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)
453 MonoCustomAttrInfo *cinfo;
454 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
456 /* The attribute is only available in Net 2.0 */
457 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
459 * The pinvoke attributes are stored in a real custom attribute so we have to
462 cinfo = mono_custom_attrs_from_class (klass);
463 if (cinfo && !mono_runtime_get_no_exec ()) {
465 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
467 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
469 if (!mono_error_ok (&error)) {
470 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
471 mono_error_cleanup (&error);
475 mono_custom_attrs_free (cinfo);
480 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
482 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
491 mono_marshal_lock ();
492 if (delegate_hash_table == NULL)
493 delegate_hash_table = delegate_hash_table_new ();
495 if (mono_gc_is_moving ()) {
496 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
497 mono_marshal_unlock ();
499 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
503 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
504 mono_marshal_unlock ();
507 /* This is a native function, so construct a delegate for it */
508 MonoMethodSignature *sig;
510 MonoMarshalSpec **mspecs;
511 MonoMethod *invoke = mono_get_delegate_invoke (klass);
512 MonoMethodPInvoke piinfo;
513 MonoObject *this_obj;
516 if (use_aot_wrappers) {
517 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
518 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
520 memset (&piinfo, 0, sizeof (piinfo));
521 parse_unmanaged_function_pointer_attr (klass, &piinfo);
523 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
524 mono_method_get_marshal_info (invoke, mspecs);
525 /* Freed below so don't alloc from mempool */
526 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
529 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
532 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
534 mono_metadata_free_marshal_spec (mspecs [i]);
539 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
540 if (!mono_error_ok (&error)) {
541 mono_error_set_pending_exception (&error);
544 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
547 if (d->object.vtable->domain != mono_domain_get ()) {
548 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
556 mono_delegate_free_ftnptr (MonoDelegate *delegate)
561 delegate_hash_table_remove (delegate);
563 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
565 if (!delegate->target) {
566 /* The wrapper method is shared between delegates -> no need to free it */
575 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
578 method = mono_jit_info_get_method (ji);
579 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
581 /*the target gchandle is the first entry after size and the wrapper itself.*/
582 gchandle = GPOINTER_TO_UINT (method_data [2]);
585 mono_gchandle_free (gchandle);
587 mono_runtime_free_method (mono_object_domain (delegate), method);
592 mono_string_from_byvalstr (const char *data, int max_len)
594 MonoDomain *domain = mono_domain_get ();
600 while (len < max_len - 1 && data [len])
603 return mono_string_new_len (domain, data, len);
606 /* This is a JIT icall, it sets the pending exception and return NULL on error */
608 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
611 MonoString *res = NULL;
612 MonoDomain *domain = mono_domain_get ();
618 while (data [len]) len++;
620 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
621 if (!mono_error_ok (&error)) {
622 mono_error_set_pending_exception (&error);
629 mono_array_to_savearray (MonoArray *array)
634 g_assert_not_reached ();
639 mono_array_to_lparray (MonoArray *array)
642 gpointer *nativeArray = NULL;
643 int nativeArraySize = 0;
653 klass = array->obj.vtable->klass;
655 switch (klass->element_class->byval_arg.type) {
657 g_assert_not_reached ();
659 case MONO_TYPE_CLASS:
660 nativeArraySize = array->max_length;
661 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
662 for(i = 0; i < nativeArraySize; ++i)
663 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
666 case MONO_TYPE_BOOLEAN:
679 case MONO_TYPE_VALUETYPE:
683 case MONO_TYPE_GENERICINST:
684 case MONO_TYPE_OBJECT:
685 case MONO_TYPE_ARRAY:
686 case MONO_TYPE_SZARRAY:
687 case MONO_TYPE_STRING:
689 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
690 g_assert_not_reached ();
693 return array->vector;
697 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
708 klass = array->obj.vtable->klass;
710 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
711 for(i = 0; i < array->max_length; ++i)
712 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
719 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
721 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
723 if (elclass == mono_defaults.byte_class) {
724 GError *error = NULL;
728 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
731 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
735 g_error_free (error);
738 g_assert_not_reached ();
742 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
744 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
747 /* This is a JIT icall, it sets the pending exception and returns on error */
749 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
751 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
753 if (elclass == mono_defaults.byte_class) {
755 GError *error = NULL;
757 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
759 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
760 g_error_free (error);
764 memcpy (native_arr, as, MIN (strlen (as), elnum));
767 g_assert_not_reached ();
772 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
774 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
777 static MonoStringBuilder *
778 mono_string_builder_new (int starting_string_length)
780 static MonoClass *string_builder_class;
781 static MonoMethod *sb_ctor;
782 static void *args [1];
785 int initial_len = starting_string_length;
791 MonoMethodDesc *desc;
794 string_builder_class = mono_class_get_string_builder_class ();
795 g_assert (string_builder_class);
796 desc = mono_method_desc_new (":.ctor(int)", FALSE);
797 m = mono_method_desc_search_in_class (desc, string_builder_class);
799 mono_method_desc_free (desc);
800 mono_memory_barrier ();
804 // We make a new array in the _to_builder function, so this
805 // array will always be garbage collected.
806 args [0] = &initial_len;
808 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
809 mono_error_assert_ok (&error);
812 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
813 g_assert (exc == NULL);
814 mono_error_assert_ok (&error);
816 g_assert (sb->chunkChars->max_length >= initial_len);
822 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
824 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
825 gunichar2 *charSrc = (gunichar2 *)text;
826 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
828 sb->chunkLength = string_len;
834 mono_string_utf16_to_builder2 (gunichar2 *text)
840 for (len = 0; text [len] != 0; ++len);
842 MonoStringBuilder *sb = mono_string_builder_new (len);
843 mono_string_utf16_to_builder (sb, text);
849 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
854 int len = strlen (text);
855 if (len > mono_string_builder_capacity (sb))
856 len = mono_string_builder_capacity (sb);
858 GError *error = NULL;
860 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
863 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
864 mono_string_utf16_to_builder_copy (sb, ut, copied);
866 g_error_free (error);
872 mono_string_utf8_to_builder2 (char *text)
877 int len = strlen (text);
878 MonoStringBuilder *sb = mono_string_builder_new (len);
879 mono_string_utf8_to_builder (sb, text);
886 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
892 for (len = 0; text [len] != 0; ++len);
894 if (len > mono_string_builder_capacity (sb))
895 len = mono_string_builder_capacity (sb);
897 mono_string_utf16_to_builder_copy (sb, text, len);
901 * mono_string_builder_to_utf8:
902 * @sb: the string builder
904 * Converts to utf8 the contents of the MonoStringBuilder.
906 * Returns: a utf8 string with the contents of the StringBuilder.
908 * The return value must be released with g_free.
910 * This is a JIT icall, it sets the pending exception and returns NULL on error.
913 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
916 GError *gerror = NULL;
921 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
923 guint str_len = mono_string_builder_string_length (sb);
925 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
928 g_error_free (gerror);
930 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
933 guint len = mono_string_builder_capacity (sb) + 1;
934 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
935 if (!mono_error_ok (&error)) {
938 mono_error_set_pending_exception (&error);
942 g_assert (str_len < len);
943 memcpy (res, tmp, str_len * sizeof (gchar));
953 * mono_string_builder_to_utf16:
954 * @sb: the string builder
956 * Converts to utf16 the contents of the MonoStringBuilder.
958 * Returns: a utf16 string with the contents of the StringBuilder.
960 * The return value must not be freed.
961 * This is a JIT icall, it sets the pending exception and returns NULL on error.
964 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
971 g_assert (sb->chunkChars);
973 guint len = mono_string_builder_capacity (sb);
978 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
979 if (!mono_error_ok (&error)) {
980 mono_error_set_pending_exception (&error);
989 MonoStringBuilder* chunk = sb;
991 if (chunk->chunkLength > 0) {
992 // Check that we will not overrun our boundaries.
993 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
995 if (chunk->chunkLength <= len) {
996 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
998 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1001 len -= chunk->chunkLength;
1003 chunk = chunk->chunkPrevious;
1004 } while (chunk != NULL);
1009 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1011 mono_string_to_lpstr (MonoString *s)
1016 GError *error = NULL;
1022 as = CoTaskMemAlloc (1);
1027 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1029 MonoException *exc = mono_get_exception_argument ("string", error->message);
1030 g_error_free (error);
1031 mono_set_pending_exception (exc);
1034 as = CoTaskMemAlloc (len + 1);
1035 memcpy (as, tmp, len + 1);
1040 return mono_string_to_utf8 (s);
1045 mono_string_to_ansibstr (MonoString *string_obj)
1047 g_error ("UnmanagedMarshal.BStr is not implemented.");
1052 * mono_string_to_byvalstr:
1053 * @dst: Where to store the null-terminated utf8 decoded string.
1054 * @src: the MonoString to copy.
1055 * @size: the maximum number of bytes to copy.
1057 * Copies the MonoString pointed to by @src as a utf8 string
1058 * into @dst, it copies at most @size bytes into the destination.
1061 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1066 g_assert (dst != NULL);
1067 g_assert (size > 0);
1069 memset (dst, 0, size);
1073 s = mono_string_to_utf8 (src);
1074 len = MIN (size, strlen (s));
1077 memcpy (dst, s, len);
1082 * mono_string_to_byvalwstr:
1083 * @dst: Where to store the null-terminated utf16 decoded string.
1084 * @src: the MonoString to copy.
1085 * @size: the maximum number of bytes to copy.
1087 * Copies the MonoString pointed to by @src as a utf16 string into
1088 * @dst, it copies at most @size bytes into the destination (including
1089 * a terminating 16-bit zero terminator).
1092 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1096 g_assert (dst != NULL);
1097 g_assert (size > 1);
1100 memset (dst, 0, size * 2);
1104 len = MIN (size, (mono_string_length (src)));
1105 memcpy (dst, mono_string_chars (src), size * 2);
1106 if (size <= mono_string_length (src))
1108 *((gunichar2 *) dst + len) = 0;
1112 mono_string_new_len_wrapper (const char *text, guint length)
1114 return mono_string_new_len (mono_domain_get (), text, length);
1120 * mono_mb_emit_exception_marshal_directive:
1122 * This function assumes ownership of MSG, which should be malloc-ed.
1125 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1130 s = mono_image_strdup (mb->method->klass->image, msg);
1135 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1138 #endif /* !DISABLE_JIT */
1141 mono_type_to_ldind (MonoType *type)
1147 switch (type->type) {
1149 return CEE_LDIND_I1;
1151 case MONO_TYPE_BOOLEAN:
1152 return CEE_LDIND_U1;
1154 return CEE_LDIND_I2;
1156 case MONO_TYPE_CHAR:
1157 return CEE_LDIND_U2;
1159 return CEE_LDIND_I4;
1161 return CEE_LDIND_U4;
1165 case MONO_TYPE_FNPTR:
1167 case MONO_TYPE_CLASS:
1168 case MONO_TYPE_STRING:
1169 case MONO_TYPE_OBJECT:
1170 case MONO_TYPE_SZARRAY:
1171 case MONO_TYPE_ARRAY:
1172 return CEE_LDIND_REF;
1175 return CEE_LDIND_I8;
1177 return CEE_LDIND_R4;
1179 return CEE_LDIND_R8;
1180 case MONO_TYPE_VALUETYPE:
1181 if (type->data.klass->enumtype) {
1182 type = mono_class_enum_basetype (type->data.klass);
1186 case MONO_TYPE_TYPEDBYREF:
1188 case MONO_TYPE_GENERICINST:
1189 type = &type->data.generic_class->container_class->byval_arg;
1192 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1198 mono_type_to_stind (MonoType *type)
1204 switch (type->type) {
1207 case MONO_TYPE_BOOLEAN:
1208 return CEE_STIND_I1;
1211 case MONO_TYPE_CHAR:
1212 return CEE_STIND_I2;
1215 return CEE_STIND_I4;
1219 case MONO_TYPE_FNPTR:
1221 case MONO_TYPE_CLASS:
1222 case MONO_TYPE_STRING:
1223 case MONO_TYPE_OBJECT:
1224 case MONO_TYPE_SZARRAY:
1225 case MONO_TYPE_ARRAY:
1226 return CEE_STIND_REF;
1229 return CEE_STIND_I8;
1231 return CEE_STIND_R4;
1233 return CEE_STIND_R8;
1234 case MONO_TYPE_VALUETYPE:
1235 if (type->data.klass->enumtype) {
1236 type = mono_class_enum_basetype (type->data.klass);
1240 case MONO_TYPE_TYPEDBYREF:
1242 case MONO_TYPE_GENERICINST:
1243 type = &type->data.generic_class->container_class->byval_arg;
1246 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1254 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1257 case MONO_MARSHAL_CONV_BOOL_I4:
1258 mono_mb_emit_ldloc (mb, 1);
1259 mono_mb_emit_ldloc (mb, 0);
1260 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1261 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1262 mono_mb_emit_byte (mb, 3);
1263 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1264 mono_mb_emit_byte (mb, CEE_BR_S);
1265 mono_mb_emit_byte (mb, 1);
1266 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1267 mono_mb_emit_byte (mb, CEE_STIND_I1);
1269 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_ldloc (mb, 0);
1272 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1273 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1274 mono_mb_emit_byte (mb, 3);
1275 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1276 mono_mb_emit_byte (mb, CEE_BR_S);
1277 mono_mb_emit_byte (mb, 1);
1278 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1279 mono_mb_emit_byte (mb, CEE_STIND_I1);
1281 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1282 MonoClass *eklass = NULL;
1285 if (type->type == MONO_TYPE_SZARRAY) {
1286 eklass = type->data.klass;
1288 g_assert_not_reached ();
1291 esize = mono_class_native_size (eklass, NULL);
1293 /* create a new array */
1294 mono_mb_emit_ldloc (mb, 1);
1295 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1296 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1297 mono_mb_emit_byte (mb, CEE_STIND_I);
1299 if (eklass->blittable) {
1300 /* copy the elements */
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_byte (mb, CEE_LDIND_I);
1303 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1304 mono_mb_emit_byte (mb, CEE_ADD);
1305 mono_mb_emit_ldloc (mb, 0);
1306 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1307 mono_mb_emit_byte (mb, CEE_PREFIX1);
1308 mono_mb_emit_byte (mb, CEE_CPBLK);
1311 int array_var, src_var, dst_var, index_var;
1312 guint32 label2, label3;
1314 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1315 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1316 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1321 mono_mb_emit_stloc (mb, array_var);
1323 /* save the old src pointer */
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_stloc (mb, src_var);
1326 /* save the old dst pointer */
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_stloc (mb, dst_var);
1330 /* Emit marshalling loop */
1331 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1332 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1333 mono_mb_emit_stloc (mb, index_var);
1336 label2 = mono_mb_get_label (mb);
1337 mono_mb_emit_ldloc (mb, index_var);
1338 mono_mb_emit_ldloc (mb, array_var);
1339 mono_mb_emit_byte (mb, CEE_LDLEN);
1340 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1342 /* src is already set */
1345 mono_mb_emit_ldloc (mb, array_var);
1346 mono_mb_emit_ldloc (mb, index_var);
1347 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1348 mono_mb_emit_stloc (mb, 1);
1350 /* Do the conversion */
1351 emit_struct_conv (mb, eklass, TRUE);
1354 mono_mb_emit_add_to_local (mb, index_var, 1);
1356 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1358 mono_mb_patch_branch (mb, label3);
1360 /* restore the old src pointer */
1361 mono_mb_emit_ldloc (mb, src_var);
1362 mono_mb_emit_stloc (mb, 0);
1363 /* restore the old dst pointer */
1364 mono_mb_emit_ldloc (mb, dst_var);
1365 mono_mb_emit_stloc (mb, 1);
1369 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1370 MonoClass *eclass = mono_defaults.char_class;
1372 /* create a new array */
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1375 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1376 mono_mb_emit_byte (mb, CEE_STIND_REF);
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1382 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1385 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1386 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1387 mono_mb_emit_ldloc (mb, 1);
1388 mono_mb_emit_ldloc (mb, 0);
1389 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1390 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1392 mono_mb_emit_ldloc (mb, 1);
1393 mono_mb_emit_ldloc (mb, 0);
1394 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1396 mono_mb_emit_byte (mb, CEE_STIND_REF);
1398 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1399 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_ldloc (mb, 0);
1402 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1403 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_ldloc (mb, 0);
1407 mono_mb_emit_icall (mb, mono_string_from_utf16);
1409 mono_mb_emit_byte (mb, CEE_STIND_REF);
1411 case MONO_MARSHAL_CONV_STR_LPTSTR:
1412 mono_mb_emit_ldloc (mb, 1);
1413 mono_mb_emit_ldloc (mb, 0);
1414 mono_mb_emit_byte (mb, CEE_LDIND_I);
1416 mono_mb_emit_icall (mb, mono_string_from_utf16);
1418 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1420 mono_mb_emit_byte (mb, CEE_STIND_REF);
1422 case MONO_MARSHAL_CONV_STR_LPSTR:
1423 mono_mb_emit_ldloc (mb, 1);
1424 mono_mb_emit_ldloc (mb, 0);
1425 mono_mb_emit_byte (mb, CEE_LDIND_I);
1426 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 case MONO_MARSHAL_CONV_STR_LPWSTR:
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_byte (mb, CEE_LDIND_I);
1433 mono_mb_emit_icall (mb, mono_string_from_utf16);
1434 mono_mb_emit_byte (mb, CEE_STIND_REF);
1436 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1437 MonoClass *klass = mono_class_from_mono_type (type);
1438 int src_var, dst_var;
1440 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1441 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1443 /* *dst = new object */
1444 mono_mb_emit_ldloc (mb, 1);
1445 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1446 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 /* save the old src pointer */
1450 mono_mb_emit_ldloc (mb, 0);
1451 mono_mb_emit_stloc (mb, src_var);
1452 /* save the old dst pointer */
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_stloc (mb, dst_var);
1456 /* dst = pointer to newly created object data */
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_byte (mb, CEE_LDIND_I);
1459 mono_mb_emit_icon (mb, sizeof (MonoObject));
1460 mono_mb_emit_byte (mb, CEE_ADD);
1461 mono_mb_emit_stloc (mb, 1);
1463 emit_struct_conv (mb, klass, TRUE);
1465 /* restore the old src pointer */
1466 mono_mb_emit_ldloc (mb, src_var);
1467 mono_mb_emit_stloc (mb, 0);
1468 /* restore the old dst pointer */
1469 mono_mb_emit_ldloc (mb, dst_var);
1470 mono_mb_emit_stloc (mb, 1);
1473 case MONO_MARSHAL_CONV_DEL_FTN: {
1474 MonoClass *klass = mono_class_from_mono_type (type);
1476 mono_mb_emit_ldloc (mb, 1);
1477 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1478 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1479 mono_mb_emit_ldloc (mb, 0);
1480 mono_mb_emit_byte (mb, CEE_LDIND_I);
1481 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1482 mono_mb_emit_byte (mb, CEE_STIND_REF);
1485 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1486 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1490 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1491 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1492 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1493 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1495 #endif /* DISABLE_COM */
1497 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1499 * Passing SafeHandles as ref does not allow the unmanaged code
1500 * to change the SafeHandle value. If the value is changed,
1501 * we should issue a diagnostic exception (NotSupportedException)
1502 * that informs the user that changes to handles in unmanaged code
1505 * Since we currently have no access to the original
1506 * SafeHandle that was used during the marshalling,
1507 * for now we just ignore this, and ignore/discard any
1508 * changes that might have happened to the handle.
1513 case MONO_MARSHAL_CONV_HANDLEREF: {
1515 * Passing HandleRefs in a struct that is ref()ed does not
1516 * copy the values back to the HandleRef
1521 case MONO_MARSHAL_CONV_STR_BSTR:
1522 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1523 case MONO_MARSHAL_CONV_STR_TBSTR:
1524 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1526 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1528 mono_mb_emit_exception_marshal_directive (mb, msg);
1535 conv_to_icall (MonoMarshalConv conv)
1538 case MONO_MARSHAL_CONV_STR_LPWSTR:
1539 return mono_marshal_string_to_utf16;
1540 case MONO_MARSHAL_CONV_LPWSTR_STR:
1541 return mono_string_from_utf16;
1542 case MONO_MARSHAL_CONV_LPTSTR_STR:
1543 return mono_string_new_wrapper;
1544 case MONO_MARSHAL_CONV_LPSTR_STR:
1545 return mono_string_new_wrapper;
1546 case MONO_MARSHAL_CONV_STR_LPTSTR:
1548 return mono_marshal_string_to_utf16;
1550 return mono_string_to_lpstr;
1552 case MONO_MARSHAL_CONV_STR_LPSTR:
1553 return mono_string_to_lpstr;
1554 case MONO_MARSHAL_CONV_STR_BSTR:
1555 return mono_string_to_bstr;
1556 case MONO_MARSHAL_CONV_BSTR_STR:
1557 return mono_string_from_bstr;
1558 case MONO_MARSHAL_CONV_STR_TBSTR:
1559 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1560 return mono_string_to_ansibstr;
1561 case MONO_MARSHAL_CONV_SB_LPSTR:
1562 return mono_string_builder_to_utf8;
1563 case MONO_MARSHAL_CONV_SB_LPTSTR:
1565 return mono_string_builder_to_utf16;
1567 return mono_string_builder_to_utf8;
1569 case MONO_MARSHAL_CONV_SB_LPWSTR:
1570 return mono_string_builder_to_utf16;
1571 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1572 return mono_array_to_savearray;
1573 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1574 return mono_array_to_lparray;
1575 case MONO_MARSHAL_FREE_LPARRAY:
1576 return mono_free_lparray;
1577 case MONO_MARSHAL_CONV_DEL_FTN:
1578 return mono_delegate_to_ftnptr;
1579 case MONO_MARSHAL_CONV_FTN_DEL:
1580 return mono_ftnptr_to_delegate;
1581 case MONO_MARSHAL_CONV_LPSTR_SB:
1582 return mono_string_utf8_to_builder;
1583 case MONO_MARSHAL_CONV_LPTSTR_SB:
1585 return mono_string_utf16_to_builder;
1587 return mono_string_utf8_to_builder;
1589 case MONO_MARSHAL_CONV_LPWSTR_SB:
1590 return mono_string_utf16_to_builder;
1591 case MONO_MARSHAL_FREE_ARRAY:
1592 return mono_marshal_free_array;
1593 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1594 return mono_string_to_byvalstr;
1595 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1596 return mono_string_to_byvalwstr;
1598 g_assert_not_reached ();
1605 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1610 case MONO_MARSHAL_CONV_BOOL_I4:
1611 mono_mb_emit_ldloc (mb, 1);
1612 mono_mb_emit_ldloc (mb, 0);
1613 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1614 mono_mb_emit_byte (mb, CEE_STIND_I4);
1616 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1617 mono_mb_emit_ldloc (mb, 1);
1618 mono_mb_emit_ldloc (mb, 0);
1619 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1620 mono_mb_emit_byte (mb, CEE_NEG);
1621 mono_mb_emit_byte (mb, CEE_STIND_I2);
1623 case MONO_MARSHAL_CONV_STR_LPWSTR:
1624 case MONO_MARSHAL_CONV_STR_LPSTR:
1625 case MONO_MARSHAL_CONV_STR_LPTSTR:
1626 case MONO_MARSHAL_CONV_STR_BSTR:
1627 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1628 case MONO_MARSHAL_CONV_STR_TBSTR: {
1631 /* free space if free == true */
1632 mono_mb_emit_ldloc (mb, 2);
1633 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1634 mono_mb_emit_ldloc (mb, 1);
1635 mono_mb_emit_byte (mb, CEE_LDIND_I);
1636 mono_mb_emit_icall (mb, g_free);
1637 mono_mb_patch_short_branch (mb, pos);
1639 mono_mb_emit_ldloc (mb, 1);
1640 mono_mb_emit_ldloc (mb, 0);
1641 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1642 mono_mb_emit_icall (mb, conv_to_icall (conv));
1643 mono_mb_emit_byte (mb, CEE_STIND_I);
1646 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1647 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1648 case MONO_MARSHAL_CONV_DEL_FTN:
1649 mono_mb_emit_ldloc (mb, 1);
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1652 mono_mb_emit_icall (mb, conv_to_icall (conv));
1653 mono_mb_emit_byte (mb, CEE_STIND_I);
1655 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1656 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1659 mono_mb_emit_ldloc (mb, 1); /* dst */
1660 mono_mb_emit_ldloc (mb, 0);
1661 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1662 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1663 mono_mb_emit_icall (mb, conv_to_icall (conv));
1666 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1667 MonoClass *eklass = NULL;
1670 if (type->type == MONO_TYPE_SZARRAY) {
1671 eklass = type->data.klass;
1673 g_assert_not_reached ();
1676 if (eklass->valuetype)
1677 esize = mono_class_native_size (eklass, NULL);
1679 esize = sizeof (gpointer);
1681 mono_mb_emit_ldloc (mb, 0);
1682 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1683 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1685 if (eklass->blittable) {
1686 mono_mb_emit_ldloc (mb, 1);
1687 mono_mb_emit_ldloc (mb, 0);
1688 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1689 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1690 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1691 mono_mb_emit_byte (mb, CEE_PREFIX1);
1692 mono_mb_emit_byte (mb, CEE_CPBLK);
1694 int array_var, src_var, dst_var, index_var;
1695 guint32 label2, label3;
1697 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1698 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1699 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1702 mono_mb_emit_ldloc (mb, 0);
1703 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1704 mono_mb_emit_stloc (mb, array_var);
1706 /* save the old src pointer */
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_stloc (mb, src_var);
1709 /* save the old dst pointer */
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_stloc (mb, dst_var);
1713 /* Emit marshalling loop */
1714 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1715 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1716 mono_mb_emit_stloc (mb, index_var);
1719 label2 = mono_mb_get_label (mb);
1720 mono_mb_emit_ldloc (mb, index_var);
1721 mono_mb_emit_ldloc (mb, array_var);
1722 mono_mb_emit_byte (mb, CEE_LDLEN);
1723 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1726 mono_mb_emit_ldloc (mb, array_var);
1727 mono_mb_emit_ldloc (mb, index_var);
1728 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1729 mono_mb_emit_stloc (mb, 0);
1731 /* dst is already set */
1733 /* Do the conversion */
1734 emit_struct_conv (mb, eklass, FALSE);
1737 mono_mb_emit_add_to_local (mb, index_var, 1);
1739 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1741 mono_mb_patch_branch (mb, label3);
1743 /* restore the old src pointer */
1744 mono_mb_emit_ldloc (mb, src_var);
1745 mono_mb_emit_stloc (mb, 0);
1746 /* restore the old dst pointer */
1747 mono_mb_emit_ldloc (mb, dst_var);
1748 mono_mb_emit_stloc (mb, 1);
1751 mono_mb_patch_branch (mb, pos);
1754 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1757 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1759 mono_mb_emit_ldloc (mb, 1);
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1762 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1763 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1764 mono_mb_patch_short_branch (mb, pos);
1767 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1768 int src_var, dst_var;
1770 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1771 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_I);
1775 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1777 /* save the old src pointer */
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_stloc (mb, src_var);
1780 /* save the old dst pointer */
1781 mono_mb_emit_ldloc (mb, 1);
1782 mono_mb_emit_stloc (mb, dst_var);
1784 /* src = pointer to object data */
1785 mono_mb_emit_ldloc (mb, 0);
1786 mono_mb_emit_byte (mb, CEE_LDIND_I);
1787 mono_mb_emit_icon (mb, sizeof (MonoObject));
1788 mono_mb_emit_byte (mb, CEE_ADD);
1789 mono_mb_emit_stloc (mb, 0);
1791 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1793 /* restore the old src pointer */
1794 mono_mb_emit_ldloc (mb, src_var);
1795 mono_mb_emit_stloc (mb, 0);
1796 /* restore the old dst pointer */
1797 mono_mb_emit_ldloc (mb, dst_var);
1798 mono_mb_emit_stloc (mb, 1);
1800 mono_mb_patch_branch (mb, pos);
1805 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1806 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1807 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1808 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1810 #endif /* DISABLE_COM */
1812 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1815 mono_mb_emit_ldloc (mb, 0);
1816 mono_mb_emit_byte (mb, CEE_LDIND_I);
1817 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1818 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1819 mono_mb_patch_branch (mb, pos);
1821 /* Pull the handle field from SafeHandle */
1822 mono_mb_emit_ldloc (mb, 1);
1823 mono_mb_emit_ldloc (mb, 0);
1824 mono_mb_emit_byte (mb, CEE_LDIND_I);
1825 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1826 mono_mb_emit_byte (mb, CEE_LDIND_I);
1827 mono_mb_emit_byte (mb, CEE_STIND_I);
1831 case MONO_MARSHAL_CONV_HANDLEREF: {
1832 mono_mb_emit_ldloc (mb, 1);
1833 mono_mb_emit_ldloc (mb, 0);
1834 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1835 mono_mb_emit_byte (mb, CEE_ADD);
1836 mono_mb_emit_byte (mb, CEE_LDIND_I);
1837 mono_mb_emit_byte (mb, CEE_STIND_I);
1842 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1843 MonoException *exc = mono_get_exception_not_implemented (msg);
1844 g_warning ("%s", msg);
1846 mono_raise_exception (exc);
1852 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1853 MonoMarshalNative string_encoding)
1855 MonoMarshalType *info;
1859 emit_struct_conv(mb, klass->parent, to_object);
1861 info = mono_marshal_load_type_info (klass);
1863 if (info->native_size == 0)
1866 if (klass->blittable) {
1867 int msize = mono_class_value_size (klass, NULL);
1868 g_assert (msize == info->native_size);
1869 mono_mb_emit_ldloc (mb, 1);
1870 mono_mb_emit_ldloc (mb, 0);
1871 mono_mb_emit_icon (mb, msize);
1872 mono_mb_emit_byte (mb, CEE_PREFIX1);
1873 mono_mb_emit_byte (mb, CEE_CPBLK);
1875 mono_mb_emit_add_to_local (mb, 0, msize);
1876 mono_mb_emit_add_to_local (mb, 1, msize);
1880 if (klass != mono_class_try_get_safehandle_class ()) {
1881 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1882 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1883 mono_type_full_name (&klass->byval_arg));
1884 mono_mb_emit_exception_marshal_directive (mb, msg);
1889 for (i = 0; i < info->num_fields; i++) {
1890 MonoMarshalNative ntype;
1891 MonoMarshalConv conv;
1892 MonoType *ftype = info->fields [i].field->type;
1895 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1897 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1900 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1903 msize = klass->instance_size - info->fields [i].field->offset;
1904 usize = info->native_size - info->fields [i].offset;
1906 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1907 usize = info->fields [i + 1].offset - info->fields [i].offset;
1910 if (klass != mono_class_try_get_safehandle_class ()){
1912 * FIXME: Should really check for usize==0 and msize>0, but we apply
1913 * the layout to the managed structure as well.
1916 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1917 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1918 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1919 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1920 "reference field at the same offset as another field.",
1921 mono_type_full_name (&klass->byval_arg));
1926 case MONO_MARSHAL_CONV_NONE: {
1929 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1930 ftype->type == MONO_TYPE_U) {
1931 mono_mb_emit_ldloc (mb, 1);
1932 mono_mb_emit_ldloc (mb, 0);
1933 mono_mb_emit_byte (mb, CEE_LDIND_I);
1934 mono_mb_emit_byte (mb, CEE_STIND_I);
1945 case MONO_TYPE_BOOLEAN:
1948 case MONO_TYPE_CHAR:
1954 mono_mb_emit_ldloc (mb, 1);
1955 mono_mb_emit_ldloc (mb, 0);
1956 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1958 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1959 mono_mb_emit_byte (mb, CEE_STIND_I2);
1961 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1962 mono_mb_emit_byte (mb, CEE_STIND_I1);
1965 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1966 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1969 case MONO_TYPE_VALUETYPE: {
1970 int src_var, dst_var;
1972 if (ftype->data.klass->enumtype) {
1973 ftype = mono_class_enum_basetype (ftype->data.klass);
1977 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1978 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1980 /* save the old src pointer */
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_stloc (mb, src_var);
1983 /* save the old dst pointer */
1984 mono_mb_emit_ldloc (mb, 1);
1985 mono_mb_emit_stloc (mb, dst_var);
1987 emit_struct_conv (mb, ftype->data.klass, to_object);
1989 /* restore the old src pointer */
1990 mono_mb_emit_ldloc (mb, src_var);
1991 mono_mb_emit_stloc (mb, 0);
1992 /* restore the old dst pointer */
1993 mono_mb_emit_ldloc (mb, dst_var);
1994 mono_mb_emit_stloc (mb, 1);
1997 case MONO_TYPE_OBJECT: {
2000 static MonoMethod *variant_clear = NULL;
2001 static MonoMethod *get_object_for_native_variant = NULL;
2004 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2005 if (!get_object_for_native_variant)
2006 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2007 mono_mb_emit_ldloc (mb, 1);
2008 mono_mb_emit_ldloc (mb, 0);
2009 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2010 mono_mb_emit_byte (mb, CEE_STIND_REF);
2012 mono_mb_emit_ldloc (mb, 0);
2013 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2016 static MonoMethod *get_native_variant_for_object = NULL;
2018 if (!get_native_variant_for_object)
2019 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2021 mono_mb_emit_ldloc (mb, 0);
2022 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2023 mono_mb_emit_ldloc (mb, 1);
2024 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2027 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2028 mono_mb_emit_exception_marshal_directive (mb, msg);
2034 g_warning ("marshaling type %02x not implemented", ftype->type);
2035 g_assert_not_reached ();
2040 int src_var, dst_var;
2042 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2043 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2045 /* save the old src pointer */
2046 mono_mb_emit_ldloc (mb, 0);
2047 mono_mb_emit_stloc (mb, src_var);
2048 /* save the old dst pointer */
2049 mono_mb_emit_ldloc (mb, 1);
2050 mono_mb_emit_stloc (mb, dst_var);
2053 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2055 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2057 /* restore the old src pointer */
2058 mono_mb_emit_ldloc (mb, src_var);
2059 mono_mb_emit_stloc (mb, 0);
2060 /* restore the old dst pointer */
2061 mono_mb_emit_ldloc (mb, dst_var);
2062 mono_mb_emit_stloc (mb, 1);
2067 mono_mb_emit_add_to_local (mb, 0, usize);
2068 mono_mb_emit_add_to_local (mb, 1, msize);
2070 mono_mb_emit_add_to_local (mb, 0, msize);
2071 mono_mb_emit_add_to_local (mb, 1, usize);
2077 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2079 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2083 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2085 /* Call DestroyStructure */
2086 /* FIXME: Only do this if needed */
2087 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2088 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2089 mono_mb_emit_ldloc (mb, struct_var);
2090 mono_mb_emit_icall (mb, mono_struct_delete_old);
2094 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2096 int pos_noabort, pos_noex;
2098 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2099 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2100 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2101 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2103 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2104 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2106 mono_mb_emit_icall (mb, checkpoint_func);
2107 /* Throw the exception returned by the checkpoint function, if any */
2108 mono_mb_emit_byte (mb, CEE_DUP);
2109 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2110 mono_mb_emit_byte (mb, CEE_THROW);
2111 mono_mb_patch_branch (mb, pos_noex);
2112 mono_mb_emit_byte (mb, CEE_POP);
2114 mono_mb_patch_branch (mb, pos_noabort);
2118 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2120 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2123 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2127 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2129 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2133 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2135 emit_thread_interrupt_checkpoint (mb);
2139 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2141 emit_thread_force_interrupt_checkpoint (mb);
2144 #endif /* DISABLE_JIT */
2146 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2147 static MonoAsyncResult *
2148 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2151 MonoMulticastDelegate *mcast_delegate;
2155 g_assert (delegate);
2156 mcast_delegate = (MonoMulticastDelegate *) delegate;
2157 if (mcast_delegate->delegates != NULL) {
2158 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2162 #ifndef DISABLE_REMOTING
2163 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2164 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2165 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2166 /* If the target is a proxy, make a direct call. Is proxy's work
2167 // to make the call asynchronous.
2169 MonoMethodMessage *msg;
2170 MonoDelegate *async_callback;
2172 MonoAsyncResult *ares;
2174 MonoArray *out_args;
2175 method = delegate->method;
2177 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2178 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2179 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2180 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2181 MONO_OBJECT_SETREF (msg, async_result, ares);
2182 msg->call_type = CallType_BeginInvoke;
2185 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2186 if (!mono_error_ok (&error)) {
2187 mono_error_set_pending_exception (&error);
2191 mono_set_pending_exception ((MonoException *) exc);
2197 klass = delegate->object.vtable->klass;
2199 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2201 method = mono_get_delegate_invoke (klass);
2204 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2210 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2212 int i, params_var, tmp_var;
2214 /* allocate local (pointer) *params[] */
2215 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2216 /* allocate local (pointer) tmp */
2217 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2219 /* alloate space on stack to store an array of pointers to the arguments */
2220 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2221 mono_mb_emit_byte (mb, CEE_PREFIX1);
2222 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2223 mono_mb_emit_stloc (mb, params_var);
2226 mono_mb_emit_ldloc (mb, params_var);
2227 mono_mb_emit_stloc (mb, tmp_var);
2229 if (save_this && sig->hasthis) {
2230 mono_mb_emit_ldloc (mb, tmp_var);
2231 mono_mb_emit_ldarg_addr (mb, 0);
2232 mono_mb_emit_byte (mb, CEE_STIND_I);
2233 /* tmp = tmp + sizeof (gpointer) */
2234 if (sig->param_count)
2235 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2239 for (i = 0; i < sig->param_count; i++) {
2240 mono_mb_emit_ldloc (mb, tmp_var);
2241 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2242 mono_mb_emit_byte (mb, CEE_STIND_I);
2243 /* tmp = tmp + sizeof (gpointer) */
2244 if (i < (sig->param_count - 1))
2245 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2251 #endif /* DISABLE_JIT */
2254 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2258 GString *res = g_string_new ("");
2261 g_string_append (res, prefix);
2262 g_string_append_c (res, '_');
2265 mono_type_get_desc (res, sig->ret, FALSE);
2268 g_string_append (res, "__this__");
2270 for (i = 0; i < sig->param_count; ++i) {
2271 g_string_append_c (res, '_');
2272 mono_type_get_desc (res, sig->params [i], FALSE);
2275 g_string_free (res, FALSE);
2280 * mono_marshal_get_string_encoding:
2282 * Return the string encoding which should be used for a given parameter.
2284 static MonoMarshalNative
2285 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2287 /* First try the parameter marshal info */
2289 if (spec->native == MONO_NATIVE_LPARRAY) {
2290 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2291 return spec->data.array_data.elem_type;
2294 return spec->native;
2298 return MONO_NATIVE_LPSTR;
2300 /* Then try the method level marshal info */
2301 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2302 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2303 return MONO_NATIVE_LPSTR;
2304 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2305 return MONO_NATIVE_LPWSTR;
2306 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2308 return MONO_NATIVE_LPWSTR;
2310 return MONO_NATIVE_LPSTR;
2313 return MONO_NATIVE_LPSTR;
2317 static MonoMarshalConv
2318 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2320 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2323 case MONO_NATIVE_LPWSTR:
2324 return MONO_MARSHAL_CONV_STR_LPWSTR;
2325 case MONO_NATIVE_LPSTR:
2326 case MONO_NATIVE_VBBYREFSTR:
2327 return MONO_MARSHAL_CONV_STR_LPSTR;
2328 case MONO_NATIVE_LPTSTR:
2329 return MONO_MARSHAL_CONV_STR_LPTSTR;
2330 case MONO_NATIVE_BSTR:
2331 return MONO_MARSHAL_CONV_STR_BSTR;
2333 return (MonoMarshalConv)-1;
2337 static MonoMarshalConv
2338 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2340 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2343 case MONO_NATIVE_LPWSTR:
2344 return MONO_MARSHAL_CONV_SB_LPWSTR;
2346 case MONO_NATIVE_LPSTR:
2347 return MONO_MARSHAL_CONV_SB_LPSTR;
2349 case MONO_NATIVE_LPTSTR:
2350 return MONO_MARSHAL_CONV_SB_LPTSTR;
2353 return (MonoMarshalConv)-1;
2357 static MonoMarshalConv
2358 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2360 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2365 case MONO_NATIVE_LPWSTR:
2367 return MONO_MARSHAL_CONV_LPWSTR_STR;
2368 case MONO_NATIVE_LPSTR:
2369 case MONO_NATIVE_VBBYREFSTR:
2370 return MONO_MARSHAL_CONV_LPSTR_STR;
2371 case MONO_NATIVE_LPTSTR:
2372 return MONO_MARSHAL_CONV_LPTSTR_STR;
2373 case MONO_NATIVE_BSTR:
2374 return MONO_MARSHAL_CONV_BSTR_STR;
2376 return (MonoMarshalConv)-1;
2380 static MonoMarshalConv
2381 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2383 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2388 case MONO_NATIVE_LPWSTR:
2390 * mono_string_builder_to_utf16 does not allocate a
2391 * new buffer, so no need to free it.
2394 return MONO_MARSHAL_CONV_LPWSTR_SB;
2395 case MONO_NATIVE_LPSTR:
2396 return MONO_MARSHAL_CONV_LPSTR_SB;
2398 case MONO_NATIVE_LPTSTR:
2399 return MONO_MARSHAL_CONV_LPTSTR_SB;
2402 return (MonoMarshalConv)-1;
2407 * Return whenever a field of a native structure or an array member needs to
2411 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2413 MonoMarshalNative encoding;
2416 case MONO_TYPE_VALUETYPE:
2417 /* FIXME: Optimize this */
2419 case MONO_TYPE_OBJECT:
2420 case MONO_TYPE_CLASS:
2421 if (t->data.klass == mono_defaults.stringbuilder_class) {
2423 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2427 case MONO_TYPE_STRING:
2428 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2429 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2436 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2439 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2442 mono_marshal_lock ();
2445 g_hash_table_new (hash_func, equal_func);
2446 mono_memory_barrier ();
2449 mono_marshal_unlock ();
2455 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2457 return get_cache (var, hash_func, equal_func);
2461 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2465 mono_marshal_lock ();
2466 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2467 mono_marshal_unlock ();
2474 * Create a MonoMethod from MB, set INFO as wrapper info.
2477 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2478 int max_stack, WrapperInfo *info)
2482 res = mono_mb_create_method (mb, sig, max_stack);
2484 mono_marshal_set_wrapper_info (res, info);
2488 /* Create the method from the builder and place it in the cache */
2490 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2491 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2492 int max_stack, WrapperInfo *info, gboolean *out_found)
2499 mono_marshal_lock ();
2500 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2501 mono_marshal_unlock ();
2504 newm = mono_mb_create_method (mb, sig, max_stack);
2505 mono_marshal_lock ();
2506 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2509 g_hash_table_insert (cache, key, res);
2510 mono_marshal_set_wrapper_info (res, info);
2511 mono_marshal_unlock ();
2515 mono_marshal_unlock ();
2516 mono_free_method (newm);
2524 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2525 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2528 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2532 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2535 int wrapper_type = wrapper->wrapper_type;
2538 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2541 info = mono_marshal_get_wrapper_info (wrapper);
2543 switch (wrapper_type) {
2544 case MONO_WRAPPER_REMOTING_INVOKE:
2545 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2546 case MONO_WRAPPER_XDOMAIN_INVOKE:
2547 m = info->d.remoting.method;
2548 if (wrapper->is_inflated) {
2552 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2553 * contains an uninflated method.
2555 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2556 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2560 case MONO_WRAPPER_SYNCHRONIZED:
2561 m = info->d.synchronized.method;
2562 if (wrapper->is_inflated) {
2565 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2566 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2570 case MONO_WRAPPER_UNBOX:
2571 return info->d.unbox.method;
2572 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2573 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2574 return info->d.managed_to_native.method;
2577 case MONO_WRAPPER_RUNTIME_INVOKE:
2578 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2579 return info->d.runtime_invoke.method;
2588 * mono_marshal_get_wrapper_info:
2590 * Retrieve the WrapperInfo structure associated with WRAPPER.
2593 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2595 g_assert (wrapper->wrapper_type);
2597 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2601 * mono_marshal_set_wrapper_info:
2603 * Set the WrapperInfo structure associated with the wrapper
2604 * method METHOD to INFO.
2607 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2611 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2614 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2619 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2623 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2624 info->subtype = subtype;
2629 * get_wrapper_target_class:
2631 * Return the class where a wrapper method should be placed.
2634 get_wrapper_target_class (MonoImage *image)
2641 * - can't put all wrappers into an mscorlib class, because they reference
2642 * metadata (signature) so they should be put into the same image as the
2643 * method they wrap, so they are unloaded together.
2644 * - putting them into a class with a type initalizer could cause the
2645 * initializer to be executed which can be a problem if the wrappers are
2647 * - putting them into an inflated class can cause problems if the the
2648 * class is deleted because it references an image which is unloaded.
2649 * To avoid these problems, we put the wrappers into the <Module> class of
2652 if (image_is_dynamic (image)) {
2653 klass = ((MonoDynamicImage*)image)->wrappers_type;
2655 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2656 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2664 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2665 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2669 * check_generic_wrapper_cache:
2671 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2672 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2673 * generic method definition.
2676 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2679 MonoMethod *inst, *def;
2680 MonoGenericContext *ctx;
2682 g_assert (orig_method->is_inflated);
2683 ctx = mono_method_get_context (orig_method);
2686 * Look for the instance
2688 res = mono_marshal_find_in_cache (cache, key);
2693 * Look for the definition
2695 def = mono_marshal_find_in_cache (cache, def_key);
2698 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2699 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2701 mono_memory_barrier ();
2702 mono_marshal_lock ();
2703 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2705 g_hash_table_insert (cache, key, inst);
2708 mono_marshal_unlock ();
2715 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2718 MonoMethod *inst, *res;
2721 * We use the same cache for the generic definition and the instances.
2723 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2724 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2725 mono_memory_barrier ();
2726 mono_marshal_lock ();
2727 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2729 g_hash_table_insert (cache, key, inst);
2732 mono_marshal_unlock ();
2737 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2741 MonoMethod *inst, *def;
2744 * Look for the instance
2746 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2751 * Look for the definition
2753 def = mono_marshal_find_in_cache (cache, def_method->klass);
2755 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2756 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2759 mono_memory_barrier ();
2760 mono_marshal_lock ();
2761 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2763 g_hash_table_insert (cache, orig_method->klass, inst);
2766 mono_marshal_unlock ();
2773 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2776 MonoMethod *inst, *res;
2779 * We use the same cache for the generic definition and the instances.
2781 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2782 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2784 mono_memory_barrier ();
2785 mono_marshal_lock ();
2786 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2788 g_hash_table_insert (cache, orig_method->klass, inst);
2791 mono_marshal_unlock ();
2796 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2798 MonoMethodSignature *sig;
2799 MonoMethodBuilder *mb;
2804 MonoGenericContext *ctx = NULL;
2805 MonoMethod *orig_method = NULL;
2807 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2808 !strcmp (method->name, "BeginInvoke"));
2811 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2813 if (method->is_inflated) {
2814 orig_method = method;
2815 ctx = &((MonoMethodInflated*)method)->context;
2816 method = ((MonoMethodInflated*)method)->declaring;
2819 sig = mono_signature_no_pinvoke (method);
2825 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2826 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2830 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2831 (GHashFunc)mono_signature_hash,
2832 (GCompareFunc)mono_metadata_signature_equal);
2833 if ((res = mono_marshal_find_in_cache (cache, sig)))
2837 g_assert (sig->hasthis);
2839 name = mono_signature_to_name (sig, "begin_invoke");
2841 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2843 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2847 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2849 mono_mb_emit_ldarg (mb, 0);
2850 mono_mb_emit_ldloc (mb, params_var);
2851 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2852 mono_mb_emit_byte (mb, CEE_RET);
2857 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2858 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2860 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2867 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2869 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2872 MonoDomain *domain = mono_domain_get ();
2873 MonoAsyncResult *ares;
2874 MonoMethod *method = NULL;
2875 MonoMethodSignature *sig;
2876 MonoMethodMessage *msg;
2877 MonoObject *res, *exc;
2878 MonoArray *out_args;
2881 g_assert (delegate);
2883 if (!delegate->method_info) {
2884 g_assert (delegate->method);
2885 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2886 if (!mono_error_ok (&error)) {
2887 mono_error_set_pending_exception (&error);
2890 MONO_OBJECT_SETREF (delegate, method_info, rm);
2893 if (!delegate->method_info || !delegate->method_info->method)
2894 g_assert_not_reached ();
2896 klass = delegate->object.vtable->klass;
2898 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2899 g_assert (method != NULL);
2901 sig = mono_signature_no_pinvoke (method);
2903 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2905 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2907 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."));
2911 if (ares->async_delegate != (MonoObject*)delegate) {
2912 mono_set_pending_exception (mono_get_exception_invalid_operation (
2913 "The IAsyncResult object provided does not match this delegate."));
2917 #ifndef DISABLE_REMOTING
2918 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2919 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2920 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2921 if (!mono_error_ok (&error)) {
2922 mono_error_set_pending_exception (&error);
2925 mono_message_init (domain, msg, delegate->method_info, NULL);
2926 msg->call_type = CallType_EndInvoke;
2927 MONO_OBJECT_SETREF (msg, async_result, ares);
2928 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2929 if (!mono_error_ok (&error)) {
2930 mono_error_set_pending_exception (&error);
2936 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2940 if (((MonoException*)exc)->stack_trace) {
2941 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2943 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2945 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2948 mono_set_pending_exception ((MonoException*)exc);
2951 mono_method_return_message_restore (method, params, out_args);
2958 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2960 MonoType *t = mono_type_get_underlying_type (return_type);
2962 if (return_type->byref)
2963 return_type = &mono_defaults.int_class->byval_arg;
2966 case MONO_TYPE_VOID:
2967 g_assert_not_reached ();
2970 case MONO_TYPE_STRING:
2971 case MONO_TYPE_CLASS:
2972 case MONO_TYPE_OBJECT:
2973 case MONO_TYPE_ARRAY:
2974 case MONO_TYPE_SZARRAY:
2978 case MONO_TYPE_BOOLEAN:
2981 case MONO_TYPE_CHAR:
2991 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2992 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2994 case MONO_TYPE_GENERICINST:
2995 if (!mono_type_generic_inst_is_valuetype (t))
2998 case MONO_TYPE_VALUETYPE: {
2999 MonoClass *klass = mono_class_from_mono_type (return_type);
3000 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3001 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3005 case MONO_TYPE_MVAR: {
3006 MonoClass *klass = mono_class_from_mono_type (return_type);
3007 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3011 g_warning ("type 0x%x not handled", return_type->type);
3012 g_assert_not_reached ();
3015 mono_mb_emit_byte (mb, CEE_RET);
3018 #endif /* DISABLE_JIT */
3021 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3023 MonoMethodSignature *sig;
3024 MonoMethodBuilder *mb;
3029 MonoGenericContext *ctx = NULL;
3030 MonoMethod *orig_method = NULL;
3032 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3033 !strcmp (method->name, "EndInvoke"));
3036 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3038 if (method->is_inflated) {
3039 orig_method = method;
3040 ctx = &((MonoMethodInflated*)method)->context;
3041 method = ((MonoMethodInflated*)method)->declaring;
3044 sig = mono_signature_no_pinvoke (method);
3050 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3051 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3055 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3056 (GHashFunc)mono_signature_hash,
3057 (GCompareFunc)mono_metadata_signature_equal);
3058 if ((res = mono_marshal_find_in_cache (cache, sig)))
3062 g_assert (sig->hasthis);
3064 name = mono_signature_to_name (sig, "end_invoke");
3066 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3068 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3072 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3074 mono_mb_emit_ldarg (mb, 0);
3075 mono_mb_emit_ldloc (mb, params_var);
3076 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3078 if (sig->ret->type == MONO_TYPE_VOID) {
3079 mono_mb_emit_byte (mb, CEE_POP);
3080 mono_mb_emit_byte (mb, CEE_RET);
3082 mono_mb_emit_restore_result (mb, sig->ret);
3087 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3088 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3090 res = mono_mb_create_and_cache (cache, sig,
3091 mb, sig, sig->param_count + 16);
3100 MonoMethodSignature *sig;
3102 } SignaturePointerPair;
3105 signature_pointer_pair_hash (gconstpointer data)
3107 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3109 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3113 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3115 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3116 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3120 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3122 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3124 return pair->pointer == user_data;
3128 free_signature_pointer_pair (SignaturePointerPair *pair)
3134 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3136 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3138 MonoMethodBuilder *mb;
3141 gpointer cache_key = NULL;
3142 SignaturePointerPair key;
3143 SignaturePointerPair *new_key;
3144 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3145 int pos0, pos1, pos2;
3147 MonoClass *target_class = NULL;
3148 gboolean closed_over_null = FALSE;
3149 MonoGenericContext *ctx = NULL;
3150 MonoGenericContainer *container = NULL;
3151 MonoMethod *orig_method = NULL;
3153 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3157 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3158 !strcmp (method->name, "Invoke"));
3160 invoke_sig = sig = mono_signature_no_pinvoke (method);
3163 * If the delegate target is null, and the target method is not static, a virtual
3164 * call is made to that method with the first delegate argument as this. This is
3165 * a non-documented .NET feature.
3168 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3169 if (target_method->is_inflated) {
3170 MonoType *target_type;
3172 g_assert (method->signature->hasthis);
3173 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3174 mono_method_get_context (method));
3175 target_class = mono_class_from_mono_type (target_type);
3177 target_class = target_method->klass;
3180 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3183 if (static_method_with_first_arg_bound) {
3184 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3185 g_assert (!callvirt);
3186 invoke_sig = mono_method_signature (target_method);
3190 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3192 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3193 orig_method = method;
3194 ctx = &((MonoMethodInflated*)method)->context;
3195 method = ((MonoMethodInflated*)method)->declaring;
3197 container = mono_method_get_generic_container (method);
3199 container = method->klass->generic_container;
3200 g_assert (container);
3202 invoke_sig = sig = mono_signature_no_pinvoke (method);
3209 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3210 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3213 cache_key = method->klass;
3214 } else if (static_method_with_first_arg_bound) {
3215 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3216 (GHashFunc)mono_signature_hash,
3217 (GCompareFunc)mono_metadata_signature_equal);
3219 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3221 res = mono_marshal_find_in_cache (cache, invoke_sig);
3224 cache_key = invoke_sig;
3225 } else if (callvirt) {
3226 GHashTable **cache_ptr;
3228 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3230 /* We need to cache the signature+method pair */
3231 mono_marshal_lock ();
3233 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3235 key.sig = invoke_sig;
3236 key.pointer = target_method;
3237 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3238 mono_marshal_unlock ();
3242 // Inflated methods should not be in this cache because it's not stored on the imageset.
3243 g_assert (!method->is_inflated);
3244 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3245 (GHashFunc)mono_signature_hash,
3246 (GCompareFunc)mono_metadata_signature_equal);
3247 res = mono_marshal_find_in_cache (cache, sig);
3253 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3254 static_sig->hasthis = 0;
3255 if (!static_method_with_first_arg_bound)
3256 invoke_sig = static_sig;
3258 if (static_method_with_first_arg_bound)
3259 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3260 else if (closed_over_null)
3261 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3263 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3265 name = mono_signature_to_name (invoke_sig, "invoke");
3267 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3269 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3273 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3275 /* allocate local 0 (object) */
3276 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3277 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3278 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3279 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3280 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3283 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3285 g_assert (sig->hasthis);
3288 * {type: sig->ret} res;
3289 * if (delegates == null) {
3290 * return this.<target> ( args .. );
3292 * int i = 0, len = this.delegates.Length;
3294 * res = this.delegates [i].Invoke ( args .. );
3295 * } while (++i < len);
3300 /* this wrapper can be used in unmanaged-managed transitions */
3301 emit_thread_interrupt_checkpoint (mb);
3303 /* delegates = this.delegates */
3304 mono_mb_emit_ldarg (mb, 0);
3305 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3306 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3307 mono_mb_emit_stloc (mb, local_delegates);
3310 /* if (delegates == null) */
3311 mono_mb_emit_ldloc (mb, local_delegates);
3312 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3314 /* return target.<target_method|method_ptr> ( args .. ); */
3316 /* target = d.target; */
3317 mono_mb_emit_ldarg (mb, 0);
3318 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3319 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3320 mono_mb_emit_stloc (mb, local_target);
3322 /*static methods with bound first arg can have null target and still be bound*/
3323 if (!static_method_with_first_arg_bound) {
3324 /* if target != null */
3325 mono_mb_emit_ldloc (mb, local_target);
3326 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3328 /* then call this->method_ptr nonstatic */
3331 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3333 mono_mb_emit_ldloc (mb, local_target);
3334 for (i = 0; i < sig->param_count; ++i)
3335 mono_mb_emit_ldarg (mb, i + 1);
3336 mono_mb_emit_ldarg (mb, 0);
3337 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3338 mono_mb_emit_byte (mb, CEE_LDIND_I);
3339 mono_mb_emit_ldarg (mb, 0);
3340 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3341 mono_mb_emit_byte (mb, CEE_LDIND_I);
3342 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3343 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3344 mono_mb_emit_byte (mb, CEE_RET);
3347 /* else [target == null] call this->method_ptr static */
3348 mono_mb_patch_branch (mb, pos0);
3352 if (!closed_over_null) {
3353 if (target_class->valuetype) {
3354 mono_mb_emit_ldarg (mb, 1);
3355 for (i = 1; i < sig->param_count; ++i)
3356 mono_mb_emit_ldarg (mb, i + 1);
3357 mono_mb_emit_op (mb, CEE_CALL, target_method);
3359 mono_mb_emit_ldarg (mb, 1);
3360 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3361 for (i = 1; i < sig->param_count; ++i)
3362 mono_mb_emit_ldarg (mb, i + 1);
3363 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3366 mono_mb_emit_byte (mb, CEE_LDNULL);
3367 for (i = 0; i < sig->param_count; ++i)
3368 mono_mb_emit_ldarg (mb, i + 1);
3369 mono_mb_emit_op (mb, CEE_CALL, target_method);
3372 if (static_method_with_first_arg_bound) {
3373 mono_mb_emit_ldloc (mb, local_target);
3374 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3375 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3377 for (i = 0; i < sig->param_count; ++i)
3378 mono_mb_emit_ldarg (mb, i + 1);
3379 mono_mb_emit_ldarg (mb, 0);
3380 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3381 mono_mb_emit_byte (mb, CEE_LDIND_I);
3382 mono_mb_emit_ldarg (mb, 0);
3383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3384 mono_mb_emit_byte (mb, CEE_LDIND_I);
3385 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3386 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3389 mono_mb_emit_byte (mb, CEE_RET);
3391 /* else [delegates != null] */
3392 mono_mb_patch_branch (mb, pos2);
3394 /* len = delegates.Length; */
3395 mono_mb_emit_ldloc (mb, local_delegates);
3396 mono_mb_emit_byte (mb, CEE_LDLEN);
3397 mono_mb_emit_byte (mb, CEE_CONV_I4);
3398 mono_mb_emit_stloc (mb, local_len);
3401 mono_mb_emit_icon (mb, 0);
3402 mono_mb_emit_stloc (mb, local_i);
3404 pos1 = mono_mb_get_label (mb);
3406 /* d = delegates [i]; */
3407 mono_mb_emit_ldloc (mb, local_delegates);
3408 mono_mb_emit_ldloc (mb, local_i);
3409 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3410 mono_mb_emit_stloc (mb, local_d);
3412 /* res = d.Invoke ( args .. ); */
3413 mono_mb_emit_ldloc (mb, local_d);
3414 for (i = 0; i < sig->param_count; i++)
3415 mono_mb_emit_ldarg (mb, i + 1);
3417 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3420 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3421 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3424 mono_mb_emit_stloc (mb, local_res);
3427 mono_mb_emit_add_to_local (mb, local_i, 1);
3430 mono_mb_emit_ldloc (mb, local_i);
3431 mono_mb_emit_ldloc (mb, local_len);
3432 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3436 mono_mb_emit_ldloc (mb, local_res);
3437 mono_mb_emit_byte (mb, CEE_RET);
3439 mb->skip_visibility = 1;
3440 #endif /* DISABLE_JIT */
3442 info = mono_wrapper_info_create (mb, subtype);
3447 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3448 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3449 } else if (callvirt) {
3450 new_key = g_new0 (SignaturePointerPair, 1);
3453 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3457 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3461 /* mono_method_print_code (res); */
3467 * the returned method invokes all methods in a multicast delegate.
3470 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3472 gboolean callvirt = FALSE;
3473 gboolean static_method_with_first_arg_bound = FALSE;
3474 MonoMethod *target_method = NULL;
3475 MonoMethodSignature *sig;
3477 sig = mono_signature_no_pinvoke (method);
3479 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3481 target_method = del->method;
3484 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3485 static_method_with_first_arg_bound = TRUE;
3486 target_method = del->method;
3489 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3493 MonoMethodSignature *ctor_sig;
3494 MonoMethodSignature *sig;
3497 /* protected by the marshal lock, contains CtorSigPair pointers */
3498 static GSList *strsig_list = NULL;
3500 static MonoMethodSignature *
3501 lookup_string_ctor_signature (MonoMethodSignature *sig)
3503 MonoMethodSignature *callsig;
3507 mono_marshal_lock ();
3509 for (item = strsig_list; item; item = item->next) {
3510 cs = (CtorSigPair *)item->data;
3511 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3512 * because it is lock-free.
3514 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3519 mono_marshal_unlock ();
3523 static MonoMethodSignature *
3524 add_string_ctor_signature (MonoMethod *method)
3526 MonoMethodSignature *callsig;
3529 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3530 callsig->ret = &mono_defaults.string_class->byval_arg;
3531 cs = g_new (CtorSigPair, 1);
3533 cs->ctor_sig = mono_method_signature (method);
3535 mono_marshal_lock ();
3536 strsig_list = g_slist_prepend (strsig_list, cs);
3537 mono_marshal_unlock ();
3542 * mono_marshal_get_string_ctor_signature:
3544 * Return the modified signature used by string ctors (they return the newly created
3547 MonoMethodSignature*
3548 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3550 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3552 sig = add_string_ctor_signature (method);
3558 get_runtime_invoke_type (MonoType *t, gboolean ret)
3561 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3563 /* Can't share this with 'I' as that needs another indirection */
3564 return &mono_defaults.int_class->this_arg;
3567 if (MONO_TYPE_IS_REFERENCE (t))
3568 return &mono_defaults.object_class->byval_arg;
3571 /* The result needs to be boxed */
3576 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3579 return &mono_defaults.sbyte_class->byval_arg;
3581 return &mono_defaults.int16_class->byval_arg;
3583 return &mono_defaults.int32_class->byval_arg;
3586 return &mono_defaults.int64_class->byval_arg;
3587 case MONO_TYPE_BOOLEAN:
3588 return &mono_defaults.byte_class->byval_arg;
3589 case MONO_TYPE_CHAR:
3590 return &mono_defaults.uint16_class->byval_arg;
3592 return &mono_defaults.int_class->byval_arg;
3593 case MONO_TYPE_VALUETYPE:
3594 if (t->data.klass->enumtype) {
3595 t = mono_class_enum_basetype (t->data.klass);
3605 * mono_marshal_get_runtime_invoke_sig:
3607 * Return a common signature used for sharing runtime invoke wrappers.
3609 static MonoMethodSignature*
3610 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3612 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3615 res->generic_param_count = 0;
3616 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3617 for (i = 0; i < res->param_count; ++i)
3618 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3624 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3626 /* Can't share wrappers which return a vtype since it needs to be boxed */
3627 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))
3630 return mono_metadata_signature_equal (sig1, sig2);
3638 * Emit the call to the wrapper method from a runtime invoke wrapper.
3641 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3642 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3644 gboolean virtual_, gboolean need_direct_wrapper)
3646 static MonoString *string_dummy = NULL;
3648 int *tmp_nullable_locals;
3649 gboolean void_ret = FALSE;
3650 gboolean string_ctor = method && method->string_ctor;
3652 /* to make it work with our special string constructors */
3653 if (!string_dummy) {
3654 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3655 string_dummy = mono_string_new_wrapper ("dummy");
3659 g_assert (sig->hasthis);
3660 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3665 if (mono_gc_is_moving ()) {
3666 mono_mb_emit_ptr (mb, &string_dummy);
3667 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3669 mono_mb_emit_ptr (mb, string_dummy);
3672 mono_mb_emit_ldarg (mb, 0);
3676 tmp_nullable_locals = g_new0 (int, sig->param_count);
3678 for (i = 0; i < sig->param_count; i++) {
3679 MonoType *t = sig->params [i];
3682 mono_mb_emit_ldarg (mb, 1);
3684 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3685 mono_mb_emit_byte (mb, CEE_ADD);
3689 mono_mb_emit_byte (mb, CEE_LDIND_I);
3690 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3691 * So to make this work we unbox it to a local variablee and push a reference to that.
3693 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3694 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3696 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3697 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3698 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3703 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3704 type = sig->params [i]->type;
3708 case MONO_TYPE_BOOLEAN:
3712 case MONO_TYPE_CHAR:
3721 mono_mb_emit_byte (mb, CEE_LDIND_I);
3722 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3724 case MONO_TYPE_STRING:
3725 case MONO_TYPE_CLASS:
3726 case MONO_TYPE_ARRAY:
3728 case MONO_TYPE_SZARRAY:
3729 case MONO_TYPE_OBJECT:
3730 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3732 case MONO_TYPE_GENERICINST:
3733 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3734 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3739 case MONO_TYPE_VALUETYPE:
3740 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3741 type = mono_class_enum_basetype (t->data.klass)->type;
3744 mono_mb_emit_byte (mb, CEE_LDIND_I);
3745 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3746 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3747 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3748 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3750 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3754 g_assert_not_reached ();
3759 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3760 } else if (need_direct_wrapper) {
3761 mono_mb_emit_op (mb, CEE_CALL, method);
3763 mono_mb_emit_ldarg (mb, 3);
3764 mono_mb_emit_calli (mb, callsig);
3767 if (sig->ret->byref) {
3769 g_assert_not_reached ();
3772 switch (sig->ret->type) {
3773 case MONO_TYPE_VOID:
3777 case MONO_TYPE_BOOLEAN:
3778 case MONO_TYPE_CHAR:
3791 case MONO_TYPE_VALUETYPE:
3792 case MONO_TYPE_TYPEDBYREF:
3793 case MONO_TYPE_GENERICINST:
3794 /* box value types */
3795 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3797 case MONO_TYPE_STRING:
3798 case MONO_TYPE_CLASS:
3799 case MONO_TYPE_ARRAY:
3800 case MONO_TYPE_SZARRAY:
3801 case MONO_TYPE_OBJECT:
3805 /* The result is an IntPtr */
3806 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3809 g_assert_not_reached ();
3813 mono_mb_emit_stloc (mb, loc_res);
3815 /* Convert back nullable-byref arguments */
3816 for (i = 0; i < sig->param_count; i++) {
3817 MonoType *t = sig->params [i];
3820 * Box the result and put it back into the array, the caller will have
3821 * to obtain it from there.
3823 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3824 mono_mb_emit_ldarg (mb, 1);
3825 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3826 mono_mb_emit_byte (mb, CEE_ADD);
3828 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3829 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3831 mono_mb_emit_byte (mb, CEE_STIND_REF);
3835 g_free (tmp_nullable_locals);
3839 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3840 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3841 gboolean virtual_, gboolean need_direct_wrapper)
3844 MonoExceptionClause *clause;
3845 int loc_res, loc_exc;
3847 /* The wrapper looks like this:
3853 * } catch (Exception e) {
3861 /* allocate local 0 (object) tmp */
3862 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3863 /* allocate local 1 (object) exc */
3864 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3866 /* *exc is assumed to be initialized to NULL by the caller */
3868 mono_mb_emit_byte (mb, CEE_LDARG_2);
3869 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3874 labels [1] = mono_mb_get_label (mb);
3875 emit_thread_force_interrupt_checkpoint (mb);
3876 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3878 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3880 /* Add a try clause around the call */
3881 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3882 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3883 clause->data.catch_class = mono_defaults.exception_class;
3884 clause->try_offset = labels [1];
3885 clause->try_len = mono_mb_get_label (mb) - labels [1];
3887 clause->handler_offset = mono_mb_get_label (mb);
3890 mono_mb_emit_stloc (mb, loc_exc);
3891 mono_mb_emit_byte (mb, CEE_LDARG_2);
3892 mono_mb_emit_ldloc (mb, loc_exc);
3893 mono_mb_emit_byte (mb, CEE_STIND_REF);
3895 mono_mb_emit_branch (mb, CEE_LEAVE);
3897 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3899 mono_mb_set_clauses (mb, 1, clause);
3901 mono_mb_patch_branch (mb, labels [2]);
3902 mono_mb_emit_ldloc (mb, loc_res);
3903 mono_mb_emit_byte (mb, CEE_RET);
3908 mono_mb_patch_branch (mb, labels [0]);
3909 emit_thread_force_interrupt_checkpoint (mb);
3910 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3912 mono_mb_emit_ldloc (mb, 0);
3913 mono_mb_emit_byte (mb, CEE_RET);
3918 * generates IL code for the runtime invoke function
3919 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3921 * we also catch exceptions if exc != null
3922 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3923 * it means that the compiled code for METHOD does not have to be looked up
3924 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3925 * its METHOD argument.
3928 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3930 MonoMethodSignature *sig, *csig, *callsig;
3931 MonoMethodBuilder *mb;
3932 GHashTable *cache = NULL;
3933 MonoClass *target_klass;
3934 MonoMethod *res = NULL;
3935 static MonoMethodSignature *cctor_signature = NULL;
3936 static MonoMethodSignature *finalize_signature = NULL;
3938 const char *param_names [16];
3939 gboolean need_direct_wrapper = FALSE;
3944 if (!cctor_signature) {
3945 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3946 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3948 if (!finalize_signature) {
3949 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3950 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3951 finalize_signature->hasthis = 1;
3955 need_direct_wrapper = TRUE;
3958 * Use a separate cache indexed by methods to speed things up and to avoid the
3959 * boundless mempool growth caused by the signature_dup stuff below.
3962 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3964 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3966 res = mono_marshal_find_in_cache (cache, method);
3970 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3971 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3973 * Array Get/Set/Address methods. The JIT implements them using inline code
3974 * so we need to create an invoke wrapper which calls the method directly.
3976 need_direct_wrapper = TRUE;
3979 if (method->string_ctor) {
3980 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3982 callsig = add_string_ctor_signature (method);
3983 /* Can't share this as we push a string as this */
3984 need_direct_wrapper = TRUE;
3986 if (method_is_dynamic (method))
3987 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3989 callsig = mono_method_signature (method);
3992 sig = mono_method_signature (method);
3994 target_klass = get_wrapper_target_class (method->klass->image);
3996 /* Try to share wrappers for non-corlib methods with simple signatures */
3997 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3998 callsig = cctor_signature;
3999 target_klass = mono_defaults.object_class;
4000 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4001 callsig = finalize_signature;
4002 target_klass = mono_defaults.object_class;
4005 if (need_direct_wrapper) {
4006 /* Already searched at the start */
4008 MonoMethodSignature *tmp_sig;
4010 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4011 GHashTable **cache_table = NULL;
4013 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4014 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4016 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4018 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4019 (GCompareFunc)runtime_invoke_signature_equal);
4021 /* from mono_marshal_find_in_cache */
4022 mono_marshal_lock ();
4023 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4024 mono_marshal_unlock ();
4031 /* Make a copy of the signature from the image mempool */
4033 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4037 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4039 csig->ret = &mono_defaults.object_class->byval_arg;
4040 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4041 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4043 csig->params [0] = &mono_defaults.object_class->byval_arg;
4044 csig->params [1] = &mono_defaults.int_class->byval_arg;
4045 csig->params [2] = &mono_defaults.int_class->byval_arg;
4046 csig->params [3] = &mono_defaults.int_class->byval_arg;
4049 /* This is called from runtime code so it has to be cdecl */
4050 csig->call_convention = MONO_CALL_C;
4053 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4054 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4058 param_names [0] = "this";
4059 param_names [1] = "params";
4060 param_names [2] = "exc";
4061 param_names [3] = "method";
4062 mono_mb_set_param_names (mb, param_names);
4064 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4067 if (need_direct_wrapper) {
4069 mb->skip_visibility = 1;
4071 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4072 info->d.runtime_invoke.method = method;
4073 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4075 /* taken from mono_mb_create_and_cache */
4076 mono_marshal_lock ();
4077 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4078 mono_marshal_unlock ();
4080 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4081 info->d.runtime_invoke.sig = callsig;
4083 /* Somebody may have created it before us */
4086 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4088 mono_marshal_lock ();
4089 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4091 GHashTable *direct_cache;
4093 g_hash_table_insert (cache, callsig, res);
4094 /* Can't insert it into wrapper_hash since the key is a signature */
4095 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4097 g_hash_table_insert (direct_cache, method, res);
4099 mono_free_method (newm);
4101 mono_marshal_unlock ();
4104 /* end mono_mb_create_and_cache */
4113 * mono_marshal_get_runtime_invoke_dynamic:
4115 * Return a method which can be used to invoke managed methods from native code
4117 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4118 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4119 * ARGS should point to an architecture specific structure containing
4120 * the arguments and space for the return value.
4121 * The other arguments are the same as for runtime_invoke (), except that
4122 * ARGS should contain the this argument too.
4123 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4124 * is only one copy of it, which is useful in full-aot.
4125 * The wrapper info for the wrapper is a WrapperInfo structure.
4128 mono_marshal_get_runtime_invoke_dynamic (void)
4130 static MonoMethod *method;
4131 MonoMethodSignature *csig;
4132 MonoExceptionClause *clause;
4133 MonoMethodBuilder *mb;
4141 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4143 csig->ret = &mono_defaults.void_class->byval_arg;
4144 csig->params [0] = &mono_defaults.int_class->byval_arg;
4145 csig->params [1] = &mono_defaults.int_class->byval_arg;
4146 csig->params [2] = &mono_defaults.int_class->byval_arg;
4147 csig->params [3] = &mono_defaults.int_class->byval_arg;
4149 name = g_strdup ("runtime_invoke_dynamic");
4150 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4154 /* allocate local 0 (object) tmp */
4155 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4156 /* allocate local 1 (object) exc */
4157 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4159 /* cond set *exc to null */
4160 mono_mb_emit_byte (mb, CEE_LDARG_1);
4161 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4162 mono_mb_emit_byte (mb, 3);
4163 mono_mb_emit_byte (mb, CEE_LDARG_1);
4164 mono_mb_emit_byte (mb, CEE_LDNULL);
4165 mono_mb_emit_byte (mb, CEE_STIND_REF);
4167 emit_thread_force_interrupt_checkpoint (mb);
4169 mono_mb_emit_byte (mb, CEE_LDARG_0);
4170 mono_mb_emit_byte (mb, CEE_LDARG_2);
4171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4172 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4174 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4176 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4177 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4178 clause->try_len = mono_mb_get_label (mb);
4181 clause->data.filter_offset = mono_mb_get_label (mb);
4183 mono_mb_emit_byte (mb, CEE_POP);
4184 mono_mb_emit_byte (mb, CEE_LDARG_1);
4185 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4186 mono_mb_emit_byte (mb, CEE_PREFIX1);
4187 mono_mb_emit_byte (mb, CEE_CGT_UN);
4188 mono_mb_emit_byte (mb, CEE_PREFIX1);
4189 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4191 clause->handler_offset = mono_mb_get_label (mb);
4194 /* store exception */
4195 mono_mb_emit_stloc (mb, 1);
4197 mono_mb_emit_byte (mb, CEE_LDARG_1);
4198 mono_mb_emit_ldloc (mb, 1);
4199 mono_mb_emit_byte (mb, CEE_STIND_REF);
4201 mono_mb_emit_byte (mb, CEE_LDNULL);
4202 mono_mb_emit_stloc (mb, 0);
4204 /* Check for the abort exception */
4205 mono_mb_emit_ldloc (mb, 1);
4206 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4207 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4209 /* Delay the abort exception */
4210 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4212 mono_mb_patch_short_branch (mb, posna);
4213 mono_mb_emit_branch (mb, CEE_LEAVE);
4215 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4217 mono_mb_set_clauses (mb, 1, clause);
4220 mono_mb_patch_branch (mb, pos);
4221 //mono_mb_emit_ldloc (mb, 0);
4222 mono_mb_emit_byte (mb, CEE_RET);
4223 #endif /* DISABLE_JIT */
4225 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4227 mono_marshal_lock ();
4228 /* double-checked locking */
4230 method = mono_mb_create (mb, csig, 16, info);
4232 mono_marshal_unlock ();
4240 * mono_marshal_get_runtime_invoke_for_sig:
4242 * Return a runtime invoke wrapper for a given signature.
4245 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4247 MonoMethodSignature *csig, *callsig;
4248 MonoMethodBuilder *mb;
4250 GHashTable *cache = NULL;
4251 GHashTable **cache_table = NULL;
4252 MonoMethod *res = NULL;
4254 const char *param_names [16];
4257 /* A simplified version of mono_marshal_get_runtime_invoke */
4259 image = mono_defaults.corlib;
4261 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4263 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4265 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4266 (GCompareFunc)runtime_invoke_signature_equal);
4268 /* from mono_marshal_find_in_cache */
4269 mono_marshal_lock ();
4270 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4271 mono_marshal_unlock ();
4278 /* Make a copy of the signature from the image mempool */
4279 callsig = mono_metadata_signature_dup_full (image, callsig);
4281 csig = mono_metadata_signature_alloc (image, 4);
4282 csig->ret = &mono_defaults.object_class->byval_arg;
4283 csig->params [0] = &mono_defaults.object_class->byval_arg;
4284 csig->params [1] = &mono_defaults.int_class->byval_arg;
4285 csig->params [2] = &mono_defaults.int_class->byval_arg;
4286 csig->params [3] = &mono_defaults.int_class->byval_arg;
4289 /* This is called from runtime code so it has to be cdecl */
4290 csig->call_convention = MONO_CALL_C;
4293 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4294 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4298 param_names [0] = "this";
4299 param_names [1] = "params";
4300 param_names [2] = "exc";
4301 param_names [3] = "method";
4302 mono_mb_set_param_names (mb, param_names);
4304 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4307 /* taken from mono_mb_create_and_cache */
4308 mono_marshal_lock ();
4309 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4310 mono_marshal_unlock ();
4312 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4313 info->d.runtime_invoke.sig = callsig;
4315 /* Somebody may have created it before us */
4318 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4320 mono_marshal_lock ();
4321 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4324 g_hash_table_insert (cache, callsig, res);
4326 mono_free_method (newm);
4328 mono_marshal_unlock ();
4331 /* end mono_mb_create_and_cache */
4340 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4342 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4343 klass->name_space, klass->name);
4345 mono_mb_emit_exception_marshal_directive (mb, msg);
4350 * generates IL code for the icall wrapper (the generated method
4351 * calls the unmanaged code in func)
4352 * The wrapper info for the wrapper is a WrapperInfo structure.
4355 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4357 MonoMethodSignature *csig, *csig2;
4358 MonoMethodBuilder *mb;
4363 g_assert (sig->pinvoke);
4365 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4367 mb->method->save_lmf = 1;
4369 /* Add an explicit this argument */
4371 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4373 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4377 mono_mb_emit_byte (mb, CEE_LDARG_0);
4379 for (i = 0; i < sig->param_count; i++)
4380 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4382 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4383 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4384 mono_mb_emit_calli (mb, csig2);
4385 if (check_exceptions)
4386 emit_thread_interrupt_checkpoint (mb);
4387 mono_mb_emit_byte (mb, CEE_RET);
4390 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4392 if (csig->call_convention == MONO_CALL_VARARG)
4393 csig->call_convention = 0;
4395 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4396 info->d.icall.func = (gpointer)func;
4397 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4404 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4405 MonoMarshalSpec *spec,
4406 int conv_arg, MonoType **conv_arg_type,
4407 MarshalAction action)
4410 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4411 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4416 static MonoClass *ICustomMarshaler = NULL;
4417 static MonoMethod *cleanup_native, *cleanup_managed;
4418 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4419 MonoMethod *get_instance = NULL;
4420 MonoMethodBuilder *mb = m->mb;
4421 char *exception_msg = NULL;
4425 if (!ICustomMarshaler) {
4426 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4428 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4429 goto handle_exception;
4432 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4433 g_assert (cleanup_native);
4434 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4435 g_assert (cleanup_managed);
4436 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4437 g_assert (marshal_managed_to_native);
4438 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4439 g_assert (marshal_native_to_managed);
4441 mono_memory_barrier ();
4442 ICustomMarshaler = klass;
4445 if (spec->data.custom_data.image)
4446 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4448 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4449 g_assert (mtype != NULL);
4450 mklass = mono_class_from_mono_type (mtype);
4451 g_assert (mklass != NULL);
4453 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4454 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4456 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4458 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4459 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4460 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4461 (get_sig->params [0]->type != MONO_TYPE_STRING))
4462 get_instance = NULL;
4466 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);
4469 /* Throw exception and emit compensation code if neccesary */
4470 if (exception_msg) {
4472 case MARSHAL_ACTION_CONV_IN:
4473 case MARSHAL_ACTION_CONV_RESULT:
4474 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4475 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4476 mono_mb_emit_byte (mb, CEE_POP);
4478 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4479 g_free (exception_msg);
4482 case MARSHAL_ACTION_PUSH:
4483 mono_mb_emit_byte (mb, CEE_LDNULL);
4491 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4492 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4495 case MARSHAL_ACTION_CONV_IN:
4497 case MONO_TYPE_CLASS:
4498 case MONO_TYPE_OBJECT:
4499 case MONO_TYPE_STRING:
4500 case MONO_TYPE_ARRAY:
4501 case MONO_TYPE_SZARRAY:
4502 case MONO_TYPE_VALUETYPE:
4506 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4507 g_assert_not_reached ();
4511 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4513 mono_mb_emit_byte (mb, CEE_LDNULL);
4514 mono_mb_emit_stloc (mb, conv_arg);
4516 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4519 /* Minic MS.NET behavior */
4520 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4523 /* Check for null */
4524 mono_mb_emit_ldarg (mb, argnum);
4526 mono_mb_emit_byte (mb, CEE_LDIND_I);
4527 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4529 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4531 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4533 mono_mb_emit_ldarg (mb, argnum);
4535 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4537 if (t->type == MONO_TYPE_VALUETYPE) {
4539 * Since we can't determine the type of the argument, we
4540 * will assume the unmanaged function takes a pointer.
4542 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4544 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4547 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4548 mono_mb_emit_stloc (mb, conv_arg);
4550 mono_mb_patch_branch (mb, pos2);
4553 case MARSHAL_ACTION_CONV_OUT:
4554 /* Check for null */
4555 mono_mb_emit_ldloc (mb, conv_arg);
4556 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4559 mono_mb_emit_ldarg (mb, argnum);
4561 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4563 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4565 mono_mb_emit_ldloc (mb, conv_arg);
4566 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4567 mono_mb_emit_byte (mb, CEE_STIND_REF);
4568 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4569 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4571 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4573 mono_mb_emit_ldloc (mb, conv_arg);
4574 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4576 /* We have nowhere to store the result */
4577 mono_mb_emit_byte (mb, CEE_POP);
4580 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4582 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4584 mono_mb_emit_ldloc (mb, conv_arg);
4586 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4588 mono_mb_patch_branch (mb, pos2);
4591 case MARSHAL_ACTION_PUSH:
4593 mono_mb_emit_ldloc_addr (mb, conv_arg);
4595 mono_mb_emit_ldloc (mb, conv_arg);
4598 case MARSHAL_ACTION_CONV_RESULT:
4599 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4601 mono_mb_emit_stloc (mb, 3);
4603 mono_mb_emit_ldloc (mb, 3);
4604 mono_mb_emit_stloc (mb, loc1);
4606 /* Check for null */
4607 mono_mb_emit_ldloc (mb, 3);
4608 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4610 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4612 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4613 mono_mb_emit_byte (mb, CEE_DUP);
4615 mono_mb_emit_ldloc (mb, 3);
4616 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4617 mono_mb_emit_stloc (mb, 3);
4619 mono_mb_emit_ldloc (mb, loc1);
4620 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4622 mono_mb_patch_branch (mb, pos2);
4625 case MARSHAL_ACTION_MANAGED_CONV_IN:
4626 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4628 mono_mb_emit_byte (mb, CEE_LDNULL);
4629 mono_mb_emit_stloc (mb, conv_arg);
4631 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4634 /* Check for null */
4635 mono_mb_emit_ldarg (mb, argnum);
4637 mono_mb_emit_byte (mb, CEE_LDIND_I);
4638 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4640 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4641 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4643 mono_mb_emit_ldarg (mb, argnum);
4645 mono_mb_emit_byte (mb, CEE_LDIND_I);
4647 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4648 mono_mb_emit_stloc (mb, conv_arg);
4650 mono_mb_patch_branch (mb, pos2);
4653 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4654 g_assert (!t->byref);
4656 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4658 mono_mb_emit_stloc (mb, 3);
4660 mono_mb_emit_ldloc (mb, 3);
4661 mono_mb_emit_stloc (mb, loc1);
4663 /* Check for null */
4664 mono_mb_emit_ldloc (mb, 3);
4665 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4667 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4668 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4669 mono_mb_emit_byte (mb, CEE_DUP);
4671 mono_mb_emit_ldloc (mb, 3);
4672 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4673 mono_mb_emit_stloc (mb, 3);
4675 mono_mb_emit_ldloc (mb, loc1);
4676 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4678 mono_mb_patch_branch (mb, pos2);
4681 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4683 /* Check for null */
4684 mono_mb_emit_ldloc (mb, conv_arg);
4685 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4688 mono_mb_emit_ldarg (mb, argnum);
4690 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4692 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4694 mono_mb_emit_ldloc (mb, conv_arg);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4696 mono_mb_emit_byte (mb, CEE_STIND_I);
4699 /* Call CleanUpManagedData */
4700 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4702 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4704 mono_mb_emit_ldloc (mb, conv_arg);
4705 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4707 mono_mb_patch_branch (mb, pos2);
4711 g_assert_not_reached ();
4719 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4720 MonoMarshalSpec *spec,
4721 int conv_arg, MonoType **conv_arg_type,
4722 MarshalAction action)
4725 MonoMethodBuilder *mb = m->mb;
4728 case MARSHAL_ACTION_CONV_IN: {
4729 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4731 g_assert (t->type == MONO_TYPE_OBJECT);
4732 g_assert (!t->byref);
4734 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4735 mono_mb_emit_ldarg (mb, argnum);
4736 mono_mb_emit_icon (mb, encoding);
4737 mono_mb_emit_icon (mb, t->attrs);
4738 mono_mb_emit_icall (mb, mono_marshal_asany);
4739 mono_mb_emit_stloc (mb, conv_arg);
4743 case MARSHAL_ACTION_PUSH:
4744 mono_mb_emit_ldloc (mb, conv_arg);
4747 case MARSHAL_ACTION_CONV_OUT: {
4748 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4750 mono_mb_emit_ldarg (mb, argnum);
4751 mono_mb_emit_ldloc (mb, conv_arg);
4752 mono_mb_emit_icon (mb, encoding);
4753 mono_mb_emit_icon (mb, t->attrs);
4754 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4759 g_assert_not_reached ();
4766 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4767 MonoMarshalSpec *spec,
4768 int conv_arg, MonoType **conv_arg_type,
4769 MarshalAction action)
4772 MonoMethodBuilder *mb = m->mb;
4773 MonoClass *klass, *date_time_class;
4776 klass = mono_class_from_mono_type (t);
4778 date_time_class = mono_class_get_date_time_class ();
4781 case MARSHAL_ACTION_CONV_IN:
4782 if (klass == date_time_class) {
4783 /* Convert it to an OLE DATE type */
4784 static MonoMethod *to_oadate;
4787 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4788 g_assert (to_oadate);
4790 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4793 mono_mb_emit_ldarg (mb, argnum);
4794 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4797 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4799 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4801 mono_mb_emit_ldarg_addr (mb, argnum);
4802 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4803 mono_mb_emit_stloc (mb, conv_arg);
4807 mono_mb_patch_branch (mb, pos);
4811 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4812 klass->blittable || klass->enumtype)
4815 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4817 /* store the address of the source into local variable 0 */
4819 mono_mb_emit_ldarg (mb, argnum);
4821 mono_mb_emit_ldarg_addr (mb, argnum);
4823 mono_mb_emit_stloc (mb, 0);
4825 /* allocate space for the native struct and
4826 * store the address into local variable 1 (dest) */
4827 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4828 mono_mb_emit_byte (mb, CEE_PREFIX1);
4829 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4830 mono_mb_emit_stloc (mb, conv_arg);
4833 mono_mb_emit_ldloc (mb, 0);
4834 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4837 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4839 mono_mb_emit_ldloc (mb, conv_arg);
4840 mono_mb_emit_stloc (mb, 1);
4842 /* emit valuetype conversion code */
4843 emit_struct_conv (mb, klass, FALSE);
4847 mono_mb_patch_branch (mb, pos);
4850 case MARSHAL_ACTION_PUSH:
4851 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4853 g_assert (!t->byref);
4855 /* Have to change the signature since the vtype is passed byref */
4856 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4858 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4859 klass->blittable || klass->enumtype)
4860 mono_mb_emit_ldarg_addr (mb, argnum);
4862 mono_mb_emit_ldloc (mb, conv_arg);
4866 if (klass == date_time_class) {
4868 mono_mb_emit_ldloc_addr (mb, conv_arg);
4870 mono_mb_emit_ldloc (mb, conv_arg);
4874 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4875 klass->blittable || klass->enumtype) {
4876 mono_mb_emit_ldarg (mb, argnum);
4879 mono_mb_emit_ldloc (mb, conv_arg);
4881 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4882 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4886 case MARSHAL_ACTION_CONV_OUT:
4887 if (klass == date_time_class) {
4888 /* Convert from an OLE DATE type */
4889 static MonoMethod *from_oadate;
4894 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4896 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4897 g_assert (from_oadate);
4899 mono_mb_emit_ldarg (mb, argnum);
4900 mono_mb_emit_ldloc (mb, conv_arg);
4901 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4902 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4907 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4908 klass->blittable || klass->enumtype)
4912 /* dst = argument */
4913 mono_mb_emit_ldarg (mb, argnum);
4914 mono_mb_emit_stloc (mb, 1);
4916 mono_mb_emit_ldloc (mb, 1);
4917 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4919 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4920 /* src = tmp_locals [i] */
4921 mono_mb_emit_ldloc (mb, conv_arg);
4922 mono_mb_emit_stloc (mb, 0);
4924 /* emit valuetype conversion code */
4925 emit_struct_conv (mb, klass, TRUE);
4929 emit_struct_free (mb, klass, conv_arg);
4932 mono_mb_patch_branch (mb, pos);
4935 case MARSHAL_ACTION_CONV_RESULT:
4936 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4938 mono_mb_emit_stloc (mb, 3);
4942 /* load pointer to returned value type */
4943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4944 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4945 /* store the address of the source into local variable 0 */
4946 mono_mb_emit_stloc (mb, 0);
4948 mono_mb_emit_ldloc_addr (mb, 3);
4949 mono_mb_emit_stloc (mb, 1);
4951 /* emit valuetype conversion code */
4952 emit_struct_conv (mb, klass, TRUE);
4955 case MARSHAL_ACTION_MANAGED_CONV_IN:
4956 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4957 klass->blittable || klass->enumtype) {
4962 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4964 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4968 mono_mb_emit_ldarg (mb, argnum);
4970 mono_mb_emit_ldarg_addr (mb, argnum);
4971 mono_mb_emit_stloc (mb, 0);
4974 mono_mb_emit_ldloc (mb, 0);
4975 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4978 mono_mb_emit_ldloc_addr (mb, conv_arg);
4979 mono_mb_emit_stloc (mb, 1);
4981 /* emit valuetype conversion code */
4982 emit_struct_conv (mb, klass, TRUE);
4985 mono_mb_patch_branch (mb, pos);
4988 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4989 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4990 klass->blittable || klass->enumtype) {
4994 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4997 /* Check for null */
4998 mono_mb_emit_ldarg (mb, argnum);
4999 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5002 mono_mb_emit_ldloc_addr (mb, conv_arg);
5003 mono_mb_emit_stloc (mb, 0);
5006 mono_mb_emit_ldarg (mb, argnum);
5007 mono_mb_emit_stloc (mb, 1);
5009 /* emit valuetype conversion code */
5010 emit_struct_conv (mb, klass, FALSE);
5012 mono_mb_patch_branch (mb, pos2);
5015 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5016 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5017 klass->blittable || klass->enumtype) {
5018 mono_mb_emit_stloc (mb, 3);
5023 /* load pointer to returned value type */
5024 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5025 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5027 /* store the address of the source into local variable 0 */
5028 mono_mb_emit_stloc (mb, 0);
5029 /* allocate space for the native struct and
5030 * store the address into dst_ptr */
5031 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5032 m->retobj_class = klass;
5033 g_assert (m->retobj_var);
5034 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5035 mono_mb_emit_byte (mb, CEE_CONV_I);
5036 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5037 mono_mb_emit_stloc (mb, 1);
5038 mono_mb_emit_ldloc (mb, 1);
5039 mono_mb_emit_stloc (mb, m->retobj_var);
5041 /* emit valuetype conversion code */
5042 emit_struct_conv (mb, klass, FALSE);
5046 g_assert_not_reached ();
5053 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5054 MonoMarshalSpec *spec,
5055 int conv_arg, MonoType **conv_arg_type,
5056 MarshalAction action)
5060 case MARSHAL_ACTION_CONV_IN:
5061 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5063 case MARSHAL_ACTION_MANAGED_CONV_IN:
5064 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5068 MonoMethodBuilder *mb = m->mb;
5069 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5070 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5074 case MARSHAL_ACTION_CONV_IN:
5075 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5076 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5079 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5082 mono_mb_emit_ldarg (mb, argnum);
5083 mono_mb_emit_byte (mb, CEE_LDIND_I);
5085 mono_mb_emit_ldarg (mb, argnum);
5089 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5090 mono_mb_emit_exception_marshal_directive (mb, msg);
5092 mono_mb_emit_icall (mb, conv_to_icall (conv));
5094 mono_mb_emit_stloc (mb, conv_arg);
5098 case MARSHAL_ACTION_CONV_OUT:
5099 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5101 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5102 mono_mb_emit_exception_marshal_directive (mb, msg);
5106 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5107 static MonoMethod *m;
5110 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5115 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5116 mono_mb_emit_exception_marshal_directive (mb, msg);
5121 * Have to allocate a new string with the same length as the original, and
5122 * copy the contents of the buffer pointed to by CONV_ARG into it.
5124 g_assert (t->byref);
5125 mono_mb_emit_ldarg (mb, argnum);
5126 mono_mb_emit_ldloc (mb, conv_arg);
5127 mono_mb_emit_ldarg (mb, argnum);
5128 mono_mb_emit_byte (mb, CEE_LDIND_I);
5129 mono_mb_emit_managed_call (mb, m, NULL);
5130 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5131 mono_mb_emit_byte (mb, CEE_STIND_REF);
5132 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5133 mono_mb_emit_ldarg (mb, argnum);
5134 mono_mb_emit_ldloc (mb, conv_arg);
5135 mono_mb_emit_icall (mb, conv_to_icall (conv));
5136 mono_mb_emit_byte (mb, CEE_STIND_REF);
5141 mono_mb_emit_ldloc (mb, conv_arg);
5142 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5143 mono_mb_emit_icall (mb, mono_free_bstr);
5145 mono_mb_emit_icall (mb, mono_marshal_free);
5149 case MARSHAL_ACTION_PUSH:
5150 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5151 mono_mb_emit_ldloc_addr (mb, conv_arg);
5153 mono_mb_emit_ldloc (mb, conv_arg);
5156 case MARSHAL_ACTION_CONV_RESULT:
5157 mono_mb_emit_stloc (mb, 0);
5159 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5161 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5162 mono_mb_emit_exception_marshal_directive (mb, msg);
5166 mono_mb_emit_ldloc (mb, 0);
5167 mono_mb_emit_icall (mb, conv_to_icall (conv));
5168 mono_mb_emit_stloc (mb, 3);
5170 /* free the string */
5171 mono_mb_emit_ldloc (mb, 0);
5172 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5173 mono_mb_emit_icall (mb, mono_free_bstr);
5175 mono_mb_emit_icall (mb, mono_marshal_free);
5178 case MARSHAL_ACTION_MANAGED_CONV_IN:
5179 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5181 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5184 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5188 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5190 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5191 mono_mb_emit_exception_marshal_directive (mb, msg);
5195 mono_mb_emit_ldarg (mb, argnum);
5197 mono_mb_emit_byte (mb, CEE_LDIND_I);
5198 mono_mb_emit_icall (mb, conv_to_icall (conv));
5199 mono_mb_emit_stloc (mb, conv_arg);
5202 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5205 mono_mb_emit_ldarg (mb, argnum);
5206 mono_mb_emit_ldloc (mb, conv_arg);
5207 mono_mb_emit_icall (mb, conv_to_icall (conv));
5208 mono_mb_emit_byte (mb, CEE_STIND_I);
5213 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5214 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5215 /* We need to make a copy so the caller is able to free it */
5216 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5218 mono_mb_emit_icall (mb, conv_to_icall (conv));
5219 mono_mb_emit_stloc (mb, 3);
5223 g_assert_not_reached ();
5231 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5232 MonoMarshalSpec *spec, int conv_arg,
5233 MonoType **conv_arg_type, MarshalAction action)
5236 if (action == MARSHAL_ACTION_CONV_IN)
5237 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5239 MonoMethodBuilder *mb = m->mb;
5242 case MARSHAL_ACTION_CONV_IN: {
5243 MonoType *intptr_type;
5244 int dar_release_slot, pos;
5246 intptr_type = &mono_defaults.int_class->byval_arg;
5247 conv_arg = mono_mb_add_local (mb, intptr_type);
5248 *conv_arg_type = intptr_type;
5250 if (!sh_dangerous_add_ref)
5251 init_safe_handle ();
5253 mono_mb_emit_ldarg (mb, argnum);
5254 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5255 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5257 mono_mb_patch_branch (mb, pos);
5260 * My tests in show that ref SafeHandles are not really
5261 * passed as ref objects. Instead a NULL is passed as the
5264 mono_mb_emit_icon (mb, 0);
5265 mono_mb_emit_stloc (mb, conv_arg);
5269 /* Create local to hold the ref parameter to DangerousAddRef */
5270 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5272 /* set release = false; */
5273 mono_mb_emit_icon (mb, 0);
5274 mono_mb_emit_stloc (mb, dar_release_slot);
5276 /* safehandle.DangerousAddRef (ref release) */
5277 mono_mb_emit_ldarg (mb, argnum);
5278 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5279 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5281 /* Pull the handle field from SafeHandle */
5282 mono_mb_emit_ldarg (mb, argnum);
5283 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5284 mono_mb_emit_byte (mb, CEE_LDIND_I);
5285 mono_mb_emit_stloc (mb, conv_arg);
5290 case MARSHAL_ACTION_PUSH:
5292 mono_mb_emit_ldloc_addr (mb, conv_arg);
5294 mono_mb_emit_ldloc (mb, conv_arg);
5297 case MARSHAL_ACTION_CONV_OUT: {
5298 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5299 int dar_release_slot = conv_arg + 1;
5302 if (!sh_dangerous_release)
5303 init_safe_handle ();
5309 * My tests indicate that ref SafeHandles parameters are not actually
5310 * passed by ref, but instead a new Handle is created regardless of
5311 * whether a change happens in the unmanaged side.
5313 * Also, the Handle is created before calling into unmanaged code,
5314 * but we do not support that mechanism (getting to the original
5315 * handle) and it makes no difference where we create this
5317 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5319 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5322 /* refval = new SafeHandleDerived ()*/
5323 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5325 mono_mb_emit_byte (mb, CEE_STIND_REF);
5327 /* refval.handle = returned_handle */
5328 mono_mb_emit_ldarg (mb, argnum);
5329 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5330 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5331 mono_mb_emit_ldloc (mb, conv_arg);
5332 mono_mb_emit_byte (mb, CEE_STIND_I);
5334 mono_mb_emit_ldloc (mb, dar_release_slot);
5335 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5336 mono_mb_emit_ldarg (mb, argnum);
5337 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5338 mono_mb_patch_branch (mb, label_next);
5343 case MARSHAL_ACTION_CONV_RESULT: {
5344 MonoMethod *ctor = NULL;
5345 int intptr_handle_slot;
5347 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5348 mono_mb_emit_byte (mb, CEE_POP);
5349 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5353 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5355 mono_mb_emit_byte (mb, CEE_POP);
5356 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5359 /* Store the IntPtr results into a local */
5360 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5361 mono_mb_emit_stloc (mb, intptr_handle_slot);
5363 /* Create return value */
5364 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5365 mono_mb_emit_stloc (mb, 3);
5367 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5368 mono_mb_emit_ldloc (mb, 3);
5369 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5370 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5371 mono_mb_emit_byte (mb, CEE_STIND_I);
5375 case MARSHAL_ACTION_MANAGED_CONV_IN:
5376 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5379 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5380 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5383 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5384 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5387 printf ("Unhandled case for MarshalAction: %d\n", action);
5395 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5396 MonoMarshalSpec *spec, int conv_arg,
5397 MonoType **conv_arg_type, MarshalAction action)
5400 if (action == MARSHAL_ACTION_CONV_IN)
5401 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5403 MonoMethodBuilder *mb = m->mb;
5406 case MARSHAL_ACTION_CONV_IN: {
5407 MonoType *intptr_type;
5409 intptr_type = &mono_defaults.int_class->byval_arg;
5410 conv_arg = mono_mb_add_local (mb, intptr_type);
5411 *conv_arg_type = intptr_type;
5414 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5415 mono_mb_emit_exception_marshal_directive (mb, msg);
5418 mono_mb_emit_ldarg_addr (mb, argnum);
5419 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5420 mono_mb_emit_byte (mb, CEE_ADD);
5421 mono_mb_emit_byte (mb, CEE_LDIND_I);
5422 mono_mb_emit_stloc (mb, conv_arg);
5426 case MARSHAL_ACTION_PUSH:
5427 mono_mb_emit_ldloc (mb, conv_arg);
5430 case MARSHAL_ACTION_CONV_OUT: {
5431 /* no resource release required */
5435 case MARSHAL_ACTION_CONV_RESULT: {
5436 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5437 mono_mb_emit_exception_marshal_directive (mb, msg);
5441 case MARSHAL_ACTION_MANAGED_CONV_IN:
5442 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5445 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5446 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5449 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5450 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5453 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5461 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5462 MonoMarshalSpec *spec,
5463 int conv_arg, MonoType **conv_arg_type,
5464 MarshalAction action)
5467 if (action == MARSHAL_ACTION_CONV_IN)
5468 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5470 MonoMethodBuilder *mb = m->mb;
5471 MonoClass *klass = mono_class_from_mono_type (t);
5475 case MARSHAL_ACTION_CONV_IN:
5476 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5477 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5479 m->orig_conv_args [argnum] = 0;
5481 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5482 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5483 mono_mb_emit_exception_marshal_directive (mb, msg);
5487 if (klass->delegate) {
5489 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5490 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5491 mono_mb_emit_exception_marshal_directive (mb, msg);
5493 mono_mb_emit_byte (mb, CEE_LDNULL);
5494 mono_mb_emit_stloc (mb, conv_arg);
5496 mono_mb_emit_ldarg (mb, argnum);
5497 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5498 mono_mb_emit_stloc (mb, conv_arg);
5500 } else if (klass == mono_defaults.stringbuilder_class) {
5501 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5502 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5506 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5507 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5508 mono_mb_emit_exception_marshal_directive (mb, msg);
5514 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5518 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5519 mono_mb_emit_exception_marshal_directive (mb, msg);
5523 mono_mb_emit_ldarg (mb, argnum);
5525 mono_mb_emit_byte (mb, CEE_LDIND_I);
5527 mono_mb_emit_icall (mb, conv_to_icall (conv));
5528 mono_mb_emit_stloc (mb, conv_arg);
5529 } else if (klass->blittable) {
5530 mono_mb_emit_byte (mb, CEE_LDNULL);
5531 mono_mb_emit_stloc (mb, conv_arg);
5533 mono_mb_emit_ldarg (mb, argnum);
5534 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5536 mono_mb_emit_ldarg (mb, argnum);
5537 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5538 mono_mb_emit_stloc (mb, conv_arg);
5540 mono_mb_patch_branch (mb, pos);
5543 mono_mb_emit_byte (mb, CEE_LDNULL);
5544 mono_mb_emit_stloc (mb, conv_arg);
5547 /* we dont need any conversions for out parameters */
5548 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5551 mono_mb_emit_ldarg (mb, argnum);
5552 mono_mb_emit_byte (mb, CEE_LDIND_I);
5555 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5557 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5560 /* store the address of the source into local variable 0 */
5561 mono_mb_emit_stloc (mb, 0);
5562 mono_mb_emit_ldloc (mb, 0);
5563 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5565 /* allocate space for the native struct and store the address */
5566 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5567 mono_mb_emit_byte (mb, CEE_PREFIX1);
5568 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5569 mono_mb_emit_stloc (mb, conv_arg);
5572 /* Need to store the original buffer so we can free it later */
5573 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5574 mono_mb_emit_ldloc (mb, conv_arg);
5575 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5578 /* set the src_ptr */
5579 mono_mb_emit_ldloc (mb, 0);
5580 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5581 mono_mb_emit_stloc (mb, 0);
5584 mono_mb_emit_ldloc (mb, conv_arg);
5585 mono_mb_emit_stloc (mb, 1);
5587 /* emit valuetype conversion code */
5588 emit_struct_conv (mb, klass, FALSE);
5590 mono_mb_patch_branch (mb, pos);
5594 case MARSHAL_ACTION_CONV_OUT:
5595 if (klass == mono_defaults.stringbuilder_class) {
5597 MonoMarshalNative encoding;
5598 MonoMarshalConv conv;
5600 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5601 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5603 g_assert (encoding != -1);
5606 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5610 mono_mb_emit_ldarg (mb, argnum);
5611 mono_mb_emit_ldloc (mb, conv_arg);
5614 case MONO_NATIVE_LPWSTR:
5615 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5617 case MONO_NATIVE_LPSTR:
5618 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5621 g_assert_not_reached ();
5624 mono_mb_emit_byte (mb, CEE_STIND_REF);
5626 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_ldloc (mb, conv_arg);
5629 mono_mb_emit_icall (mb, conv_to_icall (conv));
5633 mono_mb_emit_ldloc (mb, conv_arg);
5634 mono_mb_emit_icall (mb, mono_marshal_free);
5639 if (klass->delegate) {
5641 mono_mb_emit_ldarg (mb, argnum);
5642 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5643 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5644 mono_mb_emit_ldloc (mb, conv_arg);
5645 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5646 mono_mb_emit_byte (mb, CEE_STIND_REF);
5651 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5652 /* allocate a new object */
5653 mono_mb_emit_ldarg (mb, argnum);
5654 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5655 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5656 mono_mb_emit_byte (mb, CEE_STIND_REF);
5659 /* dst = *argument */
5660 mono_mb_emit_ldarg (mb, argnum);
5663 mono_mb_emit_byte (mb, CEE_LDIND_I);
5665 mono_mb_emit_stloc (mb, 1);
5667 mono_mb_emit_ldloc (mb, 1);
5668 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5670 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5671 mono_mb_emit_ldloc (mb, 1);
5672 mono_mb_emit_icon (mb, sizeof (MonoObject));
5673 mono_mb_emit_byte (mb, CEE_ADD);
5674 mono_mb_emit_stloc (mb, 1);
5676 /* src = tmp_locals [i] */
5677 mono_mb_emit_ldloc (mb, conv_arg);
5678 mono_mb_emit_stloc (mb, 0);
5680 /* emit valuetype conversion code */
5681 emit_struct_conv (mb, klass, TRUE);
5683 /* Free the structure returned by the native code */
5684 emit_struct_free (mb, klass, conv_arg);
5686 if (m->orig_conv_args [argnum]) {
5688 * If the native function changed the pointer, then free
5689 * the original structure plus the new pointer.
5691 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5692 mono_mb_emit_ldloc (mb, conv_arg);
5693 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5695 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5696 g_assert (m->orig_conv_args [argnum]);
5698 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5701 mono_mb_emit_ldloc (mb, conv_arg);
5702 mono_mb_emit_icall (mb, mono_marshal_free);
5704 mono_mb_patch_branch (mb, pos2);
5708 /* Free the original structure passed to native code */
5709 emit_struct_free (mb, klass, conv_arg);
5711 mono_mb_patch_branch (mb, pos);
5714 case MARSHAL_ACTION_PUSH:
5716 mono_mb_emit_ldloc_addr (mb, conv_arg);
5718 mono_mb_emit_ldloc (mb, conv_arg);
5721 case MARSHAL_ACTION_CONV_RESULT:
5722 if (klass->delegate) {
5723 g_assert (!t->byref);
5724 mono_mb_emit_stloc (mb, 0);
5725 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5726 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5727 mono_mb_emit_ldloc (mb, 0);
5728 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5729 mono_mb_emit_stloc (mb, 3);
5732 mono_mb_emit_stloc (mb, 0);
5734 /* Make a copy since emit_conv modifies local 0 */
5735 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5736 mono_mb_emit_ldloc (mb, 0);
5737 mono_mb_emit_stloc (mb, loc);
5739 mono_mb_emit_byte (mb, CEE_LDNULL);
5740 mono_mb_emit_stloc (mb, 3);
5742 mono_mb_emit_ldloc (mb, 0);
5743 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5745 /* allocate result object */
5747 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5748 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5749 mono_mb_emit_stloc (mb, 3);
5753 mono_mb_emit_ldloc (mb, 3);
5754 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5755 mono_mb_emit_stloc (mb, 1);
5757 /* emit conversion code */
5758 emit_struct_conv (mb, klass, TRUE);
5760 emit_struct_free (mb, klass, loc);
5762 /* Free the pointer allocated by unmanaged code */
5763 mono_mb_emit_ldloc (mb, loc);
5764 mono_mb_emit_icall (mb, mono_marshal_free);
5765 mono_mb_patch_branch (mb, pos);
5769 case MARSHAL_ACTION_MANAGED_CONV_IN:
5770 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5772 if (klass->delegate) {
5773 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5774 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5775 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_byte (mb, CEE_LDIND_I);
5778 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5779 mono_mb_emit_stloc (mb, conv_arg);
5783 if (klass == mono_defaults.stringbuilder_class) {
5784 MonoMarshalNative encoding;
5786 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5789 g_assert (encoding == MONO_NATIVE_LPSTR);
5791 g_assert (!t->byref);
5792 g_assert (encoding != -1);
5794 mono_mb_emit_ldarg (mb, argnum);
5795 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5796 mono_mb_emit_stloc (mb, conv_arg);
5800 /* The class can not have an automatic layout */
5801 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5802 mono_mb_emit_auto_layout_exception (mb, klass);
5806 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5807 mono_mb_emit_byte (mb, CEE_LDNULL);
5808 mono_mb_emit_stloc (mb, conv_arg);
5813 mono_mb_emit_ldarg (mb, argnum);
5817 /* Check for NULL and raise an exception */
5818 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5820 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5822 mono_mb_patch_branch (mb, pos2);
5823 mono_mb_emit_ldarg (mb, argnum);
5824 mono_mb_emit_byte (mb, CEE_LDIND_I);
5827 mono_mb_emit_stloc (mb, 0);
5829 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5830 mono_mb_emit_stloc (mb, conv_arg);
5832 mono_mb_emit_ldloc (mb, 0);
5833 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5835 /* Create and set dst */
5836 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5837 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5838 mono_mb_emit_stloc (mb, conv_arg);
5839 mono_mb_emit_ldloc (mb, conv_arg);
5840 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5841 mono_mb_emit_stloc (mb, 1);
5843 /* emit valuetype conversion code */
5844 emit_struct_conv (mb, klass, TRUE);
5846 mono_mb_patch_branch (mb, pos);
5849 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5850 if (klass->delegate) {
5852 mono_mb_emit_ldarg (mb, argnum);
5853 mono_mb_emit_ldloc (mb, conv_arg);
5854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5855 mono_mb_emit_byte (mb, CEE_STIND_I);
5861 /* Check for null */
5862 mono_mb_emit_ldloc (mb, conv_arg);
5863 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5864 mono_mb_emit_ldarg (mb, argnum);
5865 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5866 mono_mb_emit_byte (mb, CEE_STIND_REF);
5867 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5869 mono_mb_patch_branch (mb, pos);
5872 mono_mb_emit_ldloc (mb, conv_arg);
5873 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5874 mono_mb_emit_stloc (mb, 0);
5876 /* Allocate and set dest */
5877 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5878 mono_mb_emit_byte (mb, CEE_CONV_I);
5879 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5880 mono_mb_emit_stloc (mb, 1);
5882 /* Update argument pointer */
5883 mono_mb_emit_ldarg (mb, argnum);
5884 mono_mb_emit_ldloc (mb, 1);
5885 mono_mb_emit_byte (mb, CEE_STIND_I);
5887 /* emit valuetype conversion code */
5888 emit_struct_conv (mb, klass, FALSE);
5890 mono_mb_patch_branch (mb, pos2);
5891 } else if (klass == mono_defaults.stringbuilder_class) {
5892 // FIXME: What to do here ?
5894 /* byval [Out] marshalling */
5896 /* FIXME: Handle null */
5899 mono_mb_emit_ldloc (mb, conv_arg);
5900 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5901 mono_mb_emit_stloc (mb, 0);
5904 mono_mb_emit_ldarg (mb, argnum);
5905 mono_mb_emit_stloc (mb, 1);
5907 /* emit valuetype conversion code */
5908 emit_struct_conv (mb, klass, FALSE);
5912 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5913 if (klass->delegate) {
5914 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5915 mono_mb_emit_stloc (mb, 3);
5919 /* The class can not have an automatic layout */
5920 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5921 mono_mb_emit_auto_layout_exception (mb, klass);
5925 mono_mb_emit_stloc (mb, 0);
5926 /* Check for null */
5927 mono_mb_emit_ldloc (mb, 0);
5928 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5929 mono_mb_emit_byte (mb, CEE_LDNULL);
5930 mono_mb_emit_stloc (mb, 3);
5931 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5933 mono_mb_patch_branch (mb, pos);
5936 mono_mb_emit_ldloc (mb, 0);
5937 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5938 mono_mb_emit_stloc (mb, 0);
5940 /* Allocate and set dest */
5941 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5942 mono_mb_emit_byte (mb, CEE_CONV_I);
5943 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5944 mono_mb_emit_byte (mb, CEE_DUP);
5945 mono_mb_emit_stloc (mb, 1);
5946 mono_mb_emit_stloc (mb, 3);
5948 emit_struct_conv (mb, klass, FALSE);
5950 mono_mb_patch_branch (mb, pos2);
5954 g_assert_not_reached ();
5965 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5966 MonoMarshalSpec *spec,
5967 int conv_arg, MonoType **conv_arg_type,
5968 MarshalAction action)
5970 MonoMethodBuilder *mb = m->mb;
5971 static MonoMethod *get_object_for_native_variant = NULL;
5972 static MonoMethod *get_native_variant_for_object = NULL;
5974 if (!get_object_for_native_variant)
5975 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5976 g_assert (get_object_for_native_variant);
5978 if (!get_native_variant_for_object)
5979 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5980 g_assert (get_native_variant_for_object);
5983 case MARSHAL_ACTION_CONV_IN: {
5984 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5987 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5989 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5991 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5994 mono_mb_emit_ldarg (mb, argnum);
5996 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5997 mono_mb_emit_ldloc_addr (mb, conv_arg);
5998 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6002 case MARSHAL_ACTION_CONV_OUT: {
6003 static MonoMethod *variant_clear = NULL;
6006 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6007 g_assert (variant_clear);
6010 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6011 mono_mb_emit_ldarg (mb, argnum);
6012 mono_mb_emit_ldloc_addr (mb, conv_arg);
6013 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6014 mono_mb_emit_byte (mb, CEE_STIND_REF);
6017 mono_mb_emit_ldloc_addr (mb, conv_arg);
6018 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6022 case MARSHAL_ACTION_PUSH:
6024 mono_mb_emit_ldloc_addr (mb, conv_arg);
6026 mono_mb_emit_ldloc (mb, conv_arg);
6029 case MARSHAL_ACTION_CONV_RESULT: {
6030 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6031 mono_mb_emit_exception_marshal_directive (mb, msg);
6035 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6036 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6039 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6041 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6043 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6047 mono_mb_emit_ldarg (mb, argnum);
6049 mono_mb_emit_ldarg_addr (mb, argnum);
6050 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6051 mono_mb_emit_stloc (mb, conv_arg);
6055 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6056 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6057 mono_mb_emit_ldloc (mb, conv_arg);
6058 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6064 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6065 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6066 mono_mb_emit_exception_marshal_directive (mb, msg);
6071 g_assert_not_reached ();
6077 #endif /* DISABLE_COM */
6078 #endif /* DISABLE_JIT */
6081 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6083 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6084 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6086 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6088 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6100 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6101 MonoMarshalSpec *spec,
6102 int conv_arg, MonoType **conv_arg_type,
6103 MarshalAction action)
6107 case MARSHAL_ACTION_CONV_IN:
6108 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6110 case MARSHAL_ACTION_MANAGED_CONV_IN:
6111 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6115 MonoMethodBuilder *mb = m->mb;
6116 MonoClass *klass = mono_class_from_mono_type (t);
6117 gboolean need_convert, need_free;
6118 MonoMarshalNative encoding;
6120 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6123 case MARSHAL_ACTION_CONV_IN:
6124 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6125 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6127 if (klass->element_class->blittable) {
6128 mono_mb_emit_ldarg (mb, argnum);
6130 mono_mb_emit_byte (mb, CEE_LDIND_I);
6131 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6132 mono_mb_emit_stloc (mb, conv_arg);
6135 guint32 label1, label2, label3;
6136 int index_var, src_var, dest_ptr, esize;
6137 MonoMarshalConv conv;
6138 gboolean is_string = FALSE;
6140 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6142 eklass = klass->element_class;
6144 if (eklass == mono_defaults.string_class) {
6146 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6148 else if (eklass == mono_defaults.stringbuilder_class) {
6150 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6153 conv = (MonoMarshalConv)-1;
6155 if (is_string && conv == -1) {
6156 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6157 mono_mb_emit_exception_marshal_directive (mb, msg);
6161 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6162 mono_mb_emit_ldarg (mb, argnum);
6164 mono_mb_emit_byte (mb, CEE_LDIND_I);
6165 mono_mb_emit_stloc (mb, src_var);
6168 mono_mb_emit_ldloc (mb, src_var);
6169 mono_mb_emit_stloc (mb, conv_arg);
6170 mono_mb_emit_ldloc (mb, src_var);
6171 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6174 esize = sizeof (gpointer);
6175 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6176 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6178 esize = mono_class_native_size (eklass, NULL);
6180 /* allocate space for the native struct and store the address */
6181 mono_mb_emit_icon (mb, esize);
6182 mono_mb_emit_ldloc (mb, src_var);
6183 mono_mb_emit_byte (mb, CEE_LDLEN);
6185 if (eklass == mono_defaults.string_class) {
6186 /* Make the array bigger for the terminating null */
6187 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6188 mono_mb_emit_byte (mb, CEE_ADD);
6190 mono_mb_emit_byte (mb, CEE_MUL);
6191 mono_mb_emit_byte (mb, CEE_PREFIX1);
6192 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6193 mono_mb_emit_stloc (mb, conv_arg);
6195 mono_mb_emit_ldloc (mb, conv_arg);
6196 mono_mb_emit_stloc (mb, dest_ptr);
6198 /* Emit marshalling loop */
6199 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6200 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6201 mono_mb_emit_stloc (mb, index_var);
6202 label2 = mono_mb_get_label (mb);
6203 mono_mb_emit_ldloc (mb, index_var);
6204 mono_mb_emit_ldloc (mb, src_var);
6205 mono_mb_emit_byte (mb, CEE_LDLEN);
6206 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6208 /* Emit marshalling code */
6211 mono_mb_emit_ldloc (mb, dest_ptr);
6212 mono_mb_emit_ldloc (mb, src_var);
6213 mono_mb_emit_ldloc (mb, index_var);
6214 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6215 mono_mb_emit_icall (mb, conv_to_icall (conv));
6216 mono_mb_emit_byte (mb, CEE_STIND_I);
6218 /* set the src_ptr */
6219 mono_mb_emit_ldloc (mb, src_var);
6220 mono_mb_emit_ldloc (mb, index_var);
6221 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6222 mono_mb_emit_stloc (mb, 0);
6225 mono_mb_emit_ldloc (mb, dest_ptr);
6226 mono_mb_emit_stloc (mb, 1);
6228 /* emit valuetype conversion code */
6229 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6232 mono_mb_emit_add_to_local (mb, index_var, 1);
6233 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6235 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6237 mono_mb_patch_branch (mb, label3);
6239 if (eklass == mono_defaults.string_class) {
6240 /* Null terminate */
6241 mono_mb_emit_ldloc (mb, dest_ptr);
6242 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6243 mono_mb_emit_byte (mb, CEE_STIND_REF);
6246 mono_mb_patch_branch (mb, label1);
6251 case MARSHAL_ACTION_CONV_OUT:
6252 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6253 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);
6254 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6257 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6258 int param_num = spec->data.array_data.param_num;
6259 MonoType *param_type;
6261 param_type = m->sig->params [param_num];
6263 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6264 char *msg = g_strdup ("Not implemented.");
6265 mono_mb_emit_exception_marshal_directive (mb, msg);
6270 mono_mb_emit_ldarg (mb, argnum);
6272 /* Create the managed array */
6273 mono_mb_emit_ldarg (mb, param_num);
6274 if (m->sig->params [param_num]->byref)
6275 // FIXME: Support other types
6276 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6277 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6278 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6279 /* Store into argument */
6280 mono_mb_emit_byte (mb, CEE_STIND_I);
6284 if (need_convert || need_free) {
6285 /* FIXME: Optimize blittable case */
6287 guint32 label1, label2, label3;
6288 int index_var, src_ptr, loc, esize;
6290 eklass = klass->element_class;
6291 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6292 esize = sizeof (gpointer);
6293 else if (eklass == mono_defaults.char_class)
6294 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6296 esize = mono_class_native_size (eklass, NULL);
6297 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6298 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6301 mono_mb_emit_ldarg (mb, argnum);
6303 mono_mb_emit_byte (mb, CEE_LDIND_I);
6304 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6306 mono_mb_emit_ldloc (mb, conv_arg);
6307 mono_mb_emit_stloc (mb, src_ptr);
6309 /* Emit marshalling loop */
6310 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6311 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6312 mono_mb_emit_stloc (mb, index_var);
6313 label2 = mono_mb_get_label (mb);
6314 mono_mb_emit_ldloc (mb, index_var);
6315 mono_mb_emit_ldarg (mb, argnum);
6317 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6318 mono_mb_emit_byte (mb, CEE_LDLEN);
6319 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6321 /* Emit marshalling code */
6323 if (eklass == mono_defaults.stringbuilder_class) {
6324 gboolean need_free2;
6325 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6327 g_assert (conv != -1);
6330 mono_mb_emit_ldarg (mb, argnum);
6332 mono_mb_emit_byte (mb, CEE_LDIND_I);
6333 mono_mb_emit_ldloc (mb, index_var);
6334 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6337 mono_mb_emit_ldloc (mb, src_ptr);
6338 mono_mb_emit_byte (mb, CEE_LDIND_I);
6340 mono_mb_emit_icall (mb, conv_to_icall (conv));
6344 mono_mb_emit_ldloc (mb, src_ptr);
6345 mono_mb_emit_byte (mb, CEE_LDIND_I);
6347 mono_mb_emit_icall (mb, mono_marshal_free);
6350 else if (eklass == mono_defaults.string_class) {
6353 mono_mb_emit_ldloc (mb, src_ptr);
6354 mono_mb_emit_byte (mb, CEE_LDIND_I);
6356 mono_mb_emit_icall (mb, mono_marshal_free);
6361 /* set the src_ptr */
6362 mono_mb_emit_ldloc (mb, src_ptr);
6363 mono_mb_emit_stloc (mb, 0);
6366 mono_mb_emit_ldarg (mb, argnum);
6368 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6369 mono_mb_emit_ldloc (mb, index_var);
6370 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6371 mono_mb_emit_stloc (mb, 1);
6373 /* emit valuetype conversion code */
6374 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6378 mono_mb_emit_ldloc (mb, src_ptr);
6379 mono_mb_emit_stloc (mb, loc);
6380 mono_mb_emit_ldloc (mb, loc);
6382 emit_struct_free (mb, eklass, loc);
6386 mono_mb_emit_add_to_local (mb, index_var, 1);
6387 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6389 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6391 mono_mb_patch_branch (mb, label1);
6392 mono_mb_patch_branch (mb, label3);
6395 if (klass->element_class->blittable) {
6396 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6398 mono_mb_emit_ldarg (mb, argnum);
6400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6401 mono_mb_emit_ldloc (mb, conv_arg);
6402 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6407 case MARSHAL_ACTION_PUSH:
6409 mono_mb_emit_ldloc_addr (mb, conv_arg);
6411 mono_mb_emit_ldloc (mb, conv_arg);
6414 case MARSHAL_ACTION_CONV_RESULT:
6415 /* fixme: we need conversions here */
6416 mono_mb_emit_stloc (mb, 3);
6419 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6421 guint32 label1, label2, label3;
6422 int index_var, src_ptr, esize, param_num, num_elem;
6423 MonoMarshalConv conv;
6424 gboolean is_string = FALSE;
6426 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6427 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6430 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6431 mono_mb_emit_exception_marshal_directive (mb, msg);
6435 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6436 mono_mb_emit_exception_marshal_directive (mb, msg);
6439 if (spec->native != MONO_NATIVE_LPARRAY) {
6440 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6441 mono_mb_emit_exception_marshal_directive (mb, msg);
6445 /* FIXME: t is from the method which is wrapped, not the delegate type */
6446 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6448 param_num = spec->data.array_data.param_num;
6449 num_elem = spec->data.array_data.num_elem;
6450 if (spec->data.array_data.elem_mult == 0)
6451 /* param_num is not specified */
6454 if (param_num == -1) {
6455 if (num_elem <= 0) {
6456 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6457 mono_mb_emit_exception_marshal_directive (mb, msg);
6462 /* FIXME: Optimize blittable case */
6464 eklass = klass->element_class;
6465 if (eklass == mono_defaults.string_class) {
6467 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6469 else if (eklass == mono_defaults.stringbuilder_class) {
6471 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6474 conv = (MonoMarshalConv)-1;
6476 mono_marshal_load_type_info (eklass);
6479 esize = sizeof (gpointer);
6481 esize = mono_class_native_size (eklass, NULL);
6482 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6484 mono_mb_emit_byte (mb, CEE_LDNULL);
6485 mono_mb_emit_stloc (mb, conv_arg);
6487 /* Check param index */
6488 if (param_num != -1) {
6489 if (param_num >= m->sig->param_count) {
6490 char *msg = g_strdup ("Array size control parameter index is out of range.");
6491 mono_mb_emit_exception_marshal_directive (mb, msg);
6494 switch (m->sig->params [param_num]->type) {
6507 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6508 mono_mb_emit_exception_marshal_directive (mb, msg);
6515 mono_mb_emit_ldarg (mb, argnum);
6516 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6518 mono_mb_emit_ldarg (mb, argnum);
6519 mono_mb_emit_stloc (mb, src_ptr);
6521 /* Create managed array */
6523 * The LPArray marshalling spec says that sometimes param_num starts
6524 * from 1, sometimes it starts from 0. But MS seems to allways start
6528 if (param_num == -1) {
6529 mono_mb_emit_icon (mb, num_elem);
6531 mono_mb_emit_ldarg (mb, param_num);
6533 mono_mb_emit_icon (mb, num_elem);
6534 mono_mb_emit_byte (mb, CEE_ADD);
6536 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6539 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6540 mono_mb_emit_stloc (mb, conv_arg);
6542 if (eklass->blittable) {
6543 mono_mb_emit_ldloc (mb, conv_arg);
6544 mono_mb_emit_byte (mb, CEE_CONV_I);
6545 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6546 mono_mb_emit_byte (mb, CEE_ADD);
6547 mono_mb_emit_ldarg (mb, argnum);
6548 mono_mb_emit_ldloc (mb, conv_arg);
6549 mono_mb_emit_byte (mb, CEE_LDLEN);
6550 mono_mb_emit_icon (mb, esize);
6551 mono_mb_emit_byte (mb, CEE_MUL);
6552 mono_mb_emit_byte (mb, CEE_PREFIX1);
6553 mono_mb_emit_byte (mb, CEE_CPBLK);
6557 /* Emit marshalling loop */
6558 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6559 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6560 mono_mb_emit_stloc (mb, index_var);
6561 label2 = mono_mb_get_label (mb);
6562 mono_mb_emit_ldloc (mb, index_var);
6563 mono_mb_emit_ldloc (mb, conv_arg);
6564 mono_mb_emit_byte (mb, CEE_LDLEN);
6565 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6567 /* Emit marshalling code */
6569 g_assert (conv != -1);
6571 mono_mb_emit_ldloc (mb, conv_arg);
6572 mono_mb_emit_ldloc (mb, index_var);
6574 mono_mb_emit_ldloc (mb, src_ptr);
6575 mono_mb_emit_byte (mb, CEE_LDIND_I);
6577 mono_mb_emit_icall (mb, conv_to_icall (conv));
6578 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6581 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6582 mono_mb_emit_exception_marshal_directive (mb, msg);
6586 mono_mb_emit_add_to_local (mb, index_var, 1);
6587 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6589 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6591 mono_mb_patch_branch (mb, label1);
6592 mono_mb_patch_branch (mb, label3);
6596 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6598 guint32 label1, label2, label3;
6599 int index_var, dest_ptr, esize, param_num, num_elem;
6600 MonoMarshalConv conv;
6601 gboolean is_string = FALSE;
6604 /* Already handled in CONV_IN */
6607 /* These are already checked in CONV_IN */
6608 g_assert (!t->byref);
6609 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6610 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6612 param_num = spec->data.array_data.param_num;
6613 num_elem = spec->data.array_data.num_elem;
6615 if (spec->data.array_data.elem_mult == 0)
6616 /* param_num is not specified */
6619 if (param_num == -1) {
6620 if (num_elem <= 0) {
6621 g_assert_not_reached ();
6625 /* FIXME: Optimize blittable case */
6627 eklass = klass->element_class;
6628 if (eklass == mono_defaults.string_class) {
6630 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6632 else if (eklass == mono_defaults.stringbuilder_class) {
6634 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6637 conv = (MonoMarshalConv)-1;
6639 mono_marshal_load_type_info (eklass);
6642 esize = sizeof (gpointer);
6644 esize = mono_class_native_size (eklass, NULL);
6646 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6649 mono_mb_emit_ldloc (mb, conv_arg);
6650 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6652 mono_mb_emit_ldarg (mb, argnum);
6653 mono_mb_emit_stloc (mb, dest_ptr);
6655 if (eklass->blittable) {
6657 mono_mb_emit_ldarg (mb, argnum);
6659 mono_mb_emit_ldloc (mb, conv_arg);
6660 mono_mb_emit_byte (mb, CEE_CONV_I);
6661 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6662 mono_mb_emit_byte (mb, CEE_ADD);
6664 mono_mb_emit_ldloc (mb, conv_arg);
6665 mono_mb_emit_byte (mb, CEE_LDLEN);
6666 mono_mb_emit_icon (mb, esize);
6667 mono_mb_emit_byte (mb, CEE_MUL);
6668 mono_mb_emit_byte (mb, CEE_PREFIX1);
6669 mono_mb_emit_byte (mb, CEE_CPBLK);
6673 /* Emit marshalling loop */
6674 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6675 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6676 mono_mb_emit_stloc (mb, index_var);
6677 label2 = mono_mb_get_label (mb);
6678 mono_mb_emit_ldloc (mb, index_var);
6679 mono_mb_emit_ldloc (mb, conv_arg);
6680 mono_mb_emit_byte (mb, CEE_LDLEN);
6681 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6683 /* Emit marshalling code */
6685 g_assert (conv != -1);
6688 mono_mb_emit_ldloc (mb, dest_ptr);
6691 mono_mb_emit_ldloc (mb, conv_arg);
6692 mono_mb_emit_ldloc (mb, index_var);
6694 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6696 mono_mb_emit_icall (mb, conv_to_icall (conv));
6697 mono_mb_emit_byte (mb, CEE_STIND_I);
6700 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6701 mono_mb_emit_exception_marshal_directive (mb, msg);
6705 mono_mb_emit_add_to_local (mb, index_var, 1);
6706 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6708 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6710 mono_mb_patch_branch (mb, label1);
6711 mono_mb_patch_branch (mb, label3);
6715 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6717 guint32 label1, label2, label3;
6718 int index_var, src, dest, esize;
6719 MonoMarshalConv conv = (MonoMarshalConv)-1;
6720 gboolean is_string = FALSE;
6722 g_assert (!t->byref);
6724 eklass = klass->element_class;
6726 mono_marshal_load_type_info (eklass);
6728 if (eklass == mono_defaults.string_class) {
6730 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6733 g_assert_not_reached ();
6737 esize = sizeof (gpointer);
6738 else if (eklass == mono_defaults.char_class)
6739 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6741 esize = mono_class_native_size (eklass, NULL);
6743 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6744 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6746 mono_mb_emit_stloc (mb, src);
6747 mono_mb_emit_ldloc (mb, src);
6748 mono_mb_emit_stloc (mb, 3);
6750 /* Check for null */
6751 mono_mb_emit_ldloc (mb, src);
6752 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6754 /* Allocate native array */
6755 mono_mb_emit_icon (mb, esize);
6756 mono_mb_emit_ldloc (mb, src);
6757 mono_mb_emit_byte (mb, CEE_LDLEN);
6759 if (eklass == mono_defaults.string_class) {
6760 /* Make the array bigger for the terminating null */
6761 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6762 mono_mb_emit_byte (mb, CEE_ADD);
6764 mono_mb_emit_byte (mb, CEE_MUL);
6765 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6766 mono_mb_emit_stloc (mb, dest);
6767 mono_mb_emit_ldloc (mb, dest);
6768 mono_mb_emit_stloc (mb, 3);
6770 /* Emit marshalling loop */
6771 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6772 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6773 mono_mb_emit_stloc (mb, index_var);
6774 label2 = mono_mb_get_label (mb);
6775 mono_mb_emit_ldloc (mb, index_var);
6776 mono_mb_emit_ldloc (mb, src);
6777 mono_mb_emit_byte (mb, CEE_LDLEN);
6778 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6780 /* Emit marshalling code */
6782 g_assert (conv != -1);
6785 mono_mb_emit_ldloc (mb, dest);
6788 mono_mb_emit_ldloc (mb, src);
6789 mono_mb_emit_ldloc (mb, index_var);
6791 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6793 mono_mb_emit_icall (mb, conv_to_icall (conv));
6794 mono_mb_emit_byte (mb, CEE_STIND_I);
6797 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6798 mono_mb_emit_exception_marshal_directive (mb, msg);
6802 mono_mb_emit_add_to_local (mb, index_var, 1);
6803 mono_mb_emit_add_to_local (mb, dest, esize);
6805 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6807 mono_mb_patch_branch (mb, label3);
6808 mono_mb_patch_branch (mb, label1);
6812 g_assert_not_reached ();
6819 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6822 return &mono_defaults.int32_class->byval_arg;
6824 switch (spec->native) {
6825 case MONO_NATIVE_I1:
6826 case MONO_NATIVE_U1:
6827 return &mono_defaults.byte_class->byval_arg;
6828 case MONO_NATIVE_VARIANTBOOL:
6829 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6830 return &mono_defaults.int16_class->byval_arg;
6831 case MONO_NATIVE_BOOLEAN:
6832 return &mono_defaults.int32_class->byval_arg;
6834 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6835 return &mono_defaults.int32_class->byval_arg;
6841 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6843 MonoClass* conv_arg_class = mono_defaults.int32_class;
6845 switch (spec->native) {
6846 case MONO_NATIVE_I1:
6847 case MONO_NATIVE_U1:
6848 conv_arg_class = mono_defaults.byte_class;
6849 if (ldop) *ldop = CEE_LDIND_I1;
6851 case MONO_NATIVE_VARIANTBOOL:
6852 conv_arg_class = mono_defaults.int16_class;
6853 if (ldop) *ldop = CEE_LDIND_I2;
6855 case MONO_NATIVE_BOOLEAN:
6858 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6861 return conv_arg_class;
6865 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6866 MonoMarshalSpec *spec,
6867 int conv_arg, MonoType **conv_arg_type,
6868 MarshalAction action)
6872 case MARSHAL_ACTION_CONV_IN:
6874 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6876 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6879 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6880 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6882 *conv_arg_type = &conv_arg_class->this_arg;
6884 *conv_arg_type = &conv_arg_class->byval_arg;
6890 MonoMethodBuilder *mb = m->mb;
6893 case MARSHAL_ACTION_CONV_IN: {
6894 MonoType *local_type;
6896 guint8 ldc_op = CEE_LDC_I4_1;
6898 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6900 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6902 *conv_arg_type = local_type;
6903 conv_arg = mono_mb_add_local (mb, local_type);
6905 mono_mb_emit_ldarg (mb, argnum);
6907 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6908 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6909 mono_mb_emit_byte (mb, ldc_op);
6910 mono_mb_emit_stloc (mb, conv_arg);
6911 mono_mb_patch_branch (mb, label_false);
6916 case MARSHAL_ACTION_CONV_OUT:
6918 int label_false, label_end;
6922 mono_mb_emit_ldarg (mb, argnum);
6923 mono_mb_emit_ldloc (mb, conv_arg);
6925 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6926 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6928 label_end = mono_mb_emit_branch (mb, CEE_BR);
6929 mono_mb_patch_branch (mb, label_false);
6930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6931 mono_mb_patch_branch (mb, label_end);
6933 mono_mb_emit_byte (mb, CEE_STIND_I1);
6937 case MARSHAL_ACTION_PUSH:
6939 mono_mb_emit_ldloc_addr (mb, conv_arg);
6941 mono_mb_emit_ldloc (mb, conv_arg);
6943 mono_mb_emit_ldarg (mb, argnum);
6946 case MARSHAL_ACTION_CONV_RESULT:
6947 /* maybe we need to make sure that it fits within 8 bits */
6948 mono_mb_emit_stloc (mb, 3);
6951 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6952 MonoClass* conv_arg_class = mono_defaults.int32_class;
6953 guint8 ldop = CEE_LDIND_I4;
6954 int label_null, label_false;
6956 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6957 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6960 *conv_arg_type = &conv_arg_class->this_arg;
6962 *conv_arg_type = &conv_arg_class->byval_arg;
6965 mono_mb_emit_ldarg (mb, argnum);
6969 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6970 mono_mb_emit_ldarg (mb, argnum);
6971 mono_mb_emit_byte (mb, ldop);
6975 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6976 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6977 mono_mb_emit_stloc (mb, conv_arg);
6978 mono_mb_patch_branch (mb, label_false);
6981 mono_mb_patch_branch (mb, label_null);
6985 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6986 guint8 stop = CEE_STIND_I4;
6987 guint8 ldc_op = CEE_LDC_I4_1;
6988 int label_null,label_false, label_end;;
6993 switch (spec->native) {
6994 case MONO_NATIVE_I1:
6995 case MONO_NATIVE_U1:
6996 stop = CEE_STIND_I1;
6998 case MONO_NATIVE_VARIANTBOOL:
6999 stop = CEE_STIND_I2;
7000 ldc_op = CEE_LDC_I4_M1;
7008 mono_mb_emit_ldarg (mb, argnum);
7009 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7011 mono_mb_emit_ldarg (mb, argnum);
7012 mono_mb_emit_ldloc (mb, conv_arg);
7014 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7015 mono_mb_emit_byte (mb, ldc_op);
7016 label_end = mono_mb_emit_branch (mb, CEE_BR);
7018 mono_mb_patch_branch (mb, label_false);
7019 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7020 mono_mb_patch_branch (mb, label_end);
7022 mono_mb_emit_byte (mb, stop);
7023 mono_mb_patch_branch (mb, label_null);
7028 g_assert_not_reached ();
7035 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7036 MonoMarshalSpec *spec, int conv_arg,
7037 MonoType **conv_arg_type, MarshalAction action)
7040 MonoMethodBuilder *mb = m->mb;
7043 case MARSHAL_ACTION_CONV_IN:
7044 /* MS seems to allow this in some cases, ie. bxc #158 */
7046 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7047 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7048 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7053 case MARSHAL_ACTION_PUSH:
7054 mono_mb_emit_ldarg (mb, argnum);
7057 case MARSHAL_ACTION_CONV_RESULT:
7058 /* no conversions necessary */
7059 mono_mb_emit_stloc (mb, 3);
7070 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7071 MonoMarshalSpec *spec, int conv_arg,
7072 MonoType **conv_arg_type, MarshalAction action)
7075 MonoMethodBuilder *mb = m->mb;
7078 case MARSHAL_ACTION_PUSH:
7079 /* fixme: dont know how to marshal that. We cant simply
7080 * convert it to a one byte UTF8 character, because an
7081 * unicode character may need more that one byte in UTF8 */
7082 mono_mb_emit_ldarg (mb, argnum);
7085 case MARSHAL_ACTION_CONV_RESULT:
7086 /* fixme: we need conversions here */
7087 mono_mb_emit_stloc (mb, 3);
7098 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7099 MonoMarshalSpec *spec, int conv_arg,
7100 MonoType **conv_arg_type, MarshalAction action)
7103 MonoMethodBuilder *mb = m->mb;
7106 case MARSHAL_ACTION_PUSH:
7107 mono_mb_emit_ldarg (mb, argnum);
7110 case MARSHAL_ACTION_CONV_RESULT:
7111 /* no conversions necessary */
7112 mono_mb_emit_stloc (mb, 3);
7123 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7124 MonoMarshalSpec *spec, int conv_arg,
7125 MonoType **conv_arg_type, MarshalAction action)
7127 /* Ensure that we have marshalling info for this param */
7128 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7130 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7131 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7133 if (spec && spec->native == MONO_NATIVE_ASANY)
7134 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7137 case MONO_TYPE_VALUETYPE:
7138 if (t->data.klass == mono_defaults.handleref_class)
7139 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7141 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7142 case MONO_TYPE_STRING:
7143 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7144 case MONO_TYPE_CLASS:
7145 case MONO_TYPE_OBJECT:
7147 if (spec && spec->native == MONO_NATIVE_STRUCT)
7148 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7150 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7151 spec->native == MONO_NATIVE_IDISPATCH ||
7152 spec->native == MONO_NATIVE_INTERFACE))
7153 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7154 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7155 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7156 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7157 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7160 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7161 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7162 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7164 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7165 case MONO_TYPE_ARRAY:
7166 case MONO_TYPE_SZARRAY:
7167 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7168 case MONO_TYPE_BOOLEAN:
7169 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7171 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7172 case MONO_TYPE_CHAR:
7173 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7186 case MONO_TYPE_FNPTR:
7187 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7188 case MONO_TYPE_GENERICINST:
7189 if (mono_type_generic_inst_is_valuetype (t))
7190 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7192 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7200 * mono_marshal_emit_native_wrapper:
7201 * @image: the image to use for looking up custom marshallers
7202 * @sig: The signature of the native function
7203 * @piinfo: Marshalling information
7204 * @mspecs: Marshalling information
7205 * @aot: whenever the created method will be compiled by the AOT compiler
7206 * @method: if non-NULL, the pinvoke method to call
7207 * @check_exceptions: Whenever to check for pending exceptions after the native call
7208 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7210 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7213 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)
7215 EmitMarshalContext m;
7216 MonoMethodSignature *csig;
7218 int i, argnum, *tmp_locals;
7219 int type, param_shift = 0;
7220 static MonoMethodSignature *get_last_error_sig = NULL;
7221 int coop_gc_stack_dummy, coop_gc_var;
7223 memset (&m, 0, sizeof (m));
7228 /* we copy the signature, so that we can set pinvoke to 0 */
7230 /* The function address is passed as the first argument */
7231 g_assert (!sig->hasthis);
7234 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7242 /* we allocate local for use with emit_struct_conv() */
7243 /* allocate local 0 (pointer) src_ptr */
7244 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7245 /* allocate local 1 (pointer) dst_ptr */
7246 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7247 /* allocate local 2 (boolean) delete_old */
7248 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7250 /* delete_old = FALSE */
7251 mono_mb_emit_icon (mb, 0);
7252 mono_mb_emit_stloc (mb, 2);
7254 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7255 /* allocate local 3 to store the return value */
7256 mono_mb_add_local (mb, sig->ret);
7259 if (mono_threads_is_coop_enabled ()) {
7260 /* local 4, dummy local used to get a stack address for suspend funcs */
7261 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7262 /* local 5, the local to be used when calling the suspend funcs */
7263 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7266 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7267 /* Return type custom marshaling */
7269 * Since we can't determine the return type of the unmanaged function,
7270 * we assume it returns a pointer, and pass that pointer to
7271 * MarshalNativeToManaged.
7273 csig->ret = &mono_defaults.int_class->byval_arg;
7276 /* we first do all conversions */
7277 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7278 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7280 for (i = 0; i < sig->param_count; i ++) {
7281 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7284 /* push all arguments */
7287 mono_mb_emit_byte (mb, CEE_LDARG_0);
7289 for (i = 0; i < sig->param_count; i++) {
7290 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7293 if (mono_threads_is_coop_enabled ()) {
7294 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7295 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7296 mono_mb_emit_stloc (mb, coop_gc_var);
7299 /* call the native method */
7301 mono_mb_emit_byte (mb, CEE_LDARG_0);
7302 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7303 mono_mb_emit_byte (mb, CEE_LDIND_I);
7304 mono_mb_emit_calli (mb, csig);
7305 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7307 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7309 g_assert_not_reached ();
7314 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7315 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7316 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7317 mono_mb_emit_calli (mb, csig);
7319 mono_mb_emit_native_call (mb, csig, func);
7323 /* Set LastError if needed */
7324 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7325 if (!get_last_error_sig) {
7326 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7327 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7328 get_last_error_sig->pinvoke = 1;
7333 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7334 * clobber its value.
7336 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7337 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7339 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7343 if (mono_threads_is_coop_enabled ()) {
7344 mono_mb_emit_ldloc (mb, coop_gc_var);
7345 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7346 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7349 /* convert the result */
7350 if (!sig->ret->byref) {
7351 MonoMarshalSpec *spec = mspecs [0];
7352 type = sig->ret->type;
7354 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7355 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7360 case MONO_TYPE_VOID:
7362 case MONO_TYPE_VALUETYPE:
7363 klass = sig->ret->data.klass;
7364 if (klass->enumtype) {
7365 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7368 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7382 case MONO_TYPE_FNPTR:
7383 case MONO_TYPE_STRING:
7384 case MONO_TYPE_CLASS:
7385 case MONO_TYPE_OBJECT:
7386 case MONO_TYPE_BOOLEAN:
7387 case MONO_TYPE_ARRAY:
7388 case MONO_TYPE_SZARRAY:
7389 case MONO_TYPE_CHAR:
7391 case MONO_TYPE_GENERICINST:
7392 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7394 case MONO_TYPE_TYPEDBYREF:
7396 g_warning ("return type 0x%02x unknown", sig->ret->type);
7397 g_assert_not_reached ();
7401 mono_mb_emit_stloc (mb, 3);
7405 * Need to call this after converting the result since MONO_VTADDR needs
7406 * to be adjacent to the call instruction.
7408 if (check_exceptions)
7409 emit_thread_interrupt_checkpoint (mb);
7411 /* we need to convert byref arguments back and free string arrays */
7412 for (i = 0; i < sig->param_count; i++) {
7413 MonoType *t = sig->params [i];
7414 MonoMarshalSpec *spec = mspecs [i + 1];
7416 argnum = i + param_shift;
7418 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7419 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7424 case MONO_TYPE_STRING:
7425 case MONO_TYPE_VALUETYPE:
7426 case MONO_TYPE_CLASS:
7427 case MONO_TYPE_OBJECT:
7428 case MONO_TYPE_SZARRAY:
7429 case MONO_TYPE_BOOLEAN:
7430 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7437 if (!MONO_TYPE_IS_VOID(sig->ret))
7438 mono_mb_emit_ldloc (mb, 3);
7440 mono_mb_emit_byte (mb, CEE_RET);
7442 #endif /* DISABLE_JIT */
7445 * mono_marshal_get_native_wrapper:
7446 * @method: The MonoMethod to wrap.
7447 * @check_exceptions: Whenever to check for pending exceptions
7449 * generates IL code for the pinvoke wrapper (the generated method
7450 * calls the unmanaged code in piinfo->addr)
7451 * The wrapper info for the wrapper is a WrapperInfo structure.
7454 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7456 MonoMethodSignature *sig, *csig;
7457 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7458 MonoMethodBuilder *mb;
7459 MonoMarshalSpec **mspecs;
7462 gboolean pinvoke = FALSE;
7465 const char *exc_class = "MissingMethodException";
7466 const char *exc_arg = NULL;
7469 g_assert (method != NULL);
7470 g_assert (mono_method_signature (method)->pinvoke);
7472 GHashTable **cache_ptr;
7475 if (check_exceptions)
7476 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7478 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7480 if (check_exceptions)
7481 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7483 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7486 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7488 if ((res = mono_marshal_find_in_cache (cache, method)))
7491 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7492 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7496 return mono_cominterop_get_native_wrapper (method);
7498 g_assert_not_reached ();
7502 sig = mono_method_signature (method);
7504 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7505 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7508 if (!piinfo->addr) {
7510 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7511 exc_arg = "Method contains unsupported native code";
7513 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7515 piinfo->addr = mono_lookup_internal_call (method);
7519 /* hack - redirect certain string constructors to CreateString */
7520 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7521 g_assert (!pinvoke);
7522 g_assert (method->string_ctor);
7523 g_assert (sig->hasthis);
7525 /* CreateString returns a value */
7526 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7527 csig->ret = &mono_defaults.string_class->byval_arg;
7531 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7532 if (!strcmp ("CreateString", res->name) &&
7533 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7536 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7537 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7539 /* create a wrapper to preserve .ctor in stack trace */
7540 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7543 mono_mb_emit_byte (mb, CEE_LDARG_0);
7544 for (i = 1; i <= csig->param_count; i++)
7545 mono_mb_emit_ldarg (mb, i);
7546 mono_mb_emit_managed_call (mb, res, NULL);
7547 mono_mb_emit_byte (mb, CEE_RET);
7550 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7551 info->d.string_ctor.method = method;
7553 /* use native_wrapper_cache because internal calls are looked up there */
7554 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7555 csig->param_count + 1, info, NULL);
7562 /* exception will be thrown */
7563 piinfo->addr = NULL;
7564 g_warning ("cannot find CreateString for .ctor");
7567 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7569 mb->method->save_lmf = 1;
7572 * In AOT mode and embedding scenarios, it is possible that the icall is not
7573 * registered in the runtime doing the AOT compilation.
7575 if (!piinfo->addr && !aot) {
7577 mono_mb_emit_exception (mb, exc_class, exc_arg);
7579 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7580 info->d.managed_to_native.method = method;
7582 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7584 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7585 csig->param_count + 16, info, NULL);
7591 /* internal calls: we simply push all arguments and call the method (no conversions) */
7592 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7594 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7596 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7598 /* hack - string constructors returns a value */
7599 if (method->string_ctor)
7600 csig->ret = &mono_defaults.string_class->byval_arg;
7607 * Add a null check since public icalls can be called with 'call' which
7608 * does no such check.
7610 mono_mb_emit_byte (mb, CEE_LDARG_0);
7611 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7612 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7613 mono_mb_patch_branch (mb, pos);
7615 mono_mb_emit_byte (mb, CEE_LDARG_0);
7618 for (i = 0; i < sig->param_count; i++)
7619 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7622 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7623 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7624 mono_mb_emit_calli (mb, csig);
7626 g_assert (piinfo->addr);
7627 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7629 if (check_exceptions)
7630 emit_thread_interrupt_checkpoint (mb);
7631 mono_mb_emit_byte (mb, CEE_RET);
7633 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7634 info->d.managed_to_native.method = method;
7636 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7638 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7647 g_assert (piinfo->addr);
7650 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7651 mono_method_get_marshal_info (method, mspecs);
7653 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7655 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7656 info->d.managed_to_native.method = method;
7658 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7660 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7665 for (i = sig->param_count; i >= 0; i--)
7667 mono_metadata_free_marshal_spec (mspecs [i]);
7671 /* mono_method_print_code (res); */
7677 * mono_marshal_get_native_func_wrapper:
7678 * @image: The image to use for memory allocation and for looking up custom marshallers.
7679 * @sig: The signature of the function
7680 * @func: The native function to wrap
7682 * Returns a wrapper method around native functions, similar to the pinvoke
7686 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7687 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7689 MonoMethodSignature *csig;
7691 SignaturePointerPair key, *new_key;
7692 MonoMethodBuilder *mb;
7701 // Generic types are not safe to place in MonoImage caches.
7702 g_assert (!sig->is_inflated);
7704 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7705 if ((res = mono_marshal_find_in_cache (cache, &key)))
7708 name = g_strdup_printf ("wrapper_native_%p", func);
7709 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7710 mb->method->save_lmf = 1;
7713 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7716 csig = mono_metadata_signature_dup_full (image, sig);
7719 new_key = g_new (SignaturePointerPair,1);
7720 new_key->sig = csig;
7721 new_key->pointer = func;
7723 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7729 mono_marshal_set_wrapper_info (res, NULL);
7735 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7739 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7741 MonoMethodSignature *sig, *csig;
7742 MonoMethodBuilder *mb;
7747 MonoMethodPInvoke mpiinfo;
7748 MonoMethodPInvoke *piinfo = &mpiinfo;
7749 MonoMarshalSpec **mspecs;
7750 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7751 MonoImage *image = invoke->klass->image;
7754 // FIXME: include UnmanagedFunctionPointerAttribute info
7757 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7759 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7761 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7764 memset (&mpiinfo, 0, sizeof (mpiinfo));
7765 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7767 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7768 mono_method_get_marshal_info (invoke, mspecs);
7769 /* Freed below so don't alloc from mempool */
7770 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7773 name = g_strdup_printf ("wrapper_aot_native");
7774 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7775 mb->method->save_lmf = 1;
7778 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7781 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7782 info->d.managed_to_native.method = invoke;
7784 g_assert (!sig->hasthis);
7785 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7787 res = mono_mb_create_and_cache_full (cache, invoke,
7788 mb, csig, csig->param_count + 16,
7792 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7794 mono_metadata_free_marshal_spec (mspecs [i]);
7802 * mono_marshal_emit_managed_wrapper:
7804 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7805 * the delegate which wraps the managed method to be called. For closed delegates,
7806 * it could have fewer parameters than the method it wraps.
7807 * THIS_LOC is the memory location where the target of the delegate is stored.
7810 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7813 MonoMethodSignature *sig, *csig;
7819 /* we first do all conversions */
7820 for (i = 0; i < sig->param_count; i ++) {
7821 MonoType *t = sig->params [i];
7824 case MONO_TYPE_OBJECT:
7825 case MONO_TYPE_CLASS:
7826 case MONO_TYPE_VALUETYPE:
7827 case MONO_TYPE_ARRAY:
7828 case MONO_TYPE_SZARRAY:
7829 case MONO_TYPE_STRING:
7830 case MONO_TYPE_BOOLEAN:
7831 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7835 if (!sig->ret->byref) {
7836 switch (sig->ret->type) {
7837 case MONO_TYPE_STRING:
7838 csig->ret = &mono_defaults.int_class->byval_arg;
7845 MonoMethodSignature *sig, *csig;
7846 MonoExceptionClause *clause;
7849 gboolean closed = FALSE;
7854 /* allocate local 0 (pointer) src_ptr */
7855 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7856 /* allocate local 1 (pointer) dst_ptr */
7857 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7858 /* allocate local 2 (boolean) delete_old */
7859 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7861 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7862 /* Closed delegate */
7863 g_assert (sig->param_count == invoke_sig->param_count + 1);
7865 /* Use a new signature without the first argument */
7866 sig = mono_metadata_signature_dup (sig);
7867 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7868 sig->param_count --;
7871 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7872 /* allocate local 3 to store the return value */
7873 mono_mb_add_local (mb, sig->ret);
7878 * mono_jit_attach ();
7882 * ret = method (...);
7884 * mono_jit_detach ();
7890 if (mono_threads_is_coop_enabled ()) {
7891 clause = g_new0 (MonoExceptionClause, 1);
7892 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7895 mono_mb_emit_icon (mb, 0);
7896 mono_mb_emit_stloc (mb, 2);
7898 if (mono_threads_is_coop_enabled ()) {
7900 clause->try_offset = mono_mb_get_label (mb);
7904 * Might need to attach the thread to the JIT or change the
7905 * domain for the callback.
7907 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7909 * mono_jit_attach ();
7911 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7912 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7914 /* <interrupt check> */
7915 emit_thread_interrupt_checkpoint (mb);
7917 /* we first do all conversions */
7918 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7919 for (i = 0; i < sig->param_count; i ++) {
7920 MonoType *t = sig->params [i];
7923 case MONO_TYPE_OBJECT:
7924 case MONO_TYPE_CLASS:
7925 case MONO_TYPE_VALUETYPE:
7926 case MONO_TYPE_ARRAY:
7927 case MONO_TYPE_SZARRAY:
7928 case MONO_TYPE_STRING:
7929 case MONO_TYPE_BOOLEAN:
7930 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7940 if (target_handle) {
7941 mono_mb_emit_icon (mb, (gint32)target_handle);
7942 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7945 g_assert_not_reached ();
7947 } else if (closed) {
7948 mono_mb_emit_icon (mb, (gint32)target_handle);
7949 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7952 for (i = 0; i < sig->param_count; i++) {
7953 MonoType *t = sig->params [i];
7955 if (tmp_locals [i]) {
7957 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7959 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7962 mono_mb_emit_ldarg (mb, i);
7965 /* ret = method (...) */
7966 mono_mb_emit_managed_call (mb, method, NULL);
7968 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7969 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7970 } else if (!sig->ret->byref) {
7971 switch (sig->ret->type) {
7972 case MONO_TYPE_VOID:
7974 case MONO_TYPE_BOOLEAN:
7977 case MONO_TYPE_CHAR:
7989 case MONO_TYPE_OBJECT:
7990 mono_mb_emit_stloc (mb, 3);
7992 case MONO_TYPE_STRING:
7993 csig->ret = &mono_defaults.int_class->byval_arg;
7994 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7996 case MONO_TYPE_VALUETYPE:
7997 case MONO_TYPE_CLASS:
7998 case MONO_TYPE_SZARRAY:
7999 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8002 g_warning ("return type 0x%02x unknown", sig->ret->type);
8003 g_assert_not_reached ();
8006 mono_mb_emit_stloc (mb, 3);
8009 /* Convert byref arguments back */
8010 for (i = 0; i < sig->param_count; i ++) {
8011 MonoType *t = sig->params [i];
8012 MonoMarshalSpec *spec = mspecs [i + 1];
8014 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8015 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8017 else if (t->byref) {
8019 case MONO_TYPE_CLASS:
8020 case MONO_TYPE_VALUETYPE:
8021 case MONO_TYPE_OBJECT:
8022 case MONO_TYPE_STRING:
8023 case MONO_TYPE_BOOLEAN:
8024 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8030 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8031 /* The [Out] information is encoded in the delegate signature */
8033 case MONO_TYPE_SZARRAY:
8034 case MONO_TYPE_CLASS:
8035 case MONO_TYPE_VALUETYPE:
8036 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8039 g_assert_not_reached ();
8044 if (mono_threads_is_coop_enabled ()) {
8045 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8048 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8049 clause->handler_offset = mono_mb_get_label (mb);
8053 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8055 * mono_jit_detach ();
8057 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8058 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8060 if (mono_threads_is_coop_enabled ()) {
8061 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8063 /* } [endfinally] */
8064 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8066 mono_mb_patch_branch (mb, leave_pos);
8070 if (m->retobj_var) {
8071 mono_mb_emit_ldloc (mb, m->retobj_var);
8072 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8073 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8076 if (!MONO_TYPE_IS_VOID(sig->ret))
8077 mono_mb_emit_ldloc (mb, 3);
8078 mono_mb_emit_byte (mb, CEE_RET);
8081 if (mono_threads_is_coop_enabled ()) {
8082 mono_mb_set_clauses (mb, 1, clause);
8091 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8093 MonoMethodSignature *sig;
8098 * Under windows, delegates passed to native code must use the STDCALL
8099 * calling convention.
8101 csig->call_convention = MONO_CALL_STDCALL;
8104 sig = mono_method_signature (method);
8106 /* Change default calling convention if needed */
8107 /* Why is this a modopt ? */
8108 if (sig->ret && sig->ret->num_mods) {
8109 for (i = 0; i < sig->ret->num_mods; ++i) {
8111 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8112 g_assert (mono_error_ok (&error));
8113 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8114 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8115 csig->call_convention = MONO_CALL_C;
8116 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8117 csig->call_convention = MONO_CALL_STDCALL;
8118 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8119 csig->call_convention = MONO_CALL_FASTCALL;
8120 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8121 csig->call_convention = MONO_CALL_THISCALL;
8128 * generates IL code to call managed methods from unmanaged code
8129 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8132 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8134 MonoMethodSignature *sig, *csig, *invoke_sig;
8135 MonoMethodBuilder *mb;
8136 MonoMethod *res, *invoke;
8137 MonoMarshalSpec **mspecs;
8138 MonoMethodPInvoke piinfo;
8141 EmitMarshalContext m;
8143 g_assert (method != NULL);
8144 g_assert (!mono_method_signature (method)->pinvoke);
8147 * FIXME: Should cache the method+delegate type pair, since the same method
8148 * could be called with different delegates, thus different marshalling
8151 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8153 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8156 invoke = mono_get_delegate_invoke (delegate_klass);
8157 invoke_sig = mono_method_signature (invoke);
8159 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8160 mono_method_get_marshal_info (invoke, mspecs);
8162 sig = mono_method_signature (method);
8164 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8166 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8167 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8169 /* we copy the signature, so that we can modify it */
8171 /* Need to free this later */
8172 csig = mono_metadata_signature_dup (invoke_sig);
8174 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8178 memset (&m, 0, sizeof (m));
8184 m.image = method->klass->image;
8186 mono_marshal_set_callconv_from_modopt (invoke, csig);
8188 /* The attribute is only available in Net 2.0 */
8189 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8190 MonoCustomAttrInfo *cinfo;
8191 MonoCustomAttrEntry *attr;
8194 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8195 * contents of the attribute without constructing it, as that might not be
8196 * possible when running in cross-compiling mode.
8198 cinfo = mono_custom_attrs_from_class (delegate_klass);
8201 for (i = 0; i < cinfo->num_attrs; ++i) {
8202 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8203 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8204 attr = &cinfo->attrs [i];
8210 MonoArray *typed_args, *named_args;
8211 CattrNamedArg *arginfo;
8215 MonoBoolean set_last_error = 0;
8218 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8219 g_assert (mono_error_ok (&error));
8220 g_assert (mono_array_length (typed_args) == 1);
8223 o = mono_array_get (typed_args, MonoObject*, 0);
8224 call_conv = *(gint32*)mono_object_unbox (o);
8227 for (i = 0; i < mono_array_length (named_args); ++i) {
8228 CattrNamedArg *narg = &arginfo [i];
8230 o = mono_array_get (named_args, MonoObject*, i);
8232 g_assert (narg->field);
8233 if (!strcmp (narg->field->name, "CharSet")) {
8234 charset = *(gint32*)mono_object_unbox (o);
8235 } else if (!strcmp (narg->field->name, "SetLastError")) {
8236 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8237 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8238 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8239 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8240 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8242 g_assert_not_reached ();
8248 memset (&piinfo, 0, sizeof (piinfo));
8250 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8252 csig->call_convention = call_conv - 1;
8255 if (cinfo && !cinfo->cached)
8256 mono_custom_attrs_free (cinfo);
8259 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8261 if (!target_handle) {
8264 // FIXME: Associate it with the method+delegate_klass pair
8265 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8266 info->d.native_to_managed.method = method;
8267 info->d.native_to_managed.klass = delegate_klass;
8269 res = mono_mb_create_and_cache_full (cache, method,
8270 mb, csig, sig->param_count + 16,
8276 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8280 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8282 mono_metadata_free_marshal_spec (mspecs [i]);
8285 /* mono_method_print_code (res); */
8291 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8295 MonoMethodSignature *sig;
8296 MonoMethodBuilder *mb;
8301 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8303 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8306 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8307 MonoMethodSignature *csig;
8308 MonoMarshalSpec **mspecs;
8309 EmitMarshalContext m;
8311 sig = mono_method_signature (method);
8312 g_assert (!sig->hasthis);
8314 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8315 mono_method_get_marshal_info (method, mspecs);
8317 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8318 csig = mono_metadata_signature_dup_full (image, sig);
8322 memset (&m, 0, sizeof (m));
8330 mono_marshal_set_callconv_from_modopt (method, csig);
8332 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8334 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8339 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8342 for (i = sig->param_count; i >= 0; i--)
8344 mono_metadata_free_marshal_spec (mspecs [i]);
8347 return mono_compile_method (method);
8350 sig = mono_method_signature (method);
8351 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8353 param_count = sig->param_count + sig->hasthis;
8355 for (i = 0; i < param_count; i++)
8356 mono_mb_emit_ldarg (mb, i);
8358 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8359 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8361 mono_mb_emit_op (mb, CEE_CALL, method);
8362 mono_mb_emit_byte (mb, CEE_RET);
8367 method = mono_mb_create (mb, sig, param_count, NULL);
8370 return mono_compile_method (method);
8376 * The code directly following this is the cache hit, value positive branch
8378 * This function takes a new method builder with 0 locals and adds two locals
8379 * to create multiple out-branches and the fall through state of having the object
8380 * on the stack after a cache miss
8383 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8384 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8385 MonoMethodBuilder *mb)
8389 /* allocate local 0 (pointer) obj_vtable */
8390 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8391 /* allocate local 1 (pointer) cached_vtable */
8392 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8395 mono_mb_emit_ldarg (mb, obj_arg_position);
8396 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8398 /*obj_vtable = obj->vtable;*/
8399 mono_mb_emit_ldarg (mb, obj_arg_position);
8400 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8401 mono_mb_emit_byte (mb, CEE_LDIND_I);
8402 mono_mb_emit_stloc (mb, 0);
8404 /* cached_vtable = *cache*/
8405 mono_mb_emit_ldarg (mb, cache_arg_position);
8406 mono_mb_emit_byte (mb, CEE_LDIND_I);
8407 mono_mb_emit_stloc (mb, 1);
8409 mono_mb_emit_ldloc (mb, 1);
8410 mono_mb_emit_byte (mb, CEE_LDC_I4);
8411 mono_mb_emit_i4 (mb, ~0x1);
8412 mono_mb_emit_byte (mb, CEE_CONV_I);
8413 mono_mb_emit_byte (mb, CEE_AND);
8414 mono_mb_emit_ldloc (mb, 0);
8415 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8416 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8418 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8419 mono_mb_emit_ldloc (mb, 1);
8420 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8421 mono_mb_emit_byte (mb, CEE_CONV_U);
8422 mono_mb_emit_byte (mb, CEE_AND);
8423 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8424 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8427 mono_mb_patch_branch (mb, cache_miss_pos);
8430 mono_mb_emit_ldarg (mb, obj_arg_position);
8431 mono_mb_emit_ldarg (mb, class_arg_position);
8432 mono_mb_emit_ldarg (mb, cache_arg_position);
8433 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8436 #endif /* DISABLE_JIT */
8439 * This does the equivalent of mono_object_castclass_with_cache.
8440 * The wrapper info for the wrapper is a WrapperInfo structure.
8443 mono_marshal_get_castclass_with_cache (void)
8445 static MonoMethod *cached;
8447 MonoMethodBuilder *mb;
8448 MonoMethodSignature *sig;
8449 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8452 const int obj_arg_position = 0;
8453 const int class_arg_position = 1;
8454 const int cache_arg_position = 2;
8459 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8460 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8461 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8462 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8463 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8464 sig->ret = &mono_defaults.object_class->byval_arg;
8468 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8469 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8470 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8473 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8474 mono_mb_emit_ldarg (mb, obj_arg_position);
8475 mono_mb_emit_byte (mb, CEE_RET);
8478 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8479 mono_mb_patch_branch (mb, invalid_cast_pos);
8480 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8483 mono_mb_patch_branch (mb, return_null_pos);
8484 mono_mb_emit_byte (mb, CEE_LDNULL);
8485 mono_mb_emit_byte (mb, CEE_RET);
8486 #endif /* DISABLE_JIT */
8488 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8489 res = mono_mb_create (mb, sig, 8, info);
8492 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8493 mono_free_method (res);
8494 mono_metadata_free_method_signature (sig);
8502 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8504 MonoObject *isinst = mono_object_isinst (obj, klass);
8506 #ifndef DISABLE_REMOTING
8507 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8511 uintptr_t cache_update = (uintptr_t)obj->vtable;
8513 cache_update = cache_update | 0x1;
8515 *cache = cache_update;
8521 * This does the equivalent of mono_object_isinst_with_cache.
8522 * The wrapper info for the wrapper is a WrapperInfo structure.
8525 mono_marshal_get_isinst_with_cache (void)
8527 static MonoMethod *cached;
8529 MonoMethodBuilder *mb;
8530 MonoMethodSignature *sig;
8531 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8534 const int obj_arg_position = 0;
8535 const int class_arg_position = 1;
8536 const int cache_arg_position = 2;
8541 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8542 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8544 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8546 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8548 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8549 sig->ret = &mono_defaults.object_class->byval_arg;
8553 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8554 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8555 // Return the object gotten via the slow path.
8556 mono_mb_emit_byte (mb, CEE_RET);
8559 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8560 mono_mb_patch_branch (mb, return_null_pos);
8561 mono_mb_emit_byte (mb, CEE_LDNULL);
8562 mono_mb_emit_byte (mb, CEE_RET);
8565 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8566 mono_mb_emit_ldarg (mb, 0);
8567 mono_mb_emit_byte (mb, CEE_RET);
8570 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8571 res = mono_mb_create (mb, sig, 8, info);
8574 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8575 mono_free_method (res);
8576 mono_metadata_free_method_signature (sig);
8584 * mono_marshal_get_isinst:
8585 * @klass: the type of the field
8587 * This method generates a function which can be used to check if an object is
8588 * an instance of the given type, icluding the case where the object is a proxy.
8589 * The generated function has the following signature:
8590 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8593 mono_marshal_get_isinst (MonoClass *klass)
8595 static MonoMethodSignature *isint_sig = NULL;
8599 int pos_was_ok, pos_end;
8600 #ifndef DISABLE_REMOTING
8601 int pos_end2, pos_failed;
8604 MonoMethodBuilder *mb;
8606 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8607 if ((res = mono_marshal_find_in_cache (cache, klass)))
8611 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8612 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8613 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8614 isint_sig->pinvoke = 0;
8617 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8618 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8621 mb->method->save_lmf = 1;
8624 /* check if the object is a proxy that needs special cast */
8625 mono_mb_emit_ldarg (mb, 0);
8626 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8627 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8629 /* The result of MONO_CISINST can be:
8630 0) the type check succeeded
8631 1) the type check did not succeed
8632 2) a CanCastTo call is needed */
8633 #ifndef DISABLE_REMOTING
8634 mono_mb_emit_byte (mb, CEE_DUP);
8635 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8637 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8638 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8640 /* get the real proxy from the transparent proxy*/
8642 mono_mb_emit_ldarg (mb, 0);
8643 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8644 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8648 mono_mb_patch_branch (mb, pos_failed);
8649 mono_mb_emit_byte (mb, CEE_LDNULL);
8650 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8654 mono_mb_patch_branch (mb, pos_was_ok);
8655 mono_mb_emit_byte (mb, CEE_POP);
8656 mono_mb_emit_ldarg (mb, 0);
8660 mono_mb_patch_branch (mb, pos_end);
8661 mono_mb_patch_branch (mb, pos_end2);
8662 mono_mb_emit_byte (mb, CEE_RET);
8664 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8668 mono_mb_emit_byte (mb, CEE_LDNULL);
8669 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8673 mono_mb_patch_branch (mb, pos_was_ok);
8674 mono_mb_emit_ldarg (mb, 0);
8678 mono_mb_patch_branch (mb, pos_end);
8679 mono_mb_emit_byte (mb, CEE_RET);
8680 #endif /* DISABLE_REMOTING */
8681 #endif /* DISABLE_JIT */
8683 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8684 info->d.proxy.klass = klass;
8685 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8692 * mono_marshal_get_castclass:
8693 * @klass: the type of the field
8695 * This method generates a function which can be used to cast an object to
8696 * an instance of the given type, icluding the case where the object is a proxy.
8697 * The generated function has the following signature:
8698 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8699 * The wrapper info for the wrapper is a WrapperInfo structure.
8702 mono_marshal_get_castclass (MonoClass *klass)
8704 static MonoMethodSignature *castclass_sig = NULL;
8707 #ifndef DISABLE_REMOTING
8708 int pos_was_ok, pos_was_ok2;
8711 MonoMethodBuilder *mb;
8714 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8715 if ((res = mono_marshal_find_in_cache (cache, klass)))
8718 if (!castclass_sig) {
8719 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8720 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8721 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8722 castclass_sig->pinvoke = 0;
8725 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8726 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8729 mb->method->save_lmf = 1;
8732 /* check if the object is a proxy that needs special cast */
8733 mono_mb_emit_ldarg (mb, 0);
8734 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8735 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8737 /* The result of MONO_CCASTCLASS can be:
8738 0) the cast is valid
8739 1) cast of unknown proxy type
8740 or an exception if the cast is is invalid
8742 #ifndef DISABLE_REMOTING
8743 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8745 /* get the real proxy from the transparent proxy*/
8747 mono_mb_emit_ldarg (mb, 0);
8748 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8749 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8752 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8755 mono_mb_patch_branch (mb, pos_was_ok);
8756 mono_mb_patch_branch (mb, pos_was_ok2);
8758 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8759 mono_mb_emit_byte (mb, CEE_POP);
8760 #endif /* DISABLE_REMOTING */
8762 mono_mb_emit_ldarg (mb, 0);
8765 mono_mb_emit_byte (mb, CEE_RET);
8766 #endif /* DISABLE_JIT */
8768 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8770 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8778 * mono_marshal_get_struct_to_ptr:
8781 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8782 * The wrapper info for the wrapper is a WrapperInfo structure.
8785 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8787 MonoMethodBuilder *mb;
8788 static MonoMethod *stoptr = NULL;
8792 g_assert (klass != NULL);
8794 mono_marshal_load_type_info (klass);
8796 if (klass->marshal_info->str_to_ptr)
8797 return klass->marshal_info->str_to_ptr;
8800 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8803 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8806 if (klass->blittable) {
8807 mono_mb_emit_byte (mb, CEE_LDARG_1);
8808 mono_mb_emit_byte (mb, CEE_LDARG_0);
8809 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8810 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8811 mono_mb_emit_byte (mb, CEE_PREFIX1);
8812 mono_mb_emit_byte (mb, CEE_CPBLK);
8815 /* allocate local 0 (pointer) src_ptr */
8816 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8817 /* allocate local 1 (pointer) dst_ptr */
8818 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8819 /* allocate local 2 (boolean) delete_old */
8820 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8821 mono_mb_emit_byte (mb, CEE_LDARG_2);
8822 mono_mb_emit_stloc (mb, 2);
8824 /* initialize src_ptr to point to the start of object data */
8825 mono_mb_emit_byte (mb, CEE_LDARG_0);
8826 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8827 mono_mb_emit_stloc (mb, 0);
8829 /* initialize dst_ptr */
8830 mono_mb_emit_byte (mb, CEE_LDARG_1);
8831 mono_mb_emit_stloc (mb, 1);
8833 emit_struct_conv (mb, klass, FALSE);
8836 mono_mb_emit_byte (mb, CEE_RET);
8838 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8839 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8842 mono_marshal_lock ();
8843 if (!klass->marshal_info->str_to_ptr)
8844 klass->marshal_info->str_to_ptr = res;
8846 res = klass->marshal_info->str_to_ptr;
8847 mono_marshal_unlock ();
8852 * mono_marshal_get_ptr_to_struct:
8855 * generates IL code for PtrToStructure (IntPtr src, object structure)
8856 * The wrapper info for the wrapper is a WrapperInfo structure.
8859 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8861 MonoMethodBuilder *mb;
8862 static MonoMethodSignature *ptostr = NULL;
8866 g_assert (klass != NULL);
8868 mono_marshal_load_type_info (klass);
8870 if (klass->marshal_info->ptr_to_str)
8871 return klass->marshal_info->ptr_to_str;
8874 MonoMethodSignature *sig;
8876 /* Create the signature corresponding to
8877 static void PtrToStructure (IntPtr ptr, object structure);
8878 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8879 sig = mono_create_icall_signature ("void ptr object");
8880 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8882 mono_memory_barrier ();
8886 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8889 if (klass->blittable) {
8890 mono_mb_emit_byte (mb, CEE_LDARG_1);
8891 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8892 mono_mb_emit_byte (mb, CEE_LDARG_0);
8893 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8894 mono_mb_emit_byte (mb, CEE_PREFIX1);
8895 mono_mb_emit_byte (mb, CEE_CPBLK);
8898 /* allocate local 0 (pointer) src_ptr */
8899 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8900 /* allocate local 1 (pointer) dst_ptr */
8901 mono_mb_add_local (mb, &klass->this_arg);
8903 /* initialize src_ptr to point to the start of object data */
8904 mono_mb_emit_byte (mb, CEE_LDARG_0);
8905 mono_mb_emit_stloc (mb, 0);
8907 /* initialize dst_ptr */
8908 mono_mb_emit_byte (mb, CEE_LDARG_1);
8909 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8910 mono_mb_emit_stloc (mb, 1);
8912 emit_struct_conv (mb, klass, TRUE);
8915 mono_mb_emit_byte (mb, CEE_RET);
8917 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8918 res = mono_mb_create (mb, ptostr, 0, info);
8921 mono_marshal_lock ();
8922 if (!klass->marshal_info->ptr_to_str)
8923 klass->marshal_info->ptr_to_str = res;
8925 res = klass->marshal_info->ptr_to_str;
8926 mono_marshal_unlock ();
8931 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8932 * This is used to avoid infinite recursion since it is hard to determine where to
8933 * replace a method with its synchronized wrapper, and where not.
8934 * The runtime should execute METHOD instead of the wrapper.
8935 * The wrapper info for the wrapper is a WrapperInfo structure.
8938 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8940 MonoMethodBuilder *mb;
8942 MonoMethodSignature *sig;
8944 MonoGenericContext *ctx = NULL;
8945 MonoGenericContainer *container = NULL;
8947 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8948 ctx = &((MonoMethodInflated*)method)->context;
8949 method = ((MonoMethodInflated*)method)->declaring;
8950 container = mono_method_get_generic_container (method);
8952 container = method->klass->generic_container;
8953 g_assert (container);
8956 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8958 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8959 mono_mb_emit_byte (mb, CEE_RET);
8961 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8963 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8964 info->d.synchronized_inner.method = method;
8965 res = mono_mb_create (mb, sig, 0, info);
8969 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8970 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8976 * generates IL code for the synchronized wrapper: the generated method
8977 * calls METHOD while locking 'this' or the parent type.
8980 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8982 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8983 MonoMethodSignature *sig;
8984 MonoExceptionClause *clause;
8985 MonoMethodBuilder *mb;
8989 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8990 MonoGenericContext *ctx = NULL;
8991 MonoMethod *orig_method = NULL;
8992 MonoGenericContainer *container = NULL;
8996 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8999 /* FIXME: Support generic methods too */
9000 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9001 orig_method = method;
9002 ctx = &((MonoMethodInflated*)method)->context;
9003 method = ((MonoMethodInflated*)method)->declaring;
9004 container = mono_method_get_generic_container (method);
9006 container = method->klass->generic_container;
9007 g_assert (container);
9014 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9015 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9019 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9020 if ((res = mono_marshal_find_in_cache (cache, method)))
9024 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9027 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9029 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9030 info->d.synchronized.method = method;
9033 mb->skip_visibility = 1;
9035 if (!MONO_TYPE_IS_VOID (sig->ret))
9036 ret_local = mono_mb_add_local (mb, sig->ret);
9039 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9040 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9042 /* This will throw the type load exception when the wrapper is compiled */
9043 mono_mb_emit_byte (mb, CEE_LDNULL);
9044 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9045 mono_mb_emit_byte (mb, CEE_POP);
9047 if (!MONO_TYPE_IS_VOID (sig->ret))
9048 mono_mb_emit_ldloc (mb, ret_local);
9049 mono_mb_emit_byte (mb, CEE_RET);
9052 res = mono_mb_create_and_cache_full (cache, method,
9053 mb, sig, sig->param_count + 16, info, NULL);
9061 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9062 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9064 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9065 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9068 mono_marshal_lock ();
9070 if (!enter_method) {
9071 MonoMethodDesc *desc;
9073 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9074 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9075 g_assert (enter_method);
9076 mono_method_desc_free (desc);
9078 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9079 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9080 g_assert (exit_method);
9081 mono_method_desc_free (desc);
9083 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9084 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9085 g_assert (gettypefromhandle_method);
9086 mono_method_desc_free (desc);
9089 mono_marshal_unlock ();
9092 /* Push this or the type object */
9093 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9094 /* We have special handling for this in the JIT */
9095 int index = mono_mb_add_data (mb, method->klass);
9096 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9097 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9098 mono_mb_emit_i4 (mb, index);
9100 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9103 mono_mb_emit_ldarg (mb, 0);
9104 mono_mb_emit_stloc (mb, this_local);
9106 /* Call Monitor::Enter() */
9107 mono_mb_emit_ldloc (mb, this_local);
9108 mono_mb_emit_ldloc_addr (mb, taken_local);
9109 mono_mb_emit_managed_call (mb, enter_method, NULL);
9111 clause->try_offset = mono_mb_get_label (mb);
9113 /* Call the method */
9115 mono_mb_emit_ldarg (mb, 0);
9116 for (i = 0; i < sig->param_count; i++)
9117 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9121 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9122 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9124 mono_mb_emit_managed_call (mb, method, NULL);
9127 if (!MONO_TYPE_IS_VOID (sig->ret))
9128 mono_mb_emit_stloc (mb, ret_local);
9130 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9132 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9133 clause->handler_offset = mono_mb_get_label (mb);
9135 /* Call Monitor::Exit() if needed */
9136 mono_mb_emit_ldloc (mb, taken_local);
9137 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9138 mono_mb_emit_ldloc (mb, this_local);
9139 mono_mb_emit_managed_call (mb, exit_method, NULL);
9140 mono_mb_patch_branch (mb, pos2);
9141 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9143 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9145 mono_mb_patch_branch (mb, pos);
9146 if (!MONO_TYPE_IS_VOID (sig->ret))
9147 mono_mb_emit_ldloc (mb, ret_local);
9148 mono_mb_emit_byte (mb, CEE_RET);
9150 mono_mb_set_clauses (mb, 1, clause);
9155 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9156 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9158 res = mono_mb_create_and_cache_full (cache, method,
9159 mb, sig, sig->param_count + 16, info, NULL);
9168 * the returned method calls 'method' unboxing the this argument
9171 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9173 MonoMethodSignature *sig = mono_method_signature (method);
9175 MonoMethodBuilder *mb;
9180 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9182 if ((res = mono_marshal_find_in_cache (cache, method)))
9185 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9187 g_assert (sig->hasthis);
9190 mono_mb_emit_ldarg (mb, 0);
9191 mono_mb_emit_icon (mb, sizeof (MonoObject));
9192 mono_mb_emit_byte (mb, CEE_ADD);
9193 for (i = 0; i < sig->param_count; ++i)
9194 mono_mb_emit_ldarg (mb, i + 1);
9195 mono_mb_emit_managed_call (mb, method, NULL);
9196 mono_mb_emit_byte (mb, CEE_RET);
9199 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9200 info->d.unbox.method = method;
9202 res = mono_mb_create_and_cache_full (cache, method,
9203 mb, sig, sig->param_count + 16, info, NULL);
9206 /* mono_method_print_code (res); */
9212 STELEMREF_OBJECT, /*no check at all*/
9213 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9214 STELEMREF_CLASS, /*only the klass->parents check*/
9215 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9216 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9217 STELEMREF_KIND_COUNT
9220 static const char *strelemref_wrapper_name[] = {
9221 "object", "sealed_class", "class", "interface", "complex"
9225 is_monomorphic_array (MonoClass *klass)
9227 MonoClass *element_class;
9228 if (klass->rank != 1)
9231 element_class = klass->element_class;
9232 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9236 get_virtual_stelemref_kind (MonoClass *element_class)
9238 if (element_class == mono_defaults.object_class)
9239 return STELEMREF_OBJECT;
9240 if (is_monomorphic_array (element_class))
9241 return STELEMREF_SEALED_CLASS;
9242 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9243 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9244 #ifdef COMPRESSED_INTERFACE_BITMAP
9245 return STELEMREF_COMPLEX;
9247 return STELEMREF_INTERFACE;
9249 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9250 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9251 return STELEMREF_COMPLEX;
9252 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9253 return STELEMREF_SEALED_CLASS;
9254 return STELEMREF_CLASS;
9260 load_array_element_address (MonoMethodBuilder *mb)
9262 mono_mb_emit_ldarg (mb, 0);
9263 mono_mb_emit_ldarg (mb, 1);
9264 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9268 load_array_class (MonoMethodBuilder *mb, int aklass)
9270 mono_mb_emit_ldarg (mb, 0);
9271 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9272 mono_mb_emit_byte (mb, CEE_LDIND_I);
9273 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9274 mono_mb_emit_byte (mb, CEE_LDIND_I);
9275 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9276 mono_mb_emit_byte (mb, CEE_LDIND_I);
9277 mono_mb_emit_stloc (mb, aklass);
9281 load_value_class (MonoMethodBuilder *mb, int vklass)
9283 mono_mb_emit_ldarg (mb, 2);
9284 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9285 mono_mb_emit_byte (mb, CEE_LDIND_I);
9286 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9287 mono_mb_emit_byte (mb, CEE_LDIND_I);
9288 mono_mb_emit_stloc (mb, vklass);
9294 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9296 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9297 printf ("slow vstore of %s\n", name);
9303 * The wrapper info for the wrapper is a WrapperInfo structure.
9306 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9307 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9308 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9309 * - Add a case for arrays of arrays.
9312 get_virtual_stelemref_wrapper (int kind)
9314 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9315 static MonoMethodSignature *signature;
9316 MonoMethodBuilder *mb;
9319 const char *param_names [16];
9321 int aklass, vklass, vtable, uiid;
9322 int array_slot_addr;
9325 if (cached_methods [kind])
9326 return cached_methods [kind];
9328 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9329 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9333 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9335 /* void this::stelemref (size_t idx, void* value) */
9336 sig->ret = &mono_defaults.void_class->byval_arg;
9337 sig->hasthis = TRUE;
9338 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9339 sig->params [1] = &mono_defaults.object_class->byval_arg;
9344 param_names [0] = "index";
9345 param_names [1] = "value";
9346 mono_mb_set_param_names (mb, param_names);
9348 /*For now simply call plain old stelemref*/
9350 case STELEMREF_OBJECT:
9351 /* ldelema (implicit bound check) */
9352 load_array_element_address (mb);
9354 mono_mb_emit_ldarg (mb, 2);
9355 mono_mb_emit_byte (mb, CEE_STIND_REF);
9356 mono_mb_emit_byte (mb, CEE_RET);
9359 case STELEMREF_COMPLEX:
9361 <ldelema (bound check)>
9364 if (!mono_object_isinst (value, aklass))
9368 *array_slot_addr = value;
9371 throw new ArrayTypeMismatchException ();
9374 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9375 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9379 /*Use this to debug/record stores that are going thru the slow path*/
9380 MonoMethodSignature *csig;
9381 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9382 csig->ret = &mono_defaults.void_class->byval_arg;
9383 csig->params [0] = &mono_defaults.object_class->byval_arg;
9384 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9385 csig->params [2] = &mono_defaults.object_class->byval_arg;
9386 mono_mb_emit_ldarg (mb, 0);
9387 mono_mb_emit_ldarg (mb, 1);
9388 mono_mb_emit_ldarg (mb, 2);
9389 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9393 /* ldelema (implicit bound check) */
9394 load_array_element_address (mb);
9395 mono_mb_emit_stloc (mb, array_slot_addr);
9397 /* if (!value) goto do_store */
9398 mono_mb_emit_ldarg (mb, 2);
9399 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9401 /* aklass = array->vtable->klass->element_class */
9402 load_array_class (mb, aklass);
9404 /*if (mono_object_isinst (value, aklass)) */
9405 mono_mb_emit_ldarg (mb, 2);
9406 mono_mb_emit_ldloc (mb, aklass);
9407 mono_mb_emit_icall (mb, mono_object_isinst);
9408 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9411 mono_mb_patch_branch (mb, b1);
9412 mono_mb_emit_ldloc (mb, array_slot_addr);
9413 mono_mb_emit_ldarg (mb, 2);
9414 mono_mb_emit_byte (mb, CEE_STIND_REF);
9415 mono_mb_emit_byte (mb, CEE_RET);
9418 mono_mb_patch_branch (mb, b2);
9420 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9423 case STELEMREF_SEALED_CLASS:
9425 <ldelema (bound check)>
9429 aklass = array->vtable->klass->element_class;
9430 vklass = value->vtable->klass;
9432 if (vklass != aklass)
9436 *array_slot_addr = value;
9439 throw new ArrayTypeMismatchException ();
9441 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9442 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9443 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9446 /* ldelema (implicit bound check) */
9447 load_array_element_address (mb);
9448 mono_mb_emit_stloc (mb, array_slot_addr);
9450 /* if (!value) goto do_store */
9451 mono_mb_emit_ldarg (mb, 2);
9452 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9454 /* aklass = array->vtable->klass->element_class */
9455 load_array_class (mb, aklass);
9457 /* vklass = value->vtable->klass */
9458 load_value_class (mb, vklass);
9460 /*if (vklass != aklass) goto do_exception; */
9461 mono_mb_emit_ldloc (mb, aklass);
9462 mono_mb_emit_ldloc (mb, vklass);
9463 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9466 mono_mb_patch_branch (mb, b1);
9467 mono_mb_emit_ldloc (mb, array_slot_addr);
9468 mono_mb_emit_ldarg (mb, 2);
9469 mono_mb_emit_byte (mb, CEE_STIND_REF);
9470 mono_mb_emit_byte (mb, CEE_RET);
9473 mono_mb_patch_branch (mb, b2);
9474 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9477 case STELEMREF_CLASS:
9480 <ldelema (bound check)>
9484 aklass = array->vtable->klass->element_class;
9485 vklass = value->vtable->klass;
9487 if (vklass->idepth < aklass->idepth)
9490 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9494 *array_slot_addr = value;
9498 throw new ArrayTypeMismatchException ();
9500 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9501 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9502 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9504 /* ldelema (implicit bound check) */
9505 load_array_element_address (mb);
9506 mono_mb_emit_stloc (mb, array_slot_addr);
9508 /* if (!value) goto do_store */
9509 mono_mb_emit_ldarg (mb, 2);
9510 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9512 /* aklass = array->vtable->klass->element_class */
9513 load_array_class (mb, aklass);
9515 /* vklass = value->vtable->klass */
9516 load_value_class (mb, vklass);
9518 /*if (mono_object_isinst (value, aklass)) */
9519 mono_mb_emit_ldarg (mb, 2);
9520 mono_mb_emit_ldloc (mb, aklass);
9521 mono_mb_emit_icall (mb, mono_object_isinst);
9522 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9524 /* if (vklass->idepth < aklass->idepth) goto failue */
9525 mono_mb_emit_ldloc (mb, vklass);
9526 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9527 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9529 mono_mb_emit_ldloc (mb, aklass);
9530 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9531 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9533 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9535 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9536 mono_mb_emit_ldloc (mb, vklass);
9537 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9538 mono_mb_emit_byte (mb, CEE_LDIND_I);
9540 mono_mb_emit_ldloc (mb, aklass);
9541 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9542 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9543 mono_mb_emit_icon (mb, 1);
9544 mono_mb_emit_byte (mb, CEE_SUB);
9545 mono_mb_emit_icon (mb, sizeof (void*));
9546 mono_mb_emit_byte (mb, CEE_MUL);
9547 mono_mb_emit_byte (mb, CEE_ADD);
9548 mono_mb_emit_byte (mb, CEE_LDIND_I);
9550 mono_mb_emit_ldloc (mb, aklass);
9551 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9554 mono_mb_patch_branch (mb, b1);
9555 mono_mb_emit_ldloc (mb, array_slot_addr);
9556 mono_mb_emit_ldarg (mb, 2);
9557 mono_mb_emit_byte (mb, CEE_STIND_REF);
9558 mono_mb_emit_byte (mb, CEE_RET);
9561 mono_mb_patch_branch (mb, b2);
9562 mono_mb_patch_branch (mb, b3);
9564 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9567 case STELEMREF_INTERFACE:
9574 klass = array->obj.vtable->klass->element_class;
9576 uiid = klass->interface_id;
9577 if (uiid > vt->max_interface_id)
9579 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9582 mono_array_setref (array, index, value);
9585 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9587 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9588 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9589 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9590 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9592 /* ldelema (implicit bound check) */
9593 load_array_element_address (mb);
9594 mono_mb_emit_stloc (mb, array_slot_addr);
9596 /* if (!value) goto do_store */
9597 mono_mb_emit_ldarg (mb, 2);
9598 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9600 /* klass = array->vtable->klass->element_class */
9601 load_array_class (mb, aklass);
9603 /* vt = value->vtable */
9604 mono_mb_emit_ldarg (mb, 2);
9605 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9606 mono_mb_emit_byte (mb, CEE_LDIND_I);
9607 mono_mb_emit_stloc (mb, vtable);
9609 /* uiid = klass->interface_id; */
9610 mono_mb_emit_ldloc (mb, aklass);
9611 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9612 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9613 mono_mb_emit_stloc (mb, uiid);
9615 /*if (uiid > vt->max_interface_id)*/
9616 mono_mb_emit_ldloc (mb, uiid);
9617 mono_mb_emit_ldloc (mb, vtable);
9618 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9619 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9620 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9622 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9624 /*vt->interface_bitmap*/
9625 mono_mb_emit_ldloc (mb, vtable);
9626 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9627 mono_mb_emit_byte (mb, CEE_LDIND_I);
9630 mono_mb_emit_ldloc (mb, uiid);
9631 mono_mb_emit_icon (mb, 3);
9632 mono_mb_emit_byte (mb, CEE_SHR_UN);
9634 /*vt->interface_bitmap [(uiid) >> 3]*/
9635 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9636 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9638 /*(1 << ((uiid)&7)))*/
9639 mono_mb_emit_icon (mb, 1);
9640 mono_mb_emit_ldloc (mb, uiid);
9641 mono_mb_emit_icon (mb, 7);
9642 mono_mb_emit_byte (mb, CEE_AND);
9643 mono_mb_emit_byte (mb, CEE_SHL);
9645 /*bitwise and the whole thing*/
9646 mono_mb_emit_byte (mb, CEE_AND);
9647 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9650 mono_mb_patch_branch (mb, b1);
9651 mono_mb_emit_ldloc (mb, array_slot_addr);
9652 mono_mb_emit_ldarg (mb, 2);
9653 mono_mb_emit_byte (mb, CEE_STIND_REF);
9654 mono_mb_emit_byte (mb, CEE_RET);
9657 mono_mb_patch_branch (mb, b2);
9658 mono_mb_patch_branch (mb, b3);
9659 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9663 mono_mb_emit_ldarg (mb, 0);
9664 mono_mb_emit_ldarg (mb, 1);
9665 mono_mb_emit_ldarg (mb, 2);
9666 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9667 mono_mb_emit_byte (mb, CEE_RET);
9670 #endif /* DISABLE_JIT */
9671 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9672 info->d.virtual_stelemref.kind = kind;
9673 res = mono_mb_create (mb, signature, 4, info);
9674 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9676 mono_marshal_lock ();
9677 if (!cached_methods [kind]) {
9678 cached_methods [kind] = res;
9679 mono_marshal_unlock ();
9681 mono_marshal_unlock ();
9682 mono_free_method (res);
9686 return cached_methods [kind];
9690 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9694 g_assert (array_class->rank == 1);
9695 kind = get_virtual_stelemref_kind (array_class->element_class);
9697 return get_virtual_stelemref_wrapper (kind);
9701 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9706 *nwrappers = STELEMREF_KIND_COUNT;
9707 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9708 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9709 res [i] = get_virtual_stelemref_wrapper (i);
9714 * The wrapper info for the wrapper is a WrapperInfo structure.
9717 mono_marshal_get_stelemref (void)
9719 static MonoMethod* ret = NULL;
9720 MonoMethodSignature *sig;
9721 MonoMethodBuilder *mb;
9724 guint32 b1, b2, b3, b4;
9727 int array_slot_addr;
9732 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9735 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9737 /* void stelemref (void* array, int idx, void* value) */
9738 sig->ret = &mono_defaults.void_class->byval_arg;
9739 sig->params [0] = &mono_defaults.object_class->byval_arg;
9740 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9741 sig->params [2] = &mono_defaults.object_class->byval_arg;
9744 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9745 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9746 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9750 <ldelema (bound check)>
9754 aklass = array->vtable->klass->element_class;
9755 vklass = value->vtable->klass;
9757 if (vklass->idepth < aklass->idepth)
9760 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9764 *array_slot_addr = value;
9768 if (mono_object_isinst (value, aklass))
9771 throw new ArrayTypeMismatchException ();
9774 /* ldelema (implicit bound check) */
9775 mono_mb_emit_ldarg (mb, 0);
9776 mono_mb_emit_ldarg (mb, 1);
9777 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9778 mono_mb_emit_stloc (mb, array_slot_addr);
9780 /* if (!value) goto do_store */
9781 mono_mb_emit_ldarg (mb, 2);
9782 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9784 /* aklass = array->vtable->klass->element_class */
9785 mono_mb_emit_ldarg (mb, 0);
9786 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9787 mono_mb_emit_byte (mb, CEE_LDIND_I);
9788 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9789 mono_mb_emit_byte (mb, CEE_LDIND_I);
9790 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9791 mono_mb_emit_byte (mb, CEE_LDIND_I);
9792 mono_mb_emit_stloc (mb, aklass);
9794 /* vklass = value->vtable->klass */
9795 mono_mb_emit_ldarg (mb, 2);
9796 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9797 mono_mb_emit_byte (mb, CEE_LDIND_I);
9798 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9799 mono_mb_emit_byte (mb, CEE_LDIND_I);
9800 mono_mb_emit_stloc (mb, vklass);
9802 /* if (vklass->idepth < aklass->idepth) goto failue */
9803 mono_mb_emit_ldloc (mb, vklass);
9804 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9805 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9807 mono_mb_emit_ldloc (mb, aklass);
9808 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9809 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9811 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9813 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9814 mono_mb_emit_ldloc (mb, vklass);
9815 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9816 mono_mb_emit_byte (mb, CEE_LDIND_I);
9818 mono_mb_emit_ldloc (mb, aklass);
9819 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9820 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9821 mono_mb_emit_icon (mb, 1);
9822 mono_mb_emit_byte (mb, CEE_SUB);
9823 mono_mb_emit_icon (mb, sizeof (void*));
9824 mono_mb_emit_byte (mb, CEE_MUL);
9825 mono_mb_emit_byte (mb, CEE_ADD);
9826 mono_mb_emit_byte (mb, CEE_LDIND_I);
9828 mono_mb_emit_ldloc (mb, aklass);
9830 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9832 copy_pos = mono_mb_get_label (mb);
9834 mono_mb_patch_branch (mb, b1);
9835 mono_mb_emit_ldloc (mb, array_slot_addr);
9836 mono_mb_emit_ldarg (mb, 2);
9837 mono_mb_emit_byte (mb, CEE_STIND_REF);
9839 mono_mb_emit_byte (mb, CEE_RET);
9842 mono_mb_patch_branch (mb, b2);
9843 mono_mb_patch_branch (mb, b3);
9845 mono_mb_emit_ldarg (mb, 2);
9846 mono_mb_emit_ldloc (mb, aklass);
9847 mono_mb_emit_icall (mb, mono_object_isinst);
9849 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9850 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9851 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9853 mono_mb_emit_byte (mb, CEE_RET);
9855 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9856 ret = mono_mb_create (mb, sig, 4, info);
9863 * mono_marshal_get_gsharedvt_in_wrapper:
9865 * This wrapper handles calls from normal code to gsharedvt code.
9867 * The wrapper info for the wrapper is a WrapperInfo structure.
9870 mono_marshal_get_gsharedvt_in_wrapper (void)
9872 static MonoMethod* ret = NULL;
9873 MonoMethodSignature *sig;
9874 MonoMethodBuilder *mb;
9880 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9882 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9883 sig->ret = &mono_defaults.void_class->byval_arg;
9887 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9889 mono_mb_emit_byte (mb, CEE_RET);
9891 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9892 ret = mono_mb_create (mb, sig, 4, info);
9899 * mono_marshal_get_gsharedvt_out_wrapper:
9901 * This wrapper handles calls from gsharedvt code to normal code.
9903 * The wrapper info for the wrapper is a WrapperInfo structure.
9906 mono_marshal_get_gsharedvt_out_wrapper (void)
9908 static MonoMethod* ret = NULL;
9909 MonoMethodSignature *sig;
9910 MonoMethodBuilder *mb;
9916 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9918 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9919 sig->ret = &mono_defaults.void_class->byval_arg;
9923 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9925 mono_mb_emit_byte (mb, CEE_RET);
9927 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9928 ret = mono_mb_create (mb, sig, 4, info);
9940 /* LOCKING: vars accessed under the marshal lock */
9941 static ArrayElemAddr *elem_addr_cache = NULL;
9942 static int elem_addr_cache_size = 0;
9943 static int elem_addr_cache_next = 0;
9946 * mono_marshal_get_array_address:
9947 * @rank: rank of the array type
9948 * @elem_size: size in bytes of an element of an array.
9950 * Returns a MonoMethod that implements the code to get the address
9951 * of an element in a multi-dimenasional array of @rank dimensions.
9952 * The returned method takes an array as the first argument and then
9953 * @rank indexes for the @rank dimensions.
9954 * If ELEM_SIZE is 0, read the array size from the array object.
9957 mono_marshal_get_array_address (int rank, int elem_size)
9960 MonoMethodBuilder *mb;
9961 MonoMethodSignature *sig;
9964 int i, bounds, ind, realidx;
9965 int branch_pos, *branch_positions;
9969 mono_marshal_lock ();
9970 for (i = 0; i < elem_addr_cache_next; ++i) {
9971 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9972 ret = elem_addr_cache [i].method;
9976 mono_marshal_unlock ();
9980 branch_positions = g_new0 (int, rank);
9982 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9984 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9985 sig->ret = &mono_defaults.int_class->byval_arg;
9986 sig->params [0] = &mono_defaults.object_class->byval_arg;
9987 for (i = 0; i < rank; ++i) {
9988 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9991 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9992 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9996 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9997 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9998 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10000 /* bounds = array->bounds; */
10001 mono_mb_emit_ldarg (mb, 0);
10002 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10003 mono_mb_emit_byte (mb, CEE_LDIND_I);
10004 mono_mb_emit_stloc (mb, bounds);
10006 /* ind is the overall element index, realidx is the partial index in a single dimension */
10007 /* ind = idx0 - bounds [0].lower_bound */
10008 mono_mb_emit_ldarg (mb, 1);
10009 mono_mb_emit_ldloc (mb, bounds);
10010 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10011 mono_mb_emit_byte (mb, CEE_ADD);
10012 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10013 mono_mb_emit_byte (mb, CEE_SUB);
10014 mono_mb_emit_stloc (mb, ind);
10015 /* if (ind >= bounds [0].length) goto exeception; */
10016 mono_mb_emit_ldloc (mb, ind);
10017 mono_mb_emit_ldloc (mb, bounds);
10018 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10019 mono_mb_emit_byte (mb, CEE_ADD);
10020 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10021 /* note that we use unsigned comparison */
10022 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10024 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10025 * We could also decide to ignore the passed elem_size and get it
10026 * from the array object, to reduce the number of methods we generate:
10027 * the additional cost is 3 memory loads and a non-immediate mul.
10029 for (i = 1; i < rank; ++i) {
10030 /* realidx = idxi - bounds [i].lower_bound */
10031 mono_mb_emit_ldarg (mb, 1 + i);
10032 mono_mb_emit_ldloc (mb, bounds);
10033 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10034 mono_mb_emit_byte (mb, CEE_ADD);
10035 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10036 mono_mb_emit_byte (mb, CEE_SUB);
10037 mono_mb_emit_stloc (mb, realidx);
10038 /* if (realidx >= bounds [i].length) goto exeception; */
10039 mono_mb_emit_ldloc (mb, realidx);
10040 mono_mb_emit_ldloc (mb, bounds);
10041 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10042 mono_mb_emit_byte (mb, CEE_ADD);
10043 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10044 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10045 /* ind = ind * bounds [i].length + realidx */
10046 mono_mb_emit_ldloc (mb, ind);
10047 mono_mb_emit_ldloc (mb, bounds);
10048 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10049 mono_mb_emit_byte (mb, CEE_ADD);
10050 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10051 mono_mb_emit_byte (mb, CEE_MUL);
10052 mono_mb_emit_ldloc (mb, realidx);
10053 mono_mb_emit_byte (mb, CEE_ADD);
10054 mono_mb_emit_stloc (mb, ind);
10057 /* return array->vector + ind * element_size */
10058 mono_mb_emit_ldarg (mb, 0);
10059 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10060 mono_mb_emit_ldloc (mb, ind);
10062 mono_mb_emit_icon (mb, elem_size);
10064 /* Load arr->vtable->klass->sizes.element_class */
10065 mono_mb_emit_ldarg (mb, 0);
10066 mono_mb_emit_byte (mb, CEE_CONV_I);
10067 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10068 mono_mb_emit_byte (mb, CEE_ADD);
10069 mono_mb_emit_byte (mb, CEE_LDIND_I);
10070 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10071 mono_mb_emit_byte (mb, CEE_ADD);
10072 mono_mb_emit_byte (mb, CEE_LDIND_I);
10073 /* sizes is an union, so this reads sizes.element_size */
10074 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10075 mono_mb_emit_byte (mb, CEE_ADD);
10076 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10078 mono_mb_emit_byte (mb, CEE_MUL);
10079 mono_mb_emit_byte (mb, CEE_ADD);
10080 mono_mb_emit_byte (mb, CEE_RET);
10082 /* patch the branches to get here and throw */
10083 for (i = 1; i < rank; ++i) {
10084 mono_mb_patch_branch (mb, branch_positions [i]);
10086 mono_mb_patch_branch (mb, branch_pos);
10087 /* throw exception */
10088 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10090 g_free (branch_positions);
10091 #endif /* DISABLE_JIT */
10093 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10094 info->d.element_addr.rank = rank;
10095 info->d.element_addr.elem_size = elem_size;
10096 ret = mono_mb_create (mb, sig, 4, info);
10099 /* cache the result */
10101 mono_marshal_lock ();
10102 for (i = 0; i < elem_addr_cache_next; ++i) {
10103 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10104 /* FIXME: free ret */
10105 ret = elem_addr_cache [i].method;
10111 if (elem_addr_cache_next >= elem_addr_cache_size) {
10112 int new_size = elem_addr_cache_size + 4;
10113 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10114 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10115 g_free (elem_addr_cache);
10116 elem_addr_cache = new_array;
10117 elem_addr_cache_size = new_size;
10119 elem_addr_cache [elem_addr_cache_next].rank = rank;
10120 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10121 elem_addr_cache [elem_addr_cache_next].method = ret;
10122 elem_addr_cache_next ++;
10124 mono_marshal_unlock ();
10129 * mono_marshal_get_array_accessor_wrapper:
10131 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10134 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10136 MonoMethodSignature *sig;
10137 MonoMethodBuilder *mb;
10141 MonoGenericContext *ctx = NULL;
10142 MonoMethod *orig_method = NULL;
10143 MonoGenericContainer *container = NULL;
10147 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10148 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10149 * FIXME: Use generic methods.
10156 g_assert_not_reached ();
10158 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10159 if ((res = mono_marshal_find_in_cache (cache, method)))
10163 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10166 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10168 #ifndef DISABLE_JIT
10169 /* Call the method */
10171 mono_mb_emit_ldarg (mb, 0);
10172 for (i = 0; i < sig->param_count; i++)
10173 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10177 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10178 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10180 mono_mb_emit_managed_call (mb, method, NULL);
10182 mono_mb_emit_byte (mb, CEE_RET);
10185 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10186 info->d.array_accessor.method = method;
10190 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10191 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10193 res = mono_mb_create_and_cache_full (cache, method,
10194 mb, sig, sig->param_count + 16,
10203 mono_marshal_alloc (gulong size, MonoError *error)
10207 mono_error_init (error);
10210 res = CoTaskMemAlloc (size);
10212 res = g_try_malloc ((gulong)size);
10214 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10219 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10221 ves_icall_marshal_alloc (gulong size)
10224 void *ret = mono_marshal_alloc (size, &error);
10225 if (!mono_error_ok (&error)) {
10226 mono_error_set_pending_exception (&error);
10234 mono_marshal_free (gpointer ptr)
10237 CoTaskMemFree (ptr);
10244 mono_marshal_free_array (gpointer *ptr, int size)
10251 for (i = 0; i < size; i++)
10257 mono_marshal_string_to_utf16 (MonoString *s)
10259 return s ? mono_string_chars (s) : NULL;
10262 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10264 mono_marshal_string_to_utf16_copy (MonoString *s)
10270 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10271 if (!mono_error_ok (&error)) {
10272 mono_error_set_pending_exception (&error);
10275 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10276 res [mono_string_length (s)] = 0;
10282 * mono_marshal_set_last_error:
10284 * This function is invoked to set the last error value from a P/Invoke call
10285 * which has SetLastError set.
10288 mono_marshal_set_last_error (void)
10291 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10293 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10298 mono_marshal_set_last_error_windows (int error)
10301 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10306 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10307 gpointer dest, gint32 length)
10312 MONO_CHECK_ARG_NULL (src,);
10313 MONO_CHECK_ARG_NULL (dest,);
10315 if (src->obj.vtable->klass->rank != 1) {
10316 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10319 if (start_index < 0) {
10320 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10324 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10327 if (start_index + length > mono_array_length (src)) {
10328 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10332 element_size = mono_array_element_size (src->obj.vtable->klass);
10334 /* no references should be involved */
10335 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10337 memcpy (dest, source_addr, length * element_size);
10341 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10342 MonoArray *dest, gint32 length)
10347 MONO_CHECK_ARG_NULL (src,);
10348 MONO_CHECK_ARG_NULL (dest,);
10350 if (dest->obj.vtable->klass->rank != 1) {
10351 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10354 if (start_index < 0) {
10355 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10359 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10362 if (start_index + length > mono_array_length (dest)) {
10363 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10366 element_size = mono_array_element_size (dest->obj.vtable->klass);
10368 /* no references should be involved */
10369 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10371 memcpy (dest_addr, src, length * element_size);
10375 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10380 return mono_string_new (mono_domain_get (), ptr);
10384 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10387 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10390 return mono_string_new_len (mono_domain_get (), ptr, len);
10395 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10398 MonoString *res = NULL;
10399 MonoDomain *domain = mono_domain_get ();
10409 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10410 if (!mono_error_ok (&error)) {
10411 mono_error_set_pending_exception (&error);
10418 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10421 MonoString *res = NULL;
10422 MonoDomain *domain = mono_domain_get ();
10424 mono_error_init (&error);
10428 mono_error_set_argument_null (&error, "ptr", "");
10430 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10433 if (!mono_error_ok (&error))
10434 mono_error_set_pending_exception (&error);
10439 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10441 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10445 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10451 MONO_CHECK_ARG_NULL (rtype, 0);
10453 type = rtype->type;
10454 klass = mono_class_from_mono_type (type);
10455 if (!mono_class_init (klass)) {
10456 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10460 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10462 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10463 return sizeof (gpointer);
10464 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10466 MonoException *exc;
10468 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10469 exc = mono_get_exception_argument ("t", msg);
10471 mono_set_pending_exception (exc);
10475 return mono_class_native_size (klass, NULL);
10479 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10482 MonoMethod *method;
10485 MONO_CHECK_ARG_NULL (obj,);
10486 MONO_CHECK_ARG_NULL (dst,);
10488 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10492 pa [2] = &delete_old;
10494 mono_runtime_invoke_checked (method, NULL, pa, &error);
10495 if (!mono_error_ok (&error))
10496 mono_error_set_pending_exception (&error);
10500 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10502 MonoMethod *method;
10505 mono_error_init (error);
10507 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10512 mono_runtime_invoke_checked (method, NULL, pa, error);
10516 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10521 MONO_CHECK_ARG_NULL (src,);
10522 MONO_CHECK_ARG_NULL (dst,);
10524 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10526 if (t->type == MONO_TYPE_VALUETYPE) {
10527 MonoException *exc;
10530 tmp = g_strdup_printf ("Destination is a boxed value type.");
10531 exc = mono_get_exception_argument ("dst", tmp);
10534 mono_set_pending_exception (exc);
10538 ptr_to_structure (src, dst, &error);
10539 if (!mono_error_ok (&error))
10540 mono_error_set_pending_exception (&error);
10544 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10548 MonoDomain *domain = mono_domain_get ();
10553 MONO_CHECK_ARG_NULL (type, NULL);
10555 klass = mono_class_from_mono_type (type->type);
10556 if (!mono_class_init (klass)) {
10557 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10561 res = mono_object_new_checked (domain, klass, &error);
10562 if (!mono_error_ok (&error)) {
10563 mono_error_set_pending_exception (&error);
10567 ptr_to_structure (src, res, &error);
10568 if (!mono_error_ok (&error)) {
10569 mono_error_set_pending_exception (&error);
10577 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10579 MonoMarshalType *info;
10582 int match_index = -1;
10584 MONO_CHECK_ARG_NULL (type, 0);
10585 MONO_CHECK_ARG_NULL (field_name, 0);
10587 fname = mono_string_to_utf8 (field_name);
10588 klass = mono_class_from_mono_type (type->type);
10589 if (!mono_class_init (klass)) {
10590 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10594 while (klass && match_index == -1) {
10595 MonoClassField* field;
10597 gpointer iter = NULL;
10598 while ((field = mono_class_get_fields (klass, &iter))) {
10599 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10601 if (!strcmp (fname, mono_field_get_name (field))) {
10608 if (match_index == -1)
10609 klass = klass->parent;
10614 if(match_index == -1) {
10615 MonoException* exc;
10618 /* Get back original class instance */
10619 klass = mono_class_from_mono_type (type->type);
10621 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10622 exc = mono_get_exception_argument ("fieldName", tmp);
10625 mono_set_pending_exception ((MonoException*)exc);
10629 info = mono_marshal_load_type_info (klass);
10630 return info->fields [match_index].offset;
10634 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10639 tres = mono_string_to_utf8 (string);
10643 len = strlen (tres) + 1;
10644 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10645 memcpy (ret, tres, len);
10650 return mono_string_to_utf8 (string);
10655 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10657 if (string == NULL)
10660 #ifdef TARGET_WIN32
10661 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10662 ((mono_string_length (string) + 1) * 2);
10664 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10666 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10667 res [mono_string_length (string)] = 0;
10673 mono_struct_delete_old (MonoClass *klass, char *ptr)
10675 MonoMarshalType *info;
10678 info = mono_marshal_load_type_info (klass);
10680 for (i = 0; i < info->num_fields; i++) {
10681 MonoMarshalConv conv;
10682 MonoType *ftype = info->fields [i].field->type;
10685 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10688 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10689 klass->unicode, &conv);
10691 cpos = ptr + info->fields [i].offset;
10694 case MONO_MARSHAL_CONV_NONE:
10695 if (MONO_TYPE_ISSTRUCT (ftype)) {
10696 mono_struct_delete_old (ftype->data.klass, cpos);
10700 case MONO_MARSHAL_CONV_STR_LPWSTR:
10701 /* We assume this field points inside a MonoString */
10703 case MONO_MARSHAL_CONV_STR_LPTSTR:
10704 #ifdef TARGET_WIN32
10705 /* We assume this field points inside a MonoString
10709 case MONO_MARSHAL_CONV_STR_LPSTR:
10710 case MONO_MARSHAL_CONV_STR_BSTR:
10711 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10712 case MONO_MARSHAL_CONV_STR_TBSTR:
10713 mono_marshal_free (*(gpointer *)cpos);
10723 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10727 MONO_CHECK_ARG_NULL (src,);
10728 MONO_CHECK_ARG_NULL (type,);
10730 klass = mono_class_from_mono_type (type->type);
10731 if (!mono_class_init (klass)) {
10732 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10736 mono_struct_delete_old (klass, (char *)src);
10740 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10743 size_t s = (size_t)size;
10746 /* This returns a valid pointer for size 0 on MS.NET */
10750 res = GlobalAlloc (GMEM_FIXED, s);
10752 res = g_try_malloc (s);
10755 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10763 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10766 size_t s = (size_t)size;
10769 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10774 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10776 res = g_try_realloc (ptr, s);
10779 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10787 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10797 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10802 res = CoTaskMemAlloc (size);
10804 if ((gulong)size == 0)
10805 /* This returns a valid pointer for size 0 on MS.NET */
10808 res = g_try_malloc ((gulong)size);
10811 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10818 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10821 CoTaskMemFree (ptr);
10828 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10833 res = CoTaskMemRealloc (ptr, size);
10835 res = g_try_realloc (ptr, (gulong)size);
10838 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10845 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10847 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10851 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10853 MonoClass *klass = mono_type_get_class (type->type);
10854 if (!mono_class_init (klass)) {
10855 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10859 return mono_ftnptr_to_delegate (klass, ftn);
10863 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10865 return mono_delegate_to_ftnptr (delegate);
10869 * mono_marshal_is_loading_type_info:
10871 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10875 mono_marshal_is_loading_type_info (MonoClass *klass)
10877 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10879 return g_slist_find (loads_list, klass) != NULL;
10883 * mono_marshal_load_type_info:
10885 * Initialize klass->marshal_info using information from metadata. This function can
10886 * recursively call itself, and the caller is responsible to avoid that by calling
10887 * mono_marshal_is_loading_type_info () beforehand.
10889 * LOCKING: Acquires the loader lock.
10892 mono_marshal_load_type_info (MonoClass* klass)
10895 guint32 native_size = 0, min_align = 1, packing;
10896 MonoMarshalType *info;
10897 MonoClassField* field;
10900 GSList *loads_list;
10902 g_assert (klass != NULL);
10904 if (klass->marshal_info)
10905 return klass->marshal_info;
10907 if (!klass->inited)
10908 mono_class_init (klass);
10910 if (klass->marshal_info)
10911 return klass->marshal_info;
10914 * This function can recursively call itself, so we keep the list of classes which are
10915 * under initialization in a TLS list.
10917 g_assert (!mono_marshal_is_loading_type_info (klass));
10918 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10919 loads_list = g_slist_prepend (loads_list, klass);
10920 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10923 while ((field = mono_class_get_fields (klass, &iter))) {
10924 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10926 if (mono_field_is_deleted (field))
10931 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10933 /* The mempool is protected by the loader lock */
10934 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10935 info->num_fields = count;
10937 /* Try to find a size for this type in metadata */
10938 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10940 if (klass->parent) {
10941 int parent_size = mono_class_native_size (klass->parent, NULL);
10943 /* Add parent size to real size */
10944 native_size += parent_size;
10945 info->native_size = parent_size;
10948 packing = klass->packing_size ? klass->packing_size : 8;
10951 while ((field = mono_class_get_fields (klass, &iter))) {
10955 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10958 if (mono_field_is_deleted (field))
10960 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10961 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10962 NULL, NULL, &info->fields [j].mspec);
10964 info->fields [j].field = field;
10966 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10967 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10968 /* This field is a hack inserted by MCS to empty structures */
10973 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10974 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10975 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10976 &align, TRUE, klass->unicode);
10977 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10978 min_align = MAX (align, min_align);
10979 info->fields [j].offset = info->native_size;
10980 info->fields [j].offset += align - 1;
10981 info->fields [j].offset &= ~(align - 1);
10982 info->native_size = info->fields [j].offset + size;
10984 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10985 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10986 &align, TRUE, klass->unicode);
10987 min_align = MAX (align, min_align);
10988 info->fields [j].offset = field->offset - sizeof (MonoObject);
10989 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10995 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10996 info->native_size = MAX (native_size, info->native_size);
10998 * If the provided Size is equal or larger than the calculated size, and there
10999 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11001 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11002 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11005 min_align = MIN (min_align, packing);
11009 if (info->native_size & (min_align - 1)) {
11010 info->native_size += min_align - 1;
11011 info->native_size &= ~(min_align - 1);
11014 info->min_align = min_align;
11016 /* Update the class's blittable info, if the layouts don't match */
11017 if (info->native_size != mono_class_value_size (klass, NULL))
11018 klass->blittable = FALSE;
11020 /* If this is an array type, ensure that we have element info */
11021 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11022 mono_marshal_load_type_info (klass->element_class);
11025 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11026 loads_list = g_slist_remove (loads_list, klass);
11027 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11029 mono_marshal_lock ();
11030 if (!klass->marshal_info) {
11031 /*We do double-checking locking on marshal_info */
11032 mono_memory_barrier ();
11033 klass->marshal_info = info;
11035 mono_marshal_unlock ();
11037 return klass->marshal_info;
11041 * mono_class_native_size:
11044 * Returns: the native size of an object instance (when marshaled
11045 * to unmanaged code)
11048 mono_class_native_size (MonoClass *klass, guint32 *align)
11050 if (!klass->marshal_info) {
11051 if (mono_marshal_is_loading_type_info (klass)) {
11056 mono_marshal_load_type_info (klass);
11061 *align = klass->marshal_info->min_align;
11063 return klass->marshal_info->native_size;
11067 * mono_type_native_stack_size:
11068 * @t: the type to return the size it uses on the stack
11070 * Returns: the number of bytes required to hold an instance of this
11071 * type on the native stack
11074 mono_type_native_stack_size (MonoType *t, guint32 *align)
11078 g_assert (t != NULL);
11084 *align = sizeof (gpointer);
11085 return sizeof (gpointer);
11089 case MONO_TYPE_BOOLEAN:
11090 case MONO_TYPE_CHAR:
11101 case MONO_TYPE_STRING:
11102 case MONO_TYPE_OBJECT:
11103 case MONO_TYPE_CLASS:
11104 case MONO_TYPE_SZARRAY:
11105 case MONO_TYPE_PTR:
11106 case MONO_TYPE_FNPTR:
11107 case MONO_TYPE_ARRAY:
11108 *align = sizeof (gpointer);
11109 return sizeof (gpointer);
11114 *align = MONO_ABI_ALIGNOF (double);
11118 *align = MONO_ABI_ALIGNOF (gint64);
11120 case MONO_TYPE_GENERICINST:
11121 if (!mono_type_generic_inst_is_valuetype (t)) {
11122 *align = sizeof (gpointer);
11123 return sizeof (gpointer);
11126 case MONO_TYPE_TYPEDBYREF:
11127 case MONO_TYPE_VALUETYPE: {
11129 MonoClass *klass = mono_class_from_mono_type (t);
11131 if (klass->enumtype)
11132 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11134 size = mono_class_native_size (klass, align);
11135 *align = *align + 3;
11145 g_error ("type 0x%02x unknown", t->type);
11151 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11152 gboolean as_field, gboolean unicode)
11154 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11157 switch (native_type) {
11158 case MONO_NATIVE_BOOLEAN:
11161 case MONO_NATIVE_I1:
11162 case MONO_NATIVE_U1:
11165 case MONO_NATIVE_I2:
11166 case MONO_NATIVE_U2:
11167 case MONO_NATIVE_VARIANTBOOL:
11170 case MONO_NATIVE_I4:
11171 case MONO_NATIVE_U4:
11172 case MONO_NATIVE_ERROR:
11175 case MONO_NATIVE_I8:
11176 case MONO_NATIVE_U8:
11177 *align = MONO_ABI_ALIGNOF (gint64);
11179 case MONO_NATIVE_R4:
11182 case MONO_NATIVE_R8:
11183 *align = MONO_ABI_ALIGNOF (double);
11185 case MONO_NATIVE_INT:
11186 case MONO_NATIVE_UINT:
11187 case MONO_NATIVE_LPSTR:
11188 case MONO_NATIVE_LPWSTR:
11189 case MONO_NATIVE_LPTSTR:
11190 case MONO_NATIVE_BSTR:
11191 case MONO_NATIVE_ANSIBSTR:
11192 case MONO_NATIVE_TBSTR:
11193 case MONO_NATIVE_LPARRAY:
11194 case MONO_NATIVE_SAFEARRAY:
11195 case MONO_NATIVE_IUNKNOWN:
11196 case MONO_NATIVE_IDISPATCH:
11197 case MONO_NATIVE_INTERFACE:
11198 case MONO_NATIVE_ASANY:
11199 case MONO_NATIVE_FUNC:
11200 case MONO_NATIVE_LPSTRUCT:
11201 *align = MONO_ABI_ALIGNOF (gpointer);
11202 return sizeof (gpointer);
11203 case MONO_NATIVE_STRUCT:
11204 klass = mono_class_from_mono_type (type);
11205 if (klass == mono_defaults.object_class &&
11206 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11210 return mono_class_native_size (klass, align);
11211 case MONO_NATIVE_BYVALTSTR: {
11212 int esize = unicode ? 2: 1;
11215 return mspec->data.array_data.num_elem * esize;
11217 case MONO_NATIVE_BYVALARRAY: {
11218 // FIXME: Have to consider ArraySubType
11220 klass = mono_class_from_mono_type (type);
11221 if (klass->element_class == mono_defaults.char_class) {
11222 esize = unicode ? 2 : 1;
11225 esize = mono_class_native_size (klass->element_class, align);
11228 return mspec->data.array_data.num_elem * esize;
11230 case MONO_NATIVE_CUSTOM:
11231 *align = sizeof (gpointer);
11232 return sizeof (gpointer);
11234 case MONO_NATIVE_CURRENCY:
11235 case MONO_NATIVE_VBBYREFSTR:
11237 g_error ("native type %02x not implemented", native_type);
11240 g_assert_not_reached ();
11244 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11246 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11255 t = &o->vtable->klass->byval_arg;
11259 case MONO_TYPE_PTR:
11262 case MONO_TYPE_BOOLEAN:
11265 case MONO_TYPE_CHAR:
11270 return mono_object_unbox (o);
11272 case MONO_TYPE_STRING:
11273 switch (string_encoding) {
11274 case MONO_NATIVE_LPWSTR:
11275 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11277 case MONO_NATIVE_LPSTR:
11278 return mono_string_to_lpstr ((MonoString*)o);
11281 g_warning ("marshaling conversion %d not implemented", string_encoding);
11282 g_assert_not_reached ();
11285 case MONO_TYPE_CLASS:
11286 case MONO_TYPE_VALUETYPE: {
11287 MonoMethod *method;
11290 MonoBoolean delete_old = FALSE;
11292 klass = t->data.klass;
11294 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11297 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11298 klass->blittable || klass->enumtype))
11299 return mono_object_unbox (o);
11301 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11302 if (!mono_error_ok (&error)) {
11303 mono_error_set_pending_exception (&error);
11307 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11308 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11312 pa [2] = &delete_old;
11314 mono_runtime_invoke_checked (method, NULL, pa, &error);
11315 if (!mono_error_ok (&error)) {
11316 mono_error_set_pending_exception (&error);
11326 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11330 /* This is a JIT icall, it sets the pending exception */
11332 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11341 t = &o->vtable->klass->byval_arg;
11343 case MONO_TYPE_STRING:
11344 switch (string_encoding) {
11345 case MONO_NATIVE_LPWSTR:
11346 case MONO_NATIVE_LPSTR:
11347 mono_marshal_free (ptr);
11350 g_warning ("marshaling conversion %d not implemented", string_encoding);
11351 g_assert_not_reached ();
11354 case MONO_TYPE_CLASS:
11355 case MONO_TYPE_VALUETYPE: {
11356 klass = t->data.klass;
11358 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11359 klass->blittable || klass->enumtype))
11362 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11363 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11369 mono_runtime_invoke_checked (method, NULL, pa, &error);
11370 if (!mono_error_ok (&error)) {
11371 mono_error_set_pending_exception (&error);
11376 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11377 mono_struct_delete_old (klass, (char *)ptr);
11380 mono_marshal_free (ptr);
11389 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11391 MonoMethodSignature *sig, *csig;
11392 MonoMethodBuilder *mb;
11397 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11398 mb->method->slot = -1;
11400 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11401 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11403 sig = mono_method_signature (method);
11404 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11405 csig->generic_param_count = 0;
11407 #ifndef DISABLE_JIT
11408 mono_mb_emit_ldarg (mb, 0);
11409 for (i = 0; i < csig->param_count; i++)
11410 mono_mb_emit_ldarg (mb, i + 1);
11411 mono_mb_emit_managed_call (mb, method, NULL);
11412 mono_mb_emit_byte (mb, CEE_RET);
11414 /* We can corlib internal methods */
11415 mb->skip_visibility = TRUE;
11417 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11418 info->d.generic_array_helper.method = method;
11419 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11427 * The mono_win32_compat_* functions are implementations of inline
11428 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11429 * although not exported by kernel32.
11431 * We map the appropiate kernel32 entries to these functions using
11432 * dllmaps declared in the global etc/mono/config.
11436 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11438 if (!dest || !source)
11441 memcpy (dest, source, length);
11445 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11447 memset (dest, fill, length);
11451 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11453 if (!dest || !source)
11456 memmove (dest, source, length);
11460 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11462 memset (dest, 0, length);
11466 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11471 for (i = 0; i < len; ++i)
11475 g_assert (i < len);
11478 while (byte && !(byte & 1))
11480 g_assert (byte == 1);
11483 *bitmask = buf [i];
11487 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11489 MonoMethodBuilder *mb;
11490 MonoMethodSignature *sig, *csig;
11491 MonoExceptionClause *clause;
11496 int i, param_count, sig_size, pos_leave;
11497 int coop_gc_var, coop_gc_dummy_local;
11501 klass = method->klass;
11502 image = method->klass->image;
11504 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11506 if ((res = mono_marshal_find_in_cache (cache, method)))
11509 sig = mono_method_signature (method);
11510 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11512 /* add "this" and exception param */
11513 param_count = sig->param_count + sig->hasthis + 1;
11515 /* dup & extend signature */
11516 csig = mono_metadata_signature_alloc (image, param_count);
11517 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11518 memcpy (csig, sig, sig_size);
11519 csig->param_count = param_count;
11522 csig->call_convention = MONO_CALL_DEFAULT;
11524 if (sig->hasthis) {
11526 csig->params [0] = &klass->byval_arg;
11527 /* move params up by one */
11528 for (i = 0; i < sig->param_count; i++)
11529 csig->params [i + 1] = sig->params [i];
11532 /* setup exception param as byref+[out] */
11533 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11534 &mono_defaults.exception_class->byval_arg);
11535 csig->params [param_count - 1]->byref = 1;
11536 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11538 /* convert struct return to object */
11539 if (MONO_TYPE_ISSTRUCT (sig->ret))
11540 csig->ret = &mono_defaults.object_class->byval_arg;
11542 #ifndef DISABLE_JIT
11543 /* local 0 (temp for exception object) */
11544 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11546 /* local 1 (temp for result) */
11547 if (!MONO_TYPE_IS_VOID (sig->ret))
11548 mono_mb_add_local (mb, sig->ret);
11550 if (mono_threads_is_coop_enabled ()) {
11551 /* local 4, the local to be used when calling the reset_blocking funcs */
11552 /* tons of code hardcode 3 to be the return var */
11553 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11554 /* local 5, the local used to get a stack address for suspend funcs */
11555 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11558 /* clear exception arg */
11559 mono_mb_emit_ldarg (mb, param_count - 1);
11560 mono_mb_emit_byte (mb, CEE_LDNULL);
11561 mono_mb_emit_byte (mb, CEE_STIND_REF);
11563 if (mono_threads_is_coop_enabled ()) {
11564 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11565 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11566 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11567 mono_mb_emit_stloc (mb, coop_gc_var);
11571 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11572 clause->try_offset = mono_mb_get_label (mb);
11574 /* push method's args */
11575 for (i = 0; i < param_count - 1; i++) {
11579 mono_mb_emit_ldarg (mb, i);
11581 /* get the byval type of the param */
11582 klass = mono_class_from_mono_type (csig->params [i]);
11583 type = &klass->byval_arg;
11585 /* unbox struct args */
11586 if (MONO_TYPE_ISSTRUCT (type)) {
11587 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11589 /* byref args & and the "this" arg must remain a ptr.
11590 Otherwise make a copy of the value type */
11591 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11592 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11594 csig->params [i] = &mono_defaults.object_class->byval_arg;
11599 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11600 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11602 mono_mb_emit_op (mb, CEE_CALL, method);
11604 /* save result at local 1 */
11605 if (!MONO_TYPE_IS_VOID (sig->ret))
11606 mono_mb_emit_stloc (mb, 1);
11608 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11611 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11612 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11613 clause->data.catch_class = mono_defaults.object_class;
11615 clause->handler_offset = mono_mb_get_label (mb);
11617 /* store exception at local 0 */
11618 mono_mb_emit_stloc (mb, 0);
11619 mono_mb_emit_ldarg (mb, param_count - 1);
11620 mono_mb_emit_ldloc (mb, 0);
11621 mono_mb_emit_byte (mb, CEE_STIND_REF);
11622 mono_mb_emit_branch (mb, CEE_LEAVE);
11624 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11626 mono_mb_set_clauses (mb, 1, clause);
11628 mono_mb_patch_branch (mb, pos_leave);
11631 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11632 mono_mb_emit_ldloc (mb, 1);
11634 /* box the return value */
11635 if (MONO_TYPE_ISSTRUCT (sig->ret))
11636 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11639 if (mono_threads_is_coop_enabled ()) {
11640 /* XXX merge reset_blocking_end with detach */
11641 mono_mb_emit_ldloc (mb, coop_gc_var);
11642 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11643 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11646 mono_mb_emit_byte (mb, CEE_RET);
11649 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11656 * mono_marshal_free_dynamic_wrappers:
11658 * Free wrappers of the dynamic method METHOD.
11661 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11663 MonoImage *image = method->klass->image;
11665 g_assert (method_is_dynamic (method));
11667 /* This could be called during shutdown */
11668 if (marshal_mutex_initialized)
11669 mono_marshal_lock ();
11671 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11672 * they could be shared with other methods ?
11674 if (image->wrapper_caches.runtime_invoke_direct_cache)
11675 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11676 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11677 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11678 // FIXME: Need to clear the caches in other images as well
11679 if (image->delegate_bound_static_invoke_cache)
11680 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11682 if (marshal_mutex_initialized)
11683 mono_marshal_unlock ();