2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-error-internals.h>
53 /* #define DEBUG_RUNTIME_CODE */
55 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
59 #include "mono/cil/opcode.def"
65 * This mutex protects the various marshalling related caches in MonoImage
66 * and a few other data structures static to this file.
68 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
69 * runtime locking latice. Which means it can take simple locks suck as the image lock.
71 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
72 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
73 static mono_mutex_t marshal_mutex;
74 static gboolean marshal_mutex_initialized;
76 static MonoNativeTlsKey last_error_tls_id;
78 static MonoNativeTlsKey load_type_info_tls_id;
80 static gboolean use_aot_wrappers;
82 static void ftnptr_eh_callback_default (guint32 gchandle);
84 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
87 delegate_hash_table_add (MonoDelegate *d);
90 delegate_hash_table_remove (MonoDelegate *d);
93 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
96 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
99 mono_struct_delete_old (MonoClass *klass, char *ptr);
102 mono_marshal_string_to_utf16 (MonoString *s);
105 mono_marshal_string_to_utf16_copy (MonoString *s);
108 mono_string_to_lpstr (MonoString *string_obj);
110 static MonoStringBuilder *
111 mono_string_utf8_to_builder2 (char *text);
113 static MonoStringBuilder *
114 mono_string_utf16_to_builder2 (gunichar2 *text);
117 mono_string_new_len_wrapper (const char *text, guint length);
120 mono_string_from_byvalstr (const char *data, int len);
123 mono_string_from_byvalwstr (gunichar2 *data, int len);
126 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
129 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
132 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
135 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
137 static MonoAsyncResult *
138 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
141 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_marshal_set_last_error_windows (int error);
147 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
149 static void init_safe_handle (void);
152 ves_icall_marshal_alloc (gulong size);
155 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
158 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
161 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
164 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
167 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
170 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
173 mono_delegate_to_ftnptr (MonoDelegate *delegate);
176 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
179 mono_array_to_savearray (MonoArray *array);
182 mono_array_to_lparray (MonoArray *array);
185 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
188 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
191 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
194 mono_array_to_savearray (MonoArray *array);
197 mono_array_to_lparray (MonoArray *array);
200 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
203 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
205 /* Lazy class loading functions */
206 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
207 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
208 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
211 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
212 static MonoMethod *sh_dangerous_add_ref;
213 static MonoMethod *sh_dangerous_release;
218 sh_dangerous_add_ref = mono_class_get_method_from_name (
219 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
220 sh_dangerous_release = mono_class_get_method_from_name (
221 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
225 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
227 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
229 mono_register_jit_icall (func, name, sig, no_wrapper);
233 mono_signature_no_pinvoke (MonoMethod *method)
235 MonoMethodSignature *sig = mono_method_signature (method);
237 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
238 sig->pinvoke = FALSE;
245 mono_marshal_init_tls (void)
247 mono_native_tls_alloc (&last_error_tls_id, NULL);
248 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
252 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
255 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
256 mono_error_set_pending_exception (&error);
261 ves_icall_mono_string_from_utf16 (gunichar2 *data)
264 MonoString *result = mono_string_from_utf16_checked (data, &error);
265 mono_error_set_pending_exception (&error);
270 mono_marshal_init (void)
272 static gboolean module_initialized = FALSE;
274 if (!module_initialized) {
275 module_initialized = TRUE;
276 mono_os_mutex_init_recursive (&marshal_mutex);
277 marshal_mutex_initialized = TRUE;
279 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
280 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
281 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
282 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
283 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
284 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
285 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
286 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
287 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
288 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
289 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
290 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
291 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
292 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
293 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
294 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
295 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
296 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
297 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
298 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
299 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
300 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
301 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
302 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
303 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
304 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
305 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
306 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
307 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
308 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
309 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
310 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
311 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
312 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
313 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
314 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
315 register_icall (g_free, "g_free", "void ptr", FALSE);
316 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
317 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
318 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
319 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
320 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
321 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
322 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
323 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
324 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
325 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
326 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
327 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
328 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
329 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
330 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
332 mono_cominterop_init ();
333 mono_remoting_init ();
338 mono_marshal_cleanup (void)
340 mono_cominterop_cleanup ();
342 mono_native_tls_free (load_type_info_tls_id);
343 mono_native_tls_free (last_error_tls_id);
344 mono_os_mutex_destroy (&marshal_mutex);
345 marshal_mutex_initialized = FALSE;
349 mono_marshal_lock_internal (void)
351 mono_marshal_lock ();
355 mono_marshal_unlock_internal (void)
357 mono_marshal_unlock ();
360 /* This is a JIT icall, it sets the pending exception and return NULL on error */
362 mono_delegate_to_ftnptr (MonoDelegate *delegate)
365 MonoMethod *method, *wrapper;
367 uint32_t target_handle = 0;
372 if (delegate->delegate_trampoline)
373 return delegate->delegate_trampoline;
375 klass = ((MonoObject *)delegate)->vtable->klass;
376 g_assert (klass->delegate);
378 method = delegate->method;
379 if (delegate->method_is_virtual)
380 method = mono_object_get_virtual_method (delegate->target, method);
382 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
383 const char *exc_class, *exc_arg;
386 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
388 g_assert (exc_class);
389 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
395 if (delegate->target) {
396 /* Produce a location which can be embedded in JITted code */
397 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
400 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
402 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
406 // Add the delegate to the delegate hash table
407 delegate_hash_table_add (delegate);
409 /* when the object is collected, collect the dynamic method, too */
410 mono_object_register_finalizer ((MonoObject*)delegate);
412 return delegate->delegate_trampoline;
415 mono_gchandle_free (target_handle);
416 mono_error_set_pending_exception (&error);
421 * this hash table maps from a delegate trampoline object to a weak reference
422 * of the delegate. As an optimizations with a non-moving GC we store the
423 * object pointer itself, otherwise we use a GC handle.
425 static GHashTable *delegate_hash_table;
428 delegate_hash_table_new (void) {
429 return g_hash_table_new (NULL, NULL);
433 delegate_hash_table_remove (MonoDelegate *d)
435 guint32 gchandle = 0;
437 mono_marshal_lock ();
438 if (delegate_hash_table == NULL)
439 delegate_hash_table = delegate_hash_table_new ();
440 if (mono_gc_is_moving ())
441 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
442 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
443 mono_marshal_unlock ();
444 if (gchandle && mono_gc_is_moving ())
445 mono_gchandle_free (gchandle);
449 delegate_hash_table_add (MonoDelegate *d)
452 guint32 old_gchandle;
454 mono_marshal_lock ();
455 if (delegate_hash_table == NULL)
456 delegate_hash_table = delegate_hash_table_new ();
457 if (mono_gc_is_moving ()) {
458 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
459 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
460 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
462 mono_gchandle_free (old_gchandle);
464 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
466 mono_marshal_unlock ();
470 * mono_marshal_use_aot_wrappers:
472 * Instructs this module to use AOT compatible wrappers.
475 mono_marshal_use_aot_wrappers (gboolean use)
477 use_aot_wrappers = use;
481 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
484 MonoCustomAttrInfo *cinfo;
485 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
487 /* The attribute is only available in Net 2.0 */
488 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
490 * The pinvoke attributes are stored in a real custom attribute so we have to
493 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
494 if (!mono_error_ok (&error)) {
495 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
496 mono_error_cleanup (&error);
498 if (cinfo && !mono_runtime_get_no_exec ()) {
499 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
501 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
503 if (!mono_error_ok (&error)) {
504 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
505 mono_error_cleanup (&error);
509 mono_custom_attrs_free (cinfo);
514 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
516 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
525 mono_marshal_lock ();
526 if (delegate_hash_table == NULL)
527 delegate_hash_table = delegate_hash_table_new ();
529 if (mono_gc_is_moving ()) {
530 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
531 mono_marshal_unlock ();
533 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
537 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
538 mono_marshal_unlock ();
541 /* This is a native function, so construct a delegate for it */
542 MonoMethodSignature *sig;
544 MonoMarshalSpec **mspecs;
545 MonoMethod *invoke = mono_get_delegate_invoke (klass);
546 MonoMethodPInvoke piinfo;
547 MonoObject *this_obj;
550 if (use_aot_wrappers) {
551 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
552 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
553 if (!is_ok (&error)) {
554 mono_error_set_pending_exception (&error);
558 memset (&piinfo, 0, sizeof (piinfo));
559 parse_unmanaged_function_pointer_attr (klass, &piinfo);
561 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
562 mono_method_get_marshal_info (invoke, mspecs);
563 /* Freed below so don't alloc from mempool */
564 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
567 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
570 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
572 mono_metadata_free_marshal_spec (mspecs [i]);
577 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
578 if (!mono_error_ok (&error)) {
579 mono_error_set_pending_exception (&error);
582 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
583 if (mono_error_set_pending_exception (&error))
585 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
586 if (mono_error_set_pending_exception (&error))
590 if (d->object.vtable->domain != mono_domain_get ()) {
591 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
599 mono_delegate_free_ftnptr (MonoDelegate *delegate)
604 delegate_hash_table_remove (delegate);
606 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
608 if (!delegate->target) {
609 /* The wrapper method is shared between delegates -> no need to free it */
618 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
621 method = mono_jit_info_get_method (ji);
622 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
624 /*the target gchandle is the first entry after size and the wrapper itself.*/
625 gchandle = GPOINTER_TO_UINT (method_data [2]);
628 mono_gchandle_free (gchandle);
630 mono_runtime_free_method (mono_object_domain (delegate), method);
634 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
636 mono_string_from_byvalstr (const char *data, int max_len)
639 MonoDomain *domain = mono_domain_get ();
645 while (len < max_len - 1 && data [len])
648 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
649 mono_error_set_pending_exception (&error);
653 /* This is a JIT icall, it sets the pending exception and return NULL on error */
655 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
658 MonoString *res = NULL;
659 MonoDomain *domain = mono_domain_get ();
665 while (data [len]) len++;
667 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
668 if (!mono_error_ok (&error)) {
669 mono_error_set_pending_exception (&error);
676 mono_array_to_savearray (MonoArray *array)
681 g_assert_not_reached ();
686 mono_array_to_lparray (MonoArray *array)
689 gpointer *nativeArray = NULL;
690 int nativeArraySize = 0;
700 klass = array->obj.vtable->klass;
702 switch (klass->element_class->byval_arg.type) {
704 g_assert_not_reached ();
706 case MONO_TYPE_CLASS:
707 nativeArraySize = array->max_length;
708 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
709 for(i = 0; i < nativeArraySize; ++i)
710 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
713 case MONO_TYPE_BOOLEAN:
726 case MONO_TYPE_VALUETYPE:
730 case MONO_TYPE_GENERICINST:
731 case MONO_TYPE_OBJECT:
732 case MONO_TYPE_ARRAY:
733 case MONO_TYPE_SZARRAY:
734 case MONO_TYPE_STRING:
736 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
737 g_assert_not_reached ();
740 return array->vector;
744 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
755 klass = array->obj.vtable->klass;
757 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
758 for(i = 0; i < array->max_length; ++i)
759 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
766 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
768 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
770 if (elclass == mono_defaults.byte_class) {
771 GError *error = NULL;
775 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
778 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
782 g_error_free (error);
785 g_assert_not_reached ();
789 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
791 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
794 /* This is a JIT icall, it sets the pending exception and returns on error */
796 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
798 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
800 if (elclass == mono_defaults.byte_class) {
802 GError *error = NULL;
804 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
806 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
807 g_error_free (error);
811 memcpy (native_arr, as, MIN (strlen (as), elnum));
814 g_assert_not_reached ();
819 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
821 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
824 static MonoStringBuilder *
825 mono_string_builder_new (int starting_string_length)
827 static MonoClass *string_builder_class;
828 static MonoMethod *sb_ctor;
829 static void *args [1];
832 int initial_len = starting_string_length;
838 MonoMethodDesc *desc;
841 string_builder_class = mono_class_get_string_builder_class ();
842 g_assert (string_builder_class);
843 desc = mono_method_desc_new (":.ctor(int)", FALSE);
844 m = mono_method_desc_search_in_class (desc, string_builder_class);
846 mono_method_desc_free (desc);
847 mono_memory_barrier ();
851 // We make a new array in the _to_builder function, so this
852 // array will always be garbage collected.
853 args [0] = &initial_len;
855 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
856 mono_error_assert_ok (&error);
859 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
860 g_assert (exc == NULL);
861 mono_error_assert_ok (&error);
863 g_assert (sb->chunkChars->max_length >= initial_len);
869 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
871 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
872 gunichar2 *charSrc = (gunichar2 *)text;
873 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
875 sb->chunkLength = string_len;
881 mono_string_utf16_to_builder2 (gunichar2 *text)
887 for (len = 0; text [len] != 0; ++len);
889 MonoStringBuilder *sb = mono_string_builder_new (len);
890 mono_string_utf16_to_builder (sb, text);
896 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
901 int len = strlen (text);
902 if (len > mono_string_builder_capacity (sb))
903 len = mono_string_builder_capacity (sb);
905 GError *error = NULL;
907 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
910 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
911 mono_string_utf16_to_builder_copy (sb, ut, copied);
913 g_error_free (error);
919 mono_string_utf8_to_builder2 (char *text)
924 int len = strlen (text);
925 MonoStringBuilder *sb = mono_string_builder_new (len);
926 mono_string_utf8_to_builder (sb, text);
933 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
939 for (len = 0; text [len] != 0; ++len);
941 if (len > mono_string_builder_capacity (sb))
942 len = mono_string_builder_capacity (sb);
944 mono_string_utf16_to_builder_copy (sb, text, len);
948 * mono_string_builder_to_utf8:
949 * @sb: the string builder
951 * Converts to utf8 the contents of the MonoStringBuilder.
953 * Returns: a utf8 string with the contents of the StringBuilder.
955 * The return value must be released with g_free.
957 * This is a JIT icall, it sets the pending exception and returns NULL on error.
960 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
963 GError *gerror = NULL;
968 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
970 guint str_len = mono_string_builder_string_length (sb);
972 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
975 g_error_free (gerror);
977 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
980 guint len = mono_string_builder_capacity (sb) + 1;
981 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
982 if (!mono_error_ok (&error)) {
985 mono_error_set_pending_exception (&error);
989 g_assert (str_len < len);
990 memcpy (res, tmp, str_len * sizeof (gchar));
1000 * mono_string_builder_to_utf16:
1001 * @sb: the string builder
1003 * Converts to utf16 the contents of the MonoStringBuilder.
1005 * Returns: a utf16 string with the contents of the StringBuilder.
1007 * The return value must not be freed.
1008 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1011 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1018 g_assert (sb->chunkChars);
1020 guint len = mono_string_builder_capacity (sb);
1025 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1026 if (!mono_error_ok (&error)) {
1027 mono_error_set_pending_exception (&error);
1036 MonoStringBuilder* chunk = sb;
1038 if (chunk->chunkLength > 0) {
1039 // Check that we will not overrun our boundaries.
1040 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1042 if (chunk->chunkLength <= len) {
1043 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1045 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1048 len -= chunk->chunkLength;
1050 chunk = chunk->chunkPrevious;
1051 } while (chunk != NULL);
1056 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1058 mono_string_to_lpstr (MonoString *s)
1063 GError *error = NULL;
1069 as = CoTaskMemAlloc (1);
1074 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1076 MonoException *exc = mono_get_exception_argument ("string", error->message);
1077 g_error_free (error);
1078 mono_set_pending_exception (exc);
1081 as = CoTaskMemAlloc (len + 1);
1082 memcpy (as, tmp, len + 1);
1087 return mono_string_to_utf8 (s);
1092 mono_string_to_ansibstr (MonoString *string_obj)
1094 g_error ("UnmanagedMarshal.BStr is not implemented.");
1099 * mono_string_to_byvalstr:
1100 * @dst: Where to store the null-terminated utf8 decoded string.
1101 * @src: the MonoString to copy.
1102 * @size: the maximum number of bytes to copy.
1104 * Copies the MonoString pointed to by @src as a utf8 string
1105 * into @dst, it copies at most @size bytes into the destination.
1108 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1113 g_assert (dst != NULL);
1114 g_assert (size > 0);
1116 memset (dst, 0, size);
1120 s = mono_string_to_utf8 (src);
1121 len = MIN (size, strlen (s));
1124 memcpy (dst, s, len);
1129 * mono_string_to_byvalwstr:
1130 * @dst: Where to store the null-terminated utf16 decoded string.
1131 * @src: the MonoString to copy.
1132 * @size: the maximum number of bytes to copy.
1134 * Copies the MonoString pointed to by @src as a utf16 string into
1135 * @dst, it copies at most @size bytes into the destination (including
1136 * a terminating 16-bit zero terminator).
1139 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1143 g_assert (dst != NULL);
1144 g_assert (size > 1);
1147 memset (dst, 0, size * 2);
1151 len = MIN (size, (mono_string_length (src)));
1152 memcpy (dst, mono_string_chars (src), size * 2);
1153 if (size <= mono_string_length (src))
1155 *((gunichar2 *) dst + len) = 0;
1158 /* this is an icall, it sets the pending exception and returns NULL on error */
1160 mono_string_new_len_wrapper (const char *text, guint length)
1163 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1164 mono_error_set_pending_exception (&error);
1171 * mono_mb_emit_exception_marshal_directive:
1173 * This function assumes ownership of MSG, which should be malloc-ed.
1176 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1181 s = mono_image_strdup (mb->method->klass->image, msg);
1186 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1189 #endif /* !DISABLE_JIT */
1192 mono_type_to_ldind (MonoType *type)
1198 switch (type->type) {
1200 return CEE_LDIND_I1;
1202 case MONO_TYPE_BOOLEAN:
1203 return CEE_LDIND_U1;
1205 return CEE_LDIND_I2;
1207 case MONO_TYPE_CHAR:
1208 return CEE_LDIND_U2;
1210 return CEE_LDIND_I4;
1212 return CEE_LDIND_U4;
1216 case MONO_TYPE_FNPTR:
1218 case MONO_TYPE_CLASS:
1219 case MONO_TYPE_STRING:
1220 case MONO_TYPE_OBJECT:
1221 case MONO_TYPE_SZARRAY:
1222 case MONO_TYPE_ARRAY:
1223 return CEE_LDIND_REF;
1226 return CEE_LDIND_I8;
1228 return CEE_LDIND_R4;
1230 return CEE_LDIND_R8;
1231 case MONO_TYPE_VALUETYPE:
1232 if (type->data.klass->enumtype) {
1233 type = mono_class_enum_basetype (type->data.klass);
1237 case MONO_TYPE_TYPEDBYREF:
1239 case MONO_TYPE_GENERICINST:
1240 type = &type->data.generic_class->container_class->byval_arg;
1243 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1249 mono_type_to_stind (MonoType *type)
1252 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1256 switch (type->type) {
1259 case MONO_TYPE_BOOLEAN:
1260 return CEE_STIND_I1;
1263 case MONO_TYPE_CHAR:
1264 return CEE_STIND_I2;
1267 return CEE_STIND_I4;
1271 case MONO_TYPE_FNPTR:
1273 case MONO_TYPE_CLASS:
1274 case MONO_TYPE_STRING:
1275 case MONO_TYPE_OBJECT:
1276 case MONO_TYPE_SZARRAY:
1277 case MONO_TYPE_ARRAY:
1278 return CEE_STIND_REF;
1281 return CEE_STIND_I8;
1283 return CEE_STIND_R4;
1285 return CEE_STIND_R8;
1286 case MONO_TYPE_VALUETYPE:
1287 if (type->data.klass->enumtype) {
1288 type = mono_class_enum_basetype (type->data.klass);
1292 case MONO_TYPE_TYPEDBYREF:
1294 case MONO_TYPE_GENERICINST:
1295 type = &type->data.generic_class->container_class->byval_arg;
1298 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1306 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1309 case MONO_MARSHAL_CONV_BOOL_I4:
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_ldloc (mb, 0);
1312 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1313 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1314 mono_mb_emit_byte (mb, 3);
1315 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1316 mono_mb_emit_byte (mb, CEE_BR_S);
1317 mono_mb_emit_byte (mb, 1);
1318 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1319 mono_mb_emit_byte (mb, CEE_STIND_I1);
1321 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1325 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1326 mono_mb_emit_byte (mb, 3);
1327 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1328 mono_mb_emit_byte (mb, CEE_BR_S);
1329 mono_mb_emit_byte (mb, 1);
1330 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1331 mono_mb_emit_byte (mb, CEE_STIND_I1);
1333 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1334 MonoClass *eklass = NULL;
1337 if (type->type == MONO_TYPE_SZARRAY) {
1338 eklass = type->data.klass;
1340 g_assert_not_reached ();
1343 esize = mono_class_native_size (eklass, NULL);
1345 /* create a new array */
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1348 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1349 mono_mb_emit_byte (mb, CEE_STIND_REF);
1351 if (eklass->blittable) {
1352 /* copy the elements */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_byte (mb, CEE_LDIND_I);
1355 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1356 mono_mb_emit_byte (mb, CEE_ADD);
1357 mono_mb_emit_ldloc (mb, 0);
1358 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1359 mono_mb_emit_byte (mb, CEE_PREFIX1);
1360 mono_mb_emit_byte (mb, CEE_CPBLK);
1363 int array_var, src_var, dst_var, index_var;
1364 guint32 label2, label3;
1366 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1367 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1368 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1371 mono_mb_emit_ldloc (mb, 1);
1372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1373 mono_mb_emit_stloc (mb, array_var);
1375 /* save the old src pointer */
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_stloc (mb, src_var);
1378 /* save the old dst pointer */
1379 mono_mb_emit_ldloc (mb, 1);
1380 mono_mb_emit_stloc (mb, dst_var);
1382 /* Emit marshalling loop */
1383 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1384 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1385 mono_mb_emit_stloc (mb, index_var);
1388 label2 = mono_mb_get_label (mb);
1389 mono_mb_emit_ldloc (mb, index_var);
1390 mono_mb_emit_ldloc (mb, array_var);
1391 mono_mb_emit_byte (mb, CEE_LDLEN);
1392 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1394 /* src is already set */
1397 mono_mb_emit_ldloc (mb, array_var);
1398 mono_mb_emit_ldloc (mb, index_var);
1399 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1400 mono_mb_emit_stloc (mb, 1);
1402 /* Do the conversion */
1403 emit_struct_conv (mb, eklass, TRUE);
1406 mono_mb_emit_add_to_local (mb, index_var, 1);
1408 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1410 mono_mb_patch_branch (mb, label3);
1412 /* restore the old src pointer */
1413 mono_mb_emit_ldloc (mb, src_var);
1414 mono_mb_emit_stloc (mb, 0);
1415 /* restore the old dst pointer */
1416 mono_mb_emit_ldloc (mb, dst_var);
1417 mono_mb_emit_stloc (mb, 1);
1421 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1422 MonoClass *eclass = mono_defaults.char_class;
1424 /* create a new array */
1425 mono_mb_emit_ldloc (mb, 1);
1426 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1427 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1428 mono_mb_emit_byte (mb, CEE_STIND_REF);
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1434 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1437 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1438 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1439 mono_mb_emit_ldloc (mb, 1);
1440 mono_mb_emit_ldloc (mb, 0);
1441 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1442 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1444 mono_mb_emit_ldloc (mb, 1);
1445 mono_mb_emit_ldloc (mb, 0);
1446 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1448 mono_mb_emit_byte (mb, CEE_STIND_REF);
1450 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1451 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1452 mono_mb_emit_ldloc (mb, 1);
1453 mono_mb_emit_ldloc (mb, 0);
1454 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1455 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1461 mono_mb_emit_byte (mb, CEE_STIND_REF);
1463 case MONO_MARSHAL_CONV_STR_LPTSTR:
1464 mono_mb_emit_ldloc (mb, 1);
1465 mono_mb_emit_ldloc (mb, 0);
1466 mono_mb_emit_byte (mb, CEE_LDIND_I);
1468 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1470 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1472 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 case MONO_MARSHAL_CONV_STR_LPSTR:
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_byte (mb, CEE_LDIND_I);
1478 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1479 mono_mb_emit_byte (mb, CEE_STIND_REF);
1481 case MONO_MARSHAL_CONV_STR_LPWSTR:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1485 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1486 mono_mb_emit_byte (mb, CEE_STIND_REF);
1488 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1489 MonoClass *klass = mono_class_from_mono_type (type);
1490 int src_var, dst_var;
1492 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1493 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1495 /* *dst = new object */
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1498 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1499 mono_mb_emit_byte (mb, CEE_STIND_REF);
1501 /* save the old src pointer */
1502 mono_mb_emit_ldloc (mb, 0);
1503 mono_mb_emit_stloc (mb, src_var);
1504 /* save the old dst pointer */
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_stloc (mb, dst_var);
1508 /* dst = pointer to newly created object data */
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_byte (mb, CEE_LDIND_I);
1511 mono_mb_emit_icon (mb, sizeof (MonoObject));
1512 mono_mb_emit_byte (mb, CEE_ADD);
1513 mono_mb_emit_stloc (mb, 1);
1515 emit_struct_conv (mb, klass, TRUE);
1517 /* restore the old src pointer */
1518 mono_mb_emit_ldloc (mb, src_var);
1519 mono_mb_emit_stloc (mb, 0);
1520 /* restore the old dst pointer */
1521 mono_mb_emit_ldloc (mb, dst_var);
1522 mono_mb_emit_stloc (mb, 1);
1525 case MONO_MARSHAL_CONV_DEL_FTN: {
1526 MonoClass *klass = mono_class_from_mono_type (type);
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1530 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_I);
1533 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1534 mono_mb_emit_byte (mb, CEE_STIND_REF);
1537 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1538 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1542 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1543 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1544 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1545 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1547 #endif /* DISABLE_COM */
1549 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1551 * Passing SafeHandles as ref does not allow the unmanaged code
1552 * to change the SafeHandle value. If the value is changed,
1553 * we should issue a diagnostic exception (NotSupportedException)
1554 * that informs the user that changes to handles in unmanaged code
1557 * Since we currently have no access to the original
1558 * SafeHandle that was used during the marshalling,
1559 * for now we just ignore this, and ignore/discard any
1560 * changes that might have happened to the handle.
1565 case MONO_MARSHAL_CONV_HANDLEREF: {
1567 * Passing HandleRefs in a struct that is ref()ed does not
1568 * copy the values back to the HandleRef
1573 case MONO_MARSHAL_CONV_STR_BSTR:
1574 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1575 case MONO_MARSHAL_CONV_STR_TBSTR:
1576 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1578 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1580 mono_mb_emit_exception_marshal_directive (mb, msg);
1587 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1590 if (!ind_store_type)
1591 ind_store_type = &dummy;
1592 *ind_store_type = CEE_STIND_I;
1594 case MONO_MARSHAL_CONV_STR_LPWSTR:
1595 return mono_marshal_string_to_utf16;
1596 case MONO_MARSHAL_CONV_LPWSTR_STR:
1597 *ind_store_type = CEE_STIND_REF;
1598 return ves_icall_mono_string_from_utf16;
1599 case MONO_MARSHAL_CONV_LPTSTR_STR:
1600 *ind_store_type = CEE_STIND_REF;
1601 return mono_string_new_wrapper;
1602 case MONO_MARSHAL_CONV_LPSTR_STR:
1603 *ind_store_type = CEE_STIND_REF;
1604 return mono_string_new_wrapper;
1605 case MONO_MARSHAL_CONV_STR_LPTSTR:
1607 return mono_marshal_string_to_utf16;
1609 return mono_string_to_lpstr;
1611 case MONO_MARSHAL_CONV_STR_LPSTR:
1612 return mono_string_to_lpstr;
1613 case MONO_MARSHAL_CONV_STR_BSTR:
1614 return mono_string_to_bstr;
1615 case MONO_MARSHAL_CONV_BSTR_STR:
1616 *ind_store_type = CEE_STIND_REF;
1617 return mono_string_from_bstr_icall;
1618 case MONO_MARSHAL_CONV_STR_TBSTR:
1619 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1620 return mono_string_to_ansibstr;
1621 case MONO_MARSHAL_CONV_SB_LPSTR:
1622 return mono_string_builder_to_utf8;
1623 case MONO_MARSHAL_CONV_SB_LPTSTR:
1625 return mono_string_builder_to_utf16;
1627 return mono_string_builder_to_utf8;
1629 case MONO_MARSHAL_CONV_SB_LPWSTR:
1630 return mono_string_builder_to_utf16;
1631 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1632 return mono_array_to_savearray;
1633 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1634 return mono_array_to_lparray;
1635 case MONO_MARSHAL_FREE_LPARRAY:
1636 return mono_free_lparray;
1637 case MONO_MARSHAL_CONV_DEL_FTN:
1638 return mono_delegate_to_ftnptr;
1639 case MONO_MARSHAL_CONV_FTN_DEL:
1640 *ind_store_type = CEE_STIND_REF;
1641 return mono_ftnptr_to_delegate;
1642 case MONO_MARSHAL_CONV_LPSTR_SB:
1643 *ind_store_type = CEE_STIND_REF;
1644 return mono_string_utf8_to_builder;
1645 case MONO_MARSHAL_CONV_LPTSTR_SB:
1646 *ind_store_type = CEE_STIND_REF;
1648 return mono_string_utf16_to_builder;
1650 return mono_string_utf8_to_builder;
1652 case MONO_MARSHAL_CONV_LPWSTR_SB:
1653 *ind_store_type = CEE_STIND_REF;
1654 return mono_string_utf16_to_builder;
1655 case MONO_MARSHAL_FREE_ARRAY:
1656 return mono_marshal_free_array;
1657 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1658 return mono_string_to_byvalstr;
1659 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1660 return mono_string_to_byvalwstr;
1662 g_assert_not_reached ();
1669 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1675 case MONO_MARSHAL_CONV_BOOL_I4:
1676 mono_mb_emit_ldloc (mb, 1);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1679 mono_mb_emit_byte (mb, CEE_STIND_I4);
1681 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1682 mono_mb_emit_ldloc (mb, 1);
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1685 mono_mb_emit_byte (mb, CEE_NEG);
1686 mono_mb_emit_byte (mb, CEE_STIND_I2);
1688 case MONO_MARSHAL_CONV_STR_LPWSTR:
1689 case MONO_MARSHAL_CONV_STR_LPSTR:
1690 case MONO_MARSHAL_CONV_STR_LPTSTR:
1691 case MONO_MARSHAL_CONV_STR_BSTR:
1692 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1693 case MONO_MARSHAL_CONV_STR_TBSTR: {
1696 /* free space if free == true */
1697 mono_mb_emit_ldloc (mb, 2);
1698 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_byte (mb, CEE_LDIND_I);
1701 mono_mb_emit_icall (mb, g_free);
1702 mono_mb_patch_short_branch (mb, pos);
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1707 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1708 mono_mb_emit_byte (mb, stind_op);
1711 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1712 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1713 case MONO_MARSHAL_CONV_DEL_FTN:
1714 mono_mb_emit_ldloc (mb, 1);
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1717 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1718 mono_mb_emit_byte (mb, stind_op);
1720 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1721 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1724 mono_mb_emit_ldloc (mb, 1); /* dst */
1725 mono_mb_emit_ldloc (mb, 0);
1726 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1727 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1728 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1731 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1732 MonoClass *eklass = NULL;
1735 if (type->type == MONO_TYPE_SZARRAY) {
1736 eklass = type->data.klass;
1738 g_assert_not_reached ();
1741 if (eklass->valuetype)
1742 esize = mono_class_native_size (eklass, NULL);
1744 esize = sizeof (gpointer);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1748 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1750 if (eklass->blittable) {
1751 mono_mb_emit_ldloc (mb, 1);
1752 mono_mb_emit_ldloc (mb, 0);
1753 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1754 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1755 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1756 mono_mb_emit_byte (mb, CEE_PREFIX1);
1757 mono_mb_emit_byte (mb, CEE_CPBLK);
1759 int array_var, src_var, dst_var, index_var;
1760 guint32 label2, label3;
1762 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1763 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1764 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1769 mono_mb_emit_stloc (mb, array_var);
1771 /* save the old src pointer */
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_stloc (mb, src_var);
1774 /* save the old dst pointer */
1775 mono_mb_emit_ldloc (mb, 1);
1776 mono_mb_emit_stloc (mb, dst_var);
1778 /* Emit marshalling loop */
1779 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1780 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1781 mono_mb_emit_stloc (mb, index_var);
1784 label2 = mono_mb_get_label (mb);
1785 mono_mb_emit_ldloc (mb, index_var);
1786 mono_mb_emit_ldloc (mb, array_var);
1787 mono_mb_emit_byte (mb, CEE_LDLEN);
1788 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1791 mono_mb_emit_ldloc (mb, array_var);
1792 mono_mb_emit_ldloc (mb, index_var);
1793 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1794 mono_mb_emit_stloc (mb, 0);
1796 /* dst is already set */
1798 /* Do the conversion */
1799 emit_struct_conv (mb, eklass, FALSE);
1802 mono_mb_emit_add_to_local (mb, index_var, 1);
1804 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1806 mono_mb_patch_branch (mb, label3);
1808 /* restore the old src pointer */
1809 mono_mb_emit_ldloc (mb, src_var);
1810 mono_mb_emit_stloc (mb, 0);
1811 /* restore the old dst pointer */
1812 mono_mb_emit_ldloc (mb, dst_var);
1813 mono_mb_emit_stloc (mb, 1);
1816 mono_mb_patch_branch (mb, pos);
1819 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1820 mono_mb_emit_ldloc (mb, 0);
1821 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1822 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1824 mono_mb_emit_ldloc (mb, 1);
1825 mono_mb_emit_ldloc (mb, 0);
1826 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1827 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1828 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1829 mono_mb_patch_short_branch (mb, pos);
1832 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1833 int src_var, dst_var;
1835 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1836 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, CEE_LDIND_I);
1840 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1842 /* save the old src pointer */
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_stloc (mb, src_var);
1845 /* save the old dst pointer */
1846 mono_mb_emit_ldloc (mb, 1);
1847 mono_mb_emit_stloc (mb, dst_var);
1849 /* src = pointer to object data */
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_byte (mb, CEE_LDIND_I);
1852 mono_mb_emit_icon (mb, sizeof (MonoObject));
1853 mono_mb_emit_byte (mb, CEE_ADD);
1854 mono_mb_emit_stloc (mb, 0);
1856 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1858 /* restore the old src pointer */
1859 mono_mb_emit_ldloc (mb, src_var);
1860 mono_mb_emit_stloc (mb, 0);
1861 /* restore the old dst pointer */
1862 mono_mb_emit_ldloc (mb, dst_var);
1863 mono_mb_emit_stloc (mb, 1);
1865 mono_mb_patch_branch (mb, pos);
1870 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1871 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1872 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1873 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1875 #endif /* DISABLE_COM */
1877 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1880 mono_mb_emit_ldloc (mb, 0);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1883 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1884 mono_mb_patch_branch (mb, pos);
1886 /* Pull the handle field from SafeHandle */
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_ldloc (mb, 0);
1889 mono_mb_emit_byte (mb, CEE_LDIND_I);
1890 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1891 mono_mb_emit_byte (mb, CEE_LDIND_I);
1892 mono_mb_emit_byte (mb, CEE_STIND_I);
1896 case MONO_MARSHAL_CONV_HANDLEREF: {
1897 mono_mb_emit_ldloc (mb, 1);
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1900 mono_mb_emit_byte (mb, CEE_ADD);
1901 mono_mb_emit_byte (mb, CEE_LDIND_I);
1902 mono_mb_emit_byte (mb, CEE_STIND_I);
1907 g_error ("marshalling conversion %d not implemented", conv);
1913 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1914 MonoMarshalNative string_encoding)
1916 MonoMarshalType *info;
1920 emit_struct_conv(mb, klass->parent, to_object);
1922 info = mono_marshal_load_type_info (klass);
1924 if (info->native_size == 0)
1927 if (klass->blittable) {
1928 int msize = mono_class_value_size (klass, NULL);
1929 g_assert (msize == info->native_size);
1930 mono_mb_emit_ldloc (mb, 1);
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_icon (mb, msize);
1933 mono_mb_emit_byte (mb, CEE_PREFIX1);
1934 mono_mb_emit_byte (mb, CEE_CPBLK);
1936 mono_mb_emit_add_to_local (mb, 0, msize);
1937 mono_mb_emit_add_to_local (mb, 1, msize);
1941 if (klass != mono_class_try_get_safehandle_class ()) {
1942 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1943 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1944 mono_type_full_name (&klass->byval_arg));
1945 mono_mb_emit_exception_marshal_directive (mb, msg);
1950 for (i = 0; i < info->num_fields; i++) {
1951 MonoMarshalNative ntype;
1952 MonoMarshalConv conv;
1953 MonoType *ftype = info->fields [i].field->type;
1956 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1958 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1961 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1964 msize = klass->instance_size - info->fields [i].field->offset;
1965 usize = info->native_size - info->fields [i].offset;
1967 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1968 usize = info->fields [i + 1].offset - info->fields [i].offset;
1971 if (klass != mono_class_try_get_safehandle_class ()){
1973 * FIXME: Should really check for usize==0 and msize>0, but we apply
1974 * the layout to the managed structure as well.
1977 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1978 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1979 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1980 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1981 "reference field at the same offset as another field.",
1982 mono_type_full_name (&klass->byval_arg));
1987 case MONO_MARSHAL_CONV_NONE: {
1990 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1991 g_assert (!ftype->byref);
1992 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1993 mono_mb_emit_ldloc (mb, 1);
1994 mono_mb_emit_ldloc (mb, 0);
1995 mono_mb_emit_byte (mb, CEE_LDIND_I);
1996 mono_mb_emit_byte (mb, CEE_STIND_I);
2007 case MONO_TYPE_BOOLEAN:
2010 case MONO_TYPE_CHAR:
2016 mono_mb_emit_ldloc (mb, 1);
2017 mono_mb_emit_ldloc (mb, 0);
2018 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2020 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2021 mono_mb_emit_byte (mb, CEE_STIND_I2);
2023 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2024 mono_mb_emit_byte (mb, CEE_STIND_I1);
2027 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2028 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2031 case MONO_TYPE_VALUETYPE: {
2032 int src_var, dst_var;
2034 if (ftype->data.klass->enumtype) {
2035 ftype = mono_class_enum_basetype (ftype->data.klass);
2039 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2040 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2042 /* save the old src pointer */
2043 mono_mb_emit_ldloc (mb, 0);
2044 mono_mb_emit_stloc (mb, src_var);
2045 /* save the old dst pointer */
2046 mono_mb_emit_ldloc (mb, 1);
2047 mono_mb_emit_stloc (mb, dst_var);
2049 emit_struct_conv (mb, ftype->data.klass, to_object);
2051 /* restore the old src pointer */
2052 mono_mb_emit_ldloc (mb, src_var);
2053 mono_mb_emit_stloc (mb, 0);
2054 /* restore the old dst pointer */
2055 mono_mb_emit_ldloc (mb, dst_var);
2056 mono_mb_emit_stloc (mb, 1);
2059 case MONO_TYPE_OBJECT: {
2062 static MonoMethod *variant_clear = NULL;
2063 static MonoMethod *get_object_for_native_variant = NULL;
2066 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2067 if (!get_object_for_native_variant)
2068 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2069 mono_mb_emit_ldloc (mb, 1);
2070 mono_mb_emit_ldloc (mb, 0);
2071 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2072 mono_mb_emit_byte (mb, CEE_STIND_REF);
2074 mono_mb_emit_ldloc (mb, 0);
2075 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2078 static MonoMethod *get_native_variant_for_object = NULL;
2080 if (!get_native_variant_for_object)
2081 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2083 mono_mb_emit_ldloc (mb, 0);
2084 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2085 mono_mb_emit_ldloc (mb, 1);
2086 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2089 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2090 mono_mb_emit_exception_marshal_directive (mb, msg);
2096 g_warning ("marshaling type %02x not implemented", ftype->type);
2097 g_assert_not_reached ();
2102 int src_var, dst_var;
2104 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2105 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2107 /* save the old src pointer */
2108 mono_mb_emit_ldloc (mb, 0);
2109 mono_mb_emit_stloc (mb, src_var);
2110 /* save the old dst pointer */
2111 mono_mb_emit_ldloc (mb, 1);
2112 mono_mb_emit_stloc (mb, dst_var);
2115 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2117 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2119 /* restore the old src pointer */
2120 mono_mb_emit_ldloc (mb, src_var);
2121 mono_mb_emit_stloc (mb, 0);
2122 /* restore the old dst pointer */
2123 mono_mb_emit_ldloc (mb, dst_var);
2124 mono_mb_emit_stloc (mb, 1);
2129 mono_mb_emit_add_to_local (mb, 0, usize);
2130 mono_mb_emit_add_to_local (mb, 1, msize);
2132 mono_mb_emit_add_to_local (mb, 0, msize);
2133 mono_mb_emit_add_to_local (mb, 1, usize);
2139 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2141 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2145 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2147 /* Call DestroyStructure */
2148 /* FIXME: Only do this if needed */
2149 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2150 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2151 mono_mb_emit_ldloc (mb, struct_var);
2152 mono_mb_emit_icall (mb, mono_struct_delete_old);
2156 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2158 int pos_noabort, pos_noex;
2160 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2161 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2162 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2163 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2165 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2166 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2168 mono_mb_emit_icall (mb, checkpoint_func);
2169 /* Throw the exception returned by the checkpoint function, if any */
2170 mono_mb_emit_byte (mb, CEE_DUP);
2171 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2172 mono_mb_emit_byte (mb, CEE_THROW);
2173 mono_mb_patch_branch (mb, pos_noex);
2174 mono_mb_emit_byte (mb, CEE_POP);
2176 mono_mb_patch_branch (mb, pos_noabort);
2180 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2182 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2185 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2189 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2191 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2195 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2197 emit_thread_interrupt_checkpoint (mb);
2201 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2203 emit_thread_force_interrupt_checkpoint (mb);
2206 #endif /* DISABLE_JIT */
2208 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2209 static MonoAsyncResult *
2210 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2213 MonoMulticastDelegate *mcast_delegate;
2217 g_assert (delegate);
2218 mcast_delegate = (MonoMulticastDelegate *) delegate;
2219 if (mcast_delegate->delegates != NULL) {
2220 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2224 #ifndef DISABLE_REMOTING
2225 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2226 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2227 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2228 /* If the target is a proxy, make a direct call. Is proxy's work
2229 // to make the call asynchronous.
2231 MonoMethodMessage *msg;
2232 MonoDelegate *async_callback;
2234 MonoAsyncResult *ares;
2236 MonoArray *out_args;
2237 method = delegate->method;
2239 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2240 if (mono_error_set_pending_exception (&error))
2242 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2243 if (mono_error_set_pending_exception (&error))
2245 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2246 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2247 MONO_OBJECT_SETREF (msg, async_result, ares);
2248 msg->call_type = CallType_BeginInvoke;
2251 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2252 if (!mono_error_ok (&error)) {
2253 mono_error_set_pending_exception (&error);
2257 mono_set_pending_exception ((MonoException *) exc);
2263 klass = delegate->object.vtable->klass;
2265 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2267 method = mono_get_delegate_invoke (klass);
2270 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2271 mono_error_set_pending_exception (&error);
2278 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2280 int i, params_var, tmp_var;
2282 /* allocate local (pointer) *params[] */
2283 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2284 /* allocate local (pointer) tmp */
2285 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2287 /* alloate space on stack to store an array of pointers to the arguments */
2288 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2289 mono_mb_emit_byte (mb, CEE_PREFIX1);
2290 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2291 mono_mb_emit_stloc (mb, params_var);
2294 mono_mb_emit_ldloc (mb, params_var);
2295 mono_mb_emit_stloc (mb, tmp_var);
2297 if (save_this && sig->hasthis) {
2298 mono_mb_emit_ldloc (mb, tmp_var);
2299 mono_mb_emit_ldarg_addr (mb, 0);
2300 mono_mb_emit_byte (mb, CEE_STIND_I);
2301 /* tmp = tmp + sizeof (gpointer) */
2302 if (sig->param_count)
2303 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2307 for (i = 0; i < sig->param_count; i++) {
2308 mono_mb_emit_ldloc (mb, tmp_var);
2309 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2310 mono_mb_emit_byte (mb, CEE_STIND_I);
2311 /* tmp = tmp + sizeof (gpointer) */
2312 if (i < (sig->param_count - 1))
2313 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2319 #endif /* DISABLE_JIT */
2322 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2326 GString *res = g_string_new ("");
2329 g_string_append (res, prefix);
2330 g_string_append_c (res, '_');
2333 mono_type_get_desc (res, sig->ret, FALSE);
2336 g_string_append (res, "__this__");
2338 for (i = 0; i < sig->param_count; ++i) {
2339 g_string_append_c (res, '_');
2340 mono_type_get_desc (res, sig->params [i], FALSE);
2343 g_string_free (res, FALSE);
2348 * mono_marshal_get_string_encoding:
2350 * Return the string encoding which should be used for a given parameter.
2352 static MonoMarshalNative
2353 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2355 /* First try the parameter marshal info */
2357 if (spec->native == MONO_NATIVE_LPARRAY) {
2358 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2359 return spec->data.array_data.elem_type;
2362 return spec->native;
2366 return MONO_NATIVE_LPSTR;
2368 /* Then try the method level marshal info */
2369 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2370 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2371 return MONO_NATIVE_LPSTR;
2372 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2373 return MONO_NATIVE_LPWSTR;
2374 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2376 return MONO_NATIVE_LPWSTR;
2378 return MONO_NATIVE_LPSTR;
2381 return MONO_NATIVE_LPSTR;
2385 static MonoMarshalConv
2386 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2388 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2391 case MONO_NATIVE_LPWSTR:
2392 return MONO_MARSHAL_CONV_STR_LPWSTR;
2393 case MONO_NATIVE_LPSTR:
2394 case MONO_NATIVE_VBBYREFSTR:
2395 return MONO_MARSHAL_CONV_STR_LPSTR;
2396 case MONO_NATIVE_LPTSTR:
2397 return MONO_MARSHAL_CONV_STR_LPTSTR;
2398 case MONO_NATIVE_BSTR:
2399 return MONO_MARSHAL_CONV_STR_BSTR;
2401 return MONO_MARSHAL_CONV_INVALID;
2405 static MonoMarshalConv
2406 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2408 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2411 case MONO_NATIVE_LPWSTR:
2412 return MONO_MARSHAL_CONV_SB_LPWSTR;
2414 case MONO_NATIVE_LPSTR:
2415 return MONO_MARSHAL_CONV_SB_LPSTR;
2417 case MONO_NATIVE_LPTSTR:
2418 return MONO_MARSHAL_CONV_SB_LPTSTR;
2421 return MONO_MARSHAL_CONV_INVALID;
2425 static MonoMarshalConv
2426 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2428 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2433 case MONO_NATIVE_LPWSTR:
2435 return MONO_MARSHAL_CONV_LPWSTR_STR;
2436 case MONO_NATIVE_LPSTR:
2437 case MONO_NATIVE_VBBYREFSTR:
2438 return MONO_MARSHAL_CONV_LPSTR_STR;
2439 case MONO_NATIVE_LPTSTR:
2440 return MONO_MARSHAL_CONV_LPTSTR_STR;
2441 case MONO_NATIVE_BSTR:
2442 return MONO_MARSHAL_CONV_BSTR_STR;
2444 return MONO_MARSHAL_CONV_INVALID;
2448 static MonoMarshalConv
2449 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2451 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2456 case MONO_NATIVE_LPWSTR:
2458 * mono_string_builder_to_utf16 does not allocate a
2459 * new buffer, so no need to free it.
2462 return MONO_MARSHAL_CONV_LPWSTR_SB;
2463 case MONO_NATIVE_LPSTR:
2464 return MONO_MARSHAL_CONV_LPSTR_SB;
2466 case MONO_NATIVE_LPTSTR:
2467 return MONO_MARSHAL_CONV_LPTSTR_SB;
2470 return MONO_MARSHAL_CONV_INVALID;
2475 * Return whenever a field of a native structure or an array member needs to
2479 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2481 MonoMarshalNative encoding;
2484 case MONO_TYPE_VALUETYPE:
2485 /* FIXME: Optimize this */
2487 case MONO_TYPE_OBJECT:
2488 case MONO_TYPE_CLASS:
2489 if (t->data.klass == mono_defaults.stringbuilder_class) {
2491 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2495 case MONO_TYPE_STRING:
2496 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2497 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2504 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2507 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2510 mono_marshal_lock ();
2513 g_hash_table_new (hash_func, equal_func);
2514 mono_memory_barrier ();
2517 mono_marshal_unlock ();
2523 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2525 return get_cache (var, hash_func, equal_func);
2529 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2533 mono_marshal_lock ();
2534 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2535 mono_marshal_unlock ();
2542 * Create a MonoMethod from MB, set INFO as wrapper info.
2545 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2546 int max_stack, WrapperInfo *info)
2550 res = mono_mb_create_method (mb, sig, max_stack);
2552 mono_marshal_set_wrapper_info (res, info);
2556 /* Create the method from the builder and place it in the cache */
2558 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2559 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2560 int max_stack, WrapperInfo *info, gboolean *out_found)
2567 mono_marshal_lock ();
2568 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2569 mono_marshal_unlock ();
2572 newm = mono_mb_create_method (mb, sig, max_stack);
2573 mono_marshal_lock ();
2574 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2577 g_hash_table_insert (cache, key, res);
2578 mono_marshal_set_wrapper_info (res, info);
2579 mono_marshal_unlock ();
2583 mono_marshal_unlock ();
2584 mono_free_method (newm);
2592 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2593 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2596 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2600 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2603 int wrapper_type = wrapper->wrapper_type;
2606 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2609 info = mono_marshal_get_wrapper_info (wrapper);
2611 switch (wrapper_type) {
2612 case MONO_WRAPPER_REMOTING_INVOKE:
2613 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2614 case MONO_WRAPPER_XDOMAIN_INVOKE:
2615 m = info->d.remoting.method;
2616 if (wrapper->is_inflated) {
2620 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2621 * contains an uninflated method.
2623 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2624 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2628 case MONO_WRAPPER_SYNCHRONIZED:
2629 m = info->d.synchronized.method;
2630 if (wrapper->is_inflated) {
2633 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2634 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2638 case MONO_WRAPPER_UNBOX:
2639 return info->d.unbox.method;
2640 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2641 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2642 return info->d.managed_to_native.method;
2645 case MONO_WRAPPER_RUNTIME_INVOKE:
2646 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2647 return info->d.runtime_invoke.method;
2656 * mono_marshal_get_wrapper_info:
2658 * Retrieve the WrapperInfo structure associated with WRAPPER.
2661 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2663 g_assert (wrapper->wrapper_type);
2665 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2669 * mono_marshal_set_wrapper_info:
2671 * Set the WrapperInfo structure associated with the wrapper
2672 * method METHOD to INFO.
2675 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2679 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2682 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2687 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2691 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2692 info->subtype = subtype;
2697 * get_wrapper_target_class:
2699 * Return the class where a wrapper method should be placed.
2702 get_wrapper_target_class (MonoImage *image)
2709 * - can't put all wrappers into an mscorlib class, because they reference
2710 * metadata (signature) so they should be put into the same image as the
2711 * method they wrap, so they are unloaded together.
2712 * - putting them into a class with a type initalizer could cause the
2713 * initializer to be executed which can be a problem if the wrappers are
2715 * - putting them into an inflated class can cause problems if the the
2716 * class is deleted because it references an image which is unloaded.
2717 * To avoid these problems, we put the wrappers into the <Module> class of
2720 if (image_is_dynamic (image)) {
2721 klass = ((MonoDynamicImage*)image)->wrappers_type;
2723 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2724 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2732 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2733 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2737 * check_generic_wrapper_cache:
2739 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2740 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2741 * generic method definition.
2744 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2747 MonoMethod *inst, *def;
2748 MonoGenericContext *ctx;
2750 g_assert (orig_method->is_inflated);
2751 ctx = mono_method_get_context (orig_method);
2754 * Look for the instance
2756 res = mono_marshal_find_in_cache (cache, key);
2761 * Look for the definition
2763 def = mono_marshal_find_in_cache (cache, def_key);
2766 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2767 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2769 mono_memory_barrier ();
2770 mono_marshal_lock ();
2771 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2773 g_hash_table_insert (cache, key, inst);
2776 mono_marshal_unlock ();
2783 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2786 MonoMethod *inst, *res;
2789 * We use the same cache for the generic definition and the instances.
2791 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2792 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2793 mono_memory_barrier ();
2794 mono_marshal_lock ();
2795 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2797 g_hash_table_insert (cache, key, inst);
2800 mono_marshal_unlock ();
2805 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2809 MonoMethod *inst, *def;
2812 * Look for the instance
2814 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2819 * Look for the definition
2821 def = mono_marshal_find_in_cache (cache, def_method->klass);
2823 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2824 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2827 mono_memory_barrier ();
2828 mono_marshal_lock ();
2829 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2831 g_hash_table_insert (cache, orig_method->klass, inst);
2834 mono_marshal_unlock ();
2841 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2844 MonoMethod *inst, *res;
2847 * We use the same cache for the generic definition and the instances.
2849 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2850 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2852 mono_memory_barrier ();
2853 mono_marshal_lock ();
2854 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2856 g_hash_table_insert (cache, orig_method->klass, inst);
2859 mono_marshal_unlock ();
2864 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2866 MonoMethodSignature *sig;
2867 MonoMethodBuilder *mb;
2872 MonoGenericContext *ctx = NULL;
2873 MonoMethod *orig_method = NULL;
2875 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2876 !strcmp (method->name, "BeginInvoke"));
2879 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2881 if (method->is_inflated) {
2882 orig_method = method;
2883 ctx = &((MonoMethodInflated*)method)->context;
2884 method = ((MonoMethodInflated*)method)->declaring;
2887 sig = mono_signature_no_pinvoke (method);
2893 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2894 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2898 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2899 (GHashFunc)mono_signature_hash,
2900 (GCompareFunc)mono_metadata_signature_equal);
2901 if ((res = mono_marshal_find_in_cache (cache, sig)))
2905 g_assert (sig->hasthis);
2907 name = mono_signature_to_name (sig, "begin_invoke");
2909 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2911 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2915 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2917 mono_mb_emit_ldarg (mb, 0);
2918 mono_mb_emit_ldloc (mb, params_var);
2919 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2920 mono_mb_emit_byte (mb, CEE_RET);
2925 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2926 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2928 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2935 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2937 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2940 MonoDomain *domain = mono_domain_get ();
2941 MonoAsyncResult *ares;
2942 MonoMethod *method = NULL;
2943 MonoMethodSignature *sig;
2944 MonoMethodMessage *msg;
2945 MonoObject *res, *exc;
2946 MonoArray *out_args;
2949 g_assert (delegate);
2951 if (!delegate->method_info) {
2952 g_assert (delegate->method);
2953 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2954 if (!mono_error_ok (&error)) {
2955 mono_error_set_pending_exception (&error);
2958 MONO_OBJECT_SETREF (delegate, method_info, rm);
2961 if (!delegate->method_info || !delegate->method_info->method)
2962 g_assert_not_reached ();
2964 klass = delegate->object.vtable->klass;
2966 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2967 g_assert (method != NULL);
2969 sig = mono_signature_no_pinvoke (method);
2971 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2972 if (mono_error_set_pending_exception (&error))
2975 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2977 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2981 if (ares->async_delegate != (MonoObject*)delegate) {
2982 mono_set_pending_exception (mono_get_exception_invalid_operation (
2983 "The IAsyncResult object provided does not match this delegate."));
2987 #ifndef DISABLE_REMOTING
2988 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2989 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2990 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2991 if (!mono_error_ok (&error)) {
2992 mono_error_set_pending_exception (&error);
2995 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
2996 if (mono_error_set_pending_exception (&error))
2998 msg->call_type = CallType_EndInvoke;
2999 MONO_OBJECT_SETREF (msg, async_result, ares);
3000 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3001 if (!mono_error_ok (&error)) {
3002 mono_error_set_pending_exception (&error);
3008 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
3012 if (((MonoException*)exc)->stack_trace) {
3013 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3015 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3017 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3020 mono_set_pending_exception ((MonoException*)exc);
3023 mono_method_return_message_restore (method, params, out_args, &error);
3024 mono_error_set_pending_exception (&error);
3031 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3033 MonoType *t = mono_type_get_underlying_type (return_type);
3035 if (return_type->byref)
3036 return_type = &mono_defaults.int_class->byval_arg;
3039 case MONO_TYPE_VOID:
3040 g_assert_not_reached ();
3043 case MONO_TYPE_STRING:
3044 case MONO_TYPE_CLASS:
3045 case MONO_TYPE_OBJECT:
3046 case MONO_TYPE_ARRAY:
3047 case MONO_TYPE_SZARRAY:
3051 case MONO_TYPE_BOOLEAN:
3054 case MONO_TYPE_CHAR:
3064 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3065 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3067 case MONO_TYPE_GENERICINST:
3068 if (!mono_type_generic_inst_is_valuetype (t))
3071 case MONO_TYPE_VALUETYPE: {
3072 MonoClass *klass = mono_class_from_mono_type (return_type);
3073 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3074 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3078 case MONO_TYPE_MVAR: {
3079 MonoClass *klass = mono_class_from_mono_type (return_type);
3080 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3084 g_warning ("type 0x%x not handled", return_type->type);
3085 g_assert_not_reached ();
3088 mono_mb_emit_byte (mb, CEE_RET);
3091 #endif /* DISABLE_JIT */
3094 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3096 MonoMethodSignature *sig;
3097 MonoMethodBuilder *mb;
3102 MonoGenericContext *ctx = NULL;
3103 MonoMethod *orig_method = NULL;
3105 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3106 !strcmp (method->name, "EndInvoke"));
3109 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3111 if (method->is_inflated) {
3112 orig_method = method;
3113 ctx = &((MonoMethodInflated*)method)->context;
3114 method = ((MonoMethodInflated*)method)->declaring;
3117 sig = mono_signature_no_pinvoke (method);
3123 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3124 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3128 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3129 (GHashFunc)mono_signature_hash,
3130 (GCompareFunc)mono_metadata_signature_equal);
3131 if ((res = mono_marshal_find_in_cache (cache, sig)))
3135 g_assert (sig->hasthis);
3137 name = mono_signature_to_name (sig, "end_invoke");
3139 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3141 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3145 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3147 mono_mb_emit_ldarg (mb, 0);
3148 mono_mb_emit_ldloc (mb, params_var);
3149 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3151 if (sig->ret->type == MONO_TYPE_VOID) {
3152 mono_mb_emit_byte (mb, CEE_POP);
3153 mono_mb_emit_byte (mb, CEE_RET);
3155 mono_mb_emit_restore_result (mb, sig->ret);
3160 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3161 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3163 res = mono_mb_create_and_cache (cache, sig,
3164 mb, sig, sig->param_count + 16);
3173 MonoMethodSignature *sig;
3175 } SignaturePointerPair;
3178 signature_pointer_pair_hash (gconstpointer data)
3180 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3182 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3186 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3188 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3189 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3193 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3195 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3197 return pair->pointer == user_data;
3201 free_signature_pointer_pair (SignaturePointerPair *pair)
3207 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3209 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3211 MonoMethodBuilder *mb;
3214 gpointer cache_key = NULL;
3215 SignaturePointerPair key;
3216 SignaturePointerPair *new_key;
3217 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3218 int pos0, pos1, pos2;
3220 MonoClass *target_class = NULL;
3221 gboolean closed_over_null = FALSE;
3222 MonoGenericContext *ctx = NULL;
3223 MonoGenericContainer *container = NULL;
3224 MonoMethod *orig_method = NULL;
3226 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3230 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3231 !strcmp (method->name, "Invoke"));
3233 invoke_sig = sig = mono_signature_no_pinvoke (method);
3236 * If the delegate target is null, and the target method is not static, a virtual
3237 * call is made to that method with the first delegate argument as this. This is
3238 * a non-documented .NET feature.
3241 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3242 if (target_method->is_inflated) {
3244 MonoType *target_type;
3246 g_assert (method->signature->hasthis);
3247 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3248 mono_method_get_context (method), &error);
3249 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3250 target_class = mono_class_from_mono_type (target_type);
3252 target_class = target_method->klass;
3255 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3258 if (static_method_with_first_arg_bound) {
3259 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3260 g_assert (!callvirt);
3261 invoke_sig = mono_method_signature (target_method);
3265 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3267 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3268 orig_method = method;
3269 ctx = &((MonoMethodInflated*)method)->context;
3270 method = ((MonoMethodInflated*)method)->declaring;
3272 container = mono_method_get_generic_container (method);
3274 container = method->klass->generic_container;
3275 g_assert (container);
3277 invoke_sig = sig = mono_signature_no_pinvoke (method);
3284 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3285 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3288 cache_key = method->klass;
3289 } else if (static_method_with_first_arg_bound) {
3290 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3291 (GHashFunc)mono_signature_hash,
3292 (GCompareFunc)mono_metadata_signature_equal);
3294 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3296 res = mono_marshal_find_in_cache (cache, invoke_sig);
3299 cache_key = invoke_sig;
3300 } else if (callvirt) {
3301 GHashTable **cache_ptr;
3303 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3305 /* We need to cache the signature+method pair */
3306 mono_marshal_lock ();
3308 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3310 key.sig = invoke_sig;
3311 key.pointer = target_method;
3312 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3313 mono_marshal_unlock ();
3317 // Inflated methods should not be in this cache because it's not stored on the imageset.
3318 g_assert (!method->is_inflated);
3319 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3320 (GHashFunc)mono_signature_hash,
3321 (GCompareFunc)mono_metadata_signature_equal);
3322 res = mono_marshal_find_in_cache (cache, sig);
3328 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3329 static_sig->hasthis = 0;
3330 if (!static_method_with_first_arg_bound)
3331 invoke_sig = static_sig;
3333 if (static_method_with_first_arg_bound)
3334 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3335 else if (closed_over_null)
3336 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3338 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3340 name = mono_signature_to_name (invoke_sig, "invoke");
3342 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3344 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3348 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3350 /* allocate local 0 (object) */
3351 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3352 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3353 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3354 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3355 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3358 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3360 g_assert (sig->hasthis);
3363 * {type: sig->ret} res;
3364 * if (delegates == null) {
3365 * return this.<target> ( args .. );
3367 * int i = 0, len = this.delegates.Length;
3369 * res = this.delegates [i].Invoke ( args .. );
3370 * } while (++i < len);
3375 /* this wrapper can be used in unmanaged-managed transitions */
3376 emit_thread_interrupt_checkpoint (mb);
3378 /* delegates = this.delegates */
3379 mono_mb_emit_ldarg (mb, 0);
3380 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3382 mono_mb_emit_stloc (mb, local_delegates);
3385 /* if (delegates == null) */
3386 mono_mb_emit_ldloc (mb, local_delegates);
3387 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3389 /* return target.<target_method|method_ptr> ( args .. ); */
3391 /* target = d.target; */
3392 mono_mb_emit_ldarg (mb, 0);
3393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3394 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3395 mono_mb_emit_stloc (mb, local_target);
3397 /*static methods with bound first arg can have null target and still be bound*/
3398 if (!static_method_with_first_arg_bound) {
3399 /* if target != null */
3400 mono_mb_emit_ldloc (mb, local_target);
3401 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3403 /* then call this->method_ptr nonstatic */
3406 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3408 mono_mb_emit_ldloc (mb, local_target);
3409 for (i = 0; i < sig->param_count; ++i)
3410 mono_mb_emit_ldarg (mb, i + 1);
3411 mono_mb_emit_ldarg (mb, 0);
3412 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3413 mono_mb_emit_byte (mb, CEE_LDIND_I);
3414 mono_mb_emit_ldarg (mb, 0);
3415 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3416 mono_mb_emit_byte (mb, CEE_LDIND_I);
3417 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3418 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3419 mono_mb_emit_byte (mb, CEE_RET);
3422 /* else [target == null] call this->method_ptr static */
3423 mono_mb_patch_branch (mb, pos0);
3427 if (!closed_over_null) {
3428 if (target_class->valuetype) {
3429 mono_mb_emit_ldarg (mb, 1);
3430 for (i = 1; i < sig->param_count; ++i)
3431 mono_mb_emit_ldarg (mb, i + 1);
3432 mono_mb_emit_op (mb, CEE_CALL, target_method);
3434 mono_mb_emit_ldarg (mb, 1);
3435 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3436 for (i = 1; i < sig->param_count; ++i)
3437 mono_mb_emit_ldarg (mb, i + 1);
3438 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3441 mono_mb_emit_byte (mb, CEE_LDNULL);
3442 for (i = 0; i < sig->param_count; ++i)
3443 mono_mb_emit_ldarg (mb, i + 1);
3444 mono_mb_emit_op (mb, CEE_CALL, target_method);
3447 if (static_method_with_first_arg_bound) {
3448 mono_mb_emit_ldloc (mb, local_target);
3449 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3450 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3452 for (i = 0; i < sig->param_count; ++i)
3453 mono_mb_emit_ldarg (mb, i + 1);
3454 mono_mb_emit_ldarg (mb, 0);
3455 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3456 mono_mb_emit_byte (mb, CEE_LDIND_I);
3457 mono_mb_emit_ldarg (mb, 0);
3458 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3459 mono_mb_emit_byte (mb, CEE_LDIND_I);
3460 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3461 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3464 mono_mb_emit_byte (mb, CEE_RET);
3466 /* else [delegates != null] */
3467 mono_mb_patch_branch (mb, pos2);
3469 /* len = delegates.Length; */
3470 mono_mb_emit_ldloc (mb, local_delegates);
3471 mono_mb_emit_byte (mb, CEE_LDLEN);
3472 mono_mb_emit_byte (mb, CEE_CONV_I4);
3473 mono_mb_emit_stloc (mb, local_len);
3476 mono_mb_emit_icon (mb, 0);
3477 mono_mb_emit_stloc (mb, local_i);
3479 pos1 = mono_mb_get_label (mb);
3481 /* d = delegates [i]; */
3482 mono_mb_emit_ldloc (mb, local_delegates);
3483 mono_mb_emit_ldloc (mb, local_i);
3484 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3485 mono_mb_emit_stloc (mb, local_d);
3487 /* res = d.Invoke ( args .. ); */
3488 mono_mb_emit_ldloc (mb, local_d);
3489 for (i = 0; i < sig->param_count; i++)
3490 mono_mb_emit_ldarg (mb, i + 1);
3492 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3495 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3496 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3499 mono_mb_emit_stloc (mb, local_res);
3502 mono_mb_emit_add_to_local (mb, local_i, 1);
3505 mono_mb_emit_ldloc (mb, local_i);
3506 mono_mb_emit_ldloc (mb, local_len);
3507 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3511 mono_mb_emit_ldloc (mb, local_res);
3512 mono_mb_emit_byte (mb, CEE_RET);
3514 mb->skip_visibility = 1;
3515 #endif /* DISABLE_JIT */
3517 info = mono_wrapper_info_create (mb, subtype);
3522 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3523 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3524 } else if (callvirt) {
3525 new_key = g_new0 (SignaturePointerPair, 1);
3528 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3532 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3536 /* mono_method_print_code (res); */
3542 * the returned method invokes all methods in a multicast delegate.
3545 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3547 gboolean callvirt = FALSE;
3548 gboolean static_method_with_first_arg_bound = FALSE;
3549 MonoMethod *target_method = NULL;
3550 MonoMethodSignature *sig;
3552 sig = mono_signature_no_pinvoke (method);
3554 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3556 target_method = del->method;
3559 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3560 static_method_with_first_arg_bound = TRUE;
3561 target_method = del->method;
3564 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3568 MonoMethodSignature *ctor_sig;
3569 MonoMethodSignature *sig;
3572 /* protected by the marshal lock, contains CtorSigPair pointers */
3573 static GSList *strsig_list = NULL;
3575 static MonoMethodSignature *
3576 lookup_string_ctor_signature (MonoMethodSignature *sig)
3578 MonoMethodSignature *callsig;
3582 mono_marshal_lock ();
3584 for (item = strsig_list; item; item = item->next) {
3585 cs = (CtorSigPair *)item->data;
3586 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3587 * because it is lock-free.
3589 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3594 mono_marshal_unlock ();
3598 static MonoMethodSignature *
3599 add_string_ctor_signature (MonoMethod *method)
3601 MonoMethodSignature *callsig;
3604 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3605 callsig->ret = &mono_defaults.string_class->byval_arg;
3606 cs = g_new (CtorSigPair, 1);
3608 cs->ctor_sig = mono_method_signature (method);
3610 mono_marshal_lock ();
3611 strsig_list = g_slist_prepend (strsig_list, cs);
3612 mono_marshal_unlock ();
3617 * mono_marshal_get_string_ctor_signature:
3619 * Return the modified signature used by string ctors (they return the newly created
3622 MonoMethodSignature*
3623 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3625 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3627 sig = add_string_ctor_signature (method);
3633 get_runtime_invoke_type (MonoType *t, gboolean ret)
3636 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3638 /* Can't share this with 'I' as that needs another indirection */
3639 return &mono_defaults.int_class->this_arg;
3642 if (MONO_TYPE_IS_REFERENCE (t))
3643 return &mono_defaults.object_class->byval_arg;
3646 /* The result needs to be boxed */
3651 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3654 return &mono_defaults.sbyte_class->byval_arg;
3656 return &mono_defaults.int16_class->byval_arg;
3658 return &mono_defaults.int32_class->byval_arg;
3661 return &mono_defaults.int64_class->byval_arg;
3662 case MONO_TYPE_BOOLEAN:
3663 return &mono_defaults.byte_class->byval_arg;
3664 case MONO_TYPE_CHAR:
3665 return &mono_defaults.uint16_class->byval_arg;
3667 return &mono_defaults.int_class->byval_arg;
3668 case MONO_TYPE_VALUETYPE:
3669 if (t->data.klass->enumtype) {
3670 t = mono_class_enum_basetype (t->data.klass);
3680 * mono_marshal_get_runtime_invoke_sig:
3682 * Return a common signature used for sharing runtime invoke wrappers.
3684 static MonoMethodSignature*
3685 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3687 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3690 res->generic_param_count = 0;
3691 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3692 for (i = 0; i < res->param_count; ++i)
3693 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3699 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3701 /* Can't share wrappers which return a vtype since it needs to be boxed */
3702 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))
3705 return mono_metadata_signature_equal (sig1, sig2);
3713 * Emit the call to the wrapper method from a runtime invoke wrapper.
3716 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3717 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3719 gboolean virtual_, gboolean need_direct_wrapper)
3721 static MonoString *string_dummy = NULL;
3723 int *tmp_nullable_locals;
3724 gboolean void_ret = FALSE;
3725 gboolean string_ctor = method && method->string_ctor;
3727 /* to make it work with our special string constructors */
3728 if (!string_dummy) {
3729 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3730 string_dummy = mono_string_new_wrapper ("dummy");
3734 g_assert (sig->hasthis);
3735 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3740 if (mono_gc_is_moving ()) {
3741 mono_mb_emit_ptr (mb, &string_dummy);
3742 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3744 mono_mb_emit_ptr (mb, string_dummy);
3747 mono_mb_emit_ldarg (mb, 0);
3751 tmp_nullable_locals = g_new0 (int, sig->param_count);
3753 for (i = 0; i < sig->param_count; i++) {
3754 MonoType *t = sig->params [i];
3757 mono_mb_emit_ldarg (mb, 1);
3759 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3760 mono_mb_emit_byte (mb, CEE_ADD);
3764 mono_mb_emit_byte (mb, CEE_LDIND_I);
3765 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3766 * So to make this work we unbox it to a local variablee and push a reference to that.
3768 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3769 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3771 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3772 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3773 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3778 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3779 type = sig->params [i]->type;
3783 case MONO_TYPE_BOOLEAN:
3787 case MONO_TYPE_CHAR:
3796 mono_mb_emit_byte (mb, CEE_LDIND_I);
3797 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3799 case MONO_TYPE_STRING:
3800 case MONO_TYPE_CLASS:
3801 case MONO_TYPE_ARRAY:
3803 case MONO_TYPE_SZARRAY:
3804 case MONO_TYPE_OBJECT:
3805 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3807 case MONO_TYPE_GENERICINST:
3808 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3809 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3814 case MONO_TYPE_VALUETYPE:
3815 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3816 type = mono_class_enum_basetype (t->data.klass)->type;
3819 mono_mb_emit_byte (mb, CEE_LDIND_I);
3820 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3821 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3822 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3823 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3825 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3829 g_assert_not_reached ();
3834 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3835 } else if (need_direct_wrapper) {
3836 mono_mb_emit_op (mb, CEE_CALL, method);
3838 mono_mb_emit_ldarg (mb, 3);
3839 mono_mb_emit_calli (mb, callsig);
3842 if (sig->ret->byref) {
3844 g_assert_not_reached ();
3847 switch (sig->ret->type) {
3848 case MONO_TYPE_VOID:
3852 case MONO_TYPE_BOOLEAN:
3853 case MONO_TYPE_CHAR:
3866 case MONO_TYPE_VALUETYPE:
3867 case MONO_TYPE_TYPEDBYREF:
3868 case MONO_TYPE_GENERICINST:
3869 /* box value types */
3870 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3872 case MONO_TYPE_STRING:
3873 case MONO_TYPE_CLASS:
3874 case MONO_TYPE_ARRAY:
3875 case MONO_TYPE_SZARRAY:
3876 case MONO_TYPE_OBJECT:
3880 /* The result is an IntPtr */
3881 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3884 g_assert_not_reached ();
3888 mono_mb_emit_stloc (mb, loc_res);
3890 /* Convert back nullable-byref arguments */
3891 for (i = 0; i < sig->param_count; i++) {
3892 MonoType *t = sig->params [i];
3895 * Box the result and put it back into the array, the caller will have
3896 * to obtain it from there.
3898 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3899 mono_mb_emit_ldarg (mb, 1);
3900 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3901 mono_mb_emit_byte (mb, CEE_ADD);
3903 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3904 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3906 mono_mb_emit_byte (mb, CEE_STIND_REF);
3910 g_free (tmp_nullable_locals);
3914 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3915 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3916 gboolean virtual_, gboolean need_direct_wrapper)
3919 MonoExceptionClause *clause;
3920 int loc_res, loc_exc;
3922 /* The wrapper looks like this:
3928 * } catch (Exception e) {
3936 /* allocate local 0 (object) tmp */
3937 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3938 /* allocate local 1 (object) exc */
3939 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3941 /* *exc is assumed to be initialized to NULL by the caller */
3943 mono_mb_emit_byte (mb, CEE_LDARG_2);
3944 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3949 labels [1] = mono_mb_get_label (mb);
3950 emit_thread_force_interrupt_checkpoint (mb);
3951 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3953 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3955 /* Add a try clause around the call */
3956 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3957 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3958 clause->data.catch_class = mono_defaults.exception_class;
3959 clause->try_offset = labels [1];
3960 clause->try_len = mono_mb_get_label (mb) - labels [1];
3962 clause->handler_offset = mono_mb_get_label (mb);
3965 mono_mb_emit_stloc (mb, loc_exc);
3966 mono_mb_emit_byte (mb, CEE_LDARG_2);
3967 mono_mb_emit_ldloc (mb, loc_exc);
3968 mono_mb_emit_byte (mb, CEE_STIND_REF);
3970 mono_mb_emit_branch (mb, CEE_LEAVE);
3972 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3974 mono_mb_set_clauses (mb, 1, clause);
3976 mono_mb_patch_branch (mb, labels [2]);
3977 mono_mb_emit_ldloc (mb, loc_res);
3978 mono_mb_emit_byte (mb, CEE_RET);
3983 mono_mb_patch_branch (mb, labels [0]);
3984 emit_thread_force_interrupt_checkpoint (mb);
3985 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3987 mono_mb_emit_ldloc (mb, 0);
3988 mono_mb_emit_byte (mb, CEE_RET);
3993 * generates IL code for the runtime invoke function
3994 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3996 * we also catch exceptions if exc != null
3997 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3998 * it means that the compiled code for METHOD does not have to be looked up
3999 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4000 * its METHOD argument.
4003 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4005 MonoMethodSignature *sig, *csig, *callsig;
4006 MonoMethodBuilder *mb;
4007 GHashTable *cache = NULL;
4008 MonoClass *target_klass;
4009 MonoMethod *res = NULL;
4010 static MonoMethodSignature *cctor_signature = NULL;
4011 static MonoMethodSignature *finalize_signature = NULL;
4013 const char *param_names [16];
4014 gboolean need_direct_wrapper = FALSE;
4019 if (!cctor_signature) {
4020 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4021 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4023 if (!finalize_signature) {
4024 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4025 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4026 finalize_signature->hasthis = 1;
4030 need_direct_wrapper = TRUE;
4033 * Use a separate cache indexed by methods to speed things up and to avoid the
4034 * boundless mempool growth caused by the signature_dup stuff below.
4037 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4039 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4041 res = mono_marshal_find_in_cache (cache, method);
4045 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4046 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4048 * Array Get/Set/Address methods. The JIT implements them using inline code
4049 * so we need to create an invoke wrapper which calls the method directly.
4051 need_direct_wrapper = TRUE;
4054 if (method->string_ctor) {
4055 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4057 callsig = add_string_ctor_signature (method);
4058 /* Can't share this as we push a string as this */
4059 need_direct_wrapper = TRUE;
4061 if (method_is_dynamic (method))
4062 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4064 callsig = mono_method_signature (method);
4067 sig = mono_method_signature (method);
4069 target_klass = get_wrapper_target_class (method->klass->image);
4071 /* Try to share wrappers for non-corlib methods with simple signatures */
4072 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4073 callsig = cctor_signature;
4074 target_klass = mono_defaults.object_class;
4075 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4076 callsig = finalize_signature;
4077 target_klass = mono_defaults.object_class;
4080 if (need_direct_wrapper) {
4081 /* Already searched at the start */
4083 MonoMethodSignature *tmp_sig;
4085 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4086 GHashTable **cache_table = NULL;
4088 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4089 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4091 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4093 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4094 (GCompareFunc)runtime_invoke_signature_equal);
4096 /* from mono_marshal_find_in_cache */
4097 mono_marshal_lock ();
4098 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4099 mono_marshal_unlock ();
4106 /* Make a copy of the signature from the image mempool */
4108 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4112 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4114 csig->ret = &mono_defaults.object_class->byval_arg;
4115 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4116 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4118 csig->params [0] = &mono_defaults.object_class->byval_arg;
4119 csig->params [1] = &mono_defaults.int_class->byval_arg;
4120 csig->params [2] = &mono_defaults.int_class->byval_arg;
4121 csig->params [3] = &mono_defaults.int_class->byval_arg;
4124 /* This is called from runtime code so it has to be cdecl */
4125 csig->call_convention = MONO_CALL_C;
4128 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4129 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4133 param_names [0] = "this";
4134 param_names [1] = "params";
4135 param_names [2] = "exc";
4136 param_names [3] = "method";
4137 mono_mb_set_param_names (mb, param_names);
4139 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4142 if (need_direct_wrapper) {
4144 mb->skip_visibility = 1;
4146 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4147 info->d.runtime_invoke.method = method;
4148 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4150 /* taken from mono_mb_create_and_cache */
4151 mono_marshal_lock ();
4152 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4153 mono_marshal_unlock ();
4155 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4156 info->d.runtime_invoke.sig = callsig;
4158 /* Somebody may have created it before us */
4161 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4163 mono_marshal_lock ();
4164 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4166 GHashTable *direct_cache;
4168 g_hash_table_insert (cache, callsig, res);
4169 /* Can't insert it into wrapper_hash since the key is a signature */
4170 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4172 g_hash_table_insert (direct_cache, method, res);
4174 mono_free_method (newm);
4176 mono_marshal_unlock ();
4179 /* end mono_mb_create_and_cache */
4188 * mono_marshal_get_runtime_invoke_dynamic:
4190 * Return a method which can be used to invoke managed methods from native code
4192 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4193 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4194 * ARGS should point to an architecture specific structure containing
4195 * the arguments and space for the return value.
4196 * The other arguments are the same as for runtime_invoke (), except that
4197 * ARGS should contain the this argument too.
4198 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4199 * is only one copy of it, which is useful in full-aot.
4200 * The wrapper info for the wrapper is a WrapperInfo structure.
4203 mono_marshal_get_runtime_invoke_dynamic (void)
4205 static MonoMethod *method;
4206 MonoMethodSignature *csig;
4207 MonoExceptionClause *clause;
4208 MonoMethodBuilder *mb;
4216 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4218 csig->ret = &mono_defaults.void_class->byval_arg;
4219 csig->params [0] = &mono_defaults.int_class->byval_arg;
4220 csig->params [1] = &mono_defaults.int_class->byval_arg;
4221 csig->params [2] = &mono_defaults.int_class->byval_arg;
4222 csig->params [3] = &mono_defaults.int_class->byval_arg;
4224 name = g_strdup ("runtime_invoke_dynamic");
4225 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4229 /* allocate local 0 (object) tmp */
4230 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4231 /* allocate local 1 (object) exc */
4232 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4234 /* cond set *exc to null */
4235 mono_mb_emit_byte (mb, CEE_LDARG_1);
4236 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4237 mono_mb_emit_byte (mb, 3);
4238 mono_mb_emit_byte (mb, CEE_LDARG_1);
4239 mono_mb_emit_byte (mb, CEE_LDNULL);
4240 mono_mb_emit_byte (mb, CEE_STIND_REF);
4242 emit_thread_force_interrupt_checkpoint (mb);
4244 mono_mb_emit_byte (mb, CEE_LDARG_0);
4245 mono_mb_emit_byte (mb, CEE_LDARG_2);
4246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4247 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4249 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4251 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4252 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4253 clause->try_len = mono_mb_get_label (mb);
4256 clause->data.filter_offset = mono_mb_get_label (mb);
4258 mono_mb_emit_byte (mb, CEE_POP);
4259 mono_mb_emit_byte (mb, CEE_LDARG_1);
4260 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4261 mono_mb_emit_byte (mb, CEE_PREFIX1);
4262 mono_mb_emit_byte (mb, CEE_CGT_UN);
4263 mono_mb_emit_byte (mb, CEE_PREFIX1);
4264 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4266 clause->handler_offset = mono_mb_get_label (mb);
4269 /* store exception */
4270 mono_mb_emit_stloc (mb, 1);
4272 mono_mb_emit_byte (mb, CEE_LDARG_1);
4273 mono_mb_emit_ldloc (mb, 1);
4274 mono_mb_emit_byte (mb, CEE_STIND_REF);
4276 mono_mb_emit_byte (mb, CEE_LDNULL);
4277 mono_mb_emit_stloc (mb, 0);
4279 /* Check for the abort exception */
4280 mono_mb_emit_ldloc (mb, 1);
4281 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4282 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4284 /* Delay the abort exception */
4285 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4287 mono_mb_patch_short_branch (mb, posna);
4288 mono_mb_emit_branch (mb, CEE_LEAVE);
4290 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4292 mono_mb_set_clauses (mb, 1, clause);
4295 mono_mb_patch_branch (mb, pos);
4296 //mono_mb_emit_ldloc (mb, 0);
4297 mono_mb_emit_byte (mb, CEE_RET);
4298 #endif /* DISABLE_JIT */
4300 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4302 mono_marshal_lock ();
4303 /* double-checked locking */
4305 method = mono_mb_create (mb, csig, 16, info);
4307 mono_marshal_unlock ();
4315 * mono_marshal_get_runtime_invoke_for_sig:
4317 * Return a runtime invoke wrapper for a given signature.
4320 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4322 MonoMethodSignature *csig, *callsig;
4323 MonoMethodBuilder *mb;
4325 GHashTable *cache = NULL;
4326 GHashTable **cache_table = NULL;
4327 MonoMethod *res = NULL;
4329 const char *param_names [16];
4332 /* A simplified version of mono_marshal_get_runtime_invoke */
4334 image = mono_defaults.corlib;
4336 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4338 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4340 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4341 (GCompareFunc)runtime_invoke_signature_equal);
4343 /* from mono_marshal_find_in_cache */
4344 mono_marshal_lock ();
4345 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4346 mono_marshal_unlock ();
4353 /* Make a copy of the signature from the image mempool */
4354 callsig = mono_metadata_signature_dup_full (image, callsig);
4356 csig = mono_metadata_signature_alloc (image, 4);
4357 csig->ret = &mono_defaults.object_class->byval_arg;
4358 csig->params [0] = &mono_defaults.object_class->byval_arg;
4359 csig->params [1] = &mono_defaults.int_class->byval_arg;
4360 csig->params [2] = &mono_defaults.int_class->byval_arg;
4361 csig->params [3] = &mono_defaults.int_class->byval_arg;
4364 /* This is called from runtime code so it has to be cdecl */
4365 csig->call_convention = MONO_CALL_C;
4368 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4369 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4373 param_names [0] = "this";
4374 param_names [1] = "params";
4375 param_names [2] = "exc";
4376 param_names [3] = "method";
4377 mono_mb_set_param_names (mb, param_names);
4379 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4382 /* taken from mono_mb_create_and_cache */
4383 mono_marshal_lock ();
4384 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4385 mono_marshal_unlock ();
4387 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4388 info->d.runtime_invoke.sig = callsig;
4390 /* Somebody may have created it before us */
4393 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4395 mono_marshal_lock ();
4396 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4399 g_hash_table_insert (cache, callsig, res);
4401 mono_free_method (newm);
4403 mono_marshal_unlock ();
4406 /* end mono_mb_create_and_cache */
4415 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4417 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4418 klass->name_space, klass->name);
4420 mono_mb_emit_exception_marshal_directive (mb, msg);
4425 * generates IL code for the icall wrapper (the generated method
4426 * calls the unmanaged code in func)
4427 * The wrapper info for the wrapper is a WrapperInfo structure.
4430 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4432 MonoMethodSignature *csig, *csig2;
4433 MonoMethodBuilder *mb;
4438 g_assert (sig->pinvoke);
4440 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4442 mb->method->save_lmf = 1;
4444 /* Add an explicit this argument */
4446 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4448 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4452 mono_mb_emit_byte (mb, CEE_LDARG_0);
4454 for (i = 0; i < sig->param_count; i++)
4455 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4458 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4459 mono_mb_emit_calli (mb, csig2);
4460 if (check_exceptions)
4461 emit_thread_interrupt_checkpoint (mb);
4462 mono_mb_emit_byte (mb, CEE_RET);
4465 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4467 if (csig->call_convention == MONO_CALL_VARARG)
4468 csig->call_convention = 0;
4470 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4471 info->d.icall.func = (gpointer)func;
4472 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4479 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4480 MonoMarshalSpec *spec,
4481 int conv_arg, MonoType **conv_arg_type,
4482 MarshalAction action)
4485 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4486 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4492 static MonoClass *ICustomMarshaler = NULL;
4493 static MonoMethod *cleanup_native, *cleanup_managed;
4494 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4495 MonoMethod *get_instance = NULL;
4496 MonoMethodBuilder *mb = m->mb;
4497 char *exception_msg = NULL;
4501 if (!ICustomMarshaler) {
4502 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4504 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4505 goto handle_exception;
4508 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4509 g_assert (cleanup_native);
4510 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4511 g_assert (cleanup_managed);
4512 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4513 g_assert (marshal_managed_to_native);
4514 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4515 g_assert (marshal_native_to_managed);
4517 mono_memory_barrier ();
4518 ICustomMarshaler = klass;
4521 if (spec->data.custom_data.image)
4522 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4524 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4525 g_assert (mtype != NULL);
4526 mono_error_assert_ok (&error);
4527 mklass = mono_class_from_mono_type (mtype);
4528 g_assert (mklass != NULL);
4530 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4531 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4533 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4535 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4536 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4537 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4538 (get_sig->params [0]->type != MONO_TYPE_STRING))
4539 get_instance = NULL;
4543 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);
4546 /* Throw exception and emit compensation code if neccesary */
4547 if (exception_msg) {
4549 case MARSHAL_ACTION_CONV_IN:
4550 case MARSHAL_ACTION_CONV_RESULT:
4551 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4552 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4553 mono_mb_emit_byte (mb, CEE_POP);
4555 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4556 g_free (exception_msg);
4559 case MARSHAL_ACTION_PUSH:
4560 mono_mb_emit_byte (mb, CEE_LDNULL);
4568 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4569 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4572 case MARSHAL_ACTION_CONV_IN:
4574 case MONO_TYPE_CLASS:
4575 case MONO_TYPE_OBJECT:
4576 case MONO_TYPE_STRING:
4577 case MONO_TYPE_ARRAY:
4578 case MONO_TYPE_SZARRAY:
4579 case MONO_TYPE_VALUETYPE:
4583 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4584 g_assert_not_reached ();
4588 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4590 mono_mb_emit_byte (mb, CEE_LDNULL);
4591 mono_mb_emit_stloc (mb, conv_arg);
4593 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4596 /* Minic MS.NET behavior */
4597 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4600 /* Check for null */
4601 mono_mb_emit_ldarg (mb, argnum);
4603 mono_mb_emit_byte (mb, CEE_LDIND_I);
4604 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4606 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4608 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4610 mono_mb_emit_ldarg (mb, argnum);
4612 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4614 if (t->type == MONO_TYPE_VALUETYPE) {
4616 * Since we can't determine the type of the argument, we
4617 * will assume the unmanaged function takes a pointer.
4619 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4621 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4624 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4625 mono_mb_emit_stloc (mb, conv_arg);
4627 mono_mb_patch_branch (mb, pos2);
4630 case MARSHAL_ACTION_CONV_OUT:
4631 /* Check for null */
4632 mono_mb_emit_ldloc (mb, conv_arg);
4633 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4636 mono_mb_emit_ldarg (mb, argnum);
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);
4644 mono_mb_emit_byte (mb, CEE_STIND_REF);
4645 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4646 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4648 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4650 mono_mb_emit_ldloc (mb, conv_arg);
4651 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4653 /* We have nowhere to store the result */
4654 mono_mb_emit_byte (mb, CEE_POP);
4657 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4659 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4661 mono_mb_emit_ldloc (mb, conv_arg);
4663 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4665 mono_mb_patch_branch (mb, pos2);
4668 case MARSHAL_ACTION_PUSH:
4670 mono_mb_emit_ldloc_addr (mb, conv_arg);
4672 mono_mb_emit_ldloc (mb, conv_arg);
4675 case MARSHAL_ACTION_CONV_RESULT:
4676 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4678 mono_mb_emit_stloc (mb, 3);
4680 mono_mb_emit_ldloc (mb, 3);
4681 mono_mb_emit_stloc (mb, loc1);
4683 /* Check for null */
4684 mono_mb_emit_ldloc (mb, 3);
4685 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4687 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4689 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4690 mono_mb_emit_byte (mb, CEE_DUP);
4692 mono_mb_emit_ldloc (mb, 3);
4693 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4694 mono_mb_emit_stloc (mb, 3);
4696 mono_mb_emit_ldloc (mb, loc1);
4697 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4699 mono_mb_patch_branch (mb, pos2);
4702 case MARSHAL_ACTION_MANAGED_CONV_IN:
4703 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4705 mono_mb_emit_byte (mb, CEE_LDNULL);
4706 mono_mb_emit_stloc (mb, conv_arg);
4708 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4711 /* Check for null */
4712 mono_mb_emit_ldarg (mb, argnum);
4714 mono_mb_emit_byte (mb, CEE_LDIND_I);
4715 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4717 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4718 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4720 mono_mb_emit_ldarg (mb, argnum);
4722 mono_mb_emit_byte (mb, CEE_LDIND_I);
4724 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4725 mono_mb_emit_stloc (mb, conv_arg);
4727 mono_mb_patch_branch (mb, pos2);
4730 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4731 g_assert (!t->byref);
4733 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4735 mono_mb_emit_stloc (mb, 3);
4737 mono_mb_emit_ldloc (mb, 3);
4738 mono_mb_emit_stloc (mb, loc1);
4740 /* Check for null */
4741 mono_mb_emit_ldloc (mb, 3);
4742 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4744 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4745 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4746 mono_mb_emit_byte (mb, CEE_DUP);
4748 mono_mb_emit_ldloc (mb, 3);
4749 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4750 mono_mb_emit_stloc (mb, 3);
4752 mono_mb_emit_ldloc (mb, loc1);
4753 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4755 mono_mb_patch_branch (mb, pos2);
4758 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4760 /* Check for null */
4761 mono_mb_emit_ldloc (mb, conv_arg);
4762 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4765 mono_mb_emit_ldarg (mb, argnum);
4767 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4769 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4771 mono_mb_emit_ldloc (mb, conv_arg);
4772 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4773 mono_mb_emit_byte (mb, CEE_STIND_I);
4776 /* Call CleanUpManagedData */
4777 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4779 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4781 mono_mb_emit_ldloc (mb, conv_arg);
4782 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4784 mono_mb_patch_branch (mb, pos2);
4788 g_assert_not_reached ();
4796 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4797 MonoMarshalSpec *spec,
4798 int conv_arg, MonoType **conv_arg_type,
4799 MarshalAction action)
4802 MonoMethodBuilder *mb = m->mb;
4805 case MARSHAL_ACTION_CONV_IN: {
4806 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4808 g_assert (t->type == MONO_TYPE_OBJECT);
4809 g_assert (!t->byref);
4811 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4812 mono_mb_emit_ldarg (mb, argnum);
4813 mono_mb_emit_icon (mb, encoding);
4814 mono_mb_emit_icon (mb, t->attrs);
4815 mono_mb_emit_icall (mb, mono_marshal_asany);
4816 mono_mb_emit_stloc (mb, conv_arg);
4820 case MARSHAL_ACTION_PUSH:
4821 mono_mb_emit_ldloc (mb, conv_arg);
4824 case MARSHAL_ACTION_CONV_OUT: {
4825 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4827 mono_mb_emit_ldarg (mb, argnum);
4828 mono_mb_emit_ldloc (mb, conv_arg);
4829 mono_mb_emit_icon (mb, encoding);
4830 mono_mb_emit_icon (mb, t->attrs);
4831 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4836 g_assert_not_reached ();
4843 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4844 MonoMarshalSpec *spec,
4845 int conv_arg, MonoType **conv_arg_type,
4846 MarshalAction action)
4849 MonoMethodBuilder *mb = m->mb;
4850 MonoClass *klass, *date_time_class;
4853 klass = mono_class_from_mono_type (t);
4855 date_time_class = mono_class_get_date_time_class ();
4858 case MARSHAL_ACTION_CONV_IN:
4859 if (klass == date_time_class) {
4860 /* Convert it to an OLE DATE type */
4861 static MonoMethod *to_oadate;
4864 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4865 g_assert (to_oadate);
4867 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4870 mono_mb_emit_ldarg (mb, argnum);
4871 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4874 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4876 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4878 mono_mb_emit_ldarg_addr (mb, argnum);
4879 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4880 mono_mb_emit_stloc (mb, conv_arg);
4884 mono_mb_patch_branch (mb, pos);
4888 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4889 klass->blittable || klass->enumtype)
4892 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4894 /* store the address of the source into local variable 0 */
4896 mono_mb_emit_ldarg (mb, argnum);
4898 mono_mb_emit_ldarg_addr (mb, argnum);
4900 mono_mb_emit_stloc (mb, 0);
4902 /* allocate space for the native struct and
4903 * store the address into local variable 1 (dest) */
4904 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4905 mono_mb_emit_byte (mb, CEE_PREFIX1);
4906 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4907 mono_mb_emit_stloc (mb, conv_arg);
4910 mono_mb_emit_ldloc (mb, 0);
4911 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4914 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4916 mono_mb_emit_ldloc (mb, conv_arg);
4917 mono_mb_emit_stloc (mb, 1);
4919 /* emit valuetype conversion code */
4920 emit_struct_conv (mb, klass, FALSE);
4924 mono_mb_patch_branch (mb, pos);
4927 case MARSHAL_ACTION_PUSH:
4928 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4930 g_assert (!t->byref);
4932 /* Have to change the signature since the vtype is passed byref */
4933 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4935 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4936 klass->blittable || klass->enumtype)
4937 mono_mb_emit_ldarg_addr (mb, argnum);
4939 mono_mb_emit_ldloc (mb, conv_arg);
4943 if (klass == date_time_class) {
4945 mono_mb_emit_ldloc_addr (mb, conv_arg);
4947 mono_mb_emit_ldloc (mb, conv_arg);
4951 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4952 klass->blittable || klass->enumtype) {
4953 mono_mb_emit_ldarg (mb, argnum);
4956 mono_mb_emit_ldloc (mb, conv_arg);
4958 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4959 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4963 case MARSHAL_ACTION_CONV_OUT:
4964 if (klass == date_time_class) {
4965 /* Convert from an OLE DATE type */
4966 static MonoMethod *from_oadate;
4971 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4973 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4974 g_assert (from_oadate);
4976 mono_mb_emit_ldarg (mb, argnum);
4977 mono_mb_emit_ldloc (mb, conv_arg);
4978 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4979 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4984 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4985 klass->blittable || klass->enumtype)
4989 /* dst = argument */
4990 mono_mb_emit_ldarg (mb, argnum);
4991 mono_mb_emit_stloc (mb, 1);
4993 mono_mb_emit_ldloc (mb, 1);
4994 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4996 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4997 /* src = tmp_locals [i] */
4998 mono_mb_emit_ldloc (mb, conv_arg);
4999 mono_mb_emit_stloc (mb, 0);
5001 /* emit valuetype conversion code */
5002 emit_struct_conv (mb, klass, TRUE);
5006 emit_struct_free (mb, klass, conv_arg);
5009 mono_mb_patch_branch (mb, pos);
5012 case MARSHAL_ACTION_CONV_RESULT:
5013 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5015 mono_mb_emit_stloc (mb, 3);
5019 /* load pointer to returned value type */
5020 g_assert (m->vtaddr_var);
5021 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5022 /* store the address of the source into local variable 0 */
5023 mono_mb_emit_stloc (mb, 0);
5025 mono_mb_emit_ldloc_addr (mb, 3);
5026 mono_mb_emit_stloc (mb, 1);
5028 /* emit valuetype conversion code */
5029 emit_struct_conv (mb, klass, TRUE);
5032 case MARSHAL_ACTION_MANAGED_CONV_IN:
5033 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5034 klass->blittable || klass->enumtype) {
5039 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5041 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5045 mono_mb_emit_ldarg (mb, argnum);
5047 mono_mb_emit_ldarg_addr (mb, argnum);
5048 mono_mb_emit_stloc (mb, 0);
5051 mono_mb_emit_ldloc (mb, 0);
5052 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5055 mono_mb_emit_ldloc_addr (mb, conv_arg);
5056 mono_mb_emit_stloc (mb, 1);
5058 /* emit valuetype conversion code */
5059 emit_struct_conv (mb, klass, TRUE);
5062 mono_mb_patch_branch (mb, pos);
5065 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5066 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5067 klass->blittable || klass->enumtype) {
5071 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5074 /* Check for null */
5075 mono_mb_emit_ldarg (mb, argnum);
5076 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5079 mono_mb_emit_ldloc_addr (mb, conv_arg);
5080 mono_mb_emit_stloc (mb, 0);
5083 mono_mb_emit_ldarg (mb, argnum);
5084 mono_mb_emit_stloc (mb, 1);
5086 /* emit valuetype conversion code */
5087 emit_struct_conv (mb, klass, FALSE);
5089 mono_mb_patch_branch (mb, pos2);
5092 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5093 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5094 klass->blittable || klass->enumtype) {
5095 mono_mb_emit_stloc (mb, 3);
5100 /* load pointer to returned value type */
5101 g_assert (m->vtaddr_var);
5102 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5104 /* store the address of the source into local variable 0 */
5105 mono_mb_emit_stloc (mb, 0);
5106 /* allocate space for the native struct and
5107 * store the address into dst_ptr */
5108 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5109 m->retobj_class = klass;
5110 g_assert (m->retobj_var);
5111 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5112 mono_mb_emit_byte (mb, CEE_CONV_I);
5113 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5114 mono_mb_emit_stloc (mb, 1);
5115 mono_mb_emit_ldloc (mb, 1);
5116 mono_mb_emit_stloc (mb, m->retobj_var);
5118 /* emit valuetype conversion code */
5119 emit_struct_conv (mb, klass, FALSE);
5123 g_assert_not_reached ();
5130 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5131 MonoMarshalSpec *spec,
5132 int conv_arg, MonoType **conv_arg_type,
5133 MarshalAction action)
5137 case MARSHAL_ACTION_CONV_IN:
5138 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5140 case MARSHAL_ACTION_MANAGED_CONV_IN:
5141 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5145 MonoMethodBuilder *mb = m->mb;
5146 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5147 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5151 case MARSHAL_ACTION_CONV_IN:
5152 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5153 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5156 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5159 mono_mb_emit_ldarg (mb, argnum);
5160 mono_mb_emit_byte (mb, CEE_LDIND_I);
5162 mono_mb_emit_ldarg (mb, argnum);
5165 if (conv == MONO_MARSHAL_CONV_INVALID) {
5166 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5167 mono_mb_emit_exception_marshal_directive (mb, msg);
5169 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5171 mono_mb_emit_stloc (mb, conv_arg);
5175 case MARSHAL_ACTION_CONV_OUT:
5176 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5177 if (conv == MONO_MARSHAL_CONV_INVALID) {
5178 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5179 mono_mb_emit_exception_marshal_directive (mb, msg);
5183 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5184 static MonoMethod *m;
5187 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5192 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5193 mono_mb_emit_exception_marshal_directive (mb, msg);
5198 * Have to allocate a new string with the same length as the original, and
5199 * copy the contents of the buffer pointed to by CONV_ARG into it.
5201 g_assert (t->byref);
5202 mono_mb_emit_ldarg (mb, argnum);
5203 mono_mb_emit_ldloc (mb, conv_arg);
5204 mono_mb_emit_ldarg (mb, argnum);
5205 mono_mb_emit_byte (mb, CEE_LDIND_I);
5206 mono_mb_emit_managed_call (mb, m, NULL);
5207 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5208 mono_mb_emit_byte (mb, CEE_STIND_REF);
5209 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5211 mono_mb_emit_ldarg (mb, argnum);
5212 mono_mb_emit_ldloc (mb, conv_arg);
5213 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5214 mono_mb_emit_byte (mb, stind_op);
5219 mono_mb_emit_ldloc (mb, conv_arg);
5220 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5221 mono_mb_emit_icall (mb, mono_free_bstr);
5223 mono_mb_emit_icall (mb, mono_marshal_free);
5227 case MARSHAL_ACTION_PUSH:
5228 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5229 mono_mb_emit_ldloc_addr (mb, conv_arg);
5231 mono_mb_emit_ldloc (mb, conv_arg);
5234 case MARSHAL_ACTION_CONV_RESULT:
5235 mono_mb_emit_stloc (mb, 0);
5237 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5238 if (conv == MONO_MARSHAL_CONV_INVALID) {
5239 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5240 mono_mb_emit_exception_marshal_directive (mb, msg);
5244 mono_mb_emit_ldloc (mb, 0);
5245 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5246 mono_mb_emit_stloc (mb, 3);
5248 /* free the string */
5249 mono_mb_emit_ldloc (mb, 0);
5250 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5251 mono_mb_emit_icall (mb, mono_free_bstr);
5253 mono_mb_emit_icall (mb, mono_marshal_free);
5256 case MARSHAL_ACTION_MANAGED_CONV_IN:
5257 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5259 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5262 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5266 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5267 if (conv == MONO_MARSHAL_CONV_INVALID) {
5268 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5269 mono_mb_emit_exception_marshal_directive (mb, msg);
5273 mono_mb_emit_ldarg (mb, argnum);
5275 mono_mb_emit_byte (mb, CEE_LDIND_I);
5276 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5277 mono_mb_emit_stloc (mb, conv_arg);
5280 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5284 mono_mb_emit_ldarg (mb, argnum);
5285 mono_mb_emit_ldloc (mb, conv_arg);
5286 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5287 mono_mb_emit_byte (mb, stind_op);
5292 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5293 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5294 /* We need to make a copy so the caller is able to free it */
5295 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5297 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5298 mono_mb_emit_stloc (mb, 3);
5302 g_assert_not_reached ();
5310 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5311 MonoMarshalSpec *spec, int conv_arg,
5312 MonoType **conv_arg_type, MarshalAction action)
5315 if (action == MARSHAL_ACTION_CONV_IN)
5316 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5318 MonoMethodBuilder *mb = m->mb;
5321 case MARSHAL_ACTION_CONV_IN: {
5322 MonoType *intptr_type;
5323 int dar_release_slot, pos;
5325 intptr_type = &mono_defaults.int_class->byval_arg;
5326 conv_arg = mono_mb_add_local (mb, intptr_type);
5327 *conv_arg_type = intptr_type;
5329 if (!sh_dangerous_add_ref)
5330 init_safe_handle ();
5332 mono_mb_emit_ldarg (mb, argnum);
5333 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5334 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5336 mono_mb_patch_branch (mb, pos);
5339 * My tests in show that ref SafeHandles are not really
5340 * passed as ref objects. Instead a NULL is passed as the
5343 mono_mb_emit_icon (mb, 0);
5344 mono_mb_emit_stloc (mb, conv_arg);
5348 /* Create local to hold the ref parameter to DangerousAddRef */
5349 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5351 /* set release = false; */
5352 mono_mb_emit_icon (mb, 0);
5353 mono_mb_emit_stloc (mb, dar_release_slot);
5355 /* safehandle.DangerousAddRef (ref release) */
5356 mono_mb_emit_ldarg (mb, argnum);
5357 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5358 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5360 /* Pull the handle field from SafeHandle */
5361 mono_mb_emit_ldarg (mb, argnum);
5362 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5363 mono_mb_emit_byte (mb, CEE_LDIND_I);
5364 mono_mb_emit_stloc (mb, conv_arg);
5369 case MARSHAL_ACTION_PUSH:
5371 mono_mb_emit_ldloc_addr (mb, conv_arg);
5373 mono_mb_emit_ldloc (mb, conv_arg);
5376 case MARSHAL_ACTION_CONV_OUT: {
5377 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5378 int dar_release_slot = conv_arg + 1;
5381 if (!sh_dangerous_release)
5382 init_safe_handle ();
5388 * My tests indicate that ref SafeHandles parameters are not actually
5389 * passed by ref, but instead a new Handle is created regardless of
5390 * whether a change happens in the unmanaged side.
5392 * Also, the Handle is created before calling into unmanaged code,
5393 * but we do not support that mechanism (getting to the original
5394 * handle) and it makes no difference where we create this
5396 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5398 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5401 /* refval = new SafeHandleDerived ()*/
5402 mono_mb_emit_ldarg (mb, argnum);
5403 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5404 mono_mb_emit_byte (mb, CEE_STIND_REF);
5406 /* refval.handle = returned_handle */
5407 mono_mb_emit_ldarg (mb, argnum);
5408 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5409 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5410 mono_mb_emit_ldloc (mb, conv_arg);
5411 mono_mb_emit_byte (mb, CEE_STIND_I);
5413 mono_mb_emit_ldloc (mb, dar_release_slot);
5414 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5415 mono_mb_emit_ldarg (mb, argnum);
5416 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5417 mono_mb_patch_branch (mb, label_next);
5422 case MARSHAL_ACTION_CONV_RESULT: {
5423 MonoMethod *ctor = NULL;
5424 int intptr_handle_slot;
5426 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5427 mono_mb_emit_byte (mb, CEE_POP);
5428 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5432 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5434 mono_mb_emit_byte (mb, CEE_POP);
5435 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5438 /* Store the IntPtr results into a local */
5439 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5440 mono_mb_emit_stloc (mb, intptr_handle_slot);
5442 /* Create return value */
5443 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5444 mono_mb_emit_stloc (mb, 3);
5446 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5447 mono_mb_emit_ldloc (mb, 3);
5448 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5449 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5450 mono_mb_emit_byte (mb, CEE_STIND_I);
5454 case MARSHAL_ACTION_MANAGED_CONV_IN:
5455 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5458 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5459 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5462 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5463 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5466 printf ("Unhandled case for MarshalAction: %d\n", action);
5474 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5475 MonoMarshalSpec *spec, int conv_arg,
5476 MonoType **conv_arg_type, MarshalAction action)
5479 if (action == MARSHAL_ACTION_CONV_IN)
5480 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5482 MonoMethodBuilder *mb = m->mb;
5485 case MARSHAL_ACTION_CONV_IN: {
5486 MonoType *intptr_type;
5488 intptr_type = &mono_defaults.int_class->byval_arg;
5489 conv_arg = mono_mb_add_local (mb, intptr_type);
5490 *conv_arg_type = intptr_type;
5493 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5494 mono_mb_emit_exception_marshal_directive (mb, msg);
5497 mono_mb_emit_ldarg_addr (mb, argnum);
5498 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5499 mono_mb_emit_byte (mb, CEE_ADD);
5500 mono_mb_emit_byte (mb, CEE_LDIND_I);
5501 mono_mb_emit_stloc (mb, conv_arg);
5505 case MARSHAL_ACTION_PUSH:
5506 mono_mb_emit_ldloc (mb, conv_arg);
5509 case MARSHAL_ACTION_CONV_OUT: {
5510 /* no resource release required */
5514 case MARSHAL_ACTION_CONV_RESULT: {
5515 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5516 mono_mb_emit_exception_marshal_directive (mb, msg);
5520 case MARSHAL_ACTION_MANAGED_CONV_IN:
5521 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5524 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5525 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5528 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5529 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5532 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5540 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5541 MonoMarshalSpec *spec,
5542 int conv_arg, MonoType **conv_arg_type,
5543 MarshalAction action)
5546 if (action == MARSHAL_ACTION_CONV_IN)
5547 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5549 MonoMethodBuilder *mb = m->mb;
5550 MonoClass *klass = mono_class_from_mono_type (t);
5554 case MARSHAL_ACTION_CONV_IN:
5555 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5556 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5558 m->orig_conv_args [argnum] = 0;
5560 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5561 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5562 mono_mb_emit_exception_marshal_directive (mb, msg);
5566 if (klass->delegate) {
5568 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5569 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5570 mono_mb_emit_exception_marshal_directive (mb, msg);
5572 mono_mb_emit_byte (mb, CEE_LDNULL);
5573 mono_mb_emit_stloc (mb, conv_arg);
5575 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5577 mono_mb_emit_stloc (mb, conv_arg);
5579 } else if (klass == mono_defaults.stringbuilder_class) {
5580 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5581 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5585 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5586 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5587 mono_mb_emit_exception_marshal_directive (mb, msg);
5593 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5596 if (conv == MONO_MARSHAL_CONV_INVALID) {
5597 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5598 mono_mb_emit_exception_marshal_directive (mb, msg);
5602 mono_mb_emit_ldarg (mb, argnum);
5604 mono_mb_emit_byte (mb, CEE_LDIND_I);
5606 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5607 mono_mb_emit_stloc (mb, conv_arg);
5608 } else if (klass->blittable) {
5609 mono_mb_emit_byte (mb, CEE_LDNULL);
5610 mono_mb_emit_stloc (mb, conv_arg);
5612 mono_mb_emit_ldarg (mb, argnum);
5613 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5615 mono_mb_emit_ldarg (mb, argnum);
5616 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5617 mono_mb_emit_stloc (mb, conv_arg);
5619 mono_mb_patch_branch (mb, pos);
5622 mono_mb_emit_byte (mb, CEE_LDNULL);
5623 mono_mb_emit_stloc (mb, conv_arg);
5626 /* we dont need any conversions for out parameters */
5627 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5630 mono_mb_emit_ldarg (mb, argnum);
5631 mono_mb_emit_byte (mb, CEE_LDIND_I);
5634 mono_mb_emit_ldarg (mb, argnum);
5635 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5636 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5639 /* store the address of the source into local variable 0 */
5640 mono_mb_emit_stloc (mb, 0);
5641 mono_mb_emit_ldloc (mb, 0);
5642 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5644 /* allocate space for the native struct and store the address */
5645 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5646 mono_mb_emit_byte (mb, CEE_PREFIX1);
5647 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5648 mono_mb_emit_stloc (mb, conv_arg);
5651 /* Need to store the original buffer so we can free it later */
5652 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5653 mono_mb_emit_ldloc (mb, conv_arg);
5654 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5657 /* set the src_ptr */
5658 mono_mb_emit_ldloc (mb, 0);
5659 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5660 mono_mb_emit_stloc (mb, 0);
5663 mono_mb_emit_ldloc (mb, conv_arg);
5664 mono_mb_emit_stloc (mb, 1);
5666 /* emit valuetype conversion code */
5667 emit_struct_conv (mb, klass, FALSE);
5669 mono_mb_patch_branch (mb, pos);
5673 case MARSHAL_ACTION_CONV_OUT:
5674 if (klass == mono_defaults.stringbuilder_class) {
5676 MonoMarshalNative encoding;
5677 MonoMarshalConv conv;
5679 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5680 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5682 g_assert (encoding != -1);
5685 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5689 mono_mb_emit_ldarg (mb, argnum);
5690 mono_mb_emit_ldloc (mb, conv_arg);
5693 case MONO_NATIVE_LPWSTR:
5694 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5696 case MONO_NATIVE_LPSTR:
5697 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5700 g_assert_not_reached ();
5703 mono_mb_emit_byte (mb, CEE_STIND_REF);
5705 mono_mb_emit_ldarg (mb, argnum);
5706 mono_mb_emit_ldloc (mb, conv_arg);
5708 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5712 mono_mb_emit_ldloc (mb, conv_arg);
5713 mono_mb_emit_icall (mb, mono_marshal_free);
5718 if (klass->delegate) {
5720 mono_mb_emit_ldarg (mb, argnum);
5721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5722 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5723 mono_mb_emit_ldloc (mb, conv_arg);
5724 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5725 mono_mb_emit_byte (mb, CEE_STIND_REF);
5730 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5731 /* allocate a new object */
5732 mono_mb_emit_ldarg (mb, argnum);
5733 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5734 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5735 mono_mb_emit_byte (mb, CEE_STIND_REF);
5738 /* dst = *argument */
5739 mono_mb_emit_ldarg (mb, argnum);
5742 mono_mb_emit_byte (mb, CEE_LDIND_I);
5744 mono_mb_emit_stloc (mb, 1);
5746 mono_mb_emit_ldloc (mb, 1);
5747 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5749 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5750 mono_mb_emit_ldloc (mb, 1);
5751 mono_mb_emit_icon (mb, sizeof (MonoObject));
5752 mono_mb_emit_byte (mb, CEE_ADD);
5753 mono_mb_emit_stloc (mb, 1);
5755 /* src = tmp_locals [i] */
5756 mono_mb_emit_ldloc (mb, conv_arg);
5757 mono_mb_emit_stloc (mb, 0);
5759 /* emit valuetype conversion code */
5760 emit_struct_conv (mb, klass, TRUE);
5762 /* Free the structure returned by the native code */
5763 emit_struct_free (mb, klass, conv_arg);
5765 if (m->orig_conv_args [argnum]) {
5767 * If the native function changed the pointer, then free
5768 * the original structure plus the new pointer.
5770 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5771 mono_mb_emit_ldloc (mb, conv_arg);
5772 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5774 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5775 g_assert (m->orig_conv_args [argnum]);
5777 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5780 mono_mb_emit_ldloc (mb, conv_arg);
5781 mono_mb_emit_icall (mb, mono_marshal_free);
5783 mono_mb_patch_branch (mb, pos2);
5787 /* Free the original structure passed to native code */
5788 emit_struct_free (mb, klass, conv_arg);
5790 mono_mb_patch_branch (mb, pos);
5793 case MARSHAL_ACTION_PUSH:
5795 mono_mb_emit_ldloc_addr (mb, conv_arg);
5797 mono_mb_emit_ldloc (mb, conv_arg);
5800 case MARSHAL_ACTION_CONV_RESULT:
5801 if (klass->delegate) {
5802 g_assert (!t->byref);
5803 mono_mb_emit_stloc (mb, 0);
5804 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5805 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5806 mono_mb_emit_ldloc (mb, 0);
5807 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5808 mono_mb_emit_stloc (mb, 3);
5811 mono_mb_emit_stloc (mb, 0);
5813 /* Make a copy since emit_conv modifies local 0 */
5814 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5815 mono_mb_emit_ldloc (mb, 0);
5816 mono_mb_emit_stloc (mb, loc);
5818 mono_mb_emit_byte (mb, CEE_LDNULL);
5819 mono_mb_emit_stloc (mb, 3);
5821 mono_mb_emit_ldloc (mb, 0);
5822 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5824 /* allocate result object */
5826 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5827 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5828 mono_mb_emit_stloc (mb, 3);
5832 mono_mb_emit_ldloc (mb, 3);
5833 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5834 mono_mb_emit_stloc (mb, 1);
5836 /* emit conversion code */
5837 emit_struct_conv (mb, klass, TRUE);
5839 emit_struct_free (mb, klass, loc);
5841 /* Free the pointer allocated by unmanaged code */
5842 mono_mb_emit_ldloc (mb, loc);
5843 mono_mb_emit_icall (mb, mono_marshal_free);
5844 mono_mb_patch_branch (mb, pos);
5848 case MARSHAL_ACTION_MANAGED_CONV_IN:
5849 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5851 if (klass->delegate) {
5852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5853 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5854 mono_mb_emit_ldarg (mb, argnum);
5856 mono_mb_emit_byte (mb, CEE_LDIND_I);
5857 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5858 mono_mb_emit_stloc (mb, conv_arg);
5862 if (klass == mono_defaults.stringbuilder_class) {
5863 MonoMarshalNative encoding;
5865 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5868 g_assert (encoding == MONO_NATIVE_LPSTR);
5870 g_assert (!t->byref);
5871 g_assert (encoding != -1);
5873 mono_mb_emit_ldarg (mb, argnum);
5874 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5875 mono_mb_emit_stloc (mb, conv_arg);
5879 /* The class can not have an automatic layout */
5880 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5881 mono_mb_emit_auto_layout_exception (mb, klass);
5885 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5886 mono_mb_emit_byte (mb, CEE_LDNULL);
5887 mono_mb_emit_stloc (mb, conv_arg);
5892 mono_mb_emit_ldarg (mb, argnum);
5896 /* Check for NULL and raise an exception */
5897 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5899 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5901 mono_mb_patch_branch (mb, pos2);
5902 mono_mb_emit_ldarg (mb, argnum);
5903 mono_mb_emit_byte (mb, CEE_LDIND_I);
5906 mono_mb_emit_stloc (mb, 0);
5908 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5909 mono_mb_emit_stloc (mb, conv_arg);
5911 mono_mb_emit_ldloc (mb, 0);
5912 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5914 /* Create and set dst */
5915 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5916 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5917 mono_mb_emit_stloc (mb, conv_arg);
5918 mono_mb_emit_ldloc (mb, conv_arg);
5919 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5920 mono_mb_emit_stloc (mb, 1);
5922 /* emit valuetype conversion code */
5923 emit_struct_conv (mb, klass, TRUE);
5925 mono_mb_patch_branch (mb, pos);
5928 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5929 if (klass->delegate) {
5932 mono_mb_emit_ldarg (mb, argnum);
5933 mono_mb_emit_ldloc (mb, conv_arg);
5934 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5935 mono_mb_emit_byte (mb, stind_op);
5941 /* Check for null */
5942 mono_mb_emit_ldloc (mb, conv_arg);
5943 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5944 mono_mb_emit_ldarg (mb, argnum);
5945 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5946 mono_mb_emit_byte (mb, CEE_STIND_REF);
5947 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5949 mono_mb_patch_branch (mb, pos);
5952 mono_mb_emit_ldloc (mb, conv_arg);
5953 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5954 mono_mb_emit_stloc (mb, 0);
5956 /* Allocate and set dest */
5957 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5958 mono_mb_emit_byte (mb, CEE_CONV_I);
5959 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5960 mono_mb_emit_stloc (mb, 1);
5962 /* Update argument pointer */
5963 mono_mb_emit_ldarg (mb, argnum);
5964 mono_mb_emit_ldloc (mb, 1);
5965 mono_mb_emit_byte (mb, CEE_STIND_I);
5967 /* emit valuetype conversion code */
5968 emit_struct_conv (mb, klass, FALSE);
5970 mono_mb_patch_branch (mb, pos2);
5971 } else if (klass == mono_defaults.stringbuilder_class) {
5972 // FIXME: What to do here ?
5974 /* byval [Out] marshalling */
5976 /* FIXME: Handle null */
5979 mono_mb_emit_ldloc (mb, conv_arg);
5980 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5981 mono_mb_emit_stloc (mb, 0);
5984 mono_mb_emit_ldarg (mb, argnum);
5985 mono_mb_emit_stloc (mb, 1);
5987 /* emit valuetype conversion code */
5988 emit_struct_conv (mb, klass, FALSE);
5992 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5993 if (klass->delegate) {
5994 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5995 mono_mb_emit_stloc (mb, 3);
5999 /* The class can not have an automatic layout */
6000 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6001 mono_mb_emit_auto_layout_exception (mb, klass);
6005 mono_mb_emit_stloc (mb, 0);
6006 /* Check for null */
6007 mono_mb_emit_ldloc (mb, 0);
6008 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6009 mono_mb_emit_byte (mb, CEE_LDNULL);
6010 mono_mb_emit_stloc (mb, 3);
6011 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6013 mono_mb_patch_branch (mb, pos);
6016 mono_mb_emit_ldloc (mb, 0);
6017 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6018 mono_mb_emit_stloc (mb, 0);
6020 /* Allocate and set dest */
6021 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6022 mono_mb_emit_byte (mb, CEE_CONV_I);
6023 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6024 mono_mb_emit_byte (mb, CEE_DUP);
6025 mono_mb_emit_stloc (mb, 1);
6026 mono_mb_emit_stloc (mb, 3);
6028 emit_struct_conv (mb, klass, FALSE);
6030 mono_mb_patch_branch (mb, pos2);
6034 g_assert_not_reached ();
6045 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6046 MonoMarshalSpec *spec,
6047 int conv_arg, MonoType **conv_arg_type,
6048 MarshalAction action)
6050 MonoMethodBuilder *mb = m->mb;
6051 static MonoMethod *get_object_for_native_variant = NULL;
6052 static MonoMethod *get_native_variant_for_object = NULL;
6054 if (!get_object_for_native_variant)
6055 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6056 g_assert (get_object_for_native_variant);
6058 if (!get_native_variant_for_object)
6059 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6060 g_assert (get_native_variant_for_object);
6063 case MARSHAL_ACTION_CONV_IN: {
6064 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6067 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6069 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6071 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6074 mono_mb_emit_ldarg (mb, argnum);
6076 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6077 mono_mb_emit_ldloc_addr (mb, conv_arg);
6078 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6082 case MARSHAL_ACTION_CONV_OUT: {
6083 static MonoMethod *variant_clear = NULL;
6086 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6087 g_assert (variant_clear);
6090 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6091 mono_mb_emit_ldarg (mb, argnum);
6092 mono_mb_emit_ldloc_addr (mb, conv_arg);
6093 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6094 mono_mb_emit_byte (mb, CEE_STIND_REF);
6097 mono_mb_emit_ldloc_addr (mb, conv_arg);
6098 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6102 case MARSHAL_ACTION_PUSH:
6104 mono_mb_emit_ldloc_addr (mb, conv_arg);
6106 mono_mb_emit_ldloc (mb, conv_arg);
6109 case MARSHAL_ACTION_CONV_RESULT: {
6110 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6111 mono_mb_emit_exception_marshal_directive (mb, msg);
6115 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6116 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6119 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6121 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6123 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6127 mono_mb_emit_ldarg (mb, argnum);
6129 mono_mb_emit_ldarg_addr (mb, argnum);
6130 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6131 mono_mb_emit_stloc (mb, conv_arg);
6135 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6136 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6137 mono_mb_emit_ldloc (mb, conv_arg);
6138 mono_mb_emit_ldarg (mb, argnum);
6139 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6144 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6145 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6146 mono_mb_emit_exception_marshal_directive (mb, msg);
6151 g_assert_not_reached ();
6157 #endif /* DISABLE_COM */
6158 #endif /* DISABLE_JIT */
6161 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6163 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6164 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6166 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6168 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6180 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6181 MonoMarshalSpec *spec,
6182 int conv_arg, MonoType **conv_arg_type,
6183 MarshalAction action)
6187 case MARSHAL_ACTION_CONV_IN:
6188 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6190 case MARSHAL_ACTION_MANAGED_CONV_IN:
6191 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6195 MonoMethodBuilder *mb = m->mb;
6196 MonoClass *klass = mono_class_from_mono_type (t);
6197 gboolean need_convert, need_free;
6198 MonoMarshalNative encoding;
6200 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6203 case MARSHAL_ACTION_CONV_IN:
6204 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6205 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6207 if (klass->element_class->blittable) {
6208 mono_mb_emit_ldarg (mb, argnum);
6210 mono_mb_emit_byte (mb, CEE_LDIND_I);
6211 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6212 mono_mb_emit_stloc (mb, conv_arg);
6215 guint32 label1, label2, label3;
6216 int index_var, src_var, dest_ptr, esize;
6217 MonoMarshalConv conv;
6218 gboolean is_string = FALSE;
6220 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6222 eklass = klass->element_class;
6224 if (eklass == mono_defaults.string_class) {
6226 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6228 else if (eklass == mono_defaults.stringbuilder_class) {
6230 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6233 conv = MONO_MARSHAL_CONV_INVALID;
6235 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6236 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6237 mono_mb_emit_exception_marshal_directive (mb, msg);
6241 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6242 mono_mb_emit_ldarg (mb, argnum);
6244 mono_mb_emit_byte (mb, CEE_LDIND_I);
6245 mono_mb_emit_stloc (mb, src_var);
6248 mono_mb_emit_ldloc (mb, src_var);
6249 mono_mb_emit_stloc (mb, conv_arg);
6250 mono_mb_emit_ldloc (mb, src_var);
6251 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6254 esize = sizeof (gpointer);
6255 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6256 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6258 esize = mono_class_native_size (eklass, NULL);
6260 /* allocate space for the native struct and store the address */
6261 mono_mb_emit_icon (mb, esize);
6262 mono_mb_emit_ldloc (mb, src_var);
6263 mono_mb_emit_byte (mb, CEE_LDLEN);
6265 if (eklass == mono_defaults.string_class) {
6266 /* Make the array bigger for the terminating null */
6267 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6268 mono_mb_emit_byte (mb, CEE_ADD);
6270 mono_mb_emit_byte (mb, CEE_MUL);
6271 mono_mb_emit_byte (mb, CEE_PREFIX1);
6272 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6273 mono_mb_emit_stloc (mb, conv_arg);
6275 mono_mb_emit_ldloc (mb, conv_arg);
6276 mono_mb_emit_stloc (mb, dest_ptr);
6278 /* Emit marshalling loop */
6279 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6280 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6281 mono_mb_emit_stloc (mb, index_var);
6282 label2 = mono_mb_get_label (mb);
6283 mono_mb_emit_ldloc (mb, index_var);
6284 mono_mb_emit_ldloc (mb, src_var);
6285 mono_mb_emit_byte (mb, CEE_LDLEN);
6286 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6288 /* Emit marshalling code */
6292 mono_mb_emit_ldloc (mb, dest_ptr);
6293 mono_mb_emit_ldloc (mb, src_var);
6294 mono_mb_emit_ldloc (mb, index_var);
6295 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6296 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6297 mono_mb_emit_byte (mb, stind_op);
6299 /* set the src_ptr */
6300 mono_mb_emit_ldloc (mb, src_var);
6301 mono_mb_emit_ldloc (mb, index_var);
6302 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6303 mono_mb_emit_stloc (mb, 0);
6306 mono_mb_emit_ldloc (mb, dest_ptr);
6307 mono_mb_emit_stloc (mb, 1);
6309 /* emit valuetype conversion code */
6310 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6313 mono_mb_emit_add_to_local (mb, index_var, 1);
6314 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6316 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6318 mono_mb_patch_branch (mb, label3);
6320 if (eklass == mono_defaults.string_class) {
6321 /* Null terminate */
6322 mono_mb_emit_ldloc (mb, dest_ptr);
6323 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6324 mono_mb_emit_byte (mb, CEE_STIND_REF);
6327 mono_mb_patch_branch (mb, label1);
6332 case MARSHAL_ACTION_CONV_OUT:
6333 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6334 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);
6335 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6338 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6339 int param_num = spec->data.array_data.param_num;
6340 MonoType *param_type;
6342 param_type = m->sig->params [param_num];
6344 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6345 char *msg = g_strdup ("Not implemented.");
6346 mono_mb_emit_exception_marshal_directive (mb, msg);
6351 mono_mb_emit_ldarg (mb, argnum);
6353 /* Create the managed array */
6354 mono_mb_emit_ldarg (mb, param_num);
6355 if (m->sig->params [param_num]->byref)
6356 // FIXME: Support other types
6357 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6358 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6359 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6360 /* Store into argument */
6361 mono_mb_emit_byte (mb, CEE_STIND_REF);
6365 if (need_convert || need_free) {
6366 /* FIXME: Optimize blittable case */
6368 guint32 label1, label2, label3;
6369 int index_var, src_ptr, loc, esize;
6371 eklass = klass->element_class;
6372 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6373 esize = sizeof (gpointer);
6374 else if (eklass == mono_defaults.char_class)
6375 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6377 esize = mono_class_native_size (eklass, NULL);
6378 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6379 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6382 mono_mb_emit_ldarg (mb, argnum);
6384 mono_mb_emit_byte (mb, CEE_LDIND_I);
6385 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6387 mono_mb_emit_ldloc (mb, conv_arg);
6388 mono_mb_emit_stloc (mb, src_ptr);
6390 /* Emit marshalling loop */
6391 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6392 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6393 mono_mb_emit_stloc (mb, index_var);
6394 label2 = mono_mb_get_label (mb);
6395 mono_mb_emit_ldloc (mb, index_var);
6396 mono_mb_emit_ldarg (mb, argnum);
6398 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6399 mono_mb_emit_byte (mb, CEE_LDLEN);
6400 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6402 /* Emit marshalling code */
6404 if (eklass == mono_defaults.stringbuilder_class) {
6405 gboolean need_free2;
6406 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6408 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6411 mono_mb_emit_ldarg (mb, argnum);
6413 mono_mb_emit_byte (mb, CEE_LDIND_I);
6414 mono_mb_emit_ldloc (mb, index_var);
6415 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6418 mono_mb_emit_ldloc (mb, src_ptr);
6419 mono_mb_emit_byte (mb, CEE_LDIND_I);
6421 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6425 mono_mb_emit_ldloc (mb, src_ptr);
6426 mono_mb_emit_byte (mb, CEE_LDIND_I);
6428 mono_mb_emit_icall (mb, mono_marshal_free);
6431 else if (eklass == mono_defaults.string_class) {
6434 mono_mb_emit_ldloc (mb, src_ptr);
6435 mono_mb_emit_byte (mb, CEE_LDIND_I);
6437 mono_mb_emit_icall (mb, mono_marshal_free);
6442 /* set the src_ptr */
6443 mono_mb_emit_ldloc (mb, src_ptr);
6444 mono_mb_emit_stloc (mb, 0);
6447 mono_mb_emit_ldarg (mb, argnum);
6449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6450 mono_mb_emit_ldloc (mb, index_var);
6451 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6452 mono_mb_emit_stloc (mb, 1);
6454 /* emit valuetype conversion code */
6455 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6459 mono_mb_emit_ldloc (mb, src_ptr);
6460 mono_mb_emit_stloc (mb, loc);
6461 mono_mb_emit_ldloc (mb, loc);
6463 emit_struct_free (mb, eklass, loc);
6467 mono_mb_emit_add_to_local (mb, index_var, 1);
6468 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6470 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6472 mono_mb_patch_branch (mb, label1);
6473 mono_mb_patch_branch (mb, label3);
6476 if (klass->element_class->blittable) {
6477 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6479 mono_mb_emit_ldarg (mb, argnum);
6481 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6482 mono_mb_emit_ldloc (mb, conv_arg);
6483 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6488 case MARSHAL_ACTION_PUSH:
6490 mono_mb_emit_ldloc_addr (mb, conv_arg);
6492 mono_mb_emit_ldloc (mb, conv_arg);
6495 case MARSHAL_ACTION_CONV_RESULT:
6496 /* fixme: we need conversions here */
6497 mono_mb_emit_stloc (mb, 3);
6500 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6502 guint32 label1, label2, label3;
6503 int index_var, src_ptr, esize, param_num, num_elem;
6504 MonoMarshalConv conv;
6505 gboolean is_string = FALSE;
6507 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6508 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6511 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6512 mono_mb_emit_exception_marshal_directive (mb, msg);
6516 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6517 mono_mb_emit_exception_marshal_directive (mb, msg);
6520 if (spec->native != MONO_NATIVE_LPARRAY) {
6521 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6522 mono_mb_emit_exception_marshal_directive (mb, msg);
6526 /* FIXME: t is from the method which is wrapped, not the delegate type */
6527 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6529 param_num = spec->data.array_data.param_num;
6530 num_elem = spec->data.array_data.num_elem;
6531 if (spec->data.array_data.elem_mult == 0)
6532 /* param_num is not specified */
6535 if (param_num == -1) {
6536 if (num_elem <= 0) {
6537 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6538 mono_mb_emit_exception_marshal_directive (mb, msg);
6543 /* FIXME: Optimize blittable case */
6545 eklass = klass->element_class;
6546 if (eklass == mono_defaults.string_class) {
6548 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6550 else if (eklass == mono_defaults.stringbuilder_class) {
6552 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6555 conv = MONO_MARSHAL_CONV_INVALID;
6557 mono_marshal_load_type_info (eklass);
6560 esize = sizeof (gpointer);
6562 esize = mono_class_native_size (eklass, NULL);
6563 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6565 mono_mb_emit_byte (mb, CEE_LDNULL);
6566 mono_mb_emit_stloc (mb, conv_arg);
6568 /* Check param index */
6569 if (param_num != -1) {
6570 if (param_num >= m->sig->param_count) {
6571 char *msg = g_strdup ("Array size control parameter index is out of range.");
6572 mono_mb_emit_exception_marshal_directive (mb, msg);
6575 switch (m->sig->params [param_num]->type) {
6588 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6589 mono_mb_emit_exception_marshal_directive (mb, msg);
6596 mono_mb_emit_ldarg (mb, argnum);
6597 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6599 mono_mb_emit_ldarg (mb, argnum);
6600 mono_mb_emit_stloc (mb, src_ptr);
6602 /* Create managed array */
6604 * The LPArray marshalling spec says that sometimes param_num starts
6605 * from 1, sometimes it starts from 0. But MS seems to allways start
6609 if (param_num == -1) {
6610 mono_mb_emit_icon (mb, num_elem);
6612 mono_mb_emit_ldarg (mb, param_num);
6614 mono_mb_emit_icon (mb, num_elem);
6615 mono_mb_emit_byte (mb, CEE_ADD);
6617 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6620 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6621 mono_mb_emit_stloc (mb, conv_arg);
6623 if (eklass->blittable) {
6624 mono_mb_emit_ldloc (mb, conv_arg);
6625 mono_mb_emit_byte (mb, CEE_CONV_I);
6626 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6627 mono_mb_emit_byte (mb, CEE_ADD);
6628 mono_mb_emit_ldarg (mb, argnum);
6629 mono_mb_emit_ldloc (mb, conv_arg);
6630 mono_mb_emit_byte (mb, CEE_LDLEN);
6631 mono_mb_emit_icon (mb, esize);
6632 mono_mb_emit_byte (mb, CEE_MUL);
6633 mono_mb_emit_byte (mb, CEE_PREFIX1);
6634 mono_mb_emit_byte (mb, CEE_CPBLK);
6638 /* Emit marshalling loop */
6639 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6640 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6641 mono_mb_emit_stloc (mb, index_var);
6642 label2 = mono_mb_get_label (mb);
6643 mono_mb_emit_ldloc (mb, index_var);
6644 mono_mb_emit_ldloc (mb, conv_arg);
6645 mono_mb_emit_byte (mb, CEE_LDLEN);
6646 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6648 /* Emit marshalling code */
6650 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6652 mono_mb_emit_ldloc (mb, conv_arg);
6653 mono_mb_emit_ldloc (mb, index_var);
6655 mono_mb_emit_ldloc (mb, src_ptr);
6656 mono_mb_emit_byte (mb, CEE_LDIND_I);
6658 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6659 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6662 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6663 mono_mb_emit_exception_marshal_directive (mb, msg);
6667 mono_mb_emit_add_to_local (mb, index_var, 1);
6668 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6670 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6672 mono_mb_patch_branch (mb, label1);
6673 mono_mb_patch_branch (mb, label3);
6677 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6679 guint32 label1, label2, label3;
6680 int index_var, dest_ptr, esize, param_num, num_elem;
6681 MonoMarshalConv conv;
6682 gboolean is_string = FALSE;
6685 /* Already handled in CONV_IN */
6688 /* These are already checked in CONV_IN */
6689 g_assert (!t->byref);
6690 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6691 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6693 param_num = spec->data.array_data.param_num;
6694 num_elem = spec->data.array_data.num_elem;
6696 if (spec->data.array_data.elem_mult == 0)
6697 /* param_num is not specified */
6700 if (param_num == -1) {
6701 if (num_elem <= 0) {
6702 g_assert_not_reached ();
6706 /* FIXME: Optimize blittable case */
6708 eklass = klass->element_class;
6709 if (eklass == mono_defaults.string_class) {
6711 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6713 else if (eklass == mono_defaults.stringbuilder_class) {
6715 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6718 conv = MONO_MARSHAL_CONV_INVALID;
6720 mono_marshal_load_type_info (eklass);
6723 esize = sizeof (gpointer);
6725 esize = mono_class_native_size (eklass, NULL);
6727 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6730 mono_mb_emit_ldloc (mb, conv_arg);
6731 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6733 mono_mb_emit_ldarg (mb, argnum);
6734 mono_mb_emit_stloc (mb, dest_ptr);
6736 if (eklass->blittable) {
6738 mono_mb_emit_ldarg (mb, argnum);
6740 mono_mb_emit_ldloc (mb, conv_arg);
6741 mono_mb_emit_byte (mb, CEE_CONV_I);
6742 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6743 mono_mb_emit_byte (mb, CEE_ADD);
6745 mono_mb_emit_ldloc (mb, conv_arg);
6746 mono_mb_emit_byte (mb, CEE_LDLEN);
6747 mono_mb_emit_icon (mb, esize);
6748 mono_mb_emit_byte (mb, CEE_MUL);
6749 mono_mb_emit_byte (mb, CEE_PREFIX1);
6750 mono_mb_emit_byte (mb, CEE_CPBLK);
6754 /* Emit marshalling loop */
6755 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6756 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6757 mono_mb_emit_stloc (mb, index_var);
6758 label2 = mono_mb_get_label (mb);
6759 mono_mb_emit_ldloc (mb, index_var);
6760 mono_mb_emit_ldloc (mb, conv_arg);
6761 mono_mb_emit_byte (mb, CEE_LDLEN);
6762 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6764 /* Emit marshalling code */
6767 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6770 mono_mb_emit_ldloc (mb, dest_ptr);
6773 mono_mb_emit_ldloc (mb, conv_arg);
6774 mono_mb_emit_ldloc (mb, index_var);
6776 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6778 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6779 mono_mb_emit_byte (mb, stind_op);
6782 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6783 mono_mb_emit_exception_marshal_directive (mb, msg);
6787 mono_mb_emit_add_to_local (mb, index_var, 1);
6788 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6790 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6792 mono_mb_patch_branch (mb, label1);
6793 mono_mb_patch_branch (mb, label3);
6797 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6799 guint32 label1, label2, label3;
6800 int index_var, src, dest, esize;
6801 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6802 gboolean is_string = FALSE;
6804 g_assert (!t->byref);
6806 eklass = klass->element_class;
6808 mono_marshal_load_type_info (eklass);
6810 if (eklass == mono_defaults.string_class) {
6812 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6815 g_assert_not_reached ();
6819 esize = sizeof (gpointer);
6820 else if (eklass == mono_defaults.char_class)
6821 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6823 esize = mono_class_native_size (eklass, NULL);
6825 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6826 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6828 mono_mb_emit_stloc (mb, src);
6829 mono_mb_emit_ldloc (mb, src);
6830 mono_mb_emit_stloc (mb, 3);
6832 /* Check for null */
6833 mono_mb_emit_ldloc (mb, src);
6834 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6836 /* Allocate native array */
6837 mono_mb_emit_icon (mb, esize);
6838 mono_mb_emit_ldloc (mb, src);
6839 mono_mb_emit_byte (mb, CEE_LDLEN);
6841 if (eklass == mono_defaults.string_class) {
6842 /* Make the array bigger for the terminating null */
6843 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6844 mono_mb_emit_byte (mb, CEE_ADD);
6846 mono_mb_emit_byte (mb, CEE_MUL);
6847 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6848 mono_mb_emit_stloc (mb, dest);
6849 mono_mb_emit_ldloc (mb, dest);
6850 mono_mb_emit_stloc (mb, 3);
6852 /* Emit marshalling loop */
6853 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6854 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6855 mono_mb_emit_stloc (mb, index_var);
6856 label2 = mono_mb_get_label (mb);
6857 mono_mb_emit_ldloc (mb, index_var);
6858 mono_mb_emit_ldloc (mb, src);
6859 mono_mb_emit_byte (mb, CEE_LDLEN);
6860 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6862 /* Emit marshalling code */
6865 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6868 mono_mb_emit_ldloc (mb, dest);
6871 mono_mb_emit_ldloc (mb, src);
6872 mono_mb_emit_ldloc (mb, index_var);
6874 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6876 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6877 mono_mb_emit_byte (mb, stind_op);
6880 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6881 mono_mb_emit_exception_marshal_directive (mb, msg);
6885 mono_mb_emit_add_to_local (mb, index_var, 1);
6886 mono_mb_emit_add_to_local (mb, dest, esize);
6888 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6890 mono_mb_patch_branch (mb, label3);
6891 mono_mb_patch_branch (mb, label1);
6895 g_assert_not_reached ();
6902 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6905 return &mono_defaults.int32_class->byval_arg;
6907 switch (spec->native) {
6908 case MONO_NATIVE_I1:
6909 case MONO_NATIVE_U1:
6910 return &mono_defaults.byte_class->byval_arg;
6911 case MONO_NATIVE_VARIANTBOOL:
6912 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6913 return &mono_defaults.int16_class->byval_arg;
6914 case MONO_NATIVE_BOOLEAN:
6915 return &mono_defaults.int32_class->byval_arg;
6917 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6918 return &mono_defaults.int32_class->byval_arg;
6924 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6926 MonoClass* conv_arg_class = mono_defaults.int32_class;
6928 switch (spec->native) {
6929 case MONO_NATIVE_I1:
6930 case MONO_NATIVE_U1:
6931 conv_arg_class = mono_defaults.byte_class;
6932 if (ldop) *ldop = CEE_LDIND_I1;
6934 case MONO_NATIVE_VARIANTBOOL:
6935 conv_arg_class = mono_defaults.int16_class;
6936 if (ldop) *ldop = CEE_LDIND_I2;
6938 case MONO_NATIVE_BOOLEAN:
6941 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6944 return conv_arg_class;
6948 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6949 MonoMarshalSpec *spec,
6950 int conv_arg, MonoType **conv_arg_type,
6951 MarshalAction action)
6955 case MARSHAL_ACTION_CONV_IN:
6957 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6959 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6962 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6963 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6965 *conv_arg_type = &conv_arg_class->this_arg;
6967 *conv_arg_type = &conv_arg_class->byval_arg;
6973 MonoMethodBuilder *mb = m->mb;
6976 case MARSHAL_ACTION_CONV_IN: {
6977 MonoType *local_type;
6979 guint8 ldc_op = CEE_LDC_I4_1;
6981 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6983 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6985 *conv_arg_type = local_type;
6986 conv_arg = mono_mb_add_local (mb, local_type);
6988 mono_mb_emit_ldarg (mb, argnum);
6990 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6991 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6992 mono_mb_emit_byte (mb, ldc_op);
6993 mono_mb_emit_stloc (mb, conv_arg);
6994 mono_mb_patch_branch (mb, label_false);
6999 case MARSHAL_ACTION_CONV_OUT:
7001 int label_false, label_end;
7005 mono_mb_emit_ldarg (mb, argnum);
7006 mono_mb_emit_ldloc (mb, conv_arg);
7008 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7009 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7011 label_end = mono_mb_emit_branch (mb, CEE_BR);
7012 mono_mb_patch_branch (mb, label_false);
7013 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7014 mono_mb_patch_branch (mb, label_end);
7016 mono_mb_emit_byte (mb, CEE_STIND_I1);
7020 case MARSHAL_ACTION_PUSH:
7022 mono_mb_emit_ldloc_addr (mb, conv_arg);
7024 mono_mb_emit_ldloc (mb, conv_arg);
7026 mono_mb_emit_ldarg (mb, argnum);
7029 case MARSHAL_ACTION_CONV_RESULT:
7030 /* maybe we need to make sure that it fits within 8 bits */
7031 mono_mb_emit_stloc (mb, 3);
7034 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7035 MonoClass* conv_arg_class = mono_defaults.int32_class;
7036 guint8 ldop = CEE_LDIND_I4;
7037 int label_null, label_false;
7039 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7040 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7043 *conv_arg_type = &conv_arg_class->this_arg;
7045 *conv_arg_type = &conv_arg_class->byval_arg;
7048 mono_mb_emit_ldarg (mb, argnum);
7052 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7053 mono_mb_emit_ldarg (mb, argnum);
7054 mono_mb_emit_byte (mb, ldop);
7058 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7059 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7060 mono_mb_emit_stloc (mb, conv_arg);
7061 mono_mb_patch_branch (mb, label_false);
7064 mono_mb_patch_branch (mb, label_null);
7068 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7069 guint8 stop = CEE_STIND_I4;
7070 guint8 ldc_op = CEE_LDC_I4_1;
7071 int label_null,label_false, label_end;;
7076 switch (spec->native) {
7077 case MONO_NATIVE_I1:
7078 case MONO_NATIVE_U1:
7079 stop = CEE_STIND_I1;
7081 case MONO_NATIVE_VARIANTBOOL:
7082 stop = CEE_STIND_I2;
7083 ldc_op = CEE_LDC_I4_M1;
7091 mono_mb_emit_ldarg (mb, argnum);
7092 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7094 mono_mb_emit_ldarg (mb, argnum);
7095 mono_mb_emit_ldloc (mb, conv_arg);
7097 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7098 mono_mb_emit_byte (mb, ldc_op);
7099 label_end = mono_mb_emit_branch (mb, CEE_BR);
7101 mono_mb_patch_branch (mb, label_false);
7102 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7103 mono_mb_patch_branch (mb, label_end);
7105 mono_mb_emit_byte (mb, stop);
7106 mono_mb_patch_branch (mb, label_null);
7111 g_assert_not_reached ();
7118 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7119 MonoMarshalSpec *spec, int conv_arg,
7120 MonoType **conv_arg_type, MarshalAction action)
7123 MonoMethodBuilder *mb = m->mb;
7126 case MARSHAL_ACTION_CONV_IN:
7127 /* MS seems to allow this in some cases, ie. bxc #158 */
7129 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7130 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7131 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7136 case MARSHAL_ACTION_PUSH:
7137 mono_mb_emit_ldarg (mb, argnum);
7140 case MARSHAL_ACTION_CONV_RESULT:
7141 /* no conversions necessary */
7142 mono_mb_emit_stloc (mb, 3);
7153 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7154 MonoMarshalSpec *spec, int conv_arg,
7155 MonoType **conv_arg_type, MarshalAction action)
7158 MonoMethodBuilder *mb = m->mb;
7161 case MARSHAL_ACTION_PUSH:
7162 /* fixme: dont know how to marshal that. We cant simply
7163 * convert it to a one byte UTF8 character, because an
7164 * unicode character may need more that one byte in UTF8 */
7165 mono_mb_emit_ldarg (mb, argnum);
7168 case MARSHAL_ACTION_CONV_RESULT:
7169 /* fixme: we need conversions here */
7170 mono_mb_emit_stloc (mb, 3);
7181 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7182 MonoMarshalSpec *spec, int conv_arg,
7183 MonoType **conv_arg_type, MarshalAction action)
7186 MonoMethodBuilder *mb = m->mb;
7189 case MARSHAL_ACTION_PUSH:
7190 mono_mb_emit_ldarg (mb, argnum);
7193 case MARSHAL_ACTION_CONV_RESULT:
7194 /* no conversions necessary */
7195 mono_mb_emit_stloc (mb, 3);
7206 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7207 MonoMarshalSpec *spec, int conv_arg,
7208 MonoType **conv_arg_type, MarshalAction action)
7210 /* Ensure that we have marshalling info for this param */
7211 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7213 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7214 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7216 if (spec && spec->native == MONO_NATIVE_ASANY)
7217 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7220 case MONO_TYPE_VALUETYPE:
7221 if (t->data.klass == mono_defaults.handleref_class)
7222 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7224 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7225 case MONO_TYPE_STRING:
7226 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7227 case MONO_TYPE_CLASS:
7228 case MONO_TYPE_OBJECT:
7229 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7230 if (spec && spec->native == MONO_NATIVE_STRUCT)
7231 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7234 #if !defined(DISABLE_COM)
7235 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7236 spec->native == MONO_NATIVE_IDISPATCH ||
7237 spec->native == MONO_NATIVE_INTERFACE))
7238 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7239 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7240 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7241 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7242 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7245 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7246 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7247 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7249 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7250 case MONO_TYPE_ARRAY:
7251 case MONO_TYPE_SZARRAY:
7252 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7253 case MONO_TYPE_BOOLEAN:
7254 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7256 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7257 case MONO_TYPE_CHAR:
7258 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7271 case MONO_TYPE_FNPTR:
7272 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 case MONO_TYPE_GENERICINST:
7274 if (mono_type_generic_inst_is_valuetype (t))
7275 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7277 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7285 * mono_marshal_emit_native_wrapper:
7286 * @image: the image to use for looking up custom marshallers
7287 * @sig: The signature of the native function
7288 * @piinfo: Marshalling information
7289 * @mspecs: Marshalling information
7290 * @aot: whenever the created method will be compiled by the AOT compiler
7291 * @method: if non-NULL, the pinvoke method to call
7292 * @check_exceptions: Whenever to check for pending exceptions after the native call
7293 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7295 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7298 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)
7300 EmitMarshalContext m;
7301 MonoMethodSignature *csig;
7303 int i, argnum, *tmp_locals;
7304 int type, param_shift = 0;
7305 static MonoMethodSignature *get_last_error_sig = NULL;
7306 int coop_gc_stack_dummy, coop_gc_var;
7308 memset (&m, 0, sizeof (m));
7313 /* we copy the signature, so that we can set pinvoke to 0 */
7315 /* The function address is passed as the first argument */
7316 g_assert (!sig->hasthis);
7319 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7327 /* we allocate local for use with emit_struct_conv() */
7328 /* allocate local 0 (pointer) src_ptr */
7329 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7330 /* allocate local 1 (pointer) dst_ptr */
7331 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7332 /* allocate local 2 (boolean) delete_old */
7333 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7335 /* delete_old = FALSE */
7336 mono_mb_emit_icon (mb, 0);
7337 mono_mb_emit_stloc (mb, 2);
7339 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7340 /* allocate local 3 to store the return value */
7341 mono_mb_add_local (mb, sig->ret);
7344 if (mono_threads_is_coop_enabled ()) {
7345 /* local 4, dummy local used to get a stack address for suspend funcs */
7346 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7347 /* local 5, the local to be used when calling the suspend funcs */
7348 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7352 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7354 * ret = method (...);
7356 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7363 if (MONO_TYPE_ISSTRUCT (sig->ret))
7364 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7366 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7367 /* Return type custom marshaling */
7369 * Since we can't determine the return type of the unmanaged function,
7370 * we assume it returns a pointer, and pass that pointer to
7371 * MarshalNativeToManaged.
7373 csig->ret = &mono_defaults.int_class->byval_arg;
7376 /* we first do all conversions */
7377 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7378 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7380 for (i = 0; i < sig->param_count; i ++) {
7381 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7384 // In coop mode need to register blocking state during native call
7385 if (mono_threads_is_coop_enabled ()) {
7386 // Perform an extra, early lookup of the function address, so any exceptions
7387 // potentially resulting from the lookup occur before entering blocking mode.
7388 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7389 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7390 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7391 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7394 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7395 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7396 mono_mb_emit_stloc (mb, coop_gc_var);
7399 /* push all arguments */
7402 mono_mb_emit_byte (mb, CEE_LDARG_0);
7404 for (i = 0; i < sig->param_count; i++) {
7405 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7408 /* call the native method */
7410 mono_mb_emit_byte (mb, CEE_LDARG_0);
7411 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7412 mono_mb_emit_byte (mb, CEE_LDIND_I);
7413 mono_mb_emit_calli (mb, csig);
7414 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7416 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7418 g_assert_not_reached ();
7422 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7423 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7424 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7425 mono_mb_emit_calli (mb, csig);
7427 mono_mb_emit_native_call (mb, csig, func);
7431 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7432 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7433 mono_class_init (klass);
7434 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7435 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7436 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7437 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7438 mono_mb_emit_stloc (mb, m.vtaddr_var);
7442 /* Unblock before converting the result, since that can involve calls into the runtime */
7443 if (mono_threads_is_coop_enabled ()) {
7444 mono_mb_emit_ldloc (mb, coop_gc_var);
7445 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7446 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7449 /* Set LastError if needed */
7450 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7451 if (!get_last_error_sig) {
7452 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7453 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7454 get_last_error_sig->pinvoke = 1;
7459 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7460 * clobber its value.
7462 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7463 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7465 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7469 /* convert the result */
7470 if (!sig->ret->byref) {
7471 MonoMarshalSpec *spec = mspecs [0];
7472 type = sig->ret->type;
7474 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7475 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7479 case MONO_TYPE_VOID:
7481 case MONO_TYPE_VALUETYPE:
7482 klass = sig->ret->data.klass;
7483 if (klass->enumtype) {
7484 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7487 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7501 case MONO_TYPE_FNPTR:
7502 case MONO_TYPE_STRING:
7503 case MONO_TYPE_CLASS:
7504 case MONO_TYPE_OBJECT:
7505 case MONO_TYPE_BOOLEAN:
7506 case MONO_TYPE_ARRAY:
7507 case MONO_TYPE_SZARRAY:
7508 case MONO_TYPE_CHAR:
7510 case MONO_TYPE_GENERICINST:
7511 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7513 case MONO_TYPE_TYPEDBYREF:
7515 g_warning ("return type 0x%02x unknown", sig->ret->type);
7516 g_assert_not_reached ();
7520 mono_mb_emit_stloc (mb, 3);
7524 * Need to call this after converting the result since MONO_VTADDR needs
7525 * to be adjacent to the call instruction.
7527 if (check_exceptions)
7528 emit_thread_interrupt_checkpoint (mb);
7530 /* we need to convert byref arguments back and free string arrays */
7531 for (i = 0; i < sig->param_count; i++) {
7532 MonoType *t = sig->params [i];
7533 MonoMarshalSpec *spec = mspecs [i + 1];
7535 argnum = i + param_shift;
7537 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7538 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7543 case MONO_TYPE_STRING:
7544 case MONO_TYPE_VALUETYPE:
7545 case MONO_TYPE_CLASS:
7546 case MONO_TYPE_OBJECT:
7547 case MONO_TYPE_SZARRAY:
7548 case MONO_TYPE_BOOLEAN:
7549 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7556 if (!MONO_TYPE_IS_VOID(sig->ret))
7557 mono_mb_emit_ldloc (mb, 3);
7559 mono_mb_emit_byte (mb, CEE_RET);
7561 #endif /* DISABLE_JIT */
7564 * mono_marshal_get_native_wrapper:
7565 * @method: The MonoMethod to wrap.
7566 * @check_exceptions: Whenever to check for pending exceptions
7568 * generates IL code for the pinvoke wrapper (the generated method
7569 * calls the unmanaged code in piinfo->addr)
7570 * The wrapper info for the wrapper is a WrapperInfo structure.
7573 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7575 MonoMethodSignature *sig, *csig;
7576 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7577 MonoMethodBuilder *mb;
7578 MonoMarshalSpec **mspecs;
7581 gboolean pinvoke = FALSE;
7584 const char *exc_class = "MissingMethodException";
7585 const char *exc_arg = NULL;
7588 g_assert (method != NULL);
7589 g_assert (mono_method_signature (method)->pinvoke);
7591 GHashTable **cache_ptr;
7594 if (check_exceptions)
7595 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7597 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7599 if (check_exceptions)
7600 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7602 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7605 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7607 if ((res = mono_marshal_find_in_cache (cache, method)))
7610 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7611 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7615 return mono_cominterop_get_native_wrapper (method);
7617 g_assert_not_reached ();
7621 sig = mono_method_signature (method);
7623 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7624 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7627 if (!piinfo->addr) {
7629 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7630 exc_arg = "Method contains unsupported native code";
7632 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7634 piinfo->addr = mono_lookup_internal_call (method);
7638 /* hack - redirect certain string constructors to CreateString */
7639 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7640 g_assert (!pinvoke);
7641 g_assert (method->string_ctor);
7642 g_assert (sig->hasthis);
7644 /* CreateString returns a value */
7645 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7646 csig->ret = &mono_defaults.string_class->byval_arg;
7650 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7651 if (!strcmp ("CreateString", res->name) &&
7652 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7655 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7656 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7658 /* create a wrapper to preserve .ctor in stack trace */
7659 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7662 mono_mb_emit_byte (mb, CEE_LDARG_0);
7663 for (i = 1; i <= csig->param_count; i++)
7664 mono_mb_emit_ldarg (mb, i);
7665 mono_mb_emit_managed_call (mb, res, NULL);
7666 mono_mb_emit_byte (mb, CEE_RET);
7669 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7670 info->d.string_ctor.method = method;
7672 /* use native_wrapper_cache because internal calls are looked up there */
7673 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7674 csig->param_count + 1, info, NULL);
7681 /* exception will be thrown */
7682 piinfo->addr = NULL;
7683 g_warning ("cannot find CreateString for .ctor");
7686 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7688 mb->method->save_lmf = 1;
7691 * In AOT mode and embedding scenarios, it is possible that the icall is not
7692 * registered in the runtime doing the AOT compilation.
7694 if (!piinfo->addr && !aot) {
7696 mono_mb_emit_exception (mb, exc_class, exc_arg);
7698 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7699 info->d.managed_to_native.method = method;
7701 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7703 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7704 csig->param_count + 16, info, NULL);
7710 /* internal calls: we simply push all arguments and call the method (no conversions) */
7711 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7713 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7715 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7717 /* hack - string constructors returns a value */
7718 if (method->string_ctor)
7719 csig->ret = &mono_defaults.string_class->byval_arg;
7726 * Add a null check since public icalls can be called with 'call' which
7727 * does no such check.
7729 mono_mb_emit_byte (mb, CEE_LDARG_0);
7730 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7731 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7732 mono_mb_patch_branch (mb, pos);
7734 mono_mb_emit_byte (mb, CEE_LDARG_0);
7737 for (i = 0; i < sig->param_count; i++)
7738 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7741 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7742 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7743 mono_mb_emit_calli (mb, csig);
7745 g_assert (piinfo->addr);
7746 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7748 if (check_exceptions)
7749 emit_thread_interrupt_checkpoint (mb);
7750 mono_mb_emit_byte (mb, CEE_RET);
7752 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7753 info->d.managed_to_native.method = method;
7755 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7757 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7766 g_assert (piinfo->addr);
7769 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7770 mono_method_get_marshal_info (method, mspecs);
7772 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7775 info->d.managed_to_native.method = method;
7777 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7779 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7784 for (i = sig->param_count; i >= 0; i--)
7786 mono_metadata_free_marshal_spec (mspecs [i]);
7790 /* mono_method_print_code (res); */
7796 * mono_marshal_get_native_func_wrapper:
7797 * @image: The image to use for memory allocation and for looking up custom marshallers.
7798 * @sig: The signature of the function
7799 * @func: The native function to wrap
7801 * Returns a wrapper method around native functions, similar to the pinvoke
7805 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7806 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7808 MonoMethodSignature *csig;
7810 SignaturePointerPair key, *new_key;
7811 MonoMethodBuilder *mb;
7820 // Generic types are not safe to place in MonoImage caches.
7821 g_assert (!sig->is_inflated);
7823 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7824 if ((res = mono_marshal_find_in_cache (cache, &key)))
7827 name = g_strdup_printf ("wrapper_native_%p", func);
7828 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7829 mb->method->save_lmf = 1;
7832 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7835 csig = mono_metadata_signature_dup_full (image, sig);
7838 new_key = g_new (SignaturePointerPair,1);
7839 new_key->sig = csig;
7840 new_key->pointer = func;
7842 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7848 mono_marshal_set_wrapper_info (res, NULL);
7854 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7858 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7860 MonoMethodSignature *sig, *csig;
7861 MonoMethodBuilder *mb;
7866 MonoMethodPInvoke mpiinfo;
7867 MonoMethodPInvoke *piinfo = &mpiinfo;
7868 MonoMarshalSpec **mspecs;
7869 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7870 MonoImage *image = invoke->klass->image;
7873 // FIXME: include UnmanagedFunctionPointerAttribute info
7876 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7878 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7880 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7883 memset (&mpiinfo, 0, sizeof (mpiinfo));
7884 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7886 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7887 mono_method_get_marshal_info (invoke, mspecs);
7888 /* Freed below so don't alloc from mempool */
7889 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7892 name = g_strdup_printf ("wrapper_aot_native");
7893 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7894 mb->method->save_lmf = 1;
7897 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7900 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7901 info->d.managed_to_native.method = invoke;
7903 g_assert (!sig->hasthis);
7904 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7906 res = mono_mb_create_and_cache_full (cache, invoke,
7907 mb, csig, csig->param_count + 16,
7911 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7913 mono_metadata_free_marshal_spec (mspecs [i]);
7921 * mono_marshal_emit_managed_wrapper:
7923 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7924 * the delegate which wraps the managed method to be called. For closed delegates,
7925 * it could have fewer parameters than the method it wraps.
7926 * THIS_LOC is the memory location where the target of the delegate is stored.
7929 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7932 MonoMethodSignature *sig, *csig;
7938 /* we first do all conversions */
7939 for (i = 0; i < sig->param_count; i ++) {
7940 MonoType *t = sig->params [i];
7943 case MONO_TYPE_OBJECT:
7944 case MONO_TYPE_CLASS:
7945 case MONO_TYPE_VALUETYPE:
7946 case MONO_TYPE_ARRAY:
7947 case MONO_TYPE_SZARRAY:
7948 case MONO_TYPE_STRING:
7949 case MONO_TYPE_BOOLEAN:
7950 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7954 if (!sig->ret->byref) {
7955 switch (sig->ret->type) {
7956 case MONO_TYPE_STRING:
7957 csig->ret = &mono_defaults.int_class->byval_arg;
7964 MonoMethodSignature *sig, *csig;
7965 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7966 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7967 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7968 gboolean closed = FALSE;
7973 /* allocate local 0 (pointer) src_ptr */
7974 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7975 /* allocate local 1 (pointer) dst_ptr */
7976 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7977 /* allocate local 2 (boolean) delete_old */
7978 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7980 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7981 /* Closed delegate */
7982 g_assert (sig->param_count == invoke_sig->param_count + 1);
7984 /* Use a new signature without the first argument */
7985 sig = mono_metadata_signature_dup (sig);
7986 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7987 sig->param_count --;
7990 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7991 /* allocate local 3 to store the return value */
7992 mono_mb_add_local (mb, sig->ret);
7995 if (MONO_TYPE_ISSTRUCT (sig->ret))
7996 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7998 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
7999 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8001 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8002 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8007 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8008 * mono_threads_attach_coop ();
8012 * ret = method (...);
8013 * } catch (Exception e) {
8014 * ex = mono_gchandle_new (e, false);
8016 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8017 * mono_threads_detach_coop ();
8020 * mono_marshal_ftnptr_eh_callback (ex);
8026 clauses = g_new0 (MonoExceptionClause, 2);
8028 clause_catch = &clauses [0];
8029 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8030 clause_catch->data.catch_class = mono_defaults.exception_class;
8032 clause_finally = &clauses [1];
8033 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8035 mono_mb_emit_icon (mb, 0);
8036 mono_mb_emit_stloc (mb, 2);
8038 mono_mb_emit_icon (mb, -1);
8039 mono_mb_emit_byte (mb, CEE_CONV_U4);
8040 mono_mb_emit_stloc (mb, ex_local);
8043 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8045 if (!mono_threads_is_coop_enabled ()) {
8046 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8047 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8049 /* mono_threads_attach_coop (); */
8050 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8051 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8052 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8053 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8054 mono_mb_emit_stloc (mb, attach_cookie_local);
8057 /* <interrupt check> */
8058 emit_thread_interrupt_checkpoint (mb);
8060 /* we first do all conversions */
8061 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8062 for (i = 0; i < sig->param_count; i ++) {
8063 MonoType *t = sig->params [i];
8066 case MONO_TYPE_OBJECT:
8067 case MONO_TYPE_CLASS:
8068 case MONO_TYPE_VALUETYPE:
8069 case MONO_TYPE_ARRAY:
8070 case MONO_TYPE_SZARRAY:
8071 case MONO_TYPE_STRING:
8072 case MONO_TYPE_BOOLEAN:
8073 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8083 if (target_handle) {
8084 mono_mb_emit_icon (mb, (gint32)target_handle);
8085 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8088 g_assert_not_reached ();
8090 } else if (closed) {
8091 mono_mb_emit_icon (mb, (gint32)target_handle);
8092 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8095 for (i = 0; i < sig->param_count; i++) {
8096 MonoType *t = sig->params [i];
8098 if (tmp_locals [i]) {
8100 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8102 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8105 mono_mb_emit_ldarg (mb, i);
8108 /* ret = method (...) */
8109 mono_mb_emit_managed_call (mb, method, NULL);
8111 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8112 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8113 mono_class_init (klass);
8114 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8115 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8116 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8117 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8118 mono_mb_emit_stloc (mb, m->vtaddr_var);
8122 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8123 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8124 } else if (!sig->ret->byref) {
8125 switch (sig->ret->type) {
8126 case MONO_TYPE_VOID:
8128 case MONO_TYPE_BOOLEAN:
8131 case MONO_TYPE_CHAR:
8143 case MONO_TYPE_OBJECT:
8144 mono_mb_emit_stloc (mb, 3);
8146 case MONO_TYPE_STRING:
8147 csig->ret = &mono_defaults.int_class->byval_arg;
8148 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8150 case MONO_TYPE_VALUETYPE:
8151 case MONO_TYPE_CLASS:
8152 case MONO_TYPE_SZARRAY:
8153 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8156 g_warning ("return type 0x%02x unknown", sig->ret->type);
8157 g_assert_not_reached ();
8160 mono_mb_emit_stloc (mb, 3);
8163 /* Convert byref arguments back */
8164 for (i = 0; i < sig->param_count; i ++) {
8165 MonoType *t = sig->params [i];
8166 MonoMarshalSpec *spec = mspecs [i + 1];
8168 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8169 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8171 else if (t->byref) {
8173 case MONO_TYPE_CLASS:
8174 case MONO_TYPE_VALUETYPE:
8175 case MONO_TYPE_OBJECT:
8176 case MONO_TYPE_STRING:
8177 case MONO_TYPE_BOOLEAN:
8178 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8184 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8185 /* The [Out] information is encoded in the delegate signature */
8187 case MONO_TYPE_SZARRAY:
8188 case MONO_TYPE_CLASS:
8189 case MONO_TYPE_VALUETYPE:
8190 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8193 g_assert_not_reached ();
8198 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8202 /* catch (Exception e) { */
8203 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8204 clause_catch->handler_offset = mono_mb_get_label (mb);
8206 mono_mb_emit_stloc (mb, e_local);
8208 /* ex = mono_gchandle_new (e, false); */
8209 mono_mb_emit_ldloc (mb, e_local);
8210 mono_mb_emit_icon (mb, 0);
8211 mono_mb_emit_icall (mb, mono_gchandle_new);
8212 mono_mb_emit_stloc (mb, ex_local);
8214 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8217 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8220 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8221 clause_finally->handler_offset = mono_mb_get_label (mb);
8223 if (!mono_threads_is_coop_enabled ()) {
8224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8225 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8227 /* mono_threads_detach_coop (); */
8228 mono_mb_emit_ldloc (mb, attach_cookie_local);
8229 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8230 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8234 mono_mb_emit_ldloc (mb, ex_local);
8235 mono_mb_emit_icon (mb, -1);
8236 mono_mb_emit_byte (mb, CEE_CONV_U4);
8237 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8239 /* mono_marshal_ftnptr_eh_callback (ex) */
8240 mono_mb_emit_ldloc (mb, ex_local);
8241 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8244 mono_mb_patch_branch (mb, ex_m1_pos);
8246 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8248 /* } [endfinally] */
8249 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8251 mono_mb_patch_branch (mb, leave_try_pos);
8252 mono_mb_patch_branch (mb, leave_catch_pos);
8255 if (m->retobj_var) {
8256 mono_mb_emit_ldloc (mb, m->retobj_var);
8257 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8258 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8261 if (!MONO_TYPE_IS_VOID(sig->ret))
8262 mono_mb_emit_ldloc (mb, 3);
8263 mono_mb_emit_byte (mb, CEE_RET);
8266 mono_mb_set_clauses (mb, 2, clauses);
8274 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8276 MonoMethodSignature *sig;
8281 * Under windows, delegates passed to native code must use the STDCALL
8282 * calling convention.
8284 csig->call_convention = MONO_CALL_STDCALL;
8287 sig = mono_method_signature (method);
8289 /* Change default calling convention if needed */
8290 /* Why is this a modopt ? */
8291 if (sig->ret && sig->ret->num_mods) {
8292 for (i = 0; i < sig->ret->num_mods; ++i) {
8294 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8295 g_assert (mono_error_ok (&error));
8296 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8297 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8298 csig->call_convention = MONO_CALL_C;
8299 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8300 csig->call_convention = MONO_CALL_STDCALL;
8301 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8302 csig->call_convention = MONO_CALL_FASTCALL;
8303 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8304 csig->call_convention = MONO_CALL_THISCALL;
8311 * generates IL code to call managed methods from unmanaged code
8312 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8315 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8318 MonoMethodSignature *sig, *csig, *invoke_sig;
8319 MonoMethodBuilder *mb;
8320 MonoMethod *res, *invoke;
8321 MonoMarshalSpec **mspecs;
8322 MonoMethodPInvoke piinfo;
8325 EmitMarshalContext m;
8327 g_assert (method != NULL);
8328 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8331 * FIXME: Should cache the method+delegate type pair, since the same method
8332 * could be called with different delegates, thus different marshalling
8335 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8337 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8340 invoke = mono_get_delegate_invoke (delegate_klass);
8341 invoke_sig = mono_method_signature (invoke);
8343 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8344 mono_method_get_marshal_info (invoke, mspecs);
8346 sig = mono_method_signature (method);
8348 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8350 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8351 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8353 /* we copy the signature, so that we can modify it */
8355 /* Need to free this later */
8356 csig = mono_metadata_signature_dup (invoke_sig);
8358 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8362 memset (&m, 0, sizeof (m));
8368 m.image = method->klass->image;
8370 mono_marshal_set_callconv_from_modopt (invoke, csig);
8372 /* The attribute is only available in Net 2.0 */
8373 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8374 MonoCustomAttrInfo *cinfo;
8375 MonoCustomAttrEntry *attr;
8378 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8379 * contents of the attribute without constructing it, as that might not be
8380 * possible when running in cross-compiling mode.
8382 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8383 mono_error_assert_ok (&error);
8386 for (i = 0; i < cinfo->num_attrs; ++i) {
8387 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8388 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8389 attr = &cinfo->attrs [i];
8395 MonoArray *typed_args, *named_args;
8396 CattrNamedArg *arginfo;
8400 MonoBoolean set_last_error = 0;
8403 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8404 g_assert (mono_error_ok (&error));
8405 g_assert (mono_array_length (typed_args) == 1);
8408 o = mono_array_get (typed_args, MonoObject*, 0);
8409 call_conv = *(gint32*)mono_object_unbox (o);
8412 for (i = 0; i < mono_array_length (named_args); ++i) {
8413 CattrNamedArg *narg = &arginfo [i];
8415 o = mono_array_get (named_args, MonoObject*, i);
8417 g_assert (narg->field);
8418 if (!strcmp (narg->field->name, "CharSet")) {
8419 charset = *(gint32*)mono_object_unbox (o);
8420 } else if (!strcmp (narg->field->name, "SetLastError")) {
8421 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8422 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8423 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8424 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8425 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8427 g_assert_not_reached ();
8433 memset (&piinfo, 0, sizeof (piinfo));
8435 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8437 csig->call_convention = call_conv - 1;
8440 if (cinfo && !cinfo->cached)
8441 mono_custom_attrs_free (cinfo);
8444 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8446 if (!target_handle) {
8449 // FIXME: Associate it with the method+delegate_klass pair
8450 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8451 info->d.native_to_managed.method = method;
8452 info->d.native_to_managed.klass = delegate_klass;
8454 res = mono_mb_create_and_cache_full (cache, method,
8455 mb, csig, sig->param_count + 16,
8461 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8465 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8467 mono_metadata_free_marshal_spec (mspecs [i]);
8470 /* mono_method_print_code (res); */
8476 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8480 MonoMethodSignature *sig;
8481 MonoMethodBuilder *mb;
8486 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8488 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8491 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8492 MonoMethodSignature *csig;
8493 MonoMarshalSpec **mspecs;
8494 EmitMarshalContext m;
8496 sig = mono_method_signature (method);
8497 g_assert (!sig->hasthis);
8499 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8500 mono_method_get_marshal_info (method, mspecs);
8502 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8503 csig = mono_metadata_signature_dup_full (image, sig);
8507 memset (&m, 0, sizeof (m));
8515 mono_marshal_set_callconv_from_modopt (method, csig);
8517 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8519 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8524 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8527 for (i = sig->param_count; i >= 0; i--)
8529 mono_metadata_free_marshal_spec (mspecs [i]);
8532 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8533 mono_error_assert_ok (&error);
8534 return compiled_ptr;
8537 sig = mono_method_signature (method);
8538 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8540 param_count = sig->param_count + sig->hasthis;
8542 for (i = 0; i < param_count; i++)
8543 mono_mb_emit_ldarg (mb, i);
8545 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8546 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8548 mono_mb_emit_op (mb, CEE_CALL, method);
8549 mono_mb_emit_byte (mb, CEE_RET);
8554 method = mono_mb_create (mb, sig, param_count, NULL);
8557 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8558 mono_error_assert_ok (&error);
8559 return compiled_ptr;
8565 * The code directly following this is the cache hit, value positive branch
8567 * This function takes a new method builder with 0 locals and adds two locals
8568 * to create multiple out-branches and the fall through state of having the object
8569 * on the stack after a cache miss
8572 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8573 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8574 MonoMethodBuilder *mb)
8578 /* allocate local 0 (pointer) obj_vtable */
8579 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8580 /* allocate local 1 (pointer) cached_vtable */
8581 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8584 mono_mb_emit_ldarg (mb, obj_arg_position);
8585 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8587 /*obj_vtable = obj->vtable;*/
8588 mono_mb_emit_ldarg (mb, obj_arg_position);
8589 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8590 mono_mb_emit_byte (mb, CEE_LDIND_I);
8591 mono_mb_emit_stloc (mb, 0);
8593 /* cached_vtable = *cache*/
8594 mono_mb_emit_ldarg (mb, cache_arg_position);
8595 mono_mb_emit_byte (mb, CEE_LDIND_I);
8596 mono_mb_emit_stloc (mb, 1);
8598 mono_mb_emit_ldloc (mb, 1);
8599 mono_mb_emit_byte (mb, CEE_LDC_I4);
8600 mono_mb_emit_i4 (mb, ~0x1);
8601 mono_mb_emit_byte (mb, CEE_CONV_I);
8602 mono_mb_emit_byte (mb, CEE_AND);
8603 mono_mb_emit_ldloc (mb, 0);
8604 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8605 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8607 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8608 mono_mb_emit_ldloc (mb, 1);
8609 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8610 mono_mb_emit_byte (mb, CEE_CONV_U);
8611 mono_mb_emit_byte (mb, CEE_AND);
8612 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8613 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8616 mono_mb_patch_branch (mb, cache_miss_pos);
8619 mono_mb_emit_ldarg (mb, obj_arg_position);
8620 mono_mb_emit_ldarg (mb, class_arg_position);
8621 mono_mb_emit_ldarg (mb, cache_arg_position);
8622 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8625 #endif /* DISABLE_JIT */
8628 * This does the equivalent of mono_object_castclass_with_cache.
8629 * The wrapper info for the wrapper is a WrapperInfo structure.
8632 mono_marshal_get_castclass_with_cache (void)
8634 static MonoMethod *cached;
8636 MonoMethodBuilder *mb;
8637 MonoMethodSignature *sig;
8638 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8641 const int obj_arg_position = 0;
8642 const int class_arg_position = 1;
8643 const int cache_arg_position = 2;
8648 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8649 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8650 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8651 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8652 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8653 sig->ret = &mono_defaults.object_class->byval_arg;
8657 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8658 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8659 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8662 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8663 mono_mb_emit_ldarg (mb, obj_arg_position);
8664 mono_mb_emit_byte (mb, CEE_RET);
8667 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8668 mono_mb_patch_branch (mb, invalid_cast_pos);
8669 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8672 mono_mb_patch_branch (mb, return_null_pos);
8673 mono_mb_emit_byte (mb, CEE_LDNULL);
8674 mono_mb_emit_byte (mb, CEE_RET);
8675 #endif /* DISABLE_JIT */
8677 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8678 res = mono_mb_create (mb, sig, 8, info);
8681 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8682 mono_free_method (res);
8683 mono_metadata_free_method_signature (sig);
8690 /* this is an icall */
8692 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8695 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8696 if (mono_error_set_pending_exception (&error))
8699 #ifndef DISABLE_REMOTING
8700 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8704 uintptr_t cache_update = (uintptr_t)obj->vtable;
8706 cache_update = cache_update | 0x1;
8708 *cache = cache_update;
8714 * This does the equivalent of mono_object_isinst_with_cache.
8715 * The wrapper info for the wrapper is a WrapperInfo structure.
8718 mono_marshal_get_isinst_with_cache (void)
8720 static MonoMethod *cached;
8722 MonoMethodBuilder *mb;
8723 MonoMethodSignature *sig;
8724 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8727 const int obj_arg_position = 0;
8728 const int class_arg_position = 1;
8729 const int cache_arg_position = 2;
8734 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8735 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8737 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8739 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8741 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8742 sig->ret = &mono_defaults.object_class->byval_arg;
8746 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8747 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8748 // Return the object gotten via the slow path.
8749 mono_mb_emit_byte (mb, CEE_RET);
8752 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8753 mono_mb_patch_branch (mb, return_null_pos);
8754 mono_mb_emit_byte (mb, CEE_LDNULL);
8755 mono_mb_emit_byte (mb, CEE_RET);
8758 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8759 mono_mb_emit_ldarg (mb, obj_arg_position);
8760 mono_mb_emit_byte (mb, CEE_RET);
8763 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8764 res = mono_mb_create (mb, sig, 8, info);
8767 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8768 mono_free_method (res);
8769 mono_metadata_free_method_signature (sig);
8777 * mono_marshal_get_isinst:
8778 * @klass: the type of the field
8780 * This method generates a function which can be used to check if an object is
8781 * an instance of the given type, icluding the case where the object is a proxy.
8782 * The generated function has the following signature:
8783 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8786 mono_marshal_get_isinst (MonoClass *klass)
8788 static MonoMethodSignature *isint_sig = NULL;
8792 int pos_was_ok, pos_end;
8793 #ifndef DISABLE_REMOTING
8794 int pos_end2, pos_failed;
8797 MonoMethodBuilder *mb;
8799 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8800 if ((res = mono_marshal_find_in_cache (cache, klass)))
8804 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8805 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8806 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8807 isint_sig->pinvoke = 0;
8810 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8811 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8814 mb->method->save_lmf = 1;
8817 /* check if the object is a proxy that needs special cast */
8818 mono_mb_emit_ldarg (mb, 0);
8819 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8820 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8822 /* The result of MONO_CISINST can be:
8823 0) the type check succeeded
8824 1) the type check did not succeed
8825 2) a CanCastTo call is needed */
8826 #ifndef DISABLE_REMOTING
8827 mono_mb_emit_byte (mb, CEE_DUP);
8828 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8830 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8831 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8833 /* get the real proxy from the transparent proxy*/
8835 mono_mb_emit_ldarg (mb, 0);
8836 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8837 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8841 mono_mb_patch_branch (mb, pos_failed);
8842 mono_mb_emit_byte (mb, CEE_LDNULL);
8843 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8847 mono_mb_patch_branch (mb, pos_was_ok);
8848 mono_mb_emit_byte (mb, CEE_POP);
8849 mono_mb_emit_ldarg (mb, 0);
8853 mono_mb_patch_branch (mb, pos_end);
8854 mono_mb_patch_branch (mb, pos_end2);
8855 mono_mb_emit_byte (mb, CEE_RET);
8857 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8861 mono_mb_emit_byte (mb, CEE_LDNULL);
8862 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8866 mono_mb_patch_branch (mb, pos_was_ok);
8867 mono_mb_emit_ldarg (mb, 0);
8871 mono_mb_patch_branch (mb, pos_end);
8872 mono_mb_emit_byte (mb, CEE_RET);
8873 #endif /* DISABLE_REMOTING */
8874 #endif /* DISABLE_JIT */
8876 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8877 info->d.proxy.klass = klass;
8878 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8885 * mono_marshal_get_castclass:
8886 * @klass: the type of the field
8888 * This method generates a function which can be used to cast an object to
8889 * an instance of the given type, icluding the case where the object is a proxy.
8890 * The generated function has the following signature:
8891 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8892 * The wrapper info for the wrapper is a WrapperInfo structure.
8895 mono_marshal_get_castclass (MonoClass *klass)
8897 static MonoMethodSignature *castclass_sig = NULL;
8900 #ifndef DISABLE_REMOTING
8901 int pos_was_ok, pos_was_ok2;
8904 MonoMethodBuilder *mb;
8907 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8908 if ((res = mono_marshal_find_in_cache (cache, klass)))
8911 if (!castclass_sig) {
8912 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8913 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8914 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8915 castclass_sig->pinvoke = 0;
8918 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8919 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8922 mb->method->save_lmf = 1;
8925 /* check if the object is a proxy that needs special cast */
8926 mono_mb_emit_ldarg (mb, 0);
8927 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8928 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8930 /* The result of MONO_CCASTCLASS can be:
8931 0) the cast is valid
8932 1) cast of unknown proxy type
8933 or an exception if the cast is is invalid
8935 #ifndef DISABLE_REMOTING
8936 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8938 /* get the real proxy from the transparent proxy*/
8940 mono_mb_emit_ldarg (mb, 0);
8941 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8942 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8945 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8948 mono_mb_patch_branch (mb, pos_was_ok);
8949 mono_mb_patch_branch (mb, pos_was_ok2);
8951 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8952 mono_mb_emit_byte (mb, CEE_POP);
8953 #endif /* DISABLE_REMOTING */
8955 mono_mb_emit_ldarg (mb, 0);
8958 mono_mb_emit_byte (mb, CEE_RET);
8959 #endif /* DISABLE_JIT */
8961 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8963 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8971 * mono_marshal_get_struct_to_ptr:
8974 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8975 * The wrapper info for the wrapper is a WrapperInfo structure.
8978 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8980 MonoMethodBuilder *mb;
8981 static MonoMethod *stoptr = NULL;
8985 g_assert (klass != NULL);
8987 mono_marshal_load_type_info (klass);
8989 if (klass->marshal_info->str_to_ptr)
8990 return klass->marshal_info->str_to_ptr;
8993 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8996 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8999 if (klass->blittable) {
9000 mono_mb_emit_byte (mb, CEE_LDARG_1);
9001 mono_mb_emit_byte (mb, CEE_LDARG_0);
9002 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9003 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9004 mono_mb_emit_byte (mb, CEE_PREFIX1);
9005 mono_mb_emit_byte (mb, CEE_CPBLK);
9008 /* allocate local 0 (pointer) src_ptr */
9009 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9010 /* allocate local 1 (pointer) dst_ptr */
9011 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9012 /* allocate local 2 (boolean) delete_old */
9013 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9014 mono_mb_emit_byte (mb, CEE_LDARG_2);
9015 mono_mb_emit_stloc (mb, 2);
9017 /* initialize src_ptr to point to the start of object data */
9018 mono_mb_emit_byte (mb, CEE_LDARG_0);
9019 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9020 mono_mb_emit_stloc (mb, 0);
9022 /* initialize dst_ptr */
9023 mono_mb_emit_byte (mb, CEE_LDARG_1);
9024 mono_mb_emit_stloc (mb, 1);
9026 emit_struct_conv (mb, klass, FALSE);
9029 mono_mb_emit_byte (mb, CEE_RET);
9031 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9032 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9035 mono_marshal_lock ();
9036 if (!klass->marshal_info->str_to_ptr)
9037 klass->marshal_info->str_to_ptr = res;
9039 res = klass->marshal_info->str_to_ptr;
9040 mono_marshal_unlock ();
9045 * mono_marshal_get_ptr_to_struct:
9048 * generates IL code for PtrToStructure (IntPtr src, object structure)
9049 * The wrapper info for the wrapper is a WrapperInfo structure.
9052 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9054 MonoMethodBuilder *mb;
9055 static MonoMethodSignature *ptostr = NULL;
9059 g_assert (klass != NULL);
9061 mono_marshal_load_type_info (klass);
9063 if (klass->marshal_info->ptr_to_str)
9064 return klass->marshal_info->ptr_to_str;
9067 MonoMethodSignature *sig;
9069 /* Create the signature corresponding to
9070 static void PtrToStructure (IntPtr ptr, object structure);
9071 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9072 sig = mono_create_icall_signature ("void ptr object");
9073 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9075 mono_memory_barrier ();
9079 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9082 if (klass->blittable) {
9083 mono_mb_emit_byte (mb, CEE_LDARG_1);
9084 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9085 mono_mb_emit_byte (mb, CEE_LDARG_0);
9086 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9087 mono_mb_emit_byte (mb, CEE_PREFIX1);
9088 mono_mb_emit_byte (mb, CEE_CPBLK);
9091 /* allocate local 0 (pointer) src_ptr */
9092 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9093 /* allocate local 1 (pointer) dst_ptr */
9094 mono_mb_add_local (mb, &klass->this_arg);
9096 /* initialize src_ptr to point to the start of object data */
9097 mono_mb_emit_byte (mb, CEE_LDARG_0);
9098 mono_mb_emit_stloc (mb, 0);
9100 /* initialize dst_ptr */
9101 mono_mb_emit_byte (mb, CEE_LDARG_1);
9102 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9103 mono_mb_emit_stloc (mb, 1);
9105 emit_struct_conv (mb, klass, TRUE);
9108 mono_mb_emit_byte (mb, CEE_RET);
9110 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9111 res = mono_mb_create (mb, ptostr, 0, info);
9114 mono_marshal_lock ();
9115 if (!klass->marshal_info->ptr_to_str)
9116 klass->marshal_info->ptr_to_str = res;
9118 res = klass->marshal_info->ptr_to_str;
9119 mono_marshal_unlock ();
9124 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9125 * This is used to avoid infinite recursion since it is hard to determine where to
9126 * replace a method with its synchronized wrapper, and where not.
9127 * The runtime should execute METHOD instead of the wrapper.
9128 * The wrapper info for the wrapper is a WrapperInfo structure.
9131 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9133 MonoMethodBuilder *mb;
9135 MonoMethodSignature *sig;
9137 MonoGenericContext *ctx = NULL;
9138 MonoGenericContainer *container = NULL;
9140 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9141 ctx = &((MonoMethodInflated*)method)->context;
9142 method = ((MonoMethodInflated*)method)->declaring;
9143 container = mono_method_get_generic_container (method);
9145 container = method->klass->generic_container;
9146 g_assert (container);
9149 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9151 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9152 mono_mb_emit_byte (mb, CEE_RET);
9154 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9156 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9157 info->d.synchronized_inner.method = method;
9158 res = mono_mb_create (mb, sig, 0, info);
9162 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9163 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9169 * generates IL code for the synchronized wrapper: the generated method
9170 * calls METHOD while locking 'this' or the parent type.
9173 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9175 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9176 MonoMethodSignature *sig;
9177 MonoExceptionClause *clause;
9178 MonoMethodBuilder *mb;
9182 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9183 MonoGenericContext *ctx = NULL;
9184 MonoMethod *orig_method = NULL;
9185 MonoGenericContainer *container = NULL;
9189 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9192 /* FIXME: Support generic methods too */
9193 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9194 orig_method = method;
9195 ctx = &((MonoMethodInflated*)method)->context;
9196 method = ((MonoMethodInflated*)method)->declaring;
9197 container = mono_method_get_generic_container (method);
9199 container = method->klass->generic_container;
9200 g_assert (container);
9207 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9208 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9212 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9213 if ((res = mono_marshal_find_in_cache (cache, method)))
9217 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9220 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9222 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9223 info->d.synchronized.method = method;
9226 mb->skip_visibility = 1;
9228 if (!MONO_TYPE_IS_VOID (sig->ret))
9229 ret_local = mono_mb_add_local (mb, sig->ret);
9232 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9233 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9235 /* This will throw the type load exception when the wrapper is compiled */
9236 mono_mb_emit_byte (mb, CEE_LDNULL);
9237 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9238 mono_mb_emit_byte (mb, CEE_POP);
9240 if (!MONO_TYPE_IS_VOID (sig->ret))
9241 mono_mb_emit_ldloc (mb, ret_local);
9242 mono_mb_emit_byte (mb, CEE_RET);
9245 res = mono_mb_create_and_cache_full (cache, method,
9246 mb, sig, sig->param_count + 16, info, NULL);
9254 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9255 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9257 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9258 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9261 mono_marshal_lock ();
9263 if (!enter_method) {
9264 MonoMethodDesc *desc;
9266 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9267 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9268 g_assert (enter_method);
9269 mono_method_desc_free (desc);
9271 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9272 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9273 g_assert (exit_method);
9274 mono_method_desc_free (desc);
9276 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9277 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9278 g_assert (gettypefromhandle_method);
9279 mono_method_desc_free (desc);
9282 mono_marshal_unlock ();
9285 /* Push this or the type object */
9286 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9287 /* We have special handling for this in the JIT */
9288 int index = mono_mb_add_data (mb, method->klass);
9289 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9290 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9291 mono_mb_emit_i4 (mb, index);
9293 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9296 mono_mb_emit_ldarg (mb, 0);
9297 mono_mb_emit_stloc (mb, this_local);
9299 /* Call Monitor::Enter() */
9300 mono_mb_emit_ldloc (mb, this_local);
9301 mono_mb_emit_ldloc_addr (mb, taken_local);
9302 mono_mb_emit_managed_call (mb, enter_method, NULL);
9304 clause->try_offset = mono_mb_get_label (mb);
9306 /* Call the method */
9308 mono_mb_emit_ldarg (mb, 0);
9309 for (i = 0; i < sig->param_count; i++)
9310 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9314 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9315 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9317 mono_mb_emit_managed_call (mb, method, NULL);
9320 if (!MONO_TYPE_IS_VOID (sig->ret))
9321 mono_mb_emit_stloc (mb, ret_local);
9323 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9325 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9326 clause->handler_offset = mono_mb_get_label (mb);
9328 /* Call Monitor::Exit() if needed */
9329 mono_mb_emit_ldloc (mb, taken_local);
9330 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9331 mono_mb_emit_ldloc (mb, this_local);
9332 mono_mb_emit_managed_call (mb, exit_method, NULL);
9333 mono_mb_patch_branch (mb, pos2);
9334 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9336 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9338 mono_mb_patch_branch (mb, pos);
9339 if (!MONO_TYPE_IS_VOID (sig->ret))
9340 mono_mb_emit_ldloc (mb, ret_local);
9341 mono_mb_emit_byte (mb, CEE_RET);
9343 mono_mb_set_clauses (mb, 1, clause);
9348 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9349 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9351 res = mono_mb_create_and_cache_full (cache, method,
9352 mb, sig, sig->param_count + 16, info, NULL);
9361 * the returned method calls 'method' unboxing the this argument
9364 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9366 MonoMethodSignature *sig = mono_method_signature (method);
9368 MonoMethodBuilder *mb;
9373 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9375 if ((res = mono_marshal_find_in_cache (cache, method)))
9378 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9380 g_assert (sig->hasthis);
9383 mono_mb_emit_ldarg (mb, 0);
9384 mono_mb_emit_icon (mb, sizeof (MonoObject));
9385 mono_mb_emit_byte (mb, CEE_ADD);
9386 for (i = 0; i < sig->param_count; ++i)
9387 mono_mb_emit_ldarg (mb, i + 1);
9388 mono_mb_emit_managed_call (mb, method, NULL);
9389 mono_mb_emit_byte (mb, CEE_RET);
9392 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9393 info->d.unbox.method = method;
9395 res = mono_mb_create_and_cache_full (cache, method,
9396 mb, sig, sig->param_count + 16, info, NULL);
9399 /* mono_method_print_code (res); */
9405 STELEMREF_OBJECT, /*no check at all*/
9406 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9407 STELEMREF_CLASS, /*only the klass->parents check*/
9408 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9409 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9410 STELEMREF_KIND_COUNT
9413 static const char *strelemref_wrapper_name[] = {
9414 "object", "sealed_class", "class", "interface", "complex"
9418 is_monomorphic_array (MonoClass *klass)
9420 MonoClass *element_class;
9421 if (klass->rank != 1)
9424 element_class = klass->element_class;
9425 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9429 get_virtual_stelemref_kind (MonoClass *element_class)
9431 if (element_class == mono_defaults.object_class)
9432 return STELEMREF_OBJECT;
9433 if (is_monomorphic_array (element_class))
9434 return STELEMREF_SEALED_CLASS;
9435 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9436 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9437 #ifdef COMPRESSED_INTERFACE_BITMAP
9438 return STELEMREF_COMPLEX;
9440 return STELEMREF_INTERFACE;
9442 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9443 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9444 return STELEMREF_COMPLEX;
9445 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9446 return STELEMREF_SEALED_CLASS;
9447 return STELEMREF_CLASS;
9453 load_array_element_address (MonoMethodBuilder *mb)
9455 mono_mb_emit_ldarg (mb, 0);
9456 mono_mb_emit_ldarg (mb, 1);
9457 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9461 load_array_class (MonoMethodBuilder *mb, int aklass)
9463 mono_mb_emit_ldarg (mb, 0);
9464 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9465 mono_mb_emit_byte (mb, CEE_LDIND_I);
9466 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9467 mono_mb_emit_byte (mb, CEE_LDIND_I);
9468 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9469 mono_mb_emit_byte (mb, CEE_LDIND_I);
9470 mono_mb_emit_stloc (mb, aklass);
9474 load_value_class (MonoMethodBuilder *mb, int vklass)
9476 mono_mb_emit_ldarg (mb, 2);
9477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9478 mono_mb_emit_byte (mb, CEE_LDIND_I);
9479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9480 mono_mb_emit_byte (mb, CEE_LDIND_I);
9481 mono_mb_emit_stloc (mb, vklass);
9487 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9489 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9490 printf ("slow vstore of %s\n", name);
9496 * The wrapper info for the wrapper is a WrapperInfo structure.
9499 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9500 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9501 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9502 * - Add a case for arrays of arrays.
9505 get_virtual_stelemref_wrapper (int kind)
9507 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9508 static MonoMethodSignature *signature;
9509 MonoMethodBuilder *mb;
9512 const char *param_names [16];
9514 int aklass, vklass, vtable, uiid;
9515 int array_slot_addr;
9518 if (cached_methods [kind])
9519 return cached_methods [kind];
9521 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9522 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9526 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9528 /* void this::stelemref (size_t idx, void* value) */
9529 sig->ret = &mono_defaults.void_class->byval_arg;
9530 sig->hasthis = TRUE;
9531 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9532 sig->params [1] = &mono_defaults.object_class->byval_arg;
9537 param_names [0] = "index";
9538 param_names [1] = "value";
9539 mono_mb_set_param_names (mb, param_names);
9541 /*For now simply call plain old stelemref*/
9543 case STELEMREF_OBJECT:
9544 /* ldelema (implicit bound check) */
9545 load_array_element_address (mb);
9547 mono_mb_emit_ldarg (mb, 2);
9548 mono_mb_emit_byte (mb, CEE_STIND_REF);
9549 mono_mb_emit_byte (mb, CEE_RET);
9552 case STELEMREF_COMPLEX:
9554 <ldelema (bound check)>
9557 if (!mono_object_isinst (value, aklass))
9561 *array_slot_addr = value;
9564 throw new ArrayTypeMismatchException ();
9567 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9568 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9572 /*Use this to debug/record stores that are going thru the slow path*/
9573 MonoMethodSignature *csig;
9574 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9575 csig->ret = &mono_defaults.void_class->byval_arg;
9576 csig->params [0] = &mono_defaults.object_class->byval_arg;
9577 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9578 csig->params [2] = &mono_defaults.object_class->byval_arg;
9579 mono_mb_emit_ldarg (mb, 0);
9580 mono_mb_emit_ldarg (mb, 1);
9581 mono_mb_emit_ldarg (mb, 2);
9582 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9586 /* ldelema (implicit bound check) */
9587 load_array_element_address (mb);
9588 mono_mb_emit_stloc (mb, array_slot_addr);
9590 /* if (!value) goto do_store */
9591 mono_mb_emit_ldarg (mb, 2);
9592 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9594 /* aklass = array->vtable->klass->element_class */
9595 load_array_class (mb, aklass);
9597 /*if (mono_object_isinst (value, aklass)) */
9598 mono_mb_emit_ldarg (mb, 2);
9599 mono_mb_emit_ldloc (mb, aklass);
9600 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9601 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9604 mono_mb_patch_branch (mb, b1);
9605 mono_mb_emit_ldloc (mb, array_slot_addr);
9606 mono_mb_emit_ldarg (mb, 2);
9607 mono_mb_emit_byte (mb, CEE_STIND_REF);
9608 mono_mb_emit_byte (mb, CEE_RET);
9611 mono_mb_patch_branch (mb, b2);
9613 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9616 case STELEMREF_SEALED_CLASS:
9618 <ldelema (bound check)>
9622 aklass = array->vtable->klass->element_class;
9623 vklass = value->vtable->klass;
9625 if (vklass != aklass)
9629 *array_slot_addr = value;
9632 throw new ArrayTypeMismatchException ();
9634 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9635 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9636 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9639 /* ldelema (implicit bound check) */
9640 load_array_element_address (mb);
9641 mono_mb_emit_stloc (mb, array_slot_addr);
9643 /* if (!value) goto do_store */
9644 mono_mb_emit_ldarg (mb, 2);
9645 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9647 /* aklass = array->vtable->klass->element_class */
9648 load_array_class (mb, aklass);
9650 /* vklass = value->vtable->klass */
9651 load_value_class (mb, vklass);
9653 /*if (vklass != aklass) goto do_exception; */
9654 mono_mb_emit_ldloc (mb, aklass);
9655 mono_mb_emit_ldloc (mb, vklass);
9656 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9659 mono_mb_patch_branch (mb, b1);
9660 mono_mb_emit_ldloc (mb, array_slot_addr);
9661 mono_mb_emit_ldarg (mb, 2);
9662 mono_mb_emit_byte (mb, CEE_STIND_REF);
9663 mono_mb_emit_byte (mb, CEE_RET);
9666 mono_mb_patch_branch (mb, b2);
9667 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9670 case STELEMREF_CLASS:
9673 <ldelema (bound check)>
9677 aklass = array->vtable->klass->element_class;
9678 vklass = value->vtable->klass;
9680 if (vklass->idepth < aklass->idepth)
9683 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9687 *array_slot_addr = value;
9691 throw new ArrayTypeMismatchException ();
9693 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9694 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9695 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9697 /* ldelema (implicit bound check) */
9698 load_array_element_address (mb);
9699 mono_mb_emit_stloc (mb, array_slot_addr);
9701 /* if (!value) goto do_store */
9702 mono_mb_emit_ldarg (mb, 2);
9703 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9705 /* aklass = array->vtable->klass->element_class */
9706 load_array_class (mb, aklass);
9708 /* vklass = value->vtable->klass */
9709 load_value_class (mb, vklass);
9711 /*if (mono_object_isinst (value, aklass)) */
9712 mono_mb_emit_ldarg (mb, 2);
9713 mono_mb_emit_ldloc (mb, aklass);
9714 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9715 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9717 /* if (vklass->idepth < aklass->idepth) goto failue */
9718 mono_mb_emit_ldloc (mb, vklass);
9719 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9720 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9722 mono_mb_emit_ldloc (mb, aklass);
9723 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9724 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9726 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9728 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9729 mono_mb_emit_ldloc (mb, vklass);
9730 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9731 mono_mb_emit_byte (mb, CEE_LDIND_I);
9733 mono_mb_emit_ldloc (mb, aklass);
9734 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9735 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9736 mono_mb_emit_icon (mb, 1);
9737 mono_mb_emit_byte (mb, CEE_SUB);
9738 mono_mb_emit_icon (mb, sizeof (void*));
9739 mono_mb_emit_byte (mb, CEE_MUL);
9740 mono_mb_emit_byte (mb, CEE_ADD);
9741 mono_mb_emit_byte (mb, CEE_LDIND_I);
9743 mono_mb_emit_ldloc (mb, aklass);
9744 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9747 mono_mb_patch_branch (mb, b1);
9748 mono_mb_emit_ldloc (mb, array_slot_addr);
9749 mono_mb_emit_ldarg (mb, 2);
9750 mono_mb_emit_byte (mb, CEE_STIND_REF);
9751 mono_mb_emit_byte (mb, CEE_RET);
9754 mono_mb_patch_branch (mb, b2);
9755 mono_mb_patch_branch (mb, b3);
9757 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9760 case STELEMREF_INTERFACE:
9767 klass = array->obj.vtable->klass->element_class;
9769 uiid = klass->interface_id;
9770 if (uiid > vt->max_interface_id)
9772 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9775 mono_array_setref (array, index, value);
9778 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9780 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9781 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9782 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9783 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9785 /* ldelema (implicit bound check) */
9786 load_array_element_address (mb);
9787 mono_mb_emit_stloc (mb, array_slot_addr);
9789 /* if (!value) goto do_store */
9790 mono_mb_emit_ldarg (mb, 2);
9791 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9793 /* klass = array->vtable->klass->element_class */
9794 load_array_class (mb, aklass);
9796 /* vt = value->vtable */
9797 mono_mb_emit_ldarg (mb, 2);
9798 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9799 mono_mb_emit_byte (mb, CEE_LDIND_I);
9800 mono_mb_emit_stloc (mb, vtable);
9802 /* uiid = klass->interface_id; */
9803 mono_mb_emit_ldloc (mb, aklass);
9804 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9805 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9806 mono_mb_emit_stloc (mb, uiid);
9808 /*if (uiid > vt->max_interface_id)*/
9809 mono_mb_emit_ldloc (mb, uiid);
9810 mono_mb_emit_ldloc (mb, vtable);
9811 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9812 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9813 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9815 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9817 /*vt->interface_bitmap*/
9818 mono_mb_emit_ldloc (mb, vtable);
9819 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9820 mono_mb_emit_byte (mb, CEE_LDIND_I);
9823 mono_mb_emit_ldloc (mb, uiid);
9824 mono_mb_emit_icon (mb, 3);
9825 mono_mb_emit_byte (mb, CEE_SHR_UN);
9827 /*vt->interface_bitmap [(uiid) >> 3]*/
9828 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9829 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9831 /*(1 << ((uiid)&7)))*/
9832 mono_mb_emit_icon (mb, 1);
9833 mono_mb_emit_ldloc (mb, uiid);
9834 mono_mb_emit_icon (mb, 7);
9835 mono_mb_emit_byte (mb, CEE_AND);
9836 mono_mb_emit_byte (mb, CEE_SHL);
9838 /*bitwise and the whole thing*/
9839 mono_mb_emit_byte (mb, CEE_AND);
9840 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9843 mono_mb_patch_branch (mb, b1);
9844 mono_mb_emit_ldloc (mb, array_slot_addr);
9845 mono_mb_emit_ldarg (mb, 2);
9846 mono_mb_emit_byte (mb, CEE_STIND_REF);
9847 mono_mb_emit_byte (mb, CEE_RET);
9850 mono_mb_patch_branch (mb, b2);
9851 mono_mb_patch_branch (mb, b3);
9852 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9856 mono_mb_emit_ldarg (mb, 0);
9857 mono_mb_emit_ldarg (mb, 1);
9858 mono_mb_emit_ldarg (mb, 2);
9859 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9860 mono_mb_emit_byte (mb, CEE_RET);
9863 #endif /* DISABLE_JIT */
9864 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9865 info->d.virtual_stelemref.kind = kind;
9866 res = mono_mb_create (mb, signature, 4, info);
9867 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9869 mono_marshal_lock ();
9870 if (!cached_methods [kind]) {
9871 cached_methods [kind] = res;
9872 mono_marshal_unlock ();
9874 mono_marshal_unlock ();
9875 mono_free_method (res);
9879 return cached_methods [kind];
9883 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9887 g_assert (array_class->rank == 1);
9888 kind = get_virtual_stelemref_kind (array_class->element_class);
9890 return get_virtual_stelemref_wrapper (kind);
9894 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9899 *nwrappers = STELEMREF_KIND_COUNT;
9900 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9901 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9902 res [i] = get_virtual_stelemref_wrapper (i);
9907 * The wrapper info for the wrapper is a WrapperInfo structure.
9910 mono_marshal_get_stelemref (void)
9912 static MonoMethod* ret = NULL;
9913 MonoMethodSignature *sig;
9914 MonoMethodBuilder *mb;
9917 guint32 b1, b2, b3, b4;
9920 int array_slot_addr;
9925 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9928 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9930 /* void stelemref (void* array, int idx, void* value) */
9931 sig->ret = &mono_defaults.void_class->byval_arg;
9932 sig->params [0] = &mono_defaults.object_class->byval_arg;
9933 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9934 sig->params [2] = &mono_defaults.object_class->byval_arg;
9937 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9938 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9939 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9943 <ldelema (bound check)>
9947 aklass = array->vtable->klass->element_class;
9948 vklass = value->vtable->klass;
9950 if (vklass->idepth < aklass->idepth)
9953 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9957 *array_slot_addr = value;
9961 if (mono_object_isinst (value, aklass))
9964 throw new ArrayTypeMismatchException ();
9967 /* ldelema (implicit bound check) */
9968 mono_mb_emit_ldarg (mb, 0);
9969 mono_mb_emit_ldarg (mb, 1);
9970 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9971 mono_mb_emit_stloc (mb, array_slot_addr);
9973 /* if (!value) goto do_store */
9974 mono_mb_emit_ldarg (mb, 2);
9975 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9977 /* aklass = array->vtable->klass->element_class */
9978 mono_mb_emit_ldarg (mb, 0);
9979 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9980 mono_mb_emit_byte (mb, CEE_LDIND_I);
9981 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9982 mono_mb_emit_byte (mb, CEE_LDIND_I);
9983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9984 mono_mb_emit_byte (mb, CEE_LDIND_I);
9985 mono_mb_emit_stloc (mb, aklass);
9987 /* vklass = value->vtable->klass */
9988 mono_mb_emit_ldarg (mb, 2);
9989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9990 mono_mb_emit_byte (mb, CEE_LDIND_I);
9991 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9992 mono_mb_emit_byte (mb, CEE_LDIND_I);
9993 mono_mb_emit_stloc (mb, vklass);
9995 /* if (vklass->idepth < aklass->idepth) goto failue */
9996 mono_mb_emit_ldloc (mb, vklass);
9997 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9998 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10000 mono_mb_emit_ldloc (mb, aklass);
10001 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10002 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10004 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10006 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10007 mono_mb_emit_ldloc (mb, vklass);
10008 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10009 mono_mb_emit_byte (mb, CEE_LDIND_I);
10011 mono_mb_emit_ldloc (mb, aklass);
10012 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10013 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10014 mono_mb_emit_icon (mb, 1);
10015 mono_mb_emit_byte (mb, CEE_SUB);
10016 mono_mb_emit_icon (mb, sizeof (void*));
10017 mono_mb_emit_byte (mb, CEE_MUL);
10018 mono_mb_emit_byte (mb, CEE_ADD);
10019 mono_mb_emit_byte (mb, CEE_LDIND_I);
10021 mono_mb_emit_ldloc (mb, aklass);
10023 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10025 copy_pos = mono_mb_get_label (mb);
10027 mono_mb_patch_branch (mb, b1);
10028 mono_mb_emit_ldloc (mb, array_slot_addr);
10029 mono_mb_emit_ldarg (mb, 2);
10030 mono_mb_emit_byte (mb, CEE_STIND_REF);
10032 mono_mb_emit_byte (mb, CEE_RET);
10035 mono_mb_patch_branch (mb, b2);
10036 mono_mb_patch_branch (mb, b3);
10038 mono_mb_emit_ldarg (mb, 2);
10039 mono_mb_emit_ldloc (mb, aklass);
10040 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10042 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10043 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10044 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10046 mono_mb_emit_byte (mb, CEE_RET);
10048 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10049 ret = mono_mb_create (mb, sig, 4, info);
10056 * mono_marshal_get_gsharedvt_in_wrapper:
10058 * This wrapper handles calls from normal code to gsharedvt code.
10060 * The wrapper info for the wrapper is a WrapperInfo structure.
10063 mono_marshal_get_gsharedvt_in_wrapper (void)
10065 static MonoMethod* ret = NULL;
10066 MonoMethodSignature *sig;
10067 MonoMethodBuilder *mb;
10073 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10075 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10076 sig->ret = &mono_defaults.void_class->byval_arg;
10078 #ifndef DISABLE_JIT
10080 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10082 mono_mb_emit_byte (mb, CEE_RET);
10084 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10085 ret = mono_mb_create (mb, sig, 4, info);
10092 * mono_marshal_get_gsharedvt_out_wrapper:
10094 * This wrapper handles calls from gsharedvt code to normal code.
10096 * The wrapper info for the wrapper is a WrapperInfo structure.
10099 mono_marshal_get_gsharedvt_out_wrapper (void)
10101 static MonoMethod* ret = NULL;
10102 MonoMethodSignature *sig;
10103 MonoMethodBuilder *mb;
10109 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10111 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10112 sig->ret = &mono_defaults.void_class->byval_arg;
10114 #ifndef DISABLE_JIT
10116 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10118 mono_mb_emit_byte (mb, CEE_RET);
10120 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10121 ret = mono_mb_create (mb, sig, 4, info);
10130 MonoMethod *method;
10133 /* LOCKING: vars accessed under the marshal lock */
10134 static ArrayElemAddr *elem_addr_cache = NULL;
10135 static int elem_addr_cache_size = 0;
10136 static int elem_addr_cache_next = 0;
10139 * mono_marshal_get_array_address:
10140 * @rank: rank of the array type
10141 * @elem_size: size in bytes of an element of an array.
10143 * Returns a MonoMethod that implements the code to get the address
10144 * of an element in a multi-dimenasional array of @rank dimensions.
10145 * The returned method takes an array as the first argument and then
10146 * @rank indexes for the @rank dimensions.
10147 * If ELEM_SIZE is 0, read the array size from the array object.
10150 mono_marshal_get_array_address (int rank, int elem_size)
10153 MonoMethodBuilder *mb;
10154 MonoMethodSignature *sig;
10157 int i, bounds, ind, realidx;
10158 int branch_pos, *branch_positions;
10162 mono_marshal_lock ();
10163 for (i = 0; i < elem_addr_cache_next; ++i) {
10164 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10165 ret = elem_addr_cache [i].method;
10169 mono_marshal_unlock ();
10173 branch_positions = g_new0 (int, rank);
10175 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10177 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10178 sig->ret = &mono_defaults.int_class->byval_arg;
10179 sig->params [0] = &mono_defaults.object_class->byval_arg;
10180 for (i = 0; i < rank; ++i) {
10181 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10184 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10185 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10188 #ifndef DISABLE_JIT
10189 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10190 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10191 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10193 /* bounds = array->bounds; */
10194 mono_mb_emit_ldarg (mb, 0);
10195 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10196 mono_mb_emit_byte (mb, CEE_LDIND_I);
10197 mono_mb_emit_stloc (mb, bounds);
10199 /* ind is the overall element index, realidx is the partial index in a single dimension */
10200 /* ind = idx0 - bounds [0].lower_bound */
10201 mono_mb_emit_ldarg (mb, 1);
10202 mono_mb_emit_ldloc (mb, bounds);
10203 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10204 mono_mb_emit_byte (mb, CEE_ADD);
10205 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10206 mono_mb_emit_byte (mb, CEE_SUB);
10207 mono_mb_emit_stloc (mb, ind);
10208 /* if (ind >= bounds [0].length) goto exeception; */
10209 mono_mb_emit_ldloc (mb, ind);
10210 mono_mb_emit_ldloc (mb, bounds);
10211 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10212 mono_mb_emit_byte (mb, CEE_ADD);
10213 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10214 /* note that we use unsigned comparison */
10215 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10217 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10218 * We could also decide to ignore the passed elem_size and get it
10219 * from the array object, to reduce the number of methods we generate:
10220 * the additional cost is 3 memory loads and a non-immediate mul.
10222 for (i = 1; i < rank; ++i) {
10223 /* realidx = idxi - bounds [i].lower_bound */
10224 mono_mb_emit_ldarg (mb, 1 + i);
10225 mono_mb_emit_ldloc (mb, bounds);
10226 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10227 mono_mb_emit_byte (mb, CEE_ADD);
10228 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10229 mono_mb_emit_byte (mb, CEE_SUB);
10230 mono_mb_emit_stloc (mb, realidx);
10231 /* if (realidx >= bounds [i].length) goto exeception; */
10232 mono_mb_emit_ldloc (mb, realidx);
10233 mono_mb_emit_ldloc (mb, bounds);
10234 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10235 mono_mb_emit_byte (mb, CEE_ADD);
10236 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10237 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10238 /* ind = ind * bounds [i].length + realidx */
10239 mono_mb_emit_ldloc (mb, ind);
10240 mono_mb_emit_ldloc (mb, bounds);
10241 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10242 mono_mb_emit_byte (mb, CEE_ADD);
10243 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10244 mono_mb_emit_byte (mb, CEE_MUL);
10245 mono_mb_emit_ldloc (mb, realidx);
10246 mono_mb_emit_byte (mb, CEE_ADD);
10247 mono_mb_emit_stloc (mb, ind);
10250 /* return array->vector + ind * element_size */
10251 mono_mb_emit_ldarg (mb, 0);
10252 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10253 mono_mb_emit_ldloc (mb, ind);
10255 mono_mb_emit_icon (mb, elem_size);
10257 /* Load arr->vtable->klass->sizes.element_class */
10258 mono_mb_emit_ldarg (mb, 0);
10259 mono_mb_emit_byte (mb, CEE_CONV_I);
10260 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10261 mono_mb_emit_byte (mb, CEE_ADD);
10262 mono_mb_emit_byte (mb, CEE_LDIND_I);
10263 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10264 mono_mb_emit_byte (mb, CEE_ADD);
10265 mono_mb_emit_byte (mb, CEE_LDIND_I);
10266 /* sizes is an union, so this reads sizes.element_size */
10267 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10268 mono_mb_emit_byte (mb, CEE_ADD);
10269 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10271 mono_mb_emit_byte (mb, CEE_MUL);
10272 mono_mb_emit_byte (mb, CEE_ADD);
10273 mono_mb_emit_byte (mb, CEE_RET);
10275 /* patch the branches to get here and throw */
10276 for (i = 1; i < rank; ++i) {
10277 mono_mb_patch_branch (mb, branch_positions [i]);
10279 mono_mb_patch_branch (mb, branch_pos);
10280 /* throw exception */
10281 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10283 g_free (branch_positions);
10284 #endif /* DISABLE_JIT */
10286 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10287 info->d.element_addr.rank = rank;
10288 info->d.element_addr.elem_size = elem_size;
10289 ret = mono_mb_create (mb, sig, 4, info);
10292 /* cache the result */
10294 mono_marshal_lock ();
10295 for (i = 0; i < elem_addr_cache_next; ++i) {
10296 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10297 /* FIXME: free ret */
10298 ret = elem_addr_cache [i].method;
10304 if (elem_addr_cache_next >= elem_addr_cache_size) {
10305 int new_size = elem_addr_cache_size + 4;
10306 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10307 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10308 g_free (elem_addr_cache);
10309 elem_addr_cache = new_array;
10310 elem_addr_cache_size = new_size;
10312 elem_addr_cache [elem_addr_cache_next].rank = rank;
10313 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10314 elem_addr_cache [elem_addr_cache_next].method = ret;
10315 elem_addr_cache_next ++;
10317 mono_marshal_unlock ();
10322 * mono_marshal_get_array_accessor_wrapper:
10324 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10327 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10329 MonoMethodSignature *sig;
10330 MonoMethodBuilder *mb;
10334 MonoGenericContext *ctx = NULL;
10335 MonoMethod *orig_method = NULL;
10336 MonoGenericContainer *container = NULL;
10340 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10341 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10342 * FIXME: Use generic methods.
10349 g_assert_not_reached ();
10351 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10352 if ((res = mono_marshal_find_in_cache (cache, method)))
10356 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10359 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10361 #ifndef DISABLE_JIT
10362 /* Call the method */
10364 mono_mb_emit_ldarg (mb, 0);
10365 for (i = 0; i < sig->param_count; i++)
10366 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10370 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10371 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10373 mono_mb_emit_managed_call (mb, method, NULL);
10375 mono_mb_emit_byte (mb, CEE_RET);
10378 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10379 info->d.array_accessor.method = method;
10383 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10384 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10386 res = mono_mb_create_and_cache_full (cache, method,
10387 mb, sig, sig->param_count + 16,
10396 mono_marshal_alloc (gulong size, MonoError *error)
10400 mono_error_init (error);
10403 res = CoTaskMemAlloc (size);
10405 res = g_try_malloc ((gulong)size);
10407 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10412 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10414 ves_icall_marshal_alloc (gulong size)
10417 void *ret = mono_marshal_alloc (size, &error);
10418 if (!mono_error_ok (&error)) {
10419 mono_error_set_pending_exception (&error);
10427 mono_marshal_free (gpointer ptr)
10430 CoTaskMemFree (ptr);
10437 mono_marshal_free_array (gpointer *ptr, int size)
10444 for (i = 0; i < size; i++)
10450 mono_marshal_string_to_utf16 (MonoString *s)
10452 return s ? mono_string_chars (s) : NULL;
10455 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10457 mono_marshal_string_to_utf16_copy (MonoString *s)
10463 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10464 if (!mono_error_ok (&error)) {
10465 mono_error_set_pending_exception (&error);
10468 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10469 res [mono_string_length (s)] = 0;
10475 * mono_marshal_set_last_error:
10477 * This function is invoked to set the last error value from a P/Invoke call
10478 * which has SetLastError set.
10481 mono_marshal_set_last_error (void)
10484 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10486 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10491 mono_marshal_set_last_error_windows (int error)
10494 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10499 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10500 gpointer dest, gint32 length)
10505 MONO_CHECK_ARG_NULL (src,);
10506 MONO_CHECK_ARG_NULL (dest,);
10508 if (src->obj.vtable->klass->rank != 1) {
10509 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10512 if (start_index < 0) {
10513 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10517 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10520 if (start_index + length > mono_array_length (src)) {
10521 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10525 element_size = mono_array_element_size (src->obj.vtable->klass);
10527 /* no references should be involved */
10528 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10530 memcpy (dest, source_addr, length * element_size);
10534 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10535 MonoArray *dest, gint32 length)
10540 MONO_CHECK_ARG_NULL (src,);
10541 MONO_CHECK_ARG_NULL (dest,);
10543 if (dest->obj.vtable->klass->rank != 1) {
10544 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10547 if (start_index < 0) {
10548 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10552 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10555 if (start_index + length > mono_array_length (dest)) {
10556 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10559 element_size = mono_array_element_size (dest->obj.vtable->klass);
10561 /* no references should be involved */
10562 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10564 memcpy (dest_addr, src, length * element_size);
10568 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10573 return mono_string_new (mono_domain_get (), ptr);
10577 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10580 MonoString *result = NULL;
10581 mono_error_init (&error);
10583 mono_error_set_argument_null (&error, "ptr", "");
10585 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10586 mono_error_set_pending_exception (&error);
10591 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10594 MonoString *res = NULL;
10595 MonoDomain *domain = mono_domain_get ();
10605 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10606 if (!mono_error_ok (&error)) {
10607 mono_error_set_pending_exception (&error);
10614 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10617 MonoString *res = NULL;
10618 MonoDomain *domain = mono_domain_get ();
10620 mono_error_init (&error);
10624 mono_error_set_argument_null (&error, "ptr", "");
10626 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10629 if (!mono_error_ok (&error))
10630 mono_error_set_pending_exception (&error);
10635 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10637 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10641 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10647 MONO_CHECK_ARG_NULL (rtype, 0);
10649 type = rtype->type;
10650 klass = mono_class_from_mono_type (type);
10651 if (!mono_class_init (klass)) {
10652 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10656 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10658 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10659 return sizeof (gpointer);
10660 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10662 MonoException *exc;
10664 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10665 exc = mono_get_exception_argument ("t", msg);
10667 mono_set_pending_exception (exc);
10671 return mono_class_native_size (klass, NULL);
10675 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10678 MonoMethod *method;
10681 MONO_CHECK_ARG_NULL (obj,);
10682 MONO_CHECK_ARG_NULL (dst,);
10684 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10688 pa [2] = &delete_old;
10690 mono_runtime_invoke_checked (method, NULL, pa, &error);
10691 if (!mono_error_ok (&error))
10692 mono_error_set_pending_exception (&error);
10696 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10698 MonoMethod *method;
10701 mono_error_init (error);
10703 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10708 mono_runtime_invoke_checked (method, NULL, pa, error);
10712 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10717 MONO_CHECK_ARG_NULL (src,);
10718 MONO_CHECK_ARG_NULL (dst,);
10720 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10722 if (t->type == MONO_TYPE_VALUETYPE) {
10723 MonoException *exc;
10726 tmp = g_strdup_printf ("Destination is a boxed value type.");
10727 exc = mono_get_exception_argument ("dst", tmp);
10730 mono_set_pending_exception (exc);
10734 ptr_to_structure (src, dst, &error);
10735 if (!mono_error_ok (&error))
10736 mono_error_set_pending_exception (&error);
10740 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10744 MonoDomain *domain = mono_domain_get ();
10749 MONO_CHECK_ARG_NULL (type, NULL);
10751 klass = mono_class_from_mono_type (type->type);
10752 if (!mono_class_init (klass)) {
10753 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10757 res = mono_object_new_checked (domain, klass, &error);
10758 if (!mono_error_ok (&error)) {
10759 mono_error_set_pending_exception (&error);
10763 ptr_to_structure (src, res, &error);
10764 if (!mono_error_ok (&error)) {
10765 mono_error_set_pending_exception (&error);
10773 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10775 MonoMarshalType *info;
10778 int match_index = -1;
10780 MONO_CHECK_ARG_NULL (type, 0);
10781 MONO_CHECK_ARG_NULL (field_name, 0);
10783 fname = mono_string_to_utf8 (field_name);
10784 klass = mono_class_from_mono_type (type->type);
10785 if (!mono_class_init (klass)) {
10786 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10790 while (klass && match_index == -1) {
10791 MonoClassField* field;
10793 gpointer iter = NULL;
10794 while ((field = mono_class_get_fields (klass, &iter))) {
10795 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10797 if (!strcmp (fname, mono_field_get_name (field))) {
10804 if (match_index == -1)
10805 klass = klass->parent;
10810 if(match_index == -1) {
10811 MonoException* exc;
10814 /* Get back original class instance */
10815 klass = mono_class_from_mono_type (type->type);
10817 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10818 exc = mono_get_exception_argument ("fieldName", tmp);
10821 mono_set_pending_exception ((MonoException*)exc);
10825 info = mono_marshal_load_type_info (klass);
10826 return info->fields [match_index].offset;
10830 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10835 tres = mono_string_to_utf8 (string);
10839 len = strlen (tres) + 1;
10840 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10841 memcpy (ret, tres, len);
10846 return mono_string_to_utf8 (string);
10851 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10853 if (string == NULL)
10856 #ifdef TARGET_WIN32
10857 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10858 ((mono_string_length (string) + 1) * 2);
10860 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10862 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10863 res [mono_string_length (string)] = 0;
10869 mono_struct_delete_old (MonoClass *klass, char *ptr)
10871 MonoMarshalType *info;
10874 info = mono_marshal_load_type_info (klass);
10876 for (i = 0; i < info->num_fields; i++) {
10877 MonoMarshalConv conv;
10878 MonoType *ftype = info->fields [i].field->type;
10881 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10884 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10885 klass->unicode, &conv);
10887 cpos = ptr + info->fields [i].offset;
10890 case MONO_MARSHAL_CONV_NONE:
10891 if (MONO_TYPE_ISSTRUCT (ftype)) {
10892 mono_struct_delete_old (ftype->data.klass, cpos);
10896 case MONO_MARSHAL_CONV_STR_LPWSTR:
10897 /* We assume this field points inside a MonoString */
10899 case MONO_MARSHAL_CONV_STR_LPTSTR:
10900 #ifdef TARGET_WIN32
10901 /* We assume this field points inside a MonoString
10905 case MONO_MARSHAL_CONV_STR_LPSTR:
10906 case MONO_MARSHAL_CONV_STR_BSTR:
10907 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10908 case MONO_MARSHAL_CONV_STR_TBSTR:
10909 mono_marshal_free (*(gpointer *)cpos);
10919 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10923 MONO_CHECK_ARG_NULL (src,);
10924 MONO_CHECK_ARG_NULL (type,);
10926 klass = mono_class_from_mono_type (type->type);
10927 if (!mono_class_init (klass)) {
10928 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10932 mono_struct_delete_old (klass, (char *)src);
10936 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10939 size_t s = (size_t)size;
10942 /* This returns a valid pointer for size 0 on MS.NET */
10946 res = GlobalAlloc (GMEM_FIXED, s);
10948 res = g_try_malloc (s);
10951 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10959 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10962 size_t s = (size_t)size;
10965 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10970 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10972 res = g_try_realloc (ptr, s);
10975 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10983 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10993 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10998 res = CoTaskMemAlloc (size);
11000 if ((gulong)size == 0)
11001 /* This returns a valid pointer for size 0 on MS.NET */
11004 res = g_try_malloc ((gulong)size);
11007 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11014 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11017 CoTaskMemFree (ptr);
11024 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11029 res = CoTaskMemRealloc (ptr, size);
11031 res = g_try_realloc (ptr, (gulong)size);
11034 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11041 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11043 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11047 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11049 MonoClass *klass = mono_type_get_class (type->type);
11050 if (!mono_class_init (klass)) {
11051 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11055 return mono_ftnptr_to_delegate (klass, ftn);
11059 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11061 return mono_delegate_to_ftnptr (delegate);
11065 * mono_marshal_is_loading_type_info:
11067 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11071 mono_marshal_is_loading_type_info (MonoClass *klass)
11073 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11075 return g_slist_find (loads_list, klass) != NULL;
11079 * mono_marshal_load_type_info:
11081 * Initialize klass->marshal_info using information from metadata. This function can
11082 * recursively call itself, and the caller is responsible to avoid that by calling
11083 * mono_marshal_is_loading_type_info () beforehand.
11085 * LOCKING: Acquires the loader lock.
11088 mono_marshal_load_type_info (MonoClass* klass)
11091 guint32 native_size = 0, min_align = 1, packing;
11092 MonoMarshalType *info;
11093 MonoClassField* field;
11096 GSList *loads_list;
11098 g_assert (klass != NULL);
11100 if (klass->marshal_info)
11101 return klass->marshal_info;
11103 if (!klass->inited)
11104 mono_class_init (klass);
11106 if (klass->marshal_info)
11107 return klass->marshal_info;
11110 * This function can recursively call itself, so we keep the list of classes which are
11111 * under initialization in a TLS list.
11113 g_assert (!mono_marshal_is_loading_type_info (klass));
11114 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11115 loads_list = g_slist_prepend (loads_list, klass);
11116 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11119 while ((field = mono_class_get_fields (klass, &iter))) {
11120 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11122 if (mono_field_is_deleted (field))
11127 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11129 /* The mempool is protected by the loader lock */
11130 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11131 info->num_fields = count;
11133 /* Try to find a size for this type in metadata */
11134 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11136 if (klass->parent) {
11137 int parent_size = mono_class_native_size (klass->parent, NULL);
11139 /* Add parent size to real size */
11140 native_size += parent_size;
11141 info->native_size = parent_size;
11144 packing = klass->packing_size ? klass->packing_size : 8;
11147 while ((field = mono_class_get_fields (klass, &iter))) {
11151 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11154 if (mono_field_is_deleted (field))
11156 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11157 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11158 NULL, NULL, &info->fields [j].mspec);
11160 info->fields [j].field = field;
11162 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11163 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11164 /* This field is a hack inserted by MCS to empty structures */
11169 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11170 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11171 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11172 &align, TRUE, klass->unicode);
11173 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11174 min_align = MAX (align, min_align);
11175 info->fields [j].offset = info->native_size;
11176 info->fields [j].offset += align - 1;
11177 info->fields [j].offset &= ~(align - 1);
11178 info->native_size = info->fields [j].offset + size;
11180 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11181 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11182 &align, TRUE, klass->unicode);
11183 min_align = MAX (align, min_align);
11184 info->fields [j].offset = field->offset - sizeof (MonoObject);
11185 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11191 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11192 info->native_size = MAX (native_size, info->native_size);
11194 * If the provided Size is equal or larger than the calculated size, and there
11195 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11197 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11198 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11201 min_align = MIN (min_align, packing);
11205 if (info->native_size & (min_align - 1)) {
11206 info->native_size += min_align - 1;
11207 info->native_size &= ~(min_align - 1);
11210 info->min_align = min_align;
11212 /* Update the class's blittable info, if the layouts don't match */
11213 if (info->native_size != mono_class_value_size (klass, NULL))
11214 klass->blittable = FALSE;
11216 /* If this is an array type, ensure that we have element info */
11217 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11218 mono_marshal_load_type_info (klass->element_class);
11221 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11222 loads_list = g_slist_remove (loads_list, klass);
11223 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11225 mono_marshal_lock ();
11226 if (!klass->marshal_info) {
11227 /*We do double-checking locking on marshal_info */
11228 mono_memory_barrier ();
11229 klass->marshal_info = info;
11231 mono_marshal_unlock ();
11233 return klass->marshal_info;
11237 * mono_class_native_size:
11240 * Returns: the native size of an object instance (when marshaled
11241 * to unmanaged code)
11244 mono_class_native_size (MonoClass *klass, guint32 *align)
11246 if (!klass->marshal_info) {
11247 if (mono_marshal_is_loading_type_info (klass)) {
11252 mono_marshal_load_type_info (klass);
11257 *align = klass->marshal_info->min_align;
11259 return klass->marshal_info->native_size;
11263 * mono_type_native_stack_size:
11264 * @t: the type to return the size it uses on the stack
11266 * Returns: the number of bytes required to hold an instance of this
11267 * type on the native stack
11270 mono_type_native_stack_size (MonoType *t, guint32 *align)
11274 g_assert (t != NULL);
11280 *align = sizeof (gpointer);
11281 return sizeof (gpointer);
11285 case MONO_TYPE_BOOLEAN:
11286 case MONO_TYPE_CHAR:
11297 case MONO_TYPE_STRING:
11298 case MONO_TYPE_OBJECT:
11299 case MONO_TYPE_CLASS:
11300 case MONO_TYPE_SZARRAY:
11301 case MONO_TYPE_PTR:
11302 case MONO_TYPE_FNPTR:
11303 case MONO_TYPE_ARRAY:
11304 *align = sizeof (gpointer);
11305 return sizeof (gpointer);
11310 *align = MONO_ABI_ALIGNOF (double);
11314 *align = MONO_ABI_ALIGNOF (gint64);
11316 case MONO_TYPE_GENERICINST:
11317 if (!mono_type_generic_inst_is_valuetype (t)) {
11318 *align = sizeof (gpointer);
11319 return sizeof (gpointer);
11322 case MONO_TYPE_TYPEDBYREF:
11323 case MONO_TYPE_VALUETYPE: {
11325 MonoClass *klass = mono_class_from_mono_type (t);
11327 if (klass->enumtype)
11328 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11330 size = mono_class_native_size (klass, align);
11331 *align = *align + 3;
11341 g_error ("type 0x%02x unknown", t->type);
11347 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11348 gboolean as_field, gboolean unicode)
11350 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11353 switch (native_type) {
11354 case MONO_NATIVE_BOOLEAN:
11357 case MONO_NATIVE_I1:
11358 case MONO_NATIVE_U1:
11361 case MONO_NATIVE_I2:
11362 case MONO_NATIVE_U2:
11363 case MONO_NATIVE_VARIANTBOOL:
11366 case MONO_NATIVE_I4:
11367 case MONO_NATIVE_U4:
11368 case MONO_NATIVE_ERROR:
11371 case MONO_NATIVE_I8:
11372 case MONO_NATIVE_U8:
11373 *align = MONO_ABI_ALIGNOF (gint64);
11375 case MONO_NATIVE_R4:
11378 case MONO_NATIVE_R8:
11379 *align = MONO_ABI_ALIGNOF (double);
11381 case MONO_NATIVE_INT:
11382 case MONO_NATIVE_UINT:
11383 case MONO_NATIVE_LPSTR:
11384 case MONO_NATIVE_LPWSTR:
11385 case MONO_NATIVE_LPTSTR:
11386 case MONO_NATIVE_BSTR:
11387 case MONO_NATIVE_ANSIBSTR:
11388 case MONO_NATIVE_TBSTR:
11389 case MONO_NATIVE_LPARRAY:
11390 case MONO_NATIVE_SAFEARRAY:
11391 case MONO_NATIVE_IUNKNOWN:
11392 case MONO_NATIVE_IDISPATCH:
11393 case MONO_NATIVE_INTERFACE:
11394 case MONO_NATIVE_ASANY:
11395 case MONO_NATIVE_FUNC:
11396 case MONO_NATIVE_LPSTRUCT:
11397 *align = MONO_ABI_ALIGNOF (gpointer);
11398 return sizeof (gpointer);
11399 case MONO_NATIVE_STRUCT:
11400 klass = mono_class_from_mono_type (type);
11401 if (klass == mono_defaults.object_class &&
11402 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11406 return mono_class_native_size (klass, align);
11407 case MONO_NATIVE_BYVALTSTR: {
11408 int esize = unicode ? 2: 1;
11411 return mspec->data.array_data.num_elem * esize;
11413 case MONO_NATIVE_BYVALARRAY: {
11414 // FIXME: Have to consider ArraySubType
11416 klass = mono_class_from_mono_type (type);
11417 if (klass->element_class == mono_defaults.char_class) {
11418 esize = unicode ? 2 : 1;
11421 esize = mono_class_native_size (klass->element_class, align);
11424 return mspec->data.array_data.num_elem * esize;
11426 case MONO_NATIVE_CUSTOM:
11427 *align = sizeof (gpointer);
11428 return sizeof (gpointer);
11430 case MONO_NATIVE_CURRENCY:
11431 case MONO_NATIVE_VBBYREFSTR:
11433 g_error ("native type %02x not implemented", native_type);
11436 g_assert_not_reached ();
11440 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11442 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11451 t = &o->vtable->klass->byval_arg;
11455 case MONO_TYPE_PTR:
11458 case MONO_TYPE_BOOLEAN:
11461 case MONO_TYPE_CHAR:
11466 return mono_object_unbox (o);
11468 case MONO_TYPE_STRING:
11469 switch (string_encoding) {
11470 case MONO_NATIVE_LPWSTR:
11471 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11473 case MONO_NATIVE_LPSTR:
11474 return mono_string_to_lpstr ((MonoString*)o);
11477 g_warning ("marshaling conversion %d not implemented", string_encoding);
11478 g_assert_not_reached ();
11481 case MONO_TYPE_CLASS:
11482 case MONO_TYPE_VALUETYPE: {
11483 MonoMethod *method;
11486 MonoBoolean delete_old = FALSE;
11488 klass = t->data.klass;
11490 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11493 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11494 klass->blittable || klass->enumtype))
11495 return mono_object_unbox (o);
11497 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11498 if (!mono_error_ok (&error)) {
11499 mono_error_set_pending_exception (&error);
11503 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11504 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11508 pa [2] = &delete_old;
11510 mono_runtime_invoke_checked (method, NULL, pa, &error);
11511 if (!mono_error_ok (&error)) {
11512 mono_error_set_pending_exception (&error);
11522 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11526 /* This is a JIT icall, it sets the pending exception */
11528 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11537 t = &o->vtable->klass->byval_arg;
11539 case MONO_TYPE_STRING:
11540 switch (string_encoding) {
11541 case MONO_NATIVE_LPWSTR:
11542 case MONO_NATIVE_LPSTR:
11543 mono_marshal_free (ptr);
11546 g_warning ("marshaling conversion %d not implemented", string_encoding);
11547 g_assert_not_reached ();
11550 case MONO_TYPE_CLASS:
11551 case MONO_TYPE_VALUETYPE: {
11552 klass = t->data.klass;
11554 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11555 klass->blittable || klass->enumtype))
11558 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11559 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11565 mono_runtime_invoke_checked (method, NULL, pa, &error);
11566 if (!mono_error_ok (&error)) {
11567 mono_error_set_pending_exception (&error);
11572 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11573 mono_struct_delete_old (klass, (char *)ptr);
11576 mono_marshal_free (ptr);
11585 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11587 MonoMethodSignature *sig, *csig;
11588 MonoMethodBuilder *mb;
11593 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11594 mb->method->slot = -1;
11596 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11597 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11599 sig = mono_method_signature (method);
11600 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11601 csig->generic_param_count = 0;
11603 #ifndef DISABLE_JIT
11604 mono_mb_emit_ldarg (mb, 0);
11605 for (i = 0; i < csig->param_count; i++)
11606 mono_mb_emit_ldarg (mb, i + 1);
11607 mono_mb_emit_managed_call (mb, method, NULL);
11608 mono_mb_emit_byte (mb, CEE_RET);
11610 /* We can corlib internal methods */
11611 mb->skip_visibility = TRUE;
11613 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11614 info->d.generic_array_helper.method = method;
11615 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11623 * The mono_win32_compat_* functions are implementations of inline
11624 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11625 * although not exported by kernel32.
11627 * We map the appropiate kernel32 entries to these functions using
11628 * dllmaps declared in the global etc/mono/config.
11632 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11634 if (!dest || !source)
11637 memcpy (dest, source, length);
11641 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11643 memset (dest, fill, length);
11647 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11649 if (!dest || !source)
11652 memmove (dest, source, length);
11656 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11658 memset (dest, 0, length);
11662 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11667 for (i = 0; i < len; ++i)
11671 g_assert (i < len);
11674 while (byte && !(byte & 1))
11676 g_assert (byte == 1);
11679 *bitmask = buf [i];
11683 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11685 MonoMethodBuilder *mb;
11686 MonoMethodSignature *sig, *csig;
11687 MonoExceptionClause *clause;
11692 int i, param_count, sig_size, pos_leave;
11696 // FIXME: we need to store the exception into a MonoHandle
11697 g_assert (!mono_threads_is_coop_enabled ());
11699 klass = method->klass;
11700 image = method->klass->image;
11702 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11704 if ((res = mono_marshal_find_in_cache (cache, method)))
11707 sig = mono_method_signature (method);
11708 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11710 /* add "this" and exception param */
11711 param_count = sig->param_count + sig->hasthis + 1;
11713 /* dup & extend signature */
11714 csig = mono_metadata_signature_alloc (image, param_count);
11715 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11716 memcpy (csig, sig, sig_size);
11717 csig->param_count = param_count;
11720 csig->call_convention = MONO_CALL_DEFAULT;
11722 if (sig->hasthis) {
11724 csig->params [0] = &klass->byval_arg;
11725 /* move params up by one */
11726 for (i = 0; i < sig->param_count; i++)
11727 csig->params [i + 1] = sig->params [i];
11730 /* setup exception param as byref+[out] */
11731 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11732 &mono_defaults.exception_class->byval_arg);
11733 csig->params [param_count - 1]->byref = 1;
11734 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11736 /* convert struct return to object */
11737 if (MONO_TYPE_ISSTRUCT (sig->ret))
11738 csig->ret = &mono_defaults.object_class->byval_arg;
11740 #ifndef DISABLE_JIT
11741 /* local 0 (temp for exception object) */
11742 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11744 /* local 1 (temp for result) */
11745 if (!MONO_TYPE_IS_VOID (sig->ret))
11746 mono_mb_add_local (mb, sig->ret);
11748 /* clear exception arg */
11749 mono_mb_emit_ldarg (mb, param_count - 1);
11750 mono_mb_emit_byte (mb, CEE_LDNULL);
11751 mono_mb_emit_byte (mb, CEE_STIND_REF);
11754 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11755 clause->try_offset = mono_mb_get_label (mb);
11757 /* push method's args */
11758 for (i = 0; i < param_count - 1; i++) {
11762 mono_mb_emit_ldarg (mb, i);
11764 /* get the byval type of the param */
11765 klass = mono_class_from_mono_type (csig->params [i]);
11766 type = &klass->byval_arg;
11768 /* unbox struct args */
11769 if (MONO_TYPE_ISSTRUCT (type)) {
11770 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11772 /* byref args & and the "this" arg must remain a ptr.
11773 Otherwise make a copy of the value type */
11774 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11775 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11777 csig->params [i] = &mono_defaults.object_class->byval_arg;
11782 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11783 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11785 mono_mb_emit_op (mb, CEE_CALL, method);
11787 /* save result at local 1 */
11788 if (!MONO_TYPE_IS_VOID (sig->ret))
11789 mono_mb_emit_stloc (mb, 1);
11791 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11794 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11795 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11796 clause->data.catch_class = mono_defaults.object_class;
11798 clause->handler_offset = mono_mb_get_label (mb);
11800 /* store exception at local 0 */
11801 mono_mb_emit_stloc (mb, 0);
11802 mono_mb_emit_ldarg (mb, param_count - 1);
11803 mono_mb_emit_ldloc (mb, 0);
11804 mono_mb_emit_byte (mb, CEE_STIND_REF);
11805 mono_mb_emit_branch (mb, CEE_LEAVE);
11807 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11809 mono_mb_set_clauses (mb, 1, clause);
11811 mono_mb_patch_branch (mb, pos_leave);
11814 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11815 mono_mb_emit_ldloc (mb, 1);
11817 /* box the return value */
11818 if (MONO_TYPE_ISSTRUCT (sig->ret))
11819 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11822 mono_mb_emit_byte (mb, CEE_RET);
11825 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11832 * mono_marshal_free_dynamic_wrappers:
11834 * Free wrappers of the dynamic method METHOD.
11837 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11839 MonoImage *image = method->klass->image;
11841 g_assert (method_is_dynamic (method));
11843 /* This could be called during shutdown */
11844 if (marshal_mutex_initialized)
11845 mono_marshal_lock ();
11847 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11848 * they could be shared with other methods ?
11850 if (image->wrapper_caches.runtime_invoke_direct_cache)
11851 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11852 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11853 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11854 // FIXME: Need to clear the caches in other images as well
11855 if (image->delegate_bound_static_invoke_cache)
11856 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11858 if (marshal_mutex_initialized)
11859 mono_marshal_unlock ();
11863 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11865 g_assert (ftnptr_eh_callback);
11866 ftnptr_eh_callback (gchandle);
11870 ftnptr_eh_callback_default (guint32 gchandle)
11872 MonoException *exc;
11873 gpointer stackdata;
11875 g_assert (gchandle >= 0);
11877 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11879 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11881 mono_gchandle_free (gchandle);
11883 mono_raise_exception (exc);
11887 * mono_install_ftnptr_eh_callback:
11889 * Install a callback that should be called when there is a managed exception
11890 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11891 * managed exception to a native exception, to properly unwind the native
11892 * stack; this native exception will then be converted back to a managed
11893 * exception in their managed-to-native wrapper.
11896 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11898 ftnptr_eh_callback = callback;