2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-error-internals.h>
53 /* #define DEBUG_RUNTIME_CODE */
55 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
59 #include "mono/cil/opcode.def"
65 * This mutex protects the various marshalling related caches in MonoImage
66 * and a few other data structures static to this file.
68 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
69 * runtime locking latice. Which means it can take simple locks suck as the image lock.
71 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
72 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
73 static mono_mutex_t marshal_mutex;
74 static gboolean marshal_mutex_initialized;
76 static MonoNativeTlsKey last_error_tls_id;
78 static MonoNativeTlsKey load_type_info_tls_id;
80 static gboolean use_aot_wrappers;
83 delegate_hash_table_add (MonoDelegate *d);
86 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
89 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
92 mono_struct_delete_old (MonoClass *klass, char *ptr);
95 mono_marshal_string_to_utf16 (MonoString *s);
98 mono_marshal_string_to_utf16_copy (MonoString *s);
101 mono_string_to_lpstr (MonoString *string_obj);
103 static MonoStringBuilder *
104 mono_string_utf8_to_builder2 (char *text);
106 static MonoStringBuilder *
107 mono_string_utf16_to_builder2 (gunichar2 *text);
110 mono_string_new_len_wrapper (const char *text, guint length);
113 mono_string_from_byvalstr (const char *data, int len);
116 mono_string_from_byvalwstr (gunichar2 *data, int len);
119 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
122 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
125 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
128 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
130 static MonoAsyncResult *
131 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
137 mono_marshal_set_last_error_windows (int error);
140 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
142 static void init_safe_handle (void);
145 ves_icall_marshal_alloc (gulong size);
148 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
151 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
154 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
157 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
160 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
163 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
166 mono_delegate_to_ftnptr (MonoDelegate *delegate);
169 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
172 mono_array_to_savearray (MonoArray *array);
175 mono_array_to_lparray (MonoArray *array);
178 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
181 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
184 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
187 mono_array_to_savearray (MonoArray *array);
190 mono_array_to_lparray (MonoArray *array);
193 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 /* Lazy class loading functions */
196 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
197 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
198 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
199 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
201 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
202 static MonoMethod *sh_dangerous_add_ref;
203 static MonoMethod *sh_dangerous_release;
208 sh_dangerous_add_ref = mono_class_get_method_from_name (
209 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
210 sh_dangerous_release = mono_class_get_method_from_name (
211 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
215 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
217 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
219 mono_register_jit_icall (func, name, sig, no_wrapper);
223 mono_signature_no_pinvoke (MonoMethod *method)
225 MonoMethodSignature *sig = mono_method_signature (method);
227 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
228 sig->pinvoke = FALSE;
235 mono_marshal_init_tls (void)
237 mono_native_tls_alloc (&last_error_tls_id, NULL);
238 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
242 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
245 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
246 mono_error_set_pending_exception (&error);
251 mono_marshal_init (void)
253 static gboolean module_initialized = FALSE;
255 if (!module_initialized) {
256 module_initialized = TRUE;
257 mono_os_mutex_init_recursive (&marshal_mutex);
258 marshal_mutex_initialized = TRUE;
260 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
261 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
262 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
263 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
264 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
265 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
266 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
267 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
268 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
269 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
270 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
271 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
272 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
273 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
274 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
275 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
276 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
277 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
278 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
279 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
280 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
281 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
282 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
283 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
284 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
285 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
286 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
287 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
288 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
289 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
290 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
291 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
292 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
293 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
294 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
295 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
296 register_icall (g_free, "g_free", "void ptr", FALSE);
297 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
298 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
299 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
300 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
301 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
302 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
303 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
304 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
305 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
306 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
308 mono_cominterop_init ();
309 mono_remoting_init ();
311 if (mono_threads_is_coop_enabled ()) {
312 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
313 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
314 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
315 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
321 mono_marshal_cleanup (void)
323 mono_cominterop_cleanup ();
325 mono_native_tls_free (load_type_info_tls_id);
326 mono_native_tls_free (last_error_tls_id);
327 mono_os_mutex_destroy (&marshal_mutex);
328 marshal_mutex_initialized = FALSE;
332 mono_marshal_lock_internal (void)
334 mono_marshal_lock ();
338 mono_marshal_unlock_internal (void)
340 mono_marshal_unlock ();
343 /* This is a JIT icall, it sets the pending exception and return NULL on error */
345 mono_delegate_to_ftnptr (MonoDelegate *delegate)
348 MonoMethod *method, *wrapper;
350 uint32_t target_handle = 0;
355 if (delegate->delegate_trampoline)
356 return delegate->delegate_trampoline;
358 klass = ((MonoObject *)delegate)->vtable->klass;
359 g_assert (klass->delegate);
361 method = delegate->method;
362 if (delegate->method_is_virtual)
363 method = mono_object_get_virtual_method (delegate->target, method);
365 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
366 const char *exc_class, *exc_arg;
369 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
371 g_assert (exc_class);
372 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
378 if (delegate->target) {
379 /* Produce a location which can be embedded in JITted code */
380 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
383 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
385 delegate->delegate_trampoline = mono_compile_method (wrapper);
387 // Add the delegate to the delegate hash table
388 delegate_hash_table_add (delegate);
390 /* when the object is collected, collect the dynamic method, too */
391 mono_object_register_finalizer ((MonoObject*)delegate, &error);
392 if (!mono_error_ok (&error)) {
393 mono_error_set_pending_exception (&error);
397 return delegate->delegate_trampoline;
401 * this hash table maps from a delegate trampoline object to a weak reference
402 * of the delegate. As an optimizations with a non-moving GC we store the
403 * object pointer itself, otherwise we use a GC handle.
405 static GHashTable *delegate_hash_table;
408 delegate_hash_table_new (void) {
409 return g_hash_table_new (NULL, NULL);
413 delegate_hash_table_remove (MonoDelegate *d)
415 guint32 gchandle = 0;
417 mono_marshal_lock ();
418 if (delegate_hash_table == NULL)
419 delegate_hash_table = delegate_hash_table_new ();
420 if (mono_gc_is_moving ())
421 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
422 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
423 mono_marshal_unlock ();
424 if (gchandle && mono_gc_is_moving ())
425 mono_gchandle_free (gchandle);
429 delegate_hash_table_add (MonoDelegate *d)
432 guint32 old_gchandle;
434 mono_marshal_lock ();
435 if (delegate_hash_table == NULL)
436 delegate_hash_table = delegate_hash_table_new ();
437 if (mono_gc_is_moving ()) {
438 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
439 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
440 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
442 mono_gchandle_free (old_gchandle);
444 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
446 mono_marshal_unlock ();
450 * mono_marshal_use_aot_wrappers:
452 * Instructs this module to use AOT compatible wrappers.
455 mono_marshal_use_aot_wrappers (gboolean use)
457 use_aot_wrappers = use;
461 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
464 MonoCustomAttrInfo *cinfo;
465 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
467 /* The attribute is only available in Net 2.0 */
468 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
470 * The pinvoke attributes are stored in a real custom attribute so we have to
473 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
474 if (!mono_error_ok (&error)) {
475 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
476 mono_error_cleanup (&error);
478 if (cinfo && !mono_runtime_get_no_exec ()) {
479 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
481 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
483 if (!mono_error_ok (&error)) {
484 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
485 mono_error_cleanup (&error);
489 mono_custom_attrs_free (cinfo);
494 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
496 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
505 mono_marshal_lock ();
506 if (delegate_hash_table == NULL)
507 delegate_hash_table = delegate_hash_table_new ();
509 if (mono_gc_is_moving ()) {
510 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
511 mono_marshal_unlock ();
513 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
517 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
518 mono_marshal_unlock ();
521 /* This is a native function, so construct a delegate for it */
522 MonoMethodSignature *sig;
524 MonoMarshalSpec **mspecs;
525 MonoMethod *invoke = mono_get_delegate_invoke (klass);
526 MonoMethodPInvoke piinfo;
527 MonoObject *this_obj;
530 if (use_aot_wrappers) {
531 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
532 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
533 if (!is_ok (&error)) {
534 mono_error_set_pending_exception (&error);
538 memset (&piinfo, 0, sizeof (piinfo));
539 parse_unmanaged_function_pointer_attr (klass, &piinfo);
541 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
542 mono_method_get_marshal_info (invoke, mspecs);
543 /* Freed below so don't alloc from mempool */
544 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
547 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
550 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
552 mono_metadata_free_marshal_spec (mspecs [i]);
557 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
558 if (!mono_error_ok (&error)) {
559 mono_error_set_pending_exception (&error);
562 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
565 if (d->object.vtable->domain != mono_domain_get ()) {
566 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
574 mono_delegate_free_ftnptr (MonoDelegate *delegate)
579 delegate_hash_table_remove (delegate);
581 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
583 if (!delegate->target) {
584 /* The wrapper method is shared between delegates -> no need to free it */
593 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
596 method = mono_jit_info_get_method (ji);
597 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
599 /*the target gchandle is the first entry after size and the wrapper itself.*/
600 gchandle = GPOINTER_TO_UINT (method_data [2]);
603 mono_gchandle_free (gchandle);
605 mono_runtime_free_method (mono_object_domain (delegate), method);
610 mono_string_from_byvalstr (const char *data, int max_len)
612 MonoDomain *domain = mono_domain_get ();
618 while (len < max_len - 1 && data [len])
621 return mono_string_new_len (domain, data, len);
624 /* This is a JIT icall, it sets the pending exception and return NULL on error */
626 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
629 MonoString *res = NULL;
630 MonoDomain *domain = mono_domain_get ();
636 while (data [len]) len++;
638 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
639 if (!mono_error_ok (&error)) {
640 mono_error_set_pending_exception (&error);
647 mono_array_to_savearray (MonoArray *array)
652 g_assert_not_reached ();
657 mono_array_to_lparray (MonoArray *array)
660 gpointer *nativeArray = NULL;
661 int nativeArraySize = 0;
671 klass = array->obj.vtable->klass;
673 switch (klass->element_class->byval_arg.type) {
675 g_assert_not_reached ();
677 case MONO_TYPE_CLASS:
678 nativeArraySize = array->max_length;
679 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
680 for(i = 0; i < nativeArraySize; ++i)
681 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
684 case MONO_TYPE_BOOLEAN:
697 case MONO_TYPE_VALUETYPE:
701 case MONO_TYPE_GENERICINST:
702 case MONO_TYPE_OBJECT:
703 case MONO_TYPE_ARRAY:
704 case MONO_TYPE_SZARRAY:
705 case MONO_TYPE_STRING:
707 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
708 g_assert_not_reached ();
711 return array->vector;
715 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
726 klass = array->obj.vtable->klass;
728 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
729 for(i = 0; i < array->max_length; ++i)
730 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
737 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
739 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
741 if (elclass == mono_defaults.byte_class) {
742 GError *error = NULL;
746 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
749 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
753 g_error_free (error);
756 g_assert_not_reached ();
760 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
762 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
765 /* This is a JIT icall, it sets the pending exception and returns on error */
767 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
769 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
771 if (elclass == mono_defaults.byte_class) {
773 GError *error = NULL;
775 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
777 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
778 g_error_free (error);
782 memcpy (native_arr, as, MIN (strlen (as), elnum));
785 g_assert_not_reached ();
790 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
792 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
795 static MonoStringBuilder *
796 mono_string_builder_new (int starting_string_length)
798 static MonoClass *string_builder_class;
799 static MonoMethod *sb_ctor;
800 static void *args [1];
803 int initial_len = starting_string_length;
809 MonoMethodDesc *desc;
812 string_builder_class = mono_class_get_string_builder_class ();
813 g_assert (string_builder_class);
814 desc = mono_method_desc_new (":.ctor(int)", FALSE);
815 m = mono_method_desc_search_in_class (desc, string_builder_class);
817 mono_method_desc_free (desc);
818 mono_memory_barrier ();
822 // We make a new array in the _to_builder function, so this
823 // array will always be garbage collected.
824 args [0] = &initial_len;
826 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
827 mono_error_assert_ok (&error);
830 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
831 g_assert (exc == NULL);
832 mono_error_assert_ok (&error);
834 g_assert (sb->chunkChars->max_length >= initial_len);
840 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
842 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
843 gunichar2 *charSrc = (gunichar2 *)text;
844 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
846 sb->chunkLength = string_len;
852 mono_string_utf16_to_builder2 (gunichar2 *text)
858 for (len = 0; text [len] != 0; ++len);
860 MonoStringBuilder *sb = mono_string_builder_new (len);
861 mono_string_utf16_to_builder (sb, text);
867 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
872 int len = strlen (text);
873 if (len > mono_string_builder_capacity (sb))
874 len = mono_string_builder_capacity (sb);
876 GError *error = NULL;
878 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
881 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
882 mono_string_utf16_to_builder_copy (sb, ut, copied);
884 g_error_free (error);
890 mono_string_utf8_to_builder2 (char *text)
895 int len = strlen (text);
896 MonoStringBuilder *sb = mono_string_builder_new (len);
897 mono_string_utf8_to_builder (sb, text);
904 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
910 for (len = 0; text [len] != 0; ++len);
912 if (len > mono_string_builder_capacity (sb))
913 len = mono_string_builder_capacity (sb);
915 mono_string_utf16_to_builder_copy (sb, text, len);
919 * mono_string_builder_to_utf8:
920 * @sb: the string builder
922 * Converts to utf8 the contents of the MonoStringBuilder.
924 * Returns: a utf8 string with the contents of the StringBuilder.
926 * The return value must be released with g_free.
928 * This is a JIT icall, it sets the pending exception and returns NULL on error.
931 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
934 GError *gerror = NULL;
939 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
941 guint str_len = mono_string_builder_string_length (sb);
943 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
946 g_error_free (gerror);
948 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
951 guint len = mono_string_builder_capacity (sb) + 1;
952 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
953 if (!mono_error_ok (&error)) {
956 mono_error_set_pending_exception (&error);
960 g_assert (str_len < len);
961 memcpy (res, tmp, str_len * sizeof (gchar));
971 * mono_string_builder_to_utf16:
972 * @sb: the string builder
974 * Converts to utf16 the contents of the MonoStringBuilder.
976 * Returns: a utf16 string with the contents of the StringBuilder.
978 * The return value must not be freed.
979 * This is a JIT icall, it sets the pending exception and returns NULL on error.
982 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
989 g_assert (sb->chunkChars);
991 guint len = mono_string_builder_capacity (sb);
996 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
997 if (!mono_error_ok (&error)) {
998 mono_error_set_pending_exception (&error);
1007 MonoStringBuilder* chunk = sb;
1009 if (chunk->chunkLength > 0) {
1010 // Check that we will not overrun our boundaries.
1011 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1013 if (chunk->chunkLength <= len) {
1014 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1016 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1019 len -= chunk->chunkLength;
1021 chunk = chunk->chunkPrevious;
1022 } while (chunk != NULL);
1027 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1029 mono_string_to_lpstr (MonoString *s)
1034 GError *error = NULL;
1040 as = CoTaskMemAlloc (1);
1045 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1047 MonoException *exc = mono_get_exception_argument ("string", error->message);
1048 g_error_free (error);
1049 mono_set_pending_exception (exc);
1052 as = CoTaskMemAlloc (len + 1);
1053 memcpy (as, tmp, len + 1);
1058 return mono_string_to_utf8 (s);
1063 mono_string_to_ansibstr (MonoString *string_obj)
1065 g_error ("UnmanagedMarshal.BStr is not implemented.");
1070 * mono_string_to_byvalstr:
1071 * @dst: Where to store the null-terminated utf8 decoded string.
1072 * @src: the MonoString to copy.
1073 * @size: the maximum number of bytes to copy.
1075 * Copies the MonoString pointed to by @src as a utf8 string
1076 * into @dst, it copies at most @size bytes into the destination.
1079 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1084 g_assert (dst != NULL);
1085 g_assert (size > 0);
1087 memset (dst, 0, size);
1091 s = mono_string_to_utf8 (src);
1092 len = MIN (size, strlen (s));
1095 memcpy (dst, s, len);
1100 * mono_string_to_byvalwstr:
1101 * @dst: Where to store the null-terminated utf16 decoded string.
1102 * @src: the MonoString to copy.
1103 * @size: the maximum number of bytes to copy.
1105 * Copies the MonoString pointed to by @src as a utf16 string into
1106 * @dst, it copies at most @size bytes into the destination (including
1107 * a terminating 16-bit zero terminator).
1110 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1114 g_assert (dst != NULL);
1115 g_assert (size > 1);
1118 memset (dst, 0, size * 2);
1122 len = MIN (size, (mono_string_length (src)));
1123 memcpy (dst, mono_string_chars (src), size * 2);
1124 if (size <= mono_string_length (src))
1126 *((gunichar2 *) dst + len) = 0;
1130 mono_string_new_len_wrapper (const char *text, guint length)
1132 return mono_string_new_len (mono_domain_get (), text, length);
1138 * mono_mb_emit_exception_marshal_directive:
1140 * This function assumes ownership of MSG, which should be malloc-ed.
1143 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1148 s = mono_image_strdup (mb->method->klass->image, msg);
1153 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1156 #endif /* !DISABLE_JIT */
1159 mono_type_to_ldind (MonoType *type)
1165 switch (type->type) {
1167 return CEE_LDIND_I1;
1169 case MONO_TYPE_BOOLEAN:
1170 return CEE_LDIND_U1;
1172 return CEE_LDIND_I2;
1174 case MONO_TYPE_CHAR:
1175 return CEE_LDIND_U2;
1177 return CEE_LDIND_I4;
1179 return CEE_LDIND_U4;
1183 case MONO_TYPE_FNPTR:
1185 case MONO_TYPE_CLASS:
1186 case MONO_TYPE_STRING:
1187 case MONO_TYPE_OBJECT:
1188 case MONO_TYPE_SZARRAY:
1189 case MONO_TYPE_ARRAY:
1190 return CEE_LDIND_REF;
1193 return CEE_LDIND_I8;
1195 return CEE_LDIND_R4;
1197 return CEE_LDIND_R8;
1198 case MONO_TYPE_VALUETYPE:
1199 if (type->data.klass->enumtype) {
1200 type = mono_class_enum_basetype (type->data.klass);
1204 case MONO_TYPE_TYPEDBYREF:
1206 case MONO_TYPE_GENERICINST:
1207 type = &type->data.generic_class->container_class->byval_arg;
1210 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1216 mono_type_to_stind (MonoType *type)
1219 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1223 switch (type->type) {
1226 case MONO_TYPE_BOOLEAN:
1227 return CEE_STIND_I1;
1230 case MONO_TYPE_CHAR:
1231 return CEE_STIND_I2;
1234 return CEE_STIND_I4;
1238 case MONO_TYPE_FNPTR:
1240 case MONO_TYPE_CLASS:
1241 case MONO_TYPE_STRING:
1242 case MONO_TYPE_OBJECT:
1243 case MONO_TYPE_SZARRAY:
1244 case MONO_TYPE_ARRAY:
1245 return CEE_STIND_REF;
1248 return CEE_STIND_I8;
1250 return CEE_STIND_R4;
1252 return CEE_STIND_R8;
1253 case MONO_TYPE_VALUETYPE:
1254 if (type->data.klass->enumtype) {
1255 type = mono_class_enum_basetype (type->data.klass);
1259 case MONO_TYPE_TYPEDBYREF:
1261 case MONO_TYPE_GENERICINST:
1262 type = &type->data.generic_class->container_class->byval_arg;
1265 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1273 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1276 case MONO_MARSHAL_CONV_BOOL_I4:
1277 mono_mb_emit_ldloc (mb, 1);
1278 mono_mb_emit_ldloc (mb, 0);
1279 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1280 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1281 mono_mb_emit_byte (mb, 3);
1282 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1283 mono_mb_emit_byte (mb, CEE_BR_S);
1284 mono_mb_emit_byte (mb, 1);
1285 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1286 mono_mb_emit_byte (mb, CEE_STIND_I1);
1288 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1289 mono_mb_emit_ldloc (mb, 1);
1290 mono_mb_emit_ldloc (mb, 0);
1291 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1292 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1293 mono_mb_emit_byte (mb, 3);
1294 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1295 mono_mb_emit_byte (mb, CEE_BR_S);
1296 mono_mb_emit_byte (mb, 1);
1297 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1298 mono_mb_emit_byte (mb, CEE_STIND_I1);
1300 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1301 MonoClass *eklass = NULL;
1304 if (type->type == MONO_TYPE_SZARRAY) {
1305 eklass = type->data.klass;
1307 g_assert_not_reached ();
1310 esize = mono_class_native_size (eklass, NULL);
1312 /* create a new array */
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1315 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1316 mono_mb_emit_byte (mb, CEE_STIND_REF);
1318 if (eklass->blittable) {
1319 /* copy the elements */
1320 mono_mb_emit_ldloc (mb, 1);
1321 mono_mb_emit_byte (mb, CEE_LDIND_I);
1322 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1323 mono_mb_emit_byte (mb, CEE_ADD);
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1326 mono_mb_emit_byte (mb, CEE_PREFIX1);
1327 mono_mb_emit_byte (mb, CEE_CPBLK);
1330 int array_var, src_var, dst_var, index_var;
1331 guint32 label2, label3;
1333 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1334 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1335 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1338 mono_mb_emit_ldloc (mb, 1);
1339 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1340 mono_mb_emit_stloc (mb, array_var);
1342 /* save the old src pointer */
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_stloc (mb, src_var);
1345 /* save the old dst pointer */
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_stloc (mb, dst_var);
1349 /* Emit marshalling loop */
1350 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1351 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1352 mono_mb_emit_stloc (mb, index_var);
1355 label2 = mono_mb_get_label (mb);
1356 mono_mb_emit_ldloc (mb, index_var);
1357 mono_mb_emit_ldloc (mb, array_var);
1358 mono_mb_emit_byte (mb, CEE_LDLEN);
1359 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1361 /* src is already set */
1364 mono_mb_emit_ldloc (mb, array_var);
1365 mono_mb_emit_ldloc (mb, index_var);
1366 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1367 mono_mb_emit_stloc (mb, 1);
1369 /* Do the conversion */
1370 emit_struct_conv (mb, eklass, TRUE);
1373 mono_mb_emit_add_to_local (mb, index_var, 1);
1375 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1377 mono_mb_patch_branch (mb, label3);
1379 /* restore the old src pointer */
1380 mono_mb_emit_ldloc (mb, src_var);
1381 mono_mb_emit_stloc (mb, 0);
1382 /* restore the old dst pointer */
1383 mono_mb_emit_ldloc (mb, dst_var);
1384 mono_mb_emit_stloc (mb, 1);
1388 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1389 MonoClass *eclass = mono_defaults.char_class;
1391 /* create a new array */
1392 mono_mb_emit_ldloc (mb, 1);
1393 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1394 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1395 mono_mb_emit_byte (mb, CEE_STIND_REF);
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1399 mono_mb_emit_ldloc (mb, 0);
1400 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1401 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1404 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1405 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1406 mono_mb_emit_ldloc (mb, 1);
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_string_from_byvalstr);
1411 mono_mb_emit_ldloc (mb, 1);
1412 mono_mb_emit_ldloc (mb, 0);
1413 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1415 mono_mb_emit_byte (mb, CEE_STIND_REF);
1417 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1418 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1419 mono_mb_emit_ldloc (mb, 1);
1420 mono_mb_emit_ldloc (mb, 0);
1421 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1422 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1424 mono_mb_emit_ldloc (mb, 1);
1425 mono_mb_emit_ldloc (mb, 0);
1426 mono_mb_emit_icall (mb, mono_string_from_utf16);
1428 mono_mb_emit_byte (mb, CEE_STIND_REF);
1430 case MONO_MARSHAL_CONV_STR_LPTSTR:
1431 mono_mb_emit_ldloc (mb, 1);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_byte (mb, CEE_LDIND_I);
1435 mono_mb_emit_icall (mb, mono_string_from_utf16);
1437 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1439 mono_mb_emit_byte (mb, CEE_STIND_REF);
1441 case MONO_MARSHAL_CONV_STR_LPSTR:
1442 mono_mb_emit_ldloc (mb, 1);
1443 mono_mb_emit_ldloc (mb, 0);
1444 mono_mb_emit_byte (mb, CEE_LDIND_I);
1445 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1446 mono_mb_emit_byte (mb, CEE_STIND_REF);
1448 case MONO_MARSHAL_CONV_STR_LPWSTR:
1449 mono_mb_emit_ldloc (mb, 1);
1450 mono_mb_emit_ldloc (mb, 0);
1451 mono_mb_emit_byte (mb, CEE_LDIND_I);
1452 mono_mb_emit_icall (mb, mono_string_from_utf16);
1453 mono_mb_emit_byte (mb, CEE_STIND_REF);
1455 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1456 MonoClass *klass = mono_class_from_mono_type (type);
1457 int src_var, dst_var;
1459 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1460 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1462 /* *dst = new object */
1463 mono_mb_emit_ldloc (mb, 1);
1464 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1465 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1466 mono_mb_emit_byte (mb, CEE_STIND_REF);
1468 /* save the old src pointer */
1469 mono_mb_emit_ldloc (mb, 0);
1470 mono_mb_emit_stloc (mb, src_var);
1471 /* save the old dst pointer */
1472 mono_mb_emit_ldloc (mb, 1);
1473 mono_mb_emit_stloc (mb, dst_var);
1475 /* dst = pointer to newly created object data */
1476 mono_mb_emit_ldloc (mb, 1);
1477 mono_mb_emit_byte (mb, CEE_LDIND_I);
1478 mono_mb_emit_icon (mb, sizeof (MonoObject));
1479 mono_mb_emit_byte (mb, CEE_ADD);
1480 mono_mb_emit_stloc (mb, 1);
1482 emit_struct_conv (mb, klass, TRUE);
1484 /* restore the old src pointer */
1485 mono_mb_emit_ldloc (mb, src_var);
1486 mono_mb_emit_stloc (mb, 0);
1487 /* restore the old dst pointer */
1488 mono_mb_emit_ldloc (mb, dst_var);
1489 mono_mb_emit_stloc (mb, 1);
1492 case MONO_MARSHAL_CONV_DEL_FTN: {
1493 MonoClass *klass = mono_class_from_mono_type (type);
1495 mono_mb_emit_ldloc (mb, 1);
1496 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1497 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1498 mono_mb_emit_ldloc (mb, 0);
1499 mono_mb_emit_byte (mb, CEE_LDIND_I);
1500 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1501 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1505 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1509 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1510 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1511 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1512 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1514 #endif /* DISABLE_COM */
1516 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1518 * Passing SafeHandles as ref does not allow the unmanaged code
1519 * to change the SafeHandle value. If the value is changed,
1520 * we should issue a diagnostic exception (NotSupportedException)
1521 * that informs the user that changes to handles in unmanaged code
1524 * Since we currently have no access to the original
1525 * SafeHandle that was used during the marshalling,
1526 * for now we just ignore this, and ignore/discard any
1527 * changes that might have happened to the handle.
1532 case MONO_MARSHAL_CONV_HANDLEREF: {
1534 * Passing HandleRefs in a struct that is ref()ed does not
1535 * copy the values back to the HandleRef
1540 case MONO_MARSHAL_CONV_STR_BSTR:
1541 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1542 case MONO_MARSHAL_CONV_STR_TBSTR:
1543 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1545 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1547 mono_mb_emit_exception_marshal_directive (mb, msg);
1554 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1557 if (!ind_store_type)
1558 ind_store_type = &dummy;
1559 *ind_store_type = CEE_STIND_I;
1561 case MONO_MARSHAL_CONV_STR_LPWSTR:
1562 return mono_marshal_string_to_utf16;
1563 case MONO_MARSHAL_CONV_LPWSTR_STR:
1564 *ind_store_type = CEE_STIND_REF;
1565 return mono_string_from_utf16;
1566 case MONO_MARSHAL_CONV_LPTSTR_STR:
1567 *ind_store_type = CEE_STIND_REF;
1568 return mono_string_new_wrapper;
1569 case MONO_MARSHAL_CONV_LPSTR_STR:
1570 *ind_store_type = CEE_STIND_REF;
1571 return mono_string_new_wrapper;
1572 case MONO_MARSHAL_CONV_STR_LPTSTR:
1574 return mono_marshal_string_to_utf16;
1576 return mono_string_to_lpstr;
1578 case MONO_MARSHAL_CONV_STR_LPSTR:
1579 return mono_string_to_lpstr;
1580 case MONO_MARSHAL_CONV_STR_BSTR:
1581 return mono_string_to_bstr;
1582 case MONO_MARSHAL_CONV_BSTR_STR:
1583 *ind_store_type = CEE_STIND_REF;
1584 return mono_string_from_bstr;
1585 case MONO_MARSHAL_CONV_STR_TBSTR:
1586 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1587 return mono_string_to_ansibstr;
1588 case MONO_MARSHAL_CONV_SB_LPSTR:
1589 return mono_string_builder_to_utf8;
1590 case MONO_MARSHAL_CONV_SB_LPTSTR:
1592 return mono_string_builder_to_utf16;
1594 return mono_string_builder_to_utf8;
1596 case MONO_MARSHAL_CONV_SB_LPWSTR:
1597 return mono_string_builder_to_utf16;
1598 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1599 return mono_array_to_savearray;
1600 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1601 return mono_array_to_lparray;
1602 case MONO_MARSHAL_FREE_LPARRAY:
1603 return mono_free_lparray;
1604 case MONO_MARSHAL_CONV_DEL_FTN:
1605 return mono_delegate_to_ftnptr;
1606 case MONO_MARSHAL_CONV_FTN_DEL:
1607 *ind_store_type = CEE_STIND_REF;
1608 return mono_ftnptr_to_delegate;
1609 case MONO_MARSHAL_CONV_LPSTR_SB:
1610 *ind_store_type = CEE_STIND_REF;
1611 return mono_string_utf8_to_builder;
1612 case MONO_MARSHAL_CONV_LPTSTR_SB:
1613 *ind_store_type = CEE_STIND_REF;
1615 return mono_string_utf16_to_builder;
1617 return mono_string_utf8_to_builder;
1619 case MONO_MARSHAL_CONV_LPWSTR_SB:
1620 *ind_store_type = CEE_STIND_REF;
1621 return mono_string_utf16_to_builder;
1622 case MONO_MARSHAL_FREE_ARRAY:
1623 return mono_marshal_free_array;
1624 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1625 return mono_string_to_byvalstr;
1626 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1627 return mono_string_to_byvalwstr;
1629 g_assert_not_reached ();
1636 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1642 case MONO_MARSHAL_CONV_BOOL_I4:
1643 mono_mb_emit_ldloc (mb, 1);
1644 mono_mb_emit_ldloc (mb, 0);
1645 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1646 mono_mb_emit_byte (mb, CEE_STIND_I4);
1648 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1649 mono_mb_emit_ldloc (mb, 1);
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1652 mono_mb_emit_byte (mb, CEE_NEG);
1653 mono_mb_emit_byte (mb, CEE_STIND_I2);
1655 case MONO_MARSHAL_CONV_STR_LPWSTR:
1656 case MONO_MARSHAL_CONV_STR_LPSTR:
1657 case MONO_MARSHAL_CONV_STR_LPTSTR:
1658 case MONO_MARSHAL_CONV_STR_BSTR:
1659 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1660 case MONO_MARSHAL_CONV_STR_TBSTR: {
1663 /* free space if free == true */
1664 mono_mb_emit_ldloc (mb, 2);
1665 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1666 mono_mb_emit_ldloc (mb, 1);
1667 mono_mb_emit_byte (mb, CEE_LDIND_I);
1668 mono_mb_emit_icall (mb, g_free);
1669 mono_mb_patch_short_branch (mb, pos);
1671 mono_mb_emit_ldloc (mb, 1);
1672 mono_mb_emit_ldloc (mb, 0);
1673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1674 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1675 mono_mb_emit_byte (mb, stind_op);
1678 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1679 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1680 case MONO_MARSHAL_CONV_DEL_FTN:
1681 mono_mb_emit_ldloc (mb, 1);
1682 mono_mb_emit_ldloc (mb, 0);
1683 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1684 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1685 mono_mb_emit_byte (mb, stind_op);
1687 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1688 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1691 mono_mb_emit_ldloc (mb, 1); /* dst */
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1694 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1695 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1698 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1699 MonoClass *eklass = NULL;
1702 if (type->type == MONO_TYPE_SZARRAY) {
1703 eklass = type->data.klass;
1705 g_assert_not_reached ();
1708 if (eklass->valuetype)
1709 esize = mono_class_native_size (eklass, NULL);
1711 esize = sizeof (gpointer);
1713 mono_mb_emit_ldloc (mb, 0);
1714 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1715 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1717 if (eklass->blittable) {
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_ldloc (mb, 0);
1720 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1721 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1722 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1723 mono_mb_emit_byte (mb, CEE_PREFIX1);
1724 mono_mb_emit_byte (mb, CEE_CPBLK);
1726 int array_var, src_var, dst_var, index_var;
1727 guint32 label2, label3;
1729 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1730 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1731 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1736 mono_mb_emit_stloc (mb, array_var);
1738 /* save the old src pointer */
1739 mono_mb_emit_ldloc (mb, 0);
1740 mono_mb_emit_stloc (mb, src_var);
1741 /* save the old dst pointer */
1742 mono_mb_emit_ldloc (mb, 1);
1743 mono_mb_emit_stloc (mb, dst_var);
1745 /* Emit marshalling loop */
1746 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1747 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1748 mono_mb_emit_stloc (mb, index_var);
1751 label2 = mono_mb_get_label (mb);
1752 mono_mb_emit_ldloc (mb, index_var);
1753 mono_mb_emit_ldloc (mb, array_var);
1754 mono_mb_emit_byte (mb, CEE_LDLEN);
1755 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1758 mono_mb_emit_ldloc (mb, array_var);
1759 mono_mb_emit_ldloc (mb, index_var);
1760 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1761 mono_mb_emit_stloc (mb, 0);
1763 /* dst is already set */
1765 /* Do the conversion */
1766 emit_struct_conv (mb, eklass, FALSE);
1769 mono_mb_emit_add_to_local (mb, index_var, 1);
1771 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1773 mono_mb_patch_branch (mb, label3);
1775 /* restore the old src pointer */
1776 mono_mb_emit_ldloc (mb, src_var);
1777 mono_mb_emit_stloc (mb, 0);
1778 /* restore the old dst pointer */
1779 mono_mb_emit_ldloc (mb, dst_var);
1780 mono_mb_emit_stloc (mb, 1);
1783 mono_mb_patch_branch (mb, pos);
1786 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1789 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1791 mono_mb_emit_ldloc (mb, 1);
1792 mono_mb_emit_ldloc (mb, 0);
1793 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1794 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1795 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1796 mono_mb_patch_short_branch (mb, pos);
1799 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1800 int src_var, dst_var;
1802 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1803 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1805 mono_mb_emit_ldloc (mb, 0);
1806 mono_mb_emit_byte (mb, CEE_LDIND_I);
1807 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1809 /* save the old src pointer */
1810 mono_mb_emit_ldloc (mb, 0);
1811 mono_mb_emit_stloc (mb, src_var);
1812 /* save the old dst pointer */
1813 mono_mb_emit_ldloc (mb, 1);
1814 mono_mb_emit_stloc (mb, dst_var);
1816 /* src = pointer to object data */
1817 mono_mb_emit_ldloc (mb, 0);
1818 mono_mb_emit_byte (mb, CEE_LDIND_I);
1819 mono_mb_emit_icon (mb, sizeof (MonoObject));
1820 mono_mb_emit_byte (mb, CEE_ADD);
1821 mono_mb_emit_stloc (mb, 0);
1823 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1825 /* restore the old src pointer */
1826 mono_mb_emit_ldloc (mb, src_var);
1827 mono_mb_emit_stloc (mb, 0);
1828 /* restore the old dst pointer */
1829 mono_mb_emit_ldloc (mb, dst_var);
1830 mono_mb_emit_stloc (mb, 1);
1832 mono_mb_patch_branch (mb, pos);
1837 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1838 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1839 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1840 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1842 #endif /* DISABLE_COM */
1844 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1847 mono_mb_emit_ldloc (mb, 0);
1848 mono_mb_emit_byte (mb, CEE_LDIND_I);
1849 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1850 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1851 mono_mb_patch_branch (mb, pos);
1853 /* Pull the handle field from SafeHandle */
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_I);
1857 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1858 mono_mb_emit_byte (mb, CEE_LDIND_I);
1859 mono_mb_emit_byte (mb, CEE_STIND_I);
1863 case MONO_MARSHAL_CONV_HANDLEREF: {
1864 mono_mb_emit_ldloc (mb, 1);
1865 mono_mb_emit_ldloc (mb, 0);
1866 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1867 mono_mb_emit_byte (mb, CEE_ADD);
1868 mono_mb_emit_byte (mb, CEE_LDIND_I);
1869 mono_mb_emit_byte (mb, CEE_STIND_I);
1874 g_error ("marshalling conversion %d not implemented", conv);
1880 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1881 MonoMarshalNative string_encoding)
1883 MonoMarshalType *info;
1887 emit_struct_conv(mb, klass->parent, to_object);
1889 info = mono_marshal_load_type_info (klass);
1891 if (info->native_size == 0)
1894 if (klass->blittable) {
1895 int msize = mono_class_value_size (klass, NULL);
1896 g_assert (msize == info->native_size);
1897 mono_mb_emit_ldloc (mb, 1);
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_icon (mb, msize);
1900 mono_mb_emit_byte (mb, CEE_PREFIX1);
1901 mono_mb_emit_byte (mb, CEE_CPBLK);
1903 mono_mb_emit_add_to_local (mb, 0, msize);
1904 mono_mb_emit_add_to_local (mb, 1, msize);
1908 if (klass != mono_class_try_get_safehandle_class ()) {
1909 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1910 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1911 mono_type_full_name (&klass->byval_arg));
1912 mono_mb_emit_exception_marshal_directive (mb, msg);
1917 for (i = 0; i < info->num_fields; i++) {
1918 MonoMarshalNative ntype;
1919 MonoMarshalConv conv;
1920 MonoType *ftype = info->fields [i].field->type;
1923 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1925 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1928 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1931 msize = klass->instance_size - info->fields [i].field->offset;
1932 usize = info->native_size - info->fields [i].offset;
1934 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1935 usize = info->fields [i + 1].offset - info->fields [i].offset;
1938 if (klass != mono_class_try_get_safehandle_class ()){
1940 * FIXME: Should really check for usize==0 and msize>0, but we apply
1941 * the layout to the managed structure as well.
1944 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1945 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1946 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1947 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1948 "reference field at the same offset as another field.",
1949 mono_type_full_name (&klass->byval_arg));
1954 case MONO_MARSHAL_CONV_NONE: {
1957 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
1958 g_assert (!ftype->byref);
1959 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
1960 mono_mb_emit_ldloc (mb, 1);
1961 mono_mb_emit_ldloc (mb, 0);
1962 mono_mb_emit_byte (mb, CEE_LDIND_I);
1963 mono_mb_emit_byte (mb, CEE_STIND_I);
1974 case MONO_TYPE_BOOLEAN:
1977 case MONO_TYPE_CHAR:
1983 mono_mb_emit_ldloc (mb, 1);
1984 mono_mb_emit_ldloc (mb, 0);
1985 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1987 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1988 mono_mb_emit_byte (mb, CEE_STIND_I2);
1990 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1991 mono_mb_emit_byte (mb, CEE_STIND_I1);
1994 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1995 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1998 case MONO_TYPE_VALUETYPE: {
1999 int src_var, dst_var;
2001 if (ftype->data.klass->enumtype) {
2002 ftype = mono_class_enum_basetype (ftype->data.klass);
2006 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2007 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2009 /* save the old src pointer */
2010 mono_mb_emit_ldloc (mb, 0);
2011 mono_mb_emit_stloc (mb, src_var);
2012 /* save the old dst pointer */
2013 mono_mb_emit_ldloc (mb, 1);
2014 mono_mb_emit_stloc (mb, dst_var);
2016 emit_struct_conv (mb, ftype->data.klass, to_object);
2018 /* restore the old src pointer */
2019 mono_mb_emit_ldloc (mb, src_var);
2020 mono_mb_emit_stloc (mb, 0);
2021 /* restore the old dst pointer */
2022 mono_mb_emit_ldloc (mb, dst_var);
2023 mono_mb_emit_stloc (mb, 1);
2026 case MONO_TYPE_OBJECT: {
2029 static MonoMethod *variant_clear = NULL;
2030 static MonoMethod *get_object_for_native_variant = NULL;
2033 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2034 if (!get_object_for_native_variant)
2035 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2036 mono_mb_emit_ldloc (mb, 1);
2037 mono_mb_emit_ldloc (mb, 0);
2038 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2039 mono_mb_emit_byte (mb, CEE_STIND_REF);
2041 mono_mb_emit_ldloc (mb, 0);
2042 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2045 static MonoMethod *get_native_variant_for_object = NULL;
2047 if (!get_native_variant_for_object)
2048 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2050 mono_mb_emit_ldloc (mb, 0);
2051 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2052 mono_mb_emit_ldloc (mb, 1);
2053 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2056 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2057 mono_mb_emit_exception_marshal_directive (mb, msg);
2063 g_warning ("marshaling type %02x not implemented", ftype->type);
2064 g_assert_not_reached ();
2069 int src_var, dst_var;
2071 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2072 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2074 /* save the old src pointer */
2075 mono_mb_emit_ldloc (mb, 0);
2076 mono_mb_emit_stloc (mb, src_var);
2077 /* save the old dst pointer */
2078 mono_mb_emit_ldloc (mb, 1);
2079 mono_mb_emit_stloc (mb, dst_var);
2082 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2084 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2086 /* restore the old src pointer */
2087 mono_mb_emit_ldloc (mb, src_var);
2088 mono_mb_emit_stloc (mb, 0);
2089 /* restore the old dst pointer */
2090 mono_mb_emit_ldloc (mb, dst_var);
2091 mono_mb_emit_stloc (mb, 1);
2096 mono_mb_emit_add_to_local (mb, 0, usize);
2097 mono_mb_emit_add_to_local (mb, 1, msize);
2099 mono_mb_emit_add_to_local (mb, 0, msize);
2100 mono_mb_emit_add_to_local (mb, 1, usize);
2106 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2108 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2112 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2114 /* Call DestroyStructure */
2115 /* FIXME: Only do this if needed */
2116 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2117 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2118 mono_mb_emit_ldloc (mb, struct_var);
2119 mono_mb_emit_icall (mb, mono_struct_delete_old);
2123 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2125 int pos_noabort, pos_noex;
2127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2128 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2129 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2130 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2132 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2133 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2135 mono_mb_emit_icall (mb, checkpoint_func);
2136 /* Throw the exception returned by the checkpoint function, if any */
2137 mono_mb_emit_byte (mb, CEE_DUP);
2138 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2139 mono_mb_emit_byte (mb, CEE_THROW);
2140 mono_mb_patch_branch (mb, pos_noex);
2141 mono_mb_emit_byte (mb, CEE_POP);
2143 mono_mb_patch_branch (mb, pos_noabort);
2147 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2149 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2152 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2156 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2158 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2162 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2164 emit_thread_interrupt_checkpoint (mb);
2168 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2170 emit_thread_force_interrupt_checkpoint (mb);
2173 #endif /* DISABLE_JIT */
2175 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2176 static MonoAsyncResult *
2177 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2180 MonoMulticastDelegate *mcast_delegate;
2184 g_assert (delegate);
2185 mcast_delegate = (MonoMulticastDelegate *) delegate;
2186 if (mcast_delegate->delegates != NULL) {
2187 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2191 #ifndef DISABLE_REMOTING
2192 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2193 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2194 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2195 /* If the target is a proxy, make a direct call. Is proxy's work
2196 // to make the call asynchronous.
2198 MonoMethodMessage *msg;
2199 MonoDelegate *async_callback;
2201 MonoAsyncResult *ares;
2203 MonoArray *out_args;
2204 method = delegate->method;
2206 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2207 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2208 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2209 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2210 MONO_OBJECT_SETREF (msg, async_result, ares);
2211 msg->call_type = CallType_BeginInvoke;
2214 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2215 if (!mono_error_ok (&error)) {
2216 mono_error_set_pending_exception (&error);
2220 mono_set_pending_exception ((MonoException *) exc);
2226 klass = delegate->object.vtable->klass;
2228 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2230 method = mono_get_delegate_invoke (klass);
2233 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2234 mono_error_set_pending_exception (&error);
2241 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2243 int i, params_var, tmp_var;
2245 /* allocate local (pointer) *params[] */
2246 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2247 /* allocate local (pointer) tmp */
2248 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2250 /* alloate space on stack to store an array of pointers to the arguments */
2251 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2252 mono_mb_emit_byte (mb, CEE_PREFIX1);
2253 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2254 mono_mb_emit_stloc (mb, params_var);
2257 mono_mb_emit_ldloc (mb, params_var);
2258 mono_mb_emit_stloc (mb, tmp_var);
2260 if (save_this && sig->hasthis) {
2261 mono_mb_emit_ldloc (mb, tmp_var);
2262 mono_mb_emit_ldarg_addr (mb, 0);
2263 mono_mb_emit_byte (mb, CEE_STIND_I);
2264 /* tmp = tmp + sizeof (gpointer) */
2265 if (sig->param_count)
2266 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2270 for (i = 0; i < sig->param_count; i++) {
2271 mono_mb_emit_ldloc (mb, tmp_var);
2272 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2273 mono_mb_emit_byte (mb, CEE_STIND_I);
2274 /* tmp = tmp + sizeof (gpointer) */
2275 if (i < (sig->param_count - 1))
2276 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2282 #endif /* DISABLE_JIT */
2285 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2289 GString *res = g_string_new ("");
2292 g_string_append (res, prefix);
2293 g_string_append_c (res, '_');
2296 mono_type_get_desc (res, sig->ret, FALSE);
2299 g_string_append (res, "__this__");
2301 for (i = 0; i < sig->param_count; ++i) {
2302 g_string_append_c (res, '_');
2303 mono_type_get_desc (res, sig->params [i], FALSE);
2306 g_string_free (res, FALSE);
2311 * mono_marshal_get_string_encoding:
2313 * Return the string encoding which should be used for a given parameter.
2315 static MonoMarshalNative
2316 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2318 /* First try the parameter marshal info */
2320 if (spec->native == MONO_NATIVE_LPARRAY) {
2321 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2322 return spec->data.array_data.elem_type;
2325 return spec->native;
2329 return MONO_NATIVE_LPSTR;
2331 /* Then try the method level marshal info */
2332 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2333 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2334 return MONO_NATIVE_LPSTR;
2335 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2336 return MONO_NATIVE_LPWSTR;
2337 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2339 return MONO_NATIVE_LPWSTR;
2341 return MONO_NATIVE_LPSTR;
2344 return MONO_NATIVE_LPSTR;
2348 static MonoMarshalConv
2349 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2351 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2354 case MONO_NATIVE_LPWSTR:
2355 return MONO_MARSHAL_CONV_STR_LPWSTR;
2356 case MONO_NATIVE_LPSTR:
2357 case MONO_NATIVE_VBBYREFSTR:
2358 return MONO_MARSHAL_CONV_STR_LPSTR;
2359 case MONO_NATIVE_LPTSTR:
2360 return MONO_MARSHAL_CONV_STR_LPTSTR;
2361 case MONO_NATIVE_BSTR:
2362 return MONO_MARSHAL_CONV_STR_BSTR;
2364 return MONO_MARSHAL_CONV_INVALID;
2368 static MonoMarshalConv
2369 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2371 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2374 case MONO_NATIVE_LPWSTR:
2375 return MONO_MARSHAL_CONV_SB_LPWSTR;
2377 case MONO_NATIVE_LPSTR:
2378 return MONO_MARSHAL_CONV_SB_LPSTR;
2380 case MONO_NATIVE_LPTSTR:
2381 return MONO_MARSHAL_CONV_SB_LPTSTR;
2384 return MONO_MARSHAL_CONV_INVALID;
2388 static MonoMarshalConv
2389 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2391 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2396 case MONO_NATIVE_LPWSTR:
2398 return MONO_MARSHAL_CONV_LPWSTR_STR;
2399 case MONO_NATIVE_LPSTR:
2400 case MONO_NATIVE_VBBYREFSTR:
2401 return MONO_MARSHAL_CONV_LPSTR_STR;
2402 case MONO_NATIVE_LPTSTR:
2403 return MONO_MARSHAL_CONV_LPTSTR_STR;
2404 case MONO_NATIVE_BSTR:
2405 return MONO_MARSHAL_CONV_BSTR_STR;
2407 return MONO_MARSHAL_CONV_INVALID;
2411 static MonoMarshalConv
2412 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2414 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2419 case MONO_NATIVE_LPWSTR:
2421 * mono_string_builder_to_utf16 does not allocate a
2422 * new buffer, so no need to free it.
2425 return MONO_MARSHAL_CONV_LPWSTR_SB;
2426 case MONO_NATIVE_LPSTR:
2427 return MONO_MARSHAL_CONV_LPSTR_SB;
2429 case MONO_NATIVE_LPTSTR:
2430 return MONO_MARSHAL_CONV_LPTSTR_SB;
2433 return MONO_MARSHAL_CONV_INVALID;
2438 * Return whenever a field of a native structure or an array member needs to
2442 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2444 MonoMarshalNative encoding;
2447 case MONO_TYPE_VALUETYPE:
2448 /* FIXME: Optimize this */
2450 case MONO_TYPE_OBJECT:
2451 case MONO_TYPE_CLASS:
2452 if (t->data.klass == mono_defaults.stringbuilder_class) {
2454 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2458 case MONO_TYPE_STRING:
2459 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2460 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2467 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2470 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2473 mono_marshal_lock ();
2476 g_hash_table_new (hash_func, equal_func);
2477 mono_memory_barrier ();
2480 mono_marshal_unlock ();
2486 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2488 return get_cache (var, hash_func, equal_func);
2492 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2496 mono_marshal_lock ();
2497 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2498 mono_marshal_unlock ();
2505 * Create a MonoMethod from MB, set INFO as wrapper info.
2508 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2509 int max_stack, WrapperInfo *info)
2513 res = mono_mb_create_method (mb, sig, max_stack);
2515 mono_marshal_set_wrapper_info (res, info);
2519 /* Create the method from the builder and place it in the cache */
2521 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2522 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2523 int max_stack, WrapperInfo *info, gboolean *out_found)
2530 mono_marshal_lock ();
2531 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2532 mono_marshal_unlock ();
2535 newm = mono_mb_create_method (mb, sig, max_stack);
2536 mono_marshal_lock ();
2537 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2540 g_hash_table_insert (cache, key, res);
2541 mono_marshal_set_wrapper_info (res, info);
2542 mono_marshal_unlock ();
2546 mono_marshal_unlock ();
2547 mono_free_method (newm);
2555 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2556 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2559 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2563 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2566 int wrapper_type = wrapper->wrapper_type;
2569 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2572 info = mono_marshal_get_wrapper_info (wrapper);
2574 switch (wrapper_type) {
2575 case MONO_WRAPPER_REMOTING_INVOKE:
2576 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2577 case MONO_WRAPPER_XDOMAIN_INVOKE:
2578 m = info->d.remoting.method;
2579 if (wrapper->is_inflated) {
2583 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2584 * contains an uninflated method.
2586 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2587 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2591 case MONO_WRAPPER_SYNCHRONIZED:
2592 m = info->d.synchronized.method;
2593 if (wrapper->is_inflated) {
2596 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2597 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2601 case MONO_WRAPPER_UNBOX:
2602 return info->d.unbox.method;
2603 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2604 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2605 return info->d.managed_to_native.method;
2608 case MONO_WRAPPER_RUNTIME_INVOKE:
2609 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2610 return info->d.runtime_invoke.method;
2619 * mono_marshal_get_wrapper_info:
2621 * Retrieve the WrapperInfo structure associated with WRAPPER.
2624 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2626 g_assert (wrapper->wrapper_type);
2628 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2632 * mono_marshal_set_wrapper_info:
2634 * Set the WrapperInfo structure associated with the wrapper
2635 * method METHOD to INFO.
2638 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2642 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2645 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2650 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2654 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2655 info->subtype = subtype;
2660 * get_wrapper_target_class:
2662 * Return the class where a wrapper method should be placed.
2665 get_wrapper_target_class (MonoImage *image)
2672 * - can't put all wrappers into an mscorlib class, because they reference
2673 * metadata (signature) so they should be put into the same image as the
2674 * method they wrap, so they are unloaded together.
2675 * - putting them into a class with a type initalizer could cause the
2676 * initializer to be executed which can be a problem if the wrappers are
2678 * - putting them into an inflated class can cause problems if the the
2679 * class is deleted because it references an image which is unloaded.
2680 * To avoid these problems, we put the wrappers into the <Module> class of
2683 if (image_is_dynamic (image)) {
2684 klass = ((MonoDynamicImage*)image)->wrappers_type;
2686 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2687 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2695 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2696 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2700 * check_generic_wrapper_cache:
2702 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2703 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2704 * generic method definition.
2707 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2710 MonoMethod *inst, *def;
2711 MonoGenericContext *ctx;
2713 g_assert (orig_method->is_inflated);
2714 ctx = mono_method_get_context (orig_method);
2717 * Look for the instance
2719 res = mono_marshal_find_in_cache (cache, key);
2724 * Look for the definition
2726 def = mono_marshal_find_in_cache (cache, def_key);
2729 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2730 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2732 mono_memory_barrier ();
2733 mono_marshal_lock ();
2734 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2736 g_hash_table_insert (cache, key, inst);
2739 mono_marshal_unlock ();
2746 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2749 MonoMethod *inst, *res;
2752 * We use the same cache for the generic definition and the instances.
2754 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2755 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2756 mono_memory_barrier ();
2757 mono_marshal_lock ();
2758 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2760 g_hash_table_insert (cache, key, inst);
2763 mono_marshal_unlock ();
2768 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2772 MonoMethod *inst, *def;
2775 * Look for the instance
2777 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2782 * Look for the definition
2784 def = mono_marshal_find_in_cache (cache, def_method->klass);
2786 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2787 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2790 mono_memory_barrier ();
2791 mono_marshal_lock ();
2792 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2794 g_hash_table_insert (cache, orig_method->klass, inst);
2797 mono_marshal_unlock ();
2804 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2807 MonoMethod *inst, *res;
2810 * We use the same cache for the generic definition and the instances.
2812 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2813 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2815 mono_memory_barrier ();
2816 mono_marshal_lock ();
2817 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2819 g_hash_table_insert (cache, orig_method->klass, inst);
2822 mono_marshal_unlock ();
2827 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2829 MonoMethodSignature *sig;
2830 MonoMethodBuilder *mb;
2835 MonoGenericContext *ctx = NULL;
2836 MonoMethod *orig_method = NULL;
2838 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2839 !strcmp (method->name, "BeginInvoke"));
2842 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2844 if (method->is_inflated) {
2845 orig_method = method;
2846 ctx = &((MonoMethodInflated*)method)->context;
2847 method = ((MonoMethodInflated*)method)->declaring;
2850 sig = mono_signature_no_pinvoke (method);
2856 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2857 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2861 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2862 (GHashFunc)mono_signature_hash,
2863 (GCompareFunc)mono_metadata_signature_equal);
2864 if ((res = mono_marshal_find_in_cache (cache, sig)))
2868 g_assert (sig->hasthis);
2870 name = mono_signature_to_name (sig, "begin_invoke");
2872 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2874 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2878 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2880 mono_mb_emit_ldarg (mb, 0);
2881 mono_mb_emit_ldloc (mb, params_var);
2882 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2883 mono_mb_emit_byte (mb, CEE_RET);
2888 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2889 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2891 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2898 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2900 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2903 MonoDomain *domain = mono_domain_get ();
2904 MonoAsyncResult *ares;
2905 MonoMethod *method = NULL;
2906 MonoMethodSignature *sig;
2907 MonoMethodMessage *msg;
2908 MonoObject *res, *exc;
2909 MonoArray *out_args;
2912 g_assert (delegate);
2914 if (!delegate->method_info) {
2915 g_assert (delegate->method);
2916 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2917 if (!mono_error_ok (&error)) {
2918 mono_error_set_pending_exception (&error);
2921 MONO_OBJECT_SETREF (delegate, method_info, rm);
2924 if (!delegate->method_info || !delegate->method_info->method)
2925 g_assert_not_reached ();
2927 klass = delegate->object.vtable->klass;
2929 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2930 g_assert (method != NULL);
2932 sig = mono_signature_no_pinvoke (method);
2934 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2936 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2938 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."));
2942 if (ares->async_delegate != (MonoObject*)delegate) {
2943 mono_set_pending_exception (mono_get_exception_invalid_operation (
2944 "The IAsyncResult object provided does not match this delegate."));
2948 #ifndef DISABLE_REMOTING
2949 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2950 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2951 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2952 if (!mono_error_ok (&error)) {
2953 mono_error_set_pending_exception (&error);
2956 mono_message_init (domain, msg, delegate->method_info, NULL);
2957 msg->call_type = CallType_EndInvoke;
2958 MONO_OBJECT_SETREF (msg, async_result, ares);
2959 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2960 if (!mono_error_ok (&error)) {
2961 mono_error_set_pending_exception (&error);
2967 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2971 if (((MonoException*)exc)->stack_trace) {
2972 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2974 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2976 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2979 mono_set_pending_exception ((MonoException*)exc);
2982 mono_method_return_message_restore (method, params, out_args, &error);
2983 mono_error_set_pending_exception (&error);
2990 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2992 MonoType *t = mono_type_get_underlying_type (return_type);
2994 if (return_type->byref)
2995 return_type = &mono_defaults.int_class->byval_arg;
2998 case MONO_TYPE_VOID:
2999 g_assert_not_reached ();
3002 case MONO_TYPE_STRING:
3003 case MONO_TYPE_CLASS:
3004 case MONO_TYPE_OBJECT:
3005 case MONO_TYPE_ARRAY:
3006 case MONO_TYPE_SZARRAY:
3010 case MONO_TYPE_BOOLEAN:
3013 case MONO_TYPE_CHAR:
3023 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3024 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3026 case MONO_TYPE_GENERICINST:
3027 if (!mono_type_generic_inst_is_valuetype (t))
3030 case MONO_TYPE_VALUETYPE: {
3031 MonoClass *klass = mono_class_from_mono_type (return_type);
3032 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3033 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3037 case MONO_TYPE_MVAR: {
3038 MonoClass *klass = mono_class_from_mono_type (return_type);
3039 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3043 g_warning ("type 0x%x not handled", return_type->type);
3044 g_assert_not_reached ();
3047 mono_mb_emit_byte (mb, CEE_RET);
3050 #endif /* DISABLE_JIT */
3053 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3055 MonoMethodSignature *sig;
3056 MonoMethodBuilder *mb;
3061 MonoGenericContext *ctx = NULL;
3062 MonoMethod *orig_method = NULL;
3064 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3065 !strcmp (method->name, "EndInvoke"));
3068 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3070 if (method->is_inflated) {
3071 orig_method = method;
3072 ctx = &((MonoMethodInflated*)method)->context;
3073 method = ((MonoMethodInflated*)method)->declaring;
3076 sig = mono_signature_no_pinvoke (method);
3082 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3083 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3087 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3088 (GHashFunc)mono_signature_hash,
3089 (GCompareFunc)mono_metadata_signature_equal);
3090 if ((res = mono_marshal_find_in_cache (cache, sig)))
3094 g_assert (sig->hasthis);
3096 name = mono_signature_to_name (sig, "end_invoke");
3098 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3100 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3104 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3106 mono_mb_emit_ldarg (mb, 0);
3107 mono_mb_emit_ldloc (mb, params_var);
3108 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3110 if (sig->ret->type == MONO_TYPE_VOID) {
3111 mono_mb_emit_byte (mb, CEE_POP);
3112 mono_mb_emit_byte (mb, CEE_RET);
3114 mono_mb_emit_restore_result (mb, sig->ret);
3119 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3120 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3122 res = mono_mb_create_and_cache (cache, sig,
3123 mb, sig, sig->param_count + 16);
3132 MonoMethodSignature *sig;
3134 } SignaturePointerPair;
3137 signature_pointer_pair_hash (gconstpointer data)
3139 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3141 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3145 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3147 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3148 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3152 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3154 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3156 return pair->pointer == user_data;
3160 free_signature_pointer_pair (SignaturePointerPair *pair)
3166 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3168 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3170 MonoMethodBuilder *mb;
3173 gpointer cache_key = NULL;
3174 SignaturePointerPair key;
3175 SignaturePointerPair *new_key;
3176 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3177 int pos0, pos1, pos2;
3179 MonoClass *target_class = NULL;
3180 gboolean closed_over_null = FALSE;
3181 MonoGenericContext *ctx = NULL;
3182 MonoGenericContainer *container = NULL;
3183 MonoMethod *orig_method = NULL;
3185 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3189 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3190 !strcmp (method->name, "Invoke"));
3192 invoke_sig = sig = mono_signature_no_pinvoke (method);
3195 * If the delegate target is null, and the target method is not static, a virtual
3196 * call is made to that method with the first delegate argument as this. This is
3197 * a non-documented .NET feature.
3200 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3201 if (target_method->is_inflated) {
3203 MonoType *target_type;
3205 g_assert (method->signature->hasthis);
3206 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3207 mono_method_get_context (method), &error);
3208 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3209 target_class = mono_class_from_mono_type (target_type);
3211 target_class = target_method->klass;
3214 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3217 if (static_method_with_first_arg_bound) {
3218 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3219 g_assert (!callvirt);
3220 invoke_sig = mono_method_signature (target_method);
3224 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3226 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3227 orig_method = method;
3228 ctx = &((MonoMethodInflated*)method)->context;
3229 method = ((MonoMethodInflated*)method)->declaring;
3231 container = mono_method_get_generic_container (method);
3233 container = method->klass->generic_container;
3234 g_assert (container);
3236 invoke_sig = sig = mono_signature_no_pinvoke (method);
3243 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3244 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3247 cache_key = method->klass;
3248 } else if (static_method_with_first_arg_bound) {
3249 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3250 (GHashFunc)mono_signature_hash,
3251 (GCompareFunc)mono_metadata_signature_equal);
3253 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3255 res = mono_marshal_find_in_cache (cache, invoke_sig);
3258 cache_key = invoke_sig;
3259 } else if (callvirt) {
3260 GHashTable **cache_ptr;
3262 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3264 /* We need to cache the signature+method pair */
3265 mono_marshal_lock ();
3267 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3269 key.sig = invoke_sig;
3270 key.pointer = target_method;
3271 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3272 mono_marshal_unlock ();
3276 // Inflated methods should not be in this cache because it's not stored on the imageset.
3277 g_assert (!method->is_inflated);
3278 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3279 (GHashFunc)mono_signature_hash,
3280 (GCompareFunc)mono_metadata_signature_equal);
3281 res = mono_marshal_find_in_cache (cache, sig);
3287 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3288 static_sig->hasthis = 0;
3289 if (!static_method_with_first_arg_bound)
3290 invoke_sig = static_sig;
3292 if (static_method_with_first_arg_bound)
3293 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3294 else if (closed_over_null)
3295 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3297 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3299 name = mono_signature_to_name (invoke_sig, "invoke");
3301 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3303 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3307 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3309 /* allocate local 0 (object) */
3310 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3311 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3312 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3313 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3314 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3317 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3319 g_assert (sig->hasthis);
3322 * {type: sig->ret} res;
3323 * if (delegates == null) {
3324 * return this.<target> ( args .. );
3326 * int i = 0, len = this.delegates.Length;
3328 * res = this.delegates [i].Invoke ( args .. );
3329 * } while (++i < len);
3334 /* this wrapper can be used in unmanaged-managed transitions */
3335 emit_thread_interrupt_checkpoint (mb);
3337 /* delegates = this.delegates */
3338 mono_mb_emit_ldarg (mb, 0);
3339 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3340 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3341 mono_mb_emit_stloc (mb, local_delegates);
3344 /* if (delegates == null) */
3345 mono_mb_emit_ldloc (mb, local_delegates);
3346 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3348 /* return target.<target_method|method_ptr> ( args .. ); */
3350 /* target = d.target; */
3351 mono_mb_emit_ldarg (mb, 0);
3352 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3353 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3354 mono_mb_emit_stloc (mb, local_target);
3356 /*static methods with bound first arg can have null target and still be bound*/
3357 if (!static_method_with_first_arg_bound) {
3358 /* if target != null */
3359 mono_mb_emit_ldloc (mb, local_target);
3360 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3362 /* then call this->method_ptr nonstatic */
3365 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3367 mono_mb_emit_ldloc (mb, local_target);
3368 for (i = 0; i < sig->param_count; ++i)
3369 mono_mb_emit_ldarg (mb, i + 1);
3370 mono_mb_emit_ldarg (mb, 0);
3371 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3372 mono_mb_emit_byte (mb, CEE_LDIND_I);
3373 mono_mb_emit_ldarg (mb, 0);
3374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3375 mono_mb_emit_byte (mb, CEE_LDIND_I);
3376 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3377 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3378 mono_mb_emit_byte (mb, CEE_RET);
3381 /* else [target == null] call this->method_ptr static */
3382 mono_mb_patch_branch (mb, pos0);
3386 if (!closed_over_null) {
3387 if (target_class->valuetype) {
3388 mono_mb_emit_ldarg (mb, 1);
3389 for (i = 1; i < sig->param_count; ++i)
3390 mono_mb_emit_ldarg (mb, i + 1);
3391 mono_mb_emit_op (mb, CEE_CALL, target_method);
3393 mono_mb_emit_ldarg (mb, 1);
3394 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3395 for (i = 1; i < sig->param_count; ++i)
3396 mono_mb_emit_ldarg (mb, i + 1);
3397 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3400 mono_mb_emit_byte (mb, CEE_LDNULL);
3401 for (i = 0; i < sig->param_count; ++i)
3402 mono_mb_emit_ldarg (mb, i + 1);
3403 mono_mb_emit_op (mb, CEE_CALL, target_method);
3406 if (static_method_with_first_arg_bound) {
3407 mono_mb_emit_ldloc (mb, local_target);
3408 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3409 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3411 for (i = 0; i < sig->param_count; ++i)
3412 mono_mb_emit_ldarg (mb, i + 1);
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3415 mono_mb_emit_byte (mb, CEE_LDIND_I);
3416 mono_mb_emit_ldarg (mb, 0);
3417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3418 mono_mb_emit_byte (mb, CEE_LDIND_I);
3419 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3420 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3423 mono_mb_emit_byte (mb, CEE_RET);
3425 /* else [delegates != null] */
3426 mono_mb_patch_branch (mb, pos2);
3428 /* len = delegates.Length; */
3429 mono_mb_emit_ldloc (mb, local_delegates);
3430 mono_mb_emit_byte (mb, CEE_LDLEN);
3431 mono_mb_emit_byte (mb, CEE_CONV_I4);
3432 mono_mb_emit_stloc (mb, local_len);
3435 mono_mb_emit_icon (mb, 0);
3436 mono_mb_emit_stloc (mb, local_i);
3438 pos1 = mono_mb_get_label (mb);
3440 /* d = delegates [i]; */
3441 mono_mb_emit_ldloc (mb, local_delegates);
3442 mono_mb_emit_ldloc (mb, local_i);
3443 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3444 mono_mb_emit_stloc (mb, local_d);
3446 /* res = d.Invoke ( args .. ); */
3447 mono_mb_emit_ldloc (mb, local_d);
3448 for (i = 0; i < sig->param_count; i++)
3449 mono_mb_emit_ldarg (mb, i + 1);
3451 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3454 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3455 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3458 mono_mb_emit_stloc (mb, local_res);
3461 mono_mb_emit_add_to_local (mb, local_i, 1);
3464 mono_mb_emit_ldloc (mb, local_i);
3465 mono_mb_emit_ldloc (mb, local_len);
3466 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3470 mono_mb_emit_ldloc (mb, local_res);
3471 mono_mb_emit_byte (mb, CEE_RET);
3473 mb->skip_visibility = 1;
3474 #endif /* DISABLE_JIT */
3476 info = mono_wrapper_info_create (mb, subtype);
3481 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3482 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3483 } else if (callvirt) {
3484 new_key = g_new0 (SignaturePointerPair, 1);
3487 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3491 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3495 /* mono_method_print_code (res); */
3501 * the returned method invokes all methods in a multicast delegate.
3504 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3506 gboolean callvirt = FALSE;
3507 gboolean static_method_with_first_arg_bound = FALSE;
3508 MonoMethod *target_method = NULL;
3509 MonoMethodSignature *sig;
3511 sig = mono_signature_no_pinvoke (method);
3513 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3515 target_method = del->method;
3518 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3519 static_method_with_first_arg_bound = TRUE;
3520 target_method = del->method;
3523 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3527 MonoMethodSignature *ctor_sig;
3528 MonoMethodSignature *sig;
3531 /* protected by the marshal lock, contains CtorSigPair pointers */
3532 static GSList *strsig_list = NULL;
3534 static MonoMethodSignature *
3535 lookup_string_ctor_signature (MonoMethodSignature *sig)
3537 MonoMethodSignature *callsig;
3541 mono_marshal_lock ();
3543 for (item = strsig_list; item; item = item->next) {
3544 cs = (CtorSigPair *)item->data;
3545 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3546 * because it is lock-free.
3548 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3553 mono_marshal_unlock ();
3557 static MonoMethodSignature *
3558 add_string_ctor_signature (MonoMethod *method)
3560 MonoMethodSignature *callsig;
3563 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3564 callsig->ret = &mono_defaults.string_class->byval_arg;
3565 cs = g_new (CtorSigPair, 1);
3567 cs->ctor_sig = mono_method_signature (method);
3569 mono_marshal_lock ();
3570 strsig_list = g_slist_prepend (strsig_list, cs);
3571 mono_marshal_unlock ();
3576 * mono_marshal_get_string_ctor_signature:
3578 * Return the modified signature used by string ctors (they return the newly created
3581 MonoMethodSignature*
3582 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3584 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3586 sig = add_string_ctor_signature (method);
3592 get_runtime_invoke_type (MonoType *t, gboolean ret)
3595 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3597 /* Can't share this with 'I' as that needs another indirection */
3598 return &mono_defaults.int_class->this_arg;
3601 if (MONO_TYPE_IS_REFERENCE (t))
3602 return &mono_defaults.object_class->byval_arg;
3605 /* The result needs to be boxed */
3610 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3613 return &mono_defaults.sbyte_class->byval_arg;
3615 return &mono_defaults.int16_class->byval_arg;
3617 return &mono_defaults.int32_class->byval_arg;
3620 return &mono_defaults.int64_class->byval_arg;
3621 case MONO_TYPE_BOOLEAN:
3622 return &mono_defaults.byte_class->byval_arg;
3623 case MONO_TYPE_CHAR:
3624 return &mono_defaults.uint16_class->byval_arg;
3626 return &mono_defaults.int_class->byval_arg;
3627 case MONO_TYPE_VALUETYPE:
3628 if (t->data.klass->enumtype) {
3629 t = mono_class_enum_basetype (t->data.klass);
3639 * mono_marshal_get_runtime_invoke_sig:
3641 * Return a common signature used for sharing runtime invoke wrappers.
3643 static MonoMethodSignature*
3644 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3646 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3649 res->generic_param_count = 0;
3650 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3651 for (i = 0; i < res->param_count; ++i)
3652 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3658 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3660 /* Can't share wrappers which return a vtype since it needs to be boxed */
3661 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))
3664 return mono_metadata_signature_equal (sig1, sig2);
3672 * Emit the call to the wrapper method from a runtime invoke wrapper.
3675 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3676 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3678 gboolean virtual_, gboolean need_direct_wrapper)
3680 static MonoString *string_dummy = NULL;
3682 int *tmp_nullable_locals;
3683 gboolean void_ret = FALSE;
3684 gboolean string_ctor = method && method->string_ctor;
3686 /* to make it work with our special string constructors */
3687 if (!string_dummy) {
3688 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3689 string_dummy = mono_string_new_wrapper ("dummy");
3693 g_assert (sig->hasthis);
3694 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3699 if (mono_gc_is_moving ()) {
3700 mono_mb_emit_ptr (mb, &string_dummy);
3701 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3703 mono_mb_emit_ptr (mb, string_dummy);
3706 mono_mb_emit_ldarg (mb, 0);
3710 tmp_nullable_locals = g_new0 (int, sig->param_count);
3712 for (i = 0; i < sig->param_count; i++) {
3713 MonoType *t = sig->params [i];
3716 mono_mb_emit_ldarg (mb, 1);
3718 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3719 mono_mb_emit_byte (mb, CEE_ADD);
3723 mono_mb_emit_byte (mb, CEE_LDIND_I);
3724 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3725 * So to make this work we unbox it to a local variablee and push a reference to that.
3727 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3728 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3730 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3731 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3732 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3737 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3738 type = sig->params [i]->type;
3742 case MONO_TYPE_BOOLEAN:
3746 case MONO_TYPE_CHAR:
3755 mono_mb_emit_byte (mb, CEE_LDIND_I);
3756 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3758 case MONO_TYPE_STRING:
3759 case MONO_TYPE_CLASS:
3760 case MONO_TYPE_ARRAY:
3762 case MONO_TYPE_SZARRAY:
3763 case MONO_TYPE_OBJECT:
3764 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3766 case MONO_TYPE_GENERICINST:
3767 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3768 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3773 case MONO_TYPE_VALUETYPE:
3774 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3775 type = mono_class_enum_basetype (t->data.klass)->type;
3778 mono_mb_emit_byte (mb, CEE_LDIND_I);
3779 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3780 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3781 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3782 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3784 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3788 g_assert_not_reached ();
3793 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3794 } else if (need_direct_wrapper) {
3795 mono_mb_emit_op (mb, CEE_CALL, method);
3797 mono_mb_emit_ldarg (mb, 3);
3798 mono_mb_emit_calli (mb, callsig);
3801 if (sig->ret->byref) {
3803 g_assert_not_reached ();
3806 switch (sig->ret->type) {
3807 case MONO_TYPE_VOID:
3811 case MONO_TYPE_BOOLEAN:
3812 case MONO_TYPE_CHAR:
3825 case MONO_TYPE_VALUETYPE:
3826 case MONO_TYPE_TYPEDBYREF:
3827 case MONO_TYPE_GENERICINST:
3828 /* box value types */
3829 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3831 case MONO_TYPE_STRING:
3832 case MONO_TYPE_CLASS:
3833 case MONO_TYPE_ARRAY:
3834 case MONO_TYPE_SZARRAY:
3835 case MONO_TYPE_OBJECT:
3839 /* The result is an IntPtr */
3840 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3843 g_assert_not_reached ();
3847 mono_mb_emit_stloc (mb, loc_res);
3849 /* Convert back nullable-byref arguments */
3850 for (i = 0; i < sig->param_count; i++) {
3851 MonoType *t = sig->params [i];
3854 * Box the result and put it back into the array, the caller will have
3855 * to obtain it from there.
3857 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3858 mono_mb_emit_ldarg (mb, 1);
3859 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3860 mono_mb_emit_byte (mb, CEE_ADD);
3862 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3863 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3865 mono_mb_emit_byte (mb, CEE_STIND_REF);
3869 g_free (tmp_nullable_locals);
3873 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3874 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3875 gboolean virtual_, gboolean need_direct_wrapper)
3878 MonoExceptionClause *clause;
3879 int loc_res, loc_exc;
3881 /* The wrapper looks like this:
3887 * } catch (Exception e) {
3895 /* allocate local 0 (object) tmp */
3896 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3897 /* allocate local 1 (object) exc */
3898 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3900 /* *exc is assumed to be initialized to NULL by the caller */
3902 mono_mb_emit_byte (mb, CEE_LDARG_2);
3903 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3908 labels [1] = mono_mb_get_label (mb);
3909 emit_thread_force_interrupt_checkpoint (mb);
3910 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3912 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3914 /* Add a try clause around the call */
3915 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3916 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3917 clause->data.catch_class = mono_defaults.exception_class;
3918 clause->try_offset = labels [1];
3919 clause->try_len = mono_mb_get_label (mb) - labels [1];
3921 clause->handler_offset = mono_mb_get_label (mb);
3924 mono_mb_emit_stloc (mb, loc_exc);
3925 mono_mb_emit_byte (mb, CEE_LDARG_2);
3926 mono_mb_emit_ldloc (mb, loc_exc);
3927 mono_mb_emit_byte (mb, CEE_STIND_REF);
3929 mono_mb_emit_branch (mb, CEE_LEAVE);
3931 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3933 mono_mb_set_clauses (mb, 1, clause);
3935 mono_mb_patch_branch (mb, labels [2]);
3936 mono_mb_emit_ldloc (mb, loc_res);
3937 mono_mb_emit_byte (mb, CEE_RET);
3942 mono_mb_patch_branch (mb, labels [0]);
3943 emit_thread_force_interrupt_checkpoint (mb);
3944 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3946 mono_mb_emit_ldloc (mb, 0);
3947 mono_mb_emit_byte (mb, CEE_RET);
3952 * generates IL code for the runtime invoke function
3953 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3955 * we also catch exceptions if exc != null
3956 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3957 * it means that the compiled code for METHOD does not have to be looked up
3958 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3959 * its METHOD argument.
3962 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3964 MonoMethodSignature *sig, *csig, *callsig;
3965 MonoMethodBuilder *mb;
3966 GHashTable *cache = NULL;
3967 MonoClass *target_klass;
3968 MonoMethod *res = NULL;
3969 static MonoMethodSignature *cctor_signature = NULL;
3970 static MonoMethodSignature *finalize_signature = NULL;
3972 const char *param_names [16];
3973 gboolean need_direct_wrapper = FALSE;
3978 if (!cctor_signature) {
3979 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3980 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3982 if (!finalize_signature) {
3983 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3984 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3985 finalize_signature->hasthis = 1;
3989 need_direct_wrapper = TRUE;
3992 * Use a separate cache indexed by methods to speed things up and to avoid the
3993 * boundless mempool growth caused by the signature_dup stuff below.
3996 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3998 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4000 res = mono_marshal_find_in_cache (cache, method);
4004 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4005 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4007 * Array Get/Set/Address methods. The JIT implements them using inline code
4008 * so we need to create an invoke wrapper which calls the method directly.
4010 need_direct_wrapper = TRUE;
4013 if (method->string_ctor) {
4014 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4016 callsig = add_string_ctor_signature (method);
4017 /* Can't share this as we push a string as this */
4018 need_direct_wrapper = TRUE;
4020 if (method_is_dynamic (method))
4021 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4023 callsig = mono_method_signature (method);
4026 sig = mono_method_signature (method);
4028 target_klass = get_wrapper_target_class (method->klass->image);
4030 /* Try to share wrappers for non-corlib methods with simple signatures */
4031 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4032 callsig = cctor_signature;
4033 target_klass = mono_defaults.object_class;
4034 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4035 callsig = finalize_signature;
4036 target_klass = mono_defaults.object_class;
4039 if (need_direct_wrapper) {
4040 /* Already searched at the start */
4042 MonoMethodSignature *tmp_sig;
4044 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4045 GHashTable **cache_table = NULL;
4047 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4048 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4050 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4052 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4053 (GCompareFunc)runtime_invoke_signature_equal);
4055 /* from mono_marshal_find_in_cache */
4056 mono_marshal_lock ();
4057 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4058 mono_marshal_unlock ();
4065 /* Make a copy of the signature from the image mempool */
4067 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4071 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4073 csig->ret = &mono_defaults.object_class->byval_arg;
4074 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4075 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4077 csig->params [0] = &mono_defaults.object_class->byval_arg;
4078 csig->params [1] = &mono_defaults.int_class->byval_arg;
4079 csig->params [2] = &mono_defaults.int_class->byval_arg;
4080 csig->params [3] = &mono_defaults.int_class->byval_arg;
4083 /* This is called from runtime code so it has to be cdecl */
4084 csig->call_convention = MONO_CALL_C;
4087 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4088 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4092 param_names [0] = "this";
4093 param_names [1] = "params";
4094 param_names [2] = "exc";
4095 param_names [3] = "method";
4096 mono_mb_set_param_names (mb, param_names);
4098 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4101 if (need_direct_wrapper) {
4103 mb->skip_visibility = 1;
4105 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4106 info->d.runtime_invoke.method = method;
4107 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4109 /* taken from mono_mb_create_and_cache */
4110 mono_marshal_lock ();
4111 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4112 mono_marshal_unlock ();
4114 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4115 info->d.runtime_invoke.sig = callsig;
4117 /* Somebody may have created it before us */
4120 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4122 mono_marshal_lock ();
4123 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4125 GHashTable *direct_cache;
4127 g_hash_table_insert (cache, callsig, res);
4128 /* Can't insert it into wrapper_hash since the key is a signature */
4129 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4131 g_hash_table_insert (direct_cache, method, res);
4133 mono_free_method (newm);
4135 mono_marshal_unlock ();
4138 /* end mono_mb_create_and_cache */
4147 * mono_marshal_get_runtime_invoke_dynamic:
4149 * Return a method which can be used to invoke managed methods from native code
4151 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4152 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4153 * ARGS should point to an architecture specific structure containing
4154 * the arguments and space for the return value.
4155 * The other arguments are the same as for runtime_invoke (), except that
4156 * ARGS should contain the this argument too.
4157 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4158 * is only one copy of it, which is useful in full-aot.
4159 * The wrapper info for the wrapper is a WrapperInfo structure.
4162 mono_marshal_get_runtime_invoke_dynamic (void)
4164 static MonoMethod *method;
4165 MonoMethodSignature *csig;
4166 MonoExceptionClause *clause;
4167 MonoMethodBuilder *mb;
4175 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4177 csig->ret = &mono_defaults.void_class->byval_arg;
4178 csig->params [0] = &mono_defaults.int_class->byval_arg;
4179 csig->params [1] = &mono_defaults.int_class->byval_arg;
4180 csig->params [2] = &mono_defaults.int_class->byval_arg;
4181 csig->params [3] = &mono_defaults.int_class->byval_arg;
4183 name = g_strdup ("runtime_invoke_dynamic");
4184 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4188 /* allocate local 0 (object) tmp */
4189 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4190 /* allocate local 1 (object) exc */
4191 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4193 /* cond set *exc to null */
4194 mono_mb_emit_byte (mb, CEE_LDARG_1);
4195 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4196 mono_mb_emit_byte (mb, 3);
4197 mono_mb_emit_byte (mb, CEE_LDARG_1);
4198 mono_mb_emit_byte (mb, CEE_LDNULL);
4199 mono_mb_emit_byte (mb, CEE_STIND_REF);
4201 emit_thread_force_interrupt_checkpoint (mb);
4203 mono_mb_emit_byte (mb, CEE_LDARG_0);
4204 mono_mb_emit_byte (mb, CEE_LDARG_2);
4205 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4206 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4208 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4210 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4211 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4212 clause->try_len = mono_mb_get_label (mb);
4215 clause->data.filter_offset = mono_mb_get_label (mb);
4217 mono_mb_emit_byte (mb, CEE_POP);
4218 mono_mb_emit_byte (mb, CEE_LDARG_1);
4219 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4220 mono_mb_emit_byte (mb, CEE_PREFIX1);
4221 mono_mb_emit_byte (mb, CEE_CGT_UN);
4222 mono_mb_emit_byte (mb, CEE_PREFIX1);
4223 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4225 clause->handler_offset = mono_mb_get_label (mb);
4228 /* store exception */
4229 mono_mb_emit_stloc (mb, 1);
4231 mono_mb_emit_byte (mb, CEE_LDARG_1);
4232 mono_mb_emit_ldloc (mb, 1);
4233 mono_mb_emit_byte (mb, CEE_STIND_REF);
4235 mono_mb_emit_byte (mb, CEE_LDNULL);
4236 mono_mb_emit_stloc (mb, 0);
4238 /* Check for the abort exception */
4239 mono_mb_emit_ldloc (mb, 1);
4240 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4241 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4243 /* Delay the abort exception */
4244 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4246 mono_mb_patch_short_branch (mb, posna);
4247 mono_mb_emit_branch (mb, CEE_LEAVE);
4249 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4251 mono_mb_set_clauses (mb, 1, clause);
4254 mono_mb_patch_branch (mb, pos);
4255 //mono_mb_emit_ldloc (mb, 0);
4256 mono_mb_emit_byte (mb, CEE_RET);
4257 #endif /* DISABLE_JIT */
4259 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4261 mono_marshal_lock ();
4262 /* double-checked locking */
4264 method = mono_mb_create (mb, csig, 16, info);
4266 mono_marshal_unlock ();
4274 * mono_marshal_get_runtime_invoke_for_sig:
4276 * Return a runtime invoke wrapper for a given signature.
4279 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4281 MonoMethodSignature *csig, *callsig;
4282 MonoMethodBuilder *mb;
4284 GHashTable *cache = NULL;
4285 GHashTable **cache_table = NULL;
4286 MonoMethod *res = NULL;
4288 const char *param_names [16];
4291 /* A simplified version of mono_marshal_get_runtime_invoke */
4293 image = mono_defaults.corlib;
4295 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4297 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4299 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4300 (GCompareFunc)runtime_invoke_signature_equal);
4302 /* from mono_marshal_find_in_cache */
4303 mono_marshal_lock ();
4304 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4305 mono_marshal_unlock ();
4312 /* Make a copy of the signature from the image mempool */
4313 callsig = mono_metadata_signature_dup_full (image, callsig);
4315 csig = mono_metadata_signature_alloc (image, 4);
4316 csig->ret = &mono_defaults.object_class->byval_arg;
4317 csig->params [0] = &mono_defaults.object_class->byval_arg;
4318 csig->params [1] = &mono_defaults.int_class->byval_arg;
4319 csig->params [2] = &mono_defaults.int_class->byval_arg;
4320 csig->params [3] = &mono_defaults.int_class->byval_arg;
4323 /* This is called from runtime code so it has to be cdecl */
4324 csig->call_convention = MONO_CALL_C;
4327 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4328 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4332 param_names [0] = "this";
4333 param_names [1] = "params";
4334 param_names [2] = "exc";
4335 param_names [3] = "method";
4336 mono_mb_set_param_names (mb, param_names);
4338 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4341 /* taken from mono_mb_create_and_cache */
4342 mono_marshal_lock ();
4343 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4344 mono_marshal_unlock ();
4346 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4347 info->d.runtime_invoke.sig = callsig;
4349 /* Somebody may have created it before us */
4352 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4354 mono_marshal_lock ();
4355 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4358 g_hash_table_insert (cache, callsig, res);
4360 mono_free_method (newm);
4362 mono_marshal_unlock ();
4365 /* end mono_mb_create_and_cache */
4374 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4376 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4377 klass->name_space, klass->name);
4379 mono_mb_emit_exception_marshal_directive (mb, msg);
4384 * generates IL code for the icall wrapper (the generated method
4385 * calls the unmanaged code in func)
4386 * The wrapper info for the wrapper is a WrapperInfo structure.
4389 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4391 MonoMethodSignature *csig, *csig2;
4392 MonoMethodBuilder *mb;
4397 g_assert (sig->pinvoke);
4399 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4401 mb->method->save_lmf = 1;
4403 /* Add an explicit this argument */
4405 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4407 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4411 mono_mb_emit_byte (mb, CEE_LDARG_0);
4413 for (i = 0; i < sig->param_count; i++)
4414 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4416 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4417 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4418 mono_mb_emit_calli (mb, csig2);
4419 if (check_exceptions)
4420 emit_thread_interrupt_checkpoint (mb);
4421 mono_mb_emit_byte (mb, CEE_RET);
4424 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4426 if (csig->call_convention == MONO_CALL_VARARG)
4427 csig->call_convention = 0;
4429 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4430 info->d.icall.func = (gpointer)func;
4431 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4438 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4439 MonoMarshalSpec *spec,
4440 int conv_arg, MonoType **conv_arg_type,
4441 MarshalAction action)
4444 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4445 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4451 static MonoClass *ICustomMarshaler = NULL;
4452 static MonoMethod *cleanup_native, *cleanup_managed;
4453 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4454 MonoMethod *get_instance = NULL;
4455 MonoMethodBuilder *mb = m->mb;
4456 char *exception_msg = NULL;
4460 if (!ICustomMarshaler) {
4461 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4463 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4464 goto handle_exception;
4467 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4468 g_assert (cleanup_native);
4469 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4470 g_assert (cleanup_managed);
4471 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4472 g_assert (marshal_managed_to_native);
4473 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4474 g_assert (marshal_native_to_managed);
4476 mono_memory_barrier ();
4477 ICustomMarshaler = klass;
4480 if (spec->data.custom_data.image)
4481 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4483 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4484 g_assert (mtype != NULL);
4485 mono_error_assert_ok (&error);
4486 mklass = mono_class_from_mono_type (mtype);
4487 g_assert (mklass != NULL);
4489 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4490 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4492 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4494 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4495 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4496 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4497 (get_sig->params [0]->type != MONO_TYPE_STRING))
4498 get_instance = NULL;
4502 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);
4505 /* Throw exception and emit compensation code if neccesary */
4506 if (exception_msg) {
4508 case MARSHAL_ACTION_CONV_IN:
4509 case MARSHAL_ACTION_CONV_RESULT:
4510 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4511 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4512 mono_mb_emit_byte (mb, CEE_POP);
4514 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4515 g_free (exception_msg);
4518 case MARSHAL_ACTION_PUSH:
4519 mono_mb_emit_byte (mb, CEE_LDNULL);
4527 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4528 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4531 case MARSHAL_ACTION_CONV_IN:
4533 case MONO_TYPE_CLASS:
4534 case MONO_TYPE_OBJECT:
4535 case MONO_TYPE_STRING:
4536 case MONO_TYPE_ARRAY:
4537 case MONO_TYPE_SZARRAY:
4538 case MONO_TYPE_VALUETYPE:
4542 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4543 g_assert_not_reached ();
4547 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4549 mono_mb_emit_byte (mb, CEE_LDNULL);
4550 mono_mb_emit_stloc (mb, conv_arg);
4552 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4555 /* Minic MS.NET behavior */
4556 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4559 /* Check for null */
4560 mono_mb_emit_ldarg (mb, argnum);
4562 mono_mb_emit_byte (mb, CEE_LDIND_I);
4563 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4565 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4567 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4569 mono_mb_emit_ldarg (mb, argnum);
4571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4573 if (t->type == MONO_TYPE_VALUETYPE) {
4575 * Since we can't determine the type of the argument, we
4576 * will assume the unmanaged function takes a pointer.
4578 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4580 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4583 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4584 mono_mb_emit_stloc (mb, conv_arg);
4586 mono_mb_patch_branch (mb, pos2);
4589 case MARSHAL_ACTION_CONV_OUT:
4590 /* Check for null */
4591 mono_mb_emit_ldloc (mb, conv_arg);
4592 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4595 mono_mb_emit_ldarg (mb, argnum);
4597 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4599 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4601 mono_mb_emit_ldloc (mb, conv_arg);
4602 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4603 mono_mb_emit_byte (mb, CEE_STIND_REF);
4604 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
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);
4612 /* We have nowhere to store the result */
4613 mono_mb_emit_byte (mb, CEE_POP);
4616 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4618 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4620 mono_mb_emit_ldloc (mb, conv_arg);
4622 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4624 mono_mb_patch_branch (mb, pos2);
4627 case MARSHAL_ACTION_PUSH:
4629 mono_mb_emit_ldloc_addr (mb, conv_arg);
4631 mono_mb_emit_ldloc (mb, conv_arg);
4634 case MARSHAL_ACTION_CONV_RESULT:
4635 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4637 mono_mb_emit_stloc (mb, 3);
4639 mono_mb_emit_ldloc (mb, 3);
4640 mono_mb_emit_stloc (mb, loc1);
4642 /* Check for null */
4643 mono_mb_emit_ldloc (mb, 3);
4644 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4646 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4648 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4649 mono_mb_emit_byte (mb, CEE_DUP);
4651 mono_mb_emit_ldloc (mb, 3);
4652 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4653 mono_mb_emit_stloc (mb, 3);
4655 mono_mb_emit_ldloc (mb, loc1);
4656 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4658 mono_mb_patch_branch (mb, pos2);
4661 case MARSHAL_ACTION_MANAGED_CONV_IN:
4662 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4664 mono_mb_emit_byte (mb, CEE_LDNULL);
4665 mono_mb_emit_stloc (mb, conv_arg);
4667 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4670 /* Check for null */
4671 mono_mb_emit_ldarg (mb, argnum);
4673 mono_mb_emit_byte (mb, CEE_LDIND_I);
4674 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4676 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4677 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4679 mono_mb_emit_ldarg (mb, argnum);
4681 mono_mb_emit_byte (mb, CEE_LDIND_I);
4683 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4684 mono_mb_emit_stloc (mb, conv_arg);
4686 mono_mb_patch_branch (mb, pos2);
4689 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4690 g_assert (!t->byref);
4692 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4694 mono_mb_emit_stloc (mb, 3);
4696 mono_mb_emit_ldloc (mb, 3);
4697 mono_mb_emit_stloc (mb, loc1);
4699 /* Check for null */
4700 mono_mb_emit_ldloc (mb, 3);
4701 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4703 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4704 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4705 mono_mb_emit_byte (mb, CEE_DUP);
4707 mono_mb_emit_ldloc (mb, 3);
4708 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4709 mono_mb_emit_stloc (mb, 3);
4711 mono_mb_emit_ldloc (mb, loc1);
4712 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4714 mono_mb_patch_branch (mb, pos2);
4717 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4719 /* Check for null */
4720 mono_mb_emit_ldloc (mb, conv_arg);
4721 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4724 mono_mb_emit_ldarg (mb, argnum);
4726 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4728 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4730 mono_mb_emit_ldloc (mb, conv_arg);
4731 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4732 mono_mb_emit_byte (mb, CEE_STIND_I);
4735 /* Call CleanUpManagedData */
4736 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4738 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4740 mono_mb_emit_ldloc (mb, conv_arg);
4741 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4743 mono_mb_patch_branch (mb, pos2);
4747 g_assert_not_reached ();
4755 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4756 MonoMarshalSpec *spec,
4757 int conv_arg, MonoType **conv_arg_type,
4758 MarshalAction action)
4761 MonoMethodBuilder *mb = m->mb;
4764 case MARSHAL_ACTION_CONV_IN: {
4765 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4767 g_assert (t->type == MONO_TYPE_OBJECT);
4768 g_assert (!t->byref);
4770 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4771 mono_mb_emit_ldarg (mb, argnum);
4772 mono_mb_emit_icon (mb, encoding);
4773 mono_mb_emit_icon (mb, t->attrs);
4774 mono_mb_emit_icall (mb, mono_marshal_asany);
4775 mono_mb_emit_stloc (mb, conv_arg);
4779 case MARSHAL_ACTION_PUSH:
4780 mono_mb_emit_ldloc (mb, conv_arg);
4783 case MARSHAL_ACTION_CONV_OUT: {
4784 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4786 mono_mb_emit_ldarg (mb, argnum);
4787 mono_mb_emit_ldloc (mb, conv_arg);
4788 mono_mb_emit_icon (mb, encoding);
4789 mono_mb_emit_icon (mb, t->attrs);
4790 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4795 g_assert_not_reached ();
4802 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4803 MonoMarshalSpec *spec,
4804 int conv_arg, MonoType **conv_arg_type,
4805 MarshalAction action)
4808 MonoMethodBuilder *mb = m->mb;
4809 MonoClass *klass, *date_time_class;
4812 klass = mono_class_from_mono_type (t);
4814 date_time_class = mono_class_get_date_time_class ();
4817 case MARSHAL_ACTION_CONV_IN:
4818 if (klass == date_time_class) {
4819 /* Convert it to an OLE DATE type */
4820 static MonoMethod *to_oadate;
4823 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4824 g_assert (to_oadate);
4826 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4829 mono_mb_emit_ldarg (mb, argnum);
4830 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4833 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4835 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4837 mono_mb_emit_ldarg_addr (mb, argnum);
4838 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4839 mono_mb_emit_stloc (mb, conv_arg);
4843 mono_mb_patch_branch (mb, pos);
4847 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4848 klass->blittable || klass->enumtype)
4851 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4853 /* store the address of the source into local variable 0 */
4855 mono_mb_emit_ldarg (mb, argnum);
4857 mono_mb_emit_ldarg_addr (mb, argnum);
4859 mono_mb_emit_stloc (mb, 0);
4861 /* allocate space for the native struct and
4862 * store the address into local variable 1 (dest) */
4863 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4864 mono_mb_emit_byte (mb, CEE_PREFIX1);
4865 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4866 mono_mb_emit_stloc (mb, conv_arg);
4869 mono_mb_emit_ldloc (mb, 0);
4870 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4873 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4875 mono_mb_emit_ldloc (mb, conv_arg);
4876 mono_mb_emit_stloc (mb, 1);
4878 /* emit valuetype conversion code */
4879 emit_struct_conv (mb, klass, FALSE);
4883 mono_mb_patch_branch (mb, pos);
4886 case MARSHAL_ACTION_PUSH:
4887 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4889 g_assert (!t->byref);
4891 /* Have to change the signature since the vtype is passed byref */
4892 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4894 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4895 klass->blittable || klass->enumtype)
4896 mono_mb_emit_ldarg_addr (mb, argnum);
4898 mono_mb_emit_ldloc (mb, conv_arg);
4902 if (klass == date_time_class) {
4904 mono_mb_emit_ldloc_addr (mb, conv_arg);
4906 mono_mb_emit_ldloc (mb, conv_arg);
4910 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4911 klass->blittable || klass->enumtype) {
4912 mono_mb_emit_ldarg (mb, argnum);
4915 mono_mb_emit_ldloc (mb, conv_arg);
4917 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4918 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4922 case MARSHAL_ACTION_CONV_OUT:
4923 if (klass == date_time_class) {
4924 /* Convert from an OLE DATE type */
4925 static MonoMethod *from_oadate;
4930 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4932 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4933 g_assert (from_oadate);
4935 mono_mb_emit_ldarg (mb, argnum);
4936 mono_mb_emit_ldloc (mb, conv_arg);
4937 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4938 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4943 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4944 klass->blittable || klass->enumtype)
4948 /* dst = argument */
4949 mono_mb_emit_ldarg (mb, argnum);
4950 mono_mb_emit_stloc (mb, 1);
4952 mono_mb_emit_ldloc (mb, 1);
4953 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4955 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4956 /* src = tmp_locals [i] */
4957 mono_mb_emit_ldloc (mb, conv_arg);
4958 mono_mb_emit_stloc (mb, 0);
4960 /* emit valuetype conversion code */
4961 emit_struct_conv (mb, klass, TRUE);
4965 emit_struct_free (mb, klass, conv_arg);
4968 mono_mb_patch_branch (mb, pos);
4971 case MARSHAL_ACTION_CONV_RESULT:
4972 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4974 mono_mb_emit_stloc (mb, 3);
4978 /* load pointer to returned value type */
4979 g_assert (m->vtaddr_var);
4980 mono_mb_emit_ldloc (mb, m->vtaddr_var);
4981 /* store the address of the source into local variable 0 */
4982 mono_mb_emit_stloc (mb, 0);
4984 mono_mb_emit_ldloc_addr (mb, 3);
4985 mono_mb_emit_stloc (mb, 1);
4987 /* emit valuetype conversion code */
4988 emit_struct_conv (mb, klass, TRUE);
4991 case MARSHAL_ACTION_MANAGED_CONV_IN:
4992 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4993 klass->blittable || klass->enumtype) {
4998 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5000 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5004 mono_mb_emit_ldarg (mb, argnum);
5006 mono_mb_emit_ldarg_addr (mb, argnum);
5007 mono_mb_emit_stloc (mb, 0);
5010 mono_mb_emit_ldloc (mb, 0);
5011 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5014 mono_mb_emit_ldloc_addr (mb, conv_arg);
5015 mono_mb_emit_stloc (mb, 1);
5017 /* emit valuetype conversion code */
5018 emit_struct_conv (mb, klass, TRUE);
5021 mono_mb_patch_branch (mb, pos);
5024 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5025 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5026 klass->blittable || klass->enumtype) {
5030 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5033 /* Check for null */
5034 mono_mb_emit_ldarg (mb, argnum);
5035 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5038 mono_mb_emit_ldloc_addr (mb, conv_arg);
5039 mono_mb_emit_stloc (mb, 0);
5042 mono_mb_emit_ldarg (mb, argnum);
5043 mono_mb_emit_stloc (mb, 1);
5045 /* emit valuetype conversion code */
5046 emit_struct_conv (mb, klass, FALSE);
5048 mono_mb_patch_branch (mb, pos2);
5051 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5052 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5053 klass->blittable || klass->enumtype) {
5054 mono_mb_emit_stloc (mb, 3);
5059 /* load pointer to returned value type */
5060 g_assert (m->vtaddr_var);
5061 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5063 /* store the address of the source into local variable 0 */
5064 mono_mb_emit_stloc (mb, 0);
5065 /* allocate space for the native struct and
5066 * store the address into dst_ptr */
5067 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5068 m->retobj_class = klass;
5069 g_assert (m->retobj_var);
5070 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5071 mono_mb_emit_byte (mb, CEE_CONV_I);
5072 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5073 mono_mb_emit_stloc (mb, 1);
5074 mono_mb_emit_ldloc (mb, 1);
5075 mono_mb_emit_stloc (mb, m->retobj_var);
5077 /* emit valuetype conversion code */
5078 emit_struct_conv (mb, klass, FALSE);
5082 g_assert_not_reached ();
5089 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5090 MonoMarshalSpec *spec,
5091 int conv_arg, MonoType **conv_arg_type,
5092 MarshalAction action)
5096 case MARSHAL_ACTION_CONV_IN:
5097 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5099 case MARSHAL_ACTION_MANAGED_CONV_IN:
5100 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5104 MonoMethodBuilder *mb = m->mb;
5105 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5106 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5110 case MARSHAL_ACTION_CONV_IN:
5111 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5112 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5115 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5118 mono_mb_emit_ldarg (mb, argnum);
5119 mono_mb_emit_byte (mb, CEE_LDIND_I);
5121 mono_mb_emit_ldarg (mb, argnum);
5124 if (conv == MONO_MARSHAL_CONV_INVALID) {
5125 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5126 mono_mb_emit_exception_marshal_directive (mb, msg);
5128 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5130 mono_mb_emit_stloc (mb, conv_arg);
5134 case MARSHAL_ACTION_CONV_OUT:
5135 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5136 if (conv == MONO_MARSHAL_CONV_INVALID) {
5137 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5138 mono_mb_emit_exception_marshal_directive (mb, msg);
5142 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5143 static MonoMethod *m;
5146 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5151 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5152 mono_mb_emit_exception_marshal_directive (mb, msg);
5157 * Have to allocate a new string with the same length as the original, and
5158 * copy the contents of the buffer pointed to by CONV_ARG into it.
5160 g_assert (t->byref);
5161 mono_mb_emit_ldarg (mb, argnum);
5162 mono_mb_emit_ldloc (mb, conv_arg);
5163 mono_mb_emit_ldarg (mb, argnum);
5164 mono_mb_emit_byte (mb, CEE_LDIND_I);
5165 mono_mb_emit_managed_call (mb, m, NULL);
5166 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5167 mono_mb_emit_byte (mb, CEE_STIND_REF);
5168 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5170 mono_mb_emit_ldarg (mb, argnum);
5171 mono_mb_emit_ldloc (mb, conv_arg);
5172 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5173 mono_mb_emit_byte (mb, stind_op);
5178 mono_mb_emit_ldloc (mb, conv_arg);
5179 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5180 mono_mb_emit_icall (mb, mono_free_bstr);
5182 mono_mb_emit_icall (mb, mono_marshal_free);
5186 case MARSHAL_ACTION_PUSH:
5187 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5188 mono_mb_emit_ldloc_addr (mb, conv_arg);
5190 mono_mb_emit_ldloc (mb, conv_arg);
5193 case MARSHAL_ACTION_CONV_RESULT:
5194 mono_mb_emit_stloc (mb, 0);
5196 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5197 if (conv == MONO_MARSHAL_CONV_INVALID) {
5198 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5199 mono_mb_emit_exception_marshal_directive (mb, msg);
5203 mono_mb_emit_ldloc (mb, 0);
5204 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5205 mono_mb_emit_stloc (mb, 3);
5207 /* free the string */
5208 mono_mb_emit_ldloc (mb, 0);
5209 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5210 mono_mb_emit_icall (mb, mono_free_bstr);
5212 mono_mb_emit_icall (mb, mono_marshal_free);
5215 case MARSHAL_ACTION_MANAGED_CONV_IN:
5216 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5218 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5221 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5225 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5226 if (conv == MONO_MARSHAL_CONV_INVALID) {
5227 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5228 mono_mb_emit_exception_marshal_directive (mb, msg);
5232 mono_mb_emit_ldarg (mb, argnum);
5234 mono_mb_emit_byte (mb, CEE_LDIND_I);
5235 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5236 mono_mb_emit_stloc (mb, conv_arg);
5239 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5243 mono_mb_emit_ldarg (mb, argnum);
5244 mono_mb_emit_ldloc (mb, conv_arg);
5245 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5246 mono_mb_emit_byte (mb, stind_op);
5251 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5252 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5253 /* We need to make a copy so the caller is able to free it */
5254 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5256 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5257 mono_mb_emit_stloc (mb, 3);
5261 g_assert_not_reached ();
5269 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5270 MonoMarshalSpec *spec, int conv_arg,
5271 MonoType **conv_arg_type, MarshalAction action)
5274 if (action == MARSHAL_ACTION_CONV_IN)
5275 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5277 MonoMethodBuilder *mb = m->mb;
5280 case MARSHAL_ACTION_CONV_IN: {
5281 MonoType *intptr_type;
5282 int dar_release_slot, pos;
5284 intptr_type = &mono_defaults.int_class->byval_arg;
5285 conv_arg = mono_mb_add_local (mb, intptr_type);
5286 *conv_arg_type = intptr_type;
5288 if (!sh_dangerous_add_ref)
5289 init_safe_handle ();
5291 mono_mb_emit_ldarg (mb, argnum);
5292 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5293 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5295 mono_mb_patch_branch (mb, pos);
5298 * My tests in show that ref SafeHandles are not really
5299 * passed as ref objects. Instead a NULL is passed as the
5302 mono_mb_emit_icon (mb, 0);
5303 mono_mb_emit_stloc (mb, conv_arg);
5307 /* Create local to hold the ref parameter to DangerousAddRef */
5308 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5310 /* set release = false; */
5311 mono_mb_emit_icon (mb, 0);
5312 mono_mb_emit_stloc (mb, dar_release_slot);
5314 /* safehandle.DangerousAddRef (ref release) */
5315 mono_mb_emit_ldarg (mb, argnum);
5316 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5317 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5319 /* Pull the handle field from SafeHandle */
5320 mono_mb_emit_ldarg (mb, argnum);
5321 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5322 mono_mb_emit_byte (mb, CEE_LDIND_I);
5323 mono_mb_emit_stloc (mb, conv_arg);
5328 case MARSHAL_ACTION_PUSH:
5330 mono_mb_emit_ldloc_addr (mb, conv_arg);
5332 mono_mb_emit_ldloc (mb, conv_arg);
5335 case MARSHAL_ACTION_CONV_OUT: {
5336 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5337 int dar_release_slot = conv_arg + 1;
5340 if (!sh_dangerous_release)
5341 init_safe_handle ();
5347 * My tests indicate that ref SafeHandles parameters are not actually
5348 * passed by ref, but instead a new Handle is created regardless of
5349 * whether a change happens in the unmanaged side.
5351 * Also, the Handle is created before calling into unmanaged code,
5352 * but we do not support that mechanism (getting to the original
5353 * handle) and it makes no difference where we create this
5355 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5357 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5360 /* refval = new SafeHandleDerived ()*/
5361 mono_mb_emit_ldarg (mb, argnum);
5362 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5363 mono_mb_emit_byte (mb, CEE_STIND_REF);
5365 /* refval.handle = returned_handle */
5366 mono_mb_emit_ldarg (mb, argnum);
5367 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5368 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5369 mono_mb_emit_ldloc (mb, conv_arg);
5370 mono_mb_emit_byte (mb, CEE_STIND_I);
5372 mono_mb_emit_ldloc (mb, dar_release_slot);
5373 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5374 mono_mb_emit_ldarg (mb, argnum);
5375 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5376 mono_mb_patch_branch (mb, label_next);
5381 case MARSHAL_ACTION_CONV_RESULT: {
5382 MonoMethod *ctor = NULL;
5383 int intptr_handle_slot;
5385 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5386 mono_mb_emit_byte (mb, CEE_POP);
5387 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5391 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5393 mono_mb_emit_byte (mb, CEE_POP);
5394 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5397 /* Store the IntPtr results into a local */
5398 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5399 mono_mb_emit_stloc (mb, intptr_handle_slot);
5401 /* Create return value */
5402 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5403 mono_mb_emit_stloc (mb, 3);
5405 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5406 mono_mb_emit_ldloc (mb, 3);
5407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5408 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5409 mono_mb_emit_byte (mb, CEE_STIND_I);
5413 case MARSHAL_ACTION_MANAGED_CONV_IN:
5414 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5417 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5418 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5421 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5422 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5425 printf ("Unhandled case for MarshalAction: %d\n", action);
5433 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5434 MonoMarshalSpec *spec, int conv_arg,
5435 MonoType **conv_arg_type, MarshalAction action)
5438 if (action == MARSHAL_ACTION_CONV_IN)
5439 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5441 MonoMethodBuilder *mb = m->mb;
5444 case MARSHAL_ACTION_CONV_IN: {
5445 MonoType *intptr_type;
5447 intptr_type = &mono_defaults.int_class->byval_arg;
5448 conv_arg = mono_mb_add_local (mb, intptr_type);
5449 *conv_arg_type = intptr_type;
5452 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5453 mono_mb_emit_exception_marshal_directive (mb, msg);
5456 mono_mb_emit_ldarg_addr (mb, argnum);
5457 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5458 mono_mb_emit_byte (mb, CEE_ADD);
5459 mono_mb_emit_byte (mb, CEE_LDIND_I);
5460 mono_mb_emit_stloc (mb, conv_arg);
5464 case MARSHAL_ACTION_PUSH:
5465 mono_mb_emit_ldloc (mb, conv_arg);
5468 case MARSHAL_ACTION_CONV_OUT: {
5469 /* no resource release required */
5473 case MARSHAL_ACTION_CONV_RESULT: {
5474 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5475 mono_mb_emit_exception_marshal_directive (mb, msg);
5479 case MARSHAL_ACTION_MANAGED_CONV_IN:
5480 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5483 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5484 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5487 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5488 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5491 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5499 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5500 MonoMarshalSpec *spec,
5501 int conv_arg, MonoType **conv_arg_type,
5502 MarshalAction action)
5505 if (action == MARSHAL_ACTION_CONV_IN)
5506 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5508 MonoMethodBuilder *mb = m->mb;
5509 MonoClass *klass = mono_class_from_mono_type (t);
5513 case MARSHAL_ACTION_CONV_IN:
5514 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5515 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5517 m->orig_conv_args [argnum] = 0;
5519 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5520 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5521 mono_mb_emit_exception_marshal_directive (mb, msg);
5525 if (klass->delegate) {
5527 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5528 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5529 mono_mb_emit_exception_marshal_directive (mb, msg);
5531 mono_mb_emit_byte (mb, CEE_LDNULL);
5532 mono_mb_emit_stloc (mb, conv_arg);
5534 mono_mb_emit_ldarg (mb, argnum);
5535 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5536 mono_mb_emit_stloc (mb, conv_arg);
5538 } else if (klass == mono_defaults.stringbuilder_class) {
5539 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5540 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5544 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5545 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5546 mono_mb_emit_exception_marshal_directive (mb, msg);
5552 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5555 if (conv == MONO_MARSHAL_CONV_INVALID) {
5556 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5557 mono_mb_emit_exception_marshal_directive (mb, msg);
5561 mono_mb_emit_ldarg (mb, argnum);
5563 mono_mb_emit_byte (mb, CEE_LDIND_I);
5565 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5566 mono_mb_emit_stloc (mb, conv_arg);
5567 } else if (klass->blittable) {
5568 mono_mb_emit_byte (mb, CEE_LDNULL);
5569 mono_mb_emit_stloc (mb, conv_arg);
5571 mono_mb_emit_ldarg (mb, argnum);
5572 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5574 mono_mb_emit_ldarg (mb, argnum);
5575 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5576 mono_mb_emit_stloc (mb, conv_arg);
5578 mono_mb_patch_branch (mb, pos);
5581 mono_mb_emit_byte (mb, CEE_LDNULL);
5582 mono_mb_emit_stloc (mb, conv_arg);
5585 /* we dont need any conversions for out parameters */
5586 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5589 mono_mb_emit_ldarg (mb, argnum);
5590 mono_mb_emit_byte (mb, CEE_LDIND_I);
5593 mono_mb_emit_ldarg (mb, argnum);
5594 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5595 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5598 /* store the address of the source into local variable 0 */
5599 mono_mb_emit_stloc (mb, 0);
5600 mono_mb_emit_ldloc (mb, 0);
5601 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5603 /* allocate space for the native struct and store the address */
5604 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5605 mono_mb_emit_byte (mb, CEE_PREFIX1);
5606 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5607 mono_mb_emit_stloc (mb, conv_arg);
5610 /* Need to store the original buffer so we can free it later */
5611 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5612 mono_mb_emit_ldloc (mb, conv_arg);
5613 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5616 /* set the src_ptr */
5617 mono_mb_emit_ldloc (mb, 0);
5618 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5619 mono_mb_emit_stloc (mb, 0);
5622 mono_mb_emit_ldloc (mb, conv_arg);
5623 mono_mb_emit_stloc (mb, 1);
5625 /* emit valuetype conversion code */
5626 emit_struct_conv (mb, klass, FALSE);
5628 mono_mb_patch_branch (mb, pos);
5632 case MARSHAL_ACTION_CONV_OUT:
5633 if (klass == mono_defaults.stringbuilder_class) {
5635 MonoMarshalNative encoding;
5636 MonoMarshalConv conv;
5638 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5639 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5641 g_assert (encoding != -1);
5644 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5648 mono_mb_emit_ldarg (mb, argnum);
5649 mono_mb_emit_ldloc (mb, conv_arg);
5652 case MONO_NATIVE_LPWSTR:
5653 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5655 case MONO_NATIVE_LPSTR:
5656 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5659 g_assert_not_reached ();
5662 mono_mb_emit_byte (mb, CEE_STIND_REF);
5664 mono_mb_emit_ldarg (mb, argnum);
5665 mono_mb_emit_ldloc (mb, conv_arg);
5667 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5671 mono_mb_emit_ldloc (mb, conv_arg);
5672 mono_mb_emit_icall (mb, mono_marshal_free);
5677 if (klass->delegate) {
5679 mono_mb_emit_ldarg (mb, argnum);
5680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5681 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5682 mono_mb_emit_ldloc (mb, conv_arg);
5683 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5684 mono_mb_emit_byte (mb, CEE_STIND_REF);
5689 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5690 /* allocate a new object */
5691 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5693 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5694 mono_mb_emit_byte (mb, CEE_STIND_REF);
5697 /* dst = *argument */
5698 mono_mb_emit_ldarg (mb, argnum);
5701 mono_mb_emit_byte (mb, CEE_LDIND_I);
5703 mono_mb_emit_stloc (mb, 1);
5705 mono_mb_emit_ldloc (mb, 1);
5706 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5708 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5709 mono_mb_emit_ldloc (mb, 1);
5710 mono_mb_emit_icon (mb, sizeof (MonoObject));
5711 mono_mb_emit_byte (mb, CEE_ADD);
5712 mono_mb_emit_stloc (mb, 1);
5714 /* src = tmp_locals [i] */
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 mono_mb_emit_stloc (mb, 0);
5718 /* emit valuetype conversion code */
5719 emit_struct_conv (mb, klass, TRUE);
5721 /* Free the structure returned by the native code */
5722 emit_struct_free (mb, klass, conv_arg);
5724 if (m->orig_conv_args [argnum]) {
5726 * If the native function changed the pointer, then free
5727 * the original structure plus the new pointer.
5729 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5730 mono_mb_emit_ldloc (mb, conv_arg);
5731 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5733 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5734 g_assert (m->orig_conv_args [argnum]);
5736 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5739 mono_mb_emit_ldloc (mb, conv_arg);
5740 mono_mb_emit_icall (mb, mono_marshal_free);
5742 mono_mb_patch_branch (mb, pos2);
5746 /* Free the original structure passed to native code */
5747 emit_struct_free (mb, klass, conv_arg);
5749 mono_mb_patch_branch (mb, pos);
5752 case MARSHAL_ACTION_PUSH:
5754 mono_mb_emit_ldloc_addr (mb, conv_arg);
5756 mono_mb_emit_ldloc (mb, conv_arg);
5759 case MARSHAL_ACTION_CONV_RESULT:
5760 if (klass->delegate) {
5761 g_assert (!t->byref);
5762 mono_mb_emit_stloc (mb, 0);
5763 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5764 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5765 mono_mb_emit_ldloc (mb, 0);
5766 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5767 mono_mb_emit_stloc (mb, 3);
5770 mono_mb_emit_stloc (mb, 0);
5772 /* Make a copy since emit_conv modifies local 0 */
5773 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5774 mono_mb_emit_ldloc (mb, 0);
5775 mono_mb_emit_stloc (mb, loc);
5777 mono_mb_emit_byte (mb, CEE_LDNULL);
5778 mono_mb_emit_stloc (mb, 3);
5780 mono_mb_emit_ldloc (mb, 0);
5781 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5783 /* allocate result object */
5785 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5786 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5787 mono_mb_emit_stloc (mb, 3);
5791 mono_mb_emit_ldloc (mb, 3);
5792 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5793 mono_mb_emit_stloc (mb, 1);
5795 /* emit conversion code */
5796 emit_struct_conv (mb, klass, TRUE);
5798 emit_struct_free (mb, klass, loc);
5800 /* Free the pointer allocated by unmanaged code */
5801 mono_mb_emit_ldloc (mb, loc);
5802 mono_mb_emit_icall (mb, mono_marshal_free);
5803 mono_mb_patch_branch (mb, pos);
5807 case MARSHAL_ACTION_MANAGED_CONV_IN:
5808 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5810 if (klass->delegate) {
5811 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5812 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5813 mono_mb_emit_ldarg (mb, argnum);
5815 mono_mb_emit_byte (mb, CEE_LDIND_I);
5816 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5817 mono_mb_emit_stloc (mb, conv_arg);
5821 if (klass == mono_defaults.stringbuilder_class) {
5822 MonoMarshalNative encoding;
5824 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5827 g_assert (encoding == MONO_NATIVE_LPSTR);
5829 g_assert (!t->byref);
5830 g_assert (encoding != -1);
5832 mono_mb_emit_ldarg (mb, argnum);
5833 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5834 mono_mb_emit_stloc (mb, conv_arg);
5838 /* The class can not have an automatic layout */
5839 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5840 mono_mb_emit_auto_layout_exception (mb, klass);
5844 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5845 mono_mb_emit_byte (mb, CEE_LDNULL);
5846 mono_mb_emit_stloc (mb, conv_arg);
5851 mono_mb_emit_ldarg (mb, argnum);
5855 /* Check for NULL and raise an exception */
5856 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5858 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5860 mono_mb_patch_branch (mb, pos2);
5861 mono_mb_emit_ldarg (mb, argnum);
5862 mono_mb_emit_byte (mb, CEE_LDIND_I);
5865 mono_mb_emit_stloc (mb, 0);
5867 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5868 mono_mb_emit_stloc (mb, conv_arg);
5870 mono_mb_emit_ldloc (mb, 0);
5871 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5873 /* Create and set dst */
5874 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5875 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5876 mono_mb_emit_stloc (mb, conv_arg);
5877 mono_mb_emit_ldloc (mb, conv_arg);
5878 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5879 mono_mb_emit_stloc (mb, 1);
5881 /* emit valuetype conversion code */
5882 emit_struct_conv (mb, klass, TRUE);
5884 mono_mb_patch_branch (mb, pos);
5887 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5888 if (klass->delegate) {
5891 mono_mb_emit_ldarg (mb, argnum);
5892 mono_mb_emit_ldloc (mb, conv_arg);
5893 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5894 mono_mb_emit_byte (mb, stind_op);
5900 /* Check for null */
5901 mono_mb_emit_ldloc (mb, conv_arg);
5902 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5905 mono_mb_emit_byte (mb, CEE_STIND_REF);
5906 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5908 mono_mb_patch_branch (mb, pos);
5911 mono_mb_emit_ldloc (mb, conv_arg);
5912 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5913 mono_mb_emit_stloc (mb, 0);
5915 /* Allocate and set dest */
5916 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5917 mono_mb_emit_byte (mb, CEE_CONV_I);
5918 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5919 mono_mb_emit_stloc (mb, 1);
5921 /* Update argument pointer */
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_ldloc (mb, 1);
5924 mono_mb_emit_byte (mb, CEE_STIND_I);
5926 /* emit valuetype conversion code */
5927 emit_struct_conv (mb, klass, FALSE);
5929 mono_mb_patch_branch (mb, pos2);
5930 } else if (klass == mono_defaults.stringbuilder_class) {
5931 // FIXME: What to do here ?
5933 /* byval [Out] marshalling */
5935 /* FIXME: Handle null */
5938 mono_mb_emit_ldloc (mb, conv_arg);
5939 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5940 mono_mb_emit_stloc (mb, 0);
5943 mono_mb_emit_ldarg (mb, argnum);
5944 mono_mb_emit_stloc (mb, 1);
5946 /* emit valuetype conversion code */
5947 emit_struct_conv (mb, klass, FALSE);
5951 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5952 if (klass->delegate) {
5953 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5954 mono_mb_emit_stloc (mb, 3);
5958 /* The class can not have an automatic layout */
5959 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5960 mono_mb_emit_auto_layout_exception (mb, klass);
5964 mono_mb_emit_stloc (mb, 0);
5965 /* Check for null */
5966 mono_mb_emit_ldloc (mb, 0);
5967 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5968 mono_mb_emit_byte (mb, CEE_LDNULL);
5969 mono_mb_emit_stloc (mb, 3);
5970 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5972 mono_mb_patch_branch (mb, pos);
5975 mono_mb_emit_ldloc (mb, 0);
5976 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5977 mono_mb_emit_stloc (mb, 0);
5979 /* Allocate and set dest */
5980 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5981 mono_mb_emit_byte (mb, CEE_CONV_I);
5982 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5983 mono_mb_emit_byte (mb, CEE_DUP);
5984 mono_mb_emit_stloc (mb, 1);
5985 mono_mb_emit_stloc (mb, 3);
5987 emit_struct_conv (mb, klass, FALSE);
5989 mono_mb_patch_branch (mb, pos2);
5993 g_assert_not_reached ();
6004 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6005 MonoMarshalSpec *spec,
6006 int conv_arg, MonoType **conv_arg_type,
6007 MarshalAction action)
6009 MonoMethodBuilder *mb = m->mb;
6010 static MonoMethod *get_object_for_native_variant = NULL;
6011 static MonoMethod *get_native_variant_for_object = NULL;
6013 if (!get_object_for_native_variant)
6014 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6015 g_assert (get_object_for_native_variant);
6017 if (!get_native_variant_for_object)
6018 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6019 g_assert (get_native_variant_for_object);
6022 case MARSHAL_ACTION_CONV_IN: {
6023 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6026 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6028 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6030 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6033 mono_mb_emit_ldarg (mb, argnum);
6035 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6036 mono_mb_emit_ldloc_addr (mb, conv_arg);
6037 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6041 case MARSHAL_ACTION_CONV_OUT: {
6042 static MonoMethod *variant_clear = NULL;
6045 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6046 g_assert (variant_clear);
6049 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6050 mono_mb_emit_ldarg (mb, argnum);
6051 mono_mb_emit_ldloc_addr (mb, conv_arg);
6052 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6053 mono_mb_emit_byte (mb, CEE_STIND_REF);
6056 mono_mb_emit_ldloc_addr (mb, conv_arg);
6057 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6061 case MARSHAL_ACTION_PUSH:
6063 mono_mb_emit_ldloc_addr (mb, conv_arg);
6065 mono_mb_emit_ldloc (mb, conv_arg);
6068 case MARSHAL_ACTION_CONV_RESULT: {
6069 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6070 mono_mb_emit_exception_marshal_directive (mb, msg);
6074 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6075 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6078 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6080 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6082 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6086 mono_mb_emit_ldarg (mb, argnum);
6088 mono_mb_emit_ldarg_addr (mb, argnum);
6089 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6090 mono_mb_emit_stloc (mb, conv_arg);
6094 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6095 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6096 mono_mb_emit_ldloc (mb, conv_arg);
6097 mono_mb_emit_ldarg (mb, argnum);
6098 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6103 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6104 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6105 mono_mb_emit_exception_marshal_directive (mb, msg);
6110 g_assert_not_reached ();
6116 #endif /* DISABLE_COM */
6117 #endif /* DISABLE_JIT */
6120 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6122 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6123 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6125 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6127 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6139 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6140 MonoMarshalSpec *spec,
6141 int conv_arg, MonoType **conv_arg_type,
6142 MarshalAction action)
6146 case MARSHAL_ACTION_CONV_IN:
6147 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6149 case MARSHAL_ACTION_MANAGED_CONV_IN:
6150 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6154 MonoMethodBuilder *mb = m->mb;
6155 MonoClass *klass = mono_class_from_mono_type (t);
6156 gboolean need_convert, need_free;
6157 MonoMarshalNative encoding;
6159 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6162 case MARSHAL_ACTION_CONV_IN:
6163 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6164 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6166 if (klass->element_class->blittable) {
6167 mono_mb_emit_ldarg (mb, argnum);
6169 mono_mb_emit_byte (mb, CEE_LDIND_I);
6170 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6171 mono_mb_emit_stloc (mb, conv_arg);
6174 guint32 label1, label2, label3;
6175 int index_var, src_var, dest_ptr, esize;
6176 MonoMarshalConv conv;
6177 gboolean is_string = FALSE;
6179 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6181 eklass = klass->element_class;
6183 if (eklass == mono_defaults.string_class) {
6185 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6187 else if (eklass == mono_defaults.stringbuilder_class) {
6189 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6192 conv = MONO_MARSHAL_CONV_INVALID;
6194 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6195 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6196 mono_mb_emit_exception_marshal_directive (mb, msg);
6200 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6201 mono_mb_emit_ldarg (mb, argnum);
6203 mono_mb_emit_byte (mb, CEE_LDIND_I);
6204 mono_mb_emit_stloc (mb, src_var);
6207 mono_mb_emit_ldloc (mb, src_var);
6208 mono_mb_emit_stloc (mb, conv_arg);
6209 mono_mb_emit_ldloc (mb, src_var);
6210 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6213 esize = sizeof (gpointer);
6214 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6215 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6217 esize = mono_class_native_size (eklass, NULL);
6219 /* allocate space for the native struct and store the address */
6220 mono_mb_emit_icon (mb, esize);
6221 mono_mb_emit_ldloc (mb, src_var);
6222 mono_mb_emit_byte (mb, CEE_LDLEN);
6224 if (eklass == mono_defaults.string_class) {
6225 /* Make the array bigger for the terminating null */
6226 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6227 mono_mb_emit_byte (mb, CEE_ADD);
6229 mono_mb_emit_byte (mb, CEE_MUL);
6230 mono_mb_emit_byte (mb, CEE_PREFIX1);
6231 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6232 mono_mb_emit_stloc (mb, conv_arg);
6234 mono_mb_emit_ldloc (mb, conv_arg);
6235 mono_mb_emit_stloc (mb, dest_ptr);
6237 /* Emit marshalling loop */
6238 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6239 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6240 mono_mb_emit_stloc (mb, index_var);
6241 label2 = mono_mb_get_label (mb);
6242 mono_mb_emit_ldloc (mb, index_var);
6243 mono_mb_emit_ldloc (mb, src_var);
6244 mono_mb_emit_byte (mb, CEE_LDLEN);
6245 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6247 /* Emit marshalling code */
6251 mono_mb_emit_ldloc (mb, dest_ptr);
6252 mono_mb_emit_ldloc (mb, src_var);
6253 mono_mb_emit_ldloc (mb, index_var);
6254 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6255 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6256 mono_mb_emit_byte (mb, stind_op);
6258 /* set the src_ptr */
6259 mono_mb_emit_ldloc (mb, src_var);
6260 mono_mb_emit_ldloc (mb, index_var);
6261 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6262 mono_mb_emit_stloc (mb, 0);
6265 mono_mb_emit_ldloc (mb, dest_ptr);
6266 mono_mb_emit_stloc (mb, 1);
6268 /* emit valuetype conversion code */
6269 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6272 mono_mb_emit_add_to_local (mb, index_var, 1);
6273 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6275 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6277 mono_mb_patch_branch (mb, label3);
6279 if (eklass == mono_defaults.string_class) {
6280 /* Null terminate */
6281 mono_mb_emit_ldloc (mb, dest_ptr);
6282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6283 mono_mb_emit_byte (mb, CEE_STIND_REF);
6286 mono_mb_patch_branch (mb, label1);
6291 case MARSHAL_ACTION_CONV_OUT:
6292 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6293 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);
6294 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6297 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6298 int param_num = spec->data.array_data.param_num;
6299 MonoType *param_type;
6301 param_type = m->sig->params [param_num];
6303 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6304 char *msg = g_strdup ("Not implemented.");
6305 mono_mb_emit_exception_marshal_directive (mb, msg);
6310 mono_mb_emit_ldarg (mb, argnum);
6312 /* Create the managed array */
6313 mono_mb_emit_ldarg (mb, param_num);
6314 if (m->sig->params [param_num]->byref)
6315 // FIXME: Support other types
6316 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6317 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6318 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6319 /* Store into argument */
6320 mono_mb_emit_byte (mb, CEE_STIND_REF);
6324 if (need_convert || need_free) {
6325 /* FIXME: Optimize blittable case */
6327 guint32 label1, label2, label3;
6328 int index_var, src_ptr, loc, esize;
6330 eklass = klass->element_class;
6331 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6332 esize = sizeof (gpointer);
6333 else if (eklass == mono_defaults.char_class)
6334 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6336 esize = mono_class_native_size (eklass, NULL);
6337 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6338 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6341 mono_mb_emit_ldarg (mb, argnum);
6343 mono_mb_emit_byte (mb, CEE_LDIND_I);
6344 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6346 mono_mb_emit_ldloc (mb, conv_arg);
6347 mono_mb_emit_stloc (mb, src_ptr);
6349 /* Emit marshalling loop */
6350 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6351 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6352 mono_mb_emit_stloc (mb, index_var);
6353 label2 = mono_mb_get_label (mb);
6354 mono_mb_emit_ldloc (mb, index_var);
6355 mono_mb_emit_ldarg (mb, argnum);
6357 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6358 mono_mb_emit_byte (mb, CEE_LDLEN);
6359 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6361 /* Emit marshalling code */
6363 if (eklass == mono_defaults.stringbuilder_class) {
6364 gboolean need_free2;
6365 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6367 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6370 mono_mb_emit_ldarg (mb, argnum);
6372 mono_mb_emit_byte (mb, CEE_LDIND_I);
6373 mono_mb_emit_ldloc (mb, index_var);
6374 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6377 mono_mb_emit_ldloc (mb, src_ptr);
6378 mono_mb_emit_byte (mb, CEE_LDIND_I);
6380 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6384 mono_mb_emit_ldloc (mb, src_ptr);
6385 mono_mb_emit_byte (mb, CEE_LDIND_I);
6387 mono_mb_emit_icall (mb, mono_marshal_free);
6390 else if (eklass == mono_defaults.string_class) {
6393 mono_mb_emit_ldloc (mb, src_ptr);
6394 mono_mb_emit_byte (mb, CEE_LDIND_I);
6396 mono_mb_emit_icall (mb, mono_marshal_free);
6401 /* set the src_ptr */
6402 mono_mb_emit_ldloc (mb, src_ptr);
6403 mono_mb_emit_stloc (mb, 0);
6406 mono_mb_emit_ldarg (mb, argnum);
6408 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6409 mono_mb_emit_ldloc (mb, index_var);
6410 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6411 mono_mb_emit_stloc (mb, 1);
6413 /* emit valuetype conversion code */
6414 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6418 mono_mb_emit_ldloc (mb, src_ptr);
6419 mono_mb_emit_stloc (mb, loc);
6420 mono_mb_emit_ldloc (mb, loc);
6422 emit_struct_free (mb, eklass, loc);
6426 mono_mb_emit_add_to_local (mb, index_var, 1);
6427 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6429 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6431 mono_mb_patch_branch (mb, label1);
6432 mono_mb_patch_branch (mb, label3);
6435 if (klass->element_class->blittable) {
6436 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6438 mono_mb_emit_ldarg (mb, argnum);
6440 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6441 mono_mb_emit_ldloc (mb, conv_arg);
6442 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6447 case MARSHAL_ACTION_PUSH:
6449 mono_mb_emit_ldloc_addr (mb, conv_arg);
6451 mono_mb_emit_ldloc (mb, conv_arg);
6454 case MARSHAL_ACTION_CONV_RESULT:
6455 /* fixme: we need conversions here */
6456 mono_mb_emit_stloc (mb, 3);
6459 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6461 guint32 label1, label2, label3;
6462 int index_var, src_ptr, esize, param_num, num_elem;
6463 MonoMarshalConv conv;
6464 gboolean is_string = FALSE;
6466 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6467 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6470 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6471 mono_mb_emit_exception_marshal_directive (mb, msg);
6475 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6476 mono_mb_emit_exception_marshal_directive (mb, msg);
6479 if (spec->native != MONO_NATIVE_LPARRAY) {
6480 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6481 mono_mb_emit_exception_marshal_directive (mb, msg);
6485 /* FIXME: t is from the method which is wrapped, not the delegate type */
6486 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6488 param_num = spec->data.array_data.param_num;
6489 num_elem = spec->data.array_data.num_elem;
6490 if (spec->data.array_data.elem_mult == 0)
6491 /* param_num is not specified */
6494 if (param_num == -1) {
6495 if (num_elem <= 0) {
6496 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6497 mono_mb_emit_exception_marshal_directive (mb, msg);
6502 /* FIXME: Optimize blittable case */
6504 eklass = klass->element_class;
6505 if (eklass == mono_defaults.string_class) {
6507 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6509 else if (eklass == mono_defaults.stringbuilder_class) {
6511 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6514 conv = MONO_MARSHAL_CONV_INVALID;
6516 mono_marshal_load_type_info (eklass);
6519 esize = sizeof (gpointer);
6521 esize = mono_class_native_size (eklass, NULL);
6522 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6524 mono_mb_emit_byte (mb, CEE_LDNULL);
6525 mono_mb_emit_stloc (mb, conv_arg);
6527 /* Check param index */
6528 if (param_num != -1) {
6529 if (param_num >= m->sig->param_count) {
6530 char *msg = g_strdup ("Array size control parameter index is out of range.");
6531 mono_mb_emit_exception_marshal_directive (mb, msg);
6534 switch (m->sig->params [param_num]->type) {
6547 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6548 mono_mb_emit_exception_marshal_directive (mb, msg);
6555 mono_mb_emit_ldarg (mb, argnum);
6556 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6558 mono_mb_emit_ldarg (mb, argnum);
6559 mono_mb_emit_stloc (mb, src_ptr);
6561 /* Create managed array */
6563 * The LPArray marshalling spec says that sometimes param_num starts
6564 * from 1, sometimes it starts from 0. But MS seems to allways start
6568 if (param_num == -1) {
6569 mono_mb_emit_icon (mb, num_elem);
6571 mono_mb_emit_ldarg (mb, param_num);
6573 mono_mb_emit_icon (mb, num_elem);
6574 mono_mb_emit_byte (mb, CEE_ADD);
6576 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6579 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6580 mono_mb_emit_stloc (mb, conv_arg);
6582 if (eklass->blittable) {
6583 mono_mb_emit_ldloc (mb, conv_arg);
6584 mono_mb_emit_byte (mb, CEE_CONV_I);
6585 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6586 mono_mb_emit_byte (mb, CEE_ADD);
6587 mono_mb_emit_ldarg (mb, argnum);
6588 mono_mb_emit_ldloc (mb, conv_arg);
6589 mono_mb_emit_byte (mb, CEE_LDLEN);
6590 mono_mb_emit_icon (mb, esize);
6591 mono_mb_emit_byte (mb, CEE_MUL);
6592 mono_mb_emit_byte (mb, CEE_PREFIX1);
6593 mono_mb_emit_byte (mb, CEE_CPBLK);
6597 /* Emit marshalling loop */
6598 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6599 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6600 mono_mb_emit_stloc (mb, index_var);
6601 label2 = mono_mb_get_label (mb);
6602 mono_mb_emit_ldloc (mb, index_var);
6603 mono_mb_emit_ldloc (mb, conv_arg);
6604 mono_mb_emit_byte (mb, CEE_LDLEN);
6605 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6607 /* Emit marshalling code */
6609 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_ldloc (mb, index_var);
6614 mono_mb_emit_ldloc (mb, src_ptr);
6615 mono_mb_emit_byte (mb, CEE_LDIND_I);
6617 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6618 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6621 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6622 mono_mb_emit_exception_marshal_directive (mb, msg);
6626 mono_mb_emit_add_to_local (mb, index_var, 1);
6627 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6629 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6631 mono_mb_patch_branch (mb, label1);
6632 mono_mb_patch_branch (mb, label3);
6636 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6638 guint32 label1, label2, label3;
6639 int index_var, dest_ptr, esize, param_num, num_elem;
6640 MonoMarshalConv conv;
6641 gboolean is_string = FALSE;
6644 /* Already handled in CONV_IN */
6647 /* These are already checked in CONV_IN */
6648 g_assert (!t->byref);
6649 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6650 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6652 param_num = spec->data.array_data.param_num;
6653 num_elem = spec->data.array_data.num_elem;
6655 if (spec->data.array_data.elem_mult == 0)
6656 /* param_num is not specified */
6659 if (param_num == -1) {
6660 if (num_elem <= 0) {
6661 g_assert_not_reached ();
6665 /* FIXME: Optimize blittable case */
6667 eklass = klass->element_class;
6668 if (eklass == mono_defaults.string_class) {
6670 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6672 else if (eklass == mono_defaults.stringbuilder_class) {
6674 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6677 conv = MONO_MARSHAL_CONV_INVALID;
6679 mono_marshal_load_type_info (eklass);
6682 esize = sizeof (gpointer);
6684 esize = mono_class_native_size (eklass, NULL);
6686 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6689 mono_mb_emit_ldloc (mb, conv_arg);
6690 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6692 mono_mb_emit_ldarg (mb, argnum);
6693 mono_mb_emit_stloc (mb, dest_ptr);
6695 if (eklass->blittable) {
6697 mono_mb_emit_ldarg (mb, argnum);
6699 mono_mb_emit_ldloc (mb, conv_arg);
6700 mono_mb_emit_byte (mb, CEE_CONV_I);
6701 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6702 mono_mb_emit_byte (mb, CEE_ADD);
6704 mono_mb_emit_ldloc (mb, conv_arg);
6705 mono_mb_emit_byte (mb, CEE_LDLEN);
6706 mono_mb_emit_icon (mb, esize);
6707 mono_mb_emit_byte (mb, CEE_MUL);
6708 mono_mb_emit_byte (mb, CEE_PREFIX1);
6709 mono_mb_emit_byte (mb, CEE_CPBLK);
6713 /* Emit marshalling loop */
6714 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6715 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6716 mono_mb_emit_stloc (mb, index_var);
6717 label2 = mono_mb_get_label (mb);
6718 mono_mb_emit_ldloc (mb, index_var);
6719 mono_mb_emit_ldloc (mb, conv_arg);
6720 mono_mb_emit_byte (mb, CEE_LDLEN);
6721 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6723 /* Emit marshalling code */
6726 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6729 mono_mb_emit_ldloc (mb, dest_ptr);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 mono_mb_emit_ldloc (mb, index_var);
6735 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6737 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6738 mono_mb_emit_byte (mb, stind_op);
6741 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6742 mono_mb_emit_exception_marshal_directive (mb, msg);
6746 mono_mb_emit_add_to_local (mb, index_var, 1);
6747 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6749 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6751 mono_mb_patch_branch (mb, label1);
6752 mono_mb_patch_branch (mb, label3);
6756 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6758 guint32 label1, label2, label3;
6759 int index_var, src, dest, esize;
6760 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6761 gboolean is_string = FALSE;
6763 g_assert (!t->byref);
6765 eklass = klass->element_class;
6767 mono_marshal_load_type_info (eklass);
6769 if (eklass == mono_defaults.string_class) {
6771 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6774 g_assert_not_reached ();
6778 esize = sizeof (gpointer);
6779 else if (eklass == mono_defaults.char_class)
6780 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6782 esize = mono_class_native_size (eklass, NULL);
6784 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6785 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6787 mono_mb_emit_stloc (mb, src);
6788 mono_mb_emit_ldloc (mb, src);
6789 mono_mb_emit_stloc (mb, 3);
6791 /* Check for null */
6792 mono_mb_emit_ldloc (mb, src);
6793 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6795 /* Allocate native array */
6796 mono_mb_emit_icon (mb, esize);
6797 mono_mb_emit_ldloc (mb, src);
6798 mono_mb_emit_byte (mb, CEE_LDLEN);
6800 if (eklass == mono_defaults.string_class) {
6801 /* Make the array bigger for the terminating null */
6802 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6803 mono_mb_emit_byte (mb, CEE_ADD);
6805 mono_mb_emit_byte (mb, CEE_MUL);
6806 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6807 mono_mb_emit_stloc (mb, dest);
6808 mono_mb_emit_ldloc (mb, dest);
6809 mono_mb_emit_stloc (mb, 3);
6811 /* Emit marshalling loop */
6812 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6813 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6814 mono_mb_emit_stloc (mb, index_var);
6815 label2 = mono_mb_get_label (mb);
6816 mono_mb_emit_ldloc (mb, index_var);
6817 mono_mb_emit_ldloc (mb, src);
6818 mono_mb_emit_byte (mb, CEE_LDLEN);
6819 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6821 /* Emit marshalling code */
6824 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6827 mono_mb_emit_ldloc (mb, dest);
6830 mono_mb_emit_ldloc (mb, src);
6831 mono_mb_emit_ldloc (mb, index_var);
6833 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6835 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6836 mono_mb_emit_byte (mb, stind_op);
6839 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6840 mono_mb_emit_exception_marshal_directive (mb, msg);
6844 mono_mb_emit_add_to_local (mb, index_var, 1);
6845 mono_mb_emit_add_to_local (mb, dest, esize);
6847 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6849 mono_mb_patch_branch (mb, label3);
6850 mono_mb_patch_branch (mb, label1);
6854 g_assert_not_reached ();
6861 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6864 return &mono_defaults.int32_class->byval_arg;
6866 switch (spec->native) {
6867 case MONO_NATIVE_I1:
6868 case MONO_NATIVE_U1:
6869 return &mono_defaults.byte_class->byval_arg;
6870 case MONO_NATIVE_VARIANTBOOL:
6871 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6872 return &mono_defaults.int16_class->byval_arg;
6873 case MONO_NATIVE_BOOLEAN:
6874 return &mono_defaults.int32_class->byval_arg;
6876 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6877 return &mono_defaults.int32_class->byval_arg;
6883 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6885 MonoClass* conv_arg_class = mono_defaults.int32_class;
6887 switch (spec->native) {
6888 case MONO_NATIVE_I1:
6889 case MONO_NATIVE_U1:
6890 conv_arg_class = mono_defaults.byte_class;
6891 if (ldop) *ldop = CEE_LDIND_I1;
6893 case MONO_NATIVE_VARIANTBOOL:
6894 conv_arg_class = mono_defaults.int16_class;
6895 if (ldop) *ldop = CEE_LDIND_I2;
6897 case MONO_NATIVE_BOOLEAN:
6900 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6903 return conv_arg_class;
6907 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6908 MonoMarshalSpec *spec,
6909 int conv_arg, MonoType **conv_arg_type,
6910 MarshalAction action)
6914 case MARSHAL_ACTION_CONV_IN:
6916 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6918 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6921 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6922 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6924 *conv_arg_type = &conv_arg_class->this_arg;
6926 *conv_arg_type = &conv_arg_class->byval_arg;
6932 MonoMethodBuilder *mb = m->mb;
6935 case MARSHAL_ACTION_CONV_IN: {
6936 MonoType *local_type;
6938 guint8 ldc_op = CEE_LDC_I4_1;
6940 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6942 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6944 *conv_arg_type = local_type;
6945 conv_arg = mono_mb_add_local (mb, local_type);
6947 mono_mb_emit_ldarg (mb, argnum);
6949 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6950 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6951 mono_mb_emit_byte (mb, ldc_op);
6952 mono_mb_emit_stloc (mb, conv_arg);
6953 mono_mb_patch_branch (mb, label_false);
6958 case MARSHAL_ACTION_CONV_OUT:
6960 int label_false, label_end;
6964 mono_mb_emit_ldarg (mb, argnum);
6965 mono_mb_emit_ldloc (mb, conv_arg);
6967 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6968 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6970 label_end = mono_mb_emit_branch (mb, CEE_BR);
6971 mono_mb_patch_branch (mb, label_false);
6972 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6973 mono_mb_patch_branch (mb, label_end);
6975 mono_mb_emit_byte (mb, CEE_STIND_I1);
6979 case MARSHAL_ACTION_PUSH:
6981 mono_mb_emit_ldloc_addr (mb, conv_arg);
6983 mono_mb_emit_ldloc (mb, conv_arg);
6985 mono_mb_emit_ldarg (mb, argnum);
6988 case MARSHAL_ACTION_CONV_RESULT:
6989 /* maybe we need to make sure that it fits within 8 bits */
6990 mono_mb_emit_stloc (mb, 3);
6993 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6994 MonoClass* conv_arg_class = mono_defaults.int32_class;
6995 guint8 ldop = CEE_LDIND_I4;
6996 int label_null, label_false;
6998 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6999 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7002 *conv_arg_type = &conv_arg_class->this_arg;
7004 *conv_arg_type = &conv_arg_class->byval_arg;
7007 mono_mb_emit_ldarg (mb, argnum);
7011 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7012 mono_mb_emit_ldarg (mb, argnum);
7013 mono_mb_emit_byte (mb, ldop);
7017 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7018 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7019 mono_mb_emit_stloc (mb, conv_arg);
7020 mono_mb_patch_branch (mb, label_false);
7023 mono_mb_patch_branch (mb, label_null);
7027 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7028 guint8 stop = CEE_STIND_I4;
7029 guint8 ldc_op = CEE_LDC_I4_1;
7030 int label_null,label_false, label_end;;
7035 switch (spec->native) {
7036 case MONO_NATIVE_I1:
7037 case MONO_NATIVE_U1:
7038 stop = CEE_STIND_I1;
7040 case MONO_NATIVE_VARIANTBOOL:
7041 stop = CEE_STIND_I2;
7042 ldc_op = CEE_LDC_I4_M1;
7050 mono_mb_emit_ldarg (mb, argnum);
7051 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7053 mono_mb_emit_ldarg (mb, argnum);
7054 mono_mb_emit_ldloc (mb, conv_arg);
7056 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7057 mono_mb_emit_byte (mb, ldc_op);
7058 label_end = mono_mb_emit_branch (mb, CEE_BR);
7060 mono_mb_patch_branch (mb, label_false);
7061 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7062 mono_mb_patch_branch (mb, label_end);
7064 mono_mb_emit_byte (mb, stop);
7065 mono_mb_patch_branch (mb, label_null);
7070 g_assert_not_reached ();
7077 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7078 MonoMarshalSpec *spec, int conv_arg,
7079 MonoType **conv_arg_type, MarshalAction action)
7082 MonoMethodBuilder *mb = m->mb;
7085 case MARSHAL_ACTION_CONV_IN:
7086 /* MS seems to allow this in some cases, ie. bxc #158 */
7088 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7089 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7090 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7095 case MARSHAL_ACTION_PUSH:
7096 mono_mb_emit_ldarg (mb, argnum);
7099 case MARSHAL_ACTION_CONV_RESULT:
7100 /* no conversions necessary */
7101 mono_mb_emit_stloc (mb, 3);
7112 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7113 MonoMarshalSpec *spec, int conv_arg,
7114 MonoType **conv_arg_type, MarshalAction action)
7117 MonoMethodBuilder *mb = m->mb;
7120 case MARSHAL_ACTION_PUSH:
7121 /* fixme: dont know how to marshal that. We cant simply
7122 * convert it to a one byte UTF8 character, because an
7123 * unicode character may need more that one byte in UTF8 */
7124 mono_mb_emit_ldarg (mb, argnum);
7127 case MARSHAL_ACTION_CONV_RESULT:
7128 /* fixme: we need conversions here */
7129 mono_mb_emit_stloc (mb, 3);
7140 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7141 MonoMarshalSpec *spec, int conv_arg,
7142 MonoType **conv_arg_type, MarshalAction action)
7145 MonoMethodBuilder *mb = m->mb;
7148 case MARSHAL_ACTION_PUSH:
7149 mono_mb_emit_ldarg (mb, argnum);
7152 case MARSHAL_ACTION_CONV_RESULT:
7153 /* no conversions necessary */
7154 mono_mb_emit_stloc (mb, 3);
7165 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7166 MonoMarshalSpec *spec, int conv_arg,
7167 MonoType **conv_arg_type, MarshalAction action)
7169 /* Ensure that we have marshalling info for this param */
7170 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7172 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7173 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7175 if (spec && spec->native == MONO_NATIVE_ASANY)
7176 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7179 case MONO_TYPE_VALUETYPE:
7180 if (t->data.klass == mono_defaults.handleref_class)
7181 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7184 case MONO_TYPE_STRING:
7185 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7186 case MONO_TYPE_CLASS:
7187 case MONO_TYPE_OBJECT:
7188 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7189 if (spec && spec->native == MONO_NATIVE_STRUCT)
7190 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7193 #if !defined(DISABLE_COM)
7194 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7195 spec->native == MONO_NATIVE_IDISPATCH ||
7196 spec->native == MONO_NATIVE_INTERFACE))
7197 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7198 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7199 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7200 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7201 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7204 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7205 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7206 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7208 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7209 case MONO_TYPE_ARRAY:
7210 case MONO_TYPE_SZARRAY:
7211 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7212 case MONO_TYPE_BOOLEAN:
7213 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7215 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7216 case MONO_TYPE_CHAR:
7217 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7230 case MONO_TYPE_FNPTR:
7231 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7232 case MONO_TYPE_GENERICINST:
7233 if (mono_type_generic_inst_is_valuetype (t))
7234 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7236 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7244 * mono_marshal_emit_native_wrapper:
7245 * @image: the image to use for looking up custom marshallers
7246 * @sig: The signature of the native function
7247 * @piinfo: Marshalling information
7248 * @mspecs: Marshalling information
7249 * @aot: whenever the created method will be compiled by the AOT compiler
7250 * @method: if non-NULL, the pinvoke method to call
7251 * @check_exceptions: Whenever to check for pending exceptions after the native call
7252 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7254 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7257 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)
7259 EmitMarshalContext m;
7260 MonoMethodSignature *csig;
7262 MonoExceptionClause *clause;
7263 int i, argnum, *tmp_locals;
7264 int type, param_shift = 0;
7265 static MonoMethodSignature *get_last_error_sig = NULL;
7266 int coop_gc_stack_dummy, coop_gc_var, coop_unblocked_var;
7269 memset (&m, 0, sizeof (m));
7274 /* we copy the signature, so that we can set pinvoke to 0 */
7276 /* The function address is passed as the first argument */
7277 g_assert (!sig->hasthis);
7280 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7288 /* we allocate local for use with emit_struct_conv() */
7289 /* allocate local 0 (pointer) src_ptr */
7290 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7291 /* allocate local 1 (pointer) dst_ptr */
7292 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7293 /* allocate local 2 (boolean) delete_old */
7294 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7296 /* delete_old = FALSE */
7297 mono_mb_emit_icon (mb, 0);
7298 mono_mb_emit_stloc (mb, 2);
7300 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7301 /* allocate local 3 to store the return value */
7302 mono_mb_add_local (mb, sig->ret);
7305 if (mono_threads_is_coop_enabled ()) {
7306 /* local 4, dummy local used to get a stack address for suspend funcs */
7307 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7308 /* local 5, the local to be used when calling the suspend funcs */
7309 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7310 coop_unblocked_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7312 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
7313 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7316 if (MONO_TYPE_ISSTRUCT (sig->ret))
7317 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7319 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7320 /* Return type custom marshaling */
7322 * Since we can't determine the return type of the unmanaged function,
7323 * we assume it returns a pointer, and pass that pointer to
7324 * MarshalNativeToManaged.
7326 csig->ret = &mono_defaults.int_class->byval_arg;
7329 /* we first do all conversions */
7330 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7331 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7333 for (i = 0; i < sig->param_count; i ++) {
7334 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7337 // In coop mode need to register blocking state during native call
7338 if (mono_threads_is_coop_enabled ()) {
7339 // Perform an extra, early lookup of the function address, so any exceptions
7340 // potentially resulting from the lookup occur before entering blocking mode.
7341 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7342 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7343 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7344 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7347 clause->try_offset = mono_mb_get_label (mb);
7349 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7350 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7351 mono_mb_emit_stloc (mb, coop_gc_var);
7354 /* push all arguments */
7357 mono_mb_emit_byte (mb, CEE_LDARG_0);
7359 for (i = 0; i < sig->param_count; i++) {
7360 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7363 /* call the native method */
7365 mono_mb_emit_byte (mb, CEE_LDARG_0);
7366 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7367 mono_mb_emit_byte (mb, CEE_LDIND_I);
7368 mono_mb_emit_calli (mb, csig);
7369 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7371 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7373 g_assert_not_reached ();
7378 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7379 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7380 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7381 mono_mb_emit_calli (mb, csig);
7383 mono_mb_emit_native_call (mb, csig, func);
7387 /* Set LastError if needed */
7388 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7389 if (!get_last_error_sig) {
7390 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7391 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7392 get_last_error_sig->pinvoke = 1;
7397 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7398 * clobber its value.
7400 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7401 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7403 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7407 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7408 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7409 mono_class_init (klass);
7410 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7411 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7413 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7414 mono_mb_emit_stloc (mb, m.vtaddr_var);
7418 /* Unblock before converting the result, since that can involve calls into the runtime */
7419 if (mono_threads_is_coop_enabled ()) {
7420 mono_mb_emit_ldloc (mb, coop_gc_var);
7421 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7422 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7423 mono_mb_emit_icon (mb, 1);
7424 mono_mb_emit_stloc (mb, coop_unblocked_var);
7427 /* convert the result */
7428 if (!sig->ret->byref) {
7429 MonoMarshalSpec *spec = mspecs [0];
7430 type = sig->ret->type;
7432 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7433 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7437 case MONO_TYPE_VOID:
7439 case MONO_TYPE_VALUETYPE:
7440 klass = sig->ret->data.klass;
7441 if (klass->enumtype) {
7442 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7445 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7459 case MONO_TYPE_FNPTR:
7460 case MONO_TYPE_STRING:
7461 case MONO_TYPE_CLASS:
7462 case MONO_TYPE_OBJECT:
7463 case MONO_TYPE_BOOLEAN:
7464 case MONO_TYPE_ARRAY:
7465 case MONO_TYPE_SZARRAY:
7466 case MONO_TYPE_CHAR:
7468 case MONO_TYPE_GENERICINST:
7469 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7471 case MONO_TYPE_TYPEDBYREF:
7473 g_warning ("return type 0x%02x unknown", sig->ret->type);
7474 g_assert_not_reached ();
7478 mono_mb_emit_stloc (mb, 3);
7481 if (mono_threads_is_coop_enabled ()) {
7484 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7486 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7487 clause->handler_offset = mono_mb_get_label (mb);
7489 mono_mb_emit_ldloc (mb, coop_unblocked_var);
7490 mono_mb_emit_icon (mb, 1);
7491 pos = mono_mb_emit_branch (mb, CEE_BEQ);
7493 mono_mb_emit_ldloc (mb, coop_gc_var);
7494 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7495 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7497 mono_mb_patch_branch (mb, pos);
7499 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7501 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7503 mono_mb_patch_branch (mb, leave_pos);
7507 * Need to call this after converting the result since MONO_VTADDR needs
7508 * to be adjacent to the call instruction.
7510 if (check_exceptions)
7511 emit_thread_interrupt_checkpoint (mb);
7513 /* we need to convert byref arguments back and free string arrays */
7514 for (i = 0; i < sig->param_count; i++) {
7515 MonoType *t = sig->params [i];
7516 MonoMarshalSpec *spec = mspecs [i + 1];
7518 argnum = i + param_shift;
7520 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7521 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7526 case MONO_TYPE_STRING:
7527 case MONO_TYPE_VALUETYPE:
7528 case MONO_TYPE_CLASS:
7529 case MONO_TYPE_OBJECT:
7530 case MONO_TYPE_SZARRAY:
7531 case MONO_TYPE_BOOLEAN:
7532 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7539 if (!MONO_TYPE_IS_VOID(sig->ret))
7540 mono_mb_emit_ldloc (mb, 3);
7542 mono_mb_emit_byte (mb, CEE_RET);
7544 if (mono_threads_is_coop_enabled ()) {
7545 mono_mb_set_clauses (mb, 1, clause);
7548 #endif /* DISABLE_JIT */
7551 * mono_marshal_get_native_wrapper:
7552 * @method: The MonoMethod to wrap.
7553 * @check_exceptions: Whenever to check for pending exceptions
7555 * generates IL code for the pinvoke wrapper (the generated method
7556 * calls the unmanaged code in piinfo->addr)
7557 * The wrapper info for the wrapper is a WrapperInfo structure.
7560 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7562 MonoMethodSignature *sig, *csig;
7563 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7564 MonoMethodBuilder *mb;
7565 MonoMarshalSpec **mspecs;
7568 gboolean pinvoke = FALSE;
7571 const char *exc_class = "MissingMethodException";
7572 const char *exc_arg = NULL;
7575 g_assert (method != NULL);
7576 g_assert (mono_method_signature (method)->pinvoke);
7578 GHashTable **cache_ptr;
7581 if (check_exceptions)
7582 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7584 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7586 if (check_exceptions)
7587 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7589 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7592 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7594 if ((res = mono_marshal_find_in_cache (cache, method)))
7597 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7598 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7602 return mono_cominterop_get_native_wrapper (method);
7604 g_assert_not_reached ();
7608 sig = mono_method_signature (method);
7610 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7611 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7614 if (!piinfo->addr) {
7616 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7617 exc_arg = "Method contains unsupported native code";
7619 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7621 piinfo->addr = mono_lookup_internal_call (method);
7625 /* hack - redirect certain string constructors to CreateString */
7626 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7627 g_assert (!pinvoke);
7628 g_assert (method->string_ctor);
7629 g_assert (sig->hasthis);
7631 /* CreateString returns a value */
7632 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7633 csig->ret = &mono_defaults.string_class->byval_arg;
7637 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7638 if (!strcmp ("CreateString", res->name) &&
7639 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7642 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7643 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7645 /* create a wrapper to preserve .ctor in stack trace */
7646 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7649 mono_mb_emit_byte (mb, CEE_LDARG_0);
7650 for (i = 1; i <= csig->param_count; i++)
7651 mono_mb_emit_ldarg (mb, i);
7652 mono_mb_emit_managed_call (mb, res, NULL);
7653 mono_mb_emit_byte (mb, CEE_RET);
7656 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7657 info->d.string_ctor.method = method;
7659 /* use native_wrapper_cache because internal calls are looked up there */
7660 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7661 csig->param_count + 1, info, NULL);
7668 /* exception will be thrown */
7669 piinfo->addr = NULL;
7670 g_warning ("cannot find CreateString for .ctor");
7673 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7675 mb->method->save_lmf = 1;
7678 * In AOT mode and embedding scenarios, it is possible that the icall is not
7679 * registered in the runtime doing the AOT compilation.
7681 if (!piinfo->addr && !aot) {
7683 mono_mb_emit_exception (mb, exc_class, exc_arg);
7685 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7686 info->d.managed_to_native.method = method;
7688 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7690 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7691 csig->param_count + 16, info, NULL);
7697 /* internal calls: we simply push all arguments and call the method (no conversions) */
7698 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7700 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7702 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7704 /* hack - string constructors returns a value */
7705 if (method->string_ctor)
7706 csig->ret = &mono_defaults.string_class->byval_arg;
7713 * Add a null check since public icalls can be called with 'call' which
7714 * does no such check.
7716 mono_mb_emit_byte (mb, CEE_LDARG_0);
7717 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7718 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7719 mono_mb_patch_branch (mb, pos);
7721 mono_mb_emit_byte (mb, CEE_LDARG_0);
7724 for (i = 0; i < sig->param_count; i++)
7725 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7728 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7729 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7730 mono_mb_emit_calli (mb, csig);
7732 g_assert (piinfo->addr);
7733 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7735 if (check_exceptions)
7736 emit_thread_interrupt_checkpoint (mb);
7737 mono_mb_emit_byte (mb, CEE_RET);
7739 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7740 info->d.managed_to_native.method = method;
7742 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7744 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7753 g_assert (piinfo->addr);
7756 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7757 mono_method_get_marshal_info (method, mspecs);
7759 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7761 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7762 info->d.managed_to_native.method = method;
7764 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7766 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7771 for (i = sig->param_count; i >= 0; i--)
7773 mono_metadata_free_marshal_spec (mspecs [i]);
7777 /* mono_method_print_code (res); */
7783 * mono_marshal_get_native_func_wrapper:
7784 * @image: The image to use for memory allocation and for looking up custom marshallers.
7785 * @sig: The signature of the function
7786 * @func: The native function to wrap
7788 * Returns a wrapper method around native functions, similar to the pinvoke
7792 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7793 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7795 MonoMethodSignature *csig;
7797 SignaturePointerPair key, *new_key;
7798 MonoMethodBuilder *mb;
7807 // Generic types are not safe to place in MonoImage caches.
7808 g_assert (!sig->is_inflated);
7810 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7811 if ((res = mono_marshal_find_in_cache (cache, &key)))
7814 name = g_strdup_printf ("wrapper_native_%p", func);
7815 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7816 mb->method->save_lmf = 1;
7819 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7822 csig = mono_metadata_signature_dup_full (image, sig);
7825 new_key = g_new (SignaturePointerPair,1);
7826 new_key->sig = csig;
7827 new_key->pointer = func;
7829 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7835 mono_marshal_set_wrapper_info (res, NULL);
7841 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7845 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7847 MonoMethodSignature *sig, *csig;
7848 MonoMethodBuilder *mb;
7853 MonoMethodPInvoke mpiinfo;
7854 MonoMethodPInvoke *piinfo = &mpiinfo;
7855 MonoMarshalSpec **mspecs;
7856 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7857 MonoImage *image = invoke->klass->image;
7860 // FIXME: include UnmanagedFunctionPointerAttribute info
7863 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7865 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7867 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7870 memset (&mpiinfo, 0, sizeof (mpiinfo));
7871 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7873 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7874 mono_method_get_marshal_info (invoke, mspecs);
7875 /* Freed below so don't alloc from mempool */
7876 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7879 name = g_strdup_printf ("wrapper_aot_native");
7880 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7881 mb->method->save_lmf = 1;
7884 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7887 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7888 info->d.managed_to_native.method = invoke;
7890 g_assert (!sig->hasthis);
7891 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7893 res = mono_mb_create_and_cache_full (cache, invoke,
7894 mb, csig, csig->param_count + 16,
7898 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7900 mono_metadata_free_marshal_spec (mspecs [i]);
7908 * mono_marshal_emit_managed_wrapper:
7910 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7911 * the delegate which wraps the managed method to be called. For closed delegates,
7912 * it could have fewer parameters than the method it wraps.
7913 * THIS_LOC is the memory location where the target of the delegate is stored.
7916 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7919 MonoMethodSignature *sig, *csig;
7925 /* we first do all conversions */
7926 for (i = 0; i < sig->param_count; i ++) {
7927 MonoType *t = sig->params [i];
7930 case MONO_TYPE_OBJECT:
7931 case MONO_TYPE_CLASS:
7932 case MONO_TYPE_VALUETYPE:
7933 case MONO_TYPE_ARRAY:
7934 case MONO_TYPE_SZARRAY:
7935 case MONO_TYPE_STRING:
7936 case MONO_TYPE_BOOLEAN:
7937 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7941 if (!sig->ret->byref) {
7942 switch (sig->ret->type) {
7943 case MONO_TYPE_STRING:
7944 csig->ret = &mono_defaults.int_class->byval_arg;
7951 MonoMethodSignature *sig, *csig;
7952 MonoExceptionClause *clause;
7955 gboolean closed = FALSE;
7960 /* allocate local 0 (pointer) src_ptr */
7961 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7962 /* allocate local 1 (pointer) dst_ptr */
7963 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7964 /* allocate local 2 (boolean) delete_old */
7965 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7967 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7968 /* Closed delegate */
7969 g_assert (sig->param_count == invoke_sig->param_count + 1);
7971 /* Use a new signature without the first argument */
7972 sig = mono_metadata_signature_dup (sig);
7973 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7974 sig->param_count --;
7977 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7978 /* allocate local 3 to store the return value */
7979 mono_mb_add_local (mb, sig->ret);
7982 if (MONO_TYPE_ISSTRUCT (sig->ret))
7983 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7987 * mono_jit_attach ();
7991 * ret = method (...);
7993 * mono_jit_detach ();
7999 if (mono_threads_is_coop_enabled ()) {
8000 clause = g_new0 (MonoExceptionClause, 1);
8001 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8004 mono_mb_emit_icon (mb, 0);
8005 mono_mb_emit_stloc (mb, 2);
8007 if (mono_threads_is_coop_enabled ()) {
8009 clause->try_offset = mono_mb_get_label (mb);
8013 * Might need to attach the thread to the JIT or change the
8014 * domain for the callback.
8016 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
8018 * mono_jit_attach ();
8020 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8021 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8023 /* <interrupt check> */
8024 emit_thread_interrupt_checkpoint (mb);
8026 /* we first do all conversions */
8027 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8028 for (i = 0; i < sig->param_count; i ++) {
8029 MonoType *t = sig->params [i];
8032 case MONO_TYPE_OBJECT:
8033 case MONO_TYPE_CLASS:
8034 case MONO_TYPE_VALUETYPE:
8035 case MONO_TYPE_ARRAY:
8036 case MONO_TYPE_SZARRAY:
8037 case MONO_TYPE_STRING:
8038 case MONO_TYPE_BOOLEAN:
8039 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8049 if (target_handle) {
8050 mono_mb_emit_icon (mb, (gint32)target_handle);
8051 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8054 g_assert_not_reached ();
8056 } else if (closed) {
8057 mono_mb_emit_icon (mb, (gint32)target_handle);
8058 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8061 for (i = 0; i < sig->param_count; i++) {
8062 MonoType *t = sig->params [i];
8064 if (tmp_locals [i]) {
8066 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8068 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8071 mono_mb_emit_ldarg (mb, i);
8074 /* ret = method (...) */
8075 mono_mb_emit_managed_call (mb, method, NULL);
8077 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8078 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8079 mono_class_init (klass);
8080 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8081 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8082 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8083 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8084 mono_mb_emit_stloc (mb, m->vtaddr_var);
8088 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8089 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8090 } else if (!sig->ret->byref) {
8091 switch (sig->ret->type) {
8092 case MONO_TYPE_VOID:
8094 case MONO_TYPE_BOOLEAN:
8097 case MONO_TYPE_CHAR:
8109 case MONO_TYPE_OBJECT:
8110 mono_mb_emit_stloc (mb, 3);
8112 case MONO_TYPE_STRING:
8113 csig->ret = &mono_defaults.int_class->byval_arg;
8114 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8116 case MONO_TYPE_VALUETYPE:
8117 case MONO_TYPE_CLASS:
8118 case MONO_TYPE_SZARRAY:
8119 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8122 g_warning ("return type 0x%02x unknown", sig->ret->type);
8123 g_assert_not_reached ();
8126 mono_mb_emit_stloc (mb, 3);
8129 /* Convert byref arguments back */
8130 for (i = 0; i < sig->param_count; i ++) {
8131 MonoType *t = sig->params [i];
8132 MonoMarshalSpec *spec = mspecs [i + 1];
8134 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8135 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8137 else if (t->byref) {
8139 case MONO_TYPE_CLASS:
8140 case MONO_TYPE_VALUETYPE:
8141 case MONO_TYPE_OBJECT:
8142 case MONO_TYPE_STRING:
8143 case MONO_TYPE_BOOLEAN:
8144 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8150 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8151 /* The [Out] information is encoded in the delegate signature */
8153 case MONO_TYPE_SZARRAY:
8154 case MONO_TYPE_CLASS:
8155 case MONO_TYPE_VALUETYPE:
8156 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8159 g_assert_not_reached ();
8164 if (mono_threads_is_coop_enabled ()) {
8165 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8168 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8169 clause->handler_offset = mono_mb_get_label (mb);
8173 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8175 * mono_jit_detach ();
8177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8178 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8180 if (mono_threads_is_coop_enabled ()) {
8181 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8183 /* } [endfinally] */
8184 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8186 mono_mb_patch_branch (mb, leave_pos);
8190 if (m->retobj_var) {
8191 mono_mb_emit_ldloc (mb, m->retobj_var);
8192 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8193 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8196 if (!MONO_TYPE_IS_VOID(sig->ret))
8197 mono_mb_emit_ldloc (mb, 3);
8198 mono_mb_emit_byte (mb, CEE_RET);
8201 if (mono_threads_is_coop_enabled ()) {
8202 mono_mb_set_clauses (mb, 1, clause);
8211 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8213 MonoMethodSignature *sig;
8218 * Under windows, delegates passed to native code must use the STDCALL
8219 * calling convention.
8221 csig->call_convention = MONO_CALL_STDCALL;
8224 sig = mono_method_signature (method);
8226 /* Change default calling convention if needed */
8227 /* Why is this a modopt ? */
8228 if (sig->ret && sig->ret->num_mods) {
8229 for (i = 0; i < sig->ret->num_mods; ++i) {
8231 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8232 g_assert (mono_error_ok (&error));
8233 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8234 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8235 csig->call_convention = MONO_CALL_C;
8236 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8237 csig->call_convention = MONO_CALL_STDCALL;
8238 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8239 csig->call_convention = MONO_CALL_FASTCALL;
8240 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8241 csig->call_convention = MONO_CALL_THISCALL;
8248 * generates IL code to call managed methods from unmanaged code
8249 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8252 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8255 MonoMethodSignature *sig, *csig, *invoke_sig;
8256 MonoMethodBuilder *mb;
8257 MonoMethod *res, *invoke;
8258 MonoMarshalSpec **mspecs;
8259 MonoMethodPInvoke piinfo;
8262 EmitMarshalContext m;
8264 g_assert (method != NULL);
8265 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8268 * FIXME: Should cache the method+delegate type pair, since the same method
8269 * could be called with different delegates, thus different marshalling
8272 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8274 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8277 invoke = mono_get_delegate_invoke (delegate_klass);
8278 invoke_sig = mono_method_signature (invoke);
8280 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8281 mono_method_get_marshal_info (invoke, mspecs);
8283 sig = mono_method_signature (method);
8285 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8287 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8288 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8290 /* we copy the signature, so that we can modify it */
8292 /* Need to free this later */
8293 csig = mono_metadata_signature_dup (invoke_sig);
8295 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8299 memset (&m, 0, sizeof (m));
8305 m.image = method->klass->image;
8307 mono_marshal_set_callconv_from_modopt (invoke, csig);
8309 /* The attribute is only available in Net 2.0 */
8310 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8311 MonoCustomAttrInfo *cinfo;
8312 MonoCustomAttrEntry *attr;
8315 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8316 * contents of the attribute without constructing it, as that might not be
8317 * possible when running in cross-compiling mode.
8319 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8320 mono_error_assert_ok (&error);
8323 for (i = 0; i < cinfo->num_attrs; ++i) {
8324 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8325 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8326 attr = &cinfo->attrs [i];
8332 MonoArray *typed_args, *named_args;
8333 CattrNamedArg *arginfo;
8337 MonoBoolean set_last_error = 0;
8340 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8341 g_assert (mono_error_ok (&error));
8342 g_assert (mono_array_length (typed_args) == 1);
8345 o = mono_array_get (typed_args, MonoObject*, 0);
8346 call_conv = *(gint32*)mono_object_unbox (o);
8349 for (i = 0; i < mono_array_length (named_args); ++i) {
8350 CattrNamedArg *narg = &arginfo [i];
8352 o = mono_array_get (named_args, MonoObject*, i);
8354 g_assert (narg->field);
8355 if (!strcmp (narg->field->name, "CharSet")) {
8356 charset = *(gint32*)mono_object_unbox (o);
8357 } else if (!strcmp (narg->field->name, "SetLastError")) {
8358 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8359 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8360 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8361 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8362 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8364 g_assert_not_reached ();
8370 memset (&piinfo, 0, sizeof (piinfo));
8372 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8374 csig->call_convention = call_conv - 1;
8377 if (cinfo && !cinfo->cached)
8378 mono_custom_attrs_free (cinfo);
8381 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8383 if (!target_handle) {
8386 // FIXME: Associate it with the method+delegate_klass pair
8387 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8388 info->d.native_to_managed.method = method;
8389 info->d.native_to_managed.klass = delegate_klass;
8391 res = mono_mb_create_and_cache_full (cache, method,
8392 mb, csig, sig->param_count + 16,
8398 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8402 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8404 mono_metadata_free_marshal_spec (mspecs [i]);
8407 /* mono_method_print_code (res); */
8413 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8417 MonoMethodSignature *sig;
8418 MonoMethodBuilder *mb;
8423 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8425 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8428 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8429 MonoMethodSignature *csig;
8430 MonoMarshalSpec **mspecs;
8431 EmitMarshalContext m;
8433 sig = mono_method_signature (method);
8434 g_assert (!sig->hasthis);
8436 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8437 mono_method_get_marshal_info (method, mspecs);
8439 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8440 csig = mono_metadata_signature_dup_full (image, sig);
8444 memset (&m, 0, sizeof (m));
8452 mono_marshal_set_callconv_from_modopt (method, csig);
8454 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8456 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8461 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8464 for (i = sig->param_count; i >= 0; i--)
8466 mono_metadata_free_marshal_spec (mspecs [i]);
8469 return mono_compile_method (method);
8472 sig = mono_method_signature (method);
8473 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8475 param_count = sig->param_count + sig->hasthis;
8477 for (i = 0; i < param_count; i++)
8478 mono_mb_emit_ldarg (mb, i);
8480 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8481 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8483 mono_mb_emit_op (mb, CEE_CALL, method);
8484 mono_mb_emit_byte (mb, CEE_RET);
8489 method = mono_mb_create (mb, sig, param_count, NULL);
8492 return mono_compile_method (method);
8498 * The code directly following this is the cache hit, value positive branch
8500 * This function takes a new method builder with 0 locals and adds two locals
8501 * to create multiple out-branches and the fall through state of having the object
8502 * on the stack after a cache miss
8505 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8506 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8507 MonoMethodBuilder *mb)
8511 /* allocate local 0 (pointer) obj_vtable */
8512 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8513 /* allocate local 1 (pointer) cached_vtable */
8514 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8517 mono_mb_emit_ldarg (mb, obj_arg_position);
8518 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8520 /*obj_vtable = obj->vtable;*/
8521 mono_mb_emit_ldarg (mb, obj_arg_position);
8522 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8523 mono_mb_emit_byte (mb, CEE_LDIND_I);
8524 mono_mb_emit_stloc (mb, 0);
8526 /* cached_vtable = *cache*/
8527 mono_mb_emit_ldarg (mb, cache_arg_position);
8528 mono_mb_emit_byte (mb, CEE_LDIND_I);
8529 mono_mb_emit_stloc (mb, 1);
8531 mono_mb_emit_ldloc (mb, 1);
8532 mono_mb_emit_byte (mb, CEE_LDC_I4);
8533 mono_mb_emit_i4 (mb, ~0x1);
8534 mono_mb_emit_byte (mb, CEE_CONV_I);
8535 mono_mb_emit_byte (mb, CEE_AND);
8536 mono_mb_emit_ldloc (mb, 0);
8537 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8538 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8540 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8541 mono_mb_emit_ldloc (mb, 1);
8542 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8543 mono_mb_emit_byte (mb, CEE_CONV_U);
8544 mono_mb_emit_byte (mb, CEE_AND);
8545 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8546 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8549 mono_mb_patch_branch (mb, cache_miss_pos);
8552 mono_mb_emit_ldarg (mb, obj_arg_position);
8553 mono_mb_emit_ldarg (mb, class_arg_position);
8554 mono_mb_emit_ldarg (mb, cache_arg_position);
8555 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8558 #endif /* DISABLE_JIT */
8561 * This does the equivalent of mono_object_castclass_with_cache.
8562 * The wrapper info for the wrapper is a WrapperInfo structure.
8565 mono_marshal_get_castclass_with_cache (void)
8567 static MonoMethod *cached;
8569 MonoMethodBuilder *mb;
8570 MonoMethodSignature *sig;
8571 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8574 const int obj_arg_position = 0;
8575 const int class_arg_position = 1;
8576 const int cache_arg_position = 2;
8581 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8582 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8583 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8584 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8585 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8586 sig->ret = &mono_defaults.object_class->byval_arg;
8590 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8591 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8592 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8595 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8596 mono_mb_emit_ldarg (mb, obj_arg_position);
8597 mono_mb_emit_byte (mb, CEE_RET);
8600 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8601 mono_mb_patch_branch (mb, invalid_cast_pos);
8602 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8605 mono_mb_patch_branch (mb, return_null_pos);
8606 mono_mb_emit_byte (mb, CEE_LDNULL);
8607 mono_mb_emit_byte (mb, CEE_RET);
8608 #endif /* DISABLE_JIT */
8610 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8611 res = mono_mb_create (mb, sig, 8, info);
8614 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8615 mono_free_method (res);
8616 mono_metadata_free_method_signature (sig);
8624 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8627 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8628 mono_error_raise_exception (&error); /* FIXME don't raise here */
8630 #ifndef DISABLE_REMOTING
8631 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8635 uintptr_t cache_update = (uintptr_t)obj->vtable;
8637 cache_update = cache_update | 0x1;
8639 *cache = cache_update;
8645 * This does the equivalent of mono_object_isinst_with_cache.
8646 * The wrapper info for the wrapper is a WrapperInfo structure.
8649 mono_marshal_get_isinst_with_cache (void)
8651 static MonoMethod *cached;
8653 MonoMethodBuilder *mb;
8654 MonoMethodSignature *sig;
8655 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8658 const int obj_arg_position = 0;
8659 const int class_arg_position = 1;
8660 const int cache_arg_position = 2;
8665 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8666 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8668 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8670 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8672 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8673 sig->ret = &mono_defaults.object_class->byval_arg;
8677 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8678 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8679 // Return the object gotten via the slow path.
8680 mono_mb_emit_byte (mb, CEE_RET);
8683 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8684 mono_mb_patch_branch (mb, return_null_pos);
8685 mono_mb_emit_byte (mb, CEE_LDNULL);
8686 mono_mb_emit_byte (mb, CEE_RET);
8689 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8690 mono_mb_emit_ldarg (mb, obj_arg_position);
8691 mono_mb_emit_byte (mb, CEE_RET);
8694 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8695 res = mono_mb_create (mb, sig, 8, info);
8698 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8699 mono_free_method (res);
8700 mono_metadata_free_method_signature (sig);
8708 * mono_marshal_get_isinst:
8709 * @klass: the type of the field
8711 * This method generates a function which can be used to check if an object is
8712 * an instance of the given type, icluding the case where the object is a proxy.
8713 * The generated function has the following signature:
8714 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8717 mono_marshal_get_isinst (MonoClass *klass)
8719 static MonoMethodSignature *isint_sig = NULL;
8723 int pos_was_ok, pos_end;
8724 #ifndef DISABLE_REMOTING
8725 int pos_end2, pos_failed;
8728 MonoMethodBuilder *mb;
8730 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8731 if ((res = mono_marshal_find_in_cache (cache, klass)))
8735 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8736 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8737 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8738 isint_sig->pinvoke = 0;
8741 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8742 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8745 mb->method->save_lmf = 1;
8748 /* check if the object is a proxy that needs special cast */
8749 mono_mb_emit_ldarg (mb, 0);
8750 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8751 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8753 /* The result of MONO_CISINST can be:
8754 0) the type check succeeded
8755 1) the type check did not succeed
8756 2) a CanCastTo call is needed */
8757 #ifndef DISABLE_REMOTING
8758 mono_mb_emit_byte (mb, CEE_DUP);
8759 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8761 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8762 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8764 /* get the real proxy from the transparent proxy*/
8766 mono_mb_emit_ldarg (mb, 0);
8767 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8768 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8772 mono_mb_patch_branch (mb, pos_failed);
8773 mono_mb_emit_byte (mb, CEE_LDNULL);
8774 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8778 mono_mb_patch_branch (mb, pos_was_ok);
8779 mono_mb_emit_byte (mb, CEE_POP);
8780 mono_mb_emit_ldarg (mb, 0);
8784 mono_mb_patch_branch (mb, pos_end);
8785 mono_mb_patch_branch (mb, pos_end2);
8786 mono_mb_emit_byte (mb, CEE_RET);
8788 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8792 mono_mb_emit_byte (mb, CEE_LDNULL);
8793 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8797 mono_mb_patch_branch (mb, pos_was_ok);
8798 mono_mb_emit_ldarg (mb, 0);
8802 mono_mb_patch_branch (mb, pos_end);
8803 mono_mb_emit_byte (mb, CEE_RET);
8804 #endif /* DISABLE_REMOTING */
8805 #endif /* DISABLE_JIT */
8807 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8808 info->d.proxy.klass = klass;
8809 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8816 * mono_marshal_get_castclass:
8817 * @klass: the type of the field
8819 * This method generates a function which can be used to cast an object to
8820 * an instance of the given type, icluding the case where the object is a proxy.
8821 * The generated function has the following signature:
8822 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8823 * The wrapper info for the wrapper is a WrapperInfo structure.
8826 mono_marshal_get_castclass (MonoClass *klass)
8828 static MonoMethodSignature *castclass_sig = NULL;
8831 #ifndef DISABLE_REMOTING
8832 int pos_was_ok, pos_was_ok2;
8835 MonoMethodBuilder *mb;
8838 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8839 if ((res = mono_marshal_find_in_cache (cache, klass)))
8842 if (!castclass_sig) {
8843 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8844 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8845 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8846 castclass_sig->pinvoke = 0;
8849 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8850 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8853 mb->method->save_lmf = 1;
8856 /* check if the object is a proxy that needs special cast */
8857 mono_mb_emit_ldarg (mb, 0);
8858 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8859 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8861 /* The result of MONO_CCASTCLASS can be:
8862 0) the cast is valid
8863 1) cast of unknown proxy type
8864 or an exception if the cast is is invalid
8866 #ifndef DISABLE_REMOTING
8867 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8869 /* get the real proxy from the transparent proxy*/
8871 mono_mb_emit_ldarg (mb, 0);
8872 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8873 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8876 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8879 mono_mb_patch_branch (mb, pos_was_ok);
8880 mono_mb_patch_branch (mb, pos_was_ok2);
8882 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8883 mono_mb_emit_byte (mb, CEE_POP);
8884 #endif /* DISABLE_REMOTING */
8886 mono_mb_emit_ldarg (mb, 0);
8889 mono_mb_emit_byte (mb, CEE_RET);
8890 #endif /* DISABLE_JIT */
8892 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8894 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8902 * mono_marshal_get_struct_to_ptr:
8905 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8906 * The wrapper info for the wrapper is a WrapperInfo structure.
8909 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8911 MonoMethodBuilder *mb;
8912 static MonoMethod *stoptr = NULL;
8916 g_assert (klass != NULL);
8918 mono_marshal_load_type_info (klass);
8920 if (klass->marshal_info->str_to_ptr)
8921 return klass->marshal_info->str_to_ptr;
8924 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8927 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8930 if (klass->blittable) {
8931 mono_mb_emit_byte (mb, CEE_LDARG_1);
8932 mono_mb_emit_byte (mb, CEE_LDARG_0);
8933 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8934 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8935 mono_mb_emit_byte (mb, CEE_PREFIX1);
8936 mono_mb_emit_byte (mb, CEE_CPBLK);
8939 /* allocate local 0 (pointer) src_ptr */
8940 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8941 /* allocate local 1 (pointer) dst_ptr */
8942 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8943 /* allocate local 2 (boolean) delete_old */
8944 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8945 mono_mb_emit_byte (mb, CEE_LDARG_2);
8946 mono_mb_emit_stloc (mb, 2);
8948 /* initialize src_ptr to point to the start of object data */
8949 mono_mb_emit_byte (mb, CEE_LDARG_0);
8950 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8951 mono_mb_emit_stloc (mb, 0);
8953 /* initialize dst_ptr */
8954 mono_mb_emit_byte (mb, CEE_LDARG_1);
8955 mono_mb_emit_stloc (mb, 1);
8957 emit_struct_conv (mb, klass, FALSE);
8960 mono_mb_emit_byte (mb, CEE_RET);
8962 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8963 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8966 mono_marshal_lock ();
8967 if (!klass->marshal_info->str_to_ptr)
8968 klass->marshal_info->str_to_ptr = res;
8970 res = klass->marshal_info->str_to_ptr;
8971 mono_marshal_unlock ();
8976 * mono_marshal_get_ptr_to_struct:
8979 * generates IL code for PtrToStructure (IntPtr src, object structure)
8980 * The wrapper info for the wrapper is a WrapperInfo structure.
8983 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8985 MonoMethodBuilder *mb;
8986 static MonoMethodSignature *ptostr = NULL;
8990 g_assert (klass != NULL);
8992 mono_marshal_load_type_info (klass);
8994 if (klass->marshal_info->ptr_to_str)
8995 return klass->marshal_info->ptr_to_str;
8998 MonoMethodSignature *sig;
9000 /* Create the signature corresponding to
9001 static void PtrToStructure (IntPtr ptr, object structure);
9002 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9003 sig = mono_create_icall_signature ("void ptr object");
9004 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9006 mono_memory_barrier ();
9010 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9013 if (klass->blittable) {
9014 mono_mb_emit_byte (mb, CEE_LDARG_1);
9015 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9016 mono_mb_emit_byte (mb, CEE_LDARG_0);
9017 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9018 mono_mb_emit_byte (mb, CEE_PREFIX1);
9019 mono_mb_emit_byte (mb, CEE_CPBLK);
9022 /* allocate local 0 (pointer) src_ptr */
9023 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9024 /* allocate local 1 (pointer) dst_ptr */
9025 mono_mb_add_local (mb, &klass->this_arg);
9027 /* initialize src_ptr to point to the start of object data */
9028 mono_mb_emit_byte (mb, CEE_LDARG_0);
9029 mono_mb_emit_stloc (mb, 0);
9031 /* initialize dst_ptr */
9032 mono_mb_emit_byte (mb, CEE_LDARG_1);
9033 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9034 mono_mb_emit_stloc (mb, 1);
9036 emit_struct_conv (mb, klass, TRUE);
9039 mono_mb_emit_byte (mb, CEE_RET);
9041 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9042 res = mono_mb_create (mb, ptostr, 0, info);
9045 mono_marshal_lock ();
9046 if (!klass->marshal_info->ptr_to_str)
9047 klass->marshal_info->ptr_to_str = res;
9049 res = klass->marshal_info->ptr_to_str;
9050 mono_marshal_unlock ();
9055 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9056 * This is used to avoid infinite recursion since it is hard to determine where to
9057 * replace a method with its synchronized wrapper, and where not.
9058 * The runtime should execute METHOD instead of the wrapper.
9059 * The wrapper info for the wrapper is a WrapperInfo structure.
9062 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9064 MonoMethodBuilder *mb;
9066 MonoMethodSignature *sig;
9068 MonoGenericContext *ctx = NULL;
9069 MonoGenericContainer *container = NULL;
9071 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9072 ctx = &((MonoMethodInflated*)method)->context;
9073 method = ((MonoMethodInflated*)method)->declaring;
9074 container = mono_method_get_generic_container (method);
9076 container = method->klass->generic_container;
9077 g_assert (container);
9080 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9082 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9083 mono_mb_emit_byte (mb, CEE_RET);
9085 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9087 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9088 info->d.synchronized_inner.method = method;
9089 res = mono_mb_create (mb, sig, 0, info);
9093 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9094 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9100 * generates IL code for the synchronized wrapper: the generated method
9101 * calls METHOD while locking 'this' or the parent type.
9104 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9106 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9107 MonoMethodSignature *sig;
9108 MonoExceptionClause *clause;
9109 MonoMethodBuilder *mb;
9113 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9114 MonoGenericContext *ctx = NULL;
9115 MonoMethod *orig_method = NULL;
9116 MonoGenericContainer *container = NULL;
9120 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9123 /* FIXME: Support generic methods too */
9124 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9125 orig_method = method;
9126 ctx = &((MonoMethodInflated*)method)->context;
9127 method = ((MonoMethodInflated*)method)->declaring;
9128 container = mono_method_get_generic_container (method);
9130 container = method->klass->generic_container;
9131 g_assert (container);
9138 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9139 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9143 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9144 if ((res = mono_marshal_find_in_cache (cache, method)))
9148 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9151 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9153 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9154 info->d.synchronized.method = method;
9157 mb->skip_visibility = 1;
9159 if (!MONO_TYPE_IS_VOID (sig->ret))
9160 ret_local = mono_mb_add_local (mb, sig->ret);
9163 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9164 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9166 /* This will throw the type load exception when the wrapper is compiled */
9167 mono_mb_emit_byte (mb, CEE_LDNULL);
9168 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9169 mono_mb_emit_byte (mb, CEE_POP);
9171 if (!MONO_TYPE_IS_VOID (sig->ret))
9172 mono_mb_emit_ldloc (mb, ret_local);
9173 mono_mb_emit_byte (mb, CEE_RET);
9176 res = mono_mb_create_and_cache_full (cache, method,
9177 mb, sig, sig->param_count + 16, info, NULL);
9185 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9186 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9188 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9189 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9192 mono_marshal_lock ();
9194 if (!enter_method) {
9195 MonoMethodDesc *desc;
9197 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9198 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9199 g_assert (enter_method);
9200 mono_method_desc_free (desc);
9202 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9203 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9204 g_assert (exit_method);
9205 mono_method_desc_free (desc);
9207 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9208 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9209 g_assert (gettypefromhandle_method);
9210 mono_method_desc_free (desc);
9213 mono_marshal_unlock ();
9216 /* Push this or the type object */
9217 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9218 /* We have special handling for this in the JIT */
9219 int index = mono_mb_add_data (mb, method->klass);
9220 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9221 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9222 mono_mb_emit_i4 (mb, index);
9224 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9227 mono_mb_emit_ldarg (mb, 0);
9228 mono_mb_emit_stloc (mb, this_local);
9230 /* Call Monitor::Enter() */
9231 mono_mb_emit_ldloc (mb, this_local);
9232 mono_mb_emit_ldloc_addr (mb, taken_local);
9233 mono_mb_emit_managed_call (mb, enter_method, NULL);
9235 clause->try_offset = mono_mb_get_label (mb);
9237 /* Call the method */
9239 mono_mb_emit_ldarg (mb, 0);
9240 for (i = 0; i < sig->param_count; i++)
9241 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9245 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9246 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9248 mono_mb_emit_managed_call (mb, method, NULL);
9251 if (!MONO_TYPE_IS_VOID (sig->ret))
9252 mono_mb_emit_stloc (mb, ret_local);
9254 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9256 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9257 clause->handler_offset = mono_mb_get_label (mb);
9259 /* Call Monitor::Exit() if needed */
9260 mono_mb_emit_ldloc (mb, taken_local);
9261 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9262 mono_mb_emit_ldloc (mb, this_local);
9263 mono_mb_emit_managed_call (mb, exit_method, NULL);
9264 mono_mb_patch_branch (mb, pos2);
9265 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9267 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9269 mono_mb_patch_branch (mb, pos);
9270 if (!MONO_TYPE_IS_VOID (sig->ret))
9271 mono_mb_emit_ldloc (mb, ret_local);
9272 mono_mb_emit_byte (mb, CEE_RET);
9274 mono_mb_set_clauses (mb, 1, clause);
9279 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9280 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9282 res = mono_mb_create_and_cache_full (cache, method,
9283 mb, sig, sig->param_count + 16, info, NULL);
9292 * the returned method calls 'method' unboxing the this argument
9295 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9297 MonoMethodSignature *sig = mono_method_signature (method);
9299 MonoMethodBuilder *mb;
9304 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9306 if ((res = mono_marshal_find_in_cache (cache, method)))
9309 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9311 g_assert (sig->hasthis);
9314 mono_mb_emit_ldarg (mb, 0);
9315 mono_mb_emit_icon (mb, sizeof (MonoObject));
9316 mono_mb_emit_byte (mb, CEE_ADD);
9317 for (i = 0; i < sig->param_count; ++i)
9318 mono_mb_emit_ldarg (mb, i + 1);
9319 mono_mb_emit_managed_call (mb, method, NULL);
9320 mono_mb_emit_byte (mb, CEE_RET);
9323 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9324 info->d.unbox.method = method;
9326 res = mono_mb_create_and_cache_full (cache, method,
9327 mb, sig, sig->param_count + 16, info, NULL);
9330 /* mono_method_print_code (res); */
9336 STELEMREF_OBJECT, /*no check at all*/
9337 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9338 STELEMREF_CLASS, /*only the klass->parents check*/
9339 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9340 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9341 STELEMREF_KIND_COUNT
9344 static const char *strelemref_wrapper_name[] = {
9345 "object", "sealed_class", "class", "interface", "complex"
9349 is_monomorphic_array (MonoClass *klass)
9351 MonoClass *element_class;
9352 if (klass->rank != 1)
9355 element_class = klass->element_class;
9356 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9360 get_virtual_stelemref_kind (MonoClass *element_class)
9362 if (element_class == mono_defaults.object_class)
9363 return STELEMREF_OBJECT;
9364 if (is_monomorphic_array (element_class))
9365 return STELEMREF_SEALED_CLASS;
9366 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9367 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9368 #ifdef COMPRESSED_INTERFACE_BITMAP
9369 return STELEMREF_COMPLEX;
9371 return STELEMREF_INTERFACE;
9373 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9374 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9375 return STELEMREF_COMPLEX;
9376 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9377 return STELEMREF_SEALED_CLASS;
9378 return STELEMREF_CLASS;
9384 load_array_element_address (MonoMethodBuilder *mb)
9386 mono_mb_emit_ldarg (mb, 0);
9387 mono_mb_emit_ldarg (mb, 1);
9388 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9392 load_array_class (MonoMethodBuilder *mb, int aklass)
9394 mono_mb_emit_ldarg (mb, 0);
9395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9396 mono_mb_emit_byte (mb, CEE_LDIND_I);
9397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9398 mono_mb_emit_byte (mb, CEE_LDIND_I);
9399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9400 mono_mb_emit_byte (mb, CEE_LDIND_I);
9401 mono_mb_emit_stloc (mb, aklass);
9405 load_value_class (MonoMethodBuilder *mb, int vklass)
9407 mono_mb_emit_ldarg (mb, 2);
9408 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9409 mono_mb_emit_byte (mb, CEE_LDIND_I);
9410 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9411 mono_mb_emit_byte (mb, CEE_LDIND_I);
9412 mono_mb_emit_stloc (mb, vklass);
9418 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9420 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9421 printf ("slow vstore of %s\n", name);
9427 * The wrapper info for the wrapper is a WrapperInfo structure.
9430 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9431 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9432 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9433 * - Add a case for arrays of arrays.
9436 get_virtual_stelemref_wrapper (int kind)
9438 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9439 static MonoMethodSignature *signature;
9440 MonoMethodBuilder *mb;
9443 const char *param_names [16];
9445 int aklass, vklass, vtable, uiid;
9446 int array_slot_addr;
9449 if (cached_methods [kind])
9450 return cached_methods [kind];
9452 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9453 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9457 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9459 /* void this::stelemref (size_t idx, void* value) */
9460 sig->ret = &mono_defaults.void_class->byval_arg;
9461 sig->hasthis = TRUE;
9462 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9463 sig->params [1] = &mono_defaults.object_class->byval_arg;
9468 param_names [0] = "index";
9469 param_names [1] = "value";
9470 mono_mb_set_param_names (mb, param_names);
9472 /*For now simply call plain old stelemref*/
9474 case STELEMREF_OBJECT:
9475 /* ldelema (implicit bound check) */
9476 load_array_element_address (mb);
9478 mono_mb_emit_ldarg (mb, 2);
9479 mono_mb_emit_byte (mb, CEE_STIND_REF);
9480 mono_mb_emit_byte (mb, CEE_RET);
9483 case STELEMREF_COMPLEX:
9485 <ldelema (bound check)>
9488 if (!mono_object_isinst (value, aklass))
9492 *array_slot_addr = value;
9495 throw new ArrayTypeMismatchException ();
9498 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9499 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9503 /*Use this to debug/record stores that are going thru the slow path*/
9504 MonoMethodSignature *csig;
9505 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9506 csig->ret = &mono_defaults.void_class->byval_arg;
9507 csig->params [0] = &mono_defaults.object_class->byval_arg;
9508 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9509 csig->params [2] = &mono_defaults.object_class->byval_arg;
9510 mono_mb_emit_ldarg (mb, 0);
9511 mono_mb_emit_ldarg (mb, 1);
9512 mono_mb_emit_ldarg (mb, 2);
9513 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9517 /* ldelema (implicit bound check) */
9518 load_array_element_address (mb);
9519 mono_mb_emit_stloc (mb, array_slot_addr);
9521 /* if (!value) goto do_store */
9522 mono_mb_emit_ldarg (mb, 2);
9523 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9525 /* aklass = array->vtable->klass->element_class */
9526 load_array_class (mb, aklass);
9528 /*if (mono_object_isinst (value, aklass)) */
9529 mono_mb_emit_ldarg (mb, 2);
9530 mono_mb_emit_ldloc (mb, aklass);
9531 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9532 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9535 mono_mb_patch_branch (mb, b1);
9536 mono_mb_emit_ldloc (mb, array_slot_addr);
9537 mono_mb_emit_ldarg (mb, 2);
9538 mono_mb_emit_byte (mb, CEE_STIND_REF);
9539 mono_mb_emit_byte (mb, CEE_RET);
9542 mono_mb_patch_branch (mb, b2);
9544 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9547 case STELEMREF_SEALED_CLASS:
9549 <ldelema (bound check)>
9553 aklass = array->vtable->klass->element_class;
9554 vklass = value->vtable->klass;
9556 if (vklass != aklass)
9560 *array_slot_addr = value;
9563 throw new ArrayTypeMismatchException ();
9565 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9566 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9567 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9570 /* ldelema (implicit bound check) */
9571 load_array_element_address (mb);
9572 mono_mb_emit_stloc (mb, array_slot_addr);
9574 /* if (!value) goto do_store */
9575 mono_mb_emit_ldarg (mb, 2);
9576 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9578 /* aklass = array->vtable->klass->element_class */
9579 load_array_class (mb, aklass);
9581 /* vklass = value->vtable->klass */
9582 load_value_class (mb, vklass);
9584 /*if (vklass != aklass) goto do_exception; */
9585 mono_mb_emit_ldloc (mb, aklass);
9586 mono_mb_emit_ldloc (mb, vklass);
9587 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9590 mono_mb_patch_branch (mb, b1);
9591 mono_mb_emit_ldloc (mb, array_slot_addr);
9592 mono_mb_emit_ldarg (mb, 2);
9593 mono_mb_emit_byte (mb, CEE_STIND_REF);
9594 mono_mb_emit_byte (mb, CEE_RET);
9597 mono_mb_patch_branch (mb, b2);
9598 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9601 case STELEMREF_CLASS:
9604 <ldelema (bound check)>
9608 aklass = array->vtable->klass->element_class;
9609 vklass = value->vtable->klass;
9611 if (vklass->idepth < aklass->idepth)
9614 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9618 *array_slot_addr = value;
9622 throw new ArrayTypeMismatchException ();
9624 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9625 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9626 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9628 /* ldelema (implicit bound check) */
9629 load_array_element_address (mb);
9630 mono_mb_emit_stloc (mb, array_slot_addr);
9632 /* if (!value) goto do_store */
9633 mono_mb_emit_ldarg (mb, 2);
9634 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9636 /* aklass = array->vtable->klass->element_class */
9637 load_array_class (mb, aklass);
9639 /* vklass = value->vtable->klass */
9640 load_value_class (mb, vklass);
9642 /*if (mono_object_isinst (value, aklass)) */
9643 mono_mb_emit_ldarg (mb, 2);
9644 mono_mb_emit_ldloc (mb, aklass);
9645 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9646 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9648 /* if (vklass->idepth < aklass->idepth) goto failue */
9649 mono_mb_emit_ldloc (mb, vklass);
9650 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9651 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9653 mono_mb_emit_ldloc (mb, aklass);
9654 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9655 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9657 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9659 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9660 mono_mb_emit_ldloc (mb, vklass);
9661 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9662 mono_mb_emit_byte (mb, CEE_LDIND_I);
9664 mono_mb_emit_ldloc (mb, aklass);
9665 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9666 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9667 mono_mb_emit_icon (mb, 1);
9668 mono_mb_emit_byte (mb, CEE_SUB);
9669 mono_mb_emit_icon (mb, sizeof (void*));
9670 mono_mb_emit_byte (mb, CEE_MUL);
9671 mono_mb_emit_byte (mb, CEE_ADD);
9672 mono_mb_emit_byte (mb, CEE_LDIND_I);
9674 mono_mb_emit_ldloc (mb, aklass);
9675 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9678 mono_mb_patch_branch (mb, b1);
9679 mono_mb_emit_ldloc (mb, array_slot_addr);
9680 mono_mb_emit_ldarg (mb, 2);
9681 mono_mb_emit_byte (mb, CEE_STIND_REF);
9682 mono_mb_emit_byte (mb, CEE_RET);
9685 mono_mb_patch_branch (mb, b2);
9686 mono_mb_patch_branch (mb, b3);
9688 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9691 case STELEMREF_INTERFACE:
9698 klass = array->obj.vtable->klass->element_class;
9700 uiid = klass->interface_id;
9701 if (uiid > vt->max_interface_id)
9703 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9706 mono_array_setref (array, index, value);
9709 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9711 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9712 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9713 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9714 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9716 /* ldelema (implicit bound check) */
9717 load_array_element_address (mb);
9718 mono_mb_emit_stloc (mb, array_slot_addr);
9720 /* if (!value) goto do_store */
9721 mono_mb_emit_ldarg (mb, 2);
9722 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9724 /* klass = array->vtable->klass->element_class */
9725 load_array_class (mb, aklass);
9727 /* vt = value->vtable */
9728 mono_mb_emit_ldarg (mb, 2);
9729 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9730 mono_mb_emit_byte (mb, CEE_LDIND_I);
9731 mono_mb_emit_stloc (mb, vtable);
9733 /* uiid = klass->interface_id; */
9734 mono_mb_emit_ldloc (mb, aklass);
9735 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9736 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9737 mono_mb_emit_stloc (mb, uiid);
9739 /*if (uiid > vt->max_interface_id)*/
9740 mono_mb_emit_ldloc (mb, uiid);
9741 mono_mb_emit_ldloc (mb, vtable);
9742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9743 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9744 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9746 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9748 /*vt->interface_bitmap*/
9749 mono_mb_emit_ldloc (mb, vtable);
9750 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9751 mono_mb_emit_byte (mb, CEE_LDIND_I);
9754 mono_mb_emit_ldloc (mb, uiid);
9755 mono_mb_emit_icon (mb, 3);
9756 mono_mb_emit_byte (mb, CEE_SHR_UN);
9758 /*vt->interface_bitmap [(uiid) >> 3]*/
9759 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9760 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9762 /*(1 << ((uiid)&7)))*/
9763 mono_mb_emit_icon (mb, 1);
9764 mono_mb_emit_ldloc (mb, uiid);
9765 mono_mb_emit_icon (mb, 7);
9766 mono_mb_emit_byte (mb, CEE_AND);
9767 mono_mb_emit_byte (mb, CEE_SHL);
9769 /*bitwise and the whole thing*/
9770 mono_mb_emit_byte (mb, CEE_AND);
9771 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9774 mono_mb_patch_branch (mb, b1);
9775 mono_mb_emit_ldloc (mb, array_slot_addr);
9776 mono_mb_emit_ldarg (mb, 2);
9777 mono_mb_emit_byte (mb, CEE_STIND_REF);
9778 mono_mb_emit_byte (mb, CEE_RET);
9781 mono_mb_patch_branch (mb, b2);
9782 mono_mb_patch_branch (mb, b3);
9783 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9787 mono_mb_emit_ldarg (mb, 0);
9788 mono_mb_emit_ldarg (mb, 1);
9789 mono_mb_emit_ldarg (mb, 2);
9790 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9791 mono_mb_emit_byte (mb, CEE_RET);
9794 #endif /* DISABLE_JIT */
9795 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9796 info->d.virtual_stelemref.kind = kind;
9797 res = mono_mb_create (mb, signature, 4, info);
9798 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9800 mono_marshal_lock ();
9801 if (!cached_methods [kind]) {
9802 cached_methods [kind] = res;
9803 mono_marshal_unlock ();
9805 mono_marshal_unlock ();
9806 mono_free_method (res);
9810 return cached_methods [kind];
9814 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9818 g_assert (array_class->rank == 1);
9819 kind = get_virtual_stelemref_kind (array_class->element_class);
9821 return get_virtual_stelemref_wrapper (kind);
9825 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9830 *nwrappers = STELEMREF_KIND_COUNT;
9831 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9832 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9833 res [i] = get_virtual_stelemref_wrapper (i);
9838 * The wrapper info for the wrapper is a WrapperInfo structure.
9841 mono_marshal_get_stelemref (void)
9843 static MonoMethod* ret = NULL;
9844 MonoMethodSignature *sig;
9845 MonoMethodBuilder *mb;
9848 guint32 b1, b2, b3, b4;
9851 int array_slot_addr;
9856 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9859 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9861 /* void stelemref (void* array, int idx, void* value) */
9862 sig->ret = &mono_defaults.void_class->byval_arg;
9863 sig->params [0] = &mono_defaults.object_class->byval_arg;
9864 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9865 sig->params [2] = &mono_defaults.object_class->byval_arg;
9868 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9869 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9870 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9874 <ldelema (bound check)>
9878 aklass = array->vtable->klass->element_class;
9879 vklass = value->vtable->klass;
9881 if (vklass->idepth < aklass->idepth)
9884 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9888 *array_slot_addr = value;
9892 if (mono_object_isinst (value, aklass))
9895 throw new ArrayTypeMismatchException ();
9898 /* ldelema (implicit bound check) */
9899 mono_mb_emit_ldarg (mb, 0);
9900 mono_mb_emit_ldarg (mb, 1);
9901 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9902 mono_mb_emit_stloc (mb, array_slot_addr);
9904 /* if (!value) goto do_store */
9905 mono_mb_emit_ldarg (mb, 2);
9906 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9908 /* aklass = array->vtable->klass->element_class */
9909 mono_mb_emit_ldarg (mb, 0);
9910 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9911 mono_mb_emit_byte (mb, CEE_LDIND_I);
9912 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9913 mono_mb_emit_byte (mb, CEE_LDIND_I);
9914 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9915 mono_mb_emit_byte (mb, CEE_LDIND_I);
9916 mono_mb_emit_stloc (mb, aklass);
9918 /* vklass = value->vtable->klass */
9919 mono_mb_emit_ldarg (mb, 2);
9920 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9921 mono_mb_emit_byte (mb, CEE_LDIND_I);
9922 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9923 mono_mb_emit_byte (mb, CEE_LDIND_I);
9924 mono_mb_emit_stloc (mb, vklass);
9926 /* if (vklass->idepth < aklass->idepth) goto failue */
9927 mono_mb_emit_ldloc (mb, vklass);
9928 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9929 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9931 mono_mb_emit_ldloc (mb, aklass);
9932 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9933 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9935 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9937 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9938 mono_mb_emit_ldloc (mb, vklass);
9939 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9940 mono_mb_emit_byte (mb, CEE_LDIND_I);
9942 mono_mb_emit_ldloc (mb, aklass);
9943 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9944 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9945 mono_mb_emit_icon (mb, 1);
9946 mono_mb_emit_byte (mb, CEE_SUB);
9947 mono_mb_emit_icon (mb, sizeof (void*));
9948 mono_mb_emit_byte (mb, CEE_MUL);
9949 mono_mb_emit_byte (mb, CEE_ADD);
9950 mono_mb_emit_byte (mb, CEE_LDIND_I);
9952 mono_mb_emit_ldloc (mb, aklass);
9954 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9956 copy_pos = mono_mb_get_label (mb);
9958 mono_mb_patch_branch (mb, b1);
9959 mono_mb_emit_ldloc (mb, array_slot_addr);
9960 mono_mb_emit_ldarg (mb, 2);
9961 mono_mb_emit_byte (mb, CEE_STIND_REF);
9963 mono_mb_emit_byte (mb, CEE_RET);
9966 mono_mb_patch_branch (mb, b2);
9967 mono_mb_patch_branch (mb, b3);
9969 mono_mb_emit_ldarg (mb, 2);
9970 mono_mb_emit_ldloc (mb, aklass);
9971 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9973 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9974 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9975 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9977 mono_mb_emit_byte (mb, CEE_RET);
9979 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9980 ret = mono_mb_create (mb, sig, 4, info);
9987 * mono_marshal_get_gsharedvt_in_wrapper:
9989 * This wrapper handles calls from normal code to gsharedvt code.
9991 * The wrapper info for the wrapper is a WrapperInfo structure.
9994 mono_marshal_get_gsharedvt_in_wrapper (void)
9996 static MonoMethod* ret = NULL;
9997 MonoMethodSignature *sig;
9998 MonoMethodBuilder *mb;
10004 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10006 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10007 sig->ret = &mono_defaults.void_class->byval_arg;
10009 #ifndef DISABLE_JIT
10011 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10013 mono_mb_emit_byte (mb, CEE_RET);
10015 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10016 ret = mono_mb_create (mb, sig, 4, info);
10023 * mono_marshal_get_gsharedvt_out_wrapper:
10025 * This wrapper handles calls from gsharedvt code to normal code.
10027 * The wrapper info for the wrapper is a WrapperInfo structure.
10030 mono_marshal_get_gsharedvt_out_wrapper (void)
10032 static MonoMethod* ret = NULL;
10033 MonoMethodSignature *sig;
10034 MonoMethodBuilder *mb;
10040 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10042 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10043 sig->ret = &mono_defaults.void_class->byval_arg;
10045 #ifndef DISABLE_JIT
10047 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10049 mono_mb_emit_byte (mb, CEE_RET);
10051 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10052 ret = mono_mb_create (mb, sig, 4, info);
10061 MonoMethod *method;
10064 /* LOCKING: vars accessed under the marshal lock */
10065 static ArrayElemAddr *elem_addr_cache = NULL;
10066 static int elem_addr_cache_size = 0;
10067 static int elem_addr_cache_next = 0;
10070 * mono_marshal_get_array_address:
10071 * @rank: rank of the array type
10072 * @elem_size: size in bytes of an element of an array.
10074 * Returns a MonoMethod that implements the code to get the address
10075 * of an element in a multi-dimenasional array of @rank dimensions.
10076 * The returned method takes an array as the first argument and then
10077 * @rank indexes for the @rank dimensions.
10078 * If ELEM_SIZE is 0, read the array size from the array object.
10081 mono_marshal_get_array_address (int rank, int elem_size)
10084 MonoMethodBuilder *mb;
10085 MonoMethodSignature *sig;
10088 int i, bounds, ind, realidx;
10089 int branch_pos, *branch_positions;
10093 mono_marshal_lock ();
10094 for (i = 0; i < elem_addr_cache_next; ++i) {
10095 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10096 ret = elem_addr_cache [i].method;
10100 mono_marshal_unlock ();
10104 branch_positions = g_new0 (int, rank);
10106 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10108 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10109 sig->ret = &mono_defaults.int_class->byval_arg;
10110 sig->params [0] = &mono_defaults.object_class->byval_arg;
10111 for (i = 0; i < rank; ++i) {
10112 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10115 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10116 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10119 #ifndef DISABLE_JIT
10120 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10121 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10122 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10124 /* bounds = array->bounds; */
10125 mono_mb_emit_ldarg (mb, 0);
10126 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10127 mono_mb_emit_byte (mb, CEE_LDIND_I);
10128 mono_mb_emit_stloc (mb, bounds);
10130 /* ind is the overall element index, realidx is the partial index in a single dimension */
10131 /* ind = idx0 - bounds [0].lower_bound */
10132 mono_mb_emit_ldarg (mb, 1);
10133 mono_mb_emit_ldloc (mb, bounds);
10134 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10135 mono_mb_emit_byte (mb, CEE_ADD);
10136 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10137 mono_mb_emit_byte (mb, CEE_SUB);
10138 mono_mb_emit_stloc (mb, ind);
10139 /* if (ind >= bounds [0].length) goto exeception; */
10140 mono_mb_emit_ldloc (mb, ind);
10141 mono_mb_emit_ldloc (mb, bounds);
10142 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10143 mono_mb_emit_byte (mb, CEE_ADD);
10144 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10145 /* note that we use unsigned comparison */
10146 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10148 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10149 * We could also decide to ignore the passed elem_size and get it
10150 * from the array object, to reduce the number of methods we generate:
10151 * the additional cost is 3 memory loads and a non-immediate mul.
10153 for (i = 1; i < rank; ++i) {
10154 /* realidx = idxi - bounds [i].lower_bound */
10155 mono_mb_emit_ldarg (mb, 1 + i);
10156 mono_mb_emit_ldloc (mb, bounds);
10157 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10158 mono_mb_emit_byte (mb, CEE_ADD);
10159 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10160 mono_mb_emit_byte (mb, CEE_SUB);
10161 mono_mb_emit_stloc (mb, realidx);
10162 /* if (realidx >= bounds [i].length) goto exeception; */
10163 mono_mb_emit_ldloc (mb, realidx);
10164 mono_mb_emit_ldloc (mb, bounds);
10165 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10166 mono_mb_emit_byte (mb, CEE_ADD);
10167 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10168 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10169 /* ind = ind * bounds [i].length + realidx */
10170 mono_mb_emit_ldloc (mb, ind);
10171 mono_mb_emit_ldloc (mb, bounds);
10172 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10173 mono_mb_emit_byte (mb, CEE_ADD);
10174 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10175 mono_mb_emit_byte (mb, CEE_MUL);
10176 mono_mb_emit_ldloc (mb, realidx);
10177 mono_mb_emit_byte (mb, CEE_ADD);
10178 mono_mb_emit_stloc (mb, ind);
10181 /* return array->vector + ind * element_size */
10182 mono_mb_emit_ldarg (mb, 0);
10183 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10184 mono_mb_emit_ldloc (mb, ind);
10186 mono_mb_emit_icon (mb, elem_size);
10188 /* Load arr->vtable->klass->sizes.element_class */
10189 mono_mb_emit_ldarg (mb, 0);
10190 mono_mb_emit_byte (mb, CEE_CONV_I);
10191 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10192 mono_mb_emit_byte (mb, CEE_ADD);
10193 mono_mb_emit_byte (mb, CEE_LDIND_I);
10194 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10195 mono_mb_emit_byte (mb, CEE_ADD);
10196 mono_mb_emit_byte (mb, CEE_LDIND_I);
10197 /* sizes is an union, so this reads sizes.element_size */
10198 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10199 mono_mb_emit_byte (mb, CEE_ADD);
10200 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10202 mono_mb_emit_byte (mb, CEE_MUL);
10203 mono_mb_emit_byte (mb, CEE_ADD);
10204 mono_mb_emit_byte (mb, CEE_RET);
10206 /* patch the branches to get here and throw */
10207 for (i = 1; i < rank; ++i) {
10208 mono_mb_patch_branch (mb, branch_positions [i]);
10210 mono_mb_patch_branch (mb, branch_pos);
10211 /* throw exception */
10212 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10214 g_free (branch_positions);
10215 #endif /* DISABLE_JIT */
10217 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10218 info->d.element_addr.rank = rank;
10219 info->d.element_addr.elem_size = elem_size;
10220 ret = mono_mb_create (mb, sig, 4, info);
10223 /* cache the result */
10225 mono_marshal_lock ();
10226 for (i = 0; i < elem_addr_cache_next; ++i) {
10227 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10228 /* FIXME: free ret */
10229 ret = elem_addr_cache [i].method;
10235 if (elem_addr_cache_next >= elem_addr_cache_size) {
10236 int new_size = elem_addr_cache_size + 4;
10237 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10238 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10239 g_free (elem_addr_cache);
10240 elem_addr_cache = new_array;
10241 elem_addr_cache_size = new_size;
10243 elem_addr_cache [elem_addr_cache_next].rank = rank;
10244 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10245 elem_addr_cache [elem_addr_cache_next].method = ret;
10246 elem_addr_cache_next ++;
10248 mono_marshal_unlock ();
10253 * mono_marshal_get_array_accessor_wrapper:
10255 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10258 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10260 MonoMethodSignature *sig;
10261 MonoMethodBuilder *mb;
10265 MonoGenericContext *ctx = NULL;
10266 MonoMethod *orig_method = NULL;
10267 MonoGenericContainer *container = NULL;
10271 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10272 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10273 * FIXME: Use generic methods.
10280 g_assert_not_reached ();
10282 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10283 if ((res = mono_marshal_find_in_cache (cache, method)))
10287 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10290 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10292 #ifndef DISABLE_JIT
10293 /* Call the method */
10295 mono_mb_emit_ldarg (mb, 0);
10296 for (i = 0; i < sig->param_count; i++)
10297 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10301 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10302 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10304 mono_mb_emit_managed_call (mb, method, NULL);
10306 mono_mb_emit_byte (mb, CEE_RET);
10309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10310 info->d.array_accessor.method = method;
10314 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10315 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10317 res = mono_mb_create_and_cache_full (cache, method,
10318 mb, sig, sig->param_count + 16,
10327 mono_marshal_alloc (gulong size, MonoError *error)
10331 mono_error_init (error);
10334 res = CoTaskMemAlloc (size);
10336 res = g_try_malloc ((gulong)size);
10338 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10343 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10345 ves_icall_marshal_alloc (gulong size)
10348 void *ret = mono_marshal_alloc (size, &error);
10349 if (!mono_error_ok (&error)) {
10350 mono_error_set_pending_exception (&error);
10358 mono_marshal_free (gpointer ptr)
10361 CoTaskMemFree (ptr);
10368 mono_marshal_free_array (gpointer *ptr, int size)
10375 for (i = 0; i < size; i++)
10381 mono_marshal_string_to_utf16 (MonoString *s)
10383 return s ? mono_string_chars (s) : NULL;
10386 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10388 mono_marshal_string_to_utf16_copy (MonoString *s)
10394 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10395 if (!mono_error_ok (&error)) {
10396 mono_error_set_pending_exception (&error);
10399 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10400 res [mono_string_length (s)] = 0;
10406 * mono_marshal_set_last_error:
10408 * This function is invoked to set the last error value from a P/Invoke call
10409 * which has SetLastError set.
10412 mono_marshal_set_last_error (void)
10415 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10417 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10422 mono_marshal_set_last_error_windows (int error)
10425 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10430 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10431 gpointer dest, gint32 length)
10436 MONO_CHECK_ARG_NULL (src,);
10437 MONO_CHECK_ARG_NULL (dest,);
10439 if (src->obj.vtable->klass->rank != 1) {
10440 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10443 if (start_index < 0) {
10444 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10448 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10451 if (start_index + length > mono_array_length (src)) {
10452 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10456 element_size = mono_array_element_size (src->obj.vtable->klass);
10458 /* no references should be involved */
10459 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10461 memcpy (dest, source_addr, length * element_size);
10465 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10466 MonoArray *dest, gint32 length)
10471 MONO_CHECK_ARG_NULL (src,);
10472 MONO_CHECK_ARG_NULL (dest,);
10474 if (dest->obj.vtable->klass->rank != 1) {
10475 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10478 if (start_index < 0) {
10479 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10483 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10486 if (start_index + length > mono_array_length (dest)) {
10487 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10490 element_size = mono_array_element_size (dest->obj.vtable->klass);
10492 /* no references should be involved */
10493 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10495 memcpy (dest_addr, src, length * element_size);
10499 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10504 return mono_string_new (mono_domain_get (), ptr);
10508 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10511 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10514 return mono_string_new_len (mono_domain_get (), ptr, len);
10519 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10522 MonoString *res = NULL;
10523 MonoDomain *domain = mono_domain_get ();
10533 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10534 if (!mono_error_ok (&error)) {
10535 mono_error_set_pending_exception (&error);
10542 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10545 MonoString *res = NULL;
10546 MonoDomain *domain = mono_domain_get ();
10548 mono_error_init (&error);
10552 mono_error_set_argument_null (&error, "ptr", "");
10554 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10557 if (!mono_error_ok (&error))
10558 mono_error_set_pending_exception (&error);
10563 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10565 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10569 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10575 MONO_CHECK_ARG_NULL (rtype, 0);
10577 type = rtype->type;
10578 klass = mono_class_from_mono_type (type);
10579 if (!mono_class_init (klass)) {
10580 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10584 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10586 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10587 return sizeof (gpointer);
10588 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10590 MonoException *exc;
10592 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10593 exc = mono_get_exception_argument ("t", msg);
10595 mono_set_pending_exception (exc);
10599 return mono_class_native_size (klass, NULL);
10603 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10606 MonoMethod *method;
10609 MONO_CHECK_ARG_NULL (obj,);
10610 MONO_CHECK_ARG_NULL (dst,);
10612 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10616 pa [2] = &delete_old;
10618 mono_runtime_invoke_checked (method, NULL, pa, &error);
10619 if (!mono_error_ok (&error))
10620 mono_error_set_pending_exception (&error);
10624 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10626 MonoMethod *method;
10629 mono_error_init (error);
10631 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10636 mono_runtime_invoke_checked (method, NULL, pa, error);
10640 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10645 MONO_CHECK_ARG_NULL (src,);
10646 MONO_CHECK_ARG_NULL (dst,);
10648 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10650 if (t->type == MONO_TYPE_VALUETYPE) {
10651 MonoException *exc;
10654 tmp = g_strdup_printf ("Destination is a boxed value type.");
10655 exc = mono_get_exception_argument ("dst", tmp);
10658 mono_set_pending_exception (exc);
10662 ptr_to_structure (src, dst, &error);
10663 if (!mono_error_ok (&error))
10664 mono_error_set_pending_exception (&error);
10668 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10672 MonoDomain *domain = mono_domain_get ();
10677 MONO_CHECK_ARG_NULL (type, NULL);
10679 klass = mono_class_from_mono_type (type->type);
10680 if (!mono_class_init (klass)) {
10681 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10685 res = mono_object_new_checked (domain, klass, &error);
10686 if (!mono_error_ok (&error)) {
10687 mono_error_set_pending_exception (&error);
10691 ptr_to_structure (src, res, &error);
10692 if (!mono_error_ok (&error)) {
10693 mono_error_set_pending_exception (&error);
10701 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10703 MonoMarshalType *info;
10706 int match_index = -1;
10708 MONO_CHECK_ARG_NULL (type, 0);
10709 MONO_CHECK_ARG_NULL (field_name, 0);
10711 fname = mono_string_to_utf8 (field_name);
10712 klass = mono_class_from_mono_type (type->type);
10713 if (!mono_class_init (klass)) {
10714 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10718 while (klass && match_index == -1) {
10719 MonoClassField* field;
10721 gpointer iter = NULL;
10722 while ((field = mono_class_get_fields (klass, &iter))) {
10723 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10725 if (!strcmp (fname, mono_field_get_name (field))) {
10732 if (match_index == -1)
10733 klass = klass->parent;
10738 if(match_index == -1) {
10739 MonoException* exc;
10742 /* Get back original class instance */
10743 klass = mono_class_from_mono_type (type->type);
10745 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10746 exc = mono_get_exception_argument ("fieldName", tmp);
10749 mono_set_pending_exception ((MonoException*)exc);
10753 info = mono_marshal_load_type_info (klass);
10754 return info->fields [match_index].offset;
10758 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10763 tres = mono_string_to_utf8 (string);
10767 len = strlen (tres) + 1;
10768 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10769 memcpy (ret, tres, len);
10774 return mono_string_to_utf8 (string);
10779 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10781 if (string == NULL)
10784 #ifdef TARGET_WIN32
10785 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10786 ((mono_string_length (string) + 1) * 2);
10788 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10790 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10791 res [mono_string_length (string)] = 0;
10797 mono_struct_delete_old (MonoClass *klass, char *ptr)
10799 MonoMarshalType *info;
10802 info = mono_marshal_load_type_info (klass);
10804 for (i = 0; i < info->num_fields; i++) {
10805 MonoMarshalConv conv;
10806 MonoType *ftype = info->fields [i].field->type;
10809 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10812 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10813 klass->unicode, &conv);
10815 cpos = ptr + info->fields [i].offset;
10818 case MONO_MARSHAL_CONV_NONE:
10819 if (MONO_TYPE_ISSTRUCT (ftype)) {
10820 mono_struct_delete_old (ftype->data.klass, cpos);
10824 case MONO_MARSHAL_CONV_STR_LPWSTR:
10825 /* We assume this field points inside a MonoString */
10827 case MONO_MARSHAL_CONV_STR_LPTSTR:
10828 #ifdef TARGET_WIN32
10829 /* We assume this field points inside a MonoString
10833 case MONO_MARSHAL_CONV_STR_LPSTR:
10834 case MONO_MARSHAL_CONV_STR_BSTR:
10835 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10836 case MONO_MARSHAL_CONV_STR_TBSTR:
10837 mono_marshal_free (*(gpointer *)cpos);
10847 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10851 MONO_CHECK_ARG_NULL (src,);
10852 MONO_CHECK_ARG_NULL (type,);
10854 klass = mono_class_from_mono_type (type->type);
10855 if (!mono_class_init (klass)) {
10856 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10860 mono_struct_delete_old (klass, (char *)src);
10864 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10867 size_t s = (size_t)size;
10870 /* This returns a valid pointer for size 0 on MS.NET */
10874 res = GlobalAlloc (GMEM_FIXED, s);
10876 res = g_try_malloc (s);
10879 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10887 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10890 size_t s = (size_t)size;
10893 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10898 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10900 res = g_try_realloc (ptr, s);
10903 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10911 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10921 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10926 res = CoTaskMemAlloc (size);
10928 if ((gulong)size == 0)
10929 /* This returns a valid pointer for size 0 on MS.NET */
10932 res = g_try_malloc ((gulong)size);
10935 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10942 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10945 CoTaskMemFree (ptr);
10952 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10957 res = CoTaskMemRealloc (ptr, size);
10959 res = g_try_realloc (ptr, (gulong)size);
10962 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10969 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10971 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10975 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10977 MonoClass *klass = mono_type_get_class (type->type);
10978 if (!mono_class_init (klass)) {
10979 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10983 return mono_ftnptr_to_delegate (klass, ftn);
10987 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10989 return mono_delegate_to_ftnptr (delegate);
10993 * mono_marshal_is_loading_type_info:
10995 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10999 mono_marshal_is_loading_type_info (MonoClass *klass)
11001 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11003 return g_slist_find (loads_list, klass) != NULL;
11007 * mono_marshal_load_type_info:
11009 * Initialize klass->marshal_info using information from metadata. This function can
11010 * recursively call itself, and the caller is responsible to avoid that by calling
11011 * mono_marshal_is_loading_type_info () beforehand.
11013 * LOCKING: Acquires the loader lock.
11016 mono_marshal_load_type_info (MonoClass* klass)
11019 guint32 native_size = 0, min_align = 1, packing;
11020 MonoMarshalType *info;
11021 MonoClassField* field;
11024 GSList *loads_list;
11026 g_assert (klass != NULL);
11028 if (klass->marshal_info)
11029 return klass->marshal_info;
11031 if (!klass->inited)
11032 mono_class_init (klass);
11034 if (klass->marshal_info)
11035 return klass->marshal_info;
11038 * This function can recursively call itself, so we keep the list of classes which are
11039 * under initialization in a TLS list.
11041 g_assert (!mono_marshal_is_loading_type_info (klass));
11042 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11043 loads_list = g_slist_prepend (loads_list, klass);
11044 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11047 while ((field = mono_class_get_fields (klass, &iter))) {
11048 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11050 if (mono_field_is_deleted (field))
11055 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11057 /* The mempool is protected by the loader lock */
11058 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11059 info->num_fields = count;
11061 /* Try to find a size for this type in metadata */
11062 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11064 if (klass->parent) {
11065 int parent_size = mono_class_native_size (klass->parent, NULL);
11067 /* Add parent size to real size */
11068 native_size += parent_size;
11069 info->native_size = parent_size;
11072 packing = klass->packing_size ? klass->packing_size : 8;
11075 while ((field = mono_class_get_fields (klass, &iter))) {
11079 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11082 if (mono_field_is_deleted (field))
11084 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11085 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11086 NULL, NULL, &info->fields [j].mspec);
11088 info->fields [j].field = field;
11090 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11091 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11092 /* This field is a hack inserted by MCS to empty structures */
11097 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11098 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11099 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11100 &align, TRUE, klass->unicode);
11101 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11102 min_align = MAX (align, min_align);
11103 info->fields [j].offset = info->native_size;
11104 info->fields [j].offset += align - 1;
11105 info->fields [j].offset &= ~(align - 1);
11106 info->native_size = info->fields [j].offset + size;
11108 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11109 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11110 &align, TRUE, klass->unicode);
11111 min_align = MAX (align, min_align);
11112 info->fields [j].offset = field->offset - sizeof (MonoObject);
11113 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11119 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11120 info->native_size = MAX (native_size, info->native_size);
11122 * If the provided Size is equal or larger than the calculated size, and there
11123 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11125 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11126 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11129 min_align = MIN (min_align, packing);
11133 if (info->native_size & (min_align - 1)) {
11134 info->native_size += min_align - 1;
11135 info->native_size &= ~(min_align - 1);
11138 info->min_align = min_align;
11140 /* Update the class's blittable info, if the layouts don't match */
11141 if (info->native_size != mono_class_value_size (klass, NULL))
11142 klass->blittable = FALSE;
11144 /* If this is an array type, ensure that we have element info */
11145 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11146 mono_marshal_load_type_info (klass->element_class);
11149 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11150 loads_list = g_slist_remove (loads_list, klass);
11151 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11153 mono_marshal_lock ();
11154 if (!klass->marshal_info) {
11155 /*We do double-checking locking on marshal_info */
11156 mono_memory_barrier ();
11157 klass->marshal_info = info;
11159 mono_marshal_unlock ();
11161 return klass->marshal_info;
11165 * mono_class_native_size:
11168 * Returns: the native size of an object instance (when marshaled
11169 * to unmanaged code)
11172 mono_class_native_size (MonoClass *klass, guint32 *align)
11174 if (!klass->marshal_info) {
11175 if (mono_marshal_is_loading_type_info (klass)) {
11180 mono_marshal_load_type_info (klass);
11185 *align = klass->marshal_info->min_align;
11187 return klass->marshal_info->native_size;
11191 * mono_type_native_stack_size:
11192 * @t: the type to return the size it uses on the stack
11194 * Returns: the number of bytes required to hold an instance of this
11195 * type on the native stack
11198 mono_type_native_stack_size (MonoType *t, guint32 *align)
11202 g_assert (t != NULL);
11208 *align = sizeof (gpointer);
11209 return sizeof (gpointer);
11213 case MONO_TYPE_BOOLEAN:
11214 case MONO_TYPE_CHAR:
11225 case MONO_TYPE_STRING:
11226 case MONO_TYPE_OBJECT:
11227 case MONO_TYPE_CLASS:
11228 case MONO_TYPE_SZARRAY:
11229 case MONO_TYPE_PTR:
11230 case MONO_TYPE_FNPTR:
11231 case MONO_TYPE_ARRAY:
11232 *align = sizeof (gpointer);
11233 return sizeof (gpointer);
11238 *align = MONO_ABI_ALIGNOF (double);
11242 *align = MONO_ABI_ALIGNOF (gint64);
11244 case MONO_TYPE_GENERICINST:
11245 if (!mono_type_generic_inst_is_valuetype (t)) {
11246 *align = sizeof (gpointer);
11247 return sizeof (gpointer);
11250 case MONO_TYPE_TYPEDBYREF:
11251 case MONO_TYPE_VALUETYPE: {
11253 MonoClass *klass = mono_class_from_mono_type (t);
11255 if (klass->enumtype)
11256 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11258 size = mono_class_native_size (klass, align);
11259 *align = *align + 3;
11269 g_error ("type 0x%02x unknown", t->type);
11275 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11276 gboolean as_field, gboolean unicode)
11278 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11281 switch (native_type) {
11282 case MONO_NATIVE_BOOLEAN:
11285 case MONO_NATIVE_I1:
11286 case MONO_NATIVE_U1:
11289 case MONO_NATIVE_I2:
11290 case MONO_NATIVE_U2:
11291 case MONO_NATIVE_VARIANTBOOL:
11294 case MONO_NATIVE_I4:
11295 case MONO_NATIVE_U4:
11296 case MONO_NATIVE_ERROR:
11299 case MONO_NATIVE_I8:
11300 case MONO_NATIVE_U8:
11301 *align = MONO_ABI_ALIGNOF (gint64);
11303 case MONO_NATIVE_R4:
11306 case MONO_NATIVE_R8:
11307 *align = MONO_ABI_ALIGNOF (double);
11309 case MONO_NATIVE_INT:
11310 case MONO_NATIVE_UINT:
11311 case MONO_NATIVE_LPSTR:
11312 case MONO_NATIVE_LPWSTR:
11313 case MONO_NATIVE_LPTSTR:
11314 case MONO_NATIVE_BSTR:
11315 case MONO_NATIVE_ANSIBSTR:
11316 case MONO_NATIVE_TBSTR:
11317 case MONO_NATIVE_LPARRAY:
11318 case MONO_NATIVE_SAFEARRAY:
11319 case MONO_NATIVE_IUNKNOWN:
11320 case MONO_NATIVE_IDISPATCH:
11321 case MONO_NATIVE_INTERFACE:
11322 case MONO_NATIVE_ASANY:
11323 case MONO_NATIVE_FUNC:
11324 case MONO_NATIVE_LPSTRUCT:
11325 *align = MONO_ABI_ALIGNOF (gpointer);
11326 return sizeof (gpointer);
11327 case MONO_NATIVE_STRUCT:
11328 klass = mono_class_from_mono_type (type);
11329 if (klass == mono_defaults.object_class &&
11330 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11334 return mono_class_native_size (klass, align);
11335 case MONO_NATIVE_BYVALTSTR: {
11336 int esize = unicode ? 2: 1;
11339 return mspec->data.array_data.num_elem * esize;
11341 case MONO_NATIVE_BYVALARRAY: {
11342 // FIXME: Have to consider ArraySubType
11344 klass = mono_class_from_mono_type (type);
11345 if (klass->element_class == mono_defaults.char_class) {
11346 esize = unicode ? 2 : 1;
11349 esize = mono_class_native_size (klass->element_class, align);
11352 return mspec->data.array_data.num_elem * esize;
11354 case MONO_NATIVE_CUSTOM:
11355 *align = sizeof (gpointer);
11356 return sizeof (gpointer);
11358 case MONO_NATIVE_CURRENCY:
11359 case MONO_NATIVE_VBBYREFSTR:
11361 g_error ("native type %02x not implemented", native_type);
11364 g_assert_not_reached ();
11368 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11370 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11379 t = &o->vtable->klass->byval_arg;
11383 case MONO_TYPE_PTR:
11386 case MONO_TYPE_BOOLEAN:
11389 case MONO_TYPE_CHAR:
11394 return mono_object_unbox (o);
11396 case MONO_TYPE_STRING:
11397 switch (string_encoding) {
11398 case MONO_NATIVE_LPWSTR:
11399 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11401 case MONO_NATIVE_LPSTR:
11402 return mono_string_to_lpstr ((MonoString*)o);
11405 g_warning ("marshaling conversion %d not implemented", string_encoding);
11406 g_assert_not_reached ();
11409 case MONO_TYPE_CLASS:
11410 case MONO_TYPE_VALUETYPE: {
11411 MonoMethod *method;
11414 MonoBoolean delete_old = FALSE;
11416 klass = t->data.klass;
11418 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11421 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11422 klass->blittable || klass->enumtype))
11423 return mono_object_unbox (o);
11425 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11426 if (!mono_error_ok (&error)) {
11427 mono_error_set_pending_exception (&error);
11431 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11432 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11436 pa [2] = &delete_old;
11438 mono_runtime_invoke_checked (method, NULL, pa, &error);
11439 if (!mono_error_ok (&error)) {
11440 mono_error_set_pending_exception (&error);
11450 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11454 /* This is a JIT icall, it sets the pending exception */
11456 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11465 t = &o->vtable->klass->byval_arg;
11467 case MONO_TYPE_STRING:
11468 switch (string_encoding) {
11469 case MONO_NATIVE_LPWSTR:
11470 case MONO_NATIVE_LPSTR:
11471 mono_marshal_free (ptr);
11474 g_warning ("marshaling conversion %d not implemented", string_encoding);
11475 g_assert_not_reached ();
11478 case MONO_TYPE_CLASS:
11479 case MONO_TYPE_VALUETYPE: {
11480 klass = t->data.klass;
11482 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11483 klass->blittable || klass->enumtype))
11486 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11487 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11493 mono_runtime_invoke_checked (method, NULL, pa, &error);
11494 if (!mono_error_ok (&error)) {
11495 mono_error_set_pending_exception (&error);
11500 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11501 mono_struct_delete_old (klass, (char *)ptr);
11504 mono_marshal_free (ptr);
11513 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11515 MonoMethodSignature *sig, *csig;
11516 MonoMethodBuilder *mb;
11521 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11522 mb->method->slot = -1;
11524 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11525 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11527 sig = mono_method_signature (method);
11528 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11529 csig->generic_param_count = 0;
11531 #ifndef DISABLE_JIT
11532 mono_mb_emit_ldarg (mb, 0);
11533 for (i = 0; i < csig->param_count; i++)
11534 mono_mb_emit_ldarg (mb, i + 1);
11535 mono_mb_emit_managed_call (mb, method, NULL);
11536 mono_mb_emit_byte (mb, CEE_RET);
11538 /* We can corlib internal methods */
11539 mb->skip_visibility = TRUE;
11541 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11542 info->d.generic_array_helper.method = method;
11543 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11551 * The mono_win32_compat_* functions are implementations of inline
11552 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11553 * although not exported by kernel32.
11555 * We map the appropiate kernel32 entries to these functions using
11556 * dllmaps declared in the global etc/mono/config.
11560 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11562 if (!dest || !source)
11565 memcpy (dest, source, length);
11569 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11571 memset (dest, fill, length);
11575 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11577 if (!dest || !source)
11580 memmove (dest, source, length);
11584 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11586 memset (dest, 0, length);
11590 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11595 for (i = 0; i < len; ++i)
11599 g_assert (i < len);
11602 while (byte && !(byte & 1))
11604 g_assert (byte == 1);
11607 *bitmask = buf [i];
11611 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11613 MonoMethodBuilder *mb;
11614 MonoMethodSignature *sig, *csig;
11615 MonoExceptionClause *clause;
11620 int i, param_count, sig_size, pos_leave;
11621 int coop_gc_var, coop_gc_dummy_local;
11625 klass = method->klass;
11626 image = method->klass->image;
11628 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11630 if ((res = mono_marshal_find_in_cache (cache, method)))
11633 sig = mono_method_signature (method);
11634 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11636 /* add "this" and exception param */
11637 param_count = sig->param_count + sig->hasthis + 1;
11639 /* dup & extend signature */
11640 csig = mono_metadata_signature_alloc (image, param_count);
11641 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11642 memcpy (csig, sig, sig_size);
11643 csig->param_count = param_count;
11646 csig->call_convention = MONO_CALL_DEFAULT;
11648 if (sig->hasthis) {
11650 csig->params [0] = &klass->byval_arg;
11651 /* move params up by one */
11652 for (i = 0; i < sig->param_count; i++)
11653 csig->params [i + 1] = sig->params [i];
11656 /* setup exception param as byref+[out] */
11657 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11658 &mono_defaults.exception_class->byval_arg);
11659 csig->params [param_count - 1]->byref = 1;
11660 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11662 /* convert struct return to object */
11663 if (MONO_TYPE_ISSTRUCT (sig->ret))
11664 csig->ret = &mono_defaults.object_class->byval_arg;
11666 #ifndef DISABLE_JIT
11667 /* local 0 (temp for exception object) */
11668 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11670 /* local 1 (temp for result) */
11671 if (!MONO_TYPE_IS_VOID (sig->ret))
11672 mono_mb_add_local (mb, sig->ret);
11674 if (mono_threads_is_coop_enabled ()) {
11675 /* local 4, the local to be used when calling the reset_blocking funcs */
11676 /* tons of code hardcode 3 to be the return var */
11677 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11678 /* local 5, the local used to get a stack address for suspend funcs */
11679 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11682 /* clear exception arg */
11683 mono_mb_emit_ldarg (mb, param_count - 1);
11684 mono_mb_emit_byte (mb, CEE_LDNULL);
11685 mono_mb_emit_byte (mb, CEE_STIND_REF);
11687 if (mono_threads_is_coop_enabled ()) {
11688 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11689 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11690 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11691 mono_mb_emit_stloc (mb, coop_gc_var);
11695 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11696 clause->try_offset = mono_mb_get_label (mb);
11698 /* push method's args */
11699 for (i = 0; i < param_count - 1; i++) {
11703 mono_mb_emit_ldarg (mb, i);
11705 /* get the byval type of the param */
11706 klass = mono_class_from_mono_type (csig->params [i]);
11707 type = &klass->byval_arg;
11709 /* unbox struct args */
11710 if (MONO_TYPE_ISSTRUCT (type)) {
11711 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11713 /* byref args & and the "this" arg must remain a ptr.
11714 Otherwise make a copy of the value type */
11715 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11716 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11718 csig->params [i] = &mono_defaults.object_class->byval_arg;
11723 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11724 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11726 mono_mb_emit_op (mb, CEE_CALL, method);
11728 /* save result at local 1 */
11729 if (!MONO_TYPE_IS_VOID (sig->ret))
11730 mono_mb_emit_stloc (mb, 1);
11732 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11735 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11736 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11737 clause->data.catch_class = mono_defaults.object_class;
11739 clause->handler_offset = mono_mb_get_label (mb);
11741 /* store exception at local 0 */
11742 mono_mb_emit_stloc (mb, 0);
11743 mono_mb_emit_ldarg (mb, param_count - 1);
11744 mono_mb_emit_ldloc (mb, 0);
11745 mono_mb_emit_byte (mb, CEE_STIND_REF);
11746 mono_mb_emit_branch (mb, CEE_LEAVE);
11748 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11750 mono_mb_set_clauses (mb, 1, clause);
11752 mono_mb_patch_branch (mb, pos_leave);
11755 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11756 mono_mb_emit_ldloc (mb, 1);
11758 /* box the return value */
11759 if (MONO_TYPE_ISSTRUCT (sig->ret))
11760 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11763 if (mono_threads_is_coop_enabled ()) {
11764 /* XXX merge reset_blocking_end with detach */
11765 mono_mb_emit_ldloc (mb, coop_gc_var);
11766 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11767 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11770 mono_mb_emit_byte (mb, CEE_RET);
11773 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11780 * mono_marshal_free_dynamic_wrappers:
11782 * Free wrappers of the dynamic method METHOD.
11785 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11787 MonoImage *image = method->klass->image;
11789 g_assert (method_is_dynamic (method));
11791 /* This could be called during shutdown */
11792 if (marshal_mutex_initialized)
11793 mono_marshal_lock ();
11795 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11796 * they could be shared with other methods ?
11798 if (image->wrapper_caches.runtime_invoke_direct_cache)
11799 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11800 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11801 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11802 // FIXME: Need to clear the caches in other images as well
11803 if (image->delegate_bound_static_invoke_cache)
11804 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11806 if (marshal_mutex_initialized)
11807 mono_marshal_unlock ();