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 (mono_domain_get (), mono_defaults.int_class, &ftn);
524 memset (&piinfo, 0, sizeof (piinfo));
525 parse_unmanaged_function_pointer_attr (klass, &piinfo);
527 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
528 mono_method_get_marshal_info (invoke, mspecs);
529 /* Freed below so don't alloc from mempool */
530 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
533 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
536 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
538 mono_metadata_free_marshal_spec (mspecs [i]);
543 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
544 if (!mono_error_ok (&error)) {
545 mono_error_set_pending_exception (&error);
548 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
551 if (d->object.vtable->domain != mono_domain_get ()) {
552 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
560 mono_delegate_free_ftnptr (MonoDelegate *delegate)
565 delegate_hash_table_remove (delegate);
567 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
569 if (!delegate->target) {
570 /* The wrapper method is shared between delegates -> no need to free it */
579 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
582 method = mono_jit_info_get_method (ji);
583 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
585 /*the target gchandle is the first entry after size and the wrapper itself.*/
586 gchandle = GPOINTER_TO_UINT (method_data [2]);
589 mono_gchandle_free (gchandle);
591 mono_runtime_free_method (mono_object_domain (delegate), method);
596 mono_string_from_byvalstr (const char *data, int max_len)
598 MonoDomain *domain = mono_domain_get ();
604 while (len < max_len - 1 && data [len])
607 return mono_string_new_len (domain, data, len);
610 /* This is a JIT icall, it sets the pending exception and return NULL on error */
612 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
615 MonoString *res = NULL;
616 MonoDomain *domain = mono_domain_get ();
622 while (data [len]) len++;
624 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
625 if (!mono_error_ok (&error)) {
626 mono_error_set_pending_exception (&error);
633 mono_array_to_savearray (MonoArray *array)
638 g_assert_not_reached ();
643 mono_array_to_lparray (MonoArray *array)
646 gpointer *nativeArray = NULL;
647 int nativeArraySize = 0;
657 klass = array->obj.vtable->klass;
659 switch (klass->element_class->byval_arg.type) {
661 g_assert_not_reached ();
663 case MONO_TYPE_CLASS:
664 nativeArraySize = array->max_length;
665 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
666 for(i = 0; i < nativeArraySize; ++i)
667 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
670 case MONO_TYPE_BOOLEAN:
683 case MONO_TYPE_VALUETYPE:
687 case MONO_TYPE_GENERICINST:
688 case MONO_TYPE_OBJECT:
689 case MONO_TYPE_ARRAY:
690 case MONO_TYPE_SZARRAY:
691 case MONO_TYPE_STRING:
693 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
694 g_assert_not_reached ();
697 return array->vector;
701 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
712 klass = array->obj.vtable->klass;
714 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
715 for(i = 0; i < array->max_length; ++i)
716 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
723 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
725 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
727 if (elclass == mono_defaults.byte_class) {
728 GError *error = NULL;
732 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
735 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
739 g_error_free (error);
742 g_assert_not_reached ();
746 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
748 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
751 /* This is a JIT icall, it sets the pending exception and returns on error */
753 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
755 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
757 if (elclass == mono_defaults.byte_class) {
759 GError *error = NULL;
761 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
763 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
764 g_error_free (error);
768 memcpy (native_arr, as, MIN (strlen (as), elnum));
771 g_assert_not_reached ();
776 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
778 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
781 static MonoStringBuilder *
782 mono_string_builder_new (int starting_string_length)
784 static MonoClass *string_builder_class;
785 static MonoMethod *sb_ctor;
786 static void *args [1];
789 int initial_len = starting_string_length;
795 MonoMethodDesc *desc;
798 string_builder_class = mono_class_get_string_builder_class ();
799 g_assert (string_builder_class);
800 desc = mono_method_desc_new (":.ctor(int)", FALSE);
801 m = mono_method_desc_search_in_class (desc, string_builder_class);
803 mono_method_desc_free (desc);
804 mono_memory_barrier ();
808 // We make a new array in the _to_builder function, so this
809 // array will always be garbage collected.
810 args [0] = &initial_len;
812 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
813 mono_error_assert_ok (&error);
816 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
817 g_assert (exc == NULL);
818 mono_error_assert_ok (&error);
820 g_assert (sb->chunkChars->max_length >= initial_len);
826 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
828 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
829 gunichar2 *charSrc = (gunichar2 *)text;
830 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
832 sb->chunkLength = string_len;
838 mono_string_utf16_to_builder2 (gunichar2 *text)
844 for (len = 0; text [len] != 0; ++len);
846 MonoStringBuilder *sb = mono_string_builder_new (len);
847 mono_string_utf16_to_builder (sb, text);
853 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
858 int len = strlen (text);
859 if (len > mono_string_builder_capacity (sb))
860 len = mono_string_builder_capacity (sb);
862 GError *error = NULL;
864 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
867 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
868 mono_string_utf16_to_builder_copy (sb, ut, copied);
870 g_error_free (error);
876 mono_string_utf8_to_builder2 (char *text)
881 int len = strlen (text);
882 MonoStringBuilder *sb = mono_string_builder_new (len);
883 mono_string_utf8_to_builder (sb, text);
890 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
896 for (len = 0; text [len] != 0; ++len);
898 if (len > mono_string_builder_capacity (sb))
899 len = mono_string_builder_capacity (sb);
901 mono_string_utf16_to_builder_copy (sb, text, len);
905 * mono_string_builder_to_utf8:
906 * @sb: the string builder
908 * Converts to utf8 the contents of the MonoStringBuilder.
910 * Returns: a utf8 string with the contents of the StringBuilder.
912 * The return value must be released with g_free.
914 * This is a JIT icall, it sets the pending exception and returns NULL on error.
917 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
920 GError *gerror = NULL;
925 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
927 guint str_len = mono_string_builder_string_length (sb);
929 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
932 g_error_free (gerror);
934 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
937 guint len = mono_string_builder_capacity (sb) + 1;
938 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
939 if (!mono_error_ok (&error)) {
942 mono_error_set_pending_exception (&error);
946 g_assert (str_len < len);
947 memcpy (res, tmp, str_len * sizeof (gchar));
957 * mono_string_builder_to_utf16:
958 * @sb: the string builder
960 * Converts to utf16 the contents of the MonoStringBuilder.
962 * Returns: a utf16 string with the contents of the StringBuilder.
964 * The return value must not be freed.
965 * This is a JIT icall, it sets the pending exception and returns NULL on error.
968 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
975 g_assert (sb->chunkChars);
977 guint len = mono_string_builder_capacity (sb);
982 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
983 if (!mono_error_ok (&error)) {
984 mono_error_set_pending_exception (&error);
993 MonoStringBuilder* chunk = sb;
995 if (chunk->chunkLength > 0) {
996 // Check that we will not overrun our boundaries.
997 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
999 if (chunk->chunkLength <= len) {
1000 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1002 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1005 len -= chunk->chunkLength;
1007 chunk = chunk->chunkPrevious;
1008 } while (chunk != NULL);
1013 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1015 mono_string_to_lpstr (MonoString *s)
1020 GError *error = NULL;
1026 as = CoTaskMemAlloc (1);
1031 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1033 MonoException *exc = mono_get_exception_argument ("string", error->message);
1034 g_error_free (error);
1035 mono_set_pending_exception (exc);
1038 as = CoTaskMemAlloc (len + 1);
1039 memcpy (as, tmp, len + 1);
1044 return mono_string_to_utf8 (s);
1049 mono_string_to_ansibstr (MonoString *string_obj)
1051 g_error ("UnmanagedMarshal.BStr is not implemented.");
1056 * mono_string_to_byvalstr:
1057 * @dst: Where to store the null-terminated utf8 decoded string.
1058 * @src: the MonoString to copy.
1059 * @size: the maximum number of bytes to copy.
1061 * Copies the MonoString pointed to by @src as a utf8 string
1062 * into @dst, it copies at most @size bytes into the destination.
1065 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1070 g_assert (dst != NULL);
1071 g_assert (size > 0);
1073 memset (dst, 0, size);
1077 s = mono_string_to_utf8 (src);
1078 len = MIN (size, strlen (s));
1081 memcpy (dst, s, len);
1086 * mono_string_to_byvalwstr:
1087 * @dst: Where to store the null-terminated utf16 decoded string.
1088 * @src: the MonoString to copy.
1089 * @size: the maximum number of bytes to copy.
1091 * Copies the MonoString pointed to by @src as a utf16 string into
1092 * @dst, it copies at most @size bytes into the destination (including
1093 * a terminating 16-bit zero terminator).
1096 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1100 g_assert (dst != NULL);
1101 g_assert (size > 1);
1104 memset (dst, 0, size * 2);
1108 len = MIN (size, (mono_string_length (src)));
1109 memcpy (dst, mono_string_chars (src), size * 2);
1110 if (size <= mono_string_length (src))
1112 *((gunichar2 *) dst + len) = 0;
1116 mono_string_new_len_wrapper (const char *text, guint length)
1118 return mono_string_new_len (mono_domain_get (), text, length);
1124 * mono_mb_emit_exception_marshal_directive:
1126 * This function assumes ownership of MSG, which should be malloc-ed.
1129 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1134 s = mono_image_strdup (mb->method->klass->image, msg);
1139 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1142 #endif /* !DISABLE_JIT */
1145 mono_type_to_ldind (MonoType *type)
1151 switch (type->type) {
1153 return CEE_LDIND_I1;
1155 case MONO_TYPE_BOOLEAN:
1156 return CEE_LDIND_U1;
1158 return CEE_LDIND_I2;
1160 case MONO_TYPE_CHAR:
1161 return CEE_LDIND_U2;
1163 return CEE_LDIND_I4;
1165 return CEE_LDIND_U4;
1169 case MONO_TYPE_FNPTR:
1171 case MONO_TYPE_CLASS:
1172 case MONO_TYPE_STRING:
1173 case MONO_TYPE_OBJECT:
1174 case MONO_TYPE_SZARRAY:
1175 case MONO_TYPE_ARRAY:
1176 return CEE_LDIND_REF;
1179 return CEE_LDIND_I8;
1181 return CEE_LDIND_R4;
1183 return CEE_LDIND_R8;
1184 case MONO_TYPE_VALUETYPE:
1185 if (type->data.klass->enumtype) {
1186 type = mono_class_enum_basetype (type->data.klass);
1190 case MONO_TYPE_TYPEDBYREF:
1192 case MONO_TYPE_GENERICINST:
1193 type = &type->data.generic_class->container_class->byval_arg;
1196 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1202 mono_type_to_stind (MonoType *type)
1208 switch (type->type) {
1211 case MONO_TYPE_BOOLEAN:
1212 return CEE_STIND_I1;
1215 case MONO_TYPE_CHAR:
1216 return CEE_STIND_I2;
1219 return CEE_STIND_I4;
1223 case MONO_TYPE_FNPTR:
1225 case MONO_TYPE_CLASS:
1226 case MONO_TYPE_STRING:
1227 case MONO_TYPE_OBJECT:
1228 case MONO_TYPE_SZARRAY:
1229 case MONO_TYPE_ARRAY:
1230 return CEE_STIND_REF;
1233 return CEE_STIND_I8;
1235 return CEE_STIND_R4;
1237 return CEE_STIND_R8;
1238 case MONO_TYPE_VALUETYPE:
1239 if (type->data.klass->enumtype) {
1240 type = mono_class_enum_basetype (type->data.klass);
1244 case MONO_TYPE_TYPEDBYREF:
1246 case MONO_TYPE_GENERICINST:
1247 type = &type->data.generic_class->container_class->byval_arg;
1250 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1258 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1261 case MONO_MARSHAL_CONV_BOOL_I4:
1262 mono_mb_emit_ldloc (mb, 1);
1263 mono_mb_emit_ldloc (mb, 0);
1264 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1265 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1266 mono_mb_emit_byte (mb, 3);
1267 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1268 mono_mb_emit_byte (mb, CEE_BR_S);
1269 mono_mb_emit_byte (mb, 1);
1270 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1271 mono_mb_emit_byte (mb, CEE_STIND_I1);
1273 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1274 mono_mb_emit_ldloc (mb, 1);
1275 mono_mb_emit_ldloc (mb, 0);
1276 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1277 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1278 mono_mb_emit_byte (mb, 3);
1279 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1280 mono_mb_emit_byte (mb, CEE_BR_S);
1281 mono_mb_emit_byte (mb, 1);
1282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1283 mono_mb_emit_byte (mb, CEE_STIND_I1);
1285 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1286 MonoClass *eklass = NULL;
1289 if (type->type == MONO_TYPE_SZARRAY) {
1290 eklass = type->data.klass;
1292 g_assert_not_reached ();
1295 esize = mono_class_native_size (eklass, NULL);
1297 /* create a new array */
1298 mono_mb_emit_ldloc (mb, 1);
1299 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1300 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1301 mono_mb_emit_byte (mb, CEE_STIND_I);
1303 if (eklass->blittable) {
1304 /* copy the elements */
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_byte (mb, CEE_LDIND_I);
1307 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1308 mono_mb_emit_byte (mb, CEE_ADD);
1309 mono_mb_emit_ldloc (mb, 0);
1310 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1311 mono_mb_emit_byte (mb, CEE_PREFIX1);
1312 mono_mb_emit_byte (mb, CEE_CPBLK);
1315 int array_var, src_var, dst_var, index_var;
1316 guint32 label2, label3;
1318 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1319 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1320 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1323 mono_mb_emit_ldloc (mb, 1);
1324 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1325 mono_mb_emit_stloc (mb, array_var);
1327 /* save the old src pointer */
1328 mono_mb_emit_ldloc (mb, 0);
1329 mono_mb_emit_stloc (mb, src_var);
1330 /* save the old dst pointer */
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_stloc (mb, dst_var);
1334 /* Emit marshalling loop */
1335 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1336 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1337 mono_mb_emit_stloc (mb, index_var);
1340 label2 = mono_mb_get_label (mb);
1341 mono_mb_emit_ldloc (mb, index_var);
1342 mono_mb_emit_ldloc (mb, array_var);
1343 mono_mb_emit_byte (mb, CEE_LDLEN);
1344 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1346 /* src is already set */
1349 mono_mb_emit_ldloc (mb, array_var);
1350 mono_mb_emit_ldloc (mb, index_var);
1351 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1352 mono_mb_emit_stloc (mb, 1);
1354 /* Do the conversion */
1355 emit_struct_conv (mb, eklass, TRUE);
1358 mono_mb_emit_add_to_local (mb, index_var, 1);
1360 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1362 mono_mb_patch_branch (mb, label3);
1364 /* restore the old src pointer */
1365 mono_mb_emit_ldloc (mb, src_var);
1366 mono_mb_emit_stloc (mb, 0);
1367 /* restore the old dst pointer */
1368 mono_mb_emit_ldloc (mb, dst_var);
1369 mono_mb_emit_stloc (mb, 1);
1373 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1374 MonoClass *eclass = mono_defaults.char_class;
1376 /* create a new array */
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1379 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1380 mono_mb_emit_byte (mb, CEE_STIND_REF);
1382 mono_mb_emit_ldloc (mb, 1);
1383 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1384 mono_mb_emit_ldloc (mb, 0);
1385 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1386 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1389 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1390 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1391 mono_mb_emit_ldloc (mb, 1);
1392 mono_mb_emit_ldloc (mb, 0);
1393 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1394 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_ldloc (mb, 0);
1398 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1400 mono_mb_emit_byte (mb, CEE_STIND_REF);
1402 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1403 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1404 mono_mb_emit_ldloc (mb, 1);
1405 mono_mb_emit_ldloc (mb, 0);
1406 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1407 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1409 mono_mb_emit_ldloc (mb, 1);
1410 mono_mb_emit_ldloc (mb, 0);
1411 mono_mb_emit_icall (mb, mono_string_from_utf16);
1413 mono_mb_emit_byte (mb, CEE_STIND_REF);
1415 case MONO_MARSHAL_CONV_STR_LPTSTR:
1416 mono_mb_emit_ldloc (mb, 1);
1417 mono_mb_emit_ldloc (mb, 0);
1418 mono_mb_emit_byte (mb, CEE_LDIND_I);
1420 mono_mb_emit_icall (mb, mono_string_from_utf16);
1422 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1424 mono_mb_emit_byte (mb, CEE_STIND_REF);
1426 case MONO_MARSHAL_CONV_STR_LPSTR:
1427 mono_mb_emit_ldloc (mb, 1);
1428 mono_mb_emit_ldloc (mb, 0);
1429 mono_mb_emit_byte (mb, CEE_LDIND_I);
1430 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1431 mono_mb_emit_byte (mb, CEE_STIND_REF);
1433 case MONO_MARSHAL_CONV_STR_LPWSTR:
1434 mono_mb_emit_ldloc (mb, 1);
1435 mono_mb_emit_ldloc (mb, 0);
1436 mono_mb_emit_byte (mb, CEE_LDIND_I);
1437 mono_mb_emit_icall (mb, mono_string_from_utf16);
1438 mono_mb_emit_byte (mb, CEE_STIND_REF);
1440 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1441 MonoClass *klass = mono_class_from_mono_type (type);
1442 int src_var, dst_var;
1444 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1445 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1447 /* *dst = new object */
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1450 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1451 mono_mb_emit_byte (mb, CEE_STIND_REF);
1453 /* save the old src pointer */
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_stloc (mb, src_var);
1456 /* save the old dst pointer */
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_stloc (mb, dst_var);
1460 /* dst = pointer to newly created object data */
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_byte (mb, CEE_LDIND_I);
1463 mono_mb_emit_icon (mb, sizeof (MonoObject));
1464 mono_mb_emit_byte (mb, CEE_ADD);
1465 mono_mb_emit_stloc (mb, 1);
1467 emit_struct_conv (mb, klass, TRUE);
1469 /* restore the old src pointer */
1470 mono_mb_emit_ldloc (mb, src_var);
1471 mono_mb_emit_stloc (mb, 0);
1472 /* restore the old dst pointer */
1473 mono_mb_emit_ldloc (mb, dst_var);
1474 mono_mb_emit_stloc (mb, 1);
1477 case MONO_MARSHAL_CONV_DEL_FTN: {
1478 MonoClass *klass = mono_class_from_mono_type (type);
1480 mono_mb_emit_ldloc (mb, 1);
1481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1482 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1485 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1486 mono_mb_emit_byte (mb, CEE_STIND_REF);
1489 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1490 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1494 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1495 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1496 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1497 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1499 #endif /* DISABLE_COM */
1501 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1503 * Passing SafeHandles as ref does not allow the unmanaged code
1504 * to change the SafeHandle value. If the value is changed,
1505 * we should issue a diagnostic exception (NotSupportedException)
1506 * that informs the user that changes to handles in unmanaged code
1509 * Since we currently have no access to the original
1510 * SafeHandle that was used during the marshalling,
1511 * for now we just ignore this, and ignore/discard any
1512 * changes that might have happened to the handle.
1517 case MONO_MARSHAL_CONV_HANDLEREF: {
1519 * Passing HandleRefs in a struct that is ref()ed does not
1520 * copy the values back to the HandleRef
1525 case MONO_MARSHAL_CONV_STR_BSTR:
1526 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1527 case MONO_MARSHAL_CONV_STR_TBSTR:
1528 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1530 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1532 mono_mb_emit_exception_marshal_directive (mb, msg);
1539 conv_to_icall (MonoMarshalConv conv)
1542 case MONO_MARSHAL_CONV_STR_LPWSTR:
1543 return mono_marshal_string_to_utf16;
1544 case MONO_MARSHAL_CONV_LPWSTR_STR:
1545 return mono_string_from_utf16;
1546 case MONO_MARSHAL_CONV_LPTSTR_STR:
1547 return mono_string_new_wrapper;
1548 case MONO_MARSHAL_CONV_LPSTR_STR:
1549 return mono_string_new_wrapper;
1550 case MONO_MARSHAL_CONV_STR_LPTSTR:
1552 return mono_marshal_string_to_utf16;
1554 return mono_string_to_lpstr;
1556 case MONO_MARSHAL_CONV_STR_LPSTR:
1557 return mono_string_to_lpstr;
1558 case MONO_MARSHAL_CONV_STR_BSTR:
1559 return mono_string_to_bstr;
1560 case MONO_MARSHAL_CONV_BSTR_STR:
1561 return mono_string_from_bstr;
1562 case MONO_MARSHAL_CONV_STR_TBSTR:
1563 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1564 return mono_string_to_ansibstr;
1565 case MONO_MARSHAL_CONV_SB_LPSTR:
1566 return mono_string_builder_to_utf8;
1567 case MONO_MARSHAL_CONV_SB_LPTSTR:
1569 return mono_string_builder_to_utf16;
1571 return mono_string_builder_to_utf8;
1573 case MONO_MARSHAL_CONV_SB_LPWSTR:
1574 return mono_string_builder_to_utf16;
1575 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1576 return mono_array_to_savearray;
1577 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1578 return mono_array_to_lparray;
1579 case MONO_MARSHAL_FREE_LPARRAY:
1580 return mono_free_lparray;
1581 case MONO_MARSHAL_CONV_DEL_FTN:
1582 return mono_delegate_to_ftnptr;
1583 case MONO_MARSHAL_CONV_FTN_DEL:
1584 return mono_ftnptr_to_delegate;
1585 case MONO_MARSHAL_CONV_LPSTR_SB:
1586 return mono_string_utf8_to_builder;
1587 case MONO_MARSHAL_CONV_LPTSTR_SB:
1589 return mono_string_utf16_to_builder;
1591 return mono_string_utf8_to_builder;
1593 case MONO_MARSHAL_CONV_LPWSTR_SB:
1594 return mono_string_utf16_to_builder;
1595 case MONO_MARSHAL_FREE_ARRAY:
1596 return mono_marshal_free_array;
1597 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1598 return mono_string_to_byvalstr;
1599 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1600 return mono_string_to_byvalwstr;
1602 g_assert_not_reached ();
1609 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1614 case MONO_MARSHAL_CONV_BOOL_I4:
1615 mono_mb_emit_ldloc (mb, 1);
1616 mono_mb_emit_ldloc (mb, 0);
1617 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1618 mono_mb_emit_byte (mb, CEE_STIND_I4);
1620 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1621 mono_mb_emit_ldloc (mb, 1);
1622 mono_mb_emit_ldloc (mb, 0);
1623 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1624 mono_mb_emit_byte (mb, CEE_NEG);
1625 mono_mb_emit_byte (mb, CEE_STIND_I2);
1627 case MONO_MARSHAL_CONV_STR_LPWSTR:
1628 case MONO_MARSHAL_CONV_STR_LPSTR:
1629 case MONO_MARSHAL_CONV_STR_LPTSTR:
1630 case MONO_MARSHAL_CONV_STR_BSTR:
1631 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1632 case MONO_MARSHAL_CONV_STR_TBSTR: {
1635 /* free space if free == true */
1636 mono_mb_emit_ldloc (mb, 2);
1637 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1638 mono_mb_emit_ldloc (mb, 1);
1639 mono_mb_emit_byte (mb, CEE_LDIND_I);
1640 mono_mb_emit_icall (mb, g_free);
1641 mono_mb_patch_short_branch (mb, pos);
1643 mono_mb_emit_ldloc (mb, 1);
1644 mono_mb_emit_ldloc (mb, 0);
1645 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1646 mono_mb_emit_icall (mb, conv_to_icall (conv));
1647 mono_mb_emit_byte (mb, CEE_STIND_I);
1650 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1651 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1652 case MONO_MARSHAL_CONV_DEL_FTN:
1653 mono_mb_emit_ldloc (mb, 1);
1654 mono_mb_emit_ldloc (mb, 0);
1655 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1656 mono_mb_emit_icall (mb, conv_to_icall (conv));
1657 mono_mb_emit_byte (mb, CEE_STIND_I);
1659 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1660 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1663 mono_mb_emit_ldloc (mb, 1); /* dst */
1664 mono_mb_emit_ldloc (mb, 0);
1665 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1666 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1667 mono_mb_emit_icall (mb, conv_to_icall (conv));
1670 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1671 MonoClass *eklass = NULL;
1674 if (type->type == MONO_TYPE_SZARRAY) {
1675 eklass = type->data.klass;
1677 g_assert_not_reached ();
1680 if (eklass->valuetype)
1681 esize = mono_class_native_size (eklass, NULL);
1683 esize = sizeof (gpointer);
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1687 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1689 if (eklass->blittable) {
1690 mono_mb_emit_ldloc (mb, 1);
1691 mono_mb_emit_ldloc (mb, 0);
1692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1693 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1694 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1695 mono_mb_emit_byte (mb, CEE_PREFIX1);
1696 mono_mb_emit_byte (mb, CEE_CPBLK);
1698 int array_var, src_var, dst_var, index_var;
1699 guint32 label2, label3;
1701 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1702 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1703 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1706 mono_mb_emit_ldloc (mb, 0);
1707 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1708 mono_mb_emit_stloc (mb, array_var);
1710 /* save the old src pointer */
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_stloc (mb, src_var);
1713 /* save the old dst pointer */
1714 mono_mb_emit_ldloc (mb, 1);
1715 mono_mb_emit_stloc (mb, dst_var);
1717 /* Emit marshalling loop */
1718 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1719 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1720 mono_mb_emit_stloc (mb, index_var);
1723 label2 = mono_mb_get_label (mb);
1724 mono_mb_emit_ldloc (mb, index_var);
1725 mono_mb_emit_ldloc (mb, array_var);
1726 mono_mb_emit_byte (mb, CEE_LDLEN);
1727 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1730 mono_mb_emit_ldloc (mb, array_var);
1731 mono_mb_emit_ldloc (mb, index_var);
1732 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1733 mono_mb_emit_stloc (mb, 0);
1735 /* dst is already set */
1737 /* Do the conversion */
1738 emit_struct_conv (mb, eklass, FALSE);
1741 mono_mb_emit_add_to_local (mb, index_var, 1);
1743 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1745 mono_mb_patch_branch (mb, label3);
1747 /* restore the old src pointer */
1748 mono_mb_emit_ldloc (mb, src_var);
1749 mono_mb_emit_stloc (mb, 0);
1750 /* restore the old dst pointer */
1751 mono_mb_emit_ldloc (mb, dst_var);
1752 mono_mb_emit_stloc (mb, 1);
1755 mono_mb_patch_branch (mb, pos);
1758 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1759 mono_mb_emit_ldloc (mb, 0);
1760 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1761 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1763 mono_mb_emit_ldloc (mb, 1);
1764 mono_mb_emit_ldloc (mb, 0);
1765 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1766 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1767 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1768 mono_mb_patch_short_branch (mb, pos);
1771 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1772 int src_var, dst_var;
1774 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1775 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1777 mono_mb_emit_ldloc (mb, 0);
1778 mono_mb_emit_byte (mb, CEE_LDIND_I);
1779 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1781 /* save the old src pointer */
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_stloc (mb, src_var);
1784 /* save the old dst pointer */
1785 mono_mb_emit_ldloc (mb, 1);
1786 mono_mb_emit_stloc (mb, dst_var);
1788 /* src = pointer to object data */
1789 mono_mb_emit_ldloc (mb, 0);
1790 mono_mb_emit_byte (mb, CEE_LDIND_I);
1791 mono_mb_emit_icon (mb, sizeof (MonoObject));
1792 mono_mb_emit_byte (mb, CEE_ADD);
1793 mono_mb_emit_stloc (mb, 0);
1795 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1797 /* restore the old src pointer */
1798 mono_mb_emit_ldloc (mb, src_var);
1799 mono_mb_emit_stloc (mb, 0);
1800 /* restore the old dst pointer */
1801 mono_mb_emit_ldloc (mb, dst_var);
1802 mono_mb_emit_stloc (mb, 1);
1804 mono_mb_patch_branch (mb, pos);
1809 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1810 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1811 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1812 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1814 #endif /* DISABLE_COM */
1816 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1819 mono_mb_emit_ldloc (mb, 0);
1820 mono_mb_emit_byte (mb, CEE_LDIND_I);
1821 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1822 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1823 mono_mb_patch_branch (mb, pos);
1825 /* Pull the handle field from SafeHandle */
1826 mono_mb_emit_ldloc (mb, 1);
1827 mono_mb_emit_ldloc (mb, 0);
1828 mono_mb_emit_byte (mb, CEE_LDIND_I);
1829 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1830 mono_mb_emit_byte (mb, CEE_LDIND_I);
1831 mono_mb_emit_byte (mb, CEE_STIND_I);
1835 case MONO_MARSHAL_CONV_HANDLEREF: {
1836 mono_mb_emit_ldloc (mb, 1);
1837 mono_mb_emit_ldloc (mb, 0);
1838 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1839 mono_mb_emit_byte (mb, CEE_ADD);
1840 mono_mb_emit_byte (mb, CEE_LDIND_I);
1841 mono_mb_emit_byte (mb, CEE_STIND_I);
1846 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1847 MonoException *exc = mono_get_exception_not_implemented (msg);
1848 g_warning ("%s", msg);
1850 mono_raise_exception (exc);
1856 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1857 MonoMarshalNative string_encoding)
1859 MonoMarshalType *info;
1863 emit_struct_conv(mb, klass->parent, to_object);
1865 info = mono_marshal_load_type_info (klass);
1867 if (info->native_size == 0)
1870 if (klass->blittable) {
1871 int msize = mono_class_value_size (klass, NULL);
1872 g_assert (msize == info->native_size);
1873 mono_mb_emit_ldloc (mb, 1);
1874 mono_mb_emit_ldloc (mb, 0);
1875 mono_mb_emit_icon (mb, msize);
1876 mono_mb_emit_byte (mb, CEE_PREFIX1);
1877 mono_mb_emit_byte (mb, CEE_CPBLK);
1879 mono_mb_emit_add_to_local (mb, 0, msize);
1880 mono_mb_emit_add_to_local (mb, 1, msize);
1884 if (klass != mono_class_try_get_safehandle_class ()) {
1885 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1886 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1887 mono_type_full_name (&klass->byval_arg));
1888 mono_mb_emit_exception_marshal_directive (mb, msg);
1893 for (i = 0; i < info->num_fields; i++) {
1894 MonoMarshalNative ntype;
1895 MonoMarshalConv conv;
1896 MonoType *ftype = info->fields [i].field->type;
1899 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1901 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1904 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1907 msize = klass->instance_size - info->fields [i].field->offset;
1908 usize = info->native_size - info->fields [i].offset;
1910 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1911 usize = info->fields [i + 1].offset - info->fields [i].offset;
1914 if (klass != mono_class_try_get_safehandle_class ()){
1916 * FIXME: Should really check for usize==0 and msize>0, but we apply
1917 * the layout to the managed structure as well.
1920 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1921 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1922 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1923 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1924 "reference field at the same offset as another field.",
1925 mono_type_full_name (&klass->byval_arg));
1930 case MONO_MARSHAL_CONV_NONE: {
1933 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1934 ftype->type == MONO_TYPE_U) {
1935 mono_mb_emit_ldloc (mb, 1);
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_byte (mb, CEE_LDIND_I);
1938 mono_mb_emit_byte (mb, CEE_STIND_I);
1949 case MONO_TYPE_BOOLEAN:
1952 case MONO_TYPE_CHAR:
1958 mono_mb_emit_ldloc (mb, 1);
1959 mono_mb_emit_ldloc (mb, 0);
1960 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1962 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1963 mono_mb_emit_byte (mb, CEE_STIND_I2);
1965 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1966 mono_mb_emit_byte (mb, CEE_STIND_I1);
1969 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1970 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1973 case MONO_TYPE_VALUETYPE: {
1974 int src_var, dst_var;
1976 if (ftype->data.klass->enumtype) {
1977 ftype = mono_class_enum_basetype (ftype->data.klass);
1981 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1982 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1984 /* save the old src pointer */
1985 mono_mb_emit_ldloc (mb, 0);
1986 mono_mb_emit_stloc (mb, src_var);
1987 /* save the old dst pointer */
1988 mono_mb_emit_ldloc (mb, 1);
1989 mono_mb_emit_stloc (mb, dst_var);
1991 emit_struct_conv (mb, ftype->data.klass, to_object);
1993 /* restore the old src pointer */
1994 mono_mb_emit_ldloc (mb, src_var);
1995 mono_mb_emit_stloc (mb, 0);
1996 /* restore the old dst pointer */
1997 mono_mb_emit_ldloc (mb, dst_var);
1998 mono_mb_emit_stloc (mb, 1);
2001 case MONO_TYPE_OBJECT: {
2004 static MonoMethod *variant_clear = NULL;
2005 static MonoMethod *get_object_for_native_variant = NULL;
2008 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2009 if (!get_object_for_native_variant)
2010 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2011 mono_mb_emit_ldloc (mb, 1);
2012 mono_mb_emit_ldloc (mb, 0);
2013 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2014 mono_mb_emit_byte (mb, CEE_STIND_REF);
2016 mono_mb_emit_ldloc (mb, 0);
2017 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2020 static MonoMethod *get_native_variant_for_object = NULL;
2022 if (!get_native_variant_for_object)
2023 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2025 mono_mb_emit_ldloc (mb, 0);
2026 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2027 mono_mb_emit_ldloc (mb, 1);
2028 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2031 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2032 mono_mb_emit_exception_marshal_directive (mb, msg);
2038 g_warning ("marshaling type %02x not implemented", ftype->type);
2039 g_assert_not_reached ();
2044 int src_var, dst_var;
2046 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2047 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2049 /* save the old src pointer */
2050 mono_mb_emit_ldloc (mb, 0);
2051 mono_mb_emit_stloc (mb, src_var);
2052 /* save the old dst pointer */
2053 mono_mb_emit_ldloc (mb, 1);
2054 mono_mb_emit_stloc (mb, dst_var);
2057 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2059 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2061 /* restore the old src pointer */
2062 mono_mb_emit_ldloc (mb, src_var);
2063 mono_mb_emit_stloc (mb, 0);
2064 /* restore the old dst pointer */
2065 mono_mb_emit_ldloc (mb, dst_var);
2066 mono_mb_emit_stloc (mb, 1);
2071 mono_mb_emit_add_to_local (mb, 0, usize);
2072 mono_mb_emit_add_to_local (mb, 1, msize);
2074 mono_mb_emit_add_to_local (mb, 0, msize);
2075 mono_mb_emit_add_to_local (mb, 1, usize);
2081 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2083 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2087 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2089 /* Call DestroyStructure */
2090 /* FIXME: Only do this if needed */
2091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2092 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2093 mono_mb_emit_ldloc (mb, struct_var);
2094 mono_mb_emit_icall (mb, mono_struct_delete_old);
2098 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2100 int pos_noabort, pos_noex;
2102 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2103 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2104 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2105 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2107 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2108 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2110 mono_mb_emit_icall (mb, checkpoint_func);
2111 /* Throw the exception returned by the checkpoint function, if any */
2112 mono_mb_emit_byte (mb, CEE_DUP);
2113 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2114 mono_mb_emit_byte (mb, CEE_THROW);
2115 mono_mb_patch_branch (mb, pos_noex);
2116 mono_mb_emit_byte (mb, CEE_POP);
2118 mono_mb_patch_branch (mb, pos_noabort);
2122 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2124 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2127 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2131 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2133 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2137 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2139 emit_thread_interrupt_checkpoint (mb);
2143 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2145 emit_thread_force_interrupt_checkpoint (mb);
2148 #endif /* DISABLE_JIT */
2150 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2151 static MonoAsyncResult *
2152 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2155 MonoMulticastDelegate *mcast_delegate;
2159 g_assert (delegate);
2160 mcast_delegate = (MonoMulticastDelegate *) delegate;
2161 if (mcast_delegate->delegates != NULL) {
2162 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2166 #ifndef DISABLE_REMOTING
2167 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2168 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2169 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2170 /* If the target is a proxy, make a direct call. Is proxy's work
2171 // to make the call asynchronous.
2173 MonoMethodMessage *msg;
2174 MonoDelegate *async_callback;
2176 MonoAsyncResult *ares;
2178 MonoArray *out_args;
2179 method = delegate->method;
2181 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2182 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2183 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2184 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2185 MONO_OBJECT_SETREF (msg, async_result, ares);
2186 msg->call_type = CallType_BeginInvoke;
2189 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2190 if (!mono_error_ok (&error)) {
2191 mono_error_set_pending_exception (&error);
2195 mono_set_pending_exception ((MonoException *) exc);
2201 klass = delegate->object.vtable->klass;
2203 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2205 method = mono_get_delegate_invoke (klass);
2208 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2209 mono_error_set_pending_exception (&error);
2216 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2218 int i, params_var, tmp_var;
2220 /* allocate local (pointer) *params[] */
2221 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2222 /* allocate local (pointer) tmp */
2223 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2225 /* alloate space on stack to store an array of pointers to the arguments */
2226 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2227 mono_mb_emit_byte (mb, CEE_PREFIX1);
2228 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2229 mono_mb_emit_stloc (mb, params_var);
2232 mono_mb_emit_ldloc (mb, params_var);
2233 mono_mb_emit_stloc (mb, tmp_var);
2235 if (save_this && sig->hasthis) {
2236 mono_mb_emit_ldloc (mb, tmp_var);
2237 mono_mb_emit_ldarg_addr (mb, 0);
2238 mono_mb_emit_byte (mb, CEE_STIND_I);
2239 /* tmp = tmp + sizeof (gpointer) */
2240 if (sig->param_count)
2241 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2245 for (i = 0; i < sig->param_count; i++) {
2246 mono_mb_emit_ldloc (mb, tmp_var);
2247 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2248 mono_mb_emit_byte (mb, CEE_STIND_I);
2249 /* tmp = tmp + sizeof (gpointer) */
2250 if (i < (sig->param_count - 1))
2251 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2257 #endif /* DISABLE_JIT */
2260 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2264 GString *res = g_string_new ("");
2267 g_string_append (res, prefix);
2268 g_string_append_c (res, '_');
2271 mono_type_get_desc (res, sig->ret, FALSE);
2274 g_string_append (res, "__this__");
2276 for (i = 0; i < sig->param_count; ++i) {
2277 g_string_append_c (res, '_');
2278 mono_type_get_desc (res, sig->params [i], FALSE);
2281 g_string_free (res, FALSE);
2286 * mono_marshal_get_string_encoding:
2288 * Return the string encoding which should be used for a given parameter.
2290 static MonoMarshalNative
2291 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2293 /* First try the parameter marshal info */
2295 if (spec->native == MONO_NATIVE_LPARRAY) {
2296 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2297 return spec->data.array_data.elem_type;
2300 return spec->native;
2304 return MONO_NATIVE_LPSTR;
2306 /* Then try the method level marshal info */
2307 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2308 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2309 return MONO_NATIVE_LPSTR;
2310 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2311 return MONO_NATIVE_LPWSTR;
2312 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2314 return MONO_NATIVE_LPWSTR;
2316 return MONO_NATIVE_LPSTR;
2319 return MONO_NATIVE_LPSTR;
2323 static MonoMarshalConv
2324 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2326 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2329 case MONO_NATIVE_LPWSTR:
2330 return MONO_MARSHAL_CONV_STR_LPWSTR;
2331 case MONO_NATIVE_LPSTR:
2332 case MONO_NATIVE_VBBYREFSTR:
2333 return MONO_MARSHAL_CONV_STR_LPSTR;
2334 case MONO_NATIVE_LPTSTR:
2335 return MONO_MARSHAL_CONV_STR_LPTSTR;
2336 case MONO_NATIVE_BSTR:
2337 return MONO_MARSHAL_CONV_STR_BSTR;
2339 return (MonoMarshalConv)-1;
2343 static MonoMarshalConv
2344 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2346 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2349 case MONO_NATIVE_LPWSTR:
2350 return MONO_MARSHAL_CONV_SB_LPWSTR;
2352 case MONO_NATIVE_LPSTR:
2353 return MONO_MARSHAL_CONV_SB_LPSTR;
2355 case MONO_NATIVE_LPTSTR:
2356 return MONO_MARSHAL_CONV_SB_LPTSTR;
2359 return (MonoMarshalConv)-1;
2363 static MonoMarshalConv
2364 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2366 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2371 case MONO_NATIVE_LPWSTR:
2373 return MONO_MARSHAL_CONV_LPWSTR_STR;
2374 case MONO_NATIVE_LPSTR:
2375 case MONO_NATIVE_VBBYREFSTR:
2376 return MONO_MARSHAL_CONV_LPSTR_STR;
2377 case MONO_NATIVE_LPTSTR:
2378 return MONO_MARSHAL_CONV_LPTSTR_STR;
2379 case MONO_NATIVE_BSTR:
2380 return MONO_MARSHAL_CONV_BSTR_STR;
2382 return (MonoMarshalConv)-1;
2386 static MonoMarshalConv
2387 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2389 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2394 case MONO_NATIVE_LPWSTR:
2396 * mono_string_builder_to_utf16 does not allocate a
2397 * new buffer, so no need to free it.
2400 return MONO_MARSHAL_CONV_LPWSTR_SB;
2401 case MONO_NATIVE_LPSTR:
2402 return MONO_MARSHAL_CONV_LPSTR_SB;
2404 case MONO_NATIVE_LPTSTR:
2405 return MONO_MARSHAL_CONV_LPTSTR_SB;
2408 return (MonoMarshalConv)-1;
2413 * Return whenever a field of a native structure or an array member needs to
2417 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2419 MonoMarshalNative encoding;
2422 case MONO_TYPE_VALUETYPE:
2423 /* FIXME: Optimize this */
2425 case MONO_TYPE_OBJECT:
2426 case MONO_TYPE_CLASS:
2427 if (t->data.klass == mono_defaults.stringbuilder_class) {
2429 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2433 case MONO_TYPE_STRING:
2434 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2435 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2442 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2445 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2448 mono_marshal_lock ();
2451 g_hash_table_new (hash_func, equal_func);
2452 mono_memory_barrier ();
2455 mono_marshal_unlock ();
2461 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2463 return get_cache (var, hash_func, equal_func);
2467 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2471 mono_marshal_lock ();
2472 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2473 mono_marshal_unlock ();
2480 * Create a MonoMethod from MB, set INFO as wrapper info.
2483 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2484 int max_stack, WrapperInfo *info)
2488 res = mono_mb_create_method (mb, sig, max_stack);
2490 mono_marshal_set_wrapper_info (res, info);
2494 /* Create the method from the builder and place it in the cache */
2496 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2497 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2498 int max_stack, WrapperInfo *info, gboolean *out_found)
2505 mono_marshal_lock ();
2506 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2507 mono_marshal_unlock ();
2510 newm = mono_mb_create_method (mb, sig, max_stack);
2511 mono_marshal_lock ();
2512 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2515 g_hash_table_insert (cache, key, res);
2516 mono_marshal_set_wrapper_info (res, info);
2517 mono_marshal_unlock ();
2521 mono_marshal_unlock ();
2522 mono_free_method (newm);
2530 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2531 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2534 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2538 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2541 int wrapper_type = wrapper->wrapper_type;
2544 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2547 info = mono_marshal_get_wrapper_info (wrapper);
2549 switch (wrapper_type) {
2550 case MONO_WRAPPER_REMOTING_INVOKE:
2551 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2552 case MONO_WRAPPER_XDOMAIN_INVOKE:
2553 m = info->d.remoting.method;
2554 if (wrapper->is_inflated) {
2558 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2559 * contains an uninflated method.
2561 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2562 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2566 case MONO_WRAPPER_SYNCHRONIZED:
2567 m = info->d.synchronized.method;
2568 if (wrapper->is_inflated) {
2571 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2572 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2576 case MONO_WRAPPER_UNBOX:
2577 return info->d.unbox.method;
2578 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2579 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2580 return info->d.managed_to_native.method;
2583 case MONO_WRAPPER_RUNTIME_INVOKE:
2584 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2585 return info->d.runtime_invoke.method;
2594 * mono_marshal_get_wrapper_info:
2596 * Retrieve the WrapperInfo structure associated with WRAPPER.
2599 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2601 g_assert (wrapper->wrapper_type);
2603 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2607 * mono_marshal_set_wrapper_info:
2609 * Set the WrapperInfo structure associated with the wrapper
2610 * method METHOD to INFO.
2613 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2617 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2620 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2625 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2629 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2630 info->subtype = subtype;
2635 * get_wrapper_target_class:
2637 * Return the class where a wrapper method should be placed.
2640 get_wrapper_target_class (MonoImage *image)
2647 * - can't put all wrappers into an mscorlib class, because they reference
2648 * metadata (signature) so they should be put into the same image as the
2649 * method they wrap, so they are unloaded together.
2650 * - putting them into a class with a type initalizer could cause the
2651 * initializer to be executed which can be a problem if the wrappers are
2653 * - putting them into an inflated class can cause problems if the the
2654 * class is deleted because it references an image which is unloaded.
2655 * To avoid these problems, we put the wrappers into the <Module> class of
2658 if (image_is_dynamic (image)) {
2659 klass = ((MonoDynamicImage*)image)->wrappers_type;
2661 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2662 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2670 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2671 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2675 * check_generic_wrapper_cache:
2677 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2678 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2679 * generic method definition.
2682 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2685 MonoMethod *inst, *def;
2686 MonoGenericContext *ctx;
2688 g_assert (orig_method->is_inflated);
2689 ctx = mono_method_get_context (orig_method);
2692 * Look for the instance
2694 res = mono_marshal_find_in_cache (cache, key);
2699 * Look for the definition
2701 def = mono_marshal_find_in_cache (cache, def_key);
2704 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2705 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2707 mono_memory_barrier ();
2708 mono_marshal_lock ();
2709 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2711 g_hash_table_insert (cache, key, inst);
2714 mono_marshal_unlock ();
2721 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2724 MonoMethod *inst, *res;
2727 * We use the same cache for the generic definition and the instances.
2729 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2730 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2731 mono_memory_barrier ();
2732 mono_marshal_lock ();
2733 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2735 g_hash_table_insert (cache, key, inst);
2738 mono_marshal_unlock ();
2743 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2747 MonoMethod *inst, *def;
2750 * Look for the instance
2752 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2757 * Look for the definition
2759 def = mono_marshal_find_in_cache (cache, def_method->klass);
2761 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2762 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2765 mono_memory_barrier ();
2766 mono_marshal_lock ();
2767 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2769 g_hash_table_insert (cache, orig_method->klass, inst);
2772 mono_marshal_unlock ();
2779 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2782 MonoMethod *inst, *res;
2785 * We use the same cache for the generic definition and the instances.
2787 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2788 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2790 mono_memory_barrier ();
2791 mono_marshal_lock ();
2792 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2794 g_hash_table_insert (cache, orig_method->klass, inst);
2797 mono_marshal_unlock ();
2802 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2804 MonoMethodSignature *sig;
2805 MonoMethodBuilder *mb;
2810 MonoGenericContext *ctx = NULL;
2811 MonoMethod *orig_method = NULL;
2813 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2814 !strcmp (method->name, "BeginInvoke"));
2817 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2819 if (method->is_inflated) {
2820 orig_method = method;
2821 ctx = &((MonoMethodInflated*)method)->context;
2822 method = ((MonoMethodInflated*)method)->declaring;
2825 sig = mono_signature_no_pinvoke (method);
2831 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2832 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2836 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2837 (GHashFunc)mono_signature_hash,
2838 (GCompareFunc)mono_metadata_signature_equal);
2839 if ((res = mono_marshal_find_in_cache (cache, sig)))
2843 g_assert (sig->hasthis);
2845 name = mono_signature_to_name (sig, "begin_invoke");
2847 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2849 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2853 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2855 mono_mb_emit_ldarg (mb, 0);
2856 mono_mb_emit_ldloc (mb, params_var);
2857 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2858 mono_mb_emit_byte (mb, CEE_RET);
2863 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2864 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2866 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2873 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2875 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2878 MonoDomain *domain = mono_domain_get ();
2879 MonoAsyncResult *ares;
2880 MonoMethod *method = NULL;
2881 MonoMethodSignature *sig;
2882 MonoMethodMessage *msg;
2883 MonoObject *res, *exc;
2884 MonoArray *out_args;
2887 g_assert (delegate);
2889 if (!delegate->method_info) {
2890 g_assert (delegate->method);
2891 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2892 if (!mono_error_ok (&error)) {
2893 mono_error_set_pending_exception (&error);
2896 MONO_OBJECT_SETREF (delegate, method_info, rm);
2899 if (!delegate->method_info || !delegate->method_info->method)
2900 g_assert_not_reached ();
2902 klass = delegate->object.vtable->klass;
2904 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2905 g_assert (method != NULL);
2907 sig = mono_signature_no_pinvoke (method);
2909 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2911 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2913 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."));
2917 if (ares->async_delegate != (MonoObject*)delegate) {
2918 mono_set_pending_exception (mono_get_exception_invalid_operation (
2919 "The IAsyncResult object provided does not match this delegate."));
2923 #ifndef DISABLE_REMOTING
2924 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2925 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2926 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2927 if (!mono_error_ok (&error)) {
2928 mono_error_set_pending_exception (&error);
2931 mono_message_init (domain, msg, delegate->method_info, NULL);
2932 msg->call_type = CallType_EndInvoke;
2933 MONO_OBJECT_SETREF (msg, async_result, ares);
2934 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2935 if (!mono_error_ok (&error)) {
2936 mono_error_set_pending_exception (&error);
2942 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2946 if (((MonoException*)exc)->stack_trace) {
2947 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2949 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2951 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2954 mono_set_pending_exception ((MonoException*)exc);
2957 mono_method_return_message_restore (method, params, out_args);
2964 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2966 MonoType *t = mono_type_get_underlying_type (return_type);
2968 if (return_type->byref)
2969 return_type = &mono_defaults.int_class->byval_arg;
2972 case MONO_TYPE_VOID:
2973 g_assert_not_reached ();
2976 case MONO_TYPE_STRING:
2977 case MONO_TYPE_CLASS:
2978 case MONO_TYPE_OBJECT:
2979 case MONO_TYPE_ARRAY:
2980 case MONO_TYPE_SZARRAY:
2984 case MONO_TYPE_BOOLEAN:
2987 case MONO_TYPE_CHAR:
2997 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2998 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3000 case MONO_TYPE_GENERICINST:
3001 if (!mono_type_generic_inst_is_valuetype (t))
3004 case MONO_TYPE_VALUETYPE: {
3005 MonoClass *klass = mono_class_from_mono_type (return_type);
3006 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3007 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3011 case MONO_TYPE_MVAR: {
3012 MonoClass *klass = mono_class_from_mono_type (return_type);
3013 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3017 g_warning ("type 0x%x not handled", return_type->type);
3018 g_assert_not_reached ();
3021 mono_mb_emit_byte (mb, CEE_RET);
3024 #endif /* DISABLE_JIT */
3027 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3029 MonoMethodSignature *sig;
3030 MonoMethodBuilder *mb;
3035 MonoGenericContext *ctx = NULL;
3036 MonoMethod *orig_method = NULL;
3038 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3039 !strcmp (method->name, "EndInvoke"));
3042 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3044 if (method->is_inflated) {
3045 orig_method = method;
3046 ctx = &((MonoMethodInflated*)method)->context;
3047 method = ((MonoMethodInflated*)method)->declaring;
3050 sig = mono_signature_no_pinvoke (method);
3056 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3057 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3061 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3062 (GHashFunc)mono_signature_hash,
3063 (GCompareFunc)mono_metadata_signature_equal);
3064 if ((res = mono_marshal_find_in_cache (cache, sig)))
3068 g_assert (sig->hasthis);
3070 name = mono_signature_to_name (sig, "end_invoke");
3072 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3074 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3078 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3080 mono_mb_emit_ldarg (mb, 0);
3081 mono_mb_emit_ldloc (mb, params_var);
3082 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3084 if (sig->ret->type == MONO_TYPE_VOID) {
3085 mono_mb_emit_byte (mb, CEE_POP);
3086 mono_mb_emit_byte (mb, CEE_RET);
3088 mono_mb_emit_restore_result (mb, sig->ret);
3093 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3094 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3096 res = mono_mb_create_and_cache (cache, sig,
3097 mb, sig, sig->param_count + 16);
3106 MonoMethodSignature *sig;
3108 } SignaturePointerPair;
3111 signature_pointer_pair_hash (gconstpointer data)
3113 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3115 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3119 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3121 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3122 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3126 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3128 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3130 return pair->pointer == user_data;
3134 free_signature_pointer_pair (SignaturePointerPair *pair)
3140 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3142 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3144 MonoMethodBuilder *mb;
3147 gpointer cache_key = NULL;
3148 SignaturePointerPair key;
3149 SignaturePointerPair *new_key;
3150 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3151 int pos0, pos1, pos2;
3153 MonoClass *target_class = NULL;
3154 gboolean closed_over_null = FALSE;
3155 MonoGenericContext *ctx = NULL;
3156 MonoGenericContainer *container = NULL;
3157 MonoMethod *orig_method = NULL;
3159 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3163 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3164 !strcmp (method->name, "Invoke"));
3166 invoke_sig = sig = mono_signature_no_pinvoke (method);
3169 * If the delegate target is null, and the target method is not static, a virtual
3170 * call is made to that method with the first delegate argument as this. This is
3171 * a non-documented .NET feature.
3174 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3175 if (target_method->is_inflated) {
3177 MonoType *target_type;
3179 g_assert (method->signature->hasthis);
3180 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3181 mono_method_get_context (method), &error);
3182 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3183 target_class = mono_class_from_mono_type (target_type);
3185 target_class = target_method->klass;
3188 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3191 if (static_method_with_first_arg_bound) {
3192 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3193 g_assert (!callvirt);
3194 invoke_sig = mono_method_signature (target_method);
3198 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3200 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3201 orig_method = method;
3202 ctx = &((MonoMethodInflated*)method)->context;
3203 method = ((MonoMethodInflated*)method)->declaring;
3205 container = mono_method_get_generic_container (method);
3207 container = method->klass->generic_container;
3208 g_assert (container);
3210 invoke_sig = sig = mono_signature_no_pinvoke (method);
3217 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3218 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3221 cache_key = method->klass;
3222 } else if (static_method_with_first_arg_bound) {
3223 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3224 (GHashFunc)mono_signature_hash,
3225 (GCompareFunc)mono_metadata_signature_equal);
3227 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3229 res = mono_marshal_find_in_cache (cache, invoke_sig);
3232 cache_key = invoke_sig;
3233 } else if (callvirt) {
3234 GHashTable **cache_ptr;
3236 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3238 /* We need to cache the signature+method pair */
3239 mono_marshal_lock ();
3241 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3243 key.sig = invoke_sig;
3244 key.pointer = target_method;
3245 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3246 mono_marshal_unlock ();
3250 // Inflated methods should not be in this cache because it's not stored on the imageset.
3251 g_assert (!method->is_inflated);
3252 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3253 (GHashFunc)mono_signature_hash,
3254 (GCompareFunc)mono_metadata_signature_equal);
3255 res = mono_marshal_find_in_cache (cache, sig);
3261 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3262 static_sig->hasthis = 0;
3263 if (!static_method_with_first_arg_bound)
3264 invoke_sig = static_sig;
3266 if (static_method_with_first_arg_bound)
3267 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3268 else if (closed_over_null)
3269 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3271 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3273 name = mono_signature_to_name (invoke_sig, "invoke");
3275 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3277 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3281 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3283 /* allocate local 0 (object) */
3284 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3285 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3286 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3287 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3288 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3291 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3293 g_assert (sig->hasthis);
3296 * {type: sig->ret} res;
3297 * if (delegates == null) {
3298 * return this.<target> ( args .. );
3300 * int i = 0, len = this.delegates.Length;
3302 * res = this.delegates [i].Invoke ( args .. );
3303 * } while (++i < len);
3308 /* this wrapper can be used in unmanaged-managed transitions */
3309 emit_thread_interrupt_checkpoint (mb);
3311 /* delegates = this.delegates */
3312 mono_mb_emit_ldarg (mb, 0);
3313 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3314 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3315 mono_mb_emit_stloc (mb, local_delegates);
3318 /* if (delegates == null) */
3319 mono_mb_emit_ldloc (mb, local_delegates);
3320 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3322 /* return target.<target_method|method_ptr> ( args .. ); */
3324 /* target = d.target; */
3325 mono_mb_emit_ldarg (mb, 0);
3326 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3327 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3328 mono_mb_emit_stloc (mb, local_target);
3330 /*static methods with bound first arg can have null target and still be bound*/
3331 if (!static_method_with_first_arg_bound) {
3332 /* if target != null */
3333 mono_mb_emit_ldloc (mb, local_target);
3334 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3336 /* then call this->method_ptr nonstatic */
3339 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3341 mono_mb_emit_ldloc (mb, local_target);
3342 for (i = 0; i < sig->param_count; ++i)
3343 mono_mb_emit_ldarg (mb, i + 1);
3344 mono_mb_emit_ldarg (mb, 0);
3345 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3346 mono_mb_emit_byte (mb, CEE_LDIND_I);
3347 mono_mb_emit_ldarg (mb, 0);
3348 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3349 mono_mb_emit_byte (mb, CEE_LDIND_I);
3350 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3351 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3352 mono_mb_emit_byte (mb, CEE_RET);
3355 /* else [target == null] call this->method_ptr static */
3356 mono_mb_patch_branch (mb, pos0);
3360 if (!closed_over_null) {
3361 if (target_class->valuetype) {
3362 mono_mb_emit_ldarg (mb, 1);
3363 for (i = 1; i < sig->param_count; ++i)
3364 mono_mb_emit_ldarg (mb, i + 1);
3365 mono_mb_emit_op (mb, CEE_CALL, target_method);
3367 mono_mb_emit_ldarg (mb, 1);
3368 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3369 for (i = 1; i < sig->param_count; ++i)
3370 mono_mb_emit_ldarg (mb, i + 1);
3371 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3374 mono_mb_emit_byte (mb, CEE_LDNULL);
3375 for (i = 0; i < sig->param_count; ++i)
3376 mono_mb_emit_ldarg (mb, i + 1);
3377 mono_mb_emit_op (mb, CEE_CALL, target_method);
3380 if (static_method_with_first_arg_bound) {
3381 mono_mb_emit_ldloc (mb, local_target);
3382 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3383 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3385 for (i = 0; i < sig->param_count; ++i)
3386 mono_mb_emit_ldarg (mb, i + 1);
3387 mono_mb_emit_ldarg (mb, 0);
3388 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3389 mono_mb_emit_byte (mb, CEE_LDIND_I);
3390 mono_mb_emit_ldarg (mb, 0);
3391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3392 mono_mb_emit_byte (mb, CEE_LDIND_I);
3393 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3394 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3397 mono_mb_emit_byte (mb, CEE_RET);
3399 /* else [delegates != null] */
3400 mono_mb_patch_branch (mb, pos2);
3402 /* len = delegates.Length; */
3403 mono_mb_emit_ldloc (mb, local_delegates);
3404 mono_mb_emit_byte (mb, CEE_LDLEN);
3405 mono_mb_emit_byte (mb, CEE_CONV_I4);
3406 mono_mb_emit_stloc (mb, local_len);
3409 mono_mb_emit_icon (mb, 0);
3410 mono_mb_emit_stloc (mb, local_i);
3412 pos1 = mono_mb_get_label (mb);
3414 /* d = delegates [i]; */
3415 mono_mb_emit_ldloc (mb, local_delegates);
3416 mono_mb_emit_ldloc (mb, local_i);
3417 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3418 mono_mb_emit_stloc (mb, local_d);
3420 /* res = d.Invoke ( args .. ); */
3421 mono_mb_emit_ldloc (mb, local_d);
3422 for (i = 0; i < sig->param_count; i++)
3423 mono_mb_emit_ldarg (mb, i + 1);
3425 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3428 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3429 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3432 mono_mb_emit_stloc (mb, local_res);
3435 mono_mb_emit_add_to_local (mb, local_i, 1);
3438 mono_mb_emit_ldloc (mb, local_i);
3439 mono_mb_emit_ldloc (mb, local_len);
3440 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3444 mono_mb_emit_ldloc (mb, local_res);
3445 mono_mb_emit_byte (mb, CEE_RET);
3447 mb->skip_visibility = 1;
3448 #endif /* DISABLE_JIT */
3450 info = mono_wrapper_info_create (mb, subtype);
3455 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3456 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3457 } else if (callvirt) {
3458 new_key = g_new0 (SignaturePointerPair, 1);
3461 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3465 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3469 /* mono_method_print_code (res); */
3475 * the returned method invokes all methods in a multicast delegate.
3478 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3480 gboolean callvirt = FALSE;
3481 gboolean static_method_with_first_arg_bound = FALSE;
3482 MonoMethod *target_method = NULL;
3483 MonoMethodSignature *sig;
3485 sig = mono_signature_no_pinvoke (method);
3487 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3489 target_method = del->method;
3492 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3493 static_method_with_first_arg_bound = TRUE;
3494 target_method = del->method;
3497 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3501 MonoMethodSignature *ctor_sig;
3502 MonoMethodSignature *sig;
3505 /* protected by the marshal lock, contains CtorSigPair pointers */
3506 static GSList *strsig_list = NULL;
3508 static MonoMethodSignature *
3509 lookup_string_ctor_signature (MonoMethodSignature *sig)
3511 MonoMethodSignature *callsig;
3515 mono_marshal_lock ();
3517 for (item = strsig_list; item; item = item->next) {
3518 cs = (CtorSigPair *)item->data;
3519 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3520 * because it is lock-free.
3522 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3527 mono_marshal_unlock ();
3531 static MonoMethodSignature *
3532 add_string_ctor_signature (MonoMethod *method)
3534 MonoMethodSignature *callsig;
3537 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3538 callsig->ret = &mono_defaults.string_class->byval_arg;
3539 cs = g_new (CtorSigPair, 1);
3541 cs->ctor_sig = mono_method_signature (method);
3543 mono_marshal_lock ();
3544 strsig_list = g_slist_prepend (strsig_list, cs);
3545 mono_marshal_unlock ();
3550 * mono_marshal_get_string_ctor_signature:
3552 * Return the modified signature used by string ctors (they return the newly created
3555 MonoMethodSignature*
3556 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3558 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3560 sig = add_string_ctor_signature (method);
3566 get_runtime_invoke_type (MonoType *t, gboolean ret)
3569 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3571 /* Can't share this with 'I' as that needs another indirection */
3572 return &mono_defaults.int_class->this_arg;
3575 if (MONO_TYPE_IS_REFERENCE (t))
3576 return &mono_defaults.object_class->byval_arg;
3579 /* The result needs to be boxed */
3584 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3587 return &mono_defaults.sbyte_class->byval_arg;
3589 return &mono_defaults.int16_class->byval_arg;
3591 return &mono_defaults.int32_class->byval_arg;
3594 return &mono_defaults.int64_class->byval_arg;
3595 case MONO_TYPE_BOOLEAN:
3596 return &mono_defaults.byte_class->byval_arg;
3597 case MONO_TYPE_CHAR:
3598 return &mono_defaults.uint16_class->byval_arg;
3600 return &mono_defaults.int_class->byval_arg;
3601 case MONO_TYPE_VALUETYPE:
3602 if (t->data.klass->enumtype) {
3603 t = mono_class_enum_basetype (t->data.klass);
3613 * mono_marshal_get_runtime_invoke_sig:
3615 * Return a common signature used for sharing runtime invoke wrappers.
3617 static MonoMethodSignature*
3618 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3620 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3623 res->generic_param_count = 0;
3624 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3625 for (i = 0; i < res->param_count; ++i)
3626 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3632 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3634 /* Can't share wrappers which return a vtype since it needs to be boxed */
3635 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))
3638 return mono_metadata_signature_equal (sig1, sig2);
3646 * Emit the call to the wrapper method from a runtime invoke wrapper.
3649 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3650 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3652 gboolean virtual_, gboolean need_direct_wrapper)
3654 static MonoString *string_dummy = NULL;
3656 int *tmp_nullable_locals;
3657 gboolean void_ret = FALSE;
3658 gboolean string_ctor = method && method->string_ctor;
3660 /* to make it work with our special string constructors */
3661 if (!string_dummy) {
3662 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3663 string_dummy = mono_string_new_wrapper ("dummy");
3667 g_assert (sig->hasthis);
3668 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3673 if (mono_gc_is_moving ()) {
3674 mono_mb_emit_ptr (mb, &string_dummy);
3675 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3677 mono_mb_emit_ptr (mb, string_dummy);
3680 mono_mb_emit_ldarg (mb, 0);
3684 tmp_nullable_locals = g_new0 (int, sig->param_count);
3686 for (i = 0; i < sig->param_count; i++) {
3687 MonoType *t = sig->params [i];
3690 mono_mb_emit_ldarg (mb, 1);
3692 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3693 mono_mb_emit_byte (mb, CEE_ADD);
3697 mono_mb_emit_byte (mb, CEE_LDIND_I);
3698 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3699 * So to make this work we unbox it to a local variablee and push a reference to that.
3701 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3702 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3704 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3705 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3706 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3711 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3712 type = sig->params [i]->type;
3716 case MONO_TYPE_BOOLEAN:
3720 case MONO_TYPE_CHAR:
3729 mono_mb_emit_byte (mb, CEE_LDIND_I);
3730 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3732 case MONO_TYPE_STRING:
3733 case MONO_TYPE_CLASS:
3734 case MONO_TYPE_ARRAY:
3736 case MONO_TYPE_SZARRAY:
3737 case MONO_TYPE_OBJECT:
3738 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3740 case MONO_TYPE_GENERICINST:
3741 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3742 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3747 case MONO_TYPE_VALUETYPE:
3748 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3749 type = mono_class_enum_basetype (t->data.klass)->type;
3752 mono_mb_emit_byte (mb, CEE_LDIND_I);
3753 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3754 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3755 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3756 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3758 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3762 g_assert_not_reached ();
3767 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3768 } else if (need_direct_wrapper) {
3769 mono_mb_emit_op (mb, CEE_CALL, method);
3771 mono_mb_emit_ldarg (mb, 3);
3772 mono_mb_emit_calli (mb, callsig);
3775 if (sig->ret->byref) {
3777 g_assert_not_reached ();
3780 switch (sig->ret->type) {
3781 case MONO_TYPE_VOID:
3785 case MONO_TYPE_BOOLEAN:
3786 case MONO_TYPE_CHAR:
3799 case MONO_TYPE_VALUETYPE:
3800 case MONO_TYPE_TYPEDBYREF:
3801 case MONO_TYPE_GENERICINST:
3802 /* box value types */
3803 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3805 case MONO_TYPE_STRING:
3806 case MONO_TYPE_CLASS:
3807 case MONO_TYPE_ARRAY:
3808 case MONO_TYPE_SZARRAY:
3809 case MONO_TYPE_OBJECT:
3813 /* The result is an IntPtr */
3814 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3817 g_assert_not_reached ();
3821 mono_mb_emit_stloc (mb, loc_res);
3823 /* Convert back nullable-byref arguments */
3824 for (i = 0; i < sig->param_count; i++) {
3825 MonoType *t = sig->params [i];
3828 * Box the result and put it back into the array, the caller will have
3829 * to obtain it from there.
3831 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3832 mono_mb_emit_ldarg (mb, 1);
3833 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3834 mono_mb_emit_byte (mb, CEE_ADD);
3836 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3837 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3839 mono_mb_emit_byte (mb, CEE_STIND_REF);
3843 g_free (tmp_nullable_locals);
3847 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3848 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3849 gboolean virtual_, gboolean need_direct_wrapper)
3852 MonoExceptionClause *clause;
3853 int loc_res, loc_exc;
3855 /* The wrapper looks like this:
3861 * } catch (Exception e) {
3869 /* allocate local 0 (object) tmp */
3870 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3871 /* allocate local 1 (object) exc */
3872 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3874 /* *exc is assumed to be initialized to NULL by the caller */
3876 mono_mb_emit_byte (mb, CEE_LDARG_2);
3877 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3882 labels [1] = mono_mb_get_label (mb);
3883 emit_thread_force_interrupt_checkpoint (mb);
3884 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3886 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3888 /* Add a try clause around the call */
3889 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3890 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3891 clause->data.catch_class = mono_defaults.exception_class;
3892 clause->try_offset = labels [1];
3893 clause->try_len = mono_mb_get_label (mb) - labels [1];
3895 clause->handler_offset = mono_mb_get_label (mb);
3898 mono_mb_emit_stloc (mb, loc_exc);
3899 mono_mb_emit_byte (mb, CEE_LDARG_2);
3900 mono_mb_emit_ldloc (mb, loc_exc);
3901 mono_mb_emit_byte (mb, CEE_STIND_REF);
3903 mono_mb_emit_branch (mb, CEE_LEAVE);
3905 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3907 mono_mb_set_clauses (mb, 1, clause);
3909 mono_mb_patch_branch (mb, labels [2]);
3910 mono_mb_emit_ldloc (mb, loc_res);
3911 mono_mb_emit_byte (mb, CEE_RET);
3916 mono_mb_patch_branch (mb, labels [0]);
3917 emit_thread_force_interrupt_checkpoint (mb);
3918 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3920 mono_mb_emit_ldloc (mb, 0);
3921 mono_mb_emit_byte (mb, CEE_RET);
3926 * generates IL code for the runtime invoke function
3927 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3929 * we also catch exceptions if exc != null
3930 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3931 * it means that the compiled code for METHOD does not have to be looked up
3932 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3933 * its METHOD argument.
3936 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3938 MonoMethodSignature *sig, *csig, *callsig;
3939 MonoMethodBuilder *mb;
3940 GHashTable *cache = NULL;
3941 MonoClass *target_klass;
3942 MonoMethod *res = NULL;
3943 static MonoMethodSignature *cctor_signature = NULL;
3944 static MonoMethodSignature *finalize_signature = NULL;
3946 const char *param_names [16];
3947 gboolean need_direct_wrapper = FALSE;
3952 if (!cctor_signature) {
3953 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3954 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3956 if (!finalize_signature) {
3957 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3958 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3959 finalize_signature->hasthis = 1;
3963 need_direct_wrapper = TRUE;
3966 * Use a separate cache indexed by methods to speed things up and to avoid the
3967 * boundless mempool growth caused by the signature_dup stuff below.
3970 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3972 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3974 res = mono_marshal_find_in_cache (cache, method);
3978 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3979 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3981 * Array Get/Set/Address methods. The JIT implements them using inline code
3982 * so we need to create an invoke wrapper which calls the method directly.
3984 need_direct_wrapper = TRUE;
3987 if (method->string_ctor) {
3988 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3990 callsig = add_string_ctor_signature (method);
3991 /* Can't share this as we push a string as this */
3992 need_direct_wrapper = TRUE;
3994 if (method_is_dynamic (method))
3995 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3997 callsig = mono_method_signature (method);
4000 sig = mono_method_signature (method);
4002 target_klass = get_wrapper_target_class (method->klass->image);
4004 /* Try to share wrappers for non-corlib methods with simple signatures */
4005 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4006 callsig = cctor_signature;
4007 target_klass = mono_defaults.object_class;
4008 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4009 callsig = finalize_signature;
4010 target_klass = mono_defaults.object_class;
4013 if (need_direct_wrapper) {
4014 /* Already searched at the start */
4016 MonoMethodSignature *tmp_sig;
4018 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4019 GHashTable **cache_table = NULL;
4021 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4022 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4024 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4026 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4027 (GCompareFunc)runtime_invoke_signature_equal);
4029 /* from mono_marshal_find_in_cache */
4030 mono_marshal_lock ();
4031 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4032 mono_marshal_unlock ();
4039 /* Make a copy of the signature from the image mempool */
4041 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4045 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4047 csig->ret = &mono_defaults.object_class->byval_arg;
4048 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4049 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4051 csig->params [0] = &mono_defaults.object_class->byval_arg;
4052 csig->params [1] = &mono_defaults.int_class->byval_arg;
4053 csig->params [2] = &mono_defaults.int_class->byval_arg;
4054 csig->params [3] = &mono_defaults.int_class->byval_arg;
4057 /* This is called from runtime code so it has to be cdecl */
4058 csig->call_convention = MONO_CALL_C;
4061 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4062 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4066 param_names [0] = "this";
4067 param_names [1] = "params";
4068 param_names [2] = "exc";
4069 param_names [3] = "method";
4070 mono_mb_set_param_names (mb, param_names);
4072 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4075 if (need_direct_wrapper) {
4077 mb->skip_visibility = 1;
4079 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4080 info->d.runtime_invoke.method = method;
4081 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4083 /* taken from mono_mb_create_and_cache */
4084 mono_marshal_lock ();
4085 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4086 mono_marshal_unlock ();
4088 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4089 info->d.runtime_invoke.sig = callsig;
4091 /* Somebody may have created it before us */
4094 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4096 mono_marshal_lock ();
4097 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4099 GHashTable *direct_cache;
4101 g_hash_table_insert (cache, callsig, res);
4102 /* Can't insert it into wrapper_hash since the key is a signature */
4103 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4105 g_hash_table_insert (direct_cache, method, res);
4107 mono_free_method (newm);
4109 mono_marshal_unlock ();
4112 /* end mono_mb_create_and_cache */
4121 * mono_marshal_get_runtime_invoke_dynamic:
4123 * Return a method which can be used to invoke managed methods from native code
4125 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4126 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4127 * ARGS should point to an architecture specific structure containing
4128 * the arguments and space for the return value.
4129 * The other arguments are the same as for runtime_invoke (), except that
4130 * ARGS should contain the this argument too.
4131 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4132 * is only one copy of it, which is useful in full-aot.
4133 * The wrapper info for the wrapper is a WrapperInfo structure.
4136 mono_marshal_get_runtime_invoke_dynamic (void)
4138 static MonoMethod *method;
4139 MonoMethodSignature *csig;
4140 MonoExceptionClause *clause;
4141 MonoMethodBuilder *mb;
4149 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4151 csig->ret = &mono_defaults.void_class->byval_arg;
4152 csig->params [0] = &mono_defaults.int_class->byval_arg;
4153 csig->params [1] = &mono_defaults.int_class->byval_arg;
4154 csig->params [2] = &mono_defaults.int_class->byval_arg;
4155 csig->params [3] = &mono_defaults.int_class->byval_arg;
4157 name = g_strdup ("runtime_invoke_dynamic");
4158 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4162 /* allocate local 0 (object) tmp */
4163 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4164 /* allocate local 1 (object) exc */
4165 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4167 /* cond set *exc to null */
4168 mono_mb_emit_byte (mb, CEE_LDARG_1);
4169 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4170 mono_mb_emit_byte (mb, 3);
4171 mono_mb_emit_byte (mb, CEE_LDARG_1);
4172 mono_mb_emit_byte (mb, CEE_LDNULL);
4173 mono_mb_emit_byte (mb, CEE_STIND_REF);
4175 emit_thread_force_interrupt_checkpoint (mb);
4177 mono_mb_emit_byte (mb, CEE_LDARG_0);
4178 mono_mb_emit_byte (mb, CEE_LDARG_2);
4179 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4180 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4182 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4184 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4185 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4186 clause->try_len = mono_mb_get_label (mb);
4189 clause->data.filter_offset = mono_mb_get_label (mb);
4191 mono_mb_emit_byte (mb, CEE_POP);
4192 mono_mb_emit_byte (mb, CEE_LDARG_1);
4193 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4194 mono_mb_emit_byte (mb, CEE_PREFIX1);
4195 mono_mb_emit_byte (mb, CEE_CGT_UN);
4196 mono_mb_emit_byte (mb, CEE_PREFIX1);
4197 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4199 clause->handler_offset = mono_mb_get_label (mb);
4202 /* store exception */
4203 mono_mb_emit_stloc (mb, 1);
4205 mono_mb_emit_byte (mb, CEE_LDARG_1);
4206 mono_mb_emit_ldloc (mb, 1);
4207 mono_mb_emit_byte (mb, CEE_STIND_REF);
4209 mono_mb_emit_byte (mb, CEE_LDNULL);
4210 mono_mb_emit_stloc (mb, 0);
4212 /* Check for the abort exception */
4213 mono_mb_emit_ldloc (mb, 1);
4214 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4215 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4217 /* Delay the abort exception */
4218 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4220 mono_mb_patch_short_branch (mb, posna);
4221 mono_mb_emit_branch (mb, CEE_LEAVE);
4223 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4225 mono_mb_set_clauses (mb, 1, clause);
4228 mono_mb_patch_branch (mb, pos);
4229 //mono_mb_emit_ldloc (mb, 0);
4230 mono_mb_emit_byte (mb, CEE_RET);
4231 #endif /* DISABLE_JIT */
4233 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4235 mono_marshal_lock ();
4236 /* double-checked locking */
4238 method = mono_mb_create (mb, csig, 16, info);
4240 mono_marshal_unlock ();
4248 * mono_marshal_get_runtime_invoke_for_sig:
4250 * Return a runtime invoke wrapper for a given signature.
4253 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4255 MonoMethodSignature *csig, *callsig;
4256 MonoMethodBuilder *mb;
4258 GHashTable *cache = NULL;
4259 GHashTable **cache_table = NULL;
4260 MonoMethod *res = NULL;
4262 const char *param_names [16];
4265 /* A simplified version of mono_marshal_get_runtime_invoke */
4267 image = mono_defaults.corlib;
4269 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4271 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4273 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4274 (GCompareFunc)runtime_invoke_signature_equal);
4276 /* from mono_marshal_find_in_cache */
4277 mono_marshal_lock ();
4278 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4279 mono_marshal_unlock ();
4286 /* Make a copy of the signature from the image mempool */
4287 callsig = mono_metadata_signature_dup_full (image, callsig);
4289 csig = mono_metadata_signature_alloc (image, 4);
4290 csig->ret = &mono_defaults.object_class->byval_arg;
4291 csig->params [0] = &mono_defaults.object_class->byval_arg;
4292 csig->params [1] = &mono_defaults.int_class->byval_arg;
4293 csig->params [2] = &mono_defaults.int_class->byval_arg;
4294 csig->params [3] = &mono_defaults.int_class->byval_arg;
4297 /* This is called from runtime code so it has to be cdecl */
4298 csig->call_convention = MONO_CALL_C;
4301 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4302 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4306 param_names [0] = "this";
4307 param_names [1] = "params";
4308 param_names [2] = "exc";
4309 param_names [3] = "method";
4310 mono_mb_set_param_names (mb, param_names);
4312 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4315 /* taken from mono_mb_create_and_cache */
4316 mono_marshal_lock ();
4317 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4318 mono_marshal_unlock ();
4320 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4321 info->d.runtime_invoke.sig = callsig;
4323 /* Somebody may have created it before us */
4326 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4328 mono_marshal_lock ();
4329 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4332 g_hash_table_insert (cache, callsig, res);
4334 mono_free_method (newm);
4336 mono_marshal_unlock ();
4339 /* end mono_mb_create_and_cache */
4348 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4350 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4351 klass->name_space, klass->name);
4353 mono_mb_emit_exception_marshal_directive (mb, msg);
4358 * generates IL code for the icall wrapper (the generated method
4359 * calls the unmanaged code in func)
4360 * The wrapper info for the wrapper is a WrapperInfo structure.
4363 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4365 MonoMethodSignature *csig, *csig2;
4366 MonoMethodBuilder *mb;
4371 g_assert (sig->pinvoke);
4373 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4375 mb->method->save_lmf = 1;
4377 /* Add an explicit this argument */
4379 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4381 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4385 mono_mb_emit_byte (mb, CEE_LDARG_0);
4387 for (i = 0; i < sig->param_count; i++)
4388 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4391 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4392 mono_mb_emit_calli (mb, csig2);
4393 if (check_exceptions)
4394 emit_thread_interrupt_checkpoint (mb);
4395 mono_mb_emit_byte (mb, CEE_RET);
4398 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4400 if (csig->call_convention == MONO_CALL_VARARG)
4401 csig->call_convention = 0;
4403 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4404 info->d.icall.func = (gpointer)func;
4405 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4412 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4413 MonoMarshalSpec *spec,
4414 int conv_arg, MonoType **conv_arg_type,
4415 MarshalAction action)
4418 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4419 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4425 static MonoClass *ICustomMarshaler = NULL;
4426 static MonoMethod *cleanup_native, *cleanup_managed;
4427 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4428 MonoMethod *get_instance = NULL;
4429 MonoMethodBuilder *mb = m->mb;
4430 char *exception_msg = NULL;
4434 if (!ICustomMarshaler) {
4435 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4437 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4438 goto handle_exception;
4441 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4442 g_assert (cleanup_native);
4443 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4444 g_assert (cleanup_managed);
4445 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4446 g_assert (marshal_managed_to_native);
4447 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4448 g_assert (marshal_native_to_managed);
4450 mono_memory_barrier ();
4451 ICustomMarshaler = klass;
4454 if (spec->data.custom_data.image)
4455 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4457 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4458 g_assert (mtype != NULL);
4459 mono_error_assert_ok (&error);
4460 mklass = mono_class_from_mono_type (mtype);
4461 g_assert (mklass != NULL);
4463 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4464 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4466 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4468 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4469 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4470 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4471 (get_sig->params [0]->type != MONO_TYPE_STRING))
4472 get_instance = NULL;
4476 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);
4479 /* Throw exception and emit compensation code if neccesary */
4480 if (exception_msg) {
4482 case MARSHAL_ACTION_CONV_IN:
4483 case MARSHAL_ACTION_CONV_RESULT:
4484 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4485 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4486 mono_mb_emit_byte (mb, CEE_POP);
4488 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4489 g_free (exception_msg);
4492 case MARSHAL_ACTION_PUSH:
4493 mono_mb_emit_byte (mb, CEE_LDNULL);
4501 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4502 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4505 case MARSHAL_ACTION_CONV_IN:
4507 case MONO_TYPE_CLASS:
4508 case MONO_TYPE_OBJECT:
4509 case MONO_TYPE_STRING:
4510 case MONO_TYPE_ARRAY:
4511 case MONO_TYPE_SZARRAY:
4512 case MONO_TYPE_VALUETYPE:
4516 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4517 g_assert_not_reached ();
4521 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4523 mono_mb_emit_byte (mb, CEE_LDNULL);
4524 mono_mb_emit_stloc (mb, conv_arg);
4526 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4529 /* Minic MS.NET behavior */
4530 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4533 /* Check for null */
4534 mono_mb_emit_ldarg (mb, argnum);
4536 mono_mb_emit_byte (mb, CEE_LDIND_I);
4537 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4539 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4541 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4543 mono_mb_emit_ldarg (mb, argnum);
4545 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4547 if (t->type == MONO_TYPE_VALUETYPE) {
4549 * Since we can't determine the type of the argument, we
4550 * will assume the unmanaged function takes a pointer.
4552 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4554 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4557 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4558 mono_mb_emit_stloc (mb, conv_arg);
4560 mono_mb_patch_branch (mb, pos2);
4563 case MARSHAL_ACTION_CONV_OUT:
4564 /* Check for null */
4565 mono_mb_emit_ldloc (mb, conv_arg);
4566 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4569 mono_mb_emit_ldarg (mb, argnum);
4571 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4573 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4575 mono_mb_emit_ldloc (mb, conv_arg);
4576 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4577 mono_mb_emit_byte (mb, CEE_STIND_REF);
4578 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4579 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4581 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4583 mono_mb_emit_ldloc (mb, conv_arg);
4584 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4586 /* We have nowhere to store the result */
4587 mono_mb_emit_byte (mb, CEE_POP);
4590 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4592 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4594 mono_mb_emit_ldloc (mb, conv_arg);
4596 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4598 mono_mb_patch_branch (mb, pos2);
4601 case MARSHAL_ACTION_PUSH:
4603 mono_mb_emit_ldloc_addr (mb, conv_arg);
4605 mono_mb_emit_ldloc (mb, conv_arg);
4608 case MARSHAL_ACTION_CONV_RESULT:
4609 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4611 mono_mb_emit_stloc (mb, 3);
4613 mono_mb_emit_ldloc (mb, 3);
4614 mono_mb_emit_stloc (mb, loc1);
4616 /* Check for null */
4617 mono_mb_emit_ldloc (mb, 3);
4618 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4620 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4622 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4623 mono_mb_emit_byte (mb, CEE_DUP);
4625 mono_mb_emit_ldloc (mb, 3);
4626 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4627 mono_mb_emit_stloc (mb, 3);
4629 mono_mb_emit_ldloc (mb, loc1);
4630 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4632 mono_mb_patch_branch (mb, pos2);
4635 case MARSHAL_ACTION_MANAGED_CONV_IN:
4636 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4638 mono_mb_emit_byte (mb, CEE_LDNULL);
4639 mono_mb_emit_stloc (mb, conv_arg);
4641 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4644 /* Check for null */
4645 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_byte (mb, CEE_LDIND_I);
4648 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4650 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4651 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4653 mono_mb_emit_ldarg (mb, argnum);
4655 mono_mb_emit_byte (mb, CEE_LDIND_I);
4657 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4658 mono_mb_emit_stloc (mb, conv_arg);
4660 mono_mb_patch_branch (mb, pos2);
4663 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4664 g_assert (!t->byref);
4666 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4668 mono_mb_emit_stloc (mb, 3);
4670 mono_mb_emit_ldloc (mb, 3);
4671 mono_mb_emit_stloc (mb, loc1);
4673 /* Check for null */
4674 mono_mb_emit_ldloc (mb, 3);
4675 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4677 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4678 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4679 mono_mb_emit_byte (mb, CEE_DUP);
4681 mono_mb_emit_ldloc (mb, 3);
4682 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4683 mono_mb_emit_stloc (mb, 3);
4685 mono_mb_emit_ldloc (mb, loc1);
4686 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4688 mono_mb_patch_branch (mb, pos2);
4691 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4693 /* Check for null */
4694 mono_mb_emit_ldloc (mb, conv_arg);
4695 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4698 mono_mb_emit_ldarg (mb, argnum);
4700 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4702 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4704 mono_mb_emit_ldloc (mb, conv_arg);
4705 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4706 mono_mb_emit_byte (mb, CEE_STIND_I);
4709 /* Call CleanUpManagedData */
4710 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4712 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4714 mono_mb_emit_ldloc (mb, conv_arg);
4715 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4717 mono_mb_patch_branch (mb, pos2);
4721 g_assert_not_reached ();
4729 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4730 MonoMarshalSpec *spec,
4731 int conv_arg, MonoType **conv_arg_type,
4732 MarshalAction action)
4735 MonoMethodBuilder *mb = m->mb;
4738 case MARSHAL_ACTION_CONV_IN: {
4739 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4741 g_assert (t->type == MONO_TYPE_OBJECT);
4742 g_assert (!t->byref);
4744 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4745 mono_mb_emit_ldarg (mb, argnum);
4746 mono_mb_emit_icon (mb, encoding);
4747 mono_mb_emit_icon (mb, t->attrs);
4748 mono_mb_emit_icall (mb, mono_marshal_asany);
4749 mono_mb_emit_stloc (mb, conv_arg);
4753 case MARSHAL_ACTION_PUSH:
4754 mono_mb_emit_ldloc (mb, conv_arg);
4757 case MARSHAL_ACTION_CONV_OUT: {
4758 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4760 mono_mb_emit_ldarg (mb, argnum);
4761 mono_mb_emit_ldloc (mb, conv_arg);
4762 mono_mb_emit_icon (mb, encoding);
4763 mono_mb_emit_icon (mb, t->attrs);
4764 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4769 g_assert_not_reached ();
4776 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4777 MonoMarshalSpec *spec,
4778 int conv_arg, MonoType **conv_arg_type,
4779 MarshalAction action)
4782 MonoMethodBuilder *mb = m->mb;
4783 MonoClass *klass, *date_time_class;
4786 klass = mono_class_from_mono_type (t);
4788 date_time_class = mono_class_get_date_time_class ();
4791 case MARSHAL_ACTION_CONV_IN:
4792 if (klass == date_time_class) {
4793 /* Convert it to an OLE DATE type */
4794 static MonoMethod *to_oadate;
4797 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4798 g_assert (to_oadate);
4800 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4803 mono_mb_emit_ldarg (mb, argnum);
4804 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4807 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4809 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4811 mono_mb_emit_ldarg_addr (mb, argnum);
4812 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4813 mono_mb_emit_stloc (mb, conv_arg);
4817 mono_mb_patch_branch (mb, pos);
4821 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4822 klass->blittable || klass->enumtype)
4825 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4827 /* store the address of the source into local variable 0 */
4829 mono_mb_emit_ldarg (mb, argnum);
4831 mono_mb_emit_ldarg_addr (mb, argnum);
4833 mono_mb_emit_stloc (mb, 0);
4835 /* allocate space for the native struct and
4836 * store the address into local variable 1 (dest) */
4837 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4838 mono_mb_emit_byte (mb, CEE_PREFIX1);
4839 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4840 mono_mb_emit_stloc (mb, conv_arg);
4843 mono_mb_emit_ldloc (mb, 0);
4844 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4847 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4849 mono_mb_emit_ldloc (mb, conv_arg);
4850 mono_mb_emit_stloc (mb, 1);
4852 /* emit valuetype conversion code */
4853 emit_struct_conv (mb, klass, FALSE);
4857 mono_mb_patch_branch (mb, pos);
4860 case MARSHAL_ACTION_PUSH:
4861 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4863 g_assert (!t->byref);
4865 /* Have to change the signature since the vtype is passed byref */
4866 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4868 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4869 klass->blittable || klass->enumtype)
4870 mono_mb_emit_ldarg_addr (mb, argnum);
4872 mono_mb_emit_ldloc (mb, conv_arg);
4876 if (klass == date_time_class) {
4878 mono_mb_emit_ldloc_addr (mb, conv_arg);
4880 mono_mb_emit_ldloc (mb, conv_arg);
4884 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4885 klass->blittable || klass->enumtype) {
4886 mono_mb_emit_ldarg (mb, argnum);
4889 mono_mb_emit_ldloc (mb, conv_arg);
4891 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4892 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4896 case MARSHAL_ACTION_CONV_OUT:
4897 if (klass == date_time_class) {
4898 /* Convert from an OLE DATE type */
4899 static MonoMethod *from_oadate;
4904 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4906 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4907 g_assert (from_oadate);
4909 mono_mb_emit_ldarg (mb, argnum);
4910 mono_mb_emit_ldloc (mb, conv_arg);
4911 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4912 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4917 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4918 klass->blittable || klass->enumtype)
4922 /* dst = argument */
4923 mono_mb_emit_ldarg (mb, argnum);
4924 mono_mb_emit_stloc (mb, 1);
4926 mono_mb_emit_ldloc (mb, 1);
4927 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4929 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4930 /* src = tmp_locals [i] */
4931 mono_mb_emit_ldloc (mb, conv_arg);
4932 mono_mb_emit_stloc (mb, 0);
4934 /* emit valuetype conversion code */
4935 emit_struct_conv (mb, klass, TRUE);
4939 emit_struct_free (mb, klass, conv_arg);
4942 mono_mb_patch_branch (mb, pos);
4945 case MARSHAL_ACTION_CONV_RESULT:
4946 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4948 mono_mb_emit_stloc (mb, 3);
4952 /* load pointer to returned value type */
4953 g_assert (m->vtaddr_var);
4954 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4955 /* store the address of the source into local variable 0 */
4956 mono_mb_emit_stloc (mb, 0);
4958 mono_mb_emit_ldloc_addr (mb, 3);
4959 mono_mb_emit_stloc (mb, 1);
4961 /* emit valuetype conversion code */
4962 emit_struct_conv (mb, klass, TRUE);
4965 case MARSHAL_ACTION_MANAGED_CONV_IN:
4966 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4967 klass->blittable || klass->enumtype) {
4972 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4974 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4978 mono_mb_emit_ldarg (mb, argnum);
4980 mono_mb_emit_ldarg_addr (mb, argnum);
4981 mono_mb_emit_stloc (mb, 0);
4984 mono_mb_emit_ldloc (mb, 0);
4985 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4988 mono_mb_emit_ldloc_addr (mb, conv_arg);
4989 mono_mb_emit_stloc (mb, 1);
4991 /* emit valuetype conversion code */
4992 emit_struct_conv (mb, klass, TRUE);
4995 mono_mb_patch_branch (mb, pos);
4998 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4999 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5000 klass->blittable || klass->enumtype) {
5004 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5007 /* Check for null */
5008 mono_mb_emit_ldarg (mb, argnum);
5009 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5012 mono_mb_emit_ldloc_addr (mb, conv_arg);
5013 mono_mb_emit_stloc (mb, 0);
5016 mono_mb_emit_ldarg (mb, argnum);
5017 mono_mb_emit_stloc (mb, 1);
5019 /* emit valuetype conversion code */
5020 emit_struct_conv (mb, klass, FALSE);
5022 mono_mb_patch_branch (mb, pos2);
5025 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5026 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5027 klass->blittable || klass->enumtype) {
5028 mono_mb_emit_stloc (mb, 3);
5033 /* load pointer to returned value type */
5034 g_assert (m->vtaddr_var);
5035 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5037 /* store the address of the source into local variable 0 */
5038 mono_mb_emit_stloc (mb, 0);
5039 /* allocate space for the native struct and
5040 * store the address into dst_ptr */
5041 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5042 m->retobj_class = klass;
5043 g_assert (m->retobj_var);
5044 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5045 mono_mb_emit_byte (mb, CEE_CONV_I);
5046 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5047 mono_mb_emit_stloc (mb, 1);
5048 mono_mb_emit_ldloc (mb, 1);
5049 mono_mb_emit_stloc (mb, m->retobj_var);
5051 /* emit valuetype conversion code */
5052 emit_struct_conv (mb, klass, FALSE);
5056 g_assert_not_reached ();
5063 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5064 MonoMarshalSpec *spec,
5065 int conv_arg, MonoType **conv_arg_type,
5066 MarshalAction action)
5070 case MARSHAL_ACTION_CONV_IN:
5071 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5073 case MARSHAL_ACTION_MANAGED_CONV_IN:
5074 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5078 MonoMethodBuilder *mb = m->mb;
5079 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5080 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5084 case MARSHAL_ACTION_CONV_IN:
5085 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5086 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5089 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5092 mono_mb_emit_ldarg (mb, argnum);
5093 mono_mb_emit_byte (mb, CEE_LDIND_I);
5095 mono_mb_emit_ldarg (mb, argnum);
5099 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5100 mono_mb_emit_exception_marshal_directive (mb, msg);
5102 mono_mb_emit_icall (mb, conv_to_icall (conv));
5104 mono_mb_emit_stloc (mb, conv_arg);
5108 case MARSHAL_ACTION_CONV_OUT:
5109 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5111 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5112 mono_mb_emit_exception_marshal_directive (mb, msg);
5116 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5117 static MonoMethod *m;
5120 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5125 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5126 mono_mb_emit_exception_marshal_directive (mb, msg);
5131 * Have to allocate a new string with the same length as the original, and
5132 * copy the contents of the buffer pointed to by CONV_ARG into it.
5134 g_assert (t->byref);
5135 mono_mb_emit_ldarg (mb, argnum);
5136 mono_mb_emit_ldloc (mb, conv_arg);
5137 mono_mb_emit_ldarg (mb, argnum);
5138 mono_mb_emit_byte (mb, CEE_LDIND_I);
5139 mono_mb_emit_managed_call (mb, m, NULL);
5140 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5141 mono_mb_emit_byte (mb, CEE_STIND_REF);
5142 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5143 mono_mb_emit_ldarg (mb, argnum);
5144 mono_mb_emit_ldloc (mb, conv_arg);
5145 mono_mb_emit_icall (mb, conv_to_icall (conv));
5146 mono_mb_emit_byte (mb, CEE_STIND_REF);
5151 mono_mb_emit_ldloc (mb, conv_arg);
5152 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5153 mono_mb_emit_icall (mb, mono_free_bstr);
5155 mono_mb_emit_icall (mb, mono_marshal_free);
5159 case MARSHAL_ACTION_PUSH:
5160 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5161 mono_mb_emit_ldloc_addr (mb, conv_arg);
5163 mono_mb_emit_ldloc (mb, conv_arg);
5166 case MARSHAL_ACTION_CONV_RESULT:
5167 mono_mb_emit_stloc (mb, 0);
5169 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5171 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5172 mono_mb_emit_exception_marshal_directive (mb, msg);
5176 mono_mb_emit_ldloc (mb, 0);
5177 mono_mb_emit_icall (mb, conv_to_icall (conv));
5178 mono_mb_emit_stloc (mb, 3);
5180 /* free the string */
5181 mono_mb_emit_ldloc (mb, 0);
5182 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5183 mono_mb_emit_icall (mb, mono_free_bstr);
5185 mono_mb_emit_icall (mb, mono_marshal_free);
5188 case MARSHAL_ACTION_MANAGED_CONV_IN:
5189 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5191 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5194 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5198 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5200 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5201 mono_mb_emit_exception_marshal_directive (mb, msg);
5205 mono_mb_emit_ldarg (mb, argnum);
5207 mono_mb_emit_byte (mb, CEE_LDIND_I);
5208 mono_mb_emit_icall (mb, conv_to_icall (conv));
5209 mono_mb_emit_stloc (mb, conv_arg);
5212 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5215 mono_mb_emit_ldarg (mb, argnum);
5216 mono_mb_emit_ldloc (mb, conv_arg);
5217 mono_mb_emit_icall (mb, conv_to_icall (conv));
5218 mono_mb_emit_byte (mb, CEE_STIND_I);
5223 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5224 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5225 /* We need to make a copy so the caller is able to free it */
5226 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5228 mono_mb_emit_icall (mb, conv_to_icall (conv));
5229 mono_mb_emit_stloc (mb, 3);
5233 g_assert_not_reached ();
5241 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5242 MonoMarshalSpec *spec, int conv_arg,
5243 MonoType **conv_arg_type, MarshalAction action)
5246 if (action == MARSHAL_ACTION_CONV_IN)
5247 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5249 MonoMethodBuilder *mb = m->mb;
5252 case MARSHAL_ACTION_CONV_IN: {
5253 MonoType *intptr_type;
5254 int dar_release_slot, pos;
5256 intptr_type = &mono_defaults.int_class->byval_arg;
5257 conv_arg = mono_mb_add_local (mb, intptr_type);
5258 *conv_arg_type = intptr_type;
5260 if (!sh_dangerous_add_ref)
5261 init_safe_handle ();
5263 mono_mb_emit_ldarg (mb, argnum);
5264 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5265 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5267 mono_mb_patch_branch (mb, pos);
5270 * My tests in show that ref SafeHandles are not really
5271 * passed as ref objects. Instead a NULL is passed as the
5274 mono_mb_emit_icon (mb, 0);
5275 mono_mb_emit_stloc (mb, conv_arg);
5279 /* Create local to hold the ref parameter to DangerousAddRef */
5280 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5282 /* set release = false; */
5283 mono_mb_emit_icon (mb, 0);
5284 mono_mb_emit_stloc (mb, dar_release_slot);
5286 /* safehandle.DangerousAddRef (ref release) */
5287 mono_mb_emit_ldarg (mb, argnum);
5288 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5289 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5291 /* Pull the handle field from SafeHandle */
5292 mono_mb_emit_ldarg (mb, argnum);
5293 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5294 mono_mb_emit_byte (mb, CEE_LDIND_I);
5295 mono_mb_emit_stloc (mb, conv_arg);
5300 case MARSHAL_ACTION_PUSH:
5302 mono_mb_emit_ldloc_addr (mb, conv_arg);
5304 mono_mb_emit_ldloc (mb, conv_arg);
5307 case MARSHAL_ACTION_CONV_OUT: {
5308 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5309 int dar_release_slot = conv_arg + 1;
5312 if (!sh_dangerous_release)
5313 init_safe_handle ();
5319 * My tests indicate that ref SafeHandles parameters are not actually
5320 * passed by ref, but instead a new Handle is created regardless of
5321 * whether a change happens in the unmanaged side.
5323 * Also, the Handle is created before calling into unmanaged code,
5324 * but we do not support that mechanism (getting to the original
5325 * handle) and it makes no difference where we create this
5327 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5329 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5332 /* refval = new SafeHandleDerived ()*/
5333 mono_mb_emit_ldarg (mb, argnum);
5334 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5335 mono_mb_emit_byte (mb, CEE_STIND_REF);
5337 /* refval.handle = returned_handle */
5338 mono_mb_emit_ldarg (mb, argnum);
5339 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5340 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5341 mono_mb_emit_ldloc (mb, conv_arg);
5342 mono_mb_emit_byte (mb, CEE_STIND_I);
5344 mono_mb_emit_ldloc (mb, dar_release_slot);
5345 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5346 mono_mb_emit_ldarg (mb, argnum);
5347 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5348 mono_mb_patch_branch (mb, label_next);
5353 case MARSHAL_ACTION_CONV_RESULT: {
5354 MonoMethod *ctor = NULL;
5355 int intptr_handle_slot;
5357 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5358 mono_mb_emit_byte (mb, CEE_POP);
5359 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5363 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5365 mono_mb_emit_byte (mb, CEE_POP);
5366 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5369 /* Store the IntPtr results into a local */
5370 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5371 mono_mb_emit_stloc (mb, intptr_handle_slot);
5373 /* Create return value */
5374 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5375 mono_mb_emit_stloc (mb, 3);
5377 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5378 mono_mb_emit_ldloc (mb, 3);
5379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5380 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5381 mono_mb_emit_byte (mb, CEE_STIND_I);
5385 case MARSHAL_ACTION_MANAGED_CONV_IN:
5386 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5389 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5390 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5393 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5394 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5397 printf ("Unhandled case for MarshalAction: %d\n", action);
5405 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5406 MonoMarshalSpec *spec, int conv_arg,
5407 MonoType **conv_arg_type, MarshalAction action)
5410 if (action == MARSHAL_ACTION_CONV_IN)
5411 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5413 MonoMethodBuilder *mb = m->mb;
5416 case MARSHAL_ACTION_CONV_IN: {
5417 MonoType *intptr_type;
5419 intptr_type = &mono_defaults.int_class->byval_arg;
5420 conv_arg = mono_mb_add_local (mb, intptr_type);
5421 *conv_arg_type = intptr_type;
5424 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5425 mono_mb_emit_exception_marshal_directive (mb, msg);
5428 mono_mb_emit_ldarg_addr (mb, argnum);
5429 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5430 mono_mb_emit_byte (mb, CEE_ADD);
5431 mono_mb_emit_byte (mb, CEE_LDIND_I);
5432 mono_mb_emit_stloc (mb, conv_arg);
5436 case MARSHAL_ACTION_PUSH:
5437 mono_mb_emit_ldloc (mb, conv_arg);
5440 case MARSHAL_ACTION_CONV_OUT: {
5441 /* no resource release required */
5445 case MARSHAL_ACTION_CONV_RESULT: {
5446 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5447 mono_mb_emit_exception_marshal_directive (mb, msg);
5451 case MARSHAL_ACTION_MANAGED_CONV_IN:
5452 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5455 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5456 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5459 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5460 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5463 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5471 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5472 MonoMarshalSpec *spec,
5473 int conv_arg, MonoType **conv_arg_type,
5474 MarshalAction action)
5477 if (action == MARSHAL_ACTION_CONV_IN)
5478 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5480 MonoMethodBuilder *mb = m->mb;
5481 MonoClass *klass = mono_class_from_mono_type (t);
5485 case MARSHAL_ACTION_CONV_IN:
5486 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5487 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5489 m->orig_conv_args [argnum] = 0;
5491 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5492 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5493 mono_mb_emit_exception_marshal_directive (mb, msg);
5497 if (klass->delegate) {
5499 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5500 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5501 mono_mb_emit_exception_marshal_directive (mb, msg);
5503 mono_mb_emit_byte (mb, CEE_LDNULL);
5504 mono_mb_emit_stloc (mb, conv_arg);
5506 mono_mb_emit_ldarg (mb, argnum);
5507 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5508 mono_mb_emit_stloc (mb, conv_arg);
5510 } else if (klass == mono_defaults.stringbuilder_class) {
5511 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5512 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5516 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5517 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5518 mono_mb_emit_exception_marshal_directive (mb, msg);
5524 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5528 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5529 mono_mb_emit_exception_marshal_directive (mb, msg);
5533 mono_mb_emit_ldarg (mb, argnum);
5535 mono_mb_emit_byte (mb, CEE_LDIND_I);
5537 mono_mb_emit_icall (mb, conv_to_icall (conv));
5538 mono_mb_emit_stloc (mb, conv_arg);
5539 } else if (klass->blittable) {
5540 mono_mb_emit_byte (mb, CEE_LDNULL);
5541 mono_mb_emit_stloc (mb, conv_arg);
5543 mono_mb_emit_ldarg (mb, argnum);
5544 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5548 mono_mb_emit_stloc (mb, conv_arg);
5550 mono_mb_patch_branch (mb, pos);
5553 mono_mb_emit_byte (mb, CEE_LDNULL);
5554 mono_mb_emit_stloc (mb, conv_arg);
5557 /* we dont need any conversions for out parameters */
5558 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5561 mono_mb_emit_ldarg (mb, argnum);
5562 mono_mb_emit_byte (mb, CEE_LDIND_I);
5565 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5567 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5570 /* store the address of the source into local variable 0 */
5571 mono_mb_emit_stloc (mb, 0);
5572 mono_mb_emit_ldloc (mb, 0);
5573 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5575 /* allocate space for the native struct and store the address */
5576 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5577 mono_mb_emit_byte (mb, CEE_PREFIX1);
5578 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5579 mono_mb_emit_stloc (mb, conv_arg);
5582 /* Need to store the original buffer so we can free it later */
5583 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5584 mono_mb_emit_ldloc (mb, conv_arg);
5585 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5588 /* set the src_ptr */
5589 mono_mb_emit_ldloc (mb, 0);
5590 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5591 mono_mb_emit_stloc (mb, 0);
5594 mono_mb_emit_ldloc (mb, conv_arg);
5595 mono_mb_emit_stloc (mb, 1);
5597 /* emit valuetype conversion code */
5598 emit_struct_conv (mb, klass, FALSE);
5600 mono_mb_patch_branch (mb, pos);
5604 case MARSHAL_ACTION_CONV_OUT:
5605 if (klass == mono_defaults.stringbuilder_class) {
5607 MonoMarshalNative encoding;
5608 MonoMarshalConv conv;
5610 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5611 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5613 g_assert (encoding != -1);
5616 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5620 mono_mb_emit_ldarg (mb, argnum);
5621 mono_mb_emit_ldloc (mb, conv_arg);
5624 case MONO_NATIVE_LPWSTR:
5625 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5627 case MONO_NATIVE_LPSTR:
5628 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5631 g_assert_not_reached ();
5634 mono_mb_emit_byte (mb, CEE_STIND_REF);
5636 mono_mb_emit_ldarg (mb, argnum);
5637 mono_mb_emit_ldloc (mb, conv_arg);
5639 mono_mb_emit_icall (mb, conv_to_icall (conv));
5643 mono_mb_emit_ldloc (mb, conv_arg);
5644 mono_mb_emit_icall (mb, mono_marshal_free);
5649 if (klass->delegate) {
5651 mono_mb_emit_ldarg (mb, argnum);
5652 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5653 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5654 mono_mb_emit_ldloc (mb, conv_arg);
5655 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5656 mono_mb_emit_byte (mb, CEE_STIND_REF);
5661 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5662 /* allocate a new object */
5663 mono_mb_emit_ldarg (mb, argnum);
5664 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5665 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5666 mono_mb_emit_byte (mb, CEE_STIND_REF);
5669 /* dst = *argument */
5670 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_byte (mb, CEE_LDIND_I);
5675 mono_mb_emit_stloc (mb, 1);
5677 mono_mb_emit_ldloc (mb, 1);
5678 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5680 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5681 mono_mb_emit_ldloc (mb, 1);
5682 mono_mb_emit_icon (mb, sizeof (MonoObject));
5683 mono_mb_emit_byte (mb, CEE_ADD);
5684 mono_mb_emit_stloc (mb, 1);
5686 /* src = tmp_locals [i] */
5687 mono_mb_emit_ldloc (mb, conv_arg);
5688 mono_mb_emit_stloc (mb, 0);
5690 /* emit valuetype conversion code */
5691 emit_struct_conv (mb, klass, TRUE);
5693 /* Free the structure returned by the native code */
5694 emit_struct_free (mb, klass, conv_arg);
5696 if (m->orig_conv_args [argnum]) {
5698 * If the native function changed the pointer, then free
5699 * the original structure plus the new pointer.
5701 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5702 mono_mb_emit_ldloc (mb, conv_arg);
5703 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5705 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5706 g_assert (m->orig_conv_args [argnum]);
5708 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5711 mono_mb_emit_ldloc (mb, conv_arg);
5712 mono_mb_emit_icall (mb, mono_marshal_free);
5714 mono_mb_patch_branch (mb, pos2);
5718 /* Free the original structure passed to native code */
5719 emit_struct_free (mb, klass, conv_arg);
5721 mono_mb_patch_branch (mb, pos);
5724 case MARSHAL_ACTION_PUSH:
5726 mono_mb_emit_ldloc_addr (mb, conv_arg);
5728 mono_mb_emit_ldloc (mb, conv_arg);
5731 case MARSHAL_ACTION_CONV_RESULT:
5732 if (klass->delegate) {
5733 g_assert (!t->byref);
5734 mono_mb_emit_stloc (mb, 0);
5735 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5736 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5737 mono_mb_emit_ldloc (mb, 0);
5738 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5739 mono_mb_emit_stloc (mb, 3);
5742 mono_mb_emit_stloc (mb, 0);
5744 /* Make a copy since emit_conv modifies local 0 */
5745 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5746 mono_mb_emit_ldloc (mb, 0);
5747 mono_mb_emit_stloc (mb, loc);
5749 mono_mb_emit_byte (mb, CEE_LDNULL);
5750 mono_mb_emit_stloc (mb, 3);
5752 mono_mb_emit_ldloc (mb, 0);
5753 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5755 /* allocate result object */
5757 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5758 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5759 mono_mb_emit_stloc (mb, 3);
5763 mono_mb_emit_ldloc (mb, 3);
5764 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5765 mono_mb_emit_stloc (mb, 1);
5767 /* emit conversion code */
5768 emit_struct_conv (mb, klass, TRUE);
5770 emit_struct_free (mb, klass, loc);
5772 /* Free the pointer allocated by unmanaged code */
5773 mono_mb_emit_ldloc (mb, loc);
5774 mono_mb_emit_icall (mb, mono_marshal_free);
5775 mono_mb_patch_branch (mb, pos);
5779 case MARSHAL_ACTION_MANAGED_CONV_IN:
5780 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5782 if (klass->delegate) {
5783 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5784 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5785 mono_mb_emit_ldarg (mb, argnum);
5787 mono_mb_emit_byte (mb, CEE_LDIND_I);
5788 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5789 mono_mb_emit_stloc (mb, conv_arg);
5793 if (klass == mono_defaults.stringbuilder_class) {
5794 MonoMarshalNative encoding;
5796 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5799 g_assert (encoding == MONO_NATIVE_LPSTR);
5801 g_assert (!t->byref);
5802 g_assert (encoding != -1);
5804 mono_mb_emit_ldarg (mb, argnum);
5805 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5806 mono_mb_emit_stloc (mb, conv_arg);
5810 /* The class can not have an automatic layout */
5811 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5812 mono_mb_emit_auto_layout_exception (mb, klass);
5816 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5817 mono_mb_emit_byte (mb, CEE_LDNULL);
5818 mono_mb_emit_stloc (mb, conv_arg);
5823 mono_mb_emit_ldarg (mb, argnum);
5827 /* Check for NULL and raise an exception */
5828 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5830 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5832 mono_mb_patch_branch (mb, pos2);
5833 mono_mb_emit_ldarg (mb, argnum);
5834 mono_mb_emit_byte (mb, CEE_LDIND_I);
5837 mono_mb_emit_stloc (mb, 0);
5839 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5840 mono_mb_emit_stloc (mb, conv_arg);
5842 mono_mb_emit_ldloc (mb, 0);
5843 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5845 /* Create and set dst */
5846 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5847 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5848 mono_mb_emit_stloc (mb, conv_arg);
5849 mono_mb_emit_ldloc (mb, conv_arg);
5850 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5851 mono_mb_emit_stloc (mb, 1);
5853 /* emit valuetype conversion code */
5854 emit_struct_conv (mb, klass, TRUE);
5856 mono_mb_patch_branch (mb, pos);
5859 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5860 if (klass->delegate) {
5862 mono_mb_emit_ldarg (mb, argnum);
5863 mono_mb_emit_ldloc (mb, conv_arg);
5864 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5865 mono_mb_emit_byte (mb, CEE_STIND_I);
5871 /* Check for null */
5872 mono_mb_emit_ldloc (mb, conv_arg);
5873 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5874 mono_mb_emit_ldarg (mb, argnum);
5875 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5876 mono_mb_emit_byte (mb, CEE_STIND_REF);
5877 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5879 mono_mb_patch_branch (mb, pos);
5882 mono_mb_emit_ldloc (mb, conv_arg);
5883 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5884 mono_mb_emit_stloc (mb, 0);
5886 /* Allocate and set dest */
5887 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5888 mono_mb_emit_byte (mb, CEE_CONV_I);
5889 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5890 mono_mb_emit_stloc (mb, 1);
5892 /* Update argument pointer */
5893 mono_mb_emit_ldarg (mb, argnum);
5894 mono_mb_emit_ldloc (mb, 1);
5895 mono_mb_emit_byte (mb, CEE_STIND_I);
5897 /* emit valuetype conversion code */
5898 emit_struct_conv (mb, klass, FALSE);
5900 mono_mb_patch_branch (mb, pos2);
5901 } else if (klass == mono_defaults.stringbuilder_class) {
5902 // FIXME: What to do here ?
5904 /* byval [Out] marshalling */
5906 /* FIXME: Handle null */
5909 mono_mb_emit_ldloc (mb, conv_arg);
5910 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5911 mono_mb_emit_stloc (mb, 0);
5914 mono_mb_emit_ldarg (mb, argnum);
5915 mono_mb_emit_stloc (mb, 1);
5917 /* emit valuetype conversion code */
5918 emit_struct_conv (mb, klass, FALSE);
5922 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5923 if (klass->delegate) {
5924 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5925 mono_mb_emit_stloc (mb, 3);
5929 /* The class can not have an automatic layout */
5930 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5931 mono_mb_emit_auto_layout_exception (mb, klass);
5935 mono_mb_emit_stloc (mb, 0);
5936 /* Check for null */
5937 mono_mb_emit_ldloc (mb, 0);
5938 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5939 mono_mb_emit_byte (mb, CEE_LDNULL);
5940 mono_mb_emit_stloc (mb, 3);
5941 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5943 mono_mb_patch_branch (mb, pos);
5946 mono_mb_emit_ldloc (mb, 0);
5947 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5948 mono_mb_emit_stloc (mb, 0);
5950 /* Allocate and set dest */
5951 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5952 mono_mb_emit_byte (mb, CEE_CONV_I);
5953 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5954 mono_mb_emit_byte (mb, CEE_DUP);
5955 mono_mb_emit_stloc (mb, 1);
5956 mono_mb_emit_stloc (mb, 3);
5958 emit_struct_conv (mb, klass, FALSE);
5960 mono_mb_patch_branch (mb, pos2);
5964 g_assert_not_reached ();
5975 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5976 MonoMarshalSpec *spec,
5977 int conv_arg, MonoType **conv_arg_type,
5978 MarshalAction action)
5980 MonoMethodBuilder *mb = m->mb;
5981 static MonoMethod *get_object_for_native_variant = NULL;
5982 static MonoMethod *get_native_variant_for_object = NULL;
5984 if (!get_object_for_native_variant)
5985 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5986 g_assert (get_object_for_native_variant);
5988 if (!get_native_variant_for_object)
5989 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5990 g_assert (get_native_variant_for_object);
5993 case MARSHAL_ACTION_CONV_IN: {
5994 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5997 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5999 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6001 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6004 mono_mb_emit_ldarg (mb, argnum);
6006 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6007 mono_mb_emit_ldloc_addr (mb, conv_arg);
6008 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6012 case MARSHAL_ACTION_CONV_OUT: {
6013 static MonoMethod *variant_clear = NULL;
6016 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6017 g_assert (variant_clear);
6020 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6021 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_ldloc_addr (mb, conv_arg);
6023 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6024 mono_mb_emit_byte (mb, CEE_STIND_REF);
6027 mono_mb_emit_ldloc_addr (mb, conv_arg);
6028 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6032 case MARSHAL_ACTION_PUSH:
6034 mono_mb_emit_ldloc_addr (mb, conv_arg);
6036 mono_mb_emit_ldloc (mb, conv_arg);
6039 case MARSHAL_ACTION_CONV_RESULT: {
6040 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6041 mono_mb_emit_exception_marshal_directive (mb, msg);
6045 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6046 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6049 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6051 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6053 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6057 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_ldarg_addr (mb, argnum);
6060 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6061 mono_mb_emit_stloc (mb, conv_arg);
6065 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6066 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6067 mono_mb_emit_ldloc (mb, conv_arg);
6068 mono_mb_emit_ldarg (mb, argnum);
6069 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6074 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6075 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6076 mono_mb_emit_exception_marshal_directive (mb, msg);
6081 g_assert_not_reached ();
6087 #endif /* DISABLE_COM */
6088 #endif /* DISABLE_JIT */
6091 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6093 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6094 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6096 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6098 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6110 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6111 MonoMarshalSpec *spec,
6112 int conv_arg, MonoType **conv_arg_type,
6113 MarshalAction action)
6117 case MARSHAL_ACTION_CONV_IN:
6118 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6120 case MARSHAL_ACTION_MANAGED_CONV_IN:
6121 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6125 MonoMethodBuilder *mb = m->mb;
6126 MonoClass *klass = mono_class_from_mono_type (t);
6127 gboolean need_convert, need_free;
6128 MonoMarshalNative encoding;
6130 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6133 case MARSHAL_ACTION_CONV_IN:
6134 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6135 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6137 if (klass->element_class->blittable) {
6138 mono_mb_emit_ldarg (mb, argnum);
6140 mono_mb_emit_byte (mb, CEE_LDIND_I);
6141 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6142 mono_mb_emit_stloc (mb, conv_arg);
6145 guint32 label1, label2, label3;
6146 int index_var, src_var, dest_ptr, esize;
6147 MonoMarshalConv conv;
6148 gboolean is_string = FALSE;
6150 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6152 eklass = klass->element_class;
6154 if (eklass == mono_defaults.string_class) {
6156 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6158 else if (eklass == mono_defaults.stringbuilder_class) {
6160 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6163 conv = (MonoMarshalConv)-1;
6165 if (is_string && conv == -1) {
6166 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6167 mono_mb_emit_exception_marshal_directive (mb, msg);
6171 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6172 mono_mb_emit_ldarg (mb, argnum);
6174 mono_mb_emit_byte (mb, CEE_LDIND_I);
6175 mono_mb_emit_stloc (mb, src_var);
6178 mono_mb_emit_ldloc (mb, src_var);
6179 mono_mb_emit_stloc (mb, conv_arg);
6180 mono_mb_emit_ldloc (mb, src_var);
6181 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6184 esize = sizeof (gpointer);
6185 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6186 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6188 esize = mono_class_native_size (eklass, NULL);
6190 /* allocate space for the native struct and store the address */
6191 mono_mb_emit_icon (mb, esize);
6192 mono_mb_emit_ldloc (mb, src_var);
6193 mono_mb_emit_byte (mb, CEE_LDLEN);
6195 if (eklass == mono_defaults.string_class) {
6196 /* Make the array bigger for the terminating null */
6197 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6198 mono_mb_emit_byte (mb, CEE_ADD);
6200 mono_mb_emit_byte (mb, CEE_MUL);
6201 mono_mb_emit_byte (mb, CEE_PREFIX1);
6202 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6203 mono_mb_emit_stloc (mb, conv_arg);
6205 mono_mb_emit_ldloc (mb, conv_arg);
6206 mono_mb_emit_stloc (mb, dest_ptr);
6208 /* Emit marshalling loop */
6209 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6210 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6211 mono_mb_emit_stloc (mb, index_var);
6212 label2 = mono_mb_get_label (mb);
6213 mono_mb_emit_ldloc (mb, index_var);
6214 mono_mb_emit_ldloc (mb, src_var);
6215 mono_mb_emit_byte (mb, CEE_LDLEN);
6216 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6218 /* Emit marshalling code */
6221 mono_mb_emit_ldloc (mb, dest_ptr);
6222 mono_mb_emit_ldloc (mb, src_var);
6223 mono_mb_emit_ldloc (mb, index_var);
6224 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6225 mono_mb_emit_icall (mb, conv_to_icall (conv));
6226 mono_mb_emit_byte (mb, CEE_STIND_I);
6228 /* set the src_ptr */
6229 mono_mb_emit_ldloc (mb, src_var);
6230 mono_mb_emit_ldloc (mb, index_var);
6231 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6232 mono_mb_emit_stloc (mb, 0);
6235 mono_mb_emit_ldloc (mb, dest_ptr);
6236 mono_mb_emit_stloc (mb, 1);
6238 /* emit valuetype conversion code */
6239 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6242 mono_mb_emit_add_to_local (mb, index_var, 1);
6243 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6245 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6247 mono_mb_patch_branch (mb, label3);
6249 if (eklass == mono_defaults.string_class) {
6250 /* Null terminate */
6251 mono_mb_emit_ldloc (mb, dest_ptr);
6252 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6253 mono_mb_emit_byte (mb, CEE_STIND_REF);
6256 mono_mb_patch_branch (mb, label1);
6261 case MARSHAL_ACTION_CONV_OUT:
6262 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6263 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);
6264 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6267 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6268 int param_num = spec->data.array_data.param_num;
6269 MonoType *param_type;
6271 param_type = m->sig->params [param_num];
6273 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6274 char *msg = g_strdup ("Not implemented.");
6275 mono_mb_emit_exception_marshal_directive (mb, msg);
6280 mono_mb_emit_ldarg (mb, argnum);
6282 /* Create the managed array */
6283 mono_mb_emit_ldarg (mb, param_num);
6284 if (m->sig->params [param_num]->byref)
6285 // FIXME: Support other types
6286 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6287 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6288 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6289 /* Store into argument */
6290 mono_mb_emit_byte (mb, CEE_STIND_I);
6294 if (need_convert || need_free) {
6295 /* FIXME: Optimize blittable case */
6297 guint32 label1, label2, label3;
6298 int index_var, src_ptr, loc, esize;
6300 eklass = klass->element_class;
6301 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6302 esize = sizeof (gpointer);
6303 else if (eklass == mono_defaults.char_class)
6304 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6306 esize = mono_class_native_size (eklass, NULL);
6307 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6308 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6311 mono_mb_emit_ldarg (mb, argnum);
6313 mono_mb_emit_byte (mb, CEE_LDIND_I);
6314 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6316 mono_mb_emit_ldloc (mb, conv_arg);
6317 mono_mb_emit_stloc (mb, src_ptr);
6319 /* Emit marshalling loop */
6320 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6321 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6322 mono_mb_emit_stloc (mb, index_var);
6323 label2 = mono_mb_get_label (mb);
6324 mono_mb_emit_ldloc (mb, index_var);
6325 mono_mb_emit_ldarg (mb, argnum);
6327 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6328 mono_mb_emit_byte (mb, CEE_LDLEN);
6329 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6331 /* Emit marshalling code */
6333 if (eklass == mono_defaults.stringbuilder_class) {
6334 gboolean need_free2;
6335 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6337 g_assert (conv != -1);
6340 mono_mb_emit_ldarg (mb, argnum);
6342 mono_mb_emit_byte (mb, CEE_LDIND_I);
6343 mono_mb_emit_ldloc (mb, index_var);
6344 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6347 mono_mb_emit_ldloc (mb, src_ptr);
6348 mono_mb_emit_byte (mb, CEE_LDIND_I);
6350 mono_mb_emit_icall (mb, conv_to_icall (conv));
6354 mono_mb_emit_ldloc (mb, src_ptr);
6355 mono_mb_emit_byte (mb, CEE_LDIND_I);
6357 mono_mb_emit_icall (mb, mono_marshal_free);
6360 else if (eklass == mono_defaults.string_class) {
6363 mono_mb_emit_ldloc (mb, src_ptr);
6364 mono_mb_emit_byte (mb, CEE_LDIND_I);
6366 mono_mb_emit_icall (mb, mono_marshal_free);
6371 /* set the src_ptr */
6372 mono_mb_emit_ldloc (mb, src_ptr);
6373 mono_mb_emit_stloc (mb, 0);
6376 mono_mb_emit_ldarg (mb, argnum);
6378 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6379 mono_mb_emit_ldloc (mb, index_var);
6380 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6381 mono_mb_emit_stloc (mb, 1);
6383 /* emit valuetype conversion code */
6384 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6388 mono_mb_emit_ldloc (mb, src_ptr);
6389 mono_mb_emit_stloc (mb, loc);
6390 mono_mb_emit_ldloc (mb, loc);
6392 emit_struct_free (mb, eklass, loc);
6396 mono_mb_emit_add_to_local (mb, index_var, 1);
6397 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6399 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6401 mono_mb_patch_branch (mb, label1);
6402 mono_mb_patch_branch (mb, label3);
6405 if (klass->element_class->blittable) {
6406 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6408 mono_mb_emit_ldarg (mb, argnum);
6410 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6411 mono_mb_emit_ldloc (mb, conv_arg);
6412 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6417 case MARSHAL_ACTION_PUSH:
6419 mono_mb_emit_ldloc_addr (mb, conv_arg);
6421 mono_mb_emit_ldloc (mb, conv_arg);
6424 case MARSHAL_ACTION_CONV_RESULT:
6425 /* fixme: we need conversions here */
6426 mono_mb_emit_stloc (mb, 3);
6429 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6431 guint32 label1, label2, label3;
6432 int index_var, src_ptr, esize, param_num, num_elem;
6433 MonoMarshalConv conv;
6434 gboolean is_string = FALSE;
6436 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6437 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6440 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6441 mono_mb_emit_exception_marshal_directive (mb, msg);
6445 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6446 mono_mb_emit_exception_marshal_directive (mb, msg);
6449 if (spec->native != MONO_NATIVE_LPARRAY) {
6450 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6451 mono_mb_emit_exception_marshal_directive (mb, msg);
6455 /* FIXME: t is from the method which is wrapped, not the delegate type */
6456 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6458 param_num = spec->data.array_data.param_num;
6459 num_elem = spec->data.array_data.num_elem;
6460 if (spec->data.array_data.elem_mult == 0)
6461 /* param_num is not specified */
6464 if (param_num == -1) {
6465 if (num_elem <= 0) {
6466 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6467 mono_mb_emit_exception_marshal_directive (mb, msg);
6472 /* FIXME: Optimize blittable case */
6474 eklass = klass->element_class;
6475 if (eklass == mono_defaults.string_class) {
6477 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6479 else if (eklass == mono_defaults.stringbuilder_class) {
6481 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6484 conv = (MonoMarshalConv)-1;
6486 mono_marshal_load_type_info (eklass);
6489 esize = sizeof (gpointer);
6491 esize = mono_class_native_size (eklass, NULL);
6492 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6494 mono_mb_emit_byte (mb, CEE_LDNULL);
6495 mono_mb_emit_stloc (mb, conv_arg);
6497 /* Check param index */
6498 if (param_num != -1) {
6499 if (param_num >= m->sig->param_count) {
6500 char *msg = g_strdup ("Array size control parameter index is out of range.");
6501 mono_mb_emit_exception_marshal_directive (mb, msg);
6504 switch (m->sig->params [param_num]->type) {
6517 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6518 mono_mb_emit_exception_marshal_directive (mb, msg);
6525 mono_mb_emit_ldarg (mb, argnum);
6526 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6528 mono_mb_emit_ldarg (mb, argnum);
6529 mono_mb_emit_stloc (mb, src_ptr);
6531 /* Create managed array */
6533 * The LPArray marshalling spec says that sometimes param_num starts
6534 * from 1, sometimes it starts from 0. But MS seems to allways start
6538 if (param_num == -1) {
6539 mono_mb_emit_icon (mb, num_elem);
6541 mono_mb_emit_ldarg (mb, param_num);
6543 mono_mb_emit_icon (mb, num_elem);
6544 mono_mb_emit_byte (mb, CEE_ADD);
6546 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6549 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6550 mono_mb_emit_stloc (mb, conv_arg);
6552 if (eklass->blittable) {
6553 mono_mb_emit_ldloc (mb, conv_arg);
6554 mono_mb_emit_byte (mb, CEE_CONV_I);
6555 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6556 mono_mb_emit_byte (mb, CEE_ADD);
6557 mono_mb_emit_ldarg (mb, argnum);
6558 mono_mb_emit_ldloc (mb, conv_arg);
6559 mono_mb_emit_byte (mb, CEE_LDLEN);
6560 mono_mb_emit_icon (mb, esize);
6561 mono_mb_emit_byte (mb, CEE_MUL);
6562 mono_mb_emit_byte (mb, CEE_PREFIX1);
6563 mono_mb_emit_byte (mb, CEE_CPBLK);
6567 /* Emit marshalling loop */
6568 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6569 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6570 mono_mb_emit_stloc (mb, index_var);
6571 label2 = mono_mb_get_label (mb);
6572 mono_mb_emit_ldloc (mb, index_var);
6573 mono_mb_emit_ldloc (mb, conv_arg);
6574 mono_mb_emit_byte (mb, CEE_LDLEN);
6575 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6577 /* Emit marshalling code */
6579 g_assert (conv != -1);
6581 mono_mb_emit_ldloc (mb, conv_arg);
6582 mono_mb_emit_ldloc (mb, index_var);
6584 mono_mb_emit_ldloc (mb, src_ptr);
6585 mono_mb_emit_byte (mb, CEE_LDIND_I);
6587 mono_mb_emit_icall (mb, conv_to_icall (conv));
6588 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6591 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6592 mono_mb_emit_exception_marshal_directive (mb, msg);
6596 mono_mb_emit_add_to_local (mb, index_var, 1);
6597 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6599 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6601 mono_mb_patch_branch (mb, label1);
6602 mono_mb_patch_branch (mb, label3);
6606 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6608 guint32 label1, label2, label3;
6609 int index_var, dest_ptr, esize, param_num, num_elem;
6610 MonoMarshalConv conv;
6611 gboolean is_string = FALSE;
6614 /* Already handled in CONV_IN */
6617 /* These are already checked in CONV_IN */
6618 g_assert (!t->byref);
6619 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6620 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6622 param_num = spec->data.array_data.param_num;
6623 num_elem = spec->data.array_data.num_elem;
6625 if (spec->data.array_data.elem_mult == 0)
6626 /* param_num is not specified */
6629 if (param_num == -1) {
6630 if (num_elem <= 0) {
6631 g_assert_not_reached ();
6635 /* FIXME: Optimize blittable case */
6637 eklass = klass->element_class;
6638 if (eklass == mono_defaults.string_class) {
6640 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6642 else if (eklass == mono_defaults.stringbuilder_class) {
6644 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6647 conv = (MonoMarshalConv)-1;
6649 mono_marshal_load_type_info (eklass);
6652 esize = sizeof (gpointer);
6654 esize = mono_class_native_size (eklass, NULL);
6656 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6659 mono_mb_emit_ldloc (mb, conv_arg);
6660 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6662 mono_mb_emit_ldarg (mb, argnum);
6663 mono_mb_emit_stloc (mb, dest_ptr);
6665 if (eklass->blittable) {
6667 mono_mb_emit_ldarg (mb, argnum);
6669 mono_mb_emit_ldloc (mb, conv_arg);
6670 mono_mb_emit_byte (mb, CEE_CONV_I);
6671 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6672 mono_mb_emit_byte (mb, CEE_ADD);
6674 mono_mb_emit_ldloc (mb, conv_arg);
6675 mono_mb_emit_byte (mb, CEE_LDLEN);
6676 mono_mb_emit_icon (mb, esize);
6677 mono_mb_emit_byte (mb, CEE_MUL);
6678 mono_mb_emit_byte (mb, CEE_PREFIX1);
6679 mono_mb_emit_byte (mb, CEE_CPBLK);
6683 /* Emit marshalling loop */
6684 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6685 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6686 mono_mb_emit_stloc (mb, index_var);
6687 label2 = mono_mb_get_label (mb);
6688 mono_mb_emit_ldloc (mb, index_var);
6689 mono_mb_emit_ldloc (mb, conv_arg);
6690 mono_mb_emit_byte (mb, CEE_LDLEN);
6691 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6693 /* Emit marshalling code */
6695 g_assert (conv != -1);
6698 mono_mb_emit_ldloc (mb, dest_ptr);
6701 mono_mb_emit_ldloc (mb, conv_arg);
6702 mono_mb_emit_ldloc (mb, index_var);
6704 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6706 mono_mb_emit_icall (mb, conv_to_icall (conv));
6707 mono_mb_emit_byte (mb, CEE_STIND_I);
6710 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6711 mono_mb_emit_exception_marshal_directive (mb, msg);
6715 mono_mb_emit_add_to_local (mb, index_var, 1);
6716 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6718 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6720 mono_mb_patch_branch (mb, label1);
6721 mono_mb_patch_branch (mb, label3);
6725 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6727 guint32 label1, label2, label3;
6728 int index_var, src, dest, esize;
6729 MonoMarshalConv conv = (MonoMarshalConv)-1;
6730 gboolean is_string = FALSE;
6732 g_assert (!t->byref);
6734 eklass = klass->element_class;
6736 mono_marshal_load_type_info (eklass);
6738 if (eklass == mono_defaults.string_class) {
6740 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6743 g_assert_not_reached ();
6747 esize = sizeof (gpointer);
6748 else if (eklass == mono_defaults.char_class)
6749 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6751 esize = mono_class_native_size (eklass, NULL);
6753 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6754 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6756 mono_mb_emit_stloc (mb, src);
6757 mono_mb_emit_ldloc (mb, src);
6758 mono_mb_emit_stloc (mb, 3);
6760 /* Check for null */
6761 mono_mb_emit_ldloc (mb, src);
6762 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6764 /* Allocate native array */
6765 mono_mb_emit_icon (mb, esize);
6766 mono_mb_emit_ldloc (mb, src);
6767 mono_mb_emit_byte (mb, CEE_LDLEN);
6769 if (eklass == mono_defaults.string_class) {
6770 /* Make the array bigger for the terminating null */
6771 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6772 mono_mb_emit_byte (mb, CEE_ADD);
6774 mono_mb_emit_byte (mb, CEE_MUL);
6775 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6776 mono_mb_emit_stloc (mb, dest);
6777 mono_mb_emit_ldloc (mb, dest);
6778 mono_mb_emit_stloc (mb, 3);
6780 /* Emit marshalling loop */
6781 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6782 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6783 mono_mb_emit_stloc (mb, index_var);
6784 label2 = mono_mb_get_label (mb);
6785 mono_mb_emit_ldloc (mb, index_var);
6786 mono_mb_emit_ldloc (mb, src);
6787 mono_mb_emit_byte (mb, CEE_LDLEN);
6788 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6790 /* Emit marshalling code */
6792 g_assert (conv != -1);
6795 mono_mb_emit_ldloc (mb, dest);
6798 mono_mb_emit_ldloc (mb, src);
6799 mono_mb_emit_ldloc (mb, index_var);
6801 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6803 mono_mb_emit_icall (mb, conv_to_icall (conv));
6804 mono_mb_emit_byte (mb, CEE_STIND_I);
6807 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6808 mono_mb_emit_exception_marshal_directive (mb, msg);
6812 mono_mb_emit_add_to_local (mb, index_var, 1);
6813 mono_mb_emit_add_to_local (mb, dest, esize);
6815 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6817 mono_mb_patch_branch (mb, label3);
6818 mono_mb_patch_branch (mb, label1);
6822 g_assert_not_reached ();
6829 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6832 return &mono_defaults.int32_class->byval_arg;
6834 switch (spec->native) {
6835 case MONO_NATIVE_I1:
6836 case MONO_NATIVE_U1:
6837 return &mono_defaults.byte_class->byval_arg;
6838 case MONO_NATIVE_VARIANTBOOL:
6839 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6840 return &mono_defaults.int16_class->byval_arg;
6841 case MONO_NATIVE_BOOLEAN:
6842 return &mono_defaults.int32_class->byval_arg;
6844 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6845 return &mono_defaults.int32_class->byval_arg;
6851 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6853 MonoClass* conv_arg_class = mono_defaults.int32_class;
6855 switch (spec->native) {
6856 case MONO_NATIVE_I1:
6857 case MONO_NATIVE_U1:
6858 conv_arg_class = mono_defaults.byte_class;
6859 if (ldop) *ldop = CEE_LDIND_I1;
6861 case MONO_NATIVE_VARIANTBOOL:
6862 conv_arg_class = mono_defaults.int16_class;
6863 if (ldop) *ldop = CEE_LDIND_I2;
6865 case MONO_NATIVE_BOOLEAN:
6868 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6871 return conv_arg_class;
6875 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6876 MonoMarshalSpec *spec,
6877 int conv_arg, MonoType **conv_arg_type,
6878 MarshalAction action)
6882 case MARSHAL_ACTION_CONV_IN:
6884 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6886 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6889 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6890 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6892 *conv_arg_type = &conv_arg_class->this_arg;
6894 *conv_arg_type = &conv_arg_class->byval_arg;
6900 MonoMethodBuilder *mb = m->mb;
6903 case MARSHAL_ACTION_CONV_IN: {
6904 MonoType *local_type;
6906 guint8 ldc_op = CEE_LDC_I4_1;
6908 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6910 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6912 *conv_arg_type = local_type;
6913 conv_arg = mono_mb_add_local (mb, local_type);
6915 mono_mb_emit_ldarg (mb, argnum);
6917 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6918 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6919 mono_mb_emit_byte (mb, ldc_op);
6920 mono_mb_emit_stloc (mb, conv_arg);
6921 mono_mb_patch_branch (mb, label_false);
6926 case MARSHAL_ACTION_CONV_OUT:
6928 int label_false, label_end;
6932 mono_mb_emit_ldarg (mb, argnum);
6933 mono_mb_emit_ldloc (mb, conv_arg);
6935 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6936 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6938 label_end = mono_mb_emit_branch (mb, CEE_BR);
6939 mono_mb_patch_branch (mb, label_false);
6940 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6941 mono_mb_patch_branch (mb, label_end);
6943 mono_mb_emit_byte (mb, CEE_STIND_I1);
6947 case MARSHAL_ACTION_PUSH:
6949 mono_mb_emit_ldloc_addr (mb, conv_arg);
6951 mono_mb_emit_ldloc (mb, conv_arg);
6953 mono_mb_emit_ldarg (mb, argnum);
6956 case MARSHAL_ACTION_CONV_RESULT:
6957 /* maybe we need to make sure that it fits within 8 bits */
6958 mono_mb_emit_stloc (mb, 3);
6961 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6962 MonoClass* conv_arg_class = mono_defaults.int32_class;
6963 guint8 ldop = CEE_LDIND_I4;
6964 int label_null, label_false;
6966 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6967 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6970 *conv_arg_type = &conv_arg_class->this_arg;
6972 *conv_arg_type = &conv_arg_class->byval_arg;
6975 mono_mb_emit_ldarg (mb, argnum);
6979 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6980 mono_mb_emit_ldarg (mb, argnum);
6981 mono_mb_emit_byte (mb, ldop);
6985 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6986 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6987 mono_mb_emit_stloc (mb, conv_arg);
6988 mono_mb_patch_branch (mb, label_false);
6991 mono_mb_patch_branch (mb, label_null);
6995 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6996 guint8 stop = CEE_STIND_I4;
6997 guint8 ldc_op = CEE_LDC_I4_1;
6998 int label_null,label_false, label_end;;
7003 switch (spec->native) {
7004 case MONO_NATIVE_I1:
7005 case MONO_NATIVE_U1:
7006 stop = CEE_STIND_I1;
7008 case MONO_NATIVE_VARIANTBOOL:
7009 stop = CEE_STIND_I2;
7010 ldc_op = CEE_LDC_I4_M1;
7018 mono_mb_emit_ldarg (mb, argnum);
7019 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7021 mono_mb_emit_ldarg (mb, argnum);
7022 mono_mb_emit_ldloc (mb, conv_arg);
7024 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7025 mono_mb_emit_byte (mb, ldc_op);
7026 label_end = mono_mb_emit_branch (mb, CEE_BR);
7028 mono_mb_patch_branch (mb, label_false);
7029 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7030 mono_mb_patch_branch (mb, label_end);
7032 mono_mb_emit_byte (mb, stop);
7033 mono_mb_patch_branch (mb, label_null);
7038 g_assert_not_reached ();
7045 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7046 MonoMarshalSpec *spec, int conv_arg,
7047 MonoType **conv_arg_type, MarshalAction action)
7050 MonoMethodBuilder *mb = m->mb;
7053 case MARSHAL_ACTION_CONV_IN:
7054 /* MS seems to allow this in some cases, ie. bxc #158 */
7056 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7057 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7058 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7063 case MARSHAL_ACTION_PUSH:
7064 mono_mb_emit_ldarg (mb, argnum);
7067 case MARSHAL_ACTION_CONV_RESULT:
7068 /* no conversions necessary */
7069 mono_mb_emit_stloc (mb, 3);
7080 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7081 MonoMarshalSpec *spec, int conv_arg,
7082 MonoType **conv_arg_type, MarshalAction action)
7085 MonoMethodBuilder *mb = m->mb;
7088 case MARSHAL_ACTION_PUSH:
7089 /* fixme: dont know how to marshal that. We cant simply
7090 * convert it to a one byte UTF8 character, because an
7091 * unicode character may need more that one byte in UTF8 */
7092 mono_mb_emit_ldarg (mb, argnum);
7095 case MARSHAL_ACTION_CONV_RESULT:
7096 /* fixme: we need conversions here */
7097 mono_mb_emit_stloc (mb, 3);
7108 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7109 MonoMarshalSpec *spec, int conv_arg,
7110 MonoType **conv_arg_type, MarshalAction action)
7113 MonoMethodBuilder *mb = m->mb;
7116 case MARSHAL_ACTION_PUSH:
7117 mono_mb_emit_ldarg (mb, argnum);
7120 case MARSHAL_ACTION_CONV_RESULT:
7121 /* no conversions necessary */
7122 mono_mb_emit_stloc (mb, 3);
7133 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7134 MonoMarshalSpec *spec, int conv_arg,
7135 MonoType **conv_arg_type, MarshalAction action)
7137 /* Ensure that we have marshalling info for this param */
7138 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7140 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7141 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7143 if (spec && spec->native == MONO_NATIVE_ASANY)
7144 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7147 case MONO_TYPE_VALUETYPE:
7148 if (t->data.klass == mono_defaults.handleref_class)
7149 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7151 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7152 case MONO_TYPE_STRING:
7153 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7154 case MONO_TYPE_CLASS:
7155 case MONO_TYPE_OBJECT:
7157 if (spec && spec->native == MONO_NATIVE_STRUCT)
7158 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7160 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7161 spec->native == MONO_NATIVE_IDISPATCH ||
7162 spec->native == MONO_NATIVE_INTERFACE))
7163 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7164 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7165 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7166 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7167 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7170 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7171 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7172 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7174 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7175 case MONO_TYPE_ARRAY:
7176 case MONO_TYPE_SZARRAY:
7177 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7178 case MONO_TYPE_BOOLEAN:
7179 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7181 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7182 case MONO_TYPE_CHAR:
7183 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7196 case MONO_TYPE_FNPTR:
7197 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 case MONO_TYPE_GENERICINST:
7199 if (mono_type_generic_inst_is_valuetype (t))
7200 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7202 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7210 * mono_marshal_emit_native_wrapper:
7211 * @image: the image to use for looking up custom marshallers
7212 * @sig: The signature of the native function
7213 * @piinfo: Marshalling information
7214 * @mspecs: Marshalling information
7215 * @aot: whenever the created method will be compiled by the AOT compiler
7216 * @method: if non-NULL, the pinvoke method to call
7217 * @check_exceptions: Whenever to check for pending exceptions after the native call
7218 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7220 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7223 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)
7225 EmitMarshalContext m;
7226 MonoMethodSignature *csig;
7228 MonoExceptionClause *clause;
7229 int i, argnum, *tmp_locals;
7230 int type, param_shift = 0;
7231 static MonoMethodSignature *get_last_error_sig = NULL;
7232 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7235 memset (&m, 0, sizeof (m));
7240 /* we copy the signature, so that we can set pinvoke to 0 */
7242 /* The function address is passed as the first argument */
7243 g_assert (!sig->hasthis);
7246 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7254 /* we allocate local for use with emit_struct_conv() */
7255 /* allocate local 0 (pointer) src_ptr */
7256 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7257 /* allocate local 1 (pointer) dst_ptr */
7258 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7259 /* allocate local 2 (boolean) delete_old */
7260 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7262 /* delete_old = FALSE */
7263 mono_mb_emit_icon (mb, 0);
7264 mono_mb_emit_stloc (mb, 2);
7266 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7267 /* allocate local 3 to store the return value */
7268 mono_mb_add_local (mb, sig->ret);
7271 if (mono_threads_is_coop_enabled ()) {
7272 /* local 4, dummy local used to get a stack address for suspend funcs */
7273 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7274 /* local 5, the local to be used when calling the suspend funcs */
7275 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7276 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7278 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7279 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7282 if (MONO_TYPE_ISSTRUCT (sig->ret))
7283 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7285 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7286 /* Return type custom marshaling */
7288 * Since we can't determine the return type of the unmanaged function,
7289 * we assume it returns a pointer, and pass that pointer to
7290 * MarshalNativeToManaged.
7292 csig->ret = &mono_defaults.int_class->byval_arg;
7295 /* we first do all conversions */
7296 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7297 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7299 for (i = 0; i < sig->param_count; i ++) {
7300 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7303 // In coop mode need to register blocking state during native call
7304 if (mono_threads_is_coop_enabled ()) {
7305 // Perform an extra, early lookup of the function address, so any exceptions
7306 // potentially resulting from the lookup occur before entering blocking mode.
7307 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7308 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7309 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7310 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7313 clause->try_offset = mono_mb_get_label (mb);
7315 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7316 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7317 mono_mb_emit_stloc (mb, coop_gc_var);
7320 /* push all arguments */
7323 mono_mb_emit_byte (mb, CEE_LDARG_0);
7325 for (i = 0; i < sig->param_count; i++) {
7326 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7329 /* call the native method */
7331 mono_mb_emit_byte (mb, CEE_LDARG_0);
7332 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7333 mono_mb_emit_byte (mb, CEE_LDIND_I);
7334 mono_mb_emit_calli (mb, csig);
7335 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7337 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7339 g_assert_not_reached ();
7344 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7345 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7346 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7347 mono_mb_emit_calli (mb, csig);
7349 mono_mb_emit_native_call (mb, csig, func);
7353 /* Set LastError if needed */
7354 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7355 if (!get_last_error_sig) {
7356 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7357 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7358 get_last_error_sig->pinvoke = 1;
7363 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7364 * clobber its value.
7366 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7367 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7369 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7373 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7374 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7375 mono_class_init (klass);
7376 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7377 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7379 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7380 mono_mb_emit_stloc (mb, m.vtaddr_var);
7384 /* Unblock before converting the result, since that can involve calls into the runtime */
7385 if (mono_threads_is_coop_enabled ()) {
7386 mono_mb_emit_ldloc (mb, coop_gc_var);
7387 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7388 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7389 mono_mb_emit_icon (mb, 1);
7390 mono_mb_emit_stloc (mb, coop_unblocked_var);
7393 /* convert the result */
7394 if (!sig->ret->byref) {
7395 MonoMarshalSpec *spec = mspecs [0];
7396 type = sig->ret->type;
7398 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7399 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7403 case MONO_TYPE_VOID:
7405 case MONO_TYPE_VALUETYPE:
7406 klass = sig->ret->data.klass;
7407 if (klass->enumtype) {
7408 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7411 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7425 case MONO_TYPE_FNPTR:
7426 case MONO_TYPE_STRING:
7427 case MONO_TYPE_CLASS:
7428 case MONO_TYPE_OBJECT:
7429 case MONO_TYPE_BOOLEAN:
7430 case MONO_TYPE_ARRAY:
7431 case MONO_TYPE_SZARRAY:
7432 case MONO_TYPE_CHAR:
7434 case MONO_TYPE_GENERICINST:
7435 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7437 case MONO_TYPE_TYPEDBYREF:
7439 g_warning ("return type 0x%02x unknown", sig->ret->type);
7440 g_assert_not_reached ();
7444 mono_mb_emit_stloc (mb, 3);
7447 if (mono_threads_is_coop_enabled ()) {
7450 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7452 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7453 clause->handler_offset = mono_mb_get_label (mb);
7455 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7456 mono_mb_emit_icon (mb, 1);
7457 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7459 mono_mb_emit_ldloc (mb, coop_gc_var);
7460 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7461 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7463 mono_mb_patch_branch (mb, pos);
7465 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7467 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7469 mono_mb_patch_branch (mb, leave_pos);
7473 * Need to call this after converting the result since MONO_VTADDR needs
7474 * to be adjacent to the call instruction.
7476 if (check_exceptions)
7477 emit_thread_interrupt_checkpoint (mb);
7479 /* we need to convert byref arguments back and free string arrays */
7480 for (i = 0; i < sig->param_count; i++) {
7481 MonoType *t = sig->params [i];
7482 MonoMarshalSpec *spec = mspecs [i + 1];
7484 argnum = i + param_shift;
7486 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7487 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7492 case MONO_TYPE_STRING:
7493 case MONO_TYPE_VALUETYPE:
7494 case MONO_TYPE_CLASS:
7495 case MONO_TYPE_OBJECT:
7496 case MONO_TYPE_SZARRAY:
7497 case MONO_TYPE_BOOLEAN:
7498 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7505 if (!MONO_TYPE_IS_VOID(sig->ret))
7506 mono_mb_emit_ldloc (mb, 3);
7508 mono_mb_emit_byte (mb, CEE_RET);
7510 if (mono_threads_is_coop_enabled ()) {
7511 mono_mb_set_clauses (mb, 1, clause);
7514 #endif /* DISABLE_JIT */
7517 * mono_marshal_get_native_wrapper:
7518 * @method: The MonoMethod to wrap.
7519 * @check_exceptions: Whenever to check for pending exceptions
7521 * generates IL code for the pinvoke wrapper (the generated method
7522 * calls the unmanaged code in piinfo->addr)
7523 * The wrapper info for the wrapper is a WrapperInfo structure.
7526 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7528 MonoMethodSignature *sig, *csig;
7529 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7530 MonoMethodBuilder *mb;
7531 MonoMarshalSpec **mspecs;
7534 gboolean pinvoke = FALSE;
7537 const char *exc_class = "MissingMethodException";
7538 const char *exc_arg = NULL;
7541 g_assert (method != NULL);
7542 g_assert (mono_method_signature (method)->pinvoke);
7544 GHashTable **cache_ptr;
7547 if (check_exceptions)
7548 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7550 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7552 if (check_exceptions)
7553 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7555 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7558 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7560 if ((res = mono_marshal_find_in_cache (cache, method)))
7563 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7564 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7568 return mono_cominterop_get_native_wrapper (method);
7570 g_assert_not_reached ();
7574 sig = mono_method_signature (method);
7576 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7577 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7580 if (!piinfo->addr) {
7582 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7583 exc_arg = "Method contains unsupported native code";
7585 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7587 piinfo->addr = mono_lookup_internal_call (method);
7591 /* hack - redirect certain string constructors to CreateString */
7592 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7593 g_assert (!pinvoke);
7594 g_assert (method->string_ctor);
7595 g_assert (sig->hasthis);
7597 /* CreateString returns a value */
7598 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7599 csig->ret = &mono_defaults.string_class->byval_arg;
7603 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7604 if (!strcmp ("CreateString", res->name) &&
7605 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7608 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7609 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7611 /* create a wrapper to preserve .ctor in stack trace */
7612 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7615 mono_mb_emit_byte (mb, CEE_LDARG_0);
7616 for (i = 1; i <= csig->param_count; i++)
7617 mono_mb_emit_ldarg (mb, i);
7618 mono_mb_emit_managed_call (mb, res, NULL);
7619 mono_mb_emit_byte (mb, CEE_RET);
7622 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7623 info->d.string_ctor.method = method;
7625 /* use native_wrapper_cache because internal calls are looked up there */
7626 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7627 csig->param_count + 1, info, NULL);
7634 /* exception will be thrown */
7635 piinfo->addr = NULL;
7636 g_warning ("cannot find CreateString for .ctor");
7639 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7641 mb->method->save_lmf = 1;
7644 * In AOT mode and embedding scenarios, it is possible that the icall is not
7645 * registered in the runtime doing the AOT compilation.
7647 if (!piinfo->addr && !aot) {
7649 mono_mb_emit_exception (mb, exc_class, exc_arg);
7651 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7652 info->d.managed_to_native.method = method;
7654 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7656 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7657 csig->param_count + 16, info, NULL);
7663 /* internal calls: we simply push all arguments and call the method (no conversions) */
7664 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7666 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7668 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7670 /* hack - string constructors returns a value */
7671 if (method->string_ctor)
7672 csig->ret = &mono_defaults.string_class->byval_arg;
7679 * Add a null check since public icalls can be called with 'call' which
7680 * does no such check.
7682 mono_mb_emit_byte (mb, CEE_LDARG_0);
7683 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7684 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7685 mono_mb_patch_branch (mb, pos);
7687 mono_mb_emit_byte (mb, CEE_LDARG_0);
7690 for (i = 0; i < sig->param_count; i++)
7691 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7694 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7695 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7696 mono_mb_emit_calli (mb, csig);
7698 g_assert (piinfo->addr);
7699 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7701 if (check_exceptions)
7702 emit_thread_interrupt_checkpoint (mb);
7703 mono_mb_emit_byte (mb, CEE_RET);
7705 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7706 info->d.managed_to_native.method = method;
7708 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7710 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7719 g_assert (piinfo->addr);
7722 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7723 mono_method_get_marshal_info (method, mspecs);
7725 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7727 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7728 info->d.managed_to_native.method = method;
7730 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7732 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7737 for (i = sig->param_count; i >= 0; i--)
7739 mono_metadata_free_marshal_spec (mspecs [i]);
7743 /* mono_method_print_code (res); */
7749 * mono_marshal_get_native_func_wrapper:
7750 * @image: The image to use for memory allocation and for looking up custom marshallers.
7751 * @sig: The signature of the function
7752 * @func: The native function to wrap
7754 * Returns a wrapper method around native functions, similar to the pinvoke
7758 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7759 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7761 MonoMethodSignature *csig;
7763 SignaturePointerPair key, *new_key;
7764 MonoMethodBuilder *mb;
7773 // Generic types are not safe to place in MonoImage caches.
7774 g_assert (!sig->is_inflated);
7776 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7777 if ((res = mono_marshal_find_in_cache (cache, &key)))
7780 name = g_strdup_printf ("wrapper_native_%p", func);
7781 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7782 mb->method->save_lmf = 1;
7785 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7788 csig = mono_metadata_signature_dup_full (image, sig);
7791 new_key = g_new (SignaturePointerPair,1);
7792 new_key->sig = csig;
7793 new_key->pointer = func;
7795 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7801 mono_marshal_set_wrapper_info (res, NULL);
7807 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7811 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7813 MonoMethodSignature *sig, *csig;
7814 MonoMethodBuilder *mb;
7819 MonoMethodPInvoke mpiinfo;
7820 MonoMethodPInvoke *piinfo = &mpiinfo;
7821 MonoMarshalSpec **mspecs;
7822 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7823 MonoImage *image = invoke->klass->image;
7826 // FIXME: include UnmanagedFunctionPointerAttribute info
7829 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7831 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7833 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7836 memset (&mpiinfo, 0, sizeof (mpiinfo));
7837 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7839 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7840 mono_method_get_marshal_info (invoke, mspecs);
7841 /* Freed below so don't alloc from mempool */
7842 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7845 name = g_strdup_printf ("wrapper_aot_native");
7846 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7847 mb->method->save_lmf = 1;
7850 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7853 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7854 info->d.managed_to_native.method = invoke;
7856 g_assert (!sig->hasthis);
7857 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7859 res = mono_mb_create_and_cache_full (cache, invoke,
7860 mb, csig, csig->param_count + 16,
7864 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7866 mono_metadata_free_marshal_spec (mspecs [i]);
7874 * mono_marshal_emit_managed_wrapper:
7876 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7877 * the delegate which wraps the managed method to be called. For closed delegates,
7878 * it could have fewer parameters than the method it wraps.
7879 * THIS_LOC is the memory location where the target of the delegate is stored.
7882 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7885 MonoMethodSignature *sig, *csig;
7891 /* we first do all conversions */
7892 for (i = 0; i < sig->param_count; i ++) {
7893 MonoType *t = sig->params [i];
7896 case MONO_TYPE_OBJECT:
7897 case MONO_TYPE_CLASS:
7898 case MONO_TYPE_VALUETYPE:
7899 case MONO_TYPE_ARRAY:
7900 case MONO_TYPE_SZARRAY:
7901 case MONO_TYPE_STRING:
7902 case MONO_TYPE_BOOLEAN:
7903 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7907 if (!sig->ret->byref) {
7908 switch (sig->ret->type) {
7909 case MONO_TYPE_STRING:
7910 csig->ret = &mono_defaults.int_class->byval_arg;
7917 MonoMethodSignature *sig, *csig;
7918 MonoExceptionClause *clause;
7921 gboolean closed = FALSE;
7926 /* allocate local 0 (pointer) src_ptr */
7927 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7928 /* allocate local 1 (pointer) dst_ptr */
7929 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7930 /* allocate local 2 (boolean) delete_old */
7931 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7933 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7934 /* Closed delegate */
7935 g_assert (sig->param_count == invoke_sig->param_count + 1);
7937 /* Use a new signature without the first argument */
7938 sig = mono_metadata_signature_dup (sig);
7939 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7940 sig->param_count --;
7943 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7944 /* allocate local 3 to store the return value */
7945 mono_mb_add_local (mb, sig->ret);
7948 if (MONO_TYPE_ISSTRUCT (sig->ret))
7949 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7953 * mono_jit_attach ();
7957 * ret = method (...);
7959 * mono_jit_detach ();
7965 if (mono_threads_is_coop_enabled ()) {
7966 clause = g_new0 (MonoExceptionClause, 1);
7967 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7970 mono_mb_emit_icon (mb, 0);
7971 mono_mb_emit_stloc (mb, 2);
7973 if (mono_threads_is_coop_enabled ()) {
7975 clause->try_offset = mono_mb_get_label (mb);
7979 * Might need to attach the thread to the JIT or change the
7980 * domain for the callback.
7982 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7984 * mono_jit_attach ();
7986 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7987 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7989 /* <interrupt check> */
7990 emit_thread_interrupt_checkpoint (mb);
7992 /* we first do all conversions */
7993 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7994 for (i = 0; i < sig->param_count; i ++) {
7995 MonoType *t = sig->params [i];
7998 case MONO_TYPE_OBJECT:
7999 case MONO_TYPE_CLASS:
8000 case MONO_TYPE_VALUETYPE:
8001 case MONO_TYPE_ARRAY:
8002 case MONO_TYPE_SZARRAY:
8003 case MONO_TYPE_STRING:
8004 case MONO_TYPE_BOOLEAN:
8005 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8015 if (target_handle) {
8016 mono_mb_emit_icon (mb, (gint32)target_handle);
8017 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8020 g_assert_not_reached ();
8022 } else if (closed) {
8023 mono_mb_emit_icon (mb, (gint32)target_handle);
8024 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8027 for (i = 0; i < sig->param_count; i++) {
8028 MonoType *t = sig->params [i];
8030 if (tmp_locals [i]) {
8032 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8034 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8037 mono_mb_emit_ldarg (mb, i);
8040 /* ret = method (...) */
8041 mono_mb_emit_managed_call (mb, method, NULL);
8043 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8044 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8045 mono_class_init (klass);
8046 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8047 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8049 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8050 mono_mb_emit_stloc (mb, m->vtaddr_var);
8054 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8055 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8056 } else if (!sig->ret->byref) {
8057 switch (sig->ret->type) {
8058 case MONO_TYPE_VOID:
8060 case MONO_TYPE_BOOLEAN:
8063 case MONO_TYPE_CHAR:
8075 case MONO_TYPE_OBJECT:
8076 mono_mb_emit_stloc (mb, 3);
8078 case MONO_TYPE_STRING:
8079 csig->ret = &mono_defaults.int_class->byval_arg;
8080 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8082 case MONO_TYPE_VALUETYPE:
8083 case MONO_TYPE_CLASS:
8084 case MONO_TYPE_SZARRAY:
8085 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8088 g_warning ("return type 0x%02x unknown", sig->ret->type);
8089 g_assert_not_reached ();
8092 mono_mb_emit_stloc (mb, 3);
8095 /* Convert byref arguments back */
8096 for (i = 0; i < sig->param_count; i ++) {
8097 MonoType *t = sig->params [i];
8098 MonoMarshalSpec *spec = mspecs [i + 1];
8100 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8101 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8103 else if (t->byref) {
8105 case MONO_TYPE_CLASS:
8106 case MONO_TYPE_VALUETYPE:
8107 case MONO_TYPE_OBJECT:
8108 case MONO_TYPE_STRING:
8109 case MONO_TYPE_BOOLEAN:
8110 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8116 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8117 /* The [Out] information is encoded in the delegate signature */
8119 case MONO_TYPE_SZARRAY:
8120 case MONO_TYPE_CLASS:
8121 case MONO_TYPE_VALUETYPE:
8122 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8125 g_assert_not_reached ();
8130 if (mono_threads_is_coop_enabled ()) {
8131 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8134 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8135 clause->handler_offset = mono_mb_get_label (mb);
8139 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8141 * mono_jit_detach ();
8143 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8144 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8146 if (mono_threads_is_coop_enabled ()) {
8147 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8149 /* } [endfinally] */
8150 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8152 mono_mb_patch_branch (mb, leave_pos);
8156 if (m->retobj_var) {
8157 mono_mb_emit_ldloc (mb, m->retobj_var);
8158 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8159 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8162 if (!MONO_TYPE_IS_VOID(sig->ret))
8163 mono_mb_emit_ldloc (mb, 3);
8164 mono_mb_emit_byte (mb, CEE_RET);
8167 if (mono_threads_is_coop_enabled ()) {
8168 mono_mb_set_clauses (mb, 1, clause);
8177 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8179 MonoMethodSignature *sig;
8184 * Under windows, delegates passed to native code must use the STDCALL
8185 * calling convention.
8187 csig->call_convention = MONO_CALL_STDCALL;
8190 sig = mono_method_signature (method);
8192 /* Change default calling convention if needed */
8193 /* Why is this a modopt ? */
8194 if (sig->ret && sig->ret->num_mods) {
8195 for (i = 0; i < sig->ret->num_mods; ++i) {
8197 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8198 g_assert (mono_error_ok (&error));
8199 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8200 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8201 csig->call_convention = MONO_CALL_C;
8202 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8203 csig->call_convention = MONO_CALL_STDCALL;
8204 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8205 csig->call_convention = MONO_CALL_FASTCALL;
8206 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8207 csig->call_convention = MONO_CALL_THISCALL;
8214 * generates IL code to call managed methods from unmanaged code
8215 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8218 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8221 MonoMethodSignature *sig, *csig, *invoke_sig;
8222 MonoMethodBuilder *mb;
8223 MonoMethod *res, *invoke;
8224 MonoMarshalSpec **mspecs;
8225 MonoMethodPInvoke piinfo;
8228 EmitMarshalContext m;
8230 g_assert (method != NULL);
8231 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8234 * FIXME: Should cache the method+delegate type pair, since the same method
8235 * could be called with different delegates, thus different marshalling
8238 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8240 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8243 invoke = mono_get_delegate_invoke (delegate_klass);
8244 invoke_sig = mono_method_signature (invoke);
8246 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8247 mono_method_get_marshal_info (invoke, mspecs);
8249 sig = mono_method_signature (method);
8251 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8253 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8254 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8256 /* we copy the signature, so that we can modify it */
8258 /* Need to free this later */
8259 csig = mono_metadata_signature_dup (invoke_sig);
8261 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8265 memset (&m, 0, sizeof (m));
8271 m.image = method->klass->image;
8273 mono_marshal_set_callconv_from_modopt (invoke, csig);
8275 /* The attribute is only available in Net 2.0 */
8276 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8277 MonoCustomAttrInfo *cinfo;
8278 MonoCustomAttrEntry *attr;
8281 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8282 * contents of the attribute without constructing it, as that might not be
8283 * possible when running in cross-compiling mode.
8285 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8286 mono_error_assert_ok (&error);
8289 for (i = 0; i < cinfo->num_attrs; ++i) {
8290 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8291 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8292 attr = &cinfo->attrs [i];
8298 MonoArray *typed_args, *named_args;
8299 CattrNamedArg *arginfo;
8303 MonoBoolean set_last_error = 0;
8306 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8307 g_assert (mono_error_ok (&error));
8308 g_assert (mono_array_length (typed_args) == 1);
8311 o = mono_array_get (typed_args, MonoObject*, 0);
8312 call_conv = *(gint32*)mono_object_unbox (o);
8315 for (i = 0; i < mono_array_length (named_args); ++i) {
8316 CattrNamedArg *narg = &arginfo [i];
8318 o = mono_array_get (named_args, MonoObject*, i);
8320 g_assert (narg->field);
8321 if (!strcmp (narg->field->name, "CharSet")) {
8322 charset = *(gint32*)mono_object_unbox (o);
8323 } else if (!strcmp (narg->field->name, "SetLastError")) {
8324 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8325 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8326 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8327 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8328 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8330 g_assert_not_reached ();
8336 memset (&piinfo, 0, sizeof (piinfo));
8338 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8340 csig->call_convention = call_conv - 1;
8343 if (cinfo && !cinfo->cached)
8344 mono_custom_attrs_free (cinfo);
8347 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8349 if (!target_handle) {
8352 // FIXME: Associate it with the method+delegate_klass pair
8353 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8354 info->d.native_to_managed.method = method;
8355 info->d.native_to_managed.klass = delegate_klass;
8357 res = mono_mb_create_and_cache_full (cache, method,
8358 mb, csig, sig->param_count + 16,
8364 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8368 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8370 mono_metadata_free_marshal_spec (mspecs [i]);
8373 /* mono_method_print_code (res); */
8379 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8383 MonoMethodSignature *sig;
8384 MonoMethodBuilder *mb;
8389 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8391 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8394 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8395 MonoMethodSignature *csig;
8396 MonoMarshalSpec **mspecs;
8397 EmitMarshalContext m;
8399 sig = mono_method_signature (method);
8400 g_assert (!sig->hasthis);
8402 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8403 mono_method_get_marshal_info (method, mspecs);
8405 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8406 csig = mono_metadata_signature_dup_full (image, sig);
8410 memset (&m, 0, sizeof (m));
8418 mono_marshal_set_callconv_from_modopt (method, csig);
8420 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8422 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8427 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8430 for (i = sig->param_count; i >= 0; i--)
8432 mono_metadata_free_marshal_spec (mspecs [i]);
8435 return mono_compile_method (method);
8438 sig = mono_method_signature (method);
8439 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8441 param_count = sig->param_count + sig->hasthis;
8443 for (i = 0; i < param_count; i++)
8444 mono_mb_emit_ldarg (mb, i);
8446 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8447 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8449 mono_mb_emit_op (mb, CEE_CALL, method);
8450 mono_mb_emit_byte (mb, CEE_RET);
8455 method = mono_mb_create (mb, sig, param_count, NULL);
8458 return mono_compile_method (method);
8464 * The code directly following this is the cache hit, value positive branch
8466 * This function takes a new method builder with 0 locals and adds two locals
8467 * to create multiple out-branches and the fall through state of having the object
8468 * on the stack after a cache miss
8471 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8472 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8473 MonoMethodBuilder *mb)
8477 /* allocate local 0 (pointer) obj_vtable */
8478 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8479 /* allocate local 1 (pointer) cached_vtable */
8480 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8483 mono_mb_emit_ldarg (mb, obj_arg_position);
8484 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8486 /*obj_vtable = obj->vtable;*/
8487 mono_mb_emit_ldarg (mb, obj_arg_position);
8488 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8489 mono_mb_emit_byte (mb, CEE_LDIND_I);
8490 mono_mb_emit_stloc (mb, 0);
8492 /* cached_vtable = *cache*/
8493 mono_mb_emit_ldarg (mb, cache_arg_position);
8494 mono_mb_emit_byte (mb, CEE_LDIND_I);
8495 mono_mb_emit_stloc (mb, 1);
8497 mono_mb_emit_ldloc (mb, 1);
8498 mono_mb_emit_byte (mb, CEE_LDC_I4);
8499 mono_mb_emit_i4 (mb, ~0x1);
8500 mono_mb_emit_byte (mb, CEE_CONV_I);
8501 mono_mb_emit_byte (mb, CEE_AND);
8502 mono_mb_emit_ldloc (mb, 0);
8503 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8504 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8506 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8507 mono_mb_emit_ldloc (mb, 1);
8508 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8509 mono_mb_emit_byte (mb, CEE_CONV_U);
8510 mono_mb_emit_byte (mb, CEE_AND);
8511 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8512 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8515 mono_mb_patch_branch (mb, cache_miss_pos);
8518 mono_mb_emit_ldarg (mb, obj_arg_position);
8519 mono_mb_emit_ldarg (mb, class_arg_position);
8520 mono_mb_emit_ldarg (mb, cache_arg_position);
8521 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8524 #endif /* DISABLE_JIT */
8527 * This does the equivalent of mono_object_castclass_with_cache.
8528 * The wrapper info for the wrapper is a WrapperInfo structure.
8531 mono_marshal_get_castclass_with_cache (void)
8533 static MonoMethod *cached;
8535 MonoMethodBuilder *mb;
8536 MonoMethodSignature *sig;
8537 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8540 const int obj_arg_position = 0;
8541 const int class_arg_position = 1;
8542 const int cache_arg_position = 2;
8547 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8548 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8549 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8550 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8551 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8552 sig->ret = &mono_defaults.object_class->byval_arg;
8556 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8557 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8558 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8561 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8562 mono_mb_emit_ldarg (mb, obj_arg_position);
8563 mono_mb_emit_byte (mb, CEE_RET);
8566 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8567 mono_mb_patch_branch (mb, invalid_cast_pos);
8568 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8571 mono_mb_patch_branch (mb, return_null_pos);
8572 mono_mb_emit_byte (mb, CEE_LDNULL);
8573 mono_mb_emit_byte (mb, CEE_RET);
8574 #endif /* DISABLE_JIT */
8576 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8577 res = mono_mb_create (mb, sig, 8, info);
8580 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8581 mono_free_method (res);
8582 mono_metadata_free_method_signature (sig);
8590 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8592 MonoObject *isinst = mono_object_isinst (obj, klass);
8594 #ifndef DISABLE_REMOTING
8595 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8599 uintptr_t cache_update = (uintptr_t)obj->vtable;
8601 cache_update = cache_update | 0x1;
8603 *cache = cache_update;
8609 * This does the equivalent of mono_object_isinst_with_cache.
8610 * The wrapper info for the wrapper is a WrapperInfo structure.
8613 mono_marshal_get_isinst_with_cache (void)
8615 static MonoMethod *cached;
8617 MonoMethodBuilder *mb;
8618 MonoMethodSignature *sig;
8619 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8622 const int obj_arg_position = 0;
8623 const int class_arg_position = 1;
8624 const int cache_arg_position = 2;
8629 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8630 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8632 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8634 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8636 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8637 sig->ret = &mono_defaults.object_class->byval_arg;
8641 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8642 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8643 // Return the object gotten via the slow path.
8644 mono_mb_emit_byte (mb, CEE_RET);
8647 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8648 mono_mb_patch_branch (mb, return_null_pos);
8649 mono_mb_emit_byte (mb, CEE_LDNULL);
8650 mono_mb_emit_byte (mb, CEE_RET);
8653 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8654 mono_mb_emit_ldarg (mb, 0);
8655 mono_mb_emit_byte (mb, CEE_RET);
8658 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8659 res = mono_mb_create (mb, sig, 8, info);
8662 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8663 mono_free_method (res);
8664 mono_metadata_free_method_signature (sig);
8672 * mono_marshal_get_isinst:
8673 * @klass: the type of the field
8675 * This method generates a function which can be used to check if an object is
8676 * an instance of the given type, icluding the case where the object is a proxy.
8677 * The generated function has the following signature:
8678 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8681 mono_marshal_get_isinst (MonoClass *klass)
8683 static MonoMethodSignature *isint_sig = NULL;
8687 int pos_was_ok, pos_end;
8688 #ifndef DISABLE_REMOTING
8689 int pos_end2, pos_failed;
8692 MonoMethodBuilder *mb;
8694 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8695 if ((res = mono_marshal_find_in_cache (cache, klass)))
8699 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8700 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8701 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8702 isint_sig->pinvoke = 0;
8705 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8706 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8709 mb->method->save_lmf = 1;
8712 /* check if the object is a proxy that needs special cast */
8713 mono_mb_emit_ldarg (mb, 0);
8714 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8715 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8717 /* The result of MONO_CISINST can be:
8718 0) the type check succeeded
8719 1) the type check did not succeed
8720 2) a CanCastTo call is needed */
8721 #ifndef DISABLE_REMOTING
8722 mono_mb_emit_byte (mb, CEE_DUP);
8723 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8725 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8726 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8728 /* get the real proxy from the transparent proxy*/
8730 mono_mb_emit_ldarg (mb, 0);
8731 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8732 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8736 mono_mb_patch_branch (mb, pos_failed);
8737 mono_mb_emit_byte (mb, CEE_LDNULL);
8738 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8742 mono_mb_patch_branch (mb, pos_was_ok);
8743 mono_mb_emit_byte (mb, CEE_POP);
8744 mono_mb_emit_ldarg (mb, 0);
8748 mono_mb_patch_branch (mb, pos_end);
8749 mono_mb_patch_branch (mb, pos_end2);
8750 mono_mb_emit_byte (mb, CEE_RET);
8752 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8756 mono_mb_emit_byte (mb, CEE_LDNULL);
8757 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8761 mono_mb_patch_branch (mb, pos_was_ok);
8762 mono_mb_emit_ldarg (mb, 0);
8766 mono_mb_patch_branch (mb, pos_end);
8767 mono_mb_emit_byte (mb, CEE_RET);
8768 #endif /* DISABLE_REMOTING */
8769 #endif /* DISABLE_JIT */
8771 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8772 info->d.proxy.klass = klass;
8773 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8780 * mono_marshal_get_castclass:
8781 * @klass: the type of the field
8783 * This method generates a function which can be used to cast an object to
8784 * an instance of the given type, icluding the case where the object is a proxy.
8785 * The generated function has the following signature:
8786 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8787 * The wrapper info for the wrapper is a WrapperInfo structure.
8790 mono_marshal_get_castclass (MonoClass *klass)
8792 static MonoMethodSignature *castclass_sig = NULL;
8795 #ifndef DISABLE_REMOTING
8796 int pos_was_ok, pos_was_ok2;
8799 MonoMethodBuilder *mb;
8802 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8803 if ((res = mono_marshal_find_in_cache (cache, klass)))
8806 if (!castclass_sig) {
8807 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8808 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8809 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8810 castclass_sig->pinvoke = 0;
8813 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8814 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8817 mb->method->save_lmf = 1;
8820 /* check if the object is a proxy that needs special cast */
8821 mono_mb_emit_ldarg (mb, 0);
8822 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8823 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8825 /* The result of MONO_CCASTCLASS can be:
8826 0) the cast is valid
8827 1) cast of unknown proxy type
8828 or an exception if the cast is is invalid
8830 #ifndef DISABLE_REMOTING
8831 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8833 /* get the real proxy from the transparent proxy*/
8835 mono_mb_emit_ldarg (mb, 0);
8836 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8837 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8840 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8843 mono_mb_patch_branch (mb, pos_was_ok);
8844 mono_mb_patch_branch (mb, pos_was_ok2);
8846 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8847 mono_mb_emit_byte (mb, CEE_POP);
8848 #endif /* DISABLE_REMOTING */
8850 mono_mb_emit_ldarg (mb, 0);
8853 mono_mb_emit_byte (mb, CEE_RET);
8854 #endif /* DISABLE_JIT */
8856 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8858 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8866 * mono_marshal_get_struct_to_ptr:
8869 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8870 * The wrapper info for the wrapper is a WrapperInfo structure.
8873 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8875 MonoMethodBuilder *mb;
8876 static MonoMethod *stoptr = NULL;
8880 g_assert (klass != NULL);
8882 mono_marshal_load_type_info (klass);
8884 if (klass->marshal_info->str_to_ptr)
8885 return klass->marshal_info->str_to_ptr;
8888 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8891 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8894 if (klass->blittable) {
8895 mono_mb_emit_byte (mb, CEE_LDARG_1);
8896 mono_mb_emit_byte (mb, CEE_LDARG_0);
8897 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8898 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8899 mono_mb_emit_byte (mb, CEE_PREFIX1);
8900 mono_mb_emit_byte (mb, CEE_CPBLK);
8903 /* allocate local 0 (pointer) src_ptr */
8904 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8905 /* allocate local 1 (pointer) dst_ptr */
8906 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8907 /* allocate local 2 (boolean) delete_old */
8908 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8909 mono_mb_emit_byte (mb, CEE_LDARG_2);
8910 mono_mb_emit_stloc (mb, 2);
8912 /* initialize src_ptr to point to the start of object data */
8913 mono_mb_emit_byte (mb, CEE_LDARG_0);
8914 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8915 mono_mb_emit_stloc (mb, 0);
8917 /* initialize dst_ptr */
8918 mono_mb_emit_byte (mb, CEE_LDARG_1);
8919 mono_mb_emit_stloc (mb, 1);
8921 emit_struct_conv (mb, klass, FALSE);
8924 mono_mb_emit_byte (mb, CEE_RET);
8926 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8927 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8930 mono_marshal_lock ();
8931 if (!klass->marshal_info->str_to_ptr)
8932 klass->marshal_info->str_to_ptr = res;
8934 res = klass->marshal_info->str_to_ptr;
8935 mono_marshal_unlock ();
8940 * mono_marshal_get_ptr_to_struct:
8943 * generates IL code for PtrToStructure (IntPtr src, object structure)
8944 * The wrapper info for the wrapper is a WrapperInfo structure.
8947 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8949 MonoMethodBuilder *mb;
8950 static MonoMethodSignature *ptostr = NULL;
8954 g_assert (klass != NULL);
8956 mono_marshal_load_type_info (klass);
8958 if (klass->marshal_info->ptr_to_str)
8959 return klass->marshal_info->ptr_to_str;
8962 MonoMethodSignature *sig;
8964 /* Create the signature corresponding to
8965 static void PtrToStructure (IntPtr ptr, object structure);
8966 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8967 sig = mono_create_icall_signature ("void ptr object");
8968 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8970 mono_memory_barrier ();
8974 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8977 if (klass->blittable) {
8978 mono_mb_emit_byte (mb, CEE_LDARG_1);
8979 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8980 mono_mb_emit_byte (mb, CEE_LDARG_0);
8981 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8982 mono_mb_emit_byte (mb, CEE_PREFIX1);
8983 mono_mb_emit_byte (mb, CEE_CPBLK);
8986 /* allocate local 0 (pointer) src_ptr */
8987 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8988 /* allocate local 1 (pointer) dst_ptr */
8989 mono_mb_add_local (mb, &klass->this_arg);
8991 /* initialize src_ptr to point to the start of object data */
8992 mono_mb_emit_byte (mb, CEE_LDARG_0);
8993 mono_mb_emit_stloc (mb, 0);
8995 /* initialize dst_ptr */
8996 mono_mb_emit_byte (mb, CEE_LDARG_1);
8997 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8998 mono_mb_emit_stloc (mb, 1);
9000 emit_struct_conv (mb, klass, TRUE);
9003 mono_mb_emit_byte (mb, CEE_RET);
9005 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9006 res = mono_mb_create (mb, ptostr, 0, info);
9009 mono_marshal_lock ();
9010 if (!klass->marshal_info->ptr_to_str)
9011 klass->marshal_info->ptr_to_str = res;
9013 res = klass->marshal_info->ptr_to_str;
9014 mono_marshal_unlock ();
9019 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9020 * This is used to avoid infinite recursion since it is hard to determine where to
9021 * replace a method with its synchronized wrapper, and where not.
9022 * The runtime should execute METHOD instead of the wrapper.
9023 * The wrapper info for the wrapper is a WrapperInfo structure.
9026 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9028 MonoMethodBuilder *mb;
9030 MonoMethodSignature *sig;
9032 MonoGenericContext *ctx = NULL;
9033 MonoGenericContainer *container = NULL;
9035 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9036 ctx = &((MonoMethodInflated*)method)->context;
9037 method = ((MonoMethodInflated*)method)->declaring;
9038 container = mono_method_get_generic_container (method);
9040 container = method->klass->generic_container;
9041 g_assert (container);
9044 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9046 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9047 mono_mb_emit_byte (mb, CEE_RET);
9049 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9051 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9052 info->d.synchronized_inner.method = method;
9053 res = mono_mb_create (mb, sig, 0, info);
9057 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9058 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9064 * generates IL code for the synchronized wrapper: the generated method
9065 * calls METHOD while locking 'this' or the parent type.
9068 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9070 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9071 MonoMethodSignature *sig;
9072 MonoExceptionClause *clause;
9073 MonoMethodBuilder *mb;
9077 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9078 MonoGenericContext *ctx = NULL;
9079 MonoMethod *orig_method = NULL;
9080 MonoGenericContainer *container = NULL;
9084 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9087 /* FIXME: Support generic methods too */
9088 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9089 orig_method = method;
9090 ctx = &((MonoMethodInflated*)method)->context;
9091 method = ((MonoMethodInflated*)method)->declaring;
9092 container = mono_method_get_generic_container (method);
9094 container = method->klass->generic_container;
9095 g_assert (container);
9102 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9103 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9107 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9108 if ((res = mono_marshal_find_in_cache (cache, method)))
9112 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9115 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9117 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9118 info->d.synchronized.method = method;
9121 mb->skip_visibility = 1;
9123 if (!MONO_TYPE_IS_VOID (sig->ret))
9124 ret_local = mono_mb_add_local (mb, sig->ret);
9127 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9128 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9130 /* This will throw the type load exception when the wrapper is compiled */
9131 mono_mb_emit_byte (mb, CEE_LDNULL);
9132 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9133 mono_mb_emit_byte (mb, CEE_POP);
9135 if (!MONO_TYPE_IS_VOID (sig->ret))
9136 mono_mb_emit_ldloc (mb, ret_local);
9137 mono_mb_emit_byte (mb, CEE_RET);
9140 res = mono_mb_create_and_cache_full (cache, method,
9141 mb, sig, sig->param_count + 16, info, NULL);
9149 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9150 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9152 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9153 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9156 mono_marshal_lock ();
9158 if (!enter_method) {
9159 MonoMethodDesc *desc;
9161 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9162 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9163 g_assert (enter_method);
9164 mono_method_desc_free (desc);
9166 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9167 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9168 g_assert (exit_method);
9169 mono_method_desc_free (desc);
9171 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9172 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9173 g_assert (gettypefromhandle_method);
9174 mono_method_desc_free (desc);
9177 mono_marshal_unlock ();
9180 /* Push this or the type object */
9181 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9182 /* We have special handling for this in the JIT */
9183 int index = mono_mb_add_data (mb, method->klass);
9184 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9185 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9186 mono_mb_emit_i4 (mb, index);
9188 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9191 mono_mb_emit_ldarg (mb, 0);
9192 mono_mb_emit_stloc (mb, this_local);
9194 /* Call Monitor::Enter() */
9195 mono_mb_emit_ldloc (mb, this_local);
9196 mono_mb_emit_ldloc_addr (mb, taken_local);
9197 mono_mb_emit_managed_call (mb, enter_method, NULL);
9199 clause->try_offset = mono_mb_get_label (mb);
9201 /* Call the method */
9203 mono_mb_emit_ldarg (mb, 0);
9204 for (i = 0; i < sig->param_count; i++)
9205 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9209 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9210 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9212 mono_mb_emit_managed_call (mb, method, NULL);
9215 if (!MONO_TYPE_IS_VOID (sig->ret))
9216 mono_mb_emit_stloc (mb, ret_local);
9218 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9220 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9221 clause->handler_offset = mono_mb_get_label (mb);
9223 /* Call Monitor::Exit() if needed */
9224 mono_mb_emit_ldloc (mb, taken_local);
9225 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9226 mono_mb_emit_ldloc (mb, this_local);
9227 mono_mb_emit_managed_call (mb, exit_method, NULL);
9228 mono_mb_patch_branch (mb, pos2);
9229 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9231 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9233 mono_mb_patch_branch (mb, pos);
9234 if (!MONO_TYPE_IS_VOID (sig->ret))
9235 mono_mb_emit_ldloc (mb, ret_local);
9236 mono_mb_emit_byte (mb, CEE_RET);
9238 mono_mb_set_clauses (mb, 1, clause);
9243 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9244 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9246 res = mono_mb_create_and_cache_full (cache, method,
9247 mb, sig, sig->param_count + 16, info, NULL);
9256 * the returned method calls 'method' unboxing the this argument
9259 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9261 MonoMethodSignature *sig = mono_method_signature (method);
9263 MonoMethodBuilder *mb;
9268 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9270 if ((res = mono_marshal_find_in_cache (cache, method)))
9273 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9275 g_assert (sig->hasthis);
9278 mono_mb_emit_ldarg (mb, 0);
9279 mono_mb_emit_icon (mb, sizeof (MonoObject));
9280 mono_mb_emit_byte (mb, CEE_ADD);
9281 for (i = 0; i < sig->param_count; ++i)
9282 mono_mb_emit_ldarg (mb, i + 1);
9283 mono_mb_emit_managed_call (mb, method, NULL);
9284 mono_mb_emit_byte (mb, CEE_RET);
9287 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9288 info->d.unbox.method = method;
9290 res = mono_mb_create_and_cache_full (cache, method,
9291 mb, sig, sig->param_count + 16, info, NULL);
9294 /* mono_method_print_code (res); */
9300 STELEMREF_OBJECT, /*no check at all*/
9301 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9302 STELEMREF_CLASS, /*only the klass->parents check*/
9303 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9304 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9305 STELEMREF_KIND_COUNT
9308 static const char *strelemref_wrapper_name[] = {
9309 "object", "sealed_class", "class", "interface", "complex"
9313 is_monomorphic_array (MonoClass *klass)
9315 MonoClass *element_class;
9316 if (klass->rank != 1)
9319 element_class = klass->element_class;
9320 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9324 get_virtual_stelemref_kind (MonoClass *element_class)
9326 if (element_class == mono_defaults.object_class)
9327 return STELEMREF_OBJECT;
9328 if (is_monomorphic_array (element_class))
9329 return STELEMREF_SEALED_CLASS;
9330 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9331 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9332 #ifdef COMPRESSED_INTERFACE_BITMAP
9333 return STELEMREF_COMPLEX;
9335 return STELEMREF_INTERFACE;
9337 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9338 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9339 return STELEMREF_COMPLEX;
9340 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9341 return STELEMREF_SEALED_CLASS;
9342 return STELEMREF_CLASS;
9348 load_array_element_address (MonoMethodBuilder *mb)
9350 mono_mb_emit_ldarg (mb, 0);
9351 mono_mb_emit_ldarg (mb, 1);
9352 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9356 load_array_class (MonoMethodBuilder *mb, int aklass)
9358 mono_mb_emit_ldarg (mb, 0);
9359 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9360 mono_mb_emit_byte (mb, CEE_LDIND_I);
9361 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9362 mono_mb_emit_byte (mb, CEE_LDIND_I);
9363 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9364 mono_mb_emit_byte (mb, CEE_LDIND_I);
9365 mono_mb_emit_stloc (mb, aklass);
9369 load_value_class (MonoMethodBuilder *mb, int vklass)
9371 mono_mb_emit_ldarg (mb, 2);
9372 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9373 mono_mb_emit_byte (mb, CEE_LDIND_I);
9374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9375 mono_mb_emit_byte (mb, CEE_LDIND_I);
9376 mono_mb_emit_stloc (mb, vklass);
9382 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9384 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9385 printf ("slow vstore of %s\n", name);
9391 * The wrapper info for the wrapper is a WrapperInfo structure.
9394 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9395 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9396 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9397 * - Add a case for arrays of arrays.
9400 get_virtual_stelemref_wrapper (int kind)
9402 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9403 static MonoMethodSignature *signature;
9404 MonoMethodBuilder *mb;
9407 const char *param_names [16];
9409 int aklass, vklass, vtable, uiid;
9410 int array_slot_addr;
9413 if (cached_methods [kind])
9414 return cached_methods [kind];
9416 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9417 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9421 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9423 /* void this::stelemref (size_t idx, void* value) */
9424 sig->ret = &mono_defaults.void_class->byval_arg;
9425 sig->hasthis = TRUE;
9426 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9427 sig->params [1] = &mono_defaults.object_class->byval_arg;
9432 param_names [0] = "index";
9433 param_names [1] = "value";
9434 mono_mb_set_param_names (mb, param_names);
9436 /*For now simply call plain old stelemref*/
9438 case STELEMREF_OBJECT:
9439 /* ldelema (implicit bound check) */
9440 load_array_element_address (mb);
9442 mono_mb_emit_ldarg (mb, 2);
9443 mono_mb_emit_byte (mb, CEE_STIND_REF);
9444 mono_mb_emit_byte (mb, CEE_RET);
9447 case STELEMREF_COMPLEX:
9449 <ldelema (bound check)>
9452 if (!mono_object_isinst (value, aklass))
9456 *array_slot_addr = value;
9459 throw new ArrayTypeMismatchException ();
9462 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9463 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9467 /*Use this to debug/record stores that are going thru the slow path*/
9468 MonoMethodSignature *csig;
9469 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9470 csig->ret = &mono_defaults.void_class->byval_arg;
9471 csig->params [0] = &mono_defaults.object_class->byval_arg;
9472 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9473 csig->params [2] = &mono_defaults.object_class->byval_arg;
9474 mono_mb_emit_ldarg (mb, 0);
9475 mono_mb_emit_ldarg (mb, 1);
9476 mono_mb_emit_ldarg (mb, 2);
9477 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9481 /* ldelema (implicit bound check) */
9482 load_array_element_address (mb);
9483 mono_mb_emit_stloc (mb, array_slot_addr);
9485 /* if (!value) goto do_store */
9486 mono_mb_emit_ldarg (mb, 2);
9487 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9489 /* aklass = array->vtable->klass->element_class */
9490 load_array_class (mb, aklass);
9492 /*if (mono_object_isinst (value, aklass)) */
9493 mono_mb_emit_ldarg (mb, 2);
9494 mono_mb_emit_ldloc (mb, aklass);
9495 mono_mb_emit_icall (mb, mono_object_isinst);
9496 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9499 mono_mb_patch_branch (mb, b1);
9500 mono_mb_emit_ldloc (mb, array_slot_addr);
9501 mono_mb_emit_ldarg (mb, 2);
9502 mono_mb_emit_byte (mb, CEE_STIND_REF);
9503 mono_mb_emit_byte (mb, CEE_RET);
9506 mono_mb_patch_branch (mb, b2);
9508 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9511 case STELEMREF_SEALED_CLASS:
9513 <ldelema (bound check)>
9517 aklass = array->vtable->klass->element_class;
9518 vklass = value->vtable->klass;
9520 if (vklass != aklass)
9524 *array_slot_addr = value;
9527 throw new ArrayTypeMismatchException ();
9529 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9530 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9531 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9534 /* ldelema (implicit bound check) */
9535 load_array_element_address (mb);
9536 mono_mb_emit_stloc (mb, array_slot_addr);
9538 /* if (!value) goto do_store */
9539 mono_mb_emit_ldarg (mb, 2);
9540 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9542 /* aklass = array->vtable->klass->element_class */
9543 load_array_class (mb, aklass);
9545 /* vklass = value->vtable->klass */
9546 load_value_class (mb, vklass);
9548 /*if (vklass != aklass) goto do_exception; */
9549 mono_mb_emit_ldloc (mb, aklass);
9550 mono_mb_emit_ldloc (mb, vklass);
9551 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9554 mono_mb_patch_branch (mb, b1);
9555 mono_mb_emit_ldloc (mb, array_slot_addr);
9556 mono_mb_emit_ldarg (mb, 2);
9557 mono_mb_emit_byte (mb, CEE_STIND_REF);
9558 mono_mb_emit_byte (mb, CEE_RET);
9561 mono_mb_patch_branch (mb, b2);
9562 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9565 case STELEMREF_CLASS:
9568 <ldelema (bound check)>
9572 aklass = array->vtable->klass->element_class;
9573 vklass = value->vtable->klass;
9575 if (vklass->idepth < aklass->idepth)
9578 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9582 *array_slot_addr = value;
9586 throw new ArrayTypeMismatchException ();
9588 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9589 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9590 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9592 /* ldelema (implicit bound check) */
9593 load_array_element_address (mb);
9594 mono_mb_emit_stloc (mb, array_slot_addr);
9596 /* if (!value) goto do_store */
9597 mono_mb_emit_ldarg (mb, 2);
9598 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9600 /* aklass = array->vtable->klass->element_class */
9601 load_array_class (mb, aklass);
9603 /* vklass = value->vtable->klass */
9604 load_value_class (mb, vklass);
9606 /*if (mono_object_isinst (value, aklass)) */
9607 mono_mb_emit_ldarg (mb, 2);
9608 mono_mb_emit_ldloc (mb, aklass);
9609 mono_mb_emit_icall (mb, mono_object_isinst);
9610 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9612 /* if (vklass->idepth < aklass->idepth) goto failue */
9613 mono_mb_emit_ldloc (mb, vklass);
9614 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9615 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9617 mono_mb_emit_ldloc (mb, aklass);
9618 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9619 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9621 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9623 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9624 mono_mb_emit_ldloc (mb, vklass);
9625 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9626 mono_mb_emit_byte (mb, CEE_LDIND_I);
9628 mono_mb_emit_ldloc (mb, aklass);
9629 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9630 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9631 mono_mb_emit_icon (mb, 1);
9632 mono_mb_emit_byte (mb, CEE_SUB);
9633 mono_mb_emit_icon (mb, sizeof (void*));
9634 mono_mb_emit_byte (mb, CEE_MUL);
9635 mono_mb_emit_byte (mb, CEE_ADD);
9636 mono_mb_emit_byte (mb, CEE_LDIND_I);
9638 mono_mb_emit_ldloc (mb, aklass);
9639 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9642 mono_mb_patch_branch (mb, b1);
9643 mono_mb_emit_ldloc (mb, array_slot_addr);
9644 mono_mb_emit_ldarg (mb, 2);
9645 mono_mb_emit_byte (mb, CEE_STIND_REF);
9646 mono_mb_emit_byte (mb, CEE_RET);
9649 mono_mb_patch_branch (mb, b2);
9650 mono_mb_patch_branch (mb, b3);
9652 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9655 case STELEMREF_INTERFACE:
9662 klass = array->obj.vtable->klass->element_class;
9664 uiid = klass->interface_id;
9665 if (uiid > vt->max_interface_id)
9667 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9670 mono_array_setref (array, index, value);
9673 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9675 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9676 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9677 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9678 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9680 /* ldelema (implicit bound check) */
9681 load_array_element_address (mb);
9682 mono_mb_emit_stloc (mb, array_slot_addr);
9684 /* if (!value) goto do_store */
9685 mono_mb_emit_ldarg (mb, 2);
9686 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9688 /* klass = array->vtable->klass->element_class */
9689 load_array_class (mb, aklass);
9691 /* vt = value->vtable */
9692 mono_mb_emit_ldarg (mb, 2);
9693 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9694 mono_mb_emit_byte (mb, CEE_LDIND_I);
9695 mono_mb_emit_stloc (mb, vtable);
9697 /* uiid = klass->interface_id; */
9698 mono_mb_emit_ldloc (mb, aklass);
9699 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9700 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9701 mono_mb_emit_stloc (mb, uiid);
9703 /*if (uiid > vt->max_interface_id)*/
9704 mono_mb_emit_ldloc (mb, uiid);
9705 mono_mb_emit_ldloc (mb, vtable);
9706 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9707 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9708 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9710 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9712 /*vt->interface_bitmap*/
9713 mono_mb_emit_ldloc (mb, vtable);
9714 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9715 mono_mb_emit_byte (mb, CEE_LDIND_I);
9718 mono_mb_emit_ldloc (mb, uiid);
9719 mono_mb_emit_icon (mb, 3);
9720 mono_mb_emit_byte (mb, CEE_SHR_UN);
9722 /*vt->interface_bitmap [(uiid) >> 3]*/
9723 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9724 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9726 /*(1 << ((uiid)&7)))*/
9727 mono_mb_emit_icon (mb, 1);
9728 mono_mb_emit_ldloc (mb, uiid);
9729 mono_mb_emit_icon (mb, 7);
9730 mono_mb_emit_byte (mb, CEE_AND);
9731 mono_mb_emit_byte (mb, CEE_SHL);
9733 /*bitwise and the whole thing*/
9734 mono_mb_emit_byte (mb, CEE_AND);
9735 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9738 mono_mb_patch_branch (mb, b1);
9739 mono_mb_emit_ldloc (mb, array_slot_addr);
9740 mono_mb_emit_ldarg (mb, 2);
9741 mono_mb_emit_byte (mb, CEE_STIND_REF);
9742 mono_mb_emit_byte (mb, CEE_RET);
9745 mono_mb_patch_branch (mb, b2);
9746 mono_mb_patch_branch (mb, b3);
9747 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9751 mono_mb_emit_ldarg (mb, 0);
9752 mono_mb_emit_ldarg (mb, 1);
9753 mono_mb_emit_ldarg (mb, 2);
9754 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9755 mono_mb_emit_byte (mb, CEE_RET);
9758 #endif /* DISABLE_JIT */
9759 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9760 info->d.virtual_stelemref.kind = kind;
9761 res = mono_mb_create (mb, signature, 4, info);
9762 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9764 mono_marshal_lock ();
9765 if (!cached_methods [kind]) {
9766 cached_methods [kind] = res;
9767 mono_marshal_unlock ();
9769 mono_marshal_unlock ();
9770 mono_free_method (res);
9774 return cached_methods [kind];
9778 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9782 g_assert (array_class->rank == 1);
9783 kind = get_virtual_stelemref_kind (array_class->element_class);
9785 return get_virtual_stelemref_wrapper (kind);
9789 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9794 *nwrappers = STELEMREF_KIND_COUNT;
9795 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9796 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9797 res [i] = get_virtual_stelemref_wrapper (i);
9802 * The wrapper info for the wrapper is a WrapperInfo structure.
9805 mono_marshal_get_stelemref (void)
9807 static MonoMethod* ret = NULL;
9808 MonoMethodSignature *sig;
9809 MonoMethodBuilder *mb;
9812 guint32 b1, b2, b3, b4;
9815 int array_slot_addr;
9820 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9823 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9825 /* void stelemref (void* array, int idx, void* value) */
9826 sig->ret = &mono_defaults.void_class->byval_arg;
9827 sig->params [0] = &mono_defaults.object_class->byval_arg;
9828 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9829 sig->params [2] = &mono_defaults.object_class->byval_arg;
9832 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9833 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9834 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9838 <ldelema (bound check)>
9842 aklass = array->vtable->klass->element_class;
9843 vklass = value->vtable->klass;
9845 if (vklass->idepth < aklass->idepth)
9848 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9852 *array_slot_addr = value;
9856 if (mono_object_isinst (value, aklass))
9859 throw new ArrayTypeMismatchException ();
9862 /* ldelema (implicit bound check) */
9863 mono_mb_emit_ldarg (mb, 0);
9864 mono_mb_emit_ldarg (mb, 1);
9865 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9866 mono_mb_emit_stloc (mb, array_slot_addr);
9868 /* if (!value) goto do_store */
9869 mono_mb_emit_ldarg (mb, 2);
9870 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9872 /* aklass = array->vtable->klass->element_class */
9873 mono_mb_emit_ldarg (mb, 0);
9874 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9875 mono_mb_emit_byte (mb, CEE_LDIND_I);
9876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9877 mono_mb_emit_byte (mb, CEE_LDIND_I);
9878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9879 mono_mb_emit_byte (mb, CEE_LDIND_I);
9880 mono_mb_emit_stloc (mb, aklass);
9882 /* vklass = value->vtable->klass */
9883 mono_mb_emit_ldarg (mb, 2);
9884 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9885 mono_mb_emit_byte (mb, CEE_LDIND_I);
9886 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9887 mono_mb_emit_byte (mb, CEE_LDIND_I);
9888 mono_mb_emit_stloc (mb, vklass);
9890 /* if (vklass->idepth < aklass->idepth) goto failue */
9891 mono_mb_emit_ldloc (mb, vklass);
9892 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9893 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9895 mono_mb_emit_ldloc (mb, aklass);
9896 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9897 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9899 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9901 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9902 mono_mb_emit_ldloc (mb, vklass);
9903 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9904 mono_mb_emit_byte (mb, CEE_LDIND_I);
9906 mono_mb_emit_ldloc (mb, aklass);
9907 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9908 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9909 mono_mb_emit_icon (mb, 1);
9910 mono_mb_emit_byte (mb, CEE_SUB);
9911 mono_mb_emit_icon (mb, sizeof (void*));
9912 mono_mb_emit_byte (mb, CEE_MUL);
9913 mono_mb_emit_byte (mb, CEE_ADD);
9914 mono_mb_emit_byte (mb, CEE_LDIND_I);
9916 mono_mb_emit_ldloc (mb, aklass);
9918 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9920 copy_pos = mono_mb_get_label (mb);
9922 mono_mb_patch_branch (mb, b1);
9923 mono_mb_emit_ldloc (mb, array_slot_addr);
9924 mono_mb_emit_ldarg (mb, 2);
9925 mono_mb_emit_byte (mb, CEE_STIND_REF);
9927 mono_mb_emit_byte (mb, CEE_RET);
9930 mono_mb_patch_branch (mb, b2);
9931 mono_mb_patch_branch (mb, b3);
9933 mono_mb_emit_ldarg (mb, 2);
9934 mono_mb_emit_ldloc (mb, aklass);
9935 mono_mb_emit_icall (mb, mono_object_isinst);
9937 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9938 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9939 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9941 mono_mb_emit_byte (mb, CEE_RET);
9943 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9944 ret = mono_mb_create (mb, sig, 4, info);
9951 * mono_marshal_get_gsharedvt_in_wrapper:
9953 * This wrapper handles calls from normal code to gsharedvt code.
9955 * The wrapper info for the wrapper is a WrapperInfo structure.
9958 mono_marshal_get_gsharedvt_in_wrapper (void)
9960 static MonoMethod* ret = NULL;
9961 MonoMethodSignature *sig;
9962 MonoMethodBuilder *mb;
9968 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9970 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9971 sig->ret = &mono_defaults.void_class->byval_arg;
9975 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9977 mono_mb_emit_byte (mb, CEE_RET);
9979 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9980 ret = mono_mb_create (mb, sig, 4, info);
9987 * mono_marshal_get_gsharedvt_out_wrapper:
9989 * This wrapper handles calls from gsharedvt code to normal code.
9991 * The wrapper info for the wrapper is a WrapperInfo structure.
9994 mono_marshal_get_gsharedvt_out_wrapper (void)
9996 static MonoMethod* ret = NULL;
9997 MonoMethodSignature *sig;
9998 MonoMethodBuilder *mb;
10004 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10006 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10007 sig->ret = &mono_defaults.void_class->byval_arg;
10009 #ifndef DISABLE_JIT
10011 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10013 mono_mb_emit_byte (mb, CEE_RET);
10015 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10016 ret = mono_mb_create (mb, sig, 4, info);
10025 MonoMethod *method;
10028 /* LOCKING: vars accessed under the marshal lock */
10029 static ArrayElemAddr *elem_addr_cache = NULL;
10030 static int elem_addr_cache_size = 0;
10031 static int elem_addr_cache_next = 0;
10034 * mono_marshal_get_array_address:
10035 * @rank: rank of the array type
10036 * @elem_size: size in bytes of an element of an array.
10038 * Returns a MonoMethod that implements the code to get the address
10039 * of an element in a multi-dimenasional array of @rank dimensions.
10040 * The returned method takes an array as the first argument and then
10041 * @rank indexes for the @rank dimensions.
10042 * If ELEM_SIZE is 0, read the array size from the array object.
10045 mono_marshal_get_array_address (int rank, int elem_size)
10048 MonoMethodBuilder *mb;
10049 MonoMethodSignature *sig;
10052 int i, bounds, ind, realidx;
10053 int branch_pos, *branch_positions;
10057 mono_marshal_lock ();
10058 for (i = 0; i < elem_addr_cache_next; ++i) {
10059 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10060 ret = elem_addr_cache [i].method;
10064 mono_marshal_unlock ();
10068 branch_positions = g_new0 (int, rank);
10070 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10072 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10073 sig->ret = &mono_defaults.int_class->byval_arg;
10074 sig->params [0] = &mono_defaults.object_class->byval_arg;
10075 for (i = 0; i < rank; ++i) {
10076 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10079 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10080 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10083 #ifndef DISABLE_JIT
10084 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10085 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10086 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10088 /* bounds = array->bounds; */
10089 mono_mb_emit_ldarg (mb, 0);
10090 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10091 mono_mb_emit_byte (mb, CEE_LDIND_I);
10092 mono_mb_emit_stloc (mb, bounds);
10094 /* ind is the overall element index, realidx is the partial index in a single dimension */
10095 /* ind = idx0 - bounds [0].lower_bound */
10096 mono_mb_emit_ldarg (mb, 1);
10097 mono_mb_emit_ldloc (mb, bounds);
10098 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10099 mono_mb_emit_byte (mb, CEE_ADD);
10100 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10101 mono_mb_emit_byte (mb, CEE_SUB);
10102 mono_mb_emit_stloc (mb, ind);
10103 /* if (ind >= bounds [0].length) goto exeception; */
10104 mono_mb_emit_ldloc (mb, ind);
10105 mono_mb_emit_ldloc (mb, bounds);
10106 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10107 mono_mb_emit_byte (mb, CEE_ADD);
10108 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10109 /* note that we use unsigned comparison */
10110 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10112 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10113 * We could also decide to ignore the passed elem_size and get it
10114 * from the array object, to reduce the number of methods we generate:
10115 * the additional cost is 3 memory loads and a non-immediate mul.
10117 for (i = 1; i < rank; ++i) {
10118 /* realidx = idxi - bounds [i].lower_bound */
10119 mono_mb_emit_ldarg (mb, 1 + i);
10120 mono_mb_emit_ldloc (mb, bounds);
10121 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10122 mono_mb_emit_byte (mb, CEE_ADD);
10123 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10124 mono_mb_emit_byte (mb, CEE_SUB);
10125 mono_mb_emit_stloc (mb, realidx);
10126 /* if (realidx >= bounds [i].length) goto exeception; */
10127 mono_mb_emit_ldloc (mb, realidx);
10128 mono_mb_emit_ldloc (mb, bounds);
10129 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10130 mono_mb_emit_byte (mb, CEE_ADD);
10131 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10132 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10133 /* ind = ind * bounds [i].length + realidx */
10134 mono_mb_emit_ldloc (mb, ind);
10135 mono_mb_emit_ldloc (mb, bounds);
10136 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10137 mono_mb_emit_byte (mb, CEE_ADD);
10138 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10139 mono_mb_emit_byte (mb, CEE_MUL);
10140 mono_mb_emit_ldloc (mb, realidx);
10141 mono_mb_emit_byte (mb, CEE_ADD);
10142 mono_mb_emit_stloc (mb, ind);
10145 /* return array->vector + ind * element_size */
10146 mono_mb_emit_ldarg (mb, 0);
10147 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10148 mono_mb_emit_ldloc (mb, ind);
10150 mono_mb_emit_icon (mb, elem_size);
10152 /* Load arr->vtable->klass->sizes.element_class */
10153 mono_mb_emit_ldarg (mb, 0);
10154 mono_mb_emit_byte (mb, CEE_CONV_I);
10155 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10156 mono_mb_emit_byte (mb, CEE_ADD);
10157 mono_mb_emit_byte (mb, CEE_LDIND_I);
10158 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10159 mono_mb_emit_byte (mb, CEE_ADD);
10160 mono_mb_emit_byte (mb, CEE_LDIND_I);
10161 /* sizes is an union, so this reads sizes.element_size */
10162 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10163 mono_mb_emit_byte (mb, CEE_ADD);
10164 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10166 mono_mb_emit_byte (mb, CEE_MUL);
10167 mono_mb_emit_byte (mb, CEE_ADD);
10168 mono_mb_emit_byte (mb, CEE_RET);
10170 /* patch the branches to get here and throw */
10171 for (i = 1; i < rank; ++i) {
10172 mono_mb_patch_branch (mb, branch_positions [i]);
10174 mono_mb_patch_branch (mb, branch_pos);
10175 /* throw exception */
10176 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10178 g_free (branch_positions);
10179 #endif /* DISABLE_JIT */
10181 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10182 info->d.element_addr.rank = rank;
10183 info->d.element_addr.elem_size = elem_size;
10184 ret = mono_mb_create (mb, sig, 4, info);
10187 /* cache the result */
10189 mono_marshal_lock ();
10190 for (i = 0; i < elem_addr_cache_next; ++i) {
10191 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10192 /* FIXME: free ret */
10193 ret = elem_addr_cache [i].method;
10199 if (elem_addr_cache_next >= elem_addr_cache_size) {
10200 int new_size = elem_addr_cache_size + 4;
10201 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10202 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10203 g_free (elem_addr_cache);
10204 elem_addr_cache = new_array;
10205 elem_addr_cache_size = new_size;
10207 elem_addr_cache [elem_addr_cache_next].rank = rank;
10208 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10209 elem_addr_cache [elem_addr_cache_next].method = ret;
10210 elem_addr_cache_next ++;
10212 mono_marshal_unlock ();
10217 * mono_marshal_get_array_accessor_wrapper:
10219 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10222 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10224 MonoMethodSignature *sig;
10225 MonoMethodBuilder *mb;
10229 MonoGenericContext *ctx = NULL;
10230 MonoMethod *orig_method = NULL;
10231 MonoGenericContainer *container = NULL;
10235 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10236 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10237 * FIXME: Use generic methods.
10244 g_assert_not_reached ();
10246 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10247 if ((res = mono_marshal_find_in_cache (cache, method)))
10251 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10254 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10256 #ifndef DISABLE_JIT
10257 /* Call the method */
10259 mono_mb_emit_ldarg (mb, 0);
10260 for (i = 0; i < sig->param_count; i++)
10261 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10265 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10266 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10268 mono_mb_emit_managed_call (mb, method, NULL);
10270 mono_mb_emit_byte (mb, CEE_RET);
10273 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10274 info->d.array_accessor.method = method;
10278 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10279 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10281 res = mono_mb_create_and_cache_full (cache, method,
10282 mb, sig, sig->param_count + 16,
10291 mono_marshal_alloc (gulong size, MonoError *error)
10295 mono_error_init (error);
10298 res = CoTaskMemAlloc (size);
10300 res = g_try_malloc ((gulong)size);
10302 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10307 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10309 ves_icall_marshal_alloc (gulong size)
10312 void *ret = mono_marshal_alloc (size, &error);
10313 if (!mono_error_ok (&error)) {
10314 mono_error_set_pending_exception (&error);
10322 mono_marshal_free (gpointer ptr)
10325 CoTaskMemFree (ptr);
10332 mono_marshal_free_array (gpointer *ptr, int size)
10339 for (i = 0; i < size; i++)
10345 mono_marshal_string_to_utf16 (MonoString *s)
10347 return s ? mono_string_chars (s) : NULL;
10350 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10352 mono_marshal_string_to_utf16_copy (MonoString *s)
10358 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10359 if (!mono_error_ok (&error)) {
10360 mono_error_set_pending_exception (&error);
10363 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10364 res [mono_string_length (s)] = 0;
10370 * mono_marshal_set_last_error:
10372 * This function is invoked to set the last error value from a P/Invoke call
10373 * which has SetLastError set.
10376 mono_marshal_set_last_error (void)
10379 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10381 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10386 mono_marshal_set_last_error_windows (int error)
10389 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10394 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10395 gpointer dest, gint32 length)
10400 MONO_CHECK_ARG_NULL (src,);
10401 MONO_CHECK_ARG_NULL (dest,);
10403 if (src->obj.vtable->klass->rank != 1) {
10404 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10407 if (start_index < 0) {
10408 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10412 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10415 if (start_index + length > mono_array_length (src)) {
10416 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10420 element_size = mono_array_element_size (src->obj.vtable->klass);
10422 /* no references should be involved */
10423 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10425 memcpy (dest, source_addr, length * element_size);
10429 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10430 MonoArray *dest, gint32 length)
10435 MONO_CHECK_ARG_NULL (src,);
10436 MONO_CHECK_ARG_NULL (dest,);
10438 if (dest->obj.vtable->klass->rank != 1) {
10439 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10442 if (start_index < 0) {
10443 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10447 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10450 if (start_index + length > mono_array_length (dest)) {
10451 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10454 element_size = mono_array_element_size (dest->obj.vtable->klass);
10456 /* no references should be involved */
10457 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10459 memcpy (dest_addr, src, length * element_size);
10463 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10468 return mono_string_new (mono_domain_get (), ptr);
10472 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10475 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10478 return mono_string_new_len (mono_domain_get (), ptr, len);
10483 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10486 MonoString *res = NULL;
10487 MonoDomain *domain = mono_domain_get ();
10497 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10498 if (!mono_error_ok (&error)) {
10499 mono_error_set_pending_exception (&error);
10506 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10509 MonoString *res = NULL;
10510 MonoDomain *domain = mono_domain_get ();
10512 mono_error_init (&error);
10516 mono_error_set_argument_null (&error, "ptr", "");
10518 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10521 if (!mono_error_ok (&error))
10522 mono_error_set_pending_exception (&error);
10527 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10529 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10533 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10539 MONO_CHECK_ARG_NULL (rtype, 0);
10541 type = rtype->type;
10542 klass = mono_class_from_mono_type (type);
10543 if (!mono_class_init (klass)) {
10544 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10548 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10550 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10551 return sizeof (gpointer);
10552 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10554 MonoException *exc;
10556 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10557 exc = mono_get_exception_argument ("t", msg);
10559 mono_set_pending_exception (exc);
10563 return mono_class_native_size (klass, NULL);
10567 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10570 MonoMethod *method;
10573 MONO_CHECK_ARG_NULL (obj,);
10574 MONO_CHECK_ARG_NULL (dst,);
10576 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10580 pa [2] = &delete_old;
10582 mono_runtime_invoke_checked (method, NULL, pa, &error);
10583 if (!mono_error_ok (&error))
10584 mono_error_set_pending_exception (&error);
10588 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10590 MonoMethod *method;
10593 mono_error_init (error);
10595 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10600 mono_runtime_invoke_checked (method, NULL, pa, error);
10604 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10609 MONO_CHECK_ARG_NULL (src,);
10610 MONO_CHECK_ARG_NULL (dst,);
10612 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10614 if (t->type == MONO_TYPE_VALUETYPE) {
10615 MonoException *exc;
10618 tmp = g_strdup_printf ("Destination is a boxed value type.");
10619 exc = mono_get_exception_argument ("dst", tmp);
10622 mono_set_pending_exception (exc);
10626 ptr_to_structure (src, dst, &error);
10627 if (!mono_error_ok (&error))
10628 mono_error_set_pending_exception (&error);
10632 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10636 MonoDomain *domain = mono_domain_get ();
10641 MONO_CHECK_ARG_NULL (type, NULL);
10643 klass = mono_class_from_mono_type (type->type);
10644 if (!mono_class_init (klass)) {
10645 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10649 res = mono_object_new_checked (domain, klass, &error);
10650 if (!mono_error_ok (&error)) {
10651 mono_error_set_pending_exception (&error);
10655 ptr_to_structure (src, res, &error);
10656 if (!mono_error_ok (&error)) {
10657 mono_error_set_pending_exception (&error);
10665 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10667 MonoMarshalType *info;
10670 int match_index = -1;
10672 MONO_CHECK_ARG_NULL (type, 0);
10673 MONO_CHECK_ARG_NULL (field_name, 0);
10675 fname = mono_string_to_utf8 (field_name);
10676 klass = mono_class_from_mono_type (type->type);
10677 if (!mono_class_init (klass)) {
10678 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10682 while (klass && match_index == -1) {
10683 MonoClassField* field;
10685 gpointer iter = NULL;
10686 while ((field = mono_class_get_fields (klass, &iter))) {
10687 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10689 if (!strcmp (fname, mono_field_get_name (field))) {
10696 if (match_index == -1)
10697 klass = klass->parent;
10702 if(match_index == -1) {
10703 MonoException* exc;
10706 /* Get back original class instance */
10707 klass = mono_class_from_mono_type (type->type);
10709 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10710 exc = mono_get_exception_argument ("fieldName", tmp);
10713 mono_set_pending_exception ((MonoException*)exc);
10717 info = mono_marshal_load_type_info (klass);
10718 return info->fields [match_index].offset;
10722 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10727 tres = mono_string_to_utf8 (string);
10731 len = strlen (tres) + 1;
10732 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10733 memcpy (ret, tres, len);
10738 return mono_string_to_utf8 (string);
10743 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10745 if (string == NULL)
10748 #ifdef TARGET_WIN32
10749 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10750 ((mono_string_length (string) + 1) * 2);
10752 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10754 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10755 res [mono_string_length (string)] = 0;
10761 mono_struct_delete_old (MonoClass *klass, char *ptr)
10763 MonoMarshalType *info;
10766 info = mono_marshal_load_type_info (klass);
10768 for (i = 0; i < info->num_fields; i++) {
10769 MonoMarshalConv conv;
10770 MonoType *ftype = info->fields [i].field->type;
10773 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10776 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10777 klass->unicode, &conv);
10779 cpos = ptr + info->fields [i].offset;
10782 case MONO_MARSHAL_CONV_NONE:
10783 if (MONO_TYPE_ISSTRUCT (ftype)) {
10784 mono_struct_delete_old (ftype->data.klass, cpos);
10788 case MONO_MARSHAL_CONV_STR_LPWSTR:
10789 /* We assume this field points inside a MonoString */
10791 case MONO_MARSHAL_CONV_STR_LPTSTR:
10792 #ifdef TARGET_WIN32
10793 /* We assume this field points inside a MonoString
10797 case MONO_MARSHAL_CONV_STR_LPSTR:
10798 case MONO_MARSHAL_CONV_STR_BSTR:
10799 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10800 case MONO_MARSHAL_CONV_STR_TBSTR:
10801 mono_marshal_free (*(gpointer *)cpos);
10811 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10815 MONO_CHECK_ARG_NULL (src,);
10816 MONO_CHECK_ARG_NULL (type,);
10818 klass = mono_class_from_mono_type (type->type);
10819 if (!mono_class_init (klass)) {
10820 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10824 mono_struct_delete_old (klass, (char *)src);
10828 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10831 size_t s = (size_t)size;
10834 /* This returns a valid pointer for size 0 on MS.NET */
10838 res = GlobalAlloc (GMEM_FIXED, s);
10840 res = g_try_malloc (s);
10843 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10851 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10854 size_t s = (size_t)size;
10857 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10862 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10864 res = g_try_realloc (ptr, s);
10867 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10875 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10885 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10890 res = CoTaskMemAlloc (size);
10892 if ((gulong)size == 0)
10893 /* This returns a valid pointer for size 0 on MS.NET */
10896 res = g_try_malloc ((gulong)size);
10899 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10906 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10909 CoTaskMemFree (ptr);
10916 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10921 res = CoTaskMemRealloc (ptr, size);
10923 res = g_try_realloc (ptr, (gulong)size);
10926 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10933 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10935 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10939 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10941 MonoClass *klass = mono_type_get_class (type->type);
10942 if (!mono_class_init (klass)) {
10943 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10947 return mono_ftnptr_to_delegate (klass, ftn);
10951 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10953 return mono_delegate_to_ftnptr (delegate);
10957 * mono_marshal_is_loading_type_info:
10959 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10963 mono_marshal_is_loading_type_info (MonoClass *klass)
10965 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10967 return g_slist_find (loads_list, klass) != NULL;
10971 * mono_marshal_load_type_info:
10973 * Initialize klass->marshal_info using information from metadata. This function can
10974 * recursively call itself, and the caller is responsible to avoid that by calling
10975 * mono_marshal_is_loading_type_info () beforehand.
10977 * LOCKING: Acquires the loader lock.
10980 mono_marshal_load_type_info (MonoClass* klass)
10983 guint32 native_size = 0, min_align = 1, packing;
10984 MonoMarshalType *info;
10985 MonoClassField* field;
10988 GSList *loads_list;
10990 g_assert (klass != NULL);
10992 if (klass->marshal_info)
10993 return klass->marshal_info;
10995 if (!klass->inited)
10996 mono_class_init (klass);
10998 if (klass->marshal_info)
10999 return klass->marshal_info;
11002 * This function can recursively call itself, so we keep the list of classes which are
11003 * under initialization in a TLS list.
11005 g_assert (!mono_marshal_is_loading_type_info (klass));
11006 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11007 loads_list = g_slist_prepend (loads_list, klass);
11008 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11011 while ((field = mono_class_get_fields (klass, &iter))) {
11012 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11014 if (mono_field_is_deleted (field))
11019 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11021 /* The mempool is protected by the loader lock */
11022 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11023 info->num_fields = count;
11025 /* Try to find a size for this type in metadata */
11026 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11028 if (klass->parent) {
11029 int parent_size = mono_class_native_size (klass->parent, NULL);
11031 /* Add parent size to real size */
11032 native_size += parent_size;
11033 info->native_size = parent_size;
11036 packing = klass->packing_size ? klass->packing_size : 8;
11039 while ((field = mono_class_get_fields (klass, &iter))) {
11043 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11046 if (mono_field_is_deleted (field))
11048 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11049 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11050 NULL, NULL, &info->fields [j].mspec);
11052 info->fields [j].field = field;
11054 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11055 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11056 /* This field is a hack inserted by MCS to empty structures */
11061 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11062 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11063 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11064 &align, TRUE, klass->unicode);
11065 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11066 min_align = MAX (align, min_align);
11067 info->fields [j].offset = info->native_size;
11068 info->fields [j].offset += align - 1;
11069 info->fields [j].offset &= ~(align - 1);
11070 info->native_size = info->fields [j].offset + size;
11072 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11073 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11074 &align, TRUE, klass->unicode);
11075 min_align = MAX (align, min_align);
11076 info->fields [j].offset = field->offset - sizeof (MonoObject);
11077 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11083 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11084 info->native_size = MAX (native_size, info->native_size);
11086 * If the provided Size is equal or larger than the calculated size, and there
11087 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11089 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11090 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11093 min_align = MIN (min_align, packing);
11097 if (info->native_size & (min_align - 1)) {
11098 info->native_size += min_align - 1;
11099 info->native_size &= ~(min_align - 1);
11102 info->min_align = min_align;
11104 /* Update the class's blittable info, if the layouts don't match */
11105 if (info->native_size != mono_class_value_size (klass, NULL))
11106 klass->blittable = FALSE;
11108 /* If this is an array type, ensure that we have element info */
11109 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11110 mono_marshal_load_type_info (klass->element_class);
11113 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11114 loads_list = g_slist_remove (loads_list, klass);
11115 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11117 mono_marshal_lock ();
11118 if (!klass->marshal_info) {
11119 /*We do double-checking locking on marshal_info */
11120 mono_memory_barrier ();
11121 klass->marshal_info = info;
11123 mono_marshal_unlock ();
11125 return klass->marshal_info;
11129 * mono_class_native_size:
11132 * Returns: the native size of an object instance (when marshaled
11133 * to unmanaged code)
11136 mono_class_native_size (MonoClass *klass, guint32 *align)
11138 if (!klass->marshal_info) {
11139 if (mono_marshal_is_loading_type_info (klass)) {
11144 mono_marshal_load_type_info (klass);
11149 *align = klass->marshal_info->min_align;
11151 return klass->marshal_info->native_size;
11155 * mono_type_native_stack_size:
11156 * @t: the type to return the size it uses on the stack
11158 * Returns: the number of bytes required to hold an instance of this
11159 * type on the native stack
11162 mono_type_native_stack_size (MonoType *t, guint32 *align)
11166 g_assert (t != NULL);
11172 *align = sizeof (gpointer);
11173 return sizeof (gpointer);
11177 case MONO_TYPE_BOOLEAN:
11178 case MONO_TYPE_CHAR:
11189 case MONO_TYPE_STRING:
11190 case MONO_TYPE_OBJECT:
11191 case MONO_TYPE_CLASS:
11192 case MONO_TYPE_SZARRAY:
11193 case MONO_TYPE_PTR:
11194 case MONO_TYPE_FNPTR:
11195 case MONO_TYPE_ARRAY:
11196 *align = sizeof (gpointer);
11197 return sizeof (gpointer);
11202 *align = MONO_ABI_ALIGNOF (double);
11206 *align = MONO_ABI_ALIGNOF (gint64);
11208 case MONO_TYPE_GENERICINST:
11209 if (!mono_type_generic_inst_is_valuetype (t)) {
11210 *align = sizeof (gpointer);
11211 return sizeof (gpointer);
11214 case MONO_TYPE_TYPEDBYREF:
11215 case MONO_TYPE_VALUETYPE: {
11217 MonoClass *klass = mono_class_from_mono_type (t);
11219 if (klass->enumtype)
11220 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11222 size = mono_class_native_size (klass, align);
11223 *align = *align + 3;
11233 g_error ("type 0x%02x unknown", t->type);
11239 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11240 gboolean as_field, gboolean unicode)
11242 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11245 switch (native_type) {
11246 case MONO_NATIVE_BOOLEAN:
11249 case MONO_NATIVE_I1:
11250 case MONO_NATIVE_U1:
11253 case MONO_NATIVE_I2:
11254 case MONO_NATIVE_U2:
11255 case MONO_NATIVE_VARIANTBOOL:
11258 case MONO_NATIVE_I4:
11259 case MONO_NATIVE_U4:
11260 case MONO_NATIVE_ERROR:
11263 case MONO_NATIVE_I8:
11264 case MONO_NATIVE_U8:
11265 *align = MONO_ABI_ALIGNOF (gint64);
11267 case MONO_NATIVE_R4:
11270 case MONO_NATIVE_R8:
11271 *align = MONO_ABI_ALIGNOF (double);
11273 case MONO_NATIVE_INT:
11274 case MONO_NATIVE_UINT:
11275 case MONO_NATIVE_LPSTR:
11276 case MONO_NATIVE_LPWSTR:
11277 case MONO_NATIVE_LPTSTR:
11278 case MONO_NATIVE_BSTR:
11279 case MONO_NATIVE_ANSIBSTR:
11280 case MONO_NATIVE_TBSTR:
11281 case MONO_NATIVE_LPARRAY:
11282 case MONO_NATIVE_SAFEARRAY:
11283 case MONO_NATIVE_IUNKNOWN:
11284 case MONO_NATIVE_IDISPATCH:
11285 case MONO_NATIVE_INTERFACE:
11286 case MONO_NATIVE_ASANY:
11287 case MONO_NATIVE_FUNC:
11288 case MONO_NATIVE_LPSTRUCT:
11289 *align = MONO_ABI_ALIGNOF (gpointer);
11290 return sizeof (gpointer);
11291 case MONO_NATIVE_STRUCT:
11292 klass = mono_class_from_mono_type (type);
11293 if (klass == mono_defaults.object_class &&
11294 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11298 return mono_class_native_size (klass, align);
11299 case MONO_NATIVE_BYVALTSTR: {
11300 int esize = unicode ? 2: 1;
11303 return mspec->data.array_data.num_elem * esize;
11305 case MONO_NATIVE_BYVALARRAY: {
11306 // FIXME: Have to consider ArraySubType
11308 klass = mono_class_from_mono_type (type);
11309 if (klass->element_class == mono_defaults.char_class) {
11310 esize = unicode ? 2 : 1;
11313 esize = mono_class_native_size (klass->element_class, align);
11316 return mspec->data.array_data.num_elem * esize;
11318 case MONO_NATIVE_CUSTOM:
11319 *align = sizeof (gpointer);
11320 return sizeof (gpointer);
11322 case MONO_NATIVE_CURRENCY:
11323 case MONO_NATIVE_VBBYREFSTR:
11325 g_error ("native type %02x not implemented", native_type);
11328 g_assert_not_reached ();
11332 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11334 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11343 t = &o->vtable->klass->byval_arg;
11347 case MONO_TYPE_PTR:
11350 case MONO_TYPE_BOOLEAN:
11353 case MONO_TYPE_CHAR:
11358 return mono_object_unbox (o);
11360 case MONO_TYPE_STRING:
11361 switch (string_encoding) {
11362 case MONO_NATIVE_LPWSTR:
11363 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11365 case MONO_NATIVE_LPSTR:
11366 return mono_string_to_lpstr ((MonoString*)o);
11369 g_warning ("marshaling conversion %d not implemented", string_encoding);
11370 g_assert_not_reached ();
11373 case MONO_TYPE_CLASS:
11374 case MONO_TYPE_VALUETYPE: {
11375 MonoMethod *method;
11378 MonoBoolean delete_old = FALSE;
11380 klass = t->data.klass;
11382 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11385 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11386 klass->blittable || klass->enumtype))
11387 return mono_object_unbox (o);
11389 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11390 if (!mono_error_ok (&error)) {
11391 mono_error_set_pending_exception (&error);
11395 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11396 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11400 pa [2] = &delete_old;
11402 mono_runtime_invoke_checked (method, NULL, pa, &error);
11403 if (!mono_error_ok (&error)) {
11404 mono_error_set_pending_exception (&error);
11414 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11418 /* This is a JIT icall, it sets the pending exception */
11420 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11429 t = &o->vtable->klass->byval_arg;
11431 case MONO_TYPE_STRING:
11432 switch (string_encoding) {
11433 case MONO_NATIVE_LPWSTR:
11434 case MONO_NATIVE_LPSTR:
11435 mono_marshal_free (ptr);
11438 g_warning ("marshaling conversion %d not implemented", string_encoding);
11439 g_assert_not_reached ();
11442 case MONO_TYPE_CLASS:
11443 case MONO_TYPE_VALUETYPE: {
11444 klass = t->data.klass;
11446 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11447 klass->blittable || klass->enumtype))
11450 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11451 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11457 mono_runtime_invoke_checked (method, NULL, pa, &error);
11458 if (!mono_error_ok (&error)) {
11459 mono_error_set_pending_exception (&error);
11464 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11465 mono_struct_delete_old (klass, (char *)ptr);
11468 mono_marshal_free (ptr);
11477 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11479 MonoMethodSignature *sig, *csig;
11480 MonoMethodBuilder *mb;
11485 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11486 mb->method->slot = -1;
11488 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11489 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11491 sig = mono_method_signature (method);
11492 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11493 csig->generic_param_count = 0;
11495 #ifndef DISABLE_JIT
11496 mono_mb_emit_ldarg (mb, 0);
11497 for (i = 0; i < csig->param_count; i++)
11498 mono_mb_emit_ldarg (mb, i + 1);
11499 mono_mb_emit_managed_call (mb, method, NULL);
11500 mono_mb_emit_byte (mb, CEE_RET);
11502 /* We can corlib internal methods */
11503 mb->skip_visibility = TRUE;
11505 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11506 info->d.generic_array_helper.method = method;
11507 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11515 * The mono_win32_compat_* functions are implementations of inline
11516 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11517 * although not exported by kernel32.
11519 * We map the appropiate kernel32 entries to these functions using
11520 * dllmaps declared in the global etc/mono/config.
11524 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11526 if (!dest || !source)
11529 memcpy (dest, source, length);
11533 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11535 memset (dest, fill, length);
11539 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11541 if (!dest || !source)
11544 memmove (dest, source, length);
11548 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11550 memset (dest, 0, length);
11554 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11559 for (i = 0; i < len; ++i)
11563 g_assert (i < len);
11566 while (byte && !(byte & 1))
11568 g_assert (byte == 1);
11571 *bitmask = buf [i];
11575 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11577 MonoMethodBuilder *mb;
11578 MonoMethodSignature *sig, *csig;
11579 MonoExceptionClause *clause;
11584 int i, param_count, sig_size, pos_leave;
11585 int coop_gc_var, coop_gc_dummy_local;
11589 klass = method->klass;
11590 image = method->klass->image;
11592 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11594 if ((res = mono_marshal_find_in_cache (cache, method)))
11597 sig = mono_method_signature (method);
11598 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11600 /* add "this" and exception param */
11601 param_count = sig->param_count + sig->hasthis + 1;
11603 /* dup & extend signature */
11604 csig = mono_metadata_signature_alloc (image, param_count);
11605 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11606 memcpy (csig, sig, sig_size);
11607 csig->param_count = param_count;
11610 csig->call_convention = MONO_CALL_DEFAULT;
11612 if (sig->hasthis) {
11614 csig->params [0] = &klass->byval_arg;
11615 /* move params up by one */
11616 for (i = 0; i < sig->param_count; i++)
11617 csig->params [i + 1] = sig->params [i];
11620 /* setup exception param as byref+[out] */
11621 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11622 &mono_defaults.exception_class->byval_arg);
11623 csig->params [param_count - 1]->byref = 1;
11624 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11626 /* convert struct return to object */
11627 if (MONO_TYPE_ISSTRUCT (sig->ret))
11628 csig->ret = &mono_defaults.object_class->byval_arg;
11630 #ifndef DISABLE_JIT
11631 /* local 0 (temp for exception object) */
11632 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11634 /* local 1 (temp for result) */
11635 if (!MONO_TYPE_IS_VOID (sig->ret))
11636 mono_mb_add_local (mb, sig->ret);
11638 if (mono_threads_is_coop_enabled ()) {
11639 /* local 4, the local to be used when calling the reset_blocking funcs */
11640 /* tons of code hardcode 3 to be the return var */
11641 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11642 /* local 5, the local used to get a stack address for suspend funcs */
11643 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11646 /* clear exception arg */
11647 mono_mb_emit_ldarg (mb, param_count - 1);
11648 mono_mb_emit_byte (mb, CEE_LDNULL);
11649 mono_mb_emit_byte (mb, CEE_STIND_REF);
11651 if (mono_threads_is_coop_enabled ()) {
11652 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11653 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11654 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11655 mono_mb_emit_stloc (mb, coop_gc_var);
11659 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11660 clause->try_offset = mono_mb_get_label (mb);
11662 /* push method's args */
11663 for (i = 0; i < param_count - 1; i++) {
11667 mono_mb_emit_ldarg (mb, i);
11669 /* get the byval type of the param */
11670 klass = mono_class_from_mono_type (csig->params [i]);
11671 type = &klass->byval_arg;
11673 /* unbox struct args */
11674 if (MONO_TYPE_ISSTRUCT (type)) {
11675 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11677 /* byref args & and the "this" arg must remain a ptr.
11678 Otherwise make a copy of the value type */
11679 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11680 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11682 csig->params [i] = &mono_defaults.object_class->byval_arg;
11687 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11688 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11690 mono_mb_emit_op (mb, CEE_CALL, method);
11692 /* save result at local 1 */
11693 if (!MONO_TYPE_IS_VOID (sig->ret))
11694 mono_mb_emit_stloc (mb, 1);
11696 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11699 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11700 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11701 clause->data.catch_class = mono_defaults.object_class;
11703 clause->handler_offset = mono_mb_get_label (mb);
11705 /* store exception at local 0 */
11706 mono_mb_emit_stloc (mb, 0);
11707 mono_mb_emit_ldarg (mb, param_count - 1);
11708 mono_mb_emit_ldloc (mb, 0);
11709 mono_mb_emit_byte (mb, CEE_STIND_REF);
11710 mono_mb_emit_branch (mb, CEE_LEAVE);
11712 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11714 mono_mb_set_clauses (mb, 1, clause);
11716 mono_mb_patch_branch (mb, pos_leave);
11719 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11720 mono_mb_emit_ldloc (mb, 1);
11722 /* box the return value */
11723 if (MONO_TYPE_ISSTRUCT (sig->ret))
11724 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11727 if (mono_threads_is_coop_enabled ()) {
11728 /* XXX merge reset_blocking_end with detach */
11729 mono_mb_emit_ldloc (mb, coop_gc_var);
11730 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11731 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11734 mono_mb_emit_byte (mb, CEE_RET);
11737 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11744 * mono_marshal_free_dynamic_wrappers:
11746 * Free wrappers of the dynamic method METHOD.
11749 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11751 MonoImage *image = method->klass->image;
11753 g_assert (method_is_dynamic (method));
11755 /* This could be called during shutdown */
11756 if (marshal_mutex_initialized)
11757 mono_marshal_lock ();
11759 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11760 * they could be shared with other methods ?
11762 if (image->wrapper_caches.runtime_invoke_direct_cache)
11763 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11764 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11765 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11766 // FIXME: Need to clear the caches in other images as well
11767 if (image->delegate_bound_static_invoke_cache)
11768 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11770 if (marshal_mutex_initialized)
11771 mono_marshal_unlock ();