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) {
3175 MonoType *target_type;
3177 g_assert (method->signature->hasthis);
3178 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3179 mono_method_get_context (method), &error);
3180 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3181 target_class = mono_class_from_mono_type (target_type);
3183 target_class = target_method->klass;
3186 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3189 if (static_method_with_first_arg_bound) {
3190 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3191 g_assert (!callvirt);
3192 invoke_sig = mono_method_signature (target_method);
3196 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3198 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3199 orig_method = method;
3200 ctx = &((MonoMethodInflated*)method)->context;
3201 method = ((MonoMethodInflated*)method)->declaring;
3203 container = mono_method_get_generic_container (method);
3205 container = method->klass->generic_container;
3206 g_assert (container);
3208 invoke_sig = sig = mono_signature_no_pinvoke (method);
3215 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3216 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3219 cache_key = method->klass;
3220 } else if (static_method_with_first_arg_bound) {
3221 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3222 (GHashFunc)mono_signature_hash,
3223 (GCompareFunc)mono_metadata_signature_equal);
3225 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3227 res = mono_marshal_find_in_cache (cache, invoke_sig);
3230 cache_key = invoke_sig;
3231 } else if (callvirt) {
3232 GHashTable **cache_ptr;
3234 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3236 /* We need to cache the signature+method pair */
3237 mono_marshal_lock ();
3239 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3241 key.sig = invoke_sig;
3242 key.pointer = target_method;
3243 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3244 mono_marshal_unlock ();
3248 // Inflated methods should not be in this cache because it's not stored on the imageset.
3249 g_assert (!method->is_inflated);
3250 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3251 (GHashFunc)mono_signature_hash,
3252 (GCompareFunc)mono_metadata_signature_equal);
3253 res = mono_marshal_find_in_cache (cache, sig);
3259 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3260 static_sig->hasthis = 0;
3261 if (!static_method_with_first_arg_bound)
3262 invoke_sig = static_sig;
3264 if (static_method_with_first_arg_bound)
3265 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3266 else if (closed_over_null)
3267 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3269 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3271 name = mono_signature_to_name (invoke_sig, "invoke");
3273 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3275 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3279 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3281 /* allocate local 0 (object) */
3282 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3283 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3284 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3285 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3286 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3289 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3291 g_assert (sig->hasthis);
3294 * {type: sig->ret} res;
3295 * if (delegates == null) {
3296 * return this.<target> ( args .. );
3298 * int i = 0, len = this.delegates.Length;
3300 * res = this.delegates [i].Invoke ( args .. );
3301 * } while (++i < len);
3306 /* this wrapper can be used in unmanaged-managed transitions */
3307 emit_thread_interrupt_checkpoint (mb);
3309 /* delegates = this.delegates */
3310 mono_mb_emit_ldarg (mb, 0);
3311 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3313 mono_mb_emit_stloc (mb, local_delegates);
3316 /* if (delegates == null) */
3317 mono_mb_emit_ldloc (mb, local_delegates);
3318 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3320 /* return target.<target_method|method_ptr> ( args .. ); */
3322 /* target = d.target; */
3323 mono_mb_emit_ldarg (mb, 0);
3324 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3325 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3326 mono_mb_emit_stloc (mb, local_target);
3328 /*static methods with bound first arg can have null target and still be bound*/
3329 if (!static_method_with_first_arg_bound) {
3330 /* if target != null */
3331 mono_mb_emit_ldloc (mb, local_target);
3332 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3334 /* then call this->method_ptr nonstatic */
3337 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3339 mono_mb_emit_ldloc (mb, local_target);
3340 for (i = 0; i < sig->param_count; ++i)
3341 mono_mb_emit_ldarg (mb, i + 1);
3342 mono_mb_emit_ldarg (mb, 0);
3343 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3344 mono_mb_emit_byte (mb, CEE_LDIND_I);
3345 mono_mb_emit_ldarg (mb, 0);
3346 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3347 mono_mb_emit_byte (mb, CEE_LDIND_I);
3348 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3349 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3350 mono_mb_emit_byte (mb, CEE_RET);
3353 /* else [target == null] call this->method_ptr static */
3354 mono_mb_patch_branch (mb, pos0);
3358 if (!closed_over_null) {
3359 if (target_class->valuetype) {
3360 mono_mb_emit_ldarg (mb, 1);
3361 for (i = 1; i < sig->param_count; ++i)
3362 mono_mb_emit_ldarg (mb, i + 1);
3363 mono_mb_emit_op (mb, CEE_CALL, target_method);
3365 mono_mb_emit_ldarg (mb, 1);
3366 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3367 for (i = 1; i < sig->param_count; ++i)
3368 mono_mb_emit_ldarg (mb, i + 1);
3369 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3372 mono_mb_emit_byte (mb, CEE_LDNULL);
3373 for (i = 0; i < sig->param_count; ++i)
3374 mono_mb_emit_ldarg (mb, i + 1);
3375 mono_mb_emit_op (mb, CEE_CALL, target_method);
3378 if (static_method_with_first_arg_bound) {
3379 mono_mb_emit_ldloc (mb, local_target);
3380 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3381 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3383 for (i = 0; i < sig->param_count; ++i)
3384 mono_mb_emit_ldarg (mb, i + 1);
3385 mono_mb_emit_ldarg (mb, 0);
3386 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3387 mono_mb_emit_byte (mb, CEE_LDIND_I);
3388 mono_mb_emit_ldarg (mb, 0);
3389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3390 mono_mb_emit_byte (mb, CEE_LDIND_I);
3391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3392 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3395 mono_mb_emit_byte (mb, CEE_RET);
3397 /* else [delegates != null] */
3398 mono_mb_patch_branch (mb, pos2);
3400 /* len = delegates.Length; */
3401 mono_mb_emit_ldloc (mb, local_delegates);
3402 mono_mb_emit_byte (mb, CEE_LDLEN);
3403 mono_mb_emit_byte (mb, CEE_CONV_I4);
3404 mono_mb_emit_stloc (mb, local_len);
3407 mono_mb_emit_icon (mb, 0);
3408 mono_mb_emit_stloc (mb, local_i);
3410 pos1 = mono_mb_get_label (mb);
3412 /* d = delegates [i]; */
3413 mono_mb_emit_ldloc (mb, local_delegates);
3414 mono_mb_emit_ldloc (mb, local_i);
3415 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3416 mono_mb_emit_stloc (mb, local_d);
3418 /* res = d.Invoke ( args .. ); */
3419 mono_mb_emit_ldloc (mb, local_d);
3420 for (i = 0; i < sig->param_count; i++)
3421 mono_mb_emit_ldarg (mb, i + 1);
3423 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3426 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3427 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3430 mono_mb_emit_stloc (mb, local_res);
3433 mono_mb_emit_add_to_local (mb, local_i, 1);
3436 mono_mb_emit_ldloc (mb, local_i);
3437 mono_mb_emit_ldloc (mb, local_len);
3438 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3442 mono_mb_emit_ldloc (mb, local_res);
3443 mono_mb_emit_byte (mb, CEE_RET);
3445 mb->skip_visibility = 1;
3446 #endif /* DISABLE_JIT */
3448 info = mono_wrapper_info_create (mb, subtype);
3453 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3454 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3455 } else if (callvirt) {
3456 new_key = g_new0 (SignaturePointerPair, 1);
3459 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3463 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3467 /* mono_method_print_code (res); */
3473 * the returned method invokes all methods in a multicast delegate.
3476 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3478 gboolean callvirt = FALSE;
3479 gboolean static_method_with_first_arg_bound = FALSE;
3480 MonoMethod *target_method = NULL;
3481 MonoMethodSignature *sig;
3483 sig = mono_signature_no_pinvoke (method);
3485 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3487 target_method = del->method;
3490 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3491 static_method_with_first_arg_bound = TRUE;
3492 target_method = del->method;
3495 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3499 MonoMethodSignature *ctor_sig;
3500 MonoMethodSignature *sig;
3503 /* protected by the marshal lock, contains CtorSigPair pointers */
3504 static GSList *strsig_list = NULL;
3506 static MonoMethodSignature *
3507 lookup_string_ctor_signature (MonoMethodSignature *sig)
3509 MonoMethodSignature *callsig;
3513 mono_marshal_lock ();
3515 for (item = strsig_list; item; item = item->next) {
3516 cs = (CtorSigPair *)item->data;
3517 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3518 * because it is lock-free.
3520 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3525 mono_marshal_unlock ();
3529 static MonoMethodSignature *
3530 add_string_ctor_signature (MonoMethod *method)
3532 MonoMethodSignature *callsig;
3535 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3536 callsig->ret = &mono_defaults.string_class->byval_arg;
3537 cs = g_new (CtorSigPair, 1);
3539 cs->ctor_sig = mono_method_signature (method);
3541 mono_marshal_lock ();
3542 strsig_list = g_slist_prepend (strsig_list, cs);
3543 mono_marshal_unlock ();
3548 * mono_marshal_get_string_ctor_signature:
3550 * Return the modified signature used by string ctors (they return the newly created
3553 MonoMethodSignature*
3554 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3556 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3558 sig = add_string_ctor_signature (method);
3564 get_runtime_invoke_type (MonoType *t, gboolean ret)
3567 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3569 /* Can't share this with 'I' as that needs another indirection */
3570 return &mono_defaults.int_class->this_arg;
3573 if (MONO_TYPE_IS_REFERENCE (t))
3574 return &mono_defaults.object_class->byval_arg;
3577 /* The result needs to be boxed */
3582 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3585 return &mono_defaults.sbyte_class->byval_arg;
3587 return &mono_defaults.int16_class->byval_arg;
3589 return &mono_defaults.int32_class->byval_arg;
3592 return &mono_defaults.int64_class->byval_arg;
3593 case MONO_TYPE_BOOLEAN:
3594 return &mono_defaults.byte_class->byval_arg;
3595 case MONO_TYPE_CHAR:
3596 return &mono_defaults.uint16_class->byval_arg;
3598 return &mono_defaults.int_class->byval_arg;
3599 case MONO_TYPE_VALUETYPE:
3600 if (t->data.klass->enumtype) {
3601 t = mono_class_enum_basetype (t->data.klass);
3611 * mono_marshal_get_runtime_invoke_sig:
3613 * Return a common signature used for sharing runtime invoke wrappers.
3615 static MonoMethodSignature*
3616 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3618 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3621 res->generic_param_count = 0;
3622 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3623 for (i = 0; i < res->param_count; ++i)
3624 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3630 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3632 /* Can't share wrappers which return a vtype since it needs to be boxed */
3633 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))
3636 return mono_metadata_signature_equal (sig1, sig2);
3644 * Emit the call to the wrapper method from a runtime invoke wrapper.
3647 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3648 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3650 gboolean virtual_, gboolean need_direct_wrapper)
3652 static MonoString *string_dummy = NULL;
3654 int *tmp_nullable_locals;
3655 gboolean void_ret = FALSE;
3656 gboolean string_ctor = method && method->string_ctor;
3658 /* to make it work with our special string constructors */
3659 if (!string_dummy) {
3660 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3661 string_dummy = mono_string_new_wrapper ("dummy");
3665 g_assert (sig->hasthis);
3666 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3671 if (mono_gc_is_moving ()) {
3672 mono_mb_emit_ptr (mb, &string_dummy);
3673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3675 mono_mb_emit_ptr (mb, string_dummy);
3678 mono_mb_emit_ldarg (mb, 0);
3682 tmp_nullable_locals = g_new0 (int, sig->param_count);
3684 for (i = 0; i < sig->param_count; i++) {
3685 MonoType *t = sig->params [i];
3688 mono_mb_emit_ldarg (mb, 1);
3690 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3691 mono_mb_emit_byte (mb, CEE_ADD);
3695 mono_mb_emit_byte (mb, CEE_LDIND_I);
3696 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3697 * So to make this work we unbox it to a local variablee and push a reference to that.
3699 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3700 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3702 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3703 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3704 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3709 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3710 type = sig->params [i]->type;
3714 case MONO_TYPE_BOOLEAN:
3718 case MONO_TYPE_CHAR:
3727 mono_mb_emit_byte (mb, CEE_LDIND_I);
3728 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3730 case MONO_TYPE_STRING:
3731 case MONO_TYPE_CLASS:
3732 case MONO_TYPE_ARRAY:
3734 case MONO_TYPE_SZARRAY:
3735 case MONO_TYPE_OBJECT:
3736 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3738 case MONO_TYPE_GENERICINST:
3739 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3740 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3745 case MONO_TYPE_VALUETYPE:
3746 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3747 type = mono_class_enum_basetype (t->data.klass)->type;
3750 mono_mb_emit_byte (mb, CEE_LDIND_I);
3751 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3752 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3753 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3754 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3756 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3760 g_assert_not_reached ();
3765 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3766 } else if (need_direct_wrapper) {
3767 mono_mb_emit_op (mb, CEE_CALL, method);
3769 mono_mb_emit_ldarg (mb, 3);
3770 mono_mb_emit_calli (mb, callsig);
3773 if (sig->ret->byref) {
3775 g_assert_not_reached ();
3778 switch (sig->ret->type) {
3779 case MONO_TYPE_VOID:
3783 case MONO_TYPE_BOOLEAN:
3784 case MONO_TYPE_CHAR:
3797 case MONO_TYPE_VALUETYPE:
3798 case MONO_TYPE_TYPEDBYREF:
3799 case MONO_TYPE_GENERICINST:
3800 /* box value types */
3801 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3803 case MONO_TYPE_STRING:
3804 case MONO_TYPE_CLASS:
3805 case MONO_TYPE_ARRAY:
3806 case MONO_TYPE_SZARRAY:
3807 case MONO_TYPE_OBJECT:
3811 /* The result is an IntPtr */
3812 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3815 g_assert_not_reached ();
3819 mono_mb_emit_stloc (mb, loc_res);
3821 /* Convert back nullable-byref arguments */
3822 for (i = 0; i < sig->param_count; i++) {
3823 MonoType *t = sig->params [i];
3826 * Box the result and put it back into the array, the caller will have
3827 * to obtain it from there.
3829 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3830 mono_mb_emit_ldarg (mb, 1);
3831 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3832 mono_mb_emit_byte (mb, CEE_ADD);
3834 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3835 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3837 mono_mb_emit_byte (mb, CEE_STIND_REF);
3841 g_free (tmp_nullable_locals);
3845 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3846 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3847 gboolean virtual_, gboolean need_direct_wrapper)
3850 MonoExceptionClause *clause;
3851 int loc_res, loc_exc;
3853 /* The wrapper looks like this:
3859 * } catch (Exception e) {
3867 /* allocate local 0 (object) tmp */
3868 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3869 /* allocate local 1 (object) exc */
3870 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3872 /* *exc is assumed to be initialized to NULL by the caller */
3874 mono_mb_emit_byte (mb, CEE_LDARG_2);
3875 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3880 labels [1] = mono_mb_get_label (mb);
3881 emit_thread_force_interrupt_checkpoint (mb);
3882 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3884 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3886 /* Add a try clause around the call */
3887 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3888 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3889 clause->data.catch_class = mono_defaults.exception_class;
3890 clause->try_offset = labels [1];
3891 clause->try_len = mono_mb_get_label (mb) - labels [1];
3893 clause->handler_offset = mono_mb_get_label (mb);
3896 mono_mb_emit_stloc (mb, loc_exc);
3897 mono_mb_emit_byte (mb, CEE_LDARG_2);
3898 mono_mb_emit_ldloc (mb, loc_exc);
3899 mono_mb_emit_byte (mb, CEE_STIND_REF);
3901 mono_mb_emit_branch (mb, CEE_LEAVE);
3903 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3905 mono_mb_set_clauses (mb, 1, clause);
3907 mono_mb_patch_branch (mb, labels [2]);
3908 mono_mb_emit_ldloc (mb, loc_res);
3909 mono_mb_emit_byte (mb, CEE_RET);
3914 mono_mb_patch_branch (mb, labels [0]);
3915 emit_thread_force_interrupt_checkpoint (mb);
3916 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3918 mono_mb_emit_ldloc (mb, 0);
3919 mono_mb_emit_byte (mb, CEE_RET);
3924 * generates IL code for the runtime invoke function
3925 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3927 * we also catch exceptions if exc != null
3928 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3929 * it means that the compiled code for METHOD does not have to be looked up
3930 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3931 * its METHOD argument.
3934 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3936 MonoMethodSignature *sig, *csig, *callsig;
3937 MonoMethodBuilder *mb;
3938 GHashTable *cache = NULL;
3939 MonoClass *target_klass;
3940 MonoMethod *res = NULL;
3941 static MonoMethodSignature *cctor_signature = NULL;
3942 static MonoMethodSignature *finalize_signature = NULL;
3944 const char *param_names [16];
3945 gboolean need_direct_wrapper = FALSE;
3950 if (!cctor_signature) {
3951 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3952 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3954 if (!finalize_signature) {
3955 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3956 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3957 finalize_signature->hasthis = 1;
3961 need_direct_wrapper = TRUE;
3964 * Use a separate cache indexed by methods to speed things up and to avoid the
3965 * boundless mempool growth caused by the signature_dup stuff below.
3968 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3970 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3972 res = mono_marshal_find_in_cache (cache, method);
3976 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3977 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3979 * Array Get/Set/Address methods. The JIT implements them using inline code
3980 * so we need to create an invoke wrapper which calls the method directly.
3982 need_direct_wrapper = TRUE;
3985 if (method->string_ctor) {
3986 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3988 callsig = add_string_ctor_signature (method);
3989 /* Can't share this as we push a string as this */
3990 need_direct_wrapper = TRUE;
3992 if (method_is_dynamic (method))
3993 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3995 callsig = mono_method_signature (method);
3998 sig = mono_method_signature (method);
4000 target_klass = get_wrapper_target_class (method->klass->image);
4002 /* Try to share wrappers for non-corlib methods with simple signatures */
4003 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4004 callsig = cctor_signature;
4005 target_klass = mono_defaults.object_class;
4006 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4007 callsig = finalize_signature;
4008 target_klass = mono_defaults.object_class;
4011 if (need_direct_wrapper) {
4012 /* Already searched at the start */
4014 MonoMethodSignature *tmp_sig;
4016 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4017 GHashTable **cache_table = NULL;
4019 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4020 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4022 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4024 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4025 (GCompareFunc)runtime_invoke_signature_equal);
4027 /* from mono_marshal_find_in_cache */
4028 mono_marshal_lock ();
4029 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4030 mono_marshal_unlock ();
4037 /* Make a copy of the signature from the image mempool */
4039 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4043 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4045 csig->ret = &mono_defaults.object_class->byval_arg;
4046 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4047 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4049 csig->params [0] = &mono_defaults.object_class->byval_arg;
4050 csig->params [1] = &mono_defaults.int_class->byval_arg;
4051 csig->params [2] = &mono_defaults.int_class->byval_arg;
4052 csig->params [3] = &mono_defaults.int_class->byval_arg;
4055 /* This is called from runtime code so it has to be cdecl */
4056 csig->call_convention = MONO_CALL_C;
4059 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4060 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4064 param_names [0] = "this";
4065 param_names [1] = "params";
4066 param_names [2] = "exc";
4067 param_names [3] = "method";
4068 mono_mb_set_param_names (mb, param_names);
4070 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4073 if (need_direct_wrapper) {
4075 mb->skip_visibility = 1;
4077 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4078 info->d.runtime_invoke.method = method;
4079 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4081 /* taken from mono_mb_create_and_cache */
4082 mono_marshal_lock ();
4083 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4084 mono_marshal_unlock ();
4086 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4087 info->d.runtime_invoke.sig = callsig;
4089 /* Somebody may have created it before us */
4092 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4094 mono_marshal_lock ();
4095 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4097 GHashTable *direct_cache;
4099 g_hash_table_insert (cache, callsig, res);
4100 /* Can't insert it into wrapper_hash since the key is a signature */
4101 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4103 g_hash_table_insert (direct_cache, method, res);
4105 mono_free_method (newm);
4107 mono_marshal_unlock ();
4110 /* end mono_mb_create_and_cache */
4119 * mono_marshal_get_runtime_invoke_dynamic:
4121 * Return a method which can be used to invoke managed methods from native code
4123 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4124 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4125 * ARGS should point to an architecture specific structure containing
4126 * the arguments and space for the return value.
4127 * The other arguments are the same as for runtime_invoke (), except that
4128 * ARGS should contain the this argument too.
4129 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4130 * is only one copy of it, which is useful in full-aot.
4131 * The wrapper info for the wrapper is a WrapperInfo structure.
4134 mono_marshal_get_runtime_invoke_dynamic (void)
4136 static MonoMethod *method;
4137 MonoMethodSignature *csig;
4138 MonoExceptionClause *clause;
4139 MonoMethodBuilder *mb;
4147 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4149 csig->ret = &mono_defaults.void_class->byval_arg;
4150 csig->params [0] = &mono_defaults.int_class->byval_arg;
4151 csig->params [1] = &mono_defaults.int_class->byval_arg;
4152 csig->params [2] = &mono_defaults.int_class->byval_arg;
4153 csig->params [3] = &mono_defaults.int_class->byval_arg;
4155 name = g_strdup ("runtime_invoke_dynamic");
4156 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4160 /* allocate local 0 (object) tmp */
4161 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4162 /* allocate local 1 (object) exc */
4163 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4165 /* cond set *exc to null */
4166 mono_mb_emit_byte (mb, CEE_LDARG_1);
4167 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4168 mono_mb_emit_byte (mb, 3);
4169 mono_mb_emit_byte (mb, CEE_LDARG_1);
4170 mono_mb_emit_byte (mb, CEE_LDNULL);
4171 mono_mb_emit_byte (mb, CEE_STIND_REF);
4173 emit_thread_force_interrupt_checkpoint (mb);
4175 mono_mb_emit_byte (mb, CEE_LDARG_0);
4176 mono_mb_emit_byte (mb, CEE_LDARG_2);
4177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4178 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4180 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4182 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4183 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4184 clause->try_len = mono_mb_get_label (mb);
4187 clause->data.filter_offset = mono_mb_get_label (mb);
4189 mono_mb_emit_byte (mb, CEE_POP);
4190 mono_mb_emit_byte (mb, CEE_LDARG_1);
4191 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4192 mono_mb_emit_byte (mb, CEE_PREFIX1);
4193 mono_mb_emit_byte (mb, CEE_CGT_UN);
4194 mono_mb_emit_byte (mb, CEE_PREFIX1);
4195 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4197 clause->handler_offset = mono_mb_get_label (mb);
4200 /* store exception */
4201 mono_mb_emit_stloc (mb, 1);
4203 mono_mb_emit_byte (mb, CEE_LDARG_1);
4204 mono_mb_emit_ldloc (mb, 1);
4205 mono_mb_emit_byte (mb, CEE_STIND_REF);
4207 mono_mb_emit_byte (mb, CEE_LDNULL);
4208 mono_mb_emit_stloc (mb, 0);
4210 /* Check for the abort exception */
4211 mono_mb_emit_ldloc (mb, 1);
4212 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4213 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4215 /* Delay the abort exception */
4216 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4218 mono_mb_patch_short_branch (mb, posna);
4219 mono_mb_emit_branch (mb, CEE_LEAVE);
4221 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4223 mono_mb_set_clauses (mb, 1, clause);
4226 mono_mb_patch_branch (mb, pos);
4227 //mono_mb_emit_ldloc (mb, 0);
4228 mono_mb_emit_byte (mb, CEE_RET);
4229 #endif /* DISABLE_JIT */
4231 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4233 mono_marshal_lock ();
4234 /* double-checked locking */
4236 method = mono_mb_create (mb, csig, 16, info);
4238 mono_marshal_unlock ();
4246 * mono_marshal_get_runtime_invoke_for_sig:
4248 * Return a runtime invoke wrapper for a given signature.
4251 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4253 MonoMethodSignature *csig, *callsig;
4254 MonoMethodBuilder *mb;
4256 GHashTable *cache = NULL;
4257 GHashTable **cache_table = NULL;
4258 MonoMethod *res = NULL;
4260 const char *param_names [16];
4263 /* A simplified version of mono_marshal_get_runtime_invoke */
4265 image = mono_defaults.corlib;
4267 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4269 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4271 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4272 (GCompareFunc)runtime_invoke_signature_equal);
4274 /* from mono_marshal_find_in_cache */
4275 mono_marshal_lock ();
4276 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4277 mono_marshal_unlock ();
4284 /* Make a copy of the signature from the image mempool */
4285 callsig = mono_metadata_signature_dup_full (image, callsig);
4287 csig = mono_metadata_signature_alloc (image, 4);
4288 csig->ret = &mono_defaults.object_class->byval_arg;
4289 csig->params [0] = &mono_defaults.object_class->byval_arg;
4290 csig->params [1] = &mono_defaults.int_class->byval_arg;
4291 csig->params [2] = &mono_defaults.int_class->byval_arg;
4292 csig->params [3] = &mono_defaults.int_class->byval_arg;
4295 /* This is called from runtime code so it has to be cdecl */
4296 csig->call_convention = MONO_CALL_C;
4299 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4300 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4304 param_names [0] = "this";
4305 param_names [1] = "params";
4306 param_names [2] = "exc";
4307 param_names [3] = "method";
4308 mono_mb_set_param_names (mb, param_names);
4310 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4313 /* taken from mono_mb_create_and_cache */
4314 mono_marshal_lock ();
4315 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4316 mono_marshal_unlock ();
4318 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4319 info->d.runtime_invoke.sig = callsig;
4321 /* Somebody may have created it before us */
4324 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4326 mono_marshal_lock ();
4327 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4330 g_hash_table_insert (cache, callsig, res);
4332 mono_free_method (newm);
4334 mono_marshal_unlock ();
4337 /* end mono_mb_create_and_cache */
4346 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4348 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4349 klass->name_space, klass->name);
4351 mono_mb_emit_exception_marshal_directive (mb, msg);
4356 * generates IL code for the icall wrapper (the generated method
4357 * calls the unmanaged code in func)
4358 * The wrapper info for the wrapper is a WrapperInfo structure.
4361 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4363 MonoMethodSignature *csig, *csig2;
4364 MonoMethodBuilder *mb;
4369 g_assert (sig->pinvoke);
4371 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4373 mb->method->save_lmf = 1;
4375 /* Add an explicit this argument */
4377 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4379 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4383 mono_mb_emit_byte (mb, CEE_LDARG_0);
4385 for (i = 0; i < sig->param_count; i++)
4386 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4388 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4389 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4390 mono_mb_emit_calli (mb, csig2);
4391 if (check_exceptions)
4392 emit_thread_interrupt_checkpoint (mb);
4393 mono_mb_emit_byte (mb, CEE_RET);
4396 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4398 if (csig->call_convention == MONO_CALL_VARARG)
4399 csig->call_convention = 0;
4401 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4402 info->d.icall.func = (gpointer)func;
4403 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4410 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4411 MonoMarshalSpec *spec,
4412 int conv_arg, MonoType **conv_arg_type,
4413 MarshalAction action)
4416 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4417 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4422 static MonoClass *ICustomMarshaler = NULL;
4423 static MonoMethod *cleanup_native, *cleanup_managed;
4424 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4425 MonoMethod *get_instance = NULL;
4426 MonoMethodBuilder *mb = m->mb;
4427 char *exception_msg = NULL;
4431 if (!ICustomMarshaler) {
4432 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4434 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4435 goto handle_exception;
4438 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4439 g_assert (cleanup_native);
4440 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4441 g_assert (cleanup_managed);
4442 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4443 g_assert (marshal_managed_to_native);
4444 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4445 g_assert (marshal_native_to_managed);
4447 mono_memory_barrier ();
4448 ICustomMarshaler = klass;
4451 if (spec->data.custom_data.image)
4452 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4454 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4455 g_assert (mtype != NULL);
4456 mklass = mono_class_from_mono_type (mtype);
4457 g_assert (mklass != NULL);
4459 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4460 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4462 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4464 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4465 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4466 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4467 (get_sig->params [0]->type != MONO_TYPE_STRING))
4468 get_instance = NULL;
4472 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);
4475 /* Throw exception and emit compensation code if neccesary */
4476 if (exception_msg) {
4478 case MARSHAL_ACTION_CONV_IN:
4479 case MARSHAL_ACTION_CONV_RESULT:
4480 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4481 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4482 mono_mb_emit_byte (mb, CEE_POP);
4484 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4485 g_free (exception_msg);
4488 case MARSHAL_ACTION_PUSH:
4489 mono_mb_emit_byte (mb, CEE_LDNULL);
4497 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4498 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4501 case MARSHAL_ACTION_CONV_IN:
4503 case MONO_TYPE_CLASS:
4504 case MONO_TYPE_OBJECT:
4505 case MONO_TYPE_STRING:
4506 case MONO_TYPE_ARRAY:
4507 case MONO_TYPE_SZARRAY:
4508 case MONO_TYPE_VALUETYPE:
4512 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4513 g_assert_not_reached ();
4517 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4519 mono_mb_emit_byte (mb, CEE_LDNULL);
4520 mono_mb_emit_stloc (mb, conv_arg);
4522 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4525 /* Minic MS.NET behavior */
4526 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4529 /* Check for null */
4530 mono_mb_emit_ldarg (mb, argnum);
4532 mono_mb_emit_byte (mb, CEE_LDIND_I);
4533 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4535 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4537 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4539 mono_mb_emit_ldarg (mb, argnum);
4541 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4543 if (t->type == MONO_TYPE_VALUETYPE) {
4545 * Since we can't determine the type of the argument, we
4546 * will assume the unmanaged function takes a pointer.
4548 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4550 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4553 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4554 mono_mb_emit_stloc (mb, conv_arg);
4556 mono_mb_patch_branch (mb, pos2);
4559 case MARSHAL_ACTION_CONV_OUT:
4560 /* Check for null */
4561 mono_mb_emit_ldloc (mb, conv_arg);
4562 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4565 mono_mb_emit_ldarg (mb, argnum);
4567 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4569 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4571 mono_mb_emit_ldloc (mb, conv_arg);
4572 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4573 mono_mb_emit_byte (mb, CEE_STIND_REF);
4574 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4575 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4577 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4579 mono_mb_emit_ldloc (mb, conv_arg);
4580 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4582 /* We have nowhere to store the result */
4583 mono_mb_emit_byte (mb, CEE_POP);
4586 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4588 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4590 mono_mb_emit_ldloc (mb, conv_arg);
4592 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4594 mono_mb_patch_branch (mb, pos2);
4597 case MARSHAL_ACTION_PUSH:
4599 mono_mb_emit_ldloc_addr (mb, conv_arg);
4601 mono_mb_emit_ldloc (mb, conv_arg);
4604 case MARSHAL_ACTION_CONV_RESULT:
4605 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4607 mono_mb_emit_stloc (mb, 3);
4609 mono_mb_emit_ldloc (mb, 3);
4610 mono_mb_emit_stloc (mb, loc1);
4612 /* Check for null */
4613 mono_mb_emit_ldloc (mb, 3);
4614 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4616 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4618 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4619 mono_mb_emit_byte (mb, CEE_DUP);
4621 mono_mb_emit_ldloc (mb, 3);
4622 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4623 mono_mb_emit_stloc (mb, 3);
4625 mono_mb_emit_ldloc (mb, loc1);
4626 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4628 mono_mb_patch_branch (mb, pos2);
4631 case MARSHAL_ACTION_MANAGED_CONV_IN:
4632 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4634 mono_mb_emit_byte (mb, CEE_LDNULL);
4635 mono_mb_emit_stloc (mb, conv_arg);
4637 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4640 /* Check for null */
4641 mono_mb_emit_ldarg (mb, argnum);
4643 mono_mb_emit_byte (mb, CEE_LDIND_I);
4644 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4646 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4647 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4649 mono_mb_emit_ldarg (mb, argnum);
4651 mono_mb_emit_byte (mb, CEE_LDIND_I);
4653 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4654 mono_mb_emit_stloc (mb, conv_arg);
4656 mono_mb_patch_branch (mb, pos2);
4659 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4660 g_assert (!t->byref);
4662 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4664 mono_mb_emit_stloc (mb, 3);
4666 mono_mb_emit_ldloc (mb, 3);
4667 mono_mb_emit_stloc (mb, loc1);
4669 /* Check for null */
4670 mono_mb_emit_ldloc (mb, 3);
4671 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4673 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4674 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4675 mono_mb_emit_byte (mb, CEE_DUP);
4677 mono_mb_emit_ldloc (mb, 3);
4678 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4679 mono_mb_emit_stloc (mb, 3);
4681 mono_mb_emit_ldloc (mb, loc1);
4682 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4684 mono_mb_patch_branch (mb, pos2);
4687 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4689 /* Check for null */
4690 mono_mb_emit_ldloc (mb, conv_arg);
4691 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4694 mono_mb_emit_ldarg (mb, argnum);
4696 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4698 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4700 mono_mb_emit_ldloc (mb, conv_arg);
4701 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4702 mono_mb_emit_byte (mb, CEE_STIND_I);
4705 /* Call CleanUpManagedData */
4706 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4708 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4710 mono_mb_emit_ldloc (mb, conv_arg);
4711 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4713 mono_mb_patch_branch (mb, pos2);
4717 g_assert_not_reached ();
4725 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4726 MonoMarshalSpec *spec,
4727 int conv_arg, MonoType **conv_arg_type,
4728 MarshalAction action)
4731 MonoMethodBuilder *mb = m->mb;
4734 case MARSHAL_ACTION_CONV_IN: {
4735 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4737 g_assert (t->type == MONO_TYPE_OBJECT);
4738 g_assert (!t->byref);
4740 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4741 mono_mb_emit_ldarg (mb, argnum);
4742 mono_mb_emit_icon (mb, encoding);
4743 mono_mb_emit_icon (mb, t->attrs);
4744 mono_mb_emit_icall (mb, mono_marshal_asany);
4745 mono_mb_emit_stloc (mb, conv_arg);
4749 case MARSHAL_ACTION_PUSH:
4750 mono_mb_emit_ldloc (mb, conv_arg);
4753 case MARSHAL_ACTION_CONV_OUT: {
4754 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4756 mono_mb_emit_ldarg (mb, argnum);
4757 mono_mb_emit_ldloc (mb, conv_arg);
4758 mono_mb_emit_icon (mb, encoding);
4759 mono_mb_emit_icon (mb, t->attrs);
4760 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4765 g_assert_not_reached ();
4772 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4773 MonoMarshalSpec *spec,
4774 int conv_arg, MonoType **conv_arg_type,
4775 MarshalAction action)
4778 MonoMethodBuilder *mb = m->mb;
4779 MonoClass *klass, *date_time_class;
4782 klass = mono_class_from_mono_type (t);
4784 date_time_class = mono_class_get_date_time_class ();
4787 case MARSHAL_ACTION_CONV_IN:
4788 if (klass == date_time_class) {
4789 /* Convert it to an OLE DATE type */
4790 static MonoMethod *to_oadate;
4793 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4794 g_assert (to_oadate);
4796 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4799 mono_mb_emit_ldarg (mb, argnum);
4800 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4803 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4805 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4807 mono_mb_emit_ldarg_addr (mb, argnum);
4808 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4809 mono_mb_emit_stloc (mb, conv_arg);
4813 mono_mb_patch_branch (mb, pos);
4817 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4818 klass->blittable || klass->enumtype)
4821 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4823 /* store the address of the source into local variable 0 */
4825 mono_mb_emit_ldarg (mb, argnum);
4827 mono_mb_emit_ldarg_addr (mb, argnum);
4829 mono_mb_emit_stloc (mb, 0);
4831 /* allocate space for the native struct and
4832 * store the address into local variable 1 (dest) */
4833 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4834 mono_mb_emit_byte (mb, CEE_PREFIX1);
4835 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4836 mono_mb_emit_stloc (mb, conv_arg);
4839 mono_mb_emit_ldloc (mb, 0);
4840 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4843 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4845 mono_mb_emit_ldloc (mb, conv_arg);
4846 mono_mb_emit_stloc (mb, 1);
4848 /* emit valuetype conversion code */
4849 emit_struct_conv (mb, klass, FALSE);
4853 mono_mb_patch_branch (mb, pos);
4856 case MARSHAL_ACTION_PUSH:
4857 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4859 g_assert (!t->byref);
4861 /* Have to change the signature since the vtype is passed byref */
4862 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4864 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4865 klass->blittable || klass->enumtype)
4866 mono_mb_emit_ldarg_addr (mb, argnum);
4868 mono_mb_emit_ldloc (mb, conv_arg);
4872 if (klass == date_time_class) {
4874 mono_mb_emit_ldloc_addr (mb, conv_arg);
4876 mono_mb_emit_ldloc (mb, conv_arg);
4880 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4881 klass->blittable || klass->enumtype) {
4882 mono_mb_emit_ldarg (mb, argnum);
4885 mono_mb_emit_ldloc (mb, conv_arg);
4887 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4888 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4892 case MARSHAL_ACTION_CONV_OUT:
4893 if (klass == date_time_class) {
4894 /* Convert from an OLE DATE type */
4895 static MonoMethod *from_oadate;
4900 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4902 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4903 g_assert (from_oadate);
4905 mono_mb_emit_ldarg (mb, argnum);
4906 mono_mb_emit_ldloc (mb, conv_arg);
4907 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4908 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4913 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4914 klass->blittable || klass->enumtype)
4918 /* dst = argument */
4919 mono_mb_emit_ldarg (mb, argnum);
4920 mono_mb_emit_stloc (mb, 1);
4922 mono_mb_emit_ldloc (mb, 1);
4923 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4925 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4926 /* src = tmp_locals [i] */
4927 mono_mb_emit_ldloc (mb, conv_arg);
4928 mono_mb_emit_stloc (mb, 0);
4930 /* emit valuetype conversion code */
4931 emit_struct_conv (mb, klass, TRUE);
4935 emit_struct_free (mb, klass, conv_arg);
4938 mono_mb_patch_branch (mb, pos);
4941 case MARSHAL_ACTION_CONV_RESULT:
4942 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4944 mono_mb_emit_stloc (mb, 3);
4948 /* load pointer to returned value type */
4949 g_assert (m->vtaddr_var);
4950 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4951 /* store the address of the source into local variable 0 */
4952 mono_mb_emit_stloc (mb, 0);
4954 mono_mb_emit_ldloc_addr (mb, 3);
4955 mono_mb_emit_stloc (mb, 1);
4957 /* emit valuetype conversion code */
4958 emit_struct_conv (mb, klass, TRUE);
4961 case MARSHAL_ACTION_MANAGED_CONV_IN:
4962 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4963 klass->blittable || klass->enumtype) {
4968 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4970 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4974 mono_mb_emit_ldarg (mb, argnum);
4976 mono_mb_emit_ldarg_addr (mb, argnum);
4977 mono_mb_emit_stloc (mb, 0);
4980 mono_mb_emit_ldloc (mb, 0);
4981 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4984 mono_mb_emit_ldloc_addr (mb, conv_arg);
4985 mono_mb_emit_stloc (mb, 1);
4987 /* emit valuetype conversion code */
4988 emit_struct_conv (mb, klass, TRUE);
4991 mono_mb_patch_branch (mb, pos);
4994 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4995 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4996 klass->blittable || klass->enumtype) {
5000 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5003 /* Check for null */
5004 mono_mb_emit_ldarg (mb, argnum);
5005 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5008 mono_mb_emit_ldloc_addr (mb, conv_arg);
5009 mono_mb_emit_stloc (mb, 0);
5012 mono_mb_emit_ldarg (mb, argnum);
5013 mono_mb_emit_stloc (mb, 1);
5015 /* emit valuetype conversion code */
5016 emit_struct_conv (mb, klass, FALSE);
5018 mono_mb_patch_branch (mb, pos2);
5021 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5022 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5023 klass->blittable || klass->enumtype) {
5024 mono_mb_emit_stloc (mb, 3);
5029 /* load pointer to returned value type */
5030 g_assert (m->vtaddr_var);
5031 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5033 /* store the address of the source into local variable 0 */
5034 mono_mb_emit_stloc (mb, 0);
5035 /* allocate space for the native struct and
5036 * store the address into dst_ptr */
5037 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5038 m->retobj_class = klass;
5039 g_assert (m->retobj_var);
5040 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5041 mono_mb_emit_byte (mb, CEE_CONV_I);
5042 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5043 mono_mb_emit_stloc (mb, 1);
5044 mono_mb_emit_ldloc (mb, 1);
5045 mono_mb_emit_stloc (mb, m->retobj_var);
5047 /* emit valuetype conversion code */
5048 emit_struct_conv (mb, klass, FALSE);
5052 g_assert_not_reached ();
5059 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5060 MonoMarshalSpec *spec,
5061 int conv_arg, MonoType **conv_arg_type,
5062 MarshalAction action)
5066 case MARSHAL_ACTION_CONV_IN:
5067 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5069 case MARSHAL_ACTION_MANAGED_CONV_IN:
5070 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5074 MonoMethodBuilder *mb = m->mb;
5075 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5076 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5080 case MARSHAL_ACTION_CONV_IN:
5081 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5082 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5085 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5088 mono_mb_emit_ldarg (mb, argnum);
5089 mono_mb_emit_byte (mb, CEE_LDIND_I);
5091 mono_mb_emit_ldarg (mb, argnum);
5095 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5096 mono_mb_emit_exception_marshal_directive (mb, msg);
5098 mono_mb_emit_icall (mb, conv_to_icall (conv));
5100 mono_mb_emit_stloc (mb, conv_arg);
5104 case MARSHAL_ACTION_CONV_OUT:
5105 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5107 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5108 mono_mb_emit_exception_marshal_directive (mb, msg);
5112 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5113 static MonoMethod *m;
5116 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5121 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5122 mono_mb_emit_exception_marshal_directive (mb, msg);
5127 * Have to allocate a new string with the same length as the original, and
5128 * copy the contents of the buffer pointed to by CONV_ARG into it.
5130 g_assert (t->byref);
5131 mono_mb_emit_ldarg (mb, argnum);
5132 mono_mb_emit_ldloc (mb, conv_arg);
5133 mono_mb_emit_ldarg (mb, argnum);
5134 mono_mb_emit_byte (mb, CEE_LDIND_I);
5135 mono_mb_emit_managed_call (mb, m, NULL);
5136 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5137 mono_mb_emit_byte (mb, CEE_STIND_REF);
5138 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_ldloc (mb, conv_arg);
5141 mono_mb_emit_icall (mb, conv_to_icall (conv));
5142 mono_mb_emit_byte (mb, CEE_STIND_REF);
5147 mono_mb_emit_ldloc (mb, conv_arg);
5148 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5149 mono_mb_emit_icall (mb, mono_free_bstr);
5151 mono_mb_emit_icall (mb, mono_marshal_free);
5155 case MARSHAL_ACTION_PUSH:
5156 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5157 mono_mb_emit_ldloc_addr (mb, conv_arg);
5159 mono_mb_emit_ldloc (mb, conv_arg);
5162 case MARSHAL_ACTION_CONV_RESULT:
5163 mono_mb_emit_stloc (mb, 0);
5165 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5167 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5168 mono_mb_emit_exception_marshal_directive (mb, msg);
5172 mono_mb_emit_ldloc (mb, 0);
5173 mono_mb_emit_icall (mb, conv_to_icall (conv));
5174 mono_mb_emit_stloc (mb, 3);
5176 /* free the string */
5177 mono_mb_emit_ldloc (mb, 0);
5178 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5179 mono_mb_emit_icall (mb, mono_free_bstr);
5181 mono_mb_emit_icall (mb, mono_marshal_free);
5184 case MARSHAL_ACTION_MANAGED_CONV_IN:
5185 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5187 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5190 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5194 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5196 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5197 mono_mb_emit_exception_marshal_directive (mb, msg);
5201 mono_mb_emit_ldarg (mb, argnum);
5203 mono_mb_emit_byte (mb, CEE_LDIND_I);
5204 mono_mb_emit_icall (mb, conv_to_icall (conv));
5205 mono_mb_emit_stloc (mb, conv_arg);
5208 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5211 mono_mb_emit_ldarg (mb, argnum);
5212 mono_mb_emit_ldloc (mb, conv_arg);
5213 mono_mb_emit_icall (mb, conv_to_icall (conv));
5214 mono_mb_emit_byte (mb, CEE_STIND_I);
5219 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5220 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5221 /* We need to make a copy so the caller is able to free it */
5222 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5224 mono_mb_emit_icall (mb, conv_to_icall (conv));
5225 mono_mb_emit_stloc (mb, 3);
5229 g_assert_not_reached ();
5237 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5238 MonoMarshalSpec *spec, int conv_arg,
5239 MonoType **conv_arg_type, MarshalAction action)
5242 if (action == MARSHAL_ACTION_CONV_IN)
5243 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5245 MonoMethodBuilder *mb = m->mb;
5248 case MARSHAL_ACTION_CONV_IN: {
5249 MonoType *intptr_type;
5250 int dar_release_slot, pos;
5252 intptr_type = &mono_defaults.int_class->byval_arg;
5253 conv_arg = mono_mb_add_local (mb, intptr_type);
5254 *conv_arg_type = intptr_type;
5256 if (!sh_dangerous_add_ref)
5257 init_safe_handle ();
5259 mono_mb_emit_ldarg (mb, argnum);
5260 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5261 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5263 mono_mb_patch_branch (mb, pos);
5266 * My tests in show that ref SafeHandles are not really
5267 * passed as ref objects. Instead a NULL is passed as the
5270 mono_mb_emit_icon (mb, 0);
5271 mono_mb_emit_stloc (mb, conv_arg);
5275 /* Create local to hold the ref parameter to DangerousAddRef */
5276 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5278 /* set release = false; */
5279 mono_mb_emit_icon (mb, 0);
5280 mono_mb_emit_stloc (mb, dar_release_slot);
5282 /* safehandle.DangerousAddRef (ref release) */
5283 mono_mb_emit_ldarg (mb, argnum);
5284 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5285 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5287 /* Pull the handle field from SafeHandle */
5288 mono_mb_emit_ldarg (mb, argnum);
5289 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5290 mono_mb_emit_byte (mb, CEE_LDIND_I);
5291 mono_mb_emit_stloc (mb, conv_arg);
5296 case MARSHAL_ACTION_PUSH:
5298 mono_mb_emit_ldloc_addr (mb, conv_arg);
5300 mono_mb_emit_ldloc (mb, conv_arg);
5303 case MARSHAL_ACTION_CONV_OUT: {
5304 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5305 int dar_release_slot = conv_arg + 1;
5308 if (!sh_dangerous_release)
5309 init_safe_handle ();
5315 * My tests indicate that ref SafeHandles parameters are not actually
5316 * passed by ref, but instead a new Handle is created regardless of
5317 * whether a change happens in the unmanaged side.
5319 * Also, the Handle is created before calling into unmanaged code,
5320 * but we do not support that mechanism (getting to the original
5321 * handle) and it makes no difference where we create this
5323 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5325 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5328 /* refval = new SafeHandleDerived ()*/
5329 mono_mb_emit_ldarg (mb, argnum);
5330 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5331 mono_mb_emit_byte (mb, CEE_STIND_REF);
5333 /* refval.handle = returned_handle */
5334 mono_mb_emit_ldarg (mb, argnum);
5335 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5336 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5337 mono_mb_emit_ldloc (mb, conv_arg);
5338 mono_mb_emit_byte (mb, CEE_STIND_I);
5340 mono_mb_emit_ldloc (mb, dar_release_slot);
5341 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5342 mono_mb_emit_ldarg (mb, argnum);
5343 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5344 mono_mb_patch_branch (mb, label_next);
5349 case MARSHAL_ACTION_CONV_RESULT: {
5350 MonoMethod *ctor = NULL;
5351 int intptr_handle_slot;
5353 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5354 mono_mb_emit_byte (mb, CEE_POP);
5355 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5359 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5361 mono_mb_emit_byte (mb, CEE_POP);
5362 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5365 /* Store the IntPtr results into a local */
5366 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5367 mono_mb_emit_stloc (mb, intptr_handle_slot);
5369 /* Create return value */
5370 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5371 mono_mb_emit_stloc (mb, 3);
5373 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5374 mono_mb_emit_ldloc (mb, 3);
5375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5376 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5377 mono_mb_emit_byte (mb, CEE_STIND_I);
5381 case MARSHAL_ACTION_MANAGED_CONV_IN:
5382 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5385 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5386 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5389 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5390 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5393 printf ("Unhandled case for MarshalAction: %d\n", action);
5401 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5402 MonoMarshalSpec *spec, int conv_arg,
5403 MonoType **conv_arg_type, MarshalAction action)
5406 if (action == MARSHAL_ACTION_CONV_IN)
5407 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5409 MonoMethodBuilder *mb = m->mb;
5412 case MARSHAL_ACTION_CONV_IN: {
5413 MonoType *intptr_type;
5415 intptr_type = &mono_defaults.int_class->byval_arg;
5416 conv_arg = mono_mb_add_local (mb, intptr_type);
5417 *conv_arg_type = intptr_type;
5420 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5421 mono_mb_emit_exception_marshal_directive (mb, msg);
5424 mono_mb_emit_ldarg_addr (mb, argnum);
5425 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5426 mono_mb_emit_byte (mb, CEE_ADD);
5427 mono_mb_emit_byte (mb, CEE_LDIND_I);
5428 mono_mb_emit_stloc (mb, conv_arg);
5432 case MARSHAL_ACTION_PUSH:
5433 mono_mb_emit_ldloc (mb, conv_arg);
5436 case MARSHAL_ACTION_CONV_OUT: {
5437 /* no resource release required */
5441 case MARSHAL_ACTION_CONV_RESULT: {
5442 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5443 mono_mb_emit_exception_marshal_directive (mb, msg);
5447 case MARSHAL_ACTION_MANAGED_CONV_IN:
5448 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5451 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5452 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5455 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5456 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5459 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5467 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5468 MonoMarshalSpec *spec,
5469 int conv_arg, MonoType **conv_arg_type,
5470 MarshalAction action)
5473 if (action == MARSHAL_ACTION_CONV_IN)
5474 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5476 MonoMethodBuilder *mb = m->mb;
5477 MonoClass *klass = mono_class_from_mono_type (t);
5481 case MARSHAL_ACTION_CONV_IN:
5482 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5483 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5485 m->orig_conv_args [argnum] = 0;
5487 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5488 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5489 mono_mb_emit_exception_marshal_directive (mb, msg);
5493 if (klass->delegate) {
5495 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5496 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5497 mono_mb_emit_exception_marshal_directive (mb, msg);
5499 mono_mb_emit_byte (mb, CEE_LDNULL);
5500 mono_mb_emit_stloc (mb, conv_arg);
5502 mono_mb_emit_ldarg (mb, argnum);
5503 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5504 mono_mb_emit_stloc (mb, conv_arg);
5506 } else if (klass == mono_defaults.stringbuilder_class) {
5507 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5508 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5512 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5513 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5514 mono_mb_emit_exception_marshal_directive (mb, msg);
5520 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5524 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5525 mono_mb_emit_exception_marshal_directive (mb, msg);
5529 mono_mb_emit_ldarg (mb, argnum);
5531 mono_mb_emit_byte (mb, CEE_LDIND_I);
5533 mono_mb_emit_icall (mb, conv_to_icall (conv));
5534 mono_mb_emit_stloc (mb, conv_arg);
5535 } else if (klass->blittable) {
5536 mono_mb_emit_byte (mb, CEE_LDNULL);
5537 mono_mb_emit_stloc (mb, conv_arg);
5539 mono_mb_emit_ldarg (mb, argnum);
5540 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5542 mono_mb_emit_ldarg (mb, argnum);
5543 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5544 mono_mb_emit_stloc (mb, conv_arg);
5546 mono_mb_patch_branch (mb, pos);
5549 mono_mb_emit_byte (mb, CEE_LDNULL);
5550 mono_mb_emit_stloc (mb, conv_arg);
5553 /* we dont need any conversions for out parameters */
5554 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5557 mono_mb_emit_ldarg (mb, argnum);
5558 mono_mb_emit_byte (mb, CEE_LDIND_I);
5561 mono_mb_emit_ldarg (mb, argnum);
5562 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5563 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5566 /* store the address of the source into local variable 0 */
5567 mono_mb_emit_stloc (mb, 0);
5568 mono_mb_emit_ldloc (mb, 0);
5569 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5571 /* allocate space for the native struct and store the address */
5572 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5573 mono_mb_emit_byte (mb, CEE_PREFIX1);
5574 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5575 mono_mb_emit_stloc (mb, conv_arg);
5578 /* Need to store the original buffer so we can free it later */
5579 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5580 mono_mb_emit_ldloc (mb, conv_arg);
5581 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5584 /* set the src_ptr */
5585 mono_mb_emit_ldloc (mb, 0);
5586 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5587 mono_mb_emit_stloc (mb, 0);
5590 mono_mb_emit_ldloc (mb, conv_arg);
5591 mono_mb_emit_stloc (mb, 1);
5593 /* emit valuetype conversion code */
5594 emit_struct_conv (mb, klass, FALSE);
5596 mono_mb_patch_branch (mb, pos);
5600 case MARSHAL_ACTION_CONV_OUT:
5601 if (klass == mono_defaults.stringbuilder_class) {
5603 MonoMarshalNative encoding;
5604 MonoMarshalConv conv;
5606 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5607 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5609 g_assert (encoding != -1);
5612 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5616 mono_mb_emit_ldarg (mb, argnum);
5617 mono_mb_emit_ldloc (mb, conv_arg);
5620 case MONO_NATIVE_LPWSTR:
5621 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5623 case MONO_NATIVE_LPSTR:
5624 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5627 g_assert_not_reached ();
5630 mono_mb_emit_byte (mb, CEE_STIND_REF);
5632 mono_mb_emit_ldarg (mb, argnum);
5633 mono_mb_emit_ldloc (mb, conv_arg);
5635 mono_mb_emit_icall (mb, conv_to_icall (conv));
5639 mono_mb_emit_ldloc (mb, conv_arg);
5640 mono_mb_emit_icall (mb, mono_marshal_free);
5645 if (klass->delegate) {
5647 mono_mb_emit_ldarg (mb, argnum);
5648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5649 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5650 mono_mb_emit_ldloc (mb, conv_arg);
5651 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5652 mono_mb_emit_byte (mb, CEE_STIND_REF);
5657 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5658 /* allocate a new object */
5659 mono_mb_emit_ldarg (mb, argnum);
5660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5661 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5662 mono_mb_emit_byte (mb, CEE_STIND_REF);
5665 /* dst = *argument */
5666 mono_mb_emit_ldarg (mb, argnum);
5669 mono_mb_emit_byte (mb, CEE_LDIND_I);
5671 mono_mb_emit_stloc (mb, 1);
5673 mono_mb_emit_ldloc (mb, 1);
5674 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5676 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5677 mono_mb_emit_ldloc (mb, 1);
5678 mono_mb_emit_icon (mb, sizeof (MonoObject));
5679 mono_mb_emit_byte (mb, CEE_ADD);
5680 mono_mb_emit_stloc (mb, 1);
5682 /* src = tmp_locals [i] */
5683 mono_mb_emit_ldloc (mb, conv_arg);
5684 mono_mb_emit_stloc (mb, 0);
5686 /* emit valuetype conversion code */
5687 emit_struct_conv (mb, klass, TRUE);
5689 /* Free the structure returned by the native code */
5690 emit_struct_free (mb, klass, conv_arg);
5692 if (m->orig_conv_args [argnum]) {
5694 * If the native function changed the pointer, then free
5695 * the original structure plus the new pointer.
5697 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5698 mono_mb_emit_ldloc (mb, conv_arg);
5699 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5701 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5702 g_assert (m->orig_conv_args [argnum]);
5704 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5707 mono_mb_emit_ldloc (mb, conv_arg);
5708 mono_mb_emit_icall (mb, mono_marshal_free);
5710 mono_mb_patch_branch (mb, pos2);
5714 /* Free the original structure passed to native code */
5715 emit_struct_free (mb, klass, conv_arg);
5717 mono_mb_patch_branch (mb, pos);
5720 case MARSHAL_ACTION_PUSH:
5722 mono_mb_emit_ldloc_addr (mb, conv_arg);
5724 mono_mb_emit_ldloc (mb, conv_arg);
5727 case MARSHAL_ACTION_CONV_RESULT:
5728 if (klass->delegate) {
5729 g_assert (!t->byref);
5730 mono_mb_emit_stloc (mb, 0);
5731 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5732 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5733 mono_mb_emit_ldloc (mb, 0);
5734 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5735 mono_mb_emit_stloc (mb, 3);
5738 mono_mb_emit_stloc (mb, 0);
5740 /* Make a copy since emit_conv modifies local 0 */
5741 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5742 mono_mb_emit_ldloc (mb, 0);
5743 mono_mb_emit_stloc (mb, loc);
5745 mono_mb_emit_byte (mb, CEE_LDNULL);
5746 mono_mb_emit_stloc (mb, 3);
5748 mono_mb_emit_ldloc (mb, 0);
5749 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5751 /* allocate result object */
5753 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5754 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5755 mono_mb_emit_stloc (mb, 3);
5759 mono_mb_emit_ldloc (mb, 3);
5760 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5761 mono_mb_emit_stloc (mb, 1);
5763 /* emit conversion code */
5764 emit_struct_conv (mb, klass, TRUE);
5766 emit_struct_free (mb, klass, loc);
5768 /* Free the pointer allocated by unmanaged code */
5769 mono_mb_emit_ldloc (mb, loc);
5770 mono_mb_emit_icall (mb, mono_marshal_free);
5771 mono_mb_patch_branch (mb, pos);
5775 case MARSHAL_ACTION_MANAGED_CONV_IN:
5776 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5778 if (klass->delegate) {
5779 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5780 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5781 mono_mb_emit_ldarg (mb, argnum);
5783 mono_mb_emit_byte (mb, CEE_LDIND_I);
5784 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5785 mono_mb_emit_stloc (mb, conv_arg);
5789 if (klass == mono_defaults.stringbuilder_class) {
5790 MonoMarshalNative encoding;
5792 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5795 g_assert (encoding == MONO_NATIVE_LPSTR);
5797 g_assert (!t->byref);
5798 g_assert (encoding != -1);
5800 mono_mb_emit_ldarg (mb, argnum);
5801 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5802 mono_mb_emit_stloc (mb, conv_arg);
5806 /* The class can not have an automatic layout */
5807 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5808 mono_mb_emit_auto_layout_exception (mb, klass);
5812 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5813 mono_mb_emit_byte (mb, CEE_LDNULL);
5814 mono_mb_emit_stloc (mb, conv_arg);
5819 mono_mb_emit_ldarg (mb, argnum);
5823 /* Check for NULL and raise an exception */
5824 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5826 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5828 mono_mb_patch_branch (mb, pos2);
5829 mono_mb_emit_ldarg (mb, argnum);
5830 mono_mb_emit_byte (mb, CEE_LDIND_I);
5833 mono_mb_emit_stloc (mb, 0);
5835 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5836 mono_mb_emit_stloc (mb, conv_arg);
5838 mono_mb_emit_ldloc (mb, 0);
5839 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5841 /* Create and set dst */
5842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5843 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5844 mono_mb_emit_stloc (mb, conv_arg);
5845 mono_mb_emit_ldloc (mb, conv_arg);
5846 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5847 mono_mb_emit_stloc (mb, 1);
5849 /* emit valuetype conversion code */
5850 emit_struct_conv (mb, klass, TRUE);
5852 mono_mb_patch_branch (mb, pos);
5855 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5856 if (klass->delegate) {
5858 mono_mb_emit_ldarg (mb, argnum);
5859 mono_mb_emit_ldloc (mb, conv_arg);
5860 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5861 mono_mb_emit_byte (mb, CEE_STIND_I);
5867 /* Check for null */
5868 mono_mb_emit_ldloc (mb, conv_arg);
5869 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5870 mono_mb_emit_ldarg (mb, argnum);
5871 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5872 mono_mb_emit_byte (mb, CEE_STIND_REF);
5873 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5875 mono_mb_patch_branch (mb, pos);
5878 mono_mb_emit_ldloc (mb, conv_arg);
5879 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5880 mono_mb_emit_stloc (mb, 0);
5882 /* Allocate and set dest */
5883 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5884 mono_mb_emit_byte (mb, CEE_CONV_I);
5885 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5886 mono_mb_emit_stloc (mb, 1);
5888 /* Update argument pointer */
5889 mono_mb_emit_ldarg (mb, argnum);
5890 mono_mb_emit_ldloc (mb, 1);
5891 mono_mb_emit_byte (mb, CEE_STIND_I);
5893 /* emit valuetype conversion code */
5894 emit_struct_conv (mb, klass, FALSE);
5896 mono_mb_patch_branch (mb, pos2);
5897 } else if (klass == mono_defaults.stringbuilder_class) {
5898 // FIXME: What to do here ?
5900 /* byval [Out] marshalling */
5902 /* FIXME: Handle null */
5905 mono_mb_emit_ldloc (mb, conv_arg);
5906 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5907 mono_mb_emit_stloc (mb, 0);
5910 mono_mb_emit_ldarg (mb, argnum);
5911 mono_mb_emit_stloc (mb, 1);
5913 /* emit valuetype conversion code */
5914 emit_struct_conv (mb, klass, FALSE);
5918 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5919 if (klass->delegate) {
5920 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5921 mono_mb_emit_stloc (mb, 3);
5925 /* The class can not have an automatic layout */
5926 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5927 mono_mb_emit_auto_layout_exception (mb, klass);
5931 mono_mb_emit_stloc (mb, 0);
5932 /* Check for null */
5933 mono_mb_emit_ldloc (mb, 0);
5934 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5935 mono_mb_emit_byte (mb, CEE_LDNULL);
5936 mono_mb_emit_stloc (mb, 3);
5937 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5939 mono_mb_patch_branch (mb, pos);
5942 mono_mb_emit_ldloc (mb, 0);
5943 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5944 mono_mb_emit_stloc (mb, 0);
5946 /* Allocate and set dest */
5947 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5948 mono_mb_emit_byte (mb, CEE_CONV_I);
5949 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5950 mono_mb_emit_byte (mb, CEE_DUP);
5951 mono_mb_emit_stloc (mb, 1);
5952 mono_mb_emit_stloc (mb, 3);
5954 emit_struct_conv (mb, klass, FALSE);
5956 mono_mb_patch_branch (mb, pos2);
5960 g_assert_not_reached ();
5971 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5972 MonoMarshalSpec *spec,
5973 int conv_arg, MonoType **conv_arg_type,
5974 MarshalAction action)
5976 MonoMethodBuilder *mb = m->mb;
5977 static MonoMethod *get_object_for_native_variant = NULL;
5978 static MonoMethod *get_native_variant_for_object = NULL;
5980 if (!get_object_for_native_variant)
5981 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5982 g_assert (get_object_for_native_variant);
5984 if (!get_native_variant_for_object)
5985 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5986 g_assert (get_native_variant_for_object);
5989 case MARSHAL_ACTION_CONV_IN: {
5990 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5993 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5995 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5997 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6000 mono_mb_emit_ldarg (mb, argnum);
6002 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6003 mono_mb_emit_ldloc_addr (mb, conv_arg);
6004 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6008 case MARSHAL_ACTION_CONV_OUT: {
6009 static MonoMethod *variant_clear = NULL;
6012 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6013 g_assert (variant_clear);
6016 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6017 mono_mb_emit_ldarg (mb, argnum);
6018 mono_mb_emit_ldloc_addr (mb, conv_arg);
6019 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6020 mono_mb_emit_byte (mb, CEE_STIND_REF);
6023 mono_mb_emit_ldloc_addr (mb, conv_arg);
6024 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6028 case MARSHAL_ACTION_PUSH:
6030 mono_mb_emit_ldloc_addr (mb, conv_arg);
6032 mono_mb_emit_ldloc (mb, conv_arg);
6035 case MARSHAL_ACTION_CONV_RESULT: {
6036 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6037 mono_mb_emit_exception_marshal_directive (mb, msg);
6041 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6042 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6045 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6047 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6049 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6053 mono_mb_emit_ldarg (mb, argnum);
6055 mono_mb_emit_ldarg_addr (mb, argnum);
6056 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6057 mono_mb_emit_stloc (mb, conv_arg);
6061 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6062 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6063 mono_mb_emit_ldloc (mb, conv_arg);
6064 mono_mb_emit_ldarg (mb, argnum);
6065 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6070 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6071 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6072 mono_mb_emit_exception_marshal_directive (mb, msg);
6077 g_assert_not_reached ();
6083 #endif /* DISABLE_COM */
6084 #endif /* DISABLE_JIT */
6087 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6089 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6090 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6092 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6094 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6106 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6107 MonoMarshalSpec *spec,
6108 int conv_arg, MonoType **conv_arg_type,
6109 MarshalAction action)
6113 case MARSHAL_ACTION_CONV_IN:
6114 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6116 case MARSHAL_ACTION_MANAGED_CONV_IN:
6117 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6121 MonoMethodBuilder *mb = m->mb;
6122 MonoClass *klass = mono_class_from_mono_type (t);
6123 gboolean need_convert, need_free;
6124 MonoMarshalNative encoding;
6126 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6129 case MARSHAL_ACTION_CONV_IN:
6130 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6131 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6133 if (klass->element_class->blittable) {
6134 mono_mb_emit_ldarg (mb, argnum);
6136 mono_mb_emit_byte (mb, CEE_LDIND_I);
6137 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6138 mono_mb_emit_stloc (mb, conv_arg);
6141 guint32 label1, label2, label3;
6142 int index_var, src_var, dest_ptr, esize;
6143 MonoMarshalConv conv;
6144 gboolean is_string = FALSE;
6146 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6148 eklass = klass->element_class;
6150 if (eklass == mono_defaults.string_class) {
6152 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6154 else if (eklass == mono_defaults.stringbuilder_class) {
6156 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6159 conv = (MonoMarshalConv)-1;
6161 if (is_string && conv == -1) {
6162 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6163 mono_mb_emit_exception_marshal_directive (mb, msg);
6167 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6168 mono_mb_emit_ldarg (mb, argnum);
6170 mono_mb_emit_byte (mb, CEE_LDIND_I);
6171 mono_mb_emit_stloc (mb, src_var);
6174 mono_mb_emit_ldloc (mb, src_var);
6175 mono_mb_emit_stloc (mb, conv_arg);
6176 mono_mb_emit_ldloc (mb, src_var);
6177 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6180 esize = sizeof (gpointer);
6181 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6182 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6184 esize = mono_class_native_size (eklass, NULL);
6186 /* allocate space for the native struct and store the address */
6187 mono_mb_emit_icon (mb, esize);
6188 mono_mb_emit_ldloc (mb, src_var);
6189 mono_mb_emit_byte (mb, CEE_LDLEN);
6191 if (eklass == mono_defaults.string_class) {
6192 /* Make the array bigger for the terminating null */
6193 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6194 mono_mb_emit_byte (mb, CEE_ADD);
6196 mono_mb_emit_byte (mb, CEE_MUL);
6197 mono_mb_emit_byte (mb, CEE_PREFIX1);
6198 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6199 mono_mb_emit_stloc (mb, conv_arg);
6201 mono_mb_emit_ldloc (mb, conv_arg);
6202 mono_mb_emit_stloc (mb, dest_ptr);
6204 /* Emit marshalling loop */
6205 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6206 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6207 mono_mb_emit_stloc (mb, index_var);
6208 label2 = mono_mb_get_label (mb);
6209 mono_mb_emit_ldloc (mb, index_var);
6210 mono_mb_emit_ldloc (mb, src_var);
6211 mono_mb_emit_byte (mb, CEE_LDLEN);
6212 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6214 /* Emit marshalling code */
6217 mono_mb_emit_ldloc (mb, dest_ptr);
6218 mono_mb_emit_ldloc (mb, src_var);
6219 mono_mb_emit_ldloc (mb, index_var);
6220 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6221 mono_mb_emit_icall (mb, conv_to_icall (conv));
6222 mono_mb_emit_byte (mb, CEE_STIND_I);
6224 /* set the src_ptr */
6225 mono_mb_emit_ldloc (mb, src_var);
6226 mono_mb_emit_ldloc (mb, index_var);
6227 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6228 mono_mb_emit_stloc (mb, 0);
6231 mono_mb_emit_ldloc (mb, dest_ptr);
6232 mono_mb_emit_stloc (mb, 1);
6234 /* emit valuetype conversion code */
6235 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6238 mono_mb_emit_add_to_local (mb, index_var, 1);
6239 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6241 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6243 mono_mb_patch_branch (mb, label3);
6245 if (eklass == mono_defaults.string_class) {
6246 /* Null terminate */
6247 mono_mb_emit_ldloc (mb, dest_ptr);
6248 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6249 mono_mb_emit_byte (mb, CEE_STIND_REF);
6252 mono_mb_patch_branch (mb, label1);
6257 case MARSHAL_ACTION_CONV_OUT:
6258 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6259 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);
6260 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6263 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6264 int param_num = spec->data.array_data.param_num;
6265 MonoType *param_type;
6267 param_type = m->sig->params [param_num];
6269 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6270 char *msg = g_strdup ("Not implemented.");
6271 mono_mb_emit_exception_marshal_directive (mb, msg);
6276 mono_mb_emit_ldarg (mb, argnum);
6278 /* Create the managed array */
6279 mono_mb_emit_ldarg (mb, param_num);
6280 if (m->sig->params [param_num]->byref)
6281 // FIXME: Support other types
6282 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6283 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6284 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6285 /* Store into argument */
6286 mono_mb_emit_byte (mb, CEE_STIND_I);
6290 if (need_convert || need_free) {
6291 /* FIXME: Optimize blittable case */
6293 guint32 label1, label2, label3;
6294 int index_var, src_ptr, loc, esize;
6296 eklass = klass->element_class;
6297 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6298 esize = sizeof (gpointer);
6299 else if (eklass == mono_defaults.char_class)
6300 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6302 esize = mono_class_native_size (eklass, NULL);
6303 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6304 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6307 mono_mb_emit_ldarg (mb, argnum);
6309 mono_mb_emit_byte (mb, CEE_LDIND_I);
6310 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6312 mono_mb_emit_ldloc (mb, conv_arg);
6313 mono_mb_emit_stloc (mb, src_ptr);
6315 /* Emit marshalling loop */
6316 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6317 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6318 mono_mb_emit_stloc (mb, index_var);
6319 label2 = mono_mb_get_label (mb);
6320 mono_mb_emit_ldloc (mb, index_var);
6321 mono_mb_emit_ldarg (mb, argnum);
6323 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6324 mono_mb_emit_byte (mb, CEE_LDLEN);
6325 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6327 /* Emit marshalling code */
6329 if (eklass == mono_defaults.stringbuilder_class) {
6330 gboolean need_free2;
6331 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6333 g_assert (conv != -1);
6336 mono_mb_emit_ldarg (mb, argnum);
6338 mono_mb_emit_byte (mb, CEE_LDIND_I);
6339 mono_mb_emit_ldloc (mb, index_var);
6340 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6343 mono_mb_emit_ldloc (mb, src_ptr);
6344 mono_mb_emit_byte (mb, CEE_LDIND_I);
6346 mono_mb_emit_icall (mb, conv_to_icall (conv));
6350 mono_mb_emit_ldloc (mb, src_ptr);
6351 mono_mb_emit_byte (mb, CEE_LDIND_I);
6353 mono_mb_emit_icall (mb, mono_marshal_free);
6356 else if (eklass == mono_defaults.string_class) {
6359 mono_mb_emit_ldloc (mb, src_ptr);
6360 mono_mb_emit_byte (mb, CEE_LDIND_I);
6362 mono_mb_emit_icall (mb, mono_marshal_free);
6367 /* set the src_ptr */
6368 mono_mb_emit_ldloc (mb, src_ptr);
6369 mono_mb_emit_stloc (mb, 0);
6372 mono_mb_emit_ldarg (mb, argnum);
6374 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6375 mono_mb_emit_ldloc (mb, index_var);
6376 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6377 mono_mb_emit_stloc (mb, 1);
6379 /* emit valuetype conversion code */
6380 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6384 mono_mb_emit_ldloc (mb, src_ptr);
6385 mono_mb_emit_stloc (mb, loc);
6386 mono_mb_emit_ldloc (mb, loc);
6388 emit_struct_free (mb, eklass, loc);
6392 mono_mb_emit_add_to_local (mb, index_var, 1);
6393 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6395 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6397 mono_mb_patch_branch (mb, label1);
6398 mono_mb_patch_branch (mb, label3);
6401 if (klass->element_class->blittable) {
6402 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6404 mono_mb_emit_ldarg (mb, argnum);
6406 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6407 mono_mb_emit_ldloc (mb, conv_arg);
6408 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6413 case MARSHAL_ACTION_PUSH:
6415 mono_mb_emit_ldloc_addr (mb, conv_arg);
6417 mono_mb_emit_ldloc (mb, conv_arg);
6420 case MARSHAL_ACTION_CONV_RESULT:
6421 /* fixme: we need conversions here */
6422 mono_mb_emit_stloc (mb, 3);
6425 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6427 guint32 label1, label2, label3;
6428 int index_var, src_ptr, esize, param_num, num_elem;
6429 MonoMarshalConv conv;
6430 gboolean is_string = FALSE;
6432 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6433 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6436 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6437 mono_mb_emit_exception_marshal_directive (mb, msg);
6441 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6442 mono_mb_emit_exception_marshal_directive (mb, msg);
6445 if (spec->native != MONO_NATIVE_LPARRAY) {
6446 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6447 mono_mb_emit_exception_marshal_directive (mb, msg);
6451 /* FIXME: t is from the method which is wrapped, not the delegate type */
6452 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6454 param_num = spec->data.array_data.param_num;
6455 num_elem = spec->data.array_data.num_elem;
6456 if (spec->data.array_data.elem_mult == 0)
6457 /* param_num is not specified */
6460 if (param_num == -1) {
6461 if (num_elem <= 0) {
6462 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6463 mono_mb_emit_exception_marshal_directive (mb, msg);
6468 /* FIXME: Optimize blittable case */
6470 eklass = klass->element_class;
6471 if (eklass == mono_defaults.string_class) {
6473 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6475 else if (eklass == mono_defaults.stringbuilder_class) {
6477 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6480 conv = (MonoMarshalConv)-1;
6482 mono_marshal_load_type_info (eklass);
6485 esize = sizeof (gpointer);
6487 esize = mono_class_native_size (eklass, NULL);
6488 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6490 mono_mb_emit_byte (mb, CEE_LDNULL);
6491 mono_mb_emit_stloc (mb, conv_arg);
6493 /* Check param index */
6494 if (param_num != -1) {
6495 if (param_num >= m->sig->param_count) {
6496 char *msg = g_strdup ("Array size control parameter index is out of range.");
6497 mono_mb_emit_exception_marshal_directive (mb, msg);
6500 switch (m->sig->params [param_num]->type) {
6513 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6514 mono_mb_emit_exception_marshal_directive (mb, msg);
6521 mono_mb_emit_ldarg (mb, argnum);
6522 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6524 mono_mb_emit_ldarg (mb, argnum);
6525 mono_mb_emit_stloc (mb, src_ptr);
6527 /* Create managed array */
6529 * The LPArray marshalling spec says that sometimes param_num starts
6530 * from 1, sometimes it starts from 0. But MS seems to allways start
6534 if (param_num == -1) {
6535 mono_mb_emit_icon (mb, num_elem);
6537 mono_mb_emit_ldarg (mb, param_num);
6539 mono_mb_emit_icon (mb, num_elem);
6540 mono_mb_emit_byte (mb, CEE_ADD);
6542 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6545 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6546 mono_mb_emit_stloc (mb, conv_arg);
6548 if (eklass->blittable) {
6549 mono_mb_emit_ldloc (mb, conv_arg);
6550 mono_mb_emit_byte (mb, CEE_CONV_I);
6551 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6552 mono_mb_emit_byte (mb, CEE_ADD);
6553 mono_mb_emit_ldarg (mb, argnum);
6554 mono_mb_emit_ldloc (mb, conv_arg);
6555 mono_mb_emit_byte (mb, CEE_LDLEN);
6556 mono_mb_emit_icon (mb, esize);
6557 mono_mb_emit_byte (mb, CEE_MUL);
6558 mono_mb_emit_byte (mb, CEE_PREFIX1);
6559 mono_mb_emit_byte (mb, CEE_CPBLK);
6563 /* Emit marshalling loop */
6564 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6565 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6566 mono_mb_emit_stloc (mb, index_var);
6567 label2 = mono_mb_get_label (mb);
6568 mono_mb_emit_ldloc (mb, index_var);
6569 mono_mb_emit_ldloc (mb, conv_arg);
6570 mono_mb_emit_byte (mb, CEE_LDLEN);
6571 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6573 /* Emit marshalling code */
6575 g_assert (conv != -1);
6577 mono_mb_emit_ldloc (mb, conv_arg);
6578 mono_mb_emit_ldloc (mb, index_var);
6580 mono_mb_emit_ldloc (mb, src_ptr);
6581 mono_mb_emit_byte (mb, CEE_LDIND_I);
6583 mono_mb_emit_icall (mb, conv_to_icall (conv));
6584 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6587 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6588 mono_mb_emit_exception_marshal_directive (mb, msg);
6592 mono_mb_emit_add_to_local (mb, index_var, 1);
6593 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6595 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6597 mono_mb_patch_branch (mb, label1);
6598 mono_mb_patch_branch (mb, label3);
6602 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6604 guint32 label1, label2, label3;
6605 int index_var, dest_ptr, esize, param_num, num_elem;
6606 MonoMarshalConv conv;
6607 gboolean is_string = FALSE;
6610 /* Already handled in CONV_IN */
6613 /* These are already checked in CONV_IN */
6614 g_assert (!t->byref);
6615 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6616 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6618 param_num = spec->data.array_data.param_num;
6619 num_elem = spec->data.array_data.num_elem;
6621 if (spec->data.array_data.elem_mult == 0)
6622 /* param_num is not specified */
6625 if (param_num == -1) {
6626 if (num_elem <= 0) {
6627 g_assert_not_reached ();
6631 /* FIXME: Optimize blittable case */
6633 eklass = klass->element_class;
6634 if (eklass == mono_defaults.string_class) {
6636 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6638 else if (eklass == mono_defaults.stringbuilder_class) {
6640 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6643 conv = (MonoMarshalConv)-1;
6645 mono_marshal_load_type_info (eklass);
6648 esize = sizeof (gpointer);
6650 esize = mono_class_native_size (eklass, NULL);
6652 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6655 mono_mb_emit_ldloc (mb, conv_arg);
6656 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6658 mono_mb_emit_ldarg (mb, argnum);
6659 mono_mb_emit_stloc (mb, dest_ptr);
6661 if (eklass->blittable) {
6663 mono_mb_emit_ldarg (mb, argnum);
6665 mono_mb_emit_ldloc (mb, conv_arg);
6666 mono_mb_emit_byte (mb, CEE_CONV_I);
6667 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6668 mono_mb_emit_byte (mb, CEE_ADD);
6670 mono_mb_emit_ldloc (mb, conv_arg);
6671 mono_mb_emit_byte (mb, CEE_LDLEN);
6672 mono_mb_emit_icon (mb, esize);
6673 mono_mb_emit_byte (mb, CEE_MUL);
6674 mono_mb_emit_byte (mb, CEE_PREFIX1);
6675 mono_mb_emit_byte (mb, CEE_CPBLK);
6679 /* Emit marshalling loop */
6680 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6681 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6682 mono_mb_emit_stloc (mb, index_var);
6683 label2 = mono_mb_get_label (mb);
6684 mono_mb_emit_ldloc (mb, index_var);
6685 mono_mb_emit_ldloc (mb, conv_arg);
6686 mono_mb_emit_byte (mb, CEE_LDLEN);
6687 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6689 /* Emit marshalling code */
6691 g_assert (conv != -1);
6694 mono_mb_emit_ldloc (mb, dest_ptr);
6697 mono_mb_emit_ldloc (mb, conv_arg);
6698 mono_mb_emit_ldloc (mb, index_var);
6700 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6702 mono_mb_emit_icall (mb, conv_to_icall (conv));
6703 mono_mb_emit_byte (mb, CEE_STIND_I);
6706 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6707 mono_mb_emit_exception_marshal_directive (mb, msg);
6711 mono_mb_emit_add_to_local (mb, index_var, 1);
6712 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6714 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6716 mono_mb_patch_branch (mb, label1);
6717 mono_mb_patch_branch (mb, label3);
6721 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6723 guint32 label1, label2, label3;
6724 int index_var, src, dest, esize;
6725 MonoMarshalConv conv = (MonoMarshalConv)-1;
6726 gboolean is_string = FALSE;
6728 g_assert (!t->byref);
6730 eklass = klass->element_class;
6732 mono_marshal_load_type_info (eklass);
6734 if (eklass == mono_defaults.string_class) {
6736 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6739 g_assert_not_reached ();
6743 esize = sizeof (gpointer);
6744 else if (eklass == mono_defaults.char_class)
6745 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6747 esize = mono_class_native_size (eklass, NULL);
6749 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6750 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6752 mono_mb_emit_stloc (mb, src);
6753 mono_mb_emit_ldloc (mb, src);
6754 mono_mb_emit_stloc (mb, 3);
6756 /* Check for null */
6757 mono_mb_emit_ldloc (mb, src);
6758 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6760 /* Allocate native array */
6761 mono_mb_emit_icon (mb, esize);
6762 mono_mb_emit_ldloc (mb, src);
6763 mono_mb_emit_byte (mb, CEE_LDLEN);
6765 if (eklass == mono_defaults.string_class) {
6766 /* Make the array bigger for the terminating null */
6767 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6768 mono_mb_emit_byte (mb, CEE_ADD);
6770 mono_mb_emit_byte (mb, CEE_MUL);
6771 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6772 mono_mb_emit_stloc (mb, dest);
6773 mono_mb_emit_ldloc (mb, dest);
6774 mono_mb_emit_stloc (mb, 3);
6776 /* Emit marshalling loop */
6777 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6778 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6779 mono_mb_emit_stloc (mb, index_var);
6780 label2 = mono_mb_get_label (mb);
6781 mono_mb_emit_ldloc (mb, index_var);
6782 mono_mb_emit_ldloc (mb, src);
6783 mono_mb_emit_byte (mb, CEE_LDLEN);
6784 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6786 /* Emit marshalling code */
6788 g_assert (conv != -1);
6791 mono_mb_emit_ldloc (mb, dest);
6794 mono_mb_emit_ldloc (mb, src);
6795 mono_mb_emit_ldloc (mb, index_var);
6797 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6799 mono_mb_emit_icall (mb, conv_to_icall (conv));
6800 mono_mb_emit_byte (mb, CEE_STIND_I);
6803 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6804 mono_mb_emit_exception_marshal_directive (mb, msg);
6808 mono_mb_emit_add_to_local (mb, index_var, 1);
6809 mono_mb_emit_add_to_local (mb, dest, esize);
6811 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6813 mono_mb_patch_branch (mb, label3);
6814 mono_mb_patch_branch (mb, label1);
6818 g_assert_not_reached ();
6825 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6828 return &mono_defaults.int32_class->byval_arg;
6830 switch (spec->native) {
6831 case MONO_NATIVE_I1:
6832 case MONO_NATIVE_U1:
6833 return &mono_defaults.byte_class->byval_arg;
6834 case MONO_NATIVE_VARIANTBOOL:
6835 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6836 return &mono_defaults.int16_class->byval_arg;
6837 case MONO_NATIVE_BOOLEAN:
6838 return &mono_defaults.int32_class->byval_arg;
6840 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6841 return &mono_defaults.int32_class->byval_arg;
6847 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6849 MonoClass* conv_arg_class = mono_defaults.int32_class;
6851 switch (spec->native) {
6852 case MONO_NATIVE_I1:
6853 case MONO_NATIVE_U1:
6854 conv_arg_class = mono_defaults.byte_class;
6855 if (ldop) *ldop = CEE_LDIND_I1;
6857 case MONO_NATIVE_VARIANTBOOL:
6858 conv_arg_class = mono_defaults.int16_class;
6859 if (ldop) *ldop = CEE_LDIND_I2;
6861 case MONO_NATIVE_BOOLEAN:
6864 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6867 return conv_arg_class;
6871 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6872 MonoMarshalSpec *spec,
6873 int conv_arg, MonoType **conv_arg_type,
6874 MarshalAction action)
6878 case MARSHAL_ACTION_CONV_IN:
6880 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6882 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6885 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6886 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6888 *conv_arg_type = &conv_arg_class->this_arg;
6890 *conv_arg_type = &conv_arg_class->byval_arg;
6896 MonoMethodBuilder *mb = m->mb;
6899 case MARSHAL_ACTION_CONV_IN: {
6900 MonoType *local_type;
6902 guint8 ldc_op = CEE_LDC_I4_1;
6904 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6906 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6908 *conv_arg_type = local_type;
6909 conv_arg = mono_mb_add_local (mb, local_type);
6911 mono_mb_emit_ldarg (mb, argnum);
6913 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6914 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6915 mono_mb_emit_byte (mb, ldc_op);
6916 mono_mb_emit_stloc (mb, conv_arg);
6917 mono_mb_patch_branch (mb, label_false);
6922 case MARSHAL_ACTION_CONV_OUT:
6924 int label_false, label_end;
6928 mono_mb_emit_ldarg (mb, argnum);
6929 mono_mb_emit_ldloc (mb, conv_arg);
6931 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6932 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6934 label_end = mono_mb_emit_branch (mb, CEE_BR);
6935 mono_mb_patch_branch (mb, label_false);
6936 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6937 mono_mb_patch_branch (mb, label_end);
6939 mono_mb_emit_byte (mb, CEE_STIND_I1);
6943 case MARSHAL_ACTION_PUSH:
6945 mono_mb_emit_ldloc_addr (mb, conv_arg);
6947 mono_mb_emit_ldloc (mb, conv_arg);
6949 mono_mb_emit_ldarg (mb, argnum);
6952 case MARSHAL_ACTION_CONV_RESULT:
6953 /* maybe we need to make sure that it fits within 8 bits */
6954 mono_mb_emit_stloc (mb, 3);
6957 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6958 MonoClass* conv_arg_class = mono_defaults.int32_class;
6959 guint8 ldop = CEE_LDIND_I4;
6960 int label_null, label_false;
6962 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6963 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6966 *conv_arg_type = &conv_arg_class->this_arg;
6968 *conv_arg_type = &conv_arg_class->byval_arg;
6971 mono_mb_emit_ldarg (mb, argnum);
6975 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6976 mono_mb_emit_ldarg (mb, argnum);
6977 mono_mb_emit_byte (mb, ldop);
6981 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6982 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6983 mono_mb_emit_stloc (mb, conv_arg);
6984 mono_mb_patch_branch (mb, label_false);
6987 mono_mb_patch_branch (mb, label_null);
6991 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6992 guint8 stop = CEE_STIND_I4;
6993 guint8 ldc_op = CEE_LDC_I4_1;
6994 int label_null,label_false, label_end;;
6999 switch (spec->native) {
7000 case MONO_NATIVE_I1:
7001 case MONO_NATIVE_U1:
7002 stop = CEE_STIND_I1;
7004 case MONO_NATIVE_VARIANTBOOL:
7005 stop = CEE_STIND_I2;
7006 ldc_op = CEE_LDC_I4_M1;
7014 mono_mb_emit_ldarg (mb, argnum);
7015 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7017 mono_mb_emit_ldarg (mb, argnum);
7018 mono_mb_emit_ldloc (mb, conv_arg);
7020 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7021 mono_mb_emit_byte (mb, ldc_op);
7022 label_end = mono_mb_emit_branch (mb, CEE_BR);
7024 mono_mb_patch_branch (mb, label_false);
7025 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7026 mono_mb_patch_branch (mb, label_end);
7028 mono_mb_emit_byte (mb, stop);
7029 mono_mb_patch_branch (mb, label_null);
7034 g_assert_not_reached ();
7041 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7042 MonoMarshalSpec *spec, int conv_arg,
7043 MonoType **conv_arg_type, MarshalAction action)
7046 MonoMethodBuilder *mb = m->mb;
7049 case MARSHAL_ACTION_CONV_IN:
7050 /* MS seems to allow this in some cases, ie. bxc #158 */
7052 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7053 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7054 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7059 case MARSHAL_ACTION_PUSH:
7060 mono_mb_emit_ldarg (mb, argnum);
7063 case MARSHAL_ACTION_CONV_RESULT:
7064 /* no conversions necessary */
7065 mono_mb_emit_stloc (mb, 3);
7076 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7077 MonoMarshalSpec *spec, int conv_arg,
7078 MonoType **conv_arg_type, MarshalAction action)
7081 MonoMethodBuilder *mb = m->mb;
7084 case MARSHAL_ACTION_PUSH:
7085 /* fixme: dont know how to marshal that. We cant simply
7086 * convert it to a one byte UTF8 character, because an
7087 * unicode character may need more that one byte in UTF8 */
7088 mono_mb_emit_ldarg (mb, argnum);
7091 case MARSHAL_ACTION_CONV_RESULT:
7092 /* fixme: we need conversions here */
7093 mono_mb_emit_stloc (mb, 3);
7104 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7105 MonoMarshalSpec *spec, int conv_arg,
7106 MonoType **conv_arg_type, MarshalAction action)
7109 MonoMethodBuilder *mb = m->mb;
7112 case MARSHAL_ACTION_PUSH:
7113 mono_mb_emit_ldarg (mb, argnum);
7116 case MARSHAL_ACTION_CONV_RESULT:
7117 /* no conversions necessary */
7118 mono_mb_emit_stloc (mb, 3);
7129 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7130 MonoMarshalSpec *spec, int conv_arg,
7131 MonoType **conv_arg_type, MarshalAction action)
7133 /* Ensure that we have marshalling info for this param */
7134 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7136 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7137 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7139 if (spec && spec->native == MONO_NATIVE_ASANY)
7140 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7143 case MONO_TYPE_VALUETYPE:
7144 if (t->data.klass == mono_defaults.handleref_class)
7145 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7147 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7148 case MONO_TYPE_STRING:
7149 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7150 case MONO_TYPE_CLASS:
7151 case MONO_TYPE_OBJECT:
7153 if (spec && spec->native == MONO_NATIVE_STRUCT)
7154 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7156 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7157 spec->native == MONO_NATIVE_IDISPATCH ||
7158 spec->native == MONO_NATIVE_INTERFACE))
7159 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7160 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7161 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7162 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7163 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7166 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7167 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7168 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7170 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7171 case MONO_TYPE_ARRAY:
7172 case MONO_TYPE_SZARRAY:
7173 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7174 case MONO_TYPE_BOOLEAN:
7175 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7177 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7178 case MONO_TYPE_CHAR:
7179 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7192 case MONO_TYPE_FNPTR:
7193 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7194 case MONO_TYPE_GENERICINST:
7195 if (mono_type_generic_inst_is_valuetype (t))
7196 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7206 * mono_marshal_emit_native_wrapper:
7207 * @image: the image to use for looking up custom marshallers
7208 * @sig: The signature of the native function
7209 * @piinfo: Marshalling information
7210 * @mspecs: Marshalling information
7211 * @aot: whenever the created method will be compiled by the AOT compiler
7212 * @method: if non-NULL, the pinvoke method to call
7213 * @check_exceptions: Whenever to check for pending exceptions after the native call
7214 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7216 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7219 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)
7221 EmitMarshalContext m;
7222 MonoMethodSignature *csig;
7224 MonoExceptionClause *clause;
7225 int i, argnum, *tmp_locals;
7226 int type, param_shift = 0;
7227 static MonoMethodSignature *get_last_error_sig = NULL;
7228 int coop_gc_stack_dummy, coop_gc_var;
7231 memset (&m, 0, sizeof (m));
7236 /* we copy the signature, so that we can set pinvoke to 0 */
7238 /* The function address is passed as the first argument */
7239 g_assert (!sig->hasthis);
7242 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7250 /* we allocate local for use with emit_struct_conv() */
7251 /* allocate local 0 (pointer) src_ptr */
7252 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7253 /* allocate local 1 (pointer) dst_ptr */
7254 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7255 /* allocate local 2 (boolean) delete_old */
7256 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7258 /* delete_old = FALSE */
7259 mono_mb_emit_icon (mb, 0);
7260 mono_mb_emit_stloc (mb, 2);
7262 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7263 /* allocate local 3 to store the return value */
7264 mono_mb_add_local (mb, sig->ret);
7267 if (mono_threads_is_coop_enabled ()) {
7268 /* local 4, dummy local used to get a stack address for suspend funcs */
7269 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7270 /* local 5, the local to be used when calling the suspend funcs */
7271 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7273 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7274 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7277 if (MONO_TYPE_ISSTRUCT (sig->ret))
7278 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7280 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7281 /* Return type custom marshaling */
7283 * Since we can't determine the return type of the unmanaged function,
7284 * we assume it returns a pointer, and pass that pointer to
7285 * MarshalNativeToManaged.
7287 csig->ret = &mono_defaults.int_class->byval_arg;
7290 /* we first do all conversions */
7291 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7292 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7294 for (i = 0; i < sig->param_count; i ++) {
7295 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7298 if (mono_threads_is_coop_enabled ()) {
7299 clause->try_offset = mono_mb_get_label (mb);
7301 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7302 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7303 mono_mb_emit_stloc (mb, coop_gc_var);
7306 /* push all arguments */
7309 mono_mb_emit_byte (mb, CEE_LDARG_0);
7311 for (i = 0; i < sig->param_count; i++) {
7312 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7315 /* call the native method */
7317 mono_mb_emit_byte (mb, CEE_LDARG_0);
7318 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7319 mono_mb_emit_byte (mb, CEE_LDIND_I);
7320 mono_mb_emit_calli (mb, csig);
7321 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7323 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7325 g_assert_not_reached ();
7330 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7331 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7332 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7333 mono_mb_emit_calli (mb, csig);
7335 mono_mb_emit_native_call (mb, csig, func);
7339 /* Set LastError if needed */
7340 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7341 if (!get_last_error_sig) {
7342 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7343 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7344 get_last_error_sig->pinvoke = 1;
7349 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7350 * clobber its value.
7352 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7353 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7355 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7359 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7360 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7361 mono_class_init (klass);
7362 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7363 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7364 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7365 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7366 mono_mb_emit_stloc (mb, m.vtaddr_var);
7370 if (mono_threads_is_coop_enabled ()) {
7371 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7373 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7374 clause->handler_offset = mono_mb_get_label (mb);
7376 mono_mb_emit_ldloc (mb, coop_gc_var);
7377 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7378 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7380 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7382 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7384 mono_mb_patch_branch (mb, leave_pos);
7387 /* convert the result */
7388 if (!sig->ret->byref) {
7389 MonoMarshalSpec *spec = mspecs [0];
7390 type = sig->ret->type;
7392 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7393 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7397 case MONO_TYPE_VOID:
7399 case MONO_TYPE_VALUETYPE:
7400 klass = sig->ret->data.klass;
7401 if (klass->enumtype) {
7402 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7405 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7419 case MONO_TYPE_FNPTR:
7420 case MONO_TYPE_STRING:
7421 case MONO_TYPE_CLASS:
7422 case MONO_TYPE_OBJECT:
7423 case MONO_TYPE_BOOLEAN:
7424 case MONO_TYPE_ARRAY:
7425 case MONO_TYPE_SZARRAY:
7426 case MONO_TYPE_CHAR:
7428 case MONO_TYPE_GENERICINST:
7429 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7431 case MONO_TYPE_TYPEDBYREF:
7433 g_warning ("return type 0x%02x unknown", sig->ret->type);
7434 g_assert_not_reached ();
7438 mono_mb_emit_stloc (mb, 3);
7442 * Need to call this after converting the result since MONO_VTADDR needs
7443 * to be adjacent to the call instruction.
7445 if (check_exceptions)
7446 emit_thread_interrupt_checkpoint (mb);
7448 /* we need to convert byref arguments back and free string arrays */
7449 for (i = 0; i < sig->param_count; i++) {
7450 MonoType *t = sig->params [i];
7451 MonoMarshalSpec *spec = mspecs [i + 1];
7453 argnum = i + param_shift;
7455 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7456 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7461 case MONO_TYPE_STRING:
7462 case MONO_TYPE_VALUETYPE:
7463 case MONO_TYPE_CLASS:
7464 case MONO_TYPE_OBJECT:
7465 case MONO_TYPE_SZARRAY:
7466 case MONO_TYPE_BOOLEAN:
7467 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7474 if (!MONO_TYPE_IS_VOID(sig->ret))
7475 mono_mb_emit_ldloc (mb, 3);
7477 mono_mb_emit_byte (mb, CEE_RET);
7479 if (mono_threads_is_coop_enabled ()) {
7480 mono_mb_set_clauses (mb, 1, clause);
7483 #endif /* DISABLE_JIT */
7486 * mono_marshal_get_native_wrapper:
7487 * @method: The MonoMethod to wrap.
7488 * @check_exceptions: Whenever to check for pending exceptions
7490 * generates IL code for the pinvoke wrapper (the generated method
7491 * calls the unmanaged code in piinfo->addr)
7492 * The wrapper info for the wrapper is a WrapperInfo structure.
7495 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7497 MonoMethodSignature *sig, *csig;
7498 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7499 MonoMethodBuilder *mb;
7500 MonoMarshalSpec **mspecs;
7503 gboolean pinvoke = FALSE;
7506 const char *exc_class = "MissingMethodException";
7507 const char *exc_arg = NULL;
7510 g_assert (method != NULL);
7511 g_assert (mono_method_signature (method)->pinvoke);
7513 GHashTable **cache_ptr;
7516 if (check_exceptions)
7517 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7519 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7521 if (check_exceptions)
7522 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7524 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7527 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7529 if ((res = mono_marshal_find_in_cache (cache, method)))
7532 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7533 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7537 return mono_cominterop_get_native_wrapper (method);
7539 g_assert_not_reached ();
7543 sig = mono_method_signature (method);
7545 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7546 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7549 if (!piinfo->addr) {
7551 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7552 exc_arg = "Method contains unsupported native code";
7554 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7556 piinfo->addr = mono_lookup_internal_call (method);
7560 /* hack - redirect certain string constructors to CreateString */
7561 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7562 g_assert (!pinvoke);
7563 g_assert (method->string_ctor);
7564 g_assert (sig->hasthis);
7566 /* CreateString returns a value */
7567 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7568 csig->ret = &mono_defaults.string_class->byval_arg;
7572 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7573 if (!strcmp ("CreateString", res->name) &&
7574 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7577 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7578 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7580 /* create a wrapper to preserve .ctor in stack trace */
7581 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7584 mono_mb_emit_byte (mb, CEE_LDARG_0);
7585 for (i = 1; i <= csig->param_count; i++)
7586 mono_mb_emit_ldarg (mb, i);
7587 mono_mb_emit_managed_call (mb, res, NULL);
7588 mono_mb_emit_byte (mb, CEE_RET);
7591 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7592 info->d.string_ctor.method = method;
7594 /* use native_wrapper_cache because internal calls are looked up there */
7595 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7596 csig->param_count + 1, info, NULL);
7603 /* exception will be thrown */
7604 piinfo->addr = NULL;
7605 g_warning ("cannot find CreateString for .ctor");
7608 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7610 mb->method->save_lmf = 1;
7613 * In AOT mode and embedding scenarios, it is possible that the icall is not
7614 * registered in the runtime doing the AOT compilation.
7616 if (!piinfo->addr && !aot) {
7618 mono_mb_emit_exception (mb, exc_class, exc_arg);
7620 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7621 info->d.managed_to_native.method = method;
7623 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7625 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7626 csig->param_count + 16, info, NULL);
7632 /* internal calls: we simply push all arguments and call the method (no conversions) */
7633 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7635 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7637 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7639 /* hack - string constructors returns a value */
7640 if (method->string_ctor)
7641 csig->ret = &mono_defaults.string_class->byval_arg;
7648 * Add a null check since public icalls can be called with 'call' which
7649 * does no such check.
7651 mono_mb_emit_byte (mb, CEE_LDARG_0);
7652 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7653 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7654 mono_mb_patch_branch (mb, pos);
7656 mono_mb_emit_byte (mb, CEE_LDARG_0);
7659 for (i = 0; i < sig->param_count; i++)
7660 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7663 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7664 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7665 mono_mb_emit_calli (mb, csig);
7667 g_assert (piinfo->addr);
7668 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7670 if (check_exceptions)
7671 emit_thread_interrupt_checkpoint (mb);
7672 mono_mb_emit_byte (mb, CEE_RET);
7674 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7675 info->d.managed_to_native.method = method;
7677 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7679 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7688 g_assert (piinfo->addr);
7691 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7692 mono_method_get_marshal_info (method, mspecs);
7694 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7696 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7697 info->d.managed_to_native.method = method;
7699 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7701 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7706 for (i = sig->param_count; i >= 0; i--)
7708 mono_metadata_free_marshal_spec (mspecs [i]);
7712 /* mono_method_print_code (res); */
7718 * mono_marshal_get_native_func_wrapper:
7719 * @image: The image to use for memory allocation and for looking up custom marshallers.
7720 * @sig: The signature of the function
7721 * @func: The native function to wrap
7723 * Returns a wrapper method around native functions, similar to the pinvoke
7727 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7728 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7730 MonoMethodSignature *csig;
7732 SignaturePointerPair key, *new_key;
7733 MonoMethodBuilder *mb;
7742 // Generic types are not safe to place in MonoImage caches.
7743 g_assert (!sig->is_inflated);
7745 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7746 if ((res = mono_marshal_find_in_cache (cache, &key)))
7749 name = g_strdup_printf ("wrapper_native_%p", func);
7750 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7751 mb->method->save_lmf = 1;
7754 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7757 csig = mono_metadata_signature_dup_full (image, sig);
7760 new_key = g_new (SignaturePointerPair,1);
7761 new_key->sig = csig;
7762 new_key->pointer = func;
7764 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7770 mono_marshal_set_wrapper_info (res, NULL);
7776 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7780 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7782 MonoMethodSignature *sig, *csig;
7783 MonoMethodBuilder *mb;
7788 MonoMethodPInvoke mpiinfo;
7789 MonoMethodPInvoke *piinfo = &mpiinfo;
7790 MonoMarshalSpec **mspecs;
7791 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7792 MonoImage *image = invoke->klass->image;
7795 // FIXME: include UnmanagedFunctionPointerAttribute info
7798 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7800 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7802 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7805 memset (&mpiinfo, 0, sizeof (mpiinfo));
7806 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7808 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7809 mono_method_get_marshal_info (invoke, mspecs);
7810 /* Freed below so don't alloc from mempool */
7811 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7814 name = g_strdup_printf ("wrapper_aot_native");
7815 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7816 mb->method->save_lmf = 1;
7819 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7822 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7823 info->d.managed_to_native.method = invoke;
7825 g_assert (!sig->hasthis);
7826 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7828 res = mono_mb_create_and_cache_full (cache, invoke,
7829 mb, csig, csig->param_count + 16,
7833 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7835 mono_metadata_free_marshal_spec (mspecs [i]);
7843 * mono_marshal_emit_managed_wrapper:
7845 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7846 * the delegate which wraps the managed method to be called. For closed delegates,
7847 * it could have fewer parameters than the method it wraps.
7848 * THIS_LOC is the memory location where the target of the delegate is stored.
7851 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7854 MonoMethodSignature *sig, *csig;
7860 /* we first do all conversions */
7861 for (i = 0; i < sig->param_count; i ++) {
7862 MonoType *t = sig->params [i];
7865 case MONO_TYPE_OBJECT:
7866 case MONO_TYPE_CLASS:
7867 case MONO_TYPE_VALUETYPE:
7868 case MONO_TYPE_ARRAY:
7869 case MONO_TYPE_SZARRAY:
7870 case MONO_TYPE_STRING:
7871 case MONO_TYPE_BOOLEAN:
7872 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7876 if (!sig->ret->byref) {
7877 switch (sig->ret->type) {
7878 case MONO_TYPE_STRING:
7879 csig->ret = &mono_defaults.int_class->byval_arg;
7886 MonoMethodSignature *sig, *csig;
7887 MonoExceptionClause *clause;
7890 gboolean closed = FALSE;
7895 /* allocate local 0 (pointer) src_ptr */
7896 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7897 /* allocate local 1 (pointer) dst_ptr */
7898 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7899 /* allocate local 2 (boolean) delete_old */
7900 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7902 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7903 /* Closed delegate */
7904 g_assert (sig->param_count == invoke_sig->param_count + 1);
7906 /* Use a new signature without the first argument */
7907 sig = mono_metadata_signature_dup (sig);
7908 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7909 sig->param_count --;
7912 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7913 /* allocate local 3 to store the return value */
7914 mono_mb_add_local (mb, sig->ret);
7917 if (MONO_TYPE_ISSTRUCT (sig->ret))
7918 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7922 * mono_jit_attach ();
7926 * ret = method (...);
7928 * mono_jit_detach ();
7934 if (mono_threads_is_coop_enabled ()) {
7935 clause = g_new0 (MonoExceptionClause, 1);
7936 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7939 mono_mb_emit_icon (mb, 0);
7940 mono_mb_emit_stloc (mb, 2);
7942 if (mono_threads_is_coop_enabled ()) {
7944 clause->try_offset = mono_mb_get_label (mb);
7948 * Might need to attach the thread to the JIT or change the
7949 * domain for the callback.
7951 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7953 * mono_jit_attach ();
7955 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7956 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7958 /* <interrupt check> */
7959 emit_thread_interrupt_checkpoint (mb);
7961 /* we first do all conversions */
7962 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7963 for (i = 0; i < sig->param_count; i ++) {
7964 MonoType *t = sig->params [i];
7967 case MONO_TYPE_OBJECT:
7968 case MONO_TYPE_CLASS:
7969 case MONO_TYPE_VALUETYPE:
7970 case MONO_TYPE_ARRAY:
7971 case MONO_TYPE_SZARRAY:
7972 case MONO_TYPE_STRING:
7973 case MONO_TYPE_BOOLEAN:
7974 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7984 if (target_handle) {
7985 mono_mb_emit_icon (mb, (gint32)target_handle);
7986 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7989 g_assert_not_reached ();
7991 } else if (closed) {
7992 mono_mb_emit_icon (mb, (gint32)target_handle);
7993 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7996 for (i = 0; i < sig->param_count; i++) {
7997 MonoType *t = sig->params [i];
7999 if (tmp_locals [i]) {
8001 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8003 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8006 mono_mb_emit_ldarg (mb, i);
8009 /* ret = method (...) */
8010 mono_mb_emit_managed_call (mb, method, NULL);
8012 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8013 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8014 mono_class_init (klass);
8015 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8016 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8018 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8019 mono_mb_emit_stloc (mb, m->vtaddr_var);
8023 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8024 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8025 } else if (!sig->ret->byref) {
8026 switch (sig->ret->type) {
8027 case MONO_TYPE_VOID:
8029 case MONO_TYPE_BOOLEAN:
8032 case MONO_TYPE_CHAR:
8044 case MONO_TYPE_OBJECT:
8045 mono_mb_emit_stloc (mb, 3);
8047 case MONO_TYPE_STRING:
8048 csig->ret = &mono_defaults.int_class->byval_arg;
8049 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8051 case MONO_TYPE_VALUETYPE:
8052 case MONO_TYPE_CLASS:
8053 case MONO_TYPE_SZARRAY:
8054 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8057 g_warning ("return type 0x%02x unknown", sig->ret->type);
8058 g_assert_not_reached ();
8061 mono_mb_emit_stloc (mb, 3);
8064 /* Convert byref arguments back */
8065 for (i = 0; i < sig->param_count; i ++) {
8066 MonoType *t = sig->params [i];
8067 MonoMarshalSpec *spec = mspecs [i + 1];
8069 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8070 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8072 else if (t->byref) {
8074 case MONO_TYPE_CLASS:
8075 case MONO_TYPE_VALUETYPE:
8076 case MONO_TYPE_OBJECT:
8077 case MONO_TYPE_STRING:
8078 case MONO_TYPE_BOOLEAN:
8079 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8085 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8086 /* The [Out] information is encoded in the delegate signature */
8088 case MONO_TYPE_SZARRAY:
8089 case MONO_TYPE_CLASS:
8090 case MONO_TYPE_VALUETYPE:
8091 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8094 g_assert_not_reached ();
8099 if (mono_threads_is_coop_enabled ()) {
8100 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8103 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8104 clause->handler_offset = mono_mb_get_label (mb);
8108 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8110 * mono_jit_detach ();
8112 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8113 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8115 if (mono_threads_is_coop_enabled ()) {
8116 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8118 /* } [endfinally] */
8119 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8121 mono_mb_patch_branch (mb, leave_pos);
8125 if (m->retobj_var) {
8126 mono_mb_emit_ldloc (mb, m->retobj_var);
8127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8128 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8131 if (!MONO_TYPE_IS_VOID(sig->ret))
8132 mono_mb_emit_ldloc (mb, 3);
8133 mono_mb_emit_byte (mb, CEE_RET);
8136 if (mono_threads_is_coop_enabled ()) {
8137 mono_mb_set_clauses (mb, 1, clause);
8146 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8148 MonoMethodSignature *sig;
8153 * Under windows, delegates passed to native code must use the STDCALL
8154 * calling convention.
8156 csig->call_convention = MONO_CALL_STDCALL;
8159 sig = mono_method_signature (method);
8161 /* Change default calling convention if needed */
8162 /* Why is this a modopt ? */
8163 if (sig->ret && sig->ret->num_mods) {
8164 for (i = 0; i < sig->ret->num_mods; ++i) {
8166 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8167 g_assert (mono_error_ok (&error));
8168 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8169 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8170 csig->call_convention = MONO_CALL_C;
8171 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8172 csig->call_convention = MONO_CALL_STDCALL;
8173 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8174 csig->call_convention = MONO_CALL_FASTCALL;
8175 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8176 csig->call_convention = MONO_CALL_THISCALL;
8183 * generates IL code to call managed methods from unmanaged code
8184 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8187 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8190 MonoMethodSignature *sig, *csig, *invoke_sig;
8191 MonoMethodBuilder *mb;
8192 MonoMethod *res, *invoke;
8193 MonoMarshalSpec **mspecs;
8194 MonoMethodPInvoke piinfo;
8197 EmitMarshalContext m;
8199 g_assert (method != NULL);
8200 g_assert (!mono_method_signature (method)->pinvoke);
8203 * FIXME: Should cache the method+delegate type pair, since the same method
8204 * could be called with different delegates, thus different marshalling
8207 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8209 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8212 invoke = mono_get_delegate_invoke (delegate_klass);
8213 invoke_sig = mono_method_signature (invoke);
8215 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8216 mono_method_get_marshal_info (invoke, mspecs);
8218 sig = mono_method_signature (method);
8220 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8222 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8223 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8225 /* we copy the signature, so that we can modify it */
8227 /* Need to free this later */
8228 csig = mono_metadata_signature_dup (invoke_sig);
8230 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8234 memset (&m, 0, sizeof (m));
8240 m.image = method->klass->image;
8242 mono_marshal_set_callconv_from_modopt (invoke, csig);
8244 /* The attribute is only available in Net 2.0 */
8245 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8246 MonoCustomAttrInfo *cinfo;
8247 MonoCustomAttrEntry *attr;
8250 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8251 * contents of the attribute without constructing it, as that might not be
8252 * possible when running in cross-compiling mode.
8254 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8255 mono_error_assert_ok (&error);
8258 for (i = 0; i < cinfo->num_attrs; ++i) {
8259 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8260 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8261 attr = &cinfo->attrs [i];
8267 MonoArray *typed_args, *named_args;
8268 CattrNamedArg *arginfo;
8272 MonoBoolean set_last_error = 0;
8275 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8276 g_assert (mono_error_ok (&error));
8277 g_assert (mono_array_length (typed_args) == 1);
8280 o = mono_array_get (typed_args, MonoObject*, 0);
8281 call_conv = *(gint32*)mono_object_unbox (o);
8284 for (i = 0; i < mono_array_length (named_args); ++i) {
8285 CattrNamedArg *narg = &arginfo [i];
8287 o = mono_array_get (named_args, MonoObject*, i);
8289 g_assert (narg->field);
8290 if (!strcmp (narg->field->name, "CharSet")) {
8291 charset = *(gint32*)mono_object_unbox (o);
8292 } else if (!strcmp (narg->field->name, "SetLastError")) {
8293 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8294 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8295 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8296 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8297 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8299 g_assert_not_reached ();
8305 memset (&piinfo, 0, sizeof (piinfo));
8307 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8309 csig->call_convention = call_conv - 1;
8312 if (cinfo && !cinfo->cached)
8313 mono_custom_attrs_free (cinfo);
8316 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8318 if (!target_handle) {
8321 // FIXME: Associate it with the method+delegate_klass pair
8322 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8323 info->d.native_to_managed.method = method;
8324 info->d.native_to_managed.klass = delegate_klass;
8326 res = mono_mb_create_and_cache_full (cache, method,
8327 mb, csig, sig->param_count + 16,
8333 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8337 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8339 mono_metadata_free_marshal_spec (mspecs [i]);
8342 /* mono_method_print_code (res); */
8348 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8352 MonoMethodSignature *sig;
8353 MonoMethodBuilder *mb;
8358 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8360 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8363 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8364 MonoMethodSignature *csig;
8365 MonoMarshalSpec **mspecs;
8366 EmitMarshalContext m;
8368 sig = mono_method_signature (method);
8369 g_assert (!sig->hasthis);
8371 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8372 mono_method_get_marshal_info (method, mspecs);
8374 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8375 csig = mono_metadata_signature_dup_full (image, sig);
8379 memset (&m, 0, sizeof (m));
8387 mono_marshal_set_callconv_from_modopt (method, csig);
8389 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8391 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8396 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8399 for (i = sig->param_count; i >= 0; i--)
8401 mono_metadata_free_marshal_spec (mspecs [i]);
8404 return mono_compile_method (method);
8407 sig = mono_method_signature (method);
8408 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8410 param_count = sig->param_count + sig->hasthis;
8412 for (i = 0; i < param_count; i++)
8413 mono_mb_emit_ldarg (mb, i);
8415 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8416 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8418 mono_mb_emit_op (mb, CEE_CALL, method);
8419 mono_mb_emit_byte (mb, CEE_RET);
8424 method = mono_mb_create (mb, sig, param_count, NULL);
8427 return mono_compile_method (method);
8433 * The code directly following this is the cache hit, value positive branch
8435 * This function takes a new method builder with 0 locals and adds two locals
8436 * to create multiple out-branches and the fall through state of having the object
8437 * on the stack after a cache miss
8440 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8441 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8442 MonoMethodBuilder *mb)
8446 /* allocate local 0 (pointer) obj_vtable */
8447 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8448 /* allocate local 1 (pointer) cached_vtable */
8449 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8452 mono_mb_emit_ldarg (mb, obj_arg_position);
8453 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8455 /*obj_vtable = obj->vtable;*/
8456 mono_mb_emit_ldarg (mb, obj_arg_position);
8457 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8458 mono_mb_emit_byte (mb, CEE_LDIND_I);
8459 mono_mb_emit_stloc (mb, 0);
8461 /* cached_vtable = *cache*/
8462 mono_mb_emit_ldarg (mb, cache_arg_position);
8463 mono_mb_emit_byte (mb, CEE_LDIND_I);
8464 mono_mb_emit_stloc (mb, 1);
8466 mono_mb_emit_ldloc (mb, 1);
8467 mono_mb_emit_byte (mb, CEE_LDC_I4);
8468 mono_mb_emit_i4 (mb, ~0x1);
8469 mono_mb_emit_byte (mb, CEE_CONV_I);
8470 mono_mb_emit_byte (mb, CEE_AND);
8471 mono_mb_emit_ldloc (mb, 0);
8472 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8473 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8475 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8476 mono_mb_emit_ldloc (mb, 1);
8477 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8478 mono_mb_emit_byte (mb, CEE_CONV_U);
8479 mono_mb_emit_byte (mb, CEE_AND);
8480 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8481 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8484 mono_mb_patch_branch (mb, cache_miss_pos);
8487 mono_mb_emit_ldarg (mb, obj_arg_position);
8488 mono_mb_emit_ldarg (mb, class_arg_position);
8489 mono_mb_emit_ldarg (mb, cache_arg_position);
8490 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8493 #endif /* DISABLE_JIT */
8496 * This does the equivalent of mono_object_castclass_with_cache.
8497 * The wrapper info for the wrapper is a WrapperInfo structure.
8500 mono_marshal_get_castclass_with_cache (void)
8502 static MonoMethod *cached;
8504 MonoMethodBuilder *mb;
8505 MonoMethodSignature *sig;
8506 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8509 const int obj_arg_position = 0;
8510 const int class_arg_position = 1;
8511 const int cache_arg_position = 2;
8516 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8517 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8518 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8519 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8520 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8521 sig->ret = &mono_defaults.object_class->byval_arg;
8525 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8526 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8527 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8530 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8531 mono_mb_emit_ldarg (mb, obj_arg_position);
8532 mono_mb_emit_byte (mb, CEE_RET);
8535 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8536 mono_mb_patch_branch (mb, invalid_cast_pos);
8537 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8540 mono_mb_patch_branch (mb, return_null_pos);
8541 mono_mb_emit_byte (mb, CEE_LDNULL);
8542 mono_mb_emit_byte (mb, CEE_RET);
8543 #endif /* DISABLE_JIT */
8545 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8546 res = mono_mb_create (mb, sig, 8, info);
8549 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8550 mono_free_method (res);
8551 mono_metadata_free_method_signature (sig);
8559 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8561 MonoObject *isinst = mono_object_isinst (obj, klass);
8563 #ifndef DISABLE_REMOTING
8564 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8568 uintptr_t cache_update = (uintptr_t)obj->vtable;
8570 cache_update = cache_update | 0x1;
8572 *cache = cache_update;
8578 * This does the equivalent of mono_object_isinst_with_cache.
8579 * The wrapper info for the wrapper is a WrapperInfo structure.
8582 mono_marshal_get_isinst_with_cache (void)
8584 static MonoMethod *cached;
8586 MonoMethodBuilder *mb;
8587 MonoMethodSignature *sig;
8588 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8591 const int obj_arg_position = 0;
8592 const int class_arg_position = 1;
8593 const int cache_arg_position = 2;
8598 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8599 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8601 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8603 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8605 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8606 sig->ret = &mono_defaults.object_class->byval_arg;
8610 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8611 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8612 // Return the object gotten via the slow path.
8613 mono_mb_emit_byte (mb, CEE_RET);
8616 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8617 mono_mb_patch_branch (mb, return_null_pos);
8618 mono_mb_emit_byte (mb, CEE_LDNULL);
8619 mono_mb_emit_byte (mb, CEE_RET);
8622 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8623 mono_mb_emit_ldarg (mb, 0);
8624 mono_mb_emit_byte (mb, CEE_RET);
8627 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8628 res = mono_mb_create (mb, sig, 8, info);
8631 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8632 mono_free_method (res);
8633 mono_metadata_free_method_signature (sig);
8641 * mono_marshal_get_isinst:
8642 * @klass: the type of the field
8644 * This method generates a function which can be used to check if an object is
8645 * an instance of the given type, icluding the case where the object is a proxy.
8646 * The generated function has the following signature:
8647 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8650 mono_marshal_get_isinst (MonoClass *klass)
8652 static MonoMethodSignature *isint_sig = NULL;
8656 int pos_was_ok, pos_end;
8657 #ifndef DISABLE_REMOTING
8658 int pos_end2, pos_failed;
8661 MonoMethodBuilder *mb;
8663 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8664 if ((res = mono_marshal_find_in_cache (cache, klass)))
8668 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8669 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8670 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8671 isint_sig->pinvoke = 0;
8674 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8675 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8678 mb->method->save_lmf = 1;
8681 /* check if the object is a proxy that needs special cast */
8682 mono_mb_emit_ldarg (mb, 0);
8683 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8684 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8686 /* The result of MONO_CISINST can be:
8687 0) the type check succeeded
8688 1) the type check did not succeed
8689 2) a CanCastTo call is needed */
8690 #ifndef DISABLE_REMOTING
8691 mono_mb_emit_byte (mb, CEE_DUP);
8692 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8694 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8695 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8697 /* get the real proxy from the transparent proxy*/
8699 mono_mb_emit_ldarg (mb, 0);
8700 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8701 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8705 mono_mb_patch_branch (mb, pos_failed);
8706 mono_mb_emit_byte (mb, CEE_LDNULL);
8707 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8711 mono_mb_patch_branch (mb, pos_was_ok);
8712 mono_mb_emit_byte (mb, CEE_POP);
8713 mono_mb_emit_ldarg (mb, 0);
8717 mono_mb_patch_branch (mb, pos_end);
8718 mono_mb_patch_branch (mb, pos_end2);
8719 mono_mb_emit_byte (mb, CEE_RET);
8721 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8725 mono_mb_emit_byte (mb, CEE_LDNULL);
8726 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8730 mono_mb_patch_branch (mb, pos_was_ok);
8731 mono_mb_emit_ldarg (mb, 0);
8735 mono_mb_patch_branch (mb, pos_end);
8736 mono_mb_emit_byte (mb, CEE_RET);
8737 #endif /* DISABLE_REMOTING */
8738 #endif /* DISABLE_JIT */
8740 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8741 info->d.proxy.klass = klass;
8742 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8749 * mono_marshal_get_castclass:
8750 * @klass: the type of the field
8752 * This method generates a function which can be used to cast an object to
8753 * an instance of the given type, icluding the case where the object is a proxy.
8754 * The generated function has the following signature:
8755 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8756 * The wrapper info for the wrapper is a WrapperInfo structure.
8759 mono_marshal_get_castclass (MonoClass *klass)
8761 static MonoMethodSignature *castclass_sig = NULL;
8764 #ifndef DISABLE_REMOTING
8765 int pos_was_ok, pos_was_ok2;
8768 MonoMethodBuilder *mb;
8771 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8772 if ((res = mono_marshal_find_in_cache (cache, klass)))
8775 if (!castclass_sig) {
8776 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8777 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8778 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8779 castclass_sig->pinvoke = 0;
8782 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8783 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8786 mb->method->save_lmf = 1;
8789 /* check if the object is a proxy that needs special cast */
8790 mono_mb_emit_ldarg (mb, 0);
8791 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8792 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8794 /* The result of MONO_CCASTCLASS can be:
8795 0) the cast is valid
8796 1) cast of unknown proxy type
8797 or an exception if the cast is is invalid
8799 #ifndef DISABLE_REMOTING
8800 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8802 /* get the real proxy from the transparent proxy*/
8804 mono_mb_emit_ldarg (mb, 0);
8805 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8806 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8809 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8812 mono_mb_patch_branch (mb, pos_was_ok);
8813 mono_mb_patch_branch (mb, pos_was_ok2);
8815 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8816 mono_mb_emit_byte (mb, CEE_POP);
8817 #endif /* DISABLE_REMOTING */
8819 mono_mb_emit_ldarg (mb, 0);
8822 mono_mb_emit_byte (mb, CEE_RET);
8823 #endif /* DISABLE_JIT */
8825 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8827 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8835 * mono_marshal_get_struct_to_ptr:
8838 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8839 * The wrapper info for the wrapper is a WrapperInfo structure.
8842 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8844 MonoMethodBuilder *mb;
8845 static MonoMethod *stoptr = NULL;
8849 g_assert (klass != NULL);
8851 mono_marshal_load_type_info (klass);
8853 if (klass->marshal_info->str_to_ptr)
8854 return klass->marshal_info->str_to_ptr;
8857 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8860 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8863 if (klass->blittable) {
8864 mono_mb_emit_byte (mb, CEE_LDARG_1);
8865 mono_mb_emit_byte (mb, CEE_LDARG_0);
8866 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8867 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8868 mono_mb_emit_byte (mb, CEE_PREFIX1);
8869 mono_mb_emit_byte (mb, CEE_CPBLK);
8872 /* allocate local 0 (pointer) src_ptr */
8873 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8874 /* allocate local 1 (pointer) dst_ptr */
8875 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8876 /* allocate local 2 (boolean) delete_old */
8877 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8878 mono_mb_emit_byte (mb, CEE_LDARG_2);
8879 mono_mb_emit_stloc (mb, 2);
8881 /* initialize src_ptr to point to the start of object data */
8882 mono_mb_emit_byte (mb, CEE_LDARG_0);
8883 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8884 mono_mb_emit_stloc (mb, 0);
8886 /* initialize dst_ptr */
8887 mono_mb_emit_byte (mb, CEE_LDARG_1);
8888 mono_mb_emit_stloc (mb, 1);
8890 emit_struct_conv (mb, klass, FALSE);
8893 mono_mb_emit_byte (mb, CEE_RET);
8895 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8896 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8899 mono_marshal_lock ();
8900 if (!klass->marshal_info->str_to_ptr)
8901 klass->marshal_info->str_to_ptr = res;
8903 res = klass->marshal_info->str_to_ptr;
8904 mono_marshal_unlock ();
8909 * mono_marshal_get_ptr_to_struct:
8912 * generates IL code for PtrToStructure (IntPtr src, object structure)
8913 * The wrapper info for the wrapper is a WrapperInfo structure.
8916 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8918 MonoMethodBuilder *mb;
8919 static MonoMethodSignature *ptostr = NULL;
8923 g_assert (klass != NULL);
8925 mono_marshal_load_type_info (klass);
8927 if (klass->marshal_info->ptr_to_str)
8928 return klass->marshal_info->ptr_to_str;
8931 MonoMethodSignature *sig;
8933 /* Create the signature corresponding to
8934 static void PtrToStructure (IntPtr ptr, object structure);
8935 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8936 sig = mono_create_icall_signature ("void ptr object");
8937 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8939 mono_memory_barrier ();
8943 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8946 if (klass->blittable) {
8947 mono_mb_emit_byte (mb, CEE_LDARG_1);
8948 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8949 mono_mb_emit_byte (mb, CEE_LDARG_0);
8950 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8951 mono_mb_emit_byte (mb, CEE_PREFIX1);
8952 mono_mb_emit_byte (mb, CEE_CPBLK);
8955 /* allocate local 0 (pointer) src_ptr */
8956 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8957 /* allocate local 1 (pointer) dst_ptr */
8958 mono_mb_add_local (mb, &klass->this_arg);
8960 /* initialize src_ptr to point to the start of object data */
8961 mono_mb_emit_byte (mb, CEE_LDARG_0);
8962 mono_mb_emit_stloc (mb, 0);
8964 /* initialize dst_ptr */
8965 mono_mb_emit_byte (mb, CEE_LDARG_1);
8966 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8967 mono_mb_emit_stloc (mb, 1);
8969 emit_struct_conv (mb, klass, TRUE);
8972 mono_mb_emit_byte (mb, CEE_RET);
8974 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8975 res = mono_mb_create (mb, ptostr, 0, info);
8978 mono_marshal_lock ();
8979 if (!klass->marshal_info->ptr_to_str)
8980 klass->marshal_info->ptr_to_str = res;
8982 res = klass->marshal_info->ptr_to_str;
8983 mono_marshal_unlock ();
8988 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8989 * This is used to avoid infinite recursion since it is hard to determine where to
8990 * replace a method with its synchronized wrapper, and where not.
8991 * The runtime should execute METHOD instead of the wrapper.
8992 * The wrapper info for the wrapper is a WrapperInfo structure.
8995 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8997 MonoMethodBuilder *mb;
8999 MonoMethodSignature *sig;
9001 MonoGenericContext *ctx = NULL;
9002 MonoGenericContainer *container = NULL;
9004 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9005 ctx = &((MonoMethodInflated*)method)->context;
9006 method = ((MonoMethodInflated*)method)->declaring;
9007 container = mono_method_get_generic_container (method);
9009 container = method->klass->generic_container;
9010 g_assert (container);
9013 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9015 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9016 mono_mb_emit_byte (mb, CEE_RET);
9018 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9020 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9021 info->d.synchronized_inner.method = method;
9022 res = mono_mb_create (mb, sig, 0, info);
9026 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9027 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9033 * generates IL code for the synchronized wrapper: the generated method
9034 * calls METHOD while locking 'this' or the parent type.
9037 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9039 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9040 MonoMethodSignature *sig;
9041 MonoExceptionClause *clause;
9042 MonoMethodBuilder *mb;
9046 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9047 MonoGenericContext *ctx = NULL;
9048 MonoMethod *orig_method = NULL;
9049 MonoGenericContainer *container = NULL;
9053 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9056 /* FIXME: Support generic methods too */
9057 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9058 orig_method = method;
9059 ctx = &((MonoMethodInflated*)method)->context;
9060 method = ((MonoMethodInflated*)method)->declaring;
9061 container = mono_method_get_generic_container (method);
9063 container = method->klass->generic_container;
9064 g_assert (container);
9071 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9072 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9076 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9077 if ((res = mono_marshal_find_in_cache (cache, method)))
9081 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9084 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9086 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9087 info->d.synchronized.method = method;
9090 mb->skip_visibility = 1;
9092 if (!MONO_TYPE_IS_VOID (sig->ret))
9093 ret_local = mono_mb_add_local (mb, sig->ret);
9096 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9097 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9099 /* This will throw the type load exception when the wrapper is compiled */
9100 mono_mb_emit_byte (mb, CEE_LDNULL);
9101 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9102 mono_mb_emit_byte (mb, CEE_POP);
9104 if (!MONO_TYPE_IS_VOID (sig->ret))
9105 mono_mb_emit_ldloc (mb, ret_local);
9106 mono_mb_emit_byte (mb, CEE_RET);
9109 res = mono_mb_create_and_cache_full (cache, method,
9110 mb, sig, sig->param_count + 16, info, NULL);
9118 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9119 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9121 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9122 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9125 mono_marshal_lock ();
9127 if (!enter_method) {
9128 MonoMethodDesc *desc;
9130 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9131 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9132 g_assert (enter_method);
9133 mono_method_desc_free (desc);
9135 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9136 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9137 g_assert (exit_method);
9138 mono_method_desc_free (desc);
9140 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9141 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9142 g_assert (gettypefromhandle_method);
9143 mono_method_desc_free (desc);
9146 mono_marshal_unlock ();
9149 /* Push this or the type object */
9150 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9151 /* We have special handling for this in the JIT */
9152 int index = mono_mb_add_data (mb, method->klass);
9153 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9154 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9155 mono_mb_emit_i4 (mb, index);
9157 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9160 mono_mb_emit_ldarg (mb, 0);
9161 mono_mb_emit_stloc (mb, this_local);
9163 /* Call Monitor::Enter() */
9164 mono_mb_emit_ldloc (mb, this_local);
9165 mono_mb_emit_ldloc_addr (mb, taken_local);
9166 mono_mb_emit_managed_call (mb, enter_method, NULL);
9168 clause->try_offset = mono_mb_get_label (mb);
9170 /* Call the method */
9172 mono_mb_emit_ldarg (mb, 0);
9173 for (i = 0; i < sig->param_count; i++)
9174 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9178 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9179 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9181 mono_mb_emit_managed_call (mb, method, NULL);
9184 if (!MONO_TYPE_IS_VOID (sig->ret))
9185 mono_mb_emit_stloc (mb, ret_local);
9187 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9189 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9190 clause->handler_offset = mono_mb_get_label (mb);
9192 /* Call Monitor::Exit() if needed */
9193 mono_mb_emit_ldloc (mb, taken_local);
9194 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9195 mono_mb_emit_ldloc (mb, this_local);
9196 mono_mb_emit_managed_call (mb, exit_method, NULL);
9197 mono_mb_patch_branch (mb, pos2);
9198 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9200 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9202 mono_mb_patch_branch (mb, pos);
9203 if (!MONO_TYPE_IS_VOID (sig->ret))
9204 mono_mb_emit_ldloc (mb, ret_local);
9205 mono_mb_emit_byte (mb, CEE_RET);
9207 mono_mb_set_clauses (mb, 1, clause);
9212 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9213 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9215 res = mono_mb_create_and_cache_full (cache, method,
9216 mb, sig, sig->param_count + 16, info, NULL);
9225 * the returned method calls 'method' unboxing the this argument
9228 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9230 MonoMethodSignature *sig = mono_method_signature (method);
9232 MonoMethodBuilder *mb;
9237 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9239 if ((res = mono_marshal_find_in_cache (cache, method)))
9242 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9244 g_assert (sig->hasthis);
9247 mono_mb_emit_ldarg (mb, 0);
9248 mono_mb_emit_icon (mb, sizeof (MonoObject));
9249 mono_mb_emit_byte (mb, CEE_ADD);
9250 for (i = 0; i < sig->param_count; ++i)
9251 mono_mb_emit_ldarg (mb, i + 1);
9252 mono_mb_emit_managed_call (mb, method, NULL);
9253 mono_mb_emit_byte (mb, CEE_RET);
9256 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9257 info->d.unbox.method = method;
9259 res = mono_mb_create_and_cache_full (cache, method,
9260 mb, sig, sig->param_count + 16, info, NULL);
9263 /* mono_method_print_code (res); */
9269 STELEMREF_OBJECT, /*no check at all*/
9270 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9271 STELEMREF_CLASS, /*only the klass->parents check*/
9272 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9273 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9274 STELEMREF_KIND_COUNT
9277 static const char *strelemref_wrapper_name[] = {
9278 "object", "sealed_class", "class", "interface", "complex"
9282 is_monomorphic_array (MonoClass *klass)
9284 MonoClass *element_class;
9285 if (klass->rank != 1)
9288 element_class = klass->element_class;
9289 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9293 get_virtual_stelemref_kind (MonoClass *element_class)
9295 if (element_class == mono_defaults.object_class)
9296 return STELEMREF_OBJECT;
9297 if (is_monomorphic_array (element_class))
9298 return STELEMREF_SEALED_CLASS;
9299 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9300 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9301 #ifdef COMPRESSED_INTERFACE_BITMAP
9302 return STELEMREF_COMPLEX;
9304 return STELEMREF_INTERFACE;
9306 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9307 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9308 return STELEMREF_COMPLEX;
9309 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9310 return STELEMREF_SEALED_CLASS;
9311 return STELEMREF_CLASS;
9317 load_array_element_address (MonoMethodBuilder *mb)
9319 mono_mb_emit_ldarg (mb, 0);
9320 mono_mb_emit_ldarg (mb, 1);
9321 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9325 load_array_class (MonoMethodBuilder *mb, int aklass)
9327 mono_mb_emit_ldarg (mb, 0);
9328 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9329 mono_mb_emit_byte (mb, CEE_LDIND_I);
9330 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9331 mono_mb_emit_byte (mb, CEE_LDIND_I);
9332 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9333 mono_mb_emit_byte (mb, CEE_LDIND_I);
9334 mono_mb_emit_stloc (mb, aklass);
9338 load_value_class (MonoMethodBuilder *mb, int vklass)
9340 mono_mb_emit_ldarg (mb, 2);
9341 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9342 mono_mb_emit_byte (mb, CEE_LDIND_I);
9343 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9344 mono_mb_emit_byte (mb, CEE_LDIND_I);
9345 mono_mb_emit_stloc (mb, vklass);
9351 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9353 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9354 printf ("slow vstore of %s\n", name);
9360 * The wrapper info for the wrapper is a WrapperInfo structure.
9363 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9364 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9365 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9366 * - Add a case for arrays of arrays.
9369 get_virtual_stelemref_wrapper (int kind)
9371 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9372 static MonoMethodSignature *signature;
9373 MonoMethodBuilder *mb;
9376 const char *param_names [16];
9378 int aklass, vklass, vtable, uiid;
9379 int array_slot_addr;
9382 if (cached_methods [kind])
9383 return cached_methods [kind];
9385 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9386 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9390 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9392 /* void this::stelemref (size_t idx, void* value) */
9393 sig->ret = &mono_defaults.void_class->byval_arg;
9394 sig->hasthis = TRUE;
9395 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9396 sig->params [1] = &mono_defaults.object_class->byval_arg;
9401 param_names [0] = "index";
9402 param_names [1] = "value";
9403 mono_mb_set_param_names (mb, param_names);
9405 /*For now simply call plain old stelemref*/
9407 case STELEMREF_OBJECT:
9408 /* ldelema (implicit bound check) */
9409 load_array_element_address (mb);
9411 mono_mb_emit_ldarg (mb, 2);
9412 mono_mb_emit_byte (mb, CEE_STIND_REF);
9413 mono_mb_emit_byte (mb, CEE_RET);
9416 case STELEMREF_COMPLEX:
9418 <ldelema (bound check)>
9421 if (!mono_object_isinst (value, aklass))
9425 *array_slot_addr = value;
9428 throw new ArrayTypeMismatchException ();
9431 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9432 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9436 /*Use this to debug/record stores that are going thru the slow path*/
9437 MonoMethodSignature *csig;
9438 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9439 csig->ret = &mono_defaults.void_class->byval_arg;
9440 csig->params [0] = &mono_defaults.object_class->byval_arg;
9441 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9442 csig->params [2] = &mono_defaults.object_class->byval_arg;
9443 mono_mb_emit_ldarg (mb, 0);
9444 mono_mb_emit_ldarg (mb, 1);
9445 mono_mb_emit_ldarg (mb, 2);
9446 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9450 /* ldelema (implicit bound check) */
9451 load_array_element_address (mb);
9452 mono_mb_emit_stloc (mb, array_slot_addr);
9454 /* if (!value) goto do_store */
9455 mono_mb_emit_ldarg (mb, 2);
9456 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9458 /* aklass = array->vtable->klass->element_class */
9459 load_array_class (mb, aklass);
9461 /*if (mono_object_isinst (value, aklass)) */
9462 mono_mb_emit_ldarg (mb, 2);
9463 mono_mb_emit_ldloc (mb, aklass);
9464 mono_mb_emit_icall (mb, mono_object_isinst);
9465 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9468 mono_mb_patch_branch (mb, b1);
9469 mono_mb_emit_ldloc (mb, array_slot_addr);
9470 mono_mb_emit_ldarg (mb, 2);
9471 mono_mb_emit_byte (mb, CEE_STIND_REF);
9472 mono_mb_emit_byte (mb, CEE_RET);
9475 mono_mb_patch_branch (mb, b2);
9477 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9480 case STELEMREF_SEALED_CLASS:
9482 <ldelema (bound check)>
9486 aklass = array->vtable->klass->element_class;
9487 vklass = value->vtable->klass;
9489 if (vklass != aklass)
9493 *array_slot_addr = value;
9496 throw new ArrayTypeMismatchException ();
9498 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9499 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9500 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9503 /* ldelema (implicit bound check) */
9504 load_array_element_address (mb);
9505 mono_mb_emit_stloc (mb, array_slot_addr);
9507 /* if (!value) goto do_store */
9508 mono_mb_emit_ldarg (mb, 2);
9509 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9511 /* aklass = array->vtable->klass->element_class */
9512 load_array_class (mb, aklass);
9514 /* vklass = value->vtable->klass */
9515 load_value_class (mb, vklass);
9517 /*if (vklass != aklass) goto do_exception; */
9518 mono_mb_emit_ldloc (mb, aklass);
9519 mono_mb_emit_ldloc (mb, vklass);
9520 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9523 mono_mb_patch_branch (mb, b1);
9524 mono_mb_emit_ldloc (mb, array_slot_addr);
9525 mono_mb_emit_ldarg (mb, 2);
9526 mono_mb_emit_byte (mb, CEE_STIND_REF);
9527 mono_mb_emit_byte (mb, CEE_RET);
9530 mono_mb_patch_branch (mb, b2);
9531 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9534 case STELEMREF_CLASS:
9537 <ldelema (bound check)>
9541 aklass = array->vtable->klass->element_class;
9542 vklass = value->vtable->klass;
9544 if (vklass->idepth < aklass->idepth)
9547 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9551 *array_slot_addr = value;
9555 throw new ArrayTypeMismatchException ();
9557 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9558 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9559 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9561 /* ldelema (implicit bound check) */
9562 load_array_element_address (mb);
9563 mono_mb_emit_stloc (mb, array_slot_addr);
9565 /* if (!value) goto do_store */
9566 mono_mb_emit_ldarg (mb, 2);
9567 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9569 /* aklass = array->vtable->klass->element_class */
9570 load_array_class (mb, aklass);
9572 /* vklass = value->vtable->klass */
9573 load_value_class (mb, vklass);
9575 /*if (mono_object_isinst (value, aklass)) */
9576 mono_mb_emit_ldarg (mb, 2);
9577 mono_mb_emit_ldloc (mb, aklass);
9578 mono_mb_emit_icall (mb, mono_object_isinst);
9579 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9581 /* if (vklass->idepth < aklass->idepth) goto failue */
9582 mono_mb_emit_ldloc (mb, vklass);
9583 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9584 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9586 mono_mb_emit_ldloc (mb, aklass);
9587 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9588 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9590 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9592 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9593 mono_mb_emit_ldloc (mb, vklass);
9594 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9595 mono_mb_emit_byte (mb, CEE_LDIND_I);
9597 mono_mb_emit_ldloc (mb, aklass);
9598 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9599 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9600 mono_mb_emit_icon (mb, 1);
9601 mono_mb_emit_byte (mb, CEE_SUB);
9602 mono_mb_emit_icon (mb, sizeof (void*));
9603 mono_mb_emit_byte (mb, CEE_MUL);
9604 mono_mb_emit_byte (mb, CEE_ADD);
9605 mono_mb_emit_byte (mb, CEE_LDIND_I);
9607 mono_mb_emit_ldloc (mb, aklass);
9608 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9611 mono_mb_patch_branch (mb, b1);
9612 mono_mb_emit_ldloc (mb, array_slot_addr);
9613 mono_mb_emit_ldarg (mb, 2);
9614 mono_mb_emit_byte (mb, CEE_STIND_REF);
9615 mono_mb_emit_byte (mb, CEE_RET);
9618 mono_mb_patch_branch (mb, b2);
9619 mono_mb_patch_branch (mb, b3);
9621 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9624 case STELEMREF_INTERFACE:
9631 klass = array->obj.vtable->klass->element_class;
9633 uiid = klass->interface_id;
9634 if (uiid > vt->max_interface_id)
9636 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9639 mono_array_setref (array, index, value);
9642 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9644 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9645 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9646 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9647 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9649 /* ldelema (implicit bound check) */
9650 load_array_element_address (mb);
9651 mono_mb_emit_stloc (mb, array_slot_addr);
9653 /* if (!value) goto do_store */
9654 mono_mb_emit_ldarg (mb, 2);
9655 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9657 /* klass = array->vtable->klass->element_class */
9658 load_array_class (mb, aklass);
9660 /* vt = value->vtable */
9661 mono_mb_emit_ldarg (mb, 2);
9662 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9663 mono_mb_emit_byte (mb, CEE_LDIND_I);
9664 mono_mb_emit_stloc (mb, vtable);
9666 /* uiid = klass->interface_id; */
9667 mono_mb_emit_ldloc (mb, aklass);
9668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9669 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9670 mono_mb_emit_stloc (mb, uiid);
9672 /*if (uiid > vt->max_interface_id)*/
9673 mono_mb_emit_ldloc (mb, uiid);
9674 mono_mb_emit_ldloc (mb, vtable);
9675 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9676 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9677 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9679 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9681 /*vt->interface_bitmap*/
9682 mono_mb_emit_ldloc (mb, vtable);
9683 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9684 mono_mb_emit_byte (mb, CEE_LDIND_I);
9687 mono_mb_emit_ldloc (mb, uiid);
9688 mono_mb_emit_icon (mb, 3);
9689 mono_mb_emit_byte (mb, CEE_SHR_UN);
9691 /*vt->interface_bitmap [(uiid) >> 3]*/
9692 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9693 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9695 /*(1 << ((uiid)&7)))*/
9696 mono_mb_emit_icon (mb, 1);
9697 mono_mb_emit_ldloc (mb, uiid);
9698 mono_mb_emit_icon (mb, 7);
9699 mono_mb_emit_byte (mb, CEE_AND);
9700 mono_mb_emit_byte (mb, CEE_SHL);
9702 /*bitwise and the whole thing*/
9703 mono_mb_emit_byte (mb, CEE_AND);
9704 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9707 mono_mb_patch_branch (mb, b1);
9708 mono_mb_emit_ldloc (mb, array_slot_addr);
9709 mono_mb_emit_ldarg (mb, 2);
9710 mono_mb_emit_byte (mb, CEE_STIND_REF);
9711 mono_mb_emit_byte (mb, CEE_RET);
9714 mono_mb_patch_branch (mb, b2);
9715 mono_mb_patch_branch (mb, b3);
9716 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9720 mono_mb_emit_ldarg (mb, 0);
9721 mono_mb_emit_ldarg (mb, 1);
9722 mono_mb_emit_ldarg (mb, 2);
9723 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9724 mono_mb_emit_byte (mb, CEE_RET);
9727 #endif /* DISABLE_JIT */
9728 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9729 info->d.virtual_stelemref.kind = kind;
9730 res = mono_mb_create (mb, signature, 4, info);
9731 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9733 mono_marshal_lock ();
9734 if (!cached_methods [kind]) {
9735 cached_methods [kind] = res;
9736 mono_marshal_unlock ();
9738 mono_marshal_unlock ();
9739 mono_free_method (res);
9743 return cached_methods [kind];
9747 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9751 g_assert (array_class->rank == 1);
9752 kind = get_virtual_stelemref_kind (array_class->element_class);
9754 return get_virtual_stelemref_wrapper (kind);
9758 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9763 *nwrappers = STELEMREF_KIND_COUNT;
9764 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9765 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9766 res [i] = get_virtual_stelemref_wrapper (i);
9771 * The wrapper info for the wrapper is a WrapperInfo structure.
9774 mono_marshal_get_stelemref (void)
9776 static MonoMethod* ret = NULL;
9777 MonoMethodSignature *sig;
9778 MonoMethodBuilder *mb;
9781 guint32 b1, b2, b3, b4;
9784 int array_slot_addr;
9789 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9792 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9794 /* void stelemref (void* array, int idx, void* value) */
9795 sig->ret = &mono_defaults.void_class->byval_arg;
9796 sig->params [0] = &mono_defaults.object_class->byval_arg;
9797 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9798 sig->params [2] = &mono_defaults.object_class->byval_arg;
9801 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9802 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9803 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9807 <ldelema (bound check)>
9811 aklass = array->vtable->klass->element_class;
9812 vklass = value->vtable->klass;
9814 if (vklass->idepth < aklass->idepth)
9817 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9821 *array_slot_addr = value;
9825 if (mono_object_isinst (value, aklass))
9828 throw new ArrayTypeMismatchException ();
9831 /* ldelema (implicit bound check) */
9832 mono_mb_emit_ldarg (mb, 0);
9833 mono_mb_emit_ldarg (mb, 1);
9834 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9835 mono_mb_emit_stloc (mb, array_slot_addr);
9837 /* if (!value) goto do_store */
9838 mono_mb_emit_ldarg (mb, 2);
9839 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9841 /* aklass = array->vtable->klass->element_class */
9842 mono_mb_emit_ldarg (mb, 0);
9843 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9844 mono_mb_emit_byte (mb, CEE_LDIND_I);
9845 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9846 mono_mb_emit_byte (mb, CEE_LDIND_I);
9847 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9848 mono_mb_emit_byte (mb, CEE_LDIND_I);
9849 mono_mb_emit_stloc (mb, aklass);
9851 /* vklass = value->vtable->klass */
9852 mono_mb_emit_ldarg (mb, 2);
9853 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9854 mono_mb_emit_byte (mb, CEE_LDIND_I);
9855 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9856 mono_mb_emit_byte (mb, CEE_LDIND_I);
9857 mono_mb_emit_stloc (mb, vklass);
9859 /* if (vklass->idepth < aklass->idepth) goto failue */
9860 mono_mb_emit_ldloc (mb, vklass);
9861 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9862 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9864 mono_mb_emit_ldloc (mb, aklass);
9865 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9866 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9868 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9870 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9871 mono_mb_emit_ldloc (mb, vklass);
9872 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9873 mono_mb_emit_byte (mb, CEE_LDIND_I);
9875 mono_mb_emit_ldloc (mb, aklass);
9876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9877 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9878 mono_mb_emit_icon (mb, 1);
9879 mono_mb_emit_byte (mb, CEE_SUB);
9880 mono_mb_emit_icon (mb, sizeof (void*));
9881 mono_mb_emit_byte (mb, CEE_MUL);
9882 mono_mb_emit_byte (mb, CEE_ADD);
9883 mono_mb_emit_byte (mb, CEE_LDIND_I);
9885 mono_mb_emit_ldloc (mb, aklass);
9887 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9889 copy_pos = mono_mb_get_label (mb);
9891 mono_mb_patch_branch (mb, b1);
9892 mono_mb_emit_ldloc (mb, array_slot_addr);
9893 mono_mb_emit_ldarg (mb, 2);
9894 mono_mb_emit_byte (mb, CEE_STIND_REF);
9896 mono_mb_emit_byte (mb, CEE_RET);
9899 mono_mb_patch_branch (mb, b2);
9900 mono_mb_patch_branch (mb, b3);
9902 mono_mb_emit_ldarg (mb, 2);
9903 mono_mb_emit_ldloc (mb, aklass);
9904 mono_mb_emit_icall (mb, mono_object_isinst);
9906 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9907 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9908 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9910 mono_mb_emit_byte (mb, CEE_RET);
9912 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9913 ret = mono_mb_create (mb, sig, 4, info);
9920 * mono_marshal_get_gsharedvt_in_wrapper:
9922 * This wrapper handles calls from normal code to gsharedvt code.
9924 * The wrapper info for the wrapper is a WrapperInfo structure.
9927 mono_marshal_get_gsharedvt_in_wrapper (void)
9929 static MonoMethod* ret = NULL;
9930 MonoMethodSignature *sig;
9931 MonoMethodBuilder *mb;
9937 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9939 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9940 sig->ret = &mono_defaults.void_class->byval_arg;
9944 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9946 mono_mb_emit_byte (mb, CEE_RET);
9948 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9949 ret = mono_mb_create (mb, sig, 4, info);
9956 * mono_marshal_get_gsharedvt_out_wrapper:
9958 * This wrapper handles calls from gsharedvt code to normal code.
9960 * The wrapper info for the wrapper is a WrapperInfo structure.
9963 mono_marshal_get_gsharedvt_out_wrapper (void)
9965 static MonoMethod* ret = NULL;
9966 MonoMethodSignature *sig;
9967 MonoMethodBuilder *mb;
9973 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9975 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9976 sig->ret = &mono_defaults.void_class->byval_arg;
9980 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9982 mono_mb_emit_byte (mb, CEE_RET);
9984 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9985 ret = mono_mb_create (mb, sig, 4, info);
9997 /* LOCKING: vars accessed under the marshal lock */
9998 static ArrayElemAddr *elem_addr_cache = NULL;
9999 static int elem_addr_cache_size = 0;
10000 static int elem_addr_cache_next = 0;
10003 * mono_marshal_get_array_address:
10004 * @rank: rank of the array type
10005 * @elem_size: size in bytes of an element of an array.
10007 * Returns a MonoMethod that implements the code to get the address
10008 * of an element in a multi-dimenasional array of @rank dimensions.
10009 * The returned method takes an array as the first argument and then
10010 * @rank indexes for the @rank dimensions.
10011 * If ELEM_SIZE is 0, read the array size from the array object.
10014 mono_marshal_get_array_address (int rank, int elem_size)
10017 MonoMethodBuilder *mb;
10018 MonoMethodSignature *sig;
10021 int i, bounds, ind, realidx;
10022 int branch_pos, *branch_positions;
10026 mono_marshal_lock ();
10027 for (i = 0; i < elem_addr_cache_next; ++i) {
10028 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10029 ret = elem_addr_cache [i].method;
10033 mono_marshal_unlock ();
10037 branch_positions = g_new0 (int, rank);
10039 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10041 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10042 sig->ret = &mono_defaults.int_class->byval_arg;
10043 sig->params [0] = &mono_defaults.object_class->byval_arg;
10044 for (i = 0; i < rank; ++i) {
10045 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10048 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10049 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10052 #ifndef DISABLE_JIT
10053 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10054 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10055 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10057 /* bounds = array->bounds; */
10058 mono_mb_emit_ldarg (mb, 0);
10059 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10060 mono_mb_emit_byte (mb, CEE_LDIND_I);
10061 mono_mb_emit_stloc (mb, bounds);
10063 /* ind is the overall element index, realidx is the partial index in a single dimension */
10064 /* ind = idx0 - bounds [0].lower_bound */
10065 mono_mb_emit_ldarg (mb, 1);
10066 mono_mb_emit_ldloc (mb, bounds);
10067 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10068 mono_mb_emit_byte (mb, CEE_ADD);
10069 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10070 mono_mb_emit_byte (mb, CEE_SUB);
10071 mono_mb_emit_stloc (mb, ind);
10072 /* if (ind >= bounds [0].length) goto exeception; */
10073 mono_mb_emit_ldloc (mb, ind);
10074 mono_mb_emit_ldloc (mb, bounds);
10075 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10076 mono_mb_emit_byte (mb, CEE_ADD);
10077 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10078 /* note that we use unsigned comparison */
10079 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10081 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10082 * We could also decide to ignore the passed elem_size and get it
10083 * from the array object, to reduce the number of methods we generate:
10084 * the additional cost is 3 memory loads and a non-immediate mul.
10086 for (i = 1; i < rank; ++i) {
10087 /* realidx = idxi - bounds [i].lower_bound */
10088 mono_mb_emit_ldarg (mb, 1 + i);
10089 mono_mb_emit_ldloc (mb, bounds);
10090 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10091 mono_mb_emit_byte (mb, CEE_ADD);
10092 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10093 mono_mb_emit_byte (mb, CEE_SUB);
10094 mono_mb_emit_stloc (mb, realidx);
10095 /* if (realidx >= bounds [i].length) goto exeception; */
10096 mono_mb_emit_ldloc (mb, realidx);
10097 mono_mb_emit_ldloc (mb, bounds);
10098 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10099 mono_mb_emit_byte (mb, CEE_ADD);
10100 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10101 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10102 /* ind = ind * bounds [i].length + realidx */
10103 mono_mb_emit_ldloc (mb, ind);
10104 mono_mb_emit_ldloc (mb, bounds);
10105 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10106 mono_mb_emit_byte (mb, CEE_ADD);
10107 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10108 mono_mb_emit_byte (mb, CEE_MUL);
10109 mono_mb_emit_ldloc (mb, realidx);
10110 mono_mb_emit_byte (mb, CEE_ADD);
10111 mono_mb_emit_stloc (mb, ind);
10114 /* return array->vector + ind * element_size */
10115 mono_mb_emit_ldarg (mb, 0);
10116 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10117 mono_mb_emit_ldloc (mb, ind);
10119 mono_mb_emit_icon (mb, elem_size);
10121 /* Load arr->vtable->klass->sizes.element_class */
10122 mono_mb_emit_ldarg (mb, 0);
10123 mono_mb_emit_byte (mb, CEE_CONV_I);
10124 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10125 mono_mb_emit_byte (mb, CEE_ADD);
10126 mono_mb_emit_byte (mb, CEE_LDIND_I);
10127 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10128 mono_mb_emit_byte (mb, CEE_ADD);
10129 mono_mb_emit_byte (mb, CEE_LDIND_I);
10130 /* sizes is an union, so this reads sizes.element_size */
10131 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10132 mono_mb_emit_byte (mb, CEE_ADD);
10133 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10135 mono_mb_emit_byte (mb, CEE_MUL);
10136 mono_mb_emit_byte (mb, CEE_ADD);
10137 mono_mb_emit_byte (mb, CEE_RET);
10139 /* patch the branches to get here and throw */
10140 for (i = 1; i < rank; ++i) {
10141 mono_mb_patch_branch (mb, branch_positions [i]);
10143 mono_mb_patch_branch (mb, branch_pos);
10144 /* throw exception */
10145 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10147 g_free (branch_positions);
10148 #endif /* DISABLE_JIT */
10150 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10151 info->d.element_addr.rank = rank;
10152 info->d.element_addr.elem_size = elem_size;
10153 ret = mono_mb_create (mb, sig, 4, info);
10156 /* cache the result */
10158 mono_marshal_lock ();
10159 for (i = 0; i < elem_addr_cache_next; ++i) {
10160 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10161 /* FIXME: free ret */
10162 ret = elem_addr_cache [i].method;
10168 if (elem_addr_cache_next >= elem_addr_cache_size) {
10169 int new_size = elem_addr_cache_size + 4;
10170 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10171 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10172 g_free (elem_addr_cache);
10173 elem_addr_cache = new_array;
10174 elem_addr_cache_size = new_size;
10176 elem_addr_cache [elem_addr_cache_next].rank = rank;
10177 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10178 elem_addr_cache [elem_addr_cache_next].method = ret;
10179 elem_addr_cache_next ++;
10181 mono_marshal_unlock ();
10186 * mono_marshal_get_array_accessor_wrapper:
10188 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10191 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10193 MonoMethodSignature *sig;
10194 MonoMethodBuilder *mb;
10198 MonoGenericContext *ctx = NULL;
10199 MonoMethod *orig_method = NULL;
10200 MonoGenericContainer *container = NULL;
10204 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10205 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10206 * FIXME: Use generic methods.
10213 g_assert_not_reached ();
10215 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10216 if ((res = mono_marshal_find_in_cache (cache, method)))
10220 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10223 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10225 #ifndef DISABLE_JIT
10226 /* Call the method */
10228 mono_mb_emit_ldarg (mb, 0);
10229 for (i = 0; i < sig->param_count; i++)
10230 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10234 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10235 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10237 mono_mb_emit_managed_call (mb, method, NULL);
10239 mono_mb_emit_byte (mb, CEE_RET);
10242 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10243 info->d.array_accessor.method = method;
10247 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10248 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10250 res = mono_mb_create_and_cache_full (cache, method,
10251 mb, sig, sig->param_count + 16,
10260 mono_marshal_alloc (gulong size, MonoError *error)
10264 mono_error_init (error);
10267 res = CoTaskMemAlloc (size);
10269 res = g_try_malloc ((gulong)size);
10271 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10276 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10278 ves_icall_marshal_alloc (gulong size)
10281 void *ret = mono_marshal_alloc (size, &error);
10282 if (!mono_error_ok (&error)) {
10283 mono_error_set_pending_exception (&error);
10291 mono_marshal_free (gpointer ptr)
10294 CoTaskMemFree (ptr);
10301 mono_marshal_free_array (gpointer *ptr, int size)
10308 for (i = 0; i < size; i++)
10314 mono_marshal_string_to_utf16 (MonoString *s)
10316 return s ? mono_string_chars (s) : NULL;
10319 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10321 mono_marshal_string_to_utf16_copy (MonoString *s)
10327 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10328 if (!mono_error_ok (&error)) {
10329 mono_error_set_pending_exception (&error);
10332 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10333 res [mono_string_length (s)] = 0;
10339 * mono_marshal_set_last_error:
10341 * This function is invoked to set the last error value from a P/Invoke call
10342 * which has SetLastError set.
10345 mono_marshal_set_last_error (void)
10348 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10350 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10355 mono_marshal_set_last_error_windows (int error)
10358 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10363 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10364 gpointer dest, gint32 length)
10369 MONO_CHECK_ARG_NULL (src,);
10370 MONO_CHECK_ARG_NULL (dest,);
10372 if (src->obj.vtable->klass->rank != 1) {
10373 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10376 if (start_index < 0) {
10377 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10381 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10384 if (start_index + length > mono_array_length (src)) {
10385 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10389 element_size = mono_array_element_size (src->obj.vtable->klass);
10391 /* no references should be involved */
10392 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10394 memcpy (dest, source_addr, length * element_size);
10398 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10399 MonoArray *dest, gint32 length)
10404 MONO_CHECK_ARG_NULL (src,);
10405 MONO_CHECK_ARG_NULL (dest,);
10407 if (dest->obj.vtable->klass->rank != 1) {
10408 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10411 if (start_index < 0) {
10412 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10416 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10419 if (start_index + length > mono_array_length (dest)) {
10420 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10423 element_size = mono_array_element_size (dest->obj.vtable->klass);
10425 /* no references should be involved */
10426 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10428 memcpy (dest_addr, src, length * element_size);
10432 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10437 return mono_string_new (mono_domain_get (), ptr);
10441 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10444 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10447 return mono_string_new_len (mono_domain_get (), ptr, len);
10452 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10455 MonoString *res = NULL;
10456 MonoDomain *domain = mono_domain_get ();
10466 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10467 if (!mono_error_ok (&error)) {
10468 mono_error_set_pending_exception (&error);
10475 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10478 MonoString *res = NULL;
10479 MonoDomain *domain = mono_domain_get ();
10481 mono_error_init (&error);
10485 mono_error_set_argument_null (&error, "ptr", "");
10487 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10490 if (!mono_error_ok (&error))
10491 mono_error_set_pending_exception (&error);
10496 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10498 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10502 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10508 MONO_CHECK_ARG_NULL (rtype, 0);
10510 type = rtype->type;
10511 klass = mono_class_from_mono_type (type);
10512 if (!mono_class_init (klass)) {
10513 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10517 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10519 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10520 return sizeof (gpointer);
10521 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10523 MonoException *exc;
10525 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10526 exc = mono_get_exception_argument ("t", msg);
10528 mono_set_pending_exception (exc);
10532 return mono_class_native_size (klass, NULL);
10536 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10539 MonoMethod *method;
10542 MONO_CHECK_ARG_NULL (obj,);
10543 MONO_CHECK_ARG_NULL (dst,);
10545 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10549 pa [2] = &delete_old;
10551 mono_runtime_invoke_checked (method, NULL, pa, &error);
10552 if (!mono_error_ok (&error))
10553 mono_error_set_pending_exception (&error);
10557 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10559 MonoMethod *method;
10562 mono_error_init (error);
10564 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10569 mono_runtime_invoke_checked (method, NULL, pa, error);
10573 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10578 MONO_CHECK_ARG_NULL (src,);
10579 MONO_CHECK_ARG_NULL (dst,);
10581 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10583 if (t->type == MONO_TYPE_VALUETYPE) {
10584 MonoException *exc;
10587 tmp = g_strdup_printf ("Destination is a boxed value type.");
10588 exc = mono_get_exception_argument ("dst", tmp);
10591 mono_set_pending_exception (exc);
10595 ptr_to_structure (src, dst, &error);
10596 if (!mono_error_ok (&error))
10597 mono_error_set_pending_exception (&error);
10601 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10605 MonoDomain *domain = mono_domain_get ();
10610 MONO_CHECK_ARG_NULL (type, NULL);
10612 klass = mono_class_from_mono_type (type->type);
10613 if (!mono_class_init (klass)) {
10614 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10618 res = mono_object_new_checked (domain, klass, &error);
10619 if (!mono_error_ok (&error)) {
10620 mono_error_set_pending_exception (&error);
10624 ptr_to_structure (src, res, &error);
10625 if (!mono_error_ok (&error)) {
10626 mono_error_set_pending_exception (&error);
10634 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10636 MonoMarshalType *info;
10639 int match_index = -1;
10641 MONO_CHECK_ARG_NULL (type, 0);
10642 MONO_CHECK_ARG_NULL (field_name, 0);
10644 fname = mono_string_to_utf8 (field_name);
10645 klass = mono_class_from_mono_type (type->type);
10646 if (!mono_class_init (klass)) {
10647 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10651 while (klass && match_index == -1) {
10652 MonoClassField* field;
10654 gpointer iter = NULL;
10655 while ((field = mono_class_get_fields (klass, &iter))) {
10656 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10658 if (!strcmp (fname, mono_field_get_name (field))) {
10665 if (match_index == -1)
10666 klass = klass->parent;
10671 if(match_index == -1) {
10672 MonoException* exc;
10675 /* Get back original class instance */
10676 klass = mono_class_from_mono_type (type->type);
10678 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10679 exc = mono_get_exception_argument ("fieldName", tmp);
10682 mono_set_pending_exception ((MonoException*)exc);
10686 info = mono_marshal_load_type_info (klass);
10687 return info->fields [match_index].offset;
10691 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10696 tres = mono_string_to_utf8 (string);
10700 len = strlen (tres) + 1;
10701 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10702 memcpy (ret, tres, len);
10707 return mono_string_to_utf8 (string);
10712 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10714 if (string == NULL)
10717 #ifdef TARGET_WIN32
10718 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10719 ((mono_string_length (string) + 1) * 2);
10721 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10723 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10724 res [mono_string_length (string)] = 0;
10730 mono_struct_delete_old (MonoClass *klass, char *ptr)
10732 MonoMarshalType *info;
10735 info = mono_marshal_load_type_info (klass);
10737 for (i = 0; i < info->num_fields; i++) {
10738 MonoMarshalConv conv;
10739 MonoType *ftype = info->fields [i].field->type;
10742 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10745 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10746 klass->unicode, &conv);
10748 cpos = ptr + info->fields [i].offset;
10751 case MONO_MARSHAL_CONV_NONE:
10752 if (MONO_TYPE_ISSTRUCT (ftype)) {
10753 mono_struct_delete_old (ftype->data.klass, cpos);
10757 case MONO_MARSHAL_CONV_STR_LPWSTR:
10758 /* We assume this field points inside a MonoString */
10760 case MONO_MARSHAL_CONV_STR_LPTSTR:
10761 #ifdef TARGET_WIN32
10762 /* We assume this field points inside a MonoString
10766 case MONO_MARSHAL_CONV_STR_LPSTR:
10767 case MONO_MARSHAL_CONV_STR_BSTR:
10768 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10769 case MONO_MARSHAL_CONV_STR_TBSTR:
10770 mono_marshal_free (*(gpointer *)cpos);
10780 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10784 MONO_CHECK_ARG_NULL (src,);
10785 MONO_CHECK_ARG_NULL (type,);
10787 klass = mono_class_from_mono_type (type->type);
10788 if (!mono_class_init (klass)) {
10789 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10793 mono_struct_delete_old (klass, (char *)src);
10797 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10800 size_t s = (size_t)size;
10803 /* This returns a valid pointer for size 0 on MS.NET */
10807 res = GlobalAlloc (GMEM_FIXED, s);
10809 res = g_try_malloc (s);
10812 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10820 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10823 size_t s = (size_t)size;
10826 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10831 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10833 res = g_try_realloc (ptr, s);
10836 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10844 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10854 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10859 res = CoTaskMemAlloc (size);
10861 if ((gulong)size == 0)
10862 /* This returns a valid pointer for size 0 on MS.NET */
10865 res = g_try_malloc ((gulong)size);
10868 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10875 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10878 CoTaskMemFree (ptr);
10885 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10890 res = CoTaskMemRealloc (ptr, size);
10892 res = g_try_realloc (ptr, (gulong)size);
10895 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10902 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10904 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10908 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10910 MonoClass *klass = mono_type_get_class (type->type);
10911 if (!mono_class_init (klass)) {
10912 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10916 return mono_ftnptr_to_delegate (klass, ftn);
10920 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10922 return mono_delegate_to_ftnptr (delegate);
10926 * mono_marshal_is_loading_type_info:
10928 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10932 mono_marshal_is_loading_type_info (MonoClass *klass)
10934 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10936 return g_slist_find (loads_list, klass) != NULL;
10940 * mono_marshal_load_type_info:
10942 * Initialize klass->marshal_info using information from metadata. This function can
10943 * recursively call itself, and the caller is responsible to avoid that by calling
10944 * mono_marshal_is_loading_type_info () beforehand.
10946 * LOCKING: Acquires the loader lock.
10949 mono_marshal_load_type_info (MonoClass* klass)
10952 guint32 native_size = 0, min_align = 1, packing;
10953 MonoMarshalType *info;
10954 MonoClassField* field;
10957 GSList *loads_list;
10959 g_assert (klass != NULL);
10961 if (klass->marshal_info)
10962 return klass->marshal_info;
10964 if (!klass->inited)
10965 mono_class_init (klass);
10967 if (klass->marshal_info)
10968 return klass->marshal_info;
10971 * This function can recursively call itself, so we keep the list of classes which are
10972 * under initialization in a TLS list.
10974 g_assert (!mono_marshal_is_loading_type_info (klass));
10975 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10976 loads_list = g_slist_prepend (loads_list, klass);
10977 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10980 while ((field = mono_class_get_fields (klass, &iter))) {
10981 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10983 if (mono_field_is_deleted (field))
10988 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10990 /* The mempool is protected by the loader lock */
10991 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10992 info->num_fields = count;
10994 /* Try to find a size for this type in metadata */
10995 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10997 if (klass->parent) {
10998 int parent_size = mono_class_native_size (klass->parent, NULL);
11000 /* Add parent size to real size */
11001 native_size += parent_size;
11002 info->native_size = parent_size;
11005 packing = klass->packing_size ? klass->packing_size : 8;
11008 while ((field = mono_class_get_fields (klass, &iter))) {
11012 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11015 if (mono_field_is_deleted (field))
11017 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11018 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11019 NULL, NULL, &info->fields [j].mspec);
11021 info->fields [j].field = field;
11023 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11024 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11025 /* This field is a hack inserted by MCS to empty structures */
11030 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11031 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11032 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11033 &align, TRUE, klass->unicode);
11034 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11035 min_align = MAX (align, min_align);
11036 info->fields [j].offset = info->native_size;
11037 info->fields [j].offset += align - 1;
11038 info->fields [j].offset &= ~(align - 1);
11039 info->native_size = info->fields [j].offset + size;
11041 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11042 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11043 &align, TRUE, klass->unicode);
11044 min_align = MAX (align, min_align);
11045 info->fields [j].offset = field->offset - sizeof (MonoObject);
11046 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11052 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11053 info->native_size = MAX (native_size, info->native_size);
11055 * If the provided Size is equal or larger than the calculated size, and there
11056 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11058 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11059 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11062 min_align = MIN (min_align, packing);
11066 if (info->native_size & (min_align - 1)) {
11067 info->native_size += min_align - 1;
11068 info->native_size &= ~(min_align - 1);
11071 info->min_align = min_align;
11073 /* Update the class's blittable info, if the layouts don't match */
11074 if (info->native_size != mono_class_value_size (klass, NULL))
11075 klass->blittable = FALSE;
11077 /* If this is an array type, ensure that we have element info */
11078 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11079 mono_marshal_load_type_info (klass->element_class);
11082 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11083 loads_list = g_slist_remove (loads_list, klass);
11084 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11086 mono_marshal_lock ();
11087 if (!klass->marshal_info) {
11088 /*We do double-checking locking on marshal_info */
11089 mono_memory_barrier ();
11090 klass->marshal_info = info;
11092 mono_marshal_unlock ();
11094 return klass->marshal_info;
11098 * mono_class_native_size:
11101 * Returns: the native size of an object instance (when marshaled
11102 * to unmanaged code)
11105 mono_class_native_size (MonoClass *klass, guint32 *align)
11107 if (!klass->marshal_info) {
11108 if (mono_marshal_is_loading_type_info (klass)) {
11113 mono_marshal_load_type_info (klass);
11118 *align = klass->marshal_info->min_align;
11120 return klass->marshal_info->native_size;
11124 * mono_type_native_stack_size:
11125 * @t: the type to return the size it uses on the stack
11127 * Returns: the number of bytes required to hold an instance of this
11128 * type on the native stack
11131 mono_type_native_stack_size (MonoType *t, guint32 *align)
11135 g_assert (t != NULL);
11141 *align = sizeof (gpointer);
11142 return sizeof (gpointer);
11146 case MONO_TYPE_BOOLEAN:
11147 case MONO_TYPE_CHAR:
11158 case MONO_TYPE_STRING:
11159 case MONO_TYPE_OBJECT:
11160 case MONO_TYPE_CLASS:
11161 case MONO_TYPE_SZARRAY:
11162 case MONO_TYPE_PTR:
11163 case MONO_TYPE_FNPTR:
11164 case MONO_TYPE_ARRAY:
11165 *align = sizeof (gpointer);
11166 return sizeof (gpointer);
11171 *align = MONO_ABI_ALIGNOF (double);
11175 *align = MONO_ABI_ALIGNOF (gint64);
11177 case MONO_TYPE_GENERICINST:
11178 if (!mono_type_generic_inst_is_valuetype (t)) {
11179 *align = sizeof (gpointer);
11180 return sizeof (gpointer);
11183 case MONO_TYPE_TYPEDBYREF:
11184 case MONO_TYPE_VALUETYPE: {
11186 MonoClass *klass = mono_class_from_mono_type (t);
11188 if (klass->enumtype)
11189 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11191 size = mono_class_native_size (klass, align);
11192 *align = *align + 3;
11202 g_error ("type 0x%02x unknown", t->type);
11208 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11209 gboolean as_field, gboolean unicode)
11211 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11214 switch (native_type) {
11215 case MONO_NATIVE_BOOLEAN:
11218 case MONO_NATIVE_I1:
11219 case MONO_NATIVE_U1:
11222 case MONO_NATIVE_I2:
11223 case MONO_NATIVE_U2:
11224 case MONO_NATIVE_VARIANTBOOL:
11227 case MONO_NATIVE_I4:
11228 case MONO_NATIVE_U4:
11229 case MONO_NATIVE_ERROR:
11232 case MONO_NATIVE_I8:
11233 case MONO_NATIVE_U8:
11234 *align = MONO_ABI_ALIGNOF (gint64);
11236 case MONO_NATIVE_R4:
11239 case MONO_NATIVE_R8:
11240 *align = MONO_ABI_ALIGNOF (double);
11242 case MONO_NATIVE_INT:
11243 case MONO_NATIVE_UINT:
11244 case MONO_NATIVE_LPSTR:
11245 case MONO_NATIVE_LPWSTR:
11246 case MONO_NATIVE_LPTSTR:
11247 case MONO_NATIVE_BSTR:
11248 case MONO_NATIVE_ANSIBSTR:
11249 case MONO_NATIVE_TBSTR:
11250 case MONO_NATIVE_LPARRAY:
11251 case MONO_NATIVE_SAFEARRAY:
11252 case MONO_NATIVE_IUNKNOWN:
11253 case MONO_NATIVE_IDISPATCH:
11254 case MONO_NATIVE_INTERFACE:
11255 case MONO_NATIVE_ASANY:
11256 case MONO_NATIVE_FUNC:
11257 case MONO_NATIVE_LPSTRUCT:
11258 *align = MONO_ABI_ALIGNOF (gpointer);
11259 return sizeof (gpointer);
11260 case MONO_NATIVE_STRUCT:
11261 klass = mono_class_from_mono_type (type);
11262 if (klass == mono_defaults.object_class &&
11263 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11267 return mono_class_native_size (klass, align);
11268 case MONO_NATIVE_BYVALTSTR: {
11269 int esize = unicode ? 2: 1;
11272 return mspec->data.array_data.num_elem * esize;
11274 case MONO_NATIVE_BYVALARRAY: {
11275 // FIXME: Have to consider ArraySubType
11277 klass = mono_class_from_mono_type (type);
11278 if (klass->element_class == mono_defaults.char_class) {
11279 esize = unicode ? 2 : 1;
11282 esize = mono_class_native_size (klass->element_class, align);
11285 return mspec->data.array_data.num_elem * esize;
11287 case MONO_NATIVE_CUSTOM:
11288 *align = sizeof (gpointer);
11289 return sizeof (gpointer);
11291 case MONO_NATIVE_CURRENCY:
11292 case MONO_NATIVE_VBBYREFSTR:
11294 g_error ("native type %02x not implemented", native_type);
11297 g_assert_not_reached ();
11301 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11303 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11312 t = &o->vtable->klass->byval_arg;
11316 case MONO_TYPE_PTR:
11319 case MONO_TYPE_BOOLEAN:
11322 case MONO_TYPE_CHAR:
11327 return mono_object_unbox (o);
11329 case MONO_TYPE_STRING:
11330 switch (string_encoding) {
11331 case MONO_NATIVE_LPWSTR:
11332 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11334 case MONO_NATIVE_LPSTR:
11335 return mono_string_to_lpstr ((MonoString*)o);
11338 g_warning ("marshaling conversion %d not implemented", string_encoding);
11339 g_assert_not_reached ();
11342 case MONO_TYPE_CLASS:
11343 case MONO_TYPE_VALUETYPE: {
11344 MonoMethod *method;
11347 MonoBoolean delete_old = FALSE;
11349 klass = t->data.klass;
11351 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11354 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11355 klass->blittable || klass->enumtype))
11356 return mono_object_unbox (o);
11358 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11359 if (!mono_error_ok (&error)) {
11360 mono_error_set_pending_exception (&error);
11364 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11365 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11369 pa [2] = &delete_old;
11371 mono_runtime_invoke_checked (method, NULL, pa, &error);
11372 if (!mono_error_ok (&error)) {
11373 mono_error_set_pending_exception (&error);
11383 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11387 /* This is a JIT icall, it sets the pending exception */
11389 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11398 t = &o->vtable->klass->byval_arg;
11400 case MONO_TYPE_STRING:
11401 switch (string_encoding) {
11402 case MONO_NATIVE_LPWSTR:
11403 case MONO_NATIVE_LPSTR:
11404 mono_marshal_free (ptr);
11407 g_warning ("marshaling conversion %d not implemented", string_encoding);
11408 g_assert_not_reached ();
11411 case MONO_TYPE_CLASS:
11412 case MONO_TYPE_VALUETYPE: {
11413 klass = t->data.klass;
11415 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11416 klass->blittable || klass->enumtype))
11419 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11420 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11426 mono_runtime_invoke_checked (method, NULL, pa, &error);
11427 if (!mono_error_ok (&error)) {
11428 mono_error_set_pending_exception (&error);
11433 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11434 mono_struct_delete_old (klass, (char *)ptr);
11437 mono_marshal_free (ptr);
11446 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11448 MonoMethodSignature *sig, *csig;
11449 MonoMethodBuilder *mb;
11454 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11455 mb->method->slot = -1;
11457 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11458 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11460 sig = mono_method_signature (method);
11461 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11462 csig->generic_param_count = 0;
11464 #ifndef DISABLE_JIT
11465 mono_mb_emit_ldarg (mb, 0);
11466 for (i = 0; i < csig->param_count; i++)
11467 mono_mb_emit_ldarg (mb, i + 1);
11468 mono_mb_emit_managed_call (mb, method, NULL);
11469 mono_mb_emit_byte (mb, CEE_RET);
11471 /* We can corlib internal methods */
11472 mb->skip_visibility = TRUE;
11474 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11475 info->d.generic_array_helper.method = method;
11476 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11484 * The mono_win32_compat_* functions are implementations of inline
11485 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11486 * although not exported by kernel32.
11488 * We map the appropiate kernel32 entries to these functions using
11489 * dllmaps declared in the global etc/mono/config.
11493 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11495 if (!dest || !source)
11498 memcpy (dest, source, length);
11502 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11504 memset (dest, fill, length);
11508 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11510 if (!dest || !source)
11513 memmove (dest, source, length);
11517 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11519 memset (dest, 0, length);
11523 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11528 for (i = 0; i < len; ++i)
11532 g_assert (i < len);
11535 while (byte && !(byte & 1))
11537 g_assert (byte == 1);
11540 *bitmask = buf [i];
11544 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11546 MonoMethodBuilder *mb;
11547 MonoMethodSignature *sig, *csig;
11548 MonoExceptionClause *clause;
11553 int i, param_count, sig_size, pos_leave;
11554 int coop_gc_var, coop_gc_dummy_local;
11558 klass = method->klass;
11559 image = method->klass->image;
11561 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11563 if ((res = mono_marshal_find_in_cache (cache, method)))
11566 sig = mono_method_signature (method);
11567 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11569 /* add "this" and exception param */
11570 param_count = sig->param_count + sig->hasthis + 1;
11572 /* dup & extend signature */
11573 csig = mono_metadata_signature_alloc (image, param_count);
11574 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11575 memcpy (csig, sig, sig_size);
11576 csig->param_count = param_count;
11579 csig->call_convention = MONO_CALL_DEFAULT;
11581 if (sig->hasthis) {
11583 csig->params [0] = &klass->byval_arg;
11584 /* move params up by one */
11585 for (i = 0; i < sig->param_count; i++)
11586 csig->params [i + 1] = sig->params [i];
11589 /* setup exception param as byref+[out] */
11590 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11591 &mono_defaults.exception_class->byval_arg);
11592 csig->params [param_count - 1]->byref = 1;
11593 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11595 /* convert struct return to object */
11596 if (MONO_TYPE_ISSTRUCT (sig->ret))
11597 csig->ret = &mono_defaults.object_class->byval_arg;
11599 #ifndef DISABLE_JIT
11600 /* local 0 (temp for exception object) */
11601 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11603 /* local 1 (temp for result) */
11604 if (!MONO_TYPE_IS_VOID (sig->ret))
11605 mono_mb_add_local (mb, sig->ret);
11607 if (mono_threads_is_coop_enabled ()) {
11608 /* local 4, the local to be used when calling the reset_blocking funcs */
11609 /* tons of code hardcode 3 to be the return var */
11610 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11611 /* local 5, the local used to get a stack address for suspend funcs */
11612 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11615 /* clear exception arg */
11616 mono_mb_emit_ldarg (mb, param_count - 1);
11617 mono_mb_emit_byte (mb, CEE_LDNULL);
11618 mono_mb_emit_byte (mb, CEE_STIND_REF);
11620 if (mono_threads_is_coop_enabled ()) {
11621 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11622 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11623 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11624 mono_mb_emit_stloc (mb, coop_gc_var);
11628 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11629 clause->try_offset = mono_mb_get_label (mb);
11631 /* push method's args */
11632 for (i = 0; i < param_count - 1; i++) {
11636 mono_mb_emit_ldarg (mb, i);
11638 /* get the byval type of the param */
11639 klass = mono_class_from_mono_type (csig->params [i]);
11640 type = &klass->byval_arg;
11642 /* unbox struct args */
11643 if (MONO_TYPE_ISSTRUCT (type)) {
11644 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11646 /* byref args & and the "this" arg must remain a ptr.
11647 Otherwise make a copy of the value type */
11648 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11649 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11651 csig->params [i] = &mono_defaults.object_class->byval_arg;
11656 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11657 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11659 mono_mb_emit_op (mb, CEE_CALL, method);
11661 /* save result at local 1 */
11662 if (!MONO_TYPE_IS_VOID (sig->ret))
11663 mono_mb_emit_stloc (mb, 1);
11665 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11668 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11669 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11670 clause->data.catch_class = mono_defaults.object_class;
11672 clause->handler_offset = mono_mb_get_label (mb);
11674 /* store exception at local 0 */
11675 mono_mb_emit_stloc (mb, 0);
11676 mono_mb_emit_ldarg (mb, param_count - 1);
11677 mono_mb_emit_ldloc (mb, 0);
11678 mono_mb_emit_byte (mb, CEE_STIND_REF);
11679 mono_mb_emit_branch (mb, CEE_LEAVE);
11681 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11683 mono_mb_set_clauses (mb, 1, clause);
11685 mono_mb_patch_branch (mb, pos_leave);
11688 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11689 mono_mb_emit_ldloc (mb, 1);
11691 /* box the return value */
11692 if (MONO_TYPE_ISSTRUCT (sig->ret))
11693 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11696 if (mono_threads_is_coop_enabled ()) {
11697 /* XXX merge reset_blocking_end with detach */
11698 mono_mb_emit_ldloc (mb, coop_gc_var);
11699 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11700 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11703 mono_mb_emit_byte (mb, CEE_RET);
11706 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11713 * mono_marshal_free_dynamic_wrappers:
11715 * Free wrappers of the dynamic method METHOD.
11718 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11720 MonoImage *image = method->klass->image;
11722 g_assert (method_is_dynamic (method));
11724 /* This could be called during shutdown */
11725 if (marshal_mutex_initialized)
11726 mono_marshal_lock ();
11728 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11729 * they could be shared with other methods ?
11731 if (image->wrapper_caches.runtime_invoke_direct_cache)
11732 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11733 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11734 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11735 // FIXME: Need to clear the caches in other images as well
11736 if (image->delegate_bound_static_invoke_cache)
11737 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11739 if (marshal_mutex_initialized)
11740 mono_marshal_unlock ();