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 (mono_method_signature (method)->pinvoke) {
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)
2154 MonoMulticastDelegate *mcast_delegate;
2158 g_assert (delegate);
2159 mcast_delegate = (MonoMulticastDelegate *) delegate;
2160 if (mcast_delegate->delegates != NULL) {
2161 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2165 #ifndef DISABLE_REMOTING
2166 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2167 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2168 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2169 /* If the target is a proxy, make a direct call. Is proxy's work
2170 // to make the call asynchronous.
2172 MonoMethodMessage *msg;
2173 MonoDelegate *async_callback;
2175 MonoAsyncResult *ares;
2177 MonoArray *out_args;
2178 method = delegate->method;
2180 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2181 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2182 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2183 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2184 MONO_OBJECT_SETREF (msg, async_result, ares);
2185 msg->call_type = CallType_BeginInvoke;
2188 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2190 mono_set_pending_exception ((MonoException *) exc);
2196 klass = delegate->object.vtable->klass;
2198 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2200 method = mono_get_delegate_invoke (klass);
2203 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2209 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2211 int i, params_var, tmp_var;
2213 /* allocate local (pointer) *params[] */
2214 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2215 /* allocate local (pointer) tmp */
2216 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2218 /* alloate space on stack to store an array of pointers to the arguments */
2219 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2220 mono_mb_emit_byte (mb, CEE_PREFIX1);
2221 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2222 mono_mb_emit_stloc (mb, params_var);
2225 mono_mb_emit_ldloc (mb, params_var);
2226 mono_mb_emit_stloc (mb, tmp_var);
2228 if (save_this && sig->hasthis) {
2229 mono_mb_emit_ldloc (mb, tmp_var);
2230 mono_mb_emit_ldarg_addr (mb, 0);
2231 mono_mb_emit_byte (mb, CEE_STIND_I);
2232 /* tmp = tmp + sizeof (gpointer) */
2233 if (sig->param_count)
2234 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2238 for (i = 0; i < sig->param_count; i++) {
2239 mono_mb_emit_ldloc (mb, tmp_var);
2240 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2241 mono_mb_emit_byte (mb, CEE_STIND_I);
2242 /* tmp = tmp + sizeof (gpointer) */
2243 if (i < (sig->param_count - 1))
2244 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2250 #endif /* DISABLE_JIT */
2253 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2257 GString *res = g_string_new ("");
2260 g_string_append (res, prefix);
2261 g_string_append_c (res, '_');
2264 mono_type_get_desc (res, sig->ret, FALSE);
2267 g_string_append (res, "__this__");
2269 for (i = 0; i < sig->param_count; ++i) {
2270 g_string_append_c (res, '_');
2271 mono_type_get_desc (res, sig->params [i], FALSE);
2274 g_string_free (res, FALSE);
2279 * mono_marshal_get_string_encoding:
2281 * Return the string encoding which should be used for a given parameter.
2283 static MonoMarshalNative
2284 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2286 /* First try the parameter marshal info */
2288 if (spec->native == MONO_NATIVE_LPARRAY) {
2289 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2290 return spec->data.array_data.elem_type;
2293 return spec->native;
2297 return MONO_NATIVE_LPSTR;
2299 /* Then try the method level marshal info */
2300 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2301 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2302 return MONO_NATIVE_LPSTR;
2303 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2304 return MONO_NATIVE_LPWSTR;
2305 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2307 return MONO_NATIVE_LPWSTR;
2309 return MONO_NATIVE_LPSTR;
2312 return MONO_NATIVE_LPSTR;
2316 static MonoMarshalConv
2317 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2319 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2322 case MONO_NATIVE_LPWSTR:
2323 return MONO_MARSHAL_CONV_STR_LPWSTR;
2324 case MONO_NATIVE_LPSTR:
2325 case MONO_NATIVE_VBBYREFSTR:
2326 return MONO_MARSHAL_CONV_STR_LPSTR;
2327 case MONO_NATIVE_LPTSTR:
2328 return MONO_MARSHAL_CONV_STR_LPTSTR;
2329 case MONO_NATIVE_BSTR:
2330 return MONO_MARSHAL_CONV_STR_BSTR;
2332 return (MonoMarshalConv)-1;
2336 static MonoMarshalConv
2337 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2339 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2342 case MONO_NATIVE_LPWSTR:
2343 return MONO_MARSHAL_CONV_SB_LPWSTR;
2345 case MONO_NATIVE_LPSTR:
2346 return MONO_MARSHAL_CONV_SB_LPSTR;
2348 case MONO_NATIVE_LPTSTR:
2349 return MONO_MARSHAL_CONV_SB_LPTSTR;
2352 return (MonoMarshalConv)-1;
2356 static MonoMarshalConv
2357 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2359 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2364 case MONO_NATIVE_LPWSTR:
2366 return MONO_MARSHAL_CONV_LPWSTR_STR;
2367 case MONO_NATIVE_LPSTR:
2368 case MONO_NATIVE_VBBYREFSTR:
2369 return MONO_MARSHAL_CONV_LPSTR_STR;
2370 case MONO_NATIVE_LPTSTR:
2371 return MONO_MARSHAL_CONV_LPTSTR_STR;
2372 case MONO_NATIVE_BSTR:
2373 return MONO_MARSHAL_CONV_BSTR_STR;
2375 return (MonoMarshalConv)-1;
2379 static MonoMarshalConv
2380 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2382 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2387 case MONO_NATIVE_LPWSTR:
2389 * mono_string_builder_to_utf16 does not allocate a
2390 * new buffer, so no need to free it.
2393 return MONO_MARSHAL_CONV_LPWSTR_SB;
2394 case MONO_NATIVE_LPSTR:
2395 return MONO_MARSHAL_CONV_LPSTR_SB;
2397 case MONO_NATIVE_LPTSTR:
2398 return MONO_MARSHAL_CONV_LPTSTR_SB;
2401 return (MonoMarshalConv)-1;
2406 * Return whenever a field of a native structure or an array member needs to
2410 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2412 MonoMarshalNative encoding;
2415 case MONO_TYPE_VALUETYPE:
2416 /* FIXME: Optimize this */
2418 case MONO_TYPE_OBJECT:
2419 case MONO_TYPE_CLASS:
2420 if (t->data.klass == mono_defaults.stringbuilder_class) {
2422 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2426 case MONO_TYPE_STRING:
2427 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2428 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2435 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2438 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2441 mono_marshal_lock ();
2444 g_hash_table_new (hash_func, equal_func);
2445 mono_memory_barrier ();
2448 mono_marshal_unlock ();
2454 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2456 return get_cache (var, hash_func, equal_func);
2460 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2464 mono_marshal_lock ();
2465 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2466 mono_marshal_unlock ();
2473 * Create a MonoMethod from MB, set INFO as wrapper info.
2476 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2477 int max_stack, WrapperInfo *info)
2481 res = mono_mb_create_method (mb, sig, max_stack);
2483 mono_marshal_set_wrapper_info (res, info);
2487 /* Create the method from the builder and place it in the cache */
2489 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2490 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2491 int max_stack, WrapperInfo *info, gboolean *out_found)
2498 mono_marshal_lock ();
2499 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2500 mono_marshal_unlock ();
2503 newm = mono_mb_create_method (mb, sig, max_stack);
2504 mono_marshal_lock ();
2505 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2508 g_hash_table_insert (cache, key, res);
2509 mono_marshal_set_wrapper_info (res, info);
2510 mono_marshal_unlock ();
2514 mono_marshal_unlock ();
2515 mono_free_method (newm);
2523 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2524 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2527 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2531 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2534 int wrapper_type = wrapper->wrapper_type;
2537 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2540 info = mono_marshal_get_wrapper_info (wrapper);
2542 switch (wrapper_type) {
2543 case MONO_WRAPPER_REMOTING_INVOKE:
2544 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2545 case MONO_WRAPPER_XDOMAIN_INVOKE:
2546 m = info->d.remoting.method;
2547 if (wrapper->is_inflated) {
2551 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2552 * contains an uninflated method.
2554 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2555 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2559 case MONO_WRAPPER_SYNCHRONIZED:
2560 m = info->d.synchronized.method;
2561 if (wrapper->is_inflated) {
2564 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2565 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2569 case MONO_WRAPPER_UNBOX:
2570 return info->d.unbox.method;
2571 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2572 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2573 return info->d.managed_to_native.method;
2576 case MONO_WRAPPER_RUNTIME_INVOKE:
2577 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2578 return info->d.runtime_invoke.method;
2587 * mono_marshal_get_wrapper_info:
2589 * Retrieve the WrapperInfo structure associated with WRAPPER.
2592 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2594 g_assert (wrapper->wrapper_type);
2596 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2600 * mono_marshal_set_wrapper_info:
2602 * Set the WrapperInfo structure associated with the wrapper
2603 * method METHOD to INFO.
2606 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2610 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2613 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2618 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2622 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2623 info->subtype = subtype;
2628 * get_wrapper_target_class:
2630 * Return the class where a wrapper method should be placed.
2633 get_wrapper_target_class (MonoImage *image)
2640 * - can't put all wrappers into an mscorlib class, because they reference
2641 * metadata (signature) so they should be put into the same image as the
2642 * method they wrap, so they are unloaded together.
2643 * - putting them into a class with a type initalizer could cause the
2644 * initializer to be executed which can be a problem if the wrappers are
2646 * - putting them into an inflated class can cause problems if the the
2647 * class is deleted because it references an image which is unloaded.
2648 * To avoid these problems, we put the wrappers into the <Module> class of
2651 if (image_is_dynamic (image)) {
2652 klass = ((MonoDynamicImage*)image)->wrappers_type;
2654 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2655 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2663 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2664 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2668 * check_generic_wrapper_cache:
2670 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2671 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2672 * generic method definition.
2675 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2678 MonoMethod *inst, *def;
2679 MonoGenericContext *ctx;
2681 g_assert (orig_method->is_inflated);
2682 ctx = mono_method_get_context (orig_method);
2685 * Look for the instance
2687 res = mono_marshal_find_in_cache (cache, key);
2692 * Look for the definition
2694 def = mono_marshal_find_in_cache (cache, def_key);
2697 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2698 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2700 mono_memory_barrier ();
2701 mono_marshal_lock ();
2702 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2704 g_hash_table_insert (cache, key, inst);
2707 mono_marshal_unlock ();
2714 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2717 MonoMethod *inst, *res;
2720 * We use the same cache for the generic definition and the instances.
2722 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2723 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2724 mono_memory_barrier ();
2725 mono_marshal_lock ();
2726 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2728 g_hash_table_insert (cache, key, inst);
2731 mono_marshal_unlock ();
2736 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2740 MonoMethod *inst, *def;
2743 * Look for the instance
2745 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2750 * Look for the definition
2752 def = mono_marshal_find_in_cache (cache, def_method->klass);
2754 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2755 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2758 mono_memory_barrier ();
2759 mono_marshal_lock ();
2760 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2762 g_hash_table_insert (cache, orig_method->klass, inst);
2765 mono_marshal_unlock ();
2772 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2775 MonoMethod *inst, *res;
2778 * We use the same cache for the generic definition and the instances.
2780 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2781 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2783 mono_memory_barrier ();
2784 mono_marshal_lock ();
2785 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2787 g_hash_table_insert (cache, orig_method->klass, inst);
2790 mono_marshal_unlock ();
2795 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2797 MonoMethodSignature *sig;
2798 MonoMethodBuilder *mb;
2803 MonoGenericContext *ctx = NULL;
2804 MonoMethod *orig_method = NULL;
2806 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2807 !strcmp (method->name, "BeginInvoke"));
2810 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2812 if (method->is_inflated) {
2813 orig_method = method;
2814 ctx = &((MonoMethodInflated*)method)->context;
2815 method = ((MonoMethodInflated*)method)->declaring;
2818 sig = mono_signature_no_pinvoke (method);
2824 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2825 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2829 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2830 (GHashFunc)mono_signature_hash,
2831 (GCompareFunc)mono_metadata_signature_equal);
2832 if ((res = mono_marshal_find_in_cache (cache, sig)))
2836 g_assert (sig->hasthis);
2838 name = mono_signature_to_name (sig, "begin_invoke");
2840 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2842 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2846 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2848 mono_mb_emit_ldarg (mb, 0);
2849 mono_mb_emit_ldloc (mb, params_var);
2850 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2851 mono_mb_emit_byte (mb, CEE_RET);
2856 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2857 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2859 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2866 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2868 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2871 MonoDomain *domain = mono_domain_get ();
2872 MonoAsyncResult *ares;
2873 MonoMethod *method = NULL;
2874 MonoMethodSignature *sig;
2875 MonoMethodMessage *msg;
2876 MonoObject *res, *exc;
2877 MonoArray *out_args;
2880 g_assert (delegate);
2882 if (!delegate->method_info) {
2883 g_assert (delegate->method);
2884 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2885 if (!mono_error_ok (&error)) {
2886 mono_error_set_pending_exception (&error);
2889 MONO_OBJECT_SETREF (delegate, method_info, rm);
2892 if (!delegate->method_info || !delegate->method_info->method)
2893 g_assert_not_reached ();
2895 klass = delegate->object.vtable->klass;
2897 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2898 g_assert (method != NULL);
2900 sig = mono_signature_no_pinvoke (method);
2902 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2904 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2906 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."));
2910 if (ares->async_delegate != (MonoObject*)delegate) {
2911 mono_set_pending_exception (mono_get_exception_invalid_operation (
2912 "The IAsyncResult object provided does not match this delegate."));
2916 #ifndef DISABLE_REMOTING
2917 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2918 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2919 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2920 if (!mono_error_ok (&error)) {
2921 mono_error_set_pending_exception (&error);
2924 mono_message_init (domain, msg, delegate->method_info, NULL);
2925 msg->call_type = CallType_EndInvoke;
2926 MONO_OBJECT_SETREF (msg, async_result, ares);
2927 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2931 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2935 if (((MonoException*)exc)->stack_trace) {
2936 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2938 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2940 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2943 mono_set_pending_exception ((MonoException*)exc);
2946 mono_method_return_message_restore (method, params, out_args);
2953 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2955 MonoType *t = mono_type_get_underlying_type (return_type);
2957 if (return_type->byref)
2958 return_type = &mono_defaults.int_class->byval_arg;
2961 case MONO_TYPE_VOID:
2962 g_assert_not_reached ();
2965 case MONO_TYPE_STRING:
2966 case MONO_TYPE_CLASS:
2967 case MONO_TYPE_OBJECT:
2968 case MONO_TYPE_ARRAY:
2969 case MONO_TYPE_SZARRAY:
2973 case MONO_TYPE_BOOLEAN:
2976 case MONO_TYPE_CHAR:
2986 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2987 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2989 case MONO_TYPE_GENERICINST:
2990 if (!mono_type_generic_inst_is_valuetype (t))
2993 case MONO_TYPE_VALUETYPE: {
2994 MonoClass *klass = mono_class_from_mono_type (return_type);
2995 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2996 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3000 case MONO_TYPE_MVAR: {
3001 MonoClass *klass = mono_class_from_mono_type (return_type);
3002 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3006 g_warning ("type 0x%x not handled", return_type->type);
3007 g_assert_not_reached ();
3010 mono_mb_emit_byte (mb, CEE_RET);
3013 #endif /* DISABLE_JIT */
3016 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3018 MonoMethodSignature *sig;
3019 MonoMethodBuilder *mb;
3024 MonoGenericContext *ctx = NULL;
3025 MonoMethod *orig_method = NULL;
3027 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3028 !strcmp (method->name, "EndInvoke"));
3031 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3033 if (method->is_inflated) {
3034 orig_method = method;
3035 ctx = &((MonoMethodInflated*)method)->context;
3036 method = ((MonoMethodInflated*)method)->declaring;
3039 sig = mono_signature_no_pinvoke (method);
3045 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3046 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3050 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3051 (GHashFunc)mono_signature_hash,
3052 (GCompareFunc)mono_metadata_signature_equal);
3053 if ((res = mono_marshal_find_in_cache (cache, sig)))
3057 g_assert (sig->hasthis);
3059 name = mono_signature_to_name (sig, "end_invoke");
3061 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3063 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3067 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3069 mono_mb_emit_ldarg (mb, 0);
3070 mono_mb_emit_ldloc (mb, params_var);
3071 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3073 if (sig->ret->type == MONO_TYPE_VOID) {
3074 mono_mb_emit_byte (mb, CEE_POP);
3075 mono_mb_emit_byte (mb, CEE_RET);
3077 mono_mb_emit_restore_result (mb, sig->ret);
3082 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3083 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3085 res = mono_mb_create_and_cache (cache, sig,
3086 mb, sig, sig->param_count + 16);
3095 MonoMethodSignature *sig;
3097 } SignaturePointerPair;
3100 signature_pointer_pair_hash (gconstpointer data)
3102 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3104 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3108 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3110 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3111 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3115 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3117 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3119 return pair->pointer == user_data;
3123 free_signature_pointer_pair (SignaturePointerPair *pair)
3129 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3131 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3133 MonoMethodBuilder *mb;
3136 gpointer cache_key = NULL;
3137 SignaturePointerPair key;
3138 SignaturePointerPair *new_key;
3139 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3140 int pos0, pos1, pos2;
3142 MonoClass *target_class = NULL;
3143 gboolean closed_over_null = FALSE;
3144 MonoGenericContext *ctx = NULL;
3145 MonoGenericContainer *container = NULL;
3146 MonoMethod *orig_method = NULL;
3148 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3152 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3153 !strcmp (method->name, "Invoke"));
3155 invoke_sig = sig = mono_signature_no_pinvoke (method);
3158 * If the delegate target is null, and the target method is not static, a virtual
3159 * call is made to that method with the first delegate argument as this. This is
3160 * a non-documented .NET feature.
3163 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3164 if (target_method->is_inflated) {
3165 MonoType *target_type;
3167 g_assert (method->signature->hasthis);
3168 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3169 mono_method_get_context (method));
3170 target_class = mono_class_from_mono_type (target_type);
3172 target_class = target_method->klass;
3175 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3178 if (static_method_with_first_arg_bound) {
3179 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3180 g_assert (!callvirt);
3181 invoke_sig = mono_method_signature (target_method);
3185 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3187 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3188 orig_method = method;
3189 ctx = &((MonoMethodInflated*)method)->context;
3190 method = ((MonoMethodInflated*)method)->declaring;
3192 container = mono_method_get_generic_container (method);
3194 container = method->klass->generic_container;
3195 g_assert (container);
3197 invoke_sig = sig = mono_signature_no_pinvoke (method);
3204 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3205 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3208 cache_key = method->klass;
3209 } else if (static_method_with_first_arg_bound) {
3210 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3211 (GHashFunc)mono_signature_hash,
3212 (GCompareFunc)mono_metadata_signature_equal);
3214 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3216 res = mono_marshal_find_in_cache (cache, invoke_sig);
3219 cache_key = invoke_sig;
3220 } else if (callvirt) {
3221 GHashTable **cache_ptr;
3223 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3225 /* We need to cache the signature+method pair */
3226 mono_marshal_lock ();
3228 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3230 key.sig = invoke_sig;
3231 key.pointer = target_method;
3232 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3233 mono_marshal_unlock ();
3237 // Inflated methods should not be in this cache because it's not stored on the imageset.
3238 g_assert (!method->is_inflated);
3239 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3240 (GHashFunc)mono_signature_hash,
3241 (GCompareFunc)mono_metadata_signature_equal);
3242 res = mono_marshal_find_in_cache (cache, sig);
3248 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3249 static_sig->hasthis = 0;
3250 if (!static_method_with_first_arg_bound)
3251 invoke_sig = static_sig;
3253 if (static_method_with_first_arg_bound)
3254 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3255 else if (closed_over_null)
3256 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3258 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3260 name = mono_signature_to_name (invoke_sig, "invoke");
3262 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3264 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3268 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3270 /* allocate local 0 (object) */
3271 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3272 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3273 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3274 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3275 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3278 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3280 g_assert (sig->hasthis);
3283 * {type: sig->ret} res;
3284 * if (delegates == null) {
3285 * return this.<target> ( args .. );
3287 * int i = 0, len = this.delegates.Length;
3289 * res = this.delegates [i].Invoke ( args .. );
3290 * } while (++i < len);
3295 /* this wrapper can be used in unmanaged-managed transitions */
3296 emit_thread_interrupt_checkpoint (mb);
3298 /* delegates = this.delegates */
3299 mono_mb_emit_ldarg (mb, 0);
3300 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3301 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3302 mono_mb_emit_stloc (mb, local_delegates);
3305 /* if (delegates == null) */
3306 mono_mb_emit_ldloc (mb, local_delegates);
3307 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3309 /* return target.<target_method|method_ptr> ( args .. ); */
3311 /* target = d.target; */
3312 mono_mb_emit_ldarg (mb, 0);
3313 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3314 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3315 mono_mb_emit_stloc (mb, local_target);
3317 /*static methods with bound first arg can have null target and still be bound*/
3318 if (!static_method_with_first_arg_bound) {
3319 /* if target != null */
3320 mono_mb_emit_ldloc (mb, local_target);
3321 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3323 /* then call this->method_ptr nonstatic */
3326 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3328 mono_mb_emit_ldloc (mb, local_target);
3329 for (i = 0; i < sig->param_count; ++i)
3330 mono_mb_emit_ldarg (mb, i + 1);
3331 mono_mb_emit_ldarg (mb, 0);
3332 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3333 mono_mb_emit_byte (mb, CEE_LDIND_I);
3334 mono_mb_emit_ldarg (mb, 0);
3335 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3336 mono_mb_emit_byte (mb, CEE_LDIND_I);
3337 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3338 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3339 mono_mb_emit_byte (mb, CEE_RET);
3342 /* else [target == null] call this->method_ptr static */
3343 mono_mb_patch_branch (mb, pos0);
3347 if (!closed_over_null) {
3348 if (target_class->valuetype) {
3349 mono_mb_emit_ldarg (mb, 1);
3350 for (i = 1; i < sig->param_count; ++i)
3351 mono_mb_emit_ldarg (mb, i + 1);
3352 mono_mb_emit_op (mb, CEE_CALL, target_method);
3354 mono_mb_emit_ldarg (mb, 1);
3355 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3356 for (i = 1; i < sig->param_count; ++i)
3357 mono_mb_emit_ldarg (mb, i + 1);
3358 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3361 mono_mb_emit_byte (mb, CEE_LDNULL);
3362 for (i = 0; i < sig->param_count; ++i)
3363 mono_mb_emit_ldarg (mb, i + 1);
3364 mono_mb_emit_op (mb, CEE_CALL, target_method);
3367 if (static_method_with_first_arg_bound) {
3368 mono_mb_emit_ldloc (mb, local_target);
3369 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3370 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3372 for (i = 0; i < sig->param_count; ++i)
3373 mono_mb_emit_ldarg (mb, i + 1);
3374 mono_mb_emit_ldarg (mb, 0);
3375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3376 mono_mb_emit_byte (mb, CEE_LDIND_I);
3377 mono_mb_emit_ldarg (mb, 0);
3378 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3379 mono_mb_emit_byte (mb, CEE_LDIND_I);
3380 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3381 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3384 mono_mb_emit_byte (mb, CEE_RET);
3386 /* else [delegates != null] */
3387 mono_mb_patch_branch (mb, pos2);
3389 /* len = delegates.Length; */
3390 mono_mb_emit_ldloc (mb, local_delegates);
3391 mono_mb_emit_byte (mb, CEE_LDLEN);
3392 mono_mb_emit_byte (mb, CEE_CONV_I4);
3393 mono_mb_emit_stloc (mb, local_len);
3396 mono_mb_emit_icon (mb, 0);
3397 mono_mb_emit_stloc (mb, local_i);
3399 pos1 = mono_mb_get_label (mb);
3401 /* d = delegates [i]; */
3402 mono_mb_emit_ldloc (mb, local_delegates);
3403 mono_mb_emit_ldloc (mb, local_i);
3404 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3405 mono_mb_emit_stloc (mb, local_d);
3407 /* res = d.Invoke ( args .. ); */
3408 mono_mb_emit_ldloc (mb, local_d);
3409 for (i = 0; i < sig->param_count; i++)
3410 mono_mb_emit_ldarg (mb, i + 1);
3412 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3415 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3416 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3419 mono_mb_emit_stloc (mb, local_res);
3422 mono_mb_emit_add_to_local (mb, local_i, 1);
3425 mono_mb_emit_ldloc (mb, local_i);
3426 mono_mb_emit_ldloc (mb, local_len);
3427 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3431 mono_mb_emit_ldloc (mb, local_res);
3432 mono_mb_emit_byte (mb, CEE_RET);
3434 mb->skip_visibility = 1;
3435 #endif /* DISABLE_JIT */
3437 info = mono_wrapper_info_create (mb, subtype);
3442 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3443 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3444 } else if (callvirt) {
3445 new_key = g_new0 (SignaturePointerPair, 1);
3448 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3452 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3456 /* mono_method_print_code (res); */
3462 * the returned method invokes all methods in a multicast delegate.
3465 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3467 gboolean callvirt = FALSE;
3468 gboolean static_method_with_first_arg_bound = FALSE;
3469 MonoMethod *target_method = NULL;
3470 MonoMethodSignature *sig;
3472 sig = mono_signature_no_pinvoke (method);
3474 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3476 target_method = del->method;
3479 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3480 static_method_with_first_arg_bound = TRUE;
3481 target_method = del->method;
3484 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3488 MonoMethodSignature *ctor_sig;
3489 MonoMethodSignature *sig;
3492 /* protected by the marshal lock, contains CtorSigPair pointers */
3493 static GSList *strsig_list = NULL;
3495 static MonoMethodSignature *
3496 lookup_string_ctor_signature (MonoMethodSignature *sig)
3498 MonoMethodSignature *callsig;
3502 mono_marshal_lock ();
3504 for (item = strsig_list; item; item = item->next) {
3505 cs = (CtorSigPair *)item->data;
3506 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3507 * because it is lock-free.
3509 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3514 mono_marshal_unlock ();
3518 static MonoMethodSignature *
3519 add_string_ctor_signature (MonoMethod *method)
3521 MonoMethodSignature *callsig;
3524 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3525 callsig->ret = &mono_defaults.string_class->byval_arg;
3526 cs = g_new (CtorSigPair, 1);
3528 cs->ctor_sig = mono_method_signature (method);
3530 mono_marshal_lock ();
3531 strsig_list = g_slist_prepend (strsig_list, cs);
3532 mono_marshal_unlock ();
3537 * mono_marshal_get_string_ctor_signature:
3539 * Return the modified signature used by string ctors (they return the newly created
3542 MonoMethodSignature*
3543 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3545 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3547 sig = add_string_ctor_signature (method);
3553 get_runtime_invoke_type (MonoType *t, gboolean ret)
3556 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3558 /* Can't share this with 'I' as that needs another indirection */
3559 return &mono_defaults.int_class->this_arg;
3562 if (MONO_TYPE_IS_REFERENCE (t))
3563 return &mono_defaults.object_class->byval_arg;
3566 /* The result needs to be boxed */
3571 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3574 return &mono_defaults.sbyte_class->byval_arg;
3576 return &mono_defaults.int16_class->byval_arg;
3578 return &mono_defaults.int32_class->byval_arg;
3581 return &mono_defaults.int64_class->byval_arg;
3582 case MONO_TYPE_BOOLEAN:
3583 return &mono_defaults.byte_class->byval_arg;
3584 case MONO_TYPE_CHAR:
3585 return &mono_defaults.uint16_class->byval_arg;
3587 return &mono_defaults.int_class->byval_arg;
3588 case MONO_TYPE_VALUETYPE:
3589 if (t->data.klass->enumtype) {
3590 t = mono_class_enum_basetype (t->data.klass);
3600 * mono_marshal_get_runtime_invoke_sig:
3602 * Return a common signature used for sharing runtime invoke wrappers.
3604 static MonoMethodSignature*
3605 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3607 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3610 res->generic_param_count = 0;
3611 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3612 for (i = 0; i < res->param_count; ++i)
3613 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3619 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3621 /* Can't share wrappers which return a vtype since it needs to be boxed */
3622 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))
3625 return mono_metadata_signature_equal (sig1, sig2);
3633 * Emit the call to the wrapper method from a runtime invoke wrapper.
3636 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3637 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3639 gboolean virtual_, gboolean need_direct_wrapper)
3641 static MonoString *string_dummy = NULL;
3643 int *tmp_nullable_locals;
3644 gboolean void_ret = FALSE;
3645 gboolean string_ctor = method && method->string_ctor;
3647 /* to make it work with our special string constructors */
3648 if (!string_dummy) {
3649 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3650 string_dummy = mono_string_new_wrapper ("dummy");
3654 g_assert (sig->hasthis);
3655 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3660 if (mono_gc_is_moving ()) {
3661 mono_mb_emit_ptr (mb, &string_dummy);
3662 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3664 mono_mb_emit_ptr (mb, string_dummy);
3667 mono_mb_emit_ldarg (mb, 0);
3671 tmp_nullable_locals = g_new0 (int, sig->param_count);
3673 for (i = 0; i < sig->param_count; i++) {
3674 MonoType *t = sig->params [i];
3677 mono_mb_emit_ldarg (mb, 1);
3679 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3680 mono_mb_emit_byte (mb, CEE_ADD);
3684 mono_mb_emit_byte (mb, CEE_LDIND_I);
3685 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3686 * So to make this work we unbox it to a local variablee and push a reference to that.
3688 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3689 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3691 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3692 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3693 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3698 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3699 type = sig->params [i]->type;
3703 case MONO_TYPE_BOOLEAN:
3707 case MONO_TYPE_CHAR:
3716 mono_mb_emit_byte (mb, CEE_LDIND_I);
3717 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3719 case MONO_TYPE_STRING:
3720 case MONO_TYPE_CLASS:
3721 case MONO_TYPE_ARRAY:
3723 case MONO_TYPE_SZARRAY:
3724 case MONO_TYPE_OBJECT:
3725 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3727 case MONO_TYPE_GENERICINST:
3728 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3729 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3734 case MONO_TYPE_VALUETYPE:
3735 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3736 type = mono_class_enum_basetype (t->data.klass)->type;
3739 mono_mb_emit_byte (mb, CEE_LDIND_I);
3740 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3741 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3742 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3743 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3745 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3749 g_assert_not_reached ();
3754 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3755 } else if (need_direct_wrapper) {
3756 mono_mb_emit_op (mb, CEE_CALL, method);
3758 mono_mb_emit_ldarg (mb, 3);
3759 mono_mb_emit_calli (mb, callsig);
3762 if (sig->ret->byref) {
3764 g_assert_not_reached ();
3767 switch (sig->ret->type) {
3768 case MONO_TYPE_VOID:
3772 case MONO_TYPE_BOOLEAN:
3773 case MONO_TYPE_CHAR:
3786 case MONO_TYPE_VALUETYPE:
3787 case MONO_TYPE_TYPEDBYREF:
3788 case MONO_TYPE_GENERICINST:
3789 /* box value types */
3790 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3792 case MONO_TYPE_STRING:
3793 case MONO_TYPE_CLASS:
3794 case MONO_TYPE_ARRAY:
3795 case MONO_TYPE_SZARRAY:
3796 case MONO_TYPE_OBJECT:
3800 /* The result is an IntPtr */
3801 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3804 g_assert_not_reached ();
3808 mono_mb_emit_stloc (mb, loc_res);
3810 /* Convert back nullable-byref arguments */
3811 for (i = 0; i < sig->param_count; i++) {
3812 MonoType *t = sig->params [i];
3815 * Box the result and put it back into the array, the caller will have
3816 * to obtain it from there.
3818 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3819 mono_mb_emit_ldarg (mb, 1);
3820 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3821 mono_mb_emit_byte (mb, CEE_ADD);
3823 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3824 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3826 mono_mb_emit_byte (mb, CEE_STIND_REF);
3830 g_free (tmp_nullable_locals);
3834 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3835 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3836 gboolean virtual_, gboolean need_direct_wrapper)
3839 MonoExceptionClause *clause;
3840 int loc_res, loc_exc;
3842 /* The wrapper looks like this:
3848 * } catch (Exception e) {
3856 /* allocate local 0 (object) tmp */
3857 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3858 /* allocate local 1 (object) exc */
3859 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3861 /* *exc is assumed to be initialized to NULL by the caller */
3863 mono_mb_emit_byte (mb, CEE_LDARG_2);
3864 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3869 labels [1] = mono_mb_get_label (mb);
3870 emit_thread_force_interrupt_checkpoint (mb);
3871 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3873 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3875 /* Add a try clause around the call */
3876 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3877 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3878 clause->data.catch_class = mono_defaults.exception_class;
3879 clause->try_offset = labels [1];
3880 clause->try_len = mono_mb_get_label (mb) - labels [1];
3882 clause->handler_offset = mono_mb_get_label (mb);
3885 mono_mb_emit_stloc (mb, loc_exc);
3886 mono_mb_emit_byte (mb, CEE_LDARG_2);
3887 mono_mb_emit_ldloc (mb, loc_exc);
3888 mono_mb_emit_byte (mb, CEE_STIND_REF);
3890 mono_mb_emit_branch (mb, CEE_LEAVE);
3892 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3894 mono_mb_set_clauses (mb, 1, clause);
3896 mono_mb_patch_branch (mb, labels [2]);
3897 mono_mb_emit_ldloc (mb, loc_res);
3898 mono_mb_emit_byte (mb, CEE_RET);
3903 mono_mb_patch_branch (mb, labels [0]);
3904 emit_thread_force_interrupt_checkpoint (mb);
3905 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3907 mono_mb_emit_ldloc (mb, 0);
3908 mono_mb_emit_byte (mb, CEE_RET);
3913 * generates IL code for the runtime invoke function
3914 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3916 * we also catch exceptions if exc != null
3917 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3918 * it means that the compiled code for METHOD does not have to be looked up
3919 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3920 * its METHOD argument.
3923 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3925 MonoMethodSignature *sig, *csig, *callsig;
3926 MonoMethodBuilder *mb;
3927 GHashTable *cache = NULL;
3928 MonoClass *target_klass;
3929 MonoMethod *res = NULL;
3930 static MonoMethodSignature *cctor_signature = NULL;
3931 static MonoMethodSignature *finalize_signature = NULL;
3933 const char *param_names [16];
3934 gboolean need_direct_wrapper = FALSE;
3939 if (!cctor_signature) {
3940 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3941 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3943 if (!finalize_signature) {
3944 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3945 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3946 finalize_signature->hasthis = 1;
3950 need_direct_wrapper = TRUE;
3953 * Use a separate cache indexed by methods to speed things up and to avoid the
3954 * boundless mempool growth caused by the signature_dup stuff below.
3957 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3959 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3961 res = mono_marshal_find_in_cache (cache, method);
3965 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3966 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3968 * Array Get/Set/Address methods. The JIT implements them using inline code
3969 * so we need to create an invoke wrapper which calls the method directly.
3971 need_direct_wrapper = TRUE;
3974 if (method->string_ctor) {
3975 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3977 callsig = add_string_ctor_signature (method);
3978 /* Can't share this as we push a string as this */
3979 need_direct_wrapper = TRUE;
3981 if (method_is_dynamic (method))
3982 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3984 callsig = mono_method_signature (method);
3987 sig = mono_method_signature (method);
3989 target_klass = get_wrapper_target_class (method->klass->image);
3991 /* Try to share wrappers for non-corlib methods with simple signatures */
3992 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3993 callsig = cctor_signature;
3994 target_klass = mono_defaults.object_class;
3995 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3996 callsig = finalize_signature;
3997 target_klass = mono_defaults.object_class;
4000 if (need_direct_wrapper) {
4001 /* Already searched at the start */
4003 MonoMethodSignature *tmp_sig;
4005 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4006 GHashTable **cache_table = NULL;
4008 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4009 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4011 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4013 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4014 (GCompareFunc)runtime_invoke_signature_equal);
4016 /* from mono_marshal_find_in_cache */
4017 mono_marshal_lock ();
4018 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4019 mono_marshal_unlock ();
4026 /* Make a copy of the signature from the image mempool */
4028 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4032 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4034 csig->ret = &mono_defaults.object_class->byval_arg;
4035 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4036 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4038 csig->params [0] = &mono_defaults.object_class->byval_arg;
4039 csig->params [1] = &mono_defaults.int_class->byval_arg;
4040 csig->params [2] = &mono_defaults.int_class->byval_arg;
4041 csig->params [3] = &mono_defaults.int_class->byval_arg;
4044 /* This is called from runtime code so it has to be cdecl */
4045 csig->call_convention = MONO_CALL_C;
4048 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4049 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4053 param_names [0] = "this";
4054 param_names [1] = "params";
4055 param_names [2] = "exc";
4056 param_names [3] = "method";
4057 mono_mb_set_param_names (mb, param_names);
4059 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4062 if (need_direct_wrapper) {
4064 mb->skip_visibility = 1;
4066 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4067 info->d.runtime_invoke.method = method;
4068 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4070 /* taken from mono_mb_create_and_cache */
4071 mono_marshal_lock ();
4072 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4073 mono_marshal_unlock ();
4075 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4076 info->d.runtime_invoke.sig = callsig;
4078 /* Somebody may have created it before us */
4081 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4083 mono_marshal_lock ();
4084 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4086 GHashTable *direct_cache;
4088 g_hash_table_insert (cache, callsig, res);
4089 /* Can't insert it into wrapper_hash since the key is a signature */
4090 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4092 g_hash_table_insert (direct_cache, method, res);
4094 mono_free_method (newm);
4096 mono_marshal_unlock ();
4099 /* end mono_mb_create_and_cache */
4108 * mono_marshal_get_runtime_invoke_dynamic:
4110 * Return a method which can be used to invoke managed methods from native code
4112 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4113 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4114 * ARGS should point to an architecture specific structure containing
4115 * the arguments and space for the return value.
4116 * The other arguments are the same as for runtime_invoke (), except that
4117 * ARGS should contain the this argument too.
4118 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4119 * is only one copy of it, which is useful in full-aot.
4120 * The wrapper info for the wrapper is a WrapperInfo structure.
4123 mono_marshal_get_runtime_invoke_dynamic (void)
4125 static MonoMethod *method;
4126 MonoMethodSignature *csig;
4127 MonoExceptionClause *clause;
4128 MonoMethodBuilder *mb;
4136 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4138 csig->ret = &mono_defaults.void_class->byval_arg;
4139 csig->params [0] = &mono_defaults.int_class->byval_arg;
4140 csig->params [1] = &mono_defaults.int_class->byval_arg;
4141 csig->params [2] = &mono_defaults.int_class->byval_arg;
4142 csig->params [3] = &mono_defaults.int_class->byval_arg;
4144 name = g_strdup ("runtime_invoke_dynamic");
4145 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4149 /* allocate local 0 (object) tmp */
4150 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4151 /* allocate local 1 (object) exc */
4152 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4154 /* cond set *exc to null */
4155 mono_mb_emit_byte (mb, CEE_LDARG_1);
4156 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4157 mono_mb_emit_byte (mb, 3);
4158 mono_mb_emit_byte (mb, CEE_LDARG_1);
4159 mono_mb_emit_byte (mb, CEE_LDNULL);
4160 mono_mb_emit_byte (mb, CEE_STIND_REF);
4162 emit_thread_force_interrupt_checkpoint (mb);
4164 mono_mb_emit_byte (mb, CEE_LDARG_0);
4165 mono_mb_emit_byte (mb, CEE_LDARG_2);
4166 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4167 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4169 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4171 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4172 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4173 clause->try_len = mono_mb_get_label (mb);
4176 clause->data.filter_offset = mono_mb_get_label (mb);
4178 mono_mb_emit_byte (mb, CEE_POP);
4179 mono_mb_emit_byte (mb, CEE_LDARG_1);
4180 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4181 mono_mb_emit_byte (mb, CEE_PREFIX1);
4182 mono_mb_emit_byte (mb, CEE_CGT_UN);
4183 mono_mb_emit_byte (mb, CEE_PREFIX1);
4184 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4186 clause->handler_offset = mono_mb_get_label (mb);
4189 /* store exception */
4190 mono_mb_emit_stloc (mb, 1);
4192 mono_mb_emit_byte (mb, CEE_LDARG_1);
4193 mono_mb_emit_ldloc (mb, 1);
4194 mono_mb_emit_byte (mb, CEE_STIND_REF);
4196 mono_mb_emit_byte (mb, CEE_LDNULL);
4197 mono_mb_emit_stloc (mb, 0);
4199 /* Check for the abort exception */
4200 mono_mb_emit_ldloc (mb, 1);
4201 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4202 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4204 /* Delay the abort exception */
4205 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4207 mono_mb_patch_short_branch (mb, posna);
4208 mono_mb_emit_branch (mb, CEE_LEAVE);
4210 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4212 mono_mb_set_clauses (mb, 1, clause);
4215 mono_mb_patch_branch (mb, pos);
4216 //mono_mb_emit_ldloc (mb, 0);
4217 mono_mb_emit_byte (mb, CEE_RET);
4218 #endif /* DISABLE_JIT */
4220 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4222 mono_marshal_lock ();
4223 /* double-checked locking */
4225 method = mono_mb_create (mb, csig, 16, info);
4227 mono_marshal_unlock ();
4235 * mono_marshal_get_runtime_invoke_for_sig:
4237 * Return a runtime invoke wrapper for a given signature.
4240 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4242 MonoMethodSignature *csig, *callsig;
4243 MonoMethodBuilder *mb;
4245 GHashTable *cache = NULL;
4246 GHashTable **cache_table = NULL;
4247 MonoMethod *res = NULL;
4249 const char *param_names [16];
4252 /* A simplified version of mono_marshal_get_runtime_invoke */
4254 image = mono_defaults.corlib;
4256 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4258 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4260 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4261 (GCompareFunc)runtime_invoke_signature_equal);
4263 /* from mono_marshal_find_in_cache */
4264 mono_marshal_lock ();
4265 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4266 mono_marshal_unlock ();
4273 /* Make a copy of the signature from the image mempool */
4274 callsig = mono_metadata_signature_dup_full (image, callsig);
4276 csig = mono_metadata_signature_alloc (image, 4);
4277 csig->ret = &mono_defaults.object_class->byval_arg;
4278 csig->params [0] = &mono_defaults.object_class->byval_arg;
4279 csig->params [1] = &mono_defaults.int_class->byval_arg;
4280 csig->params [2] = &mono_defaults.int_class->byval_arg;
4281 csig->params [3] = &mono_defaults.int_class->byval_arg;
4284 /* This is called from runtime code so it has to be cdecl */
4285 csig->call_convention = MONO_CALL_C;
4288 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4289 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4293 param_names [0] = "this";
4294 param_names [1] = "params";
4295 param_names [2] = "exc";
4296 param_names [3] = "method";
4297 mono_mb_set_param_names (mb, param_names);
4299 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4302 /* taken from mono_mb_create_and_cache */
4303 mono_marshal_lock ();
4304 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4305 mono_marshal_unlock ();
4307 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4308 info->d.runtime_invoke.sig = callsig;
4310 /* Somebody may have created it before us */
4313 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4315 mono_marshal_lock ();
4316 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4319 g_hash_table_insert (cache, callsig, res);
4321 mono_free_method (newm);
4323 mono_marshal_unlock ();
4326 /* end mono_mb_create_and_cache */
4335 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4337 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4338 klass->name_space, klass->name);
4340 mono_mb_emit_exception_marshal_directive (mb, msg);
4345 * generates IL code for the icall wrapper (the generated method
4346 * calls the unmanaged code in func)
4347 * The wrapper info for the wrapper is a WrapperInfo structure.
4350 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4352 MonoMethodSignature *csig, *csig2;
4353 MonoMethodBuilder *mb;
4358 g_assert (sig->pinvoke);
4360 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4362 mb->method->save_lmf = 1;
4364 /* Add an explicit this argument */
4366 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4368 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4372 mono_mb_emit_byte (mb, CEE_LDARG_0);
4374 for (i = 0; i < sig->param_count; i++)
4375 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4378 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4379 mono_mb_emit_calli (mb, csig2);
4380 if (check_exceptions)
4381 emit_thread_interrupt_checkpoint (mb);
4382 mono_mb_emit_byte (mb, CEE_RET);
4385 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4387 if (csig->call_convention == MONO_CALL_VARARG)
4388 csig->call_convention = 0;
4390 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4391 info->d.icall.func = (gpointer)func;
4392 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4399 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4400 MonoMarshalSpec *spec,
4401 int conv_arg, MonoType **conv_arg_type,
4402 MarshalAction action)
4405 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4406 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4411 static MonoClass *ICustomMarshaler = NULL;
4412 static MonoMethod *cleanup_native, *cleanup_managed;
4413 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4414 MonoMethod *get_instance = NULL;
4415 MonoMethodBuilder *mb = m->mb;
4416 char *exception_msg = NULL;
4420 if (!ICustomMarshaler) {
4421 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4423 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4424 goto handle_exception;
4427 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4428 g_assert (cleanup_native);
4429 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4430 g_assert (cleanup_managed);
4431 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4432 g_assert (marshal_managed_to_native);
4433 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4434 g_assert (marshal_native_to_managed);
4436 mono_memory_barrier ();
4437 ICustomMarshaler = klass;
4440 if (spec->data.custom_data.image)
4441 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4443 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4444 g_assert (mtype != NULL);
4445 mklass = mono_class_from_mono_type (mtype);
4446 g_assert (mklass != NULL);
4448 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4449 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4451 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4453 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4454 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4455 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4456 (get_sig->params [0]->type != MONO_TYPE_STRING))
4457 get_instance = NULL;
4461 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);
4464 /* Throw exception and emit compensation code if neccesary */
4465 if (exception_msg) {
4467 case MARSHAL_ACTION_CONV_IN:
4468 case MARSHAL_ACTION_CONV_RESULT:
4469 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4470 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4471 mono_mb_emit_byte (mb, CEE_POP);
4473 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4474 g_free (exception_msg);
4477 case MARSHAL_ACTION_PUSH:
4478 mono_mb_emit_byte (mb, CEE_LDNULL);
4486 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4487 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4490 case MARSHAL_ACTION_CONV_IN:
4492 case MONO_TYPE_CLASS:
4493 case MONO_TYPE_OBJECT:
4494 case MONO_TYPE_STRING:
4495 case MONO_TYPE_ARRAY:
4496 case MONO_TYPE_SZARRAY:
4497 case MONO_TYPE_VALUETYPE:
4501 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4502 g_assert_not_reached ();
4506 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4508 mono_mb_emit_byte (mb, CEE_LDNULL);
4509 mono_mb_emit_stloc (mb, conv_arg);
4511 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4514 /* Minic MS.NET behavior */
4515 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4518 /* Check for null */
4519 mono_mb_emit_ldarg (mb, argnum);
4521 mono_mb_emit_byte (mb, CEE_LDIND_I);
4522 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4524 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4526 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4528 mono_mb_emit_ldarg (mb, argnum);
4530 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4532 if (t->type == MONO_TYPE_VALUETYPE) {
4534 * Since we can't determine the type of the argument, we
4535 * will assume the unmanaged function takes a pointer.
4537 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4539 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4542 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4543 mono_mb_emit_stloc (mb, conv_arg);
4545 mono_mb_patch_branch (mb, pos2);
4548 case MARSHAL_ACTION_CONV_OUT:
4549 /* Check for null */
4550 mono_mb_emit_ldloc (mb, conv_arg);
4551 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4554 mono_mb_emit_ldarg (mb, argnum);
4556 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4558 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4560 mono_mb_emit_ldloc (mb, conv_arg);
4561 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4562 mono_mb_emit_byte (mb, CEE_STIND_REF);
4563 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4564 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4566 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4568 mono_mb_emit_ldloc (mb, conv_arg);
4569 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4571 /* We have nowhere to store the result */
4572 mono_mb_emit_byte (mb, CEE_POP);
4575 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4577 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4579 mono_mb_emit_ldloc (mb, conv_arg);
4581 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4583 mono_mb_patch_branch (mb, pos2);
4586 case MARSHAL_ACTION_PUSH:
4588 mono_mb_emit_ldloc_addr (mb, conv_arg);
4590 mono_mb_emit_ldloc (mb, conv_arg);
4593 case MARSHAL_ACTION_CONV_RESULT:
4594 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4596 mono_mb_emit_stloc (mb, 3);
4598 mono_mb_emit_ldloc (mb, 3);
4599 mono_mb_emit_stloc (mb, loc1);
4601 /* Check for null */
4602 mono_mb_emit_ldloc (mb, 3);
4603 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4605 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4607 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4608 mono_mb_emit_byte (mb, CEE_DUP);
4610 mono_mb_emit_ldloc (mb, 3);
4611 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4612 mono_mb_emit_stloc (mb, 3);
4614 mono_mb_emit_ldloc (mb, loc1);
4615 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4617 mono_mb_patch_branch (mb, pos2);
4620 case MARSHAL_ACTION_MANAGED_CONV_IN:
4621 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4623 mono_mb_emit_byte (mb, CEE_LDNULL);
4624 mono_mb_emit_stloc (mb, conv_arg);
4626 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4629 /* Check for null */
4630 mono_mb_emit_ldarg (mb, argnum);
4632 mono_mb_emit_byte (mb, CEE_LDIND_I);
4633 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4635 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4636 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4638 mono_mb_emit_ldarg (mb, argnum);
4640 mono_mb_emit_byte (mb, CEE_LDIND_I);
4642 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4643 mono_mb_emit_stloc (mb, conv_arg);
4645 mono_mb_patch_branch (mb, pos2);
4648 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4649 g_assert (!t->byref);
4651 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4653 mono_mb_emit_stloc (mb, 3);
4655 mono_mb_emit_ldloc (mb, 3);
4656 mono_mb_emit_stloc (mb, loc1);
4658 /* Check for null */
4659 mono_mb_emit_ldloc (mb, 3);
4660 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4662 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4663 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4664 mono_mb_emit_byte (mb, CEE_DUP);
4666 mono_mb_emit_ldloc (mb, 3);
4667 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4668 mono_mb_emit_stloc (mb, 3);
4670 mono_mb_emit_ldloc (mb, loc1);
4671 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4673 mono_mb_patch_branch (mb, pos2);
4676 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4678 /* Check for null */
4679 mono_mb_emit_ldloc (mb, conv_arg);
4680 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4683 mono_mb_emit_ldarg (mb, argnum);
4685 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4687 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4689 mono_mb_emit_ldloc (mb, conv_arg);
4690 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4691 mono_mb_emit_byte (mb, CEE_STIND_I);
4694 /* Call CleanUpManagedData */
4695 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4697 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4699 mono_mb_emit_ldloc (mb, conv_arg);
4700 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4702 mono_mb_patch_branch (mb, pos2);
4706 g_assert_not_reached ();
4714 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4715 MonoMarshalSpec *spec,
4716 int conv_arg, MonoType **conv_arg_type,
4717 MarshalAction action)
4720 MonoMethodBuilder *mb = m->mb;
4723 case MARSHAL_ACTION_CONV_IN: {
4724 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4726 g_assert (t->type == MONO_TYPE_OBJECT);
4727 g_assert (!t->byref);
4729 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4730 mono_mb_emit_ldarg (mb, argnum);
4731 mono_mb_emit_icon (mb, encoding);
4732 mono_mb_emit_icon (mb, t->attrs);
4733 mono_mb_emit_icall (mb, mono_marshal_asany);
4734 mono_mb_emit_stloc (mb, conv_arg);
4738 case MARSHAL_ACTION_PUSH:
4739 mono_mb_emit_ldloc (mb, conv_arg);
4742 case MARSHAL_ACTION_CONV_OUT: {
4743 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4745 mono_mb_emit_ldarg (mb, argnum);
4746 mono_mb_emit_ldloc (mb, conv_arg);
4747 mono_mb_emit_icon (mb, encoding);
4748 mono_mb_emit_icon (mb, t->attrs);
4749 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4754 g_assert_not_reached ();
4761 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4762 MonoMarshalSpec *spec,
4763 int conv_arg, MonoType **conv_arg_type,
4764 MarshalAction action)
4767 MonoMethodBuilder *mb = m->mb;
4768 MonoClass *klass, *date_time_class;
4771 klass = mono_class_from_mono_type (t);
4773 date_time_class = mono_class_get_date_time_class ();
4776 case MARSHAL_ACTION_CONV_IN:
4777 if (klass == date_time_class) {
4778 /* Convert it to an OLE DATE type */
4779 static MonoMethod *to_oadate;
4782 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4783 g_assert (to_oadate);
4785 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4788 mono_mb_emit_ldarg (mb, argnum);
4789 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4792 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4794 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4796 mono_mb_emit_ldarg_addr (mb, argnum);
4797 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4798 mono_mb_emit_stloc (mb, conv_arg);
4802 mono_mb_patch_branch (mb, pos);
4806 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4807 klass->blittable || klass->enumtype)
4810 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4812 /* store the address of the source into local variable 0 */
4814 mono_mb_emit_ldarg (mb, argnum);
4816 mono_mb_emit_ldarg_addr (mb, argnum);
4818 mono_mb_emit_stloc (mb, 0);
4820 /* allocate space for the native struct and
4821 * store the address into local variable 1 (dest) */
4822 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4823 mono_mb_emit_byte (mb, CEE_PREFIX1);
4824 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4825 mono_mb_emit_stloc (mb, conv_arg);
4828 mono_mb_emit_ldloc (mb, 0);
4829 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4832 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4834 mono_mb_emit_ldloc (mb, conv_arg);
4835 mono_mb_emit_stloc (mb, 1);
4837 /* emit valuetype conversion code */
4838 emit_struct_conv (mb, klass, FALSE);
4842 mono_mb_patch_branch (mb, pos);
4845 case MARSHAL_ACTION_PUSH:
4846 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4848 g_assert (!t->byref);
4850 /* Have to change the signature since the vtype is passed byref */
4851 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4853 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4854 klass->blittable || klass->enumtype)
4855 mono_mb_emit_ldarg_addr (mb, argnum);
4857 mono_mb_emit_ldloc (mb, conv_arg);
4861 if (klass == date_time_class) {
4863 mono_mb_emit_ldloc_addr (mb, conv_arg);
4865 mono_mb_emit_ldloc (mb, conv_arg);
4869 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4870 klass->blittable || klass->enumtype) {
4871 mono_mb_emit_ldarg (mb, argnum);
4874 mono_mb_emit_ldloc (mb, conv_arg);
4876 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4877 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4881 case MARSHAL_ACTION_CONV_OUT:
4882 if (klass == date_time_class) {
4883 /* Convert from an OLE DATE type */
4884 static MonoMethod *from_oadate;
4889 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4891 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4892 g_assert (from_oadate);
4894 mono_mb_emit_ldarg (mb, argnum);
4895 mono_mb_emit_ldloc (mb, conv_arg);
4896 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4897 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4902 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4903 klass->blittable || klass->enumtype)
4907 /* dst = argument */
4908 mono_mb_emit_ldarg (mb, argnum);
4909 mono_mb_emit_stloc (mb, 1);
4911 mono_mb_emit_ldloc (mb, 1);
4912 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4914 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4915 /* src = tmp_locals [i] */
4916 mono_mb_emit_ldloc (mb, conv_arg);
4917 mono_mb_emit_stloc (mb, 0);
4919 /* emit valuetype conversion code */
4920 emit_struct_conv (mb, klass, TRUE);
4924 emit_struct_free (mb, klass, conv_arg);
4927 mono_mb_patch_branch (mb, pos);
4930 case MARSHAL_ACTION_CONV_RESULT:
4931 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4933 mono_mb_emit_stloc (mb, 3);
4937 /* load pointer to returned value type */
4938 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4939 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4940 /* store the address of the source into local variable 0 */
4941 mono_mb_emit_stloc (mb, 0);
4943 mono_mb_emit_ldloc_addr (mb, 3);
4944 mono_mb_emit_stloc (mb, 1);
4946 /* emit valuetype conversion code */
4947 emit_struct_conv (mb, klass, TRUE);
4950 case MARSHAL_ACTION_MANAGED_CONV_IN:
4951 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4952 klass->blittable || klass->enumtype) {
4957 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4959 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4963 mono_mb_emit_ldarg (mb, argnum);
4965 mono_mb_emit_ldarg_addr (mb, argnum);
4966 mono_mb_emit_stloc (mb, 0);
4969 mono_mb_emit_ldloc (mb, 0);
4970 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4973 mono_mb_emit_ldloc_addr (mb, conv_arg);
4974 mono_mb_emit_stloc (mb, 1);
4976 /* emit valuetype conversion code */
4977 emit_struct_conv (mb, klass, TRUE);
4980 mono_mb_patch_branch (mb, pos);
4983 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4984 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4985 klass->blittable || klass->enumtype) {
4989 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4992 /* Check for null */
4993 mono_mb_emit_ldarg (mb, argnum);
4994 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4997 mono_mb_emit_ldloc_addr (mb, conv_arg);
4998 mono_mb_emit_stloc (mb, 0);
5001 mono_mb_emit_ldarg (mb, argnum);
5002 mono_mb_emit_stloc (mb, 1);
5004 /* emit valuetype conversion code */
5005 emit_struct_conv (mb, klass, FALSE);
5007 mono_mb_patch_branch (mb, pos2);
5010 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5011 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5012 klass->blittable || klass->enumtype) {
5013 mono_mb_emit_stloc (mb, 3);
5018 /* load pointer to returned value type */
5019 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5020 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5022 /* store the address of the source into local variable 0 */
5023 mono_mb_emit_stloc (mb, 0);
5024 /* allocate space for the native struct and
5025 * store the address into dst_ptr */
5026 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5027 m->retobj_class = klass;
5028 g_assert (m->retobj_var);
5029 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5030 mono_mb_emit_byte (mb, CEE_CONV_I);
5031 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5032 mono_mb_emit_stloc (mb, 1);
5033 mono_mb_emit_ldloc (mb, 1);
5034 mono_mb_emit_stloc (mb, m->retobj_var);
5036 /* emit valuetype conversion code */
5037 emit_struct_conv (mb, klass, FALSE);
5041 g_assert_not_reached ();
5048 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5049 MonoMarshalSpec *spec,
5050 int conv_arg, MonoType **conv_arg_type,
5051 MarshalAction action)
5055 case MARSHAL_ACTION_CONV_IN:
5056 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5058 case MARSHAL_ACTION_MANAGED_CONV_IN:
5059 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5063 MonoMethodBuilder *mb = m->mb;
5064 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5065 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5069 case MARSHAL_ACTION_CONV_IN:
5070 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5071 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5074 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5077 mono_mb_emit_ldarg (mb, argnum);
5078 mono_mb_emit_byte (mb, CEE_LDIND_I);
5080 mono_mb_emit_ldarg (mb, argnum);
5084 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5085 mono_mb_emit_exception_marshal_directive (mb, msg);
5087 mono_mb_emit_icall (mb, conv_to_icall (conv));
5089 mono_mb_emit_stloc (mb, conv_arg);
5093 case MARSHAL_ACTION_CONV_OUT:
5094 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5096 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5097 mono_mb_emit_exception_marshal_directive (mb, msg);
5101 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5102 static MonoMethod *m;
5105 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5110 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5111 mono_mb_emit_exception_marshal_directive (mb, msg);
5116 * Have to allocate a new string with the same length as the original, and
5117 * copy the contents of the buffer pointed to by CONV_ARG into it.
5119 g_assert (t->byref);
5120 mono_mb_emit_ldarg (mb, argnum);
5121 mono_mb_emit_ldloc (mb, conv_arg);
5122 mono_mb_emit_ldarg (mb, argnum);
5123 mono_mb_emit_byte (mb, CEE_LDIND_I);
5124 mono_mb_emit_managed_call (mb, m, NULL);
5125 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5126 mono_mb_emit_byte (mb, CEE_STIND_REF);
5127 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5128 mono_mb_emit_ldarg (mb, argnum);
5129 mono_mb_emit_ldloc (mb, conv_arg);
5130 mono_mb_emit_icall (mb, conv_to_icall (conv));
5131 mono_mb_emit_byte (mb, CEE_STIND_REF);
5136 mono_mb_emit_ldloc (mb, conv_arg);
5137 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5138 mono_mb_emit_icall (mb, mono_free_bstr);
5140 mono_mb_emit_icall (mb, mono_marshal_free);
5144 case MARSHAL_ACTION_PUSH:
5145 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5146 mono_mb_emit_ldloc_addr (mb, conv_arg);
5148 mono_mb_emit_ldloc (mb, conv_arg);
5151 case MARSHAL_ACTION_CONV_RESULT:
5152 mono_mb_emit_stloc (mb, 0);
5154 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5156 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5157 mono_mb_emit_exception_marshal_directive (mb, msg);
5161 mono_mb_emit_ldloc (mb, 0);
5162 mono_mb_emit_icall (mb, conv_to_icall (conv));
5163 mono_mb_emit_stloc (mb, 3);
5165 /* free the string */
5166 mono_mb_emit_ldloc (mb, 0);
5167 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5168 mono_mb_emit_icall (mb, mono_free_bstr);
5170 mono_mb_emit_icall (mb, mono_marshal_free);
5173 case MARSHAL_ACTION_MANAGED_CONV_IN:
5174 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5176 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5179 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5183 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5185 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5186 mono_mb_emit_exception_marshal_directive (mb, msg);
5190 mono_mb_emit_ldarg (mb, argnum);
5192 mono_mb_emit_byte (mb, CEE_LDIND_I);
5193 mono_mb_emit_icall (mb, conv_to_icall (conv));
5194 mono_mb_emit_stloc (mb, conv_arg);
5197 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5200 mono_mb_emit_ldarg (mb, argnum);
5201 mono_mb_emit_ldloc (mb, conv_arg);
5202 mono_mb_emit_icall (mb, conv_to_icall (conv));
5203 mono_mb_emit_byte (mb, CEE_STIND_I);
5208 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5209 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5210 /* We need to make a copy so the caller is able to free it */
5211 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5213 mono_mb_emit_icall (mb, conv_to_icall (conv));
5214 mono_mb_emit_stloc (mb, 3);
5218 g_assert_not_reached ();
5226 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5227 MonoMarshalSpec *spec, int conv_arg,
5228 MonoType **conv_arg_type, MarshalAction action)
5231 if (action == MARSHAL_ACTION_CONV_IN)
5232 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5234 MonoMethodBuilder *mb = m->mb;
5237 case MARSHAL_ACTION_CONV_IN: {
5238 MonoType *intptr_type;
5239 int dar_release_slot, pos;
5241 intptr_type = &mono_defaults.int_class->byval_arg;
5242 conv_arg = mono_mb_add_local (mb, intptr_type);
5243 *conv_arg_type = intptr_type;
5245 if (!sh_dangerous_add_ref)
5246 init_safe_handle ();
5248 mono_mb_emit_ldarg (mb, argnum);
5249 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5250 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5252 mono_mb_patch_branch (mb, pos);
5255 * My tests in show that ref SafeHandles are not really
5256 * passed as ref objects. Instead a NULL is passed as the
5259 mono_mb_emit_icon (mb, 0);
5260 mono_mb_emit_stloc (mb, conv_arg);
5264 /* Create local to hold the ref parameter to DangerousAddRef */
5265 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5267 /* set release = false; */
5268 mono_mb_emit_icon (mb, 0);
5269 mono_mb_emit_stloc (mb, dar_release_slot);
5271 /* safehandle.DangerousAddRef (ref release) */
5272 mono_mb_emit_ldarg (mb, argnum);
5273 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5274 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5276 /* Pull the handle field from SafeHandle */
5277 mono_mb_emit_ldarg (mb, argnum);
5278 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5279 mono_mb_emit_byte (mb, CEE_LDIND_I);
5280 mono_mb_emit_stloc (mb, conv_arg);
5285 case MARSHAL_ACTION_PUSH:
5287 mono_mb_emit_ldloc_addr (mb, conv_arg);
5289 mono_mb_emit_ldloc (mb, conv_arg);
5292 case MARSHAL_ACTION_CONV_OUT: {
5293 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5294 int dar_release_slot = conv_arg + 1;
5297 if (!sh_dangerous_release)
5298 init_safe_handle ();
5304 * My tests indicate that ref SafeHandles parameters are not actually
5305 * passed by ref, but instead a new Handle is created regardless of
5306 * whether a change happens in the unmanaged side.
5308 * Also, the Handle is created before calling into unmanaged code,
5309 * but we do not support that mechanism (getting to the original
5310 * handle) and it makes no difference where we create this
5312 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5314 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5317 /* refval = new SafeHandleDerived ()*/
5318 mono_mb_emit_ldarg (mb, argnum);
5319 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5320 mono_mb_emit_byte (mb, CEE_STIND_REF);
5322 /* refval.handle = returned_handle */
5323 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5325 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5326 mono_mb_emit_ldloc (mb, conv_arg);
5327 mono_mb_emit_byte (mb, CEE_STIND_I);
5329 mono_mb_emit_ldloc (mb, dar_release_slot);
5330 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5331 mono_mb_emit_ldarg (mb, argnum);
5332 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5333 mono_mb_patch_branch (mb, label_next);
5338 case MARSHAL_ACTION_CONV_RESULT: {
5339 MonoMethod *ctor = NULL;
5340 int intptr_handle_slot;
5342 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5343 mono_mb_emit_byte (mb, CEE_POP);
5344 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5348 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5350 mono_mb_emit_byte (mb, CEE_POP);
5351 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5354 /* Store the IntPtr results into a local */
5355 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5356 mono_mb_emit_stloc (mb, intptr_handle_slot);
5358 /* Create return value */
5359 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5360 mono_mb_emit_stloc (mb, 3);
5362 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5363 mono_mb_emit_ldloc (mb, 3);
5364 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5365 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5366 mono_mb_emit_byte (mb, CEE_STIND_I);
5370 case MARSHAL_ACTION_MANAGED_CONV_IN:
5371 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5374 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5375 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5378 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5379 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5382 printf ("Unhandled case for MarshalAction: %d\n", action);
5390 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5391 MonoMarshalSpec *spec, int conv_arg,
5392 MonoType **conv_arg_type, MarshalAction action)
5395 if (action == MARSHAL_ACTION_CONV_IN)
5396 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5398 MonoMethodBuilder *mb = m->mb;
5401 case MARSHAL_ACTION_CONV_IN: {
5402 MonoType *intptr_type;
5404 intptr_type = &mono_defaults.int_class->byval_arg;
5405 conv_arg = mono_mb_add_local (mb, intptr_type);
5406 *conv_arg_type = intptr_type;
5409 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5410 mono_mb_emit_exception_marshal_directive (mb, msg);
5413 mono_mb_emit_ldarg_addr (mb, argnum);
5414 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5415 mono_mb_emit_byte (mb, CEE_ADD);
5416 mono_mb_emit_byte (mb, CEE_LDIND_I);
5417 mono_mb_emit_stloc (mb, conv_arg);
5421 case MARSHAL_ACTION_PUSH:
5422 mono_mb_emit_ldloc (mb, conv_arg);
5425 case MARSHAL_ACTION_CONV_OUT: {
5426 /* no resource release required */
5430 case MARSHAL_ACTION_CONV_RESULT: {
5431 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5432 mono_mb_emit_exception_marshal_directive (mb, msg);
5436 case MARSHAL_ACTION_MANAGED_CONV_IN:
5437 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5440 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5441 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5444 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5445 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5448 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5456 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5457 MonoMarshalSpec *spec,
5458 int conv_arg, MonoType **conv_arg_type,
5459 MarshalAction action)
5462 if (action == MARSHAL_ACTION_CONV_IN)
5463 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5465 MonoMethodBuilder *mb = m->mb;
5466 MonoClass *klass = mono_class_from_mono_type (t);
5470 case MARSHAL_ACTION_CONV_IN:
5471 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5472 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5474 m->orig_conv_args [argnum] = 0;
5476 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5477 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5478 mono_mb_emit_exception_marshal_directive (mb, msg);
5482 if (klass->delegate) {
5484 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5485 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5486 mono_mb_emit_exception_marshal_directive (mb, msg);
5488 mono_mb_emit_byte (mb, CEE_LDNULL);
5489 mono_mb_emit_stloc (mb, conv_arg);
5491 mono_mb_emit_ldarg (mb, argnum);
5492 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5493 mono_mb_emit_stloc (mb, conv_arg);
5495 } else if (klass == mono_defaults.stringbuilder_class) {
5496 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5497 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5501 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5502 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5503 mono_mb_emit_exception_marshal_directive (mb, msg);
5509 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5513 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5514 mono_mb_emit_exception_marshal_directive (mb, msg);
5518 mono_mb_emit_ldarg (mb, argnum);
5520 mono_mb_emit_byte (mb, CEE_LDIND_I);
5522 mono_mb_emit_icall (mb, conv_to_icall (conv));
5523 mono_mb_emit_stloc (mb, conv_arg);
5524 } else if (klass->blittable) {
5525 mono_mb_emit_byte (mb, CEE_LDNULL);
5526 mono_mb_emit_stloc (mb, conv_arg);
5528 mono_mb_emit_ldarg (mb, argnum);
5529 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5531 mono_mb_emit_ldarg (mb, argnum);
5532 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5533 mono_mb_emit_stloc (mb, conv_arg);
5535 mono_mb_patch_branch (mb, pos);
5538 mono_mb_emit_byte (mb, CEE_LDNULL);
5539 mono_mb_emit_stloc (mb, conv_arg);
5542 /* we dont need any conversions for out parameters */
5543 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_byte (mb, CEE_LDIND_I);
5550 mono_mb_emit_ldarg (mb, argnum);
5551 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5552 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5555 /* store the address of the source into local variable 0 */
5556 mono_mb_emit_stloc (mb, 0);
5557 mono_mb_emit_ldloc (mb, 0);
5558 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5560 /* allocate space for the native struct and store the address */
5561 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5562 mono_mb_emit_byte (mb, CEE_PREFIX1);
5563 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5564 mono_mb_emit_stloc (mb, conv_arg);
5567 /* Need to store the original buffer so we can free it later */
5568 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5569 mono_mb_emit_ldloc (mb, conv_arg);
5570 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5573 /* set the src_ptr */
5574 mono_mb_emit_ldloc (mb, 0);
5575 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5576 mono_mb_emit_stloc (mb, 0);
5579 mono_mb_emit_ldloc (mb, conv_arg);
5580 mono_mb_emit_stloc (mb, 1);
5582 /* emit valuetype conversion code */
5583 emit_struct_conv (mb, klass, FALSE);
5585 mono_mb_patch_branch (mb, pos);
5589 case MARSHAL_ACTION_CONV_OUT:
5590 if (klass == mono_defaults.stringbuilder_class) {
5592 MonoMarshalNative encoding;
5593 MonoMarshalConv conv;
5595 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5596 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5598 g_assert (encoding != -1);
5601 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5605 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_ldloc (mb, conv_arg);
5609 case MONO_NATIVE_LPWSTR:
5610 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5612 case MONO_NATIVE_LPSTR:
5613 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5616 g_assert_not_reached ();
5619 mono_mb_emit_byte (mb, CEE_STIND_REF);
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_ldloc (mb, conv_arg);
5624 mono_mb_emit_icall (mb, conv_to_icall (conv));
5628 mono_mb_emit_ldloc (mb, conv_arg);
5629 mono_mb_emit_icall (mb, mono_marshal_free);
5634 if (klass->delegate) {
5636 mono_mb_emit_ldarg (mb, argnum);
5637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5638 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5639 mono_mb_emit_ldloc (mb, conv_arg);
5640 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5641 mono_mb_emit_byte (mb, CEE_STIND_REF);
5646 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5647 /* allocate a new object */
5648 mono_mb_emit_ldarg (mb, argnum);
5649 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5650 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5651 mono_mb_emit_byte (mb, CEE_STIND_REF);
5654 /* dst = *argument */
5655 mono_mb_emit_ldarg (mb, argnum);
5658 mono_mb_emit_byte (mb, CEE_LDIND_I);
5660 mono_mb_emit_stloc (mb, 1);
5662 mono_mb_emit_ldloc (mb, 1);
5663 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5665 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5666 mono_mb_emit_ldloc (mb, 1);
5667 mono_mb_emit_icon (mb, sizeof (MonoObject));
5668 mono_mb_emit_byte (mb, CEE_ADD);
5669 mono_mb_emit_stloc (mb, 1);
5671 /* src = tmp_locals [i] */
5672 mono_mb_emit_ldloc (mb, conv_arg);
5673 mono_mb_emit_stloc (mb, 0);
5675 /* emit valuetype conversion code */
5676 emit_struct_conv (mb, klass, TRUE);
5678 /* Free the structure returned by the native code */
5679 emit_struct_free (mb, klass, conv_arg);
5681 if (m->orig_conv_args [argnum]) {
5683 * If the native function changed the pointer, then free
5684 * the original structure plus the new pointer.
5686 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5687 mono_mb_emit_ldloc (mb, conv_arg);
5688 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5690 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5691 g_assert (m->orig_conv_args [argnum]);
5693 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5696 mono_mb_emit_ldloc (mb, conv_arg);
5697 mono_mb_emit_icall (mb, mono_marshal_free);
5699 mono_mb_patch_branch (mb, pos2);
5703 /* Free the original structure passed to native code */
5704 emit_struct_free (mb, klass, conv_arg);
5706 mono_mb_patch_branch (mb, pos);
5709 case MARSHAL_ACTION_PUSH:
5711 mono_mb_emit_ldloc_addr (mb, conv_arg);
5713 mono_mb_emit_ldloc (mb, conv_arg);
5716 case MARSHAL_ACTION_CONV_RESULT:
5717 if (klass->delegate) {
5718 g_assert (!t->byref);
5719 mono_mb_emit_stloc (mb, 0);
5720 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5721 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5722 mono_mb_emit_ldloc (mb, 0);
5723 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5724 mono_mb_emit_stloc (mb, 3);
5727 mono_mb_emit_stloc (mb, 0);
5729 /* Make a copy since emit_conv modifies local 0 */
5730 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5731 mono_mb_emit_ldloc (mb, 0);
5732 mono_mb_emit_stloc (mb, loc);
5734 mono_mb_emit_byte (mb, CEE_LDNULL);
5735 mono_mb_emit_stloc (mb, 3);
5737 mono_mb_emit_ldloc (mb, 0);
5738 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5740 /* allocate result object */
5742 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5743 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5744 mono_mb_emit_stloc (mb, 3);
5748 mono_mb_emit_ldloc (mb, 3);
5749 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5750 mono_mb_emit_stloc (mb, 1);
5752 /* emit conversion code */
5753 emit_struct_conv (mb, klass, TRUE);
5755 emit_struct_free (mb, klass, loc);
5757 /* Free the pointer allocated by unmanaged code */
5758 mono_mb_emit_ldloc (mb, loc);
5759 mono_mb_emit_icall (mb, mono_marshal_free);
5760 mono_mb_patch_branch (mb, pos);
5764 case MARSHAL_ACTION_MANAGED_CONV_IN:
5765 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5767 if (klass->delegate) {
5768 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5769 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5770 mono_mb_emit_ldarg (mb, argnum);
5772 mono_mb_emit_byte (mb, CEE_LDIND_I);
5773 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5774 mono_mb_emit_stloc (mb, conv_arg);
5778 if (klass == mono_defaults.stringbuilder_class) {
5779 MonoMarshalNative encoding;
5781 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5784 g_assert (encoding == MONO_NATIVE_LPSTR);
5786 g_assert (!t->byref);
5787 g_assert (encoding != -1);
5789 mono_mb_emit_ldarg (mb, argnum);
5790 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5791 mono_mb_emit_stloc (mb, conv_arg);
5795 /* The class can not have an automatic layout */
5796 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5797 mono_mb_emit_auto_layout_exception (mb, klass);
5801 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5802 mono_mb_emit_byte (mb, CEE_LDNULL);
5803 mono_mb_emit_stloc (mb, conv_arg);
5808 mono_mb_emit_ldarg (mb, argnum);
5812 /* Check for NULL and raise an exception */
5813 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5815 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5817 mono_mb_patch_branch (mb, pos2);
5818 mono_mb_emit_ldarg (mb, argnum);
5819 mono_mb_emit_byte (mb, CEE_LDIND_I);
5822 mono_mb_emit_stloc (mb, 0);
5824 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5825 mono_mb_emit_stloc (mb, conv_arg);
5827 mono_mb_emit_ldloc (mb, 0);
5828 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5830 /* Create and set dst */
5831 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5832 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5833 mono_mb_emit_stloc (mb, conv_arg);
5834 mono_mb_emit_ldloc (mb, conv_arg);
5835 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5836 mono_mb_emit_stloc (mb, 1);
5838 /* emit valuetype conversion code */
5839 emit_struct_conv (mb, klass, TRUE);
5841 mono_mb_patch_branch (mb, pos);
5844 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5845 if (klass->delegate) {
5847 mono_mb_emit_ldarg (mb, argnum);
5848 mono_mb_emit_ldloc (mb, conv_arg);
5849 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5850 mono_mb_emit_byte (mb, CEE_STIND_I);
5856 /* Check for null */
5857 mono_mb_emit_ldloc (mb, conv_arg);
5858 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5859 mono_mb_emit_ldarg (mb, argnum);
5860 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5861 mono_mb_emit_byte (mb, CEE_STIND_REF);
5862 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5864 mono_mb_patch_branch (mb, pos);
5867 mono_mb_emit_ldloc (mb, conv_arg);
5868 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5869 mono_mb_emit_stloc (mb, 0);
5871 /* Allocate and set dest */
5872 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5873 mono_mb_emit_byte (mb, CEE_CONV_I);
5874 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5875 mono_mb_emit_stloc (mb, 1);
5877 /* Update argument pointer */
5878 mono_mb_emit_ldarg (mb, argnum);
5879 mono_mb_emit_ldloc (mb, 1);
5880 mono_mb_emit_byte (mb, CEE_STIND_I);
5882 /* emit valuetype conversion code */
5883 emit_struct_conv (mb, klass, FALSE);
5885 mono_mb_patch_branch (mb, pos2);
5886 } else if (klass == mono_defaults.stringbuilder_class) {
5887 // FIXME: What to do here ?
5889 /* byval [Out] marshalling */
5891 /* FIXME: Handle null */
5894 mono_mb_emit_ldloc (mb, conv_arg);
5895 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5896 mono_mb_emit_stloc (mb, 0);
5899 mono_mb_emit_ldarg (mb, argnum);
5900 mono_mb_emit_stloc (mb, 1);
5902 /* emit valuetype conversion code */
5903 emit_struct_conv (mb, klass, FALSE);
5907 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5908 if (klass->delegate) {
5909 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5910 mono_mb_emit_stloc (mb, 3);
5914 /* The class can not have an automatic layout */
5915 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5916 mono_mb_emit_auto_layout_exception (mb, klass);
5920 mono_mb_emit_stloc (mb, 0);
5921 /* Check for null */
5922 mono_mb_emit_ldloc (mb, 0);
5923 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5924 mono_mb_emit_byte (mb, CEE_LDNULL);
5925 mono_mb_emit_stloc (mb, 3);
5926 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5928 mono_mb_patch_branch (mb, pos);
5931 mono_mb_emit_ldloc (mb, 0);
5932 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5933 mono_mb_emit_stloc (mb, 0);
5935 /* Allocate and set dest */
5936 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5937 mono_mb_emit_byte (mb, CEE_CONV_I);
5938 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5939 mono_mb_emit_byte (mb, CEE_DUP);
5940 mono_mb_emit_stloc (mb, 1);
5941 mono_mb_emit_stloc (mb, 3);
5943 emit_struct_conv (mb, klass, FALSE);
5945 mono_mb_patch_branch (mb, pos2);
5949 g_assert_not_reached ();
5960 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5961 MonoMarshalSpec *spec,
5962 int conv_arg, MonoType **conv_arg_type,
5963 MarshalAction action)
5965 MonoMethodBuilder *mb = m->mb;
5966 static MonoMethod *get_object_for_native_variant = NULL;
5967 static MonoMethod *get_native_variant_for_object = NULL;
5969 if (!get_object_for_native_variant)
5970 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5971 g_assert (get_object_for_native_variant);
5973 if (!get_native_variant_for_object)
5974 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5975 g_assert (get_native_variant_for_object);
5978 case MARSHAL_ACTION_CONV_IN: {
5979 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5982 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5984 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5986 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5989 mono_mb_emit_ldarg (mb, argnum);
5991 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5992 mono_mb_emit_ldloc_addr (mb, conv_arg);
5993 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5997 case MARSHAL_ACTION_CONV_OUT: {
5998 static MonoMethod *variant_clear = NULL;
6001 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6002 g_assert (variant_clear);
6005 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6006 mono_mb_emit_ldarg (mb, argnum);
6007 mono_mb_emit_ldloc_addr (mb, conv_arg);
6008 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6009 mono_mb_emit_byte (mb, CEE_STIND_REF);
6012 mono_mb_emit_ldloc_addr (mb, conv_arg);
6013 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6017 case MARSHAL_ACTION_PUSH:
6019 mono_mb_emit_ldloc_addr (mb, conv_arg);
6021 mono_mb_emit_ldloc (mb, conv_arg);
6024 case MARSHAL_ACTION_CONV_RESULT: {
6025 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6026 mono_mb_emit_exception_marshal_directive (mb, msg);
6030 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6031 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6034 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6036 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6038 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6042 mono_mb_emit_ldarg (mb, argnum);
6044 mono_mb_emit_ldarg_addr (mb, argnum);
6045 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6046 mono_mb_emit_stloc (mb, conv_arg);
6050 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6051 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6052 mono_mb_emit_ldloc (mb, conv_arg);
6053 mono_mb_emit_ldarg (mb, argnum);
6054 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6059 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6060 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6061 mono_mb_emit_exception_marshal_directive (mb, msg);
6066 g_assert_not_reached ();
6072 #endif /* DISABLE_COM */
6073 #endif /* DISABLE_JIT */
6076 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6078 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6079 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6081 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6083 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6095 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6096 MonoMarshalSpec *spec,
6097 int conv_arg, MonoType **conv_arg_type,
6098 MarshalAction action)
6102 case MARSHAL_ACTION_CONV_IN:
6103 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6105 case MARSHAL_ACTION_MANAGED_CONV_IN:
6106 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6110 MonoMethodBuilder *mb = m->mb;
6111 MonoClass *klass = mono_class_from_mono_type (t);
6112 gboolean need_convert, need_free;
6113 MonoMarshalNative encoding;
6115 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6118 case MARSHAL_ACTION_CONV_IN:
6119 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6120 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6122 if (klass->element_class->blittable) {
6123 mono_mb_emit_ldarg (mb, argnum);
6125 mono_mb_emit_byte (mb, CEE_LDIND_I);
6126 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6127 mono_mb_emit_stloc (mb, conv_arg);
6130 guint32 label1, label2, label3;
6131 int index_var, src_var, dest_ptr, esize;
6132 MonoMarshalConv conv;
6133 gboolean is_string = FALSE;
6135 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6137 eklass = klass->element_class;
6139 if (eklass == mono_defaults.string_class) {
6141 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6143 else if (eklass == mono_defaults.stringbuilder_class) {
6145 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6148 conv = (MonoMarshalConv)-1;
6150 if (is_string && conv == -1) {
6151 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6152 mono_mb_emit_exception_marshal_directive (mb, msg);
6156 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6157 mono_mb_emit_ldarg (mb, argnum);
6159 mono_mb_emit_byte (mb, CEE_LDIND_I);
6160 mono_mb_emit_stloc (mb, src_var);
6163 mono_mb_emit_ldloc (mb, src_var);
6164 mono_mb_emit_stloc (mb, conv_arg);
6165 mono_mb_emit_ldloc (mb, src_var);
6166 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6169 esize = sizeof (gpointer);
6170 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6171 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6173 esize = mono_class_native_size (eklass, NULL);
6175 /* allocate space for the native struct and store the address */
6176 mono_mb_emit_icon (mb, esize);
6177 mono_mb_emit_ldloc (mb, src_var);
6178 mono_mb_emit_byte (mb, CEE_LDLEN);
6180 if (eklass == mono_defaults.string_class) {
6181 /* Make the array bigger for the terminating null */
6182 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6183 mono_mb_emit_byte (mb, CEE_ADD);
6185 mono_mb_emit_byte (mb, CEE_MUL);
6186 mono_mb_emit_byte (mb, CEE_PREFIX1);
6187 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6188 mono_mb_emit_stloc (mb, conv_arg);
6190 mono_mb_emit_ldloc (mb, conv_arg);
6191 mono_mb_emit_stloc (mb, dest_ptr);
6193 /* Emit marshalling loop */
6194 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6195 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6196 mono_mb_emit_stloc (mb, index_var);
6197 label2 = mono_mb_get_label (mb);
6198 mono_mb_emit_ldloc (mb, index_var);
6199 mono_mb_emit_ldloc (mb, src_var);
6200 mono_mb_emit_byte (mb, CEE_LDLEN);
6201 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6203 /* Emit marshalling code */
6206 mono_mb_emit_ldloc (mb, dest_ptr);
6207 mono_mb_emit_ldloc (mb, src_var);
6208 mono_mb_emit_ldloc (mb, index_var);
6209 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6210 mono_mb_emit_icall (mb, conv_to_icall (conv));
6211 mono_mb_emit_byte (mb, CEE_STIND_I);
6213 /* set the src_ptr */
6214 mono_mb_emit_ldloc (mb, src_var);
6215 mono_mb_emit_ldloc (mb, index_var);
6216 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6217 mono_mb_emit_stloc (mb, 0);
6220 mono_mb_emit_ldloc (mb, dest_ptr);
6221 mono_mb_emit_stloc (mb, 1);
6223 /* emit valuetype conversion code */
6224 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6227 mono_mb_emit_add_to_local (mb, index_var, 1);
6228 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6230 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6232 mono_mb_patch_branch (mb, label3);
6234 if (eklass == mono_defaults.string_class) {
6235 /* Null terminate */
6236 mono_mb_emit_ldloc (mb, dest_ptr);
6237 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6238 mono_mb_emit_byte (mb, CEE_STIND_REF);
6241 mono_mb_patch_branch (mb, label1);
6246 case MARSHAL_ACTION_CONV_OUT:
6247 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6248 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);
6249 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6252 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6253 int param_num = spec->data.array_data.param_num;
6254 MonoType *param_type;
6256 param_type = m->sig->params [param_num];
6258 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6259 char *msg = g_strdup ("Not implemented.");
6260 mono_mb_emit_exception_marshal_directive (mb, msg);
6265 mono_mb_emit_ldarg (mb, argnum);
6267 /* Create the managed array */
6268 mono_mb_emit_ldarg (mb, param_num);
6269 if (m->sig->params [param_num]->byref)
6270 // FIXME: Support other types
6271 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6272 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6273 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6274 /* Store into argument */
6275 mono_mb_emit_byte (mb, CEE_STIND_I);
6279 if (need_convert || need_free) {
6280 /* FIXME: Optimize blittable case */
6282 guint32 label1, label2, label3;
6283 int index_var, src_ptr, loc, esize;
6285 eklass = klass->element_class;
6286 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6287 esize = sizeof (gpointer);
6288 else if (eklass == mono_defaults.char_class)
6289 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6291 esize = mono_class_native_size (eklass, NULL);
6292 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6293 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6296 mono_mb_emit_ldarg (mb, argnum);
6298 mono_mb_emit_byte (mb, CEE_LDIND_I);
6299 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6301 mono_mb_emit_ldloc (mb, conv_arg);
6302 mono_mb_emit_stloc (mb, src_ptr);
6304 /* Emit marshalling loop */
6305 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6306 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6307 mono_mb_emit_stloc (mb, index_var);
6308 label2 = mono_mb_get_label (mb);
6309 mono_mb_emit_ldloc (mb, index_var);
6310 mono_mb_emit_ldarg (mb, argnum);
6312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6313 mono_mb_emit_byte (mb, CEE_LDLEN);
6314 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6316 /* Emit marshalling code */
6318 if (eklass == mono_defaults.stringbuilder_class) {
6319 gboolean need_free2;
6320 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6322 g_assert (conv != -1);
6325 mono_mb_emit_ldarg (mb, argnum);
6327 mono_mb_emit_byte (mb, CEE_LDIND_I);
6328 mono_mb_emit_ldloc (mb, index_var);
6329 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6332 mono_mb_emit_ldloc (mb, src_ptr);
6333 mono_mb_emit_byte (mb, CEE_LDIND_I);
6335 mono_mb_emit_icall (mb, conv_to_icall (conv));
6339 mono_mb_emit_ldloc (mb, src_ptr);
6340 mono_mb_emit_byte (mb, CEE_LDIND_I);
6342 mono_mb_emit_icall (mb, mono_marshal_free);
6345 else if (eklass == mono_defaults.string_class) {
6348 mono_mb_emit_ldloc (mb, src_ptr);
6349 mono_mb_emit_byte (mb, CEE_LDIND_I);
6351 mono_mb_emit_icall (mb, mono_marshal_free);
6356 /* set the src_ptr */
6357 mono_mb_emit_ldloc (mb, src_ptr);
6358 mono_mb_emit_stloc (mb, 0);
6361 mono_mb_emit_ldarg (mb, argnum);
6363 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6364 mono_mb_emit_ldloc (mb, index_var);
6365 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6366 mono_mb_emit_stloc (mb, 1);
6368 /* emit valuetype conversion code */
6369 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6373 mono_mb_emit_ldloc (mb, src_ptr);
6374 mono_mb_emit_stloc (mb, loc);
6375 mono_mb_emit_ldloc (mb, loc);
6377 emit_struct_free (mb, eklass, loc);
6381 mono_mb_emit_add_to_local (mb, index_var, 1);
6382 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6384 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6386 mono_mb_patch_branch (mb, label1);
6387 mono_mb_patch_branch (mb, label3);
6390 if (klass->element_class->blittable) {
6391 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6393 mono_mb_emit_ldarg (mb, argnum);
6395 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6396 mono_mb_emit_ldloc (mb, conv_arg);
6397 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6402 case MARSHAL_ACTION_PUSH:
6404 mono_mb_emit_ldloc_addr (mb, conv_arg);
6406 mono_mb_emit_ldloc (mb, conv_arg);
6409 case MARSHAL_ACTION_CONV_RESULT:
6410 /* fixme: we need conversions here */
6411 mono_mb_emit_stloc (mb, 3);
6414 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6416 guint32 label1, label2, label3;
6417 int index_var, src_ptr, esize, param_num, num_elem;
6418 MonoMarshalConv conv;
6419 gboolean is_string = FALSE;
6421 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6422 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6425 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6426 mono_mb_emit_exception_marshal_directive (mb, msg);
6430 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6431 mono_mb_emit_exception_marshal_directive (mb, msg);
6434 if (spec->native != MONO_NATIVE_LPARRAY) {
6435 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6436 mono_mb_emit_exception_marshal_directive (mb, msg);
6440 /* FIXME: t is from the method which is wrapped, not the delegate type */
6441 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6443 param_num = spec->data.array_data.param_num;
6444 num_elem = spec->data.array_data.num_elem;
6445 if (spec->data.array_data.elem_mult == 0)
6446 /* param_num is not specified */
6449 if (param_num == -1) {
6450 if (num_elem <= 0) {
6451 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6452 mono_mb_emit_exception_marshal_directive (mb, msg);
6457 /* FIXME: Optimize blittable case */
6459 eklass = klass->element_class;
6460 if (eklass == mono_defaults.string_class) {
6462 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6464 else if (eklass == mono_defaults.stringbuilder_class) {
6466 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6469 conv = (MonoMarshalConv)-1;
6471 mono_marshal_load_type_info (eklass);
6474 esize = sizeof (gpointer);
6476 esize = mono_class_native_size (eklass, NULL);
6477 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6479 mono_mb_emit_byte (mb, CEE_LDNULL);
6480 mono_mb_emit_stloc (mb, conv_arg);
6482 /* Check param index */
6483 if (param_num != -1) {
6484 if (param_num >= m->sig->param_count) {
6485 char *msg = g_strdup ("Array size control parameter index is out of range.");
6486 mono_mb_emit_exception_marshal_directive (mb, msg);
6489 switch (m->sig->params [param_num]->type) {
6502 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6503 mono_mb_emit_exception_marshal_directive (mb, msg);
6510 mono_mb_emit_ldarg (mb, argnum);
6511 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6513 mono_mb_emit_ldarg (mb, argnum);
6514 mono_mb_emit_stloc (mb, src_ptr);
6516 /* Create managed array */
6518 * The LPArray marshalling spec says that sometimes param_num starts
6519 * from 1, sometimes it starts from 0. But MS seems to allways start
6523 if (param_num == -1) {
6524 mono_mb_emit_icon (mb, num_elem);
6526 mono_mb_emit_ldarg (mb, param_num);
6528 mono_mb_emit_icon (mb, num_elem);
6529 mono_mb_emit_byte (mb, CEE_ADD);
6531 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6534 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6535 mono_mb_emit_stloc (mb, conv_arg);
6537 if (eklass->blittable) {
6538 mono_mb_emit_ldloc (mb, conv_arg);
6539 mono_mb_emit_byte (mb, CEE_CONV_I);
6540 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6541 mono_mb_emit_byte (mb, CEE_ADD);
6542 mono_mb_emit_ldarg (mb, argnum);
6543 mono_mb_emit_ldloc (mb, conv_arg);
6544 mono_mb_emit_byte (mb, CEE_LDLEN);
6545 mono_mb_emit_icon (mb, esize);
6546 mono_mb_emit_byte (mb, CEE_MUL);
6547 mono_mb_emit_byte (mb, CEE_PREFIX1);
6548 mono_mb_emit_byte (mb, CEE_CPBLK);
6552 /* Emit marshalling loop */
6553 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6554 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6555 mono_mb_emit_stloc (mb, index_var);
6556 label2 = mono_mb_get_label (mb);
6557 mono_mb_emit_ldloc (mb, index_var);
6558 mono_mb_emit_ldloc (mb, conv_arg);
6559 mono_mb_emit_byte (mb, CEE_LDLEN);
6560 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6562 /* Emit marshalling code */
6564 g_assert (conv != -1);
6566 mono_mb_emit_ldloc (mb, conv_arg);
6567 mono_mb_emit_ldloc (mb, index_var);
6569 mono_mb_emit_ldloc (mb, src_ptr);
6570 mono_mb_emit_byte (mb, CEE_LDIND_I);
6572 mono_mb_emit_icall (mb, conv_to_icall (conv));
6573 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6576 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6577 mono_mb_emit_exception_marshal_directive (mb, msg);
6581 mono_mb_emit_add_to_local (mb, index_var, 1);
6582 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6584 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6586 mono_mb_patch_branch (mb, label1);
6587 mono_mb_patch_branch (mb, label3);
6591 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6593 guint32 label1, label2, label3;
6594 int index_var, dest_ptr, esize, param_num, num_elem;
6595 MonoMarshalConv conv;
6596 gboolean is_string = FALSE;
6599 /* Already handled in CONV_IN */
6602 /* These are already checked in CONV_IN */
6603 g_assert (!t->byref);
6604 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6605 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6607 param_num = spec->data.array_data.param_num;
6608 num_elem = spec->data.array_data.num_elem;
6610 if (spec->data.array_data.elem_mult == 0)
6611 /* param_num is not specified */
6614 if (param_num == -1) {
6615 if (num_elem <= 0) {
6616 g_assert_not_reached ();
6620 /* FIXME: Optimize blittable case */
6622 eklass = klass->element_class;
6623 if (eklass == mono_defaults.string_class) {
6625 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6627 else if (eklass == mono_defaults.stringbuilder_class) {
6629 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6632 conv = (MonoMarshalConv)-1;
6634 mono_marshal_load_type_info (eklass);
6637 esize = sizeof (gpointer);
6639 esize = mono_class_native_size (eklass, NULL);
6641 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6644 mono_mb_emit_ldloc (mb, conv_arg);
6645 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6647 mono_mb_emit_ldarg (mb, argnum);
6648 mono_mb_emit_stloc (mb, dest_ptr);
6650 if (eklass->blittable) {
6652 mono_mb_emit_ldarg (mb, argnum);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6655 mono_mb_emit_byte (mb, CEE_CONV_I);
6656 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6657 mono_mb_emit_byte (mb, CEE_ADD);
6659 mono_mb_emit_ldloc (mb, conv_arg);
6660 mono_mb_emit_byte (mb, CEE_LDLEN);
6661 mono_mb_emit_icon (mb, esize);
6662 mono_mb_emit_byte (mb, CEE_MUL);
6663 mono_mb_emit_byte (mb, CEE_PREFIX1);
6664 mono_mb_emit_byte (mb, CEE_CPBLK);
6668 /* Emit marshalling loop */
6669 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6670 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6671 mono_mb_emit_stloc (mb, index_var);
6672 label2 = mono_mb_get_label (mb);
6673 mono_mb_emit_ldloc (mb, index_var);
6674 mono_mb_emit_ldloc (mb, conv_arg);
6675 mono_mb_emit_byte (mb, CEE_LDLEN);
6676 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6678 /* Emit marshalling code */
6680 g_assert (conv != -1);
6683 mono_mb_emit_ldloc (mb, dest_ptr);
6686 mono_mb_emit_ldloc (mb, conv_arg);
6687 mono_mb_emit_ldloc (mb, index_var);
6689 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6691 mono_mb_emit_icall (mb, conv_to_icall (conv));
6692 mono_mb_emit_byte (mb, CEE_STIND_I);
6695 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6696 mono_mb_emit_exception_marshal_directive (mb, msg);
6700 mono_mb_emit_add_to_local (mb, index_var, 1);
6701 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6703 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6705 mono_mb_patch_branch (mb, label1);
6706 mono_mb_patch_branch (mb, label3);
6710 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6712 guint32 label1, label2, label3;
6713 int index_var, src, dest, esize;
6714 MonoMarshalConv conv = (MonoMarshalConv)-1;
6715 gboolean is_string = FALSE;
6717 g_assert (!t->byref);
6719 eklass = klass->element_class;
6721 mono_marshal_load_type_info (eklass);
6723 if (eklass == mono_defaults.string_class) {
6725 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6728 g_assert_not_reached ();
6732 esize = sizeof (gpointer);
6733 else if (eklass == mono_defaults.char_class)
6734 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6736 esize = mono_class_native_size (eklass, NULL);
6738 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6739 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6741 mono_mb_emit_stloc (mb, src);
6742 mono_mb_emit_ldloc (mb, src);
6743 mono_mb_emit_stloc (mb, 3);
6745 /* Check for null */
6746 mono_mb_emit_ldloc (mb, src);
6747 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6749 /* Allocate native array */
6750 mono_mb_emit_icon (mb, esize);
6751 mono_mb_emit_ldloc (mb, src);
6752 mono_mb_emit_byte (mb, CEE_LDLEN);
6754 if (eklass == mono_defaults.string_class) {
6755 /* Make the array bigger for the terminating null */
6756 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6757 mono_mb_emit_byte (mb, CEE_ADD);
6759 mono_mb_emit_byte (mb, CEE_MUL);
6760 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6761 mono_mb_emit_stloc (mb, dest);
6762 mono_mb_emit_ldloc (mb, dest);
6763 mono_mb_emit_stloc (mb, 3);
6765 /* Emit marshalling loop */
6766 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6767 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6768 mono_mb_emit_stloc (mb, index_var);
6769 label2 = mono_mb_get_label (mb);
6770 mono_mb_emit_ldloc (mb, index_var);
6771 mono_mb_emit_ldloc (mb, src);
6772 mono_mb_emit_byte (mb, CEE_LDLEN);
6773 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6775 /* Emit marshalling code */
6777 g_assert (conv != -1);
6780 mono_mb_emit_ldloc (mb, dest);
6783 mono_mb_emit_ldloc (mb, src);
6784 mono_mb_emit_ldloc (mb, index_var);
6786 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6788 mono_mb_emit_icall (mb, conv_to_icall (conv));
6789 mono_mb_emit_byte (mb, CEE_STIND_I);
6792 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6793 mono_mb_emit_exception_marshal_directive (mb, msg);
6797 mono_mb_emit_add_to_local (mb, index_var, 1);
6798 mono_mb_emit_add_to_local (mb, dest, esize);
6800 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6802 mono_mb_patch_branch (mb, label3);
6803 mono_mb_patch_branch (mb, label1);
6807 g_assert_not_reached ();
6814 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6817 return &mono_defaults.int32_class->byval_arg;
6819 switch (spec->native) {
6820 case MONO_NATIVE_I1:
6821 case MONO_NATIVE_U1:
6822 return &mono_defaults.byte_class->byval_arg;
6823 case MONO_NATIVE_VARIANTBOOL:
6824 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6825 return &mono_defaults.int16_class->byval_arg;
6826 case MONO_NATIVE_BOOLEAN:
6827 return &mono_defaults.int32_class->byval_arg;
6829 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6830 return &mono_defaults.int32_class->byval_arg;
6836 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6838 MonoClass* conv_arg_class = mono_defaults.int32_class;
6840 switch (spec->native) {
6841 case MONO_NATIVE_I1:
6842 case MONO_NATIVE_U1:
6843 conv_arg_class = mono_defaults.byte_class;
6844 if (ldop) *ldop = CEE_LDIND_I1;
6846 case MONO_NATIVE_VARIANTBOOL:
6847 conv_arg_class = mono_defaults.int16_class;
6848 if (ldop) *ldop = CEE_LDIND_I2;
6850 case MONO_NATIVE_BOOLEAN:
6853 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6856 return conv_arg_class;
6860 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6861 MonoMarshalSpec *spec,
6862 int conv_arg, MonoType **conv_arg_type,
6863 MarshalAction action)
6867 case MARSHAL_ACTION_CONV_IN:
6869 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6871 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6874 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6875 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6877 *conv_arg_type = &conv_arg_class->this_arg;
6879 *conv_arg_type = &conv_arg_class->byval_arg;
6885 MonoMethodBuilder *mb = m->mb;
6888 case MARSHAL_ACTION_CONV_IN: {
6889 MonoType *local_type;
6891 guint8 ldc_op = CEE_LDC_I4_1;
6893 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6895 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6897 *conv_arg_type = local_type;
6898 conv_arg = mono_mb_add_local (mb, local_type);
6900 mono_mb_emit_ldarg (mb, argnum);
6902 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6903 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6904 mono_mb_emit_byte (mb, ldc_op);
6905 mono_mb_emit_stloc (mb, conv_arg);
6906 mono_mb_patch_branch (mb, label_false);
6911 case MARSHAL_ACTION_CONV_OUT:
6913 int label_false, label_end;
6917 mono_mb_emit_ldarg (mb, argnum);
6918 mono_mb_emit_ldloc (mb, conv_arg);
6920 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6921 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6923 label_end = mono_mb_emit_branch (mb, CEE_BR);
6924 mono_mb_patch_branch (mb, label_false);
6925 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6926 mono_mb_patch_branch (mb, label_end);
6928 mono_mb_emit_byte (mb, CEE_STIND_I1);
6932 case MARSHAL_ACTION_PUSH:
6934 mono_mb_emit_ldloc_addr (mb, conv_arg);
6936 mono_mb_emit_ldloc (mb, conv_arg);
6938 mono_mb_emit_ldarg (mb, argnum);
6941 case MARSHAL_ACTION_CONV_RESULT:
6942 /* maybe we need to make sure that it fits within 8 bits */
6943 mono_mb_emit_stloc (mb, 3);
6946 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6947 MonoClass* conv_arg_class = mono_defaults.int32_class;
6948 guint8 ldop = CEE_LDIND_I4;
6949 int label_null, label_false;
6951 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6952 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6955 *conv_arg_type = &conv_arg_class->this_arg;
6957 *conv_arg_type = &conv_arg_class->byval_arg;
6960 mono_mb_emit_ldarg (mb, argnum);
6964 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6965 mono_mb_emit_ldarg (mb, argnum);
6966 mono_mb_emit_byte (mb, ldop);
6970 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6971 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6972 mono_mb_emit_stloc (mb, conv_arg);
6973 mono_mb_patch_branch (mb, label_false);
6976 mono_mb_patch_branch (mb, label_null);
6980 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6981 guint8 stop = CEE_STIND_I4;
6982 guint8 ldc_op = CEE_LDC_I4_1;
6983 int label_null,label_false, label_end;;
6988 switch (spec->native) {
6989 case MONO_NATIVE_I1:
6990 case MONO_NATIVE_U1:
6991 stop = CEE_STIND_I1;
6993 case MONO_NATIVE_VARIANTBOOL:
6994 stop = CEE_STIND_I2;
6995 ldc_op = CEE_LDC_I4_M1;
7003 mono_mb_emit_ldarg (mb, argnum);
7004 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7006 mono_mb_emit_ldarg (mb, argnum);
7007 mono_mb_emit_ldloc (mb, conv_arg);
7009 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7010 mono_mb_emit_byte (mb, ldc_op);
7011 label_end = mono_mb_emit_branch (mb, CEE_BR);
7013 mono_mb_patch_branch (mb, label_false);
7014 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7015 mono_mb_patch_branch (mb, label_end);
7017 mono_mb_emit_byte (mb, stop);
7018 mono_mb_patch_branch (mb, label_null);
7023 g_assert_not_reached ();
7030 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7031 MonoMarshalSpec *spec, int conv_arg,
7032 MonoType **conv_arg_type, MarshalAction action)
7035 MonoMethodBuilder *mb = m->mb;
7038 case MARSHAL_ACTION_CONV_IN:
7039 /* MS seems to allow this in some cases, ie. bxc #158 */
7041 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7042 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7043 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7048 case MARSHAL_ACTION_PUSH:
7049 mono_mb_emit_ldarg (mb, argnum);
7052 case MARSHAL_ACTION_CONV_RESULT:
7053 /* no conversions necessary */
7054 mono_mb_emit_stloc (mb, 3);
7065 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7066 MonoMarshalSpec *spec, int conv_arg,
7067 MonoType **conv_arg_type, MarshalAction action)
7070 MonoMethodBuilder *mb = m->mb;
7073 case MARSHAL_ACTION_PUSH:
7074 /* fixme: dont know how to marshal that. We cant simply
7075 * convert it to a one byte UTF8 character, because an
7076 * unicode character may need more that one byte in UTF8 */
7077 mono_mb_emit_ldarg (mb, argnum);
7080 case MARSHAL_ACTION_CONV_RESULT:
7081 /* fixme: we need conversions here */
7082 mono_mb_emit_stloc (mb, 3);
7093 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7094 MonoMarshalSpec *spec, int conv_arg,
7095 MonoType **conv_arg_type, MarshalAction action)
7098 MonoMethodBuilder *mb = m->mb;
7101 case MARSHAL_ACTION_PUSH:
7102 mono_mb_emit_ldarg (mb, argnum);
7105 case MARSHAL_ACTION_CONV_RESULT:
7106 /* no conversions necessary */
7107 mono_mb_emit_stloc (mb, 3);
7118 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7119 MonoMarshalSpec *spec, int conv_arg,
7120 MonoType **conv_arg_type, MarshalAction action)
7122 /* Ensure that we have marshalling info for this param */
7123 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7125 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7126 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7128 if (spec && spec->native == MONO_NATIVE_ASANY)
7129 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7132 case MONO_TYPE_VALUETYPE:
7133 if (t->data.klass == mono_defaults.handleref_class)
7134 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7136 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7137 case MONO_TYPE_STRING:
7138 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7139 case MONO_TYPE_CLASS:
7140 case MONO_TYPE_OBJECT:
7142 if (spec && spec->native == MONO_NATIVE_STRUCT)
7143 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7145 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7146 spec->native == MONO_NATIVE_IDISPATCH ||
7147 spec->native == MONO_NATIVE_INTERFACE))
7148 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7149 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7150 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7151 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7152 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7155 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7156 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7157 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7159 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7160 case MONO_TYPE_ARRAY:
7161 case MONO_TYPE_SZARRAY:
7162 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7163 case MONO_TYPE_BOOLEAN:
7164 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7166 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7167 case MONO_TYPE_CHAR:
7168 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7181 case MONO_TYPE_FNPTR:
7182 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 case MONO_TYPE_GENERICINST:
7184 if (mono_type_generic_inst_is_valuetype (t))
7185 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7187 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7195 * mono_marshal_emit_native_wrapper:
7196 * @image: the image to use for looking up custom marshallers
7197 * @sig: The signature of the native function
7198 * @piinfo: Marshalling information
7199 * @mspecs: Marshalling information
7200 * @aot: whenever the created method will be compiled by the AOT compiler
7201 * @method: if non-NULL, the pinvoke method to call
7202 * @check_exceptions: Whenever to check for pending exceptions after the native call
7203 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7205 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7208 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)
7210 EmitMarshalContext m;
7211 MonoMethodSignature *csig;
7213 int i, argnum, *tmp_locals;
7214 int type, param_shift = 0;
7215 static MonoMethodSignature *get_last_error_sig = NULL;
7216 int coop_gc_stack_dummy, coop_gc_var;
7218 memset (&m, 0, sizeof (m));
7223 /* we copy the signature, so that we can set pinvoke to 0 */
7225 /* The function address is passed as the first argument */
7226 g_assert (!sig->hasthis);
7229 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7237 /* we allocate local for use with emit_struct_conv() */
7238 /* allocate local 0 (pointer) src_ptr */
7239 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7240 /* allocate local 1 (pointer) dst_ptr */
7241 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7242 /* allocate local 2 (boolean) delete_old */
7243 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7245 /* delete_old = FALSE */
7246 mono_mb_emit_icon (mb, 0);
7247 mono_mb_emit_stloc (mb, 2);
7249 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7250 /* allocate local 3 to store the return value */
7251 mono_mb_add_local (mb, sig->ret);
7254 if (mono_threads_is_coop_enabled ()) {
7255 /* local 4, dummy local used to get a stack address for suspend funcs */
7256 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7257 /* local 5, the local to be used when calling the suspend funcs */
7258 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7261 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7262 /* Return type custom marshaling */
7264 * Since we can't determine the return type of the unmanaged function,
7265 * we assume it returns a pointer, and pass that pointer to
7266 * MarshalNativeToManaged.
7268 csig->ret = &mono_defaults.int_class->byval_arg;
7271 /* we first do all conversions */
7272 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7273 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7275 for (i = 0; i < sig->param_count; i ++) {
7276 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7279 /* push all arguments */
7282 mono_mb_emit_byte (mb, CEE_LDARG_0);
7284 for (i = 0; i < sig->param_count; i++) {
7285 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7288 if (mono_threads_is_coop_enabled ()) {
7289 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7290 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7291 mono_mb_emit_stloc (mb, coop_gc_var);
7294 /* call the native method */
7296 mono_mb_emit_byte (mb, CEE_LDARG_0);
7297 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7298 mono_mb_emit_byte (mb, CEE_LDIND_I);
7299 mono_mb_emit_calli (mb, csig);
7300 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7302 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7304 g_assert_not_reached ();
7309 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7310 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7311 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7312 mono_mb_emit_calli (mb, csig);
7314 mono_mb_emit_native_call (mb, csig, func);
7318 /* Set LastError if needed */
7319 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7320 if (!get_last_error_sig) {
7321 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7322 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7323 get_last_error_sig->pinvoke = 1;
7328 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7329 * clobber its value.
7331 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7332 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7334 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7338 if (mono_threads_is_coop_enabled ()) {
7339 mono_mb_emit_ldloc (mb, coop_gc_var);
7340 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7341 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7344 /* convert the result */
7345 if (!sig->ret->byref) {
7346 MonoMarshalSpec *spec = mspecs [0];
7347 type = sig->ret->type;
7349 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7350 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7355 case MONO_TYPE_VOID:
7357 case MONO_TYPE_VALUETYPE:
7358 klass = sig->ret->data.klass;
7359 if (klass->enumtype) {
7360 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7363 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7377 case MONO_TYPE_FNPTR:
7378 case MONO_TYPE_STRING:
7379 case MONO_TYPE_CLASS:
7380 case MONO_TYPE_OBJECT:
7381 case MONO_TYPE_BOOLEAN:
7382 case MONO_TYPE_ARRAY:
7383 case MONO_TYPE_SZARRAY:
7384 case MONO_TYPE_CHAR:
7386 case MONO_TYPE_GENERICINST:
7387 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7389 case MONO_TYPE_TYPEDBYREF:
7391 g_warning ("return type 0x%02x unknown", sig->ret->type);
7392 g_assert_not_reached ();
7396 mono_mb_emit_stloc (mb, 3);
7400 * Need to call this after converting the result since MONO_VTADDR needs
7401 * to be adjacent to the call instruction.
7403 if (check_exceptions)
7404 emit_thread_interrupt_checkpoint (mb);
7406 /* we need to convert byref arguments back and free string arrays */
7407 for (i = 0; i < sig->param_count; i++) {
7408 MonoType *t = sig->params [i];
7409 MonoMarshalSpec *spec = mspecs [i + 1];
7411 argnum = i + param_shift;
7413 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7414 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7419 case MONO_TYPE_STRING:
7420 case MONO_TYPE_VALUETYPE:
7421 case MONO_TYPE_CLASS:
7422 case MONO_TYPE_OBJECT:
7423 case MONO_TYPE_SZARRAY:
7424 case MONO_TYPE_BOOLEAN:
7425 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7432 if (!MONO_TYPE_IS_VOID(sig->ret))
7433 mono_mb_emit_ldloc (mb, 3);
7435 mono_mb_emit_byte (mb, CEE_RET);
7437 #endif /* DISABLE_JIT */
7440 * mono_marshal_get_native_wrapper:
7441 * @method: The MonoMethod to wrap.
7442 * @check_exceptions: Whenever to check for pending exceptions
7444 * generates IL code for the pinvoke wrapper (the generated method
7445 * calls the unmanaged code in piinfo->addr)
7446 * The wrapper info for the wrapper is a WrapperInfo structure.
7449 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7451 MonoMethodSignature *sig, *csig;
7452 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7453 MonoMethodBuilder *mb;
7454 MonoMarshalSpec **mspecs;
7457 gboolean pinvoke = FALSE;
7460 const char *exc_class = "MissingMethodException";
7461 const char *exc_arg = NULL;
7464 g_assert (method != NULL);
7465 g_assert (mono_method_signature (method)->pinvoke);
7467 GHashTable **cache_ptr;
7470 if (check_exceptions)
7471 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7473 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7475 if (check_exceptions)
7476 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7478 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7481 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7483 if ((res = mono_marshal_find_in_cache (cache, method)))
7486 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7487 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7491 return mono_cominterop_get_native_wrapper (method);
7493 g_assert_not_reached ();
7497 sig = mono_method_signature (method);
7499 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7500 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7503 if (!piinfo->addr) {
7505 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7506 exc_arg = "Method contains unsupported native code";
7508 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7510 piinfo->addr = mono_lookup_internal_call (method);
7514 /* hack - redirect certain string constructors to CreateString */
7515 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7516 g_assert (!pinvoke);
7517 g_assert (method->string_ctor);
7518 g_assert (sig->hasthis);
7520 /* CreateString returns a value */
7521 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7522 csig->ret = &mono_defaults.string_class->byval_arg;
7526 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7527 if (!strcmp ("CreateString", res->name) &&
7528 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7531 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7532 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7534 /* create a wrapper to preserve .ctor in stack trace */
7535 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7538 mono_mb_emit_byte (mb, CEE_LDARG_0);
7539 for (i = 1; i <= csig->param_count; i++)
7540 mono_mb_emit_ldarg (mb, i);
7541 mono_mb_emit_managed_call (mb, res, NULL);
7542 mono_mb_emit_byte (mb, CEE_RET);
7545 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7546 info->d.string_ctor.method = method;
7548 /* use native_wrapper_cache because internal calls are looked up there */
7549 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7550 csig->param_count + 1, info, NULL);
7557 /* exception will be thrown */
7558 piinfo->addr = NULL;
7559 g_warning ("cannot find CreateString for .ctor");
7562 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7564 mb->method->save_lmf = 1;
7567 * In AOT mode and embedding scenarios, it is possible that the icall is not
7568 * registered in the runtime doing the AOT compilation.
7570 if (!piinfo->addr && !aot) {
7572 mono_mb_emit_exception (mb, exc_class, exc_arg);
7574 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7575 info->d.managed_to_native.method = method;
7577 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7579 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7580 csig->param_count + 16, info, NULL);
7586 /* internal calls: we simply push all arguments and call the method (no conversions) */
7587 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7589 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7591 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7593 /* hack - string constructors returns a value */
7594 if (method->string_ctor)
7595 csig->ret = &mono_defaults.string_class->byval_arg;
7602 * Add a null check since public icalls can be called with 'call' which
7603 * does no such check.
7605 mono_mb_emit_byte (mb, CEE_LDARG_0);
7606 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7607 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7608 mono_mb_patch_branch (mb, pos);
7610 mono_mb_emit_byte (mb, CEE_LDARG_0);
7613 for (i = 0; i < sig->param_count; i++)
7614 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7618 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7619 mono_mb_emit_calli (mb, csig);
7621 g_assert (piinfo->addr);
7622 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7624 if (check_exceptions)
7625 emit_thread_interrupt_checkpoint (mb);
7626 mono_mb_emit_byte (mb, CEE_RET);
7628 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7629 info->d.managed_to_native.method = method;
7631 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7633 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7642 g_assert (piinfo->addr);
7645 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7646 mono_method_get_marshal_info (method, mspecs);
7648 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7650 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7651 info->d.managed_to_native.method = method;
7653 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7655 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7660 for (i = sig->param_count; i >= 0; i--)
7662 mono_metadata_free_marshal_spec (mspecs [i]);
7666 /* mono_method_print_code (res); */
7672 * mono_marshal_get_native_func_wrapper:
7673 * @image: The image to use for memory allocation and for looking up custom marshallers.
7674 * @sig: The signature of the function
7675 * @func: The native function to wrap
7677 * Returns a wrapper method around native functions, similar to the pinvoke
7681 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7682 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7684 MonoMethodSignature *csig;
7686 SignaturePointerPair key, *new_key;
7687 MonoMethodBuilder *mb;
7696 // Generic types are not safe to place in MonoImage caches.
7697 g_assert (!sig->is_inflated);
7699 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7700 if ((res = mono_marshal_find_in_cache (cache, &key)))
7703 name = g_strdup_printf ("wrapper_native_%p", func);
7704 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7705 mb->method->save_lmf = 1;
7708 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7711 csig = mono_metadata_signature_dup_full (image, sig);
7714 new_key = g_new (SignaturePointerPair,1);
7715 new_key->sig = csig;
7716 new_key->pointer = func;
7718 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7724 mono_marshal_set_wrapper_info (res, NULL);
7730 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7734 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7736 MonoMethodSignature *sig, *csig;
7737 MonoMethodBuilder *mb;
7742 MonoMethodPInvoke mpiinfo;
7743 MonoMethodPInvoke *piinfo = &mpiinfo;
7744 MonoMarshalSpec **mspecs;
7745 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7746 MonoImage *image = invoke->klass->image;
7749 // FIXME: include UnmanagedFunctionPointerAttribute info
7752 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7754 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7756 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7759 memset (&mpiinfo, 0, sizeof (mpiinfo));
7760 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7762 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7763 mono_method_get_marshal_info (invoke, mspecs);
7764 /* Freed below so don't alloc from mempool */
7765 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7768 name = g_strdup_printf ("wrapper_aot_native");
7769 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7770 mb->method->save_lmf = 1;
7773 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7777 info->d.managed_to_native.method = invoke;
7779 g_assert (!sig->hasthis);
7780 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7782 res = mono_mb_create_and_cache_full (cache, invoke,
7783 mb, csig, csig->param_count + 16,
7787 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7789 mono_metadata_free_marshal_spec (mspecs [i]);
7797 * mono_marshal_emit_managed_wrapper:
7799 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7800 * the delegate which wraps the managed method to be called. For closed delegates,
7801 * it could have fewer parameters than the method it wraps.
7802 * THIS_LOC is the memory location where the target of the delegate is stored.
7805 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7808 MonoMethodSignature *sig, *csig;
7814 /* we first do all conversions */
7815 for (i = 0; i < sig->param_count; i ++) {
7816 MonoType *t = sig->params [i];
7819 case MONO_TYPE_OBJECT:
7820 case MONO_TYPE_CLASS:
7821 case MONO_TYPE_VALUETYPE:
7822 case MONO_TYPE_ARRAY:
7823 case MONO_TYPE_SZARRAY:
7824 case MONO_TYPE_STRING:
7825 case MONO_TYPE_BOOLEAN:
7826 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7830 if (!sig->ret->byref) {
7831 switch (sig->ret->type) {
7832 case MONO_TYPE_STRING:
7833 csig->ret = &mono_defaults.int_class->byval_arg;
7840 MonoMethodSignature *sig, *csig;
7841 MonoExceptionClause *clause;
7844 gboolean closed = FALSE;
7849 /* allocate local 0 (pointer) src_ptr */
7850 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7851 /* allocate local 1 (pointer) dst_ptr */
7852 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7853 /* allocate local 2 (boolean) delete_old */
7854 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7856 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7857 /* Closed delegate */
7858 g_assert (sig->param_count == invoke_sig->param_count + 1);
7860 /* Use a new signature without the first argument */
7861 sig = mono_metadata_signature_dup (sig);
7862 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7863 sig->param_count --;
7866 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7867 /* allocate local 3 to store the return value */
7868 mono_mb_add_local (mb, sig->ret);
7873 * mono_jit_attach ();
7877 * ret = method (...);
7879 * mono_jit_detach ();
7885 if (mono_threads_is_coop_enabled ()) {
7886 clause = g_new0 (MonoExceptionClause, 1);
7887 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7890 mono_mb_emit_icon (mb, 0);
7891 mono_mb_emit_stloc (mb, 2);
7893 if (mono_threads_is_coop_enabled ()) {
7895 clause->try_offset = mono_mb_get_label (mb);
7899 * Might need to attach the thread to the JIT or change the
7900 * domain for the callback.
7902 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7904 * mono_jit_attach ();
7906 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7907 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7909 /* <interrupt check> */
7910 emit_thread_interrupt_checkpoint (mb);
7912 /* we first do all conversions */
7913 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7914 for (i = 0; i < sig->param_count; i ++) {
7915 MonoType *t = sig->params [i];
7918 case MONO_TYPE_OBJECT:
7919 case MONO_TYPE_CLASS:
7920 case MONO_TYPE_VALUETYPE:
7921 case MONO_TYPE_ARRAY:
7922 case MONO_TYPE_SZARRAY:
7923 case MONO_TYPE_STRING:
7924 case MONO_TYPE_BOOLEAN:
7925 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7935 if (target_handle) {
7936 mono_mb_emit_icon (mb, (gint32)target_handle);
7937 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7940 g_assert_not_reached ();
7942 } else if (closed) {
7943 mono_mb_emit_icon (mb, (gint32)target_handle);
7944 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7947 for (i = 0; i < sig->param_count; i++) {
7948 MonoType *t = sig->params [i];
7950 if (tmp_locals [i]) {
7952 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7954 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7957 mono_mb_emit_ldarg (mb, i);
7960 /* ret = method (...) */
7961 mono_mb_emit_managed_call (mb, method, NULL);
7963 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7964 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7965 } else if (!sig->ret->byref) {
7966 switch (sig->ret->type) {
7967 case MONO_TYPE_VOID:
7969 case MONO_TYPE_BOOLEAN:
7972 case MONO_TYPE_CHAR:
7984 case MONO_TYPE_OBJECT:
7985 mono_mb_emit_stloc (mb, 3);
7987 case MONO_TYPE_STRING:
7988 csig->ret = &mono_defaults.int_class->byval_arg;
7989 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7991 case MONO_TYPE_VALUETYPE:
7992 case MONO_TYPE_CLASS:
7993 case MONO_TYPE_SZARRAY:
7994 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7997 g_warning ("return type 0x%02x unknown", sig->ret->type);
7998 g_assert_not_reached ();
8001 mono_mb_emit_stloc (mb, 3);
8004 /* Convert byref arguments back */
8005 for (i = 0; i < sig->param_count; i ++) {
8006 MonoType *t = sig->params [i];
8007 MonoMarshalSpec *spec = mspecs [i + 1];
8009 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8010 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8012 else if (t->byref) {
8014 case MONO_TYPE_CLASS:
8015 case MONO_TYPE_VALUETYPE:
8016 case MONO_TYPE_OBJECT:
8017 case MONO_TYPE_STRING:
8018 case MONO_TYPE_BOOLEAN:
8019 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8025 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8026 /* The [Out] information is encoded in the delegate signature */
8028 case MONO_TYPE_SZARRAY:
8029 case MONO_TYPE_CLASS:
8030 case MONO_TYPE_VALUETYPE:
8031 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8034 g_assert_not_reached ();
8039 if (mono_threads_is_coop_enabled ()) {
8040 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8043 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8044 clause->handler_offset = mono_mb_get_label (mb);
8048 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8050 * mono_jit_detach ();
8052 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8053 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8055 if (mono_threads_is_coop_enabled ()) {
8056 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8058 /* } [endfinally] */
8059 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8061 mono_mb_patch_branch (mb, leave_pos);
8065 if (m->retobj_var) {
8066 mono_mb_emit_ldloc (mb, m->retobj_var);
8067 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8068 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8071 if (!MONO_TYPE_IS_VOID(sig->ret))
8072 mono_mb_emit_ldloc (mb, 3);
8073 mono_mb_emit_byte (mb, CEE_RET);
8076 if (mono_threads_is_coop_enabled ()) {
8077 mono_mb_set_clauses (mb, 1, clause);
8086 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8088 MonoMethodSignature *sig;
8093 * Under windows, delegates passed to native code must use the STDCALL
8094 * calling convention.
8096 csig->call_convention = MONO_CALL_STDCALL;
8099 sig = mono_method_signature (method);
8101 /* Change default calling convention if needed */
8102 /* Why is this a modopt ? */
8103 if (sig->ret && sig->ret->num_mods) {
8104 for (i = 0; i < sig->ret->num_mods; ++i) {
8106 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8107 g_assert (mono_error_ok (&error));
8108 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8109 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8110 csig->call_convention = MONO_CALL_C;
8111 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8112 csig->call_convention = MONO_CALL_STDCALL;
8113 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8114 csig->call_convention = MONO_CALL_FASTCALL;
8115 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8116 csig->call_convention = MONO_CALL_THISCALL;
8123 * generates IL code to call managed methods from unmanaged code
8124 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8127 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8130 MonoMethodSignature *sig, *csig, *invoke_sig;
8131 MonoMethodBuilder *mb;
8132 MonoMethod *res, *invoke;
8133 MonoMarshalSpec **mspecs;
8134 MonoMethodPInvoke piinfo;
8137 EmitMarshalContext m;
8139 g_assert (method != NULL);
8140 g_assert (!mono_method_signature (method)->pinvoke);
8143 * FIXME: Should cache the method+delegate type pair, since the same method
8144 * could be called with different delegates, thus different marshalling
8147 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8149 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8152 invoke = mono_get_delegate_invoke (delegate_klass);
8153 invoke_sig = mono_method_signature (invoke);
8155 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8156 mono_method_get_marshal_info (invoke, mspecs);
8158 sig = mono_method_signature (method);
8160 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8162 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8163 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8165 /* we copy the signature, so that we can modify it */
8167 /* Need to free this later */
8168 csig = mono_metadata_signature_dup (invoke_sig);
8170 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8174 memset (&m, 0, sizeof (m));
8180 m.image = method->klass->image;
8182 mono_marshal_set_callconv_from_modopt (invoke, csig);
8184 /* The attribute is only available in Net 2.0 */
8185 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8186 MonoCustomAttrInfo *cinfo;
8187 MonoCustomAttrEntry *attr;
8190 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8191 * contents of the attribute without constructing it, as that might not be
8192 * possible when running in cross-compiling mode.
8194 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8195 mono_error_assert_ok (&error);
8198 for (i = 0; i < cinfo->num_attrs; ++i) {
8199 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8200 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8201 attr = &cinfo->attrs [i];
8207 MonoArray *typed_args, *named_args;
8208 CattrNamedArg *arginfo;
8212 MonoBoolean set_last_error = 0;
8215 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8216 g_assert (mono_error_ok (&error));
8217 g_assert (mono_array_length (typed_args) == 1);
8220 o = mono_array_get (typed_args, MonoObject*, 0);
8221 call_conv = *(gint32*)mono_object_unbox (o);
8224 for (i = 0; i < mono_array_length (named_args); ++i) {
8225 CattrNamedArg *narg = &arginfo [i];
8227 o = mono_array_get (named_args, MonoObject*, i);
8229 g_assert (narg->field);
8230 if (!strcmp (narg->field->name, "CharSet")) {
8231 charset = *(gint32*)mono_object_unbox (o);
8232 } else if (!strcmp (narg->field->name, "SetLastError")) {
8233 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8234 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8235 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8236 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8237 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8239 g_assert_not_reached ();
8245 memset (&piinfo, 0, sizeof (piinfo));
8247 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8249 csig->call_convention = call_conv - 1;
8252 if (cinfo && !cinfo->cached)
8253 mono_custom_attrs_free (cinfo);
8256 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8258 if (!target_handle) {
8261 // FIXME: Associate it with the method+delegate_klass pair
8262 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8263 info->d.native_to_managed.method = method;
8264 info->d.native_to_managed.klass = delegate_klass;
8266 res = mono_mb_create_and_cache_full (cache, method,
8267 mb, csig, sig->param_count + 16,
8273 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8277 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8279 mono_metadata_free_marshal_spec (mspecs [i]);
8282 /* mono_method_print_code (res); */
8288 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8292 MonoMethodSignature *sig;
8293 MonoMethodBuilder *mb;
8298 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8300 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8303 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8304 MonoMethodSignature *csig;
8305 MonoMarshalSpec **mspecs;
8306 EmitMarshalContext m;
8308 sig = mono_method_signature (method);
8309 g_assert (!sig->hasthis);
8311 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8312 mono_method_get_marshal_info (method, mspecs);
8314 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8315 csig = mono_metadata_signature_dup_full (image, sig);
8319 memset (&m, 0, sizeof (m));
8327 mono_marshal_set_callconv_from_modopt (method, csig);
8329 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8331 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8336 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8339 for (i = sig->param_count; i >= 0; i--)
8341 mono_metadata_free_marshal_spec (mspecs [i]);
8344 return mono_compile_method (method);
8347 sig = mono_method_signature (method);
8348 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8350 param_count = sig->param_count + sig->hasthis;
8352 for (i = 0; i < param_count; i++)
8353 mono_mb_emit_ldarg (mb, i);
8355 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8356 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8358 mono_mb_emit_op (mb, CEE_CALL, method);
8359 mono_mb_emit_byte (mb, CEE_RET);
8364 method = mono_mb_create (mb, sig, param_count, NULL);
8367 return mono_compile_method (method);
8373 * The code directly following this is the cache hit, value positive branch
8375 * This function takes a new method builder with 0 locals and adds two locals
8376 * to create multiple out-branches and the fall through state of having the object
8377 * on the stack after a cache miss
8380 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8381 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8382 MonoMethodBuilder *mb)
8386 /* allocate local 0 (pointer) obj_vtable */
8387 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8388 /* allocate local 1 (pointer) cached_vtable */
8389 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8392 mono_mb_emit_ldarg (mb, obj_arg_position);
8393 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8395 /*obj_vtable = obj->vtable;*/
8396 mono_mb_emit_ldarg (mb, obj_arg_position);
8397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8398 mono_mb_emit_byte (mb, CEE_LDIND_I);
8399 mono_mb_emit_stloc (mb, 0);
8401 /* cached_vtable = *cache*/
8402 mono_mb_emit_ldarg (mb, cache_arg_position);
8403 mono_mb_emit_byte (mb, CEE_LDIND_I);
8404 mono_mb_emit_stloc (mb, 1);
8406 mono_mb_emit_ldloc (mb, 1);
8407 mono_mb_emit_byte (mb, CEE_LDC_I4);
8408 mono_mb_emit_i4 (mb, ~0x1);
8409 mono_mb_emit_byte (mb, CEE_CONV_I);
8410 mono_mb_emit_byte (mb, CEE_AND);
8411 mono_mb_emit_ldloc (mb, 0);
8412 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8413 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8415 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8416 mono_mb_emit_ldloc (mb, 1);
8417 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8418 mono_mb_emit_byte (mb, CEE_CONV_U);
8419 mono_mb_emit_byte (mb, CEE_AND);
8420 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8421 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8424 mono_mb_patch_branch (mb, cache_miss_pos);
8427 mono_mb_emit_ldarg (mb, obj_arg_position);
8428 mono_mb_emit_ldarg (mb, class_arg_position);
8429 mono_mb_emit_ldarg (mb, cache_arg_position);
8430 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8433 #endif /* DISABLE_JIT */
8436 * This does the equivalent of mono_object_castclass_with_cache.
8437 * The wrapper info for the wrapper is a WrapperInfo structure.
8440 mono_marshal_get_castclass_with_cache (void)
8442 static MonoMethod *cached;
8444 MonoMethodBuilder *mb;
8445 MonoMethodSignature *sig;
8446 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8449 const int obj_arg_position = 0;
8450 const int class_arg_position = 1;
8451 const int cache_arg_position = 2;
8456 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8457 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8458 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8459 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8460 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8461 sig->ret = &mono_defaults.object_class->byval_arg;
8465 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8466 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8467 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8470 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8471 mono_mb_emit_ldarg (mb, obj_arg_position);
8472 mono_mb_emit_byte (mb, CEE_RET);
8475 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8476 mono_mb_patch_branch (mb, invalid_cast_pos);
8477 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8480 mono_mb_patch_branch (mb, return_null_pos);
8481 mono_mb_emit_byte (mb, CEE_LDNULL);
8482 mono_mb_emit_byte (mb, CEE_RET);
8483 #endif /* DISABLE_JIT */
8485 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8486 res = mono_mb_create (mb, sig, 8, info);
8489 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8490 mono_free_method (res);
8491 mono_metadata_free_method_signature (sig);
8499 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8501 MonoObject *isinst = mono_object_isinst (obj, klass);
8503 #ifndef DISABLE_REMOTING
8504 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8508 uintptr_t cache_update = (uintptr_t)obj->vtable;
8510 cache_update = cache_update | 0x1;
8512 *cache = cache_update;
8518 * This does the equivalent of mono_object_isinst_with_cache.
8519 * The wrapper info for the wrapper is a WrapperInfo structure.
8522 mono_marshal_get_isinst_with_cache (void)
8524 static MonoMethod *cached;
8526 MonoMethodBuilder *mb;
8527 MonoMethodSignature *sig;
8528 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8531 const int obj_arg_position = 0;
8532 const int class_arg_position = 1;
8533 const int cache_arg_position = 2;
8538 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8539 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8541 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8543 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8545 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8546 sig->ret = &mono_defaults.object_class->byval_arg;
8550 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8551 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8552 // Return the object gotten via the slow path.
8553 mono_mb_emit_byte (mb, CEE_RET);
8556 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8557 mono_mb_patch_branch (mb, return_null_pos);
8558 mono_mb_emit_byte (mb, CEE_LDNULL);
8559 mono_mb_emit_byte (mb, CEE_RET);
8562 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8563 mono_mb_emit_ldarg (mb, 0);
8564 mono_mb_emit_byte (mb, CEE_RET);
8567 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8568 res = mono_mb_create (mb, sig, 8, info);
8571 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8572 mono_free_method (res);
8573 mono_metadata_free_method_signature (sig);
8581 * mono_marshal_get_isinst:
8582 * @klass: the type of the field
8584 * This method generates a function which can be used to check if an object is
8585 * an instance of the given type, icluding the case where the object is a proxy.
8586 * The generated function has the following signature:
8587 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8590 mono_marshal_get_isinst (MonoClass *klass)
8592 static MonoMethodSignature *isint_sig = NULL;
8596 int pos_was_ok, pos_end;
8597 #ifndef DISABLE_REMOTING
8598 int pos_end2, pos_failed;
8601 MonoMethodBuilder *mb;
8603 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8604 if ((res = mono_marshal_find_in_cache (cache, klass)))
8608 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8609 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8610 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8611 isint_sig->pinvoke = 0;
8614 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8615 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8618 mb->method->save_lmf = 1;
8621 /* check if the object is a proxy that needs special cast */
8622 mono_mb_emit_ldarg (mb, 0);
8623 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8624 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8626 /* The result of MONO_CISINST can be:
8627 0) the type check succeeded
8628 1) the type check did not succeed
8629 2) a CanCastTo call is needed */
8630 #ifndef DISABLE_REMOTING
8631 mono_mb_emit_byte (mb, CEE_DUP);
8632 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8634 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8635 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8637 /* get the real proxy from the transparent proxy*/
8639 mono_mb_emit_ldarg (mb, 0);
8640 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8641 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8645 mono_mb_patch_branch (mb, pos_failed);
8646 mono_mb_emit_byte (mb, CEE_LDNULL);
8647 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8651 mono_mb_patch_branch (mb, pos_was_ok);
8652 mono_mb_emit_byte (mb, CEE_POP);
8653 mono_mb_emit_ldarg (mb, 0);
8657 mono_mb_patch_branch (mb, pos_end);
8658 mono_mb_patch_branch (mb, pos_end2);
8659 mono_mb_emit_byte (mb, CEE_RET);
8661 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8665 mono_mb_emit_byte (mb, CEE_LDNULL);
8666 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8670 mono_mb_patch_branch (mb, pos_was_ok);
8671 mono_mb_emit_ldarg (mb, 0);
8675 mono_mb_patch_branch (mb, pos_end);
8676 mono_mb_emit_byte (mb, CEE_RET);
8677 #endif /* DISABLE_REMOTING */
8678 #endif /* DISABLE_JIT */
8680 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8681 info->d.proxy.klass = klass;
8682 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8689 * mono_marshal_get_castclass:
8690 * @klass: the type of the field
8692 * This method generates a function which can be used to cast an object to
8693 * an instance of the given type, icluding the case where the object is a proxy.
8694 * The generated function has the following signature:
8695 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8696 * The wrapper info for the wrapper is a WrapperInfo structure.
8699 mono_marshal_get_castclass (MonoClass *klass)
8701 static MonoMethodSignature *castclass_sig = NULL;
8704 #ifndef DISABLE_REMOTING
8705 int pos_was_ok, pos_was_ok2;
8708 MonoMethodBuilder *mb;
8711 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8712 if ((res = mono_marshal_find_in_cache (cache, klass)))
8715 if (!castclass_sig) {
8716 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8717 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8718 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8719 castclass_sig->pinvoke = 0;
8722 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8723 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8726 mb->method->save_lmf = 1;
8729 /* check if the object is a proxy that needs special cast */
8730 mono_mb_emit_ldarg (mb, 0);
8731 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8732 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8734 /* The result of MONO_CCASTCLASS can be:
8735 0) the cast is valid
8736 1) cast of unknown proxy type
8737 or an exception if the cast is is invalid
8739 #ifndef DISABLE_REMOTING
8740 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8742 /* get the real proxy from the transparent proxy*/
8744 mono_mb_emit_ldarg (mb, 0);
8745 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8746 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8749 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8752 mono_mb_patch_branch (mb, pos_was_ok);
8753 mono_mb_patch_branch (mb, pos_was_ok2);
8755 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8756 mono_mb_emit_byte (mb, CEE_POP);
8757 #endif /* DISABLE_REMOTING */
8759 mono_mb_emit_ldarg (mb, 0);
8762 mono_mb_emit_byte (mb, CEE_RET);
8763 #endif /* DISABLE_JIT */
8765 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8767 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8775 * mono_marshal_get_struct_to_ptr:
8778 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8779 * The wrapper info for the wrapper is a WrapperInfo structure.
8782 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8784 MonoMethodBuilder *mb;
8785 static MonoMethod *stoptr = NULL;
8789 g_assert (klass != NULL);
8791 mono_marshal_load_type_info (klass);
8793 if (klass->marshal_info->str_to_ptr)
8794 return klass->marshal_info->str_to_ptr;
8797 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8800 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8803 if (klass->blittable) {
8804 mono_mb_emit_byte (mb, CEE_LDARG_1);
8805 mono_mb_emit_byte (mb, CEE_LDARG_0);
8806 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8807 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8808 mono_mb_emit_byte (mb, CEE_PREFIX1);
8809 mono_mb_emit_byte (mb, CEE_CPBLK);
8812 /* allocate local 0 (pointer) src_ptr */
8813 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8814 /* allocate local 1 (pointer) dst_ptr */
8815 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8816 /* allocate local 2 (boolean) delete_old */
8817 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8818 mono_mb_emit_byte (mb, CEE_LDARG_2);
8819 mono_mb_emit_stloc (mb, 2);
8821 /* initialize src_ptr to point to the start of object data */
8822 mono_mb_emit_byte (mb, CEE_LDARG_0);
8823 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8824 mono_mb_emit_stloc (mb, 0);
8826 /* initialize dst_ptr */
8827 mono_mb_emit_byte (mb, CEE_LDARG_1);
8828 mono_mb_emit_stloc (mb, 1);
8830 emit_struct_conv (mb, klass, FALSE);
8833 mono_mb_emit_byte (mb, CEE_RET);
8835 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8836 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8839 mono_marshal_lock ();
8840 if (!klass->marshal_info->str_to_ptr)
8841 klass->marshal_info->str_to_ptr = res;
8843 res = klass->marshal_info->str_to_ptr;
8844 mono_marshal_unlock ();
8849 * mono_marshal_get_ptr_to_struct:
8852 * generates IL code for PtrToStructure (IntPtr src, object structure)
8853 * The wrapper info for the wrapper is a WrapperInfo structure.
8856 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8858 MonoMethodBuilder *mb;
8859 static MonoMethodSignature *ptostr = NULL;
8863 g_assert (klass != NULL);
8865 mono_marshal_load_type_info (klass);
8867 if (klass->marshal_info->ptr_to_str)
8868 return klass->marshal_info->ptr_to_str;
8871 MonoMethodSignature *sig;
8873 /* Create the signature corresponding to
8874 static void PtrToStructure (IntPtr ptr, object structure);
8875 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8876 sig = mono_create_icall_signature ("void ptr object");
8877 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8879 mono_memory_barrier ();
8883 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8886 if (klass->blittable) {
8887 mono_mb_emit_byte (mb, CEE_LDARG_1);
8888 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8889 mono_mb_emit_byte (mb, CEE_LDARG_0);
8890 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8891 mono_mb_emit_byte (mb, CEE_PREFIX1);
8892 mono_mb_emit_byte (mb, CEE_CPBLK);
8895 /* allocate local 0 (pointer) src_ptr */
8896 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8897 /* allocate local 1 (pointer) dst_ptr */
8898 mono_mb_add_local (mb, &klass->this_arg);
8900 /* initialize src_ptr to point to the start of object data */
8901 mono_mb_emit_byte (mb, CEE_LDARG_0);
8902 mono_mb_emit_stloc (mb, 0);
8904 /* initialize dst_ptr */
8905 mono_mb_emit_byte (mb, CEE_LDARG_1);
8906 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8907 mono_mb_emit_stloc (mb, 1);
8909 emit_struct_conv (mb, klass, TRUE);
8912 mono_mb_emit_byte (mb, CEE_RET);
8914 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8915 res = mono_mb_create (mb, ptostr, 0, info);
8918 mono_marshal_lock ();
8919 if (!klass->marshal_info->ptr_to_str)
8920 klass->marshal_info->ptr_to_str = res;
8922 res = klass->marshal_info->ptr_to_str;
8923 mono_marshal_unlock ();
8928 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8929 * This is used to avoid infinite recursion since it is hard to determine where to
8930 * replace a method with its synchronized wrapper, and where not.
8931 * The runtime should execute METHOD instead of the wrapper.
8932 * The wrapper info for the wrapper is a WrapperInfo structure.
8935 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8937 MonoMethodBuilder *mb;
8939 MonoMethodSignature *sig;
8941 MonoGenericContext *ctx = NULL;
8942 MonoGenericContainer *container = NULL;
8944 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8945 ctx = &((MonoMethodInflated*)method)->context;
8946 method = ((MonoMethodInflated*)method)->declaring;
8947 container = mono_method_get_generic_container (method);
8949 container = method->klass->generic_container;
8950 g_assert (container);
8953 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8955 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8956 mono_mb_emit_byte (mb, CEE_RET);
8958 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8960 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8961 info->d.synchronized_inner.method = method;
8962 res = mono_mb_create (mb, sig, 0, info);
8966 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8967 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8973 * generates IL code for the synchronized wrapper: the generated method
8974 * calls METHOD while locking 'this' or the parent type.
8977 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8979 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8980 MonoMethodSignature *sig;
8981 MonoExceptionClause *clause;
8982 MonoMethodBuilder *mb;
8986 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8987 MonoGenericContext *ctx = NULL;
8988 MonoMethod *orig_method = NULL;
8989 MonoGenericContainer *container = NULL;
8993 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8996 /* FIXME: Support generic methods too */
8997 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8998 orig_method = method;
8999 ctx = &((MonoMethodInflated*)method)->context;
9000 method = ((MonoMethodInflated*)method)->declaring;
9001 container = mono_method_get_generic_container (method);
9003 container = method->klass->generic_container;
9004 g_assert (container);
9011 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9012 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9016 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9017 if ((res = mono_marshal_find_in_cache (cache, method)))
9021 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9024 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9026 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9027 info->d.synchronized.method = method;
9030 mb->skip_visibility = 1;
9032 if (!MONO_TYPE_IS_VOID (sig->ret))
9033 ret_local = mono_mb_add_local (mb, sig->ret);
9036 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9037 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9039 /* This will throw the type load exception when the wrapper is compiled */
9040 mono_mb_emit_byte (mb, CEE_LDNULL);
9041 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9042 mono_mb_emit_byte (mb, CEE_POP);
9044 if (!MONO_TYPE_IS_VOID (sig->ret))
9045 mono_mb_emit_ldloc (mb, ret_local);
9046 mono_mb_emit_byte (mb, CEE_RET);
9049 res = mono_mb_create_and_cache_full (cache, method,
9050 mb, sig, sig->param_count + 16, info, NULL);
9058 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9059 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9061 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9062 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9065 mono_marshal_lock ();
9067 if (!enter_method) {
9068 MonoMethodDesc *desc;
9070 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9071 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9072 g_assert (enter_method);
9073 mono_method_desc_free (desc);
9075 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9076 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9077 g_assert (exit_method);
9078 mono_method_desc_free (desc);
9080 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9081 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9082 g_assert (gettypefromhandle_method);
9083 mono_method_desc_free (desc);
9086 mono_marshal_unlock ();
9089 /* Push this or the type object */
9090 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9091 /* We have special handling for this in the JIT */
9092 int index = mono_mb_add_data (mb, method->klass);
9093 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9094 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9095 mono_mb_emit_i4 (mb, index);
9097 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9100 mono_mb_emit_ldarg (mb, 0);
9101 mono_mb_emit_stloc (mb, this_local);
9103 /* Call Monitor::Enter() */
9104 mono_mb_emit_ldloc (mb, this_local);
9105 mono_mb_emit_ldloc_addr (mb, taken_local);
9106 mono_mb_emit_managed_call (mb, enter_method, NULL);
9108 clause->try_offset = mono_mb_get_label (mb);
9110 /* Call the method */
9112 mono_mb_emit_ldarg (mb, 0);
9113 for (i = 0; i < sig->param_count; i++)
9114 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9118 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9119 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9121 mono_mb_emit_managed_call (mb, method, NULL);
9124 if (!MONO_TYPE_IS_VOID (sig->ret))
9125 mono_mb_emit_stloc (mb, ret_local);
9127 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9129 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9130 clause->handler_offset = mono_mb_get_label (mb);
9132 /* Call Monitor::Exit() if needed */
9133 mono_mb_emit_ldloc (mb, taken_local);
9134 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9135 mono_mb_emit_ldloc (mb, this_local);
9136 mono_mb_emit_managed_call (mb, exit_method, NULL);
9137 mono_mb_patch_branch (mb, pos2);
9138 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9140 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9142 mono_mb_patch_branch (mb, pos);
9143 if (!MONO_TYPE_IS_VOID (sig->ret))
9144 mono_mb_emit_ldloc (mb, ret_local);
9145 mono_mb_emit_byte (mb, CEE_RET);
9147 mono_mb_set_clauses (mb, 1, clause);
9152 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9153 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9155 res = mono_mb_create_and_cache_full (cache, method,
9156 mb, sig, sig->param_count + 16, info, NULL);
9165 * the returned method calls 'method' unboxing the this argument
9168 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9170 MonoMethodSignature *sig = mono_method_signature (method);
9172 MonoMethodBuilder *mb;
9177 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9179 if ((res = mono_marshal_find_in_cache (cache, method)))
9182 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9184 g_assert (sig->hasthis);
9187 mono_mb_emit_ldarg (mb, 0);
9188 mono_mb_emit_icon (mb, sizeof (MonoObject));
9189 mono_mb_emit_byte (mb, CEE_ADD);
9190 for (i = 0; i < sig->param_count; ++i)
9191 mono_mb_emit_ldarg (mb, i + 1);
9192 mono_mb_emit_managed_call (mb, method, NULL);
9193 mono_mb_emit_byte (mb, CEE_RET);
9196 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9197 info->d.unbox.method = method;
9199 res = mono_mb_create_and_cache_full (cache, method,
9200 mb, sig, sig->param_count + 16, info, NULL);
9203 /* mono_method_print_code (res); */
9209 STELEMREF_OBJECT, /*no check at all*/
9210 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9211 STELEMREF_CLASS, /*only the klass->parents check*/
9212 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9213 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9214 STELEMREF_KIND_COUNT
9217 static const char *strelemref_wrapper_name[] = {
9218 "object", "sealed_class", "class", "interface", "complex"
9222 is_monomorphic_array (MonoClass *klass)
9224 MonoClass *element_class;
9225 if (klass->rank != 1)
9228 element_class = klass->element_class;
9229 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9233 get_virtual_stelemref_kind (MonoClass *element_class)
9235 if (element_class == mono_defaults.object_class)
9236 return STELEMREF_OBJECT;
9237 if (is_monomorphic_array (element_class))
9238 return STELEMREF_SEALED_CLASS;
9239 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9240 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9241 #ifdef COMPRESSED_INTERFACE_BITMAP
9242 return STELEMREF_COMPLEX;
9244 return STELEMREF_INTERFACE;
9246 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9247 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9248 return STELEMREF_COMPLEX;
9249 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9250 return STELEMREF_SEALED_CLASS;
9251 return STELEMREF_CLASS;
9257 load_array_element_address (MonoMethodBuilder *mb)
9259 mono_mb_emit_ldarg (mb, 0);
9260 mono_mb_emit_ldarg (mb, 1);
9261 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9265 load_array_class (MonoMethodBuilder *mb, int aklass)
9267 mono_mb_emit_ldarg (mb, 0);
9268 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9269 mono_mb_emit_byte (mb, CEE_LDIND_I);
9270 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9271 mono_mb_emit_byte (mb, CEE_LDIND_I);
9272 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9273 mono_mb_emit_byte (mb, CEE_LDIND_I);
9274 mono_mb_emit_stloc (mb, aklass);
9278 load_value_class (MonoMethodBuilder *mb, int vklass)
9280 mono_mb_emit_ldarg (mb, 2);
9281 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9282 mono_mb_emit_byte (mb, CEE_LDIND_I);
9283 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9284 mono_mb_emit_byte (mb, CEE_LDIND_I);
9285 mono_mb_emit_stloc (mb, vklass);
9291 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9293 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9294 printf ("slow vstore of %s\n", name);
9300 * The wrapper info for the wrapper is a WrapperInfo structure.
9303 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9304 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9305 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9306 * - Add a case for arrays of arrays.
9309 get_virtual_stelemref_wrapper (int kind)
9311 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9312 static MonoMethodSignature *signature;
9313 MonoMethodBuilder *mb;
9316 const char *param_names [16];
9318 int aklass, vklass, vtable, uiid;
9319 int array_slot_addr;
9322 if (cached_methods [kind])
9323 return cached_methods [kind];
9325 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9326 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9330 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9332 /* void this::stelemref (size_t idx, void* value) */
9333 sig->ret = &mono_defaults.void_class->byval_arg;
9334 sig->hasthis = TRUE;
9335 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9336 sig->params [1] = &mono_defaults.object_class->byval_arg;
9341 param_names [0] = "index";
9342 param_names [1] = "value";
9343 mono_mb_set_param_names (mb, param_names);
9345 /*For now simply call plain old stelemref*/
9347 case STELEMREF_OBJECT:
9348 /* ldelema (implicit bound check) */
9349 load_array_element_address (mb);
9351 mono_mb_emit_ldarg (mb, 2);
9352 mono_mb_emit_byte (mb, CEE_STIND_REF);
9353 mono_mb_emit_byte (mb, CEE_RET);
9356 case STELEMREF_COMPLEX:
9358 <ldelema (bound check)>
9361 if (!mono_object_isinst (value, aklass))
9365 *array_slot_addr = value;
9368 throw new ArrayTypeMismatchException ();
9371 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9372 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9376 /*Use this to debug/record stores that are going thru the slow path*/
9377 MonoMethodSignature *csig;
9378 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9379 csig->ret = &mono_defaults.void_class->byval_arg;
9380 csig->params [0] = &mono_defaults.object_class->byval_arg;
9381 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9382 csig->params [2] = &mono_defaults.object_class->byval_arg;
9383 mono_mb_emit_ldarg (mb, 0);
9384 mono_mb_emit_ldarg (mb, 1);
9385 mono_mb_emit_ldarg (mb, 2);
9386 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9390 /* ldelema (implicit bound check) */
9391 load_array_element_address (mb);
9392 mono_mb_emit_stloc (mb, array_slot_addr);
9394 /* if (!value) goto do_store */
9395 mono_mb_emit_ldarg (mb, 2);
9396 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9398 /* aklass = array->vtable->klass->element_class */
9399 load_array_class (mb, aklass);
9401 /*if (mono_object_isinst (value, aklass)) */
9402 mono_mb_emit_ldarg (mb, 2);
9403 mono_mb_emit_ldloc (mb, aklass);
9404 mono_mb_emit_icall (mb, mono_object_isinst);
9405 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9408 mono_mb_patch_branch (mb, b1);
9409 mono_mb_emit_ldloc (mb, array_slot_addr);
9410 mono_mb_emit_ldarg (mb, 2);
9411 mono_mb_emit_byte (mb, CEE_STIND_REF);
9412 mono_mb_emit_byte (mb, CEE_RET);
9415 mono_mb_patch_branch (mb, b2);
9417 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9420 case STELEMREF_SEALED_CLASS:
9422 <ldelema (bound check)>
9426 aklass = array->vtable->klass->element_class;
9427 vklass = value->vtable->klass;
9429 if (vklass != aklass)
9433 *array_slot_addr = value;
9436 throw new ArrayTypeMismatchException ();
9438 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9439 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9440 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9443 /* ldelema (implicit bound check) */
9444 load_array_element_address (mb);
9445 mono_mb_emit_stloc (mb, array_slot_addr);
9447 /* if (!value) goto do_store */
9448 mono_mb_emit_ldarg (mb, 2);
9449 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9451 /* aklass = array->vtable->klass->element_class */
9452 load_array_class (mb, aklass);
9454 /* vklass = value->vtable->klass */
9455 load_value_class (mb, vklass);
9457 /*if (vklass != aklass) goto do_exception; */
9458 mono_mb_emit_ldloc (mb, aklass);
9459 mono_mb_emit_ldloc (mb, vklass);
9460 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9463 mono_mb_patch_branch (mb, b1);
9464 mono_mb_emit_ldloc (mb, array_slot_addr);
9465 mono_mb_emit_ldarg (mb, 2);
9466 mono_mb_emit_byte (mb, CEE_STIND_REF);
9467 mono_mb_emit_byte (mb, CEE_RET);
9470 mono_mb_patch_branch (mb, b2);
9471 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9474 case STELEMREF_CLASS:
9477 <ldelema (bound check)>
9481 aklass = array->vtable->klass->element_class;
9482 vklass = value->vtable->klass;
9484 if (vklass->idepth < aklass->idepth)
9487 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9491 *array_slot_addr = value;
9495 throw new ArrayTypeMismatchException ();
9497 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9498 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9499 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9501 /* ldelema (implicit bound check) */
9502 load_array_element_address (mb);
9503 mono_mb_emit_stloc (mb, array_slot_addr);
9505 /* if (!value) goto do_store */
9506 mono_mb_emit_ldarg (mb, 2);
9507 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9509 /* aklass = array->vtable->klass->element_class */
9510 load_array_class (mb, aklass);
9512 /* vklass = value->vtable->klass */
9513 load_value_class (mb, vklass);
9515 /*if (mono_object_isinst (value, aklass)) */
9516 mono_mb_emit_ldarg (mb, 2);
9517 mono_mb_emit_ldloc (mb, aklass);
9518 mono_mb_emit_icall (mb, mono_object_isinst);
9519 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9521 /* if (vklass->idepth < aklass->idepth) goto failue */
9522 mono_mb_emit_ldloc (mb, vklass);
9523 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9524 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9526 mono_mb_emit_ldloc (mb, aklass);
9527 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9528 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9530 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9532 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9533 mono_mb_emit_ldloc (mb, vklass);
9534 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9535 mono_mb_emit_byte (mb, CEE_LDIND_I);
9537 mono_mb_emit_ldloc (mb, aklass);
9538 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9539 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9540 mono_mb_emit_icon (mb, 1);
9541 mono_mb_emit_byte (mb, CEE_SUB);
9542 mono_mb_emit_icon (mb, sizeof (void*));
9543 mono_mb_emit_byte (mb, CEE_MUL);
9544 mono_mb_emit_byte (mb, CEE_ADD);
9545 mono_mb_emit_byte (mb, CEE_LDIND_I);
9547 mono_mb_emit_ldloc (mb, aklass);
9548 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9551 mono_mb_patch_branch (mb, b1);
9552 mono_mb_emit_ldloc (mb, array_slot_addr);
9553 mono_mb_emit_ldarg (mb, 2);
9554 mono_mb_emit_byte (mb, CEE_STIND_REF);
9555 mono_mb_emit_byte (mb, CEE_RET);
9558 mono_mb_patch_branch (mb, b2);
9559 mono_mb_patch_branch (mb, b3);
9561 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9564 case STELEMREF_INTERFACE:
9571 klass = array->obj.vtable->klass->element_class;
9573 uiid = klass->interface_id;
9574 if (uiid > vt->max_interface_id)
9576 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9579 mono_array_setref (array, index, value);
9582 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9584 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9585 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9586 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9587 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9589 /* ldelema (implicit bound check) */
9590 load_array_element_address (mb);
9591 mono_mb_emit_stloc (mb, array_slot_addr);
9593 /* if (!value) goto do_store */
9594 mono_mb_emit_ldarg (mb, 2);
9595 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9597 /* klass = array->vtable->klass->element_class */
9598 load_array_class (mb, aklass);
9600 /* vt = value->vtable */
9601 mono_mb_emit_ldarg (mb, 2);
9602 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9603 mono_mb_emit_byte (mb, CEE_LDIND_I);
9604 mono_mb_emit_stloc (mb, vtable);
9606 /* uiid = klass->interface_id; */
9607 mono_mb_emit_ldloc (mb, aklass);
9608 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9609 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9610 mono_mb_emit_stloc (mb, uiid);
9612 /*if (uiid > vt->max_interface_id)*/
9613 mono_mb_emit_ldloc (mb, uiid);
9614 mono_mb_emit_ldloc (mb, vtable);
9615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9616 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9617 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9619 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9621 /*vt->interface_bitmap*/
9622 mono_mb_emit_ldloc (mb, vtable);
9623 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9624 mono_mb_emit_byte (mb, CEE_LDIND_I);
9627 mono_mb_emit_ldloc (mb, uiid);
9628 mono_mb_emit_icon (mb, 3);
9629 mono_mb_emit_byte (mb, CEE_SHR_UN);
9631 /*vt->interface_bitmap [(uiid) >> 3]*/
9632 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9633 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9635 /*(1 << ((uiid)&7)))*/
9636 mono_mb_emit_icon (mb, 1);
9637 mono_mb_emit_ldloc (mb, uiid);
9638 mono_mb_emit_icon (mb, 7);
9639 mono_mb_emit_byte (mb, CEE_AND);
9640 mono_mb_emit_byte (mb, CEE_SHL);
9642 /*bitwise and the whole thing*/
9643 mono_mb_emit_byte (mb, CEE_AND);
9644 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9647 mono_mb_patch_branch (mb, b1);
9648 mono_mb_emit_ldloc (mb, array_slot_addr);
9649 mono_mb_emit_ldarg (mb, 2);
9650 mono_mb_emit_byte (mb, CEE_STIND_REF);
9651 mono_mb_emit_byte (mb, CEE_RET);
9654 mono_mb_patch_branch (mb, b2);
9655 mono_mb_patch_branch (mb, b3);
9656 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9660 mono_mb_emit_ldarg (mb, 0);
9661 mono_mb_emit_ldarg (mb, 1);
9662 mono_mb_emit_ldarg (mb, 2);
9663 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9664 mono_mb_emit_byte (mb, CEE_RET);
9667 #endif /* DISABLE_JIT */
9668 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9669 info->d.virtual_stelemref.kind = kind;
9670 res = mono_mb_create (mb, signature, 4, info);
9671 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9673 mono_marshal_lock ();
9674 if (!cached_methods [kind]) {
9675 cached_methods [kind] = res;
9676 mono_marshal_unlock ();
9678 mono_marshal_unlock ();
9679 mono_free_method (res);
9683 return cached_methods [kind];
9687 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9691 g_assert (array_class->rank == 1);
9692 kind = get_virtual_stelemref_kind (array_class->element_class);
9694 return get_virtual_stelemref_wrapper (kind);
9698 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9703 *nwrappers = STELEMREF_KIND_COUNT;
9704 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9705 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9706 res [i] = get_virtual_stelemref_wrapper (i);
9711 * The wrapper info for the wrapper is a WrapperInfo structure.
9714 mono_marshal_get_stelemref (void)
9716 static MonoMethod* ret = NULL;
9717 MonoMethodSignature *sig;
9718 MonoMethodBuilder *mb;
9721 guint32 b1, b2, b3, b4;
9724 int array_slot_addr;
9729 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9732 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9734 /* void stelemref (void* array, int idx, void* value) */
9735 sig->ret = &mono_defaults.void_class->byval_arg;
9736 sig->params [0] = &mono_defaults.object_class->byval_arg;
9737 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9738 sig->params [2] = &mono_defaults.object_class->byval_arg;
9741 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9742 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9743 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9747 <ldelema (bound check)>
9751 aklass = array->vtable->klass->element_class;
9752 vklass = value->vtable->klass;
9754 if (vklass->idepth < aklass->idepth)
9757 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9761 *array_slot_addr = value;
9765 if (mono_object_isinst (value, aklass))
9768 throw new ArrayTypeMismatchException ();
9771 /* ldelema (implicit bound check) */
9772 mono_mb_emit_ldarg (mb, 0);
9773 mono_mb_emit_ldarg (mb, 1);
9774 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9775 mono_mb_emit_stloc (mb, array_slot_addr);
9777 /* if (!value) goto do_store */
9778 mono_mb_emit_ldarg (mb, 2);
9779 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9781 /* aklass = array->vtable->klass->element_class */
9782 mono_mb_emit_ldarg (mb, 0);
9783 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9784 mono_mb_emit_byte (mb, CEE_LDIND_I);
9785 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9786 mono_mb_emit_byte (mb, CEE_LDIND_I);
9787 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9788 mono_mb_emit_byte (mb, CEE_LDIND_I);
9789 mono_mb_emit_stloc (mb, aklass);
9791 /* vklass = value->vtable->klass */
9792 mono_mb_emit_ldarg (mb, 2);
9793 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9794 mono_mb_emit_byte (mb, CEE_LDIND_I);
9795 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9796 mono_mb_emit_byte (mb, CEE_LDIND_I);
9797 mono_mb_emit_stloc (mb, vklass);
9799 /* if (vklass->idepth < aklass->idepth) goto failue */
9800 mono_mb_emit_ldloc (mb, vklass);
9801 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9802 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9804 mono_mb_emit_ldloc (mb, aklass);
9805 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9806 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9808 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9810 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9811 mono_mb_emit_ldloc (mb, vklass);
9812 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9813 mono_mb_emit_byte (mb, CEE_LDIND_I);
9815 mono_mb_emit_ldloc (mb, aklass);
9816 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9817 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9818 mono_mb_emit_icon (mb, 1);
9819 mono_mb_emit_byte (mb, CEE_SUB);
9820 mono_mb_emit_icon (mb, sizeof (void*));
9821 mono_mb_emit_byte (mb, CEE_MUL);
9822 mono_mb_emit_byte (mb, CEE_ADD);
9823 mono_mb_emit_byte (mb, CEE_LDIND_I);
9825 mono_mb_emit_ldloc (mb, aklass);
9827 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9829 copy_pos = mono_mb_get_label (mb);
9831 mono_mb_patch_branch (mb, b1);
9832 mono_mb_emit_ldloc (mb, array_slot_addr);
9833 mono_mb_emit_ldarg (mb, 2);
9834 mono_mb_emit_byte (mb, CEE_STIND_REF);
9836 mono_mb_emit_byte (mb, CEE_RET);
9839 mono_mb_patch_branch (mb, b2);
9840 mono_mb_patch_branch (mb, b3);
9842 mono_mb_emit_ldarg (mb, 2);
9843 mono_mb_emit_ldloc (mb, aklass);
9844 mono_mb_emit_icall (mb, mono_object_isinst);
9846 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9847 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9848 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9850 mono_mb_emit_byte (mb, CEE_RET);
9852 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9853 ret = mono_mb_create (mb, sig, 4, info);
9860 * mono_marshal_get_gsharedvt_in_wrapper:
9862 * This wrapper handles calls from normal code to gsharedvt code.
9864 * The wrapper info for the wrapper is a WrapperInfo structure.
9867 mono_marshal_get_gsharedvt_in_wrapper (void)
9869 static MonoMethod* ret = NULL;
9870 MonoMethodSignature *sig;
9871 MonoMethodBuilder *mb;
9877 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9879 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9880 sig->ret = &mono_defaults.void_class->byval_arg;
9884 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9886 mono_mb_emit_byte (mb, CEE_RET);
9888 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9889 ret = mono_mb_create (mb, sig, 4, info);
9896 * mono_marshal_get_gsharedvt_out_wrapper:
9898 * This wrapper handles calls from gsharedvt code to normal code.
9900 * The wrapper info for the wrapper is a WrapperInfo structure.
9903 mono_marshal_get_gsharedvt_out_wrapper (void)
9905 static MonoMethod* ret = NULL;
9906 MonoMethodSignature *sig;
9907 MonoMethodBuilder *mb;
9913 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9915 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9916 sig->ret = &mono_defaults.void_class->byval_arg;
9920 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9922 mono_mb_emit_byte (mb, CEE_RET);
9924 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9925 ret = mono_mb_create (mb, sig, 4, info);
9937 /* LOCKING: vars accessed under the marshal lock */
9938 static ArrayElemAddr *elem_addr_cache = NULL;
9939 static int elem_addr_cache_size = 0;
9940 static int elem_addr_cache_next = 0;
9943 * mono_marshal_get_array_address:
9944 * @rank: rank of the array type
9945 * @elem_size: size in bytes of an element of an array.
9947 * Returns a MonoMethod that implements the code to get the address
9948 * of an element in a multi-dimenasional array of @rank dimensions.
9949 * The returned method takes an array as the first argument and then
9950 * @rank indexes for the @rank dimensions.
9951 * If ELEM_SIZE is 0, read the array size from the array object.
9954 mono_marshal_get_array_address (int rank, int elem_size)
9957 MonoMethodBuilder *mb;
9958 MonoMethodSignature *sig;
9961 int i, bounds, ind, realidx;
9962 int branch_pos, *branch_positions;
9966 mono_marshal_lock ();
9967 for (i = 0; i < elem_addr_cache_next; ++i) {
9968 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9969 ret = elem_addr_cache [i].method;
9973 mono_marshal_unlock ();
9977 branch_positions = g_new0 (int, rank);
9979 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9981 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9982 sig->ret = &mono_defaults.int_class->byval_arg;
9983 sig->params [0] = &mono_defaults.object_class->byval_arg;
9984 for (i = 0; i < rank; ++i) {
9985 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9988 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9989 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9993 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9994 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9995 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9997 /* bounds = array->bounds; */
9998 mono_mb_emit_ldarg (mb, 0);
9999 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10000 mono_mb_emit_byte (mb, CEE_LDIND_I);
10001 mono_mb_emit_stloc (mb, bounds);
10003 /* ind is the overall element index, realidx is the partial index in a single dimension */
10004 /* ind = idx0 - bounds [0].lower_bound */
10005 mono_mb_emit_ldarg (mb, 1);
10006 mono_mb_emit_ldloc (mb, bounds);
10007 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10008 mono_mb_emit_byte (mb, CEE_ADD);
10009 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10010 mono_mb_emit_byte (mb, CEE_SUB);
10011 mono_mb_emit_stloc (mb, ind);
10012 /* if (ind >= bounds [0].length) goto exeception; */
10013 mono_mb_emit_ldloc (mb, ind);
10014 mono_mb_emit_ldloc (mb, bounds);
10015 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10016 mono_mb_emit_byte (mb, CEE_ADD);
10017 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10018 /* note that we use unsigned comparison */
10019 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10021 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10022 * We could also decide to ignore the passed elem_size and get it
10023 * from the array object, to reduce the number of methods we generate:
10024 * the additional cost is 3 memory loads and a non-immediate mul.
10026 for (i = 1; i < rank; ++i) {
10027 /* realidx = idxi - bounds [i].lower_bound */
10028 mono_mb_emit_ldarg (mb, 1 + i);
10029 mono_mb_emit_ldloc (mb, bounds);
10030 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10031 mono_mb_emit_byte (mb, CEE_ADD);
10032 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10033 mono_mb_emit_byte (mb, CEE_SUB);
10034 mono_mb_emit_stloc (mb, realidx);
10035 /* if (realidx >= bounds [i].length) goto exeception; */
10036 mono_mb_emit_ldloc (mb, realidx);
10037 mono_mb_emit_ldloc (mb, bounds);
10038 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10039 mono_mb_emit_byte (mb, CEE_ADD);
10040 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10041 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10042 /* ind = ind * bounds [i].length + realidx */
10043 mono_mb_emit_ldloc (mb, ind);
10044 mono_mb_emit_ldloc (mb, bounds);
10045 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10046 mono_mb_emit_byte (mb, CEE_ADD);
10047 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10048 mono_mb_emit_byte (mb, CEE_MUL);
10049 mono_mb_emit_ldloc (mb, realidx);
10050 mono_mb_emit_byte (mb, CEE_ADD);
10051 mono_mb_emit_stloc (mb, ind);
10054 /* return array->vector + ind * element_size */
10055 mono_mb_emit_ldarg (mb, 0);
10056 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10057 mono_mb_emit_ldloc (mb, ind);
10059 mono_mb_emit_icon (mb, elem_size);
10061 /* Load arr->vtable->klass->sizes.element_class */
10062 mono_mb_emit_ldarg (mb, 0);
10063 mono_mb_emit_byte (mb, CEE_CONV_I);
10064 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10065 mono_mb_emit_byte (mb, CEE_ADD);
10066 mono_mb_emit_byte (mb, CEE_LDIND_I);
10067 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10068 mono_mb_emit_byte (mb, CEE_ADD);
10069 mono_mb_emit_byte (mb, CEE_LDIND_I);
10070 /* sizes is an union, so this reads sizes.element_size */
10071 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10072 mono_mb_emit_byte (mb, CEE_ADD);
10073 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10075 mono_mb_emit_byte (mb, CEE_MUL);
10076 mono_mb_emit_byte (mb, CEE_ADD);
10077 mono_mb_emit_byte (mb, CEE_RET);
10079 /* patch the branches to get here and throw */
10080 for (i = 1; i < rank; ++i) {
10081 mono_mb_patch_branch (mb, branch_positions [i]);
10083 mono_mb_patch_branch (mb, branch_pos);
10084 /* throw exception */
10085 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10087 g_free (branch_positions);
10088 #endif /* DISABLE_JIT */
10090 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10091 info->d.element_addr.rank = rank;
10092 info->d.element_addr.elem_size = elem_size;
10093 ret = mono_mb_create (mb, sig, 4, info);
10096 /* cache the result */
10098 mono_marshal_lock ();
10099 for (i = 0; i < elem_addr_cache_next; ++i) {
10100 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10101 /* FIXME: free ret */
10102 ret = elem_addr_cache [i].method;
10108 if (elem_addr_cache_next >= elem_addr_cache_size) {
10109 int new_size = elem_addr_cache_size + 4;
10110 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10111 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10112 g_free (elem_addr_cache);
10113 elem_addr_cache = new_array;
10114 elem_addr_cache_size = new_size;
10116 elem_addr_cache [elem_addr_cache_next].rank = rank;
10117 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10118 elem_addr_cache [elem_addr_cache_next].method = ret;
10119 elem_addr_cache_next ++;
10121 mono_marshal_unlock ();
10126 * mono_marshal_get_array_accessor_wrapper:
10128 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10131 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10133 MonoMethodSignature *sig;
10134 MonoMethodBuilder *mb;
10138 MonoGenericContext *ctx = NULL;
10139 MonoMethod *orig_method = NULL;
10140 MonoGenericContainer *container = NULL;
10144 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10145 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10146 * FIXME: Use generic methods.
10153 g_assert_not_reached ();
10155 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10156 if ((res = mono_marshal_find_in_cache (cache, method)))
10160 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10163 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10165 #ifndef DISABLE_JIT
10166 /* Call the method */
10168 mono_mb_emit_ldarg (mb, 0);
10169 for (i = 0; i < sig->param_count; i++)
10170 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10174 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10175 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10177 mono_mb_emit_managed_call (mb, method, NULL);
10179 mono_mb_emit_byte (mb, CEE_RET);
10182 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10183 info->d.array_accessor.method = method;
10187 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10188 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10190 res = mono_mb_create_and_cache_full (cache, method,
10191 mb, sig, sig->param_count + 16,
10200 mono_marshal_alloc (gulong size, MonoError *error)
10204 mono_error_init (error);
10207 res = CoTaskMemAlloc (size);
10209 res = g_try_malloc ((gulong)size);
10211 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10216 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10218 ves_icall_marshal_alloc (gulong size)
10221 void *ret = mono_marshal_alloc (size, &error);
10222 if (!mono_error_ok (&error)) {
10223 mono_error_set_pending_exception (&error);
10231 mono_marshal_free (gpointer ptr)
10234 CoTaskMemFree (ptr);
10241 mono_marshal_free_array (gpointer *ptr, int size)
10248 for (i = 0; i < size; i++)
10254 mono_marshal_string_to_utf16 (MonoString *s)
10256 return s ? mono_string_chars (s) : NULL;
10259 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10261 mono_marshal_string_to_utf16_copy (MonoString *s)
10267 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10268 if (!mono_error_ok (&error)) {
10269 mono_error_set_pending_exception (&error);
10272 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10273 res [mono_string_length (s)] = 0;
10279 * mono_marshal_set_last_error:
10281 * This function is invoked to set the last error value from a P/Invoke call
10282 * which has SetLastError set.
10285 mono_marshal_set_last_error (void)
10288 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10290 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10295 mono_marshal_set_last_error_windows (int error)
10298 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10303 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10304 gpointer dest, gint32 length)
10309 MONO_CHECK_ARG_NULL (src,);
10310 MONO_CHECK_ARG_NULL (dest,);
10312 if (src->obj.vtable->klass->rank != 1) {
10313 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10316 if (start_index < 0) {
10317 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10321 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10324 if (start_index + length > mono_array_length (src)) {
10325 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10329 element_size = mono_array_element_size (src->obj.vtable->klass);
10331 /* no references should be involved */
10332 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10334 memcpy (dest, source_addr, length * element_size);
10338 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10339 MonoArray *dest, gint32 length)
10344 MONO_CHECK_ARG_NULL (src,);
10345 MONO_CHECK_ARG_NULL (dest,);
10347 if (dest->obj.vtable->klass->rank != 1) {
10348 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10351 if (start_index < 0) {
10352 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10356 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10359 if (start_index + length > mono_array_length (dest)) {
10360 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10363 element_size = mono_array_element_size (dest->obj.vtable->klass);
10365 /* no references should be involved */
10366 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10368 memcpy (dest_addr, src, length * element_size);
10372 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10377 return mono_string_new (mono_domain_get (), ptr);
10381 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10384 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10387 return mono_string_new_len (mono_domain_get (), ptr, len);
10392 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10395 MonoString *res = NULL;
10396 MonoDomain *domain = mono_domain_get ();
10406 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10407 if (!mono_error_ok (&error)) {
10408 mono_error_set_pending_exception (&error);
10415 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10418 MonoString *res = NULL;
10419 MonoDomain *domain = mono_domain_get ();
10421 mono_error_init (&error);
10425 mono_error_set_argument_null (&error, "ptr", "");
10427 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10430 if (!mono_error_ok (&error))
10431 mono_error_set_pending_exception (&error);
10436 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10438 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10442 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10448 MONO_CHECK_ARG_NULL (rtype, 0);
10450 type = rtype->type;
10451 klass = mono_class_from_mono_type (type);
10452 if (!mono_class_init (klass)) {
10453 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10457 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10459 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10460 return sizeof (gpointer);
10461 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10463 MonoException *exc;
10465 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10466 exc = mono_get_exception_argument ("t", msg);
10468 mono_set_pending_exception (exc);
10472 return mono_class_native_size (klass, NULL);
10476 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10479 MonoMethod *method;
10482 MONO_CHECK_ARG_NULL (obj,);
10483 MONO_CHECK_ARG_NULL (dst,);
10485 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10489 pa [2] = &delete_old;
10491 mono_runtime_invoke_checked (method, NULL, pa, &error);
10492 if (!mono_error_ok (&error))
10493 mono_error_set_pending_exception (&error);
10497 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10499 MonoMethod *method;
10502 mono_error_init (error);
10504 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10509 mono_runtime_invoke_checked (method, NULL, pa, error);
10513 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10518 MONO_CHECK_ARG_NULL (src,);
10519 MONO_CHECK_ARG_NULL (dst,);
10521 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10523 if (t->type == MONO_TYPE_VALUETYPE) {
10524 MonoException *exc;
10527 tmp = g_strdup_printf ("Destination is a boxed value type.");
10528 exc = mono_get_exception_argument ("dst", tmp);
10531 mono_set_pending_exception (exc);
10535 ptr_to_structure (src, dst, &error);
10536 if (!mono_error_ok (&error))
10537 mono_error_set_pending_exception (&error);
10541 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10545 MonoDomain *domain = mono_domain_get ();
10550 MONO_CHECK_ARG_NULL (type, NULL);
10552 klass = mono_class_from_mono_type (type->type);
10553 if (!mono_class_init (klass)) {
10554 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10558 res = mono_object_new_checked (domain, klass, &error);
10559 if (!mono_error_ok (&error)) {
10560 mono_error_set_pending_exception (&error);
10564 ptr_to_structure (src, res, &error);
10565 if (!mono_error_ok (&error)) {
10566 mono_error_set_pending_exception (&error);
10574 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10576 MonoMarshalType *info;
10579 int match_index = -1;
10581 MONO_CHECK_ARG_NULL (type, 0);
10582 MONO_CHECK_ARG_NULL (field_name, 0);
10584 fname = mono_string_to_utf8 (field_name);
10585 klass = mono_class_from_mono_type (type->type);
10586 if (!mono_class_init (klass)) {
10587 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10591 while (klass && match_index == -1) {
10592 MonoClassField* field;
10594 gpointer iter = NULL;
10595 while ((field = mono_class_get_fields (klass, &iter))) {
10596 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10598 if (!strcmp (fname, mono_field_get_name (field))) {
10605 if (match_index == -1)
10606 klass = klass->parent;
10611 if(match_index == -1) {
10612 MonoException* exc;
10615 /* Get back original class instance */
10616 klass = mono_class_from_mono_type (type->type);
10618 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10619 exc = mono_get_exception_argument ("fieldName", tmp);
10622 mono_set_pending_exception ((MonoException*)exc);
10626 info = mono_marshal_load_type_info (klass);
10627 return info->fields [match_index].offset;
10631 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10636 tres = mono_string_to_utf8 (string);
10640 len = strlen (tres) + 1;
10641 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10642 memcpy (ret, tres, len);
10647 return mono_string_to_utf8 (string);
10652 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10654 if (string == NULL)
10657 #ifdef TARGET_WIN32
10658 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10659 ((mono_string_length (string) + 1) * 2);
10661 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10663 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10664 res [mono_string_length (string)] = 0;
10670 mono_struct_delete_old (MonoClass *klass, char *ptr)
10672 MonoMarshalType *info;
10675 info = mono_marshal_load_type_info (klass);
10677 for (i = 0; i < info->num_fields; i++) {
10678 MonoMarshalConv conv;
10679 MonoType *ftype = info->fields [i].field->type;
10682 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10685 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10686 klass->unicode, &conv);
10688 cpos = ptr + info->fields [i].offset;
10691 case MONO_MARSHAL_CONV_NONE:
10692 if (MONO_TYPE_ISSTRUCT (ftype)) {
10693 mono_struct_delete_old (ftype->data.klass, cpos);
10697 case MONO_MARSHAL_CONV_STR_LPWSTR:
10698 /* We assume this field points inside a MonoString */
10700 case MONO_MARSHAL_CONV_STR_LPTSTR:
10701 #ifdef TARGET_WIN32
10702 /* We assume this field points inside a MonoString
10706 case MONO_MARSHAL_CONV_STR_LPSTR:
10707 case MONO_MARSHAL_CONV_STR_BSTR:
10708 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10709 case MONO_MARSHAL_CONV_STR_TBSTR:
10710 mono_marshal_free (*(gpointer *)cpos);
10720 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10724 MONO_CHECK_ARG_NULL (src,);
10725 MONO_CHECK_ARG_NULL (type,);
10727 klass = mono_class_from_mono_type (type->type);
10728 if (!mono_class_init (klass)) {
10729 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10733 mono_struct_delete_old (klass, (char *)src);
10737 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10740 size_t s = (size_t)size;
10743 /* This returns a valid pointer for size 0 on MS.NET */
10747 res = GlobalAlloc (GMEM_FIXED, s);
10749 res = g_try_malloc (s);
10752 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10760 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10763 size_t s = (size_t)size;
10766 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10771 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10773 res = g_try_realloc (ptr, s);
10776 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10784 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10794 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10799 res = CoTaskMemAlloc (size);
10801 if ((gulong)size == 0)
10802 /* This returns a valid pointer for size 0 on MS.NET */
10805 res = g_try_malloc ((gulong)size);
10808 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10815 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10818 CoTaskMemFree (ptr);
10825 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10830 res = CoTaskMemRealloc (ptr, size);
10832 res = g_try_realloc (ptr, (gulong)size);
10835 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10842 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10844 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10848 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10850 MonoClass *klass = mono_type_get_class (type->type);
10851 if (!mono_class_init (klass)) {
10852 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10856 return mono_ftnptr_to_delegate (klass, ftn);
10860 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10862 return mono_delegate_to_ftnptr (delegate);
10866 * mono_marshal_is_loading_type_info:
10868 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10872 mono_marshal_is_loading_type_info (MonoClass *klass)
10874 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10876 return g_slist_find (loads_list, klass) != NULL;
10880 * mono_marshal_load_type_info:
10882 * Initialize klass->marshal_info using information from metadata. This function can
10883 * recursively call itself, and the caller is responsible to avoid that by calling
10884 * mono_marshal_is_loading_type_info () beforehand.
10886 * LOCKING: Acquires the loader lock.
10889 mono_marshal_load_type_info (MonoClass* klass)
10892 guint32 native_size = 0, min_align = 1, packing;
10893 MonoMarshalType *info;
10894 MonoClassField* field;
10897 GSList *loads_list;
10899 g_assert (klass != NULL);
10901 if (klass->marshal_info)
10902 return klass->marshal_info;
10904 if (!klass->inited)
10905 mono_class_init (klass);
10907 if (klass->marshal_info)
10908 return klass->marshal_info;
10911 * This function can recursively call itself, so we keep the list of classes which are
10912 * under initialization in a TLS list.
10914 g_assert (!mono_marshal_is_loading_type_info (klass));
10915 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10916 loads_list = g_slist_prepend (loads_list, klass);
10917 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10920 while ((field = mono_class_get_fields (klass, &iter))) {
10921 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10923 if (mono_field_is_deleted (field))
10928 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10930 /* The mempool is protected by the loader lock */
10931 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10932 info->num_fields = count;
10934 /* Try to find a size for this type in metadata */
10935 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10937 if (klass->parent) {
10938 int parent_size = mono_class_native_size (klass->parent, NULL);
10940 /* Add parent size to real size */
10941 native_size += parent_size;
10942 info->native_size = parent_size;
10945 packing = klass->packing_size ? klass->packing_size : 8;
10948 while ((field = mono_class_get_fields (klass, &iter))) {
10952 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10955 if (mono_field_is_deleted (field))
10957 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10958 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10959 NULL, NULL, &info->fields [j].mspec);
10961 info->fields [j].field = field;
10963 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10964 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10965 /* This field is a hack inserted by MCS to empty structures */
10970 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10971 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10972 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10973 &align, TRUE, klass->unicode);
10974 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10975 min_align = MAX (align, min_align);
10976 info->fields [j].offset = info->native_size;
10977 info->fields [j].offset += align - 1;
10978 info->fields [j].offset &= ~(align - 1);
10979 info->native_size = info->fields [j].offset + size;
10981 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10982 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10983 &align, TRUE, klass->unicode);
10984 min_align = MAX (align, min_align);
10985 info->fields [j].offset = field->offset - sizeof (MonoObject);
10986 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10992 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10993 info->native_size = MAX (native_size, info->native_size);
10995 * If the provided Size is equal or larger than the calculated size, and there
10996 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10998 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10999 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11002 min_align = MIN (min_align, packing);
11006 if (info->native_size & (min_align - 1)) {
11007 info->native_size += min_align - 1;
11008 info->native_size &= ~(min_align - 1);
11011 info->min_align = min_align;
11013 /* Update the class's blittable info, if the layouts don't match */
11014 if (info->native_size != mono_class_value_size (klass, NULL))
11015 klass->blittable = FALSE;
11017 /* If this is an array type, ensure that we have element info */
11018 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11019 mono_marshal_load_type_info (klass->element_class);
11022 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11023 loads_list = g_slist_remove (loads_list, klass);
11024 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11026 mono_marshal_lock ();
11027 if (!klass->marshal_info) {
11028 /*We do double-checking locking on marshal_info */
11029 mono_memory_barrier ();
11030 klass->marshal_info = info;
11032 mono_marshal_unlock ();
11034 return klass->marshal_info;
11038 * mono_class_native_size:
11041 * Returns: the native size of an object instance (when marshaled
11042 * to unmanaged code)
11045 mono_class_native_size (MonoClass *klass, guint32 *align)
11047 if (!klass->marshal_info) {
11048 if (mono_marshal_is_loading_type_info (klass)) {
11053 mono_marshal_load_type_info (klass);
11058 *align = klass->marshal_info->min_align;
11060 return klass->marshal_info->native_size;
11064 * mono_type_native_stack_size:
11065 * @t: the type to return the size it uses on the stack
11067 * Returns: the number of bytes required to hold an instance of this
11068 * type on the native stack
11071 mono_type_native_stack_size (MonoType *t, guint32 *align)
11075 g_assert (t != NULL);
11081 *align = sizeof (gpointer);
11082 return sizeof (gpointer);
11086 case MONO_TYPE_BOOLEAN:
11087 case MONO_TYPE_CHAR:
11098 case MONO_TYPE_STRING:
11099 case MONO_TYPE_OBJECT:
11100 case MONO_TYPE_CLASS:
11101 case MONO_TYPE_SZARRAY:
11102 case MONO_TYPE_PTR:
11103 case MONO_TYPE_FNPTR:
11104 case MONO_TYPE_ARRAY:
11105 *align = sizeof (gpointer);
11106 return sizeof (gpointer);
11111 *align = MONO_ABI_ALIGNOF (double);
11115 *align = MONO_ABI_ALIGNOF (gint64);
11117 case MONO_TYPE_GENERICINST:
11118 if (!mono_type_generic_inst_is_valuetype (t)) {
11119 *align = sizeof (gpointer);
11120 return sizeof (gpointer);
11123 case MONO_TYPE_TYPEDBYREF:
11124 case MONO_TYPE_VALUETYPE: {
11126 MonoClass *klass = mono_class_from_mono_type (t);
11128 if (klass->enumtype)
11129 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11131 size = mono_class_native_size (klass, align);
11132 *align = *align + 3;
11142 g_error ("type 0x%02x unknown", t->type);
11148 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11149 gboolean as_field, gboolean unicode)
11151 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11154 switch (native_type) {
11155 case MONO_NATIVE_BOOLEAN:
11158 case MONO_NATIVE_I1:
11159 case MONO_NATIVE_U1:
11162 case MONO_NATIVE_I2:
11163 case MONO_NATIVE_U2:
11164 case MONO_NATIVE_VARIANTBOOL:
11167 case MONO_NATIVE_I4:
11168 case MONO_NATIVE_U4:
11169 case MONO_NATIVE_ERROR:
11172 case MONO_NATIVE_I8:
11173 case MONO_NATIVE_U8:
11174 *align = MONO_ABI_ALIGNOF (gint64);
11176 case MONO_NATIVE_R4:
11179 case MONO_NATIVE_R8:
11180 *align = MONO_ABI_ALIGNOF (double);
11182 case MONO_NATIVE_INT:
11183 case MONO_NATIVE_UINT:
11184 case MONO_NATIVE_LPSTR:
11185 case MONO_NATIVE_LPWSTR:
11186 case MONO_NATIVE_LPTSTR:
11187 case MONO_NATIVE_BSTR:
11188 case MONO_NATIVE_ANSIBSTR:
11189 case MONO_NATIVE_TBSTR:
11190 case MONO_NATIVE_LPARRAY:
11191 case MONO_NATIVE_SAFEARRAY:
11192 case MONO_NATIVE_IUNKNOWN:
11193 case MONO_NATIVE_IDISPATCH:
11194 case MONO_NATIVE_INTERFACE:
11195 case MONO_NATIVE_ASANY:
11196 case MONO_NATIVE_FUNC:
11197 case MONO_NATIVE_LPSTRUCT:
11198 *align = MONO_ABI_ALIGNOF (gpointer);
11199 return sizeof (gpointer);
11200 case MONO_NATIVE_STRUCT:
11201 klass = mono_class_from_mono_type (type);
11202 if (klass == mono_defaults.object_class &&
11203 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11207 return mono_class_native_size (klass, align);
11208 case MONO_NATIVE_BYVALTSTR: {
11209 int esize = unicode ? 2: 1;
11212 return mspec->data.array_data.num_elem * esize;
11214 case MONO_NATIVE_BYVALARRAY: {
11215 // FIXME: Have to consider ArraySubType
11217 klass = mono_class_from_mono_type (type);
11218 if (klass->element_class == mono_defaults.char_class) {
11219 esize = unicode ? 2 : 1;
11222 esize = mono_class_native_size (klass->element_class, align);
11225 return mspec->data.array_data.num_elem * esize;
11227 case MONO_NATIVE_CUSTOM:
11228 *align = sizeof (gpointer);
11229 return sizeof (gpointer);
11231 case MONO_NATIVE_CURRENCY:
11232 case MONO_NATIVE_VBBYREFSTR:
11234 g_error ("native type %02x not implemented", native_type);
11237 g_assert_not_reached ();
11241 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11243 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11252 t = &o->vtable->klass->byval_arg;
11256 case MONO_TYPE_PTR:
11259 case MONO_TYPE_BOOLEAN:
11262 case MONO_TYPE_CHAR:
11267 return mono_object_unbox (o);
11269 case MONO_TYPE_STRING:
11270 switch (string_encoding) {
11271 case MONO_NATIVE_LPWSTR:
11272 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11274 case MONO_NATIVE_LPSTR:
11275 return mono_string_to_lpstr ((MonoString*)o);
11278 g_warning ("marshaling conversion %d not implemented", string_encoding);
11279 g_assert_not_reached ();
11282 case MONO_TYPE_CLASS:
11283 case MONO_TYPE_VALUETYPE: {
11284 MonoMethod *method;
11287 MonoBoolean delete_old = FALSE;
11289 klass = t->data.klass;
11291 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11294 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11295 klass->blittable || klass->enumtype))
11296 return mono_object_unbox (o);
11298 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11299 if (!mono_error_ok (&error)) {
11300 mono_error_set_pending_exception (&error);
11304 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11305 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11309 pa [2] = &delete_old;
11311 mono_runtime_invoke_checked (method, NULL, pa, &error);
11312 if (!mono_error_ok (&error)) {
11313 mono_error_set_pending_exception (&error);
11323 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11327 /* This is a JIT icall, it sets the pending exception */
11329 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11338 t = &o->vtable->klass->byval_arg;
11340 case MONO_TYPE_STRING:
11341 switch (string_encoding) {
11342 case MONO_NATIVE_LPWSTR:
11343 case MONO_NATIVE_LPSTR:
11344 mono_marshal_free (ptr);
11347 g_warning ("marshaling conversion %d not implemented", string_encoding);
11348 g_assert_not_reached ();
11351 case MONO_TYPE_CLASS:
11352 case MONO_TYPE_VALUETYPE: {
11353 klass = t->data.klass;
11355 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11356 klass->blittable || klass->enumtype))
11359 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11360 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11366 mono_runtime_invoke_checked (method, NULL, pa, &error);
11367 if (!mono_error_ok (&error)) {
11368 mono_error_set_pending_exception (&error);
11373 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11374 mono_struct_delete_old (klass, (char *)ptr);
11377 mono_marshal_free (ptr);
11386 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11388 MonoMethodSignature *sig, *csig;
11389 MonoMethodBuilder *mb;
11394 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11395 mb->method->slot = -1;
11397 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11398 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11400 sig = mono_method_signature (method);
11401 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11402 csig->generic_param_count = 0;
11404 #ifndef DISABLE_JIT
11405 mono_mb_emit_ldarg (mb, 0);
11406 for (i = 0; i < csig->param_count; i++)
11407 mono_mb_emit_ldarg (mb, i + 1);
11408 mono_mb_emit_managed_call (mb, method, NULL);
11409 mono_mb_emit_byte (mb, CEE_RET);
11411 /* We can corlib internal methods */
11412 mb->skip_visibility = TRUE;
11414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11415 info->d.generic_array_helper.method = method;
11416 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11424 * The mono_win32_compat_* functions are implementations of inline
11425 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11426 * although not exported by kernel32.
11428 * We map the appropiate kernel32 entries to these functions using
11429 * dllmaps declared in the global etc/mono/config.
11433 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11435 if (!dest || !source)
11438 memcpy (dest, source, length);
11442 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11444 memset (dest, fill, length);
11448 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11450 if (!dest || !source)
11453 memmove (dest, source, length);
11457 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11459 memset (dest, 0, length);
11463 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11468 for (i = 0; i < len; ++i)
11472 g_assert (i < len);
11475 while (byte && !(byte & 1))
11477 g_assert (byte == 1);
11480 *bitmask = buf [i];
11484 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11486 MonoMethodBuilder *mb;
11487 MonoMethodSignature *sig, *csig;
11488 MonoExceptionClause *clause;
11493 int i, param_count, sig_size, pos_leave;
11494 int coop_gc_var, coop_gc_dummy_local;
11498 klass = method->klass;
11499 image = method->klass->image;
11501 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11503 if ((res = mono_marshal_find_in_cache (cache, method)))
11506 sig = mono_method_signature (method);
11507 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11509 /* add "this" and exception param */
11510 param_count = sig->param_count + sig->hasthis + 1;
11512 /* dup & extend signature */
11513 csig = mono_metadata_signature_alloc (image, param_count);
11514 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11515 memcpy (csig, sig, sig_size);
11516 csig->param_count = param_count;
11519 csig->call_convention = MONO_CALL_DEFAULT;
11521 if (sig->hasthis) {
11523 csig->params [0] = &klass->byval_arg;
11524 /* move params up by one */
11525 for (i = 0; i < sig->param_count; i++)
11526 csig->params [i + 1] = sig->params [i];
11529 /* setup exception param as byref+[out] */
11530 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11531 &mono_defaults.exception_class->byval_arg);
11532 csig->params [param_count - 1]->byref = 1;
11533 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11535 /* convert struct return to object */
11536 if (MONO_TYPE_ISSTRUCT (sig->ret))
11537 csig->ret = &mono_defaults.object_class->byval_arg;
11539 #ifndef DISABLE_JIT
11540 /* local 0 (temp for exception object) */
11541 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11543 /* local 1 (temp for result) */
11544 if (!MONO_TYPE_IS_VOID (sig->ret))
11545 mono_mb_add_local (mb, sig->ret);
11547 if (mono_threads_is_coop_enabled ()) {
11548 /* local 4, the local to be used when calling the reset_blocking funcs */
11549 /* tons of code hardcode 3 to be the return var */
11550 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11551 /* local 5, the local used to get a stack address for suspend funcs */
11552 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11555 /* clear exception arg */
11556 mono_mb_emit_ldarg (mb, param_count - 1);
11557 mono_mb_emit_byte (mb, CEE_LDNULL);
11558 mono_mb_emit_byte (mb, CEE_STIND_REF);
11560 if (mono_threads_is_coop_enabled ()) {
11561 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11562 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11563 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11564 mono_mb_emit_stloc (mb, coop_gc_var);
11568 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11569 clause->try_offset = mono_mb_get_label (mb);
11571 /* push method's args */
11572 for (i = 0; i < param_count - 1; i++) {
11576 mono_mb_emit_ldarg (mb, i);
11578 /* get the byval type of the param */
11579 klass = mono_class_from_mono_type (csig->params [i]);
11580 type = &klass->byval_arg;
11582 /* unbox struct args */
11583 if (MONO_TYPE_ISSTRUCT (type)) {
11584 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11586 /* byref args & and the "this" arg must remain a ptr.
11587 Otherwise make a copy of the value type */
11588 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11589 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11591 csig->params [i] = &mono_defaults.object_class->byval_arg;
11596 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11597 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11599 mono_mb_emit_op (mb, CEE_CALL, method);
11601 /* save result at local 1 */
11602 if (!MONO_TYPE_IS_VOID (sig->ret))
11603 mono_mb_emit_stloc (mb, 1);
11605 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11608 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11609 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11610 clause->data.catch_class = mono_defaults.object_class;
11612 clause->handler_offset = mono_mb_get_label (mb);
11614 /* store exception at local 0 */
11615 mono_mb_emit_stloc (mb, 0);
11616 mono_mb_emit_ldarg (mb, param_count - 1);
11617 mono_mb_emit_ldloc (mb, 0);
11618 mono_mb_emit_byte (mb, CEE_STIND_REF);
11619 mono_mb_emit_branch (mb, CEE_LEAVE);
11621 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11623 mono_mb_set_clauses (mb, 1, clause);
11625 mono_mb_patch_branch (mb, pos_leave);
11628 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11629 mono_mb_emit_ldloc (mb, 1);
11631 /* box the return value */
11632 if (MONO_TYPE_ISSTRUCT (sig->ret))
11633 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11636 if (mono_threads_is_coop_enabled ()) {
11637 /* XXX merge reset_blocking_end with detach */
11638 mono_mb_emit_ldloc (mb, coop_gc_var);
11639 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11640 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11643 mono_mb_emit_byte (mb, CEE_RET);
11646 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11653 * mono_marshal_free_dynamic_wrappers:
11655 * Free wrappers of the dynamic method METHOD.
11658 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11660 MonoImage *image = method->klass->image;
11662 g_assert (method_is_dynamic (method));
11664 /* This could be called during shutdown */
11665 if (marshal_mutex_initialized)
11666 mono_marshal_lock ();
11668 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11669 * they could be shared with other methods ?
11671 if (image->wrapper_caches.runtime_invoke_direct_cache)
11672 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11673 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11674 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11675 // FIXME: Need to clear the caches in other images as well
11676 if (image->delegate_bound_static_invoke_cache)
11677 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11679 if (marshal_mutex_initialized)
11680 mono_marshal_unlock ();