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;
83 delegate_hash_table_add (MonoDelegate *d);
86 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
89 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
92 mono_struct_delete_old (MonoClass *klass, char *ptr);
95 mono_marshal_string_to_utf16 (MonoString *s);
98 mono_marshal_string_to_utf16_copy (MonoString *s);
101 mono_string_to_lpstr (MonoString *string_obj);
103 static MonoStringBuilder *
104 mono_string_utf8_to_builder2 (char *text);
106 static MonoStringBuilder *
107 mono_string_utf16_to_builder2 (gunichar2 *text);
110 mono_string_new_len_wrapper (const char *text, guint length);
113 mono_string_from_byvalstr (const char *data, int len);
116 mono_string_from_byvalwstr (gunichar2 *data, int len);
119 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
122 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
125 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
128 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
130 static MonoAsyncResult *
131 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
137 mono_marshal_set_last_error_windows (int error);
140 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
142 static void init_safe_handle (void);
145 ves_icall_marshal_alloc (gulong size);
148 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
151 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
154 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
157 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
160 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
163 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
166 mono_delegate_to_ftnptr (MonoDelegate *delegate);
169 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
172 mono_array_to_savearray (MonoArray *array);
175 mono_array_to_lparray (MonoArray *array);
178 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
181 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
184 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
187 mono_array_to_savearray (MonoArray *array);
190 mono_array_to_lparray (MonoArray *array);
193 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 /* Lazy class loading functions */
196 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
197 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
198 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
199 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
201 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
202 static MonoMethod *sh_dangerous_add_ref;
203 static MonoMethod *sh_dangerous_release;
208 sh_dangerous_add_ref = mono_class_get_method_from_name (
209 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
210 sh_dangerous_release = mono_class_get_method_from_name (
211 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
215 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
217 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
219 mono_register_jit_icall (func, name, sig, no_wrapper);
223 mono_signature_no_pinvoke (MonoMethod *method)
225 MonoMethodSignature *sig = mono_method_signature (method);
227 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
228 sig->pinvoke = FALSE;
235 mono_marshal_init_tls (void)
237 mono_native_tls_alloc (&last_error_tls_id, NULL);
238 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
242 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
245 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
246 mono_error_set_pending_exception (&error);
251 mono_marshal_init (void)
253 static gboolean module_initialized = FALSE;
255 if (!module_initialized) {
256 module_initialized = TRUE;
257 mono_os_mutex_init_recursive (&marshal_mutex);
258 marshal_mutex_initialized = TRUE;
260 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
261 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
262 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
263 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
264 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
265 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
266 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
267 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
268 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
269 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
270 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
271 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
272 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
273 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
274 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
275 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
276 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
277 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
278 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
279 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
280 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
281 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
282 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
283 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
284 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
285 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
286 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
287 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
288 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
289 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
290 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
291 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
292 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
293 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
294 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
295 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
296 register_icall (g_free, "g_free", "void ptr", FALSE);
297 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
298 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
299 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
300 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
301 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
302 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
303 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
304 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
305 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
306 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
308 mono_cominterop_init ();
309 mono_remoting_init ();
311 if (mono_threads_is_coop_enabled ()) {
312 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
313 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
314 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
315 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
321 mono_marshal_cleanup (void)
323 mono_cominterop_cleanup ();
325 mono_native_tls_free (load_type_info_tls_id);
326 mono_native_tls_free (last_error_tls_id);
327 mono_os_mutex_destroy (&marshal_mutex);
328 marshal_mutex_initialized = FALSE;
332 mono_marshal_lock_internal (void)
334 mono_marshal_lock ();
338 mono_marshal_unlock_internal (void)
340 mono_marshal_unlock ();
343 /* This is a JIT icall, it sets the pending exception and return NULL on error */
345 mono_delegate_to_ftnptr (MonoDelegate *delegate)
348 MonoMethod *method, *wrapper;
350 uint32_t target_handle = 0;
355 if (delegate->delegate_trampoline)
356 return delegate->delegate_trampoline;
358 klass = ((MonoObject *)delegate)->vtable->klass;
359 g_assert (klass->delegate);
361 method = delegate->method;
362 if (delegate->method_is_virtual)
363 method = mono_object_get_virtual_method (delegate->target, method);
365 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
366 const char *exc_class, *exc_arg;
369 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
371 g_assert (exc_class);
372 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
378 if (delegate->target) {
379 /* Produce a location which can be embedded in JITted code */
380 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
383 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
385 delegate->delegate_trampoline = mono_compile_method (wrapper);
387 // Add the delegate to the delegate hash table
388 delegate_hash_table_add (delegate);
390 /* when the object is collected, collect the dynamic method, too */
391 mono_object_register_finalizer ((MonoObject*)delegate, &error);
392 if (!mono_error_ok (&error)) {
393 mono_error_set_pending_exception (&error);
397 return delegate->delegate_trampoline;
401 * this hash table maps from a delegate trampoline object to a weak reference
402 * of the delegate. As an optimizations with a non-moving GC we store the
403 * object pointer itself, otherwise we use a GC handle.
405 static GHashTable *delegate_hash_table;
408 delegate_hash_table_new (void) {
409 return g_hash_table_new (NULL, NULL);
413 delegate_hash_table_remove (MonoDelegate *d)
415 guint32 gchandle = 0;
417 mono_marshal_lock ();
418 if (delegate_hash_table == NULL)
419 delegate_hash_table = delegate_hash_table_new ();
420 if (mono_gc_is_moving ())
421 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
422 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
423 mono_marshal_unlock ();
424 if (gchandle && mono_gc_is_moving ())
425 mono_gchandle_free (gchandle);
429 delegate_hash_table_add (MonoDelegate *d)
432 guint32 old_gchandle;
434 mono_marshal_lock ();
435 if (delegate_hash_table == NULL)
436 delegate_hash_table = delegate_hash_table_new ();
437 if (mono_gc_is_moving ()) {
438 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
439 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
440 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
442 mono_gchandle_free (old_gchandle);
444 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
446 mono_marshal_unlock ();
450 * mono_marshal_use_aot_wrappers:
452 * Instructs this module to use AOT compatible wrappers.
455 mono_marshal_use_aot_wrappers (gboolean use)
457 use_aot_wrappers = use;
461 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
464 MonoCustomAttrInfo *cinfo;
465 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
467 /* The attribute is only available in Net 2.0 */
468 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
470 * The pinvoke attributes are stored in a real custom attribute so we have to
473 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
474 if (!mono_error_ok (&error)) {
475 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
476 mono_error_cleanup (&error);
478 if (cinfo && !mono_runtime_get_no_exec ()) {
479 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
481 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
483 if (!mono_error_ok (&error)) {
484 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
485 mono_error_cleanup (&error);
489 mono_custom_attrs_free (cinfo);
494 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
496 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
505 mono_marshal_lock ();
506 if (delegate_hash_table == NULL)
507 delegate_hash_table = delegate_hash_table_new ();
509 if (mono_gc_is_moving ()) {
510 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
511 mono_marshal_unlock ();
513 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
517 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
518 mono_marshal_unlock ();
521 /* This is a native function, so construct a delegate for it */
522 MonoMethodSignature *sig;
524 MonoMarshalSpec **mspecs;
525 MonoMethod *invoke = mono_get_delegate_invoke (klass);
526 MonoMethodPInvoke piinfo;
527 MonoObject *this_obj;
530 if (use_aot_wrappers) {
531 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
532 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
533 if (!is_ok (&error)) {
534 mono_error_set_pending_exception (&error);
538 memset (&piinfo, 0, sizeof (piinfo));
539 parse_unmanaged_function_pointer_attr (klass, &piinfo);
541 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
542 mono_method_get_marshal_info (invoke, mspecs);
543 /* Freed below so don't alloc from mempool */
544 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
547 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
550 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
552 mono_metadata_free_marshal_spec (mspecs [i]);
557 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
558 if (!mono_error_ok (&error)) {
559 mono_error_set_pending_exception (&error);
562 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
565 if (d->object.vtable->domain != mono_domain_get ()) {
566 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
574 mono_delegate_free_ftnptr (MonoDelegate *delegate)
579 delegate_hash_table_remove (delegate);
581 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
583 if (!delegate->target) {
584 /* The wrapper method is shared between delegates -> no need to free it */
593 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
596 method = mono_jit_info_get_method (ji);
597 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
599 /*the target gchandle is the first entry after size and the wrapper itself.*/
600 gchandle = GPOINTER_TO_UINT (method_data [2]);
603 mono_gchandle_free (gchandle);
605 mono_runtime_free_method (mono_object_domain (delegate), method);
610 mono_string_from_byvalstr (const char *data, int max_len)
612 MonoDomain *domain = mono_domain_get ();
618 while (len < max_len - 1 && data [len])
621 return mono_string_new_len (domain, data, len);
624 /* This is a JIT icall, it sets the pending exception and return NULL on error */
626 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
629 MonoString *res = NULL;
630 MonoDomain *domain = mono_domain_get ();
636 while (data [len]) len++;
638 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
639 if (!mono_error_ok (&error)) {
640 mono_error_set_pending_exception (&error);
647 mono_array_to_savearray (MonoArray *array)
652 g_assert_not_reached ();
657 mono_array_to_lparray (MonoArray *array)
660 gpointer *nativeArray = NULL;
661 int nativeArraySize = 0;
671 klass = array->obj.vtable->klass;
673 switch (klass->element_class->byval_arg.type) {
675 g_assert_not_reached ();
677 case MONO_TYPE_CLASS:
678 nativeArraySize = array->max_length;
679 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
680 for(i = 0; i < nativeArraySize; ++i)
681 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
684 case MONO_TYPE_BOOLEAN:
697 case MONO_TYPE_VALUETYPE:
701 case MONO_TYPE_GENERICINST:
702 case MONO_TYPE_OBJECT:
703 case MONO_TYPE_ARRAY:
704 case MONO_TYPE_SZARRAY:
705 case MONO_TYPE_STRING:
707 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
708 g_assert_not_reached ();
711 return array->vector;
715 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
726 klass = array->obj.vtable->klass;
728 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
729 for(i = 0; i < array->max_length; ++i)
730 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
737 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
739 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
741 if (elclass == mono_defaults.byte_class) {
742 GError *error = NULL;
746 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
749 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
753 g_error_free (error);
756 g_assert_not_reached ();
760 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
762 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
765 /* This is a JIT icall, it sets the pending exception and returns on error */
767 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
769 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
771 if (elclass == mono_defaults.byte_class) {
773 GError *error = NULL;
775 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
777 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
778 g_error_free (error);
782 memcpy (native_arr, as, MIN (strlen (as), elnum));
785 g_assert_not_reached ();
790 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
792 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
795 static MonoStringBuilder *
796 mono_string_builder_new (int starting_string_length)
798 static MonoClass *string_builder_class;
799 static MonoMethod *sb_ctor;
800 static void *args [1];
803 int initial_len = starting_string_length;
809 MonoMethodDesc *desc;
812 string_builder_class = mono_class_get_string_builder_class ();
813 g_assert (string_builder_class);
814 desc = mono_method_desc_new (":.ctor(int)", FALSE);
815 m = mono_method_desc_search_in_class (desc, string_builder_class);
817 mono_method_desc_free (desc);
818 mono_memory_barrier ();
822 // We make a new array in the _to_builder function, so this
823 // array will always be garbage collected.
824 args [0] = &initial_len;
826 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
827 mono_error_assert_ok (&error);
830 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
831 g_assert (exc == NULL);
832 mono_error_assert_ok (&error);
834 g_assert (sb->chunkChars->max_length >= initial_len);
840 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
842 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
843 gunichar2 *charSrc = (gunichar2 *)text;
844 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
846 sb->chunkLength = string_len;
852 mono_string_utf16_to_builder2 (gunichar2 *text)
858 for (len = 0; text [len] != 0; ++len);
860 MonoStringBuilder *sb = mono_string_builder_new (len);
861 mono_string_utf16_to_builder (sb, text);
867 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
872 int len = strlen (text);
873 if (len > mono_string_builder_capacity (sb))
874 len = mono_string_builder_capacity (sb);
876 GError *error = NULL;
878 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
881 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
882 mono_string_utf16_to_builder_copy (sb, ut, copied);
884 g_error_free (error);
890 mono_string_utf8_to_builder2 (char *text)
895 int len = strlen (text);
896 MonoStringBuilder *sb = mono_string_builder_new (len);
897 mono_string_utf8_to_builder (sb, text);
904 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
910 for (len = 0; text [len] != 0; ++len);
912 if (len > mono_string_builder_capacity (sb))
913 len = mono_string_builder_capacity (sb);
915 mono_string_utf16_to_builder_copy (sb, text, len);
919 * mono_string_builder_to_utf8:
920 * @sb: the string builder
922 * Converts to utf8 the contents of the MonoStringBuilder.
924 * Returns: a utf8 string with the contents of the StringBuilder.
926 * The return value must be released with g_free.
928 * This is a JIT icall, it sets the pending exception and returns NULL on error.
931 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
934 GError *gerror = NULL;
939 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
941 guint str_len = mono_string_builder_string_length (sb);
943 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
946 g_error_free (gerror);
948 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
951 guint len = mono_string_builder_capacity (sb) + 1;
952 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
953 if (!mono_error_ok (&error)) {
956 mono_error_set_pending_exception (&error);
960 g_assert (str_len < len);
961 memcpy (res, tmp, str_len * sizeof (gchar));
971 * mono_string_builder_to_utf16:
972 * @sb: the string builder
974 * Converts to utf16 the contents of the MonoStringBuilder.
976 * Returns: a utf16 string with the contents of the StringBuilder.
978 * The return value must not be freed.
979 * This is a JIT icall, it sets the pending exception and returns NULL on error.
982 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
989 g_assert (sb->chunkChars);
991 guint len = mono_string_builder_capacity (sb);
996 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
997 if (!mono_error_ok (&error)) {
998 mono_error_set_pending_exception (&error);
1007 MonoStringBuilder* chunk = sb;
1009 if (chunk->chunkLength > 0) {
1010 // Check that we will not overrun our boundaries.
1011 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1013 if (chunk->chunkLength <= len) {
1014 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1016 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1019 len -= chunk->chunkLength;
1021 chunk = chunk->chunkPrevious;
1022 } while (chunk != NULL);
1027 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1029 mono_string_to_lpstr (MonoString *s)
1034 GError *error = NULL;
1040 as = CoTaskMemAlloc (1);
1045 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1047 MonoException *exc = mono_get_exception_argument ("string", error->message);
1048 g_error_free (error);
1049 mono_set_pending_exception (exc);
1052 as = CoTaskMemAlloc (len + 1);
1053 memcpy (as, tmp, len + 1);
1058 return mono_string_to_utf8 (s);
1063 mono_string_to_ansibstr (MonoString *string_obj)
1065 g_error ("UnmanagedMarshal.BStr is not implemented.");
1070 * mono_string_to_byvalstr:
1071 * @dst: Where to store the null-terminated utf8 decoded string.
1072 * @src: the MonoString to copy.
1073 * @size: the maximum number of bytes to copy.
1075 * Copies the MonoString pointed to by @src as a utf8 string
1076 * into @dst, it copies at most @size bytes into the destination.
1079 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1084 g_assert (dst != NULL);
1085 g_assert (size > 0);
1087 memset (dst, 0, size);
1091 s = mono_string_to_utf8 (src);
1092 len = MIN (size, strlen (s));
1095 memcpy (dst, s, len);
1100 * mono_string_to_byvalwstr:
1101 * @dst: Where to store the null-terminated utf16 decoded string.
1102 * @src: the MonoString to copy.
1103 * @size: the maximum number of bytes to copy.
1105 * Copies the MonoString pointed to by @src as a utf16 string into
1106 * @dst, it copies at most @size bytes into the destination (including
1107 * a terminating 16-bit zero terminator).
1110 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1114 g_assert (dst != NULL);
1115 g_assert (size > 1);
1118 memset (dst, 0, size * 2);
1122 len = MIN (size, (mono_string_length (src)));
1123 memcpy (dst, mono_string_chars (src), size * 2);
1124 if (size <= mono_string_length (src))
1126 *((gunichar2 *) dst + len) = 0;
1130 mono_string_new_len_wrapper (const char *text, guint length)
1132 return mono_string_new_len (mono_domain_get (), text, length);
1138 * mono_mb_emit_exception_marshal_directive:
1140 * This function assumes ownership of MSG, which should be malloc-ed.
1143 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1148 s = mono_image_strdup (mb->method->klass->image, msg);
1153 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1156 #endif /* !DISABLE_JIT */
1159 mono_type_to_ldind (MonoType *type)
1165 switch (type->type) {
1167 return CEE_LDIND_I1;
1169 case MONO_TYPE_BOOLEAN:
1170 return CEE_LDIND_U1;
1172 return CEE_LDIND_I2;
1174 case MONO_TYPE_CHAR:
1175 return CEE_LDIND_U2;
1177 return CEE_LDIND_I4;
1179 return CEE_LDIND_U4;
1183 case MONO_TYPE_FNPTR:
1185 case MONO_TYPE_CLASS:
1186 case MONO_TYPE_STRING:
1187 case MONO_TYPE_OBJECT:
1188 case MONO_TYPE_SZARRAY:
1189 case MONO_TYPE_ARRAY:
1190 return CEE_LDIND_REF;
1193 return CEE_LDIND_I8;
1195 return CEE_LDIND_R4;
1197 return CEE_LDIND_R8;
1198 case MONO_TYPE_VALUETYPE:
1199 if (type->data.klass->enumtype) {
1200 type = mono_class_enum_basetype (type->data.klass);
1204 case MONO_TYPE_TYPEDBYREF:
1206 case MONO_TYPE_GENERICINST:
1207 type = &type->data.generic_class->container_class->byval_arg;
1210 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1216 mono_type_to_stind (MonoType *type)
1222 switch (type->type) {
1225 case MONO_TYPE_BOOLEAN:
1226 return CEE_STIND_I1;
1229 case MONO_TYPE_CHAR:
1230 return CEE_STIND_I2;
1233 return CEE_STIND_I4;
1237 case MONO_TYPE_FNPTR:
1239 case MONO_TYPE_CLASS:
1240 case MONO_TYPE_STRING:
1241 case MONO_TYPE_OBJECT:
1242 case MONO_TYPE_SZARRAY:
1243 case MONO_TYPE_ARRAY:
1244 return CEE_STIND_REF;
1247 return CEE_STIND_I8;
1249 return CEE_STIND_R4;
1251 return CEE_STIND_R8;
1252 case MONO_TYPE_VALUETYPE:
1253 if (type->data.klass->enumtype) {
1254 type = mono_class_enum_basetype (type->data.klass);
1258 case MONO_TYPE_TYPEDBYREF:
1260 case MONO_TYPE_GENERICINST:
1261 type = &type->data.generic_class->container_class->byval_arg;
1264 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1272 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1275 case MONO_MARSHAL_CONV_BOOL_I4:
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1279 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1280 mono_mb_emit_byte (mb, 3);
1281 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1282 mono_mb_emit_byte (mb, CEE_BR_S);
1283 mono_mb_emit_byte (mb, 1);
1284 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1285 mono_mb_emit_byte (mb, CEE_STIND_I1);
1287 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1288 mono_mb_emit_ldloc (mb, 1);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1291 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1292 mono_mb_emit_byte (mb, 3);
1293 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1294 mono_mb_emit_byte (mb, CEE_BR_S);
1295 mono_mb_emit_byte (mb, 1);
1296 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1297 mono_mb_emit_byte (mb, CEE_STIND_I1);
1299 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1300 MonoClass *eklass = NULL;
1303 if (type->type == MONO_TYPE_SZARRAY) {
1304 eklass = type->data.klass;
1306 g_assert_not_reached ();
1309 esize = mono_class_native_size (eklass, NULL);
1311 /* create a new array */
1312 mono_mb_emit_ldloc (mb, 1);
1313 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1314 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1315 mono_mb_emit_byte (mb, CEE_STIND_I);
1317 if (eklass->blittable) {
1318 /* copy the elements */
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_byte (mb, CEE_LDIND_I);
1321 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1322 mono_mb_emit_byte (mb, CEE_ADD);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1325 mono_mb_emit_byte (mb, CEE_PREFIX1);
1326 mono_mb_emit_byte (mb, CEE_CPBLK);
1329 int array_var, src_var, dst_var, index_var;
1330 guint32 label2, label3;
1332 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1333 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1334 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1337 mono_mb_emit_ldloc (mb, 1);
1338 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1339 mono_mb_emit_stloc (mb, array_var);
1341 /* save the old src pointer */
1342 mono_mb_emit_ldloc (mb, 0);
1343 mono_mb_emit_stloc (mb, src_var);
1344 /* save the old dst pointer */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_stloc (mb, dst_var);
1348 /* Emit marshalling loop */
1349 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1350 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1351 mono_mb_emit_stloc (mb, index_var);
1354 label2 = mono_mb_get_label (mb);
1355 mono_mb_emit_ldloc (mb, index_var);
1356 mono_mb_emit_ldloc (mb, array_var);
1357 mono_mb_emit_byte (mb, CEE_LDLEN);
1358 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1360 /* src is already set */
1363 mono_mb_emit_ldloc (mb, array_var);
1364 mono_mb_emit_ldloc (mb, index_var);
1365 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1366 mono_mb_emit_stloc (mb, 1);
1368 /* Do the conversion */
1369 emit_struct_conv (mb, eklass, TRUE);
1372 mono_mb_emit_add_to_local (mb, index_var, 1);
1374 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1376 mono_mb_patch_branch (mb, label3);
1378 /* restore the old src pointer */
1379 mono_mb_emit_ldloc (mb, src_var);
1380 mono_mb_emit_stloc (mb, 0);
1381 /* restore the old dst pointer */
1382 mono_mb_emit_ldloc (mb, dst_var);
1383 mono_mb_emit_stloc (mb, 1);
1387 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1388 MonoClass *eclass = mono_defaults.char_class;
1390 /* create a new array */
1391 mono_mb_emit_ldloc (mb, 1);
1392 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1393 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1394 mono_mb_emit_byte (mb, CEE_STIND_REF);
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1398 mono_mb_emit_ldloc (mb, 0);
1399 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1400 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1403 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1404 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_ldloc (mb, 0);
1407 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1408 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1410 mono_mb_emit_ldloc (mb, 1);
1411 mono_mb_emit_ldloc (mb, 0);
1412 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1414 mono_mb_emit_byte (mb, CEE_STIND_REF);
1416 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1417 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1418 mono_mb_emit_ldloc (mb, 1);
1419 mono_mb_emit_ldloc (mb, 0);
1420 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1421 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1423 mono_mb_emit_ldloc (mb, 1);
1424 mono_mb_emit_ldloc (mb, 0);
1425 mono_mb_emit_icall (mb, mono_string_from_utf16);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 case MONO_MARSHAL_CONV_STR_LPTSTR:
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_byte (mb, CEE_LDIND_I);
1434 mono_mb_emit_icall (mb, mono_string_from_utf16);
1436 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1438 mono_mb_emit_byte (mb, CEE_STIND_REF);
1440 case MONO_MARSHAL_CONV_STR_LPSTR:
1441 mono_mb_emit_ldloc (mb, 1);
1442 mono_mb_emit_ldloc (mb, 0);
1443 mono_mb_emit_byte (mb, CEE_LDIND_I);
1444 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1445 mono_mb_emit_byte (mb, CEE_STIND_REF);
1447 case MONO_MARSHAL_CONV_STR_LPWSTR:
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_byte (mb, CEE_LDIND_I);
1451 mono_mb_emit_icall (mb, mono_string_from_utf16);
1452 mono_mb_emit_byte (mb, CEE_STIND_REF);
1454 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1455 MonoClass *klass = mono_class_from_mono_type (type);
1456 int src_var, dst_var;
1458 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1459 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1461 /* *dst = new object */
1462 mono_mb_emit_ldloc (mb, 1);
1463 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1464 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1465 mono_mb_emit_byte (mb, CEE_STIND_REF);
1467 /* save the old src pointer */
1468 mono_mb_emit_ldloc (mb, 0);
1469 mono_mb_emit_stloc (mb, src_var);
1470 /* save the old dst pointer */
1471 mono_mb_emit_ldloc (mb, 1);
1472 mono_mb_emit_stloc (mb, dst_var);
1474 /* dst = pointer to newly created object data */
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_byte (mb, CEE_LDIND_I);
1477 mono_mb_emit_icon (mb, sizeof (MonoObject));
1478 mono_mb_emit_byte (mb, CEE_ADD);
1479 mono_mb_emit_stloc (mb, 1);
1481 emit_struct_conv (mb, klass, TRUE);
1483 /* restore the old src pointer */
1484 mono_mb_emit_ldloc (mb, src_var);
1485 mono_mb_emit_stloc (mb, 0);
1486 /* restore the old dst pointer */
1487 mono_mb_emit_ldloc (mb, dst_var);
1488 mono_mb_emit_stloc (mb, 1);
1491 case MONO_MARSHAL_CONV_DEL_FTN: {
1492 MonoClass *klass = mono_class_from_mono_type (type);
1494 mono_mb_emit_ldloc (mb, 1);
1495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1496 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_I);
1499 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1500 mono_mb_emit_byte (mb, CEE_STIND_REF);
1503 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1504 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1508 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1509 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1510 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1511 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1513 #endif /* DISABLE_COM */
1515 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1517 * Passing SafeHandles as ref does not allow the unmanaged code
1518 * to change the SafeHandle value. If the value is changed,
1519 * we should issue a diagnostic exception (NotSupportedException)
1520 * that informs the user that changes to handles in unmanaged code
1523 * Since we currently have no access to the original
1524 * SafeHandle that was used during the marshalling,
1525 * for now we just ignore this, and ignore/discard any
1526 * changes that might have happened to the handle.
1531 case MONO_MARSHAL_CONV_HANDLEREF: {
1533 * Passing HandleRefs in a struct that is ref()ed does not
1534 * copy the values back to the HandleRef
1539 case MONO_MARSHAL_CONV_STR_BSTR:
1540 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1541 case MONO_MARSHAL_CONV_STR_TBSTR:
1542 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1544 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1546 mono_mb_emit_exception_marshal_directive (mb, msg);
1553 conv_to_icall (MonoMarshalConv conv)
1556 case MONO_MARSHAL_CONV_STR_LPWSTR:
1557 return mono_marshal_string_to_utf16;
1558 case MONO_MARSHAL_CONV_LPWSTR_STR:
1559 return mono_string_from_utf16;
1560 case MONO_MARSHAL_CONV_LPTSTR_STR:
1561 return mono_string_new_wrapper;
1562 case MONO_MARSHAL_CONV_LPSTR_STR:
1563 return mono_string_new_wrapper;
1564 case MONO_MARSHAL_CONV_STR_LPTSTR:
1566 return mono_marshal_string_to_utf16;
1568 return mono_string_to_lpstr;
1570 case MONO_MARSHAL_CONV_STR_LPSTR:
1571 return mono_string_to_lpstr;
1572 case MONO_MARSHAL_CONV_STR_BSTR:
1573 return mono_string_to_bstr;
1574 case MONO_MARSHAL_CONV_BSTR_STR:
1575 return mono_string_from_bstr;
1576 case MONO_MARSHAL_CONV_STR_TBSTR:
1577 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1578 return mono_string_to_ansibstr;
1579 case MONO_MARSHAL_CONV_SB_LPSTR:
1580 return mono_string_builder_to_utf8;
1581 case MONO_MARSHAL_CONV_SB_LPTSTR:
1583 return mono_string_builder_to_utf16;
1585 return mono_string_builder_to_utf8;
1587 case MONO_MARSHAL_CONV_SB_LPWSTR:
1588 return mono_string_builder_to_utf16;
1589 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1590 return mono_array_to_savearray;
1591 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1592 return mono_array_to_lparray;
1593 case MONO_MARSHAL_FREE_LPARRAY:
1594 return mono_free_lparray;
1595 case MONO_MARSHAL_CONV_DEL_FTN:
1596 return mono_delegate_to_ftnptr;
1597 case MONO_MARSHAL_CONV_FTN_DEL:
1598 return mono_ftnptr_to_delegate;
1599 case MONO_MARSHAL_CONV_LPSTR_SB:
1600 return mono_string_utf8_to_builder;
1601 case MONO_MARSHAL_CONV_LPTSTR_SB:
1603 return mono_string_utf16_to_builder;
1605 return mono_string_utf8_to_builder;
1607 case MONO_MARSHAL_CONV_LPWSTR_SB:
1608 return mono_string_utf16_to_builder;
1609 case MONO_MARSHAL_FREE_ARRAY:
1610 return mono_marshal_free_array;
1611 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1612 return mono_string_to_byvalstr;
1613 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1614 return mono_string_to_byvalwstr;
1616 g_assert_not_reached ();
1623 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1628 case MONO_MARSHAL_CONV_BOOL_I4:
1629 mono_mb_emit_ldloc (mb, 1);
1630 mono_mb_emit_ldloc (mb, 0);
1631 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1632 mono_mb_emit_byte (mb, CEE_STIND_I4);
1634 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1635 mono_mb_emit_ldloc (mb, 1);
1636 mono_mb_emit_ldloc (mb, 0);
1637 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1638 mono_mb_emit_byte (mb, CEE_NEG);
1639 mono_mb_emit_byte (mb, CEE_STIND_I2);
1641 case MONO_MARSHAL_CONV_STR_LPWSTR:
1642 case MONO_MARSHAL_CONV_STR_LPSTR:
1643 case MONO_MARSHAL_CONV_STR_LPTSTR:
1644 case MONO_MARSHAL_CONV_STR_BSTR:
1645 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1646 case MONO_MARSHAL_CONV_STR_TBSTR: {
1649 /* free space if free == true */
1650 mono_mb_emit_ldloc (mb, 2);
1651 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1652 mono_mb_emit_ldloc (mb, 1);
1653 mono_mb_emit_byte (mb, CEE_LDIND_I);
1654 mono_mb_emit_icall (mb, g_free);
1655 mono_mb_patch_short_branch (mb, pos);
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 mono_mb_emit_icall (mb, conv_to_icall (conv));
1661 mono_mb_emit_byte (mb, CEE_STIND_I);
1664 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1665 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1666 case MONO_MARSHAL_CONV_DEL_FTN:
1667 mono_mb_emit_ldloc (mb, 1);
1668 mono_mb_emit_ldloc (mb, 0);
1669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1670 mono_mb_emit_icall (mb, conv_to_icall (conv));
1671 mono_mb_emit_byte (mb, CEE_STIND_I);
1673 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1674 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1677 mono_mb_emit_ldloc (mb, 1); /* dst */
1678 mono_mb_emit_ldloc (mb, 0);
1679 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1680 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1681 mono_mb_emit_icall (mb, conv_to_icall (conv));
1684 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1685 MonoClass *eklass = NULL;
1688 if (type->type == MONO_TYPE_SZARRAY) {
1689 eklass = type->data.klass;
1691 g_assert_not_reached ();
1694 if (eklass->valuetype)
1695 esize = mono_class_native_size (eklass, NULL);
1697 esize = sizeof (gpointer);
1699 mono_mb_emit_ldloc (mb, 0);
1700 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1701 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1703 if (eklass->blittable) {
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_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1708 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1709 mono_mb_emit_byte (mb, CEE_PREFIX1);
1710 mono_mb_emit_byte (mb, CEE_CPBLK);
1712 int array_var, src_var, dst_var, index_var;
1713 guint32 label2, label3;
1715 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1716 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1717 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1720 mono_mb_emit_ldloc (mb, 0);
1721 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1722 mono_mb_emit_stloc (mb, array_var);
1724 /* save the old src pointer */
1725 mono_mb_emit_ldloc (mb, 0);
1726 mono_mb_emit_stloc (mb, src_var);
1727 /* save the old dst pointer */
1728 mono_mb_emit_ldloc (mb, 1);
1729 mono_mb_emit_stloc (mb, dst_var);
1731 /* Emit marshalling loop */
1732 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1733 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1734 mono_mb_emit_stloc (mb, index_var);
1737 label2 = mono_mb_get_label (mb);
1738 mono_mb_emit_ldloc (mb, index_var);
1739 mono_mb_emit_ldloc (mb, array_var);
1740 mono_mb_emit_byte (mb, CEE_LDLEN);
1741 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1744 mono_mb_emit_ldloc (mb, array_var);
1745 mono_mb_emit_ldloc (mb, index_var);
1746 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1747 mono_mb_emit_stloc (mb, 0);
1749 /* dst is already set */
1751 /* Do the conversion */
1752 emit_struct_conv (mb, eklass, FALSE);
1755 mono_mb_emit_add_to_local (mb, index_var, 1);
1757 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1759 mono_mb_patch_branch (mb, label3);
1761 /* restore the old src pointer */
1762 mono_mb_emit_ldloc (mb, src_var);
1763 mono_mb_emit_stloc (mb, 0);
1764 /* restore the old dst pointer */
1765 mono_mb_emit_ldloc (mb, dst_var);
1766 mono_mb_emit_stloc (mb, 1);
1769 mono_mb_patch_branch (mb, pos);
1772 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1775 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1777 mono_mb_emit_ldloc (mb, 1);
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1780 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1781 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1782 mono_mb_patch_short_branch (mb, pos);
1785 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1786 int src_var, dst_var;
1788 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1789 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1791 mono_mb_emit_ldloc (mb, 0);
1792 mono_mb_emit_byte (mb, CEE_LDIND_I);
1793 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1795 /* save the old src pointer */
1796 mono_mb_emit_ldloc (mb, 0);
1797 mono_mb_emit_stloc (mb, src_var);
1798 /* save the old dst pointer */
1799 mono_mb_emit_ldloc (mb, 1);
1800 mono_mb_emit_stloc (mb, dst_var);
1802 /* src = pointer to object data */
1803 mono_mb_emit_ldloc (mb, 0);
1804 mono_mb_emit_byte (mb, CEE_LDIND_I);
1805 mono_mb_emit_icon (mb, sizeof (MonoObject));
1806 mono_mb_emit_byte (mb, CEE_ADD);
1807 mono_mb_emit_stloc (mb, 0);
1809 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1811 /* restore the old src pointer */
1812 mono_mb_emit_ldloc (mb, src_var);
1813 mono_mb_emit_stloc (mb, 0);
1814 /* restore the old dst pointer */
1815 mono_mb_emit_ldloc (mb, dst_var);
1816 mono_mb_emit_stloc (mb, 1);
1818 mono_mb_patch_branch (mb, pos);
1823 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1824 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1825 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1826 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1828 #endif /* DISABLE_COM */
1830 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1833 mono_mb_emit_ldloc (mb, 0);
1834 mono_mb_emit_byte (mb, CEE_LDIND_I);
1835 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1836 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1837 mono_mb_patch_branch (mb, pos);
1839 /* Pull the handle field from SafeHandle */
1840 mono_mb_emit_ldloc (mb, 1);
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_byte (mb, CEE_LDIND_I);
1843 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1844 mono_mb_emit_byte (mb, CEE_LDIND_I);
1845 mono_mb_emit_byte (mb, CEE_STIND_I);
1849 case MONO_MARSHAL_CONV_HANDLEREF: {
1850 mono_mb_emit_ldloc (mb, 1);
1851 mono_mb_emit_ldloc (mb, 0);
1852 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1853 mono_mb_emit_byte (mb, CEE_ADD);
1854 mono_mb_emit_byte (mb, CEE_LDIND_I);
1855 mono_mb_emit_byte (mb, CEE_STIND_I);
1860 g_error ("marshalling conversion %d not implemented", conv);
1866 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1867 MonoMarshalNative string_encoding)
1869 MonoMarshalType *info;
1873 emit_struct_conv(mb, klass->parent, to_object);
1875 info = mono_marshal_load_type_info (klass);
1877 if (info->native_size == 0)
1880 if (klass->blittable) {
1881 int msize = mono_class_value_size (klass, NULL);
1882 g_assert (msize == info->native_size);
1883 mono_mb_emit_ldloc (mb, 1);
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_icon (mb, msize);
1886 mono_mb_emit_byte (mb, CEE_PREFIX1);
1887 mono_mb_emit_byte (mb, CEE_CPBLK);
1889 mono_mb_emit_add_to_local (mb, 0, msize);
1890 mono_mb_emit_add_to_local (mb, 1, msize);
1894 if (klass != mono_class_try_get_safehandle_class ()) {
1895 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1896 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1897 mono_type_full_name (&klass->byval_arg));
1898 mono_mb_emit_exception_marshal_directive (mb, msg);
1903 for (i = 0; i < info->num_fields; i++) {
1904 MonoMarshalNative ntype;
1905 MonoMarshalConv conv;
1906 MonoType *ftype = info->fields [i].field->type;
1909 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1911 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1914 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1917 msize = klass->instance_size - info->fields [i].field->offset;
1918 usize = info->native_size - info->fields [i].offset;
1920 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1921 usize = info->fields [i + 1].offset - info->fields [i].offset;
1924 if (klass != mono_class_try_get_safehandle_class ()){
1926 * FIXME: Should really check for usize==0 and msize>0, but we apply
1927 * the layout to the managed structure as well.
1930 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1931 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1932 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1933 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1934 "reference field at the same offset as another field.",
1935 mono_type_full_name (&klass->byval_arg));
1940 case MONO_MARSHAL_CONV_NONE: {
1943 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1944 ftype->type == MONO_TYPE_U) {
1945 mono_mb_emit_ldloc (mb, 1);
1946 mono_mb_emit_ldloc (mb, 0);
1947 mono_mb_emit_byte (mb, CEE_LDIND_I);
1948 mono_mb_emit_byte (mb, CEE_STIND_I);
1959 case MONO_TYPE_BOOLEAN:
1962 case MONO_TYPE_CHAR:
1968 mono_mb_emit_ldloc (mb, 1);
1969 mono_mb_emit_ldloc (mb, 0);
1970 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1972 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1973 mono_mb_emit_byte (mb, CEE_STIND_I2);
1975 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1976 mono_mb_emit_byte (mb, CEE_STIND_I1);
1979 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1980 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1983 case MONO_TYPE_VALUETYPE: {
1984 int src_var, dst_var;
1986 if (ftype->data.klass->enumtype) {
1987 ftype = mono_class_enum_basetype (ftype->data.klass);
1991 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1992 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1994 /* save the old src pointer */
1995 mono_mb_emit_ldloc (mb, 0);
1996 mono_mb_emit_stloc (mb, src_var);
1997 /* save the old dst pointer */
1998 mono_mb_emit_ldloc (mb, 1);
1999 mono_mb_emit_stloc (mb, dst_var);
2001 emit_struct_conv (mb, ftype->data.klass, to_object);
2003 /* restore the old src pointer */
2004 mono_mb_emit_ldloc (mb, src_var);
2005 mono_mb_emit_stloc (mb, 0);
2006 /* restore the old dst pointer */
2007 mono_mb_emit_ldloc (mb, dst_var);
2008 mono_mb_emit_stloc (mb, 1);
2011 case MONO_TYPE_OBJECT: {
2014 static MonoMethod *variant_clear = NULL;
2015 static MonoMethod *get_object_for_native_variant = NULL;
2018 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2019 if (!get_object_for_native_variant)
2020 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2021 mono_mb_emit_ldloc (mb, 1);
2022 mono_mb_emit_ldloc (mb, 0);
2023 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2024 mono_mb_emit_byte (mb, CEE_STIND_REF);
2026 mono_mb_emit_ldloc (mb, 0);
2027 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2030 static MonoMethod *get_native_variant_for_object = NULL;
2032 if (!get_native_variant_for_object)
2033 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2035 mono_mb_emit_ldloc (mb, 0);
2036 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2037 mono_mb_emit_ldloc (mb, 1);
2038 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2041 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2042 mono_mb_emit_exception_marshal_directive (mb, msg);
2048 g_warning ("marshaling type %02x not implemented", ftype->type);
2049 g_assert_not_reached ();
2054 int src_var, dst_var;
2056 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2057 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2059 /* save the old src pointer */
2060 mono_mb_emit_ldloc (mb, 0);
2061 mono_mb_emit_stloc (mb, src_var);
2062 /* save the old dst pointer */
2063 mono_mb_emit_ldloc (mb, 1);
2064 mono_mb_emit_stloc (mb, dst_var);
2067 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2069 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2071 /* restore the old src pointer */
2072 mono_mb_emit_ldloc (mb, src_var);
2073 mono_mb_emit_stloc (mb, 0);
2074 /* restore the old dst pointer */
2075 mono_mb_emit_ldloc (mb, dst_var);
2076 mono_mb_emit_stloc (mb, 1);
2081 mono_mb_emit_add_to_local (mb, 0, usize);
2082 mono_mb_emit_add_to_local (mb, 1, msize);
2084 mono_mb_emit_add_to_local (mb, 0, msize);
2085 mono_mb_emit_add_to_local (mb, 1, usize);
2091 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2093 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2097 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2099 /* Call DestroyStructure */
2100 /* FIXME: Only do this if needed */
2101 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2102 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2103 mono_mb_emit_ldloc (mb, struct_var);
2104 mono_mb_emit_icall (mb, mono_struct_delete_old);
2108 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2110 int pos_noabort, pos_noex;
2112 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2113 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2114 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2115 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2117 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2118 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2120 mono_mb_emit_icall (mb, checkpoint_func);
2121 /* Throw the exception returned by the checkpoint function, if any */
2122 mono_mb_emit_byte (mb, CEE_DUP);
2123 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2124 mono_mb_emit_byte (mb, CEE_THROW);
2125 mono_mb_patch_branch (mb, pos_noex);
2126 mono_mb_emit_byte (mb, CEE_POP);
2128 mono_mb_patch_branch (mb, pos_noabort);
2132 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2134 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2137 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2141 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2143 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2147 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2149 emit_thread_interrupt_checkpoint (mb);
2153 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2155 emit_thread_force_interrupt_checkpoint (mb);
2158 #endif /* DISABLE_JIT */
2160 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2161 static MonoAsyncResult *
2162 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2165 MonoMulticastDelegate *mcast_delegate;
2169 g_assert (delegate);
2170 mcast_delegate = (MonoMulticastDelegate *) delegate;
2171 if (mcast_delegate->delegates != NULL) {
2172 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2176 #ifndef DISABLE_REMOTING
2177 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2178 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2179 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2180 /* If the target is a proxy, make a direct call. Is proxy's work
2181 // to make the call asynchronous.
2183 MonoMethodMessage *msg;
2184 MonoDelegate *async_callback;
2186 MonoAsyncResult *ares;
2188 MonoArray *out_args;
2189 method = delegate->method;
2191 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2192 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2193 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2194 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2195 MONO_OBJECT_SETREF (msg, async_result, ares);
2196 msg->call_type = CallType_BeginInvoke;
2199 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2200 if (!mono_error_ok (&error)) {
2201 mono_error_set_pending_exception (&error);
2205 mono_set_pending_exception ((MonoException *) exc);
2211 klass = delegate->object.vtable->klass;
2213 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2215 method = mono_get_delegate_invoke (klass);
2218 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2219 mono_error_set_pending_exception (&error);
2226 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2228 int i, params_var, tmp_var;
2230 /* allocate local (pointer) *params[] */
2231 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2232 /* allocate local (pointer) tmp */
2233 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2235 /* alloate space on stack to store an array of pointers to the arguments */
2236 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2237 mono_mb_emit_byte (mb, CEE_PREFIX1);
2238 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2239 mono_mb_emit_stloc (mb, params_var);
2242 mono_mb_emit_ldloc (mb, params_var);
2243 mono_mb_emit_stloc (mb, tmp_var);
2245 if (save_this && sig->hasthis) {
2246 mono_mb_emit_ldloc (mb, tmp_var);
2247 mono_mb_emit_ldarg_addr (mb, 0);
2248 mono_mb_emit_byte (mb, CEE_STIND_I);
2249 /* tmp = tmp + sizeof (gpointer) */
2250 if (sig->param_count)
2251 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2255 for (i = 0; i < sig->param_count; i++) {
2256 mono_mb_emit_ldloc (mb, tmp_var);
2257 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2258 mono_mb_emit_byte (mb, CEE_STIND_I);
2259 /* tmp = tmp + sizeof (gpointer) */
2260 if (i < (sig->param_count - 1))
2261 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2267 #endif /* DISABLE_JIT */
2270 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2274 GString *res = g_string_new ("");
2277 g_string_append (res, prefix);
2278 g_string_append_c (res, '_');
2281 mono_type_get_desc (res, sig->ret, FALSE);
2284 g_string_append (res, "__this__");
2286 for (i = 0; i < sig->param_count; ++i) {
2287 g_string_append_c (res, '_');
2288 mono_type_get_desc (res, sig->params [i], FALSE);
2291 g_string_free (res, FALSE);
2296 * mono_marshal_get_string_encoding:
2298 * Return the string encoding which should be used for a given parameter.
2300 static MonoMarshalNative
2301 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2303 /* First try the parameter marshal info */
2305 if (spec->native == MONO_NATIVE_LPARRAY) {
2306 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2307 return spec->data.array_data.elem_type;
2310 return spec->native;
2314 return MONO_NATIVE_LPSTR;
2316 /* Then try the method level marshal info */
2317 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2318 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2319 return MONO_NATIVE_LPSTR;
2320 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2321 return MONO_NATIVE_LPWSTR;
2322 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2324 return MONO_NATIVE_LPWSTR;
2326 return MONO_NATIVE_LPSTR;
2329 return MONO_NATIVE_LPSTR;
2333 static MonoMarshalConv
2334 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2336 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2339 case MONO_NATIVE_LPWSTR:
2340 return MONO_MARSHAL_CONV_STR_LPWSTR;
2341 case MONO_NATIVE_LPSTR:
2342 case MONO_NATIVE_VBBYREFSTR:
2343 return MONO_MARSHAL_CONV_STR_LPSTR;
2344 case MONO_NATIVE_LPTSTR:
2345 return MONO_MARSHAL_CONV_STR_LPTSTR;
2346 case MONO_NATIVE_BSTR:
2347 return MONO_MARSHAL_CONV_STR_BSTR;
2349 return (MonoMarshalConv)-1;
2353 static MonoMarshalConv
2354 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2356 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2359 case MONO_NATIVE_LPWSTR:
2360 return MONO_MARSHAL_CONV_SB_LPWSTR;
2362 case MONO_NATIVE_LPSTR:
2363 return MONO_MARSHAL_CONV_SB_LPSTR;
2365 case MONO_NATIVE_LPTSTR:
2366 return MONO_MARSHAL_CONV_SB_LPTSTR;
2369 return (MonoMarshalConv)-1;
2373 static MonoMarshalConv
2374 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2376 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2381 case MONO_NATIVE_LPWSTR:
2383 return MONO_MARSHAL_CONV_LPWSTR_STR;
2384 case MONO_NATIVE_LPSTR:
2385 case MONO_NATIVE_VBBYREFSTR:
2386 return MONO_MARSHAL_CONV_LPSTR_STR;
2387 case MONO_NATIVE_LPTSTR:
2388 return MONO_MARSHAL_CONV_LPTSTR_STR;
2389 case MONO_NATIVE_BSTR:
2390 return MONO_MARSHAL_CONV_BSTR_STR;
2392 return (MonoMarshalConv)-1;
2396 static MonoMarshalConv
2397 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2399 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2404 case MONO_NATIVE_LPWSTR:
2406 * mono_string_builder_to_utf16 does not allocate a
2407 * new buffer, so no need to free it.
2410 return MONO_MARSHAL_CONV_LPWSTR_SB;
2411 case MONO_NATIVE_LPSTR:
2412 return MONO_MARSHAL_CONV_LPSTR_SB;
2414 case MONO_NATIVE_LPTSTR:
2415 return MONO_MARSHAL_CONV_LPTSTR_SB;
2418 return (MonoMarshalConv)-1;
2423 * Return whenever a field of a native structure or an array member needs to
2427 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2429 MonoMarshalNative encoding;
2432 case MONO_TYPE_VALUETYPE:
2433 /* FIXME: Optimize this */
2435 case MONO_TYPE_OBJECT:
2436 case MONO_TYPE_CLASS:
2437 if (t->data.klass == mono_defaults.stringbuilder_class) {
2439 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2443 case MONO_TYPE_STRING:
2444 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2445 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2452 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2455 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2458 mono_marshal_lock ();
2461 g_hash_table_new (hash_func, equal_func);
2462 mono_memory_barrier ();
2465 mono_marshal_unlock ();
2471 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2473 return get_cache (var, hash_func, equal_func);
2477 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2481 mono_marshal_lock ();
2482 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2483 mono_marshal_unlock ();
2490 * Create a MonoMethod from MB, set INFO as wrapper info.
2493 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2494 int max_stack, WrapperInfo *info)
2498 res = mono_mb_create_method (mb, sig, max_stack);
2500 mono_marshal_set_wrapper_info (res, info);
2504 /* Create the method from the builder and place it in the cache */
2506 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2507 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2508 int max_stack, WrapperInfo *info, gboolean *out_found)
2515 mono_marshal_lock ();
2516 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2517 mono_marshal_unlock ();
2520 newm = mono_mb_create_method (mb, sig, max_stack);
2521 mono_marshal_lock ();
2522 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2525 g_hash_table_insert (cache, key, res);
2526 mono_marshal_set_wrapper_info (res, info);
2527 mono_marshal_unlock ();
2531 mono_marshal_unlock ();
2532 mono_free_method (newm);
2540 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2541 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2544 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2548 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2551 int wrapper_type = wrapper->wrapper_type;
2554 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2557 info = mono_marshal_get_wrapper_info (wrapper);
2559 switch (wrapper_type) {
2560 case MONO_WRAPPER_REMOTING_INVOKE:
2561 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2562 case MONO_WRAPPER_XDOMAIN_INVOKE:
2563 m = info->d.remoting.method;
2564 if (wrapper->is_inflated) {
2568 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2569 * contains an uninflated method.
2571 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2572 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2576 case MONO_WRAPPER_SYNCHRONIZED:
2577 m = info->d.synchronized.method;
2578 if (wrapper->is_inflated) {
2581 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2582 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2586 case MONO_WRAPPER_UNBOX:
2587 return info->d.unbox.method;
2588 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2589 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2590 return info->d.managed_to_native.method;
2593 case MONO_WRAPPER_RUNTIME_INVOKE:
2594 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2595 return info->d.runtime_invoke.method;
2604 * mono_marshal_get_wrapper_info:
2606 * Retrieve the WrapperInfo structure associated with WRAPPER.
2609 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2611 g_assert (wrapper->wrapper_type);
2613 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2617 * mono_marshal_set_wrapper_info:
2619 * Set the WrapperInfo structure associated with the wrapper
2620 * method METHOD to INFO.
2623 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2627 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2630 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2635 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2639 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2640 info->subtype = subtype;
2645 * get_wrapper_target_class:
2647 * Return the class where a wrapper method should be placed.
2650 get_wrapper_target_class (MonoImage *image)
2657 * - can't put all wrappers into an mscorlib class, because they reference
2658 * metadata (signature) so they should be put into the same image as the
2659 * method they wrap, so they are unloaded together.
2660 * - putting them into a class with a type initalizer could cause the
2661 * initializer to be executed which can be a problem if the wrappers are
2663 * - putting them into an inflated class can cause problems if the the
2664 * class is deleted because it references an image which is unloaded.
2665 * To avoid these problems, we put the wrappers into the <Module> class of
2668 if (image_is_dynamic (image)) {
2669 klass = ((MonoDynamicImage*)image)->wrappers_type;
2671 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2672 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2680 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2681 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2685 * check_generic_wrapper_cache:
2687 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2688 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2689 * generic method definition.
2692 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2695 MonoMethod *inst, *def;
2696 MonoGenericContext *ctx;
2698 g_assert (orig_method->is_inflated);
2699 ctx = mono_method_get_context (orig_method);
2702 * Look for the instance
2704 res = mono_marshal_find_in_cache (cache, key);
2709 * Look for the definition
2711 def = mono_marshal_find_in_cache (cache, def_key);
2714 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2715 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2717 mono_memory_barrier ();
2718 mono_marshal_lock ();
2719 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2721 g_hash_table_insert (cache, key, inst);
2724 mono_marshal_unlock ();
2731 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2734 MonoMethod *inst, *res;
2737 * We use the same cache for the generic definition and the instances.
2739 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2740 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2741 mono_memory_barrier ();
2742 mono_marshal_lock ();
2743 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2745 g_hash_table_insert (cache, key, inst);
2748 mono_marshal_unlock ();
2753 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2757 MonoMethod *inst, *def;
2760 * Look for the instance
2762 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2767 * Look for the definition
2769 def = mono_marshal_find_in_cache (cache, def_method->klass);
2771 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2772 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2775 mono_memory_barrier ();
2776 mono_marshal_lock ();
2777 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2779 g_hash_table_insert (cache, orig_method->klass, inst);
2782 mono_marshal_unlock ();
2789 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2792 MonoMethod *inst, *res;
2795 * We use the same cache for the generic definition and the instances.
2797 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2798 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2800 mono_memory_barrier ();
2801 mono_marshal_lock ();
2802 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2804 g_hash_table_insert (cache, orig_method->klass, inst);
2807 mono_marshal_unlock ();
2812 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2814 MonoMethodSignature *sig;
2815 MonoMethodBuilder *mb;
2820 MonoGenericContext *ctx = NULL;
2821 MonoMethod *orig_method = NULL;
2823 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2824 !strcmp (method->name, "BeginInvoke"));
2827 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2829 if (method->is_inflated) {
2830 orig_method = method;
2831 ctx = &((MonoMethodInflated*)method)->context;
2832 method = ((MonoMethodInflated*)method)->declaring;
2835 sig = mono_signature_no_pinvoke (method);
2841 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2842 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2846 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2847 (GHashFunc)mono_signature_hash,
2848 (GCompareFunc)mono_metadata_signature_equal);
2849 if ((res = mono_marshal_find_in_cache (cache, sig)))
2853 g_assert (sig->hasthis);
2855 name = mono_signature_to_name (sig, "begin_invoke");
2857 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2859 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2863 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2865 mono_mb_emit_ldarg (mb, 0);
2866 mono_mb_emit_ldloc (mb, params_var);
2867 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2868 mono_mb_emit_byte (mb, CEE_RET);
2873 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2874 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2876 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2883 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2885 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2888 MonoDomain *domain = mono_domain_get ();
2889 MonoAsyncResult *ares;
2890 MonoMethod *method = NULL;
2891 MonoMethodSignature *sig;
2892 MonoMethodMessage *msg;
2893 MonoObject *res, *exc;
2894 MonoArray *out_args;
2897 g_assert (delegate);
2899 if (!delegate->method_info) {
2900 g_assert (delegate->method);
2901 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2902 if (!mono_error_ok (&error)) {
2903 mono_error_set_pending_exception (&error);
2906 MONO_OBJECT_SETREF (delegate, method_info, rm);
2909 if (!delegate->method_info || !delegate->method_info->method)
2910 g_assert_not_reached ();
2912 klass = delegate->object.vtable->klass;
2914 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2915 g_assert (method != NULL);
2917 sig = mono_signature_no_pinvoke (method);
2919 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2921 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2923 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."));
2927 if (ares->async_delegate != (MonoObject*)delegate) {
2928 mono_set_pending_exception (mono_get_exception_invalid_operation (
2929 "The IAsyncResult object provided does not match this delegate."));
2933 #ifndef DISABLE_REMOTING
2934 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2935 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2936 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2937 if (!mono_error_ok (&error)) {
2938 mono_error_set_pending_exception (&error);
2941 mono_message_init (domain, msg, delegate->method_info, NULL);
2942 msg->call_type = CallType_EndInvoke;
2943 MONO_OBJECT_SETREF (msg, async_result, ares);
2944 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2945 if (!mono_error_ok (&error)) {
2946 mono_error_set_pending_exception (&error);
2952 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2956 if (((MonoException*)exc)->stack_trace) {
2957 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2959 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2961 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2964 mono_set_pending_exception ((MonoException*)exc);
2967 mono_method_return_message_restore (method, params, out_args);
2974 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2976 MonoType *t = mono_type_get_underlying_type (return_type);
2978 if (return_type->byref)
2979 return_type = &mono_defaults.int_class->byval_arg;
2982 case MONO_TYPE_VOID:
2983 g_assert_not_reached ();
2986 case MONO_TYPE_STRING:
2987 case MONO_TYPE_CLASS:
2988 case MONO_TYPE_OBJECT:
2989 case MONO_TYPE_ARRAY:
2990 case MONO_TYPE_SZARRAY:
2994 case MONO_TYPE_BOOLEAN:
2997 case MONO_TYPE_CHAR:
3007 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3008 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3010 case MONO_TYPE_GENERICINST:
3011 if (!mono_type_generic_inst_is_valuetype (t))
3014 case MONO_TYPE_VALUETYPE: {
3015 MonoClass *klass = mono_class_from_mono_type (return_type);
3016 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3017 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3021 case MONO_TYPE_MVAR: {
3022 MonoClass *klass = mono_class_from_mono_type (return_type);
3023 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3027 g_warning ("type 0x%x not handled", return_type->type);
3028 g_assert_not_reached ();
3031 mono_mb_emit_byte (mb, CEE_RET);
3034 #endif /* DISABLE_JIT */
3037 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3039 MonoMethodSignature *sig;
3040 MonoMethodBuilder *mb;
3045 MonoGenericContext *ctx = NULL;
3046 MonoMethod *orig_method = NULL;
3048 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3049 !strcmp (method->name, "EndInvoke"));
3052 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3054 if (method->is_inflated) {
3055 orig_method = method;
3056 ctx = &((MonoMethodInflated*)method)->context;
3057 method = ((MonoMethodInflated*)method)->declaring;
3060 sig = mono_signature_no_pinvoke (method);
3066 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3067 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3071 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3072 (GHashFunc)mono_signature_hash,
3073 (GCompareFunc)mono_metadata_signature_equal);
3074 if ((res = mono_marshal_find_in_cache (cache, sig)))
3078 g_assert (sig->hasthis);
3080 name = mono_signature_to_name (sig, "end_invoke");
3082 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3084 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3088 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3090 mono_mb_emit_ldarg (mb, 0);
3091 mono_mb_emit_ldloc (mb, params_var);
3092 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3094 if (sig->ret->type == MONO_TYPE_VOID) {
3095 mono_mb_emit_byte (mb, CEE_POP);
3096 mono_mb_emit_byte (mb, CEE_RET);
3098 mono_mb_emit_restore_result (mb, sig->ret);
3103 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3104 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3106 res = mono_mb_create_and_cache (cache, sig,
3107 mb, sig, sig->param_count + 16);
3116 MonoMethodSignature *sig;
3118 } SignaturePointerPair;
3121 signature_pointer_pair_hash (gconstpointer data)
3123 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3125 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3129 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3131 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3132 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3136 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3138 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3140 return pair->pointer == user_data;
3144 free_signature_pointer_pair (SignaturePointerPair *pair)
3150 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3152 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3154 MonoMethodBuilder *mb;
3157 gpointer cache_key = NULL;
3158 SignaturePointerPair key;
3159 SignaturePointerPair *new_key;
3160 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3161 int pos0, pos1, pos2;
3163 MonoClass *target_class = NULL;
3164 gboolean closed_over_null = FALSE;
3165 MonoGenericContext *ctx = NULL;
3166 MonoGenericContainer *container = NULL;
3167 MonoMethod *orig_method = NULL;
3169 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3173 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3174 !strcmp (method->name, "Invoke"));
3176 invoke_sig = sig = mono_signature_no_pinvoke (method);
3179 * If the delegate target is null, and the target method is not static, a virtual
3180 * call is made to that method with the first delegate argument as this. This is
3181 * a non-documented .NET feature.
3184 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3185 if (target_method->is_inflated) {
3187 MonoType *target_type;
3189 g_assert (method->signature->hasthis);
3190 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3191 mono_method_get_context (method), &error);
3192 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3193 target_class = mono_class_from_mono_type (target_type);
3195 target_class = target_method->klass;
3198 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3201 if (static_method_with_first_arg_bound) {
3202 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3203 g_assert (!callvirt);
3204 invoke_sig = mono_method_signature (target_method);
3208 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3210 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3211 orig_method = method;
3212 ctx = &((MonoMethodInflated*)method)->context;
3213 method = ((MonoMethodInflated*)method)->declaring;
3215 container = mono_method_get_generic_container (method);
3217 container = method->klass->generic_container;
3218 g_assert (container);
3220 invoke_sig = sig = mono_signature_no_pinvoke (method);
3227 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3228 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3231 cache_key = method->klass;
3232 } else if (static_method_with_first_arg_bound) {
3233 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3234 (GHashFunc)mono_signature_hash,
3235 (GCompareFunc)mono_metadata_signature_equal);
3237 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3239 res = mono_marshal_find_in_cache (cache, invoke_sig);
3242 cache_key = invoke_sig;
3243 } else if (callvirt) {
3244 GHashTable **cache_ptr;
3246 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3248 /* We need to cache the signature+method pair */
3249 mono_marshal_lock ();
3251 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3253 key.sig = invoke_sig;
3254 key.pointer = target_method;
3255 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3256 mono_marshal_unlock ();
3260 // Inflated methods should not be in this cache because it's not stored on the imageset.
3261 g_assert (!method->is_inflated);
3262 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3263 (GHashFunc)mono_signature_hash,
3264 (GCompareFunc)mono_metadata_signature_equal);
3265 res = mono_marshal_find_in_cache (cache, sig);
3271 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3272 static_sig->hasthis = 0;
3273 if (!static_method_with_first_arg_bound)
3274 invoke_sig = static_sig;
3276 if (static_method_with_first_arg_bound)
3277 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3278 else if (closed_over_null)
3279 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3281 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3283 name = mono_signature_to_name (invoke_sig, "invoke");
3285 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3287 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3291 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3293 /* allocate local 0 (object) */
3294 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3295 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3296 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3297 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3298 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3301 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3303 g_assert (sig->hasthis);
3306 * {type: sig->ret} res;
3307 * if (delegates == null) {
3308 * return this.<target> ( args .. );
3310 * int i = 0, len = this.delegates.Length;
3312 * res = this.delegates [i].Invoke ( args .. );
3313 * } while (++i < len);
3318 /* this wrapper can be used in unmanaged-managed transitions */
3319 emit_thread_interrupt_checkpoint (mb);
3321 /* delegates = this.delegates */
3322 mono_mb_emit_ldarg (mb, 0);
3323 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3324 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3325 mono_mb_emit_stloc (mb, local_delegates);
3328 /* if (delegates == null) */
3329 mono_mb_emit_ldloc (mb, local_delegates);
3330 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3332 /* return target.<target_method|method_ptr> ( args .. ); */
3334 /* target = d.target; */
3335 mono_mb_emit_ldarg (mb, 0);
3336 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3337 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3338 mono_mb_emit_stloc (mb, local_target);
3340 /*static methods with bound first arg can have null target and still be bound*/
3341 if (!static_method_with_first_arg_bound) {
3342 /* if target != null */
3343 mono_mb_emit_ldloc (mb, local_target);
3344 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3346 /* then call this->method_ptr nonstatic */
3349 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3351 mono_mb_emit_ldloc (mb, local_target);
3352 for (i = 0; i < sig->param_count; ++i)
3353 mono_mb_emit_ldarg (mb, i + 1);
3354 mono_mb_emit_ldarg (mb, 0);
3355 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3356 mono_mb_emit_byte (mb, CEE_LDIND_I);
3357 mono_mb_emit_ldarg (mb, 0);
3358 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3359 mono_mb_emit_byte (mb, CEE_LDIND_I);
3360 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3361 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3362 mono_mb_emit_byte (mb, CEE_RET);
3365 /* else [target == null] call this->method_ptr static */
3366 mono_mb_patch_branch (mb, pos0);
3370 if (!closed_over_null) {
3371 if (target_class->valuetype) {
3372 mono_mb_emit_ldarg (mb, 1);
3373 for (i = 1; i < sig->param_count; ++i)
3374 mono_mb_emit_ldarg (mb, i + 1);
3375 mono_mb_emit_op (mb, CEE_CALL, target_method);
3377 mono_mb_emit_ldarg (mb, 1);
3378 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3379 for (i = 1; i < sig->param_count; ++i)
3380 mono_mb_emit_ldarg (mb, i + 1);
3381 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3384 mono_mb_emit_byte (mb, CEE_LDNULL);
3385 for (i = 0; i < sig->param_count; ++i)
3386 mono_mb_emit_ldarg (mb, i + 1);
3387 mono_mb_emit_op (mb, CEE_CALL, target_method);
3390 if (static_method_with_first_arg_bound) {
3391 mono_mb_emit_ldloc (mb, local_target);
3392 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3393 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3395 for (i = 0; i < sig->param_count; ++i)
3396 mono_mb_emit_ldarg (mb, i + 1);
3397 mono_mb_emit_ldarg (mb, 0);
3398 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3399 mono_mb_emit_byte (mb, CEE_LDIND_I);
3400 mono_mb_emit_ldarg (mb, 0);
3401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3402 mono_mb_emit_byte (mb, CEE_LDIND_I);
3403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3404 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3407 mono_mb_emit_byte (mb, CEE_RET);
3409 /* else [delegates != null] */
3410 mono_mb_patch_branch (mb, pos2);
3412 /* len = delegates.Length; */
3413 mono_mb_emit_ldloc (mb, local_delegates);
3414 mono_mb_emit_byte (mb, CEE_LDLEN);
3415 mono_mb_emit_byte (mb, CEE_CONV_I4);
3416 mono_mb_emit_stloc (mb, local_len);
3419 mono_mb_emit_icon (mb, 0);
3420 mono_mb_emit_stloc (mb, local_i);
3422 pos1 = mono_mb_get_label (mb);
3424 /* d = delegates [i]; */
3425 mono_mb_emit_ldloc (mb, local_delegates);
3426 mono_mb_emit_ldloc (mb, local_i);
3427 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3428 mono_mb_emit_stloc (mb, local_d);
3430 /* res = d.Invoke ( args .. ); */
3431 mono_mb_emit_ldloc (mb, local_d);
3432 for (i = 0; i < sig->param_count; i++)
3433 mono_mb_emit_ldarg (mb, i + 1);
3435 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3438 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3439 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3442 mono_mb_emit_stloc (mb, local_res);
3445 mono_mb_emit_add_to_local (mb, local_i, 1);
3448 mono_mb_emit_ldloc (mb, local_i);
3449 mono_mb_emit_ldloc (mb, local_len);
3450 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3454 mono_mb_emit_ldloc (mb, local_res);
3455 mono_mb_emit_byte (mb, CEE_RET);
3457 mb->skip_visibility = 1;
3458 #endif /* DISABLE_JIT */
3460 info = mono_wrapper_info_create (mb, subtype);
3465 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3466 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3467 } else if (callvirt) {
3468 new_key = g_new0 (SignaturePointerPair, 1);
3471 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3475 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3479 /* mono_method_print_code (res); */
3485 * the returned method invokes all methods in a multicast delegate.
3488 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3490 gboolean callvirt = FALSE;
3491 gboolean static_method_with_first_arg_bound = FALSE;
3492 MonoMethod *target_method = NULL;
3493 MonoMethodSignature *sig;
3495 sig = mono_signature_no_pinvoke (method);
3497 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3499 target_method = del->method;
3502 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3503 static_method_with_first_arg_bound = TRUE;
3504 target_method = del->method;
3507 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3511 MonoMethodSignature *ctor_sig;
3512 MonoMethodSignature *sig;
3515 /* protected by the marshal lock, contains CtorSigPair pointers */
3516 static GSList *strsig_list = NULL;
3518 static MonoMethodSignature *
3519 lookup_string_ctor_signature (MonoMethodSignature *sig)
3521 MonoMethodSignature *callsig;
3525 mono_marshal_lock ();
3527 for (item = strsig_list; item; item = item->next) {
3528 cs = (CtorSigPair *)item->data;
3529 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3530 * because it is lock-free.
3532 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3537 mono_marshal_unlock ();
3541 static MonoMethodSignature *
3542 add_string_ctor_signature (MonoMethod *method)
3544 MonoMethodSignature *callsig;
3547 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3548 callsig->ret = &mono_defaults.string_class->byval_arg;
3549 cs = g_new (CtorSigPair, 1);
3551 cs->ctor_sig = mono_method_signature (method);
3553 mono_marshal_lock ();
3554 strsig_list = g_slist_prepend (strsig_list, cs);
3555 mono_marshal_unlock ();
3560 * mono_marshal_get_string_ctor_signature:
3562 * Return the modified signature used by string ctors (they return the newly created
3565 MonoMethodSignature*
3566 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3568 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3570 sig = add_string_ctor_signature (method);
3576 get_runtime_invoke_type (MonoType *t, gboolean ret)
3579 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3581 /* Can't share this with 'I' as that needs another indirection */
3582 return &mono_defaults.int_class->this_arg;
3585 if (MONO_TYPE_IS_REFERENCE (t))
3586 return &mono_defaults.object_class->byval_arg;
3589 /* The result needs to be boxed */
3594 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3597 return &mono_defaults.sbyte_class->byval_arg;
3599 return &mono_defaults.int16_class->byval_arg;
3601 return &mono_defaults.int32_class->byval_arg;
3604 return &mono_defaults.int64_class->byval_arg;
3605 case MONO_TYPE_BOOLEAN:
3606 return &mono_defaults.byte_class->byval_arg;
3607 case MONO_TYPE_CHAR:
3608 return &mono_defaults.uint16_class->byval_arg;
3610 return &mono_defaults.int_class->byval_arg;
3611 case MONO_TYPE_VALUETYPE:
3612 if (t->data.klass->enumtype) {
3613 t = mono_class_enum_basetype (t->data.klass);
3623 * mono_marshal_get_runtime_invoke_sig:
3625 * Return a common signature used for sharing runtime invoke wrappers.
3627 static MonoMethodSignature*
3628 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3630 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3633 res->generic_param_count = 0;
3634 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3635 for (i = 0; i < res->param_count; ++i)
3636 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3642 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3644 /* Can't share wrappers which return a vtype since it needs to be boxed */
3645 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))
3648 return mono_metadata_signature_equal (sig1, sig2);
3656 * Emit the call to the wrapper method from a runtime invoke wrapper.
3659 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3660 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3662 gboolean virtual_, gboolean need_direct_wrapper)
3664 static MonoString *string_dummy = NULL;
3666 int *tmp_nullable_locals;
3667 gboolean void_ret = FALSE;
3668 gboolean string_ctor = method && method->string_ctor;
3670 /* to make it work with our special string constructors */
3671 if (!string_dummy) {
3672 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3673 string_dummy = mono_string_new_wrapper ("dummy");
3677 g_assert (sig->hasthis);
3678 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3683 if (mono_gc_is_moving ()) {
3684 mono_mb_emit_ptr (mb, &string_dummy);
3685 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3687 mono_mb_emit_ptr (mb, string_dummy);
3690 mono_mb_emit_ldarg (mb, 0);
3694 tmp_nullable_locals = g_new0 (int, sig->param_count);
3696 for (i = 0; i < sig->param_count; i++) {
3697 MonoType *t = sig->params [i];
3700 mono_mb_emit_ldarg (mb, 1);
3702 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3703 mono_mb_emit_byte (mb, CEE_ADD);
3707 mono_mb_emit_byte (mb, CEE_LDIND_I);
3708 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3709 * So to make this work we unbox it to a local variablee and push a reference to that.
3711 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3712 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3714 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3715 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3716 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3721 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3722 type = sig->params [i]->type;
3726 case MONO_TYPE_BOOLEAN:
3730 case MONO_TYPE_CHAR:
3739 mono_mb_emit_byte (mb, CEE_LDIND_I);
3740 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3742 case MONO_TYPE_STRING:
3743 case MONO_TYPE_CLASS:
3744 case MONO_TYPE_ARRAY:
3746 case MONO_TYPE_SZARRAY:
3747 case MONO_TYPE_OBJECT:
3748 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3750 case MONO_TYPE_GENERICINST:
3751 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3752 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3757 case MONO_TYPE_VALUETYPE:
3758 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3759 type = mono_class_enum_basetype (t->data.klass)->type;
3762 mono_mb_emit_byte (mb, CEE_LDIND_I);
3763 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3764 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3765 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3766 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3768 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3772 g_assert_not_reached ();
3777 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3778 } else if (need_direct_wrapper) {
3779 mono_mb_emit_op (mb, CEE_CALL, method);
3781 mono_mb_emit_ldarg (mb, 3);
3782 mono_mb_emit_calli (mb, callsig);
3785 if (sig->ret->byref) {
3787 g_assert_not_reached ();
3790 switch (sig->ret->type) {
3791 case MONO_TYPE_VOID:
3795 case MONO_TYPE_BOOLEAN:
3796 case MONO_TYPE_CHAR:
3809 case MONO_TYPE_VALUETYPE:
3810 case MONO_TYPE_TYPEDBYREF:
3811 case MONO_TYPE_GENERICINST:
3812 /* box value types */
3813 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3815 case MONO_TYPE_STRING:
3816 case MONO_TYPE_CLASS:
3817 case MONO_TYPE_ARRAY:
3818 case MONO_TYPE_SZARRAY:
3819 case MONO_TYPE_OBJECT:
3823 /* The result is an IntPtr */
3824 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3827 g_assert_not_reached ();
3831 mono_mb_emit_stloc (mb, loc_res);
3833 /* Convert back nullable-byref arguments */
3834 for (i = 0; i < sig->param_count; i++) {
3835 MonoType *t = sig->params [i];
3838 * Box the result and put it back into the array, the caller will have
3839 * to obtain it from there.
3841 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3842 mono_mb_emit_ldarg (mb, 1);
3843 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3844 mono_mb_emit_byte (mb, CEE_ADD);
3846 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3847 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3849 mono_mb_emit_byte (mb, CEE_STIND_REF);
3853 g_free (tmp_nullable_locals);
3857 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3858 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3859 gboolean virtual_, gboolean need_direct_wrapper)
3862 MonoExceptionClause *clause;
3863 int loc_res, loc_exc;
3865 /* The wrapper looks like this:
3871 * } catch (Exception e) {
3879 /* allocate local 0 (object) tmp */
3880 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3881 /* allocate local 1 (object) exc */
3882 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3884 /* *exc is assumed to be initialized to NULL by the caller */
3886 mono_mb_emit_byte (mb, CEE_LDARG_2);
3887 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3892 labels [1] = mono_mb_get_label (mb);
3893 emit_thread_force_interrupt_checkpoint (mb);
3894 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3896 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3898 /* Add a try clause around the call */
3899 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3900 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3901 clause->data.catch_class = mono_defaults.exception_class;
3902 clause->try_offset = labels [1];
3903 clause->try_len = mono_mb_get_label (mb) - labels [1];
3905 clause->handler_offset = mono_mb_get_label (mb);
3908 mono_mb_emit_stloc (mb, loc_exc);
3909 mono_mb_emit_byte (mb, CEE_LDARG_2);
3910 mono_mb_emit_ldloc (mb, loc_exc);
3911 mono_mb_emit_byte (mb, CEE_STIND_REF);
3913 mono_mb_emit_branch (mb, CEE_LEAVE);
3915 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3917 mono_mb_set_clauses (mb, 1, clause);
3919 mono_mb_patch_branch (mb, labels [2]);
3920 mono_mb_emit_ldloc (mb, loc_res);
3921 mono_mb_emit_byte (mb, CEE_RET);
3926 mono_mb_patch_branch (mb, labels [0]);
3927 emit_thread_force_interrupt_checkpoint (mb);
3928 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3930 mono_mb_emit_ldloc (mb, 0);
3931 mono_mb_emit_byte (mb, CEE_RET);
3936 * generates IL code for the runtime invoke function
3937 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3939 * we also catch exceptions if exc != null
3940 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3941 * it means that the compiled code for METHOD does not have to be looked up
3942 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3943 * its METHOD argument.
3946 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3948 MonoMethodSignature *sig, *csig, *callsig;
3949 MonoMethodBuilder *mb;
3950 GHashTable *cache = NULL;
3951 MonoClass *target_klass;
3952 MonoMethod *res = NULL;
3953 static MonoMethodSignature *cctor_signature = NULL;
3954 static MonoMethodSignature *finalize_signature = NULL;
3956 const char *param_names [16];
3957 gboolean need_direct_wrapper = FALSE;
3962 if (!cctor_signature) {
3963 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3964 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3966 if (!finalize_signature) {
3967 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3968 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3969 finalize_signature->hasthis = 1;
3973 need_direct_wrapper = TRUE;
3976 * Use a separate cache indexed by methods to speed things up and to avoid the
3977 * boundless mempool growth caused by the signature_dup stuff below.
3980 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3982 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3984 res = mono_marshal_find_in_cache (cache, method);
3988 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3989 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3991 * Array Get/Set/Address methods. The JIT implements them using inline code
3992 * so we need to create an invoke wrapper which calls the method directly.
3994 need_direct_wrapper = TRUE;
3997 if (method->string_ctor) {
3998 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4000 callsig = add_string_ctor_signature (method);
4001 /* Can't share this as we push a string as this */
4002 need_direct_wrapper = TRUE;
4004 if (method_is_dynamic (method))
4005 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4007 callsig = mono_method_signature (method);
4010 sig = mono_method_signature (method);
4012 target_klass = get_wrapper_target_class (method->klass->image);
4014 /* Try to share wrappers for non-corlib methods with simple signatures */
4015 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4016 callsig = cctor_signature;
4017 target_klass = mono_defaults.object_class;
4018 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4019 callsig = finalize_signature;
4020 target_klass = mono_defaults.object_class;
4023 if (need_direct_wrapper) {
4024 /* Already searched at the start */
4026 MonoMethodSignature *tmp_sig;
4028 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4029 GHashTable **cache_table = NULL;
4031 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4032 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4034 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4036 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4037 (GCompareFunc)runtime_invoke_signature_equal);
4039 /* from mono_marshal_find_in_cache */
4040 mono_marshal_lock ();
4041 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4042 mono_marshal_unlock ();
4049 /* Make a copy of the signature from the image mempool */
4051 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4055 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4057 csig->ret = &mono_defaults.object_class->byval_arg;
4058 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4059 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4061 csig->params [0] = &mono_defaults.object_class->byval_arg;
4062 csig->params [1] = &mono_defaults.int_class->byval_arg;
4063 csig->params [2] = &mono_defaults.int_class->byval_arg;
4064 csig->params [3] = &mono_defaults.int_class->byval_arg;
4067 /* This is called from runtime code so it has to be cdecl */
4068 csig->call_convention = MONO_CALL_C;
4071 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4072 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4076 param_names [0] = "this";
4077 param_names [1] = "params";
4078 param_names [2] = "exc";
4079 param_names [3] = "method";
4080 mono_mb_set_param_names (mb, param_names);
4082 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4085 if (need_direct_wrapper) {
4087 mb->skip_visibility = 1;
4089 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4090 info->d.runtime_invoke.method = method;
4091 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4093 /* taken from mono_mb_create_and_cache */
4094 mono_marshal_lock ();
4095 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4096 mono_marshal_unlock ();
4098 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4099 info->d.runtime_invoke.sig = callsig;
4101 /* Somebody may have created it before us */
4104 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4106 mono_marshal_lock ();
4107 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4109 GHashTable *direct_cache;
4111 g_hash_table_insert (cache, callsig, res);
4112 /* Can't insert it into wrapper_hash since the key is a signature */
4113 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4115 g_hash_table_insert (direct_cache, method, res);
4117 mono_free_method (newm);
4119 mono_marshal_unlock ();
4122 /* end mono_mb_create_and_cache */
4131 * mono_marshal_get_runtime_invoke_dynamic:
4133 * Return a method which can be used to invoke managed methods from native code
4135 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4136 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4137 * ARGS should point to an architecture specific structure containing
4138 * the arguments and space for the return value.
4139 * The other arguments are the same as for runtime_invoke (), except that
4140 * ARGS should contain the this argument too.
4141 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4142 * is only one copy of it, which is useful in full-aot.
4143 * The wrapper info for the wrapper is a WrapperInfo structure.
4146 mono_marshal_get_runtime_invoke_dynamic (void)
4148 static MonoMethod *method;
4149 MonoMethodSignature *csig;
4150 MonoExceptionClause *clause;
4151 MonoMethodBuilder *mb;
4159 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4161 csig->ret = &mono_defaults.void_class->byval_arg;
4162 csig->params [0] = &mono_defaults.int_class->byval_arg;
4163 csig->params [1] = &mono_defaults.int_class->byval_arg;
4164 csig->params [2] = &mono_defaults.int_class->byval_arg;
4165 csig->params [3] = &mono_defaults.int_class->byval_arg;
4167 name = g_strdup ("runtime_invoke_dynamic");
4168 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4172 /* allocate local 0 (object) tmp */
4173 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4174 /* allocate local 1 (object) exc */
4175 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4177 /* cond set *exc to null */
4178 mono_mb_emit_byte (mb, CEE_LDARG_1);
4179 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4180 mono_mb_emit_byte (mb, 3);
4181 mono_mb_emit_byte (mb, CEE_LDARG_1);
4182 mono_mb_emit_byte (mb, CEE_LDNULL);
4183 mono_mb_emit_byte (mb, CEE_STIND_REF);
4185 emit_thread_force_interrupt_checkpoint (mb);
4187 mono_mb_emit_byte (mb, CEE_LDARG_0);
4188 mono_mb_emit_byte (mb, CEE_LDARG_2);
4189 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4190 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4192 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4194 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4195 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4196 clause->try_len = mono_mb_get_label (mb);
4199 clause->data.filter_offset = mono_mb_get_label (mb);
4201 mono_mb_emit_byte (mb, CEE_POP);
4202 mono_mb_emit_byte (mb, CEE_LDARG_1);
4203 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4204 mono_mb_emit_byte (mb, CEE_PREFIX1);
4205 mono_mb_emit_byte (mb, CEE_CGT_UN);
4206 mono_mb_emit_byte (mb, CEE_PREFIX1);
4207 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4209 clause->handler_offset = mono_mb_get_label (mb);
4212 /* store exception */
4213 mono_mb_emit_stloc (mb, 1);
4215 mono_mb_emit_byte (mb, CEE_LDARG_1);
4216 mono_mb_emit_ldloc (mb, 1);
4217 mono_mb_emit_byte (mb, CEE_STIND_REF);
4219 mono_mb_emit_byte (mb, CEE_LDNULL);
4220 mono_mb_emit_stloc (mb, 0);
4222 /* Check for the abort exception */
4223 mono_mb_emit_ldloc (mb, 1);
4224 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4225 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4227 /* Delay the abort exception */
4228 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4230 mono_mb_patch_short_branch (mb, posna);
4231 mono_mb_emit_branch (mb, CEE_LEAVE);
4233 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4235 mono_mb_set_clauses (mb, 1, clause);
4238 mono_mb_patch_branch (mb, pos);
4239 //mono_mb_emit_ldloc (mb, 0);
4240 mono_mb_emit_byte (mb, CEE_RET);
4241 #endif /* DISABLE_JIT */
4243 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4245 mono_marshal_lock ();
4246 /* double-checked locking */
4248 method = mono_mb_create (mb, csig, 16, info);
4250 mono_marshal_unlock ();
4258 * mono_marshal_get_runtime_invoke_for_sig:
4260 * Return a runtime invoke wrapper for a given signature.
4263 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4265 MonoMethodSignature *csig, *callsig;
4266 MonoMethodBuilder *mb;
4268 GHashTable *cache = NULL;
4269 GHashTable **cache_table = NULL;
4270 MonoMethod *res = NULL;
4272 const char *param_names [16];
4275 /* A simplified version of mono_marshal_get_runtime_invoke */
4277 image = mono_defaults.corlib;
4279 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4281 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4283 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4284 (GCompareFunc)runtime_invoke_signature_equal);
4286 /* from mono_marshal_find_in_cache */
4287 mono_marshal_lock ();
4288 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4289 mono_marshal_unlock ();
4296 /* Make a copy of the signature from the image mempool */
4297 callsig = mono_metadata_signature_dup_full (image, callsig);
4299 csig = mono_metadata_signature_alloc (image, 4);
4300 csig->ret = &mono_defaults.object_class->byval_arg;
4301 csig->params [0] = &mono_defaults.object_class->byval_arg;
4302 csig->params [1] = &mono_defaults.int_class->byval_arg;
4303 csig->params [2] = &mono_defaults.int_class->byval_arg;
4304 csig->params [3] = &mono_defaults.int_class->byval_arg;
4307 /* This is called from runtime code so it has to be cdecl */
4308 csig->call_convention = MONO_CALL_C;
4311 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4312 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4316 param_names [0] = "this";
4317 param_names [1] = "params";
4318 param_names [2] = "exc";
4319 param_names [3] = "method";
4320 mono_mb_set_param_names (mb, param_names);
4322 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4325 /* taken from mono_mb_create_and_cache */
4326 mono_marshal_lock ();
4327 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4328 mono_marshal_unlock ();
4330 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4331 info->d.runtime_invoke.sig = callsig;
4333 /* Somebody may have created it before us */
4336 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4338 mono_marshal_lock ();
4339 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4342 g_hash_table_insert (cache, callsig, res);
4344 mono_free_method (newm);
4346 mono_marshal_unlock ();
4349 /* end mono_mb_create_and_cache */
4358 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4360 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4361 klass->name_space, klass->name);
4363 mono_mb_emit_exception_marshal_directive (mb, msg);
4368 * generates IL code for the icall wrapper (the generated method
4369 * calls the unmanaged code in func)
4370 * The wrapper info for the wrapper is a WrapperInfo structure.
4373 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4375 MonoMethodSignature *csig, *csig2;
4376 MonoMethodBuilder *mb;
4381 g_assert (sig->pinvoke);
4383 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4385 mb->method->save_lmf = 1;
4387 /* Add an explicit this argument */
4389 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4391 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4395 mono_mb_emit_byte (mb, CEE_LDARG_0);
4397 for (i = 0; i < sig->param_count; i++)
4398 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4400 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4401 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4402 mono_mb_emit_calli (mb, csig2);
4403 if (check_exceptions)
4404 emit_thread_interrupt_checkpoint (mb);
4405 mono_mb_emit_byte (mb, CEE_RET);
4408 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4410 if (csig->call_convention == MONO_CALL_VARARG)
4411 csig->call_convention = 0;
4413 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4414 info->d.icall.func = (gpointer)func;
4415 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4422 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4423 MonoMarshalSpec *spec,
4424 int conv_arg, MonoType **conv_arg_type,
4425 MarshalAction action)
4428 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4429 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4435 static MonoClass *ICustomMarshaler = NULL;
4436 static MonoMethod *cleanup_native, *cleanup_managed;
4437 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4438 MonoMethod *get_instance = NULL;
4439 MonoMethodBuilder *mb = m->mb;
4440 char *exception_msg = NULL;
4444 if (!ICustomMarshaler) {
4445 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4447 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4448 goto handle_exception;
4451 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4452 g_assert (cleanup_native);
4453 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4454 g_assert (cleanup_managed);
4455 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4456 g_assert (marshal_managed_to_native);
4457 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4458 g_assert (marshal_native_to_managed);
4460 mono_memory_barrier ();
4461 ICustomMarshaler = klass;
4464 if (spec->data.custom_data.image)
4465 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4467 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4468 g_assert (mtype != NULL);
4469 mono_error_assert_ok (&error);
4470 mklass = mono_class_from_mono_type (mtype);
4471 g_assert (mklass != NULL);
4473 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4474 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4476 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4478 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4479 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4480 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4481 (get_sig->params [0]->type != MONO_TYPE_STRING))
4482 get_instance = NULL;
4486 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);
4489 /* Throw exception and emit compensation code if neccesary */
4490 if (exception_msg) {
4492 case MARSHAL_ACTION_CONV_IN:
4493 case MARSHAL_ACTION_CONV_RESULT:
4494 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4495 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4496 mono_mb_emit_byte (mb, CEE_POP);
4498 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4499 g_free (exception_msg);
4502 case MARSHAL_ACTION_PUSH:
4503 mono_mb_emit_byte (mb, CEE_LDNULL);
4511 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4512 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4515 case MARSHAL_ACTION_CONV_IN:
4517 case MONO_TYPE_CLASS:
4518 case MONO_TYPE_OBJECT:
4519 case MONO_TYPE_STRING:
4520 case MONO_TYPE_ARRAY:
4521 case MONO_TYPE_SZARRAY:
4522 case MONO_TYPE_VALUETYPE:
4526 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4527 g_assert_not_reached ();
4531 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4533 mono_mb_emit_byte (mb, CEE_LDNULL);
4534 mono_mb_emit_stloc (mb, conv_arg);
4536 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4539 /* Minic MS.NET behavior */
4540 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4543 /* Check for null */
4544 mono_mb_emit_ldarg (mb, argnum);
4546 mono_mb_emit_byte (mb, CEE_LDIND_I);
4547 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4549 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4551 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4553 mono_mb_emit_ldarg (mb, argnum);
4555 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4557 if (t->type == MONO_TYPE_VALUETYPE) {
4559 * Since we can't determine the type of the argument, we
4560 * will assume the unmanaged function takes a pointer.
4562 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4564 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4567 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4568 mono_mb_emit_stloc (mb, conv_arg);
4570 mono_mb_patch_branch (mb, pos2);
4573 case MARSHAL_ACTION_CONV_OUT:
4574 /* Check for null */
4575 mono_mb_emit_ldloc (mb, conv_arg);
4576 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4579 mono_mb_emit_ldarg (mb, argnum);
4581 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4583 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4585 mono_mb_emit_ldloc (mb, conv_arg);
4586 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4587 mono_mb_emit_byte (mb, CEE_STIND_REF);
4588 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4589 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4591 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4593 mono_mb_emit_ldloc (mb, conv_arg);
4594 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4596 /* We have nowhere to store the result */
4597 mono_mb_emit_byte (mb, CEE_POP);
4600 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4602 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4604 mono_mb_emit_ldloc (mb, conv_arg);
4606 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4608 mono_mb_patch_branch (mb, pos2);
4611 case MARSHAL_ACTION_PUSH:
4613 mono_mb_emit_ldloc_addr (mb, conv_arg);
4615 mono_mb_emit_ldloc (mb, conv_arg);
4618 case MARSHAL_ACTION_CONV_RESULT:
4619 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4621 mono_mb_emit_stloc (mb, 3);
4623 mono_mb_emit_ldloc (mb, 3);
4624 mono_mb_emit_stloc (mb, loc1);
4626 /* Check for null */
4627 mono_mb_emit_ldloc (mb, 3);
4628 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4630 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4632 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4633 mono_mb_emit_byte (mb, CEE_DUP);
4635 mono_mb_emit_ldloc (mb, 3);
4636 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4637 mono_mb_emit_stloc (mb, 3);
4639 mono_mb_emit_ldloc (mb, loc1);
4640 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4642 mono_mb_patch_branch (mb, pos2);
4645 case MARSHAL_ACTION_MANAGED_CONV_IN:
4646 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4648 mono_mb_emit_byte (mb, CEE_LDNULL);
4649 mono_mb_emit_stloc (mb, conv_arg);
4651 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4654 /* Check for null */
4655 mono_mb_emit_ldarg (mb, argnum);
4657 mono_mb_emit_byte (mb, CEE_LDIND_I);
4658 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4660 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4661 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4663 mono_mb_emit_ldarg (mb, argnum);
4665 mono_mb_emit_byte (mb, CEE_LDIND_I);
4667 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4668 mono_mb_emit_stloc (mb, conv_arg);
4670 mono_mb_patch_branch (mb, pos2);
4673 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4674 g_assert (!t->byref);
4676 loc1 = mono_mb_add_local (mb, &mono_defaults.object_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));
4688 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4689 mono_mb_emit_byte (mb, CEE_DUP);
4691 mono_mb_emit_ldloc (mb, 3);
4692 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4693 mono_mb_emit_stloc (mb, 3);
4695 mono_mb_emit_ldloc (mb, loc1);
4696 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4698 mono_mb_patch_branch (mb, pos2);
4701 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4703 /* Check for null */
4704 mono_mb_emit_ldloc (mb, conv_arg);
4705 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4708 mono_mb_emit_ldarg (mb, argnum);
4710 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4712 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4714 mono_mb_emit_ldloc (mb, conv_arg);
4715 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4716 mono_mb_emit_byte (mb, CEE_STIND_I);
4719 /* Call CleanUpManagedData */
4720 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4722 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4724 mono_mb_emit_ldloc (mb, conv_arg);
4725 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4727 mono_mb_patch_branch (mb, pos2);
4731 g_assert_not_reached ();
4739 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4740 MonoMarshalSpec *spec,
4741 int conv_arg, MonoType **conv_arg_type,
4742 MarshalAction action)
4745 MonoMethodBuilder *mb = m->mb;
4748 case MARSHAL_ACTION_CONV_IN: {
4749 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4751 g_assert (t->type == MONO_TYPE_OBJECT);
4752 g_assert (!t->byref);
4754 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4755 mono_mb_emit_ldarg (mb, argnum);
4756 mono_mb_emit_icon (mb, encoding);
4757 mono_mb_emit_icon (mb, t->attrs);
4758 mono_mb_emit_icall (mb, mono_marshal_asany);
4759 mono_mb_emit_stloc (mb, conv_arg);
4763 case MARSHAL_ACTION_PUSH:
4764 mono_mb_emit_ldloc (mb, conv_arg);
4767 case MARSHAL_ACTION_CONV_OUT: {
4768 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4770 mono_mb_emit_ldarg (mb, argnum);
4771 mono_mb_emit_ldloc (mb, conv_arg);
4772 mono_mb_emit_icon (mb, encoding);
4773 mono_mb_emit_icon (mb, t->attrs);
4774 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4779 g_assert_not_reached ();
4786 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4787 MonoMarshalSpec *spec,
4788 int conv_arg, MonoType **conv_arg_type,
4789 MarshalAction action)
4792 MonoMethodBuilder *mb = m->mb;
4793 MonoClass *klass, *date_time_class;
4796 klass = mono_class_from_mono_type (t);
4798 date_time_class = mono_class_get_date_time_class ();
4801 case MARSHAL_ACTION_CONV_IN:
4802 if (klass == date_time_class) {
4803 /* Convert it to an OLE DATE type */
4804 static MonoMethod *to_oadate;
4807 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4808 g_assert (to_oadate);
4810 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4813 mono_mb_emit_ldarg (mb, argnum);
4814 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4817 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4819 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4821 mono_mb_emit_ldarg_addr (mb, argnum);
4822 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4823 mono_mb_emit_stloc (mb, conv_arg);
4827 mono_mb_patch_branch (mb, pos);
4831 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4832 klass->blittable || klass->enumtype)
4835 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4837 /* store the address of the source into local variable 0 */
4839 mono_mb_emit_ldarg (mb, argnum);
4841 mono_mb_emit_ldarg_addr (mb, argnum);
4843 mono_mb_emit_stloc (mb, 0);
4845 /* allocate space for the native struct and
4846 * store the address into local variable 1 (dest) */
4847 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4848 mono_mb_emit_byte (mb, CEE_PREFIX1);
4849 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4850 mono_mb_emit_stloc (mb, conv_arg);
4853 mono_mb_emit_ldloc (mb, 0);
4854 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4857 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4859 mono_mb_emit_ldloc (mb, conv_arg);
4860 mono_mb_emit_stloc (mb, 1);
4862 /* emit valuetype conversion code */
4863 emit_struct_conv (mb, klass, FALSE);
4867 mono_mb_patch_branch (mb, pos);
4870 case MARSHAL_ACTION_PUSH:
4871 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4873 g_assert (!t->byref);
4875 /* Have to change the signature since the vtype is passed byref */
4876 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4878 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4879 klass->blittable || klass->enumtype)
4880 mono_mb_emit_ldarg_addr (mb, argnum);
4882 mono_mb_emit_ldloc (mb, conv_arg);
4886 if (klass == date_time_class) {
4888 mono_mb_emit_ldloc_addr (mb, conv_arg);
4890 mono_mb_emit_ldloc (mb, conv_arg);
4894 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4895 klass->blittable || klass->enumtype) {
4896 mono_mb_emit_ldarg (mb, argnum);
4899 mono_mb_emit_ldloc (mb, conv_arg);
4901 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4902 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4906 case MARSHAL_ACTION_CONV_OUT:
4907 if (klass == date_time_class) {
4908 /* Convert from an OLE DATE type */
4909 static MonoMethod *from_oadate;
4914 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4916 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4917 g_assert (from_oadate);
4919 mono_mb_emit_ldarg (mb, argnum);
4920 mono_mb_emit_ldloc (mb, conv_arg);
4921 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4922 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4927 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4928 klass->blittable || klass->enumtype)
4932 /* dst = argument */
4933 mono_mb_emit_ldarg (mb, argnum);
4934 mono_mb_emit_stloc (mb, 1);
4936 mono_mb_emit_ldloc (mb, 1);
4937 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4939 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4940 /* src = tmp_locals [i] */
4941 mono_mb_emit_ldloc (mb, conv_arg);
4942 mono_mb_emit_stloc (mb, 0);
4944 /* emit valuetype conversion code */
4945 emit_struct_conv (mb, klass, TRUE);
4949 emit_struct_free (mb, klass, conv_arg);
4952 mono_mb_patch_branch (mb, pos);
4955 case MARSHAL_ACTION_CONV_RESULT:
4956 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4958 mono_mb_emit_stloc (mb, 3);
4962 /* load pointer to returned value type */
4963 g_assert (m->vtaddr_var);
4964 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4965 /* store the address of the source into local variable 0 */
4966 mono_mb_emit_stloc (mb, 0);
4968 mono_mb_emit_ldloc_addr (mb, 3);
4969 mono_mb_emit_stloc (mb, 1);
4971 /* emit valuetype conversion code */
4972 emit_struct_conv (mb, klass, TRUE);
4975 case MARSHAL_ACTION_MANAGED_CONV_IN:
4976 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4977 klass->blittable || klass->enumtype) {
4982 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4984 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4988 mono_mb_emit_ldarg (mb, argnum);
4990 mono_mb_emit_ldarg_addr (mb, argnum);
4991 mono_mb_emit_stloc (mb, 0);
4994 mono_mb_emit_ldloc (mb, 0);
4995 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4998 mono_mb_emit_ldloc_addr (mb, conv_arg);
4999 mono_mb_emit_stloc (mb, 1);
5001 /* emit valuetype conversion code */
5002 emit_struct_conv (mb, klass, TRUE);
5005 mono_mb_patch_branch (mb, pos);
5008 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5009 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5010 klass->blittable || klass->enumtype) {
5014 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5017 /* Check for null */
5018 mono_mb_emit_ldarg (mb, argnum);
5019 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5022 mono_mb_emit_ldloc_addr (mb, conv_arg);
5023 mono_mb_emit_stloc (mb, 0);
5026 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_stloc (mb, 1);
5029 /* emit valuetype conversion code */
5030 emit_struct_conv (mb, klass, FALSE);
5032 mono_mb_patch_branch (mb, pos2);
5035 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5036 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5037 klass->blittable || klass->enumtype) {
5038 mono_mb_emit_stloc (mb, 3);
5043 /* load pointer to returned value type */
5044 g_assert (m->vtaddr_var);
5045 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5047 /* store the address of the source into local variable 0 */
5048 mono_mb_emit_stloc (mb, 0);
5049 /* allocate space for the native struct and
5050 * store the address into dst_ptr */
5051 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5052 m->retobj_class = klass;
5053 g_assert (m->retobj_var);
5054 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5055 mono_mb_emit_byte (mb, CEE_CONV_I);
5056 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5057 mono_mb_emit_stloc (mb, 1);
5058 mono_mb_emit_ldloc (mb, 1);
5059 mono_mb_emit_stloc (mb, m->retobj_var);
5061 /* emit valuetype conversion code */
5062 emit_struct_conv (mb, klass, FALSE);
5066 g_assert_not_reached ();
5073 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5074 MonoMarshalSpec *spec,
5075 int conv_arg, MonoType **conv_arg_type,
5076 MarshalAction action)
5080 case MARSHAL_ACTION_CONV_IN:
5081 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5083 case MARSHAL_ACTION_MANAGED_CONV_IN:
5084 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5088 MonoMethodBuilder *mb = m->mb;
5089 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5090 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5094 case MARSHAL_ACTION_CONV_IN:
5095 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5096 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5099 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5102 mono_mb_emit_ldarg (mb, argnum);
5103 mono_mb_emit_byte (mb, CEE_LDIND_I);
5105 mono_mb_emit_ldarg (mb, argnum);
5109 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5110 mono_mb_emit_exception_marshal_directive (mb, msg);
5112 mono_mb_emit_icall (mb, conv_to_icall (conv));
5114 mono_mb_emit_stloc (mb, conv_arg);
5118 case MARSHAL_ACTION_CONV_OUT:
5119 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5121 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5122 mono_mb_emit_exception_marshal_directive (mb, msg);
5126 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5127 static MonoMethod *m;
5130 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5135 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5136 mono_mb_emit_exception_marshal_directive (mb, msg);
5141 * Have to allocate a new string with the same length as the original, and
5142 * copy the contents of the buffer pointed to by CONV_ARG into it.
5144 g_assert (t->byref);
5145 mono_mb_emit_ldarg (mb, argnum);
5146 mono_mb_emit_ldloc (mb, conv_arg);
5147 mono_mb_emit_ldarg (mb, argnum);
5148 mono_mb_emit_byte (mb, CEE_LDIND_I);
5149 mono_mb_emit_managed_call (mb, m, NULL);
5150 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5151 mono_mb_emit_byte (mb, CEE_STIND_REF);
5152 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5153 mono_mb_emit_ldarg (mb, argnum);
5154 mono_mb_emit_ldloc (mb, conv_arg);
5155 mono_mb_emit_icall (mb, conv_to_icall (conv));
5156 mono_mb_emit_byte (mb, CEE_STIND_REF);
5161 mono_mb_emit_ldloc (mb, conv_arg);
5162 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5163 mono_mb_emit_icall (mb, mono_free_bstr);
5165 mono_mb_emit_icall (mb, mono_marshal_free);
5169 case MARSHAL_ACTION_PUSH:
5170 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5171 mono_mb_emit_ldloc_addr (mb, conv_arg);
5173 mono_mb_emit_ldloc (mb, conv_arg);
5176 case MARSHAL_ACTION_CONV_RESULT:
5177 mono_mb_emit_stloc (mb, 0);
5179 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5181 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5182 mono_mb_emit_exception_marshal_directive (mb, msg);
5186 mono_mb_emit_ldloc (mb, 0);
5187 mono_mb_emit_icall (mb, conv_to_icall (conv));
5188 mono_mb_emit_stloc (mb, 3);
5190 /* free the string */
5191 mono_mb_emit_ldloc (mb, 0);
5192 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5193 mono_mb_emit_icall (mb, mono_free_bstr);
5195 mono_mb_emit_icall (mb, mono_marshal_free);
5198 case MARSHAL_ACTION_MANAGED_CONV_IN:
5199 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5201 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5204 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5208 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5210 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5211 mono_mb_emit_exception_marshal_directive (mb, msg);
5215 mono_mb_emit_ldarg (mb, argnum);
5217 mono_mb_emit_byte (mb, CEE_LDIND_I);
5218 mono_mb_emit_icall (mb, conv_to_icall (conv));
5219 mono_mb_emit_stloc (mb, conv_arg);
5222 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5225 mono_mb_emit_ldarg (mb, argnum);
5226 mono_mb_emit_ldloc (mb, conv_arg);
5227 mono_mb_emit_icall (mb, conv_to_icall (conv));
5228 mono_mb_emit_byte (mb, CEE_STIND_I);
5233 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5234 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5235 /* We need to make a copy so the caller is able to free it */
5236 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5238 mono_mb_emit_icall (mb, conv_to_icall (conv));
5239 mono_mb_emit_stloc (mb, 3);
5243 g_assert_not_reached ();
5251 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5252 MonoMarshalSpec *spec, int conv_arg,
5253 MonoType **conv_arg_type, MarshalAction action)
5256 if (action == MARSHAL_ACTION_CONV_IN)
5257 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5259 MonoMethodBuilder *mb = m->mb;
5262 case MARSHAL_ACTION_CONV_IN: {
5263 MonoType *intptr_type;
5264 int dar_release_slot, pos;
5266 intptr_type = &mono_defaults.int_class->byval_arg;
5267 conv_arg = mono_mb_add_local (mb, intptr_type);
5268 *conv_arg_type = intptr_type;
5270 if (!sh_dangerous_add_ref)
5271 init_safe_handle ();
5273 mono_mb_emit_ldarg (mb, argnum);
5274 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5275 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5277 mono_mb_patch_branch (mb, pos);
5280 * My tests in show that ref SafeHandles are not really
5281 * passed as ref objects. Instead a NULL is passed as the
5284 mono_mb_emit_icon (mb, 0);
5285 mono_mb_emit_stloc (mb, conv_arg);
5289 /* Create local to hold the ref parameter to DangerousAddRef */
5290 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5292 /* set release = false; */
5293 mono_mb_emit_icon (mb, 0);
5294 mono_mb_emit_stloc (mb, dar_release_slot);
5296 /* safehandle.DangerousAddRef (ref release) */
5297 mono_mb_emit_ldarg (mb, argnum);
5298 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5299 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5301 /* Pull the handle field from SafeHandle */
5302 mono_mb_emit_ldarg (mb, argnum);
5303 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5304 mono_mb_emit_byte (mb, CEE_LDIND_I);
5305 mono_mb_emit_stloc (mb, conv_arg);
5310 case MARSHAL_ACTION_PUSH:
5312 mono_mb_emit_ldloc_addr (mb, conv_arg);
5314 mono_mb_emit_ldloc (mb, conv_arg);
5317 case MARSHAL_ACTION_CONV_OUT: {
5318 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5319 int dar_release_slot = conv_arg + 1;
5322 if (!sh_dangerous_release)
5323 init_safe_handle ();
5329 * My tests indicate that ref SafeHandles parameters are not actually
5330 * passed by ref, but instead a new Handle is created regardless of
5331 * whether a change happens in the unmanaged side.
5333 * Also, the Handle is created before calling into unmanaged code,
5334 * but we do not support that mechanism (getting to the original
5335 * handle) and it makes no difference where we create this
5337 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5339 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5342 /* refval = new SafeHandleDerived ()*/
5343 mono_mb_emit_ldarg (mb, argnum);
5344 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5345 mono_mb_emit_byte (mb, CEE_STIND_REF);
5347 /* refval.handle = returned_handle */
5348 mono_mb_emit_ldarg (mb, argnum);
5349 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5350 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5351 mono_mb_emit_ldloc (mb, conv_arg);
5352 mono_mb_emit_byte (mb, CEE_STIND_I);
5354 mono_mb_emit_ldloc (mb, dar_release_slot);
5355 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5356 mono_mb_emit_ldarg (mb, argnum);
5357 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5358 mono_mb_patch_branch (mb, label_next);
5363 case MARSHAL_ACTION_CONV_RESULT: {
5364 MonoMethod *ctor = NULL;
5365 int intptr_handle_slot;
5367 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5368 mono_mb_emit_byte (mb, CEE_POP);
5369 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5373 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5375 mono_mb_emit_byte (mb, CEE_POP);
5376 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5379 /* Store the IntPtr results into a local */
5380 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5381 mono_mb_emit_stloc (mb, intptr_handle_slot);
5383 /* Create return value */
5384 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5385 mono_mb_emit_stloc (mb, 3);
5387 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5388 mono_mb_emit_ldloc (mb, 3);
5389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5390 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5391 mono_mb_emit_byte (mb, CEE_STIND_I);
5395 case MARSHAL_ACTION_MANAGED_CONV_IN:
5396 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5399 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5400 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5403 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5404 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5407 printf ("Unhandled case for MarshalAction: %d\n", action);
5415 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5416 MonoMarshalSpec *spec, int conv_arg,
5417 MonoType **conv_arg_type, MarshalAction action)
5420 if (action == MARSHAL_ACTION_CONV_IN)
5421 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5423 MonoMethodBuilder *mb = m->mb;
5426 case MARSHAL_ACTION_CONV_IN: {
5427 MonoType *intptr_type;
5429 intptr_type = &mono_defaults.int_class->byval_arg;
5430 conv_arg = mono_mb_add_local (mb, intptr_type);
5431 *conv_arg_type = intptr_type;
5434 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5435 mono_mb_emit_exception_marshal_directive (mb, msg);
5438 mono_mb_emit_ldarg_addr (mb, argnum);
5439 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5440 mono_mb_emit_byte (mb, CEE_ADD);
5441 mono_mb_emit_byte (mb, CEE_LDIND_I);
5442 mono_mb_emit_stloc (mb, conv_arg);
5446 case MARSHAL_ACTION_PUSH:
5447 mono_mb_emit_ldloc (mb, conv_arg);
5450 case MARSHAL_ACTION_CONV_OUT: {
5451 /* no resource release required */
5455 case MARSHAL_ACTION_CONV_RESULT: {
5456 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5457 mono_mb_emit_exception_marshal_directive (mb, msg);
5461 case MARSHAL_ACTION_MANAGED_CONV_IN:
5462 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5465 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5466 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5469 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5470 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5473 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5481 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5482 MonoMarshalSpec *spec,
5483 int conv_arg, MonoType **conv_arg_type,
5484 MarshalAction action)
5487 if (action == MARSHAL_ACTION_CONV_IN)
5488 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5490 MonoMethodBuilder *mb = m->mb;
5491 MonoClass *klass = mono_class_from_mono_type (t);
5495 case MARSHAL_ACTION_CONV_IN:
5496 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5497 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5499 m->orig_conv_args [argnum] = 0;
5501 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5502 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5503 mono_mb_emit_exception_marshal_directive (mb, msg);
5507 if (klass->delegate) {
5509 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5510 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5511 mono_mb_emit_exception_marshal_directive (mb, msg);
5513 mono_mb_emit_byte (mb, CEE_LDNULL);
5514 mono_mb_emit_stloc (mb, conv_arg);
5516 mono_mb_emit_ldarg (mb, argnum);
5517 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5518 mono_mb_emit_stloc (mb, conv_arg);
5520 } else if (klass == mono_defaults.stringbuilder_class) {
5521 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5522 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5526 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5527 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5528 mono_mb_emit_exception_marshal_directive (mb, msg);
5534 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5538 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5539 mono_mb_emit_exception_marshal_directive (mb, msg);
5543 mono_mb_emit_ldarg (mb, argnum);
5545 mono_mb_emit_byte (mb, CEE_LDIND_I);
5547 mono_mb_emit_icall (mb, conv_to_icall (conv));
5548 mono_mb_emit_stloc (mb, conv_arg);
5549 } else if (klass->blittable) {
5550 mono_mb_emit_byte (mb, CEE_LDNULL);
5551 mono_mb_emit_stloc (mb, conv_arg);
5553 mono_mb_emit_ldarg (mb, argnum);
5554 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5556 mono_mb_emit_ldarg (mb, argnum);
5557 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5558 mono_mb_emit_stloc (mb, conv_arg);
5560 mono_mb_patch_branch (mb, pos);
5563 mono_mb_emit_byte (mb, CEE_LDNULL);
5564 mono_mb_emit_stloc (mb, conv_arg);
5567 /* we dont need any conversions for out parameters */
5568 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5571 mono_mb_emit_ldarg (mb, argnum);
5572 mono_mb_emit_byte (mb, CEE_LDIND_I);
5575 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5577 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5580 /* store the address of the source into local variable 0 */
5581 mono_mb_emit_stloc (mb, 0);
5582 mono_mb_emit_ldloc (mb, 0);
5583 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5585 /* allocate space for the native struct and store the address */
5586 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5587 mono_mb_emit_byte (mb, CEE_PREFIX1);
5588 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5589 mono_mb_emit_stloc (mb, conv_arg);
5592 /* Need to store the original buffer so we can free it later */
5593 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5594 mono_mb_emit_ldloc (mb, conv_arg);
5595 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5598 /* set the src_ptr */
5599 mono_mb_emit_ldloc (mb, 0);
5600 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5601 mono_mb_emit_stloc (mb, 0);
5604 mono_mb_emit_ldloc (mb, conv_arg);
5605 mono_mb_emit_stloc (mb, 1);
5607 /* emit valuetype conversion code */
5608 emit_struct_conv (mb, klass, FALSE);
5610 mono_mb_patch_branch (mb, pos);
5614 case MARSHAL_ACTION_CONV_OUT:
5615 if (klass == mono_defaults.stringbuilder_class) {
5617 MonoMarshalNative encoding;
5618 MonoMarshalConv conv;
5620 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5621 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5623 g_assert (encoding != -1);
5626 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5630 mono_mb_emit_ldarg (mb, argnum);
5631 mono_mb_emit_ldloc (mb, conv_arg);
5634 case MONO_NATIVE_LPWSTR:
5635 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5637 case MONO_NATIVE_LPSTR:
5638 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5641 g_assert_not_reached ();
5644 mono_mb_emit_byte (mb, CEE_STIND_REF);
5646 mono_mb_emit_ldarg (mb, argnum);
5647 mono_mb_emit_ldloc (mb, conv_arg);
5649 mono_mb_emit_icall (mb, conv_to_icall (conv));
5653 mono_mb_emit_ldloc (mb, conv_arg);
5654 mono_mb_emit_icall (mb, mono_marshal_free);
5659 if (klass->delegate) {
5661 mono_mb_emit_ldarg (mb, argnum);
5662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5663 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5664 mono_mb_emit_ldloc (mb, conv_arg);
5665 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5666 mono_mb_emit_byte (mb, CEE_STIND_REF);
5671 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5672 /* allocate a new object */
5673 mono_mb_emit_ldarg (mb, argnum);
5674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5675 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5676 mono_mb_emit_byte (mb, CEE_STIND_REF);
5679 /* dst = *argument */
5680 mono_mb_emit_ldarg (mb, argnum);
5683 mono_mb_emit_byte (mb, CEE_LDIND_I);
5685 mono_mb_emit_stloc (mb, 1);
5687 mono_mb_emit_ldloc (mb, 1);
5688 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5690 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5691 mono_mb_emit_ldloc (mb, 1);
5692 mono_mb_emit_icon (mb, sizeof (MonoObject));
5693 mono_mb_emit_byte (mb, CEE_ADD);
5694 mono_mb_emit_stloc (mb, 1);
5696 /* src = tmp_locals [i] */
5697 mono_mb_emit_ldloc (mb, conv_arg);
5698 mono_mb_emit_stloc (mb, 0);
5700 /* emit valuetype conversion code */
5701 emit_struct_conv (mb, klass, TRUE);
5703 /* Free the structure returned by the native code */
5704 emit_struct_free (mb, klass, conv_arg);
5706 if (m->orig_conv_args [argnum]) {
5708 * If the native function changed the pointer, then free
5709 * the original structure plus the new pointer.
5711 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5712 mono_mb_emit_ldloc (mb, conv_arg);
5713 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5715 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5716 g_assert (m->orig_conv_args [argnum]);
5718 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5721 mono_mb_emit_ldloc (mb, conv_arg);
5722 mono_mb_emit_icall (mb, mono_marshal_free);
5724 mono_mb_patch_branch (mb, pos2);
5728 /* Free the original structure passed to native code */
5729 emit_struct_free (mb, klass, conv_arg);
5731 mono_mb_patch_branch (mb, pos);
5734 case MARSHAL_ACTION_PUSH:
5736 mono_mb_emit_ldloc_addr (mb, conv_arg);
5738 mono_mb_emit_ldloc (mb, conv_arg);
5741 case MARSHAL_ACTION_CONV_RESULT:
5742 if (klass->delegate) {
5743 g_assert (!t->byref);
5744 mono_mb_emit_stloc (mb, 0);
5745 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5746 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5747 mono_mb_emit_ldloc (mb, 0);
5748 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5749 mono_mb_emit_stloc (mb, 3);
5752 mono_mb_emit_stloc (mb, 0);
5754 /* Make a copy since emit_conv modifies local 0 */
5755 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5756 mono_mb_emit_ldloc (mb, 0);
5757 mono_mb_emit_stloc (mb, loc);
5759 mono_mb_emit_byte (mb, CEE_LDNULL);
5760 mono_mb_emit_stloc (mb, 3);
5762 mono_mb_emit_ldloc (mb, 0);
5763 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5765 /* allocate result object */
5767 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5768 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5769 mono_mb_emit_stloc (mb, 3);
5773 mono_mb_emit_ldloc (mb, 3);
5774 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5775 mono_mb_emit_stloc (mb, 1);
5777 /* emit conversion code */
5778 emit_struct_conv (mb, klass, TRUE);
5780 emit_struct_free (mb, klass, loc);
5782 /* Free the pointer allocated by unmanaged code */
5783 mono_mb_emit_ldloc (mb, loc);
5784 mono_mb_emit_icall (mb, mono_marshal_free);
5785 mono_mb_patch_branch (mb, pos);
5789 case MARSHAL_ACTION_MANAGED_CONV_IN:
5790 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5792 if (klass->delegate) {
5793 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5794 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5795 mono_mb_emit_ldarg (mb, argnum);
5797 mono_mb_emit_byte (mb, CEE_LDIND_I);
5798 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5799 mono_mb_emit_stloc (mb, conv_arg);
5803 if (klass == mono_defaults.stringbuilder_class) {
5804 MonoMarshalNative encoding;
5806 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5809 g_assert (encoding == MONO_NATIVE_LPSTR);
5811 g_assert (!t->byref);
5812 g_assert (encoding != -1);
5814 mono_mb_emit_ldarg (mb, argnum);
5815 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5816 mono_mb_emit_stloc (mb, conv_arg);
5820 /* The class can not have an automatic layout */
5821 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5822 mono_mb_emit_auto_layout_exception (mb, klass);
5826 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5827 mono_mb_emit_byte (mb, CEE_LDNULL);
5828 mono_mb_emit_stloc (mb, conv_arg);
5833 mono_mb_emit_ldarg (mb, argnum);
5837 /* Check for NULL and raise an exception */
5838 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5840 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5842 mono_mb_patch_branch (mb, pos2);
5843 mono_mb_emit_ldarg (mb, argnum);
5844 mono_mb_emit_byte (mb, CEE_LDIND_I);
5847 mono_mb_emit_stloc (mb, 0);
5849 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5850 mono_mb_emit_stloc (mb, conv_arg);
5852 mono_mb_emit_ldloc (mb, 0);
5853 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5855 /* Create and set dst */
5856 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5857 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5858 mono_mb_emit_stloc (mb, conv_arg);
5859 mono_mb_emit_ldloc (mb, conv_arg);
5860 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5861 mono_mb_emit_stloc (mb, 1);
5863 /* emit valuetype conversion code */
5864 emit_struct_conv (mb, klass, TRUE);
5866 mono_mb_patch_branch (mb, pos);
5869 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5870 if (klass->delegate) {
5872 mono_mb_emit_ldarg (mb, argnum);
5873 mono_mb_emit_ldloc (mb, conv_arg);
5874 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5875 mono_mb_emit_byte (mb, CEE_STIND_I);
5881 /* Check for null */
5882 mono_mb_emit_ldloc (mb, conv_arg);
5883 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5884 mono_mb_emit_ldarg (mb, argnum);
5885 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5886 mono_mb_emit_byte (mb, CEE_STIND_REF);
5887 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5889 mono_mb_patch_branch (mb, pos);
5892 mono_mb_emit_ldloc (mb, conv_arg);
5893 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5894 mono_mb_emit_stloc (mb, 0);
5896 /* Allocate and set dest */
5897 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5898 mono_mb_emit_byte (mb, CEE_CONV_I);
5899 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5900 mono_mb_emit_stloc (mb, 1);
5902 /* Update argument pointer */
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_ldloc (mb, 1);
5905 mono_mb_emit_byte (mb, CEE_STIND_I);
5907 /* emit valuetype conversion code */
5908 emit_struct_conv (mb, klass, FALSE);
5910 mono_mb_patch_branch (mb, pos2);
5911 } else if (klass == mono_defaults.stringbuilder_class) {
5912 // FIXME: What to do here ?
5914 /* byval [Out] marshalling */
5916 /* FIXME: Handle null */
5919 mono_mb_emit_ldloc (mb, conv_arg);
5920 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5921 mono_mb_emit_stloc (mb, 0);
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_stloc (mb, 1);
5927 /* emit valuetype conversion code */
5928 emit_struct_conv (mb, klass, FALSE);
5932 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5933 if (klass->delegate) {
5934 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5935 mono_mb_emit_stloc (mb, 3);
5939 /* The class can not have an automatic layout */
5940 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5941 mono_mb_emit_auto_layout_exception (mb, klass);
5945 mono_mb_emit_stloc (mb, 0);
5946 /* Check for null */
5947 mono_mb_emit_ldloc (mb, 0);
5948 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5949 mono_mb_emit_byte (mb, CEE_LDNULL);
5950 mono_mb_emit_stloc (mb, 3);
5951 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5953 mono_mb_patch_branch (mb, pos);
5956 mono_mb_emit_ldloc (mb, 0);
5957 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5958 mono_mb_emit_stloc (mb, 0);
5960 /* Allocate and set dest */
5961 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5962 mono_mb_emit_byte (mb, CEE_CONV_I);
5963 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5964 mono_mb_emit_byte (mb, CEE_DUP);
5965 mono_mb_emit_stloc (mb, 1);
5966 mono_mb_emit_stloc (mb, 3);
5968 emit_struct_conv (mb, klass, FALSE);
5970 mono_mb_patch_branch (mb, pos2);
5974 g_assert_not_reached ();
5985 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5986 MonoMarshalSpec *spec,
5987 int conv_arg, MonoType **conv_arg_type,
5988 MarshalAction action)
5990 MonoMethodBuilder *mb = m->mb;
5991 static MonoMethod *get_object_for_native_variant = NULL;
5992 static MonoMethod *get_native_variant_for_object = NULL;
5994 if (!get_object_for_native_variant)
5995 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5996 g_assert (get_object_for_native_variant);
5998 if (!get_native_variant_for_object)
5999 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6000 g_assert (get_native_variant_for_object);
6003 case MARSHAL_ACTION_CONV_IN: {
6004 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6007 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6009 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6011 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6014 mono_mb_emit_ldarg (mb, argnum);
6016 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6017 mono_mb_emit_ldloc_addr (mb, conv_arg);
6018 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6022 case MARSHAL_ACTION_CONV_OUT: {
6023 static MonoMethod *variant_clear = NULL;
6026 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6027 g_assert (variant_clear);
6030 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6031 mono_mb_emit_ldarg (mb, argnum);
6032 mono_mb_emit_ldloc_addr (mb, conv_arg);
6033 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6034 mono_mb_emit_byte (mb, CEE_STIND_REF);
6037 mono_mb_emit_ldloc_addr (mb, conv_arg);
6038 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6042 case MARSHAL_ACTION_PUSH:
6044 mono_mb_emit_ldloc_addr (mb, conv_arg);
6046 mono_mb_emit_ldloc (mb, conv_arg);
6049 case MARSHAL_ACTION_CONV_RESULT: {
6050 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6051 mono_mb_emit_exception_marshal_directive (mb, msg);
6055 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6056 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6059 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6061 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6063 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6067 mono_mb_emit_ldarg (mb, argnum);
6069 mono_mb_emit_ldarg_addr (mb, argnum);
6070 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6071 mono_mb_emit_stloc (mb, conv_arg);
6075 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6076 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6077 mono_mb_emit_ldloc (mb, conv_arg);
6078 mono_mb_emit_ldarg (mb, argnum);
6079 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6084 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6085 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6086 mono_mb_emit_exception_marshal_directive (mb, msg);
6091 g_assert_not_reached ();
6097 #endif /* DISABLE_COM */
6098 #endif /* DISABLE_JIT */
6101 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6103 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6104 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6106 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6108 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6120 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6121 MonoMarshalSpec *spec,
6122 int conv_arg, MonoType **conv_arg_type,
6123 MarshalAction action)
6127 case MARSHAL_ACTION_CONV_IN:
6128 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6130 case MARSHAL_ACTION_MANAGED_CONV_IN:
6131 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6135 MonoMethodBuilder *mb = m->mb;
6136 MonoClass *klass = mono_class_from_mono_type (t);
6137 gboolean need_convert, need_free;
6138 MonoMarshalNative encoding;
6140 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6143 case MARSHAL_ACTION_CONV_IN:
6144 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6145 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6147 if (klass->element_class->blittable) {
6148 mono_mb_emit_ldarg (mb, argnum);
6150 mono_mb_emit_byte (mb, CEE_LDIND_I);
6151 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6152 mono_mb_emit_stloc (mb, conv_arg);
6155 guint32 label1, label2, label3;
6156 int index_var, src_var, dest_ptr, esize;
6157 MonoMarshalConv conv;
6158 gboolean is_string = FALSE;
6160 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6162 eklass = klass->element_class;
6164 if (eklass == mono_defaults.string_class) {
6166 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6168 else if (eklass == mono_defaults.stringbuilder_class) {
6170 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6173 conv = (MonoMarshalConv)-1;
6175 if (is_string && conv == -1) {
6176 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6177 mono_mb_emit_exception_marshal_directive (mb, msg);
6181 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6182 mono_mb_emit_ldarg (mb, argnum);
6184 mono_mb_emit_byte (mb, CEE_LDIND_I);
6185 mono_mb_emit_stloc (mb, src_var);
6188 mono_mb_emit_ldloc (mb, src_var);
6189 mono_mb_emit_stloc (mb, conv_arg);
6190 mono_mb_emit_ldloc (mb, src_var);
6191 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6194 esize = sizeof (gpointer);
6195 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6196 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6198 esize = mono_class_native_size (eklass, NULL);
6200 /* allocate space for the native struct and store the address */
6201 mono_mb_emit_icon (mb, esize);
6202 mono_mb_emit_ldloc (mb, src_var);
6203 mono_mb_emit_byte (mb, CEE_LDLEN);
6205 if (eklass == mono_defaults.string_class) {
6206 /* Make the array bigger for the terminating null */
6207 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6208 mono_mb_emit_byte (mb, CEE_ADD);
6210 mono_mb_emit_byte (mb, CEE_MUL);
6211 mono_mb_emit_byte (mb, CEE_PREFIX1);
6212 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6213 mono_mb_emit_stloc (mb, conv_arg);
6215 mono_mb_emit_ldloc (mb, conv_arg);
6216 mono_mb_emit_stloc (mb, dest_ptr);
6218 /* Emit marshalling loop */
6219 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6220 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6221 mono_mb_emit_stloc (mb, index_var);
6222 label2 = mono_mb_get_label (mb);
6223 mono_mb_emit_ldloc (mb, index_var);
6224 mono_mb_emit_ldloc (mb, src_var);
6225 mono_mb_emit_byte (mb, CEE_LDLEN);
6226 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6228 /* Emit marshalling code */
6231 mono_mb_emit_ldloc (mb, dest_ptr);
6232 mono_mb_emit_ldloc (mb, src_var);
6233 mono_mb_emit_ldloc (mb, index_var);
6234 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6235 mono_mb_emit_icall (mb, conv_to_icall (conv));
6236 mono_mb_emit_byte (mb, CEE_STIND_I);
6238 /* set the src_ptr */
6239 mono_mb_emit_ldloc (mb, src_var);
6240 mono_mb_emit_ldloc (mb, index_var);
6241 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6242 mono_mb_emit_stloc (mb, 0);
6245 mono_mb_emit_ldloc (mb, dest_ptr);
6246 mono_mb_emit_stloc (mb, 1);
6248 /* emit valuetype conversion code */
6249 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6252 mono_mb_emit_add_to_local (mb, index_var, 1);
6253 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6255 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6257 mono_mb_patch_branch (mb, label3);
6259 if (eklass == mono_defaults.string_class) {
6260 /* Null terminate */
6261 mono_mb_emit_ldloc (mb, dest_ptr);
6262 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6263 mono_mb_emit_byte (mb, CEE_STIND_REF);
6266 mono_mb_patch_branch (mb, label1);
6271 case MARSHAL_ACTION_CONV_OUT:
6272 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6273 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);
6274 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6277 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6278 int param_num = spec->data.array_data.param_num;
6279 MonoType *param_type;
6281 param_type = m->sig->params [param_num];
6283 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6284 char *msg = g_strdup ("Not implemented.");
6285 mono_mb_emit_exception_marshal_directive (mb, msg);
6290 mono_mb_emit_ldarg (mb, argnum);
6292 /* Create the managed array */
6293 mono_mb_emit_ldarg (mb, param_num);
6294 if (m->sig->params [param_num]->byref)
6295 // FIXME: Support other types
6296 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6297 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6298 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6299 /* Store into argument */
6300 mono_mb_emit_byte (mb, CEE_STIND_I);
6304 if (need_convert || need_free) {
6305 /* FIXME: Optimize blittable case */
6307 guint32 label1, label2, label3;
6308 int index_var, src_ptr, loc, esize;
6310 eklass = klass->element_class;
6311 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6312 esize = sizeof (gpointer);
6313 else if (eklass == mono_defaults.char_class)
6314 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6316 esize = mono_class_native_size (eklass, NULL);
6317 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6318 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6321 mono_mb_emit_ldarg (mb, argnum);
6323 mono_mb_emit_byte (mb, CEE_LDIND_I);
6324 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6326 mono_mb_emit_ldloc (mb, conv_arg);
6327 mono_mb_emit_stloc (mb, src_ptr);
6329 /* Emit marshalling loop */
6330 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6331 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6332 mono_mb_emit_stloc (mb, index_var);
6333 label2 = mono_mb_get_label (mb);
6334 mono_mb_emit_ldloc (mb, index_var);
6335 mono_mb_emit_ldarg (mb, argnum);
6337 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6338 mono_mb_emit_byte (mb, CEE_LDLEN);
6339 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6341 /* Emit marshalling code */
6343 if (eklass == mono_defaults.stringbuilder_class) {
6344 gboolean need_free2;
6345 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6347 g_assert (conv != -1);
6350 mono_mb_emit_ldarg (mb, argnum);
6352 mono_mb_emit_byte (mb, CEE_LDIND_I);
6353 mono_mb_emit_ldloc (mb, index_var);
6354 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6357 mono_mb_emit_ldloc (mb, src_ptr);
6358 mono_mb_emit_byte (mb, CEE_LDIND_I);
6360 mono_mb_emit_icall (mb, conv_to_icall (conv));
6364 mono_mb_emit_ldloc (mb, src_ptr);
6365 mono_mb_emit_byte (mb, CEE_LDIND_I);
6367 mono_mb_emit_icall (mb, mono_marshal_free);
6370 else if (eklass == mono_defaults.string_class) {
6373 mono_mb_emit_ldloc (mb, src_ptr);
6374 mono_mb_emit_byte (mb, CEE_LDIND_I);
6376 mono_mb_emit_icall (mb, mono_marshal_free);
6381 /* set the src_ptr */
6382 mono_mb_emit_ldloc (mb, src_ptr);
6383 mono_mb_emit_stloc (mb, 0);
6386 mono_mb_emit_ldarg (mb, argnum);
6388 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6389 mono_mb_emit_ldloc (mb, index_var);
6390 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6391 mono_mb_emit_stloc (mb, 1);
6393 /* emit valuetype conversion code */
6394 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6398 mono_mb_emit_ldloc (mb, src_ptr);
6399 mono_mb_emit_stloc (mb, loc);
6400 mono_mb_emit_ldloc (mb, loc);
6402 emit_struct_free (mb, eklass, loc);
6406 mono_mb_emit_add_to_local (mb, index_var, 1);
6407 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6409 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6411 mono_mb_patch_branch (mb, label1);
6412 mono_mb_patch_branch (mb, label3);
6415 if (klass->element_class->blittable) {
6416 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6418 mono_mb_emit_ldarg (mb, argnum);
6420 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6421 mono_mb_emit_ldloc (mb, conv_arg);
6422 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6427 case MARSHAL_ACTION_PUSH:
6429 mono_mb_emit_ldloc_addr (mb, conv_arg);
6431 mono_mb_emit_ldloc (mb, conv_arg);
6434 case MARSHAL_ACTION_CONV_RESULT:
6435 /* fixme: we need conversions here */
6436 mono_mb_emit_stloc (mb, 3);
6439 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6441 guint32 label1, label2, label3;
6442 int index_var, src_ptr, esize, param_num, num_elem;
6443 MonoMarshalConv conv;
6444 gboolean is_string = FALSE;
6446 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6447 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6450 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6451 mono_mb_emit_exception_marshal_directive (mb, msg);
6455 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6456 mono_mb_emit_exception_marshal_directive (mb, msg);
6459 if (spec->native != MONO_NATIVE_LPARRAY) {
6460 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6461 mono_mb_emit_exception_marshal_directive (mb, msg);
6465 /* FIXME: t is from the method which is wrapped, not the delegate type */
6466 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6468 param_num = spec->data.array_data.param_num;
6469 num_elem = spec->data.array_data.num_elem;
6470 if (spec->data.array_data.elem_mult == 0)
6471 /* param_num is not specified */
6474 if (param_num == -1) {
6475 if (num_elem <= 0) {
6476 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6477 mono_mb_emit_exception_marshal_directive (mb, msg);
6482 /* FIXME: Optimize blittable case */
6484 eklass = klass->element_class;
6485 if (eklass == mono_defaults.string_class) {
6487 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6489 else if (eklass == mono_defaults.stringbuilder_class) {
6491 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6494 conv = (MonoMarshalConv)-1;
6496 mono_marshal_load_type_info (eklass);
6499 esize = sizeof (gpointer);
6501 esize = mono_class_native_size (eklass, NULL);
6502 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6504 mono_mb_emit_byte (mb, CEE_LDNULL);
6505 mono_mb_emit_stloc (mb, conv_arg);
6507 /* Check param index */
6508 if (param_num != -1) {
6509 if (param_num >= m->sig->param_count) {
6510 char *msg = g_strdup ("Array size control parameter index is out of range.");
6511 mono_mb_emit_exception_marshal_directive (mb, msg);
6514 switch (m->sig->params [param_num]->type) {
6527 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6528 mono_mb_emit_exception_marshal_directive (mb, msg);
6535 mono_mb_emit_ldarg (mb, argnum);
6536 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6538 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_stloc (mb, src_ptr);
6541 /* Create managed array */
6543 * The LPArray marshalling spec says that sometimes param_num starts
6544 * from 1, sometimes it starts from 0. But MS seems to allways start
6548 if (param_num == -1) {
6549 mono_mb_emit_icon (mb, num_elem);
6551 mono_mb_emit_ldarg (mb, param_num);
6553 mono_mb_emit_icon (mb, num_elem);
6554 mono_mb_emit_byte (mb, CEE_ADD);
6556 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6559 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6560 mono_mb_emit_stloc (mb, conv_arg);
6562 if (eklass->blittable) {
6563 mono_mb_emit_ldloc (mb, conv_arg);
6564 mono_mb_emit_byte (mb, CEE_CONV_I);
6565 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6566 mono_mb_emit_byte (mb, CEE_ADD);
6567 mono_mb_emit_ldarg (mb, argnum);
6568 mono_mb_emit_ldloc (mb, conv_arg);
6569 mono_mb_emit_byte (mb, CEE_LDLEN);
6570 mono_mb_emit_icon (mb, esize);
6571 mono_mb_emit_byte (mb, CEE_MUL);
6572 mono_mb_emit_byte (mb, CEE_PREFIX1);
6573 mono_mb_emit_byte (mb, CEE_CPBLK);
6577 /* Emit marshalling loop */
6578 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6579 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6580 mono_mb_emit_stloc (mb, index_var);
6581 label2 = mono_mb_get_label (mb);
6582 mono_mb_emit_ldloc (mb, index_var);
6583 mono_mb_emit_ldloc (mb, conv_arg);
6584 mono_mb_emit_byte (mb, CEE_LDLEN);
6585 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6587 /* Emit marshalling code */
6589 g_assert (conv != -1);
6591 mono_mb_emit_ldloc (mb, conv_arg);
6592 mono_mb_emit_ldloc (mb, index_var);
6594 mono_mb_emit_ldloc (mb, src_ptr);
6595 mono_mb_emit_byte (mb, CEE_LDIND_I);
6597 mono_mb_emit_icall (mb, conv_to_icall (conv));
6598 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6601 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6602 mono_mb_emit_exception_marshal_directive (mb, msg);
6606 mono_mb_emit_add_to_local (mb, index_var, 1);
6607 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6609 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6611 mono_mb_patch_branch (mb, label1);
6612 mono_mb_patch_branch (mb, label3);
6616 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6618 guint32 label1, label2, label3;
6619 int index_var, dest_ptr, esize, param_num, num_elem;
6620 MonoMarshalConv conv;
6621 gboolean is_string = FALSE;
6624 /* Already handled in CONV_IN */
6627 /* These are already checked in CONV_IN */
6628 g_assert (!t->byref);
6629 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6630 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6632 param_num = spec->data.array_data.param_num;
6633 num_elem = spec->data.array_data.num_elem;
6635 if (spec->data.array_data.elem_mult == 0)
6636 /* param_num is not specified */
6639 if (param_num == -1) {
6640 if (num_elem <= 0) {
6641 g_assert_not_reached ();
6645 /* FIXME: Optimize blittable case */
6647 eklass = klass->element_class;
6648 if (eklass == mono_defaults.string_class) {
6650 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6652 else if (eklass == mono_defaults.stringbuilder_class) {
6654 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6657 conv = (MonoMarshalConv)-1;
6659 mono_marshal_load_type_info (eklass);
6662 esize = sizeof (gpointer);
6664 esize = mono_class_native_size (eklass, NULL);
6666 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6669 mono_mb_emit_ldloc (mb, conv_arg);
6670 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6672 mono_mb_emit_ldarg (mb, argnum);
6673 mono_mb_emit_stloc (mb, dest_ptr);
6675 if (eklass->blittable) {
6677 mono_mb_emit_ldarg (mb, argnum);
6679 mono_mb_emit_ldloc (mb, conv_arg);
6680 mono_mb_emit_byte (mb, CEE_CONV_I);
6681 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6682 mono_mb_emit_byte (mb, CEE_ADD);
6684 mono_mb_emit_ldloc (mb, conv_arg);
6685 mono_mb_emit_byte (mb, CEE_LDLEN);
6686 mono_mb_emit_icon (mb, esize);
6687 mono_mb_emit_byte (mb, CEE_MUL);
6688 mono_mb_emit_byte (mb, CEE_PREFIX1);
6689 mono_mb_emit_byte (mb, CEE_CPBLK);
6693 /* Emit marshalling loop */
6694 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6695 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6696 mono_mb_emit_stloc (mb, index_var);
6697 label2 = mono_mb_get_label (mb);
6698 mono_mb_emit_ldloc (mb, index_var);
6699 mono_mb_emit_ldloc (mb, conv_arg);
6700 mono_mb_emit_byte (mb, CEE_LDLEN);
6701 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6703 /* Emit marshalling code */
6705 g_assert (conv != -1);
6708 mono_mb_emit_ldloc (mb, dest_ptr);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6712 mono_mb_emit_ldloc (mb, index_var);
6714 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6716 mono_mb_emit_icall (mb, conv_to_icall (conv));
6717 mono_mb_emit_byte (mb, CEE_STIND_I);
6720 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6721 mono_mb_emit_exception_marshal_directive (mb, msg);
6725 mono_mb_emit_add_to_local (mb, index_var, 1);
6726 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6728 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6730 mono_mb_patch_branch (mb, label1);
6731 mono_mb_patch_branch (mb, label3);
6735 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6737 guint32 label1, label2, label3;
6738 int index_var, src, dest, esize;
6739 MonoMarshalConv conv = (MonoMarshalConv)-1;
6740 gboolean is_string = FALSE;
6742 g_assert (!t->byref);
6744 eklass = klass->element_class;
6746 mono_marshal_load_type_info (eklass);
6748 if (eklass == mono_defaults.string_class) {
6750 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6753 g_assert_not_reached ();
6757 esize = sizeof (gpointer);
6758 else if (eklass == mono_defaults.char_class)
6759 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6761 esize = mono_class_native_size (eklass, NULL);
6763 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6764 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6766 mono_mb_emit_stloc (mb, src);
6767 mono_mb_emit_ldloc (mb, src);
6768 mono_mb_emit_stloc (mb, 3);
6770 /* Check for null */
6771 mono_mb_emit_ldloc (mb, src);
6772 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6774 /* Allocate native array */
6775 mono_mb_emit_icon (mb, esize);
6776 mono_mb_emit_ldloc (mb, src);
6777 mono_mb_emit_byte (mb, CEE_LDLEN);
6779 if (eklass == mono_defaults.string_class) {
6780 /* Make the array bigger for the terminating null */
6781 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6782 mono_mb_emit_byte (mb, CEE_ADD);
6784 mono_mb_emit_byte (mb, CEE_MUL);
6785 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6786 mono_mb_emit_stloc (mb, dest);
6787 mono_mb_emit_ldloc (mb, dest);
6788 mono_mb_emit_stloc (mb, 3);
6790 /* Emit marshalling loop */
6791 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6792 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6793 mono_mb_emit_stloc (mb, index_var);
6794 label2 = mono_mb_get_label (mb);
6795 mono_mb_emit_ldloc (mb, index_var);
6796 mono_mb_emit_ldloc (mb, src);
6797 mono_mb_emit_byte (mb, CEE_LDLEN);
6798 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6800 /* Emit marshalling code */
6802 g_assert (conv != -1);
6805 mono_mb_emit_ldloc (mb, dest);
6808 mono_mb_emit_ldloc (mb, src);
6809 mono_mb_emit_ldloc (mb, index_var);
6811 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6813 mono_mb_emit_icall (mb, conv_to_icall (conv));
6814 mono_mb_emit_byte (mb, CEE_STIND_I);
6817 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6818 mono_mb_emit_exception_marshal_directive (mb, msg);
6822 mono_mb_emit_add_to_local (mb, index_var, 1);
6823 mono_mb_emit_add_to_local (mb, dest, esize);
6825 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6827 mono_mb_patch_branch (mb, label3);
6828 mono_mb_patch_branch (mb, label1);
6832 g_assert_not_reached ();
6839 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6842 return &mono_defaults.int32_class->byval_arg;
6844 switch (spec->native) {
6845 case MONO_NATIVE_I1:
6846 case MONO_NATIVE_U1:
6847 return &mono_defaults.byte_class->byval_arg;
6848 case MONO_NATIVE_VARIANTBOOL:
6849 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6850 return &mono_defaults.int16_class->byval_arg;
6851 case MONO_NATIVE_BOOLEAN:
6852 return &mono_defaults.int32_class->byval_arg;
6854 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6855 return &mono_defaults.int32_class->byval_arg;
6861 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6863 MonoClass* conv_arg_class = mono_defaults.int32_class;
6865 switch (spec->native) {
6866 case MONO_NATIVE_I1:
6867 case MONO_NATIVE_U1:
6868 conv_arg_class = mono_defaults.byte_class;
6869 if (ldop) *ldop = CEE_LDIND_I1;
6871 case MONO_NATIVE_VARIANTBOOL:
6872 conv_arg_class = mono_defaults.int16_class;
6873 if (ldop) *ldop = CEE_LDIND_I2;
6875 case MONO_NATIVE_BOOLEAN:
6878 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6881 return conv_arg_class;
6885 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6886 MonoMarshalSpec *spec,
6887 int conv_arg, MonoType **conv_arg_type,
6888 MarshalAction action)
6892 case MARSHAL_ACTION_CONV_IN:
6894 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6896 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6899 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6900 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6902 *conv_arg_type = &conv_arg_class->this_arg;
6904 *conv_arg_type = &conv_arg_class->byval_arg;
6910 MonoMethodBuilder *mb = m->mb;
6913 case MARSHAL_ACTION_CONV_IN: {
6914 MonoType *local_type;
6916 guint8 ldc_op = CEE_LDC_I4_1;
6918 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6920 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6922 *conv_arg_type = local_type;
6923 conv_arg = mono_mb_add_local (mb, local_type);
6925 mono_mb_emit_ldarg (mb, argnum);
6927 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6928 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6929 mono_mb_emit_byte (mb, ldc_op);
6930 mono_mb_emit_stloc (mb, conv_arg);
6931 mono_mb_patch_branch (mb, label_false);
6936 case MARSHAL_ACTION_CONV_OUT:
6938 int label_false, label_end;
6942 mono_mb_emit_ldarg (mb, argnum);
6943 mono_mb_emit_ldloc (mb, conv_arg);
6945 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6946 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6948 label_end = mono_mb_emit_branch (mb, CEE_BR);
6949 mono_mb_patch_branch (mb, label_false);
6950 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6951 mono_mb_patch_branch (mb, label_end);
6953 mono_mb_emit_byte (mb, CEE_STIND_I1);
6957 case MARSHAL_ACTION_PUSH:
6959 mono_mb_emit_ldloc_addr (mb, conv_arg);
6961 mono_mb_emit_ldloc (mb, conv_arg);
6963 mono_mb_emit_ldarg (mb, argnum);
6966 case MARSHAL_ACTION_CONV_RESULT:
6967 /* maybe we need to make sure that it fits within 8 bits */
6968 mono_mb_emit_stloc (mb, 3);
6971 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6972 MonoClass* conv_arg_class = mono_defaults.int32_class;
6973 guint8 ldop = CEE_LDIND_I4;
6974 int label_null, label_false;
6976 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6977 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6980 *conv_arg_type = &conv_arg_class->this_arg;
6982 *conv_arg_type = &conv_arg_class->byval_arg;
6985 mono_mb_emit_ldarg (mb, argnum);
6989 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6990 mono_mb_emit_ldarg (mb, argnum);
6991 mono_mb_emit_byte (mb, ldop);
6995 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6996 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6997 mono_mb_emit_stloc (mb, conv_arg);
6998 mono_mb_patch_branch (mb, label_false);
7001 mono_mb_patch_branch (mb, label_null);
7005 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7006 guint8 stop = CEE_STIND_I4;
7007 guint8 ldc_op = CEE_LDC_I4_1;
7008 int label_null,label_false, label_end;;
7013 switch (spec->native) {
7014 case MONO_NATIVE_I1:
7015 case MONO_NATIVE_U1:
7016 stop = CEE_STIND_I1;
7018 case MONO_NATIVE_VARIANTBOOL:
7019 stop = CEE_STIND_I2;
7020 ldc_op = CEE_LDC_I4_M1;
7028 mono_mb_emit_ldarg (mb, argnum);
7029 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7031 mono_mb_emit_ldarg (mb, argnum);
7032 mono_mb_emit_ldloc (mb, conv_arg);
7034 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7035 mono_mb_emit_byte (mb, ldc_op);
7036 label_end = mono_mb_emit_branch (mb, CEE_BR);
7038 mono_mb_patch_branch (mb, label_false);
7039 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7040 mono_mb_patch_branch (mb, label_end);
7042 mono_mb_emit_byte (mb, stop);
7043 mono_mb_patch_branch (mb, label_null);
7048 g_assert_not_reached ();
7055 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7056 MonoMarshalSpec *spec, int conv_arg,
7057 MonoType **conv_arg_type, MarshalAction action)
7060 MonoMethodBuilder *mb = m->mb;
7063 case MARSHAL_ACTION_CONV_IN:
7064 /* MS seems to allow this in some cases, ie. bxc #158 */
7066 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7067 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7068 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7073 case MARSHAL_ACTION_PUSH:
7074 mono_mb_emit_ldarg (mb, argnum);
7077 case MARSHAL_ACTION_CONV_RESULT:
7078 /* no conversions necessary */
7079 mono_mb_emit_stloc (mb, 3);
7090 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7091 MonoMarshalSpec *spec, int conv_arg,
7092 MonoType **conv_arg_type, MarshalAction action)
7095 MonoMethodBuilder *mb = m->mb;
7098 case MARSHAL_ACTION_PUSH:
7099 /* fixme: dont know how to marshal that. We cant simply
7100 * convert it to a one byte UTF8 character, because an
7101 * unicode character may need more that one byte in UTF8 */
7102 mono_mb_emit_ldarg (mb, argnum);
7105 case MARSHAL_ACTION_CONV_RESULT:
7106 /* fixme: we need conversions here */
7107 mono_mb_emit_stloc (mb, 3);
7118 emit_marshal_scalar (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_PUSH:
7127 mono_mb_emit_ldarg (mb, argnum);
7130 case MARSHAL_ACTION_CONV_RESULT:
7131 /* no conversions necessary */
7132 mono_mb_emit_stloc (mb, 3);
7143 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7144 MonoMarshalSpec *spec, int conv_arg,
7145 MonoType **conv_arg_type, MarshalAction action)
7147 /* Ensure that we have marshalling info for this param */
7148 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7150 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7151 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7153 if (spec && spec->native == MONO_NATIVE_ASANY)
7154 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7157 case MONO_TYPE_VALUETYPE:
7158 if (t->data.klass == mono_defaults.handleref_class)
7159 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7161 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7162 case MONO_TYPE_STRING:
7163 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7164 case MONO_TYPE_CLASS:
7165 case MONO_TYPE_OBJECT:
7167 if (spec && spec->native == MONO_NATIVE_STRUCT)
7168 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7170 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7171 spec->native == MONO_NATIVE_IDISPATCH ||
7172 spec->native == MONO_NATIVE_INTERFACE))
7173 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7174 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7175 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7176 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7177 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7180 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7181 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7182 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7184 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7185 case MONO_TYPE_ARRAY:
7186 case MONO_TYPE_SZARRAY:
7187 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7188 case MONO_TYPE_BOOLEAN:
7189 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7191 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7192 case MONO_TYPE_CHAR:
7193 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7206 case MONO_TYPE_FNPTR:
7207 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7208 case MONO_TYPE_GENERICINST:
7209 if (mono_type_generic_inst_is_valuetype (t))
7210 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7220 * mono_marshal_emit_native_wrapper:
7221 * @image: the image to use for looking up custom marshallers
7222 * @sig: The signature of the native function
7223 * @piinfo: Marshalling information
7224 * @mspecs: Marshalling information
7225 * @aot: whenever the created method will be compiled by the AOT compiler
7226 * @method: if non-NULL, the pinvoke method to call
7227 * @check_exceptions: Whenever to check for pending exceptions after the native call
7228 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7230 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7233 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)
7235 EmitMarshalContext m;
7236 MonoMethodSignature *csig;
7238 MonoExceptionClause *clause;
7239 int i, argnum, *tmp_locals;
7240 int type, param_shift = 0;
7241 static MonoMethodSignature *get_last_error_sig = NULL;
7242 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7245 memset (&m, 0, sizeof (m));
7250 /* we copy the signature, so that we can set pinvoke to 0 */
7252 /* The function address is passed as the first argument */
7253 g_assert (!sig->hasthis);
7256 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7264 /* we allocate local for use with emit_struct_conv() */
7265 /* allocate local 0 (pointer) src_ptr */
7266 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7267 /* allocate local 1 (pointer) dst_ptr */
7268 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7269 /* allocate local 2 (boolean) delete_old */
7270 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7272 /* delete_old = FALSE */
7273 mono_mb_emit_icon (mb, 0);
7274 mono_mb_emit_stloc (mb, 2);
7276 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7277 /* allocate local 3 to store the return value */
7278 mono_mb_add_local (mb, sig->ret);
7281 if (mono_threads_is_coop_enabled ()) {
7282 /* local 4, dummy local used to get a stack address for suspend funcs */
7283 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7284 /* local 5, the local to be used when calling the suspend funcs */
7285 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7286 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7288 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7289 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7292 if (MONO_TYPE_ISSTRUCT (sig->ret))
7293 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7295 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7296 /* Return type custom marshaling */
7298 * Since we can't determine the return type of the unmanaged function,
7299 * we assume it returns a pointer, and pass that pointer to
7300 * MarshalNativeToManaged.
7302 csig->ret = &mono_defaults.int_class->byval_arg;
7305 /* we first do all conversions */
7306 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7307 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7309 for (i = 0; i < sig->param_count; i ++) {
7310 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7313 // In coop mode need to register blocking state during native call
7314 if (mono_threads_is_coop_enabled ()) {
7315 // Perform an extra, early lookup of the function address, so any exceptions
7316 // potentially resulting from the lookup occur before entering blocking mode.
7317 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7318 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7319 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7320 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7323 clause->try_offset = mono_mb_get_label (mb);
7325 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7326 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7327 mono_mb_emit_stloc (mb, coop_gc_var);
7330 /* push all arguments */
7333 mono_mb_emit_byte (mb, CEE_LDARG_0);
7335 for (i = 0; i < sig->param_count; i++) {
7336 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7339 /* call the native method */
7341 mono_mb_emit_byte (mb, CEE_LDARG_0);
7342 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7343 mono_mb_emit_byte (mb, CEE_LDIND_I);
7344 mono_mb_emit_calli (mb, csig);
7345 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7347 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7349 g_assert_not_reached ();
7354 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7356 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7357 mono_mb_emit_calli (mb, csig);
7359 mono_mb_emit_native_call (mb, csig, func);
7363 /* Set LastError if needed */
7364 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7365 if (!get_last_error_sig) {
7366 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7367 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7368 get_last_error_sig->pinvoke = 1;
7373 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7374 * clobber its value.
7376 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7377 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7379 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7383 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7384 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7385 mono_class_init (klass);
7386 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7387 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7388 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7389 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7390 mono_mb_emit_stloc (mb, m.vtaddr_var);
7394 /* Unblock before converting the result, since that can involve calls into the runtime */
7395 if (mono_threads_is_coop_enabled ()) {
7396 mono_mb_emit_ldloc (mb, coop_gc_var);
7397 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7398 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7399 mono_mb_emit_icon (mb, 1);
7400 mono_mb_emit_stloc (mb, coop_unblocked_var);
7403 /* convert the result */
7404 if (!sig->ret->byref) {
7405 MonoMarshalSpec *spec = mspecs [0];
7406 type = sig->ret->type;
7408 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7409 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7413 case MONO_TYPE_VOID:
7415 case MONO_TYPE_VALUETYPE:
7416 klass = sig->ret->data.klass;
7417 if (klass->enumtype) {
7418 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7421 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7435 case MONO_TYPE_FNPTR:
7436 case MONO_TYPE_STRING:
7437 case MONO_TYPE_CLASS:
7438 case MONO_TYPE_OBJECT:
7439 case MONO_TYPE_BOOLEAN:
7440 case MONO_TYPE_ARRAY:
7441 case MONO_TYPE_SZARRAY:
7442 case MONO_TYPE_CHAR:
7444 case MONO_TYPE_GENERICINST:
7445 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7447 case MONO_TYPE_TYPEDBYREF:
7449 g_warning ("return type 0x%02x unknown", sig->ret->type);
7450 g_assert_not_reached ();
7454 mono_mb_emit_stloc (mb, 3);
7457 if (mono_threads_is_coop_enabled ()) {
7460 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7462 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7463 clause->handler_offset = mono_mb_get_label (mb);
7465 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7466 mono_mb_emit_icon (mb, 1);
7467 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7469 mono_mb_emit_ldloc (mb, coop_gc_var);
7470 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7471 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7473 mono_mb_patch_branch (mb, pos);
7475 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7477 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7479 mono_mb_patch_branch (mb, leave_pos);
7483 * Need to call this after converting the result since MONO_VTADDR needs
7484 * to be adjacent to the call instruction.
7486 if (check_exceptions)
7487 emit_thread_interrupt_checkpoint (mb);
7489 /* we need to convert byref arguments back and free string arrays */
7490 for (i = 0; i < sig->param_count; i++) {
7491 MonoType *t = sig->params [i];
7492 MonoMarshalSpec *spec = mspecs [i + 1];
7494 argnum = i + param_shift;
7496 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7497 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7502 case MONO_TYPE_STRING:
7503 case MONO_TYPE_VALUETYPE:
7504 case MONO_TYPE_CLASS:
7505 case MONO_TYPE_OBJECT:
7506 case MONO_TYPE_SZARRAY:
7507 case MONO_TYPE_BOOLEAN:
7508 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7515 if (!MONO_TYPE_IS_VOID(sig->ret))
7516 mono_mb_emit_ldloc (mb, 3);
7518 mono_mb_emit_byte (mb, CEE_RET);
7520 if (mono_threads_is_coop_enabled ()) {
7521 mono_mb_set_clauses (mb, 1, clause);
7524 #endif /* DISABLE_JIT */
7527 * mono_marshal_get_native_wrapper:
7528 * @method: The MonoMethod to wrap.
7529 * @check_exceptions: Whenever to check for pending exceptions
7531 * generates IL code for the pinvoke wrapper (the generated method
7532 * calls the unmanaged code in piinfo->addr)
7533 * The wrapper info for the wrapper is a WrapperInfo structure.
7536 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7538 MonoMethodSignature *sig, *csig;
7539 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7540 MonoMethodBuilder *mb;
7541 MonoMarshalSpec **mspecs;
7544 gboolean pinvoke = FALSE;
7547 const char *exc_class = "MissingMethodException";
7548 const char *exc_arg = NULL;
7551 g_assert (method != NULL);
7552 g_assert (mono_method_signature (method)->pinvoke);
7554 GHashTable **cache_ptr;
7557 if (check_exceptions)
7558 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7560 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7562 if (check_exceptions)
7563 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7565 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7568 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7570 if ((res = mono_marshal_find_in_cache (cache, method)))
7573 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7574 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7578 return mono_cominterop_get_native_wrapper (method);
7580 g_assert_not_reached ();
7584 sig = mono_method_signature (method);
7586 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7587 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7590 if (!piinfo->addr) {
7592 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7593 exc_arg = "Method contains unsupported native code";
7595 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7597 piinfo->addr = mono_lookup_internal_call (method);
7601 /* hack - redirect certain string constructors to CreateString */
7602 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7603 g_assert (!pinvoke);
7604 g_assert (method->string_ctor);
7605 g_assert (sig->hasthis);
7607 /* CreateString returns a value */
7608 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7609 csig->ret = &mono_defaults.string_class->byval_arg;
7613 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7614 if (!strcmp ("CreateString", res->name) &&
7615 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7618 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7619 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7621 /* create a wrapper to preserve .ctor in stack trace */
7622 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7625 mono_mb_emit_byte (mb, CEE_LDARG_0);
7626 for (i = 1; i <= csig->param_count; i++)
7627 mono_mb_emit_ldarg (mb, i);
7628 mono_mb_emit_managed_call (mb, res, NULL);
7629 mono_mb_emit_byte (mb, CEE_RET);
7632 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7633 info->d.string_ctor.method = method;
7635 /* use native_wrapper_cache because internal calls are looked up there */
7636 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7637 csig->param_count + 1, info, NULL);
7644 /* exception will be thrown */
7645 piinfo->addr = NULL;
7646 g_warning ("cannot find CreateString for .ctor");
7649 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7651 mb->method->save_lmf = 1;
7654 * In AOT mode and embedding scenarios, it is possible that the icall is not
7655 * registered in the runtime doing the AOT compilation.
7657 if (!piinfo->addr && !aot) {
7659 mono_mb_emit_exception (mb, exc_class, exc_arg);
7661 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7662 info->d.managed_to_native.method = method;
7664 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7666 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7667 csig->param_count + 16, info, NULL);
7673 /* internal calls: we simply push all arguments and call the method (no conversions) */
7674 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7676 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7678 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7680 /* hack - string constructors returns a value */
7681 if (method->string_ctor)
7682 csig->ret = &mono_defaults.string_class->byval_arg;
7689 * Add a null check since public icalls can be called with 'call' which
7690 * does no such check.
7692 mono_mb_emit_byte (mb, CEE_LDARG_0);
7693 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7694 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7695 mono_mb_patch_branch (mb, pos);
7697 mono_mb_emit_byte (mb, CEE_LDARG_0);
7700 for (i = 0; i < sig->param_count; i++)
7701 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7704 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7705 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7706 mono_mb_emit_calli (mb, csig);
7708 g_assert (piinfo->addr);
7709 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7711 if (check_exceptions)
7712 emit_thread_interrupt_checkpoint (mb);
7713 mono_mb_emit_byte (mb, CEE_RET);
7715 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7716 info->d.managed_to_native.method = method;
7718 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7720 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7729 g_assert (piinfo->addr);
7732 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7733 mono_method_get_marshal_info (method, mspecs);
7735 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7737 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7738 info->d.managed_to_native.method = method;
7740 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7742 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7747 for (i = sig->param_count; i >= 0; i--)
7749 mono_metadata_free_marshal_spec (mspecs [i]);
7753 /* mono_method_print_code (res); */
7759 * mono_marshal_get_native_func_wrapper:
7760 * @image: The image to use for memory allocation and for looking up custom marshallers.
7761 * @sig: The signature of the function
7762 * @func: The native function to wrap
7764 * Returns a wrapper method around native functions, similar to the pinvoke
7768 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7769 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7771 MonoMethodSignature *csig;
7773 SignaturePointerPair key, *new_key;
7774 MonoMethodBuilder *mb;
7783 // Generic types are not safe to place in MonoImage caches.
7784 g_assert (!sig->is_inflated);
7786 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7787 if ((res = mono_marshal_find_in_cache (cache, &key)))
7790 name = g_strdup_printf ("wrapper_native_%p", func);
7791 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7792 mb->method->save_lmf = 1;
7795 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7798 csig = mono_metadata_signature_dup_full (image, sig);
7801 new_key = g_new (SignaturePointerPair,1);
7802 new_key->sig = csig;
7803 new_key->pointer = func;
7805 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7811 mono_marshal_set_wrapper_info (res, NULL);
7817 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7821 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7823 MonoMethodSignature *sig, *csig;
7824 MonoMethodBuilder *mb;
7829 MonoMethodPInvoke mpiinfo;
7830 MonoMethodPInvoke *piinfo = &mpiinfo;
7831 MonoMarshalSpec **mspecs;
7832 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7833 MonoImage *image = invoke->klass->image;
7836 // FIXME: include UnmanagedFunctionPointerAttribute info
7839 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7841 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7843 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7846 memset (&mpiinfo, 0, sizeof (mpiinfo));
7847 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7849 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7850 mono_method_get_marshal_info (invoke, mspecs);
7851 /* Freed below so don't alloc from mempool */
7852 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7855 name = g_strdup_printf ("wrapper_aot_native");
7856 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7857 mb->method->save_lmf = 1;
7860 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7863 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7864 info->d.managed_to_native.method = invoke;
7866 g_assert (!sig->hasthis);
7867 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7869 res = mono_mb_create_and_cache_full (cache, invoke,
7870 mb, csig, csig->param_count + 16,
7874 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7876 mono_metadata_free_marshal_spec (mspecs [i]);
7884 * mono_marshal_emit_managed_wrapper:
7886 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7887 * the delegate which wraps the managed method to be called. For closed delegates,
7888 * it could have fewer parameters than the method it wraps.
7889 * THIS_LOC is the memory location where the target of the delegate is stored.
7892 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7895 MonoMethodSignature *sig, *csig;
7901 /* we first do all conversions */
7902 for (i = 0; i < sig->param_count; i ++) {
7903 MonoType *t = sig->params [i];
7906 case MONO_TYPE_OBJECT:
7907 case MONO_TYPE_CLASS:
7908 case MONO_TYPE_VALUETYPE:
7909 case MONO_TYPE_ARRAY:
7910 case MONO_TYPE_SZARRAY:
7911 case MONO_TYPE_STRING:
7912 case MONO_TYPE_BOOLEAN:
7913 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7917 if (!sig->ret->byref) {
7918 switch (sig->ret->type) {
7919 case MONO_TYPE_STRING:
7920 csig->ret = &mono_defaults.int_class->byval_arg;
7927 MonoMethodSignature *sig, *csig;
7928 MonoExceptionClause *clause;
7931 gboolean closed = FALSE;
7936 /* allocate local 0 (pointer) src_ptr */
7937 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7938 /* allocate local 1 (pointer) dst_ptr */
7939 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7940 /* allocate local 2 (boolean) delete_old */
7941 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7943 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7944 /* Closed delegate */
7945 g_assert (sig->param_count == invoke_sig->param_count + 1);
7947 /* Use a new signature without the first argument */
7948 sig = mono_metadata_signature_dup (sig);
7949 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7950 sig->param_count --;
7953 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7954 /* allocate local 3 to store the return value */
7955 mono_mb_add_local (mb, sig->ret);
7958 if (MONO_TYPE_ISSTRUCT (sig->ret))
7959 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7963 * mono_jit_attach ();
7967 * ret = method (...);
7969 * mono_jit_detach ();
7975 if (mono_threads_is_coop_enabled ()) {
7976 clause = g_new0 (MonoExceptionClause, 1);
7977 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7980 mono_mb_emit_icon (mb, 0);
7981 mono_mb_emit_stloc (mb, 2);
7983 if (mono_threads_is_coop_enabled ()) {
7985 clause->try_offset = mono_mb_get_label (mb);
7989 * Might need to attach the thread to the JIT or change the
7990 * domain for the callback.
7992 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7994 * mono_jit_attach ();
7996 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7997 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7999 /* <interrupt check> */
8000 emit_thread_interrupt_checkpoint (mb);
8002 /* we first do all conversions */
8003 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8004 for (i = 0; i < sig->param_count; i ++) {
8005 MonoType *t = sig->params [i];
8008 case MONO_TYPE_OBJECT:
8009 case MONO_TYPE_CLASS:
8010 case MONO_TYPE_VALUETYPE:
8011 case MONO_TYPE_ARRAY:
8012 case MONO_TYPE_SZARRAY:
8013 case MONO_TYPE_STRING:
8014 case MONO_TYPE_BOOLEAN:
8015 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8025 if (target_handle) {
8026 mono_mb_emit_icon (mb, (gint32)target_handle);
8027 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8030 g_assert_not_reached ();
8032 } else if (closed) {
8033 mono_mb_emit_icon (mb, (gint32)target_handle);
8034 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8037 for (i = 0; i < sig->param_count; i++) {
8038 MonoType *t = sig->params [i];
8040 if (tmp_locals [i]) {
8042 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8044 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8047 mono_mb_emit_ldarg (mb, i);
8050 /* ret = method (...) */
8051 mono_mb_emit_managed_call (mb, method, NULL);
8053 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8054 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8055 mono_class_init (klass);
8056 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8057 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8058 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8059 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8060 mono_mb_emit_stloc (mb, m->vtaddr_var);
8064 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8065 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8066 } else if (!sig->ret->byref) {
8067 switch (sig->ret->type) {
8068 case MONO_TYPE_VOID:
8070 case MONO_TYPE_BOOLEAN:
8073 case MONO_TYPE_CHAR:
8085 case MONO_TYPE_OBJECT:
8086 mono_mb_emit_stloc (mb, 3);
8088 case MONO_TYPE_STRING:
8089 csig->ret = &mono_defaults.int_class->byval_arg;
8090 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8092 case MONO_TYPE_VALUETYPE:
8093 case MONO_TYPE_CLASS:
8094 case MONO_TYPE_SZARRAY:
8095 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8098 g_warning ("return type 0x%02x unknown", sig->ret->type);
8099 g_assert_not_reached ();
8102 mono_mb_emit_stloc (mb, 3);
8105 /* Convert byref arguments back */
8106 for (i = 0; i < sig->param_count; i ++) {
8107 MonoType *t = sig->params [i];
8108 MonoMarshalSpec *spec = mspecs [i + 1];
8110 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8111 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8113 else if (t->byref) {
8115 case MONO_TYPE_CLASS:
8116 case MONO_TYPE_VALUETYPE:
8117 case MONO_TYPE_OBJECT:
8118 case MONO_TYPE_STRING:
8119 case MONO_TYPE_BOOLEAN:
8120 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8126 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8127 /* The [Out] information is encoded in the delegate signature */
8129 case MONO_TYPE_SZARRAY:
8130 case MONO_TYPE_CLASS:
8131 case MONO_TYPE_VALUETYPE:
8132 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8135 g_assert_not_reached ();
8140 if (mono_threads_is_coop_enabled ()) {
8141 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8144 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8145 clause->handler_offset = mono_mb_get_label (mb);
8149 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8151 * mono_jit_detach ();
8153 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8154 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8156 if (mono_threads_is_coop_enabled ()) {
8157 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8159 /* } [endfinally] */
8160 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8162 mono_mb_patch_branch (mb, leave_pos);
8166 if (m->retobj_var) {
8167 mono_mb_emit_ldloc (mb, m->retobj_var);
8168 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8169 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8172 if (!MONO_TYPE_IS_VOID(sig->ret))
8173 mono_mb_emit_ldloc (mb, 3);
8174 mono_mb_emit_byte (mb, CEE_RET);
8177 if (mono_threads_is_coop_enabled ()) {
8178 mono_mb_set_clauses (mb, 1, clause);
8187 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8189 MonoMethodSignature *sig;
8194 * Under windows, delegates passed to native code must use the STDCALL
8195 * calling convention.
8197 csig->call_convention = MONO_CALL_STDCALL;
8200 sig = mono_method_signature (method);
8202 /* Change default calling convention if needed */
8203 /* Why is this a modopt ? */
8204 if (sig->ret && sig->ret->num_mods) {
8205 for (i = 0; i < sig->ret->num_mods; ++i) {
8207 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8208 g_assert (mono_error_ok (&error));
8209 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8210 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8211 csig->call_convention = MONO_CALL_C;
8212 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8213 csig->call_convention = MONO_CALL_STDCALL;
8214 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8215 csig->call_convention = MONO_CALL_FASTCALL;
8216 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8217 csig->call_convention = MONO_CALL_THISCALL;
8224 * generates IL code to call managed methods from unmanaged code
8225 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8228 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8231 MonoMethodSignature *sig, *csig, *invoke_sig;
8232 MonoMethodBuilder *mb;
8233 MonoMethod *res, *invoke;
8234 MonoMarshalSpec **mspecs;
8235 MonoMethodPInvoke piinfo;
8238 EmitMarshalContext m;
8240 g_assert (method != NULL);
8241 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8244 * FIXME: Should cache the method+delegate type pair, since the same method
8245 * could be called with different delegates, thus different marshalling
8248 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8250 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8253 invoke = mono_get_delegate_invoke (delegate_klass);
8254 invoke_sig = mono_method_signature (invoke);
8256 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8257 mono_method_get_marshal_info (invoke, mspecs);
8259 sig = mono_method_signature (method);
8261 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8263 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8264 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8266 /* we copy the signature, so that we can modify it */
8268 /* Need to free this later */
8269 csig = mono_metadata_signature_dup (invoke_sig);
8271 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8275 memset (&m, 0, sizeof (m));
8281 m.image = method->klass->image;
8283 mono_marshal_set_callconv_from_modopt (invoke, csig);
8285 /* The attribute is only available in Net 2.0 */
8286 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8287 MonoCustomAttrInfo *cinfo;
8288 MonoCustomAttrEntry *attr;
8291 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8292 * contents of the attribute without constructing it, as that might not be
8293 * possible when running in cross-compiling mode.
8295 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8296 mono_error_assert_ok (&error);
8299 for (i = 0; i < cinfo->num_attrs; ++i) {
8300 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8301 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8302 attr = &cinfo->attrs [i];
8308 MonoArray *typed_args, *named_args;
8309 CattrNamedArg *arginfo;
8313 MonoBoolean set_last_error = 0;
8316 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8317 g_assert (mono_error_ok (&error));
8318 g_assert (mono_array_length (typed_args) == 1);
8321 o = mono_array_get (typed_args, MonoObject*, 0);
8322 call_conv = *(gint32*)mono_object_unbox (o);
8325 for (i = 0; i < mono_array_length (named_args); ++i) {
8326 CattrNamedArg *narg = &arginfo [i];
8328 o = mono_array_get (named_args, MonoObject*, i);
8330 g_assert (narg->field);
8331 if (!strcmp (narg->field->name, "CharSet")) {
8332 charset = *(gint32*)mono_object_unbox (o);
8333 } else if (!strcmp (narg->field->name, "SetLastError")) {
8334 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8335 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8336 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8337 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8338 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8340 g_assert_not_reached ();
8346 memset (&piinfo, 0, sizeof (piinfo));
8348 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8350 csig->call_convention = call_conv - 1;
8353 if (cinfo && !cinfo->cached)
8354 mono_custom_attrs_free (cinfo);
8357 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8359 if (!target_handle) {
8362 // FIXME: Associate it with the method+delegate_klass pair
8363 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8364 info->d.native_to_managed.method = method;
8365 info->d.native_to_managed.klass = delegate_klass;
8367 res = mono_mb_create_and_cache_full (cache, method,
8368 mb, csig, sig->param_count + 16,
8374 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8378 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8380 mono_metadata_free_marshal_spec (mspecs [i]);
8383 /* mono_method_print_code (res); */
8389 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8393 MonoMethodSignature *sig;
8394 MonoMethodBuilder *mb;
8399 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8401 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8404 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8405 MonoMethodSignature *csig;
8406 MonoMarshalSpec **mspecs;
8407 EmitMarshalContext m;
8409 sig = mono_method_signature (method);
8410 g_assert (!sig->hasthis);
8412 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8413 mono_method_get_marshal_info (method, mspecs);
8415 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8416 csig = mono_metadata_signature_dup_full (image, sig);
8420 memset (&m, 0, sizeof (m));
8428 mono_marshal_set_callconv_from_modopt (method, csig);
8430 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8432 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8437 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8440 for (i = sig->param_count; i >= 0; i--)
8442 mono_metadata_free_marshal_spec (mspecs [i]);
8445 return mono_compile_method (method);
8448 sig = mono_method_signature (method);
8449 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8451 param_count = sig->param_count + sig->hasthis;
8453 for (i = 0; i < param_count; i++)
8454 mono_mb_emit_ldarg (mb, i);
8456 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8457 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8459 mono_mb_emit_op (mb, CEE_CALL, method);
8460 mono_mb_emit_byte (mb, CEE_RET);
8465 method = mono_mb_create (mb, sig, param_count, NULL);
8468 return mono_compile_method (method);
8474 * The code directly following this is the cache hit, value positive branch
8476 * This function takes a new method builder with 0 locals and adds two locals
8477 * to create multiple out-branches and the fall through state of having the object
8478 * on the stack after a cache miss
8481 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8482 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8483 MonoMethodBuilder *mb)
8487 /* allocate local 0 (pointer) obj_vtable */
8488 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8489 /* allocate local 1 (pointer) cached_vtable */
8490 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8493 mono_mb_emit_ldarg (mb, obj_arg_position);
8494 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8496 /*obj_vtable = obj->vtable;*/
8497 mono_mb_emit_ldarg (mb, obj_arg_position);
8498 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8499 mono_mb_emit_byte (mb, CEE_LDIND_I);
8500 mono_mb_emit_stloc (mb, 0);
8502 /* cached_vtable = *cache*/
8503 mono_mb_emit_ldarg (mb, cache_arg_position);
8504 mono_mb_emit_byte (mb, CEE_LDIND_I);
8505 mono_mb_emit_stloc (mb, 1);
8507 mono_mb_emit_ldloc (mb, 1);
8508 mono_mb_emit_byte (mb, CEE_LDC_I4);
8509 mono_mb_emit_i4 (mb, ~0x1);
8510 mono_mb_emit_byte (mb, CEE_CONV_I);
8511 mono_mb_emit_byte (mb, CEE_AND);
8512 mono_mb_emit_ldloc (mb, 0);
8513 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8514 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8516 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8517 mono_mb_emit_ldloc (mb, 1);
8518 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8519 mono_mb_emit_byte (mb, CEE_CONV_U);
8520 mono_mb_emit_byte (mb, CEE_AND);
8521 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8522 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8525 mono_mb_patch_branch (mb, cache_miss_pos);
8528 mono_mb_emit_ldarg (mb, obj_arg_position);
8529 mono_mb_emit_ldarg (mb, class_arg_position);
8530 mono_mb_emit_ldarg (mb, cache_arg_position);
8531 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8534 #endif /* DISABLE_JIT */
8537 * This does the equivalent of mono_object_castclass_with_cache.
8538 * The wrapper info for the wrapper is a WrapperInfo structure.
8541 mono_marshal_get_castclass_with_cache (void)
8543 static MonoMethod *cached;
8545 MonoMethodBuilder *mb;
8546 MonoMethodSignature *sig;
8547 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8550 const int obj_arg_position = 0;
8551 const int class_arg_position = 1;
8552 const int cache_arg_position = 2;
8557 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8558 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8559 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8560 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8561 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8562 sig->ret = &mono_defaults.object_class->byval_arg;
8566 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8567 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8568 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8571 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8572 mono_mb_emit_ldarg (mb, obj_arg_position);
8573 mono_mb_emit_byte (mb, CEE_RET);
8576 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8577 mono_mb_patch_branch (mb, invalid_cast_pos);
8578 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8581 mono_mb_patch_branch (mb, return_null_pos);
8582 mono_mb_emit_byte (mb, CEE_LDNULL);
8583 mono_mb_emit_byte (mb, CEE_RET);
8584 #endif /* DISABLE_JIT */
8586 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8587 res = mono_mb_create (mb, sig, 8, info);
8590 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8591 mono_free_method (res);
8592 mono_metadata_free_method_signature (sig);
8600 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8603 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8604 mono_error_raise_exception (&error); /* FIXME don't raise here */
8606 #ifndef DISABLE_REMOTING
8607 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8611 uintptr_t cache_update = (uintptr_t)obj->vtable;
8613 cache_update = cache_update | 0x1;
8615 *cache = cache_update;
8621 * This does the equivalent of mono_object_isinst_with_cache.
8622 * The wrapper info for the wrapper is a WrapperInfo structure.
8625 mono_marshal_get_isinst_with_cache (void)
8627 static MonoMethod *cached;
8629 MonoMethodBuilder *mb;
8630 MonoMethodSignature *sig;
8631 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8634 const int obj_arg_position = 0;
8635 const int class_arg_position = 1;
8636 const int cache_arg_position = 2;
8641 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8642 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8644 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8646 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8648 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8649 sig->ret = &mono_defaults.object_class->byval_arg;
8653 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8654 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8655 // Return the object gotten via the slow path.
8656 mono_mb_emit_byte (mb, CEE_RET);
8659 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8660 mono_mb_patch_branch (mb, return_null_pos);
8661 mono_mb_emit_byte (mb, CEE_LDNULL);
8662 mono_mb_emit_byte (mb, CEE_RET);
8665 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8666 mono_mb_emit_ldarg (mb, 0);
8667 mono_mb_emit_byte (mb, CEE_RET);
8670 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8671 res = mono_mb_create (mb, sig, 8, info);
8674 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8675 mono_free_method (res);
8676 mono_metadata_free_method_signature (sig);
8684 * mono_marshal_get_isinst:
8685 * @klass: the type of the field
8687 * This method generates a function which can be used to check if an object is
8688 * an instance of the given type, icluding the case where the object is a proxy.
8689 * The generated function has the following signature:
8690 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8693 mono_marshal_get_isinst (MonoClass *klass)
8695 static MonoMethodSignature *isint_sig = NULL;
8699 int pos_was_ok, pos_end;
8700 #ifndef DISABLE_REMOTING
8701 int pos_end2, pos_failed;
8704 MonoMethodBuilder *mb;
8706 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8707 if ((res = mono_marshal_find_in_cache (cache, klass)))
8711 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8712 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8713 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8714 isint_sig->pinvoke = 0;
8717 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8718 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8721 mb->method->save_lmf = 1;
8724 /* check if the object is a proxy that needs special cast */
8725 mono_mb_emit_ldarg (mb, 0);
8726 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8727 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8729 /* The result of MONO_CISINST can be:
8730 0) the type check succeeded
8731 1) the type check did not succeed
8732 2) a CanCastTo call is needed */
8733 #ifndef DISABLE_REMOTING
8734 mono_mb_emit_byte (mb, CEE_DUP);
8735 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8737 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8738 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8740 /* get the real proxy from the transparent proxy*/
8742 mono_mb_emit_ldarg (mb, 0);
8743 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8744 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8748 mono_mb_patch_branch (mb, pos_failed);
8749 mono_mb_emit_byte (mb, CEE_LDNULL);
8750 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8754 mono_mb_patch_branch (mb, pos_was_ok);
8755 mono_mb_emit_byte (mb, CEE_POP);
8756 mono_mb_emit_ldarg (mb, 0);
8760 mono_mb_patch_branch (mb, pos_end);
8761 mono_mb_patch_branch (mb, pos_end2);
8762 mono_mb_emit_byte (mb, CEE_RET);
8764 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8768 mono_mb_emit_byte (mb, CEE_LDNULL);
8769 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8773 mono_mb_patch_branch (mb, pos_was_ok);
8774 mono_mb_emit_ldarg (mb, 0);
8778 mono_mb_patch_branch (mb, pos_end);
8779 mono_mb_emit_byte (mb, CEE_RET);
8780 #endif /* DISABLE_REMOTING */
8781 #endif /* DISABLE_JIT */
8783 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8784 info->d.proxy.klass = klass;
8785 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8792 * mono_marshal_get_castclass:
8793 * @klass: the type of the field
8795 * This method generates a function which can be used to cast an object to
8796 * an instance of the given type, icluding the case where the object is a proxy.
8797 * The generated function has the following signature:
8798 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8799 * The wrapper info for the wrapper is a WrapperInfo structure.
8802 mono_marshal_get_castclass (MonoClass *klass)
8804 static MonoMethodSignature *castclass_sig = NULL;
8807 #ifndef DISABLE_REMOTING
8808 int pos_was_ok, pos_was_ok2;
8811 MonoMethodBuilder *mb;
8814 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8815 if ((res = mono_marshal_find_in_cache (cache, klass)))
8818 if (!castclass_sig) {
8819 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8820 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8821 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8822 castclass_sig->pinvoke = 0;
8825 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8826 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8829 mb->method->save_lmf = 1;
8832 /* check if the object is a proxy that needs special cast */
8833 mono_mb_emit_ldarg (mb, 0);
8834 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8835 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8837 /* The result of MONO_CCASTCLASS can be:
8838 0) the cast is valid
8839 1) cast of unknown proxy type
8840 or an exception if the cast is is invalid
8842 #ifndef DISABLE_REMOTING
8843 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8845 /* get the real proxy from the transparent proxy*/
8847 mono_mb_emit_ldarg (mb, 0);
8848 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8849 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8852 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8855 mono_mb_patch_branch (mb, pos_was_ok);
8856 mono_mb_patch_branch (mb, pos_was_ok2);
8858 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8859 mono_mb_emit_byte (mb, CEE_POP);
8860 #endif /* DISABLE_REMOTING */
8862 mono_mb_emit_ldarg (mb, 0);
8865 mono_mb_emit_byte (mb, CEE_RET);
8866 #endif /* DISABLE_JIT */
8868 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8870 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8878 * mono_marshal_get_struct_to_ptr:
8881 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8882 * The wrapper info for the wrapper is a WrapperInfo structure.
8885 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8887 MonoMethodBuilder *mb;
8888 static MonoMethod *stoptr = NULL;
8892 g_assert (klass != NULL);
8894 mono_marshal_load_type_info (klass);
8896 if (klass->marshal_info->str_to_ptr)
8897 return klass->marshal_info->str_to_ptr;
8900 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8903 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8906 if (klass->blittable) {
8907 mono_mb_emit_byte (mb, CEE_LDARG_1);
8908 mono_mb_emit_byte (mb, CEE_LDARG_0);
8909 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8910 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8911 mono_mb_emit_byte (mb, CEE_PREFIX1);
8912 mono_mb_emit_byte (mb, CEE_CPBLK);
8915 /* allocate local 0 (pointer) src_ptr */
8916 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8917 /* allocate local 1 (pointer) dst_ptr */
8918 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8919 /* allocate local 2 (boolean) delete_old */
8920 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8921 mono_mb_emit_byte (mb, CEE_LDARG_2);
8922 mono_mb_emit_stloc (mb, 2);
8924 /* initialize src_ptr to point to the start of object data */
8925 mono_mb_emit_byte (mb, CEE_LDARG_0);
8926 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8927 mono_mb_emit_stloc (mb, 0);
8929 /* initialize dst_ptr */
8930 mono_mb_emit_byte (mb, CEE_LDARG_1);
8931 mono_mb_emit_stloc (mb, 1);
8933 emit_struct_conv (mb, klass, FALSE);
8936 mono_mb_emit_byte (mb, CEE_RET);
8938 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8939 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8942 mono_marshal_lock ();
8943 if (!klass->marshal_info->str_to_ptr)
8944 klass->marshal_info->str_to_ptr = res;
8946 res = klass->marshal_info->str_to_ptr;
8947 mono_marshal_unlock ();
8952 * mono_marshal_get_ptr_to_struct:
8955 * generates IL code for PtrToStructure (IntPtr src, object structure)
8956 * The wrapper info for the wrapper is a WrapperInfo structure.
8959 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8961 MonoMethodBuilder *mb;
8962 static MonoMethodSignature *ptostr = NULL;
8966 g_assert (klass != NULL);
8968 mono_marshal_load_type_info (klass);
8970 if (klass->marshal_info->ptr_to_str)
8971 return klass->marshal_info->ptr_to_str;
8974 MonoMethodSignature *sig;
8976 /* Create the signature corresponding to
8977 static void PtrToStructure (IntPtr ptr, object structure);
8978 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8979 sig = mono_create_icall_signature ("void ptr object");
8980 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8982 mono_memory_barrier ();
8986 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8989 if (klass->blittable) {
8990 mono_mb_emit_byte (mb, CEE_LDARG_1);
8991 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8992 mono_mb_emit_byte (mb, CEE_LDARG_0);
8993 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8994 mono_mb_emit_byte (mb, CEE_PREFIX1);
8995 mono_mb_emit_byte (mb, CEE_CPBLK);
8998 /* allocate local 0 (pointer) src_ptr */
8999 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9000 /* allocate local 1 (pointer) dst_ptr */
9001 mono_mb_add_local (mb, &klass->this_arg);
9003 /* initialize src_ptr to point to the start of object data */
9004 mono_mb_emit_byte (mb, CEE_LDARG_0);
9005 mono_mb_emit_stloc (mb, 0);
9007 /* initialize dst_ptr */
9008 mono_mb_emit_byte (mb, CEE_LDARG_1);
9009 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9010 mono_mb_emit_stloc (mb, 1);
9012 emit_struct_conv (mb, klass, TRUE);
9015 mono_mb_emit_byte (mb, CEE_RET);
9017 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9018 res = mono_mb_create (mb, ptostr, 0, info);
9021 mono_marshal_lock ();
9022 if (!klass->marshal_info->ptr_to_str)
9023 klass->marshal_info->ptr_to_str = res;
9025 res = klass->marshal_info->ptr_to_str;
9026 mono_marshal_unlock ();
9031 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9032 * This is used to avoid infinite recursion since it is hard to determine where to
9033 * replace a method with its synchronized wrapper, and where not.
9034 * The runtime should execute METHOD instead of the wrapper.
9035 * The wrapper info for the wrapper is a WrapperInfo structure.
9038 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9040 MonoMethodBuilder *mb;
9042 MonoMethodSignature *sig;
9044 MonoGenericContext *ctx = NULL;
9045 MonoGenericContainer *container = NULL;
9047 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9048 ctx = &((MonoMethodInflated*)method)->context;
9049 method = ((MonoMethodInflated*)method)->declaring;
9050 container = mono_method_get_generic_container (method);
9052 container = method->klass->generic_container;
9053 g_assert (container);
9056 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9058 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9059 mono_mb_emit_byte (mb, CEE_RET);
9061 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9063 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9064 info->d.synchronized_inner.method = method;
9065 res = mono_mb_create (mb, sig, 0, info);
9069 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9070 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9076 * generates IL code for the synchronized wrapper: the generated method
9077 * calls METHOD while locking 'this' or the parent type.
9080 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9082 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9083 MonoMethodSignature *sig;
9084 MonoExceptionClause *clause;
9085 MonoMethodBuilder *mb;
9089 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9090 MonoGenericContext *ctx = NULL;
9091 MonoMethod *orig_method = NULL;
9092 MonoGenericContainer *container = NULL;
9096 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9099 /* FIXME: Support generic methods too */
9100 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9101 orig_method = method;
9102 ctx = &((MonoMethodInflated*)method)->context;
9103 method = ((MonoMethodInflated*)method)->declaring;
9104 container = mono_method_get_generic_container (method);
9106 container = method->klass->generic_container;
9107 g_assert (container);
9114 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9115 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9119 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9120 if ((res = mono_marshal_find_in_cache (cache, method)))
9124 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9127 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9129 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9130 info->d.synchronized.method = method;
9133 mb->skip_visibility = 1;
9135 if (!MONO_TYPE_IS_VOID (sig->ret))
9136 ret_local = mono_mb_add_local (mb, sig->ret);
9139 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9140 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9142 /* This will throw the type load exception when the wrapper is compiled */
9143 mono_mb_emit_byte (mb, CEE_LDNULL);
9144 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9145 mono_mb_emit_byte (mb, CEE_POP);
9147 if (!MONO_TYPE_IS_VOID (sig->ret))
9148 mono_mb_emit_ldloc (mb, ret_local);
9149 mono_mb_emit_byte (mb, CEE_RET);
9152 res = mono_mb_create_and_cache_full (cache, method,
9153 mb, sig, sig->param_count + 16, info, NULL);
9161 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9162 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9164 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9165 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9168 mono_marshal_lock ();
9170 if (!enter_method) {
9171 MonoMethodDesc *desc;
9173 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9174 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9175 g_assert (enter_method);
9176 mono_method_desc_free (desc);
9178 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9179 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9180 g_assert (exit_method);
9181 mono_method_desc_free (desc);
9183 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9184 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9185 g_assert (gettypefromhandle_method);
9186 mono_method_desc_free (desc);
9189 mono_marshal_unlock ();
9192 /* Push this or the type object */
9193 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9194 /* We have special handling for this in the JIT */
9195 int index = mono_mb_add_data (mb, method->klass);
9196 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9197 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9198 mono_mb_emit_i4 (mb, index);
9200 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9203 mono_mb_emit_ldarg (mb, 0);
9204 mono_mb_emit_stloc (mb, this_local);
9206 /* Call Monitor::Enter() */
9207 mono_mb_emit_ldloc (mb, this_local);
9208 mono_mb_emit_ldloc_addr (mb, taken_local);
9209 mono_mb_emit_managed_call (mb, enter_method, NULL);
9211 clause->try_offset = mono_mb_get_label (mb);
9213 /* Call the method */
9215 mono_mb_emit_ldarg (mb, 0);
9216 for (i = 0; i < sig->param_count; i++)
9217 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9221 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9222 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9224 mono_mb_emit_managed_call (mb, method, NULL);
9227 if (!MONO_TYPE_IS_VOID (sig->ret))
9228 mono_mb_emit_stloc (mb, ret_local);
9230 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9232 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9233 clause->handler_offset = mono_mb_get_label (mb);
9235 /* Call Monitor::Exit() if needed */
9236 mono_mb_emit_ldloc (mb, taken_local);
9237 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9238 mono_mb_emit_ldloc (mb, this_local);
9239 mono_mb_emit_managed_call (mb, exit_method, NULL);
9240 mono_mb_patch_branch (mb, pos2);
9241 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9243 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9245 mono_mb_patch_branch (mb, pos);
9246 if (!MONO_TYPE_IS_VOID (sig->ret))
9247 mono_mb_emit_ldloc (mb, ret_local);
9248 mono_mb_emit_byte (mb, CEE_RET);
9250 mono_mb_set_clauses (mb, 1, clause);
9255 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9256 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9258 res = mono_mb_create_and_cache_full (cache, method,
9259 mb, sig, sig->param_count + 16, info, NULL);
9268 * the returned method calls 'method' unboxing the this argument
9271 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9273 MonoMethodSignature *sig = mono_method_signature (method);
9275 MonoMethodBuilder *mb;
9280 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9282 if ((res = mono_marshal_find_in_cache (cache, method)))
9285 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9287 g_assert (sig->hasthis);
9290 mono_mb_emit_ldarg (mb, 0);
9291 mono_mb_emit_icon (mb, sizeof (MonoObject));
9292 mono_mb_emit_byte (mb, CEE_ADD);
9293 for (i = 0; i < sig->param_count; ++i)
9294 mono_mb_emit_ldarg (mb, i + 1);
9295 mono_mb_emit_managed_call (mb, method, NULL);
9296 mono_mb_emit_byte (mb, CEE_RET);
9299 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9300 info->d.unbox.method = method;
9302 res = mono_mb_create_and_cache_full (cache, method,
9303 mb, sig, sig->param_count + 16, info, NULL);
9306 /* mono_method_print_code (res); */
9312 STELEMREF_OBJECT, /*no check at all*/
9313 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9314 STELEMREF_CLASS, /*only the klass->parents check*/
9315 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9316 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9317 STELEMREF_KIND_COUNT
9320 static const char *strelemref_wrapper_name[] = {
9321 "object", "sealed_class", "class", "interface", "complex"
9325 is_monomorphic_array (MonoClass *klass)
9327 MonoClass *element_class;
9328 if (klass->rank != 1)
9331 element_class = klass->element_class;
9332 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9336 get_virtual_stelemref_kind (MonoClass *element_class)
9338 if (element_class == mono_defaults.object_class)
9339 return STELEMREF_OBJECT;
9340 if (is_monomorphic_array (element_class))
9341 return STELEMREF_SEALED_CLASS;
9342 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9343 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9344 #ifdef COMPRESSED_INTERFACE_BITMAP
9345 return STELEMREF_COMPLEX;
9347 return STELEMREF_INTERFACE;
9349 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9350 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9351 return STELEMREF_COMPLEX;
9352 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9353 return STELEMREF_SEALED_CLASS;
9354 return STELEMREF_CLASS;
9360 load_array_element_address (MonoMethodBuilder *mb)
9362 mono_mb_emit_ldarg (mb, 0);
9363 mono_mb_emit_ldarg (mb, 1);
9364 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9368 load_array_class (MonoMethodBuilder *mb, int aklass)
9370 mono_mb_emit_ldarg (mb, 0);
9371 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9372 mono_mb_emit_byte (mb, CEE_LDIND_I);
9373 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9374 mono_mb_emit_byte (mb, CEE_LDIND_I);
9375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9376 mono_mb_emit_byte (mb, CEE_LDIND_I);
9377 mono_mb_emit_stloc (mb, aklass);
9381 load_value_class (MonoMethodBuilder *mb, int vklass)
9383 mono_mb_emit_ldarg (mb, 2);
9384 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9385 mono_mb_emit_byte (mb, CEE_LDIND_I);
9386 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9387 mono_mb_emit_byte (mb, CEE_LDIND_I);
9388 mono_mb_emit_stloc (mb, vklass);
9394 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9396 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9397 printf ("slow vstore of %s\n", name);
9403 * The wrapper info for the wrapper is a WrapperInfo structure.
9406 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9407 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9408 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9409 * - Add a case for arrays of arrays.
9412 get_virtual_stelemref_wrapper (int kind)
9414 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9415 static MonoMethodSignature *signature;
9416 MonoMethodBuilder *mb;
9419 const char *param_names [16];
9421 int aklass, vklass, vtable, uiid;
9422 int array_slot_addr;
9425 if (cached_methods [kind])
9426 return cached_methods [kind];
9428 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9429 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9433 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9435 /* void this::stelemref (size_t idx, void* value) */
9436 sig->ret = &mono_defaults.void_class->byval_arg;
9437 sig->hasthis = TRUE;
9438 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9439 sig->params [1] = &mono_defaults.object_class->byval_arg;
9444 param_names [0] = "index";
9445 param_names [1] = "value";
9446 mono_mb_set_param_names (mb, param_names);
9448 /*For now simply call plain old stelemref*/
9450 case STELEMREF_OBJECT:
9451 /* ldelema (implicit bound check) */
9452 load_array_element_address (mb);
9454 mono_mb_emit_ldarg (mb, 2);
9455 mono_mb_emit_byte (mb, CEE_STIND_REF);
9456 mono_mb_emit_byte (mb, CEE_RET);
9459 case STELEMREF_COMPLEX:
9461 <ldelema (bound check)>
9464 if (!mono_object_isinst (value, aklass))
9468 *array_slot_addr = value;
9471 throw new ArrayTypeMismatchException ();
9474 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9475 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9479 /*Use this to debug/record stores that are going thru the slow path*/
9480 MonoMethodSignature *csig;
9481 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9482 csig->ret = &mono_defaults.void_class->byval_arg;
9483 csig->params [0] = &mono_defaults.object_class->byval_arg;
9484 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9485 csig->params [2] = &mono_defaults.object_class->byval_arg;
9486 mono_mb_emit_ldarg (mb, 0);
9487 mono_mb_emit_ldarg (mb, 1);
9488 mono_mb_emit_ldarg (mb, 2);
9489 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9493 /* ldelema (implicit bound check) */
9494 load_array_element_address (mb);
9495 mono_mb_emit_stloc (mb, array_slot_addr);
9497 /* if (!value) goto do_store */
9498 mono_mb_emit_ldarg (mb, 2);
9499 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9501 /* aklass = array->vtable->klass->element_class */
9502 load_array_class (mb, aklass);
9504 /*if (mono_object_isinst (value, aklass)) */
9505 mono_mb_emit_ldarg (mb, 2);
9506 mono_mb_emit_ldloc (mb, aklass);
9507 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9508 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9511 mono_mb_patch_branch (mb, b1);
9512 mono_mb_emit_ldloc (mb, array_slot_addr);
9513 mono_mb_emit_ldarg (mb, 2);
9514 mono_mb_emit_byte (mb, CEE_STIND_REF);
9515 mono_mb_emit_byte (mb, CEE_RET);
9518 mono_mb_patch_branch (mb, b2);
9520 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9523 case STELEMREF_SEALED_CLASS:
9525 <ldelema (bound check)>
9529 aklass = array->vtable->klass->element_class;
9530 vklass = value->vtable->klass;
9532 if (vklass != aklass)
9536 *array_slot_addr = value;
9539 throw new ArrayTypeMismatchException ();
9541 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9542 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9543 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9546 /* ldelema (implicit bound check) */
9547 load_array_element_address (mb);
9548 mono_mb_emit_stloc (mb, array_slot_addr);
9550 /* if (!value) goto do_store */
9551 mono_mb_emit_ldarg (mb, 2);
9552 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9554 /* aklass = array->vtable->klass->element_class */
9555 load_array_class (mb, aklass);
9557 /* vklass = value->vtable->klass */
9558 load_value_class (mb, vklass);
9560 /*if (vklass != aklass) goto do_exception; */
9561 mono_mb_emit_ldloc (mb, aklass);
9562 mono_mb_emit_ldloc (mb, vklass);
9563 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9566 mono_mb_patch_branch (mb, b1);
9567 mono_mb_emit_ldloc (mb, array_slot_addr);
9568 mono_mb_emit_ldarg (mb, 2);
9569 mono_mb_emit_byte (mb, CEE_STIND_REF);
9570 mono_mb_emit_byte (mb, CEE_RET);
9573 mono_mb_patch_branch (mb, b2);
9574 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9577 case STELEMREF_CLASS:
9580 <ldelema (bound check)>
9584 aklass = array->vtable->klass->element_class;
9585 vklass = value->vtable->klass;
9587 if (vklass->idepth < aklass->idepth)
9590 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9594 *array_slot_addr = value;
9598 throw new ArrayTypeMismatchException ();
9600 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9601 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9602 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9604 /* ldelema (implicit bound check) */
9605 load_array_element_address (mb);
9606 mono_mb_emit_stloc (mb, array_slot_addr);
9608 /* if (!value) goto do_store */
9609 mono_mb_emit_ldarg (mb, 2);
9610 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9612 /* aklass = array->vtable->klass->element_class */
9613 load_array_class (mb, aklass);
9615 /* vklass = value->vtable->klass */
9616 load_value_class (mb, vklass);
9618 /*if (mono_object_isinst (value, aklass)) */
9619 mono_mb_emit_ldarg (mb, 2);
9620 mono_mb_emit_ldloc (mb, aklass);
9621 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9622 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9624 /* if (vklass->idepth < aklass->idepth) goto failue */
9625 mono_mb_emit_ldloc (mb, vklass);
9626 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9627 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9629 mono_mb_emit_ldloc (mb, aklass);
9630 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9631 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9633 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9635 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9636 mono_mb_emit_ldloc (mb, vklass);
9637 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9638 mono_mb_emit_byte (mb, CEE_LDIND_I);
9640 mono_mb_emit_ldloc (mb, aklass);
9641 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9642 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9643 mono_mb_emit_icon (mb, 1);
9644 mono_mb_emit_byte (mb, CEE_SUB);
9645 mono_mb_emit_icon (mb, sizeof (void*));
9646 mono_mb_emit_byte (mb, CEE_MUL);
9647 mono_mb_emit_byte (mb, CEE_ADD);
9648 mono_mb_emit_byte (mb, CEE_LDIND_I);
9650 mono_mb_emit_ldloc (mb, aklass);
9651 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9654 mono_mb_patch_branch (mb, b1);
9655 mono_mb_emit_ldloc (mb, array_slot_addr);
9656 mono_mb_emit_ldarg (mb, 2);
9657 mono_mb_emit_byte (mb, CEE_STIND_REF);
9658 mono_mb_emit_byte (mb, CEE_RET);
9661 mono_mb_patch_branch (mb, b2);
9662 mono_mb_patch_branch (mb, b3);
9664 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9667 case STELEMREF_INTERFACE:
9674 klass = array->obj.vtable->klass->element_class;
9676 uiid = klass->interface_id;
9677 if (uiid > vt->max_interface_id)
9679 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9682 mono_array_setref (array, index, value);
9685 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9687 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9688 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9689 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9690 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9692 /* ldelema (implicit bound check) */
9693 load_array_element_address (mb);
9694 mono_mb_emit_stloc (mb, array_slot_addr);
9696 /* if (!value) goto do_store */
9697 mono_mb_emit_ldarg (mb, 2);
9698 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9700 /* klass = array->vtable->klass->element_class */
9701 load_array_class (mb, aklass);
9703 /* vt = value->vtable */
9704 mono_mb_emit_ldarg (mb, 2);
9705 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9706 mono_mb_emit_byte (mb, CEE_LDIND_I);
9707 mono_mb_emit_stloc (mb, vtable);
9709 /* uiid = klass->interface_id; */
9710 mono_mb_emit_ldloc (mb, aklass);
9711 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9712 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9713 mono_mb_emit_stloc (mb, uiid);
9715 /*if (uiid > vt->max_interface_id)*/
9716 mono_mb_emit_ldloc (mb, uiid);
9717 mono_mb_emit_ldloc (mb, vtable);
9718 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9719 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9720 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9722 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9724 /*vt->interface_bitmap*/
9725 mono_mb_emit_ldloc (mb, vtable);
9726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9727 mono_mb_emit_byte (mb, CEE_LDIND_I);
9730 mono_mb_emit_ldloc (mb, uiid);
9731 mono_mb_emit_icon (mb, 3);
9732 mono_mb_emit_byte (mb, CEE_SHR_UN);
9734 /*vt->interface_bitmap [(uiid) >> 3]*/
9735 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9736 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9738 /*(1 << ((uiid)&7)))*/
9739 mono_mb_emit_icon (mb, 1);
9740 mono_mb_emit_ldloc (mb, uiid);
9741 mono_mb_emit_icon (mb, 7);
9742 mono_mb_emit_byte (mb, CEE_AND);
9743 mono_mb_emit_byte (mb, CEE_SHL);
9745 /*bitwise and the whole thing*/
9746 mono_mb_emit_byte (mb, CEE_AND);
9747 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9750 mono_mb_patch_branch (mb, b1);
9751 mono_mb_emit_ldloc (mb, array_slot_addr);
9752 mono_mb_emit_ldarg (mb, 2);
9753 mono_mb_emit_byte (mb, CEE_STIND_REF);
9754 mono_mb_emit_byte (mb, CEE_RET);
9757 mono_mb_patch_branch (mb, b2);
9758 mono_mb_patch_branch (mb, b3);
9759 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9763 mono_mb_emit_ldarg (mb, 0);
9764 mono_mb_emit_ldarg (mb, 1);
9765 mono_mb_emit_ldarg (mb, 2);
9766 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9767 mono_mb_emit_byte (mb, CEE_RET);
9770 #endif /* DISABLE_JIT */
9771 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9772 info->d.virtual_stelemref.kind = kind;
9773 res = mono_mb_create (mb, signature, 4, info);
9774 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9776 mono_marshal_lock ();
9777 if (!cached_methods [kind]) {
9778 cached_methods [kind] = res;
9779 mono_marshal_unlock ();
9781 mono_marshal_unlock ();
9782 mono_free_method (res);
9786 return cached_methods [kind];
9790 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9794 g_assert (array_class->rank == 1);
9795 kind = get_virtual_stelemref_kind (array_class->element_class);
9797 return get_virtual_stelemref_wrapper (kind);
9801 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9806 *nwrappers = STELEMREF_KIND_COUNT;
9807 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9808 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9809 res [i] = get_virtual_stelemref_wrapper (i);
9814 * The wrapper info for the wrapper is a WrapperInfo structure.
9817 mono_marshal_get_stelemref (void)
9819 static MonoMethod* ret = NULL;
9820 MonoMethodSignature *sig;
9821 MonoMethodBuilder *mb;
9824 guint32 b1, b2, b3, b4;
9827 int array_slot_addr;
9832 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9835 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9837 /* void stelemref (void* array, int idx, void* value) */
9838 sig->ret = &mono_defaults.void_class->byval_arg;
9839 sig->params [0] = &mono_defaults.object_class->byval_arg;
9840 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9841 sig->params [2] = &mono_defaults.object_class->byval_arg;
9844 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9845 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9846 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9850 <ldelema (bound check)>
9854 aklass = array->vtable->klass->element_class;
9855 vklass = value->vtable->klass;
9857 if (vklass->idepth < aklass->idepth)
9860 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9864 *array_slot_addr = value;
9868 if (mono_object_isinst (value, aklass))
9871 throw new ArrayTypeMismatchException ();
9874 /* ldelema (implicit bound check) */
9875 mono_mb_emit_ldarg (mb, 0);
9876 mono_mb_emit_ldarg (mb, 1);
9877 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9878 mono_mb_emit_stloc (mb, array_slot_addr);
9880 /* if (!value) goto do_store */
9881 mono_mb_emit_ldarg (mb, 2);
9882 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9884 /* aklass = array->vtable->klass->element_class */
9885 mono_mb_emit_ldarg (mb, 0);
9886 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9887 mono_mb_emit_byte (mb, CEE_LDIND_I);
9888 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9889 mono_mb_emit_byte (mb, CEE_LDIND_I);
9890 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9891 mono_mb_emit_byte (mb, CEE_LDIND_I);
9892 mono_mb_emit_stloc (mb, aklass);
9894 /* vklass = value->vtable->klass */
9895 mono_mb_emit_ldarg (mb, 2);
9896 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9897 mono_mb_emit_byte (mb, CEE_LDIND_I);
9898 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9899 mono_mb_emit_byte (mb, CEE_LDIND_I);
9900 mono_mb_emit_stloc (mb, vklass);
9902 /* if (vklass->idepth < aklass->idepth) goto failue */
9903 mono_mb_emit_ldloc (mb, vklass);
9904 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9905 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9907 mono_mb_emit_ldloc (mb, aklass);
9908 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9909 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9911 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9913 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9914 mono_mb_emit_ldloc (mb, vklass);
9915 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9916 mono_mb_emit_byte (mb, CEE_LDIND_I);
9918 mono_mb_emit_ldloc (mb, aklass);
9919 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9920 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9921 mono_mb_emit_icon (mb, 1);
9922 mono_mb_emit_byte (mb, CEE_SUB);
9923 mono_mb_emit_icon (mb, sizeof (void*));
9924 mono_mb_emit_byte (mb, CEE_MUL);
9925 mono_mb_emit_byte (mb, CEE_ADD);
9926 mono_mb_emit_byte (mb, CEE_LDIND_I);
9928 mono_mb_emit_ldloc (mb, aklass);
9930 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9932 copy_pos = mono_mb_get_label (mb);
9934 mono_mb_patch_branch (mb, b1);
9935 mono_mb_emit_ldloc (mb, array_slot_addr);
9936 mono_mb_emit_ldarg (mb, 2);
9937 mono_mb_emit_byte (mb, CEE_STIND_REF);
9939 mono_mb_emit_byte (mb, CEE_RET);
9942 mono_mb_patch_branch (mb, b2);
9943 mono_mb_patch_branch (mb, b3);
9945 mono_mb_emit_ldarg (mb, 2);
9946 mono_mb_emit_ldloc (mb, aklass);
9947 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9949 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9950 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9951 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9953 mono_mb_emit_byte (mb, CEE_RET);
9955 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9956 ret = mono_mb_create (mb, sig, 4, info);
9963 * mono_marshal_get_gsharedvt_in_wrapper:
9965 * This wrapper handles calls from normal code to gsharedvt code.
9967 * The wrapper info for the wrapper is a WrapperInfo structure.
9970 mono_marshal_get_gsharedvt_in_wrapper (void)
9972 static MonoMethod* ret = NULL;
9973 MonoMethodSignature *sig;
9974 MonoMethodBuilder *mb;
9980 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9982 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9983 sig->ret = &mono_defaults.void_class->byval_arg;
9987 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9989 mono_mb_emit_byte (mb, CEE_RET);
9991 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9992 ret = mono_mb_create (mb, sig, 4, info);
9999 * mono_marshal_get_gsharedvt_out_wrapper:
10001 * This wrapper handles calls from gsharedvt code to normal code.
10003 * The wrapper info for the wrapper is a WrapperInfo structure.
10006 mono_marshal_get_gsharedvt_out_wrapper (void)
10008 static MonoMethod* ret = NULL;
10009 MonoMethodSignature *sig;
10010 MonoMethodBuilder *mb;
10016 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10018 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10019 sig->ret = &mono_defaults.void_class->byval_arg;
10021 #ifndef DISABLE_JIT
10023 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10025 mono_mb_emit_byte (mb, CEE_RET);
10027 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10028 ret = mono_mb_create (mb, sig, 4, info);
10037 MonoMethod *method;
10040 /* LOCKING: vars accessed under the marshal lock */
10041 static ArrayElemAddr *elem_addr_cache = NULL;
10042 static int elem_addr_cache_size = 0;
10043 static int elem_addr_cache_next = 0;
10046 * mono_marshal_get_array_address:
10047 * @rank: rank of the array type
10048 * @elem_size: size in bytes of an element of an array.
10050 * Returns a MonoMethod that implements the code to get the address
10051 * of an element in a multi-dimenasional array of @rank dimensions.
10052 * The returned method takes an array as the first argument and then
10053 * @rank indexes for the @rank dimensions.
10054 * If ELEM_SIZE is 0, read the array size from the array object.
10057 mono_marshal_get_array_address (int rank, int elem_size)
10060 MonoMethodBuilder *mb;
10061 MonoMethodSignature *sig;
10064 int i, bounds, ind, realidx;
10065 int branch_pos, *branch_positions;
10069 mono_marshal_lock ();
10070 for (i = 0; i < elem_addr_cache_next; ++i) {
10071 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10072 ret = elem_addr_cache [i].method;
10076 mono_marshal_unlock ();
10080 branch_positions = g_new0 (int, rank);
10082 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10084 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10085 sig->ret = &mono_defaults.int_class->byval_arg;
10086 sig->params [0] = &mono_defaults.object_class->byval_arg;
10087 for (i = 0; i < rank; ++i) {
10088 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10091 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10092 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10095 #ifndef DISABLE_JIT
10096 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10097 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10098 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10100 /* bounds = array->bounds; */
10101 mono_mb_emit_ldarg (mb, 0);
10102 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10103 mono_mb_emit_byte (mb, CEE_LDIND_I);
10104 mono_mb_emit_stloc (mb, bounds);
10106 /* ind is the overall element index, realidx is the partial index in a single dimension */
10107 /* ind = idx0 - bounds [0].lower_bound */
10108 mono_mb_emit_ldarg (mb, 1);
10109 mono_mb_emit_ldloc (mb, bounds);
10110 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10111 mono_mb_emit_byte (mb, CEE_ADD);
10112 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10113 mono_mb_emit_byte (mb, CEE_SUB);
10114 mono_mb_emit_stloc (mb, ind);
10115 /* if (ind >= bounds [0].length) goto exeception; */
10116 mono_mb_emit_ldloc (mb, ind);
10117 mono_mb_emit_ldloc (mb, bounds);
10118 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10119 mono_mb_emit_byte (mb, CEE_ADD);
10120 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10121 /* note that we use unsigned comparison */
10122 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10124 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10125 * We could also decide to ignore the passed elem_size and get it
10126 * from the array object, to reduce the number of methods we generate:
10127 * the additional cost is 3 memory loads and a non-immediate mul.
10129 for (i = 1; i < rank; ++i) {
10130 /* realidx = idxi - bounds [i].lower_bound */
10131 mono_mb_emit_ldarg (mb, 1 + i);
10132 mono_mb_emit_ldloc (mb, bounds);
10133 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10134 mono_mb_emit_byte (mb, CEE_ADD);
10135 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10136 mono_mb_emit_byte (mb, CEE_SUB);
10137 mono_mb_emit_stloc (mb, realidx);
10138 /* if (realidx >= bounds [i].length) goto exeception; */
10139 mono_mb_emit_ldloc (mb, realidx);
10140 mono_mb_emit_ldloc (mb, bounds);
10141 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10142 mono_mb_emit_byte (mb, CEE_ADD);
10143 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10144 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10145 /* ind = ind * bounds [i].length + realidx */
10146 mono_mb_emit_ldloc (mb, ind);
10147 mono_mb_emit_ldloc (mb, bounds);
10148 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10149 mono_mb_emit_byte (mb, CEE_ADD);
10150 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10151 mono_mb_emit_byte (mb, CEE_MUL);
10152 mono_mb_emit_ldloc (mb, realidx);
10153 mono_mb_emit_byte (mb, CEE_ADD);
10154 mono_mb_emit_stloc (mb, ind);
10157 /* return array->vector + ind * element_size */
10158 mono_mb_emit_ldarg (mb, 0);
10159 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10160 mono_mb_emit_ldloc (mb, ind);
10162 mono_mb_emit_icon (mb, elem_size);
10164 /* Load arr->vtable->klass->sizes.element_class */
10165 mono_mb_emit_ldarg (mb, 0);
10166 mono_mb_emit_byte (mb, CEE_CONV_I);
10167 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10168 mono_mb_emit_byte (mb, CEE_ADD);
10169 mono_mb_emit_byte (mb, CEE_LDIND_I);
10170 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10171 mono_mb_emit_byte (mb, CEE_ADD);
10172 mono_mb_emit_byte (mb, CEE_LDIND_I);
10173 /* sizes is an union, so this reads sizes.element_size */
10174 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10175 mono_mb_emit_byte (mb, CEE_ADD);
10176 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10178 mono_mb_emit_byte (mb, CEE_MUL);
10179 mono_mb_emit_byte (mb, CEE_ADD);
10180 mono_mb_emit_byte (mb, CEE_RET);
10182 /* patch the branches to get here and throw */
10183 for (i = 1; i < rank; ++i) {
10184 mono_mb_patch_branch (mb, branch_positions [i]);
10186 mono_mb_patch_branch (mb, branch_pos);
10187 /* throw exception */
10188 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10190 g_free (branch_positions);
10191 #endif /* DISABLE_JIT */
10193 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10194 info->d.element_addr.rank = rank;
10195 info->d.element_addr.elem_size = elem_size;
10196 ret = mono_mb_create (mb, sig, 4, info);
10199 /* cache the result */
10201 mono_marshal_lock ();
10202 for (i = 0; i < elem_addr_cache_next; ++i) {
10203 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10204 /* FIXME: free ret */
10205 ret = elem_addr_cache [i].method;
10211 if (elem_addr_cache_next >= elem_addr_cache_size) {
10212 int new_size = elem_addr_cache_size + 4;
10213 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10214 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10215 g_free (elem_addr_cache);
10216 elem_addr_cache = new_array;
10217 elem_addr_cache_size = new_size;
10219 elem_addr_cache [elem_addr_cache_next].rank = rank;
10220 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10221 elem_addr_cache [elem_addr_cache_next].method = ret;
10222 elem_addr_cache_next ++;
10224 mono_marshal_unlock ();
10229 * mono_marshal_get_array_accessor_wrapper:
10231 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10234 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10236 MonoMethodSignature *sig;
10237 MonoMethodBuilder *mb;
10241 MonoGenericContext *ctx = NULL;
10242 MonoMethod *orig_method = NULL;
10243 MonoGenericContainer *container = NULL;
10247 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10248 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10249 * FIXME: Use generic methods.
10256 g_assert_not_reached ();
10258 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10259 if ((res = mono_marshal_find_in_cache (cache, method)))
10263 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10266 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10268 #ifndef DISABLE_JIT
10269 /* Call the method */
10271 mono_mb_emit_ldarg (mb, 0);
10272 for (i = 0; i < sig->param_count; i++)
10273 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10277 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10278 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10280 mono_mb_emit_managed_call (mb, method, NULL);
10282 mono_mb_emit_byte (mb, CEE_RET);
10285 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10286 info->d.array_accessor.method = method;
10290 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10291 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10293 res = mono_mb_create_and_cache_full (cache, method,
10294 mb, sig, sig->param_count + 16,
10303 mono_marshal_alloc (gulong size, MonoError *error)
10307 mono_error_init (error);
10310 res = CoTaskMemAlloc (size);
10312 res = g_try_malloc ((gulong)size);
10314 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10319 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10321 ves_icall_marshal_alloc (gulong size)
10324 void *ret = mono_marshal_alloc (size, &error);
10325 if (!mono_error_ok (&error)) {
10326 mono_error_set_pending_exception (&error);
10334 mono_marshal_free (gpointer ptr)
10337 CoTaskMemFree (ptr);
10344 mono_marshal_free_array (gpointer *ptr, int size)
10351 for (i = 0; i < size; i++)
10357 mono_marshal_string_to_utf16 (MonoString *s)
10359 return s ? mono_string_chars (s) : NULL;
10362 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10364 mono_marshal_string_to_utf16_copy (MonoString *s)
10370 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10371 if (!mono_error_ok (&error)) {
10372 mono_error_set_pending_exception (&error);
10375 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10376 res [mono_string_length (s)] = 0;
10382 * mono_marshal_set_last_error:
10384 * This function is invoked to set the last error value from a P/Invoke call
10385 * which has SetLastError set.
10388 mono_marshal_set_last_error (void)
10391 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10393 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10398 mono_marshal_set_last_error_windows (int error)
10401 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10406 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10407 gpointer dest, gint32 length)
10412 MONO_CHECK_ARG_NULL (src,);
10413 MONO_CHECK_ARG_NULL (dest,);
10415 if (src->obj.vtable->klass->rank != 1) {
10416 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10419 if (start_index < 0) {
10420 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10424 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10427 if (start_index + length > mono_array_length (src)) {
10428 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10432 element_size = mono_array_element_size (src->obj.vtable->klass);
10434 /* no references should be involved */
10435 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10437 memcpy (dest, source_addr, length * element_size);
10441 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10442 MonoArray *dest, gint32 length)
10447 MONO_CHECK_ARG_NULL (src,);
10448 MONO_CHECK_ARG_NULL (dest,);
10450 if (dest->obj.vtable->klass->rank != 1) {
10451 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10454 if (start_index < 0) {
10455 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10459 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10462 if (start_index + length > mono_array_length (dest)) {
10463 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10466 element_size = mono_array_element_size (dest->obj.vtable->klass);
10468 /* no references should be involved */
10469 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10471 memcpy (dest_addr, src, length * element_size);
10475 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10480 return mono_string_new (mono_domain_get (), ptr);
10484 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10487 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10490 return mono_string_new_len (mono_domain_get (), ptr, len);
10495 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10498 MonoString *res = NULL;
10499 MonoDomain *domain = mono_domain_get ();
10509 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10510 if (!mono_error_ok (&error)) {
10511 mono_error_set_pending_exception (&error);
10518 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10521 MonoString *res = NULL;
10522 MonoDomain *domain = mono_domain_get ();
10524 mono_error_init (&error);
10528 mono_error_set_argument_null (&error, "ptr", "");
10530 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10533 if (!mono_error_ok (&error))
10534 mono_error_set_pending_exception (&error);
10539 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10541 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10545 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10551 MONO_CHECK_ARG_NULL (rtype, 0);
10553 type = rtype->type;
10554 klass = mono_class_from_mono_type (type);
10555 if (!mono_class_init (klass)) {
10556 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10560 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10562 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10563 return sizeof (gpointer);
10564 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10566 MonoException *exc;
10568 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10569 exc = mono_get_exception_argument ("t", msg);
10571 mono_set_pending_exception (exc);
10575 return mono_class_native_size (klass, NULL);
10579 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10582 MonoMethod *method;
10585 MONO_CHECK_ARG_NULL (obj,);
10586 MONO_CHECK_ARG_NULL (dst,);
10588 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10592 pa [2] = &delete_old;
10594 mono_runtime_invoke_checked (method, NULL, pa, &error);
10595 if (!mono_error_ok (&error))
10596 mono_error_set_pending_exception (&error);
10600 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10602 MonoMethod *method;
10605 mono_error_init (error);
10607 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10612 mono_runtime_invoke_checked (method, NULL, pa, error);
10616 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10621 MONO_CHECK_ARG_NULL (src,);
10622 MONO_CHECK_ARG_NULL (dst,);
10624 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10626 if (t->type == MONO_TYPE_VALUETYPE) {
10627 MonoException *exc;
10630 tmp = g_strdup_printf ("Destination is a boxed value type.");
10631 exc = mono_get_exception_argument ("dst", tmp);
10634 mono_set_pending_exception (exc);
10638 ptr_to_structure (src, dst, &error);
10639 if (!mono_error_ok (&error))
10640 mono_error_set_pending_exception (&error);
10644 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10648 MonoDomain *domain = mono_domain_get ();
10653 MONO_CHECK_ARG_NULL (type, NULL);
10655 klass = mono_class_from_mono_type (type->type);
10656 if (!mono_class_init (klass)) {
10657 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10661 res = mono_object_new_checked (domain, klass, &error);
10662 if (!mono_error_ok (&error)) {
10663 mono_error_set_pending_exception (&error);
10667 ptr_to_structure (src, res, &error);
10668 if (!mono_error_ok (&error)) {
10669 mono_error_set_pending_exception (&error);
10677 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10679 MonoMarshalType *info;
10682 int match_index = -1;
10684 MONO_CHECK_ARG_NULL (type, 0);
10685 MONO_CHECK_ARG_NULL (field_name, 0);
10687 fname = mono_string_to_utf8 (field_name);
10688 klass = mono_class_from_mono_type (type->type);
10689 if (!mono_class_init (klass)) {
10690 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10694 while (klass && match_index == -1) {
10695 MonoClassField* field;
10697 gpointer iter = NULL;
10698 while ((field = mono_class_get_fields (klass, &iter))) {
10699 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10701 if (!strcmp (fname, mono_field_get_name (field))) {
10708 if (match_index == -1)
10709 klass = klass->parent;
10714 if(match_index == -1) {
10715 MonoException* exc;
10718 /* Get back original class instance */
10719 klass = mono_class_from_mono_type (type->type);
10721 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10722 exc = mono_get_exception_argument ("fieldName", tmp);
10725 mono_set_pending_exception ((MonoException*)exc);
10729 info = mono_marshal_load_type_info (klass);
10730 return info->fields [match_index].offset;
10734 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10739 tres = mono_string_to_utf8 (string);
10743 len = strlen (tres) + 1;
10744 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10745 memcpy (ret, tres, len);
10750 return mono_string_to_utf8 (string);
10755 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10757 if (string == NULL)
10760 #ifdef TARGET_WIN32
10761 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10762 ((mono_string_length (string) + 1) * 2);
10764 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10766 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10767 res [mono_string_length (string)] = 0;
10773 mono_struct_delete_old (MonoClass *klass, char *ptr)
10775 MonoMarshalType *info;
10778 info = mono_marshal_load_type_info (klass);
10780 for (i = 0; i < info->num_fields; i++) {
10781 MonoMarshalConv conv;
10782 MonoType *ftype = info->fields [i].field->type;
10785 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10788 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10789 klass->unicode, &conv);
10791 cpos = ptr + info->fields [i].offset;
10794 case MONO_MARSHAL_CONV_NONE:
10795 if (MONO_TYPE_ISSTRUCT (ftype)) {
10796 mono_struct_delete_old (ftype->data.klass, cpos);
10800 case MONO_MARSHAL_CONV_STR_LPWSTR:
10801 /* We assume this field points inside a MonoString */
10803 case MONO_MARSHAL_CONV_STR_LPTSTR:
10804 #ifdef TARGET_WIN32
10805 /* We assume this field points inside a MonoString
10809 case MONO_MARSHAL_CONV_STR_LPSTR:
10810 case MONO_MARSHAL_CONV_STR_BSTR:
10811 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10812 case MONO_MARSHAL_CONV_STR_TBSTR:
10813 mono_marshal_free (*(gpointer *)cpos);
10823 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10827 MONO_CHECK_ARG_NULL (src,);
10828 MONO_CHECK_ARG_NULL (type,);
10830 klass = mono_class_from_mono_type (type->type);
10831 if (!mono_class_init (klass)) {
10832 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10836 mono_struct_delete_old (klass, (char *)src);
10840 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10843 size_t s = (size_t)size;
10846 /* This returns a valid pointer for size 0 on MS.NET */
10850 res = GlobalAlloc (GMEM_FIXED, s);
10852 res = g_try_malloc (s);
10855 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10863 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10866 size_t s = (size_t)size;
10869 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10874 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10876 res = g_try_realloc (ptr, s);
10879 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10887 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10897 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10902 res = CoTaskMemAlloc (size);
10904 if ((gulong)size == 0)
10905 /* This returns a valid pointer for size 0 on MS.NET */
10908 res = g_try_malloc ((gulong)size);
10911 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10918 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10921 CoTaskMemFree (ptr);
10928 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10933 res = CoTaskMemRealloc (ptr, size);
10935 res = g_try_realloc (ptr, (gulong)size);
10938 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10945 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10947 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10951 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10953 MonoClass *klass = mono_type_get_class (type->type);
10954 if (!mono_class_init (klass)) {
10955 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10959 return mono_ftnptr_to_delegate (klass, ftn);
10963 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10965 return mono_delegate_to_ftnptr (delegate);
10969 * mono_marshal_is_loading_type_info:
10971 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10975 mono_marshal_is_loading_type_info (MonoClass *klass)
10977 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10979 return g_slist_find (loads_list, klass) != NULL;
10983 * mono_marshal_load_type_info:
10985 * Initialize klass->marshal_info using information from metadata. This function can
10986 * recursively call itself, and the caller is responsible to avoid that by calling
10987 * mono_marshal_is_loading_type_info () beforehand.
10989 * LOCKING: Acquires the loader lock.
10992 mono_marshal_load_type_info (MonoClass* klass)
10995 guint32 native_size = 0, min_align = 1, packing;
10996 MonoMarshalType *info;
10997 MonoClassField* field;
11000 GSList *loads_list;
11002 g_assert (klass != NULL);
11004 if (klass->marshal_info)
11005 return klass->marshal_info;
11007 if (!klass->inited)
11008 mono_class_init (klass);
11010 if (klass->marshal_info)
11011 return klass->marshal_info;
11014 * This function can recursively call itself, so we keep the list of classes which are
11015 * under initialization in a TLS list.
11017 g_assert (!mono_marshal_is_loading_type_info (klass));
11018 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11019 loads_list = g_slist_prepend (loads_list, klass);
11020 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11023 while ((field = mono_class_get_fields (klass, &iter))) {
11024 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11026 if (mono_field_is_deleted (field))
11031 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11033 /* The mempool is protected by the loader lock */
11034 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11035 info->num_fields = count;
11037 /* Try to find a size for this type in metadata */
11038 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11040 if (klass->parent) {
11041 int parent_size = mono_class_native_size (klass->parent, NULL);
11043 /* Add parent size to real size */
11044 native_size += parent_size;
11045 info->native_size = parent_size;
11048 packing = klass->packing_size ? klass->packing_size : 8;
11051 while ((field = mono_class_get_fields (klass, &iter))) {
11055 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11058 if (mono_field_is_deleted (field))
11060 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11061 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11062 NULL, NULL, &info->fields [j].mspec);
11064 info->fields [j].field = field;
11066 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11067 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11068 /* This field is a hack inserted by MCS to empty structures */
11073 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11074 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11075 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11076 &align, TRUE, klass->unicode);
11077 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11078 min_align = MAX (align, min_align);
11079 info->fields [j].offset = info->native_size;
11080 info->fields [j].offset += align - 1;
11081 info->fields [j].offset &= ~(align - 1);
11082 info->native_size = info->fields [j].offset + size;
11084 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11085 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11086 &align, TRUE, klass->unicode);
11087 min_align = MAX (align, min_align);
11088 info->fields [j].offset = field->offset - sizeof (MonoObject);
11089 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11095 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11096 info->native_size = MAX (native_size, info->native_size);
11098 * If the provided Size is equal or larger than the calculated size, and there
11099 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11101 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11102 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11105 min_align = MIN (min_align, packing);
11109 if (info->native_size & (min_align - 1)) {
11110 info->native_size += min_align - 1;
11111 info->native_size &= ~(min_align - 1);
11114 info->min_align = min_align;
11116 /* Update the class's blittable info, if the layouts don't match */
11117 if (info->native_size != mono_class_value_size (klass, NULL))
11118 klass->blittable = FALSE;
11120 /* If this is an array type, ensure that we have element info */
11121 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11122 mono_marshal_load_type_info (klass->element_class);
11125 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11126 loads_list = g_slist_remove (loads_list, klass);
11127 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11129 mono_marshal_lock ();
11130 if (!klass->marshal_info) {
11131 /*We do double-checking locking on marshal_info */
11132 mono_memory_barrier ();
11133 klass->marshal_info = info;
11135 mono_marshal_unlock ();
11137 return klass->marshal_info;
11141 * mono_class_native_size:
11144 * Returns: the native size of an object instance (when marshaled
11145 * to unmanaged code)
11148 mono_class_native_size (MonoClass *klass, guint32 *align)
11150 if (!klass->marshal_info) {
11151 if (mono_marshal_is_loading_type_info (klass)) {
11156 mono_marshal_load_type_info (klass);
11161 *align = klass->marshal_info->min_align;
11163 return klass->marshal_info->native_size;
11167 * mono_type_native_stack_size:
11168 * @t: the type to return the size it uses on the stack
11170 * Returns: the number of bytes required to hold an instance of this
11171 * type on the native stack
11174 mono_type_native_stack_size (MonoType *t, guint32 *align)
11178 g_assert (t != NULL);
11184 *align = sizeof (gpointer);
11185 return sizeof (gpointer);
11189 case MONO_TYPE_BOOLEAN:
11190 case MONO_TYPE_CHAR:
11201 case MONO_TYPE_STRING:
11202 case MONO_TYPE_OBJECT:
11203 case MONO_TYPE_CLASS:
11204 case MONO_TYPE_SZARRAY:
11205 case MONO_TYPE_PTR:
11206 case MONO_TYPE_FNPTR:
11207 case MONO_TYPE_ARRAY:
11208 *align = sizeof (gpointer);
11209 return sizeof (gpointer);
11214 *align = MONO_ABI_ALIGNOF (double);
11218 *align = MONO_ABI_ALIGNOF (gint64);
11220 case MONO_TYPE_GENERICINST:
11221 if (!mono_type_generic_inst_is_valuetype (t)) {
11222 *align = sizeof (gpointer);
11223 return sizeof (gpointer);
11226 case MONO_TYPE_TYPEDBYREF:
11227 case MONO_TYPE_VALUETYPE: {
11229 MonoClass *klass = mono_class_from_mono_type (t);
11231 if (klass->enumtype)
11232 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11234 size = mono_class_native_size (klass, align);
11235 *align = *align + 3;
11245 g_error ("type 0x%02x unknown", t->type);
11251 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11252 gboolean as_field, gboolean unicode)
11254 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11257 switch (native_type) {
11258 case MONO_NATIVE_BOOLEAN:
11261 case MONO_NATIVE_I1:
11262 case MONO_NATIVE_U1:
11265 case MONO_NATIVE_I2:
11266 case MONO_NATIVE_U2:
11267 case MONO_NATIVE_VARIANTBOOL:
11270 case MONO_NATIVE_I4:
11271 case MONO_NATIVE_U4:
11272 case MONO_NATIVE_ERROR:
11275 case MONO_NATIVE_I8:
11276 case MONO_NATIVE_U8:
11277 *align = MONO_ABI_ALIGNOF (gint64);
11279 case MONO_NATIVE_R4:
11282 case MONO_NATIVE_R8:
11283 *align = MONO_ABI_ALIGNOF (double);
11285 case MONO_NATIVE_INT:
11286 case MONO_NATIVE_UINT:
11287 case MONO_NATIVE_LPSTR:
11288 case MONO_NATIVE_LPWSTR:
11289 case MONO_NATIVE_LPTSTR:
11290 case MONO_NATIVE_BSTR:
11291 case MONO_NATIVE_ANSIBSTR:
11292 case MONO_NATIVE_TBSTR:
11293 case MONO_NATIVE_LPARRAY:
11294 case MONO_NATIVE_SAFEARRAY:
11295 case MONO_NATIVE_IUNKNOWN:
11296 case MONO_NATIVE_IDISPATCH:
11297 case MONO_NATIVE_INTERFACE:
11298 case MONO_NATIVE_ASANY:
11299 case MONO_NATIVE_FUNC:
11300 case MONO_NATIVE_LPSTRUCT:
11301 *align = MONO_ABI_ALIGNOF (gpointer);
11302 return sizeof (gpointer);
11303 case MONO_NATIVE_STRUCT:
11304 klass = mono_class_from_mono_type (type);
11305 if (klass == mono_defaults.object_class &&
11306 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11310 return mono_class_native_size (klass, align);
11311 case MONO_NATIVE_BYVALTSTR: {
11312 int esize = unicode ? 2: 1;
11315 return mspec->data.array_data.num_elem * esize;
11317 case MONO_NATIVE_BYVALARRAY: {
11318 // FIXME: Have to consider ArraySubType
11320 klass = mono_class_from_mono_type (type);
11321 if (klass->element_class == mono_defaults.char_class) {
11322 esize = unicode ? 2 : 1;
11325 esize = mono_class_native_size (klass->element_class, align);
11328 return mspec->data.array_data.num_elem * esize;
11330 case MONO_NATIVE_CUSTOM:
11331 *align = sizeof (gpointer);
11332 return sizeof (gpointer);
11334 case MONO_NATIVE_CURRENCY:
11335 case MONO_NATIVE_VBBYREFSTR:
11337 g_error ("native type %02x not implemented", native_type);
11340 g_assert_not_reached ();
11344 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11346 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11355 t = &o->vtable->klass->byval_arg;
11359 case MONO_TYPE_PTR:
11362 case MONO_TYPE_BOOLEAN:
11365 case MONO_TYPE_CHAR:
11370 return mono_object_unbox (o);
11372 case MONO_TYPE_STRING:
11373 switch (string_encoding) {
11374 case MONO_NATIVE_LPWSTR:
11375 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11377 case MONO_NATIVE_LPSTR:
11378 return mono_string_to_lpstr ((MonoString*)o);
11381 g_warning ("marshaling conversion %d not implemented", string_encoding);
11382 g_assert_not_reached ();
11385 case MONO_TYPE_CLASS:
11386 case MONO_TYPE_VALUETYPE: {
11387 MonoMethod *method;
11390 MonoBoolean delete_old = FALSE;
11392 klass = t->data.klass;
11394 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11397 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11398 klass->blittable || klass->enumtype))
11399 return mono_object_unbox (o);
11401 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11402 if (!mono_error_ok (&error)) {
11403 mono_error_set_pending_exception (&error);
11407 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11408 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11412 pa [2] = &delete_old;
11414 mono_runtime_invoke_checked (method, NULL, pa, &error);
11415 if (!mono_error_ok (&error)) {
11416 mono_error_set_pending_exception (&error);
11426 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11430 /* This is a JIT icall, it sets the pending exception */
11432 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11441 t = &o->vtable->klass->byval_arg;
11443 case MONO_TYPE_STRING:
11444 switch (string_encoding) {
11445 case MONO_NATIVE_LPWSTR:
11446 case MONO_NATIVE_LPSTR:
11447 mono_marshal_free (ptr);
11450 g_warning ("marshaling conversion %d not implemented", string_encoding);
11451 g_assert_not_reached ();
11454 case MONO_TYPE_CLASS:
11455 case MONO_TYPE_VALUETYPE: {
11456 klass = t->data.klass;
11458 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11459 klass->blittable || klass->enumtype))
11462 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11463 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11469 mono_runtime_invoke_checked (method, NULL, pa, &error);
11470 if (!mono_error_ok (&error)) {
11471 mono_error_set_pending_exception (&error);
11476 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11477 mono_struct_delete_old (klass, (char *)ptr);
11480 mono_marshal_free (ptr);
11489 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11491 MonoMethodSignature *sig, *csig;
11492 MonoMethodBuilder *mb;
11497 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11498 mb->method->slot = -1;
11500 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11501 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11503 sig = mono_method_signature (method);
11504 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11505 csig->generic_param_count = 0;
11507 #ifndef DISABLE_JIT
11508 mono_mb_emit_ldarg (mb, 0);
11509 for (i = 0; i < csig->param_count; i++)
11510 mono_mb_emit_ldarg (mb, i + 1);
11511 mono_mb_emit_managed_call (mb, method, NULL);
11512 mono_mb_emit_byte (mb, CEE_RET);
11514 /* We can corlib internal methods */
11515 mb->skip_visibility = TRUE;
11517 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11518 info->d.generic_array_helper.method = method;
11519 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11527 * The mono_win32_compat_* functions are implementations of inline
11528 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11529 * although not exported by kernel32.
11531 * We map the appropiate kernel32 entries to these functions using
11532 * dllmaps declared in the global etc/mono/config.
11536 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11538 if (!dest || !source)
11541 memcpy (dest, source, length);
11545 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11547 memset (dest, fill, length);
11551 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11553 if (!dest || !source)
11556 memmove (dest, source, length);
11560 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11562 memset (dest, 0, length);
11566 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11571 for (i = 0; i < len; ++i)
11575 g_assert (i < len);
11578 while (byte && !(byte & 1))
11580 g_assert (byte == 1);
11583 *bitmask = buf [i];
11587 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11589 MonoMethodBuilder *mb;
11590 MonoMethodSignature *sig, *csig;
11591 MonoExceptionClause *clause;
11596 int i, param_count, sig_size, pos_leave;
11597 int coop_gc_var, coop_gc_dummy_local;
11601 klass = method->klass;
11602 image = method->klass->image;
11604 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11606 if ((res = mono_marshal_find_in_cache (cache, method)))
11609 sig = mono_method_signature (method);
11610 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11612 /* add "this" and exception param */
11613 param_count = sig->param_count + sig->hasthis + 1;
11615 /* dup & extend signature */
11616 csig = mono_metadata_signature_alloc (image, param_count);
11617 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11618 memcpy (csig, sig, sig_size);
11619 csig->param_count = param_count;
11622 csig->call_convention = MONO_CALL_DEFAULT;
11624 if (sig->hasthis) {
11626 csig->params [0] = &klass->byval_arg;
11627 /* move params up by one */
11628 for (i = 0; i < sig->param_count; i++)
11629 csig->params [i + 1] = sig->params [i];
11632 /* setup exception param as byref+[out] */
11633 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11634 &mono_defaults.exception_class->byval_arg);
11635 csig->params [param_count - 1]->byref = 1;
11636 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11638 /* convert struct return to object */
11639 if (MONO_TYPE_ISSTRUCT (sig->ret))
11640 csig->ret = &mono_defaults.object_class->byval_arg;
11642 #ifndef DISABLE_JIT
11643 /* local 0 (temp for exception object) */
11644 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11646 /* local 1 (temp for result) */
11647 if (!MONO_TYPE_IS_VOID (sig->ret))
11648 mono_mb_add_local (mb, sig->ret);
11650 if (mono_threads_is_coop_enabled ()) {
11651 /* local 4, the local to be used when calling the reset_blocking funcs */
11652 /* tons of code hardcode 3 to be the return var */
11653 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11654 /* local 5, the local used to get a stack address for suspend funcs */
11655 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11658 /* clear exception arg */
11659 mono_mb_emit_ldarg (mb, param_count - 1);
11660 mono_mb_emit_byte (mb, CEE_LDNULL);
11661 mono_mb_emit_byte (mb, CEE_STIND_REF);
11663 if (mono_threads_is_coop_enabled ()) {
11664 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11665 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11666 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11667 mono_mb_emit_stloc (mb, coop_gc_var);
11671 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11672 clause->try_offset = mono_mb_get_label (mb);
11674 /* push method's args */
11675 for (i = 0; i < param_count - 1; i++) {
11679 mono_mb_emit_ldarg (mb, i);
11681 /* get the byval type of the param */
11682 klass = mono_class_from_mono_type (csig->params [i]);
11683 type = &klass->byval_arg;
11685 /* unbox struct args */
11686 if (MONO_TYPE_ISSTRUCT (type)) {
11687 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11689 /* byref args & and the "this" arg must remain a ptr.
11690 Otherwise make a copy of the value type */
11691 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11692 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11694 csig->params [i] = &mono_defaults.object_class->byval_arg;
11699 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11700 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11702 mono_mb_emit_op (mb, CEE_CALL, method);
11704 /* save result at local 1 */
11705 if (!MONO_TYPE_IS_VOID (sig->ret))
11706 mono_mb_emit_stloc (mb, 1);
11708 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11711 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11712 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11713 clause->data.catch_class = mono_defaults.object_class;
11715 clause->handler_offset = mono_mb_get_label (mb);
11717 /* store exception at local 0 */
11718 mono_mb_emit_stloc (mb, 0);
11719 mono_mb_emit_ldarg (mb, param_count - 1);
11720 mono_mb_emit_ldloc (mb, 0);
11721 mono_mb_emit_byte (mb, CEE_STIND_REF);
11722 mono_mb_emit_branch (mb, CEE_LEAVE);
11724 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11726 mono_mb_set_clauses (mb, 1, clause);
11728 mono_mb_patch_branch (mb, pos_leave);
11731 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11732 mono_mb_emit_ldloc (mb, 1);
11734 /* box the return value */
11735 if (MONO_TYPE_ISSTRUCT (sig->ret))
11736 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11739 if (mono_threads_is_coop_enabled ()) {
11740 /* XXX merge reset_blocking_end with detach */
11741 mono_mb_emit_ldloc (mb, coop_gc_var);
11742 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11743 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11746 mono_mb_emit_byte (mb, CEE_RET);
11749 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11756 * mono_marshal_free_dynamic_wrappers:
11758 * Free wrappers of the dynamic method METHOD.
11761 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11763 MonoImage *image = method->klass->image;
11765 g_assert (method_is_dynamic (method));
11767 /* This could be called during shutdown */
11768 if (marshal_mutex_initialized)
11769 mono_marshal_lock ();
11771 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11772 * they could be shared with other methods ?
11774 if (image->wrapper_caches.runtime_invoke_direct_cache)
11775 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11776 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11777 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11778 // FIXME: Need to clear the caches in other images as well
11779 if (image->delegate_bound_static_invoke_cache)
11780 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11782 if (marshal_mutex_initialized)
11783 mono_marshal_unlock ();