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 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2213 mono_error_set_pending_exception (&error);
2220 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2222 int i, params_var, tmp_var;
2224 /* allocate local (pointer) *params[] */
2225 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2226 /* allocate local (pointer) tmp */
2227 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2229 /* alloate space on stack to store an array of pointers to the arguments */
2230 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2231 mono_mb_emit_byte (mb, CEE_PREFIX1);
2232 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2233 mono_mb_emit_stloc (mb, params_var);
2236 mono_mb_emit_ldloc (mb, params_var);
2237 mono_mb_emit_stloc (mb, tmp_var);
2239 if (save_this && sig->hasthis) {
2240 mono_mb_emit_ldloc (mb, tmp_var);
2241 mono_mb_emit_ldarg_addr (mb, 0);
2242 mono_mb_emit_byte (mb, CEE_STIND_I);
2243 /* tmp = tmp + sizeof (gpointer) */
2244 if (sig->param_count)
2245 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2249 for (i = 0; i < sig->param_count; i++) {
2250 mono_mb_emit_ldloc (mb, tmp_var);
2251 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2252 mono_mb_emit_byte (mb, CEE_STIND_I);
2253 /* tmp = tmp + sizeof (gpointer) */
2254 if (i < (sig->param_count - 1))
2255 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2261 #endif /* DISABLE_JIT */
2264 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2268 GString *res = g_string_new ("");
2271 g_string_append (res, prefix);
2272 g_string_append_c (res, '_');
2275 mono_type_get_desc (res, sig->ret, FALSE);
2278 g_string_append (res, "__this__");
2280 for (i = 0; i < sig->param_count; ++i) {
2281 g_string_append_c (res, '_');
2282 mono_type_get_desc (res, sig->params [i], FALSE);
2285 g_string_free (res, FALSE);
2290 * mono_marshal_get_string_encoding:
2292 * Return the string encoding which should be used for a given parameter.
2294 static MonoMarshalNative
2295 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2297 /* First try the parameter marshal info */
2299 if (spec->native == MONO_NATIVE_LPARRAY) {
2300 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2301 return spec->data.array_data.elem_type;
2304 return spec->native;
2308 return MONO_NATIVE_LPSTR;
2310 /* Then try the method level marshal info */
2311 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2312 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2313 return MONO_NATIVE_LPSTR;
2314 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2315 return MONO_NATIVE_LPWSTR;
2316 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2318 return MONO_NATIVE_LPWSTR;
2320 return MONO_NATIVE_LPSTR;
2323 return MONO_NATIVE_LPSTR;
2327 static MonoMarshalConv
2328 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2330 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2333 case MONO_NATIVE_LPWSTR:
2334 return MONO_MARSHAL_CONV_STR_LPWSTR;
2335 case MONO_NATIVE_LPSTR:
2336 case MONO_NATIVE_VBBYREFSTR:
2337 return MONO_MARSHAL_CONV_STR_LPSTR;
2338 case MONO_NATIVE_LPTSTR:
2339 return MONO_MARSHAL_CONV_STR_LPTSTR;
2340 case MONO_NATIVE_BSTR:
2341 return MONO_MARSHAL_CONV_STR_BSTR;
2343 return (MonoMarshalConv)-1;
2347 static MonoMarshalConv
2348 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2350 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2353 case MONO_NATIVE_LPWSTR:
2354 return MONO_MARSHAL_CONV_SB_LPWSTR;
2356 case MONO_NATIVE_LPSTR:
2357 return MONO_MARSHAL_CONV_SB_LPSTR;
2359 case MONO_NATIVE_LPTSTR:
2360 return MONO_MARSHAL_CONV_SB_LPTSTR;
2363 return (MonoMarshalConv)-1;
2367 static MonoMarshalConv
2368 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2370 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2375 case MONO_NATIVE_LPWSTR:
2377 return MONO_MARSHAL_CONV_LPWSTR_STR;
2378 case MONO_NATIVE_LPSTR:
2379 case MONO_NATIVE_VBBYREFSTR:
2380 return MONO_MARSHAL_CONV_LPSTR_STR;
2381 case MONO_NATIVE_LPTSTR:
2382 return MONO_MARSHAL_CONV_LPTSTR_STR;
2383 case MONO_NATIVE_BSTR:
2384 return MONO_MARSHAL_CONV_BSTR_STR;
2386 return (MonoMarshalConv)-1;
2390 static MonoMarshalConv
2391 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2393 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2398 case MONO_NATIVE_LPWSTR:
2400 * mono_string_builder_to_utf16 does not allocate a
2401 * new buffer, so no need to free it.
2404 return MONO_MARSHAL_CONV_LPWSTR_SB;
2405 case MONO_NATIVE_LPSTR:
2406 return MONO_MARSHAL_CONV_LPSTR_SB;
2408 case MONO_NATIVE_LPTSTR:
2409 return MONO_MARSHAL_CONV_LPTSTR_SB;
2412 return (MonoMarshalConv)-1;
2417 * Return whenever a field of a native structure or an array member needs to
2421 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2423 MonoMarshalNative encoding;
2426 case MONO_TYPE_VALUETYPE:
2427 /* FIXME: Optimize this */
2429 case MONO_TYPE_OBJECT:
2430 case MONO_TYPE_CLASS:
2431 if (t->data.klass == mono_defaults.stringbuilder_class) {
2433 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2437 case MONO_TYPE_STRING:
2438 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2439 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2446 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2449 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2452 mono_marshal_lock ();
2455 g_hash_table_new (hash_func, equal_func);
2456 mono_memory_barrier ();
2459 mono_marshal_unlock ();
2465 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2467 return get_cache (var, hash_func, equal_func);
2471 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2475 mono_marshal_lock ();
2476 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2477 mono_marshal_unlock ();
2484 * Create a MonoMethod from MB, set INFO as wrapper info.
2487 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2488 int max_stack, WrapperInfo *info)
2492 res = mono_mb_create_method (mb, sig, max_stack);
2494 mono_marshal_set_wrapper_info (res, info);
2498 /* Create the method from the builder and place it in the cache */
2500 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2501 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2502 int max_stack, WrapperInfo *info, gboolean *out_found)
2509 mono_marshal_lock ();
2510 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2511 mono_marshal_unlock ();
2514 newm = mono_mb_create_method (mb, sig, max_stack);
2515 mono_marshal_lock ();
2516 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2519 g_hash_table_insert (cache, key, res);
2520 mono_marshal_set_wrapper_info (res, info);
2521 mono_marshal_unlock ();
2525 mono_marshal_unlock ();
2526 mono_free_method (newm);
2534 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2535 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2538 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2542 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2545 int wrapper_type = wrapper->wrapper_type;
2548 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2551 info = mono_marshal_get_wrapper_info (wrapper);
2553 switch (wrapper_type) {
2554 case MONO_WRAPPER_REMOTING_INVOKE:
2555 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2556 case MONO_WRAPPER_XDOMAIN_INVOKE:
2557 m = info->d.remoting.method;
2558 if (wrapper->is_inflated) {
2562 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2563 * contains an uninflated method.
2565 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2566 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2570 case MONO_WRAPPER_SYNCHRONIZED:
2571 m = info->d.synchronized.method;
2572 if (wrapper->is_inflated) {
2575 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2576 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2580 case MONO_WRAPPER_UNBOX:
2581 return info->d.unbox.method;
2582 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2583 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2584 return info->d.managed_to_native.method;
2587 case MONO_WRAPPER_RUNTIME_INVOKE:
2588 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2589 return info->d.runtime_invoke.method;
2598 * mono_marshal_get_wrapper_info:
2600 * Retrieve the WrapperInfo structure associated with WRAPPER.
2603 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2605 g_assert (wrapper->wrapper_type);
2607 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2611 * mono_marshal_set_wrapper_info:
2613 * Set the WrapperInfo structure associated with the wrapper
2614 * method METHOD to INFO.
2617 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2621 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2624 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2629 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2633 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2634 info->subtype = subtype;
2639 * get_wrapper_target_class:
2641 * Return the class where a wrapper method should be placed.
2644 get_wrapper_target_class (MonoImage *image)
2651 * - can't put all wrappers into an mscorlib class, because they reference
2652 * metadata (signature) so they should be put into the same image as the
2653 * method they wrap, so they are unloaded together.
2654 * - putting them into a class with a type initalizer could cause the
2655 * initializer to be executed which can be a problem if the wrappers are
2657 * - putting them into an inflated class can cause problems if the the
2658 * class is deleted because it references an image which is unloaded.
2659 * To avoid these problems, we put the wrappers into the <Module> class of
2662 if (image_is_dynamic (image)) {
2663 klass = ((MonoDynamicImage*)image)->wrappers_type;
2665 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2666 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2674 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2675 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2679 * check_generic_wrapper_cache:
2681 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2682 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2683 * generic method definition.
2686 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2689 MonoMethod *inst, *def;
2690 MonoGenericContext *ctx;
2692 g_assert (orig_method->is_inflated);
2693 ctx = mono_method_get_context (orig_method);
2696 * Look for the instance
2698 res = mono_marshal_find_in_cache (cache, key);
2703 * Look for the definition
2705 def = mono_marshal_find_in_cache (cache, def_key);
2708 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2709 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2711 mono_memory_barrier ();
2712 mono_marshal_lock ();
2713 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2715 g_hash_table_insert (cache, key, inst);
2718 mono_marshal_unlock ();
2725 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2728 MonoMethod *inst, *res;
2731 * We use the same cache for the generic definition and the instances.
2733 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2734 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2735 mono_memory_barrier ();
2736 mono_marshal_lock ();
2737 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2739 g_hash_table_insert (cache, key, inst);
2742 mono_marshal_unlock ();
2747 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2751 MonoMethod *inst, *def;
2754 * Look for the instance
2756 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2761 * Look for the definition
2763 def = mono_marshal_find_in_cache (cache, def_method->klass);
2765 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2766 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2769 mono_memory_barrier ();
2770 mono_marshal_lock ();
2771 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2773 g_hash_table_insert (cache, orig_method->klass, inst);
2776 mono_marshal_unlock ();
2783 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2786 MonoMethod *inst, *res;
2789 * We use the same cache for the generic definition and the instances.
2791 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2792 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2794 mono_memory_barrier ();
2795 mono_marshal_lock ();
2796 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2798 g_hash_table_insert (cache, orig_method->klass, inst);
2801 mono_marshal_unlock ();
2806 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2808 MonoMethodSignature *sig;
2809 MonoMethodBuilder *mb;
2814 MonoGenericContext *ctx = NULL;
2815 MonoMethod *orig_method = NULL;
2817 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2818 !strcmp (method->name, "BeginInvoke"));
2821 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2823 if (method->is_inflated) {
2824 orig_method = method;
2825 ctx = &((MonoMethodInflated*)method)->context;
2826 method = ((MonoMethodInflated*)method)->declaring;
2829 sig = mono_signature_no_pinvoke (method);
2835 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2836 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2840 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2841 (GHashFunc)mono_signature_hash,
2842 (GCompareFunc)mono_metadata_signature_equal);
2843 if ((res = mono_marshal_find_in_cache (cache, sig)))
2847 g_assert (sig->hasthis);
2849 name = mono_signature_to_name (sig, "begin_invoke");
2851 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2853 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2857 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2859 mono_mb_emit_ldarg (mb, 0);
2860 mono_mb_emit_ldloc (mb, params_var);
2861 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2862 mono_mb_emit_byte (mb, CEE_RET);
2867 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2868 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2870 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2877 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2879 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2882 MonoDomain *domain = mono_domain_get ();
2883 MonoAsyncResult *ares;
2884 MonoMethod *method = NULL;
2885 MonoMethodSignature *sig;
2886 MonoMethodMessage *msg;
2887 MonoObject *res, *exc;
2888 MonoArray *out_args;
2891 g_assert (delegate);
2893 if (!delegate->method_info) {
2894 g_assert (delegate->method);
2895 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2896 if (!mono_error_ok (&error)) {
2897 mono_error_set_pending_exception (&error);
2900 MONO_OBJECT_SETREF (delegate, method_info, rm);
2903 if (!delegate->method_info || !delegate->method_info->method)
2904 g_assert_not_reached ();
2906 klass = delegate->object.vtable->klass;
2908 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2909 g_assert (method != NULL);
2911 sig = mono_signature_no_pinvoke (method);
2913 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2915 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2917 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."));
2921 if (ares->async_delegate != (MonoObject*)delegate) {
2922 mono_set_pending_exception (mono_get_exception_invalid_operation (
2923 "The IAsyncResult object provided does not match this delegate."));
2927 #ifndef DISABLE_REMOTING
2928 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2929 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2930 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2931 if (!mono_error_ok (&error)) {
2932 mono_error_set_pending_exception (&error);
2935 mono_message_init (domain, msg, delegate->method_info, NULL);
2936 msg->call_type = CallType_EndInvoke;
2937 MONO_OBJECT_SETREF (msg, async_result, ares);
2938 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2939 if (!mono_error_ok (&error)) {
2940 mono_error_set_pending_exception (&error);
2946 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2950 if (((MonoException*)exc)->stack_trace) {
2951 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2953 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2955 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2958 mono_set_pending_exception ((MonoException*)exc);
2961 mono_method_return_message_restore (method, params, out_args);
2968 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2970 MonoType *t = mono_type_get_underlying_type (return_type);
2972 if (return_type->byref)
2973 return_type = &mono_defaults.int_class->byval_arg;
2976 case MONO_TYPE_VOID:
2977 g_assert_not_reached ();
2980 case MONO_TYPE_STRING:
2981 case MONO_TYPE_CLASS:
2982 case MONO_TYPE_OBJECT:
2983 case MONO_TYPE_ARRAY:
2984 case MONO_TYPE_SZARRAY:
2988 case MONO_TYPE_BOOLEAN:
2991 case MONO_TYPE_CHAR:
3001 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3002 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3004 case MONO_TYPE_GENERICINST:
3005 if (!mono_type_generic_inst_is_valuetype (t))
3008 case MONO_TYPE_VALUETYPE: {
3009 MonoClass *klass = mono_class_from_mono_type (return_type);
3010 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3011 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3015 case MONO_TYPE_MVAR: {
3016 MonoClass *klass = mono_class_from_mono_type (return_type);
3017 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3021 g_warning ("type 0x%x not handled", return_type->type);
3022 g_assert_not_reached ();
3025 mono_mb_emit_byte (mb, CEE_RET);
3028 #endif /* DISABLE_JIT */
3031 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3033 MonoMethodSignature *sig;
3034 MonoMethodBuilder *mb;
3039 MonoGenericContext *ctx = NULL;
3040 MonoMethod *orig_method = NULL;
3042 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3043 !strcmp (method->name, "EndInvoke"));
3046 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3048 if (method->is_inflated) {
3049 orig_method = method;
3050 ctx = &((MonoMethodInflated*)method)->context;
3051 method = ((MonoMethodInflated*)method)->declaring;
3054 sig = mono_signature_no_pinvoke (method);
3060 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3061 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3065 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3066 (GHashFunc)mono_signature_hash,
3067 (GCompareFunc)mono_metadata_signature_equal);
3068 if ((res = mono_marshal_find_in_cache (cache, sig)))
3072 g_assert (sig->hasthis);
3074 name = mono_signature_to_name (sig, "end_invoke");
3076 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3078 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3082 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3084 mono_mb_emit_ldarg (mb, 0);
3085 mono_mb_emit_ldloc (mb, params_var);
3086 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3088 if (sig->ret->type == MONO_TYPE_VOID) {
3089 mono_mb_emit_byte (mb, CEE_POP);
3090 mono_mb_emit_byte (mb, CEE_RET);
3092 mono_mb_emit_restore_result (mb, sig->ret);
3097 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3098 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3100 res = mono_mb_create_and_cache (cache, sig,
3101 mb, sig, sig->param_count + 16);
3110 MonoMethodSignature *sig;
3112 } SignaturePointerPair;
3115 signature_pointer_pair_hash (gconstpointer data)
3117 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3119 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3123 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3125 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3126 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3130 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3132 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3134 return pair->pointer == user_data;
3138 free_signature_pointer_pair (SignaturePointerPair *pair)
3144 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3146 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3148 MonoMethodBuilder *mb;
3151 gpointer cache_key = NULL;
3152 SignaturePointerPair key;
3153 SignaturePointerPair *new_key;
3154 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3155 int pos0, pos1, pos2;
3157 MonoClass *target_class = NULL;
3158 gboolean closed_over_null = FALSE;
3159 MonoGenericContext *ctx = NULL;
3160 MonoGenericContainer *container = NULL;
3161 MonoMethod *orig_method = NULL;
3163 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3167 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3168 !strcmp (method->name, "Invoke"));
3170 invoke_sig = sig = mono_signature_no_pinvoke (method);
3173 * If the delegate target is null, and the target method is not static, a virtual
3174 * call is made to that method with the first delegate argument as this. This is
3175 * a non-documented .NET feature.
3178 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3179 if (target_method->is_inflated) {
3181 MonoType *target_type;
3183 g_assert (method->signature->hasthis);
3184 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3185 mono_method_get_context (method), &error);
3186 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3187 target_class = mono_class_from_mono_type (target_type);
3189 target_class = target_method->klass;
3192 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3195 if (static_method_with_first_arg_bound) {
3196 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3197 g_assert (!callvirt);
3198 invoke_sig = mono_method_signature (target_method);
3202 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3204 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3205 orig_method = method;
3206 ctx = &((MonoMethodInflated*)method)->context;
3207 method = ((MonoMethodInflated*)method)->declaring;
3209 container = mono_method_get_generic_container (method);
3211 container = method->klass->generic_container;
3212 g_assert (container);
3214 invoke_sig = sig = mono_signature_no_pinvoke (method);
3221 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3222 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3225 cache_key = method->klass;
3226 } else if (static_method_with_first_arg_bound) {
3227 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3228 (GHashFunc)mono_signature_hash,
3229 (GCompareFunc)mono_metadata_signature_equal);
3231 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3233 res = mono_marshal_find_in_cache (cache, invoke_sig);
3236 cache_key = invoke_sig;
3237 } else if (callvirt) {
3238 GHashTable **cache_ptr;
3240 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3242 /* We need to cache the signature+method pair */
3243 mono_marshal_lock ();
3245 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3247 key.sig = invoke_sig;
3248 key.pointer = target_method;
3249 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3250 mono_marshal_unlock ();
3254 // Inflated methods should not be in this cache because it's not stored on the imageset.
3255 g_assert (!method->is_inflated);
3256 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3257 (GHashFunc)mono_signature_hash,
3258 (GCompareFunc)mono_metadata_signature_equal);
3259 res = mono_marshal_find_in_cache (cache, sig);
3265 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3266 static_sig->hasthis = 0;
3267 if (!static_method_with_first_arg_bound)
3268 invoke_sig = static_sig;
3270 if (static_method_with_first_arg_bound)
3271 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3272 else if (closed_over_null)
3273 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3275 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3277 name = mono_signature_to_name (invoke_sig, "invoke");
3279 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3281 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3285 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3287 /* allocate local 0 (object) */
3288 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3289 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3290 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3291 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3292 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3295 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3297 g_assert (sig->hasthis);
3300 * {type: sig->ret} res;
3301 * if (delegates == null) {
3302 * return this.<target> ( args .. );
3304 * int i = 0, len = this.delegates.Length;
3306 * res = this.delegates [i].Invoke ( args .. );
3307 * } while (++i < len);
3312 /* this wrapper can be used in unmanaged-managed transitions */
3313 emit_thread_interrupt_checkpoint (mb);
3315 /* delegates = this.delegates */
3316 mono_mb_emit_ldarg (mb, 0);
3317 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3318 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3319 mono_mb_emit_stloc (mb, local_delegates);
3322 /* if (delegates == null) */
3323 mono_mb_emit_ldloc (mb, local_delegates);
3324 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3326 /* return target.<target_method|method_ptr> ( args .. ); */
3328 /* target = d.target; */
3329 mono_mb_emit_ldarg (mb, 0);
3330 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3331 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3332 mono_mb_emit_stloc (mb, local_target);
3334 /*static methods with bound first arg can have null target and still be bound*/
3335 if (!static_method_with_first_arg_bound) {
3336 /* if target != null */
3337 mono_mb_emit_ldloc (mb, local_target);
3338 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3340 /* then call this->method_ptr nonstatic */
3343 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3345 mono_mb_emit_ldloc (mb, local_target);
3346 for (i = 0; i < sig->param_count; ++i)
3347 mono_mb_emit_ldarg (mb, i + 1);
3348 mono_mb_emit_ldarg (mb, 0);
3349 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3350 mono_mb_emit_byte (mb, CEE_LDIND_I);
3351 mono_mb_emit_ldarg (mb, 0);
3352 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3353 mono_mb_emit_byte (mb, CEE_LDIND_I);
3354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3355 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3356 mono_mb_emit_byte (mb, CEE_RET);
3359 /* else [target == null] call this->method_ptr static */
3360 mono_mb_patch_branch (mb, pos0);
3364 if (!closed_over_null) {
3365 if (target_class->valuetype) {
3366 mono_mb_emit_ldarg (mb, 1);
3367 for (i = 1; i < sig->param_count; ++i)
3368 mono_mb_emit_ldarg (mb, i + 1);
3369 mono_mb_emit_op (mb, CEE_CALL, target_method);
3371 mono_mb_emit_ldarg (mb, 1);
3372 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3373 for (i = 1; i < sig->param_count; ++i)
3374 mono_mb_emit_ldarg (mb, i + 1);
3375 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3378 mono_mb_emit_byte (mb, CEE_LDNULL);
3379 for (i = 0; i < sig->param_count; ++i)
3380 mono_mb_emit_ldarg (mb, i + 1);
3381 mono_mb_emit_op (mb, CEE_CALL, target_method);
3384 if (static_method_with_first_arg_bound) {
3385 mono_mb_emit_ldloc (mb, local_target);
3386 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3387 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3389 for (i = 0; i < sig->param_count; ++i)
3390 mono_mb_emit_ldarg (mb, i + 1);
3391 mono_mb_emit_ldarg (mb, 0);
3392 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3393 mono_mb_emit_byte (mb, CEE_LDIND_I);
3394 mono_mb_emit_ldarg (mb, 0);
3395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3396 mono_mb_emit_byte (mb, CEE_LDIND_I);
3397 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3398 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3401 mono_mb_emit_byte (mb, CEE_RET);
3403 /* else [delegates != null] */
3404 mono_mb_patch_branch (mb, pos2);
3406 /* len = delegates.Length; */
3407 mono_mb_emit_ldloc (mb, local_delegates);
3408 mono_mb_emit_byte (mb, CEE_LDLEN);
3409 mono_mb_emit_byte (mb, CEE_CONV_I4);
3410 mono_mb_emit_stloc (mb, local_len);
3413 mono_mb_emit_icon (mb, 0);
3414 mono_mb_emit_stloc (mb, local_i);
3416 pos1 = mono_mb_get_label (mb);
3418 /* d = delegates [i]; */
3419 mono_mb_emit_ldloc (mb, local_delegates);
3420 mono_mb_emit_ldloc (mb, local_i);
3421 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3422 mono_mb_emit_stloc (mb, local_d);
3424 /* res = d.Invoke ( args .. ); */
3425 mono_mb_emit_ldloc (mb, local_d);
3426 for (i = 0; i < sig->param_count; i++)
3427 mono_mb_emit_ldarg (mb, i + 1);
3429 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3432 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3433 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3436 mono_mb_emit_stloc (mb, local_res);
3439 mono_mb_emit_add_to_local (mb, local_i, 1);
3442 mono_mb_emit_ldloc (mb, local_i);
3443 mono_mb_emit_ldloc (mb, local_len);
3444 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3448 mono_mb_emit_ldloc (mb, local_res);
3449 mono_mb_emit_byte (mb, CEE_RET);
3451 mb->skip_visibility = 1;
3452 #endif /* DISABLE_JIT */
3454 info = mono_wrapper_info_create (mb, subtype);
3459 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3460 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3461 } else if (callvirt) {
3462 new_key = g_new0 (SignaturePointerPair, 1);
3465 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3469 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3473 /* mono_method_print_code (res); */
3479 * the returned method invokes all methods in a multicast delegate.
3482 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3484 gboolean callvirt = FALSE;
3485 gboolean static_method_with_first_arg_bound = FALSE;
3486 MonoMethod *target_method = NULL;
3487 MonoMethodSignature *sig;
3489 sig = mono_signature_no_pinvoke (method);
3491 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3493 target_method = del->method;
3496 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3497 static_method_with_first_arg_bound = TRUE;
3498 target_method = del->method;
3501 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3505 MonoMethodSignature *ctor_sig;
3506 MonoMethodSignature *sig;
3509 /* protected by the marshal lock, contains CtorSigPair pointers */
3510 static GSList *strsig_list = NULL;
3512 static MonoMethodSignature *
3513 lookup_string_ctor_signature (MonoMethodSignature *sig)
3515 MonoMethodSignature *callsig;
3519 mono_marshal_lock ();
3521 for (item = strsig_list; item; item = item->next) {
3522 cs = (CtorSigPair *)item->data;
3523 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3524 * because it is lock-free.
3526 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3531 mono_marshal_unlock ();
3535 static MonoMethodSignature *
3536 add_string_ctor_signature (MonoMethod *method)
3538 MonoMethodSignature *callsig;
3541 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3542 callsig->ret = &mono_defaults.string_class->byval_arg;
3543 cs = g_new (CtorSigPair, 1);
3545 cs->ctor_sig = mono_method_signature (method);
3547 mono_marshal_lock ();
3548 strsig_list = g_slist_prepend (strsig_list, cs);
3549 mono_marshal_unlock ();
3554 * mono_marshal_get_string_ctor_signature:
3556 * Return the modified signature used by string ctors (they return the newly created
3559 MonoMethodSignature*
3560 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3562 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3564 sig = add_string_ctor_signature (method);
3570 get_runtime_invoke_type (MonoType *t, gboolean ret)
3573 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3575 /* Can't share this with 'I' as that needs another indirection */
3576 return &mono_defaults.int_class->this_arg;
3579 if (MONO_TYPE_IS_REFERENCE (t))
3580 return &mono_defaults.object_class->byval_arg;
3583 /* The result needs to be boxed */
3588 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3591 return &mono_defaults.sbyte_class->byval_arg;
3593 return &mono_defaults.int16_class->byval_arg;
3595 return &mono_defaults.int32_class->byval_arg;
3598 return &mono_defaults.int64_class->byval_arg;
3599 case MONO_TYPE_BOOLEAN:
3600 return &mono_defaults.byte_class->byval_arg;
3601 case MONO_TYPE_CHAR:
3602 return &mono_defaults.uint16_class->byval_arg;
3604 return &mono_defaults.int_class->byval_arg;
3605 case MONO_TYPE_VALUETYPE:
3606 if (t->data.klass->enumtype) {
3607 t = mono_class_enum_basetype (t->data.klass);
3617 * mono_marshal_get_runtime_invoke_sig:
3619 * Return a common signature used for sharing runtime invoke wrappers.
3621 static MonoMethodSignature*
3622 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3624 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3627 res->generic_param_count = 0;
3628 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3629 for (i = 0; i < res->param_count; ++i)
3630 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3636 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3638 /* Can't share wrappers which return a vtype since it needs to be boxed */
3639 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))
3642 return mono_metadata_signature_equal (sig1, sig2);
3650 * Emit the call to the wrapper method from a runtime invoke wrapper.
3653 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3654 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3656 gboolean virtual_, gboolean need_direct_wrapper)
3658 static MonoString *string_dummy = NULL;
3660 int *tmp_nullable_locals;
3661 gboolean void_ret = FALSE;
3662 gboolean string_ctor = method && method->string_ctor;
3664 /* to make it work with our special string constructors */
3665 if (!string_dummy) {
3666 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3667 string_dummy = mono_string_new_wrapper ("dummy");
3671 g_assert (sig->hasthis);
3672 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3677 if (mono_gc_is_moving ()) {
3678 mono_mb_emit_ptr (mb, &string_dummy);
3679 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3681 mono_mb_emit_ptr (mb, string_dummy);
3684 mono_mb_emit_ldarg (mb, 0);
3688 tmp_nullable_locals = g_new0 (int, sig->param_count);
3690 for (i = 0; i < sig->param_count; i++) {
3691 MonoType *t = sig->params [i];
3694 mono_mb_emit_ldarg (mb, 1);
3696 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3697 mono_mb_emit_byte (mb, CEE_ADD);
3701 mono_mb_emit_byte (mb, CEE_LDIND_I);
3702 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3703 * So to make this work we unbox it to a local variablee and push a reference to that.
3705 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3706 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3708 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3709 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3710 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3715 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3716 type = sig->params [i]->type;
3720 case MONO_TYPE_BOOLEAN:
3724 case MONO_TYPE_CHAR:
3733 mono_mb_emit_byte (mb, CEE_LDIND_I);
3734 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3736 case MONO_TYPE_STRING:
3737 case MONO_TYPE_CLASS:
3738 case MONO_TYPE_ARRAY:
3740 case MONO_TYPE_SZARRAY:
3741 case MONO_TYPE_OBJECT:
3742 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3744 case MONO_TYPE_GENERICINST:
3745 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3746 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3751 case MONO_TYPE_VALUETYPE:
3752 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3753 type = mono_class_enum_basetype (t->data.klass)->type;
3756 mono_mb_emit_byte (mb, CEE_LDIND_I);
3757 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3758 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3759 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3760 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3762 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3766 g_assert_not_reached ();
3771 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3772 } else if (need_direct_wrapper) {
3773 mono_mb_emit_op (mb, CEE_CALL, method);
3775 mono_mb_emit_ldarg (mb, 3);
3776 mono_mb_emit_calli (mb, callsig);
3779 if (sig->ret->byref) {
3781 g_assert_not_reached ();
3784 switch (sig->ret->type) {
3785 case MONO_TYPE_VOID:
3789 case MONO_TYPE_BOOLEAN:
3790 case MONO_TYPE_CHAR:
3803 case MONO_TYPE_VALUETYPE:
3804 case MONO_TYPE_TYPEDBYREF:
3805 case MONO_TYPE_GENERICINST:
3806 /* box value types */
3807 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3809 case MONO_TYPE_STRING:
3810 case MONO_TYPE_CLASS:
3811 case MONO_TYPE_ARRAY:
3812 case MONO_TYPE_SZARRAY:
3813 case MONO_TYPE_OBJECT:
3817 /* The result is an IntPtr */
3818 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3821 g_assert_not_reached ();
3825 mono_mb_emit_stloc (mb, loc_res);
3827 /* Convert back nullable-byref arguments */
3828 for (i = 0; i < sig->param_count; i++) {
3829 MonoType *t = sig->params [i];
3832 * Box the result and put it back into the array, the caller will have
3833 * to obtain it from there.
3835 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3836 mono_mb_emit_ldarg (mb, 1);
3837 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3838 mono_mb_emit_byte (mb, CEE_ADD);
3840 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3841 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3843 mono_mb_emit_byte (mb, CEE_STIND_REF);
3847 g_free (tmp_nullable_locals);
3851 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3852 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3853 gboolean virtual_, gboolean need_direct_wrapper)
3856 MonoExceptionClause *clause;
3857 int loc_res, loc_exc;
3859 /* The wrapper looks like this:
3865 * } catch (Exception e) {
3873 /* allocate local 0 (object) tmp */
3874 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3875 /* allocate local 1 (object) exc */
3876 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3878 /* *exc is assumed to be initialized to NULL by the caller */
3880 mono_mb_emit_byte (mb, CEE_LDARG_2);
3881 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3886 labels [1] = mono_mb_get_label (mb);
3887 emit_thread_force_interrupt_checkpoint (mb);
3888 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3890 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3892 /* Add a try clause around the call */
3893 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3894 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3895 clause->data.catch_class = mono_defaults.exception_class;
3896 clause->try_offset = labels [1];
3897 clause->try_len = mono_mb_get_label (mb) - labels [1];
3899 clause->handler_offset = mono_mb_get_label (mb);
3902 mono_mb_emit_stloc (mb, loc_exc);
3903 mono_mb_emit_byte (mb, CEE_LDARG_2);
3904 mono_mb_emit_ldloc (mb, loc_exc);
3905 mono_mb_emit_byte (mb, CEE_STIND_REF);
3907 mono_mb_emit_branch (mb, CEE_LEAVE);
3909 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3911 mono_mb_set_clauses (mb, 1, clause);
3913 mono_mb_patch_branch (mb, labels [2]);
3914 mono_mb_emit_ldloc (mb, loc_res);
3915 mono_mb_emit_byte (mb, CEE_RET);
3920 mono_mb_patch_branch (mb, labels [0]);
3921 emit_thread_force_interrupt_checkpoint (mb);
3922 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3924 mono_mb_emit_ldloc (mb, 0);
3925 mono_mb_emit_byte (mb, CEE_RET);
3930 * generates IL code for the runtime invoke function
3931 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3933 * we also catch exceptions if exc != null
3934 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3935 * it means that the compiled code for METHOD does not have to be looked up
3936 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3937 * its METHOD argument.
3940 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3942 MonoMethodSignature *sig, *csig, *callsig;
3943 MonoMethodBuilder *mb;
3944 GHashTable *cache = NULL;
3945 MonoClass *target_klass;
3946 MonoMethod *res = NULL;
3947 static MonoMethodSignature *cctor_signature = NULL;
3948 static MonoMethodSignature *finalize_signature = NULL;
3950 const char *param_names [16];
3951 gboolean need_direct_wrapper = FALSE;
3956 if (!cctor_signature) {
3957 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3958 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3960 if (!finalize_signature) {
3961 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3962 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3963 finalize_signature->hasthis = 1;
3967 need_direct_wrapper = TRUE;
3970 * Use a separate cache indexed by methods to speed things up and to avoid the
3971 * boundless mempool growth caused by the signature_dup stuff below.
3974 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3976 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3978 res = mono_marshal_find_in_cache (cache, method);
3982 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3983 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3985 * Array Get/Set/Address methods. The JIT implements them using inline code
3986 * so we need to create an invoke wrapper which calls the method directly.
3988 need_direct_wrapper = TRUE;
3991 if (method->string_ctor) {
3992 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3994 callsig = add_string_ctor_signature (method);
3995 /* Can't share this as we push a string as this */
3996 need_direct_wrapper = TRUE;
3998 if (method_is_dynamic (method))
3999 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4001 callsig = mono_method_signature (method);
4004 sig = mono_method_signature (method);
4006 target_klass = get_wrapper_target_class (method->klass->image);
4008 /* Try to share wrappers for non-corlib methods with simple signatures */
4009 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4010 callsig = cctor_signature;
4011 target_klass = mono_defaults.object_class;
4012 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4013 callsig = finalize_signature;
4014 target_klass = mono_defaults.object_class;
4017 if (need_direct_wrapper) {
4018 /* Already searched at the start */
4020 MonoMethodSignature *tmp_sig;
4022 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4023 GHashTable **cache_table = NULL;
4025 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4026 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4028 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4030 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4031 (GCompareFunc)runtime_invoke_signature_equal);
4033 /* from mono_marshal_find_in_cache */
4034 mono_marshal_lock ();
4035 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4036 mono_marshal_unlock ();
4043 /* Make a copy of the signature from the image mempool */
4045 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4049 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4051 csig->ret = &mono_defaults.object_class->byval_arg;
4052 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4053 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4055 csig->params [0] = &mono_defaults.object_class->byval_arg;
4056 csig->params [1] = &mono_defaults.int_class->byval_arg;
4057 csig->params [2] = &mono_defaults.int_class->byval_arg;
4058 csig->params [3] = &mono_defaults.int_class->byval_arg;
4061 /* This is called from runtime code so it has to be cdecl */
4062 csig->call_convention = MONO_CALL_C;
4065 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4066 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4070 param_names [0] = "this";
4071 param_names [1] = "params";
4072 param_names [2] = "exc";
4073 param_names [3] = "method";
4074 mono_mb_set_param_names (mb, param_names);
4076 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4079 if (need_direct_wrapper) {
4081 mb->skip_visibility = 1;
4083 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4084 info->d.runtime_invoke.method = method;
4085 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4087 /* taken from mono_mb_create_and_cache */
4088 mono_marshal_lock ();
4089 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4090 mono_marshal_unlock ();
4092 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4093 info->d.runtime_invoke.sig = callsig;
4095 /* Somebody may have created it before us */
4098 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4100 mono_marshal_lock ();
4101 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4103 GHashTable *direct_cache;
4105 g_hash_table_insert (cache, callsig, res);
4106 /* Can't insert it into wrapper_hash since the key is a signature */
4107 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4109 g_hash_table_insert (direct_cache, method, res);
4111 mono_free_method (newm);
4113 mono_marshal_unlock ();
4116 /* end mono_mb_create_and_cache */
4125 * mono_marshal_get_runtime_invoke_dynamic:
4127 * Return a method which can be used to invoke managed methods from native code
4129 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4130 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4131 * ARGS should point to an architecture specific structure containing
4132 * the arguments and space for the return value.
4133 * The other arguments are the same as for runtime_invoke (), except that
4134 * ARGS should contain the this argument too.
4135 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4136 * is only one copy of it, which is useful in full-aot.
4137 * The wrapper info for the wrapper is a WrapperInfo structure.
4140 mono_marshal_get_runtime_invoke_dynamic (void)
4142 static MonoMethod *method;
4143 MonoMethodSignature *csig;
4144 MonoExceptionClause *clause;
4145 MonoMethodBuilder *mb;
4153 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4155 csig->ret = &mono_defaults.void_class->byval_arg;
4156 csig->params [0] = &mono_defaults.int_class->byval_arg;
4157 csig->params [1] = &mono_defaults.int_class->byval_arg;
4158 csig->params [2] = &mono_defaults.int_class->byval_arg;
4159 csig->params [3] = &mono_defaults.int_class->byval_arg;
4161 name = g_strdup ("runtime_invoke_dynamic");
4162 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4166 /* allocate local 0 (object) tmp */
4167 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4168 /* allocate local 1 (object) exc */
4169 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4171 /* cond set *exc to null */
4172 mono_mb_emit_byte (mb, CEE_LDARG_1);
4173 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4174 mono_mb_emit_byte (mb, 3);
4175 mono_mb_emit_byte (mb, CEE_LDARG_1);
4176 mono_mb_emit_byte (mb, CEE_LDNULL);
4177 mono_mb_emit_byte (mb, CEE_STIND_REF);
4179 emit_thread_force_interrupt_checkpoint (mb);
4181 mono_mb_emit_byte (mb, CEE_LDARG_0);
4182 mono_mb_emit_byte (mb, CEE_LDARG_2);
4183 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4184 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4186 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4188 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4189 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4190 clause->try_len = mono_mb_get_label (mb);
4193 clause->data.filter_offset = mono_mb_get_label (mb);
4195 mono_mb_emit_byte (mb, CEE_POP);
4196 mono_mb_emit_byte (mb, CEE_LDARG_1);
4197 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4198 mono_mb_emit_byte (mb, CEE_PREFIX1);
4199 mono_mb_emit_byte (mb, CEE_CGT_UN);
4200 mono_mb_emit_byte (mb, CEE_PREFIX1);
4201 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4203 clause->handler_offset = mono_mb_get_label (mb);
4206 /* store exception */
4207 mono_mb_emit_stloc (mb, 1);
4209 mono_mb_emit_byte (mb, CEE_LDARG_1);
4210 mono_mb_emit_ldloc (mb, 1);
4211 mono_mb_emit_byte (mb, CEE_STIND_REF);
4213 mono_mb_emit_byte (mb, CEE_LDNULL);
4214 mono_mb_emit_stloc (mb, 0);
4216 /* Check for the abort exception */
4217 mono_mb_emit_ldloc (mb, 1);
4218 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4219 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4221 /* Delay the abort exception */
4222 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4224 mono_mb_patch_short_branch (mb, posna);
4225 mono_mb_emit_branch (mb, CEE_LEAVE);
4227 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4229 mono_mb_set_clauses (mb, 1, clause);
4232 mono_mb_patch_branch (mb, pos);
4233 //mono_mb_emit_ldloc (mb, 0);
4234 mono_mb_emit_byte (mb, CEE_RET);
4235 #endif /* DISABLE_JIT */
4237 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4239 mono_marshal_lock ();
4240 /* double-checked locking */
4242 method = mono_mb_create (mb, csig, 16, info);
4244 mono_marshal_unlock ();
4252 * mono_marshal_get_runtime_invoke_for_sig:
4254 * Return a runtime invoke wrapper for a given signature.
4257 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4259 MonoMethodSignature *csig, *callsig;
4260 MonoMethodBuilder *mb;
4262 GHashTable *cache = NULL;
4263 GHashTable **cache_table = NULL;
4264 MonoMethod *res = NULL;
4266 const char *param_names [16];
4269 /* A simplified version of mono_marshal_get_runtime_invoke */
4271 image = mono_defaults.corlib;
4273 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4275 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4277 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4278 (GCompareFunc)runtime_invoke_signature_equal);
4280 /* from mono_marshal_find_in_cache */
4281 mono_marshal_lock ();
4282 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4283 mono_marshal_unlock ();
4290 /* Make a copy of the signature from the image mempool */
4291 callsig = mono_metadata_signature_dup_full (image, callsig);
4293 csig = mono_metadata_signature_alloc (image, 4);
4294 csig->ret = &mono_defaults.object_class->byval_arg;
4295 csig->params [0] = &mono_defaults.object_class->byval_arg;
4296 csig->params [1] = &mono_defaults.int_class->byval_arg;
4297 csig->params [2] = &mono_defaults.int_class->byval_arg;
4298 csig->params [3] = &mono_defaults.int_class->byval_arg;
4301 /* This is called from runtime code so it has to be cdecl */
4302 csig->call_convention = MONO_CALL_C;
4305 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4306 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4310 param_names [0] = "this";
4311 param_names [1] = "params";
4312 param_names [2] = "exc";
4313 param_names [3] = "method";
4314 mono_mb_set_param_names (mb, param_names);
4316 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4319 /* taken from mono_mb_create_and_cache */
4320 mono_marshal_lock ();
4321 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4322 mono_marshal_unlock ();
4324 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4325 info->d.runtime_invoke.sig = callsig;
4327 /* Somebody may have created it before us */
4330 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4332 mono_marshal_lock ();
4333 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4336 g_hash_table_insert (cache, callsig, res);
4338 mono_free_method (newm);
4340 mono_marshal_unlock ();
4343 /* end mono_mb_create_and_cache */
4352 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4354 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4355 klass->name_space, klass->name);
4357 mono_mb_emit_exception_marshal_directive (mb, msg);
4362 * generates IL code for the icall wrapper (the generated method
4363 * calls the unmanaged code in func)
4364 * The wrapper info for the wrapper is a WrapperInfo structure.
4367 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4369 MonoMethodSignature *csig, *csig2;
4370 MonoMethodBuilder *mb;
4375 g_assert (sig->pinvoke);
4377 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4379 mb->method->save_lmf = 1;
4381 /* Add an explicit this argument */
4383 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4385 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4389 mono_mb_emit_byte (mb, CEE_LDARG_0);
4391 for (i = 0; i < sig->param_count; i++)
4392 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4394 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4395 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4396 mono_mb_emit_calli (mb, csig2);
4397 if (check_exceptions)
4398 emit_thread_interrupt_checkpoint (mb);
4399 mono_mb_emit_byte (mb, CEE_RET);
4402 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4404 if (csig->call_convention == MONO_CALL_VARARG)
4405 csig->call_convention = 0;
4407 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4408 info->d.icall.func = (gpointer)func;
4409 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4416 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4417 MonoMarshalSpec *spec,
4418 int conv_arg, MonoType **conv_arg_type,
4419 MarshalAction action)
4422 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4423 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4429 static MonoClass *ICustomMarshaler = NULL;
4430 static MonoMethod *cleanup_native, *cleanup_managed;
4431 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4432 MonoMethod *get_instance = NULL;
4433 MonoMethodBuilder *mb = m->mb;
4434 char *exception_msg = NULL;
4438 if (!ICustomMarshaler) {
4439 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4441 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4442 goto handle_exception;
4445 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4446 g_assert (cleanup_native);
4447 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4448 g_assert (cleanup_managed);
4449 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4450 g_assert (marshal_managed_to_native);
4451 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4452 g_assert (marshal_native_to_managed);
4454 mono_memory_barrier ();
4455 ICustomMarshaler = klass;
4458 if (spec->data.custom_data.image)
4459 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4461 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4462 g_assert (mtype != NULL);
4463 mono_error_assert_ok (&error);
4464 mklass = mono_class_from_mono_type (mtype);
4465 g_assert (mklass != NULL);
4467 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4468 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4470 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4472 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4473 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4474 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4475 (get_sig->params [0]->type != MONO_TYPE_STRING))
4476 get_instance = NULL;
4480 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);
4483 /* Throw exception and emit compensation code if neccesary */
4484 if (exception_msg) {
4486 case MARSHAL_ACTION_CONV_IN:
4487 case MARSHAL_ACTION_CONV_RESULT:
4488 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4489 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4490 mono_mb_emit_byte (mb, CEE_POP);
4492 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4493 g_free (exception_msg);
4496 case MARSHAL_ACTION_PUSH:
4497 mono_mb_emit_byte (mb, CEE_LDNULL);
4505 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4506 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4509 case MARSHAL_ACTION_CONV_IN:
4511 case MONO_TYPE_CLASS:
4512 case MONO_TYPE_OBJECT:
4513 case MONO_TYPE_STRING:
4514 case MONO_TYPE_ARRAY:
4515 case MONO_TYPE_SZARRAY:
4516 case MONO_TYPE_VALUETYPE:
4520 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4521 g_assert_not_reached ();
4525 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4527 mono_mb_emit_byte (mb, CEE_LDNULL);
4528 mono_mb_emit_stloc (mb, conv_arg);
4530 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4533 /* Minic MS.NET behavior */
4534 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4537 /* Check for null */
4538 mono_mb_emit_ldarg (mb, argnum);
4540 mono_mb_emit_byte (mb, CEE_LDIND_I);
4541 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4543 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4545 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4547 mono_mb_emit_ldarg (mb, argnum);
4549 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4551 if (t->type == MONO_TYPE_VALUETYPE) {
4553 * Since we can't determine the type of the argument, we
4554 * will assume the unmanaged function takes a pointer.
4556 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4558 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4561 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4562 mono_mb_emit_stloc (mb, conv_arg);
4564 mono_mb_patch_branch (mb, pos2);
4567 case MARSHAL_ACTION_CONV_OUT:
4568 /* Check for null */
4569 mono_mb_emit_ldloc (mb, conv_arg);
4570 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4573 mono_mb_emit_ldarg (mb, argnum);
4575 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4577 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4579 mono_mb_emit_ldloc (mb, conv_arg);
4580 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4581 mono_mb_emit_byte (mb, CEE_STIND_REF);
4582 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4583 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4585 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4587 mono_mb_emit_ldloc (mb, conv_arg);
4588 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4590 /* We have nowhere to store the result */
4591 mono_mb_emit_byte (mb, CEE_POP);
4594 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4596 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4598 mono_mb_emit_ldloc (mb, conv_arg);
4600 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4602 mono_mb_patch_branch (mb, pos2);
4605 case MARSHAL_ACTION_PUSH:
4607 mono_mb_emit_ldloc_addr (mb, conv_arg);
4609 mono_mb_emit_ldloc (mb, conv_arg);
4612 case MARSHAL_ACTION_CONV_RESULT:
4613 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4615 mono_mb_emit_stloc (mb, 3);
4617 mono_mb_emit_ldloc (mb, 3);
4618 mono_mb_emit_stloc (mb, loc1);
4620 /* Check for null */
4621 mono_mb_emit_ldloc (mb, 3);
4622 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4624 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4626 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4627 mono_mb_emit_byte (mb, CEE_DUP);
4629 mono_mb_emit_ldloc (mb, 3);
4630 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4631 mono_mb_emit_stloc (mb, 3);
4633 mono_mb_emit_ldloc (mb, loc1);
4634 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4636 mono_mb_patch_branch (mb, pos2);
4639 case MARSHAL_ACTION_MANAGED_CONV_IN:
4640 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4642 mono_mb_emit_byte (mb, CEE_LDNULL);
4643 mono_mb_emit_stloc (mb, conv_arg);
4645 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4648 /* Check for null */
4649 mono_mb_emit_ldarg (mb, argnum);
4651 mono_mb_emit_byte (mb, CEE_LDIND_I);
4652 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4654 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4655 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4657 mono_mb_emit_ldarg (mb, argnum);
4659 mono_mb_emit_byte (mb, CEE_LDIND_I);
4661 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4662 mono_mb_emit_stloc (mb, conv_arg);
4664 mono_mb_patch_branch (mb, pos2);
4667 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4668 g_assert (!t->byref);
4670 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4672 mono_mb_emit_stloc (mb, 3);
4674 mono_mb_emit_ldloc (mb, 3);
4675 mono_mb_emit_stloc (mb, loc1);
4677 /* Check for null */
4678 mono_mb_emit_ldloc (mb, 3);
4679 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4681 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4682 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4683 mono_mb_emit_byte (mb, CEE_DUP);
4685 mono_mb_emit_ldloc (mb, 3);
4686 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4687 mono_mb_emit_stloc (mb, 3);
4689 mono_mb_emit_ldloc (mb, loc1);
4690 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4692 mono_mb_patch_branch (mb, pos2);
4695 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4697 /* Check for null */
4698 mono_mb_emit_ldloc (mb, conv_arg);
4699 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4702 mono_mb_emit_ldarg (mb, argnum);
4704 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4706 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4708 mono_mb_emit_ldloc (mb, conv_arg);
4709 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4710 mono_mb_emit_byte (mb, CEE_STIND_I);
4713 /* Call CleanUpManagedData */
4714 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4716 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4718 mono_mb_emit_ldloc (mb, conv_arg);
4719 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4721 mono_mb_patch_branch (mb, pos2);
4725 g_assert_not_reached ();
4733 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4734 MonoMarshalSpec *spec,
4735 int conv_arg, MonoType **conv_arg_type,
4736 MarshalAction action)
4739 MonoMethodBuilder *mb = m->mb;
4742 case MARSHAL_ACTION_CONV_IN: {
4743 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4745 g_assert (t->type == MONO_TYPE_OBJECT);
4746 g_assert (!t->byref);
4748 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4749 mono_mb_emit_ldarg (mb, argnum);
4750 mono_mb_emit_icon (mb, encoding);
4751 mono_mb_emit_icon (mb, t->attrs);
4752 mono_mb_emit_icall (mb, mono_marshal_asany);
4753 mono_mb_emit_stloc (mb, conv_arg);
4757 case MARSHAL_ACTION_PUSH:
4758 mono_mb_emit_ldloc (mb, conv_arg);
4761 case MARSHAL_ACTION_CONV_OUT: {
4762 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4764 mono_mb_emit_ldarg (mb, argnum);
4765 mono_mb_emit_ldloc (mb, conv_arg);
4766 mono_mb_emit_icon (mb, encoding);
4767 mono_mb_emit_icon (mb, t->attrs);
4768 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4773 g_assert_not_reached ();
4780 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4781 MonoMarshalSpec *spec,
4782 int conv_arg, MonoType **conv_arg_type,
4783 MarshalAction action)
4786 MonoMethodBuilder *mb = m->mb;
4787 MonoClass *klass, *date_time_class;
4790 klass = mono_class_from_mono_type (t);
4792 date_time_class = mono_class_get_date_time_class ();
4795 case MARSHAL_ACTION_CONV_IN:
4796 if (klass == date_time_class) {
4797 /* Convert it to an OLE DATE type */
4798 static MonoMethod *to_oadate;
4801 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4802 g_assert (to_oadate);
4804 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4807 mono_mb_emit_ldarg (mb, argnum);
4808 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4811 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4813 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4815 mono_mb_emit_ldarg_addr (mb, argnum);
4816 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4817 mono_mb_emit_stloc (mb, conv_arg);
4821 mono_mb_patch_branch (mb, pos);
4825 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4826 klass->blittable || klass->enumtype)
4829 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4831 /* store the address of the source into local variable 0 */
4833 mono_mb_emit_ldarg (mb, argnum);
4835 mono_mb_emit_ldarg_addr (mb, argnum);
4837 mono_mb_emit_stloc (mb, 0);
4839 /* allocate space for the native struct and
4840 * store the address into local variable 1 (dest) */
4841 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4842 mono_mb_emit_byte (mb, CEE_PREFIX1);
4843 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4844 mono_mb_emit_stloc (mb, conv_arg);
4847 mono_mb_emit_ldloc (mb, 0);
4848 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4851 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4853 mono_mb_emit_ldloc (mb, conv_arg);
4854 mono_mb_emit_stloc (mb, 1);
4856 /* emit valuetype conversion code */
4857 emit_struct_conv (mb, klass, FALSE);
4861 mono_mb_patch_branch (mb, pos);
4864 case MARSHAL_ACTION_PUSH:
4865 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4867 g_assert (!t->byref);
4869 /* Have to change the signature since the vtype is passed byref */
4870 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4872 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4873 klass->blittable || klass->enumtype)
4874 mono_mb_emit_ldarg_addr (mb, argnum);
4876 mono_mb_emit_ldloc (mb, conv_arg);
4880 if (klass == date_time_class) {
4882 mono_mb_emit_ldloc_addr (mb, conv_arg);
4884 mono_mb_emit_ldloc (mb, conv_arg);
4888 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4889 klass->blittable || klass->enumtype) {
4890 mono_mb_emit_ldarg (mb, argnum);
4893 mono_mb_emit_ldloc (mb, conv_arg);
4895 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4896 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4900 case MARSHAL_ACTION_CONV_OUT:
4901 if (klass == date_time_class) {
4902 /* Convert from an OLE DATE type */
4903 static MonoMethod *from_oadate;
4908 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4910 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4911 g_assert (from_oadate);
4913 mono_mb_emit_ldarg (mb, argnum);
4914 mono_mb_emit_ldloc (mb, conv_arg);
4915 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4916 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4921 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4922 klass->blittable || klass->enumtype)
4926 /* dst = argument */
4927 mono_mb_emit_ldarg (mb, argnum);
4928 mono_mb_emit_stloc (mb, 1);
4930 mono_mb_emit_ldloc (mb, 1);
4931 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4933 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4934 /* src = tmp_locals [i] */
4935 mono_mb_emit_ldloc (mb, conv_arg);
4936 mono_mb_emit_stloc (mb, 0);
4938 /* emit valuetype conversion code */
4939 emit_struct_conv (mb, klass, TRUE);
4943 emit_struct_free (mb, klass, conv_arg);
4946 mono_mb_patch_branch (mb, pos);
4949 case MARSHAL_ACTION_CONV_RESULT:
4950 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4952 mono_mb_emit_stloc (mb, 3);
4956 /* load pointer to returned value type */
4957 g_assert (m->vtaddr_var);
4958 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4959 /* store the address of the source into local variable 0 */
4960 mono_mb_emit_stloc (mb, 0);
4962 mono_mb_emit_ldloc_addr (mb, 3);
4963 mono_mb_emit_stloc (mb, 1);
4965 /* emit valuetype conversion code */
4966 emit_struct_conv (mb, klass, TRUE);
4969 case MARSHAL_ACTION_MANAGED_CONV_IN:
4970 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4971 klass->blittable || klass->enumtype) {
4976 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4978 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4982 mono_mb_emit_ldarg (mb, argnum);
4984 mono_mb_emit_ldarg_addr (mb, argnum);
4985 mono_mb_emit_stloc (mb, 0);
4988 mono_mb_emit_ldloc (mb, 0);
4989 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4992 mono_mb_emit_ldloc_addr (mb, conv_arg);
4993 mono_mb_emit_stloc (mb, 1);
4995 /* emit valuetype conversion code */
4996 emit_struct_conv (mb, klass, TRUE);
4999 mono_mb_patch_branch (mb, pos);
5002 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5003 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5004 klass->blittable || klass->enumtype) {
5008 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5011 /* Check for null */
5012 mono_mb_emit_ldarg (mb, argnum);
5013 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5016 mono_mb_emit_ldloc_addr (mb, conv_arg);
5017 mono_mb_emit_stloc (mb, 0);
5020 mono_mb_emit_ldarg (mb, argnum);
5021 mono_mb_emit_stloc (mb, 1);
5023 /* emit valuetype conversion code */
5024 emit_struct_conv (mb, klass, FALSE);
5026 mono_mb_patch_branch (mb, pos2);
5029 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5030 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5031 klass->blittable || klass->enumtype) {
5032 mono_mb_emit_stloc (mb, 3);
5037 /* load pointer to returned value type */
5038 g_assert (m->vtaddr_var);
5039 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5041 /* store the address of the source into local variable 0 */
5042 mono_mb_emit_stloc (mb, 0);
5043 /* allocate space for the native struct and
5044 * store the address into dst_ptr */
5045 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5046 m->retobj_class = klass;
5047 g_assert (m->retobj_var);
5048 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5049 mono_mb_emit_byte (mb, CEE_CONV_I);
5050 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5051 mono_mb_emit_stloc (mb, 1);
5052 mono_mb_emit_ldloc (mb, 1);
5053 mono_mb_emit_stloc (mb, m->retobj_var);
5055 /* emit valuetype conversion code */
5056 emit_struct_conv (mb, klass, FALSE);
5060 g_assert_not_reached ();
5067 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5068 MonoMarshalSpec *spec,
5069 int conv_arg, MonoType **conv_arg_type,
5070 MarshalAction action)
5074 case MARSHAL_ACTION_CONV_IN:
5075 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5077 case MARSHAL_ACTION_MANAGED_CONV_IN:
5078 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5082 MonoMethodBuilder *mb = m->mb;
5083 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5084 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5088 case MARSHAL_ACTION_CONV_IN:
5089 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5090 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5093 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5096 mono_mb_emit_ldarg (mb, argnum);
5097 mono_mb_emit_byte (mb, CEE_LDIND_I);
5099 mono_mb_emit_ldarg (mb, argnum);
5103 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5104 mono_mb_emit_exception_marshal_directive (mb, msg);
5106 mono_mb_emit_icall (mb, conv_to_icall (conv));
5108 mono_mb_emit_stloc (mb, conv_arg);
5112 case MARSHAL_ACTION_CONV_OUT:
5113 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5115 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5116 mono_mb_emit_exception_marshal_directive (mb, msg);
5120 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5121 static MonoMethod *m;
5124 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5129 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5130 mono_mb_emit_exception_marshal_directive (mb, msg);
5135 * Have to allocate a new string with the same length as the original, and
5136 * copy the contents of the buffer pointed to by CONV_ARG into it.
5138 g_assert (t->byref);
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_ldloc (mb, conv_arg);
5141 mono_mb_emit_ldarg (mb, argnum);
5142 mono_mb_emit_byte (mb, CEE_LDIND_I);
5143 mono_mb_emit_managed_call (mb, m, NULL);
5144 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5145 mono_mb_emit_byte (mb, CEE_STIND_REF);
5146 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5147 mono_mb_emit_ldarg (mb, argnum);
5148 mono_mb_emit_ldloc (mb, conv_arg);
5149 mono_mb_emit_icall (mb, conv_to_icall (conv));
5150 mono_mb_emit_byte (mb, CEE_STIND_REF);
5155 mono_mb_emit_ldloc (mb, conv_arg);
5156 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5157 mono_mb_emit_icall (mb, mono_free_bstr);
5159 mono_mb_emit_icall (mb, mono_marshal_free);
5163 case MARSHAL_ACTION_PUSH:
5164 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5165 mono_mb_emit_ldloc_addr (mb, conv_arg);
5167 mono_mb_emit_ldloc (mb, conv_arg);
5170 case MARSHAL_ACTION_CONV_RESULT:
5171 mono_mb_emit_stloc (mb, 0);
5173 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5175 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5176 mono_mb_emit_exception_marshal_directive (mb, msg);
5180 mono_mb_emit_ldloc (mb, 0);
5181 mono_mb_emit_icall (mb, conv_to_icall (conv));
5182 mono_mb_emit_stloc (mb, 3);
5184 /* free the string */
5185 mono_mb_emit_ldloc (mb, 0);
5186 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5187 mono_mb_emit_icall (mb, mono_free_bstr);
5189 mono_mb_emit_icall (mb, mono_marshal_free);
5192 case MARSHAL_ACTION_MANAGED_CONV_IN:
5193 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5195 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5198 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5202 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5204 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5205 mono_mb_emit_exception_marshal_directive (mb, msg);
5209 mono_mb_emit_ldarg (mb, argnum);
5211 mono_mb_emit_byte (mb, CEE_LDIND_I);
5212 mono_mb_emit_icall (mb, conv_to_icall (conv));
5213 mono_mb_emit_stloc (mb, conv_arg);
5216 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5219 mono_mb_emit_ldarg (mb, argnum);
5220 mono_mb_emit_ldloc (mb, conv_arg);
5221 mono_mb_emit_icall (mb, conv_to_icall (conv));
5222 mono_mb_emit_byte (mb, CEE_STIND_I);
5227 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5228 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5229 /* We need to make a copy so the caller is able to free it */
5230 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5232 mono_mb_emit_icall (mb, conv_to_icall (conv));
5233 mono_mb_emit_stloc (mb, 3);
5237 g_assert_not_reached ();
5245 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5246 MonoMarshalSpec *spec, int conv_arg,
5247 MonoType **conv_arg_type, MarshalAction action)
5250 if (action == MARSHAL_ACTION_CONV_IN)
5251 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5253 MonoMethodBuilder *mb = m->mb;
5256 case MARSHAL_ACTION_CONV_IN: {
5257 MonoType *intptr_type;
5258 int dar_release_slot, pos;
5260 intptr_type = &mono_defaults.int_class->byval_arg;
5261 conv_arg = mono_mb_add_local (mb, intptr_type);
5262 *conv_arg_type = intptr_type;
5264 if (!sh_dangerous_add_ref)
5265 init_safe_handle ();
5267 mono_mb_emit_ldarg (mb, argnum);
5268 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5269 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5271 mono_mb_patch_branch (mb, pos);
5274 * My tests in show that ref SafeHandles are not really
5275 * passed as ref objects. Instead a NULL is passed as the
5278 mono_mb_emit_icon (mb, 0);
5279 mono_mb_emit_stloc (mb, conv_arg);
5283 /* Create local to hold the ref parameter to DangerousAddRef */
5284 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5286 /* set release = false; */
5287 mono_mb_emit_icon (mb, 0);
5288 mono_mb_emit_stloc (mb, dar_release_slot);
5290 /* safehandle.DangerousAddRef (ref release) */
5291 mono_mb_emit_ldarg (mb, argnum);
5292 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5293 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5295 /* Pull the handle field from SafeHandle */
5296 mono_mb_emit_ldarg (mb, argnum);
5297 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5298 mono_mb_emit_byte (mb, CEE_LDIND_I);
5299 mono_mb_emit_stloc (mb, conv_arg);
5304 case MARSHAL_ACTION_PUSH:
5306 mono_mb_emit_ldloc_addr (mb, conv_arg);
5308 mono_mb_emit_ldloc (mb, conv_arg);
5311 case MARSHAL_ACTION_CONV_OUT: {
5312 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5313 int dar_release_slot = conv_arg + 1;
5316 if (!sh_dangerous_release)
5317 init_safe_handle ();
5323 * My tests indicate that ref SafeHandles parameters are not actually
5324 * passed by ref, but instead a new Handle is created regardless of
5325 * whether a change happens in the unmanaged side.
5327 * Also, the Handle is created before calling into unmanaged code,
5328 * but we do not support that mechanism (getting to the original
5329 * handle) and it makes no difference where we create this
5331 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5333 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5336 /* refval = new SafeHandleDerived ()*/
5337 mono_mb_emit_ldarg (mb, argnum);
5338 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5339 mono_mb_emit_byte (mb, CEE_STIND_REF);
5341 /* refval.handle = returned_handle */
5342 mono_mb_emit_ldarg (mb, argnum);
5343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5344 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5345 mono_mb_emit_ldloc (mb, conv_arg);
5346 mono_mb_emit_byte (mb, CEE_STIND_I);
5348 mono_mb_emit_ldloc (mb, dar_release_slot);
5349 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5350 mono_mb_emit_ldarg (mb, argnum);
5351 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5352 mono_mb_patch_branch (mb, label_next);
5357 case MARSHAL_ACTION_CONV_RESULT: {
5358 MonoMethod *ctor = NULL;
5359 int intptr_handle_slot;
5361 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5362 mono_mb_emit_byte (mb, CEE_POP);
5363 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5367 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5369 mono_mb_emit_byte (mb, CEE_POP);
5370 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5373 /* Store the IntPtr results into a local */
5374 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5375 mono_mb_emit_stloc (mb, intptr_handle_slot);
5377 /* Create return value */
5378 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5379 mono_mb_emit_stloc (mb, 3);
5381 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5382 mono_mb_emit_ldloc (mb, 3);
5383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5384 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5385 mono_mb_emit_byte (mb, CEE_STIND_I);
5389 case MARSHAL_ACTION_MANAGED_CONV_IN:
5390 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5393 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5394 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5397 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5398 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5401 printf ("Unhandled case for MarshalAction: %d\n", action);
5409 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5410 MonoMarshalSpec *spec, int conv_arg,
5411 MonoType **conv_arg_type, MarshalAction action)
5414 if (action == MARSHAL_ACTION_CONV_IN)
5415 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5417 MonoMethodBuilder *mb = m->mb;
5420 case MARSHAL_ACTION_CONV_IN: {
5421 MonoType *intptr_type;
5423 intptr_type = &mono_defaults.int_class->byval_arg;
5424 conv_arg = mono_mb_add_local (mb, intptr_type);
5425 *conv_arg_type = intptr_type;
5428 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5429 mono_mb_emit_exception_marshal_directive (mb, msg);
5432 mono_mb_emit_ldarg_addr (mb, argnum);
5433 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5434 mono_mb_emit_byte (mb, CEE_ADD);
5435 mono_mb_emit_byte (mb, CEE_LDIND_I);
5436 mono_mb_emit_stloc (mb, conv_arg);
5440 case MARSHAL_ACTION_PUSH:
5441 mono_mb_emit_ldloc (mb, conv_arg);
5444 case MARSHAL_ACTION_CONV_OUT: {
5445 /* no resource release required */
5449 case MARSHAL_ACTION_CONV_RESULT: {
5450 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5451 mono_mb_emit_exception_marshal_directive (mb, msg);
5455 case MARSHAL_ACTION_MANAGED_CONV_IN:
5456 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5459 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5460 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5463 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5464 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5467 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5475 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5476 MonoMarshalSpec *spec,
5477 int conv_arg, MonoType **conv_arg_type,
5478 MarshalAction action)
5481 if (action == MARSHAL_ACTION_CONV_IN)
5482 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5484 MonoMethodBuilder *mb = m->mb;
5485 MonoClass *klass = mono_class_from_mono_type (t);
5489 case MARSHAL_ACTION_CONV_IN:
5490 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5491 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5493 m->orig_conv_args [argnum] = 0;
5495 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5496 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5497 mono_mb_emit_exception_marshal_directive (mb, msg);
5501 if (klass->delegate) {
5503 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5504 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5505 mono_mb_emit_exception_marshal_directive (mb, msg);
5507 mono_mb_emit_byte (mb, CEE_LDNULL);
5508 mono_mb_emit_stloc (mb, conv_arg);
5510 mono_mb_emit_ldarg (mb, argnum);
5511 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5512 mono_mb_emit_stloc (mb, conv_arg);
5514 } else if (klass == mono_defaults.stringbuilder_class) {
5515 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5516 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5520 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5521 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5522 mono_mb_emit_exception_marshal_directive (mb, msg);
5528 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5532 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5533 mono_mb_emit_exception_marshal_directive (mb, msg);
5537 mono_mb_emit_ldarg (mb, argnum);
5539 mono_mb_emit_byte (mb, CEE_LDIND_I);
5541 mono_mb_emit_icall (mb, conv_to_icall (conv));
5542 mono_mb_emit_stloc (mb, conv_arg);
5543 } else if (klass->blittable) {
5544 mono_mb_emit_byte (mb, CEE_LDNULL);
5545 mono_mb_emit_stloc (mb, conv_arg);
5547 mono_mb_emit_ldarg (mb, argnum);
5548 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5550 mono_mb_emit_ldarg (mb, argnum);
5551 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5552 mono_mb_emit_stloc (mb, conv_arg);
5554 mono_mb_patch_branch (mb, pos);
5557 mono_mb_emit_byte (mb, CEE_LDNULL);
5558 mono_mb_emit_stloc (mb, conv_arg);
5561 /* we dont need any conversions for out parameters */
5562 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5565 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_byte (mb, CEE_LDIND_I);
5569 mono_mb_emit_ldarg (mb, argnum);
5570 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5571 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5574 /* store the address of the source into local variable 0 */
5575 mono_mb_emit_stloc (mb, 0);
5576 mono_mb_emit_ldloc (mb, 0);
5577 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5579 /* allocate space for the native struct and store the address */
5580 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5581 mono_mb_emit_byte (mb, CEE_PREFIX1);
5582 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5583 mono_mb_emit_stloc (mb, conv_arg);
5586 /* Need to store the original buffer so we can free it later */
5587 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5588 mono_mb_emit_ldloc (mb, conv_arg);
5589 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5592 /* set the src_ptr */
5593 mono_mb_emit_ldloc (mb, 0);
5594 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5595 mono_mb_emit_stloc (mb, 0);
5598 mono_mb_emit_ldloc (mb, conv_arg);
5599 mono_mb_emit_stloc (mb, 1);
5601 /* emit valuetype conversion code */
5602 emit_struct_conv (mb, klass, FALSE);
5604 mono_mb_patch_branch (mb, pos);
5608 case MARSHAL_ACTION_CONV_OUT:
5609 if (klass == mono_defaults.stringbuilder_class) {
5611 MonoMarshalNative encoding;
5612 MonoMarshalConv conv;
5614 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5615 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5617 g_assert (encoding != -1);
5620 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5624 mono_mb_emit_ldarg (mb, argnum);
5625 mono_mb_emit_ldloc (mb, conv_arg);
5628 case MONO_NATIVE_LPWSTR:
5629 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5631 case MONO_NATIVE_LPSTR:
5632 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5635 g_assert_not_reached ();
5638 mono_mb_emit_byte (mb, CEE_STIND_REF);
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_ldloc (mb, conv_arg);
5643 mono_mb_emit_icall (mb, conv_to_icall (conv));
5647 mono_mb_emit_ldloc (mb, conv_arg);
5648 mono_mb_emit_icall (mb, mono_marshal_free);
5653 if (klass->delegate) {
5655 mono_mb_emit_ldarg (mb, argnum);
5656 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5657 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5658 mono_mb_emit_ldloc (mb, conv_arg);
5659 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5660 mono_mb_emit_byte (mb, CEE_STIND_REF);
5665 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5666 /* allocate a new object */
5667 mono_mb_emit_ldarg (mb, argnum);
5668 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5669 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5670 mono_mb_emit_byte (mb, CEE_STIND_REF);
5673 /* dst = *argument */
5674 mono_mb_emit_ldarg (mb, argnum);
5677 mono_mb_emit_byte (mb, CEE_LDIND_I);
5679 mono_mb_emit_stloc (mb, 1);
5681 mono_mb_emit_ldloc (mb, 1);
5682 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5684 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5685 mono_mb_emit_ldloc (mb, 1);
5686 mono_mb_emit_icon (mb, sizeof (MonoObject));
5687 mono_mb_emit_byte (mb, CEE_ADD);
5688 mono_mb_emit_stloc (mb, 1);
5690 /* src = tmp_locals [i] */
5691 mono_mb_emit_ldloc (mb, conv_arg);
5692 mono_mb_emit_stloc (mb, 0);
5694 /* emit valuetype conversion code */
5695 emit_struct_conv (mb, klass, TRUE);
5697 /* Free the structure returned by the native code */
5698 emit_struct_free (mb, klass, conv_arg);
5700 if (m->orig_conv_args [argnum]) {
5702 * If the native function changed the pointer, then free
5703 * the original structure plus the new pointer.
5705 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5706 mono_mb_emit_ldloc (mb, conv_arg);
5707 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5709 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5710 g_assert (m->orig_conv_args [argnum]);
5712 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 mono_mb_emit_icall (mb, mono_marshal_free);
5718 mono_mb_patch_branch (mb, pos2);
5722 /* Free the original structure passed to native code */
5723 emit_struct_free (mb, klass, conv_arg);
5725 mono_mb_patch_branch (mb, pos);
5728 case MARSHAL_ACTION_PUSH:
5730 mono_mb_emit_ldloc_addr (mb, conv_arg);
5732 mono_mb_emit_ldloc (mb, conv_arg);
5735 case MARSHAL_ACTION_CONV_RESULT:
5736 if (klass->delegate) {
5737 g_assert (!t->byref);
5738 mono_mb_emit_stloc (mb, 0);
5739 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5740 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5741 mono_mb_emit_ldloc (mb, 0);
5742 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5743 mono_mb_emit_stloc (mb, 3);
5746 mono_mb_emit_stloc (mb, 0);
5748 /* Make a copy since emit_conv modifies local 0 */
5749 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5750 mono_mb_emit_ldloc (mb, 0);
5751 mono_mb_emit_stloc (mb, loc);
5753 mono_mb_emit_byte (mb, CEE_LDNULL);
5754 mono_mb_emit_stloc (mb, 3);
5756 mono_mb_emit_ldloc (mb, 0);
5757 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5759 /* allocate result object */
5761 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5762 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5763 mono_mb_emit_stloc (mb, 3);
5767 mono_mb_emit_ldloc (mb, 3);
5768 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5769 mono_mb_emit_stloc (mb, 1);
5771 /* emit conversion code */
5772 emit_struct_conv (mb, klass, TRUE);
5774 emit_struct_free (mb, klass, loc);
5776 /* Free the pointer allocated by unmanaged code */
5777 mono_mb_emit_ldloc (mb, loc);
5778 mono_mb_emit_icall (mb, mono_marshal_free);
5779 mono_mb_patch_branch (mb, pos);
5783 case MARSHAL_ACTION_MANAGED_CONV_IN:
5784 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5786 if (klass->delegate) {
5787 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5788 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5789 mono_mb_emit_ldarg (mb, argnum);
5791 mono_mb_emit_byte (mb, CEE_LDIND_I);
5792 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5793 mono_mb_emit_stloc (mb, conv_arg);
5797 if (klass == mono_defaults.stringbuilder_class) {
5798 MonoMarshalNative encoding;
5800 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5803 g_assert (encoding == MONO_NATIVE_LPSTR);
5805 g_assert (!t->byref);
5806 g_assert (encoding != -1);
5808 mono_mb_emit_ldarg (mb, argnum);
5809 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5810 mono_mb_emit_stloc (mb, conv_arg);
5814 /* The class can not have an automatic layout */
5815 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5816 mono_mb_emit_auto_layout_exception (mb, klass);
5820 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5821 mono_mb_emit_byte (mb, CEE_LDNULL);
5822 mono_mb_emit_stloc (mb, conv_arg);
5827 mono_mb_emit_ldarg (mb, argnum);
5831 /* Check for NULL and raise an exception */
5832 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5834 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5836 mono_mb_patch_branch (mb, pos2);
5837 mono_mb_emit_ldarg (mb, argnum);
5838 mono_mb_emit_byte (mb, CEE_LDIND_I);
5841 mono_mb_emit_stloc (mb, 0);
5843 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5844 mono_mb_emit_stloc (mb, conv_arg);
5846 mono_mb_emit_ldloc (mb, 0);
5847 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5849 /* Create and set dst */
5850 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5851 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5852 mono_mb_emit_stloc (mb, conv_arg);
5853 mono_mb_emit_ldloc (mb, conv_arg);
5854 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5855 mono_mb_emit_stloc (mb, 1);
5857 /* emit valuetype conversion code */
5858 emit_struct_conv (mb, klass, TRUE);
5860 mono_mb_patch_branch (mb, pos);
5863 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5864 if (klass->delegate) {
5866 mono_mb_emit_ldarg (mb, argnum);
5867 mono_mb_emit_ldloc (mb, conv_arg);
5868 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5869 mono_mb_emit_byte (mb, CEE_STIND_I);
5875 /* Check for null */
5876 mono_mb_emit_ldloc (mb, conv_arg);
5877 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5878 mono_mb_emit_ldarg (mb, argnum);
5879 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5880 mono_mb_emit_byte (mb, CEE_STIND_REF);
5881 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5883 mono_mb_patch_branch (mb, pos);
5886 mono_mb_emit_ldloc (mb, conv_arg);
5887 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5888 mono_mb_emit_stloc (mb, 0);
5890 /* Allocate and set dest */
5891 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5892 mono_mb_emit_byte (mb, CEE_CONV_I);
5893 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5894 mono_mb_emit_stloc (mb, 1);
5896 /* Update argument pointer */
5897 mono_mb_emit_ldarg (mb, argnum);
5898 mono_mb_emit_ldloc (mb, 1);
5899 mono_mb_emit_byte (mb, CEE_STIND_I);
5901 /* emit valuetype conversion code */
5902 emit_struct_conv (mb, klass, FALSE);
5904 mono_mb_patch_branch (mb, pos2);
5905 } else if (klass == mono_defaults.stringbuilder_class) {
5906 // FIXME: What to do here ?
5908 /* byval [Out] marshalling */
5910 /* FIXME: Handle null */
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5915 mono_mb_emit_stloc (mb, 0);
5918 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_stloc (mb, 1);
5921 /* emit valuetype conversion code */
5922 emit_struct_conv (mb, klass, FALSE);
5926 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5927 if (klass->delegate) {
5928 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5929 mono_mb_emit_stloc (mb, 3);
5933 /* The class can not have an automatic layout */
5934 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5935 mono_mb_emit_auto_layout_exception (mb, klass);
5939 mono_mb_emit_stloc (mb, 0);
5940 /* Check for null */
5941 mono_mb_emit_ldloc (mb, 0);
5942 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5943 mono_mb_emit_byte (mb, CEE_LDNULL);
5944 mono_mb_emit_stloc (mb, 3);
5945 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5947 mono_mb_patch_branch (mb, pos);
5950 mono_mb_emit_ldloc (mb, 0);
5951 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5952 mono_mb_emit_stloc (mb, 0);
5954 /* Allocate and set dest */
5955 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5956 mono_mb_emit_byte (mb, CEE_CONV_I);
5957 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5958 mono_mb_emit_byte (mb, CEE_DUP);
5959 mono_mb_emit_stloc (mb, 1);
5960 mono_mb_emit_stloc (mb, 3);
5962 emit_struct_conv (mb, klass, FALSE);
5964 mono_mb_patch_branch (mb, pos2);
5968 g_assert_not_reached ();
5979 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5980 MonoMarshalSpec *spec,
5981 int conv_arg, MonoType **conv_arg_type,
5982 MarshalAction action)
5984 MonoMethodBuilder *mb = m->mb;
5985 static MonoMethod *get_object_for_native_variant = NULL;
5986 static MonoMethod *get_native_variant_for_object = NULL;
5988 if (!get_object_for_native_variant)
5989 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5990 g_assert (get_object_for_native_variant);
5992 if (!get_native_variant_for_object)
5993 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5994 g_assert (get_native_variant_for_object);
5997 case MARSHAL_ACTION_CONV_IN: {
5998 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6001 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6003 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6005 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6008 mono_mb_emit_ldarg (mb, argnum);
6010 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6011 mono_mb_emit_ldloc_addr (mb, conv_arg);
6012 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6016 case MARSHAL_ACTION_CONV_OUT: {
6017 static MonoMethod *variant_clear = NULL;
6020 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6021 g_assert (variant_clear);
6024 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6025 mono_mb_emit_ldarg (mb, argnum);
6026 mono_mb_emit_ldloc_addr (mb, conv_arg);
6027 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6028 mono_mb_emit_byte (mb, CEE_STIND_REF);
6031 mono_mb_emit_ldloc_addr (mb, conv_arg);
6032 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6036 case MARSHAL_ACTION_PUSH:
6038 mono_mb_emit_ldloc_addr (mb, conv_arg);
6040 mono_mb_emit_ldloc (mb, conv_arg);
6043 case MARSHAL_ACTION_CONV_RESULT: {
6044 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6045 mono_mb_emit_exception_marshal_directive (mb, msg);
6049 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6050 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6053 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6055 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6057 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6061 mono_mb_emit_ldarg (mb, argnum);
6063 mono_mb_emit_ldarg_addr (mb, argnum);
6064 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6065 mono_mb_emit_stloc (mb, conv_arg);
6069 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6070 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 mono_mb_emit_ldarg (mb, argnum);
6073 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6078 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6079 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6080 mono_mb_emit_exception_marshal_directive (mb, msg);
6085 g_assert_not_reached ();
6091 #endif /* DISABLE_COM */
6092 #endif /* DISABLE_JIT */
6095 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6097 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6098 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6100 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6102 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6114 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6115 MonoMarshalSpec *spec,
6116 int conv_arg, MonoType **conv_arg_type,
6117 MarshalAction action)
6121 case MARSHAL_ACTION_CONV_IN:
6122 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6124 case MARSHAL_ACTION_MANAGED_CONV_IN:
6125 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6129 MonoMethodBuilder *mb = m->mb;
6130 MonoClass *klass = mono_class_from_mono_type (t);
6131 gboolean need_convert, need_free;
6132 MonoMarshalNative encoding;
6134 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6137 case MARSHAL_ACTION_CONV_IN:
6138 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6139 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6141 if (klass->element_class->blittable) {
6142 mono_mb_emit_ldarg (mb, argnum);
6144 mono_mb_emit_byte (mb, CEE_LDIND_I);
6145 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6146 mono_mb_emit_stloc (mb, conv_arg);
6149 guint32 label1, label2, label3;
6150 int index_var, src_var, dest_ptr, esize;
6151 MonoMarshalConv conv;
6152 gboolean is_string = FALSE;
6154 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6156 eklass = klass->element_class;
6158 if (eklass == mono_defaults.string_class) {
6160 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6162 else if (eklass == mono_defaults.stringbuilder_class) {
6164 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6167 conv = (MonoMarshalConv)-1;
6169 if (is_string && conv == -1) {
6170 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6171 mono_mb_emit_exception_marshal_directive (mb, msg);
6175 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6176 mono_mb_emit_ldarg (mb, argnum);
6178 mono_mb_emit_byte (mb, CEE_LDIND_I);
6179 mono_mb_emit_stloc (mb, src_var);
6182 mono_mb_emit_ldloc (mb, src_var);
6183 mono_mb_emit_stloc (mb, conv_arg);
6184 mono_mb_emit_ldloc (mb, src_var);
6185 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6188 esize = sizeof (gpointer);
6189 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6190 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6192 esize = mono_class_native_size (eklass, NULL);
6194 /* allocate space for the native struct and store the address */
6195 mono_mb_emit_icon (mb, esize);
6196 mono_mb_emit_ldloc (mb, src_var);
6197 mono_mb_emit_byte (mb, CEE_LDLEN);
6199 if (eklass == mono_defaults.string_class) {
6200 /* Make the array bigger for the terminating null */
6201 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6202 mono_mb_emit_byte (mb, CEE_ADD);
6204 mono_mb_emit_byte (mb, CEE_MUL);
6205 mono_mb_emit_byte (mb, CEE_PREFIX1);
6206 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6207 mono_mb_emit_stloc (mb, conv_arg);
6209 mono_mb_emit_ldloc (mb, conv_arg);
6210 mono_mb_emit_stloc (mb, dest_ptr);
6212 /* Emit marshalling loop */
6213 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6214 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6215 mono_mb_emit_stloc (mb, index_var);
6216 label2 = mono_mb_get_label (mb);
6217 mono_mb_emit_ldloc (mb, index_var);
6218 mono_mb_emit_ldloc (mb, src_var);
6219 mono_mb_emit_byte (mb, CEE_LDLEN);
6220 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6222 /* Emit marshalling code */
6225 mono_mb_emit_ldloc (mb, dest_ptr);
6226 mono_mb_emit_ldloc (mb, src_var);
6227 mono_mb_emit_ldloc (mb, index_var);
6228 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6229 mono_mb_emit_icall (mb, conv_to_icall (conv));
6230 mono_mb_emit_byte (mb, CEE_STIND_I);
6232 /* set the src_ptr */
6233 mono_mb_emit_ldloc (mb, src_var);
6234 mono_mb_emit_ldloc (mb, index_var);
6235 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6236 mono_mb_emit_stloc (mb, 0);
6239 mono_mb_emit_ldloc (mb, dest_ptr);
6240 mono_mb_emit_stloc (mb, 1);
6242 /* emit valuetype conversion code */
6243 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6246 mono_mb_emit_add_to_local (mb, index_var, 1);
6247 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6249 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6251 mono_mb_patch_branch (mb, label3);
6253 if (eklass == mono_defaults.string_class) {
6254 /* Null terminate */
6255 mono_mb_emit_ldloc (mb, dest_ptr);
6256 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6257 mono_mb_emit_byte (mb, CEE_STIND_REF);
6260 mono_mb_patch_branch (mb, label1);
6265 case MARSHAL_ACTION_CONV_OUT:
6266 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6267 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);
6268 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6271 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6272 int param_num = spec->data.array_data.param_num;
6273 MonoType *param_type;
6275 param_type = m->sig->params [param_num];
6277 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6278 char *msg = g_strdup ("Not implemented.");
6279 mono_mb_emit_exception_marshal_directive (mb, msg);
6284 mono_mb_emit_ldarg (mb, argnum);
6286 /* Create the managed array */
6287 mono_mb_emit_ldarg (mb, param_num);
6288 if (m->sig->params [param_num]->byref)
6289 // FIXME: Support other types
6290 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6291 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6292 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6293 /* Store into argument */
6294 mono_mb_emit_byte (mb, CEE_STIND_I);
6298 if (need_convert || need_free) {
6299 /* FIXME: Optimize blittable case */
6301 guint32 label1, label2, label3;
6302 int index_var, src_ptr, loc, esize;
6304 eklass = klass->element_class;
6305 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6306 esize = sizeof (gpointer);
6307 else if (eklass == mono_defaults.char_class)
6308 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6310 esize = mono_class_native_size (eklass, NULL);
6311 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6312 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6315 mono_mb_emit_ldarg (mb, argnum);
6317 mono_mb_emit_byte (mb, CEE_LDIND_I);
6318 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6320 mono_mb_emit_ldloc (mb, conv_arg);
6321 mono_mb_emit_stloc (mb, src_ptr);
6323 /* Emit marshalling loop */
6324 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6325 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6326 mono_mb_emit_stloc (mb, index_var);
6327 label2 = mono_mb_get_label (mb);
6328 mono_mb_emit_ldloc (mb, index_var);
6329 mono_mb_emit_ldarg (mb, argnum);
6331 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6332 mono_mb_emit_byte (mb, CEE_LDLEN);
6333 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6335 /* Emit marshalling code */
6337 if (eklass == mono_defaults.stringbuilder_class) {
6338 gboolean need_free2;
6339 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6341 g_assert (conv != -1);
6344 mono_mb_emit_ldarg (mb, argnum);
6346 mono_mb_emit_byte (mb, CEE_LDIND_I);
6347 mono_mb_emit_ldloc (mb, index_var);
6348 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6351 mono_mb_emit_ldloc (mb, src_ptr);
6352 mono_mb_emit_byte (mb, CEE_LDIND_I);
6354 mono_mb_emit_icall (mb, conv_to_icall (conv));
6358 mono_mb_emit_ldloc (mb, src_ptr);
6359 mono_mb_emit_byte (mb, CEE_LDIND_I);
6361 mono_mb_emit_icall (mb, mono_marshal_free);
6364 else if (eklass == mono_defaults.string_class) {
6367 mono_mb_emit_ldloc (mb, src_ptr);
6368 mono_mb_emit_byte (mb, CEE_LDIND_I);
6370 mono_mb_emit_icall (mb, mono_marshal_free);
6375 /* set the src_ptr */
6376 mono_mb_emit_ldloc (mb, src_ptr);
6377 mono_mb_emit_stloc (mb, 0);
6380 mono_mb_emit_ldarg (mb, argnum);
6382 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6383 mono_mb_emit_ldloc (mb, index_var);
6384 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6385 mono_mb_emit_stloc (mb, 1);
6387 /* emit valuetype conversion code */
6388 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6392 mono_mb_emit_ldloc (mb, src_ptr);
6393 mono_mb_emit_stloc (mb, loc);
6394 mono_mb_emit_ldloc (mb, loc);
6396 emit_struct_free (mb, eklass, loc);
6400 mono_mb_emit_add_to_local (mb, index_var, 1);
6401 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6403 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6405 mono_mb_patch_branch (mb, label1);
6406 mono_mb_patch_branch (mb, label3);
6409 if (klass->element_class->blittable) {
6410 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6412 mono_mb_emit_ldarg (mb, argnum);
6414 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6415 mono_mb_emit_ldloc (mb, conv_arg);
6416 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6421 case MARSHAL_ACTION_PUSH:
6423 mono_mb_emit_ldloc_addr (mb, conv_arg);
6425 mono_mb_emit_ldloc (mb, conv_arg);
6428 case MARSHAL_ACTION_CONV_RESULT:
6429 /* fixme: we need conversions here */
6430 mono_mb_emit_stloc (mb, 3);
6433 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6435 guint32 label1, label2, label3;
6436 int index_var, src_ptr, esize, param_num, num_elem;
6437 MonoMarshalConv conv;
6438 gboolean is_string = FALSE;
6440 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6441 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6444 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6445 mono_mb_emit_exception_marshal_directive (mb, msg);
6449 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6450 mono_mb_emit_exception_marshal_directive (mb, msg);
6453 if (spec->native != MONO_NATIVE_LPARRAY) {
6454 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6455 mono_mb_emit_exception_marshal_directive (mb, msg);
6459 /* FIXME: t is from the method which is wrapped, not the delegate type */
6460 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6462 param_num = spec->data.array_data.param_num;
6463 num_elem = spec->data.array_data.num_elem;
6464 if (spec->data.array_data.elem_mult == 0)
6465 /* param_num is not specified */
6468 if (param_num == -1) {
6469 if (num_elem <= 0) {
6470 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6471 mono_mb_emit_exception_marshal_directive (mb, msg);
6476 /* FIXME: Optimize blittable case */
6478 eklass = klass->element_class;
6479 if (eklass == mono_defaults.string_class) {
6481 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6483 else if (eklass == mono_defaults.stringbuilder_class) {
6485 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6488 conv = (MonoMarshalConv)-1;
6490 mono_marshal_load_type_info (eklass);
6493 esize = sizeof (gpointer);
6495 esize = mono_class_native_size (eklass, NULL);
6496 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6498 mono_mb_emit_byte (mb, CEE_LDNULL);
6499 mono_mb_emit_stloc (mb, conv_arg);
6501 /* Check param index */
6502 if (param_num != -1) {
6503 if (param_num >= m->sig->param_count) {
6504 char *msg = g_strdup ("Array size control parameter index is out of range.");
6505 mono_mb_emit_exception_marshal_directive (mb, msg);
6508 switch (m->sig->params [param_num]->type) {
6521 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6522 mono_mb_emit_exception_marshal_directive (mb, msg);
6529 mono_mb_emit_ldarg (mb, argnum);
6530 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6532 mono_mb_emit_ldarg (mb, argnum);
6533 mono_mb_emit_stloc (mb, src_ptr);
6535 /* Create managed array */
6537 * The LPArray marshalling spec says that sometimes param_num starts
6538 * from 1, sometimes it starts from 0. But MS seems to allways start
6542 if (param_num == -1) {
6543 mono_mb_emit_icon (mb, num_elem);
6545 mono_mb_emit_ldarg (mb, param_num);
6547 mono_mb_emit_icon (mb, num_elem);
6548 mono_mb_emit_byte (mb, CEE_ADD);
6550 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6553 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6554 mono_mb_emit_stloc (mb, conv_arg);
6556 if (eklass->blittable) {
6557 mono_mb_emit_ldloc (mb, conv_arg);
6558 mono_mb_emit_byte (mb, CEE_CONV_I);
6559 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6560 mono_mb_emit_byte (mb, CEE_ADD);
6561 mono_mb_emit_ldarg (mb, argnum);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_byte (mb, CEE_LDLEN);
6564 mono_mb_emit_icon (mb, esize);
6565 mono_mb_emit_byte (mb, CEE_MUL);
6566 mono_mb_emit_byte (mb, CEE_PREFIX1);
6567 mono_mb_emit_byte (mb, CEE_CPBLK);
6571 /* Emit marshalling loop */
6572 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6573 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6574 mono_mb_emit_stloc (mb, index_var);
6575 label2 = mono_mb_get_label (mb);
6576 mono_mb_emit_ldloc (mb, index_var);
6577 mono_mb_emit_ldloc (mb, conv_arg);
6578 mono_mb_emit_byte (mb, CEE_LDLEN);
6579 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6581 /* Emit marshalling code */
6583 g_assert (conv != -1);
6585 mono_mb_emit_ldloc (mb, conv_arg);
6586 mono_mb_emit_ldloc (mb, index_var);
6588 mono_mb_emit_ldloc (mb, src_ptr);
6589 mono_mb_emit_byte (mb, CEE_LDIND_I);
6591 mono_mb_emit_icall (mb, conv_to_icall (conv));
6592 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6595 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6596 mono_mb_emit_exception_marshal_directive (mb, msg);
6600 mono_mb_emit_add_to_local (mb, index_var, 1);
6601 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6603 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6605 mono_mb_patch_branch (mb, label1);
6606 mono_mb_patch_branch (mb, label3);
6610 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6612 guint32 label1, label2, label3;
6613 int index_var, dest_ptr, esize, param_num, num_elem;
6614 MonoMarshalConv conv;
6615 gboolean is_string = FALSE;
6618 /* Already handled in CONV_IN */
6621 /* These are already checked in CONV_IN */
6622 g_assert (!t->byref);
6623 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6624 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6626 param_num = spec->data.array_data.param_num;
6627 num_elem = spec->data.array_data.num_elem;
6629 if (spec->data.array_data.elem_mult == 0)
6630 /* param_num is not specified */
6633 if (param_num == -1) {
6634 if (num_elem <= 0) {
6635 g_assert_not_reached ();
6639 /* FIXME: Optimize blittable case */
6641 eklass = klass->element_class;
6642 if (eklass == mono_defaults.string_class) {
6644 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6646 else if (eklass == mono_defaults.stringbuilder_class) {
6648 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6651 conv = (MonoMarshalConv)-1;
6653 mono_marshal_load_type_info (eklass);
6656 esize = sizeof (gpointer);
6658 esize = mono_class_native_size (eklass, NULL);
6660 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6663 mono_mb_emit_ldloc (mb, conv_arg);
6664 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6666 mono_mb_emit_ldarg (mb, argnum);
6667 mono_mb_emit_stloc (mb, dest_ptr);
6669 if (eklass->blittable) {
6671 mono_mb_emit_ldarg (mb, argnum);
6673 mono_mb_emit_ldloc (mb, conv_arg);
6674 mono_mb_emit_byte (mb, CEE_CONV_I);
6675 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6676 mono_mb_emit_byte (mb, CEE_ADD);
6678 mono_mb_emit_ldloc (mb, conv_arg);
6679 mono_mb_emit_byte (mb, CEE_LDLEN);
6680 mono_mb_emit_icon (mb, esize);
6681 mono_mb_emit_byte (mb, CEE_MUL);
6682 mono_mb_emit_byte (mb, CEE_PREFIX1);
6683 mono_mb_emit_byte (mb, CEE_CPBLK);
6687 /* Emit marshalling loop */
6688 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6689 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6690 mono_mb_emit_stloc (mb, index_var);
6691 label2 = mono_mb_get_label (mb);
6692 mono_mb_emit_ldloc (mb, index_var);
6693 mono_mb_emit_ldloc (mb, conv_arg);
6694 mono_mb_emit_byte (mb, CEE_LDLEN);
6695 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6697 /* Emit marshalling code */
6699 g_assert (conv != -1);
6702 mono_mb_emit_ldloc (mb, dest_ptr);
6705 mono_mb_emit_ldloc (mb, conv_arg);
6706 mono_mb_emit_ldloc (mb, index_var);
6708 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6710 mono_mb_emit_icall (mb, conv_to_icall (conv));
6711 mono_mb_emit_byte (mb, CEE_STIND_I);
6714 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6715 mono_mb_emit_exception_marshal_directive (mb, msg);
6719 mono_mb_emit_add_to_local (mb, index_var, 1);
6720 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6722 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6724 mono_mb_patch_branch (mb, label1);
6725 mono_mb_patch_branch (mb, label3);
6729 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6731 guint32 label1, label2, label3;
6732 int index_var, src, dest, esize;
6733 MonoMarshalConv conv = (MonoMarshalConv)-1;
6734 gboolean is_string = FALSE;
6736 g_assert (!t->byref);
6738 eklass = klass->element_class;
6740 mono_marshal_load_type_info (eklass);
6742 if (eklass == mono_defaults.string_class) {
6744 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6747 g_assert_not_reached ();
6751 esize = sizeof (gpointer);
6752 else if (eklass == mono_defaults.char_class)
6753 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6755 esize = mono_class_native_size (eklass, NULL);
6757 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6758 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6760 mono_mb_emit_stloc (mb, src);
6761 mono_mb_emit_ldloc (mb, src);
6762 mono_mb_emit_stloc (mb, 3);
6764 /* Check for null */
6765 mono_mb_emit_ldloc (mb, src);
6766 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6768 /* Allocate native array */
6769 mono_mb_emit_icon (mb, esize);
6770 mono_mb_emit_ldloc (mb, src);
6771 mono_mb_emit_byte (mb, CEE_LDLEN);
6773 if (eklass == mono_defaults.string_class) {
6774 /* Make the array bigger for the terminating null */
6775 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6776 mono_mb_emit_byte (mb, CEE_ADD);
6778 mono_mb_emit_byte (mb, CEE_MUL);
6779 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6780 mono_mb_emit_stloc (mb, dest);
6781 mono_mb_emit_ldloc (mb, dest);
6782 mono_mb_emit_stloc (mb, 3);
6784 /* Emit marshalling loop */
6785 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6786 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6787 mono_mb_emit_stloc (mb, index_var);
6788 label2 = mono_mb_get_label (mb);
6789 mono_mb_emit_ldloc (mb, index_var);
6790 mono_mb_emit_ldloc (mb, src);
6791 mono_mb_emit_byte (mb, CEE_LDLEN);
6792 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6794 /* Emit marshalling code */
6796 g_assert (conv != -1);
6799 mono_mb_emit_ldloc (mb, dest);
6802 mono_mb_emit_ldloc (mb, src);
6803 mono_mb_emit_ldloc (mb, index_var);
6805 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6807 mono_mb_emit_icall (mb, conv_to_icall (conv));
6808 mono_mb_emit_byte (mb, CEE_STIND_I);
6811 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6812 mono_mb_emit_exception_marshal_directive (mb, msg);
6816 mono_mb_emit_add_to_local (mb, index_var, 1);
6817 mono_mb_emit_add_to_local (mb, dest, esize);
6819 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6821 mono_mb_patch_branch (mb, label3);
6822 mono_mb_patch_branch (mb, label1);
6826 g_assert_not_reached ();
6833 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6836 return &mono_defaults.int32_class->byval_arg;
6838 switch (spec->native) {
6839 case MONO_NATIVE_I1:
6840 case MONO_NATIVE_U1:
6841 return &mono_defaults.byte_class->byval_arg;
6842 case MONO_NATIVE_VARIANTBOOL:
6843 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6844 return &mono_defaults.int16_class->byval_arg;
6845 case MONO_NATIVE_BOOLEAN:
6846 return &mono_defaults.int32_class->byval_arg;
6848 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6849 return &mono_defaults.int32_class->byval_arg;
6855 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6857 MonoClass* conv_arg_class = mono_defaults.int32_class;
6859 switch (spec->native) {
6860 case MONO_NATIVE_I1:
6861 case MONO_NATIVE_U1:
6862 conv_arg_class = mono_defaults.byte_class;
6863 if (ldop) *ldop = CEE_LDIND_I1;
6865 case MONO_NATIVE_VARIANTBOOL:
6866 conv_arg_class = mono_defaults.int16_class;
6867 if (ldop) *ldop = CEE_LDIND_I2;
6869 case MONO_NATIVE_BOOLEAN:
6872 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6875 return conv_arg_class;
6879 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6880 MonoMarshalSpec *spec,
6881 int conv_arg, MonoType **conv_arg_type,
6882 MarshalAction action)
6886 case MARSHAL_ACTION_CONV_IN:
6888 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6890 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6893 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6894 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6896 *conv_arg_type = &conv_arg_class->this_arg;
6898 *conv_arg_type = &conv_arg_class->byval_arg;
6904 MonoMethodBuilder *mb = m->mb;
6907 case MARSHAL_ACTION_CONV_IN: {
6908 MonoType *local_type;
6910 guint8 ldc_op = CEE_LDC_I4_1;
6912 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6914 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6916 *conv_arg_type = local_type;
6917 conv_arg = mono_mb_add_local (mb, local_type);
6919 mono_mb_emit_ldarg (mb, argnum);
6921 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6922 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6923 mono_mb_emit_byte (mb, ldc_op);
6924 mono_mb_emit_stloc (mb, conv_arg);
6925 mono_mb_patch_branch (mb, label_false);
6930 case MARSHAL_ACTION_CONV_OUT:
6932 int label_false, label_end;
6936 mono_mb_emit_ldarg (mb, argnum);
6937 mono_mb_emit_ldloc (mb, conv_arg);
6939 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6940 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6942 label_end = mono_mb_emit_branch (mb, CEE_BR);
6943 mono_mb_patch_branch (mb, label_false);
6944 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6945 mono_mb_patch_branch (mb, label_end);
6947 mono_mb_emit_byte (mb, CEE_STIND_I1);
6951 case MARSHAL_ACTION_PUSH:
6953 mono_mb_emit_ldloc_addr (mb, conv_arg);
6955 mono_mb_emit_ldloc (mb, conv_arg);
6957 mono_mb_emit_ldarg (mb, argnum);
6960 case MARSHAL_ACTION_CONV_RESULT:
6961 /* maybe we need to make sure that it fits within 8 bits */
6962 mono_mb_emit_stloc (mb, 3);
6965 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6966 MonoClass* conv_arg_class = mono_defaults.int32_class;
6967 guint8 ldop = CEE_LDIND_I4;
6968 int label_null, label_false;
6970 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6971 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6974 *conv_arg_type = &conv_arg_class->this_arg;
6976 *conv_arg_type = &conv_arg_class->byval_arg;
6979 mono_mb_emit_ldarg (mb, argnum);
6983 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6984 mono_mb_emit_ldarg (mb, argnum);
6985 mono_mb_emit_byte (mb, ldop);
6989 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6990 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6991 mono_mb_emit_stloc (mb, conv_arg);
6992 mono_mb_patch_branch (mb, label_false);
6995 mono_mb_patch_branch (mb, label_null);
6999 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7000 guint8 stop = CEE_STIND_I4;
7001 guint8 ldc_op = CEE_LDC_I4_1;
7002 int label_null,label_false, label_end;;
7007 switch (spec->native) {
7008 case MONO_NATIVE_I1:
7009 case MONO_NATIVE_U1:
7010 stop = CEE_STIND_I1;
7012 case MONO_NATIVE_VARIANTBOOL:
7013 stop = CEE_STIND_I2;
7014 ldc_op = CEE_LDC_I4_M1;
7022 mono_mb_emit_ldarg (mb, argnum);
7023 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7025 mono_mb_emit_ldarg (mb, argnum);
7026 mono_mb_emit_ldloc (mb, conv_arg);
7028 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7029 mono_mb_emit_byte (mb, ldc_op);
7030 label_end = mono_mb_emit_branch (mb, CEE_BR);
7032 mono_mb_patch_branch (mb, label_false);
7033 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7034 mono_mb_patch_branch (mb, label_end);
7036 mono_mb_emit_byte (mb, stop);
7037 mono_mb_patch_branch (mb, label_null);
7042 g_assert_not_reached ();
7049 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7050 MonoMarshalSpec *spec, int conv_arg,
7051 MonoType **conv_arg_type, MarshalAction action)
7054 MonoMethodBuilder *mb = m->mb;
7057 case MARSHAL_ACTION_CONV_IN:
7058 /* MS seems to allow this in some cases, ie. bxc #158 */
7060 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7061 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7062 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7067 case MARSHAL_ACTION_PUSH:
7068 mono_mb_emit_ldarg (mb, argnum);
7071 case MARSHAL_ACTION_CONV_RESULT:
7072 /* no conversions necessary */
7073 mono_mb_emit_stloc (mb, 3);
7084 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7085 MonoMarshalSpec *spec, int conv_arg,
7086 MonoType **conv_arg_type, MarshalAction action)
7089 MonoMethodBuilder *mb = m->mb;
7092 case MARSHAL_ACTION_PUSH:
7093 /* fixme: dont know how to marshal that. We cant simply
7094 * convert it to a one byte UTF8 character, because an
7095 * unicode character may need more that one byte in UTF8 */
7096 mono_mb_emit_ldarg (mb, argnum);
7099 case MARSHAL_ACTION_CONV_RESULT:
7100 /* fixme: we need conversions here */
7101 mono_mb_emit_stloc (mb, 3);
7112 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7113 MonoMarshalSpec *spec, int conv_arg,
7114 MonoType **conv_arg_type, MarshalAction action)
7117 MonoMethodBuilder *mb = m->mb;
7120 case MARSHAL_ACTION_PUSH:
7121 mono_mb_emit_ldarg (mb, argnum);
7124 case MARSHAL_ACTION_CONV_RESULT:
7125 /* no conversions necessary */
7126 mono_mb_emit_stloc (mb, 3);
7137 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7138 MonoMarshalSpec *spec, int conv_arg,
7139 MonoType **conv_arg_type, MarshalAction action)
7141 /* Ensure that we have marshalling info for this param */
7142 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7144 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7145 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7147 if (spec && spec->native == MONO_NATIVE_ASANY)
7148 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7151 case MONO_TYPE_VALUETYPE:
7152 if (t->data.klass == mono_defaults.handleref_class)
7153 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7155 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7156 case MONO_TYPE_STRING:
7157 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7158 case MONO_TYPE_CLASS:
7159 case MONO_TYPE_OBJECT:
7161 if (spec && spec->native == MONO_NATIVE_STRUCT)
7162 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7164 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7165 spec->native == MONO_NATIVE_IDISPATCH ||
7166 spec->native == MONO_NATIVE_INTERFACE))
7167 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7168 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7169 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7170 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7171 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7174 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7175 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7176 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7178 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7179 case MONO_TYPE_ARRAY:
7180 case MONO_TYPE_SZARRAY:
7181 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7182 case MONO_TYPE_BOOLEAN:
7183 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7185 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7186 case MONO_TYPE_CHAR:
7187 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7200 case MONO_TYPE_FNPTR:
7201 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7202 case MONO_TYPE_GENERICINST:
7203 if (mono_type_generic_inst_is_valuetype (t))
7204 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7206 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7214 * mono_marshal_emit_native_wrapper:
7215 * @image: the image to use for looking up custom marshallers
7216 * @sig: The signature of the native function
7217 * @piinfo: Marshalling information
7218 * @mspecs: Marshalling information
7219 * @aot: whenever the created method will be compiled by the AOT compiler
7220 * @method: if non-NULL, the pinvoke method to call
7221 * @check_exceptions: Whenever to check for pending exceptions after the native call
7222 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7224 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7227 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)
7229 EmitMarshalContext m;
7230 MonoMethodSignature *csig;
7232 MonoExceptionClause *clause;
7233 int i, argnum, *tmp_locals;
7234 int type, param_shift = 0;
7235 static MonoMethodSignature *get_last_error_sig = NULL;
7236 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7239 memset (&m, 0, sizeof (m));
7244 /* we copy the signature, so that we can set pinvoke to 0 */
7246 /* The function address is passed as the first argument */
7247 g_assert (!sig->hasthis);
7250 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7258 /* we allocate local for use with emit_struct_conv() */
7259 /* allocate local 0 (pointer) src_ptr */
7260 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7261 /* allocate local 1 (pointer) dst_ptr */
7262 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7263 /* allocate local 2 (boolean) delete_old */
7264 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7266 /* delete_old = FALSE */
7267 mono_mb_emit_icon (mb, 0);
7268 mono_mb_emit_stloc (mb, 2);
7270 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7271 /* allocate local 3 to store the return value */
7272 mono_mb_add_local (mb, sig->ret);
7275 if (mono_threads_is_coop_enabled ()) {
7276 /* local 4, dummy local used to get a stack address for suspend funcs */
7277 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7278 /* local 5, the local to be used when calling the suspend funcs */
7279 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7280 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7282 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7283 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7286 if (MONO_TYPE_ISSTRUCT (sig->ret))
7287 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7289 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7290 /* Return type custom marshaling */
7292 * Since we can't determine the return type of the unmanaged function,
7293 * we assume it returns a pointer, and pass that pointer to
7294 * MarshalNativeToManaged.
7296 csig->ret = &mono_defaults.int_class->byval_arg;
7299 /* we first do all conversions */
7300 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7301 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7303 for (i = 0; i < sig->param_count; i ++) {
7304 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7307 // In coop mode need to register blocking state during native call
7308 if (mono_threads_is_coop_enabled ()) {
7309 // Perform an extra, early lookup of the function address, so any exceptions
7310 // potentially resulting from the lookup occur before entering blocking mode.
7311 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7312 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7313 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7314 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7317 clause->try_offset = mono_mb_get_label (mb);
7319 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7320 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7321 mono_mb_emit_stloc (mb, coop_gc_var);
7324 /* push all arguments */
7327 mono_mb_emit_byte (mb, CEE_LDARG_0);
7329 for (i = 0; i < sig->param_count; i++) {
7330 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7333 /* call the native method */
7335 mono_mb_emit_byte (mb, CEE_LDARG_0);
7336 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7337 mono_mb_emit_byte (mb, CEE_LDIND_I);
7338 mono_mb_emit_calli (mb, csig);
7339 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7341 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7343 g_assert_not_reached ();
7348 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7349 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7350 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7351 mono_mb_emit_calli (mb, csig);
7353 mono_mb_emit_native_call (mb, csig, func);
7357 /* Set LastError if needed */
7358 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7359 if (!get_last_error_sig) {
7360 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7361 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7362 get_last_error_sig->pinvoke = 1;
7367 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7368 * clobber its value.
7370 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7371 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7373 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7377 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7378 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7379 mono_class_init (klass);
7380 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7381 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7382 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7383 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7384 mono_mb_emit_stloc (mb, m.vtaddr_var);
7388 /* Unblock before converting the result, since that can involve calls into the runtime */
7389 if (mono_threads_is_coop_enabled ()) {
7390 mono_mb_emit_ldloc (mb, coop_gc_var);
7391 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7392 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7393 mono_mb_emit_icon (mb, 1);
7394 mono_mb_emit_stloc (mb, coop_unblocked_var);
7397 /* convert the result */
7398 if (!sig->ret->byref) {
7399 MonoMarshalSpec *spec = mspecs [0];
7400 type = sig->ret->type;
7402 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7403 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7407 case MONO_TYPE_VOID:
7409 case MONO_TYPE_VALUETYPE:
7410 klass = sig->ret->data.klass;
7411 if (klass->enumtype) {
7412 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7415 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7429 case MONO_TYPE_FNPTR:
7430 case MONO_TYPE_STRING:
7431 case MONO_TYPE_CLASS:
7432 case MONO_TYPE_OBJECT:
7433 case MONO_TYPE_BOOLEAN:
7434 case MONO_TYPE_ARRAY:
7435 case MONO_TYPE_SZARRAY:
7436 case MONO_TYPE_CHAR:
7438 case MONO_TYPE_GENERICINST:
7439 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7441 case MONO_TYPE_TYPEDBYREF:
7443 g_warning ("return type 0x%02x unknown", sig->ret->type);
7444 g_assert_not_reached ();
7448 mono_mb_emit_stloc (mb, 3);
7451 if (mono_threads_is_coop_enabled ()) {
7454 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7456 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7457 clause->handler_offset = mono_mb_get_label (mb);
7459 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7460 mono_mb_emit_icon (mb, 1);
7461 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7463 mono_mb_emit_ldloc (mb, coop_gc_var);
7464 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7465 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7467 mono_mb_patch_branch (mb, pos);
7469 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7471 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7473 mono_mb_patch_branch (mb, leave_pos);
7477 * Need to call this after converting the result since MONO_VTADDR needs
7478 * to be adjacent to the call instruction.
7480 if (check_exceptions)
7481 emit_thread_interrupt_checkpoint (mb);
7483 /* we need to convert byref arguments back and free string arrays */
7484 for (i = 0; i < sig->param_count; i++) {
7485 MonoType *t = sig->params [i];
7486 MonoMarshalSpec *spec = mspecs [i + 1];
7488 argnum = i + param_shift;
7490 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7491 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7496 case MONO_TYPE_STRING:
7497 case MONO_TYPE_VALUETYPE:
7498 case MONO_TYPE_CLASS:
7499 case MONO_TYPE_OBJECT:
7500 case MONO_TYPE_SZARRAY:
7501 case MONO_TYPE_BOOLEAN:
7502 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7509 if (!MONO_TYPE_IS_VOID(sig->ret))
7510 mono_mb_emit_ldloc (mb, 3);
7512 mono_mb_emit_byte (mb, CEE_RET);
7514 if (mono_threads_is_coop_enabled ()) {
7515 mono_mb_set_clauses (mb, 1, clause);
7518 #endif /* DISABLE_JIT */
7521 * mono_marshal_get_native_wrapper:
7522 * @method: The MonoMethod to wrap.
7523 * @check_exceptions: Whenever to check for pending exceptions
7525 * generates IL code for the pinvoke wrapper (the generated method
7526 * calls the unmanaged code in piinfo->addr)
7527 * The wrapper info for the wrapper is a WrapperInfo structure.
7530 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7532 MonoMethodSignature *sig, *csig;
7533 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7534 MonoMethodBuilder *mb;
7535 MonoMarshalSpec **mspecs;
7538 gboolean pinvoke = FALSE;
7541 const char *exc_class = "MissingMethodException";
7542 const char *exc_arg = NULL;
7545 g_assert (method != NULL);
7546 g_assert (mono_method_signature (method)->pinvoke);
7548 GHashTable **cache_ptr;
7551 if (check_exceptions)
7552 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7554 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7556 if (check_exceptions)
7557 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7559 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7562 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7564 if ((res = mono_marshal_find_in_cache (cache, method)))
7567 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7568 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7572 return mono_cominterop_get_native_wrapper (method);
7574 g_assert_not_reached ();
7578 sig = mono_method_signature (method);
7580 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7581 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7584 if (!piinfo->addr) {
7586 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7587 exc_arg = "Method contains unsupported native code";
7589 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7591 piinfo->addr = mono_lookup_internal_call (method);
7595 /* hack - redirect certain string constructors to CreateString */
7596 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7597 g_assert (!pinvoke);
7598 g_assert (method->string_ctor);
7599 g_assert (sig->hasthis);
7601 /* CreateString returns a value */
7602 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7603 csig->ret = &mono_defaults.string_class->byval_arg;
7607 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7608 if (!strcmp ("CreateString", res->name) &&
7609 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7612 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7613 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7615 /* create a wrapper to preserve .ctor in stack trace */
7616 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7619 mono_mb_emit_byte (mb, CEE_LDARG_0);
7620 for (i = 1; i <= csig->param_count; i++)
7621 mono_mb_emit_ldarg (mb, i);
7622 mono_mb_emit_managed_call (mb, res, NULL);
7623 mono_mb_emit_byte (mb, CEE_RET);
7626 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7627 info->d.string_ctor.method = method;
7629 /* use native_wrapper_cache because internal calls are looked up there */
7630 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7631 csig->param_count + 1, info, NULL);
7638 /* exception will be thrown */
7639 piinfo->addr = NULL;
7640 g_warning ("cannot find CreateString for .ctor");
7643 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7645 mb->method->save_lmf = 1;
7648 * In AOT mode and embedding scenarios, it is possible that the icall is not
7649 * registered in the runtime doing the AOT compilation.
7651 if (!piinfo->addr && !aot) {
7653 mono_mb_emit_exception (mb, exc_class, exc_arg);
7655 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7656 info->d.managed_to_native.method = method;
7658 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7660 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7661 csig->param_count + 16, info, NULL);
7667 /* internal calls: we simply push all arguments and call the method (no conversions) */
7668 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7670 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7672 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7674 /* hack - string constructors returns a value */
7675 if (method->string_ctor)
7676 csig->ret = &mono_defaults.string_class->byval_arg;
7683 * Add a null check since public icalls can be called with 'call' which
7684 * does no such check.
7686 mono_mb_emit_byte (mb, CEE_LDARG_0);
7687 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7688 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7689 mono_mb_patch_branch (mb, pos);
7691 mono_mb_emit_byte (mb, CEE_LDARG_0);
7694 for (i = 0; i < sig->param_count; i++)
7695 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7698 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7699 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7700 mono_mb_emit_calli (mb, csig);
7702 g_assert (piinfo->addr);
7703 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7705 if (check_exceptions)
7706 emit_thread_interrupt_checkpoint (mb);
7707 mono_mb_emit_byte (mb, CEE_RET);
7709 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7710 info->d.managed_to_native.method = method;
7712 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7714 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7723 g_assert (piinfo->addr);
7726 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7727 mono_method_get_marshal_info (method, mspecs);
7729 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7731 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7732 info->d.managed_to_native.method = method;
7734 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7736 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7741 for (i = sig->param_count; i >= 0; i--)
7743 mono_metadata_free_marshal_spec (mspecs [i]);
7747 /* mono_method_print_code (res); */
7753 * mono_marshal_get_native_func_wrapper:
7754 * @image: The image to use for memory allocation and for looking up custom marshallers.
7755 * @sig: The signature of the function
7756 * @func: The native function to wrap
7758 * Returns a wrapper method around native functions, similar to the pinvoke
7762 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7763 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7765 MonoMethodSignature *csig;
7767 SignaturePointerPair key, *new_key;
7768 MonoMethodBuilder *mb;
7777 // Generic types are not safe to place in MonoImage caches.
7778 g_assert (!sig->is_inflated);
7780 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7781 if ((res = mono_marshal_find_in_cache (cache, &key)))
7784 name = g_strdup_printf ("wrapper_native_%p", func);
7785 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7786 mb->method->save_lmf = 1;
7789 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7792 csig = mono_metadata_signature_dup_full (image, sig);
7795 new_key = g_new (SignaturePointerPair,1);
7796 new_key->sig = csig;
7797 new_key->pointer = func;
7799 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7805 mono_marshal_set_wrapper_info (res, NULL);
7811 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7815 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7817 MonoMethodSignature *sig, *csig;
7818 MonoMethodBuilder *mb;
7823 MonoMethodPInvoke mpiinfo;
7824 MonoMethodPInvoke *piinfo = &mpiinfo;
7825 MonoMarshalSpec **mspecs;
7826 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7827 MonoImage *image = invoke->klass->image;
7830 // FIXME: include UnmanagedFunctionPointerAttribute info
7833 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7835 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7837 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7840 memset (&mpiinfo, 0, sizeof (mpiinfo));
7841 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7843 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7844 mono_method_get_marshal_info (invoke, mspecs);
7845 /* Freed below so don't alloc from mempool */
7846 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7849 name = g_strdup_printf ("wrapper_aot_native");
7850 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7851 mb->method->save_lmf = 1;
7854 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7857 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7858 info->d.managed_to_native.method = invoke;
7860 g_assert (!sig->hasthis);
7861 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7863 res = mono_mb_create_and_cache_full (cache, invoke,
7864 mb, csig, csig->param_count + 16,
7868 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7870 mono_metadata_free_marshal_spec (mspecs [i]);
7878 * mono_marshal_emit_managed_wrapper:
7880 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7881 * the delegate which wraps the managed method to be called. For closed delegates,
7882 * it could have fewer parameters than the method it wraps.
7883 * THIS_LOC is the memory location where the target of the delegate is stored.
7886 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7889 MonoMethodSignature *sig, *csig;
7895 /* we first do all conversions */
7896 for (i = 0; i < sig->param_count; i ++) {
7897 MonoType *t = sig->params [i];
7900 case MONO_TYPE_OBJECT:
7901 case MONO_TYPE_CLASS:
7902 case MONO_TYPE_VALUETYPE:
7903 case MONO_TYPE_ARRAY:
7904 case MONO_TYPE_SZARRAY:
7905 case MONO_TYPE_STRING:
7906 case MONO_TYPE_BOOLEAN:
7907 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7911 if (!sig->ret->byref) {
7912 switch (sig->ret->type) {
7913 case MONO_TYPE_STRING:
7914 csig->ret = &mono_defaults.int_class->byval_arg;
7921 MonoMethodSignature *sig, *csig;
7922 MonoExceptionClause *clause;
7925 gboolean closed = FALSE;
7930 /* allocate local 0 (pointer) src_ptr */
7931 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7932 /* allocate local 1 (pointer) dst_ptr */
7933 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7934 /* allocate local 2 (boolean) delete_old */
7935 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7937 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7938 /* Closed delegate */
7939 g_assert (sig->param_count == invoke_sig->param_count + 1);
7941 /* Use a new signature without the first argument */
7942 sig = mono_metadata_signature_dup (sig);
7943 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7944 sig->param_count --;
7947 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7948 /* allocate local 3 to store the return value */
7949 mono_mb_add_local (mb, sig->ret);
7952 if (MONO_TYPE_ISSTRUCT (sig->ret))
7953 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7957 * mono_jit_attach ();
7961 * ret = method (...);
7963 * mono_jit_detach ();
7969 if (mono_threads_is_coop_enabled ()) {
7970 clause = g_new0 (MonoExceptionClause, 1);
7971 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7974 mono_mb_emit_icon (mb, 0);
7975 mono_mb_emit_stloc (mb, 2);
7977 if (mono_threads_is_coop_enabled ()) {
7979 clause->try_offset = mono_mb_get_label (mb);
7983 * Might need to attach the thread to the JIT or change the
7984 * domain for the callback.
7986 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7988 * mono_jit_attach ();
7990 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7991 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7993 /* <interrupt check> */
7994 emit_thread_interrupt_checkpoint (mb);
7996 /* we first do all conversions */
7997 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7998 for (i = 0; i < sig->param_count; i ++) {
7999 MonoType *t = sig->params [i];
8002 case MONO_TYPE_OBJECT:
8003 case MONO_TYPE_CLASS:
8004 case MONO_TYPE_VALUETYPE:
8005 case MONO_TYPE_ARRAY:
8006 case MONO_TYPE_SZARRAY:
8007 case MONO_TYPE_STRING:
8008 case MONO_TYPE_BOOLEAN:
8009 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8019 if (target_handle) {
8020 mono_mb_emit_icon (mb, (gint32)target_handle);
8021 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8024 g_assert_not_reached ();
8026 } else if (closed) {
8027 mono_mb_emit_icon (mb, (gint32)target_handle);
8028 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8031 for (i = 0; i < sig->param_count; i++) {
8032 MonoType *t = sig->params [i];
8034 if (tmp_locals [i]) {
8036 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8038 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8041 mono_mb_emit_ldarg (mb, i);
8044 /* ret = method (...) */
8045 mono_mb_emit_managed_call (mb, method, NULL);
8047 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8048 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8049 mono_class_init (klass);
8050 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8051 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8052 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8053 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8054 mono_mb_emit_stloc (mb, m->vtaddr_var);
8058 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8059 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8060 } else if (!sig->ret->byref) {
8061 switch (sig->ret->type) {
8062 case MONO_TYPE_VOID:
8064 case MONO_TYPE_BOOLEAN:
8067 case MONO_TYPE_CHAR:
8079 case MONO_TYPE_OBJECT:
8080 mono_mb_emit_stloc (mb, 3);
8082 case MONO_TYPE_STRING:
8083 csig->ret = &mono_defaults.int_class->byval_arg;
8084 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8086 case MONO_TYPE_VALUETYPE:
8087 case MONO_TYPE_CLASS:
8088 case MONO_TYPE_SZARRAY:
8089 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8092 g_warning ("return type 0x%02x unknown", sig->ret->type);
8093 g_assert_not_reached ();
8096 mono_mb_emit_stloc (mb, 3);
8099 /* Convert byref arguments back */
8100 for (i = 0; i < sig->param_count; i ++) {
8101 MonoType *t = sig->params [i];
8102 MonoMarshalSpec *spec = mspecs [i + 1];
8104 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8105 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8107 else if (t->byref) {
8109 case MONO_TYPE_CLASS:
8110 case MONO_TYPE_VALUETYPE:
8111 case MONO_TYPE_OBJECT:
8112 case MONO_TYPE_STRING:
8113 case MONO_TYPE_BOOLEAN:
8114 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8120 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8121 /* The [Out] information is encoded in the delegate signature */
8123 case MONO_TYPE_SZARRAY:
8124 case MONO_TYPE_CLASS:
8125 case MONO_TYPE_VALUETYPE:
8126 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8129 g_assert_not_reached ();
8134 if (mono_threads_is_coop_enabled ()) {
8135 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8138 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8139 clause->handler_offset = mono_mb_get_label (mb);
8143 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8145 * mono_jit_detach ();
8147 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8148 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8150 if (mono_threads_is_coop_enabled ()) {
8151 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8153 /* } [endfinally] */
8154 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8156 mono_mb_patch_branch (mb, leave_pos);
8160 if (m->retobj_var) {
8161 mono_mb_emit_ldloc (mb, m->retobj_var);
8162 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8163 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8166 if (!MONO_TYPE_IS_VOID(sig->ret))
8167 mono_mb_emit_ldloc (mb, 3);
8168 mono_mb_emit_byte (mb, CEE_RET);
8171 if (mono_threads_is_coop_enabled ()) {
8172 mono_mb_set_clauses (mb, 1, clause);
8181 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8183 MonoMethodSignature *sig;
8188 * Under windows, delegates passed to native code must use the STDCALL
8189 * calling convention.
8191 csig->call_convention = MONO_CALL_STDCALL;
8194 sig = mono_method_signature (method);
8196 /* Change default calling convention if needed */
8197 /* Why is this a modopt ? */
8198 if (sig->ret && sig->ret->num_mods) {
8199 for (i = 0; i < sig->ret->num_mods; ++i) {
8201 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8202 g_assert (mono_error_ok (&error));
8203 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8204 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8205 csig->call_convention = MONO_CALL_C;
8206 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8207 csig->call_convention = MONO_CALL_STDCALL;
8208 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8209 csig->call_convention = MONO_CALL_FASTCALL;
8210 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8211 csig->call_convention = MONO_CALL_THISCALL;
8218 * generates IL code to call managed methods from unmanaged code
8219 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8222 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8225 MonoMethodSignature *sig, *csig, *invoke_sig;
8226 MonoMethodBuilder *mb;
8227 MonoMethod *res, *invoke;
8228 MonoMarshalSpec **mspecs;
8229 MonoMethodPInvoke piinfo;
8232 EmitMarshalContext m;
8234 g_assert (method != NULL);
8235 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8238 * FIXME: Should cache the method+delegate type pair, since the same method
8239 * could be called with different delegates, thus different marshalling
8242 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8244 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8247 invoke = mono_get_delegate_invoke (delegate_klass);
8248 invoke_sig = mono_method_signature (invoke);
8250 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8251 mono_method_get_marshal_info (invoke, mspecs);
8253 sig = mono_method_signature (method);
8255 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8257 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8258 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8260 /* we copy the signature, so that we can modify it */
8262 /* Need to free this later */
8263 csig = mono_metadata_signature_dup (invoke_sig);
8265 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8269 memset (&m, 0, sizeof (m));
8275 m.image = method->klass->image;
8277 mono_marshal_set_callconv_from_modopt (invoke, csig);
8279 /* The attribute is only available in Net 2.0 */
8280 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8281 MonoCustomAttrInfo *cinfo;
8282 MonoCustomAttrEntry *attr;
8285 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8286 * contents of the attribute without constructing it, as that might not be
8287 * possible when running in cross-compiling mode.
8289 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8290 mono_error_assert_ok (&error);
8293 for (i = 0; i < cinfo->num_attrs; ++i) {
8294 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8295 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8296 attr = &cinfo->attrs [i];
8302 MonoArray *typed_args, *named_args;
8303 CattrNamedArg *arginfo;
8307 MonoBoolean set_last_error = 0;
8310 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8311 g_assert (mono_error_ok (&error));
8312 g_assert (mono_array_length (typed_args) == 1);
8315 o = mono_array_get (typed_args, MonoObject*, 0);
8316 call_conv = *(gint32*)mono_object_unbox (o);
8319 for (i = 0; i < mono_array_length (named_args); ++i) {
8320 CattrNamedArg *narg = &arginfo [i];
8322 o = mono_array_get (named_args, MonoObject*, i);
8324 g_assert (narg->field);
8325 if (!strcmp (narg->field->name, "CharSet")) {
8326 charset = *(gint32*)mono_object_unbox (o);
8327 } else if (!strcmp (narg->field->name, "SetLastError")) {
8328 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8329 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8330 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8331 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8332 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8334 g_assert_not_reached ();
8340 memset (&piinfo, 0, sizeof (piinfo));
8342 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8344 csig->call_convention = call_conv - 1;
8347 if (cinfo && !cinfo->cached)
8348 mono_custom_attrs_free (cinfo);
8351 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8353 if (!target_handle) {
8356 // FIXME: Associate it with the method+delegate_klass pair
8357 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8358 info->d.native_to_managed.method = method;
8359 info->d.native_to_managed.klass = delegate_klass;
8361 res = mono_mb_create_and_cache_full (cache, method,
8362 mb, csig, sig->param_count + 16,
8368 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8372 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8374 mono_metadata_free_marshal_spec (mspecs [i]);
8377 /* mono_method_print_code (res); */
8383 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8387 MonoMethodSignature *sig;
8388 MonoMethodBuilder *mb;
8393 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8395 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8398 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8399 MonoMethodSignature *csig;
8400 MonoMarshalSpec **mspecs;
8401 EmitMarshalContext m;
8403 sig = mono_method_signature (method);
8404 g_assert (!sig->hasthis);
8406 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8407 mono_method_get_marshal_info (method, mspecs);
8409 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8410 csig = mono_metadata_signature_dup_full (image, sig);
8414 memset (&m, 0, sizeof (m));
8422 mono_marshal_set_callconv_from_modopt (method, csig);
8424 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8426 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8431 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8434 for (i = sig->param_count; i >= 0; i--)
8436 mono_metadata_free_marshal_spec (mspecs [i]);
8439 return mono_compile_method (method);
8442 sig = mono_method_signature (method);
8443 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8445 param_count = sig->param_count + sig->hasthis;
8447 for (i = 0; i < param_count; i++)
8448 mono_mb_emit_ldarg (mb, i);
8450 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8451 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8453 mono_mb_emit_op (mb, CEE_CALL, method);
8454 mono_mb_emit_byte (mb, CEE_RET);
8459 method = mono_mb_create (mb, sig, param_count, NULL);
8462 return mono_compile_method (method);
8468 * The code directly following this is the cache hit, value positive branch
8470 * This function takes a new method builder with 0 locals and adds two locals
8471 * to create multiple out-branches and the fall through state of having the object
8472 * on the stack after a cache miss
8475 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8476 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8477 MonoMethodBuilder *mb)
8481 /* allocate local 0 (pointer) obj_vtable */
8482 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8483 /* allocate local 1 (pointer) cached_vtable */
8484 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8487 mono_mb_emit_ldarg (mb, obj_arg_position);
8488 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8490 /*obj_vtable = obj->vtable;*/
8491 mono_mb_emit_ldarg (mb, obj_arg_position);
8492 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8493 mono_mb_emit_byte (mb, CEE_LDIND_I);
8494 mono_mb_emit_stloc (mb, 0);
8496 /* cached_vtable = *cache*/
8497 mono_mb_emit_ldarg (mb, cache_arg_position);
8498 mono_mb_emit_byte (mb, CEE_LDIND_I);
8499 mono_mb_emit_stloc (mb, 1);
8501 mono_mb_emit_ldloc (mb, 1);
8502 mono_mb_emit_byte (mb, CEE_LDC_I4);
8503 mono_mb_emit_i4 (mb, ~0x1);
8504 mono_mb_emit_byte (mb, CEE_CONV_I);
8505 mono_mb_emit_byte (mb, CEE_AND);
8506 mono_mb_emit_ldloc (mb, 0);
8507 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8508 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8510 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8511 mono_mb_emit_ldloc (mb, 1);
8512 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8513 mono_mb_emit_byte (mb, CEE_CONV_U);
8514 mono_mb_emit_byte (mb, CEE_AND);
8515 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8516 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8519 mono_mb_patch_branch (mb, cache_miss_pos);
8522 mono_mb_emit_ldarg (mb, obj_arg_position);
8523 mono_mb_emit_ldarg (mb, class_arg_position);
8524 mono_mb_emit_ldarg (mb, cache_arg_position);
8525 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8528 #endif /* DISABLE_JIT */
8531 * This does the equivalent of mono_object_castclass_with_cache.
8532 * The wrapper info for the wrapper is a WrapperInfo structure.
8535 mono_marshal_get_castclass_with_cache (void)
8537 static MonoMethod *cached;
8539 MonoMethodBuilder *mb;
8540 MonoMethodSignature *sig;
8541 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8544 const int obj_arg_position = 0;
8545 const int class_arg_position = 1;
8546 const int cache_arg_position = 2;
8551 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8552 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8553 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8554 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8555 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8556 sig->ret = &mono_defaults.object_class->byval_arg;
8560 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8561 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8562 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8565 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8566 mono_mb_emit_ldarg (mb, obj_arg_position);
8567 mono_mb_emit_byte (mb, CEE_RET);
8570 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8571 mono_mb_patch_branch (mb, invalid_cast_pos);
8572 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8575 mono_mb_patch_branch (mb, return_null_pos);
8576 mono_mb_emit_byte (mb, CEE_LDNULL);
8577 mono_mb_emit_byte (mb, CEE_RET);
8578 #endif /* DISABLE_JIT */
8580 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8581 res = mono_mb_create (mb, sig, 8, info);
8584 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8585 mono_free_method (res);
8586 mono_metadata_free_method_signature (sig);
8594 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8596 MonoObject *isinst = mono_object_isinst (obj, klass);
8598 #ifndef DISABLE_REMOTING
8599 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8603 uintptr_t cache_update = (uintptr_t)obj->vtable;
8605 cache_update = cache_update | 0x1;
8607 *cache = cache_update;
8613 * This does the equivalent of mono_object_isinst_with_cache.
8614 * The wrapper info for the wrapper is a WrapperInfo structure.
8617 mono_marshal_get_isinst_with_cache (void)
8619 static MonoMethod *cached;
8621 MonoMethodBuilder *mb;
8622 MonoMethodSignature *sig;
8623 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8626 const int obj_arg_position = 0;
8627 const int class_arg_position = 1;
8628 const int cache_arg_position = 2;
8633 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8634 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8636 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8638 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8640 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8641 sig->ret = &mono_defaults.object_class->byval_arg;
8645 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8646 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8647 // Return the object gotten via the slow path.
8648 mono_mb_emit_byte (mb, CEE_RET);
8651 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8652 mono_mb_patch_branch (mb, return_null_pos);
8653 mono_mb_emit_byte (mb, CEE_LDNULL);
8654 mono_mb_emit_byte (mb, CEE_RET);
8657 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8658 mono_mb_emit_ldarg (mb, 0);
8659 mono_mb_emit_byte (mb, CEE_RET);
8662 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8663 res = mono_mb_create (mb, sig, 8, info);
8666 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8667 mono_free_method (res);
8668 mono_metadata_free_method_signature (sig);
8676 * mono_marshal_get_isinst:
8677 * @klass: the type of the field
8679 * This method generates a function which can be used to check if an object is
8680 * an instance of the given type, icluding the case where the object is a proxy.
8681 * The generated function has the following signature:
8682 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8685 mono_marshal_get_isinst (MonoClass *klass)
8687 static MonoMethodSignature *isint_sig = NULL;
8691 int pos_was_ok, pos_end;
8692 #ifndef DISABLE_REMOTING
8693 int pos_end2, pos_failed;
8696 MonoMethodBuilder *mb;
8698 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8699 if ((res = mono_marshal_find_in_cache (cache, klass)))
8703 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8704 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8705 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8706 isint_sig->pinvoke = 0;
8709 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8710 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8713 mb->method->save_lmf = 1;
8716 /* check if the object is a proxy that needs special cast */
8717 mono_mb_emit_ldarg (mb, 0);
8718 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8719 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8721 /* The result of MONO_CISINST can be:
8722 0) the type check succeeded
8723 1) the type check did not succeed
8724 2) a CanCastTo call is needed */
8725 #ifndef DISABLE_REMOTING
8726 mono_mb_emit_byte (mb, CEE_DUP);
8727 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8729 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8730 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8732 /* get the real proxy from the transparent proxy*/
8734 mono_mb_emit_ldarg (mb, 0);
8735 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8736 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8740 mono_mb_patch_branch (mb, pos_failed);
8741 mono_mb_emit_byte (mb, CEE_LDNULL);
8742 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8746 mono_mb_patch_branch (mb, pos_was_ok);
8747 mono_mb_emit_byte (mb, CEE_POP);
8748 mono_mb_emit_ldarg (mb, 0);
8752 mono_mb_patch_branch (mb, pos_end);
8753 mono_mb_patch_branch (mb, pos_end2);
8754 mono_mb_emit_byte (mb, CEE_RET);
8756 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8760 mono_mb_emit_byte (mb, CEE_LDNULL);
8761 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8765 mono_mb_patch_branch (mb, pos_was_ok);
8766 mono_mb_emit_ldarg (mb, 0);
8770 mono_mb_patch_branch (mb, pos_end);
8771 mono_mb_emit_byte (mb, CEE_RET);
8772 #endif /* DISABLE_REMOTING */
8773 #endif /* DISABLE_JIT */
8775 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8776 info->d.proxy.klass = klass;
8777 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8784 * mono_marshal_get_castclass:
8785 * @klass: the type of the field
8787 * This method generates a function which can be used to cast an object to
8788 * an instance of the given type, icluding the case where the object is a proxy.
8789 * The generated function has the following signature:
8790 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8791 * The wrapper info for the wrapper is a WrapperInfo structure.
8794 mono_marshal_get_castclass (MonoClass *klass)
8796 static MonoMethodSignature *castclass_sig = NULL;
8799 #ifndef DISABLE_REMOTING
8800 int pos_was_ok, pos_was_ok2;
8803 MonoMethodBuilder *mb;
8806 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8807 if ((res = mono_marshal_find_in_cache (cache, klass)))
8810 if (!castclass_sig) {
8811 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8812 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8813 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8814 castclass_sig->pinvoke = 0;
8817 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8818 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8821 mb->method->save_lmf = 1;
8824 /* check if the object is a proxy that needs special cast */
8825 mono_mb_emit_ldarg (mb, 0);
8826 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8827 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8829 /* The result of MONO_CCASTCLASS can be:
8830 0) the cast is valid
8831 1) cast of unknown proxy type
8832 or an exception if the cast is is invalid
8834 #ifndef DISABLE_REMOTING
8835 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8837 /* get the real proxy from the transparent proxy*/
8839 mono_mb_emit_ldarg (mb, 0);
8840 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8841 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8844 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8847 mono_mb_patch_branch (mb, pos_was_ok);
8848 mono_mb_patch_branch (mb, pos_was_ok2);
8850 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8851 mono_mb_emit_byte (mb, CEE_POP);
8852 #endif /* DISABLE_REMOTING */
8854 mono_mb_emit_ldarg (mb, 0);
8857 mono_mb_emit_byte (mb, CEE_RET);
8858 #endif /* DISABLE_JIT */
8860 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8862 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8870 * mono_marshal_get_struct_to_ptr:
8873 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8874 * The wrapper info for the wrapper is a WrapperInfo structure.
8877 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8879 MonoMethodBuilder *mb;
8880 static MonoMethod *stoptr = NULL;
8884 g_assert (klass != NULL);
8886 mono_marshal_load_type_info (klass);
8888 if (klass->marshal_info->str_to_ptr)
8889 return klass->marshal_info->str_to_ptr;
8892 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8895 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8898 if (klass->blittable) {
8899 mono_mb_emit_byte (mb, CEE_LDARG_1);
8900 mono_mb_emit_byte (mb, CEE_LDARG_0);
8901 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8902 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8903 mono_mb_emit_byte (mb, CEE_PREFIX1);
8904 mono_mb_emit_byte (mb, CEE_CPBLK);
8907 /* allocate local 0 (pointer) src_ptr */
8908 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8909 /* allocate local 1 (pointer) dst_ptr */
8910 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8911 /* allocate local 2 (boolean) delete_old */
8912 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8913 mono_mb_emit_byte (mb, CEE_LDARG_2);
8914 mono_mb_emit_stloc (mb, 2);
8916 /* initialize src_ptr to point to the start of object data */
8917 mono_mb_emit_byte (mb, CEE_LDARG_0);
8918 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8919 mono_mb_emit_stloc (mb, 0);
8921 /* initialize dst_ptr */
8922 mono_mb_emit_byte (mb, CEE_LDARG_1);
8923 mono_mb_emit_stloc (mb, 1);
8925 emit_struct_conv (mb, klass, FALSE);
8928 mono_mb_emit_byte (mb, CEE_RET);
8930 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8931 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8934 mono_marshal_lock ();
8935 if (!klass->marshal_info->str_to_ptr)
8936 klass->marshal_info->str_to_ptr = res;
8938 res = klass->marshal_info->str_to_ptr;
8939 mono_marshal_unlock ();
8944 * mono_marshal_get_ptr_to_struct:
8947 * generates IL code for PtrToStructure (IntPtr src, object structure)
8948 * The wrapper info for the wrapper is a WrapperInfo structure.
8951 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8953 MonoMethodBuilder *mb;
8954 static MonoMethodSignature *ptostr = NULL;
8958 g_assert (klass != NULL);
8960 mono_marshal_load_type_info (klass);
8962 if (klass->marshal_info->ptr_to_str)
8963 return klass->marshal_info->ptr_to_str;
8966 MonoMethodSignature *sig;
8968 /* Create the signature corresponding to
8969 static void PtrToStructure (IntPtr ptr, object structure);
8970 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8971 sig = mono_create_icall_signature ("void ptr object");
8972 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8974 mono_memory_barrier ();
8978 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8981 if (klass->blittable) {
8982 mono_mb_emit_byte (mb, CEE_LDARG_1);
8983 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8984 mono_mb_emit_byte (mb, CEE_LDARG_0);
8985 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8986 mono_mb_emit_byte (mb, CEE_PREFIX1);
8987 mono_mb_emit_byte (mb, CEE_CPBLK);
8990 /* allocate local 0 (pointer) src_ptr */
8991 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8992 /* allocate local 1 (pointer) dst_ptr */
8993 mono_mb_add_local (mb, &klass->this_arg);
8995 /* initialize src_ptr to point to the start of object data */
8996 mono_mb_emit_byte (mb, CEE_LDARG_0);
8997 mono_mb_emit_stloc (mb, 0);
8999 /* initialize dst_ptr */
9000 mono_mb_emit_byte (mb, CEE_LDARG_1);
9001 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9002 mono_mb_emit_stloc (mb, 1);
9004 emit_struct_conv (mb, klass, TRUE);
9007 mono_mb_emit_byte (mb, CEE_RET);
9009 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9010 res = mono_mb_create (mb, ptostr, 0, info);
9013 mono_marshal_lock ();
9014 if (!klass->marshal_info->ptr_to_str)
9015 klass->marshal_info->ptr_to_str = res;
9017 res = klass->marshal_info->ptr_to_str;
9018 mono_marshal_unlock ();
9023 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9024 * This is used to avoid infinite recursion since it is hard to determine where to
9025 * replace a method with its synchronized wrapper, and where not.
9026 * The runtime should execute METHOD instead of the wrapper.
9027 * The wrapper info for the wrapper is a WrapperInfo structure.
9030 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9032 MonoMethodBuilder *mb;
9034 MonoMethodSignature *sig;
9036 MonoGenericContext *ctx = NULL;
9037 MonoGenericContainer *container = NULL;
9039 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9040 ctx = &((MonoMethodInflated*)method)->context;
9041 method = ((MonoMethodInflated*)method)->declaring;
9042 container = mono_method_get_generic_container (method);
9044 container = method->klass->generic_container;
9045 g_assert (container);
9048 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9050 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9051 mono_mb_emit_byte (mb, CEE_RET);
9053 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9055 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9056 info->d.synchronized_inner.method = method;
9057 res = mono_mb_create (mb, sig, 0, info);
9061 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9062 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9068 * generates IL code for the synchronized wrapper: the generated method
9069 * calls METHOD while locking 'this' or the parent type.
9072 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9074 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9075 MonoMethodSignature *sig;
9076 MonoExceptionClause *clause;
9077 MonoMethodBuilder *mb;
9081 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9082 MonoGenericContext *ctx = NULL;
9083 MonoMethod *orig_method = NULL;
9084 MonoGenericContainer *container = NULL;
9088 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9091 /* FIXME: Support generic methods too */
9092 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9093 orig_method = method;
9094 ctx = &((MonoMethodInflated*)method)->context;
9095 method = ((MonoMethodInflated*)method)->declaring;
9096 container = mono_method_get_generic_container (method);
9098 container = method->klass->generic_container;
9099 g_assert (container);
9106 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9107 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9111 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9112 if ((res = mono_marshal_find_in_cache (cache, method)))
9116 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9119 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9121 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9122 info->d.synchronized.method = method;
9125 mb->skip_visibility = 1;
9127 if (!MONO_TYPE_IS_VOID (sig->ret))
9128 ret_local = mono_mb_add_local (mb, sig->ret);
9131 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9132 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9134 /* This will throw the type load exception when the wrapper is compiled */
9135 mono_mb_emit_byte (mb, CEE_LDNULL);
9136 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9137 mono_mb_emit_byte (mb, CEE_POP);
9139 if (!MONO_TYPE_IS_VOID (sig->ret))
9140 mono_mb_emit_ldloc (mb, ret_local);
9141 mono_mb_emit_byte (mb, CEE_RET);
9144 res = mono_mb_create_and_cache_full (cache, method,
9145 mb, sig, sig->param_count + 16, info, NULL);
9153 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9154 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9156 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9157 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9160 mono_marshal_lock ();
9162 if (!enter_method) {
9163 MonoMethodDesc *desc;
9165 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9166 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9167 g_assert (enter_method);
9168 mono_method_desc_free (desc);
9170 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9171 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9172 g_assert (exit_method);
9173 mono_method_desc_free (desc);
9175 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9176 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9177 g_assert (gettypefromhandle_method);
9178 mono_method_desc_free (desc);
9181 mono_marshal_unlock ();
9184 /* Push this or the type object */
9185 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9186 /* We have special handling for this in the JIT */
9187 int index = mono_mb_add_data (mb, method->klass);
9188 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9189 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9190 mono_mb_emit_i4 (mb, index);
9192 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9195 mono_mb_emit_ldarg (mb, 0);
9196 mono_mb_emit_stloc (mb, this_local);
9198 /* Call Monitor::Enter() */
9199 mono_mb_emit_ldloc (mb, this_local);
9200 mono_mb_emit_ldloc_addr (mb, taken_local);
9201 mono_mb_emit_managed_call (mb, enter_method, NULL);
9203 clause->try_offset = mono_mb_get_label (mb);
9205 /* Call the method */
9207 mono_mb_emit_ldarg (mb, 0);
9208 for (i = 0; i < sig->param_count; i++)
9209 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9213 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9214 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9216 mono_mb_emit_managed_call (mb, method, NULL);
9219 if (!MONO_TYPE_IS_VOID (sig->ret))
9220 mono_mb_emit_stloc (mb, ret_local);
9222 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9224 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9225 clause->handler_offset = mono_mb_get_label (mb);
9227 /* Call Monitor::Exit() if needed */
9228 mono_mb_emit_ldloc (mb, taken_local);
9229 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9230 mono_mb_emit_ldloc (mb, this_local);
9231 mono_mb_emit_managed_call (mb, exit_method, NULL);
9232 mono_mb_patch_branch (mb, pos2);
9233 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9235 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9237 mono_mb_patch_branch (mb, pos);
9238 if (!MONO_TYPE_IS_VOID (sig->ret))
9239 mono_mb_emit_ldloc (mb, ret_local);
9240 mono_mb_emit_byte (mb, CEE_RET);
9242 mono_mb_set_clauses (mb, 1, clause);
9247 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9248 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9250 res = mono_mb_create_and_cache_full (cache, method,
9251 mb, sig, sig->param_count + 16, info, NULL);
9260 * the returned method calls 'method' unboxing the this argument
9263 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9265 MonoMethodSignature *sig = mono_method_signature (method);
9267 MonoMethodBuilder *mb;
9272 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9274 if ((res = mono_marshal_find_in_cache (cache, method)))
9277 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9279 g_assert (sig->hasthis);
9282 mono_mb_emit_ldarg (mb, 0);
9283 mono_mb_emit_icon (mb, sizeof (MonoObject));
9284 mono_mb_emit_byte (mb, CEE_ADD);
9285 for (i = 0; i < sig->param_count; ++i)
9286 mono_mb_emit_ldarg (mb, i + 1);
9287 mono_mb_emit_managed_call (mb, method, NULL);
9288 mono_mb_emit_byte (mb, CEE_RET);
9291 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9292 info->d.unbox.method = method;
9294 res = mono_mb_create_and_cache_full (cache, method,
9295 mb, sig, sig->param_count + 16, info, NULL);
9298 /* mono_method_print_code (res); */
9304 STELEMREF_OBJECT, /*no check at all*/
9305 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9306 STELEMREF_CLASS, /*only the klass->parents check*/
9307 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9308 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9309 STELEMREF_KIND_COUNT
9312 static const char *strelemref_wrapper_name[] = {
9313 "object", "sealed_class", "class", "interface", "complex"
9317 is_monomorphic_array (MonoClass *klass)
9319 MonoClass *element_class;
9320 if (klass->rank != 1)
9323 element_class = klass->element_class;
9324 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9328 get_virtual_stelemref_kind (MonoClass *element_class)
9330 if (element_class == mono_defaults.object_class)
9331 return STELEMREF_OBJECT;
9332 if (is_monomorphic_array (element_class))
9333 return STELEMREF_SEALED_CLASS;
9334 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9335 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9336 #ifdef COMPRESSED_INTERFACE_BITMAP
9337 return STELEMREF_COMPLEX;
9339 return STELEMREF_INTERFACE;
9341 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9342 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9343 return STELEMREF_COMPLEX;
9344 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9345 return STELEMREF_SEALED_CLASS;
9346 return STELEMREF_CLASS;
9352 load_array_element_address (MonoMethodBuilder *mb)
9354 mono_mb_emit_ldarg (mb, 0);
9355 mono_mb_emit_ldarg (mb, 1);
9356 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9360 load_array_class (MonoMethodBuilder *mb, int aklass)
9362 mono_mb_emit_ldarg (mb, 0);
9363 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9364 mono_mb_emit_byte (mb, CEE_LDIND_I);
9365 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9366 mono_mb_emit_byte (mb, CEE_LDIND_I);
9367 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9368 mono_mb_emit_byte (mb, CEE_LDIND_I);
9369 mono_mb_emit_stloc (mb, aklass);
9373 load_value_class (MonoMethodBuilder *mb, int vklass)
9375 mono_mb_emit_ldarg (mb, 2);
9376 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9377 mono_mb_emit_byte (mb, CEE_LDIND_I);
9378 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9379 mono_mb_emit_byte (mb, CEE_LDIND_I);
9380 mono_mb_emit_stloc (mb, vklass);
9386 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9388 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9389 printf ("slow vstore of %s\n", name);
9395 * The wrapper info for the wrapper is a WrapperInfo structure.
9398 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9399 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9400 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9401 * - Add a case for arrays of arrays.
9404 get_virtual_stelemref_wrapper (int kind)
9406 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9407 static MonoMethodSignature *signature;
9408 MonoMethodBuilder *mb;
9411 const char *param_names [16];
9413 int aklass, vklass, vtable, uiid;
9414 int array_slot_addr;
9417 if (cached_methods [kind])
9418 return cached_methods [kind];
9420 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9421 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9425 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9427 /* void this::stelemref (size_t idx, void* value) */
9428 sig->ret = &mono_defaults.void_class->byval_arg;
9429 sig->hasthis = TRUE;
9430 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9431 sig->params [1] = &mono_defaults.object_class->byval_arg;
9436 param_names [0] = "index";
9437 param_names [1] = "value";
9438 mono_mb_set_param_names (mb, param_names);
9440 /*For now simply call plain old stelemref*/
9442 case STELEMREF_OBJECT:
9443 /* ldelema (implicit bound check) */
9444 load_array_element_address (mb);
9446 mono_mb_emit_ldarg (mb, 2);
9447 mono_mb_emit_byte (mb, CEE_STIND_REF);
9448 mono_mb_emit_byte (mb, CEE_RET);
9451 case STELEMREF_COMPLEX:
9453 <ldelema (bound check)>
9456 if (!mono_object_isinst (value, aklass))
9460 *array_slot_addr = value;
9463 throw new ArrayTypeMismatchException ();
9466 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9467 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9471 /*Use this to debug/record stores that are going thru the slow path*/
9472 MonoMethodSignature *csig;
9473 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9474 csig->ret = &mono_defaults.void_class->byval_arg;
9475 csig->params [0] = &mono_defaults.object_class->byval_arg;
9476 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9477 csig->params [2] = &mono_defaults.object_class->byval_arg;
9478 mono_mb_emit_ldarg (mb, 0);
9479 mono_mb_emit_ldarg (mb, 1);
9480 mono_mb_emit_ldarg (mb, 2);
9481 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9485 /* ldelema (implicit bound check) */
9486 load_array_element_address (mb);
9487 mono_mb_emit_stloc (mb, array_slot_addr);
9489 /* if (!value) goto do_store */
9490 mono_mb_emit_ldarg (mb, 2);
9491 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9493 /* aklass = array->vtable->klass->element_class */
9494 load_array_class (mb, aklass);
9496 /*if (mono_object_isinst (value, aklass)) */
9497 mono_mb_emit_ldarg (mb, 2);
9498 mono_mb_emit_ldloc (mb, aklass);
9499 mono_mb_emit_icall (mb, mono_object_isinst);
9500 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9503 mono_mb_patch_branch (mb, b1);
9504 mono_mb_emit_ldloc (mb, array_slot_addr);
9505 mono_mb_emit_ldarg (mb, 2);
9506 mono_mb_emit_byte (mb, CEE_STIND_REF);
9507 mono_mb_emit_byte (mb, CEE_RET);
9510 mono_mb_patch_branch (mb, b2);
9512 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9515 case STELEMREF_SEALED_CLASS:
9517 <ldelema (bound check)>
9521 aklass = array->vtable->klass->element_class;
9522 vklass = value->vtable->klass;
9524 if (vklass != aklass)
9528 *array_slot_addr = value;
9531 throw new ArrayTypeMismatchException ();
9533 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9534 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9535 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9538 /* ldelema (implicit bound check) */
9539 load_array_element_address (mb);
9540 mono_mb_emit_stloc (mb, array_slot_addr);
9542 /* if (!value) goto do_store */
9543 mono_mb_emit_ldarg (mb, 2);
9544 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9546 /* aklass = array->vtable->klass->element_class */
9547 load_array_class (mb, aklass);
9549 /* vklass = value->vtable->klass */
9550 load_value_class (mb, vklass);
9552 /*if (vklass != aklass) goto do_exception; */
9553 mono_mb_emit_ldloc (mb, aklass);
9554 mono_mb_emit_ldloc (mb, vklass);
9555 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9558 mono_mb_patch_branch (mb, b1);
9559 mono_mb_emit_ldloc (mb, array_slot_addr);
9560 mono_mb_emit_ldarg (mb, 2);
9561 mono_mb_emit_byte (mb, CEE_STIND_REF);
9562 mono_mb_emit_byte (mb, CEE_RET);
9565 mono_mb_patch_branch (mb, b2);
9566 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9569 case STELEMREF_CLASS:
9572 <ldelema (bound check)>
9576 aklass = array->vtable->klass->element_class;
9577 vklass = value->vtable->klass;
9579 if (vklass->idepth < aklass->idepth)
9582 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9586 *array_slot_addr = value;
9590 throw new ArrayTypeMismatchException ();
9592 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9593 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9594 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9596 /* ldelema (implicit bound check) */
9597 load_array_element_address (mb);
9598 mono_mb_emit_stloc (mb, array_slot_addr);
9600 /* if (!value) goto do_store */
9601 mono_mb_emit_ldarg (mb, 2);
9602 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9604 /* aklass = array->vtable->klass->element_class */
9605 load_array_class (mb, aklass);
9607 /* vklass = value->vtable->klass */
9608 load_value_class (mb, vklass);
9610 /*if (mono_object_isinst (value, aklass)) */
9611 mono_mb_emit_ldarg (mb, 2);
9612 mono_mb_emit_ldloc (mb, aklass);
9613 mono_mb_emit_icall (mb, mono_object_isinst);
9614 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9616 /* if (vklass->idepth < aklass->idepth) goto failue */
9617 mono_mb_emit_ldloc (mb, vklass);
9618 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9619 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9621 mono_mb_emit_ldloc (mb, aklass);
9622 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9623 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9625 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9627 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9628 mono_mb_emit_ldloc (mb, vklass);
9629 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9630 mono_mb_emit_byte (mb, CEE_LDIND_I);
9632 mono_mb_emit_ldloc (mb, aklass);
9633 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9634 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9635 mono_mb_emit_icon (mb, 1);
9636 mono_mb_emit_byte (mb, CEE_SUB);
9637 mono_mb_emit_icon (mb, sizeof (void*));
9638 mono_mb_emit_byte (mb, CEE_MUL);
9639 mono_mb_emit_byte (mb, CEE_ADD);
9640 mono_mb_emit_byte (mb, CEE_LDIND_I);
9642 mono_mb_emit_ldloc (mb, aklass);
9643 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9646 mono_mb_patch_branch (mb, b1);
9647 mono_mb_emit_ldloc (mb, array_slot_addr);
9648 mono_mb_emit_ldarg (mb, 2);
9649 mono_mb_emit_byte (mb, CEE_STIND_REF);
9650 mono_mb_emit_byte (mb, CEE_RET);
9653 mono_mb_patch_branch (mb, b2);
9654 mono_mb_patch_branch (mb, b3);
9656 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9659 case STELEMREF_INTERFACE:
9666 klass = array->obj.vtable->klass->element_class;
9668 uiid = klass->interface_id;
9669 if (uiid > vt->max_interface_id)
9671 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9674 mono_array_setref (array, index, value);
9677 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9679 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9680 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9681 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9682 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9684 /* ldelema (implicit bound check) */
9685 load_array_element_address (mb);
9686 mono_mb_emit_stloc (mb, array_slot_addr);
9688 /* if (!value) goto do_store */
9689 mono_mb_emit_ldarg (mb, 2);
9690 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9692 /* klass = array->vtable->klass->element_class */
9693 load_array_class (mb, aklass);
9695 /* vt = value->vtable */
9696 mono_mb_emit_ldarg (mb, 2);
9697 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9698 mono_mb_emit_byte (mb, CEE_LDIND_I);
9699 mono_mb_emit_stloc (mb, vtable);
9701 /* uiid = klass->interface_id; */
9702 mono_mb_emit_ldloc (mb, aklass);
9703 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9704 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9705 mono_mb_emit_stloc (mb, uiid);
9707 /*if (uiid > vt->max_interface_id)*/
9708 mono_mb_emit_ldloc (mb, uiid);
9709 mono_mb_emit_ldloc (mb, vtable);
9710 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9711 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9712 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9714 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9716 /*vt->interface_bitmap*/
9717 mono_mb_emit_ldloc (mb, vtable);
9718 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9719 mono_mb_emit_byte (mb, CEE_LDIND_I);
9722 mono_mb_emit_ldloc (mb, uiid);
9723 mono_mb_emit_icon (mb, 3);
9724 mono_mb_emit_byte (mb, CEE_SHR_UN);
9726 /*vt->interface_bitmap [(uiid) >> 3]*/
9727 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9728 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9730 /*(1 << ((uiid)&7)))*/
9731 mono_mb_emit_icon (mb, 1);
9732 mono_mb_emit_ldloc (mb, uiid);
9733 mono_mb_emit_icon (mb, 7);
9734 mono_mb_emit_byte (mb, CEE_AND);
9735 mono_mb_emit_byte (mb, CEE_SHL);
9737 /*bitwise and the whole thing*/
9738 mono_mb_emit_byte (mb, CEE_AND);
9739 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9742 mono_mb_patch_branch (mb, b1);
9743 mono_mb_emit_ldloc (mb, array_slot_addr);
9744 mono_mb_emit_ldarg (mb, 2);
9745 mono_mb_emit_byte (mb, CEE_STIND_REF);
9746 mono_mb_emit_byte (mb, CEE_RET);
9749 mono_mb_patch_branch (mb, b2);
9750 mono_mb_patch_branch (mb, b3);
9751 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9755 mono_mb_emit_ldarg (mb, 0);
9756 mono_mb_emit_ldarg (mb, 1);
9757 mono_mb_emit_ldarg (mb, 2);
9758 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9759 mono_mb_emit_byte (mb, CEE_RET);
9762 #endif /* DISABLE_JIT */
9763 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9764 info->d.virtual_stelemref.kind = kind;
9765 res = mono_mb_create (mb, signature, 4, info);
9766 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9768 mono_marshal_lock ();
9769 if (!cached_methods [kind]) {
9770 cached_methods [kind] = res;
9771 mono_marshal_unlock ();
9773 mono_marshal_unlock ();
9774 mono_free_method (res);
9778 return cached_methods [kind];
9782 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9786 g_assert (array_class->rank == 1);
9787 kind = get_virtual_stelemref_kind (array_class->element_class);
9789 return get_virtual_stelemref_wrapper (kind);
9793 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9798 *nwrappers = STELEMREF_KIND_COUNT;
9799 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9800 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9801 res [i] = get_virtual_stelemref_wrapper (i);
9806 * The wrapper info for the wrapper is a WrapperInfo structure.
9809 mono_marshal_get_stelemref (void)
9811 static MonoMethod* ret = NULL;
9812 MonoMethodSignature *sig;
9813 MonoMethodBuilder *mb;
9816 guint32 b1, b2, b3, b4;
9819 int array_slot_addr;
9824 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9827 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9829 /* void stelemref (void* array, int idx, void* value) */
9830 sig->ret = &mono_defaults.void_class->byval_arg;
9831 sig->params [0] = &mono_defaults.object_class->byval_arg;
9832 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9833 sig->params [2] = &mono_defaults.object_class->byval_arg;
9836 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9837 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9838 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9842 <ldelema (bound check)>
9846 aklass = array->vtable->klass->element_class;
9847 vklass = value->vtable->klass;
9849 if (vklass->idepth < aklass->idepth)
9852 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9856 *array_slot_addr = value;
9860 if (mono_object_isinst (value, aklass))
9863 throw new ArrayTypeMismatchException ();
9866 /* ldelema (implicit bound check) */
9867 mono_mb_emit_ldarg (mb, 0);
9868 mono_mb_emit_ldarg (mb, 1);
9869 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9870 mono_mb_emit_stloc (mb, array_slot_addr);
9872 /* if (!value) goto do_store */
9873 mono_mb_emit_ldarg (mb, 2);
9874 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9876 /* aklass = array->vtable->klass->element_class */
9877 mono_mb_emit_ldarg (mb, 0);
9878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9879 mono_mb_emit_byte (mb, CEE_LDIND_I);
9880 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9881 mono_mb_emit_byte (mb, CEE_LDIND_I);
9882 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9883 mono_mb_emit_byte (mb, CEE_LDIND_I);
9884 mono_mb_emit_stloc (mb, aklass);
9886 /* vklass = value->vtable->klass */
9887 mono_mb_emit_ldarg (mb, 2);
9888 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9889 mono_mb_emit_byte (mb, CEE_LDIND_I);
9890 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9891 mono_mb_emit_byte (mb, CEE_LDIND_I);
9892 mono_mb_emit_stloc (mb, vklass);
9894 /* if (vklass->idepth < aklass->idepth) goto failue */
9895 mono_mb_emit_ldloc (mb, vklass);
9896 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9897 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9899 mono_mb_emit_ldloc (mb, aklass);
9900 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9901 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9903 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9905 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9906 mono_mb_emit_ldloc (mb, vklass);
9907 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9908 mono_mb_emit_byte (mb, CEE_LDIND_I);
9910 mono_mb_emit_ldloc (mb, aklass);
9911 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9912 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9913 mono_mb_emit_icon (mb, 1);
9914 mono_mb_emit_byte (mb, CEE_SUB);
9915 mono_mb_emit_icon (mb, sizeof (void*));
9916 mono_mb_emit_byte (mb, CEE_MUL);
9917 mono_mb_emit_byte (mb, CEE_ADD);
9918 mono_mb_emit_byte (mb, CEE_LDIND_I);
9920 mono_mb_emit_ldloc (mb, aklass);
9922 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9924 copy_pos = mono_mb_get_label (mb);
9926 mono_mb_patch_branch (mb, b1);
9927 mono_mb_emit_ldloc (mb, array_slot_addr);
9928 mono_mb_emit_ldarg (mb, 2);
9929 mono_mb_emit_byte (mb, CEE_STIND_REF);
9931 mono_mb_emit_byte (mb, CEE_RET);
9934 mono_mb_patch_branch (mb, b2);
9935 mono_mb_patch_branch (mb, b3);
9937 mono_mb_emit_ldarg (mb, 2);
9938 mono_mb_emit_ldloc (mb, aklass);
9939 mono_mb_emit_icall (mb, mono_object_isinst);
9941 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9942 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9943 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9945 mono_mb_emit_byte (mb, CEE_RET);
9947 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9948 ret = mono_mb_create (mb, sig, 4, info);
9955 * mono_marshal_get_gsharedvt_in_wrapper:
9957 * This wrapper handles calls from normal code to gsharedvt code.
9959 * The wrapper info for the wrapper is a WrapperInfo structure.
9962 mono_marshal_get_gsharedvt_in_wrapper (void)
9964 static MonoMethod* ret = NULL;
9965 MonoMethodSignature *sig;
9966 MonoMethodBuilder *mb;
9972 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9974 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9975 sig->ret = &mono_defaults.void_class->byval_arg;
9979 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9981 mono_mb_emit_byte (mb, CEE_RET);
9983 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9984 ret = mono_mb_create (mb, sig, 4, info);
9991 * mono_marshal_get_gsharedvt_out_wrapper:
9993 * This wrapper handles calls from gsharedvt code to normal code.
9995 * The wrapper info for the wrapper is a WrapperInfo structure.
9998 mono_marshal_get_gsharedvt_out_wrapper (void)
10000 static MonoMethod* ret = NULL;
10001 MonoMethodSignature *sig;
10002 MonoMethodBuilder *mb;
10008 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10010 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10011 sig->ret = &mono_defaults.void_class->byval_arg;
10013 #ifndef DISABLE_JIT
10015 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10017 mono_mb_emit_byte (mb, CEE_RET);
10019 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10020 ret = mono_mb_create (mb, sig, 4, info);
10029 MonoMethod *method;
10032 /* LOCKING: vars accessed under the marshal lock */
10033 static ArrayElemAddr *elem_addr_cache = NULL;
10034 static int elem_addr_cache_size = 0;
10035 static int elem_addr_cache_next = 0;
10038 * mono_marshal_get_array_address:
10039 * @rank: rank of the array type
10040 * @elem_size: size in bytes of an element of an array.
10042 * Returns a MonoMethod that implements the code to get the address
10043 * of an element in a multi-dimenasional array of @rank dimensions.
10044 * The returned method takes an array as the first argument and then
10045 * @rank indexes for the @rank dimensions.
10046 * If ELEM_SIZE is 0, read the array size from the array object.
10049 mono_marshal_get_array_address (int rank, int elem_size)
10052 MonoMethodBuilder *mb;
10053 MonoMethodSignature *sig;
10056 int i, bounds, ind, realidx;
10057 int branch_pos, *branch_positions;
10061 mono_marshal_lock ();
10062 for (i = 0; i < elem_addr_cache_next; ++i) {
10063 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10064 ret = elem_addr_cache [i].method;
10068 mono_marshal_unlock ();
10072 branch_positions = g_new0 (int, rank);
10074 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10076 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10077 sig->ret = &mono_defaults.int_class->byval_arg;
10078 sig->params [0] = &mono_defaults.object_class->byval_arg;
10079 for (i = 0; i < rank; ++i) {
10080 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10083 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10084 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10087 #ifndef DISABLE_JIT
10088 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10089 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10090 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10092 /* bounds = array->bounds; */
10093 mono_mb_emit_ldarg (mb, 0);
10094 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10095 mono_mb_emit_byte (mb, CEE_LDIND_I);
10096 mono_mb_emit_stloc (mb, bounds);
10098 /* ind is the overall element index, realidx is the partial index in a single dimension */
10099 /* ind = idx0 - bounds [0].lower_bound */
10100 mono_mb_emit_ldarg (mb, 1);
10101 mono_mb_emit_ldloc (mb, bounds);
10102 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10103 mono_mb_emit_byte (mb, CEE_ADD);
10104 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10105 mono_mb_emit_byte (mb, CEE_SUB);
10106 mono_mb_emit_stloc (mb, ind);
10107 /* if (ind >= bounds [0].length) goto exeception; */
10108 mono_mb_emit_ldloc (mb, ind);
10109 mono_mb_emit_ldloc (mb, bounds);
10110 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10111 mono_mb_emit_byte (mb, CEE_ADD);
10112 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10113 /* note that we use unsigned comparison */
10114 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10116 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10117 * We could also decide to ignore the passed elem_size and get it
10118 * from the array object, to reduce the number of methods we generate:
10119 * the additional cost is 3 memory loads and a non-immediate mul.
10121 for (i = 1; i < rank; ++i) {
10122 /* realidx = idxi - bounds [i].lower_bound */
10123 mono_mb_emit_ldarg (mb, 1 + i);
10124 mono_mb_emit_ldloc (mb, bounds);
10125 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10126 mono_mb_emit_byte (mb, CEE_ADD);
10127 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10128 mono_mb_emit_byte (mb, CEE_SUB);
10129 mono_mb_emit_stloc (mb, realidx);
10130 /* if (realidx >= bounds [i].length) goto exeception; */
10131 mono_mb_emit_ldloc (mb, realidx);
10132 mono_mb_emit_ldloc (mb, bounds);
10133 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10134 mono_mb_emit_byte (mb, CEE_ADD);
10135 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10136 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10137 /* ind = ind * bounds [i].length + realidx */
10138 mono_mb_emit_ldloc (mb, ind);
10139 mono_mb_emit_ldloc (mb, bounds);
10140 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10141 mono_mb_emit_byte (mb, CEE_ADD);
10142 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10143 mono_mb_emit_byte (mb, CEE_MUL);
10144 mono_mb_emit_ldloc (mb, realidx);
10145 mono_mb_emit_byte (mb, CEE_ADD);
10146 mono_mb_emit_stloc (mb, ind);
10149 /* return array->vector + ind * element_size */
10150 mono_mb_emit_ldarg (mb, 0);
10151 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10152 mono_mb_emit_ldloc (mb, ind);
10154 mono_mb_emit_icon (mb, elem_size);
10156 /* Load arr->vtable->klass->sizes.element_class */
10157 mono_mb_emit_ldarg (mb, 0);
10158 mono_mb_emit_byte (mb, CEE_CONV_I);
10159 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10160 mono_mb_emit_byte (mb, CEE_ADD);
10161 mono_mb_emit_byte (mb, CEE_LDIND_I);
10162 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10163 mono_mb_emit_byte (mb, CEE_ADD);
10164 mono_mb_emit_byte (mb, CEE_LDIND_I);
10165 /* sizes is an union, so this reads sizes.element_size */
10166 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10167 mono_mb_emit_byte (mb, CEE_ADD);
10168 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10170 mono_mb_emit_byte (mb, CEE_MUL);
10171 mono_mb_emit_byte (mb, CEE_ADD);
10172 mono_mb_emit_byte (mb, CEE_RET);
10174 /* patch the branches to get here and throw */
10175 for (i = 1; i < rank; ++i) {
10176 mono_mb_patch_branch (mb, branch_positions [i]);
10178 mono_mb_patch_branch (mb, branch_pos);
10179 /* throw exception */
10180 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10182 g_free (branch_positions);
10183 #endif /* DISABLE_JIT */
10185 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10186 info->d.element_addr.rank = rank;
10187 info->d.element_addr.elem_size = elem_size;
10188 ret = mono_mb_create (mb, sig, 4, info);
10191 /* cache the result */
10193 mono_marshal_lock ();
10194 for (i = 0; i < elem_addr_cache_next; ++i) {
10195 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10196 /* FIXME: free ret */
10197 ret = elem_addr_cache [i].method;
10203 if (elem_addr_cache_next >= elem_addr_cache_size) {
10204 int new_size = elem_addr_cache_size + 4;
10205 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10206 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10207 g_free (elem_addr_cache);
10208 elem_addr_cache = new_array;
10209 elem_addr_cache_size = new_size;
10211 elem_addr_cache [elem_addr_cache_next].rank = rank;
10212 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10213 elem_addr_cache [elem_addr_cache_next].method = ret;
10214 elem_addr_cache_next ++;
10216 mono_marshal_unlock ();
10221 * mono_marshal_get_array_accessor_wrapper:
10223 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10226 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10228 MonoMethodSignature *sig;
10229 MonoMethodBuilder *mb;
10233 MonoGenericContext *ctx = NULL;
10234 MonoMethod *orig_method = NULL;
10235 MonoGenericContainer *container = NULL;
10239 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10240 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10241 * FIXME: Use generic methods.
10248 g_assert_not_reached ();
10250 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10251 if ((res = mono_marshal_find_in_cache (cache, method)))
10255 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10258 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10260 #ifndef DISABLE_JIT
10261 /* Call the method */
10263 mono_mb_emit_ldarg (mb, 0);
10264 for (i = 0; i < sig->param_count; i++)
10265 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10269 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10270 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10272 mono_mb_emit_managed_call (mb, method, NULL);
10274 mono_mb_emit_byte (mb, CEE_RET);
10277 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10278 info->d.array_accessor.method = method;
10282 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10283 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10285 res = mono_mb_create_and_cache_full (cache, method,
10286 mb, sig, sig->param_count + 16,
10295 mono_marshal_alloc (gulong size, MonoError *error)
10299 mono_error_init (error);
10302 res = CoTaskMemAlloc (size);
10304 res = g_try_malloc ((gulong)size);
10306 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10311 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10313 ves_icall_marshal_alloc (gulong size)
10316 void *ret = mono_marshal_alloc (size, &error);
10317 if (!mono_error_ok (&error)) {
10318 mono_error_set_pending_exception (&error);
10326 mono_marshal_free (gpointer ptr)
10329 CoTaskMemFree (ptr);
10336 mono_marshal_free_array (gpointer *ptr, int size)
10343 for (i = 0; i < size; i++)
10349 mono_marshal_string_to_utf16 (MonoString *s)
10351 return s ? mono_string_chars (s) : NULL;
10354 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10356 mono_marshal_string_to_utf16_copy (MonoString *s)
10362 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10363 if (!mono_error_ok (&error)) {
10364 mono_error_set_pending_exception (&error);
10367 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10368 res [mono_string_length (s)] = 0;
10374 * mono_marshal_set_last_error:
10376 * This function is invoked to set the last error value from a P/Invoke call
10377 * which has SetLastError set.
10380 mono_marshal_set_last_error (void)
10383 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10385 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10390 mono_marshal_set_last_error_windows (int error)
10393 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10398 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10399 gpointer dest, gint32 length)
10404 MONO_CHECK_ARG_NULL (src,);
10405 MONO_CHECK_ARG_NULL (dest,);
10407 if (src->obj.vtable->klass->rank != 1) {
10408 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10411 if (start_index < 0) {
10412 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10416 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10419 if (start_index + length > mono_array_length (src)) {
10420 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10424 element_size = mono_array_element_size (src->obj.vtable->klass);
10426 /* no references should be involved */
10427 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10429 memcpy (dest, source_addr, length * element_size);
10433 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10434 MonoArray *dest, gint32 length)
10439 MONO_CHECK_ARG_NULL (src,);
10440 MONO_CHECK_ARG_NULL (dest,);
10442 if (dest->obj.vtable->klass->rank != 1) {
10443 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10446 if (start_index < 0) {
10447 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10451 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10454 if (start_index + length > mono_array_length (dest)) {
10455 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10458 element_size = mono_array_element_size (dest->obj.vtable->klass);
10460 /* no references should be involved */
10461 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10463 memcpy (dest_addr, src, length * element_size);
10467 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10472 return mono_string_new (mono_domain_get (), ptr);
10476 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10479 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10482 return mono_string_new_len (mono_domain_get (), ptr, len);
10487 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10490 MonoString *res = NULL;
10491 MonoDomain *domain = mono_domain_get ();
10501 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10502 if (!mono_error_ok (&error)) {
10503 mono_error_set_pending_exception (&error);
10510 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10513 MonoString *res = NULL;
10514 MonoDomain *domain = mono_domain_get ();
10516 mono_error_init (&error);
10520 mono_error_set_argument_null (&error, "ptr", "");
10522 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10525 if (!mono_error_ok (&error))
10526 mono_error_set_pending_exception (&error);
10531 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10533 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10537 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10543 MONO_CHECK_ARG_NULL (rtype, 0);
10545 type = rtype->type;
10546 klass = mono_class_from_mono_type (type);
10547 if (!mono_class_init (klass)) {
10548 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10552 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10554 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10555 return sizeof (gpointer);
10556 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10558 MonoException *exc;
10560 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10561 exc = mono_get_exception_argument ("t", msg);
10563 mono_set_pending_exception (exc);
10567 return mono_class_native_size (klass, NULL);
10571 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10574 MonoMethod *method;
10577 MONO_CHECK_ARG_NULL (obj,);
10578 MONO_CHECK_ARG_NULL (dst,);
10580 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10584 pa [2] = &delete_old;
10586 mono_runtime_invoke_checked (method, NULL, pa, &error);
10587 if (!mono_error_ok (&error))
10588 mono_error_set_pending_exception (&error);
10592 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10594 MonoMethod *method;
10597 mono_error_init (error);
10599 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10604 mono_runtime_invoke_checked (method, NULL, pa, error);
10608 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10613 MONO_CHECK_ARG_NULL (src,);
10614 MONO_CHECK_ARG_NULL (dst,);
10616 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10618 if (t->type == MONO_TYPE_VALUETYPE) {
10619 MonoException *exc;
10622 tmp = g_strdup_printf ("Destination is a boxed value type.");
10623 exc = mono_get_exception_argument ("dst", tmp);
10626 mono_set_pending_exception (exc);
10630 ptr_to_structure (src, dst, &error);
10631 if (!mono_error_ok (&error))
10632 mono_error_set_pending_exception (&error);
10636 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10640 MonoDomain *domain = mono_domain_get ();
10645 MONO_CHECK_ARG_NULL (type, NULL);
10647 klass = mono_class_from_mono_type (type->type);
10648 if (!mono_class_init (klass)) {
10649 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10653 res = mono_object_new_checked (domain, klass, &error);
10654 if (!mono_error_ok (&error)) {
10655 mono_error_set_pending_exception (&error);
10659 ptr_to_structure (src, res, &error);
10660 if (!mono_error_ok (&error)) {
10661 mono_error_set_pending_exception (&error);
10669 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10671 MonoMarshalType *info;
10674 int match_index = -1;
10676 MONO_CHECK_ARG_NULL (type, 0);
10677 MONO_CHECK_ARG_NULL (field_name, 0);
10679 fname = mono_string_to_utf8 (field_name);
10680 klass = mono_class_from_mono_type (type->type);
10681 if (!mono_class_init (klass)) {
10682 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10686 while (klass && match_index == -1) {
10687 MonoClassField* field;
10689 gpointer iter = NULL;
10690 while ((field = mono_class_get_fields (klass, &iter))) {
10691 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10693 if (!strcmp (fname, mono_field_get_name (field))) {
10700 if (match_index == -1)
10701 klass = klass->parent;
10706 if(match_index == -1) {
10707 MonoException* exc;
10710 /* Get back original class instance */
10711 klass = mono_class_from_mono_type (type->type);
10713 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10714 exc = mono_get_exception_argument ("fieldName", tmp);
10717 mono_set_pending_exception ((MonoException*)exc);
10721 info = mono_marshal_load_type_info (klass);
10722 return info->fields [match_index].offset;
10726 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10731 tres = mono_string_to_utf8 (string);
10735 len = strlen (tres) + 1;
10736 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10737 memcpy (ret, tres, len);
10742 return mono_string_to_utf8 (string);
10747 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10749 if (string == NULL)
10752 #ifdef TARGET_WIN32
10753 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10754 ((mono_string_length (string) + 1) * 2);
10756 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10758 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10759 res [mono_string_length (string)] = 0;
10765 mono_struct_delete_old (MonoClass *klass, char *ptr)
10767 MonoMarshalType *info;
10770 info = mono_marshal_load_type_info (klass);
10772 for (i = 0; i < info->num_fields; i++) {
10773 MonoMarshalConv conv;
10774 MonoType *ftype = info->fields [i].field->type;
10777 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10780 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10781 klass->unicode, &conv);
10783 cpos = ptr + info->fields [i].offset;
10786 case MONO_MARSHAL_CONV_NONE:
10787 if (MONO_TYPE_ISSTRUCT (ftype)) {
10788 mono_struct_delete_old (ftype->data.klass, cpos);
10792 case MONO_MARSHAL_CONV_STR_LPWSTR:
10793 /* We assume this field points inside a MonoString */
10795 case MONO_MARSHAL_CONV_STR_LPTSTR:
10796 #ifdef TARGET_WIN32
10797 /* We assume this field points inside a MonoString
10801 case MONO_MARSHAL_CONV_STR_LPSTR:
10802 case MONO_MARSHAL_CONV_STR_BSTR:
10803 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10804 case MONO_MARSHAL_CONV_STR_TBSTR:
10805 mono_marshal_free (*(gpointer *)cpos);
10815 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10819 MONO_CHECK_ARG_NULL (src,);
10820 MONO_CHECK_ARG_NULL (type,);
10822 klass = mono_class_from_mono_type (type->type);
10823 if (!mono_class_init (klass)) {
10824 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10828 mono_struct_delete_old (klass, (char *)src);
10832 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10835 size_t s = (size_t)size;
10838 /* This returns a valid pointer for size 0 on MS.NET */
10842 res = GlobalAlloc (GMEM_FIXED, s);
10844 res = g_try_malloc (s);
10847 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10855 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10858 size_t s = (size_t)size;
10861 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10866 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10868 res = g_try_realloc (ptr, s);
10871 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10879 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10889 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10894 res = CoTaskMemAlloc (size);
10896 if ((gulong)size == 0)
10897 /* This returns a valid pointer for size 0 on MS.NET */
10900 res = g_try_malloc ((gulong)size);
10903 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10910 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10913 CoTaskMemFree (ptr);
10920 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10925 res = CoTaskMemRealloc (ptr, size);
10927 res = g_try_realloc (ptr, (gulong)size);
10930 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10937 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10939 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10943 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10945 MonoClass *klass = mono_type_get_class (type->type);
10946 if (!mono_class_init (klass)) {
10947 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10951 return mono_ftnptr_to_delegate (klass, ftn);
10955 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10957 return mono_delegate_to_ftnptr (delegate);
10961 * mono_marshal_is_loading_type_info:
10963 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10967 mono_marshal_is_loading_type_info (MonoClass *klass)
10969 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10971 return g_slist_find (loads_list, klass) != NULL;
10975 * mono_marshal_load_type_info:
10977 * Initialize klass->marshal_info using information from metadata. This function can
10978 * recursively call itself, and the caller is responsible to avoid that by calling
10979 * mono_marshal_is_loading_type_info () beforehand.
10981 * LOCKING: Acquires the loader lock.
10984 mono_marshal_load_type_info (MonoClass* klass)
10987 guint32 native_size = 0, min_align = 1, packing;
10988 MonoMarshalType *info;
10989 MonoClassField* field;
10992 GSList *loads_list;
10994 g_assert (klass != NULL);
10996 if (klass->marshal_info)
10997 return klass->marshal_info;
10999 if (!klass->inited)
11000 mono_class_init (klass);
11002 if (klass->marshal_info)
11003 return klass->marshal_info;
11006 * This function can recursively call itself, so we keep the list of classes which are
11007 * under initialization in a TLS list.
11009 g_assert (!mono_marshal_is_loading_type_info (klass));
11010 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11011 loads_list = g_slist_prepend (loads_list, klass);
11012 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11015 while ((field = mono_class_get_fields (klass, &iter))) {
11016 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11018 if (mono_field_is_deleted (field))
11023 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11025 /* The mempool is protected by the loader lock */
11026 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11027 info->num_fields = count;
11029 /* Try to find a size for this type in metadata */
11030 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11032 if (klass->parent) {
11033 int parent_size = mono_class_native_size (klass->parent, NULL);
11035 /* Add parent size to real size */
11036 native_size += parent_size;
11037 info->native_size = parent_size;
11040 packing = klass->packing_size ? klass->packing_size : 8;
11043 while ((field = mono_class_get_fields (klass, &iter))) {
11047 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11050 if (mono_field_is_deleted (field))
11052 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11053 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11054 NULL, NULL, &info->fields [j].mspec);
11056 info->fields [j].field = field;
11058 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11059 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11060 /* This field is a hack inserted by MCS to empty structures */
11065 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11066 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11067 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11068 &align, TRUE, klass->unicode);
11069 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11070 min_align = MAX (align, min_align);
11071 info->fields [j].offset = info->native_size;
11072 info->fields [j].offset += align - 1;
11073 info->fields [j].offset &= ~(align - 1);
11074 info->native_size = info->fields [j].offset + size;
11076 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11077 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11078 &align, TRUE, klass->unicode);
11079 min_align = MAX (align, min_align);
11080 info->fields [j].offset = field->offset - sizeof (MonoObject);
11081 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11087 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11088 info->native_size = MAX (native_size, info->native_size);
11090 * If the provided Size is equal or larger than the calculated size, and there
11091 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11093 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11094 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11097 min_align = MIN (min_align, packing);
11101 if (info->native_size & (min_align - 1)) {
11102 info->native_size += min_align - 1;
11103 info->native_size &= ~(min_align - 1);
11106 info->min_align = min_align;
11108 /* Update the class's blittable info, if the layouts don't match */
11109 if (info->native_size != mono_class_value_size (klass, NULL))
11110 klass->blittable = FALSE;
11112 /* If this is an array type, ensure that we have element info */
11113 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11114 mono_marshal_load_type_info (klass->element_class);
11117 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11118 loads_list = g_slist_remove (loads_list, klass);
11119 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11121 mono_marshal_lock ();
11122 if (!klass->marshal_info) {
11123 /*We do double-checking locking on marshal_info */
11124 mono_memory_barrier ();
11125 klass->marshal_info = info;
11127 mono_marshal_unlock ();
11129 return klass->marshal_info;
11133 * mono_class_native_size:
11136 * Returns: the native size of an object instance (when marshaled
11137 * to unmanaged code)
11140 mono_class_native_size (MonoClass *klass, guint32 *align)
11142 if (!klass->marshal_info) {
11143 if (mono_marshal_is_loading_type_info (klass)) {
11148 mono_marshal_load_type_info (klass);
11153 *align = klass->marshal_info->min_align;
11155 return klass->marshal_info->native_size;
11159 * mono_type_native_stack_size:
11160 * @t: the type to return the size it uses on the stack
11162 * Returns: the number of bytes required to hold an instance of this
11163 * type on the native stack
11166 mono_type_native_stack_size (MonoType *t, guint32 *align)
11170 g_assert (t != NULL);
11176 *align = sizeof (gpointer);
11177 return sizeof (gpointer);
11181 case MONO_TYPE_BOOLEAN:
11182 case MONO_TYPE_CHAR:
11193 case MONO_TYPE_STRING:
11194 case MONO_TYPE_OBJECT:
11195 case MONO_TYPE_CLASS:
11196 case MONO_TYPE_SZARRAY:
11197 case MONO_TYPE_PTR:
11198 case MONO_TYPE_FNPTR:
11199 case MONO_TYPE_ARRAY:
11200 *align = sizeof (gpointer);
11201 return sizeof (gpointer);
11206 *align = MONO_ABI_ALIGNOF (double);
11210 *align = MONO_ABI_ALIGNOF (gint64);
11212 case MONO_TYPE_GENERICINST:
11213 if (!mono_type_generic_inst_is_valuetype (t)) {
11214 *align = sizeof (gpointer);
11215 return sizeof (gpointer);
11218 case MONO_TYPE_TYPEDBYREF:
11219 case MONO_TYPE_VALUETYPE: {
11221 MonoClass *klass = mono_class_from_mono_type (t);
11223 if (klass->enumtype)
11224 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11226 size = mono_class_native_size (klass, align);
11227 *align = *align + 3;
11237 g_error ("type 0x%02x unknown", t->type);
11243 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11244 gboolean as_field, gboolean unicode)
11246 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11249 switch (native_type) {
11250 case MONO_NATIVE_BOOLEAN:
11253 case MONO_NATIVE_I1:
11254 case MONO_NATIVE_U1:
11257 case MONO_NATIVE_I2:
11258 case MONO_NATIVE_U2:
11259 case MONO_NATIVE_VARIANTBOOL:
11262 case MONO_NATIVE_I4:
11263 case MONO_NATIVE_U4:
11264 case MONO_NATIVE_ERROR:
11267 case MONO_NATIVE_I8:
11268 case MONO_NATIVE_U8:
11269 *align = MONO_ABI_ALIGNOF (gint64);
11271 case MONO_NATIVE_R4:
11274 case MONO_NATIVE_R8:
11275 *align = MONO_ABI_ALIGNOF (double);
11277 case MONO_NATIVE_INT:
11278 case MONO_NATIVE_UINT:
11279 case MONO_NATIVE_LPSTR:
11280 case MONO_NATIVE_LPWSTR:
11281 case MONO_NATIVE_LPTSTR:
11282 case MONO_NATIVE_BSTR:
11283 case MONO_NATIVE_ANSIBSTR:
11284 case MONO_NATIVE_TBSTR:
11285 case MONO_NATIVE_LPARRAY:
11286 case MONO_NATIVE_SAFEARRAY:
11287 case MONO_NATIVE_IUNKNOWN:
11288 case MONO_NATIVE_IDISPATCH:
11289 case MONO_NATIVE_INTERFACE:
11290 case MONO_NATIVE_ASANY:
11291 case MONO_NATIVE_FUNC:
11292 case MONO_NATIVE_LPSTRUCT:
11293 *align = MONO_ABI_ALIGNOF (gpointer);
11294 return sizeof (gpointer);
11295 case MONO_NATIVE_STRUCT:
11296 klass = mono_class_from_mono_type (type);
11297 if (klass == mono_defaults.object_class &&
11298 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11302 return mono_class_native_size (klass, align);
11303 case MONO_NATIVE_BYVALTSTR: {
11304 int esize = unicode ? 2: 1;
11307 return mspec->data.array_data.num_elem * esize;
11309 case MONO_NATIVE_BYVALARRAY: {
11310 // FIXME: Have to consider ArraySubType
11312 klass = mono_class_from_mono_type (type);
11313 if (klass->element_class == mono_defaults.char_class) {
11314 esize = unicode ? 2 : 1;
11317 esize = mono_class_native_size (klass->element_class, align);
11320 return mspec->data.array_data.num_elem * esize;
11322 case MONO_NATIVE_CUSTOM:
11323 *align = sizeof (gpointer);
11324 return sizeof (gpointer);
11326 case MONO_NATIVE_CURRENCY:
11327 case MONO_NATIVE_VBBYREFSTR:
11329 g_error ("native type %02x not implemented", native_type);
11332 g_assert_not_reached ();
11336 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11338 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11347 t = &o->vtable->klass->byval_arg;
11351 case MONO_TYPE_PTR:
11354 case MONO_TYPE_BOOLEAN:
11357 case MONO_TYPE_CHAR:
11362 return mono_object_unbox (o);
11364 case MONO_TYPE_STRING:
11365 switch (string_encoding) {
11366 case MONO_NATIVE_LPWSTR:
11367 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11369 case MONO_NATIVE_LPSTR:
11370 return mono_string_to_lpstr ((MonoString*)o);
11373 g_warning ("marshaling conversion %d not implemented", string_encoding);
11374 g_assert_not_reached ();
11377 case MONO_TYPE_CLASS:
11378 case MONO_TYPE_VALUETYPE: {
11379 MonoMethod *method;
11382 MonoBoolean delete_old = FALSE;
11384 klass = t->data.klass;
11386 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11389 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11390 klass->blittable || klass->enumtype))
11391 return mono_object_unbox (o);
11393 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11394 if (!mono_error_ok (&error)) {
11395 mono_error_set_pending_exception (&error);
11399 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11400 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11404 pa [2] = &delete_old;
11406 mono_runtime_invoke_checked (method, NULL, pa, &error);
11407 if (!mono_error_ok (&error)) {
11408 mono_error_set_pending_exception (&error);
11418 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11422 /* This is a JIT icall, it sets the pending exception */
11424 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11433 t = &o->vtable->klass->byval_arg;
11435 case MONO_TYPE_STRING:
11436 switch (string_encoding) {
11437 case MONO_NATIVE_LPWSTR:
11438 case MONO_NATIVE_LPSTR:
11439 mono_marshal_free (ptr);
11442 g_warning ("marshaling conversion %d not implemented", string_encoding);
11443 g_assert_not_reached ();
11446 case MONO_TYPE_CLASS:
11447 case MONO_TYPE_VALUETYPE: {
11448 klass = t->data.klass;
11450 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11451 klass->blittable || klass->enumtype))
11454 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11455 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11461 mono_runtime_invoke_checked (method, NULL, pa, &error);
11462 if (!mono_error_ok (&error)) {
11463 mono_error_set_pending_exception (&error);
11468 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11469 mono_struct_delete_old (klass, (char *)ptr);
11472 mono_marshal_free (ptr);
11481 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11483 MonoMethodSignature *sig, *csig;
11484 MonoMethodBuilder *mb;
11489 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11490 mb->method->slot = -1;
11492 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11493 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11495 sig = mono_method_signature (method);
11496 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11497 csig->generic_param_count = 0;
11499 #ifndef DISABLE_JIT
11500 mono_mb_emit_ldarg (mb, 0);
11501 for (i = 0; i < csig->param_count; i++)
11502 mono_mb_emit_ldarg (mb, i + 1);
11503 mono_mb_emit_managed_call (mb, method, NULL);
11504 mono_mb_emit_byte (mb, CEE_RET);
11506 /* We can corlib internal methods */
11507 mb->skip_visibility = TRUE;
11509 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11510 info->d.generic_array_helper.method = method;
11511 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11519 * The mono_win32_compat_* functions are implementations of inline
11520 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11521 * although not exported by kernel32.
11523 * We map the appropiate kernel32 entries to these functions using
11524 * dllmaps declared in the global etc/mono/config.
11528 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11530 if (!dest || !source)
11533 memcpy (dest, source, length);
11537 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11539 memset (dest, fill, length);
11543 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11545 if (!dest || !source)
11548 memmove (dest, source, length);
11552 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11554 memset (dest, 0, length);
11558 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11563 for (i = 0; i < len; ++i)
11567 g_assert (i < len);
11570 while (byte && !(byte & 1))
11572 g_assert (byte == 1);
11575 *bitmask = buf [i];
11579 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11581 MonoMethodBuilder *mb;
11582 MonoMethodSignature *sig, *csig;
11583 MonoExceptionClause *clause;
11588 int i, param_count, sig_size, pos_leave;
11589 int coop_gc_var, coop_gc_dummy_local;
11593 klass = method->klass;
11594 image = method->klass->image;
11596 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11598 if ((res = mono_marshal_find_in_cache (cache, method)))
11601 sig = mono_method_signature (method);
11602 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11604 /* add "this" and exception param */
11605 param_count = sig->param_count + sig->hasthis + 1;
11607 /* dup & extend signature */
11608 csig = mono_metadata_signature_alloc (image, param_count);
11609 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11610 memcpy (csig, sig, sig_size);
11611 csig->param_count = param_count;
11614 csig->call_convention = MONO_CALL_DEFAULT;
11616 if (sig->hasthis) {
11618 csig->params [0] = &klass->byval_arg;
11619 /* move params up by one */
11620 for (i = 0; i < sig->param_count; i++)
11621 csig->params [i + 1] = sig->params [i];
11624 /* setup exception param as byref+[out] */
11625 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11626 &mono_defaults.exception_class->byval_arg);
11627 csig->params [param_count - 1]->byref = 1;
11628 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11630 /* convert struct return to object */
11631 if (MONO_TYPE_ISSTRUCT (sig->ret))
11632 csig->ret = &mono_defaults.object_class->byval_arg;
11634 #ifndef DISABLE_JIT
11635 /* local 0 (temp for exception object) */
11636 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11638 /* local 1 (temp for result) */
11639 if (!MONO_TYPE_IS_VOID (sig->ret))
11640 mono_mb_add_local (mb, sig->ret);
11642 if (mono_threads_is_coop_enabled ()) {
11643 /* local 4, the local to be used when calling the reset_blocking funcs */
11644 /* tons of code hardcode 3 to be the return var */
11645 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11646 /* local 5, the local used to get a stack address for suspend funcs */
11647 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11650 /* clear exception arg */
11651 mono_mb_emit_ldarg (mb, param_count - 1);
11652 mono_mb_emit_byte (mb, CEE_LDNULL);
11653 mono_mb_emit_byte (mb, CEE_STIND_REF);
11655 if (mono_threads_is_coop_enabled ()) {
11656 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11657 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11658 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11659 mono_mb_emit_stloc (mb, coop_gc_var);
11663 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11664 clause->try_offset = mono_mb_get_label (mb);
11666 /* push method's args */
11667 for (i = 0; i < param_count - 1; i++) {
11671 mono_mb_emit_ldarg (mb, i);
11673 /* get the byval type of the param */
11674 klass = mono_class_from_mono_type (csig->params [i]);
11675 type = &klass->byval_arg;
11677 /* unbox struct args */
11678 if (MONO_TYPE_ISSTRUCT (type)) {
11679 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11681 /* byref args & and the "this" arg must remain a ptr.
11682 Otherwise make a copy of the value type */
11683 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11684 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11686 csig->params [i] = &mono_defaults.object_class->byval_arg;
11691 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11692 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11694 mono_mb_emit_op (mb, CEE_CALL, method);
11696 /* save result at local 1 */
11697 if (!MONO_TYPE_IS_VOID (sig->ret))
11698 mono_mb_emit_stloc (mb, 1);
11700 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11703 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11704 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11705 clause->data.catch_class = mono_defaults.object_class;
11707 clause->handler_offset = mono_mb_get_label (mb);
11709 /* store exception at local 0 */
11710 mono_mb_emit_stloc (mb, 0);
11711 mono_mb_emit_ldarg (mb, param_count - 1);
11712 mono_mb_emit_ldloc (mb, 0);
11713 mono_mb_emit_byte (mb, CEE_STIND_REF);
11714 mono_mb_emit_branch (mb, CEE_LEAVE);
11716 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11718 mono_mb_set_clauses (mb, 1, clause);
11720 mono_mb_patch_branch (mb, pos_leave);
11723 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11724 mono_mb_emit_ldloc (mb, 1);
11726 /* box the return value */
11727 if (MONO_TYPE_ISSTRUCT (sig->ret))
11728 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11731 if (mono_threads_is_coop_enabled ()) {
11732 /* XXX merge reset_blocking_end with detach */
11733 mono_mb_emit_ldloc (mb, coop_gc_var);
11734 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11735 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11738 mono_mb_emit_byte (mb, CEE_RET);
11741 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11748 * mono_marshal_free_dynamic_wrappers:
11750 * Free wrappers of the dynamic method METHOD.
11753 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11755 MonoImage *image = method->klass->image;
11757 g_assert (method_is_dynamic (method));
11759 /* This could be called during shutdown */
11760 if (marshal_mutex_initialized)
11761 mono_marshal_lock ();
11763 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11764 * they could be shared with other methods ?
11766 if (image->wrapper_caches.runtime_invoke_direct_cache)
11767 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11768 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11769 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11770 // FIXME: Need to clear the caches in other images as well
11771 if (image->delegate_bound_static_invoke_cache)
11772 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11774 if (marshal_mutex_initialized)
11775 mono_marshal_unlock ();