
5798 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5799 mono_mb_emit_stloc (mb, 1);
5801 /* emit valuetype conversion code */
5802 emit_struct_conv (mb, klass, TRUE);
5804 mono_mb_patch_branch (mb, pos);
5807 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5808 if (klass->delegate) {
5810 mono_mb_emit_ldarg (mb, argnum);
5811 mono_mb_emit_ldloc (mb, conv_arg);
5812 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5813 mono_mb_emit_byte (mb, CEE_STIND_I);
5819 /* Check for null */
5820 mono_mb_emit_ldloc (mb, conv_arg);
5821 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5822 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5824 mono_mb_emit_byte (mb, CEE_STIND_REF);
5825 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5827 mono_mb_patch_branch (mb, pos);
5830 mono_mb_emit_ldloc (mb, conv_arg);
5831 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5832 mono_mb_emit_stloc (mb, 0);
5834 /* Allocate and set dest */
5835 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5836 mono_mb_emit_byte (mb, CEE_CONV_I);
5837 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5838 mono_mb_emit_stloc (mb, 1);
5840 /* Update argument pointer */
5841 mono_mb_emit_ldarg (mb, argnum);
5842 mono_mb_emit_ldloc (mb, 1);
5843 mono_mb_emit_byte (mb, CEE_STIND_I);
5845 /* emit valuetype conversion code */
5846 emit_struct_conv (mb, klass, FALSE);
5848 mono_mb_patch_branch (mb, pos2);
5849 } else if (klass == mono_defaults.stringbuilder_class) {
5850 // FIXME: What to do here ?
5852 /* byval [Out] marshalling */
5854 /* FIXME: Handle null */
5857 mono_mb_emit_ldloc (mb, conv_arg);
5858 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5859 mono_mb_emit_stloc (mb, 0);
5862 mono_mb_emit_ldarg (mb, argnum);
5863 mono_mb_emit_stloc (mb, 1);
5865 /* emit valuetype conversion code */
5866 emit_struct_conv (mb, klass, FALSE);
5870 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5871 if (klass->delegate) {
5872 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5873 mono_mb_emit_stloc (mb, 3);
5877 /* The class can not have an automatic layout */
5878 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5879 mono_mb_emit_auto_layout_exception (mb, klass);
5883 mono_mb_emit_stloc (mb, 0);
5884 /* Check for null */
5885 mono_mb_emit_ldloc (mb, 0);
5886 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5887 mono_mb_emit_byte (mb, CEE_LDNULL);
5888 mono_mb_emit_stloc (mb, 3);
5889 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5891 mono_mb_patch_branch (mb, pos);
5894 mono_mb_emit_ldloc (mb, 0);
5895 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5896 mono_mb_emit_stloc (mb, 0);
5898 /* Allocate and set dest */
5899 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5900 mono_mb_emit_byte (mb, CEE_CONV_I);
5901 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5902 mono_mb_emit_byte (mb, CEE_DUP);
5903 mono_mb_emit_stloc (mb, 1);
5904 mono_mb_emit_stloc (mb, 3);
5906 emit_struct_conv (mb, klass, FALSE);
5908 mono_mb_patch_branch (mb, pos2);
5912 g_assert_not_reached ();
5923 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5924 MonoMarshalSpec *spec,
5925 int conv_arg, MonoType **conv_arg_type,
5926 MarshalAction action)
5928 MonoMethodBuilder *mb = m->mb;
5929 static MonoMethod *get_object_for_native_variant = NULL;
5930 static MonoMethod *get_native_variant_for_object = NULL;
5932 if (!get_object_for_native_variant)
5933 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5934 g_assert (get_object_for_native_variant);
5936 if (!get_native_variant_for_object)
5937 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5938 g_assert (get_native_variant_for_object);
5941 case MARSHAL_ACTION_CONV_IN: {
5942 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5945 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5947 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5949 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5952 mono_mb_emit_ldarg (mb, argnum);
5954 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5955 mono_mb_emit_ldloc_addr (mb, conv_arg);
5956 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5960 case MARSHAL_ACTION_CONV_OUT: {
5961 static MonoMethod *variant_clear = NULL;
5964 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5965 g_assert (variant_clear);
5968 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5969 mono_mb_emit_ldarg (mb, argnum);
5970 mono_mb_emit_ldloc_addr (mb, conv_arg);
5971 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5972 mono_mb_emit_byte (mb, CEE_STIND_REF);
5975 mono_mb_emit_ldloc_addr (mb, conv_arg);
5976 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5980 case MARSHAL_ACTION_PUSH:
5982 mono_mb_emit_ldloc_addr (mb, conv_arg);
5984 mono_mb_emit_ldloc (mb, conv_arg);
5987 case MARSHAL_ACTION_CONV_RESULT: {
5988 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5989 mono_mb_emit_exception_marshal_directive (mb, msg);
5993 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5994 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5997 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5999 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6001 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6005 mono_mb_emit_ldarg (mb, argnum);
6007 mono_mb_emit_ldarg_addr (mb, argnum);
6008 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6009 mono_mb_emit_stloc (mb, conv_arg);
6013 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6014 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6015 mono_mb_emit_ldloc (mb, conv_arg);
6016 mono_mb_emit_ldarg (mb, argnum);
6017 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6022 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6023 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6024 mono_mb_emit_exception_marshal_directive (mb, msg);
6029 g_assert_not_reached ();
6035 #endif /* DISABLE_COM */
6036 #endif /* DISABLE_JIT */
6039 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6041 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6042 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6044 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6046 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6058 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6059 MonoMarshalSpec *spec,
6060 int conv_arg, MonoType **conv_arg_type,
6061 MarshalAction action)
6065 case MARSHAL_ACTION_CONV_IN:
6066 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6068 case MARSHAL_ACTION_MANAGED_CONV_IN:
6069 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6073 MonoMethodBuilder *mb = m->mb;
6074 MonoClass *klass = mono_class_from_mono_type (t);
6075 gboolean need_convert, need_free;
6076 MonoMarshalNative encoding;
6078 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6081 case MARSHAL_ACTION_CONV_IN:
6082 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6083 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6085 if (klass->element_class->blittable) {
6086 mono_mb_emit_ldarg (mb, argnum);
6088 mono_mb_emit_byte (mb, CEE_LDIND_I);
6089 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6090 mono_mb_emit_stloc (mb, conv_arg);
6093 guint32 label1, label2, label3;
6094 int index_var, src_var, dest_ptr, esize;
6095 MonoMarshalConv conv;
6096 gboolean is_string = FALSE;
6098 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6100 eklass = klass->element_class;
6102 if (eklass == mono_defaults.string_class) {
6104 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6106 else if (eklass == mono_defaults.stringbuilder_class) {
6108 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6111 conv = (MonoMarshalConv)-1;
6113 if (is_string && conv == -1) {
6114 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6115 mono_mb_emit_exception_marshal_directive (mb, msg);
6119 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6120 mono_mb_emit_ldarg (mb, argnum);
6122 mono_mb_emit_byte (mb, CEE_LDIND_I);
6123 mono_mb_emit_stloc (mb, src_var);
6126 mono_mb_emit_ldloc (mb, src_var);
6127 mono_mb_emit_stloc (mb, conv_arg);
6128 mono_mb_emit_ldloc (mb, src_var);
6129 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6132 esize = sizeof (gpointer);
6133 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6134 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6136 esize = mono_class_native_size (eklass, NULL);
6138 /* allocate space for the native struct and store the address */
6139 mono_mb_emit_icon (mb, esize);
6140 mono_mb_emit_ldloc (mb, src_var);
6141 mono_mb_emit_byte (mb, CEE_LDLEN);
6143 if (eklass == mono_defaults.string_class) {
6144 /* Make the array bigger for the terminating null */
6145 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6146 mono_mb_emit_byte (mb, CEE_ADD);
6148 mono_mb_emit_byte (mb, CEE_MUL);
6149 mono_mb_emit_byte (mb, CEE_PREFIX1);
6150 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6151 mono_mb_emit_stloc (mb, conv_arg);
6153 mono_mb_emit_ldloc (mb, conv_arg);
6154 mono_mb_emit_stloc (mb, dest_ptr);
6156 /* Emit marshalling loop */
6157 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6158 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6159 mono_mb_emit_stloc (mb, index_var);
6160 label2 = mono_mb_get_label (mb);
6161 mono_mb_emit_ldloc (mb, index_var);
6162 mono_mb_emit_ldloc (mb, src_var);
6163 mono_mb_emit_byte (mb, CEE_LDLEN);
6164 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6166 /* Emit marshalling code */
6169 mono_mb_emit_ldloc (mb, dest_ptr);
6170 mono_mb_emit_ldloc (mb, src_var);
6171 mono_mb_emit_ldloc (mb, index_var);
6172 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6173 mono_mb_emit_icall (mb, conv_to_icall (conv));
6174 mono_mb_emit_byte (mb, CEE_STIND_I);
6176 /* set the src_ptr */
6177 mono_mb_emit_ldloc (mb, src_var);
6178 mono_mb_emit_ldloc (mb, index_var);
6179 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6180 mono_mb_emit_stloc (mb, 0);
6183 mono_mb_emit_ldloc (mb, dest_ptr);
6184 mono_mb_emit_stloc (mb, 1);
6186 /* emit valuetype conversion code */
6187 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6190 mono_mb_emit_add_to_local (mb, index_var, 1);
6191 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6193 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6195 mono_mb_patch_branch (mb, label3);
6197 if (eklass == mono_defaults.string_class) {
6198 /* Null terminate */
6199 mono_mb_emit_ldloc (mb, dest_ptr);
6200 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6201 mono_mb_emit_byte (mb, CEE_STIND_REF);
6204 mono_mb_patch_branch (mb, label1);
6209 case MARSHAL_ACTION_CONV_OUT:
6210 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6211 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);
6212 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6215 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6216 int param_num = spec->data.array_data.param_num;
6217 MonoType *param_type;
6219 param_type = m->sig->params [param_num];
6221 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6222 char *msg = g_strdup ("Not implemented.");
6223 mono_mb_emit_exception_marshal_directive (mb, msg);
6228 mono_mb_emit_ldarg (mb, argnum);
6230 /* Create the managed array */
6231 mono_mb_emit_ldarg (mb, param_num);
6232 if (m->sig->params [param_num]->byref)
6233 // FIXME: Support other types
6234 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6235 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6236 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6237 /* Store into argument */
6238 mono_mb_emit_byte (mb, CEE_STIND_I);
6242 if (need_convert || need_free) {
6243 /* FIXME: Optimize blittable case */
6245 guint32 label1, label2, label3;
6246 int index_var, src_ptr, loc, esize;
6248 eklass = klass->element_class;
6249 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6250 esize = sizeof (gpointer);
6251 else if (eklass == mono_defaults.char_class)
6252 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6254 esize = mono_class_native_size (eklass, NULL);
6255 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6256 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6259 mono_mb_emit_ldarg (mb, argnum);
6261 mono_mb_emit_byte (mb, CEE_LDIND_I);
6262 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6264 mono_mb_emit_ldloc (mb, conv_arg);
6265 mono_mb_emit_stloc (mb, src_ptr);
6267 /* Emit marshalling loop */
6268 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6269 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6270 mono_mb_emit_stloc (mb, index_var);
6271 label2 = mono_mb_get_label (mb);
6272 mono_mb_emit_ldloc (mb, index_var);
6273 mono_mb_emit_ldarg (mb, argnum);
6275 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6276 mono_mb_emit_byte (mb, CEE_LDLEN);
6277 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6279 /* Emit marshalling code */
6281 if (eklass == mono_defaults.stringbuilder_class) {
6282 gboolean need_free2;
6283 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6285 g_assert (conv != -1);
6288 mono_mb_emit_ldarg (mb, argnum);
6290 mono_mb_emit_byte (mb, CEE_LDIND_I);
6291 mono_mb_emit_ldloc (mb, index_var);
6292 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6295 mono_mb_emit_ldloc (mb, src_ptr);
6296 mono_mb_emit_byte (mb, CEE_LDIND_I);
6298 mono_mb_emit_icall (mb, conv_to_icall (conv));
6302 mono_mb_emit_ldloc (mb, src_ptr);
6303 mono_mb_emit_byte (mb, CEE_LDIND_I);
6305 mono_mb_emit_icall (mb, mono_marshal_free);
6308 else if (eklass == mono_defaults.string_class) {
6311 mono_mb_emit_ldloc (mb, src_ptr);
6312 mono_mb_emit_byte (mb, CEE_LDIND_I);
6314 mono_mb_emit_icall (mb, mono_marshal_free);
6319 /* set the src_ptr */
6320 mono_mb_emit_ldloc (mb, src_ptr);
6321 mono_mb_emit_stloc (mb, 0);
6324 mono_mb_emit_ldarg (mb, argnum);
6326 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6327 mono_mb_emit_ldloc (mb, index_var);
6328 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6329 mono_mb_emit_stloc (mb, 1);
6331 /* emit valuetype conversion code */
6332 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6336 mono_mb_emit_ldloc (mb, src_ptr);
6337 mono_mb_emit_stloc (mb, loc);
6338 mono_mb_emit_ldloc (mb, loc);
6340 emit_struct_free (mb, eklass, loc);
6344 mono_mb_emit_add_to_local (mb, index_var, 1);
6345 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6347 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6349 mono_mb_patch_branch (mb, label1);
6350 mono_mb_patch_branch (mb, label3);
6353 if (klass->element_class->blittable) {
6354 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6356 mono_mb_emit_ldarg (mb, argnum);
6358 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6359 mono_mb_emit_ldloc (mb, conv_arg);
6360 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6365 case MARSHAL_ACTION_PUSH:
6367 mono_mb_emit_ldloc_addr (mb, conv_arg);
6369 mono_mb_emit_ldloc (mb, conv_arg);
6372 case MARSHAL_ACTION_CONV_RESULT:
6373 /* fixme: we need conversions here */
6374 mono_mb_emit_stloc (mb, 3);
6377 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6379 guint32 label1, label2, label3;
6380 int index_var, src_ptr, esize, param_num, num_elem;
6381 MonoMarshalConv conv;
6382 gboolean is_string = FALSE;
6384 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6385 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6388 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6389 mono_mb_emit_exception_marshal_directive (mb, msg);
6393 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6394 mono_mb_emit_exception_marshal_directive (mb, msg);
6397 if (spec->native != MONO_NATIVE_LPARRAY) {
6398 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6399 mono_mb_emit_exception_marshal_directive (mb, msg);
6403 /* FIXME: t is from the method which is wrapped, not the delegate type */
6404 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6406 param_num = spec->data.array_data.param_num;
6407 num_elem = spec->data.array_data.num_elem;
6408 if (spec->data.array_data.elem_mult == 0)
6409 /* param_num is not specified */
6412 if (param_num == -1) {
6413 if (num_elem <= 0) {
6414 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6415 mono_mb_emit_exception_marshal_directive (mb, msg);
6420 /* FIXME: Optimize blittable case */
6422 eklass = klass->element_class;
6423 if (eklass == mono_defaults.string_class) {
6425 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6427 else if (eklass == mono_defaults.stringbuilder_class) {
6429 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6432 conv = (MonoMarshalConv)-1;
6434 mono_marshal_load_type_info (eklass);
6437 esize = sizeof (gpointer);
6439 esize = mono_class_native_size (eklass, NULL);
6440 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6442 mono_mb_emit_byte (mb, CEE_LDNULL);
6443 mono_mb_emit_stloc (mb, conv_arg);
6445 /* Check param index */
6446 if (param_num != -1) {
6447 if (param_num >= m->sig->param_count) {
6448 char *msg = g_strdup ("Array size control parameter index is out of range.");
6449 mono_mb_emit_exception_marshal_directive (mb, msg);
6452 switch (m->sig->params [param_num]->type) {
6465 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6466 mono_mb_emit_exception_marshal_directive (mb, msg);
6473 mono_mb_emit_ldarg (mb, argnum);
6474 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6476 mono_mb_emit_ldarg (mb, argnum);
6477 mono_mb_emit_stloc (mb, src_ptr);
6479 /* Create managed array */
6481 * The LPArray marshalling spec says that sometimes param_num starts
6482 * from 1, sometimes it starts from 0. But MS seems to allways start
6486 if (param_num == -1) {
6487 mono_mb_emit_icon (mb, num_elem);
6489 mono_mb_emit_ldarg (mb, param_num);
6491 mono_mb_emit_icon (mb, num_elem);
6492 mono_mb_emit_byte (mb, CEE_ADD);
6494 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6497 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6498 mono_mb_emit_stloc (mb, conv_arg);
6500 if (eklass->blittable) {
6501 mono_mb_emit_ldloc (mb, conv_arg);
6502 mono_mb_emit_byte (mb, CEE_CONV_I);
6503 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6504 mono_mb_emit_byte (mb, CEE_ADD);
6505 mono_mb_emit_ldarg (mb, argnum);
6506 mono_mb_emit_ldloc (mb, conv_arg);
6507 mono_mb_emit_byte (mb, CEE_LDLEN);
6508 mono_mb_emit_icon (mb, esize);
6509 mono_mb_emit_byte (mb, CEE_MUL);
6510 mono_mb_emit_byte (mb, CEE_PREFIX1);
6511 mono_mb_emit_byte (mb, CEE_CPBLK);
6515 /* Emit marshalling loop */
6516 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6517 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6518 mono_mb_emit_stloc (mb, index_var);
6519 label2 = mono_mb_get_label (mb);
6520 mono_mb_emit_ldloc (mb, index_var);
6521 mono_mb_emit_ldloc (mb, conv_arg);
6522 mono_mb_emit_byte (mb, CEE_LDLEN);
6523 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6525 /* Emit marshalling code */
6527 g_assert (conv != -1);
6529 mono_mb_emit_ldloc (mb, conv_arg);
6530 mono_mb_emit_ldloc (mb, index_var);
6532 mono_mb_emit_ldloc (mb, src_ptr);
6533 mono_mb_emit_byte (mb, CEE_LDIND_I);
6535 mono_mb_emit_icall (mb, conv_to_icall (conv));
6536 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6539 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6540 mono_mb_emit_exception_marshal_directive (mb, msg);
6544 mono_mb_emit_add_to_local (mb, index_var, 1);
6545 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6547 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6549 mono_mb_patch_branch (mb, label1);
6550 mono_mb_patch_branch (mb, label3);
6554 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6556 guint32 label1, label2, label3;
6557 int index_var, dest_ptr, esize, param_num, num_elem;
6558 MonoMarshalConv conv;
6559 gboolean is_string = FALSE;
6562 /* Already handled in CONV_IN */
6565 /* These are already checked in CONV_IN */
6566 g_assert (!t->byref);
6567 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6568 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6570 param_num = spec->data.array_data.param_num;
6571 num_elem = spec->data.array_data.num_elem;
6573 if (spec->data.array_data.elem_mult == 0)
6574 /* param_num is not specified */
6577 if (param_num == -1) {
6578 if (num_elem <= 0) {
6579 g_assert_not_reached ();
6583 /* FIXME: Optimize blittable case */
6585 eklass = klass->element_class;
6586 if (eklass == mono_defaults.string_class) {
6588 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6590 else if (eklass == mono_defaults.stringbuilder_class) {
6592 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6595 conv = (MonoMarshalConv)-1;
6597 mono_marshal_load_type_info (eklass);
6600 esize = sizeof (gpointer);
6602 esize = mono_class_native_size (eklass, NULL);
6604 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6607 mono_mb_emit_ldloc (mb, conv_arg);
6608 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6610 mono_mb_emit_ldarg (mb, argnum);
6611 mono_mb_emit_stloc (mb, dest_ptr);
6613 if (eklass->blittable) {
6615 mono_mb_emit_ldarg (mb, argnum);
6617 mono_mb_emit_ldloc (mb, conv_arg);
6618 mono_mb_emit_byte (mb, CEE_CONV_I);
6619 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6620 mono_mb_emit_byte (mb, CEE_ADD);
6622 mono_mb_emit_ldloc (mb, conv_arg);
6623 mono_mb_emit_byte (mb, CEE_LDLEN);
6624 mono_mb_emit_icon (mb, esize);
6625 mono_mb_emit_byte (mb, CEE_MUL);
6626 mono_mb_emit_byte (mb, CEE_PREFIX1);
6627 mono_mb_emit_byte (mb, CEE_CPBLK);
6631 /* Emit marshalling loop */
6632 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6633 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6634 mono_mb_emit_stloc (mb, index_var);
6635 label2 = mono_mb_get_label (mb);
6636 mono_mb_emit_ldloc (mb, index_var);
6637 mono_mb_emit_ldloc (mb, conv_arg);
6638 mono_mb_emit_byte (mb, CEE_LDLEN);
6639 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6641 /* Emit marshalling code */
6643 g_assert (conv != -1);
6646 mono_mb_emit_ldloc (mb, dest_ptr);
6649 mono_mb_emit_ldloc (mb, conv_arg);
6650 mono_mb_emit_ldloc (mb, index_var);
6652 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6654 mono_mb_emit_icall (mb, conv_to_icall (conv));
6655 mono_mb_emit_byte (mb, CEE_STIND_I);
6658 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6659 mono_mb_emit_exception_marshal_directive (mb, msg);
6663 mono_mb_emit_add_to_local (mb, index_var, 1);
6664 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6666 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6668 mono_mb_patch_branch (mb, label1);
6669 mono_mb_patch_branch (mb, label3);
6673 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6675 guint32 label1, label2, label3;
6676 int index_var, src, dest, esize;
6677 MonoMarshalConv conv = (MonoMarshalConv)-1;
6678 gboolean is_string = FALSE;
6680 g_assert (!t->byref);
6682 eklass = klass->element_class;
6684 mono_marshal_load_type_info (eklass);
6686 if (eklass == mono_defaults.string_class) {
6688 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6691 g_assert_not_reached ();
6695 esize = sizeof (gpointer);
6696 else if (eklass == mono_defaults.char_class)
6697 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6699 esize = mono_class_native_size (eklass, NULL);
6701 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6702 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6704 mono_mb_emit_stloc (mb, src);
6705 mono_mb_emit_ldloc (mb, src);
6706 mono_mb_emit_stloc (mb, 3);
6708 /* Check for null */
6709 mono_mb_emit_ldloc (mb, src);
6710 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6712 /* Allocate native array */
6713 mono_mb_emit_icon (mb, esize);
6714 mono_mb_emit_ldloc (mb, src);
6715 mono_mb_emit_byte (mb, CEE_LDLEN);
6717 if (eklass == mono_defaults.string_class) {
6718 /* Make the array bigger for the terminating null */
6719 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6720 mono_mb_emit_byte (mb, CEE_ADD);
6722 mono_mb_emit_byte (mb, CEE_MUL);
6723 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6724 mono_mb_emit_stloc (mb, dest);
6725 mono_mb_emit_ldloc (mb, dest);
6726 mono_mb_emit_stloc (mb, 3);
6728 /* Emit marshalling loop */
6729 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6730 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6731 mono_mb_emit_stloc (mb, index_var);
6732 label2 = mono_mb_get_label (mb);
6733 mono_mb_emit_ldloc (mb, index_var);
6734 mono_mb_emit_ldloc (mb, src);
6735 mono_mb_emit_byte (mb, CEE_LDLEN);
6736 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6738 /* Emit marshalling code */
6740 g_assert (conv != -1);
6743 mono_mb_emit_ldloc (mb, dest);
6746 mono_mb_emit_ldloc (mb, src);
6747 mono_mb_emit_ldloc (mb, index_var);
6749 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6751 mono_mb_emit_icall (mb, conv_to_icall (conv));
6752 mono_mb_emit_byte (mb, CEE_STIND_I);
6755 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6756 mono_mb_emit_exception_marshal_directive (mb, msg);
6760 mono_mb_emit_add_to_local (mb, index_var, 1);
6761 mono_mb_emit_add_to_local (mb, dest, esize);
6763 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6765 mono_mb_patch_branch (mb, label3);
6766 mono_mb_patch_branch (mb, label1);
6770 g_assert_not_reached ();
6777 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6780 return &mono_defaults.int32_class->byval_arg;
6782 switch (spec->native) {
6783 case MONO_NATIVE_I1:
6784 case MONO_NATIVE_U1:
6785 return &mono_defaults.byte_class->byval_arg;
6786 case MONO_NATIVE_VARIANTBOOL:
6787 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6788 return &mono_defaults.int16_class->byval_arg;
6789 case MONO_NATIVE_BOOLEAN:
6790 return &mono_defaults.int32_class->byval_arg;
6792 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6793 return &mono_defaults.int32_class->byval_arg;
6799 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6801 MonoClass* conv_arg_class = mono_defaults.int32_class;
6803 switch (spec->native) {
6804 case MONO_NATIVE_I1:
6805 case MONO_NATIVE_U1:
6806 conv_arg_class = mono_defaults.byte_class;
6807 if (ldop) *ldop = CEE_LDIND_I1;
6809 case MONO_NATIVE_VARIANTBOOL:
6810 conv_arg_class = mono_defaults.int16_class;
6811 if (ldop) *ldop = CEE_LDIND_I2;
6813 case MONO_NATIVE_BOOLEAN:
6816 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6819 return conv_arg_class;
6823 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6824 MonoMarshalSpec *spec,
6825 int conv_arg, MonoType **conv_arg_type,
6826 MarshalAction action)
6830 case MARSHAL_ACTION_CONV_IN:
6832 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6834 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6837 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6838 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6840 *conv_arg_type = &conv_arg_class->this_arg;
6842 *conv_arg_type = &conv_arg_class->byval_arg;
6848 MonoMethodBuilder *mb = m->mb;
6851 case MARSHAL_ACTION_CONV_IN: {
6852 MonoType *local_type;
6854 guint8 ldc_op = CEE_LDC_I4_1;
6856 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6858 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6860 *conv_arg_type = local_type;
6861 conv_arg = mono_mb_add_local (mb, local_type);
6863 mono_mb_emit_ldarg (mb, argnum);
6865 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6866 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6867 mono_mb_emit_byte (mb, ldc_op);
6868 mono_mb_emit_stloc (mb, conv_arg);
6869 mono_mb_patch_branch (mb, label_false);
6874 case MARSHAL_ACTION_CONV_OUT:
6876 int label_false, label_end;
6880 mono_mb_emit_ldarg (mb, argnum);
6881 mono_mb_emit_ldloc (mb, conv_arg);
6883 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6884 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6886 label_end = mono_mb_emit_branch (mb, CEE_BR);
6887 mono_mb_patch_branch (mb, label_false);
6888 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6889 mono_mb_patch_branch (mb, label_end);
6891 mono_mb_emit_byte (mb, CEE_STIND_I1);
6895 case MARSHAL_ACTION_PUSH:
6897 mono_mb_emit_ldloc_addr (mb, conv_arg);
6899 mono_mb_emit_ldloc (mb, conv_arg);
6901 mono_mb_emit_ldarg (mb, argnum);
6904 case MARSHAL_ACTION_CONV_RESULT:
6905 /* maybe we need to make sure that it fits within 8 bits */
6906 mono_mb_emit_stloc (mb, 3);
6909 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6910 MonoClass* conv_arg_class = mono_defaults.int32_class;
6911 guint8 ldop = CEE_LDIND_I4;
6912 int label_null, label_false;
6914 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6915 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6918 *conv_arg_type = &conv_arg_class->this_arg;
6920 *conv_arg_type = &conv_arg_class->byval_arg;
6923 mono_mb_emit_ldarg (mb, argnum);
6927 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6928 mono_mb_emit_ldarg (mb, argnum);
6929 mono_mb_emit_byte (mb, ldop);
6933 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6934 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6935 mono_mb_emit_stloc (mb, conv_arg);
6936 mono_mb_patch_branch (mb, label_false);
6939 mono_mb_patch_branch (mb, label_null);
6943 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6944 guint8 stop = CEE_STIND_I4;
6945 guint8 ldc_op = CEE_LDC_I4_1;
6946 int label_null,label_false, label_end;;
6951 switch (spec->native) {
6952 case MONO_NATIVE_I1:
6953 case MONO_NATIVE_U1:
6954 stop = CEE_STIND_I1;
6956 case MONO_NATIVE_VARIANTBOOL:
6957 stop = CEE_STIND_I2;
6958 ldc_op = CEE_LDC_I4_M1;
6966 mono_mb_emit_ldarg (mb, argnum);
6967 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6969 mono_mb_emit_ldarg (mb, argnum);
6970 mono_mb_emit_ldloc (mb, conv_arg);
6972 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6973 mono_mb_emit_byte (mb, ldc_op);
6974 label_end = mono_mb_emit_branch (mb, CEE_BR);
6976 mono_mb_patch_branch (mb, label_false);
6977 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6978 mono_mb_patch_branch (mb, label_end);
6980 mono_mb_emit_byte (mb, stop);
6981 mono_mb_patch_branch (mb, label_null);
6986 g_assert_not_reached ();
6993 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6994 MonoMarshalSpec *spec, int conv_arg,
6995 MonoType **conv_arg_type, MarshalAction action)
6998 MonoMethodBuilder *mb = m->mb;
7001 case MARSHAL_ACTION_CONV_IN:
7002 /* MS seems to allow this in some cases, ie. bxc #158 */
7004 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7005 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7006 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7011 case MARSHAL_ACTION_PUSH:
7012 mono_mb_emit_ldarg (mb, argnum);
7015 case MARSHAL_ACTION_CONV_RESULT:
7016 /* no conversions necessary */
7017 mono_mb_emit_stloc (mb, 3);
7028 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7029 MonoMarshalSpec *spec, int conv_arg,
7030 MonoType **conv_arg_type, MarshalAction action)
7033 MonoMethodBuilder *mb = m->mb;
7036 case MARSHAL_ACTION_PUSH:
7037 /* fixme: dont know how to marshal that. We cant simply
7038 * convert it to a one byte UTF8 character, because an
7039 * unicode character may need more that one byte in UTF8 */
7040 mono_mb_emit_ldarg (mb, argnum);
7043 case MARSHAL_ACTION_CONV_RESULT:
7044 /* fixme: we need conversions here */
7045 mono_mb_emit_stloc (mb, 3);
7056 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7057 MonoMarshalSpec *spec, int conv_arg,
7058 MonoType **conv_arg_type, MarshalAction action)
7061 MonoMethodBuilder *mb = m->mb;
7064 case MARSHAL_ACTION_PUSH:
7065 mono_mb_emit_ldarg (mb, argnum);
7068 case MARSHAL_ACTION_CONV_RESULT:
7069 /* no conversions necessary */
7070 mono_mb_emit_stloc (mb, 3);
7081 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7082 MonoMarshalSpec *spec, int conv_arg,
7083 MonoType **conv_arg_type, MarshalAction action)
7085 /* Ensure that we have marshalling info for this param */
7086 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7088 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7089 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7091 if (spec && spec->native == MONO_NATIVE_ASANY)
7092 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7095 case MONO_TYPE_VALUETYPE:
7096 if (t->data.klass == mono_defaults.handleref_class)
7097 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7099 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7100 case MONO_TYPE_STRING:
7101 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7102 case MONO_TYPE_CLASS:
7103 case MONO_TYPE_OBJECT:
7105 if (spec && spec->native == MONO_NATIVE_STRUCT)
7106 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7108 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7109 spec->native == MONO_NATIVE_IDISPATCH ||
7110 spec->native == MONO_NATIVE_INTERFACE))
7111 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7112 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7113 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7114 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7115 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7118 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7119 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7120 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7122 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7123 case MONO_TYPE_ARRAY:
7124 case MONO_TYPE_SZARRAY:
7125 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7126 case MONO_TYPE_BOOLEAN:
7127 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7129 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7130 case MONO_TYPE_CHAR:
7131 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7144 case MONO_TYPE_FNPTR:
7145 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7146 case MONO_TYPE_GENERICINST:
7147 if (mono_type_generic_inst_is_valuetype (t))
7148 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7150 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7158 * mono_marshal_emit_native_wrapper:
7159 * @image: the image to use for looking up custom marshallers
7160 * @sig: The signature of the native function
7161 * @piinfo: Marshalling information
7162 * @mspecs: Marshalling information
7163 * @aot: whenever the created method will be compiled by the AOT compiler
7164 * @method: if non-NULL, the pinvoke method to call
7165 * @check_exceptions: Whenever to check for pending exceptions after the native call
7166 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7168 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7171 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)
7173 EmitMarshalContext m;
7174 MonoMethodSignature *csig;
7176 int i, argnum, *tmp_locals;
7177 int type, param_shift = 0;
7178 static MonoMethodSignature *get_last_error_sig = NULL;
7179 int coop_gc_stack_dummy, coop_gc_var;
7181 memset (&m, 0, sizeof (m));
7186 /* we copy the signature, so that we can set pinvoke to 0 */
7188 /* The function address is passed as the first argument */
7189 g_assert (!sig->hasthis);
7192 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7200 /* we allocate local for use with emit_struct_conv() */
7201 /* allocate local 0 (pointer) src_ptr */
7202 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7203 /* allocate local 1 (pointer) dst_ptr */
7204 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7205 /* allocate local 2 (boolean) delete_old */
7206 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7208 /* delete_old = FALSE */
7209 mono_mb_emit_icon (mb, 0);
7210 mono_mb_emit_stloc (mb, 2);
7212 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7213 /* allocate local 3 to store the return value */
7214 mono_mb_add_local (mb, sig->ret);
7217 if (mono_threads_is_coop_enabled ()) {
7218 /* local 4, dummy local used to get a stack address for suspend funcs */
7219 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7220 /* local 5, the local to be used when calling the suspend funcs */
7221 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7224 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7225 /* Return type custom marshaling */
7227 * Since we can't determine the return type of the unmanaged function,
7228 * we assume it returns a pointer, and pass that pointer to
7229 * MarshalNativeToManaged.
7231 csig->ret = &mono_defaults.int_class->byval_arg;
7234 /* we first do all conversions */
7235 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7236 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7238 for (i = 0; i < sig->param_count; i ++) {
7239 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7242 /* push all arguments */
7245 mono_mb_emit_byte (mb, CEE_LDARG_0);
7247 for (i = 0; i < sig->param_count; i++) {
7248 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7251 if (mono_threads_is_coop_enabled ()) {
7252 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7253 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7254 mono_mb_emit_stloc (mb, coop_gc_var);
7257 /* call the native method */
7259 mono_mb_emit_byte (mb, CEE_LDARG_0);
7260 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7261 mono_mb_emit_byte (mb, CEE_LDIND_I);
7262 mono_mb_emit_calli (mb, csig);
7263 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7265 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7267 g_assert_not_reached ();
7272 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7273 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7274 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7275 mono_mb_emit_calli (mb, csig);
7277 mono_mb_emit_native_call (mb, csig, func);
7281 /* Set LastError if needed */
7282 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7283 if (!get_last_error_sig) {
7284 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7285 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7286 get_last_error_sig->pinvoke = 1;
7291 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7292 * clobber its value.
7294 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7295 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7297 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7301 if (mono_threads_is_coop_enabled ()) {
7302 mono_mb_emit_ldloc (mb, coop_gc_var);
7303 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7304 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7307 /* convert the result */
7308 if (!sig->ret->byref) {
7309 MonoMarshalSpec *spec = mspecs [0];
7310 type = sig->ret->type;
7312 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7313 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7318 case MONO_TYPE_VOID:
7320 case MONO_TYPE_VALUETYPE:
7321 klass = sig->ret->data.klass;
7322 if (klass->enumtype) {
7323 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7326 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7340 case MONO_TYPE_FNPTR:
7341 case MONO_TYPE_STRING:
7342 case MONO_TYPE_CLASS:
7343 case MONO_TYPE_OBJECT:
7344 case MONO_TYPE_BOOLEAN:
7345 case MONO_TYPE_ARRAY:
7346 case MONO_TYPE_SZARRAY:
7347 case MONO_TYPE_CHAR:
7349 case MONO_TYPE_GENERICINST:
7350 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7352 case MONO_TYPE_TYPEDBYREF:
7354 g_warning ("return type 0x%02x unknown", sig->ret->type);
7355 g_assert_not_reached ();
7359 mono_mb_emit_stloc (mb, 3);
7363 * Need to call this after converting the result since MONO_VTADDR needs
7364 * to be adjacent to the call instruction.
7366 if (check_exceptions)
7367 emit_thread_interrupt_checkpoint (mb);
7369 /* we need to convert byref arguments back and free string arrays */
7370 for (i = 0; i < sig->param_count; i++) {
7371 MonoType *t = sig->params [i];
7372 MonoMarshalSpec *spec = mspecs [i + 1];
7374 argnum = i + param_shift;
7376 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7377 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7382 case MONO_TYPE_STRING:
7383 case MONO_TYPE_VALUETYPE:
7384 case MONO_TYPE_CLASS:
7385 case MONO_TYPE_OBJECT:
7386 case MONO_TYPE_SZARRAY:
7387 case MONO_TYPE_BOOLEAN:
7388 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7395 if (!MONO_TYPE_IS_VOID(sig->ret))
7396 mono_mb_emit_ldloc (mb, 3);
7398 mono_mb_emit_byte (mb, CEE_RET);
7400 #endif /* DISABLE_JIT */
7403 * mono_marshal_get_native_wrapper:
7404 * @method: The MonoMethod to wrap.
7405 * @check_exceptions: Whenever to check for pending exceptions
7407 * generates IL code for the pinvoke wrapper (the generated method
7408 * calls the unmanaged code in piinfo->addr)
7409 * The wrapper info for the wrapper is a WrapperInfo structure.
7412 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7414 MonoMethodSignature *sig, *csig;
7415 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7416 MonoMethodBuilder *mb;
7417 MonoMarshalSpec **mspecs;
7420 gboolean pinvoke = FALSE;
7423 const char *exc_class = "MissingMethodException";
7424 const char *exc_arg = NULL;
7427 g_assert (method != NULL);
7428 g_assert (mono_method_signature (method)->pinvoke);
7430 GHashTable **cache_ptr;
7433 if (check_exceptions)
7434 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7436 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7438 if (check_exceptions)
7439 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7441 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7444 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7446 if ((res = mono_marshal_find_in_cache (cache, method)))
7449 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7450 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7454 return mono_cominterop_get_native_wrapper (method);
7456 g_assert_not_reached ();
7460 sig = mono_method_signature (method);
7462 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7463 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7466 if (!piinfo->addr) {
7468 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7469 exc_arg = "Method contains unsupported native code";
7471 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7473 piinfo->addr = mono_lookup_internal_call (method);
7477 /* hack - redirect certain string constructors to CreateString */
7478 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7479 g_assert (!pinvoke);
7480 g_assert (method->string_ctor);
7481 g_assert (sig->hasthis);
7483 /* CreateString returns a value */
7484 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7485 csig->ret = &mono_defaults.string_class->byval_arg;
7489 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7490 if (!strcmp ("CreateString", res->name) &&
7491 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7494 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7495 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7497 /* create a wrapper to preserve .ctor in stack trace */
7498 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7501 mono_mb_emit_byte (mb, CEE_LDARG_0);
7502 for (i = 1; i <= csig->param_count; i++)
7503 mono_mb_emit_ldarg (mb, i);
7504 mono_mb_emit_managed_call (mb, res, NULL);
7505 mono_mb_emit_byte (mb, CEE_RET);
7508 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7509 info->d.string_ctor.method = method;
7511 /* use native_wrapper_cache because internal calls are looked up there */
7512 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7513 csig->param_count + 1, info, NULL);
7520 /* exception will be thrown */
7521 piinfo->addr = NULL;
7522 g_warning ("cannot find CreateString for .ctor");
7525 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7527 mb->method->save_lmf = 1;
7530 * In AOT mode and embedding scenarios, it is possible that the icall is not
7531 * registered in the runtime doing the AOT compilation.
7533 if (!piinfo->addr && !aot) {
7535 mono_mb_emit_exception (mb, exc_class, exc_arg);
7537 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7538 info->d.managed_to_native.method = method;
7540 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7542 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7543 csig->param_count + 16, info, NULL);
7549 /* internal calls: we simply push all arguments and call the method (no conversions) */
7550 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7552 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7554 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7556 /* hack - string constructors returns a value */
7557 if (method->string_ctor)
7558 csig->ret = &mono_defaults.string_class->byval_arg;
7565 * Add a null check since public icalls can be called with 'call' which
7566 * does no such check.
7568 mono_mb_emit_byte (mb, CEE_LDARG_0);
7569 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7570 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7571 mono_mb_patch_branch (mb, pos);
7573 mono_mb_emit_byte (mb, CEE_LDARG_0);
7576 for (i = 0; i < sig->param_count; i++)
7577 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7580 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7581 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7582 mono_mb_emit_calli (mb, csig);
7584 g_assert (piinfo->addr);
7585 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7587 if (check_exceptions)
7588 emit_thread_interrupt_checkpoint (mb);
7589 mono_mb_emit_byte (mb, CEE_RET);
7591 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7592 info->d.managed_to_native.method = method;
7594 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7596 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7605 g_assert (piinfo->addr);
7608 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7609 mono_method_get_marshal_info (method, mspecs);
7611 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7613 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7614 info->d.managed_to_native.method = method;
7616 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7618 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7623 for (i = sig->param_count; i >= 0; i--)
7625 mono_metadata_free_marshal_spec (mspecs [i]);
7629 /* mono_method_print_code (res); */
7635 * mono_marshal_get_native_func_wrapper:
7636 * @image: The image to use for memory allocation and for looking up custom marshallers.
7637 * @sig: The signature of the function
7638 * @func: The native function to wrap
7640 * Returns a wrapper method around native functions, similar to the pinvoke
7644 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7645 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7647 MonoMethodSignature *csig;
7649 SignaturePointerPair key, *new_key;
7650 MonoMethodBuilder *mb;
7659 // Generic types are not safe to place in MonoImage caches.
7660 g_assert (!sig->is_inflated);
7662 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7663 if ((res = mono_marshal_find_in_cache (cache, &key)))
7666 name = g_strdup_printf ("wrapper_native_%p", func);
7667 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7668 mb->method->save_lmf = 1;
7671 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7674 csig = mono_metadata_signature_dup_full (image, sig);
7677 new_key = g_new (SignaturePointerPair,1);
7678 new_key->sig = csig;
7679 new_key->pointer = func;
7681 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7687 mono_marshal_set_wrapper_info (res, NULL);
7693 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7697 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7699 MonoMethodSignature *sig, *csig;
7700 MonoMethodBuilder *mb;
7705 MonoMethodPInvoke mpiinfo;
7706 MonoMethodPInvoke *piinfo = &mpiinfo;
7707 MonoMarshalSpec **mspecs;
7708 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7709 MonoImage *image = invoke->klass->image;
7712 // FIXME: include UnmanagedFunctionPointerAttribute info
7715 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7717 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7719 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7722 memset (&mpiinfo, 0, sizeof (mpiinfo));
7723 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7725 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7726 mono_method_get_marshal_info (invoke, mspecs);
7727 /* Freed below so don't alloc from mempool */
7728 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7731 name = g_strdup_printf ("wrapper_aot_native");
7732 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7733 mb->method->save_lmf = 1;
7736 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7739 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7740 info->d.managed_to_native.method = invoke;
7742 g_assert (!sig->hasthis);
7743 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7745 res = mono_mb_create_and_cache_full (cache, invoke,
7746 mb, csig, csig->param_count + 16,
7750 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7752 mono_metadata_free_marshal_spec (mspecs [i]);
7760 * mono_marshal_emit_managed_wrapper:
7762 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7763 * the delegate which wraps the managed method to be called. For closed delegates,
7764 * it could have fewer parameters than the method it wraps.
7765 * THIS_LOC is the memory location where the target of the delegate is stored.
7768 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7771 MonoMethodSignature *sig, *csig;
7777 /* we first do all conversions */
7778 for (i = 0; i < sig->param_count; i ++) {
7779 MonoType *t = sig->params [i];
7782 case MONO_TYPE_OBJECT:
7783 case MONO_TYPE_CLASS:
7784 case MONO_TYPE_VALUETYPE:
7785 case MONO_TYPE_ARRAY:
7786 case MONO_TYPE_SZARRAY:
7787 case MONO_TYPE_STRING:
7788 case MONO_TYPE_BOOLEAN:
7789 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7793 if (!sig->ret->byref) {
7794 switch (sig->ret->type) {
7795 case MONO_TYPE_STRING:
7796 csig->ret = &mono_defaults.int_class->byval_arg;
7803 MonoMethodSignature *sig, *csig;
7804 MonoExceptionClause *clause;
7807 gboolean closed = FALSE;
7812 /* allocate local 0 (pointer) src_ptr */
7813 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7814 /* allocate local 1 (pointer) dst_ptr */
7815 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7816 /* allocate local 2 (boolean) delete_old */
7817 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7819 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7820 /* Closed delegate */
7821 g_assert (sig->param_count == invoke_sig->param_count + 1);
7823 /* Use a new signature without the first argument */
7824 sig = mono_metadata_signature_dup (sig);
7825 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7826 sig->param_count --;
7829 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7830 /* allocate local 3 to store the return value */
7831 mono_mb_add_local (mb, sig->ret);
7836 * mono_jit_attach ();
7840 * ret = method (...);
7842 * mono_jit_detach ();
7848 if (mono_threads_is_coop_enabled ()) {
7849 clause = g_new0 (MonoExceptionClause, 1);
7850 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7853 mono_mb_emit_icon (mb, 0);
7854 mono_mb_emit_stloc (mb, 2);
7856 if (mono_threads_is_coop_enabled ()) {
7858 clause->try_offset = mono_mb_get_label (mb);
7862 * Might need to attach the thread to the JIT or change the
7863 * domain for the callback.
7865 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7867 * mono_jit_attach ();
7869 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7870 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7872 /* <interrupt check> */
7873 emit_thread_interrupt_checkpoint (mb);
7875 /* we first do all conversions */
7876 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7877 for (i = 0; i < sig->param_count; i ++) {
7878 MonoType *t = sig->params [i];
7881 case MONO_TYPE_OBJECT:
7882 case MONO_TYPE_CLASS:
7883 case MONO_TYPE_VALUETYPE:
7884 case MONO_TYPE_ARRAY:
7885 case MONO_TYPE_SZARRAY:
7886 case MONO_TYPE_STRING:
7887 case MONO_TYPE_BOOLEAN:
7888 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7898 if (target_handle) {
7899 mono_mb_emit_icon (mb, (gint32)target_handle);
7900 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7903 g_assert_not_reached ();
7905 } else if (closed) {
7906 mono_mb_emit_icon (mb, (gint32)target_handle);
7907 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7910 for (i = 0; i < sig->param_count; i++) {
7911 MonoType *t = sig->params [i];
7913 if (tmp_locals [i]) {
7915 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7917 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7920 mono_mb_emit_ldarg (mb, i);
7923 /* ret = method (...) */
7924 mono_mb_emit_managed_call (mb, method, NULL);
7926 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7927 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7928 } else if (!sig->ret->byref) {
7929 switch (sig->ret->type) {
7930 case MONO_TYPE_VOID:
7932 case MONO_TYPE_BOOLEAN:
7935 case MONO_TYPE_CHAR:
7947 case MONO_TYPE_OBJECT:
7948 mono_mb_emit_stloc (mb, 3);
7950 case MONO_TYPE_STRING:
7951 csig->ret = &mono_defaults.int_class->byval_arg;
7952 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7954 case MONO_TYPE_VALUETYPE:
7955 case MONO_TYPE_CLASS:
7956 case MONO_TYPE_SZARRAY:
7957 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7960 g_warning ("return type 0x%02x unknown", sig->ret->type);
7961 g_assert_not_reached ();
7964 mono_mb_emit_stloc (mb, 3);
7967 /* Convert byref arguments back */
7968 for (i = 0; i < sig->param_count; i ++) {
7969 MonoType *t = sig->params [i];
7970 MonoMarshalSpec *spec = mspecs [i + 1];
7972 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7973 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7975 else if (t->byref) {
7977 case MONO_TYPE_CLASS:
7978 case MONO_TYPE_VALUETYPE:
7979 case MONO_TYPE_OBJECT:
7980 case MONO_TYPE_STRING:
7981 case MONO_TYPE_BOOLEAN:
7982 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7988 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7989 /* The [Out] information is encoded in the delegate signature */
7991 case MONO_TYPE_SZARRAY:
7992 case MONO_TYPE_CLASS:
7993 case MONO_TYPE_VALUETYPE:
7994 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7997 g_assert_not_reached ();
8002 if (mono_threads_is_coop_enabled ()) {
8003 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8006 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8007 clause->handler_offset = mono_mb_get_label (mb);
8011 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8013 * mono_jit_detach ();
8015 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8016 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8018 if (mono_threads_is_coop_enabled ()) {
8019 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8021 /* } [endfinally] */
8022 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8024 mono_mb_patch_branch (mb, leave_pos);
8028 if (m->retobj_var) {
8029 mono_mb_emit_ldloc (mb, m->retobj_var);
8030 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8031 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8034 if (!MONO_TYPE_IS_VOID(sig->ret))
8035 mono_mb_emit_ldloc (mb, 3);
8036 mono_mb_emit_byte (mb, CEE_RET);
8039 if (mono_threads_is_coop_enabled ()) {
8040 mono_mb_set_clauses (mb, 1, clause);
8049 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8051 MonoMethodSignature *sig;
8056 * Under windows, delegates passed to native code must use the STDCALL
8057 * calling convention.
8059 csig->call_convention = MONO_CALL_STDCALL;
8062 sig = mono_method_signature (method);
8064 /* Change default calling convention if needed */
8065 /* Why is this a modopt ? */
8066 if (sig->ret && sig->ret->num_mods) {
8067 for (i = 0; i < sig->ret->num_mods; ++i) {
8069 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8070 g_assert (mono_error_ok (&error));
8071 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8072 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8073 csig->call_convention = MONO_CALL_C;
8074 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8075 csig->call_convention = MONO_CALL_STDCALL;
8076 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8077 csig->call_convention = MONO_CALL_FASTCALL;
8078 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8079 csig->call_convention = MONO_CALL_THISCALL;
8086 * generates IL code to call managed methods from unmanaged code
8087 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8090 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8092 MonoMethodSignature *sig, *csig, *invoke_sig;
8093 MonoMethodBuilder *mb;
8094 MonoMethod *res, *invoke;
8095 MonoMarshalSpec **mspecs;
8096 MonoMethodPInvoke piinfo;
8099 EmitMarshalContext m;
8101 g_assert (method != NULL);
8102 g_assert (!mono_method_signature (method)->pinvoke);
8105 * FIXME: Should cache the method+delegate type pair, since the same method
8106 * could be called with different delegates, thus different marshalling
8109 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8111 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8114 invoke = mono_get_delegate_invoke (delegate_klass);
8115 invoke_sig = mono_method_signature (invoke);
8117 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8118 mono_method_get_marshal_info (invoke, mspecs);
8120 sig = mono_method_signature (method);
8122 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8124 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8125 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8127 /* we copy the signature, so that we can modify it */
8129 /* Need to free this later */
8130 csig = mono_metadata_signature_dup (invoke_sig);
8132 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8136 memset (&m, 0, sizeof (m));
8142 m.image = method->klass->image;
8144 mono_marshal_set_callconv_from_modopt (invoke, csig);
8146 /* The attribute is only available in Net 2.0 */
8147 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8148 MonoCustomAttrInfo *cinfo;
8149 MonoCustomAttrEntry *attr;
8152 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8153 * contents of the attribute without constructing it, as that might not be
8154 * possible when running in cross-compiling mode.
8156 cinfo = mono_custom_attrs_from_class (delegate_klass);
8159 for (i = 0; i < cinfo->num_attrs; ++i) {
8160 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8161 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8162 attr = &cinfo->attrs [i];
8168 MonoArray *typed_args, *named_args;
8169 CattrNamedArg *arginfo;
8173 MonoBoolean set_last_error = 0;
8176 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8177 g_assert (mono_error_ok (&error));
8178 g_assert (mono_array_length (typed_args) == 1);
8181 o = mono_array_get (typed_args, MonoObject*, 0);
8182 call_conv = *(gint32*)mono_object_unbox (o);
8185 for (i = 0; i < mono_array_length (named_args); ++i) {
8186 CattrNamedArg *narg = &arginfo [i];
8188 o = mono_array_get (named_args, MonoObject*, i);
8190 g_assert (narg->field);
8191 if (!strcmp (narg->field->name, "CharSet")) {
8192 charset = *(gint32*)mono_object_unbox (o);
8193 } else if (!strcmp (narg->field->name, "SetLastError")) {
8194 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8195 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8196 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8197 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8198 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8200 g_assert_not_reached ();
8206 memset (&piinfo, 0, sizeof (piinfo));
8208 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8210 csig->call_convention = call_conv - 1;
8213 if (cinfo && !cinfo->cached)
8214 mono_custom_attrs_free (cinfo);
8217 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8219 if (!target_handle) {
8222 // FIXME: Associate it with the method+delegate_klass pair
8223 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8224 info->d.native_to_managed.method = method;
8225 info->d.native_to_managed.klass = delegate_klass;
8227 res = mono_mb_create_and_cache_full (cache, method,
8228 mb, csig, sig->param_count + 16,
8234 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8238 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8240 mono_metadata_free_marshal_spec (mspecs [i]);
8243 /* mono_method_print_code (res); */
8249 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8253 MonoMethodSignature *sig;
8254 MonoMethodBuilder *mb;
8259 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8261 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8264 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8265 MonoMethodSignature *csig;
8266 MonoMarshalSpec **mspecs;
8267 EmitMarshalContext m;
8269 sig = mono_method_signature (method);
8270 g_assert (!sig->hasthis);
8272 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8273 mono_method_get_marshal_info (method, mspecs);
8275 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8276 csig = mono_metadata_signature_dup_full (image, sig);
8280 memset (&m, 0, sizeof (m));
8288 mono_marshal_set_callconv_from_modopt (method, csig);
8290 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8292 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8297 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8300 for (i = sig->param_count; i >= 0; i--)
8302 mono_metadata_free_marshal_spec (mspecs [i]);
8305 return mono_compile_method (method);
8308 sig = mono_method_signature (method);
8309 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8311 param_count = sig->param_count + sig->hasthis;
8313 for (i = 0; i < param_count; i++)
8314 mono_mb_emit_ldarg (mb, i);
8316 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8317 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8319 mono_mb_emit_op (mb, CEE_CALL, method);
8320 mono_mb_emit_byte (mb, CEE_RET);
8325 method = mono_mb_create (mb, sig, param_count, NULL);
8328 return mono_compile_method (method);
8334 * The code directly following this is the cache hit, value positive branch
8336 * This function takes a new method builder with 0 locals and adds two locals
8337 * to create multiple out-branches and the fall through state of having the object
8338 * on the stack after a cache miss
8341 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8342 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8343 MonoMethodBuilder *mb)
8347 /* allocate local 0 (pointer) obj_vtable */
8348 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8349 /* allocate local 1 (pointer) cached_vtable */
8350 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8353 mono_mb_emit_ldarg (mb, obj_arg_position);
8354 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8356 /*obj_vtable = obj->vtable;*/
8357 mono_mb_emit_ldarg (mb, obj_arg_position);
8358 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8359 mono_mb_emit_byte (mb, CEE_LDIND_I);
8360 mono_mb_emit_stloc (mb, 0);
8362 /* cached_vtable = *cache*/
8363 mono_mb_emit_ldarg (mb, cache_arg_position);
8364 mono_mb_emit_byte (mb, CEE_LDIND_I);
8365 mono_mb_emit_stloc (mb, 1);
8367 mono_mb_emit_ldloc (mb, 1);
8368 mono_mb_emit_byte (mb, CEE_LDC_I4);
8369 mono_mb_emit_i4 (mb, ~0x1);
8370 mono_mb_emit_byte (mb, CEE_CONV_I);
8371 mono_mb_emit_byte (mb, CEE_AND);
8372 mono_mb_emit_ldloc (mb, 0);
8373 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8374 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8376 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8377 mono_mb_emit_ldloc (mb, 1);
8378 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8379 mono_mb_emit_byte (mb, CEE_CONV_U);
8380 mono_mb_emit_byte (mb, CEE_AND);
8381 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8382 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8385 mono_mb_patch_branch (mb, cache_miss_pos);
8388 mono_mb_emit_ldarg (mb, obj_arg_position);
8389 mono_mb_emit_ldarg (mb, class_arg_position);
8390 mono_mb_emit_ldarg (mb, cache_arg_position);
8391 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8394 #endif /* DISABLE_JIT */
8397 * This does the equivalent of mono_object_castclass_with_cache.
8398 * The wrapper info for the wrapper is a WrapperInfo structure.
8401 mono_marshal_get_castclass_with_cache (void)
8403 static MonoMethod *cached;
8405 MonoMethodBuilder *mb;
8406 MonoMethodSignature *sig;
8407 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8410 const int obj_arg_position = 0;
8411 const int class_arg_position = 1;
8412 const int cache_arg_position = 2;
8417 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8418 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8419 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8420 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8421 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8422 sig->ret = &mono_defaults.object_class->byval_arg;
8426 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8427 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8428 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8431 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8432 mono_mb_emit_ldarg (mb, obj_arg_position);
8433 mono_mb_emit_byte (mb, CEE_RET);
8436 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8437 mono_mb_patch_branch (mb, invalid_cast_pos);
8438 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8441 mono_mb_patch_branch (mb, return_null_pos);
8442 mono_mb_emit_byte (mb, CEE_LDNULL);
8443 mono_mb_emit_byte (mb, CEE_RET);
8444 #endif /* DISABLE_JIT */
8446 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8447 res = mono_mb_create (mb, sig, 8, info);
8450 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8451 mono_free_method (res);
8452 mono_metadata_free_method_signature (sig);
8460 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8462 MonoObject *isinst = mono_object_isinst (obj, klass);
8464 #ifndef DISABLE_REMOTING
8465 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8469 uintptr_t cache_update = (uintptr_t)obj->vtable;
8471 cache_update = cache_update | 0x1;
8473 *cache = cache_update;
8479 * This does the equivalent of mono_object_isinst_with_cache.
8480 * The wrapper info for the wrapper is a WrapperInfo structure.
8483 mono_marshal_get_isinst_with_cache (void)
8485 static MonoMethod *cached;
8487 MonoMethodBuilder *mb;
8488 MonoMethodSignature *sig;
8489 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8492 const int obj_arg_position = 0;
8493 const int class_arg_position = 1;
8494 const int cache_arg_position = 2;
8499 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8500 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8502 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8504 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8506 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8507 sig->ret = &mono_defaults.object_class->byval_arg;
8511 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8512 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8513 // Return the object gotten via the slow path.
8514 mono_mb_emit_byte (mb, CEE_RET);
8517 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8518 mono_mb_patch_branch (mb, return_null_pos);
8519 mono_mb_emit_byte (mb, CEE_LDNULL);
8520 mono_mb_emit_byte (mb, CEE_RET);
8523 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8524 mono_mb_emit_ldarg (mb, 0);
8525 mono_mb_emit_byte (mb, CEE_RET);
8528 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8529 res = mono_mb_create (mb, sig, 8, info);
8532 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8533 mono_free_method (res);
8534 mono_metadata_free_method_signature (sig);
8542 * mono_marshal_get_isinst:
8543 * @klass: the type of the field
8545 * This method generates a function which can be used to check if an object is
8546 * an instance of the given type, icluding the case where the object is a proxy.
8547 * The generated function has the following signature:
8548 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8551 mono_marshal_get_isinst (MonoClass *klass)
8553 static MonoMethodSignature *isint_sig = NULL;
8557 int pos_was_ok, pos_end;
8558 #ifndef DISABLE_REMOTING
8559 int pos_end2, pos_failed;
8562 MonoMethodBuilder *mb;
8564 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8565 if ((res = mono_marshal_find_in_cache (cache, klass)))
8569 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8570 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8571 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8572 isint_sig->pinvoke = 0;
8575 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8576 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8579 mb->method->save_lmf = 1;
8582 /* check if the object is a proxy that needs special cast */
8583 mono_mb_emit_ldarg (mb, 0);
8584 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8585 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8587 /* The result of MONO_CISINST can be:
8588 0) the type check succeeded
8589 1) the type check did not succeed
8590 2) a CanCastTo call is needed */
8591 #ifndef DISABLE_REMOTING
8592 mono_mb_emit_byte (mb, CEE_DUP);
8593 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8595 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8596 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8598 /* get the real proxy from the transparent proxy*/
8600 mono_mb_emit_ldarg (mb, 0);
8601 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8602 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8606 mono_mb_patch_branch (mb, pos_failed);
8607 mono_mb_emit_byte (mb, CEE_LDNULL);
8608 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8612 mono_mb_patch_branch (mb, pos_was_ok);
8613 mono_mb_emit_byte (mb, CEE_POP);
8614 mono_mb_emit_ldarg (mb, 0);
8618 mono_mb_patch_branch (mb, pos_end);
8619 mono_mb_patch_branch (mb, pos_end2);
8620 mono_mb_emit_byte (mb, CEE_RET);
8622 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8626 mono_mb_emit_byte (mb, CEE_LDNULL);
8627 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8631 mono_mb_patch_branch (mb, pos_was_ok);
8632 mono_mb_emit_ldarg (mb, 0);
8636 mono_mb_patch_branch (mb, pos_end);
8637 mono_mb_emit_byte (mb, CEE_RET);
8638 #endif /* DISABLE_REMOTING */
8639 #endif /* DISABLE_JIT */
8641 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8642 info->d.proxy.klass = klass;
8643 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8650 * mono_marshal_get_castclass:
8651 * @klass: the type of the field
8653 * This method generates a function which can be used to cast an object to
8654 * an instance of the given type, icluding the case where the object is a proxy.
8655 * The generated function has the following signature:
8656 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8657 * The wrapper info for the wrapper is a WrapperInfo structure.
8660 mono_marshal_get_castclass (MonoClass *klass)
8662 static MonoMethodSignature *castclass_sig = NULL;
8665 #ifndef DISABLE_REMOTING
8666 int pos_was_ok, pos_was_ok2;
8669 MonoMethodBuilder *mb;
8672 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8673 if ((res = mono_marshal_find_in_cache (cache, klass)))
8676 if (!castclass_sig) {
8677 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8678 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8679 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8680 castclass_sig->pinvoke = 0;
8683 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8684 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8687 mb->method->save_lmf = 1;
8690 /* check if the object is a proxy that needs special cast */
8691 mono_mb_emit_ldarg (mb, 0);
8692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8693 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8695 /* The result of MONO_CCASTCLASS can be:
8696 0) the cast is valid
8697 1) cast of unknown proxy type
8698 or an exception if the cast is is invalid
8700 #ifndef DISABLE_REMOTING
8701 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8703 /* get the real proxy from the transparent proxy*/
8705 mono_mb_emit_ldarg (mb, 0);
8706 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8707 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8710 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8713 mono_mb_patch_branch (mb, pos_was_ok);
8714 mono_mb_patch_branch (mb, pos_was_ok2);
8716 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8717 mono_mb_emit_byte (mb, CEE_POP);
8718 #endif /* DISABLE_REMOTING */
8720 mono_mb_emit_ldarg (mb, 0);
8723 mono_mb_emit_byte (mb, CEE_RET);
8724 #endif /* DISABLE_JIT */
8726 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8728 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8736 * mono_marshal_get_struct_to_ptr:
8739 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8740 * The wrapper info for the wrapper is a WrapperInfo structure.
8743 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8745 MonoMethodBuilder *mb;
8746 static MonoMethod *stoptr = NULL;
8750 g_assert (klass != NULL);
8752 mono_marshal_load_type_info (klass);
8754 if (klass->marshal_info->str_to_ptr)
8755 return klass->marshal_info->str_to_ptr;
8758 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8761 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8764 if (klass->blittable) {
8765 mono_mb_emit_byte (mb, CEE_LDARG_1);
8766 mono_mb_emit_byte (mb, CEE_LDARG_0);
8767 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8768 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8769 mono_mb_emit_byte (mb, CEE_PREFIX1);
8770 mono_mb_emit_byte (mb, CEE_CPBLK);
8773 /* allocate local 0 (pointer) src_ptr */
8774 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8775 /* allocate local 1 (pointer) dst_ptr */
8776 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8777 /* allocate local 2 (boolean) delete_old */
8778 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8779 mono_mb_emit_byte (mb, CEE_LDARG_2);
8780 mono_mb_emit_stloc (mb, 2);
8782 /* initialize src_ptr to point to the start of object data */
8783 mono_mb_emit_byte (mb, CEE_LDARG_0);
8784 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8785 mono_mb_emit_stloc (mb, 0);
8787 /* initialize dst_ptr */
8788 mono_mb_emit_byte (mb, CEE_LDARG_1);
8789 mono_mb_emit_stloc (mb, 1);
8791 emit_struct_conv (mb, klass, FALSE);
8794 mono_mb_emit_byte (mb, CEE_RET);
8796 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8797 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8800 mono_marshal_lock ();
8801 if (!klass->marshal_info->str_to_ptr)
8802 klass->marshal_info->str_to_ptr = res;
8804 res = klass->marshal_info->str_to_ptr;
8805 mono_marshal_unlock ();
8810 * mono_marshal_get_ptr_to_struct:
8813 * generates IL code for PtrToStructure (IntPtr src, object structure)
8814 * The wrapper info for the wrapper is a WrapperInfo structure.
8817 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8819 MonoMethodBuilder *mb;
8820 static MonoMethodSignature *ptostr = NULL;
8824 g_assert (klass != NULL);
8826 mono_marshal_load_type_info (klass);
8828 if (klass->marshal_info->ptr_to_str)
8829 return klass->marshal_info->ptr_to_str;
8832 MonoMethodSignature *sig;
8834 /* Create the signature corresponding to
8835 static void PtrToStructure (IntPtr ptr, object structure);
8836 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8837 sig = mono_create_icall_signature ("void ptr object");
8838 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8840 mono_memory_barrier ();
8844 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8847 if (klass->blittable) {
8848 mono_mb_emit_byte (mb, CEE_LDARG_1);
8849 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8850 mono_mb_emit_byte (mb, CEE_LDARG_0);
8851 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8852 mono_mb_emit_byte (mb, CEE_PREFIX1);
8853 mono_mb_emit_byte (mb, CEE_CPBLK);
8856 /* allocate local 0 (pointer) src_ptr */
8857 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8858 /* allocate local 1 (pointer) dst_ptr */
8859 mono_mb_add_local (mb, &klass->this_arg);
8861 /* initialize src_ptr to point to the start of object data */
8862 mono_mb_emit_byte (mb, CEE_LDARG_0);
8863 mono_mb_emit_stloc (mb, 0);
8865 /* initialize dst_ptr */
8866 mono_mb_emit_byte (mb, CEE_LDARG_1);
8867 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8868 mono_mb_emit_stloc (mb, 1);
8870 emit_struct_conv (mb, klass, TRUE);
8873 mono_mb_emit_byte (mb, CEE_RET);
8875 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8876 res = mono_mb_create (mb, ptostr, 0, info);
8879 mono_marshal_lock ();
8880 if (!klass->marshal_info->ptr_to_str)
8881 klass->marshal_info->ptr_to_str = res;
8883 res = klass->marshal_info->ptr_to_str;
8884 mono_marshal_unlock ();
8889 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8890 * This is used to avoid infinite recursion since it is hard to determine where to
8891 * replace a method with its synchronized wrapper, and where not.
8892 * The runtime should execute METHOD instead of the wrapper.
8893 * The wrapper info for the wrapper is a WrapperInfo structure.
8896 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8898 MonoMethodBuilder *mb;
8900 MonoMethodSignature *sig;
8902 MonoGenericContext *ctx = NULL;
8903 MonoGenericContainer *container = NULL;
8905 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8906 ctx = &((MonoMethodInflated*)method)->context;
8907 method = ((MonoMethodInflated*)method)->declaring;
8908 container = mono_method_get_generic_container (method);
8910 container = method->klass->generic_container;
8911 g_assert (container);
8914 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8916 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8917 mono_mb_emit_byte (mb, CEE_RET);
8919 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8921 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8922 info->d.synchronized_inner.method = method;
8923 res = mono_mb_create (mb, sig, 0, info);
8927 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8928 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8934 * generates IL code for the synchronized wrapper: the generated method
8935 * calls METHOD while locking 'this' or the parent type.
8938 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8940 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8941 MonoMethodSignature *sig;
8942 MonoExceptionClause *clause;
8943 MonoMethodBuilder *mb;
8947 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8948 MonoGenericContext *ctx = NULL;
8949 MonoMethod *orig_method = NULL;
8950 MonoGenericContainer *container = NULL;
8954 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8957 /* FIXME: Support generic methods too */
8958 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8959 orig_method = method;
8960 ctx = &((MonoMethodInflated*)method)->context;
8961 method = ((MonoMethodInflated*)method)->declaring;
8962 container = mono_method_get_generic_container (method);
8964 container = method->klass->generic_container;
8965 g_assert (container);
8972 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8973 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8977 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8978 if ((res = mono_marshal_find_in_cache (cache, method)))
8982 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8985 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8987 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8988 info->d.synchronized.method = method;
8991 mb->skip_visibility = 1;
8993 if (!MONO_TYPE_IS_VOID (sig->ret))
8994 ret_local = mono_mb_add_local (mb, sig->ret);
8997 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8998 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9000 /* This will throw the type load exception when the wrapper is compiled */
9001 mono_mb_emit_byte (mb, CEE_LDNULL);
9002 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9003 mono_mb_emit_byte (mb, CEE_POP);
9005 if (!MONO_TYPE_IS_VOID (sig->ret))
9006 mono_mb_emit_ldloc (mb, ret_local);
9007 mono_mb_emit_byte (mb, CEE_RET);
9010 res = mono_mb_create_and_cache_full (cache, method,
9011 mb, sig, sig->param_count + 16, info, NULL);
9019 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9020 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9022 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9023 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9026 mono_marshal_lock ();
9028 if (!enter_method) {
9029 MonoMethodDesc *desc;
9031 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9032 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9033 g_assert (enter_method);
9034 mono_method_desc_free (desc);
9036 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9037 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9038 g_assert (exit_method);
9039 mono_method_desc_free (desc);
9041 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9042 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9043 g_assert (gettypefromhandle_method);
9044 mono_method_desc_free (desc);
9047 mono_marshal_unlock ();
9050 /* Push this or the type object */
9051 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9052 /* We have special handling for this in the JIT */
9053 int index = mono_mb_add_data (mb, method->klass);
9054 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9055 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9056 mono_mb_emit_i4 (mb, index);
9058 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9061 mono_mb_emit_ldarg (mb, 0);
9062 mono_mb_emit_stloc (mb, this_local);
9064 /* Call Monitor::Enter() */
9065 mono_mb_emit_ldloc (mb, this_local);
9066 mono_mb_emit_ldloc_addr (mb, taken_local);
9067 mono_mb_emit_managed_call (mb, enter_method, NULL);
9069 clause->try_offset = mono_mb_get_label (mb);
9071 /* Call the method */
9073 mono_mb_emit_ldarg (mb, 0);
9074 for (i = 0; i < sig->param_count; i++)
9075 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9079 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9080 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9082 mono_mb_emit_managed_call (mb, method, NULL);
9085 if (!MONO_TYPE_IS_VOID (sig->ret))
9086 mono_mb_emit_stloc (mb, ret_local);
9088 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9090 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9091 clause->handler_offset = mono_mb_get_label (mb);
9093 /* Call Monitor::Exit() if needed */
9094 mono_mb_emit_ldloc (mb, taken_local);
9095 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9096 mono_mb_emit_ldloc (mb, this_local);
9097 mono_mb_emit_managed_call (mb, exit_method, NULL);
9098 mono_mb_patch_branch (mb, pos2);
9099 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9101 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9103 mono_mb_patch_branch (mb, pos);
9104 if (!MONO_TYPE_IS_VOID (sig->ret))
9105 mono_mb_emit_ldloc (mb, ret_local);
9106 mono_mb_emit_byte (mb, CEE_RET);
9108 mono_mb_set_clauses (mb, 1, clause);
9113 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9114 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9116 res = mono_mb_create_and_cache_full (cache, method,
9117 mb, sig, sig->param_count + 16, info, NULL);
9126 * the returned method calls 'method' unboxing the this argument
9129 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9131 MonoMethodSignature *sig = mono_method_signature (method);
9133 MonoMethodBuilder *mb;
9138 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9140 if ((res = mono_marshal_find_in_cache (cache, method)))
9143 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9145 g_assert (sig->hasthis);
9148 mono_mb_emit_ldarg (mb, 0);
9149 mono_mb_emit_icon (mb, sizeof (MonoObject));
9150 mono_mb_emit_byte (mb, CEE_ADD);
9151 for (i = 0; i < sig->param_count; ++i)
9152 mono_mb_emit_ldarg (mb, i + 1);
9153 mono_mb_emit_managed_call (mb, method, NULL);
9154 mono_mb_emit_byte (mb, CEE_RET);
9157 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9158 info->d.unbox.method = method;
9160 res = mono_mb_create_and_cache_full (cache, method,
9161 mb, sig, sig->param_count + 16, info, NULL);
9164 /* mono_method_print_code (res); */
9170 STELEMREF_OBJECT, /*no check at all*/
9171 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9172 STELEMREF_CLASS, /*only the klass->parents check*/
9173 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9174 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9175 STELEMREF_KIND_COUNT
9178 static const char *strelemref_wrapper_name[] = {
9179 "object", "sealed_class", "class", "interface", "complex"
9183 is_monomorphic_array (MonoClass *klass)
9185 MonoClass *element_class;
9186 if (klass->rank != 1)
9189 element_class = klass->element_class;
9190 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9194 get_virtual_stelemref_kind (MonoClass *element_class)
9196 if (element_class == mono_defaults.object_class)
9197 return STELEMREF_OBJECT;
9198 if (is_monomorphic_array (element_class))
9199 return STELEMREF_SEALED_CLASS;
9200 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9201 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9202 #ifdef COMPRESSED_INTERFACE_BITMAP
9203 return STELEMREF_COMPLEX;
9205 return STELEMREF_INTERFACE;
9207 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9208 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9209 return STELEMREF_COMPLEX;
9210 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9211 return STELEMREF_SEALED_CLASS;
9212 return STELEMREF_CLASS;
9218 load_array_element_address (MonoMethodBuilder *mb)
9220 mono_mb_emit_ldarg (mb, 0);
9221 mono_mb_emit_ldarg (mb, 1);
9222 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9226 load_array_class (MonoMethodBuilder *mb, int aklass)
9228 mono_mb_emit_ldarg (mb, 0);
9229 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9230 mono_mb_emit_byte (mb, CEE_LDIND_I);
9231 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9232 mono_mb_emit_byte (mb, CEE_LDIND_I);
9233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9234 mono_mb_emit_byte (mb, CEE_LDIND_I);
9235 mono_mb_emit_stloc (mb, aklass);
9239 load_value_class (MonoMethodBuilder *mb, int vklass)
9241 mono_mb_emit_ldarg (mb, 2);
9242 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9243 mono_mb_emit_byte (mb, CEE_LDIND_I);
9244 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9245 mono_mb_emit_byte (mb, CEE_LDIND_I);
9246 mono_mb_emit_stloc (mb, vklass);
9252 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9254 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9255 printf ("slow vstore of %s\n", name);
9261 * The wrapper info for the wrapper is a WrapperInfo structure.
9264 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9265 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9266 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9267 * - Add a case for arrays of arrays.
9270 get_virtual_stelemref_wrapper (int kind)
9272 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9273 static MonoMethodSignature *signature;
9274 MonoMethodBuilder *mb;
9277 const char *param_names [16];
9279 int aklass, vklass, vtable, uiid;
9280 int array_slot_addr;
9283 if (cached_methods [kind])
9284 return cached_methods [kind];
9286 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9287 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9291 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9293 /* void this::stelemref (size_t idx, void* value) */
9294 sig->ret = &mono_defaults.void_class->byval_arg;
9295 sig->hasthis = TRUE;
9296 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9297 sig->params [1] = &mono_defaults.object_class->byval_arg;
9302 param_names [0] = "index";
9303 param_names [1] = "value";
9304 mono_mb_set_param_names (mb, param_names);
9306 /*For now simply call plain old stelemref*/
9308 case STELEMREF_OBJECT:
9309 /* ldelema (implicit bound check) */
9310 load_array_element_address (mb);
9312 mono_mb_emit_ldarg (mb, 2);
9313 mono_mb_emit_byte (mb, CEE_STIND_REF);
9314 mono_mb_emit_byte (mb, CEE_RET);
9317 case STELEMREF_COMPLEX:
9319 <ldelema (bound check)>
9322 if (!mono_object_isinst (value, aklass))
9326 *array_slot_addr = value;
9329 throw new ArrayTypeMismatchException ();
9332 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9333 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9337 /*Use this to debug/record stores that are going thru the slow path*/
9338 MonoMethodSignature *csig;
9339 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9340 csig->ret = &mono_defaults.void_class->byval_arg;
9341 csig->params [0] = &mono_defaults.object_class->byval_arg;
9342 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9343 csig->params [2] = &mono_defaults.object_class->byval_arg;
9344 mono_mb_emit_ldarg (mb, 0);
9345 mono_mb_emit_ldarg (mb, 1);
9346 mono_mb_emit_ldarg (mb, 2);
9347 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9351 /* ldelema (implicit bound check) */
9352 load_array_element_address (mb);
9353 mono_mb_emit_stloc (mb, array_slot_addr);
9355 /* if (!value) goto do_store */
9356 mono_mb_emit_ldarg (mb, 2);
9357 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9359 /* aklass = array->vtable->klass->element_class */
9360 load_array_class (mb, aklass);
9362 /*if (mono_object_isinst (value, aklass)) */
9363 mono_mb_emit_ldarg (mb, 2);
9364 mono_mb_emit_ldloc (mb, aklass);
9365 mono_mb_emit_icall (mb, mono_object_isinst);
9366 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9369 mono_mb_patch_branch (mb, b1);
9370 mono_mb_emit_ldloc (mb, array_slot_addr);
9371 mono_mb_emit_ldarg (mb, 2);
9372 mono_mb_emit_byte (mb, CEE_STIND_REF);
9373 mono_mb_emit_byte (mb, CEE_RET);
9376 mono_mb_patch_branch (mb, b2);
9378 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9381 case STELEMREF_SEALED_CLASS:
9383 <ldelema (bound check)>
9387 aklass = array->vtable->klass->element_class;
9388 vklass = value->vtable->klass;
9390 if (vklass != aklass)
9394 *array_slot_addr = value;
9397 throw new ArrayTypeMismatchException ();
9399 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9400 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9401 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9404 /* ldelema (implicit bound check) */
9405 load_array_element_address (mb);
9406 mono_mb_emit_stloc (mb, array_slot_addr);
9408 /* if (!value) goto do_store */
9409 mono_mb_emit_ldarg (mb, 2);
9410 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9412 /* aklass = array->vtable->klass->element_class */
9413 load_array_class (mb, aklass);
9415 /* vklass = value->vtable->klass */
9416 load_value_class (mb, vklass);
9418 /*if (vklass != aklass) goto do_exception; */
9419 mono_mb_emit_ldloc (mb, aklass);
9420 mono_mb_emit_ldloc (mb, vklass);
9421 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9424 mono_mb_patch_branch (mb, b1);
9425 mono_mb_emit_ldloc (mb, array_slot_addr);
9426 mono_mb_emit_ldarg (mb, 2);
9427 mono_mb_emit_byte (mb, CEE_STIND_REF);
9428 mono_mb_emit_byte (mb, CEE_RET);
9431 mono_mb_patch_branch (mb, b2);
9432 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9435 case STELEMREF_CLASS:
9438 <ldelema (bound check)>
9442 aklass = array->vtable->klass->element_class;
9443 vklass = value->vtable->klass;
9445 if (vklass->idepth < aklass->idepth)
9448 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9452 *array_slot_addr = value;
9456 throw new ArrayTypeMismatchException ();
9458 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9459 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9460 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9462 /* ldelema (implicit bound check) */
9463 load_array_element_address (mb);
9464 mono_mb_emit_stloc (mb, array_slot_addr);
9466 /* if (!value) goto do_store */
9467 mono_mb_emit_ldarg (mb, 2);
9468 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9470 /* aklass = array->vtable->klass->element_class */
9471 load_array_class (mb, aklass);
9473 /* vklass = value->vtable->klass */
9474 load_value_class (mb, vklass);
9476 /*if (mono_object_isinst (value, aklass)) */
9477 mono_mb_emit_ldarg (mb, 2);
9478 mono_mb_emit_ldloc (mb, aklass);
9479 mono_mb_emit_icall (mb, mono_object_isinst);
9480 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9482 /* if (vklass->idepth < aklass->idepth) goto failue */
9483 mono_mb_emit_ldloc (mb, vklass);
9484 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9485 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9487 mono_mb_emit_ldloc (mb, aklass);
9488 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9489 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9491 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9493 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9494 mono_mb_emit_ldloc (mb, vklass);
9495 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9496 mono_mb_emit_byte (mb, CEE_LDIND_I);
9498 mono_mb_emit_ldloc (mb, aklass);
9499 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9500 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9501 mono_mb_emit_icon (mb, 1);
9502 mono_mb_emit_byte (mb, CEE_SUB);
9503 mono_mb_emit_icon (mb, sizeof (void*));
9504 mono_mb_emit_byte (mb, CEE_MUL);
9505 mono_mb_emit_byte (mb, CEE_ADD);
9506 mono_mb_emit_byte (mb, CEE_LDIND_I);
9508 mono_mb_emit_ldloc (mb, aklass);
9509 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9512 mono_mb_patch_branch (mb, b1);
9513 mono_mb_emit_ldloc (mb, array_slot_addr);
9514 mono_mb_emit_ldarg (mb, 2);
9515 mono_mb_emit_byte (mb, CEE_STIND_REF);
9516 mono_mb_emit_byte (mb, CEE_RET);
9519 mono_mb_patch_branch (mb, b2);
9520 mono_mb_patch_branch (mb, b3);
9522 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9525 case STELEMREF_INTERFACE:
9532 klass = array->obj.vtable->klass->element_class;
9534 uiid = klass->interface_id;
9535 if (uiid > vt->max_interface_id)
9537 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9540 mono_array_setref (array, index, value);
9543 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9545 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9546 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9547 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9548 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9550 /* ldelema (implicit bound check) */
9551 load_array_element_address (mb);
9552 mono_mb_emit_stloc (mb, array_slot_addr);
9554 /* if (!value) goto do_store */
9555 mono_mb_emit_ldarg (mb, 2);
9556 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9558 /* klass = array->vtable->klass->element_class */
9559 load_array_class (mb, aklass);
9561 /* vt = value->vtable */
9562 mono_mb_emit_ldarg (mb, 2);
9563 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9564 mono_mb_emit_byte (mb, CEE_LDIND_I);
9565 mono_mb_emit_stloc (mb, vtable);
9567 /* uiid = klass->interface_id; */
9568 mono_mb_emit_ldloc (mb, aklass);
9569 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9570 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9571 mono_mb_emit_stloc (mb, uiid);
9573 /*if (uiid > vt->max_interface_id)*/
9574 mono_mb_emit_ldloc (mb, uiid);
9575 mono_mb_emit_ldloc (mb, vtable);
9576 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9577 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9578 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9580 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9582 /*vt->interface_bitmap*/
9583 mono_mb_emit_ldloc (mb, vtable);
9584 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9585 mono_mb_emit_byte (mb, CEE_LDIND_I);
9588 mono_mb_emit_ldloc (mb, uiid);
9589 mono_mb_emit_icon (mb, 3);
9590 mono_mb_emit_byte (mb, CEE_SHR_UN);
9592 /*vt->interface_bitmap [(uiid) >> 3]*/
9593 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9594 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9596 /*(1 << ((uiid)&7)))*/
9597 mono_mb_emit_icon (mb, 1);
9598 mono_mb_emit_ldloc (mb, uiid);
9599 mono_mb_emit_icon (mb, 7);
9600 mono_mb_emit_byte (mb, CEE_AND);
9601 mono_mb_emit_byte (mb, CEE_SHL);
9603 /*bitwise and the whole thing*/
9604 mono_mb_emit_byte (mb, CEE_AND);
9605 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9608 mono_mb_patch_branch (mb, b1);
9609 mono_mb_emit_ldloc (mb, array_slot_addr);
9610 mono_mb_emit_ldarg (mb, 2);
9611 mono_mb_emit_byte (mb, CEE_STIND_REF);
9612 mono_mb_emit_byte (mb, CEE_RET);
9615 mono_mb_patch_branch (mb, b2);
9616 mono_mb_patch_branch (mb, b3);
9617 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9621 mono_mb_emit_ldarg (mb, 0);
9622 mono_mb_emit_ldarg (mb, 1);
9623 mono_mb_emit_ldarg (mb, 2);
9624 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9625 mono_mb_emit_byte (mb, CEE_RET);
9628 #endif /* DISABLE_JIT */
9629 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9630 info->d.virtual_stelemref.kind = kind;
9631 res = mono_mb_create (mb, signature, 4, info);
9632 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9634 mono_marshal_lock ();
9635 if (!cached_methods [kind]) {
9636 cached_methods [kind] = res;
9637 mono_marshal_unlock ();
9639 mono_marshal_unlock ();
9640 mono_free_method (res);
9644 return cached_methods [kind];
9648 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9652 g_assert (array_class->rank == 1);
9653 kind = get_virtual_stelemref_kind (array_class->element_class);
9655 return get_virtual_stelemref_wrapper (kind);
9659 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9664 *nwrappers = STELEMREF_KIND_COUNT;
9665 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9666 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9667 res [i] = get_virtual_stelemref_wrapper (i);
9672 * The wrapper info for the wrapper is a WrapperInfo structure.
9675 mono_marshal_get_stelemref (void)
9677 static MonoMethod* ret = NULL;
9678 MonoMethodSignature *sig;
9679 MonoMethodBuilder *mb;
9682 guint32 b1, b2, b3, b4;
9685 int array_slot_addr;
9690 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9693 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9695 /* void stelemref (void* array, int idx, void* value) */
9696 sig->ret = &mono_defaults.void_class->byval_arg;
9697 sig->params [0] = &mono_defaults.object_class->byval_arg;
9698 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9699 sig->params [2] = &mono_defaults.object_class->byval_arg;
9702 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9703 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9704 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9708 <ldelema (bound check)>
9712 aklass = array->vtable->klass->element_class;
9713 vklass = value->vtable->klass;
9715 if (vklass->idepth < aklass->idepth)
9718 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9722 *array_slot_addr = value;
9726 if (mono_object_isinst (value, aklass))
9729 throw new ArrayTypeMismatchException ();
9732 /* ldelema (implicit bound check) */
9733 mono_mb_emit_ldarg (mb, 0);
9734 mono_mb_emit_ldarg (mb, 1);
9735 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9736 mono_mb_emit_stloc (mb, array_slot_addr);
9738 /* if (!value) goto do_store */
9739 mono_mb_emit_ldarg (mb, 2);
9740 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9742 /* aklass = array->vtable->klass->element_class */
9743 mono_mb_emit_ldarg (mb, 0);
9744 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9745 mono_mb_emit_byte (mb, CEE_LDIND_I);
9746 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9747 mono_mb_emit_byte (mb, CEE_LDIND_I);
9748 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9749 mono_mb_emit_byte (mb, CEE_LDIND_I);
9750 mono_mb_emit_stloc (mb, aklass);
9752 /* vklass = value->vtable->klass */
9753 mono_mb_emit_ldarg (mb, 2);
9754 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9755 mono_mb_emit_byte (mb, CEE_LDIND_I);
9756 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9757 mono_mb_emit_byte (mb, CEE_LDIND_I);
9758 mono_mb_emit_stloc (mb, vklass);
9760 /* if (vklass->idepth < aklass->idepth) goto failue */
9761 mono_mb_emit_ldloc (mb, vklass);
9762 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9763 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9765 mono_mb_emit_ldloc (mb, aklass);
9766 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9767 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9769 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9771 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9772 mono_mb_emit_ldloc (mb, vklass);
9773 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9774 mono_mb_emit_byte (mb, CEE_LDIND_I);
9776 mono_mb_emit_ldloc (mb, aklass);
9777 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9778 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9779 mono_mb_emit_icon (mb, 1);
9780 mono_mb_emit_byte (mb, CEE_SUB);
9781 mono_mb_emit_icon (mb, sizeof (void*));
9782 mono_mb_emit_byte (mb, CEE_MUL);
9783 mono_mb_emit_byte (mb, CEE_ADD);
9784 mono_mb_emit_byte (mb, CEE_LDIND_I);
9786 mono_mb_emit_ldloc (mb, aklass);
9788 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9790 copy_pos = mono_mb_get_label (mb);
9792 mono_mb_patch_branch (mb, b1);
9793 mono_mb_emit_ldloc (mb, array_slot_addr);
9794 mono_mb_emit_ldarg (mb, 2);
9795 mono_mb_emit_byte (mb, CEE_STIND_REF);
9797 mono_mb_emit_byte (mb, CEE_RET);
9800 mono_mb_patch_branch (mb, b2);
9801 mono_mb_patch_branch (mb, b3);
9803 mono_mb_emit_ldarg (mb, 2);
9804 mono_mb_emit_ldloc (mb, aklass);
9805 mono_mb_emit_icall (mb, mono_object_isinst);
9807 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9808 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9809 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9811 mono_mb_emit_byte (mb, CEE_RET);
9813 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9814 ret = mono_mb_create (mb, sig, 4, info);
9821 * mono_marshal_get_gsharedvt_in_wrapper:
9823 * This wrapper handles calls from normal code to gsharedvt code.
9825 * The wrapper info for the wrapper is a WrapperInfo structure.
9828 mono_marshal_get_gsharedvt_in_wrapper (void)
9830 static MonoMethod* ret = NULL;
9831 MonoMethodSignature *sig;
9832 MonoMethodBuilder *mb;
9838 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9840 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9841 sig->ret = &mono_defaults.void_class->byval_arg;
9845 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9847 mono_mb_emit_byte (mb, CEE_RET);
9849 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9850 ret = mono_mb_create (mb, sig, 4, info);
9857 * mono_marshal_get_gsharedvt_out_wrapper:
9859 * This wrapper handles calls from gsharedvt code to normal code.
9861 * The wrapper info for the wrapper is a WrapperInfo structure.
9864 mono_marshal_get_gsharedvt_out_wrapper (void)
9866 static MonoMethod* ret = NULL;
9867 MonoMethodSignature *sig;
9868 MonoMethodBuilder *mb;
9874 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9876 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9877 sig->ret = &mono_defaults.void_class->byval_arg;
9881 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9883 mono_mb_emit_byte (mb, CEE_RET);
9885 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9886 ret = mono_mb_create (mb, sig, 4, info);
9898 /* LOCKING: vars accessed under the marshal lock */
9899 static ArrayElemAddr *elem_addr_cache = NULL;
9900 static int elem_addr_cache_size = 0;
9901 static int elem_addr_cache_next = 0;
9904 * mono_marshal_get_array_address:
9905 * @rank: rank of the array type
9906 * @elem_size: size in bytes of an element of an array.
9908 * Returns a MonoMethod that implements the code to get the address
9909 * of an element in a multi-dimenasional array of @rank dimensions.
9910 * The returned method takes an array as the first argument and then
9911 * @rank indexes for the @rank dimensions.
9912 * If ELEM_SIZE is 0, read the array size from the array object.
9915 mono_marshal_get_array_address (int rank, int elem_size)
9918 MonoMethodBuilder *mb;
9919 MonoMethodSignature *sig;
9922 int i, bounds, ind, realidx;
9923 int branch_pos, *branch_positions;
9927 mono_marshal_lock ();
9928 for (i = 0; i < elem_addr_cache_next; ++i) {
9929 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9930 ret = elem_addr_cache [i].method;
9934 mono_marshal_unlock ();
9938 branch_positions = g_new0 (int, rank);
9940 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9942 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9943 sig->ret = &mono_defaults.int_class->byval_arg;
9944 sig->params [0] = &mono_defaults.object_class->byval_arg;
9945 for (i = 0; i < rank; ++i) {
9946 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9949 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9950 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9954 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9955 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9956 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9958 /* bounds = array->bounds; */
9959 mono_mb_emit_ldarg (mb, 0);
9960 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9961 mono_mb_emit_byte (mb, CEE_LDIND_I);
9962 mono_mb_emit_stloc (mb, bounds);
9964 /* ind is the overall element index, realidx is the partial index in a single dimension */
9965 /* ind = idx0 - bounds [0].lower_bound */
9966 mono_mb_emit_ldarg (mb, 1);
9967 mono_mb_emit_ldloc (mb, bounds);
9968 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9969 mono_mb_emit_byte (mb, CEE_ADD);
9970 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9971 mono_mb_emit_byte (mb, CEE_SUB);
9972 mono_mb_emit_stloc (mb, ind);
9973 /* if (ind >= bounds [0].length) goto exeception; */
9974 mono_mb_emit_ldloc (mb, ind);
9975 mono_mb_emit_ldloc (mb, bounds);
9976 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9977 mono_mb_emit_byte (mb, CEE_ADD);
9978 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9979 /* note that we use unsigned comparison */
9980 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9982 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9983 * We could also decide to ignore the passed elem_size and get it
9984 * from the array object, to reduce the number of methods we generate:
9985 * the additional cost is 3 memory loads and a non-immediate mul.
9987 for (i = 1; i < rank; ++i) {
9988 /* realidx = idxi - bounds [i].lower_bound */
9989 mono_mb_emit_ldarg (mb, 1 + i);
9990 mono_mb_emit_ldloc (mb, bounds);
9991 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9992 mono_mb_emit_byte (mb, CEE_ADD);
9993 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9994 mono_mb_emit_byte (mb, CEE_SUB);
9995 mono_mb_emit_stloc (mb, realidx);
9996 /* if (realidx >= bounds [i].length) goto exeception; */
9997 mono_mb_emit_ldloc (mb, realidx);
9998 mono_mb_emit_ldloc (mb, bounds);
9999 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10000 mono_mb_emit_byte (mb, CEE_ADD);
10001 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10002 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10003 /* ind = ind * bounds [i].length + realidx */
10004 mono_mb_emit_ldloc (mb, ind);
10005 mono_mb_emit_ldloc (mb, bounds);
10006 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10007 mono_mb_emit_byte (mb, CEE_ADD);
10008 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10009 mono_mb_emit_byte (mb, CEE_MUL);
10010 mono_mb_emit_ldloc (mb, realidx);
10011 mono_mb_emit_byte (mb, CEE_ADD);
10012 mono_mb_emit_stloc (mb, ind);
10015 /* return array->vector + ind * element_size */
10016 mono_mb_emit_ldarg (mb, 0);
10017 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10018 mono_mb_emit_ldloc (mb, ind);
10020 mono_mb_emit_icon (mb, elem_size);
10022 /* Load arr->vtable->klass->sizes.element_class */
10023 mono_mb_emit_ldarg (mb, 0);
10024 mono_mb_emit_byte (mb, CEE_CONV_I);
10025 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10026 mono_mb_emit_byte (mb, CEE_ADD);
10027 mono_mb_emit_byte (mb, CEE_LDIND_I);
10028 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10029 mono_mb_emit_byte (mb, CEE_ADD);
10030 mono_mb_emit_byte (mb, CEE_LDIND_I);
10031 /* sizes is an union, so this reads sizes.element_size */
10032 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10033 mono_mb_emit_byte (mb, CEE_ADD);
10034 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10036 mono_mb_emit_byte (mb, CEE_MUL);
10037 mono_mb_emit_byte (mb, CEE_ADD);
10038 mono_mb_emit_byte (mb, CEE_RET);
10040 /* patch the branches to get here and throw */
10041 for (i = 1; i < rank; ++i) {
10042 mono_mb_patch_branch (mb, branch_positions [i]);
10044 mono_mb_patch_branch (mb, branch_pos);
10045 /* throw exception */
10046 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10048 g_free (branch_positions);
10049 #endif /* DISABLE_JIT */
10051 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10052 info->d.element_addr.rank = rank;
10053 info->d.element_addr.elem_size = elem_size;
10054 ret = mono_mb_create (mb, sig, 4, info);
10057 /* cache the result */
10059 mono_marshal_lock ();
10060 for (i = 0; i < elem_addr_cache_next; ++i) {
10061 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10062 /* FIXME: free ret */
10063 ret = elem_addr_cache [i].method;
10069 if (elem_addr_cache_next >= elem_addr_cache_size) {
10070 int new_size = elem_addr_cache_size + 4;
10071 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10072 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10073 g_free (elem_addr_cache);
10074 elem_addr_cache = new_array;
10075 elem_addr_cache_size = new_size;
10077 elem_addr_cache [elem_addr_cache_next].rank = rank;
10078 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10079 elem_addr_cache [elem_addr_cache_next].method = ret;
10080 elem_addr_cache_next ++;
10082 mono_marshal_unlock ();
10087 * mono_marshal_get_array_accessor_wrapper:
10089 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10092 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10094 MonoMethodSignature *sig;
10095 MonoMethodBuilder *mb;
10099 MonoGenericContext *ctx = NULL;
10100 MonoMethod *orig_method = NULL;
10101 MonoGenericContainer *container = NULL;
10105 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10106 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10107 * FIXME: Use generic methods.
10114 g_assert_not_reached ();
10116 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10117 if ((res = mono_marshal_find_in_cache (cache, method)))
10121 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10124 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10126 #ifndef DISABLE_JIT
10127 /* Call the method */
10129 mono_mb_emit_ldarg (mb, 0);
10130 for (i = 0; i < sig->param_count; i++)
10131 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10135 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10136 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10138 mono_mb_emit_managed_call (mb, method, NULL);
10140 mono_mb_emit_byte (mb, CEE_RET);
10143 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10144 info->d.array_accessor.method = method;
10148 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10149 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10151 res = mono_mb_create_and_cache_full (cache, method,
10152 mb, sig, sig->param_count + 16,
10161 mono_marshal_alloc (gulong size, MonoError *error)
10165 mono_error_init (error);
10168 res = CoTaskMemAlloc (size);
10170 res = g_try_malloc ((gulong)size);
10172 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10178 ves_icall_marshal_alloc (gulong size)
10181 void *ret = mono_marshal_alloc (size, &error);
10182 mono_error_raise_exception (&error);
10188 mono_marshal_free (gpointer ptr)
10191 CoTaskMemFree (ptr);
10198 mono_marshal_free_array (gpointer *ptr, int size)
10205 for (i = 0; i < size; i++)
10211 mono_marshal_string_to_utf16 (MonoString *s)
10213 return s ? mono_string_chars (s) : NULL;
10217 mono_marshal_string_to_utf16_copy (MonoString *s)
10223 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10224 mono_error_raise_exception (&error); /* FIXME don't raise here */
10225 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10226 res [mono_string_length (s)] = 0;
10232 * mono_marshal_set_last_error:
10234 * This function is invoked to set the last error value from a P/Invoke call
10235 * which has SetLastError set.
10238 mono_marshal_set_last_error (void)
10241 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10243 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10248 mono_marshal_set_last_error_windows (int error)
10251 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10256 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10257 gpointer dest, gint32 length)
10262 MONO_CHECK_ARG_NULL (src,);
10263 MONO_CHECK_ARG_NULL (dest,);
10265 if (src->obj.vtable->klass->rank != 1) {
10266 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10269 if (start_index < 0) {
10270 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10274 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10277 if (start_index + length > mono_array_length (src)) {
10278 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10282 element_size = mono_array_element_size (src->obj.vtable->klass);
10284 /* no references should be involved */
10285 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10287 memcpy (dest, source_addr, length * element_size);
10291 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10292 MonoArray *dest, gint32 length)
10297 MONO_CHECK_ARG_NULL (src,);
10298 MONO_CHECK_ARG_NULL (dest,);
10300 if (dest->obj.vtable->klass->rank != 1) {
10301 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10304 if (start_index < 0) {
10305 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10309 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10312 if (start_index + length > mono_array_length (dest)) {
10313 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10316 element_size = mono_array_element_size (dest->obj.vtable->klass);
10318 /* no references should be involved */
10319 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10321 memcpy (dest_addr, src, length * element_size);
10325 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10330 return mono_string_new (mono_domain_get (), ptr);
10334 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10337 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10340 return mono_string_new_len (mono_domain_get (), ptr, len);
10345 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10348 MonoString *res = NULL;
10349 MonoDomain *domain = mono_domain_get ();
10359 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10360 mono_error_raise_exception (&error);
10365 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10368 MonoString *res = NULL;
10369 MonoDomain *domain = mono_domain_get ();
10371 mono_error_init (&error);
10375 mono_error_set_argument_null (&error, "ptr", "");
10377 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10380 if (!mono_error_ok (&error))
10381 mono_error_set_pending_exception (&error);
10386 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10388 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10392 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10398 MONO_CHECK_ARG_NULL (rtype, 0);
10400 type = rtype->type;
10401 klass = mono_class_from_mono_type (type);
10402 if (!mono_class_init (klass)) {
10403 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10407 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10409 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10410 return sizeof (gpointer);
10411 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10413 MonoException *exc;
10415 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10416 exc = mono_get_exception_argument ("t", msg);
10418 mono_set_pending_exception (exc);
10422 return mono_class_native_size (klass, NULL);
10426 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10429 MonoMethod *method;
10432 MONO_CHECK_ARG_NULL (obj,);
10433 MONO_CHECK_ARG_NULL (dst,);
10435 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10439 pa [2] = &delete_old;
10441 mono_runtime_invoke_checked (method, NULL, pa, &error);
10442 mono_error_raise_exception (&error);
10446 ptr_to_structure (gpointer src, MonoObject *dst)
10449 MonoMethod *method;
10452 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10457 mono_runtime_invoke_checked (method, NULL, pa, &error);
10458 mono_error_raise_exception (&error); /* FIXME don't raise here */
10462 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10466 MONO_CHECK_ARG_NULL (src,);
10467 MONO_CHECK_ARG_NULL (dst,);
10469 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10471 if (t->type == MONO_TYPE_VALUETYPE) {
10472 MonoException *exc;
10475 tmp = g_strdup_printf ("Destination is a boxed value type.");
10476 exc = mono_get_exception_argument ("dst", tmp);
10479 mono_set_pending_exception (exc);
10483 ptr_to_structure (src, dst);
10487 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10491 MonoDomain *domain = mono_domain_get ();
10496 MONO_CHECK_ARG_NULL (type, NULL);
10498 klass = mono_class_from_mono_type (type->type);
10499 if (!mono_class_init (klass)) {
10500 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10504 res = mono_object_new_checked (domain, klass, &error);
10505 mono_error_raise_exception (&error);
10507 ptr_to_structure (src, res);
10513 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10515 MonoMarshalType *info;
10518 int match_index = -1;
10520 MONO_CHECK_ARG_NULL (type, 0);
10521 MONO_CHECK_ARG_NULL (field_name, 0);
10523 fname = mono_string_to_utf8 (field_name);
10524 klass = mono_class_from_mono_type (type->type);
10525 if (!mono_class_init (klass)) {
10526 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10530 while (klass && match_index == -1) {
10531 MonoClassField* field;
10533 gpointer iter = NULL;
10534 while ((field = mono_class_get_fields (klass, &iter))) {
10535 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10537 if (!strcmp (fname, mono_field_get_name (field))) {
10544 if (match_index == -1)
10545 klass = klass->parent;
10550 if(match_index == -1) {
10551 MonoException* exc;
10554 /* Get back original class instance */
10555 klass = mono_class_from_mono_type (type->type);
10557 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10558 exc = mono_get_exception_argument ("fieldName", tmp);
10561 mono_set_pending_exception ((MonoException*)exc);
10565 info = mono_marshal_load_type_info (klass);
10566 return info->fields [match_index].offset;
10570 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10575 tres = mono_string_to_utf8 (string);
10579 len = strlen (tres) + 1;
10580 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10581 memcpy (ret, tres, len);
10586 return mono_string_to_utf8 (string);
10591 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10593 if (string == NULL)
10596 #ifdef TARGET_WIN32
10597 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10598 ((mono_string_length (string) + 1) * 2);
10600 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10602 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10603 res [mono_string_length (string)] = 0;
10609 mono_struct_delete_old (MonoClass *klass, char *ptr)
10611 MonoMarshalType *info;
10614 info = mono_marshal_load_type_info (klass);
10616 for (i = 0; i < info->num_fields; i++) {
10617 MonoMarshalConv conv;
10618 MonoType *ftype = info->fields [i].field->type;
10621 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10624 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10625 klass->unicode, &conv);
10627 cpos = ptr + info->fields [i].offset;
10630 case MONO_MARSHAL_CONV_NONE:
10631 if (MONO_TYPE_ISSTRUCT (ftype)) {
10632 mono_struct_delete_old (ftype->data.klass, cpos);
10636 case MONO_MARSHAL_CONV_STR_LPWSTR:
10637 /* We assume this field points inside a MonoString */
10639 case MONO_MARSHAL_CONV_STR_LPTSTR:
10640 #ifdef TARGET_WIN32
10641 /* We assume this field points inside a MonoString
10645 case MONO_MARSHAL_CONV_STR_LPSTR:
10646 case MONO_MARSHAL_CONV_STR_BSTR:
10647 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10648 case MONO_MARSHAL_CONV_STR_TBSTR:
10649 mono_marshal_free (*(gpointer *)cpos);
10659 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10663 MONO_CHECK_ARG_NULL (src,);
10664 MONO_CHECK_ARG_NULL (type,);
10666 klass = mono_class_from_mono_type (type->type);
10667 if (!mono_class_init (klass)) {
10668 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10672 mono_struct_delete_old (klass, (char *)src);
10676 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10679 size_t s = (size_t)size;
10682 /* This returns a valid pointer for size 0 on MS.NET */
10686 res = GlobalAlloc (GMEM_FIXED, s);
10688 res = g_try_malloc (s);
10691 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10697 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10700 size_t s = (size_t)size;
10703 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10708 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10710 res = g_try_realloc (ptr, s);
10713 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10719 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10729 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10734 res = CoTaskMemAlloc (size);
10736 if ((gulong)size == 0)
10737 /* This returns a valid pointer for size 0 on MS.NET */
10740 res = g_try_malloc ((gulong)size);
10743 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10748 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10751 CoTaskMemFree (ptr);
10758 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10763 res = CoTaskMemRealloc (ptr, size);
10765 res = g_try_realloc (ptr, (gulong)size);
10768 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10773 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10775 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10779 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10781 MonoClass *klass = mono_type_get_class (type->type);
10782 if (!mono_class_init (klass)) {
10783 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10787 return mono_ftnptr_to_delegate (klass, ftn);
10791 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10793 return mono_delegate_to_ftnptr (delegate);
10797 * mono_marshal_is_loading_type_info:
10799 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10803 mono_marshal_is_loading_type_info (MonoClass *klass)
10805 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10807 return g_slist_find (loads_list, klass) != NULL;
10811 * mono_marshal_load_type_info:
10813 * Initialize klass->marshal_info using information from metadata. This function can
10814 * recursively call itself, and the caller is responsible to avoid that by calling
10815 * mono_marshal_is_loading_type_info () beforehand.
10817 * LOCKING: Acquires the loader lock.
10820 mono_marshal_load_type_info (MonoClass* klass)
10823 guint32 native_size = 0, min_align = 1, packing;
10824 MonoMarshalType *info;
10825 MonoClassField* field;
10828 GSList *loads_list;
10830 g_assert (klass != NULL);
10832 if (klass->marshal_info)
10833 return klass->marshal_info;
10835 if (!klass->inited)
10836 mono_class_init (klass);
10838 if (klass->marshal_info)
10839 return klass->marshal_info;
10842 * This function can recursively call itself, so we keep the list of classes which are
10843 * under initialization in a TLS list.
10845 g_assert (!mono_marshal_is_loading_type_info (klass));
10846 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10847 loads_list = g_slist_prepend (loads_list, klass);
10848 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10851 while ((field = mono_class_get_fields (klass, &iter))) {
10852 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10854 if (mono_field_is_deleted (field))
10859 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10861 /* The mempool is protected by the loader lock */
10862 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10863 info->num_fields = count;
10865 /* Try to find a size for this type in metadata */
10866 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10868 if (klass->parent) {
10869 int parent_size = mono_class_native_size (klass->parent, NULL);
10871 /* Add parent size to real size */
10872 native_size += parent_size;
10873 info->native_size = parent_size;
10876 packing = klass->packing_size ? klass->packing_size : 8;
10879 while ((field = mono_class_get_fields (klass, &iter))) {
10883 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10886 if (mono_field_is_deleted (field))
10888 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10889 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10890 NULL, NULL, &info->fields [j].mspec);
10892 info->fields [j].field = field;
10894 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10895 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10896 /* This field is a hack inserted by MCS to empty structures */
10901 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10902 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10903 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10904 &align, TRUE, klass->unicode);
10905 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10906 min_align = MAX (align, min_align);
10907 info->fields [j].offset = info->native_size;
10908 info->fields [j].offset += align - 1;
10909 info->fields [j].offset &= ~(align - 1);
10910 info->native_size = info->fields [j].offset + size;
10912 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10913 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10914 &align, TRUE, klass->unicode);
10915 min_align = MAX (align, min_align);
10916 info->fields [j].offset = field->offset - sizeof (MonoObject);
10917 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10923 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10924 info->native_size = MAX (native_size, info->native_size);
10926 * If the provided Size is equal or larger than the calculated size, and there
10927 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10929 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10930 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10933 min_align = MIN (min_align, packing);
10937 if (info->native_size & (min_align - 1)) {
10938 info->native_size += min_align - 1;
10939 info->native_size &= ~(min_align - 1);
10942 info->min_align = min_align;
10944 /* Update the class's blittable info, if the layouts don't match */
10945 if (info->native_size != mono_class_value_size (klass, NULL))
10946 klass->blittable = FALSE;
10948 /* If this is an array type, ensure that we have element info */
10949 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10950 mono_marshal_load_type_info (klass->element_class);
10953 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10954 loads_list = g_slist_remove (loads_list, klass);
10955 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10957 mono_marshal_lock ();
10958 if (!klass->marshal_info) {
10959 /*We do double-checking locking on marshal_info */
10960 mono_memory_barrier ();
10961 klass->marshal_info = info;
10963 mono_marshal_unlock ();
10965 return klass->marshal_info;
10969 * mono_class_native_size:
10972 * Returns: the native size of an object instance (when marshaled
10973 * to unmanaged code)
10976 mono_class_native_size (MonoClass *klass, guint32 *align)
10978 if (!klass->marshal_info) {
10979 if (mono_marshal_is_loading_type_info (klass)) {
10984 mono_marshal_load_type_info (klass);
10989 *align = klass->marshal_info->min_align;
10991 return klass->marshal_info->native_size;
10995 * mono_type_native_stack_size:
10996 * @t: the type to return the size it uses on the stack
10998 * Returns: the number of bytes required to hold an instance of this
10999 * type on the native stack
11002 mono_type_native_stack_size (MonoType *t, guint32 *align)
11006 g_assert (t != NULL);
11012 *align = sizeof (gpointer);
11013 return sizeof (gpointer);
11017 case MONO_TYPE_BOOLEAN:
11018 case MONO_TYPE_CHAR:
11029 case MONO_TYPE_STRING:
11030 case MONO_TYPE_OBJECT:
11031 case MONO_TYPE_CLASS:
11032 case MONO_TYPE_SZARRAY:
11033 case MONO_TYPE_PTR:
11034 case MONO_TYPE_FNPTR:
11035 case MONO_TYPE_ARRAY:
11036 *align = sizeof (gpointer);
11037 return sizeof (gpointer);
11042 *align = MONO_ABI_ALIGNOF (double);
11046 *align = MONO_ABI_ALIGNOF (gint64);
11048 case MONO_TYPE_GENERICINST:
11049 if (!mono_type_generic_inst_is_valuetype (t)) {
11050 *align = sizeof (gpointer);
11051 return sizeof (gpointer);
11054 case MONO_TYPE_TYPEDBYREF:
11055 case MONO_TYPE_VALUETYPE: {
11057 MonoClass *klass = mono_class_from_mono_type (t);
11059 if (klass->enumtype)
11060 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11062 size = mono_class_native_size (klass, align);
11063 *align = *align + 3;
11073 g_error ("type 0x%02x unknown", t->type);
11079 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11080 gboolean as_field, gboolean unicode)
11082 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11085 switch (native_type) {
11086 case MONO_NATIVE_BOOLEAN:
11089 case MONO_NATIVE_I1:
11090 case MONO_NATIVE_U1:
11093 case MONO_NATIVE_I2:
11094 case MONO_NATIVE_U2:
11095 case MONO_NATIVE_VARIANTBOOL:
11098 case MONO_NATIVE_I4:
11099 case MONO_NATIVE_U4:
11100 case MONO_NATIVE_ERROR:
11103 case MONO_NATIVE_I8:
11104 case MONO_NATIVE_U8:
11105 *align = MONO_ABI_ALIGNOF (gint64);
11107 case MONO_NATIVE_R4:
11110 case MONO_NATIVE_R8:
11111 *align = MONO_ABI_ALIGNOF (double);
11113 case MONO_NATIVE_INT:
11114 case MONO_NATIVE_UINT:
11115 case MONO_NATIVE_LPSTR:
11116 case MONO_NATIVE_LPWSTR:
11117 case MONO_NATIVE_LPTSTR:
11118 case MONO_NATIVE_BSTR:
11119 case MONO_NATIVE_ANSIBSTR:
11120 case MONO_NATIVE_TBSTR:
11121 case MONO_NATIVE_LPARRAY:
11122 case MONO_NATIVE_SAFEARRAY:
11123 case MONO_NATIVE_IUNKNOWN:
11124 case MONO_NATIVE_IDISPATCH:
11125 case MONO_NATIVE_INTERFACE:
11126 case MONO_NATIVE_ASANY:
11127 case MONO_NATIVE_FUNC:
11128 case MONO_NATIVE_LPSTRUCT:
11129 *align = MONO_ABI_ALIGNOF (gpointer);
11130 return sizeof (gpointer);
11131 case MONO_NATIVE_STRUCT:
11132 klass = mono_class_from_mono_type (type);
11133 if (klass == mono_defaults.object_class &&
11134 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11138 return mono_class_native_size (klass, align);
11139 case MONO_NATIVE_BYVALTSTR: {
11140 int esize = unicode ? 2: 1;
11143 return mspec->data.array_data.num_elem * esize;
11145 case MONO_NATIVE_BYVALARRAY: {
11146 // FIXME: Have to consider ArraySubType
11148 klass = mono_class_from_mono_type (type);
11149 if (klass->element_class == mono_defaults.char_class) {
11150 esize = unicode ? 2 : 1;
11153 esize = mono_class_native_size (klass->element_class, align);
11156 return mspec->data.array_data.num_elem * esize;
11158 case MONO_NATIVE_CUSTOM:
11159 *align = sizeof (gpointer);
11160 return sizeof (gpointer);
11162 case MONO_NATIVE_CURRENCY:
11163 case MONO_NATIVE_VBBYREFSTR:
11165 g_error ("native type %02x not implemented", native_type);
11168 g_assert_not_reached ();
11173 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11182 t = &o->vtable->klass->byval_arg;
11186 case MONO_TYPE_PTR:
11189 case MONO_TYPE_BOOLEAN:
11192 case MONO_TYPE_CHAR:
11197 return mono_object_unbox (o);
11199 case MONO_TYPE_STRING:
11200 switch (string_encoding) {
11201 case MONO_NATIVE_LPWSTR:
11202 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11204 case MONO_NATIVE_LPSTR:
11205 return mono_string_to_lpstr ((MonoString*)o);
11208 g_warning ("marshaling conversion %d not implemented", string_encoding);
11209 g_assert_not_reached ();
11212 case MONO_TYPE_CLASS:
11213 case MONO_TYPE_VALUETYPE: {
11214 MonoMethod *method;
11217 MonoBoolean delete_old = FALSE;
11219 klass = t->data.klass;
11221 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11224 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11225 klass->blittable || klass->enumtype))
11226 return mono_object_unbox (o);
11228 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11229 mono_error_raise_exception (&error); /* FIXME don't raise here */
11231 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11232 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11236 pa [2] = &delete_old;
11238 mono_runtime_invoke_checked (method, NULL, pa, &error);
11239 mono_error_raise_exception (&error); /* FIXME don't raise here */
11247 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11252 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11261 t = &o->vtable->klass->byval_arg;
11263 case MONO_TYPE_STRING:
11264 switch (string_encoding) {
11265 case MONO_NATIVE_LPWSTR:
11266 case MONO_NATIVE_LPSTR:
11267 mono_marshal_free (ptr);
11270 g_warning ("marshaling conversion %d not implemented", string_encoding);
11271 g_assert_not_reached ();
11274 case MONO_TYPE_CLASS:
11275 case MONO_TYPE_VALUETYPE: {
11276 klass = t->data.klass;
11278 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11279 klass->blittable || klass->enumtype))
11282 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11283 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11289 mono_runtime_invoke_checked (method, NULL, pa, &error);
11290 mono_error_raise_exception (&error); /* FIXME don't raise here */
11293 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11294 mono_struct_delete_old (klass, (char *)ptr);
11297 mono_marshal_free (ptr);
11306 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11308 MonoMethodSignature *sig, *csig;
11309 MonoMethodBuilder *mb;
11314 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11315 mb->method->slot = -1;
11317 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11318 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11320 sig = mono_method_signature (method);
11321 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11322 csig->generic_param_count = 0;
11324 #ifndef DISABLE_JIT
11325 mono_mb_emit_ldarg (mb, 0);
11326 for (i = 0; i < csig->param_count; i++)
11327 mono_mb_emit_ldarg (mb, i + 1);
11328 mono_mb_emit_managed_call (mb, method, NULL);
11329 mono_mb_emit_byte (mb, CEE_RET);
11331 /* We can corlib internal methods */
11332 mb->skip_visibility = TRUE;
11334 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11335 info->d.generic_array_helper.method = method;
11336 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11344 * The mono_win32_compat_* functions are implementations of inline
11345 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11346 * although not exported by kernel32.
11348 * We map the appropiate kernel32 entries to these functions using
11349 * dllmaps declared in the global etc/mono/config.
11353 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11355 if (!dest || !source)
11358 memcpy (dest, source, length);
11362 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11364 memset (dest, fill, length);
11368 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11370 if (!dest || !source)
11373 memmove (dest, source, length);
11377 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11379 memset (dest, 0, length);
11383 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11388 for (i = 0; i < len; ++i)
11392 g_assert (i < len);
11395 while (byte && !(byte & 1))
11397 g_assert (byte == 1);
11400 *bitmask = buf [i];
11404 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11406 MonoMethodBuilder *mb;
11407 MonoMethodSignature *sig, *csig;
11408 MonoExceptionClause *clause;
11413 int i, param_count, sig_size, pos_leave;
11414 int coop_gc_var, coop_gc_dummy_local;
11418 klass = method->klass;
11419 image = method->klass->image;
11421 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11423 if ((res = mono_marshal_find_in_cache (cache, method)))
11426 sig = mono_method_signature (method);
11427 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11429 /* add "this" and exception param */
11430 param_count = sig->param_count + sig->hasthis + 1;
11432 /* dup & extend signature */
11433 csig = mono_metadata_signature_alloc (image, param_count);
11434 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11435 memcpy (csig, sig, sig_size);
11436 csig->param_count = param_count;
11439 csig->call_convention = MONO_CALL_DEFAULT;
11441 if (sig->hasthis) {
11443 csig->params [0] = &klass->byval_arg;
11444 /* move params up by one */
11445 for (i = 0; i < sig->param_count; i++)
11446 csig->params [i + 1] = sig->params [i];
11449 /* setup exception param as byref+[out] */
11450 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11451 &mono_defaults.exception_class->byval_arg);
11452 csig->params [param_count - 1]->byref = 1;
11453 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11455 /* convert struct return to object */
11456 if (MONO_TYPE_ISSTRUCT (sig->ret))
11457 csig->ret = &mono_defaults.object_class->byval_arg;
11459 #ifndef DISABLE_JIT
11460 /* local 0 (temp for exception object) */
11461 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11463 /* local 1 (temp for result) */
11464 if (!MONO_TYPE_IS_VOID (sig->ret))
11465 mono_mb_add_local (mb, sig->ret);
11467 if (mono_threads_is_coop_enabled ()) {
11468 /* local 4, the local to be used when calling the reset_blocking funcs */
11469 /* tons of code hardcode 3 to be the return var */
11470 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11471 /* local 5, the local used to get a stack address for suspend funcs */
11472 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11475 /* clear exception arg */
11476 mono_mb_emit_ldarg (mb, param_count - 1);
11477 mono_mb_emit_byte (mb, CEE_LDNULL);
11478 mono_mb_emit_byte (mb, CEE_STIND_REF);
11480 if (mono_threads_is_coop_enabled ()) {
11481 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11482 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11483 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11484 mono_mb_emit_stloc (mb, coop_gc_var);
11488 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11489 clause->try_offset = mono_mb_get_label (mb);
11491 /* push method's args */
11492 for (i = 0; i < param_count - 1; i++) {
11496 mono_mb_emit_ldarg (mb, i);
11498 /* get the byval type of the param */
11499 klass = mono_class_from_mono_type (csig->params [i]);
11500 type = &klass->byval_arg;
11502 /* unbox struct args */
11503 if (MONO_TYPE_ISSTRUCT (type)) {
11504 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11506 /* byref args & and the "this" arg must remain a ptr.
11507 Otherwise make a copy of the value type */
11508 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11509 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11511 csig->params [i] = &mono_defaults.object_class->byval_arg;
11516 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11517 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11519 mono_mb_emit_op (mb, CEE_CALL, method);
11521 /* save result at local 1 */
11522 if (!MONO_TYPE_IS_VOID (sig->ret))
11523 mono_mb_emit_stloc (mb, 1);
11525 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11528 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11529 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11530 clause->data.catch_class = mono_defaults.object_class;
11532 clause->handler_offset = mono_mb_get_label (mb);
11534 /* store exception at local 0 */
11535 mono_mb_emit_stloc (mb, 0);
11536 mono_mb_emit_ldarg (mb, param_count - 1);
11537 mono_mb_emit_ldloc (mb, 0);
11538 mono_mb_emit_byte (mb, CEE_STIND_REF);
11539 mono_mb_emit_branch (mb, CEE_LEAVE);
11541 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11543 mono_mb_set_clauses (mb, 1, clause);
11545 mono_mb_patch_branch (mb, pos_leave);
11548 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11549 mono_mb_emit_ldloc (mb, 1);
11551 /* box the return value */
11552 if (MONO_TYPE_ISSTRUCT (sig->ret))
11553 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11556 if (mono_threads_is_coop_enabled ()) {
11557 /* XXX merge reset_blocking_end with detach */
11558 mono_mb_emit_ldloc (mb, coop_gc_var);
11559 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11560 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11563 mono_mb_emit_byte (mb, CEE_RET);
11566 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11573 * mono_marshal_free_dynamic_wrappers:
11575 * Free wrappers of the dynamic method METHOD.
11578 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11580 MonoImage *image = method->klass->image;
11582 g_assert (method_is_dynamic (method));
11584 /* This could be called during shutdown */
11585 if (marshal_mutex_initialized)
11586 mono_marshal_lock ();
11588 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11589 * they could be shared with other methods ?
11591 if (image->wrapper_caches.runtime_invoke_direct_cache)
11592 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11593 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11594 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11595 // FIXME: Need to clear the caches in other images as well
11596 if (image->delegate_bound_static_invoke_cache)
11597 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11599 if (marshal_mutex_initialized)
11600 mono_marshal_unlock ();