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)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-error-internals.h>
53 /* #define DEBUG_RUNTIME_CODE */
55 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
59 #include "mono/cil/opcode.def"
65 * This mutex protects the various marshalling related caches in MonoImage
66 * and a few other data structures static to this file.
68 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
69 * runtime locking latice. Which means it can take simple locks suck as the image lock.
71 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
72 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
73 static mono_mutex_t marshal_mutex;
74 static gboolean marshal_mutex_initialized;
76 static MonoNativeTlsKey last_error_tls_id;
78 static MonoNativeTlsKey load_type_info_tls_id;
80 static gboolean use_aot_wrappers;
82 static void ftnptr_eh_callback_default (guint32 gchandle);
84 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
87 delegate_hash_table_add (MonoDelegate *d);
90 delegate_hash_table_remove (MonoDelegate *d);
93 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
96 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
99 mono_struct_delete_old (MonoClass *klass, char *ptr);
102 mono_marshal_string_to_utf16 (MonoString *s);
105 mono_marshal_string_to_utf16_copy (MonoString *s);
108 mono_string_to_lpstr (MonoString *string_obj);
110 static MonoStringBuilder *
111 mono_string_utf8_to_builder2 (char *text);
113 static MonoStringBuilder *
114 mono_string_utf16_to_builder2 (gunichar2 *text);
117 mono_string_new_len_wrapper (const char *text, guint length);
120 mono_string_from_byvalstr (const char *data, int len);
123 mono_string_from_byvalwstr (gunichar2 *data, int len);
126 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
129 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
132 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
135 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
137 static MonoAsyncResult *
138 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
141 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_marshal_set_last_error_windows (int error);
147 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
149 static void init_safe_handle (void);
152 ves_icall_marshal_alloc (gulong size);
155 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
158 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
161 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
164 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
167 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
170 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
173 mono_delegate_to_ftnptr (MonoDelegate *delegate);
176 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
179 mono_array_to_savearray (MonoArray *array);
182 mono_array_to_lparray (MonoArray *array);
185 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
188 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
191 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
194 mono_array_to_savearray (MonoArray *array);
197 mono_array_to_lparray (MonoArray *array);
200 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
203 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
205 /* Lazy class loading functions */
206 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
207 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
208 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
211 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
212 static MonoMethod *sh_dangerous_add_ref;
213 static MonoMethod *sh_dangerous_release;
218 sh_dangerous_add_ref = mono_class_get_method_from_name (
219 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
220 sh_dangerous_release = mono_class_get_method_from_name (
221 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
225 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
227 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
229 mono_register_jit_icall (func, name, sig, no_wrapper);
233 mono_signature_no_pinvoke (MonoMethod *method)
235 MonoMethodSignature *sig = mono_method_signature (method);
237 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
238 sig->pinvoke = FALSE;
245 mono_marshal_init_tls (void)
247 mono_native_tls_alloc (&last_error_tls_id, NULL);
248 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
252 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
255 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
256 mono_error_set_pending_exception (&error);
261 ves_icall_mono_string_from_utf16 (gunichar2 *data)
264 MonoString *result = mono_string_from_utf16_checked (data, &error);
265 mono_error_set_pending_exception (&error);
270 mono_marshal_init (void)
272 static gboolean module_initialized = FALSE;
274 if (!module_initialized) {
275 module_initialized = TRUE;
276 mono_os_mutex_init_recursive (&marshal_mutex);
277 marshal_mutex_initialized = TRUE;
279 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
280 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
281 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
282 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
283 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
284 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
285 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
286 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
287 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
288 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
289 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
290 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
291 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
292 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
293 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
294 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
295 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
296 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
297 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
298 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
299 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
300 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
301 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
302 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
303 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
304 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
305 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
306 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
307 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
308 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
309 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
310 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
311 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
312 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
313 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
314 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
315 register_icall (g_free, "g_free", "void ptr", FALSE);
316 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
317 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
318 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
319 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
320 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
321 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
322 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
323 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
324 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
325 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
326 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
327 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
328 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
329 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
330 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
332 mono_cominterop_init ();
333 mono_remoting_init ();
338 mono_marshal_cleanup (void)
340 mono_cominterop_cleanup ();
342 mono_native_tls_free (load_type_info_tls_id);
343 mono_native_tls_free (last_error_tls_id);
344 mono_os_mutex_destroy (&marshal_mutex);
345 marshal_mutex_initialized = FALSE;
349 mono_marshal_lock_internal (void)
351 mono_marshal_lock ();
355 mono_marshal_unlock_internal (void)
357 mono_marshal_unlock ();
360 /* This is a JIT icall, it sets the pending exception and return NULL on error */
362 mono_delegate_to_ftnptr (MonoDelegate *delegate)
365 MonoMethod *method, *wrapper;
367 uint32_t target_handle = 0;
372 if (delegate->delegate_trampoline)
373 return delegate->delegate_trampoline;
375 klass = ((MonoObject *)delegate)->vtable->klass;
376 g_assert (klass->delegate);
378 method = delegate->method;
379 if (delegate->method_is_virtual)
380 method = mono_object_get_virtual_method (delegate->target, method);
382 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
383 const char *exc_class, *exc_arg;
386 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
388 g_assert (exc_class);
389 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
395 if (delegate->target) {
396 /* Produce a location which can be embedded in JITted code */
397 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
400 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
402 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
406 // Add the delegate to the delegate hash table
407 delegate_hash_table_add (delegate);
409 /* when the object is collected, collect the dynamic method, too */
410 mono_object_register_finalizer ((MonoObject*)delegate);
412 return delegate->delegate_trampoline;
415 mono_gchandle_free (target_handle);
416 mono_error_set_pending_exception (&error);
421 * this hash table maps from a delegate trampoline object to a weak reference
422 * of the delegate. As an optimizations with a non-moving GC we store the
423 * object pointer itself, otherwise we use a GC handle.
425 static GHashTable *delegate_hash_table;
428 delegate_hash_table_new (void) {
429 return g_hash_table_new (NULL, NULL);
433 delegate_hash_table_remove (MonoDelegate *d)
435 guint32 gchandle = 0;
437 mono_marshal_lock ();
438 if (delegate_hash_table == NULL)
439 delegate_hash_table = delegate_hash_table_new ();
440 if (mono_gc_is_moving ())
441 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
442 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
443 mono_marshal_unlock ();
444 if (gchandle && mono_gc_is_moving ())
445 mono_gchandle_free (gchandle);
449 delegate_hash_table_add (MonoDelegate *d)
452 guint32 old_gchandle;
454 mono_marshal_lock ();
455 if (delegate_hash_table == NULL)
456 delegate_hash_table = delegate_hash_table_new ();
457 if (mono_gc_is_moving ()) {
458 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
459 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
460 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
462 mono_gchandle_free (old_gchandle);
464 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
466 mono_marshal_unlock ();
470 * mono_marshal_use_aot_wrappers:
472 * Instructs this module to use AOT compatible wrappers.
475 mono_marshal_use_aot_wrappers (gboolean use)
477 use_aot_wrappers = use;
481 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
484 MonoCustomAttrInfo *cinfo;
485 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
487 /* The attribute is only available in Net 2.0 */
488 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
490 * The pinvoke attributes are stored in a real custom attribute so we have to
493 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
494 if (!mono_error_ok (&error)) {
495 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
496 mono_error_cleanup (&error);
498 if (cinfo && !mono_runtime_get_no_exec ()) {
499 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
501 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
503 if (!mono_error_ok (&error)) {
504 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
505 mono_error_cleanup (&error);
509 mono_custom_attrs_free (cinfo);
514 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
516 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
525 mono_marshal_lock ();
526 if (delegate_hash_table == NULL)
527 delegate_hash_table = delegate_hash_table_new ();
529 if (mono_gc_is_moving ()) {
530 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
531 mono_marshal_unlock ();
533 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
537 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
538 mono_marshal_unlock ();
541 /* This is a native function, so construct a delegate for it */
542 MonoMethodSignature *sig;
544 MonoMarshalSpec **mspecs;
545 MonoMethod *invoke = mono_get_delegate_invoke (klass);
546 MonoMethodPInvoke piinfo;
547 MonoObject *this_obj;
550 if (use_aot_wrappers) {
551 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
552 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
553 if (!is_ok (&error)) {
554 mono_error_set_pending_exception (&error);
558 memset (&piinfo, 0, sizeof (piinfo));
559 parse_unmanaged_function_pointer_attr (klass, &piinfo);
561 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
562 mono_method_get_marshal_info (invoke, mspecs);
563 /* Freed below so don't alloc from mempool */
564 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
567 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
570 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
572 mono_metadata_free_marshal_spec (mspecs [i]);
577 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
578 if (!mono_error_ok (&error)) {
579 mono_error_set_pending_exception (&error);
582 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
583 if (mono_error_set_pending_exception (&error))
585 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
586 if (mono_error_set_pending_exception (&error))
590 if (d->object.vtable->domain != mono_domain_get ()) {
591 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
599 mono_delegate_free_ftnptr (MonoDelegate *delegate)
604 delegate_hash_table_remove (delegate);
606 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
608 if (!delegate->target) {
609 /* The wrapper method is shared between delegates -> no need to free it */
618 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
621 method = mono_jit_info_get_method (ji);
622 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
624 /*the target gchandle is the first entry after size and the wrapper itself.*/
625 gchandle = GPOINTER_TO_UINT (method_data [2]);
628 mono_gchandle_free (gchandle);
630 mono_runtime_free_method (mono_object_domain (delegate), method);
634 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
636 mono_string_from_byvalstr (const char *data, int max_len)
639 MonoDomain *domain = mono_domain_get ();
645 while (len < max_len - 1 && data [len])
648 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
649 mono_error_set_pending_exception (&error);
653 /* This is a JIT icall, it sets the pending exception and return NULL on error */
655 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
658 MonoString *res = NULL;
659 MonoDomain *domain = mono_domain_get ();
665 while (data [len]) len++;
667 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
668 if (!mono_error_ok (&error)) {
669 mono_error_set_pending_exception (&error);
676 mono_array_to_savearray (MonoArray *array)
681 g_assert_not_reached ();
686 mono_array_to_lparray (MonoArray *array)
689 gpointer *nativeArray = NULL;
690 int nativeArraySize = 0;
700 klass = array->obj.vtable->klass;
702 switch (klass->element_class->byval_arg.type) {
704 g_assert_not_reached ();
706 case MONO_TYPE_CLASS:
707 nativeArraySize = array->max_length;
708 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
709 for(i = 0; i < nativeArraySize; ++i)
710 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
713 case MONO_TYPE_BOOLEAN:
726 case MONO_TYPE_VALUETYPE:
730 case MONO_TYPE_GENERICINST:
731 case MONO_TYPE_OBJECT:
732 case MONO_TYPE_ARRAY:
733 case MONO_TYPE_SZARRAY:
734 case MONO_TYPE_STRING:
736 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
737 g_assert_not_reached ();
740 return array->vector;
744 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
755 klass = array->obj.vtable->klass;
757 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
758 for(i = 0; i < array->max_length; ++i)
759 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
766 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
768 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
770 if (elclass == mono_defaults.byte_class) {
771 GError *error = NULL;
775 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
778 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
782 g_error_free (error);
785 g_assert_not_reached ();
789 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
791 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
794 /* This is a JIT icall, it sets the pending exception and returns on error */
796 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
798 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
800 if (elclass == mono_defaults.byte_class) {
802 GError *error = NULL;
804 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
806 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
807 g_error_free (error);
811 memcpy (native_arr, as, MIN (strlen (as), elnum));
814 g_assert_not_reached ();
819 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
821 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
824 static MonoStringBuilder *
825 mono_string_builder_new (int starting_string_length)
827 static MonoClass *string_builder_class;
828 static MonoMethod *sb_ctor;
829 static void *args [1];
832 int initial_len = starting_string_length;
838 MonoMethodDesc *desc;
841 string_builder_class = mono_class_get_string_builder_class ();
842 g_assert (string_builder_class);
843 desc = mono_method_desc_new (":.ctor(int)", FALSE);
844 m = mono_method_desc_search_in_class (desc, string_builder_class);
846 mono_method_desc_free (desc);
847 mono_memory_barrier ();
851 // We make a new array in the _to_builder function, so this
852 // array will always be garbage collected.
853 args [0] = &initial_len;
855 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
856 mono_error_assert_ok (&error);
859 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
860 g_assert (exc == NULL);
861 mono_error_assert_ok (&error);
863 g_assert (sb->chunkChars->max_length >= initial_len);
869 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
871 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
872 gunichar2 *charSrc = (gunichar2 *)text;
873 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
875 sb->chunkLength = string_len;
881 mono_string_utf16_to_builder2 (gunichar2 *text)
887 for (len = 0; text [len] != 0; ++len);
889 MonoStringBuilder *sb = mono_string_builder_new (len);
890 mono_string_utf16_to_builder (sb, text);
896 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
901 int len = strlen (text);
902 if (len > mono_string_builder_capacity (sb))
903 len = mono_string_builder_capacity (sb);
905 GError *error = NULL;
907 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
910 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
911 mono_string_utf16_to_builder_copy (sb, ut, copied);
913 g_error_free (error);
919 mono_string_utf8_to_builder2 (char *text)
924 int len = strlen (text);
925 MonoStringBuilder *sb = mono_string_builder_new (len);
926 mono_string_utf8_to_builder (sb, text);
933 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
939 for (len = 0; text [len] != 0; ++len);
941 if (len > mono_string_builder_capacity (sb))
942 len = mono_string_builder_capacity (sb);
944 mono_string_utf16_to_builder_copy (sb, text, len);
948 * mono_string_builder_to_utf8:
949 * @sb: the string builder
951 * Converts to utf8 the contents of the MonoStringBuilder.
953 * Returns: a utf8 string with the contents of the StringBuilder.
955 * The return value must be released with g_free.
957 * This is a JIT icall, it sets the pending exception and returns NULL on error.
960 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
963 GError *gerror = NULL;
968 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
970 guint str_len = mono_string_builder_string_length (sb);
972 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
975 g_error_free (gerror);
977 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
980 guint len = mono_string_builder_capacity (sb) + 1;
981 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
982 if (!mono_error_ok (&error)) {
985 mono_error_set_pending_exception (&error);
989 g_assert (str_len < len);
990 memcpy (res, tmp, str_len * sizeof (gchar));
1000 * mono_string_builder_to_utf16:
1001 * @sb: the string builder
1003 * Converts to utf16 the contents of the MonoStringBuilder.
1005 * Returns: a utf16 string with the contents of the StringBuilder.
1007 * The return value must not be freed.
1008 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1011 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1018 g_assert (sb->chunkChars);
1020 guint len = mono_string_builder_capacity (sb);
1025 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1026 if (!mono_error_ok (&error)) {
1027 mono_error_set_pending_exception (&error);
1036 MonoStringBuilder* chunk = sb;
1038 if (chunk->chunkLength > 0) {
1039 // Check that we will not overrun our boundaries.
1040 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1042 if (chunk->chunkLength <= len) {
1043 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1045 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1048 len -= chunk->chunkLength;
1050 chunk = chunk->chunkPrevious;
1051 } while (chunk != NULL);
1056 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1058 mono_string_to_lpstr (MonoString *s)
1063 GError *error = NULL;
1069 as = CoTaskMemAlloc (1);
1074 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1076 MonoException *exc = mono_get_exception_argument ("string", error->message);
1077 g_error_free (error);
1078 mono_set_pending_exception (exc);
1081 as = CoTaskMemAlloc (len + 1);
1082 memcpy (as, tmp, len + 1);
1087 return mono_string_to_utf8 (s);
1092 mono_string_to_ansibstr (MonoString *string_obj)
1094 g_error ("UnmanagedMarshal.BStr is not implemented.");
1099 * mono_string_to_byvalstr:
1100 * @dst: Where to store the null-terminated utf8 decoded string.
1101 * @src: the MonoString to copy.
1102 * @size: the maximum number of bytes to copy.
1104 * Copies the MonoString pointed to by @src as a utf8 string
1105 * into @dst, it copies at most @size bytes into the destination.
1108 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1113 g_assert (dst != NULL);
1114 g_assert (size > 0);
1116 memset (dst, 0, size);
1120 s = mono_string_to_utf8 (src);
1121 len = MIN (size, strlen (s));
1124 memcpy (dst, s, len);
1129 * mono_string_to_byvalwstr:
1130 * @dst: Where to store the null-terminated utf16 decoded string.
1131 * @src: the MonoString to copy.
1132 * @size: the maximum number of bytes to copy.
1134 * Copies the MonoString pointed to by @src as a utf16 string into
1135 * @dst, it copies at most @size bytes into the destination (including
1136 * a terminating 16-bit zero terminator).
1139 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1143 g_assert (dst != NULL);
1144 g_assert (size > 1);
1147 memset (dst, 0, size * 2);
1151 len = MIN (size, (mono_string_length (src)));
1152 memcpy (dst, mono_string_chars (src), size * 2);
1153 if (size <= mono_string_length (src))
1155 *((gunichar2 *) dst + len) = 0;
1158 /* this is an icall, it sets the pending exception and returns NULL on error */
1160 mono_string_new_len_wrapper (const char *text, guint length)
1163 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1164 mono_error_set_pending_exception (&error);
1171 * mono_mb_emit_exception_marshal_directive:
1173 * This function assumes ownership of MSG, which should be malloc-ed.
1176 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1181 s = mono_image_strdup (mb->method->klass->image, msg);
1186 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1189 #endif /* !DISABLE_JIT */
1192 mono_type_to_ldind (MonoType *type)
1198 switch (type->type) {
1200 return CEE_LDIND_I1;
1202 case MONO_TYPE_BOOLEAN:
1203 return CEE_LDIND_U1;
1205 return CEE_LDIND_I2;
1207 case MONO_TYPE_CHAR:
1208 return CEE_LDIND_U2;
1210 return CEE_LDIND_I4;
1212 return CEE_LDIND_U4;
1216 case MONO_TYPE_FNPTR:
1218 case MONO_TYPE_CLASS:
1219 case MONO_TYPE_STRING:
1220 case MONO_TYPE_OBJECT:
1221 case MONO_TYPE_SZARRAY:
1222 case MONO_TYPE_ARRAY:
1223 return CEE_LDIND_REF;
1226 return CEE_LDIND_I8;
1228 return CEE_LDIND_R4;
1230 return CEE_LDIND_R8;
1231 case MONO_TYPE_VALUETYPE:
1232 if (type->data.klass->enumtype) {
1233 type = mono_class_enum_basetype (type->data.klass);
1237 case MONO_TYPE_TYPEDBYREF:
1239 case MONO_TYPE_GENERICINST:
1240 type = &type->data.generic_class->container_class->byval_arg;
1243 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1249 mono_type_to_stind (MonoType *type)
1252 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1256 switch (type->type) {
1259 case MONO_TYPE_BOOLEAN:
1260 return CEE_STIND_I1;
1263 case MONO_TYPE_CHAR:
1264 return CEE_STIND_I2;
1267 return CEE_STIND_I4;
1271 case MONO_TYPE_FNPTR:
1273 case MONO_TYPE_CLASS:
1274 case MONO_TYPE_STRING:
1275 case MONO_TYPE_OBJECT:
1276 case MONO_TYPE_SZARRAY:
1277 case MONO_TYPE_ARRAY:
1278 return CEE_STIND_REF;
1281 return CEE_STIND_I8;
1283 return CEE_STIND_R4;
1285 return CEE_STIND_R8;
1286 case MONO_TYPE_VALUETYPE:
1287 if (type->data.klass->enumtype) {
1288 type = mono_class_enum_basetype (type->data.klass);
1292 case MONO_TYPE_TYPEDBYREF:
1294 case MONO_TYPE_GENERICINST:
1295 type = &type->data.generic_class->container_class->byval_arg;
1298 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1306 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1309 case MONO_MARSHAL_CONV_BOOL_I4:
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_ldloc (mb, 0);
1312 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1313 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1314 mono_mb_emit_byte (mb, 3);
1315 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1316 mono_mb_emit_byte (mb, CEE_BR_S);
1317 mono_mb_emit_byte (mb, 1);
1318 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1319 mono_mb_emit_byte (mb, CEE_STIND_I1);
1321 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1325 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1326 mono_mb_emit_byte (mb, 3);
1327 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1328 mono_mb_emit_byte (mb, CEE_BR_S);
1329 mono_mb_emit_byte (mb, 1);
1330 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1331 mono_mb_emit_byte (mb, CEE_STIND_I1);
1333 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1334 MonoClass *eklass = NULL;
1337 if (type->type == MONO_TYPE_SZARRAY) {
1338 eklass = type->data.klass;
1340 g_assert_not_reached ();
1343 esize = mono_class_native_size (eklass, NULL);
1345 /* create a new array */
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1348 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1349 mono_mb_emit_byte (mb, CEE_STIND_REF);
1351 if (eklass->blittable) {
1352 /* copy the elements */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_byte (mb, CEE_LDIND_I);
1355 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1356 mono_mb_emit_byte (mb, CEE_ADD);
1357 mono_mb_emit_ldloc (mb, 0);
1358 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1359 mono_mb_emit_byte (mb, CEE_PREFIX1);
1360 mono_mb_emit_byte (mb, CEE_CPBLK);
1363 int array_var, src_var, dst_var, index_var;
1364 guint32 label2, label3;
1366 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1367 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1368 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1371 mono_mb_emit_ldloc (mb, 1);
1372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1373 mono_mb_emit_stloc (mb, array_var);
1375 /* save the old src pointer */
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_stloc (mb, src_var);
1378 /* save the old dst pointer */
1379 mono_mb_emit_ldloc (mb, 1);
1380 mono_mb_emit_stloc (mb, dst_var);
1382 /* Emit marshalling loop */
1383 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1384 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1385 mono_mb_emit_stloc (mb, index_var);
1388 label2 = mono_mb_get_label (mb);
1389 mono_mb_emit_ldloc (mb, index_var);
1390 mono_mb_emit_ldloc (mb, array_var);
1391 mono_mb_emit_byte (mb, CEE_LDLEN);
1392 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1394 /* src is already set */
1397 mono_mb_emit_ldloc (mb, array_var);
1398 mono_mb_emit_ldloc (mb, index_var);
1399 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1400 mono_mb_emit_stloc (mb, 1);
1402 /* Do the conversion */
1403 emit_struct_conv (mb, eklass, TRUE);
1406 mono_mb_emit_add_to_local (mb, index_var, 1);
1408 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1410 mono_mb_patch_branch (mb, label3);
1412 /* restore the old src pointer */
1413 mono_mb_emit_ldloc (mb, src_var);
1414 mono_mb_emit_stloc (mb, 0);
1415 /* restore the old dst pointer */
1416 mono_mb_emit_ldloc (mb, dst_var);
1417 mono_mb_emit_stloc (mb, 1);
1421 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1422 MonoClass *eclass = mono_defaults.char_class;
1424 /* create a new array */
1425 mono_mb_emit_ldloc (mb, 1);
1426 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1427 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1428 mono_mb_emit_byte (mb, CEE_STIND_REF);
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1434 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1437 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1438 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1439 mono_mb_emit_ldloc (mb, 1);
1440 mono_mb_emit_ldloc (mb, 0);
1441 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1442 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1444 mono_mb_emit_ldloc (mb, 1);
1445 mono_mb_emit_ldloc (mb, 0);
1446 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1448 mono_mb_emit_byte (mb, CEE_STIND_REF);
1450 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1451 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1452 mono_mb_emit_ldloc (mb, 1);
1453 mono_mb_emit_ldloc (mb, 0);
1454 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1455 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1461 mono_mb_emit_byte (mb, CEE_STIND_REF);
1463 case MONO_MARSHAL_CONV_STR_LPTSTR:
1464 mono_mb_emit_ldloc (mb, 1);
1465 mono_mb_emit_ldloc (mb, 0);
1466 mono_mb_emit_byte (mb, CEE_LDIND_I);
1468 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1470 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1472 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 case MONO_MARSHAL_CONV_STR_LPSTR:
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_byte (mb, CEE_LDIND_I);
1478 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1479 mono_mb_emit_byte (mb, CEE_STIND_REF);
1481 case MONO_MARSHAL_CONV_STR_LPWSTR:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1485 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1486 mono_mb_emit_byte (mb, CEE_STIND_REF);
1488 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1489 MonoClass *klass = mono_class_from_mono_type (type);
1490 int src_var, dst_var;
1492 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1493 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1495 /* *dst = new object */
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1498 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1499 mono_mb_emit_byte (mb, CEE_STIND_REF);
1501 /* save the old src pointer */
1502 mono_mb_emit_ldloc (mb, 0);
1503 mono_mb_emit_stloc (mb, src_var);
1504 /* save the old dst pointer */
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_stloc (mb, dst_var);
1508 /* dst = pointer to newly created object data */
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_byte (mb, CEE_LDIND_I);
1511 mono_mb_emit_icon (mb, sizeof (MonoObject));
1512 mono_mb_emit_byte (mb, CEE_ADD);
1513 mono_mb_emit_stloc (mb, 1);
1515 emit_struct_conv (mb, klass, TRUE);
1517 /* restore the old src pointer */
1518 mono_mb_emit_ldloc (mb, src_var);
1519 mono_mb_emit_stloc (mb, 0);
1520 /* restore the old dst pointer */
1521 mono_mb_emit_ldloc (mb, dst_var);
1522 mono_mb_emit_stloc (mb, 1);
1525 case MONO_MARSHAL_CONV_DEL_FTN: {
1526 MonoClass *klass = mono_class_from_mono_type (type);
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1530 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_I);
1533 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1534 mono_mb_emit_byte (mb, CEE_STIND_REF);
1537 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1538 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1542 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1543 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1544 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1545 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1547 #endif /* DISABLE_COM */
1549 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1551 * Passing SafeHandles as ref does not allow the unmanaged code
1552 * to change the SafeHandle value. If the value is changed,
1553 * we should issue a diagnostic exception (NotSupportedException)
1554 * that informs the user that changes to handles in unmanaged code
1557 * Since we currently have no access to the original
1558 * SafeHandle that was used during the marshalling,
1559 * for now we just ignore this, and ignore/discard any
1560 * changes that might have happened to the handle.
1565 case MONO_MARSHAL_CONV_HANDLEREF: {
1567 * Passing HandleRefs in a struct that is ref()ed does not
1568 * copy the values back to the HandleRef
1573 case MONO_MARSHAL_CONV_STR_BSTR:
1574 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1575 case MONO_MARSHAL_CONV_STR_TBSTR:
1576 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1578 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1580 mono_mb_emit_exception_marshal_directive (mb, msg);
1587 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1590 if (!ind_store_type)
1591 ind_store_type = &dummy;
1592 *ind_store_type = CEE_STIND_I;
1594 case MONO_MARSHAL_CONV_STR_LPWSTR:
1595 return mono_marshal_string_to_utf16;
1596 case MONO_MARSHAL_CONV_LPWSTR_STR:
1597 *ind_store_type = CEE_STIND_REF;
1598 return ves_icall_mono_string_from_utf16;
1599 case MONO_MARSHAL_CONV_LPTSTR_STR:
1600 *ind_store_type = CEE_STIND_REF;
1601 return mono_string_new_wrapper;
1602 case MONO_MARSHAL_CONV_LPSTR_STR:
1603 *ind_store_type = CEE_STIND_REF;
1604 return mono_string_new_wrapper;
1605 case MONO_MARSHAL_CONV_STR_LPTSTR:
1607 return mono_marshal_string_to_utf16;
1609 return mono_string_to_lpstr;
1611 case MONO_MARSHAL_CONV_STR_LPSTR:
1612 return mono_string_to_lpstr;
1613 case MONO_MARSHAL_CONV_STR_BSTR:
1614 return mono_string_to_bstr;
1615 case MONO_MARSHAL_CONV_BSTR_STR:
1616 *ind_store_type = CEE_STIND_REF;
1617 return mono_string_from_bstr_icall;
1618 case MONO_MARSHAL_CONV_STR_TBSTR:
1619 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1620 return mono_string_to_ansibstr;
1621 case MONO_MARSHAL_CONV_SB_LPSTR:
1622 return mono_string_builder_to_utf8;
1623 case MONO_MARSHAL_CONV_SB_LPTSTR:
1625 return mono_string_builder_to_utf16;
1627 return mono_string_builder_to_utf8;
1629 case MONO_MARSHAL_CONV_SB_LPWSTR:
1630 return mono_string_builder_to_utf16;
1631 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1632 return mono_array_to_savearray;
1633 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1634 return mono_array_to_lparray;
1635 case MONO_MARSHAL_FREE_LPARRAY:
1636 return mono_free_lparray;
1637 case MONO_MARSHAL_CONV_DEL_FTN:
1638 return mono_delegate_to_ftnptr;
1639 case MONO_MARSHAL_CONV_FTN_DEL:
1640 *ind_store_type = CEE_STIND_REF;
1641 return mono_ftnptr_to_delegate;
1642 case MONO_MARSHAL_CONV_LPSTR_SB:
1643 *ind_store_type = CEE_STIND_REF;
1644 return mono_string_utf8_to_builder;
1645 case MONO_MARSHAL_CONV_LPTSTR_SB:
1646 *ind_store_type = CEE_STIND_REF;
1648 return mono_string_utf16_to_builder;
1650 return mono_string_utf8_to_builder;
1652 case MONO_MARSHAL_CONV_LPWSTR_SB:
1653 *ind_store_type = CEE_STIND_REF;
1654 return mono_string_utf16_to_builder;
1655 case MONO_MARSHAL_FREE_ARRAY:
1656 return mono_marshal_free_array;
1657 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1658 return mono_string_to_byvalstr;
1659 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1660 return mono_string_to_byvalwstr;
1662 g_assert_not_reached ();
1669 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1675 case MONO_MARSHAL_CONV_BOOL_I4:
1676 mono_mb_emit_ldloc (mb, 1);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1679 mono_mb_emit_byte (mb, CEE_STIND_I4);
1681 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1682 mono_mb_emit_ldloc (mb, 1);
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1685 mono_mb_emit_byte (mb, CEE_NEG);
1686 mono_mb_emit_byte (mb, CEE_STIND_I2);
1688 case MONO_MARSHAL_CONV_STR_LPWSTR:
1689 case MONO_MARSHAL_CONV_STR_LPSTR:
1690 case MONO_MARSHAL_CONV_STR_LPTSTR:
1691 case MONO_MARSHAL_CONV_STR_BSTR:
1692 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1693 case MONO_MARSHAL_CONV_STR_TBSTR: {
1696 /* free space if free == true */
1697 mono_mb_emit_ldloc (mb, 2);
1698 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_byte (mb, CEE_LDIND_I);
1701 mono_mb_emit_icall (mb, g_free);
1702 mono_mb_patch_short_branch (mb, pos);
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1707 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1708 mono_mb_emit_byte (mb, stind_op);
1711 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1712 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1713 case MONO_MARSHAL_CONV_DEL_FTN:
1714 mono_mb_emit_ldloc (mb, 1);
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1717 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1718 mono_mb_emit_byte (mb, stind_op);
1720 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1721 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1724 mono_mb_emit_ldloc (mb, 1); /* dst */
1725 mono_mb_emit_ldloc (mb, 0);
1726 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1727 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1728 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1731 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1732 MonoClass *eklass = NULL;
1735 if (type->type == MONO_TYPE_SZARRAY) {
1736 eklass = type->data.klass;
1738 g_assert_not_reached ();
1741 if (eklass->valuetype)
1742 esize = mono_class_native_size (eklass, NULL);
1744 esize = sizeof (gpointer);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1748 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1750 if (eklass->blittable) {
1751 mono_mb_emit_ldloc (mb, 1);
1752 mono_mb_emit_ldloc (mb, 0);
1753 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1754 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1755 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1756 mono_mb_emit_byte (mb, CEE_PREFIX1);
1757 mono_mb_emit_byte (mb, CEE_CPBLK);
1759 int array_var, src_var, dst_var, index_var;
1760 guint32 label2, label3;
1762 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1763 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1764 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1769 mono_mb_emit_stloc (mb, array_var);
1771 /* save the old src pointer */
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_stloc (mb, src_var);
1774 /* save the old dst pointer */
1775 mono_mb_emit_ldloc (mb, 1);
1776 mono_mb_emit_stloc (mb, dst_var);
1778 /* Emit marshalling loop */
1779 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1780 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1781 mono_mb_emit_stloc (mb, index_var);
1784 label2 = mono_mb_get_label (mb);
1785 mono_mb_emit_ldloc (mb, index_var);
1786 mono_mb_emit_ldloc (mb, array_var);
1787 mono_mb_emit_byte (mb, CEE_LDLEN);
1788 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1791 mono_mb_emit_ldloc (mb, array_var);
1792 mono_mb_emit_ldloc (mb, index_var);
1793 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1794 mono_mb_emit_stloc (mb, 0);
1796 /* dst is already set */
1798 /* Do the conversion */
1799 emit_struct_conv (mb, eklass, FALSE);
1802 mono_mb_emit_add_to_local (mb, index_var, 1);
1804 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1806 mono_mb_patch_branch (mb, label3);
1808 /* restore the old src pointer */
1809 mono_mb_emit_ldloc (mb, src_var);
1810 mono_mb_emit_stloc (mb, 0);
1811 /* restore the old dst pointer */
1812 mono_mb_emit_ldloc (mb, dst_var);
1813 mono_mb_emit_stloc (mb, 1);
1816 mono_mb_patch_branch (mb, pos);
1819 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1820 mono_mb_emit_ldloc (mb, 0);
1821 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1822 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1824 mono_mb_emit_ldloc (mb, 1);
1825 mono_mb_emit_ldloc (mb, 0);
1826 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1827 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1828 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1829 mono_mb_patch_short_branch (mb, pos);
1832 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1833 int src_var, dst_var;
1835 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1836 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, CEE_LDIND_I);
1840 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1842 /* save the old src pointer */
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_stloc (mb, src_var);
1845 /* save the old dst pointer */
1846 mono_mb_emit_ldloc (mb, 1);
1847 mono_mb_emit_stloc (mb, dst_var);
1849 /* src = pointer to object data */
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_byte (mb, CEE_LDIND_I);
1852 mono_mb_emit_icon (mb, sizeof (MonoObject));
1853 mono_mb_emit_byte (mb, CEE_ADD);
1854 mono_mb_emit_stloc (mb, 0);
1856 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1858 /* restore the old src pointer */
1859 mono_mb_emit_ldloc (mb, src_var);
1860 mono_mb_emit_stloc (mb, 0);
1861 /* restore the old dst pointer */
1862 mono_mb_emit_ldloc (mb, dst_var);
1863 mono_mb_emit_stloc (mb, 1);
1865 mono_mb_patch_branch (mb, pos);
1870 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1871 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1872 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1873 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1875 #endif /* DISABLE_COM */
1877 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1880 mono_mb_emit_ldloc (mb, 0);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1883 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1884 mono_mb_patch_branch (mb, pos);
1886 /* Pull the handle field from SafeHandle */
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_ldloc (mb, 0);
1889 mono_mb_emit_byte (mb, CEE_LDIND_I);
1890 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1891 mono_mb_emit_byte (mb, CEE_LDIND_I);
1892 mono_mb_emit_byte (mb, CEE_STIND_I);
1896 case MONO_MARSHAL_CONV_HANDLEREF: {
1897 mono_mb_emit_ldloc (mb, 1);
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1900 mono_mb_emit_byte (mb, CEE_ADD);
1901 mono_mb_emit_byte (mb, CEE_LDIND_I);
1902 mono_mb_emit_byte (mb, CEE_STIND_I);
1907 g_error ("marshalling conversion %d not implemented", conv);
1913 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1914 MonoMarshalNative string_encoding)
1916 MonoMarshalType *info;
1920 emit_struct_conv(mb, klass->parent, to_object);
1922 info = mono_marshal_load_type_info (klass);
1924 if (info->native_size == 0)
1927 if (klass->blittable) {
1928 int msize = mono_class_value_size (klass, NULL);
1929 g_assert (msize == info->native_size);
1930 mono_mb_emit_ldloc (mb, 1);
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_icon (mb, msize);
1933 mono_mb_emit_byte (mb, CEE_PREFIX1);
1934 mono_mb_emit_byte (mb, CEE_CPBLK);
1936 mono_mb_emit_add_to_local (mb, 0, msize);
1937 mono_mb_emit_add_to_local (mb, 1, msize);
1941 if (klass != mono_class_try_get_safehandle_class ()) {
1942 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1943 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1944 mono_type_full_name (&klass->byval_arg));
1945 mono_mb_emit_exception_marshal_directive (mb, msg);
1950 for (i = 0; i < info->num_fields; i++) {
1951 MonoMarshalNative ntype;
1952 MonoMarshalConv conv;
1953 MonoType *ftype = info->fields [i].field->type;
1956 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1958 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1961 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1964 msize = klass->instance_size - info->fields [i].field->offset;
1965 usize = info->native_size - info->fields [i].offset;
1967 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1968 usize = info->fields [i + 1].offset - info->fields [i].offset;
1971 if (klass != mono_class_try_get_safehandle_class ()){
1973 * FIXME: Should really check for usize==0 and msize>0, but we apply
1974 * the layout to the managed structure as well.
1977 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1978 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1979 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1980 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1981 "reference field at the same offset as another field.",
1982 mono_type_full_name (&klass->byval_arg));
1987 case MONO_MARSHAL_CONV_NONE: {
1990 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1991 g_assert (!ftype->byref);
1992 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1993 mono_mb_emit_ldloc (mb, 1);
1994 mono_mb_emit_ldloc (mb, 0);
1995 mono_mb_emit_byte (mb, CEE_LDIND_I);
1996 mono_mb_emit_byte (mb, CEE_STIND_I);
2007 case MONO_TYPE_BOOLEAN:
2010 case MONO_TYPE_CHAR:
2016 mono_mb_emit_ldloc (mb, 1);
2017 mono_mb_emit_ldloc (mb, 0);
2018 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2020 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2021 mono_mb_emit_byte (mb, CEE_STIND_I2);
2023 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2024 mono_mb_emit_byte (mb, CEE_STIND_I1);
2027 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2028 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2031 case MONO_TYPE_VALUETYPE: {
2032 int src_var, dst_var;
2034 if (ftype->data.klass->enumtype) {
2035 ftype = mono_class_enum_basetype (ftype->data.klass);
2039 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2040 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2042 /* save the old src pointer */
2043 mono_mb_emit_ldloc (mb, 0);
2044 mono_mb_emit_stloc (mb, src_var);
2045 /* save the old dst pointer */
2046 mono_mb_emit_ldloc (mb, 1);
2047 mono_mb_emit_stloc (mb, dst_var);
2049 emit_struct_conv (mb, ftype->data.klass, to_object);
2051 /* restore the old src pointer */
2052 mono_mb_emit_ldloc (mb, src_var);
2053 mono_mb_emit_stloc (mb, 0);
2054 /* restore the old dst pointer */
2055 mono_mb_emit_ldloc (mb, dst_var);
2056 mono_mb_emit_stloc (mb, 1);
2059 case MONO_TYPE_OBJECT: {
2062 static MonoMethod *variant_clear = NULL;
2063 static MonoMethod *get_object_for_native_variant = NULL;
2066 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2067 if (!get_object_for_native_variant)
2068 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2069 mono_mb_emit_ldloc (mb, 1);
2070 mono_mb_emit_ldloc (mb, 0);
2071 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2072 mono_mb_emit_byte (mb, CEE_STIND_REF);
2074 mono_mb_emit_ldloc (mb, 0);
2075 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2078 static MonoMethod *get_native_variant_for_object = NULL;
2080 if (!get_native_variant_for_object)
2081 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2083 mono_mb_emit_ldloc (mb, 0);
2084 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2085 mono_mb_emit_ldloc (mb, 1);
2086 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2089 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2090 mono_mb_emit_exception_marshal_directive (mb, msg);
2096 g_warning ("marshaling type %02x not implemented", ftype->type);
2097 g_assert_not_reached ();
2102 int src_var, dst_var;
2104 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2105 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2107 /* save the old src pointer */
2108 mono_mb_emit_ldloc (mb, 0);
2109 mono_mb_emit_stloc (mb, src_var);
2110 /* save the old dst pointer */
2111 mono_mb_emit_ldloc (mb, 1);
2112 mono_mb_emit_stloc (mb, dst_var);
2115 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2117 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2119 /* restore the old src pointer */
2120 mono_mb_emit_ldloc (mb, src_var);
2121 mono_mb_emit_stloc (mb, 0);
2122 /* restore the old dst pointer */
2123 mono_mb_emit_ldloc (mb, dst_var);
2124 mono_mb_emit_stloc (mb, 1);
2129 mono_mb_emit_add_to_local (mb, 0, usize);
2130 mono_mb_emit_add_to_local (mb, 1, msize);
2132 mono_mb_emit_add_to_local (mb, 0, msize);
2133 mono_mb_emit_add_to_local (mb, 1, usize);
2139 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2141 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2145 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2147 /* Call DestroyStructure */
2148 /* FIXME: Only do this if needed */
2149 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2150 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2151 mono_mb_emit_ldloc (mb, struct_var);
2152 mono_mb_emit_icall (mb, mono_struct_delete_old);
2156 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2158 int pos_noabort, pos_noex;
2160 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2161 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2162 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2163 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2165 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2166 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2168 mono_mb_emit_icall (mb, checkpoint_func);
2169 /* Throw the exception returned by the checkpoint function, if any */
2170 mono_mb_emit_byte (mb, CEE_DUP);
2171 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2172 mono_mb_emit_byte (mb, CEE_THROW);
2173 mono_mb_patch_branch (mb, pos_noex);
2174 mono_mb_emit_byte (mb, CEE_POP);
2176 mono_mb_patch_branch (mb, pos_noabort);
2180 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2182 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2185 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2189 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2191 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2195 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2197 emit_thread_interrupt_checkpoint (mb);
2201 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2203 emit_thread_force_interrupt_checkpoint (mb);
2206 #endif /* DISABLE_JIT */
2208 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2209 static MonoAsyncResult *
2210 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2213 MonoMulticastDelegate *mcast_delegate;
2217 g_assert (delegate);
2218 mcast_delegate = (MonoMulticastDelegate *) delegate;
2219 if (mcast_delegate->delegates != NULL) {
2220 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2224 #ifndef DISABLE_REMOTING
2225 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2226 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2227 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2228 /* If the target is a proxy, make a direct call. Is proxy's work
2229 // to make the call asynchronous.
2231 MonoMethodMessage *msg;
2232 MonoDelegate *async_callback;
2234 MonoAsyncResult *ares;
2236 MonoArray *out_args;
2237 method = delegate->method;
2239 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2240 if (mono_error_set_pending_exception (&error))
2242 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2243 if (mono_error_set_pending_exception (&error))
2245 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2246 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2247 MONO_OBJECT_SETREF (msg, async_result, ares);
2248 msg->call_type = CallType_BeginInvoke;
2251 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2252 if (!mono_error_ok (&error)) {
2253 mono_error_set_pending_exception (&error);
2257 mono_set_pending_exception ((MonoException *) exc);
2263 klass = delegate->object.vtable->klass;
2265 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2267 method = mono_get_delegate_invoke (klass);
2270 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2271 mono_error_set_pending_exception (&error);
2278 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2280 int i, params_var, tmp_var;
2282 /* allocate local (pointer) *params[] */
2283 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2284 /* allocate local (pointer) tmp */
2285 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2287 /* alloate space on stack to store an array of pointers to the arguments */
2288 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2289 mono_mb_emit_byte (mb, CEE_PREFIX1);
2290 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2291 mono_mb_emit_stloc (mb, params_var);
2294 mono_mb_emit_ldloc (mb, params_var);
2295 mono_mb_emit_stloc (mb, tmp_var);
2297 if (save_this && sig->hasthis) {
2298 mono_mb_emit_ldloc (mb, tmp_var);
2299 mono_mb_emit_ldarg_addr (mb, 0);
2300 mono_mb_emit_byte (mb, CEE_STIND_I);
2301 /* tmp = tmp + sizeof (gpointer) */
2302 if (sig->param_count)
2303 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2307 for (i = 0; i < sig->param_count; i++) {
2308 mono_mb_emit_ldloc (mb, tmp_var);
2309 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2310 mono_mb_emit_byte (mb, CEE_STIND_I);
2311 /* tmp = tmp + sizeof (gpointer) */
2312 if (i < (sig->param_count - 1))
2313 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2319 #endif /* DISABLE_JIT */
2322 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2326 GString *res = g_string_new ("");
2329 g_string_append (res, prefix);
2330 g_string_append_c (res, '_');
2333 mono_type_get_desc (res, sig->ret, FALSE);
2336 g_string_append (res, "__this__");
2338 for (i = 0; i < sig->param_count; ++i) {
2339 g_string_append_c (res, '_');
2340 mono_type_get_desc (res, sig->params [i], FALSE);
2343 g_string_free (res, FALSE);
2348 * mono_marshal_get_string_encoding:
2350 * Return the string encoding which should be used for a given parameter.
2352 static MonoMarshalNative
2353 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2355 /* First try the parameter marshal info */
2357 if (spec->native == MONO_NATIVE_LPARRAY) {
2358 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2359 return spec->data.array_data.elem_type;
2362 return spec->native;
2366 return MONO_NATIVE_LPSTR;
2368 /* Then try the method level marshal info */
2369 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2370 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2371 return MONO_NATIVE_LPSTR;
2372 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2373 return MONO_NATIVE_LPWSTR;
2374 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2376 return MONO_NATIVE_LPWSTR;
2378 return MONO_NATIVE_LPSTR;
2381 return MONO_NATIVE_LPSTR;
2385 static MonoMarshalConv
2386 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2388 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2391 case MONO_NATIVE_LPWSTR:
2392 return MONO_MARSHAL_CONV_STR_LPWSTR;
2393 case MONO_NATIVE_LPSTR:
2394 case MONO_NATIVE_VBBYREFSTR:
2395 return MONO_MARSHAL_CONV_STR_LPSTR;
2396 case MONO_NATIVE_LPTSTR:
2397 return MONO_MARSHAL_CONV_STR_LPTSTR;
2398 case MONO_NATIVE_BSTR:
2399 return MONO_MARSHAL_CONV_STR_BSTR;
2401 return MONO_MARSHAL_CONV_INVALID;
2405 static MonoMarshalConv
2406 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2408 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2411 case MONO_NATIVE_LPWSTR:
2412 return MONO_MARSHAL_CONV_SB_LPWSTR;
2414 case MONO_NATIVE_LPSTR:
2415 return MONO_MARSHAL_CONV_SB_LPSTR;
2417 case MONO_NATIVE_LPTSTR:
2418 return MONO_MARSHAL_CONV_SB_LPTSTR;
2421 return MONO_MARSHAL_CONV_INVALID;
2425 static MonoMarshalConv
2426 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2428 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2433 case MONO_NATIVE_LPWSTR:
2435 return MONO_MARSHAL_CONV_LPWSTR_STR;
2436 case MONO_NATIVE_LPSTR:
2437 case MONO_NATIVE_VBBYREFSTR:
2438 return MONO_MARSHAL_CONV_LPSTR_STR;
2439 case MONO_NATIVE_LPTSTR:
2440 return MONO_MARSHAL_CONV_LPTSTR_STR;
2441 case MONO_NATIVE_BSTR:
2442 return MONO_MARSHAL_CONV_BSTR_STR;
2444 return MONO_MARSHAL_CONV_INVALID;
2448 static MonoMarshalConv
2449 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2451 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2456 case MONO_NATIVE_LPWSTR:
2458 * mono_string_builder_to_utf16 does not allocate a
2459 * new buffer, so no need to free it.
2462 return MONO_MARSHAL_CONV_LPWSTR_SB;
2463 case MONO_NATIVE_LPSTR:
2464 return MONO_MARSHAL_CONV_LPSTR_SB;
2466 case MONO_NATIVE_LPTSTR:
2467 return MONO_MARSHAL_CONV_LPTSTR_SB;
2470 return MONO_MARSHAL_CONV_INVALID;
2475 * Return whenever a field of a native structure or an array member needs to
2479 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2481 MonoMarshalNative encoding;
2484 case MONO_TYPE_VALUETYPE:
2485 /* FIXME: Optimize this */
2487 case MONO_TYPE_OBJECT:
2488 case MONO_TYPE_CLASS:
2489 if (t->data.klass == mono_defaults.stringbuilder_class) {
2491 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2495 case MONO_TYPE_STRING:
2496 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2497 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2504 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2507 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2510 mono_marshal_lock ();
2513 g_hash_table_new (hash_func, equal_func);
2514 mono_memory_barrier ();
2517 mono_marshal_unlock ();
2523 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2525 return get_cache (var, hash_func, equal_func);
2529 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2533 mono_marshal_lock ();
2534 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2535 mono_marshal_unlock ();
2542 * Create a MonoMethod from MB, set INFO as wrapper info.
2545 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2546 int max_stack, WrapperInfo *info)
2550 res = mono_mb_create_method (mb, sig, max_stack);
2552 mono_marshal_set_wrapper_info (res, info);
2556 /* Create the method from the builder and place it in the cache */
2558 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2559 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2560 int max_stack, WrapperInfo *info, gboolean *out_found)
2567 mono_marshal_lock ();
2568 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2569 mono_marshal_unlock ();
2572 newm = mono_mb_create_method (mb, sig, max_stack);
2573 mono_marshal_lock ();
2574 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2577 g_hash_table_insert (cache, key, res);
2578 mono_marshal_set_wrapper_info (res, info);
2579 mono_marshal_unlock ();
2583 mono_marshal_unlock ();
2584 mono_free_method (newm);
2592 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2593 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2596 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2600 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2603 int wrapper_type = wrapper->wrapper_type;
2606 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2609 info = mono_marshal_get_wrapper_info (wrapper);
2611 switch (wrapper_type) {
2612 case MONO_WRAPPER_REMOTING_INVOKE:
2613 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2614 case MONO_WRAPPER_XDOMAIN_INVOKE:
2615 m = info->d.remoting.method;
2616 if (wrapper->is_inflated) {
2620 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2621 * contains an uninflated method.
2623 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2624 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2628 case MONO_WRAPPER_SYNCHRONIZED:
2629 m = info->d.synchronized.method;
2630 if (wrapper->is_inflated) {
2633 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2634 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2638 case MONO_WRAPPER_UNBOX:
2639 return info->d.unbox.method;
2640 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2641 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2642 return info->d.managed_to_native.method;
2645 case MONO_WRAPPER_RUNTIME_INVOKE:
2646 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2647 return info->d.runtime_invoke.method;
2656 * mono_marshal_get_wrapper_info:
2658 * Retrieve the WrapperInfo structure associated with WRAPPER.
2661 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2663 g_assert (wrapper->wrapper_type);
2665 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2669 * mono_marshal_set_wrapper_info:
2671 * Set the WrapperInfo structure associated with the wrapper
2672 * method METHOD to INFO.
2675 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2679 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2682 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2687 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2691 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2692 info->subtype = subtype;
2697 * get_wrapper_target_class:
2699 * Return the class where a wrapper method should be placed.
2702 get_wrapper_target_class (MonoImage *image)
2709 * - can't put all wrappers into an mscorlib class, because they reference
2710 * metadata (signature) so they should be put into the same image as the
2711 * method they wrap, so they are unloaded together.
2712 * - putting them into a class with a type initalizer could cause the
2713 * initializer to be executed which can be a problem if the wrappers are
2715 * - putting them into an inflated class can cause problems if the the
2716 * class is deleted because it references an image which is unloaded.
2717 * To avoid these problems, we put the wrappers into the <Module> class of
2720 if (image_is_dynamic (image)) {
2721 klass = ((MonoDynamicImage*)image)->wrappers_type;
2723 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2724 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2732 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2733 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2737 * check_generic_wrapper_cache:
2739 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2740 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2741 * generic method definition.
2744 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2747 MonoMethod *inst, *def;
2748 MonoGenericContext *ctx;
2750 g_assert (orig_method->is_inflated);
2751 ctx = mono_method_get_context (orig_method);
2754 * Look for the instance
2756 res = mono_marshal_find_in_cache (cache, key);
2761 * Look for the definition
2763 def = mono_marshal_find_in_cache (cache, def_key);
2766 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2767 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2769 mono_memory_barrier ();
2770 mono_marshal_lock ();
2771 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2773 g_hash_table_insert (cache, key, inst);
2776 mono_marshal_unlock ();
2783 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2786 MonoMethod *inst, *res;
2789 * We use the same cache for the generic definition and the instances.
2791 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2792 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2793 mono_memory_barrier ();
2794 mono_marshal_lock ();
2795 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2797 g_hash_table_insert (cache, key, inst);
2800 mono_marshal_unlock ();
2805 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2809 MonoMethod *inst, *def;
2812 * Look for the instance
2814 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2819 * Look for the definition
2821 def = mono_marshal_find_in_cache (cache, def_method->klass);
2823 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2824 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2827 mono_memory_barrier ();
2828 mono_marshal_lock ();
2829 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2831 g_hash_table_insert (cache, orig_method->klass, inst);
2834 mono_marshal_unlock ();
2841 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2844 MonoMethod *inst, *res;
2847 * We use the same cache for the generic definition and the instances.
2849 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2850 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2852 mono_memory_barrier ();
2853 mono_marshal_lock ();
2854 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2856 g_hash_table_insert (cache, orig_method->klass, inst);
2859 mono_marshal_unlock ();
2864 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2866 MonoMethodSignature *sig;
2867 MonoMethodBuilder *mb;
2872 MonoGenericContext *ctx = NULL;
2873 MonoMethod *orig_method = NULL;
2875 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2876 !strcmp (method->name, "BeginInvoke"));
2879 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2881 if (method->is_inflated) {
2882 orig_method = method;
2883 ctx = &((MonoMethodInflated*)method)->context;
2884 method = ((MonoMethodInflated*)method)->declaring;
2887 sig = mono_signature_no_pinvoke (method);
2893 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2894 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2898 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2899 (GHashFunc)mono_signature_hash,
2900 (GCompareFunc)mono_metadata_signature_equal);
2901 if ((res = mono_marshal_find_in_cache (cache, sig)))
2905 g_assert (sig->hasthis);
2907 name = mono_signature_to_name (sig, "begin_invoke");
2909 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2911 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2915 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2917 mono_mb_emit_ldarg (mb, 0);
2918 mono_mb_emit_ldloc (mb, params_var);
2919 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2920 mono_mb_emit_byte (mb, CEE_RET);
2925 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2926 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2928 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2935 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2937 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2940 MonoDomain *domain = mono_domain_get ();
2941 MonoAsyncResult *ares;
2942 MonoMethod *method = NULL;
2943 MonoMethodSignature *sig;
2944 MonoMethodMessage *msg;
2945 MonoObject *res, *exc;
2946 MonoArray *out_args;
2949 g_assert (delegate);
2951 if (!delegate->method_info) {
2952 g_assert (delegate->method);
2953 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2954 if (!mono_error_ok (&error)) {
2955 mono_error_set_pending_exception (&error);
2958 MONO_OBJECT_SETREF (delegate, method_info, rm);
2961 if (!delegate->method_info || !delegate->method_info->method)
2962 g_assert_not_reached ();
2964 klass = delegate->object.vtable->klass;
2966 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2967 g_assert (method != NULL);
2969 sig = mono_signature_no_pinvoke (method);
2971 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2972 if (mono_error_set_pending_exception (&error))
2975 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2977 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."));
2981 if (ares->async_delegate != (MonoObject*)delegate) {
2982 mono_set_pending_exception (mono_get_exception_invalid_operation (
2983 "The IAsyncResult object provided does not match this delegate."));
2987 #ifndef DISABLE_REMOTING
2988 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2989 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2990 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2991 if (!mono_error_ok (&error)) {
2992 mono_error_set_pending_exception (&error);
2995 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
2996 if (mono_error_set_pending_exception (&error))
2998 msg->call_type = CallType_EndInvoke;
2999 MONO_OBJECT_SETREF (msg, async_result, ares);
3000 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3001 if (!mono_error_ok (&error)) {
3002 mono_error_set_pending_exception (&error);
3008 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3009 if (mono_error_set_pending_exception (&error))
3014 if (((MonoException*)exc)->stack_trace) {
3015 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3017 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3019 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3022 mono_set_pending_exception ((MonoException*)exc);
3025 mono_method_return_message_restore (method, params, out_args, &error);
3026 mono_error_set_pending_exception (&error);
3033 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3035 MonoType *t = mono_type_get_underlying_type (return_type);
3037 if (return_type->byref)
3038 return_type = &mono_defaults.int_class->byval_arg;
3041 case MONO_TYPE_VOID:
3042 g_assert_not_reached ();
3045 case MONO_TYPE_STRING:
3046 case MONO_TYPE_CLASS:
3047 case MONO_TYPE_OBJECT:
3048 case MONO_TYPE_ARRAY:
3049 case MONO_TYPE_SZARRAY:
3053 case MONO_TYPE_BOOLEAN:
3056 case MONO_TYPE_CHAR:
3066 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3067 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3069 case MONO_TYPE_GENERICINST:
3070 if (!mono_type_generic_inst_is_valuetype (t))
3073 case MONO_TYPE_VALUETYPE: {
3074 MonoClass *klass = mono_class_from_mono_type (return_type);
3075 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3076 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3080 case MONO_TYPE_MVAR: {
3081 MonoClass *klass = mono_class_from_mono_type (return_type);
3082 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3086 g_warning ("type 0x%x not handled", return_type->type);
3087 g_assert_not_reached ();
3090 mono_mb_emit_byte (mb, CEE_RET);
3093 #endif /* DISABLE_JIT */
3096 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3098 MonoMethodSignature *sig;
3099 MonoMethodBuilder *mb;
3104 MonoGenericContext *ctx = NULL;
3105 MonoMethod *orig_method = NULL;
3107 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3108 !strcmp (method->name, "EndInvoke"));
3111 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3113 if (method->is_inflated) {
3114 orig_method = method;
3115 ctx = &((MonoMethodInflated*)method)->context;
3116 method = ((MonoMethodInflated*)method)->declaring;
3119 sig = mono_signature_no_pinvoke (method);
3125 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3126 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3130 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3131 (GHashFunc)mono_signature_hash,
3132 (GCompareFunc)mono_metadata_signature_equal);
3133 if ((res = mono_marshal_find_in_cache (cache, sig)))
3137 g_assert (sig->hasthis);
3139 name = mono_signature_to_name (sig, "end_invoke");
3141 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3143 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3147 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3149 mono_mb_emit_ldarg (mb, 0);
3150 mono_mb_emit_ldloc (mb, params_var);
3151 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3153 if (sig->ret->type == MONO_TYPE_VOID) {
3154 mono_mb_emit_byte (mb, CEE_POP);
3155 mono_mb_emit_byte (mb, CEE_RET);
3157 mono_mb_emit_restore_result (mb, sig->ret);
3162 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3163 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3165 res = mono_mb_create_and_cache (cache, sig,
3166 mb, sig, sig->param_count + 16);
3175 MonoMethodSignature *sig;
3177 } SignaturePointerPair;
3180 signature_pointer_pair_hash (gconstpointer data)
3182 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3184 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3188 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3190 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3191 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3195 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3197 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3199 return pair->pointer == user_data;
3203 free_signature_pointer_pair (SignaturePointerPair *pair)
3209 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3211 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3213 MonoMethodBuilder *mb;
3216 gpointer cache_key = NULL;
3217 SignaturePointerPair key;
3218 SignaturePointerPair *new_key;
3219 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3220 int pos0, pos1, pos2;
3222 MonoClass *target_class = NULL;
3223 gboolean closed_over_null = FALSE;
3224 MonoGenericContext *ctx = NULL;
3225 MonoGenericContainer *container = NULL;
3226 MonoMethod *orig_method = NULL;
3228 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3232 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3233 !strcmp (method->name, "Invoke"));
3235 invoke_sig = sig = mono_signature_no_pinvoke (method);
3238 * If the delegate target is null, and the target method is not static, a virtual
3239 * call is made to that method with the first delegate argument as this. This is
3240 * a non-documented .NET feature.
3243 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3244 if (target_method->is_inflated) {
3246 MonoType *target_type;
3248 g_assert (method->signature->hasthis);
3249 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3250 mono_method_get_context (method), &error);
3251 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3252 target_class = mono_class_from_mono_type (target_type);
3254 target_class = target_method->klass;
3257 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3260 if (static_method_with_first_arg_bound) {
3261 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3262 g_assert (!callvirt);
3263 invoke_sig = mono_method_signature (target_method);
3267 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3269 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3270 orig_method = method;
3271 ctx = &((MonoMethodInflated*)method)->context;
3272 method = ((MonoMethodInflated*)method)->declaring;
3274 container = mono_method_get_generic_container (method);
3276 container = method->klass->generic_container;
3277 g_assert (container);
3279 invoke_sig = sig = mono_signature_no_pinvoke (method);
3286 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3287 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3290 cache_key = method->klass;
3291 } else if (static_method_with_first_arg_bound) {
3292 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3293 (GHashFunc)mono_signature_hash,
3294 (GCompareFunc)mono_metadata_signature_equal);
3296 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3298 res = mono_marshal_find_in_cache (cache, invoke_sig);
3301 cache_key = invoke_sig;
3302 } else if (callvirt) {
3303 GHashTable **cache_ptr;
3305 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3307 /* We need to cache the signature+method pair */
3308 mono_marshal_lock ();
3310 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3312 key.sig = invoke_sig;
3313 key.pointer = target_method;
3314 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3315 mono_marshal_unlock ();
3319 // Inflated methods should not be in this cache because it's not stored on the imageset.
3320 g_assert (!method->is_inflated);
3321 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3322 (GHashFunc)mono_signature_hash,
3323 (GCompareFunc)mono_metadata_signature_equal);
3324 res = mono_marshal_find_in_cache (cache, sig);
3330 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3331 static_sig->hasthis = 0;
3332 if (!static_method_with_first_arg_bound)
3333 invoke_sig = static_sig;
3335 if (static_method_with_first_arg_bound)
3336 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3337 else if (closed_over_null)
3338 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3340 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3342 name = mono_signature_to_name (invoke_sig, "invoke");
3344 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3346 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3350 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3352 /* allocate local 0 (object) */
3353 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3354 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3355 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3356 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3357 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3360 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3362 g_assert (sig->hasthis);
3365 * {type: sig->ret} res;
3366 * if (delegates == null) {
3367 * return this.<target> ( args .. );
3369 * int i = 0, len = this.delegates.Length;
3371 * res = this.delegates [i].Invoke ( args .. );
3372 * } while (++i < len);
3377 /* this wrapper can be used in unmanaged-managed transitions */
3378 emit_thread_interrupt_checkpoint (mb);
3380 /* delegates = this.delegates */
3381 mono_mb_emit_ldarg (mb, 0);
3382 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3383 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3384 mono_mb_emit_stloc (mb, local_delegates);
3387 /* if (delegates == null) */
3388 mono_mb_emit_ldloc (mb, local_delegates);
3389 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3391 /* return target.<target_method|method_ptr> ( args .. ); */
3393 /* target = d.target; */
3394 mono_mb_emit_ldarg (mb, 0);
3395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3396 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3397 mono_mb_emit_stloc (mb, local_target);
3399 /*static methods with bound first arg can have null target and still be bound*/
3400 if (!static_method_with_first_arg_bound) {
3401 /* if target != null */
3402 mono_mb_emit_ldloc (mb, local_target);
3403 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3405 /* then call this->method_ptr nonstatic */
3408 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3410 mono_mb_emit_ldloc (mb, local_target);
3411 for (i = 0; i < sig->param_count; ++i)
3412 mono_mb_emit_ldarg (mb, i + 1);
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3415 mono_mb_emit_byte (mb, CEE_LDIND_I);
3416 mono_mb_emit_ldarg (mb, 0);
3417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3418 mono_mb_emit_byte (mb, CEE_LDIND_I);
3419 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3420 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3421 mono_mb_emit_byte (mb, CEE_RET);
3424 /* else [target == null] call this->method_ptr static */
3425 mono_mb_patch_branch (mb, pos0);
3429 if (!closed_over_null) {
3430 if (target_class->valuetype) {
3431 mono_mb_emit_ldarg (mb, 1);
3432 for (i = 1; i < sig->param_count; ++i)
3433 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_op (mb, CEE_CALL, target_method);
3436 mono_mb_emit_ldarg (mb, 1);
3437 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3438 for (i = 1; i < sig->param_count; ++i)
3439 mono_mb_emit_ldarg (mb, i + 1);
3440 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3443 mono_mb_emit_byte (mb, CEE_LDNULL);
3444 for (i = 0; i < sig->param_count; ++i)
3445 mono_mb_emit_ldarg (mb, i + 1);
3446 mono_mb_emit_op (mb, CEE_CALL, target_method);
3449 if (static_method_with_first_arg_bound) {
3450 mono_mb_emit_ldloc (mb, local_target);
3451 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3452 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3454 for (i = 0; i < sig->param_count; ++i)
3455 mono_mb_emit_ldarg (mb, i + 1);
3456 mono_mb_emit_ldarg (mb, 0);
3457 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3458 mono_mb_emit_byte (mb, CEE_LDIND_I);
3459 mono_mb_emit_ldarg (mb, 0);
3460 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3461 mono_mb_emit_byte (mb, CEE_LDIND_I);
3462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3463 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3466 mono_mb_emit_byte (mb, CEE_RET);
3468 /* else [delegates != null] */
3469 mono_mb_patch_branch (mb, pos2);
3471 /* len = delegates.Length; */
3472 mono_mb_emit_ldloc (mb, local_delegates);
3473 mono_mb_emit_byte (mb, CEE_LDLEN);
3474 mono_mb_emit_byte (mb, CEE_CONV_I4);
3475 mono_mb_emit_stloc (mb, local_len);
3478 mono_mb_emit_icon (mb, 0);
3479 mono_mb_emit_stloc (mb, local_i);
3481 pos1 = mono_mb_get_label (mb);
3483 /* d = delegates [i]; */
3484 mono_mb_emit_ldloc (mb, local_delegates);
3485 mono_mb_emit_ldloc (mb, local_i);
3486 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3487 mono_mb_emit_stloc (mb, local_d);
3489 /* res = d.Invoke ( args .. ); */
3490 mono_mb_emit_ldloc (mb, local_d);
3491 for (i = 0; i < sig->param_count; i++)
3492 mono_mb_emit_ldarg (mb, i + 1);
3494 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3497 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3498 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3501 mono_mb_emit_stloc (mb, local_res);
3504 mono_mb_emit_add_to_local (mb, local_i, 1);
3507 mono_mb_emit_ldloc (mb, local_i);
3508 mono_mb_emit_ldloc (mb, local_len);
3509 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3513 mono_mb_emit_ldloc (mb, local_res);
3514 mono_mb_emit_byte (mb, CEE_RET);
3516 mb->skip_visibility = 1;
3517 #endif /* DISABLE_JIT */
3519 info = mono_wrapper_info_create (mb, subtype);
3524 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3525 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3526 } else if (callvirt) {
3527 new_key = g_new0 (SignaturePointerPair, 1);
3530 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3534 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3538 /* mono_method_print_code (res); */
3544 * the returned method invokes all methods in a multicast delegate.
3547 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3549 gboolean callvirt = FALSE;
3550 gboolean static_method_with_first_arg_bound = FALSE;
3551 MonoMethod *target_method = NULL;
3552 MonoMethodSignature *sig;
3554 sig = mono_signature_no_pinvoke (method);
3556 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3558 target_method = del->method;
3561 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3562 static_method_with_first_arg_bound = TRUE;
3563 target_method = del->method;
3566 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3570 MonoMethodSignature *ctor_sig;
3571 MonoMethodSignature *sig;
3574 /* protected by the marshal lock, contains CtorSigPair pointers */
3575 static GSList *strsig_list = NULL;
3577 static MonoMethodSignature *
3578 lookup_string_ctor_signature (MonoMethodSignature *sig)
3580 MonoMethodSignature *callsig;
3584 mono_marshal_lock ();
3586 for (item = strsig_list; item; item = item->next) {
3587 cs = (CtorSigPair *)item->data;
3588 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3589 * because it is lock-free.
3591 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3596 mono_marshal_unlock ();
3600 static MonoMethodSignature *
3601 add_string_ctor_signature (MonoMethod *method)
3603 MonoMethodSignature *callsig;
3606 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3607 callsig->ret = &mono_defaults.string_class->byval_arg;
3608 cs = g_new (CtorSigPair, 1);
3610 cs->ctor_sig = mono_method_signature (method);
3612 mono_marshal_lock ();
3613 strsig_list = g_slist_prepend (strsig_list, cs);
3614 mono_marshal_unlock ();
3619 * mono_marshal_get_string_ctor_signature:
3621 * Return the modified signature used by string ctors (they return the newly created
3624 MonoMethodSignature*
3625 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3627 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3629 sig = add_string_ctor_signature (method);
3635 get_runtime_invoke_type (MonoType *t, gboolean ret)
3638 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3640 /* Can't share this with 'I' as that needs another indirection */
3641 return &mono_defaults.int_class->this_arg;
3644 if (MONO_TYPE_IS_REFERENCE (t))
3645 return &mono_defaults.object_class->byval_arg;
3648 /* The result needs to be boxed */
3653 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3656 return &mono_defaults.sbyte_class->byval_arg;
3658 return &mono_defaults.int16_class->byval_arg;
3660 return &mono_defaults.int32_class->byval_arg;
3663 return &mono_defaults.int64_class->byval_arg;
3664 case MONO_TYPE_BOOLEAN:
3665 return &mono_defaults.byte_class->byval_arg;
3666 case MONO_TYPE_CHAR:
3667 return &mono_defaults.uint16_class->byval_arg;
3669 return &mono_defaults.int_class->byval_arg;
3670 case MONO_TYPE_VALUETYPE:
3671 if (t->data.klass->enumtype) {
3672 t = mono_class_enum_basetype (t->data.klass);
3682 * mono_marshal_get_runtime_invoke_sig:
3684 * Return a common signature used for sharing runtime invoke wrappers.
3686 static MonoMethodSignature*
3687 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3689 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3692 res->generic_param_count = 0;
3693 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3694 for (i = 0; i < res->param_count; ++i)
3695 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3701 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3703 /* Can't share wrappers which return a vtype since it needs to be boxed */
3704 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))
3707 return mono_metadata_signature_equal (sig1, sig2);
3715 * Emit the call to the wrapper method from a runtime invoke wrapper.
3718 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3719 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3721 gboolean virtual_, gboolean need_direct_wrapper)
3723 static MonoString *string_dummy = NULL;
3725 int *tmp_nullable_locals;
3726 gboolean void_ret = FALSE;
3727 gboolean string_ctor = method && method->string_ctor;
3729 /* to make it work with our special string constructors */
3730 if (!string_dummy) {
3731 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3732 string_dummy = mono_string_new_wrapper ("dummy");
3736 g_assert (sig->hasthis);
3737 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3742 if (mono_gc_is_moving ()) {
3743 mono_mb_emit_ptr (mb, &string_dummy);
3744 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3746 mono_mb_emit_ptr (mb, string_dummy);
3749 mono_mb_emit_ldarg (mb, 0);
3753 tmp_nullable_locals = g_new0 (int, sig->param_count);
3755 for (i = 0; i < sig->param_count; i++) {
3756 MonoType *t = sig->params [i];
3759 mono_mb_emit_ldarg (mb, 1);
3761 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3762 mono_mb_emit_byte (mb, CEE_ADD);
3766 mono_mb_emit_byte (mb, CEE_LDIND_I);
3767 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3768 * So to make this work we unbox it to a local variablee and push a reference to that.
3770 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3771 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3773 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3774 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3775 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3780 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3781 type = sig->params [i]->type;
3785 case MONO_TYPE_BOOLEAN:
3789 case MONO_TYPE_CHAR:
3798 mono_mb_emit_byte (mb, CEE_LDIND_I);
3799 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3801 case MONO_TYPE_STRING:
3802 case MONO_TYPE_CLASS:
3803 case MONO_TYPE_ARRAY:
3805 case MONO_TYPE_SZARRAY:
3806 case MONO_TYPE_OBJECT:
3807 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3809 case MONO_TYPE_GENERICINST:
3810 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3811 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3816 case MONO_TYPE_VALUETYPE:
3817 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3818 type = mono_class_enum_basetype (t->data.klass)->type;
3821 mono_mb_emit_byte (mb, CEE_LDIND_I);
3822 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3823 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3824 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3825 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3827 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3831 g_assert_not_reached ();
3836 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3837 } else if (need_direct_wrapper) {
3838 mono_mb_emit_op (mb, CEE_CALL, method);
3840 mono_mb_emit_ldarg (mb, 3);
3841 mono_mb_emit_calli (mb, callsig);
3844 if (sig->ret->byref) {
3846 g_assert_not_reached ();
3849 switch (sig->ret->type) {
3850 case MONO_TYPE_VOID:
3854 case MONO_TYPE_BOOLEAN:
3855 case MONO_TYPE_CHAR:
3868 case MONO_TYPE_VALUETYPE:
3869 case MONO_TYPE_TYPEDBYREF:
3870 case MONO_TYPE_GENERICINST:
3871 /* box value types */
3872 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3874 case MONO_TYPE_STRING:
3875 case MONO_TYPE_CLASS:
3876 case MONO_TYPE_ARRAY:
3877 case MONO_TYPE_SZARRAY:
3878 case MONO_TYPE_OBJECT:
3882 /* The result is an IntPtr */
3883 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3886 g_assert_not_reached ();
3890 mono_mb_emit_stloc (mb, loc_res);
3892 /* Convert back nullable-byref arguments */
3893 for (i = 0; i < sig->param_count; i++) {
3894 MonoType *t = sig->params [i];
3897 * Box the result and put it back into the array, the caller will have
3898 * to obtain it from there.
3900 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3901 mono_mb_emit_ldarg (mb, 1);
3902 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3903 mono_mb_emit_byte (mb, CEE_ADD);
3905 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3906 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3908 mono_mb_emit_byte (mb, CEE_STIND_REF);
3912 g_free (tmp_nullable_locals);
3916 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3917 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3918 gboolean virtual_, gboolean need_direct_wrapper)
3921 MonoExceptionClause *clause;
3922 int loc_res, loc_exc;
3924 /* The wrapper looks like this:
3930 * } catch (Exception e) {
3938 /* allocate local 0 (object) tmp */
3939 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3940 /* allocate local 1 (object) exc */
3941 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3943 /* *exc is assumed to be initialized to NULL by the caller */
3945 mono_mb_emit_byte (mb, CEE_LDARG_2);
3946 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3951 labels [1] = mono_mb_get_label (mb);
3952 emit_thread_force_interrupt_checkpoint (mb);
3953 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3955 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3957 /* Add a try clause around the call */
3958 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3959 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3960 clause->data.catch_class = mono_defaults.exception_class;
3961 clause->try_offset = labels [1];
3962 clause->try_len = mono_mb_get_label (mb) - labels [1];
3964 clause->handler_offset = mono_mb_get_label (mb);
3967 mono_mb_emit_stloc (mb, loc_exc);
3968 mono_mb_emit_byte (mb, CEE_LDARG_2);
3969 mono_mb_emit_ldloc (mb, loc_exc);
3970 mono_mb_emit_byte (mb, CEE_STIND_REF);
3972 mono_mb_emit_branch (mb, CEE_LEAVE);
3974 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3976 mono_mb_set_clauses (mb, 1, clause);
3978 mono_mb_patch_branch (mb, labels [2]);
3979 mono_mb_emit_ldloc (mb, loc_res);
3980 mono_mb_emit_byte (mb, CEE_RET);
3985 mono_mb_patch_branch (mb, labels [0]);
3986 emit_thread_force_interrupt_checkpoint (mb);
3987 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3989 mono_mb_emit_ldloc (mb, 0);
3990 mono_mb_emit_byte (mb, CEE_RET);
3995 * generates IL code for the runtime invoke function
3996 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3998 * we also catch exceptions if exc != null
3999 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4000 * it means that the compiled code for METHOD does not have to be looked up
4001 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4002 * its METHOD argument.
4005 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4007 MonoMethodSignature *sig, *csig, *callsig;
4008 MonoMethodBuilder *mb;
4009 GHashTable *cache = NULL;
4010 MonoClass *target_klass;
4011 MonoMethod *res = NULL;
4012 static MonoMethodSignature *cctor_signature = NULL;
4013 static MonoMethodSignature *finalize_signature = NULL;
4015 const char *param_names [16];
4016 gboolean need_direct_wrapper = FALSE;
4021 if (!cctor_signature) {
4022 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4023 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4025 if (!finalize_signature) {
4026 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4027 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4028 finalize_signature->hasthis = 1;
4032 need_direct_wrapper = TRUE;
4035 * Use a separate cache indexed by methods to speed things up and to avoid the
4036 * boundless mempool growth caused by the signature_dup stuff below.
4039 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4041 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4043 res = mono_marshal_find_in_cache (cache, method);
4047 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4048 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4050 * Array Get/Set/Address methods. The JIT implements them using inline code
4051 * so we need to create an invoke wrapper which calls the method directly.
4053 need_direct_wrapper = TRUE;
4056 if (method->string_ctor) {
4057 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4059 callsig = add_string_ctor_signature (method);
4060 /* Can't share this as we push a string as this */
4061 need_direct_wrapper = TRUE;
4063 if (method_is_dynamic (method))
4064 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4066 callsig = mono_method_signature (method);
4069 sig = mono_method_signature (method);
4071 target_klass = get_wrapper_target_class (method->klass->image);
4073 /* Try to share wrappers for non-corlib methods with simple signatures */
4074 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4075 callsig = cctor_signature;
4076 target_klass = mono_defaults.object_class;
4077 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4078 callsig = finalize_signature;
4079 target_klass = mono_defaults.object_class;
4082 if (need_direct_wrapper) {
4083 /* Already searched at the start */
4085 MonoMethodSignature *tmp_sig;
4087 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4088 GHashTable **cache_table = NULL;
4090 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4091 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4093 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4095 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4096 (GCompareFunc)runtime_invoke_signature_equal);
4098 /* from mono_marshal_find_in_cache */
4099 mono_marshal_lock ();
4100 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4101 mono_marshal_unlock ();
4108 /* Make a copy of the signature from the image mempool */
4110 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4114 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4116 csig->ret = &mono_defaults.object_class->byval_arg;
4117 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4118 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4120 csig->params [0] = &mono_defaults.object_class->byval_arg;
4121 csig->params [1] = &mono_defaults.int_class->byval_arg;
4122 csig->params [2] = &mono_defaults.int_class->byval_arg;
4123 csig->params [3] = &mono_defaults.int_class->byval_arg;
4126 /* This is called from runtime code so it has to be cdecl */
4127 csig->call_convention = MONO_CALL_C;
4130 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4131 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4135 param_names [0] = "this";
4136 param_names [1] = "params";
4137 param_names [2] = "exc";
4138 param_names [3] = "method";
4139 mono_mb_set_param_names (mb, param_names);
4141 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4144 if (need_direct_wrapper) {
4146 mb->skip_visibility = 1;
4148 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4149 info->d.runtime_invoke.method = method;
4150 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4152 /* taken from mono_mb_create_and_cache */
4153 mono_marshal_lock ();
4154 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4155 mono_marshal_unlock ();
4157 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4158 info->d.runtime_invoke.sig = callsig;
4160 /* Somebody may have created it before us */
4163 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4165 mono_marshal_lock ();
4166 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4168 GHashTable *direct_cache;
4170 g_hash_table_insert (cache, callsig, res);
4171 /* Can't insert it into wrapper_hash since the key is a signature */
4172 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4174 g_hash_table_insert (direct_cache, method, res);
4176 mono_free_method (newm);
4178 mono_marshal_unlock ();
4181 /* end mono_mb_create_and_cache */
4190 * mono_marshal_get_runtime_invoke_dynamic:
4192 * Return a method which can be used to invoke managed methods from native code
4194 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4195 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4196 * ARGS should point to an architecture specific structure containing
4197 * the arguments and space for the return value.
4198 * The other arguments are the same as for runtime_invoke (), except that
4199 * ARGS should contain the this argument too.
4200 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4201 * is only one copy of it, which is useful in full-aot.
4202 * The wrapper info for the wrapper is a WrapperInfo structure.
4205 mono_marshal_get_runtime_invoke_dynamic (void)
4207 static MonoMethod *method;
4208 MonoMethodSignature *csig;
4209 MonoExceptionClause *clause;
4210 MonoMethodBuilder *mb;
4218 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4220 csig->ret = &mono_defaults.void_class->byval_arg;
4221 csig->params [0] = &mono_defaults.int_class->byval_arg;
4222 csig->params [1] = &mono_defaults.int_class->byval_arg;
4223 csig->params [2] = &mono_defaults.int_class->byval_arg;
4224 csig->params [3] = &mono_defaults.int_class->byval_arg;
4226 name = g_strdup ("runtime_invoke_dynamic");
4227 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4231 /* allocate local 0 (object) tmp */
4232 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4233 /* allocate local 1 (object) exc */
4234 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4236 /* cond set *exc to null */
4237 mono_mb_emit_byte (mb, CEE_LDARG_1);
4238 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4239 mono_mb_emit_byte (mb, 3);
4240 mono_mb_emit_byte (mb, CEE_LDARG_1);
4241 mono_mb_emit_byte (mb, CEE_LDNULL);
4242 mono_mb_emit_byte (mb, CEE_STIND_REF);
4244 emit_thread_force_interrupt_checkpoint (mb);
4246 mono_mb_emit_byte (mb, CEE_LDARG_0);
4247 mono_mb_emit_byte (mb, CEE_LDARG_2);
4248 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4249 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4251 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4253 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4254 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4255 clause->try_len = mono_mb_get_label (mb);
4258 clause->data.filter_offset = mono_mb_get_label (mb);
4260 mono_mb_emit_byte (mb, CEE_POP);
4261 mono_mb_emit_byte (mb, CEE_LDARG_1);
4262 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4263 mono_mb_emit_byte (mb, CEE_PREFIX1);
4264 mono_mb_emit_byte (mb, CEE_CGT_UN);
4265 mono_mb_emit_byte (mb, CEE_PREFIX1);
4266 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4268 clause->handler_offset = mono_mb_get_label (mb);
4271 /* store exception */
4272 mono_mb_emit_stloc (mb, 1);
4274 mono_mb_emit_byte (mb, CEE_LDARG_1);
4275 mono_mb_emit_ldloc (mb, 1);
4276 mono_mb_emit_byte (mb, CEE_STIND_REF);
4278 mono_mb_emit_byte (mb, CEE_LDNULL);
4279 mono_mb_emit_stloc (mb, 0);
4281 /* Check for the abort exception */
4282 mono_mb_emit_ldloc (mb, 1);
4283 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4284 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4286 /* Delay the abort exception */
4287 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4289 mono_mb_patch_short_branch (mb, posna);
4290 mono_mb_emit_branch (mb, CEE_LEAVE);
4292 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4294 mono_mb_set_clauses (mb, 1, clause);
4297 mono_mb_patch_branch (mb, pos);
4298 //mono_mb_emit_ldloc (mb, 0);
4299 mono_mb_emit_byte (mb, CEE_RET);
4300 #endif /* DISABLE_JIT */
4302 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4304 mono_marshal_lock ();
4305 /* double-checked locking */
4307 method = mono_mb_create (mb, csig, 16, info);
4309 mono_marshal_unlock ();
4317 * mono_marshal_get_runtime_invoke_for_sig:
4319 * Return a runtime invoke wrapper for a given signature.
4322 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4324 MonoMethodSignature *csig, *callsig;
4325 MonoMethodBuilder *mb;
4327 GHashTable *cache = NULL;
4328 GHashTable **cache_table = NULL;
4329 MonoMethod *res = NULL;
4331 const char *param_names [16];
4334 /* A simplified version of mono_marshal_get_runtime_invoke */
4336 image = mono_defaults.corlib;
4338 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4340 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4342 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4343 (GCompareFunc)runtime_invoke_signature_equal);
4345 /* from mono_marshal_find_in_cache */
4346 mono_marshal_lock ();
4347 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4348 mono_marshal_unlock ();
4355 /* Make a copy of the signature from the image mempool */
4356 callsig = mono_metadata_signature_dup_full (image, callsig);
4358 csig = mono_metadata_signature_alloc (image, 4);
4359 csig->ret = &mono_defaults.object_class->byval_arg;
4360 csig->params [0] = &mono_defaults.object_class->byval_arg;
4361 csig->params [1] = &mono_defaults.int_class->byval_arg;
4362 csig->params [2] = &mono_defaults.int_class->byval_arg;
4363 csig->params [3] = &mono_defaults.int_class->byval_arg;
4366 /* This is called from runtime code so it has to be cdecl */
4367 csig->call_convention = MONO_CALL_C;
4370 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4371 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4375 param_names [0] = "this";
4376 param_names [1] = "params";
4377 param_names [2] = "exc";
4378 param_names [3] = "method";
4379 mono_mb_set_param_names (mb, param_names);
4381 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4384 /* taken from mono_mb_create_and_cache */
4385 mono_marshal_lock ();
4386 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4387 mono_marshal_unlock ();
4389 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4390 info->d.runtime_invoke.sig = callsig;
4392 /* Somebody may have created it before us */
4395 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4397 mono_marshal_lock ();
4398 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4401 g_hash_table_insert (cache, callsig, res);
4403 mono_free_method (newm);
4405 mono_marshal_unlock ();
4408 /* end mono_mb_create_and_cache */
4417 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4419 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4420 klass->name_space, klass->name);
4422 mono_mb_emit_exception_marshal_directive (mb, msg);
4427 * generates IL code for the icall wrapper (the generated method
4428 * calls the unmanaged code in func)
4429 * The wrapper info for the wrapper is a WrapperInfo structure.
4432 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4434 MonoMethodSignature *csig, *csig2;
4435 MonoMethodBuilder *mb;
4440 g_assert (sig->pinvoke);
4442 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4444 mb->method->save_lmf = 1;
4446 /* Add an explicit this argument */
4448 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4450 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4454 mono_mb_emit_byte (mb, CEE_LDARG_0);
4456 for (i = 0; i < sig->param_count; i++)
4457 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4459 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4460 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4461 mono_mb_emit_calli (mb, csig2);
4462 if (check_exceptions)
4463 emit_thread_interrupt_checkpoint (mb);
4464 mono_mb_emit_byte (mb, CEE_RET);
4467 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4469 if (csig->call_convention == MONO_CALL_VARARG)
4470 csig->call_convention = 0;
4472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4473 info->d.icall.func = (gpointer)func;
4474 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4481 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4482 MonoMarshalSpec *spec,
4483 int conv_arg, MonoType **conv_arg_type,
4484 MarshalAction action)
4487 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4488 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4494 static MonoClass *ICustomMarshaler = NULL;
4495 static MonoMethod *cleanup_native, *cleanup_managed;
4496 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4497 MonoMethod *get_instance = NULL;
4498 MonoMethodBuilder *mb = m->mb;
4499 char *exception_msg = NULL;
4503 if (!ICustomMarshaler) {
4504 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4506 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4507 goto handle_exception;
4510 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4511 g_assert (cleanup_native);
4512 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4513 g_assert (cleanup_managed);
4514 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4515 g_assert (marshal_managed_to_native);
4516 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4517 g_assert (marshal_native_to_managed);
4519 mono_memory_barrier ();
4520 ICustomMarshaler = klass;
4523 if (spec->data.custom_data.image)
4524 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4526 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4527 g_assert (mtype != NULL);
4528 mono_error_assert_ok (&error);
4529 mklass = mono_class_from_mono_type (mtype);
4530 g_assert (mklass != NULL);
4532 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4533 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4535 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4537 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4538 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4539 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4540 (get_sig->params [0]->type != MONO_TYPE_STRING))
4541 get_instance = NULL;
4545 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);
4548 /* Throw exception and emit compensation code if neccesary */
4549 if (exception_msg) {
4551 case MARSHAL_ACTION_CONV_IN:
4552 case MARSHAL_ACTION_CONV_RESULT:
4553 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4554 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4555 mono_mb_emit_byte (mb, CEE_POP);
4557 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4558 g_free (exception_msg);
4561 case MARSHAL_ACTION_PUSH:
4562 mono_mb_emit_byte (mb, CEE_LDNULL);
4570 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4571 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4574 case MARSHAL_ACTION_CONV_IN:
4576 case MONO_TYPE_CLASS:
4577 case MONO_TYPE_OBJECT:
4578 case MONO_TYPE_STRING:
4579 case MONO_TYPE_ARRAY:
4580 case MONO_TYPE_SZARRAY:
4581 case MONO_TYPE_VALUETYPE:
4585 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4586 g_assert_not_reached ();
4590 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4592 mono_mb_emit_byte (mb, CEE_LDNULL);
4593 mono_mb_emit_stloc (mb, conv_arg);
4595 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4598 /* Minic MS.NET behavior */
4599 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4602 /* Check for null */
4603 mono_mb_emit_ldarg (mb, argnum);
4605 mono_mb_emit_byte (mb, CEE_LDIND_I);
4606 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4608 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4610 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4612 mono_mb_emit_ldarg (mb, argnum);
4614 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4616 if (t->type == MONO_TYPE_VALUETYPE) {
4618 * Since we can't determine the type of the argument, we
4619 * will assume the unmanaged function takes a pointer.
4621 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4623 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4626 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4627 mono_mb_emit_stloc (mb, conv_arg);
4629 mono_mb_patch_branch (mb, pos2);
4632 case MARSHAL_ACTION_CONV_OUT:
4633 /* Check for null */
4634 mono_mb_emit_ldloc (mb, conv_arg);
4635 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4638 mono_mb_emit_ldarg (mb, argnum);
4640 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4642 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4644 mono_mb_emit_ldloc (mb, conv_arg);
4645 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4646 mono_mb_emit_byte (mb, CEE_STIND_REF);
4647 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4648 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4650 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4652 mono_mb_emit_ldloc (mb, conv_arg);
4653 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4655 /* We have nowhere to store the result */
4656 mono_mb_emit_byte (mb, CEE_POP);
4659 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4661 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4663 mono_mb_emit_ldloc (mb, conv_arg);
4665 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4667 mono_mb_patch_branch (mb, pos2);
4670 case MARSHAL_ACTION_PUSH:
4672 mono_mb_emit_ldloc_addr (mb, conv_arg);
4674 mono_mb_emit_ldloc (mb, conv_arg);
4677 case MARSHAL_ACTION_CONV_RESULT:
4678 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4680 mono_mb_emit_stloc (mb, 3);
4682 mono_mb_emit_ldloc (mb, 3);
4683 mono_mb_emit_stloc (mb, loc1);
4685 /* Check for null */
4686 mono_mb_emit_ldloc (mb, 3);
4687 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4689 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4691 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4692 mono_mb_emit_byte (mb, CEE_DUP);
4694 mono_mb_emit_ldloc (mb, 3);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4696 mono_mb_emit_stloc (mb, 3);
4698 mono_mb_emit_ldloc (mb, loc1);
4699 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4701 mono_mb_patch_branch (mb, pos2);
4704 case MARSHAL_ACTION_MANAGED_CONV_IN:
4705 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4707 mono_mb_emit_byte (mb, CEE_LDNULL);
4708 mono_mb_emit_stloc (mb, conv_arg);
4710 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4713 /* Check for null */
4714 mono_mb_emit_ldarg (mb, argnum);
4716 mono_mb_emit_byte (mb, CEE_LDIND_I);
4717 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4719 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4720 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4722 mono_mb_emit_ldarg (mb, argnum);
4724 mono_mb_emit_byte (mb, CEE_LDIND_I);
4726 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4727 mono_mb_emit_stloc (mb, conv_arg);
4729 mono_mb_patch_branch (mb, pos2);
4732 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4733 g_assert (!t->byref);
4735 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4737 mono_mb_emit_stloc (mb, 3);
4739 mono_mb_emit_ldloc (mb, 3);
4740 mono_mb_emit_stloc (mb, loc1);
4742 /* Check for null */
4743 mono_mb_emit_ldloc (mb, 3);
4744 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4746 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4747 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4748 mono_mb_emit_byte (mb, CEE_DUP);
4750 mono_mb_emit_ldloc (mb, 3);
4751 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4752 mono_mb_emit_stloc (mb, 3);
4754 mono_mb_emit_ldloc (mb, loc1);
4755 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4757 mono_mb_patch_branch (mb, pos2);
4760 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4762 /* Check for null */
4763 mono_mb_emit_ldloc (mb, conv_arg);
4764 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4767 mono_mb_emit_ldarg (mb, argnum);
4769 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4771 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4773 mono_mb_emit_ldloc (mb, conv_arg);
4774 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4775 mono_mb_emit_byte (mb, CEE_STIND_I);
4778 /* Call CleanUpManagedData */
4779 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4781 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4783 mono_mb_emit_ldloc (mb, conv_arg);
4784 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4786 mono_mb_patch_branch (mb, pos2);
4790 g_assert_not_reached ();
4798 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4799 MonoMarshalSpec *spec,
4800 int conv_arg, MonoType **conv_arg_type,
4801 MarshalAction action)
4804 MonoMethodBuilder *mb = m->mb;
4807 case MARSHAL_ACTION_CONV_IN: {
4808 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4810 g_assert (t->type == MONO_TYPE_OBJECT);
4811 g_assert (!t->byref);
4813 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4814 mono_mb_emit_ldarg (mb, argnum);
4815 mono_mb_emit_icon (mb, encoding);
4816 mono_mb_emit_icon (mb, t->attrs);
4817 mono_mb_emit_icall (mb, mono_marshal_asany);
4818 mono_mb_emit_stloc (mb, conv_arg);
4822 case MARSHAL_ACTION_PUSH:
4823 mono_mb_emit_ldloc (mb, conv_arg);
4826 case MARSHAL_ACTION_CONV_OUT: {
4827 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4829 mono_mb_emit_ldarg (mb, argnum);
4830 mono_mb_emit_ldloc (mb, conv_arg);
4831 mono_mb_emit_icon (mb, encoding);
4832 mono_mb_emit_icon (mb, t->attrs);
4833 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4838 g_assert_not_reached ();
4845 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4846 MonoMarshalSpec *spec,
4847 int conv_arg, MonoType **conv_arg_type,
4848 MarshalAction action)
4851 MonoMethodBuilder *mb = m->mb;
4852 MonoClass *klass, *date_time_class;
4855 klass = mono_class_from_mono_type (t);
4857 date_time_class = mono_class_get_date_time_class ();
4860 case MARSHAL_ACTION_CONV_IN:
4861 if (klass == date_time_class) {
4862 /* Convert it to an OLE DATE type */
4863 static MonoMethod *to_oadate;
4866 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4867 g_assert (to_oadate);
4869 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4872 mono_mb_emit_ldarg (mb, argnum);
4873 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4876 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4878 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4880 mono_mb_emit_ldarg_addr (mb, argnum);
4881 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4882 mono_mb_emit_stloc (mb, conv_arg);
4886 mono_mb_patch_branch (mb, pos);
4890 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4891 klass->blittable || klass->enumtype)
4894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4896 /* store the address of the source into local variable 0 */
4898 mono_mb_emit_ldarg (mb, argnum);
4900 mono_mb_emit_ldarg_addr (mb, argnum);
4902 mono_mb_emit_stloc (mb, 0);
4904 /* allocate space for the native struct and
4905 * store the address into local variable 1 (dest) */
4906 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4907 mono_mb_emit_byte (mb, CEE_PREFIX1);
4908 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4909 mono_mb_emit_stloc (mb, conv_arg);
4912 mono_mb_emit_ldloc (mb, 0);
4913 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4916 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4918 mono_mb_emit_ldloc (mb, conv_arg);
4919 mono_mb_emit_stloc (mb, 1);
4921 /* emit valuetype conversion code */
4922 emit_struct_conv (mb, klass, FALSE);
4926 mono_mb_patch_branch (mb, pos);
4929 case MARSHAL_ACTION_PUSH:
4930 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4932 g_assert (!t->byref);
4934 /* Have to change the signature since the vtype is passed byref */
4935 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4937 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4938 klass->blittable || klass->enumtype)
4939 mono_mb_emit_ldarg_addr (mb, argnum);
4941 mono_mb_emit_ldloc (mb, conv_arg);
4945 if (klass == date_time_class) {
4947 mono_mb_emit_ldloc_addr (mb, conv_arg);
4949 mono_mb_emit_ldloc (mb, conv_arg);
4953 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4954 klass->blittable || klass->enumtype) {
4955 mono_mb_emit_ldarg (mb, argnum);
4958 mono_mb_emit_ldloc (mb, conv_arg);
4960 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4961 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4965 case MARSHAL_ACTION_CONV_OUT:
4966 if (klass == date_time_class) {
4967 /* Convert from an OLE DATE type */
4968 static MonoMethod *from_oadate;
4973 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4975 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4976 g_assert (from_oadate);
4978 mono_mb_emit_ldarg (mb, argnum);
4979 mono_mb_emit_ldloc (mb, conv_arg);
4980 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4981 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4986 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4987 klass->blittable || klass->enumtype)
4991 /* dst = argument */
4992 mono_mb_emit_ldarg (mb, argnum);
4993 mono_mb_emit_stloc (mb, 1);
4995 mono_mb_emit_ldloc (mb, 1);
4996 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4998 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4999 /* src = tmp_locals [i] */
5000 mono_mb_emit_ldloc (mb, conv_arg);
5001 mono_mb_emit_stloc (mb, 0);
5003 /* emit valuetype conversion code */
5004 emit_struct_conv (mb, klass, TRUE);
5008 emit_struct_free (mb, klass, conv_arg);
5011 mono_mb_patch_branch (mb, pos);
5014 case MARSHAL_ACTION_CONV_RESULT:
5015 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5017 mono_mb_emit_stloc (mb, 3);
5021 /* load pointer to returned value type */
5022 g_assert (m->vtaddr_var);
5023 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5024 /* store the address of the source into local variable 0 */
5025 mono_mb_emit_stloc (mb, 0);
5027 mono_mb_emit_ldloc_addr (mb, 3);
5028 mono_mb_emit_stloc (mb, 1);
5030 /* emit valuetype conversion code */
5031 emit_struct_conv (mb, klass, TRUE);
5034 case MARSHAL_ACTION_MANAGED_CONV_IN:
5035 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5036 klass->blittable || klass->enumtype) {
5041 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5043 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5047 mono_mb_emit_ldarg (mb, argnum);
5049 mono_mb_emit_ldarg_addr (mb, argnum);
5050 mono_mb_emit_stloc (mb, 0);
5053 mono_mb_emit_ldloc (mb, 0);
5054 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5057 mono_mb_emit_ldloc_addr (mb, conv_arg);
5058 mono_mb_emit_stloc (mb, 1);
5060 /* emit valuetype conversion code */
5061 emit_struct_conv (mb, klass, TRUE);
5064 mono_mb_patch_branch (mb, pos);
5067 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5068 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5069 klass->blittable || klass->enumtype) {
5073 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5076 /* Check for null */
5077 mono_mb_emit_ldarg (mb, argnum);
5078 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5081 mono_mb_emit_ldloc_addr (mb, conv_arg);
5082 mono_mb_emit_stloc (mb, 0);
5085 mono_mb_emit_ldarg (mb, argnum);
5086 mono_mb_emit_stloc (mb, 1);
5088 /* emit valuetype conversion code */
5089 emit_struct_conv (mb, klass, FALSE);
5091 mono_mb_patch_branch (mb, pos2);
5094 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5095 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5096 klass->blittable || klass->enumtype) {
5097 mono_mb_emit_stloc (mb, 3);
5102 /* load pointer to returned value type */
5103 g_assert (m->vtaddr_var);
5104 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5106 /* store the address of the source into local variable 0 */
5107 mono_mb_emit_stloc (mb, 0);
5108 /* allocate space for the native struct and
5109 * store the address into dst_ptr */
5110 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5111 m->retobj_class = klass;
5112 g_assert (m->retobj_var);
5113 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5114 mono_mb_emit_byte (mb, CEE_CONV_I);
5115 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5116 mono_mb_emit_stloc (mb, 1);
5117 mono_mb_emit_ldloc (mb, 1);
5118 mono_mb_emit_stloc (mb, m->retobj_var);
5120 /* emit valuetype conversion code */
5121 emit_struct_conv (mb, klass, FALSE);
5125 g_assert_not_reached ();
5132 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5133 MonoMarshalSpec *spec,
5134 int conv_arg, MonoType **conv_arg_type,
5135 MarshalAction action)
5139 case MARSHAL_ACTION_CONV_IN:
5140 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5142 case MARSHAL_ACTION_MANAGED_CONV_IN:
5143 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5147 MonoMethodBuilder *mb = m->mb;
5148 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5149 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5153 case MARSHAL_ACTION_CONV_IN:
5154 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5155 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5158 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5161 mono_mb_emit_ldarg (mb, argnum);
5162 mono_mb_emit_byte (mb, CEE_LDIND_I);
5164 mono_mb_emit_ldarg (mb, argnum);
5167 if (conv == MONO_MARSHAL_CONV_INVALID) {
5168 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5169 mono_mb_emit_exception_marshal_directive (mb, msg);
5171 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5173 mono_mb_emit_stloc (mb, conv_arg);
5177 case MARSHAL_ACTION_CONV_OUT:
5178 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5179 if (conv == MONO_MARSHAL_CONV_INVALID) {
5180 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5181 mono_mb_emit_exception_marshal_directive (mb, msg);
5185 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5186 static MonoMethod *m;
5189 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5194 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5195 mono_mb_emit_exception_marshal_directive (mb, msg);
5200 * Have to allocate a new string with the same length as the original, and
5201 * copy the contents of the buffer pointed to by CONV_ARG into it.
5203 g_assert (t->byref);
5204 mono_mb_emit_ldarg (mb, argnum);
5205 mono_mb_emit_ldloc (mb, conv_arg);
5206 mono_mb_emit_ldarg (mb, argnum);
5207 mono_mb_emit_byte (mb, CEE_LDIND_I);
5208 mono_mb_emit_managed_call (mb, m, NULL);
5209 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5210 mono_mb_emit_byte (mb, CEE_STIND_REF);
5211 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5213 mono_mb_emit_ldarg (mb, argnum);
5214 mono_mb_emit_ldloc (mb, conv_arg);
5215 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5216 mono_mb_emit_byte (mb, stind_op);
5221 mono_mb_emit_ldloc (mb, conv_arg);
5222 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5223 mono_mb_emit_icall (mb, mono_free_bstr);
5225 mono_mb_emit_icall (mb, mono_marshal_free);
5229 case MARSHAL_ACTION_PUSH:
5230 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5231 mono_mb_emit_ldloc_addr (mb, conv_arg);
5233 mono_mb_emit_ldloc (mb, conv_arg);
5236 case MARSHAL_ACTION_CONV_RESULT:
5237 mono_mb_emit_stloc (mb, 0);
5239 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5240 if (conv == MONO_MARSHAL_CONV_INVALID) {
5241 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5242 mono_mb_emit_exception_marshal_directive (mb, msg);
5246 mono_mb_emit_ldloc (mb, 0);
5247 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5248 mono_mb_emit_stloc (mb, 3);
5250 /* free the string */
5251 mono_mb_emit_ldloc (mb, 0);
5252 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5253 mono_mb_emit_icall (mb, mono_free_bstr);
5255 mono_mb_emit_icall (mb, mono_marshal_free);
5258 case MARSHAL_ACTION_MANAGED_CONV_IN:
5259 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5261 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5264 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5268 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5269 if (conv == MONO_MARSHAL_CONV_INVALID) {
5270 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5271 mono_mb_emit_exception_marshal_directive (mb, msg);
5275 mono_mb_emit_ldarg (mb, argnum);
5277 mono_mb_emit_byte (mb, CEE_LDIND_I);
5278 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5279 mono_mb_emit_stloc (mb, conv_arg);
5282 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_ldloc (mb, conv_arg);
5288 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5289 mono_mb_emit_byte (mb, stind_op);
5294 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5295 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5296 /* We need to make a copy so the caller is able to free it */
5297 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5299 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5300 mono_mb_emit_stloc (mb, 3);
5304 g_assert_not_reached ();
5312 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5313 MonoMarshalSpec *spec, int conv_arg,
5314 MonoType **conv_arg_type, MarshalAction action)
5317 if (action == MARSHAL_ACTION_CONV_IN)
5318 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5320 MonoMethodBuilder *mb = m->mb;
5323 case MARSHAL_ACTION_CONV_IN: {
5324 MonoType *intptr_type;
5325 int dar_release_slot, pos;
5327 intptr_type = &mono_defaults.int_class->byval_arg;
5328 conv_arg = mono_mb_add_local (mb, intptr_type);
5329 *conv_arg_type = intptr_type;
5331 if (!sh_dangerous_add_ref)
5332 init_safe_handle ();
5334 mono_mb_emit_ldarg (mb, argnum);
5335 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5336 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5338 mono_mb_patch_branch (mb, pos);
5341 * My tests in show that ref SafeHandles are not really
5342 * passed as ref objects. Instead a NULL is passed as the
5345 mono_mb_emit_icon (mb, 0);
5346 mono_mb_emit_stloc (mb, conv_arg);
5350 /* Create local to hold the ref parameter to DangerousAddRef */
5351 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5353 /* set release = false; */
5354 mono_mb_emit_icon (mb, 0);
5355 mono_mb_emit_stloc (mb, dar_release_slot);
5357 /* safehandle.DangerousAddRef (ref release) */
5358 mono_mb_emit_ldarg (mb, argnum);
5359 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5360 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5362 /* Pull the handle field from SafeHandle */
5363 mono_mb_emit_ldarg (mb, argnum);
5364 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5365 mono_mb_emit_byte (mb, CEE_LDIND_I);
5366 mono_mb_emit_stloc (mb, conv_arg);
5371 case MARSHAL_ACTION_PUSH:
5373 mono_mb_emit_ldloc_addr (mb, conv_arg);
5375 mono_mb_emit_ldloc (mb, conv_arg);
5378 case MARSHAL_ACTION_CONV_OUT: {
5379 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5380 int dar_release_slot = conv_arg + 1;
5383 if (!sh_dangerous_release)
5384 init_safe_handle ();
5390 * My tests indicate that ref SafeHandles parameters are not actually
5391 * passed by ref, but instead a new Handle is created regardless of
5392 * whether a change happens in the unmanaged side.
5394 * Also, the Handle is created before calling into unmanaged code,
5395 * but we do not support that mechanism (getting to the original
5396 * handle) and it makes no difference where we create this
5398 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5400 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5403 /* refval = new SafeHandleDerived ()*/
5404 mono_mb_emit_ldarg (mb, argnum);
5405 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5406 mono_mb_emit_byte (mb, CEE_STIND_REF);
5408 /* refval.handle = returned_handle */
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5411 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5412 mono_mb_emit_ldloc (mb, conv_arg);
5413 mono_mb_emit_byte (mb, CEE_STIND_I);
5415 mono_mb_emit_ldloc (mb, dar_release_slot);
5416 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5417 mono_mb_emit_ldarg (mb, argnum);
5418 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5419 mono_mb_patch_branch (mb, label_next);
5424 case MARSHAL_ACTION_CONV_RESULT: {
5425 MonoMethod *ctor = NULL;
5426 int intptr_handle_slot;
5428 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5429 mono_mb_emit_byte (mb, CEE_POP);
5430 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5434 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5436 mono_mb_emit_byte (mb, CEE_POP);
5437 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5440 /* Store the IntPtr results into a local */
5441 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5442 mono_mb_emit_stloc (mb, intptr_handle_slot);
5444 /* Create return value */
5445 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5446 mono_mb_emit_stloc (mb, 3);
5448 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5449 mono_mb_emit_ldloc (mb, 3);
5450 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5451 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5452 mono_mb_emit_byte (mb, CEE_STIND_I);
5456 case MARSHAL_ACTION_MANAGED_CONV_IN:
5457 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5460 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5461 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5464 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5465 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5468 printf ("Unhandled case for MarshalAction: %d\n", action);
5476 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5477 MonoMarshalSpec *spec, int conv_arg,
5478 MonoType **conv_arg_type, MarshalAction action)
5481 if (action == MARSHAL_ACTION_CONV_IN)
5482 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5484 MonoMethodBuilder *mb = m->mb;
5487 case MARSHAL_ACTION_CONV_IN: {
5488 MonoType *intptr_type;
5490 intptr_type = &mono_defaults.int_class->byval_arg;
5491 conv_arg = mono_mb_add_local (mb, intptr_type);
5492 *conv_arg_type = intptr_type;
5495 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5496 mono_mb_emit_exception_marshal_directive (mb, msg);
5499 mono_mb_emit_ldarg_addr (mb, argnum);
5500 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5501 mono_mb_emit_byte (mb, CEE_ADD);
5502 mono_mb_emit_byte (mb, CEE_LDIND_I);
5503 mono_mb_emit_stloc (mb, conv_arg);
5507 case MARSHAL_ACTION_PUSH:
5508 mono_mb_emit_ldloc (mb, conv_arg);
5511 case MARSHAL_ACTION_CONV_OUT: {
5512 /* no resource release required */
5516 case MARSHAL_ACTION_CONV_RESULT: {
5517 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5518 mono_mb_emit_exception_marshal_directive (mb, msg);
5522 case MARSHAL_ACTION_MANAGED_CONV_IN:
5523 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5526 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5527 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5530 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5531 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5534 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5542 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5543 MonoMarshalSpec *spec,
5544 int conv_arg, MonoType **conv_arg_type,
5545 MarshalAction action)
5548 if (action == MARSHAL_ACTION_CONV_IN)
5549 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5551 MonoMethodBuilder *mb = m->mb;
5552 MonoClass *klass = mono_class_from_mono_type (t);
5556 case MARSHAL_ACTION_CONV_IN:
5557 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5558 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5560 m->orig_conv_args [argnum] = 0;
5562 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5563 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5564 mono_mb_emit_exception_marshal_directive (mb, msg);
5568 if (klass->delegate) {
5570 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5571 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5572 mono_mb_emit_exception_marshal_directive (mb, msg);
5574 mono_mb_emit_byte (mb, CEE_LDNULL);
5575 mono_mb_emit_stloc (mb, conv_arg);
5577 mono_mb_emit_ldarg (mb, argnum);
5578 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5579 mono_mb_emit_stloc (mb, conv_arg);
5581 } else if (klass == mono_defaults.stringbuilder_class) {
5582 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5583 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5587 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5588 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5589 mono_mb_emit_exception_marshal_directive (mb, msg);
5595 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5598 if (conv == MONO_MARSHAL_CONV_INVALID) {
5599 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5600 mono_mb_emit_exception_marshal_directive (mb, msg);
5604 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_byte (mb, CEE_LDIND_I);
5608 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5609 mono_mb_emit_stloc (mb, conv_arg);
5610 } else if (klass->blittable) {
5611 mono_mb_emit_byte (mb, CEE_LDNULL);
5612 mono_mb_emit_stloc (mb, conv_arg);
5614 mono_mb_emit_ldarg (mb, argnum);
5615 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5617 mono_mb_emit_ldarg (mb, argnum);
5618 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5619 mono_mb_emit_stloc (mb, conv_arg);
5621 mono_mb_patch_branch (mb, pos);
5624 mono_mb_emit_byte (mb, CEE_LDNULL);
5625 mono_mb_emit_stloc (mb, conv_arg);
5628 /* we dont need any conversions for out parameters */
5629 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5632 mono_mb_emit_ldarg (mb, argnum);
5633 mono_mb_emit_byte (mb, CEE_LDIND_I);
5636 mono_mb_emit_ldarg (mb, argnum);
5637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5638 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5641 /* store the address of the source into local variable 0 */
5642 mono_mb_emit_stloc (mb, 0);
5643 mono_mb_emit_ldloc (mb, 0);
5644 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5646 /* allocate space for the native struct and store the address */
5647 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5648 mono_mb_emit_byte (mb, CEE_PREFIX1);
5649 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5650 mono_mb_emit_stloc (mb, conv_arg);
5653 /* Need to store the original buffer so we can free it later */
5654 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5656 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5659 /* set the src_ptr */
5660 mono_mb_emit_ldloc (mb, 0);
5661 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5662 mono_mb_emit_stloc (mb, 0);
5665 mono_mb_emit_ldloc (mb, conv_arg);
5666 mono_mb_emit_stloc (mb, 1);
5668 /* emit valuetype conversion code */
5669 emit_struct_conv (mb, klass, FALSE);
5671 mono_mb_patch_branch (mb, pos);
5675 case MARSHAL_ACTION_CONV_OUT:
5676 if (klass == mono_defaults.stringbuilder_class) {
5678 MonoMarshalNative encoding;
5679 MonoMarshalConv conv;
5681 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5682 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5684 g_assert (encoding != -1);
5687 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5691 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_ldloc (mb, conv_arg);
5695 case MONO_NATIVE_LPWSTR:
5696 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5698 case MONO_NATIVE_LPSTR:
5699 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5702 g_assert_not_reached ();
5705 mono_mb_emit_byte (mb, CEE_STIND_REF);
5707 mono_mb_emit_ldarg (mb, argnum);
5708 mono_mb_emit_ldloc (mb, conv_arg);
5710 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5714 mono_mb_emit_ldloc (mb, conv_arg);
5715 mono_mb_emit_icall (mb, mono_marshal_free);
5720 if (klass->delegate) {
5722 mono_mb_emit_ldarg (mb, argnum);
5723 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5724 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5725 mono_mb_emit_ldloc (mb, conv_arg);
5726 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5727 mono_mb_emit_byte (mb, CEE_STIND_REF);
5732 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5733 /* allocate a new object */
5734 mono_mb_emit_ldarg (mb, argnum);
5735 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5736 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5737 mono_mb_emit_byte (mb, CEE_STIND_REF);
5740 /* dst = *argument */
5741 mono_mb_emit_ldarg (mb, argnum);
5744 mono_mb_emit_byte (mb, CEE_LDIND_I);
5746 mono_mb_emit_stloc (mb, 1);
5748 mono_mb_emit_ldloc (mb, 1);
5749 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5751 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5752 mono_mb_emit_ldloc (mb, 1);
5753 mono_mb_emit_icon (mb, sizeof (MonoObject));
5754 mono_mb_emit_byte (mb, CEE_ADD);
5755 mono_mb_emit_stloc (mb, 1);
5757 /* src = tmp_locals [i] */
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 mono_mb_emit_stloc (mb, 0);
5761 /* emit valuetype conversion code */
5762 emit_struct_conv (mb, klass, TRUE);
5764 /* Free the structure returned by the native code */
5765 emit_struct_free (mb, klass, conv_arg);
5767 if (m->orig_conv_args [argnum]) {
5769 * If the native function changed the pointer, then free
5770 * the original structure plus the new pointer.
5772 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5773 mono_mb_emit_ldloc (mb, conv_arg);
5774 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5776 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5777 g_assert (m->orig_conv_args [argnum]);
5779 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5782 mono_mb_emit_ldloc (mb, conv_arg);
5783 mono_mb_emit_icall (mb, mono_marshal_free);
5785 mono_mb_patch_branch (mb, pos2);
5789 /* Free the original structure passed to native code */
5790 emit_struct_free (mb, klass, conv_arg);
5792 mono_mb_patch_branch (mb, pos);
5795 case MARSHAL_ACTION_PUSH:
5797 mono_mb_emit_ldloc_addr (mb, conv_arg);
5799 mono_mb_emit_ldloc (mb, conv_arg);
5802 case MARSHAL_ACTION_CONV_RESULT:
5803 if (klass->delegate) {
5804 g_assert (!t->byref);
5805 mono_mb_emit_stloc (mb, 0);
5806 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5807 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5808 mono_mb_emit_ldloc (mb, 0);
5809 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5810 mono_mb_emit_stloc (mb, 3);
5813 mono_mb_emit_stloc (mb, 0);
5815 /* Make a copy since emit_conv modifies local 0 */
5816 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5817 mono_mb_emit_ldloc (mb, 0);
5818 mono_mb_emit_stloc (mb, loc);
5820 mono_mb_emit_byte (mb, CEE_LDNULL);
5821 mono_mb_emit_stloc (mb, 3);
5823 mono_mb_emit_ldloc (mb, 0);
5824 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5826 /* allocate result object */
5828 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5829 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5830 mono_mb_emit_stloc (mb, 3);
5834 mono_mb_emit_ldloc (mb, 3);
5835 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5836 mono_mb_emit_stloc (mb, 1);
5838 /* emit conversion code */
5839 emit_struct_conv (mb, klass, TRUE);
5841 emit_struct_free (mb, klass, loc);
5843 /* Free the pointer allocated by unmanaged code */
5844 mono_mb_emit_ldloc (mb, loc);
5845 mono_mb_emit_icall (mb, mono_marshal_free);
5846 mono_mb_patch_branch (mb, pos);
5850 case MARSHAL_ACTION_MANAGED_CONV_IN:
5851 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5853 if (klass->delegate) {
5854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5855 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5856 mono_mb_emit_ldarg (mb, argnum);
5858 mono_mb_emit_byte (mb, CEE_LDIND_I);
5859 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5860 mono_mb_emit_stloc (mb, conv_arg);
5864 if (klass == mono_defaults.stringbuilder_class) {
5865 MonoMarshalNative encoding;
5867 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5870 g_assert (encoding == MONO_NATIVE_LPSTR);
5872 g_assert (!t->byref);
5873 g_assert (encoding != -1);
5875 mono_mb_emit_ldarg (mb, argnum);
5876 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5877 mono_mb_emit_stloc (mb, conv_arg);
5881 /* The class can not have an automatic layout */
5882 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5883 mono_mb_emit_auto_layout_exception (mb, klass);
5887 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5888 mono_mb_emit_byte (mb, CEE_LDNULL);
5889 mono_mb_emit_stloc (mb, conv_arg);
5894 mono_mb_emit_ldarg (mb, argnum);
5898 /* Check for NULL and raise an exception */
5899 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5901 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5903 mono_mb_patch_branch (mb, pos2);
5904 mono_mb_emit_ldarg (mb, argnum);
5905 mono_mb_emit_byte (mb, CEE_LDIND_I);
5908 mono_mb_emit_stloc (mb, 0);
5910 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5911 mono_mb_emit_stloc (mb, conv_arg);
5913 mono_mb_emit_ldloc (mb, 0);
5914 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5916 /* Create and set dst */
5917 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5918 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5919 mono_mb_emit_stloc (mb, conv_arg);
5920 mono_mb_emit_ldloc (mb, conv_arg);
5921 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5922 mono_mb_emit_stloc (mb, 1);
5924 /* emit valuetype conversion code */
5925 emit_struct_conv (mb, klass, TRUE);
5927 mono_mb_patch_branch (mb, pos);
5930 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5931 if (klass->delegate) {
5934 mono_mb_emit_ldarg (mb, argnum);
5935 mono_mb_emit_ldloc (mb, conv_arg);
5936 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5937 mono_mb_emit_byte (mb, stind_op);
5943 /* Check for null */
5944 mono_mb_emit_ldloc (mb, conv_arg);
5945 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5946 mono_mb_emit_ldarg (mb, argnum);
5947 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5948 mono_mb_emit_byte (mb, CEE_STIND_REF);
5949 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5951 mono_mb_patch_branch (mb, pos);
5954 mono_mb_emit_ldloc (mb, conv_arg);
5955 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5956 mono_mb_emit_stloc (mb, 0);
5958 /* Allocate and set dest */
5959 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5960 mono_mb_emit_byte (mb, CEE_CONV_I);
5961 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5962 mono_mb_emit_stloc (mb, 1);
5964 /* Update argument pointer */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_ldloc (mb, 1);
5967 mono_mb_emit_byte (mb, CEE_STIND_I);
5969 /* emit valuetype conversion code */
5970 emit_struct_conv (mb, klass, FALSE);
5972 mono_mb_patch_branch (mb, pos2);
5973 } else if (klass == mono_defaults.stringbuilder_class) {
5974 // FIXME: What to do here ?
5976 /* byval [Out] marshalling */
5978 /* FIXME: Handle null */
5981 mono_mb_emit_ldloc (mb, conv_arg);
5982 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5983 mono_mb_emit_stloc (mb, 0);
5986 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_stloc (mb, 1);
5989 /* emit valuetype conversion code */
5990 emit_struct_conv (mb, klass, FALSE);
5994 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5995 if (klass->delegate) {
5996 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5997 mono_mb_emit_stloc (mb, 3);
6001 /* The class can not have an automatic layout */
6002 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6003 mono_mb_emit_auto_layout_exception (mb, klass);
6007 mono_mb_emit_stloc (mb, 0);
6008 /* Check for null */
6009 mono_mb_emit_ldloc (mb, 0);
6010 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6011 mono_mb_emit_byte (mb, CEE_LDNULL);
6012 mono_mb_emit_stloc (mb, 3);
6013 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6015 mono_mb_patch_branch (mb, pos);
6018 mono_mb_emit_ldloc (mb, 0);
6019 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6020 mono_mb_emit_stloc (mb, 0);
6022 /* Allocate and set dest */
6023 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6024 mono_mb_emit_byte (mb, CEE_CONV_I);
6025 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6026 mono_mb_emit_byte (mb, CEE_DUP);
6027 mono_mb_emit_stloc (mb, 1);
6028 mono_mb_emit_stloc (mb, 3);
6030 emit_struct_conv (mb, klass, FALSE);
6032 mono_mb_patch_branch (mb, pos2);
6036 g_assert_not_reached ();
6047 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6048 MonoMarshalSpec *spec,
6049 int conv_arg, MonoType **conv_arg_type,
6050 MarshalAction action)
6052 MonoMethodBuilder *mb = m->mb;
6053 static MonoMethod *get_object_for_native_variant = NULL;
6054 static MonoMethod *get_native_variant_for_object = NULL;
6056 if (!get_object_for_native_variant)
6057 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6058 g_assert (get_object_for_native_variant);
6060 if (!get_native_variant_for_object)
6061 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6062 g_assert (get_native_variant_for_object);
6065 case MARSHAL_ACTION_CONV_IN: {
6066 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6069 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6071 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6073 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6076 mono_mb_emit_ldarg (mb, argnum);
6078 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6079 mono_mb_emit_ldloc_addr (mb, conv_arg);
6080 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6084 case MARSHAL_ACTION_CONV_OUT: {
6085 static MonoMethod *variant_clear = NULL;
6088 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6089 g_assert (variant_clear);
6092 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6093 mono_mb_emit_ldarg (mb, argnum);
6094 mono_mb_emit_ldloc_addr (mb, conv_arg);
6095 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6096 mono_mb_emit_byte (mb, CEE_STIND_REF);
6099 mono_mb_emit_ldloc_addr (mb, conv_arg);
6100 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6104 case MARSHAL_ACTION_PUSH:
6106 mono_mb_emit_ldloc_addr (mb, conv_arg);
6108 mono_mb_emit_ldloc (mb, conv_arg);
6111 case MARSHAL_ACTION_CONV_RESULT: {
6112 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6113 mono_mb_emit_exception_marshal_directive (mb, msg);
6117 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6118 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6121 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6123 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6125 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6129 mono_mb_emit_ldarg (mb, argnum);
6131 mono_mb_emit_ldarg_addr (mb, argnum);
6132 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6133 mono_mb_emit_stloc (mb, conv_arg);
6137 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6138 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6139 mono_mb_emit_ldloc (mb, conv_arg);
6140 mono_mb_emit_ldarg (mb, argnum);
6141 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6146 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6147 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6153 g_assert_not_reached ();
6159 #endif /* DISABLE_COM */
6160 #endif /* DISABLE_JIT */
6163 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6165 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6166 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6168 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6170 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6182 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6183 MonoMarshalSpec *spec,
6184 int conv_arg, MonoType **conv_arg_type,
6185 MarshalAction action)
6189 case MARSHAL_ACTION_CONV_IN:
6190 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6192 case MARSHAL_ACTION_MANAGED_CONV_IN:
6193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6197 MonoMethodBuilder *mb = m->mb;
6198 MonoClass *klass = mono_class_from_mono_type (t);
6199 gboolean need_convert, need_free;
6200 MonoMarshalNative encoding;
6202 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6205 case MARSHAL_ACTION_CONV_IN:
6206 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6207 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6209 if (klass->element_class->blittable) {
6210 mono_mb_emit_ldarg (mb, argnum);
6212 mono_mb_emit_byte (mb, CEE_LDIND_I);
6213 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6214 mono_mb_emit_stloc (mb, conv_arg);
6217 guint32 label1, label2, label3;
6218 int index_var, src_var, dest_ptr, esize;
6219 MonoMarshalConv conv;
6220 gboolean is_string = FALSE;
6222 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6224 eklass = klass->element_class;
6226 if (eklass == mono_defaults.string_class) {
6228 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6230 else if (eklass == mono_defaults.stringbuilder_class) {
6232 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6235 conv = MONO_MARSHAL_CONV_INVALID;
6237 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6238 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6239 mono_mb_emit_exception_marshal_directive (mb, msg);
6243 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6244 mono_mb_emit_ldarg (mb, argnum);
6246 mono_mb_emit_byte (mb, CEE_LDIND_I);
6247 mono_mb_emit_stloc (mb, src_var);
6250 mono_mb_emit_ldloc (mb, src_var);
6251 mono_mb_emit_stloc (mb, conv_arg);
6252 mono_mb_emit_ldloc (mb, src_var);
6253 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6256 esize = sizeof (gpointer);
6257 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6258 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6260 esize = mono_class_native_size (eklass, NULL);
6262 /* allocate space for the native struct and store the address */
6263 mono_mb_emit_icon (mb, esize);
6264 mono_mb_emit_ldloc (mb, src_var);
6265 mono_mb_emit_byte (mb, CEE_LDLEN);
6267 if (eklass == mono_defaults.string_class) {
6268 /* Make the array bigger for the terminating null */
6269 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6270 mono_mb_emit_byte (mb, CEE_ADD);
6272 mono_mb_emit_byte (mb, CEE_MUL);
6273 mono_mb_emit_byte (mb, CEE_PREFIX1);
6274 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6275 mono_mb_emit_stloc (mb, conv_arg);
6277 mono_mb_emit_ldloc (mb, conv_arg);
6278 mono_mb_emit_stloc (mb, dest_ptr);
6280 /* Emit marshalling loop */
6281 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6283 mono_mb_emit_stloc (mb, index_var);
6284 label2 = mono_mb_get_label (mb);
6285 mono_mb_emit_ldloc (mb, index_var);
6286 mono_mb_emit_ldloc (mb, src_var);
6287 mono_mb_emit_byte (mb, CEE_LDLEN);
6288 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6290 /* Emit marshalling code */
6294 mono_mb_emit_ldloc (mb, dest_ptr);
6295 mono_mb_emit_ldloc (mb, src_var);
6296 mono_mb_emit_ldloc (mb, index_var);
6297 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6298 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6299 mono_mb_emit_byte (mb, stind_op);
6301 /* set the src_ptr */
6302 mono_mb_emit_ldloc (mb, src_var);
6303 mono_mb_emit_ldloc (mb, index_var);
6304 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6305 mono_mb_emit_stloc (mb, 0);
6308 mono_mb_emit_ldloc (mb, dest_ptr);
6309 mono_mb_emit_stloc (mb, 1);
6311 /* emit valuetype conversion code */
6312 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6315 mono_mb_emit_add_to_local (mb, index_var, 1);
6316 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6318 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6320 mono_mb_patch_branch (mb, label3);
6322 if (eklass == mono_defaults.string_class) {
6323 /* Null terminate */
6324 mono_mb_emit_ldloc (mb, dest_ptr);
6325 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6326 mono_mb_emit_byte (mb, CEE_STIND_REF);
6329 mono_mb_patch_branch (mb, label1);
6334 case MARSHAL_ACTION_CONV_OUT:
6335 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6336 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);
6337 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6340 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6341 int param_num = spec->data.array_data.param_num;
6342 MonoType *param_type;
6344 param_type = m->sig->params [param_num];
6346 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6347 char *msg = g_strdup ("Not implemented.");
6348 mono_mb_emit_exception_marshal_directive (mb, msg);
6353 mono_mb_emit_ldarg (mb, argnum);
6355 /* Create the managed array */
6356 mono_mb_emit_ldarg (mb, param_num);
6357 if (m->sig->params [param_num]->byref)
6358 // FIXME: Support other types
6359 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6360 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6361 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6362 /* Store into argument */
6363 mono_mb_emit_byte (mb, CEE_STIND_REF);
6367 if (need_convert || need_free) {
6368 /* FIXME: Optimize blittable case */
6370 guint32 label1, label2, label3;
6371 int index_var, src_ptr, loc, esize;
6373 eklass = klass->element_class;
6374 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6375 esize = sizeof (gpointer);
6376 else if (eklass == mono_defaults.char_class)
6377 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6379 esize = mono_class_native_size (eklass, NULL);
6380 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6381 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6384 mono_mb_emit_ldarg (mb, argnum);
6386 mono_mb_emit_byte (mb, CEE_LDIND_I);
6387 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6389 mono_mb_emit_ldloc (mb, conv_arg);
6390 mono_mb_emit_stloc (mb, src_ptr);
6392 /* Emit marshalling loop */
6393 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6394 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6395 mono_mb_emit_stloc (mb, index_var);
6396 label2 = mono_mb_get_label (mb);
6397 mono_mb_emit_ldloc (mb, index_var);
6398 mono_mb_emit_ldarg (mb, argnum);
6400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6401 mono_mb_emit_byte (mb, CEE_LDLEN);
6402 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6404 /* Emit marshalling code */
6406 if (eklass == mono_defaults.stringbuilder_class) {
6407 gboolean need_free2;
6408 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6410 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6413 mono_mb_emit_ldarg (mb, argnum);
6415 mono_mb_emit_byte (mb, CEE_LDIND_I);
6416 mono_mb_emit_ldloc (mb, index_var);
6417 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6420 mono_mb_emit_ldloc (mb, src_ptr);
6421 mono_mb_emit_byte (mb, CEE_LDIND_I);
6423 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6427 mono_mb_emit_ldloc (mb, src_ptr);
6428 mono_mb_emit_byte (mb, CEE_LDIND_I);
6430 mono_mb_emit_icall (mb, mono_marshal_free);
6433 else if (eklass == mono_defaults.string_class) {
6436 mono_mb_emit_ldloc (mb, src_ptr);
6437 mono_mb_emit_byte (mb, CEE_LDIND_I);
6439 mono_mb_emit_icall (mb, mono_marshal_free);
6444 /* set the src_ptr */
6445 mono_mb_emit_ldloc (mb, src_ptr);
6446 mono_mb_emit_stloc (mb, 0);
6449 mono_mb_emit_ldarg (mb, argnum);
6451 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6452 mono_mb_emit_ldloc (mb, index_var);
6453 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6454 mono_mb_emit_stloc (mb, 1);
6456 /* emit valuetype conversion code */
6457 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6461 mono_mb_emit_ldloc (mb, src_ptr);
6462 mono_mb_emit_stloc (mb, loc);
6463 mono_mb_emit_ldloc (mb, loc);
6465 emit_struct_free (mb, eklass, loc);
6469 mono_mb_emit_add_to_local (mb, index_var, 1);
6470 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6472 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6474 mono_mb_patch_branch (mb, label1);
6475 mono_mb_patch_branch (mb, label3);
6478 if (klass->element_class->blittable) {
6479 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6481 mono_mb_emit_ldarg (mb, argnum);
6483 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6485 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6490 case MARSHAL_ACTION_PUSH:
6492 mono_mb_emit_ldloc_addr (mb, conv_arg);
6494 mono_mb_emit_ldloc (mb, conv_arg);
6497 case MARSHAL_ACTION_CONV_RESULT:
6498 /* fixme: we need conversions here */
6499 mono_mb_emit_stloc (mb, 3);
6502 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6504 guint32 label1, label2, label3;
6505 int index_var, src_ptr, esize, param_num, num_elem;
6506 MonoMarshalConv conv;
6507 gboolean is_string = FALSE;
6509 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6510 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6513 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6514 mono_mb_emit_exception_marshal_directive (mb, msg);
6518 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6519 mono_mb_emit_exception_marshal_directive (mb, msg);
6522 if (spec->native != MONO_NATIVE_LPARRAY) {
6523 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6524 mono_mb_emit_exception_marshal_directive (mb, msg);
6528 /* FIXME: t is from the method which is wrapped, not the delegate type */
6529 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6531 param_num = spec->data.array_data.param_num;
6532 num_elem = spec->data.array_data.num_elem;
6533 if (spec->data.array_data.elem_mult == 0)
6534 /* param_num is not specified */
6537 if (param_num == -1) {
6538 if (num_elem <= 0) {
6539 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6540 mono_mb_emit_exception_marshal_directive (mb, msg);
6545 /* FIXME: Optimize blittable case */
6547 eklass = klass->element_class;
6548 if (eklass == mono_defaults.string_class) {
6550 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6552 else if (eklass == mono_defaults.stringbuilder_class) {
6554 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6557 conv = MONO_MARSHAL_CONV_INVALID;
6559 mono_marshal_load_type_info (eklass);
6562 esize = sizeof (gpointer);
6564 esize = mono_class_native_size (eklass, NULL);
6565 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6567 mono_mb_emit_byte (mb, CEE_LDNULL);
6568 mono_mb_emit_stloc (mb, conv_arg);
6570 /* Check param index */
6571 if (param_num != -1) {
6572 if (param_num >= m->sig->param_count) {
6573 char *msg = g_strdup ("Array size control parameter index is out of range.");
6574 mono_mb_emit_exception_marshal_directive (mb, msg);
6577 switch (m->sig->params [param_num]->type) {
6590 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6591 mono_mb_emit_exception_marshal_directive (mb, msg);
6598 mono_mb_emit_ldarg (mb, argnum);
6599 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6601 mono_mb_emit_ldarg (mb, argnum);
6602 mono_mb_emit_stloc (mb, src_ptr);
6604 /* Create managed array */
6606 * The LPArray marshalling spec says that sometimes param_num starts
6607 * from 1, sometimes it starts from 0. But MS seems to allways start
6611 if (param_num == -1) {
6612 mono_mb_emit_icon (mb, num_elem);
6614 mono_mb_emit_ldarg (mb, param_num);
6616 mono_mb_emit_icon (mb, num_elem);
6617 mono_mb_emit_byte (mb, CEE_ADD);
6619 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6622 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6623 mono_mb_emit_stloc (mb, conv_arg);
6625 if (eklass->blittable) {
6626 mono_mb_emit_ldloc (mb, conv_arg);
6627 mono_mb_emit_byte (mb, CEE_CONV_I);
6628 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6629 mono_mb_emit_byte (mb, CEE_ADD);
6630 mono_mb_emit_ldarg (mb, argnum);
6631 mono_mb_emit_ldloc (mb, conv_arg);
6632 mono_mb_emit_byte (mb, CEE_LDLEN);
6633 mono_mb_emit_icon (mb, esize);
6634 mono_mb_emit_byte (mb, CEE_MUL);
6635 mono_mb_emit_byte (mb, CEE_PREFIX1);
6636 mono_mb_emit_byte (mb, CEE_CPBLK);
6640 /* Emit marshalling loop */
6641 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6642 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6643 mono_mb_emit_stloc (mb, index_var);
6644 label2 = mono_mb_get_label (mb);
6645 mono_mb_emit_ldloc (mb, index_var);
6646 mono_mb_emit_ldloc (mb, conv_arg);
6647 mono_mb_emit_byte (mb, CEE_LDLEN);
6648 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6650 /* Emit marshalling code */
6652 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6655 mono_mb_emit_ldloc (mb, index_var);
6657 mono_mb_emit_ldloc (mb, src_ptr);
6658 mono_mb_emit_byte (mb, CEE_LDIND_I);
6660 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6661 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6664 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6665 mono_mb_emit_exception_marshal_directive (mb, msg);
6669 mono_mb_emit_add_to_local (mb, index_var, 1);
6670 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6672 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6674 mono_mb_patch_branch (mb, label1);
6675 mono_mb_patch_branch (mb, label3);
6679 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6681 guint32 label1, label2, label3;
6682 int index_var, dest_ptr, esize, param_num, num_elem;
6683 MonoMarshalConv conv;
6684 gboolean is_string = FALSE;
6687 /* Already handled in CONV_IN */
6690 /* These are already checked in CONV_IN */
6691 g_assert (!t->byref);
6692 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6693 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6695 param_num = spec->data.array_data.param_num;
6696 num_elem = spec->data.array_data.num_elem;
6698 if (spec->data.array_data.elem_mult == 0)
6699 /* param_num is not specified */
6702 if (param_num == -1) {
6703 if (num_elem <= 0) {
6704 g_assert_not_reached ();
6708 /* FIXME: Optimize blittable case */
6710 eklass = klass->element_class;
6711 if (eklass == mono_defaults.string_class) {
6713 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6715 else if (eklass == mono_defaults.stringbuilder_class) {
6717 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6720 conv = MONO_MARSHAL_CONV_INVALID;
6722 mono_marshal_load_type_info (eklass);
6725 esize = sizeof (gpointer);
6727 esize = mono_class_native_size (eklass, NULL);
6729 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6735 mono_mb_emit_ldarg (mb, argnum);
6736 mono_mb_emit_stloc (mb, dest_ptr);
6738 if (eklass->blittable) {
6740 mono_mb_emit_ldarg (mb, argnum);
6742 mono_mb_emit_ldloc (mb, conv_arg);
6743 mono_mb_emit_byte (mb, CEE_CONV_I);
6744 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6745 mono_mb_emit_byte (mb, CEE_ADD);
6747 mono_mb_emit_ldloc (mb, conv_arg);
6748 mono_mb_emit_byte (mb, CEE_LDLEN);
6749 mono_mb_emit_icon (mb, esize);
6750 mono_mb_emit_byte (mb, CEE_MUL);
6751 mono_mb_emit_byte (mb, CEE_PREFIX1);
6752 mono_mb_emit_byte (mb, CEE_CPBLK);
6756 /* Emit marshalling loop */
6757 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6758 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6759 mono_mb_emit_stloc (mb, index_var);
6760 label2 = mono_mb_get_label (mb);
6761 mono_mb_emit_ldloc (mb, index_var);
6762 mono_mb_emit_ldloc (mb, conv_arg);
6763 mono_mb_emit_byte (mb, CEE_LDLEN);
6764 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6766 /* Emit marshalling code */
6769 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6772 mono_mb_emit_ldloc (mb, dest_ptr);
6775 mono_mb_emit_ldloc (mb, conv_arg);
6776 mono_mb_emit_ldloc (mb, index_var);
6778 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6780 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6781 mono_mb_emit_byte (mb, stind_op);
6784 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6785 mono_mb_emit_exception_marshal_directive (mb, msg);
6789 mono_mb_emit_add_to_local (mb, index_var, 1);
6790 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6792 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6794 mono_mb_patch_branch (mb, label1);
6795 mono_mb_patch_branch (mb, label3);
6799 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6801 guint32 label1, label2, label3;
6802 int index_var, src, dest, esize;
6803 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6804 gboolean is_string = FALSE;
6806 g_assert (!t->byref);
6808 eklass = klass->element_class;
6810 mono_marshal_load_type_info (eklass);
6812 if (eklass == mono_defaults.string_class) {
6814 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6817 g_assert_not_reached ();
6821 esize = sizeof (gpointer);
6822 else if (eklass == mono_defaults.char_class)
6823 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6825 esize = mono_class_native_size (eklass, NULL);
6827 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6828 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6830 mono_mb_emit_stloc (mb, src);
6831 mono_mb_emit_ldloc (mb, src);
6832 mono_mb_emit_stloc (mb, 3);
6834 /* Check for null */
6835 mono_mb_emit_ldloc (mb, src);
6836 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6838 /* Allocate native array */
6839 mono_mb_emit_icon (mb, esize);
6840 mono_mb_emit_ldloc (mb, src);
6841 mono_mb_emit_byte (mb, CEE_LDLEN);
6843 if (eklass == mono_defaults.string_class) {
6844 /* Make the array bigger for the terminating null */
6845 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6846 mono_mb_emit_byte (mb, CEE_ADD);
6848 mono_mb_emit_byte (mb, CEE_MUL);
6849 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6850 mono_mb_emit_stloc (mb, dest);
6851 mono_mb_emit_ldloc (mb, dest);
6852 mono_mb_emit_stloc (mb, 3);
6854 /* Emit marshalling loop */
6855 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6856 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6857 mono_mb_emit_stloc (mb, index_var);
6858 label2 = mono_mb_get_label (mb);
6859 mono_mb_emit_ldloc (mb, index_var);
6860 mono_mb_emit_ldloc (mb, src);
6861 mono_mb_emit_byte (mb, CEE_LDLEN);
6862 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6864 /* Emit marshalling code */
6867 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6870 mono_mb_emit_ldloc (mb, dest);
6873 mono_mb_emit_ldloc (mb, src);
6874 mono_mb_emit_ldloc (mb, index_var);
6876 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6878 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6879 mono_mb_emit_byte (mb, stind_op);
6882 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6883 mono_mb_emit_exception_marshal_directive (mb, msg);
6887 mono_mb_emit_add_to_local (mb, index_var, 1);
6888 mono_mb_emit_add_to_local (mb, dest, esize);
6890 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6892 mono_mb_patch_branch (mb, label3);
6893 mono_mb_patch_branch (mb, label1);
6897 g_assert_not_reached ();
6904 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6907 return &mono_defaults.int32_class->byval_arg;
6909 switch (spec->native) {
6910 case MONO_NATIVE_I1:
6911 case MONO_NATIVE_U1:
6912 return &mono_defaults.byte_class->byval_arg;
6913 case MONO_NATIVE_VARIANTBOOL:
6914 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6915 return &mono_defaults.int16_class->byval_arg;
6916 case MONO_NATIVE_BOOLEAN:
6917 return &mono_defaults.int32_class->byval_arg;
6919 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6920 return &mono_defaults.int32_class->byval_arg;
6926 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6928 MonoClass* conv_arg_class = mono_defaults.int32_class;
6930 switch (spec->native) {
6931 case MONO_NATIVE_I1:
6932 case MONO_NATIVE_U1:
6933 conv_arg_class = mono_defaults.byte_class;
6934 if (ldop) *ldop = CEE_LDIND_I1;
6936 case MONO_NATIVE_VARIANTBOOL:
6937 conv_arg_class = mono_defaults.int16_class;
6938 if (ldop) *ldop = CEE_LDIND_I2;
6940 case MONO_NATIVE_BOOLEAN:
6943 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6946 return conv_arg_class;
6950 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6951 MonoMarshalSpec *spec,
6952 int conv_arg, MonoType **conv_arg_type,
6953 MarshalAction action)
6957 case MARSHAL_ACTION_CONV_IN:
6959 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6961 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6964 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6965 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6967 *conv_arg_type = &conv_arg_class->this_arg;
6969 *conv_arg_type = &conv_arg_class->byval_arg;
6975 MonoMethodBuilder *mb = m->mb;
6978 case MARSHAL_ACTION_CONV_IN: {
6979 MonoType *local_type;
6981 guint8 ldc_op = CEE_LDC_I4_1;
6983 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6985 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6987 *conv_arg_type = local_type;
6988 conv_arg = mono_mb_add_local (mb, local_type);
6990 mono_mb_emit_ldarg (mb, argnum);
6992 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6993 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6994 mono_mb_emit_byte (mb, ldc_op);
6995 mono_mb_emit_stloc (mb, conv_arg);
6996 mono_mb_patch_branch (mb, label_false);
7001 case MARSHAL_ACTION_CONV_OUT:
7003 int label_false, label_end;
7007 mono_mb_emit_ldarg (mb, argnum);
7008 mono_mb_emit_ldloc (mb, conv_arg);
7010 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7011 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7013 label_end = mono_mb_emit_branch (mb, CEE_BR);
7014 mono_mb_patch_branch (mb, label_false);
7015 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7016 mono_mb_patch_branch (mb, label_end);
7018 mono_mb_emit_byte (mb, CEE_STIND_I1);
7022 case MARSHAL_ACTION_PUSH:
7024 mono_mb_emit_ldloc_addr (mb, conv_arg);
7026 mono_mb_emit_ldloc (mb, conv_arg);
7028 mono_mb_emit_ldarg (mb, argnum);
7031 case MARSHAL_ACTION_CONV_RESULT:
7032 /* maybe we need to make sure that it fits within 8 bits */
7033 mono_mb_emit_stloc (mb, 3);
7036 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7037 MonoClass* conv_arg_class = mono_defaults.int32_class;
7038 guint8 ldop = CEE_LDIND_I4;
7039 int label_null, label_false;
7041 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7042 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7045 *conv_arg_type = &conv_arg_class->this_arg;
7047 *conv_arg_type = &conv_arg_class->byval_arg;
7050 mono_mb_emit_ldarg (mb, argnum);
7054 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7055 mono_mb_emit_ldarg (mb, argnum);
7056 mono_mb_emit_byte (mb, ldop);
7060 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7061 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7062 mono_mb_emit_stloc (mb, conv_arg);
7063 mono_mb_patch_branch (mb, label_false);
7066 mono_mb_patch_branch (mb, label_null);
7070 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7071 guint8 stop = CEE_STIND_I4;
7072 guint8 ldc_op = CEE_LDC_I4_1;
7073 int label_null,label_false, label_end;;
7078 switch (spec->native) {
7079 case MONO_NATIVE_I1:
7080 case MONO_NATIVE_U1:
7081 stop = CEE_STIND_I1;
7083 case MONO_NATIVE_VARIANTBOOL:
7084 stop = CEE_STIND_I2;
7085 ldc_op = CEE_LDC_I4_M1;
7093 mono_mb_emit_ldarg (mb, argnum);
7094 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7096 mono_mb_emit_ldarg (mb, argnum);
7097 mono_mb_emit_ldloc (mb, conv_arg);
7099 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7100 mono_mb_emit_byte (mb, ldc_op);
7101 label_end = mono_mb_emit_branch (mb, CEE_BR);
7103 mono_mb_patch_branch (mb, label_false);
7104 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7105 mono_mb_patch_branch (mb, label_end);
7107 mono_mb_emit_byte (mb, stop);
7108 mono_mb_patch_branch (mb, label_null);
7113 g_assert_not_reached ();
7120 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7121 MonoMarshalSpec *spec, int conv_arg,
7122 MonoType **conv_arg_type, MarshalAction action)
7125 MonoMethodBuilder *mb = m->mb;
7128 case MARSHAL_ACTION_CONV_IN:
7129 /* MS seems to allow this in some cases, ie. bxc #158 */
7131 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7132 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7133 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7138 case MARSHAL_ACTION_PUSH:
7139 mono_mb_emit_ldarg (mb, argnum);
7142 case MARSHAL_ACTION_CONV_RESULT:
7143 /* no conversions necessary */
7144 mono_mb_emit_stloc (mb, 3);
7155 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7156 MonoMarshalSpec *spec, int conv_arg,
7157 MonoType **conv_arg_type, MarshalAction action)
7160 MonoMethodBuilder *mb = m->mb;
7163 case MARSHAL_ACTION_PUSH:
7164 /* fixme: dont know how to marshal that. We cant simply
7165 * convert it to a one byte UTF8 character, because an
7166 * unicode character may need more that one byte in UTF8 */
7167 mono_mb_emit_ldarg (mb, argnum);
7170 case MARSHAL_ACTION_CONV_RESULT:
7171 /* fixme: we need conversions here */
7172 mono_mb_emit_stloc (mb, 3);
7183 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7184 MonoMarshalSpec *spec, int conv_arg,
7185 MonoType **conv_arg_type, MarshalAction action)
7188 MonoMethodBuilder *mb = m->mb;
7191 case MARSHAL_ACTION_PUSH:
7192 mono_mb_emit_ldarg (mb, argnum);
7195 case MARSHAL_ACTION_CONV_RESULT:
7196 /* no conversions necessary */
7197 mono_mb_emit_stloc (mb, 3);
7208 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7209 MonoMarshalSpec *spec, int conv_arg,
7210 MonoType **conv_arg_type, MarshalAction action)
7212 /* Ensure that we have marshalling info for this param */
7213 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7215 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7216 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7218 if (spec && spec->native == MONO_NATIVE_ASANY)
7219 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7222 case MONO_TYPE_VALUETYPE:
7223 if (t->data.klass == mono_defaults.handleref_class)
7224 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7226 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7227 case MONO_TYPE_STRING:
7228 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7229 case MONO_TYPE_CLASS:
7230 case MONO_TYPE_OBJECT:
7231 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7232 if (spec && spec->native == MONO_NATIVE_STRUCT)
7233 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7236 #if !defined(DISABLE_COM)
7237 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7238 spec->native == MONO_NATIVE_IDISPATCH ||
7239 spec->native == MONO_NATIVE_INTERFACE))
7240 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7241 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7242 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7243 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7244 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7247 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7248 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7249 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7252 case MONO_TYPE_ARRAY:
7253 case MONO_TYPE_SZARRAY:
7254 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7255 case MONO_TYPE_BOOLEAN:
7256 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7258 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7259 case MONO_TYPE_CHAR:
7260 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 case MONO_TYPE_FNPTR:
7274 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 case MONO_TYPE_GENERICINST:
7276 if (mono_type_generic_inst_is_valuetype (t))
7277 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7287 * mono_marshal_emit_native_wrapper:
7288 * @image: the image to use for looking up custom marshallers
7289 * @sig: The signature of the native function
7290 * @piinfo: Marshalling information
7291 * @mspecs: Marshalling information
7292 * @aot: whenever the created method will be compiled by the AOT compiler
7293 * @method: if non-NULL, the pinvoke method to call
7294 * @check_exceptions: Whenever to check for pending exceptions after the native call
7295 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7297 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7300 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)
7302 EmitMarshalContext m;
7303 MonoMethodSignature *csig;
7305 int i, argnum, *tmp_locals;
7306 int type, param_shift = 0;
7307 static MonoMethodSignature *get_last_error_sig = NULL;
7308 int coop_gc_stack_dummy, coop_gc_var;
7310 memset (&m, 0, sizeof (m));
7315 /* we copy the signature, so that we can set pinvoke to 0 */
7317 /* The function address is passed as the first argument */
7318 g_assert (!sig->hasthis);
7321 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7329 /* we allocate local for use with emit_struct_conv() */
7330 /* allocate local 0 (pointer) src_ptr */
7331 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7332 /* allocate local 1 (pointer) dst_ptr */
7333 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7334 /* allocate local 2 (boolean) delete_old */
7335 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7337 /* delete_old = FALSE */
7338 mono_mb_emit_icon (mb, 0);
7339 mono_mb_emit_stloc (mb, 2);
7341 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7342 /* allocate local 3 to store the return value */
7343 mono_mb_add_local (mb, sig->ret);
7346 if (mono_threads_is_coop_enabled ()) {
7347 /* local 4, dummy local used to get a stack address for suspend funcs */
7348 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7349 /* local 5, the local to be used when calling the suspend funcs */
7350 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7354 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7356 * ret = method (...);
7358 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7365 if (MONO_TYPE_ISSTRUCT (sig->ret))
7366 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7368 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7369 /* Return type custom marshaling */
7371 * Since we can't determine the return type of the unmanaged function,
7372 * we assume it returns a pointer, and pass that pointer to
7373 * MarshalNativeToManaged.
7375 csig->ret = &mono_defaults.int_class->byval_arg;
7378 /* we first do all conversions */
7379 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7380 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7382 for (i = 0; i < sig->param_count; i ++) {
7383 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7386 // In coop mode need to register blocking state during native call
7387 if (mono_threads_is_coop_enabled ()) {
7388 // Perform an extra, early lookup of the function address, so any exceptions
7389 // potentially resulting from the lookup occur before entering blocking mode.
7390 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7392 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7393 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7396 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7397 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7398 mono_mb_emit_stloc (mb, coop_gc_var);
7401 /* push all arguments */
7404 mono_mb_emit_byte (mb, CEE_LDARG_0);
7406 for (i = 0; i < sig->param_count; i++) {
7407 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7410 /* call the native method */
7412 mono_mb_emit_byte (mb, CEE_LDARG_0);
7413 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7414 mono_mb_emit_byte (mb, CEE_LDIND_I);
7415 mono_mb_emit_calli (mb, csig);
7416 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7418 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7420 g_assert_not_reached ();
7424 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7425 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7426 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7427 mono_mb_emit_calli (mb, csig);
7429 mono_mb_emit_native_call (mb, csig, func);
7433 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7434 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7435 mono_class_init (klass);
7436 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7437 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7439 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7440 mono_mb_emit_stloc (mb, m.vtaddr_var);
7444 /* Unblock before converting the result, since that can involve calls into the runtime */
7445 if (mono_threads_is_coop_enabled ()) {
7446 mono_mb_emit_ldloc (mb, coop_gc_var);
7447 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7448 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7451 /* Set LastError if needed */
7452 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7453 if (!get_last_error_sig) {
7454 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7455 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7456 get_last_error_sig->pinvoke = 1;
7461 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7462 * clobber its value.
7464 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7465 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7467 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7471 /* convert the result */
7472 if (!sig->ret->byref) {
7473 MonoMarshalSpec *spec = mspecs [0];
7474 type = sig->ret->type;
7476 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7477 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7481 case MONO_TYPE_VOID:
7483 case MONO_TYPE_VALUETYPE:
7484 klass = sig->ret->data.klass;
7485 if (klass->enumtype) {
7486 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7489 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7503 case MONO_TYPE_FNPTR:
7504 case MONO_TYPE_STRING:
7505 case MONO_TYPE_CLASS:
7506 case MONO_TYPE_OBJECT:
7507 case MONO_TYPE_BOOLEAN:
7508 case MONO_TYPE_ARRAY:
7509 case MONO_TYPE_SZARRAY:
7510 case MONO_TYPE_CHAR:
7512 case MONO_TYPE_GENERICINST:
7513 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7515 case MONO_TYPE_TYPEDBYREF:
7517 g_warning ("return type 0x%02x unknown", sig->ret->type);
7518 g_assert_not_reached ();
7522 mono_mb_emit_stloc (mb, 3);
7526 * Need to call this after converting the result since MONO_VTADDR needs
7527 * to be adjacent to the call instruction.
7529 if (check_exceptions)
7530 emit_thread_interrupt_checkpoint (mb);
7532 /* we need to convert byref arguments back and free string arrays */
7533 for (i = 0; i < sig->param_count; i++) {
7534 MonoType *t = sig->params [i];
7535 MonoMarshalSpec *spec = mspecs [i + 1];
7537 argnum = i + param_shift;
7539 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7540 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7545 case MONO_TYPE_STRING:
7546 case MONO_TYPE_VALUETYPE:
7547 case MONO_TYPE_CLASS:
7548 case MONO_TYPE_OBJECT:
7549 case MONO_TYPE_SZARRAY:
7550 case MONO_TYPE_BOOLEAN:
7551 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7558 if (!MONO_TYPE_IS_VOID(sig->ret))
7559 mono_mb_emit_ldloc (mb, 3);
7561 mono_mb_emit_byte (mb, CEE_RET);
7563 #endif /* DISABLE_JIT */
7566 * mono_marshal_get_native_wrapper:
7567 * @method: The MonoMethod to wrap.
7568 * @check_exceptions: Whenever to check for pending exceptions
7570 * generates IL code for the pinvoke wrapper (the generated method
7571 * calls the unmanaged code in piinfo->addr)
7572 * The wrapper info for the wrapper is a WrapperInfo structure.
7575 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7577 MonoMethodSignature *sig, *csig;
7578 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7579 MonoMethodBuilder *mb;
7580 MonoMarshalSpec **mspecs;
7583 gboolean pinvoke = FALSE;
7586 const char *exc_class = "MissingMethodException";
7587 const char *exc_arg = NULL;
7590 g_assert (method != NULL);
7591 g_assert (mono_method_signature (method)->pinvoke);
7593 GHashTable **cache_ptr;
7596 if (check_exceptions)
7597 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7599 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7601 if (check_exceptions)
7602 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7604 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7607 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7609 if ((res = mono_marshal_find_in_cache (cache, method)))
7612 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7613 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7617 return mono_cominterop_get_native_wrapper (method);
7619 g_assert_not_reached ();
7623 sig = mono_method_signature (method);
7625 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7626 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7629 if (!piinfo->addr) {
7631 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7632 exc_arg = "Method contains unsupported native code";
7634 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7636 piinfo->addr = mono_lookup_internal_call (method);
7640 /* hack - redirect certain string constructors to CreateString */
7641 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7642 g_assert (!pinvoke);
7643 g_assert (method->string_ctor);
7644 g_assert (sig->hasthis);
7646 /* CreateString returns a value */
7647 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7648 csig->ret = &mono_defaults.string_class->byval_arg;
7652 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7653 if (!strcmp ("CreateString", res->name) &&
7654 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7657 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7658 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7660 /* create a wrapper to preserve .ctor in stack trace */
7661 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7664 mono_mb_emit_byte (mb, CEE_LDARG_0);
7665 for (i = 1; i <= csig->param_count; i++)
7666 mono_mb_emit_ldarg (mb, i);
7667 mono_mb_emit_managed_call (mb, res, NULL);
7668 mono_mb_emit_byte (mb, CEE_RET);
7671 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7672 info->d.string_ctor.method = method;
7674 /* use native_wrapper_cache because internal calls are looked up there */
7675 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7676 csig->param_count + 1, info, NULL);
7683 /* exception will be thrown */
7684 piinfo->addr = NULL;
7685 g_warning ("cannot find CreateString for .ctor");
7688 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7690 mb->method->save_lmf = 1;
7693 * In AOT mode and embedding scenarios, it is possible that the icall is not
7694 * registered in the runtime doing the AOT compilation.
7696 if (!piinfo->addr && !aot) {
7698 mono_mb_emit_exception (mb, exc_class, exc_arg);
7700 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7701 info->d.managed_to_native.method = method;
7703 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7705 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7706 csig->param_count + 16, info, NULL);
7712 /* internal calls: we simply push all arguments and call the method (no conversions) */
7713 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7715 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7717 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7719 /* hack - string constructors returns a value */
7720 if (method->string_ctor)
7721 csig->ret = &mono_defaults.string_class->byval_arg;
7728 * Add a null check since public icalls can be called with 'call' which
7729 * does no such check.
7731 mono_mb_emit_byte (mb, CEE_LDARG_0);
7732 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7733 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7734 mono_mb_patch_branch (mb, pos);
7736 mono_mb_emit_byte (mb, CEE_LDARG_0);
7739 for (i = 0; i < sig->param_count; i++)
7740 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7743 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7744 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7745 mono_mb_emit_calli (mb, csig);
7747 g_assert (piinfo->addr);
7748 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7750 if (check_exceptions)
7751 emit_thread_interrupt_checkpoint (mb);
7752 mono_mb_emit_byte (mb, CEE_RET);
7754 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7755 info->d.managed_to_native.method = method;
7757 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7759 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7768 g_assert (piinfo->addr);
7771 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7772 mono_method_get_marshal_info (method, mspecs);
7774 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7777 info->d.managed_to_native.method = method;
7779 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7781 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7786 for (i = sig->param_count; i >= 0; i--)
7788 mono_metadata_free_marshal_spec (mspecs [i]);
7792 /* mono_method_print_code (res); */
7798 * mono_marshal_get_native_func_wrapper:
7799 * @image: The image to use for memory allocation and for looking up custom marshallers.
7800 * @sig: The signature of the function
7801 * @func: The native function to wrap
7803 * Returns a wrapper method around native functions, similar to the pinvoke
7807 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7808 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7810 MonoMethodSignature *csig;
7812 SignaturePointerPair key, *new_key;
7813 MonoMethodBuilder *mb;
7822 // Generic types are not safe to place in MonoImage caches.
7823 g_assert (!sig->is_inflated);
7825 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7826 if ((res = mono_marshal_find_in_cache (cache, &key)))
7829 name = g_strdup_printf ("wrapper_native_%p", func);
7830 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7831 mb->method->save_lmf = 1;
7834 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7837 csig = mono_metadata_signature_dup_full (image, sig);
7840 new_key = g_new (SignaturePointerPair,1);
7841 new_key->sig = csig;
7842 new_key->pointer = func;
7844 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7850 mono_marshal_set_wrapper_info (res, NULL);
7856 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7860 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7862 MonoMethodSignature *sig, *csig;
7863 MonoMethodBuilder *mb;
7868 MonoMethodPInvoke mpiinfo;
7869 MonoMethodPInvoke *piinfo = &mpiinfo;
7870 MonoMarshalSpec **mspecs;
7871 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7872 MonoImage *image = invoke->klass->image;
7875 // FIXME: include UnmanagedFunctionPointerAttribute info
7878 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7880 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7882 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7885 memset (&mpiinfo, 0, sizeof (mpiinfo));
7886 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7888 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7889 mono_method_get_marshal_info (invoke, mspecs);
7890 /* Freed below so don't alloc from mempool */
7891 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7894 name = g_strdup_printf ("wrapper_aot_native");
7895 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7896 mb->method->save_lmf = 1;
7899 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7902 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7903 info->d.managed_to_native.method = invoke;
7905 g_assert (!sig->hasthis);
7906 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7908 res = mono_mb_create_and_cache_full (cache, invoke,
7909 mb, csig, csig->param_count + 16,
7913 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7915 mono_metadata_free_marshal_spec (mspecs [i]);
7923 * mono_marshal_emit_managed_wrapper:
7925 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7926 * the delegate which wraps the managed method to be called. For closed delegates,
7927 * it could have fewer parameters than the method it wraps.
7928 * THIS_LOC is the memory location where the target of the delegate is stored.
7931 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7934 MonoMethodSignature *sig, *csig;
7940 /* we first do all conversions */
7941 for (i = 0; i < sig->param_count; i ++) {
7942 MonoType *t = sig->params [i];
7945 case MONO_TYPE_OBJECT:
7946 case MONO_TYPE_CLASS:
7947 case MONO_TYPE_VALUETYPE:
7948 case MONO_TYPE_ARRAY:
7949 case MONO_TYPE_SZARRAY:
7950 case MONO_TYPE_STRING:
7951 case MONO_TYPE_BOOLEAN:
7952 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7956 if (!sig->ret->byref) {
7957 switch (sig->ret->type) {
7958 case MONO_TYPE_STRING:
7959 csig->ret = &mono_defaults.int_class->byval_arg;
7966 MonoMethodSignature *sig, *csig;
7967 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7968 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7969 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7970 gboolean closed = FALSE;
7975 /* allocate local 0 (pointer) src_ptr */
7976 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7977 /* allocate local 1 (pointer) dst_ptr */
7978 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7979 /* allocate local 2 (boolean) delete_old */
7980 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7982 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7983 /* Closed delegate */
7984 g_assert (sig->param_count == invoke_sig->param_count + 1);
7986 /* Use a new signature without the first argument */
7987 sig = mono_metadata_signature_dup (sig);
7988 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7989 sig->param_count --;
7992 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7993 /* allocate local 3 to store the return value */
7994 mono_mb_add_local (mb, sig->ret);
7997 if (MONO_TYPE_ISSTRUCT (sig->ret))
7998 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8000 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8001 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8003 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8004 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8009 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8010 * mono_threads_attach_coop ();
8014 * ret = method (...);
8015 * } catch (Exception e) {
8016 * ex = mono_gchandle_new (e, false);
8018 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8019 * mono_threads_detach_coop ();
8022 * mono_marshal_ftnptr_eh_callback (ex);
8028 clauses = g_new0 (MonoExceptionClause, 2);
8030 clause_catch = &clauses [0];
8031 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8032 clause_catch->data.catch_class = mono_defaults.exception_class;
8034 clause_finally = &clauses [1];
8035 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8037 mono_mb_emit_icon (mb, 0);
8038 mono_mb_emit_stloc (mb, 2);
8040 mono_mb_emit_icon (mb, -1);
8041 mono_mb_emit_byte (mb, CEE_CONV_U4);
8042 mono_mb_emit_stloc (mb, ex_local);
8045 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8047 if (!mono_threads_is_coop_enabled ()) {
8048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8049 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8051 /* mono_threads_attach_coop (); */
8052 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8053 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8054 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8055 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8056 mono_mb_emit_stloc (mb, attach_cookie_local);
8059 /* <interrupt check> */
8060 emit_thread_interrupt_checkpoint (mb);
8062 /* we first do all conversions */
8063 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8064 for (i = 0; i < sig->param_count; i ++) {
8065 MonoType *t = sig->params [i];
8068 case MONO_TYPE_OBJECT:
8069 case MONO_TYPE_CLASS:
8070 case MONO_TYPE_VALUETYPE:
8071 case MONO_TYPE_ARRAY:
8072 case MONO_TYPE_SZARRAY:
8073 case MONO_TYPE_STRING:
8074 case MONO_TYPE_BOOLEAN:
8075 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8085 if (target_handle) {
8086 mono_mb_emit_icon (mb, (gint32)target_handle);
8087 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8090 g_assert_not_reached ();
8092 } else if (closed) {
8093 mono_mb_emit_icon (mb, (gint32)target_handle);
8094 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8097 for (i = 0; i < sig->param_count; i++) {
8098 MonoType *t = sig->params [i];
8100 if (tmp_locals [i]) {
8102 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8104 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8107 mono_mb_emit_ldarg (mb, i);
8110 /* ret = method (...) */
8111 mono_mb_emit_managed_call (mb, method, NULL);
8113 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8114 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8115 mono_class_init (klass);
8116 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8117 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8118 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8119 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8120 mono_mb_emit_stloc (mb, m->vtaddr_var);
8124 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8125 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8126 } else if (!sig->ret->byref) {
8127 switch (sig->ret->type) {
8128 case MONO_TYPE_VOID:
8130 case MONO_TYPE_BOOLEAN:
8133 case MONO_TYPE_CHAR:
8145 case MONO_TYPE_OBJECT:
8146 mono_mb_emit_stloc (mb, 3);
8148 case MONO_TYPE_STRING:
8149 csig->ret = &mono_defaults.int_class->byval_arg;
8150 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8152 case MONO_TYPE_VALUETYPE:
8153 case MONO_TYPE_CLASS:
8154 case MONO_TYPE_SZARRAY:
8155 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8158 g_warning ("return type 0x%02x unknown", sig->ret->type);
8159 g_assert_not_reached ();
8162 mono_mb_emit_stloc (mb, 3);
8165 /* Convert byref arguments back */
8166 for (i = 0; i < sig->param_count; i ++) {
8167 MonoType *t = sig->params [i];
8168 MonoMarshalSpec *spec = mspecs [i + 1];
8170 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8171 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8173 else if (t->byref) {
8175 case MONO_TYPE_CLASS:
8176 case MONO_TYPE_VALUETYPE:
8177 case MONO_TYPE_OBJECT:
8178 case MONO_TYPE_STRING:
8179 case MONO_TYPE_BOOLEAN:
8180 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8186 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8187 /* The [Out] information is encoded in the delegate signature */
8189 case MONO_TYPE_SZARRAY:
8190 case MONO_TYPE_CLASS:
8191 case MONO_TYPE_VALUETYPE:
8192 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8195 g_assert_not_reached ();
8200 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8204 /* catch (Exception e) { */
8205 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8206 clause_catch->handler_offset = mono_mb_get_label (mb);
8208 mono_mb_emit_stloc (mb, e_local);
8210 /* ex = mono_gchandle_new (e, false); */
8211 mono_mb_emit_ldloc (mb, e_local);
8212 mono_mb_emit_icon (mb, 0);
8213 mono_mb_emit_icall (mb, mono_gchandle_new);
8214 mono_mb_emit_stloc (mb, ex_local);
8216 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8219 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8222 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8223 clause_finally->handler_offset = mono_mb_get_label (mb);
8225 if (!mono_threads_is_coop_enabled ()) {
8226 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8227 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8229 /* mono_threads_detach_coop (); */
8230 mono_mb_emit_ldloc (mb, attach_cookie_local);
8231 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8232 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8236 mono_mb_emit_ldloc (mb, ex_local);
8237 mono_mb_emit_icon (mb, -1);
8238 mono_mb_emit_byte (mb, CEE_CONV_U4);
8239 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8241 /* mono_marshal_ftnptr_eh_callback (ex) */
8242 mono_mb_emit_ldloc (mb, ex_local);
8243 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8246 mono_mb_patch_branch (mb, ex_m1_pos);
8248 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8250 /* } [endfinally] */
8251 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8253 mono_mb_patch_branch (mb, leave_try_pos);
8254 mono_mb_patch_branch (mb, leave_catch_pos);
8257 if (m->retobj_var) {
8258 mono_mb_emit_ldloc (mb, m->retobj_var);
8259 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8260 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8263 if (!MONO_TYPE_IS_VOID(sig->ret))
8264 mono_mb_emit_ldloc (mb, 3);
8265 mono_mb_emit_byte (mb, CEE_RET);
8268 mono_mb_set_clauses (mb, 2, clauses);
8276 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8278 MonoMethodSignature *sig;
8283 * Under windows, delegates passed to native code must use the STDCALL
8284 * calling convention.
8286 csig->call_convention = MONO_CALL_STDCALL;
8289 sig = mono_method_signature (method);
8291 /* Change default calling convention if needed */
8292 /* Why is this a modopt ? */
8293 if (sig->ret && sig->ret->num_mods) {
8294 for (i = 0; i < sig->ret->num_mods; ++i) {
8296 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8297 g_assert (mono_error_ok (&error));
8298 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8299 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8300 csig->call_convention = MONO_CALL_C;
8301 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8302 csig->call_convention = MONO_CALL_STDCALL;
8303 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8304 csig->call_convention = MONO_CALL_FASTCALL;
8305 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8306 csig->call_convention = MONO_CALL_THISCALL;
8313 * generates IL code to call managed methods from unmanaged code
8314 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8317 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8320 MonoMethodSignature *sig, *csig, *invoke_sig;
8321 MonoMethodBuilder *mb;
8322 MonoMethod *res, *invoke;
8323 MonoMarshalSpec **mspecs;
8324 MonoMethodPInvoke piinfo;
8327 EmitMarshalContext m;
8329 g_assert (method != NULL);
8330 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8333 * FIXME: Should cache the method+delegate type pair, since the same method
8334 * could be called with different delegates, thus different marshalling
8337 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8339 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8342 invoke = mono_get_delegate_invoke (delegate_klass);
8343 invoke_sig = mono_method_signature (invoke);
8345 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8346 mono_method_get_marshal_info (invoke, mspecs);
8348 sig = mono_method_signature (method);
8350 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8352 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8353 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8355 /* we copy the signature, so that we can modify it */
8357 /* Need to free this later */
8358 csig = mono_metadata_signature_dup (invoke_sig);
8360 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8364 memset (&m, 0, sizeof (m));
8370 m.image = method->klass->image;
8372 mono_marshal_set_callconv_from_modopt (invoke, csig);
8374 /* The attribute is only available in Net 2.0 */
8375 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8376 MonoCustomAttrInfo *cinfo;
8377 MonoCustomAttrEntry *attr;
8380 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8381 * contents of the attribute without constructing it, as that might not be
8382 * possible when running in cross-compiling mode.
8384 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8385 mono_error_assert_ok (&error);
8388 for (i = 0; i < cinfo->num_attrs; ++i) {
8389 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8390 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8391 attr = &cinfo->attrs [i];
8397 MonoArray *typed_args, *named_args;
8398 CattrNamedArg *arginfo;
8402 MonoBoolean set_last_error = 0;
8405 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8406 g_assert (mono_error_ok (&error));
8407 g_assert (mono_array_length (typed_args) == 1);
8410 o = mono_array_get (typed_args, MonoObject*, 0);
8411 call_conv = *(gint32*)mono_object_unbox (o);
8414 for (i = 0; i < mono_array_length (named_args); ++i) {
8415 CattrNamedArg *narg = &arginfo [i];
8417 o = mono_array_get (named_args, MonoObject*, i);
8419 g_assert (narg->field);
8420 if (!strcmp (narg->field->name, "CharSet")) {
8421 charset = *(gint32*)mono_object_unbox (o);
8422 } else if (!strcmp (narg->field->name, "SetLastError")) {
8423 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8424 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8425 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8426 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8427 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8429 g_assert_not_reached ();
8435 memset (&piinfo, 0, sizeof (piinfo));
8437 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8439 csig->call_convention = call_conv - 1;
8442 if (cinfo && !cinfo->cached)
8443 mono_custom_attrs_free (cinfo);
8446 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8448 if (!target_handle) {
8451 // FIXME: Associate it with the method+delegate_klass pair
8452 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8453 info->d.native_to_managed.method = method;
8454 info->d.native_to_managed.klass = delegate_klass;
8456 res = mono_mb_create_and_cache_full (cache, method,
8457 mb, csig, sig->param_count + 16,
8463 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8467 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8469 mono_metadata_free_marshal_spec (mspecs [i]);
8472 /* mono_method_print_code (res); */
8478 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8482 MonoMethodSignature *sig;
8483 MonoMethodBuilder *mb;
8488 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8490 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8493 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8494 MonoMethodSignature *csig;
8495 MonoMarshalSpec **mspecs;
8496 EmitMarshalContext m;
8498 sig = mono_method_signature (method);
8499 g_assert (!sig->hasthis);
8501 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8502 mono_method_get_marshal_info (method, mspecs);
8504 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8505 csig = mono_metadata_signature_dup_full (image, sig);
8509 memset (&m, 0, sizeof (m));
8517 mono_marshal_set_callconv_from_modopt (method, csig);
8519 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8521 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8526 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8529 for (i = sig->param_count; i >= 0; i--)
8531 mono_metadata_free_marshal_spec (mspecs [i]);
8534 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8535 mono_error_assert_ok (&error);
8536 return compiled_ptr;
8539 sig = mono_method_signature (method);
8540 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8542 param_count = sig->param_count + sig->hasthis;
8544 for (i = 0; i < param_count; i++)
8545 mono_mb_emit_ldarg (mb, i);
8547 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8548 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8550 mono_mb_emit_op (mb, CEE_CALL, method);
8551 mono_mb_emit_byte (mb, CEE_RET);
8556 method = mono_mb_create (mb, sig, param_count, NULL);
8559 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8560 mono_error_assert_ok (&error);
8561 return compiled_ptr;
8567 * The code directly following this is the cache hit, value positive branch
8569 * This function takes a new method builder with 0 locals and adds two locals
8570 * to create multiple out-branches and the fall through state of having the object
8571 * on the stack after a cache miss
8574 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8575 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8576 MonoMethodBuilder *mb)
8580 /* allocate local 0 (pointer) obj_vtable */
8581 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8582 /* allocate local 1 (pointer) cached_vtable */
8583 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8586 mono_mb_emit_ldarg (mb, obj_arg_position);
8587 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8589 /*obj_vtable = obj->vtable;*/
8590 mono_mb_emit_ldarg (mb, obj_arg_position);
8591 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8592 mono_mb_emit_byte (mb, CEE_LDIND_I);
8593 mono_mb_emit_stloc (mb, 0);
8595 /* cached_vtable = *cache*/
8596 mono_mb_emit_ldarg (mb, cache_arg_position);
8597 mono_mb_emit_byte (mb, CEE_LDIND_I);
8598 mono_mb_emit_stloc (mb, 1);
8600 mono_mb_emit_ldloc (mb, 1);
8601 mono_mb_emit_byte (mb, CEE_LDC_I4);
8602 mono_mb_emit_i4 (mb, ~0x1);
8603 mono_mb_emit_byte (mb, CEE_CONV_I);
8604 mono_mb_emit_byte (mb, CEE_AND);
8605 mono_mb_emit_ldloc (mb, 0);
8606 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8607 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8609 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8610 mono_mb_emit_ldloc (mb, 1);
8611 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8612 mono_mb_emit_byte (mb, CEE_CONV_U);
8613 mono_mb_emit_byte (mb, CEE_AND);
8614 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8615 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8618 mono_mb_patch_branch (mb, cache_miss_pos);
8621 mono_mb_emit_ldarg (mb, obj_arg_position);
8622 mono_mb_emit_ldarg (mb, class_arg_position);
8623 mono_mb_emit_ldarg (mb, cache_arg_position);
8624 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8627 #endif /* DISABLE_JIT */
8630 * This does the equivalent of mono_object_castclass_with_cache.
8631 * The wrapper info for the wrapper is a WrapperInfo structure.
8634 mono_marshal_get_castclass_with_cache (void)
8636 static MonoMethod *cached;
8638 MonoMethodBuilder *mb;
8639 MonoMethodSignature *sig;
8640 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8643 const int obj_arg_position = 0;
8644 const int class_arg_position = 1;
8645 const int cache_arg_position = 2;
8650 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8651 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8652 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8653 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8654 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8655 sig->ret = &mono_defaults.object_class->byval_arg;
8659 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8660 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8661 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8664 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8665 mono_mb_emit_ldarg (mb, obj_arg_position);
8666 mono_mb_emit_byte (mb, CEE_RET);
8669 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8670 mono_mb_patch_branch (mb, invalid_cast_pos);
8671 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8674 mono_mb_patch_branch (mb, return_null_pos);
8675 mono_mb_emit_byte (mb, CEE_LDNULL);
8676 mono_mb_emit_byte (mb, CEE_RET);
8677 #endif /* DISABLE_JIT */
8679 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8680 res = mono_mb_create (mb, sig, 8, info);
8683 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8684 mono_free_method (res);
8685 mono_metadata_free_method_signature (sig);
8692 /* this is an icall */
8694 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8697 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8698 if (mono_error_set_pending_exception (&error))
8701 #ifndef DISABLE_REMOTING
8702 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8706 uintptr_t cache_update = (uintptr_t)obj->vtable;
8708 cache_update = cache_update | 0x1;
8710 *cache = cache_update;
8716 * This does the equivalent of mono_object_isinst_with_cache.
8717 * The wrapper info for the wrapper is a WrapperInfo structure.
8720 mono_marshal_get_isinst_with_cache (void)
8722 static MonoMethod *cached;
8724 MonoMethodBuilder *mb;
8725 MonoMethodSignature *sig;
8726 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8729 const int obj_arg_position = 0;
8730 const int class_arg_position = 1;
8731 const int cache_arg_position = 2;
8736 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8737 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8739 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8741 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8743 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8744 sig->ret = &mono_defaults.object_class->byval_arg;
8748 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8749 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8750 // Return the object gotten via the slow path.
8751 mono_mb_emit_byte (mb, CEE_RET);
8754 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8755 mono_mb_patch_branch (mb, return_null_pos);
8756 mono_mb_emit_byte (mb, CEE_LDNULL);
8757 mono_mb_emit_byte (mb, CEE_RET);
8760 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8761 mono_mb_emit_ldarg (mb, obj_arg_position);
8762 mono_mb_emit_byte (mb, CEE_RET);
8765 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8766 res = mono_mb_create (mb, sig, 8, info);
8769 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8770 mono_free_method (res);
8771 mono_metadata_free_method_signature (sig);
8779 * mono_marshal_get_isinst:
8780 * @klass: the type of the field
8782 * This method generates a function which can be used to check if an object is
8783 * an instance of the given type, icluding the case where the object is a proxy.
8784 * The generated function has the following signature:
8785 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8788 mono_marshal_get_isinst (MonoClass *klass)
8790 static MonoMethodSignature *isint_sig = NULL;
8794 int pos_was_ok, pos_end;
8795 #ifndef DISABLE_REMOTING
8796 int pos_end2, pos_failed;
8799 MonoMethodBuilder *mb;
8801 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8802 if ((res = mono_marshal_find_in_cache (cache, klass)))
8806 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8807 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8808 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8809 isint_sig->pinvoke = 0;
8812 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8813 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8816 mb->method->save_lmf = 1;
8819 /* check if the object is a proxy that needs special cast */
8820 mono_mb_emit_ldarg (mb, 0);
8821 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8822 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8824 /* The result of MONO_CISINST can be:
8825 0) the type check succeeded
8826 1) the type check did not succeed
8827 2) a CanCastTo call is needed */
8828 #ifndef DISABLE_REMOTING
8829 mono_mb_emit_byte (mb, CEE_DUP);
8830 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8832 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8833 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8835 /* get the real proxy from the transparent proxy*/
8837 mono_mb_emit_ldarg (mb, 0);
8838 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8839 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8843 mono_mb_patch_branch (mb, pos_failed);
8844 mono_mb_emit_byte (mb, CEE_LDNULL);
8845 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8849 mono_mb_patch_branch (mb, pos_was_ok);
8850 mono_mb_emit_byte (mb, CEE_POP);
8851 mono_mb_emit_ldarg (mb, 0);
8855 mono_mb_patch_branch (mb, pos_end);
8856 mono_mb_patch_branch (mb, pos_end2);
8857 mono_mb_emit_byte (mb, CEE_RET);
8859 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8863 mono_mb_emit_byte (mb, CEE_LDNULL);
8864 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8868 mono_mb_patch_branch (mb, pos_was_ok);
8869 mono_mb_emit_ldarg (mb, 0);
8873 mono_mb_patch_branch (mb, pos_end);
8874 mono_mb_emit_byte (mb, CEE_RET);
8875 #endif /* DISABLE_REMOTING */
8876 #endif /* DISABLE_JIT */
8878 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8879 info->d.proxy.klass = klass;
8880 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8887 * mono_marshal_get_castclass:
8888 * @klass: the type of the field
8890 * This method generates a function which can be used to cast an object to
8891 * an instance of the given type, icluding the case where the object is a proxy.
8892 * The generated function has the following signature:
8893 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8894 * The wrapper info for the wrapper is a WrapperInfo structure.
8897 mono_marshal_get_castclass (MonoClass *klass)
8899 static MonoMethodSignature *castclass_sig = NULL;
8902 #ifndef DISABLE_REMOTING
8903 int pos_was_ok, pos_was_ok2;
8906 MonoMethodBuilder *mb;
8909 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8910 if ((res = mono_marshal_find_in_cache (cache, klass)))
8913 if (!castclass_sig) {
8914 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8915 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8916 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8917 castclass_sig->pinvoke = 0;
8920 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8921 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8924 mb->method->save_lmf = 1;
8927 /* check if the object is a proxy that needs special cast */
8928 mono_mb_emit_ldarg (mb, 0);
8929 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8930 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8932 /* The result of MONO_CCASTCLASS can be:
8933 0) the cast is valid
8934 1) cast of unknown proxy type
8935 or an exception if the cast is is invalid
8937 #ifndef DISABLE_REMOTING
8938 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8940 /* get the real proxy from the transparent proxy*/
8942 mono_mb_emit_ldarg (mb, 0);
8943 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8944 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8947 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8950 mono_mb_patch_branch (mb, pos_was_ok);
8951 mono_mb_patch_branch (mb, pos_was_ok2);
8953 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8954 mono_mb_emit_byte (mb, CEE_POP);
8955 #endif /* DISABLE_REMOTING */
8957 mono_mb_emit_ldarg (mb, 0);
8960 mono_mb_emit_byte (mb, CEE_RET);
8961 #endif /* DISABLE_JIT */
8963 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8965 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8973 * mono_marshal_get_struct_to_ptr:
8976 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8977 * The wrapper info for the wrapper is a WrapperInfo structure.
8980 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8982 MonoMethodBuilder *mb;
8983 static MonoMethod *stoptr = NULL;
8987 g_assert (klass != NULL);
8989 mono_marshal_load_type_info (klass);
8991 if (klass->marshal_info->str_to_ptr)
8992 return klass->marshal_info->str_to_ptr;
8995 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8998 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9001 if (klass->blittable) {
9002 mono_mb_emit_byte (mb, CEE_LDARG_1);
9003 mono_mb_emit_byte (mb, CEE_LDARG_0);
9004 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9005 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9006 mono_mb_emit_byte (mb, CEE_PREFIX1);
9007 mono_mb_emit_byte (mb, CEE_CPBLK);
9010 /* allocate local 0 (pointer) src_ptr */
9011 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9012 /* allocate local 1 (pointer) dst_ptr */
9013 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9014 /* allocate local 2 (boolean) delete_old */
9015 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9016 mono_mb_emit_byte (mb, CEE_LDARG_2);
9017 mono_mb_emit_stloc (mb, 2);
9019 /* initialize src_ptr to point to the start of object data */
9020 mono_mb_emit_byte (mb, CEE_LDARG_0);
9021 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9022 mono_mb_emit_stloc (mb, 0);
9024 /* initialize dst_ptr */
9025 mono_mb_emit_byte (mb, CEE_LDARG_1);
9026 mono_mb_emit_stloc (mb, 1);
9028 emit_struct_conv (mb, klass, FALSE);
9031 mono_mb_emit_byte (mb, CEE_RET);
9033 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9034 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9037 mono_marshal_lock ();
9038 if (!klass->marshal_info->str_to_ptr)
9039 klass->marshal_info->str_to_ptr = res;
9041 res = klass->marshal_info->str_to_ptr;
9042 mono_marshal_unlock ();
9047 * mono_marshal_get_ptr_to_struct:
9050 * generates IL code for PtrToStructure (IntPtr src, object structure)
9051 * The wrapper info for the wrapper is a WrapperInfo structure.
9054 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9056 MonoMethodBuilder *mb;
9057 static MonoMethodSignature *ptostr = NULL;
9061 g_assert (klass != NULL);
9063 mono_marshal_load_type_info (klass);
9065 if (klass->marshal_info->ptr_to_str)
9066 return klass->marshal_info->ptr_to_str;
9069 MonoMethodSignature *sig;
9071 /* Create the signature corresponding to
9072 static void PtrToStructure (IntPtr ptr, object structure);
9073 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9074 sig = mono_create_icall_signature ("void ptr object");
9075 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9077 mono_memory_barrier ();
9081 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9084 if (klass->blittable) {
9085 mono_mb_emit_byte (mb, CEE_LDARG_1);
9086 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9087 mono_mb_emit_byte (mb, CEE_LDARG_0);
9088 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9089 mono_mb_emit_byte (mb, CEE_PREFIX1);
9090 mono_mb_emit_byte (mb, CEE_CPBLK);
9093 /* allocate local 0 (pointer) src_ptr */
9094 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9095 /* allocate local 1 (pointer) dst_ptr */
9096 mono_mb_add_local (mb, &klass->this_arg);
9098 /* initialize src_ptr to point to the start of object data */
9099 mono_mb_emit_byte (mb, CEE_LDARG_0);
9100 mono_mb_emit_stloc (mb, 0);
9102 /* initialize dst_ptr */
9103 mono_mb_emit_byte (mb, CEE_LDARG_1);
9104 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9105 mono_mb_emit_stloc (mb, 1);
9107 emit_struct_conv (mb, klass, TRUE);
9110 mono_mb_emit_byte (mb, CEE_RET);
9112 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9113 res = mono_mb_create (mb, ptostr, 0, info);
9116 mono_marshal_lock ();
9117 if (!klass->marshal_info->ptr_to_str)
9118 klass->marshal_info->ptr_to_str = res;
9120 res = klass->marshal_info->ptr_to_str;
9121 mono_marshal_unlock ();
9126 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9127 * This is used to avoid infinite recursion since it is hard to determine where to
9128 * replace a method with its synchronized wrapper, and where not.
9129 * The runtime should execute METHOD instead of the wrapper.
9130 * The wrapper info for the wrapper is a WrapperInfo structure.
9133 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9135 MonoMethodBuilder *mb;
9137 MonoMethodSignature *sig;
9139 MonoGenericContext *ctx = NULL;
9140 MonoGenericContainer *container = NULL;
9142 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9143 ctx = &((MonoMethodInflated*)method)->context;
9144 method = ((MonoMethodInflated*)method)->declaring;
9145 container = mono_method_get_generic_container (method);
9147 container = method->klass->generic_container;
9148 g_assert (container);
9151 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9153 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9154 mono_mb_emit_byte (mb, CEE_RET);
9156 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9158 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9159 info->d.synchronized_inner.method = method;
9160 res = mono_mb_create (mb, sig, 0, info);
9164 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9165 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9171 * generates IL code for the synchronized wrapper: the generated method
9172 * calls METHOD while locking 'this' or the parent type.
9175 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9177 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9178 MonoMethodSignature *sig;
9179 MonoExceptionClause *clause;
9180 MonoMethodBuilder *mb;
9184 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9185 MonoGenericContext *ctx = NULL;
9186 MonoMethod *orig_method = NULL;
9187 MonoGenericContainer *container = NULL;
9191 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9194 /* FIXME: Support generic methods too */
9195 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9196 orig_method = method;
9197 ctx = &((MonoMethodInflated*)method)->context;
9198 method = ((MonoMethodInflated*)method)->declaring;
9199 container = mono_method_get_generic_container (method);
9201 container = method->klass->generic_container;
9202 g_assert (container);
9209 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9210 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9214 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9215 if ((res = mono_marshal_find_in_cache (cache, method)))
9219 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9222 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9224 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9225 info->d.synchronized.method = method;
9228 mb->skip_visibility = 1;
9230 if (!MONO_TYPE_IS_VOID (sig->ret))
9231 ret_local = mono_mb_add_local (mb, sig->ret);
9234 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9235 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9237 /* This will throw the type load exception when the wrapper is compiled */
9238 mono_mb_emit_byte (mb, CEE_LDNULL);
9239 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9240 mono_mb_emit_byte (mb, CEE_POP);
9242 if (!MONO_TYPE_IS_VOID (sig->ret))
9243 mono_mb_emit_ldloc (mb, ret_local);
9244 mono_mb_emit_byte (mb, CEE_RET);
9247 res = mono_mb_create_and_cache_full (cache, method,
9248 mb, sig, sig->param_count + 16, info, NULL);
9256 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9257 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9259 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9260 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9263 mono_marshal_lock ();
9265 if (!enter_method) {
9266 MonoMethodDesc *desc;
9268 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9269 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9270 g_assert (enter_method);
9271 mono_method_desc_free (desc);
9273 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9274 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9275 g_assert (exit_method);
9276 mono_method_desc_free (desc);
9278 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9279 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9280 g_assert (gettypefromhandle_method);
9281 mono_method_desc_free (desc);
9284 mono_marshal_unlock ();
9287 /* Push this or the type object */
9288 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9289 /* We have special handling for this in the JIT */
9290 int index = mono_mb_add_data (mb, method->klass);
9291 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9292 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9293 mono_mb_emit_i4 (mb, index);
9295 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9298 mono_mb_emit_ldarg (mb, 0);
9299 mono_mb_emit_stloc (mb, this_local);
9301 /* Call Monitor::Enter() */
9302 mono_mb_emit_ldloc (mb, this_local);
9303 mono_mb_emit_ldloc_addr (mb, taken_local);
9304 mono_mb_emit_managed_call (mb, enter_method, NULL);
9306 clause->try_offset = mono_mb_get_label (mb);
9308 /* Call the method */
9310 mono_mb_emit_ldarg (mb, 0);
9311 for (i = 0; i < sig->param_count; i++)
9312 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9316 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9317 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9319 mono_mb_emit_managed_call (mb, method, NULL);
9322 if (!MONO_TYPE_IS_VOID (sig->ret))
9323 mono_mb_emit_stloc (mb, ret_local);
9325 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9327 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9328 clause->handler_offset = mono_mb_get_label (mb);
9330 /* Call Monitor::Exit() if needed */
9331 mono_mb_emit_ldloc (mb, taken_local);
9332 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9333 mono_mb_emit_ldloc (mb, this_local);
9334 mono_mb_emit_managed_call (mb, exit_method, NULL);
9335 mono_mb_patch_branch (mb, pos2);
9336 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9338 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9340 mono_mb_patch_branch (mb, pos);
9341 if (!MONO_TYPE_IS_VOID (sig->ret))
9342 mono_mb_emit_ldloc (mb, ret_local);
9343 mono_mb_emit_byte (mb, CEE_RET);
9345 mono_mb_set_clauses (mb, 1, clause);
9350 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9351 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9353 res = mono_mb_create_and_cache_full (cache, method,
9354 mb, sig, sig->param_count + 16, info, NULL);
9363 * the returned method calls 'method' unboxing the this argument
9366 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9368 MonoMethodSignature *sig = mono_method_signature (method);
9370 MonoMethodBuilder *mb;
9375 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9377 if ((res = mono_marshal_find_in_cache (cache, method)))
9380 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9382 g_assert (sig->hasthis);
9385 mono_mb_emit_ldarg (mb, 0);
9386 mono_mb_emit_icon (mb, sizeof (MonoObject));
9387 mono_mb_emit_byte (mb, CEE_ADD);
9388 for (i = 0; i < sig->param_count; ++i)
9389 mono_mb_emit_ldarg (mb, i + 1);
9390 mono_mb_emit_managed_call (mb, method, NULL);
9391 mono_mb_emit_byte (mb, CEE_RET);
9394 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9395 info->d.unbox.method = method;
9397 res = mono_mb_create_and_cache_full (cache, method,
9398 mb, sig, sig->param_count + 16, info, NULL);
9401 /* mono_method_print_code (res); */
9407 STELEMREF_OBJECT, /*no check at all*/
9408 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9409 STELEMREF_CLASS, /*only the klass->parents check*/
9410 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9411 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9412 STELEMREF_KIND_COUNT
9415 static const char *strelemref_wrapper_name[] = {
9416 "object", "sealed_class", "class", "interface", "complex"
9420 is_monomorphic_array (MonoClass *klass)
9422 MonoClass *element_class;
9423 if (klass->rank != 1)
9426 element_class = klass->element_class;
9427 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9431 get_virtual_stelemref_kind (MonoClass *element_class)
9433 if (element_class == mono_defaults.object_class)
9434 return STELEMREF_OBJECT;
9435 if (is_monomorphic_array (element_class))
9436 return STELEMREF_SEALED_CLASS;
9437 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9438 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9439 #ifdef COMPRESSED_INTERFACE_BITMAP
9440 return STELEMREF_COMPLEX;
9442 return STELEMREF_INTERFACE;
9444 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9445 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9446 return STELEMREF_COMPLEX;
9447 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9448 return STELEMREF_SEALED_CLASS;
9449 return STELEMREF_CLASS;
9455 load_array_element_address (MonoMethodBuilder *mb)
9457 mono_mb_emit_ldarg (mb, 0);
9458 mono_mb_emit_ldarg (mb, 1);
9459 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9463 load_array_class (MonoMethodBuilder *mb, int aklass)
9465 mono_mb_emit_ldarg (mb, 0);
9466 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9467 mono_mb_emit_byte (mb, CEE_LDIND_I);
9468 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9469 mono_mb_emit_byte (mb, CEE_LDIND_I);
9470 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9471 mono_mb_emit_byte (mb, CEE_LDIND_I);
9472 mono_mb_emit_stloc (mb, aklass);
9476 load_value_class (MonoMethodBuilder *mb, int vklass)
9478 mono_mb_emit_ldarg (mb, 2);
9479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9480 mono_mb_emit_byte (mb, CEE_LDIND_I);
9481 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9482 mono_mb_emit_byte (mb, CEE_LDIND_I);
9483 mono_mb_emit_stloc (mb, vklass);
9489 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9491 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9492 printf ("slow vstore of %s\n", name);
9498 * The wrapper info for the wrapper is a WrapperInfo structure.
9501 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9502 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9503 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9504 * - Add a case for arrays of arrays.
9507 get_virtual_stelemref_wrapper (int kind)
9509 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9510 static MonoMethodSignature *signature;
9511 MonoMethodBuilder *mb;
9514 const char *param_names [16];
9516 int aklass, vklass, vtable, uiid;
9517 int array_slot_addr;
9520 if (cached_methods [kind])
9521 return cached_methods [kind];
9523 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9524 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9528 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9530 /* void this::stelemref (size_t idx, void* value) */
9531 sig->ret = &mono_defaults.void_class->byval_arg;
9532 sig->hasthis = TRUE;
9533 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9534 sig->params [1] = &mono_defaults.object_class->byval_arg;
9539 param_names [0] = "index";
9540 param_names [1] = "value";
9541 mono_mb_set_param_names (mb, param_names);
9543 /*For now simply call plain old stelemref*/
9545 case STELEMREF_OBJECT:
9546 /* ldelema (implicit bound check) */
9547 load_array_element_address (mb);
9549 mono_mb_emit_ldarg (mb, 2);
9550 mono_mb_emit_byte (mb, CEE_STIND_REF);
9551 mono_mb_emit_byte (mb, CEE_RET);
9554 case STELEMREF_COMPLEX:
9556 <ldelema (bound check)>
9559 if (!mono_object_isinst (value, aklass))
9563 *array_slot_addr = value;
9566 throw new ArrayTypeMismatchException ();
9569 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9570 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9574 /*Use this to debug/record stores that are going thru the slow path*/
9575 MonoMethodSignature *csig;
9576 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9577 csig->ret = &mono_defaults.void_class->byval_arg;
9578 csig->params [0] = &mono_defaults.object_class->byval_arg;
9579 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9580 csig->params [2] = &mono_defaults.object_class->byval_arg;
9581 mono_mb_emit_ldarg (mb, 0);
9582 mono_mb_emit_ldarg (mb, 1);
9583 mono_mb_emit_ldarg (mb, 2);
9584 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9588 /* ldelema (implicit bound check) */
9589 load_array_element_address (mb);
9590 mono_mb_emit_stloc (mb, array_slot_addr);
9592 /* if (!value) goto do_store */
9593 mono_mb_emit_ldarg (mb, 2);
9594 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9596 /* aklass = array->vtable->klass->element_class */
9597 load_array_class (mb, aklass);
9599 /*if (mono_object_isinst (value, aklass)) */
9600 mono_mb_emit_ldarg (mb, 2);
9601 mono_mb_emit_ldloc (mb, aklass);
9602 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9603 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9606 mono_mb_patch_branch (mb, b1);
9607 mono_mb_emit_ldloc (mb, array_slot_addr);
9608 mono_mb_emit_ldarg (mb, 2);
9609 mono_mb_emit_byte (mb, CEE_STIND_REF);
9610 mono_mb_emit_byte (mb, CEE_RET);
9613 mono_mb_patch_branch (mb, b2);
9615 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9618 case STELEMREF_SEALED_CLASS:
9620 <ldelema (bound check)>
9624 aklass = array->vtable->klass->element_class;
9625 vklass = value->vtable->klass;
9627 if (vklass != aklass)
9631 *array_slot_addr = value;
9634 throw new ArrayTypeMismatchException ();
9636 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9637 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9638 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9641 /* ldelema (implicit bound check) */
9642 load_array_element_address (mb);
9643 mono_mb_emit_stloc (mb, array_slot_addr);
9645 /* if (!value) goto do_store */
9646 mono_mb_emit_ldarg (mb, 2);
9647 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9649 /* aklass = array->vtable->klass->element_class */
9650 load_array_class (mb, aklass);
9652 /* vklass = value->vtable->klass */
9653 load_value_class (mb, vklass);
9655 /*if (vklass != aklass) goto do_exception; */
9656 mono_mb_emit_ldloc (mb, aklass);
9657 mono_mb_emit_ldloc (mb, vklass);
9658 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9661 mono_mb_patch_branch (mb, b1);
9662 mono_mb_emit_ldloc (mb, array_slot_addr);
9663 mono_mb_emit_ldarg (mb, 2);
9664 mono_mb_emit_byte (mb, CEE_STIND_REF);
9665 mono_mb_emit_byte (mb, CEE_RET);
9668 mono_mb_patch_branch (mb, b2);
9669 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9672 case STELEMREF_CLASS:
9675 <ldelema (bound check)>
9679 aklass = array->vtable->klass->element_class;
9680 vklass = value->vtable->klass;
9682 if (vklass->idepth < aklass->idepth)
9685 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9689 *array_slot_addr = value;
9693 throw new ArrayTypeMismatchException ();
9695 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9696 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9697 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9699 /* ldelema (implicit bound check) */
9700 load_array_element_address (mb);
9701 mono_mb_emit_stloc (mb, array_slot_addr);
9703 /* if (!value) goto do_store */
9704 mono_mb_emit_ldarg (mb, 2);
9705 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9707 /* aklass = array->vtable->klass->element_class */
9708 load_array_class (mb, aklass);
9710 /* vklass = value->vtable->klass */
9711 load_value_class (mb, vklass);
9713 /*if (mono_object_isinst (value, aklass)) */
9714 mono_mb_emit_ldarg (mb, 2);
9715 mono_mb_emit_ldloc (mb, aklass);
9716 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9717 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9719 /* if (vklass->idepth < aklass->idepth) goto failue */
9720 mono_mb_emit_ldloc (mb, vklass);
9721 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9722 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9724 mono_mb_emit_ldloc (mb, aklass);
9725 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9726 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9728 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9730 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9731 mono_mb_emit_ldloc (mb, vklass);
9732 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9733 mono_mb_emit_byte (mb, CEE_LDIND_I);
9735 mono_mb_emit_ldloc (mb, aklass);
9736 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9737 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9738 mono_mb_emit_icon (mb, 1);
9739 mono_mb_emit_byte (mb, CEE_SUB);
9740 mono_mb_emit_icon (mb, sizeof (void*));
9741 mono_mb_emit_byte (mb, CEE_MUL);
9742 mono_mb_emit_byte (mb, CEE_ADD);
9743 mono_mb_emit_byte (mb, CEE_LDIND_I);
9745 mono_mb_emit_ldloc (mb, aklass);
9746 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9749 mono_mb_patch_branch (mb, b1);
9750 mono_mb_emit_ldloc (mb, array_slot_addr);
9751 mono_mb_emit_ldarg (mb, 2);
9752 mono_mb_emit_byte (mb, CEE_STIND_REF);
9753 mono_mb_emit_byte (mb, CEE_RET);
9756 mono_mb_patch_branch (mb, b2);
9757 mono_mb_patch_branch (mb, b3);
9759 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9762 case STELEMREF_INTERFACE:
9769 klass = array->obj.vtable->klass->element_class;
9771 uiid = klass->interface_id;
9772 if (uiid > vt->max_interface_id)
9774 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9777 mono_array_setref (array, index, value);
9780 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9782 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9783 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9784 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9785 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9787 /* ldelema (implicit bound check) */
9788 load_array_element_address (mb);
9789 mono_mb_emit_stloc (mb, array_slot_addr);
9791 /* if (!value) goto do_store */
9792 mono_mb_emit_ldarg (mb, 2);
9793 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9795 /* klass = array->vtable->klass->element_class */
9796 load_array_class (mb, aklass);
9798 /* vt = value->vtable */
9799 mono_mb_emit_ldarg (mb, 2);
9800 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9801 mono_mb_emit_byte (mb, CEE_LDIND_I);
9802 mono_mb_emit_stloc (mb, vtable);
9804 /* uiid = klass->interface_id; */
9805 mono_mb_emit_ldloc (mb, aklass);
9806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9807 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9808 mono_mb_emit_stloc (mb, uiid);
9810 /*if (uiid > vt->max_interface_id)*/
9811 mono_mb_emit_ldloc (mb, uiid);
9812 mono_mb_emit_ldloc (mb, vtable);
9813 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9814 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9815 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9817 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9819 /*vt->interface_bitmap*/
9820 mono_mb_emit_ldloc (mb, vtable);
9821 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9822 mono_mb_emit_byte (mb, CEE_LDIND_I);
9825 mono_mb_emit_ldloc (mb, uiid);
9826 mono_mb_emit_icon (mb, 3);
9827 mono_mb_emit_byte (mb, CEE_SHR_UN);
9829 /*vt->interface_bitmap [(uiid) >> 3]*/
9830 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9831 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9833 /*(1 << ((uiid)&7)))*/
9834 mono_mb_emit_icon (mb, 1);
9835 mono_mb_emit_ldloc (mb, uiid);
9836 mono_mb_emit_icon (mb, 7);
9837 mono_mb_emit_byte (mb, CEE_AND);
9838 mono_mb_emit_byte (mb, CEE_SHL);
9840 /*bitwise and the whole thing*/
9841 mono_mb_emit_byte (mb, CEE_AND);
9842 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9845 mono_mb_patch_branch (mb, b1);
9846 mono_mb_emit_ldloc (mb, array_slot_addr);
9847 mono_mb_emit_ldarg (mb, 2);
9848 mono_mb_emit_byte (mb, CEE_STIND_REF);
9849 mono_mb_emit_byte (mb, CEE_RET);
9852 mono_mb_patch_branch (mb, b2);
9853 mono_mb_patch_branch (mb, b3);
9854 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9858 mono_mb_emit_ldarg (mb, 0);
9859 mono_mb_emit_ldarg (mb, 1);
9860 mono_mb_emit_ldarg (mb, 2);
9861 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9862 mono_mb_emit_byte (mb, CEE_RET);
9865 #endif /* DISABLE_JIT */
9866 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9867 info->d.virtual_stelemref.kind = kind;
9868 res = mono_mb_create (mb, signature, 4, info);
9869 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9871 mono_marshal_lock ();
9872 if (!cached_methods [kind]) {
9873 cached_methods [kind] = res;
9874 mono_marshal_unlock ();
9876 mono_marshal_unlock ();
9877 mono_free_method (res);
9881 return cached_methods [kind];
9885 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9889 g_assert (array_class->rank == 1);
9890 kind = get_virtual_stelemref_kind (array_class->element_class);
9892 return get_virtual_stelemref_wrapper (kind);
9896 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9901 *nwrappers = STELEMREF_KIND_COUNT;
9902 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9903 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9904 res [i] = get_virtual_stelemref_wrapper (i);
9909 * The wrapper info for the wrapper is a WrapperInfo structure.
9912 mono_marshal_get_stelemref (void)
9914 static MonoMethod* ret = NULL;
9915 MonoMethodSignature *sig;
9916 MonoMethodBuilder *mb;
9919 guint32 b1, b2, b3, b4;
9922 int array_slot_addr;
9927 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9930 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9932 /* void stelemref (void* array, int idx, void* value) */
9933 sig->ret = &mono_defaults.void_class->byval_arg;
9934 sig->params [0] = &mono_defaults.object_class->byval_arg;
9935 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9936 sig->params [2] = &mono_defaults.object_class->byval_arg;
9939 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9940 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9941 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9945 <ldelema (bound check)>
9949 aklass = array->vtable->klass->element_class;
9950 vklass = value->vtable->klass;
9952 if (vklass->idepth < aklass->idepth)
9955 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9959 *array_slot_addr = value;
9963 if (mono_object_isinst (value, aklass))
9966 throw new ArrayTypeMismatchException ();
9969 /* ldelema (implicit bound check) */
9970 mono_mb_emit_ldarg (mb, 0);
9971 mono_mb_emit_ldarg (mb, 1);
9972 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9973 mono_mb_emit_stloc (mb, array_slot_addr);
9975 /* if (!value) goto do_store */
9976 mono_mb_emit_ldarg (mb, 2);
9977 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9979 /* aklass = array->vtable->klass->element_class */
9980 mono_mb_emit_ldarg (mb, 0);
9981 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9982 mono_mb_emit_byte (mb, CEE_LDIND_I);
9983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9984 mono_mb_emit_byte (mb, CEE_LDIND_I);
9985 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9986 mono_mb_emit_byte (mb, CEE_LDIND_I);
9987 mono_mb_emit_stloc (mb, aklass);
9989 /* vklass = value->vtable->klass */
9990 mono_mb_emit_ldarg (mb, 2);
9991 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9992 mono_mb_emit_byte (mb, CEE_LDIND_I);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9994 mono_mb_emit_byte (mb, CEE_LDIND_I);
9995 mono_mb_emit_stloc (mb, vklass);
9997 /* if (vklass->idepth < aklass->idepth) goto failue */
9998 mono_mb_emit_ldloc (mb, vklass);
9999 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10000 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10002 mono_mb_emit_ldloc (mb, aklass);
10003 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10004 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10006 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10008 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10009 mono_mb_emit_ldloc (mb, vklass);
10010 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10011 mono_mb_emit_byte (mb, CEE_LDIND_I);
10013 mono_mb_emit_ldloc (mb, aklass);
10014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10015 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10016 mono_mb_emit_icon (mb, 1);
10017 mono_mb_emit_byte (mb, CEE_SUB);
10018 mono_mb_emit_icon (mb, sizeof (void*));
10019 mono_mb_emit_byte (mb, CEE_MUL);
10020 mono_mb_emit_byte (mb, CEE_ADD);
10021 mono_mb_emit_byte (mb, CEE_LDIND_I);
10023 mono_mb_emit_ldloc (mb, aklass);
10025 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10027 copy_pos = mono_mb_get_label (mb);
10029 mono_mb_patch_branch (mb, b1);
10030 mono_mb_emit_ldloc (mb, array_slot_addr);
10031 mono_mb_emit_ldarg (mb, 2);
10032 mono_mb_emit_byte (mb, CEE_STIND_REF);
10034 mono_mb_emit_byte (mb, CEE_RET);
10037 mono_mb_patch_branch (mb, b2);
10038 mono_mb_patch_branch (mb, b3);
10040 mono_mb_emit_ldarg (mb, 2);
10041 mono_mb_emit_ldloc (mb, aklass);
10042 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10044 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10045 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10046 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10048 mono_mb_emit_byte (mb, CEE_RET);
10050 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10051 ret = mono_mb_create (mb, sig, 4, info);
10058 * mono_marshal_get_gsharedvt_in_wrapper:
10060 * This wrapper handles calls from normal code to gsharedvt code.
10062 * The wrapper info for the wrapper is a WrapperInfo structure.
10065 mono_marshal_get_gsharedvt_in_wrapper (void)
10067 static MonoMethod* ret = NULL;
10068 MonoMethodSignature *sig;
10069 MonoMethodBuilder *mb;
10075 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10077 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10078 sig->ret = &mono_defaults.void_class->byval_arg;
10080 #ifndef DISABLE_JIT
10082 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10084 mono_mb_emit_byte (mb, CEE_RET);
10086 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10087 ret = mono_mb_create (mb, sig, 4, info);
10094 * mono_marshal_get_gsharedvt_out_wrapper:
10096 * This wrapper handles calls from gsharedvt code to normal code.
10098 * The wrapper info for the wrapper is a WrapperInfo structure.
10101 mono_marshal_get_gsharedvt_out_wrapper (void)
10103 static MonoMethod* ret = NULL;
10104 MonoMethodSignature *sig;
10105 MonoMethodBuilder *mb;
10111 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10113 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10114 sig->ret = &mono_defaults.void_class->byval_arg;
10116 #ifndef DISABLE_JIT
10118 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10120 mono_mb_emit_byte (mb, CEE_RET);
10122 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10123 ret = mono_mb_create (mb, sig, 4, info);
10132 MonoMethod *method;
10135 /* LOCKING: vars accessed under the marshal lock */
10136 static ArrayElemAddr *elem_addr_cache = NULL;
10137 static int elem_addr_cache_size = 0;
10138 static int elem_addr_cache_next = 0;
10141 * mono_marshal_get_array_address:
10142 * @rank: rank of the array type
10143 * @elem_size: size in bytes of an element of an array.
10145 * Returns a MonoMethod that implements the code to get the address
10146 * of an element in a multi-dimenasional array of @rank dimensions.
10147 * The returned method takes an array as the first argument and then
10148 * @rank indexes for the @rank dimensions.
10149 * If ELEM_SIZE is 0, read the array size from the array object.
10152 mono_marshal_get_array_address (int rank, int elem_size)
10155 MonoMethodBuilder *mb;
10156 MonoMethodSignature *sig;
10159 int i, bounds, ind, realidx;
10160 int branch_pos, *branch_positions;
10164 mono_marshal_lock ();
10165 for (i = 0; i < elem_addr_cache_next; ++i) {
10166 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10167 ret = elem_addr_cache [i].method;
10171 mono_marshal_unlock ();
10175 branch_positions = g_new0 (int, rank);
10177 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10179 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10180 sig->ret = &mono_defaults.int_class->byval_arg;
10181 sig->params [0] = &mono_defaults.object_class->byval_arg;
10182 for (i = 0; i < rank; ++i) {
10183 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10186 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10187 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10190 #ifndef DISABLE_JIT
10191 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10192 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10193 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10195 /* bounds = array->bounds; */
10196 mono_mb_emit_ldarg (mb, 0);
10197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10198 mono_mb_emit_byte (mb, CEE_LDIND_I);
10199 mono_mb_emit_stloc (mb, bounds);
10201 /* ind is the overall element index, realidx is the partial index in a single dimension */
10202 /* ind = idx0 - bounds [0].lower_bound */
10203 mono_mb_emit_ldarg (mb, 1);
10204 mono_mb_emit_ldloc (mb, bounds);
10205 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10206 mono_mb_emit_byte (mb, CEE_ADD);
10207 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10208 mono_mb_emit_byte (mb, CEE_SUB);
10209 mono_mb_emit_stloc (mb, ind);
10210 /* if (ind >= bounds [0].length) goto exeception; */
10211 mono_mb_emit_ldloc (mb, ind);
10212 mono_mb_emit_ldloc (mb, bounds);
10213 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10214 mono_mb_emit_byte (mb, CEE_ADD);
10215 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10216 /* note that we use unsigned comparison */
10217 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10219 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10220 * We could also decide to ignore the passed elem_size and get it
10221 * from the array object, to reduce the number of methods we generate:
10222 * the additional cost is 3 memory loads and a non-immediate mul.
10224 for (i = 1; i < rank; ++i) {
10225 /* realidx = idxi - bounds [i].lower_bound */
10226 mono_mb_emit_ldarg (mb, 1 + i);
10227 mono_mb_emit_ldloc (mb, bounds);
10228 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10229 mono_mb_emit_byte (mb, CEE_ADD);
10230 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10231 mono_mb_emit_byte (mb, CEE_SUB);
10232 mono_mb_emit_stloc (mb, realidx);
10233 /* if (realidx >= bounds [i].length) goto exeception; */
10234 mono_mb_emit_ldloc (mb, realidx);
10235 mono_mb_emit_ldloc (mb, bounds);
10236 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10237 mono_mb_emit_byte (mb, CEE_ADD);
10238 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10239 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10240 /* ind = ind * bounds [i].length + realidx */
10241 mono_mb_emit_ldloc (mb, ind);
10242 mono_mb_emit_ldloc (mb, bounds);
10243 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10244 mono_mb_emit_byte (mb, CEE_ADD);
10245 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10246 mono_mb_emit_byte (mb, CEE_MUL);
10247 mono_mb_emit_ldloc (mb, realidx);
10248 mono_mb_emit_byte (mb, CEE_ADD);
10249 mono_mb_emit_stloc (mb, ind);
10252 /* return array->vector + ind * element_size */
10253 mono_mb_emit_ldarg (mb, 0);
10254 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10255 mono_mb_emit_ldloc (mb, ind);
10257 mono_mb_emit_icon (mb, elem_size);
10259 /* Load arr->vtable->klass->sizes.element_class */
10260 mono_mb_emit_ldarg (mb, 0);
10261 mono_mb_emit_byte (mb, CEE_CONV_I);
10262 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10263 mono_mb_emit_byte (mb, CEE_ADD);
10264 mono_mb_emit_byte (mb, CEE_LDIND_I);
10265 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10266 mono_mb_emit_byte (mb, CEE_ADD);
10267 mono_mb_emit_byte (mb, CEE_LDIND_I);
10268 /* sizes is an union, so this reads sizes.element_size */
10269 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10270 mono_mb_emit_byte (mb, CEE_ADD);
10271 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10273 mono_mb_emit_byte (mb, CEE_MUL);
10274 mono_mb_emit_byte (mb, CEE_ADD);
10275 mono_mb_emit_byte (mb, CEE_RET);
10277 /* patch the branches to get here and throw */
10278 for (i = 1; i < rank; ++i) {
10279 mono_mb_patch_branch (mb, branch_positions [i]);
10281 mono_mb_patch_branch (mb, branch_pos);
10282 /* throw exception */
10283 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10285 g_free (branch_positions);
10286 #endif /* DISABLE_JIT */
10288 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10289 info->d.element_addr.rank = rank;
10290 info->d.element_addr.elem_size = elem_size;
10291 ret = mono_mb_create (mb, sig, 4, info);
10294 /* cache the result */
10296 mono_marshal_lock ();
10297 for (i = 0; i < elem_addr_cache_next; ++i) {
10298 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10299 /* FIXME: free ret */
10300 ret = elem_addr_cache [i].method;
10306 if (elem_addr_cache_next >= elem_addr_cache_size) {
10307 int new_size = elem_addr_cache_size + 4;
10308 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10309 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10310 g_free (elem_addr_cache);
10311 elem_addr_cache = new_array;
10312 elem_addr_cache_size = new_size;
10314 elem_addr_cache [elem_addr_cache_next].rank = rank;
10315 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10316 elem_addr_cache [elem_addr_cache_next].method = ret;
10317 elem_addr_cache_next ++;
10319 mono_marshal_unlock ();
10324 * mono_marshal_get_array_accessor_wrapper:
10326 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10329 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10331 MonoMethodSignature *sig;
10332 MonoMethodBuilder *mb;
10336 MonoGenericContext *ctx = NULL;
10337 MonoMethod *orig_method = NULL;
10338 MonoGenericContainer *container = NULL;
10342 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10343 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10344 * FIXME: Use generic methods.
10351 g_assert_not_reached ();
10353 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10354 if ((res = mono_marshal_find_in_cache (cache, method)))
10358 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10361 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10363 #ifndef DISABLE_JIT
10364 /* Call the method */
10366 mono_mb_emit_ldarg (mb, 0);
10367 for (i = 0; i < sig->param_count; i++)
10368 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10372 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10373 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10375 mono_mb_emit_managed_call (mb, method, NULL);
10377 mono_mb_emit_byte (mb, CEE_RET);
10380 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10381 info->d.array_accessor.method = method;
10385 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10386 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10388 res = mono_mb_create_and_cache_full (cache, method,
10389 mb, sig, sig->param_count + 16,
10398 mono_marshal_alloc (gulong size, MonoError *error)
10402 mono_error_init (error);
10405 res = CoTaskMemAlloc (size);
10407 res = g_try_malloc ((gulong)size);
10409 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10414 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10416 ves_icall_marshal_alloc (gulong size)
10419 void *ret = mono_marshal_alloc (size, &error);
10420 if (!mono_error_ok (&error)) {
10421 mono_error_set_pending_exception (&error);
10429 mono_marshal_free (gpointer ptr)
10432 CoTaskMemFree (ptr);
10439 mono_marshal_free_array (gpointer *ptr, int size)
10446 for (i = 0; i < size; i++)
10452 mono_marshal_string_to_utf16 (MonoString *s)
10454 return s ? mono_string_chars (s) : NULL;
10457 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10459 mono_marshal_string_to_utf16_copy (MonoString *s)
10465 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10466 if (!mono_error_ok (&error)) {
10467 mono_error_set_pending_exception (&error);
10470 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10471 res [mono_string_length (s)] = 0;
10477 * mono_marshal_set_last_error:
10479 * This function is invoked to set the last error value from a P/Invoke call
10480 * which has SetLastError set.
10483 mono_marshal_set_last_error (void)
10486 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10488 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10493 mono_marshal_set_last_error_windows (int error)
10496 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10501 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10502 gpointer dest, gint32 length)
10507 MONO_CHECK_ARG_NULL (src,);
10508 MONO_CHECK_ARG_NULL (dest,);
10510 if (src->obj.vtable->klass->rank != 1) {
10511 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10514 if (start_index < 0) {
10515 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10519 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10522 if (start_index + length > mono_array_length (src)) {
10523 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10527 element_size = mono_array_element_size (src->obj.vtable->klass);
10529 /* no references should be involved */
10530 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10532 memcpy (dest, source_addr, length * element_size);
10536 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10537 MonoArray *dest, gint32 length)
10542 MONO_CHECK_ARG_NULL (src,);
10543 MONO_CHECK_ARG_NULL (dest,);
10545 if (dest->obj.vtable->klass->rank != 1) {
10546 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10549 if (start_index < 0) {
10550 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10554 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10557 if (start_index + length > mono_array_length (dest)) {
10558 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10561 element_size = mono_array_element_size (dest->obj.vtable->klass);
10563 /* no references should be involved */
10564 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10566 memcpy (dest_addr, src, length * element_size);
10570 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10575 return mono_string_new (mono_domain_get (), ptr);
10579 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10582 MonoString *result = NULL;
10583 mono_error_init (&error);
10585 mono_error_set_argument_null (&error, "ptr", "");
10587 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10588 mono_error_set_pending_exception (&error);
10593 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10596 MonoString *res = NULL;
10597 MonoDomain *domain = mono_domain_get ();
10607 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10608 if (!mono_error_ok (&error)) {
10609 mono_error_set_pending_exception (&error);
10616 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10619 MonoString *res = NULL;
10620 MonoDomain *domain = mono_domain_get ();
10622 mono_error_init (&error);
10626 mono_error_set_argument_null (&error, "ptr", "");
10628 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10631 if (!mono_error_ok (&error))
10632 mono_error_set_pending_exception (&error);
10637 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10639 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10643 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10649 MONO_CHECK_ARG_NULL (rtype, 0);
10651 type = rtype->type;
10652 klass = mono_class_from_mono_type (type);
10653 if (!mono_class_init (klass)) {
10654 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10658 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10660 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10661 return sizeof (gpointer);
10662 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10664 MonoException *exc;
10666 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10667 exc = mono_get_exception_argument ("t", msg);
10669 mono_set_pending_exception (exc);
10673 return mono_class_native_size (klass, NULL);
10677 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10680 MonoMethod *method;
10683 MONO_CHECK_ARG_NULL (obj,);
10684 MONO_CHECK_ARG_NULL (dst,);
10686 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10690 pa [2] = &delete_old;
10692 mono_runtime_invoke_checked (method, NULL, pa, &error);
10693 if (!mono_error_ok (&error))
10694 mono_error_set_pending_exception (&error);
10698 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10700 MonoMethod *method;
10703 mono_error_init (error);
10705 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10710 mono_runtime_invoke_checked (method, NULL, pa, error);
10714 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10719 MONO_CHECK_ARG_NULL (src,);
10720 MONO_CHECK_ARG_NULL (dst,);
10722 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10724 if (t->type == MONO_TYPE_VALUETYPE) {
10725 MonoException *exc;
10728 tmp = g_strdup_printf ("Destination is a boxed value type.");
10729 exc = mono_get_exception_argument ("dst", tmp);
10732 mono_set_pending_exception (exc);
10736 ptr_to_structure (src, dst, &error);
10737 if (!mono_error_ok (&error))
10738 mono_error_set_pending_exception (&error);
10742 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10746 MonoDomain *domain = mono_domain_get ();
10751 MONO_CHECK_ARG_NULL (type, NULL);
10753 klass = mono_class_from_mono_type (type->type);
10754 if (!mono_class_init (klass)) {
10755 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10759 res = mono_object_new_checked (domain, klass, &error);
10760 if (!mono_error_ok (&error)) {
10761 mono_error_set_pending_exception (&error);
10765 ptr_to_structure (src, res, &error);
10766 if (!mono_error_ok (&error)) {
10767 mono_error_set_pending_exception (&error);
10775 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10777 MonoMarshalType *info;
10780 int match_index = -1;
10782 MONO_CHECK_ARG_NULL (type, 0);
10783 MONO_CHECK_ARG_NULL (field_name, 0);
10785 fname = mono_string_to_utf8 (field_name);
10786 klass = mono_class_from_mono_type (type->type);
10787 if (!mono_class_init (klass)) {
10788 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10792 while (klass && match_index == -1) {
10793 MonoClassField* field;
10795 gpointer iter = NULL;
10796 while ((field = mono_class_get_fields (klass, &iter))) {
10797 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10799 if (!strcmp (fname, mono_field_get_name (field))) {
10806 if (match_index == -1)
10807 klass = klass->parent;
10812 if(match_index == -1) {
10813 MonoException* exc;
10816 /* Get back original class instance */
10817 klass = mono_class_from_mono_type (type->type);
10819 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10820 exc = mono_get_exception_argument ("fieldName", tmp);
10823 mono_set_pending_exception ((MonoException*)exc);
10827 info = mono_marshal_load_type_info (klass);
10828 return info->fields [match_index].offset;
10832 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10837 tres = mono_string_to_utf8 (string);
10841 len = strlen (tres) + 1;
10842 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10843 memcpy (ret, tres, len);
10848 return mono_string_to_utf8 (string);
10853 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10855 if (string == NULL)
10858 #ifdef TARGET_WIN32
10859 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10860 ((mono_string_length (string) + 1) * 2);
10862 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10864 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10865 res [mono_string_length (string)] = 0;
10871 mono_struct_delete_old (MonoClass *klass, char *ptr)
10873 MonoMarshalType *info;
10876 info = mono_marshal_load_type_info (klass);
10878 for (i = 0; i < info->num_fields; i++) {
10879 MonoMarshalConv conv;
10880 MonoType *ftype = info->fields [i].field->type;
10883 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10886 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10887 klass->unicode, &conv);
10889 cpos = ptr + info->fields [i].offset;
10892 case MONO_MARSHAL_CONV_NONE:
10893 if (MONO_TYPE_ISSTRUCT (ftype)) {
10894 mono_struct_delete_old (ftype->data.klass, cpos);
10898 case MONO_MARSHAL_CONV_STR_LPWSTR:
10899 /* We assume this field points inside a MonoString */
10901 case MONO_MARSHAL_CONV_STR_LPTSTR:
10902 #ifdef TARGET_WIN32
10903 /* We assume this field points inside a MonoString
10907 case MONO_MARSHAL_CONV_STR_LPSTR:
10908 case MONO_MARSHAL_CONV_STR_BSTR:
10909 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10910 case MONO_MARSHAL_CONV_STR_TBSTR:
10911 mono_marshal_free (*(gpointer *)cpos);
10921 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10925 MONO_CHECK_ARG_NULL (src,);
10926 MONO_CHECK_ARG_NULL (type,);
10928 klass = mono_class_from_mono_type (type->type);
10929 if (!mono_class_init (klass)) {
10930 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10934 mono_struct_delete_old (klass, (char *)src);
10938 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10941 size_t s = (size_t)size;
10944 /* This returns a valid pointer for size 0 on MS.NET */
10948 res = GlobalAlloc (GMEM_FIXED, s);
10950 res = g_try_malloc (s);
10953 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10961 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10964 size_t s = (size_t)size;
10967 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10972 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10974 res = g_try_realloc (ptr, s);
10977 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10985 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10995 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11000 res = CoTaskMemAlloc (size);
11002 if ((gulong)size == 0)
11003 /* This returns a valid pointer for size 0 on MS.NET */
11006 res = g_try_malloc ((gulong)size);
11009 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11016 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11019 CoTaskMemFree (ptr);
11026 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11031 res = CoTaskMemRealloc (ptr, size);
11033 res = g_try_realloc (ptr, (gulong)size);
11036 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11043 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11045 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11049 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11051 MonoClass *klass = mono_type_get_class (type->type);
11052 if (!mono_class_init (klass)) {
11053 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11057 return mono_ftnptr_to_delegate (klass, ftn);
11061 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11063 return mono_delegate_to_ftnptr (delegate);
11067 * mono_marshal_is_loading_type_info:
11069 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11073 mono_marshal_is_loading_type_info (MonoClass *klass)
11075 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11077 return g_slist_find (loads_list, klass) != NULL;
11081 * mono_marshal_load_type_info:
11083 * Initialize klass->marshal_info using information from metadata. This function can
11084 * recursively call itself, and the caller is responsible to avoid that by calling
11085 * mono_marshal_is_loading_type_info () beforehand.
11087 * LOCKING: Acquires the loader lock.
11090 mono_marshal_load_type_info (MonoClass* klass)
11093 guint32 native_size = 0, min_align = 1, packing;
11094 MonoMarshalType *info;
11095 MonoClassField* field;
11098 GSList *loads_list;
11100 g_assert (klass != NULL);
11102 if (klass->marshal_info)
11103 return klass->marshal_info;
11105 if (!klass->inited)
11106 mono_class_init (klass);
11108 if (klass->marshal_info)
11109 return klass->marshal_info;
11112 * This function can recursively call itself, so we keep the list of classes which are
11113 * under initialization in a TLS list.
11115 g_assert (!mono_marshal_is_loading_type_info (klass));
11116 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11117 loads_list = g_slist_prepend (loads_list, klass);
11118 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11121 while ((field = mono_class_get_fields (klass, &iter))) {
11122 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11124 if (mono_field_is_deleted (field))
11129 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11131 /* The mempool is protected by the loader lock */
11132 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11133 info->num_fields = count;
11135 /* Try to find a size for this type in metadata */
11136 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11138 if (klass->parent) {
11139 int parent_size = mono_class_native_size (klass->parent, NULL);
11141 /* Add parent size to real size */
11142 native_size += parent_size;
11143 info->native_size = parent_size;
11146 packing = klass->packing_size ? klass->packing_size : 8;
11149 while ((field = mono_class_get_fields (klass, &iter))) {
11153 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11156 if (mono_field_is_deleted (field))
11158 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11159 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11160 NULL, NULL, &info->fields [j].mspec);
11162 info->fields [j].field = field;
11164 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11165 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11166 /* This field is a hack inserted by MCS to empty structures */
11171 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11172 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11173 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11174 &align, TRUE, klass->unicode);
11175 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11176 min_align = MAX (align, min_align);
11177 info->fields [j].offset = info->native_size;
11178 info->fields [j].offset += align - 1;
11179 info->fields [j].offset &= ~(align - 1);
11180 info->native_size = info->fields [j].offset + size;
11182 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11183 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11184 &align, TRUE, klass->unicode);
11185 min_align = MAX (align, min_align);
11186 info->fields [j].offset = field->offset - sizeof (MonoObject);
11187 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11193 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11194 info->native_size = MAX (native_size, info->native_size);
11196 * If the provided Size is equal or larger than the calculated size, and there
11197 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11199 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11200 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11203 min_align = MIN (min_align, packing);
11207 if (info->native_size & (min_align - 1)) {
11208 info->native_size += min_align - 1;
11209 info->native_size &= ~(min_align - 1);
11212 info->min_align = min_align;
11214 /* Update the class's blittable info, if the layouts don't match */
11215 if (info->native_size != mono_class_value_size (klass, NULL))
11216 klass->blittable = FALSE;
11218 /* If this is an array type, ensure that we have element info */
11219 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11220 mono_marshal_load_type_info (klass->element_class);
11223 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11224 loads_list = g_slist_remove (loads_list, klass);
11225 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11227 mono_marshal_lock ();
11228 if (!klass->marshal_info) {
11229 /*We do double-checking locking on marshal_info */
11230 mono_memory_barrier ();
11231 klass->marshal_info = info;
11233 mono_marshal_unlock ();
11235 return klass->marshal_info;
11239 * mono_class_native_size:
11242 * Returns: the native size of an object instance (when marshaled
11243 * to unmanaged code)
11246 mono_class_native_size (MonoClass *klass, guint32 *align)
11248 if (!klass->marshal_info) {
11249 if (mono_marshal_is_loading_type_info (klass)) {
11254 mono_marshal_load_type_info (klass);
11259 *align = klass->marshal_info->min_align;
11261 return klass->marshal_info->native_size;
11265 * mono_type_native_stack_size:
11266 * @t: the type to return the size it uses on the stack
11268 * Returns: the number of bytes required to hold an instance of this
11269 * type on the native stack
11272 mono_type_native_stack_size (MonoType *t, guint32 *align)
11276 g_assert (t != NULL);
11282 *align = sizeof (gpointer);
11283 return sizeof (gpointer);
11287 case MONO_TYPE_BOOLEAN:
11288 case MONO_TYPE_CHAR:
11299 case MONO_TYPE_STRING:
11300 case MONO_TYPE_OBJECT:
11301 case MONO_TYPE_CLASS:
11302 case MONO_TYPE_SZARRAY:
11303 case MONO_TYPE_PTR:
11304 case MONO_TYPE_FNPTR:
11305 case MONO_TYPE_ARRAY:
11306 *align = sizeof (gpointer);
11307 return sizeof (gpointer);
11312 *align = MONO_ABI_ALIGNOF (double);
11316 *align = MONO_ABI_ALIGNOF (gint64);
11318 case MONO_TYPE_GENERICINST:
11319 if (!mono_type_generic_inst_is_valuetype (t)) {
11320 *align = sizeof (gpointer);
11321 return sizeof (gpointer);
11324 case MONO_TYPE_TYPEDBYREF:
11325 case MONO_TYPE_VALUETYPE: {
11327 MonoClass *klass = mono_class_from_mono_type (t);
11329 if (klass->enumtype)
11330 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11332 size = mono_class_native_size (klass, align);
11333 *align = *align + 3;
11343 g_error ("type 0x%02x unknown", t->type);
11349 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11350 gboolean as_field, gboolean unicode)
11352 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11355 switch (native_type) {
11356 case MONO_NATIVE_BOOLEAN:
11359 case MONO_NATIVE_I1:
11360 case MONO_NATIVE_U1:
11363 case MONO_NATIVE_I2:
11364 case MONO_NATIVE_U2:
11365 case MONO_NATIVE_VARIANTBOOL:
11368 case MONO_NATIVE_I4:
11369 case MONO_NATIVE_U4:
11370 case MONO_NATIVE_ERROR:
11373 case MONO_NATIVE_I8:
11374 case MONO_NATIVE_U8:
11375 *align = MONO_ABI_ALIGNOF (gint64);
11377 case MONO_NATIVE_R4:
11380 case MONO_NATIVE_R8:
11381 *align = MONO_ABI_ALIGNOF (double);
11383 case MONO_NATIVE_INT:
11384 case MONO_NATIVE_UINT:
11385 case MONO_NATIVE_LPSTR:
11386 case MONO_NATIVE_LPWSTR:
11387 case MONO_NATIVE_LPTSTR:
11388 case MONO_NATIVE_BSTR:
11389 case MONO_NATIVE_ANSIBSTR:
11390 case MONO_NATIVE_TBSTR:
11391 case MONO_NATIVE_LPARRAY:
11392 case MONO_NATIVE_SAFEARRAY:
11393 case MONO_NATIVE_IUNKNOWN:
11394 case MONO_NATIVE_IDISPATCH:
11395 case MONO_NATIVE_INTERFACE:
11396 case MONO_NATIVE_ASANY:
11397 case MONO_NATIVE_FUNC:
11398 case MONO_NATIVE_LPSTRUCT:
11399 *align = MONO_ABI_ALIGNOF (gpointer);
11400 return sizeof (gpointer);
11401 case MONO_NATIVE_STRUCT:
11402 klass = mono_class_from_mono_type (type);
11403 if (klass == mono_defaults.object_class &&
11404 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11408 return mono_class_native_size (klass, align);
11409 case MONO_NATIVE_BYVALTSTR: {
11410 int esize = unicode ? 2: 1;
11413 return mspec->data.array_data.num_elem * esize;
11415 case MONO_NATIVE_BYVALARRAY: {
11416 // FIXME: Have to consider ArraySubType
11418 klass = mono_class_from_mono_type (type);
11419 if (klass->element_class == mono_defaults.char_class) {
11420 esize = unicode ? 2 : 1;
11423 esize = mono_class_native_size (klass->element_class, align);
11426 return mspec->data.array_data.num_elem * esize;
11428 case MONO_NATIVE_CUSTOM:
11429 *align = sizeof (gpointer);
11430 return sizeof (gpointer);
11432 case MONO_NATIVE_CURRENCY:
11433 case MONO_NATIVE_VBBYREFSTR:
11435 g_error ("native type %02x not implemented", native_type);
11438 g_assert_not_reached ();
11442 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11444 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11453 t = &o->vtable->klass->byval_arg;
11457 case MONO_TYPE_PTR:
11460 case MONO_TYPE_BOOLEAN:
11463 case MONO_TYPE_CHAR:
11468 return mono_object_unbox (o);
11470 case MONO_TYPE_STRING:
11471 switch (string_encoding) {
11472 case MONO_NATIVE_LPWSTR:
11473 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11475 case MONO_NATIVE_LPSTR:
11476 return mono_string_to_lpstr ((MonoString*)o);
11479 g_warning ("marshaling conversion %d not implemented", string_encoding);
11480 g_assert_not_reached ();
11483 case MONO_TYPE_CLASS:
11484 case MONO_TYPE_VALUETYPE: {
11485 MonoMethod *method;
11488 MonoBoolean delete_old = FALSE;
11490 klass = t->data.klass;
11492 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11495 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11496 klass->blittable || klass->enumtype))
11497 return mono_object_unbox (o);
11499 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11500 if (!mono_error_ok (&error)) {
11501 mono_error_set_pending_exception (&error);
11505 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11506 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11510 pa [2] = &delete_old;
11512 mono_runtime_invoke_checked (method, NULL, pa, &error);
11513 if (!mono_error_ok (&error)) {
11514 mono_error_set_pending_exception (&error);
11524 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11528 /* This is a JIT icall, it sets the pending exception */
11530 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11539 t = &o->vtable->klass->byval_arg;
11541 case MONO_TYPE_STRING:
11542 switch (string_encoding) {
11543 case MONO_NATIVE_LPWSTR:
11544 case MONO_NATIVE_LPSTR:
11545 mono_marshal_free (ptr);
11548 g_warning ("marshaling conversion %d not implemented", string_encoding);
11549 g_assert_not_reached ();
11552 case MONO_TYPE_CLASS:
11553 case MONO_TYPE_VALUETYPE: {
11554 klass = t->data.klass;
11556 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11557 klass->blittable || klass->enumtype))
11560 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11561 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11567 mono_runtime_invoke_checked (method, NULL, pa, &error);
11568 if (!mono_error_ok (&error)) {
11569 mono_error_set_pending_exception (&error);
11574 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11575 mono_struct_delete_old (klass, (char *)ptr);
11578 mono_marshal_free (ptr);
11587 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11589 MonoMethodSignature *sig, *csig;
11590 MonoMethodBuilder *mb;
11595 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11596 mb->method->slot = -1;
11598 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11599 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11601 sig = mono_method_signature (method);
11602 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11603 csig->generic_param_count = 0;
11605 #ifndef DISABLE_JIT
11606 mono_mb_emit_ldarg (mb, 0);
11607 for (i = 0; i < csig->param_count; i++)
11608 mono_mb_emit_ldarg (mb, i + 1);
11609 mono_mb_emit_managed_call (mb, method, NULL);
11610 mono_mb_emit_byte (mb, CEE_RET);
11612 /* We can corlib internal methods */
11613 mb->skip_visibility = TRUE;
11615 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11616 info->d.generic_array_helper.method = method;
11617 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11625 * The mono_win32_compat_* functions are implementations of inline
11626 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11627 * although not exported by kernel32.
11629 * We map the appropiate kernel32 entries to these functions using
11630 * dllmaps declared in the global etc/mono/config.
11634 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11636 if (!dest || !source)
11639 memcpy (dest, source, length);
11643 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11645 memset (dest, fill, length);
11649 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11651 if (!dest || !source)
11654 memmove (dest, source, length);
11658 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11660 memset (dest, 0, length);
11664 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11669 for (i = 0; i < len; ++i)
11673 g_assert (i < len);
11676 while (byte && !(byte & 1))
11678 g_assert (byte == 1);
11681 *bitmask = buf [i];
11685 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11687 MonoMethodBuilder *mb;
11688 MonoMethodSignature *sig, *csig;
11689 MonoExceptionClause *clause;
11694 int i, param_count, sig_size, pos_leave;
11698 // FIXME: we need to store the exception into a MonoHandle
11699 g_assert (!mono_threads_is_coop_enabled ());
11701 klass = method->klass;
11702 image = method->klass->image;
11704 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11706 if ((res = mono_marshal_find_in_cache (cache, method)))
11709 sig = mono_method_signature (method);
11710 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11712 /* add "this" and exception param */
11713 param_count = sig->param_count + sig->hasthis + 1;
11715 /* dup & extend signature */
11716 csig = mono_metadata_signature_alloc (image, param_count);
11717 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11718 memcpy (csig, sig, sig_size);
11719 csig->param_count = param_count;
11722 csig->call_convention = MONO_CALL_DEFAULT;
11724 if (sig->hasthis) {
11726 csig->params [0] = &klass->byval_arg;
11727 /* move params up by one */
11728 for (i = 0; i < sig->param_count; i++)
11729 csig->params [i + 1] = sig->params [i];
11732 /* setup exception param as byref+[out] */
11733 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11734 &mono_defaults.exception_class->byval_arg);
11735 csig->params [param_count - 1]->byref = 1;
11736 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11738 /* convert struct return to object */
11739 if (MONO_TYPE_ISSTRUCT (sig->ret))
11740 csig->ret = &mono_defaults.object_class->byval_arg;
11742 #ifndef DISABLE_JIT
11743 /* local 0 (temp for exception object) */
11744 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11746 /* local 1 (temp for result) */
11747 if (!MONO_TYPE_IS_VOID (sig->ret))
11748 mono_mb_add_local (mb, sig->ret);
11750 /* clear exception arg */
11751 mono_mb_emit_ldarg (mb, param_count - 1);
11752 mono_mb_emit_byte (mb, CEE_LDNULL);
11753 mono_mb_emit_byte (mb, CEE_STIND_REF);
11756 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11757 clause->try_offset = mono_mb_get_label (mb);
11759 /* push method's args */
11760 for (i = 0; i < param_count - 1; i++) {
11764 mono_mb_emit_ldarg (mb, i);
11766 /* get the byval type of the param */
11767 klass = mono_class_from_mono_type (csig->params [i]);
11768 type = &klass->byval_arg;
11770 /* unbox struct args */
11771 if (MONO_TYPE_ISSTRUCT (type)) {
11772 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11774 /* byref args & and the "this" arg must remain a ptr.
11775 Otherwise make a copy of the value type */
11776 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11777 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11779 csig->params [i] = &mono_defaults.object_class->byval_arg;
11784 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11785 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11787 mono_mb_emit_op (mb, CEE_CALL, method);
11789 /* save result at local 1 */
11790 if (!MONO_TYPE_IS_VOID (sig->ret))
11791 mono_mb_emit_stloc (mb, 1);
11793 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11796 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11797 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11798 clause->data.catch_class = mono_defaults.object_class;
11800 clause->handler_offset = mono_mb_get_label (mb);
11802 /* store exception at local 0 */
11803 mono_mb_emit_stloc (mb, 0);
11804 mono_mb_emit_ldarg (mb, param_count - 1);
11805 mono_mb_emit_ldloc (mb, 0);
11806 mono_mb_emit_byte (mb, CEE_STIND_REF);
11807 mono_mb_emit_branch (mb, CEE_LEAVE);
11809 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11811 mono_mb_set_clauses (mb, 1, clause);
11813 mono_mb_patch_branch (mb, pos_leave);
11816 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11817 mono_mb_emit_ldloc (mb, 1);
11819 /* box the return value */
11820 if (MONO_TYPE_ISSTRUCT (sig->ret))
11821 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11824 mono_mb_emit_byte (mb, CEE_RET);
11827 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11834 * mono_marshal_free_dynamic_wrappers:
11836 * Free wrappers of the dynamic method METHOD.
11839 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11841 MonoImage *image = method->klass->image;
11843 g_assert (method_is_dynamic (method));
11845 /* This could be called during shutdown */
11846 if (marshal_mutex_initialized)
11847 mono_marshal_lock ();
11849 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11850 * they could be shared with other methods ?
11852 if (image->wrapper_caches.runtime_invoke_direct_cache)
11853 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11854 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11855 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11856 // FIXME: Need to clear the caches in other images as well
11857 if (image->delegate_bound_static_invoke_cache)
11858 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11860 if (marshal_mutex_initialized)
11861 mono_marshal_unlock ();
11865 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11867 g_assert (ftnptr_eh_callback);
11868 ftnptr_eh_callback (gchandle);
11872 ftnptr_eh_callback_default (guint32 gchandle)
11874 MonoException *exc;
11875 gpointer stackdata;
11877 g_assert (gchandle >= 0);
11879 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11881 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11883 mono_gchandle_free (gchandle);
11885 mono_raise_exception (exc);
11889 * mono_install_ftnptr_eh_callback:
11891 * Install a callback that should be called when there is a managed exception
11892 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11893 * managed exception to a native exception, to properly unwind the native
11894 * stack; this native exception will then be converted back to a managed
11895 * exception in their managed-to-native wrapper.
11898 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11900 ftnptr_eh_callback = callback;