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);
330 mono_cominterop_init ();
331 mono_remoting_init ();
336 mono_marshal_cleanup (void)
338 mono_cominterop_cleanup ();
340 mono_native_tls_free (load_type_info_tls_id);
341 mono_native_tls_free (last_error_tls_id);
342 mono_os_mutex_destroy (&marshal_mutex);
343 marshal_mutex_initialized = FALSE;
347 mono_marshal_lock_internal (void)
349 mono_marshal_lock ();
353 mono_marshal_unlock_internal (void)
355 mono_marshal_unlock ();
358 /* This is a JIT icall, it sets the pending exception and return NULL on error */
360 mono_delegate_to_ftnptr (MonoDelegate *delegate)
363 MonoMethod *method, *wrapper;
365 uint32_t target_handle = 0;
370 if (delegate->delegate_trampoline)
371 return delegate->delegate_trampoline;
373 klass = ((MonoObject *)delegate)->vtable->klass;
374 g_assert (klass->delegate);
376 method = delegate->method;
377 if (delegate->method_is_virtual)
378 method = mono_object_get_virtual_method (delegate->target, method);
380 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
381 const char *exc_class, *exc_arg;
384 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
386 g_assert (exc_class);
387 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
393 if (delegate->target) {
394 /* Produce a location which can be embedded in JITted code */
395 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
398 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
400 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
404 // Add the delegate to the delegate hash table
405 delegate_hash_table_add (delegate);
407 /* when the object is collected, collect the dynamic method, too */
408 mono_object_register_finalizer ((MonoObject*)delegate, &error);
412 return delegate->delegate_trampoline;
415 delegate_hash_table_remove (delegate);
417 mono_gchandle_free (target_handle);
418 mono_error_set_pending_exception (&error);
423 * this hash table maps from a delegate trampoline object to a weak reference
424 * of the delegate. As an optimizations with a non-moving GC we store the
425 * object pointer itself, otherwise we use a GC handle.
427 static GHashTable *delegate_hash_table;
430 delegate_hash_table_new (void) {
431 return g_hash_table_new (NULL, NULL);
435 delegate_hash_table_remove (MonoDelegate *d)
437 guint32 gchandle = 0;
439 mono_marshal_lock ();
440 if (delegate_hash_table == NULL)
441 delegate_hash_table = delegate_hash_table_new ();
442 if (mono_gc_is_moving ())
443 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
444 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
445 mono_marshal_unlock ();
446 if (gchandle && mono_gc_is_moving ())
447 mono_gchandle_free (gchandle);
451 delegate_hash_table_add (MonoDelegate *d)
454 guint32 old_gchandle;
456 mono_marshal_lock ();
457 if (delegate_hash_table == NULL)
458 delegate_hash_table = delegate_hash_table_new ();
459 if (mono_gc_is_moving ()) {
460 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
461 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
462 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
464 mono_gchandle_free (old_gchandle);
466 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
468 mono_marshal_unlock ();
472 * mono_marshal_use_aot_wrappers:
474 * Instructs this module to use AOT compatible wrappers.
477 mono_marshal_use_aot_wrappers (gboolean use)
479 use_aot_wrappers = use;
483 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
486 MonoCustomAttrInfo *cinfo;
487 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
489 /* The attribute is only available in Net 2.0 */
490 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
492 * The pinvoke attributes are stored in a real custom attribute so we have to
495 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
496 if (!mono_error_ok (&error)) {
497 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
498 mono_error_cleanup (&error);
500 if (cinfo && !mono_runtime_get_no_exec ()) {
501 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
503 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
505 if (!mono_error_ok (&error)) {
506 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
507 mono_error_cleanup (&error);
511 mono_custom_attrs_free (cinfo);
516 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
518 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
527 mono_marshal_lock ();
528 if (delegate_hash_table == NULL)
529 delegate_hash_table = delegate_hash_table_new ();
531 if (mono_gc_is_moving ()) {
532 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
533 mono_marshal_unlock ();
535 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
539 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
540 mono_marshal_unlock ();
543 /* This is a native function, so construct a delegate for it */
544 MonoMethodSignature *sig;
546 MonoMarshalSpec **mspecs;
547 MonoMethod *invoke = mono_get_delegate_invoke (klass);
548 MonoMethodPInvoke piinfo;
549 MonoObject *this_obj;
552 if (use_aot_wrappers) {
553 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
554 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
555 if (!is_ok (&error)) {
556 mono_error_set_pending_exception (&error);
560 memset (&piinfo, 0, sizeof (piinfo));
561 parse_unmanaged_function_pointer_attr (klass, &piinfo);
563 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
564 mono_method_get_marshal_info (invoke, mspecs);
565 /* Freed below so don't alloc from mempool */
566 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
569 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
572 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
574 mono_metadata_free_marshal_spec (mspecs [i]);
579 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
580 if (!mono_error_ok (&error)) {
581 mono_error_set_pending_exception (&error);
584 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
585 if (mono_error_set_pending_exception (&error))
587 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper);
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);
2240 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2241 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2242 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2243 MONO_OBJECT_SETREF (msg, async_result, ares);
2244 msg->call_type = CallType_BeginInvoke;
2247 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2248 if (!mono_error_ok (&error)) {
2249 mono_error_set_pending_exception (&error);
2253 mono_set_pending_exception ((MonoException *) exc);
2259 klass = delegate->object.vtable->klass;
2261 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2263 method = mono_get_delegate_invoke (klass);
2266 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2267 mono_error_set_pending_exception (&error);
2274 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2276 int i, params_var, tmp_var;
2278 /* allocate local (pointer) *params[] */
2279 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2280 /* allocate local (pointer) tmp */
2281 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2283 /* alloate space on stack to store an array of pointers to the arguments */
2284 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2285 mono_mb_emit_byte (mb, CEE_PREFIX1);
2286 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2287 mono_mb_emit_stloc (mb, params_var);
2290 mono_mb_emit_ldloc (mb, params_var);
2291 mono_mb_emit_stloc (mb, tmp_var);
2293 if (save_this && sig->hasthis) {
2294 mono_mb_emit_ldloc (mb, tmp_var);
2295 mono_mb_emit_ldarg_addr (mb, 0);
2296 mono_mb_emit_byte (mb, CEE_STIND_I);
2297 /* tmp = tmp + sizeof (gpointer) */
2298 if (sig->param_count)
2299 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2303 for (i = 0; i < sig->param_count; i++) {
2304 mono_mb_emit_ldloc (mb, tmp_var);
2305 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2306 mono_mb_emit_byte (mb, CEE_STIND_I);
2307 /* tmp = tmp + sizeof (gpointer) */
2308 if (i < (sig->param_count - 1))
2309 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2315 #endif /* DISABLE_JIT */
2318 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2322 GString *res = g_string_new ("");
2325 g_string_append (res, prefix);
2326 g_string_append_c (res, '_');
2329 mono_type_get_desc (res, sig->ret, FALSE);
2332 g_string_append (res, "__this__");
2334 for (i = 0; i < sig->param_count; ++i) {
2335 g_string_append_c (res, '_');
2336 mono_type_get_desc (res, sig->params [i], FALSE);
2339 g_string_free (res, FALSE);
2344 * mono_marshal_get_string_encoding:
2346 * Return the string encoding which should be used for a given parameter.
2348 static MonoMarshalNative
2349 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2351 /* First try the parameter marshal info */
2353 if (spec->native == MONO_NATIVE_LPARRAY) {
2354 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2355 return spec->data.array_data.elem_type;
2358 return spec->native;
2362 return MONO_NATIVE_LPSTR;
2364 /* Then try the method level marshal info */
2365 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2366 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2367 return MONO_NATIVE_LPSTR;
2368 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2369 return MONO_NATIVE_LPWSTR;
2370 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2372 return MONO_NATIVE_LPWSTR;
2374 return MONO_NATIVE_LPSTR;
2377 return MONO_NATIVE_LPSTR;
2381 static MonoMarshalConv
2382 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2384 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2387 case MONO_NATIVE_LPWSTR:
2388 return MONO_MARSHAL_CONV_STR_LPWSTR;
2389 case MONO_NATIVE_LPSTR:
2390 case MONO_NATIVE_VBBYREFSTR:
2391 return MONO_MARSHAL_CONV_STR_LPSTR;
2392 case MONO_NATIVE_LPTSTR:
2393 return MONO_MARSHAL_CONV_STR_LPTSTR;
2394 case MONO_NATIVE_BSTR:
2395 return MONO_MARSHAL_CONV_STR_BSTR;
2397 return MONO_MARSHAL_CONV_INVALID;
2401 static MonoMarshalConv
2402 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2404 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2407 case MONO_NATIVE_LPWSTR:
2408 return MONO_MARSHAL_CONV_SB_LPWSTR;
2410 case MONO_NATIVE_LPSTR:
2411 return MONO_MARSHAL_CONV_SB_LPSTR;
2413 case MONO_NATIVE_LPTSTR:
2414 return MONO_MARSHAL_CONV_SB_LPTSTR;
2417 return MONO_MARSHAL_CONV_INVALID;
2421 static MonoMarshalConv
2422 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2424 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2429 case MONO_NATIVE_LPWSTR:
2431 return MONO_MARSHAL_CONV_LPWSTR_STR;
2432 case MONO_NATIVE_LPSTR:
2433 case MONO_NATIVE_VBBYREFSTR:
2434 return MONO_MARSHAL_CONV_LPSTR_STR;
2435 case MONO_NATIVE_LPTSTR:
2436 return MONO_MARSHAL_CONV_LPTSTR_STR;
2437 case MONO_NATIVE_BSTR:
2438 return MONO_MARSHAL_CONV_BSTR_STR;
2440 return MONO_MARSHAL_CONV_INVALID;
2444 static MonoMarshalConv
2445 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2447 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2452 case MONO_NATIVE_LPWSTR:
2454 * mono_string_builder_to_utf16 does not allocate a
2455 * new buffer, so no need to free it.
2458 return MONO_MARSHAL_CONV_LPWSTR_SB;
2459 case MONO_NATIVE_LPSTR:
2460 return MONO_MARSHAL_CONV_LPSTR_SB;
2462 case MONO_NATIVE_LPTSTR:
2463 return MONO_MARSHAL_CONV_LPTSTR_SB;
2466 return MONO_MARSHAL_CONV_INVALID;
2471 * Return whenever a field of a native structure or an array member needs to
2475 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2477 MonoMarshalNative encoding;
2480 case MONO_TYPE_VALUETYPE:
2481 /* FIXME: Optimize this */
2483 case MONO_TYPE_OBJECT:
2484 case MONO_TYPE_CLASS:
2485 if (t->data.klass == mono_defaults.stringbuilder_class) {
2487 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2491 case MONO_TYPE_STRING:
2492 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2493 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2500 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2503 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2506 mono_marshal_lock ();
2509 g_hash_table_new (hash_func, equal_func);
2510 mono_memory_barrier ();
2513 mono_marshal_unlock ();
2519 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2521 return get_cache (var, hash_func, equal_func);
2525 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2529 mono_marshal_lock ();
2530 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2531 mono_marshal_unlock ();
2538 * Create a MonoMethod from MB, set INFO as wrapper info.
2541 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2542 int max_stack, WrapperInfo *info)
2546 res = mono_mb_create_method (mb, sig, max_stack);
2548 mono_marshal_set_wrapper_info (res, info);
2552 /* Create the method from the builder and place it in the cache */
2554 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2555 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2556 int max_stack, WrapperInfo *info, gboolean *out_found)
2563 mono_marshal_lock ();
2564 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2565 mono_marshal_unlock ();
2568 newm = mono_mb_create_method (mb, sig, max_stack);
2569 mono_marshal_lock ();
2570 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2573 g_hash_table_insert (cache, key, res);
2574 mono_marshal_set_wrapper_info (res, info);
2575 mono_marshal_unlock ();
2579 mono_marshal_unlock ();
2580 mono_free_method (newm);
2588 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2589 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2592 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2596 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2599 int wrapper_type = wrapper->wrapper_type;
2602 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2605 info = mono_marshal_get_wrapper_info (wrapper);
2607 switch (wrapper_type) {
2608 case MONO_WRAPPER_REMOTING_INVOKE:
2609 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2610 case MONO_WRAPPER_XDOMAIN_INVOKE:
2611 m = info->d.remoting.method;
2612 if (wrapper->is_inflated) {
2616 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2617 * contains an uninflated method.
2619 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2620 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2624 case MONO_WRAPPER_SYNCHRONIZED:
2625 m = info->d.synchronized.method;
2626 if (wrapper->is_inflated) {
2629 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2630 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2634 case MONO_WRAPPER_UNBOX:
2635 return info->d.unbox.method;
2636 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2637 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2638 return info->d.managed_to_native.method;
2641 case MONO_WRAPPER_RUNTIME_INVOKE:
2642 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2643 return info->d.runtime_invoke.method;
2652 * mono_marshal_get_wrapper_info:
2654 * Retrieve the WrapperInfo structure associated with WRAPPER.
2657 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2659 g_assert (wrapper->wrapper_type);
2661 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2665 * mono_marshal_set_wrapper_info:
2667 * Set the WrapperInfo structure associated with the wrapper
2668 * method METHOD to INFO.
2671 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2675 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2678 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2683 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2687 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2688 info->subtype = subtype;
2693 * get_wrapper_target_class:
2695 * Return the class where a wrapper method should be placed.
2698 get_wrapper_target_class (MonoImage *image)
2705 * - can't put all wrappers into an mscorlib class, because they reference
2706 * metadata (signature) so they should be put into the same image as the
2707 * method they wrap, so they are unloaded together.
2708 * - putting them into a class with a type initalizer could cause the
2709 * initializer to be executed which can be a problem if the wrappers are
2711 * - putting them into an inflated class can cause problems if the the
2712 * class is deleted because it references an image which is unloaded.
2713 * To avoid these problems, we put the wrappers into the <Module> class of
2716 if (image_is_dynamic (image)) {
2717 klass = ((MonoDynamicImage*)image)->wrappers_type;
2719 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2720 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2728 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2729 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2733 * check_generic_wrapper_cache:
2735 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2736 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2737 * generic method definition.
2740 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2743 MonoMethod *inst, *def;
2744 MonoGenericContext *ctx;
2746 g_assert (orig_method->is_inflated);
2747 ctx = mono_method_get_context (orig_method);
2750 * Look for the instance
2752 res = mono_marshal_find_in_cache (cache, key);
2757 * Look for the definition
2759 def = mono_marshal_find_in_cache (cache, def_key);
2762 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2763 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2765 mono_memory_barrier ();
2766 mono_marshal_lock ();
2767 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2769 g_hash_table_insert (cache, key, inst);
2772 mono_marshal_unlock ();
2779 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2782 MonoMethod *inst, *res;
2785 * We use the same cache for the generic definition and the instances.
2787 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2788 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2789 mono_memory_barrier ();
2790 mono_marshal_lock ();
2791 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2793 g_hash_table_insert (cache, key, inst);
2796 mono_marshal_unlock ();
2801 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2805 MonoMethod *inst, *def;
2808 * Look for the instance
2810 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2815 * Look for the definition
2817 def = mono_marshal_find_in_cache (cache, def_method->klass);
2819 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2820 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2823 mono_memory_barrier ();
2824 mono_marshal_lock ();
2825 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2827 g_hash_table_insert (cache, orig_method->klass, inst);
2830 mono_marshal_unlock ();
2837 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2840 MonoMethod *inst, *res;
2843 * We use the same cache for the generic definition and the instances.
2845 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2846 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2848 mono_memory_barrier ();
2849 mono_marshal_lock ();
2850 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2852 g_hash_table_insert (cache, orig_method->klass, inst);
2855 mono_marshal_unlock ();
2860 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2862 MonoMethodSignature *sig;
2863 MonoMethodBuilder *mb;
2868 MonoGenericContext *ctx = NULL;
2869 MonoMethod *orig_method = NULL;
2871 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2872 !strcmp (method->name, "BeginInvoke"));
2875 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2877 if (method->is_inflated) {
2878 orig_method = method;
2879 ctx = &((MonoMethodInflated*)method)->context;
2880 method = ((MonoMethodInflated*)method)->declaring;
2883 sig = mono_signature_no_pinvoke (method);
2889 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2890 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2894 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2895 (GHashFunc)mono_signature_hash,
2896 (GCompareFunc)mono_metadata_signature_equal);
2897 if ((res = mono_marshal_find_in_cache (cache, sig)))
2901 g_assert (sig->hasthis);
2903 name = mono_signature_to_name (sig, "begin_invoke");
2905 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2907 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2911 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2913 mono_mb_emit_ldarg (mb, 0);
2914 mono_mb_emit_ldloc (mb, params_var);
2915 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2916 mono_mb_emit_byte (mb, CEE_RET);
2921 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2922 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2924 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2931 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2933 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2936 MonoDomain *domain = mono_domain_get ();
2937 MonoAsyncResult *ares;
2938 MonoMethod *method = NULL;
2939 MonoMethodSignature *sig;
2940 MonoMethodMessage *msg;
2941 MonoObject *res, *exc;
2942 MonoArray *out_args;
2945 g_assert (delegate);
2947 if (!delegate->method_info) {
2948 g_assert (delegate->method);
2949 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2950 if (!mono_error_ok (&error)) {
2951 mono_error_set_pending_exception (&error);
2954 MONO_OBJECT_SETREF (delegate, method_info, rm);
2957 if (!delegate->method_info || !delegate->method_info->method)
2958 g_assert_not_reached ();
2960 klass = delegate->object.vtable->klass;
2962 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2963 g_assert (method != NULL);
2965 sig = mono_signature_no_pinvoke (method);
2967 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2969 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2971 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."));
2975 if (ares->async_delegate != (MonoObject*)delegate) {
2976 mono_set_pending_exception (mono_get_exception_invalid_operation (
2977 "The IAsyncResult object provided does not match this delegate."));
2981 #ifndef DISABLE_REMOTING
2982 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2983 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2984 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2985 if (!mono_error_ok (&error)) {
2986 mono_error_set_pending_exception (&error);
2989 mono_message_init (domain, msg, delegate->method_info, NULL);
2990 msg->call_type = CallType_EndInvoke;
2991 MONO_OBJECT_SETREF (msg, async_result, ares);
2992 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2993 if (!mono_error_ok (&error)) {
2994 mono_error_set_pending_exception (&error);
3000 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
3004 if (((MonoException*)exc)->stack_trace) {
3005 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3007 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3009 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3012 mono_set_pending_exception ((MonoException*)exc);
3015 mono_method_return_message_restore (method, params, out_args, &error);
3016 mono_error_set_pending_exception (&error);
3023 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3025 MonoType *t = mono_type_get_underlying_type (return_type);
3027 if (return_type->byref)
3028 return_type = &mono_defaults.int_class->byval_arg;
3031 case MONO_TYPE_VOID:
3032 g_assert_not_reached ();
3035 case MONO_TYPE_STRING:
3036 case MONO_TYPE_CLASS:
3037 case MONO_TYPE_OBJECT:
3038 case MONO_TYPE_ARRAY:
3039 case MONO_TYPE_SZARRAY:
3043 case MONO_TYPE_BOOLEAN:
3046 case MONO_TYPE_CHAR:
3056 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3057 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3059 case MONO_TYPE_GENERICINST:
3060 if (!mono_type_generic_inst_is_valuetype (t))
3063 case MONO_TYPE_VALUETYPE: {
3064 MonoClass *klass = mono_class_from_mono_type (return_type);
3065 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3066 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3070 case MONO_TYPE_MVAR: {
3071 MonoClass *klass = mono_class_from_mono_type (return_type);
3072 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3076 g_warning ("type 0x%x not handled", return_type->type);
3077 g_assert_not_reached ();
3080 mono_mb_emit_byte (mb, CEE_RET);
3083 #endif /* DISABLE_JIT */
3086 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3088 MonoMethodSignature *sig;
3089 MonoMethodBuilder *mb;
3094 MonoGenericContext *ctx = NULL;
3095 MonoMethod *orig_method = NULL;
3097 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3098 !strcmp (method->name, "EndInvoke"));
3101 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3103 if (method->is_inflated) {
3104 orig_method = method;
3105 ctx = &((MonoMethodInflated*)method)->context;
3106 method = ((MonoMethodInflated*)method)->declaring;
3109 sig = mono_signature_no_pinvoke (method);
3115 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3116 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3120 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3121 (GHashFunc)mono_signature_hash,
3122 (GCompareFunc)mono_metadata_signature_equal);
3123 if ((res = mono_marshal_find_in_cache (cache, sig)))
3127 g_assert (sig->hasthis);
3129 name = mono_signature_to_name (sig, "end_invoke");
3131 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3133 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3137 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3139 mono_mb_emit_ldarg (mb, 0);
3140 mono_mb_emit_ldloc (mb, params_var);
3141 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3143 if (sig->ret->type == MONO_TYPE_VOID) {
3144 mono_mb_emit_byte (mb, CEE_POP);
3145 mono_mb_emit_byte (mb, CEE_RET);
3147 mono_mb_emit_restore_result (mb, sig->ret);
3152 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3153 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3155 res = mono_mb_create_and_cache (cache, sig,
3156 mb, sig, sig->param_count + 16);
3165 MonoMethodSignature *sig;
3167 } SignaturePointerPair;
3170 signature_pointer_pair_hash (gconstpointer data)
3172 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3174 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3178 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3180 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3181 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3185 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3187 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3189 return pair->pointer == user_data;
3193 free_signature_pointer_pair (SignaturePointerPair *pair)
3199 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3201 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3203 MonoMethodBuilder *mb;
3206 gpointer cache_key = NULL;
3207 SignaturePointerPair key;
3208 SignaturePointerPair *new_key;
3209 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3210 int pos0, pos1, pos2;
3212 MonoClass *target_class = NULL;
3213 gboolean closed_over_null = FALSE;
3214 MonoGenericContext *ctx = NULL;
3215 MonoGenericContainer *container = NULL;
3216 MonoMethod *orig_method = NULL;
3218 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3222 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3223 !strcmp (method->name, "Invoke"));
3225 invoke_sig = sig = mono_signature_no_pinvoke (method);
3228 * If the delegate target is null, and the target method is not static, a virtual
3229 * call is made to that method with the first delegate argument as this. This is
3230 * a non-documented .NET feature.
3233 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3234 if (target_method->is_inflated) {
3236 MonoType *target_type;
3238 g_assert (method->signature->hasthis);
3239 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3240 mono_method_get_context (method), &error);
3241 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3242 target_class = mono_class_from_mono_type (target_type);
3244 target_class = target_method->klass;
3247 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3250 if (static_method_with_first_arg_bound) {
3251 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3252 g_assert (!callvirt);
3253 invoke_sig = mono_method_signature (target_method);
3257 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3259 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3260 orig_method = method;
3261 ctx = &((MonoMethodInflated*)method)->context;
3262 method = ((MonoMethodInflated*)method)->declaring;
3264 container = mono_method_get_generic_container (method);
3266 container = method->klass->generic_container;
3267 g_assert (container);
3269 invoke_sig = sig = mono_signature_no_pinvoke (method);
3276 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3277 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3280 cache_key = method->klass;
3281 } else if (static_method_with_first_arg_bound) {
3282 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3283 (GHashFunc)mono_signature_hash,
3284 (GCompareFunc)mono_metadata_signature_equal);
3286 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3288 res = mono_marshal_find_in_cache (cache, invoke_sig);
3291 cache_key = invoke_sig;
3292 } else if (callvirt) {
3293 GHashTable **cache_ptr;
3295 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3297 /* We need to cache the signature+method pair */
3298 mono_marshal_lock ();
3300 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3302 key.sig = invoke_sig;
3303 key.pointer = target_method;
3304 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3305 mono_marshal_unlock ();
3309 // Inflated methods should not be in this cache because it's not stored on the imageset.
3310 g_assert (!method->is_inflated);
3311 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3312 (GHashFunc)mono_signature_hash,
3313 (GCompareFunc)mono_metadata_signature_equal);
3314 res = mono_marshal_find_in_cache (cache, sig);
3320 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3321 static_sig->hasthis = 0;
3322 if (!static_method_with_first_arg_bound)
3323 invoke_sig = static_sig;
3325 if (static_method_with_first_arg_bound)
3326 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3327 else if (closed_over_null)
3328 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3330 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3332 name = mono_signature_to_name (invoke_sig, "invoke");
3334 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3336 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3340 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3342 /* allocate local 0 (object) */
3343 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3344 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3345 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3346 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3347 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3350 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3352 g_assert (sig->hasthis);
3355 * {type: sig->ret} res;
3356 * if (delegates == null) {
3357 * return this.<target> ( args .. );
3359 * int i = 0, len = this.delegates.Length;
3361 * res = this.delegates [i].Invoke ( args .. );
3362 * } while (++i < len);
3367 /* this wrapper can be used in unmanaged-managed transitions */
3368 emit_thread_interrupt_checkpoint (mb);
3370 /* delegates = this.delegates */
3371 mono_mb_emit_ldarg (mb, 0);
3372 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3373 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3374 mono_mb_emit_stloc (mb, local_delegates);
3377 /* if (delegates == null) */
3378 mono_mb_emit_ldloc (mb, local_delegates);
3379 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3381 /* return target.<target_method|method_ptr> ( args .. ); */
3383 /* target = d.target; */
3384 mono_mb_emit_ldarg (mb, 0);
3385 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3386 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3387 mono_mb_emit_stloc (mb, local_target);
3389 /*static methods with bound first arg can have null target and still be bound*/
3390 if (!static_method_with_first_arg_bound) {
3391 /* if target != null */
3392 mono_mb_emit_ldloc (mb, local_target);
3393 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3395 /* then call this->method_ptr nonstatic */
3398 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3400 mono_mb_emit_ldloc (mb, local_target);
3401 for (i = 0; i < sig->param_count; ++i)
3402 mono_mb_emit_ldarg (mb, i + 1);
3403 mono_mb_emit_ldarg (mb, 0);
3404 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3405 mono_mb_emit_byte (mb, CEE_LDIND_I);
3406 mono_mb_emit_ldarg (mb, 0);
3407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3408 mono_mb_emit_byte (mb, CEE_LDIND_I);
3409 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3410 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3411 mono_mb_emit_byte (mb, CEE_RET);
3414 /* else [target == null] call this->method_ptr static */
3415 mono_mb_patch_branch (mb, pos0);
3419 if (!closed_over_null) {
3420 if (target_class->valuetype) {
3421 mono_mb_emit_ldarg (mb, 1);
3422 for (i = 1; i < sig->param_count; ++i)
3423 mono_mb_emit_ldarg (mb, i + 1);
3424 mono_mb_emit_op (mb, CEE_CALL, target_method);
3426 mono_mb_emit_ldarg (mb, 1);
3427 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3428 for (i = 1; i < sig->param_count; ++i)
3429 mono_mb_emit_ldarg (mb, i + 1);
3430 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3433 mono_mb_emit_byte (mb, CEE_LDNULL);
3434 for (i = 0; i < sig->param_count; ++i)
3435 mono_mb_emit_ldarg (mb, i + 1);
3436 mono_mb_emit_op (mb, CEE_CALL, target_method);
3439 if (static_method_with_first_arg_bound) {
3440 mono_mb_emit_ldloc (mb, local_target);
3441 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3442 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3444 for (i = 0; i < sig->param_count; ++i)
3445 mono_mb_emit_ldarg (mb, i + 1);
3446 mono_mb_emit_ldarg (mb, 0);
3447 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3448 mono_mb_emit_byte (mb, CEE_LDIND_I);
3449 mono_mb_emit_ldarg (mb, 0);
3450 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3451 mono_mb_emit_byte (mb, CEE_LDIND_I);
3452 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3453 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3456 mono_mb_emit_byte (mb, CEE_RET);
3458 /* else [delegates != null] */
3459 mono_mb_patch_branch (mb, pos2);
3461 /* len = delegates.Length; */
3462 mono_mb_emit_ldloc (mb, local_delegates);
3463 mono_mb_emit_byte (mb, CEE_LDLEN);
3464 mono_mb_emit_byte (mb, CEE_CONV_I4);
3465 mono_mb_emit_stloc (mb, local_len);
3468 mono_mb_emit_icon (mb, 0);
3469 mono_mb_emit_stloc (mb, local_i);
3471 pos1 = mono_mb_get_label (mb);
3473 /* d = delegates [i]; */
3474 mono_mb_emit_ldloc (mb, local_delegates);
3475 mono_mb_emit_ldloc (mb, local_i);
3476 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3477 mono_mb_emit_stloc (mb, local_d);
3479 /* res = d.Invoke ( args .. ); */
3480 mono_mb_emit_ldloc (mb, local_d);
3481 for (i = 0; i < sig->param_count; i++)
3482 mono_mb_emit_ldarg (mb, i + 1);
3484 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3487 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3488 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3491 mono_mb_emit_stloc (mb, local_res);
3494 mono_mb_emit_add_to_local (mb, local_i, 1);
3497 mono_mb_emit_ldloc (mb, local_i);
3498 mono_mb_emit_ldloc (mb, local_len);
3499 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3503 mono_mb_emit_ldloc (mb, local_res);
3504 mono_mb_emit_byte (mb, CEE_RET);
3506 mb->skip_visibility = 1;
3507 #endif /* DISABLE_JIT */
3509 info = mono_wrapper_info_create (mb, subtype);
3514 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3515 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3516 } else if (callvirt) {
3517 new_key = g_new0 (SignaturePointerPair, 1);
3520 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3524 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3528 /* mono_method_print_code (res); */
3534 * the returned method invokes all methods in a multicast delegate.
3537 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3539 gboolean callvirt = FALSE;
3540 gboolean static_method_with_first_arg_bound = FALSE;
3541 MonoMethod *target_method = NULL;
3542 MonoMethodSignature *sig;
3544 sig = mono_signature_no_pinvoke (method);
3546 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3548 target_method = del->method;
3551 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3552 static_method_with_first_arg_bound = TRUE;
3553 target_method = del->method;
3556 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3560 MonoMethodSignature *ctor_sig;
3561 MonoMethodSignature *sig;
3564 /* protected by the marshal lock, contains CtorSigPair pointers */
3565 static GSList *strsig_list = NULL;
3567 static MonoMethodSignature *
3568 lookup_string_ctor_signature (MonoMethodSignature *sig)
3570 MonoMethodSignature *callsig;
3574 mono_marshal_lock ();
3576 for (item = strsig_list; item; item = item->next) {
3577 cs = (CtorSigPair *)item->data;
3578 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3579 * because it is lock-free.
3581 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3586 mono_marshal_unlock ();
3590 static MonoMethodSignature *
3591 add_string_ctor_signature (MonoMethod *method)
3593 MonoMethodSignature *callsig;
3596 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3597 callsig->ret = &mono_defaults.string_class->byval_arg;
3598 cs = g_new (CtorSigPair, 1);
3600 cs->ctor_sig = mono_method_signature (method);
3602 mono_marshal_lock ();
3603 strsig_list = g_slist_prepend (strsig_list, cs);
3604 mono_marshal_unlock ();
3609 * mono_marshal_get_string_ctor_signature:
3611 * Return the modified signature used by string ctors (they return the newly created
3614 MonoMethodSignature*
3615 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3617 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3619 sig = add_string_ctor_signature (method);
3625 get_runtime_invoke_type (MonoType *t, gboolean ret)
3628 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3630 /* Can't share this with 'I' as that needs another indirection */
3631 return &mono_defaults.int_class->this_arg;
3634 if (MONO_TYPE_IS_REFERENCE (t))
3635 return &mono_defaults.object_class->byval_arg;
3638 /* The result needs to be boxed */
3643 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3646 return &mono_defaults.sbyte_class->byval_arg;
3648 return &mono_defaults.int16_class->byval_arg;
3650 return &mono_defaults.int32_class->byval_arg;
3653 return &mono_defaults.int64_class->byval_arg;
3654 case MONO_TYPE_BOOLEAN:
3655 return &mono_defaults.byte_class->byval_arg;
3656 case MONO_TYPE_CHAR:
3657 return &mono_defaults.uint16_class->byval_arg;
3659 return &mono_defaults.int_class->byval_arg;
3660 case MONO_TYPE_VALUETYPE:
3661 if (t->data.klass->enumtype) {
3662 t = mono_class_enum_basetype (t->data.klass);
3672 * mono_marshal_get_runtime_invoke_sig:
3674 * Return a common signature used for sharing runtime invoke wrappers.
3676 static MonoMethodSignature*
3677 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3679 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3682 res->generic_param_count = 0;
3683 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3684 for (i = 0; i < res->param_count; ++i)
3685 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3691 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3693 /* Can't share wrappers which return a vtype since it needs to be boxed */
3694 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))
3697 return mono_metadata_signature_equal (sig1, sig2);
3705 * Emit the call to the wrapper method from a runtime invoke wrapper.
3708 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3709 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3711 gboolean virtual_, gboolean need_direct_wrapper)
3713 static MonoString *string_dummy = NULL;
3715 int *tmp_nullable_locals;
3716 gboolean void_ret = FALSE;
3717 gboolean string_ctor = method && method->string_ctor;
3719 /* to make it work with our special string constructors */
3720 if (!string_dummy) {
3721 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3722 string_dummy = mono_string_new_wrapper ("dummy");
3726 g_assert (sig->hasthis);
3727 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3732 if (mono_gc_is_moving ()) {
3733 mono_mb_emit_ptr (mb, &string_dummy);
3734 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3736 mono_mb_emit_ptr (mb, string_dummy);
3739 mono_mb_emit_ldarg (mb, 0);
3743 tmp_nullable_locals = g_new0 (int, sig->param_count);
3745 for (i = 0; i < sig->param_count; i++) {
3746 MonoType *t = sig->params [i];
3749 mono_mb_emit_ldarg (mb, 1);
3751 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3752 mono_mb_emit_byte (mb, CEE_ADD);
3756 mono_mb_emit_byte (mb, CEE_LDIND_I);
3757 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3758 * So to make this work we unbox it to a local variablee and push a reference to that.
3760 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3761 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3763 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3764 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3765 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3770 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3771 type = sig->params [i]->type;
3775 case MONO_TYPE_BOOLEAN:
3779 case MONO_TYPE_CHAR:
3788 mono_mb_emit_byte (mb, CEE_LDIND_I);
3789 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3791 case MONO_TYPE_STRING:
3792 case MONO_TYPE_CLASS:
3793 case MONO_TYPE_ARRAY:
3795 case MONO_TYPE_SZARRAY:
3796 case MONO_TYPE_OBJECT:
3797 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3799 case MONO_TYPE_GENERICINST:
3800 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3801 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3806 case MONO_TYPE_VALUETYPE:
3807 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3808 type = mono_class_enum_basetype (t->data.klass)->type;
3811 mono_mb_emit_byte (mb, CEE_LDIND_I);
3812 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3813 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3814 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3815 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3817 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3821 g_assert_not_reached ();
3826 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3827 } else if (need_direct_wrapper) {
3828 mono_mb_emit_op (mb, CEE_CALL, method);
3830 mono_mb_emit_ldarg (mb, 3);
3831 mono_mb_emit_calli (mb, callsig);
3834 if (sig->ret->byref) {
3836 g_assert_not_reached ();
3839 switch (sig->ret->type) {
3840 case MONO_TYPE_VOID:
3844 case MONO_TYPE_BOOLEAN:
3845 case MONO_TYPE_CHAR:
3858 case MONO_TYPE_VALUETYPE:
3859 case MONO_TYPE_TYPEDBYREF:
3860 case MONO_TYPE_GENERICINST:
3861 /* box value types */
3862 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3864 case MONO_TYPE_STRING:
3865 case MONO_TYPE_CLASS:
3866 case MONO_TYPE_ARRAY:
3867 case MONO_TYPE_SZARRAY:
3868 case MONO_TYPE_OBJECT:
3872 /* The result is an IntPtr */
3873 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3876 g_assert_not_reached ();
3880 mono_mb_emit_stloc (mb, loc_res);
3882 /* Convert back nullable-byref arguments */
3883 for (i = 0; i < sig->param_count; i++) {
3884 MonoType *t = sig->params [i];
3887 * Box the result and put it back into the array, the caller will have
3888 * to obtain it from there.
3890 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3891 mono_mb_emit_ldarg (mb, 1);
3892 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3893 mono_mb_emit_byte (mb, CEE_ADD);
3895 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3896 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3898 mono_mb_emit_byte (mb, CEE_STIND_REF);
3902 g_free (tmp_nullable_locals);
3906 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3907 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3908 gboolean virtual_, gboolean need_direct_wrapper)
3911 MonoExceptionClause *clause;
3912 int loc_res, loc_exc;
3914 /* The wrapper looks like this:
3920 * } catch (Exception e) {
3928 /* allocate local 0 (object) tmp */
3929 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3930 /* allocate local 1 (object) exc */
3931 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3933 /* *exc is assumed to be initialized to NULL by the caller */
3935 mono_mb_emit_byte (mb, CEE_LDARG_2);
3936 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3941 labels [1] = mono_mb_get_label (mb);
3942 emit_thread_force_interrupt_checkpoint (mb);
3943 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3945 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3947 /* Add a try clause around the call */
3948 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3949 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3950 clause->data.catch_class = mono_defaults.exception_class;
3951 clause->try_offset = labels [1];
3952 clause->try_len = mono_mb_get_label (mb) - labels [1];
3954 clause->handler_offset = mono_mb_get_label (mb);
3957 mono_mb_emit_stloc (mb, loc_exc);
3958 mono_mb_emit_byte (mb, CEE_LDARG_2);
3959 mono_mb_emit_ldloc (mb, loc_exc);
3960 mono_mb_emit_byte (mb, CEE_STIND_REF);
3962 mono_mb_emit_branch (mb, CEE_LEAVE);
3964 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3966 mono_mb_set_clauses (mb, 1, clause);
3968 mono_mb_patch_branch (mb, labels [2]);
3969 mono_mb_emit_ldloc (mb, loc_res);
3970 mono_mb_emit_byte (mb, CEE_RET);
3975 mono_mb_patch_branch (mb, labels [0]);
3976 emit_thread_force_interrupt_checkpoint (mb);
3977 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3979 mono_mb_emit_ldloc (mb, 0);
3980 mono_mb_emit_byte (mb, CEE_RET);
3985 * generates IL code for the runtime invoke function
3986 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3988 * we also catch exceptions if exc != null
3989 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3990 * it means that the compiled code for METHOD does not have to be looked up
3991 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3992 * its METHOD argument.
3995 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3997 MonoMethodSignature *sig, *csig, *callsig;
3998 MonoMethodBuilder *mb;
3999 GHashTable *cache = NULL;
4000 MonoClass *target_klass;
4001 MonoMethod *res = NULL;
4002 static MonoMethodSignature *cctor_signature = NULL;
4003 static MonoMethodSignature *finalize_signature = NULL;
4005 const char *param_names [16];
4006 gboolean need_direct_wrapper = FALSE;
4011 if (!cctor_signature) {
4012 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4013 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4015 if (!finalize_signature) {
4016 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4017 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4018 finalize_signature->hasthis = 1;
4022 need_direct_wrapper = TRUE;
4025 * Use a separate cache indexed by methods to speed things up and to avoid the
4026 * boundless mempool growth caused by the signature_dup stuff below.
4029 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4031 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4033 res = mono_marshal_find_in_cache (cache, method);
4037 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4038 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4040 * Array Get/Set/Address methods. The JIT implements them using inline code
4041 * so we need to create an invoke wrapper which calls the method directly.
4043 need_direct_wrapper = TRUE;
4046 if (method->string_ctor) {
4047 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4049 callsig = add_string_ctor_signature (method);
4050 /* Can't share this as we push a string as this */
4051 need_direct_wrapper = TRUE;
4053 if (method_is_dynamic (method))
4054 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4056 callsig = mono_method_signature (method);
4059 sig = mono_method_signature (method);
4061 target_klass = get_wrapper_target_class (method->klass->image);
4063 /* Try to share wrappers for non-corlib methods with simple signatures */
4064 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4065 callsig = cctor_signature;
4066 target_klass = mono_defaults.object_class;
4067 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4068 callsig = finalize_signature;
4069 target_klass = mono_defaults.object_class;
4072 if (need_direct_wrapper) {
4073 /* Already searched at the start */
4075 MonoMethodSignature *tmp_sig;
4077 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4078 GHashTable **cache_table = NULL;
4080 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4081 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4083 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4085 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4086 (GCompareFunc)runtime_invoke_signature_equal);
4088 /* from mono_marshal_find_in_cache */
4089 mono_marshal_lock ();
4090 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4091 mono_marshal_unlock ();
4098 /* Make a copy of the signature from the image mempool */
4100 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4104 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4106 csig->ret = &mono_defaults.object_class->byval_arg;
4107 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4108 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4110 csig->params [0] = &mono_defaults.object_class->byval_arg;
4111 csig->params [1] = &mono_defaults.int_class->byval_arg;
4112 csig->params [2] = &mono_defaults.int_class->byval_arg;
4113 csig->params [3] = &mono_defaults.int_class->byval_arg;
4116 /* This is called from runtime code so it has to be cdecl */
4117 csig->call_convention = MONO_CALL_C;
4120 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4121 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4125 param_names [0] = "this";
4126 param_names [1] = "params";
4127 param_names [2] = "exc";
4128 param_names [3] = "method";
4129 mono_mb_set_param_names (mb, param_names);
4131 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4134 if (need_direct_wrapper) {
4136 mb->skip_visibility = 1;
4138 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4139 info->d.runtime_invoke.method = method;
4140 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4142 /* taken from mono_mb_create_and_cache */
4143 mono_marshal_lock ();
4144 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4145 mono_marshal_unlock ();
4147 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4148 info->d.runtime_invoke.sig = callsig;
4150 /* Somebody may have created it before us */
4153 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4155 mono_marshal_lock ();
4156 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4158 GHashTable *direct_cache;
4160 g_hash_table_insert (cache, callsig, res);
4161 /* Can't insert it into wrapper_hash since the key is a signature */
4162 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4164 g_hash_table_insert (direct_cache, method, res);
4166 mono_free_method (newm);
4168 mono_marshal_unlock ();
4171 /* end mono_mb_create_and_cache */
4180 * mono_marshal_get_runtime_invoke_dynamic:
4182 * Return a method which can be used to invoke managed methods from native code
4184 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4185 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4186 * ARGS should point to an architecture specific structure containing
4187 * the arguments and space for the return value.
4188 * The other arguments are the same as for runtime_invoke (), except that
4189 * ARGS should contain the this argument too.
4190 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4191 * is only one copy of it, which is useful in full-aot.
4192 * The wrapper info for the wrapper is a WrapperInfo structure.
4195 mono_marshal_get_runtime_invoke_dynamic (void)
4197 static MonoMethod *method;
4198 MonoMethodSignature *csig;
4199 MonoExceptionClause *clause;
4200 MonoMethodBuilder *mb;
4208 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4210 csig->ret = &mono_defaults.void_class->byval_arg;
4211 csig->params [0] = &mono_defaults.int_class->byval_arg;
4212 csig->params [1] = &mono_defaults.int_class->byval_arg;
4213 csig->params [2] = &mono_defaults.int_class->byval_arg;
4214 csig->params [3] = &mono_defaults.int_class->byval_arg;
4216 name = g_strdup ("runtime_invoke_dynamic");
4217 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4221 /* allocate local 0 (object) tmp */
4222 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4223 /* allocate local 1 (object) exc */
4224 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4226 /* cond set *exc to null */
4227 mono_mb_emit_byte (mb, CEE_LDARG_1);
4228 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4229 mono_mb_emit_byte (mb, 3);
4230 mono_mb_emit_byte (mb, CEE_LDARG_1);
4231 mono_mb_emit_byte (mb, CEE_LDNULL);
4232 mono_mb_emit_byte (mb, CEE_STIND_REF);
4234 emit_thread_force_interrupt_checkpoint (mb);
4236 mono_mb_emit_byte (mb, CEE_LDARG_0);
4237 mono_mb_emit_byte (mb, CEE_LDARG_2);
4238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4239 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4241 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4243 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4244 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4245 clause->try_len = mono_mb_get_label (mb);
4248 clause->data.filter_offset = mono_mb_get_label (mb);
4250 mono_mb_emit_byte (mb, CEE_POP);
4251 mono_mb_emit_byte (mb, CEE_LDARG_1);
4252 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4253 mono_mb_emit_byte (mb, CEE_PREFIX1);
4254 mono_mb_emit_byte (mb, CEE_CGT_UN);
4255 mono_mb_emit_byte (mb, CEE_PREFIX1);
4256 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4258 clause->handler_offset = mono_mb_get_label (mb);
4261 /* store exception */
4262 mono_mb_emit_stloc (mb, 1);
4264 mono_mb_emit_byte (mb, CEE_LDARG_1);
4265 mono_mb_emit_ldloc (mb, 1);
4266 mono_mb_emit_byte (mb, CEE_STIND_REF);
4268 mono_mb_emit_byte (mb, CEE_LDNULL);
4269 mono_mb_emit_stloc (mb, 0);
4271 /* Check for the abort exception */
4272 mono_mb_emit_ldloc (mb, 1);
4273 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4274 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4276 /* Delay the abort exception */
4277 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4279 mono_mb_patch_short_branch (mb, posna);
4280 mono_mb_emit_branch (mb, CEE_LEAVE);
4282 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4284 mono_mb_set_clauses (mb, 1, clause);
4287 mono_mb_patch_branch (mb, pos);
4288 //mono_mb_emit_ldloc (mb, 0);
4289 mono_mb_emit_byte (mb, CEE_RET);
4290 #endif /* DISABLE_JIT */
4292 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4294 mono_marshal_lock ();
4295 /* double-checked locking */
4297 method = mono_mb_create (mb, csig, 16, info);
4299 mono_marshal_unlock ();
4307 * mono_marshal_get_runtime_invoke_for_sig:
4309 * Return a runtime invoke wrapper for a given signature.
4312 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4314 MonoMethodSignature *csig, *callsig;
4315 MonoMethodBuilder *mb;
4317 GHashTable *cache = NULL;
4318 GHashTable **cache_table = NULL;
4319 MonoMethod *res = NULL;
4321 const char *param_names [16];
4324 /* A simplified version of mono_marshal_get_runtime_invoke */
4326 image = mono_defaults.corlib;
4328 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4330 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4332 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4333 (GCompareFunc)runtime_invoke_signature_equal);
4335 /* from mono_marshal_find_in_cache */
4336 mono_marshal_lock ();
4337 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4338 mono_marshal_unlock ();
4345 /* Make a copy of the signature from the image mempool */
4346 callsig = mono_metadata_signature_dup_full (image, callsig);
4348 csig = mono_metadata_signature_alloc (image, 4);
4349 csig->ret = &mono_defaults.object_class->byval_arg;
4350 csig->params [0] = &mono_defaults.object_class->byval_arg;
4351 csig->params [1] = &mono_defaults.int_class->byval_arg;
4352 csig->params [2] = &mono_defaults.int_class->byval_arg;
4353 csig->params [3] = &mono_defaults.int_class->byval_arg;
4356 /* This is called from runtime code so it has to be cdecl */
4357 csig->call_convention = MONO_CALL_C;
4360 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4361 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4365 param_names [0] = "this";
4366 param_names [1] = "params";
4367 param_names [2] = "exc";
4368 param_names [3] = "method";
4369 mono_mb_set_param_names (mb, param_names);
4371 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4374 /* taken from mono_mb_create_and_cache */
4375 mono_marshal_lock ();
4376 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4377 mono_marshal_unlock ();
4379 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4380 info->d.runtime_invoke.sig = callsig;
4382 /* Somebody may have created it before us */
4385 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4387 mono_marshal_lock ();
4388 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4391 g_hash_table_insert (cache, callsig, res);
4393 mono_free_method (newm);
4395 mono_marshal_unlock ();
4398 /* end mono_mb_create_and_cache */
4407 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4409 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4410 klass->name_space, klass->name);
4412 mono_mb_emit_exception_marshal_directive (mb, msg);
4417 * generates IL code for the icall wrapper (the generated method
4418 * calls the unmanaged code in func)
4419 * The wrapper info for the wrapper is a WrapperInfo structure.
4422 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4424 MonoMethodSignature *csig, *csig2;
4425 MonoMethodBuilder *mb;
4430 g_assert (sig->pinvoke);
4432 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4434 mb->method->save_lmf = 1;
4436 /* Add an explicit this argument */
4438 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4440 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4444 mono_mb_emit_byte (mb, CEE_LDARG_0);
4446 for (i = 0; i < sig->param_count; i++)
4447 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4450 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4451 mono_mb_emit_calli (mb, csig2);
4452 if (check_exceptions)
4453 emit_thread_interrupt_checkpoint (mb);
4454 mono_mb_emit_byte (mb, CEE_RET);
4457 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4459 if (csig->call_convention == MONO_CALL_VARARG)
4460 csig->call_convention = 0;
4462 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4463 info->d.icall.func = (gpointer)func;
4464 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4471 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4472 MonoMarshalSpec *spec,
4473 int conv_arg, MonoType **conv_arg_type,
4474 MarshalAction action)
4477 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4478 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4484 static MonoClass *ICustomMarshaler = NULL;
4485 static MonoMethod *cleanup_native, *cleanup_managed;
4486 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4487 MonoMethod *get_instance = NULL;
4488 MonoMethodBuilder *mb = m->mb;
4489 char *exception_msg = NULL;
4493 if (!ICustomMarshaler) {
4494 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4496 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4497 goto handle_exception;
4500 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4501 g_assert (cleanup_native);
4502 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4503 g_assert (cleanup_managed);
4504 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4505 g_assert (marshal_managed_to_native);
4506 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4507 g_assert (marshal_native_to_managed);
4509 mono_memory_barrier ();
4510 ICustomMarshaler = klass;
4513 if (spec->data.custom_data.image)
4514 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4516 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4517 g_assert (mtype != NULL);
4518 mono_error_assert_ok (&error);
4519 mklass = mono_class_from_mono_type (mtype);
4520 g_assert (mklass != NULL);
4522 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4523 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4525 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4527 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4528 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4529 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4530 (get_sig->params [0]->type != MONO_TYPE_STRING))
4531 get_instance = NULL;
4535 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);
4538 /* Throw exception and emit compensation code if neccesary */
4539 if (exception_msg) {
4541 case MARSHAL_ACTION_CONV_IN:
4542 case MARSHAL_ACTION_CONV_RESULT:
4543 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4544 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4545 mono_mb_emit_byte (mb, CEE_POP);
4547 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4548 g_free (exception_msg);
4551 case MARSHAL_ACTION_PUSH:
4552 mono_mb_emit_byte (mb, CEE_LDNULL);
4560 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4561 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4564 case MARSHAL_ACTION_CONV_IN:
4566 case MONO_TYPE_CLASS:
4567 case MONO_TYPE_OBJECT:
4568 case MONO_TYPE_STRING:
4569 case MONO_TYPE_ARRAY:
4570 case MONO_TYPE_SZARRAY:
4571 case MONO_TYPE_VALUETYPE:
4575 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4576 g_assert_not_reached ();
4580 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4582 mono_mb_emit_byte (mb, CEE_LDNULL);
4583 mono_mb_emit_stloc (mb, conv_arg);
4585 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4588 /* Minic MS.NET behavior */
4589 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4592 /* Check for null */
4593 mono_mb_emit_ldarg (mb, argnum);
4595 mono_mb_emit_byte (mb, CEE_LDIND_I);
4596 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4598 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4600 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4602 mono_mb_emit_ldarg (mb, argnum);
4604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4606 if (t->type == MONO_TYPE_VALUETYPE) {
4608 * Since we can't determine the type of the argument, we
4609 * will assume the unmanaged function takes a pointer.
4611 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4613 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4616 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4617 mono_mb_emit_stloc (mb, conv_arg);
4619 mono_mb_patch_branch (mb, pos2);
4622 case MARSHAL_ACTION_CONV_OUT:
4623 /* Check for null */
4624 mono_mb_emit_ldloc (mb, conv_arg);
4625 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4628 mono_mb_emit_ldarg (mb, argnum);
4630 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4632 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4634 mono_mb_emit_ldloc (mb, conv_arg);
4635 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4636 mono_mb_emit_byte (mb, CEE_STIND_REF);
4637 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4638 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4640 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4642 mono_mb_emit_ldloc (mb, conv_arg);
4643 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4645 /* We have nowhere to store the result */
4646 mono_mb_emit_byte (mb, CEE_POP);
4649 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4651 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4653 mono_mb_emit_ldloc (mb, conv_arg);
4655 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4657 mono_mb_patch_branch (mb, pos2);
4660 case MARSHAL_ACTION_PUSH:
4662 mono_mb_emit_ldloc_addr (mb, conv_arg);
4664 mono_mb_emit_ldloc (mb, conv_arg);
4667 case MARSHAL_ACTION_CONV_RESULT:
4668 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4670 mono_mb_emit_stloc (mb, 3);
4672 mono_mb_emit_ldloc (mb, 3);
4673 mono_mb_emit_stloc (mb, loc1);
4675 /* Check for null */
4676 mono_mb_emit_ldloc (mb, 3);
4677 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4679 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4681 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4682 mono_mb_emit_byte (mb, CEE_DUP);
4684 mono_mb_emit_ldloc (mb, 3);
4685 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4686 mono_mb_emit_stloc (mb, 3);
4688 mono_mb_emit_ldloc (mb, loc1);
4689 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4691 mono_mb_patch_branch (mb, pos2);
4694 case MARSHAL_ACTION_MANAGED_CONV_IN:
4695 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4697 mono_mb_emit_byte (mb, CEE_LDNULL);
4698 mono_mb_emit_stloc (mb, conv_arg);
4700 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4703 /* Check for null */
4704 mono_mb_emit_ldarg (mb, argnum);
4706 mono_mb_emit_byte (mb, CEE_LDIND_I);
4707 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4709 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4710 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4712 mono_mb_emit_ldarg (mb, argnum);
4714 mono_mb_emit_byte (mb, CEE_LDIND_I);
4716 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4717 mono_mb_emit_stloc (mb, conv_arg);
4719 mono_mb_patch_branch (mb, pos2);
4722 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4723 g_assert (!t->byref);
4725 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4727 mono_mb_emit_stloc (mb, 3);
4729 mono_mb_emit_ldloc (mb, 3);
4730 mono_mb_emit_stloc (mb, loc1);
4732 /* Check for null */
4733 mono_mb_emit_ldloc (mb, 3);
4734 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4736 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4737 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4738 mono_mb_emit_byte (mb, CEE_DUP);
4740 mono_mb_emit_ldloc (mb, 3);
4741 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4742 mono_mb_emit_stloc (mb, 3);
4744 mono_mb_emit_ldloc (mb, loc1);
4745 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4747 mono_mb_patch_branch (mb, pos2);
4750 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4752 /* Check for null */
4753 mono_mb_emit_ldloc (mb, conv_arg);
4754 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4757 mono_mb_emit_ldarg (mb, argnum);
4759 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4761 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4763 mono_mb_emit_ldloc (mb, conv_arg);
4764 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4765 mono_mb_emit_byte (mb, CEE_STIND_I);
4768 /* Call CleanUpManagedData */
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, cleanup_managed);
4776 mono_mb_patch_branch (mb, pos2);
4780 g_assert_not_reached ();
4788 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4789 MonoMarshalSpec *spec,
4790 int conv_arg, MonoType **conv_arg_type,
4791 MarshalAction action)
4794 MonoMethodBuilder *mb = m->mb;
4797 case MARSHAL_ACTION_CONV_IN: {
4798 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4800 g_assert (t->type == MONO_TYPE_OBJECT);
4801 g_assert (!t->byref);
4803 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4804 mono_mb_emit_ldarg (mb, argnum);
4805 mono_mb_emit_icon (mb, encoding);
4806 mono_mb_emit_icon (mb, t->attrs);
4807 mono_mb_emit_icall (mb, mono_marshal_asany);
4808 mono_mb_emit_stloc (mb, conv_arg);
4812 case MARSHAL_ACTION_PUSH:
4813 mono_mb_emit_ldloc (mb, conv_arg);
4816 case MARSHAL_ACTION_CONV_OUT: {
4817 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4819 mono_mb_emit_ldarg (mb, argnum);
4820 mono_mb_emit_ldloc (mb, conv_arg);
4821 mono_mb_emit_icon (mb, encoding);
4822 mono_mb_emit_icon (mb, t->attrs);
4823 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4828 g_assert_not_reached ();
4835 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4836 MonoMarshalSpec *spec,
4837 int conv_arg, MonoType **conv_arg_type,
4838 MarshalAction action)
4841 MonoMethodBuilder *mb = m->mb;
4842 MonoClass *klass, *date_time_class;
4845 klass = mono_class_from_mono_type (t);
4847 date_time_class = mono_class_get_date_time_class ();
4850 case MARSHAL_ACTION_CONV_IN:
4851 if (klass == date_time_class) {
4852 /* Convert it to an OLE DATE type */
4853 static MonoMethod *to_oadate;
4856 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4857 g_assert (to_oadate);
4859 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4862 mono_mb_emit_ldarg (mb, argnum);
4863 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4866 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4868 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4870 mono_mb_emit_ldarg_addr (mb, argnum);
4871 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4872 mono_mb_emit_stloc (mb, conv_arg);
4876 mono_mb_patch_branch (mb, pos);
4880 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4881 klass->blittable || klass->enumtype)
4884 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4886 /* store the address of the source into local variable 0 */
4888 mono_mb_emit_ldarg (mb, argnum);
4890 mono_mb_emit_ldarg_addr (mb, argnum);
4892 mono_mb_emit_stloc (mb, 0);
4894 /* allocate space for the native struct and
4895 * store the address into local variable 1 (dest) */
4896 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4897 mono_mb_emit_byte (mb, CEE_PREFIX1);
4898 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4899 mono_mb_emit_stloc (mb, conv_arg);
4902 mono_mb_emit_ldloc (mb, 0);
4903 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4906 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4908 mono_mb_emit_ldloc (mb, conv_arg);
4909 mono_mb_emit_stloc (mb, 1);
4911 /* emit valuetype conversion code */
4912 emit_struct_conv (mb, klass, FALSE);
4916 mono_mb_patch_branch (mb, pos);
4919 case MARSHAL_ACTION_PUSH:
4920 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4922 g_assert (!t->byref);
4924 /* Have to change the signature since the vtype is passed byref */
4925 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4927 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4928 klass->blittable || klass->enumtype)
4929 mono_mb_emit_ldarg_addr (mb, argnum);
4931 mono_mb_emit_ldloc (mb, conv_arg);
4935 if (klass == date_time_class) {
4937 mono_mb_emit_ldloc_addr (mb, conv_arg);
4939 mono_mb_emit_ldloc (mb, conv_arg);
4943 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4944 klass->blittable || klass->enumtype) {
4945 mono_mb_emit_ldarg (mb, argnum);
4948 mono_mb_emit_ldloc (mb, conv_arg);
4950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4951 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4955 case MARSHAL_ACTION_CONV_OUT:
4956 if (klass == date_time_class) {
4957 /* Convert from an OLE DATE type */
4958 static MonoMethod *from_oadate;
4963 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4965 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4966 g_assert (from_oadate);
4968 mono_mb_emit_ldarg (mb, argnum);
4969 mono_mb_emit_ldloc (mb, conv_arg);
4970 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4971 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4976 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4977 klass->blittable || klass->enumtype)
4981 /* dst = argument */
4982 mono_mb_emit_ldarg (mb, argnum);
4983 mono_mb_emit_stloc (mb, 1);
4985 mono_mb_emit_ldloc (mb, 1);
4986 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4988 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4989 /* src = tmp_locals [i] */
4990 mono_mb_emit_ldloc (mb, conv_arg);
4991 mono_mb_emit_stloc (mb, 0);
4993 /* emit valuetype conversion code */
4994 emit_struct_conv (mb, klass, TRUE);
4998 emit_struct_free (mb, klass, conv_arg);
5001 mono_mb_patch_branch (mb, pos);
5004 case MARSHAL_ACTION_CONV_RESULT:
5005 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5007 mono_mb_emit_stloc (mb, 3);
5011 /* load pointer to returned value type */
5012 g_assert (m->vtaddr_var);
5013 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5014 /* store the address of the source into local variable 0 */
5015 mono_mb_emit_stloc (mb, 0);
5017 mono_mb_emit_ldloc_addr (mb, 3);
5018 mono_mb_emit_stloc (mb, 1);
5020 /* emit valuetype conversion code */
5021 emit_struct_conv (mb, klass, TRUE);
5024 case MARSHAL_ACTION_MANAGED_CONV_IN:
5025 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5026 klass->blittable || klass->enumtype) {
5031 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5033 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5037 mono_mb_emit_ldarg (mb, argnum);
5039 mono_mb_emit_ldarg_addr (mb, argnum);
5040 mono_mb_emit_stloc (mb, 0);
5043 mono_mb_emit_ldloc (mb, 0);
5044 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5047 mono_mb_emit_ldloc_addr (mb, conv_arg);
5048 mono_mb_emit_stloc (mb, 1);
5050 /* emit valuetype conversion code */
5051 emit_struct_conv (mb, klass, TRUE);
5054 mono_mb_patch_branch (mb, pos);
5057 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5058 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5059 klass->blittable || klass->enumtype) {
5063 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5066 /* Check for null */
5067 mono_mb_emit_ldarg (mb, argnum);
5068 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5071 mono_mb_emit_ldloc_addr (mb, conv_arg);
5072 mono_mb_emit_stloc (mb, 0);
5075 mono_mb_emit_ldarg (mb, argnum);
5076 mono_mb_emit_stloc (mb, 1);
5078 /* emit valuetype conversion code */
5079 emit_struct_conv (mb, klass, FALSE);
5081 mono_mb_patch_branch (mb, pos2);
5084 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5085 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5086 klass->blittable || klass->enumtype) {
5087 mono_mb_emit_stloc (mb, 3);
5092 /* load pointer to returned value type */
5093 g_assert (m->vtaddr_var);
5094 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5096 /* store the address of the source into local variable 0 */
5097 mono_mb_emit_stloc (mb, 0);
5098 /* allocate space for the native struct and
5099 * store the address into dst_ptr */
5100 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5101 m->retobj_class = klass;
5102 g_assert (m->retobj_var);
5103 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5104 mono_mb_emit_byte (mb, CEE_CONV_I);
5105 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5106 mono_mb_emit_stloc (mb, 1);
5107 mono_mb_emit_ldloc (mb, 1);
5108 mono_mb_emit_stloc (mb, m->retobj_var);
5110 /* emit valuetype conversion code */
5111 emit_struct_conv (mb, klass, FALSE);
5115 g_assert_not_reached ();
5122 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5123 MonoMarshalSpec *spec,
5124 int conv_arg, MonoType **conv_arg_type,
5125 MarshalAction action)
5129 case MARSHAL_ACTION_CONV_IN:
5130 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5132 case MARSHAL_ACTION_MANAGED_CONV_IN:
5133 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5137 MonoMethodBuilder *mb = m->mb;
5138 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5139 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5143 case MARSHAL_ACTION_CONV_IN:
5144 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5145 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5148 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5151 mono_mb_emit_ldarg (mb, argnum);
5152 mono_mb_emit_byte (mb, CEE_LDIND_I);
5154 mono_mb_emit_ldarg (mb, argnum);
5157 if (conv == MONO_MARSHAL_CONV_INVALID) {
5158 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5159 mono_mb_emit_exception_marshal_directive (mb, msg);
5161 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5163 mono_mb_emit_stloc (mb, conv_arg);
5167 case MARSHAL_ACTION_CONV_OUT:
5168 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5169 if (conv == MONO_MARSHAL_CONV_INVALID) {
5170 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5171 mono_mb_emit_exception_marshal_directive (mb, msg);
5175 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5176 static MonoMethod *m;
5179 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5184 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5185 mono_mb_emit_exception_marshal_directive (mb, msg);
5190 * Have to allocate a new string with the same length as the original, and
5191 * copy the contents of the buffer pointed to by CONV_ARG into it.
5193 g_assert (t->byref);
5194 mono_mb_emit_ldarg (mb, argnum);
5195 mono_mb_emit_ldloc (mb, conv_arg);
5196 mono_mb_emit_ldarg (mb, argnum);
5197 mono_mb_emit_byte (mb, CEE_LDIND_I);
5198 mono_mb_emit_managed_call (mb, m, NULL);
5199 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5200 mono_mb_emit_byte (mb, CEE_STIND_REF);
5201 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5203 mono_mb_emit_ldarg (mb, argnum);
5204 mono_mb_emit_ldloc (mb, conv_arg);
5205 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5206 mono_mb_emit_byte (mb, stind_op);
5211 mono_mb_emit_ldloc (mb, conv_arg);
5212 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5213 mono_mb_emit_icall (mb, mono_free_bstr);
5215 mono_mb_emit_icall (mb, mono_marshal_free);
5219 case MARSHAL_ACTION_PUSH:
5220 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5221 mono_mb_emit_ldloc_addr (mb, conv_arg);
5223 mono_mb_emit_ldloc (mb, conv_arg);
5226 case MARSHAL_ACTION_CONV_RESULT:
5227 mono_mb_emit_stloc (mb, 0);
5229 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5230 if (conv == MONO_MARSHAL_CONV_INVALID) {
5231 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5232 mono_mb_emit_exception_marshal_directive (mb, msg);
5236 mono_mb_emit_ldloc (mb, 0);
5237 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5238 mono_mb_emit_stloc (mb, 3);
5240 /* free the string */
5241 mono_mb_emit_ldloc (mb, 0);
5242 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5243 mono_mb_emit_icall (mb, mono_free_bstr);
5245 mono_mb_emit_icall (mb, mono_marshal_free);
5248 case MARSHAL_ACTION_MANAGED_CONV_IN:
5249 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5251 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5254 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5258 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5259 if (conv == MONO_MARSHAL_CONV_INVALID) {
5260 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5261 mono_mb_emit_exception_marshal_directive (mb, msg);
5265 mono_mb_emit_ldarg (mb, argnum);
5267 mono_mb_emit_byte (mb, CEE_LDIND_I);
5268 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5269 mono_mb_emit_stloc (mb, conv_arg);
5272 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5276 mono_mb_emit_ldarg (mb, argnum);
5277 mono_mb_emit_ldloc (mb, conv_arg);
5278 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5279 mono_mb_emit_byte (mb, stind_op);
5284 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5285 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5286 /* We need to make a copy so the caller is able to free it */
5287 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5289 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5290 mono_mb_emit_stloc (mb, 3);
5294 g_assert_not_reached ();
5302 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5303 MonoMarshalSpec *spec, int conv_arg,
5304 MonoType **conv_arg_type, MarshalAction action)
5307 if (action == MARSHAL_ACTION_CONV_IN)
5308 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5310 MonoMethodBuilder *mb = m->mb;
5313 case MARSHAL_ACTION_CONV_IN: {
5314 MonoType *intptr_type;
5315 int dar_release_slot, pos;
5317 intptr_type = &mono_defaults.int_class->byval_arg;
5318 conv_arg = mono_mb_add_local (mb, intptr_type);
5319 *conv_arg_type = intptr_type;
5321 if (!sh_dangerous_add_ref)
5322 init_safe_handle ();
5324 mono_mb_emit_ldarg (mb, argnum);
5325 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5326 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5328 mono_mb_patch_branch (mb, pos);
5331 * My tests in show that ref SafeHandles are not really
5332 * passed as ref objects. Instead a NULL is passed as the
5335 mono_mb_emit_icon (mb, 0);
5336 mono_mb_emit_stloc (mb, conv_arg);
5340 /* Create local to hold the ref parameter to DangerousAddRef */
5341 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5343 /* set release = false; */
5344 mono_mb_emit_icon (mb, 0);
5345 mono_mb_emit_stloc (mb, dar_release_slot);
5347 /* safehandle.DangerousAddRef (ref release) */
5348 mono_mb_emit_ldarg (mb, argnum);
5349 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5350 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5352 /* Pull the handle field from SafeHandle */
5353 mono_mb_emit_ldarg (mb, argnum);
5354 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5355 mono_mb_emit_byte (mb, CEE_LDIND_I);
5356 mono_mb_emit_stloc (mb, conv_arg);
5361 case MARSHAL_ACTION_PUSH:
5363 mono_mb_emit_ldloc_addr (mb, conv_arg);
5365 mono_mb_emit_ldloc (mb, conv_arg);
5368 case MARSHAL_ACTION_CONV_OUT: {
5369 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5370 int dar_release_slot = conv_arg + 1;
5373 if (!sh_dangerous_release)
5374 init_safe_handle ();
5380 * My tests indicate that ref SafeHandles parameters are not actually
5381 * passed by ref, but instead a new Handle is created regardless of
5382 * whether a change happens in the unmanaged side.
5384 * Also, the Handle is created before calling into unmanaged code,
5385 * but we do not support that mechanism (getting to the original
5386 * handle) and it makes no difference where we create this
5388 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5390 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5393 /* refval = new SafeHandleDerived ()*/
5394 mono_mb_emit_ldarg (mb, argnum);
5395 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5396 mono_mb_emit_byte (mb, CEE_STIND_REF);
5398 /* refval.handle = returned_handle */
5399 mono_mb_emit_ldarg (mb, argnum);
5400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5402 mono_mb_emit_ldloc (mb, conv_arg);
5403 mono_mb_emit_byte (mb, CEE_STIND_I);
5405 mono_mb_emit_ldloc (mb, dar_release_slot);
5406 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5407 mono_mb_emit_ldarg (mb, argnum);
5408 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5409 mono_mb_patch_branch (mb, label_next);
5414 case MARSHAL_ACTION_CONV_RESULT: {
5415 MonoMethod *ctor = NULL;
5416 int intptr_handle_slot;
5418 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5419 mono_mb_emit_byte (mb, CEE_POP);
5420 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5424 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5426 mono_mb_emit_byte (mb, CEE_POP);
5427 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5430 /* Store the IntPtr results into a local */
5431 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5432 mono_mb_emit_stloc (mb, intptr_handle_slot);
5434 /* Create return value */
5435 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5436 mono_mb_emit_stloc (mb, 3);
5438 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5439 mono_mb_emit_ldloc (mb, 3);
5440 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5441 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5442 mono_mb_emit_byte (mb, CEE_STIND_I);
5446 case MARSHAL_ACTION_MANAGED_CONV_IN:
5447 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5450 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5451 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5454 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5455 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5458 printf ("Unhandled case for MarshalAction: %d\n", action);
5466 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5467 MonoMarshalSpec *spec, int conv_arg,
5468 MonoType **conv_arg_type, MarshalAction action)
5471 if (action == MARSHAL_ACTION_CONV_IN)
5472 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5474 MonoMethodBuilder *mb = m->mb;
5477 case MARSHAL_ACTION_CONV_IN: {
5478 MonoType *intptr_type;
5480 intptr_type = &mono_defaults.int_class->byval_arg;
5481 conv_arg = mono_mb_add_local (mb, intptr_type);
5482 *conv_arg_type = intptr_type;
5485 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5486 mono_mb_emit_exception_marshal_directive (mb, msg);
5489 mono_mb_emit_ldarg_addr (mb, argnum);
5490 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5491 mono_mb_emit_byte (mb, CEE_ADD);
5492 mono_mb_emit_byte (mb, CEE_LDIND_I);
5493 mono_mb_emit_stloc (mb, conv_arg);
5497 case MARSHAL_ACTION_PUSH:
5498 mono_mb_emit_ldloc (mb, conv_arg);
5501 case MARSHAL_ACTION_CONV_OUT: {
5502 /* no resource release required */
5506 case MARSHAL_ACTION_CONV_RESULT: {
5507 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5508 mono_mb_emit_exception_marshal_directive (mb, msg);
5512 case MARSHAL_ACTION_MANAGED_CONV_IN:
5513 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5516 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5517 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5520 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5521 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5524 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5532 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5533 MonoMarshalSpec *spec,
5534 int conv_arg, MonoType **conv_arg_type,
5535 MarshalAction action)
5538 if (action == MARSHAL_ACTION_CONV_IN)
5539 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5541 MonoMethodBuilder *mb = m->mb;
5542 MonoClass *klass = mono_class_from_mono_type (t);
5546 case MARSHAL_ACTION_CONV_IN:
5547 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5548 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5550 m->orig_conv_args [argnum] = 0;
5552 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5553 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5554 mono_mb_emit_exception_marshal_directive (mb, msg);
5558 if (klass->delegate) {
5560 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5561 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5562 mono_mb_emit_exception_marshal_directive (mb, msg);
5564 mono_mb_emit_byte (mb, CEE_LDNULL);
5565 mono_mb_emit_stloc (mb, conv_arg);
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5569 mono_mb_emit_stloc (mb, conv_arg);
5571 } else if (klass == mono_defaults.stringbuilder_class) {
5572 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5573 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5577 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5578 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5579 mono_mb_emit_exception_marshal_directive (mb, msg);
5585 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5588 if (conv == MONO_MARSHAL_CONV_INVALID) {
5589 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5590 mono_mb_emit_exception_marshal_directive (mb, msg);
5594 mono_mb_emit_ldarg (mb, argnum);
5596 mono_mb_emit_byte (mb, CEE_LDIND_I);
5598 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5599 mono_mb_emit_stloc (mb, conv_arg);
5600 } else if (klass->blittable) {
5601 mono_mb_emit_byte (mb, CEE_LDNULL);
5602 mono_mb_emit_stloc (mb, conv_arg);
5604 mono_mb_emit_ldarg (mb, argnum);
5605 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5607 mono_mb_emit_ldarg (mb, argnum);
5608 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5609 mono_mb_emit_stloc (mb, conv_arg);
5611 mono_mb_patch_branch (mb, pos);
5614 mono_mb_emit_byte (mb, CEE_LDNULL);
5615 mono_mb_emit_stloc (mb, conv_arg);
5618 /* we dont need any conversions for out parameters */
5619 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5622 mono_mb_emit_ldarg (mb, argnum);
5623 mono_mb_emit_byte (mb, CEE_LDIND_I);
5626 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5628 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5631 /* store the address of the source into local variable 0 */
5632 mono_mb_emit_stloc (mb, 0);
5633 mono_mb_emit_ldloc (mb, 0);
5634 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5636 /* allocate space for the native struct and store the address */
5637 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5638 mono_mb_emit_byte (mb, CEE_PREFIX1);
5639 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5640 mono_mb_emit_stloc (mb, conv_arg);
5643 /* Need to store the original buffer so we can free it later */
5644 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5645 mono_mb_emit_ldloc (mb, conv_arg);
5646 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5649 /* set the src_ptr */
5650 mono_mb_emit_ldloc (mb, 0);
5651 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5652 mono_mb_emit_stloc (mb, 0);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5656 mono_mb_emit_stloc (mb, 1);
5658 /* emit valuetype conversion code */
5659 emit_struct_conv (mb, klass, FALSE);
5661 mono_mb_patch_branch (mb, pos);
5665 case MARSHAL_ACTION_CONV_OUT:
5666 if (klass == mono_defaults.stringbuilder_class) {
5668 MonoMarshalNative encoding;
5669 MonoMarshalConv conv;
5671 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5672 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5674 g_assert (encoding != -1);
5677 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5681 mono_mb_emit_ldarg (mb, argnum);
5682 mono_mb_emit_ldloc (mb, conv_arg);
5685 case MONO_NATIVE_LPWSTR:
5686 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5688 case MONO_NATIVE_LPSTR:
5689 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5692 g_assert_not_reached ();
5695 mono_mb_emit_byte (mb, CEE_STIND_REF);
5697 mono_mb_emit_ldarg (mb, argnum);
5698 mono_mb_emit_ldloc (mb, conv_arg);
5700 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5704 mono_mb_emit_ldloc (mb, conv_arg);
5705 mono_mb_emit_icall (mb, mono_marshal_free);
5710 if (klass->delegate) {
5712 mono_mb_emit_ldarg (mb, argnum);
5713 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5714 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5717 mono_mb_emit_byte (mb, CEE_STIND_REF);
5722 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5723 /* allocate a new object */
5724 mono_mb_emit_ldarg (mb, argnum);
5725 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5726 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5727 mono_mb_emit_byte (mb, CEE_STIND_REF);
5730 /* dst = *argument */
5731 mono_mb_emit_ldarg (mb, argnum);
5734 mono_mb_emit_byte (mb, CEE_LDIND_I);
5736 mono_mb_emit_stloc (mb, 1);
5738 mono_mb_emit_ldloc (mb, 1);
5739 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5741 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5742 mono_mb_emit_ldloc (mb, 1);
5743 mono_mb_emit_icon (mb, sizeof (MonoObject));
5744 mono_mb_emit_byte (mb, CEE_ADD);
5745 mono_mb_emit_stloc (mb, 1);
5747 /* src = tmp_locals [i] */
5748 mono_mb_emit_ldloc (mb, conv_arg);
5749 mono_mb_emit_stloc (mb, 0);
5751 /* emit valuetype conversion code */
5752 emit_struct_conv (mb, klass, TRUE);
5754 /* Free the structure returned by the native code */
5755 emit_struct_free (mb, klass, conv_arg);
5757 if (m->orig_conv_args [argnum]) {
5759 * If the native function changed the pointer, then free
5760 * the original structure plus the new pointer.
5762 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5763 mono_mb_emit_ldloc (mb, conv_arg);
5764 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5766 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5767 g_assert (m->orig_conv_args [argnum]);
5769 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5772 mono_mb_emit_ldloc (mb, conv_arg);
5773 mono_mb_emit_icall (mb, mono_marshal_free);
5775 mono_mb_patch_branch (mb, pos2);
5779 /* Free the original structure passed to native code */
5780 emit_struct_free (mb, klass, conv_arg);
5782 mono_mb_patch_branch (mb, pos);
5785 case MARSHAL_ACTION_PUSH:
5787 mono_mb_emit_ldloc_addr (mb, conv_arg);
5789 mono_mb_emit_ldloc (mb, conv_arg);
5792 case MARSHAL_ACTION_CONV_RESULT:
5793 if (klass->delegate) {
5794 g_assert (!t->byref);
5795 mono_mb_emit_stloc (mb, 0);
5796 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5797 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5798 mono_mb_emit_ldloc (mb, 0);
5799 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5800 mono_mb_emit_stloc (mb, 3);
5803 mono_mb_emit_stloc (mb, 0);
5805 /* Make a copy since emit_conv modifies local 0 */
5806 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5807 mono_mb_emit_ldloc (mb, 0);
5808 mono_mb_emit_stloc (mb, loc);
5810 mono_mb_emit_byte (mb, CEE_LDNULL);
5811 mono_mb_emit_stloc (mb, 3);
5813 mono_mb_emit_ldloc (mb, 0);
5814 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5816 /* allocate result object */
5818 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5819 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5820 mono_mb_emit_stloc (mb, 3);
5824 mono_mb_emit_ldloc (mb, 3);
5825 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5826 mono_mb_emit_stloc (mb, 1);
5828 /* emit conversion code */
5829 emit_struct_conv (mb, klass, TRUE);
5831 emit_struct_free (mb, klass, loc);
5833 /* Free the pointer allocated by unmanaged code */
5834 mono_mb_emit_ldloc (mb, loc);
5835 mono_mb_emit_icall (mb, mono_marshal_free);
5836 mono_mb_patch_branch (mb, pos);
5840 case MARSHAL_ACTION_MANAGED_CONV_IN:
5841 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5843 if (klass->delegate) {
5844 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5845 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5846 mono_mb_emit_ldarg (mb, argnum);
5848 mono_mb_emit_byte (mb, CEE_LDIND_I);
5849 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5850 mono_mb_emit_stloc (mb, conv_arg);
5854 if (klass == mono_defaults.stringbuilder_class) {
5855 MonoMarshalNative encoding;
5857 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5860 g_assert (encoding == MONO_NATIVE_LPSTR);
5862 g_assert (!t->byref);
5863 g_assert (encoding != -1);
5865 mono_mb_emit_ldarg (mb, argnum);
5866 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5867 mono_mb_emit_stloc (mb, conv_arg);
5871 /* The class can not have an automatic layout */
5872 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5873 mono_mb_emit_auto_layout_exception (mb, klass);
5877 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5878 mono_mb_emit_byte (mb, CEE_LDNULL);
5879 mono_mb_emit_stloc (mb, conv_arg);
5884 mono_mb_emit_ldarg (mb, argnum);
5888 /* Check for NULL and raise an exception */
5889 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5891 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5893 mono_mb_patch_branch (mb, pos2);
5894 mono_mb_emit_ldarg (mb, argnum);
5895 mono_mb_emit_byte (mb, CEE_LDIND_I);
5898 mono_mb_emit_stloc (mb, 0);
5900 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5901 mono_mb_emit_stloc (mb, conv_arg);
5903 mono_mb_emit_ldloc (mb, 0);
5904 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5906 /* Create and set dst */
5907 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5908 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5909 mono_mb_emit_stloc (mb, conv_arg);
5910 mono_mb_emit_ldloc (mb, conv_arg);
5911 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5912 mono_mb_emit_stloc (mb, 1);
5914 /* emit valuetype conversion code */
5915 emit_struct_conv (mb, klass, TRUE);
5917 mono_mb_patch_branch (mb, pos);
5920 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5921 if (klass->delegate) {
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_ldloc (mb, conv_arg);
5926 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5927 mono_mb_emit_byte (mb, stind_op);
5933 /* Check for null */
5934 mono_mb_emit_ldloc (mb, conv_arg);
5935 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5936 mono_mb_emit_ldarg (mb, argnum);
5937 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5938 mono_mb_emit_byte (mb, CEE_STIND_REF);
5939 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5941 mono_mb_patch_branch (mb, pos);
5944 mono_mb_emit_ldloc (mb, conv_arg);
5945 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5946 mono_mb_emit_stloc (mb, 0);
5948 /* Allocate and set dest */
5949 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5950 mono_mb_emit_byte (mb, CEE_CONV_I);
5951 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5952 mono_mb_emit_stloc (mb, 1);
5954 /* Update argument pointer */
5955 mono_mb_emit_ldarg (mb, argnum);
5956 mono_mb_emit_ldloc (mb, 1);
5957 mono_mb_emit_byte (mb, CEE_STIND_I);
5959 /* emit valuetype conversion code */
5960 emit_struct_conv (mb, klass, FALSE);
5962 mono_mb_patch_branch (mb, pos2);
5963 } else if (klass == mono_defaults.stringbuilder_class) {
5964 // FIXME: What to do here ?
5966 /* byval [Out] marshalling */
5968 /* FIXME: Handle null */
5971 mono_mb_emit_ldloc (mb, conv_arg);
5972 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5973 mono_mb_emit_stloc (mb, 0);
5976 mono_mb_emit_ldarg (mb, argnum);
5977 mono_mb_emit_stloc (mb, 1);
5979 /* emit valuetype conversion code */
5980 emit_struct_conv (mb, klass, FALSE);
5984 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5985 if (klass->delegate) {
5986 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5987 mono_mb_emit_stloc (mb, 3);
5991 /* The class can not have an automatic layout */
5992 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5993 mono_mb_emit_auto_layout_exception (mb, klass);
5997 mono_mb_emit_stloc (mb, 0);
5998 /* Check for null */
5999 mono_mb_emit_ldloc (mb, 0);
6000 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6001 mono_mb_emit_byte (mb, CEE_LDNULL);
6002 mono_mb_emit_stloc (mb, 3);
6003 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6005 mono_mb_patch_branch (mb, pos);
6008 mono_mb_emit_ldloc (mb, 0);
6009 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6010 mono_mb_emit_stloc (mb, 0);
6012 /* Allocate and set dest */
6013 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6014 mono_mb_emit_byte (mb, CEE_CONV_I);
6015 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6016 mono_mb_emit_byte (mb, CEE_DUP);
6017 mono_mb_emit_stloc (mb, 1);
6018 mono_mb_emit_stloc (mb, 3);
6020 emit_struct_conv (mb, klass, FALSE);
6022 mono_mb_patch_branch (mb, pos2);
6026 g_assert_not_reached ();
6037 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6038 MonoMarshalSpec *spec,
6039 int conv_arg, MonoType **conv_arg_type,
6040 MarshalAction action)
6042 MonoMethodBuilder *mb = m->mb;
6043 static MonoMethod *get_object_for_native_variant = NULL;
6044 static MonoMethod *get_native_variant_for_object = NULL;
6046 if (!get_object_for_native_variant)
6047 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6048 g_assert (get_object_for_native_variant);
6050 if (!get_native_variant_for_object)
6051 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6052 g_assert (get_native_variant_for_object);
6055 case MARSHAL_ACTION_CONV_IN: {
6056 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6059 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6061 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6063 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6066 mono_mb_emit_ldarg (mb, argnum);
6068 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6069 mono_mb_emit_ldloc_addr (mb, conv_arg);
6070 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6074 case MARSHAL_ACTION_CONV_OUT: {
6075 static MonoMethod *variant_clear = NULL;
6078 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6079 g_assert (variant_clear);
6082 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6083 mono_mb_emit_ldarg (mb, argnum);
6084 mono_mb_emit_ldloc_addr (mb, conv_arg);
6085 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6086 mono_mb_emit_byte (mb, CEE_STIND_REF);
6089 mono_mb_emit_ldloc_addr (mb, conv_arg);
6090 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6094 case MARSHAL_ACTION_PUSH:
6096 mono_mb_emit_ldloc_addr (mb, conv_arg);
6098 mono_mb_emit_ldloc (mb, conv_arg);
6101 case MARSHAL_ACTION_CONV_RESULT: {
6102 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6103 mono_mb_emit_exception_marshal_directive (mb, msg);
6107 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6108 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6111 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6113 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6115 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6119 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_ldarg_addr (mb, argnum);
6122 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6123 mono_mb_emit_stloc (mb, conv_arg);
6127 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6128 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6129 mono_mb_emit_ldloc (mb, conv_arg);
6130 mono_mb_emit_ldarg (mb, argnum);
6131 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6136 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6137 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6138 mono_mb_emit_exception_marshal_directive (mb, msg);
6143 g_assert_not_reached ();
6149 #endif /* DISABLE_COM */
6150 #endif /* DISABLE_JIT */
6153 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6155 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6156 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6158 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6160 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6172 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6173 MonoMarshalSpec *spec,
6174 int conv_arg, MonoType **conv_arg_type,
6175 MarshalAction action)
6179 case MARSHAL_ACTION_CONV_IN:
6180 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6182 case MARSHAL_ACTION_MANAGED_CONV_IN:
6183 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6187 MonoMethodBuilder *mb = m->mb;
6188 MonoClass *klass = mono_class_from_mono_type (t);
6189 gboolean need_convert, need_free;
6190 MonoMarshalNative encoding;
6192 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6195 case MARSHAL_ACTION_CONV_IN:
6196 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6197 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6199 if (klass->element_class->blittable) {
6200 mono_mb_emit_ldarg (mb, argnum);
6202 mono_mb_emit_byte (mb, CEE_LDIND_I);
6203 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6204 mono_mb_emit_stloc (mb, conv_arg);
6207 guint32 label1, label2, label3;
6208 int index_var, src_var, dest_ptr, esize;
6209 MonoMarshalConv conv;
6210 gboolean is_string = FALSE;
6212 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6214 eklass = klass->element_class;
6216 if (eklass == mono_defaults.string_class) {
6218 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6220 else if (eklass == mono_defaults.stringbuilder_class) {
6222 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6225 conv = MONO_MARSHAL_CONV_INVALID;
6227 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6228 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6229 mono_mb_emit_exception_marshal_directive (mb, msg);
6233 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6234 mono_mb_emit_ldarg (mb, argnum);
6236 mono_mb_emit_byte (mb, CEE_LDIND_I);
6237 mono_mb_emit_stloc (mb, src_var);
6240 mono_mb_emit_ldloc (mb, src_var);
6241 mono_mb_emit_stloc (mb, conv_arg);
6242 mono_mb_emit_ldloc (mb, src_var);
6243 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6246 esize = sizeof (gpointer);
6247 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6248 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6250 esize = mono_class_native_size (eklass, NULL);
6252 /* allocate space for the native struct and store the address */
6253 mono_mb_emit_icon (mb, esize);
6254 mono_mb_emit_ldloc (mb, src_var);
6255 mono_mb_emit_byte (mb, CEE_LDLEN);
6257 if (eklass == mono_defaults.string_class) {
6258 /* Make the array bigger for the terminating null */
6259 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6260 mono_mb_emit_byte (mb, CEE_ADD);
6262 mono_mb_emit_byte (mb, CEE_MUL);
6263 mono_mb_emit_byte (mb, CEE_PREFIX1);
6264 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6265 mono_mb_emit_stloc (mb, conv_arg);
6267 mono_mb_emit_ldloc (mb, conv_arg);
6268 mono_mb_emit_stloc (mb, dest_ptr);
6270 /* Emit marshalling loop */
6271 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6272 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6273 mono_mb_emit_stloc (mb, index_var);
6274 label2 = mono_mb_get_label (mb);
6275 mono_mb_emit_ldloc (mb, index_var);
6276 mono_mb_emit_ldloc (mb, src_var);
6277 mono_mb_emit_byte (mb, CEE_LDLEN);
6278 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6280 /* Emit marshalling code */
6284 mono_mb_emit_ldloc (mb, dest_ptr);
6285 mono_mb_emit_ldloc (mb, src_var);
6286 mono_mb_emit_ldloc (mb, index_var);
6287 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6288 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6289 mono_mb_emit_byte (mb, stind_op);
6291 /* set the src_ptr */
6292 mono_mb_emit_ldloc (mb, src_var);
6293 mono_mb_emit_ldloc (mb, index_var);
6294 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6295 mono_mb_emit_stloc (mb, 0);
6298 mono_mb_emit_ldloc (mb, dest_ptr);
6299 mono_mb_emit_stloc (mb, 1);
6301 /* emit valuetype conversion code */
6302 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6305 mono_mb_emit_add_to_local (mb, index_var, 1);
6306 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6308 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6310 mono_mb_patch_branch (mb, label3);
6312 if (eklass == mono_defaults.string_class) {
6313 /* Null terminate */
6314 mono_mb_emit_ldloc (mb, dest_ptr);
6315 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6316 mono_mb_emit_byte (mb, CEE_STIND_REF);
6319 mono_mb_patch_branch (mb, label1);
6324 case MARSHAL_ACTION_CONV_OUT:
6325 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6326 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);
6327 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6330 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6331 int param_num = spec->data.array_data.param_num;
6332 MonoType *param_type;
6334 param_type = m->sig->params [param_num];
6336 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6337 char *msg = g_strdup ("Not implemented.");
6338 mono_mb_emit_exception_marshal_directive (mb, msg);
6343 mono_mb_emit_ldarg (mb, argnum);
6345 /* Create the managed array */
6346 mono_mb_emit_ldarg (mb, param_num);
6347 if (m->sig->params [param_num]->byref)
6348 // FIXME: Support other types
6349 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6350 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6351 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6352 /* Store into argument */
6353 mono_mb_emit_byte (mb, CEE_STIND_REF);
6357 if (need_convert || need_free) {
6358 /* FIXME: Optimize blittable case */
6360 guint32 label1, label2, label3;
6361 int index_var, src_ptr, loc, esize;
6363 eklass = klass->element_class;
6364 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6365 esize = sizeof (gpointer);
6366 else if (eklass == mono_defaults.char_class)
6367 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6369 esize = mono_class_native_size (eklass, NULL);
6370 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6371 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6374 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_byte (mb, CEE_LDIND_I);
6377 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6379 mono_mb_emit_ldloc (mb, conv_arg);
6380 mono_mb_emit_stloc (mb, src_ptr);
6382 /* Emit marshalling loop */
6383 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6384 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6385 mono_mb_emit_stloc (mb, index_var);
6386 label2 = mono_mb_get_label (mb);
6387 mono_mb_emit_ldloc (mb, index_var);
6388 mono_mb_emit_ldarg (mb, argnum);
6390 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6391 mono_mb_emit_byte (mb, CEE_LDLEN);
6392 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6394 /* Emit marshalling code */
6396 if (eklass == mono_defaults.stringbuilder_class) {
6397 gboolean need_free2;
6398 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6400 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6403 mono_mb_emit_ldarg (mb, argnum);
6405 mono_mb_emit_byte (mb, CEE_LDIND_I);
6406 mono_mb_emit_ldloc (mb, index_var);
6407 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6410 mono_mb_emit_ldloc (mb, src_ptr);
6411 mono_mb_emit_byte (mb, CEE_LDIND_I);
6413 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6417 mono_mb_emit_ldloc (mb, src_ptr);
6418 mono_mb_emit_byte (mb, CEE_LDIND_I);
6420 mono_mb_emit_icall (mb, mono_marshal_free);
6423 else if (eklass == mono_defaults.string_class) {
6426 mono_mb_emit_ldloc (mb, src_ptr);
6427 mono_mb_emit_byte (mb, CEE_LDIND_I);
6429 mono_mb_emit_icall (mb, mono_marshal_free);
6434 /* set the src_ptr */
6435 mono_mb_emit_ldloc (mb, src_ptr);
6436 mono_mb_emit_stloc (mb, 0);
6439 mono_mb_emit_ldarg (mb, argnum);
6441 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6442 mono_mb_emit_ldloc (mb, index_var);
6443 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6444 mono_mb_emit_stloc (mb, 1);
6446 /* emit valuetype conversion code */
6447 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6451 mono_mb_emit_ldloc (mb, src_ptr);
6452 mono_mb_emit_stloc (mb, loc);
6453 mono_mb_emit_ldloc (mb, loc);
6455 emit_struct_free (mb, eklass, loc);
6459 mono_mb_emit_add_to_local (mb, index_var, 1);
6460 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6462 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6464 mono_mb_patch_branch (mb, label1);
6465 mono_mb_patch_branch (mb, label3);
6468 if (klass->element_class->blittable) {
6469 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6471 mono_mb_emit_ldarg (mb, argnum);
6473 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6474 mono_mb_emit_ldloc (mb, conv_arg);
6475 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6480 case MARSHAL_ACTION_PUSH:
6482 mono_mb_emit_ldloc_addr (mb, conv_arg);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6487 case MARSHAL_ACTION_CONV_RESULT:
6488 /* fixme: we need conversions here */
6489 mono_mb_emit_stloc (mb, 3);
6492 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6494 guint32 label1, label2, label3;
6495 int index_var, src_ptr, esize, param_num, num_elem;
6496 MonoMarshalConv conv;
6497 gboolean is_string = FALSE;
6499 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6500 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6503 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6504 mono_mb_emit_exception_marshal_directive (mb, msg);
6508 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6509 mono_mb_emit_exception_marshal_directive (mb, msg);
6512 if (spec->native != MONO_NATIVE_LPARRAY) {
6513 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6514 mono_mb_emit_exception_marshal_directive (mb, msg);
6518 /* FIXME: t is from the method which is wrapped, not the delegate type */
6519 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6521 param_num = spec->data.array_data.param_num;
6522 num_elem = spec->data.array_data.num_elem;
6523 if (spec->data.array_data.elem_mult == 0)
6524 /* param_num is not specified */
6527 if (param_num == -1) {
6528 if (num_elem <= 0) {
6529 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6530 mono_mb_emit_exception_marshal_directive (mb, msg);
6535 /* FIXME: Optimize blittable case */
6537 eklass = klass->element_class;
6538 if (eklass == mono_defaults.string_class) {
6540 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6542 else if (eklass == mono_defaults.stringbuilder_class) {
6544 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6547 conv = MONO_MARSHAL_CONV_INVALID;
6549 mono_marshal_load_type_info (eklass);
6552 esize = sizeof (gpointer);
6554 esize = mono_class_native_size (eklass, NULL);
6555 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6557 mono_mb_emit_byte (mb, CEE_LDNULL);
6558 mono_mb_emit_stloc (mb, conv_arg);
6560 /* Check param index */
6561 if (param_num != -1) {
6562 if (param_num >= m->sig->param_count) {
6563 char *msg = g_strdup ("Array size control parameter index is out of range.");
6564 mono_mb_emit_exception_marshal_directive (mb, msg);
6567 switch (m->sig->params [param_num]->type) {
6580 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6581 mono_mb_emit_exception_marshal_directive (mb, msg);
6588 mono_mb_emit_ldarg (mb, argnum);
6589 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6591 mono_mb_emit_ldarg (mb, argnum);
6592 mono_mb_emit_stloc (mb, src_ptr);
6594 /* Create managed array */
6596 * The LPArray marshalling spec says that sometimes param_num starts
6597 * from 1, sometimes it starts from 0. But MS seems to allways start
6601 if (param_num == -1) {
6602 mono_mb_emit_icon (mb, num_elem);
6604 mono_mb_emit_ldarg (mb, param_num);
6606 mono_mb_emit_icon (mb, num_elem);
6607 mono_mb_emit_byte (mb, CEE_ADD);
6609 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6612 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6613 mono_mb_emit_stloc (mb, conv_arg);
6615 if (eklass->blittable) {
6616 mono_mb_emit_ldloc (mb, conv_arg);
6617 mono_mb_emit_byte (mb, CEE_CONV_I);
6618 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6619 mono_mb_emit_byte (mb, CEE_ADD);
6620 mono_mb_emit_ldarg (mb, argnum);
6621 mono_mb_emit_ldloc (mb, conv_arg);
6622 mono_mb_emit_byte (mb, CEE_LDLEN);
6623 mono_mb_emit_icon (mb, esize);
6624 mono_mb_emit_byte (mb, CEE_MUL);
6625 mono_mb_emit_byte (mb, CEE_PREFIX1);
6626 mono_mb_emit_byte (mb, CEE_CPBLK);
6630 /* Emit marshalling loop */
6631 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6632 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6633 mono_mb_emit_stloc (mb, index_var);
6634 label2 = mono_mb_get_label (mb);
6635 mono_mb_emit_ldloc (mb, index_var);
6636 mono_mb_emit_ldloc (mb, conv_arg);
6637 mono_mb_emit_byte (mb, CEE_LDLEN);
6638 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6640 /* Emit marshalling code */
6642 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6644 mono_mb_emit_ldloc (mb, conv_arg);
6645 mono_mb_emit_ldloc (mb, index_var);
6647 mono_mb_emit_ldloc (mb, src_ptr);
6648 mono_mb_emit_byte (mb, CEE_LDIND_I);
6650 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6651 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6654 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6655 mono_mb_emit_exception_marshal_directive (mb, msg);
6659 mono_mb_emit_add_to_local (mb, index_var, 1);
6660 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6662 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6664 mono_mb_patch_branch (mb, label1);
6665 mono_mb_patch_branch (mb, label3);
6669 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6671 guint32 label1, label2, label3;
6672 int index_var, dest_ptr, esize, param_num, num_elem;
6673 MonoMarshalConv conv;
6674 gboolean is_string = FALSE;
6677 /* Already handled in CONV_IN */
6680 /* These are already checked in CONV_IN */
6681 g_assert (!t->byref);
6682 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6683 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6685 param_num = spec->data.array_data.param_num;
6686 num_elem = spec->data.array_data.num_elem;
6688 if (spec->data.array_data.elem_mult == 0)
6689 /* param_num is not specified */
6692 if (param_num == -1) {
6693 if (num_elem <= 0) {
6694 g_assert_not_reached ();
6698 /* FIXME: Optimize blittable case */
6700 eklass = klass->element_class;
6701 if (eklass == mono_defaults.string_class) {
6703 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6705 else if (eklass == mono_defaults.stringbuilder_class) {
6707 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6710 conv = MONO_MARSHAL_CONV_INVALID;
6712 mono_marshal_load_type_info (eklass);
6715 esize = sizeof (gpointer);
6717 esize = mono_class_native_size (eklass, NULL);
6719 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6722 mono_mb_emit_ldloc (mb, conv_arg);
6723 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6725 mono_mb_emit_ldarg (mb, argnum);
6726 mono_mb_emit_stloc (mb, dest_ptr);
6728 if (eklass->blittable) {
6730 mono_mb_emit_ldarg (mb, argnum);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 mono_mb_emit_byte (mb, CEE_CONV_I);
6734 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6735 mono_mb_emit_byte (mb, CEE_ADD);
6737 mono_mb_emit_ldloc (mb, conv_arg);
6738 mono_mb_emit_byte (mb, CEE_LDLEN);
6739 mono_mb_emit_icon (mb, esize);
6740 mono_mb_emit_byte (mb, CEE_MUL);
6741 mono_mb_emit_byte (mb, CEE_PREFIX1);
6742 mono_mb_emit_byte (mb, CEE_CPBLK);
6746 /* Emit marshalling loop */
6747 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6748 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6749 mono_mb_emit_stloc (mb, index_var);
6750 label2 = mono_mb_get_label (mb);
6751 mono_mb_emit_ldloc (mb, index_var);
6752 mono_mb_emit_ldloc (mb, conv_arg);
6753 mono_mb_emit_byte (mb, CEE_LDLEN);
6754 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6756 /* Emit marshalling code */
6759 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6762 mono_mb_emit_ldloc (mb, dest_ptr);
6765 mono_mb_emit_ldloc (mb, conv_arg);
6766 mono_mb_emit_ldloc (mb, index_var);
6768 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6770 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6771 mono_mb_emit_byte (mb, stind_op);
6774 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6775 mono_mb_emit_exception_marshal_directive (mb, msg);
6779 mono_mb_emit_add_to_local (mb, index_var, 1);
6780 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6782 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6784 mono_mb_patch_branch (mb, label1);
6785 mono_mb_patch_branch (mb, label3);
6789 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6791 guint32 label1, label2, label3;
6792 int index_var, src, dest, esize;
6793 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6794 gboolean is_string = FALSE;
6796 g_assert (!t->byref);
6798 eklass = klass->element_class;
6800 mono_marshal_load_type_info (eklass);
6802 if (eklass == mono_defaults.string_class) {
6804 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6807 g_assert_not_reached ();
6811 esize = sizeof (gpointer);
6812 else if (eklass == mono_defaults.char_class)
6813 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6815 esize = mono_class_native_size (eklass, NULL);
6817 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6818 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6820 mono_mb_emit_stloc (mb, src);
6821 mono_mb_emit_ldloc (mb, src);
6822 mono_mb_emit_stloc (mb, 3);
6824 /* Check for null */
6825 mono_mb_emit_ldloc (mb, src);
6826 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6828 /* Allocate native array */
6829 mono_mb_emit_icon (mb, esize);
6830 mono_mb_emit_ldloc (mb, src);
6831 mono_mb_emit_byte (mb, CEE_LDLEN);
6833 if (eklass == mono_defaults.string_class) {
6834 /* Make the array bigger for the terminating null */
6835 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6836 mono_mb_emit_byte (mb, CEE_ADD);
6838 mono_mb_emit_byte (mb, CEE_MUL);
6839 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6840 mono_mb_emit_stloc (mb, dest);
6841 mono_mb_emit_ldloc (mb, dest);
6842 mono_mb_emit_stloc (mb, 3);
6844 /* Emit marshalling loop */
6845 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6846 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6847 mono_mb_emit_stloc (mb, index_var);
6848 label2 = mono_mb_get_label (mb);
6849 mono_mb_emit_ldloc (mb, index_var);
6850 mono_mb_emit_ldloc (mb, src);
6851 mono_mb_emit_byte (mb, CEE_LDLEN);
6852 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6854 /* Emit marshalling code */
6857 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6860 mono_mb_emit_ldloc (mb, dest);
6863 mono_mb_emit_ldloc (mb, src);
6864 mono_mb_emit_ldloc (mb, index_var);
6866 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6868 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6869 mono_mb_emit_byte (mb, stind_op);
6872 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6873 mono_mb_emit_exception_marshal_directive (mb, msg);
6877 mono_mb_emit_add_to_local (mb, index_var, 1);
6878 mono_mb_emit_add_to_local (mb, dest, esize);
6880 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6882 mono_mb_patch_branch (mb, label3);
6883 mono_mb_patch_branch (mb, label1);
6887 g_assert_not_reached ();
6894 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6897 return &mono_defaults.int32_class->byval_arg;
6899 switch (spec->native) {
6900 case MONO_NATIVE_I1:
6901 case MONO_NATIVE_U1:
6902 return &mono_defaults.byte_class->byval_arg;
6903 case MONO_NATIVE_VARIANTBOOL:
6904 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6905 return &mono_defaults.int16_class->byval_arg;
6906 case MONO_NATIVE_BOOLEAN:
6907 return &mono_defaults.int32_class->byval_arg;
6909 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6910 return &mono_defaults.int32_class->byval_arg;
6916 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6918 MonoClass* conv_arg_class = mono_defaults.int32_class;
6920 switch (spec->native) {
6921 case MONO_NATIVE_I1:
6922 case MONO_NATIVE_U1:
6923 conv_arg_class = mono_defaults.byte_class;
6924 if (ldop) *ldop = CEE_LDIND_I1;
6926 case MONO_NATIVE_VARIANTBOOL:
6927 conv_arg_class = mono_defaults.int16_class;
6928 if (ldop) *ldop = CEE_LDIND_I2;
6930 case MONO_NATIVE_BOOLEAN:
6933 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6936 return conv_arg_class;
6940 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6941 MonoMarshalSpec *spec,
6942 int conv_arg, MonoType **conv_arg_type,
6943 MarshalAction action)
6947 case MARSHAL_ACTION_CONV_IN:
6949 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6951 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6954 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6955 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6957 *conv_arg_type = &conv_arg_class->this_arg;
6959 *conv_arg_type = &conv_arg_class->byval_arg;
6965 MonoMethodBuilder *mb = m->mb;
6968 case MARSHAL_ACTION_CONV_IN: {
6969 MonoType *local_type;
6971 guint8 ldc_op = CEE_LDC_I4_1;
6973 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6975 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6977 *conv_arg_type = local_type;
6978 conv_arg = mono_mb_add_local (mb, local_type);
6980 mono_mb_emit_ldarg (mb, argnum);
6982 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6983 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6984 mono_mb_emit_byte (mb, ldc_op);
6985 mono_mb_emit_stloc (mb, conv_arg);
6986 mono_mb_patch_branch (mb, label_false);
6991 case MARSHAL_ACTION_CONV_OUT:
6993 int label_false, label_end;
6997 mono_mb_emit_ldarg (mb, argnum);
6998 mono_mb_emit_ldloc (mb, conv_arg);
7000 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7001 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7003 label_end = mono_mb_emit_branch (mb, CEE_BR);
7004 mono_mb_patch_branch (mb, label_false);
7005 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7006 mono_mb_patch_branch (mb, label_end);
7008 mono_mb_emit_byte (mb, CEE_STIND_I1);
7012 case MARSHAL_ACTION_PUSH:
7014 mono_mb_emit_ldloc_addr (mb, conv_arg);
7016 mono_mb_emit_ldloc (mb, conv_arg);
7018 mono_mb_emit_ldarg (mb, argnum);
7021 case MARSHAL_ACTION_CONV_RESULT:
7022 /* maybe we need to make sure that it fits within 8 bits */
7023 mono_mb_emit_stloc (mb, 3);
7026 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7027 MonoClass* conv_arg_class = mono_defaults.int32_class;
7028 guint8 ldop = CEE_LDIND_I4;
7029 int label_null, label_false;
7031 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7032 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7035 *conv_arg_type = &conv_arg_class->this_arg;
7037 *conv_arg_type = &conv_arg_class->byval_arg;
7040 mono_mb_emit_ldarg (mb, argnum);
7044 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7045 mono_mb_emit_ldarg (mb, argnum);
7046 mono_mb_emit_byte (mb, ldop);
7050 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7051 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7052 mono_mb_emit_stloc (mb, conv_arg);
7053 mono_mb_patch_branch (mb, label_false);
7056 mono_mb_patch_branch (mb, label_null);
7060 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7061 guint8 stop = CEE_STIND_I4;
7062 guint8 ldc_op = CEE_LDC_I4_1;
7063 int label_null,label_false, label_end;;
7068 switch (spec->native) {
7069 case MONO_NATIVE_I1:
7070 case MONO_NATIVE_U1:
7071 stop = CEE_STIND_I1;
7073 case MONO_NATIVE_VARIANTBOOL:
7074 stop = CEE_STIND_I2;
7075 ldc_op = CEE_LDC_I4_M1;
7083 mono_mb_emit_ldarg (mb, argnum);
7084 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7086 mono_mb_emit_ldarg (mb, argnum);
7087 mono_mb_emit_ldloc (mb, conv_arg);
7089 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7090 mono_mb_emit_byte (mb, ldc_op);
7091 label_end = mono_mb_emit_branch (mb, CEE_BR);
7093 mono_mb_patch_branch (mb, label_false);
7094 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7095 mono_mb_patch_branch (mb, label_end);
7097 mono_mb_emit_byte (mb, stop);
7098 mono_mb_patch_branch (mb, label_null);
7103 g_assert_not_reached ();
7110 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7111 MonoMarshalSpec *spec, int conv_arg,
7112 MonoType **conv_arg_type, MarshalAction action)
7115 MonoMethodBuilder *mb = m->mb;
7118 case MARSHAL_ACTION_CONV_IN:
7119 /* MS seems to allow this in some cases, ie. bxc #158 */
7121 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7122 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7123 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7128 case MARSHAL_ACTION_PUSH:
7129 mono_mb_emit_ldarg (mb, argnum);
7132 case MARSHAL_ACTION_CONV_RESULT:
7133 /* no conversions necessary */
7134 mono_mb_emit_stloc (mb, 3);
7145 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7146 MonoMarshalSpec *spec, int conv_arg,
7147 MonoType **conv_arg_type, MarshalAction action)
7150 MonoMethodBuilder *mb = m->mb;
7153 case MARSHAL_ACTION_PUSH:
7154 /* fixme: dont know how to marshal that. We cant simply
7155 * convert it to a one byte UTF8 character, because an
7156 * unicode character may need more that one byte in UTF8 */
7157 mono_mb_emit_ldarg (mb, argnum);
7160 case MARSHAL_ACTION_CONV_RESULT:
7161 /* fixme: we need conversions here */
7162 mono_mb_emit_stloc (mb, 3);
7173 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7174 MonoMarshalSpec *spec, int conv_arg,
7175 MonoType **conv_arg_type, MarshalAction action)
7178 MonoMethodBuilder *mb = m->mb;
7181 case MARSHAL_ACTION_PUSH:
7182 mono_mb_emit_ldarg (mb, argnum);
7185 case MARSHAL_ACTION_CONV_RESULT:
7186 /* no conversions necessary */
7187 mono_mb_emit_stloc (mb, 3);
7198 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7199 MonoMarshalSpec *spec, int conv_arg,
7200 MonoType **conv_arg_type, MarshalAction action)
7202 /* Ensure that we have marshalling info for this param */
7203 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7205 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7206 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7208 if (spec && spec->native == MONO_NATIVE_ASANY)
7209 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 case MONO_TYPE_VALUETYPE:
7213 if (t->data.klass == mono_defaults.handleref_class)
7214 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7216 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7217 case MONO_TYPE_STRING:
7218 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7219 case MONO_TYPE_CLASS:
7220 case MONO_TYPE_OBJECT:
7221 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7222 if (spec && spec->native == MONO_NATIVE_STRUCT)
7223 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7226 #if !defined(DISABLE_COM)
7227 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7228 spec->native == MONO_NATIVE_IDISPATCH ||
7229 spec->native == MONO_NATIVE_INTERFACE))
7230 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7231 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7232 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7233 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7234 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7237 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7238 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7239 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7241 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7242 case MONO_TYPE_ARRAY:
7243 case MONO_TYPE_SZARRAY:
7244 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7245 case MONO_TYPE_BOOLEAN:
7246 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7248 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7249 case MONO_TYPE_CHAR:
7250 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7263 case MONO_TYPE_FNPTR:
7264 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7265 case MONO_TYPE_GENERICINST:
7266 if (mono_type_generic_inst_is_valuetype (t))
7267 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7269 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7277 * mono_marshal_emit_native_wrapper:
7278 * @image: the image to use for looking up custom marshallers
7279 * @sig: The signature of the native function
7280 * @piinfo: Marshalling information
7281 * @mspecs: Marshalling information
7282 * @aot: whenever the created method will be compiled by the AOT compiler
7283 * @method: if non-NULL, the pinvoke method to call
7284 * @check_exceptions: Whenever to check for pending exceptions after the native call
7285 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7287 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7290 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)
7292 EmitMarshalContext m;
7293 MonoMethodSignature *csig;
7295 int i, argnum, *tmp_locals;
7296 int type, param_shift = 0;
7297 static MonoMethodSignature *get_last_error_sig = NULL;
7298 int coop_gc_stack_dummy, coop_gc_var;
7300 memset (&m, 0, sizeof (m));
7305 /* we copy the signature, so that we can set pinvoke to 0 */
7307 /* The function address is passed as the first argument */
7308 g_assert (!sig->hasthis);
7311 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7319 /* we allocate local for use with emit_struct_conv() */
7320 /* allocate local 0 (pointer) src_ptr */
7321 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7322 /* allocate local 1 (pointer) dst_ptr */
7323 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7324 /* allocate local 2 (boolean) delete_old */
7325 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7327 /* delete_old = FALSE */
7328 mono_mb_emit_icon (mb, 0);
7329 mono_mb_emit_stloc (mb, 2);
7331 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7332 /* allocate local 3 to store the return value */
7333 mono_mb_add_local (mb, sig->ret);
7336 if (mono_threads_is_coop_enabled ()) {
7337 /* local 4, dummy local used to get a stack address for suspend funcs */
7338 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7339 /* local 5, the local to be used when calling the suspend funcs */
7340 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7344 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7346 * ret = method (...);
7348 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7355 if (MONO_TYPE_ISSTRUCT (sig->ret))
7356 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7358 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7359 /* Return type custom marshaling */
7361 * Since we can't determine the return type of the unmanaged function,
7362 * we assume it returns a pointer, and pass that pointer to
7363 * MarshalNativeToManaged.
7365 csig->ret = &mono_defaults.int_class->byval_arg;
7368 /* we first do all conversions */
7369 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7370 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7372 for (i = 0; i < sig->param_count; i ++) {
7373 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7376 // In coop mode need to register blocking state during native call
7377 if (mono_threads_is_coop_enabled ()) {
7378 // Perform an extra, early lookup of the function address, so any exceptions
7379 // potentially resulting from the lookup occur before entering blocking mode.
7380 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7381 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7382 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7383 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7386 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7387 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7388 mono_mb_emit_stloc (mb, coop_gc_var);
7391 /* push all arguments */
7394 mono_mb_emit_byte (mb, CEE_LDARG_0);
7396 for (i = 0; i < sig->param_count; i++) {
7397 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7400 /* call the native method */
7402 mono_mb_emit_byte (mb, CEE_LDARG_0);
7403 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7404 mono_mb_emit_byte (mb, CEE_LDIND_I);
7405 mono_mb_emit_calli (mb, csig);
7406 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7408 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7410 g_assert_not_reached ();
7414 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7415 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7416 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7417 mono_mb_emit_calli (mb, csig);
7419 mono_mb_emit_native_call (mb, csig, func);
7423 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7424 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7425 mono_class_init (klass);
7426 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7427 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7428 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7429 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7430 mono_mb_emit_stloc (mb, m.vtaddr_var);
7434 /* Unblock before converting the result, since that can involve calls into the runtime */
7435 if (mono_threads_is_coop_enabled ()) {
7436 mono_mb_emit_ldloc (mb, coop_gc_var);
7437 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7438 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7441 /* Set LastError if needed */
7442 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7443 if (!get_last_error_sig) {
7444 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7445 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7446 get_last_error_sig->pinvoke = 1;
7451 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7452 * clobber its value.
7454 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7455 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7457 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7461 /* convert the result */
7462 if (!sig->ret->byref) {
7463 MonoMarshalSpec *spec = mspecs [0];
7464 type = sig->ret->type;
7466 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7467 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7471 case MONO_TYPE_VOID:
7473 case MONO_TYPE_VALUETYPE:
7474 klass = sig->ret->data.klass;
7475 if (klass->enumtype) {
7476 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7479 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7493 case MONO_TYPE_FNPTR:
7494 case MONO_TYPE_STRING:
7495 case MONO_TYPE_CLASS:
7496 case MONO_TYPE_OBJECT:
7497 case MONO_TYPE_BOOLEAN:
7498 case MONO_TYPE_ARRAY:
7499 case MONO_TYPE_SZARRAY:
7500 case MONO_TYPE_CHAR:
7502 case MONO_TYPE_GENERICINST:
7503 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7505 case MONO_TYPE_TYPEDBYREF:
7507 g_warning ("return type 0x%02x unknown", sig->ret->type);
7508 g_assert_not_reached ();
7512 mono_mb_emit_stloc (mb, 3);
7516 * Need to call this after converting the result since MONO_VTADDR needs
7517 * to be adjacent to the call instruction.
7519 if (check_exceptions)
7520 emit_thread_interrupt_checkpoint (mb);
7522 /* we need to convert byref arguments back and free string arrays */
7523 for (i = 0; i < sig->param_count; i++) {
7524 MonoType *t = sig->params [i];
7525 MonoMarshalSpec *spec = mspecs [i + 1];
7527 argnum = i + param_shift;
7529 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7530 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7535 case MONO_TYPE_STRING:
7536 case MONO_TYPE_VALUETYPE:
7537 case MONO_TYPE_CLASS:
7538 case MONO_TYPE_OBJECT:
7539 case MONO_TYPE_SZARRAY:
7540 case MONO_TYPE_BOOLEAN:
7541 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7548 if (!MONO_TYPE_IS_VOID(sig->ret))
7549 mono_mb_emit_ldloc (mb, 3);
7551 mono_mb_emit_byte (mb, CEE_RET);
7553 #endif /* DISABLE_JIT */
7556 * mono_marshal_get_native_wrapper:
7557 * @method: The MonoMethod to wrap.
7558 * @check_exceptions: Whenever to check for pending exceptions
7560 * generates IL code for the pinvoke wrapper (the generated method
7561 * calls the unmanaged code in piinfo->addr)
7562 * The wrapper info for the wrapper is a WrapperInfo structure.
7565 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7567 MonoMethodSignature *sig, *csig;
7568 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7569 MonoMethodBuilder *mb;
7570 MonoMarshalSpec **mspecs;
7573 gboolean pinvoke = FALSE;
7576 const char *exc_class = "MissingMethodException";
7577 const char *exc_arg = NULL;
7580 g_assert (method != NULL);
7581 g_assert (mono_method_signature (method)->pinvoke);
7583 GHashTable **cache_ptr;
7586 if (check_exceptions)
7587 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7589 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7591 if (check_exceptions)
7592 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7594 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7597 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7599 if ((res = mono_marshal_find_in_cache (cache, method)))
7602 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7603 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7607 return mono_cominterop_get_native_wrapper (method);
7609 g_assert_not_reached ();
7613 sig = mono_method_signature (method);
7615 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7616 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7619 if (!piinfo->addr) {
7621 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7622 exc_arg = "Method contains unsupported native code";
7624 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7626 piinfo->addr = mono_lookup_internal_call (method);
7630 /* hack - redirect certain string constructors to CreateString */
7631 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7632 g_assert (!pinvoke);
7633 g_assert (method->string_ctor);
7634 g_assert (sig->hasthis);
7636 /* CreateString returns a value */
7637 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7638 csig->ret = &mono_defaults.string_class->byval_arg;
7642 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7643 if (!strcmp ("CreateString", res->name) &&
7644 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7647 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7648 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7650 /* create a wrapper to preserve .ctor in stack trace */
7651 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7654 mono_mb_emit_byte (mb, CEE_LDARG_0);
7655 for (i = 1; i <= csig->param_count; i++)
7656 mono_mb_emit_ldarg (mb, i);
7657 mono_mb_emit_managed_call (mb, res, NULL);
7658 mono_mb_emit_byte (mb, CEE_RET);
7661 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7662 info->d.string_ctor.method = method;
7664 /* use native_wrapper_cache because internal calls are looked up there */
7665 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7666 csig->param_count + 1, info, NULL);
7673 /* exception will be thrown */
7674 piinfo->addr = NULL;
7675 g_warning ("cannot find CreateString for .ctor");
7678 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7680 mb->method->save_lmf = 1;
7683 * In AOT mode and embedding scenarios, it is possible that the icall is not
7684 * registered in the runtime doing the AOT compilation.
7686 if (!piinfo->addr && !aot) {
7688 mono_mb_emit_exception (mb, exc_class, exc_arg);
7690 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7691 info->d.managed_to_native.method = method;
7693 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7695 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7696 csig->param_count + 16, info, NULL);
7702 /* internal calls: we simply push all arguments and call the method (no conversions) */
7703 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7705 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7707 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7709 /* hack - string constructors returns a value */
7710 if (method->string_ctor)
7711 csig->ret = &mono_defaults.string_class->byval_arg;
7718 * Add a null check since public icalls can be called with 'call' which
7719 * does no such check.
7721 mono_mb_emit_byte (mb, CEE_LDARG_0);
7722 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7723 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7724 mono_mb_patch_branch (mb, pos);
7726 mono_mb_emit_byte (mb, CEE_LDARG_0);
7729 for (i = 0; i < sig->param_count; i++)
7730 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7733 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7734 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7735 mono_mb_emit_calli (mb, csig);
7737 g_assert (piinfo->addr);
7738 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7740 if (check_exceptions)
7741 emit_thread_interrupt_checkpoint (mb);
7742 mono_mb_emit_byte (mb, CEE_RET);
7744 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7745 info->d.managed_to_native.method = method;
7747 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7749 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7758 g_assert (piinfo->addr);
7761 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7762 mono_method_get_marshal_info (method, mspecs);
7764 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7766 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7767 info->d.managed_to_native.method = method;
7769 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7771 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7776 for (i = sig->param_count; i >= 0; i--)
7778 mono_metadata_free_marshal_spec (mspecs [i]);
7782 /* mono_method_print_code (res); */
7788 * mono_marshal_get_native_func_wrapper:
7789 * @image: The image to use for memory allocation and for looking up custom marshallers.
7790 * @sig: The signature of the function
7791 * @func: The native function to wrap
7793 * Returns a wrapper method around native functions, similar to the pinvoke
7797 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7798 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7800 MonoMethodSignature *csig;
7802 SignaturePointerPair key, *new_key;
7803 MonoMethodBuilder *mb;
7812 // Generic types are not safe to place in MonoImage caches.
7813 g_assert (!sig->is_inflated);
7815 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7816 if ((res = mono_marshal_find_in_cache (cache, &key)))
7819 name = g_strdup_printf ("wrapper_native_%p", func);
7820 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7821 mb->method->save_lmf = 1;
7824 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7827 csig = mono_metadata_signature_dup_full (image, sig);
7830 new_key = g_new (SignaturePointerPair,1);
7831 new_key->sig = csig;
7832 new_key->pointer = func;
7834 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7840 mono_marshal_set_wrapper_info (res, NULL);
7846 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7850 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7852 MonoMethodSignature *sig, *csig;
7853 MonoMethodBuilder *mb;
7858 MonoMethodPInvoke mpiinfo;
7859 MonoMethodPInvoke *piinfo = &mpiinfo;
7860 MonoMarshalSpec **mspecs;
7861 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7862 MonoImage *image = invoke->klass->image;
7865 // FIXME: include UnmanagedFunctionPointerAttribute info
7868 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7870 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7872 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7875 memset (&mpiinfo, 0, sizeof (mpiinfo));
7876 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7878 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7879 mono_method_get_marshal_info (invoke, mspecs);
7880 /* Freed below so don't alloc from mempool */
7881 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7884 name = g_strdup_printf ("wrapper_aot_native");
7885 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7886 mb->method->save_lmf = 1;
7889 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7892 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7893 info->d.managed_to_native.method = invoke;
7895 g_assert (!sig->hasthis);
7896 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7898 res = mono_mb_create_and_cache_full (cache, invoke,
7899 mb, csig, csig->param_count + 16,
7903 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7905 mono_metadata_free_marshal_spec (mspecs [i]);
7913 * mono_marshal_emit_managed_wrapper:
7915 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7916 * the delegate which wraps the managed method to be called. For closed delegates,
7917 * it could have fewer parameters than the method it wraps.
7918 * THIS_LOC is the memory location where the target of the delegate is stored.
7921 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7924 MonoMethodSignature *sig, *csig;
7930 /* we first do all conversions */
7931 for (i = 0; i < sig->param_count; i ++) {
7932 MonoType *t = sig->params [i];
7935 case MONO_TYPE_OBJECT:
7936 case MONO_TYPE_CLASS:
7937 case MONO_TYPE_VALUETYPE:
7938 case MONO_TYPE_ARRAY:
7939 case MONO_TYPE_SZARRAY:
7940 case MONO_TYPE_STRING:
7941 case MONO_TYPE_BOOLEAN:
7942 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7946 if (!sig->ret->byref) {
7947 switch (sig->ret->type) {
7948 case MONO_TYPE_STRING:
7949 csig->ret = &mono_defaults.int_class->byval_arg;
7956 MonoMethodSignature *sig, *csig;
7957 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7958 int i, *tmp_locals, ex_local, e_local;
7959 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7960 gboolean closed = FALSE;
7965 /* allocate local 0 (pointer) src_ptr */
7966 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7967 /* allocate local 1 (pointer) dst_ptr */
7968 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7969 /* allocate local 2 (boolean) delete_old */
7970 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7972 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7973 /* Closed delegate */
7974 g_assert (sig->param_count == invoke_sig->param_count + 1);
7976 /* Use a new signature without the first argument */
7977 sig = mono_metadata_signature_dup (sig);
7978 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7979 sig->param_count --;
7982 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7983 /* allocate local 3 to store the return value */
7984 mono_mb_add_local (mb, sig->ret);
7987 if (MONO_TYPE_ISSTRUCT (sig->ret))
7988 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7990 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
7991 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
7996 * mono_jit_attach ();
8000 * ret = method (...);
8001 * } catch (Exception e) {
8002 * ex = mono_gchandle_new (e, false);
8004 * mono_jit_detach ();
8007 * mono_marshal_ftnptr_eh_callback (ex);
8013 clauses = g_new0 (MonoExceptionClause, 2);
8015 clause_catch = &clauses [0];
8016 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8017 clause_catch->data.catch_class = mono_defaults.exception_class;
8019 clause_finally = &clauses [1];
8020 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8022 mono_mb_emit_icon (mb, 0);
8023 mono_mb_emit_stloc (mb, 2);
8025 mono_mb_emit_icon (mb, -1);
8026 mono_mb_emit_byte (mb, CEE_CONV_U4);
8027 mono_mb_emit_stloc (mb, ex_local);
8030 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8033 * Might need to attach the thread to the JIT or change the
8034 * domain for the callback.
8036 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8038 * mono_jit_attach ();
8040 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8041 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8043 /* <interrupt check> */
8044 emit_thread_interrupt_checkpoint (mb);
8046 /* we first do all conversions */
8047 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8048 for (i = 0; i < sig->param_count; i ++) {
8049 MonoType *t = sig->params [i];
8052 case MONO_TYPE_OBJECT:
8053 case MONO_TYPE_CLASS:
8054 case MONO_TYPE_VALUETYPE:
8055 case MONO_TYPE_ARRAY:
8056 case MONO_TYPE_SZARRAY:
8057 case MONO_TYPE_STRING:
8058 case MONO_TYPE_BOOLEAN:
8059 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8069 if (target_handle) {
8070 mono_mb_emit_icon (mb, (gint32)target_handle);
8071 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8074 g_assert_not_reached ();
8076 } else if (closed) {
8077 mono_mb_emit_icon (mb, (gint32)target_handle);
8078 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8081 for (i = 0; i < sig->param_count; i++) {
8082 MonoType *t = sig->params [i];
8084 if (tmp_locals [i]) {
8086 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8088 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8091 mono_mb_emit_ldarg (mb, i);
8094 /* ret = method (...) */
8095 mono_mb_emit_managed_call (mb, method, NULL);
8097 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8098 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8099 mono_class_init (klass);
8100 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8101 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8102 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8103 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8104 mono_mb_emit_stloc (mb, m->vtaddr_var);
8108 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8109 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8110 } else if (!sig->ret->byref) {
8111 switch (sig->ret->type) {
8112 case MONO_TYPE_VOID:
8114 case MONO_TYPE_BOOLEAN:
8117 case MONO_TYPE_CHAR:
8129 case MONO_TYPE_OBJECT:
8130 mono_mb_emit_stloc (mb, 3);
8132 case MONO_TYPE_STRING:
8133 csig->ret = &mono_defaults.int_class->byval_arg;
8134 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8136 case MONO_TYPE_VALUETYPE:
8137 case MONO_TYPE_CLASS:
8138 case MONO_TYPE_SZARRAY:
8139 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8142 g_warning ("return type 0x%02x unknown", sig->ret->type);
8143 g_assert_not_reached ();
8146 mono_mb_emit_stloc (mb, 3);
8149 /* Convert byref arguments back */
8150 for (i = 0; i < sig->param_count; i ++) {
8151 MonoType *t = sig->params [i];
8152 MonoMarshalSpec *spec = mspecs [i + 1];
8154 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8155 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8157 else if (t->byref) {
8159 case MONO_TYPE_CLASS:
8160 case MONO_TYPE_VALUETYPE:
8161 case MONO_TYPE_OBJECT:
8162 case MONO_TYPE_STRING:
8163 case MONO_TYPE_BOOLEAN:
8164 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8170 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8171 /* The [Out] information is encoded in the delegate signature */
8173 case MONO_TYPE_SZARRAY:
8174 case MONO_TYPE_CLASS:
8175 case MONO_TYPE_VALUETYPE:
8176 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8179 g_assert_not_reached ();
8184 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8188 /* catch (Exception e) { */
8189 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8190 clause_catch->handler_offset = mono_mb_get_label (mb);
8192 mono_mb_emit_stloc (mb, e_local);
8194 /* ex = mono_gchandle_new (e, false); */
8195 mono_mb_emit_ldloc (mb, e_local);
8196 mono_mb_emit_icon (mb, 0);
8197 mono_mb_emit_icall (mb, mono_gchandle_new);
8198 mono_mb_emit_stloc (mb, ex_local);
8200 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8203 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8206 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8207 clause_finally->handler_offset = mono_mb_get_label (mb);
8210 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8212 * mono_jit_detach ();
8214 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8215 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8218 mono_mb_emit_ldloc (mb, ex_local);
8219 mono_mb_emit_icon (mb, -1);
8220 mono_mb_emit_byte (mb, CEE_CONV_U4);
8221 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8223 /* mono_marshal_ftnptr_eh_callback (ex) */
8224 mono_mb_emit_ldloc (mb, ex_local);
8225 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8228 mono_mb_patch_branch (mb, ex_m1_pos);
8230 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8232 /* } [endfinally] */
8233 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8235 mono_mb_patch_branch (mb, leave_try_pos);
8236 mono_mb_patch_branch (mb, leave_catch_pos);
8239 if (m->retobj_var) {
8240 mono_mb_emit_ldloc (mb, m->retobj_var);
8241 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8242 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8245 if (!MONO_TYPE_IS_VOID(sig->ret))
8246 mono_mb_emit_ldloc (mb, 3);
8247 mono_mb_emit_byte (mb, CEE_RET);
8250 mono_mb_set_clauses (mb, 2, clauses);
8258 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8260 MonoMethodSignature *sig;
8265 * Under windows, delegates passed to native code must use the STDCALL
8266 * calling convention.
8268 csig->call_convention = MONO_CALL_STDCALL;
8271 sig = mono_method_signature (method);
8273 /* Change default calling convention if needed */
8274 /* Why is this a modopt ? */
8275 if (sig->ret && sig->ret->num_mods) {
8276 for (i = 0; i < sig->ret->num_mods; ++i) {
8278 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8279 g_assert (mono_error_ok (&error));
8280 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8281 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8282 csig->call_convention = MONO_CALL_C;
8283 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8284 csig->call_convention = MONO_CALL_STDCALL;
8285 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8286 csig->call_convention = MONO_CALL_FASTCALL;
8287 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8288 csig->call_convention = MONO_CALL_THISCALL;
8295 * generates IL code to call managed methods from unmanaged code
8296 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8299 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8302 MonoMethodSignature *sig, *csig, *invoke_sig;
8303 MonoMethodBuilder *mb;
8304 MonoMethod *res, *invoke;
8305 MonoMarshalSpec **mspecs;
8306 MonoMethodPInvoke piinfo;
8309 EmitMarshalContext m;
8311 g_assert (method != NULL);
8312 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8315 * FIXME: Should cache the method+delegate type pair, since the same method
8316 * could be called with different delegates, thus different marshalling
8319 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8321 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8324 invoke = mono_get_delegate_invoke (delegate_klass);
8325 invoke_sig = mono_method_signature (invoke);
8327 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8328 mono_method_get_marshal_info (invoke, mspecs);
8330 sig = mono_method_signature (method);
8332 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8334 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8335 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8337 /* we copy the signature, so that we can modify it */
8339 /* Need to free this later */
8340 csig = mono_metadata_signature_dup (invoke_sig);
8342 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8346 memset (&m, 0, sizeof (m));
8352 m.image = method->klass->image;
8354 mono_marshal_set_callconv_from_modopt (invoke, csig);
8356 /* The attribute is only available in Net 2.0 */
8357 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8358 MonoCustomAttrInfo *cinfo;
8359 MonoCustomAttrEntry *attr;
8362 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8363 * contents of the attribute without constructing it, as that might not be
8364 * possible when running in cross-compiling mode.
8366 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8367 mono_error_assert_ok (&error);
8370 for (i = 0; i < cinfo->num_attrs; ++i) {
8371 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8372 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8373 attr = &cinfo->attrs [i];
8379 MonoArray *typed_args, *named_args;
8380 CattrNamedArg *arginfo;
8384 MonoBoolean set_last_error = 0;
8387 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8388 g_assert (mono_error_ok (&error));
8389 g_assert (mono_array_length (typed_args) == 1);
8392 o = mono_array_get (typed_args, MonoObject*, 0);
8393 call_conv = *(gint32*)mono_object_unbox (o);
8396 for (i = 0; i < mono_array_length (named_args); ++i) {
8397 CattrNamedArg *narg = &arginfo [i];
8399 o = mono_array_get (named_args, MonoObject*, i);
8401 g_assert (narg->field);
8402 if (!strcmp (narg->field->name, "CharSet")) {
8403 charset = *(gint32*)mono_object_unbox (o);
8404 } else if (!strcmp (narg->field->name, "SetLastError")) {
8405 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8406 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8407 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8408 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8409 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8411 g_assert_not_reached ();
8417 memset (&piinfo, 0, sizeof (piinfo));
8419 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8421 csig->call_convention = call_conv - 1;
8424 if (cinfo && !cinfo->cached)
8425 mono_custom_attrs_free (cinfo);
8428 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8430 if (!target_handle) {
8433 // FIXME: Associate it with the method+delegate_klass pair
8434 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8435 info->d.native_to_managed.method = method;
8436 info->d.native_to_managed.klass = delegate_klass;
8438 res = mono_mb_create_and_cache_full (cache, method,
8439 mb, csig, sig->param_count + 16,
8445 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8449 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8451 mono_metadata_free_marshal_spec (mspecs [i]);
8454 /* mono_method_print_code (res); */
8460 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8464 MonoMethodSignature *sig;
8465 MonoMethodBuilder *mb;
8470 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8472 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8475 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8476 MonoMethodSignature *csig;
8477 MonoMarshalSpec **mspecs;
8478 EmitMarshalContext m;
8480 sig = mono_method_signature (method);
8481 g_assert (!sig->hasthis);
8483 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8484 mono_method_get_marshal_info (method, mspecs);
8486 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8487 csig = mono_metadata_signature_dup_full (image, sig);
8491 memset (&m, 0, sizeof (m));
8499 mono_marshal_set_callconv_from_modopt (method, csig);
8501 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8503 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8508 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8511 for (i = sig->param_count; i >= 0; i--)
8513 mono_metadata_free_marshal_spec (mspecs [i]);
8516 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8517 mono_error_assert_ok (&error);
8518 return compiled_ptr;
8521 sig = mono_method_signature (method);
8522 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8524 param_count = sig->param_count + sig->hasthis;
8526 for (i = 0; i < param_count; i++)
8527 mono_mb_emit_ldarg (mb, i);
8529 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8530 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8532 mono_mb_emit_op (mb, CEE_CALL, method);
8533 mono_mb_emit_byte (mb, CEE_RET);
8538 method = mono_mb_create (mb, sig, param_count, NULL);
8541 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8542 mono_error_assert_ok (&error);
8543 return compiled_ptr;
8549 * The code directly following this is the cache hit, value positive branch
8551 * This function takes a new method builder with 0 locals and adds two locals
8552 * to create multiple out-branches and the fall through state of having the object
8553 * on the stack after a cache miss
8556 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8557 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8558 MonoMethodBuilder *mb)
8562 /* allocate local 0 (pointer) obj_vtable */
8563 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8564 /* allocate local 1 (pointer) cached_vtable */
8565 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8568 mono_mb_emit_ldarg (mb, obj_arg_position);
8569 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8571 /*obj_vtable = obj->vtable;*/
8572 mono_mb_emit_ldarg (mb, obj_arg_position);
8573 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8574 mono_mb_emit_byte (mb, CEE_LDIND_I);
8575 mono_mb_emit_stloc (mb, 0);
8577 /* cached_vtable = *cache*/
8578 mono_mb_emit_ldarg (mb, cache_arg_position);
8579 mono_mb_emit_byte (mb, CEE_LDIND_I);
8580 mono_mb_emit_stloc (mb, 1);
8582 mono_mb_emit_ldloc (mb, 1);
8583 mono_mb_emit_byte (mb, CEE_LDC_I4);
8584 mono_mb_emit_i4 (mb, ~0x1);
8585 mono_mb_emit_byte (mb, CEE_CONV_I);
8586 mono_mb_emit_byte (mb, CEE_AND);
8587 mono_mb_emit_ldloc (mb, 0);
8588 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8589 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8591 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8592 mono_mb_emit_ldloc (mb, 1);
8593 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8594 mono_mb_emit_byte (mb, CEE_CONV_U);
8595 mono_mb_emit_byte (mb, CEE_AND);
8596 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8597 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8600 mono_mb_patch_branch (mb, cache_miss_pos);
8603 mono_mb_emit_ldarg (mb, obj_arg_position);
8604 mono_mb_emit_ldarg (mb, class_arg_position);
8605 mono_mb_emit_ldarg (mb, cache_arg_position);
8606 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8609 #endif /* DISABLE_JIT */
8612 * This does the equivalent of mono_object_castclass_with_cache.
8613 * The wrapper info for the wrapper is a WrapperInfo structure.
8616 mono_marshal_get_castclass_with_cache (void)
8618 static MonoMethod *cached;
8620 MonoMethodBuilder *mb;
8621 MonoMethodSignature *sig;
8622 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8625 const int obj_arg_position = 0;
8626 const int class_arg_position = 1;
8627 const int cache_arg_position = 2;
8632 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8633 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8634 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8635 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8636 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8637 sig->ret = &mono_defaults.object_class->byval_arg;
8641 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8642 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8643 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8646 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8647 mono_mb_emit_ldarg (mb, obj_arg_position);
8648 mono_mb_emit_byte (mb, CEE_RET);
8651 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8652 mono_mb_patch_branch (mb, invalid_cast_pos);
8653 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8656 mono_mb_patch_branch (mb, return_null_pos);
8657 mono_mb_emit_byte (mb, CEE_LDNULL);
8658 mono_mb_emit_byte (mb, CEE_RET);
8659 #endif /* DISABLE_JIT */
8661 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8662 res = mono_mb_create (mb, sig, 8, info);
8665 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8666 mono_free_method (res);
8667 mono_metadata_free_method_signature (sig);
8675 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8678 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8679 mono_error_raise_exception (&error); /* FIXME don't raise here */
8681 #ifndef DISABLE_REMOTING
8682 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8686 uintptr_t cache_update = (uintptr_t)obj->vtable;
8688 cache_update = cache_update | 0x1;
8690 *cache = cache_update;
8696 * This does the equivalent of mono_object_isinst_with_cache.
8697 * The wrapper info for the wrapper is a WrapperInfo structure.
8700 mono_marshal_get_isinst_with_cache (void)
8702 static MonoMethod *cached;
8704 MonoMethodBuilder *mb;
8705 MonoMethodSignature *sig;
8706 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8709 const int obj_arg_position = 0;
8710 const int class_arg_position = 1;
8711 const int cache_arg_position = 2;
8716 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8717 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8719 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8721 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8723 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8724 sig->ret = &mono_defaults.object_class->byval_arg;
8728 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8729 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8730 // Return the object gotten via the slow path.
8731 mono_mb_emit_byte (mb, CEE_RET);
8734 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8735 mono_mb_patch_branch (mb, return_null_pos);
8736 mono_mb_emit_byte (mb, CEE_LDNULL);
8737 mono_mb_emit_byte (mb, CEE_RET);
8740 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8741 mono_mb_emit_ldarg (mb, obj_arg_position);
8742 mono_mb_emit_byte (mb, CEE_RET);
8745 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8746 res = mono_mb_create (mb, sig, 8, info);
8749 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8750 mono_free_method (res);
8751 mono_metadata_free_method_signature (sig);
8759 * mono_marshal_get_isinst:
8760 * @klass: the type of the field
8762 * This method generates a function which can be used to check if an object is
8763 * an instance of the given type, icluding the case where the object is a proxy.
8764 * The generated function has the following signature:
8765 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8768 mono_marshal_get_isinst (MonoClass *klass)
8770 static MonoMethodSignature *isint_sig = NULL;
8774 int pos_was_ok, pos_end;
8775 #ifndef DISABLE_REMOTING
8776 int pos_end2, pos_failed;
8779 MonoMethodBuilder *mb;
8781 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8782 if ((res = mono_marshal_find_in_cache (cache, klass)))
8786 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8787 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8788 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8789 isint_sig->pinvoke = 0;
8792 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8793 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8796 mb->method->save_lmf = 1;
8799 /* check if the object is a proxy that needs special cast */
8800 mono_mb_emit_ldarg (mb, 0);
8801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8802 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8804 /* The result of MONO_CISINST can be:
8805 0) the type check succeeded
8806 1) the type check did not succeed
8807 2) a CanCastTo call is needed */
8808 #ifndef DISABLE_REMOTING
8809 mono_mb_emit_byte (mb, CEE_DUP);
8810 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8812 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8813 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8815 /* get the real proxy from the transparent proxy*/
8817 mono_mb_emit_ldarg (mb, 0);
8818 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8819 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8823 mono_mb_patch_branch (mb, pos_failed);
8824 mono_mb_emit_byte (mb, CEE_LDNULL);
8825 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8829 mono_mb_patch_branch (mb, pos_was_ok);
8830 mono_mb_emit_byte (mb, CEE_POP);
8831 mono_mb_emit_ldarg (mb, 0);
8835 mono_mb_patch_branch (mb, pos_end);
8836 mono_mb_patch_branch (mb, pos_end2);
8837 mono_mb_emit_byte (mb, CEE_RET);
8839 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8843 mono_mb_emit_byte (mb, CEE_LDNULL);
8844 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8848 mono_mb_patch_branch (mb, pos_was_ok);
8849 mono_mb_emit_ldarg (mb, 0);
8853 mono_mb_patch_branch (mb, pos_end);
8854 mono_mb_emit_byte (mb, CEE_RET);
8855 #endif /* DISABLE_REMOTING */
8856 #endif /* DISABLE_JIT */
8858 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8859 info->d.proxy.klass = klass;
8860 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8867 * mono_marshal_get_castclass:
8868 * @klass: the type of the field
8870 * This method generates a function which can be used to cast an object to
8871 * an instance of the given type, icluding the case where the object is a proxy.
8872 * The generated function has the following signature:
8873 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8874 * The wrapper info for the wrapper is a WrapperInfo structure.
8877 mono_marshal_get_castclass (MonoClass *klass)
8879 static MonoMethodSignature *castclass_sig = NULL;
8882 #ifndef DISABLE_REMOTING
8883 int pos_was_ok, pos_was_ok2;
8886 MonoMethodBuilder *mb;
8889 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8890 if ((res = mono_marshal_find_in_cache (cache, klass)))
8893 if (!castclass_sig) {
8894 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8895 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8896 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8897 castclass_sig->pinvoke = 0;
8900 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8901 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8904 mb->method->save_lmf = 1;
8907 /* check if the object is a proxy that needs special cast */
8908 mono_mb_emit_ldarg (mb, 0);
8909 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8910 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8912 /* The result of MONO_CCASTCLASS can be:
8913 0) the cast is valid
8914 1) cast of unknown proxy type
8915 or an exception if the cast is is invalid
8917 #ifndef DISABLE_REMOTING
8918 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8920 /* get the real proxy from the transparent proxy*/
8922 mono_mb_emit_ldarg (mb, 0);
8923 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8924 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8927 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8930 mono_mb_patch_branch (mb, pos_was_ok);
8931 mono_mb_patch_branch (mb, pos_was_ok2);
8933 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8934 mono_mb_emit_byte (mb, CEE_POP);
8935 #endif /* DISABLE_REMOTING */
8937 mono_mb_emit_ldarg (mb, 0);
8940 mono_mb_emit_byte (mb, CEE_RET);
8941 #endif /* DISABLE_JIT */
8943 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8945 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8953 * mono_marshal_get_struct_to_ptr:
8956 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8957 * The wrapper info for the wrapper is a WrapperInfo structure.
8960 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8962 MonoMethodBuilder *mb;
8963 static MonoMethod *stoptr = NULL;
8967 g_assert (klass != NULL);
8969 mono_marshal_load_type_info (klass);
8971 if (klass->marshal_info->str_to_ptr)
8972 return klass->marshal_info->str_to_ptr;
8975 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8978 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8981 if (klass->blittable) {
8982 mono_mb_emit_byte (mb, CEE_LDARG_1);
8983 mono_mb_emit_byte (mb, CEE_LDARG_0);
8984 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8985 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8986 mono_mb_emit_byte (mb, CEE_PREFIX1);
8987 mono_mb_emit_byte (mb, CEE_CPBLK);
8990 /* allocate local 0 (pointer) src_ptr */
8991 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8992 /* allocate local 1 (pointer) dst_ptr */
8993 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8994 /* allocate local 2 (boolean) delete_old */
8995 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8996 mono_mb_emit_byte (mb, CEE_LDARG_2);
8997 mono_mb_emit_stloc (mb, 2);
8999 /* initialize src_ptr to point to the start of object data */
9000 mono_mb_emit_byte (mb, CEE_LDARG_0);
9001 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9002 mono_mb_emit_stloc (mb, 0);
9004 /* initialize dst_ptr */
9005 mono_mb_emit_byte (mb, CEE_LDARG_1);
9006 mono_mb_emit_stloc (mb, 1);
9008 emit_struct_conv (mb, klass, FALSE);
9011 mono_mb_emit_byte (mb, CEE_RET);
9013 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9014 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9017 mono_marshal_lock ();
9018 if (!klass->marshal_info->str_to_ptr)
9019 klass->marshal_info->str_to_ptr = res;
9021 res = klass->marshal_info->str_to_ptr;
9022 mono_marshal_unlock ();
9027 * mono_marshal_get_ptr_to_struct:
9030 * generates IL code for PtrToStructure (IntPtr src, object structure)
9031 * The wrapper info for the wrapper is a WrapperInfo structure.
9034 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9036 MonoMethodBuilder *mb;
9037 static MonoMethodSignature *ptostr = NULL;
9041 g_assert (klass != NULL);
9043 mono_marshal_load_type_info (klass);
9045 if (klass->marshal_info->ptr_to_str)
9046 return klass->marshal_info->ptr_to_str;
9049 MonoMethodSignature *sig;
9051 /* Create the signature corresponding to
9052 static void PtrToStructure (IntPtr ptr, object structure);
9053 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9054 sig = mono_create_icall_signature ("void ptr object");
9055 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9057 mono_memory_barrier ();
9061 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9064 if (klass->blittable) {
9065 mono_mb_emit_byte (mb, CEE_LDARG_1);
9066 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9067 mono_mb_emit_byte (mb, CEE_LDARG_0);
9068 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9069 mono_mb_emit_byte (mb, CEE_PREFIX1);
9070 mono_mb_emit_byte (mb, CEE_CPBLK);
9073 /* allocate local 0 (pointer) src_ptr */
9074 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9075 /* allocate local 1 (pointer) dst_ptr */
9076 mono_mb_add_local (mb, &klass->this_arg);
9078 /* initialize src_ptr to point to the start of object data */
9079 mono_mb_emit_byte (mb, CEE_LDARG_0);
9080 mono_mb_emit_stloc (mb, 0);
9082 /* initialize dst_ptr */
9083 mono_mb_emit_byte (mb, CEE_LDARG_1);
9084 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9085 mono_mb_emit_stloc (mb, 1);
9087 emit_struct_conv (mb, klass, TRUE);
9090 mono_mb_emit_byte (mb, CEE_RET);
9092 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9093 res = mono_mb_create (mb, ptostr, 0, info);
9096 mono_marshal_lock ();
9097 if (!klass->marshal_info->ptr_to_str)
9098 klass->marshal_info->ptr_to_str = res;
9100 res = klass->marshal_info->ptr_to_str;
9101 mono_marshal_unlock ();
9106 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9107 * This is used to avoid infinite recursion since it is hard to determine where to
9108 * replace a method with its synchronized wrapper, and where not.
9109 * The runtime should execute METHOD instead of the wrapper.
9110 * The wrapper info for the wrapper is a WrapperInfo structure.
9113 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9115 MonoMethodBuilder *mb;
9117 MonoMethodSignature *sig;
9119 MonoGenericContext *ctx = NULL;
9120 MonoGenericContainer *container = NULL;
9122 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9123 ctx = &((MonoMethodInflated*)method)->context;
9124 method = ((MonoMethodInflated*)method)->declaring;
9125 container = mono_method_get_generic_container (method);
9127 container = method->klass->generic_container;
9128 g_assert (container);
9131 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9133 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9134 mono_mb_emit_byte (mb, CEE_RET);
9136 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9138 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9139 info->d.synchronized_inner.method = method;
9140 res = mono_mb_create (mb, sig, 0, info);
9144 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9145 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9151 * generates IL code for the synchronized wrapper: the generated method
9152 * calls METHOD while locking 'this' or the parent type.
9155 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9157 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9158 MonoMethodSignature *sig;
9159 MonoExceptionClause *clause;
9160 MonoMethodBuilder *mb;
9164 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9165 MonoGenericContext *ctx = NULL;
9166 MonoMethod *orig_method = NULL;
9167 MonoGenericContainer *container = NULL;
9171 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9174 /* FIXME: Support generic methods too */
9175 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9176 orig_method = method;
9177 ctx = &((MonoMethodInflated*)method)->context;
9178 method = ((MonoMethodInflated*)method)->declaring;
9179 container = mono_method_get_generic_container (method);
9181 container = method->klass->generic_container;
9182 g_assert (container);
9189 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9190 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9194 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9195 if ((res = mono_marshal_find_in_cache (cache, method)))
9199 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9202 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9204 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9205 info->d.synchronized.method = method;
9208 mb->skip_visibility = 1;
9210 if (!MONO_TYPE_IS_VOID (sig->ret))
9211 ret_local = mono_mb_add_local (mb, sig->ret);
9214 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9215 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9217 /* This will throw the type load exception when the wrapper is compiled */
9218 mono_mb_emit_byte (mb, CEE_LDNULL);
9219 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9220 mono_mb_emit_byte (mb, CEE_POP);
9222 if (!MONO_TYPE_IS_VOID (sig->ret))
9223 mono_mb_emit_ldloc (mb, ret_local);
9224 mono_mb_emit_byte (mb, CEE_RET);
9227 res = mono_mb_create_and_cache_full (cache, method,
9228 mb, sig, sig->param_count + 16, info, NULL);
9236 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9237 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9239 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9240 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9243 mono_marshal_lock ();
9245 if (!enter_method) {
9246 MonoMethodDesc *desc;
9248 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9249 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9250 g_assert (enter_method);
9251 mono_method_desc_free (desc);
9253 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9254 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9255 g_assert (exit_method);
9256 mono_method_desc_free (desc);
9258 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9259 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9260 g_assert (gettypefromhandle_method);
9261 mono_method_desc_free (desc);
9264 mono_marshal_unlock ();
9267 /* Push this or the type object */
9268 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9269 /* We have special handling for this in the JIT */
9270 int index = mono_mb_add_data (mb, method->klass);
9271 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9272 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9273 mono_mb_emit_i4 (mb, index);
9275 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9278 mono_mb_emit_ldarg (mb, 0);
9279 mono_mb_emit_stloc (mb, this_local);
9281 /* Call Monitor::Enter() */
9282 mono_mb_emit_ldloc (mb, this_local);
9283 mono_mb_emit_ldloc_addr (mb, taken_local);
9284 mono_mb_emit_managed_call (mb, enter_method, NULL);
9286 clause->try_offset = mono_mb_get_label (mb);
9288 /* Call the method */
9290 mono_mb_emit_ldarg (mb, 0);
9291 for (i = 0; i < sig->param_count; i++)
9292 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9296 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9297 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9299 mono_mb_emit_managed_call (mb, method, NULL);
9302 if (!MONO_TYPE_IS_VOID (sig->ret))
9303 mono_mb_emit_stloc (mb, ret_local);
9305 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9307 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9308 clause->handler_offset = mono_mb_get_label (mb);
9310 /* Call Monitor::Exit() if needed */
9311 mono_mb_emit_ldloc (mb, taken_local);
9312 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9313 mono_mb_emit_ldloc (mb, this_local);
9314 mono_mb_emit_managed_call (mb, exit_method, NULL);
9315 mono_mb_patch_branch (mb, pos2);
9316 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9318 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9320 mono_mb_patch_branch (mb, pos);
9321 if (!MONO_TYPE_IS_VOID (sig->ret))
9322 mono_mb_emit_ldloc (mb, ret_local);
9323 mono_mb_emit_byte (mb, CEE_RET);
9325 mono_mb_set_clauses (mb, 1, clause);
9330 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9331 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9333 res = mono_mb_create_and_cache_full (cache, method,
9334 mb, sig, sig->param_count + 16, info, NULL);
9343 * the returned method calls 'method' unboxing the this argument
9346 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9348 MonoMethodSignature *sig = mono_method_signature (method);
9350 MonoMethodBuilder *mb;
9355 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9357 if ((res = mono_marshal_find_in_cache (cache, method)))
9360 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9362 g_assert (sig->hasthis);
9365 mono_mb_emit_ldarg (mb, 0);
9366 mono_mb_emit_icon (mb, sizeof (MonoObject));
9367 mono_mb_emit_byte (mb, CEE_ADD);
9368 for (i = 0; i < sig->param_count; ++i)
9369 mono_mb_emit_ldarg (mb, i + 1);
9370 mono_mb_emit_managed_call (mb, method, NULL);
9371 mono_mb_emit_byte (mb, CEE_RET);
9374 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9375 info->d.unbox.method = method;
9377 res = mono_mb_create_and_cache_full (cache, method,
9378 mb, sig, sig->param_count + 16, info, NULL);
9381 /* mono_method_print_code (res); */
9387 STELEMREF_OBJECT, /*no check at all*/
9388 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9389 STELEMREF_CLASS, /*only the klass->parents check*/
9390 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9391 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9392 STELEMREF_KIND_COUNT
9395 static const char *strelemref_wrapper_name[] = {
9396 "object", "sealed_class", "class", "interface", "complex"
9400 is_monomorphic_array (MonoClass *klass)
9402 MonoClass *element_class;
9403 if (klass->rank != 1)
9406 element_class = klass->element_class;
9407 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9411 get_virtual_stelemref_kind (MonoClass *element_class)
9413 if (element_class == mono_defaults.object_class)
9414 return STELEMREF_OBJECT;
9415 if (is_monomorphic_array (element_class))
9416 return STELEMREF_SEALED_CLASS;
9417 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9418 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9419 #ifdef COMPRESSED_INTERFACE_BITMAP
9420 return STELEMREF_COMPLEX;
9422 return STELEMREF_INTERFACE;
9424 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9425 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9426 return STELEMREF_COMPLEX;
9427 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9428 return STELEMREF_SEALED_CLASS;
9429 return STELEMREF_CLASS;
9435 load_array_element_address (MonoMethodBuilder *mb)
9437 mono_mb_emit_ldarg (mb, 0);
9438 mono_mb_emit_ldarg (mb, 1);
9439 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9443 load_array_class (MonoMethodBuilder *mb, int aklass)
9445 mono_mb_emit_ldarg (mb, 0);
9446 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9447 mono_mb_emit_byte (mb, CEE_LDIND_I);
9448 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9449 mono_mb_emit_byte (mb, CEE_LDIND_I);
9450 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9451 mono_mb_emit_byte (mb, CEE_LDIND_I);
9452 mono_mb_emit_stloc (mb, aklass);
9456 load_value_class (MonoMethodBuilder *mb, int vklass)
9458 mono_mb_emit_ldarg (mb, 2);
9459 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9460 mono_mb_emit_byte (mb, CEE_LDIND_I);
9461 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9462 mono_mb_emit_byte (mb, CEE_LDIND_I);
9463 mono_mb_emit_stloc (mb, vklass);
9469 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9471 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9472 printf ("slow vstore of %s\n", name);
9478 * The wrapper info for the wrapper is a WrapperInfo structure.
9481 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9482 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9483 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9484 * - Add a case for arrays of arrays.
9487 get_virtual_stelemref_wrapper (int kind)
9489 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9490 static MonoMethodSignature *signature;
9491 MonoMethodBuilder *mb;
9494 const char *param_names [16];
9496 int aklass, vklass, vtable, uiid;
9497 int array_slot_addr;
9500 if (cached_methods [kind])
9501 return cached_methods [kind];
9503 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9504 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9508 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9510 /* void this::stelemref (size_t idx, void* value) */
9511 sig->ret = &mono_defaults.void_class->byval_arg;
9512 sig->hasthis = TRUE;
9513 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9514 sig->params [1] = &mono_defaults.object_class->byval_arg;
9519 param_names [0] = "index";
9520 param_names [1] = "value";
9521 mono_mb_set_param_names (mb, param_names);
9523 /*For now simply call plain old stelemref*/
9525 case STELEMREF_OBJECT:
9526 /* ldelema (implicit bound check) */
9527 load_array_element_address (mb);
9529 mono_mb_emit_ldarg (mb, 2);
9530 mono_mb_emit_byte (mb, CEE_STIND_REF);
9531 mono_mb_emit_byte (mb, CEE_RET);
9534 case STELEMREF_COMPLEX:
9536 <ldelema (bound check)>
9539 if (!mono_object_isinst (value, aklass))
9543 *array_slot_addr = value;
9546 throw new ArrayTypeMismatchException ();
9549 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9550 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9554 /*Use this to debug/record stores that are going thru the slow path*/
9555 MonoMethodSignature *csig;
9556 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9557 csig->ret = &mono_defaults.void_class->byval_arg;
9558 csig->params [0] = &mono_defaults.object_class->byval_arg;
9559 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9560 csig->params [2] = &mono_defaults.object_class->byval_arg;
9561 mono_mb_emit_ldarg (mb, 0);
9562 mono_mb_emit_ldarg (mb, 1);
9563 mono_mb_emit_ldarg (mb, 2);
9564 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9568 /* ldelema (implicit bound check) */
9569 load_array_element_address (mb);
9570 mono_mb_emit_stloc (mb, array_slot_addr);
9572 /* if (!value) goto do_store */
9573 mono_mb_emit_ldarg (mb, 2);
9574 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9576 /* aklass = array->vtable->klass->element_class */
9577 load_array_class (mb, aklass);
9579 /*if (mono_object_isinst (value, aklass)) */
9580 mono_mb_emit_ldarg (mb, 2);
9581 mono_mb_emit_ldloc (mb, aklass);
9582 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9583 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9586 mono_mb_patch_branch (mb, b1);
9587 mono_mb_emit_ldloc (mb, array_slot_addr);
9588 mono_mb_emit_ldarg (mb, 2);
9589 mono_mb_emit_byte (mb, CEE_STIND_REF);
9590 mono_mb_emit_byte (mb, CEE_RET);
9593 mono_mb_patch_branch (mb, b2);
9595 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9598 case STELEMREF_SEALED_CLASS:
9600 <ldelema (bound check)>
9604 aklass = array->vtable->klass->element_class;
9605 vklass = value->vtable->klass;
9607 if (vklass != aklass)
9611 *array_slot_addr = value;
9614 throw new ArrayTypeMismatchException ();
9616 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9617 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9618 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9621 /* ldelema (implicit bound check) */
9622 load_array_element_address (mb);
9623 mono_mb_emit_stloc (mb, array_slot_addr);
9625 /* if (!value) goto do_store */
9626 mono_mb_emit_ldarg (mb, 2);
9627 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9629 /* aklass = array->vtable->klass->element_class */
9630 load_array_class (mb, aklass);
9632 /* vklass = value->vtable->klass */
9633 load_value_class (mb, vklass);
9635 /*if (vklass != aklass) goto do_exception; */
9636 mono_mb_emit_ldloc (mb, aklass);
9637 mono_mb_emit_ldloc (mb, vklass);
9638 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9641 mono_mb_patch_branch (mb, b1);
9642 mono_mb_emit_ldloc (mb, array_slot_addr);
9643 mono_mb_emit_ldarg (mb, 2);
9644 mono_mb_emit_byte (mb, CEE_STIND_REF);
9645 mono_mb_emit_byte (mb, CEE_RET);
9648 mono_mb_patch_branch (mb, b2);
9649 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9652 case STELEMREF_CLASS:
9655 <ldelema (bound check)>
9659 aklass = array->vtable->klass->element_class;
9660 vklass = value->vtable->klass;
9662 if (vklass->idepth < aklass->idepth)
9665 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9669 *array_slot_addr = value;
9673 throw new ArrayTypeMismatchException ();
9675 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9676 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9677 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9679 /* ldelema (implicit bound check) */
9680 load_array_element_address (mb);
9681 mono_mb_emit_stloc (mb, array_slot_addr);
9683 /* if (!value) goto do_store */
9684 mono_mb_emit_ldarg (mb, 2);
9685 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9687 /* aklass = array->vtable->klass->element_class */
9688 load_array_class (mb, aklass);
9690 /* vklass = value->vtable->klass */
9691 load_value_class (mb, vklass);
9693 /*if (mono_object_isinst (value, aklass)) */
9694 mono_mb_emit_ldarg (mb, 2);
9695 mono_mb_emit_ldloc (mb, aklass);
9696 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9697 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9699 /* if (vklass->idepth < aklass->idepth) goto failue */
9700 mono_mb_emit_ldloc (mb, vklass);
9701 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9702 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9704 mono_mb_emit_ldloc (mb, aklass);
9705 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9706 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9708 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9710 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9711 mono_mb_emit_ldloc (mb, vklass);
9712 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9713 mono_mb_emit_byte (mb, CEE_LDIND_I);
9715 mono_mb_emit_ldloc (mb, aklass);
9716 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9717 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9718 mono_mb_emit_icon (mb, 1);
9719 mono_mb_emit_byte (mb, CEE_SUB);
9720 mono_mb_emit_icon (mb, sizeof (void*));
9721 mono_mb_emit_byte (mb, CEE_MUL);
9722 mono_mb_emit_byte (mb, CEE_ADD);
9723 mono_mb_emit_byte (mb, CEE_LDIND_I);
9725 mono_mb_emit_ldloc (mb, aklass);
9726 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9729 mono_mb_patch_branch (mb, b1);
9730 mono_mb_emit_ldloc (mb, array_slot_addr);
9731 mono_mb_emit_ldarg (mb, 2);
9732 mono_mb_emit_byte (mb, CEE_STIND_REF);
9733 mono_mb_emit_byte (mb, CEE_RET);
9736 mono_mb_patch_branch (mb, b2);
9737 mono_mb_patch_branch (mb, b3);
9739 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9742 case STELEMREF_INTERFACE:
9749 klass = array->obj.vtable->klass->element_class;
9751 uiid = klass->interface_id;
9752 if (uiid > vt->max_interface_id)
9754 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9757 mono_array_setref (array, index, value);
9760 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9762 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9763 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9764 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9765 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9767 /* ldelema (implicit bound check) */
9768 load_array_element_address (mb);
9769 mono_mb_emit_stloc (mb, array_slot_addr);
9771 /* if (!value) goto do_store */
9772 mono_mb_emit_ldarg (mb, 2);
9773 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9775 /* klass = array->vtable->klass->element_class */
9776 load_array_class (mb, aklass);
9778 /* vt = value->vtable */
9779 mono_mb_emit_ldarg (mb, 2);
9780 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9781 mono_mb_emit_byte (mb, CEE_LDIND_I);
9782 mono_mb_emit_stloc (mb, vtable);
9784 /* uiid = klass->interface_id; */
9785 mono_mb_emit_ldloc (mb, aklass);
9786 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9787 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9788 mono_mb_emit_stloc (mb, uiid);
9790 /*if (uiid > vt->max_interface_id)*/
9791 mono_mb_emit_ldloc (mb, uiid);
9792 mono_mb_emit_ldloc (mb, vtable);
9793 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9794 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9795 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9797 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9799 /*vt->interface_bitmap*/
9800 mono_mb_emit_ldloc (mb, vtable);
9801 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9802 mono_mb_emit_byte (mb, CEE_LDIND_I);
9805 mono_mb_emit_ldloc (mb, uiid);
9806 mono_mb_emit_icon (mb, 3);
9807 mono_mb_emit_byte (mb, CEE_SHR_UN);
9809 /*vt->interface_bitmap [(uiid) >> 3]*/
9810 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9811 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9813 /*(1 << ((uiid)&7)))*/
9814 mono_mb_emit_icon (mb, 1);
9815 mono_mb_emit_ldloc (mb, uiid);
9816 mono_mb_emit_icon (mb, 7);
9817 mono_mb_emit_byte (mb, CEE_AND);
9818 mono_mb_emit_byte (mb, CEE_SHL);
9820 /*bitwise and the whole thing*/
9821 mono_mb_emit_byte (mb, CEE_AND);
9822 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9825 mono_mb_patch_branch (mb, b1);
9826 mono_mb_emit_ldloc (mb, array_slot_addr);
9827 mono_mb_emit_ldarg (mb, 2);
9828 mono_mb_emit_byte (mb, CEE_STIND_REF);
9829 mono_mb_emit_byte (mb, CEE_RET);
9832 mono_mb_patch_branch (mb, b2);
9833 mono_mb_patch_branch (mb, b3);
9834 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9838 mono_mb_emit_ldarg (mb, 0);
9839 mono_mb_emit_ldarg (mb, 1);
9840 mono_mb_emit_ldarg (mb, 2);
9841 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9842 mono_mb_emit_byte (mb, CEE_RET);
9845 #endif /* DISABLE_JIT */
9846 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9847 info->d.virtual_stelemref.kind = kind;
9848 res = mono_mb_create (mb, signature, 4, info);
9849 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9851 mono_marshal_lock ();
9852 if (!cached_methods [kind]) {
9853 cached_methods [kind] = res;
9854 mono_marshal_unlock ();
9856 mono_marshal_unlock ();
9857 mono_free_method (res);
9861 return cached_methods [kind];
9865 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9869 g_assert (array_class->rank == 1);
9870 kind = get_virtual_stelemref_kind (array_class->element_class);
9872 return get_virtual_stelemref_wrapper (kind);
9876 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9881 *nwrappers = STELEMREF_KIND_COUNT;
9882 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9883 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9884 res [i] = get_virtual_stelemref_wrapper (i);
9889 * The wrapper info for the wrapper is a WrapperInfo structure.
9892 mono_marshal_get_stelemref (void)
9894 static MonoMethod* ret = NULL;
9895 MonoMethodSignature *sig;
9896 MonoMethodBuilder *mb;
9899 guint32 b1, b2, b3, b4;
9902 int array_slot_addr;
9907 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9910 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9912 /* void stelemref (void* array, int idx, void* value) */
9913 sig->ret = &mono_defaults.void_class->byval_arg;
9914 sig->params [0] = &mono_defaults.object_class->byval_arg;
9915 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9916 sig->params [2] = &mono_defaults.object_class->byval_arg;
9919 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9920 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9921 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9925 <ldelema (bound check)>
9929 aklass = array->vtable->klass->element_class;
9930 vklass = value->vtable->klass;
9932 if (vklass->idepth < aklass->idepth)
9935 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9939 *array_slot_addr = value;
9943 if (mono_object_isinst (value, aklass))
9946 throw new ArrayTypeMismatchException ();
9949 /* ldelema (implicit bound check) */
9950 mono_mb_emit_ldarg (mb, 0);
9951 mono_mb_emit_ldarg (mb, 1);
9952 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9953 mono_mb_emit_stloc (mb, array_slot_addr);
9955 /* if (!value) goto do_store */
9956 mono_mb_emit_ldarg (mb, 2);
9957 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9959 /* aklass = array->vtable->klass->element_class */
9960 mono_mb_emit_ldarg (mb, 0);
9961 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9962 mono_mb_emit_byte (mb, CEE_LDIND_I);
9963 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9964 mono_mb_emit_byte (mb, CEE_LDIND_I);
9965 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9966 mono_mb_emit_byte (mb, CEE_LDIND_I);
9967 mono_mb_emit_stloc (mb, aklass);
9969 /* vklass = value->vtable->klass */
9970 mono_mb_emit_ldarg (mb, 2);
9971 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9972 mono_mb_emit_byte (mb, CEE_LDIND_I);
9973 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9974 mono_mb_emit_byte (mb, CEE_LDIND_I);
9975 mono_mb_emit_stloc (mb, vklass);
9977 /* if (vklass->idepth < aklass->idepth) goto failue */
9978 mono_mb_emit_ldloc (mb, vklass);
9979 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9980 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9982 mono_mb_emit_ldloc (mb, aklass);
9983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9984 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9986 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9988 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9989 mono_mb_emit_ldloc (mb, vklass);
9990 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9991 mono_mb_emit_byte (mb, CEE_LDIND_I);
9993 mono_mb_emit_ldloc (mb, aklass);
9994 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9995 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9996 mono_mb_emit_icon (mb, 1);
9997 mono_mb_emit_byte (mb, CEE_SUB);
9998 mono_mb_emit_icon (mb, sizeof (void*));
9999 mono_mb_emit_byte (mb, CEE_MUL);
10000 mono_mb_emit_byte (mb, CEE_ADD);
10001 mono_mb_emit_byte (mb, CEE_LDIND_I);
10003 mono_mb_emit_ldloc (mb, aklass);
10005 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10007 copy_pos = mono_mb_get_label (mb);
10009 mono_mb_patch_branch (mb, b1);
10010 mono_mb_emit_ldloc (mb, array_slot_addr);
10011 mono_mb_emit_ldarg (mb, 2);
10012 mono_mb_emit_byte (mb, CEE_STIND_REF);
10014 mono_mb_emit_byte (mb, CEE_RET);
10017 mono_mb_patch_branch (mb, b2);
10018 mono_mb_patch_branch (mb, b3);
10020 mono_mb_emit_ldarg (mb, 2);
10021 mono_mb_emit_ldloc (mb, aklass);
10022 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10024 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10025 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10026 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10028 mono_mb_emit_byte (mb, CEE_RET);
10030 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10031 ret = mono_mb_create (mb, sig, 4, info);
10038 * mono_marshal_get_gsharedvt_in_wrapper:
10040 * This wrapper handles calls from normal code to gsharedvt code.
10042 * The wrapper info for the wrapper is a WrapperInfo structure.
10045 mono_marshal_get_gsharedvt_in_wrapper (void)
10047 static MonoMethod* ret = NULL;
10048 MonoMethodSignature *sig;
10049 MonoMethodBuilder *mb;
10055 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10057 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10058 sig->ret = &mono_defaults.void_class->byval_arg;
10060 #ifndef DISABLE_JIT
10062 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10064 mono_mb_emit_byte (mb, CEE_RET);
10066 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10067 ret = mono_mb_create (mb, sig, 4, info);
10074 * mono_marshal_get_gsharedvt_out_wrapper:
10076 * This wrapper handles calls from gsharedvt code to normal code.
10078 * The wrapper info for the wrapper is a WrapperInfo structure.
10081 mono_marshal_get_gsharedvt_out_wrapper (void)
10083 static MonoMethod* ret = NULL;
10084 MonoMethodSignature *sig;
10085 MonoMethodBuilder *mb;
10091 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10093 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10094 sig->ret = &mono_defaults.void_class->byval_arg;
10096 #ifndef DISABLE_JIT
10098 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10100 mono_mb_emit_byte (mb, CEE_RET);
10102 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10103 ret = mono_mb_create (mb, sig, 4, info);
10112 MonoMethod *method;
10115 /* LOCKING: vars accessed under the marshal lock */
10116 static ArrayElemAddr *elem_addr_cache = NULL;
10117 static int elem_addr_cache_size = 0;
10118 static int elem_addr_cache_next = 0;
10121 * mono_marshal_get_array_address:
10122 * @rank: rank of the array type
10123 * @elem_size: size in bytes of an element of an array.
10125 * Returns a MonoMethod that implements the code to get the address
10126 * of an element in a multi-dimenasional array of @rank dimensions.
10127 * The returned method takes an array as the first argument and then
10128 * @rank indexes for the @rank dimensions.
10129 * If ELEM_SIZE is 0, read the array size from the array object.
10132 mono_marshal_get_array_address (int rank, int elem_size)
10135 MonoMethodBuilder *mb;
10136 MonoMethodSignature *sig;
10139 int i, bounds, ind, realidx;
10140 int branch_pos, *branch_positions;
10144 mono_marshal_lock ();
10145 for (i = 0; i < elem_addr_cache_next; ++i) {
10146 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10147 ret = elem_addr_cache [i].method;
10151 mono_marshal_unlock ();
10155 branch_positions = g_new0 (int, rank);
10157 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10159 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10160 sig->ret = &mono_defaults.int_class->byval_arg;
10161 sig->params [0] = &mono_defaults.object_class->byval_arg;
10162 for (i = 0; i < rank; ++i) {
10163 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10166 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10167 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10170 #ifndef DISABLE_JIT
10171 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10172 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10173 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10175 /* bounds = array->bounds; */
10176 mono_mb_emit_ldarg (mb, 0);
10177 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10178 mono_mb_emit_byte (mb, CEE_LDIND_I);
10179 mono_mb_emit_stloc (mb, bounds);
10181 /* ind is the overall element index, realidx is the partial index in a single dimension */
10182 /* ind = idx0 - bounds [0].lower_bound */
10183 mono_mb_emit_ldarg (mb, 1);
10184 mono_mb_emit_ldloc (mb, bounds);
10185 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10186 mono_mb_emit_byte (mb, CEE_ADD);
10187 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10188 mono_mb_emit_byte (mb, CEE_SUB);
10189 mono_mb_emit_stloc (mb, ind);
10190 /* if (ind >= bounds [0].length) goto exeception; */
10191 mono_mb_emit_ldloc (mb, ind);
10192 mono_mb_emit_ldloc (mb, bounds);
10193 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10194 mono_mb_emit_byte (mb, CEE_ADD);
10195 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10196 /* note that we use unsigned comparison */
10197 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10199 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10200 * We could also decide to ignore the passed elem_size and get it
10201 * from the array object, to reduce the number of methods we generate:
10202 * the additional cost is 3 memory loads and a non-immediate mul.
10204 for (i = 1; i < rank; ++i) {
10205 /* realidx = idxi - bounds [i].lower_bound */
10206 mono_mb_emit_ldarg (mb, 1 + i);
10207 mono_mb_emit_ldloc (mb, bounds);
10208 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10209 mono_mb_emit_byte (mb, CEE_ADD);
10210 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10211 mono_mb_emit_byte (mb, CEE_SUB);
10212 mono_mb_emit_stloc (mb, realidx);
10213 /* if (realidx >= bounds [i].length) goto exeception; */
10214 mono_mb_emit_ldloc (mb, realidx);
10215 mono_mb_emit_ldloc (mb, bounds);
10216 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10217 mono_mb_emit_byte (mb, CEE_ADD);
10218 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10219 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10220 /* ind = ind * bounds [i].length + realidx */
10221 mono_mb_emit_ldloc (mb, ind);
10222 mono_mb_emit_ldloc (mb, bounds);
10223 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10224 mono_mb_emit_byte (mb, CEE_ADD);
10225 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10226 mono_mb_emit_byte (mb, CEE_MUL);
10227 mono_mb_emit_ldloc (mb, realidx);
10228 mono_mb_emit_byte (mb, CEE_ADD);
10229 mono_mb_emit_stloc (mb, ind);
10232 /* return array->vector + ind * element_size */
10233 mono_mb_emit_ldarg (mb, 0);
10234 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10235 mono_mb_emit_ldloc (mb, ind);
10237 mono_mb_emit_icon (mb, elem_size);
10239 /* Load arr->vtable->klass->sizes.element_class */
10240 mono_mb_emit_ldarg (mb, 0);
10241 mono_mb_emit_byte (mb, CEE_CONV_I);
10242 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10243 mono_mb_emit_byte (mb, CEE_ADD);
10244 mono_mb_emit_byte (mb, CEE_LDIND_I);
10245 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10246 mono_mb_emit_byte (mb, CEE_ADD);
10247 mono_mb_emit_byte (mb, CEE_LDIND_I);
10248 /* sizes is an union, so this reads sizes.element_size */
10249 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10250 mono_mb_emit_byte (mb, CEE_ADD);
10251 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10253 mono_mb_emit_byte (mb, CEE_MUL);
10254 mono_mb_emit_byte (mb, CEE_ADD);
10255 mono_mb_emit_byte (mb, CEE_RET);
10257 /* patch the branches to get here and throw */
10258 for (i = 1; i < rank; ++i) {
10259 mono_mb_patch_branch (mb, branch_positions [i]);
10261 mono_mb_patch_branch (mb, branch_pos);
10262 /* throw exception */
10263 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10265 g_free (branch_positions);
10266 #endif /* DISABLE_JIT */
10268 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10269 info->d.element_addr.rank = rank;
10270 info->d.element_addr.elem_size = elem_size;
10271 ret = mono_mb_create (mb, sig, 4, info);
10274 /* cache the result */
10276 mono_marshal_lock ();
10277 for (i = 0; i < elem_addr_cache_next; ++i) {
10278 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10279 /* FIXME: free ret */
10280 ret = elem_addr_cache [i].method;
10286 if (elem_addr_cache_next >= elem_addr_cache_size) {
10287 int new_size = elem_addr_cache_size + 4;
10288 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10289 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10290 g_free (elem_addr_cache);
10291 elem_addr_cache = new_array;
10292 elem_addr_cache_size = new_size;
10294 elem_addr_cache [elem_addr_cache_next].rank = rank;
10295 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10296 elem_addr_cache [elem_addr_cache_next].method = ret;
10297 elem_addr_cache_next ++;
10299 mono_marshal_unlock ();
10304 * mono_marshal_get_array_accessor_wrapper:
10306 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10309 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10311 MonoMethodSignature *sig;
10312 MonoMethodBuilder *mb;
10316 MonoGenericContext *ctx = NULL;
10317 MonoMethod *orig_method = NULL;
10318 MonoGenericContainer *container = NULL;
10322 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10323 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10324 * FIXME: Use generic methods.
10331 g_assert_not_reached ();
10333 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10334 if ((res = mono_marshal_find_in_cache (cache, method)))
10338 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10341 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10343 #ifndef DISABLE_JIT
10344 /* Call the method */
10346 mono_mb_emit_ldarg (mb, 0);
10347 for (i = 0; i < sig->param_count; i++)
10348 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10352 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10353 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10355 mono_mb_emit_managed_call (mb, method, NULL);
10357 mono_mb_emit_byte (mb, CEE_RET);
10360 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10361 info->d.array_accessor.method = method;
10365 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10366 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10368 res = mono_mb_create_and_cache_full (cache, method,
10369 mb, sig, sig->param_count + 16,
10378 mono_marshal_alloc (gulong size, MonoError *error)
10382 mono_error_init (error);
10385 res = CoTaskMemAlloc (size);
10387 res = g_try_malloc ((gulong)size);
10389 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10394 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10396 ves_icall_marshal_alloc (gulong size)
10399 void *ret = mono_marshal_alloc (size, &error);
10400 if (!mono_error_ok (&error)) {
10401 mono_error_set_pending_exception (&error);
10409 mono_marshal_free (gpointer ptr)
10412 CoTaskMemFree (ptr);
10419 mono_marshal_free_array (gpointer *ptr, int size)
10426 for (i = 0; i < size; i++)
10432 mono_marshal_string_to_utf16 (MonoString *s)
10434 return s ? mono_string_chars (s) : NULL;
10437 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10439 mono_marshal_string_to_utf16_copy (MonoString *s)
10445 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10446 if (!mono_error_ok (&error)) {
10447 mono_error_set_pending_exception (&error);
10450 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10451 res [mono_string_length (s)] = 0;
10457 * mono_marshal_set_last_error:
10459 * This function is invoked to set the last error value from a P/Invoke call
10460 * which has SetLastError set.
10463 mono_marshal_set_last_error (void)
10466 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10468 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10473 mono_marshal_set_last_error_windows (int error)
10476 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10481 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10482 gpointer dest, gint32 length)
10487 MONO_CHECK_ARG_NULL (src,);
10488 MONO_CHECK_ARG_NULL (dest,);
10490 if (src->obj.vtable->klass->rank != 1) {
10491 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10494 if (start_index < 0) {
10495 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10499 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10502 if (start_index + length > mono_array_length (src)) {
10503 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10507 element_size = mono_array_element_size (src->obj.vtable->klass);
10509 /* no references should be involved */
10510 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10512 memcpy (dest, source_addr, length * element_size);
10516 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10517 MonoArray *dest, gint32 length)
10522 MONO_CHECK_ARG_NULL (src,);
10523 MONO_CHECK_ARG_NULL (dest,);
10525 if (dest->obj.vtable->klass->rank != 1) {
10526 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10529 if (start_index < 0) {
10530 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10534 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10537 if (start_index + length > mono_array_length (dest)) {
10538 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10541 element_size = mono_array_element_size (dest->obj.vtable->klass);
10543 /* no references should be involved */
10544 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10546 memcpy (dest_addr, src, length * element_size);
10550 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10555 return mono_string_new (mono_domain_get (), ptr);
10559 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10562 MonoString *result = NULL;
10563 mono_error_init (&error);
10565 mono_error_set_argument_null (&error, "ptr", "");
10567 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10568 mono_error_set_pending_exception (&error);
10573 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10576 MonoString *res = NULL;
10577 MonoDomain *domain = mono_domain_get ();
10587 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10588 if (!mono_error_ok (&error)) {
10589 mono_error_set_pending_exception (&error);
10596 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10599 MonoString *res = NULL;
10600 MonoDomain *domain = mono_domain_get ();
10602 mono_error_init (&error);
10606 mono_error_set_argument_null (&error, "ptr", "");
10608 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10611 if (!mono_error_ok (&error))
10612 mono_error_set_pending_exception (&error);
10617 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10619 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10623 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10629 MONO_CHECK_ARG_NULL (rtype, 0);
10631 type = rtype->type;
10632 klass = mono_class_from_mono_type (type);
10633 if (!mono_class_init (klass)) {
10634 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10638 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10640 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10641 return sizeof (gpointer);
10642 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10644 MonoException *exc;
10646 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10647 exc = mono_get_exception_argument ("t", msg);
10649 mono_set_pending_exception (exc);
10653 return mono_class_native_size (klass, NULL);
10657 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10660 MonoMethod *method;
10663 MONO_CHECK_ARG_NULL (obj,);
10664 MONO_CHECK_ARG_NULL (dst,);
10666 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10670 pa [2] = &delete_old;
10672 mono_runtime_invoke_checked (method, NULL, pa, &error);
10673 if (!mono_error_ok (&error))
10674 mono_error_set_pending_exception (&error);
10678 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10680 MonoMethod *method;
10683 mono_error_init (error);
10685 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10690 mono_runtime_invoke_checked (method, NULL, pa, error);
10694 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10699 MONO_CHECK_ARG_NULL (src,);
10700 MONO_CHECK_ARG_NULL (dst,);
10702 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10704 if (t->type == MONO_TYPE_VALUETYPE) {
10705 MonoException *exc;
10708 tmp = g_strdup_printf ("Destination is a boxed value type.");
10709 exc = mono_get_exception_argument ("dst", tmp);
10712 mono_set_pending_exception (exc);
10716 ptr_to_structure (src, dst, &error);
10717 if (!mono_error_ok (&error))
10718 mono_error_set_pending_exception (&error);
10722 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10726 MonoDomain *domain = mono_domain_get ();
10731 MONO_CHECK_ARG_NULL (type, NULL);
10733 klass = mono_class_from_mono_type (type->type);
10734 if (!mono_class_init (klass)) {
10735 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10739 res = mono_object_new_checked (domain, klass, &error);
10740 if (!mono_error_ok (&error)) {
10741 mono_error_set_pending_exception (&error);
10745 ptr_to_structure (src, res, &error);
10746 if (!mono_error_ok (&error)) {
10747 mono_error_set_pending_exception (&error);
10755 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10757 MonoMarshalType *info;
10760 int match_index = -1;
10762 MONO_CHECK_ARG_NULL (type, 0);
10763 MONO_CHECK_ARG_NULL (field_name, 0);
10765 fname = mono_string_to_utf8 (field_name);
10766 klass = mono_class_from_mono_type (type->type);
10767 if (!mono_class_init (klass)) {
10768 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10772 while (klass && match_index == -1) {
10773 MonoClassField* field;
10775 gpointer iter = NULL;
10776 while ((field = mono_class_get_fields (klass, &iter))) {
10777 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10779 if (!strcmp (fname, mono_field_get_name (field))) {
10786 if (match_index == -1)
10787 klass = klass->parent;
10792 if(match_index == -1) {
10793 MonoException* exc;
10796 /* Get back original class instance */
10797 klass = mono_class_from_mono_type (type->type);
10799 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10800 exc = mono_get_exception_argument ("fieldName", tmp);
10803 mono_set_pending_exception ((MonoException*)exc);
10807 info = mono_marshal_load_type_info (klass);
10808 return info->fields [match_index].offset;
10812 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10817 tres = mono_string_to_utf8 (string);
10821 len = strlen (tres) + 1;
10822 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10823 memcpy (ret, tres, len);
10828 return mono_string_to_utf8 (string);
10833 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10835 if (string == NULL)
10838 #ifdef TARGET_WIN32
10839 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10840 ((mono_string_length (string) + 1) * 2);
10842 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10844 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10845 res [mono_string_length (string)] = 0;
10851 mono_struct_delete_old (MonoClass *klass, char *ptr)
10853 MonoMarshalType *info;
10856 info = mono_marshal_load_type_info (klass);
10858 for (i = 0; i < info->num_fields; i++) {
10859 MonoMarshalConv conv;
10860 MonoType *ftype = info->fields [i].field->type;
10863 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10866 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10867 klass->unicode, &conv);
10869 cpos = ptr + info->fields [i].offset;
10872 case MONO_MARSHAL_CONV_NONE:
10873 if (MONO_TYPE_ISSTRUCT (ftype)) {
10874 mono_struct_delete_old (ftype->data.klass, cpos);
10878 case MONO_MARSHAL_CONV_STR_LPWSTR:
10879 /* We assume this field points inside a MonoString */
10881 case MONO_MARSHAL_CONV_STR_LPTSTR:
10882 #ifdef TARGET_WIN32
10883 /* We assume this field points inside a MonoString
10887 case MONO_MARSHAL_CONV_STR_LPSTR:
10888 case MONO_MARSHAL_CONV_STR_BSTR:
10889 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10890 case MONO_MARSHAL_CONV_STR_TBSTR:
10891 mono_marshal_free (*(gpointer *)cpos);
10901 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10905 MONO_CHECK_ARG_NULL (src,);
10906 MONO_CHECK_ARG_NULL (type,);
10908 klass = mono_class_from_mono_type (type->type);
10909 if (!mono_class_init (klass)) {
10910 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10914 mono_struct_delete_old (klass, (char *)src);
10918 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10921 size_t s = (size_t)size;
10924 /* This returns a valid pointer for size 0 on MS.NET */
10928 res = GlobalAlloc (GMEM_FIXED, s);
10930 res = g_try_malloc (s);
10933 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10941 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10944 size_t s = (size_t)size;
10947 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10952 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10954 res = g_try_realloc (ptr, s);
10957 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10965 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10975 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10980 res = CoTaskMemAlloc (size);
10982 if ((gulong)size == 0)
10983 /* This returns a valid pointer for size 0 on MS.NET */
10986 res = g_try_malloc ((gulong)size);
10989 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10996 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10999 CoTaskMemFree (ptr);
11006 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11011 res = CoTaskMemRealloc (ptr, size);
11013 res = g_try_realloc (ptr, (gulong)size);
11016 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11023 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11025 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11029 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11031 MonoClass *klass = mono_type_get_class (type->type);
11032 if (!mono_class_init (klass)) {
11033 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11037 return mono_ftnptr_to_delegate (klass, ftn);
11041 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11043 return mono_delegate_to_ftnptr (delegate);
11047 * mono_marshal_is_loading_type_info:
11049 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11053 mono_marshal_is_loading_type_info (MonoClass *klass)
11055 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11057 return g_slist_find (loads_list, klass) != NULL;
11061 * mono_marshal_load_type_info:
11063 * Initialize klass->marshal_info using information from metadata. This function can
11064 * recursively call itself, and the caller is responsible to avoid that by calling
11065 * mono_marshal_is_loading_type_info () beforehand.
11067 * LOCKING: Acquires the loader lock.
11070 mono_marshal_load_type_info (MonoClass* klass)
11073 guint32 native_size = 0, min_align = 1, packing;
11074 MonoMarshalType *info;
11075 MonoClassField* field;
11078 GSList *loads_list;
11080 g_assert (klass != NULL);
11082 if (klass->marshal_info)
11083 return klass->marshal_info;
11085 if (!klass->inited)
11086 mono_class_init (klass);
11088 if (klass->marshal_info)
11089 return klass->marshal_info;
11092 * This function can recursively call itself, so we keep the list of classes which are
11093 * under initialization in a TLS list.
11095 g_assert (!mono_marshal_is_loading_type_info (klass));
11096 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11097 loads_list = g_slist_prepend (loads_list, klass);
11098 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11101 while ((field = mono_class_get_fields (klass, &iter))) {
11102 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11104 if (mono_field_is_deleted (field))
11109 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11111 /* The mempool is protected by the loader lock */
11112 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11113 info->num_fields = count;
11115 /* Try to find a size for this type in metadata */
11116 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11118 if (klass->parent) {
11119 int parent_size = mono_class_native_size (klass->parent, NULL);
11121 /* Add parent size to real size */
11122 native_size += parent_size;
11123 info->native_size = parent_size;
11126 packing = klass->packing_size ? klass->packing_size : 8;
11129 while ((field = mono_class_get_fields (klass, &iter))) {
11133 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11136 if (mono_field_is_deleted (field))
11138 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11139 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11140 NULL, NULL, &info->fields [j].mspec);
11142 info->fields [j].field = field;
11144 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11145 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11146 /* This field is a hack inserted by MCS to empty structures */
11151 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11152 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11153 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11154 &align, TRUE, klass->unicode);
11155 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11156 min_align = MAX (align, min_align);
11157 info->fields [j].offset = info->native_size;
11158 info->fields [j].offset += align - 1;
11159 info->fields [j].offset &= ~(align - 1);
11160 info->native_size = info->fields [j].offset + size;
11162 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11163 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11164 &align, TRUE, klass->unicode);
11165 min_align = MAX (align, min_align);
11166 info->fields [j].offset = field->offset - sizeof (MonoObject);
11167 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11173 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11174 info->native_size = MAX (native_size, info->native_size);
11176 * If the provided Size is equal or larger than the calculated size, and there
11177 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11179 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11180 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11183 min_align = MIN (min_align, packing);
11187 if (info->native_size & (min_align - 1)) {
11188 info->native_size += min_align - 1;
11189 info->native_size &= ~(min_align - 1);
11192 info->min_align = min_align;
11194 /* Update the class's blittable info, if the layouts don't match */
11195 if (info->native_size != mono_class_value_size (klass, NULL))
11196 klass->blittable = FALSE;
11198 /* If this is an array type, ensure that we have element info */
11199 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11200 mono_marshal_load_type_info (klass->element_class);
11203 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11204 loads_list = g_slist_remove (loads_list, klass);
11205 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11207 mono_marshal_lock ();
11208 if (!klass->marshal_info) {
11209 /*We do double-checking locking on marshal_info */
11210 mono_memory_barrier ();
11211 klass->marshal_info = info;
11213 mono_marshal_unlock ();
11215 return klass->marshal_info;
11219 * mono_class_native_size:
11222 * Returns: the native size of an object instance (when marshaled
11223 * to unmanaged code)
11226 mono_class_native_size (MonoClass *klass, guint32 *align)
11228 if (!klass->marshal_info) {
11229 if (mono_marshal_is_loading_type_info (klass)) {
11234 mono_marshal_load_type_info (klass);
11239 *align = klass->marshal_info->min_align;
11241 return klass->marshal_info->native_size;
11245 * mono_type_native_stack_size:
11246 * @t: the type to return the size it uses on the stack
11248 * Returns: the number of bytes required to hold an instance of this
11249 * type on the native stack
11252 mono_type_native_stack_size (MonoType *t, guint32 *align)
11256 g_assert (t != NULL);
11262 *align = sizeof (gpointer);
11263 return sizeof (gpointer);
11267 case MONO_TYPE_BOOLEAN:
11268 case MONO_TYPE_CHAR:
11279 case MONO_TYPE_STRING:
11280 case MONO_TYPE_OBJECT:
11281 case MONO_TYPE_CLASS:
11282 case MONO_TYPE_SZARRAY:
11283 case MONO_TYPE_PTR:
11284 case MONO_TYPE_FNPTR:
11285 case MONO_TYPE_ARRAY:
11286 *align = sizeof (gpointer);
11287 return sizeof (gpointer);
11292 *align = MONO_ABI_ALIGNOF (double);
11296 *align = MONO_ABI_ALIGNOF (gint64);
11298 case MONO_TYPE_GENERICINST:
11299 if (!mono_type_generic_inst_is_valuetype (t)) {
11300 *align = sizeof (gpointer);
11301 return sizeof (gpointer);
11304 case MONO_TYPE_TYPEDBYREF:
11305 case MONO_TYPE_VALUETYPE: {
11307 MonoClass *klass = mono_class_from_mono_type (t);
11309 if (klass->enumtype)
11310 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11312 size = mono_class_native_size (klass, align);
11313 *align = *align + 3;
11323 g_error ("type 0x%02x unknown", t->type);
11329 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11330 gboolean as_field, gboolean unicode)
11332 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11335 switch (native_type) {
11336 case MONO_NATIVE_BOOLEAN:
11339 case MONO_NATIVE_I1:
11340 case MONO_NATIVE_U1:
11343 case MONO_NATIVE_I2:
11344 case MONO_NATIVE_U2:
11345 case MONO_NATIVE_VARIANTBOOL:
11348 case MONO_NATIVE_I4:
11349 case MONO_NATIVE_U4:
11350 case MONO_NATIVE_ERROR:
11353 case MONO_NATIVE_I8:
11354 case MONO_NATIVE_U8:
11355 *align = MONO_ABI_ALIGNOF (gint64);
11357 case MONO_NATIVE_R4:
11360 case MONO_NATIVE_R8:
11361 *align = MONO_ABI_ALIGNOF (double);
11363 case MONO_NATIVE_INT:
11364 case MONO_NATIVE_UINT:
11365 case MONO_NATIVE_LPSTR:
11366 case MONO_NATIVE_LPWSTR:
11367 case MONO_NATIVE_LPTSTR:
11368 case MONO_NATIVE_BSTR:
11369 case MONO_NATIVE_ANSIBSTR:
11370 case MONO_NATIVE_TBSTR:
11371 case MONO_NATIVE_LPARRAY:
11372 case MONO_NATIVE_SAFEARRAY:
11373 case MONO_NATIVE_IUNKNOWN:
11374 case MONO_NATIVE_IDISPATCH:
11375 case MONO_NATIVE_INTERFACE:
11376 case MONO_NATIVE_ASANY:
11377 case MONO_NATIVE_FUNC:
11378 case MONO_NATIVE_LPSTRUCT:
11379 *align = MONO_ABI_ALIGNOF (gpointer);
11380 return sizeof (gpointer);
11381 case MONO_NATIVE_STRUCT:
11382 klass = mono_class_from_mono_type (type);
11383 if (klass == mono_defaults.object_class &&
11384 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11388 return mono_class_native_size (klass, align);
11389 case MONO_NATIVE_BYVALTSTR: {
11390 int esize = unicode ? 2: 1;
11393 return mspec->data.array_data.num_elem * esize;
11395 case MONO_NATIVE_BYVALARRAY: {
11396 // FIXME: Have to consider ArraySubType
11398 klass = mono_class_from_mono_type (type);
11399 if (klass->element_class == mono_defaults.char_class) {
11400 esize = unicode ? 2 : 1;
11403 esize = mono_class_native_size (klass->element_class, align);
11406 return mspec->data.array_data.num_elem * esize;
11408 case MONO_NATIVE_CUSTOM:
11409 *align = sizeof (gpointer);
11410 return sizeof (gpointer);
11412 case MONO_NATIVE_CURRENCY:
11413 case MONO_NATIVE_VBBYREFSTR:
11415 g_error ("native type %02x not implemented", native_type);
11418 g_assert_not_reached ();
11422 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11424 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11433 t = &o->vtable->klass->byval_arg;
11437 case MONO_TYPE_PTR:
11440 case MONO_TYPE_BOOLEAN:
11443 case MONO_TYPE_CHAR:
11448 return mono_object_unbox (o);
11450 case MONO_TYPE_STRING:
11451 switch (string_encoding) {
11452 case MONO_NATIVE_LPWSTR:
11453 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11455 case MONO_NATIVE_LPSTR:
11456 return mono_string_to_lpstr ((MonoString*)o);
11459 g_warning ("marshaling conversion %d not implemented", string_encoding);
11460 g_assert_not_reached ();
11463 case MONO_TYPE_CLASS:
11464 case MONO_TYPE_VALUETYPE: {
11465 MonoMethod *method;
11468 MonoBoolean delete_old = FALSE;
11470 klass = t->data.klass;
11472 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11475 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11476 klass->blittable || klass->enumtype))
11477 return mono_object_unbox (o);
11479 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11480 if (!mono_error_ok (&error)) {
11481 mono_error_set_pending_exception (&error);
11485 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11486 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11490 pa [2] = &delete_old;
11492 mono_runtime_invoke_checked (method, NULL, pa, &error);
11493 if (!mono_error_ok (&error)) {
11494 mono_error_set_pending_exception (&error);
11504 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11508 /* This is a JIT icall, it sets the pending exception */
11510 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11519 t = &o->vtable->klass->byval_arg;
11521 case MONO_TYPE_STRING:
11522 switch (string_encoding) {
11523 case MONO_NATIVE_LPWSTR:
11524 case MONO_NATIVE_LPSTR:
11525 mono_marshal_free (ptr);
11528 g_warning ("marshaling conversion %d not implemented", string_encoding);
11529 g_assert_not_reached ();
11532 case MONO_TYPE_CLASS:
11533 case MONO_TYPE_VALUETYPE: {
11534 klass = t->data.klass;
11536 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11537 klass->blittable || klass->enumtype))
11540 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11541 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11547 mono_runtime_invoke_checked (method, NULL, pa, &error);
11548 if (!mono_error_ok (&error)) {
11549 mono_error_set_pending_exception (&error);
11554 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11555 mono_struct_delete_old (klass, (char *)ptr);
11558 mono_marshal_free (ptr);
11567 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11569 MonoMethodSignature *sig, *csig;
11570 MonoMethodBuilder *mb;
11575 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11576 mb->method->slot = -1;
11578 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11579 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11581 sig = mono_method_signature (method);
11582 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11583 csig->generic_param_count = 0;
11585 #ifndef DISABLE_JIT
11586 mono_mb_emit_ldarg (mb, 0);
11587 for (i = 0; i < csig->param_count; i++)
11588 mono_mb_emit_ldarg (mb, i + 1);
11589 mono_mb_emit_managed_call (mb, method, NULL);
11590 mono_mb_emit_byte (mb, CEE_RET);
11592 /* We can corlib internal methods */
11593 mb->skip_visibility = TRUE;
11595 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11596 info->d.generic_array_helper.method = method;
11597 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11605 * The mono_win32_compat_* functions are implementations of inline
11606 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11607 * although not exported by kernel32.
11609 * We map the appropiate kernel32 entries to these functions using
11610 * dllmaps declared in the global etc/mono/config.
11614 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11616 if (!dest || !source)
11619 memcpy (dest, source, length);
11623 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11625 memset (dest, fill, length);
11629 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11631 if (!dest || !source)
11634 memmove (dest, source, length);
11638 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11640 memset (dest, 0, length);
11644 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11649 for (i = 0; i < len; ++i)
11653 g_assert (i < len);
11656 while (byte && !(byte & 1))
11658 g_assert (byte == 1);
11661 *bitmask = buf [i];
11665 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11667 MonoMethodBuilder *mb;
11668 MonoMethodSignature *sig, *csig;
11669 MonoExceptionClause *clause;
11674 int i, param_count, sig_size, pos_leave;
11678 // FIXME: we need to store the exception into a MonoHandle
11679 g_assert (!mono_threads_is_coop_enabled ());
11681 klass = method->klass;
11682 image = method->klass->image;
11684 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11686 if ((res = mono_marshal_find_in_cache (cache, method)))
11689 sig = mono_method_signature (method);
11690 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11692 /* add "this" and exception param */
11693 param_count = sig->param_count + sig->hasthis + 1;
11695 /* dup & extend signature */
11696 csig = mono_metadata_signature_alloc (image, param_count);
11697 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11698 memcpy (csig, sig, sig_size);
11699 csig->param_count = param_count;
11702 csig->call_convention = MONO_CALL_DEFAULT;
11704 if (sig->hasthis) {
11706 csig->params [0] = &klass->byval_arg;
11707 /* move params up by one */
11708 for (i = 0; i < sig->param_count; i++)
11709 csig->params [i + 1] = sig->params [i];
11712 /* setup exception param as byref+[out] */
11713 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11714 &mono_defaults.exception_class->byval_arg);
11715 csig->params [param_count - 1]->byref = 1;
11716 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11718 /* convert struct return to object */
11719 if (MONO_TYPE_ISSTRUCT (sig->ret))
11720 csig->ret = &mono_defaults.object_class->byval_arg;
11722 #ifndef DISABLE_JIT
11723 /* local 0 (temp for exception object) */
11724 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11726 /* local 1 (temp for result) */
11727 if (!MONO_TYPE_IS_VOID (sig->ret))
11728 mono_mb_add_local (mb, sig->ret);
11730 /* clear exception arg */
11731 mono_mb_emit_ldarg (mb, param_count - 1);
11732 mono_mb_emit_byte (mb, CEE_LDNULL);
11733 mono_mb_emit_byte (mb, CEE_STIND_REF);
11736 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11737 clause->try_offset = mono_mb_get_label (mb);
11739 /* push method's args */
11740 for (i = 0; i < param_count - 1; i++) {
11744 mono_mb_emit_ldarg (mb, i);
11746 /* get the byval type of the param */
11747 klass = mono_class_from_mono_type (csig->params [i]);
11748 type = &klass->byval_arg;
11750 /* unbox struct args */
11751 if (MONO_TYPE_ISSTRUCT (type)) {
11752 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11754 /* byref args & and the "this" arg must remain a ptr.
11755 Otherwise make a copy of the value type */
11756 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11757 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11759 csig->params [i] = &mono_defaults.object_class->byval_arg;
11764 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11765 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11767 mono_mb_emit_op (mb, CEE_CALL, method);
11769 /* save result at local 1 */
11770 if (!MONO_TYPE_IS_VOID (sig->ret))
11771 mono_mb_emit_stloc (mb, 1);
11773 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11776 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11777 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11778 clause->data.catch_class = mono_defaults.object_class;
11780 clause->handler_offset = mono_mb_get_label (mb);
11782 /* store exception at local 0 */
11783 mono_mb_emit_stloc (mb, 0);
11784 mono_mb_emit_ldarg (mb, param_count - 1);
11785 mono_mb_emit_ldloc (mb, 0);
11786 mono_mb_emit_byte (mb, CEE_STIND_REF);
11787 mono_mb_emit_branch (mb, CEE_LEAVE);
11789 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11791 mono_mb_set_clauses (mb, 1, clause);
11793 mono_mb_patch_branch (mb, pos_leave);
11796 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11797 mono_mb_emit_ldloc (mb, 1);
11799 /* box the return value */
11800 if (MONO_TYPE_ISSTRUCT (sig->ret))
11801 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11804 mono_mb_emit_byte (mb, CEE_RET);
11807 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11814 * mono_marshal_free_dynamic_wrappers:
11816 * Free wrappers of the dynamic method METHOD.
11819 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11821 MonoImage *image = method->klass->image;
11823 g_assert (method_is_dynamic (method));
11825 /* This could be called during shutdown */
11826 if (marshal_mutex_initialized)
11827 mono_marshal_lock ();
11829 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11830 * they could be shared with other methods ?
11832 if (image->wrapper_caches.runtime_invoke_direct_cache)
11833 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11834 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11835 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11836 // FIXME: Need to clear the caches in other images as well
11837 if (image->delegate_bound_static_invoke_cache)
11838 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11840 if (marshal_mutex_initialized)
11841 mono_marshal_unlock ();
11845 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11847 g_assert (ftnptr_eh_callback);
11848 ftnptr_eh_callback (gchandle);
11852 ftnptr_eh_callback_default (guint32 gchandle)
11854 MonoException *exc;
11855 gpointer stackdata;
11857 g_assert (gchandle >= 0);
11859 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11861 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11863 mono_gchandle_free (gchandle);
11865 mono_raise_exception (exc);
11869 * mono_install_ftnptr_eh_callback:
11871 * Install a callback that should be called when there is a managed exception
11872 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11873 * managed exception to a native exception, to properly unwind the native
11874 * stack; this native exception will then be converted back to a managed
11875 * exception in their managed-to-native wrapper.
11878 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11880 ftnptr_eh_callback = callback;