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)
2155 MonoMulticastDelegate *mcast_delegate;
2159 g_assert (delegate);
2160 mcast_delegate = (MonoMulticastDelegate *) delegate;
2161 if (mcast_delegate->delegates != NULL) {
2162 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2166 #ifndef DISABLE_REMOTING
2167 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2168 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2169 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2170 /* If the target is a proxy, make a direct call. Is proxy's work
2171 // to make the call asynchronous.
2173 MonoMethodMessage *msg;
2174 MonoDelegate *async_callback;
2176 MonoAsyncResult *ares;
2178 MonoArray *out_args;
2179 method = delegate->method;
2181 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2182 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2183 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2184 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2185 MONO_OBJECT_SETREF (msg, async_result, ares);
2186 msg->call_type = CallType_BeginInvoke;
2189 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2190 if (!mono_error_ok (&error)) {
2191 mono_error_set_pending_exception (&error);
2195 mono_set_pending_exception ((MonoException *) exc);
2201 klass = delegate->object.vtable->klass;
2203 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2205 method = mono_get_delegate_invoke (klass);
2208 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2214 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2216 int i, params_var, tmp_var;
2218 /* allocate local (pointer) *params[] */
2219 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2220 /* allocate local (pointer) tmp */
2221 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2223 /* alloate space on stack to store an array of pointers to the arguments */
2224 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2225 mono_mb_emit_byte (mb, CEE_PREFIX1);
2226 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2227 mono_mb_emit_stloc (mb, params_var);
2230 mono_mb_emit_ldloc (mb, params_var);
2231 mono_mb_emit_stloc (mb, tmp_var);
2233 if (save_this && sig->hasthis) {
2234 mono_mb_emit_ldloc (mb, tmp_var);
2235 mono_mb_emit_ldarg_addr (mb, 0);
2236 mono_mb_emit_byte (mb, CEE_STIND_I);
2237 /* tmp = tmp + sizeof (gpointer) */
2238 if (sig->param_count)
2239 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2243 for (i = 0; i < sig->param_count; i++) {
2244 mono_mb_emit_ldloc (mb, tmp_var);
2245 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2246 mono_mb_emit_byte (mb, CEE_STIND_I);
2247 /* tmp = tmp + sizeof (gpointer) */
2248 if (i < (sig->param_count - 1))
2249 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2255 #endif /* DISABLE_JIT */
2258 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2262 GString *res = g_string_new ("");
2265 g_string_append (res, prefix);
2266 g_string_append_c (res, '_');
2269 mono_type_get_desc (res, sig->ret, FALSE);
2272 g_string_append (res, "__this__");
2274 for (i = 0; i < sig->param_count; ++i) {
2275 g_string_append_c (res, '_');
2276 mono_type_get_desc (res, sig->params [i], FALSE);
2279 g_string_free (res, FALSE);
2284 * mono_marshal_get_string_encoding:
2286 * Return the string encoding which should be used for a given parameter.
2288 static MonoMarshalNative
2289 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2291 /* First try the parameter marshal info */
2293 if (spec->native == MONO_NATIVE_LPARRAY) {
2294 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2295 return spec->data.array_data.elem_type;
2298 return spec->native;
2302 return MONO_NATIVE_LPSTR;
2304 /* Then try the method level marshal info */
2305 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2306 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2307 return MONO_NATIVE_LPSTR;
2308 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2309 return MONO_NATIVE_LPWSTR;
2310 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2312 return MONO_NATIVE_LPWSTR;
2314 return MONO_NATIVE_LPSTR;
2317 return MONO_NATIVE_LPSTR;
2321 static MonoMarshalConv
2322 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2324 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2327 case MONO_NATIVE_LPWSTR:
2328 return MONO_MARSHAL_CONV_STR_LPWSTR;
2329 case MONO_NATIVE_LPSTR:
2330 case MONO_NATIVE_VBBYREFSTR:
2331 return MONO_MARSHAL_CONV_STR_LPSTR;
2332 case MONO_NATIVE_LPTSTR:
2333 return MONO_MARSHAL_CONV_STR_LPTSTR;
2334 case MONO_NATIVE_BSTR:
2335 return MONO_MARSHAL_CONV_STR_BSTR;
2337 return (MonoMarshalConv)-1;
2341 static MonoMarshalConv
2342 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2344 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2347 case MONO_NATIVE_LPWSTR:
2348 return MONO_MARSHAL_CONV_SB_LPWSTR;
2350 case MONO_NATIVE_LPSTR:
2351 return MONO_MARSHAL_CONV_SB_LPSTR;
2353 case MONO_NATIVE_LPTSTR:
2354 return MONO_MARSHAL_CONV_SB_LPTSTR;
2357 return (MonoMarshalConv)-1;
2361 static MonoMarshalConv
2362 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2364 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2369 case MONO_NATIVE_LPWSTR:
2371 return MONO_MARSHAL_CONV_LPWSTR_STR;
2372 case MONO_NATIVE_LPSTR:
2373 case MONO_NATIVE_VBBYREFSTR:
2374 return MONO_MARSHAL_CONV_LPSTR_STR;
2375 case MONO_NATIVE_LPTSTR:
2376 return MONO_MARSHAL_CONV_LPTSTR_STR;
2377 case MONO_NATIVE_BSTR:
2378 return MONO_MARSHAL_CONV_BSTR_STR;
2380 return (MonoMarshalConv)-1;
2384 static MonoMarshalConv
2385 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2387 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2392 case MONO_NATIVE_LPWSTR:
2394 * mono_string_builder_to_utf16 does not allocate a
2395 * new buffer, so no need to free it.
2398 return MONO_MARSHAL_CONV_LPWSTR_SB;
2399 case MONO_NATIVE_LPSTR:
2400 return MONO_MARSHAL_CONV_LPSTR_SB;
2402 case MONO_NATIVE_LPTSTR:
2403 return MONO_MARSHAL_CONV_LPTSTR_SB;
2406 return (MonoMarshalConv)-1;
2411 * Return whenever a field of a native structure or an array member needs to
2415 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2417 MonoMarshalNative encoding;
2420 case MONO_TYPE_VALUETYPE:
2421 /* FIXME: Optimize this */
2423 case MONO_TYPE_OBJECT:
2424 case MONO_TYPE_CLASS:
2425 if (t->data.klass == mono_defaults.stringbuilder_class) {
2427 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2431 case MONO_TYPE_STRING:
2432 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2433 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2440 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2443 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2446 mono_marshal_lock ();
2449 g_hash_table_new (hash_func, equal_func);
2450 mono_memory_barrier ();
2453 mono_marshal_unlock ();
2459 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2461 return get_cache (var, hash_func, equal_func);
2465 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2469 mono_marshal_lock ();
2470 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2471 mono_marshal_unlock ();
2478 * Create a MonoMethod from MB, set INFO as wrapper info.
2481 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2482 int max_stack, WrapperInfo *info)
2486 res = mono_mb_create_method (mb, sig, max_stack);
2488 mono_marshal_set_wrapper_info (res, info);
2492 /* Create the method from the builder and place it in the cache */
2494 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2495 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2496 int max_stack, WrapperInfo *info, gboolean *out_found)
2503 mono_marshal_lock ();
2504 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2505 mono_marshal_unlock ();
2508 newm = mono_mb_create_method (mb, sig, max_stack);
2509 mono_marshal_lock ();
2510 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2513 g_hash_table_insert (cache, key, res);
2514 mono_marshal_set_wrapper_info (res, info);
2515 mono_marshal_unlock ();
2519 mono_marshal_unlock ();
2520 mono_free_method (newm);
2528 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2529 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2532 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2536 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2539 int wrapper_type = wrapper->wrapper_type;
2542 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2545 info = mono_marshal_get_wrapper_info (wrapper);
2547 switch (wrapper_type) {
2548 case MONO_WRAPPER_REMOTING_INVOKE:
2549 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2550 case MONO_WRAPPER_XDOMAIN_INVOKE:
2551 m = info->d.remoting.method;
2552 if (wrapper->is_inflated) {
2556 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2557 * contains an uninflated method.
2559 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2560 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2564 case MONO_WRAPPER_SYNCHRONIZED:
2565 m = info->d.synchronized.method;
2566 if (wrapper->is_inflated) {
2569 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2570 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2574 case MONO_WRAPPER_UNBOX:
2575 return info->d.unbox.method;
2576 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2577 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2578 return info->d.managed_to_native.method;
2581 case MONO_WRAPPER_RUNTIME_INVOKE:
2582 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2583 return info->d.runtime_invoke.method;
2592 * mono_marshal_get_wrapper_info:
2594 * Retrieve the WrapperInfo structure associated with WRAPPER.
2597 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2599 g_assert (wrapper->wrapper_type);
2601 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2605 * mono_marshal_set_wrapper_info:
2607 * Set the WrapperInfo structure associated with the wrapper
2608 * method METHOD to INFO.
2611 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2615 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2618 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2623 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2627 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2628 info->subtype = subtype;
2633 * get_wrapper_target_class:
2635 * Return the class where a wrapper method should be placed.
2638 get_wrapper_target_class (MonoImage *image)
2645 * - can't put all wrappers into an mscorlib class, because they reference
2646 * metadata (signature) so they should be put into the same image as the
2647 * method they wrap, so they are unloaded together.
2648 * - putting them into a class with a type initalizer could cause the
2649 * initializer to be executed which can be a problem if the wrappers are
2651 * - putting them into an inflated class can cause problems if the the
2652 * class is deleted because it references an image which is unloaded.
2653 * To avoid these problems, we put the wrappers into the <Module> class of
2656 if (image_is_dynamic (image)) {
2657 klass = ((MonoDynamicImage*)image)->wrappers_type;
2659 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2660 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2668 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2669 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2673 * check_generic_wrapper_cache:
2675 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2676 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2677 * generic method definition.
2680 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2683 MonoMethod *inst, *def;
2684 MonoGenericContext *ctx;
2686 g_assert (orig_method->is_inflated);
2687 ctx = mono_method_get_context (orig_method);
2690 * Look for the instance
2692 res = mono_marshal_find_in_cache (cache, key);
2697 * Look for the definition
2699 def = mono_marshal_find_in_cache (cache, def_key);
2702 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2703 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2705 mono_memory_barrier ();
2706 mono_marshal_lock ();
2707 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2709 g_hash_table_insert (cache, key, inst);
2712 mono_marshal_unlock ();
2719 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2722 MonoMethod *inst, *res;
2725 * We use the same cache for the generic definition and the instances.
2727 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2728 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2729 mono_memory_barrier ();
2730 mono_marshal_lock ();
2731 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2733 g_hash_table_insert (cache, key, inst);
2736 mono_marshal_unlock ();
2741 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2745 MonoMethod *inst, *def;
2748 * Look for the instance
2750 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2755 * Look for the definition
2757 def = mono_marshal_find_in_cache (cache, def_method->klass);
2759 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2760 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2763 mono_memory_barrier ();
2764 mono_marshal_lock ();
2765 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2767 g_hash_table_insert (cache, orig_method->klass, inst);
2770 mono_marshal_unlock ();
2777 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2780 MonoMethod *inst, *res;
2783 * We use the same cache for the generic definition and the instances.
2785 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2786 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2788 mono_memory_barrier ();
2789 mono_marshal_lock ();
2790 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2792 g_hash_table_insert (cache, orig_method->klass, inst);
2795 mono_marshal_unlock ();
2800 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2802 MonoMethodSignature *sig;
2803 MonoMethodBuilder *mb;
2808 MonoGenericContext *ctx = NULL;
2809 MonoMethod *orig_method = NULL;
2811 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2812 !strcmp (method->name, "BeginInvoke"));
2815 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2817 if (method->is_inflated) {
2818 orig_method = method;
2819 ctx = &((MonoMethodInflated*)method)->context;
2820 method = ((MonoMethodInflated*)method)->declaring;
2823 sig = mono_signature_no_pinvoke (method);
2829 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2830 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2834 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2835 (GHashFunc)mono_signature_hash,
2836 (GCompareFunc)mono_metadata_signature_equal);
2837 if ((res = mono_marshal_find_in_cache (cache, sig)))
2841 g_assert (sig->hasthis);
2843 name = mono_signature_to_name (sig, "begin_invoke");
2845 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2847 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2851 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2853 mono_mb_emit_ldarg (mb, 0);
2854 mono_mb_emit_ldloc (mb, params_var);
2855 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2856 mono_mb_emit_byte (mb, CEE_RET);
2861 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2862 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2864 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2871 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2873 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2876 MonoDomain *domain = mono_domain_get ();
2877 MonoAsyncResult *ares;
2878 MonoMethod *method = NULL;
2879 MonoMethodSignature *sig;
2880 MonoMethodMessage *msg;
2881 MonoObject *res, *exc;
2882 MonoArray *out_args;
2885 g_assert (delegate);
2887 if (!delegate->method_info) {
2888 g_assert (delegate->method);
2889 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2890 if (!mono_error_ok (&error)) {
2891 mono_error_set_pending_exception (&error);
2894 MONO_OBJECT_SETREF (delegate, method_info, rm);
2897 if (!delegate->method_info || !delegate->method_info->method)
2898 g_assert_not_reached ();
2900 klass = delegate->object.vtable->klass;
2902 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2903 g_assert (method != NULL);
2905 sig = mono_signature_no_pinvoke (method);
2907 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2909 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2911 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."));
2915 if (ares->async_delegate != (MonoObject*)delegate) {
2916 mono_set_pending_exception (mono_get_exception_invalid_operation (
2917 "The IAsyncResult object provided does not match this delegate."));
2921 #ifndef DISABLE_REMOTING
2922 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2923 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2924 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2925 if (!mono_error_ok (&error)) {
2926 mono_error_set_pending_exception (&error);
2929 mono_message_init (domain, msg, delegate->method_info, NULL);
2930 msg->call_type = CallType_EndInvoke;
2931 MONO_OBJECT_SETREF (msg, async_result, ares);
2932 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2933 if (!mono_error_ok (&error)) {
2934 mono_error_set_pending_exception (&error);
2940 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2944 if (((MonoException*)exc)->stack_trace) {
2945 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2947 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2949 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2952 mono_set_pending_exception ((MonoException*)exc);
2955 mono_method_return_message_restore (method, params, out_args);
2962 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2964 MonoType *t = mono_type_get_underlying_type (return_type);
2966 if (return_type->byref)
2967 return_type = &mono_defaults.int_class->byval_arg;
2970 case MONO_TYPE_VOID:
2971 g_assert_not_reached ();
2974 case MONO_TYPE_STRING:
2975 case MONO_TYPE_CLASS:
2976 case MONO_TYPE_OBJECT:
2977 case MONO_TYPE_ARRAY:
2978 case MONO_TYPE_SZARRAY:
2982 case MONO_TYPE_BOOLEAN:
2985 case MONO_TYPE_CHAR:
2995 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2996 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2998 case MONO_TYPE_GENERICINST:
2999 if (!mono_type_generic_inst_is_valuetype (t))
3002 case MONO_TYPE_VALUETYPE: {
3003 MonoClass *klass = mono_class_from_mono_type (return_type);
3004 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3005 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3009 case MONO_TYPE_MVAR: {
3010 MonoClass *klass = mono_class_from_mono_type (return_type);
3011 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3015 g_warning ("type 0x%x not handled", return_type->type);
3016 g_assert_not_reached ();
3019 mono_mb_emit_byte (mb, CEE_RET);
3022 #endif /* DISABLE_JIT */
3025 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3027 MonoMethodSignature *sig;
3028 MonoMethodBuilder *mb;
3033 MonoGenericContext *ctx = NULL;
3034 MonoMethod *orig_method = NULL;
3036 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3037 !strcmp (method->name, "EndInvoke"));
3040 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3042 if (method->is_inflated) {
3043 orig_method = method;
3044 ctx = &((MonoMethodInflated*)method)->context;
3045 method = ((MonoMethodInflated*)method)->declaring;
3048 sig = mono_signature_no_pinvoke (method);
3054 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3055 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3059 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3060 (GHashFunc)mono_signature_hash,
3061 (GCompareFunc)mono_metadata_signature_equal);
3062 if ((res = mono_marshal_find_in_cache (cache, sig)))
3066 g_assert (sig->hasthis);
3068 name = mono_signature_to_name (sig, "end_invoke");
3070 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3072 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3076 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3078 mono_mb_emit_ldarg (mb, 0);
3079 mono_mb_emit_ldloc (mb, params_var);
3080 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3082 if (sig->ret->type == MONO_TYPE_VOID) {
3083 mono_mb_emit_byte (mb, CEE_POP);
3084 mono_mb_emit_byte (mb, CEE_RET);
3086 mono_mb_emit_restore_result (mb, sig->ret);
3091 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3092 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3094 res = mono_mb_create_and_cache (cache, sig,
3095 mb, sig, sig->param_count + 16);
3104 MonoMethodSignature *sig;
3106 } SignaturePointerPair;
3109 signature_pointer_pair_hash (gconstpointer data)
3111 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3113 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3117 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3119 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3120 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3124 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3126 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3128 return pair->pointer == user_data;
3132 free_signature_pointer_pair (SignaturePointerPair *pair)
3138 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3140 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3142 MonoMethodBuilder *mb;
3145 gpointer cache_key = NULL;
3146 SignaturePointerPair key;
3147 SignaturePointerPair *new_key;
3148 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3149 int pos0, pos1, pos2;
3151 MonoClass *target_class = NULL;
3152 gboolean closed_over_null = FALSE;
3153 MonoGenericContext *ctx = NULL;
3154 MonoGenericContainer *container = NULL;
3155 MonoMethod *orig_method = NULL;
3157 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3161 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3162 !strcmp (method->name, "Invoke"));
3164 invoke_sig = sig = mono_signature_no_pinvoke (method);
3167 * If the delegate target is null, and the target method is not static, a virtual
3168 * call is made to that method with the first delegate argument as this. This is
3169 * a non-documented .NET feature.
3172 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3173 if (target_method->is_inflated) {
3174 MonoType *target_type;
3176 g_assert (method->signature->hasthis);
3177 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3178 mono_method_get_context (method));
3179 target_class = mono_class_from_mono_type (target_type);
3181 target_class = target_method->klass;
3184 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3187 if (static_method_with_first_arg_bound) {
3188 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3189 g_assert (!callvirt);
3190 invoke_sig = mono_method_signature (target_method);
3194 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3196 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3197 orig_method = method;
3198 ctx = &((MonoMethodInflated*)method)->context;
3199 method = ((MonoMethodInflated*)method)->declaring;
3201 container = mono_method_get_generic_container (method);
3203 container = method->klass->generic_container;
3204 g_assert (container);
3206 invoke_sig = sig = mono_signature_no_pinvoke (method);
3213 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3214 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3217 cache_key = method->klass;
3218 } else if (static_method_with_first_arg_bound) {
3219 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3220 (GHashFunc)mono_signature_hash,
3221 (GCompareFunc)mono_metadata_signature_equal);
3223 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3225 res = mono_marshal_find_in_cache (cache, invoke_sig);
3228 cache_key = invoke_sig;
3229 } else if (callvirt) {
3230 GHashTable **cache_ptr;
3232 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3234 /* We need to cache the signature+method pair */
3235 mono_marshal_lock ();
3237 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3239 key.sig = invoke_sig;
3240 key.pointer = target_method;
3241 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3242 mono_marshal_unlock ();
3246 // Inflated methods should not be in this cache because it's not stored on the imageset.
3247 g_assert (!method->is_inflated);
3248 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3249 (GHashFunc)mono_signature_hash,
3250 (GCompareFunc)mono_metadata_signature_equal);
3251 res = mono_marshal_find_in_cache (cache, sig);
3257 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3258 static_sig->hasthis = 0;
3259 if (!static_method_with_first_arg_bound)
3260 invoke_sig = static_sig;
3262 if (static_method_with_first_arg_bound)
3263 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3264 else if (closed_over_null)
3265 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3267 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3269 name = mono_signature_to_name (invoke_sig, "invoke");
3271 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3273 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3277 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3279 /* allocate local 0 (object) */
3280 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3281 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3282 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3283 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3284 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3287 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3289 g_assert (sig->hasthis);
3292 * {type: sig->ret} res;
3293 * if (delegates == null) {
3294 * return this.<target> ( args .. );
3296 * int i = 0, len = this.delegates.Length;
3298 * res = this.delegates [i].Invoke ( args .. );
3299 * } while (++i < len);
3304 /* this wrapper can be used in unmanaged-managed transitions */
3305 emit_thread_interrupt_checkpoint (mb);
3307 /* delegates = this.delegates */
3308 mono_mb_emit_ldarg (mb, 0);
3309 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3310 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3311 mono_mb_emit_stloc (mb, local_delegates);
3314 /* if (delegates == null) */
3315 mono_mb_emit_ldloc (mb, local_delegates);
3316 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3318 /* return target.<target_method|method_ptr> ( args .. ); */
3320 /* target = d.target; */
3321 mono_mb_emit_ldarg (mb, 0);
3322 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3323 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3324 mono_mb_emit_stloc (mb, local_target);
3326 /*static methods with bound first arg can have null target and still be bound*/
3327 if (!static_method_with_first_arg_bound) {
3328 /* if target != null */
3329 mono_mb_emit_ldloc (mb, local_target);
3330 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3332 /* then call this->method_ptr nonstatic */
3335 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3337 mono_mb_emit_ldloc (mb, local_target);
3338 for (i = 0; i < sig->param_count; ++i)
3339 mono_mb_emit_ldarg (mb, i + 1);
3340 mono_mb_emit_ldarg (mb, 0);
3341 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3342 mono_mb_emit_byte (mb, CEE_LDIND_I);
3343 mono_mb_emit_ldarg (mb, 0);
3344 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3345 mono_mb_emit_byte (mb, CEE_LDIND_I);
3346 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3347 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3348 mono_mb_emit_byte (mb, CEE_RET);
3351 /* else [target == null] call this->method_ptr static */
3352 mono_mb_patch_branch (mb, pos0);
3356 if (!closed_over_null) {
3357 if (target_class->valuetype) {
3358 mono_mb_emit_ldarg (mb, 1);
3359 for (i = 1; i < sig->param_count; ++i)
3360 mono_mb_emit_ldarg (mb, i + 1);
3361 mono_mb_emit_op (mb, CEE_CALL, target_method);
3363 mono_mb_emit_ldarg (mb, 1);
3364 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3365 for (i = 1; i < sig->param_count; ++i)
3366 mono_mb_emit_ldarg (mb, i + 1);
3367 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3370 mono_mb_emit_byte (mb, CEE_LDNULL);
3371 for (i = 0; i < sig->param_count; ++i)
3372 mono_mb_emit_ldarg (mb, i + 1);
3373 mono_mb_emit_op (mb, CEE_CALL, target_method);
3376 if (static_method_with_first_arg_bound) {
3377 mono_mb_emit_ldloc (mb, local_target);
3378 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3379 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3381 for (i = 0; i < sig->param_count; ++i)
3382 mono_mb_emit_ldarg (mb, i + 1);
3383 mono_mb_emit_ldarg (mb, 0);
3384 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3385 mono_mb_emit_byte (mb, CEE_LDIND_I);
3386 mono_mb_emit_ldarg (mb, 0);
3387 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3388 mono_mb_emit_byte (mb, CEE_LDIND_I);
3389 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3390 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3393 mono_mb_emit_byte (mb, CEE_RET);
3395 /* else [delegates != null] */
3396 mono_mb_patch_branch (mb, pos2);
3398 /* len = delegates.Length; */
3399 mono_mb_emit_ldloc (mb, local_delegates);
3400 mono_mb_emit_byte (mb, CEE_LDLEN);
3401 mono_mb_emit_byte (mb, CEE_CONV_I4);
3402 mono_mb_emit_stloc (mb, local_len);
3405 mono_mb_emit_icon (mb, 0);
3406 mono_mb_emit_stloc (mb, local_i);
3408 pos1 = mono_mb_get_label (mb);
3410 /* d = delegates [i]; */
3411 mono_mb_emit_ldloc (mb, local_delegates);
3412 mono_mb_emit_ldloc (mb, local_i);
3413 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3414 mono_mb_emit_stloc (mb, local_d);
3416 /* res = d.Invoke ( args .. ); */
3417 mono_mb_emit_ldloc (mb, local_d);
3418 for (i = 0; i < sig->param_count; i++)
3419 mono_mb_emit_ldarg (mb, i + 1);
3421 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3424 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3425 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3428 mono_mb_emit_stloc (mb, local_res);
3431 mono_mb_emit_add_to_local (mb, local_i, 1);
3434 mono_mb_emit_ldloc (mb, local_i);
3435 mono_mb_emit_ldloc (mb, local_len);
3436 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3440 mono_mb_emit_ldloc (mb, local_res);
3441 mono_mb_emit_byte (mb, CEE_RET);
3443 mb->skip_visibility = 1;
3444 #endif /* DISABLE_JIT */
3446 info = mono_wrapper_info_create (mb, subtype);
3451 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3452 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3453 } else if (callvirt) {
3454 new_key = g_new0 (SignaturePointerPair, 1);
3457 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3461 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3465 /* mono_method_print_code (res); */
3471 * the returned method invokes all methods in a multicast delegate.
3474 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3476 gboolean callvirt = FALSE;
3477 gboolean static_method_with_first_arg_bound = FALSE;
3478 MonoMethod *target_method = NULL;
3479 MonoMethodSignature *sig;
3481 sig = mono_signature_no_pinvoke (method);
3483 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3485 target_method = del->method;
3488 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3489 static_method_with_first_arg_bound = TRUE;
3490 target_method = del->method;
3493 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3497 MonoMethodSignature *ctor_sig;
3498 MonoMethodSignature *sig;
3501 /* protected by the marshal lock, contains CtorSigPair pointers */
3502 static GSList *strsig_list = NULL;
3504 static MonoMethodSignature *
3505 lookup_string_ctor_signature (MonoMethodSignature *sig)
3507 MonoMethodSignature *callsig;
3511 mono_marshal_lock ();
3513 for (item = strsig_list; item; item = item->next) {
3514 cs = (CtorSigPair *)item->data;
3515 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3516 * because it is lock-free.
3518 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3523 mono_marshal_unlock ();
3527 static MonoMethodSignature *
3528 add_string_ctor_signature (MonoMethod *method)
3530 MonoMethodSignature *callsig;
3533 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3534 callsig->ret = &mono_defaults.string_class->byval_arg;
3535 cs = g_new (CtorSigPair, 1);
3537 cs->ctor_sig = mono_method_signature (method);
3539 mono_marshal_lock ();
3540 strsig_list = g_slist_prepend (strsig_list, cs);
3541 mono_marshal_unlock ();
3546 * mono_marshal_get_string_ctor_signature:
3548 * Return the modified signature used by string ctors (they return the newly created
3551 MonoMethodSignature*
3552 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3554 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3556 sig = add_string_ctor_signature (method);
3562 get_runtime_invoke_type (MonoType *t, gboolean ret)
3565 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3567 /* Can't share this with 'I' as that needs another indirection */
3568 return &mono_defaults.int_class->this_arg;
3571 if (MONO_TYPE_IS_REFERENCE (t))
3572 return &mono_defaults.object_class->byval_arg;
3575 /* The result needs to be boxed */
3580 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3583 return &mono_defaults.sbyte_class->byval_arg;
3585 return &mono_defaults.int16_class->byval_arg;
3587 return &mono_defaults.int32_class->byval_arg;
3590 return &mono_defaults.int64_class->byval_arg;
3591 case MONO_TYPE_BOOLEAN:
3592 return &mono_defaults.byte_class->byval_arg;
3593 case MONO_TYPE_CHAR:
3594 return &mono_defaults.uint16_class->byval_arg;
3596 return &mono_defaults.int_class->byval_arg;
3597 case MONO_TYPE_VALUETYPE:
3598 if (t->data.klass->enumtype) {
3599 t = mono_class_enum_basetype (t->data.klass);
3609 * mono_marshal_get_runtime_invoke_sig:
3611 * Return a common signature used for sharing runtime invoke wrappers.
3613 static MonoMethodSignature*
3614 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3616 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3619 res->generic_param_count = 0;
3620 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3621 for (i = 0; i < res->param_count; ++i)
3622 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3628 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3630 /* Can't share wrappers which return a vtype since it needs to be boxed */
3631 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))
3634 return mono_metadata_signature_equal (sig1, sig2);
3642 * Emit the call to the wrapper method from a runtime invoke wrapper.
3645 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3646 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3648 gboolean virtual_, gboolean need_direct_wrapper)
3650 static MonoString *string_dummy = NULL;
3652 int *tmp_nullable_locals;
3653 gboolean void_ret = FALSE;
3654 gboolean string_ctor = method && method->string_ctor;
3656 /* to make it work with our special string constructors */
3657 if (!string_dummy) {
3658 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3659 string_dummy = mono_string_new_wrapper ("dummy");
3663 g_assert (sig->hasthis);
3664 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3669 if (mono_gc_is_moving ()) {
3670 mono_mb_emit_ptr (mb, &string_dummy);
3671 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3673 mono_mb_emit_ptr (mb, string_dummy);
3676 mono_mb_emit_ldarg (mb, 0);
3680 tmp_nullable_locals = g_new0 (int, sig->param_count);
3682 for (i = 0; i < sig->param_count; i++) {
3683 MonoType *t = sig->params [i];
3686 mono_mb_emit_ldarg (mb, 1);
3688 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3689 mono_mb_emit_byte (mb, CEE_ADD);
3693 mono_mb_emit_byte (mb, CEE_LDIND_I);
3694 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3695 * So to make this work we unbox it to a local variablee and push a reference to that.
3697 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3698 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3700 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3701 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3702 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3707 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3708 type = sig->params [i]->type;
3712 case MONO_TYPE_BOOLEAN:
3716 case MONO_TYPE_CHAR:
3725 mono_mb_emit_byte (mb, CEE_LDIND_I);
3726 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3728 case MONO_TYPE_STRING:
3729 case MONO_TYPE_CLASS:
3730 case MONO_TYPE_ARRAY:
3732 case MONO_TYPE_SZARRAY:
3733 case MONO_TYPE_OBJECT:
3734 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3736 case MONO_TYPE_GENERICINST:
3737 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3738 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3743 case MONO_TYPE_VALUETYPE:
3744 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3745 type = mono_class_enum_basetype (t->data.klass)->type;
3748 mono_mb_emit_byte (mb, CEE_LDIND_I);
3749 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3750 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3751 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3752 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3754 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3758 g_assert_not_reached ();
3763 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3764 } else if (need_direct_wrapper) {
3765 mono_mb_emit_op (mb, CEE_CALL, method);
3767 mono_mb_emit_ldarg (mb, 3);
3768 mono_mb_emit_calli (mb, callsig);
3771 if (sig->ret->byref) {
3773 g_assert_not_reached ();
3776 switch (sig->ret->type) {
3777 case MONO_TYPE_VOID:
3781 case MONO_TYPE_BOOLEAN:
3782 case MONO_TYPE_CHAR:
3795 case MONO_TYPE_VALUETYPE:
3796 case MONO_TYPE_TYPEDBYREF:
3797 case MONO_TYPE_GENERICINST:
3798 /* box value types */
3799 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3801 case MONO_TYPE_STRING:
3802 case MONO_TYPE_CLASS:
3803 case MONO_TYPE_ARRAY:
3804 case MONO_TYPE_SZARRAY:
3805 case MONO_TYPE_OBJECT:
3809 /* The result is an IntPtr */
3810 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3813 g_assert_not_reached ();
3817 mono_mb_emit_stloc (mb, loc_res);
3819 /* Convert back nullable-byref arguments */
3820 for (i = 0; i < sig->param_count; i++) {
3821 MonoType *t = sig->params [i];
3824 * Box the result and put it back into the array, the caller will have
3825 * to obtain it from there.
3827 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3828 mono_mb_emit_ldarg (mb, 1);
3829 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3830 mono_mb_emit_byte (mb, CEE_ADD);
3832 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3833 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3835 mono_mb_emit_byte (mb, CEE_STIND_REF);
3839 g_free (tmp_nullable_locals);
3843 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3844 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3845 gboolean virtual_, gboolean need_direct_wrapper)
3848 MonoExceptionClause *clause;
3849 int loc_res, loc_exc;
3851 /* The wrapper looks like this:
3857 * } catch (Exception e) {
3865 /* allocate local 0 (object) tmp */
3866 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3867 /* allocate local 1 (object) exc */
3868 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3870 /* *exc is assumed to be initialized to NULL by the caller */
3872 mono_mb_emit_byte (mb, CEE_LDARG_2);
3873 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3878 labels [1] = mono_mb_get_label (mb);
3879 emit_thread_force_interrupt_checkpoint (mb);
3880 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3882 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3884 /* Add a try clause around the call */
3885 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3886 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3887 clause->data.catch_class = mono_defaults.exception_class;
3888 clause->try_offset = labels [1];
3889 clause->try_len = mono_mb_get_label (mb) - labels [1];
3891 clause->handler_offset = mono_mb_get_label (mb);
3894 mono_mb_emit_stloc (mb, loc_exc);
3895 mono_mb_emit_byte (mb, CEE_LDARG_2);
3896 mono_mb_emit_ldloc (mb, loc_exc);
3897 mono_mb_emit_byte (mb, CEE_STIND_REF);
3899 mono_mb_emit_branch (mb, CEE_LEAVE);
3901 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3903 mono_mb_set_clauses (mb, 1, clause);
3905 mono_mb_patch_branch (mb, labels [2]);
3906 mono_mb_emit_ldloc (mb, loc_res);
3907 mono_mb_emit_byte (mb, CEE_RET);
3912 mono_mb_patch_branch (mb, labels [0]);
3913 emit_thread_force_interrupt_checkpoint (mb);
3914 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3916 mono_mb_emit_ldloc (mb, 0);
3917 mono_mb_emit_byte (mb, CEE_RET);
3922 * generates IL code for the runtime invoke function
3923 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3925 * we also catch exceptions if exc != null
3926 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3927 * it means that the compiled code for METHOD does not have to be looked up
3928 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3929 * its METHOD argument.
3932 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3934 MonoMethodSignature *sig, *csig, *callsig;
3935 MonoMethodBuilder *mb;
3936 GHashTable *cache = NULL;
3937 MonoClass *target_klass;
3938 MonoMethod *res = NULL;
3939 static MonoMethodSignature *cctor_signature = NULL;
3940 static MonoMethodSignature *finalize_signature = NULL;
3942 const char *param_names [16];
3943 gboolean need_direct_wrapper = FALSE;
3948 if (!cctor_signature) {
3949 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3950 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3952 if (!finalize_signature) {
3953 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3954 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3955 finalize_signature->hasthis = 1;
3959 need_direct_wrapper = TRUE;
3962 * Use a separate cache indexed by methods to speed things up and to avoid the
3963 * boundless mempool growth caused by the signature_dup stuff below.
3966 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3968 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3970 res = mono_marshal_find_in_cache (cache, method);
3974 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3975 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3977 * Array Get/Set/Address methods. The JIT implements them using inline code
3978 * so we need to create an invoke wrapper which calls the method directly.
3980 need_direct_wrapper = TRUE;
3983 if (method->string_ctor) {
3984 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3986 callsig = add_string_ctor_signature (method);
3987 /* Can't share this as we push a string as this */
3988 need_direct_wrapper = TRUE;
3990 if (method_is_dynamic (method))
3991 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3993 callsig = mono_method_signature (method);
3996 sig = mono_method_signature (method);
3998 target_klass = get_wrapper_target_class (method->klass->image);
4000 /* Try to share wrappers for non-corlib methods with simple signatures */
4001 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4002 callsig = cctor_signature;
4003 target_klass = mono_defaults.object_class;
4004 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4005 callsig = finalize_signature;
4006 target_klass = mono_defaults.object_class;
4009 if (need_direct_wrapper) {
4010 /* Already searched at the start */
4012 MonoMethodSignature *tmp_sig;
4014 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4015 GHashTable **cache_table = NULL;
4017 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4018 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4020 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4022 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4023 (GCompareFunc)runtime_invoke_signature_equal);
4025 /* from mono_marshal_find_in_cache */
4026 mono_marshal_lock ();
4027 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4028 mono_marshal_unlock ();
4035 /* Make a copy of the signature from the image mempool */
4037 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4041 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4043 csig->ret = &mono_defaults.object_class->byval_arg;
4044 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4045 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4047 csig->params [0] = &mono_defaults.object_class->byval_arg;
4048 csig->params [1] = &mono_defaults.int_class->byval_arg;
4049 csig->params [2] = &mono_defaults.int_class->byval_arg;
4050 csig->params [3] = &mono_defaults.int_class->byval_arg;
4053 /* This is called from runtime code so it has to be cdecl */
4054 csig->call_convention = MONO_CALL_C;
4057 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4058 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4062 param_names [0] = "this";
4063 param_names [1] = "params";
4064 param_names [2] = "exc";
4065 param_names [3] = "method";
4066 mono_mb_set_param_names (mb, param_names);
4068 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4071 if (need_direct_wrapper) {
4073 mb->skip_visibility = 1;
4075 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4076 info->d.runtime_invoke.method = method;
4077 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4079 /* taken from mono_mb_create_and_cache */
4080 mono_marshal_lock ();
4081 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4082 mono_marshal_unlock ();
4084 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4085 info->d.runtime_invoke.sig = callsig;
4087 /* Somebody may have created it before us */
4090 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4092 mono_marshal_lock ();
4093 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4095 GHashTable *direct_cache;
4097 g_hash_table_insert (cache, callsig, res);
4098 /* Can't insert it into wrapper_hash since the key is a signature */
4099 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4101 g_hash_table_insert (direct_cache, method, res);
4103 mono_free_method (newm);
4105 mono_marshal_unlock ();
4108 /* end mono_mb_create_and_cache */
4117 * mono_marshal_get_runtime_invoke_dynamic:
4119 * Return a method which can be used to invoke managed methods from native code
4121 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4122 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4123 * ARGS should point to an architecture specific structure containing
4124 * the arguments and space for the return value.
4125 * The other arguments are the same as for runtime_invoke (), except that
4126 * ARGS should contain the this argument too.
4127 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4128 * is only one copy of it, which is useful in full-aot.
4129 * The wrapper info for the wrapper is a WrapperInfo structure.
4132 mono_marshal_get_runtime_invoke_dynamic (void)
4134 static MonoMethod *method;
4135 MonoMethodSignature *csig;
4136 MonoExceptionClause *clause;
4137 MonoMethodBuilder *mb;
4145 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4147 csig->ret = &mono_defaults.void_class->byval_arg;
4148 csig->params [0] = &mono_defaults.int_class->byval_arg;
4149 csig->params [1] = &mono_defaults.int_class->byval_arg;
4150 csig->params [2] = &mono_defaults.int_class->byval_arg;
4151 csig->params [3] = &mono_defaults.int_class->byval_arg;
4153 name = g_strdup ("runtime_invoke_dynamic");
4154 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4158 /* allocate local 0 (object) tmp */
4159 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4160 /* allocate local 1 (object) exc */
4161 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4163 /* cond set *exc to null */
4164 mono_mb_emit_byte (mb, CEE_LDARG_1);
4165 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4166 mono_mb_emit_byte (mb, 3);
4167 mono_mb_emit_byte (mb, CEE_LDARG_1);
4168 mono_mb_emit_byte (mb, CEE_LDNULL);
4169 mono_mb_emit_byte (mb, CEE_STIND_REF);
4171 emit_thread_force_interrupt_checkpoint (mb);
4173 mono_mb_emit_byte (mb, CEE_LDARG_0);
4174 mono_mb_emit_byte (mb, CEE_LDARG_2);
4175 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4176 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4178 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4180 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4181 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4182 clause->try_len = mono_mb_get_label (mb);
4185 clause->data.filter_offset = mono_mb_get_label (mb);
4187 mono_mb_emit_byte (mb, CEE_POP);
4188 mono_mb_emit_byte (mb, CEE_LDARG_1);
4189 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4190 mono_mb_emit_byte (mb, CEE_PREFIX1);
4191 mono_mb_emit_byte (mb, CEE_CGT_UN);
4192 mono_mb_emit_byte (mb, CEE_PREFIX1);
4193 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4195 clause->handler_offset = mono_mb_get_label (mb);
4198 /* store exception */
4199 mono_mb_emit_stloc (mb, 1);
4201 mono_mb_emit_byte (mb, CEE_LDARG_1);
4202 mono_mb_emit_ldloc (mb, 1);
4203 mono_mb_emit_byte (mb, CEE_STIND_REF);
4205 mono_mb_emit_byte (mb, CEE_LDNULL);
4206 mono_mb_emit_stloc (mb, 0);
4208 /* Check for the abort exception */
4209 mono_mb_emit_ldloc (mb, 1);
4210 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4211 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4213 /* Delay the abort exception */
4214 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4216 mono_mb_patch_short_branch (mb, posna);
4217 mono_mb_emit_branch (mb, CEE_LEAVE);
4219 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4221 mono_mb_set_clauses (mb, 1, clause);
4224 mono_mb_patch_branch (mb, pos);
4225 //mono_mb_emit_ldloc (mb, 0);
4226 mono_mb_emit_byte (mb, CEE_RET);
4227 #endif /* DISABLE_JIT */
4229 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4231 mono_marshal_lock ();
4232 /* double-checked locking */
4234 method = mono_mb_create (mb, csig, 16, info);
4236 mono_marshal_unlock ();
4244 * mono_marshal_get_runtime_invoke_for_sig:
4246 * Return a runtime invoke wrapper for a given signature.
4249 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4251 MonoMethodSignature *csig, *callsig;
4252 MonoMethodBuilder *mb;
4254 GHashTable *cache = NULL;
4255 GHashTable **cache_table = NULL;
4256 MonoMethod *res = NULL;
4258 const char *param_names [16];
4261 /* A simplified version of mono_marshal_get_runtime_invoke */
4263 image = mono_defaults.corlib;
4265 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4267 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4269 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4270 (GCompareFunc)runtime_invoke_signature_equal);
4272 /* from mono_marshal_find_in_cache */
4273 mono_marshal_lock ();
4274 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4275 mono_marshal_unlock ();
4282 /* Make a copy of the signature from the image mempool */
4283 callsig = mono_metadata_signature_dup_full (image, callsig);
4285 csig = mono_metadata_signature_alloc (image, 4);
4286 csig->ret = &mono_defaults.object_class->byval_arg;
4287 csig->params [0] = &mono_defaults.object_class->byval_arg;
4288 csig->params [1] = &mono_defaults.int_class->byval_arg;
4289 csig->params [2] = &mono_defaults.int_class->byval_arg;
4290 csig->params [3] = &mono_defaults.int_class->byval_arg;
4293 /* This is called from runtime code so it has to be cdecl */
4294 csig->call_convention = MONO_CALL_C;
4297 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4298 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4302 param_names [0] = "this";
4303 param_names [1] = "params";
4304 param_names [2] = "exc";
4305 param_names [3] = "method";
4306 mono_mb_set_param_names (mb, param_names);
4308 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4311 /* taken from mono_mb_create_and_cache */
4312 mono_marshal_lock ();
4313 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4314 mono_marshal_unlock ();
4316 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4317 info->d.runtime_invoke.sig = callsig;
4319 /* Somebody may have created it before us */
4322 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4324 mono_marshal_lock ();
4325 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4328 g_hash_table_insert (cache, callsig, res);
4330 mono_free_method (newm);
4332 mono_marshal_unlock ();
4335 /* end mono_mb_create_and_cache */
4344 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4346 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4347 klass->name_space, klass->name);
4349 mono_mb_emit_exception_marshal_directive (mb, msg);
4354 * generates IL code for the icall wrapper (the generated method
4355 * calls the unmanaged code in func)
4356 * The wrapper info for the wrapper is a WrapperInfo structure.
4359 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4361 MonoMethodSignature *csig, *csig2;
4362 MonoMethodBuilder *mb;
4367 g_assert (sig->pinvoke);
4369 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4371 mb->method->save_lmf = 1;
4373 /* Add an explicit this argument */
4375 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4377 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4381 mono_mb_emit_byte (mb, CEE_LDARG_0);
4383 for (i = 0; i < sig->param_count; i++)
4384 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4386 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4387 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4388 mono_mb_emit_calli (mb, csig2);
4389 if (check_exceptions)
4390 emit_thread_interrupt_checkpoint (mb);
4391 mono_mb_emit_byte (mb, CEE_RET);
4394 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4396 if (csig->call_convention == MONO_CALL_VARARG)
4397 csig->call_convention = 0;
4399 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4400 info->d.icall.func = (gpointer)func;
4401 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4408 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4409 MonoMarshalSpec *spec,
4410 int conv_arg, MonoType **conv_arg_type,
4411 MarshalAction action)
4414 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4415 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4420 static MonoClass *ICustomMarshaler = NULL;
4421 static MonoMethod *cleanup_native, *cleanup_managed;
4422 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4423 MonoMethod *get_instance = NULL;
4424 MonoMethodBuilder *mb = m->mb;
4425 char *exception_msg = NULL;
4429 if (!ICustomMarshaler) {
4430 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4432 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4433 goto handle_exception;
4436 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4437 g_assert (cleanup_native);
4438 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4439 g_assert (cleanup_managed);
4440 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4441 g_assert (marshal_managed_to_native);
4442 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4443 g_assert (marshal_native_to_managed);
4445 mono_memory_barrier ();
4446 ICustomMarshaler = klass;
4449 if (spec->data.custom_data.image)
4450 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4452 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4453 g_assert (mtype != NULL);
4454 mklass = mono_class_from_mono_type (mtype);
4455 g_assert (mklass != NULL);
4457 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4458 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4460 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4462 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4463 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4464 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4465 (get_sig->params [0]->type != MONO_TYPE_STRING))
4466 get_instance = NULL;
4470 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);
4473 /* Throw exception and emit compensation code if neccesary */
4474 if (exception_msg) {
4476 case MARSHAL_ACTION_CONV_IN:
4477 case MARSHAL_ACTION_CONV_RESULT:
4478 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4479 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4480 mono_mb_emit_byte (mb, CEE_POP);
4482 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4483 g_free (exception_msg);
4486 case MARSHAL_ACTION_PUSH:
4487 mono_mb_emit_byte (mb, CEE_LDNULL);
4495 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4496 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4499 case MARSHAL_ACTION_CONV_IN:
4501 case MONO_TYPE_CLASS:
4502 case MONO_TYPE_OBJECT:
4503 case MONO_TYPE_STRING:
4504 case MONO_TYPE_ARRAY:
4505 case MONO_TYPE_SZARRAY:
4506 case MONO_TYPE_VALUETYPE:
4510 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4511 g_assert_not_reached ();
4515 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4517 mono_mb_emit_byte (mb, CEE_LDNULL);
4518 mono_mb_emit_stloc (mb, conv_arg);
4520 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4523 /* Minic MS.NET behavior */
4524 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4527 /* Check for null */
4528 mono_mb_emit_ldarg (mb, argnum);
4530 mono_mb_emit_byte (mb, CEE_LDIND_I);
4531 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4533 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4535 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4537 mono_mb_emit_ldarg (mb, argnum);
4539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4541 if (t->type == MONO_TYPE_VALUETYPE) {
4543 * Since we can't determine the type of the argument, we
4544 * will assume the unmanaged function takes a pointer.
4546 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4548 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4551 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4552 mono_mb_emit_stloc (mb, conv_arg);
4554 mono_mb_patch_branch (mb, pos2);
4557 case MARSHAL_ACTION_CONV_OUT:
4558 /* Check for null */
4559 mono_mb_emit_ldloc (mb, conv_arg);
4560 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4563 mono_mb_emit_ldarg (mb, argnum);
4565 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4567 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4569 mono_mb_emit_ldloc (mb, conv_arg);
4570 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4571 mono_mb_emit_byte (mb, CEE_STIND_REF);
4572 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4573 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4575 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4577 mono_mb_emit_ldloc (mb, conv_arg);
4578 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4580 /* We have nowhere to store the result */
4581 mono_mb_emit_byte (mb, CEE_POP);
4584 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4586 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4588 mono_mb_emit_ldloc (mb, conv_arg);
4590 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4592 mono_mb_patch_branch (mb, pos2);
4595 case MARSHAL_ACTION_PUSH:
4597 mono_mb_emit_ldloc_addr (mb, conv_arg);
4599 mono_mb_emit_ldloc (mb, conv_arg);
4602 case MARSHAL_ACTION_CONV_RESULT:
4603 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4605 mono_mb_emit_stloc (mb, 3);
4607 mono_mb_emit_ldloc (mb, 3);
4608 mono_mb_emit_stloc (mb, loc1);
4610 /* Check for null */
4611 mono_mb_emit_ldloc (mb, 3);
4612 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4614 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4616 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4617 mono_mb_emit_byte (mb, CEE_DUP);
4619 mono_mb_emit_ldloc (mb, 3);
4620 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4621 mono_mb_emit_stloc (mb, 3);
4623 mono_mb_emit_ldloc (mb, loc1);
4624 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4626 mono_mb_patch_branch (mb, pos2);
4629 case MARSHAL_ACTION_MANAGED_CONV_IN:
4630 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4632 mono_mb_emit_byte (mb, CEE_LDNULL);
4633 mono_mb_emit_stloc (mb, conv_arg);
4635 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4638 /* Check for null */
4639 mono_mb_emit_ldarg (mb, argnum);
4641 mono_mb_emit_byte (mb, CEE_LDIND_I);
4642 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4644 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4645 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4647 mono_mb_emit_ldarg (mb, argnum);
4649 mono_mb_emit_byte (mb, CEE_LDIND_I);
4651 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4652 mono_mb_emit_stloc (mb, conv_arg);
4654 mono_mb_patch_branch (mb, pos2);
4657 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4658 g_assert (!t->byref);
4660 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4662 mono_mb_emit_stloc (mb, 3);
4664 mono_mb_emit_ldloc (mb, 3);
4665 mono_mb_emit_stloc (mb, loc1);
4667 /* Check for null */
4668 mono_mb_emit_ldloc (mb, 3);
4669 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4671 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4672 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4673 mono_mb_emit_byte (mb, CEE_DUP);
4675 mono_mb_emit_ldloc (mb, 3);
4676 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4677 mono_mb_emit_stloc (mb, 3);
4679 mono_mb_emit_ldloc (mb, loc1);
4680 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4682 mono_mb_patch_branch (mb, pos2);
4685 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4687 /* Check for null */
4688 mono_mb_emit_ldloc (mb, conv_arg);
4689 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4692 mono_mb_emit_ldarg (mb, argnum);
4694 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4696 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4698 mono_mb_emit_ldloc (mb, conv_arg);
4699 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4700 mono_mb_emit_byte (mb, CEE_STIND_I);
4703 /* Call CleanUpManagedData */
4704 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4706 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4708 mono_mb_emit_ldloc (mb, conv_arg);
4709 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4711 mono_mb_patch_branch (mb, pos2);
4715 g_assert_not_reached ();
4723 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4724 MonoMarshalSpec *spec,
4725 int conv_arg, MonoType **conv_arg_type,
4726 MarshalAction action)
4729 MonoMethodBuilder *mb = m->mb;
4732 case MARSHAL_ACTION_CONV_IN: {
4733 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4735 g_assert (t->type == MONO_TYPE_OBJECT);
4736 g_assert (!t->byref);
4738 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4739 mono_mb_emit_ldarg (mb, argnum);
4740 mono_mb_emit_icon (mb, encoding);
4741 mono_mb_emit_icon (mb, t->attrs);
4742 mono_mb_emit_icall (mb, mono_marshal_asany);
4743 mono_mb_emit_stloc (mb, conv_arg);
4747 case MARSHAL_ACTION_PUSH:
4748 mono_mb_emit_ldloc (mb, conv_arg);
4751 case MARSHAL_ACTION_CONV_OUT: {
4752 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4754 mono_mb_emit_ldarg (mb, argnum);
4755 mono_mb_emit_ldloc (mb, conv_arg);
4756 mono_mb_emit_icon (mb, encoding);
4757 mono_mb_emit_icon (mb, t->attrs);
4758 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4763 g_assert_not_reached ();
4770 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4771 MonoMarshalSpec *spec,
4772 int conv_arg, MonoType **conv_arg_type,
4773 MarshalAction action)
4776 MonoMethodBuilder *mb = m->mb;
4777 MonoClass *klass, *date_time_class;
4780 klass = mono_class_from_mono_type (t);
4782 date_time_class = mono_class_get_date_time_class ();
4785 case MARSHAL_ACTION_CONV_IN:
4786 if (klass == date_time_class) {
4787 /* Convert it to an OLE DATE type */
4788 static MonoMethod *to_oadate;
4791 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4792 g_assert (to_oadate);
4794 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4797 mono_mb_emit_ldarg (mb, argnum);
4798 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4801 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4803 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4805 mono_mb_emit_ldarg_addr (mb, argnum);
4806 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4807 mono_mb_emit_stloc (mb, conv_arg);
4811 mono_mb_patch_branch (mb, pos);
4815 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4816 klass->blittable || klass->enumtype)
4819 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4821 /* store the address of the source into local variable 0 */
4823 mono_mb_emit_ldarg (mb, argnum);
4825 mono_mb_emit_ldarg_addr (mb, argnum);
4827 mono_mb_emit_stloc (mb, 0);
4829 /* allocate space for the native struct and
4830 * store the address into local variable 1 (dest) */
4831 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4832 mono_mb_emit_byte (mb, CEE_PREFIX1);
4833 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4834 mono_mb_emit_stloc (mb, conv_arg);
4837 mono_mb_emit_ldloc (mb, 0);
4838 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4841 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4843 mono_mb_emit_ldloc (mb, conv_arg);
4844 mono_mb_emit_stloc (mb, 1);
4846 /* emit valuetype conversion code */
4847 emit_struct_conv (mb, klass, FALSE);
4851 mono_mb_patch_branch (mb, pos);
4854 case MARSHAL_ACTION_PUSH:
4855 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4857 g_assert (!t->byref);
4859 /* Have to change the signature since the vtype is passed byref */
4860 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4862 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4863 klass->blittable || klass->enumtype)
4864 mono_mb_emit_ldarg_addr (mb, argnum);
4866 mono_mb_emit_ldloc (mb, conv_arg);
4870 if (klass == date_time_class) {
4872 mono_mb_emit_ldloc_addr (mb, conv_arg);
4874 mono_mb_emit_ldloc (mb, conv_arg);
4878 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4879 klass->blittable || klass->enumtype) {
4880 mono_mb_emit_ldarg (mb, argnum);
4883 mono_mb_emit_ldloc (mb, conv_arg);
4885 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4886 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4890 case MARSHAL_ACTION_CONV_OUT:
4891 if (klass == date_time_class) {
4892 /* Convert from an OLE DATE type */
4893 static MonoMethod *from_oadate;
4898 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4900 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4901 g_assert (from_oadate);
4903 mono_mb_emit_ldarg (mb, argnum);
4904 mono_mb_emit_ldloc (mb, conv_arg);
4905 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4906 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4911 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4912 klass->blittable || klass->enumtype)
4916 /* dst = argument */
4917 mono_mb_emit_ldarg (mb, argnum);
4918 mono_mb_emit_stloc (mb, 1);
4920 mono_mb_emit_ldloc (mb, 1);
4921 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4923 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4924 /* src = tmp_locals [i] */
4925 mono_mb_emit_ldloc (mb, conv_arg);
4926 mono_mb_emit_stloc (mb, 0);
4928 /* emit valuetype conversion code */
4929 emit_struct_conv (mb, klass, TRUE);
4933 emit_struct_free (mb, klass, conv_arg);
4936 mono_mb_patch_branch (mb, pos);
4939 case MARSHAL_ACTION_CONV_RESULT:
4940 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4942 mono_mb_emit_stloc (mb, 3);
4946 /* load pointer to returned value type */
4947 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4948 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4949 /* store the address of the source into local variable 0 */
4950 mono_mb_emit_stloc (mb, 0);
4952 mono_mb_emit_ldloc_addr (mb, 3);
4953 mono_mb_emit_stloc (mb, 1);
4955 /* emit valuetype conversion code */
4956 emit_struct_conv (mb, klass, TRUE);
4959 case MARSHAL_ACTION_MANAGED_CONV_IN:
4960 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4961 klass->blittable || klass->enumtype) {
4966 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4968 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4972 mono_mb_emit_ldarg (mb, argnum);
4974 mono_mb_emit_ldarg_addr (mb, argnum);
4975 mono_mb_emit_stloc (mb, 0);
4978 mono_mb_emit_ldloc (mb, 0);
4979 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4982 mono_mb_emit_ldloc_addr (mb, conv_arg);
4983 mono_mb_emit_stloc (mb, 1);
4985 /* emit valuetype conversion code */
4986 emit_struct_conv (mb, klass, TRUE);
4989 mono_mb_patch_branch (mb, pos);
4992 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4993 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4994 klass->blittable || klass->enumtype) {
4998 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5001 /* Check for null */
5002 mono_mb_emit_ldarg (mb, argnum);
5003 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5006 mono_mb_emit_ldloc_addr (mb, conv_arg);
5007 mono_mb_emit_stloc (mb, 0);
5010 mono_mb_emit_ldarg (mb, argnum);
5011 mono_mb_emit_stloc (mb, 1);
5013 /* emit valuetype conversion code */
5014 emit_struct_conv (mb, klass, FALSE);
5016 mono_mb_patch_branch (mb, pos2);
5019 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5020 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5021 klass->blittable || klass->enumtype) {
5022 mono_mb_emit_stloc (mb, 3);
5027 /* load pointer to returned value type */
5028 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5029 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5031 /* store the address of the source into local variable 0 */
5032 mono_mb_emit_stloc (mb, 0);
5033 /* allocate space for the native struct and
5034 * store the address into dst_ptr */
5035 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5036 m->retobj_class = klass;
5037 g_assert (m->retobj_var);
5038 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5039 mono_mb_emit_byte (mb, CEE_CONV_I);
5040 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5041 mono_mb_emit_stloc (mb, 1);
5042 mono_mb_emit_ldloc (mb, 1);
5043 mono_mb_emit_stloc (mb, m->retobj_var);
5045 /* emit valuetype conversion code */
5046 emit_struct_conv (mb, klass, FALSE);
5050 g_assert_not_reached ();
5057 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5058 MonoMarshalSpec *spec,
5059 int conv_arg, MonoType **conv_arg_type,
5060 MarshalAction action)
5064 case MARSHAL_ACTION_CONV_IN:
5065 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5067 case MARSHAL_ACTION_MANAGED_CONV_IN:
5068 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5072 MonoMethodBuilder *mb = m->mb;
5073 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5074 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5078 case MARSHAL_ACTION_CONV_IN:
5079 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5080 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5083 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5086 mono_mb_emit_ldarg (mb, argnum);
5087 mono_mb_emit_byte (mb, CEE_LDIND_I);
5089 mono_mb_emit_ldarg (mb, argnum);
5093 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5094 mono_mb_emit_exception_marshal_directive (mb, msg);
5096 mono_mb_emit_icall (mb, conv_to_icall (conv));
5098 mono_mb_emit_stloc (mb, conv_arg);
5102 case MARSHAL_ACTION_CONV_OUT:
5103 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5105 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5106 mono_mb_emit_exception_marshal_directive (mb, msg);
5110 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5111 static MonoMethod *m;
5114 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5119 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5120 mono_mb_emit_exception_marshal_directive (mb, msg);
5125 * Have to allocate a new string with the same length as the original, and
5126 * copy the contents of the buffer pointed to by CONV_ARG into it.
5128 g_assert (t->byref);
5129 mono_mb_emit_ldarg (mb, argnum);
5130 mono_mb_emit_ldloc (mb, conv_arg);
5131 mono_mb_emit_ldarg (mb, argnum);
5132 mono_mb_emit_byte (mb, CEE_LDIND_I);
5133 mono_mb_emit_managed_call (mb, m, NULL);
5134 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5135 mono_mb_emit_byte (mb, CEE_STIND_REF);
5136 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5137 mono_mb_emit_ldarg (mb, argnum);
5138 mono_mb_emit_ldloc (mb, conv_arg);
5139 mono_mb_emit_icall (mb, conv_to_icall (conv));
5140 mono_mb_emit_byte (mb, CEE_STIND_REF);
5145 mono_mb_emit_ldloc (mb, conv_arg);
5146 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5147 mono_mb_emit_icall (mb, mono_free_bstr);
5149 mono_mb_emit_icall (mb, mono_marshal_free);
5153 case MARSHAL_ACTION_PUSH:
5154 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5155 mono_mb_emit_ldloc_addr (mb, conv_arg);
5157 mono_mb_emit_ldloc (mb, conv_arg);
5160 case MARSHAL_ACTION_CONV_RESULT:
5161 mono_mb_emit_stloc (mb, 0);
5163 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5165 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5166 mono_mb_emit_exception_marshal_directive (mb, msg);
5170 mono_mb_emit_ldloc (mb, 0);
5171 mono_mb_emit_icall (mb, conv_to_icall (conv));
5172 mono_mb_emit_stloc (mb, 3);
5174 /* free the string */
5175 mono_mb_emit_ldloc (mb, 0);
5176 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5177 mono_mb_emit_icall (mb, mono_free_bstr);
5179 mono_mb_emit_icall (mb, mono_marshal_free);
5182 case MARSHAL_ACTION_MANAGED_CONV_IN:
5183 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5185 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5188 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5192 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5194 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5195 mono_mb_emit_exception_marshal_directive (mb, msg);
5199 mono_mb_emit_ldarg (mb, argnum);
5201 mono_mb_emit_byte (mb, CEE_LDIND_I);
5202 mono_mb_emit_icall (mb, conv_to_icall (conv));
5203 mono_mb_emit_stloc (mb, conv_arg);
5206 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5209 mono_mb_emit_ldarg (mb, argnum);
5210 mono_mb_emit_ldloc (mb, conv_arg);
5211 mono_mb_emit_icall (mb, conv_to_icall (conv));
5212 mono_mb_emit_byte (mb, CEE_STIND_I);
5217 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5218 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5219 /* We need to make a copy so the caller is able to free it */
5220 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5222 mono_mb_emit_icall (mb, conv_to_icall (conv));
5223 mono_mb_emit_stloc (mb, 3);
5227 g_assert_not_reached ();
5235 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5236 MonoMarshalSpec *spec, int conv_arg,
5237 MonoType **conv_arg_type, MarshalAction action)
5240 if (action == MARSHAL_ACTION_CONV_IN)
5241 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5243 MonoMethodBuilder *mb = m->mb;
5246 case MARSHAL_ACTION_CONV_IN: {
5247 MonoType *intptr_type;
5248 int dar_release_slot, pos;
5250 intptr_type = &mono_defaults.int_class->byval_arg;
5251 conv_arg = mono_mb_add_local (mb, intptr_type);
5252 *conv_arg_type = intptr_type;
5254 if (!sh_dangerous_add_ref)
5255 init_safe_handle ();
5257 mono_mb_emit_ldarg (mb, argnum);
5258 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5259 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5261 mono_mb_patch_branch (mb, pos);
5264 * My tests in show that ref SafeHandles are not really
5265 * passed as ref objects. Instead a NULL is passed as the
5268 mono_mb_emit_icon (mb, 0);
5269 mono_mb_emit_stloc (mb, conv_arg);
5273 /* Create local to hold the ref parameter to DangerousAddRef */
5274 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5276 /* set release = false; */
5277 mono_mb_emit_icon (mb, 0);
5278 mono_mb_emit_stloc (mb, dar_release_slot);
5280 /* safehandle.DangerousAddRef (ref release) */
5281 mono_mb_emit_ldarg (mb, argnum);
5282 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5283 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5285 /* Pull the handle field from SafeHandle */
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5288 mono_mb_emit_byte (mb, CEE_LDIND_I);
5289 mono_mb_emit_stloc (mb, conv_arg);
5294 case MARSHAL_ACTION_PUSH:
5296 mono_mb_emit_ldloc_addr (mb, conv_arg);
5298 mono_mb_emit_ldloc (mb, conv_arg);
5301 case MARSHAL_ACTION_CONV_OUT: {
5302 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5303 int dar_release_slot = conv_arg + 1;
5306 if (!sh_dangerous_release)
5307 init_safe_handle ();
5313 * My tests indicate that ref SafeHandles parameters are not actually
5314 * passed by ref, but instead a new Handle is created regardless of
5315 * whether a change happens in the unmanaged side.
5317 * Also, the Handle is created before calling into unmanaged code,
5318 * but we do not support that mechanism (getting to the original
5319 * handle) and it makes no difference where we create this
5321 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5323 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5326 /* refval = new SafeHandleDerived ()*/
5327 mono_mb_emit_ldarg (mb, argnum);
5328 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5329 mono_mb_emit_byte (mb, CEE_STIND_REF);
5331 /* refval.handle = returned_handle */
5332 mono_mb_emit_ldarg (mb, argnum);
5333 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5334 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5335 mono_mb_emit_ldloc (mb, conv_arg);
5336 mono_mb_emit_byte (mb, CEE_STIND_I);
5338 mono_mb_emit_ldloc (mb, dar_release_slot);
5339 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5340 mono_mb_emit_ldarg (mb, argnum);
5341 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5342 mono_mb_patch_branch (mb, label_next);
5347 case MARSHAL_ACTION_CONV_RESULT: {
5348 MonoMethod *ctor = NULL;
5349 int intptr_handle_slot;
5351 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5352 mono_mb_emit_byte (mb, CEE_POP);
5353 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5357 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5359 mono_mb_emit_byte (mb, CEE_POP);
5360 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5363 /* Store the IntPtr results into a local */
5364 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5365 mono_mb_emit_stloc (mb, intptr_handle_slot);
5367 /* Create return value */
5368 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5369 mono_mb_emit_stloc (mb, 3);
5371 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5372 mono_mb_emit_ldloc (mb, 3);
5373 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5374 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5375 mono_mb_emit_byte (mb, CEE_STIND_I);
5379 case MARSHAL_ACTION_MANAGED_CONV_IN:
5380 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5383 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5384 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5387 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5388 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5391 printf ("Unhandled case for MarshalAction: %d\n", action);
5399 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5400 MonoMarshalSpec *spec, int conv_arg,
5401 MonoType **conv_arg_type, MarshalAction action)
5404 if (action == MARSHAL_ACTION_CONV_IN)
5405 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5407 MonoMethodBuilder *mb = m->mb;
5410 case MARSHAL_ACTION_CONV_IN: {
5411 MonoType *intptr_type;
5413 intptr_type = &mono_defaults.int_class->byval_arg;
5414 conv_arg = mono_mb_add_local (mb, intptr_type);
5415 *conv_arg_type = intptr_type;
5418 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5419 mono_mb_emit_exception_marshal_directive (mb, msg);
5422 mono_mb_emit_ldarg_addr (mb, argnum);
5423 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5424 mono_mb_emit_byte (mb, CEE_ADD);
5425 mono_mb_emit_byte (mb, CEE_LDIND_I);
5426 mono_mb_emit_stloc (mb, conv_arg);
5430 case MARSHAL_ACTION_PUSH:
5431 mono_mb_emit_ldloc (mb, conv_arg);
5434 case MARSHAL_ACTION_CONV_OUT: {
5435 /* no resource release required */
5439 case MARSHAL_ACTION_CONV_RESULT: {
5440 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5441 mono_mb_emit_exception_marshal_directive (mb, msg);
5445 case MARSHAL_ACTION_MANAGED_CONV_IN:
5446 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5449 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5450 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5453 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5454 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5457 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5465 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5466 MonoMarshalSpec *spec,
5467 int conv_arg, MonoType **conv_arg_type,
5468 MarshalAction action)
5471 if (action == MARSHAL_ACTION_CONV_IN)
5472 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5474 MonoMethodBuilder *mb = m->mb;
5475 MonoClass *klass = mono_class_from_mono_type (t);
5479 case MARSHAL_ACTION_CONV_IN:
5480 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5481 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5483 m->orig_conv_args [argnum] = 0;
5485 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5486 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5487 mono_mb_emit_exception_marshal_directive (mb, msg);
5491 if (klass->delegate) {
5493 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5494 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5495 mono_mb_emit_exception_marshal_directive (mb, msg);
5497 mono_mb_emit_byte (mb, CEE_LDNULL);
5498 mono_mb_emit_stloc (mb, conv_arg);
5500 mono_mb_emit_ldarg (mb, argnum);
5501 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5502 mono_mb_emit_stloc (mb, conv_arg);
5504 } else if (klass == mono_defaults.stringbuilder_class) {
5505 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5506 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5510 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5511 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5512 mono_mb_emit_exception_marshal_directive (mb, msg);
5518 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5522 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5523 mono_mb_emit_exception_marshal_directive (mb, msg);
5527 mono_mb_emit_ldarg (mb, argnum);
5529 mono_mb_emit_byte (mb, CEE_LDIND_I);
5531 mono_mb_emit_icall (mb, conv_to_icall (conv));
5532 mono_mb_emit_stloc (mb, conv_arg);
5533 } else if (klass->blittable) {
5534 mono_mb_emit_byte (mb, CEE_LDNULL);
5535 mono_mb_emit_stloc (mb, conv_arg);
5537 mono_mb_emit_ldarg (mb, argnum);
5538 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5540 mono_mb_emit_ldarg (mb, argnum);
5541 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5542 mono_mb_emit_stloc (mb, conv_arg);
5544 mono_mb_patch_branch (mb, pos);
5547 mono_mb_emit_byte (mb, CEE_LDNULL);
5548 mono_mb_emit_stloc (mb, conv_arg);
5551 /* we dont need any conversions for out parameters */
5552 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5555 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_byte (mb, CEE_LDIND_I);
5559 mono_mb_emit_ldarg (mb, argnum);
5560 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5561 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5564 /* store the address of the source into local variable 0 */
5565 mono_mb_emit_stloc (mb, 0);
5566 mono_mb_emit_ldloc (mb, 0);
5567 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5569 /* allocate space for the native struct and store the address */
5570 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5571 mono_mb_emit_byte (mb, CEE_PREFIX1);
5572 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5573 mono_mb_emit_stloc (mb, conv_arg);
5576 /* Need to store the original buffer so we can free it later */
5577 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5578 mono_mb_emit_ldloc (mb, conv_arg);
5579 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5582 /* set the src_ptr */
5583 mono_mb_emit_ldloc (mb, 0);
5584 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5585 mono_mb_emit_stloc (mb, 0);
5588 mono_mb_emit_ldloc (mb, conv_arg);
5589 mono_mb_emit_stloc (mb, 1);
5591 /* emit valuetype conversion code */
5592 emit_struct_conv (mb, klass, FALSE);
5594 mono_mb_patch_branch (mb, pos);
5598 case MARSHAL_ACTION_CONV_OUT:
5599 if (klass == mono_defaults.stringbuilder_class) {
5601 MonoMarshalNative encoding;
5602 MonoMarshalConv conv;
5604 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5605 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5607 g_assert (encoding != -1);
5610 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5614 mono_mb_emit_ldarg (mb, argnum);
5615 mono_mb_emit_ldloc (mb, conv_arg);
5618 case MONO_NATIVE_LPWSTR:
5619 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5621 case MONO_NATIVE_LPSTR:
5622 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5625 g_assert_not_reached ();
5628 mono_mb_emit_byte (mb, CEE_STIND_REF);
5630 mono_mb_emit_ldarg (mb, argnum);
5631 mono_mb_emit_ldloc (mb, conv_arg);
5633 mono_mb_emit_icall (mb, conv_to_icall (conv));
5637 mono_mb_emit_ldloc (mb, conv_arg);
5638 mono_mb_emit_icall (mb, mono_marshal_free);
5643 if (klass->delegate) {
5645 mono_mb_emit_ldarg (mb, argnum);
5646 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5647 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5648 mono_mb_emit_ldloc (mb, conv_arg);
5649 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5650 mono_mb_emit_byte (mb, CEE_STIND_REF);
5655 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5656 /* allocate a new object */
5657 mono_mb_emit_ldarg (mb, argnum);
5658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5659 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5660 mono_mb_emit_byte (mb, CEE_STIND_REF);
5663 /* dst = *argument */
5664 mono_mb_emit_ldarg (mb, argnum);
5667 mono_mb_emit_byte (mb, CEE_LDIND_I);
5669 mono_mb_emit_stloc (mb, 1);
5671 mono_mb_emit_ldloc (mb, 1);
5672 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5674 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5675 mono_mb_emit_ldloc (mb, 1);
5676 mono_mb_emit_icon (mb, sizeof (MonoObject));
5677 mono_mb_emit_byte (mb, CEE_ADD);
5678 mono_mb_emit_stloc (mb, 1);
5680 /* src = tmp_locals [i] */
5681 mono_mb_emit_ldloc (mb, conv_arg);
5682 mono_mb_emit_stloc (mb, 0);
5684 /* emit valuetype conversion code */
5685 emit_struct_conv (mb, klass, TRUE);
5687 /* Free the structure returned by the native code */
5688 emit_struct_free (mb, klass, conv_arg);
5690 if (m->orig_conv_args [argnum]) {
5692 * If the native function changed the pointer, then free
5693 * the original structure plus the new pointer.
5695 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5696 mono_mb_emit_ldloc (mb, conv_arg);
5697 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5699 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5700 g_assert (m->orig_conv_args [argnum]);
5702 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5705 mono_mb_emit_ldloc (mb, conv_arg);
5706 mono_mb_emit_icall (mb, mono_marshal_free);
5708 mono_mb_patch_branch (mb, pos2);
5712 /* Free the original structure passed to native code */
5713 emit_struct_free (mb, klass, conv_arg);
5715 mono_mb_patch_branch (mb, pos);
5718 case MARSHAL_ACTION_PUSH:
5720 mono_mb_emit_ldloc_addr (mb, conv_arg);
5722 mono_mb_emit_ldloc (mb, conv_arg);
5725 case MARSHAL_ACTION_CONV_RESULT:
5726 if (klass->delegate) {
5727 g_assert (!t->byref);
5728 mono_mb_emit_stloc (mb, 0);
5729 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5730 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5731 mono_mb_emit_ldloc (mb, 0);
5732 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5733 mono_mb_emit_stloc (mb, 3);
5736 mono_mb_emit_stloc (mb, 0);
5738 /* Make a copy since emit_conv modifies local 0 */
5739 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5740 mono_mb_emit_ldloc (mb, 0);
5741 mono_mb_emit_stloc (mb, loc);
5743 mono_mb_emit_byte (mb, CEE_LDNULL);
5744 mono_mb_emit_stloc (mb, 3);
5746 mono_mb_emit_ldloc (mb, 0);
5747 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5749 /* allocate result object */
5751 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5752 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5753 mono_mb_emit_stloc (mb, 3);
5757 mono_mb_emit_ldloc (mb, 3);
5758 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5759 mono_mb_emit_stloc (mb, 1);
5761 /* emit conversion code */
5762 emit_struct_conv (mb, klass, TRUE);
5764 emit_struct_free (mb, klass, loc);
5766 /* Free the pointer allocated by unmanaged code */
5767 mono_mb_emit_ldloc (mb, loc);
5768 mono_mb_emit_icall (mb, mono_marshal_free);
5769 mono_mb_patch_branch (mb, pos);
5773 case MARSHAL_ACTION_MANAGED_CONV_IN:
5774 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5776 if (klass->delegate) {
5777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5778 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5779 mono_mb_emit_ldarg (mb, argnum);
5781 mono_mb_emit_byte (mb, CEE_LDIND_I);
5782 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5783 mono_mb_emit_stloc (mb, conv_arg);
5787 if (klass == mono_defaults.stringbuilder_class) {
5788 MonoMarshalNative encoding;
5790 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5793 g_assert (encoding == MONO_NATIVE_LPSTR);
5795 g_assert (!t->byref);
5796 g_assert (encoding != -1);
5798 mono_mb_emit_ldarg (mb, argnum);
5799 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5800 mono_mb_emit_stloc (mb, conv_arg);
5804 /* The class can not have an automatic layout */
5805 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5806 mono_mb_emit_auto_layout_exception (mb, klass);
5810 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5811 mono_mb_emit_byte (mb, CEE_LDNULL);
5812 mono_mb_emit_stloc (mb, conv_arg);
5817 mono_mb_emit_ldarg (mb, argnum);
5821 /* Check for NULL and raise an exception */
5822 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5824 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5826 mono_mb_patch_branch (mb, pos2);
5827 mono_mb_emit_ldarg (mb, argnum);
5828 mono_mb_emit_byte (mb, CEE_LDIND_I);
5831 mono_mb_emit_stloc (mb, 0);
5833 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5834 mono_mb_emit_stloc (mb, conv_arg);
5836 mono_mb_emit_ldloc (mb, 0);
5837 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5839 /* Create and set dst */
5840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5841 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5842 mono_mb_emit_stloc (mb, conv_arg);
5843 mono_mb_emit_ldloc (mb, conv_arg);
5844 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5845 mono_mb_emit_stloc (mb, 1);
5847 /* emit valuetype conversion code */
5848 emit_struct_conv (mb, klass, TRUE);
5850 mono_mb_patch_branch (mb, pos);
5853 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5854 if (klass->delegate) {
5856 mono_mb_emit_ldarg (mb, argnum);
5857 mono_mb_emit_ldloc (mb, conv_arg);
5858 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5859 mono_mb_emit_byte (mb, CEE_STIND_I);
5865 /* Check for null */
5866 mono_mb_emit_ldloc (mb, conv_arg);
5867 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5868 mono_mb_emit_ldarg (mb, argnum);
5869 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5870 mono_mb_emit_byte (mb, CEE_STIND_REF);
5871 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5873 mono_mb_patch_branch (mb, pos);
5876 mono_mb_emit_ldloc (mb, conv_arg);
5877 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5878 mono_mb_emit_stloc (mb, 0);
5880 /* Allocate and set dest */
5881 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5882 mono_mb_emit_byte (mb, CEE_CONV_I);
5883 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5884 mono_mb_emit_stloc (mb, 1);
5886 /* Update argument pointer */
5887 mono_mb_emit_ldarg (mb, argnum);
5888 mono_mb_emit_ldloc (mb, 1);
5889 mono_mb_emit_byte (mb, CEE_STIND_I);
5891 /* emit valuetype conversion code */
5892 emit_struct_conv (mb, klass, FALSE);
5894 mono_mb_patch_branch (mb, pos2);
5895 } else if (klass == mono_defaults.stringbuilder_class) {
5896 // FIXME: What to do here ?
5898 /* byval [Out] marshalling */
5900 /* FIXME: Handle null */
5903 mono_mb_emit_ldloc (mb, conv_arg);
5904 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5905 mono_mb_emit_stloc (mb, 0);
5908 mono_mb_emit_ldarg (mb, argnum);
5909 mono_mb_emit_stloc (mb, 1);
5911 /* emit valuetype conversion code */
5912 emit_struct_conv (mb, klass, FALSE);
5916 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5917 if (klass->delegate) {
5918 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5919 mono_mb_emit_stloc (mb, 3);
5923 /* The class can not have an automatic layout */
5924 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5925 mono_mb_emit_auto_layout_exception (mb, klass);
5929 mono_mb_emit_stloc (mb, 0);
5930 /* Check for null */
5931 mono_mb_emit_ldloc (mb, 0);
5932 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5933 mono_mb_emit_byte (mb, CEE_LDNULL);
5934 mono_mb_emit_stloc (mb, 3);
5935 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5937 mono_mb_patch_branch (mb, pos);
5940 mono_mb_emit_ldloc (mb, 0);
5941 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5942 mono_mb_emit_stloc (mb, 0);
5944 /* Allocate and set dest */
5945 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5946 mono_mb_emit_byte (mb, CEE_CONV_I);
5947 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5948 mono_mb_emit_byte (mb, CEE_DUP);
5949 mono_mb_emit_stloc (mb, 1);
5950 mono_mb_emit_stloc (mb, 3);
5952 emit_struct_conv (mb, klass, FALSE);
5954 mono_mb_patch_branch (mb, pos2);
5958 g_assert_not_reached ();
5969 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5970 MonoMarshalSpec *spec,
5971 int conv_arg, MonoType **conv_arg_type,
5972 MarshalAction action)
5974 MonoMethodBuilder *mb = m->mb;
5975 static MonoMethod *get_object_for_native_variant = NULL;
5976 static MonoMethod *get_native_variant_for_object = NULL;
5978 if (!get_object_for_native_variant)
5979 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5980 g_assert (get_object_for_native_variant);
5982 if (!get_native_variant_for_object)
5983 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5984 g_assert (get_native_variant_for_object);
5987 case MARSHAL_ACTION_CONV_IN: {
5988 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5991 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5993 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5995 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5998 mono_mb_emit_ldarg (mb, argnum);
6000 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6001 mono_mb_emit_ldloc_addr (mb, conv_arg);
6002 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6006 case MARSHAL_ACTION_CONV_OUT: {
6007 static MonoMethod *variant_clear = NULL;
6010 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6011 g_assert (variant_clear);
6014 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6015 mono_mb_emit_ldarg (mb, argnum);
6016 mono_mb_emit_ldloc_addr (mb, conv_arg);
6017 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6018 mono_mb_emit_byte (mb, CEE_STIND_REF);
6021 mono_mb_emit_ldloc_addr (mb, conv_arg);
6022 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6026 case MARSHAL_ACTION_PUSH:
6028 mono_mb_emit_ldloc_addr (mb, conv_arg);
6030 mono_mb_emit_ldloc (mb, conv_arg);
6033 case MARSHAL_ACTION_CONV_RESULT: {
6034 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6035 mono_mb_emit_exception_marshal_directive (mb, msg);
6039 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6040 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6043 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6045 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6047 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6051 mono_mb_emit_ldarg (mb, argnum);
6053 mono_mb_emit_ldarg_addr (mb, argnum);
6054 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6055 mono_mb_emit_stloc (mb, conv_arg);
6059 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6060 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6061 mono_mb_emit_ldloc (mb, conv_arg);
6062 mono_mb_emit_ldarg (mb, argnum);
6063 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6068 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6069 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6070 mono_mb_emit_exception_marshal_directive (mb, msg);
6075 g_assert_not_reached ();
6081 #endif /* DISABLE_COM */
6082 #endif /* DISABLE_JIT */
6085 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6087 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6088 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6090 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6092 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6104 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6105 MonoMarshalSpec *spec,
6106 int conv_arg, MonoType **conv_arg_type,
6107 MarshalAction action)
6111 case MARSHAL_ACTION_CONV_IN:
6112 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6114 case MARSHAL_ACTION_MANAGED_CONV_IN:
6115 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6119 MonoMethodBuilder *mb = m->mb;
6120 MonoClass *klass = mono_class_from_mono_type (t);
6121 gboolean need_convert, need_free;
6122 MonoMarshalNative encoding;
6124 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6127 case MARSHAL_ACTION_CONV_IN:
6128 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6129 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6131 if (klass->element_class->blittable) {
6132 mono_mb_emit_ldarg (mb, argnum);
6134 mono_mb_emit_byte (mb, CEE_LDIND_I);
6135 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6136 mono_mb_emit_stloc (mb, conv_arg);
6139 guint32 label1, label2, label3;
6140 int index_var, src_var, dest_ptr, esize;
6141 MonoMarshalConv conv;
6142 gboolean is_string = FALSE;
6144 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6146 eklass = klass->element_class;
6148 if (eklass == mono_defaults.string_class) {
6150 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6152 else if (eklass == mono_defaults.stringbuilder_class) {
6154 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6157 conv = (MonoMarshalConv)-1;
6159 if (is_string && conv == -1) {
6160 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6161 mono_mb_emit_exception_marshal_directive (mb, msg);
6165 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6166 mono_mb_emit_ldarg (mb, argnum);
6168 mono_mb_emit_byte (mb, CEE_LDIND_I);
6169 mono_mb_emit_stloc (mb, src_var);
6172 mono_mb_emit_ldloc (mb, src_var);
6173 mono_mb_emit_stloc (mb, conv_arg);
6174 mono_mb_emit_ldloc (mb, src_var);
6175 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6178 esize = sizeof (gpointer);
6179 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6180 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6182 esize = mono_class_native_size (eklass, NULL);
6184 /* allocate space for the native struct and store the address */
6185 mono_mb_emit_icon (mb, esize);
6186 mono_mb_emit_ldloc (mb, src_var);
6187 mono_mb_emit_byte (mb, CEE_LDLEN);
6189 if (eklass == mono_defaults.string_class) {
6190 /* Make the array bigger for the terminating null */
6191 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6192 mono_mb_emit_byte (mb, CEE_ADD);
6194 mono_mb_emit_byte (mb, CEE_MUL);
6195 mono_mb_emit_byte (mb, CEE_PREFIX1);
6196 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6197 mono_mb_emit_stloc (mb, conv_arg);
6199 mono_mb_emit_ldloc (mb, conv_arg);
6200 mono_mb_emit_stloc (mb, dest_ptr);
6202 /* Emit marshalling loop */
6203 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6204 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6205 mono_mb_emit_stloc (mb, index_var);
6206 label2 = mono_mb_get_label (mb);
6207 mono_mb_emit_ldloc (mb, index_var);
6208 mono_mb_emit_ldloc (mb, src_var);
6209 mono_mb_emit_byte (mb, CEE_LDLEN);
6210 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6212 /* Emit marshalling code */
6215 mono_mb_emit_ldloc (mb, dest_ptr);
6216 mono_mb_emit_ldloc (mb, src_var);
6217 mono_mb_emit_ldloc (mb, index_var);
6218 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6219 mono_mb_emit_icall (mb, conv_to_icall (conv));
6220 mono_mb_emit_byte (mb, CEE_STIND_I);
6222 /* set the src_ptr */
6223 mono_mb_emit_ldloc (mb, src_var);
6224 mono_mb_emit_ldloc (mb, index_var);
6225 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6226 mono_mb_emit_stloc (mb, 0);
6229 mono_mb_emit_ldloc (mb, dest_ptr);
6230 mono_mb_emit_stloc (mb, 1);
6232 /* emit valuetype conversion code */
6233 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6236 mono_mb_emit_add_to_local (mb, index_var, 1);
6237 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6239 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6241 mono_mb_patch_branch (mb, label3);
6243 if (eklass == mono_defaults.string_class) {
6244 /* Null terminate */
6245 mono_mb_emit_ldloc (mb, dest_ptr);
6246 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6247 mono_mb_emit_byte (mb, CEE_STIND_REF);
6250 mono_mb_patch_branch (mb, label1);
6255 case MARSHAL_ACTION_CONV_OUT:
6256 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6257 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);
6258 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6261 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6262 int param_num = spec->data.array_data.param_num;
6263 MonoType *param_type;
6265 param_type = m->sig->params [param_num];
6267 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6268 char *msg = g_strdup ("Not implemented.");
6269 mono_mb_emit_exception_marshal_directive (mb, msg);
6274 mono_mb_emit_ldarg (mb, argnum);
6276 /* Create the managed array */
6277 mono_mb_emit_ldarg (mb, param_num);
6278 if (m->sig->params [param_num]->byref)
6279 // FIXME: Support other types
6280 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6281 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6282 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6283 /* Store into argument */
6284 mono_mb_emit_byte (mb, CEE_STIND_I);
6288 if (need_convert || need_free) {
6289 /* FIXME: Optimize blittable case */
6291 guint32 label1, label2, label3;
6292 int index_var, src_ptr, loc, esize;
6294 eklass = klass->element_class;
6295 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6296 esize = sizeof (gpointer);
6297 else if (eklass == mono_defaults.char_class)
6298 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6300 esize = mono_class_native_size (eklass, NULL);
6301 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6302 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6305 mono_mb_emit_ldarg (mb, argnum);
6307 mono_mb_emit_byte (mb, CEE_LDIND_I);
6308 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6310 mono_mb_emit_ldloc (mb, conv_arg);
6311 mono_mb_emit_stloc (mb, src_ptr);
6313 /* Emit marshalling loop */
6314 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6315 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6316 mono_mb_emit_stloc (mb, index_var);
6317 label2 = mono_mb_get_label (mb);
6318 mono_mb_emit_ldloc (mb, index_var);
6319 mono_mb_emit_ldarg (mb, argnum);
6321 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6322 mono_mb_emit_byte (mb, CEE_LDLEN);
6323 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6325 /* Emit marshalling code */
6327 if (eklass == mono_defaults.stringbuilder_class) {
6328 gboolean need_free2;
6329 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6331 g_assert (conv != -1);
6334 mono_mb_emit_ldarg (mb, argnum);
6336 mono_mb_emit_byte (mb, CEE_LDIND_I);
6337 mono_mb_emit_ldloc (mb, index_var);
6338 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6341 mono_mb_emit_ldloc (mb, src_ptr);
6342 mono_mb_emit_byte (mb, CEE_LDIND_I);
6344 mono_mb_emit_icall (mb, conv_to_icall (conv));
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);
6354 else if (eklass == mono_defaults.string_class) {
6357 mono_mb_emit_ldloc (mb, src_ptr);
6358 mono_mb_emit_byte (mb, CEE_LDIND_I);
6360 mono_mb_emit_icall (mb, mono_marshal_free);
6365 /* set the src_ptr */
6366 mono_mb_emit_ldloc (mb, src_ptr);
6367 mono_mb_emit_stloc (mb, 0);
6370 mono_mb_emit_ldarg (mb, argnum);
6372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6373 mono_mb_emit_ldloc (mb, index_var);
6374 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6375 mono_mb_emit_stloc (mb, 1);
6377 /* emit valuetype conversion code */
6378 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6382 mono_mb_emit_ldloc (mb, src_ptr);
6383 mono_mb_emit_stloc (mb, loc);
6384 mono_mb_emit_ldloc (mb, loc);
6386 emit_struct_free (mb, eklass, loc);
6390 mono_mb_emit_add_to_local (mb, index_var, 1);
6391 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6393 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6395 mono_mb_patch_branch (mb, label1);
6396 mono_mb_patch_branch (mb, label3);
6399 if (klass->element_class->blittable) {
6400 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6402 mono_mb_emit_ldarg (mb, argnum);
6404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6405 mono_mb_emit_ldloc (mb, conv_arg);
6406 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6411 case MARSHAL_ACTION_PUSH:
6413 mono_mb_emit_ldloc_addr (mb, conv_arg);
6415 mono_mb_emit_ldloc (mb, conv_arg);
6418 case MARSHAL_ACTION_CONV_RESULT:
6419 /* fixme: we need conversions here */
6420 mono_mb_emit_stloc (mb, 3);
6423 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6425 guint32 label1, label2, label3;
6426 int index_var, src_ptr, esize, param_num, num_elem;
6427 MonoMarshalConv conv;
6428 gboolean is_string = FALSE;
6430 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6431 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6434 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6435 mono_mb_emit_exception_marshal_directive (mb, msg);
6439 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6440 mono_mb_emit_exception_marshal_directive (mb, msg);
6443 if (spec->native != MONO_NATIVE_LPARRAY) {
6444 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6445 mono_mb_emit_exception_marshal_directive (mb, msg);
6449 /* FIXME: t is from the method which is wrapped, not the delegate type */
6450 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6452 param_num = spec->data.array_data.param_num;
6453 num_elem = spec->data.array_data.num_elem;
6454 if (spec->data.array_data.elem_mult == 0)
6455 /* param_num is not specified */
6458 if (param_num == -1) {
6459 if (num_elem <= 0) {
6460 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6461 mono_mb_emit_exception_marshal_directive (mb, msg);
6466 /* FIXME: Optimize blittable case */
6468 eklass = klass->element_class;
6469 if (eklass == mono_defaults.string_class) {
6471 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6473 else if (eklass == mono_defaults.stringbuilder_class) {
6475 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6478 conv = (MonoMarshalConv)-1;
6480 mono_marshal_load_type_info (eklass);
6483 esize = sizeof (gpointer);
6485 esize = mono_class_native_size (eklass, NULL);
6486 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6488 mono_mb_emit_byte (mb, CEE_LDNULL);
6489 mono_mb_emit_stloc (mb, conv_arg);
6491 /* Check param index */
6492 if (param_num != -1) {
6493 if (param_num >= m->sig->param_count) {
6494 char *msg = g_strdup ("Array size control parameter index is out of range.");
6495 mono_mb_emit_exception_marshal_directive (mb, msg);
6498 switch (m->sig->params [param_num]->type) {
6511 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6512 mono_mb_emit_exception_marshal_directive (mb, msg);
6519 mono_mb_emit_ldarg (mb, argnum);
6520 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6522 mono_mb_emit_ldarg (mb, argnum);
6523 mono_mb_emit_stloc (mb, src_ptr);
6525 /* Create managed array */
6527 * The LPArray marshalling spec says that sometimes param_num starts
6528 * from 1, sometimes it starts from 0. But MS seems to allways start
6532 if (param_num == -1) {
6533 mono_mb_emit_icon (mb, num_elem);
6535 mono_mb_emit_ldarg (mb, param_num);
6537 mono_mb_emit_icon (mb, num_elem);
6538 mono_mb_emit_byte (mb, CEE_ADD);
6540 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6543 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6544 mono_mb_emit_stloc (mb, conv_arg);
6546 if (eklass->blittable) {
6547 mono_mb_emit_ldloc (mb, conv_arg);
6548 mono_mb_emit_byte (mb, CEE_CONV_I);
6549 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6550 mono_mb_emit_byte (mb, CEE_ADD);
6551 mono_mb_emit_ldarg (mb, argnum);
6552 mono_mb_emit_ldloc (mb, conv_arg);
6553 mono_mb_emit_byte (mb, CEE_LDLEN);
6554 mono_mb_emit_icon (mb, esize);
6555 mono_mb_emit_byte (mb, CEE_MUL);
6556 mono_mb_emit_byte (mb, CEE_PREFIX1);
6557 mono_mb_emit_byte (mb, CEE_CPBLK);
6561 /* Emit marshalling loop */
6562 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6563 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6564 mono_mb_emit_stloc (mb, index_var);
6565 label2 = mono_mb_get_label (mb);
6566 mono_mb_emit_ldloc (mb, index_var);
6567 mono_mb_emit_ldloc (mb, conv_arg);
6568 mono_mb_emit_byte (mb, CEE_LDLEN);
6569 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6571 /* Emit marshalling code */
6573 g_assert (conv != -1);
6575 mono_mb_emit_ldloc (mb, conv_arg);
6576 mono_mb_emit_ldloc (mb, index_var);
6578 mono_mb_emit_ldloc (mb, src_ptr);
6579 mono_mb_emit_byte (mb, CEE_LDIND_I);
6581 mono_mb_emit_icall (mb, conv_to_icall (conv));
6582 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6585 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6586 mono_mb_emit_exception_marshal_directive (mb, msg);
6590 mono_mb_emit_add_to_local (mb, index_var, 1);
6591 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6593 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6595 mono_mb_patch_branch (mb, label1);
6596 mono_mb_patch_branch (mb, label3);
6600 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6602 guint32 label1, label2, label3;
6603 int index_var, dest_ptr, esize, param_num, num_elem;
6604 MonoMarshalConv conv;
6605 gboolean is_string = FALSE;
6608 /* Already handled in CONV_IN */
6611 /* These are already checked in CONV_IN */
6612 g_assert (!t->byref);
6613 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6614 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6616 param_num = spec->data.array_data.param_num;
6617 num_elem = spec->data.array_data.num_elem;
6619 if (spec->data.array_data.elem_mult == 0)
6620 /* param_num is not specified */
6623 if (param_num == -1) {
6624 if (num_elem <= 0) {
6625 g_assert_not_reached ();
6629 /* FIXME: Optimize blittable case */
6631 eklass = klass->element_class;
6632 if (eklass == mono_defaults.string_class) {
6634 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6636 else if (eklass == mono_defaults.stringbuilder_class) {
6638 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6641 conv = (MonoMarshalConv)-1;
6643 mono_marshal_load_type_info (eklass);
6646 esize = sizeof (gpointer);
6648 esize = mono_class_native_size (eklass, NULL);
6650 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6653 mono_mb_emit_ldloc (mb, conv_arg);
6654 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6656 mono_mb_emit_ldarg (mb, argnum);
6657 mono_mb_emit_stloc (mb, dest_ptr);
6659 if (eklass->blittable) {
6661 mono_mb_emit_ldarg (mb, argnum);
6663 mono_mb_emit_ldloc (mb, conv_arg);
6664 mono_mb_emit_byte (mb, CEE_CONV_I);
6665 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6666 mono_mb_emit_byte (mb, CEE_ADD);
6668 mono_mb_emit_ldloc (mb, conv_arg);
6669 mono_mb_emit_byte (mb, CEE_LDLEN);
6670 mono_mb_emit_icon (mb, esize);
6671 mono_mb_emit_byte (mb, CEE_MUL);
6672 mono_mb_emit_byte (mb, CEE_PREFIX1);
6673 mono_mb_emit_byte (mb, CEE_CPBLK);
6677 /* Emit marshalling loop */
6678 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6679 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6680 mono_mb_emit_stloc (mb, index_var);
6681 label2 = mono_mb_get_label (mb);
6682 mono_mb_emit_ldloc (mb, index_var);
6683 mono_mb_emit_ldloc (mb, conv_arg);
6684 mono_mb_emit_byte (mb, CEE_LDLEN);
6685 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6687 /* Emit marshalling code */
6689 g_assert (conv != -1);
6692 mono_mb_emit_ldloc (mb, dest_ptr);
6695 mono_mb_emit_ldloc (mb, conv_arg);
6696 mono_mb_emit_ldloc (mb, index_var);
6698 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6700 mono_mb_emit_icall (mb, conv_to_icall (conv));
6701 mono_mb_emit_byte (mb, CEE_STIND_I);
6704 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6705 mono_mb_emit_exception_marshal_directive (mb, msg);
6709 mono_mb_emit_add_to_local (mb, index_var, 1);
6710 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6712 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6714 mono_mb_patch_branch (mb, label1);
6715 mono_mb_patch_branch (mb, label3);
6719 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6721 guint32 label1, label2, label3;
6722 int index_var, src, dest, esize;
6723 MonoMarshalConv conv = (MonoMarshalConv)-1;
6724 gboolean is_string = FALSE;
6726 g_assert (!t->byref);
6728 eklass = klass->element_class;
6730 mono_marshal_load_type_info (eklass);
6732 if (eklass == mono_defaults.string_class) {
6734 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6737 g_assert_not_reached ();
6741 esize = sizeof (gpointer);
6742 else if (eklass == mono_defaults.char_class)
6743 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6745 esize = mono_class_native_size (eklass, NULL);
6747 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6748 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6750 mono_mb_emit_stloc (mb, src);
6751 mono_mb_emit_ldloc (mb, src);
6752 mono_mb_emit_stloc (mb, 3);
6754 /* Check for null */
6755 mono_mb_emit_ldloc (mb, src);
6756 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6758 /* Allocate native array */
6759 mono_mb_emit_icon (mb, esize);
6760 mono_mb_emit_ldloc (mb, src);
6761 mono_mb_emit_byte (mb, CEE_LDLEN);
6763 if (eklass == mono_defaults.string_class) {
6764 /* Make the array bigger for the terminating null */
6765 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6766 mono_mb_emit_byte (mb, CEE_ADD);
6768 mono_mb_emit_byte (mb, CEE_MUL);
6769 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6770 mono_mb_emit_stloc (mb, dest);
6771 mono_mb_emit_ldloc (mb, dest);
6772 mono_mb_emit_stloc (mb, 3);
6774 /* Emit marshalling loop */
6775 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6776 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6777 mono_mb_emit_stloc (mb, index_var);
6778 label2 = mono_mb_get_label (mb);
6779 mono_mb_emit_ldloc (mb, index_var);
6780 mono_mb_emit_ldloc (mb, src);
6781 mono_mb_emit_byte (mb, CEE_LDLEN);
6782 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6784 /* Emit marshalling code */
6786 g_assert (conv != -1);
6789 mono_mb_emit_ldloc (mb, dest);
6792 mono_mb_emit_ldloc (mb, src);
6793 mono_mb_emit_ldloc (mb, index_var);
6795 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6797 mono_mb_emit_icall (mb, conv_to_icall (conv));
6798 mono_mb_emit_byte (mb, CEE_STIND_I);
6801 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6802 mono_mb_emit_exception_marshal_directive (mb, msg);
6806 mono_mb_emit_add_to_local (mb, index_var, 1);
6807 mono_mb_emit_add_to_local (mb, dest, esize);
6809 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6811 mono_mb_patch_branch (mb, label3);
6812 mono_mb_patch_branch (mb, label1);
6816 g_assert_not_reached ();
6823 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6826 return &mono_defaults.int32_class->byval_arg;
6828 switch (spec->native) {
6829 case MONO_NATIVE_I1:
6830 case MONO_NATIVE_U1:
6831 return &mono_defaults.byte_class->byval_arg;
6832 case MONO_NATIVE_VARIANTBOOL:
6833 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6834 return &mono_defaults.int16_class->byval_arg;
6835 case MONO_NATIVE_BOOLEAN:
6836 return &mono_defaults.int32_class->byval_arg;
6838 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6839 return &mono_defaults.int32_class->byval_arg;
6845 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6847 MonoClass* conv_arg_class = mono_defaults.int32_class;
6849 switch (spec->native) {
6850 case MONO_NATIVE_I1:
6851 case MONO_NATIVE_U1:
6852 conv_arg_class = mono_defaults.byte_class;
6853 if (ldop) *ldop = CEE_LDIND_I1;
6855 case MONO_NATIVE_VARIANTBOOL:
6856 conv_arg_class = mono_defaults.int16_class;
6857 if (ldop) *ldop = CEE_LDIND_I2;
6859 case MONO_NATIVE_BOOLEAN:
6862 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6865 return conv_arg_class;
6869 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6870 MonoMarshalSpec *spec,
6871 int conv_arg, MonoType **conv_arg_type,
6872 MarshalAction action)
6876 case MARSHAL_ACTION_CONV_IN:
6878 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6880 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6883 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6884 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6886 *conv_arg_type = &conv_arg_class->this_arg;
6888 *conv_arg_type = &conv_arg_class->byval_arg;
6894 MonoMethodBuilder *mb = m->mb;
6897 case MARSHAL_ACTION_CONV_IN: {
6898 MonoType *local_type;
6900 guint8 ldc_op = CEE_LDC_I4_1;
6902 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6904 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6906 *conv_arg_type = local_type;
6907 conv_arg = mono_mb_add_local (mb, local_type);
6909 mono_mb_emit_ldarg (mb, argnum);
6911 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6912 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6913 mono_mb_emit_byte (mb, ldc_op);
6914 mono_mb_emit_stloc (mb, conv_arg);
6915 mono_mb_patch_branch (mb, label_false);
6920 case MARSHAL_ACTION_CONV_OUT:
6922 int label_false, label_end;
6926 mono_mb_emit_ldarg (mb, argnum);
6927 mono_mb_emit_ldloc (mb, conv_arg);
6929 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6930 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6932 label_end = mono_mb_emit_branch (mb, CEE_BR);
6933 mono_mb_patch_branch (mb, label_false);
6934 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6935 mono_mb_patch_branch (mb, label_end);
6937 mono_mb_emit_byte (mb, CEE_STIND_I1);
6941 case MARSHAL_ACTION_PUSH:
6943 mono_mb_emit_ldloc_addr (mb, conv_arg);
6945 mono_mb_emit_ldloc (mb, conv_arg);
6947 mono_mb_emit_ldarg (mb, argnum);
6950 case MARSHAL_ACTION_CONV_RESULT:
6951 /* maybe we need to make sure that it fits within 8 bits */
6952 mono_mb_emit_stloc (mb, 3);
6955 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6956 MonoClass* conv_arg_class = mono_defaults.int32_class;
6957 guint8 ldop = CEE_LDIND_I4;
6958 int label_null, label_false;
6960 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6961 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6964 *conv_arg_type = &conv_arg_class->this_arg;
6966 *conv_arg_type = &conv_arg_class->byval_arg;
6969 mono_mb_emit_ldarg (mb, argnum);
6973 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6974 mono_mb_emit_ldarg (mb, argnum);
6975 mono_mb_emit_byte (mb, ldop);
6979 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6980 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6981 mono_mb_emit_stloc (mb, conv_arg);
6982 mono_mb_patch_branch (mb, label_false);
6985 mono_mb_patch_branch (mb, label_null);
6989 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6990 guint8 stop = CEE_STIND_I4;
6991 guint8 ldc_op = CEE_LDC_I4_1;
6992 int label_null,label_false, label_end;;
6997 switch (spec->native) {
6998 case MONO_NATIVE_I1:
6999 case MONO_NATIVE_U1:
7000 stop = CEE_STIND_I1;
7002 case MONO_NATIVE_VARIANTBOOL:
7003 stop = CEE_STIND_I2;
7004 ldc_op = CEE_LDC_I4_M1;
7012 mono_mb_emit_ldarg (mb, argnum);
7013 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7015 mono_mb_emit_ldarg (mb, argnum);
7016 mono_mb_emit_ldloc (mb, conv_arg);
7018 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7019 mono_mb_emit_byte (mb, ldc_op);
7020 label_end = mono_mb_emit_branch (mb, CEE_BR);
7022 mono_mb_patch_branch (mb, label_false);
7023 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7024 mono_mb_patch_branch (mb, label_end);
7026 mono_mb_emit_byte (mb, stop);
7027 mono_mb_patch_branch (mb, label_null);
7032 g_assert_not_reached ();
7039 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7040 MonoMarshalSpec *spec, int conv_arg,
7041 MonoType **conv_arg_type, MarshalAction action)
7044 MonoMethodBuilder *mb = m->mb;
7047 case MARSHAL_ACTION_CONV_IN:
7048 /* MS seems to allow this in some cases, ie. bxc #158 */
7050 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7051 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7052 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7057 case MARSHAL_ACTION_PUSH:
7058 mono_mb_emit_ldarg (mb, argnum);
7061 case MARSHAL_ACTION_CONV_RESULT:
7062 /* no conversions necessary */
7063 mono_mb_emit_stloc (mb, 3);
7074 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7075 MonoMarshalSpec *spec, int conv_arg,
7076 MonoType **conv_arg_type, MarshalAction action)
7079 MonoMethodBuilder *mb = m->mb;
7082 case MARSHAL_ACTION_PUSH:
7083 /* fixme: dont know how to marshal that. We cant simply
7084 * convert it to a one byte UTF8 character, because an
7085 * unicode character may need more that one byte in UTF8 */
7086 mono_mb_emit_ldarg (mb, argnum);
7089 case MARSHAL_ACTION_CONV_RESULT:
7090 /* fixme: we need conversions here */
7091 mono_mb_emit_stloc (mb, 3);
7102 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7103 MonoMarshalSpec *spec, int conv_arg,
7104 MonoType **conv_arg_type, MarshalAction action)
7107 MonoMethodBuilder *mb = m->mb;
7110 case MARSHAL_ACTION_PUSH:
7111 mono_mb_emit_ldarg (mb, argnum);
7114 case MARSHAL_ACTION_CONV_RESULT:
7115 /* no conversions necessary */
7116 mono_mb_emit_stloc (mb, 3);
7127 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7128 MonoMarshalSpec *spec, int conv_arg,
7129 MonoType **conv_arg_type, MarshalAction action)
7131 /* Ensure that we have marshalling info for this param */
7132 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7134 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7135 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7137 if (spec && spec->native == MONO_NATIVE_ASANY)
7138 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7141 case MONO_TYPE_VALUETYPE:
7142 if (t->data.klass == mono_defaults.handleref_class)
7143 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7145 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7146 case MONO_TYPE_STRING:
7147 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7148 case MONO_TYPE_CLASS:
7149 case MONO_TYPE_OBJECT:
7151 if (spec && spec->native == MONO_NATIVE_STRUCT)
7152 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7154 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7155 spec->native == MONO_NATIVE_IDISPATCH ||
7156 spec->native == MONO_NATIVE_INTERFACE))
7157 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7158 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7159 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7160 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7161 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7164 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7165 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7166 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7168 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7169 case MONO_TYPE_ARRAY:
7170 case MONO_TYPE_SZARRAY:
7171 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7172 case MONO_TYPE_BOOLEAN:
7173 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7175 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7176 case MONO_TYPE_CHAR:
7177 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7190 case MONO_TYPE_FNPTR:
7191 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7192 case MONO_TYPE_GENERICINST:
7193 if (mono_type_generic_inst_is_valuetype (t))
7194 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7196 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7204 * mono_marshal_emit_native_wrapper:
7205 * @image: the image to use for looking up custom marshallers
7206 * @sig: The signature of the native function
7207 * @piinfo: Marshalling information
7208 * @mspecs: Marshalling information
7209 * @aot: whenever the created method will be compiled by the AOT compiler
7210 * @method: if non-NULL, the pinvoke method to call
7211 * @check_exceptions: Whenever to check for pending exceptions after the native call
7212 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7214 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7217 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)
7219 EmitMarshalContext m;
7220 MonoMethodSignature *csig;
7222 int i, argnum, *tmp_locals;
7223 int type, param_shift = 0;
7224 static MonoMethodSignature *get_last_error_sig = NULL;
7225 int coop_gc_stack_dummy, coop_gc_var;
7227 memset (&m, 0, sizeof (m));
7232 /* we copy the signature, so that we can set pinvoke to 0 */
7234 /* The function address is passed as the first argument */
7235 g_assert (!sig->hasthis);
7238 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7246 /* we allocate local for use with emit_struct_conv() */
7247 /* allocate local 0 (pointer) src_ptr */
7248 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7249 /* allocate local 1 (pointer) dst_ptr */
7250 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7251 /* allocate local 2 (boolean) delete_old */
7252 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7254 /* delete_old = FALSE */
7255 mono_mb_emit_icon (mb, 0);
7256 mono_mb_emit_stloc (mb, 2);
7258 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7259 /* allocate local 3 to store the return value */
7260 mono_mb_add_local (mb, sig->ret);
7263 if (mono_threads_is_coop_enabled ()) {
7264 /* local 4, dummy local used to get a stack address for suspend funcs */
7265 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7266 /* local 5, the local to be used when calling the suspend funcs */
7267 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7270 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7271 /* Return type custom marshaling */
7273 * Since we can't determine the return type of the unmanaged function,
7274 * we assume it returns a pointer, and pass that pointer to
7275 * MarshalNativeToManaged.
7277 csig->ret = &mono_defaults.int_class->byval_arg;
7280 /* we first do all conversions */
7281 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7282 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7284 for (i = 0; i < sig->param_count; i ++) {
7285 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7288 /* push all arguments */
7291 mono_mb_emit_byte (mb, CEE_LDARG_0);
7293 for (i = 0; i < sig->param_count; i++) {
7294 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7297 if (mono_threads_is_coop_enabled ()) {
7298 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7299 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7300 mono_mb_emit_stloc (mb, coop_gc_var);
7303 /* call the native method */
7305 mono_mb_emit_byte (mb, CEE_LDARG_0);
7306 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7307 mono_mb_emit_byte (mb, CEE_LDIND_I);
7308 mono_mb_emit_calli (mb, csig);
7309 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7311 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7313 g_assert_not_reached ();
7318 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7319 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7320 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7321 mono_mb_emit_calli (mb, csig);
7323 mono_mb_emit_native_call (mb, csig, func);
7327 /* Set LastError if needed */
7328 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7329 if (!get_last_error_sig) {
7330 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7331 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7332 get_last_error_sig->pinvoke = 1;
7337 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7338 * clobber its value.
7340 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7341 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7343 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7347 if (mono_threads_is_coop_enabled ()) {
7348 mono_mb_emit_ldloc (mb, coop_gc_var);
7349 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7350 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7353 /* convert the result */
7354 if (!sig->ret->byref) {
7355 MonoMarshalSpec *spec = mspecs [0];
7356 type = sig->ret->type;
7358 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7359 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7364 case MONO_TYPE_VOID:
7366 case MONO_TYPE_VALUETYPE:
7367 klass = sig->ret->data.klass;
7368 if (klass->enumtype) {
7369 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7372 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7386 case MONO_TYPE_FNPTR:
7387 case MONO_TYPE_STRING:
7388 case MONO_TYPE_CLASS:
7389 case MONO_TYPE_OBJECT:
7390 case MONO_TYPE_BOOLEAN:
7391 case MONO_TYPE_ARRAY:
7392 case MONO_TYPE_SZARRAY:
7393 case MONO_TYPE_CHAR:
7395 case MONO_TYPE_GENERICINST:
7396 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7398 case MONO_TYPE_TYPEDBYREF:
7400 g_warning ("return type 0x%02x unknown", sig->ret->type);
7401 g_assert_not_reached ();
7405 mono_mb_emit_stloc (mb, 3);
7409 * Need to call this after converting the result since MONO_VTADDR needs
7410 * to be adjacent to the call instruction.
7412 if (check_exceptions)
7413 emit_thread_interrupt_checkpoint (mb);
7415 /* we need to convert byref arguments back and free string arrays */
7416 for (i = 0; i < sig->param_count; i++) {
7417 MonoType *t = sig->params [i];
7418 MonoMarshalSpec *spec = mspecs [i + 1];
7420 argnum = i + param_shift;
7422 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7423 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7428 case MONO_TYPE_STRING:
7429 case MONO_TYPE_VALUETYPE:
7430 case MONO_TYPE_CLASS:
7431 case MONO_TYPE_OBJECT:
7432 case MONO_TYPE_SZARRAY:
7433 case MONO_TYPE_BOOLEAN:
7434 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7441 if (!MONO_TYPE_IS_VOID(sig->ret))
7442 mono_mb_emit_ldloc (mb, 3);
7444 mono_mb_emit_byte (mb, CEE_RET);
7446 #endif /* DISABLE_JIT */
7449 * mono_marshal_get_native_wrapper:
7450 * @method: The MonoMethod to wrap.
7451 * @check_exceptions: Whenever to check for pending exceptions
7453 * generates IL code for the pinvoke wrapper (the generated method
7454 * calls the unmanaged code in piinfo->addr)
7455 * The wrapper info for the wrapper is a WrapperInfo structure.
7458 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7460 MonoMethodSignature *sig, *csig;
7461 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7462 MonoMethodBuilder *mb;
7463 MonoMarshalSpec **mspecs;
7466 gboolean pinvoke = FALSE;
7469 const char *exc_class = "MissingMethodException";
7470 const char *exc_arg = NULL;
7473 g_assert (method != NULL);
7474 g_assert (mono_method_signature (method)->pinvoke);
7476 GHashTable **cache_ptr;
7479 if (check_exceptions)
7480 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7482 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7484 if (check_exceptions)
7485 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7487 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7490 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7492 if ((res = mono_marshal_find_in_cache (cache, method)))
7495 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7496 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7500 return mono_cominterop_get_native_wrapper (method);
7502 g_assert_not_reached ();
7506 sig = mono_method_signature (method);
7508 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7509 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7512 if (!piinfo->addr) {
7514 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7515 exc_arg = "Method contains unsupported native code";
7517 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7519 piinfo->addr = mono_lookup_internal_call (method);
7523 /* hack - redirect certain string constructors to CreateString */
7524 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7525 g_assert (!pinvoke);
7526 g_assert (method->string_ctor);
7527 g_assert (sig->hasthis);
7529 /* CreateString returns a value */
7530 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7531 csig->ret = &mono_defaults.string_class->byval_arg;
7535 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7536 if (!strcmp ("CreateString", res->name) &&
7537 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7540 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7541 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7543 /* create a wrapper to preserve .ctor in stack trace */
7544 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7547 mono_mb_emit_byte (mb, CEE_LDARG_0);
7548 for (i = 1; i <= csig->param_count; i++)
7549 mono_mb_emit_ldarg (mb, i);
7550 mono_mb_emit_managed_call (mb, res, NULL);
7551 mono_mb_emit_byte (mb, CEE_RET);
7554 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7555 info->d.string_ctor.method = method;
7557 /* use native_wrapper_cache because internal calls are looked up there */
7558 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7559 csig->param_count + 1, info, NULL);
7566 /* exception will be thrown */
7567 piinfo->addr = NULL;
7568 g_warning ("cannot find CreateString for .ctor");
7571 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7573 mb->method->save_lmf = 1;
7576 * In AOT mode and embedding scenarios, it is possible that the icall is not
7577 * registered in the runtime doing the AOT compilation.
7579 if (!piinfo->addr && !aot) {
7581 mono_mb_emit_exception (mb, exc_class, exc_arg);
7583 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7584 info->d.managed_to_native.method = method;
7586 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7588 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7589 csig->param_count + 16, info, NULL);
7595 /* internal calls: we simply push all arguments and call the method (no conversions) */
7596 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7598 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7600 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7602 /* hack - string constructors returns a value */
7603 if (method->string_ctor)
7604 csig->ret = &mono_defaults.string_class->byval_arg;
7611 * Add a null check since public icalls can be called with 'call' which
7612 * does no such check.
7614 mono_mb_emit_byte (mb, CEE_LDARG_0);
7615 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7616 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7617 mono_mb_patch_branch (mb, pos);
7619 mono_mb_emit_byte (mb, CEE_LDARG_0);
7622 for (i = 0; i < sig->param_count; i++)
7623 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7626 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7627 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7628 mono_mb_emit_calli (mb, csig);
7630 g_assert (piinfo->addr);
7631 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7633 if (check_exceptions)
7634 emit_thread_interrupt_checkpoint (mb);
7635 mono_mb_emit_byte (mb, CEE_RET);
7637 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7638 info->d.managed_to_native.method = method;
7640 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7642 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7651 g_assert (piinfo->addr);
7654 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7655 mono_method_get_marshal_info (method, mspecs);
7657 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7659 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7660 info->d.managed_to_native.method = method;
7662 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7664 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7669 for (i = sig->param_count; i >= 0; i--)
7671 mono_metadata_free_marshal_spec (mspecs [i]);
7675 /* mono_method_print_code (res); */
7681 * mono_marshal_get_native_func_wrapper:
7682 * @image: The image to use for memory allocation and for looking up custom marshallers.
7683 * @sig: The signature of the function
7684 * @func: The native function to wrap
7686 * Returns a wrapper method around native functions, similar to the pinvoke
7690 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7691 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7693 MonoMethodSignature *csig;
7695 SignaturePointerPair key, *new_key;
7696 MonoMethodBuilder *mb;
7705 // Generic types are not safe to place in MonoImage caches.
7706 g_assert (!sig->is_inflated);
7708 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7709 if ((res = mono_marshal_find_in_cache (cache, &key)))
7712 name = g_strdup_printf ("wrapper_native_%p", func);
7713 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7714 mb->method->save_lmf = 1;
7717 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7720 csig = mono_metadata_signature_dup_full (image, sig);
7723 new_key = g_new (SignaturePointerPair,1);
7724 new_key->sig = csig;
7725 new_key->pointer = func;
7727 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7733 mono_marshal_set_wrapper_info (res, NULL);
7739 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7743 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7745 MonoMethodSignature *sig, *csig;
7746 MonoMethodBuilder *mb;
7751 MonoMethodPInvoke mpiinfo;
7752 MonoMethodPInvoke *piinfo = &mpiinfo;
7753 MonoMarshalSpec **mspecs;
7754 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7755 MonoImage *image = invoke->klass->image;
7758 // FIXME: include UnmanagedFunctionPointerAttribute info
7761 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7763 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7765 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7768 memset (&mpiinfo, 0, sizeof (mpiinfo));
7769 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7771 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7772 mono_method_get_marshal_info (invoke, mspecs);
7773 /* Freed below so don't alloc from mempool */
7774 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7777 name = g_strdup_printf ("wrapper_aot_native");
7778 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7779 mb->method->save_lmf = 1;
7782 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7785 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7786 info->d.managed_to_native.method = invoke;
7788 g_assert (!sig->hasthis);
7789 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7791 res = mono_mb_create_and_cache_full (cache, invoke,
7792 mb, csig, csig->param_count + 16,
7796 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7798 mono_metadata_free_marshal_spec (mspecs [i]);
7806 * mono_marshal_emit_managed_wrapper:
7808 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7809 * the delegate which wraps the managed method to be called. For closed delegates,
7810 * it could have fewer parameters than the method it wraps.
7811 * THIS_LOC is the memory location where the target of the delegate is stored.
7814 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7817 MonoMethodSignature *sig, *csig;
7823 /* we first do all conversions */
7824 for (i = 0; i < sig->param_count; i ++) {
7825 MonoType *t = sig->params [i];
7828 case MONO_TYPE_OBJECT:
7829 case MONO_TYPE_CLASS:
7830 case MONO_TYPE_VALUETYPE:
7831 case MONO_TYPE_ARRAY:
7832 case MONO_TYPE_SZARRAY:
7833 case MONO_TYPE_STRING:
7834 case MONO_TYPE_BOOLEAN:
7835 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7839 if (!sig->ret->byref) {
7840 switch (sig->ret->type) {
7841 case MONO_TYPE_STRING:
7842 csig->ret = &mono_defaults.int_class->byval_arg;
7849 MonoMethodSignature *sig, *csig;
7850 MonoExceptionClause *clause;
7853 gboolean closed = FALSE;
7858 /* allocate local 0 (pointer) src_ptr */
7859 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7860 /* allocate local 1 (pointer) dst_ptr */
7861 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7862 /* allocate local 2 (boolean) delete_old */
7863 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7865 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7866 /* Closed delegate */
7867 g_assert (sig->param_count == invoke_sig->param_count + 1);
7869 /* Use a new signature without the first argument */
7870 sig = mono_metadata_signature_dup (sig);
7871 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7872 sig->param_count --;
7875 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7876 /* allocate local 3 to store the return value */
7877 mono_mb_add_local (mb, sig->ret);
7882 * mono_jit_attach ();
7886 * ret = method (...);
7888 * mono_jit_detach ();
7894 if (mono_threads_is_coop_enabled ()) {
7895 clause = g_new0 (MonoExceptionClause, 1);
7896 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7899 mono_mb_emit_icon (mb, 0);
7900 mono_mb_emit_stloc (mb, 2);
7902 if (mono_threads_is_coop_enabled ()) {
7904 clause->try_offset = mono_mb_get_label (mb);
7908 * Might need to attach the thread to the JIT or change the
7909 * domain for the callback.
7911 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7913 * mono_jit_attach ();
7915 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7916 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7918 /* <interrupt check> */
7919 emit_thread_interrupt_checkpoint (mb);
7921 /* we first do all conversions */
7922 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7923 for (i = 0; i < sig->param_count; i ++) {
7924 MonoType *t = sig->params [i];
7927 case MONO_TYPE_OBJECT:
7928 case MONO_TYPE_CLASS:
7929 case MONO_TYPE_VALUETYPE:
7930 case MONO_TYPE_ARRAY:
7931 case MONO_TYPE_SZARRAY:
7932 case MONO_TYPE_STRING:
7933 case MONO_TYPE_BOOLEAN:
7934 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7944 if (target_handle) {
7945 mono_mb_emit_icon (mb, (gint32)target_handle);
7946 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7949 g_assert_not_reached ();
7951 } else if (closed) {
7952 mono_mb_emit_icon (mb, (gint32)target_handle);
7953 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7956 for (i = 0; i < sig->param_count; i++) {
7957 MonoType *t = sig->params [i];
7959 if (tmp_locals [i]) {
7961 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7963 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7966 mono_mb_emit_ldarg (mb, i);
7969 /* ret = method (...) */
7970 mono_mb_emit_managed_call (mb, method, NULL);
7972 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7973 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7974 } else if (!sig->ret->byref) {
7975 switch (sig->ret->type) {
7976 case MONO_TYPE_VOID:
7978 case MONO_TYPE_BOOLEAN:
7981 case MONO_TYPE_CHAR:
7993 case MONO_TYPE_OBJECT:
7994 mono_mb_emit_stloc (mb, 3);
7996 case MONO_TYPE_STRING:
7997 csig->ret = &mono_defaults.int_class->byval_arg;
7998 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8000 case MONO_TYPE_VALUETYPE:
8001 case MONO_TYPE_CLASS:
8002 case MONO_TYPE_SZARRAY:
8003 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8006 g_warning ("return type 0x%02x unknown", sig->ret->type);
8007 g_assert_not_reached ();
8010 mono_mb_emit_stloc (mb, 3);
8013 /* Convert byref arguments back */
8014 for (i = 0; i < sig->param_count; i ++) {
8015 MonoType *t = sig->params [i];
8016 MonoMarshalSpec *spec = mspecs [i + 1];
8018 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8019 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8021 else if (t->byref) {
8023 case MONO_TYPE_CLASS:
8024 case MONO_TYPE_VALUETYPE:
8025 case MONO_TYPE_OBJECT:
8026 case MONO_TYPE_STRING:
8027 case MONO_TYPE_BOOLEAN:
8028 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8034 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8035 /* The [Out] information is encoded in the delegate signature */
8037 case MONO_TYPE_SZARRAY:
8038 case MONO_TYPE_CLASS:
8039 case MONO_TYPE_VALUETYPE:
8040 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8043 g_assert_not_reached ();
8048 if (mono_threads_is_coop_enabled ()) {
8049 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8052 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8053 clause->handler_offset = mono_mb_get_label (mb);
8057 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8059 * mono_jit_detach ();
8061 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8062 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8064 if (mono_threads_is_coop_enabled ()) {
8065 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8067 /* } [endfinally] */
8068 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8070 mono_mb_patch_branch (mb, leave_pos);
8074 if (m->retobj_var) {
8075 mono_mb_emit_ldloc (mb, m->retobj_var);
8076 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8077 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8080 if (!MONO_TYPE_IS_VOID(sig->ret))
8081 mono_mb_emit_ldloc (mb, 3);
8082 mono_mb_emit_byte (mb, CEE_RET);
8085 if (mono_threads_is_coop_enabled ()) {
8086 mono_mb_set_clauses (mb, 1, clause);
8095 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8097 MonoMethodSignature *sig;
8102 * Under windows, delegates passed to native code must use the STDCALL
8103 * calling convention.
8105 csig->call_convention = MONO_CALL_STDCALL;
8108 sig = mono_method_signature (method);
8110 /* Change default calling convention if needed */
8111 /* Why is this a modopt ? */
8112 if (sig->ret && sig->ret->num_mods) {
8113 for (i = 0; i < sig->ret->num_mods; ++i) {
8115 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8116 g_assert (mono_error_ok (&error));
8117 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8118 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8119 csig->call_convention = MONO_CALL_C;
8120 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8121 csig->call_convention = MONO_CALL_STDCALL;
8122 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8123 csig->call_convention = MONO_CALL_FASTCALL;
8124 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8125 csig->call_convention = MONO_CALL_THISCALL;
8132 * generates IL code to call managed methods from unmanaged code
8133 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8136 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8139 MonoMethodSignature *sig, *csig, *invoke_sig;
8140 MonoMethodBuilder *mb;
8141 MonoMethod *res, *invoke;
8142 MonoMarshalSpec **mspecs;
8143 MonoMethodPInvoke piinfo;
8146 EmitMarshalContext m;
8148 g_assert (method != NULL);
8149 g_assert (!mono_method_signature (method)->pinvoke);
8152 * FIXME: Should cache the method+delegate type pair, since the same method
8153 * could be called with different delegates, thus different marshalling
8156 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8158 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8161 invoke = mono_get_delegate_invoke (delegate_klass);
8162 invoke_sig = mono_method_signature (invoke);
8164 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8165 mono_method_get_marshal_info (invoke, mspecs);
8167 sig = mono_method_signature (method);
8169 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8171 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8172 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8174 /* we copy the signature, so that we can modify it */
8176 /* Need to free this later */
8177 csig = mono_metadata_signature_dup (invoke_sig);
8179 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8183 memset (&m, 0, sizeof (m));
8189 m.image = method->klass->image;
8191 mono_marshal_set_callconv_from_modopt (invoke, csig);
8193 /* The attribute is only available in Net 2.0 */
8194 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8195 MonoCustomAttrInfo *cinfo;
8196 MonoCustomAttrEntry *attr;
8199 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8200 * contents of the attribute without constructing it, as that might not be
8201 * possible when running in cross-compiling mode.
8203 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8204 mono_error_assert_ok (&error);
8207 for (i = 0; i < cinfo->num_attrs; ++i) {
8208 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8209 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8210 attr = &cinfo->attrs [i];
8216 MonoArray *typed_args, *named_args;
8217 CattrNamedArg *arginfo;
8221 MonoBoolean set_last_error = 0;
8224 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8225 g_assert (mono_error_ok (&error));
8226 g_assert (mono_array_length (typed_args) == 1);
8229 o = mono_array_get (typed_args, MonoObject*, 0);
8230 call_conv = *(gint32*)mono_object_unbox (o);
8233 for (i = 0; i < mono_array_length (named_args); ++i) {
8234 CattrNamedArg *narg = &arginfo [i];
8236 o = mono_array_get (named_args, MonoObject*, i);
8238 g_assert (narg->field);
8239 if (!strcmp (narg->field->name, "CharSet")) {
8240 charset = *(gint32*)mono_object_unbox (o);
8241 } else if (!strcmp (narg->field->name, "SetLastError")) {
8242 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8243 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8244 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8245 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8246 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8248 g_assert_not_reached ();
8254 memset (&piinfo, 0, sizeof (piinfo));
8256 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8258 csig->call_convention = call_conv - 1;
8261 if (cinfo && !cinfo->cached)
8262 mono_custom_attrs_free (cinfo);
8265 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8267 if (!target_handle) {
8270 // FIXME: Associate it with the method+delegate_klass pair
8271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8272 info->d.native_to_managed.method = method;
8273 info->d.native_to_managed.klass = delegate_klass;
8275 res = mono_mb_create_and_cache_full (cache, method,
8276 mb, csig, sig->param_count + 16,
8282 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8286 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8288 mono_metadata_free_marshal_spec (mspecs [i]);
8291 /* mono_method_print_code (res); */
8297 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8301 MonoMethodSignature *sig;
8302 MonoMethodBuilder *mb;
8307 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8309 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8312 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8313 MonoMethodSignature *csig;
8314 MonoMarshalSpec **mspecs;
8315 EmitMarshalContext m;
8317 sig = mono_method_signature (method);
8318 g_assert (!sig->hasthis);
8320 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8321 mono_method_get_marshal_info (method, mspecs);
8323 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8324 csig = mono_metadata_signature_dup_full (image, sig);
8328 memset (&m, 0, sizeof (m));
8336 mono_marshal_set_callconv_from_modopt (method, csig);
8338 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8340 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8345 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8348 for (i = sig->param_count; i >= 0; i--)
8350 mono_metadata_free_marshal_spec (mspecs [i]);
8353 return mono_compile_method (method);
8356 sig = mono_method_signature (method);
8357 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8359 param_count = sig->param_count + sig->hasthis;
8361 for (i = 0; i < param_count; i++)
8362 mono_mb_emit_ldarg (mb, i);
8364 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8365 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8367 mono_mb_emit_op (mb, CEE_CALL, method);
8368 mono_mb_emit_byte (mb, CEE_RET);
8373 method = mono_mb_create (mb, sig, param_count, NULL);
8376 return mono_compile_method (method);
8382 * The code directly following this is the cache hit, value positive branch
8384 * This function takes a new method builder with 0 locals and adds two locals
8385 * to create multiple out-branches and the fall through state of having the object
8386 * on the stack after a cache miss
8389 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8390 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8391 MonoMethodBuilder *mb)
8395 /* allocate local 0 (pointer) obj_vtable */
8396 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8397 /* allocate local 1 (pointer) cached_vtable */
8398 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8401 mono_mb_emit_ldarg (mb, obj_arg_position);
8402 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8404 /*obj_vtable = obj->vtable;*/
8405 mono_mb_emit_ldarg (mb, obj_arg_position);
8406 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8407 mono_mb_emit_byte (mb, CEE_LDIND_I);
8408 mono_mb_emit_stloc (mb, 0);
8410 /* cached_vtable = *cache*/
8411 mono_mb_emit_ldarg (mb, cache_arg_position);
8412 mono_mb_emit_byte (mb, CEE_LDIND_I);
8413 mono_mb_emit_stloc (mb, 1);
8415 mono_mb_emit_ldloc (mb, 1);
8416 mono_mb_emit_byte (mb, CEE_LDC_I4);
8417 mono_mb_emit_i4 (mb, ~0x1);
8418 mono_mb_emit_byte (mb, CEE_CONV_I);
8419 mono_mb_emit_byte (mb, CEE_AND);
8420 mono_mb_emit_ldloc (mb, 0);
8421 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8422 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8424 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8425 mono_mb_emit_ldloc (mb, 1);
8426 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8427 mono_mb_emit_byte (mb, CEE_CONV_U);
8428 mono_mb_emit_byte (mb, CEE_AND);
8429 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8430 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8433 mono_mb_patch_branch (mb, cache_miss_pos);
8436 mono_mb_emit_ldarg (mb, obj_arg_position);
8437 mono_mb_emit_ldarg (mb, class_arg_position);
8438 mono_mb_emit_ldarg (mb, cache_arg_position);
8439 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8442 #endif /* DISABLE_JIT */
8445 * This does the equivalent of mono_object_castclass_with_cache.
8446 * The wrapper info for the wrapper is a WrapperInfo structure.
8449 mono_marshal_get_castclass_with_cache (void)
8451 static MonoMethod *cached;
8453 MonoMethodBuilder *mb;
8454 MonoMethodSignature *sig;
8455 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8458 const int obj_arg_position = 0;
8459 const int class_arg_position = 1;
8460 const int cache_arg_position = 2;
8465 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8466 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8467 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8468 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8469 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8470 sig->ret = &mono_defaults.object_class->byval_arg;
8474 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8475 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8476 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8479 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8480 mono_mb_emit_ldarg (mb, obj_arg_position);
8481 mono_mb_emit_byte (mb, CEE_RET);
8484 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8485 mono_mb_patch_branch (mb, invalid_cast_pos);
8486 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8489 mono_mb_patch_branch (mb, return_null_pos);
8490 mono_mb_emit_byte (mb, CEE_LDNULL);
8491 mono_mb_emit_byte (mb, CEE_RET);
8492 #endif /* DISABLE_JIT */
8494 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8495 res = mono_mb_create (mb, sig, 8, info);
8498 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8499 mono_free_method (res);
8500 mono_metadata_free_method_signature (sig);
8508 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8510 MonoObject *isinst = mono_object_isinst (obj, klass);
8512 #ifndef DISABLE_REMOTING
8513 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8517 uintptr_t cache_update = (uintptr_t)obj->vtable;
8519 cache_update = cache_update | 0x1;
8521 *cache = cache_update;
8527 * This does the equivalent of mono_object_isinst_with_cache.
8528 * The wrapper info for the wrapper is a WrapperInfo structure.
8531 mono_marshal_get_isinst_with_cache (void)
8533 static MonoMethod *cached;
8535 MonoMethodBuilder *mb;
8536 MonoMethodSignature *sig;
8537 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8540 const int obj_arg_position = 0;
8541 const int class_arg_position = 1;
8542 const int cache_arg_position = 2;
8547 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8548 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8550 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8552 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8554 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8555 sig->ret = &mono_defaults.object_class->byval_arg;
8559 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8560 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8561 // Return the object gotten via the slow path.
8562 mono_mb_emit_byte (mb, CEE_RET);
8565 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8566 mono_mb_patch_branch (mb, return_null_pos);
8567 mono_mb_emit_byte (mb, CEE_LDNULL);
8568 mono_mb_emit_byte (mb, CEE_RET);
8571 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8572 mono_mb_emit_ldarg (mb, 0);
8573 mono_mb_emit_byte (mb, CEE_RET);
8576 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8577 res = mono_mb_create (mb, sig, 8, info);
8580 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8581 mono_free_method (res);
8582 mono_metadata_free_method_signature (sig);
8590 * mono_marshal_get_isinst:
8591 * @klass: the type of the field
8593 * This method generates a function which can be used to check if an object is
8594 * an instance of the given type, icluding the case where the object is a proxy.
8595 * The generated function has the following signature:
8596 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8599 mono_marshal_get_isinst (MonoClass *klass)
8601 static MonoMethodSignature *isint_sig = NULL;
8605 int pos_was_ok, pos_end;
8606 #ifndef DISABLE_REMOTING
8607 int pos_end2, pos_failed;
8610 MonoMethodBuilder *mb;
8612 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8613 if ((res = mono_marshal_find_in_cache (cache, klass)))
8617 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8618 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8619 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8620 isint_sig->pinvoke = 0;
8623 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8624 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8627 mb->method->save_lmf = 1;
8630 /* check if the object is a proxy that needs special cast */
8631 mono_mb_emit_ldarg (mb, 0);
8632 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8633 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8635 /* The result of MONO_CISINST can be:
8636 0) the type check succeeded
8637 1) the type check did not succeed
8638 2) a CanCastTo call is needed */
8639 #ifndef DISABLE_REMOTING
8640 mono_mb_emit_byte (mb, CEE_DUP);
8641 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8643 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8644 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8646 /* get the real proxy from the transparent proxy*/
8648 mono_mb_emit_ldarg (mb, 0);
8649 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8650 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8654 mono_mb_patch_branch (mb, pos_failed);
8655 mono_mb_emit_byte (mb, CEE_LDNULL);
8656 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8660 mono_mb_patch_branch (mb, pos_was_ok);
8661 mono_mb_emit_byte (mb, CEE_POP);
8662 mono_mb_emit_ldarg (mb, 0);
8666 mono_mb_patch_branch (mb, pos_end);
8667 mono_mb_patch_branch (mb, pos_end2);
8668 mono_mb_emit_byte (mb, CEE_RET);
8670 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8674 mono_mb_emit_byte (mb, CEE_LDNULL);
8675 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8679 mono_mb_patch_branch (mb, pos_was_ok);
8680 mono_mb_emit_ldarg (mb, 0);
8684 mono_mb_patch_branch (mb, pos_end);
8685 mono_mb_emit_byte (mb, CEE_RET);
8686 #endif /* DISABLE_REMOTING */
8687 #endif /* DISABLE_JIT */
8689 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8690 info->d.proxy.klass = klass;
8691 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8698 * mono_marshal_get_castclass:
8699 * @klass: the type of the field
8701 * This method generates a function which can be used to cast an object to
8702 * an instance of the given type, icluding the case where the object is a proxy.
8703 * The generated function has the following signature:
8704 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8705 * The wrapper info for the wrapper is a WrapperInfo structure.
8708 mono_marshal_get_castclass (MonoClass *klass)
8710 static MonoMethodSignature *castclass_sig = NULL;
8713 #ifndef DISABLE_REMOTING
8714 int pos_was_ok, pos_was_ok2;
8717 MonoMethodBuilder *mb;
8720 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8721 if ((res = mono_marshal_find_in_cache (cache, klass)))
8724 if (!castclass_sig) {
8725 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8726 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8727 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8728 castclass_sig->pinvoke = 0;
8731 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8732 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8735 mb->method->save_lmf = 1;
8738 /* check if the object is a proxy that needs special cast */
8739 mono_mb_emit_ldarg (mb, 0);
8740 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8741 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8743 /* The result of MONO_CCASTCLASS can be:
8744 0) the cast is valid
8745 1) cast of unknown proxy type
8746 or an exception if the cast is is invalid
8748 #ifndef DISABLE_REMOTING
8749 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8751 /* get the real proxy from the transparent proxy*/
8753 mono_mb_emit_ldarg (mb, 0);
8754 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8755 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8758 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8761 mono_mb_patch_branch (mb, pos_was_ok);
8762 mono_mb_patch_branch (mb, pos_was_ok2);
8764 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8765 mono_mb_emit_byte (mb, CEE_POP);
8766 #endif /* DISABLE_REMOTING */
8768 mono_mb_emit_ldarg (mb, 0);
8771 mono_mb_emit_byte (mb, CEE_RET);
8772 #endif /* DISABLE_JIT */
8774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8776 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8784 * mono_marshal_get_struct_to_ptr:
8787 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8788 * The wrapper info for the wrapper is a WrapperInfo structure.
8791 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8793 MonoMethodBuilder *mb;
8794 static MonoMethod *stoptr = NULL;
8798 g_assert (klass != NULL);
8800 mono_marshal_load_type_info (klass);
8802 if (klass->marshal_info->str_to_ptr)
8803 return klass->marshal_info->str_to_ptr;
8806 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8809 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8812 if (klass->blittable) {
8813 mono_mb_emit_byte (mb, CEE_LDARG_1);
8814 mono_mb_emit_byte (mb, CEE_LDARG_0);
8815 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8816 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8817 mono_mb_emit_byte (mb, CEE_PREFIX1);
8818 mono_mb_emit_byte (mb, CEE_CPBLK);
8821 /* allocate local 0 (pointer) src_ptr */
8822 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8823 /* allocate local 1 (pointer) dst_ptr */
8824 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8825 /* allocate local 2 (boolean) delete_old */
8826 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8827 mono_mb_emit_byte (mb, CEE_LDARG_2);
8828 mono_mb_emit_stloc (mb, 2);
8830 /* initialize src_ptr to point to the start of object data */
8831 mono_mb_emit_byte (mb, CEE_LDARG_0);
8832 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8833 mono_mb_emit_stloc (mb, 0);
8835 /* initialize dst_ptr */
8836 mono_mb_emit_byte (mb, CEE_LDARG_1);
8837 mono_mb_emit_stloc (mb, 1);
8839 emit_struct_conv (mb, klass, FALSE);
8842 mono_mb_emit_byte (mb, CEE_RET);
8844 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8845 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8848 mono_marshal_lock ();
8849 if (!klass->marshal_info->str_to_ptr)
8850 klass->marshal_info->str_to_ptr = res;
8852 res = klass->marshal_info->str_to_ptr;
8853 mono_marshal_unlock ();
8858 * mono_marshal_get_ptr_to_struct:
8861 * generates IL code for PtrToStructure (IntPtr src, object structure)
8862 * The wrapper info for the wrapper is a WrapperInfo structure.
8865 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8867 MonoMethodBuilder *mb;
8868 static MonoMethodSignature *ptostr = NULL;
8872 g_assert (klass != NULL);
8874 mono_marshal_load_type_info (klass);
8876 if (klass->marshal_info->ptr_to_str)
8877 return klass->marshal_info->ptr_to_str;
8880 MonoMethodSignature *sig;
8882 /* Create the signature corresponding to
8883 static void PtrToStructure (IntPtr ptr, object structure);
8884 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8885 sig = mono_create_icall_signature ("void ptr object");
8886 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8888 mono_memory_barrier ();
8892 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8895 if (klass->blittable) {
8896 mono_mb_emit_byte (mb, CEE_LDARG_1);
8897 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8898 mono_mb_emit_byte (mb, CEE_LDARG_0);
8899 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8900 mono_mb_emit_byte (mb, CEE_PREFIX1);
8901 mono_mb_emit_byte (mb, CEE_CPBLK);
8904 /* allocate local 0 (pointer) src_ptr */
8905 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8906 /* allocate local 1 (pointer) dst_ptr */
8907 mono_mb_add_local (mb, &klass->this_arg);
8909 /* initialize src_ptr to point to the start of object data */
8910 mono_mb_emit_byte (mb, CEE_LDARG_0);
8911 mono_mb_emit_stloc (mb, 0);
8913 /* initialize dst_ptr */
8914 mono_mb_emit_byte (mb, CEE_LDARG_1);
8915 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8916 mono_mb_emit_stloc (mb, 1);
8918 emit_struct_conv (mb, klass, TRUE);
8921 mono_mb_emit_byte (mb, CEE_RET);
8923 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8924 res = mono_mb_create (mb, ptostr, 0, info);
8927 mono_marshal_lock ();
8928 if (!klass->marshal_info->ptr_to_str)
8929 klass->marshal_info->ptr_to_str = res;
8931 res = klass->marshal_info->ptr_to_str;
8932 mono_marshal_unlock ();
8937 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8938 * This is used to avoid infinite recursion since it is hard to determine where to
8939 * replace a method with its synchronized wrapper, and where not.
8940 * The runtime should execute METHOD instead of the wrapper.
8941 * The wrapper info for the wrapper is a WrapperInfo structure.
8944 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8946 MonoMethodBuilder *mb;
8948 MonoMethodSignature *sig;
8950 MonoGenericContext *ctx = NULL;
8951 MonoGenericContainer *container = NULL;
8953 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8954 ctx = &((MonoMethodInflated*)method)->context;
8955 method = ((MonoMethodInflated*)method)->declaring;
8956 container = mono_method_get_generic_container (method);
8958 container = method->klass->generic_container;
8959 g_assert (container);
8962 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8964 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8965 mono_mb_emit_byte (mb, CEE_RET);
8967 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8969 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8970 info->d.synchronized_inner.method = method;
8971 res = mono_mb_create (mb, sig, 0, info);
8975 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8976 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8982 * generates IL code for the synchronized wrapper: the generated method
8983 * calls METHOD while locking 'this' or the parent type.
8986 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8988 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8989 MonoMethodSignature *sig;
8990 MonoExceptionClause *clause;
8991 MonoMethodBuilder *mb;
8995 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8996 MonoGenericContext *ctx = NULL;
8997 MonoMethod *orig_method = NULL;
8998 MonoGenericContainer *container = NULL;
9002 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9005 /* FIXME: Support generic methods too */
9006 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9007 orig_method = method;
9008 ctx = &((MonoMethodInflated*)method)->context;
9009 method = ((MonoMethodInflated*)method)->declaring;
9010 container = mono_method_get_generic_container (method);
9012 container = method->klass->generic_container;
9013 g_assert (container);
9020 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9021 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9025 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9026 if ((res = mono_marshal_find_in_cache (cache, method)))
9030 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9033 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9035 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9036 info->d.synchronized.method = method;
9039 mb->skip_visibility = 1;
9041 if (!MONO_TYPE_IS_VOID (sig->ret))
9042 ret_local = mono_mb_add_local (mb, sig->ret);
9045 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9046 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9048 /* This will throw the type load exception when the wrapper is compiled */
9049 mono_mb_emit_byte (mb, CEE_LDNULL);
9050 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9051 mono_mb_emit_byte (mb, CEE_POP);
9053 if (!MONO_TYPE_IS_VOID (sig->ret))
9054 mono_mb_emit_ldloc (mb, ret_local);
9055 mono_mb_emit_byte (mb, CEE_RET);
9058 res = mono_mb_create_and_cache_full (cache, method,
9059 mb, sig, sig->param_count + 16, info, NULL);
9067 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9068 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9070 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9071 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9074 mono_marshal_lock ();
9076 if (!enter_method) {
9077 MonoMethodDesc *desc;
9079 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9080 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9081 g_assert (enter_method);
9082 mono_method_desc_free (desc);
9084 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9085 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9086 g_assert (exit_method);
9087 mono_method_desc_free (desc);
9089 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9090 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9091 g_assert (gettypefromhandle_method);
9092 mono_method_desc_free (desc);
9095 mono_marshal_unlock ();
9098 /* Push this or the type object */
9099 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9100 /* We have special handling for this in the JIT */
9101 int index = mono_mb_add_data (mb, method->klass);
9102 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9103 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9104 mono_mb_emit_i4 (mb, index);
9106 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9109 mono_mb_emit_ldarg (mb, 0);
9110 mono_mb_emit_stloc (mb, this_local);
9112 /* Call Monitor::Enter() */
9113 mono_mb_emit_ldloc (mb, this_local);
9114 mono_mb_emit_ldloc_addr (mb, taken_local);
9115 mono_mb_emit_managed_call (mb, enter_method, NULL);
9117 clause->try_offset = mono_mb_get_label (mb);
9119 /* Call the method */
9121 mono_mb_emit_ldarg (mb, 0);
9122 for (i = 0; i < sig->param_count; i++)
9123 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9127 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9128 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9130 mono_mb_emit_managed_call (mb, method, NULL);
9133 if (!MONO_TYPE_IS_VOID (sig->ret))
9134 mono_mb_emit_stloc (mb, ret_local);
9136 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9138 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9139 clause->handler_offset = mono_mb_get_label (mb);
9141 /* Call Monitor::Exit() if needed */
9142 mono_mb_emit_ldloc (mb, taken_local);
9143 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9144 mono_mb_emit_ldloc (mb, this_local);
9145 mono_mb_emit_managed_call (mb, exit_method, NULL);
9146 mono_mb_patch_branch (mb, pos2);
9147 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9149 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9151 mono_mb_patch_branch (mb, pos);
9152 if (!MONO_TYPE_IS_VOID (sig->ret))
9153 mono_mb_emit_ldloc (mb, ret_local);
9154 mono_mb_emit_byte (mb, CEE_RET);
9156 mono_mb_set_clauses (mb, 1, clause);
9161 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9162 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9164 res = mono_mb_create_and_cache_full (cache, method,
9165 mb, sig, sig->param_count + 16, info, NULL);
9174 * the returned method calls 'method' unboxing the this argument
9177 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9179 MonoMethodSignature *sig = mono_method_signature (method);
9181 MonoMethodBuilder *mb;
9186 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9188 if ((res = mono_marshal_find_in_cache (cache, method)))
9191 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9193 g_assert (sig->hasthis);
9196 mono_mb_emit_ldarg (mb, 0);
9197 mono_mb_emit_icon (mb, sizeof (MonoObject));
9198 mono_mb_emit_byte (mb, CEE_ADD);
9199 for (i = 0; i < sig->param_count; ++i)
9200 mono_mb_emit_ldarg (mb, i + 1);
9201 mono_mb_emit_managed_call (mb, method, NULL);
9202 mono_mb_emit_byte (mb, CEE_RET);
9205 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9206 info->d.unbox.method = method;
9208 res = mono_mb_create_and_cache_full (cache, method,
9209 mb, sig, sig->param_count + 16, info, NULL);
9212 /* mono_method_print_code (res); */
9218 STELEMREF_OBJECT, /*no check at all*/
9219 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9220 STELEMREF_CLASS, /*only the klass->parents check*/
9221 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9222 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9223 STELEMREF_KIND_COUNT
9226 static const char *strelemref_wrapper_name[] = {
9227 "object", "sealed_class", "class", "interface", "complex"
9231 is_monomorphic_array (MonoClass *klass)
9233 MonoClass *element_class;
9234 if (klass->rank != 1)
9237 element_class = klass->element_class;
9238 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9242 get_virtual_stelemref_kind (MonoClass *element_class)
9244 if (element_class == mono_defaults.object_class)
9245 return STELEMREF_OBJECT;
9246 if (is_monomorphic_array (element_class))
9247 return STELEMREF_SEALED_CLASS;
9248 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9249 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9250 #ifdef COMPRESSED_INTERFACE_BITMAP
9251 return STELEMREF_COMPLEX;
9253 return STELEMREF_INTERFACE;
9255 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9256 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9257 return STELEMREF_COMPLEX;
9258 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9259 return STELEMREF_SEALED_CLASS;
9260 return STELEMREF_CLASS;
9266 load_array_element_address (MonoMethodBuilder *mb)
9268 mono_mb_emit_ldarg (mb, 0);
9269 mono_mb_emit_ldarg (mb, 1);
9270 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9274 load_array_class (MonoMethodBuilder *mb, int aklass)
9276 mono_mb_emit_ldarg (mb, 0);
9277 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9278 mono_mb_emit_byte (mb, CEE_LDIND_I);
9279 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9280 mono_mb_emit_byte (mb, CEE_LDIND_I);
9281 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9282 mono_mb_emit_byte (mb, CEE_LDIND_I);
9283 mono_mb_emit_stloc (mb, aklass);
9287 load_value_class (MonoMethodBuilder *mb, int vklass)
9289 mono_mb_emit_ldarg (mb, 2);
9290 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9291 mono_mb_emit_byte (mb, CEE_LDIND_I);
9292 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9293 mono_mb_emit_byte (mb, CEE_LDIND_I);
9294 mono_mb_emit_stloc (mb, vklass);
9300 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9302 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9303 printf ("slow vstore of %s\n", name);
9309 * The wrapper info for the wrapper is a WrapperInfo structure.
9312 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9313 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9314 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9315 * - Add a case for arrays of arrays.
9318 get_virtual_stelemref_wrapper (int kind)
9320 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9321 static MonoMethodSignature *signature;
9322 MonoMethodBuilder *mb;
9325 const char *param_names [16];
9327 int aklass, vklass, vtable, uiid;
9328 int array_slot_addr;
9331 if (cached_methods [kind])
9332 return cached_methods [kind];
9334 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9335 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9339 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9341 /* void this::stelemref (size_t idx, void* value) */
9342 sig->ret = &mono_defaults.void_class->byval_arg;
9343 sig->hasthis = TRUE;
9344 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9345 sig->params [1] = &mono_defaults.object_class->byval_arg;
9350 param_names [0] = "index";
9351 param_names [1] = "value";
9352 mono_mb_set_param_names (mb, param_names);
9354 /*For now simply call plain old stelemref*/
9356 case STELEMREF_OBJECT:
9357 /* ldelema (implicit bound check) */
9358 load_array_element_address (mb);
9360 mono_mb_emit_ldarg (mb, 2);
9361 mono_mb_emit_byte (mb, CEE_STIND_REF);
9362 mono_mb_emit_byte (mb, CEE_RET);
9365 case STELEMREF_COMPLEX:
9367 <ldelema (bound check)>
9370 if (!mono_object_isinst (value, aklass))
9374 *array_slot_addr = value;
9377 throw new ArrayTypeMismatchException ();
9380 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9381 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9385 /*Use this to debug/record stores that are going thru the slow path*/
9386 MonoMethodSignature *csig;
9387 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9388 csig->ret = &mono_defaults.void_class->byval_arg;
9389 csig->params [0] = &mono_defaults.object_class->byval_arg;
9390 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9391 csig->params [2] = &mono_defaults.object_class->byval_arg;
9392 mono_mb_emit_ldarg (mb, 0);
9393 mono_mb_emit_ldarg (mb, 1);
9394 mono_mb_emit_ldarg (mb, 2);
9395 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9399 /* ldelema (implicit bound check) */
9400 load_array_element_address (mb);
9401 mono_mb_emit_stloc (mb, array_slot_addr);
9403 /* if (!value) goto do_store */
9404 mono_mb_emit_ldarg (mb, 2);
9405 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9407 /* aklass = array->vtable->klass->element_class */
9408 load_array_class (mb, aklass);
9410 /*if (mono_object_isinst (value, aklass)) */
9411 mono_mb_emit_ldarg (mb, 2);
9412 mono_mb_emit_ldloc (mb, aklass);
9413 mono_mb_emit_icall (mb, mono_object_isinst);
9414 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9417 mono_mb_patch_branch (mb, b1);
9418 mono_mb_emit_ldloc (mb, array_slot_addr);
9419 mono_mb_emit_ldarg (mb, 2);
9420 mono_mb_emit_byte (mb, CEE_STIND_REF);
9421 mono_mb_emit_byte (mb, CEE_RET);
9424 mono_mb_patch_branch (mb, b2);
9426 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9429 case STELEMREF_SEALED_CLASS:
9431 <ldelema (bound check)>
9435 aklass = array->vtable->klass->element_class;
9436 vklass = value->vtable->klass;
9438 if (vklass != aklass)
9442 *array_slot_addr = value;
9445 throw new ArrayTypeMismatchException ();
9447 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9448 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9449 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9452 /* ldelema (implicit bound check) */
9453 load_array_element_address (mb);
9454 mono_mb_emit_stloc (mb, array_slot_addr);
9456 /* if (!value) goto do_store */
9457 mono_mb_emit_ldarg (mb, 2);
9458 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9460 /* aklass = array->vtable->klass->element_class */
9461 load_array_class (mb, aklass);
9463 /* vklass = value->vtable->klass */
9464 load_value_class (mb, vklass);
9466 /*if (vklass != aklass) goto do_exception; */
9467 mono_mb_emit_ldloc (mb, aklass);
9468 mono_mb_emit_ldloc (mb, vklass);
9469 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9472 mono_mb_patch_branch (mb, b1);
9473 mono_mb_emit_ldloc (mb, array_slot_addr);
9474 mono_mb_emit_ldarg (mb, 2);
9475 mono_mb_emit_byte (mb, CEE_STIND_REF);
9476 mono_mb_emit_byte (mb, CEE_RET);
9479 mono_mb_patch_branch (mb, b2);
9480 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9483 case STELEMREF_CLASS:
9486 <ldelema (bound check)>
9490 aklass = array->vtable->klass->element_class;
9491 vklass = value->vtable->klass;
9493 if (vklass->idepth < aklass->idepth)
9496 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9500 *array_slot_addr = value;
9504 throw new ArrayTypeMismatchException ();
9506 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9507 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9508 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9510 /* ldelema (implicit bound check) */
9511 load_array_element_address (mb);
9512 mono_mb_emit_stloc (mb, array_slot_addr);
9514 /* if (!value) goto do_store */
9515 mono_mb_emit_ldarg (mb, 2);
9516 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9518 /* aklass = array->vtable->klass->element_class */
9519 load_array_class (mb, aklass);
9521 /* vklass = value->vtable->klass */
9522 load_value_class (mb, vklass);
9524 /*if (mono_object_isinst (value, aklass)) */
9525 mono_mb_emit_ldarg (mb, 2);
9526 mono_mb_emit_ldloc (mb, aklass);
9527 mono_mb_emit_icall (mb, mono_object_isinst);
9528 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9530 /* if (vklass->idepth < aklass->idepth) goto failue */
9531 mono_mb_emit_ldloc (mb, vklass);
9532 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9533 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9535 mono_mb_emit_ldloc (mb, aklass);
9536 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9537 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9539 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9541 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9542 mono_mb_emit_ldloc (mb, vklass);
9543 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9544 mono_mb_emit_byte (mb, CEE_LDIND_I);
9546 mono_mb_emit_ldloc (mb, aklass);
9547 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9548 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9549 mono_mb_emit_icon (mb, 1);
9550 mono_mb_emit_byte (mb, CEE_SUB);
9551 mono_mb_emit_icon (mb, sizeof (void*));
9552 mono_mb_emit_byte (mb, CEE_MUL);
9553 mono_mb_emit_byte (mb, CEE_ADD);
9554 mono_mb_emit_byte (mb, CEE_LDIND_I);
9556 mono_mb_emit_ldloc (mb, aklass);
9557 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9560 mono_mb_patch_branch (mb, b1);
9561 mono_mb_emit_ldloc (mb, array_slot_addr);
9562 mono_mb_emit_ldarg (mb, 2);
9563 mono_mb_emit_byte (mb, CEE_STIND_REF);
9564 mono_mb_emit_byte (mb, CEE_RET);
9567 mono_mb_patch_branch (mb, b2);
9568 mono_mb_patch_branch (mb, b3);
9570 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9573 case STELEMREF_INTERFACE:
9580 klass = array->obj.vtable->klass->element_class;
9582 uiid = klass->interface_id;
9583 if (uiid > vt->max_interface_id)
9585 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9588 mono_array_setref (array, index, value);
9591 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9593 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9594 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9595 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9596 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9598 /* ldelema (implicit bound check) */
9599 load_array_element_address (mb);
9600 mono_mb_emit_stloc (mb, array_slot_addr);
9602 /* if (!value) goto do_store */
9603 mono_mb_emit_ldarg (mb, 2);
9604 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9606 /* klass = array->vtable->klass->element_class */
9607 load_array_class (mb, aklass);
9609 /* vt = value->vtable */
9610 mono_mb_emit_ldarg (mb, 2);
9611 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9612 mono_mb_emit_byte (mb, CEE_LDIND_I);
9613 mono_mb_emit_stloc (mb, vtable);
9615 /* uiid = klass->interface_id; */
9616 mono_mb_emit_ldloc (mb, aklass);
9617 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9618 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9619 mono_mb_emit_stloc (mb, uiid);
9621 /*if (uiid > vt->max_interface_id)*/
9622 mono_mb_emit_ldloc (mb, uiid);
9623 mono_mb_emit_ldloc (mb, vtable);
9624 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9625 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9626 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9628 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9630 /*vt->interface_bitmap*/
9631 mono_mb_emit_ldloc (mb, vtable);
9632 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9633 mono_mb_emit_byte (mb, CEE_LDIND_I);
9636 mono_mb_emit_ldloc (mb, uiid);
9637 mono_mb_emit_icon (mb, 3);
9638 mono_mb_emit_byte (mb, CEE_SHR_UN);
9640 /*vt->interface_bitmap [(uiid) >> 3]*/
9641 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9642 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9644 /*(1 << ((uiid)&7)))*/
9645 mono_mb_emit_icon (mb, 1);
9646 mono_mb_emit_ldloc (mb, uiid);
9647 mono_mb_emit_icon (mb, 7);
9648 mono_mb_emit_byte (mb, CEE_AND);
9649 mono_mb_emit_byte (mb, CEE_SHL);
9651 /*bitwise and the whole thing*/
9652 mono_mb_emit_byte (mb, CEE_AND);
9653 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9656 mono_mb_patch_branch (mb, b1);
9657 mono_mb_emit_ldloc (mb, array_slot_addr);
9658 mono_mb_emit_ldarg (mb, 2);
9659 mono_mb_emit_byte (mb, CEE_STIND_REF);
9660 mono_mb_emit_byte (mb, CEE_RET);
9663 mono_mb_patch_branch (mb, b2);
9664 mono_mb_patch_branch (mb, b3);
9665 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9669 mono_mb_emit_ldarg (mb, 0);
9670 mono_mb_emit_ldarg (mb, 1);
9671 mono_mb_emit_ldarg (mb, 2);
9672 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9673 mono_mb_emit_byte (mb, CEE_RET);
9676 #endif /* DISABLE_JIT */
9677 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9678 info->d.virtual_stelemref.kind = kind;
9679 res = mono_mb_create (mb, signature, 4, info);
9680 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9682 mono_marshal_lock ();
9683 if (!cached_methods [kind]) {
9684 cached_methods [kind] = res;
9685 mono_marshal_unlock ();
9687 mono_marshal_unlock ();
9688 mono_free_method (res);
9692 return cached_methods [kind];
9696 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9700 g_assert (array_class->rank == 1);
9701 kind = get_virtual_stelemref_kind (array_class->element_class);
9703 return get_virtual_stelemref_wrapper (kind);
9707 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9712 *nwrappers = STELEMREF_KIND_COUNT;
9713 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9714 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9715 res [i] = get_virtual_stelemref_wrapper (i);
9720 * The wrapper info for the wrapper is a WrapperInfo structure.
9723 mono_marshal_get_stelemref (void)
9725 static MonoMethod* ret = NULL;
9726 MonoMethodSignature *sig;
9727 MonoMethodBuilder *mb;
9730 guint32 b1, b2, b3, b4;
9733 int array_slot_addr;
9738 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9741 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9743 /* void stelemref (void* array, int idx, void* value) */
9744 sig->ret = &mono_defaults.void_class->byval_arg;
9745 sig->params [0] = &mono_defaults.object_class->byval_arg;
9746 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9747 sig->params [2] = &mono_defaults.object_class->byval_arg;
9750 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9751 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9752 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9756 <ldelema (bound check)>
9760 aklass = array->vtable->klass->element_class;
9761 vklass = value->vtable->klass;
9763 if (vklass->idepth < aklass->idepth)
9766 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9770 *array_slot_addr = value;
9774 if (mono_object_isinst (value, aklass))
9777 throw new ArrayTypeMismatchException ();
9780 /* ldelema (implicit bound check) */
9781 mono_mb_emit_ldarg (mb, 0);
9782 mono_mb_emit_ldarg (mb, 1);
9783 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9784 mono_mb_emit_stloc (mb, array_slot_addr);
9786 /* if (!value) goto do_store */
9787 mono_mb_emit_ldarg (mb, 2);
9788 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9790 /* aklass = array->vtable->klass->element_class */
9791 mono_mb_emit_ldarg (mb, 0);
9792 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9793 mono_mb_emit_byte (mb, CEE_LDIND_I);
9794 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9795 mono_mb_emit_byte (mb, CEE_LDIND_I);
9796 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9797 mono_mb_emit_byte (mb, CEE_LDIND_I);
9798 mono_mb_emit_stloc (mb, aklass);
9800 /* vklass = value->vtable->klass */
9801 mono_mb_emit_ldarg (mb, 2);
9802 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9803 mono_mb_emit_byte (mb, CEE_LDIND_I);
9804 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9805 mono_mb_emit_byte (mb, CEE_LDIND_I);
9806 mono_mb_emit_stloc (mb, vklass);
9808 /* if (vklass->idepth < aklass->idepth) goto failue */
9809 mono_mb_emit_ldloc (mb, vklass);
9810 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9811 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9813 mono_mb_emit_ldloc (mb, aklass);
9814 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9815 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9817 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9819 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9820 mono_mb_emit_ldloc (mb, vklass);
9821 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9822 mono_mb_emit_byte (mb, CEE_LDIND_I);
9824 mono_mb_emit_ldloc (mb, aklass);
9825 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9826 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9827 mono_mb_emit_icon (mb, 1);
9828 mono_mb_emit_byte (mb, CEE_SUB);
9829 mono_mb_emit_icon (mb, sizeof (void*));
9830 mono_mb_emit_byte (mb, CEE_MUL);
9831 mono_mb_emit_byte (mb, CEE_ADD);
9832 mono_mb_emit_byte (mb, CEE_LDIND_I);
9834 mono_mb_emit_ldloc (mb, aklass);
9836 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9838 copy_pos = mono_mb_get_label (mb);
9840 mono_mb_patch_branch (mb, b1);
9841 mono_mb_emit_ldloc (mb, array_slot_addr);
9842 mono_mb_emit_ldarg (mb, 2);
9843 mono_mb_emit_byte (mb, CEE_STIND_REF);
9845 mono_mb_emit_byte (mb, CEE_RET);
9848 mono_mb_patch_branch (mb, b2);
9849 mono_mb_patch_branch (mb, b3);
9851 mono_mb_emit_ldarg (mb, 2);
9852 mono_mb_emit_ldloc (mb, aklass);
9853 mono_mb_emit_icall (mb, mono_object_isinst);
9855 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9856 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9857 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9859 mono_mb_emit_byte (mb, CEE_RET);
9861 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9862 ret = mono_mb_create (mb, sig, 4, info);
9869 * mono_marshal_get_gsharedvt_in_wrapper:
9871 * This wrapper handles calls from normal code to gsharedvt code.
9873 * The wrapper info for the wrapper is a WrapperInfo structure.
9876 mono_marshal_get_gsharedvt_in_wrapper (void)
9878 static MonoMethod* ret = NULL;
9879 MonoMethodSignature *sig;
9880 MonoMethodBuilder *mb;
9886 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9888 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9889 sig->ret = &mono_defaults.void_class->byval_arg;
9893 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9895 mono_mb_emit_byte (mb, CEE_RET);
9897 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9898 ret = mono_mb_create (mb, sig, 4, info);
9905 * mono_marshal_get_gsharedvt_out_wrapper:
9907 * This wrapper handles calls from gsharedvt code to normal code.
9909 * The wrapper info for the wrapper is a WrapperInfo structure.
9912 mono_marshal_get_gsharedvt_out_wrapper (void)
9914 static MonoMethod* ret = NULL;
9915 MonoMethodSignature *sig;
9916 MonoMethodBuilder *mb;
9922 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9924 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9925 sig->ret = &mono_defaults.void_class->byval_arg;
9929 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9931 mono_mb_emit_byte (mb, CEE_RET);
9933 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9934 ret = mono_mb_create (mb, sig, 4, info);
9946 /* LOCKING: vars accessed under the marshal lock */
9947 static ArrayElemAddr *elem_addr_cache = NULL;
9948 static int elem_addr_cache_size = 0;
9949 static int elem_addr_cache_next = 0;
9952 * mono_marshal_get_array_address:
9953 * @rank: rank of the array type
9954 * @elem_size: size in bytes of an element of an array.
9956 * Returns a MonoMethod that implements the code to get the address
9957 * of an element in a multi-dimenasional array of @rank dimensions.
9958 * The returned method takes an array as the first argument and then
9959 * @rank indexes for the @rank dimensions.
9960 * If ELEM_SIZE is 0, read the array size from the array object.
9963 mono_marshal_get_array_address (int rank, int elem_size)
9966 MonoMethodBuilder *mb;
9967 MonoMethodSignature *sig;
9970 int i, bounds, ind, realidx;
9971 int branch_pos, *branch_positions;
9975 mono_marshal_lock ();
9976 for (i = 0; i < elem_addr_cache_next; ++i) {
9977 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9978 ret = elem_addr_cache [i].method;
9982 mono_marshal_unlock ();
9986 branch_positions = g_new0 (int, rank);
9988 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9990 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9991 sig->ret = &mono_defaults.int_class->byval_arg;
9992 sig->params [0] = &mono_defaults.object_class->byval_arg;
9993 for (i = 0; i < rank; ++i) {
9994 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9997 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9998 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10001 #ifndef DISABLE_JIT
10002 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10003 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10004 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10006 /* bounds = array->bounds; */
10007 mono_mb_emit_ldarg (mb, 0);
10008 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10009 mono_mb_emit_byte (mb, CEE_LDIND_I);
10010 mono_mb_emit_stloc (mb, bounds);
10012 /* ind is the overall element index, realidx is the partial index in a single dimension */
10013 /* ind = idx0 - bounds [0].lower_bound */
10014 mono_mb_emit_ldarg (mb, 1);
10015 mono_mb_emit_ldloc (mb, bounds);
10016 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10017 mono_mb_emit_byte (mb, CEE_ADD);
10018 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10019 mono_mb_emit_byte (mb, CEE_SUB);
10020 mono_mb_emit_stloc (mb, ind);
10021 /* if (ind >= bounds [0].length) goto exeception; */
10022 mono_mb_emit_ldloc (mb, ind);
10023 mono_mb_emit_ldloc (mb, bounds);
10024 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10025 mono_mb_emit_byte (mb, CEE_ADD);
10026 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10027 /* note that we use unsigned comparison */
10028 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10030 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10031 * We could also decide to ignore the passed elem_size and get it
10032 * from the array object, to reduce the number of methods we generate:
10033 * the additional cost is 3 memory loads and a non-immediate mul.
10035 for (i = 1; i < rank; ++i) {
10036 /* realidx = idxi - bounds [i].lower_bound */
10037 mono_mb_emit_ldarg (mb, 1 + i);
10038 mono_mb_emit_ldloc (mb, bounds);
10039 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10040 mono_mb_emit_byte (mb, CEE_ADD);
10041 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10042 mono_mb_emit_byte (mb, CEE_SUB);
10043 mono_mb_emit_stloc (mb, realidx);
10044 /* if (realidx >= bounds [i].length) goto exeception; */
10045 mono_mb_emit_ldloc (mb, realidx);
10046 mono_mb_emit_ldloc (mb, bounds);
10047 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10048 mono_mb_emit_byte (mb, CEE_ADD);
10049 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10050 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10051 /* ind = ind * bounds [i].length + realidx */
10052 mono_mb_emit_ldloc (mb, ind);
10053 mono_mb_emit_ldloc (mb, bounds);
10054 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10055 mono_mb_emit_byte (mb, CEE_ADD);
10056 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10057 mono_mb_emit_byte (mb, CEE_MUL);
10058 mono_mb_emit_ldloc (mb, realidx);
10059 mono_mb_emit_byte (mb, CEE_ADD);
10060 mono_mb_emit_stloc (mb, ind);
10063 /* return array->vector + ind * element_size */
10064 mono_mb_emit_ldarg (mb, 0);
10065 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10066 mono_mb_emit_ldloc (mb, ind);
10068 mono_mb_emit_icon (mb, elem_size);
10070 /* Load arr->vtable->klass->sizes.element_class */
10071 mono_mb_emit_ldarg (mb, 0);
10072 mono_mb_emit_byte (mb, CEE_CONV_I);
10073 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10074 mono_mb_emit_byte (mb, CEE_ADD);
10075 mono_mb_emit_byte (mb, CEE_LDIND_I);
10076 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10077 mono_mb_emit_byte (mb, CEE_ADD);
10078 mono_mb_emit_byte (mb, CEE_LDIND_I);
10079 /* sizes is an union, so this reads sizes.element_size */
10080 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10081 mono_mb_emit_byte (mb, CEE_ADD);
10082 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10084 mono_mb_emit_byte (mb, CEE_MUL);
10085 mono_mb_emit_byte (mb, CEE_ADD);
10086 mono_mb_emit_byte (mb, CEE_RET);
10088 /* patch the branches to get here and throw */
10089 for (i = 1; i < rank; ++i) {
10090 mono_mb_patch_branch (mb, branch_positions [i]);
10092 mono_mb_patch_branch (mb, branch_pos);
10093 /* throw exception */
10094 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10096 g_free (branch_positions);
10097 #endif /* DISABLE_JIT */
10099 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10100 info->d.element_addr.rank = rank;
10101 info->d.element_addr.elem_size = elem_size;
10102 ret = mono_mb_create (mb, sig, 4, info);
10105 /* cache the result */
10107 mono_marshal_lock ();
10108 for (i = 0; i < elem_addr_cache_next; ++i) {
10109 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10110 /* FIXME: free ret */
10111 ret = elem_addr_cache [i].method;
10117 if (elem_addr_cache_next >= elem_addr_cache_size) {
10118 int new_size = elem_addr_cache_size + 4;
10119 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10120 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10121 g_free (elem_addr_cache);
10122 elem_addr_cache = new_array;
10123 elem_addr_cache_size = new_size;
10125 elem_addr_cache [elem_addr_cache_next].rank = rank;
10126 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10127 elem_addr_cache [elem_addr_cache_next].method = ret;
10128 elem_addr_cache_next ++;
10130 mono_marshal_unlock ();
10135 * mono_marshal_get_array_accessor_wrapper:
10137 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10140 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10142 MonoMethodSignature *sig;
10143 MonoMethodBuilder *mb;
10147 MonoGenericContext *ctx = NULL;
10148 MonoMethod *orig_method = NULL;
10149 MonoGenericContainer *container = NULL;
10153 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10154 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10155 * FIXME: Use generic methods.
10162 g_assert_not_reached ();
10164 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10165 if ((res = mono_marshal_find_in_cache (cache, method)))
10169 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10172 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10174 #ifndef DISABLE_JIT
10175 /* Call the method */
10177 mono_mb_emit_ldarg (mb, 0);
10178 for (i = 0; i < sig->param_count; i++)
10179 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10183 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10184 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10186 mono_mb_emit_managed_call (mb, method, NULL);
10188 mono_mb_emit_byte (mb, CEE_RET);
10191 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10192 info->d.array_accessor.method = method;
10196 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10197 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10199 res = mono_mb_create_and_cache_full (cache, method,
10200 mb, sig, sig->param_count + 16,
10209 mono_marshal_alloc (gulong size, MonoError *error)
10213 mono_error_init (error);
10216 res = CoTaskMemAlloc (size);
10218 res = g_try_malloc ((gulong)size);
10220 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10225 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10227 ves_icall_marshal_alloc (gulong size)
10230 void *ret = mono_marshal_alloc (size, &error);
10231 if (!mono_error_ok (&error)) {
10232 mono_error_set_pending_exception (&error);
10240 mono_marshal_free (gpointer ptr)
10243 CoTaskMemFree (ptr);
10250 mono_marshal_free_array (gpointer *ptr, int size)
10257 for (i = 0; i < size; i++)
10263 mono_marshal_string_to_utf16 (MonoString *s)
10265 return s ? mono_string_chars (s) : NULL;
10268 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10270 mono_marshal_string_to_utf16_copy (MonoString *s)
10276 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10277 if (!mono_error_ok (&error)) {
10278 mono_error_set_pending_exception (&error);
10281 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10282 res [mono_string_length (s)] = 0;
10288 * mono_marshal_set_last_error:
10290 * This function is invoked to set the last error value from a P/Invoke call
10291 * which has SetLastError set.
10294 mono_marshal_set_last_error (void)
10297 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10299 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10304 mono_marshal_set_last_error_windows (int error)
10307 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10312 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10313 gpointer dest, gint32 length)
10318 MONO_CHECK_ARG_NULL (src,);
10319 MONO_CHECK_ARG_NULL (dest,);
10321 if (src->obj.vtable->klass->rank != 1) {
10322 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10325 if (start_index < 0) {
10326 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10330 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10333 if (start_index + length > mono_array_length (src)) {
10334 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10338 element_size = mono_array_element_size (src->obj.vtable->klass);
10340 /* no references should be involved */
10341 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10343 memcpy (dest, source_addr, length * element_size);
10347 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10348 MonoArray *dest, gint32 length)
10353 MONO_CHECK_ARG_NULL (src,);
10354 MONO_CHECK_ARG_NULL (dest,);
10356 if (dest->obj.vtable->klass->rank != 1) {
10357 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10360 if (start_index < 0) {
10361 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10365 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10368 if (start_index + length > mono_array_length (dest)) {
10369 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10372 element_size = mono_array_element_size (dest->obj.vtable->klass);
10374 /* no references should be involved */
10375 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10377 memcpy (dest_addr, src, length * element_size);
10381 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10386 return mono_string_new (mono_domain_get (), ptr);
10390 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10393 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10396 return mono_string_new_len (mono_domain_get (), ptr, len);
10401 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10404 MonoString *res = NULL;
10405 MonoDomain *domain = mono_domain_get ();
10415 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10416 if (!mono_error_ok (&error)) {
10417 mono_error_set_pending_exception (&error);
10424 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10427 MonoString *res = NULL;
10428 MonoDomain *domain = mono_domain_get ();
10430 mono_error_init (&error);
10434 mono_error_set_argument_null (&error, "ptr", "");
10436 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10439 if (!mono_error_ok (&error))
10440 mono_error_set_pending_exception (&error);
10445 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10447 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10451 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10457 MONO_CHECK_ARG_NULL (rtype, 0);
10459 type = rtype->type;
10460 klass = mono_class_from_mono_type (type);
10461 if (!mono_class_init (klass)) {
10462 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10466 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10468 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10469 return sizeof (gpointer);
10470 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10472 MonoException *exc;
10474 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10475 exc = mono_get_exception_argument ("t", msg);
10477 mono_set_pending_exception (exc);
10481 return mono_class_native_size (klass, NULL);
10485 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10488 MonoMethod *method;
10491 MONO_CHECK_ARG_NULL (obj,);
10492 MONO_CHECK_ARG_NULL (dst,);
10494 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10498 pa [2] = &delete_old;
10500 mono_runtime_invoke_checked (method, NULL, pa, &error);
10501 if (!mono_error_ok (&error))
10502 mono_error_set_pending_exception (&error);
10506 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10508 MonoMethod *method;
10511 mono_error_init (error);
10513 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10518 mono_runtime_invoke_checked (method, NULL, pa, error);
10522 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10527 MONO_CHECK_ARG_NULL (src,);
10528 MONO_CHECK_ARG_NULL (dst,);
10530 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10532 if (t->type == MONO_TYPE_VALUETYPE) {
10533 MonoException *exc;
10536 tmp = g_strdup_printf ("Destination is a boxed value type.");
10537 exc = mono_get_exception_argument ("dst", tmp);
10540 mono_set_pending_exception (exc);
10544 ptr_to_structure (src, dst, &error);
10545 if (!mono_error_ok (&error))
10546 mono_error_set_pending_exception (&error);
10550 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10554 MonoDomain *domain = mono_domain_get ();
10559 MONO_CHECK_ARG_NULL (type, NULL);
10561 klass = mono_class_from_mono_type (type->type);
10562 if (!mono_class_init (klass)) {
10563 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10567 res = mono_object_new_checked (domain, klass, &error);
10568 if (!mono_error_ok (&error)) {
10569 mono_error_set_pending_exception (&error);
10573 ptr_to_structure (src, res, &error);
10574 if (!mono_error_ok (&error)) {
10575 mono_error_set_pending_exception (&error);
10583 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10585 MonoMarshalType *info;
10588 int match_index = -1;
10590 MONO_CHECK_ARG_NULL (type, 0);
10591 MONO_CHECK_ARG_NULL (field_name, 0);
10593 fname = mono_string_to_utf8 (field_name);
10594 klass = mono_class_from_mono_type (type->type);
10595 if (!mono_class_init (klass)) {
10596 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10600 while (klass && match_index == -1) {
10601 MonoClassField* field;
10603 gpointer iter = NULL;
10604 while ((field = mono_class_get_fields (klass, &iter))) {
10605 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10607 if (!strcmp (fname, mono_field_get_name (field))) {
10614 if (match_index == -1)
10615 klass = klass->parent;
10620 if(match_index == -1) {
10621 MonoException* exc;
10624 /* Get back original class instance */
10625 klass = mono_class_from_mono_type (type->type);
10627 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10628 exc = mono_get_exception_argument ("fieldName", tmp);
10631 mono_set_pending_exception ((MonoException*)exc);
10635 info = mono_marshal_load_type_info (klass);
10636 return info->fields [match_index].offset;
10640 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10645 tres = mono_string_to_utf8 (string);
10649 len = strlen (tres) + 1;
10650 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10651 memcpy (ret, tres, len);
10656 return mono_string_to_utf8 (string);
10661 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10663 if (string == NULL)
10666 #ifdef TARGET_WIN32
10667 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10668 ((mono_string_length (string) + 1) * 2);
10670 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10672 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10673 res [mono_string_length (string)] = 0;
10679 mono_struct_delete_old (MonoClass *klass, char *ptr)
10681 MonoMarshalType *info;
10684 info = mono_marshal_load_type_info (klass);
10686 for (i = 0; i < info->num_fields; i++) {
10687 MonoMarshalConv conv;
10688 MonoType *ftype = info->fields [i].field->type;
10691 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10694 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10695 klass->unicode, &conv);
10697 cpos = ptr + info->fields [i].offset;
10700 case MONO_MARSHAL_CONV_NONE:
10701 if (MONO_TYPE_ISSTRUCT (ftype)) {
10702 mono_struct_delete_old (ftype->data.klass, cpos);
10706 case MONO_MARSHAL_CONV_STR_LPWSTR:
10707 /* We assume this field points inside a MonoString */
10709 case MONO_MARSHAL_CONV_STR_LPTSTR:
10710 #ifdef TARGET_WIN32
10711 /* We assume this field points inside a MonoString
10715 case MONO_MARSHAL_CONV_STR_LPSTR:
10716 case MONO_MARSHAL_CONV_STR_BSTR:
10717 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10718 case MONO_MARSHAL_CONV_STR_TBSTR:
10719 mono_marshal_free (*(gpointer *)cpos);
10729 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10733 MONO_CHECK_ARG_NULL (src,);
10734 MONO_CHECK_ARG_NULL (type,);
10736 klass = mono_class_from_mono_type (type->type);
10737 if (!mono_class_init (klass)) {
10738 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10742 mono_struct_delete_old (klass, (char *)src);
10746 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10749 size_t s = (size_t)size;
10752 /* This returns a valid pointer for size 0 on MS.NET */
10756 res = GlobalAlloc (GMEM_FIXED, s);
10758 res = g_try_malloc (s);
10761 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10769 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10772 size_t s = (size_t)size;
10775 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10780 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10782 res = g_try_realloc (ptr, s);
10785 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10793 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10803 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10808 res = CoTaskMemAlloc (size);
10810 if ((gulong)size == 0)
10811 /* This returns a valid pointer for size 0 on MS.NET */
10814 res = g_try_malloc ((gulong)size);
10817 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10824 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10827 CoTaskMemFree (ptr);
10834 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10839 res = CoTaskMemRealloc (ptr, size);
10841 res = g_try_realloc (ptr, (gulong)size);
10844 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10851 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10853 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10857 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10859 MonoClass *klass = mono_type_get_class (type->type);
10860 if (!mono_class_init (klass)) {
10861 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10865 return mono_ftnptr_to_delegate (klass, ftn);
10869 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10871 return mono_delegate_to_ftnptr (delegate);
10875 * mono_marshal_is_loading_type_info:
10877 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10881 mono_marshal_is_loading_type_info (MonoClass *klass)
10883 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10885 return g_slist_find (loads_list, klass) != NULL;
10889 * mono_marshal_load_type_info:
10891 * Initialize klass->marshal_info using information from metadata. This function can
10892 * recursively call itself, and the caller is responsible to avoid that by calling
10893 * mono_marshal_is_loading_type_info () beforehand.
10895 * LOCKING: Acquires the loader lock.
10898 mono_marshal_load_type_info (MonoClass* klass)
10901 guint32 native_size = 0, min_align = 1, packing;
10902 MonoMarshalType *info;
10903 MonoClassField* field;
10906 GSList *loads_list;
10908 g_assert (klass != NULL);
10910 if (klass->marshal_info)
10911 return klass->marshal_info;
10913 if (!klass->inited)
10914 mono_class_init (klass);
10916 if (klass->marshal_info)
10917 return klass->marshal_info;
10920 * This function can recursively call itself, so we keep the list of classes which are
10921 * under initialization in a TLS list.
10923 g_assert (!mono_marshal_is_loading_type_info (klass));
10924 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10925 loads_list = g_slist_prepend (loads_list, klass);
10926 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10929 while ((field = mono_class_get_fields (klass, &iter))) {
10930 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10932 if (mono_field_is_deleted (field))
10937 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10939 /* The mempool is protected by the loader lock */
10940 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10941 info->num_fields = count;
10943 /* Try to find a size for this type in metadata */
10944 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10946 if (klass->parent) {
10947 int parent_size = mono_class_native_size (klass->parent, NULL);
10949 /* Add parent size to real size */
10950 native_size += parent_size;
10951 info->native_size = parent_size;
10954 packing = klass->packing_size ? klass->packing_size : 8;
10957 while ((field = mono_class_get_fields (klass, &iter))) {
10961 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10964 if (mono_field_is_deleted (field))
10966 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10967 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10968 NULL, NULL, &info->fields [j].mspec);
10970 info->fields [j].field = field;
10972 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10973 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10974 /* This field is a hack inserted by MCS to empty structures */
10979 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10980 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10981 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10982 &align, TRUE, klass->unicode);
10983 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10984 min_align = MAX (align, min_align);
10985 info->fields [j].offset = info->native_size;
10986 info->fields [j].offset += align - 1;
10987 info->fields [j].offset &= ~(align - 1);
10988 info->native_size = info->fields [j].offset + size;
10990 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10991 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10992 &align, TRUE, klass->unicode);
10993 min_align = MAX (align, min_align);
10994 info->fields [j].offset = field->offset - sizeof (MonoObject);
10995 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11001 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11002 info->native_size = MAX (native_size, info->native_size);
11004 * If the provided Size is equal or larger than the calculated size, and there
11005 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11007 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11008 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11011 min_align = MIN (min_align, packing);
11015 if (info->native_size & (min_align - 1)) {
11016 info->native_size += min_align - 1;
11017 info->native_size &= ~(min_align - 1);
11020 info->min_align = min_align;
11022 /* Update the class's blittable info, if the layouts don't match */
11023 if (info->native_size != mono_class_value_size (klass, NULL))
11024 klass->blittable = FALSE;
11026 /* If this is an array type, ensure that we have element info */
11027 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11028 mono_marshal_load_type_info (klass->element_class);
11031 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11032 loads_list = g_slist_remove (loads_list, klass);
11033 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11035 mono_marshal_lock ();
11036 if (!klass->marshal_info) {
11037 /*We do double-checking locking on marshal_info */
11038 mono_memory_barrier ();
11039 klass->marshal_info = info;
11041 mono_marshal_unlock ();
11043 return klass->marshal_info;
11047 * mono_class_native_size:
11050 * Returns: the native size of an object instance (when marshaled
11051 * to unmanaged code)
11054 mono_class_native_size (MonoClass *klass, guint32 *align)
11056 if (!klass->marshal_info) {
11057 if (mono_marshal_is_loading_type_info (klass)) {
11062 mono_marshal_load_type_info (klass);
11067 *align = klass->marshal_info->min_align;
11069 return klass->marshal_info->native_size;
11073 * mono_type_native_stack_size:
11074 * @t: the type to return the size it uses on the stack
11076 * Returns: the number of bytes required to hold an instance of this
11077 * type on the native stack
11080 mono_type_native_stack_size (MonoType *t, guint32 *align)
11084 g_assert (t != NULL);
11090 *align = sizeof (gpointer);
11091 return sizeof (gpointer);
11095 case MONO_TYPE_BOOLEAN:
11096 case MONO_TYPE_CHAR:
11107 case MONO_TYPE_STRING:
11108 case MONO_TYPE_OBJECT:
11109 case MONO_TYPE_CLASS:
11110 case MONO_TYPE_SZARRAY:
11111 case MONO_TYPE_PTR:
11112 case MONO_TYPE_FNPTR:
11113 case MONO_TYPE_ARRAY:
11114 *align = sizeof (gpointer);
11115 return sizeof (gpointer);
11120 *align = MONO_ABI_ALIGNOF (double);
11124 *align = MONO_ABI_ALIGNOF (gint64);
11126 case MONO_TYPE_GENERICINST:
11127 if (!mono_type_generic_inst_is_valuetype (t)) {
11128 *align = sizeof (gpointer);
11129 return sizeof (gpointer);
11132 case MONO_TYPE_TYPEDBYREF:
11133 case MONO_TYPE_VALUETYPE: {
11135 MonoClass *klass = mono_class_from_mono_type (t);
11137 if (klass->enumtype)
11138 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11140 size = mono_class_native_size (klass, align);
11141 *align = *align + 3;
11151 g_error ("type 0x%02x unknown", t->type);
11157 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11158 gboolean as_field, gboolean unicode)
11160 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11163 switch (native_type) {
11164 case MONO_NATIVE_BOOLEAN:
11167 case MONO_NATIVE_I1:
11168 case MONO_NATIVE_U1:
11171 case MONO_NATIVE_I2:
11172 case MONO_NATIVE_U2:
11173 case MONO_NATIVE_VARIANTBOOL:
11176 case MONO_NATIVE_I4:
11177 case MONO_NATIVE_U4:
11178 case MONO_NATIVE_ERROR:
11181 case MONO_NATIVE_I8:
11182 case MONO_NATIVE_U8:
11183 *align = MONO_ABI_ALIGNOF (gint64);
11185 case MONO_NATIVE_R4:
11188 case MONO_NATIVE_R8:
11189 *align = MONO_ABI_ALIGNOF (double);
11191 case MONO_NATIVE_INT:
11192 case MONO_NATIVE_UINT:
11193 case MONO_NATIVE_LPSTR:
11194 case MONO_NATIVE_LPWSTR:
11195 case MONO_NATIVE_LPTSTR:
11196 case MONO_NATIVE_BSTR:
11197 case MONO_NATIVE_ANSIBSTR:
11198 case MONO_NATIVE_TBSTR:
11199 case MONO_NATIVE_LPARRAY:
11200 case MONO_NATIVE_SAFEARRAY:
11201 case MONO_NATIVE_IUNKNOWN:
11202 case MONO_NATIVE_IDISPATCH:
11203 case MONO_NATIVE_INTERFACE:
11204 case MONO_NATIVE_ASANY:
11205 case MONO_NATIVE_FUNC:
11206 case MONO_NATIVE_LPSTRUCT:
11207 *align = MONO_ABI_ALIGNOF (gpointer);
11208 return sizeof (gpointer);
11209 case MONO_NATIVE_STRUCT:
11210 klass = mono_class_from_mono_type (type);
11211 if (klass == mono_defaults.object_class &&
11212 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11216 return mono_class_native_size (klass, align);
11217 case MONO_NATIVE_BYVALTSTR: {
11218 int esize = unicode ? 2: 1;
11221 return mspec->data.array_data.num_elem * esize;
11223 case MONO_NATIVE_BYVALARRAY: {
11224 // FIXME: Have to consider ArraySubType
11226 klass = mono_class_from_mono_type (type);
11227 if (klass->element_class == mono_defaults.char_class) {
11228 esize = unicode ? 2 : 1;
11231 esize = mono_class_native_size (klass->element_class, align);
11234 return mspec->data.array_data.num_elem * esize;
11236 case MONO_NATIVE_CUSTOM:
11237 *align = sizeof (gpointer);
11238 return sizeof (gpointer);
11240 case MONO_NATIVE_CURRENCY:
11241 case MONO_NATIVE_VBBYREFSTR:
11243 g_error ("native type %02x not implemented", native_type);
11246 g_assert_not_reached ();
11250 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11252 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11261 t = &o->vtable->klass->byval_arg;
11265 case MONO_TYPE_PTR:
11268 case MONO_TYPE_BOOLEAN:
11271 case MONO_TYPE_CHAR:
11276 return mono_object_unbox (o);
11278 case MONO_TYPE_STRING:
11279 switch (string_encoding) {
11280 case MONO_NATIVE_LPWSTR:
11281 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11283 case MONO_NATIVE_LPSTR:
11284 return mono_string_to_lpstr ((MonoString*)o);
11287 g_warning ("marshaling conversion %d not implemented", string_encoding);
11288 g_assert_not_reached ();
11291 case MONO_TYPE_CLASS:
11292 case MONO_TYPE_VALUETYPE: {
11293 MonoMethod *method;
11296 MonoBoolean delete_old = FALSE;
11298 klass = t->data.klass;
11300 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11303 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11304 klass->blittable || klass->enumtype))
11305 return mono_object_unbox (o);
11307 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11308 if (!mono_error_ok (&error)) {
11309 mono_error_set_pending_exception (&error);
11313 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11314 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11318 pa [2] = &delete_old;
11320 mono_runtime_invoke_checked (method, NULL, pa, &error);
11321 if (!mono_error_ok (&error)) {
11322 mono_error_set_pending_exception (&error);
11332 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11336 /* This is a JIT icall, it sets the pending exception */
11338 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11347 t = &o->vtable->klass->byval_arg;
11349 case MONO_TYPE_STRING:
11350 switch (string_encoding) {
11351 case MONO_NATIVE_LPWSTR:
11352 case MONO_NATIVE_LPSTR:
11353 mono_marshal_free (ptr);
11356 g_warning ("marshaling conversion %d not implemented", string_encoding);
11357 g_assert_not_reached ();
11360 case MONO_TYPE_CLASS:
11361 case MONO_TYPE_VALUETYPE: {
11362 klass = t->data.klass;
11364 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11365 klass->blittable || klass->enumtype))
11368 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11369 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11375 mono_runtime_invoke_checked (method, NULL, pa, &error);
11376 if (!mono_error_ok (&error)) {
11377 mono_error_set_pending_exception (&error);
11382 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11383 mono_struct_delete_old (klass, (char *)ptr);
11386 mono_marshal_free (ptr);
11395 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11397 MonoMethodSignature *sig, *csig;
11398 MonoMethodBuilder *mb;
11403 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11404 mb->method->slot = -1;
11406 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11407 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11409 sig = mono_method_signature (method);
11410 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11411 csig->generic_param_count = 0;
11413 #ifndef DISABLE_JIT
11414 mono_mb_emit_ldarg (mb, 0);
11415 for (i = 0; i < csig->param_count; i++)
11416 mono_mb_emit_ldarg (mb, i + 1);
11417 mono_mb_emit_managed_call (mb, method, NULL);
11418 mono_mb_emit_byte (mb, CEE_RET);
11420 /* We can corlib internal methods */
11421 mb->skip_visibility = TRUE;
11423 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11424 info->d.generic_array_helper.method = method;
11425 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11433 * The mono_win32_compat_* functions are implementations of inline
11434 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11435 * although not exported by kernel32.
11437 * We map the appropiate kernel32 entries to these functions using
11438 * dllmaps declared in the global etc/mono/config.
11442 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11444 if (!dest || !source)
11447 memcpy (dest, source, length);
11451 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11453 memset (dest, fill, length);
11457 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11459 if (!dest || !source)
11462 memmove (dest, source, length);
11466 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11468 memset (dest, 0, length);
11472 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11477 for (i = 0; i < len; ++i)
11481 g_assert (i < len);
11484 while (byte && !(byte & 1))
11486 g_assert (byte == 1);
11489 *bitmask = buf [i];
11493 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11495 MonoMethodBuilder *mb;
11496 MonoMethodSignature *sig, *csig;
11497 MonoExceptionClause *clause;
11502 int i, param_count, sig_size, pos_leave;
11503 int coop_gc_var, coop_gc_dummy_local;
11507 klass = method->klass;
11508 image = method->klass->image;
11510 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11512 if ((res = mono_marshal_find_in_cache (cache, method)))
11515 sig = mono_method_signature (method);
11516 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11518 /* add "this" and exception param */
11519 param_count = sig->param_count + sig->hasthis + 1;
11521 /* dup & extend signature */
11522 csig = mono_metadata_signature_alloc (image, param_count);
11523 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11524 memcpy (csig, sig, sig_size);
11525 csig->param_count = param_count;
11528 csig->call_convention = MONO_CALL_DEFAULT;
11530 if (sig->hasthis) {
11532 csig->params [0] = &klass->byval_arg;
11533 /* move params up by one */
11534 for (i = 0; i < sig->param_count; i++)
11535 csig->params [i + 1] = sig->params [i];
11538 /* setup exception param as byref+[out] */
11539 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11540 &mono_defaults.exception_class->byval_arg);
11541 csig->params [param_count - 1]->byref = 1;
11542 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11544 /* convert struct return to object */
11545 if (MONO_TYPE_ISSTRUCT (sig->ret))
11546 csig->ret = &mono_defaults.object_class->byval_arg;
11548 #ifndef DISABLE_JIT
11549 /* local 0 (temp for exception object) */
11550 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11552 /* local 1 (temp for result) */
11553 if (!MONO_TYPE_IS_VOID (sig->ret))
11554 mono_mb_add_local (mb, sig->ret);
11556 if (mono_threads_is_coop_enabled ()) {
11557 /* local 4, the local to be used when calling the reset_blocking funcs */
11558 /* tons of code hardcode 3 to be the return var */
11559 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11560 /* local 5, the local used to get a stack address for suspend funcs */
11561 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11564 /* clear exception arg */
11565 mono_mb_emit_ldarg (mb, param_count - 1);
11566 mono_mb_emit_byte (mb, CEE_LDNULL);
11567 mono_mb_emit_byte (mb, CEE_STIND_REF);
11569 if (mono_threads_is_coop_enabled ()) {
11570 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11571 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11572 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11573 mono_mb_emit_stloc (mb, coop_gc_var);
11577 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11578 clause->try_offset = mono_mb_get_label (mb);
11580 /* push method's args */
11581 for (i = 0; i < param_count - 1; i++) {
11585 mono_mb_emit_ldarg (mb, i);
11587 /* get the byval type of the param */
11588 klass = mono_class_from_mono_type (csig->params [i]);
11589 type = &klass->byval_arg;
11591 /* unbox struct args */
11592 if (MONO_TYPE_ISSTRUCT (type)) {
11593 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11595 /* byref args & and the "this" arg must remain a ptr.
11596 Otherwise make a copy of the value type */
11597 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11598 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11600 csig->params [i] = &mono_defaults.object_class->byval_arg;
11605 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11606 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11608 mono_mb_emit_op (mb, CEE_CALL, method);
11610 /* save result at local 1 */
11611 if (!MONO_TYPE_IS_VOID (sig->ret))
11612 mono_mb_emit_stloc (mb, 1);
11614 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11617 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11618 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11619 clause->data.catch_class = mono_defaults.object_class;
11621 clause->handler_offset = mono_mb_get_label (mb);
11623 /* store exception at local 0 */
11624 mono_mb_emit_stloc (mb, 0);
11625 mono_mb_emit_ldarg (mb, param_count - 1);
11626 mono_mb_emit_ldloc (mb, 0);
11627 mono_mb_emit_byte (mb, CEE_STIND_REF);
11628 mono_mb_emit_branch (mb, CEE_LEAVE);
11630 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11632 mono_mb_set_clauses (mb, 1, clause);
11634 mono_mb_patch_branch (mb, pos_leave);
11637 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11638 mono_mb_emit_ldloc (mb, 1);
11640 /* box the return value */
11641 if (MONO_TYPE_ISSTRUCT (sig->ret))
11642 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11645 if (mono_threads_is_coop_enabled ()) {
11646 /* XXX merge reset_blocking_end with detach */
11647 mono_mb_emit_ldloc (mb, coop_gc_var);
11648 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11649 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11652 mono_mb_emit_byte (mb, CEE_RET);
11655 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11662 * mono_marshal_free_dynamic_wrappers:
11664 * Free wrappers of the dynamic method METHOD.
11667 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11669 MonoImage *image = method->klass->image;
11671 g_assert (method_is_dynamic (method));
11673 /* This could be called during shutdown */
11674 if (marshal_mutex_initialized)
11675 mono_marshal_lock ();
11677 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11678 * they could be shared with other methods ?
11680 if (image->wrapper_caches.runtime_invoke_direct_cache)
11681 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11682 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11683 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11684 // FIXME: Need to clear the caches in other images as well
11685 if (image->delegate_bound_static_invoke_cache)
11686 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11688 if (marshal_mutex_initialized)
11689 mono_marshal_unlock ();