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);
609 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
611 mono_string_from_byvalstr (const char *data, int max_len)
614 MonoDomain *domain = mono_domain_get ();
620 while (len < max_len - 1 && data [len])
623 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
624 mono_error_set_pending_exception (&error);
628 /* This is a JIT icall, it sets the pending exception and return NULL on error */
630 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
633 MonoString *res = NULL;
634 MonoDomain *domain = mono_domain_get ();
640 while (data [len]) len++;
642 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
643 if (!mono_error_ok (&error)) {
644 mono_error_set_pending_exception (&error);
651 mono_array_to_savearray (MonoArray *array)
656 g_assert_not_reached ();
661 mono_array_to_lparray (MonoArray *array)
664 gpointer *nativeArray = NULL;
665 int nativeArraySize = 0;
675 klass = array->obj.vtable->klass;
677 switch (klass->element_class->byval_arg.type) {
679 g_assert_not_reached ();
681 case MONO_TYPE_CLASS:
682 nativeArraySize = array->max_length;
683 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
684 for(i = 0; i < nativeArraySize; ++i)
685 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
688 case MONO_TYPE_BOOLEAN:
701 case MONO_TYPE_VALUETYPE:
705 case MONO_TYPE_GENERICINST:
706 case MONO_TYPE_OBJECT:
707 case MONO_TYPE_ARRAY:
708 case MONO_TYPE_SZARRAY:
709 case MONO_TYPE_STRING:
711 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
712 g_assert_not_reached ();
715 return array->vector;
719 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
730 klass = array->obj.vtable->klass;
732 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
733 for(i = 0; i < array->max_length; ++i)
734 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
741 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
743 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
745 if (elclass == mono_defaults.byte_class) {
746 GError *error = NULL;
750 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
753 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
757 g_error_free (error);
760 g_assert_not_reached ();
764 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
766 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
769 /* This is a JIT icall, it sets the pending exception and returns on error */
771 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
773 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
775 if (elclass == mono_defaults.byte_class) {
777 GError *error = NULL;
779 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
781 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
782 g_error_free (error);
786 memcpy (native_arr, as, MIN (strlen (as), elnum));
789 g_assert_not_reached ();
794 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
796 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
799 static MonoStringBuilder *
800 mono_string_builder_new (int starting_string_length)
802 static MonoClass *string_builder_class;
803 static MonoMethod *sb_ctor;
804 static void *args [1];
807 int initial_len = starting_string_length;
813 MonoMethodDesc *desc;
816 string_builder_class = mono_class_get_string_builder_class ();
817 g_assert (string_builder_class);
818 desc = mono_method_desc_new (":.ctor(int)", FALSE);
819 m = mono_method_desc_search_in_class (desc, string_builder_class);
821 mono_method_desc_free (desc);
822 mono_memory_barrier ();
826 // We make a new array in the _to_builder function, so this
827 // array will always be garbage collected.
828 args [0] = &initial_len;
830 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
831 mono_error_assert_ok (&error);
834 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
835 g_assert (exc == NULL);
836 mono_error_assert_ok (&error);
838 g_assert (sb->chunkChars->max_length >= initial_len);
844 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
846 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
847 gunichar2 *charSrc = (gunichar2 *)text;
848 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
850 sb->chunkLength = string_len;
856 mono_string_utf16_to_builder2 (gunichar2 *text)
862 for (len = 0; text [len] != 0; ++len);
864 MonoStringBuilder *sb = mono_string_builder_new (len);
865 mono_string_utf16_to_builder (sb, text);
871 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
876 int len = strlen (text);
877 if (len > mono_string_builder_capacity (sb))
878 len = mono_string_builder_capacity (sb);
880 GError *error = NULL;
882 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
885 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
886 mono_string_utf16_to_builder_copy (sb, ut, copied);
888 g_error_free (error);
894 mono_string_utf8_to_builder2 (char *text)
899 int len = strlen (text);
900 MonoStringBuilder *sb = mono_string_builder_new (len);
901 mono_string_utf8_to_builder (sb, text);
908 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
914 for (len = 0; text [len] != 0; ++len);
916 if (len > mono_string_builder_capacity (sb))
917 len = mono_string_builder_capacity (sb);
919 mono_string_utf16_to_builder_copy (sb, text, len);
923 * mono_string_builder_to_utf8:
924 * @sb: the string builder
926 * Converts to utf8 the contents of the MonoStringBuilder.
928 * Returns: a utf8 string with the contents of the StringBuilder.
930 * The return value must be released with g_free.
932 * This is a JIT icall, it sets the pending exception and returns NULL on error.
935 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
938 GError *gerror = NULL;
943 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
945 guint str_len = mono_string_builder_string_length (sb);
947 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
950 g_error_free (gerror);
952 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
955 guint len = mono_string_builder_capacity (sb) + 1;
956 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
957 if (!mono_error_ok (&error)) {
960 mono_error_set_pending_exception (&error);
964 g_assert (str_len < len);
965 memcpy (res, tmp, str_len * sizeof (gchar));
975 * mono_string_builder_to_utf16:
976 * @sb: the string builder
978 * Converts to utf16 the contents of the MonoStringBuilder.
980 * Returns: a utf16 string with the contents of the StringBuilder.
982 * The return value must not be freed.
983 * This is a JIT icall, it sets the pending exception and returns NULL on error.
986 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
993 g_assert (sb->chunkChars);
995 guint len = mono_string_builder_capacity (sb);
1000 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1001 if (!mono_error_ok (&error)) {
1002 mono_error_set_pending_exception (&error);
1011 MonoStringBuilder* chunk = sb;
1013 if (chunk->chunkLength > 0) {
1014 // Check that we will not overrun our boundaries.
1015 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1017 if (chunk->chunkLength <= len) {
1018 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1020 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1023 len -= chunk->chunkLength;
1025 chunk = chunk->chunkPrevious;
1026 } while (chunk != NULL);
1031 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1033 mono_string_to_lpstr (MonoString *s)
1038 GError *error = NULL;
1044 as = CoTaskMemAlloc (1);
1049 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1051 MonoException *exc = mono_get_exception_argument ("string", error->message);
1052 g_error_free (error);
1053 mono_set_pending_exception (exc);
1056 as = CoTaskMemAlloc (len + 1);
1057 memcpy (as, tmp, len + 1);
1062 return mono_string_to_utf8 (s);
1067 mono_string_to_ansibstr (MonoString *string_obj)
1069 g_error ("UnmanagedMarshal.BStr is not implemented.");
1074 * mono_string_to_byvalstr:
1075 * @dst: Where to store the null-terminated utf8 decoded string.
1076 * @src: the MonoString to copy.
1077 * @size: the maximum number of bytes to copy.
1079 * Copies the MonoString pointed to by @src as a utf8 string
1080 * into @dst, it copies at most @size bytes into the destination.
1083 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1088 g_assert (dst != NULL);
1089 g_assert (size > 0);
1091 memset (dst, 0, size);
1095 s = mono_string_to_utf8 (src);
1096 len = MIN (size, strlen (s));
1099 memcpy (dst, s, len);
1104 * mono_string_to_byvalwstr:
1105 * @dst: Where to store the null-terminated utf16 decoded string.
1106 * @src: the MonoString to copy.
1107 * @size: the maximum number of bytes to copy.
1109 * Copies the MonoString pointed to by @src as a utf16 string into
1110 * @dst, it copies at most @size bytes into the destination (including
1111 * a terminating 16-bit zero terminator).
1114 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1118 g_assert (dst != NULL);
1119 g_assert (size > 1);
1122 memset (dst, 0, size * 2);
1126 len = MIN (size, (mono_string_length (src)));
1127 memcpy (dst, mono_string_chars (src), size * 2);
1128 if (size <= mono_string_length (src))
1130 *((gunichar2 *) dst + len) = 0;
1133 /* this is an icall, it sets the pending exception and returns NULL on error */
1135 mono_string_new_len_wrapper (const char *text, guint length)
1138 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1139 mono_error_set_pending_exception (&error);
1146 * mono_mb_emit_exception_marshal_directive:
1148 * This function assumes ownership of MSG, which should be malloc-ed.
1151 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1156 s = mono_image_strdup (mb->method->klass->image, msg);
1161 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1164 #endif /* !DISABLE_JIT */
1167 mono_type_to_ldind (MonoType *type)
1173 switch (type->type) {
1175 return CEE_LDIND_I1;
1177 case MONO_TYPE_BOOLEAN:
1178 return CEE_LDIND_U1;
1180 return CEE_LDIND_I2;
1182 case MONO_TYPE_CHAR:
1183 return CEE_LDIND_U2;
1185 return CEE_LDIND_I4;
1187 return CEE_LDIND_U4;
1191 case MONO_TYPE_FNPTR:
1193 case MONO_TYPE_CLASS:
1194 case MONO_TYPE_STRING:
1195 case MONO_TYPE_OBJECT:
1196 case MONO_TYPE_SZARRAY:
1197 case MONO_TYPE_ARRAY:
1198 return CEE_LDIND_REF;
1201 return CEE_LDIND_I8;
1203 return CEE_LDIND_R4;
1205 return CEE_LDIND_R8;
1206 case MONO_TYPE_VALUETYPE:
1207 if (type->data.klass->enumtype) {
1208 type = mono_class_enum_basetype (type->data.klass);
1212 case MONO_TYPE_TYPEDBYREF:
1214 case MONO_TYPE_GENERICINST:
1215 type = &type->data.generic_class->container_class->byval_arg;
1218 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1224 mono_type_to_stind (MonoType *type)
1227 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1231 switch (type->type) {
1234 case MONO_TYPE_BOOLEAN:
1235 return CEE_STIND_I1;
1238 case MONO_TYPE_CHAR:
1239 return CEE_STIND_I2;
1242 return CEE_STIND_I4;
1246 case MONO_TYPE_FNPTR:
1248 case MONO_TYPE_CLASS:
1249 case MONO_TYPE_STRING:
1250 case MONO_TYPE_OBJECT:
1251 case MONO_TYPE_SZARRAY:
1252 case MONO_TYPE_ARRAY:
1253 return CEE_STIND_REF;
1256 return CEE_STIND_I8;
1258 return CEE_STIND_R4;
1260 return CEE_STIND_R8;
1261 case MONO_TYPE_VALUETYPE:
1262 if (type->data.klass->enumtype) {
1263 type = mono_class_enum_basetype (type->data.klass);
1267 case MONO_TYPE_TYPEDBYREF:
1269 case MONO_TYPE_GENERICINST:
1270 type = &type->data.generic_class->container_class->byval_arg;
1273 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1281 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1284 case MONO_MARSHAL_CONV_BOOL_I4:
1285 mono_mb_emit_ldloc (mb, 1);
1286 mono_mb_emit_ldloc (mb, 0);
1287 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1288 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1289 mono_mb_emit_byte (mb, 3);
1290 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1291 mono_mb_emit_byte (mb, CEE_BR_S);
1292 mono_mb_emit_byte (mb, 1);
1293 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1294 mono_mb_emit_byte (mb, CEE_STIND_I1);
1296 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1297 mono_mb_emit_ldloc (mb, 1);
1298 mono_mb_emit_ldloc (mb, 0);
1299 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1300 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1301 mono_mb_emit_byte (mb, 3);
1302 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1303 mono_mb_emit_byte (mb, CEE_BR_S);
1304 mono_mb_emit_byte (mb, 1);
1305 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1306 mono_mb_emit_byte (mb, CEE_STIND_I1);
1308 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1309 MonoClass *eklass = NULL;
1312 if (type->type == MONO_TYPE_SZARRAY) {
1313 eklass = type->data.klass;
1315 g_assert_not_reached ();
1318 esize = mono_class_native_size (eklass, NULL);
1320 /* create a new array */
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1323 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1324 mono_mb_emit_byte (mb, CEE_STIND_REF);
1326 if (eklass->blittable) {
1327 /* copy the elements */
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_byte (mb, CEE_LDIND_I);
1330 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1331 mono_mb_emit_byte (mb, CEE_ADD);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1334 mono_mb_emit_byte (mb, CEE_PREFIX1);
1335 mono_mb_emit_byte (mb, CEE_CPBLK);
1338 int array_var, src_var, dst_var, index_var;
1339 guint32 label2, label3;
1341 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1342 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1343 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1348 mono_mb_emit_stloc (mb, array_var);
1350 /* save the old src pointer */
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_stloc (mb, src_var);
1353 /* save the old dst pointer */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_stloc (mb, dst_var);
1357 /* Emit marshalling loop */
1358 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1359 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1360 mono_mb_emit_stloc (mb, index_var);
1363 label2 = mono_mb_get_label (mb);
1364 mono_mb_emit_ldloc (mb, index_var);
1365 mono_mb_emit_ldloc (mb, array_var);
1366 mono_mb_emit_byte (mb, CEE_LDLEN);
1367 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1369 /* src is already set */
1372 mono_mb_emit_ldloc (mb, array_var);
1373 mono_mb_emit_ldloc (mb, index_var);
1374 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1375 mono_mb_emit_stloc (mb, 1);
1377 /* Do the conversion */
1378 emit_struct_conv (mb, eklass, TRUE);
1381 mono_mb_emit_add_to_local (mb, index_var, 1);
1383 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1385 mono_mb_patch_branch (mb, label3);
1387 /* restore the old src pointer */
1388 mono_mb_emit_ldloc (mb, src_var);
1389 mono_mb_emit_stloc (mb, 0);
1390 /* restore the old dst pointer */
1391 mono_mb_emit_ldloc (mb, dst_var);
1392 mono_mb_emit_stloc (mb, 1);
1396 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1397 MonoClass *eclass = mono_defaults.char_class;
1399 /* create a new array */
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1402 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1403 mono_mb_emit_byte (mb, CEE_STIND_REF);
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1407 mono_mb_emit_ldloc (mb, 0);
1408 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1409 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1412 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1413 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1414 mono_mb_emit_ldloc (mb, 1);
1415 mono_mb_emit_ldloc (mb, 0);
1416 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1417 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1419 mono_mb_emit_ldloc (mb, 1);
1420 mono_mb_emit_ldloc (mb, 0);
1421 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1423 mono_mb_emit_byte (mb, CEE_STIND_REF);
1425 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1426 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1427 mono_mb_emit_ldloc (mb, 1);
1428 mono_mb_emit_ldloc (mb, 0);
1429 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1430 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1432 mono_mb_emit_ldloc (mb, 1);
1433 mono_mb_emit_ldloc (mb, 0);
1434 mono_mb_emit_icall (mb, mono_string_from_utf16);
1436 mono_mb_emit_byte (mb, CEE_STIND_REF);
1438 case MONO_MARSHAL_CONV_STR_LPTSTR:
1439 mono_mb_emit_ldloc (mb, 1);
1440 mono_mb_emit_ldloc (mb, 0);
1441 mono_mb_emit_byte (mb, CEE_LDIND_I);
1443 mono_mb_emit_icall (mb, mono_string_from_utf16);
1445 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 case MONO_MARSHAL_CONV_STR_LPSTR:
1450 mono_mb_emit_ldloc (mb, 1);
1451 mono_mb_emit_ldloc (mb, 0);
1452 mono_mb_emit_byte (mb, CEE_LDIND_I);
1453 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1454 mono_mb_emit_byte (mb, CEE_STIND_REF);
1456 case MONO_MARSHAL_CONV_STR_LPWSTR:
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_byte (mb, CEE_LDIND_I);
1460 mono_mb_emit_icall (mb, mono_string_from_utf16);
1461 mono_mb_emit_byte (mb, CEE_STIND_REF);
1463 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1464 MonoClass *klass = mono_class_from_mono_type (type);
1465 int src_var, dst_var;
1467 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1468 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1470 /* *dst = new object */
1471 mono_mb_emit_ldloc (mb, 1);
1472 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1473 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1474 mono_mb_emit_byte (mb, CEE_STIND_REF);
1476 /* save the old src pointer */
1477 mono_mb_emit_ldloc (mb, 0);
1478 mono_mb_emit_stloc (mb, src_var);
1479 /* save the old dst pointer */
1480 mono_mb_emit_ldloc (mb, 1);
1481 mono_mb_emit_stloc (mb, dst_var);
1483 /* dst = pointer to newly created object data */
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_byte (mb, CEE_LDIND_I);
1486 mono_mb_emit_icon (mb, sizeof (MonoObject));
1487 mono_mb_emit_byte (mb, CEE_ADD);
1488 mono_mb_emit_stloc (mb, 1);
1490 emit_struct_conv (mb, klass, TRUE);
1492 /* restore the old src pointer */
1493 mono_mb_emit_ldloc (mb, src_var);
1494 mono_mb_emit_stloc (mb, 0);
1495 /* restore the old dst pointer */
1496 mono_mb_emit_ldloc (mb, dst_var);
1497 mono_mb_emit_stloc (mb, 1);
1500 case MONO_MARSHAL_CONV_DEL_FTN: {
1501 MonoClass *klass = mono_class_from_mono_type (type);
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1505 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_byte (mb, CEE_LDIND_I);
1508 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1509 mono_mb_emit_byte (mb, CEE_STIND_REF);
1512 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1513 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1517 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1518 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1519 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1520 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1522 #endif /* DISABLE_COM */
1524 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1526 * Passing SafeHandles as ref does not allow the unmanaged code
1527 * to change the SafeHandle value. If the value is changed,
1528 * we should issue a diagnostic exception (NotSupportedException)
1529 * that informs the user that changes to handles in unmanaged code
1532 * Since we currently have no access to the original
1533 * SafeHandle that was used during the marshalling,
1534 * for now we just ignore this, and ignore/discard any
1535 * changes that might have happened to the handle.
1540 case MONO_MARSHAL_CONV_HANDLEREF: {
1542 * Passing HandleRefs in a struct that is ref()ed does not
1543 * copy the values back to the HandleRef
1548 case MONO_MARSHAL_CONV_STR_BSTR:
1549 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1550 case MONO_MARSHAL_CONV_STR_TBSTR:
1551 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1553 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1555 mono_mb_emit_exception_marshal_directive (mb, msg);
1562 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1565 if (!ind_store_type)
1566 ind_store_type = &dummy;
1567 *ind_store_type = CEE_STIND_I;
1569 case MONO_MARSHAL_CONV_STR_LPWSTR:
1570 return mono_marshal_string_to_utf16;
1571 case MONO_MARSHAL_CONV_LPWSTR_STR:
1572 *ind_store_type = CEE_STIND_REF;
1573 return mono_string_from_utf16;
1574 case MONO_MARSHAL_CONV_LPTSTR_STR:
1575 *ind_store_type = CEE_STIND_REF;
1576 return mono_string_new_wrapper;
1577 case MONO_MARSHAL_CONV_LPSTR_STR:
1578 *ind_store_type = CEE_STIND_REF;
1579 return mono_string_new_wrapper;
1580 case MONO_MARSHAL_CONV_STR_LPTSTR:
1582 return mono_marshal_string_to_utf16;
1584 return mono_string_to_lpstr;
1586 case MONO_MARSHAL_CONV_STR_LPSTR:
1587 return mono_string_to_lpstr;
1588 case MONO_MARSHAL_CONV_STR_BSTR:
1589 return mono_string_to_bstr;
1590 case MONO_MARSHAL_CONV_BSTR_STR:
1591 *ind_store_type = CEE_STIND_REF;
1592 return mono_string_from_bstr;
1593 case MONO_MARSHAL_CONV_STR_TBSTR:
1594 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1595 return mono_string_to_ansibstr;
1596 case MONO_MARSHAL_CONV_SB_LPSTR:
1597 return mono_string_builder_to_utf8;
1598 case MONO_MARSHAL_CONV_SB_LPTSTR:
1600 return mono_string_builder_to_utf16;
1602 return mono_string_builder_to_utf8;
1604 case MONO_MARSHAL_CONV_SB_LPWSTR:
1605 return mono_string_builder_to_utf16;
1606 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1607 return mono_array_to_savearray;
1608 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1609 return mono_array_to_lparray;
1610 case MONO_MARSHAL_FREE_LPARRAY:
1611 return mono_free_lparray;
1612 case MONO_MARSHAL_CONV_DEL_FTN:
1613 return mono_delegate_to_ftnptr;
1614 case MONO_MARSHAL_CONV_FTN_DEL:
1615 *ind_store_type = CEE_STIND_REF;
1616 return mono_ftnptr_to_delegate;
1617 case MONO_MARSHAL_CONV_LPSTR_SB:
1618 *ind_store_type = CEE_STIND_REF;
1619 return mono_string_utf8_to_builder;
1620 case MONO_MARSHAL_CONV_LPTSTR_SB:
1621 *ind_store_type = CEE_STIND_REF;
1623 return mono_string_utf16_to_builder;
1625 return mono_string_utf8_to_builder;
1627 case MONO_MARSHAL_CONV_LPWSTR_SB:
1628 *ind_store_type = CEE_STIND_REF;
1629 return mono_string_utf16_to_builder;
1630 case MONO_MARSHAL_FREE_ARRAY:
1631 return mono_marshal_free_array;
1632 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1633 return mono_string_to_byvalstr;
1634 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1635 return mono_string_to_byvalwstr;
1637 g_assert_not_reached ();
1644 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1650 case MONO_MARSHAL_CONV_BOOL_I4:
1651 mono_mb_emit_ldloc (mb, 1);
1652 mono_mb_emit_ldloc (mb, 0);
1653 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1654 mono_mb_emit_byte (mb, CEE_STIND_I4);
1656 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1660 mono_mb_emit_byte (mb, CEE_NEG);
1661 mono_mb_emit_byte (mb, CEE_STIND_I2);
1663 case MONO_MARSHAL_CONV_STR_LPWSTR:
1664 case MONO_MARSHAL_CONV_STR_LPSTR:
1665 case MONO_MARSHAL_CONV_STR_LPTSTR:
1666 case MONO_MARSHAL_CONV_STR_BSTR:
1667 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1668 case MONO_MARSHAL_CONV_STR_TBSTR: {
1671 /* free space if free == true */
1672 mono_mb_emit_ldloc (mb, 2);
1673 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1674 mono_mb_emit_ldloc (mb, 1);
1675 mono_mb_emit_byte (mb, CEE_LDIND_I);
1676 mono_mb_emit_icall (mb, g_free);
1677 mono_mb_patch_short_branch (mb, pos);
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_ldloc (mb, 0);
1681 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1682 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1683 mono_mb_emit_byte (mb, stind_op);
1686 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1687 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1688 case MONO_MARSHAL_CONV_DEL_FTN:
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1692 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1693 mono_mb_emit_byte (mb, stind_op);
1695 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1696 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1699 mono_mb_emit_ldloc (mb, 1); /* dst */
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1702 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1703 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1706 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1707 MonoClass *eklass = NULL;
1710 if (type->type == MONO_TYPE_SZARRAY) {
1711 eklass = type->data.klass;
1713 g_assert_not_reached ();
1716 if (eklass->valuetype)
1717 esize = mono_class_native_size (eklass, NULL);
1719 esize = sizeof (gpointer);
1721 mono_mb_emit_ldloc (mb, 0);
1722 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1723 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1725 if (eklass->blittable) {
1726 mono_mb_emit_ldloc (mb, 1);
1727 mono_mb_emit_ldloc (mb, 0);
1728 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1729 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1730 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1731 mono_mb_emit_byte (mb, CEE_PREFIX1);
1732 mono_mb_emit_byte (mb, CEE_CPBLK);
1734 int array_var, src_var, dst_var, index_var;
1735 guint32 label2, label3;
1737 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1738 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1739 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1742 mono_mb_emit_ldloc (mb, 0);
1743 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1744 mono_mb_emit_stloc (mb, array_var);
1746 /* save the old src pointer */
1747 mono_mb_emit_ldloc (mb, 0);
1748 mono_mb_emit_stloc (mb, src_var);
1749 /* save the old dst pointer */
1750 mono_mb_emit_ldloc (mb, 1);
1751 mono_mb_emit_stloc (mb, dst_var);
1753 /* Emit marshalling loop */
1754 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1755 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1756 mono_mb_emit_stloc (mb, index_var);
1759 label2 = mono_mb_get_label (mb);
1760 mono_mb_emit_ldloc (mb, index_var);
1761 mono_mb_emit_ldloc (mb, array_var);
1762 mono_mb_emit_byte (mb, CEE_LDLEN);
1763 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1766 mono_mb_emit_ldloc (mb, array_var);
1767 mono_mb_emit_ldloc (mb, index_var);
1768 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1769 mono_mb_emit_stloc (mb, 0);
1771 /* dst is already set */
1773 /* Do the conversion */
1774 emit_struct_conv (mb, eklass, FALSE);
1777 mono_mb_emit_add_to_local (mb, index_var, 1);
1779 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1781 mono_mb_patch_branch (mb, label3);
1783 /* restore the old src pointer */
1784 mono_mb_emit_ldloc (mb, src_var);
1785 mono_mb_emit_stloc (mb, 0);
1786 /* restore the old dst pointer */
1787 mono_mb_emit_ldloc (mb, dst_var);
1788 mono_mb_emit_stloc (mb, 1);
1791 mono_mb_patch_branch (mb, pos);
1794 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1797 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1799 mono_mb_emit_ldloc (mb, 1);
1800 mono_mb_emit_ldloc (mb, 0);
1801 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1802 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1803 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1804 mono_mb_patch_short_branch (mb, pos);
1807 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1808 int src_var, dst_var;
1810 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1811 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1813 mono_mb_emit_ldloc (mb, 0);
1814 mono_mb_emit_byte (mb, CEE_LDIND_I);
1815 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1817 /* save the old src pointer */
1818 mono_mb_emit_ldloc (mb, 0);
1819 mono_mb_emit_stloc (mb, src_var);
1820 /* save the old dst pointer */
1821 mono_mb_emit_ldloc (mb, 1);
1822 mono_mb_emit_stloc (mb, dst_var);
1824 /* src = pointer to object data */
1825 mono_mb_emit_ldloc (mb, 0);
1826 mono_mb_emit_byte (mb, CEE_LDIND_I);
1827 mono_mb_emit_icon (mb, sizeof (MonoObject));
1828 mono_mb_emit_byte (mb, CEE_ADD);
1829 mono_mb_emit_stloc (mb, 0);
1831 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1833 /* restore the old src pointer */
1834 mono_mb_emit_ldloc (mb, src_var);
1835 mono_mb_emit_stloc (mb, 0);
1836 /* restore the old dst pointer */
1837 mono_mb_emit_ldloc (mb, dst_var);
1838 mono_mb_emit_stloc (mb, 1);
1840 mono_mb_patch_branch (mb, pos);
1845 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1846 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1847 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1848 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1850 #endif /* DISABLE_COM */
1852 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_I);
1857 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1858 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1859 mono_mb_patch_branch (mb, pos);
1861 /* Pull the handle field from SafeHandle */
1862 mono_mb_emit_ldloc (mb, 1);
1863 mono_mb_emit_ldloc (mb, 0);
1864 mono_mb_emit_byte (mb, CEE_LDIND_I);
1865 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1866 mono_mb_emit_byte (mb, CEE_LDIND_I);
1867 mono_mb_emit_byte (mb, CEE_STIND_I);
1871 case MONO_MARSHAL_CONV_HANDLEREF: {
1872 mono_mb_emit_ldloc (mb, 1);
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1875 mono_mb_emit_byte (mb, CEE_ADD);
1876 mono_mb_emit_byte (mb, CEE_LDIND_I);
1877 mono_mb_emit_byte (mb, CEE_STIND_I);
1882 g_error ("marshalling conversion %d not implemented", conv);
1888 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1889 MonoMarshalNative string_encoding)
1891 MonoMarshalType *info;
1895 emit_struct_conv(mb, klass->parent, to_object);
1897 info = mono_marshal_load_type_info (klass);
1899 if (info->native_size == 0)
1902 if (klass->blittable) {
1903 int msize = mono_class_value_size (klass, NULL);
1904 g_assert (msize == info->native_size);
1905 mono_mb_emit_ldloc (mb, 1);
1906 mono_mb_emit_ldloc (mb, 0);
1907 mono_mb_emit_icon (mb, msize);
1908 mono_mb_emit_byte (mb, CEE_PREFIX1);
1909 mono_mb_emit_byte (mb, CEE_CPBLK);
1911 mono_mb_emit_add_to_local (mb, 0, msize);
1912 mono_mb_emit_add_to_local (mb, 1, msize);
1916 if (klass != mono_class_try_get_safehandle_class ()) {
1917 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1918 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1919 mono_type_full_name (&klass->byval_arg));
1920 mono_mb_emit_exception_marshal_directive (mb, msg);
1925 for (i = 0; i < info->num_fields; i++) {
1926 MonoMarshalNative ntype;
1927 MonoMarshalConv conv;
1928 MonoType *ftype = info->fields [i].field->type;
1931 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1933 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1936 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1939 msize = klass->instance_size - info->fields [i].field->offset;
1940 usize = info->native_size - info->fields [i].offset;
1942 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1943 usize = info->fields [i + 1].offset - info->fields [i].offset;
1946 if (klass != mono_class_try_get_safehandle_class ()){
1948 * FIXME: Should really check for usize==0 and msize>0, but we apply
1949 * the layout to the managed structure as well.
1952 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1953 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1954 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1955 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1956 "reference field at the same offset as another field.",
1957 mono_type_full_name (&klass->byval_arg));
1962 case MONO_MARSHAL_CONV_NONE: {
1965 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1966 g_assert (!ftype->byref);
1967 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1968 mono_mb_emit_ldloc (mb, 1);
1969 mono_mb_emit_ldloc (mb, 0);
1970 mono_mb_emit_byte (mb, CEE_LDIND_I);
1971 mono_mb_emit_byte (mb, CEE_STIND_I);
1982 case MONO_TYPE_BOOLEAN:
1985 case MONO_TYPE_CHAR:
1991 mono_mb_emit_ldloc (mb, 1);
1992 mono_mb_emit_ldloc (mb, 0);
1993 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1995 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1996 mono_mb_emit_byte (mb, CEE_STIND_I2);
1998 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1999 mono_mb_emit_byte (mb, CEE_STIND_I1);
2002 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2003 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2006 case MONO_TYPE_VALUETYPE: {
2007 int src_var, dst_var;
2009 if (ftype->data.klass->enumtype) {
2010 ftype = mono_class_enum_basetype (ftype->data.klass);
2014 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2015 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2017 /* save the old src pointer */
2018 mono_mb_emit_ldloc (mb, 0);
2019 mono_mb_emit_stloc (mb, src_var);
2020 /* save the old dst pointer */
2021 mono_mb_emit_ldloc (mb, 1);
2022 mono_mb_emit_stloc (mb, dst_var);
2024 emit_struct_conv (mb, ftype->data.klass, to_object);
2026 /* restore the old src pointer */
2027 mono_mb_emit_ldloc (mb, src_var);
2028 mono_mb_emit_stloc (mb, 0);
2029 /* restore the old dst pointer */
2030 mono_mb_emit_ldloc (mb, dst_var);
2031 mono_mb_emit_stloc (mb, 1);
2034 case MONO_TYPE_OBJECT: {
2037 static MonoMethod *variant_clear = NULL;
2038 static MonoMethod *get_object_for_native_variant = NULL;
2041 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2042 if (!get_object_for_native_variant)
2043 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2044 mono_mb_emit_ldloc (mb, 1);
2045 mono_mb_emit_ldloc (mb, 0);
2046 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2047 mono_mb_emit_byte (mb, CEE_STIND_REF);
2049 mono_mb_emit_ldloc (mb, 0);
2050 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2053 static MonoMethod *get_native_variant_for_object = NULL;
2055 if (!get_native_variant_for_object)
2056 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2058 mono_mb_emit_ldloc (mb, 0);
2059 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2060 mono_mb_emit_ldloc (mb, 1);
2061 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2064 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2065 mono_mb_emit_exception_marshal_directive (mb, msg);
2071 g_warning ("marshaling type %02x not implemented", ftype->type);
2072 g_assert_not_reached ();
2077 int src_var, dst_var;
2079 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2080 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2082 /* save the old src pointer */
2083 mono_mb_emit_ldloc (mb, 0);
2084 mono_mb_emit_stloc (mb, src_var);
2085 /* save the old dst pointer */
2086 mono_mb_emit_ldloc (mb, 1);
2087 mono_mb_emit_stloc (mb, dst_var);
2090 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2092 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2094 /* restore the old src pointer */
2095 mono_mb_emit_ldloc (mb, src_var);
2096 mono_mb_emit_stloc (mb, 0);
2097 /* restore the old dst pointer */
2098 mono_mb_emit_ldloc (mb, dst_var);
2099 mono_mb_emit_stloc (mb, 1);
2104 mono_mb_emit_add_to_local (mb, 0, usize);
2105 mono_mb_emit_add_to_local (mb, 1, msize);
2107 mono_mb_emit_add_to_local (mb, 0, msize);
2108 mono_mb_emit_add_to_local (mb, 1, usize);
2114 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2116 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2120 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2122 /* Call DestroyStructure */
2123 /* FIXME: Only do this if needed */
2124 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2125 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2126 mono_mb_emit_ldloc (mb, struct_var);
2127 mono_mb_emit_icall (mb, mono_struct_delete_old);
2131 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2133 int pos_noabort, pos_noex;
2135 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2136 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2137 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2138 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2140 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2141 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2143 mono_mb_emit_icall (mb, checkpoint_func);
2144 /* Throw the exception returned by the checkpoint function, if any */
2145 mono_mb_emit_byte (mb, CEE_DUP);
2146 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2147 mono_mb_emit_byte (mb, CEE_THROW);
2148 mono_mb_patch_branch (mb, pos_noex);
2149 mono_mb_emit_byte (mb, CEE_POP);
2151 mono_mb_patch_branch (mb, pos_noabort);
2155 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2157 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2160 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2164 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2166 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2170 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2172 emit_thread_interrupt_checkpoint (mb);
2176 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2178 emit_thread_force_interrupt_checkpoint (mb);
2181 #endif /* DISABLE_JIT */
2183 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2184 static MonoAsyncResult *
2185 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2188 MonoMulticastDelegate *mcast_delegate;
2192 g_assert (delegate);
2193 mcast_delegate = (MonoMulticastDelegate *) delegate;
2194 if (mcast_delegate->delegates != NULL) {
2195 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2199 #ifndef DISABLE_REMOTING
2200 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2201 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2202 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2203 /* If the target is a proxy, make a direct call. Is proxy's work
2204 // to make the call asynchronous.
2206 MonoMethodMessage *msg;
2207 MonoDelegate *async_callback;
2209 MonoAsyncResult *ares;
2211 MonoArray *out_args;
2212 method = delegate->method;
2214 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2215 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2216 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2217 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2218 MONO_OBJECT_SETREF (msg, async_result, ares);
2219 msg->call_type = CallType_BeginInvoke;
2222 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2223 if (!mono_error_ok (&error)) {
2224 mono_error_set_pending_exception (&error);
2228 mono_set_pending_exception ((MonoException *) exc);
2234 klass = delegate->object.vtable->klass;
2236 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2238 method = mono_get_delegate_invoke (klass);
2241 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2242 mono_error_set_pending_exception (&error);
2249 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2251 int i, params_var, tmp_var;
2253 /* allocate local (pointer) *params[] */
2254 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2255 /* allocate local (pointer) tmp */
2256 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2258 /* alloate space on stack to store an array of pointers to the arguments */
2259 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2260 mono_mb_emit_byte (mb, CEE_PREFIX1);
2261 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2262 mono_mb_emit_stloc (mb, params_var);
2265 mono_mb_emit_ldloc (mb, params_var);
2266 mono_mb_emit_stloc (mb, tmp_var);
2268 if (save_this && sig->hasthis) {
2269 mono_mb_emit_ldloc (mb, tmp_var);
2270 mono_mb_emit_ldarg_addr (mb, 0);
2271 mono_mb_emit_byte (mb, CEE_STIND_I);
2272 /* tmp = tmp + sizeof (gpointer) */
2273 if (sig->param_count)
2274 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2278 for (i = 0; i < sig->param_count; i++) {
2279 mono_mb_emit_ldloc (mb, tmp_var);
2280 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2281 mono_mb_emit_byte (mb, CEE_STIND_I);
2282 /* tmp = tmp + sizeof (gpointer) */
2283 if (i < (sig->param_count - 1))
2284 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2290 #endif /* DISABLE_JIT */
2293 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2297 GString *res = g_string_new ("");
2300 g_string_append (res, prefix);
2301 g_string_append_c (res, '_');
2304 mono_type_get_desc (res, sig->ret, FALSE);
2307 g_string_append (res, "__this__");
2309 for (i = 0; i < sig->param_count; ++i) {
2310 g_string_append_c (res, '_');
2311 mono_type_get_desc (res, sig->params [i], FALSE);
2314 g_string_free (res, FALSE);
2319 * mono_marshal_get_string_encoding:
2321 * Return the string encoding which should be used for a given parameter.
2323 static MonoMarshalNative
2324 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2326 /* First try the parameter marshal info */
2328 if (spec->native == MONO_NATIVE_LPARRAY) {
2329 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2330 return spec->data.array_data.elem_type;
2333 return spec->native;
2337 return MONO_NATIVE_LPSTR;
2339 /* Then try the method level marshal info */
2340 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2341 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2342 return MONO_NATIVE_LPSTR;
2343 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2344 return MONO_NATIVE_LPWSTR;
2345 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2347 return MONO_NATIVE_LPWSTR;
2349 return MONO_NATIVE_LPSTR;
2352 return MONO_NATIVE_LPSTR;
2356 static MonoMarshalConv
2357 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2359 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2362 case MONO_NATIVE_LPWSTR:
2363 return MONO_MARSHAL_CONV_STR_LPWSTR;
2364 case MONO_NATIVE_LPSTR:
2365 case MONO_NATIVE_VBBYREFSTR:
2366 return MONO_MARSHAL_CONV_STR_LPSTR;
2367 case MONO_NATIVE_LPTSTR:
2368 return MONO_MARSHAL_CONV_STR_LPTSTR;
2369 case MONO_NATIVE_BSTR:
2370 return MONO_MARSHAL_CONV_STR_BSTR;
2372 return MONO_MARSHAL_CONV_INVALID;
2376 static MonoMarshalConv
2377 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2379 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2382 case MONO_NATIVE_LPWSTR:
2383 return MONO_MARSHAL_CONV_SB_LPWSTR;
2385 case MONO_NATIVE_LPSTR:
2386 return MONO_MARSHAL_CONV_SB_LPSTR;
2388 case MONO_NATIVE_LPTSTR:
2389 return MONO_MARSHAL_CONV_SB_LPTSTR;
2392 return MONO_MARSHAL_CONV_INVALID;
2396 static MonoMarshalConv
2397 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2399 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2404 case MONO_NATIVE_LPWSTR:
2406 return MONO_MARSHAL_CONV_LPWSTR_STR;
2407 case MONO_NATIVE_LPSTR:
2408 case MONO_NATIVE_VBBYREFSTR:
2409 return MONO_MARSHAL_CONV_LPSTR_STR;
2410 case MONO_NATIVE_LPTSTR:
2411 return MONO_MARSHAL_CONV_LPTSTR_STR;
2412 case MONO_NATIVE_BSTR:
2413 return MONO_MARSHAL_CONV_BSTR_STR;
2415 return MONO_MARSHAL_CONV_INVALID;
2419 static MonoMarshalConv
2420 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2422 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2427 case MONO_NATIVE_LPWSTR:
2429 * mono_string_builder_to_utf16 does not allocate a
2430 * new buffer, so no need to free it.
2433 return MONO_MARSHAL_CONV_LPWSTR_SB;
2434 case MONO_NATIVE_LPSTR:
2435 return MONO_MARSHAL_CONV_LPSTR_SB;
2437 case MONO_NATIVE_LPTSTR:
2438 return MONO_MARSHAL_CONV_LPTSTR_SB;
2441 return MONO_MARSHAL_CONV_INVALID;
2446 * Return whenever a field of a native structure or an array member needs to
2450 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2452 MonoMarshalNative encoding;
2455 case MONO_TYPE_VALUETYPE:
2456 /* FIXME: Optimize this */
2458 case MONO_TYPE_OBJECT:
2459 case MONO_TYPE_CLASS:
2460 if (t->data.klass == mono_defaults.stringbuilder_class) {
2462 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2466 case MONO_TYPE_STRING:
2467 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2468 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2475 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2478 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2481 mono_marshal_lock ();
2484 g_hash_table_new (hash_func, equal_func);
2485 mono_memory_barrier ();
2488 mono_marshal_unlock ();
2494 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2496 return get_cache (var, hash_func, equal_func);
2500 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2504 mono_marshal_lock ();
2505 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2506 mono_marshal_unlock ();
2513 * Create a MonoMethod from MB, set INFO as wrapper info.
2516 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2517 int max_stack, WrapperInfo *info)
2521 res = mono_mb_create_method (mb, sig, max_stack);
2523 mono_marshal_set_wrapper_info (res, info);
2527 /* Create the method from the builder and place it in the cache */
2529 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2530 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2531 int max_stack, WrapperInfo *info, gboolean *out_found)
2538 mono_marshal_lock ();
2539 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2540 mono_marshal_unlock ();
2543 newm = mono_mb_create_method (mb, sig, max_stack);
2544 mono_marshal_lock ();
2545 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2548 g_hash_table_insert (cache, key, res);
2549 mono_marshal_set_wrapper_info (res, info);
2550 mono_marshal_unlock ();
2554 mono_marshal_unlock ();
2555 mono_free_method (newm);
2563 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2564 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2567 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2571 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2574 int wrapper_type = wrapper->wrapper_type;
2577 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2580 info = mono_marshal_get_wrapper_info (wrapper);
2582 switch (wrapper_type) {
2583 case MONO_WRAPPER_REMOTING_INVOKE:
2584 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2585 case MONO_WRAPPER_XDOMAIN_INVOKE:
2586 m = info->d.remoting.method;
2587 if (wrapper->is_inflated) {
2591 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2592 * contains an uninflated method.
2594 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2595 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2599 case MONO_WRAPPER_SYNCHRONIZED:
2600 m = info->d.synchronized.method;
2601 if (wrapper->is_inflated) {
2604 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2605 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2609 case MONO_WRAPPER_UNBOX:
2610 return info->d.unbox.method;
2611 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2612 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2613 return info->d.managed_to_native.method;
2616 case MONO_WRAPPER_RUNTIME_INVOKE:
2617 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2618 return info->d.runtime_invoke.method;
2627 * mono_marshal_get_wrapper_info:
2629 * Retrieve the WrapperInfo structure associated with WRAPPER.
2632 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2634 g_assert (wrapper->wrapper_type);
2636 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2640 * mono_marshal_set_wrapper_info:
2642 * Set the WrapperInfo structure associated with the wrapper
2643 * method METHOD to INFO.
2646 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2650 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2653 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2658 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2662 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2663 info->subtype = subtype;
2668 * get_wrapper_target_class:
2670 * Return the class where a wrapper method should be placed.
2673 get_wrapper_target_class (MonoImage *image)
2680 * - can't put all wrappers into an mscorlib class, because they reference
2681 * metadata (signature) so they should be put into the same image as the
2682 * method they wrap, so they are unloaded together.
2683 * - putting them into a class with a type initalizer could cause the
2684 * initializer to be executed which can be a problem if the wrappers are
2686 * - putting them into an inflated class can cause problems if the the
2687 * class is deleted because it references an image which is unloaded.
2688 * To avoid these problems, we put the wrappers into the <Module> class of
2691 if (image_is_dynamic (image)) {
2692 klass = ((MonoDynamicImage*)image)->wrappers_type;
2694 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2695 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2703 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2704 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2708 * check_generic_wrapper_cache:
2710 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2711 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2712 * generic method definition.
2715 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2718 MonoMethod *inst, *def;
2719 MonoGenericContext *ctx;
2721 g_assert (orig_method->is_inflated);
2722 ctx = mono_method_get_context (orig_method);
2725 * Look for the instance
2727 res = mono_marshal_find_in_cache (cache, key);
2732 * Look for the definition
2734 def = mono_marshal_find_in_cache (cache, def_key);
2737 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2738 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2740 mono_memory_barrier ();
2741 mono_marshal_lock ();
2742 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2744 g_hash_table_insert (cache, key, inst);
2747 mono_marshal_unlock ();
2754 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2757 MonoMethod *inst, *res;
2760 * We use the same cache for the generic definition and the instances.
2762 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2763 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2764 mono_memory_barrier ();
2765 mono_marshal_lock ();
2766 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2768 g_hash_table_insert (cache, key, inst);
2771 mono_marshal_unlock ();
2776 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2780 MonoMethod *inst, *def;
2783 * Look for the instance
2785 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2790 * Look for the definition
2792 def = mono_marshal_find_in_cache (cache, def_method->klass);
2794 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2795 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2798 mono_memory_barrier ();
2799 mono_marshal_lock ();
2800 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2802 g_hash_table_insert (cache, orig_method->klass, inst);
2805 mono_marshal_unlock ();
2812 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2815 MonoMethod *inst, *res;
2818 * We use the same cache for the generic definition and the instances.
2820 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2821 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2823 mono_memory_barrier ();
2824 mono_marshal_lock ();
2825 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2827 g_hash_table_insert (cache, orig_method->klass, inst);
2830 mono_marshal_unlock ();
2835 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2837 MonoMethodSignature *sig;
2838 MonoMethodBuilder *mb;
2843 MonoGenericContext *ctx = NULL;
2844 MonoMethod *orig_method = NULL;
2846 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2847 !strcmp (method->name, "BeginInvoke"));
2850 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2852 if (method->is_inflated) {
2853 orig_method = method;
2854 ctx = &((MonoMethodInflated*)method)->context;
2855 method = ((MonoMethodInflated*)method)->declaring;
2858 sig = mono_signature_no_pinvoke (method);
2864 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2865 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2869 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2870 (GHashFunc)mono_signature_hash,
2871 (GCompareFunc)mono_metadata_signature_equal);
2872 if ((res = mono_marshal_find_in_cache (cache, sig)))
2876 g_assert (sig->hasthis);
2878 name = mono_signature_to_name (sig, "begin_invoke");
2880 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2882 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2886 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2888 mono_mb_emit_ldarg (mb, 0);
2889 mono_mb_emit_ldloc (mb, params_var);
2890 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2891 mono_mb_emit_byte (mb, CEE_RET);
2896 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2897 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2899 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2906 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2908 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2911 MonoDomain *domain = mono_domain_get ();
2912 MonoAsyncResult *ares;
2913 MonoMethod *method = NULL;
2914 MonoMethodSignature *sig;
2915 MonoMethodMessage *msg;
2916 MonoObject *res, *exc;
2917 MonoArray *out_args;
2920 g_assert (delegate);
2922 if (!delegate->method_info) {
2923 g_assert (delegate->method);
2924 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2925 if (!mono_error_ok (&error)) {
2926 mono_error_set_pending_exception (&error);
2929 MONO_OBJECT_SETREF (delegate, method_info, rm);
2932 if (!delegate->method_info || !delegate->method_info->method)
2933 g_assert_not_reached ();
2935 klass = delegate->object.vtable->klass;
2937 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2938 g_assert (method != NULL);
2940 sig = mono_signature_no_pinvoke (method);
2942 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2944 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2946 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."));
2950 if (ares->async_delegate != (MonoObject*)delegate) {
2951 mono_set_pending_exception (mono_get_exception_invalid_operation (
2952 "The IAsyncResult object provided does not match this delegate."));
2956 #ifndef DISABLE_REMOTING
2957 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2958 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2959 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2960 if (!mono_error_ok (&error)) {
2961 mono_error_set_pending_exception (&error);
2964 mono_message_init (domain, msg, delegate->method_info, NULL);
2965 msg->call_type = CallType_EndInvoke;
2966 MONO_OBJECT_SETREF (msg, async_result, ares);
2967 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2968 if (!mono_error_ok (&error)) {
2969 mono_error_set_pending_exception (&error);
2975 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2979 if (((MonoException*)exc)->stack_trace) {
2980 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2982 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2984 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2987 mono_set_pending_exception ((MonoException*)exc);
2990 mono_method_return_message_restore (method, params, out_args, &error);
2991 mono_error_set_pending_exception (&error);
2998 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3000 MonoType *t = mono_type_get_underlying_type (return_type);
3002 if (return_type->byref)
3003 return_type = &mono_defaults.int_class->byval_arg;
3006 case MONO_TYPE_VOID:
3007 g_assert_not_reached ();
3010 case MONO_TYPE_STRING:
3011 case MONO_TYPE_CLASS:
3012 case MONO_TYPE_OBJECT:
3013 case MONO_TYPE_ARRAY:
3014 case MONO_TYPE_SZARRAY:
3018 case MONO_TYPE_BOOLEAN:
3021 case MONO_TYPE_CHAR:
3031 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3032 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3034 case MONO_TYPE_GENERICINST:
3035 if (!mono_type_generic_inst_is_valuetype (t))
3038 case MONO_TYPE_VALUETYPE: {
3039 MonoClass *klass = mono_class_from_mono_type (return_type);
3040 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3041 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3045 case MONO_TYPE_MVAR: {
3046 MonoClass *klass = mono_class_from_mono_type (return_type);
3047 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3051 g_warning ("type 0x%x not handled", return_type->type);
3052 g_assert_not_reached ();
3055 mono_mb_emit_byte (mb, CEE_RET);
3058 #endif /* DISABLE_JIT */
3061 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3063 MonoMethodSignature *sig;
3064 MonoMethodBuilder *mb;
3069 MonoGenericContext *ctx = NULL;
3070 MonoMethod *orig_method = NULL;
3072 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3073 !strcmp (method->name, "EndInvoke"));
3076 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3078 if (method->is_inflated) {
3079 orig_method = method;
3080 ctx = &((MonoMethodInflated*)method)->context;
3081 method = ((MonoMethodInflated*)method)->declaring;
3084 sig = mono_signature_no_pinvoke (method);
3090 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3091 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3095 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3096 (GHashFunc)mono_signature_hash,
3097 (GCompareFunc)mono_metadata_signature_equal);
3098 if ((res = mono_marshal_find_in_cache (cache, sig)))
3102 g_assert (sig->hasthis);
3104 name = mono_signature_to_name (sig, "end_invoke");
3106 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3108 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3112 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3114 mono_mb_emit_ldarg (mb, 0);
3115 mono_mb_emit_ldloc (mb, params_var);
3116 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3118 if (sig->ret->type == MONO_TYPE_VOID) {
3119 mono_mb_emit_byte (mb, CEE_POP);
3120 mono_mb_emit_byte (mb, CEE_RET);
3122 mono_mb_emit_restore_result (mb, sig->ret);
3127 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3128 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3130 res = mono_mb_create_and_cache (cache, sig,
3131 mb, sig, sig->param_count + 16);
3140 MonoMethodSignature *sig;
3142 } SignaturePointerPair;
3145 signature_pointer_pair_hash (gconstpointer data)
3147 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3149 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3153 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3155 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3156 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3160 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3162 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3164 return pair->pointer == user_data;
3168 free_signature_pointer_pair (SignaturePointerPair *pair)
3174 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3176 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3178 MonoMethodBuilder *mb;
3181 gpointer cache_key = NULL;
3182 SignaturePointerPair key;
3183 SignaturePointerPair *new_key;
3184 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3185 int pos0, pos1, pos2;
3187 MonoClass *target_class = NULL;
3188 gboolean closed_over_null = FALSE;
3189 MonoGenericContext *ctx = NULL;
3190 MonoGenericContainer *container = NULL;
3191 MonoMethod *orig_method = NULL;
3193 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3197 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3198 !strcmp (method->name, "Invoke"));
3200 invoke_sig = sig = mono_signature_no_pinvoke (method);
3203 * If the delegate target is null, and the target method is not static, a virtual
3204 * call is made to that method with the first delegate argument as this. This is
3205 * a non-documented .NET feature.
3208 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3209 if (target_method->is_inflated) {
3211 MonoType *target_type;
3213 g_assert (method->signature->hasthis);
3214 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3215 mono_method_get_context (method), &error);
3216 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3217 target_class = mono_class_from_mono_type (target_type);
3219 target_class = target_method->klass;
3222 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3225 if (static_method_with_first_arg_bound) {
3226 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3227 g_assert (!callvirt);
3228 invoke_sig = mono_method_signature (target_method);
3232 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3234 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3235 orig_method = method;
3236 ctx = &((MonoMethodInflated*)method)->context;
3237 method = ((MonoMethodInflated*)method)->declaring;
3239 container = mono_method_get_generic_container (method);
3241 container = method->klass->generic_container;
3242 g_assert (container);
3244 invoke_sig = sig = mono_signature_no_pinvoke (method);
3251 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3252 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3255 cache_key = method->klass;
3256 } else if (static_method_with_first_arg_bound) {
3257 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3258 (GHashFunc)mono_signature_hash,
3259 (GCompareFunc)mono_metadata_signature_equal);
3261 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3263 res = mono_marshal_find_in_cache (cache, invoke_sig);
3266 cache_key = invoke_sig;
3267 } else if (callvirt) {
3268 GHashTable **cache_ptr;
3270 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3272 /* We need to cache the signature+method pair */
3273 mono_marshal_lock ();
3275 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3277 key.sig = invoke_sig;
3278 key.pointer = target_method;
3279 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3280 mono_marshal_unlock ();
3284 // Inflated methods should not be in this cache because it's not stored on the imageset.
3285 g_assert (!method->is_inflated);
3286 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3287 (GHashFunc)mono_signature_hash,
3288 (GCompareFunc)mono_metadata_signature_equal);
3289 res = mono_marshal_find_in_cache (cache, sig);
3295 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3296 static_sig->hasthis = 0;
3297 if (!static_method_with_first_arg_bound)
3298 invoke_sig = static_sig;
3300 if (static_method_with_first_arg_bound)
3301 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3302 else if (closed_over_null)
3303 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3305 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3307 name = mono_signature_to_name (invoke_sig, "invoke");
3309 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3311 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3315 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3317 /* allocate local 0 (object) */
3318 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3319 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3320 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3321 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3322 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3325 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3327 g_assert (sig->hasthis);
3330 * {type: sig->ret} res;
3331 * if (delegates == null) {
3332 * return this.<target> ( args .. );
3334 * int i = 0, len = this.delegates.Length;
3336 * res = this.delegates [i].Invoke ( args .. );
3337 * } while (++i < len);
3342 /* this wrapper can be used in unmanaged-managed transitions */
3343 emit_thread_interrupt_checkpoint (mb);
3345 /* delegates = this.delegates */
3346 mono_mb_emit_ldarg (mb, 0);
3347 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3348 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3349 mono_mb_emit_stloc (mb, local_delegates);
3352 /* if (delegates == null) */
3353 mono_mb_emit_ldloc (mb, local_delegates);
3354 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3356 /* return target.<target_method|method_ptr> ( args .. ); */
3358 /* target = d.target; */
3359 mono_mb_emit_ldarg (mb, 0);
3360 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3361 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3362 mono_mb_emit_stloc (mb, local_target);
3364 /*static methods with bound first arg can have null target and still be bound*/
3365 if (!static_method_with_first_arg_bound) {
3366 /* if target != null */
3367 mono_mb_emit_ldloc (mb, local_target);
3368 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3370 /* then call this->method_ptr nonstatic */
3373 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3375 mono_mb_emit_ldloc (mb, local_target);
3376 for (i = 0; i < sig->param_count; ++i)
3377 mono_mb_emit_ldarg (mb, i + 1);
3378 mono_mb_emit_ldarg (mb, 0);
3379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3380 mono_mb_emit_byte (mb, CEE_LDIND_I);
3381 mono_mb_emit_ldarg (mb, 0);
3382 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3383 mono_mb_emit_byte (mb, CEE_LDIND_I);
3384 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3385 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3386 mono_mb_emit_byte (mb, CEE_RET);
3389 /* else [target == null] call this->method_ptr static */
3390 mono_mb_patch_branch (mb, pos0);
3394 if (!closed_over_null) {
3395 if (target_class->valuetype) {
3396 mono_mb_emit_ldarg (mb, 1);
3397 for (i = 1; i < sig->param_count; ++i)
3398 mono_mb_emit_ldarg (mb, i + 1);
3399 mono_mb_emit_op (mb, CEE_CALL, target_method);
3401 mono_mb_emit_ldarg (mb, 1);
3402 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3403 for (i = 1; i < sig->param_count; ++i)
3404 mono_mb_emit_ldarg (mb, i + 1);
3405 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3408 mono_mb_emit_byte (mb, CEE_LDNULL);
3409 for (i = 0; i < sig->param_count; ++i)
3410 mono_mb_emit_ldarg (mb, i + 1);
3411 mono_mb_emit_op (mb, CEE_CALL, target_method);
3414 if (static_method_with_first_arg_bound) {
3415 mono_mb_emit_ldloc (mb, local_target);
3416 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3417 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3419 for (i = 0; i < sig->param_count; ++i)
3420 mono_mb_emit_ldarg (mb, i + 1);
3421 mono_mb_emit_ldarg (mb, 0);
3422 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3423 mono_mb_emit_byte (mb, CEE_LDIND_I);
3424 mono_mb_emit_ldarg (mb, 0);
3425 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3426 mono_mb_emit_byte (mb, CEE_LDIND_I);
3427 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3428 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3431 mono_mb_emit_byte (mb, CEE_RET);
3433 /* else [delegates != null] */
3434 mono_mb_patch_branch (mb, pos2);
3436 /* len = delegates.Length; */
3437 mono_mb_emit_ldloc (mb, local_delegates);
3438 mono_mb_emit_byte (mb, CEE_LDLEN);
3439 mono_mb_emit_byte (mb, CEE_CONV_I4);
3440 mono_mb_emit_stloc (mb, local_len);
3443 mono_mb_emit_icon (mb, 0);
3444 mono_mb_emit_stloc (mb, local_i);
3446 pos1 = mono_mb_get_label (mb);
3448 /* d = delegates [i]; */
3449 mono_mb_emit_ldloc (mb, local_delegates);
3450 mono_mb_emit_ldloc (mb, local_i);
3451 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3452 mono_mb_emit_stloc (mb, local_d);
3454 /* res = d.Invoke ( args .. ); */
3455 mono_mb_emit_ldloc (mb, local_d);
3456 for (i = 0; i < sig->param_count; i++)
3457 mono_mb_emit_ldarg (mb, i + 1);
3459 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3462 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3463 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3466 mono_mb_emit_stloc (mb, local_res);
3469 mono_mb_emit_add_to_local (mb, local_i, 1);
3472 mono_mb_emit_ldloc (mb, local_i);
3473 mono_mb_emit_ldloc (mb, local_len);
3474 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3478 mono_mb_emit_ldloc (mb, local_res);
3479 mono_mb_emit_byte (mb, CEE_RET);
3481 mb->skip_visibility = 1;
3482 #endif /* DISABLE_JIT */
3484 info = mono_wrapper_info_create (mb, subtype);
3489 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3490 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3491 } else if (callvirt) {
3492 new_key = g_new0 (SignaturePointerPair, 1);
3495 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3499 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3503 /* mono_method_print_code (res); */
3509 * the returned method invokes all methods in a multicast delegate.
3512 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3514 gboolean callvirt = FALSE;
3515 gboolean static_method_with_first_arg_bound = FALSE;
3516 MonoMethod *target_method = NULL;
3517 MonoMethodSignature *sig;
3519 sig = mono_signature_no_pinvoke (method);
3521 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3523 target_method = del->method;
3526 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3527 static_method_with_first_arg_bound = TRUE;
3528 target_method = del->method;
3531 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3535 MonoMethodSignature *ctor_sig;
3536 MonoMethodSignature *sig;
3539 /* protected by the marshal lock, contains CtorSigPair pointers */
3540 static GSList *strsig_list = NULL;
3542 static MonoMethodSignature *
3543 lookup_string_ctor_signature (MonoMethodSignature *sig)
3545 MonoMethodSignature *callsig;
3549 mono_marshal_lock ();
3551 for (item = strsig_list; item; item = item->next) {
3552 cs = (CtorSigPair *)item->data;
3553 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3554 * because it is lock-free.
3556 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3561 mono_marshal_unlock ();
3565 static MonoMethodSignature *
3566 add_string_ctor_signature (MonoMethod *method)
3568 MonoMethodSignature *callsig;
3571 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3572 callsig->ret = &mono_defaults.string_class->byval_arg;
3573 cs = g_new (CtorSigPair, 1);
3575 cs->ctor_sig = mono_method_signature (method);
3577 mono_marshal_lock ();
3578 strsig_list = g_slist_prepend (strsig_list, cs);
3579 mono_marshal_unlock ();
3584 * mono_marshal_get_string_ctor_signature:
3586 * Return the modified signature used by string ctors (they return the newly created
3589 MonoMethodSignature*
3590 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3592 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3594 sig = add_string_ctor_signature (method);
3600 get_runtime_invoke_type (MonoType *t, gboolean ret)
3603 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3605 /* Can't share this with 'I' as that needs another indirection */
3606 return &mono_defaults.int_class->this_arg;
3609 if (MONO_TYPE_IS_REFERENCE (t))
3610 return &mono_defaults.object_class->byval_arg;
3613 /* The result needs to be boxed */
3618 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3621 return &mono_defaults.sbyte_class->byval_arg;
3623 return &mono_defaults.int16_class->byval_arg;
3625 return &mono_defaults.int32_class->byval_arg;
3628 return &mono_defaults.int64_class->byval_arg;
3629 case MONO_TYPE_BOOLEAN:
3630 return &mono_defaults.byte_class->byval_arg;
3631 case MONO_TYPE_CHAR:
3632 return &mono_defaults.uint16_class->byval_arg;
3634 return &mono_defaults.int_class->byval_arg;
3635 case MONO_TYPE_VALUETYPE:
3636 if (t->data.klass->enumtype) {
3637 t = mono_class_enum_basetype (t->data.klass);
3647 * mono_marshal_get_runtime_invoke_sig:
3649 * Return a common signature used for sharing runtime invoke wrappers.
3651 static MonoMethodSignature*
3652 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3654 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3657 res->generic_param_count = 0;
3658 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3659 for (i = 0; i < res->param_count; ++i)
3660 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3666 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3668 /* Can't share wrappers which return a vtype since it needs to be boxed */
3669 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))
3672 return mono_metadata_signature_equal (sig1, sig2);
3680 * Emit the call to the wrapper method from a runtime invoke wrapper.
3683 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3684 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3686 gboolean virtual_, gboolean need_direct_wrapper)
3688 static MonoString *string_dummy = NULL;
3690 int *tmp_nullable_locals;
3691 gboolean void_ret = FALSE;
3692 gboolean string_ctor = method && method->string_ctor;
3694 /* to make it work with our special string constructors */
3695 if (!string_dummy) {
3696 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3697 string_dummy = mono_string_new_wrapper ("dummy");
3701 g_assert (sig->hasthis);
3702 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3707 if (mono_gc_is_moving ()) {
3708 mono_mb_emit_ptr (mb, &string_dummy);
3709 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3711 mono_mb_emit_ptr (mb, string_dummy);
3714 mono_mb_emit_ldarg (mb, 0);
3718 tmp_nullable_locals = g_new0 (int, sig->param_count);
3720 for (i = 0; i < sig->param_count; i++) {
3721 MonoType *t = sig->params [i];
3724 mono_mb_emit_ldarg (mb, 1);
3726 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3727 mono_mb_emit_byte (mb, CEE_ADD);
3731 mono_mb_emit_byte (mb, CEE_LDIND_I);
3732 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3733 * So to make this work we unbox it to a local variablee and push a reference to that.
3735 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3736 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3738 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3739 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3740 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3745 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3746 type = sig->params [i]->type;
3750 case MONO_TYPE_BOOLEAN:
3754 case MONO_TYPE_CHAR:
3763 mono_mb_emit_byte (mb, CEE_LDIND_I);
3764 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3766 case MONO_TYPE_STRING:
3767 case MONO_TYPE_CLASS:
3768 case MONO_TYPE_ARRAY:
3770 case MONO_TYPE_SZARRAY:
3771 case MONO_TYPE_OBJECT:
3772 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3774 case MONO_TYPE_GENERICINST:
3775 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3776 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3781 case MONO_TYPE_VALUETYPE:
3782 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3783 type = mono_class_enum_basetype (t->data.klass)->type;
3786 mono_mb_emit_byte (mb, CEE_LDIND_I);
3787 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3788 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3789 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3790 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3792 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3796 g_assert_not_reached ();
3801 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3802 } else if (need_direct_wrapper) {
3803 mono_mb_emit_op (mb, CEE_CALL, method);
3805 mono_mb_emit_ldarg (mb, 3);
3806 mono_mb_emit_calli (mb, callsig);
3809 if (sig->ret->byref) {
3811 g_assert_not_reached ();
3814 switch (sig->ret->type) {
3815 case MONO_TYPE_VOID:
3819 case MONO_TYPE_BOOLEAN:
3820 case MONO_TYPE_CHAR:
3833 case MONO_TYPE_VALUETYPE:
3834 case MONO_TYPE_TYPEDBYREF:
3835 case MONO_TYPE_GENERICINST:
3836 /* box value types */
3837 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3839 case MONO_TYPE_STRING:
3840 case MONO_TYPE_CLASS:
3841 case MONO_TYPE_ARRAY:
3842 case MONO_TYPE_SZARRAY:
3843 case MONO_TYPE_OBJECT:
3847 /* The result is an IntPtr */
3848 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3851 g_assert_not_reached ();
3855 mono_mb_emit_stloc (mb, loc_res);
3857 /* Convert back nullable-byref arguments */
3858 for (i = 0; i < sig->param_count; i++) {
3859 MonoType *t = sig->params [i];
3862 * Box the result and put it back into the array, the caller will have
3863 * to obtain it from there.
3865 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3866 mono_mb_emit_ldarg (mb, 1);
3867 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3868 mono_mb_emit_byte (mb, CEE_ADD);
3870 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3871 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3873 mono_mb_emit_byte (mb, CEE_STIND_REF);
3877 g_free (tmp_nullable_locals);
3881 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3882 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3883 gboolean virtual_, gboolean need_direct_wrapper)
3886 MonoExceptionClause *clause;
3887 int loc_res, loc_exc;
3889 /* The wrapper looks like this:
3895 * } catch (Exception e) {
3903 /* allocate local 0 (object) tmp */
3904 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3905 /* allocate local 1 (object) exc */
3906 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3908 /* *exc is assumed to be initialized to NULL by the caller */
3910 mono_mb_emit_byte (mb, CEE_LDARG_2);
3911 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3916 labels [1] = mono_mb_get_label (mb);
3917 emit_thread_force_interrupt_checkpoint (mb);
3918 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3920 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3922 /* Add a try clause around the call */
3923 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3924 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3925 clause->data.catch_class = mono_defaults.exception_class;
3926 clause->try_offset = labels [1];
3927 clause->try_len = mono_mb_get_label (mb) - labels [1];
3929 clause->handler_offset = mono_mb_get_label (mb);
3932 mono_mb_emit_stloc (mb, loc_exc);
3933 mono_mb_emit_byte (mb, CEE_LDARG_2);
3934 mono_mb_emit_ldloc (mb, loc_exc);
3935 mono_mb_emit_byte (mb, CEE_STIND_REF);
3937 mono_mb_emit_branch (mb, CEE_LEAVE);
3939 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3941 mono_mb_set_clauses (mb, 1, clause);
3943 mono_mb_patch_branch (mb, labels [2]);
3944 mono_mb_emit_ldloc (mb, loc_res);
3945 mono_mb_emit_byte (mb, CEE_RET);
3950 mono_mb_patch_branch (mb, labels [0]);
3951 emit_thread_force_interrupt_checkpoint (mb);
3952 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3954 mono_mb_emit_ldloc (mb, 0);
3955 mono_mb_emit_byte (mb, CEE_RET);
3960 * generates IL code for the runtime invoke function
3961 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3963 * we also catch exceptions if exc != null
3964 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3965 * it means that the compiled code for METHOD does not have to be looked up
3966 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3967 * its METHOD argument.
3970 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3972 MonoMethodSignature *sig, *csig, *callsig;
3973 MonoMethodBuilder *mb;
3974 GHashTable *cache = NULL;
3975 MonoClass *target_klass;
3976 MonoMethod *res = NULL;
3977 static MonoMethodSignature *cctor_signature = NULL;
3978 static MonoMethodSignature *finalize_signature = NULL;
3980 const char *param_names [16];
3981 gboolean need_direct_wrapper = FALSE;
3986 if (!cctor_signature) {
3987 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3988 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3990 if (!finalize_signature) {
3991 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3992 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3993 finalize_signature->hasthis = 1;
3997 need_direct_wrapper = TRUE;
4000 * Use a separate cache indexed by methods to speed things up and to avoid the
4001 * boundless mempool growth caused by the signature_dup stuff below.
4004 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4006 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4008 res = mono_marshal_find_in_cache (cache, method);
4012 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4013 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4015 * Array Get/Set/Address methods. The JIT implements them using inline code
4016 * so we need to create an invoke wrapper which calls the method directly.
4018 need_direct_wrapper = TRUE;
4021 if (method->string_ctor) {
4022 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4024 callsig = add_string_ctor_signature (method);
4025 /* Can't share this as we push a string as this */
4026 need_direct_wrapper = TRUE;
4028 if (method_is_dynamic (method))
4029 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4031 callsig = mono_method_signature (method);
4034 sig = mono_method_signature (method);
4036 target_klass = get_wrapper_target_class (method->klass->image);
4038 /* Try to share wrappers for non-corlib methods with simple signatures */
4039 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4040 callsig = cctor_signature;
4041 target_klass = mono_defaults.object_class;
4042 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4043 callsig = finalize_signature;
4044 target_klass = mono_defaults.object_class;
4047 if (need_direct_wrapper) {
4048 /* Already searched at the start */
4050 MonoMethodSignature *tmp_sig;
4052 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4053 GHashTable **cache_table = NULL;
4055 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4056 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4058 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4060 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4061 (GCompareFunc)runtime_invoke_signature_equal);
4063 /* from mono_marshal_find_in_cache */
4064 mono_marshal_lock ();
4065 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4066 mono_marshal_unlock ();
4073 /* Make a copy of the signature from the image mempool */
4075 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4079 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4081 csig->ret = &mono_defaults.object_class->byval_arg;
4082 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4083 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4085 csig->params [0] = &mono_defaults.object_class->byval_arg;
4086 csig->params [1] = &mono_defaults.int_class->byval_arg;
4087 csig->params [2] = &mono_defaults.int_class->byval_arg;
4088 csig->params [3] = &mono_defaults.int_class->byval_arg;
4091 /* This is called from runtime code so it has to be cdecl */
4092 csig->call_convention = MONO_CALL_C;
4095 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4096 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4100 param_names [0] = "this";
4101 param_names [1] = "params";
4102 param_names [2] = "exc";
4103 param_names [3] = "method";
4104 mono_mb_set_param_names (mb, param_names);
4106 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4109 if (need_direct_wrapper) {
4111 mb->skip_visibility = 1;
4113 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4114 info->d.runtime_invoke.method = method;
4115 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4117 /* taken from mono_mb_create_and_cache */
4118 mono_marshal_lock ();
4119 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4120 mono_marshal_unlock ();
4122 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4123 info->d.runtime_invoke.sig = callsig;
4125 /* Somebody may have created it before us */
4128 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4130 mono_marshal_lock ();
4131 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4133 GHashTable *direct_cache;
4135 g_hash_table_insert (cache, callsig, res);
4136 /* Can't insert it into wrapper_hash since the key is a signature */
4137 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4139 g_hash_table_insert (direct_cache, method, res);
4141 mono_free_method (newm);
4143 mono_marshal_unlock ();
4146 /* end mono_mb_create_and_cache */
4155 * mono_marshal_get_runtime_invoke_dynamic:
4157 * Return a method which can be used to invoke managed methods from native code
4159 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4160 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4161 * ARGS should point to an architecture specific structure containing
4162 * the arguments and space for the return value.
4163 * The other arguments are the same as for runtime_invoke (), except that
4164 * ARGS should contain the this argument too.
4165 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4166 * is only one copy of it, which is useful in full-aot.
4167 * The wrapper info for the wrapper is a WrapperInfo structure.
4170 mono_marshal_get_runtime_invoke_dynamic (void)
4172 static MonoMethod *method;
4173 MonoMethodSignature *csig;
4174 MonoExceptionClause *clause;
4175 MonoMethodBuilder *mb;
4183 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4185 csig->ret = &mono_defaults.void_class->byval_arg;
4186 csig->params [0] = &mono_defaults.int_class->byval_arg;
4187 csig->params [1] = &mono_defaults.int_class->byval_arg;
4188 csig->params [2] = &mono_defaults.int_class->byval_arg;
4189 csig->params [3] = &mono_defaults.int_class->byval_arg;
4191 name = g_strdup ("runtime_invoke_dynamic");
4192 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4196 /* allocate local 0 (object) tmp */
4197 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4198 /* allocate local 1 (object) exc */
4199 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4201 /* cond set *exc to null */
4202 mono_mb_emit_byte (mb, CEE_LDARG_1);
4203 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4204 mono_mb_emit_byte (mb, 3);
4205 mono_mb_emit_byte (mb, CEE_LDARG_1);
4206 mono_mb_emit_byte (mb, CEE_LDNULL);
4207 mono_mb_emit_byte (mb, CEE_STIND_REF);
4209 emit_thread_force_interrupt_checkpoint (mb);
4211 mono_mb_emit_byte (mb, CEE_LDARG_0);
4212 mono_mb_emit_byte (mb, CEE_LDARG_2);
4213 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4214 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4216 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4218 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4219 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4220 clause->try_len = mono_mb_get_label (mb);
4223 clause->data.filter_offset = mono_mb_get_label (mb);
4225 mono_mb_emit_byte (mb, CEE_POP);
4226 mono_mb_emit_byte (mb, CEE_LDARG_1);
4227 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4228 mono_mb_emit_byte (mb, CEE_PREFIX1);
4229 mono_mb_emit_byte (mb, CEE_CGT_UN);
4230 mono_mb_emit_byte (mb, CEE_PREFIX1);
4231 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4233 clause->handler_offset = mono_mb_get_label (mb);
4236 /* store exception */
4237 mono_mb_emit_stloc (mb, 1);
4239 mono_mb_emit_byte (mb, CEE_LDARG_1);
4240 mono_mb_emit_ldloc (mb, 1);
4241 mono_mb_emit_byte (mb, CEE_STIND_REF);
4243 mono_mb_emit_byte (mb, CEE_LDNULL);
4244 mono_mb_emit_stloc (mb, 0);
4246 /* Check for the abort exception */
4247 mono_mb_emit_ldloc (mb, 1);
4248 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4249 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4251 /* Delay the abort exception */
4252 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4254 mono_mb_patch_short_branch (mb, posna);
4255 mono_mb_emit_branch (mb, CEE_LEAVE);
4257 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4259 mono_mb_set_clauses (mb, 1, clause);
4262 mono_mb_patch_branch (mb, pos);
4263 //mono_mb_emit_ldloc (mb, 0);
4264 mono_mb_emit_byte (mb, CEE_RET);
4265 #endif /* DISABLE_JIT */
4267 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4269 mono_marshal_lock ();
4270 /* double-checked locking */
4272 method = mono_mb_create (mb, csig, 16, info);
4274 mono_marshal_unlock ();
4282 * mono_marshal_get_runtime_invoke_for_sig:
4284 * Return a runtime invoke wrapper for a given signature.
4287 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4289 MonoMethodSignature *csig, *callsig;
4290 MonoMethodBuilder *mb;
4292 GHashTable *cache = NULL;
4293 GHashTable **cache_table = NULL;
4294 MonoMethod *res = NULL;
4296 const char *param_names [16];
4299 /* A simplified version of mono_marshal_get_runtime_invoke */
4301 image = mono_defaults.corlib;
4303 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4305 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4307 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4308 (GCompareFunc)runtime_invoke_signature_equal);
4310 /* from mono_marshal_find_in_cache */
4311 mono_marshal_lock ();
4312 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4313 mono_marshal_unlock ();
4320 /* Make a copy of the signature from the image mempool */
4321 callsig = mono_metadata_signature_dup_full (image, callsig);
4323 csig = mono_metadata_signature_alloc (image, 4);
4324 csig->ret = &mono_defaults.object_class->byval_arg;
4325 csig->params [0] = &mono_defaults.object_class->byval_arg;
4326 csig->params [1] = &mono_defaults.int_class->byval_arg;
4327 csig->params [2] = &mono_defaults.int_class->byval_arg;
4328 csig->params [3] = &mono_defaults.int_class->byval_arg;
4331 /* This is called from runtime code so it has to be cdecl */
4332 csig->call_convention = MONO_CALL_C;
4335 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4336 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4340 param_names [0] = "this";
4341 param_names [1] = "params";
4342 param_names [2] = "exc";
4343 param_names [3] = "method";
4344 mono_mb_set_param_names (mb, param_names);
4346 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4349 /* taken from mono_mb_create_and_cache */
4350 mono_marshal_lock ();
4351 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4352 mono_marshal_unlock ();
4354 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4355 info->d.runtime_invoke.sig = callsig;
4357 /* Somebody may have created it before us */
4360 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4362 mono_marshal_lock ();
4363 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4366 g_hash_table_insert (cache, callsig, res);
4368 mono_free_method (newm);
4370 mono_marshal_unlock ();
4373 /* end mono_mb_create_and_cache */
4382 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4384 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4385 klass->name_space, klass->name);
4387 mono_mb_emit_exception_marshal_directive (mb, msg);
4392 * generates IL code for the icall wrapper (the generated method
4393 * calls the unmanaged code in func)
4394 * The wrapper info for the wrapper is a WrapperInfo structure.
4397 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4399 MonoMethodSignature *csig, *csig2;
4400 MonoMethodBuilder *mb;
4405 g_assert (sig->pinvoke);
4407 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4409 mb->method->save_lmf = 1;
4411 /* Add an explicit this argument */
4413 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4415 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4419 mono_mb_emit_byte (mb, CEE_LDARG_0);
4421 for (i = 0; i < sig->param_count; i++)
4422 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4425 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4426 mono_mb_emit_calli (mb, csig2);
4427 if (check_exceptions)
4428 emit_thread_interrupt_checkpoint (mb);
4429 mono_mb_emit_byte (mb, CEE_RET);
4432 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4434 if (csig->call_convention == MONO_CALL_VARARG)
4435 csig->call_convention = 0;
4437 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4438 info->d.icall.func = (gpointer)func;
4439 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4446 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4447 MonoMarshalSpec *spec,
4448 int conv_arg, MonoType **conv_arg_type,
4449 MarshalAction action)
4452 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4453 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4459 static MonoClass *ICustomMarshaler = NULL;
4460 static MonoMethod *cleanup_native, *cleanup_managed;
4461 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4462 MonoMethod *get_instance = NULL;
4463 MonoMethodBuilder *mb = m->mb;
4464 char *exception_msg = NULL;
4468 if (!ICustomMarshaler) {
4469 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4471 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4472 goto handle_exception;
4475 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4476 g_assert (cleanup_native);
4477 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4478 g_assert (cleanup_managed);
4479 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4480 g_assert (marshal_managed_to_native);
4481 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4482 g_assert (marshal_native_to_managed);
4484 mono_memory_barrier ();
4485 ICustomMarshaler = klass;
4488 if (spec->data.custom_data.image)
4489 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4491 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4492 g_assert (mtype != NULL);
4493 mono_error_assert_ok (&error);
4494 mklass = mono_class_from_mono_type (mtype);
4495 g_assert (mklass != NULL);
4497 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4498 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4500 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4502 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4503 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4504 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4505 (get_sig->params [0]->type != MONO_TYPE_STRING))
4506 get_instance = NULL;
4510 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);
4513 /* Throw exception and emit compensation code if neccesary */
4514 if (exception_msg) {
4516 case MARSHAL_ACTION_CONV_IN:
4517 case MARSHAL_ACTION_CONV_RESULT:
4518 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4519 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4520 mono_mb_emit_byte (mb, CEE_POP);
4522 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4523 g_free (exception_msg);
4526 case MARSHAL_ACTION_PUSH:
4527 mono_mb_emit_byte (mb, CEE_LDNULL);
4535 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4536 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4539 case MARSHAL_ACTION_CONV_IN:
4541 case MONO_TYPE_CLASS:
4542 case MONO_TYPE_OBJECT:
4543 case MONO_TYPE_STRING:
4544 case MONO_TYPE_ARRAY:
4545 case MONO_TYPE_SZARRAY:
4546 case MONO_TYPE_VALUETYPE:
4550 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4551 g_assert_not_reached ();
4555 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4557 mono_mb_emit_byte (mb, CEE_LDNULL);
4558 mono_mb_emit_stloc (mb, conv_arg);
4560 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4563 /* Minic MS.NET behavior */
4564 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4567 /* Check for null */
4568 mono_mb_emit_ldarg (mb, argnum);
4570 mono_mb_emit_byte (mb, CEE_LDIND_I);
4571 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4573 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4575 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4577 mono_mb_emit_ldarg (mb, argnum);
4579 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4581 if (t->type == MONO_TYPE_VALUETYPE) {
4583 * Since we can't determine the type of the argument, we
4584 * will assume the unmanaged function takes a pointer.
4586 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4588 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4591 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4592 mono_mb_emit_stloc (mb, conv_arg);
4594 mono_mb_patch_branch (mb, pos2);
4597 case MARSHAL_ACTION_CONV_OUT:
4598 /* Check for null */
4599 mono_mb_emit_ldloc (mb, conv_arg);
4600 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4603 mono_mb_emit_ldarg (mb, argnum);
4605 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4607 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4609 mono_mb_emit_ldloc (mb, conv_arg);
4610 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4611 mono_mb_emit_byte (mb, CEE_STIND_REF);
4612 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4613 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4615 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4617 mono_mb_emit_ldloc (mb, conv_arg);
4618 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4620 /* We have nowhere to store the result */
4621 mono_mb_emit_byte (mb, CEE_POP);
4624 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4626 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4628 mono_mb_emit_ldloc (mb, conv_arg);
4630 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4632 mono_mb_patch_branch (mb, pos2);
4635 case MARSHAL_ACTION_PUSH:
4637 mono_mb_emit_ldloc_addr (mb, conv_arg);
4639 mono_mb_emit_ldloc (mb, conv_arg);
4642 case MARSHAL_ACTION_CONV_RESULT:
4643 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4645 mono_mb_emit_stloc (mb, 3);
4647 mono_mb_emit_ldloc (mb, 3);
4648 mono_mb_emit_stloc (mb, loc1);
4650 /* Check for null */
4651 mono_mb_emit_ldloc (mb, 3);
4652 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4654 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4656 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4657 mono_mb_emit_byte (mb, CEE_DUP);
4659 mono_mb_emit_ldloc (mb, 3);
4660 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4661 mono_mb_emit_stloc (mb, 3);
4663 mono_mb_emit_ldloc (mb, loc1);
4664 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4666 mono_mb_patch_branch (mb, pos2);
4669 case MARSHAL_ACTION_MANAGED_CONV_IN:
4670 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4672 mono_mb_emit_byte (mb, CEE_LDNULL);
4673 mono_mb_emit_stloc (mb, conv_arg);
4675 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4678 /* Check for null */
4679 mono_mb_emit_ldarg (mb, argnum);
4681 mono_mb_emit_byte (mb, CEE_LDIND_I);
4682 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4684 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4685 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4687 mono_mb_emit_ldarg (mb, argnum);
4689 mono_mb_emit_byte (mb, CEE_LDIND_I);
4691 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4692 mono_mb_emit_stloc (mb, conv_arg);
4694 mono_mb_patch_branch (mb, pos2);
4697 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4698 g_assert (!t->byref);
4700 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4702 mono_mb_emit_stloc (mb, 3);
4704 mono_mb_emit_ldloc (mb, 3);
4705 mono_mb_emit_stloc (mb, loc1);
4707 /* Check for null */
4708 mono_mb_emit_ldloc (mb, 3);
4709 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4711 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4712 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4713 mono_mb_emit_byte (mb, CEE_DUP);
4715 mono_mb_emit_ldloc (mb, 3);
4716 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4717 mono_mb_emit_stloc (mb, 3);
4719 mono_mb_emit_ldloc (mb, loc1);
4720 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4722 mono_mb_patch_branch (mb, pos2);
4725 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4727 /* Check for null */
4728 mono_mb_emit_ldloc (mb, conv_arg);
4729 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4732 mono_mb_emit_ldarg (mb, argnum);
4734 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4736 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4738 mono_mb_emit_ldloc (mb, conv_arg);
4739 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4740 mono_mb_emit_byte (mb, CEE_STIND_I);
4743 /* Call CleanUpManagedData */
4744 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4746 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4748 mono_mb_emit_ldloc (mb, conv_arg);
4749 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4751 mono_mb_patch_branch (mb, pos2);
4755 g_assert_not_reached ();
4763 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4764 MonoMarshalSpec *spec,
4765 int conv_arg, MonoType **conv_arg_type,
4766 MarshalAction action)
4769 MonoMethodBuilder *mb = m->mb;
4772 case MARSHAL_ACTION_CONV_IN: {
4773 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4775 g_assert (t->type == MONO_TYPE_OBJECT);
4776 g_assert (!t->byref);
4778 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4779 mono_mb_emit_ldarg (mb, argnum);
4780 mono_mb_emit_icon (mb, encoding);
4781 mono_mb_emit_icon (mb, t->attrs);
4782 mono_mb_emit_icall (mb, mono_marshal_asany);
4783 mono_mb_emit_stloc (mb, conv_arg);
4787 case MARSHAL_ACTION_PUSH:
4788 mono_mb_emit_ldloc (mb, conv_arg);
4791 case MARSHAL_ACTION_CONV_OUT: {
4792 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4794 mono_mb_emit_ldarg (mb, argnum);
4795 mono_mb_emit_ldloc (mb, conv_arg);
4796 mono_mb_emit_icon (mb, encoding);
4797 mono_mb_emit_icon (mb, t->attrs);
4798 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4803 g_assert_not_reached ();
4810 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4811 MonoMarshalSpec *spec,
4812 int conv_arg, MonoType **conv_arg_type,
4813 MarshalAction action)
4816 MonoMethodBuilder *mb = m->mb;
4817 MonoClass *klass, *date_time_class;
4820 klass = mono_class_from_mono_type (t);
4822 date_time_class = mono_class_get_date_time_class ();
4825 case MARSHAL_ACTION_CONV_IN:
4826 if (klass == date_time_class) {
4827 /* Convert it to an OLE DATE type */
4828 static MonoMethod *to_oadate;
4831 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4832 g_assert (to_oadate);
4834 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4837 mono_mb_emit_ldarg (mb, argnum);
4838 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4841 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4843 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4845 mono_mb_emit_ldarg_addr (mb, argnum);
4846 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4847 mono_mb_emit_stloc (mb, conv_arg);
4851 mono_mb_patch_branch (mb, pos);
4855 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4856 klass->blittable || klass->enumtype)
4859 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4861 /* store the address of the source into local variable 0 */
4863 mono_mb_emit_ldarg (mb, argnum);
4865 mono_mb_emit_ldarg_addr (mb, argnum);
4867 mono_mb_emit_stloc (mb, 0);
4869 /* allocate space for the native struct and
4870 * store the address into local variable 1 (dest) */
4871 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4872 mono_mb_emit_byte (mb, CEE_PREFIX1);
4873 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4874 mono_mb_emit_stloc (mb, conv_arg);
4877 mono_mb_emit_ldloc (mb, 0);
4878 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4881 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4883 mono_mb_emit_ldloc (mb, conv_arg);
4884 mono_mb_emit_stloc (mb, 1);
4886 /* emit valuetype conversion code */
4887 emit_struct_conv (mb, klass, FALSE);
4891 mono_mb_patch_branch (mb, pos);
4894 case MARSHAL_ACTION_PUSH:
4895 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4897 g_assert (!t->byref);
4899 /* Have to change the signature since the vtype is passed byref */
4900 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4902 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4903 klass->blittable || klass->enumtype)
4904 mono_mb_emit_ldarg_addr (mb, argnum);
4906 mono_mb_emit_ldloc (mb, conv_arg);
4910 if (klass == date_time_class) {
4912 mono_mb_emit_ldloc_addr (mb, conv_arg);
4914 mono_mb_emit_ldloc (mb, conv_arg);
4918 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4919 klass->blittable || klass->enumtype) {
4920 mono_mb_emit_ldarg (mb, argnum);
4923 mono_mb_emit_ldloc (mb, conv_arg);
4925 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4926 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4930 case MARSHAL_ACTION_CONV_OUT:
4931 if (klass == date_time_class) {
4932 /* Convert from an OLE DATE type */
4933 static MonoMethod *from_oadate;
4938 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4940 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4941 g_assert (from_oadate);
4943 mono_mb_emit_ldarg (mb, argnum);
4944 mono_mb_emit_ldloc (mb, conv_arg);
4945 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4946 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4951 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4952 klass->blittable || klass->enumtype)
4956 /* dst = argument */
4957 mono_mb_emit_ldarg (mb, argnum);
4958 mono_mb_emit_stloc (mb, 1);
4960 mono_mb_emit_ldloc (mb, 1);
4961 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4963 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4964 /* src = tmp_locals [i] */
4965 mono_mb_emit_ldloc (mb, conv_arg);
4966 mono_mb_emit_stloc (mb, 0);
4968 /* emit valuetype conversion code */
4969 emit_struct_conv (mb, klass, TRUE);
4973 emit_struct_free (mb, klass, conv_arg);
4976 mono_mb_patch_branch (mb, pos);
4979 case MARSHAL_ACTION_CONV_RESULT:
4980 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4982 mono_mb_emit_stloc (mb, 3);
4986 /* load pointer to returned value type */
4987 g_assert (m->vtaddr_var);
4988 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4989 /* store the address of the source into local variable 0 */
4990 mono_mb_emit_stloc (mb, 0);
4992 mono_mb_emit_ldloc_addr (mb, 3);
4993 mono_mb_emit_stloc (mb, 1);
4995 /* emit valuetype conversion code */
4996 emit_struct_conv (mb, klass, TRUE);
4999 case MARSHAL_ACTION_MANAGED_CONV_IN:
5000 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5001 klass->blittable || klass->enumtype) {
5006 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5008 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5012 mono_mb_emit_ldarg (mb, argnum);
5014 mono_mb_emit_ldarg_addr (mb, argnum);
5015 mono_mb_emit_stloc (mb, 0);
5018 mono_mb_emit_ldloc (mb, 0);
5019 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5022 mono_mb_emit_ldloc_addr (mb, conv_arg);
5023 mono_mb_emit_stloc (mb, 1);
5025 /* emit valuetype conversion code */
5026 emit_struct_conv (mb, klass, TRUE);
5029 mono_mb_patch_branch (mb, pos);
5032 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5033 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5034 klass->blittable || klass->enumtype) {
5038 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5041 /* Check for null */
5042 mono_mb_emit_ldarg (mb, argnum);
5043 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5046 mono_mb_emit_ldloc_addr (mb, conv_arg);
5047 mono_mb_emit_stloc (mb, 0);
5050 mono_mb_emit_ldarg (mb, argnum);
5051 mono_mb_emit_stloc (mb, 1);
5053 /* emit valuetype conversion code */
5054 emit_struct_conv (mb, klass, FALSE);
5056 mono_mb_patch_branch (mb, pos2);
5059 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5060 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5061 klass->blittable || klass->enumtype) {
5062 mono_mb_emit_stloc (mb, 3);
5067 /* load pointer to returned value type */
5068 g_assert (m->vtaddr_var);
5069 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5071 /* store the address of the source into local variable 0 */
5072 mono_mb_emit_stloc (mb, 0);
5073 /* allocate space for the native struct and
5074 * store the address into dst_ptr */
5075 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5076 m->retobj_class = klass;
5077 g_assert (m->retobj_var);
5078 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5079 mono_mb_emit_byte (mb, CEE_CONV_I);
5080 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5081 mono_mb_emit_stloc (mb, 1);
5082 mono_mb_emit_ldloc (mb, 1);
5083 mono_mb_emit_stloc (mb, m->retobj_var);
5085 /* emit valuetype conversion code */
5086 emit_struct_conv (mb, klass, FALSE);
5090 g_assert_not_reached ();
5097 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5098 MonoMarshalSpec *spec,
5099 int conv_arg, MonoType **conv_arg_type,
5100 MarshalAction action)
5104 case MARSHAL_ACTION_CONV_IN:
5105 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5107 case MARSHAL_ACTION_MANAGED_CONV_IN:
5108 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5112 MonoMethodBuilder *mb = m->mb;
5113 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5114 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5118 case MARSHAL_ACTION_CONV_IN:
5119 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5120 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5123 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5126 mono_mb_emit_ldarg (mb, argnum);
5127 mono_mb_emit_byte (mb, CEE_LDIND_I);
5129 mono_mb_emit_ldarg (mb, argnum);
5132 if (conv == MONO_MARSHAL_CONV_INVALID) {
5133 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5134 mono_mb_emit_exception_marshal_directive (mb, msg);
5136 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5138 mono_mb_emit_stloc (mb, conv_arg);
5142 case MARSHAL_ACTION_CONV_OUT:
5143 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5144 if (conv == MONO_MARSHAL_CONV_INVALID) {
5145 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5146 mono_mb_emit_exception_marshal_directive (mb, msg);
5150 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5151 static MonoMethod *m;
5154 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5159 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5160 mono_mb_emit_exception_marshal_directive (mb, msg);
5165 * Have to allocate a new string with the same length as the original, and
5166 * copy the contents of the buffer pointed to by CONV_ARG into it.
5168 g_assert (t->byref);
5169 mono_mb_emit_ldarg (mb, argnum);
5170 mono_mb_emit_ldloc (mb, conv_arg);
5171 mono_mb_emit_ldarg (mb, argnum);
5172 mono_mb_emit_byte (mb, CEE_LDIND_I);
5173 mono_mb_emit_managed_call (mb, m, NULL);
5174 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5175 mono_mb_emit_byte (mb, CEE_STIND_REF);
5176 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5178 mono_mb_emit_ldarg (mb, argnum);
5179 mono_mb_emit_ldloc (mb, conv_arg);
5180 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5181 mono_mb_emit_byte (mb, stind_op);
5186 mono_mb_emit_ldloc (mb, conv_arg);
5187 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5188 mono_mb_emit_icall (mb, mono_free_bstr);
5190 mono_mb_emit_icall (mb, mono_marshal_free);
5194 case MARSHAL_ACTION_PUSH:
5195 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5196 mono_mb_emit_ldloc_addr (mb, conv_arg);
5198 mono_mb_emit_ldloc (mb, conv_arg);
5201 case MARSHAL_ACTION_CONV_RESULT:
5202 mono_mb_emit_stloc (mb, 0);
5204 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5205 if (conv == MONO_MARSHAL_CONV_INVALID) {
5206 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5207 mono_mb_emit_exception_marshal_directive (mb, msg);
5211 mono_mb_emit_ldloc (mb, 0);
5212 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5213 mono_mb_emit_stloc (mb, 3);
5215 /* free the string */
5216 mono_mb_emit_ldloc (mb, 0);
5217 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5218 mono_mb_emit_icall (mb, mono_free_bstr);
5220 mono_mb_emit_icall (mb, mono_marshal_free);
5223 case MARSHAL_ACTION_MANAGED_CONV_IN:
5224 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5226 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5229 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5233 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5234 if (conv == MONO_MARSHAL_CONV_INVALID) {
5235 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5236 mono_mb_emit_exception_marshal_directive (mb, msg);
5240 mono_mb_emit_ldarg (mb, argnum);
5242 mono_mb_emit_byte (mb, CEE_LDIND_I);
5243 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5244 mono_mb_emit_stloc (mb, conv_arg);
5247 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5251 mono_mb_emit_ldarg (mb, argnum);
5252 mono_mb_emit_ldloc (mb, conv_arg);
5253 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5254 mono_mb_emit_byte (mb, stind_op);
5259 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5260 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5261 /* We need to make a copy so the caller is able to free it */
5262 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5264 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5265 mono_mb_emit_stloc (mb, 3);
5269 g_assert_not_reached ();
5277 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5278 MonoMarshalSpec *spec, int conv_arg,
5279 MonoType **conv_arg_type, MarshalAction action)
5282 if (action == MARSHAL_ACTION_CONV_IN)
5283 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5285 MonoMethodBuilder *mb = m->mb;
5288 case MARSHAL_ACTION_CONV_IN: {
5289 MonoType *intptr_type;
5290 int dar_release_slot, pos;
5292 intptr_type = &mono_defaults.int_class->byval_arg;
5293 conv_arg = mono_mb_add_local (mb, intptr_type);
5294 *conv_arg_type = intptr_type;
5296 if (!sh_dangerous_add_ref)
5297 init_safe_handle ();
5299 mono_mb_emit_ldarg (mb, argnum);
5300 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5301 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5303 mono_mb_patch_branch (mb, pos);
5306 * My tests in show that ref SafeHandles are not really
5307 * passed as ref objects. Instead a NULL is passed as the
5310 mono_mb_emit_icon (mb, 0);
5311 mono_mb_emit_stloc (mb, conv_arg);
5315 /* Create local to hold the ref parameter to DangerousAddRef */
5316 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5318 /* set release = false; */
5319 mono_mb_emit_icon (mb, 0);
5320 mono_mb_emit_stloc (mb, dar_release_slot);
5322 /* safehandle.DangerousAddRef (ref release) */
5323 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5325 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5327 /* Pull the handle field from SafeHandle */
5328 mono_mb_emit_ldarg (mb, argnum);
5329 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5330 mono_mb_emit_byte (mb, CEE_LDIND_I);
5331 mono_mb_emit_stloc (mb, conv_arg);
5336 case MARSHAL_ACTION_PUSH:
5338 mono_mb_emit_ldloc_addr (mb, conv_arg);
5340 mono_mb_emit_ldloc (mb, conv_arg);
5343 case MARSHAL_ACTION_CONV_OUT: {
5344 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5345 int dar_release_slot = conv_arg + 1;
5348 if (!sh_dangerous_release)
5349 init_safe_handle ();
5355 * My tests indicate that ref SafeHandles parameters are not actually
5356 * passed by ref, but instead a new Handle is created regardless of
5357 * whether a change happens in the unmanaged side.
5359 * Also, the Handle is created before calling into unmanaged code,
5360 * but we do not support that mechanism (getting to the original
5361 * handle) and it makes no difference where we create this
5363 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5365 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5368 /* refval = new SafeHandleDerived ()*/
5369 mono_mb_emit_ldarg (mb, argnum);
5370 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5371 mono_mb_emit_byte (mb, CEE_STIND_REF);
5373 /* refval.handle = returned_handle */
5374 mono_mb_emit_ldarg (mb, argnum);
5375 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5376 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5377 mono_mb_emit_ldloc (mb, conv_arg);
5378 mono_mb_emit_byte (mb, CEE_STIND_I);
5380 mono_mb_emit_ldloc (mb, dar_release_slot);
5381 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5382 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5384 mono_mb_patch_branch (mb, label_next);
5389 case MARSHAL_ACTION_CONV_RESULT: {
5390 MonoMethod *ctor = NULL;
5391 int intptr_handle_slot;
5393 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5394 mono_mb_emit_byte (mb, CEE_POP);
5395 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5399 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5401 mono_mb_emit_byte (mb, CEE_POP);
5402 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5405 /* Store the IntPtr results into a local */
5406 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5407 mono_mb_emit_stloc (mb, intptr_handle_slot);
5409 /* Create return value */
5410 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5411 mono_mb_emit_stloc (mb, 3);
5413 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5414 mono_mb_emit_ldloc (mb, 3);
5415 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5416 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5417 mono_mb_emit_byte (mb, CEE_STIND_I);
5421 case MARSHAL_ACTION_MANAGED_CONV_IN:
5422 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5425 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5426 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5429 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5430 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5433 printf ("Unhandled case for MarshalAction: %d\n", action);
5441 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5442 MonoMarshalSpec *spec, int conv_arg,
5443 MonoType **conv_arg_type, MarshalAction action)
5446 if (action == MARSHAL_ACTION_CONV_IN)
5447 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5449 MonoMethodBuilder *mb = m->mb;
5452 case MARSHAL_ACTION_CONV_IN: {
5453 MonoType *intptr_type;
5455 intptr_type = &mono_defaults.int_class->byval_arg;
5456 conv_arg = mono_mb_add_local (mb, intptr_type);
5457 *conv_arg_type = intptr_type;
5460 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5461 mono_mb_emit_exception_marshal_directive (mb, msg);
5464 mono_mb_emit_ldarg_addr (mb, argnum);
5465 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5466 mono_mb_emit_byte (mb, CEE_ADD);
5467 mono_mb_emit_byte (mb, CEE_LDIND_I);
5468 mono_mb_emit_stloc (mb, conv_arg);
5472 case MARSHAL_ACTION_PUSH:
5473 mono_mb_emit_ldloc (mb, conv_arg);
5476 case MARSHAL_ACTION_CONV_OUT: {
5477 /* no resource release required */
5481 case MARSHAL_ACTION_CONV_RESULT: {
5482 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5483 mono_mb_emit_exception_marshal_directive (mb, msg);
5487 case MARSHAL_ACTION_MANAGED_CONV_IN:
5488 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5491 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5492 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5495 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5496 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5499 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5507 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5508 MonoMarshalSpec *spec,
5509 int conv_arg, MonoType **conv_arg_type,
5510 MarshalAction action)
5513 if (action == MARSHAL_ACTION_CONV_IN)
5514 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5516 MonoMethodBuilder *mb = m->mb;
5517 MonoClass *klass = mono_class_from_mono_type (t);
5521 case MARSHAL_ACTION_CONV_IN:
5522 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5523 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5525 m->orig_conv_args [argnum] = 0;
5527 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5528 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5529 mono_mb_emit_exception_marshal_directive (mb, msg);
5533 if (klass->delegate) {
5535 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5536 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5537 mono_mb_emit_exception_marshal_directive (mb, msg);
5539 mono_mb_emit_byte (mb, CEE_LDNULL);
5540 mono_mb_emit_stloc (mb, conv_arg);
5542 mono_mb_emit_ldarg (mb, argnum);
5543 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5544 mono_mb_emit_stloc (mb, conv_arg);
5546 } else if (klass == mono_defaults.stringbuilder_class) {
5547 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5548 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5552 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5553 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5554 mono_mb_emit_exception_marshal_directive (mb, msg);
5560 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5563 if (conv == MONO_MARSHAL_CONV_INVALID) {
5564 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5565 mono_mb_emit_exception_marshal_directive (mb, msg);
5569 mono_mb_emit_ldarg (mb, argnum);
5571 mono_mb_emit_byte (mb, CEE_LDIND_I);
5573 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5574 mono_mb_emit_stloc (mb, conv_arg);
5575 } else if (klass->blittable) {
5576 mono_mb_emit_byte (mb, CEE_LDNULL);
5577 mono_mb_emit_stloc (mb, conv_arg);
5579 mono_mb_emit_ldarg (mb, argnum);
5580 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5582 mono_mb_emit_ldarg (mb, argnum);
5583 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5584 mono_mb_emit_stloc (mb, conv_arg);
5586 mono_mb_patch_branch (mb, pos);
5589 mono_mb_emit_byte (mb, CEE_LDNULL);
5590 mono_mb_emit_stloc (mb, conv_arg);
5593 /* we dont need any conversions for out parameters */
5594 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5597 mono_mb_emit_ldarg (mb, argnum);
5598 mono_mb_emit_byte (mb, CEE_LDIND_I);
5601 mono_mb_emit_ldarg (mb, argnum);
5602 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5603 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5606 /* store the address of the source into local variable 0 */
5607 mono_mb_emit_stloc (mb, 0);
5608 mono_mb_emit_ldloc (mb, 0);
5609 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5611 /* allocate space for the native struct and store the address */
5612 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5613 mono_mb_emit_byte (mb, CEE_PREFIX1);
5614 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5615 mono_mb_emit_stloc (mb, conv_arg);
5618 /* Need to store the original buffer so we can free it later */
5619 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5620 mono_mb_emit_ldloc (mb, conv_arg);
5621 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5624 /* set the src_ptr */
5625 mono_mb_emit_ldloc (mb, 0);
5626 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5627 mono_mb_emit_stloc (mb, 0);
5630 mono_mb_emit_ldloc (mb, conv_arg);
5631 mono_mb_emit_stloc (mb, 1);
5633 /* emit valuetype conversion code */
5634 emit_struct_conv (mb, klass, FALSE);
5636 mono_mb_patch_branch (mb, pos);
5640 case MARSHAL_ACTION_CONV_OUT:
5641 if (klass == mono_defaults.stringbuilder_class) {
5643 MonoMarshalNative encoding;
5644 MonoMarshalConv conv;
5646 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5647 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5649 g_assert (encoding != -1);
5652 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5656 mono_mb_emit_ldarg (mb, argnum);
5657 mono_mb_emit_ldloc (mb, conv_arg);
5660 case MONO_NATIVE_LPWSTR:
5661 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5663 case MONO_NATIVE_LPSTR:
5664 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5667 g_assert_not_reached ();
5670 mono_mb_emit_byte (mb, CEE_STIND_REF);
5672 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_ldloc (mb, conv_arg);
5675 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5679 mono_mb_emit_ldloc (mb, conv_arg);
5680 mono_mb_emit_icall (mb, mono_marshal_free);
5685 if (klass->delegate) {
5687 mono_mb_emit_ldarg (mb, argnum);
5688 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5689 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5690 mono_mb_emit_ldloc (mb, conv_arg);
5691 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5692 mono_mb_emit_byte (mb, CEE_STIND_REF);
5697 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5698 /* allocate a new object */
5699 mono_mb_emit_ldarg (mb, argnum);
5700 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5701 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5702 mono_mb_emit_byte (mb, CEE_STIND_REF);
5705 /* dst = *argument */
5706 mono_mb_emit_ldarg (mb, argnum);
5709 mono_mb_emit_byte (mb, CEE_LDIND_I);
5711 mono_mb_emit_stloc (mb, 1);
5713 mono_mb_emit_ldloc (mb, 1);
5714 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5716 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5717 mono_mb_emit_ldloc (mb, 1);
5718 mono_mb_emit_icon (mb, sizeof (MonoObject));
5719 mono_mb_emit_byte (mb, CEE_ADD);
5720 mono_mb_emit_stloc (mb, 1);
5722 /* src = tmp_locals [i] */
5723 mono_mb_emit_ldloc (mb, conv_arg);
5724 mono_mb_emit_stloc (mb, 0);
5726 /* emit valuetype conversion code */
5727 emit_struct_conv (mb, klass, TRUE);
5729 /* Free the structure returned by the native code */
5730 emit_struct_free (mb, klass, conv_arg);
5732 if (m->orig_conv_args [argnum]) {
5734 * If the native function changed the pointer, then free
5735 * the original structure plus the new pointer.
5737 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5738 mono_mb_emit_ldloc (mb, conv_arg);
5739 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5741 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5742 g_assert (m->orig_conv_args [argnum]);
5744 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5747 mono_mb_emit_ldloc (mb, conv_arg);
5748 mono_mb_emit_icall (mb, mono_marshal_free);
5750 mono_mb_patch_branch (mb, pos2);
5754 /* Free the original structure passed to native code */
5755 emit_struct_free (mb, klass, conv_arg);
5757 mono_mb_patch_branch (mb, pos);
5760 case MARSHAL_ACTION_PUSH:
5762 mono_mb_emit_ldloc_addr (mb, conv_arg);
5764 mono_mb_emit_ldloc (mb, conv_arg);
5767 case MARSHAL_ACTION_CONV_RESULT:
5768 if (klass->delegate) {
5769 g_assert (!t->byref);
5770 mono_mb_emit_stloc (mb, 0);
5771 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5772 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5773 mono_mb_emit_ldloc (mb, 0);
5774 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5775 mono_mb_emit_stloc (mb, 3);
5778 mono_mb_emit_stloc (mb, 0);
5780 /* Make a copy since emit_conv modifies local 0 */
5781 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5782 mono_mb_emit_ldloc (mb, 0);
5783 mono_mb_emit_stloc (mb, loc);
5785 mono_mb_emit_byte (mb, CEE_LDNULL);
5786 mono_mb_emit_stloc (mb, 3);
5788 mono_mb_emit_ldloc (mb, 0);
5789 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5791 /* allocate result object */
5793 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5794 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5795 mono_mb_emit_stloc (mb, 3);
5799 mono_mb_emit_ldloc (mb, 3);
5800 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5801 mono_mb_emit_stloc (mb, 1);
5803 /* emit conversion code */
5804 emit_struct_conv (mb, klass, TRUE);
5806 emit_struct_free (mb, klass, loc);
5808 /* Free the pointer allocated by unmanaged code */
5809 mono_mb_emit_ldloc (mb, loc);
5810 mono_mb_emit_icall (mb, mono_marshal_free);
5811 mono_mb_patch_branch (mb, pos);
5815 case MARSHAL_ACTION_MANAGED_CONV_IN:
5816 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5818 if (klass->delegate) {
5819 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5820 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5821 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_byte (mb, CEE_LDIND_I);
5824 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5825 mono_mb_emit_stloc (mb, conv_arg);
5829 if (klass == mono_defaults.stringbuilder_class) {
5830 MonoMarshalNative encoding;
5832 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5835 g_assert (encoding == MONO_NATIVE_LPSTR);
5837 g_assert (!t->byref);
5838 g_assert (encoding != -1);
5840 mono_mb_emit_ldarg (mb, argnum);
5841 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5842 mono_mb_emit_stloc (mb, conv_arg);
5846 /* The class can not have an automatic layout */
5847 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5848 mono_mb_emit_auto_layout_exception (mb, klass);
5852 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5853 mono_mb_emit_byte (mb, CEE_LDNULL);
5854 mono_mb_emit_stloc (mb, conv_arg);
5859 mono_mb_emit_ldarg (mb, argnum);
5863 /* Check for NULL and raise an exception */
5864 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5866 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5868 mono_mb_patch_branch (mb, pos2);
5869 mono_mb_emit_ldarg (mb, argnum);
5870 mono_mb_emit_byte (mb, CEE_LDIND_I);
5873 mono_mb_emit_stloc (mb, 0);
5875 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5876 mono_mb_emit_stloc (mb, conv_arg);
5878 mono_mb_emit_ldloc (mb, 0);
5879 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5881 /* Create and set dst */
5882 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5883 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5884 mono_mb_emit_stloc (mb, conv_arg);
5885 mono_mb_emit_ldloc (mb, conv_arg);
5886 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5887 mono_mb_emit_stloc (mb, 1);
5889 /* emit valuetype conversion code */
5890 emit_struct_conv (mb, klass, TRUE);
5892 mono_mb_patch_branch (mb, pos);
5895 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5896 if (klass->delegate) {
5899 mono_mb_emit_ldarg (mb, argnum);
5900 mono_mb_emit_ldloc (mb, conv_arg);
5901 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5902 mono_mb_emit_byte (mb, stind_op);
5908 /* Check for null */
5909 mono_mb_emit_ldloc (mb, conv_arg);
5910 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5911 mono_mb_emit_ldarg (mb, argnum);
5912 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5913 mono_mb_emit_byte (mb, CEE_STIND_REF);
5914 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5916 mono_mb_patch_branch (mb, pos);
5919 mono_mb_emit_ldloc (mb, conv_arg);
5920 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5921 mono_mb_emit_stloc (mb, 0);
5923 /* Allocate and set dest */
5924 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5925 mono_mb_emit_byte (mb, CEE_CONV_I);
5926 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5927 mono_mb_emit_stloc (mb, 1);
5929 /* Update argument pointer */
5930 mono_mb_emit_ldarg (mb, argnum);
5931 mono_mb_emit_ldloc (mb, 1);
5932 mono_mb_emit_byte (mb, CEE_STIND_I);
5934 /* emit valuetype conversion code */
5935 emit_struct_conv (mb, klass, FALSE);
5937 mono_mb_patch_branch (mb, pos2);
5938 } else if (klass == mono_defaults.stringbuilder_class) {
5939 // FIXME: What to do here ?
5941 /* byval [Out] marshalling */
5943 /* FIXME: Handle null */
5946 mono_mb_emit_ldloc (mb, conv_arg);
5947 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5948 mono_mb_emit_stloc (mb, 0);
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_stloc (mb, 1);
5954 /* emit valuetype conversion code */
5955 emit_struct_conv (mb, klass, FALSE);
5959 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5960 if (klass->delegate) {
5961 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5962 mono_mb_emit_stloc (mb, 3);
5966 /* The class can not have an automatic layout */
5967 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5968 mono_mb_emit_auto_layout_exception (mb, klass);
5972 mono_mb_emit_stloc (mb, 0);
5973 /* Check for null */
5974 mono_mb_emit_ldloc (mb, 0);
5975 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5976 mono_mb_emit_byte (mb, CEE_LDNULL);
5977 mono_mb_emit_stloc (mb, 3);
5978 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5980 mono_mb_patch_branch (mb, pos);
5983 mono_mb_emit_ldloc (mb, 0);
5984 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5985 mono_mb_emit_stloc (mb, 0);
5987 /* Allocate and set dest */
5988 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5989 mono_mb_emit_byte (mb, CEE_CONV_I);
5990 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5991 mono_mb_emit_byte (mb, CEE_DUP);
5992 mono_mb_emit_stloc (mb, 1);
5993 mono_mb_emit_stloc (mb, 3);
5995 emit_struct_conv (mb, klass, FALSE);
5997 mono_mb_patch_branch (mb, pos2);
6001 g_assert_not_reached ();
6012 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6013 MonoMarshalSpec *spec,
6014 int conv_arg, MonoType **conv_arg_type,
6015 MarshalAction action)
6017 MonoMethodBuilder *mb = m->mb;
6018 static MonoMethod *get_object_for_native_variant = NULL;
6019 static MonoMethod *get_native_variant_for_object = NULL;
6021 if (!get_object_for_native_variant)
6022 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6023 g_assert (get_object_for_native_variant);
6025 if (!get_native_variant_for_object)
6026 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6027 g_assert (get_native_variant_for_object);
6030 case MARSHAL_ACTION_CONV_IN: {
6031 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6034 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6036 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6038 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6041 mono_mb_emit_ldarg (mb, argnum);
6043 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6044 mono_mb_emit_ldloc_addr (mb, conv_arg);
6045 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6049 case MARSHAL_ACTION_CONV_OUT: {
6050 static MonoMethod *variant_clear = NULL;
6053 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6054 g_assert (variant_clear);
6057 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6058 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_ldloc_addr (mb, conv_arg);
6060 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6061 mono_mb_emit_byte (mb, CEE_STIND_REF);
6064 mono_mb_emit_ldloc_addr (mb, conv_arg);
6065 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6069 case MARSHAL_ACTION_PUSH:
6071 mono_mb_emit_ldloc_addr (mb, conv_arg);
6073 mono_mb_emit_ldloc (mb, conv_arg);
6076 case MARSHAL_ACTION_CONV_RESULT: {
6077 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6078 mono_mb_emit_exception_marshal_directive (mb, msg);
6082 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6083 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6086 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6088 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6090 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6094 mono_mb_emit_ldarg (mb, argnum);
6096 mono_mb_emit_ldarg_addr (mb, argnum);
6097 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6098 mono_mb_emit_stloc (mb, conv_arg);
6102 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6103 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6104 mono_mb_emit_ldloc (mb, conv_arg);
6105 mono_mb_emit_ldarg (mb, argnum);
6106 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6111 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6112 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6113 mono_mb_emit_exception_marshal_directive (mb, msg);
6118 g_assert_not_reached ();
6124 #endif /* DISABLE_COM */
6125 #endif /* DISABLE_JIT */
6128 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6130 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6131 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6133 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6135 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6147 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6148 MonoMarshalSpec *spec,
6149 int conv_arg, MonoType **conv_arg_type,
6150 MarshalAction action)
6154 case MARSHAL_ACTION_CONV_IN:
6155 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6157 case MARSHAL_ACTION_MANAGED_CONV_IN:
6158 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6162 MonoMethodBuilder *mb = m->mb;
6163 MonoClass *klass = mono_class_from_mono_type (t);
6164 gboolean need_convert, need_free;
6165 MonoMarshalNative encoding;
6167 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6170 case MARSHAL_ACTION_CONV_IN:
6171 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6172 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6174 if (klass->element_class->blittable) {
6175 mono_mb_emit_ldarg (mb, argnum);
6177 mono_mb_emit_byte (mb, CEE_LDIND_I);
6178 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6179 mono_mb_emit_stloc (mb, conv_arg);
6182 guint32 label1, label2, label3;
6183 int index_var, src_var, dest_ptr, esize;
6184 MonoMarshalConv conv;
6185 gboolean is_string = FALSE;
6187 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6189 eklass = klass->element_class;
6191 if (eklass == mono_defaults.string_class) {
6193 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6195 else if (eklass == mono_defaults.stringbuilder_class) {
6197 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6200 conv = MONO_MARSHAL_CONV_INVALID;
6202 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6203 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6204 mono_mb_emit_exception_marshal_directive (mb, msg);
6208 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6209 mono_mb_emit_ldarg (mb, argnum);
6211 mono_mb_emit_byte (mb, CEE_LDIND_I);
6212 mono_mb_emit_stloc (mb, src_var);
6215 mono_mb_emit_ldloc (mb, src_var);
6216 mono_mb_emit_stloc (mb, conv_arg);
6217 mono_mb_emit_ldloc (mb, src_var);
6218 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6221 esize = sizeof (gpointer);
6222 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6223 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6225 esize = mono_class_native_size (eklass, NULL);
6227 /* allocate space for the native struct and store the address */
6228 mono_mb_emit_icon (mb, esize);
6229 mono_mb_emit_ldloc (mb, src_var);
6230 mono_mb_emit_byte (mb, CEE_LDLEN);
6232 if (eklass == mono_defaults.string_class) {
6233 /* Make the array bigger for the terminating null */
6234 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6235 mono_mb_emit_byte (mb, CEE_ADD);
6237 mono_mb_emit_byte (mb, CEE_MUL);
6238 mono_mb_emit_byte (mb, CEE_PREFIX1);
6239 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6240 mono_mb_emit_stloc (mb, conv_arg);
6242 mono_mb_emit_ldloc (mb, conv_arg);
6243 mono_mb_emit_stloc (mb, dest_ptr);
6245 /* Emit marshalling loop */
6246 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6247 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6248 mono_mb_emit_stloc (mb, index_var);
6249 label2 = mono_mb_get_label (mb);
6250 mono_mb_emit_ldloc (mb, index_var);
6251 mono_mb_emit_ldloc (mb, src_var);
6252 mono_mb_emit_byte (mb, CEE_LDLEN);
6253 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6255 /* Emit marshalling code */
6259 mono_mb_emit_ldloc (mb, dest_ptr);
6260 mono_mb_emit_ldloc (mb, src_var);
6261 mono_mb_emit_ldloc (mb, index_var);
6262 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6263 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6264 mono_mb_emit_byte (mb, stind_op);
6266 /* set the src_ptr */
6267 mono_mb_emit_ldloc (mb, src_var);
6268 mono_mb_emit_ldloc (mb, index_var);
6269 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6270 mono_mb_emit_stloc (mb, 0);
6273 mono_mb_emit_ldloc (mb, dest_ptr);
6274 mono_mb_emit_stloc (mb, 1);
6276 /* emit valuetype conversion code */
6277 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6280 mono_mb_emit_add_to_local (mb, index_var, 1);
6281 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6283 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6285 mono_mb_patch_branch (mb, label3);
6287 if (eklass == mono_defaults.string_class) {
6288 /* Null terminate */
6289 mono_mb_emit_ldloc (mb, dest_ptr);
6290 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6291 mono_mb_emit_byte (mb, CEE_STIND_REF);
6294 mono_mb_patch_branch (mb, label1);
6299 case MARSHAL_ACTION_CONV_OUT:
6300 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6301 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);
6302 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6305 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6306 int param_num = spec->data.array_data.param_num;
6307 MonoType *param_type;
6309 param_type = m->sig->params [param_num];
6311 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6312 char *msg = g_strdup ("Not implemented.");
6313 mono_mb_emit_exception_marshal_directive (mb, msg);
6318 mono_mb_emit_ldarg (mb, argnum);
6320 /* Create the managed array */
6321 mono_mb_emit_ldarg (mb, param_num);
6322 if (m->sig->params [param_num]->byref)
6323 // FIXME: Support other types
6324 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6325 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6326 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6327 /* Store into argument */
6328 mono_mb_emit_byte (mb, CEE_STIND_REF);
6332 if (need_convert || need_free) {
6333 /* FIXME: Optimize blittable case */
6335 guint32 label1, label2, label3;
6336 int index_var, src_ptr, loc, esize;
6338 eklass = klass->element_class;
6339 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6340 esize = sizeof (gpointer);
6341 else if (eklass == mono_defaults.char_class)
6342 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6344 esize = mono_class_native_size (eklass, NULL);
6345 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6346 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6349 mono_mb_emit_ldarg (mb, argnum);
6351 mono_mb_emit_byte (mb, CEE_LDIND_I);
6352 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6354 mono_mb_emit_ldloc (mb, conv_arg);
6355 mono_mb_emit_stloc (mb, src_ptr);
6357 /* Emit marshalling loop */
6358 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6359 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6360 mono_mb_emit_stloc (mb, index_var);
6361 label2 = mono_mb_get_label (mb);
6362 mono_mb_emit_ldloc (mb, index_var);
6363 mono_mb_emit_ldarg (mb, argnum);
6365 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6366 mono_mb_emit_byte (mb, CEE_LDLEN);
6367 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6369 /* Emit marshalling code */
6371 if (eklass == mono_defaults.stringbuilder_class) {
6372 gboolean need_free2;
6373 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6375 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6378 mono_mb_emit_ldarg (mb, argnum);
6380 mono_mb_emit_byte (mb, CEE_LDIND_I);
6381 mono_mb_emit_ldloc (mb, index_var);
6382 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6385 mono_mb_emit_ldloc (mb, src_ptr);
6386 mono_mb_emit_byte (mb, CEE_LDIND_I);
6388 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6392 mono_mb_emit_ldloc (mb, src_ptr);
6393 mono_mb_emit_byte (mb, CEE_LDIND_I);
6395 mono_mb_emit_icall (mb, mono_marshal_free);
6398 else if (eklass == mono_defaults.string_class) {
6401 mono_mb_emit_ldloc (mb, src_ptr);
6402 mono_mb_emit_byte (mb, CEE_LDIND_I);
6404 mono_mb_emit_icall (mb, mono_marshal_free);
6409 /* set the src_ptr */
6410 mono_mb_emit_ldloc (mb, src_ptr);
6411 mono_mb_emit_stloc (mb, 0);
6414 mono_mb_emit_ldarg (mb, argnum);
6416 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6417 mono_mb_emit_ldloc (mb, index_var);
6418 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6419 mono_mb_emit_stloc (mb, 1);
6421 /* emit valuetype conversion code */
6422 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6426 mono_mb_emit_ldloc (mb, src_ptr);
6427 mono_mb_emit_stloc (mb, loc);
6428 mono_mb_emit_ldloc (mb, loc);
6430 emit_struct_free (mb, eklass, loc);
6434 mono_mb_emit_add_to_local (mb, index_var, 1);
6435 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6437 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6439 mono_mb_patch_branch (mb, label1);
6440 mono_mb_patch_branch (mb, label3);
6443 if (klass->element_class->blittable) {
6444 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6446 mono_mb_emit_ldarg (mb, argnum);
6448 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6449 mono_mb_emit_ldloc (mb, conv_arg);
6450 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6455 case MARSHAL_ACTION_PUSH:
6457 mono_mb_emit_ldloc_addr (mb, conv_arg);
6459 mono_mb_emit_ldloc (mb, conv_arg);
6462 case MARSHAL_ACTION_CONV_RESULT:
6463 /* fixme: we need conversions here */
6464 mono_mb_emit_stloc (mb, 3);
6467 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6469 guint32 label1, label2, label3;
6470 int index_var, src_ptr, esize, param_num, num_elem;
6471 MonoMarshalConv conv;
6472 gboolean is_string = FALSE;
6474 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6475 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6478 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6479 mono_mb_emit_exception_marshal_directive (mb, msg);
6483 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6484 mono_mb_emit_exception_marshal_directive (mb, msg);
6487 if (spec->native != MONO_NATIVE_LPARRAY) {
6488 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6489 mono_mb_emit_exception_marshal_directive (mb, msg);
6493 /* FIXME: t is from the method which is wrapped, not the delegate type */
6494 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6496 param_num = spec->data.array_data.param_num;
6497 num_elem = spec->data.array_data.num_elem;
6498 if (spec->data.array_data.elem_mult == 0)
6499 /* param_num is not specified */
6502 if (param_num == -1) {
6503 if (num_elem <= 0) {
6504 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6505 mono_mb_emit_exception_marshal_directive (mb, msg);
6510 /* FIXME: Optimize blittable case */
6512 eklass = klass->element_class;
6513 if (eklass == mono_defaults.string_class) {
6515 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6517 else if (eklass == mono_defaults.stringbuilder_class) {
6519 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6522 conv = MONO_MARSHAL_CONV_INVALID;
6524 mono_marshal_load_type_info (eklass);
6527 esize = sizeof (gpointer);
6529 esize = mono_class_native_size (eklass, NULL);
6530 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6532 mono_mb_emit_byte (mb, CEE_LDNULL);
6533 mono_mb_emit_stloc (mb, conv_arg);
6535 /* Check param index */
6536 if (param_num != -1) {
6537 if (param_num >= m->sig->param_count) {
6538 char *msg = g_strdup ("Array size control parameter index is out of range.");
6539 mono_mb_emit_exception_marshal_directive (mb, msg);
6542 switch (m->sig->params [param_num]->type) {
6555 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6556 mono_mb_emit_exception_marshal_directive (mb, msg);
6563 mono_mb_emit_ldarg (mb, argnum);
6564 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6566 mono_mb_emit_ldarg (mb, argnum);
6567 mono_mb_emit_stloc (mb, src_ptr);
6569 /* Create managed array */
6571 * The LPArray marshalling spec says that sometimes param_num starts
6572 * from 1, sometimes it starts from 0. But MS seems to allways start
6576 if (param_num == -1) {
6577 mono_mb_emit_icon (mb, num_elem);
6579 mono_mb_emit_ldarg (mb, param_num);
6581 mono_mb_emit_icon (mb, num_elem);
6582 mono_mb_emit_byte (mb, CEE_ADD);
6584 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6587 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6588 mono_mb_emit_stloc (mb, conv_arg);
6590 if (eklass->blittable) {
6591 mono_mb_emit_ldloc (mb, conv_arg);
6592 mono_mb_emit_byte (mb, CEE_CONV_I);
6593 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6594 mono_mb_emit_byte (mb, CEE_ADD);
6595 mono_mb_emit_ldarg (mb, argnum);
6596 mono_mb_emit_ldloc (mb, conv_arg);
6597 mono_mb_emit_byte (mb, CEE_LDLEN);
6598 mono_mb_emit_icon (mb, esize);
6599 mono_mb_emit_byte (mb, CEE_MUL);
6600 mono_mb_emit_byte (mb, CEE_PREFIX1);
6601 mono_mb_emit_byte (mb, CEE_CPBLK);
6605 /* Emit marshalling loop */
6606 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6607 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6608 mono_mb_emit_stloc (mb, index_var);
6609 label2 = mono_mb_get_label (mb);
6610 mono_mb_emit_ldloc (mb, index_var);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_byte (mb, CEE_LDLEN);
6613 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6615 /* Emit marshalling code */
6617 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6619 mono_mb_emit_ldloc (mb, conv_arg);
6620 mono_mb_emit_ldloc (mb, index_var);
6622 mono_mb_emit_ldloc (mb, src_ptr);
6623 mono_mb_emit_byte (mb, CEE_LDIND_I);
6625 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6626 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6629 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6630 mono_mb_emit_exception_marshal_directive (mb, msg);
6634 mono_mb_emit_add_to_local (mb, index_var, 1);
6635 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6637 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6639 mono_mb_patch_branch (mb, label1);
6640 mono_mb_patch_branch (mb, label3);
6644 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6646 guint32 label1, label2, label3;
6647 int index_var, dest_ptr, esize, param_num, num_elem;
6648 MonoMarshalConv conv;
6649 gboolean is_string = FALSE;
6652 /* Already handled in CONV_IN */
6655 /* These are already checked in CONV_IN */
6656 g_assert (!t->byref);
6657 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6658 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6660 param_num = spec->data.array_data.param_num;
6661 num_elem = spec->data.array_data.num_elem;
6663 if (spec->data.array_data.elem_mult == 0)
6664 /* param_num is not specified */
6667 if (param_num == -1) {
6668 if (num_elem <= 0) {
6669 g_assert_not_reached ();
6673 /* FIXME: Optimize blittable case */
6675 eklass = klass->element_class;
6676 if (eklass == mono_defaults.string_class) {
6678 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6680 else if (eklass == mono_defaults.stringbuilder_class) {
6682 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6685 conv = MONO_MARSHAL_CONV_INVALID;
6687 mono_marshal_load_type_info (eklass);
6690 esize = sizeof (gpointer);
6692 esize = mono_class_native_size (eklass, NULL);
6694 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6697 mono_mb_emit_ldloc (mb, conv_arg);
6698 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6700 mono_mb_emit_ldarg (mb, argnum);
6701 mono_mb_emit_stloc (mb, dest_ptr);
6703 if (eklass->blittable) {
6705 mono_mb_emit_ldarg (mb, argnum);
6707 mono_mb_emit_ldloc (mb, conv_arg);
6708 mono_mb_emit_byte (mb, CEE_CONV_I);
6709 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6710 mono_mb_emit_byte (mb, CEE_ADD);
6712 mono_mb_emit_ldloc (mb, conv_arg);
6713 mono_mb_emit_byte (mb, CEE_LDLEN);
6714 mono_mb_emit_icon (mb, esize);
6715 mono_mb_emit_byte (mb, CEE_MUL);
6716 mono_mb_emit_byte (mb, CEE_PREFIX1);
6717 mono_mb_emit_byte (mb, CEE_CPBLK);
6721 /* Emit marshalling loop */
6722 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6723 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6724 mono_mb_emit_stloc (mb, index_var);
6725 label2 = mono_mb_get_label (mb);
6726 mono_mb_emit_ldloc (mb, index_var);
6727 mono_mb_emit_ldloc (mb, conv_arg);
6728 mono_mb_emit_byte (mb, CEE_LDLEN);
6729 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6731 /* Emit marshalling code */
6734 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6737 mono_mb_emit_ldloc (mb, dest_ptr);
6740 mono_mb_emit_ldloc (mb, conv_arg);
6741 mono_mb_emit_ldloc (mb, index_var);
6743 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6745 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6746 mono_mb_emit_byte (mb, stind_op);
6749 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6750 mono_mb_emit_exception_marshal_directive (mb, msg);
6754 mono_mb_emit_add_to_local (mb, index_var, 1);
6755 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6757 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6759 mono_mb_patch_branch (mb, label1);
6760 mono_mb_patch_branch (mb, label3);
6764 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6766 guint32 label1, label2, label3;
6767 int index_var, src, dest, esize;
6768 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6769 gboolean is_string = FALSE;
6771 g_assert (!t->byref);
6773 eklass = klass->element_class;
6775 mono_marshal_load_type_info (eklass);
6777 if (eklass == mono_defaults.string_class) {
6779 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6782 g_assert_not_reached ();
6786 esize = sizeof (gpointer);
6787 else if (eklass == mono_defaults.char_class)
6788 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6790 esize = mono_class_native_size (eklass, NULL);
6792 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6793 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6795 mono_mb_emit_stloc (mb, src);
6796 mono_mb_emit_ldloc (mb, src);
6797 mono_mb_emit_stloc (mb, 3);
6799 /* Check for null */
6800 mono_mb_emit_ldloc (mb, src);
6801 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6803 /* Allocate native array */
6804 mono_mb_emit_icon (mb, esize);
6805 mono_mb_emit_ldloc (mb, src);
6806 mono_mb_emit_byte (mb, CEE_LDLEN);
6808 if (eklass == mono_defaults.string_class) {
6809 /* Make the array bigger for the terminating null */
6810 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6811 mono_mb_emit_byte (mb, CEE_ADD);
6813 mono_mb_emit_byte (mb, CEE_MUL);
6814 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6815 mono_mb_emit_stloc (mb, dest);
6816 mono_mb_emit_ldloc (mb, dest);
6817 mono_mb_emit_stloc (mb, 3);
6819 /* Emit marshalling loop */
6820 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6821 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6822 mono_mb_emit_stloc (mb, index_var);
6823 label2 = mono_mb_get_label (mb);
6824 mono_mb_emit_ldloc (mb, index_var);
6825 mono_mb_emit_ldloc (mb, src);
6826 mono_mb_emit_byte (mb, CEE_LDLEN);
6827 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6829 /* Emit marshalling code */
6832 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6835 mono_mb_emit_ldloc (mb, dest);
6838 mono_mb_emit_ldloc (mb, src);
6839 mono_mb_emit_ldloc (mb, index_var);
6841 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6843 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6844 mono_mb_emit_byte (mb, stind_op);
6847 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6848 mono_mb_emit_exception_marshal_directive (mb, msg);
6852 mono_mb_emit_add_to_local (mb, index_var, 1);
6853 mono_mb_emit_add_to_local (mb, dest, esize);
6855 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6857 mono_mb_patch_branch (mb, label3);
6858 mono_mb_patch_branch (mb, label1);
6862 g_assert_not_reached ();
6869 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6872 return &mono_defaults.int32_class->byval_arg;
6874 switch (spec->native) {
6875 case MONO_NATIVE_I1:
6876 case MONO_NATIVE_U1:
6877 return &mono_defaults.byte_class->byval_arg;
6878 case MONO_NATIVE_VARIANTBOOL:
6879 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6880 return &mono_defaults.int16_class->byval_arg;
6881 case MONO_NATIVE_BOOLEAN:
6882 return &mono_defaults.int32_class->byval_arg;
6884 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6885 return &mono_defaults.int32_class->byval_arg;
6891 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6893 MonoClass* conv_arg_class = mono_defaults.int32_class;
6895 switch (spec->native) {
6896 case MONO_NATIVE_I1:
6897 case MONO_NATIVE_U1:
6898 conv_arg_class = mono_defaults.byte_class;
6899 if (ldop) *ldop = CEE_LDIND_I1;
6901 case MONO_NATIVE_VARIANTBOOL:
6902 conv_arg_class = mono_defaults.int16_class;
6903 if (ldop) *ldop = CEE_LDIND_I2;
6905 case MONO_NATIVE_BOOLEAN:
6908 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6911 return conv_arg_class;
6915 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6916 MonoMarshalSpec *spec,
6917 int conv_arg, MonoType **conv_arg_type,
6918 MarshalAction action)
6922 case MARSHAL_ACTION_CONV_IN:
6924 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6926 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6929 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6930 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6932 *conv_arg_type = &conv_arg_class->this_arg;
6934 *conv_arg_type = &conv_arg_class->byval_arg;
6940 MonoMethodBuilder *mb = m->mb;
6943 case MARSHAL_ACTION_CONV_IN: {
6944 MonoType *local_type;
6946 guint8 ldc_op = CEE_LDC_I4_1;
6948 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6950 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6952 *conv_arg_type = local_type;
6953 conv_arg = mono_mb_add_local (mb, local_type);
6955 mono_mb_emit_ldarg (mb, argnum);
6957 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6958 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6959 mono_mb_emit_byte (mb, ldc_op);
6960 mono_mb_emit_stloc (mb, conv_arg);
6961 mono_mb_patch_branch (mb, label_false);
6966 case MARSHAL_ACTION_CONV_OUT:
6968 int label_false, label_end;
6972 mono_mb_emit_ldarg (mb, argnum);
6973 mono_mb_emit_ldloc (mb, conv_arg);
6975 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6976 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6978 label_end = mono_mb_emit_branch (mb, CEE_BR);
6979 mono_mb_patch_branch (mb, label_false);
6980 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6981 mono_mb_patch_branch (mb, label_end);
6983 mono_mb_emit_byte (mb, CEE_STIND_I1);
6987 case MARSHAL_ACTION_PUSH:
6989 mono_mb_emit_ldloc_addr (mb, conv_arg);
6991 mono_mb_emit_ldloc (mb, conv_arg);
6993 mono_mb_emit_ldarg (mb, argnum);
6996 case MARSHAL_ACTION_CONV_RESULT:
6997 /* maybe we need to make sure that it fits within 8 bits */
6998 mono_mb_emit_stloc (mb, 3);
7001 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7002 MonoClass* conv_arg_class = mono_defaults.int32_class;
7003 guint8 ldop = CEE_LDIND_I4;
7004 int label_null, label_false;
7006 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7007 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7010 *conv_arg_type = &conv_arg_class->this_arg;
7012 *conv_arg_type = &conv_arg_class->byval_arg;
7015 mono_mb_emit_ldarg (mb, argnum);
7019 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7020 mono_mb_emit_ldarg (mb, argnum);
7021 mono_mb_emit_byte (mb, ldop);
7025 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7026 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7027 mono_mb_emit_stloc (mb, conv_arg);
7028 mono_mb_patch_branch (mb, label_false);
7031 mono_mb_patch_branch (mb, label_null);
7035 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7036 guint8 stop = CEE_STIND_I4;
7037 guint8 ldc_op = CEE_LDC_I4_1;
7038 int label_null,label_false, label_end;;
7043 switch (spec->native) {
7044 case MONO_NATIVE_I1:
7045 case MONO_NATIVE_U1:
7046 stop = CEE_STIND_I1;
7048 case MONO_NATIVE_VARIANTBOOL:
7049 stop = CEE_STIND_I2;
7050 ldc_op = CEE_LDC_I4_M1;
7058 mono_mb_emit_ldarg (mb, argnum);
7059 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7061 mono_mb_emit_ldarg (mb, argnum);
7062 mono_mb_emit_ldloc (mb, conv_arg);
7064 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7065 mono_mb_emit_byte (mb, ldc_op);
7066 label_end = mono_mb_emit_branch (mb, CEE_BR);
7068 mono_mb_patch_branch (mb, label_false);
7069 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7070 mono_mb_patch_branch (mb, label_end);
7072 mono_mb_emit_byte (mb, stop);
7073 mono_mb_patch_branch (mb, label_null);
7078 g_assert_not_reached ();
7085 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7086 MonoMarshalSpec *spec, int conv_arg,
7087 MonoType **conv_arg_type, MarshalAction action)
7090 MonoMethodBuilder *mb = m->mb;
7093 case MARSHAL_ACTION_CONV_IN:
7094 /* MS seems to allow this in some cases, ie. bxc #158 */
7096 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7097 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7098 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7103 case MARSHAL_ACTION_PUSH:
7104 mono_mb_emit_ldarg (mb, argnum);
7107 case MARSHAL_ACTION_CONV_RESULT:
7108 /* no conversions necessary */
7109 mono_mb_emit_stloc (mb, 3);
7120 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7121 MonoMarshalSpec *spec, int conv_arg,
7122 MonoType **conv_arg_type, MarshalAction action)
7125 MonoMethodBuilder *mb = m->mb;
7128 case MARSHAL_ACTION_PUSH:
7129 /* fixme: dont know how to marshal that. We cant simply
7130 * convert it to a one byte UTF8 character, because an
7131 * unicode character may need more that one byte in UTF8 */
7132 mono_mb_emit_ldarg (mb, argnum);
7135 case MARSHAL_ACTION_CONV_RESULT:
7136 /* fixme: we need conversions here */
7137 mono_mb_emit_stloc (mb, 3);
7148 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7149 MonoMarshalSpec *spec, int conv_arg,
7150 MonoType **conv_arg_type, MarshalAction action)
7153 MonoMethodBuilder *mb = m->mb;
7156 case MARSHAL_ACTION_PUSH:
7157 mono_mb_emit_ldarg (mb, argnum);
7160 case MARSHAL_ACTION_CONV_RESULT:
7161 /* no conversions necessary */
7162 mono_mb_emit_stloc (mb, 3);
7173 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7174 MonoMarshalSpec *spec, int conv_arg,
7175 MonoType **conv_arg_type, MarshalAction action)
7177 /* Ensure that we have marshalling info for this param */
7178 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7180 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7181 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 if (spec && spec->native == MONO_NATIVE_ASANY)
7184 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7187 case MONO_TYPE_VALUETYPE:
7188 if (t->data.klass == mono_defaults.handleref_class)
7189 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7191 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7192 case MONO_TYPE_STRING:
7193 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7194 case MONO_TYPE_CLASS:
7195 case MONO_TYPE_OBJECT:
7196 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7197 if (spec && spec->native == MONO_NATIVE_STRUCT)
7198 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7201 #if !defined(DISABLE_COM)
7202 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7203 spec->native == MONO_NATIVE_IDISPATCH ||
7204 spec->native == MONO_NATIVE_INTERFACE))
7205 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7206 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7207 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7208 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7209 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7213 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7214 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7216 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7217 case MONO_TYPE_ARRAY:
7218 case MONO_TYPE_SZARRAY:
7219 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7220 case MONO_TYPE_BOOLEAN:
7221 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7223 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7224 case MONO_TYPE_CHAR:
7225 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7238 case MONO_TYPE_FNPTR:
7239 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7240 case MONO_TYPE_GENERICINST:
7241 if (mono_type_generic_inst_is_valuetype (t))
7242 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7244 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7252 * mono_marshal_emit_native_wrapper:
7253 * @image: the image to use for looking up custom marshallers
7254 * @sig: The signature of the native function
7255 * @piinfo: Marshalling information
7256 * @mspecs: Marshalling information
7257 * @aot: whenever the created method will be compiled by the AOT compiler
7258 * @method: if non-NULL, the pinvoke method to call
7259 * @check_exceptions: Whenever to check for pending exceptions after the native call
7260 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7262 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7265 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)
7267 EmitMarshalContext m;
7268 MonoMethodSignature *csig;
7270 MonoExceptionClause *clause;
7271 int i, argnum, *tmp_locals;
7272 int type, param_shift = 0;
7273 static MonoMethodSignature *get_last_error_sig = NULL;
7274 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7277 memset (&m, 0, sizeof (m));
7282 /* we copy the signature, so that we can set pinvoke to 0 */
7284 /* The function address is passed as the first argument */
7285 g_assert (!sig->hasthis);
7288 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7296 /* we allocate local for use with emit_struct_conv() */
7297 /* allocate local 0 (pointer) src_ptr */
7298 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7299 /* allocate local 1 (pointer) dst_ptr */
7300 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7301 /* allocate local 2 (boolean) delete_old */
7302 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7304 /* delete_old = FALSE */
7305 mono_mb_emit_icon (mb, 0);
7306 mono_mb_emit_stloc (mb, 2);
7308 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7309 /* allocate local 3 to store the return value */
7310 mono_mb_add_local (mb, sig->ret);
7313 if (mono_threads_is_coop_enabled ()) {
7314 /* local 4, dummy local used to get a stack address for suspend funcs */
7315 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7316 /* local 5, the local to be used when calling the suspend funcs */
7317 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7318 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7320 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7321 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7324 if (MONO_TYPE_ISSTRUCT (sig->ret))
7325 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7327 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7328 /* Return type custom marshaling */
7330 * Since we can't determine the return type of the unmanaged function,
7331 * we assume it returns a pointer, and pass that pointer to
7332 * MarshalNativeToManaged.
7334 csig->ret = &mono_defaults.int_class->byval_arg;
7337 /* we first do all conversions */
7338 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7339 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7341 for (i = 0; i < sig->param_count; i ++) {
7342 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7345 // In coop mode need to register blocking state during native call
7346 if (mono_threads_is_coop_enabled ()) {
7347 // Perform an extra, early lookup of the function address, so any exceptions
7348 // potentially resulting from the lookup occur before entering blocking mode.
7349 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7350 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7351 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7352 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7355 clause->try_offset = mono_mb_get_label (mb);
7357 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7358 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7359 mono_mb_emit_stloc (mb, coop_gc_var);
7362 /* push all arguments */
7365 mono_mb_emit_byte (mb, CEE_LDARG_0);
7367 for (i = 0; i < sig->param_count; i++) {
7368 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7371 /* call the native method */
7373 mono_mb_emit_byte (mb, CEE_LDARG_0);
7374 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7375 mono_mb_emit_byte (mb, CEE_LDIND_I);
7376 mono_mb_emit_calli (mb, csig);
7377 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7379 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7381 g_assert_not_reached ();
7386 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7387 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7388 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7389 mono_mb_emit_calli (mb, csig);
7391 mono_mb_emit_native_call (mb, csig, func);
7395 /* Set LastError if needed */
7396 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7397 if (!get_last_error_sig) {
7398 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7399 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7400 get_last_error_sig->pinvoke = 1;
7405 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7406 * clobber its value.
7408 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7409 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7411 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7415 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7416 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7417 mono_class_init (klass);
7418 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7419 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7420 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7421 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7422 mono_mb_emit_stloc (mb, m.vtaddr_var);
7426 /* Unblock before converting the result, since that can involve calls into the runtime */
7427 if (mono_threads_is_coop_enabled ()) {
7428 mono_mb_emit_ldloc (mb, coop_gc_var);
7429 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7430 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7431 mono_mb_emit_icon (mb, 1);
7432 mono_mb_emit_stloc (mb, coop_unblocked_var);
7435 /* convert the result */
7436 if (!sig->ret->byref) {
7437 MonoMarshalSpec *spec = mspecs [0];
7438 type = sig->ret->type;
7440 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7441 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7445 case MONO_TYPE_VOID:
7447 case MONO_TYPE_VALUETYPE:
7448 klass = sig->ret->data.klass;
7449 if (klass->enumtype) {
7450 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7453 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7467 case MONO_TYPE_FNPTR:
7468 case MONO_TYPE_STRING:
7469 case MONO_TYPE_CLASS:
7470 case MONO_TYPE_OBJECT:
7471 case MONO_TYPE_BOOLEAN:
7472 case MONO_TYPE_ARRAY:
7473 case MONO_TYPE_SZARRAY:
7474 case MONO_TYPE_CHAR:
7476 case MONO_TYPE_GENERICINST:
7477 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7479 case MONO_TYPE_TYPEDBYREF:
7481 g_warning ("return type 0x%02x unknown", sig->ret->type);
7482 g_assert_not_reached ();
7486 mono_mb_emit_stloc (mb, 3);
7489 if (mono_threads_is_coop_enabled ()) {
7492 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7494 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7495 clause->handler_offset = mono_mb_get_label (mb);
7497 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7498 mono_mb_emit_icon (mb, 1);
7499 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7501 mono_mb_emit_ldloc (mb, coop_gc_var);
7502 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7503 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7505 mono_mb_patch_branch (mb, pos);
7507 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7509 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7511 mono_mb_patch_branch (mb, leave_pos);
7515 * Need to call this after converting the result since MONO_VTADDR needs
7516 * to be adjacent to the call instruction.
7518 if (check_exceptions)
7519 emit_thread_interrupt_checkpoint (mb);
7521 /* we need to convert byref arguments back and free string arrays */
7522 for (i = 0; i < sig->param_count; i++) {
7523 MonoType *t = sig->params [i];
7524 MonoMarshalSpec *spec = mspecs [i + 1];
7526 argnum = i + param_shift;
7528 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7529 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7534 case MONO_TYPE_STRING:
7535 case MONO_TYPE_VALUETYPE:
7536 case MONO_TYPE_CLASS:
7537 case MONO_TYPE_OBJECT:
7538 case MONO_TYPE_SZARRAY:
7539 case MONO_TYPE_BOOLEAN:
7540 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7547 if (!MONO_TYPE_IS_VOID(sig->ret))
7548 mono_mb_emit_ldloc (mb, 3);
7550 mono_mb_emit_byte (mb, CEE_RET);
7552 if (mono_threads_is_coop_enabled ()) {
7553 mono_mb_set_clauses (mb, 1, clause);
7556 #endif /* DISABLE_JIT */
7559 * mono_marshal_get_native_wrapper:
7560 * @method: The MonoMethod to wrap.
7561 * @check_exceptions: Whenever to check for pending exceptions
7563 * generates IL code for the pinvoke wrapper (the generated method
7564 * calls the unmanaged code in piinfo->addr)
7565 * The wrapper info for the wrapper is a WrapperInfo structure.
7568 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7570 MonoMethodSignature *sig, *csig;
7571 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7572 MonoMethodBuilder *mb;
7573 MonoMarshalSpec **mspecs;
7576 gboolean pinvoke = FALSE;
7579 const char *exc_class = "MissingMethodException";
7580 const char *exc_arg = NULL;
7583 g_assert (method != NULL);
7584 g_assert (mono_method_signature (method)->pinvoke);
7586 GHashTable **cache_ptr;
7589 if (check_exceptions)
7590 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7592 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7594 if (check_exceptions)
7595 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7597 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7600 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7602 if ((res = mono_marshal_find_in_cache (cache, method)))
7605 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7606 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7610 return mono_cominterop_get_native_wrapper (method);
7612 g_assert_not_reached ();
7616 sig = mono_method_signature (method);
7618 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7619 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7622 if (!piinfo->addr) {
7624 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7625 exc_arg = "Method contains unsupported native code";
7627 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7629 piinfo->addr = mono_lookup_internal_call (method);
7633 /* hack - redirect certain string constructors to CreateString */
7634 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7635 g_assert (!pinvoke);
7636 g_assert (method->string_ctor);
7637 g_assert (sig->hasthis);
7639 /* CreateString returns a value */
7640 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7641 csig->ret = &mono_defaults.string_class->byval_arg;
7645 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7646 if (!strcmp ("CreateString", res->name) &&
7647 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7650 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7651 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7653 /* create a wrapper to preserve .ctor in stack trace */
7654 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7657 mono_mb_emit_byte (mb, CEE_LDARG_0);
7658 for (i = 1; i <= csig->param_count; i++)
7659 mono_mb_emit_ldarg (mb, i);
7660 mono_mb_emit_managed_call (mb, res, NULL);
7661 mono_mb_emit_byte (mb, CEE_RET);
7664 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7665 info->d.string_ctor.method = method;
7667 /* use native_wrapper_cache because internal calls are looked up there */
7668 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7669 csig->param_count + 1, info, NULL);
7676 /* exception will be thrown */
7677 piinfo->addr = NULL;
7678 g_warning ("cannot find CreateString for .ctor");
7681 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7683 mb->method->save_lmf = 1;
7686 * In AOT mode and embedding scenarios, it is possible that the icall is not
7687 * registered in the runtime doing the AOT compilation.
7689 if (!piinfo->addr && !aot) {
7691 mono_mb_emit_exception (mb, exc_class, exc_arg);
7693 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7694 info->d.managed_to_native.method = method;
7696 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7698 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7699 csig->param_count + 16, info, NULL);
7705 /* internal calls: we simply push all arguments and call the method (no conversions) */
7706 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7708 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7710 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7712 /* hack - string constructors returns a value */
7713 if (method->string_ctor)
7714 csig->ret = &mono_defaults.string_class->byval_arg;
7721 * Add a null check since public icalls can be called with 'call' which
7722 * does no such check.
7724 mono_mb_emit_byte (mb, CEE_LDARG_0);
7725 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7726 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7727 mono_mb_patch_branch (mb, pos);
7729 mono_mb_emit_byte (mb, CEE_LDARG_0);
7732 for (i = 0; i < sig->param_count; i++)
7733 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7736 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7737 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7738 mono_mb_emit_calli (mb, csig);
7740 g_assert (piinfo->addr);
7741 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7743 if (check_exceptions)
7744 emit_thread_interrupt_checkpoint (mb);
7745 mono_mb_emit_byte (mb, CEE_RET);
7747 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7748 info->d.managed_to_native.method = method;
7750 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7752 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7761 g_assert (piinfo->addr);
7764 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7765 mono_method_get_marshal_info (method, mspecs);
7767 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7769 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7770 info->d.managed_to_native.method = method;
7772 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7774 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7779 for (i = sig->param_count; i >= 0; i--)
7781 mono_metadata_free_marshal_spec (mspecs [i]);
7785 /* mono_method_print_code (res); */
7791 * mono_marshal_get_native_func_wrapper:
7792 * @image: The image to use for memory allocation and for looking up custom marshallers.
7793 * @sig: The signature of the function
7794 * @func: The native function to wrap
7796 * Returns a wrapper method around native functions, similar to the pinvoke
7800 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7801 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7803 MonoMethodSignature *csig;
7805 SignaturePointerPair key, *new_key;
7806 MonoMethodBuilder *mb;
7815 // Generic types are not safe to place in MonoImage caches.
7816 g_assert (!sig->is_inflated);
7818 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7819 if ((res = mono_marshal_find_in_cache (cache, &key)))
7822 name = g_strdup_printf ("wrapper_native_%p", func);
7823 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7824 mb->method->save_lmf = 1;
7827 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7830 csig = mono_metadata_signature_dup_full (image, sig);
7833 new_key = g_new (SignaturePointerPair,1);
7834 new_key->sig = csig;
7835 new_key->pointer = func;
7837 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7843 mono_marshal_set_wrapper_info (res, NULL);
7849 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7853 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7855 MonoMethodSignature *sig, *csig;
7856 MonoMethodBuilder *mb;
7861 MonoMethodPInvoke mpiinfo;
7862 MonoMethodPInvoke *piinfo = &mpiinfo;
7863 MonoMarshalSpec **mspecs;
7864 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7865 MonoImage *image = invoke->klass->image;
7868 // FIXME: include UnmanagedFunctionPointerAttribute info
7871 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7873 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7875 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7878 memset (&mpiinfo, 0, sizeof (mpiinfo));
7879 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7881 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7882 mono_method_get_marshal_info (invoke, mspecs);
7883 /* Freed below so don't alloc from mempool */
7884 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7887 name = g_strdup_printf ("wrapper_aot_native");
7888 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7889 mb->method->save_lmf = 1;
7892 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7895 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7896 info->d.managed_to_native.method = invoke;
7898 g_assert (!sig->hasthis);
7899 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7901 res = mono_mb_create_and_cache_full (cache, invoke,
7902 mb, csig, csig->param_count + 16,
7906 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7908 mono_metadata_free_marshal_spec (mspecs [i]);
7916 * mono_marshal_emit_managed_wrapper:
7918 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7919 * the delegate which wraps the managed method to be called. For closed delegates,
7920 * it could have fewer parameters than the method it wraps.
7921 * THIS_LOC is the memory location where the target of the delegate is stored.
7924 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7927 MonoMethodSignature *sig, *csig;
7933 /* we first do all conversions */
7934 for (i = 0; i < sig->param_count; i ++) {
7935 MonoType *t = sig->params [i];
7938 case MONO_TYPE_OBJECT:
7939 case MONO_TYPE_CLASS:
7940 case MONO_TYPE_VALUETYPE:
7941 case MONO_TYPE_ARRAY:
7942 case MONO_TYPE_SZARRAY:
7943 case MONO_TYPE_STRING:
7944 case MONO_TYPE_BOOLEAN:
7945 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7949 if (!sig->ret->byref) {
7950 switch (sig->ret->type) {
7951 case MONO_TYPE_STRING:
7952 csig->ret = &mono_defaults.int_class->byval_arg;
7959 MonoMethodSignature *sig, *csig;
7960 MonoExceptionClause *clause;
7963 gboolean closed = FALSE;
7968 /* allocate local 0 (pointer) src_ptr */
7969 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7970 /* allocate local 1 (pointer) dst_ptr */
7971 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7972 /* allocate local 2 (boolean) delete_old */
7973 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7975 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7976 /* Closed delegate */
7977 g_assert (sig->param_count == invoke_sig->param_count + 1);
7979 /* Use a new signature without the first argument */
7980 sig = mono_metadata_signature_dup (sig);
7981 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7982 sig->param_count --;
7985 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7986 /* allocate local 3 to store the return value */
7987 mono_mb_add_local (mb, sig->ret);
7990 if (MONO_TYPE_ISSTRUCT (sig->ret))
7991 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7995 * mono_jit_attach ();
7999 * ret = method (...);
8001 * mono_jit_detach ();
8007 if (mono_threads_is_coop_enabled ()) {
8008 clause = g_new0 (MonoExceptionClause, 1);
8009 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8012 mono_mb_emit_icon (mb, 0);
8013 mono_mb_emit_stloc (mb, 2);
8015 if (mono_threads_is_coop_enabled ()) {
8017 clause->try_offset = mono_mb_get_label (mb);
8021 * Might need to attach the thread to the JIT or change the
8022 * domain for the callback.
8024 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8026 * mono_jit_attach ();
8028 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8029 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8031 /* <interrupt check> */
8032 emit_thread_interrupt_checkpoint (mb);
8034 /* we first do all conversions */
8035 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8036 for (i = 0; i < sig->param_count; i ++) {
8037 MonoType *t = sig->params [i];
8040 case MONO_TYPE_OBJECT:
8041 case MONO_TYPE_CLASS:
8042 case MONO_TYPE_VALUETYPE:
8043 case MONO_TYPE_ARRAY:
8044 case MONO_TYPE_SZARRAY:
8045 case MONO_TYPE_STRING:
8046 case MONO_TYPE_BOOLEAN:
8047 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8057 if (target_handle) {
8058 mono_mb_emit_icon (mb, (gint32)target_handle);
8059 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8062 g_assert_not_reached ();
8064 } else if (closed) {
8065 mono_mb_emit_icon (mb, (gint32)target_handle);
8066 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8069 for (i = 0; i < sig->param_count; i++) {
8070 MonoType *t = sig->params [i];
8072 if (tmp_locals [i]) {
8074 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8076 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8079 mono_mb_emit_ldarg (mb, i);
8082 /* ret = method (...) */
8083 mono_mb_emit_managed_call (mb, method, NULL);
8085 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8086 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8087 mono_class_init (klass);
8088 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8089 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8090 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8091 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8092 mono_mb_emit_stloc (mb, m->vtaddr_var);
8096 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8097 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8098 } else if (!sig->ret->byref) {
8099 switch (sig->ret->type) {
8100 case MONO_TYPE_VOID:
8102 case MONO_TYPE_BOOLEAN:
8105 case MONO_TYPE_CHAR:
8117 case MONO_TYPE_OBJECT:
8118 mono_mb_emit_stloc (mb, 3);
8120 case MONO_TYPE_STRING:
8121 csig->ret = &mono_defaults.int_class->byval_arg;
8122 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8124 case MONO_TYPE_VALUETYPE:
8125 case MONO_TYPE_CLASS:
8126 case MONO_TYPE_SZARRAY:
8127 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8130 g_warning ("return type 0x%02x unknown", sig->ret->type);
8131 g_assert_not_reached ();
8134 mono_mb_emit_stloc (mb, 3);
8137 /* Convert byref arguments back */
8138 for (i = 0; i < sig->param_count; i ++) {
8139 MonoType *t = sig->params [i];
8140 MonoMarshalSpec *spec = mspecs [i + 1];
8142 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8143 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8145 else if (t->byref) {
8147 case MONO_TYPE_CLASS:
8148 case MONO_TYPE_VALUETYPE:
8149 case MONO_TYPE_OBJECT:
8150 case MONO_TYPE_STRING:
8151 case MONO_TYPE_BOOLEAN:
8152 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8158 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8159 /* The [Out] information is encoded in the delegate signature */
8161 case MONO_TYPE_SZARRAY:
8162 case MONO_TYPE_CLASS:
8163 case MONO_TYPE_VALUETYPE:
8164 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8167 g_assert_not_reached ();
8172 if (mono_threads_is_coop_enabled ()) {
8173 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8176 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8177 clause->handler_offset = mono_mb_get_label (mb);
8181 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8183 * mono_jit_detach ();
8185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8186 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8188 if (mono_threads_is_coop_enabled ()) {
8189 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8191 /* } [endfinally] */
8192 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8194 mono_mb_patch_branch (mb, leave_pos);
8198 if (m->retobj_var) {
8199 mono_mb_emit_ldloc (mb, m->retobj_var);
8200 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8201 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8204 if (!MONO_TYPE_IS_VOID(sig->ret))
8205 mono_mb_emit_ldloc (mb, 3);
8206 mono_mb_emit_byte (mb, CEE_RET);
8209 if (mono_threads_is_coop_enabled ()) {
8210 mono_mb_set_clauses (mb, 1, clause);
8219 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8221 MonoMethodSignature *sig;
8226 * Under windows, delegates passed to native code must use the STDCALL
8227 * calling convention.
8229 csig->call_convention = MONO_CALL_STDCALL;
8232 sig = mono_method_signature (method);
8234 /* Change default calling convention if needed */
8235 /* Why is this a modopt ? */
8236 if (sig->ret && sig->ret->num_mods) {
8237 for (i = 0; i < sig->ret->num_mods; ++i) {
8239 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8240 g_assert (mono_error_ok (&error));
8241 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8242 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8243 csig->call_convention = MONO_CALL_C;
8244 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8245 csig->call_convention = MONO_CALL_STDCALL;
8246 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8247 csig->call_convention = MONO_CALL_FASTCALL;
8248 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8249 csig->call_convention = MONO_CALL_THISCALL;
8256 * generates IL code to call managed methods from unmanaged code
8257 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8260 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8263 MonoMethodSignature *sig, *csig, *invoke_sig;
8264 MonoMethodBuilder *mb;
8265 MonoMethod *res, *invoke;
8266 MonoMarshalSpec **mspecs;
8267 MonoMethodPInvoke piinfo;
8270 EmitMarshalContext m;
8272 g_assert (method != NULL);
8273 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8276 * FIXME: Should cache the method+delegate type pair, since the same method
8277 * could be called with different delegates, thus different marshalling
8280 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8282 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8285 invoke = mono_get_delegate_invoke (delegate_klass);
8286 invoke_sig = mono_method_signature (invoke);
8288 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8289 mono_method_get_marshal_info (invoke, mspecs);
8291 sig = mono_method_signature (method);
8293 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8295 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8296 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8298 /* we copy the signature, so that we can modify it */
8300 /* Need to free this later */
8301 csig = mono_metadata_signature_dup (invoke_sig);
8303 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8307 memset (&m, 0, sizeof (m));
8313 m.image = method->klass->image;
8315 mono_marshal_set_callconv_from_modopt (invoke, csig);
8317 /* The attribute is only available in Net 2.0 */
8318 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8319 MonoCustomAttrInfo *cinfo;
8320 MonoCustomAttrEntry *attr;
8323 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8324 * contents of the attribute without constructing it, as that might not be
8325 * possible when running in cross-compiling mode.
8327 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8328 mono_error_assert_ok (&error);
8331 for (i = 0; i < cinfo->num_attrs; ++i) {
8332 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8333 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8334 attr = &cinfo->attrs [i];
8340 MonoArray *typed_args, *named_args;
8341 CattrNamedArg *arginfo;
8345 MonoBoolean set_last_error = 0;
8348 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8349 g_assert (mono_error_ok (&error));
8350 g_assert (mono_array_length (typed_args) == 1);
8353 o = mono_array_get (typed_args, MonoObject*, 0);
8354 call_conv = *(gint32*)mono_object_unbox (o);
8357 for (i = 0; i < mono_array_length (named_args); ++i) {
8358 CattrNamedArg *narg = &arginfo [i];
8360 o = mono_array_get (named_args, MonoObject*, i);
8362 g_assert (narg->field);
8363 if (!strcmp (narg->field->name, "CharSet")) {
8364 charset = *(gint32*)mono_object_unbox (o);
8365 } else if (!strcmp (narg->field->name, "SetLastError")) {
8366 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8367 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8368 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8369 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8370 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8372 g_assert_not_reached ();
8378 memset (&piinfo, 0, sizeof (piinfo));
8380 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8382 csig->call_convention = call_conv - 1;
8385 if (cinfo && !cinfo->cached)
8386 mono_custom_attrs_free (cinfo);
8389 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8391 if (!target_handle) {
8394 // FIXME: Associate it with the method+delegate_klass pair
8395 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8396 info->d.native_to_managed.method = method;
8397 info->d.native_to_managed.klass = delegate_klass;
8399 res = mono_mb_create_and_cache_full (cache, method,
8400 mb, csig, sig->param_count + 16,
8406 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8410 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8412 mono_metadata_free_marshal_spec (mspecs [i]);
8415 /* mono_method_print_code (res); */
8421 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8425 MonoMethodSignature *sig;
8426 MonoMethodBuilder *mb;
8431 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8433 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8436 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8437 MonoMethodSignature *csig;
8438 MonoMarshalSpec **mspecs;
8439 EmitMarshalContext m;
8441 sig = mono_method_signature (method);
8442 g_assert (!sig->hasthis);
8444 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8445 mono_method_get_marshal_info (method, mspecs);
8447 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8448 csig = mono_metadata_signature_dup_full (image, sig);
8452 memset (&m, 0, sizeof (m));
8460 mono_marshal_set_callconv_from_modopt (method, csig);
8462 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8464 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8469 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8472 for (i = sig->param_count; i >= 0; i--)
8474 mono_metadata_free_marshal_spec (mspecs [i]);
8477 return mono_compile_method (method);
8480 sig = mono_method_signature (method);
8481 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8483 param_count = sig->param_count + sig->hasthis;
8485 for (i = 0; i < param_count; i++)
8486 mono_mb_emit_ldarg (mb, i);
8488 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8489 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8491 mono_mb_emit_op (mb, CEE_CALL, method);
8492 mono_mb_emit_byte (mb, CEE_RET);
8497 method = mono_mb_create (mb, sig, param_count, NULL);
8500 return mono_compile_method (method);
8506 * The code directly following this is the cache hit, value positive branch
8508 * This function takes a new method builder with 0 locals and adds two locals
8509 * to create multiple out-branches and the fall through state of having the object
8510 * on the stack after a cache miss
8513 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8514 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8515 MonoMethodBuilder *mb)
8519 /* allocate local 0 (pointer) obj_vtable */
8520 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8521 /* allocate local 1 (pointer) cached_vtable */
8522 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8525 mono_mb_emit_ldarg (mb, obj_arg_position);
8526 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8528 /*obj_vtable = obj->vtable;*/
8529 mono_mb_emit_ldarg (mb, obj_arg_position);
8530 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8531 mono_mb_emit_byte (mb, CEE_LDIND_I);
8532 mono_mb_emit_stloc (mb, 0);
8534 /* cached_vtable = *cache*/
8535 mono_mb_emit_ldarg (mb, cache_arg_position);
8536 mono_mb_emit_byte (mb, CEE_LDIND_I);
8537 mono_mb_emit_stloc (mb, 1);
8539 mono_mb_emit_ldloc (mb, 1);
8540 mono_mb_emit_byte (mb, CEE_LDC_I4);
8541 mono_mb_emit_i4 (mb, ~0x1);
8542 mono_mb_emit_byte (mb, CEE_CONV_I);
8543 mono_mb_emit_byte (mb, CEE_AND);
8544 mono_mb_emit_ldloc (mb, 0);
8545 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8546 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8548 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8549 mono_mb_emit_ldloc (mb, 1);
8550 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8551 mono_mb_emit_byte (mb, CEE_CONV_U);
8552 mono_mb_emit_byte (mb, CEE_AND);
8553 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8554 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8557 mono_mb_patch_branch (mb, cache_miss_pos);
8560 mono_mb_emit_ldarg (mb, obj_arg_position);
8561 mono_mb_emit_ldarg (mb, class_arg_position);
8562 mono_mb_emit_ldarg (mb, cache_arg_position);
8563 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8566 #endif /* DISABLE_JIT */
8569 * This does the equivalent of mono_object_castclass_with_cache.
8570 * The wrapper info for the wrapper is a WrapperInfo structure.
8573 mono_marshal_get_castclass_with_cache (void)
8575 static MonoMethod *cached;
8577 MonoMethodBuilder *mb;
8578 MonoMethodSignature *sig;
8579 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8582 const int obj_arg_position = 0;
8583 const int class_arg_position = 1;
8584 const int cache_arg_position = 2;
8589 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8590 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8591 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8592 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8593 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8594 sig->ret = &mono_defaults.object_class->byval_arg;
8598 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8599 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8600 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8603 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8604 mono_mb_emit_ldarg (mb, obj_arg_position);
8605 mono_mb_emit_byte (mb, CEE_RET);
8608 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8609 mono_mb_patch_branch (mb, invalid_cast_pos);
8610 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8613 mono_mb_patch_branch (mb, return_null_pos);
8614 mono_mb_emit_byte (mb, CEE_LDNULL);
8615 mono_mb_emit_byte (mb, CEE_RET);
8616 #endif /* DISABLE_JIT */
8618 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8619 res = mono_mb_create (mb, sig, 8, info);
8622 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8623 mono_free_method (res);
8624 mono_metadata_free_method_signature (sig);
8632 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8635 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8636 mono_error_raise_exception (&error); /* FIXME don't raise here */
8638 #ifndef DISABLE_REMOTING
8639 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8643 uintptr_t cache_update = (uintptr_t)obj->vtable;
8645 cache_update = cache_update | 0x1;
8647 *cache = cache_update;
8653 * This does the equivalent of mono_object_isinst_with_cache.
8654 * The wrapper info for the wrapper is a WrapperInfo structure.
8657 mono_marshal_get_isinst_with_cache (void)
8659 static MonoMethod *cached;
8661 MonoMethodBuilder *mb;
8662 MonoMethodSignature *sig;
8663 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8666 const int obj_arg_position = 0;
8667 const int class_arg_position = 1;
8668 const int cache_arg_position = 2;
8673 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8674 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8676 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8678 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8680 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8681 sig->ret = &mono_defaults.object_class->byval_arg;
8685 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8686 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8687 // Return the object gotten via the slow path.
8688 mono_mb_emit_byte (mb, CEE_RET);
8691 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8692 mono_mb_patch_branch (mb, return_null_pos);
8693 mono_mb_emit_byte (mb, CEE_LDNULL);
8694 mono_mb_emit_byte (mb, CEE_RET);
8697 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8698 mono_mb_emit_ldarg (mb, obj_arg_position);
8699 mono_mb_emit_byte (mb, CEE_RET);
8702 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8703 res = mono_mb_create (mb, sig, 8, info);
8706 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8707 mono_free_method (res);
8708 mono_metadata_free_method_signature (sig);
8716 * mono_marshal_get_isinst:
8717 * @klass: the type of the field
8719 * This method generates a function which can be used to check if an object is
8720 * an instance of the given type, icluding the case where the object is a proxy.
8721 * The generated function has the following signature:
8722 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8725 mono_marshal_get_isinst (MonoClass *klass)
8727 static MonoMethodSignature *isint_sig = NULL;
8731 int pos_was_ok, pos_end;
8732 #ifndef DISABLE_REMOTING
8733 int pos_end2, pos_failed;
8736 MonoMethodBuilder *mb;
8738 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8739 if ((res = mono_marshal_find_in_cache (cache, klass)))
8743 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8744 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8745 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8746 isint_sig->pinvoke = 0;
8749 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8750 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8753 mb->method->save_lmf = 1;
8756 /* check if the object is a proxy that needs special cast */
8757 mono_mb_emit_ldarg (mb, 0);
8758 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8759 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8761 /* The result of MONO_CISINST can be:
8762 0) the type check succeeded
8763 1) the type check did not succeed
8764 2) a CanCastTo call is needed */
8765 #ifndef DISABLE_REMOTING
8766 mono_mb_emit_byte (mb, CEE_DUP);
8767 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8769 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8770 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8772 /* get the real proxy from the transparent proxy*/
8774 mono_mb_emit_ldarg (mb, 0);
8775 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8776 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8780 mono_mb_patch_branch (mb, pos_failed);
8781 mono_mb_emit_byte (mb, CEE_LDNULL);
8782 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8786 mono_mb_patch_branch (mb, pos_was_ok);
8787 mono_mb_emit_byte (mb, CEE_POP);
8788 mono_mb_emit_ldarg (mb, 0);
8792 mono_mb_patch_branch (mb, pos_end);
8793 mono_mb_patch_branch (mb, pos_end2);
8794 mono_mb_emit_byte (mb, CEE_RET);
8796 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8800 mono_mb_emit_byte (mb, CEE_LDNULL);
8801 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8805 mono_mb_patch_branch (mb, pos_was_ok);
8806 mono_mb_emit_ldarg (mb, 0);
8810 mono_mb_patch_branch (mb, pos_end);
8811 mono_mb_emit_byte (mb, CEE_RET);
8812 #endif /* DISABLE_REMOTING */
8813 #endif /* DISABLE_JIT */
8815 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8816 info->d.proxy.klass = klass;
8817 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8824 * mono_marshal_get_castclass:
8825 * @klass: the type of the field
8827 * This method generates a function which can be used to cast an object to
8828 * an instance of the given type, icluding the case where the object is a proxy.
8829 * The generated function has the following signature:
8830 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8831 * The wrapper info for the wrapper is a WrapperInfo structure.
8834 mono_marshal_get_castclass (MonoClass *klass)
8836 static MonoMethodSignature *castclass_sig = NULL;
8839 #ifndef DISABLE_REMOTING
8840 int pos_was_ok, pos_was_ok2;
8843 MonoMethodBuilder *mb;
8846 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8847 if ((res = mono_marshal_find_in_cache (cache, klass)))
8850 if (!castclass_sig) {
8851 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8852 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8853 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8854 castclass_sig->pinvoke = 0;
8857 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8858 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8861 mb->method->save_lmf = 1;
8864 /* check if the object is a proxy that needs special cast */
8865 mono_mb_emit_ldarg (mb, 0);
8866 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8867 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8869 /* The result of MONO_CCASTCLASS can be:
8870 0) the cast is valid
8871 1) cast of unknown proxy type
8872 or an exception if the cast is is invalid
8874 #ifndef DISABLE_REMOTING
8875 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8877 /* get the real proxy from the transparent proxy*/
8879 mono_mb_emit_ldarg (mb, 0);
8880 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8881 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8884 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8887 mono_mb_patch_branch (mb, pos_was_ok);
8888 mono_mb_patch_branch (mb, pos_was_ok2);
8890 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8891 mono_mb_emit_byte (mb, CEE_POP);
8892 #endif /* DISABLE_REMOTING */
8894 mono_mb_emit_ldarg (mb, 0);
8897 mono_mb_emit_byte (mb, CEE_RET);
8898 #endif /* DISABLE_JIT */
8900 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8902 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8910 * mono_marshal_get_struct_to_ptr:
8913 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8914 * The wrapper info for the wrapper is a WrapperInfo structure.
8917 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8919 MonoMethodBuilder *mb;
8920 static MonoMethod *stoptr = NULL;
8924 g_assert (klass != NULL);
8926 mono_marshal_load_type_info (klass);
8928 if (klass->marshal_info->str_to_ptr)
8929 return klass->marshal_info->str_to_ptr;
8932 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8935 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8938 if (klass->blittable) {
8939 mono_mb_emit_byte (mb, CEE_LDARG_1);
8940 mono_mb_emit_byte (mb, CEE_LDARG_0);
8941 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8942 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8943 mono_mb_emit_byte (mb, CEE_PREFIX1);
8944 mono_mb_emit_byte (mb, CEE_CPBLK);
8947 /* allocate local 0 (pointer) src_ptr */
8948 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8949 /* allocate local 1 (pointer) dst_ptr */
8950 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8951 /* allocate local 2 (boolean) delete_old */
8952 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8953 mono_mb_emit_byte (mb, CEE_LDARG_2);
8954 mono_mb_emit_stloc (mb, 2);
8956 /* initialize src_ptr to point to the start of object data */
8957 mono_mb_emit_byte (mb, CEE_LDARG_0);
8958 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8959 mono_mb_emit_stloc (mb, 0);
8961 /* initialize dst_ptr */
8962 mono_mb_emit_byte (mb, CEE_LDARG_1);
8963 mono_mb_emit_stloc (mb, 1);
8965 emit_struct_conv (mb, klass, FALSE);
8968 mono_mb_emit_byte (mb, CEE_RET);
8970 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8971 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8974 mono_marshal_lock ();
8975 if (!klass->marshal_info->str_to_ptr)
8976 klass->marshal_info->str_to_ptr = res;
8978 res = klass->marshal_info->str_to_ptr;
8979 mono_marshal_unlock ();
8984 * mono_marshal_get_ptr_to_struct:
8987 * generates IL code for PtrToStructure (IntPtr src, object structure)
8988 * The wrapper info for the wrapper is a WrapperInfo structure.
8991 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8993 MonoMethodBuilder *mb;
8994 static MonoMethodSignature *ptostr = NULL;
8998 g_assert (klass != NULL);
9000 mono_marshal_load_type_info (klass);
9002 if (klass->marshal_info->ptr_to_str)
9003 return klass->marshal_info->ptr_to_str;
9006 MonoMethodSignature *sig;
9008 /* Create the signature corresponding to
9009 static void PtrToStructure (IntPtr ptr, object structure);
9010 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9011 sig = mono_create_icall_signature ("void ptr object");
9012 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9014 mono_memory_barrier ();
9018 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9021 if (klass->blittable) {
9022 mono_mb_emit_byte (mb, CEE_LDARG_1);
9023 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9024 mono_mb_emit_byte (mb, CEE_LDARG_0);
9025 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9026 mono_mb_emit_byte (mb, CEE_PREFIX1);
9027 mono_mb_emit_byte (mb, CEE_CPBLK);
9030 /* allocate local 0 (pointer) src_ptr */
9031 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9032 /* allocate local 1 (pointer) dst_ptr */
9033 mono_mb_add_local (mb, &klass->this_arg);
9035 /* initialize src_ptr to point to the start of object data */
9036 mono_mb_emit_byte (mb, CEE_LDARG_0);
9037 mono_mb_emit_stloc (mb, 0);
9039 /* initialize dst_ptr */
9040 mono_mb_emit_byte (mb, CEE_LDARG_1);
9041 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9042 mono_mb_emit_stloc (mb, 1);
9044 emit_struct_conv (mb, klass, TRUE);
9047 mono_mb_emit_byte (mb, CEE_RET);
9049 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9050 res = mono_mb_create (mb, ptostr, 0, info);
9053 mono_marshal_lock ();
9054 if (!klass->marshal_info->ptr_to_str)
9055 klass->marshal_info->ptr_to_str = res;
9057 res = klass->marshal_info->ptr_to_str;
9058 mono_marshal_unlock ();
9063 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9064 * This is used to avoid infinite recursion since it is hard to determine where to
9065 * replace a method with its synchronized wrapper, and where not.
9066 * The runtime should execute METHOD instead of the wrapper.
9067 * The wrapper info for the wrapper is a WrapperInfo structure.
9070 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9072 MonoMethodBuilder *mb;
9074 MonoMethodSignature *sig;
9076 MonoGenericContext *ctx = NULL;
9077 MonoGenericContainer *container = NULL;
9079 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9080 ctx = &((MonoMethodInflated*)method)->context;
9081 method = ((MonoMethodInflated*)method)->declaring;
9082 container = mono_method_get_generic_container (method);
9084 container = method->klass->generic_container;
9085 g_assert (container);
9088 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9090 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9091 mono_mb_emit_byte (mb, CEE_RET);
9093 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9095 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9096 info->d.synchronized_inner.method = method;
9097 res = mono_mb_create (mb, sig, 0, info);
9101 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9102 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9108 * generates IL code for the synchronized wrapper: the generated method
9109 * calls METHOD while locking 'this' or the parent type.
9112 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9114 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9115 MonoMethodSignature *sig;
9116 MonoExceptionClause *clause;
9117 MonoMethodBuilder *mb;
9121 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9122 MonoGenericContext *ctx = NULL;
9123 MonoMethod *orig_method = NULL;
9124 MonoGenericContainer *container = NULL;
9128 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9131 /* FIXME: Support generic methods too */
9132 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9133 orig_method = method;
9134 ctx = &((MonoMethodInflated*)method)->context;
9135 method = ((MonoMethodInflated*)method)->declaring;
9136 container = mono_method_get_generic_container (method);
9138 container = method->klass->generic_container;
9139 g_assert (container);
9146 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9147 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9151 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9152 if ((res = mono_marshal_find_in_cache (cache, method)))
9156 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9159 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9161 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9162 info->d.synchronized.method = method;
9165 mb->skip_visibility = 1;
9167 if (!MONO_TYPE_IS_VOID (sig->ret))
9168 ret_local = mono_mb_add_local (mb, sig->ret);
9171 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9172 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9174 /* This will throw the type load exception when the wrapper is compiled */
9175 mono_mb_emit_byte (mb, CEE_LDNULL);
9176 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9177 mono_mb_emit_byte (mb, CEE_POP);
9179 if (!MONO_TYPE_IS_VOID (sig->ret))
9180 mono_mb_emit_ldloc (mb, ret_local);
9181 mono_mb_emit_byte (mb, CEE_RET);
9184 res = mono_mb_create_and_cache_full (cache, method,
9185 mb, sig, sig->param_count + 16, info, NULL);
9193 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9194 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9196 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9197 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9200 mono_marshal_lock ();
9202 if (!enter_method) {
9203 MonoMethodDesc *desc;
9205 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9206 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9207 g_assert (enter_method);
9208 mono_method_desc_free (desc);
9210 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9211 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9212 g_assert (exit_method);
9213 mono_method_desc_free (desc);
9215 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9216 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9217 g_assert (gettypefromhandle_method);
9218 mono_method_desc_free (desc);
9221 mono_marshal_unlock ();
9224 /* Push this or the type object */
9225 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9226 /* We have special handling for this in the JIT */
9227 int index = mono_mb_add_data (mb, method->klass);
9228 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9229 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9230 mono_mb_emit_i4 (mb, index);
9232 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9235 mono_mb_emit_ldarg (mb, 0);
9236 mono_mb_emit_stloc (mb, this_local);
9238 /* Call Monitor::Enter() */
9239 mono_mb_emit_ldloc (mb, this_local);
9240 mono_mb_emit_ldloc_addr (mb, taken_local);
9241 mono_mb_emit_managed_call (mb, enter_method, NULL);
9243 clause->try_offset = mono_mb_get_label (mb);
9245 /* Call the method */
9247 mono_mb_emit_ldarg (mb, 0);
9248 for (i = 0; i < sig->param_count; i++)
9249 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9253 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9254 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9256 mono_mb_emit_managed_call (mb, method, NULL);
9259 if (!MONO_TYPE_IS_VOID (sig->ret))
9260 mono_mb_emit_stloc (mb, ret_local);
9262 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9264 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9265 clause->handler_offset = mono_mb_get_label (mb);
9267 /* Call Monitor::Exit() if needed */
9268 mono_mb_emit_ldloc (mb, taken_local);
9269 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9270 mono_mb_emit_ldloc (mb, this_local);
9271 mono_mb_emit_managed_call (mb, exit_method, NULL);
9272 mono_mb_patch_branch (mb, pos2);
9273 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9275 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9277 mono_mb_patch_branch (mb, pos);
9278 if (!MONO_TYPE_IS_VOID (sig->ret))
9279 mono_mb_emit_ldloc (mb, ret_local);
9280 mono_mb_emit_byte (mb, CEE_RET);
9282 mono_mb_set_clauses (mb, 1, clause);
9287 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9288 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9290 res = mono_mb_create_and_cache_full (cache, method,
9291 mb, sig, sig->param_count + 16, info, NULL);
9300 * the returned method calls 'method' unboxing the this argument
9303 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9305 MonoMethodSignature *sig = mono_method_signature (method);
9307 MonoMethodBuilder *mb;
9312 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9314 if ((res = mono_marshal_find_in_cache (cache, method)))
9317 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9319 g_assert (sig->hasthis);
9322 mono_mb_emit_ldarg (mb, 0);
9323 mono_mb_emit_icon (mb, sizeof (MonoObject));
9324 mono_mb_emit_byte (mb, CEE_ADD);
9325 for (i = 0; i < sig->param_count; ++i)
9326 mono_mb_emit_ldarg (mb, i + 1);
9327 mono_mb_emit_managed_call (mb, method, NULL);
9328 mono_mb_emit_byte (mb, CEE_RET);
9331 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9332 info->d.unbox.method = method;
9334 res = mono_mb_create_and_cache_full (cache, method,
9335 mb, sig, sig->param_count + 16, info, NULL);
9338 /* mono_method_print_code (res); */
9344 STELEMREF_OBJECT, /*no check at all*/
9345 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9346 STELEMREF_CLASS, /*only the klass->parents check*/
9347 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9348 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9349 STELEMREF_KIND_COUNT
9352 static const char *strelemref_wrapper_name[] = {
9353 "object", "sealed_class", "class", "interface", "complex"
9357 is_monomorphic_array (MonoClass *klass)
9359 MonoClass *element_class;
9360 if (klass->rank != 1)
9363 element_class = klass->element_class;
9364 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9368 get_virtual_stelemref_kind (MonoClass *element_class)
9370 if (element_class == mono_defaults.object_class)
9371 return STELEMREF_OBJECT;
9372 if (is_monomorphic_array (element_class))
9373 return STELEMREF_SEALED_CLASS;
9374 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9375 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9376 #ifdef COMPRESSED_INTERFACE_BITMAP
9377 return STELEMREF_COMPLEX;
9379 return STELEMREF_INTERFACE;
9381 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9382 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9383 return STELEMREF_COMPLEX;
9384 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9385 return STELEMREF_SEALED_CLASS;
9386 return STELEMREF_CLASS;
9392 load_array_element_address (MonoMethodBuilder *mb)
9394 mono_mb_emit_ldarg (mb, 0);
9395 mono_mb_emit_ldarg (mb, 1);
9396 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9400 load_array_class (MonoMethodBuilder *mb, int aklass)
9402 mono_mb_emit_ldarg (mb, 0);
9403 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9404 mono_mb_emit_byte (mb, CEE_LDIND_I);
9405 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9406 mono_mb_emit_byte (mb, CEE_LDIND_I);
9407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9408 mono_mb_emit_byte (mb, CEE_LDIND_I);
9409 mono_mb_emit_stloc (mb, aklass);
9413 load_value_class (MonoMethodBuilder *mb, int vklass)
9415 mono_mb_emit_ldarg (mb, 2);
9416 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9417 mono_mb_emit_byte (mb, CEE_LDIND_I);
9418 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9419 mono_mb_emit_byte (mb, CEE_LDIND_I);
9420 mono_mb_emit_stloc (mb, vklass);
9426 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9428 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9429 printf ("slow vstore of %s\n", name);
9435 * The wrapper info for the wrapper is a WrapperInfo structure.
9438 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9439 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9440 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9441 * - Add a case for arrays of arrays.
9444 get_virtual_stelemref_wrapper (int kind)
9446 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9447 static MonoMethodSignature *signature;
9448 MonoMethodBuilder *mb;
9451 const char *param_names [16];
9453 int aklass, vklass, vtable, uiid;
9454 int array_slot_addr;
9457 if (cached_methods [kind])
9458 return cached_methods [kind];
9460 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9461 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9465 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9467 /* void this::stelemref (size_t idx, void* value) */
9468 sig->ret = &mono_defaults.void_class->byval_arg;
9469 sig->hasthis = TRUE;
9470 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9471 sig->params [1] = &mono_defaults.object_class->byval_arg;
9476 param_names [0] = "index";
9477 param_names [1] = "value";
9478 mono_mb_set_param_names (mb, param_names);
9480 /*For now simply call plain old stelemref*/
9482 case STELEMREF_OBJECT:
9483 /* ldelema (implicit bound check) */
9484 load_array_element_address (mb);
9486 mono_mb_emit_ldarg (mb, 2);
9487 mono_mb_emit_byte (mb, CEE_STIND_REF);
9488 mono_mb_emit_byte (mb, CEE_RET);
9491 case STELEMREF_COMPLEX:
9493 <ldelema (bound check)>
9496 if (!mono_object_isinst (value, aklass))
9500 *array_slot_addr = value;
9503 throw new ArrayTypeMismatchException ();
9506 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9507 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9511 /*Use this to debug/record stores that are going thru the slow path*/
9512 MonoMethodSignature *csig;
9513 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9514 csig->ret = &mono_defaults.void_class->byval_arg;
9515 csig->params [0] = &mono_defaults.object_class->byval_arg;
9516 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9517 csig->params [2] = &mono_defaults.object_class->byval_arg;
9518 mono_mb_emit_ldarg (mb, 0);
9519 mono_mb_emit_ldarg (mb, 1);
9520 mono_mb_emit_ldarg (mb, 2);
9521 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9525 /* ldelema (implicit bound check) */
9526 load_array_element_address (mb);
9527 mono_mb_emit_stloc (mb, array_slot_addr);
9529 /* if (!value) goto do_store */
9530 mono_mb_emit_ldarg (mb, 2);
9531 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9533 /* aklass = array->vtable->klass->element_class */
9534 load_array_class (mb, aklass);
9536 /*if (mono_object_isinst (value, aklass)) */
9537 mono_mb_emit_ldarg (mb, 2);
9538 mono_mb_emit_ldloc (mb, aklass);
9539 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9540 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9543 mono_mb_patch_branch (mb, b1);
9544 mono_mb_emit_ldloc (mb, array_slot_addr);
9545 mono_mb_emit_ldarg (mb, 2);
9546 mono_mb_emit_byte (mb, CEE_STIND_REF);
9547 mono_mb_emit_byte (mb, CEE_RET);
9550 mono_mb_patch_branch (mb, b2);
9552 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9555 case STELEMREF_SEALED_CLASS:
9557 <ldelema (bound check)>
9561 aklass = array->vtable->klass->element_class;
9562 vklass = value->vtable->klass;
9564 if (vklass != aklass)
9568 *array_slot_addr = value;
9571 throw new ArrayTypeMismatchException ();
9573 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9574 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9575 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9578 /* ldelema (implicit bound check) */
9579 load_array_element_address (mb);
9580 mono_mb_emit_stloc (mb, array_slot_addr);
9582 /* if (!value) goto do_store */
9583 mono_mb_emit_ldarg (mb, 2);
9584 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9586 /* aklass = array->vtable->klass->element_class */
9587 load_array_class (mb, aklass);
9589 /* vklass = value->vtable->klass */
9590 load_value_class (mb, vklass);
9592 /*if (vklass != aklass) goto do_exception; */
9593 mono_mb_emit_ldloc (mb, aklass);
9594 mono_mb_emit_ldloc (mb, vklass);
9595 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9598 mono_mb_patch_branch (mb, b1);
9599 mono_mb_emit_ldloc (mb, array_slot_addr);
9600 mono_mb_emit_ldarg (mb, 2);
9601 mono_mb_emit_byte (mb, CEE_STIND_REF);
9602 mono_mb_emit_byte (mb, CEE_RET);
9605 mono_mb_patch_branch (mb, b2);
9606 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9609 case STELEMREF_CLASS:
9612 <ldelema (bound check)>
9616 aklass = array->vtable->klass->element_class;
9617 vklass = value->vtable->klass;
9619 if (vklass->idepth < aklass->idepth)
9622 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9626 *array_slot_addr = value;
9630 throw new ArrayTypeMismatchException ();
9632 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9633 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9634 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9636 /* ldelema (implicit bound check) */
9637 load_array_element_address (mb);
9638 mono_mb_emit_stloc (mb, array_slot_addr);
9640 /* if (!value) goto do_store */
9641 mono_mb_emit_ldarg (mb, 2);
9642 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9644 /* aklass = array->vtable->klass->element_class */
9645 load_array_class (mb, aklass);
9647 /* vklass = value->vtable->klass */
9648 load_value_class (mb, vklass);
9650 /*if (mono_object_isinst (value, aklass)) */
9651 mono_mb_emit_ldarg (mb, 2);
9652 mono_mb_emit_ldloc (mb, aklass);
9653 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9654 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9656 /* if (vklass->idepth < aklass->idepth) goto failue */
9657 mono_mb_emit_ldloc (mb, vklass);
9658 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9659 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9661 mono_mb_emit_ldloc (mb, aklass);
9662 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9663 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9665 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9667 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9668 mono_mb_emit_ldloc (mb, vklass);
9669 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9670 mono_mb_emit_byte (mb, CEE_LDIND_I);
9672 mono_mb_emit_ldloc (mb, aklass);
9673 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9674 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9675 mono_mb_emit_icon (mb, 1);
9676 mono_mb_emit_byte (mb, CEE_SUB);
9677 mono_mb_emit_icon (mb, sizeof (void*));
9678 mono_mb_emit_byte (mb, CEE_MUL);
9679 mono_mb_emit_byte (mb, CEE_ADD);
9680 mono_mb_emit_byte (mb, CEE_LDIND_I);
9682 mono_mb_emit_ldloc (mb, aklass);
9683 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9686 mono_mb_patch_branch (mb, b1);
9687 mono_mb_emit_ldloc (mb, array_slot_addr);
9688 mono_mb_emit_ldarg (mb, 2);
9689 mono_mb_emit_byte (mb, CEE_STIND_REF);
9690 mono_mb_emit_byte (mb, CEE_RET);
9693 mono_mb_patch_branch (mb, b2);
9694 mono_mb_patch_branch (mb, b3);
9696 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9699 case STELEMREF_INTERFACE:
9706 klass = array->obj.vtable->klass->element_class;
9708 uiid = klass->interface_id;
9709 if (uiid > vt->max_interface_id)
9711 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9714 mono_array_setref (array, index, value);
9717 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9719 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9720 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9721 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9722 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9724 /* ldelema (implicit bound check) */
9725 load_array_element_address (mb);
9726 mono_mb_emit_stloc (mb, array_slot_addr);
9728 /* if (!value) goto do_store */
9729 mono_mb_emit_ldarg (mb, 2);
9730 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9732 /* klass = array->vtable->klass->element_class */
9733 load_array_class (mb, aklass);
9735 /* vt = value->vtable */
9736 mono_mb_emit_ldarg (mb, 2);
9737 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9738 mono_mb_emit_byte (mb, CEE_LDIND_I);
9739 mono_mb_emit_stloc (mb, vtable);
9741 /* uiid = klass->interface_id; */
9742 mono_mb_emit_ldloc (mb, aklass);
9743 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9744 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9745 mono_mb_emit_stloc (mb, uiid);
9747 /*if (uiid > vt->max_interface_id)*/
9748 mono_mb_emit_ldloc (mb, uiid);
9749 mono_mb_emit_ldloc (mb, vtable);
9750 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9751 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9752 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9754 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9756 /*vt->interface_bitmap*/
9757 mono_mb_emit_ldloc (mb, vtable);
9758 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9759 mono_mb_emit_byte (mb, CEE_LDIND_I);
9762 mono_mb_emit_ldloc (mb, uiid);
9763 mono_mb_emit_icon (mb, 3);
9764 mono_mb_emit_byte (mb, CEE_SHR_UN);
9766 /*vt->interface_bitmap [(uiid) >> 3]*/
9767 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9768 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9770 /*(1 << ((uiid)&7)))*/
9771 mono_mb_emit_icon (mb, 1);
9772 mono_mb_emit_ldloc (mb, uiid);
9773 mono_mb_emit_icon (mb, 7);
9774 mono_mb_emit_byte (mb, CEE_AND);
9775 mono_mb_emit_byte (mb, CEE_SHL);
9777 /*bitwise and the whole thing*/
9778 mono_mb_emit_byte (mb, CEE_AND);
9779 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9782 mono_mb_patch_branch (mb, b1);
9783 mono_mb_emit_ldloc (mb, array_slot_addr);
9784 mono_mb_emit_ldarg (mb, 2);
9785 mono_mb_emit_byte (mb, CEE_STIND_REF);
9786 mono_mb_emit_byte (mb, CEE_RET);
9789 mono_mb_patch_branch (mb, b2);
9790 mono_mb_patch_branch (mb, b3);
9791 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9795 mono_mb_emit_ldarg (mb, 0);
9796 mono_mb_emit_ldarg (mb, 1);
9797 mono_mb_emit_ldarg (mb, 2);
9798 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9799 mono_mb_emit_byte (mb, CEE_RET);
9802 #endif /* DISABLE_JIT */
9803 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9804 info->d.virtual_stelemref.kind = kind;
9805 res = mono_mb_create (mb, signature, 4, info);
9806 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9808 mono_marshal_lock ();
9809 if (!cached_methods [kind]) {
9810 cached_methods [kind] = res;
9811 mono_marshal_unlock ();
9813 mono_marshal_unlock ();
9814 mono_free_method (res);
9818 return cached_methods [kind];
9822 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9826 g_assert (array_class->rank == 1);
9827 kind = get_virtual_stelemref_kind (array_class->element_class);
9829 return get_virtual_stelemref_wrapper (kind);
9833 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9838 *nwrappers = STELEMREF_KIND_COUNT;
9839 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9840 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9841 res [i] = get_virtual_stelemref_wrapper (i);
9846 * The wrapper info for the wrapper is a WrapperInfo structure.
9849 mono_marshal_get_stelemref (void)
9851 static MonoMethod* ret = NULL;
9852 MonoMethodSignature *sig;
9853 MonoMethodBuilder *mb;
9856 guint32 b1, b2, b3, b4;
9859 int array_slot_addr;
9864 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9867 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9869 /* void stelemref (void* array, int idx, void* value) */
9870 sig->ret = &mono_defaults.void_class->byval_arg;
9871 sig->params [0] = &mono_defaults.object_class->byval_arg;
9872 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9873 sig->params [2] = &mono_defaults.object_class->byval_arg;
9876 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9877 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9878 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9882 <ldelema (bound check)>
9886 aklass = array->vtable->klass->element_class;
9887 vklass = value->vtable->klass;
9889 if (vklass->idepth < aklass->idepth)
9892 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9896 *array_slot_addr = value;
9900 if (mono_object_isinst (value, aklass))
9903 throw new ArrayTypeMismatchException ();
9906 /* ldelema (implicit bound check) */
9907 mono_mb_emit_ldarg (mb, 0);
9908 mono_mb_emit_ldarg (mb, 1);
9909 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9910 mono_mb_emit_stloc (mb, array_slot_addr);
9912 /* if (!value) goto do_store */
9913 mono_mb_emit_ldarg (mb, 2);
9914 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9916 /* aklass = array->vtable->klass->element_class */
9917 mono_mb_emit_ldarg (mb, 0);
9918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9919 mono_mb_emit_byte (mb, CEE_LDIND_I);
9920 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9921 mono_mb_emit_byte (mb, CEE_LDIND_I);
9922 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9923 mono_mb_emit_byte (mb, CEE_LDIND_I);
9924 mono_mb_emit_stloc (mb, aklass);
9926 /* vklass = value->vtable->klass */
9927 mono_mb_emit_ldarg (mb, 2);
9928 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9929 mono_mb_emit_byte (mb, CEE_LDIND_I);
9930 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9931 mono_mb_emit_byte (mb, CEE_LDIND_I);
9932 mono_mb_emit_stloc (mb, vklass);
9934 /* if (vklass->idepth < aklass->idepth) goto failue */
9935 mono_mb_emit_ldloc (mb, vklass);
9936 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9937 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9939 mono_mb_emit_ldloc (mb, aklass);
9940 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9941 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9943 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9945 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9946 mono_mb_emit_ldloc (mb, vklass);
9947 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9948 mono_mb_emit_byte (mb, CEE_LDIND_I);
9950 mono_mb_emit_ldloc (mb, aklass);
9951 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9952 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9953 mono_mb_emit_icon (mb, 1);
9954 mono_mb_emit_byte (mb, CEE_SUB);
9955 mono_mb_emit_icon (mb, sizeof (void*));
9956 mono_mb_emit_byte (mb, CEE_MUL);
9957 mono_mb_emit_byte (mb, CEE_ADD);
9958 mono_mb_emit_byte (mb, CEE_LDIND_I);
9960 mono_mb_emit_ldloc (mb, aklass);
9962 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9964 copy_pos = mono_mb_get_label (mb);
9966 mono_mb_patch_branch (mb, b1);
9967 mono_mb_emit_ldloc (mb, array_slot_addr);
9968 mono_mb_emit_ldarg (mb, 2);
9969 mono_mb_emit_byte (mb, CEE_STIND_REF);
9971 mono_mb_emit_byte (mb, CEE_RET);
9974 mono_mb_patch_branch (mb, b2);
9975 mono_mb_patch_branch (mb, b3);
9977 mono_mb_emit_ldarg (mb, 2);
9978 mono_mb_emit_ldloc (mb, aklass);
9979 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9981 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9982 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9983 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9985 mono_mb_emit_byte (mb, CEE_RET);
9987 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9988 ret = mono_mb_create (mb, sig, 4, info);
9995 * mono_marshal_get_gsharedvt_in_wrapper:
9997 * This wrapper handles calls from normal code to gsharedvt code.
9999 * The wrapper info for the wrapper is a WrapperInfo structure.
10002 mono_marshal_get_gsharedvt_in_wrapper (void)
10004 static MonoMethod* ret = NULL;
10005 MonoMethodSignature *sig;
10006 MonoMethodBuilder *mb;
10012 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10014 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10015 sig->ret = &mono_defaults.void_class->byval_arg;
10017 #ifndef DISABLE_JIT
10019 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10021 mono_mb_emit_byte (mb, CEE_RET);
10023 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10024 ret = mono_mb_create (mb, sig, 4, info);
10031 * mono_marshal_get_gsharedvt_out_wrapper:
10033 * This wrapper handles calls from gsharedvt code to normal code.
10035 * The wrapper info for the wrapper is a WrapperInfo structure.
10038 mono_marshal_get_gsharedvt_out_wrapper (void)
10040 static MonoMethod* ret = NULL;
10041 MonoMethodSignature *sig;
10042 MonoMethodBuilder *mb;
10048 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10050 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10051 sig->ret = &mono_defaults.void_class->byval_arg;
10053 #ifndef DISABLE_JIT
10055 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10057 mono_mb_emit_byte (mb, CEE_RET);
10059 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10060 ret = mono_mb_create (mb, sig, 4, info);
10069 MonoMethod *method;
10072 /* LOCKING: vars accessed under the marshal lock */
10073 static ArrayElemAddr *elem_addr_cache = NULL;
10074 static int elem_addr_cache_size = 0;
10075 static int elem_addr_cache_next = 0;
10078 * mono_marshal_get_array_address:
10079 * @rank: rank of the array type
10080 * @elem_size: size in bytes of an element of an array.
10082 * Returns a MonoMethod that implements the code to get the address
10083 * of an element in a multi-dimenasional array of @rank dimensions.
10084 * The returned method takes an array as the first argument and then
10085 * @rank indexes for the @rank dimensions.
10086 * If ELEM_SIZE is 0, read the array size from the array object.
10089 mono_marshal_get_array_address (int rank, int elem_size)
10092 MonoMethodBuilder *mb;
10093 MonoMethodSignature *sig;
10096 int i, bounds, ind, realidx;
10097 int branch_pos, *branch_positions;
10101 mono_marshal_lock ();
10102 for (i = 0; i < elem_addr_cache_next; ++i) {
10103 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10104 ret = elem_addr_cache [i].method;
10108 mono_marshal_unlock ();
10112 branch_positions = g_new0 (int, rank);
10114 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10116 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10117 sig->ret = &mono_defaults.int_class->byval_arg;
10118 sig->params [0] = &mono_defaults.object_class->byval_arg;
10119 for (i = 0; i < rank; ++i) {
10120 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10123 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10124 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10127 #ifndef DISABLE_JIT
10128 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10129 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10130 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10132 /* bounds = array->bounds; */
10133 mono_mb_emit_ldarg (mb, 0);
10134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10135 mono_mb_emit_byte (mb, CEE_LDIND_I);
10136 mono_mb_emit_stloc (mb, bounds);
10138 /* ind is the overall element index, realidx is the partial index in a single dimension */
10139 /* ind = idx0 - bounds [0].lower_bound */
10140 mono_mb_emit_ldarg (mb, 1);
10141 mono_mb_emit_ldloc (mb, bounds);
10142 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10143 mono_mb_emit_byte (mb, CEE_ADD);
10144 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10145 mono_mb_emit_byte (mb, CEE_SUB);
10146 mono_mb_emit_stloc (mb, ind);
10147 /* if (ind >= bounds [0].length) goto exeception; */
10148 mono_mb_emit_ldloc (mb, ind);
10149 mono_mb_emit_ldloc (mb, bounds);
10150 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10151 mono_mb_emit_byte (mb, CEE_ADD);
10152 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10153 /* note that we use unsigned comparison */
10154 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10156 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10157 * We could also decide to ignore the passed elem_size and get it
10158 * from the array object, to reduce the number of methods we generate:
10159 * the additional cost is 3 memory loads and a non-immediate mul.
10161 for (i = 1; i < rank; ++i) {
10162 /* realidx = idxi - bounds [i].lower_bound */
10163 mono_mb_emit_ldarg (mb, 1 + i);
10164 mono_mb_emit_ldloc (mb, bounds);
10165 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10166 mono_mb_emit_byte (mb, CEE_ADD);
10167 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10168 mono_mb_emit_byte (mb, CEE_SUB);
10169 mono_mb_emit_stloc (mb, realidx);
10170 /* if (realidx >= bounds [i].length) goto exeception; */
10171 mono_mb_emit_ldloc (mb, realidx);
10172 mono_mb_emit_ldloc (mb, bounds);
10173 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10174 mono_mb_emit_byte (mb, CEE_ADD);
10175 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10176 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10177 /* ind = ind * bounds [i].length + realidx */
10178 mono_mb_emit_ldloc (mb, ind);
10179 mono_mb_emit_ldloc (mb, bounds);
10180 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10181 mono_mb_emit_byte (mb, CEE_ADD);
10182 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10183 mono_mb_emit_byte (mb, CEE_MUL);
10184 mono_mb_emit_ldloc (mb, realidx);
10185 mono_mb_emit_byte (mb, CEE_ADD);
10186 mono_mb_emit_stloc (mb, ind);
10189 /* return array->vector + ind * element_size */
10190 mono_mb_emit_ldarg (mb, 0);
10191 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10192 mono_mb_emit_ldloc (mb, ind);
10194 mono_mb_emit_icon (mb, elem_size);
10196 /* Load arr->vtable->klass->sizes.element_class */
10197 mono_mb_emit_ldarg (mb, 0);
10198 mono_mb_emit_byte (mb, CEE_CONV_I);
10199 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10200 mono_mb_emit_byte (mb, CEE_ADD);
10201 mono_mb_emit_byte (mb, CEE_LDIND_I);
10202 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10203 mono_mb_emit_byte (mb, CEE_ADD);
10204 mono_mb_emit_byte (mb, CEE_LDIND_I);
10205 /* sizes is an union, so this reads sizes.element_size */
10206 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10207 mono_mb_emit_byte (mb, CEE_ADD);
10208 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10210 mono_mb_emit_byte (mb, CEE_MUL);
10211 mono_mb_emit_byte (mb, CEE_ADD);
10212 mono_mb_emit_byte (mb, CEE_RET);
10214 /* patch the branches to get here and throw */
10215 for (i = 1; i < rank; ++i) {
10216 mono_mb_patch_branch (mb, branch_positions [i]);
10218 mono_mb_patch_branch (mb, branch_pos);
10219 /* throw exception */
10220 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10222 g_free (branch_positions);
10223 #endif /* DISABLE_JIT */
10225 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10226 info->d.element_addr.rank = rank;
10227 info->d.element_addr.elem_size = elem_size;
10228 ret = mono_mb_create (mb, sig, 4, info);
10231 /* cache the result */
10233 mono_marshal_lock ();
10234 for (i = 0; i < elem_addr_cache_next; ++i) {
10235 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10236 /* FIXME: free ret */
10237 ret = elem_addr_cache [i].method;
10243 if (elem_addr_cache_next >= elem_addr_cache_size) {
10244 int new_size = elem_addr_cache_size + 4;
10245 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10246 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10247 g_free (elem_addr_cache);
10248 elem_addr_cache = new_array;
10249 elem_addr_cache_size = new_size;
10251 elem_addr_cache [elem_addr_cache_next].rank = rank;
10252 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10253 elem_addr_cache [elem_addr_cache_next].method = ret;
10254 elem_addr_cache_next ++;
10256 mono_marshal_unlock ();
10261 * mono_marshal_get_array_accessor_wrapper:
10263 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10266 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10268 MonoMethodSignature *sig;
10269 MonoMethodBuilder *mb;
10273 MonoGenericContext *ctx = NULL;
10274 MonoMethod *orig_method = NULL;
10275 MonoGenericContainer *container = NULL;
10279 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10280 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10281 * FIXME: Use generic methods.
10288 g_assert_not_reached ();
10290 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10291 if ((res = mono_marshal_find_in_cache (cache, method)))
10295 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10298 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10300 #ifndef DISABLE_JIT
10301 /* Call the method */
10303 mono_mb_emit_ldarg (mb, 0);
10304 for (i = 0; i < sig->param_count; i++)
10305 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10309 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10310 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10312 mono_mb_emit_managed_call (mb, method, NULL);
10314 mono_mb_emit_byte (mb, CEE_RET);
10317 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10318 info->d.array_accessor.method = method;
10322 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10323 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10325 res = mono_mb_create_and_cache_full (cache, method,
10326 mb, sig, sig->param_count + 16,
10335 mono_marshal_alloc (gulong size, MonoError *error)
10339 mono_error_init (error);
10342 res = CoTaskMemAlloc (size);
10344 res = g_try_malloc ((gulong)size);
10346 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10351 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10353 ves_icall_marshal_alloc (gulong size)
10356 void *ret = mono_marshal_alloc (size, &error);
10357 if (!mono_error_ok (&error)) {
10358 mono_error_set_pending_exception (&error);
10366 mono_marshal_free (gpointer ptr)
10369 CoTaskMemFree (ptr);
10376 mono_marshal_free_array (gpointer *ptr, int size)
10383 for (i = 0; i < size; i++)
10389 mono_marshal_string_to_utf16 (MonoString *s)
10391 return s ? mono_string_chars (s) : NULL;
10394 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10396 mono_marshal_string_to_utf16_copy (MonoString *s)
10402 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10403 if (!mono_error_ok (&error)) {
10404 mono_error_set_pending_exception (&error);
10407 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10408 res [mono_string_length (s)] = 0;
10414 * mono_marshal_set_last_error:
10416 * This function is invoked to set the last error value from a P/Invoke call
10417 * which has SetLastError set.
10420 mono_marshal_set_last_error (void)
10423 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10425 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10430 mono_marshal_set_last_error_windows (int error)
10433 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10438 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10439 gpointer dest, gint32 length)
10444 MONO_CHECK_ARG_NULL (src,);
10445 MONO_CHECK_ARG_NULL (dest,);
10447 if (src->obj.vtable->klass->rank != 1) {
10448 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10451 if (start_index < 0) {
10452 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10456 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10459 if (start_index + length > mono_array_length (src)) {
10460 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10464 element_size = mono_array_element_size (src->obj.vtable->klass);
10466 /* no references should be involved */
10467 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10469 memcpy (dest, source_addr, length * element_size);
10473 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10474 MonoArray *dest, gint32 length)
10479 MONO_CHECK_ARG_NULL (src,);
10480 MONO_CHECK_ARG_NULL (dest,);
10482 if (dest->obj.vtable->klass->rank != 1) {
10483 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10486 if (start_index < 0) {
10487 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10491 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10494 if (start_index + length > mono_array_length (dest)) {
10495 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10498 element_size = mono_array_element_size (dest->obj.vtable->klass);
10500 /* no references should be involved */
10501 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10503 memcpy (dest_addr, src, length * element_size);
10507 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10512 return mono_string_new (mono_domain_get (), ptr);
10516 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10519 MonoString *result = NULL;
10520 mono_error_init (&error);
10522 mono_error_set_argument_null (&error, "ptr", "");
10524 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10525 mono_error_set_pending_exception (&error);
10530 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10533 MonoString *res = NULL;
10534 MonoDomain *domain = mono_domain_get ();
10544 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10545 if (!mono_error_ok (&error)) {
10546 mono_error_set_pending_exception (&error);
10553 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10556 MonoString *res = NULL;
10557 MonoDomain *domain = mono_domain_get ();
10559 mono_error_init (&error);
10563 mono_error_set_argument_null (&error, "ptr", "");
10565 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10568 if (!mono_error_ok (&error))
10569 mono_error_set_pending_exception (&error);
10574 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10576 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10580 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10586 MONO_CHECK_ARG_NULL (rtype, 0);
10588 type = rtype->type;
10589 klass = mono_class_from_mono_type (type);
10590 if (!mono_class_init (klass)) {
10591 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10595 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10597 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10598 return sizeof (gpointer);
10599 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10601 MonoException *exc;
10603 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10604 exc = mono_get_exception_argument ("t", msg);
10606 mono_set_pending_exception (exc);
10610 return mono_class_native_size (klass, NULL);
10614 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10617 MonoMethod *method;
10620 MONO_CHECK_ARG_NULL (obj,);
10621 MONO_CHECK_ARG_NULL (dst,);
10623 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10627 pa [2] = &delete_old;
10629 mono_runtime_invoke_checked (method, NULL, pa, &error);
10630 if (!mono_error_ok (&error))
10631 mono_error_set_pending_exception (&error);
10635 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10637 MonoMethod *method;
10640 mono_error_init (error);
10642 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10647 mono_runtime_invoke_checked (method, NULL, pa, error);
10651 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10656 MONO_CHECK_ARG_NULL (src,);
10657 MONO_CHECK_ARG_NULL (dst,);
10659 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10661 if (t->type == MONO_TYPE_VALUETYPE) {
10662 MonoException *exc;
10665 tmp = g_strdup_printf ("Destination is a boxed value type.");
10666 exc = mono_get_exception_argument ("dst", tmp);
10669 mono_set_pending_exception (exc);
10673 ptr_to_structure (src, dst, &error);
10674 if (!mono_error_ok (&error))
10675 mono_error_set_pending_exception (&error);
10679 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10683 MonoDomain *domain = mono_domain_get ();
10688 MONO_CHECK_ARG_NULL (type, NULL);
10690 klass = mono_class_from_mono_type (type->type);
10691 if (!mono_class_init (klass)) {
10692 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10696 res = mono_object_new_checked (domain, klass, &error);
10697 if (!mono_error_ok (&error)) {
10698 mono_error_set_pending_exception (&error);
10702 ptr_to_structure (src, res, &error);
10703 if (!mono_error_ok (&error)) {
10704 mono_error_set_pending_exception (&error);
10712 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10714 MonoMarshalType *info;
10717 int match_index = -1;
10719 MONO_CHECK_ARG_NULL (type, 0);
10720 MONO_CHECK_ARG_NULL (field_name, 0);
10722 fname = mono_string_to_utf8 (field_name);
10723 klass = mono_class_from_mono_type (type->type);
10724 if (!mono_class_init (klass)) {
10725 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10729 while (klass && match_index == -1) {
10730 MonoClassField* field;
10732 gpointer iter = NULL;
10733 while ((field = mono_class_get_fields (klass, &iter))) {
10734 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10736 if (!strcmp (fname, mono_field_get_name (field))) {
10743 if (match_index == -1)
10744 klass = klass->parent;
10749 if(match_index == -1) {
10750 MonoException* exc;
10753 /* Get back original class instance */
10754 klass = mono_class_from_mono_type (type->type);
10756 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10757 exc = mono_get_exception_argument ("fieldName", tmp);
10760 mono_set_pending_exception ((MonoException*)exc);
10764 info = mono_marshal_load_type_info (klass);
10765 return info->fields [match_index].offset;
10769 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10774 tres = mono_string_to_utf8 (string);
10778 len = strlen (tres) + 1;
10779 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10780 memcpy (ret, tres, len);
10785 return mono_string_to_utf8 (string);
10790 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10792 if (string == NULL)
10795 #ifdef TARGET_WIN32
10796 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10797 ((mono_string_length (string) + 1) * 2);
10799 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10801 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10802 res [mono_string_length (string)] = 0;
10808 mono_struct_delete_old (MonoClass *klass, char *ptr)
10810 MonoMarshalType *info;
10813 info = mono_marshal_load_type_info (klass);
10815 for (i = 0; i < info->num_fields; i++) {
10816 MonoMarshalConv conv;
10817 MonoType *ftype = info->fields [i].field->type;
10820 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10823 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10824 klass->unicode, &conv);
10826 cpos = ptr + info->fields [i].offset;
10829 case MONO_MARSHAL_CONV_NONE:
10830 if (MONO_TYPE_ISSTRUCT (ftype)) {
10831 mono_struct_delete_old (ftype->data.klass, cpos);
10835 case MONO_MARSHAL_CONV_STR_LPWSTR:
10836 /* We assume this field points inside a MonoString */
10838 case MONO_MARSHAL_CONV_STR_LPTSTR:
10839 #ifdef TARGET_WIN32
10840 /* We assume this field points inside a MonoString
10844 case MONO_MARSHAL_CONV_STR_LPSTR:
10845 case MONO_MARSHAL_CONV_STR_BSTR:
10846 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10847 case MONO_MARSHAL_CONV_STR_TBSTR:
10848 mono_marshal_free (*(gpointer *)cpos);
10858 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10862 MONO_CHECK_ARG_NULL (src,);
10863 MONO_CHECK_ARG_NULL (type,);
10865 klass = mono_class_from_mono_type (type->type);
10866 if (!mono_class_init (klass)) {
10867 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10871 mono_struct_delete_old (klass, (char *)src);
10875 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10878 size_t s = (size_t)size;
10881 /* This returns a valid pointer for size 0 on MS.NET */
10885 res = GlobalAlloc (GMEM_FIXED, s);
10887 res = g_try_malloc (s);
10890 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10898 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10901 size_t s = (size_t)size;
10904 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10909 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10911 res = g_try_realloc (ptr, s);
10914 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10922 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10932 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10937 res = CoTaskMemAlloc (size);
10939 if ((gulong)size == 0)
10940 /* This returns a valid pointer for size 0 on MS.NET */
10943 res = g_try_malloc ((gulong)size);
10946 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10953 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10956 CoTaskMemFree (ptr);
10963 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10968 res = CoTaskMemRealloc (ptr, size);
10970 res = g_try_realloc (ptr, (gulong)size);
10973 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10980 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10982 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10986 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10988 MonoClass *klass = mono_type_get_class (type->type);
10989 if (!mono_class_init (klass)) {
10990 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10994 return mono_ftnptr_to_delegate (klass, ftn);
10998 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11000 return mono_delegate_to_ftnptr (delegate);
11004 * mono_marshal_is_loading_type_info:
11006 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11010 mono_marshal_is_loading_type_info (MonoClass *klass)
11012 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11014 return g_slist_find (loads_list, klass) != NULL;
11018 * mono_marshal_load_type_info:
11020 * Initialize klass->marshal_info using information from metadata. This function can
11021 * recursively call itself, and the caller is responsible to avoid that by calling
11022 * mono_marshal_is_loading_type_info () beforehand.
11024 * LOCKING: Acquires the loader lock.
11027 mono_marshal_load_type_info (MonoClass* klass)
11030 guint32 native_size = 0, min_align = 1, packing;
11031 MonoMarshalType *info;
11032 MonoClassField* field;
11035 GSList *loads_list;
11037 g_assert (klass != NULL);
11039 if (klass->marshal_info)
11040 return klass->marshal_info;
11042 if (!klass->inited)
11043 mono_class_init (klass);
11045 if (klass->marshal_info)
11046 return klass->marshal_info;
11049 * This function can recursively call itself, so we keep the list of classes which are
11050 * under initialization in a TLS list.
11052 g_assert (!mono_marshal_is_loading_type_info (klass));
11053 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11054 loads_list = g_slist_prepend (loads_list, klass);
11055 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11058 while ((field = mono_class_get_fields (klass, &iter))) {
11059 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11061 if (mono_field_is_deleted (field))
11066 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11068 /* The mempool is protected by the loader lock */
11069 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11070 info->num_fields = count;
11072 /* Try to find a size for this type in metadata */
11073 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11075 if (klass->parent) {
11076 int parent_size = mono_class_native_size (klass->parent, NULL);
11078 /* Add parent size to real size */
11079 native_size += parent_size;
11080 info->native_size = parent_size;
11083 packing = klass->packing_size ? klass->packing_size : 8;
11086 while ((field = mono_class_get_fields (klass, &iter))) {
11090 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11093 if (mono_field_is_deleted (field))
11095 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11096 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11097 NULL, NULL, &info->fields [j].mspec);
11099 info->fields [j].field = field;
11101 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11102 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11103 /* This field is a hack inserted by MCS to empty structures */
11108 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11109 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11110 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11111 &align, TRUE, klass->unicode);
11112 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11113 min_align = MAX (align, min_align);
11114 info->fields [j].offset = info->native_size;
11115 info->fields [j].offset += align - 1;
11116 info->fields [j].offset &= ~(align - 1);
11117 info->native_size = info->fields [j].offset + size;
11119 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11120 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11121 &align, TRUE, klass->unicode);
11122 min_align = MAX (align, min_align);
11123 info->fields [j].offset = field->offset - sizeof (MonoObject);
11124 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11130 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11131 info->native_size = MAX (native_size, info->native_size);
11133 * If the provided Size is equal or larger than the calculated size, and there
11134 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11136 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11137 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11140 min_align = MIN (min_align, packing);
11144 if (info->native_size & (min_align - 1)) {
11145 info->native_size += min_align - 1;
11146 info->native_size &= ~(min_align - 1);
11149 info->min_align = min_align;
11151 /* Update the class's blittable info, if the layouts don't match */
11152 if (info->native_size != mono_class_value_size (klass, NULL))
11153 klass->blittable = FALSE;
11155 /* If this is an array type, ensure that we have element info */
11156 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11157 mono_marshal_load_type_info (klass->element_class);
11160 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11161 loads_list = g_slist_remove (loads_list, klass);
11162 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11164 mono_marshal_lock ();
11165 if (!klass->marshal_info) {
11166 /*We do double-checking locking on marshal_info */
11167 mono_memory_barrier ();
11168 klass->marshal_info = info;
11170 mono_marshal_unlock ();
11172 return klass->marshal_info;
11176 * mono_class_native_size:
11179 * Returns: the native size of an object instance (when marshaled
11180 * to unmanaged code)
11183 mono_class_native_size (MonoClass *klass, guint32 *align)
11185 if (!klass->marshal_info) {
11186 if (mono_marshal_is_loading_type_info (klass)) {
11191 mono_marshal_load_type_info (klass);
11196 *align = klass->marshal_info->min_align;
11198 return klass->marshal_info->native_size;
11202 * mono_type_native_stack_size:
11203 * @t: the type to return the size it uses on the stack
11205 * Returns: the number of bytes required to hold an instance of this
11206 * type on the native stack
11209 mono_type_native_stack_size (MonoType *t, guint32 *align)
11213 g_assert (t != NULL);
11219 *align = sizeof (gpointer);
11220 return sizeof (gpointer);
11224 case MONO_TYPE_BOOLEAN:
11225 case MONO_TYPE_CHAR:
11236 case MONO_TYPE_STRING:
11237 case MONO_TYPE_OBJECT:
11238 case MONO_TYPE_CLASS:
11239 case MONO_TYPE_SZARRAY:
11240 case MONO_TYPE_PTR:
11241 case MONO_TYPE_FNPTR:
11242 case MONO_TYPE_ARRAY:
11243 *align = sizeof (gpointer);
11244 return sizeof (gpointer);
11249 *align = MONO_ABI_ALIGNOF (double);
11253 *align = MONO_ABI_ALIGNOF (gint64);
11255 case MONO_TYPE_GENERICINST:
11256 if (!mono_type_generic_inst_is_valuetype (t)) {
11257 *align = sizeof (gpointer);
11258 return sizeof (gpointer);
11261 case MONO_TYPE_TYPEDBYREF:
11262 case MONO_TYPE_VALUETYPE: {
11264 MonoClass *klass = mono_class_from_mono_type (t);
11266 if (klass->enumtype)
11267 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11269 size = mono_class_native_size (klass, align);
11270 *align = *align + 3;
11280 g_error ("type 0x%02x unknown", t->type);
11286 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11287 gboolean as_field, gboolean unicode)
11289 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11292 switch (native_type) {
11293 case MONO_NATIVE_BOOLEAN:
11296 case MONO_NATIVE_I1:
11297 case MONO_NATIVE_U1:
11300 case MONO_NATIVE_I2:
11301 case MONO_NATIVE_U2:
11302 case MONO_NATIVE_VARIANTBOOL:
11305 case MONO_NATIVE_I4:
11306 case MONO_NATIVE_U4:
11307 case MONO_NATIVE_ERROR:
11310 case MONO_NATIVE_I8:
11311 case MONO_NATIVE_U8:
11312 *align = MONO_ABI_ALIGNOF (gint64);
11314 case MONO_NATIVE_R4:
11317 case MONO_NATIVE_R8:
11318 *align = MONO_ABI_ALIGNOF (double);
11320 case MONO_NATIVE_INT:
11321 case MONO_NATIVE_UINT:
11322 case MONO_NATIVE_LPSTR:
11323 case MONO_NATIVE_LPWSTR:
11324 case MONO_NATIVE_LPTSTR:
11325 case MONO_NATIVE_BSTR:
11326 case MONO_NATIVE_ANSIBSTR:
11327 case MONO_NATIVE_TBSTR:
11328 case MONO_NATIVE_LPARRAY:
11329 case MONO_NATIVE_SAFEARRAY:
11330 case MONO_NATIVE_IUNKNOWN:
11331 case MONO_NATIVE_IDISPATCH:
11332 case MONO_NATIVE_INTERFACE:
11333 case MONO_NATIVE_ASANY:
11334 case MONO_NATIVE_FUNC:
11335 case MONO_NATIVE_LPSTRUCT:
11336 *align = MONO_ABI_ALIGNOF (gpointer);
11337 return sizeof (gpointer);
11338 case MONO_NATIVE_STRUCT:
11339 klass = mono_class_from_mono_type (type);
11340 if (klass == mono_defaults.object_class &&
11341 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11345 return mono_class_native_size (klass, align);
11346 case MONO_NATIVE_BYVALTSTR: {
11347 int esize = unicode ? 2: 1;
11350 return mspec->data.array_data.num_elem * esize;
11352 case MONO_NATIVE_BYVALARRAY: {
11353 // FIXME: Have to consider ArraySubType
11355 klass = mono_class_from_mono_type (type);
11356 if (klass->element_class == mono_defaults.char_class) {
11357 esize = unicode ? 2 : 1;
11360 esize = mono_class_native_size (klass->element_class, align);
11363 return mspec->data.array_data.num_elem * esize;
11365 case MONO_NATIVE_CUSTOM:
11366 *align = sizeof (gpointer);
11367 return sizeof (gpointer);
11369 case MONO_NATIVE_CURRENCY:
11370 case MONO_NATIVE_VBBYREFSTR:
11372 g_error ("native type %02x not implemented", native_type);
11375 g_assert_not_reached ();
11379 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11381 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11390 t = &o->vtable->klass->byval_arg;
11394 case MONO_TYPE_PTR:
11397 case MONO_TYPE_BOOLEAN:
11400 case MONO_TYPE_CHAR:
11405 return mono_object_unbox (o);
11407 case MONO_TYPE_STRING:
11408 switch (string_encoding) {
11409 case MONO_NATIVE_LPWSTR:
11410 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11412 case MONO_NATIVE_LPSTR:
11413 return mono_string_to_lpstr ((MonoString*)o);
11416 g_warning ("marshaling conversion %d not implemented", string_encoding);
11417 g_assert_not_reached ();
11420 case MONO_TYPE_CLASS:
11421 case MONO_TYPE_VALUETYPE: {
11422 MonoMethod *method;
11425 MonoBoolean delete_old = FALSE;
11427 klass = t->data.klass;
11429 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11432 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11433 klass->blittable || klass->enumtype))
11434 return mono_object_unbox (o);
11436 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11437 if (!mono_error_ok (&error)) {
11438 mono_error_set_pending_exception (&error);
11442 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11443 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11447 pa [2] = &delete_old;
11449 mono_runtime_invoke_checked (method, NULL, pa, &error);
11450 if (!mono_error_ok (&error)) {
11451 mono_error_set_pending_exception (&error);
11461 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11465 /* This is a JIT icall, it sets the pending exception */
11467 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11476 t = &o->vtable->klass->byval_arg;
11478 case MONO_TYPE_STRING:
11479 switch (string_encoding) {
11480 case MONO_NATIVE_LPWSTR:
11481 case MONO_NATIVE_LPSTR:
11482 mono_marshal_free (ptr);
11485 g_warning ("marshaling conversion %d not implemented", string_encoding);
11486 g_assert_not_reached ();
11489 case MONO_TYPE_CLASS:
11490 case MONO_TYPE_VALUETYPE: {
11491 klass = t->data.klass;
11493 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11494 klass->blittable || klass->enumtype))
11497 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11498 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11504 mono_runtime_invoke_checked (method, NULL, pa, &error);
11505 if (!mono_error_ok (&error)) {
11506 mono_error_set_pending_exception (&error);
11511 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11512 mono_struct_delete_old (klass, (char *)ptr);
11515 mono_marshal_free (ptr);
11524 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11526 MonoMethodSignature *sig, *csig;
11527 MonoMethodBuilder *mb;
11532 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11533 mb->method->slot = -1;
11535 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11536 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11538 sig = mono_method_signature (method);
11539 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11540 csig->generic_param_count = 0;
11542 #ifndef DISABLE_JIT
11543 mono_mb_emit_ldarg (mb, 0);
11544 for (i = 0; i < csig->param_count; i++)
11545 mono_mb_emit_ldarg (mb, i + 1);
11546 mono_mb_emit_managed_call (mb, method, NULL);
11547 mono_mb_emit_byte (mb, CEE_RET);
11549 /* We can corlib internal methods */
11550 mb->skip_visibility = TRUE;
11552 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11553 info->d.generic_array_helper.method = method;
11554 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11562 * The mono_win32_compat_* functions are implementations of inline
11563 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11564 * although not exported by kernel32.
11566 * We map the appropiate kernel32 entries to these functions using
11567 * dllmaps declared in the global etc/mono/config.
11571 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11573 if (!dest || !source)
11576 memcpy (dest, source, length);
11580 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11582 memset (dest, fill, length);
11586 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11588 if (!dest || !source)
11591 memmove (dest, source, length);
11595 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11597 memset (dest, 0, length);
11601 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11606 for (i = 0; i < len; ++i)
11610 g_assert (i < len);
11613 while (byte && !(byte & 1))
11615 g_assert (byte == 1);
11618 *bitmask = buf [i];
11622 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11624 MonoMethodBuilder *mb;
11625 MonoMethodSignature *sig, *csig;
11626 MonoExceptionClause *clause;
11631 int i, param_count, sig_size, pos_leave;
11632 int coop_gc_var, coop_gc_dummy_local;
11636 klass = method->klass;
11637 image = method->klass->image;
11639 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11641 if ((res = mono_marshal_find_in_cache (cache, method)))
11644 sig = mono_method_signature (method);
11645 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11647 /* add "this" and exception param */
11648 param_count = sig->param_count + sig->hasthis + 1;
11650 /* dup & extend signature */
11651 csig = mono_metadata_signature_alloc (image, param_count);
11652 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11653 memcpy (csig, sig, sig_size);
11654 csig->param_count = param_count;
11657 csig->call_convention = MONO_CALL_DEFAULT;
11659 if (sig->hasthis) {
11661 csig->params [0] = &klass->byval_arg;
11662 /* move params up by one */
11663 for (i = 0; i < sig->param_count; i++)
11664 csig->params [i + 1] = sig->params [i];
11667 /* setup exception param as byref+[out] */
11668 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11669 &mono_defaults.exception_class->byval_arg);
11670 csig->params [param_count - 1]->byref = 1;
11671 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11673 /* convert struct return to object */
11674 if (MONO_TYPE_ISSTRUCT (sig->ret))
11675 csig->ret = &mono_defaults.object_class->byval_arg;
11677 #ifndef DISABLE_JIT
11678 /* local 0 (temp for exception object) */
11679 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11681 /* local 1 (temp for result) */
11682 if (!MONO_TYPE_IS_VOID (sig->ret))
11683 mono_mb_add_local (mb, sig->ret);
11685 if (mono_threads_is_coop_enabled ()) {
11686 /* local 4, the local to be used when calling the reset_blocking funcs */
11687 /* tons of code hardcode 3 to be the return var */
11688 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11689 /* local 5, the local used to get a stack address for suspend funcs */
11690 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11693 /* clear exception arg */
11694 mono_mb_emit_ldarg (mb, param_count - 1);
11695 mono_mb_emit_byte (mb, CEE_LDNULL);
11696 mono_mb_emit_byte (mb, CEE_STIND_REF);
11698 if (mono_threads_is_coop_enabled ()) {
11699 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11700 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11701 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11702 mono_mb_emit_stloc (mb, coop_gc_var);
11706 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11707 clause->try_offset = mono_mb_get_label (mb);
11709 /* push method's args */
11710 for (i = 0; i < param_count - 1; i++) {
11714 mono_mb_emit_ldarg (mb, i);
11716 /* get the byval type of the param */
11717 klass = mono_class_from_mono_type (csig->params [i]);
11718 type = &klass->byval_arg;
11720 /* unbox struct args */
11721 if (MONO_TYPE_ISSTRUCT (type)) {
11722 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11724 /* byref args & and the "this" arg must remain a ptr.
11725 Otherwise make a copy of the value type */
11726 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11727 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11729 csig->params [i] = &mono_defaults.object_class->byval_arg;
11734 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11735 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11737 mono_mb_emit_op (mb, CEE_CALL, method);
11739 /* save result at local 1 */
11740 if (!MONO_TYPE_IS_VOID (sig->ret))
11741 mono_mb_emit_stloc (mb, 1);
11743 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11746 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11747 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11748 clause->data.catch_class = mono_defaults.object_class;
11750 clause->handler_offset = mono_mb_get_label (mb);
11752 /* store exception at local 0 */
11753 mono_mb_emit_stloc (mb, 0);
11754 mono_mb_emit_ldarg (mb, param_count - 1);
11755 mono_mb_emit_ldloc (mb, 0);
11756 mono_mb_emit_byte (mb, CEE_STIND_REF);
11757 mono_mb_emit_branch (mb, CEE_LEAVE);
11759 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11761 mono_mb_set_clauses (mb, 1, clause);
11763 mono_mb_patch_branch (mb, pos_leave);
11766 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11767 mono_mb_emit_ldloc (mb, 1);
11769 /* box the return value */
11770 if (MONO_TYPE_ISSTRUCT (sig->ret))
11771 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11774 if (mono_threads_is_coop_enabled ()) {
11775 /* XXX merge reset_blocking_end with detach */
11776 mono_mb_emit_ldloc (mb, coop_gc_var);
11777 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11778 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11781 mono_mb_emit_byte (mb, CEE_RET);
11784 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11791 * mono_marshal_free_dynamic_wrappers:
11793 * Free wrappers of the dynamic method METHOD.
11796 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11798 MonoImage *image = method->klass->image;
11800 g_assert (method_is_dynamic (method));
11802 /* This could be called during shutdown */
11803 if (marshal_mutex_initialized)
11804 mono_marshal_lock ();
11806 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11807 * they could be shared with other methods ?
11809 if (image->wrapper_caches.runtime_invoke_direct_cache)
11810 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11811 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11812 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11813 // FIXME: Need to clear the caches in other images as well
11814 if (image->delegate_bound_static_invoke_cache)
11815 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11817 if (marshal_mutex_initialized)
11818 mono_marshal_unlock ();