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);
146 /* Lazy class loading functions */
147 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
148 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
150 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
151 static MonoMethod *sh_dangerous_add_ref;
152 static MonoMethod *sh_dangerous_release;
158 sh_dangerous_add_ref = mono_class_get_method_from_name (
159 mono_defaults.safehandle_class, "DangerousAddRef", 1);
160 sh_dangerous_release = mono_class_get_method_from_name (
161 mono_defaults.safehandle_class, "DangerousRelease", 0);
165 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
167 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
169 mono_register_jit_icall (func, name, sig, save);
173 mono_signature_no_pinvoke (MonoMethod *method)
175 MonoMethodSignature *sig = mono_method_signature (method);
177 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
178 sig->pinvoke = FALSE;
185 mono_marshal_init_tls (void)
187 mono_native_tls_alloc (&last_error_tls_id, NULL);
188 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
192 mono_marshal_init (void)
194 static gboolean module_initialized = FALSE;
196 if (!module_initialized) {
197 module_initialized = TRUE;
198 mono_os_mutex_init_recursive (&marshal_mutex);
199 marshal_mutex_initialized = TRUE;
201 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
202 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
204 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
206 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
207 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
208 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
209 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
210 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
211 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
212 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
214 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
215 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
216 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
217 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
218 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
219 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
220 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
221 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
222 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
223 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
224 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
225 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
226 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
227 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
228 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
229 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
230 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
231 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
232 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
233 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
234 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
235 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
236 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
237 register_icall (g_free, "g_free", "void ptr", FALSE);
238 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
239 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
240 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
241 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
242 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
243 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
244 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
245 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
246 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
247 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
249 mono_cominterop_init ();
250 mono_remoting_init ();
252 if (mono_threads_is_coop_enabled ()) {
253 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
254 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
255 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
256 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
262 mono_marshal_cleanup (void)
264 mono_cominterop_cleanup ();
266 mono_native_tls_free (load_type_info_tls_id);
267 mono_native_tls_free (last_error_tls_id);
268 mono_os_mutex_destroy (&marshal_mutex);
269 marshal_mutex_initialized = FALSE;
273 mono_marshal_lock_internal (void)
275 mono_marshal_lock ();
279 mono_marshal_unlock_internal (void)
281 mono_marshal_unlock ();
285 mono_delegate_to_ftnptr (MonoDelegate *delegate)
287 MonoMethod *method, *wrapper;
289 uint32_t target_handle = 0;
294 if (delegate->delegate_trampoline)
295 return delegate->delegate_trampoline;
297 klass = ((MonoObject *)delegate)->vtable->klass;
298 g_assert (klass->delegate);
300 method = delegate->method;
301 if (delegate->method_is_virtual)
302 method = mono_object_get_virtual_method (delegate->target, method);
304 if (mono_method_signature (method)->pinvoke) {
305 const char *exc_class, *exc_arg;
308 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
310 g_assert (exc_class);
311 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
316 if (delegate->target) {
317 /* Produce a location which can be embedded in JITted code */
318 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
321 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
323 delegate->delegate_trampoline = mono_compile_method (wrapper);
325 // Add the delegate to the delegate hash table
326 delegate_hash_table_add (delegate);
328 /* when the object is collected, collect the dynamic method, too */
329 mono_object_register_finalizer ((MonoObject*)delegate);
331 return delegate->delegate_trampoline;
335 * this hash table maps from a delegate trampoline object to a weak reference
336 * of the delegate. As an optimizations with a non-moving GC we store the
337 * object pointer itself, otherwise we use a GC handle.
339 static GHashTable *delegate_hash_table;
342 delegate_hash_table_new (void) {
343 return g_hash_table_new (NULL, NULL);
347 delegate_hash_table_remove (MonoDelegate *d)
349 guint32 gchandle = 0;
351 mono_marshal_lock ();
352 if (delegate_hash_table == NULL)
353 delegate_hash_table = delegate_hash_table_new ();
354 if (mono_gc_is_moving ())
355 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
356 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
357 mono_marshal_unlock ();
358 if (gchandle && mono_gc_is_moving ())
359 mono_gchandle_free (gchandle);
363 delegate_hash_table_add (MonoDelegate *d)
366 guint32 old_gchandle;
368 mono_marshal_lock ();
369 if (delegate_hash_table == NULL)
370 delegate_hash_table = delegate_hash_table_new ();
371 if (mono_gc_is_moving ()) {
372 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
373 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
374 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
376 mono_gchandle_free (old_gchandle);
378 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
380 mono_marshal_unlock ();
384 * mono_marshal_use_aot_wrappers:
386 * Instructs this module to use AOT compatible wrappers.
389 mono_marshal_use_aot_wrappers (gboolean use)
391 use_aot_wrappers = use;
395 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
397 static MonoClass *UnmanagedFunctionPointerAttribute;
398 MonoCustomAttrInfo *cinfo;
399 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
401 if (!UnmanagedFunctionPointerAttribute)
402 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
404 /* The attribute is only available in Net 2.0 */
405 if (UnmanagedFunctionPointerAttribute) {
407 * The pinvoke attributes are stored in a real custom attribute so we have to
410 cinfo = mono_custom_attrs_from_class (klass);
411 if (cinfo && !mono_runtime_get_no_exec ()) {
413 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
415 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
417 if (!mono_error_ok (&error)) {
418 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
419 mono_error_cleanup (&error);
423 mono_custom_attrs_free (cinfo);
429 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
438 mono_marshal_lock ();
439 if (delegate_hash_table == NULL)
440 delegate_hash_table = delegate_hash_table_new ();
442 if (mono_gc_is_moving ()) {
443 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
444 mono_marshal_unlock ();
446 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
450 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
451 mono_marshal_unlock ();
454 /* This is a native function, so construct a delegate for it */
455 MonoMethodSignature *sig;
457 MonoMarshalSpec **mspecs;
458 MonoMethod *invoke = mono_get_delegate_invoke (klass);
459 MonoMethodPInvoke piinfo;
460 MonoObject *this_obj;
463 if (use_aot_wrappers) {
464 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
465 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
467 memset (&piinfo, 0, sizeof (piinfo));
468 parse_unmanaged_function_pointer_attr (klass, &piinfo);
470 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
471 mono_method_get_marshal_info (invoke, mspecs);
472 /* Freed below so don't alloc from mempool */
473 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
476 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
479 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
481 mono_metadata_free_marshal_spec (mspecs [i]);
486 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
487 mono_error_raise_exception (&error); /* FIXME don't raise here */
488 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
491 if (d->object.vtable->domain != mono_domain_get ())
492 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
498 mono_delegate_free_ftnptr (MonoDelegate *delegate)
503 delegate_hash_table_remove (delegate);
505 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
507 if (!delegate->target) {
508 /* The wrapper method is shared between delegates -> no need to free it */
517 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
520 method = mono_jit_info_get_method (ji);
521 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
523 /*the target gchandle is the first entry after size and the wrapper itself.*/
524 gchandle = GPOINTER_TO_UINT (method_data [2]);
527 mono_gchandle_free (gchandle);
529 mono_runtime_free_method (mono_object_domain (delegate), method);
534 mono_string_from_byvalstr (const char *data, int max_len)
536 MonoDomain *domain = mono_domain_get ();
542 while (len < max_len - 1 && data [len])
545 return mono_string_new_len (domain, data, len);
549 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
552 MonoString *res = NULL;
553 MonoDomain *domain = mono_domain_get ();
559 while (data [len]) len++;
561 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
562 mono_error_raise_exception (&error);
567 mono_array_to_savearray (MonoArray *array)
572 g_assert_not_reached ();
577 mono_array_to_lparray (MonoArray *array)
580 gpointer *nativeArray = NULL;
581 int nativeArraySize = 0;
591 klass = array->obj.vtable->klass;
593 switch (klass->element_class->byval_arg.type) {
595 g_assert_not_reached ();
597 case MONO_TYPE_CLASS:
598 nativeArraySize = array->max_length;
599 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
600 for(i = 0; i < nativeArraySize; ++i)
601 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
604 case MONO_TYPE_BOOLEAN:
617 case MONO_TYPE_VALUETYPE:
621 case MONO_TYPE_GENERICINST:
622 case MONO_TYPE_OBJECT:
623 case MONO_TYPE_ARRAY:
624 case MONO_TYPE_SZARRAY:
625 case MONO_TYPE_STRING:
627 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
628 g_assert_not_reached ();
631 return array->vector;
635 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
646 klass = array->obj.vtable->klass;
648 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
649 for(i = 0; i < array->max_length; ++i)
650 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
657 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
659 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
661 if (elclass == mono_defaults.byte_class) {
662 GError *error = NULL;
666 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
669 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
673 g_error_free (error);
676 g_assert_not_reached ();
680 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
682 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
686 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
688 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
690 if (elclass == mono_defaults.byte_class) {
692 GError *error = NULL;
694 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
696 MonoException *exc = mono_get_exception_argument ("string", error->message);
697 g_error_free (error);
698 mono_raise_exception (exc);
701 memcpy (native_arr, as, MIN (strlen (as), elnum));
704 g_assert_not_reached ();
709 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
711 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
714 static MonoStringBuilder *
715 mono_string_builder_new (int starting_string_length)
717 static MonoClass *string_builder_class;
718 static MonoMethod *sb_ctor;
719 static void *args [1];
722 int initial_len = starting_string_length;
728 MonoMethodDesc *desc;
731 string_builder_class = mono_class_get_string_builder_class ();
732 g_assert (string_builder_class);
733 desc = mono_method_desc_new (":.ctor(int)", FALSE);
734 m = mono_method_desc_search_in_class (desc, string_builder_class);
736 mono_method_desc_free (desc);
737 mono_memory_barrier ();
741 // We make a new array in the _to_builder function, so this
742 // array will always be garbage collected.
743 args [0] = &initial_len;
745 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
746 mono_error_assert_ok (&error);
749 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
750 g_assert (exc == NULL);
751 mono_error_assert_ok (&error);
753 g_assert (sb->chunkChars->max_length >= initial_len);
759 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
761 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
762 gunichar2 *charSrc = (gunichar2 *)text;
763 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
765 sb->chunkLength = string_len;
771 mono_string_utf16_to_builder2 (gunichar2 *text)
777 for (len = 0; text [len] != 0; ++len);
779 MonoStringBuilder *sb = mono_string_builder_new (len);
780 mono_string_utf16_to_builder (sb, text);
786 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
791 int len = strlen (text);
792 if (len > mono_string_builder_capacity (sb))
793 len = mono_string_builder_capacity (sb);
795 GError *error = NULL;
797 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
800 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
801 mono_string_utf16_to_builder_copy (sb, ut, copied);
803 g_error_free (error);
809 mono_string_utf8_to_builder2 (char *text)
814 int len = strlen (text);
815 MonoStringBuilder *sb = mono_string_builder_new (len);
816 mono_string_utf8_to_builder (sb, text);
823 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
829 for (len = 0; text [len] != 0; ++len);
831 if (len > mono_string_builder_capacity (sb))
832 len = mono_string_builder_capacity (sb);
834 mono_string_utf16_to_builder_copy (sb, text, len);
838 * mono_string_builder_to_utf8:
839 * @sb: the string builder
841 * Converts to utf8 the contents of the MonoStringBuilder.
843 * Returns: a utf8 string with the contents of the StringBuilder.
845 * The return value must be released with g_free.
848 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
851 GError *gerror = NULL;
857 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
859 guint str_len = mono_string_builder_string_length (sb);
861 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
864 g_error_free (gerror);
866 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
869 guint len = mono_string_builder_capacity (sb) + 1;
870 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
871 if (!mono_error_ok (&error)) {
874 mono_error_raise_exception (&error);
877 g_assert (str_len < len);
878 memcpy (res, tmp, str_len * sizeof (gchar));
888 * mono_string_builder_to_utf16:
889 * @sb: the string builder
891 * Converts to utf16 the contents of the MonoStringBuilder.
893 * Returns: a utf16 string with the contents of the StringBuilder.
895 * The return value must not be freed.
898 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
905 g_assert (sb->chunkChars);
907 guint len = mono_string_builder_capacity (sb);
912 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
913 mono_error_raise_exception (&error);
920 MonoStringBuilder* chunk = sb;
922 if (chunk->chunkLength > 0) {
923 // Check that we will not overrun our boundaries.
924 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
926 if (chunk->chunkLength <= len) {
927 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
929 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
932 len -= chunk->chunkLength;
934 chunk = chunk->chunkPrevious;
935 } while (chunk != NULL);
941 mono_string_to_lpstr (MonoString *s)
946 GError *error = NULL;
952 as = CoTaskMemAlloc (1);
957 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
959 MonoException *exc = mono_get_exception_argument ("string", error->message);
960 g_error_free (error);
961 mono_raise_exception(exc);
964 as = CoTaskMemAlloc (len + 1);
965 memcpy (as, tmp, len + 1);
970 return mono_string_to_utf8 (s);
975 mono_string_to_ansibstr (MonoString *string_obj)
977 g_error ("UnmanagedMarshal.BStr is not implemented.");
982 * mono_string_to_byvalstr:
983 * @dst: Where to store the null-terminated utf8 decoded string.
984 * @src: the MonoString to copy.
985 * @size: the maximum number of bytes to copy.
987 * Copies the MonoString pointed to by @src as a utf8 string
988 * into @dst, it copies at most @size bytes into the destination.
991 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
996 g_assert (dst != NULL);
999 memset (dst, 0, size);
1003 s = mono_string_to_utf8 (src);
1004 len = MIN (size, strlen (s));
1007 memcpy (dst, s, len);
1012 * mono_string_to_byvalwstr:
1013 * @dst: Where to store the null-terminated utf16 decoded string.
1014 * @src: the MonoString to copy.
1015 * @size: the maximum number of bytes to copy.
1017 * Copies the MonoString pointed to by @src as a utf16 string into
1018 * @dst, it copies at most @size bytes into the destination (including
1019 * a terminating 16-bit zero terminator).
1022 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1026 g_assert (dst != NULL);
1027 g_assert (size > 1);
1030 memset (dst, 0, size * 2);
1034 len = MIN (size, (mono_string_length (src)));
1035 memcpy (dst, mono_string_chars (src), size * 2);
1036 if (size <= mono_string_length (src))
1038 *((gunichar2 *) dst + len) = 0;
1042 mono_string_new_len_wrapper (const char *text, guint length)
1044 return mono_string_new_len (mono_domain_get (), text, length);
1050 * mono_mb_emit_exception_marshal_directive:
1052 * This function assumes ownership of MSG, which should be malloc-ed.
1055 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1060 s = mono_image_strdup (mb->method->klass->image, msg);
1065 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1068 #endif /* !DISABLE_JIT */
1071 mono_type_to_ldind (MonoType *type)
1077 switch (type->type) {
1079 return CEE_LDIND_I1;
1081 case MONO_TYPE_BOOLEAN:
1082 return CEE_LDIND_U1;
1084 return CEE_LDIND_I2;
1086 case MONO_TYPE_CHAR:
1087 return CEE_LDIND_U2;
1089 return CEE_LDIND_I4;
1091 return CEE_LDIND_U4;
1095 case MONO_TYPE_FNPTR:
1097 case MONO_TYPE_CLASS:
1098 case MONO_TYPE_STRING:
1099 case MONO_TYPE_OBJECT:
1100 case MONO_TYPE_SZARRAY:
1101 case MONO_TYPE_ARRAY:
1102 return CEE_LDIND_REF;
1105 return CEE_LDIND_I8;
1107 return CEE_LDIND_R4;
1109 return CEE_LDIND_R8;
1110 case MONO_TYPE_VALUETYPE:
1111 if (type->data.klass->enumtype) {
1112 type = mono_class_enum_basetype (type->data.klass);
1116 case MONO_TYPE_TYPEDBYREF:
1118 case MONO_TYPE_GENERICINST:
1119 type = &type->data.generic_class->container_class->byval_arg;
1122 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1128 mono_type_to_stind (MonoType *type)
1134 switch (type->type) {
1137 case MONO_TYPE_BOOLEAN:
1138 return CEE_STIND_I1;
1141 case MONO_TYPE_CHAR:
1142 return CEE_STIND_I2;
1145 return CEE_STIND_I4;
1149 case MONO_TYPE_FNPTR:
1151 case MONO_TYPE_CLASS:
1152 case MONO_TYPE_STRING:
1153 case MONO_TYPE_OBJECT:
1154 case MONO_TYPE_SZARRAY:
1155 case MONO_TYPE_ARRAY:
1156 return CEE_STIND_REF;
1159 return CEE_STIND_I8;
1161 return CEE_STIND_R4;
1163 return CEE_STIND_R8;
1164 case MONO_TYPE_VALUETYPE:
1165 if (type->data.klass->enumtype) {
1166 type = mono_class_enum_basetype (type->data.klass);
1170 case MONO_TYPE_TYPEDBYREF:
1172 case MONO_TYPE_GENERICINST:
1173 type = &type->data.generic_class->container_class->byval_arg;
1176 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1184 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1187 case MONO_MARSHAL_CONV_BOOL_I4:
1188 mono_mb_emit_ldloc (mb, 1);
1189 mono_mb_emit_ldloc (mb, 0);
1190 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1191 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1192 mono_mb_emit_byte (mb, 3);
1193 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1194 mono_mb_emit_byte (mb, CEE_BR_S);
1195 mono_mb_emit_byte (mb, 1);
1196 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1197 mono_mb_emit_byte (mb, CEE_STIND_I1);
1199 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1200 mono_mb_emit_ldloc (mb, 1);
1201 mono_mb_emit_ldloc (mb, 0);
1202 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1203 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1204 mono_mb_emit_byte (mb, 3);
1205 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1206 mono_mb_emit_byte (mb, CEE_BR_S);
1207 mono_mb_emit_byte (mb, 1);
1208 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1209 mono_mb_emit_byte (mb, CEE_STIND_I1);
1211 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1212 MonoClass *eklass = NULL;
1215 if (type->type == MONO_TYPE_SZARRAY) {
1216 eklass = type->data.klass;
1218 g_assert_not_reached ();
1221 esize = mono_class_native_size (eklass, NULL);
1223 /* create a new array */
1224 mono_mb_emit_ldloc (mb, 1);
1225 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1226 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1227 mono_mb_emit_byte (mb, CEE_STIND_I);
1229 if (eklass->blittable) {
1230 /* copy the elements */
1231 mono_mb_emit_ldloc (mb, 1);
1232 mono_mb_emit_byte (mb, CEE_LDIND_I);
1233 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1234 mono_mb_emit_byte (mb, CEE_ADD);
1235 mono_mb_emit_ldloc (mb, 0);
1236 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1237 mono_mb_emit_byte (mb, CEE_PREFIX1);
1238 mono_mb_emit_byte (mb, CEE_CPBLK);
1241 int array_var, src_var, dst_var, index_var;
1242 guint32 label2, label3;
1244 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1245 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1246 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1249 mono_mb_emit_ldloc (mb, 1);
1250 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1251 mono_mb_emit_stloc (mb, array_var);
1253 /* save the old src pointer */
1254 mono_mb_emit_ldloc (mb, 0);
1255 mono_mb_emit_stloc (mb, src_var);
1256 /* save the old dst pointer */
1257 mono_mb_emit_ldloc (mb, 1);
1258 mono_mb_emit_stloc (mb, dst_var);
1260 /* Emit marshalling loop */
1261 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1262 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1263 mono_mb_emit_stloc (mb, index_var);
1266 label2 = mono_mb_get_label (mb);
1267 mono_mb_emit_ldloc (mb, index_var);
1268 mono_mb_emit_ldloc (mb, array_var);
1269 mono_mb_emit_byte (mb, CEE_LDLEN);
1270 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1272 /* src is already set */
1275 mono_mb_emit_ldloc (mb, array_var);
1276 mono_mb_emit_ldloc (mb, index_var);
1277 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1278 mono_mb_emit_stloc (mb, 1);
1280 /* Do the conversion */
1281 emit_struct_conv (mb, eklass, TRUE);
1284 mono_mb_emit_add_to_local (mb, index_var, 1);
1286 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1288 mono_mb_patch_branch (mb, label3);
1290 /* restore the old src pointer */
1291 mono_mb_emit_ldloc (mb, src_var);
1292 mono_mb_emit_stloc (mb, 0);
1293 /* restore the old dst pointer */
1294 mono_mb_emit_ldloc (mb, dst_var);
1295 mono_mb_emit_stloc (mb, 1);
1299 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1300 MonoClass *eclass = mono_defaults.char_class;
1302 /* create a new array */
1303 mono_mb_emit_ldloc (mb, 1);
1304 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1305 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1306 mono_mb_emit_byte (mb, CEE_STIND_REF);
1308 mono_mb_emit_ldloc (mb, 1);
1309 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1312 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1315 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1316 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1317 mono_mb_emit_ldloc (mb, 1);
1318 mono_mb_emit_ldloc (mb, 0);
1319 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1320 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1326 mono_mb_emit_byte (mb, CEE_STIND_REF);
1328 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1329 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1330 mono_mb_emit_ldloc (mb, 1);
1331 mono_mb_emit_ldloc (mb, 0);
1332 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1333 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1335 mono_mb_emit_ldloc (mb, 1);
1336 mono_mb_emit_ldloc (mb, 0);
1337 mono_mb_emit_icall (mb, mono_string_from_utf16);
1339 mono_mb_emit_byte (mb, CEE_STIND_REF);
1341 case MONO_MARSHAL_CONV_STR_LPTSTR:
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_byte (mb, CEE_LDIND_I);
1346 mono_mb_emit_icall (mb, mono_string_from_utf16);
1348 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1350 mono_mb_emit_byte (mb, CEE_STIND_REF);
1352 case MONO_MARSHAL_CONV_STR_LPSTR:
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_ldloc (mb, 0);
1355 mono_mb_emit_byte (mb, CEE_LDIND_I);
1356 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1357 mono_mb_emit_byte (mb, CEE_STIND_REF);
1359 case MONO_MARSHAL_CONV_STR_LPWSTR:
1360 mono_mb_emit_ldloc (mb, 1);
1361 mono_mb_emit_ldloc (mb, 0);
1362 mono_mb_emit_byte (mb, CEE_LDIND_I);
1363 mono_mb_emit_icall (mb, mono_string_from_utf16);
1364 mono_mb_emit_byte (mb, CEE_STIND_REF);
1366 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1367 MonoClass *klass = mono_class_from_mono_type (type);
1368 int src_var, dst_var;
1370 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1371 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1373 /* *dst = new object */
1374 mono_mb_emit_ldloc (mb, 1);
1375 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1376 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1377 mono_mb_emit_byte (mb, CEE_STIND_REF);
1379 /* save the old src pointer */
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_stloc (mb, src_var);
1382 /* save the old dst pointer */
1383 mono_mb_emit_ldloc (mb, 1);
1384 mono_mb_emit_stloc (mb, dst_var);
1386 /* dst = pointer to newly created object data */
1387 mono_mb_emit_ldloc (mb, 1);
1388 mono_mb_emit_byte (mb, CEE_LDIND_I);
1389 mono_mb_emit_icon (mb, sizeof (MonoObject));
1390 mono_mb_emit_byte (mb, CEE_ADD);
1391 mono_mb_emit_stloc (mb, 1);
1393 emit_struct_conv (mb, klass, TRUE);
1395 /* restore the old src pointer */
1396 mono_mb_emit_ldloc (mb, src_var);
1397 mono_mb_emit_stloc (mb, 0);
1398 /* restore the old dst pointer */
1399 mono_mb_emit_ldloc (mb, dst_var);
1400 mono_mb_emit_stloc (mb, 1);
1403 case MONO_MARSHAL_CONV_DEL_FTN: {
1404 MonoClass *klass = mono_class_from_mono_type (type);
1406 mono_mb_emit_ldloc (mb, 1);
1407 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1408 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1409 mono_mb_emit_ldloc (mb, 0);
1410 mono_mb_emit_byte (mb, CEE_LDIND_I);
1411 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1412 mono_mb_emit_byte (mb, CEE_STIND_REF);
1415 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1416 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1420 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1421 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1422 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1423 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1425 #endif /* DISABLE_COM */
1427 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1429 * Passing SafeHandles as ref does not allow the unmanaged code
1430 * to change the SafeHandle value. If the value is changed,
1431 * we should issue a diagnostic exception (NotSupportedException)
1432 * that informs the user that changes to handles in unmanaged code
1435 * Since we currently have no access to the original
1436 * SafeHandle that was used during the marshalling,
1437 * for now we just ignore this, and ignore/discard any
1438 * changes that might have happened to the handle.
1443 case MONO_MARSHAL_CONV_HANDLEREF: {
1445 * Passing HandleRefs in a struct that is ref()ed does not
1446 * copy the values back to the HandleRef
1451 case MONO_MARSHAL_CONV_STR_BSTR:
1452 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1453 case MONO_MARSHAL_CONV_STR_TBSTR:
1454 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1456 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1458 mono_mb_emit_exception_marshal_directive (mb, msg);
1465 conv_to_icall (MonoMarshalConv conv)
1468 case MONO_MARSHAL_CONV_STR_LPWSTR:
1469 return mono_marshal_string_to_utf16;
1470 case MONO_MARSHAL_CONV_LPWSTR_STR:
1471 return mono_string_from_utf16;
1472 case MONO_MARSHAL_CONV_LPTSTR_STR:
1473 return mono_string_new_wrapper;
1474 case MONO_MARSHAL_CONV_LPSTR_STR:
1475 return mono_string_new_wrapper;
1476 case MONO_MARSHAL_CONV_STR_LPTSTR:
1478 return mono_marshal_string_to_utf16;
1480 return mono_string_to_lpstr;
1482 case MONO_MARSHAL_CONV_STR_LPSTR:
1483 return mono_string_to_lpstr;
1484 case MONO_MARSHAL_CONV_STR_BSTR:
1485 return mono_string_to_bstr;
1486 case MONO_MARSHAL_CONV_BSTR_STR:
1487 return mono_string_from_bstr;
1488 case MONO_MARSHAL_CONV_STR_TBSTR:
1489 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1490 return mono_string_to_ansibstr;
1491 case MONO_MARSHAL_CONV_SB_LPSTR:
1492 return mono_string_builder_to_utf8;
1493 case MONO_MARSHAL_CONV_SB_LPTSTR:
1495 return mono_string_builder_to_utf16;
1497 return mono_string_builder_to_utf8;
1499 case MONO_MARSHAL_CONV_SB_LPWSTR:
1500 return mono_string_builder_to_utf16;
1501 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1502 return mono_array_to_savearray;
1503 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1504 return mono_array_to_lparray;
1505 case MONO_MARSHAL_FREE_LPARRAY:
1506 return mono_free_lparray;
1507 case MONO_MARSHAL_CONV_DEL_FTN:
1508 return mono_delegate_to_ftnptr;
1509 case MONO_MARSHAL_CONV_FTN_DEL:
1510 return mono_ftnptr_to_delegate;
1511 case MONO_MARSHAL_CONV_LPSTR_SB:
1512 return mono_string_utf8_to_builder;
1513 case MONO_MARSHAL_CONV_LPTSTR_SB:
1515 return mono_string_utf16_to_builder;
1517 return mono_string_utf8_to_builder;
1519 case MONO_MARSHAL_CONV_LPWSTR_SB:
1520 return mono_string_utf16_to_builder;
1521 case MONO_MARSHAL_FREE_ARRAY:
1522 return mono_marshal_free_array;
1523 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1524 return mono_string_to_byvalstr;
1525 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1526 return mono_string_to_byvalwstr;
1528 g_assert_not_reached ();
1535 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1540 case MONO_MARSHAL_CONV_BOOL_I4:
1541 mono_mb_emit_ldloc (mb, 1);
1542 mono_mb_emit_ldloc (mb, 0);
1543 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1544 mono_mb_emit_byte (mb, CEE_STIND_I4);
1546 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1550 mono_mb_emit_byte (mb, CEE_NEG);
1551 mono_mb_emit_byte (mb, CEE_STIND_I2);
1553 case MONO_MARSHAL_CONV_STR_LPWSTR:
1554 case MONO_MARSHAL_CONV_STR_LPSTR:
1555 case MONO_MARSHAL_CONV_STR_LPTSTR:
1556 case MONO_MARSHAL_CONV_STR_BSTR:
1557 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1558 case MONO_MARSHAL_CONV_STR_TBSTR: {
1561 /* free space if free == true */
1562 mono_mb_emit_ldloc (mb, 2);
1563 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1564 mono_mb_emit_ldloc (mb, 1);
1565 mono_mb_emit_byte (mb, CEE_LDIND_I);
1566 mono_mb_emit_icall (mb, g_free);
1567 mono_mb_patch_short_branch (mb, pos);
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1572 mono_mb_emit_icall (mb, conv_to_icall (conv));
1573 mono_mb_emit_byte (mb, CEE_STIND_I);
1576 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1577 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1578 case MONO_MARSHAL_CONV_DEL_FTN:
1579 mono_mb_emit_ldloc (mb, 1);
1580 mono_mb_emit_ldloc (mb, 0);
1581 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1582 mono_mb_emit_icall (mb, conv_to_icall (conv));
1583 mono_mb_emit_byte (mb, CEE_STIND_I);
1585 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1586 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1589 mono_mb_emit_ldloc (mb, 1); /* dst */
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1592 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1593 mono_mb_emit_icall (mb, conv_to_icall (conv));
1596 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1597 MonoClass *eklass = NULL;
1600 if (type->type == MONO_TYPE_SZARRAY) {
1601 eklass = type->data.klass;
1603 g_assert_not_reached ();
1606 if (eklass->valuetype)
1607 esize = mono_class_native_size (eklass, NULL);
1609 esize = sizeof (gpointer);
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1613 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1615 if (eklass->blittable) {
1616 mono_mb_emit_ldloc (mb, 1);
1617 mono_mb_emit_ldloc (mb, 0);
1618 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1619 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1620 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1621 mono_mb_emit_byte (mb, CEE_PREFIX1);
1622 mono_mb_emit_byte (mb, CEE_CPBLK);
1624 int array_var, src_var, dst_var, index_var;
1625 guint32 label2, label3;
1627 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1628 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1629 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1632 mono_mb_emit_ldloc (mb, 0);
1633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1634 mono_mb_emit_stloc (mb, array_var);
1636 /* save the old src pointer */
1637 mono_mb_emit_ldloc (mb, 0);
1638 mono_mb_emit_stloc (mb, src_var);
1639 /* save the old dst pointer */
1640 mono_mb_emit_ldloc (mb, 1);
1641 mono_mb_emit_stloc (mb, dst_var);
1643 /* Emit marshalling loop */
1644 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1645 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1646 mono_mb_emit_stloc (mb, index_var);
1649 label2 = mono_mb_get_label (mb);
1650 mono_mb_emit_ldloc (mb, index_var);
1651 mono_mb_emit_ldloc (mb, array_var);
1652 mono_mb_emit_byte (mb, CEE_LDLEN);
1653 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1656 mono_mb_emit_ldloc (mb, array_var);
1657 mono_mb_emit_ldloc (mb, index_var);
1658 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1659 mono_mb_emit_stloc (mb, 0);
1661 /* dst is already set */
1663 /* Do the conversion */
1664 emit_struct_conv (mb, eklass, FALSE);
1667 mono_mb_emit_add_to_local (mb, index_var, 1);
1669 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1671 mono_mb_patch_branch (mb, label3);
1673 /* restore the old src pointer */
1674 mono_mb_emit_ldloc (mb, src_var);
1675 mono_mb_emit_stloc (mb, 0);
1676 /* restore the old dst pointer */
1677 mono_mb_emit_ldloc (mb, dst_var);
1678 mono_mb_emit_stloc (mb, 1);
1681 mono_mb_patch_branch (mb, pos);
1684 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1687 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1692 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1693 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1694 mono_mb_patch_short_branch (mb, pos);
1697 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1698 int src_var, dst_var;
1700 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1701 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1703 mono_mb_emit_ldloc (mb, 0);
1704 mono_mb_emit_byte (mb, CEE_LDIND_I);
1705 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1707 /* save the old src pointer */
1708 mono_mb_emit_ldloc (mb, 0);
1709 mono_mb_emit_stloc (mb, src_var);
1710 /* save the old dst pointer */
1711 mono_mb_emit_ldloc (mb, 1);
1712 mono_mb_emit_stloc (mb, dst_var);
1714 /* src = pointer to object data */
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_byte (mb, CEE_LDIND_I);
1717 mono_mb_emit_icon (mb, sizeof (MonoObject));
1718 mono_mb_emit_byte (mb, CEE_ADD);
1719 mono_mb_emit_stloc (mb, 0);
1721 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1723 /* restore the old src pointer */
1724 mono_mb_emit_ldloc (mb, src_var);
1725 mono_mb_emit_stloc (mb, 0);
1726 /* restore the old dst pointer */
1727 mono_mb_emit_ldloc (mb, dst_var);
1728 mono_mb_emit_stloc (mb, 1);
1730 mono_mb_patch_branch (mb, pos);
1735 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1736 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1737 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1738 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1740 #endif /* DISABLE_COM */
1742 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1745 mono_mb_emit_ldloc (mb, 0);
1746 mono_mb_emit_byte (mb, CEE_LDIND_I);
1747 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1748 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1749 mono_mb_patch_branch (mb, pos);
1751 /* Pull the handle field from SafeHandle */
1752 mono_mb_emit_ldloc (mb, 1);
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_byte (mb, CEE_LDIND_I);
1755 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1756 mono_mb_emit_byte (mb, CEE_LDIND_I);
1757 mono_mb_emit_byte (mb, CEE_STIND_I);
1761 case MONO_MARSHAL_CONV_HANDLEREF: {
1762 mono_mb_emit_ldloc (mb, 1);
1763 mono_mb_emit_ldloc (mb, 0);
1764 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1765 mono_mb_emit_byte (mb, CEE_ADD);
1766 mono_mb_emit_byte (mb, CEE_LDIND_I);
1767 mono_mb_emit_byte (mb, CEE_STIND_I);
1772 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1773 MonoException *exc = mono_get_exception_not_implemented (msg);
1774 g_warning ("%s", msg);
1776 mono_raise_exception (exc);
1782 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1783 MonoMarshalNative string_encoding)
1785 MonoMarshalType *info;
1789 emit_struct_conv(mb, klass->parent, to_object);
1791 info = mono_marshal_load_type_info (klass);
1793 if (info->native_size == 0)
1796 if (klass->blittable) {
1797 int msize = mono_class_value_size (klass, NULL);
1798 g_assert (msize == info->native_size);
1799 mono_mb_emit_ldloc (mb, 1);
1800 mono_mb_emit_ldloc (mb, 0);
1801 mono_mb_emit_icon (mb, msize);
1802 mono_mb_emit_byte (mb, CEE_PREFIX1);
1803 mono_mb_emit_byte (mb, CEE_CPBLK);
1805 mono_mb_emit_add_to_local (mb, 0, msize);
1806 mono_mb_emit_add_to_local (mb, 1, msize);
1810 if (klass != mono_defaults.safehandle_class) {
1811 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1812 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1813 mono_type_full_name (&klass->byval_arg));
1814 mono_mb_emit_exception_marshal_directive (mb, msg);
1819 for (i = 0; i < info->num_fields; i++) {
1820 MonoMarshalNative ntype;
1821 MonoMarshalConv conv;
1822 MonoType *ftype = info->fields [i].field->type;
1825 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1827 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1830 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1833 msize = klass->instance_size - info->fields [i].field->offset;
1834 usize = info->native_size - info->fields [i].offset;
1836 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1837 usize = info->fields [i + 1].offset - info->fields [i].offset;
1840 if (klass != mono_defaults.safehandle_class){
1842 * FIXME: Should really check for usize==0 and msize>0, but we apply
1843 * the layout to the managed structure as well.
1846 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1847 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1848 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1849 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1850 "reference field at the same offset as another field.",
1851 mono_type_full_name (&klass->byval_arg));
1856 case MONO_MARSHAL_CONV_NONE: {
1859 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1860 ftype->type == MONO_TYPE_U) {
1861 mono_mb_emit_ldloc (mb, 1);
1862 mono_mb_emit_ldloc (mb, 0);
1863 mono_mb_emit_byte (mb, CEE_LDIND_I);
1864 mono_mb_emit_byte (mb, CEE_STIND_I);
1875 case MONO_TYPE_BOOLEAN:
1878 case MONO_TYPE_CHAR:
1884 mono_mb_emit_ldloc (mb, 1);
1885 mono_mb_emit_ldloc (mb, 0);
1886 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1888 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1889 mono_mb_emit_byte (mb, CEE_STIND_I2);
1891 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1892 mono_mb_emit_byte (mb, CEE_STIND_I1);
1895 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1896 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1899 case MONO_TYPE_VALUETYPE: {
1900 int src_var, dst_var;
1902 if (ftype->data.klass->enumtype) {
1903 ftype = mono_class_enum_basetype (ftype->data.klass);
1907 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1908 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1910 /* save the old src pointer */
1911 mono_mb_emit_ldloc (mb, 0);
1912 mono_mb_emit_stloc (mb, src_var);
1913 /* save the old dst pointer */
1914 mono_mb_emit_ldloc (mb, 1);
1915 mono_mb_emit_stloc (mb, dst_var);
1917 emit_struct_conv (mb, ftype->data.klass, to_object);
1919 /* restore the old src pointer */
1920 mono_mb_emit_ldloc (mb, src_var);
1921 mono_mb_emit_stloc (mb, 0);
1922 /* restore the old dst pointer */
1923 mono_mb_emit_ldloc (mb, dst_var);
1924 mono_mb_emit_stloc (mb, 1);
1927 case MONO_TYPE_OBJECT: {
1930 static MonoMethod *variant_clear = NULL;
1931 static MonoMethod *get_object_for_native_variant = NULL;
1934 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1935 if (!get_object_for_native_variant)
1936 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1937 mono_mb_emit_ldloc (mb, 1);
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1940 mono_mb_emit_byte (mb, CEE_STIND_REF);
1942 mono_mb_emit_ldloc (mb, 0);
1943 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1946 static MonoMethod *get_native_variant_for_object = NULL;
1948 if (!get_native_variant_for_object)
1949 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1951 mono_mb_emit_ldloc (mb, 0);
1952 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1953 mono_mb_emit_ldloc (mb, 1);
1954 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1957 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1958 mono_mb_emit_exception_marshal_directive (mb, msg);
1964 g_warning ("marshaling type %02x not implemented", ftype->type);
1965 g_assert_not_reached ();
1970 int src_var, dst_var;
1972 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1973 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1975 /* save the old src pointer */
1976 mono_mb_emit_ldloc (mb, 0);
1977 mono_mb_emit_stloc (mb, src_var);
1978 /* save the old dst pointer */
1979 mono_mb_emit_ldloc (mb, 1);
1980 mono_mb_emit_stloc (mb, dst_var);
1983 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1985 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1987 /* restore the old src pointer */
1988 mono_mb_emit_ldloc (mb, src_var);
1989 mono_mb_emit_stloc (mb, 0);
1990 /* restore the old dst pointer */
1991 mono_mb_emit_ldloc (mb, dst_var);
1992 mono_mb_emit_stloc (mb, 1);
1997 mono_mb_emit_add_to_local (mb, 0, usize);
1998 mono_mb_emit_add_to_local (mb, 1, msize);
2000 mono_mb_emit_add_to_local (mb, 0, msize);
2001 mono_mb_emit_add_to_local (mb, 1, usize);
2007 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2009 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2013 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2015 /* Call DestroyStructure */
2016 /* FIXME: Only do this if needed */
2017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2018 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2019 mono_mb_emit_ldloc (mb, struct_var);
2020 mono_mb_emit_icall (mb, mono_struct_delete_old);
2024 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2026 int pos_noabort, pos_noex;
2028 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2029 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2030 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2031 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2033 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2034 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2036 mono_mb_emit_icall (mb, checkpoint_func);
2037 /* Throw the exception returned by the checkpoint function, if any */
2038 mono_mb_emit_byte (mb, CEE_DUP);
2039 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2040 mono_mb_emit_byte (mb, CEE_THROW);
2041 mono_mb_patch_branch (mb, pos_noex);
2042 mono_mb_emit_byte (mb, CEE_POP);
2044 mono_mb_patch_branch (mb, pos_noabort);
2048 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2050 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2053 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2057 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2059 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2063 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2065 emit_thread_interrupt_checkpoint (mb);
2069 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2071 emit_thread_force_interrupt_checkpoint (mb);
2074 #endif /* DISABLE_JIT */
2076 static MonoAsyncResult *
2077 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2079 MonoMulticastDelegate *mcast_delegate;
2083 g_assert (delegate);
2084 mcast_delegate = (MonoMulticastDelegate *) delegate;
2085 if (mcast_delegate->delegates != NULL)
2086 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2088 #ifndef DISABLE_REMOTING
2089 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2091 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2092 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2094 /* If the target is a proxy, make a direct call. Is proxy's work
2095 // to make the call asynchronous.
2097 MonoMethodMessage *msg;
2098 MonoDelegate *async_callback;
2100 MonoAsyncResult *ares;
2102 MonoArray *out_args;
2103 method = delegate->method;
2105 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2106 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2107 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2108 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2109 MONO_OBJECT_SETREF (msg, async_result, ares);
2110 msg->call_type = CallType_BeginInvoke;
2113 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2115 mono_raise_exception ((MonoException *) exc);
2121 klass = delegate->object.vtable->klass;
2123 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2125 method = mono_get_delegate_invoke (klass);
2128 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2134 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2136 int i, params_var, tmp_var;
2138 /* allocate local (pointer) *params[] */
2139 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2140 /* allocate local (pointer) tmp */
2141 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2143 /* alloate space on stack to store an array of pointers to the arguments */
2144 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2145 mono_mb_emit_byte (mb, CEE_PREFIX1);
2146 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2147 mono_mb_emit_stloc (mb, params_var);
2150 mono_mb_emit_ldloc (mb, params_var);
2151 mono_mb_emit_stloc (mb, tmp_var);
2153 if (save_this && sig->hasthis) {
2154 mono_mb_emit_ldloc (mb, tmp_var);
2155 mono_mb_emit_ldarg_addr (mb, 0);
2156 mono_mb_emit_byte (mb, CEE_STIND_I);
2157 /* tmp = tmp + sizeof (gpointer) */
2158 if (sig->param_count)
2159 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2163 for (i = 0; i < sig->param_count; i++) {
2164 mono_mb_emit_ldloc (mb, tmp_var);
2165 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2166 mono_mb_emit_byte (mb, CEE_STIND_I);
2167 /* tmp = tmp + sizeof (gpointer) */
2168 if (i < (sig->param_count - 1))
2169 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2175 #endif /* DISABLE_JIT */
2178 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2182 GString *res = g_string_new ("");
2185 g_string_append (res, prefix);
2186 g_string_append_c (res, '_');
2189 mono_type_get_desc (res, sig->ret, FALSE);
2192 g_string_append (res, "__this__");
2194 for (i = 0; i < sig->param_count; ++i) {
2195 g_string_append_c (res, '_');
2196 mono_type_get_desc (res, sig->params [i], FALSE);
2199 g_string_free (res, FALSE);
2204 * mono_marshal_get_string_encoding:
2206 * Return the string encoding which should be used for a given parameter.
2208 static MonoMarshalNative
2209 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2211 /* First try the parameter marshal info */
2213 if (spec->native == MONO_NATIVE_LPARRAY) {
2214 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2215 return spec->data.array_data.elem_type;
2218 return spec->native;
2222 return MONO_NATIVE_LPSTR;
2224 /* Then try the method level marshal info */
2225 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2226 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2227 return MONO_NATIVE_LPSTR;
2228 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2229 return MONO_NATIVE_LPWSTR;
2230 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2232 return MONO_NATIVE_LPWSTR;
2234 return MONO_NATIVE_LPSTR;
2237 return MONO_NATIVE_LPSTR;
2241 static MonoMarshalConv
2242 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2244 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2247 case MONO_NATIVE_LPWSTR:
2248 return MONO_MARSHAL_CONV_STR_LPWSTR;
2249 case MONO_NATIVE_LPSTR:
2250 case MONO_NATIVE_VBBYREFSTR:
2251 return MONO_MARSHAL_CONV_STR_LPSTR;
2252 case MONO_NATIVE_LPTSTR:
2253 return MONO_MARSHAL_CONV_STR_LPTSTR;
2254 case MONO_NATIVE_BSTR:
2255 return MONO_MARSHAL_CONV_STR_BSTR;
2257 return (MonoMarshalConv)-1;
2261 static MonoMarshalConv
2262 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2264 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2267 case MONO_NATIVE_LPWSTR:
2268 return MONO_MARSHAL_CONV_SB_LPWSTR;
2270 case MONO_NATIVE_LPSTR:
2271 return MONO_MARSHAL_CONV_SB_LPSTR;
2273 case MONO_NATIVE_LPTSTR:
2274 return MONO_MARSHAL_CONV_SB_LPTSTR;
2277 return (MonoMarshalConv)-1;
2281 static MonoMarshalConv
2282 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2284 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2289 case MONO_NATIVE_LPWSTR:
2291 return MONO_MARSHAL_CONV_LPWSTR_STR;
2292 case MONO_NATIVE_LPSTR:
2293 case MONO_NATIVE_VBBYREFSTR:
2294 return MONO_MARSHAL_CONV_LPSTR_STR;
2295 case MONO_NATIVE_LPTSTR:
2296 return MONO_MARSHAL_CONV_LPTSTR_STR;
2297 case MONO_NATIVE_BSTR:
2298 return MONO_MARSHAL_CONV_BSTR_STR;
2300 return (MonoMarshalConv)-1;
2304 static MonoMarshalConv
2305 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2307 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2312 case MONO_NATIVE_LPWSTR:
2314 * mono_string_builder_to_utf16 does not allocate a
2315 * new buffer, so no need to free it.
2318 return MONO_MARSHAL_CONV_LPWSTR_SB;
2319 case MONO_NATIVE_LPSTR:
2320 return MONO_MARSHAL_CONV_LPSTR_SB;
2322 case MONO_NATIVE_LPTSTR:
2323 return MONO_MARSHAL_CONV_LPTSTR_SB;
2326 return (MonoMarshalConv)-1;
2331 * Return whenever a field of a native structure or an array member needs to
2335 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2337 MonoMarshalNative encoding;
2340 case MONO_TYPE_VALUETYPE:
2341 /* FIXME: Optimize this */
2343 case MONO_TYPE_OBJECT:
2344 case MONO_TYPE_CLASS:
2345 if (t->data.klass == mono_defaults.stringbuilder_class) {
2347 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2351 case MONO_TYPE_STRING:
2352 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2353 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2360 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2363 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2366 mono_marshal_lock ();
2369 g_hash_table_new (hash_func, equal_func);
2370 mono_memory_barrier ();
2373 mono_marshal_unlock ();
2379 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2381 return get_cache (var, hash_func, equal_func);
2385 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2389 mono_marshal_lock ();
2390 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2391 mono_marshal_unlock ();
2398 * Create a MonoMethod from MB, set INFO as wrapper info.
2401 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2402 int max_stack, WrapperInfo *info)
2406 res = mono_mb_create_method (mb, sig, max_stack);
2408 mono_marshal_set_wrapper_info (res, info);
2412 /* Create the method from the builder and place it in the cache */
2414 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2415 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2416 int max_stack, WrapperInfo *info, gboolean *out_found)
2423 mono_marshal_lock ();
2424 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2425 mono_marshal_unlock ();
2428 newm = mono_mb_create_method (mb, sig, max_stack);
2429 mono_marshal_lock ();
2430 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2433 g_hash_table_insert (cache, key, res);
2434 mono_marshal_set_wrapper_info (res, info);
2435 mono_marshal_unlock ();
2439 mono_marshal_unlock ();
2440 mono_free_method (newm);
2448 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2449 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2452 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2456 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2459 int wrapper_type = wrapper->wrapper_type;
2462 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2465 info = mono_marshal_get_wrapper_info (wrapper);
2467 switch (wrapper_type) {
2468 case MONO_WRAPPER_REMOTING_INVOKE:
2469 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2470 case MONO_WRAPPER_XDOMAIN_INVOKE:
2471 m = info->d.remoting.method;
2472 if (wrapper->is_inflated) {
2476 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2477 * contains an uninflated method.
2479 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2480 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2484 case MONO_WRAPPER_SYNCHRONIZED:
2485 m = info->d.synchronized.method;
2486 if (wrapper->is_inflated) {
2489 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2490 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2494 case MONO_WRAPPER_UNBOX:
2495 return info->d.unbox.method;
2496 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2497 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2498 return info->d.managed_to_native.method;
2501 case MONO_WRAPPER_RUNTIME_INVOKE:
2502 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2503 return info->d.runtime_invoke.method;
2512 * mono_marshal_get_wrapper_info:
2514 * Retrieve the WrapperInfo structure associated with WRAPPER.
2517 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2519 g_assert (wrapper->wrapper_type);
2521 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2525 * mono_marshal_set_wrapper_info:
2527 * Set the WrapperInfo structure associated with the wrapper
2528 * method METHOD to INFO.
2531 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2535 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2538 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2543 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2547 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2548 info->subtype = subtype;
2553 * get_wrapper_target_class:
2555 * Return the class where a wrapper method should be placed.
2558 get_wrapper_target_class (MonoImage *image)
2565 * - can't put all wrappers into an mscorlib class, because they reference
2566 * metadata (signature) so they should be put into the same image as the
2567 * method they wrap, so they are unloaded together.
2568 * - putting them into a class with a type initalizer could cause the
2569 * initializer to be executed which can be a problem if the wrappers are
2571 * - putting them into an inflated class can cause problems if the the
2572 * class is deleted because it references an image which is unloaded.
2573 * To avoid these problems, we put the wrappers into the <Module> class of
2576 if (image_is_dynamic (image)) {
2577 klass = ((MonoDynamicImage*)image)->wrappers_type;
2579 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2580 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2588 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2589 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2593 * check_generic_wrapper_cache:
2595 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2596 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2597 * generic method definition.
2600 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2603 MonoMethod *inst, *def;
2604 MonoGenericContext *ctx;
2606 g_assert (orig_method->is_inflated);
2607 ctx = mono_method_get_context (orig_method);
2610 * Look for the instance
2612 res = mono_marshal_find_in_cache (cache, key);
2617 * Look for the definition
2619 def = mono_marshal_find_in_cache (cache, def_key);
2622 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2623 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2625 mono_memory_barrier ();
2626 mono_marshal_lock ();
2627 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2629 g_hash_table_insert (cache, key, inst);
2632 mono_marshal_unlock ();
2639 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2642 MonoMethod *inst, *res;
2645 * We use the same cache for the generic definition and the instances.
2647 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2648 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2649 mono_memory_barrier ();
2650 mono_marshal_lock ();
2651 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2653 g_hash_table_insert (cache, key, inst);
2656 mono_marshal_unlock ();
2661 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2665 MonoMethod *inst, *def;
2668 * Look for the instance
2670 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2675 * Look for the definition
2677 def = mono_marshal_find_in_cache (cache, def_method->klass);
2679 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2680 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2683 mono_memory_barrier ();
2684 mono_marshal_lock ();
2685 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2687 g_hash_table_insert (cache, orig_method->klass, inst);
2690 mono_marshal_unlock ();
2697 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2700 MonoMethod *inst, *res;
2703 * We use the same cache for the generic definition and the instances.
2705 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2706 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2708 mono_memory_barrier ();
2709 mono_marshal_lock ();
2710 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2712 g_hash_table_insert (cache, orig_method->klass, inst);
2715 mono_marshal_unlock ();
2720 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2722 MonoMethodSignature *sig;
2723 MonoMethodBuilder *mb;
2728 MonoGenericContext *ctx = NULL;
2729 MonoMethod *orig_method = NULL;
2731 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2732 !strcmp (method->name, "BeginInvoke"));
2735 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2737 if (method->is_inflated) {
2738 orig_method = method;
2739 ctx = &((MonoMethodInflated*)method)->context;
2740 method = ((MonoMethodInflated*)method)->declaring;
2743 sig = mono_signature_no_pinvoke (method);
2749 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2750 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2754 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2755 (GHashFunc)mono_signature_hash,
2756 (GCompareFunc)mono_metadata_signature_equal);
2757 if ((res = mono_marshal_find_in_cache (cache, sig)))
2761 g_assert (sig->hasthis);
2763 name = mono_signature_to_name (sig, "begin_invoke");
2765 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2767 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2771 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2773 mono_mb_emit_ldarg (mb, 0);
2774 mono_mb_emit_ldloc (mb, params_var);
2775 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2776 mono_mb_emit_byte (mb, CEE_RET);
2781 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2782 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2784 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2792 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2795 MonoDomain *domain = mono_domain_get ();
2796 MonoAsyncResult *ares;
2797 MonoMethod *method = NULL;
2798 MonoMethodSignature *sig;
2799 MonoMethodMessage *msg;
2800 MonoObject *res, *exc;
2801 MonoArray *out_args;
2804 g_assert (delegate);
2806 if (!delegate->method_info) {
2807 g_assert (delegate->method);
2808 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2809 mono_error_raise_exception (&error); /* FIXME don't raise here */
2810 MONO_OBJECT_SETREF (delegate, method_info, rm);
2813 if (!delegate->method_info || !delegate->method_info->method)
2814 g_assert_not_reached ();
2816 klass = delegate->object.vtable->klass;
2818 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2819 g_assert (method != NULL);
2821 sig = mono_signature_no_pinvoke (method);
2823 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2825 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2827 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."));
2831 if (ares->async_delegate != (MonoObject*)delegate) {
2832 mono_raise_exception (mono_get_exception_invalid_operation (
2833 "The IAsyncResult object provided does not match this delegate."));
2837 #ifndef DISABLE_REMOTING
2838 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2839 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2840 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2841 mono_error_raise_exception (&error); /* FIXME don't raise here */
2842 mono_message_init (domain, msg, delegate->method_info, NULL);
2843 msg->call_type = CallType_EndInvoke;
2844 MONO_OBJECT_SETREF (msg, async_result, ares);
2845 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2849 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2853 if (((MonoException*)exc)->stack_trace) {
2854 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2856 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2858 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2861 mono_raise_exception ((MonoException*)exc);
2864 mono_method_return_message_restore (method, params, out_args);
2871 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2873 MonoType *t = mono_type_get_underlying_type (return_type);
2875 if (return_type->byref)
2876 return_type = &mono_defaults.int_class->byval_arg;
2879 case MONO_TYPE_VOID:
2880 g_assert_not_reached ();
2883 case MONO_TYPE_STRING:
2884 case MONO_TYPE_CLASS:
2885 case MONO_TYPE_OBJECT:
2886 case MONO_TYPE_ARRAY:
2887 case MONO_TYPE_SZARRAY:
2891 case MONO_TYPE_BOOLEAN:
2894 case MONO_TYPE_CHAR:
2904 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2905 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2907 case MONO_TYPE_GENERICINST:
2908 if (!mono_type_generic_inst_is_valuetype (t))
2911 case MONO_TYPE_VALUETYPE: {
2912 MonoClass *klass = mono_class_from_mono_type (return_type);
2913 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2914 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2918 case MONO_TYPE_MVAR: {
2919 MonoClass *klass = mono_class_from_mono_type (return_type);
2920 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2924 g_warning ("type 0x%x not handled", return_type->type);
2925 g_assert_not_reached ();
2928 mono_mb_emit_byte (mb, CEE_RET);
2931 #endif /* DISABLE_JIT */
2934 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2936 MonoMethodSignature *sig;
2937 MonoMethodBuilder *mb;
2942 MonoGenericContext *ctx = NULL;
2943 MonoMethod *orig_method = NULL;
2945 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2946 !strcmp (method->name, "EndInvoke"));
2949 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2951 if (method->is_inflated) {
2952 orig_method = method;
2953 ctx = &((MonoMethodInflated*)method)->context;
2954 method = ((MonoMethodInflated*)method)->declaring;
2957 sig = mono_signature_no_pinvoke (method);
2963 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2964 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2968 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2969 (GHashFunc)mono_signature_hash,
2970 (GCompareFunc)mono_metadata_signature_equal);
2971 if ((res = mono_marshal_find_in_cache (cache, sig)))
2975 g_assert (sig->hasthis);
2977 name = mono_signature_to_name (sig, "end_invoke");
2979 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2981 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2985 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2987 mono_mb_emit_ldarg (mb, 0);
2988 mono_mb_emit_ldloc (mb, params_var);
2989 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2991 if (sig->ret->type == MONO_TYPE_VOID) {
2992 mono_mb_emit_byte (mb, CEE_POP);
2993 mono_mb_emit_byte (mb, CEE_RET);
2995 mono_mb_emit_restore_result (mb, sig->ret);
3000 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3001 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3003 res = mono_mb_create_and_cache (cache, sig,
3004 mb, sig, sig->param_count + 16);
3013 MonoMethodSignature *sig;
3015 } SignaturePointerPair;
3018 signature_pointer_pair_hash (gconstpointer data)
3020 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3022 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3026 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3028 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3029 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3033 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3035 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3037 return pair->pointer == user_data;
3041 free_signature_pointer_pair (SignaturePointerPair *pair)
3047 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3049 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3051 MonoMethodBuilder *mb;
3054 gpointer cache_key = NULL;
3055 SignaturePointerPair key;
3056 SignaturePointerPair *new_key;
3057 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3058 int pos0, pos1, pos2;
3060 MonoClass *target_class = NULL;
3061 gboolean closed_over_null = FALSE;
3062 MonoGenericContext *ctx = NULL;
3063 MonoGenericContainer *container = NULL;
3064 MonoMethod *orig_method = NULL;
3066 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3070 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3071 !strcmp (method->name, "Invoke"));
3073 invoke_sig = sig = mono_signature_no_pinvoke (method);
3076 * If the delegate target is null, and the target method is not static, a virtual
3077 * call is made to that method with the first delegate argument as this. This is
3078 * a non-documented .NET feature.
3081 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3082 if (target_method->is_inflated) {
3083 MonoType *target_type;
3085 g_assert (method->signature->hasthis);
3086 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3087 mono_method_get_context (method));
3088 target_class = mono_class_from_mono_type (target_type);
3090 target_class = target_method->klass;
3093 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3096 if (static_method_with_first_arg_bound) {
3097 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3098 g_assert (!callvirt);
3099 invoke_sig = mono_method_signature (target_method);
3103 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3105 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3106 orig_method = method;
3107 ctx = &((MonoMethodInflated*)method)->context;
3108 method = ((MonoMethodInflated*)method)->declaring;
3110 container = mono_method_get_generic_container (method);
3112 container = method->klass->generic_container;
3113 g_assert (container);
3115 invoke_sig = sig = mono_signature_no_pinvoke (method);
3122 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3123 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3126 cache_key = method->klass;
3127 } else if (static_method_with_first_arg_bound) {
3128 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3129 (GHashFunc)mono_signature_hash,
3130 (GCompareFunc)mono_metadata_signature_equal);
3132 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3134 res = mono_marshal_find_in_cache (cache, invoke_sig);
3137 cache_key = invoke_sig;
3138 } else if (callvirt) {
3139 GHashTable **cache_ptr;
3141 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3143 /* We need to cache the signature+method pair */
3144 mono_marshal_lock ();
3146 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3148 key.sig = invoke_sig;
3149 key.pointer = target_method;
3150 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3151 mono_marshal_unlock ();
3155 // Inflated methods should not be in this cache because it's not stored on the imageset.
3156 g_assert (!method->is_inflated);
3157 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3158 (GHashFunc)mono_signature_hash,
3159 (GCompareFunc)mono_metadata_signature_equal);
3160 res = mono_marshal_find_in_cache (cache, sig);
3166 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3167 static_sig->hasthis = 0;
3168 if (!static_method_with_first_arg_bound)
3169 invoke_sig = static_sig;
3171 if (static_method_with_first_arg_bound)
3172 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3173 else if (closed_over_null)
3174 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3176 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3178 name = mono_signature_to_name (invoke_sig, "invoke");
3180 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3182 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3186 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3188 /* allocate local 0 (object) */
3189 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3190 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3191 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3192 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3193 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3196 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3198 g_assert (sig->hasthis);
3201 * {type: sig->ret} res;
3202 * if (delegates == null) {
3203 * return this.<target> ( args .. );
3205 * int i = 0, len = this.delegates.Length;
3207 * res = this.delegates [i].Invoke ( args .. );
3208 * } while (++i < len);
3213 /* this wrapper can be used in unmanaged-managed transitions */
3214 emit_thread_interrupt_checkpoint (mb);
3216 /* delegates = this.delegates */
3217 mono_mb_emit_ldarg (mb, 0);
3218 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3219 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3220 mono_mb_emit_stloc (mb, local_delegates);
3223 /* if (delegates == null) */
3224 mono_mb_emit_ldloc (mb, local_delegates);
3225 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3227 /* return target.<target_method|method_ptr> ( args .. ); */
3229 /* target = d.target; */
3230 mono_mb_emit_ldarg (mb, 0);
3231 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3232 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3233 mono_mb_emit_stloc (mb, local_target);
3235 /*static methods with bound first arg can have null target and still be bound*/
3236 if (!static_method_with_first_arg_bound) {
3237 /* if target != null */
3238 mono_mb_emit_ldloc (mb, local_target);
3239 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3241 /* then call this->method_ptr nonstatic */
3244 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3246 mono_mb_emit_ldloc (mb, local_target);
3247 for (i = 0; i < sig->param_count; ++i)
3248 mono_mb_emit_ldarg (mb, i + 1);
3249 mono_mb_emit_ldarg (mb, 0);
3250 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3251 mono_mb_emit_byte (mb, CEE_LDIND_I);
3252 mono_mb_emit_ldarg (mb, 0);
3253 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3254 mono_mb_emit_byte (mb, CEE_LDIND_I);
3255 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3256 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3257 mono_mb_emit_byte (mb, CEE_RET);
3260 /* else [target == null] call this->method_ptr static */
3261 mono_mb_patch_branch (mb, pos0);
3265 if (!closed_over_null) {
3266 if (target_class->valuetype) {
3267 mono_mb_emit_ldarg (mb, 1);
3268 for (i = 1; i < sig->param_count; ++i)
3269 mono_mb_emit_ldarg (mb, i + 1);
3270 mono_mb_emit_op (mb, CEE_CALL, target_method);
3272 mono_mb_emit_ldarg (mb, 1);
3273 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3274 for (i = 1; i < sig->param_count; ++i)
3275 mono_mb_emit_ldarg (mb, i + 1);
3276 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3279 mono_mb_emit_byte (mb, CEE_LDNULL);
3280 for (i = 0; i < sig->param_count; ++i)
3281 mono_mb_emit_ldarg (mb, i + 1);
3282 mono_mb_emit_op (mb, CEE_CALL, target_method);
3285 if (static_method_with_first_arg_bound) {
3286 mono_mb_emit_ldloc (mb, local_target);
3287 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3288 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3290 for (i = 0; i < sig->param_count; ++i)
3291 mono_mb_emit_ldarg (mb, i + 1);
3292 mono_mb_emit_ldarg (mb, 0);
3293 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3294 mono_mb_emit_byte (mb, CEE_LDIND_I);
3295 mono_mb_emit_ldarg (mb, 0);
3296 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3297 mono_mb_emit_byte (mb, CEE_LDIND_I);
3298 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3299 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3302 mono_mb_emit_byte (mb, CEE_RET);
3304 /* else [delegates != null] */
3305 mono_mb_patch_branch (mb, pos2);
3307 /* len = delegates.Length; */
3308 mono_mb_emit_ldloc (mb, local_delegates);
3309 mono_mb_emit_byte (mb, CEE_LDLEN);
3310 mono_mb_emit_byte (mb, CEE_CONV_I4);
3311 mono_mb_emit_stloc (mb, local_len);
3314 mono_mb_emit_icon (mb, 0);
3315 mono_mb_emit_stloc (mb, local_i);
3317 pos1 = mono_mb_get_label (mb);
3319 /* d = delegates [i]; */
3320 mono_mb_emit_ldloc (mb, local_delegates);
3321 mono_mb_emit_ldloc (mb, local_i);
3322 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3323 mono_mb_emit_stloc (mb, local_d);
3325 /* res = d.Invoke ( args .. ); */
3326 mono_mb_emit_ldloc (mb, local_d);
3327 for (i = 0; i < sig->param_count; i++)
3328 mono_mb_emit_ldarg (mb, i + 1);
3330 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3333 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3334 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3337 mono_mb_emit_stloc (mb, local_res);
3340 mono_mb_emit_add_to_local (mb, local_i, 1);
3343 mono_mb_emit_ldloc (mb, local_i);
3344 mono_mb_emit_ldloc (mb, local_len);
3345 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3349 mono_mb_emit_ldloc (mb, local_res);
3350 mono_mb_emit_byte (mb, CEE_RET);
3352 mb->skip_visibility = 1;
3353 #endif /* DISABLE_JIT */
3355 info = mono_wrapper_info_create (mb, subtype);
3360 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3361 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3362 } else if (callvirt) {
3363 new_key = g_new0 (SignaturePointerPair, 1);
3366 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3370 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3374 /* mono_method_print_code (res); */
3380 * the returned method invokes all methods in a multicast delegate.
3383 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3385 gboolean callvirt = FALSE;
3386 gboolean static_method_with_first_arg_bound = FALSE;
3387 MonoMethod *target_method = NULL;
3388 MonoMethodSignature *sig;
3390 sig = mono_signature_no_pinvoke (method);
3392 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3394 target_method = del->method;
3397 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3398 static_method_with_first_arg_bound = TRUE;
3399 target_method = del->method;
3402 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3406 MonoMethodSignature *ctor_sig;
3407 MonoMethodSignature *sig;
3410 /* protected by the marshal lock, contains CtorSigPair pointers */
3411 static GSList *strsig_list = NULL;
3413 static MonoMethodSignature *
3414 lookup_string_ctor_signature (MonoMethodSignature *sig)
3416 MonoMethodSignature *callsig;
3420 mono_marshal_lock ();
3422 for (item = strsig_list; item; item = item->next) {
3423 cs = (CtorSigPair *)item->data;
3424 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3425 * because it is lock-free.
3427 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3432 mono_marshal_unlock ();
3436 static MonoMethodSignature *
3437 add_string_ctor_signature (MonoMethod *method)
3439 MonoMethodSignature *callsig;
3442 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3443 callsig->ret = &mono_defaults.string_class->byval_arg;
3444 cs = g_new (CtorSigPair, 1);
3446 cs->ctor_sig = mono_method_signature (method);
3448 mono_marshal_lock ();
3449 strsig_list = g_slist_prepend (strsig_list, cs);
3450 mono_marshal_unlock ();
3455 * mono_marshal_get_string_ctor_signature:
3457 * Return the modified signature used by string ctors (they return the newly created
3460 MonoMethodSignature*
3461 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3463 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3465 sig = add_string_ctor_signature (method);
3471 get_runtime_invoke_type (MonoType *t, gboolean ret)
3474 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3476 /* Can't share this with 'I' as that needs another indirection */
3477 return &mono_defaults.int_class->this_arg;
3480 if (MONO_TYPE_IS_REFERENCE (t))
3481 return &mono_defaults.object_class->byval_arg;
3484 /* The result needs to be boxed */
3489 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3492 return &mono_defaults.sbyte_class->byval_arg;
3494 return &mono_defaults.int16_class->byval_arg;
3496 return &mono_defaults.int32_class->byval_arg;
3499 return &mono_defaults.int64_class->byval_arg;
3500 case MONO_TYPE_BOOLEAN:
3501 return &mono_defaults.byte_class->byval_arg;
3502 case MONO_TYPE_CHAR:
3503 return &mono_defaults.uint16_class->byval_arg;
3505 return &mono_defaults.int_class->byval_arg;
3506 case MONO_TYPE_VALUETYPE:
3507 if (t->data.klass->enumtype) {
3508 t = mono_class_enum_basetype (t->data.klass);
3518 * mono_marshal_get_runtime_invoke_sig:
3520 * Return a common signature used for sharing runtime invoke wrappers.
3522 static MonoMethodSignature*
3523 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3525 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3528 res->generic_param_count = 0;
3529 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3530 for (i = 0; i < res->param_count; ++i)
3531 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3537 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3539 /* Can't share wrappers which return a vtype since it needs to be boxed */
3540 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))
3543 return mono_metadata_signature_equal (sig1, sig2);
3551 * Emit the call to the wrapper method from a runtime invoke wrapper.
3554 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3555 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3557 gboolean virtual_, gboolean need_direct_wrapper)
3559 static MonoString *string_dummy = NULL;
3561 int *tmp_nullable_locals;
3562 gboolean void_ret = FALSE;
3563 gboolean string_ctor = method && method->string_ctor;
3565 /* to make it work with our special string constructors */
3566 if (!string_dummy) {
3567 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3568 string_dummy = mono_string_new_wrapper ("dummy");
3572 g_assert (sig->hasthis);
3573 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3578 if (mono_gc_is_moving ()) {
3579 mono_mb_emit_ptr (mb, &string_dummy);
3580 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3582 mono_mb_emit_ptr (mb, string_dummy);
3585 mono_mb_emit_ldarg (mb, 0);
3589 tmp_nullable_locals = g_new0 (int, sig->param_count);
3591 for (i = 0; i < sig->param_count; i++) {
3592 MonoType *t = sig->params [i];
3595 mono_mb_emit_ldarg (mb, 1);
3597 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3598 mono_mb_emit_byte (mb, CEE_ADD);
3602 mono_mb_emit_byte (mb, CEE_LDIND_I);
3603 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3604 * So to make this work we unbox it to a local variablee and push a reference to that.
3606 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3607 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3609 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3610 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3611 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3616 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3617 type = sig->params [i]->type;
3621 case MONO_TYPE_BOOLEAN:
3625 case MONO_TYPE_CHAR:
3634 mono_mb_emit_byte (mb, CEE_LDIND_I);
3635 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3637 case MONO_TYPE_STRING:
3638 case MONO_TYPE_CLASS:
3639 case MONO_TYPE_ARRAY:
3641 case MONO_TYPE_SZARRAY:
3642 case MONO_TYPE_OBJECT:
3643 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3645 case MONO_TYPE_GENERICINST:
3646 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3647 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3652 case MONO_TYPE_VALUETYPE:
3653 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3654 type = mono_class_enum_basetype (t->data.klass)->type;
3657 mono_mb_emit_byte (mb, CEE_LDIND_I);
3658 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3659 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3660 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3661 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3663 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3667 g_assert_not_reached ();
3672 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3673 } else if (need_direct_wrapper) {
3674 mono_mb_emit_op (mb, CEE_CALL, method);
3676 mono_mb_emit_ldarg (mb, 3);
3677 mono_mb_emit_calli (mb, callsig);
3680 if (sig->ret->byref) {
3682 g_assert_not_reached ();
3685 switch (sig->ret->type) {
3686 case MONO_TYPE_VOID:
3690 case MONO_TYPE_BOOLEAN:
3691 case MONO_TYPE_CHAR:
3704 case MONO_TYPE_VALUETYPE:
3705 case MONO_TYPE_TYPEDBYREF:
3706 case MONO_TYPE_GENERICINST:
3707 /* box value types */
3708 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3710 case MONO_TYPE_STRING:
3711 case MONO_TYPE_CLASS:
3712 case MONO_TYPE_ARRAY:
3713 case MONO_TYPE_SZARRAY:
3714 case MONO_TYPE_OBJECT:
3718 /* The result is an IntPtr */
3719 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3722 g_assert_not_reached ();
3726 mono_mb_emit_stloc (mb, loc_res);
3728 /* Convert back nullable-byref arguments */
3729 for (i = 0; i < sig->param_count; i++) {
3730 MonoType *t = sig->params [i];
3733 * Box the result and put it back into the array, the caller will have
3734 * to obtain it from there.
3736 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3737 mono_mb_emit_ldarg (mb, 1);
3738 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3739 mono_mb_emit_byte (mb, CEE_ADD);
3741 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3742 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3744 mono_mb_emit_byte (mb, CEE_STIND_REF);
3748 g_free (tmp_nullable_locals);
3752 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3753 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3754 gboolean virtual_, gboolean need_direct_wrapper)
3757 MonoExceptionClause *clause;
3758 int loc_res, loc_exc;
3760 /* The wrapper looks like this:
3766 * } catch (Exception e) {
3774 /* allocate local 0 (object) tmp */
3775 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3776 /* allocate local 1 (object) exc */
3777 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3779 /* *exc is assumed to be initialized to NULL by the caller */
3781 mono_mb_emit_byte (mb, CEE_LDARG_2);
3782 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3787 labels [1] = mono_mb_get_label (mb);
3788 emit_thread_force_interrupt_checkpoint (mb);
3789 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3791 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3793 /* Add a try clause around the call */
3794 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3795 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3796 clause->data.catch_class = mono_defaults.exception_class;
3797 clause->try_offset = labels [1];
3798 clause->try_len = mono_mb_get_label (mb) - labels [1];
3800 clause->handler_offset = mono_mb_get_label (mb);
3803 mono_mb_emit_stloc (mb, loc_exc);
3804 mono_mb_emit_byte (mb, CEE_LDARG_2);
3805 mono_mb_emit_ldloc (mb, loc_exc);
3806 mono_mb_emit_byte (mb, CEE_STIND_REF);
3808 mono_mb_emit_branch (mb, CEE_LEAVE);
3810 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3812 mono_mb_set_clauses (mb, 1, clause);
3814 mono_mb_patch_branch (mb, labels [2]);
3815 mono_mb_emit_ldloc (mb, loc_res);
3816 mono_mb_emit_byte (mb, CEE_RET);
3821 mono_mb_patch_branch (mb, labels [0]);
3822 emit_thread_force_interrupt_checkpoint (mb);
3823 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3825 mono_mb_emit_ldloc (mb, 0);
3826 mono_mb_emit_byte (mb, CEE_RET);
3831 * generates IL code for the runtime invoke function
3832 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3834 * we also catch exceptions if exc != null
3835 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3836 * it means that the compiled code for METHOD does not have to be looked up
3837 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3838 * its METHOD argument.
3841 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3843 MonoMethodSignature *sig, *csig, *callsig;
3844 MonoMethodBuilder *mb;
3845 GHashTable *cache = NULL;
3846 MonoClass *target_klass;
3847 MonoMethod *res = NULL;
3848 static MonoMethodSignature *cctor_signature = NULL;
3849 static MonoMethodSignature *finalize_signature = NULL;
3851 const char *param_names [16];
3852 gboolean need_direct_wrapper = FALSE;
3857 if (!cctor_signature) {
3858 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3859 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3861 if (!finalize_signature) {
3862 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3863 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3864 finalize_signature->hasthis = 1;
3868 need_direct_wrapper = TRUE;
3871 * Use a separate cache indexed by methods to speed things up and to avoid the
3872 * boundless mempool growth caused by the signature_dup stuff below.
3875 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3877 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3879 res = mono_marshal_find_in_cache (cache, method);
3883 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3884 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3886 * Array Get/Set/Address methods. The JIT implements them using inline code
3887 * so we need to create an invoke wrapper which calls the method directly.
3889 need_direct_wrapper = TRUE;
3892 if (method->string_ctor) {
3893 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3895 callsig = add_string_ctor_signature (method);
3896 /* Can't share this as we push a string as this */
3897 need_direct_wrapper = TRUE;
3899 if (method_is_dynamic (method))
3900 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3902 callsig = mono_method_signature (method);
3905 sig = mono_method_signature (method);
3907 target_klass = get_wrapper_target_class (method->klass->image);
3909 /* Try to share wrappers for non-corlib methods with simple signatures */
3910 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3911 callsig = cctor_signature;
3912 target_klass = mono_defaults.object_class;
3913 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3914 callsig = finalize_signature;
3915 target_klass = mono_defaults.object_class;
3918 if (need_direct_wrapper) {
3919 /* Already searched at the start */
3921 MonoMethodSignature *tmp_sig;
3923 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3924 GHashTable **cache_table = NULL;
3926 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3927 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3929 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3931 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3932 (GCompareFunc)runtime_invoke_signature_equal);
3934 /* from mono_marshal_find_in_cache */
3935 mono_marshal_lock ();
3936 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3937 mono_marshal_unlock ();
3944 /* Make a copy of the signature from the image mempool */
3946 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3950 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3952 csig->ret = &mono_defaults.object_class->byval_arg;
3953 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3954 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3956 csig->params [0] = &mono_defaults.object_class->byval_arg;
3957 csig->params [1] = &mono_defaults.int_class->byval_arg;
3958 csig->params [2] = &mono_defaults.int_class->byval_arg;
3959 csig->params [3] = &mono_defaults.int_class->byval_arg;
3962 /* This is called from runtime code so it has to be cdecl */
3963 csig->call_convention = MONO_CALL_C;
3966 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3967 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3971 param_names [0] = "this";
3972 param_names [1] = "params";
3973 param_names [2] = "exc";
3974 param_names [3] = "method";
3975 mono_mb_set_param_names (mb, param_names);
3977 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3980 if (need_direct_wrapper) {
3982 mb->skip_visibility = 1;
3984 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3985 info->d.runtime_invoke.method = method;
3986 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3988 /* taken from mono_mb_create_and_cache */
3989 mono_marshal_lock ();
3990 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3991 mono_marshal_unlock ();
3993 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3994 info->d.runtime_invoke.sig = callsig;
3996 /* Somebody may have created it before us */
3999 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4001 mono_marshal_lock ();
4002 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4004 GHashTable *direct_cache;
4006 g_hash_table_insert (cache, callsig, res);
4007 /* Can't insert it into wrapper_hash since the key is a signature */
4008 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4010 g_hash_table_insert (direct_cache, method, res);
4012 mono_free_method (newm);
4014 mono_marshal_unlock ();
4017 /* end mono_mb_create_and_cache */
4026 * mono_marshal_get_runtime_invoke_dynamic:
4028 * Return a method which can be used to invoke managed methods from native code
4030 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4031 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4032 * ARGS should point to an architecture specific structure containing
4033 * the arguments and space for the return value.
4034 * The other arguments are the same as for runtime_invoke (), except that
4035 * ARGS should contain the this argument too.
4036 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4037 * is only one copy of it, which is useful in full-aot.
4038 * The wrapper info for the wrapper is a WrapperInfo structure.
4041 mono_marshal_get_runtime_invoke_dynamic (void)
4043 static MonoMethod *method;
4044 MonoMethodSignature *csig;
4045 MonoExceptionClause *clause;
4046 MonoMethodBuilder *mb;
4054 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4056 csig->ret = &mono_defaults.void_class->byval_arg;
4057 csig->params [0] = &mono_defaults.int_class->byval_arg;
4058 csig->params [1] = &mono_defaults.int_class->byval_arg;
4059 csig->params [2] = &mono_defaults.int_class->byval_arg;
4060 csig->params [3] = &mono_defaults.int_class->byval_arg;
4062 name = g_strdup ("runtime_invoke_dynamic");
4063 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4067 /* allocate local 0 (object) tmp */
4068 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4069 /* allocate local 1 (object) exc */
4070 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4072 /* cond set *exc to null */
4073 mono_mb_emit_byte (mb, CEE_LDARG_1);
4074 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4075 mono_mb_emit_byte (mb, 3);
4076 mono_mb_emit_byte (mb, CEE_LDARG_1);
4077 mono_mb_emit_byte (mb, CEE_LDNULL);
4078 mono_mb_emit_byte (mb, CEE_STIND_REF);
4080 emit_thread_force_interrupt_checkpoint (mb);
4082 mono_mb_emit_byte (mb, CEE_LDARG_0);
4083 mono_mb_emit_byte (mb, CEE_LDARG_2);
4084 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4085 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4087 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4089 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4090 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4091 clause->try_len = mono_mb_get_label (mb);
4094 clause->data.filter_offset = mono_mb_get_label (mb);
4096 mono_mb_emit_byte (mb, CEE_POP);
4097 mono_mb_emit_byte (mb, CEE_LDARG_1);
4098 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4099 mono_mb_emit_byte (mb, CEE_PREFIX1);
4100 mono_mb_emit_byte (mb, CEE_CGT_UN);
4101 mono_mb_emit_byte (mb, CEE_PREFIX1);
4102 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4104 clause->handler_offset = mono_mb_get_label (mb);
4107 /* store exception */
4108 mono_mb_emit_stloc (mb, 1);
4110 mono_mb_emit_byte (mb, CEE_LDARG_1);
4111 mono_mb_emit_ldloc (mb, 1);
4112 mono_mb_emit_byte (mb, CEE_STIND_REF);
4114 mono_mb_emit_byte (mb, CEE_LDNULL);
4115 mono_mb_emit_stloc (mb, 0);
4117 /* Check for the abort exception */
4118 mono_mb_emit_ldloc (mb, 1);
4119 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4120 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4122 /* Delay the abort exception */
4123 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4125 mono_mb_patch_short_branch (mb, posna);
4126 mono_mb_emit_branch (mb, CEE_LEAVE);
4128 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4130 mono_mb_set_clauses (mb, 1, clause);
4133 mono_mb_patch_branch (mb, pos);
4134 //mono_mb_emit_ldloc (mb, 0);
4135 mono_mb_emit_byte (mb, CEE_RET);
4136 #endif /* DISABLE_JIT */
4138 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4140 mono_marshal_lock ();
4141 /* double-checked locking */
4143 method = mono_mb_create (mb, csig, 16, info);
4145 mono_marshal_unlock ();
4153 * mono_marshal_get_runtime_invoke_for_sig:
4155 * Return a runtime invoke wrapper for a given signature.
4158 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4160 MonoMethodSignature *csig, *callsig;
4161 MonoMethodBuilder *mb;
4163 GHashTable *cache = NULL;
4164 GHashTable **cache_table = NULL;
4165 MonoMethod *res = NULL;
4167 const char *param_names [16];
4170 /* A simplified version of mono_marshal_get_runtime_invoke */
4172 image = mono_defaults.corlib;
4174 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4176 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4178 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4179 (GCompareFunc)runtime_invoke_signature_equal);
4181 /* from mono_marshal_find_in_cache */
4182 mono_marshal_lock ();
4183 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4184 mono_marshal_unlock ();
4191 /* Make a copy of the signature from the image mempool */
4192 callsig = mono_metadata_signature_dup_full (image, callsig);
4194 csig = mono_metadata_signature_alloc (image, 4);
4195 csig->ret = &mono_defaults.object_class->byval_arg;
4196 csig->params [0] = &mono_defaults.object_class->byval_arg;
4197 csig->params [1] = &mono_defaults.int_class->byval_arg;
4198 csig->params [2] = &mono_defaults.int_class->byval_arg;
4199 csig->params [3] = &mono_defaults.int_class->byval_arg;
4202 /* This is called from runtime code so it has to be cdecl */
4203 csig->call_convention = MONO_CALL_C;
4206 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4207 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4211 param_names [0] = "this";
4212 param_names [1] = "params";
4213 param_names [2] = "exc";
4214 param_names [3] = "method";
4215 mono_mb_set_param_names (mb, param_names);
4217 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4220 /* taken from mono_mb_create_and_cache */
4221 mono_marshal_lock ();
4222 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4223 mono_marshal_unlock ();
4225 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4226 info->d.runtime_invoke.sig = callsig;
4228 /* Somebody may have created it before us */
4231 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4233 mono_marshal_lock ();
4234 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4237 g_hash_table_insert (cache, callsig, res);
4239 mono_free_method (newm);
4241 mono_marshal_unlock ();
4244 /* end mono_mb_create_and_cache */
4253 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4255 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4256 klass->name_space, klass->name);
4258 mono_mb_emit_exception_marshal_directive (mb, msg);
4263 * generates IL code for the icall wrapper (the generated method
4264 * calls the unmanaged code in func)
4265 * The wrapper info for the wrapper is a WrapperInfo structure.
4268 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4270 MonoMethodSignature *csig, *csig2;
4271 MonoMethodBuilder *mb;
4276 g_assert (sig->pinvoke);
4278 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4280 mb->method->save_lmf = 1;
4282 /* Add an explicit this argument */
4284 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4286 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4290 mono_mb_emit_byte (mb, CEE_LDARG_0);
4292 for (i = 0; i < sig->param_count; i++)
4293 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4295 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4296 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4297 mono_mb_emit_calli (mb, csig2);
4298 if (check_exceptions)
4299 emit_thread_interrupt_checkpoint (mb);
4300 mono_mb_emit_byte (mb, CEE_RET);
4303 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4305 if (csig->call_convention == MONO_CALL_VARARG)
4306 csig->call_convention = 0;
4308 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4309 info->d.icall.func = (gpointer)func;
4310 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4317 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4318 MonoMarshalSpec *spec,
4319 int conv_arg, MonoType **conv_arg_type,
4320 MarshalAction action)
4323 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4324 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4329 static MonoClass *ICustomMarshaler = NULL;
4330 static MonoMethod *cleanup_native, *cleanup_managed;
4331 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4332 MonoMethod *get_instance = NULL;
4333 MonoMethodBuilder *mb = m->mb;
4334 char *exception_msg = NULL;
4338 if (!ICustomMarshaler) {
4339 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4341 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4342 goto handle_exception;
4345 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4346 g_assert (cleanup_native);
4347 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4348 g_assert (cleanup_managed);
4349 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4350 g_assert (marshal_managed_to_native);
4351 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4352 g_assert (marshal_native_to_managed);
4354 mono_memory_barrier ();
4355 ICustomMarshaler = klass;
4358 if (spec->data.custom_data.image)
4359 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4361 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4362 g_assert (mtype != NULL);
4363 mklass = mono_class_from_mono_type (mtype);
4364 g_assert (mklass != NULL);
4366 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4367 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4369 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4371 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4372 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4373 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4374 (get_sig->params [0]->type != MONO_TYPE_STRING))
4375 get_instance = NULL;
4379 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);
4382 /* Throw exception and emit compensation code if neccesary */
4383 if (exception_msg) {
4385 case MARSHAL_ACTION_CONV_IN:
4386 case MARSHAL_ACTION_CONV_RESULT:
4387 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4388 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4389 mono_mb_emit_byte (mb, CEE_POP);
4391 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4392 g_free (exception_msg);
4395 case MARSHAL_ACTION_PUSH:
4396 mono_mb_emit_byte (mb, CEE_LDNULL);
4404 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4405 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4408 case MARSHAL_ACTION_CONV_IN:
4410 case MONO_TYPE_CLASS:
4411 case MONO_TYPE_OBJECT:
4412 case MONO_TYPE_STRING:
4413 case MONO_TYPE_ARRAY:
4414 case MONO_TYPE_SZARRAY:
4415 case MONO_TYPE_VALUETYPE:
4419 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4420 g_assert_not_reached ();
4424 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4426 mono_mb_emit_byte (mb, CEE_LDNULL);
4427 mono_mb_emit_stloc (mb, conv_arg);
4429 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4432 /* Minic MS.NET behavior */
4433 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4436 /* Check for null */
4437 mono_mb_emit_ldarg (mb, argnum);
4439 mono_mb_emit_byte (mb, CEE_LDIND_I);
4440 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4442 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4444 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4446 mono_mb_emit_ldarg (mb, argnum);
4448 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4450 if (t->type == MONO_TYPE_VALUETYPE) {
4452 * Since we can't determine the type of the argument, we
4453 * will assume the unmanaged function takes a pointer.
4455 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4457 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4460 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4461 mono_mb_emit_stloc (mb, conv_arg);
4463 mono_mb_patch_branch (mb, pos2);
4466 case MARSHAL_ACTION_CONV_OUT:
4467 /* Check for null */
4468 mono_mb_emit_ldloc (mb, conv_arg);
4469 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4472 mono_mb_emit_ldarg (mb, argnum);
4474 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4476 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4478 mono_mb_emit_ldloc (mb, conv_arg);
4479 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4480 mono_mb_emit_byte (mb, CEE_STIND_REF);
4481 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4482 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4484 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4486 mono_mb_emit_ldloc (mb, conv_arg);
4487 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4489 /* We have nowhere to store the result */
4490 mono_mb_emit_byte (mb, CEE_POP);
4493 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4495 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4497 mono_mb_emit_ldloc (mb, conv_arg);
4499 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4501 mono_mb_patch_branch (mb, pos2);
4504 case MARSHAL_ACTION_PUSH:
4506 mono_mb_emit_ldloc_addr (mb, conv_arg);
4508 mono_mb_emit_ldloc (mb, conv_arg);
4511 case MARSHAL_ACTION_CONV_RESULT:
4512 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4514 mono_mb_emit_stloc (mb, 3);
4516 mono_mb_emit_ldloc (mb, 3);
4517 mono_mb_emit_stloc (mb, loc1);
4519 /* Check for null */
4520 mono_mb_emit_ldloc (mb, 3);
4521 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4523 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4525 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4526 mono_mb_emit_byte (mb, CEE_DUP);
4528 mono_mb_emit_ldloc (mb, 3);
4529 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4530 mono_mb_emit_stloc (mb, 3);
4532 mono_mb_emit_ldloc (mb, loc1);
4533 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4535 mono_mb_patch_branch (mb, pos2);
4538 case MARSHAL_ACTION_MANAGED_CONV_IN:
4539 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4541 mono_mb_emit_byte (mb, CEE_LDNULL);
4542 mono_mb_emit_stloc (mb, conv_arg);
4544 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4547 /* Check for null */
4548 mono_mb_emit_ldarg (mb, argnum);
4550 mono_mb_emit_byte (mb, CEE_LDIND_I);
4551 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4553 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4554 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4556 mono_mb_emit_ldarg (mb, argnum);
4558 mono_mb_emit_byte (mb, CEE_LDIND_I);
4560 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4561 mono_mb_emit_stloc (mb, conv_arg);
4563 mono_mb_patch_branch (mb, pos2);
4566 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4567 g_assert (!t->byref);
4569 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4571 mono_mb_emit_stloc (mb, 3);
4573 mono_mb_emit_ldloc (mb, 3);
4574 mono_mb_emit_stloc (mb, loc1);
4576 /* Check for null */
4577 mono_mb_emit_ldloc (mb, 3);
4578 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4580 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4581 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4582 mono_mb_emit_byte (mb, CEE_DUP);
4584 mono_mb_emit_ldloc (mb, 3);
4585 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4586 mono_mb_emit_stloc (mb, 3);
4588 mono_mb_emit_ldloc (mb, loc1);
4589 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4591 mono_mb_patch_branch (mb, pos2);
4594 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4596 /* Check for null */
4597 mono_mb_emit_ldloc (mb, conv_arg);
4598 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4601 mono_mb_emit_ldarg (mb, argnum);
4603 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4605 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4607 mono_mb_emit_ldloc (mb, conv_arg);
4608 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4609 mono_mb_emit_byte (mb, CEE_STIND_I);
4612 /* Call CleanUpManagedData */
4613 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4615 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4617 mono_mb_emit_ldloc (mb, conv_arg);
4618 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4620 mono_mb_patch_branch (mb, pos2);
4624 g_assert_not_reached ();
4632 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4633 MonoMarshalSpec *spec,
4634 int conv_arg, MonoType **conv_arg_type,
4635 MarshalAction action)
4638 MonoMethodBuilder *mb = m->mb;
4641 case MARSHAL_ACTION_CONV_IN: {
4642 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4644 g_assert (t->type == MONO_TYPE_OBJECT);
4645 g_assert (!t->byref);
4647 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4648 mono_mb_emit_ldarg (mb, argnum);
4649 mono_mb_emit_icon (mb, encoding);
4650 mono_mb_emit_icon (mb, t->attrs);
4651 mono_mb_emit_icall (mb, mono_marshal_asany);
4652 mono_mb_emit_stloc (mb, conv_arg);
4656 case MARSHAL_ACTION_PUSH:
4657 mono_mb_emit_ldloc (mb, conv_arg);
4660 case MARSHAL_ACTION_CONV_OUT: {
4661 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4663 mono_mb_emit_ldarg (mb, argnum);
4664 mono_mb_emit_ldloc (mb, conv_arg);
4665 mono_mb_emit_icon (mb, encoding);
4666 mono_mb_emit_icon (mb, t->attrs);
4667 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4672 g_assert_not_reached ();
4679 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4680 MonoMarshalSpec *spec,
4681 int conv_arg, MonoType **conv_arg_type,
4682 MarshalAction action)
4685 MonoMethodBuilder *mb = m->mb;
4686 MonoClass *klass, *date_time_class;
4689 klass = mono_class_from_mono_type (t);
4691 date_time_class = mono_class_get_date_time_class ();
4694 case MARSHAL_ACTION_CONV_IN:
4695 if (klass == date_time_class) {
4696 /* Convert it to an OLE DATE type */
4697 static MonoMethod *to_oadate;
4700 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4701 g_assert (to_oadate);
4703 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4706 mono_mb_emit_ldarg (mb, argnum);
4707 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4710 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4712 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4714 mono_mb_emit_ldarg_addr (mb, argnum);
4715 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4716 mono_mb_emit_stloc (mb, conv_arg);
4720 mono_mb_patch_branch (mb, pos);
4724 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4725 klass->blittable || klass->enumtype)
4728 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4730 /* store the address of the source into local variable 0 */
4732 mono_mb_emit_ldarg (mb, argnum);
4734 mono_mb_emit_ldarg_addr (mb, argnum);
4736 mono_mb_emit_stloc (mb, 0);
4738 /* allocate space for the native struct and
4739 * store the address into local variable 1 (dest) */
4740 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4741 mono_mb_emit_byte (mb, CEE_PREFIX1);
4742 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4743 mono_mb_emit_stloc (mb, conv_arg);
4746 mono_mb_emit_ldloc (mb, 0);
4747 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4750 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4752 mono_mb_emit_ldloc (mb, conv_arg);
4753 mono_mb_emit_stloc (mb, 1);
4755 /* emit valuetype conversion code */
4756 emit_struct_conv (mb, klass, FALSE);
4760 mono_mb_patch_branch (mb, pos);
4763 case MARSHAL_ACTION_PUSH:
4764 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4766 g_assert (!t->byref);
4768 /* Have to change the signature since the vtype is passed byref */
4769 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4771 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4772 klass->blittable || klass->enumtype)
4773 mono_mb_emit_ldarg_addr (mb, argnum);
4775 mono_mb_emit_ldloc (mb, conv_arg);
4779 if (klass == date_time_class) {
4781 mono_mb_emit_ldloc_addr (mb, conv_arg);
4783 mono_mb_emit_ldloc (mb, conv_arg);
4787 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4788 klass->blittable || klass->enumtype) {
4789 mono_mb_emit_ldarg (mb, argnum);
4792 mono_mb_emit_ldloc (mb, conv_arg);
4794 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4795 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4799 case MARSHAL_ACTION_CONV_OUT:
4800 if (klass == date_time_class) {
4801 /* Convert from an OLE DATE type */
4802 static MonoMethod *from_oadate;
4807 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4809 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4810 g_assert (from_oadate);
4812 mono_mb_emit_ldarg (mb, argnum);
4813 mono_mb_emit_ldloc (mb, conv_arg);
4814 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4815 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4820 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4821 klass->blittable || klass->enumtype)
4825 /* dst = argument */
4826 mono_mb_emit_ldarg (mb, argnum);
4827 mono_mb_emit_stloc (mb, 1);
4829 mono_mb_emit_ldloc (mb, 1);
4830 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4832 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4833 /* src = tmp_locals [i] */
4834 mono_mb_emit_ldloc (mb, conv_arg);
4835 mono_mb_emit_stloc (mb, 0);
4837 /* emit valuetype conversion code */
4838 emit_struct_conv (mb, klass, TRUE);
4842 emit_struct_free (mb, klass, conv_arg);
4845 mono_mb_patch_branch (mb, pos);
4848 case MARSHAL_ACTION_CONV_RESULT:
4849 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4851 mono_mb_emit_stloc (mb, 3);
4855 /* load pointer to returned value type */
4856 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4857 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4858 /* store the address of the source into local variable 0 */
4859 mono_mb_emit_stloc (mb, 0);
4861 mono_mb_emit_ldloc_addr (mb, 3);
4862 mono_mb_emit_stloc (mb, 1);
4864 /* emit valuetype conversion code */
4865 emit_struct_conv (mb, klass, TRUE);
4868 case MARSHAL_ACTION_MANAGED_CONV_IN:
4869 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4870 klass->blittable || klass->enumtype) {
4875 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4877 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4881 mono_mb_emit_ldarg (mb, argnum);
4883 mono_mb_emit_ldarg_addr (mb, argnum);
4884 mono_mb_emit_stloc (mb, 0);
4887 mono_mb_emit_ldloc (mb, 0);
4888 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4891 mono_mb_emit_ldloc_addr (mb, conv_arg);
4892 mono_mb_emit_stloc (mb, 1);
4894 /* emit valuetype conversion code */
4895 emit_struct_conv (mb, klass, TRUE);
4898 mono_mb_patch_branch (mb, pos);
4901 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4902 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4903 klass->blittable || klass->enumtype) {
4907 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4910 /* Check for null */
4911 mono_mb_emit_ldarg (mb, argnum);
4912 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4915 mono_mb_emit_ldloc_addr (mb, conv_arg);
4916 mono_mb_emit_stloc (mb, 0);
4919 mono_mb_emit_ldarg (mb, argnum);
4920 mono_mb_emit_stloc (mb, 1);
4922 /* emit valuetype conversion code */
4923 emit_struct_conv (mb, klass, FALSE);
4925 mono_mb_patch_branch (mb, pos2);
4928 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4929 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4930 klass->blittable || klass->enumtype) {
4931 mono_mb_emit_stloc (mb, 3);
4936 /* load pointer to returned value type */
4937 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4938 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4940 /* store the address of the source into local variable 0 */
4941 mono_mb_emit_stloc (mb, 0);
4942 /* allocate space for the native struct and
4943 * store the address into dst_ptr */
4944 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4945 m->retobj_class = klass;
4946 g_assert (m->retobj_var);
4947 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4948 mono_mb_emit_byte (mb, CEE_CONV_I);
4949 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4950 mono_mb_emit_stloc (mb, 1);
4951 mono_mb_emit_ldloc (mb, 1);
4952 mono_mb_emit_stloc (mb, m->retobj_var);
4954 /* emit valuetype conversion code */
4955 emit_struct_conv (mb, klass, FALSE);
4959 g_assert_not_reached ();
4966 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4967 MonoMarshalSpec *spec,
4968 int conv_arg, MonoType **conv_arg_type,
4969 MarshalAction action)
4973 case MARSHAL_ACTION_CONV_IN:
4974 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4976 case MARSHAL_ACTION_MANAGED_CONV_IN:
4977 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4981 MonoMethodBuilder *mb = m->mb;
4982 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4983 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4987 case MARSHAL_ACTION_CONV_IN:
4988 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4989 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4992 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4995 mono_mb_emit_ldarg (mb, argnum);
4996 mono_mb_emit_byte (mb, CEE_LDIND_I);
4998 mono_mb_emit_ldarg (mb, argnum);
5002 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5003 mono_mb_emit_exception_marshal_directive (mb, msg);
5005 mono_mb_emit_icall (mb, conv_to_icall (conv));
5007 mono_mb_emit_stloc (mb, conv_arg);
5011 case MARSHAL_ACTION_CONV_OUT:
5012 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5014 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5015 mono_mb_emit_exception_marshal_directive (mb, msg);
5019 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5020 static MonoMethod *m;
5023 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5028 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5029 mono_mb_emit_exception_marshal_directive (mb, msg);
5034 * Have to allocate a new string with the same length as the original, and
5035 * copy the contents of the buffer pointed to by CONV_ARG into it.
5037 g_assert (t->byref);
5038 mono_mb_emit_ldarg (mb, argnum);
5039 mono_mb_emit_ldloc (mb, conv_arg);
5040 mono_mb_emit_ldarg (mb, argnum);
5041 mono_mb_emit_byte (mb, CEE_LDIND_I);
5042 mono_mb_emit_managed_call (mb, m, NULL);
5043 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5044 mono_mb_emit_byte (mb, CEE_STIND_REF);
5045 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5046 mono_mb_emit_ldarg (mb, argnum);
5047 mono_mb_emit_ldloc (mb, conv_arg);
5048 mono_mb_emit_icall (mb, conv_to_icall (conv));
5049 mono_mb_emit_byte (mb, CEE_STIND_REF);
5054 mono_mb_emit_ldloc (mb, conv_arg);
5055 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5056 mono_mb_emit_icall (mb, mono_free_bstr);
5058 mono_mb_emit_icall (mb, mono_marshal_free);
5062 case MARSHAL_ACTION_PUSH:
5063 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5064 mono_mb_emit_ldloc_addr (mb, conv_arg);
5066 mono_mb_emit_ldloc (mb, conv_arg);
5069 case MARSHAL_ACTION_CONV_RESULT:
5070 mono_mb_emit_stloc (mb, 0);
5072 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5074 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5075 mono_mb_emit_exception_marshal_directive (mb, msg);
5079 mono_mb_emit_ldloc (mb, 0);
5080 mono_mb_emit_icall (mb, conv_to_icall (conv));
5081 mono_mb_emit_stloc (mb, 3);
5083 /* free the string */
5084 mono_mb_emit_ldloc (mb, 0);
5085 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5086 mono_mb_emit_icall (mb, mono_free_bstr);
5088 mono_mb_emit_icall (mb, mono_marshal_free);
5091 case MARSHAL_ACTION_MANAGED_CONV_IN:
5092 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5094 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5097 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5101 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5103 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5104 mono_mb_emit_exception_marshal_directive (mb, msg);
5108 mono_mb_emit_ldarg (mb, argnum);
5110 mono_mb_emit_byte (mb, CEE_LDIND_I);
5111 mono_mb_emit_icall (mb, conv_to_icall (conv));
5112 mono_mb_emit_stloc (mb, conv_arg);
5115 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5118 mono_mb_emit_ldarg (mb, argnum);
5119 mono_mb_emit_ldloc (mb, conv_arg);
5120 mono_mb_emit_icall (mb, conv_to_icall (conv));
5121 mono_mb_emit_byte (mb, CEE_STIND_I);
5126 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5127 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5128 /* We need to make a copy so the caller is able to free it */
5129 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5131 mono_mb_emit_icall (mb, conv_to_icall (conv));
5132 mono_mb_emit_stloc (mb, 3);
5136 g_assert_not_reached ();
5144 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5145 MonoMarshalSpec *spec, int conv_arg,
5146 MonoType **conv_arg_type, MarshalAction action)
5149 if (action == MARSHAL_ACTION_CONV_IN)
5150 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5152 MonoMethodBuilder *mb = m->mb;
5155 case MARSHAL_ACTION_CONV_IN: {
5156 MonoType *intptr_type;
5157 int dar_release_slot, pos;
5159 intptr_type = &mono_defaults.int_class->byval_arg;
5160 conv_arg = mono_mb_add_local (mb, intptr_type);
5161 *conv_arg_type = intptr_type;
5163 if (!sh_dangerous_add_ref)
5164 init_safe_handle ();
5166 mono_mb_emit_ldarg (mb, argnum);
5167 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5168 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5170 mono_mb_patch_branch (mb, pos);
5173 * My tests in show that ref SafeHandles are not really
5174 * passed as ref objects. Instead a NULL is passed as the
5177 mono_mb_emit_icon (mb, 0);
5178 mono_mb_emit_stloc (mb, conv_arg);
5182 /* Create local to hold the ref parameter to DangerousAddRef */
5183 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5185 /* set release = false; */
5186 mono_mb_emit_icon (mb, 0);
5187 mono_mb_emit_stloc (mb, dar_release_slot);
5189 /* safehandle.DangerousAddRef (ref release) */
5190 mono_mb_emit_ldarg (mb, argnum);
5191 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5192 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5194 /* Pull the handle field from SafeHandle */
5195 mono_mb_emit_ldarg (mb, argnum);
5196 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5197 mono_mb_emit_byte (mb, CEE_LDIND_I);
5198 mono_mb_emit_stloc (mb, conv_arg);
5203 case MARSHAL_ACTION_PUSH:
5205 mono_mb_emit_ldloc_addr (mb, conv_arg);
5207 mono_mb_emit_ldloc (mb, conv_arg);
5210 case MARSHAL_ACTION_CONV_OUT: {
5211 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5212 int dar_release_slot = conv_arg + 1;
5215 if (!sh_dangerous_release)
5216 init_safe_handle ();
5222 * My tests indicate that ref SafeHandles parameters are not actually
5223 * passed by ref, but instead a new Handle is created regardless of
5224 * whether a change happens in the unmanaged side.
5226 * Also, the Handle is created before calling into unmanaged code,
5227 * but we do not support that mechanism (getting to the original
5228 * handle) and it makes no difference where we create this
5230 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5232 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5235 /* refval = new SafeHandleDerived ()*/
5236 mono_mb_emit_ldarg (mb, argnum);
5237 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5238 mono_mb_emit_byte (mb, CEE_STIND_REF);
5240 /* refval.handle = returned_handle */
5241 mono_mb_emit_ldarg (mb, argnum);
5242 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5243 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5244 mono_mb_emit_ldloc (mb, conv_arg);
5245 mono_mb_emit_byte (mb, CEE_STIND_I);
5247 mono_mb_emit_ldloc (mb, dar_release_slot);
5248 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5249 mono_mb_emit_ldarg (mb, argnum);
5250 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5251 mono_mb_patch_branch (mb, label_next);
5256 case MARSHAL_ACTION_CONV_RESULT: {
5257 MonoMethod *ctor = NULL;
5258 int intptr_handle_slot;
5260 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5261 mono_mb_emit_byte (mb, CEE_POP);
5262 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5266 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5268 mono_mb_emit_byte (mb, CEE_POP);
5269 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5272 /* Store the IntPtr results into a local */
5273 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5274 mono_mb_emit_stloc (mb, intptr_handle_slot);
5276 /* Create return value */
5277 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5278 mono_mb_emit_stloc (mb, 3);
5280 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5281 mono_mb_emit_ldloc (mb, 3);
5282 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5283 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5284 mono_mb_emit_byte (mb, CEE_STIND_I);
5288 case MARSHAL_ACTION_MANAGED_CONV_IN:
5289 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5292 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5293 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5296 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5297 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5300 printf ("Unhandled case for MarshalAction: %d\n", action);
5308 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5309 MonoMarshalSpec *spec, int conv_arg,
5310 MonoType **conv_arg_type, MarshalAction action)
5313 if (action == MARSHAL_ACTION_CONV_IN)
5314 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5316 MonoMethodBuilder *mb = m->mb;
5319 case MARSHAL_ACTION_CONV_IN: {
5320 MonoType *intptr_type;
5322 intptr_type = &mono_defaults.int_class->byval_arg;
5323 conv_arg = mono_mb_add_local (mb, intptr_type);
5324 *conv_arg_type = intptr_type;
5327 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5328 mono_mb_emit_exception_marshal_directive (mb, msg);
5331 mono_mb_emit_ldarg_addr (mb, argnum);
5332 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5333 mono_mb_emit_byte (mb, CEE_ADD);
5334 mono_mb_emit_byte (mb, CEE_LDIND_I);
5335 mono_mb_emit_stloc (mb, conv_arg);
5339 case MARSHAL_ACTION_PUSH:
5340 mono_mb_emit_ldloc (mb, conv_arg);
5343 case MARSHAL_ACTION_CONV_OUT: {
5344 /* no resource release required */
5348 case MARSHAL_ACTION_CONV_RESULT: {
5349 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5350 mono_mb_emit_exception_marshal_directive (mb, msg);
5354 case MARSHAL_ACTION_MANAGED_CONV_IN:
5355 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5358 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5359 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5362 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5363 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5366 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5374 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5375 MonoMarshalSpec *spec,
5376 int conv_arg, MonoType **conv_arg_type,
5377 MarshalAction action)
5380 if (action == MARSHAL_ACTION_CONV_IN)
5381 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5383 MonoMethodBuilder *mb = m->mb;
5384 MonoClass *klass = mono_class_from_mono_type (t);
5388 case MARSHAL_ACTION_CONV_IN:
5389 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5390 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5392 m->orig_conv_args [argnum] = 0;
5394 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5395 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5396 mono_mb_emit_exception_marshal_directive (mb, msg);
5400 if (klass->delegate) {
5402 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5403 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5404 mono_mb_emit_exception_marshal_directive (mb, msg);
5406 mono_mb_emit_byte (mb, CEE_LDNULL);
5407 mono_mb_emit_stloc (mb, conv_arg);
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5411 mono_mb_emit_stloc (mb, conv_arg);
5413 } else if (klass == mono_defaults.stringbuilder_class) {
5414 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5415 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5419 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5420 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5421 mono_mb_emit_exception_marshal_directive (mb, msg);
5427 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5431 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5432 mono_mb_emit_exception_marshal_directive (mb, msg);
5436 mono_mb_emit_ldarg (mb, argnum);
5438 mono_mb_emit_byte (mb, CEE_LDIND_I);
5440 mono_mb_emit_icall (mb, conv_to_icall (conv));
5441 mono_mb_emit_stloc (mb, conv_arg);
5442 } else if (klass->blittable) {
5443 mono_mb_emit_byte (mb, CEE_LDNULL);
5444 mono_mb_emit_stloc (mb, conv_arg);
5446 mono_mb_emit_ldarg (mb, argnum);
5447 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5449 mono_mb_emit_ldarg (mb, argnum);
5450 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5451 mono_mb_emit_stloc (mb, conv_arg);
5453 mono_mb_patch_branch (mb, pos);
5456 mono_mb_emit_byte (mb, CEE_LDNULL);
5457 mono_mb_emit_stloc (mb, conv_arg);
5460 /* we dont need any conversions for out parameters */
5461 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5464 mono_mb_emit_ldarg (mb, argnum);
5465 mono_mb_emit_byte (mb, CEE_LDIND_I);
5468 mono_mb_emit_ldarg (mb, argnum);
5469 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5470 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5473 /* store the address of the source into local variable 0 */
5474 mono_mb_emit_stloc (mb, 0);
5475 mono_mb_emit_ldloc (mb, 0);
5476 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5478 /* allocate space for the native struct and store the address */
5479 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5480 mono_mb_emit_byte (mb, CEE_PREFIX1);
5481 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5482 mono_mb_emit_stloc (mb, conv_arg);
5485 /* Need to store the original buffer so we can free it later */
5486 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5487 mono_mb_emit_ldloc (mb, conv_arg);
5488 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5491 /* set the src_ptr */
5492 mono_mb_emit_ldloc (mb, 0);
5493 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5494 mono_mb_emit_stloc (mb, 0);
5497 mono_mb_emit_ldloc (mb, conv_arg);
5498 mono_mb_emit_stloc (mb, 1);
5500 /* emit valuetype conversion code */
5501 emit_struct_conv (mb, klass, FALSE);
5503 mono_mb_patch_branch (mb, pos);
5507 case MARSHAL_ACTION_CONV_OUT:
5508 if (klass == mono_defaults.stringbuilder_class) {
5510 MonoMarshalNative encoding;
5511 MonoMarshalConv conv;
5513 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5514 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5516 g_assert (encoding != -1);
5519 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5523 mono_mb_emit_ldarg (mb, argnum);
5524 mono_mb_emit_ldloc (mb, conv_arg);
5527 case MONO_NATIVE_LPWSTR:
5528 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5530 case MONO_NATIVE_LPSTR:
5531 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5534 g_assert_not_reached ();
5537 mono_mb_emit_byte (mb, CEE_STIND_REF);
5539 mono_mb_emit_ldarg (mb, argnum);
5540 mono_mb_emit_ldloc (mb, conv_arg);
5542 mono_mb_emit_icall (mb, conv_to_icall (conv));
5546 mono_mb_emit_ldloc (mb, conv_arg);
5547 mono_mb_emit_icall (mb, mono_marshal_free);
5552 if (klass->delegate) {
5554 mono_mb_emit_ldarg (mb, argnum);
5555 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5556 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5557 mono_mb_emit_ldloc (mb, conv_arg);
5558 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5559 mono_mb_emit_byte (mb, CEE_STIND_REF);
5564 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5565 /* allocate a new object */
5566 mono_mb_emit_ldarg (mb, argnum);
5567 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5568 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5569 mono_mb_emit_byte (mb, CEE_STIND_REF);
5572 /* dst = *argument */
5573 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_byte (mb, CEE_LDIND_I);
5578 mono_mb_emit_stloc (mb, 1);
5580 mono_mb_emit_ldloc (mb, 1);
5581 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5583 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5584 mono_mb_emit_ldloc (mb, 1);
5585 mono_mb_emit_icon (mb, sizeof (MonoObject));
5586 mono_mb_emit_byte (mb, CEE_ADD);
5587 mono_mb_emit_stloc (mb, 1);
5589 /* src = tmp_locals [i] */
5590 mono_mb_emit_ldloc (mb, conv_arg);
5591 mono_mb_emit_stloc (mb, 0);
5593 /* emit valuetype conversion code */
5594 emit_struct_conv (mb, klass, TRUE);
5596 /* Free the structure returned by the native code */
5597 emit_struct_free (mb, klass, conv_arg);
5599 if (m->orig_conv_args [argnum]) {
5601 * If the native function changed the pointer, then free
5602 * the original structure plus the new pointer.
5604 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5605 mono_mb_emit_ldloc (mb, conv_arg);
5606 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5608 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5609 g_assert (m->orig_conv_args [argnum]);
5611 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5614 mono_mb_emit_ldloc (mb, conv_arg);
5615 mono_mb_emit_icall (mb, mono_marshal_free);
5617 mono_mb_patch_branch (mb, pos2);
5621 /* Free the original structure passed to native code */
5622 emit_struct_free (mb, klass, conv_arg);
5624 mono_mb_patch_branch (mb, pos);
5627 case MARSHAL_ACTION_PUSH:
5629 mono_mb_emit_ldloc_addr (mb, conv_arg);
5631 mono_mb_emit_ldloc (mb, conv_arg);
5634 case MARSHAL_ACTION_CONV_RESULT:
5635 if (klass->delegate) {
5636 g_assert (!t->byref);
5637 mono_mb_emit_stloc (mb, 0);
5638 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5639 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5640 mono_mb_emit_ldloc (mb, 0);
5641 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5642 mono_mb_emit_stloc (mb, 3);
5645 mono_mb_emit_stloc (mb, 0);
5647 /* Make a copy since emit_conv modifies local 0 */
5648 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5649 mono_mb_emit_ldloc (mb, 0);
5650 mono_mb_emit_stloc (mb, loc);
5652 mono_mb_emit_byte (mb, CEE_LDNULL);
5653 mono_mb_emit_stloc (mb, 3);
5655 mono_mb_emit_ldloc (mb, 0);
5656 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5658 /* allocate result object */
5660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5661 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5662 mono_mb_emit_stloc (mb, 3);
5666 mono_mb_emit_ldloc (mb, 3);
5667 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5668 mono_mb_emit_stloc (mb, 1);
5670 /* emit conversion code */
5671 emit_struct_conv (mb, klass, TRUE);
5673 emit_struct_free (mb, klass, loc);
5675 /* Free the pointer allocated by unmanaged code */
5676 mono_mb_emit_ldloc (mb, loc);
5677 mono_mb_emit_icall (mb, mono_marshal_free);
5678 mono_mb_patch_branch (mb, pos);
5682 case MARSHAL_ACTION_MANAGED_CONV_IN:
5683 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5685 if (klass->delegate) {
5686 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5687 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5688 mono_mb_emit_ldarg (mb, argnum);
5690 mono_mb_emit_byte (mb, CEE_LDIND_I);
5691 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5692 mono_mb_emit_stloc (mb, conv_arg);
5696 if (klass == mono_defaults.stringbuilder_class) {
5697 MonoMarshalNative encoding;
5699 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5702 g_assert (encoding == MONO_NATIVE_LPSTR);
5704 g_assert (!t->byref);
5705 g_assert (encoding != -1);
5707 mono_mb_emit_ldarg (mb, argnum);
5708 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5709 mono_mb_emit_stloc (mb, conv_arg);
5713 /* The class can not have an automatic layout */
5714 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5715 mono_mb_emit_auto_layout_exception (mb, klass);
5719 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5720 mono_mb_emit_byte (mb, CEE_LDNULL);
5721 mono_mb_emit_stloc (mb, conv_arg);
5726 mono_mb_emit_ldarg (mb, argnum);
5730 /* Check for NULL and raise an exception */
5731 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5733 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5735 mono_mb_patch_branch (mb, pos2);
5736 mono_mb_emit_ldarg (mb, argnum);
5737 mono_mb_emit_byte (mb, CEE_LDIND_I);
5740 mono_mb_emit_stloc (mb, 0);
5742 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5743 mono_mb_emit_stloc (mb, conv_arg);
5745 mono_mb_emit_ldloc (mb, 0);
5746 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5748 /* Create and set dst */
5749 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5750 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5751 mono_mb_emit_stloc (mb, conv_arg);
5752 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5754 mono_mb_emit_stloc (mb, 1);
5756 /* emit valuetype conversion code */
5757 emit_struct_conv (mb, klass, TRUE);
5759 mono_mb_patch_branch (mb, pos);
5762 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5763 if (klass->delegate) {
5765 mono_mb_emit_ldarg (mb, argnum);
5766 mono_mb_emit_ldloc (mb, conv_arg);
5767 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5768 mono_mb_emit_byte (mb, CEE_STIND_I);
5774 /* Check for null */
5775 mono_mb_emit_ldloc (mb, conv_arg);
5776 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5777 mono_mb_emit_ldarg (mb, argnum);
5778 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5779 mono_mb_emit_byte (mb, CEE_STIND_REF);
5780 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5782 mono_mb_patch_branch (mb, pos);
5785 mono_mb_emit_ldloc (mb, conv_arg);
5786 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5787 mono_mb_emit_stloc (mb, 0);
5789 /* Allocate and set dest */
5790 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5791 mono_mb_emit_byte (mb, CEE_CONV_I);
5792 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5793 mono_mb_emit_stloc (mb, 1);
5795 /* Update argument pointer */
5796 mono_mb_emit_ldarg (mb, argnum);
5797 mono_mb_emit_ldloc (mb, 1);
5798 mono_mb_emit_byte (mb, CEE_STIND_I);
5800 /* emit valuetype conversion code */
5801 emit_struct_conv (mb, klass, FALSE);
5803 mono_mb_patch_branch (mb, pos2);
5804 } else if (klass == mono_defaults.stringbuilder_class) {
5805 // FIXME: What to do here ?
5807 /* byval [Out] marshalling */
5809 /* FIXME: Handle null */
5812 mono_mb_emit_ldloc (mb, conv_arg);
5813 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5814 mono_mb_emit_stloc (mb, 0);
5817 mono_mb_emit_ldarg (mb, argnum);
5818 mono_mb_emit_stloc (mb, 1);
5820 /* emit valuetype conversion code */
5821 emit_struct_conv (mb, klass, FALSE);
5825 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5826 if (klass->delegate) {
5827 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5828 mono_mb_emit_stloc (mb, 3);
5832 /* The class can not have an automatic layout */
5833 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5834 mono_mb_emit_auto_layout_exception (mb, klass);
5838 mono_mb_emit_stloc (mb, 0);
5839 /* Check for null */
5840 mono_mb_emit_ldloc (mb, 0);
5841 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5842 mono_mb_emit_byte (mb, CEE_LDNULL);
5843 mono_mb_emit_stloc (mb, 3);
5844 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5846 mono_mb_patch_branch (mb, pos);
5849 mono_mb_emit_ldloc (mb, 0);
5850 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5851 mono_mb_emit_stloc (mb, 0);
5853 /* Allocate and set dest */
5854 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5855 mono_mb_emit_byte (mb, CEE_CONV_I);
5856 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5857 mono_mb_emit_byte (mb, CEE_DUP);
5858 mono_mb_emit_stloc (mb, 1);
5859 mono_mb_emit_stloc (mb, 3);
5861 emit_struct_conv (mb, klass, FALSE);
5863 mono_mb_patch_branch (mb, pos2);
5867 g_assert_not_reached ();
5878 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5879 MonoMarshalSpec *spec,
5880 int conv_arg, MonoType **conv_arg_type,
5881 MarshalAction action)
5883 MonoMethodBuilder *mb = m->mb;
5884 static MonoMethod *get_object_for_native_variant = NULL;
5885 static MonoMethod *get_native_variant_for_object = NULL;
5887 if (!get_object_for_native_variant)
5888 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5889 g_assert (get_object_for_native_variant);
5891 if (!get_native_variant_for_object)
5892 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5893 g_assert (get_native_variant_for_object);
5896 case MARSHAL_ACTION_CONV_IN: {
5897 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5900 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5902 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5904 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5907 mono_mb_emit_ldarg (mb, argnum);
5909 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5910 mono_mb_emit_ldloc_addr (mb, conv_arg);
5911 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5915 case MARSHAL_ACTION_CONV_OUT: {
5916 static MonoMethod *variant_clear = NULL;
5919 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5920 g_assert (variant_clear);
5923 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_ldloc_addr (mb, conv_arg);
5926 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5927 mono_mb_emit_byte (mb, CEE_STIND_REF);
5930 mono_mb_emit_ldloc_addr (mb, conv_arg);
5931 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5935 case MARSHAL_ACTION_PUSH:
5937 mono_mb_emit_ldloc_addr (mb, conv_arg);
5939 mono_mb_emit_ldloc (mb, conv_arg);
5942 case MARSHAL_ACTION_CONV_RESULT: {
5943 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5944 mono_mb_emit_exception_marshal_directive (mb, msg);
5948 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5949 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5952 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5954 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5956 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5960 mono_mb_emit_ldarg (mb, argnum);
5962 mono_mb_emit_ldarg_addr (mb, argnum);
5963 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5964 mono_mb_emit_stloc (mb, conv_arg);
5968 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5969 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5970 mono_mb_emit_ldloc (mb, conv_arg);
5971 mono_mb_emit_ldarg (mb, argnum);
5972 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5977 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5978 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5979 mono_mb_emit_exception_marshal_directive (mb, msg);
5984 g_assert_not_reached ();
5990 #endif /* DISABLE_COM */
5991 #endif /* DISABLE_JIT */
5994 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5996 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5997 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5999 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6001 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6013 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6014 MonoMarshalSpec *spec,
6015 int conv_arg, MonoType **conv_arg_type,
6016 MarshalAction action)
6020 case MARSHAL_ACTION_CONV_IN:
6021 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6023 case MARSHAL_ACTION_MANAGED_CONV_IN:
6024 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6028 MonoMethodBuilder *mb = m->mb;
6029 MonoClass *klass = mono_class_from_mono_type (t);
6030 gboolean need_convert, need_free;
6031 MonoMarshalNative encoding;
6033 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6036 case MARSHAL_ACTION_CONV_IN:
6037 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6038 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6040 if (klass->element_class->blittable) {
6041 mono_mb_emit_ldarg (mb, argnum);
6043 mono_mb_emit_byte (mb, CEE_LDIND_I);
6044 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6045 mono_mb_emit_stloc (mb, conv_arg);
6048 guint32 label1, label2, label3;
6049 int index_var, src_var, dest_ptr, esize;
6050 MonoMarshalConv conv;
6051 gboolean is_string = FALSE;
6053 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6055 eklass = klass->element_class;
6057 if (eklass == mono_defaults.string_class) {
6059 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6061 else if (eklass == mono_defaults.stringbuilder_class) {
6063 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6066 conv = (MonoMarshalConv)-1;
6068 if (is_string && conv == -1) {
6069 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6070 mono_mb_emit_exception_marshal_directive (mb, msg);
6074 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6075 mono_mb_emit_ldarg (mb, argnum);
6077 mono_mb_emit_byte (mb, CEE_LDIND_I);
6078 mono_mb_emit_stloc (mb, src_var);
6081 mono_mb_emit_ldloc (mb, src_var);
6082 mono_mb_emit_stloc (mb, conv_arg);
6083 mono_mb_emit_ldloc (mb, src_var);
6084 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6087 esize = sizeof (gpointer);
6088 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6089 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6091 esize = mono_class_native_size (eklass, NULL);
6093 /* allocate space for the native struct and store the address */
6094 mono_mb_emit_icon (mb, esize);
6095 mono_mb_emit_ldloc (mb, src_var);
6096 mono_mb_emit_byte (mb, CEE_LDLEN);
6098 if (eklass == mono_defaults.string_class) {
6099 /* Make the array bigger for the terminating null */
6100 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6101 mono_mb_emit_byte (mb, CEE_ADD);
6103 mono_mb_emit_byte (mb, CEE_MUL);
6104 mono_mb_emit_byte (mb, CEE_PREFIX1);
6105 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6106 mono_mb_emit_stloc (mb, conv_arg);
6108 mono_mb_emit_ldloc (mb, conv_arg);
6109 mono_mb_emit_stloc (mb, dest_ptr);
6111 /* Emit marshalling loop */
6112 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6113 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6114 mono_mb_emit_stloc (mb, index_var);
6115 label2 = mono_mb_get_label (mb);
6116 mono_mb_emit_ldloc (mb, index_var);
6117 mono_mb_emit_ldloc (mb, src_var);
6118 mono_mb_emit_byte (mb, CEE_LDLEN);
6119 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6121 /* Emit marshalling code */
6124 mono_mb_emit_ldloc (mb, dest_ptr);
6125 mono_mb_emit_ldloc (mb, src_var);
6126 mono_mb_emit_ldloc (mb, index_var);
6127 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6128 mono_mb_emit_icall (mb, conv_to_icall (conv));
6129 mono_mb_emit_byte (mb, CEE_STIND_I);
6131 /* set the src_ptr */
6132 mono_mb_emit_ldloc (mb, src_var);
6133 mono_mb_emit_ldloc (mb, index_var);
6134 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6135 mono_mb_emit_stloc (mb, 0);
6138 mono_mb_emit_ldloc (mb, dest_ptr);
6139 mono_mb_emit_stloc (mb, 1);
6141 /* emit valuetype conversion code */
6142 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6145 mono_mb_emit_add_to_local (mb, index_var, 1);
6146 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6148 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6150 mono_mb_patch_branch (mb, label3);
6152 if (eklass == mono_defaults.string_class) {
6153 /* Null terminate */
6154 mono_mb_emit_ldloc (mb, dest_ptr);
6155 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6156 mono_mb_emit_byte (mb, CEE_STIND_REF);
6159 mono_mb_patch_branch (mb, label1);
6164 case MARSHAL_ACTION_CONV_OUT:
6165 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6166 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);
6167 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6170 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6171 int param_num = spec->data.array_data.param_num;
6172 MonoType *param_type;
6174 param_type = m->sig->params [param_num];
6176 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6177 char *msg = g_strdup ("Not implemented.");
6178 mono_mb_emit_exception_marshal_directive (mb, msg);
6183 mono_mb_emit_ldarg (mb, argnum);
6185 /* Create the managed array */
6186 mono_mb_emit_ldarg (mb, param_num);
6187 if (m->sig->params [param_num]->byref)
6188 // FIXME: Support other types
6189 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6190 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6191 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6192 /* Store into argument */
6193 mono_mb_emit_byte (mb, CEE_STIND_I);
6197 if (need_convert || need_free) {
6198 /* FIXME: Optimize blittable case */
6200 guint32 label1, label2, label3;
6201 int index_var, src_ptr, loc, esize;
6203 eklass = klass->element_class;
6204 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6205 esize = sizeof (gpointer);
6206 else if (eklass == mono_defaults.char_class)
6207 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6209 esize = mono_class_native_size (eklass, NULL);
6210 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6211 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6214 mono_mb_emit_ldarg (mb, argnum);
6216 mono_mb_emit_byte (mb, CEE_LDIND_I);
6217 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6219 mono_mb_emit_ldloc (mb, conv_arg);
6220 mono_mb_emit_stloc (mb, src_ptr);
6222 /* Emit marshalling loop */
6223 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6224 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6225 mono_mb_emit_stloc (mb, index_var);
6226 label2 = mono_mb_get_label (mb);
6227 mono_mb_emit_ldloc (mb, index_var);
6228 mono_mb_emit_ldarg (mb, argnum);
6230 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6231 mono_mb_emit_byte (mb, CEE_LDLEN);
6232 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6234 /* Emit marshalling code */
6236 if (eklass == mono_defaults.stringbuilder_class) {
6237 gboolean need_free2;
6238 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6240 g_assert (conv != -1);
6243 mono_mb_emit_ldarg (mb, argnum);
6245 mono_mb_emit_byte (mb, CEE_LDIND_I);
6246 mono_mb_emit_ldloc (mb, index_var);
6247 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6250 mono_mb_emit_ldloc (mb, src_ptr);
6251 mono_mb_emit_byte (mb, CEE_LDIND_I);
6253 mono_mb_emit_icall (mb, conv_to_icall (conv));
6257 mono_mb_emit_ldloc (mb, src_ptr);
6258 mono_mb_emit_byte (mb, CEE_LDIND_I);
6260 mono_mb_emit_icall (mb, mono_marshal_free);
6263 else if (eklass == mono_defaults.string_class) {
6266 mono_mb_emit_ldloc (mb, src_ptr);
6267 mono_mb_emit_byte (mb, CEE_LDIND_I);
6269 mono_mb_emit_icall (mb, mono_marshal_free);
6274 /* set the src_ptr */
6275 mono_mb_emit_ldloc (mb, src_ptr);
6276 mono_mb_emit_stloc (mb, 0);
6279 mono_mb_emit_ldarg (mb, argnum);
6281 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6282 mono_mb_emit_ldloc (mb, index_var);
6283 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6284 mono_mb_emit_stloc (mb, 1);
6286 /* emit valuetype conversion code */
6287 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6291 mono_mb_emit_ldloc (mb, src_ptr);
6292 mono_mb_emit_stloc (mb, loc);
6293 mono_mb_emit_ldloc (mb, loc);
6295 emit_struct_free (mb, eklass, loc);
6299 mono_mb_emit_add_to_local (mb, index_var, 1);
6300 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6302 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6304 mono_mb_patch_branch (mb, label1);
6305 mono_mb_patch_branch (mb, label3);
6308 if (klass->element_class->blittable) {
6309 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6311 mono_mb_emit_ldarg (mb, argnum);
6313 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6314 mono_mb_emit_ldloc (mb, conv_arg);
6315 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6320 case MARSHAL_ACTION_PUSH:
6322 mono_mb_emit_ldloc_addr (mb, conv_arg);
6324 mono_mb_emit_ldloc (mb, conv_arg);
6327 case MARSHAL_ACTION_CONV_RESULT:
6328 /* fixme: we need conversions here */
6329 mono_mb_emit_stloc (mb, 3);
6332 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6334 guint32 label1, label2, label3;
6335 int index_var, src_ptr, esize, param_num, num_elem;
6336 MonoMarshalConv conv;
6337 gboolean is_string = FALSE;
6339 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6340 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6343 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6344 mono_mb_emit_exception_marshal_directive (mb, msg);
6348 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6349 mono_mb_emit_exception_marshal_directive (mb, msg);
6352 if (spec->native != MONO_NATIVE_LPARRAY) {
6353 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6354 mono_mb_emit_exception_marshal_directive (mb, msg);
6358 /* FIXME: t is from the method which is wrapped, not the delegate type */
6359 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6361 param_num = spec->data.array_data.param_num;
6362 num_elem = spec->data.array_data.num_elem;
6363 if (spec->data.array_data.elem_mult == 0)
6364 /* param_num is not specified */
6367 if (param_num == -1) {
6368 if (num_elem <= 0) {
6369 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6370 mono_mb_emit_exception_marshal_directive (mb, msg);
6375 /* FIXME: Optimize blittable case */
6377 eklass = klass->element_class;
6378 if (eklass == mono_defaults.string_class) {
6380 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6382 else if (eklass == mono_defaults.stringbuilder_class) {
6384 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6387 conv = (MonoMarshalConv)-1;
6389 mono_marshal_load_type_info (eklass);
6392 esize = sizeof (gpointer);
6394 esize = mono_class_native_size (eklass, NULL);
6395 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6397 mono_mb_emit_byte (mb, CEE_LDNULL);
6398 mono_mb_emit_stloc (mb, conv_arg);
6400 /* Check param index */
6401 if (param_num != -1) {
6402 if (param_num >= m->sig->param_count) {
6403 char *msg = g_strdup ("Array size control parameter index is out of range.");
6404 mono_mb_emit_exception_marshal_directive (mb, msg);
6407 switch (m->sig->params [param_num]->type) {
6420 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6421 mono_mb_emit_exception_marshal_directive (mb, msg);
6428 mono_mb_emit_ldarg (mb, argnum);
6429 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6431 mono_mb_emit_ldarg (mb, argnum);
6432 mono_mb_emit_stloc (mb, src_ptr);
6434 /* Create managed array */
6436 * The LPArray marshalling spec says that sometimes param_num starts
6437 * from 1, sometimes it starts from 0. But MS seems to allways start
6441 if (param_num == -1) {
6442 mono_mb_emit_icon (mb, num_elem);
6444 mono_mb_emit_ldarg (mb, param_num);
6446 mono_mb_emit_icon (mb, num_elem);
6447 mono_mb_emit_byte (mb, CEE_ADD);
6449 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6452 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6453 mono_mb_emit_stloc (mb, conv_arg);
6455 if (eklass->blittable) {
6456 mono_mb_emit_ldloc (mb, conv_arg);
6457 mono_mb_emit_byte (mb, CEE_CONV_I);
6458 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6459 mono_mb_emit_byte (mb, CEE_ADD);
6460 mono_mb_emit_ldarg (mb, argnum);
6461 mono_mb_emit_ldloc (mb, conv_arg);
6462 mono_mb_emit_byte (mb, CEE_LDLEN);
6463 mono_mb_emit_icon (mb, esize);
6464 mono_mb_emit_byte (mb, CEE_MUL);
6465 mono_mb_emit_byte (mb, CEE_PREFIX1);
6466 mono_mb_emit_byte (mb, CEE_CPBLK);
6470 /* Emit marshalling loop */
6471 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6472 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6473 mono_mb_emit_stloc (mb, index_var);
6474 label2 = mono_mb_get_label (mb);
6475 mono_mb_emit_ldloc (mb, index_var);
6476 mono_mb_emit_ldloc (mb, conv_arg);
6477 mono_mb_emit_byte (mb, CEE_LDLEN);
6478 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6480 /* Emit marshalling code */
6482 g_assert (conv != -1);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6485 mono_mb_emit_ldloc (mb, index_var);
6487 mono_mb_emit_ldloc (mb, src_ptr);
6488 mono_mb_emit_byte (mb, CEE_LDIND_I);
6490 mono_mb_emit_icall (mb, conv_to_icall (conv));
6491 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6494 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6495 mono_mb_emit_exception_marshal_directive (mb, msg);
6499 mono_mb_emit_add_to_local (mb, index_var, 1);
6500 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6502 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6504 mono_mb_patch_branch (mb, label1);
6505 mono_mb_patch_branch (mb, label3);
6509 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6511 guint32 label1, label2, label3;
6512 int index_var, dest_ptr, esize, param_num, num_elem;
6513 MonoMarshalConv conv;
6514 gboolean is_string = FALSE;
6517 /* Already handled in CONV_IN */
6520 /* These are already checked in CONV_IN */
6521 g_assert (!t->byref);
6522 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6523 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6525 param_num = spec->data.array_data.param_num;
6526 num_elem = spec->data.array_data.num_elem;
6528 if (spec->data.array_data.elem_mult == 0)
6529 /* param_num is not specified */
6532 if (param_num == -1) {
6533 if (num_elem <= 0) {
6534 g_assert_not_reached ();
6538 /* FIXME: Optimize blittable case */
6540 eklass = klass->element_class;
6541 if (eklass == mono_defaults.string_class) {
6543 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6545 else if (eklass == mono_defaults.stringbuilder_class) {
6547 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6550 conv = (MonoMarshalConv)-1;
6552 mono_marshal_load_type_info (eklass);
6555 esize = sizeof (gpointer);
6557 esize = mono_class_native_size (eklass, NULL);
6559 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6565 mono_mb_emit_ldarg (mb, argnum);
6566 mono_mb_emit_stloc (mb, dest_ptr);
6568 if (eklass->blittable) {
6570 mono_mb_emit_ldarg (mb, argnum);
6572 mono_mb_emit_ldloc (mb, conv_arg);
6573 mono_mb_emit_byte (mb, CEE_CONV_I);
6574 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6575 mono_mb_emit_byte (mb, CEE_ADD);
6577 mono_mb_emit_ldloc (mb, conv_arg);
6578 mono_mb_emit_byte (mb, CEE_LDLEN);
6579 mono_mb_emit_icon (mb, esize);
6580 mono_mb_emit_byte (mb, CEE_MUL);
6581 mono_mb_emit_byte (mb, CEE_PREFIX1);
6582 mono_mb_emit_byte (mb, CEE_CPBLK);
6586 /* Emit marshalling loop */
6587 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6588 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6589 mono_mb_emit_stloc (mb, index_var);
6590 label2 = mono_mb_get_label (mb);
6591 mono_mb_emit_ldloc (mb, index_var);
6592 mono_mb_emit_ldloc (mb, conv_arg);
6593 mono_mb_emit_byte (mb, CEE_LDLEN);
6594 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6596 /* Emit marshalling code */
6598 g_assert (conv != -1);
6601 mono_mb_emit_ldloc (mb, dest_ptr);
6604 mono_mb_emit_ldloc (mb, conv_arg);
6605 mono_mb_emit_ldloc (mb, index_var);
6607 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6609 mono_mb_emit_icall (mb, conv_to_icall (conv));
6610 mono_mb_emit_byte (mb, CEE_STIND_I);
6613 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6614 mono_mb_emit_exception_marshal_directive (mb, msg);
6618 mono_mb_emit_add_to_local (mb, index_var, 1);
6619 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6621 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6623 mono_mb_patch_branch (mb, label1);
6624 mono_mb_patch_branch (mb, label3);
6628 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6630 guint32 label1, label2, label3;
6631 int index_var, src, dest, esize;
6632 MonoMarshalConv conv = (MonoMarshalConv)-1;
6633 gboolean is_string = FALSE;
6635 g_assert (!t->byref);
6637 eklass = klass->element_class;
6639 mono_marshal_load_type_info (eklass);
6641 if (eklass == mono_defaults.string_class) {
6643 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6646 g_assert_not_reached ();
6650 esize = sizeof (gpointer);
6651 else if (eklass == mono_defaults.char_class)
6652 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6654 esize = mono_class_native_size (eklass, NULL);
6656 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6657 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6659 mono_mb_emit_stloc (mb, src);
6660 mono_mb_emit_ldloc (mb, src);
6661 mono_mb_emit_stloc (mb, 3);
6663 /* Check for null */
6664 mono_mb_emit_ldloc (mb, src);
6665 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6667 /* Allocate native array */
6668 mono_mb_emit_icon (mb, esize);
6669 mono_mb_emit_ldloc (mb, src);
6670 mono_mb_emit_byte (mb, CEE_LDLEN);
6672 if (eklass == mono_defaults.string_class) {
6673 /* Make the array bigger for the terminating null */
6674 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6675 mono_mb_emit_byte (mb, CEE_ADD);
6677 mono_mb_emit_byte (mb, CEE_MUL);
6678 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6679 mono_mb_emit_stloc (mb, dest);
6680 mono_mb_emit_ldloc (mb, dest);
6681 mono_mb_emit_stloc (mb, 3);
6683 /* Emit marshalling loop */
6684 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6685 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6686 mono_mb_emit_stloc (mb, index_var);
6687 label2 = mono_mb_get_label (mb);
6688 mono_mb_emit_ldloc (mb, index_var);
6689 mono_mb_emit_ldloc (mb, src);
6690 mono_mb_emit_byte (mb, CEE_LDLEN);
6691 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6693 /* Emit marshalling code */
6695 g_assert (conv != -1);
6698 mono_mb_emit_ldloc (mb, dest);
6701 mono_mb_emit_ldloc (mb, src);
6702 mono_mb_emit_ldloc (mb, index_var);
6704 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6706 mono_mb_emit_icall (mb, conv_to_icall (conv));
6707 mono_mb_emit_byte (mb, CEE_STIND_I);
6710 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6711 mono_mb_emit_exception_marshal_directive (mb, msg);
6715 mono_mb_emit_add_to_local (mb, index_var, 1);
6716 mono_mb_emit_add_to_local (mb, dest, esize);
6718 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6720 mono_mb_patch_branch (mb, label3);
6721 mono_mb_patch_branch (mb, label1);
6725 g_assert_not_reached ();
6732 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6735 return &mono_defaults.int32_class->byval_arg;
6737 switch (spec->native) {
6738 case MONO_NATIVE_I1:
6739 case MONO_NATIVE_U1:
6740 return &mono_defaults.byte_class->byval_arg;
6741 case MONO_NATIVE_VARIANTBOOL:
6742 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6743 return &mono_defaults.int16_class->byval_arg;
6744 case MONO_NATIVE_BOOLEAN:
6745 return &mono_defaults.int32_class->byval_arg;
6747 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6748 return &mono_defaults.int32_class->byval_arg;
6754 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6756 MonoClass* conv_arg_class = mono_defaults.int32_class;
6758 switch (spec->native) {
6759 case MONO_NATIVE_I1:
6760 case MONO_NATIVE_U1:
6761 conv_arg_class = mono_defaults.byte_class;
6762 if (ldop) *ldop = CEE_LDIND_I1;
6764 case MONO_NATIVE_VARIANTBOOL:
6765 conv_arg_class = mono_defaults.int16_class;
6766 if (ldop) *ldop = CEE_LDIND_I2;
6768 case MONO_NATIVE_BOOLEAN:
6771 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6774 return conv_arg_class;
6778 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6779 MonoMarshalSpec *spec,
6780 int conv_arg, MonoType **conv_arg_type,
6781 MarshalAction action)
6785 case MARSHAL_ACTION_CONV_IN:
6787 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6789 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6792 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6793 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6795 *conv_arg_type = &conv_arg_class->this_arg;
6797 *conv_arg_type = &conv_arg_class->byval_arg;
6803 MonoMethodBuilder *mb = m->mb;
6806 case MARSHAL_ACTION_CONV_IN: {
6807 MonoType *local_type;
6809 guint8 ldc_op = CEE_LDC_I4_1;
6811 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6813 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6815 *conv_arg_type = local_type;
6816 conv_arg = mono_mb_add_local (mb, local_type);
6818 mono_mb_emit_ldarg (mb, argnum);
6820 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6821 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6822 mono_mb_emit_byte (mb, ldc_op);
6823 mono_mb_emit_stloc (mb, conv_arg);
6824 mono_mb_patch_branch (mb, label_false);
6829 case MARSHAL_ACTION_CONV_OUT:
6831 int label_false, label_end;
6835 mono_mb_emit_ldarg (mb, argnum);
6836 mono_mb_emit_ldloc (mb, conv_arg);
6838 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6839 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6841 label_end = mono_mb_emit_branch (mb, CEE_BR);
6842 mono_mb_patch_branch (mb, label_false);
6843 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6844 mono_mb_patch_branch (mb, label_end);
6846 mono_mb_emit_byte (mb, CEE_STIND_I1);
6850 case MARSHAL_ACTION_PUSH:
6852 mono_mb_emit_ldloc_addr (mb, conv_arg);
6854 mono_mb_emit_ldloc (mb, conv_arg);
6856 mono_mb_emit_ldarg (mb, argnum);
6859 case MARSHAL_ACTION_CONV_RESULT:
6860 /* maybe we need to make sure that it fits within 8 bits */
6861 mono_mb_emit_stloc (mb, 3);
6864 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6865 MonoClass* conv_arg_class = mono_defaults.int32_class;
6866 guint8 ldop = CEE_LDIND_I4;
6867 int label_null, label_false;
6869 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6870 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6873 *conv_arg_type = &conv_arg_class->this_arg;
6875 *conv_arg_type = &conv_arg_class->byval_arg;
6878 mono_mb_emit_ldarg (mb, argnum);
6882 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6883 mono_mb_emit_ldarg (mb, argnum);
6884 mono_mb_emit_byte (mb, ldop);
6888 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6889 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6890 mono_mb_emit_stloc (mb, conv_arg);
6891 mono_mb_patch_branch (mb, label_false);
6894 mono_mb_patch_branch (mb, label_null);
6898 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6899 guint8 stop = CEE_STIND_I4;
6900 guint8 ldc_op = CEE_LDC_I4_1;
6901 int label_null,label_false, label_end;;
6906 switch (spec->native) {
6907 case MONO_NATIVE_I1:
6908 case MONO_NATIVE_U1:
6909 stop = CEE_STIND_I1;
6911 case MONO_NATIVE_VARIANTBOOL:
6912 stop = CEE_STIND_I2;
6913 ldc_op = CEE_LDC_I4_M1;
6921 mono_mb_emit_ldarg (mb, argnum);
6922 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6924 mono_mb_emit_ldarg (mb, argnum);
6925 mono_mb_emit_ldloc (mb, conv_arg);
6927 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6928 mono_mb_emit_byte (mb, ldc_op);
6929 label_end = mono_mb_emit_branch (mb, CEE_BR);
6931 mono_mb_patch_branch (mb, label_false);
6932 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6933 mono_mb_patch_branch (mb, label_end);
6935 mono_mb_emit_byte (mb, stop);
6936 mono_mb_patch_branch (mb, label_null);
6941 g_assert_not_reached ();
6948 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6949 MonoMarshalSpec *spec, int conv_arg,
6950 MonoType **conv_arg_type, MarshalAction action)
6953 MonoMethodBuilder *mb = m->mb;
6956 case MARSHAL_ACTION_CONV_IN:
6957 /* MS seems to allow this in some cases, ie. bxc #158 */
6959 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6960 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6961 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6966 case MARSHAL_ACTION_PUSH:
6967 mono_mb_emit_ldarg (mb, argnum);
6970 case MARSHAL_ACTION_CONV_RESULT:
6971 /* no conversions necessary */
6972 mono_mb_emit_stloc (mb, 3);
6983 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6984 MonoMarshalSpec *spec, int conv_arg,
6985 MonoType **conv_arg_type, MarshalAction action)
6988 MonoMethodBuilder *mb = m->mb;
6991 case MARSHAL_ACTION_PUSH:
6992 /* fixme: dont know how to marshal that. We cant simply
6993 * convert it to a one byte UTF8 character, because an
6994 * unicode character may need more that one byte in UTF8 */
6995 mono_mb_emit_ldarg (mb, argnum);
6998 case MARSHAL_ACTION_CONV_RESULT:
6999 /* fixme: we need conversions here */
7000 mono_mb_emit_stloc (mb, 3);
7011 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7012 MonoMarshalSpec *spec, int conv_arg,
7013 MonoType **conv_arg_type, MarshalAction action)
7016 MonoMethodBuilder *mb = m->mb;
7019 case MARSHAL_ACTION_PUSH:
7020 mono_mb_emit_ldarg (mb, argnum);
7023 case MARSHAL_ACTION_CONV_RESULT:
7024 /* no conversions necessary */
7025 mono_mb_emit_stloc (mb, 3);
7036 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7037 MonoMarshalSpec *spec, int conv_arg,
7038 MonoType **conv_arg_type, MarshalAction action)
7040 /* Ensure that we have marshalling info for this param */
7041 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7043 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7044 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7046 if (spec && spec->native == MONO_NATIVE_ASANY)
7047 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7050 case MONO_TYPE_VALUETYPE:
7051 if (t->data.klass == mono_defaults.handleref_class)
7052 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7054 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7055 case MONO_TYPE_STRING:
7056 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7057 case MONO_TYPE_CLASS:
7058 case MONO_TYPE_OBJECT:
7060 if (spec && spec->native == MONO_NATIVE_STRUCT)
7061 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7063 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7064 spec->native == MONO_NATIVE_IDISPATCH ||
7065 spec->native == MONO_NATIVE_INTERFACE))
7066 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7067 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7068 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7069 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7070 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7073 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7074 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7075 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7077 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7078 case MONO_TYPE_ARRAY:
7079 case MONO_TYPE_SZARRAY:
7080 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7081 case MONO_TYPE_BOOLEAN:
7082 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7084 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7085 case MONO_TYPE_CHAR:
7086 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7099 case MONO_TYPE_FNPTR:
7100 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7101 case MONO_TYPE_GENERICINST:
7102 if (mono_type_generic_inst_is_valuetype (t))
7103 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7105 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7113 * mono_marshal_emit_native_wrapper:
7114 * @image: the image to use for looking up custom marshallers
7115 * @sig: The signature of the native function
7116 * @piinfo: Marshalling information
7117 * @mspecs: Marshalling information
7118 * @aot: whenever the created method will be compiled by the AOT compiler
7119 * @method: if non-NULL, the pinvoke method to call
7120 * @check_exceptions: Whenever to check for pending exceptions after the native call
7121 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7123 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7126 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)
7128 EmitMarshalContext m;
7129 MonoMethodSignature *csig;
7131 int i, argnum, *tmp_locals;
7132 int type, param_shift = 0;
7133 static MonoMethodSignature *get_last_error_sig = NULL;
7134 int coop_gc_stack_dummy, coop_gc_var;
7136 memset (&m, 0, sizeof (m));
7141 /* we copy the signature, so that we can set pinvoke to 0 */
7143 /* The function address is passed as the first argument */
7144 g_assert (!sig->hasthis);
7147 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7155 /* we allocate local for use with emit_struct_conv() */
7156 /* allocate local 0 (pointer) src_ptr */
7157 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7158 /* allocate local 1 (pointer) dst_ptr */
7159 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7160 /* allocate local 2 (boolean) delete_old */
7161 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7163 /* delete_old = FALSE */
7164 mono_mb_emit_icon (mb, 0);
7165 mono_mb_emit_stloc (mb, 2);
7167 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7168 /* allocate local 3 to store the return value */
7169 mono_mb_add_local (mb, sig->ret);
7172 if (mono_threads_is_coop_enabled ()) {
7173 /* local 4, dummy local used to get a stack address for suspend funcs */
7174 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7175 /* local 5, the local to be used when calling the suspend funcs */
7176 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7179 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7180 /* Return type custom marshaling */
7182 * Since we can't determine the return type of the unmanaged function,
7183 * we assume it returns a pointer, and pass that pointer to
7184 * MarshalNativeToManaged.
7186 csig->ret = &mono_defaults.int_class->byval_arg;
7189 /* we first do all conversions */
7190 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7191 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7193 for (i = 0; i < sig->param_count; i ++) {
7194 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7197 /* push all arguments */
7200 mono_mb_emit_byte (mb, CEE_LDARG_0);
7202 for (i = 0; i < sig->param_count; i++) {
7203 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7206 if (mono_threads_is_coop_enabled ()) {
7207 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7208 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7209 mono_mb_emit_stloc (mb, coop_gc_var);
7212 /* call the native method */
7214 mono_mb_emit_byte (mb, CEE_LDARG_0);
7215 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7216 mono_mb_emit_byte (mb, CEE_LDIND_I);
7217 mono_mb_emit_calli (mb, csig);
7218 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7220 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7222 g_assert_not_reached ();
7227 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7228 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7229 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7230 mono_mb_emit_calli (mb, csig);
7232 mono_mb_emit_native_call (mb, csig, func);
7236 /* Set LastError if needed */
7237 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7238 if (!get_last_error_sig) {
7239 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7240 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7241 get_last_error_sig->pinvoke = 1;
7246 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7247 * clobber its value.
7249 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7250 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7252 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7256 if (mono_threads_is_coop_enabled ()) {
7257 mono_mb_emit_ldloc (mb, coop_gc_var);
7258 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7259 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7262 /* convert the result */
7263 if (!sig->ret->byref) {
7264 MonoMarshalSpec *spec = mspecs [0];
7265 type = sig->ret->type;
7267 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7268 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7273 case MONO_TYPE_VOID:
7275 case MONO_TYPE_VALUETYPE:
7276 klass = sig->ret->data.klass;
7277 if (klass->enumtype) {
7278 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7281 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7295 case MONO_TYPE_FNPTR:
7296 case MONO_TYPE_STRING:
7297 case MONO_TYPE_CLASS:
7298 case MONO_TYPE_OBJECT:
7299 case MONO_TYPE_BOOLEAN:
7300 case MONO_TYPE_ARRAY:
7301 case MONO_TYPE_SZARRAY:
7302 case MONO_TYPE_CHAR:
7304 case MONO_TYPE_GENERICINST:
7305 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7307 case MONO_TYPE_TYPEDBYREF:
7309 g_warning ("return type 0x%02x unknown", sig->ret->type);
7310 g_assert_not_reached ();
7314 mono_mb_emit_stloc (mb, 3);
7318 * Need to call this after converting the result since MONO_VTADDR needs
7319 * to be adjacent to the call instruction.
7321 if (check_exceptions)
7322 emit_thread_interrupt_checkpoint (mb);
7324 /* we need to convert byref arguments back and free string arrays */
7325 for (i = 0; i < sig->param_count; i++) {
7326 MonoType *t = sig->params [i];
7327 MonoMarshalSpec *spec = mspecs [i + 1];
7329 argnum = i + param_shift;
7331 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7332 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7337 case MONO_TYPE_STRING:
7338 case MONO_TYPE_VALUETYPE:
7339 case MONO_TYPE_CLASS:
7340 case MONO_TYPE_OBJECT:
7341 case MONO_TYPE_SZARRAY:
7342 case MONO_TYPE_BOOLEAN:
7343 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7350 if (!MONO_TYPE_IS_VOID(sig->ret))
7351 mono_mb_emit_ldloc (mb, 3);
7353 mono_mb_emit_byte (mb, CEE_RET);
7355 #endif /* DISABLE_JIT */
7358 * mono_marshal_get_native_wrapper:
7359 * @method: The MonoMethod to wrap.
7360 * @check_exceptions: Whenever to check for pending exceptions
7362 * generates IL code for the pinvoke wrapper (the generated method
7363 * calls the unmanaged code in piinfo->addr)
7364 * The wrapper info for the wrapper is a WrapperInfo structure.
7367 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7369 MonoMethodSignature *sig, *csig;
7370 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7371 MonoMethodBuilder *mb;
7372 MonoMarshalSpec **mspecs;
7375 gboolean pinvoke = FALSE;
7378 const char *exc_class = "MissingMethodException";
7379 const char *exc_arg = NULL;
7382 g_assert (method != NULL);
7383 g_assert (mono_method_signature (method)->pinvoke);
7385 GHashTable **cache_ptr;
7388 if (check_exceptions)
7389 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7391 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7393 if (check_exceptions)
7394 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7396 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7399 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7401 if ((res = mono_marshal_find_in_cache (cache, method)))
7404 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7405 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7409 return mono_cominterop_get_native_wrapper (method);
7411 g_assert_not_reached ();
7415 sig = mono_method_signature (method);
7417 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7418 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7421 if (!piinfo->addr) {
7423 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7424 exc_arg = "Method contains unsupported native code";
7426 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7428 piinfo->addr = mono_lookup_internal_call (method);
7432 /* hack - redirect certain string constructors to CreateString */
7433 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7434 g_assert (!pinvoke);
7435 g_assert (method->string_ctor);
7436 g_assert (sig->hasthis);
7438 /* CreateString returns a value */
7439 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7440 csig->ret = &mono_defaults.string_class->byval_arg;
7444 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7445 if (!strcmp ("CreateString", res->name) &&
7446 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7449 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7450 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7452 /* create a wrapper to preserve .ctor in stack trace */
7453 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7456 mono_mb_emit_byte (mb, CEE_LDARG_0);
7457 for (i = 1; i <= csig->param_count; i++)
7458 mono_mb_emit_ldarg (mb, i);
7459 mono_mb_emit_managed_call (mb, res, NULL);
7460 mono_mb_emit_byte (mb, CEE_RET);
7463 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7464 info->d.string_ctor.method = method;
7466 /* use native_wrapper_cache because internal calls are looked up there */
7467 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7468 csig->param_count + 1, info, NULL);
7475 /* exception will be thrown */
7476 piinfo->addr = NULL;
7477 g_warning ("cannot find CreateString for .ctor");
7480 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7482 mb->method->save_lmf = 1;
7485 * In AOT mode and embedding scenarios, it is possible that the icall is not
7486 * registered in the runtime doing the AOT compilation.
7488 if (!piinfo->addr && !aot) {
7490 mono_mb_emit_exception (mb, exc_class, exc_arg);
7492 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7493 info->d.managed_to_native.method = method;
7495 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7497 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7498 csig->param_count + 16, info, NULL);
7504 /* internal calls: we simply push all arguments and call the method (no conversions) */
7505 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7507 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7509 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7511 /* hack - string constructors returns a value */
7512 if (method->string_ctor)
7513 csig->ret = &mono_defaults.string_class->byval_arg;
7520 * Add a null check since public icalls can be called with 'call' which
7521 * does no such check.
7523 mono_mb_emit_byte (mb, CEE_LDARG_0);
7524 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7525 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7526 mono_mb_patch_branch (mb, pos);
7528 mono_mb_emit_byte (mb, CEE_LDARG_0);
7531 for (i = 0; i < sig->param_count; i++)
7532 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7535 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7536 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7537 mono_mb_emit_calli (mb, csig);
7539 g_assert (piinfo->addr);
7540 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7542 if (check_exceptions)
7543 emit_thread_interrupt_checkpoint (mb);
7544 mono_mb_emit_byte (mb, CEE_RET);
7546 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7547 info->d.managed_to_native.method = method;
7549 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7551 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7560 g_assert (piinfo->addr);
7563 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7564 mono_method_get_marshal_info (method, mspecs);
7566 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7568 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7569 info->d.managed_to_native.method = method;
7571 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7573 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7578 for (i = sig->param_count; i >= 0; i--)
7580 mono_metadata_free_marshal_spec (mspecs [i]);
7584 /* mono_method_print_code (res); */
7590 * mono_marshal_get_native_func_wrapper:
7591 * @image: The image to use for memory allocation and for looking up custom marshallers.
7592 * @sig: The signature of the function
7593 * @func: The native function to wrap
7595 * Returns a wrapper method around native functions, similar to the pinvoke
7599 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7600 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7602 MonoMethodSignature *csig;
7604 SignaturePointerPair key, *new_key;
7605 MonoMethodBuilder *mb;
7614 // Generic types are not safe to place in MonoImage caches.
7615 g_assert (!sig->is_inflated);
7617 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7618 if ((res = mono_marshal_find_in_cache (cache, &key)))
7621 name = g_strdup_printf ("wrapper_native_%p", func);
7622 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7623 mb->method->save_lmf = 1;
7626 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7629 csig = mono_metadata_signature_dup_full (image, sig);
7632 new_key = g_new (SignaturePointerPair,1);
7633 new_key->sig = csig;
7634 new_key->pointer = func;
7636 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7642 mono_marshal_set_wrapper_info (res, NULL);
7648 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7652 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7654 MonoMethodSignature *sig, *csig;
7655 MonoMethodBuilder *mb;
7660 MonoMethodPInvoke mpiinfo;
7661 MonoMethodPInvoke *piinfo = &mpiinfo;
7662 MonoMarshalSpec **mspecs;
7663 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7664 MonoImage *image = invoke->klass->image;
7667 // FIXME: include UnmanagedFunctionPointerAttribute info
7670 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7672 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7674 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7677 memset (&mpiinfo, 0, sizeof (mpiinfo));
7678 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7680 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7681 mono_method_get_marshal_info (invoke, mspecs);
7682 /* Freed below so don't alloc from mempool */
7683 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7686 name = g_strdup_printf ("wrapper_aot_native");
7687 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7688 mb->method->save_lmf = 1;
7691 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7694 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7695 info->d.managed_to_native.method = invoke;
7697 g_assert (!sig->hasthis);
7698 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7700 res = mono_mb_create_and_cache_full (cache, invoke,
7701 mb, csig, csig->param_count + 16,
7705 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7707 mono_metadata_free_marshal_spec (mspecs [i]);
7715 * mono_marshal_emit_managed_wrapper:
7717 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7718 * the delegate which wraps the managed method to be called. For closed delegates,
7719 * it could have fewer parameters than the method it wraps.
7720 * THIS_LOC is the memory location where the target of the delegate is stored.
7723 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7726 MonoMethodSignature *sig, *csig;
7732 /* we first do all conversions */
7733 for (i = 0; i < sig->param_count; i ++) {
7734 MonoType *t = sig->params [i];
7737 case MONO_TYPE_OBJECT:
7738 case MONO_TYPE_CLASS:
7739 case MONO_TYPE_VALUETYPE:
7740 case MONO_TYPE_ARRAY:
7741 case MONO_TYPE_SZARRAY:
7742 case MONO_TYPE_STRING:
7743 case MONO_TYPE_BOOLEAN:
7744 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7748 if (!sig->ret->byref) {
7749 switch (sig->ret->type) {
7750 case MONO_TYPE_STRING:
7751 csig->ret = &mono_defaults.int_class->byval_arg;
7758 MonoMethodSignature *sig, *csig;
7760 gboolean closed = FALSE;
7761 int coop_gc_var, coop_gc_dummy_local;
7766 /* allocate local 0 (pointer) src_ptr */
7767 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7768 /* allocate local 1 (pointer) dst_ptr */
7769 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7770 /* allocate local 2 (boolean) delete_old */
7771 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7773 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7774 /* Closed delegate */
7775 g_assert (sig->param_count == invoke_sig->param_count + 1);
7777 /* Use a new signature without the first argument */
7778 sig = mono_metadata_signature_dup (sig);
7779 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7780 sig->param_count --;
7783 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7784 /* allocate local 3 to store the return value */
7785 mono_mb_add_local (mb, sig->ret);
7788 if (mono_threads_is_coop_enabled ()) {
7789 /* local 4, the local to be used when calling the reset_blocking funcs */
7790 /* tons of code hardcode 3 to be the return var */
7791 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7792 /* local 5, the local used to get a stack address for suspend funcs */
7793 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7796 mono_mb_emit_icon (mb, 0);
7797 mono_mb_emit_stloc (mb, 2);
7800 * Might need to attach the thread to the JIT or change the
7801 * domain for the callback.
7803 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7804 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7806 if (mono_threads_is_coop_enabled ()) {
7807 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7808 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7809 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7810 mono_mb_emit_stloc (mb, coop_gc_var);
7813 /* we first do all conversions */
7814 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7815 for (i = 0; i < sig->param_count; i ++) {
7816 MonoType *t = sig->params [i];
7819 case MONO_TYPE_OBJECT:
7820 case MONO_TYPE_CLASS:
7821 case MONO_TYPE_VALUETYPE:
7822 case MONO_TYPE_ARRAY:
7823 case MONO_TYPE_SZARRAY:
7824 case MONO_TYPE_STRING:
7825 case MONO_TYPE_BOOLEAN:
7826 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7835 emit_thread_interrupt_checkpoint (mb);
7838 if (target_handle) {
7839 mono_mb_emit_icon (mb, (gint32)target_handle);
7840 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7843 g_assert_not_reached ();
7845 } else if (closed) {
7846 mono_mb_emit_icon (mb, (gint32)target_handle);
7847 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7850 for (i = 0; i < sig->param_count; i++) {
7851 MonoType *t = sig->params [i];
7853 if (tmp_locals [i]) {
7855 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7857 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7860 mono_mb_emit_ldarg (mb, i);
7863 mono_mb_emit_managed_call (mb, method, NULL);
7865 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7866 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7867 } else if (!sig->ret->byref) {
7868 switch (sig->ret->type) {
7869 case MONO_TYPE_VOID:
7871 case MONO_TYPE_BOOLEAN:
7874 case MONO_TYPE_CHAR:
7886 case MONO_TYPE_OBJECT:
7887 mono_mb_emit_stloc (mb, 3);
7889 case MONO_TYPE_STRING:
7890 csig->ret = &mono_defaults.int_class->byval_arg;
7891 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7893 case MONO_TYPE_VALUETYPE:
7894 case MONO_TYPE_CLASS:
7895 case MONO_TYPE_SZARRAY:
7896 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7899 g_warning ("return type 0x%02x unknown", sig->ret->type);
7900 g_assert_not_reached ();
7903 mono_mb_emit_stloc (mb, 3);
7906 /* Convert byref arguments back */
7907 for (i = 0; i < sig->param_count; i ++) {
7908 MonoType *t = sig->params [i];
7909 MonoMarshalSpec *spec = mspecs [i + 1];
7911 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7912 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7914 else if (t->byref) {
7916 case MONO_TYPE_CLASS:
7917 case MONO_TYPE_VALUETYPE:
7918 case MONO_TYPE_OBJECT:
7919 case MONO_TYPE_STRING:
7920 case MONO_TYPE_BOOLEAN:
7921 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7927 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7928 /* The [Out] information is encoded in the delegate signature */
7930 case MONO_TYPE_SZARRAY:
7931 case MONO_TYPE_CLASS:
7932 case MONO_TYPE_VALUETYPE:
7933 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7936 g_assert_not_reached ();
7941 if (mono_threads_is_coop_enabled ()) {
7942 /* XXX merge reset_blocking_end with detach */
7943 mono_mb_emit_ldloc (mb, coop_gc_var);
7944 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7945 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7948 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7949 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7951 if (m->retobj_var) {
7952 mono_mb_emit_ldloc (mb, m->retobj_var);
7953 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7954 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7957 if (!MONO_TYPE_IS_VOID(sig->ret))
7958 mono_mb_emit_ldloc (mb, 3);
7959 mono_mb_emit_byte (mb, CEE_RET);
7968 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7970 MonoMethodSignature *sig;
7975 * Under windows, delegates passed to native code must use the STDCALL
7976 * calling convention.
7978 csig->call_convention = MONO_CALL_STDCALL;
7981 sig = mono_method_signature (method);
7983 /* Change default calling convention if needed */
7984 /* Why is this a modopt ? */
7985 if (sig->ret && sig->ret->num_mods) {
7986 for (i = 0; i < sig->ret->num_mods; ++i) {
7988 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7989 g_assert (mono_error_ok (&error));
7990 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7991 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7992 csig->call_convention = MONO_CALL_C;
7993 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7994 csig->call_convention = MONO_CALL_STDCALL;
7995 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7996 csig->call_convention = MONO_CALL_FASTCALL;
7997 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7998 csig->call_convention = MONO_CALL_THISCALL;
8005 * generates IL code to call managed methods from unmanaged code
8006 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8009 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8011 static MonoClass *UnmanagedFunctionPointerAttribute;
8012 MonoMethodSignature *sig, *csig, *invoke_sig;
8013 MonoMethodBuilder *mb;
8014 MonoMethod *res, *invoke;
8015 MonoMarshalSpec **mspecs;
8016 MonoMethodPInvoke piinfo;
8019 EmitMarshalContext m;
8021 g_assert (method != NULL);
8022 g_assert (!mono_method_signature (method)->pinvoke);
8025 * FIXME: Should cache the method+delegate type pair, since the same method
8026 * could be called with different delegates, thus different marshalling
8029 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8031 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8034 invoke = mono_get_delegate_invoke (delegate_klass);
8035 invoke_sig = mono_method_signature (invoke);
8037 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8038 mono_method_get_marshal_info (invoke, mspecs);
8040 sig = mono_method_signature (method);
8042 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8044 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8045 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8047 /* we copy the signature, so that we can modify it */
8049 /* Need to free this later */
8050 csig = mono_metadata_signature_dup (invoke_sig);
8052 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8056 memset (&m, 0, sizeof (m));
8062 m.image = method->klass->image;
8064 mono_marshal_set_callconv_from_modopt (invoke, csig);
8066 /* Handle the UnmanagedFunctionPointerAttribute */
8067 if (!UnmanagedFunctionPointerAttribute)
8068 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8070 /* The attribute is only available in Net 2.0 */
8071 if (UnmanagedFunctionPointerAttribute) {
8072 MonoCustomAttrInfo *cinfo;
8073 MonoCustomAttrEntry *attr;
8076 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8077 * contents of the attribute without constructing it, as that might not be
8078 * possible when running in cross-compiling mode.
8080 cinfo = mono_custom_attrs_from_class (delegate_klass);
8083 for (i = 0; i < cinfo->num_attrs; ++i) {
8084 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8085 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8086 attr = &cinfo->attrs [i];
8092 MonoArray *typed_args, *named_args;
8093 CattrNamedArg *arginfo;
8097 MonoBoolean set_last_error = 0;
8100 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8101 g_assert (mono_error_ok (&error));
8102 g_assert (mono_array_length (typed_args) == 1);
8105 o = mono_array_get (typed_args, MonoObject*, 0);
8106 call_conv = *(gint32*)mono_object_unbox (o);
8109 for (i = 0; i < mono_array_length (named_args); ++i) {
8110 CattrNamedArg *narg = &arginfo [i];
8112 o = mono_array_get (named_args, MonoObject*, i);
8114 g_assert (narg->field);
8115 if (!strcmp (narg->field->name, "CharSet")) {
8116 charset = *(gint32*)mono_object_unbox (o);
8117 } else if (!strcmp (narg->field->name, "SetLastError")) {
8118 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8119 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8120 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8121 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8122 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8124 g_assert_not_reached ();
8130 memset (&piinfo, 0, sizeof (piinfo));
8132 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8134 csig->call_convention = call_conv - 1;
8137 if (cinfo && !cinfo->cached)
8138 mono_custom_attrs_free (cinfo);
8141 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8143 if (!target_handle) {
8146 // FIXME: Associate it with the method+delegate_klass pair
8147 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8148 info->d.native_to_managed.method = method;
8149 info->d.native_to_managed.klass = delegate_klass;
8151 res = mono_mb_create_and_cache_full (cache, method,
8152 mb, csig, sig->param_count + 16,
8158 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8162 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8164 mono_metadata_free_marshal_spec (mspecs [i]);
8167 /* mono_method_print_code (res); */
8173 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8177 MonoMethodSignature *sig;
8178 MonoMethodBuilder *mb;
8183 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8185 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8188 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8189 MonoMethodSignature *csig;
8190 MonoMarshalSpec **mspecs;
8191 EmitMarshalContext m;
8193 sig = mono_method_signature (method);
8194 g_assert (!sig->hasthis);
8196 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8197 mono_method_get_marshal_info (method, mspecs);
8199 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8200 csig = mono_metadata_signature_dup_full (image, sig);
8204 memset (&m, 0, sizeof (m));
8212 mono_marshal_set_callconv_from_modopt (method, csig);
8214 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8216 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8221 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8224 for (i = sig->param_count; i >= 0; i--)
8226 mono_metadata_free_marshal_spec (mspecs [i]);
8229 return mono_compile_method (method);
8232 sig = mono_method_signature (method);
8233 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8235 param_count = sig->param_count + sig->hasthis;
8237 for (i = 0; i < param_count; i++)
8238 mono_mb_emit_ldarg (mb, i);
8240 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8241 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8243 mono_mb_emit_op (mb, CEE_CALL, method);
8244 mono_mb_emit_byte (mb, CEE_RET);
8249 method = mono_mb_create (mb, sig, param_count, NULL);
8252 return mono_compile_method (method);
8258 * The code directly following this is the cache hit, value positive branch
8260 * This function takes a new method builder with 0 locals and adds two locals
8261 * to create multiple out-branches and the fall through state of having the object
8262 * on the stack after a cache miss
8265 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8266 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8267 MonoMethodBuilder *mb)
8271 /* allocate local 0 (pointer) obj_vtable */
8272 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8273 /* allocate local 1 (pointer) cached_vtable */
8274 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8277 mono_mb_emit_ldarg (mb, obj_arg_position);
8278 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8280 /*obj_vtable = obj->vtable;*/
8281 mono_mb_emit_ldarg (mb, obj_arg_position);
8282 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8283 mono_mb_emit_byte (mb, CEE_LDIND_I);
8284 mono_mb_emit_stloc (mb, 0);
8286 /* cached_vtable = *cache*/
8287 mono_mb_emit_ldarg (mb, cache_arg_position);
8288 mono_mb_emit_byte (mb, CEE_LDIND_I);
8289 mono_mb_emit_stloc (mb, 1);
8291 mono_mb_emit_ldloc (mb, 1);
8292 mono_mb_emit_byte (mb, CEE_LDC_I4);
8293 mono_mb_emit_i4 (mb, ~0x1);
8294 mono_mb_emit_byte (mb, CEE_CONV_I);
8295 mono_mb_emit_byte (mb, CEE_AND);
8296 mono_mb_emit_ldloc (mb, 0);
8297 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8298 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8300 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8301 mono_mb_emit_ldloc (mb, 1);
8302 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8303 mono_mb_emit_byte (mb, CEE_CONV_U);
8304 mono_mb_emit_byte (mb, CEE_AND);
8305 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8306 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8309 mono_mb_patch_branch (mb, cache_miss_pos);
8312 mono_mb_emit_ldarg (mb, obj_arg_position);
8313 mono_mb_emit_ldarg (mb, class_arg_position);
8314 mono_mb_emit_ldarg (mb, cache_arg_position);
8315 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8318 #endif /* DISABLE_JIT */
8321 * This does the equivalent of mono_object_castclass_with_cache.
8322 * The wrapper info for the wrapper is a WrapperInfo structure.
8325 mono_marshal_get_castclass_with_cache (void)
8327 static MonoMethod *cached;
8329 MonoMethodBuilder *mb;
8330 MonoMethodSignature *sig;
8331 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8334 const int obj_arg_position = 0;
8335 const int class_arg_position = 1;
8336 const int cache_arg_position = 2;
8341 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8342 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8343 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8344 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8345 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8346 sig->ret = &mono_defaults.object_class->byval_arg;
8350 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8351 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8352 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8355 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8356 mono_mb_emit_ldarg (mb, obj_arg_position);
8357 mono_mb_emit_byte (mb, CEE_RET);
8360 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8361 mono_mb_patch_branch (mb, invalid_cast_pos);
8362 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8365 mono_mb_patch_branch (mb, return_null_pos);
8366 mono_mb_emit_byte (mb, CEE_LDNULL);
8367 mono_mb_emit_byte (mb, CEE_RET);
8368 #endif /* DISABLE_JIT */
8370 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8371 res = mono_mb_create (mb, sig, 8, info);
8374 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8375 mono_free_method (res);
8376 mono_metadata_free_method_signature (sig);
8384 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8386 MonoObject *isinst = mono_object_isinst (obj, klass);
8388 #ifndef DISABLE_REMOTING
8389 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8393 uintptr_t cache_update = (uintptr_t)obj->vtable;
8395 cache_update = cache_update | 0x1;
8397 *cache = cache_update;
8403 * This does the equivalent of mono_object_isinst_with_cache.
8404 * The wrapper info for the wrapper is a WrapperInfo structure.
8407 mono_marshal_get_isinst_with_cache (void)
8409 static MonoMethod *cached;
8411 MonoMethodBuilder *mb;
8412 MonoMethodSignature *sig;
8413 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8416 const int obj_arg_position = 0;
8417 const int class_arg_position = 1;
8418 const int cache_arg_position = 2;
8423 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8424 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8426 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8428 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8430 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8431 sig->ret = &mono_defaults.object_class->byval_arg;
8435 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8436 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8437 // Return the object gotten via the slow path.
8438 mono_mb_emit_byte (mb, CEE_RET);
8441 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8442 mono_mb_patch_branch (mb, return_null_pos);
8443 mono_mb_emit_byte (mb, CEE_LDNULL);
8444 mono_mb_emit_byte (mb, CEE_RET);
8447 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8448 mono_mb_emit_ldarg (mb, 0);
8449 mono_mb_emit_byte (mb, CEE_RET);
8452 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8453 res = mono_mb_create (mb, sig, 8, info);
8456 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8457 mono_free_method (res);
8458 mono_metadata_free_method_signature (sig);
8466 * mono_marshal_get_isinst:
8467 * @klass: the type of the field
8469 * This method generates a function which can be used to check if an object is
8470 * an instance of the given type, icluding the case where the object is a proxy.
8471 * The generated function has the following signature:
8472 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8475 mono_marshal_get_isinst (MonoClass *klass)
8477 static MonoMethodSignature *isint_sig = NULL;
8481 int pos_was_ok, pos_end;
8482 #ifndef DISABLE_REMOTING
8483 int pos_end2, pos_failed;
8486 MonoMethodBuilder *mb;
8488 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8489 if ((res = mono_marshal_find_in_cache (cache, klass)))
8493 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8494 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8495 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8496 isint_sig->pinvoke = 0;
8499 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8500 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8503 mb->method->save_lmf = 1;
8506 /* check if the object is a proxy that needs special cast */
8507 mono_mb_emit_ldarg (mb, 0);
8508 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8509 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8511 /* The result of MONO_CISINST can be:
8512 0) the type check succeeded
8513 1) the type check did not succeed
8514 2) a CanCastTo call is needed */
8515 #ifndef DISABLE_REMOTING
8516 mono_mb_emit_byte (mb, CEE_DUP);
8517 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8519 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8520 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8522 /* get the real proxy from the transparent proxy*/
8524 mono_mb_emit_ldarg (mb, 0);
8525 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8526 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8530 mono_mb_patch_branch (mb, pos_failed);
8531 mono_mb_emit_byte (mb, CEE_LDNULL);
8532 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8536 mono_mb_patch_branch (mb, pos_was_ok);
8537 mono_mb_emit_byte (mb, CEE_POP);
8538 mono_mb_emit_ldarg (mb, 0);
8542 mono_mb_patch_branch (mb, pos_end);
8543 mono_mb_patch_branch (mb, pos_end2);
8544 mono_mb_emit_byte (mb, CEE_RET);
8546 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8550 mono_mb_emit_byte (mb, CEE_LDNULL);
8551 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8555 mono_mb_patch_branch (mb, pos_was_ok);
8556 mono_mb_emit_ldarg (mb, 0);
8560 mono_mb_patch_branch (mb, pos_end);
8561 mono_mb_emit_byte (mb, CEE_RET);
8562 #endif /* DISABLE_REMOTING */
8563 #endif /* DISABLE_JIT */
8565 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8566 info->d.proxy.klass = klass;
8567 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8574 * mono_marshal_get_castclass:
8575 * @klass: the type of the field
8577 * This method generates a function which can be used to cast an object to
8578 * an instance of the given type, icluding the case where the object is a proxy.
8579 * The generated function has the following signature:
8580 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8581 * The wrapper info for the wrapper is a WrapperInfo structure.
8584 mono_marshal_get_castclass (MonoClass *klass)
8586 static MonoMethodSignature *castclass_sig = NULL;
8589 #ifndef DISABLE_REMOTING
8590 int pos_was_ok, pos_was_ok2;
8593 MonoMethodBuilder *mb;
8596 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8597 if ((res = mono_marshal_find_in_cache (cache, klass)))
8600 if (!castclass_sig) {
8601 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8602 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8603 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8604 castclass_sig->pinvoke = 0;
8607 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8608 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8611 mb->method->save_lmf = 1;
8614 /* check if the object is a proxy that needs special cast */
8615 mono_mb_emit_ldarg (mb, 0);
8616 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8617 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8619 /* The result of MONO_CCASTCLASS can be:
8620 0) the cast is valid
8621 1) cast of unknown proxy type
8622 or an exception if the cast is is invalid
8624 #ifndef DISABLE_REMOTING
8625 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8627 /* get the real proxy from the transparent proxy*/
8629 mono_mb_emit_ldarg (mb, 0);
8630 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8631 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8634 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8637 mono_mb_patch_branch (mb, pos_was_ok);
8638 mono_mb_patch_branch (mb, pos_was_ok2);
8640 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8641 mono_mb_emit_byte (mb, CEE_POP);
8642 #endif /* DISABLE_REMOTING */
8644 mono_mb_emit_ldarg (mb, 0);
8647 mono_mb_emit_byte (mb, CEE_RET);
8648 #endif /* DISABLE_JIT */
8650 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8652 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8660 * mono_marshal_get_struct_to_ptr:
8663 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8664 * The wrapper info for the wrapper is a WrapperInfo structure.
8667 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8669 MonoMethodBuilder *mb;
8670 static MonoMethod *stoptr = NULL;
8674 g_assert (klass != NULL);
8676 mono_marshal_load_type_info (klass);
8678 if (klass->marshal_info->str_to_ptr)
8679 return klass->marshal_info->str_to_ptr;
8682 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8685 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8688 if (klass->blittable) {
8689 mono_mb_emit_byte (mb, CEE_LDARG_1);
8690 mono_mb_emit_byte (mb, CEE_LDARG_0);
8691 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8692 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8693 mono_mb_emit_byte (mb, CEE_PREFIX1);
8694 mono_mb_emit_byte (mb, CEE_CPBLK);
8697 /* allocate local 0 (pointer) src_ptr */
8698 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8699 /* allocate local 1 (pointer) dst_ptr */
8700 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8701 /* allocate local 2 (boolean) delete_old */
8702 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8703 mono_mb_emit_byte (mb, CEE_LDARG_2);
8704 mono_mb_emit_stloc (mb, 2);
8706 /* initialize src_ptr to point to the start of object data */
8707 mono_mb_emit_byte (mb, CEE_LDARG_0);
8708 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8709 mono_mb_emit_stloc (mb, 0);
8711 /* initialize dst_ptr */
8712 mono_mb_emit_byte (mb, CEE_LDARG_1);
8713 mono_mb_emit_stloc (mb, 1);
8715 emit_struct_conv (mb, klass, FALSE);
8718 mono_mb_emit_byte (mb, CEE_RET);
8720 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8721 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8724 mono_marshal_lock ();
8725 if (!klass->marshal_info->str_to_ptr)
8726 klass->marshal_info->str_to_ptr = res;
8728 res = klass->marshal_info->str_to_ptr;
8729 mono_marshal_unlock ();
8734 * mono_marshal_get_ptr_to_struct:
8737 * generates IL code for PtrToStructure (IntPtr src, object structure)
8738 * The wrapper info for the wrapper is a WrapperInfo structure.
8741 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8743 MonoMethodBuilder *mb;
8744 static MonoMethodSignature *ptostr = NULL;
8748 g_assert (klass != NULL);
8750 mono_marshal_load_type_info (klass);
8752 if (klass->marshal_info->ptr_to_str)
8753 return klass->marshal_info->ptr_to_str;
8756 MonoMethodSignature *sig;
8758 /* Create the signature corresponding to
8759 static void PtrToStructure (IntPtr ptr, object structure);
8760 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8761 sig = mono_create_icall_signature ("void ptr object");
8762 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8764 mono_memory_barrier ();
8768 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8771 if (klass->blittable) {
8772 mono_mb_emit_byte (mb, CEE_LDARG_1);
8773 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8774 mono_mb_emit_byte (mb, CEE_LDARG_0);
8775 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8776 mono_mb_emit_byte (mb, CEE_PREFIX1);
8777 mono_mb_emit_byte (mb, CEE_CPBLK);
8780 /* allocate local 0 (pointer) src_ptr */
8781 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8782 /* allocate local 1 (pointer) dst_ptr */
8783 mono_mb_add_local (mb, &klass->this_arg);
8785 /* initialize src_ptr to point to the start of object data */
8786 mono_mb_emit_byte (mb, CEE_LDARG_0);
8787 mono_mb_emit_stloc (mb, 0);
8789 /* initialize dst_ptr */
8790 mono_mb_emit_byte (mb, CEE_LDARG_1);
8791 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8792 mono_mb_emit_stloc (mb, 1);
8794 emit_struct_conv (mb, klass, TRUE);
8797 mono_mb_emit_byte (mb, CEE_RET);
8799 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8800 res = mono_mb_create (mb, ptostr, 0, info);
8803 mono_marshal_lock ();
8804 if (!klass->marshal_info->ptr_to_str)
8805 klass->marshal_info->ptr_to_str = res;
8807 res = klass->marshal_info->ptr_to_str;
8808 mono_marshal_unlock ();
8813 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8814 * This is used to avoid infinite recursion since it is hard to determine where to
8815 * replace a method with its synchronized wrapper, and where not.
8816 * The runtime should execute METHOD instead of the wrapper.
8817 * The wrapper info for the wrapper is a WrapperInfo structure.
8820 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8822 MonoMethodBuilder *mb;
8824 MonoMethodSignature *sig;
8826 MonoGenericContext *ctx = NULL;
8827 MonoGenericContainer *container = NULL;
8829 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8830 ctx = &((MonoMethodInflated*)method)->context;
8831 method = ((MonoMethodInflated*)method)->declaring;
8832 container = mono_method_get_generic_container (method);
8834 container = method->klass->generic_container;
8835 g_assert (container);
8838 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8840 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8841 mono_mb_emit_byte (mb, CEE_RET);
8843 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8845 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8846 info->d.synchronized_inner.method = method;
8847 res = mono_mb_create (mb, sig, 0, info);
8851 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8852 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8858 * generates IL code for the synchronized wrapper: the generated method
8859 * calls METHOD while locking 'this' or the parent type.
8862 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8864 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8865 MonoMethodSignature *sig;
8866 MonoExceptionClause *clause;
8867 MonoMethodBuilder *mb;
8871 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8872 MonoGenericContext *ctx = NULL;
8873 MonoMethod *orig_method = NULL;
8874 MonoGenericContainer *container = NULL;
8878 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8881 /* FIXME: Support generic methods too */
8882 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8883 orig_method = method;
8884 ctx = &((MonoMethodInflated*)method)->context;
8885 method = ((MonoMethodInflated*)method)->declaring;
8886 container = mono_method_get_generic_container (method);
8888 container = method->klass->generic_container;
8889 g_assert (container);
8896 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8897 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8901 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8902 if ((res = mono_marshal_find_in_cache (cache, method)))
8906 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8909 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8911 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8912 info->d.synchronized.method = method;
8915 mb->skip_visibility = 1;
8917 if (!MONO_TYPE_IS_VOID (sig->ret))
8918 ret_local = mono_mb_add_local (mb, sig->ret);
8921 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8922 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8924 /* This will throw the type load exception when the wrapper is compiled */
8925 mono_mb_emit_byte (mb, CEE_LDNULL);
8926 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8927 mono_mb_emit_byte (mb, CEE_POP);
8929 if (!MONO_TYPE_IS_VOID (sig->ret))
8930 mono_mb_emit_ldloc (mb, ret_local);
8931 mono_mb_emit_byte (mb, CEE_RET);
8934 res = mono_mb_create_and_cache_full (cache, method,
8935 mb, sig, sig->param_count + 16, info, NULL);
8943 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8944 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8946 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8947 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8950 mono_marshal_lock ();
8952 if (!enter_method) {
8953 MonoMethodDesc *desc;
8955 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8956 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8957 g_assert (enter_method);
8958 mono_method_desc_free (desc);
8960 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8961 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8962 g_assert (exit_method);
8963 mono_method_desc_free (desc);
8965 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8966 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8967 g_assert (gettypefromhandle_method);
8968 mono_method_desc_free (desc);
8971 mono_marshal_unlock ();
8974 /* Push this or the type object */
8975 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8976 /* We have special handling for this in the JIT */
8977 int index = mono_mb_add_data (mb, method->klass);
8978 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8979 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8980 mono_mb_emit_i4 (mb, index);
8982 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8985 mono_mb_emit_ldarg (mb, 0);
8986 mono_mb_emit_stloc (mb, this_local);
8988 /* Call Monitor::Enter() */
8989 mono_mb_emit_ldloc (mb, this_local);
8990 mono_mb_emit_ldloc_addr (mb, taken_local);
8991 mono_mb_emit_managed_call (mb, enter_method, NULL);
8993 clause->try_offset = mono_mb_get_label (mb);
8995 /* Call the method */
8997 mono_mb_emit_ldarg (mb, 0);
8998 for (i = 0; i < sig->param_count; i++)
8999 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9003 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9004 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9006 mono_mb_emit_managed_call (mb, method, NULL);
9009 if (!MONO_TYPE_IS_VOID (sig->ret))
9010 mono_mb_emit_stloc (mb, ret_local);
9012 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9014 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9015 clause->handler_offset = mono_mb_get_label (mb);
9017 /* Call Monitor::Exit() if needed */
9018 mono_mb_emit_ldloc (mb, taken_local);
9019 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9020 mono_mb_emit_ldloc (mb, this_local);
9021 mono_mb_emit_managed_call (mb, exit_method, NULL);
9022 mono_mb_patch_branch (mb, pos2);
9023 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9025 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9027 mono_mb_patch_branch (mb, pos);
9028 if (!MONO_TYPE_IS_VOID (sig->ret))
9029 mono_mb_emit_ldloc (mb, ret_local);
9030 mono_mb_emit_byte (mb, CEE_RET);
9032 mono_mb_set_clauses (mb, 1, clause);
9037 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9038 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9040 res = mono_mb_create_and_cache_full (cache, method,
9041 mb, sig, sig->param_count + 16, info, NULL);
9050 * the returned method calls 'method' unboxing the this argument
9053 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9055 MonoMethodSignature *sig = mono_method_signature (method);
9057 MonoMethodBuilder *mb;
9062 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9064 if ((res = mono_marshal_find_in_cache (cache, method)))
9067 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9069 g_assert (sig->hasthis);
9072 mono_mb_emit_ldarg (mb, 0);
9073 mono_mb_emit_icon (mb, sizeof (MonoObject));
9074 mono_mb_emit_byte (mb, CEE_ADD);
9075 for (i = 0; i < sig->param_count; ++i)
9076 mono_mb_emit_ldarg (mb, i + 1);
9077 mono_mb_emit_managed_call (mb, method, NULL);
9078 mono_mb_emit_byte (mb, CEE_RET);
9081 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9082 info->d.unbox.method = method;
9084 res = mono_mb_create_and_cache_full (cache, method,
9085 mb, sig, sig->param_count + 16, info, NULL);
9088 /* mono_method_print_code (res); */
9094 STELEMREF_OBJECT, /*no check at all*/
9095 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9096 STELEMREF_CLASS, /*only the klass->parents check*/
9097 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9098 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9099 STELEMREF_KIND_COUNT
9102 static const char *strelemref_wrapper_name[] = {
9103 "object", "sealed_class", "class", "interface", "complex"
9107 is_monomorphic_array (MonoClass *klass)
9109 MonoClass *element_class;
9110 if (klass->rank != 1)
9113 element_class = klass->element_class;
9114 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9118 get_virtual_stelemref_kind (MonoClass *element_class)
9120 if (element_class == mono_defaults.object_class)
9121 return STELEMREF_OBJECT;
9122 if (is_monomorphic_array (element_class))
9123 return STELEMREF_SEALED_CLASS;
9124 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9125 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9126 #ifdef COMPRESSED_INTERFACE_BITMAP
9127 return STELEMREF_COMPLEX;
9129 return STELEMREF_INTERFACE;
9131 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9132 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9133 return STELEMREF_COMPLEX;
9134 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9135 return STELEMREF_SEALED_CLASS;
9136 return STELEMREF_CLASS;
9142 load_array_element_address (MonoMethodBuilder *mb)
9144 mono_mb_emit_ldarg (mb, 0);
9145 mono_mb_emit_ldarg (mb, 1);
9146 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9150 load_array_class (MonoMethodBuilder *mb, int aklass)
9152 mono_mb_emit_ldarg (mb, 0);
9153 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9154 mono_mb_emit_byte (mb, CEE_LDIND_I);
9155 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9156 mono_mb_emit_byte (mb, CEE_LDIND_I);
9157 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9158 mono_mb_emit_byte (mb, CEE_LDIND_I);
9159 mono_mb_emit_stloc (mb, aklass);
9163 load_value_class (MonoMethodBuilder *mb, int vklass)
9165 mono_mb_emit_ldarg (mb, 2);
9166 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9167 mono_mb_emit_byte (mb, CEE_LDIND_I);
9168 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9169 mono_mb_emit_byte (mb, CEE_LDIND_I);
9170 mono_mb_emit_stloc (mb, vklass);
9176 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9178 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9179 printf ("slow vstore of %s\n", name);
9185 * The wrapper info for the wrapper is a WrapperInfo structure.
9188 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9189 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9190 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9191 * - Add a case for arrays of arrays.
9194 get_virtual_stelemref_wrapper (int kind)
9196 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9197 static MonoMethodSignature *signature;
9198 MonoMethodBuilder *mb;
9201 const char *param_names [16];
9203 int aklass, vklass, vtable, uiid;
9204 int array_slot_addr;
9207 if (cached_methods [kind])
9208 return cached_methods [kind];
9210 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9211 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9215 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9217 /* void this::stelemref (size_t idx, void* value) */
9218 sig->ret = &mono_defaults.void_class->byval_arg;
9219 sig->hasthis = TRUE;
9220 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9221 sig->params [1] = &mono_defaults.object_class->byval_arg;
9226 param_names [0] = "index";
9227 param_names [1] = "value";
9228 mono_mb_set_param_names (mb, param_names);
9230 /*For now simply call plain old stelemref*/
9232 case STELEMREF_OBJECT:
9233 /* ldelema (implicit bound check) */
9234 load_array_element_address (mb);
9236 mono_mb_emit_ldarg (mb, 2);
9237 mono_mb_emit_byte (mb, CEE_STIND_REF);
9238 mono_mb_emit_byte (mb, CEE_RET);
9241 case STELEMREF_COMPLEX:
9243 <ldelema (bound check)>
9246 if (!mono_object_isinst (value, aklass))
9250 *array_slot_addr = value;
9253 throw new ArrayTypeMismatchException ();
9256 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9257 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9261 /*Use this to debug/record stores that are going thru the slow path*/
9262 MonoMethodSignature *csig;
9263 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9264 csig->ret = &mono_defaults.void_class->byval_arg;
9265 csig->params [0] = &mono_defaults.object_class->byval_arg;
9266 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9267 csig->params [2] = &mono_defaults.object_class->byval_arg;
9268 mono_mb_emit_ldarg (mb, 0);
9269 mono_mb_emit_ldarg (mb, 1);
9270 mono_mb_emit_ldarg (mb, 2);
9271 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9275 /* ldelema (implicit bound check) */
9276 load_array_element_address (mb);
9277 mono_mb_emit_stloc (mb, array_slot_addr);
9279 /* if (!value) goto do_store */
9280 mono_mb_emit_ldarg (mb, 2);
9281 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9283 /* aklass = array->vtable->klass->element_class */
9284 load_array_class (mb, aklass);
9286 /*if (mono_object_isinst (value, aklass)) */
9287 mono_mb_emit_ldarg (mb, 2);
9288 mono_mb_emit_ldloc (mb, aklass);
9289 mono_mb_emit_icall (mb, mono_object_isinst);
9290 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9293 mono_mb_patch_branch (mb, b1);
9294 mono_mb_emit_ldloc (mb, array_slot_addr);
9295 mono_mb_emit_ldarg (mb, 2);
9296 mono_mb_emit_byte (mb, CEE_STIND_REF);
9297 mono_mb_emit_byte (mb, CEE_RET);
9300 mono_mb_patch_branch (mb, b2);
9302 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9305 case STELEMREF_SEALED_CLASS:
9307 <ldelema (bound check)>
9311 aklass = array->vtable->klass->element_class;
9312 vklass = value->vtable->klass;
9314 if (vklass != aklass)
9318 *array_slot_addr = value;
9321 throw new ArrayTypeMismatchException ();
9323 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9324 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9325 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9328 /* ldelema (implicit bound check) */
9329 load_array_element_address (mb);
9330 mono_mb_emit_stloc (mb, array_slot_addr);
9332 /* if (!value) goto do_store */
9333 mono_mb_emit_ldarg (mb, 2);
9334 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9336 /* aklass = array->vtable->klass->element_class */
9337 load_array_class (mb, aklass);
9339 /* vklass = value->vtable->klass */
9340 load_value_class (mb, vklass);
9342 /*if (vklass != aklass) goto do_exception; */
9343 mono_mb_emit_ldloc (mb, aklass);
9344 mono_mb_emit_ldloc (mb, vklass);
9345 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9348 mono_mb_patch_branch (mb, b1);
9349 mono_mb_emit_ldloc (mb, array_slot_addr);
9350 mono_mb_emit_ldarg (mb, 2);
9351 mono_mb_emit_byte (mb, CEE_STIND_REF);
9352 mono_mb_emit_byte (mb, CEE_RET);
9355 mono_mb_patch_branch (mb, b2);
9356 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9359 case STELEMREF_CLASS:
9362 <ldelema (bound check)>
9366 aklass = array->vtable->klass->element_class;
9367 vklass = value->vtable->klass;
9369 if (vklass->idepth < aklass->idepth)
9372 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9376 *array_slot_addr = value;
9380 throw new ArrayTypeMismatchException ();
9382 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9383 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9384 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9386 /* ldelema (implicit bound check) */
9387 load_array_element_address (mb);
9388 mono_mb_emit_stloc (mb, array_slot_addr);
9390 /* if (!value) goto do_store */
9391 mono_mb_emit_ldarg (mb, 2);
9392 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9394 /* aklass = array->vtable->klass->element_class */
9395 load_array_class (mb, aklass);
9397 /* vklass = value->vtable->klass */
9398 load_value_class (mb, vklass);
9400 /*if (mono_object_isinst (value, aklass)) */
9401 mono_mb_emit_ldarg (mb, 2);
9402 mono_mb_emit_ldloc (mb, aklass);
9403 mono_mb_emit_icall (mb, mono_object_isinst);
9404 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9406 /* if (vklass->idepth < aklass->idepth) goto failue */
9407 mono_mb_emit_ldloc (mb, vklass);
9408 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9409 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9411 mono_mb_emit_ldloc (mb, aklass);
9412 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9413 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9415 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9417 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9418 mono_mb_emit_ldloc (mb, vklass);
9419 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9420 mono_mb_emit_byte (mb, CEE_LDIND_I);
9422 mono_mb_emit_ldloc (mb, aklass);
9423 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9424 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9425 mono_mb_emit_icon (mb, 1);
9426 mono_mb_emit_byte (mb, CEE_SUB);
9427 mono_mb_emit_icon (mb, sizeof (void*));
9428 mono_mb_emit_byte (mb, CEE_MUL);
9429 mono_mb_emit_byte (mb, CEE_ADD);
9430 mono_mb_emit_byte (mb, CEE_LDIND_I);
9432 mono_mb_emit_ldloc (mb, aklass);
9433 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9436 mono_mb_patch_branch (mb, b1);
9437 mono_mb_emit_ldloc (mb, array_slot_addr);
9438 mono_mb_emit_ldarg (mb, 2);
9439 mono_mb_emit_byte (mb, CEE_STIND_REF);
9440 mono_mb_emit_byte (mb, CEE_RET);
9443 mono_mb_patch_branch (mb, b2);
9444 mono_mb_patch_branch (mb, b3);
9446 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9449 case STELEMREF_INTERFACE:
9456 klass = array->obj.vtable->klass->element_class;
9458 uiid = klass->interface_id;
9459 if (uiid > vt->max_interface_id)
9461 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9464 mono_array_setref (array, index, value);
9467 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9469 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9470 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9471 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9472 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9474 /* ldelema (implicit bound check) */
9475 load_array_element_address (mb);
9476 mono_mb_emit_stloc (mb, array_slot_addr);
9478 /* if (!value) goto do_store */
9479 mono_mb_emit_ldarg (mb, 2);
9480 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9482 /* klass = array->vtable->klass->element_class */
9483 load_array_class (mb, aklass);
9485 /* vt = value->vtable */
9486 mono_mb_emit_ldarg (mb, 2);
9487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9488 mono_mb_emit_byte (mb, CEE_LDIND_I);
9489 mono_mb_emit_stloc (mb, vtable);
9491 /* uiid = klass->interface_id; */
9492 mono_mb_emit_ldloc (mb, aklass);
9493 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9494 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9495 mono_mb_emit_stloc (mb, uiid);
9497 /*if (uiid > vt->max_interface_id)*/
9498 mono_mb_emit_ldloc (mb, uiid);
9499 mono_mb_emit_ldloc (mb, vtable);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9501 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9502 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9504 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9506 /*vt->interface_bitmap*/
9507 mono_mb_emit_ldloc (mb, vtable);
9508 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9509 mono_mb_emit_byte (mb, CEE_LDIND_I);
9512 mono_mb_emit_ldloc (mb, uiid);
9513 mono_mb_emit_icon (mb, 3);
9514 mono_mb_emit_byte (mb, CEE_SHR_UN);
9516 /*vt->interface_bitmap [(uiid) >> 3]*/
9517 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9518 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9520 /*(1 << ((uiid)&7)))*/
9521 mono_mb_emit_icon (mb, 1);
9522 mono_mb_emit_ldloc (mb, uiid);
9523 mono_mb_emit_icon (mb, 7);
9524 mono_mb_emit_byte (mb, CEE_AND);
9525 mono_mb_emit_byte (mb, CEE_SHL);
9527 /*bitwise and the whole thing*/
9528 mono_mb_emit_byte (mb, CEE_AND);
9529 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9532 mono_mb_patch_branch (mb, b1);
9533 mono_mb_emit_ldloc (mb, array_slot_addr);
9534 mono_mb_emit_ldarg (mb, 2);
9535 mono_mb_emit_byte (mb, CEE_STIND_REF);
9536 mono_mb_emit_byte (mb, CEE_RET);
9539 mono_mb_patch_branch (mb, b2);
9540 mono_mb_patch_branch (mb, b3);
9541 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9545 mono_mb_emit_ldarg (mb, 0);
9546 mono_mb_emit_ldarg (mb, 1);
9547 mono_mb_emit_ldarg (mb, 2);
9548 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9549 mono_mb_emit_byte (mb, CEE_RET);
9552 #endif /* DISABLE_JIT */
9553 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9554 info->d.virtual_stelemref.kind = kind;
9555 res = mono_mb_create (mb, signature, 4, info);
9556 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9558 mono_marshal_lock ();
9559 if (!cached_methods [kind]) {
9560 cached_methods [kind] = res;
9561 mono_marshal_unlock ();
9563 mono_marshal_unlock ();
9564 mono_free_method (res);
9568 return cached_methods [kind];
9572 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9576 g_assert (array_class->rank == 1);
9577 kind = get_virtual_stelemref_kind (array_class->element_class);
9579 return get_virtual_stelemref_wrapper (kind);
9583 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9588 *nwrappers = STELEMREF_KIND_COUNT;
9589 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9590 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9591 res [i] = get_virtual_stelemref_wrapper (i);
9596 * The wrapper info for the wrapper is a WrapperInfo structure.
9599 mono_marshal_get_stelemref (void)
9601 static MonoMethod* ret = NULL;
9602 MonoMethodSignature *sig;
9603 MonoMethodBuilder *mb;
9606 guint32 b1, b2, b3, b4;
9609 int array_slot_addr;
9614 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9617 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9619 /* void stelemref (void* array, int idx, void* value) */
9620 sig->ret = &mono_defaults.void_class->byval_arg;
9621 sig->params [0] = &mono_defaults.object_class->byval_arg;
9622 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9623 sig->params [2] = &mono_defaults.object_class->byval_arg;
9626 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9627 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9628 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9632 <ldelema (bound check)>
9636 aklass = array->vtable->klass->element_class;
9637 vklass = value->vtable->klass;
9639 if (vklass->idepth < aklass->idepth)
9642 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9646 *array_slot_addr = value;
9650 if (mono_object_isinst (value, aklass))
9653 throw new ArrayTypeMismatchException ();
9656 /* ldelema (implicit bound check) */
9657 mono_mb_emit_ldarg (mb, 0);
9658 mono_mb_emit_ldarg (mb, 1);
9659 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9660 mono_mb_emit_stloc (mb, array_slot_addr);
9662 /* if (!value) goto do_store */
9663 mono_mb_emit_ldarg (mb, 2);
9664 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9666 /* aklass = array->vtable->klass->element_class */
9667 mono_mb_emit_ldarg (mb, 0);
9668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9669 mono_mb_emit_byte (mb, CEE_LDIND_I);
9670 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9671 mono_mb_emit_byte (mb, CEE_LDIND_I);
9672 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9673 mono_mb_emit_byte (mb, CEE_LDIND_I);
9674 mono_mb_emit_stloc (mb, aklass);
9676 /* vklass = value->vtable->klass */
9677 mono_mb_emit_ldarg (mb, 2);
9678 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9679 mono_mb_emit_byte (mb, CEE_LDIND_I);
9680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9681 mono_mb_emit_byte (mb, CEE_LDIND_I);
9682 mono_mb_emit_stloc (mb, vklass);
9684 /* if (vklass->idepth < aklass->idepth) goto failue */
9685 mono_mb_emit_ldloc (mb, vklass);
9686 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9687 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9689 mono_mb_emit_ldloc (mb, aklass);
9690 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9691 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9693 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9695 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9696 mono_mb_emit_ldloc (mb, vklass);
9697 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9698 mono_mb_emit_byte (mb, CEE_LDIND_I);
9700 mono_mb_emit_ldloc (mb, aklass);
9701 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9702 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9703 mono_mb_emit_icon (mb, 1);
9704 mono_mb_emit_byte (mb, CEE_SUB);
9705 mono_mb_emit_icon (mb, sizeof (void*));
9706 mono_mb_emit_byte (mb, CEE_MUL);
9707 mono_mb_emit_byte (mb, CEE_ADD);
9708 mono_mb_emit_byte (mb, CEE_LDIND_I);
9710 mono_mb_emit_ldloc (mb, aklass);
9712 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9714 copy_pos = mono_mb_get_label (mb);
9716 mono_mb_patch_branch (mb, b1);
9717 mono_mb_emit_ldloc (mb, array_slot_addr);
9718 mono_mb_emit_ldarg (mb, 2);
9719 mono_mb_emit_byte (mb, CEE_STIND_REF);
9721 mono_mb_emit_byte (mb, CEE_RET);
9724 mono_mb_patch_branch (mb, b2);
9725 mono_mb_patch_branch (mb, b3);
9727 mono_mb_emit_ldarg (mb, 2);
9728 mono_mb_emit_ldloc (mb, aklass);
9729 mono_mb_emit_icall (mb, mono_object_isinst);
9731 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9732 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9733 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9735 mono_mb_emit_byte (mb, CEE_RET);
9737 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9738 ret = mono_mb_create (mb, sig, 4, info);
9745 * mono_marshal_get_gsharedvt_in_wrapper:
9747 * This wrapper handles calls from normal code to gsharedvt code.
9749 * The wrapper info for the wrapper is a WrapperInfo structure.
9752 mono_marshal_get_gsharedvt_in_wrapper (void)
9754 static MonoMethod* ret = NULL;
9755 MonoMethodSignature *sig;
9756 MonoMethodBuilder *mb;
9762 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9764 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9765 sig->ret = &mono_defaults.void_class->byval_arg;
9769 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9771 mono_mb_emit_byte (mb, CEE_RET);
9773 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9774 ret = mono_mb_create (mb, sig, 4, info);
9781 * mono_marshal_get_gsharedvt_out_wrapper:
9783 * This wrapper handles calls from gsharedvt code to normal code.
9785 * The wrapper info for the wrapper is a WrapperInfo structure.
9788 mono_marshal_get_gsharedvt_out_wrapper (void)
9790 static MonoMethod* ret = NULL;
9791 MonoMethodSignature *sig;
9792 MonoMethodBuilder *mb;
9798 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9800 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9801 sig->ret = &mono_defaults.void_class->byval_arg;
9805 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9807 mono_mb_emit_byte (mb, CEE_RET);
9809 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9810 ret = mono_mb_create (mb, sig, 4, info);
9822 /* LOCKING: vars accessed under the marshal lock */
9823 static ArrayElemAddr *elem_addr_cache = NULL;
9824 static int elem_addr_cache_size = 0;
9825 static int elem_addr_cache_next = 0;
9828 * mono_marshal_get_array_address:
9829 * @rank: rank of the array type
9830 * @elem_size: size in bytes of an element of an array.
9832 * Returns a MonoMethod that implements the code to get the address
9833 * of an element in a multi-dimenasional array of @rank dimensions.
9834 * The returned method takes an array as the first argument and then
9835 * @rank indexes for the @rank dimensions.
9836 * If ELEM_SIZE is 0, read the array size from the array object.
9839 mono_marshal_get_array_address (int rank, int elem_size)
9842 MonoMethodBuilder *mb;
9843 MonoMethodSignature *sig;
9846 int i, bounds, ind, realidx;
9847 int branch_pos, *branch_positions;
9851 mono_marshal_lock ();
9852 for (i = 0; i < elem_addr_cache_next; ++i) {
9853 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9854 ret = elem_addr_cache [i].method;
9858 mono_marshal_unlock ();
9862 branch_positions = g_new0 (int, rank);
9864 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9866 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9867 sig->ret = &mono_defaults.int_class->byval_arg;
9868 sig->params [0] = &mono_defaults.object_class->byval_arg;
9869 for (i = 0; i < rank; ++i) {
9870 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9873 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9874 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9878 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9879 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9880 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9882 /* bounds = array->bounds; */
9883 mono_mb_emit_ldarg (mb, 0);
9884 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9885 mono_mb_emit_byte (mb, CEE_LDIND_I);
9886 mono_mb_emit_stloc (mb, bounds);
9888 /* ind is the overall element index, realidx is the partial index in a single dimension */
9889 /* ind = idx0 - bounds [0].lower_bound */
9890 mono_mb_emit_ldarg (mb, 1);
9891 mono_mb_emit_ldloc (mb, bounds);
9892 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9893 mono_mb_emit_byte (mb, CEE_ADD);
9894 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9895 mono_mb_emit_byte (mb, CEE_SUB);
9896 mono_mb_emit_stloc (mb, ind);
9897 /* if (ind >= bounds [0].length) goto exeception; */
9898 mono_mb_emit_ldloc (mb, ind);
9899 mono_mb_emit_ldloc (mb, bounds);
9900 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9901 mono_mb_emit_byte (mb, CEE_ADD);
9902 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9903 /* note that we use unsigned comparison */
9904 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9906 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9907 * We could also decide to ignore the passed elem_size and get it
9908 * from the array object, to reduce the number of methods we generate:
9909 * the additional cost is 3 memory loads and a non-immediate mul.
9911 for (i = 1; i < rank; ++i) {
9912 /* realidx = idxi - bounds [i].lower_bound */
9913 mono_mb_emit_ldarg (mb, 1 + i);
9914 mono_mb_emit_ldloc (mb, bounds);
9915 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9916 mono_mb_emit_byte (mb, CEE_ADD);
9917 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9918 mono_mb_emit_byte (mb, CEE_SUB);
9919 mono_mb_emit_stloc (mb, realidx);
9920 /* if (realidx >= bounds [i].length) goto exeception; */
9921 mono_mb_emit_ldloc (mb, realidx);
9922 mono_mb_emit_ldloc (mb, bounds);
9923 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9924 mono_mb_emit_byte (mb, CEE_ADD);
9925 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9926 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9927 /* ind = ind * bounds [i].length + realidx */
9928 mono_mb_emit_ldloc (mb, ind);
9929 mono_mb_emit_ldloc (mb, bounds);
9930 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9931 mono_mb_emit_byte (mb, CEE_ADD);
9932 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9933 mono_mb_emit_byte (mb, CEE_MUL);
9934 mono_mb_emit_ldloc (mb, realidx);
9935 mono_mb_emit_byte (mb, CEE_ADD);
9936 mono_mb_emit_stloc (mb, ind);
9939 /* return array->vector + ind * element_size */
9940 mono_mb_emit_ldarg (mb, 0);
9941 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9942 mono_mb_emit_ldloc (mb, ind);
9944 mono_mb_emit_icon (mb, elem_size);
9946 /* Load arr->vtable->klass->sizes.element_class */
9947 mono_mb_emit_ldarg (mb, 0);
9948 mono_mb_emit_byte (mb, CEE_CONV_I);
9949 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9950 mono_mb_emit_byte (mb, CEE_ADD);
9951 mono_mb_emit_byte (mb, CEE_LDIND_I);
9952 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9953 mono_mb_emit_byte (mb, CEE_ADD);
9954 mono_mb_emit_byte (mb, CEE_LDIND_I);
9955 /* sizes is an union, so this reads sizes.element_size */
9956 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9957 mono_mb_emit_byte (mb, CEE_ADD);
9958 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9960 mono_mb_emit_byte (mb, CEE_MUL);
9961 mono_mb_emit_byte (mb, CEE_ADD);
9962 mono_mb_emit_byte (mb, CEE_RET);
9964 /* patch the branches to get here and throw */
9965 for (i = 1; i < rank; ++i) {
9966 mono_mb_patch_branch (mb, branch_positions [i]);
9968 mono_mb_patch_branch (mb, branch_pos);
9969 /* throw exception */
9970 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9972 g_free (branch_positions);
9973 #endif /* DISABLE_JIT */
9975 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9976 info->d.element_addr.rank = rank;
9977 info->d.element_addr.elem_size = elem_size;
9978 ret = mono_mb_create (mb, sig, 4, info);
9981 /* cache the result */
9983 mono_marshal_lock ();
9984 for (i = 0; i < elem_addr_cache_next; ++i) {
9985 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9986 /* FIXME: free ret */
9987 ret = elem_addr_cache [i].method;
9993 if (elem_addr_cache_next >= elem_addr_cache_size) {
9994 int new_size = elem_addr_cache_size + 4;
9995 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9996 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9997 g_free (elem_addr_cache);
9998 elem_addr_cache = new_array;
9999 elem_addr_cache_size = new_size;
10001 elem_addr_cache [elem_addr_cache_next].rank = rank;
10002 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10003 elem_addr_cache [elem_addr_cache_next].method = ret;
10004 elem_addr_cache_next ++;
10006 mono_marshal_unlock ();
10011 * mono_marshal_get_array_accessor_wrapper:
10013 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10016 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10018 MonoMethodSignature *sig;
10019 MonoMethodBuilder *mb;
10023 MonoGenericContext *ctx = NULL;
10024 MonoMethod *orig_method = NULL;
10025 MonoGenericContainer *container = NULL;
10029 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10030 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10031 * FIXME: Use generic methods.
10038 g_assert_not_reached ();
10040 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10041 if ((res = mono_marshal_find_in_cache (cache, method)))
10045 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10048 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10050 #ifndef DISABLE_JIT
10051 /* Call the method */
10053 mono_mb_emit_ldarg (mb, 0);
10054 for (i = 0; i < sig->param_count; i++)
10055 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10059 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10060 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10062 mono_mb_emit_managed_call (mb, method, NULL);
10064 mono_mb_emit_byte (mb, CEE_RET);
10067 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10068 info->d.array_accessor.method = method;
10072 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10073 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10075 res = mono_mb_create_and_cache_full (cache, method,
10076 mb, sig, sig->param_count + 16,
10085 mono_marshal_alloc (gulong size, MonoError *error)
10089 mono_error_init (error);
10092 res = CoTaskMemAlloc (size);
10094 res = g_try_malloc ((gulong)size);
10096 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10102 ves_icall_marshal_alloc (gulong size)
10105 void *ret = mono_marshal_alloc (size, &error);
10106 mono_error_raise_exception (&error);
10112 mono_marshal_free (gpointer ptr)
10115 CoTaskMemFree (ptr);
10122 mono_marshal_free_array (gpointer *ptr, int size)
10129 for (i = 0; i < size; i++)
10135 mono_marshal_string_to_utf16 (MonoString *s)
10137 return s ? mono_string_chars (s) : NULL;
10141 mono_marshal_string_to_utf16_copy (MonoString *s)
10147 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10148 mono_error_raise_exception (&error); /* FIXME don't raise here */
10149 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10150 res [mono_string_length (s)] = 0;
10156 * mono_marshal_set_last_error:
10158 * This function is invoked to set the last error value from a P/Invoke call
10159 * which has SetLastError set.
10162 mono_marshal_set_last_error (void)
10165 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10167 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10172 mono_marshal_set_last_error_windows (int error)
10175 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10180 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10181 gpointer dest, gint32 length)
10186 MONO_CHECK_ARG_NULL (src,);
10187 MONO_CHECK_ARG_NULL (dest,);
10189 if (src->obj.vtable->klass->rank != 1) {
10190 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10193 if (start_index < 0) {
10194 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10198 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10201 if (start_index + length > mono_array_length (src)) {
10202 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10206 element_size = mono_array_element_size (src->obj.vtable->klass);
10208 /* no references should be involved */
10209 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10211 memcpy (dest, source_addr, length * element_size);
10215 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10216 MonoArray *dest, gint32 length)
10221 MONO_CHECK_ARG_NULL (src,);
10222 MONO_CHECK_ARG_NULL (dest,);
10224 if (dest->obj.vtable->klass->rank != 1) {
10225 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10228 if (start_index < 0) {
10229 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10233 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10236 if (start_index + length > mono_array_length (dest)) {
10237 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10240 element_size = mono_array_element_size (dest->obj.vtable->klass);
10242 /* no references should be involved */
10243 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10245 memcpy (dest_addr, src, length * element_size);
10249 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10254 return mono_string_new (mono_domain_get (), ptr);
10258 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10261 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10264 return mono_string_new_len (mono_domain_get (), ptr, len);
10269 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10272 MonoString *res = NULL;
10273 MonoDomain *domain = mono_domain_get ();
10283 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10284 mono_error_raise_exception (&error);
10289 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10292 MonoString *res = NULL;
10293 MonoDomain *domain = mono_domain_get ();
10295 mono_error_init (&error);
10299 mono_error_set_argument_null (&error, "ptr", "");
10301 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10304 if (!mono_error_ok (&error))
10305 mono_error_set_pending_exception (&error);
10310 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10312 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10316 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10322 MONO_CHECK_ARG_NULL (rtype, 0);
10324 type = rtype->type;
10325 klass = mono_class_from_mono_type (type);
10326 if (!mono_class_init (klass)) {
10327 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10331 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10333 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10334 return sizeof (gpointer);
10335 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10337 MonoException *exc;
10339 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10340 exc = mono_get_exception_argument ("t", msg);
10342 mono_set_pending_exception (exc);
10346 return mono_class_native_size (klass, NULL);
10350 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10353 MonoMethod *method;
10356 MONO_CHECK_ARG_NULL (obj,);
10357 MONO_CHECK_ARG_NULL (dst,);
10359 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10363 pa [2] = &delete_old;
10365 mono_runtime_invoke_checked (method, NULL, pa, &error);
10366 mono_error_raise_exception (&error);
10370 ptr_to_structure (gpointer src, MonoObject *dst)
10373 MonoMethod *method;
10376 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10381 mono_runtime_invoke_checked (method, NULL, pa, &error);
10382 mono_error_raise_exception (&error); /* FIXME don't raise here */
10386 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10390 MONO_CHECK_ARG_NULL (src,);
10391 MONO_CHECK_ARG_NULL (dst,);
10393 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10395 if (t->type == MONO_TYPE_VALUETYPE) {
10396 MonoException *exc;
10399 tmp = g_strdup_printf ("Destination is a boxed value type.");
10400 exc = mono_get_exception_argument ("dst", tmp);
10403 mono_set_pending_exception (exc);
10407 ptr_to_structure (src, dst);
10411 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10415 MonoDomain *domain = mono_domain_get ();
10420 MONO_CHECK_ARG_NULL (type, NULL);
10422 klass = mono_class_from_mono_type (type->type);
10423 if (!mono_class_init (klass)) {
10424 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10428 res = mono_object_new_checked (domain, klass, &error);
10429 mono_error_raise_exception (&error);
10431 ptr_to_structure (src, res);
10437 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10439 MonoMarshalType *info;
10442 int match_index = -1;
10444 MONO_CHECK_ARG_NULL (type, 0);
10445 MONO_CHECK_ARG_NULL (field_name, 0);
10447 fname = mono_string_to_utf8 (field_name);
10448 klass = mono_class_from_mono_type (type->type);
10449 if (!mono_class_init (klass)) {
10450 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10454 while (klass && match_index == -1) {
10455 MonoClassField* field;
10457 gpointer iter = NULL;
10458 while ((field = mono_class_get_fields (klass, &iter))) {
10459 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10461 if (!strcmp (fname, mono_field_get_name (field))) {
10468 if (match_index == -1)
10469 klass = klass->parent;
10474 if(match_index == -1) {
10475 MonoException* exc;
10478 /* Get back original class instance */
10479 klass = mono_class_from_mono_type (type->type);
10481 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10482 exc = mono_get_exception_argument ("fieldName", tmp);
10485 mono_set_pending_exception ((MonoException*)exc);
10489 info = mono_marshal_load_type_info (klass);
10490 return info->fields [match_index].offset;
10494 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10499 tres = mono_string_to_utf8 (string);
10503 len = strlen (tres) + 1;
10504 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10505 memcpy (ret, tres, len);
10510 return mono_string_to_utf8 (string);
10515 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10517 if (string == NULL)
10520 #ifdef TARGET_WIN32
10521 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10522 ((mono_string_length (string) + 1) * 2);
10524 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10526 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10527 res [mono_string_length (string)] = 0;
10533 mono_struct_delete_old (MonoClass *klass, char *ptr)
10535 MonoMarshalType *info;
10538 info = mono_marshal_load_type_info (klass);
10540 for (i = 0; i < info->num_fields; i++) {
10541 MonoMarshalConv conv;
10542 MonoType *ftype = info->fields [i].field->type;
10545 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10548 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10549 klass->unicode, &conv);
10551 cpos = ptr + info->fields [i].offset;
10554 case MONO_MARSHAL_CONV_NONE:
10555 if (MONO_TYPE_ISSTRUCT (ftype)) {
10556 mono_struct_delete_old (ftype->data.klass, cpos);
10560 case MONO_MARSHAL_CONV_STR_LPWSTR:
10561 /* We assume this field points inside a MonoString */
10563 case MONO_MARSHAL_CONV_STR_LPTSTR:
10564 #ifdef TARGET_WIN32
10565 /* We assume this field points inside a MonoString
10569 case MONO_MARSHAL_CONV_STR_LPSTR:
10570 case MONO_MARSHAL_CONV_STR_BSTR:
10571 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10572 case MONO_MARSHAL_CONV_STR_TBSTR:
10573 mono_marshal_free (*(gpointer *)cpos);
10583 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10587 MONO_CHECK_ARG_NULL (src,);
10588 MONO_CHECK_ARG_NULL (type,);
10590 klass = mono_class_from_mono_type (type->type);
10591 if (!mono_class_init (klass)) {
10592 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10596 mono_struct_delete_old (klass, (char *)src);
10600 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10603 size_t s = (size_t)size;
10606 /* This returns a valid pointer for size 0 on MS.NET */
10610 res = GlobalAlloc (GMEM_FIXED, s);
10612 res = g_try_malloc (s);
10615 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10621 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10624 size_t s = (size_t)size;
10627 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10632 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10634 res = g_try_realloc (ptr, s);
10637 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10643 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10653 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10658 res = CoTaskMemAlloc (size);
10660 if ((gulong)size == 0)
10661 /* This returns a valid pointer for size 0 on MS.NET */
10664 res = g_try_malloc ((gulong)size);
10667 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10672 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10675 CoTaskMemFree (ptr);
10682 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10687 res = CoTaskMemRealloc (ptr, size);
10689 res = g_try_realloc (ptr, (gulong)size);
10692 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10697 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10699 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10703 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10705 MonoClass *klass = mono_type_get_class (type->type);
10706 if (!mono_class_init (klass)) {
10707 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10711 return mono_ftnptr_to_delegate (klass, ftn);
10715 * mono_marshal_is_loading_type_info:
10717 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10721 mono_marshal_is_loading_type_info (MonoClass *klass)
10723 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10725 return g_slist_find (loads_list, klass) != NULL;
10729 * mono_marshal_load_type_info:
10731 * Initialize klass->marshal_info using information from metadata. This function can
10732 * recursively call itself, and the caller is responsible to avoid that by calling
10733 * mono_marshal_is_loading_type_info () beforehand.
10735 * LOCKING: Acquires the loader lock.
10738 mono_marshal_load_type_info (MonoClass* klass)
10741 guint32 native_size = 0, min_align = 1, packing;
10742 MonoMarshalType *info;
10743 MonoClassField* field;
10746 GSList *loads_list;
10748 g_assert (klass != NULL);
10750 if (klass->marshal_info)
10751 return klass->marshal_info;
10753 if (!klass->inited)
10754 mono_class_init (klass);
10756 if (klass->marshal_info)
10757 return klass->marshal_info;
10760 * This function can recursively call itself, so we keep the list of classes which are
10761 * under initialization in a TLS list.
10763 g_assert (!mono_marshal_is_loading_type_info (klass));
10764 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10765 loads_list = g_slist_prepend (loads_list, klass);
10766 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10769 while ((field = mono_class_get_fields (klass, &iter))) {
10770 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10772 if (mono_field_is_deleted (field))
10777 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10779 /* The mempool is protected by the loader lock */
10780 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10781 info->num_fields = count;
10783 /* Try to find a size for this type in metadata */
10784 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10786 if (klass->parent) {
10787 int parent_size = mono_class_native_size (klass->parent, NULL);
10789 /* Add parent size to real size */
10790 native_size += parent_size;
10791 info->native_size = parent_size;
10794 packing = klass->packing_size ? klass->packing_size : 8;
10797 while ((field = mono_class_get_fields (klass, &iter))) {
10801 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10804 if (mono_field_is_deleted (field))
10806 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10807 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10808 NULL, NULL, &info->fields [j].mspec);
10810 info->fields [j].field = field;
10812 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10813 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10814 /* This field is a hack inserted by MCS to empty structures */
10819 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10820 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10821 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10822 &align, TRUE, klass->unicode);
10823 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10824 min_align = MAX (align, min_align);
10825 info->fields [j].offset = info->native_size;
10826 info->fields [j].offset += align - 1;
10827 info->fields [j].offset &= ~(align - 1);
10828 info->native_size = info->fields [j].offset + size;
10830 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10831 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10832 &align, TRUE, klass->unicode);
10833 min_align = MAX (align, min_align);
10834 info->fields [j].offset = field->offset - sizeof (MonoObject);
10835 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10841 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10842 info->native_size = MAX (native_size, info->native_size);
10844 * If the provided Size is equal or larger than the calculated size, and there
10845 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10847 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10848 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10851 min_align = MIN (min_align, packing);
10855 if (info->native_size & (min_align - 1)) {
10856 info->native_size += min_align - 1;
10857 info->native_size &= ~(min_align - 1);
10860 info->min_align = min_align;
10862 /* Update the class's blittable info, if the layouts don't match */
10863 if (info->native_size != mono_class_value_size (klass, NULL))
10864 klass->blittable = FALSE;
10866 /* If this is an array type, ensure that we have element info */
10867 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10868 mono_marshal_load_type_info (klass->element_class);
10871 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10872 loads_list = g_slist_remove (loads_list, klass);
10873 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10875 mono_marshal_lock ();
10876 if (!klass->marshal_info) {
10877 /*We do double-checking locking on marshal_info */
10878 mono_memory_barrier ();
10879 klass->marshal_info = info;
10881 mono_marshal_unlock ();
10883 return klass->marshal_info;
10887 * mono_class_native_size:
10890 * Returns: the native size of an object instance (when marshaled
10891 * to unmanaged code)
10894 mono_class_native_size (MonoClass *klass, guint32 *align)
10896 if (!klass->marshal_info) {
10897 if (mono_marshal_is_loading_type_info (klass)) {
10902 mono_marshal_load_type_info (klass);
10907 *align = klass->marshal_info->min_align;
10909 return klass->marshal_info->native_size;
10913 * mono_type_native_stack_size:
10914 * @t: the type to return the size it uses on the stack
10916 * Returns: the number of bytes required to hold an instance of this
10917 * type on the native stack
10920 mono_type_native_stack_size (MonoType *t, guint32 *align)
10924 g_assert (t != NULL);
10930 *align = sizeof (gpointer);
10931 return sizeof (gpointer);
10935 case MONO_TYPE_BOOLEAN:
10936 case MONO_TYPE_CHAR:
10947 case MONO_TYPE_STRING:
10948 case MONO_TYPE_OBJECT:
10949 case MONO_TYPE_CLASS:
10950 case MONO_TYPE_SZARRAY:
10951 case MONO_TYPE_PTR:
10952 case MONO_TYPE_FNPTR:
10953 case MONO_TYPE_ARRAY:
10954 *align = sizeof (gpointer);
10955 return sizeof (gpointer);
10960 *align = MONO_ABI_ALIGNOF (double);
10964 *align = MONO_ABI_ALIGNOF (gint64);
10966 case MONO_TYPE_GENERICINST:
10967 if (!mono_type_generic_inst_is_valuetype (t)) {
10968 *align = sizeof (gpointer);
10969 return sizeof (gpointer);
10972 case MONO_TYPE_TYPEDBYREF:
10973 case MONO_TYPE_VALUETYPE: {
10975 MonoClass *klass = mono_class_from_mono_type (t);
10977 if (klass->enumtype)
10978 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10980 size = mono_class_native_size (klass, align);
10981 *align = *align + 3;
10991 g_error ("type 0x%02x unknown", t->type);
10997 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10998 gboolean as_field, gboolean unicode)
11000 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11003 switch (native_type) {
11004 case MONO_NATIVE_BOOLEAN:
11007 case MONO_NATIVE_I1:
11008 case MONO_NATIVE_U1:
11011 case MONO_NATIVE_I2:
11012 case MONO_NATIVE_U2:
11013 case MONO_NATIVE_VARIANTBOOL:
11016 case MONO_NATIVE_I4:
11017 case MONO_NATIVE_U4:
11018 case MONO_NATIVE_ERROR:
11021 case MONO_NATIVE_I8:
11022 case MONO_NATIVE_U8:
11023 *align = MONO_ABI_ALIGNOF (gint64);
11025 case MONO_NATIVE_R4:
11028 case MONO_NATIVE_R8:
11029 *align = MONO_ABI_ALIGNOF (double);
11031 case MONO_NATIVE_INT:
11032 case MONO_NATIVE_UINT:
11033 case MONO_NATIVE_LPSTR:
11034 case MONO_NATIVE_LPWSTR:
11035 case MONO_NATIVE_LPTSTR:
11036 case MONO_NATIVE_BSTR:
11037 case MONO_NATIVE_ANSIBSTR:
11038 case MONO_NATIVE_TBSTR:
11039 case MONO_NATIVE_LPARRAY:
11040 case MONO_NATIVE_SAFEARRAY:
11041 case MONO_NATIVE_IUNKNOWN:
11042 case MONO_NATIVE_IDISPATCH:
11043 case MONO_NATIVE_INTERFACE:
11044 case MONO_NATIVE_ASANY:
11045 case MONO_NATIVE_FUNC:
11046 case MONO_NATIVE_LPSTRUCT:
11047 *align = MONO_ABI_ALIGNOF (gpointer);
11048 return sizeof (gpointer);
11049 case MONO_NATIVE_STRUCT:
11050 klass = mono_class_from_mono_type (type);
11051 if (klass == mono_defaults.object_class &&
11052 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11056 return mono_class_native_size (klass, align);
11057 case MONO_NATIVE_BYVALTSTR: {
11058 int esize = unicode ? 2: 1;
11061 return mspec->data.array_data.num_elem * esize;
11063 case MONO_NATIVE_BYVALARRAY: {
11064 // FIXME: Have to consider ArraySubType
11066 klass = mono_class_from_mono_type (type);
11067 if (klass->element_class == mono_defaults.char_class) {
11068 esize = unicode ? 2 : 1;
11071 esize = mono_class_native_size (klass->element_class, align);
11074 return mspec->data.array_data.num_elem * esize;
11076 case MONO_NATIVE_CUSTOM:
11077 *align = sizeof (gpointer);
11078 return sizeof (gpointer);
11080 case MONO_NATIVE_CURRENCY:
11081 case MONO_NATIVE_VBBYREFSTR:
11083 g_error ("native type %02x not implemented", native_type);
11086 g_assert_not_reached ();
11091 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11100 t = &o->vtable->klass->byval_arg;
11104 case MONO_TYPE_PTR:
11107 case MONO_TYPE_BOOLEAN:
11110 case MONO_TYPE_CHAR:
11115 return mono_object_unbox (o);
11117 case MONO_TYPE_STRING:
11118 switch (string_encoding) {
11119 case MONO_NATIVE_LPWSTR:
11120 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11122 case MONO_NATIVE_LPSTR:
11123 return mono_string_to_lpstr ((MonoString*)o);
11126 g_warning ("marshaling conversion %d not implemented", string_encoding);
11127 g_assert_not_reached ();
11130 case MONO_TYPE_CLASS:
11131 case MONO_TYPE_VALUETYPE: {
11132 MonoMethod *method;
11135 MonoBoolean delete_old = FALSE;
11137 klass = t->data.klass;
11139 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11142 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11143 klass->blittable || klass->enumtype))
11144 return mono_object_unbox (o);
11146 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11147 mono_error_raise_exception (&error); /* FIXME don't raise here */
11149 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11150 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11154 pa [2] = &delete_old;
11156 mono_runtime_invoke_checked (method, NULL, pa, &error);
11157 mono_error_raise_exception (&error); /* FIXME don't raise here */
11165 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11170 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11179 t = &o->vtable->klass->byval_arg;
11181 case MONO_TYPE_STRING:
11182 switch (string_encoding) {
11183 case MONO_NATIVE_LPWSTR:
11184 case MONO_NATIVE_LPSTR:
11185 mono_marshal_free (ptr);
11188 g_warning ("marshaling conversion %d not implemented", string_encoding);
11189 g_assert_not_reached ();
11192 case MONO_TYPE_CLASS:
11193 case MONO_TYPE_VALUETYPE: {
11194 klass = t->data.klass;
11196 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11197 klass->blittable || klass->enumtype))
11200 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11201 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11207 mono_runtime_invoke_checked (method, NULL, pa, &error);
11208 mono_error_raise_exception (&error); /* FIXME don't raise here */
11211 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11212 mono_struct_delete_old (klass, (char *)ptr);
11215 mono_marshal_free (ptr);
11224 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11226 MonoMethodSignature *sig, *csig;
11227 MonoMethodBuilder *mb;
11232 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11233 mb->method->slot = -1;
11235 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11236 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11238 sig = mono_method_signature (method);
11239 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11240 csig->generic_param_count = 0;
11242 #ifndef DISABLE_JIT
11243 mono_mb_emit_ldarg (mb, 0);
11244 for (i = 0; i < csig->param_count; i++)
11245 mono_mb_emit_ldarg (mb, i + 1);
11246 mono_mb_emit_managed_call (mb, method, NULL);
11247 mono_mb_emit_byte (mb, CEE_RET);
11249 /* We can corlib internal methods */
11250 mb->skip_visibility = TRUE;
11252 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11253 info->d.generic_array_helper.method = method;
11254 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11262 * The mono_win32_compat_* functions are implementations of inline
11263 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11264 * although not exported by kernel32.
11266 * We map the appropiate kernel32 entries to these functions using
11267 * dllmaps declared in the global etc/mono/config.
11271 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11273 if (!dest || !source)
11276 memcpy (dest, source, length);
11280 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11282 memset (dest, fill, length);
11286 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11288 if (!dest || !source)
11291 memmove (dest, source, length);
11295 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11297 memset (dest, 0, length);
11301 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11306 for (i = 0; i < len; ++i)
11310 g_assert (i < len);
11313 while (byte && !(byte & 1))
11315 g_assert (byte == 1);
11318 *bitmask = buf [i];
11322 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11324 MonoMethodBuilder *mb;
11325 MonoMethodSignature *sig, *csig;
11326 MonoExceptionClause *clause;
11331 int i, param_count, sig_size, pos_leave;
11332 int coop_gc_var, coop_gc_dummy_local;
11336 klass = method->klass;
11337 image = method->klass->image;
11339 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11341 if ((res = mono_marshal_find_in_cache (cache, method)))
11344 sig = mono_method_signature (method);
11345 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11347 /* add "this" and exception param */
11348 param_count = sig->param_count + sig->hasthis + 1;
11350 /* dup & extend signature */
11351 csig = mono_metadata_signature_alloc (image, param_count);
11352 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11353 memcpy (csig, sig, sig_size);
11354 csig->param_count = param_count;
11357 csig->call_convention = MONO_CALL_DEFAULT;
11359 if (sig->hasthis) {
11361 csig->params [0] = &klass->byval_arg;
11362 /* move params up by one */
11363 for (i = 0; i < sig->param_count; i++)
11364 csig->params [i + 1] = sig->params [i];
11367 /* setup exception param as byref+[out] */
11368 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11369 &mono_defaults.exception_class->byval_arg);
11370 csig->params [param_count - 1]->byref = 1;
11371 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11373 /* convert struct return to object */
11374 if (MONO_TYPE_ISSTRUCT (sig->ret))
11375 csig->ret = &mono_defaults.object_class->byval_arg;
11377 #ifndef DISABLE_JIT
11378 /* local 0 (temp for exception object) */
11379 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11381 /* local 1 (temp for result) */
11382 if (!MONO_TYPE_IS_VOID (sig->ret))
11383 mono_mb_add_local (mb, sig->ret);
11385 if (mono_threads_is_coop_enabled ()) {
11386 /* local 4, the local to be used when calling the reset_blocking funcs */
11387 /* tons of code hardcode 3 to be the return var */
11388 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11389 /* local 5, the local used to get a stack address for suspend funcs */
11390 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11393 /* clear exception arg */
11394 mono_mb_emit_ldarg (mb, param_count - 1);
11395 mono_mb_emit_byte (mb, CEE_LDNULL);
11396 mono_mb_emit_byte (mb, CEE_STIND_REF);
11398 if (mono_threads_is_coop_enabled ()) {
11399 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11400 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11401 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11402 mono_mb_emit_stloc (mb, coop_gc_var);
11406 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11407 clause->try_offset = mono_mb_get_label (mb);
11409 /* push method's args */
11410 for (i = 0; i < param_count - 1; i++) {
11414 mono_mb_emit_ldarg (mb, i);
11416 /* get the byval type of the param */
11417 klass = mono_class_from_mono_type (csig->params [i]);
11418 type = &klass->byval_arg;
11420 /* unbox struct args */
11421 if (MONO_TYPE_ISSTRUCT (type)) {
11422 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11424 /* byref args & and the "this" arg must remain a ptr.
11425 Otherwise make a copy of the value type */
11426 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11427 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11429 csig->params [i] = &mono_defaults.object_class->byval_arg;
11434 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11435 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11437 mono_mb_emit_op (mb, CEE_CALL, method);
11439 /* save result at local 1 */
11440 if (!MONO_TYPE_IS_VOID (sig->ret))
11441 mono_mb_emit_stloc (mb, 1);
11443 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11446 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11447 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11448 clause->data.catch_class = mono_defaults.object_class;
11450 clause->handler_offset = mono_mb_get_label (mb);
11452 /* store exception at local 0 */
11453 mono_mb_emit_stloc (mb, 0);
11454 mono_mb_emit_ldarg (mb, param_count - 1);
11455 mono_mb_emit_ldloc (mb, 0);
11456 mono_mb_emit_byte (mb, CEE_STIND_REF);
11457 mono_mb_emit_branch (mb, CEE_LEAVE);
11459 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11461 mono_mb_set_clauses (mb, 1, clause);
11463 mono_mb_patch_branch (mb, pos_leave);
11466 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11467 mono_mb_emit_ldloc (mb, 1);
11469 /* box the return value */
11470 if (MONO_TYPE_ISSTRUCT (sig->ret))
11471 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11474 if (mono_threads_is_coop_enabled ()) {
11475 /* XXX merge reset_blocking_end with detach */
11476 mono_mb_emit_ldloc (mb, coop_gc_var);
11477 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11478 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11481 mono_mb_emit_byte (mb, CEE_RET);
11484 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11491 * mono_marshal_free_dynamic_wrappers:
11493 * Free wrappers of the dynamic method METHOD.
11496 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11498 MonoImage *image = method->klass->image;
11500 g_assert (method_is_dynamic (method));
11502 /* This could be called during shutdown */
11503 if (marshal_mutex_initialized)
11504 mono_marshal_lock ();
11506 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11507 * they could be shared with other methods ?
11509 if (image->wrapper_caches.runtime_invoke_direct_cache)
11510 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11511 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11512 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11513 // FIXME: Need to clear the caches in other images as well
11514 if (image->delegate_bound_static_invoke_cache)
11515 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11517 if (marshal_mutex_initialized)
11518 mono_marshal_unlock ();