2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
47 #include <mono/utils/mono-error-internals.h>
52 /* #define DEBUG_RUNTIME_CODE */
54 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
58 #include "mono/cil/opcode.def"
64 * This mutex protects the various marshalling related caches in MonoImage
65 * and a few other data structures static to this file.
67 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
68 * runtime locking latice. Which means it can take simple locks suck as the image lock.
70 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
71 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
72 static mono_mutex_t marshal_mutex;
73 static gboolean marshal_mutex_initialized;
75 static MonoNativeTlsKey last_error_tls_id;
77 static MonoNativeTlsKey load_type_info_tls_id;
79 static gboolean use_aot_wrappers;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
91 mono_struct_delete_old (MonoClass *klass, char *ptr);
94 mono_marshal_string_to_utf16 (MonoString *s);
97 mono_marshal_string_to_utf16_copy (MonoString *s);
100 mono_string_to_lpstr (MonoString *string_obj);
102 static MonoStringBuilder *
103 mono_string_utf8_to_builder2 (char *text);
105 static MonoStringBuilder *
106 mono_string_utf16_to_builder2 (gunichar2 *text);
109 mono_string_new_len_wrapper (const char *text, guint length);
112 mono_string_from_byvalstr (const char *data, int len);
115 mono_string_from_byvalwstr (gunichar2 *data, int len);
118 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
121 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_set_last_error_windows (int error);
139 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
141 static void init_safe_handle (void);
144 ves_icall_marshal_alloc (gulong size);
147 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
150 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
153 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
156 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
159 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
162 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
165 mono_delegate_to_ftnptr (MonoDelegate *delegate);
168 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
171 mono_array_to_savearray (MonoArray *array);
174 mono_array_to_lparray (MonoArray *array);
177 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
180 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
183 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
194 /* Lazy class loading functions */
195 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
196 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
197 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
198 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
200 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
201 static MonoMethod *sh_dangerous_add_ref;
202 static MonoMethod *sh_dangerous_release;
207 sh_dangerous_add_ref = mono_class_get_method_from_name (
208 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
209 sh_dangerous_release = mono_class_get_method_from_name (
210 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
214 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
216 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
218 mono_register_jit_icall (func, name, sig, save);
222 mono_signature_no_pinvoke (MonoMethod *method)
224 MonoMethodSignature *sig = mono_method_signature (method);
226 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
227 sig->pinvoke = FALSE;
234 mono_marshal_init_tls (void)
236 mono_native_tls_alloc (&last_error_tls_id, NULL);
237 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
241 mono_marshal_init (void)
243 static gboolean module_initialized = FALSE;
245 if (!module_initialized) {
246 module_initialized = TRUE;
247 mono_os_mutex_init_recursive (&marshal_mutex);
248 marshal_mutex_initialized = TRUE;
250 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
251 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
252 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
253 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
254 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
255 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
256 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
257 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
258 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
259 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
260 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
261 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
262 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
263 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
264 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
265 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
266 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
267 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
268 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
269 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
270 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
271 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
272 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
273 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
274 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
275 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
276 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
277 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
278 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
279 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
280 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
281 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
282 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
283 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
284 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
285 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
286 register_icall (g_free, "g_free", "void ptr", FALSE);
287 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
288 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
289 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
290 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
291 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
292 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
293 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
294 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
295 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
296 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
298 mono_cominterop_init ();
299 mono_remoting_init ();
301 if (mono_threads_is_coop_enabled ()) {
302 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
303 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
304 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
305 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
311 mono_marshal_cleanup (void)
313 mono_cominterop_cleanup ();
315 mono_native_tls_free (load_type_info_tls_id);
316 mono_native_tls_free (last_error_tls_id);
317 mono_os_mutex_destroy (&marshal_mutex);
318 marshal_mutex_initialized = FALSE;
322 mono_marshal_lock_internal (void)
324 mono_marshal_lock ();
328 mono_marshal_unlock_internal (void)
330 mono_marshal_unlock ();
333 /* This is a JIT icall, it sets the pending exception and return NULL on error */
335 mono_delegate_to_ftnptr (MonoDelegate *delegate)
338 MonoMethod *method, *wrapper;
340 uint32_t target_handle = 0;
345 if (delegate->delegate_trampoline)
346 return delegate->delegate_trampoline;
348 klass = ((MonoObject *)delegate)->vtable->klass;
349 g_assert (klass->delegate);
351 method = delegate->method;
352 if (delegate->method_is_virtual)
353 method = mono_object_get_virtual_method (delegate->target, method);
355 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
356 const char *exc_class, *exc_arg;
359 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
361 g_assert (exc_class);
362 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
368 if (delegate->target) {
369 /* Produce a location which can be embedded in JITted code */
370 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
373 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
375 delegate->delegate_trampoline = mono_compile_method (wrapper);
377 // Add the delegate to the delegate hash table
378 delegate_hash_table_add (delegate);
380 /* when the object is collected, collect the dynamic method, too */
381 mono_object_register_finalizer ((MonoObject*)delegate, &error);
382 if (!mono_error_ok (&error)) {
383 mono_error_set_pending_exception (&error);
387 return delegate->delegate_trampoline;
391 * this hash table maps from a delegate trampoline object to a weak reference
392 * of the delegate. As an optimizations with a non-moving GC we store the
393 * object pointer itself, otherwise we use a GC handle.
395 static GHashTable *delegate_hash_table;
398 delegate_hash_table_new (void) {
399 return g_hash_table_new (NULL, NULL);
403 delegate_hash_table_remove (MonoDelegate *d)
405 guint32 gchandle = 0;
407 mono_marshal_lock ();
408 if (delegate_hash_table == NULL)
409 delegate_hash_table = delegate_hash_table_new ();
410 if (mono_gc_is_moving ())
411 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
412 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
413 mono_marshal_unlock ();
414 if (gchandle && mono_gc_is_moving ())
415 mono_gchandle_free (gchandle);
419 delegate_hash_table_add (MonoDelegate *d)
422 guint32 old_gchandle;
424 mono_marshal_lock ();
425 if (delegate_hash_table == NULL)
426 delegate_hash_table = delegate_hash_table_new ();
427 if (mono_gc_is_moving ()) {
428 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
429 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
430 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
432 mono_gchandle_free (old_gchandle);
434 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
436 mono_marshal_unlock ();
440 * mono_marshal_use_aot_wrappers:
442 * Instructs this module to use AOT compatible wrappers.
445 mono_marshal_use_aot_wrappers (gboolean use)
447 use_aot_wrappers = use;
451 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
454 MonoCustomAttrInfo *cinfo;
455 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
457 /* The attribute is only available in Net 2.0 */
458 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
460 * The pinvoke attributes are stored in a real custom attribute so we have to
463 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
464 if (!mono_error_ok (&error)) {
465 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
466 mono_error_cleanup (&error);
468 if (cinfo && !mono_runtime_get_no_exec ()) {
469 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
471 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
473 if (!mono_error_ok (&error)) {
474 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
475 mono_error_cleanup (&error);
479 mono_custom_attrs_free (cinfo);
484 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
486 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
495 mono_marshal_lock ();
496 if (delegate_hash_table == NULL)
497 delegate_hash_table = delegate_hash_table_new ();
499 if (mono_gc_is_moving ()) {
500 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
501 mono_marshal_unlock ();
503 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
507 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
508 mono_marshal_unlock ();
511 /* This is a native function, so construct a delegate for it */
512 MonoMethodSignature *sig;
514 MonoMarshalSpec **mspecs;
515 MonoMethod *invoke = mono_get_delegate_invoke (klass);
516 MonoMethodPInvoke piinfo;
517 MonoObject *this_obj;
520 if (use_aot_wrappers) {
521 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
522 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
523 if (!is_ok (&error)) {
524 mono_error_set_pending_exception (&error);
528 memset (&piinfo, 0, sizeof (piinfo));
529 parse_unmanaged_function_pointer_attr (klass, &piinfo);
531 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
532 mono_method_get_marshal_info (invoke, mspecs);
533 /* Freed below so don't alloc from mempool */
534 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
537 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
540 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
542 mono_metadata_free_marshal_spec (mspecs [i]);
547 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
548 if (!mono_error_ok (&error)) {
549 mono_error_set_pending_exception (&error);
552 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
555 if (d->object.vtable->domain != mono_domain_get ()) {
556 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
564 mono_delegate_free_ftnptr (MonoDelegate *delegate)
569 delegate_hash_table_remove (delegate);
571 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
573 if (!delegate->target) {
574 /* The wrapper method is shared between delegates -> no need to free it */
583 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
586 method = mono_jit_info_get_method (ji);
587 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
589 /*the target gchandle is the first entry after size and the wrapper itself.*/
590 gchandle = GPOINTER_TO_UINT (method_data [2]);
593 mono_gchandle_free (gchandle);
595 mono_runtime_free_method (mono_object_domain (delegate), method);
600 mono_string_from_byvalstr (const char *data, int max_len)
602 MonoDomain *domain = mono_domain_get ();
608 while (len < max_len - 1 && data [len])
611 return mono_string_new_len (domain, data, len);
614 /* This is a JIT icall, it sets the pending exception and return NULL on error */
616 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
619 MonoString *res = NULL;
620 MonoDomain *domain = mono_domain_get ();
626 while (data [len]) len++;
628 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
629 if (!mono_error_ok (&error)) {
630 mono_error_set_pending_exception (&error);
637 mono_array_to_savearray (MonoArray *array)
642 g_assert_not_reached ();
647 mono_array_to_lparray (MonoArray *array)
650 gpointer *nativeArray = NULL;
651 int nativeArraySize = 0;
661 klass = array->obj.vtable->klass;
663 switch (klass->element_class->byval_arg.type) {
665 g_assert_not_reached ();
667 case MONO_TYPE_CLASS:
668 nativeArraySize = array->max_length;
669 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
670 for(i = 0; i < nativeArraySize; ++i)
671 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
674 case MONO_TYPE_BOOLEAN:
687 case MONO_TYPE_VALUETYPE:
691 case MONO_TYPE_GENERICINST:
692 case MONO_TYPE_OBJECT:
693 case MONO_TYPE_ARRAY:
694 case MONO_TYPE_SZARRAY:
695 case MONO_TYPE_STRING:
697 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
698 g_assert_not_reached ();
701 return array->vector;
705 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
716 klass = array->obj.vtable->klass;
718 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
719 for(i = 0; i < array->max_length; ++i)
720 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
727 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
729 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
731 if (elclass == mono_defaults.byte_class) {
732 GError *error = NULL;
736 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
739 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
743 g_error_free (error);
746 g_assert_not_reached ();
750 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
752 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
755 /* This is a JIT icall, it sets the pending exception and returns on error */
757 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
759 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
761 if (elclass == mono_defaults.byte_class) {
763 GError *error = NULL;
765 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
767 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
768 g_error_free (error);
772 memcpy (native_arr, as, MIN (strlen (as), elnum));
775 g_assert_not_reached ();
780 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
782 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
785 static MonoStringBuilder *
786 mono_string_builder_new (int starting_string_length)
788 static MonoClass *string_builder_class;
789 static MonoMethod *sb_ctor;
790 static void *args [1];
793 int initial_len = starting_string_length;
799 MonoMethodDesc *desc;
802 string_builder_class = mono_class_get_string_builder_class ();
803 g_assert (string_builder_class);
804 desc = mono_method_desc_new (":.ctor(int)", FALSE);
805 m = mono_method_desc_search_in_class (desc, string_builder_class);
807 mono_method_desc_free (desc);
808 mono_memory_barrier ();
812 // We make a new array in the _to_builder function, so this
813 // array will always be garbage collected.
814 args [0] = &initial_len;
816 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
817 mono_error_assert_ok (&error);
820 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
821 g_assert (exc == NULL);
822 mono_error_assert_ok (&error);
824 g_assert (sb->chunkChars->max_length >= initial_len);
830 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
832 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
833 gunichar2 *charSrc = (gunichar2 *)text;
834 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
836 sb->chunkLength = string_len;
842 mono_string_utf16_to_builder2 (gunichar2 *text)
848 for (len = 0; text [len] != 0; ++len);
850 MonoStringBuilder *sb = mono_string_builder_new (len);
851 mono_string_utf16_to_builder (sb, text);
857 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
862 int len = strlen (text);
863 if (len > mono_string_builder_capacity (sb))
864 len = mono_string_builder_capacity (sb);
866 GError *error = NULL;
868 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
871 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
872 mono_string_utf16_to_builder_copy (sb, ut, copied);
874 g_error_free (error);
880 mono_string_utf8_to_builder2 (char *text)
885 int len = strlen (text);
886 MonoStringBuilder *sb = mono_string_builder_new (len);
887 mono_string_utf8_to_builder (sb, text);
894 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
900 for (len = 0; text [len] != 0; ++len);
902 if (len > mono_string_builder_capacity (sb))
903 len = mono_string_builder_capacity (sb);
905 mono_string_utf16_to_builder_copy (sb, text, len);
909 * mono_string_builder_to_utf8:
910 * @sb: the string builder
912 * Converts to utf8 the contents of the MonoStringBuilder.
914 * Returns: a utf8 string with the contents of the StringBuilder.
916 * The return value must be released with g_free.
918 * This is a JIT icall, it sets the pending exception and returns NULL on error.
921 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
924 GError *gerror = NULL;
929 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
931 guint str_len = mono_string_builder_string_length (sb);
933 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
936 g_error_free (gerror);
938 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
941 guint len = mono_string_builder_capacity (sb) + 1;
942 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
943 if (!mono_error_ok (&error)) {
946 mono_error_set_pending_exception (&error);
950 g_assert (str_len < len);
951 memcpy (res, tmp, str_len * sizeof (gchar));
961 * mono_string_builder_to_utf16:
962 * @sb: the string builder
964 * Converts to utf16 the contents of the MonoStringBuilder.
966 * Returns: a utf16 string with the contents of the StringBuilder.
968 * The return value must not be freed.
969 * This is a JIT icall, it sets the pending exception and returns NULL on error.
972 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
979 g_assert (sb->chunkChars);
981 guint len = mono_string_builder_capacity (sb);
986 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
987 if (!mono_error_ok (&error)) {
988 mono_error_set_pending_exception (&error);
997 MonoStringBuilder* chunk = sb;
999 if (chunk->chunkLength > 0) {
1000 // Check that we will not overrun our boundaries.
1001 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1003 if (chunk->chunkLength <= len) {
1004 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1006 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1009 len -= chunk->chunkLength;
1011 chunk = chunk->chunkPrevious;
1012 } while (chunk != NULL);
1017 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1019 mono_string_to_lpstr (MonoString *s)
1024 GError *error = NULL;
1030 as = CoTaskMemAlloc (1);
1035 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1037 MonoException *exc = mono_get_exception_argument ("string", error->message);
1038 g_error_free (error);
1039 mono_set_pending_exception (exc);
1042 as = CoTaskMemAlloc (len + 1);
1043 memcpy (as, tmp, len + 1);
1048 return mono_string_to_utf8 (s);
1053 mono_string_to_ansibstr (MonoString *string_obj)
1055 g_error ("UnmanagedMarshal.BStr is not implemented.");
1060 * mono_string_to_byvalstr:
1061 * @dst: Where to store the null-terminated utf8 decoded string.
1062 * @src: the MonoString to copy.
1063 * @size: the maximum number of bytes to copy.
1065 * Copies the MonoString pointed to by @src as a utf8 string
1066 * into @dst, it copies at most @size bytes into the destination.
1069 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1074 g_assert (dst != NULL);
1075 g_assert (size > 0);
1077 memset (dst, 0, size);
1081 s = mono_string_to_utf8 (src);
1082 len = MIN (size, strlen (s));
1085 memcpy (dst, s, len);
1090 * mono_string_to_byvalwstr:
1091 * @dst: Where to store the null-terminated utf16 decoded string.
1092 * @src: the MonoString to copy.
1093 * @size: the maximum number of bytes to copy.
1095 * Copies the MonoString pointed to by @src as a utf16 string into
1096 * @dst, it copies at most @size bytes into the destination (including
1097 * a terminating 16-bit zero terminator).
1100 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1104 g_assert (dst != NULL);
1105 g_assert (size > 1);
1108 memset (dst, 0, size * 2);
1112 len = MIN (size, (mono_string_length (src)));
1113 memcpy (dst, mono_string_chars (src), size * 2);
1114 if (size <= mono_string_length (src))
1116 *((gunichar2 *) dst + len) = 0;
1120 mono_string_new_len_wrapper (const char *text, guint length)
1122 return mono_string_new_len (mono_domain_get (), text, length);
1128 * mono_mb_emit_exception_marshal_directive:
1130 * This function assumes ownership of MSG, which should be malloc-ed.
1133 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1138 s = mono_image_strdup (mb->method->klass->image, msg);
1143 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1146 #endif /* !DISABLE_JIT */
1149 mono_type_to_ldind (MonoType *type)
1155 switch (type->type) {
1157 return CEE_LDIND_I1;
1159 case MONO_TYPE_BOOLEAN:
1160 return CEE_LDIND_U1;
1162 return CEE_LDIND_I2;
1164 case MONO_TYPE_CHAR:
1165 return CEE_LDIND_U2;
1167 return CEE_LDIND_I4;
1169 return CEE_LDIND_U4;
1173 case MONO_TYPE_FNPTR:
1175 case MONO_TYPE_CLASS:
1176 case MONO_TYPE_STRING:
1177 case MONO_TYPE_OBJECT:
1178 case MONO_TYPE_SZARRAY:
1179 case MONO_TYPE_ARRAY:
1180 return CEE_LDIND_REF;
1183 return CEE_LDIND_I8;
1185 return CEE_LDIND_R4;
1187 return CEE_LDIND_R8;
1188 case MONO_TYPE_VALUETYPE:
1189 if (type->data.klass->enumtype) {
1190 type = mono_class_enum_basetype (type->data.klass);
1194 case MONO_TYPE_TYPEDBYREF:
1196 case MONO_TYPE_GENERICINST:
1197 type = &type->data.generic_class->container_class->byval_arg;
1200 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1206 mono_type_to_stind (MonoType *type)
1212 switch (type->type) {
1215 case MONO_TYPE_BOOLEAN:
1216 return CEE_STIND_I1;
1219 case MONO_TYPE_CHAR:
1220 return CEE_STIND_I2;
1223 return CEE_STIND_I4;
1227 case MONO_TYPE_FNPTR:
1229 case MONO_TYPE_CLASS:
1230 case MONO_TYPE_STRING:
1231 case MONO_TYPE_OBJECT:
1232 case MONO_TYPE_SZARRAY:
1233 case MONO_TYPE_ARRAY:
1234 return CEE_STIND_REF;
1237 return CEE_STIND_I8;
1239 return CEE_STIND_R4;
1241 return CEE_STIND_R8;
1242 case MONO_TYPE_VALUETYPE:
1243 if (type->data.klass->enumtype) {
1244 type = mono_class_enum_basetype (type->data.klass);
1248 case MONO_TYPE_TYPEDBYREF:
1250 case MONO_TYPE_GENERICINST:
1251 type = &type->data.generic_class->container_class->byval_arg;
1254 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1262 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1265 case MONO_MARSHAL_CONV_BOOL_I4:
1266 mono_mb_emit_ldloc (mb, 1);
1267 mono_mb_emit_ldloc (mb, 0);
1268 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1269 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1270 mono_mb_emit_byte (mb, 3);
1271 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1272 mono_mb_emit_byte (mb, CEE_BR_S);
1273 mono_mb_emit_byte (mb, 1);
1274 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1275 mono_mb_emit_byte (mb, CEE_STIND_I1);
1277 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1278 mono_mb_emit_ldloc (mb, 1);
1279 mono_mb_emit_ldloc (mb, 0);
1280 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1281 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1282 mono_mb_emit_byte (mb, 3);
1283 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1284 mono_mb_emit_byte (mb, CEE_BR_S);
1285 mono_mb_emit_byte (mb, 1);
1286 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1287 mono_mb_emit_byte (mb, CEE_STIND_I1);
1289 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1290 MonoClass *eklass = NULL;
1293 if (type->type == MONO_TYPE_SZARRAY) {
1294 eklass = type->data.klass;
1296 g_assert_not_reached ();
1299 esize = mono_class_native_size (eklass, NULL);
1301 /* create a new array */
1302 mono_mb_emit_ldloc (mb, 1);
1303 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1304 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1305 mono_mb_emit_byte (mb, CEE_STIND_I);
1307 if (eklass->blittable) {
1308 /* copy the elements */
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_byte (mb, CEE_LDIND_I);
1311 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1312 mono_mb_emit_byte (mb, CEE_ADD);
1313 mono_mb_emit_ldloc (mb, 0);
1314 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1315 mono_mb_emit_byte (mb, CEE_PREFIX1);
1316 mono_mb_emit_byte (mb, CEE_CPBLK);
1319 int array_var, src_var, dst_var, index_var;
1320 guint32 label2, label3;
1322 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1323 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1324 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1329 mono_mb_emit_stloc (mb, array_var);
1331 /* save the old src pointer */
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_stloc (mb, src_var);
1334 /* save the old dst pointer */
1335 mono_mb_emit_ldloc (mb, 1);
1336 mono_mb_emit_stloc (mb, dst_var);
1338 /* Emit marshalling loop */
1339 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1340 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1341 mono_mb_emit_stloc (mb, index_var);
1344 label2 = mono_mb_get_label (mb);
1345 mono_mb_emit_ldloc (mb, index_var);
1346 mono_mb_emit_ldloc (mb, array_var);
1347 mono_mb_emit_byte (mb, CEE_LDLEN);
1348 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1350 /* src is already set */
1353 mono_mb_emit_ldloc (mb, array_var);
1354 mono_mb_emit_ldloc (mb, index_var);
1355 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1356 mono_mb_emit_stloc (mb, 1);
1358 /* Do the conversion */
1359 emit_struct_conv (mb, eklass, TRUE);
1362 mono_mb_emit_add_to_local (mb, index_var, 1);
1364 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1366 mono_mb_patch_branch (mb, label3);
1368 /* restore the old src pointer */
1369 mono_mb_emit_ldloc (mb, src_var);
1370 mono_mb_emit_stloc (mb, 0);
1371 /* restore the old dst pointer */
1372 mono_mb_emit_ldloc (mb, dst_var);
1373 mono_mb_emit_stloc (mb, 1);
1377 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1378 MonoClass *eclass = mono_defaults.char_class;
1380 /* create a new array */
1381 mono_mb_emit_ldloc (mb, 1);
1382 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1383 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1384 mono_mb_emit_byte (mb, CEE_STIND_REF);
1386 mono_mb_emit_ldloc (mb, 1);
1387 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1388 mono_mb_emit_ldloc (mb, 0);
1389 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1390 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1393 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1394 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1395 mono_mb_emit_ldloc (mb, 1);
1396 mono_mb_emit_ldloc (mb, 0);
1397 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1398 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_ldloc (mb, 0);
1402 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1404 mono_mb_emit_byte (mb, CEE_STIND_REF);
1406 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1407 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1408 mono_mb_emit_ldloc (mb, 1);
1409 mono_mb_emit_ldloc (mb, 0);
1410 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1411 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1413 mono_mb_emit_ldloc (mb, 1);
1414 mono_mb_emit_ldloc (mb, 0);
1415 mono_mb_emit_icall (mb, mono_string_from_utf16);
1417 mono_mb_emit_byte (mb, CEE_STIND_REF);
1419 case MONO_MARSHAL_CONV_STR_LPTSTR:
1420 mono_mb_emit_ldloc (mb, 1);
1421 mono_mb_emit_ldloc (mb, 0);
1422 mono_mb_emit_byte (mb, CEE_LDIND_I);
1424 mono_mb_emit_icall (mb, mono_string_from_utf16);
1426 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1428 mono_mb_emit_byte (mb, CEE_STIND_REF);
1430 case MONO_MARSHAL_CONV_STR_LPSTR:
1431 mono_mb_emit_ldloc (mb, 1);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_byte (mb, CEE_LDIND_I);
1434 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1435 mono_mb_emit_byte (mb, CEE_STIND_REF);
1437 case MONO_MARSHAL_CONV_STR_LPWSTR:
1438 mono_mb_emit_ldloc (mb, 1);
1439 mono_mb_emit_ldloc (mb, 0);
1440 mono_mb_emit_byte (mb, CEE_LDIND_I);
1441 mono_mb_emit_icall (mb, mono_string_from_utf16);
1442 mono_mb_emit_byte (mb, CEE_STIND_REF);
1444 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1445 MonoClass *klass = mono_class_from_mono_type (type);
1446 int src_var, dst_var;
1448 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1449 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1451 /* *dst = new object */
1452 mono_mb_emit_ldloc (mb, 1);
1453 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1454 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1455 mono_mb_emit_byte (mb, CEE_STIND_REF);
1457 /* save the old src pointer */
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_stloc (mb, src_var);
1460 /* save the old dst pointer */
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_stloc (mb, dst_var);
1464 /* dst = pointer to newly created object data */
1465 mono_mb_emit_ldloc (mb, 1);
1466 mono_mb_emit_byte (mb, CEE_LDIND_I);
1467 mono_mb_emit_icon (mb, sizeof (MonoObject));
1468 mono_mb_emit_byte (mb, CEE_ADD);
1469 mono_mb_emit_stloc (mb, 1);
1471 emit_struct_conv (mb, klass, TRUE);
1473 /* restore the old src pointer */
1474 mono_mb_emit_ldloc (mb, src_var);
1475 mono_mb_emit_stloc (mb, 0);
1476 /* restore the old dst pointer */
1477 mono_mb_emit_ldloc (mb, dst_var);
1478 mono_mb_emit_stloc (mb, 1);
1481 case MONO_MARSHAL_CONV_DEL_FTN: {
1482 MonoClass *klass = mono_class_from_mono_type (type);
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1486 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1487 mono_mb_emit_ldloc (mb, 0);
1488 mono_mb_emit_byte (mb, CEE_LDIND_I);
1489 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1490 mono_mb_emit_byte (mb, CEE_STIND_REF);
1493 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1494 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1498 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1499 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1500 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1501 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1503 #endif /* DISABLE_COM */
1505 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1507 * Passing SafeHandles as ref does not allow the unmanaged code
1508 * to change the SafeHandle value. If the value is changed,
1509 * we should issue a diagnostic exception (NotSupportedException)
1510 * that informs the user that changes to handles in unmanaged code
1513 * Since we currently have no access to the original
1514 * SafeHandle that was used during the marshalling,
1515 * for now we just ignore this, and ignore/discard any
1516 * changes that might have happened to the handle.
1521 case MONO_MARSHAL_CONV_HANDLEREF: {
1523 * Passing HandleRefs in a struct that is ref()ed does not
1524 * copy the values back to the HandleRef
1529 case MONO_MARSHAL_CONV_STR_BSTR:
1530 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1531 case MONO_MARSHAL_CONV_STR_TBSTR:
1532 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1534 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1536 mono_mb_emit_exception_marshal_directive (mb, msg);
1543 conv_to_icall (MonoMarshalConv conv)
1546 case MONO_MARSHAL_CONV_STR_LPWSTR:
1547 return mono_marshal_string_to_utf16;
1548 case MONO_MARSHAL_CONV_LPWSTR_STR:
1549 return mono_string_from_utf16;
1550 case MONO_MARSHAL_CONV_LPTSTR_STR:
1551 return mono_string_new_wrapper;
1552 case MONO_MARSHAL_CONV_LPSTR_STR:
1553 return mono_string_new_wrapper;
1554 case MONO_MARSHAL_CONV_STR_LPTSTR:
1556 return mono_marshal_string_to_utf16;
1558 return mono_string_to_lpstr;
1560 case MONO_MARSHAL_CONV_STR_LPSTR:
1561 return mono_string_to_lpstr;
1562 case MONO_MARSHAL_CONV_STR_BSTR:
1563 return mono_string_to_bstr;
1564 case MONO_MARSHAL_CONV_BSTR_STR:
1565 return mono_string_from_bstr;
1566 case MONO_MARSHAL_CONV_STR_TBSTR:
1567 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1568 return mono_string_to_ansibstr;
1569 case MONO_MARSHAL_CONV_SB_LPSTR:
1570 return mono_string_builder_to_utf8;
1571 case MONO_MARSHAL_CONV_SB_LPTSTR:
1573 return mono_string_builder_to_utf16;
1575 return mono_string_builder_to_utf8;
1577 case MONO_MARSHAL_CONV_SB_LPWSTR:
1578 return mono_string_builder_to_utf16;
1579 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1580 return mono_array_to_savearray;
1581 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1582 return mono_array_to_lparray;
1583 case MONO_MARSHAL_FREE_LPARRAY:
1584 return mono_free_lparray;
1585 case MONO_MARSHAL_CONV_DEL_FTN:
1586 return mono_delegate_to_ftnptr;
1587 case MONO_MARSHAL_CONV_FTN_DEL:
1588 return mono_ftnptr_to_delegate;
1589 case MONO_MARSHAL_CONV_LPSTR_SB:
1590 return mono_string_utf8_to_builder;
1591 case MONO_MARSHAL_CONV_LPTSTR_SB:
1593 return mono_string_utf16_to_builder;
1595 return mono_string_utf8_to_builder;
1597 case MONO_MARSHAL_CONV_LPWSTR_SB:
1598 return mono_string_utf16_to_builder;
1599 case MONO_MARSHAL_FREE_ARRAY:
1600 return mono_marshal_free_array;
1601 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1602 return mono_string_to_byvalstr;
1603 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1604 return mono_string_to_byvalwstr;
1606 g_assert_not_reached ();
1613 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1618 case MONO_MARSHAL_CONV_BOOL_I4:
1619 mono_mb_emit_ldloc (mb, 1);
1620 mono_mb_emit_ldloc (mb, 0);
1621 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1622 mono_mb_emit_byte (mb, CEE_STIND_I4);
1624 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1625 mono_mb_emit_ldloc (mb, 1);
1626 mono_mb_emit_ldloc (mb, 0);
1627 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1628 mono_mb_emit_byte (mb, CEE_NEG);
1629 mono_mb_emit_byte (mb, CEE_STIND_I2);
1631 case MONO_MARSHAL_CONV_STR_LPWSTR:
1632 case MONO_MARSHAL_CONV_STR_LPSTR:
1633 case MONO_MARSHAL_CONV_STR_LPTSTR:
1634 case MONO_MARSHAL_CONV_STR_BSTR:
1635 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1636 case MONO_MARSHAL_CONV_STR_TBSTR: {
1639 /* free space if free == true */
1640 mono_mb_emit_ldloc (mb, 2);
1641 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1642 mono_mb_emit_ldloc (mb, 1);
1643 mono_mb_emit_byte (mb, CEE_LDIND_I);
1644 mono_mb_emit_icall (mb, g_free);
1645 mono_mb_patch_short_branch (mb, pos);
1647 mono_mb_emit_ldloc (mb, 1);
1648 mono_mb_emit_ldloc (mb, 0);
1649 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1650 mono_mb_emit_icall (mb, conv_to_icall (conv));
1651 mono_mb_emit_byte (mb, CEE_STIND_I);
1654 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1655 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1656 case MONO_MARSHAL_CONV_DEL_FTN:
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 mono_mb_emit_icall (mb, conv_to_icall (conv));
1661 mono_mb_emit_byte (mb, CEE_STIND_I);
1663 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1664 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1667 mono_mb_emit_ldloc (mb, 1); /* dst */
1668 mono_mb_emit_ldloc (mb, 0);
1669 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1670 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1671 mono_mb_emit_icall (mb, conv_to_icall (conv));
1674 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1675 MonoClass *eklass = NULL;
1678 if (type->type == MONO_TYPE_SZARRAY) {
1679 eklass = type->data.klass;
1681 g_assert_not_reached ();
1684 if (eklass->valuetype)
1685 esize = mono_class_native_size (eklass, NULL);
1687 esize = sizeof (gpointer);
1689 mono_mb_emit_ldloc (mb, 0);
1690 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1691 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1693 if (eklass->blittable) {
1694 mono_mb_emit_ldloc (mb, 1);
1695 mono_mb_emit_ldloc (mb, 0);
1696 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1697 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1698 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1699 mono_mb_emit_byte (mb, CEE_PREFIX1);
1700 mono_mb_emit_byte (mb, CEE_CPBLK);
1702 int array_var, src_var, dst_var, index_var;
1703 guint32 label2, label3;
1705 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1706 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1707 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1710 mono_mb_emit_ldloc (mb, 0);
1711 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1712 mono_mb_emit_stloc (mb, array_var);
1714 /* save the old src pointer */
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_stloc (mb, src_var);
1717 /* save the old dst pointer */
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_stloc (mb, dst_var);
1721 /* Emit marshalling loop */
1722 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1723 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1724 mono_mb_emit_stloc (mb, index_var);
1727 label2 = mono_mb_get_label (mb);
1728 mono_mb_emit_ldloc (mb, index_var);
1729 mono_mb_emit_ldloc (mb, array_var);
1730 mono_mb_emit_byte (mb, CEE_LDLEN);
1731 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1734 mono_mb_emit_ldloc (mb, array_var);
1735 mono_mb_emit_ldloc (mb, index_var);
1736 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1737 mono_mb_emit_stloc (mb, 0);
1739 /* dst is already set */
1741 /* Do the conversion */
1742 emit_struct_conv (mb, eklass, FALSE);
1745 mono_mb_emit_add_to_local (mb, index_var, 1);
1747 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1749 mono_mb_patch_branch (mb, label3);
1751 /* restore the old src pointer */
1752 mono_mb_emit_ldloc (mb, src_var);
1753 mono_mb_emit_stloc (mb, 0);
1754 /* restore the old dst pointer */
1755 mono_mb_emit_ldloc (mb, dst_var);
1756 mono_mb_emit_stloc (mb, 1);
1759 mono_mb_patch_branch (mb, pos);
1762 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1763 mono_mb_emit_ldloc (mb, 0);
1764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1765 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1767 mono_mb_emit_ldloc (mb, 1);
1768 mono_mb_emit_ldloc (mb, 0);
1769 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1770 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1771 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1772 mono_mb_patch_short_branch (mb, pos);
1775 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1776 int src_var, dst_var;
1778 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1779 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1781 mono_mb_emit_ldloc (mb, 0);
1782 mono_mb_emit_byte (mb, CEE_LDIND_I);
1783 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1785 /* save the old src pointer */
1786 mono_mb_emit_ldloc (mb, 0);
1787 mono_mb_emit_stloc (mb, src_var);
1788 /* save the old dst pointer */
1789 mono_mb_emit_ldloc (mb, 1);
1790 mono_mb_emit_stloc (mb, dst_var);
1792 /* src = pointer to object data */
1793 mono_mb_emit_ldloc (mb, 0);
1794 mono_mb_emit_byte (mb, CEE_LDIND_I);
1795 mono_mb_emit_icon (mb, sizeof (MonoObject));
1796 mono_mb_emit_byte (mb, CEE_ADD);
1797 mono_mb_emit_stloc (mb, 0);
1799 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1801 /* restore the old src pointer */
1802 mono_mb_emit_ldloc (mb, src_var);
1803 mono_mb_emit_stloc (mb, 0);
1804 /* restore the old dst pointer */
1805 mono_mb_emit_ldloc (mb, dst_var);
1806 mono_mb_emit_stloc (mb, 1);
1808 mono_mb_patch_branch (mb, pos);
1813 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1814 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1815 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1816 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1818 #endif /* DISABLE_COM */
1820 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1823 mono_mb_emit_ldloc (mb, 0);
1824 mono_mb_emit_byte (mb, CEE_LDIND_I);
1825 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1826 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1827 mono_mb_patch_branch (mb, pos);
1829 /* Pull the handle field from SafeHandle */
1830 mono_mb_emit_ldloc (mb, 1);
1831 mono_mb_emit_ldloc (mb, 0);
1832 mono_mb_emit_byte (mb, CEE_LDIND_I);
1833 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1834 mono_mb_emit_byte (mb, CEE_LDIND_I);
1835 mono_mb_emit_byte (mb, CEE_STIND_I);
1839 case MONO_MARSHAL_CONV_HANDLEREF: {
1840 mono_mb_emit_ldloc (mb, 1);
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1843 mono_mb_emit_byte (mb, CEE_ADD);
1844 mono_mb_emit_byte (mb, CEE_LDIND_I);
1845 mono_mb_emit_byte (mb, CEE_STIND_I);
1850 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1851 MonoException *exc = mono_get_exception_not_implemented (msg);
1852 g_warning ("%s", msg);
1854 mono_raise_exception (exc);
1860 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1861 MonoMarshalNative string_encoding)
1863 MonoMarshalType *info;
1867 emit_struct_conv(mb, klass->parent, to_object);
1869 info = mono_marshal_load_type_info (klass);
1871 if (info->native_size == 0)
1874 if (klass->blittable) {
1875 int msize = mono_class_value_size (klass, NULL);
1876 g_assert (msize == info->native_size);
1877 mono_mb_emit_ldloc (mb, 1);
1878 mono_mb_emit_ldloc (mb, 0);
1879 mono_mb_emit_icon (mb, msize);
1880 mono_mb_emit_byte (mb, CEE_PREFIX1);
1881 mono_mb_emit_byte (mb, CEE_CPBLK);
1883 mono_mb_emit_add_to_local (mb, 0, msize);
1884 mono_mb_emit_add_to_local (mb, 1, msize);
1888 if (klass != mono_class_try_get_safehandle_class ()) {
1889 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1890 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1891 mono_type_full_name (&klass->byval_arg));
1892 mono_mb_emit_exception_marshal_directive (mb, msg);
1897 for (i = 0; i < info->num_fields; i++) {
1898 MonoMarshalNative ntype;
1899 MonoMarshalConv conv;
1900 MonoType *ftype = info->fields [i].field->type;
1903 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1905 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1908 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1911 msize = klass->instance_size - info->fields [i].field->offset;
1912 usize = info->native_size - info->fields [i].offset;
1914 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1915 usize = info->fields [i + 1].offset - info->fields [i].offset;
1918 if (klass != mono_class_try_get_safehandle_class ()){
1920 * FIXME: Should really check for usize==0 and msize>0, but we apply
1921 * the layout to the managed structure as well.
1924 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1925 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1926 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1927 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1928 "reference field at the same offset as another field.",
1929 mono_type_full_name (&klass->byval_arg));
1934 case MONO_MARSHAL_CONV_NONE: {
1937 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1938 ftype->type == MONO_TYPE_U) {
1939 mono_mb_emit_ldloc (mb, 1);
1940 mono_mb_emit_ldloc (mb, 0);
1941 mono_mb_emit_byte (mb, CEE_LDIND_I);
1942 mono_mb_emit_byte (mb, CEE_STIND_I);
1953 case MONO_TYPE_BOOLEAN:
1956 case MONO_TYPE_CHAR:
1962 mono_mb_emit_ldloc (mb, 1);
1963 mono_mb_emit_ldloc (mb, 0);
1964 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1966 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1967 mono_mb_emit_byte (mb, CEE_STIND_I2);
1969 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1970 mono_mb_emit_byte (mb, CEE_STIND_I1);
1973 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1974 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1977 case MONO_TYPE_VALUETYPE: {
1978 int src_var, dst_var;
1980 if (ftype->data.klass->enumtype) {
1981 ftype = mono_class_enum_basetype (ftype->data.klass);
1985 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1986 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1988 /* save the old src pointer */
1989 mono_mb_emit_ldloc (mb, 0);
1990 mono_mb_emit_stloc (mb, src_var);
1991 /* save the old dst pointer */
1992 mono_mb_emit_ldloc (mb, 1);
1993 mono_mb_emit_stloc (mb, dst_var);
1995 emit_struct_conv (mb, ftype->data.klass, to_object);
1997 /* restore the old src pointer */
1998 mono_mb_emit_ldloc (mb, src_var);
1999 mono_mb_emit_stloc (mb, 0);
2000 /* restore the old dst pointer */
2001 mono_mb_emit_ldloc (mb, dst_var);
2002 mono_mb_emit_stloc (mb, 1);
2005 case MONO_TYPE_OBJECT: {
2008 static MonoMethod *variant_clear = NULL;
2009 static MonoMethod *get_object_for_native_variant = NULL;
2012 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2013 if (!get_object_for_native_variant)
2014 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2015 mono_mb_emit_ldloc (mb, 1);
2016 mono_mb_emit_ldloc (mb, 0);
2017 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2018 mono_mb_emit_byte (mb, CEE_STIND_REF);
2020 mono_mb_emit_ldloc (mb, 0);
2021 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2024 static MonoMethod *get_native_variant_for_object = NULL;
2026 if (!get_native_variant_for_object)
2027 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2029 mono_mb_emit_ldloc (mb, 0);
2030 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2031 mono_mb_emit_ldloc (mb, 1);
2032 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2035 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2036 mono_mb_emit_exception_marshal_directive (mb, msg);
2042 g_warning ("marshaling type %02x not implemented", ftype->type);
2043 g_assert_not_reached ();
2048 int src_var, dst_var;
2050 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2051 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2053 /* save the old src pointer */
2054 mono_mb_emit_ldloc (mb, 0);
2055 mono_mb_emit_stloc (mb, src_var);
2056 /* save the old dst pointer */
2057 mono_mb_emit_ldloc (mb, 1);
2058 mono_mb_emit_stloc (mb, dst_var);
2061 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2063 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2065 /* restore the old src pointer */
2066 mono_mb_emit_ldloc (mb, src_var);
2067 mono_mb_emit_stloc (mb, 0);
2068 /* restore the old dst pointer */
2069 mono_mb_emit_ldloc (mb, dst_var);
2070 mono_mb_emit_stloc (mb, 1);
2075 mono_mb_emit_add_to_local (mb, 0, usize);
2076 mono_mb_emit_add_to_local (mb, 1, msize);
2078 mono_mb_emit_add_to_local (mb, 0, msize);
2079 mono_mb_emit_add_to_local (mb, 1, usize);
2085 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2087 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2091 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2093 /* Call DestroyStructure */
2094 /* FIXME: Only do this if needed */
2095 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2096 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2097 mono_mb_emit_ldloc (mb, struct_var);
2098 mono_mb_emit_icall (mb, mono_struct_delete_old);
2102 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2104 int pos_noabort, pos_noex;
2106 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2107 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2108 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2109 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2111 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2112 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2114 mono_mb_emit_icall (mb, checkpoint_func);
2115 /* Throw the exception returned by the checkpoint function, if any */
2116 mono_mb_emit_byte (mb, CEE_DUP);
2117 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2118 mono_mb_emit_byte (mb, CEE_THROW);
2119 mono_mb_patch_branch (mb, pos_noex);
2120 mono_mb_emit_byte (mb, CEE_POP);
2122 mono_mb_patch_branch (mb, pos_noabort);
2126 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2128 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2131 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2135 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2137 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2141 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2143 emit_thread_interrupt_checkpoint (mb);
2147 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2149 emit_thread_force_interrupt_checkpoint (mb);
2152 #endif /* DISABLE_JIT */
2154 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2155 static MonoAsyncResult *
2156 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2159 MonoMulticastDelegate *mcast_delegate;
2163 g_assert (delegate);
2164 mcast_delegate = (MonoMulticastDelegate *) delegate;
2165 if (mcast_delegate->delegates != NULL) {
2166 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2170 #ifndef DISABLE_REMOTING
2171 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2172 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2173 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2174 /* If the target is a proxy, make a direct call. Is proxy's work
2175 // to make the call asynchronous.
2177 MonoMethodMessage *msg;
2178 MonoDelegate *async_callback;
2180 MonoAsyncResult *ares;
2182 MonoArray *out_args;
2183 method = delegate->method;
2185 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2186 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2187 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2188 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2189 MONO_OBJECT_SETREF (msg, async_result, ares);
2190 msg->call_type = CallType_BeginInvoke;
2193 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2194 if (!mono_error_ok (&error)) {
2195 mono_error_set_pending_exception (&error);
2199 mono_set_pending_exception ((MonoException *) exc);
2205 klass = delegate->object.vtable->klass;
2207 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2209 method = mono_get_delegate_invoke (klass);
2212 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2218 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2220 int i, params_var, tmp_var;
2222 /* allocate local (pointer) *params[] */
2223 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2224 /* allocate local (pointer) tmp */
2225 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2227 /* alloate space on stack to store an array of pointers to the arguments */
2228 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2229 mono_mb_emit_byte (mb, CEE_PREFIX1);
2230 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2231 mono_mb_emit_stloc (mb, params_var);
2234 mono_mb_emit_ldloc (mb, params_var);
2235 mono_mb_emit_stloc (mb, tmp_var);
2237 if (save_this && sig->hasthis) {
2238 mono_mb_emit_ldloc (mb, tmp_var);
2239 mono_mb_emit_ldarg_addr (mb, 0);
2240 mono_mb_emit_byte (mb, CEE_STIND_I);
2241 /* tmp = tmp + sizeof (gpointer) */
2242 if (sig->param_count)
2243 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2247 for (i = 0; i < sig->param_count; i++) {
2248 mono_mb_emit_ldloc (mb, tmp_var);
2249 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2250 mono_mb_emit_byte (mb, CEE_STIND_I);
2251 /* tmp = tmp + sizeof (gpointer) */
2252 if (i < (sig->param_count - 1))
2253 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2259 #endif /* DISABLE_JIT */
2262 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2266 GString *res = g_string_new ("");
2269 g_string_append (res, prefix);
2270 g_string_append_c (res, '_');
2273 mono_type_get_desc (res, sig->ret, FALSE);
2276 g_string_append (res, "__this__");
2278 for (i = 0; i < sig->param_count; ++i) {
2279 g_string_append_c (res, '_');
2280 mono_type_get_desc (res, sig->params [i], FALSE);
2283 g_string_free (res, FALSE);
2288 * mono_marshal_get_string_encoding:
2290 * Return the string encoding which should be used for a given parameter.
2292 static MonoMarshalNative
2293 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2295 /* First try the parameter marshal info */
2297 if (spec->native == MONO_NATIVE_LPARRAY) {
2298 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2299 return spec->data.array_data.elem_type;
2302 return spec->native;
2306 return MONO_NATIVE_LPSTR;
2308 /* Then try the method level marshal info */
2309 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2310 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2311 return MONO_NATIVE_LPSTR;
2312 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2313 return MONO_NATIVE_LPWSTR;
2314 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2316 return MONO_NATIVE_LPWSTR;
2318 return MONO_NATIVE_LPSTR;
2321 return MONO_NATIVE_LPSTR;
2325 static MonoMarshalConv
2326 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2328 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2331 case MONO_NATIVE_LPWSTR:
2332 return MONO_MARSHAL_CONV_STR_LPWSTR;
2333 case MONO_NATIVE_LPSTR:
2334 case MONO_NATIVE_VBBYREFSTR:
2335 return MONO_MARSHAL_CONV_STR_LPSTR;
2336 case MONO_NATIVE_LPTSTR:
2337 return MONO_MARSHAL_CONV_STR_LPTSTR;
2338 case MONO_NATIVE_BSTR:
2339 return MONO_MARSHAL_CONV_STR_BSTR;
2341 return (MonoMarshalConv)-1;
2345 static MonoMarshalConv
2346 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2348 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2351 case MONO_NATIVE_LPWSTR:
2352 return MONO_MARSHAL_CONV_SB_LPWSTR;
2354 case MONO_NATIVE_LPSTR:
2355 return MONO_MARSHAL_CONV_SB_LPSTR;
2357 case MONO_NATIVE_LPTSTR:
2358 return MONO_MARSHAL_CONV_SB_LPTSTR;
2361 return (MonoMarshalConv)-1;
2365 static MonoMarshalConv
2366 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2368 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2373 case MONO_NATIVE_LPWSTR:
2375 return MONO_MARSHAL_CONV_LPWSTR_STR;
2376 case MONO_NATIVE_LPSTR:
2377 case MONO_NATIVE_VBBYREFSTR:
2378 return MONO_MARSHAL_CONV_LPSTR_STR;
2379 case MONO_NATIVE_LPTSTR:
2380 return MONO_MARSHAL_CONV_LPTSTR_STR;
2381 case MONO_NATIVE_BSTR:
2382 return MONO_MARSHAL_CONV_BSTR_STR;
2384 return (MonoMarshalConv)-1;
2388 static MonoMarshalConv
2389 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2391 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2396 case MONO_NATIVE_LPWSTR:
2398 * mono_string_builder_to_utf16 does not allocate a
2399 * new buffer, so no need to free it.
2402 return MONO_MARSHAL_CONV_LPWSTR_SB;
2403 case MONO_NATIVE_LPSTR:
2404 return MONO_MARSHAL_CONV_LPSTR_SB;
2406 case MONO_NATIVE_LPTSTR:
2407 return MONO_MARSHAL_CONV_LPTSTR_SB;
2410 return (MonoMarshalConv)-1;
2415 * Return whenever a field of a native structure or an array member needs to
2419 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2421 MonoMarshalNative encoding;
2424 case MONO_TYPE_VALUETYPE:
2425 /* FIXME: Optimize this */
2427 case MONO_TYPE_OBJECT:
2428 case MONO_TYPE_CLASS:
2429 if (t->data.klass == mono_defaults.stringbuilder_class) {
2431 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2435 case MONO_TYPE_STRING:
2436 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2437 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2444 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2447 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2450 mono_marshal_lock ();
2453 g_hash_table_new (hash_func, equal_func);
2454 mono_memory_barrier ();
2457 mono_marshal_unlock ();
2463 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2465 return get_cache (var, hash_func, equal_func);
2469 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2473 mono_marshal_lock ();
2474 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2475 mono_marshal_unlock ();
2482 * Create a MonoMethod from MB, set INFO as wrapper info.
2485 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2486 int max_stack, WrapperInfo *info)
2490 res = mono_mb_create_method (mb, sig, max_stack);
2492 mono_marshal_set_wrapper_info (res, info);
2496 /* Create the method from the builder and place it in the cache */
2498 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2499 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2500 int max_stack, WrapperInfo *info, gboolean *out_found)
2507 mono_marshal_lock ();
2508 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2509 mono_marshal_unlock ();
2512 newm = mono_mb_create_method (mb, sig, max_stack);
2513 mono_marshal_lock ();
2514 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2517 g_hash_table_insert (cache, key, res);
2518 mono_marshal_set_wrapper_info (res, info);
2519 mono_marshal_unlock ();
2523 mono_marshal_unlock ();
2524 mono_free_method (newm);
2532 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2533 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2536 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2540 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2543 int wrapper_type = wrapper->wrapper_type;
2546 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2549 info = mono_marshal_get_wrapper_info (wrapper);
2551 switch (wrapper_type) {
2552 case MONO_WRAPPER_REMOTING_INVOKE:
2553 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2554 case MONO_WRAPPER_XDOMAIN_INVOKE:
2555 m = info->d.remoting.method;
2556 if (wrapper->is_inflated) {
2560 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2561 * contains an uninflated method.
2563 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2564 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2568 case MONO_WRAPPER_SYNCHRONIZED:
2569 m = info->d.synchronized.method;
2570 if (wrapper->is_inflated) {
2573 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2574 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2578 case MONO_WRAPPER_UNBOX:
2579 return info->d.unbox.method;
2580 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2581 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2582 return info->d.managed_to_native.method;
2585 case MONO_WRAPPER_RUNTIME_INVOKE:
2586 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2587 return info->d.runtime_invoke.method;
2596 * mono_marshal_get_wrapper_info:
2598 * Retrieve the WrapperInfo structure associated with WRAPPER.
2601 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2603 g_assert (wrapper->wrapper_type);
2605 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2609 * mono_marshal_set_wrapper_info:
2611 * Set the WrapperInfo structure associated with the wrapper
2612 * method METHOD to INFO.
2615 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2619 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2622 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2627 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2631 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2632 info->subtype = subtype;
2637 * get_wrapper_target_class:
2639 * Return the class where a wrapper method should be placed.
2642 get_wrapper_target_class (MonoImage *image)
2649 * - can't put all wrappers into an mscorlib class, because they reference
2650 * metadata (signature) so they should be put into the same image as the
2651 * method they wrap, so they are unloaded together.
2652 * - putting them into a class with a type initalizer could cause the
2653 * initializer to be executed which can be a problem if the wrappers are
2655 * - putting them into an inflated class can cause problems if the the
2656 * class is deleted because it references an image which is unloaded.
2657 * To avoid these problems, we put the wrappers into the <Module> class of
2660 if (image_is_dynamic (image)) {
2661 klass = ((MonoDynamicImage*)image)->wrappers_type;
2663 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2664 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2672 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2673 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2677 * check_generic_wrapper_cache:
2679 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2680 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2681 * generic method definition.
2684 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2687 MonoMethod *inst, *def;
2688 MonoGenericContext *ctx;
2690 g_assert (orig_method->is_inflated);
2691 ctx = mono_method_get_context (orig_method);
2694 * Look for the instance
2696 res = mono_marshal_find_in_cache (cache, key);
2701 * Look for the definition
2703 def = mono_marshal_find_in_cache (cache, def_key);
2706 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2707 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2709 mono_memory_barrier ();
2710 mono_marshal_lock ();
2711 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2713 g_hash_table_insert (cache, key, inst);
2716 mono_marshal_unlock ();
2723 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2726 MonoMethod *inst, *res;
2729 * We use the same cache for the generic definition and the instances.
2731 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2732 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2733 mono_memory_barrier ();
2734 mono_marshal_lock ();
2735 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2737 g_hash_table_insert (cache, key, inst);
2740 mono_marshal_unlock ();
2745 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2749 MonoMethod *inst, *def;
2752 * Look for the instance
2754 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2759 * Look for the definition
2761 def = mono_marshal_find_in_cache (cache, def_method->klass);
2763 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2764 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2767 mono_memory_barrier ();
2768 mono_marshal_lock ();
2769 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2771 g_hash_table_insert (cache, orig_method->klass, inst);
2774 mono_marshal_unlock ();
2781 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2784 MonoMethod *inst, *res;
2787 * We use the same cache for the generic definition and the instances.
2789 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2790 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2792 mono_memory_barrier ();
2793 mono_marshal_lock ();
2794 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2796 g_hash_table_insert (cache, orig_method->klass, inst);
2799 mono_marshal_unlock ();
2804 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2806 MonoMethodSignature *sig;
2807 MonoMethodBuilder *mb;
2812 MonoGenericContext *ctx = NULL;
2813 MonoMethod *orig_method = NULL;
2815 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2816 !strcmp (method->name, "BeginInvoke"));
2819 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2821 if (method->is_inflated) {
2822 orig_method = method;
2823 ctx = &((MonoMethodInflated*)method)->context;
2824 method = ((MonoMethodInflated*)method)->declaring;
2827 sig = mono_signature_no_pinvoke (method);
2833 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2834 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2838 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2839 (GHashFunc)mono_signature_hash,
2840 (GCompareFunc)mono_metadata_signature_equal);
2841 if ((res = mono_marshal_find_in_cache (cache, sig)))
2845 g_assert (sig->hasthis);
2847 name = mono_signature_to_name (sig, "begin_invoke");
2849 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2851 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2855 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2857 mono_mb_emit_ldarg (mb, 0);
2858 mono_mb_emit_ldloc (mb, params_var);
2859 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2860 mono_mb_emit_byte (mb, CEE_RET);
2865 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2866 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2868 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2875 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2877 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2880 MonoDomain *domain = mono_domain_get ();
2881 MonoAsyncResult *ares;
2882 MonoMethod *method = NULL;
2883 MonoMethodSignature *sig;
2884 MonoMethodMessage *msg;
2885 MonoObject *res, *exc;
2886 MonoArray *out_args;
2889 g_assert (delegate);
2891 if (!delegate->method_info) {
2892 g_assert (delegate->method);
2893 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2894 if (!mono_error_ok (&error)) {
2895 mono_error_set_pending_exception (&error);
2898 MONO_OBJECT_SETREF (delegate, method_info, rm);
2901 if (!delegate->method_info || !delegate->method_info->method)
2902 g_assert_not_reached ();
2904 klass = delegate->object.vtable->klass;
2906 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2907 g_assert (method != NULL);
2909 sig = mono_signature_no_pinvoke (method);
2911 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2913 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2915 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2919 if (ares->async_delegate != (MonoObject*)delegate) {
2920 mono_set_pending_exception (mono_get_exception_invalid_operation (
2921 "The IAsyncResult object provided does not match this delegate."));
2925 #ifndef DISABLE_REMOTING
2926 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2927 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2928 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2929 if (!mono_error_ok (&error)) {
2930 mono_error_set_pending_exception (&error);
2933 mono_message_init (domain, msg, delegate->method_info, NULL);
2934 msg->call_type = CallType_EndInvoke;
2935 MONO_OBJECT_SETREF (msg, async_result, ares);
2936 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2937 if (!mono_error_ok (&error)) {
2938 mono_error_set_pending_exception (&error);
2944 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2948 if (((MonoException*)exc)->stack_trace) {
2949 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2951 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2953 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2956 mono_set_pending_exception ((MonoException*)exc);
2959 mono_method_return_message_restore (method, params, out_args);
2966 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2968 MonoType *t = mono_type_get_underlying_type (return_type);
2970 if (return_type->byref)
2971 return_type = &mono_defaults.int_class->byval_arg;
2974 case MONO_TYPE_VOID:
2975 g_assert_not_reached ();
2978 case MONO_TYPE_STRING:
2979 case MONO_TYPE_CLASS:
2980 case MONO_TYPE_OBJECT:
2981 case MONO_TYPE_ARRAY:
2982 case MONO_TYPE_SZARRAY:
2986 case MONO_TYPE_BOOLEAN:
2989 case MONO_TYPE_CHAR:
2999 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3000 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3002 case MONO_TYPE_GENERICINST:
3003 if (!mono_type_generic_inst_is_valuetype (t))
3006 case MONO_TYPE_VALUETYPE: {
3007 MonoClass *klass = mono_class_from_mono_type (return_type);
3008 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3009 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3013 case MONO_TYPE_MVAR: {
3014 MonoClass *klass = mono_class_from_mono_type (return_type);
3015 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3019 g_warning ("type 0x%x not handled", return_type->type);
3020 g_assert_not_reached ();
3023 mono_mb_emit_byte (mb, CEE_RET);
3026 #endif /* DISABLE_JIT */
3029 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3031 MonoMethodSignature *sig;
3032 MonoMethodBuilder *mb;
3037 MonoGenericContext *ctx = NULL;
3038 MonoMethod *orig_method = NULL;
3040 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3041 !strcmp (method->name, "EndInvoke"));
3044 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3046 if (method->is_inflated) {
3047 orig_method = method;
3048 ctx = &((MonoMethodInflated*)method)->context;
3049 method = ((MonoMethodInflated*)method)->declaring;
3052 sig = mono_signature_no_pinvoke (method);
3058 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3059 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3063 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3064 (GHashFunc)mono_signature_hash,
3065 (GCompareFunc)mono_metadata_signature_equal);
3066 if ((res = mono_marshal_find_in_cache (cache, sig)))
3070 g_assert (sig->hasthis);
3072 name = mono_signature_to_name (sig, "end_invoke");
3074 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3076 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3080 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3082 mono_mb_emit_ldarg (mb, 0);
3083 mono_mb_emit_ldloc (mb, params_var);
3084 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3086 if (sig->ret->type == MONO_TYPE_VOID) {
3087 mono_mb_emit_byte (mb, CEE_POP);
3088 mono_mb_emit_byte (mb, CEE_RET);
3090 mono_mb_emit_restore_result (mb, sig->ret);
3095 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3096 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3098 res = mono_mb_create_and_cache (cache, sig,
3099 mb, sig, sig->param_count + 16);
3108 MonoMethodSignature *sig;
3110 } SignaturePointerPair;
3113 signature_pointer_pair_hash (gconstpointer data)
3115 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3117 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3121 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3123 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3124 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3128 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3130 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3132 return pair->pointer == user_data;
3136 free_signature_pointer_pair (SignaturePointerPair *pair)
3142 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3144 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3146 MonoMethodBuilder *mb;
3149 gpointer cache_key = NULL;
3150 SignaturePointerPair key;
3151 SignaturePointerPair *new_key;
3152 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3153 int pos0, pos1, pos2;
3155 MonoClass *target_class = NULL;
3156 gboolean closed_over_null = FALSE;
3157 MonoGenericContext *ctx = NULL;
3158 MonoGenericContainer *container = NULL;
3159 MonoMethod *orig_method = NULL;
3161 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3165 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3166 !strcmp (method->name, "Invoke"));
3168 invoke_sig = sig = mono_signature_no_pinvoke (method);
3171 * If the delegate target is null, and the target method is not static, a virtual
3172 * call is made to that method with the first delegate argument as this. This is
3173 * a non-documented .NET feature.
3176 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3177 if (target_method->is_inflated) {
3179 MonoType *target_type;
3181 g_assert (method->signature->hasthis);
3182 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3183 mono_method_get_context (method), &error);
3184 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3185 target_class = mono_class_from_mono_type (target_type);
3187 target_class = target_method->klass;
3190 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3193 if (static_method_with_first_arg_bound) {
3194 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3195 g_assert (!callvirt);
3196 invoke_sig = mono_method_signature (target_method);
3200 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3202 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3203 orig_method = method;
3204 ctx = &((MonoMethodInflated*)method)->context;
3205 method = ((MonoMethodInflated*)method)->declaring;
3207 container = mono_method_get_generic_container (method);
3209 container = method->klass->generic_container;
3210 g_assert (container);
3212 invoke_sig = sig = mono_signature_no_pinvoke (method);
3219 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3220 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3223 cache_key = method->klass;
3224 } else if (static_method_with_first_arg_bound) {
3225 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3226 (GHashFunc)mono_signature_hash,
3227 (GCompareFunc)mono_metadata_signature_equal);
3229 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3231 res = mono_marshal_find_in_cache (cache, invoke_sig);
3234 cache_key = invoke_sig;
3235 } else if (callvirt) {
3236 GHashTable **cache_ptr;
3238 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3240 /* We need to cache the signature+method pair */
3241 mono_marshal_lock ();
3243 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3245 key.sig = invoke_sig;
3246 key.pointer = target_method;
3247 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3248 mono_marshal_unlock ();
3252 // Inflated methods should not be in this cache because it's not stored on the imageset.
3253 g_assert (!method->is_inflated);
3254 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3255 (GHashFunc)mono_signature_hash,
3256 (GCompareFunc)mono_metadata_signature_equal);
3257 res = mono_marshal_find_in_cache (cache, sig);
3263 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3264 static_sig->hasthis = 0;
3265 if (!static_method_with_first_arg_bound)
3266 invoke_sig = static_sig;
3268 if (static_method_with_first_arg_bound)
3269 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3270 else if (closed_over_null)
3271 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3273 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3275 name = mono_signature_to_name (invoke_sig, "invoke");
3277 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3279 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3283 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3285 /* allocate local 0 (object) */
3286 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3287 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3288 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3289 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3290 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3293 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3295 g_assert (sig->hasthis);
3298 * {type: sig->ret} res;
3299 * if (delegates == null) {
3300 * return this.<target> ( args .. );
3302 * int i = 0, len = this.delegates.Length;
3304 * res = this.delegates [i].Invoke ( args .. );
3305 * } while (++i < len);
3310 /* this wrapper can be used in unmanaged-managed transitions */
3311 emit_thread_interrupt_checkpoint (mb);
3313 /* delegates = this.delegates */
3314 mono_mb_emit_ldarg (mb, 0);
3315 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3316 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3317 mono_mb_emit_stloc (mb, local_delegates);
3320 /* if (delegates == null) */
3321 mono_mb_emit_ldloc (mb, local_delegates);
3322 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3324 /* return target.<target_method|method_ptr> ( args .. ); */
3326 /* target = d.target; */
3327 mono_mb_emit_ldarg (mb, 0);
3328 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3329 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3330 mono_mb_emit_stloc (mb, local_target);
3332 /*static methods with bound first arg can have null target and still be bound*/
3333 if (!static_method_with_first_arg_bound) {
3334 /* if target != null */
3335 mono_mb_emit_ldloc (mb, local_target);
3336 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3338 /* then call this->method_ptr nonstatic */
3341 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3343 mono_mb_emit_ldloc (mb, local_target);
3344 for (i = 0; i < sig->param_count; ++i)
3345 mono_mb_emit_ldarg (mb, i + 1);
3346 mono_mb_emit_ldarg (mb, 0);
3347 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3348 mono_mb_emit_byte (mb, CEE_LDIND_I);
3349 mono_mb_emit_ldarg (mb, 0);
3350 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3351 mono_mb_emit_byte (mb, CEE_LDIND_I);
3352 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3353 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3354 mono_mb_emit_byte (mb, CEE_RET);
3357 /* else [target == null] call this->method_ptr static */
3358 mono_mb_patch_branch (mb, pos0);
3362 if (!closed_over_null) {
3363 if (target_class->valuetype) {
3364 mono_mb_emit_ldarg (mb, 1);
3365 for (i = 1; i < sig->param_count; ++i)
3366 mono_mb_emit_ldarg (mb, i + 1);
3367 mono_mb_emit_op (mb, CEE_CALL, target_method);
3369 mono_mb_emit_ldarg (mb, 1);
3370 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3371 for (i = 1; i < sig->param_count; ++i)
3372 mono_mb_emit_ldarg (mb, i + 1);
3373 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3376 mono_mb_emit_byte (mb, CEE_LDNULL);
3377 for (i = 0; i < sig->param_count; ++i)
3378 mono_mb_emit_ldarg (mb, i + 1);
3379 mono_mb_emit_op (mb, CEE_CALL, target_method);
3382 if (static_method_with_first_arg_bound) {
3383 mono_mb_emit_ldloc (mb, local_target);
3384 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3385 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3387 for (i = 0; i < sig->param_count; ++i)
3388 mono_mb_emit_ldarg (mb, i + 1);
3389 mono_mb_emit_ldarg (mb, 0);
3390 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3391 mono_mb_emit_byte (mb, CEE_LDIND_I);
3392 mono_mb_emit_ldarg (mb, 0);
3393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3394 mono_mb_emit_byte (mb, CEE_LDIND_I);
3395 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3396 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3399 mono_mb_emit_byte (mb, CEE_RET);
3401 /* else [delegates != null] */
3402 mono_mb_patch_branch (mb, pos2);
3404 /* len = delegates.Length; */
3405 mono_mb_emit_ldloc (mb, local_delegates);
3406 mono_mb_emit_byte (mb, CEE_LDLEN);
3407 mono_mb_emit_byte (mb, CEE_CONV_I4);
3408 mono_mb_emit_stloc (mb, local_len);
3411 mono_mb_emit_icon (mb, 0);
3412 mono_mb_emit_stloc (mb, local_i);
3414 pos1 = mono_mb_get_label (mb);
3416 /* d = delegates [i]; */
3417 mono_mb_emit_ldloc (mb, local_delegates);
3418 mono_mb_emit_ldloc (mb, local_i);
3419 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3420 mono_mb_emit_stloc (mb, local_d);
3422 /* res = d.Invoke ( args .. ); */
3423 mono_mb_emit_ldloc (mb, local_d);
3424 for (i = 0; i < sig->param_count; i++)
3425 mono_mb_emit_ldarg (mb, i + 1);
3427 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3430 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3431 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3434 mono_mb_emit_stloc (mb, local_res);
3437 mono_mb_emit_add_to_local (mb, local_i, 1);
3440 mono_mb_emit_ldloc (mb, local_i);
3441 mono_mb_emit_ldloc (mb, local_len);
3442 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3446 mono_mb_emit_ldloc (mb, local_res);
3447 mono_mb_emit_byte (mb, CEE_RET);
3449 mb->skip_visibility = 1;
3450 #endif /* DISABLE_JIT */
3452 info = mono_wrapper_info_create (mb, subtype);
3457 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3458 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3459 } else if (callvirt) {
3460 new_key = g_new0 (SignaturePointerPair, 1);
3463 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3467 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3471 /* mono_method_print_code (res); */
3477 * the returned method invokes all methods in a multicast delegate.
3480 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3482 gboolean callvirt = FALSE;
3483 gboolean static_method_with_first_arg_bound = FALSE;
3484 MonoMethod *target_method = NULL;
3485 MonoMethodSignature *sig;
3487 sig = mono_signature_no_pinvoke (method);
3489 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3491 target_method = del->method;
3494 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3495 static_method_with_first_arg_bound = TRUE;
3496 target_method = del->method;
3499 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3503 MonoMethodSignature *ctor_sig;
3504 MonoMethodSignature *sig;
3507 /* protected by the marshal lock, contains CtorSigPair pointers */
3508 static GSList *strsig_list = NULL;
3510 static MonoMethodSignature *
3511 lookup_string_ctor_signature (MonoMethodSignature *sig)
3513 MonoMethodSignature *callsig;
3517 mono_marshal_lock ();
3519 for (item = strsig_list; item; item = item->next) {
3520 cs = (CtorSigPair *)item->data;
3521 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3522 * because it is lock-free.
3524 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3529 mono_marshal_unlock ();
3533 static MonoMethodSignature *
3534 add_string_ctor_signature (MonoMethod *method)
3536 MonoMethodSignature *callsig;
3539 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3540 callsig->ret = &mono_defaults.string_class->byval_arg;
3541 cs = g_new (CtorSigPair, 1);
3543 cs->ctor_sig = mono_method_signature (method);
3545 mono_marshal_lock ();
3546 strsig_list = g_slist_prepend (strsig_list, cs);
3547 mono_marshal_unlock ();
3552 * mono_marshal_get_string_ctor_signature:
3554 * Return the modified signature used by string ctors (they return the newly created
3557 MonoMethodSignature*
3558 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3560 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3562 sig = add_string_ctor_signature (method);
3568 get_runtime_invoke_type (MonoType *t, gboolean ret)
3571 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3573 /* Can't share this with 'I' as that needs another indirection */
3574 return &mono_defaults.int_class->this_arg;
3577 if (MONO_TYPE_IS_REFERENCE (t))
3578 return &mono_defaults.object_class->byval_arg;
3581 /* The result needs to be boxed */
3586 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3589 return &mono_defaults.sbyte_class->byval_arg;
3591 return &mono_defaults.int16_class->byval_arg;
3593 return &mono_defaults.int32_class->byval_arg;
3596 return &mono_defaults.int64_class->byval_arg;
3597 case MONO_TYPE_BOOLEAN:
3598 return &mono_defaults.byte_class->byval_arg;
3599 case MONO_TYPE_CHAR:
3600 return &mono_defaults.uint16_class->byval_arg;
3602 return &mono_defaults.int_class->byval_arg;
3603 case MONO_TYPE_VALUETYPE:
3604 if (t->data.klass->enumtype) {
3605 t = mono_class_enum_basetype (t->data.klass);
3615 * mono_marshal_get_runtime_invoke_sig:
3617 * Return a common signature used for sharing runtime invoke wrappers.
3619 static MonoMethodSignature*
3620 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3622 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3625 res->generic_param_count = 0;
3626 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3627 for (i = 0; i < res->param_count; ++i)
3628 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3634 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3636 /* Can't share wrappers which return a vtype since it needs to be boxed */
3637 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))
3640 return mono_metadata_signature_equal (sig1, sig2);
3648 * Emit the call to the wrapper method from a runtime invoke wrapper.
3651 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3652 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3654 gboolean virtual_, gboolean need_direct_wrapper)
3656 static MonoString *string_dummy = NULL;
3658 int *tmp_nullable_locals;
3659 gboolean void_ret = FALSE;
3660 gboolean string_ctor = method && method->string_ctor;
3662 /* to make it work with our special string constructors */
3663 if (!string_dummy) {
3664 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3665 string_dummy = mono_string_new_wrapper ("dummy");
3669 g_assert (sig->hasthis);
3670 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3675 if (mono_gc_is_moving ()) {
3676 mono_mb_emit_ptr (mb, &string_dummy);
3677 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3679 mono_mb_emit_ptr (mb, string_dummy);
3682 mono_mb_emit_ldarg (mb, 0);
3686 tmp_nullable_locals = g_new0 (int, sig->param_count);
3688 for (i = 0; i < sig->param_count; i++) {
3689 MonoType *t = sig->params [i];
3692 mono_mb_emit_ldarg (mb, 1);
3694 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3695 mono_mb_emit_byte (mb, CEE_ADD);
3699 mono_mb_emit_byte (mb, CEE_LDIND_I);
3700 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3701 * So to make this work we unbox it to a local variablee and push a reference to that.
3703 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3704 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3706 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3707 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3708 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3713 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3714 type = sig->params [i]->type;
3718 case MONO_TYPE_BOOLEAN:
3722 case MONO_TYPE_CHAR:
3731 mono_mb_emit_byte (mb, CEE_LDIND_I);
3732 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3734 case MONO_TYPE_STRING:
3735 case MONO_TYPE_CLASS:
3736 case MONO_TYPE_ARRAY:
3738 case MONO_TYPE_SZARRAY:
3739 case MONO_TYPE_OBJECT:
3740 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3742 case MONO_TYPE_GENERICINST:
3743 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3744 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3749 case MONO_TYPE_VALUETYPE:
3750 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3751 type = mono_class_enum_basetype (t->data.klass)->type;
3754 mono_mb_emit_byte (mb, CEE_LDIND_I);
3755 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3756 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3757 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3758 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3760 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3764 g_assert_not_reached ();
3769 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3770 } else if (need_direct_wrapper) {
3771 mono_mb_emit_op (mb, CEE_CALL, method);
3773 mono_mb_emit_ldarg (mb, 3);
3774 mono_mb_emit_calli (mb, callsig);
3777 if (sig->ret->byref) {
3779 g_assert_not_reached ();
3782 switch (sig->ret->type) {
3783 case MONO_TYPE_VOID:
3787 case MONO_TYPE_BOOLEAN:
3788 case MONO_TYPE_CHAR:
3801 case MONO_TYPE_VALUETYPE:
3802 case MONO_TYPE_TYPEDBYREF:
3803 case MONO_TYPE_GENERICINST:
3804 /* box value types */
3805 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3807 case MONO_TYPE_STRING:
3808 case MONO_TYPE_CLASS:
3809 case MONO_TYPE_ARRAY:
3810 case MONO_TYPE_SZARRAY:
3811 case MONO_TYPE_OBJECT:
3815 /* The result is an IntPtr */
3816 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3819 g_assert_not_reached ();
3823 mono_mb_emit_stloc (mb, loc_res);
3825 /* Convert back nullable-byref arguments */
3826 for (i = 0; i < sig->param_count; i++) {
3827 MonoType *t = sig->params [i];
3830 * Box the result and put it back into the array, the caller will have
3831 * to obtain it from there.
3833 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3834 mono_mb_emit_ldarg (mb, 1);
3835 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3836 mono_mb_emit_byte (mb, CEE_ADD);
3838 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3839 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3841 mono_mb_emit_byte (mb, CEE_STIND_REF);
3845 g_free (tmp_nullable_locals);
3849 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3850 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3851 gboolean virtual_, gboolean need_direct_wrapper)
3854 MonoExceptionClause *clause;
3855 int loc_res, loc_exc;
3857 /* The wrapper looks like this:
3863 * } catch (Exception e) {
3871 /* allocate local 0 (object) tmp */
3872 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3873 /* allocate local 1 (object) exc */
3874 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3876 /* *exc is assumed to be initialized to NULL by the caller */
3878 mono_mb_emit_byte (mb, CEE_LDARG_2);
3879 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3884 labels [1] = mono_mb_get_label (mb);
3885 emit_thread_force_interrupt_checkpoint (mb);
3886 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3888 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3890 /* Add a try clause around the call */
3891 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3892 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3893 clause->data.catch_class = mono_defaults.exception_class;
3894 clause->try_offset = labels [1];
3895 clause->try_len = mono_mb_get_label (mb) - labels [1];
3897 clause->handler_offset = mono_mb_get_label (mb);
3900 mono_mb_emit_stloc (mb, loc_exc);
3901 mono_mb_emit_byte (mb, CEE_LDARG_2);
3902 mono_mb_emit_ldloc (mb, loc_exc);
3903 mono_mb_emit_byte (mb, CEE_STIND_REF);
3905 mono_mb_emit_branch (mb, CEE_LEAVE);
3907 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3909 mono_mb_set_clauses (mb, 1, clause);
3911 mono_mb_patch_branch (mb, labels [2]);
3912 mono_mb_emit_ldloc (mb, loc_res);
3913 mono_mb_emit_byte (mb, CEE_RET);
3918 mono_mb_patch_branch (mb, labels [0]);
3919 emit_thread_force_interrupt_checkpoint (mb);
3920 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3922 mono_mb_emit_ldloc (mb, 0);
3923 mono_mb_emit_byte (mb, CEE_RET);
3928 * generates IL code for the runtime invoke function
3929 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3931 * we also catch exceptions if exc != null
3932 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3933 * it means that the compiled code for METHOD does not have to be looked up
3934 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3935 * its METHOD argument.
3938 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3940 MonoMethodSignature *sig, *csig, *callsig;
3941 MonoMethodBuilder *mb;
3942 GHashTable *cache = NULL;
3943 MonoClass *target_klass;
3944 MonoMethod *res = NULL;
3945 static MonoMethodSignature *cctor_signature = NULL;
3946 static MonoMethodSignature *finalize_signature = NULL;
3948 const char *param_names [16];
3949 gboolean need_direct_wrapper = FALSE;
3954 if (!cctor_signature) {
3955 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3956 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3958 if (!finalize_signature) {
3959 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3960 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3961 finalize_signature->hasthis = 1;
3965 need_direct_wrapper = TRUE;
3968 * Use a separate cache indexed by methods to speed things up and to avoid the
3969 * boundless mempool growth caused by the signature_dup stuff below.
3972 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3974 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3976 res = mono_marshal_find_in_cache (cache, method);
3980 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3981 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3983 * Array Get/Set/Address methods. The JIT implements them using inline code
3984 * so we need to create an invoke wrapper which calls the method directly.
3986 need_direct_wrapper = TRUE;
3989 if (method->string_ctor) {
3990 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3992 callsig = add_string_ctor_signature (method);
3993 /* Can't share this as we push a string as this */
3994 need_direct_wrapper = TRUE;
3996 if (method_is_dynamic (method))
3997 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3999 callsig = mono_method_signature (method);
4002 sig = mono_method_signature (method);
4004 target_klass = get_wrapper_target_class (method->klass->image);
4006 /* Try to share wrappers for non-corlib methods with simple signatures */
4007 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4008 callsig = cctor_signature;
4009 target_klass = mono_defaults.object_class;
4010 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4011 callsig = finalize_signature;
4012 target_klass = mono_defaults.object_class;
4015 if (need_direct_wrapper) {
4016 /* Already searched at the start */
4018 MonoMethodSignature *tmp_sig;
4020 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4021 GHashTable **cache_table = NULL;
4023 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4024 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4026 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4028 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4029 (GCompareFunc)runtime_invoke_signature_equal);
4031 /* from mono_marshal_find_in_cache */
4032 mono_marshal_lock ();
4033 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4034 mono_marshal_unlock ();
4041 /* Make a copy of the signature from the image mempool */
4043 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4047 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4049 csig->ret = &mono_defaults.object_class->byval_arg;
4050 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4051 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4053 csig->params [0] = &mono_defaults.object_class->byval_arg;
4054 csig->params [1] = &mono_defaults.int_class->byval_arg;
4055 csig->params [2] = &mono_defaults.int_class->byval_arg;
4056 csig->params [3] = &mono_defaults.int_class->byval_arg;
4059 /* This is called from runtime code so it has to be cdecl */
4060 csig->call_convention = MONO_CALL_C;
4063 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4064 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4068 param_names [0] = "this";
4069 param_names [1] = "params";
4070 param_names [2] = "exc";
4071 param_names [3] = "method";
4072 mono_mb_set_param_names (mb, param_names);
4074 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4077 if (need_direct_wrapper) {
4079 mb->skip_visibility = 1;
4081 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4082 info->d.runtime_invoke.method = method;
4083 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4085 /* taken from mono_mb_create_and_cache */
4086 mono_marshal_lock ();
4087 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4088 mono_marshal_unlock ();
4090 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4091 info->d.runtime_invoke.sig = callsig;
4093 /* Somebody may have created it before us */
4096 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4098 mono_marshal_lock ();
4099 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4101 GHashTable *direct_cache;
4103 g_hash_table_insert (cache, callsig, res);
4104 /* Can't insert it into wrapper_hash since the key is a signature */
4105 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4107 g_hash_table_insert (direct_cache, method, res);
4109 mono_free_method (newm);
4111 mono_marshal_unlock ();
4114 /* end mono_mb_create_and_cache */
4123 * mono_marshal_get_runtime_invoke_dynamic:
4125 * Return a method which can be used to invoke managed methods from native code
4127 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4128 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4129 * ARGS should point to an architecture specific structure containing
4130 * the arguments and space for the return value.
4131 * The other arguments are the same as for runtime_invoke (), except that
4132 * ARGS should contain the this argument too.
4133 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4134 * is only one copy of it, which is useful in full-aot.
4135 * The wrapper info for the wrapper is a WrapperInfo structure.
4138 mono_marshal_get_runtime_invoke_dynamic (void)
4140 static MonoMethod *method;
4141 MonoMethodSignature *csig;
4142 MonoExceptionClause *clause;
4143 MonoMethodBuilder *mb;
4151 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4153 csig->ret = &mono_defaults.void_class->byval_arg;
4154 csig->params [0] = &mono_defaults.int_class->byval_arg;
4155 csig->params [1] = &mono_defaults.int_class->byval_arg;
4156 csig->params [2] = &mono_defaults.int_class->byval_arg;
4157 csig->params [3] = &mono_defaults.int_class->byval_arg;
4159 name = g_strdup ("runtime_invoke_dynamic");
4160 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4164 /* allocate local 0 (object) tmp */
4165 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4166 /* allocate local 1 (object) exc */
4167 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4169 /* cond set *exc to null */
4170 mono_mb_emit_byte (mb, CEE_LDARG_1);
4171 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4172 mono_mb_emit_byte (mb, 3);
4173 mono_mb_emit_byte (mb, CEE_LDARG_1);
4174 mono_mb_emit_byte (mb, CEE_LDNULL);
4175 mono_mb_emit_byte (mb, CEE_STIND_REF);
4177 emit_thread_force_interrupt_checkpoint (mb);
4179 mono_mb_emit_byte (mb, CEE_LDARG_0);
4180 mono_mb_emit_byte (mb, CEE_LDARG_2);
4181 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4182 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4184 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4186 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4187 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4188 clause->try_len = mono_mb_get_label (mb);
4191 clause->data.filter_offset = mono_mb_get_label (mb);
4193 mono_mb_emit_byte (mb, CEE_POP);
4194 mono_mb_emit_byte (mb, CEE_LDARG_1);
4195 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4196 mono_mb_emit_byte (mb, CEE_PREFIX1);
4197 mono_mb_emit_byte (mb, CEE_CGT_UN);
4198 mono_mb_emit_byte (mb, CEE_PREFIX1);
4199 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4201 clause->handler_offset = mono_mb_get_label (mb);
4204 /* store exception */
4205 mono_mb_emit_stloc (mb, 1);
4207 mono_mb_emit_byte (mb, CEE_LDARG_1);
4208 mono_mb_emit_ldloc (mb, 1);
4209 mono_mb_emit_byte (mb, CEE_STIND_REF);
4211 mono_mb_emit_byte (mb, CEE_LDNULL);
4212 mono_mb_emit_stloc (mb, 0);
4214 /* Check for the abort exception */
4215 mono_mb_emit_ldloc (mb, 1);
4216 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4217 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4219 /* Delay the abort exception */
4220 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4222 mono_mb_patch_short_branch (mb, posna);
4223 mono_mb_emit_branch (mb, CEE_LEAVE);
4225 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4227 mono_mb_set_clauses (mb, 1, clause);
4230 mono_mb_patch_branch (mb, pos);
4231 //mono_mb_emit_ldloc (mb, 0);
4232 mono_mb_emit_byte (mb, CEE_RET);
4233 #endif /* DISABLE_JIT */
4235 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4237 mono_marshal_lock ();
4238 /* double-checked locking */
4240 method = mono_mb_create (mb, csig, 16, info);
4242 mono_marshal_unlock ();
4250 * mono_marshal_get_runtime_invoke_for_sig:
4252 * Return a runtime invoke wrapper for a given signature.
4255 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4257 MonoMethodSignature *csig, *callsig;
4258 MonoMethodBuilder *mb;
4260 GHashTable *cache = NULL;
4261 GHashTable **cache_table = NULL;
4262 MonoMethod *res = NULL;
4264 const char *param_names [16];
4267 /* A simplified version of mono_marshal_get_runtime_invoke */
4269 image = mono_defaults.corlib;
4271 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4273 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4275 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4276 (GCompareFunc)runtime_invoke_signature_equal);
4278 /* from mono_marshal_find_in_cache */
4279 mono_marshal_lock ();
4280 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4281 mono_marshal_unlock ();
4288 /* Make a copy of the signature from the image mempool */
4289 callsig = mono_metadata_signature_dup_full (image, callsig);
4291 csig = mono_metadata_signature_alloc (image, 4);
4292 csig->ret = &mono_defaults.object_class->byval_arg;
4293 csig->params [0] = &mono_defaults.object_class->byval_arg;
4294 csig->params [1] = &mono_defaults.int_class->byval_arg;
4295 csig->params [2] = &mono_defaults.int_class->byval_arg;
4296 csig->params [3] = &mono_defaults.int_class->byval_arg;
4299 /* This is called from runtime code so it has to be cdecl */
4300 csig->call_convention = MONO_CALL_C;
4303 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4304 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4308 param_names [0] = "this";
4309 param_names [1] = "params";
4310 param_names [2] = "exc";
4311 param_names [3] = "method";
4312 mono_mb_set_param_names (mb, param_names);
4314 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4317 /* taken from mono_mb_create_and_cache */
4318 mono_marshal_lock ();
4319 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4320 mono_marshal_unlock ();
4322 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4323 info->d.runtime_invoke.sig = callsig;
4325 /* Somebody may have created it before us */
4328 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4330 mono_marshal_lock ();
4331 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4334 g_hash_table_insert (cache, callsig, res);
4336 mono_free_method (newm);
4338 mono_marshal_unlock ();
4341 /* end mono_mb_create_and_cache */
4350 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4352 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4353 klass->name_space, klass->name);
4355 mono_mb_emit_exception_marshal_directive (mb, msg);
4360 * generates IL code for the icall wrapper (the generated method
4361 * calls the unmanaged code in func)
4362 * The wrapper info for the wrapper is a WrapperInfo structure.
4365 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4367 MonoMethodSignature *csig, *csig2;
4368 MonoMethodBuilder *mb;
4373 g_assert (sig->pinvoke);
4375 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4377 mb->method->save_lmf = 1;
4379 /* Add an explicit this argument */
4381 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4383 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4387 mono_mb_emit_byte (mb, CEE_LDARG_0);
4389 for (i = 0; i < sig->param_count; i++)
4390 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4393 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4394 mono_mb_emit_calli (mb, csig2);
4395 if (check_exceptions)
4396 emit_thread_interrupt_checkpoint (mb);
4397 mono_mb_emit_byte (mb, CEE_RET);
4400 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4402 if (csig->call_convention == MONO_CALL_VARARG)
4403 csig->call_convention = 0;
4405 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4406 info->d.icall.func = (gpointer)func;
4407 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4414 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4415 MonoMarshalSpec *spec,
4416 int conv_arg, MonoType **conv_arg_type,
4417 MarshalAction action)
4420 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4421 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4427 static MonoClass *ICustomMarshaler = NULL;
4428 static MonoMethod *cleanup_native, *cleanup_managed;
4429 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4430 MonoMethod *get_instance = NULL;
4431 MonoMethodBuilder *mb = m->mb;
4432 char *exception_msg = NULL;
4436 if (!ICustomMarshaler) {
4437 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4439 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4440 goto handle_exception;
4443 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4444 g_assert (cleanup_native);
4445 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4446 g_assert (cleanup_managed);
4447 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4448 g_assert (marshal_managed_to_native);
4449 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4450 g_assert (marshal_native_to_managed);
4452 mono_memory_barrier ();
4453 ICustomMarshaler = klass;
4456 if (spec->data.custom_data.image)
4457 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4459 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4460 g_assert (mtype != NULL);
4461 mono_error_assert_ok (&error);
4462 mklass = mono_class_from_mono_type (mtype);
4463 g_assert (mklass != NULL);
4465 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4466 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4468 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4470 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4471 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4472 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4473 (get_sig->params [0]->type != MONO_TYPE_STRING))
4474 get_instance = NULL;
4478 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);
4481 /* Throw exception and emit compensation code if neccesary */
4482 if (exception_msg) {
4484 case MARSHAL_ACTION_CONV_IN:
4485 case MARSHAL_ACTION_CONV_RESULT:
4486 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4487 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4488 mono_mb_emit_byte (mb, CEE_POP);
4490 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4491 g_free (exception_msg);
4494 case MARSHAL_ACTION_PUSH:
4495 mono_mb_emit_byte (mb, CEE_LDNULL);
4503 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4504 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4507 case MARSHAL_ACTION_CONV_IN:
4509 case MONO_TYPE_CLASS:
4510 case MONO_TYPE_OBJECT:
4511 case MONO_TYPE_STRING:
4512 case MONO_TYPE_ARRAY:
4513 case MONO_TYPE_SZARRAY:
4514 case MONO_TYPE_VALUETYPE:
4518 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4519 g_assert_not_reached ();
4523 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4525 mono_mb_emit_byte (mb, CEE_LDNULL);
4526 mono_mb_emit_stloc (mb, conv_arg);
4528 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4531 /* Minic MS.NET behavior */
4532 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4535 /* Check for null */
4536 mono_mb_emit_ldarg (mb, argnum);
4538 mono_mb_emit_byte (mb, CEE_LDIND_I);
4539 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4541 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4543 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4545 mono_mb_emit_ldarg (mb, argnum);
4547 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4549 if (t->type == MONO_TYPE_VALUETYPE) {
4551 * Since we can't determine the type of the argument, we
4552 * will assume the unmanaged function takes a pointer.
4554 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4556 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4559 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4560 mono_mb_emit_stloc (mb, conv_arg);
4562 mono_mb_patch_branch (mb, pos2);
4565 case MARSHAL_ACTION_CONV_OUT:
4566 /* Check for null */
4567 mono_mb_emit_ldloc (mb, conv_arg);
4568 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4571 mono_mb_emit_ldarg (mb, argnum);
4573 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4575 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4577 mono_mb_emit_ldloc (mb, conv_arg);
4578 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4579 mono_mb_emit_byte (mb, CEE_STIND_REF);
4580 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4581 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4583 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4585 mono_mb_emit_ldloc (mb, conv_arg);
4586 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4588 /* We have nowhere to store the result */
4589 mono_mb_emit_byte (mb, CEE_POP);
4592 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4594 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4596 mono_mb_emit_ldloc (mb, conv_arg);
4598 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4600 mono_mb_patch_branch (mb, pos2);
4603 case MARSHAL_ACTION_PUSH:
4605 mono_mb_emit_ldloc_addr (mb, conv_arg);
4607 mono_mb_emit_ldloc (mb, conv_arg);
4610 case MARSHAL_ACTION_CONV_RESULT:
4611 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4613 mono_mb_emit_stloc (mb, 3);
4615 mono_mb_emit_ldloc (mb, 3);
4616 mono_mb_emit_stloc (mb, loc1);
4618 /* Check for null */
4619 mono_mb_emit_ldloc (mb, 3);
4620 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4622 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4624 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4625 mono_mb_emit_byte (mb, CEE_DUP);
4627 mono_mb_emit_ldloc (mb, 3);
4628 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4629 mono_mb_emit_stloc (mb, 3);
4631 mono_mb_emit_ldloc (mb, loc1);
4632 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4634 mono_mb_patch_branch (mb, pos2);
4637 case MARSHAL_ACTION_MANAGED_CONV_IN:
4638 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4640 mono_mb_emit_byte (mb, CEE_LDNULL);
4641 mono_mb_emit_stloc (mb, conv_arg);
4643 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4646 /* Check for null */
4647 mono_mb_emit_ldarg (mb, argnum);
4649 mono_mb_emit_byte (mb, CEE_LDIND_I);
4650 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4652 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4653 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4655 mono_mb_emit_ldarg (mb, argnum);
4657 mono_mb_emit_byte (mb, CEE_LDIND_I);
4659 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4660 mono_mb_emit_stloc (mb, conv_arg);
4662 mono_mb_patch_branch (mb, pos2);
4665 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4666 g_assert (!t->byref);
4668 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4670 mono_mb_emit_stloc (mb, 3);
4672 mono_mb_emit_ldloc (mb, 3);
4673 mono_mb_emit_stloc (mb, loc1);
4675 /* Check for null */
4676 mono_mb_emit_ldloc (mb, 3);
4677 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4679 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4680 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4681 mono_mb_emit_byte (mb, CEE_DUP);
4683 mono_mb_emit_ldloc (mb, 3);
4684 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4685 mono_mb_emit_stloc (mb, 3);
4687 mono_mb_emit_ldloc (mb, loc1);
4688 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4690 mono_mb_patch_branch (mb, pos2);
4693 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4695 /* Check for null */
4696 mono_mb_emit_ldloc (mb, conv_arg);
4697 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4700 mono_mb_emit_ldarg (mb, argnum);
4702 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4704 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4706 mono_mb_emit_ldloc (mb, conv_arg);
4707 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4708 mono_mb_emit_byte (mb, CEE_STIND_I);
4711 /* Call CleanUpManagedData */
4712 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4714 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4716 mono_mb_emit_ldloc (mb, conv_arg);
4717 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4719 mono_mb_patch_branch (mb, pos2);
4723 g_assert_not_reached ();
4731 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4732 MonoMarshalSpec *spec,
4733 int conv_arg, MonoType **conv_arg_type,
4734 MarshalAction action)
4737 MonoMethodBuilder *mb = m->mb;
4740 case MARSHAL_ACTION_CONV_IN: {
4741 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4743 g_assert (t->type == MONO_TYPE_OBJECT);
4744 g_assert (!t->byref);
4746 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4747 mono_mb_emit_ldarg (mb, argnum);
4748 mono_mb_emit_icon (mb, encoding);
4749 mono_mb_emit_icon (mb, t->attrs);
4750 mono_mb_emit_icall (mb, mono_marshal_asany);
4751 mono_mb_emit_stloc (mb, conv_arg);
4755 case MARSHAL_ACTION_PUSH:
4756 mono_mb_emit_ldloc (mb, conv_arg);
4759 case MARSHAL_ACTION_CONV_OUT: {
4760 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4762 mono_mb_emit_ldarg (mb, argnum);
4763 mono_mb_emit_ldloc (mb, conv_arg);
4764 mono_mb_emit_icon (mb, encoding);
4765 mono_mb_emit_icon (mb, t->attrs);
4766 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4771 g_assert_not_reached ();
4778 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4779 MonoMarshalSpec *spec,
4780 int conv_arg, MonoType **conv_arg_type,
4781 MarshalAction action)
4784 MonoMethodBuilder *mb = m->mb;
4785 MonoClass *klass, *date_time_class;
4788 klass = mono_class_from_mono_type (t);
4790 date_time_class = mono_class_get_date_time_class ();
4793 case MARSHAL_ACTION_CONV_IN:
4794 if (klass == date_time_class) {
4795 /* Convert it to an OLE DATE type */
4796 static MonoMethod *to_oadate;
4799 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4800 g_assert (to_oadate);
4802 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4805 mono_mb_emit_ldarg (mb, argnum);
4806 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4809 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4811 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4813 mono_mb_emit_ldarg_addr (mb, argnum);
4814 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4815 mono_mb_emit_stloc (mb, conv_arg);
4819 mono_mb_patch_branch (mb, pos);
4823 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4824 klass->blittable || klass->enumtype)
4827 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4829 /* store the address of the source into local variable 0 */
4831 mono_mb_emit_ldarg (mb, argnum);
4833 mono_mb_emit_ldarg_addr (mb, argnum);
4835 mono_mb_emit_stloc (mb, 0);
4837 /* allocate space for the native struct and
4838 * store the address into local variable 1 (dest) */
4839 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4840 mono_mb_emit_byte (mb, CEE_PREFIX1);
4841 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4842 mono_mb_emit_stloc (mb, conv_arg);
4845 mono_mb_emit_ldloc (mb, 0);
4846 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4849 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4851 mono_mb_emit_ldloc (mb, conv_arg);
4852 mono_mb_emit_stloc (mb, 1);
4854 /* emit valuetype conversion code */
4855 emit_struct_conv (mb, klass, FALSE);
4859 mono_mb_patch_branch (mb, pos);
4862 case MARSHAL_ACTION_PUSH:
4863 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4865 g_assert (!t->byref);
4867 /* Have to change the signature since the vtype is passed byref */
4868 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4870 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4871 klass->blittable || klass->enumtype)
4872 mono_mb_emit_ldarg_addr (mb, argnum);
4874 mono_mb_emit_ldloc (mb, conv_arg);
4878 if (klass == date_time_class) {
4880 mono_mb_emit_ldloc_addr (mb, conv_arg);
4882 mono_mb_emit_ldloc (mb, conv_arg);
4886 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4887 klass->blittable || klass->enumtype) {
4888 mono_mb_emit_ldarg (mb, argnum);
4891 mono_mb_emit_ldloc (mb, conv_arg);
4893 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4894 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4898 case MARSHAL_ACTION_CONV_OUT:
4899 if (klass == date_time_class) {
4900 /* Convert from an OLE DATE type */
4901 static MonoMethod *from_oadate;
4906 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4908 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4909 g_assert (from_oadate);
4911 mono_mb_emit_ldarg (mb, argnum);
4912 mono_mb_emit_ldloc (mb, conv_arg);
4913 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4914 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4919 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4920 klass->blittable || klass->enumtype)
4924 /* dst = argument */
4925 mono_mb_emit_ldarg (mb, argnum);
4926 mono_mb_emit_stloc (mb, 1);
4928 mono_mb_emit_ldloc (mb, 1);
4929 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4931 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4932 /* src = tmp_locals [i] */
4933 mono_mb_emit_ldloc (mb, conv_arg);
4934 mono_mb_emit_stloc (mb, 0);
4936 /* emit valuetype conversion code */
4937 emit_struct_conv (mb, klass, TRUE);
4941 emit_struct_free (mb, klass, conv_arg);
4944 mono_mb_patch_branch (mb, pos);
4947 case MARSHAL_ACTION_CONV_RESULT:
4948 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4950 mono_mb_emit_stloc (mb, 3);
4954 /* load pointer to returned value type */
4955 g_assert (m->vtaddr_var);
4956 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4957 /* store the address of the source into local variable 0 */
4958 mono_mb_emit_stloc (mb, 0);
4960 mono_mb_emit_ldloc_addr (mb, 3);
4961 mono_mb_emit_stloc (mb, 1);
4963 /* emit valuetype conversion code */
4964 emit_struct_conv (mb, klass, TRUE);
4967 case MARSHAL_ACTION_MANAGED_CONV_IN:
4968 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4969 klass->blittable || klass->enumtype) {
4974 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4976 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4980 mono_mb_emit_ldarg (mb, argnum);
4982 mono_mb_emit_ldarg_addr (mb, argnum);
4983 mono_mb_emit_stloc (mb, 0);
4986 mono_mb_emit_ldloc (mb, 0);
4987 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4990 mono_mb_emit_ldloc_addr (mb, conv_arg);
4991 mono_mb_emit_stloc (mb, 1);
4993 /* emit valuetype conversion code */
4994 emit_struct_conv (mb, klass, TRUE);
4997 mono_mb_patch_branch (mb, pos);
5000 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5001 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5002 klass->blittable || klass->enumtype) {
5006 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5009 /* Check for null */
5010 mono_mb_emit_ldarg (mb, argnum);
5011 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5014 mono_mb_emit_ldloc_addr (mb, conv_arg);
5015 mono_mb_emit_stloc (mb, 0);
5018 mono_mb_emit_ldarg (mb, argnum);
5019 mono_mb_emit_stloc (mb, 1);
5021 /* emit valuetype conversion code */
5022 emit_struct_conv (mb, klass, FALSE);
5024 mono_mb_patch_branch (mb, pos2);
5027 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5028 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5029 klass->blittable || klass->enumtype) {
5030 mono_mb_emit_stloc (mb, 3);
5035 /* load pointer to returned value type */
5036 g_assert (m->vtaddr_var);
5037 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5039 /* store the address of the source into local variable 0 */
5040 mono_mb_emit_stloc (mb, 0);
5041 /* allocate space for the native struct and
5042 * store the address into dst_ptr */
5043 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5044 m->retobj_class = klass;
5045 g_assert (m->retobj_var);
5046 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5047 mono_mb_emit_byte (mb, CEE_CONV_I);
5048 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5049 mono_mb_emit_stloc (mb, 1);
5050 mono_mb_emit_ldloc (mb, 1);
5051 mono_mb_emit_stloc (mb, m->retobj_var);
5053 /* emit valuetype conversion code */
5054 emit_struct_conv (mb, klass, FALSE);
5058 g_assert_not_reached ();
5065 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5066 MonoMarshalSpec *spec,
5067 int conv_arg, MonoType **conv_arg_type,
5068 MarshalAction action)
5072 case MARSHAL_ACTION_CONV_IN:
5073 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5075 case MARSHAL_ACTION_MANAGED_CONV_IN:
5076 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5080 MonoMethodBuilder *mb = m->mb;
5081 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5082 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5086 case MARSHAL_ACTION_CONV_IN:
5087 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5088 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5091 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5094 mono_mb_emit_ldarg (mb, argnum);
5095 mono_mb_emit_byte (mb, CEE_LDIND_I);
5097 mono_mb_emit_ldarg (mb, argnum);
5101 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5102 mono_mb_emit_exception_marshal_directive (mb, msg);
5104 mono_mb_emit_icall (mb, conv_to_icall (conv));
5106 mono_mb_emit_stloc (mb, conv_arg);
5110 case MARSHAL_ACTION_CONV_OUT:
5111 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5113 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5114 mono_mb_emit_exception_marshal_directive (mb, msg);
5118 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5119 static MonoMethod *m;
5122 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5127 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5128 mono_mb_emit_exception_marshal_directive (mb, msg);
5133 * Have to allocate a new string with the same length as the original, and
5134 * copy the contents of the buffer pointed to by CONV_ARG into it.
5136 g_assert (t->byref);
5137 mono_mb_emit_ldarg (mb, argnum);
5138 mono_mb_emit_ldloc (mb, conv_arg);
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_byte (mb, CEE_LDIND_I);
5141 mono_mb_emit_managed_call (mb, m, NULL);
5142 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5143 mono_mb_emit_byte (mb, CEE_STIND_REF);
5144 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5145 mono_mb_emit_ldarg (mb, argnum);
5146 mono_mb_emit_ldloc (mb, conv_arg);
5147 mono_mb_emit_icall (mb, conv_to_icall (conv));
5148 mono_mb_emit_byte (mb, CEE_STIND_REF);
5153 mono_mb_emit_ldloc (mb, conv_arg);
5154 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5155 mono_mb_emit_icall (mb, mono_free_bstr);
5157 mono_mb_emit_icall (mb, mono_marshal_free);
5161 case MARSHAL_ACTION_PUSH:
5162 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5163 mono_mb_emit_ldloc_addr (mb, conv_arg);
5165 mono_mb_emit_ldloc (mb, conv_arg);
5168 case MARSHAL_ACTION_CONV_RESULT:
5169 mono_mb_emit_stloc (mb, 0);
5171 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5173 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5174 mono_mb_emit_exception_marshal_directive (mb, msg);
5178 mono_mb_emit_ldloc (mb, 0);
5179 mono_mb_emit_icall (mb, conv_to_icall (conv));
5180 mono_mb_emit_stloc (mb, 3);
5182 /* free the string */
5183 mono_mb_emit_ldloc (mb, 0);
5184 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5185 mono_mb_emit_icall (mb, mono_free_bstr);
5187 mono_mb_emit_icall (mb, mono_marshal_free);
5190 case MARSHAL_ACTION_MANAGED_CONV_IN:
5191 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5196 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5200 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5202 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5203 mono_mb_emit_exception_marshal_directive (mb, msg);
5207 mono_mb_emit_ldarg (mb, argnum);
5209 mono_mb_emit_byte (mb, CEE_LDIND_I);
5210 mono_mb_emit_icall (mb, conv_to_icall (conv));
5211 mono_mb_emit_stloc (mb, conv_arg);
5214 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5217 mono_mb_emit_ldarg (mb, argnum);
5218 mono_mb_emit_ldloc (mb, conv_arg);
5219 mono_mb_emit_icall (mb, conv_to_icall (conv));
5220 mono_mb_emit_byte (mb, CEE_STIND_I);
5225 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5226 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5227 /* We need to make a copy so the caller is able to free it */
5228 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5230 mono_mb_emit_icall (mb, conv_to_icall (conv));
5231 mono_mb_emit_stloc (mb, 3);
5235 g_assert_not_reached ();
5243 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5244 MonoMarshalSpec *spec, int conv_arg,
5245 MonoType **conv_arg_type, MarshalAction action)
5248 if (action == MARSHAL_ACTION_CONV_IN)
5249 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5251 MonoMethodBuilder *mb = m->mb;
5254 case MARSHAL_ACTION_CONV_IN: {
5255 MonoType *intptr_type;
5256 int dar_release_slot, pos;
5258 intptr_type = &mono_defaults.int_class->byval_arg;
5259 conv_arg = mono_mb_add_local (mb, intptr_type);
5260 *conv_arg_type = intptr_type;
5262 if (!sh_dangerous_add_ref)
5263 init_safe_handle ();
5265 mono_mb_emit_ldarg (mb, argnum);
5266 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5267 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5269 mono_mb_patch_branch (mb, pos);
5272 * My tests in show that ref SafeHandles are not really
5273 * passed as ref objects. Instead a NULL is passed as the
5276 mono_mb_emit_icon (mb, 0);
5277 mono_mb_emit_stloc (mb, conv_arg);
5281 /* Create local to hold the ref parameter to DangerousAddRef */
5282 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5284 /* set release = false; */
5285 mono_mb_emit_icon (mb, 0);
5286 mono_mb_emit_stloc (mb, dar_release_slot);
5288 /* safehandle.DangerousAddRef (ref release) */
5289 mono_mb_emit_ldarg (mb, argnum);
5290 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5291 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5293 /* Pull the handle field from SafeHandle */
5294 mono_mb_emit_ldarg (mb, argnum);
5295 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5296 mono_mb_emit_byte (mb, CEE_LDIND_I);
5297 mono_mb_emit_stloc (mb, conv_arg);
5302 case MARSHAL_ACTION_PUSH:
5304 mono_mb_emit_ldloc_addr (mb, conv_arg);
5306 mono_mb_emit_ldloc (mb, conv_arg);
5309 case MARSHAL_ACTION_CONV_OUT: {
5310 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5311 int dar_release_slot = conv_arg + 1;
5314 if (!sh_dangerous_release)
5315 init_safe_handle ();
5321 * My tests indicate that ref SafeHandles parameters are not actually
5322 * passed by ref, but instead a new Handle is created regardless of
5323 * whether a change happens in the unmanaged side.
5325 * Also, the Handle is created before calling into unmanaged code,
5326 * but we do not support that mechanism (getting to the original
5327 * handle) and it makes no difference where we create this
5329 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5331 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5334 /* refval = new SafeHandleDerived ()*/
5335 mono_mb_emit_ldarg (mb, argnum);
5336 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5337 mono_mb_emit_byte (mb, CEE_STIND_REF);
5339 /* refval.handle = returned_handle */
5340 mono_mb_emit_ldarg (mb, argnum);
5341 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5342 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5343 mono_mb_emit_ldloc (mb, conv_arg);
5344 mono_mb_emit_byte (mb, CEE_STIND_I);
5346 mono_mb_emit_ldloc (mb, dar_release_slot);
5347 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5348 mono_mb_emit_ldarg (mb, argnum);
5349 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5350 mono_mb_patch_branch (mb, label_next);
5355 case MARSHAL_ACTION_CONV_RESULT: {
5356 MonoMethod *ctor = NULL;
5357 int intptr_handle_slot;
5359 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5360 mono_mb_emit_byte (mb, CEE_POP);
5361 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5365 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5367 mono_mb_emit_byte (mb, CEE_POP);
5368 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5371 /* Store the IntPtr results into a local */
5372 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5373 mono_mb_emit_stloc (mb, intptr_handle_slot);
5375 /* Create return value */
5376 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5377 mono_mb_emit_stloc (mb, 3);
5379 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5380 mono_mb_emit_ldloc (mb, 3);
5381 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5382 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5383 mono_mb_emit_byte (mb, CEE_STIND_I);
5387 case MARSHAL_ACTION_MANAGED_CONV_IN:
5388 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5391 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5392 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5395 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5396 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5399 printf ("Unhandled case for MarshalAction: %d\n", action);
5407 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5408 MonoMarshalSpec *spec, int conv_arg,
5409 MonoType **conv_arg_type, MarshalAction action)
5412 if (action == MARSHAL_ACTION_CONV_IN)
5413 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5415 MonoMethodBuilder *mb = m->mb;
5418 case MARSHAL_ACTION_CONV_IN: {
5419 MonoType *intptr_type;
5421 intptr_type = &mono_defaults.int_class->byval_arg;
5422 conv_arg = mono_mb_add_local (mb, intptr_type);
5423 *conv_arg_type = intptr_type;
5426 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5427 mono_mb_emit_exception_marshal_directive (mb, msg);
5430 mono_mb_emit_ldarg_addr (mb, argnum);
5431 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5432 mono_mb_emit_byte (mb, CEE_ADD);
5433 mono_mb_emit_byte (mb, CEE_LDIND_I);
5434 mono_mb_emit_stloc (mb, conv_arg);
5438 case MARSHAL_ACTION_PUSH:
5439 mono_mb_emit_ldloc (mb, conv_arg);
5442 case MARSHAL_ACTION_CONV_OUT: {
5443 /* no resource release required */
5447 case MARSHAL_ACTION_CONV_RESULT: {
5448 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5449 mono_mb_emit_exception_marshal_directive (mb, msg);
5453 case MARSHAL_ACTION_MANAGED_CONV_IN:
5454 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5457 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5458 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5461 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5462 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5465 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5473 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5474 MonoMarshalSpec *spec,
5475 int conv_arg, MonoType **conv_arg_type,
5476 MarshalAction action)
5479 if (action == MARSHAL_ACTION_CONV_IN)
5480 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5482 MonoMethodBuilder *mb = m->mb;
5483 MonoClass *klass = mono_class_from_mono_type (t);
5487 case MARSHAL_ACTION_CONV_IN:
5488 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5489 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5491 m->orig_conv_args [argnum] = 0;
5493 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5494 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5495 mono_mb_emit_exception_marshal_directive (mb, msg);
5499 if (klass->delegate) {
5501 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5502 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5503 mono_mb_emit_exception_marshal_directive (mb, msg);
5505 mono_mb_emit_byte (mb, CEE_LDNULL);
5506 mono_mb_emit_stloc (mb, conv_arg);
5508 mono_mb_emit_ldarg (mb, argnum);
5509 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5510 mono_mb_emit_stloc (mb, conv_arg);
5512 } else if (klass == mono_defaults.stringbuilder_class) {
5513 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5514 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5518 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5519 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5520 mono_mb_emit_exception_marshal_directive (mb, msg);
5526 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5530 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5531 mono_mb_emit_exception_marshal_directive (mb, msg);
5535 mono_mb_emit_ldarg (mb, argnum);
5537 mono_mb_emit_byte (mb, CEE_LDIND_I);
5539 mono_mb_emit_icall (mb, conv_to_icall (conv));
5540 mono_mb_emit_stloc (mb, conv_arg);
5541 } else if (klass->blittable) {
5542 mono_mb_emit_byte (mb, CEE_LDNULL);
5543 mono_mb_emit_stloc (mb, conv_arg);
5545 mono_mb_emit_ldarg (mb, argnum);
5546 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5548 mono_mb_emit_ldarg (mb, argnum);
5549 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5550 mono_mb_emit_stloc (mb, conv_arg);
5552 mono_mb_patch_branch (mb, pos);
5555 mono_mb_emit_byte (mb, CEE_LDNULL);
5556 mono_mb_emit_stloc (mb, conv_arg);
5559 /* we dont need any conversions for out parameters */
5560 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5563 mono_mb_emit_ldarg (mb, argnum);
5564 mono_mb_emit_byte (mb, CEE_LDIND_I);
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5569 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5572 /* store the address of the source into local variable 0 */
5573 mono_mb_emit_stloc (mb, 0);
5574 mono_mb_emit_ldloc (mb, 0);
5575 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5577 /* allocate space for the native struct and store the address */
5578 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5579 mono_mb_emit_byte (mb, CEE_PREFIX1);
5580 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5581 mono_mb_emit_stloc (mb, conv_arg);
5584 /* Need to store the original buffer so we can free it later */
5585 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5586 mono_mb_emit_ldloc (mb, conv_arg);
5587 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5590 /* set the src_ptr */
5591 mono_mb_emit_ldloc (mb, 0);
5592 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5593 mono_mb_emit_stloc (mb, 0);
5596 mono_mb_emit_ldloc (mb, conv_arg);
5597 mono_mb_emit_stloc (mb, 1);
5599 /* emit valuetype conversion code */
5600 emit_struct_conv (mb, klass, FALSE);
5602 mono_mb_patch_branch (mb, pos);
5606 case MARSHAL_ACTION_CONV_OUT:
5607 if (klass == mono_defaults.stringbuilder_class) {
5609 MonoMarshalNative encoding;
5610 MonoMarshalConv conv;
5612 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5613 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5615 g_assert (encoding != -1);
5618 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5622 mono_mb_emit_ldarg (mb, argnum);
5623 mono_mb_emit_ldloc (mb, conv_arg);
5626 case MONO_NATIVE_LPWSTR:
5627 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5629 case MONO_NATIVE_LPSTR:
5630 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5633 g_assert_not_reached ();
5636 mono_mb_emit_byte (mb, CEE_STIND_REF);
5638 mono_mb_emit_ldarg (mb, argnum);
5639 mono_mb_emit_ldloc (mb, conv_arg);
5641 mono_mb_emit_icall (mb, conv_to_icall (conv));
5645 mono_mb_emit_ldloc (mb, conv_arg);
5646 mono_mb_emit_icall (mb, mono_marshal_free);
5651 if (klass->delegate) {
5653 mono_mb_emit_ldarg (mb, argnum);
5654 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5655 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5656 mono_mb_emit_ldloc (mb, conv_arg);
5657 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5658 mono_mb_emit_byte (mb, CEE_STIND_REF);
5663 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5664 /* allocate a new object */
5665 mono_mb_emit_ldarg (mb, argnum);
5666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5667 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5668 mono_mb_emit_byte (mb, CEE_STIND_REF);
5671 /* dst = *argument */
5672 mono_mb_emit_ldarg (mb, argnum);
5675 mono_mb_emit_byte (mb, CEE_LDIND_I);
5677 mono_mb_emit_stloc (mb, 1);
5679 mono_mb_emit_ldloc (mb, 1);
5680 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5682 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5683 mono_mb_emit_ldloc (mb, 1);
5684 mono_mb_emit_icon (mb, sizeof (MonoObject));
5685 mono_mb_emit_byte (mb, CEE_ADD);
5686 mono_mb_emit_stloc (mb, 1);
5688 /* src = tmp_locals [i] */
5689 mono_mb_emit_ldloc (mb, conv_arg);
5690 mono_mb_emit_stloc (mb, 0);
5692 /* emit valuetype conversion code */
5693 emit_struct_conv (mb, klass, TRUE);
5695 /* Free the structure returned by the native code */
5696 emit_struct_free (mb, klass, conv_arg);
5698 if (m->orig_conv_args [argnum]) {
5700 * If the native function changed the pointer, then free
5701 * the original structure plus the new pointer.
5703 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5704 mono_mb_emit_ldloc (mb, conv_arg);
5705 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5707 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5708 g_assert (m->orig_conv_args [argnum]);
5710 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5713 mono_mb_emit_ldloc (mb, conv_arg);
5714 mono_mb_emit_icall (mb, mono_marshal_free);
5716 mono_mb_patch_branch (mb, pos2);
5720 /* Free the original structure passed to native code */
5721 emit_struct_free (mb, klass, conv_arg);
5723 mono_mb_patch_branch (mb, pos);
5726 case MARSHAL_ACTION_PUSH:
5728 mono_mb_emit_ldloc_addr (mb, conv_arg);
5730 mono_mb_emit_ldloc (mb, conv_arg);
5733 case MARSHAL_ACTION_CONV_RESULT:
5734 if (klass->delegate) {
5735 g_assert (!t->byref);
5736 mono_mb_emit_stloc (mb, 0);
5737 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5738 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5739 mono_mb_emit_ldloc (mb, 0);
5740 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5741 mono_mb_emit_stloc (mb, 3);
5744 mono_mb_emit_stloc (mb, 0);
5746 /* Make a copy since emit_conv modifies local 0 */
5747 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5748 mono_mb_emit_ldloc (mb, 0);
5749 mono_mb_emit_stloc (mb, loc);
5751 mono_mb_emit_byte (mb, CEE_LDNULL);
5752 mono_mb_emit_stloc (mb, 3);
5754 mono_mb_emit_ldloc (mb, 0);
5755 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5757 /* allocate result object */
5759 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5760 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5761 mono_mb_emit_stloc (mb, 3);
5765 mono_mb_emit_ldloc (mb, 3);
5766 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5767 mono_mb_emit_stloc (mb, 1);
5769 /* emit conversion code */
5770 emit_struct_conv (mb, klass, TRUE);
5772 emit_struct_free (mb, klass, loc);
5774 /* Free the pointer allocated by unmanaged code */
5775 mono_mb_emit_ldloc (mb, loc);
5776 mono_mb_emit_icall (mb, mono_marshal_free);
5777 mono_mb_patch_branch (mb, pos);
5781 case MARSHAL_ACTION_MANAGED_CONV_IN:
5782 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5784 if (klass->delegate) {
5785 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5786 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5787 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_byte (mb, CEE_LDIND_I);
5790 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5791 mono_mb_emit_stloc (mb, conv_arg);
5795 if (klass == mono_defaults.stringbuilder_class) {
5796 MonoMarshalNative encoding;
5798 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5801 g_assert (encoding == MONO_NATIVE_LPSTR);
5803 g_assert (!t->byref);
5804 g_assert (encoding != -1);
5806 mono_mb_emit_ldarg (mb, argnum);
5807 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5808 mono_mb_emit_stloc (mb, conv_arg);
5812 /* The class can not have an automatic layout */
5813 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5814 mono_mb_emit_auto_layout_exception (mb, klass);
5818 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5819 mono_mb_emit_byte (mb, CEE_LDNULL);
5820 mono_mb_emit_stloc (mb, conv_arg);
5825 mono_mb_emit_ldarg (mb, argnum);
5829 /* Check for NULL and raise an exception */
5830 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5832 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5834 mono_mb_patch_branch (mb, pos2);
5835 mono_mb_emit_ldarg (mb, argnum);
5836 mono_mb_emit_byte (mb, CEE_LDIND_I);
5839 mono_mb_emit_stloc (mb, 0);
5841 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5842 mono_mb_emit_stloc (mb, conv_arg);
5844 mono_mb_emit_ldloc (mb, 0);
5845 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5847 /* Create and set dst */
5848 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5849 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5850 mono_mb_emit_stloc (mb, conv_arg);
5851 mono_mb_emit_ldloc (mb, conv_arg);
5852 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5853 mono_mb_emit_stloc (mb, 1);
5855 /* emit valuetype conversion code */
5856 emit_struct_conv (mb, klass, TRUE);
5858 mono_mb_patch_branch (mb, pos);
5861 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5862 if (klass->delegate) {
5864 mono_mb_emit_ldarg (mb, argnum);
5865 mono_mb_emit_ldloc (mb, conv_arg);
5866 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5867 mono_mb_emit_byte (mb, CEE_STIND_I);
5873 /* Check for null */
5874 mono_mb_emit_ldloc (mb, conv_arg);
5875 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5876 mono_mb_emit_ldarg (mb, argnum);
5877 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5878 mono_mb_emit_byte (mb, CEE_STIND_REF);
5879 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5881 mono_mb_patch_branch (mb, pos);
5884 mono_mb_emit_ldloc (mb, conv_arg);
5885 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5886 mono_mb_emit_stloc (mb, 0);
5888 /* Allocate and set dest */
5889 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5890 mono_mb_emit_byte (mb, CEE_CONV_I);
5891 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5892 mono_mb_emit_stloc (mb, 1);
5894 /* Update argument pointer */
5895 mono_mb_emit_ldarg (mb, argnum);
5896 mono_mb_emit_ldloc (mb, 1);
5897 mono_mb_emit_byte (mb, CEE_STIND_I);
5899 /* emit valuetype conversion code */
5900 emit_struct_conv (mb, klass, FALSE);
5902 mono_mb_patch_branch (mb, pos2);
5903 } else if (klass == mono_defaults.stringbuilder_class) {
5904 // FIXME: What to do here ?
5906 /* byval [Out] marshalling */
5908 /* FIXME: Handle null */
5911 mono_mb_emit_ldloc (mb, conv_arg);
5912 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5913 mono_mb_emit_stloc (mb, 0);
5916 mono_mb_emit_ldarg (mb, argnum);
5917 mono_mb_emit_stloc (mb, 1);
5919 /* emit valuetype conversion code */
5920 emit_struct_conv (mb, klass, FALSE);
5924 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5925 if (klass->delegate) {
5926 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5927 mono_mb_emit_stloc (mb, 3);
5931 /* The class can not have an automatic layout */
5932 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5933 mono_mb_emit_auto_layout_exception (mb, klass);
5937 mono_mb_emit_stloc (mb, 0);
5938 /* Check for null */
5939 mono_mb_emit_ldloc (mb, 0);
5940 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5941 mono_mb_emit_byte (mb, CEE_LDNULL);
5942 mono_mb_emit_stloc (mb, 3);
5943 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5945 mono_mb_patch_branch (mb, pos);
5948 mono_mb_emit_ldloc (mb, 0);
5949 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5950 mono_mb_emit_stloc (mb, 0);
5952 /* Allocate and set dest */
5953 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5954 mono_mb_emit_byte (mb, CEE_CONV_I);
5955 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5956 mono_mb_emit_byte (mb, CEE_DUP);
5957 mono_mb_emit_stloc (mb, 1);
5958 mono_mb_emit_stloc (mb, 3);
5960 emit_struct_conv (mb, klass, FALSE);
5962 mono_mb_patch_branch (mb, pos2);
5966 g_assert_not_reached ();
5977 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5978 MonoMarshalSpec *spec,
5979 int conv_arg, MonoType **conv_arg_type,
5980 MarshalAction action)
5982 MonoMethodBuilder *mb = m->mb;
5983 static MonoMethod *get_object_for_native_variant = NULL;
5984 static MonoMethod *get_native_variant_for_object = NULL;
5986 if (!get_object_for_native_variant)
5987 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5988 g_assert (get_object_for_native_variant);
5990 if (!get_native_variant_for_object)
5991 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5992 g_assert (get_native_variant_for_object);
5995 case MARSHAL_ACTION_CONV_IN: {
5996 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5999 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6001 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6003 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6006 mono_mb_emit_ldarg (mb, argnum);
6008 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6009 mono_mb_emit_ldloc_addr (mb, conv_arg);
6010 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6014 case MARSHAL_ACTION_CONV_OUT: {
6015 static MonoMethod *variant_clear = NULL;
6018 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6019 g_assert (variant_clear);
6022 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6023 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_ldloc_addr (mb, conv_arg);
6025 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6026 mono_mb_emit_byte (mb, CEE_STIND_REF);
6029 mono_mb_emit_ldloc_addr (mb, conv_arg);
6030 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6034 case MARSHAL_ACTION_PUSH:
6036 mono_mb_emit_ldloc_addr (mb, conv_arg);
6038 mono_mb_emit_ldloc (mb, conv_arg);
6041 case MARSHAL_ACTION_CONV_RESULT: {
6042 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6043 mono_mb_emit_exception_marshal_directive (mb, msg);
6047 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6048 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6051 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6053 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6055 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6059 mono_mb_emit_ldarg (mb, argnum);
6061 mono_mb_emit_ldarg_addr (mb, argnum);
6062 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6063 mono_mb_emit_stloc (mb, conv_arg);
6067 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6068 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6069 mono_mb_emit_ldloc (mb, conv_arg);
6070 mono_mb_emit_ldarg (mb, argnum);
6071 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6076 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6077 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6078 mono_mb_emit_exception_marshal_directive (mb, msg);
6083 g_assert_not_reached ();
6089 #endif /* DISABLE_COM */
6090 #endif /* DISABLE_JIT */
6093 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6095 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6096 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6098 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6100 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6112 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6113 MonoMarshalSpec *spec,
6114 int conv_arg, MonoType **conv_arg_type,
6115 MarshalAction action)
6119 case MARSHAL_ACTION_CONV_IN:
6120 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6122 case MARSHAL_ACTION_MANAGED_CONV_IN:
6123 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6127 MonoMethodBuilder *mb = m->mb;
6128 MonoClass *klass = mono_class_from_mono_type (t);
6129 gboolean need_convert, need_free;
6130 MonoMarshalNative encoding;
6132 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6135 case MARSHAL_ACTION_CONV_IN:
6136 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6137 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6139 if (klass->element_class->blittable) {
6140 mono_mb_emit_ldarg (mb, argnum);
6142 mono_mb_emit_byte (mb, CEE_LDIND_I);
6143 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6144 mono_mb_emit_stloc (mb, conv_arg);
6147 guint32 label1, label2, label3;
6148 int index_var, src_var, dest_ptr, esize;
6149 MonoMarshalConv conv;
6150 gboolean is_string = FALSE;
6152 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6154 eklass = klass->element_class;
6156 if (eklass == mono_defaults.string_class) {
6158 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6160 else if (eklass == mono_defaults.stringbuilder_class) {
6162 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6165 conv = (MonoMarshalConv)-1;
6167 if (is_string && conv == -1) {
6168 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6169 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6174 mono_mb_emit_ldarg (mb, argnum);
6176 mono_mb_emit_byte (mb, CEE_LDIND_I);
6177 mono_mb_emit_stloc (mb, src_var);
6180 mono_mb_emit_ldloc (mb, src_var);
6181 mono_mb_emit_stloc (mb, conv_arg);
6182 mono_mb_emit_ldloc (mb, src_var);
6183 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6186 esize = sizeof (gpointer);
6187 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6188 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6190 esize = mono_class_native_size (eklass, NULL);
6192 /* allocate space for the native struct and store the address */
6193 mono_mb_emit_icon (mb, esize);
6194 mono_mb_emit_ldloc (mb, src_var);
6195 mono_mb_emit_byte (mb, CEE_LDLEN);
6197 if (eklass == mono_defaults.string_class) {
6198 /* Make the array bigger for the terminating null */
6199 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6200 mono_mb_emit_byte (mb, CEE_ADD);
6202 mono_mb_emit_byte (mb, CEE_MUL);
6203 mono_mb_emit_byte (mb, CEE_PREFIX1);
6204 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6205 mono_mb_emit_stloc (mb, conv_arg);
6207 mono_mb_emit_ldloc (mb, conv_arg);
6208 mono_mb_emit_stloc (mb, dest_ptr);
6210 /* Emit marshalling loop */
6211 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6212 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6213 mono_mb_emit_stloc (mb, index_var);
6214 label2 = mono_mb_get_label (mb);
6215 mono_mb_emit_ldloc (mb, index_var);
6216 mono_mb_emit_ldloc (mb, src_var);
6217 mono_mb_emit_byte (mb, CEE_LDLEN);
6218 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6220 /* Emit marshalling code */
6223 mono_mb_emit_ldloc (mb, dest_ptr);
6224 mono_mb_emit_ldloc (mb, src_var);
6225 mono_mb_emit_ldloc (mb, index_var);
6226 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6227 mono_mb_emit_icall (mb, conv_to_icall (conv));
6228 mono_mb_emit_byte (mb, CEE_STIND_I);
6230 /* set the src_ptr */
6231 mono_mb_emit_ldloc (mb, src_var);
6232 mono_mb_emit_ldloc (mb, index_var);
6233 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6234 mono_mb_emit_stloc (mb, 0);
6237 mono_mb_emit_ldloc (mb, dest_ptr);
6238 mono_mb_emit_stloc (mb, 1);
6240 /* emit valuetype conversion code */
6241 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6244 mono_mb_emit_add_to_local (mb, index_var, 1);
6245 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6247 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6249 mono_mb_patch_branch (mb, label3);
6251 if (eklass == mono_defaults.string_class) {
6252 /* Null terminate */
6253 mono_mb_emit_ldloc (mb, dest_ptr);
6254 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6255 mono_mb_emit_byte (mb, CEE_STIND_REF);
6258 mono_mb_patch_branch (mb, label1);
6263 case MARSHAL_ACTION_CONV_OUT:
6264 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6265 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);
6266 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6269 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6270 int param_num = spec->data.array_data.param_num;
6271 MonoType *param_type;
6273 param_type = m->sig->params [param_num];
6275 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6276 char *msg = g_strdup ("Not implemented.");
6277 mono_mb_emit_exception_marshal_directive (mb, msg);
6282 mono_mb_emit_ldarg (mb, argnum);
6284 /* Create the managed array */
6285 mono_mb_emit_ldarg (mb, param_num);
6286 if (m->sig->params [param_num]->byref)
6287 // FIXME: Support other types
6288 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6289 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6290 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6291 /* Store into argument */
6292 mono_mb_emit_byte (mb, CEE_STIND_I);
6296 if (need_convert || need_free) {
6297 /* FIXME: Optimize blittable case */
6299 guint32 label1, label2, label3;
6300 int index_var, src_ptr, loc, esize;
6302 eklass = klass->element_class;
6303 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6304 esize = sizeof (gpointer);
6305 else if (eklass == mono_defaults.char_class)
6306 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6308 esize = mono_class_native_size (eklass, NULL);
6309 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6310 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6313 mono_mb_emit_ldarg (mb, argnum);
6315 mono_mb_emit_byte (mb, CEE_LDIND_I);
6316 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6318 mono_mb_emit_ldloc (mb, conv_arg);
6319 mono_mb_emit_stloc (mb, src_ptr);
6321 /* Emit marshalling loop */
6322 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6323 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6324 mono_mb_emit_stloc (mb, index_var);
6325 label2 = mono_mb_get_label (mb);
6326 mono_mb_emit_ldloc (mb, index_var);
6327 mono_mb_emit_ldarg (mb, argnum);
6329 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6330 mono_mb_emit_byte (mb, CEE_LDLEN);
6331 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6333 /* Emit marshalling code */
6335 if (eklass == mono_defaults.stringbuilder_class) {
6336 gboolean need_free2;
6337 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6339 g_assert (conv != -1);
6342 mono_mb_emit_ldarg (mb, argnum);
6344 mono_mb_emit_byte (mb, CEE_LDIND_I);
6345 mono_mb_emit_ldloc (mb, index_var);
6346 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6349 mono_mb_emit_ldloc (mb, src_ptr);
6350 mono_mb_emit_byte (mb, CEE_LDIND_I);
6352 mono_mb_emit_icall (mb, conv_to_icall (conv));
6356 mono_mb_emit_ldloc (mb, src_ptr);
6357 mono_mb_emit_byte (mb, CEE_LDIND_I);
6359 mono_mb_emit_icall (mb, mono_marshal_free);
6362 else if (eklass == mono_defaults.string_class) {
6365 mono_mb_emit_ldloc (mb, src_ptr);
6366 mono_mb_emit_byte (mb, CEE_LDIND_I);
6368 mono_mb_emit_icall (mb, mono_marshal_free);
6373 /* set the src_ptr */
6374 mono_mb_emit_ldloc (mb, src_ptr);
6375 mono_mb_emit_stloc (mb, 0);
6378 mono_mb_emit_ldarg (mb, argnum);
6380 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6381 mono_mb_emit_ldloc (mb, index_var);
6382 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6383 mono_mb_emit_stloc (mb, 1);
6385 /* emit valuetype conversion code */
6386 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6390 mono_mb_emit_ldloc (mb, src_ptr);
6391 mono_mb_emit_stloc (mb, loc);
6392 mono_mb_emit_ldloc (mb, loc);
6394 emit_struct_free (mb, eklass, loc);
6398 mono_mb_emit_add_to_local (mb, index_var, 1);
6399 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6401 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6403 mono_mb_patch_branch (mb, label1);
6404 mono_mb_patch_branch (mb, label3);
6407 if (klass->element_class->blittable) {
6408 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6410 mono_mb_emit_ldarg (mb, argnum);
6412 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6413 mono_mb_emit_ldloc (mb, conv_arg);
6414 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6419 case MARSHAL_ACTION_PUSH:
6421 mono_mb_emit_ldloc_addr (mb, conv_arg);
6423 mono_mb_emit_ldloc (mb, conv_arg);
6426 case MARSHAL_ACTION_CONV_RESULT:
6427 /* fixme: we need conversions here */
6428 mono_mb_emit_stloc (mb, 3);
6431 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6433 guint32 label1, label2, label3;
6434 int index_var, src_ptr, esize, param_num, num_elem;
6435 MonoMarshalConv conv;
6436 gboolean is_string = FALSE;
6438 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6439 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6442 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6443 mono_mb_emit_exception_marshal_directive (mb, msg);
6447 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6448 mono_mb_emit_exception_marshal_directive (mb, msg);
6451 if (spec->native != MONO_NATIVE_LPARRAY) {
6452 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6453 mono_mb_emit_exception_marshal_directive (mb, msg);
6457 /* FIXME: t is from the method which is wrapped, not the delegate type */
6458 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6460 param_num = spec->data.array_data.param_num;
6461 num_elem = spec->data.array_data.num_elem;
6462 if (spec->data.array_data.elem_mult == 0)
6463 /* param_num is not specified */
6466 if (param_num == -1) {
6467 if (num_elem <= 0) {
6468 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6469 mono_mb_emit_exception_marshal_directive (mb, msg);
6474 /* FIXME: Optimize blittable case */
6476 eklass = klass->element_class;
6477 if (eklass == mono_defaults.string_class) {
6479 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6481 else if (eklass == mono_defaults.stringbuilder_class) {
6483 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6486 conv = (MonoMarshalConv)-1;
6488 mono_marshal_load_type_info (eklass);
6491 esize = sizeof (gpointer);
6493 esize = mono_class_native_size (eklass, NULL);
6494 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6496 mono_mb_emit_byte (mb, CEE_LDNULL);
6497 mono_mb_emit_stloc (mb, conv_arg);
6499 /* Check param index */
6500 if (param_num != -1) {
6501 if (param_num >= m->sig->param_count) {
6502 char *msg = g_strdup ("Array size control parameter index is out of range.");
6503 mono_mb_emit_exception_marshal_directive (mb, msg);
6506 switch (m->sig->params [param_num]->type) {
6519 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6520 mono_mb_emit_exception_marshal_directive (mb, msg);
6527 mono_mb_emit_ldarg (mb, argnum);
6528 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6530 mono_mb_emit_ldarg (mb, argnum);
6531 mono_mb_emit_stloc (mb, src_ptr);
6533 /* Create managed array */
6535 * The LPArray marshalling spec says that sometimes param_num starts
6536 * from 1, sometimes it starts from 0. But MS seems to allways start
6540 if (param_num == -1) {
6541 mono_mb_emit_icon (mb, num_elem);
6543 mono_mb_emit_ldarg (mb, param_num);
6545 mono_mb_emit_icon (mb, num_elem);
6546 mono_mb_emit_byte (mb, CEE_ADD);
6548 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6551 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6552 mono_mb_emit_stloc (mb, conv_arg);
6554 if (eklass->blittable) {
6555 mono_mb_emit_ldloc (mb, conv_arg);
6556 mono_mb_emit_byte (mb, CEE_CONV_I);
6557 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6558 mono_mb_emit_byte (mb, CEE_ADD);
6559 mono_mb_emit_ldarg (mb, argnum);
6560 mono_mb_emit_ldloc (mb, conv_arg);
6561 mono_mb_emit_byte (mb, CEE_LDLEN);
6562 mono_mb_emit_icon (mb, esize);
6563 mono_mb_emit_byte (mb, CEE_MUL);
6564 mono_mb_emit_byte (mb, CEE_PREFIX1);
6565 mono_mb_emit_byte (mb, CEE_CPBLK);
6569 /* Emit marshalling loop */
6570 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6571 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6572 mono_mb_emit_stloc (mb, index_var);
6573 label2 = mono_mb_get_label (mb);
6574 mono_mb_emit_ldloc (mb, index_var);
6575 mono_mb_emit_ldloc (mb, conv_arg);
6576 mono_mb_emit_byte (mb, CEE_LDLEN);
6577 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6579 /* Emit marshalling code */
6581 g_assert (conv != -1);
6583 mono_mb_emit_ldloc (mb, conv_arg);
6584 mono_mb_emit_ldloc (mb, index_var);
6586 mono_mb_emit_ldloc (mb, src_ptr);
6587 mono_mb_emit_byte (mb, CEE_LDIND_I);
6589 mono_mb_emit_icall (mb, conv_to_icall (conv));
6590 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6593 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6594 mono_mb_emit_exception_marshal_directive (mb, msg);
6598 mono_mb_emit_add_to_local (mb, index_var, 1);
6599 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6601 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6603 mono_mb_patch_branch (mb, label1);
6604 mono_mb_patch_branch (mb, label3);
6608 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6610 guint32 label1, label2, label3;
6611 int index_var, dest_ptr, esize, param_num, num_elem;
6612 MonoMarshalConv conv;
6613 gboolean is_string = FALSE;
6616 /* Already handled in CONV_IN */
6619 /* These are already checked in CONV_IN */
6620 g_assert (!t->byref);
6621 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6622 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6624 param_num = spec->data.array_data.param_num;
6625 num_elem = spec->data.array_data.num_elem;
6627 if (spec->data.array_data.elem_mult == 0)
6628 /* param_num is not specified */
6631 if (param_num == -1) {
6632 if (num_elem <= 0) {
6633 g_assert_not_reached ();
6637 /* FIXME: Optimize blittable case */
6639 eklass = klass->element_class;
6640 if (eklass == mono_defaults.string_class) {
6642 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6644 else if (eklass == mono_defaults.stringbuilder_class) {
6646 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6649 conv = (MonoMarshalConv)-1;
6651 mono_marshal_load_type_info (eklass);
6654 esize = sizeof (gpointer);
6656 esize = mono_class_native_size (eklass, NULL);
6658 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6661 mono_mb_emit_ldloc (mb, conv_arg);
6662 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6664 mono_mb_emit_ldarg (mb, argnum);
6665 mono_mb_emit_stloc (mb, dest_ptr);
6667 if (eklass->blittable) {
6669 mono_mb_emit_ldarg (mb, argnum);
6671 mono_mb_emit_ldloc (mb, conv_arg);
6672 mono_mb_emit_byte (mb, CEE_CONV_I);
6673 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6674 mono_mb_emit_byte (mb, CEE_ADD);
6676 mono_mb_emit_ldloc (mb, conv_arg);
6677 mono_mb_emit_byte (mb, CEE_LDLEN);
6678 mono_mb_emit_icon (mb, esize);
6679 mono_mb_emit_byte (mb, CEE_MUL);
6680 mono_mb_emit_byte (mb, CEE_PREFIX1);
6681 mono_mb_emit_byte (mb, CEE_CPBLK);
6685 /* Emit marshalling loop */
6686 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6687 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6688 mono_mb_emit_stloc (mb, index_var);
6689 label2 = mono_mb_get_label (mb);
6690 mono_mb_emit_ldloc (mb, index_var);
6691 mono_mb_emit_ldloc (mb, conv_arg);
6692 mono_mb_emit_byte (mb, CEE_LDLEN);
6693 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6695 /* Emit marshalling code */
6697 g_assert (conv != -1);
6700 mono_mb_emit_ldloc (mb, dest_ptr);
6703 mono_mb_emit_ldloc (mb, conv_arg);
6704 mono_mb_emit_ldloc (mb, index_var);
6706 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6708 mono_mb_emit_icall (mb, conv_to_icall (conv));
6709 mono_mb_emit_byte (mb, CEE_STIND_I);
6712 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6713 mono_mb_emit_exception_marshal_directive (mb, msg);
6717 mono_mb_emit_add_to_local (mb, index_var, 1);
6718 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6720 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6722 mono_mb_patch_branch (mb, label1);
6723 mono_mb_patch_branch (mb, label3);
6727 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6729 guint32 label1, label2, label3;
6730 int index_var, src, dest, esize;
6731 MonoMarshalConv conv = (MonoMarshalConv)-1;
6732 gboolean is_string = FALSE;
6734 g_assert (!t->byref);
6736 eklass = klass->element_class;
6738 mono_marshal_load_type_info (eklass);
6740 if (eklass == mono_defaults.string_class) {
6742 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6745 g_assert_not_reached ();
6749 esize = sizeof (gpointer);
6750 else if (eklass == mono_defaults.char_class)
6751 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6753 esize = mono_class_native_size (eklass, NULL);
6755 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6756 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6758 mono_mb_emit_stloc (mb, src);
6759 mono_mb_emit_ldloc (mb, src);
6760 mono_mb_emit_stloc (mb, 3);
6762 /* Check for null */
6763 mono_mb_emit_ldloc (mb, src);
6764 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6766 /* Allocate native array */
6767 mono_mb_emit_icon (mb, esize);
6768 mono_mb_emit_ldloc (mb, src);
6769 mono_mb_emit_byte (mb, CEE_LDLEN);
6771 if (eklass == mono_defaults.string_class) {
6772 /* Make the array bigger for the terminating null */
6773 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6774 mono_mb_emit_byte (mb, CEE_ADD);
6776 mono_mb_emit_byte (mb, CEE_MUL);
6777 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6778 mono_mb_emit_stloc (mb, dest);
6779 mono_mb_emit_ldloc (mb, dest);
6780 mono_mb_emit_stloc (mb, 3);
6782 /* Emit marshalling loop */
6783 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6784 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6785 mono_mb_emit_stloc (mb, index_var);
6786 label2 = mono_mb_get_label (mb);
6787 mono_mb_emit_ldloc (mb, index_var);
6788 mono_mb_emit_ldloc (mb, src);
6789 mono_mb_emit_byte (mb, CEE_LDLEN);
6790 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6792 /* Emit marshalling code */
6794 g_assert (conv != -1);
6797 mono_mb_emit_ldloc (mb, dest);
6800 mono_mb_emit_ldloc (mb, src);
6801 mono_mb_emit_ldloc (mb, index_var);
6803 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6805 mono_mb_emit_icall (mb, conv_to_icall (conv));
6806 mono_mb_emit_byte (mb, CEE_STIND_I);
6809 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6810 mono_mb_emit_exception_marshal_directive (mb, msg);
6814 mono_mb_emit_add_to_local (mb, index_var, 1);
6815 mono_mb_emit_add_to_local (mb, dest, esize);
6817 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6819 mono_mb_patch_branch (mb, label3);
6820 mono_mb_patch_branch (mb, label1);
6824 g_assert_not_reached ();
6831 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6834 return &mono_defaults.int32_class->byval_arg;
6836 switch (spec->native) {
6837 case MONO_NATIVE_I1:
6838 case MONO_NATIVE_U1:
6839 return &mono_defaults.byte_class->byval_arg;
6840 case MONO_NATIVE_VARIANTBOOL:
6841 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6842 return &mono_defaults.int16_class->byval_arg;
6843 case MONO_NATIVE_BOOLEAN:
6844 return &mono_defaults.int32_class->byval_arg;
6846 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6847 return &mono_defaults.int32_class->byval_arg;
6853 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6855 MonoClass* conv_arg_class = mono_defaults.int32_class;
6857 switch (spec->native) {
6858 case MONO_NATIVE_I1:
6859 case MONO_NATIVE_U1:
6860 conv_arg_class = mono_defaults.byte_class;
6861 if (ldop) *ldop = CEE_LDIND_I1;
6863 case MONO_NATIVE_VARIANTBOOL:
6864 conv_arg_class = mono_defaults.int16_class;
6865 if (ldop) *ldop = CEE_LDIND_I2;
6867 case MONO_NATIVE_BOOLEAN:
6870 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6873 return conv_arg_class;
6877 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6878 MonoMarshalSpec *spec,
6879 int conv_arg, MonoType **conv_arg_type,
6880 MarshalAction action)
6884 case MARSHAL_ACTION_CONV_IN:
6886 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6888 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6891 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6892 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6894 *conv_arg_type = &conv_arg_class->this_arg;
6896 *conv_arg_type = &conv_arg_class->byval_arg;
6902 MonoMethodBuilder *mb = m->mb;
6905 case MARSHAL_ACTION_CONV_IN: {
6906 MonoType *local_type;
6908 guint8 ldc_op = CEE_LDC_I4_1;
6910 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6912 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6914 *conv_arg_type = local_type;
6915 conv_arg = mono_mb_add_local (mb, local_type);
6917 mono_mb_emit_ldarg (mb, argnum);
6919 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6920 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6921 mono_mb_emit_byte (mb, ldc_op);
6922 mono_mb_emit_stloc (mb, conv_arg);
6923 mono_mb_patch_branch (mb, label_false);
6928 case MARSHAL_ACTION_CONV_OUT:
6930 int label_false, label_end;
6934 mono_mb_emit_ldarg (mb, argnum);
6935 mono_mb_emit_ldloc (mb, conv_arg);
6937 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6938 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6940 label_end = mono_mb_emit_branch (mb, CEE_BR);
6941 mono_mb_patch_branch (mb, label_false);
6942 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6943 mono_mb_patch_branch (mb, label_end);
6945 mono_mb_emit_byte (mb, CEE_STIND_I1);
6949 case MARSHAL_ACTION_PUSH:
6951 mono_mb_emit_ldloc_addr (mb, conv_arg);
6953 mono_mb_emit_ldloc (mb, conv_arg);
6955 mono_mb_emit_ldarg (mb, argnum);
6958 case MARSHAL_ACTION_CONV_RESULT:
6959 /* maybe we need to make sure that it fits within 8 bits */
6960 mono_mb_emit_stloc (mb, 3);
6963 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6964 MonoClass* conv_arg_class = mono_defaults.int32_class;
6965 guint8 ldop = CEE_LDIND_I4;
6966 int label_null, label_false;
6968 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6969 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6972 *conv_arg_type = &conv_arg_class->this_arg;
6974 *conv_arg_type = &conv_arg_class->byval_arg;
6977 mono_mb_emit_ldarg (mb, argnum);
6981 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6982 mono_mb_emit_ldarg (mb, argnum);
6983 mono_mb_emit_byte (mb, ldop);
6987 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6988 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6989 mono_mb_emit_stloc (mb, conv_arg);
6990 mono_mb_patch_branch (mb, label_false);
6993 mono_mb_patch_branch (mb, label_null);
6997 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6998 guint8 stop = CEE_STIND_I4;
6999 guint8 ldc_op = CEE_LDC_I4_1;
7000 int label_null,label_false, label_end;;
7005 switch (spec->native) {
7006 case MONO_NATIVE_I1:
7007 case MONO_NATIVE_U1:
7008 stop = CEE_STIND_I1;
7010 case MONO_NATIVE_VARIANTBOOL:
7011 stop = CEE_STIND_I2;
7012 ldc_op = CEE_LDC_I4_M1;
7020 mono_mb_emit_ldarg (mb, argnum);
7021 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7023 mono_mb_emit_ldarg (mb, argnum);
7024 mono_mb_emit_ldloc (mb, conv_arg);
7026 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7027 mono_mb_emit_byte (mb, ldc_op);
7028 label_end = mono_mb_emit_branch (mb, CEE_BR);
7030 mono_mb_patch_branch (mb, label_false);
7031 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7032 mono_mb_patch_branch (mb, label_end);
7034 mono_mb_emit_byte (mb, stop);
7035 mono_mb_patch_branch (mb, label_null);
7040 g_assert_not_reached ();
7047 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7048 MonoMarshalSpec *spec, int conv_arg,
7049 MonoType **conv_arg_type, MarshalAction action)
7052 MonoMethodBuilder *mb = m->mb;
7055 case MARSHAL_ACTION_CONV_IN:
7056 /* MS seems to allow this in some cases, ie. bxc #158 */
7058 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7059 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7060 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7065 case MARSHAL_ACTION_PUSH:
7066 mono_mb_emit_ldarg (mb, argnum);
7069 case MARSHAL_ACTION_CONV_RESULT:
7070 /* no conversions necessary */
7071 mono_mb_emit_stloc (mb, 3);
7082 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7083 MonoMarshalSpec *spec, int conv_arg,
7084 MonoType **conv_arg_type, MarshalAction action)
7087 MonoMethodBuilder *mb = m->mb;
7090 case MARSHAL_ACTION_PUSH:
7091 /* fixme: dont know how to marshal that. We cant simply
7092 * convert it to a one byte UTF8 character, because an
7093 * unicode character may need more that one byte in UTF8 */
7094 mono_mb_emit_ldarg (mb, argnum);
7097 case MARSHAL_ACTION_CONV_RESULT:
7098 /* fixme: we need conversions here */
7099 mono_mb_emit_stloc (mb, 3);
7110 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7111 MonoMarshalSpec *spec, int conv_arg,
7112 MonoType **conv_arg_type, MarshalAction action)
7115 MonoMethodBuilder *mb = m->mb;
7118 case MARSHAL_ACTION_PUSH:
7119 mono_mb_emit_ldarg (mb, argnum);
7122 case MARSHAL_ACTION_CONV_RESULT:
7123 /* no conversions necessary */
7124 mono_mb_emit_stloc (mb, 3);
7135 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7136 MonoMarshalSpec *spec, int conv_arg,
7137 MonoType **conv_arg_type, MarshalAction action)
7139 /* Ensure that we have marshalling info for this param */
7140 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7142 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7143 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7145 if (spec && spec->native == MONO_NATIVE_ASANY)
7146 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7149 case MONO_TYPE_VALUETYPE:
7150 if (t->data.klass == mono_defaults.handleref_class)
7151 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7153 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7154 case MONO_TYPE_STRING:
7155 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7156 case MONO_TYPE_CLASS:
7157 case MONO_TYPE_OBJECT:
7159 if (spec && spec->native == MONO_NATIVE_STRUCT)
7160 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7162 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7163 spec->native == MONO_NATIVE_IDISPATCH ||
7164 spec->native == MONO_NATIVE_INTERFACE))
7165 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7166 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7167 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7168 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7169 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7172 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7173 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7174 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7176 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7177 case MONO_TYPE_ARRAY:
7178 case MONO_TYPE_SZARRAY:
7179 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7180 case MONO_TYPE_BOOLEAN:
7181 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7184 case MONO_TYPE_CHAR:
7185 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 case MONO_TYPE_FNPTR:
7199 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7200 case MONO_TYPE_GENERICINST:
7201 if (mono_type_generic_inst_is_valuetype (t))
7202 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7204 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 * mono_marshal_emit_native_wrapper:
7213 * @image: the image to use for looking up custom marshallers
7214 * @sig: The signature of the native function
7215 * @piinfo: Marshalling information
7216 * @mspecs: Marshalling information
7217 * @aot: whenever the created method will be compiled by the AOT compiler
7218 * @method: if non-NULL, the pinvoke method to call
7219 * @check_exceptions: Whenever to check for pending exceptions after the native call
7220 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7222 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7225 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)
7227 EmitMarshalContext m;
7228 MonoMethodSignature *csig;
7230 MonoExceptionClause *clause;
7231 int i, argnum, *tmp_locals;
7232 int type, param_shift = 0;
7233 static MonoMethodSignature *get_last_error_sig = NULL;
7234 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7237 memset (&m, 0, sizeof (m));
7242 /* we copy the signature, so that we can set pinvoke to 0 */
7244 /* The function address is passed as the first argument */
7245 g_assert (!sig->hasthis);
7248 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7256 /* we allocate local for use with emit_struct_conv() */
7257 /* allocate local 0 (pointer) src_ptr */
7258 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7259 /* allocate local 1 (pointer) dst_ptr */
7260 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7261 /* allocate local 2 (boolean) delete_old */
7262 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7264 /* delete_old = FALSE */
7265 mono_mb_emit_icon (mb, 0);
7266 mono_mb_emit_stloc (mb, 2);
7268 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7269 /* allocate local 3 to store the return value */
7270 mono_mb_add_local (mb, sig->ret);
7273 if (mono_threads_is_coop_enabled ()) {
7274 /* local 4, dummy local used to get a stack address for suspend funcs */
7275 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7276 /* local 5, the local to be used when calling the suspend funcs */
7277 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7278 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7280 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7281 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7284 if (MONO_TYPE_ISSTRUCT (sig->ret))
7285 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7287 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7288 /* Return type custom marshaling */
7290 * Since we can't determine the return type of the unmanaged function,
7291 * we assume it returns a pointer, and pass that pointer to
7292 * MarshalNativeToManaged.
7294 csig->ret = &mono_defaults.int_class->byval_arg;
7297 /* we first do all conversions */
7298 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7299 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7301 for (i = 0; i < sig->param_count; i ++) {
7302 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7305 // In coop mode need to register blocking state during native call
7306 if (mono_threads_is_coop_enabled ()) {
7307 // Perform an extra, early lookup of the function address, so any exceptions
7308 // potentially resulting from the lookup occur before entering blocking mode.
7309 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7310 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7311 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7312 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7315 clause->try_offset = mono_mb_get_label (mb);
7317 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7318 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7319 mono_mb_emit_stloc (mb, coop_gc_var);
7322 /* push all arguments */
7325 mono_mb_emit_byte (mb, CEE_LDARG_0);
7327 for (i = 0; i < sig->param_count; i++) {
7328 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7331 /* call the native method */
7333 mono_mb_emit_byte (mb, CEE_LDARG_0);
7334 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7335 mono_mb_emit_byte (mb, CEE_LDIND_I);
7336 mono_mb_emit_calli (mb, csig);
7337 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7339 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7341 g_assert_not_reached ();
7346 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7347 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7348 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7349 mono_mb_emit_calli (mb, csig);
7351 mono_mb_emit_native_call (mb, csig, func);
7355 /* Set LastError if needed */
7356 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7357 if (!get_last_error_sig) {
7358 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7359 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7360 get_last_error_sig->pinvoke = 1;
7365 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7366 * clobber its value.
7368 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7369 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7371 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7375 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7376 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7377 mono_class_init (klass);
7378 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7379 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7380 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7381 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7382 mono_mb_emit_stloc (mb, m.vtaddr_var);
7386 /* Unblock before converting the result, since that can involve calls into the runtime */
7387 if (mono_threads_is_coop_enabled ()) {
7388 mono_mb_emit_ldloc (mb, coop_gc_var);
7389 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7390 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7391 mono_mb_emit_icon (mb, 1);
7392 mono_mb_emit_stloc (mb, coop_unblocked_var);
7395 /* convert the result */
7396 if (!sig->ret->byref) {
7397 MonoMarshalSpec *spec = mspecs [0];
7398 type = sig->ret->type;
7400 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7401 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7405 case MONO_TYPE_VOID:
7407 case MONO_TYPE_VALUETYPE:
7408 klass = sig->ret->data.klass;
7409 if (klass->enumtype) {
7410 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7413 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7427 case MONO_TYPE_FNPTR:
7428 case MONO_TYPE_STRING:
7429 case MONO_TYPE_CLASS:
7430 case MONO_TYPE_OBJECT:
7431 case MONO_TYPE_BOOLEAN:
7432 case MONO_TYPE_ARRAY:
7433 case MONO_TYPE_SZARRAY:
7434 case MONO_TYPE_CHAR:
7436 case MONO_TYPE_GENERICINST:
7437 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7439 case MONO_TYPE_TYPEDBYREF:
7441 g_warning ("return type 0x%02x unknown", sig->ret->type);
7442 g_assert_not_reached ();
7446 mono_mb_emit_stloc (mb, 3);
7449 if (mono_threads_is_coop_enabled ()) {
7452 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7454 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7455 clause->handler_offset = mono_mb_get_label (mb);
7457 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7458 mono_mb_emit_icon (mb, 1);
7459 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7461 mono_mb_emit_ldloc (mb, coop_gc_var);
7462 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7463 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7465 mono_mb_patch_branch (mb, pos);
7467 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7469 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7471 mono_mb_patch_branch (mb, leave_pos);
7475 * Need to call this after converting the result since MONO_VTADDR needs
7476 * to be adjacent to the call instruction.
7478 if (check_exceptions)
7479 emit_thread_interrupt_checkpoint (mb);
7481 /* we need to convert byref arguments back and free string arrays */
7482 for (i = 0; i < sig->param_count; i++) {
7483 MonoType *t = sig->params [i];
7484 MonoMarshalSpec *spec = mspecs [i + 1];
7486 argnum = i + param_shift;
7488 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7489 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7494 case MONO_TYPE_STRING:
7495 case MONO_TYPE_VALUETYPE:
7496 case MONO_TYPE_CLASS:
7497 case MONO_TYPE_OBJECT:
7498 case MONO_TYPE_SZARRAY:
7499 case MONO_TYPE_BOOLEAN:
7500 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7507 if (!MONO_TYPE_IS_VOID(sig->ret))
7508 mono_mb_emit_ldloc (mb, 3);
7510 mono_mb_emit_byte (mb, CEE_RET);
7512 if (mono_threads_is_coop_enabled ()) {
7513 mono_mb_set_clauses (mb, 1, clause);
7516 #endif /* DISABLE_JIT */
7519 * mono_marshal_get_native_wrapper:
7520 * @method: The MonoMethod to wrap.
7521 * @check_exceptions: Whenever to check for pending exceptions
7523 * generates IL code for the pinvoke wrapper (the generated method
7524 * calls the unmanaged code in piinfo->addr)
7525 * The wrapper info for the wrapper is a WrapperInfo structure.
7528 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7530 MonoMethodSignature *sig, *csig;
7531 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7532 MonoMethodBuilder *mb;
7533 MonoMarshalSpec **mspecs;
7536 gboolean pinvoke = FALSE;
7539 const char *exc_class = "MissingMethodException";
7540 const char *exc_arg = NULL;
7543 g_assert (method != NULL);
7544 g_assert (mono_method_signature (method)->pinvoke);
7546 GHashTable **cache_ptr;
7549 if (check_exceptions)
7550 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7552 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7554 if (check_exceptions)
7555 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7557 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7560 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7562 if ((res = mono_marshal_find_in_cache (cache, method)))
7565 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7566 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7570 return mono_cominterop_get_native_wrapper (method);
7572 g_assert_not_reached ();
7576 sig = mono_method_signature (method);
7578 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7579 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7582 if (!piinfo->addr) {
7584 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7585 exc_arg = "Method contains unsupported native code";
7587 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7589 piinfo->addr = mono_lookup_internal_call (method);
7593 /* hack - redirect certain string constructors to CreateString */
7594 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7595 g_assert (!pinvoke);
7596 g_assert (method->string_ctor);
7597 g_assert (sig->hasthis);
7599 /* CreateString returns a value */
7600 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7601 csig->ret = &mono_defaults.string_class->byval_arg;
7605 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7606 if (!strcmp ("CreateString", res->name) &&
7607 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7610 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7611 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7613 /* create a wrapper to preserve .ctor in stack trace */
7614 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7617 mono_mb_emit_byte (mb, CEE_LDARG_0);
7618 for (i = 1; i <= csig->param_count; i++)
7619 mono_mb_emit_ldarg (mb, i);
7620 mono_mb_emit_managed_call (mb, res, NULL);
7621 mono_mb_emit_byte (mb, CEE_RET);
7624 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7625 info->d.string_ctor.method = method;
7627 /* use native_wrapper_cache because internal calls are looked up there */
7628 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7629 csig->param_count + 1, info, NULL);
7636 /* exception will be thrown */
7637 piinfo->addr = NULL;
7638 g_warning ("cannot find CreateString for .ctor");
7641 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7643 mb->method->save_lmf = 1;
7646 * In AOT mode and embedding scenarios, it is possible that the icall is not
7647 * registered in the runtime doing the AOT compilation.
7649 if (!piinfo->addr && !aot) {
7651 mono_mb_emit_exception (mb, exc_class, exc_arg);
7653 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7654 info->d.managed_to_native.method = method;
7656 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7658 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7659 csig->param_count + 16, info, NULL);
7665 /* internal calls: we simply push all arguments and call the method (no conversions) */
7666 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7668 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7670 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7672 /* hack - string constructors returns a value */
7673 if (method->string_ctor)
7674 csig->ret = &mono_defaults.string_class->byval_arg;
7681 * Add a null check since public icalls can be called with 'call' which
7682 * does no such check.
7684 mono_mb_emit_byte (mb, CEE_LDARG_0);
7685 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7686 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7687 mono_mb_patch_branch (mb, pos);
7689 mono_mb_emit_byte (mb, CEE_LDARG_0);
7692 for (i = 0; i < sig->param_count; i++)
7693 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7696 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7697 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7698 mono_mb_emit_calli (mb, csig);
7700 g_assert (piinfo->addr);
7701 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7703 if (check_exceptions)
7704 emit_thread_interrupt_checkpoint (mb);
7705 mono_mb_emit_byte (mb, CEE_RET);
7707 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7708 info->d.managed_to_native.method = method;
7710 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7712 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7721 g_assert (piinfo->addr);
7724 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7725 mono_method_get_marshal_info (method, mspecs);
7727 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7729 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7730 info->d.managed_to_native.method = method;
7732 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7734 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7739 for (i = sig->param_count; i >= 0; i--)
7741 mono_metadata_free_marshal_spec (mspecs [i]);
7745 /* mono_method_print_code (res); */
7751 * mono_marshal_get_native_func_wrapper:
7752 * @image: The image to use for memory allocation and for looking up custom marshallers.
7753 * @sig: The signature of the function
7754 * @func: The native function to wrap
7756 * Returns a wrapper method around native functions, similar to the pinvoke
7760 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7761 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7763 MonoMethodSignature *csig;
7765 SignaturePointerPair key, *new_key;
7766 MonoMethodBuilder *mb;
7775 // Generic types are not safe to place in MonoImage caches.
7776 g_assert (!sig->is_inflated);
7778 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7779 if ((res = mono_marshal_find_in_cache (cache, &key)))
7782 name = g_strdup_printf ("wrapper_native_%p", func);
7783 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7784 mb->method->save_lmf = 1;
7787 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7790 csig = mono_metadata_signature_dup_full (image, sig);
7793 new_key = g_new (SignaturePointerPair,1);
7794 new_key->sig = csig;
7795 new_key->pointer = func;
7797 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7803 mono_marshal_set_wrapper_info (res, NULL);
7809 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7813 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7815 MonoMethodSignature *sig, *csig;
7816 MonoMethodBuilder *mb;
7821 MonoMethodPInvoke mpiinfo;
7822 MonoMethodPInvoke *piinfo = &mpiinfo;
7823 MonoMarshalSpec **mspecs;
7824 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7825 MonoImage *image = invoke->klass->image;
7828 // FIXME: include UnmanagedFunctionPointerAttribute info
7831 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7833 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7835 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7838 memset (&mpiinfo, 0, sizeof (mpiinfo));
7839 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7841 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7842 mono_method_get_marshal_info (invoke, mspecs);
7843 /* Freed below so don't alloc from mempool */
7844 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7847 name = g_strdup_printf ("wrapper_aot_native");
7848 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7849 mb->method->save_lmf = 1;
7852 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7855 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7856 info->d.managed_to_native.method = invoke;
7858 g_assert (!sig->hasthis);
7859 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7861 res = mono_mb_create_and_cache_full (cache, invoke,
7862 mb, csig, csig->param_count + 16,
7866 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7868 mono_metadata_free_marshal_spec (mspecs [i]);
7876 * mono_marshal_emit_managed_wrapper:
7878 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7879 * the delegate which wraps the managed method to be called. For closed delegates,
7880 * it could have fewer parameters than the method it wraps.
7881 * THIS_LOC is the memory location where the target of the delegate is stored.
7884 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7887 MonoMethodSignature *sig, *csig;
7893 /* we first do all conversions */
7894 for (i = 0; i < sig->param_count; i ++) {
7895 MonoType *t = sig->params [i];
7898 case MONO_TYPE_OBJECT:
7899 case MONO_TYPE_CLASS:
7900 case MONO_TYPE_VALUETYPE:
7901 case MONO_TYPE_ARRAY:
7902 case MONO_TYPE_SZARRAY:
7903 case MONO_TYPE_STRING:
7904 case MONO_TYPE_BOOLEAN:
7905 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7909 if (!sig->ret->byref) {
7910 switch (sig->ret->type) {
7911 case MONO_TYPE_STRING:
7912 csig->ret = &mono_defaults.int_class->byval_arg;
7919 MonoMethodSignature *sig, *csig;
7920 MonoExceptionClause *clause;
7923 gboolean closed = FALSE;
7928 /* allocate local 0 (pointer) src_ptr */
7929 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7930 /* allocate local 1 (pointer) dst_ptr */
7931 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7932 /* allocate local 2 (boolean) delete_old */
7933 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7935 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7936 /* Closed delegate */
7937 g_assert (sig->param_count == invoke_sig->param_count + 1);
7939 /* Use a new signature without the first argument */
7940 sig = mono_metadata_signature_dup (sig);
7941 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7942 sig->param_count --;
7945 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7946 /* allocate local 3 to store the return value */
7947 mono_mb_add_local (mb, sig->ret);
7950 if (MONO_TYPE_ISSTRUCT (sig->ret))
7951 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7955 * mono_jit_attach ();
7959 * ret = method (...);
7961 * mono_jit_detach ();
7967 if (mono_threads_is_coop_enabled ()) {
7968 clause = g_new0 (MonoExceptionClause, 1);
7969 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7972 mono_mb_emit_icon (mb, 0);
7973 mono_mb_emit_stloc (mb, 2);
7975 if (mono_threads_is_coop_enabled ()) {
7977 clause->try_offset = mono_mb_get_label (mb);
7981 * Might need to attach the thread to the JIT or change the
7982 * domain for the callback.
7984 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7986 * mono_jit_attach ();
7988 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7989 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7991 /* <interrupt check> */
7992 emit_thread_interrupt_checkpoint (mb);
7994 /* we first do all conversions */
7995 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7996 for (i = 0; i < sig->param_count; i ++) {
7997 MonoType *t = sig->params [i];
8000 case MONO_TYPE_OBJECT:
8001 case MONO_TYPE_CLASS:
8002 case MONO_TYPE_VALUETYPE:
8003 case MONO_TYPE_ARRAY:
8004 case MONO_TYPE_SZARRAY:
8005 case MONO_TYPE_STRING:
8006 case MONO_TYPE_BOOLEAN:
8007 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8017 if (target_handle) {
8018 mono_mb_emit_icon (mb, (gint32)target_handle);
8019 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8022 g_assert_not_reached ();
8024 } else if (closed) {
8025 mono_mb_emit_icon (mb, (gint32)target_handle);
8026 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8029 for (i = 0; i < sig->param_count; i++) {
8030 MonoType *t = sig->params [i];
8032 if (tmp_locals [i]) {
8034 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8036 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8039 mono_mb_emit_ldarg (mb, i);
8042 /* ret = method (...) */
8043 mono_mb_emit_managed_call (mb, method, NULL);
8045 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8046 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8047 mono_class_init (klass);
8048 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8049 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8050 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8051 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8052 mono_mb_emit_stloc (mb, m->vtaddr_var);
8056 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8057 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8058 } else if (!sig->ret->byref) {
8059 switch (sig->ret->type) {
8060 case MONO_TYPE_VOID:
8062 case MONO_TYPE_BOOLEAN:
8065 case MONO_TYPE_CHAR:
8077 case MONO_TYPE_OBJECT:
8078 mono_mb_emit_stloc (mb, 3);
8080 case MONO_TYPE_STRING:
8081 csig->ret = &mono_defaults.int_class->byval_arg;
8082 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8084 case MONO_TYPE_VALUETYPE:
8085 case MONO_TYPE_CLASS:
8086 case MONO_TYPE_SZARRAY:
8087 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8090 g_warning ("return type 0x%02x unknown", sig->ret->type);
8091 g_assert_not_reached ();
8094 mono_mb_emit_stloc (mb, 3);
8097 /* Convert byref arguments back */
8098 for (i = 0; i < sig->param_count; i ++) {
8099 MonoType *t = sig->params [i];
8100 MonoMarshalSpec *spec = mspecs [i + 1];
8102 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8103 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8105 else if (t->byref) {
8107 case MONO_TYPE_CLASS:
8108 case MONO_TYPE_VALUETYPE:
8109 case MONO_TYPE_OBJECT:
8110 case MONO_TYPE_STRING:
8111 case MONO_TYPE_BOOLEAN:
8112 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8118 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8119 /* The [Out] information is encoded in the delegate signature */
8121 case MONO_TYPE_SZARRAY:
8122 case MONO_TYPE_CLASS:
8123 case MONO_TYPE_VALUETYPE:
8124 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8127 g_assert_not_reached ();
8132 if (mono_threads_is_coop_enabled ()) {
8133 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8136 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8137 clause->handler_offset = mono_mb_get_label (mb);
8141 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8143 * mono_jit_detach ();
8145 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8146 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8148 if (mono_threads_is_coop_enabled ()) {
8149 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8151 /* } [endfinally] */
8152 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8154 mono_mb_patch_branch (mb, leave_pos);
8158 if (m->retobj_var) {
8159 mono_mb_emit_ldloc (mb, m->retobj_var);
8160 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8161 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8164 if (!MONO_TYPE_IS_VOID(sig->ret))
8165 mono_mb_emit_ldloc (mb, 3);
8166 mono_mb_emit_byte (mb, CEE_RET);
8169 if (mono_threads_is_coop_enabled ()) {
8170 mono_mb_set_clauses (mb, 1, clause);
8179 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8181 MonoMethodSignature *sig;
8186 * Under windows, delegates passed to native code must use the STDCALL
8187 * calling convention.
8189 csig->call_convention = MONO_CALL_STDCALL;
8192 sig = mono_method_signature (method);
8194 /* Change default calling convention if needed */
8195 /* Why is this a modopt ? */
8196 if (sig->ret && sig->ret->num_mods) {
8197 for (i = 0; i < sig->ret->num_mods; ++i) {
8199 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8200 g_assert (mono_error_ok (&error));
8201 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8202 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8203 csig->call_convention = MONO_CALL_C;
8204 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8205 csig->call_convention = MONO_CALL_STDCALL;
8206 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8207 csig->call_convention = MONO_CALL_FASTCALL;
8208 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8209 csig->call_convention = MONO_CALL_THISCALL;
8216 * generates IL code to call managed methods from unmanaged code
8217 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8220 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8223 MonoMethodSignature *sig, *csig, *invoke_sig;
8224 MonoMethodBuilder *mb;
8225 MonoMethod *res, *invoke;
8226 MonoMarshalSpec **mspecs;
8227 MonoMethodPInvoke piinfo;
8230 EmitMarshalContext m;
8232 g_assert (method != NULL);
8233 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8236 * FIXME: Should cache the method+delegate type pair, since the same method
8237 * could be called with different delegates, thus different marshalling
8240 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8242 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8245 invoke = mono_get_delegate_invoke (delegate_klass);
8246 invoke_sig = mono_method_signature (invoke);
8248 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8249 mono_method_get_marshal_info (invoke, mspecs);
8251 sig = mono_method_signature (method);
8253 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8255 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8256 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8258 /* we copy the signature, so that we can modify it */
8260 /* Need to free this later */
8261 csig = mono_metadata_signature_dup (invoke_sig);
8263 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8267 memset (&m, 0, sizeof (m));
8273 m.image = method->klass->image;
8275 mono_marshal_set_callconv_from_modopt (invoke, csig);
8277 /* The attribute is only available in Net 2.0 */
8278 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8279 MonoCustomAttrInfo *cinfo;
8280 MonoCustomAttrEntry *attr;
8283 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8284 * contents of the attribute without constructing it, as that might not be
8285 * possible when running in cross-compiling mode.
8287 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8288 mono_error_assert_ok (&error);
8291 for (i = 0; i < cinfo->num_attrs; ++i) {
8292 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8293 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8294 attr = &cinfo->attrs [i];
8300 MonoArray *typed_args, *named_args;
8301 CattrNamedArg *arginfo;
8305 MonoBoolean set_last_error = 0;
8308 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8309 g_assert (mono_error_ok (&error));
8310 g_assert (mono_array_length (typed_args) == 1);
8313 o = mono_array_get (typed_args, MonoObject*, 0);
8314 call_conv = *(gint32*)mono_object_unbox (o);
8317 for (i = 0; i < mono_array_length (named_args); ++i) {
8318 CattrNamedArg *narg = &arginfo [i];
8320 o = mono_array_get (named_args, MonoObject*, i);
8322 g_assert (narg->field);
8323 if (!strcmp (narg->field->name, "CharSet")) {
8324 charset = *(gint32*)mono_object_unbox (o);
8325 } else if (!strcmp (narg->field->name, "SetLastError")) {
8326 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8327 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8328 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8329 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8330 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8332 g_assert_not_reached ();
8338 memset (&piinfo, 0, sizeof (piinfo));
8340 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8342 csig->call_convention = call_conv - 1;
8345 if (cinfo && !cinfo->cached)
8346 mono_custom_attrs_free (cinfo);
8349 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8351 if (!target_handle) {
8354 // FIXME: Associate it with the method+delegate_klass pair
8355 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8356 info->d.native_to_managed.method = method;
8357 info->d.native_to_managed.klass = delegate_klass;
8359 res = mono_mb_create_and_cache_full (cache, method,
8360 mb, csig, sig->param_count + 16,
8366 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8370 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8372 mono_metadata_free_marshal_spec (mspecs [i]);
8375 /* mono_method_print_code (res); */
8381 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8385 MonoMethodSignature *sig;
8386 MonoMethodBuilder *mb;
8391 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8393 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8396 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8397 MonoMethodSignature *csig;
8398 MonoMarshalSpec **mspecs;
8399 EmitMarshalContext m;
8401 sig = mono_method_signature (method);
8402 g_assert (!sig->hasthis);
8404 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8405 mono_method_get_marshal_info (method, mspecs);
8407 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8408 csig = mono_metadata_signature_dup_full (image, sig);
8412 memset (&m, 0, sizeof (m));
8420 mono_marshal_set_callconv_from_modopt (method, csig);
8422 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8424 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8429 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8432 for (i = sig->param_count; i >= 0; i--)
8434 mono_metadata_free_marshal_spec (mspecs [i]);
8437 return mono_compile_method (method);
8440 sig = mono_method_signature (method);
8441 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8443 param_count = sig->param_count + sig->hasthis;
8445 for (i = 0; i < param_count; i++)
8446 mono_mb_emit_ldarg (mb, i);
8448 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8449 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8451 mono_mb_emit_op (mb, CEE_CALL, method);
8452 mono_mb_emit_byte (mb, CEE_RET);
8457 method = mono_mb_create (mb, sig, param_count, NULL);
8460 return mono_compile_method (method);
8466 * The code directly following this is the cache hit, value positive branch
8468 * This function takes a new method builder with 0 locals and adds two locals
8469 * to create multiple out-branches and the fall through state of having the object
8470 * on the stack after a cache miss
8473 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8474 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8475 MonoMethodBuilder *mb)
8479 /* allocate local 0 (pointer) obj_vtable */
8480 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8481 /* allocate local 1 (pointer) cached_vtable */
8482 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8485 mono_mb_emit_ldarg (mb, obj_arg_position);
8486 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8488 /*obj_vtable = obj->vtable;*/
8489 mono_mb_emit_ldarg (mb, obj_arg_position);
8490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8491 mono_mb_emit_byte (mb, CEE_LDIND_I);
8492 mono_mb_emit_stloc (mb, 0);
8494 /* cached_vtable = *cache*/
8495 mono_mb_emit_ldarg (mb, cache_arg_position);
8496 mono_mb_emit_byte (mb, CEE_LDIND_I);
8497 mono_mb_emit_stloc (mb, 1);
8499 mono_mb_emit_ldloc (mb, 1);
8500 mono_mb_emit_byte (mb, CEE_LDC_I4);
8501 mono_mb_emit_i4 (mb, ~0x1);
8502 mono_mb_emit_byte (mb, CEE_CONV_I);
8503 mono_mb_emit_byte (mb, CEE_AND);
8504 mono_mb_emit_ldloc (mb, 0);
8505 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8506 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8508 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8509 mono_mb_emit_ldloc (mb, 1);
8510 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8511 mono_mb_emit_byte (mb, CEE_CONV_U);
8512 mono_mb_emit_byte (mb, CEE_AND);
8513 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8514 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8517 mono_mb_patch_branch (mb, cache_miss_pos);
8520 mono_mb_emit_ldarg (mb, obj_arg_position);
8521 mono_mb_emit_ldarg (mb, class_arg_position);
8522 mono_mb_emit_ldarg (mb, cache_arg_position);
8523 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8526 #endif /* DISABLE_JIT */
8529 * This does the equivalent of mono_object_castclass_with_cache.
8530 * The wrapper info for the wrapper is a WrapperInfo structure.
8533 mono_marshal_get_castclass_with_cache (void)
8535 static MonoMethod *cached;
8537 MonoMethodBuilder *mb;
8538 MonoMethodSignature *sig;
8539 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8542 const int obj_arg_position = 0;
8543 const int class_arg_position = 1;
8544 const int cache_arg_position = 2;
8549 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8550 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8551 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8552 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8553 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8554 sig->ret = &mono_defaults.object_class->byval_arg;
8558 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8559 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8560 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8563 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8564 mono_mb_emit_ldarg (mb, obj_arg_position);
8565 mono_mb_emit_byte (mb, CEE_RET);
8568 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8569 mono_mb_patch_branch (mb, invalid_cast_pos);
8570 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8573 mono_mb_patch_branch (mb, return_null_pos);
8574 mono_mb_emit_byte (mb, CEE_LDNULL);
8575 mono_mb_emit_byte (mb, CEE_RET);
8576 #endif /* DISABLE_JIT */
8578 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8579 res = mono_mb_create (mb, sig, 8, info);
8582 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8583 mono_free_method (res);
8584 mono_metadata_free_method_signature (sig);
8592 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8594 MonoObject *isinst = mono_object_isinst (obj, klass);
8596 #ifndef DISABLE_REMOTING
8597 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8601 uintptr_t cache_update = (uintptr_t)obj->vtable;
8603 cache_update = cache_update | 0x1;
8605 *cache = cache_update;
8611 * This does the equivalent of mono_object_isinst_with_cache.
8612 * The wrapper info for the wrapper is a WrapperInfo structure.
8615 mono_marshal_get_isinst_with_cache (void)
8617 static MonoMethod *cached;
8619 MonoMethodBuilder *mb;
8620 MonoMethodSignature *sig;
8621 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8624 const int obj_arg_position = 0;
8625 const int class_arg_position = 1;
8626 const int cache_arg_position = 2;
8631 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8632 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8634 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8636 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8638 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8639 sig->ret = &mono_defaults.object_class->byval_arg;
8643 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8644 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8645 // Return the object gotten via the slow path.
8646 mono_mb_emit_byte (mb, CEE_RET);
8649 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8650 mono_mb_patch_branch (mb, return_null_pos);
8651 mono_mb_emit_byte (mb, CEE_LDNULL);
8652 mono_mb_emit_byte (mb, CEE_RET);
8655 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8656 mono_mb_emit_ldarg (mb, 0);
8657 mono_mb_emit_byte (mb, CEE_RET);
8660 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8661 res = mono_mb_create (mb, sig, 8, info);
8664 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8665 mono_free_method (res);
8666 mono_metadata_free_method_signature (sig);
8674 * mono_marshal_get_isinst:
8675 * @klass: the type of the field
8677 * This method generates a function which can be used to check if an object is
8678 * an instance of the given type, icluding the case where the object is a proxy.
8679 * The generated function has the following signature:
8680 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8683 mono_marshal_get_isinst (MonoClass *klass)
8685 static MonoMethodSignature *isint_sig = NULL;
8689 int pos_was_ok, pos_end;
8690 #ifndef DISABLE_REMOTING
8691 int pos_end2, pos_failed;
8694 MonoMethodBuilder *mb;
8696 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8697 if ((res = mono_marshal_find_in_cache (cache, klass)))
8701 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8702 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8703 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8704 isint_sig->pinvoke = 0;
8707 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8708 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8711 mb->method->save_lmf = 1;
8714 /* check if the object is a proxy that needs special cast */
8715 mono_mb_emit_ldarg (mb, 0);
8716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8717 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8719 /* The result of MONO_CISINST can be:
8720 0) the type check succeeded
8721 1) the type check did not succeed
8722 2) a CanCastTo call is needed */
8723 #ifndef DISABLE_REMOTING
8724 mono_mb_emit_byte (mb, CEE_DUP);
8725 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8727 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8728 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8730 /* get the real proxy from the transparent proxy*/
8732 mono_mb_emit_ldarg (mb, 0);
8733 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8734 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8738 mono_mb_patch_branch (mb, pos_failed);
8739 mono_mb_emit_byte (mb, CEE_LDNULL);
8740 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8744 mono_mb_patch_branch (mb, pos_was_ok);
8745 mono_mb_emit_byte (mb, CEE_POP);
8746 mono_mb_emit_ldarg (mb, 0);
8750 mono_mb_patch_branch (mb, pos_end);
8751 mono_mb_patch_branch (mb, pos_end2);
8752 mono_mb_emit_byte (mb, CEE_RET);
8754 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8758 mono_mb_emit_byte (mb, CEE_LDNULL);
8759 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8763 mono_mb_patch_branch (mb, pos_was_ok);
8764 mono_mb_emit_ldarg (mb, 0);
8768 mono_mb_patch_branch (mb, pos_end);
8769 mono_mb_emit_byte (mb, CEE_RET);
8770 #endif /* DISABLE_REMOTING */
8771 #endif /* DISABLE_JIT */
8773 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8774 info->d.proxy.klass = klass;
8775 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8782 * mono_marshal_get_castclass:
8783 * @klass: the type of the field
8785 * This method generates a function which can be used to cast an object to
8786 * an instance of the given type, icluding the case where the object is a proxy.
8787 * The generated function has the following signature:
8788 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8789 * The wrapper info for the wrapper is a WrapperInfo structure.
8792 mono_marshal_get_castclass (MonoClass *klass)
8794 static MonoMethodSignature *castclass_sig = NULL;
8797 #ifndef DISABLE_REMOTING
8798 int pos_was_ok, pos_was_ok2;
8801 MonoMethodBuilder *mb;
8804 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8805 if ((res = mono_marshal_find_in_cache (cache, klass)))
8808 if (!castclass_sig) {
8809 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8810 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8811 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8812 castclass_sig->pinvoke = 0;
8815 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8816 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8819 mb->method->save_lmf = 1;
8822 /* check if the object is a proxy that needs special cast */
8823 mono_mb_emit_ldarg (mb, 0);
8824 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8825 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8827 /* The result of MONO_CCASTCLASS can be:
8828 0) the cast is valid
8829 1) cast of unknown proxy type
8830 or an exception if the cast is is invalid
8832 #ifndef DISABLE_REMOTING
8833 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8835 /* get the real proxy from the transparent proxy*/
8837 mono_mb_emit_ldarg (mb, 0);
8838 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8839 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8842 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8845 mono_mb_patch_branch (mb, pos_was_ok);
8846 mono_mb_patch_branch (mb, pos_was_ok2);
8848 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8849 mono_mb_emit_byte (mb, CEE_POP);
8850 #endif /* DISABLE_REMOTING */
8852 mono_mb_emit_ldarg (mb, 0);
8855 mono_mb_emit_byte (mb, CEE_RET);
8856 #endif /* DISABLE_JIT */
8858 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8860 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8868 * mono_marshal_get_struct_to_ptr:
8871 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8872 * The wrapper info for the wrapper is a WrapperInfo structure.
8875 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8877 MonoMethodBuilder *mb;
8878 static MonoMethod *stoptr = NULL;
8882 g_assert (klass != NULL);
8884 mono_marshal_load_type_info (klass);
8886 if (klass->marshal_info->str_to_ptr)
8887 return klass->marshal_info->str_to_ptr;
8890 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8893 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8896 if (klass->blittable) {
8897 mono_mb_emit_byte (mb, CEE_LDARG_1);
8898 mono_mb_emit_byte (mb, CEE_LDARG_0);
8899 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8900 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8901 mono_mb_emit_byte (mb, CEE_PREFIX1);
8902 mono_mb_emit_byte (mb, CEE_CPBLK);
8905 /* allocate local 0 (pointer) src_ptr */
8906 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8907 /* allocate local 1 (pointer) dst_ptr */
8908 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8909 /* allocate local 2 (boolean) delete_old */
8910 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8911 mono_mb_emit_byte (mb, CEE_LDARG_2);
8912 mono_mb_emit_stloc (mb, 2);
8914 /* initialize src_ptr to point to the start of object data */
8915 mono_mb_emit_byte (mb, CEE_LDARG_0);
8916 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8917 mono_mb_emit_stloc (mb, 0);
8919 /* initialize dst_ptr */
8920 mono_mb_emit_byte (mb, CEE_LDARG_1);
8921 mono_mb_emit_stloc (mb, 1);
8923 emit_struct_conv (mb, klass, FALSE);
8926 mono_mb_emit_byte (mb, CEE_RET);
8928 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8929 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8932 mono_marshal_lock ();
8933 if (!klass->marshal_info->str_to_ptr)
8934 klass->marshal_info->str_to_ptr = res;
8936 res = klass->marshal_info->str_to_ptr;
8937 mono_marshal_unlock ();
8942 * mono_marshal_get_ptr_to_struct:
8945 * generates IL code for PtrToStructure (IntPtr src, object structure)
8946 * The wrapper info for the wrapper is a WrapperInfo structure.
8949 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8951 MonoMethodBuilder *mb;
8952 static MonoMethodSignature *ptostr = NULL;
8956 g_assert (klass != NULL);
8958 mono_marshal_load_type_info (klass);
8960 if (klass->marshal_info->ptr_to_str)
8961 return klass->marshal_info->ptr_to_str;
8964 MonoMethodSignature *sig;
8966 /* Create the signature corresponding to
8967 static void PtrToStructure (IntPtr ptr, object structure);
8968 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8969 sig = mono_create_icall_signature ("void ptr object");
8970 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8972 mono_memory_barrier ();
8976 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8979 if (klass->blittable) {
8980 mono_mb_emit_byte (mb, CEE_LDARG_1);
8981 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8982 mono_mb_emit_byte (mb, CEE_LDARG_0);
8983 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8984 mono_mb_emit_byte (mb, CEE_PREFIX1);
8985 mono_mb_emit_byte (mb, CEE_CPBLK);
8988 /* allocate local 0 (pointer) src_ptr */
8989 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8990 /* allocate local 1 (pointer) dst_ptr */
8991 mono_mb_add_local (mb, &klass->this_arg);
8993 /* initialize src_ptr to point to the start of object data */
8994 mono_mb_emit_byte (mb, CEE_LDARG_0);
8995 mono_mb_emit_stloc (mb, 0);
8997 /* initialize dst_ptr */
8998 mono_mb_emit_byte (mb, CEE_LDARG_1);
8999 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9000 mono_mb_emit_stloc (mb, 1);
9002 emit_struct_conv (mb, klass, TRUE);
9005 mono_mb_emit_byte (mb, CEE_RET);
9007 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9008 res = mono_mb_create (mb, ptostr, 0, info);
9011 mono_marshal_lock ();
9012 if (!klass->marshal_info->ptr_to_str)
9013 klass->marshal_info->ptr_to_str = res;
9015 res = klass->marshal_info->ptr_to_str;
9016 mono_marshal_unlock ();
9021 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9022 * This is used to avoid infinite recursion since it is hard to determine where to
9023 * replace a method with its synchronized wrapper, and where not.
9024 * The runtime should execute METHOD instead of the wrapper.
9025 * The wrapper info for the wrapper is a WrapperInfo structure.
9028 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9030 MonoMethodBuilder *mb;
9032 MonoMethodSignature *sig;
9034 MonoGenericContext *ctx = NULL;
9035 MonoGenericContainer *container = NULL;
9037 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9038 ctx = &((MonoMethodInflated*)method)->context;
9039 method = ((MonoMethodInflated*)method)->declaring;
9040 container = mono_method_get_generic_container (method);
9042 container = method->klass->generic_container;
9043 g_assert (container);
9046 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9048 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9049 mono_mb_emit_byte (mb, CEE_RET);
9051 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9053 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9054 info->d.synchronized_inner.method = method;
9055 res = mono_mb_create (mb, sig, 0, info);
9059 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9060 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9066 * generates IL code for the synchronized wrapper: the generated method
9067 * calls METHOD while locking 'this' or the parent type.
9070 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9072 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9073 MonoMethodSignature *sig;
9074 MonoExceptionClause *clause;
9075 MonoMethodBuilder *mb;
9079 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9080 MonoGenericContext *ctx = NULL;
9081 MonoMethod *orig_method = NULL;
9082 MonoGenericContainer *container = NULL;
9086 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9089 /* FIXME: Support generic methods too */
9090 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9091 orig_method = method;
9092 ctx = &((MonoMethodInflated*)method)->context;
9093 method = ((MonoMethodInflated*)method)->declaring;
9094 container = mono_method_get_generic_container (method);
9096 container = method->klass->generic_container;
9097 g_assert (container);
9104 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9105 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9109 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9110 if ((res = mono_marshal_find_in_cache (cache, method)))
9114 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9117 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9119 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9120 info->d.synchronized.method = method;
9123 mb->skip_visibility = 1;
9125 if (!MONO_TYPE_IS_VOID (sig->ret))
9126 ret_local = mono_mb_add_local (mb, sig->ret);
9129 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9130 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9132 /* This will throw the type load exception when the wrapper is compiled */
9133 mono_mb_emit_byte (mb, CEE_LDNULL);
9134 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9135 mono_mb_emit_byte (mb, CEE_POP);
9137 if (!MONO_TYPE_IS_VOID (sig->ret))
9138 mono_mb_emit_ldloc (mb, ret_local);
9139 mono_mb_emit_byte (mb, CEE_RET);
9142 res = mono_mb_create_and_cache_full (cache, method,
9143 mb, sig, sig->param_count + 16, info, NULL);
9151 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9152 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9154 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9155 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9158 mono_marshal_lock ();
9160 if (!enter_method) {
9161 MonoMethodDesc *desc;
9163 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9164 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9165 g_assert (enter_method);
9166 mono_method_desc_free (desc);
9168 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9169 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9170 g_assert (exit_method);
9171 mono_method_desc_free (desc);
9173 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9174 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9175 g_assert (gettypefromhandle_method);
9176 mono_method_desc_free (desc);
9179 mono_marshal_unlock ();
9182 /* Push this or the type object */
9183 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9184 /* We have special handling for this in the JIT */
9185 int index = mono_mb_add_data (mb, method->klass);
9186 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9187 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9188 mono_mb_emit_i4 (mb, index);
9190 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9193 mono_mb_emit_ldarg (mb, 0);
9194 mono_mb_emit_stloc (mb, this_local);
9196 /* Call Monitor::Enter() */
9197 mono_mb_emit_ldloc (mb, this_local);
9198 mono_mb_emit_ldloc_addr (mb, taken_local);
9199 mono_mb_emit_managed_call (mb, enter_method, NULL);
9201 clause->try_offset = mono_mb_get_label (mb);
9203 /* Call the method */
9205 mono_mb_emit_ldarg (mb, 0);
9206 for (i = 0; i < sig->param_count; i++)
9207 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9211 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9212 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9214 mono_mb_emit_managed_call (mb, method, NULL);
9217 if (!MONO_TYPE_IS_VOID (sig->ret))
9218 mono_mb_emit_stloc (mb, ret_local);
9220 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9222 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9223 clause->handler_offset = mono_mb_get_label (mb);
9225 /* Call Monitor::Exit() if needed */
9226 mono_mb_emit_ldloc (mb, taken_local);
9227 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9228 mono_mb_emit_ldloc (mb, this_local);
9229 mono_mb_emit_managed_call (mb, exit_method, NULL);
9230 mono_mb_patch_branch (mb, pos2);
9231 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9233 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9235 mono_mb_patch_branch (mb, pos);
9236 if (!MONO_TYPE_IS_VOID (sig->ret))
9237 mono_mb_emit_ldloc (mb, ret_local);
9238 mono_mb_emit_byte (mb, CEE_RET);
9240 mono_mb_set_clauses (mb, 1, clause);
9245 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9246 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9248 res = mono_mb_create_and_cache_full (cache, method,
9249 mb, sig, sig->param_count + 16, info, NULL);
9258 * the returned method calls 'method' unboxing the this argument
9261 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9263 MonoMethodSignature *sig = mono_method_signature (method);
9265 MonoMethodBuilder *mb;
9270 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9272 if ((res = mono_marshal_find_in_cache (cache, method)))
9275 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9277 g_assert (sig->hasthis);
9280 mono_mb_emit_ldarg (mb, 0);
9281 mono_mb_emit_icon (mb, sizeof (MonoObject));
9282 mono_mb_emit_byte (mb, CEE_ADD);
9283 for (i = 0; i < sig->param_count; ++i)
9284 mono_mb_emit_ldarg (mb, i + 1);
9285 mono_mb_emit_managed_call (mb, method, NULL);
9286 mono_mb_emit_byte (mb, CEE_RET);
9289 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9290 info->d.unbox.method = method;
9292 res = mono_mb_create_and_cache_full (cache, method,
9293 mb, sig, sig->param_count + 16, info, NULL);
9296 /* mono_method_print_code (res); */
9302 STELEMREF_OBJECT, /*no check at all*/
9303 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9304 STELEMREF_CLASS, /*only the klass->parents check*/
9305 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9306 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9307 STELEMREF_KIND_COUNT
9310 static const char *strelemref_wrapper_name[] = {
9311 "object", "sealed_class", "class", "interface", "complex"
9315 is_monomorphic_array (MonoClass *klass)
9317 MonoClass *element_class;
9318 if (klass->rank != 1)
9321 element_class = klass->element_class;
9322 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9326 get_virtual_stelemref_kind (MonoClass *element_class)
9328 if (element_class == mono_defaults.object_class)
9329 return STELEMREF_OBJECT;
9330 if (is_monomorphic_array (element_class))
9331 return STELEMREF_SEALED_CLASS;
9332 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9333 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9334 #ifdef COMPRESSED_INTERFACE_BITMAP
9335 return STELEMREF_COMPLEX;
9337 return STELEMREF_INTERFACE;
9339 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9340 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9341 return STELEMREF_COMPLEX;
9342 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9343 return STELEMREF_SEALED_CLASS;
9344 return STELEMREF_CLASS;
9350 load_array_element_address (MonoMethodBuilder *mb)
9352 mono_mb_emit_ldarg (mb, 0);
9353 mono_mb_emit_ldarg (mb, 1);
9354 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9358 load_array_class (MonoMethodBuilder *mb, int aklass)
9360 mono_mb_emit_ldarg (mb, 0);
9361 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9362 mono_mb_emit_byte (mb, CEE_LDIND_I);
9363 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9364 mono_mb_emit_byte (mb, CEE_LDIND_I);
9365 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9366 mono_mb_emit_byte (mb, CEE_LDIND_I);
9367 mono_mb_emit_stloc (mb, aklass);
9371 load_value_class (MonoMethodBuilder *mb, int vklass)
9373 mono_mb_emit_ldarg (mb, 2);
9374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9375 mono_mb_emit_byte (mb, CEE_LDIND_I);
9376 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9377 mono_mb_emit_byte (mb, CEE_LDIND_I);
9378 mono_mb_emit_stloc (mb, vklass);
9384 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9386 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9387 printf ("slow vstore of %s\n", name);
9393 * The wrapper info for the wrapper is a WrapperInfo structure.
9396 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9397 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9398 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9399 * - Add a case for arrays of arrays.
9402 get_virtual_stelemref_wrapper (int kind)
9404 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9405 static MonoMethodSignature *signature;
9406 MonoMethodBuilder *mb;
9409 const char *param_names [16];
9411 int aklass, vklass, vtable, uiid;
9412 int array_slot_addr;
9415 if (cached_methods [kind])
9416 return cached_methods [kind];
9418 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9419 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9423 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9425 /* void this::stelemref (size_t idx, void* value) */
9426 sig->ret = &mono_defaults.void_class->byval_arg;
9427 sig->hasthis = TRUE;
9428 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9429 sig->params [1] = &mono_defaults.object_class->byval_arg;
9434 param_names [0] = "index";
9435 param_names [1] = "value";
9436 mono_mb_set_param_names (mb, param_names);
9438 /*For now simply call plain old stelemref*/
9440 case STELEMREF_OBJECT:
9441 /* ldelema (implicit bound check) */
9442 load_array_element_address (mb);
9444 mono_mb_emit_ldarg (mb, 2);
9445 mono_mb_emit_byte (mb, CEE_STIND_REF);
9446 mono_mb_emit_byte (mb, CEE_RET);
9449 case STELEMREF_COMPLEX:
9451 <ldelema (bound check)>
9454 if (!mono_object_isinst (value, aklass))
9458 *array_slot_addr = value;
9461 throw new ArrayTypeMismatchException ();
9464 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9465 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9469 /*Use this to debug/record stores that are going thru the slow path*/
9470 MonoMethodSignature *csig;
9471 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9472 csig->ret = &mono_defaults.void_class->byval_arg;
9473 csig->params [0] = &mono_defaults.object_class->byval_arg;
9474 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9475 csig->params [2] = &mono_defaults.object_class->byval_arg;
9476 mono_mb_emit_ldarg (mb, 0);
9477 mono_mb_emit_ldarg (mb, 1);
9478 mono_mb_emit_ldarg (mb, 2);
9479 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9483 /* ldelema (implicit bound check) */
9484 load_array_element_address (mb);
9485 mono_mb_emit_stloc (mb, array_slot_addr);
9487 /* if (!value) goto do_store */
9488 mono_mb_emit_ldarg (mb, 2);
9489 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9491 /* aklass = array->vtable->klass->element_class */
9492 load_array_class (mb, aklass);
9494 /*if (mono_object_isinst (value, aklass)) */
9495 mono_mb_emit_ldarg (mb, 2);
9496 mono_mb_emit_ldloc (mb, aklass);
9497 mono_mb_emit_icall (mb, mono_object_isinst);
9498 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9501 mono_mb_patch_branch (mb, b1);
9502 mono_mb_emit_ldloc (mb, array_slot_addr);
9503 mono_mb_emit_ldarg (mb, 2);
9504 mono_mb_emit_byte (mb, CEE_STIND_REF);
9505 mono_mb_emit_byte (mb, CEE_RET);
9508 mono_mb_patch_branch (mb, b2);
9510 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9513 case STELEMREF_SEALED_CLASS:
9515 <ldelema (bound check)>
9519 aklass = array->vtable->klass->element_class;
9520 vklass = value->vtable->klass;
9522 if (vklass != aklass)
9526 *array_slot_addr = value;
9529 throw new ArrayTypeMismatchException ();
9531 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9532 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9533 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9536 /* ldelema (implicit bound check) */
9537 load_array_element_address (mb);
9538 mono_mb_emit_stloc (mb, array_slot_addr);
9540 /* if (!value) goto do_store */
9541 mono_mb_emit_ldarg (mb, 2);
9542 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9544 /* aklass = array->vtable->klass->element_class */
9545 load_array_class (mb, aklass);
9547 /* vklass = value->vtable->klass */
9548 load_value_class (mb, vklass);
9550 /*if (vklass != aklass) goto do_exception; */
9551 mono_mb_emit_ldloc (mb, aklass);
9552 mono_mb_emit_ldloc (mb, vklass);
9553 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9556 mono_mb_patch_branch (mb, b1);
9557 mono_mb_emit_ldloc (mb, array_slot_addr);
9558 mono_mb_emit_ldarg (mb, 2);
9559 mono_mb_emit_byte (mb, CEE_STIND_REF);
9560 mono_mb_emit_byte (mb, CEE_RET);
9563 mono_mb_patch_branch (mb, b2);
9564 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9567 case STELEMREF_CLASS:
9570 <ldelema (bound check)>
9574 aklass = array->vtable->klass->element_class;
9575 vklass = value->vtable->klass;
9577 if (vklass->idepth < aklass->idepth)
9580 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9584 *array_slot_addr = value;
9588 throw new ArrayTypeMismatchException ();
9590 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9591 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9592 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9594 /* ldelema (implicit bound check) */
9595 load_array_element_address (mb);
9596 mono_mb_emit_stloc (mb, array_slot_addr);
9598 /* if (!value) goto do_store */
9599 mono_mb_emit_ldarg (mb, 2);
9600 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9602 /* aklass = array->vtable->klass->element_class */
9603 load_array_class (mb, aklass);
9605 /* vklass = value->vtable->klass */
9606 load_value_class (mb, vklass);
9608 /*if (mono_object_isinst (value, aklass)) */
9609 mono_mb_emit_ldarg (mb, 2);
9610 mono_mb_emit_ldloc (mb, aklass);
9611 mono_mb_emit_icall (mb, mono_object_isinst);
9612 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9614 /* if (vklass->idepth < aklass->idepth) goto failue */
9615 mono_mb_emit_ldloc (mb, vklass);
9616 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9617 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9619 mono_mb_emit_ldloc (mb, aklass);
9620 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9621 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9623 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9625 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9626 mono_mb_emit_ldloc (mb, vklass);
9627 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9628 mono_mb_emit_byte (mb, CEE_LDIND_I);
9630 mono_mb_emit_ldloc (mb, aklass);
9631 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9632 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9633 mono_mb_emit_icon (mb, 1);
9634 mono_mb_emit_byte (mb, CEE_SUB);
9635 mono_mb_emit_icon (mb, sizeof (void*));
9636 mono_mb_emit_byte (mb, CEE_MUL);
9637 mono_mb_emit_byte (mb, CEE_ADD);
9638 mono_mb_emit_byte (mb, CEE_LDIND_I);
9640 mono_mb_emit_ldloc (mb, aklass);
9641 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9644 mono_mb_patch_branch (mb, b1);
9645 mono_mb_emit_ldloc (mb, array_slot_addr);
9646 mono_mb_emit_ldarg (mb, 2);
9647 mono_mb_emit_byte (mb, CEE_STIND_REF);
9648 mono_mb_emit_byte (mb, CEE_RET);
9651 mono_mb_patch_branch (mb, b2);
9652 mono_mb_patch_branch (mb, b3);
9654 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9657 case STELEMREF_INTERFACE:
9664 klass = array->obj.vtable->klass->element_class;
9666 uiid = klass->interface_id;
9667 if (uiid > vt->max_interface_id)
9669 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9672 mono_array_setref (array, index, value);
9675 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9677 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9678 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9679 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9680 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9682 /* ldelema (implicit bound check) */
9683 load_array_element_address (mb);
9684 mono_mb_emit_stloc (mb, array_slot_addr);
9686 /* if (!value) goto do_store */
9687 mono_mb_emit_ldarg (mb, 2);
9688 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9690 /* klass = array->vtable->klass->element_class */
9691 load_array_class (mb, aklass);
9693 /* vt = value->vtable */
9694 mono_mb_emit_ldarg (mb, 2);
9695 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9696 mono_mb_emit_byte (mb, CEE_LDIND_I);
9697 mono_mb_emit_stloc (mb, vtable);
9699 /* uiid = klass->interface_id; */
9700 mono_mb_emit_ldloc (mb, aklass);
9701 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9702 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9703 mono_mb_emit_stloc (mb, uiid);
9705 /*if (uiid > vt->max_interface_id)*/
9706 mono_mb_emit_ldloc (mb, uiid);
9707 mono_mb_emit_ldloc (mb, vtable);
9708 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9709 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9710 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9712 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9714 /*vt->interface_bitmap*/
9715 mono_mb_emit_ldloc (mb, vtable);
9716 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9717 mono_mb_emit_byte (mb, CEE_LDIND_I);
9720 mono_mb_emit_ldloc (mb, uiid);
9721 mono_mb_emit_icon (mb, 3);
9722 mono_mb_emit_byte (mb, CEE_SHR_UN);
9724 /*vt->interface_bitmap [(uiid) >> 3]*/
9725 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9726 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9728 /*(1 << ((uiid)&7)))*/
9729 mono_mb_emit_icon (mb, 1);
9730 mono_mb_emit_ldloc (mb, uiid);
9731 mono_mb_emit_icon (mb, 7);
9732 mono_mb_emit_byte (mb, CEE_AND);
9733 mono_mb_emit_byte (mb, CEE_SHL);
9735 /*bitwise and the whole thing*/
9736 mono_mb_emit_byte (mb, CEE_AND);
9737 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9740 mono_mb_patch_branch (mb, b1);
9741 mono_mb_emit_ldloc (mb, array_slot_addr);
9742 mono_mb_emit_ldarg (mb, 2);
9743 mono_mb_emit_byte (mb, CEE_STIND_REF);
9744 mono_mb_emit_byte (mb, CEE_RET);
9747 mono_mb_patch_branch (mb, b2);
9748 mono_mb_patch_branch (mb, b3);
9749 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9753 mono_mb_emit_ldarg (mb, 0);
9754 mono_mb_emit_ldarg (mb, 1);
9755 mono_mb_emit_ldarg (mb, 2);
9756 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9757 mono_mb_emit_byte (mb, CEE_RET);
9760 #endif /* DISABLE_JIT */
9761 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9762 info->d.virtual_stelemref.kind = kind;
9763 res = mono_mb_create (mb, signature, 4, info);
9764 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9766 mono_marshal_lock ();
9767 if (!cached_methods [kind]) {
9768 cached_methods [kind] = res;
9769 mono_marshal_unlock ();
9771 mono_marshal_unlock ();
9772 mono_free_method (res);
9776 return cached_methods [kind];
9780 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9784 g_assert (array_class->rank == 1);
9785 kind = get_virtual_stelemref_kind (array_class->element_class);
9787 return get_virtual_stelemref_wrapper (kind);
9791 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9796 *nwrappers = STELEMREF_KIND_COUNT;
9797 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9798 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9799 res [i] = get_virtual_stelemref_wrapper (i);
9804 * The wrapper info for the wrapper is a WrapperInfo structure.
9807 mono_marshal_get_stelemref (void)
9809 static MonoMethod* ret = NULL;
9810 MonoMethodSignature *sig;
9811 MonoMethodBuilder *mb;
9814 guint32 b1, b2, b3, b4;
9817 int array_slot_addr;
9822 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9825 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9827 /* void stelemref (void* array, int idx, void* value) */
9828 sig->ret = &mono_defaults.void_class->byval_arg;
9829 sig->params [0] = &mono_defaults.object_class->byval_arg;
9830 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9831 sig->params [2] = &mono_defaults.object_class->byval_arg;
9834 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9835 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9836 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9840 <ldelema (bound check)>
9844 aklass = array->vtable->klass->element_class;
9845 vklass = value->vtable->klass;
9847 if (vklass->idepth < aklass->idepth)
9850 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9854 *array_slot_addr = value;
9858 if (mono_object_isinst (value, aklass))
9861 throw new ArrayTypeMismatchException ();
9864 /* ldelema (implicit bound check) */
9865 mono_mb_emit_ldarg (mb, 0);
9866 mono_mb_emit_ldarg (mb, 1);
9867 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9868 mono_mb_emit_stloc (mb, array_slot_addr);
9870 /* if (!value) goto do_store */
9871 mono_mb_emit_ldarg (mb, 2);
9872 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9874 /* aklass = array->vtable->klass->element_class */
9875 mono_mb_emit_ldarg (mb, 0);
9876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9877 mono_mb_emit_byte (mb, CEE_LDIND_I);
9878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9879 mono_mb_emit_byte (mb, CEE_LDIND_I);
9880 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9881 mono_mb_emit_byte (mb, CEE_LDIND_I);
9882 mono_mb_emit_stloc (mb, aklass);
9884 /* vklass = value->vtable->klass */
9885 mono_mb_emit_ldarg (mb, 2);
9886 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9887 mono_mb_emit_byte (mb, CEE_LDIND_I);
9888 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9889 mono_mb_emit_byte (mb, CEE_LDIND_I);
9890 mono_mb_emit_stloc (mb, vklass);
9892 /* if (vklass->idepth < aklass->idepth) goto failue */
9893 mono_mb_emit_ldloc (mb, vklass);
9894 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9895 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9897 mono_mb_emit_ldloc (mb, aklass);
9898 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9899 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9901 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9903 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9904 mono_mb_emit_ldloc (mb, vklass);
9905 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9906 mono_mb_emit_byte (mb, CEE_LDIND_I);
9908 mono_mb_emit_ldloc (mb, aklass);
9909 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9910 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9911 mono_mb_emit_icon (mb, 1);
9912 mono_mb_emit_byte (mb, CEE_SUB);
9913 mono_mb_emit_icon (mb, sizeof (void*));
9914 mono_mb_emit_byte (mb, CEE_MUL);
9915 mono_mb_emit_byte (mb, CEE_ADD);
9916 mono_mb_emit_byte (mb, CEE_LDIND_I);
9918 mono_mb_emit_ldloc (mb, aklass);
9920 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9922 copy_pos = mono_mb_get_label (mb);
9924 mono_mb_patch_branch (mb, b1);
9925 mono_mb_emit_ldloc (mb, array_slot_addr);
9926 mono_mb_emit_ldarg (mb, 2);
9927 mono_mb_emit_byte (mb, CEE_STIND_REF);
9929 mono_mb_emit_byte (mb, CEE_RET);
9932 mono_mb_patch_branch (mb, b2);
9933 mono_mb_patch_branch (mb, b3);
9935 mono_mb_emit_ldarg (mb, 2);
9936 mono_mb_emit_ldloc (mb, aklass);
9937 mono_mb_emit_icall (mb, mono_object_isinst);
9939 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9940 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9941 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9943 mono_mb_emit_byte (mb, CEE_RET);
9945 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9946 ret = mono_mb_create (mb, sig, 4, info);
9953 * mono_marshal_get_gsharedvt_in_wrapper:
9955 * This wrapper handles calls from normal code to gsharedvt code.
9957 * The wrapper info for the wrapper is a WrapperInfo structure.
9960 mono_marshal_get_gsharedvt_in_wrapper (void)
9962 static MonoMethod* ret = NULL;
9963 MonoMethodSignature *sig;
9964 MonoMethodBuilder *mb;
9970 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9972 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9973 sig->ret = &mono_defaults.void_class->byval_arg;
9977 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9979 mono_mb_emit_byte (mb, CEE_RET);
9981 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9982 ret = mono_mb_create (mb, sig, 4, info);
9989 * mono_marshal_get_gsharedvt_out_wrapper:
9991 * This wrapper handles calls from gsharedvt code to normal code.
9993 * The wrapper info for the wrapper is a WrapperInfo structure.
9996 mono_marshal_get_gsharedvt_out_wrapper (void)
9998 static MonoMethod* ret = NULL;
9999 MonoMethodSignature *sig;
10000 MonoMethodBuilder *mb;
10006 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10008 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10009 sig->ret = &mono_defaults.void_class->byval_arg;
10011 #ifndef DISABLE_JIT
10013 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10015 mono_mb_emit_byte (mb, CEE_RET);
10017 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10018 ret = mono_mb_create (mb, sig, 4, info);
10027 MonoMethod *method;
10030 /* LOCKING: vars accessed under the marshal lock */
10031 static ArrayElemAddr *elem_addr_cache = NULL;
10032 static int elem_addr_cache_size = 0;
10033 static int elem_addr_cache_next = 0;
10036 * mono_marshal_get_array_address:
10037 * @rank: rank of the array type
10038 * @elem_size: size in bytes of an element of an array.
10040 * Returns a MonoMethod that implements the code to get the address
10041 * of an element in a multi-dimenasional array of @rank dimensions.
10042 * The returned method takes an array as the first argument and then
10043 * @rank indexes for the @rank dimensions.
10044 * If ELEM_SIZE is 0, read the array size from the array object.
10047 mono_marshal_get_array_address (int rank, int elem_size)
10050 MonoMethodBuilder *mb;
10051 MonoMethodSignature *sig;
10054 int i, bounds, ind, realidx;
10055 int branch_pos, *branch_positions;
10059 mono_marshal_lock ();
10060 for (i = 0; i < elem_addr_cache_next; ++i) {
10061 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10062 ret = elem_addr_cache [i].method;
10066 mono_marshal_unlock ();
10070 branch_positions = g_new0 (int, rank);
10072 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10074 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10075 sig->ret = &mono_defaults.int_class->byval_arg;
10076 sig->params [0] = &mono_defaults.object_class->byval_arg;
10077 for (i = 0; i < rank; ++i) {
10078 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10081 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10082 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10085 #ifndef DISABLE_JIT
10086 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10087 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10088 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10090 /* bounds = array->bounds; */
10091 mono_mb_emit_ldarg (mb, 0);
10092 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10093 mono_mb_emit_byte (mb, CEE_LDIND_I);
10094 mono_mb_emit_stloc (mb, bounds);
10096 /* ind is the overall element index, realidx is the partial index in a single dimension */
10097 /* ind = idx0 - bounds [0].lower_bound */
10098 mono_mb_emit_ldarg (mb, 1);
10099 mono_mb_emit_ldloc (mb, bounds);
10100 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10101 mono_mb_emit_byte (mb, CEE_ADD);
10102 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10103 mono_mb_emit_byte (mb, CEE_SUB);
10104 mono_mb_emit_stloc (mb, ind);
10105 /* if (ind >= bounds [0].length) goto exeception; */
10106 mono_mb_emit_ldloc (mb, ind);
10107 mono_mb_emit_ldloc (mb, bounds);
10108 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10109 mono_mb_emit_byte (mb, CEE_ADD);
10110 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10111 /* note that we use unsigned comparison */
10112 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10114 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10115 * We could also decide to ignore the passed elem_size and get it
10116 * from the array object, to reduce the number of methods we generate:
10117 * the additional cost is 3 memory loads and a non-immediate mul.
10119 for (i = 1; i < rank; ++i) {
10120 /* realidx = idxi - bounds [i].lower_bound */
10121 mono_mb_emit_ldarg (mb, 1 + i);
10122 mono_mb_emit_ldloc (mb, bounds);
10123 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10124 mono_mb_emit_byte (mb, CEE_ADD);
10125 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10126 mono_mb_emit_byte (mb, CEE_SUB);
10127 mono_mb_emit_stloc (mb, realidx);
10128 /* if (realidx >= bounds [i].length) goto exeception; */
10129 mono_mb_emit_ldloc (mb, realidx);
10130 mono_mb_emit_ldloc (mb, bounds);
10131 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10132 mono_mb_emit_byte (mb, CEE_ADD);
10133 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10134 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10135 /* ind = ind * bounds [i].length + realidx */
10136 mono_mb_emit_ldloc (mb, ind);
10137 mono_mb_emit_ldloc (mb, bounds);
10138 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10139 mono_mb_emit_byte (mb, CEE_ADD);
10140 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10141 mono_mb_emit_byte (mb, CEE_MUL);
10142 mono_mb_emit_ldloc (mb, realidx);
10143 mono_mb_emit_byte (mb, CEE_ADD);
10144 mono_mb_emit_stloc (mb, ind);
10147 /* return array->vector + ind * element_size */
10148 mono_mb_emit_ldarg (mb, 0);
10149 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10150 mono_mb_emit_ldloc (mb, ind);
10152 mono_mb_emit_icon (mb, elem_size);
10154 /* Load arr->vtable->klass->sizes.element_class */
10155 mono_mb_emit_ldarg (mb, 0);
10156 mono_mb_emit_byte (mb, CEE_CONV_I);
10157 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10158 mono_mb_emit_byte (mb, CEE_ADD);
10159 mono_mb_emit_byte (mb, CEE_LDIND_I);
10160 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10161 mono_mb_emit_byte (mb, CEE_ADD);
10162 mono_mb_emit_byte (mb, CEE_LDIND_I);
10163 /* sizes is an union, so this reads sizes.element_size */
10164 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10165 mono_mb_emit_byte (mb, CEE_ADD);
10166 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10168 mono_mb_emit_byte (mb, CEE_MUL);
10169 mono_mb_emit_byte (mb, CEE_ADD);
10170 mono_mb_emit_byte (mb, CEE_RET);
10172 /* patch the branches to get here and throw */
10173 for (i = 1; i < rank; ++i) {
10174 mono_mb_patch_branch (mb, branch_positions [i]);
10176 mono_mb_patch_branch (mb, branch_pos);
10177 /* throw exception */
10178 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10180 g_free (branch_positions);
10181 #endif /* DISABLE_JIT */
10183 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10184 info->d.element_addr.rank = rank;
10185 info->d.element_addr.elem_size = elem_size;
10186 ret = mono_mb_create (mb, sig, 4, info);
10189 /* cache the result */
10191 mono_marshal_lock ();
10192 for (i = 0; i < elem_addr_cache_next; ++i) {
10193 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10194 /* FIXME: free ret */
10195 ret = elem_addr_cache [i].method;
10201 if (elem_addr_cache_next >= elem_addr_cache_size) {
10202 int new_size = elem_addr_cache_size + 4;
10203 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10204 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10205 g_free (elem_addr_cache);
10206 elem_addr_cache = new_array;
10207 elem_addr_cache_size = new_size;
10209 elem_addr_cache [elem_addr_cache_next].rank = rank;
10210 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10211 elem_addr_cache [elem_addr_cache_next].method = ret;
10212 elem_addr_cache_next ++;
10214 mono_marshal_unlock ();
10219 * mono_marshal_get_array_accessor_wrapper:
10221 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10224 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10226 MonoMethodSignature *sig;
10227 MonoMethodBuilder *mb;
10231 MonoGenericContext *ctx = NULL;
10232 MonoMethod *orig_method = NULL;
10233 MonoGenericContainer *container = NULL;
10237 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10238 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10239 * FIXME: Use generic methods.
10246 g_assert_not_reached ();
10248 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10249 if ((res = mono_marshal_find_in_cache (cache, method)))
10253 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10256 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10258 #ifndef DISABLE_JIT
10259 /* Call the method */
10261 mono_mb_emit_ldarg (mb, 0);
10262 for (i = 0; i < sig->param_count; i++)
10263 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10267 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10268 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10270 mono_mb_emit_managed_call (mb, method, NULL);
10272 mono_mb_emit_byte (mb, CEE_RET);
10275 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10276 info->d.array_accessor.method = method;
10280 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10281 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10283 res = mono_mb_create_and_cache_full (cache, method,
10284 mb, sig, sig->param_count + 16,
10293 mono_marshal_alloc (gulong size, MonoError *error)
10297 mono_error_init (error);
10300 res = CoTaskMemAlloc (size);
10302 res = g_try_malloc ((gulong)size);
10304 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10309 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10311 ves_icall_marshal_alloc (gulong size)
10314 void *ret = mono_marshal_alloc (size, &error);
10315 if (!mono_error_ok (&error)) {
10316 mono_error_set_pending_exception (&error);
10324 mono_marshal_free (gpointer ptr)
10327 CoTaskMemFree (ptr);
10334 mono_marshal_free_array (gpointer *ptr, int size)
10341 for (i = 0; i < size; i++)
10347 mono_marshal_string_to_utf16 (MonoString *s)
10349 return s ? mono_string_chars (s) : NULL;
10352 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10354 mono_marshal_string_to_utf16_copy (MonoString *s)
10360 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10361 if (!mono_error_ok (&error)) {
10362 mono_error_set_pending_exception (&error);
10365 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10366 res [mono_string_length (s)] = 0;
10372 * mono_marshal_set_last_error:
10374 * This function is invoked to set the last error value from a P/Invoke call
10375 * which has SetLastError set.
10378 mono_marshal_set_last_error (void)
10381 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10383 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10388 mono_marshal_set_last_error_windows (int error)
10391 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10396 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10397 gpointer dest, gint32 length)
10402 MONO_CHECK_ARG_NULL (src,);
10403 MONO_CHECK_ARG_NULL (dest,);
10405 if (src->obj.vtable->klass->rank != 1) {
10406 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10409 if (start_index < 0) {
10410 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10414 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10417 if (start_index + length > mono_array_length (src)) {
10418 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10422 element_size = mono_array_element_size (src->obj.vtable->klass);
10424 /* no references should be involved */
10425 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10427 memcpy (dest, source_addr, length * element_size);
10431 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10432 MonoArray *dest, gint32 length)
10437 MONO_CHECK_ARG_NULL (src,);
10438 MONO_CHECK_ARG_NULL (dest,);
10440 if (dest->obj.vtable->klass->rank != 1) {
10441 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10444 if (start_index < 0) {
10445 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10449 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10452 if (start_index + length > mono_array_length (dest)) {
10453 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10456 element_size = mono_array_element_size (dest->obj.vtable->klass);
10458 /* no references should be involved */
10459 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10461 memcpy (dest_addr, src, length * element_size);
10465 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10470 return mono_string_new (mono_domain_get (), ptr);
10474 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10477 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10480 return mono_string_new_len (mono_domain_get (), ptr, len);
10485 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10488 MonoString *res = NULL;
10489 MonoDomain *domain = mono_domain_get ();
10499 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10500 if (!mono_error_ok (&error)) {
10501 mono_error_set_pending_exception (&error);
10508 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10511 MonoString *res = NULL;
10512 MonoDomain *domain = mono_domain_get ();
10514 mono_error_init (&error);
10518 mono_error_set_argument_null (&error, "ptr", "");
10520 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10523 if (!mono_error_ok (&error))
10524 mono_error_set_pending_exception (&error);
10529 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10531 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10535 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10541 MONO_CHECK_ARG_NULL (rtype, 0);
10543 type = rtype->type;
10544 klass = mono_class_from_mono_type (type);
10545 if (!mono_class_init (klass)) {
10546 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10550 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10552 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10553 return sizeof (gpointer);
10554 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10556 MonoException *exc;
10558 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10559 exc = mono_get_exception_argument ("t", msg);
10561 mono_set_pending_exception (exc);
10565 return mono_class_native_size (klass, NULL);
10569 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10572 MonoMethod *method;
10575 MONO_CHECK_ARG_NULL (obj,);
10576 MONO_CHECK_ARG_NULL (dst,);
10578 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10582 pa [2] = &delete_old;
10584 mono_runtime_invoke_checked (method, NULL, pa, &error);
10585 if (!mono_error_ok (&error))
10586 mono_error_set_pending_exception (&error);
10590 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10592 MonoMethod *method;
10595 mono_error_init (error);
10597 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10602 mono_runtime_invoke_checked (method, NULL, pa, error);
10606 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10611 MONO_CHECK_ARG_NULL (src,);
10612 MONO_CHECK_ARG_NULL (dst,);
10614 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10616 if (t->type == MONO_TYPE_VALUETYPE) {
10617 MonoException *exc;
10620 tmp = g_strdup_printf ("Destination is a boxed value type.");
10621 exc = mono_get_exception_argument ("dst", tmp);
10624 mono_set_pending_exception (exc);
10628 ptr_to_structure (src, dst, &error);
10629 if (!mono_error_ok (&error))
10630 mono_error_set_pending_exception (&error);
10634 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10638 MonoDomain *domain = mono_domain_get ();
10643 MONO_CHECK_ARG_NULL (type, NULL);
10645 klass = mono_class_from_mono_type (type->type);
10646 if (!mono_class_init (klass)) {
10647 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10651 res = mono_object_new_checked (domain, klass, &error);
10652 if (!mono_error_ok (&error)) {
10653 mono_error_set_pending_exception (&error);
10657 ptr_to_structure (src, res, &error);
10658 if (!mono_error_ok (&error)) {
10659 mono_error_set_pending_exception (&error);
10667 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10669 MonoMarshalType *info;
10672 int match_index = -1;
10674 MONO_CHECK_ARG_NULL (type, 0);
10675 MONO_CHECK_ARG_NULL (field_name, 0);
10677 fname = mono_string_to_utf8 (field_name);
10678 klass = mono_class_from_mono_type (type->type);
10679 if (!mono_class_init (klass)) {
10680 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10684 while (klass && match_index == -1) {
10685 MonoClassField* field;
10687 gpointer iter = NULL;
10688 while ((field = mono_class_get_fields (klass, &iter))) {
10689 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10691 if (!strcmp (fname, mono_field_get_name (field))) {
10698 if (match_index == -1)
10699 klass = klass->parent;
10704 if(match_index == -1) {
10705 MonoException* exc;
10708 /* Get back original class instance */
10709 klass = mono_class_from_mono_type (type->type);
10711 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10712 exc = mono_get_exception_argument ("fieldName", tmp);
10715 mono_set_pending_exception ((MonoException*)exc);
10719 info = mono_marshal_load_type_info (klass);
10720 return info->fields [match_index].offset;
10724 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10729 tres = mono_string_to_utf8 (string);
10733 len = strlen (tres) + 1;
10734 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10735 memcpy (ret, tres, len);
10740 return mono_string_to_utf8 (string);
10745 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10747 if (string == NULL)
10750 #ifdef TARGET_WIN32
10751 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10752 ((mono_string_length (string) + 1) * 2);
10754 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10756 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10757 res [mono_string_length (string)] = 0;
10763 mono_struct_delete_old (MonoClass *klass, char *ptr)
10765 MonoMarshalType *info;
10768 info = mono_marshal_load_type_info (klass);
10770 for (i = 0; i < info->num_fields; i++) {
10771 MonoMarshalConv conv;
10772 MonoType *ftype = info->fields [i].field->type;
10775 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10778 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10779 klass->unicode, &conv);
10781 cpos = ptr + info->fields [i].offset;
10784 case MONO_MARSHAL_CONV_NONE:
10785 if (MONO_TYPE_ISSTRUCT (ftype)) {
10786 mono_struct_delete_old (ftype->data.klass, cpos);
10790 case MONO_MARSHAL_CONV_STR_LPWSTR:
10791 /* We assume this field points inside a MonoString */
10793 case MONO_MARSHAL_CONV_STR_LPTSTR:
10794 #ifdef TARGET_WIN32
10795 /* We assume this field points inside a MonoString
10799 case MONO_MARSHAL_CONV_STR_LPSTR:
10800 case MONO_MARSHAL_CONV_STR_BSTR:
10801 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10802 case MONO_MARSHAL_CONV_STR_TBSTR:
10803 mono_marshal_free (*(gpointer *)cpos);
10813 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10817 MONO_CHECK_ARG_NULL (src,);
10818 MONO_CHECK_ARG_NULL (type,);
10820 klass = mono_class_from_mono_type (type->type);
10821 if (!mono_class_init (klass)) {
10822 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10826 mono_struct_delete_old (klass, (char *)src);
10830 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10833 size_t s = (size_t)size;
10836 /* This returns a valid pointer for size 0 on MS.NET */
10840 res = GlobalAlloc (GMEM_FIXED, s);
10842 res = g_try_malloc (s);
10845 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10853 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10856 size_t s = (size_t)size;
10859 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10864 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10866 res = g_try_realloc (ptr, s);
10869 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10877 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10887 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10892 res = CoTaskMemAlloc (size);
10894 if ((gulong)size == 0)
10895 /* This returns a valid pointer for size 0 on MS.NET */
10898 res = g_try_malloc ((gulong)size);
10901 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10908 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10911 CoTaskMemFree (ptr);
10918 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10923 res = CoTaskMemRealloc (ptr, size);
10925 res = g_try_realloc (ptr, (gulong)size);
10928 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10935 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10937 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10941 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10943 MonoClass *klass = mono_type_get_class (type->type);
10944 if (!mono_class_init (klass)) {
10945 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10949 return mono_ftnptr_to_delegate (klass, ftn);
10953 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10955 return mono_delegate_to_ftnptr (delegate);
10959 * mono_marshal_is_loading_type_info:
10961 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10965 mono_marshal_is_loading_type_info (MonoClass *klass)
10967 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10969 return g_slist_find (loads_list, klass) != NULL;
10973 * mono_marshal_load_type_info:
10975 * Initialize klass->marshal_info using information from metadata. This function can
10976 * recursively call itself, and the caller is responsible to avoid that by calling
10977 * mono_marshal_is_loading_type_info () beforehand.
10979 * LOCKING: Acquires the loader lock.
10982 mono_marshal_load_type_info (MonoClass* klass)
10985 guint32 native_size = 0, min_align = 1, packing;
10986 MonoMarshalType *info;
10987 MonoClassField* field;
10990 GSList *loads_list;
10992 g_assert (klass != NULL);
10994 if (klass->marshal_info)
10995 return klass->marshal_info;
10997 if (!klass->inited)
10998 mono_class_init (klass);
11000 if (klass->marshal_info)
11001 return klass->marshal_info;
11004 * This function can recursively call itself, so we keep the list of classes which are
11005 * under initialization in a TLS list.
11007 g_assert (!mono_marshal_is_loading_type_info (klass));
11008 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11009 loads_list = g_slist_prepend (loads_list, klass);
11010 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11013 while ((field = mono_class_get_fields (klass, &iter))) {
11014 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11016 if (mono_field_is_deleted (field))
11021 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11023 /* The mempool is protected by the loader lock */
11024 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11025 info->num_fields = count;
11027 /* Try to find a size for this type in metadata */
11028 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11030 if (klass->parent) {
11031 int parent_size = mono_class_native_size (klass->parent, NULL);
11033 /* Add parent size to real size */
11034 native_size += parent_size;
11035 info->native_size = parent_size;
11038 packing = klass->packing_size ? klass->packing_size : 8;
11041 while ((field = mono_class_get_fields (klass, &iter))) {
11045 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11048 if (mono_field_is_deleted (field))
11050 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11051 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11052 NULL, NULL, &info->fields [j].mspec);
11054 info->fields [j].field = field;
11056 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11057 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11058 /* This field is a hack inserted by MCS to empty structures */
11063 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11064 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11065 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11066 &align, TRUE, klass->unicode);
11067 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11068 min_align = MAX (align, min_align);
11069 info->fields [j].offset = info->native_size;
11070 info->fields [j].offset += align - 1;
11071 info->fields [j].offset &= ~(align - 1);
11072 info->native_size = info->fields [j].offset + size;
11074 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11075 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11076 &align, TRUE, klass->unicode);
11077 min_align = MAX (align, min_align);
11078 info->fields [j].offset = field->offset - sizeof (MonoObject);
11079 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11085 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11086 info->native_size = MAX (native_size, info->native_size);
11088 * If the provided Size is equal or larger than the calculated size, and there
11089 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11091 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11092 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11095 min_align = MIN (min_align, packing);
11099 if (info->native_size & (min_align - 1)) {
11100 info->native_size += min_align - 1;
11101 info->native_size &= ~(min_align - 1);
11104 info->min_align = min_align;
11106 /* Update the class's blittable info, if the layouts don't match */
11107 if (info->native_size != mono_class_value_size (klass, NULL))
11108 klass->blittable = FALSE;
11110 /* If this is an array type, ensure that we have element info */
11111 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11112 mono_marshal_load_type_info (klass->element_class);
11115 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11116 loads_list = g_slist_remove (loads_list, klass);
11117 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11119 mono_marshal_lock ();
11120 if (!klass->marshal_info) {
11121 /*We do double-checking locking on marshal_info */
11122 mono_memory_barrier ();
11123 klass->marshal_info = info;
11125 mono_marshal_unlock ();
11127 return klass->marshal_info;
11131 * mono_class_native_size:
11134 * Returns: the native size of an object instance (when marshaled
11135 * to unmanaged code)
11138 mono_class_native_size (MonoClass *klass, guint32 *align)
11140 if (!klass->marshal_info) {
11141 if (mono_marshal_is_loading_type_info (klass)) {
11146 mono_marshal_load_type_info (klass);
11151 *align = klass->marshal_info->min_align;
11153 return klass->marshal_info->native_size;
11157 * mono_type_native_stack_size:
11158 * @t: the type to return the size it uses on the stack
11160 * Returns: the number of bytes required to hold an instance of this
11161 * type on the native stack
11164 mono_type_native_stack_size (MonoType *t, guint32 *align)
11168 g_assert (t != NULL);
11174 *align = sizeof (gpointer);
11175 return sizeof (gpointer);
11179 case MONO_TYPE_BOOLEAN:
11180 case MONO_TYPE_CHAR:
11191 case MONO_TYPE_STRING:
11192 case MONO_TYPE_OBJECT:
11193 case MONO_TYPE_CLASS:
11194 case MONO_TYPE_SZARRAY:
11195 case MONO_TYPE_PTR:
11196 case MONO_TYPE_FNPTR:
11197 case MONO_TYPE_ARRAY:
11198 *align = sizeof (gpointer);
11199 return sizeof (gpointer);
11204 *align = MONO_ABI_ALIGNOF (double);
11208 *align = MONO_ABI_ALIGNOF (gint64);
11210 case MONO_TYPE_GENERICINST:
11211 if (!mono_type_generic_inst_is_valuetype (t)) {
11212 *align = sizeof (gpointer);
11213 return sizeof (gpointer);
11216 case MONO_TYPE_TYPEDBYREF:
11217 case MONO_TYPE_VALUETYPE: {
11219 MonoClass *klass = mono_class_from_mono_type (t);
11221 if (klass->enumtype)
11222 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11224 size = mono_class_native_size (klass, align);
11225 *align = *align + 3;
11235 g_error ("type 0x%02x unknown", t->type);
11241 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11242 gboolean as_field, gboolean unicode)
11244 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11247 switch (native_type) {
11248 case MONO_NATIVE_BOOLEAN:
11251 case MONO_NATIVE_I1:
11252 case MONO_NATIVE_U1:
11255 case MONO_NATIVE_I2:
11256 case MONO_NATIVE_U2:
11257 case MONO_NATIVE_VARIANTBOOL:
11260 case MONO_NATIVE_I4:
11261 case MONO_NATIVE_U4:
11262 case MONO_NATIVE_ERROR:
11265 case MONO_NATIVE_I8:
11266 case MONO_NATIVE_U8:
11267 *align = MONO_ABI_ALIGNOF (gint64);
11269 case MONO_NATIVE_R4:
11272 case MONO_NATIVE_R8:
11273 *align = MONO_ABI_ALIGNOF (double);
11275 case MONO_NATIVE_INT:
11276 case MONO_NATIVE_UINT:
11277 case MONO_NATIVE_LPSTR:
11278 case MONO_NATIVE_LPWSTR:
11279 case MONO_NATIVE_LPTSTR:
11280 case MONO_NATIVE_BSTR:
11281 case MONO_NATIVE_ANSIBSTR:
11282 case MONO_NATIVE_TBSTR:
11283 case MONO_NATIVE_LPARRAY:
11284 case MONO_NATIVE_SAFEARRAY:
11285 case MONO_NATIVE_IUNKNOWN:
11286 case MONO_NATIVE_IDISPATCH:
11287 case MONO_NATIVE_INTERFACE:
11288 case MONO_NATIVE_ASANY:
11289 case MONO_NATIVE_FUNC:
11290 case MONO_NATIVE_LPSTRUCT:
11291 *align = MONO_ABI_ALIGNOF (gpointer);
11292 return sizeof (gpointer);
11293 case MONO_NATIVE_STRUCT:
11294 klass = mono_class_from_mono_type (type);
11295 if (klass == mono_defaults.object_class &&
11296 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11300 return mono_class_native_size (klass, align);
11301 case MONO_NATIVE_BYVALTSTR: {
11302 int esize = unicode ? 2: 1;
11305 return mspec->data.array_data.num_elem * esize;
11307 case MONO_NATIVE_BYVALARRAY: {
11308 // FIXME: Have to consider ArraySubType
11310 klass = mono_class_from_mono_type (type);
11311 if (klass->element_class == mono_defaults.char_class) {
11312 esize = unicode ? 2 : 1;
11315 esize = mono_class_native_size (klass->element_class, align);
11318 return mspec->data.array_data.num_elem * esize;
11320 case MONO_NATIVE_CUSTOM:
11321 *align = sizeof (gpointer);
11322 return sizeof (gpointer);
11324 case MONO_NATIVE_CURRENCY:
11325 case MONO_NATIVE_VBBYREFSTR:
11327 g_error ("native type %02x not implemented", native_type);
11330 g_assert_not_reached ();
11334 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11336 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11345 t = &o->vtable->klass->byval_arg;
11349 case MONO_TYPE_PTR:
11352 case MONO_TYPE_BOOLEAN:
11355 case MONO_TYPE_CHAR:
11360 return mono_object_unbox (o);
11362 case MONO_TYPE_STRING:
11363 switch (string_encoding) {
11364 case MONO_NATIVE_LPWSTR:
11365 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11367 case MONO_NATIVE_LPSTR:
11368 return mono_string_to_lpstr ((MonoString*)o);
11371 g_warning ("marshaling conversion %d not implemented", string_encoding);
11372 g_assert_not_reached ();
11375 case MONO_TYPE_CLASS:
11376 case MONO_TYPE_VALUETYPE: {
11377 MonoMethod *method;
11380 MonoBoolean delete_old = FALSE;
11382 klass = t->data.klass;
11384 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11387 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11388 klass->blittable || klass->enumtype))
11389 return mono_object_unbox (o);
11391 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11392 if (!mono_error_ok (&error)) {
11393 mono_error_set_pending_exception (&error);
11397 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11398 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11402 pa [2] = &delete_old;
11404 mono_runtime_invoke_checked (method, NULL, pa, &error);
11405 if (!mono_error_ok (&error)) {
11406 mono_error_set_pending_exception (&error);
11416 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11420 /* This is a JIT icall, it sets the pending exception */
11422 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11431 t = &o->vtable->klass->byval_arg;
11433 case MONO_TYPE_STRING:
11434 switch (string_encoding) {
11435 case MONO_NATIVE_LPWSTR:
11436 case MONO_NATIVE_LPSTR:
11437 mono_marshal_free (ptr);
11440 g_warning ("marshaling conversion %d not implemented", string_encoding);
11441 g_assert_not_reached ();
11444 case MONO_TYPE_CLASS:
11445 case MONO_TYPE_VALUETYPE: {
11446 klass = t->data.klass;
11448 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11449 klass->blittable || klass->enumtype))
11452 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11453 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11459 mono_runtime_invoke_checked (method, NULL, pa, &error);
11460 if (!mono_error_ok (&error)) {
11461 mono_error_set_pending_exception (&error);
11466 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11467 mono_struct_delete_old (klass, (char *)ptr);
11470 mono_marshal_free (ptr);
11479 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11481 MonoMethodSignature *sig, *csig;
11482 MonoMethodBuilder *mb;
11487 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11488 mb->method->slot = -1;
11490 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11491 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11493 sig = mono_method_signature (method);
11494 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11495 csig->generic_param_count = 0;
11497 #ifndef DISABLE_JIT
11498 mono_mb_emit_ldarg (mb, 0);
11499 for (i = 0; i < csig->param_count; i++)
11500 mono_mb_emit_ldarg (mb, i + 1);
11501 mono_mb_emit_managed_call (mb, method, NULL);
11502 mono_mb_emit_byte (mb, CEE_RET);
11504 /* We can corlib internal methods */
11505 mb->skip_visibility = TRUE;
11507 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11508 info->d.generic_array_helper.method = method;
11509 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11517 * The mono_win32_compat_* functions are implementations of inline
11518 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11519 * although not exported by kernel32.
11521 * We map the appropiate kernel32 entries to these functions using
11522 * dllmaps declared in the global etc/mono/config.
11526 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11528 if (!dest || !source)
11531 memcpy (dest, source, length);
11535 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11537 memset (dest, fill, length);
11541 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11543 if (!dest || !source)
11546 memmove (dest, source, length);
11550 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11552 memset (dest, 0, length);
11556 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11561 for (i = 0; i < len; ++i)
11565 g_assert (i < len);
11568 while (byte && !(byte & 1))
11570 g_assert (byte == 1);
11573 *bitmask = buf [i];
11577 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11579 MonoMethodBuilder *mb;
11580 MonoMethodSignature *sig, *csig;
11581 MonoExceptionClause *clause;
11586 int i, param_count, sig_size, pos_leave;
11587 int coop_gc_var, coop_gc_dummy_local;
11591 klass = method->klass;
11592 image = method->klass->image;
11594 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11596 if ((res = mono_marshal_find_in_cache (cache, method)))
11599 sig = mono_method_signature (method);
11600 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11602 /* add "this" and exception param */
11603 param_count = sig->param_count + sig->hasthis + 1;
11605 /* dup & extend signature */
11606 csig = mono_metadata_signature_alloc (image, param_count);
11607 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11608 memcpy (csig, sig, sig_size);
11609 csig->param_count = param_count;
11612 csig->call_convention = MONO_CALL_DEFAULT;
11614 if (sig->hasthis) {
11616 csig->params [0] = &klass->byval_arg;
11617 /* move params up by one */
11618 for (i = 0; i < sig->param_count; i++)
11619 csig->params [i + 1] = sig->params [i];
11622 /* setup exception param as byref+[out] */
11623 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11624 &mono_defaults.exception_class->byval_arg);
11625 csig->params [param_count - 1]->byref = 1;
11626 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11628 /* convert struct return to object */
11629 if (MONO_TYPE_ISSTRUCT (sig->ret))
11630 csig->ret = &mono_defaults.object_class->byval_arg;
11632 #ifndef DISABLE_JIT
11633 /* local 0 (temp for exception object) */
11634 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11636 /* local 1 (temp for result) */
11637 if (!MONO_TYPE_IS_VOID (sig->ret))
11638 mono_mb_add_local (mb, sig->ret);
11640 if (mono_threads_is_coop_enabled ()) {
11641 /* local 4, the local to be used when calling the reset_blocking funcs */
11642 /* tons of code hardcode 3 to be the return var */
11643 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11644 /* local 5, the local used to get a stack address for suspend funcs */
11645 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11648 /* clear exception arg */
11649 mono_mb_emit_ldarg (mb, param_count - 1);
11650 mono_mb_emit_byte (mb, CEE_LDNULL);
11651 mono_mb_emit_byte (mb, CEE_STIND_REF);
11653 if (mono_threads_is_coop_enabled ()) {
11654 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11655 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11656 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11657 mono_mb_emit_stloc (mb, coop_gc_var);
11661 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11662 clause->try_offset = mono_mb_get_label (mb);
11664 /* push method's args */
11665 for (i = 0; i < param_count - 1; i++) {
11669 mono_mb_emit_ldarg (mb, i);
11671 /* get the byval type of the param */
11672 klass = mono_class_from_mono_type (csig->params [i]);
11673 type = &klass->byval_arg;
11675 /* unbox struct args */
11676 if (MONO_TYPE_ISSTRUCT (type)) {
11677 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11679 /* byref args & and the "this" arg must remain a ptr.
11680 Otherwise make a copy of the value type */
11681 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11682 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11684 csig->params [i] = &mono_defaults.object_class->byval_arg;
11689 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11690 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11692 mono_mb_emit_op (mb, CEE_CALL, method);
11694 /* save result at local 1 */
11695 if (!MONO_TYPE_IS_VOID (sig->ret))
11696 mono_mb_emit_stloc (mb, 1);
11698 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11701 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11702 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11703 clause->data.catch_class = mono_defaults.object_class;
11705 clause->handler_offset = mono_mb_get_label (mb);
11707 /* store exception at local 0 */
11708 mono_mb_emit_stloc (mb, 0);
11709 mono_mb_emit_ldarg (mb, param_count - 1);
11710 mono_mb_emit_ldloc (mb, 0);
11711 mono_mb_emit_byte (mb, CEE_STIND_REF);
11712 mono_mb_emit_branch (mb, CEE_LEAVE);
11714 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11716 mono_mb_set_clauses (mb, 1, clause);
11718 mono_mb_patch_branch (mb, pos_leave);
11721 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11722 mono_mb_emit_ldloc (mb, 1);
11724 /* box the return value */
11725 if (MONO_TYPE_ISSTRUCT (sig->ret))
11726 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11729 if (mono_threads_is_coop_enabled ()) {
11730 /* XXX merge reset_blocking_end with detach */
11731 mono_mb_emit_ldloc (mb, coop_gc_var);
11732 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11733 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11736 mono_mb_emit_byte (mb, CEE_RET);
11739 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11746 * mono_marshal_free_dynamic_wrappers:
11748 * Free wrappers of the dynamic method METHOD.
11751 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11753 MonoImage *image = method->klass->image;
11755 g_assert (method_is_dynamic (method));
11757 /* This could be called during shutdown */
11758 if (marshal_mutex_initialized)
11759 mono_marshal_lock ();
11761 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11762 * they could be shared with other methods ?
11764 if (image->wrapper_caches.runtime_invoke_direct_cache)
11765 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11766 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11767 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11768 // FIXME: Need to clear the caches in other images as well
11769 if (image->delegate_bound_static_invoke_cache)
11770 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11772 if (marshal_mutex_initialized)
11773 mono_marshal_unlock ();