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)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
51 /* #define DEBUG_RUNTIME_CODE */
53 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
57 #include "mono/cil/opcode.def"
63 * This mutex protects the various marshalling related caches in MonoImage
64 * and a few other data structures static to this file.
66 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
67 * runtime locking latice. Which means it can take simple locks suck as the image lock.
69 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
70 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
71 static mono_mutex_t marshal_mutex;
72 static gboolean marshal_mutex_initialized;
74 static MonoNativeTlsKey last_error_tls_id;
76 static MonoNativeTlsKey load_type_info_tls_id;
78 static gboolean use_aot_wrappers;
81 delegate_hash_table_add (MonoDelegate *d);
84 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
87 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
108 mono_string_new_len_wrapper (const char *text, guint length);
111 mono_string_from_byvalstr (const char *data, int len);
114 mono_string_from_byvalwstr (gunichar2 *data, int len);
117 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
120 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
123 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
126 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
128 static MonoAsyncResult *
129 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
135 mono_marshal_set_last_error_windows (int error);
138 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
165 mono_signature_no_pinvoke (MonoMethod *method)
167 MonoMethodSignature *sig = mono_method_signature (method);
169 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
170 sig->pinvoke = FALSE;
177 mono_marshal_init_tls (void)
179 mono_native_tls_alloc (&last_error_tls_id, NULL);
180 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
184 mono_marshal_init (void)
186 static gboolean module_initialized = FALSE;
188 if (!module_initialized) {
189 module_initialized = TRUE;
190 mono_os_mutex_init_recursive (&marshal_mutex);
191 marshal_mutex_initialized = TRUE;
193 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
194 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
195 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
196 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
197 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
198 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
199 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
200 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
201 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
202 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
203 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
204 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
205 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
206 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
207 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
208 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
209 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
210 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
211 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
212 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
213 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
214 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
215 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
216 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
217 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
218 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
219 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
220 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
221 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
222 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
223 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
224 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
225 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
226 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
227 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
228 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
229 register_icall (g_free, "g_free", "void ptr", FALSE);
230 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
231 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
232 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
233 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
234 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
235 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
236 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
237 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
238 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
239 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
241 mono_cominterop_init ();
242 mono_remoting_init ();
244 if (mono_threads_is_coop_enabled ()) {
245 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
246 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
247 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
248 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
254 mono_marshal_cleanup (void)
256 mono_cominterop_cleanup ();
258 mono_native_tls_free (load_type_info_tls_id);
259 mono_native_tls_free (last_error_tls_id);
260 mono_os_mutex_destroy (&marshal_mutex);
261 marshal_mutex_initialized = FALSE;
265 mono_marshal_lock_internal (void)
267 mono_marshal_lock ();
271 mono_marshal_unlock_internal (void)
273 mono_marshal_unlock ();
277 mono_delegate_to_ftnptr (MonoDelegate *delegate)
279 MonoMethod *method, *wrapper;
281 uint32_t target_handle = 0;
286 if (delegate->delegate_trampoline)
287 return delegate->delegate_trampoline;
289 klass = ((MonoObject *)delegate)->vtable->klass;
290 g_assert (klass->delegate);
292 method = delegate->method;
294 if (mono_method_signature (method)->pinvoke) {
295 const char *exc_class, *exc_arg;
298 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
300 g_assert (exc_class);
301 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
306 if (delegate->target) {
307 /* Produce a location which can be embedded in JITted code */
308 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
311 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
313 delegate->delegate_trampoline = mono_compile_method (wrapper);
315 // Add the delegate to the delegate hash table
316 delegate_hash_table_add (delegate);
318 /* when the object is collected, collect the dynamic method, too */
319 mono_object_register_finalizer ((MonoObject*)delegate);
321 return delegate->delegate_trampoline;
325 * this hash table maps from a delegate trampoline object to a weak reference
326 * of the delegate. As an optimizations with a non-moving GC we store the
327 * object pointer itself, otherwise we use a GC handle.
329 static GHashTable *delegate_hash_table;
332 delegate_hash_table_new (void) {
333 return g_hash_table_new (NULL, NULL);
337 delegate_hash_table_remove (MonoDelegate *d)
339 guint32 gchandle = 0;
341 mono_marshal_lock ();
342 if (delegate_hash_table == NULL)
343 delegate_hash_table = delegate_hash_table_new ();
344 if (mono_gc_is_moving ())
345 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
346 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
347 mono_marshal_unlock ();
348 if (gchandle && mono_gc_is_moving ())
349 mono_gchandle_free (gchandle);
353 delegate_hash_table_add (MonoDelegate *d)
356 guint32 old_gchandle;
358 mono_marshal_lock ();
359 if (delegate_hash_table == NULL)
360 delegate_hash_table = delegate_hash_table_new ();
361 if (mono_gc_is_moving ()) {
362 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
363 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
364 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
366 mono_gchandle_free (old_gchandle);
368 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
370 mono_marshal_unlock ();
374 * mono_marshal_use_aot_wrappers:
376 * Instructs this module to use AOT compatible wrappers.
379 mono_marshal_use_aot_wrappers (gboolean use)
381 use_aot_wrappers = use;
385 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
387 static MonoClass *UnmanagedFunctionPointerAttribute;
388 MonoCustomAttrInfo *cinfo;
389 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
391 if (!UnmanagedFunctionPointerAttribute)
392 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
394 /* The attribute is only available in Net 2.0 */
395 if (UnmanagedFunctionPointerAttribute) {
397 * The pinvoke attributes are stored in a real custom attribute so we have to
400 cinfo = mono_custom_attrs_from_class (klass);
401 if (cinfo && !mono_runtime_get_no_exec ()) {
403 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
405 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
407 if (!mono_error_ok (&error)) {
408 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
409 mono_error_cleanup (&error);
413 mono_custom_attrs_free (cinfo);
419 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
427 mono_marshal_lock ();
428 if (delegate_hash_table == NULL)
429 delegate_hash_table = delegate_hash_table_new ();
431 if (mono_gc_is_moving ()) {
432 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
433 mono_marshal_unlock ();
435 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
439 d = g_hash_table_lookup (delegate_hash_table, ftn);
440 mono_marshal_unlock ();
443 /* This is a native function, so construct a delegate for it */
444 MonoMethodSignature *sig;
446 MonoMarshalSpec **mspecs;
447 MonoMethod *invoke = mono_get_delegate_invoke (klass);
448 MonoMethodPInvoke piinfo;
449 MonoObject *this_obj;
452 if (use_aot_wrappers) {
453 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
454 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
456 memset (&piinfo, 0, sizeof (piinfo));
457 parse_unmanaged_function_pointer_attr (klass, &piinfo);
459 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
460 mono_method_get_marshal_info (invoke, mspecs);
461 /* Freed below so don't alloc from mempool */
462 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
465 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
468 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
470 mono_metadata_free_marshal_spec (mspecs [i]);
475 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
476 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
479 if (d->object.vtable->domain != mono_domain_get ())
480 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
486 mono_delegate_free_ftnptr (MonoDelegate *delegate)
491 delegate_hash_table_remove (delegate);
493 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
495 if (!delegate->target) {
496 /* The wrapper method is shared between delegates -> no need to free it */
505 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
508 method = mono_jit_info_get_method (ji);
509 method_data = ((MonoMethodWrapper*)method)->method_data;
511 /*the target gchandle is the first entry after size and the wrapper itself.*/
512 gchandle = GPOINTER_TO_UINT (method_data [2]);
515 mono_gchandle_free (gchandle);
517 mono_runtime_free_method (mono_object_domain (delegate), method);
522 mono_string_from_byvalstr (const char *data, int max_len)
524 MonoDomain *domain = mono_domain_get ();
530 while (len < max_len - 1 && data [len])
533 return mono_string_new_len (domain, data, len);
537 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
539 MonoDomain *domain = mono_domain_get ();
545 while (data [len]) len++;
547 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
551 mono_array_to_savearray (MonoArray *array)
556 g_assert_not_reached ();
561 mono_array_to_lparray (MonoArray *array)
564 gpointer *nativeArray = NULL;
565 int nativeArraySize = 0;
575 klass = array->obj.vtable->klass;
577 switch (klass->element_class->byval_arg.type) {
579 g_assert_not_reached ();
581 case MONO_TYPE_CLASS:
582 nativeArraySize = array->max_length;
583 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
584 for(i = 0; i < nativeArraySize; ++i)
585 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
588 case MONO_TYPE_BOOLEAN:
601 case MONO_TYPE_VALUETYPE:
605 case MONO_TYPE_GENERICINST:
606 case MONO_TYPE_OBJECT:
607 case MONO_TYPE_ARRAY:
608 case MONO_TYPE_SZARRAY:
609 case MONO_TYPE_STRING:
611 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
612 g_assert_not_reached ();
615 return array->vector;
619 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
630 klass = array->obj.vtable->klass;
632 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
633 for(i = 0; i < array->max_length; ++i)
634 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
641 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
643 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
645 if (elclass == mono_defaults.byte_class) {
646 GError *error = NULL;
650 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
653 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
657 g_error_free (error);
660 g_assert_not_reached ();
664 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
666 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
670 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
672 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
674 if (elclass == mono_defaults.byte_class) {
676 GError *error = NULL;
678 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
680 MonoException *exc = mono_get_exception_argument ("string", error->message);
681 g_error_free (error);
682 mono_raise_exception (exc);
685 memcpy (native_arr, as, MIN (strlen (as), elnum));
688 g_assert_not_reached ();
693 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
695 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
698 static MonoStringBuilder *
699 mono_string_builder_new (int starting_string_length)
701 static MonoClass *string_builder_class;
702 static MonoMethod *sb_ctor;
703 static void *args [1];
704 int initial_len = starting_string_length;
710 MonoMethodDesc *desc;
713 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
714 g_assert (string_builder_class);
715 desc = mono_method_desc_new (":.ctor(int)", FALSE);
716 m = mono_method_desc_search_in_class (desc, string_builder_class);
718 mono_method_desc_free (desc);
719 mono_memory_barrier ();
723 // We make a new array in the _to_builder function, so this
724 // array will always be garbage collected.
725 args [0] = &initial_len;
727 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
731 mono_runtime_invoke (sb_ctor, sb, args, &exc);
734 g_assert (sb->chunkChars->max_length >= initial_len);
740 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
742 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
743 gunichar2 *charSrc = (gunichar2 *)text;
744 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
746 sb->chunkLength = string_len;
752 mono_string_utf16_to_builder2 (gunichar2 *text)
758 for (len = 0; text [len] != 0; ++len);
760 MonoStringBuilder *sb = mono_string_builder_new (len);
761 mono_string_utf16_to_builder (sb, text);
767 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
772 int len = strlen (text);
773 if (len > mono_string_builder_capacity (sb))
774 len = mono_string_builder_capacity (sb);
776 GError *error = NULL;
778 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
781 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
782 mono_string_utf16_to_builder_copy (sb, ut, copied);
784 g_error_free (error);
790 mono_string_utf8_to_builder2 (char *text)
795 int len = strlen (text);
796 MonoStringBuilder *sb = mono_string_builder_new (len);
797 mono_string_utf8_to_builder (sb, text);
804 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
810 for (len = 0; text [len] != 0; ++len);
812 if (len > mono_string_builder_capacity (sb))
813 len = mono_string_builder_capacity (sb);
815 mono_string_utf16_to_builder_copy (sb, text, len);
819 * mono_string_builder_to_utf8:
820 * @sb: the string builder
822 * Converts to utf8 the contents of the MonoStringBuilder.
824 * Returns: a utf8 string with the contents of the StringBuilder.
826 * The return value must be released with g_free.
829 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
831 GError *error = NULL;
837 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
839 guint str_len = mono_string_builder_string_length (sb);
841 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
844 g_error_free (error);
846 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
849 guint len = mono_string_builder_capacity (sb) + 1;
850 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
851 g_assert (str_len < len);
852 memcpy (res, tmp, str_len * sizeof (gchar));
863 * mono_string_builder_to_utf16:
864 * @sb: the string builder
866 * Converts to utf16 the contents of the MonoStringBuilder.
868 * Returns: a utf16 string with the contents of the StringBuilder.
870 * The return value must not be freed.
873 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
878 g_assert (sb->chunkChars);
880 guint len = mono_string_builder_capacity (sb);
885 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
891 MonoStringBuilder* chunk = sb;
893 if (chunk->chunkLength > 0) {
894 // Check that we will not overrun our boundaries.
895 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
897 if (chunk->chunkLength <= len) {
898 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
900 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
903 len -= chunk->chunkLength;
905 chunk = chunk->chunkPrevious;
906 } while (chunk != NULL);
912 mono_string_to_lpstr (MonoString *s)
917 GError *error = NULL;
923 as = CoTaskMemAlloc (1);
928 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
930 MonoException *exc = mono_get_exception_argument ("string", error->message);
931 g_error_free (error);
932 mono_raise_exception(exc);
935 as = CoTaskMemAlloc (len + 1);
936 memcpy (as, tmp, len + 1);
941 return mono_string_to_utf8 (s);
946 mono_string_to_ansibstr (MonoString *string_obj)
948 g_error ("UnmanagedMarshal.BStr is not implemented.");
953 * mono_string_to_byvalstr:
954 * @dst: Where to store the null-terminated utf8 decoded string.
955 * @src: the MonoString to copy.
956 * @size: the maximum number of bytes to copy.
958 * Copies the MonoString pointed to by @src as a utf8 string
959 * into @dst, it copies at most @size bytes into the destination.
962 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
967 g_assert (dst != NULL);
970 memset (dst, 0, size);
974 s = mono_string_to_utf8 (src);
975 len = MIN (size, strlen (s));
978 memcpy (dst, s, len);
983 * mono_string_to_byvalwstr:
984 * @dst: Where to store the null-terminated utf16 decoded string.
985 * @src: the MonoString to copy.
986 * @size: the maximum number of bytes to copy.
988 * Copies the MonoString pointed to by @src as a utf16 string into
989 * @dst, it copies at most @size bytes into the destination (including
990 * a terminating 16-bit zero terminator).
993 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
997 g_assert (dst != NULL);
1001 memset (dst, 0, size * 2);
1005 len = MIN (size, (mono_string_length (src)));
1006 memcpy (dst, mono_string_chars (src), size * 2);
1007 if (size <= mono_string_length (src))
1009 *((gunichar2 *) dst + len) = 0;
1013 mono_string_new_len_wrapper (const char *text, guint length)
1015 return mono_string_new_len (mono_domain_get (), text, length);
1021 * mono_mb_emit_exception_marshal_directive:
1023 * This function assumes ownership of MSG, which should be malloc-ed.
1026 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1031 s = mono_image_strdup (mb->method->klass->image, msg);
1036 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1039 #endif /* !DISABLE_JIT */
1042 mono_type_to_ldind (MonoType *type)
1048 switch (type->type) {
1050 return CEE_LDIND_I1;
1052 case MONO_TYPE_BOOLEAN:
1053 return CEE_LDIND_U1;
1055 return CEE_LDIND_I2;
1057 case MONO_TYPE_CHAR:
1058 return CEE_LDIND_U2;
1060 return CEE_LDIND_I4;
1062 return CEE_LDIND_U4;
1066 case MONO_TYPE_FNPTR:
1068 case MONO_TYPE_CLASS:
1069 case MONO_TYPE_STRING:
1070 case MONO_TYPE_OBJECT:
1071 case MONO_TYPE_SZARRAY:
1072 case MONO_TYPE_ARRAY:
1073 return CEE_LDIND_REF;
1076 return CEE_LDIND_I8;
1078 return CEE_LDIND_R4;
1080 return CEE_LDIND_R8;
1081 case MONO_TYPE_VALUETYPE:
1082 if (type->data.klass->enumtype) {
1083 type = mono_class_enum_basetype (type->data.klass);
1087 case MONO_TYPE_TYPEDBYREF:
1089 case MONO_TYPE_GENERICINST:
1090 type = &type->data.generic_class->container_class->byval_arg;
1093 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1099 mono_type_to_stind (MonoType *type)
1105 switch (type->type) {
1108 case MONO_TYPE_BOOLEAN:
1109 return CEE_STIND_I1;
1112 case MONO_TYPE_CHAR:
1113 return CEE_STIND_I2;
1116 return CEE_STIND_I4;
1120 case MONO_TYPE_FNPTR:
1122 case MONO_TYPE_CLASS:
1123 case MONO_TYPE_STRING:
1124 case MONO_TYPE_OBJECT:
1125 case MONO_TYPE_SZARRAY:
1126 case MONO_TYPE_ARRAY:
1127 return CEE_STIND_REF;
1130 return CEE_STIND_I8;
1132 return CEE_STIND_R4;
1134 return CEE_STIND_R8;
1135 case MONO_TYPE_VALUETYPE:
1136 if (type->data.klass->enumtype) {
1137 type = mono_class_enum_basetype (type->data.klass);
1141 case MONO_TYPE_TYPEDBYREF:
1143 case MONO_TYPE_GENERICINST:
1144 type = &type->data.generic_class->container_class->byval_arg;
1147 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1155 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1158 case MONO_MARSHAL_CONV_BOOL_I4:
1159 mono_mb_emit_ldloc (mb, 1);
1160 mono_mb_emit_ldloc (mb, 0);
1161 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1162 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1163 mono_mb_emit_byte (mb, 3);
1164 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1165 mono_mb_emit_byte (mb, CEE_BR_S);
1166 mono_mb_emit_byte (mb, 1);
1167 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1168 mono_mb_emit_byte (mb, CEE_STIND_I1);
1170 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1174 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1175 mono_mb_emit_byte (mb, 3);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1177 mono_mb_emit_byte (mb, CEE_BR_S);
1178 mono_mb_emit_byte (mb, 1);
1179 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1180 mono_mb_emit_byte (mb, CEE_STIND_I1);
1182 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1183 MonoClass *eklass = NULL;
1186 if (type->type == MONO_TYPE_SZARRAY) {
1187 eklass = type->data.klass;
1189 g_assert_not_reached ();
1192 esize = mono_class_native_size (eklass, NULL);
1194 /* create a new array */
1195 mono_mb_emit_ldloc (mb, 1);
1196 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1197 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1198 mono_mb_emit_byte (mb, CEE_STIND_I);
1200 if (eklass->blittable) {
1201 /* copy the elements */
1202 mono_mb_emit_ldloc (mb, 1);
1203 mono_mb_emit_byte (mb, CEE_LDIND_I);
1204 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1205 mono_mb_emit_byte (mb, CEE_ADD);
1206 mono_mb_emit_ldloc (mb, 0);
1207 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1208 mono_mb_emit_byte (mb, CEE_PREFIX1);
1209 mono_mb_emit_byte (mb, CEE_CPBLK);
1212 int array_var, src_var, dst_var, index_var;
1213 guint32 label2, label3;
1215 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1216 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1220 mono_mb_emit_ldloc (mb, 1);
1221 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1222 mono_mb_emit_stloc (mb, array_var);
1224 /* save the old src pointer */
1225 mono_mb_emit_ldloc (mb, 0);
1226 mono_mb_emit_stloc (mb, src_var);
1227 /* save the old dst pointer */
1228 mono_mb_emit_ldloc (mb, 1);
1229 mono_mb_emit_stloc (mb, dst_var);
1231 /* Emit marshalling loop */
1232 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1233 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1234 mono_mb_emit_stloc (mb, index_var);
1237 label2 = mono_mb_get_label (mb);
1238 mono_mb_emit_ldloc (mb, index_var);
1239 mono_mb_emit_ldloc (mb, array_var);
1240 mono_mb_emit_byte (mb, CEE_LDLEN);
1241 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1243 /* src is already set */
1246 mono_mb_emit_ldloc (mb, array_var);
1247 mono_mb_emit_ldloc (mb, index_var);
1248 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1249 mono_mb_emit_stloc (mb, 1);
1251 /* Do the conversion */
1252 emit_struct_conv (mb, eklass, TRUE);
1255 mono_mb_emit_add_to_local (mb, index_var, 1);
1257 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1259 mono_mb_patch_branch (mb, label3);
1261 /* restore the old src pointer */
1262 mono_mb_emit_ldloc (mb, src_var);
1263 mono_mb_emit_stloc (mb, 0);
1264 /* restore the old dst pointer */
1265 mono_mb_emit_ldloc (mb, dst_var);
1266 mono_mb_emit_stloc (mb, 1);
1270 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1271 MonoClass *eclass = mono_defaults.char_class;
1273 /* create a new array */
1274 mono_mb_emit_ldloc (mb, 1);
1275 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1276 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1277 mono_mb_emit_byte (mb, CEE_STIND_REF);
1279 mono_mb_emit_ldloc (mb, 1);
1280 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1281 mono_mb_emit_ldloc (mb, 0);
1282 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1283 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1286 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1287 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1288 mono_mb_emit_ldloc (mb, 1);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1291 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1293 mono_mb_emit_ldloc (mb, 1);
1294 mono_mb_emit_ldloc (mb, 0);
1295 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1297 mono_mb_emit_byte (mb, CEE_STIND_REF);
1299 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1300 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1304 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1306 mono_mb_emit_ldloc (mb, 1);
1307 mono_mb_emit_ldloc (mb, 0);
1308 mono_mb_emit_icall (mb, mono_string_from_utf16);
1310 mono_mb_emit_byte (mb, CEE_STIND_REF);
1312 case MONO_MARSHAL_CONV_STR_LPTSTR:
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_byte (mb, CEE_LDIND_I);
1317 mono_mb_emit_icall (mb, mono_string_from_utf16);
1319 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1321 mono_mb_emit_byte (mb, CEE_STIND_REF);
1323 case MONO_MARSHAL_CONV_STR_LPSTR:
1324 mono_mb_emit_ldloc (mb, 1);
1325 mono_mb_emit_ldloc (mb, 0);
1326 mono_mb_emit_byte (mb, CEE_LDIND_I);
1327 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1328 mono_mb_emit_byte (mb, CEE_STIND_REF);
1330 case MONO_MARSHAL_CONV_STR_LPWSTR:
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I);
1334 mono_mb_emit_icall (mb, mono_string_from_utf16);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1338 MonoClass *klass = mono_class_from_mono_type (type);
1339 int src_var, dst_var;
1341 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1342 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1344 /* *dst = new object */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1347 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 /* save the old src pointer */
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_stloc (mb, src_var);
1353 /* save the old dst pointer */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_stloc (mb, dst_var);
1357 /* dst = pointer to newly created object data */
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_byte (mb, CEE_LDIND_I);
1360 mono_mb_emit_icon (mb, sizeof (MonoObject));
1361 mono_mb_emit_byte (mb, CEE_ADD);
1362 mono_mb_emit_stloc (mb, 1);
1364 emit_struct_conv (mb, klass, TRUE);
1366 /* restore the old src pointer */
1367 mono_mb_emit_ldloc (mb, src_var);
1368 mono_mb_emit_stloc (mb, 0);
1369 /* restore the old dst pointer */
1370 mono_mb_emit_ldloc (mb, dst_var);
1371 mono_mb_emit_stloc (mb, 1);
1374 case MONO_MARSHAL_CONV_DEL_FTN: {
1375 MonoClass *klass = mono_class_from_mono_type (type);
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1379 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_byte (mb, CEE_LDIND_I);
1382 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1383 mono_mb_emit_byte (mb, CEE_STIND_REF);
1386 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1387 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1391 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1392 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1393 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1394 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1396 #endif /* DISABLE_COM */
1398 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1400 * Passing SafeHandles as ref does not allow the unmanaged code
1401 * to change the SafeHandle value. If the value is changed,
1402 * we should issue a diagnostic exception (NotSupportedException)
1403 * that informs the user that changes to handles in unmanaged code
1406 * Since we currently have no access to the original
1407 * SafeHandle that was used during the marshalling,
1408 * for now we just ignore this, and ignore/discard any
1409 * changes that might have happened to the handle.
1414 case MONO_MARSHAL_CONV_HANDLEREF: {
1416 * Passing HandleRefs in a struct that is ref()ed does not
1417 * copy the values back to the HandleRef
1422 case MONO_MARSHAL_CONV_STR_BSTR:
1423 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1424 case MONO_MARSHAL_CONV_STR_TBSTR:
1425 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1427 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1429 mono_mb_emit_exception_marshal_directive (mb, msg);
1436 conv_to_icall (MonoMarshalConv conv)
1439 case MONO_MARSHAL_CONV_STR_LPWSTR:
1440 return mono_marshal_string_to_utf16;
1441 case MONO_MARSHAL_CONV_LPWSTR_STR:
1442 return mono_string_from_utf16;
1443 case MONO_MARSHAL_CONV_LPTSTR_STR:
1444 return mono_string_new_wrapper;
1445 case MONO_MARSHAL_CONV_LPSTR_STR:
1446 return mono_string_new_wrapper;
1447 case MONO_MARSHAL_CONV_STR_LPTSTR:
1449 return mono_marshal_string_to_utf16;
1451 return mono_string_to_lpstr;
1453 case MONO_MARSHAL_CONV_STR_LPSTR:
1454 return mono_string_to_lpstr;
1455 case MONO_MARSHAL_CONV_STR_BSTR:
1456 return mono_string_to_bstr;
1457 case MONO_MARSHAL_CONV_BSTR_STR:
1458 return mono_string_from_bstr;
1459 case MONO_MARSHAL_CONV_STR_TBSTR:
1460 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1461 return mono_string_to_ansibstr;
1462 case MONO_MARSHAL_CONV_SB_LPSTR:
1463 return mono_string_builder_to_utf8;
1464 case MONO_MARSHAL_CONV_SB_LPTSTR:
1466 return mono_string_builder_to_utf16;
1468 return mono_string_builder_to_utf8;
1470 case MONO_MARSHAL_CONV_SB_LPWSTR:
1471 return mono_string_builder_to_utf16;
1472 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1473 return mono_array_to_savearray;
1474 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1475 return mono_array_to_lparray;
1476 case MONO_MARSHAL_FREE_LPARRAY:
1477 return mono_free_lparray;
1478 case MONO_MARSHAL_CONV_DEL_FTN:
1479 return mono_delegate_to_ftnptr;
1480 case MONO_MARSHAL_CONV_FTN_DEL:
1481 return mono_ftnptr_to_delegate;
1482 case MONO_MARSHAL_CONV_LPSTR_SB:
1483 return mono_string_utf8_to_builder;
1484 case MONO_MARSHAL_CONV_LPTSTR_SB:
1486 return mono_string_utf16_to_builder;
1488 return mono_string_utf8_to_builder;
1490 case MONO_MARSHAL_CONV_LPWSTR_SB:
1491 return mono_string_utf16_to_builder;
1492 case MONO_MARSHAL_FREE_ARRAY:
1493 return mono_marshal_free_array;
1494 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1495 return mono_string_to_byvalstr;
1496 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1497 return mono_string_to_byvalwstr;
1499 g_assert_not_reached ();
1506 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1511 case MONO_MARSHAL_CONV_BOOL_I4:
1512 mono_mb_emit_ldloc (mb, 1);
1513 mono_mb_emit_ldloc (mb, 0);
1514 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1515 mono_mb_emit_byte (mb, CEE_STIND_I4);
1517 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1518 mono_mb_emit_ldloc (mb, 1);
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1521 mono_mb_emit_byte (mb, CEE_NEG);
1522 mono_mb_emit_byte (mb, CEE_STIND_I2);
1524 case MONO_MARSHAL_CONV_STR_LPWSTR:
1525 case MONO_MARSHAL_CONV_STR_LPSTR:
1526 case MONO_MARSHAL_CONV_STR_LPTSTR:
1527 case MONO_MARSHAL_CONV_STR_BSTR:
1528 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1529 case MONO_MARSHAL_CONV_STR_TBSTR: {
1532 /* free space if free == true */
1533 mono_mb_emit_ldloc (mb, 2);
1534 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1535 mono_mb_emit_ldloc (mb, 1);
1536 mono_mb_emit_byte (mb, CEE_LDIND_I);
1537 mono_mb_emit_icall (mb, g_free);
1538 mono_mb_patch_short_branch (mb, pos);
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_ldloc (mb, 0);
1542 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1543 mono_mb_emit_icall (mb, conv_to_icall (conv));
1544 mono_mb_emit_byte (mb, CEE_STIND_I);
1547 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1548 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1549 case MONO_MARSHAL_CONV_DEL_FTN:
1550 mono_mb_emit_ldloc (mb, 1);
1551 mono_mb_emit_ldloc (mb, 0);
1552 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1553 mono_mb_emit_icall (mb, conv_to_icall (conv));
1554 mono_mb_emit_byte (mb, CEE_STIND_I);
1556 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1557 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1560 mono_mb_emit_ldloc (mb, 1); /* dst */
1561 mono_mb_emit_ldloc (mb, 0);
1562 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1563 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1564 mono_mb_emit_icall (mb, conv_to_icall (conv));
1567 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1568 MonoClass *eklass = NULL;
1571 if (type->type == MONO_TYPE_SZARRAY) {
1572 eklass = type->data.klass;
1574 g_assert_not_reached ();
1577 if (eklass->valuetype)
1578 esize = mono_class_native_size (eklass, NULL);
1580 esize = sizeof (gpointer);
1582 mono_mb_emit_ldloc (mb, 0);
1583 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1584 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1586 if (eklass->blittable) {
1587 mono_mb_emit_ldloc (mb, 1);
1588 mono_mb_emit_ldloc (mb, 0);
1589 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1590 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1591 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1592 mono_mb_emit_byte (mb, CEE_PREFIX1);
1593 mono_mb_emit_byte (mb, CEE_CPBLK);
1595 int array_var, src_var, dst_var, index_var;
1596 guint32 label2, label3;
1598 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1599 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1600 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1603 mono_mb_emit_ldloc (mb, 0);
1604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1605 mono_mb_emit_stloc (mb, array_var);
1607 /* save the old src pointer */
1608 mono_mb_emit_ldloc (mb, 0);
1609 mono_mb_emit_stloc (mb, src_var);
1610 /* save the old dst pointer */
1611 mono_mb_emit_ldloc (mb, 1);
1612 mono_mb_emit_stloc (mb, dst_var);
1614 /* Emit marshalling loop */
1615 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1616 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1617 mono_mb_emit_stloc (mb, index_var);
1620 label2 = mono_mb_get_label (mb);
1621 mono_mb_emit_ldloc (mb, index_var);
1622 mono_mb_emit_ldloc (mb, array_var);
1623 mono_mb_emit_byte (mb, CEE_LDLEN);
1624 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1627 mono_mb_emit_ldloc (mb, array_var);
1628 mono_mb_emit_ldloc (mb, index_var);
1629 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1630 mono_mb_emit_stloc (mb, 0);
1632 /* dst is already set */
1634 /* Do the conversion */
1635 emit_struct_conv (mb, eklass, FALSE);
1638 mono_mb_emit_add_to_local (mb, index_var, 1);
1640 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1642 mono_mb_patch_branch (mb, label3);
1644 /* restore the old src pointer */
1645 mono_mb_emit_ldloc (mb, src_var);
1646 mono_mb_emit_stloc (mb, 0);
1647 /* restore the old dst pointer */
1648 mono_mb_emit_ldloc (mb, dst_var);
1649 mono_mb_emit_stloc (mb, 1);
1652 mono_mb_patch_branch (mb, pos);
1655 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1656 mono_mb_emit_ldloc (mb, 0);
1657 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1658 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1660 mono_mb_emit_ldloc (mb, 1);
1661 mono_mb_emit_ldloc (mb, 0);
1662 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1663 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1664 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1665 mono_mb_patch_short_branch (mb, pos);
1668 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1669 int src_var, dst_var;
1671 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1672 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1674 mono_mb_emit_ldloc (mb, 0);
1675 mono_mb_emit_byte (mb, CEE_LDIND_I);
1676 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1678 /* save the old src pointer */
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_stloc (mb, src_var);
1681 /* save the old dst pointer */
1682 mono_mb_emit_ldloc (mb, 1);
1683 mono_mb_emit_stloc (mb, dst_var);
1685 /* src = pointer to object data */
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_I);
1688 mono_mb_emit_icon (mb, sizeof (MonoObject));
1689 mono_mb_emit_byte (mb, CEE_ADD);
1690 mono_mb_emit_stloc (mb, 0);
1692 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1694 /* restore the old src pointer */
1695 mono_mb_emit_ldloc (mb, src_var);
1696 mono_mb_emit_stloc (mb, 0);
1697 /* restore the old dst pointer */
1698 mono_mb_emit_ldloc (mb, dst_var);
1699 mono_mb_emit_stloc (mb, 1);
1701 mono_mb_patch_branch (mb, pos);
1706 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1707 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1708 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1709 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1711 #endif /* DISABLE_COM */
1713 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1719 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1720 mono_mb_patch_branch (mb, pos);
1722 /* Pull the handle field from SafeHandle */
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_I);
1726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_byte (mb, CEE_STIND_I);
1732 case MONO_MARSHAL_CONV_HANDLEREF: {
1733 mono_mb_emit_ldloc (mb, 1);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1736 mono_mb_emit_byte (mb, CEE_ADD);
1737 mono_mb_emit_byte (mb, CEE_LDIND_I);
1738 mono_mb_emit_byte (mb, CEE_STIND_I);
1743 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1744 MonoException *exc = mono_get_exception_not_implemented (msg);
1745 g_warning ("%s", msg);
1747 mono_raise_exception (exc);
1753 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1754 MonoMarshalNative string_encoding)
1756 MonoMarshalType *info;
1760 emit_struct_conv(mb, klass->parent, to_object);
1762 info = mono_marshal_load_type_info (klass);
1764 if (info->native_size == 0)
1767 if (klass->blittable) {
1768 int msize = mono_class_value_size (klass, NULL);
1769 g_assert (msize == info->native_size);
1770 mono_mb_emit_ldloc (mb, 1);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_icon (mb, msize);
1773 mono_mb_emit_byte (mb, CEE_PREFIX1);
1774 mono_mb_emit_byte (mb, CEE_CPBLK);
1776 mono_mb_emit_add_to_local (mb, 0, msize);
1777 mono_mb_emit_add_to_local (mb, 1, msize);
1781 if (klass != mono_defaults.safehandle_class) {
1782 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1783 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1784 mono_type_full_name (&klass->byval_arg));
1785 mono_mb_emit_exception_marshal_directive (mb, msg);
1790 for (i = 0; i < info->num_fields; i++) {
1791 MonoMarshalNative ntype;
1792 MonoMarshalConv conv;
1793 MonoType *ftype = info->fields [i].field->type;
1796 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1798 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1801 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1804 msize = klass->instance_size - info->fields [i].field->offset;
1805 usize = info->native_size - info->fields [i].offset;
1807 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1808 usize = info->fields [i + 1].offset - info->fields [i].offset;
1811 if (klass != mono_defaults.safehandle_class){
1813 * FIXME: Should really check for usize==0 and msize>0, but we apply
1814 * the layout to the managed structure as well.
1817 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1818 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1819 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1820 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1821 "reference field at the same offset as another field.",
1822 mono_type_full_name (&klass->byval_arg));
1827 case MONO_MARSHAL_CONV_NONE: {
1830 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1831 ftype->type == MONO_TYPE_U) {
1832 mono_mb_emit_ldloc (mb, 1);
1833 mono_mb_emit_ldloc (mb, 0);
1834 mono_mb_emit_byte (mb, CEE_LDIND_I);
1835 mono_mb_emit_byte (mb, CEE_STIND_I);
1846 case MONO_TYPE_BOOLEAN:
1849 case MONO_TYPE_CHAR:
1855 mono_mb_emit_ldloc (mb, 1);
1856 mono_mb_emit_ldloc (mb, 0);
1857 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1859 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1860 mono_mb_emit_byte (mb, CEE_STIND_I2);
1862 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1863 mono_mb_emit_byte (mb, CEE_STIND_I1);
1866 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1867 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1870 case MONO_TYPE_VALUETYPE: {
1871 int src_var, dst_var;
1873 if (ftype->data.klass->enumtype) {
1874 ftype = mono_class_enum_basetype (ftype->data.klass);
1878 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1879 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1881 /* save the old src pointer */
1882 mono_mb_emit_ldloc (mb, 0);
1883 mono_mb_emit_stloc (mb, src_var);
1884 /* save the old dst pointer */
1885 mono_mb_emit_ldloc (mb, 1);
1886 mono_mb_emit_stloc (mb, dst_var);
1888 emit_struct_conv (mb, ftype->data.klass, to_object);
1890 /* restore the old src pointer */
1891 mono_mb_emit_ldloc (mb, src_var);
1892 mono_mb_emit_stloc (mb, 0);
1893 /* restore the old dst pointer */
1894 mono_mb_emit_ldloc (mb, dst_var);
1895 mono_mb_emit_stloc (mb, 1);
1898 case MONO_TYPE_OBJECT: {
1901 static MonoMethod *variant_clear = NULL;
1902 static MonoMethod *get_object_for_native_variant = NULL;
1905 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1906 if (!get_object_for_native_variant)
1907 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1908 mono_mb_emit_ldloc (mb, 1);
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1911 mono_mb_emit_byte (mb, CEE_STIND_REF);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1917 static MonoMethod *get_native_variant_for_object = NULL;
1919 if (!get_native_variant_for_object)
1920 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1924 mono_mb_emit_ldloc (mb, 1);
1925 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1928 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1929 mono_mb_emit_exception_marshal_directive (mb, msg);
1935 g_warning ("marshaling type %02x not implemented", ftype->type);
1936 g_assert_not_reached ();
1941 int src_var, dst_var;
1943 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1944 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1946 /* save the old src pointer */
1947 mono_mb_emit_ldloc (mb, 0);
1948 mono_mb_emit_stloc (mb, src_var);
1949 /* save the old dst pointer */
1950 mono_mb_emit_ldloc (mb, 1);
1951 mono_mb_emit_stloc (mb, dst_var);
1954 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1956 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1958 /* restore the old src pointer */
1959 mono_mb_emit_ldloc (mb, src_var);
1960 mono_mb_emit_stloc (mb, 0);
1961 /* restore the old dst pointer */
1962 mono_mb_emit_ldloc (mb, dst_var);
1963 mono_mb_emit_stloc (mb, 1);
1968 mono_mb_emit_add_to_local (mb, 0, usize);
1969 mono_mb_emit_add_to_local (mb, 1, msize);
1971 mono_mb_emit_add_to_local (mb, 0, msize);
1972 mono_mb_emit_add_to_local (mb, 1, usize);
1978 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1980 emit_struct_conv_full (mb, klass, to_object, -1);
1984 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1986 /* Call DestroyStructure */
1987 /* FIXME: Only do this if needed */
1988 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1989 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1990 mono_mb_emit_ldloc (mb, struct_var);
1991 mono_mb_emit_icall (mb, mono_struct_delete_old);
1995 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1997 int pos_noabort, pos_noex;
1999 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2000 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2001 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2002 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2005 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2007 mono_mb_emit_icall (mb, checkpoint_func);
2008 /* Throw the exception returned by the checkpoint function, if any */
2009 mono_mb_emit_byte (mb, CEE_DUP);
2010 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2011 mono_mb_emit_byte (mb, CEE_THROW);
2012 mono_mb_patch_branch (mb, pos_noex);
2013 mono_mb_emit_byte (mb, CEE_POP);
2015 mono_mb_patch_branch (mb, pos_noabort);
2019 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2021 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2024 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2028 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2030 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2034 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2036 emit_thread_interrupt_checkpoint (mb);
2040 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2042 emit_thread_force_interrupt_checkpoint (mb);
2045 #endif /* DISABLE_JIT */
2047 static MonoAsyncResult *
2048 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2050 MonoMulticastDelegate *mcast_delegate;
2054 g_assert (delegate);
2055 mcast_delegate = (MonoMulticastDelegate *) delegate;
2056 if (mcast_delegate->delegates != NULL)
2057 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2059 #ifndef DISABLE_REMOTING
2060 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2062 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2063 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2065 /* If the target is a proxy, make a direct call. Is proxy's work
2066 // to make the call asynchronous.
2068 MonoMethodMessage *msg;
2069 MonoDelegate *async_callback;
2071 MonoAsyncResult *ares;
2073 MonoArray *out_args;
2074 method = delegate->method;
2076 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2077 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2078 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2079 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2080 MONO_OBJECT_SETREF (msg, async_result, ares);
2081 msg->call_type = CallType_BeginInvoke;
2084 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2086 mono_raise_exception ((MonoException *) exc);
2092 klass = delegate->object.vtable->klass;
2094 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2096 method = mono_get_delegate_invoke (klass);
2099 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2105 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2107 int i, params_var, tmp_var;
2109 /* allocate local (pointer) *params[] */
2110 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2111 /* allocate local (pointer) tmp */
2112 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2114 /* alloate space on stack to store an array of pointers to the arguments */
2115 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2116 mono_mb_emit_byte (mb, CEE_PREFIX1);
2117 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2118 mono_mb_emit_stloc (mb, params_var);
2121 mono_mb_emit_ldloc (mb, params_var);
2122 mono_mb_emit_stloc (mb, tmp_var);
2124 if (save_this && sig->hasthis) {
2125 mono_mb_emit_ldloc (mb, tmp_var);
2126 mono_mb_emit_ldarg_addr (mb, 0);
2127 mono_mb_emit_byte (mb, CEE_STIND_I);
2128 /* tmp = tmp + sizeof (gpointer) */
2129 if (sig->param_count)
2130 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2134 for (i = 0; i < sig->param_count; i++) {
2135 mono_mb_emit_ldloc (mb, tmp_var);
2136 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2137 mono_mb_emit_byte (mb, CEE_STIND_I);
2138 /* tmp = tmp + sizeof (gpointer) */
2139 if (i < (sig->param_count - 1))
2140 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2146 #endif /* DISABLE_JIT */
2149 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2153 GString *res = g_string_new ("");
2156 g_string_append (res, prefix);
2157 g_string_append_c (res, '_');
2160 mono_type_get_desc (res, sig->ret, FALSE);
2163 g_string_append (res, "__this__");
2165 for (i = 0; i < sig->param_count; ++i) {
2166 g_string_append_c (res, '_');
2167 mono_type_get_desc (res, sig->params [i], FALSE);
2170 g_string_free (res, FALSE);
2175 * mono_marshal_get_string_encoding:
2177 * Return the string encoding which should be used for a given parameter.
2179 static MonoMarshalNative
2180 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2182 /* First try the parameter marshal info */
2184 if (spec->native == MONO_NATIVE_LPARRAY) {
2185 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2186 return spec->data.array_data.elem_type;
2189 return spec->native;
2193 return MONO_NATIVE_LPSTR;
2195 /* Then try the method level marshal info */
2196 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2197 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2198 return MONO_NATIVE_LPSTR;
2199 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2200 return MONO_NATIVE_LPWSTR;
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2203 return MONO_NATIVE_LPWSTR;
2205 return MONO_NATIVE_LPSTR;
2208 return MONO_NATIVE_LPSTR;
2212 static MonoMarshalConv
2213 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2215 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2218 case MONO_NATIVE_LPWSTR:
2219 return MONO_MARSHAL_CONV_STR_LPWSTR;
2220 case MONO_NATIVE_LPSTR:
2221 case MONO_NATIVE_VBBYREFSTR:
2222 return MONO_MARSHAL_CONV_STR_LPSTR;
2223 case MONO_NATIVE_LPTSTR:
2224 return MONO_MARSHAL_CONV_STR_LPTSTR;
2225 case MONO_NATIVE_BSTR:
2226 return MONO_MARSHAL_CONV_STR_BSTR;
2232 static MonoMarshalConv
2233 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2235 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2238 case MONO_NATIVE_LPWSTR:
2239 return MONO_MARSHAL_CONV_SB_LPWSTR;
2241 case MONO_NATIVE_LPSTR:
2242 return MONO_MARSHAL_CONV_SB_LPSTR;
2244 case MONO_NATIVE_LPTSTR:
2245 return MONO_MARSHAL_CONV_SB_LPTSTR;
2252 static MonoMarshalConv
2253 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2255 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2260 case MONO_NATIVE_LPWSTR:
2262 return MONO_MARSHAL_CONV_LPWSTR_STR;
2263 case MONO_NATIVE_LPSTR:
2264 case MONO_NATIVE_VBBYREFSTR:
2265 return MONO_MARSHAL_CONV_LPSTR_STR;
2266 case MONO_NATIVE_LPTSTR:
2267 return MONO_MARSHAL_CONV_LPTSTR_STR;
2268 case MONO_NATIVE_BSTR:
2269 return MONO_MARSHAL_CONV_BSTR_STR;
2275 static MonoMarshalConv
2276 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2278 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2283 case MONO_NATIVE_LPWSTR:
2285 * mono_string_builder_to_utf16 does not allocate a
2286 * new buffer, so no need to free it.
2289 return MONO_MARSHAL_CONV_LPWSTR_SB;
2290 case MONO_NATIVE_LPSTR:
2291 return MONO_MARSHAL_CONV_LPSTR_SB;
2293 case MONO_NATIVE_LPTSTR:
2294 return MONO_MARSHAL_CONV_LPTSTR_SB;
2302 * Return whenever a field of a native structure or an array member needs to
2306 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2308 MonoMarshalNative encoding;
2311 case MONO_TYPE_VALUETYPE:
2312 /* FIXME: Optimize this */
2314 case MONO_TYPE_OBJECT:
2315 case MONO_TYPE_CLASS:
2316 if (t->data.klass == mono_defaults.stringbuilder_class) {
2318 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2322 case MONO_TYPE_STRING:
2323 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2324 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2331 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2334 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2337 mono_marshal_lock ();
2340 g_hash_table_new (hash_func, equal_func);
2341 mono_memory_barrier ();
2344 mono_marshal_unlock ();
2350 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2352 return get_cache (var, hash_func, equal_func);
2356 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2360 mono_marshal_lock ();
2361 res = g_hash_table_lookup (cache, key);
2362 mono_marshal_unlock ();
2369 * Create a MonoMethod from MB, set INFO as wrapper info.
2372 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2373 int max_stack, WrapperInfo *info)
2377 res = mono_mb_create_method (mb, sig, max_stack);
2379 mono_marshal_set_wrapper_info (res, info);
2383 /* Create the method from the builder and place it in the cache */
2385 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2386 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2387 int max_stack, WrapperInfo *info, gboolean *out_found)
2394 mono_marshal_lock ();
2395 res = g_hash_table_lookup (cache, key);
2396 mono_marshal_unlock ();
2399 newm = mono_mb_create_method (mb, sig, max_stack);
2400 mono_marshal_lock ();
2401 res = g_hash_table_lookup (cache, key);
2404 g_hash_table_insert (cache, key, res);
2405 mono_marshal_set_wrapper_info (res, info);
2406 mono_marshal_unlock ();
2410 mono_marshal_unlock ();
2411 mono_free_method (newm);
2419 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2420 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2423 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2427 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2430 int wrapper_type = wrapper->wrapper_type;
2433 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2436 info = mono_marshal_get_wrapper_info (wrapper);
2438 switch (wrapper_type) {
2439 case MONO_WRAPPER_REMOTING_INVOKE:
2440 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2441 case MONO_WRAPPER_XDOMAIN_INVOKE:
2442 m = info->d.remoting.method;
2443 if (wrapper->is_inflated) {
2447 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2448 * contains an uninflated method.
2450 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2451 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2455 case MONO_WRAPPER_SYNCHRONIZED:
2456 m = info->d.synchronized.method;
2457 if (wrapper->is_inflated) {
2460 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2461 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2465 case MONO_WRAPPER_UNBOX:
2466 return info->d.unbox.method;
2467 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2468 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2469 return info->d.managed_to_native.method;
2472 case MONO_WRAPPER_RUNTIME_INVOKE:
2473 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2474 return info->d.runtime_invoke.method;
2483 * mono_marshal_get_wrapper_info:
2485 * Retrieve the WrapperInfo structure associated with WRAPPER.
2488 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2490 g_assert (wrapper->wrapper_type);
2492 return mono_method_get_wrapper_data (wrapper, 1);
2496 * mono_marshal_set_wrapper_info:
2498 * Set the WrapperInfo structure associated with the wrapper
2499 * method METHOD to INFO.
2502 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2506 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2509 datav = ((MonoMethodWrapper *)method)->method_data;
2514 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2518 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2519 info->subtype = subtype;
2524 * get_wrapper_target_class:
2526 * Return the class where a wrapper method should be placed.
2529 get_wrapper_target_class (MonoImage *image)
2536 * - can't put all wrappers into an mscorlib class, because they reference
2537 * metadata (signature) so they should be put into the same image as the
2538 * method they wrap, so they are unloaded together.
2539 * - putting them into a class with a type initalizer could cause the
2540 * initializer to be executed which can be a problem if the wrappers are
2542 * - putting them into an inflated class can cause problems if the the
2543 * class is deleted because it references an image which is unloaded.
2544 * To avoid these problems, we put the wrappers into the <Module> class of
2547 if (image_is_dynamic (image)) {
2548 klass = ((MonoDynamicImage*)image)->wrappers_type;
2550 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2551 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2559 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2560 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2564 * check_generic_wrapper_cache:
2566 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2567 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2568 * generic method definition.
2571 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2574 MonoMethod *inst, *def;
2575 MonoGenericContext *ctx;
2577 g_assert (orig_method->is_inflated);
2578 ctx = mono_method_get_context (orig_method);
2581 * Look for the instance
2583 res = mono_marshal_find_in_cache (cache, key);
2588 * Look for the definition
2590 def = mono_marshal_find_in_cache (cache, def_key);
2593 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2594 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2596 mono_memory_barrier ();
2597 mono_marshal_lock ();
2598 res = g_hash_table_lookup (cache, key);
2600 g_hash_table_insert (cache, key, inst);
2603 mono_marshal_unlock ();
2610 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2613 MonoMethod *inst, *res;
2616 * We use the same cache for the generic definition and the instances.
2618 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2619 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2620 mono_memory_barrier ();
2621 mono_marshal_lock ();
2622 res = g_hash_table_lookup (cache, key);
2624 g_hash_table_insert (cache, key, inst);
2627 mono_marshal_unlock ();
2632 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2636 MonoMethod *inst, *def;
2639 * Look for the instance
2641 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2646 * Look for the definition
2648 def = mono_marshal_find_in_cache (cache, def_method->klass);
2650 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2651 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2654 mono_memory_barrier ();
2655 mono_marshal_lock ();
2656 res = g_hash_table_lookup (cache, orig_method->klass);
2658 g_hash_table_insert (cache, orig_method->klass, inst);
2661 mono_marshal_unlock ();
2668 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2671 MonoMethod *inst, *res;
2674 * We use the same cache for the generic definition and the instances.
2676 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2677 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2679 mono_memory_barrier ();
2680 mono_marshal_lock ();
2681 res = g_hash_table_lookup (cache, orig_method->klass);
2683 g_hash_table_insert (cache, orig_method->klass, inst);
2686 mono_marshal_unlock ();
2691 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2693 MonoMethodSignature *sig;
2694 MonoMethodBuilder *mb;
2699 MonoGenericContext *ctx = NULL;
2700 MonoMethod *orig_method = NULL;
2702 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2703 !strcmp (method->name, "BeginInvoke"));
2706 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2708 if (method->is_inflated) {
2709 orig_method = method;
2710 ctx = &((MonoMethodInflated*)method)->context;
2711 method = ((MonoMethodInflated*)method)->declaring;
2714 sig = mono_signature_no_pinvoke (method);
2720 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2721 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2725 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2726 (GHashFunc)mono_signature_hash,
2727 (GCompareFunc)mono_metadata_signature_equal);
2728 if ((res = mono_marshal_find_in_cache (cache, sig)))
2732 g_assert (sig->hasthis);
2734 name = mono_signature_to_name (sig, "begin_invoke");
2736 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2738 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2742 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2744 mono_mb_emit_ldarg (mb, 0);
2745 mono_mb_emit_ldloc (mb, params_var);
2746 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2747 mono_mb_emit_byte (mb, CEE_RET);
2752 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2753 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2755 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2763 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2765 MonoDomain *domain = mono_domain_get ();
2766 MonoAsyncResult *ares;
2767 MonoMethod *method = NULL;
2768 MonoMethodSignature *sig;
2769 MonoMethodMessage *msg;
2770 MonoObject *res, *exc;
2771 MonoArray *out_args;
2774 g_assert (delegate);
2776 if (!delegate->method_info) {
2777 g_assert (delegate->method);
2778 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2781 if (!delegate->method_info || !delegate->method_info->method)
2782 g_assert_not_reached ();
2784 klass = delegate->object.vtable->klass;
2786 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2787 g_assert (method != NULL);
2789 sig = mono_signature_no_pinvoke (method);
2791 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2793 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2795 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2799 if (ares->async_delegate != (MonoObject*)delegate) {
2800 mono_raise_exception (mono_get_exception_invalid_operation (
2801 "The IAsyncResult object provided does not match this delegate."));
2805 #ifndef DISABLE_REMOTING
2806 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2807 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2808 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2809 mono_message_init (domain, msg, delegate->method_info, NULL);
2810 msg->call_type = CallType_EndInvoke;
2811 MONO_OBJECT_SETREF (msg, async_result, ares);
2812 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2816 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2820 if (((MonoException*)exc)->stack_trace) {
2821 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2823 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2825 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2828 mono_raise_exception ((MonoException*)exc);
2831 mono_method_return_message_restore (method, params, out_args);
2838 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2840 MonoType *t = mono_type_get_underlying_type (return_type);
2842 if (return_type->byref)
2843 return_type = &mono_defaults.int_class->byval_arg;
2846 case MONO_TYPE_VOID:
2847 g_assert_not_reached ();
2850 case MONO_TYPE_STRING:
2851 case MONO_TYPE_CLASS:
2852 case MONO_TYPE_OBJECT:
2853 case MONO_TYPE_ARRAY:
2854 case MONO_TYPE_SZARRAY:
2858 case MONO_TYPE_BOOLEAN:
2861 case MONO_TYPE_CHAR:
2871 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2872 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2874 case MONO_TYPE_GENERICINST:
2875 if (!mono_type_generic_inst_is_valuetype (t))
2878 case MONO_TYPE_VALUETYPE: {
2879 MonoClass *klass = mono_class_from_mono_type (return_type);
2880 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2881 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2885 case MONO_TYPE_MVAR: {
2886 MonoClass *klass = mono_class_from_mono_type (return_type);
2887 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2891 g_warning ("type 0x%x not handled", return_type->type);
2892 g_assert_not_reached ();
2895 mono_mb_emit_byte (mb, CEE_RET);
2898 #endif /* DISABLE_JIT */
2901 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2903 MonoMethodSignature *sig;
2904 MonoMethodBuilder *mb;
2909 MonoGenericContext *ctx = NULL;
2910 MonoMethod *orig_method = NULL;
2912 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2913 !strcmp (method->name, "EndInvoke"));
2916 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2918 if (method->is_inflated) {
2919 orig_method = method;
2920 ctx = &((MonoMethodInflated*)method)->context;
2921 method = ((MonoMethodInflated*)method)->declaring;
2924 sig = mono_signature_no_pinvoke (method);
2930 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2931 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2935 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2936 (GHashFunc)mono_signature_hash,
2937 (GCompareFunc)mono_metadata_signature_equal);
2938 if ((res = mono_marshal_find_in_cache (cache, sig)))
2942 g_assert (sig->hasthis);
2944 name = mono_signature_to_name (sig, "end_invoke");
2946 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2948 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2952 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2954 mono_mb_emit_ldarg (mb, 0);
2955 mono_mb_emit_ldloc (mb, params_var);
2956 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2958 if (sig->ret->type == MONO_TYPE_VOID) {
2959 mono_mb_emit_byte (mb, CEE_POP);
2960 mono_mb_emit_byte (mb, CEE_RET);
2962 mono_mb_emit_restore_result (mb, sig->ret);
2967 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2968 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2970 res = mono_mb_create_and_cache (cache, sig,
2971 mb, sig, sig->param_count + 16);
2980 MonoMethodSignature *sig;
2982 } SignaturePointerPair;
2985 signature_pointer_pair_hash (gconstpointer data)
2987 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2989 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2993 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2995 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2996 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3000 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3002 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3004 return pair->pointer == user_data;
3008 free_signature_pointer_pair (SignaturePointerPair *pair)
3013 static MonoMethodSignature*
3014 sig_to_rgctx_sig (MonoMethodSignature *sig)
3016 // FIXME: memory allocation
3017 MonoMethodSignature *res;
3020 res = g_malloc (MONO_SIZEOF_METHOD_SIGNATURE + (sig->param_count + 1) * sizeof (MonoType*));
3021 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3022 res->param_count = sig->param_count + 1;
3023 for (i = 0; i < sig->param_count; ++i)
3024 res->params [i] = sig->params [i];
3025 res->params [sig->param_count] = &mono_defaults.int_class->byval_arg;
3030 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3032 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3034 MonoMethodBuilder *mb;
3037 gpointer cache_key = NULL;
3038 SignaturePointerPair key;
3039 SignaturePointerPair *new_key;
3040 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3041 int pos0, pos1, pos2, pos3, pos4;
3043 MonoClass *target_class = NULL;
3044 gboolean closed_over_null = FALSE;
3045 MonoGenericContext *ctx = NULL;
3046 MonoGenericContainer *container = NULL;
3047 MonoMethod *orig_method = NULL;
3049 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3053 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3054 !strcmp (method->name, "Invoke"));
3056 invoke_sig = sig = mono_signature_no_pinvoke (method);
3059 * If the delegate target is null, and the target method is not static, a virtual
3060 * call is made to that method with the first delegate argument as this. This is
3061 * a non-documented .NET feature.
3064 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3065 if (target_method->is_inflated) {
3066 MonoType *target_type;
3068 g_assert (method->signature->hasthis);
3069 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3070 mono_method_get_context (method));
3071 target_class = mono_class_from_mono_type (target_type);
3073 target_class = target_method->klass;
3076 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3079 if (static_method_with_first_arg_bound) {
3080 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3081 g_assert (!callvirt);
3082 invoke_sig = mono_method_signature (target_method);
3086 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3088 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3089 orig_method = method;
3090 ctx = &((MonoMethodInflated*)method)->context;
3091 method = ((MonoMethodInflated*)method)->declaring;
3093 container = mono_method_get_generic_container (method);
3095 container = method->klass->generic_container;
3096 g_assert (container);
3098 invoke_sig = sig = mono_signature_no_pinvoke (method);
3105 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3106 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3109 cache_key = method->klass;
3110 } else if (static_method_with_first_arg_bound) {
3111 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3112 (GHashFunc)mono_signature_hash,
3113 (GCompareFunc)mono_metadata_signature_equal);
3115 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3117 res = mono_marshal_find_in_cache (cache, invoke_sig);
3120 cache_key = invoke_sig;
3121 } else if (callvirt) {
3122 GHashTable **cache_ptr;
3124 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3126 /* We need to cache the signature+method pair */
3127 mono_marshal_lock ();
3129 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3131 key.sig = invoke_sig;
3132 key.pointer = target_method;
3133 res = g_hash_table_lookup (cache, &key);
3134 mono_marshal_unlock ();
3138 // Inflated methods should not be in this cache because it's not stored on the imageset.
3139 g_assert (!method->is_inflated);
3140 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3141 (GHashFunc)mono_signature_hash,
3142 (GCompareFunc)mono_metadata_signature_equal);
3143 res = mono_marshal_find_in_cache (cache, sig);
3149 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3150 static_sig->hasthis = 0;
3151 if (!static_method_with_first_arg_bound)
3152 invoke_sig = static_sig;
3154 if (static_method_with_first_arg_bound)
3155 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3156 else if (closed_over_null)
3157 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3159 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3161 name = mono_signature_to_name (invoke_sig, "invoke");
3163 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3165 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3169 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3171 /* allocate local 0 (object) */
3172 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3173 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3174 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3175 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3176 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3179 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3181 g_assert (sig->hasthis);
3184 * {type: sig->ret} res;
3185 * if (delegates == null) {
3186 * return this.<target> ( args .. );
3188 * int i = 0, len = this.delegates.Length;
3190 * res = this.delegates [i].Invoke ( args .. );
3191 * } while (++i < len);
3196 /* this wrapper can be used in unmanaged-managed transitions */
3197 emit_thread_interrupt_checkpoint (mb);
3199 /* delegates = this.delegates */
3200 mono_mb_emit_ldarg (mb, 0);
3201 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3202 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3203 mono_mb_emit_stloc (mb, local_delegates);
3206 /* if (delegates == null) */
3207 mono_mb_emit_ldloc (mb, local_delegates);
3208 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3210 /* return target.<target_method|method_ptr> ( args .. ); */
3212 /* target = d.target; */
3213 mono_mb_emit_ldarg (mb, 0);
3214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3215 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3216 mono_mb_emit_stloc (mb, local_target);
3218 /*static methods with bound first arg can have null target and still be bound*/
3219 if (!static_method_with_first_arg_bound) {
3220 /* if target != null */
3221 mono_mb_emit_ldloc (mb, local_target);
3222 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3224 /* then call this->method_ptr nonstatic */
3227 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3229 MonoMethodSignature *rgctx_sig;
3231 // FIXME: Support this for the other cases as well
3232 mono_mb_emit_ldarg (mb, 0);
3233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3234 mono_mb_emit_byte (mb, CEE_LDIND_I);
3235 pos3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3238 rgctx_sig = sig_to_rgctx_sig (sig);
3240 mono_mb_emit_ldloc (mb, local_target);
3241 for (i = 0; i < sig->param_count; ++i)
3242 mono_mb_emit_ldarg (mb, i + 1);
3243 mono_mb_emit_ldarg (mb, 0);
3244 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3245 mono_mb_emit_byte (mb, CEE_LDIND_I);
3246 mono_mb_emit_ldarg (mb, 0);
3247 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3248 mono_mb_emit_byte (mb, CEE_LDIND_I);
3249 mono_mb_emit_op (mb, CEE_CALLI, rgctx_sig);
3250 pos4 = mono_mb_emit_branch (mb, CEE_BR);
3252 /* Non-rgctx case */
3253 mono_mb_patch_branch (mb, pos3);
3254 mono_mb_emit_ldloc (mb, local_target);
3255 for (i = 0; i < sig->param_count; ++i)
3256 mono_mb_emit_ldarg (mb, i + 1);
3257 mono_mb_emit_ldarg (mb, 0);
3258 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3259 mono_mb_emit_byte (mb, CEE_LDIND_I );
3260 mono_mb_emit_op (mb, CEE_CALLI, sig);
3262 mono_mb_patch_branch (mb, pos4);
3264 mono_mb_emit_byte (mb, CEE_RET);
3267 /* else [target == null] call this->method_ptr static */
3268 mono_mb_patch_branch (mb, pos0);
3272 if (!closed_over_null) {
3273 if (target_class->valuetype) {
3274 mono_mb_emit_ldarg (mb, 1);
3275 for (i = 1; i < sig->param_count; ++i)
3276 mono_mb_emit_ldarg (mb, i + 1);
3277 mono_mb_emit_op (mb, CEE_CALL, target_method);
3279 mono_mb_emit_ldarg (mb, 1);
3280 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3281 for (i = 1; i < sig->param_count; ++i)
3282 mono_mb_emit_ldarg (mb, i + 1);
3283 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3286 mono_mb_emit_byte (mb, CEE_LDNULL);
3287 for (i = 0; i < sig->param_count; ++i)
3288 mono_mb_emit_ldarg (mb, i + 1);
3289 mono_mb_emit_op (mb, CEE_CALL, target_method);
3292 MonoMethodSignature *rgctx_sig;
3294 mono_mb_emit_ldarg (mb, 0);
3295 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3296 mono_mb_emit_byte (mb, CEE_LDIND_I);
3297 pos3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3300 rgctx_sig = sig_to_rgctx_sig (invoke_sig);
3302 if (static_method_with_first_arg_bound) {
3303 mono_mb_emit_ldloc (mb, local_target);
3304 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3305 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3307 for (i = 0; i < sig->param_count; ++i)
3308 mono_mb_emit_ldarg (mb, i + 1);
3309 mono_mb_emit_ldarg (mb, 0);
3310 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3311 mono_mb_emit_byte (mb, CEE_LDIND_I);
3312 mono_mb_emit_ldarg (mb, 0);
3313 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3314 mono_mb_emit_byte (mb, CEE_LDIND_I);
3315 mono_mb_emit_op (mb, CEE_CALLI, rgctx_sig);
3316 pos4 = mono_mb_emit_branch (mb, CEE_BR);
3318 /* Non-rgctx case */
3319 mono_mb_patch_branch (mb, pos3);
3320 if (static_method_with_first_arg_bound) {
3321 mono_mb_emit_ldloc (mb, local_target);
3322 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3323 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3325 for (i = 0; i < sig->param_count; ++i)
3326 mono_mb_emit_ldarg (mb, i + 1);
3327 mono_mb_emit_ldarg (mb, 0);
3328 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3329 mono_mb_emit_byte (mb, CEE_LDIND_I);
3330 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3332 mono_mb_patch_branch (mb, pos4);
3335 mono_mb_emit_byte (mb, CEE_RET);
3337 /* else [delegates != null] */
3338 mono_mb_patch_branch (mb, pos2);
3340 /* len = delegates.Length; */
3341 mono_mb_emit_ldloc (mb, local_delegates);
3342 mono_mb_emit_byte (mb, CEE_LDLEN);
3343 mono_mb_emit_byte (mb, CEE_CONV_I4);
3344 mono_mb_emit_stloc (mb, local_len);
3347 mono_mb_emit_icon (mb, 0);
3348 mono_mb_emit_stloc (mb, local_i);
3350 pos1 = mono_mb_get_label (mb);
3352 /* d = delegates [i]; */
3353 mono_mb_emit_ldloc (mb, local_delegates);
3354 mono_mb_emit_ldloc (mb, local_i);
3355 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3356 mono_mb_emit_stloc (mb, local_d);
3358 /* res = d.Invoke ( args .. ); */
3359 mono_mb_emit_ldloc (mb, local_d);
3360 for (i = 0; i < sig->param_count; i++)
3361 mono_mb_emit_ldarg (mb, i + 1);
3363 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3366 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3367 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3370 mono_mb_emit_stloc (mb, local_res);
3373 mono_mb_emit_add_to_local (mb, local_i, 1);
3376 mono_mb_emit_ldloc (mb, local_i);
3377 mono_mb_emit_ldloc (mb, local_len);
3378 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3382 mono_mb_emit_ldloc (mb, local_res);
3383 mono_mb_emit_byte (mb, CEE_RET);
3385 mb->skip_visibility = 1;
3386 #endif /* DISABLE_JIT */
3391 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3392 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3393 } else if (callvirt) {
3394 new_key = g_new0 (SignaturePointerPair, 1);
3397 info = mono_wrapper_info_create (mb, subtype);
3399 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3403 info = mono_wrapper_info_create (mb, subtype);
3405 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3409 /* mono_method_print_code (res); */
3415 * the returned method invokes all methods in a multicast delegate.
3418 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3420 gboolean callvirt = FALSE;
3421 gboolean static_method_with_first_arg_bound = FALSE;
3422 MonoMethod *target_method = NULL;
3423 MonoMethodSignature *sig;
3425 sig = mono_signature_no_pinvoke (method);
3427 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3429 target_method = del->method;
3432 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3433 static_method_with_first_arg_bound = TRUE;
3434 target_method = del->method;
3437 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3441 MonoMethodSignature *ctor_sig;
3442 MonoMethodSignature *sig;
3445 /* protected by the marshal lock, contains CtorSigPair pointers */
3446 static GSList *strsig_list = NULL;
3448 static MonoMethodSignature *
3449 lookup_string_ctor_signature (MonoMethodSignature *sig)
3451 MonoMethodSignature *callsig;
3455 mono_marshal_lock ();
3457 for (item = strsig_list; item; item = item->next) {
3459 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3460 * because it is lock-free.
3462 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3467 mono_marshal_unlock ();
3471 static MonoMethodSignature *
3472 add_string_ctor_signature (MonoMethod *method)
3474 MonoMethodSignature *callsig;
3477 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3478 callsig->ret = &mono_defaults.string_class->byval_arg;
3479 cs = g_new (CtorSigPair, 1);
3481 cs->ctor_sig = mono_method_signature (method);
3483 mono_marshal_lock ();
3484 strsig_list = g_slist_prepend (strsig_list, cs);
3485 mono_marshal_unlock ();
3490 * mono_marshal_get_string_ctor_signature:
3492 * Return the modified signature used by string ctors (they return the newly created
3495 MonoMethodSignature*
3496 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3498 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3500 sig = add_string_ctor_signature (method);
3506 get_runtime_invoke_type (MonoType *t, gboolean ret)
3509 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3511 /* Can't share this with 'I' as that needs another indirection */
3512 return &mono_defaults.int_class->this_arg;
3515 if (MONO_TYPE_IS_REFERENCE (t))
3516 return &mono_defaults.object_class->byval_arg;
3519 /* The result needs to be boxed */
3524 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3527 return &mono_defaults.sbyte_class->byval_arg;
3529 return &mono_defaults.int16_class->byval_arg;
3531 return &mono_defaults.int32_class->byval_arg;
3534 return &mono_defaults.int64_class->byval_arg;
3535 case MONO_TYPE_BOOLEAN:
3536 return &mono_defaults.byte_class->byval_arg;
3537 case MONO_TYPE_CHAR:
3538 return &mono_defaults.uint16_class->byval_arg;
3541 return &mono_defaults.int_class->byval_arg;
3542 case MONO_TYPE_VALUETYPE:
3543 if (t->data.klass->enumtype) {
3544 t = mono_class_enum_basetype (t->data.klass);
3554 * mono_marshal_get_runtime_invoke_sig:
3556 * Return a common signature used for sharing runtime invoke wrappers.
3558 static MonoMethodSignature*
3559 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3561 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3564 res->generic_param_count = 0;
3565 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3566 for (i = 0; i < res->param_count; ++i)
3567 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3573 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3575 /* Can't share wrappers which return a vtype since it needs to be boxed */
3576 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))
3579 return mono_metadata_signature_equal (sig1, sig2);
3587 * Emit the call to the wrapper method from a runtime invoke wrapper.
3590 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3591 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3593 gboolean virtual, gboolean need_direct_wrapper)
3595 static MonoString *string_dummy = NULL;
3597 int *tmp_nullable_locals;
3598 gboolean void_ret = FALSE;
3600 /* to make it work with our special string constructors */
3601 if (!string_dummy) {
3602 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3603 string_dummy = mono_string_new_wrapper ("dummy");
3607 g_assert (sig->hasthis);
3608 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3612 if (method->string_ctor) {
3613 if (mono_gc_is_moving ()) {
3614 mono_mb_emit_ptr (mb, &string_dummy);
3615 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3617 mono_mb_emit_ptr (mb, string_dummy);
3620 mono_mb_emit_ldarg (mb, 0);
3624 tmp_nullable_locals = g_new0 (int, sig->param_count);
3626 for (i = 0; i < sig->param_count; i++) {
3627 MonoType *t = sig->params [i];
3630 mono_mb_emit_ldarg (mb, 1);
3632 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3633 mono_mb_emit_byte (mb, CEE_ADD);
3637 mono_mb_emit_byte (mb, CEE_LDIND_I);
3638 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3639 * So to make this work we unbox it to a local variablee and push a reference to that.
3641 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3642 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3644 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3645 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3646 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3651 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3652 type = sig->params [i]->type;
3656 case MONO_TYPE_BOOLEAN:
3660 case MONO_TYPE_CHAR:
3669 mono_mb_emit_byte (mb, CEE_LDIND_I);
3670 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3672 case MONO_TYPE_STRING:
3673 case MONO_TYPE_CLASS:
3674 case MONO_TYPE_ARRAY:
3676 case MONO_TYPE_SZARRAY:
3677 case MONO_TYPE_OBJECT:
3678 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3680 case MONO_TYPE_GENERICINST:
3681 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3682 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3687 case MONO_TYPE_VALUETYPE:
3688 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3689 type = mono_class_enum_basetype (t->data.klass)->type;
3692 mono_mb_emit_byte (mb, CEE_LDIND_I);
3693 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3694 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3695 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3696 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3698 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3702 g_assert_not_reached ();
3707 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3708 } else if (need_direct_wrapper) {
3709 mono_mb_emit_op (mb, CEE_CALL, method);
3711 mono_mb_emit_ldarg (mb, 3);
3712 mono_mb_emit_calli (mb, callsig);
3715 if (sig->ret->byref) {
3717 g_assert_not_reached ();
3720 switch (sig->ret->type) {
3721 case MONO_TYPE_VOID:
3722 if (!method->string_ctor)
3725 case MONO_TYPE_BOOLEAN:
3726 case MONO_TYPE_CHAR:
3739 case MONO_TYPE_VALUETYPE:
3740 case MONO_TYPE_TYPEDBYREF:
3741 case MONO_TYPE_GENERICINST:
3742 /* box value types */
3743 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3745 case MONO_TYPE_STRING:
3746 case MONO_TYPE_CLASS:
3747 case MONO_TYPE_ARRAY:
3748 case MONO_TYPE_SZARRAY:
3749 case MONO_TYPE_OBJECT:
3753 /* The result is an IntPtr */
3754 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3757 g_assert_not_reached ();
3761 mono_mb_emit_stloc (mb, loc_res);
3763 /* Convert back nullable-byref arguments */
3764 for (i = 0; i < sig->param_count; i++) {
3765 MonoType *t = sig->params [i];
3768 * Box the result and put it back into the array, the caller will have
3769 * to obtain it from there.
3771 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3772 mono_mb_emit_ldarg (mb, 1);
3773 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3774 mono_mb_emit_byte (mb, CEE_ADD);
3776 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3777 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3779 mono_mb_emit_byte (mb, CEE_STIND_REF);
3783 g_free (tmp_nullable_locals);
3787 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3788 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3789 gboolean virtual, gboolean need_direct_wrapper)
3792 MonoExceptionClause *clause;
3793 int loc_res, loc_exc;
3795 /* The wrapper looks like this:
3801 * } catch (Exception e) {
3809 /* allocate local 0 (object) tmp */
3810 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3811 /* allocate local 1 (object) exc */
3812 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3814 /* *exc is assumed to be initialized to NULL by the caller */
3816 mono_mb_emit_byte (mb, CEE_LDARG_2);
3817 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3822 labels [1] = mono_mb_get_label (mb);
3823 emit_thread_force_interrupt_checkpoint (mb);
3824 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3826 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3828 /* Add a try clause around the call */
3829 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3830 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3831 clause->data.catch_class = mono_defaults.exception_class;
3832 clause->try_offset = labels [1];
3833 clause->try_len = mono_mb_get_label (mb) - labels [1];
3835 clause->handler_offset = mono_mb_get_label (mb);
3838 mono_mb_emit_stloc (mb, loc_exc);
3839 mono_mb_emit_byte (mb, CEE_LDARG_2);
3840 mono_mb_emit_ldloc (mb, loc_exc);
3841 mono_mb_emit_byte (mb, CEE_STIND_REF);
3843 mono_mb_emit_branch (mb, CEE_LEAVE);
3845 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3847 mono_mb_set_clauses (mb, 1, clause);
3849 mono_mb_patch_branch (mb, labels [2]);
3850 mono_mb_emit_ldloc (mb, loc_res);
3851 mono_mb_emit_byte (mb, CEE_RET);
3856 mono_mb_patch_branch (mb, labels [0]);
3857 emit_thread_force_interrupt_checkpoint (mb);
3858 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3860 mono_mb_emit_ldloc (mb, 0);
3861 mono_mb_emit_byte (mb, CEE_RET);
3866 * generates IL code for the runtime invoke function
3867 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3869 * we also catch exceptions if exc != null
3870 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3871 * it means that the compiled code for METHOD does not have to be looked up
3872 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3873 * its METHOD argument.
3874 * If PASS_RGCTX is TRUE, the signature of the called method is changed to include a 'gpointer rgctx' as the
3875 * first argument (after 'this').
3878 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual, gboolean pass_rgctx)
3880 MonoMethodSignature *sig, *csig, *callsig;
3881 MonoMethodBuilder *mb;
3882 GHashTable *cache = NULL;
3883 MonoClass *target_klass;
3884 MonoMethod *res = NULL;
3885 static MonoMethodSignature *cctor_signature = NULL;
3886 static MonoMethodSignature *finalize_signature = NULL;
3888 const char *param_names [16];
3889 gboolean need_direct_wrapper = FALSE;
3894 if (!cctor_signature) {
3895 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3896 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3898 if (!finalize_signature) {
3899 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3900 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3901 finalize_signature->hasthis = 1;
3905 need_direct_wrapper = TRUE;
3908 * Use a separate cache indexed by methods to speed things up and to avoid the
3909 * boundless mempool growth caused by the signature_dup stuff below.
3912 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3914 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3916 res = mono_marshal_find_in_cache (cache, method);
3920 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3921 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3923 * Array Get/Set/Address methods. The JIT implements them using inline code
3924 * so we need to create an invoke wrapper which calls the method directly.
3926 need_direct_wrapper = TRUE;
3929 if (method->string_ctor) {
3930 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3932 callsig = add_string_ctor_signature (method);
3933 /* Can't share this as we push a string as this */
3934 need_direct_wrapper = TRUE;
3936 if (method_is_dynamic (method))
3937 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3939 callsig = mono_method_signature (method);
3942 sig = mono_method_signature (method);
3945 sig = sig_to_rgctx_sig (sig);
3946 callsig = sig_to_rgctx_sig (callsig);
3949 target_klass = get_wrapper_target_class (method->klass->image);
3951 /* Try to share wrappers for non-corlib methods with simple signatures */
3952 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3953 callsig = cctor_signature;
3954 target_klass = mono_defaults.object_class;
3955 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3956 callsig = finalize_signature;
3957 target_klass = mono_defaults.object_class;
3960 if (need_direct_wrapper) {
3961 /* Already searched at the start */
3963 MonoMethodSignature *tmp_sig;
3965 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3966 GHashTable **cache_table = NULL;
3968 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3969 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3971 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3973 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3974 (GCompareFunc)runtime_invoke_signature_equal);
3976 /* from mono_marshal_find_in_cache */
3977 mono_marshal_lock ();
3978 res = g_hash_table_lookup (cache, callsig);
3979 mono_marshal_unlock ();
3986 /* Make a copy of the signature from the image mempool */
3988 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3992 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3994 csig->ret = &mono_defaults.object_class->byval_arg;
3995 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3996 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3998 csig->params [0] = &mono_defaults.object_class->byval_arg;
3999 csig->params [1] = &mono_defaults.int_class->byval_arg;
4000 csig->params [2] = &mono_defaults.int_class->byval_arg;
4001 csig->params [3] = &mono_defaults.int_class->byval_arg;
4004 /* This is called from runtime code so it has to be cdecl */
4005 csig->call_convention = MONO_CALL_C;
4008 name = mono_signature_to_name (callsig, pass_rgctx ? (virtual ? "runtime_invoke_virtual_rgctx" : "runtime_invoke_rgctx") : (virtual ? "runtime_invoke_virtual" : "runtime_invoke"));
4009 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4013 param_names [0] = "this";
4014 param_names [1] = "params";
4015 param_names [2] = "exc";
4016 param_names [3] = "method";
4017 mono_mb_set_param_names (mb, param_names);
4019 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4022 if (need_direct_wrapper) {
4024 mb->skip_visibility = 1;
4026 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4027 info->d.runtime_invoke.method = method;
4028 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4030 /* taken from mono_mb_create_and_cache */
4031 mono_marshal_lock ();
4032 res = g_hash_table_lookup (cache, callsig);
4033 mono_marshal_unlock ();
4035 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4036 info->d.runtime_invoke.sig = callsig;
4037 info->d.runtime_invoke.pass_rgctx = pass_rgctx;
4039 /* Somebody may have created it before us */
4042 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4044 mono_marshal_lock ();
4045 res = g_hash_table_lookup (cache, callsig);
4047 GHashTable *direct_cache;
4049 g_hash_table_insert (cache, callsig, res);
4050 /* Can't insert it into wrapper_hash since the key is a signature */
4051 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4053 g_hash_table_insert (direct_cache, method, res);
4055 mono_free_method (newm);
4057 mono_marshal_unlock ();
4060 /* end mono_mb_create_and_cache */
4069 * mono_marshal_get_runtime_invoke_dynamic:
4071 * Return a method which can be used to invoke managed methods from native code
4073 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4074 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4075 * ARGS should point to an architecture specific structure containing
4076 * the arguments and space for the return value.
4077 * The other arguments are the same as for runtime_invoke (), except that
4078 * ARGS should contain the this argument too.
4079 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4080 * is only one copy of it, which is useful in full-aot.
4081 * The wrapper info for the wrapper is a WrapperInfo structure.
4084 mono_marshal_get_runtime_invoke_dynamic (void)
4086 static MonoMethod *method;
4087 MonoMethodSignature *csig;
4088 MonoExceptionClause *clause;
4089 MonoMethodBuilder *mb;
4097 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4099 csig->ret = &mono_defaults.void_class->byval_arg;
4100 csig->params [0] = &mono_defaults.int_class->byval_arg;
4101 csig->params [1] = &mono_defaults.int_class->byval_arg;
4102 csig->params [2] = &mono_defaults.int_class->byval_arg;
4103 csig->params [3] = &mono_defaults.int_class->byval_arg;
4105 name = g_strdup ("runtime_invoke_dynamic");
4106 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4110 /* allocate local 0 (object) tmp */
4111 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4112 /* allocate local 1 (object) exc */
4113 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4115 /* cond set *exc to null */
4116 mono_mb_emit_byte (mb, CEE_LDARG_1);
4117 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4118 mono_mb_emit_byte (mb, 3);
4119 mono_mb_emit_byte (mb, CEE_LDARG_1);
4120 mono_mb_emit_byte (mb, CEE_LDNULL);
4121 mono_mb_emit_byte (mb, CEE_STIND_REF);
4123 emit_thread_force_interrupt_checkpoint (mb);
4125 mono_mb_emit_byte (mb, CEE_LDARG_0);
4126 mono_mb_emit_byte (mb, CEE_LDARG_2);
4127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4128 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4130 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4132 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4133 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4134 clause->try_len = mono_mb_get_label (mb);
4137 clause->data.filter_offset = mono_mb_get_label (mb);
4139 mono_mb_emit_byte (mb, CEE_POP);
4140 mono_mb_emit_byte (mb, CEE_LDARG_1);
4141 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4142 mono_mb_emit_byte (mb, CEE_PREFIX1);
4143 mono_mb_emit_byte (mb, CEE_CGT_UN);
4144 mono_mb_emit_byte (mb, CEE_PREFIX1);
4145 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4147 clause->handler_offset = mono_mb_get_label (mb);
4150 /* store exception */
4151 mono_mb_emit_stloc (mb, 1);
4153 mono_mb_emit_byte (mb, CEE_LDARG_1);
4154 mono_mb_emit_ldloc (mb, 1);
4155 mono_mb_emit_byte (mb, CEE_STIND_REF);
4157 mono_mb_emit_byte (mb, CEE_LDNULL);
4158 mono_mb_emit_stloc (mb, 0);
4160 /* Check for the abort exception */
4161 mono_mb_emit_ldloc (mb, 1);
4162 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4163 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4165 /* Delay the abort exception */
4166 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4168 mono_mb_patch_short_branch (mb, posna);
4169 mono_mb_emit_branch (mb, CEE_LEAVE);
4171 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4173 mono_mb_set_clauses (mb, 1, clause);
4176 mono_mb_patch_branch (mb, pos);
4177 //mono_mb_emit_ldloc (mb, 0);
4178 mono_mb_emit_byte (mb, CEE_RET);
4179 #endif /* DISABLE_JIT */
4181 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4183 mono_marshal_lock ();
4184 /* double-checked locking */
4186 method = mono_mb_create (mb, csig, 16, info);
4188 mono_marshal_unlock ();
4197 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4199 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4200 klass->name_space, klass->name);
4202 mono_mb_emit_exception_marshal_directive (mb, msg);
4207 * generates IL code for the icall wrapper (the generated method
4208 * calls the unmanaged code in func)
4209 * The wrapper info for the wrapper is a WrapperInfo structure.
4212 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4214 MonoMethodSignature *csig, *csig2;
4215 MonoMethodBuilder *mb;
4220 g_assert (sig->pinvoke);
4222 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4224 mb->method->save_lmf = 1;
4226 /* Add an explicit this argument */
4228 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4230 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4234 mono_mb_emit_byte (mb, CEE_LDARG_0);
4236 for (i = 0; i < sig->param_count; i++)
4237 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4239 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4240 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4241 mono_mb_emit_calli (mb, csig2);
4242 if (check_exceptions)
4243 emit_thread_interrupt_checkpoint (mb);
4244 mono_mb_emit_byte (mb, CEE_RET);
4247 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4249 if (csig->call_convention == MONO_CALL_VARARG)
4250 csig->call_convention = 0;
4252 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4253 info->d.icall.func = (gpointer)func;
4254 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4261 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4262 MonoMarshalSpec *spec,
4263 int conv_arg, MonoType **conv_arg_type,
4264 MarshalAction action)
4267 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4268 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4273 static MonoClass *ICustomMarshaler = NULL;
4274 static MonoMethod *cleanup_native, *cleanup_managed;
4275 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4276 MonoMethod *get_instance = NULL;
4277 MonoMethodBuilder *mb = m->mb;
4278 char *exception_msg = NULL;
4282 if (!ICustomMarshaler) {
4283 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4285 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4286 goto handle_exception;
4289 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4290 g_assert (cleanup_native);
4291 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4292 g_assert (cleanup_managed);
4293 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4294 g_assert (marshal_managed_to_native);
4295 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4296 g_assert (marshal_native_to_managed);
4298 mono_memory_barrier ();
4299 ICustomMarshaler = klass;
4302 if (spec->data.custom_data.image)
4303 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4305 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4306 g_assert (mtype != NULL);
4307 mklass = mono_class_from_mono_type (mtype);
4308 g_assert (mklass != NULL);
4310 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4311 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4313 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4315 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4316 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4317 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4318 (get_sig->params [0]->type != MONO_TYPE_STRING))
4319 get_instance = NULL;
4323 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);
4326 /* Throw exception and emit compensation code if neccesary */
4327 if (exception_msg) {
4329 case MARSHAL_ACTION_CONV_IN:
4330 case MARSHAL_ACTION_CONV_RESULT:
4331 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4332 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4333 mono_mb_emit_byte (mb, CEE_POP);
4335 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4336 g_free (exception_msg);
4339 case MARSHAL_ACTION_PUSH:
4340 mono_mb_emit_byte (mb, CEE_LDNULL);
4348 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4349 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4352 case MARSHAL_ACTION_CONV_IN:
4354 case MONO_TYPE_CLASS:
4355 case MONO_TYPE_OBJECT:
4356 case MONO_TYPE_STRING:
4357 case MONO_TYPE_ARRAY:
4358 case MONO_TYPE_SZARRAY:
4359 case MONO_TYPE_VALUETYPE:
4363 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4364 g_assert_not_reached ();
4368 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4370 mono_mb_emit_byte (mb, CEE_LDNULL);
4371 mono_mb_emit_stloc (mb, conv_arg);
4373 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4376 /* Minic MS.NET behavior */
4377 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4380 /* Check for null */
4381 mono_mb_emit_ldarg (mb, argnum);
4383 mono_mb_emit_byte (mb, CEE_LDIND_I);
4384 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4386 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4388 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4390 mono_mb_emit_ldarg (mb, argnum);
4392 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4394 if (t->type == MONO_TYPE_VALUETYPE) {
4396 * Since we can't determine the type of the argument, we
4397 * will assume the unmanaged function takes a pointer.
4399 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4401 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4404 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4405 mono_mb_emit_stloc (mb, conv_arg);
4407 mono_mb_patch_branch (mb, pos2);
4410 case MARSHAL_ACTION_CONV_OUT:
4411 /* Check for null */
4412 mono_mb_emit_ldloc (mb, conv_arg);
4413 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4416 mono_mb_emit_ldarg (mb, argnum);
4418 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4420 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4422 mono_mb_emit_ldloc (mb, conv_arg);
4423 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4424 mono_mb_emit_byte (mb, CEE_STIND_REF);
4425 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4426 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4428 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4430 mono_mb_emit_ldloc (mb, conv_arg);
4431 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4433 /* We have nowhere to store the result */
4434 mono_mb_emit_byte (mb, CEE_POP);
4437 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4439 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4441 mono_mb_emit_ldloc (mb, conv_arg);
4443 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4445 mono_mb_patch_branch (mb, pos2);
4448 case MARSHAL_ACTION_PUSH:
4450 mono_mb_emit_ldloc_addr (mb, conv_arg);
4452 mono_mb_emit_ldloc (mb, conv_arg);
4455 case MARSHAL_ACTION_CONV_RESULT:
4456 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4458 mono_mb_emit_stloc (mb, 3);
4460 mono_mb_emit_ldloc (mb, 3);
4461 mono_mb_emit_stloc (mb, loc1);
4463 /* Check for null */
4464 mono_mb_emit_ldloc (mb, 3);
4465 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4467 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4469 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4470 mono_mb_emit_byte (mb, CEE_DUP);
4472 mono_mb_emit_ldloc (mb, 3);
4473 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4474 mono_mb_emit_stloc (mb, 3);
4476 mono_mb_emit_ldloc (mb, loc1);
4477 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4479 mono_mb_patch_branch (mb, pos2);
4482 case MARSHAL_ACTION_MANAGED_CONV_IN:
4483 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4485 mono_mb_emit_byte (mb, CEE_LDNULL);
4486 mono_mb_emit_stloc (mb, conv_arg);
4488 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4491 /* Check for null */
4492 mono_mb_emit_ldarg (mb, argnum);
4494 mono_mb_emit_byte (mb, CEE_LDIND_I);
4495 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4497 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4498 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4500 mono_mb_emit_ldarg (mb, argnum);
4502 mono_mb_emit_byte (mb, CEE_LDIND_I);
4504 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4505 mono_mb_emit_stloc (mb, conv_arg);
4507 mono_mb_patch_branch (mb, pos2);
4510 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4511 g_assert (!t->byref);
4513 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4515 mono_mb_emit_stloc (mb, 3);
4517 mono_mb_emit_ldloc (mb, 3);
4518 mono_mb_emit_stloc (mb, loc1);
4520 /* Check for null */
4521 mono_mb_emit_ldloc (mb, 3);
4522 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4524 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4525 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4526 mono_mb_emit_byte (mb, CEE_DUP);
4528 mono_mb_emit_ldloc (mb, 3);
4529 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4530 mono_mb_emit_stloc (mb, 3);
4532 mono_mb_emit_ldloc (mb, loc1);
4533 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4535 mono_mb_patch_branch (mb, pos2);
4538 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4540 /* Check for null */
4541 mono_mb_emit_ldloc (mb, conv_arg);
4542 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4545 mono_mb_emit_ldarg (mb, argnum);
4547 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4549 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4551 mono_mb_emit_ldloc (mb, conv_arg);
4552 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4553 mono_mb_emit_byte (mb, CEE_STIND_I);
4556 /* Call CleanUpManagedData */
4557 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4559 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4561 mono_mb_emit_ldloc (mb, conv_arg);
4562 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4564 mono_mb_patch_branch (mb, pos2);
4568 g_assert_not_reached ();
4576 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4577 MonoMarshalSpec *spec,
4578 int conv_arg, MonoType **conv_arg_type,
4579 MarshalAction action)
4582 MonoMethodBuilder *mb = m->mb;
4585 case MARSHAL_ACTION_CONV_IN: {
4586 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4588 g_assert (t->type == MONO_TYPE_OBJECT);
4589 g_assert (!t->byref);
4591 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4592 mono_mb_emit_ldarg (mb, argnum);
4593 mono_mb_emit_icon (mb, encoding);
4594 mono_mb_emit_icon (mb, t->attrs);
4595 mono_mb_emit_icall (mb, mono_marshal_asany);
4596 mono_mb_emit_stloc (mb, conv_arg);
4600 case MARSHAL_ACTION_PUSH:
4601 mono_mb_emit_ldloc (mb, conv_arg);
4604 case MARSHAL_ACTION_CONV_OUT: {
4605 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4607 mono_mb_emit_ldarg (mb, argnum);
4608 mono_mb_emit_ldloc (mb, conv_arg);
4609 mono_mb_emit_icon (mb, encoding);
4610 mono_mb_emit_icon (mb, t->attrs);
4611 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4616 g_assert_not_reached ();
4623 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4624 MonoMarshalSpec *spec,
4625 int conv_arg, MonoType **conv_arg_type,
4626 MarshalAction action)
4629 MonoMethodBuilder *mb = m->mb;
4630 MonoClass *klass, *date_time_class;
4633 klass = mono_class_from_mono_type (t);
4635 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4638 case MARSHAL_ACTION_CONV_IN:
4639 if (klass == date_time_class) {
4640 /* Convert it to an OLE DATE type */
4641 static MonoMethod *to_oadate;
4644 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4645 g_assert (to_oadate);
4647 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4650 mono_mb_emit_ldarg (mb, argnum);
4651 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4654 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4656 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4658 mono_mb_emit_ldarg_addr (mb, argnum);
4659 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4660 mono_mb_emit_stloc (mb, conv_arg);
4664 mono_mb_patch_branch (mb, pos);
4668 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4669 klass->blittable || klass->enumtype)
4672 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4674 /* store the address of the source into local variable 0 */
4676 mono_mb_emit_ldarg (mb, argnum);
4678 mono_mb_emit_ldarg_addr (mb, argnum);
4680 mono_mb_emit_stloc (mb, 0);
4682 /* allocate space for the native struct and
4683 * store the address into local variable 1 (dest) */
4684 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4685 mono_mb_emit_byte (mb, CEE_PREFIX1);
4686 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4687 mono_mb_emit_stloc (mb, conv_arg);
4690 mono_mb_emit_ldloc (mb, 0);
4691 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4694 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4696 mono_mb_emit_ldloc (mb, conv_arg);
4697 mono_mb_emit_stloc (mb, 1);
4699 /* emit valuetype conversion code */
4700 emit_struct_conv (mb, klass, FALSE);
4704 mono_mb_patch_branch (mb, pos);
4707 case MARSHAL_ACTION_PUSH:
4708 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4710 g_assert (!t->byref);
4712 /* Have to change the signature since the vtype is passed byref */
4713 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4715 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4716 klass->blittable || klass->enumtype)
4717 mono_mb_emit_ldarg_addr (mb, argnum);
4719 mono_mb_emit_ldloc (mb, conv_arg);
4723 if (klass == date_time_class) {
4725 mono_mb_emit_ldloc_addr (mb, conv_arg);
4727 mono_mb_emit_ldloc (mb, conv_arg);
4731 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4732 klass->blittable || klass->enumtype) {
4733 mono_mb_emit_ldarg (mb, argnum);
4736 mono_mb_emit_ldloc (mb, conv_arg);
4738 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4739 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4743 case MARSHAL_ACTION_CONV_OUT:
4744 if (klass == date_time_class) {
4745 /* Convert from an OLE DATE type */
4746 static MonoMethod *from_oadate;
4751 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4753 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4754 g_assert (from_oadate);
4756 mono_mb_emit_ldarg (mb, argnum);
4757 mono_mb_emit_ldloc (mb, conv_arg);
4758 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4759 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4764 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4765 klass->blittable || klass->enumtype)
4769 /* dst = argument */
4770 mono_mb_emit_ldarg (mb, argnum);
4771 mono_mb_emit_stloc (mb, 1);
4773 mono_mb_emit_ldloc (mb, 1);
4774 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4776 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4777 /* src = tmp_locals [i] */
4778 mono_mb_emit_ldloc (mb, conv_arg);
4779 mono_mb_emit_stloc (mb, 0);
4781 /* emit valuetype conversion code */
4782 emit_struct_conv (mb, klass, TRUE);
4786 emit_struct_free (mb, klass, conv_arg);
4789 mono_mb_patch_branch (mb, pos);
4792 case MARSHAL_ACTION_CONV_RESULT:
4793 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4795 mono_mb_emit_stloc (mb, 3);
4799 /* load pointer to returned value type */
4800 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4801 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4802 /* store the address of the source into local variable 0 */
4803 mono_mb_emit_stloc (mb, 0);
4805 mono_mb_emit_ldloc_addr (mb, 3);
4806 mono_mb_emit_stloc (mb, 1);
4808 /* emit valuetype conversion code */
4809 emit_struct_conv (mb, klass, TRUE);
4812 case MARSHAL_ACTION_MANAGED_CONV_IN:
4813 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4814 klass->blittable || klass->enumtype) {
4819 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4821 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4825 mono_mb_emit_ldarg (mb, argnum);
4827 mono_mb_emit_ldarg_addr (mb, argnum);
4828 mono_mb_emit_stloc (mb, 0);
4831 mono_mb_emit_ldloc (mb, 0);
4832 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4835 mono_mb_emit_ldloc_addr (mb, conv_arg);
4836 mono_mb_emit_stloc (mb, 1);
4838 /* emit valuetype conversion code */
4839 emit_struct_conv (mb, klass, TRUE);
4842 mono_mb_patch_branch (mb, pos);
4845 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4846 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4847 klass->blittable || klass->enumtype) {
4851 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4854 /* Check for null */
4855 mono_mb_emit_ldarg (mb, argnum);
4856 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4859 mono_mb_emit_ldloc_addr (mb, conv_arg);
4860 mono_mb_emit_stloc (mb, 0);
4863 mono_mb_emit_ldarg (mb, argnum);
4864 mono_mb_emit_stloc (mb, 1);
4866 /* emit valuetype conversion code */
4867 emit_struct_conv (mb, klass, FALSE);
4869 mono_mb_patch_branch (mb, pos2);
4872 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4873 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4874 klass->blittable || klass->enumtype) {
4875 mono_mb_emit_stloc (mb, 3);
4880 /* load pointer to returned value type */
4881 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4882 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4884 /* store the address of the source into local variable 0 */
4885 mono_mb_emit_stloc (mb, 0);
4886 /* allocate space for the native struct and
4887 * store the address into dst_ptr */
4888 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4889 m->retobj_class = klass;
4890 g_assert (m->retobj_var);
4891 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4892 mono_mb_emit_byte (mb, CEE_CONV_I);
4893 mono_mb_emit_icall (mb, mono_marshal_alloc);
4894 mono_mb_emit_stloc (mb, 1);
4895 mono_mb_emit_ldloc (mb, 1);
4896 mono_mb_emit_stloc (mb, m->retobj_var);
4898 /* emit valuetype conversion code */
4899 emit_struct_conv (mb, klass, FALSE);
4903 g_assert_not_reached ();
4910 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4911 MonoMarshalSpec *spec,
4912 int conv_arg, MonoType **conv_arg_type,
4913 MarshalAction action)
4917 case MARSHAL_ACTION_CONV_IN:
4918 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4920 case MARSHAL_ACTION_MANAGED_CONV_IN:
4921 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4925 MonoMethodBuilder *mb = m->mb;
4926 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4927 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4931 case MARSHAL_ACTION_CONV_IN:
4932 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4933 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4936 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4939 mono_mb_emit_ldarg (mb, argnum);
4940 mono_mb_emit_byte (mb, CEE_LDIND_I);
4942 mono_mb_emit_ldarg (mb, argnum);
4946 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4947 mono_mb_emit_exception_marshal_directive (mb, msg);
4949 mono_mb_emit_icall (mb, conv_to_icall (conv));
4951 mono_mb_emit_stloc (mb, conv_arg);
4955 case MARSHAL_ACTION_CONV_OUT:
4956 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4958 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4959 mono_mb_emit_exception_marshal_directive (mb, msg);
4963 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4964 static MonoMethod *m;
4967 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4972 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4973 mono_mb_emit_exception_marshal_directive (mb, msg);
4978 * Have to allocate a new string with the same length as the original, and
4979 * copy the contents of the buffer pointed to by CONV_ARG into it.
4981 g_assert (t->byref);
4982 mono_mb_emit_ldarg (mb, argnum);
4983 mono_mb_emit_ldloc (mb, conv_arg);
4984 mono_mb_emit_ldarg (mb, argnum);
4985 mono_mb_emit_byte (mb, CEE_LDIND_I);
4986 mono_mb_emit_managed_call (mb, m, NULL);
4987 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4988 mono_mb_emit_byte (mb, CEE_STIND_REF);
4989 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4990 mono_mb_emit_ldarg (mb, argnum);
4991 mono_mb_emit_ldloc (mb, conv_arg);
4992 mono_mb_emit_icall (mb, conv_to_icall (conv));
4993 mono_mb_emit_byte (mb, CEE_STIND_REF);
4998 mono_mb_emit_ldloc (mb, conv_arg);
4999 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5000 mono_mb_emit_icall (mb, mono_free_bstr);
5002 mono_mb_emit_icall (mb, mono_marshal_free);
5006 case MARSHAL_ACTION_PUSH:
5007 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5008 mono_mb_emit_ldloc_addr (mb, conv_arg);
5010 mono_mb_emit_ldloc (mb, conv_arg);
5013 case MARSHAL_ACTION_CONV_RESULT:
5014 mono_mb_emit_stloc (mb, 0);
5016 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5018 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5019 mono_mb_emit_exception_marshal_directive (mb, msg);
5023 mono_mb_emit_ldloc (mb, 0);
5024 mono_mb_emit_icall (mb, conv_to_icall (conv));
5025 mono_mb_emit_stloc (mb, 3);
5027 /* free the string */
5028 mono_mb_emit_ldloc (mb, 0);
5029 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5030 mono_mb_emit_icall (mb, mono_free_bstr);
5032 mono_mb_emit_icall (mb, mono_marshal_free);
5035 case MARSHAL_ACTION_MANAGED_CONV_IN:
5036 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5038 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5041 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5045 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5047 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5048 mono_mb_emit_exception_marshal_directive (mb, msg);
5052 mono_mb_emit_ldarg (mb, argnum);
5054 mono_mb_emit_byte (mb, CEE_LDIND_I);
5055 mono_mb_emit_icall (mb, conv_to_icall (conv));
5056 mono_mb_emit_stloc (mb, conv_arg);
5059 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5062 mono_mb_emit_ldarg (mb, argnum);
5063 mono_mb_emit_ldloc (mb, conv_arg);
5064 mono_mb_emit_icall (mb, conv_to_icall (conv));
5065 mono_mb_emit_byte (mb, CEE_STIND_I);
5070 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5071 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5072 /* We need to make a copy so the caller is able to free it */
5073 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5075 mono_mb_emit_icall (mb, conv_to_icall (conv));
5076 mono_mb_emit_stloc (mb, 3);
5080 g_assert_not_reached ();
5088 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5089 MonoMarshalSpec *spec, int conv_arg,
5090 MonoType **conv_arg_type, MarshalAction action)
5093 if (action == MARSHAL_ACTION_CONV_IN)
5094 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5096 MonoMethodBuilder *mb = m->mb;
5099 case MARSHAL_ACTION_CONV_IN: {
5100 MonoType *intptr_type;
5101 int dar_release_slot, pos;
5103 intptr_type = &mono_defaults.int_class->byval_arg;
5104 conv_arg = mono_mb_add_local (mb, intptr_type);
5105 *conv_arg_type = intptr_type;
5107 if (!sh_dangerous_add_ref)
5108 init_safe_handle ();
5110 mono_mb_emit_ldarg (mb, argnum);
5111 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5112 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5114 mono_mb_patch_branch (mb, pos);
5117 * My tests in show that ref SafeHandles are not really
5118 * passed as ref objects. Instead a NULL is passed as the
5121 mono_mb_emit_icon (mb, 0);
5122 mono_mb_emit_stloc (mb, conv_arg);
5126 /* Create local to hold the ref parameter to DangerousAddRef */
5127 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5129 /* set release = false; */
5130 mono_mb_emit_icon (mb, 0);
5131 mono_mb_emit_stloc (mb, dar_release_slot);
5133 /* safehandle.DangerousAddRef (ref release) */
5134 mono_mb_emit_ldarg (mb, argnum);
5135 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5136 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5138 /* Pull the handle field from SafeHandle */
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5141 mono_mb_emit_byte (mb, CEE_LDIND_I);
5142 mono_mb_emit_stloc (mb, conv_arg);
5147 case MARSHAL_ACTION_PUSH:
5149 mono_mb_emit_ldloc_addr (mb, conv_arg);
5151 mono_mb_emit_ldloc (mb, conv_arg);
5154 case MARSHAL_ACTION_CONV_OUT: {
5155 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5156 int dar_release_slot = conv_arg + 1;
5159 if (!sh_dangerous_release)
5160 init_safe_handle ();
5166 * My tests indicate that ref SafeHandles parameters are not actually
5167 * passed by ref, but instead a new Handle is created regardless of
5168 * whether a change happens in the unmanaged side.
5170 * Also, the Handle is created before calling into unmanaged code,
5171 * but we do not support that mechanism (getting to the original
5172 * handle) and it makes no difference where we create this
5174 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5176 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5179 /* refval = new SafeHandleDerived ()*/
5180 mono_mb_emit_ldarg (mb, argnum);
5181 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5182 mono_mb_emit_byte (mb, CEE_STIND_REF);
5184 /* refval.handle = returned_handle */
5185 mono_mb_emit_ldarg (mb, argnum);
5186 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5187 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5188 mono_mb_emit_ldloc (mb, conv_arg);
5189 mono_mb_emit_byte (mb, CEE_STIND_I);
5191 mono_mb_emit_ldloc (mb, dar_release_slot);
5192 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5193 mono_mb_emit_ldarg (mb, argnum);
5194 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5195 mono_mb_patch_branch (mb, label_next);
5200 case MARSHAL_ACTION_CONV_RESULT: {
5201 MonoMethod *ctor = NULL;
5202 int intptr_handle_slot;
5204 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5205 mono_mb_emit_byte (mb, CEE_POP);
5206 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5210 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5212 mono_mb_emit_byte (mb, CEE_POP);
5213 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5216 /* Store the IntPtr results into a local */
5217 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5218 mono_mb_emit_stloc (mb, intptr_handle_slot);
5220 /* Create return value */
5221 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5222 mono_mb_emit_stloc (mb, 3);
5224 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5225 mono_mb_emit_ldloc (mb, 3);
5226 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5227 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5228 mono_mb_emit_byte (mb, CEE_STIND_I);
5232 case MARSHAL_ACTION_MANAGED_CONV_IN:
5233 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5236 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5237 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5240 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5241 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5244 printf ("Unhandled case for MarshalAction: %d\n", action);
5252 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5253 MonoMarshalSpec *spec, int conv_arg,
5254 MonoType **conv_arg_type, MarshalAction action)
5257 if (action == MARSHAL_ACTION_CONV_IN)
5258 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5260 MonoMethodBuilder *mb = m->mb;
5263 case MARSHAL_ACTION_CONV_IN: {
5264 MonoType *intptr_type;
5266 intptr_type = &mono_defaults.int_class->byval_arg;
5267 conv_arg = mono_mb_add_local (mb, intptr_type);
5268 *conv_arg_type = intptr_type;
5271 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5272 mono_mb_emit_exception_marshal_directive (mb, msg);
5275 mono_mb_emit_ldarg_addr (mb, argnum);
5276 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5277 mono_mb_emit_byte (mb, CEE_ADD);
5278 mono_mb_emit_byte (mb, CEE_LDIND_I);
5279 mono_mb_emit_stloc (mb, conv_arg);
5283 case MARSHAL_ACTION_PUSH:
5284 mono_mb_emit_ldloc (mb, conv_arg);
5287 case MARSHAL_ACTION_CONV_OUT: {
5288 /* no resource release required */
5292 case MARSHAL_ACTION_CONV_RESULT: {
5293 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5294 mono_mb_emit_exception_marshal_directive (mb, msg);
5298 case MARSHAL_ACTION_MANAGED_CONV_IN:
5299 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5302 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5303 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5306 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5307 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5310 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5318 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5319 MonoMarshalSpec *spec,
5320 int conv_arg, MonoType **conv_arg_type,
5321 MarshalAction action)
5324 if (action == MARSHAL_ACTION_CONV_IN)
5325 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5327 MonoMethodBuilder *mb = m->mb;
5328 MonoClass *klass = mono_class_from_mono_type (t);
5332 case MARSHAL_ACTION_CONV_IN:
5333 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5334 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5336 m->orig_conv_args [argnum] = 0;
5338 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5339 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5340 mono_mb_emit_exception_marshal_directive (mb, msg);
5344 if (klass->delegate) {
5346 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5347 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5348 mono_mb_emit_exception_marshal_directive (mb, msg);
5350 mono_mb_emit_byte (mb, CEE_LDNULL);
5351 mono_mb_emit_stloc (mb, conv_arg);
5353 mono_mb_emit_ldarg (mb, argnum);
5354 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5355 mono_mb_emit_stloc (mb, conv_arg);
5357 } else if (klass == mono_defaults.stringbuilder_class) {
5358 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5359 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5363 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5364 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5365 mono_mb_emit_exception_marshal_directive (mb, msg);
5371 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5375 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5376 mono_mb_emit_exception_marshal_directive (mb, msg);
5380 mono_mb_emit_ldarg (mb, argnum);
5382 mono_mb_emit_byte (mb, CEE_LDIND_I);
5384 mono_mb_emit_icall (mb, conv_to_icall (conv));
5385 mono_mb_emit_stloc (mb, conv_arg);
5386 } else if (klass->blittable) {
5387 mono_mb_emit_byte (mb, CEE_LDNULL);
5388 mono_mb_emit_stloc (mb, conv_arg);
5390 mono_mb_emit_ldarg (mb, argnum);
5391 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5393 mono_mb_emit_ldarg (mb, argnum);
5394 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5395 mono_mb_emit_stloc (mb, conv_arg);
5397 mono_mb_patch_branch (mb, pos);
5400 mono_mb_emit_byte (mb, CEE_LDNULL);
5401 mono_mb_emit_stloc (mb, conv_arg);
5404 /* we dont need any conversions for out parameters */
5405 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5408 mono_mb_emit_ldarg (mb, argnum);
5409 mono_mb_emit_byte (mb, CEE_LDIND_I);
5412 mono_mb_emit_ldarg (mb, argnum);
5413 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5414 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5417 /* store the address of the source into local variable 0 */
5418 mono_mb_emit_stloc (mb, 0);
5419 mono_mb_emit_ldloc (mb, 0);
5420 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5422 /* allocate space for the native struct and store the address */
5423 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5424 mono_mb_emit_byte (mb, CEE_PREFIX1);
5425 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5426 mono_mb_emit_stloc (mb, conv_arg);
5429 /* Need to store the original buffer so we can free it later */
5430 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5431 mono_mb_emit_ldloc (mb, conv_arg);
5432 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5435 /* set the src_ptr */
5436 mono_mb_emit_ldloc (mb, 0);
5437 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5438 mono_mb_emit_stloc (mb, 0);
5441 mono_mb_emit_ldloc (mb, conv_arg);
5442 mono_mb_emit_stloc (mb, 1);
5444 /* emit valuetype conversion code */
5445 emit_struct_conv (mb, klass, FALSE);
5447 mono_mb_patch_branch (mb, pos);
5451 case MARSHAL_ACTION_CONV_OUT:
5452 if (klass == mono_defaults.stringbuilder_class) {
5454 MonoMarshalNative encoding;
5455 MonoMarshalConv conv;
5457 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5458 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5460 g_assert (encoding != -1);
5463 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5467 mono_mb_emit_ldarg (mb, argnum);
5468 mono_mb_emit_ldloc (mb, conv_arg);
5471 case MONO_NATIVE_LPWSTR:
5472 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5474 case MONO_NATIVE_LPSTR:
5475 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5478 g_assert_not_reached ();
5481 mono_mb_emit_byte (mb, CEE_STIND_REF);
5483 mono_mb_emit_ldarg (mb, argnum);
5484 mono_mb_emit_ldloc (mb, conv_arg);
5486 mono_mb_emit_icall (mb, conv_to_icall (conv));
5490 mono_mb_emit_ldloc (mb, conv_arg);
5491 mono_mb_emit_icall (mb, mono_marshal_free);
5496 if (klass->delegate) {
5498 mono_mb_emit_ldarg (mb, argnum);
5499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5500 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5501 mono_mb_emit_ldloc (mb, conv_arg);
5502 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5503 mono_mb_emit_byte (mb, CEE_STIND_REF);
5508 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5509 /* allocate a new object */
5510 mono_mb_emit_ldarg (mb, argnum);
5511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5512 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5513 mono_mb_emit_byte (mb, CEE_STIND_REF);
5516 /* dst = *argument */
5517 mono_mb_emit_ldarg (mb, argnum);
5520 mono_mb_emit_byte (mb, CEE_LDIND_I);
5522 mono_mb_emit_stloc (mb, 1);
5524 mono_mb_emit_ldloc (mb, 1);
5525 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5527 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5528 mono_mb_emit_ldloc (mb, 1);
5529 mono_mb_emit_icon (mb, sizeof (MonoObject));
5530 mono_mb_emit_byte (mb, CEE_ADD);
5531 mono_mb_emit_stloc (mb, 1);
5533 /* src = tmp_locals [i] */
5534 mono_mb_emit_ldloc (mb, conv_arg);
5535 mono_mb_emit_stloc (mb, 0);
5537 /* emit valuetype conversion code */
5538 emit_struct_conv (mb, klass, TRUE);
5540 /* Free the structure returned by the native code */
5541 emit_struct_free (mb, klass, conv_arg);
5543 if (m->orig_conv_args [argnum]) {
5545 * If the native function changed the pointer, then free
5546 * the original structure plus the new pointer.
5548 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5549 mono_mb_emit_ldloc (mb, conv_arg);
5550 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5552 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5553 g_assert (m->orig_conv_args [argnum]);
5555 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5558 mono_mb_emit_ldloc (mb, conv_arg);
5559 mono_mb_emit_icall (mb, mono_marshal_free);
5561 mono_mb_patch_branch (mb, pos2);
5565 /* Free the original structure passed to native code */
5566 emit_struct_free (mb, klass, conv_arg);
5568 mono_mb_patch_branch (mb, pos);
5571 case MARSHAL_ACTION_PUSH:
5573 mono_mb_emit_ldloc_addr (mb, conv_arg);
5575 mono_mb_emit_ldloc (mb, conv_arg);
5578 case MARSHAL_ACTION_CONV_RESULT:
5579 if (klass->delegate) {
5580 g_assert (!t->byref);
5581 mono_mb_emit_stloc (mb, 0);
5582 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5583 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5584 mono_mb_emit_ldloc (mb, 0);
5585 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5586 mono_mb_emit_stloc (mb, 3);
5589 mono_mb_emit_stloc (mb, 0);
5591 /* Make a copy since emit_conv modifies local 0 */
5592 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5593 mono_mb_emit_ldloc (mb, 0);
5594 mono_mb_emit_stloc (mb, loc);
5596 mono_mb_emit_byte (mb, CEE_LDNULL);
5597 mono_mb_emit_stloc (mb, 3);
5599 mono_mb_emit_ldloc (mb, 0);
5600 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5602 /* allocate result object */
5604 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5605 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5606 mono_mb_emit_stloc (mb, 3);
5610 mono_mb_emit_ldloc (mb, 3);
5611 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5612 mono_mb_emit_stloc (mb, 1);
5614 /* emit conversion code */
5615 emit_struct_conv (mb, klass, TRUE);
5617 emit_struct_free (mb, klass, loc);
5619 /* Free the pointer allocated by unmanaged code */
5620 mono_mb_emit_ldloc (mb, loc);
5621 mono_mb_emit_icall (mb, mono_marshal_free);
5622 mono_mb_patch_branch (mb, pos);
5626 case MARSHAL_ACTION_MANAGED_CONV_IN:
5627 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5629 if (klass->delegate) {
5630 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5631 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5632 mono_mb_emit_ldarg (mb, argnum);
5634 mono_mb_emit_byte (mb, CEE_LDIND_I);
5635 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5636 mono_mb_emit_stloc (mb, conv_arg);
5640 if (klass == mono_defaults.stringbuilder_class) {
5641 MonoMarshalNative encoding;
5643 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5646 g_assert (encoding == MONO_NATIVE_LPSTR);
5648 g_assert (!t->byref);
5649 g_assert (encoding != -1);
5651 mono_mb_emit_ldarg (mb, argnum);
5652 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5653 mono_mb_emit_stloc (mb, conv_arg);
5657 /* The class can not have an automatic layout */
5658 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5659 mono_mb_emit_auto_layout_exception (mb, klass);
5663 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5664 mono_mb_emit_byte (mb, CEE_LDNULL);
5665 mono_mb_emit_stloc (mb, conv_arg);
5670 mono_mb_emit_ldarg (mb, argnum);
5674 /* Check for NULL and raise an exception */
5675 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5677 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5679 mono_mb_patch_branch (mb, pos2);
5680 mono_mb_emit_ldarg (mb, argnum);
5681 mono_mb_emit_byte (mb, CEE_LDIND_I);
5684 mono_mb_emit_stloc (mb, 0);
5686 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5687 mono_mb_emit_stloc (mb, conv_arg);
5689 mono_mb_emit_ldloc (mb, 0);
5690 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5692 /* Create and set dst */
5693 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5694 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5695 mono_mb_emit_stloc (mb, conv_arg);
5696 mono_mb_emit_ldloc (mb, conv_arg);
5697 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5698 mono_mb_emit_stloc (mb, 1);
5700 /* emit valuetype conversion code */
5701 emit_struct_conv (mb, klass, TRUE);
5703 mono_mb_patch_branch (mb, pos);
5706 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5707 if (klass->delegate) {
5709 mono_mb_emit_ldarg (mb, argnum);
5710 mono_mb_emit_ldloc (mb, conv_arg);
5711 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5712 mono_mb_emit_byte (mb, CEE_STIND_I);
5718 /* Check for null */
5719 mono_mb_emit_ldloc (mb, conv_arg);
5720 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5721 mono_mb_emit_ldarg (mb, argnum);
5722 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5723 mono_mb_emit_byte (mb, CEE_STIND_REF);
5724 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5726 mono_mb_patch_branch (mb, pos);
5729 mono_mb_emit_ldloc (mb, conv_arg);
5730 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5731 mono_mb_emit_stloc (mb, 0);
5733 /* Allocate and set dest */
5734 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5735 mono_mb_emit_byte (mb, CEE_CONV_I);
5736 mono_mb_emit_icall (mb, mono_marshal_alloc);
5737 mono_mb_emit_stloc (mb, 1);
5739 /* Update argument pointer */
5740 mono_mb_emit_ldarg (mb, argnum);
5741 mono_mb_emit_ldloc (mb, 1);
5742 mono_mb_emit_byte (mb, CEE_STIND_I);
5744 /* emit valuetype conversion code */
5745 emit_struct_conv (mb, klass, FALSE);
5747 mono_mb_patch_branch (mb, pos2);
5748 } else if (klass == mono_defaults.stringbuilder_class) {
5749 // FIXME: What to do here ?
5751 /* byval [Out] marshalling */
5753 /* FIXME: Handle null */
5756 mono_mb_emit_ldloc (mb, conv_arg);
5757 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5758 mono_mb_emit_stloc (mb, 0);
5761 mono_mb_emit_ldarg (mb, argnum);
5762 mono_mb_emit_stloc (mb, 1);
5764 /* emit valuetype conversion code */
5765 emit_struct_conv (mb, klass, FALSE);
5769 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5770 if (klass->delegate) {
5771 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5772 mono_mb_emit_stloc (mb, 3);
5776 /* The class can not have an automatic layout */
5777 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5778 mono_mb_emit_auto_layout_exception (mb, klass);
5782 mono_mb_emit_stloc (mb, 0);
5783 /* Check for null */
5784 mono_mb_emit_ldloc (mb, 0);
5785 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5786 mono_mb_emit_byte (mb, CEE_LDNULL);
5787 mono_mb_emit_stloc (mb, 3);
5788 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5790 mono_mb_patch_branch (mb, pos);
5793 mono_mb_emit_ldloc (mb, 0);
5794 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5795 mono_mb_emit_stloc (mb, 0);
5797 /* Allocate and set dest */
5798 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5799 mono_mb_emit_byte (mb, CEE_CONV_I);
5800 mono_mb_emit_icall (mb, mono_marshal_alloc);
5801 mono_mb_emit_byte (mb, CEE_DUP);
5802 mono_mb_emit_stloc (mb, 1);
5803 mono_mb_emit_stloc (mb, 3);
5805 emit_struct_conv (mb, klass, FALSE);
5807 mono_mb_patch_branch (mb, pos2);
5811 g_assert_not_reached ();
5822 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5823 MonoMarshalSpec *spec,
5824 int conv_arg, MonoType **conv_arg_type,
5825 MarshalAction action)
5827 MonoMethodBuilder *mb = m->mb;
5828 static MonoMethod *get_object_for_native_variant = NULL;
5829 static MonoMethod *get_native_variant_for_object = NULL;
5831 if (!get_object_for_native_variant)
5832 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5833 g_assert (get_object_for_native_variant);
5835 if (!get_native_variant_for_object)
5836 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5837 g_assert (get_native_variant_for_object);
5840 case MARSHAL_ACTION_CONV_IN: {
5841 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5844 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5846 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5848 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5851 mono_mb_emit_ldarg (mb, argnum);
5853 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5854 mono_mb_emit_ldloc_addr (mb, conv_arg);
5855 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5859 case MARSHAL_ACTION_CONV_OUT: {
5860 static MonoMethod *variant_clear = NULL;
5863 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5864 g_assert (variant_clear);
5867 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5868 mono_mb_emit_ldarg (mb, argnum);
5869 mono_mb_emit_ldloc_addr (mb, conv_arg);
5870 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5871 mono_mb_emit_byte (mb, CEE_STIND_REF);
5874 mono_mb_emit_ldloc_addr (mb, conv_arg);
5875 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5879 case MARSHAL_ACTION_PUSH:
5881 mono_mb_emit_ldloc_addr (mb, conv_arg);
5883 mono_mb_emit_ldloc (mb, conv_arg);
5886 case MARSHAL_ACTION_CONV_RESULT: {
5887 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5888 mono_mb_emit_exception_marshal_directive (mb, msg);
5892 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5893 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5896 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5898 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5900 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5904 mono_mb_emit_ldarg (mb, argnum);
5906 mono_mb_emit_ldarg_addr (mb, argnum);
5907 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5908 mono_mb_emit_stloc (mb, conv_arg);
5912 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5913 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5914 mono_mb_emit_ldloc (mb, conv_arg);
5915 mono_mb_emit_ldarg (mb, argnum);
5916 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5921 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5922 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5923 mono_mb_emit_exception_marshal_directive (mb, msg);
5928 g_assert_not_reached ();
5934 #endif /* DISABLE_COM */
5935 #endif /* DISABLE_JIT */
5938 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5940 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5941 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5943 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5945 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5957 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5958 MonoMarshalSpec *spec,
5959 int conv_arg, MonoType **conv_arg_type,
5960 MarshalAction action)
5964 case MARSHAL_ACTION_CONV_IN:
5965 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5967 case MARSHAL_ACTION_MANAGED_CONV_IN:
5968 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5972 MonoMethodBuilder *mb = m->mb;
5973 MonoClass *klass = mono_class_from_mono_type (t);
5974 gboolean need_convert, need_free;
5975 MonoMarshalNative encoding;
5977 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5980 case MARSHAL_ACTION_CONV_IN:
5981 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5982 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5984 if (klass->element_class->blittable) {
5985 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_byte (mb, CEE_LDIND_I);
5988 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5989 mono_mb_emit_stloc (mb, conv_arg);
5992 guint32 label1, label2, label3;
5993 int index_var, src_var, dest_ptr, esize;
5994 MonoMarshalConv conv;
5995 gboolean is_string = FALSE;
5997 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5999 eklass = klass->element_class;
6001 if (eklass == mono_defaults.string_class) {
6003 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6005 else if (eklass == mono_defaults.stringbuilder_class) {
6007 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6012 if (is_string && conv == -1) {
6013 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6014 mono_mb_emit_exception_marshal_directive (mb, msg);
6018 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6019 mono_mb_emit_ldarg (mb, argnum);
6021 mono_mb_emit_byte (mb, CEE_LDIND_I);
6022 mono_mb_emit_stloc (mb, src_var);
6025 mono_mb_emit_ldloc (mb, src_var);
6026 mono_mb_emit_stloc (mb, conv_arg);
6027 mono_mb_emit_ldloc (mb, src_var);
6028 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6031 esize = sizeof (gpointer);
6032 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6033 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6035 esize = mono_class_native_size (eklass, NULL);
6037 /* allocate space for the native struct and store the address */
6038 mono_mb_emit_icon (mb, esize);
6039 mono_mb_emit_ldloc (mb, src_var);
6040 mono_mb_emit_byte (mb, CEE_LDLEN);
6042 if (eklass == mono_defaults.string_class) {
6043 /* Make the array bigger for the terminating null */
6044 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6045 mono_mb_emit_byte (mb, CEE_ADD);
6047 mono_mb_emit_byte (mb, CEE_MUL);
6048 mono_mb_emit_byte (mb, CEE_PREFIX1);
6049 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6050 mono_mb_emit_stloc (mb, conv_arg);
6052 mono_mb_emit_ldloc (mb, conv_arg);
6053 mono_mb_emit_stloc (mb, dest_ptr);
6055 /* Emit marshalling loop */
6056 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6057 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6058 mono_mb_emit_stloc (mb, index_var);
6059 label2 = mono_mb_get_label (mb);
6060 mono_mb_emit_ldloc (mb, index_var);
6061 mono_mb_emit_ldloc (mb, src_var);
6062 mono_mb_emit_byte (mb, CEE_LDLEN);
6063 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6065 /* Emit marshalling code */
6068 mono_mb_emit_ldloc (mb, dest_ptr);
6069 mono_mb_emit_ldloc (mb, src_var);
6070 mono_mb_emit_ldloc (mb, index_var);
6071 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6072 mono_mb_emit_icall (mb, conv_to_icall (conv));
6073 mono_mb_emit_byte (mb, CEE_STIND_I);
6075 /* set the src_ptr */
6076 mono_mb_emit_ldloc (mb, src_var);
6077 mono_mb_emit_ldloc (mb, index_var);
6078 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6079 mono_mb_emit_stloc (mb, 0);
6082 mono_mb_emit_ldloc (mb, dest_ptr);
6083 mono_mb_emit_stloc (mb, 1);
6085 /* emit valuetype conversion code */
6086 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
6089 mono_mb_emit_add_to_local (mb, index_var, 1);
6090 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6092 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6094 mono_mb_patch_branch (mb, label3);
6096 if (eklass == mono_defaults.string_class) {
6097 /* Null terminate */
6098 mono_mb_emit_ldloc (mb, dest_ptr);
6099 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6100 mono_mb_emit_byte (mb, CEE_STIND_REF);
6103 mono_mb_patch_branch (mb, label1);
6108 case MARSHAL_ACTION_CONV_OUT:
6109 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6110 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);
6111 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6114 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6115 int param_num = spec->data.array_data.param_num;
6116 MonoType *param_type;
6118 param_type = m->sig->params [param_num];
6120 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6121 char *msg = g_strdup ("Not implemented.");
6122 mono_mb_emit_exception_marshal_directive (mb, msg);
6126 mono_mb_emit_ldarg (mb, argnum);
6128 /* Create the managed array */
6129 mono_mb_emit_ldarg (mb, param_num);
6130 if (m->sig->params [param_num]->byref)
6131 // FIXME: Support other types
6132 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6133 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6134 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6135 /* Store into argument */
6136 mono_mb_emit_byte (mb, CEE_STIND_I);
6139 if (need_convert || need_free) {
6140 /* FIXME: Optimize blittable case */
6142 guint32 label1, label2, label3;
6143 int index_var, src_ptr, loc, esize;
6145 eklass = klass->element_class;
6146 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6147 esize = sizeof (gpointer);
6148 else if (eklass == mono_defaults.char_class)
6149 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6151 esize = mono_class_native_size (eklass, NULL);
6152 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6153 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6156 mono_mb_emit_ldarg (mb, argnum);
6158 mono_mb_emit_byte (mb, CEE_LDIND_I);
6159 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6161 mono_mb_emit_ldloc (mb, conv_arg);
6162 mono_mb_emit_stloc (mb, src_ptr);
6164 /* Emit marshalling loop */
6165 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6166 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6167 mono_mb_emit_stloc (mb, index_var);
6168 label2 = mono_mb_get_label (mb);
6169 mono_mb_emit_ldloc (mb, index_var);
6170 mono_mb_emit_ldarg (mb, argnum);
6172 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6173 mono_mb_emit_byte (mb, CEE_LDLEN);
6174 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6176 /* Emit marshalling code */
6178 if (eklass == mono_defaults.stringbuilder_class) {
6179 gboolean need_free2;
6180 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6182 g_assert (conv != -1);
6185 mono_mb_emit_ldarg (mb, argnum);
6187 mono_mb_emit_byte (mb, CEE_LDIND_I);
6188 mono_mb_emit_ldloc (mb, index_var);
6189 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6192 mono_mb_emit_ldloc (mb, src_ptr);
6193 mono_mb_emit_byte (mb, CEE_LDIND_I);
6195 mono_mb_emit_icall (mb, conv_to_icall (conv));
6199 mono_mb_emit_ldloc (mb, src_ptr);
6200 mono_mb_emit_byte (mb, CEE_LDIND_I);
6202 mono_mb_emit_icall (mb, mono_marshal_free);
6205 else if (eklass == mono_defaults.string_class) {
6208 mono_mb_emit_ldloc (mb, src_ptr);
6209 mono_mb_emit_byte (mb, CEE_LDIND_I);
6211 mono_mb_emit_icall (mb, mono_marshal_free);
6216 /* set the src_ptr */
6217 mono_mb_emit_ldloc (mb, src_ptr);
6218 mono_mb_emit_stloc (mb, 0);
6221 mono_mb_emit_ldarg (mb, argnum);
6223 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6224 mono_mb_emit_ldloc (mb, index_var);
6225 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6226 mono_mb_emit_stloc (mb, 1);
6228 /* emit valuetype conversion code */
6229 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6233 mono_mb_emit_ldloc (mb, src_ptr);
6234 mono_mb_emit_stloc (mb, loc);
6235 mono_mb_emit_ldloc (mb, loc);
6237 emit_struct_free (mb, eklass, loc);
6241 mono_mb_emit_add_to_local (mb, index_var, 1);
6242 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6244 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6246 mono_mb_patch_branch (mb, label1);
6247 mono_mb_patch_branch (mb, label3);
6250 if (klass->element_class->blittable) {
6251 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6253 mono_mb_emit_ldarg (mb, argnum);
6255 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6256 mono_mb_emit_ldloc (mb, conv_arg);
6257 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6262 case MARSHAL_ACTION_PUSH:
6264 mono_mb_emit_ldloc_addr (mb, conv_arg);
6266 mono_mb_emit_ldloc (mb, conv_arg);
6269 case MARSHAL_ACTION_CONV_RESULT:
6270 /* fixme: we need conversions here */
6271 mono_mb_emit_stloc (mb, 3);
6274 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6276 guint32 label1, label2, label3;
6277 int index_var, src_ptr, esize, param_num, num_elem;
6278 MonoMarshalConv conv;
6279 gboolean is_string = FALSE;
6281 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6282 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6285 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6286 mono_mb_emit_exception_marshal_directive (mb, msg);
6290 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6291 mono_mb_emit_exception_marshal_directive (mb, msg);
6294 if (spec->native != MONO_NATIVE_LPARRAY) {
6295 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6296 mono_mb_emit_exception_marshal_directive (mb, msg);
6300 /* FIXME: t is from the method which is wrapped, not the delegate type */
6301 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6303 param_num = spec->data.array_data.param_num;
6304 num_elem = spec->data.array_data.num_elem;
6305 if (spec->data.array_data.elem_mult == 0)
6306 /* param_num is not specified */
6309 if (param_num == -1) {
6310 if (num_elem <= 0) {
6311 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6312 mono_mb_emit_exception_marshal_directive (mb, msg);
6317 /* FIXME: Optimize blittable case */
6319 eklass = klass->element_class;
6320 if (eklass == mono_defaults.string_class) {
6322 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6324 else if (eklass == mono_defaults.stringbuilder_class) {
6326 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6331 mono_marshal_load_type_info (eklass);
6334 esize = sizeof (gpointer);
6336 esize = mono_class_native_size (eklass, NULL);
6337 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6339 mono_mb_emit_byte (mb, CEE_LDNULL);
6340 mono_mb_emit_stloc (mb, conv_arg);
6342 /* Check param index */
6343 if (param_num != -1) {
6344 if (param_num >= m->sig->param_count) {
6345 char *msg = g_strdup ("Array size control parameter index is out of range.");
6346 mono_mb_emit_exception_marshal_directive (mb, msg);
6349 switch (m->sig->params [param_num]->type) {
6362 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6363 mono_mb_emit_exception_marshal_directive (mb, msg);
6370 mono_mb_emit_ldarg (mb, argnum);
6371 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6373 mono_mb_emit_ldarg (mb, argnum);
6374 mono_mb_emit_stloc (mb, src_ptr);
6376 /* Create managed array */
6378 * The LPArray marshalling spec says that sometimes param_num starts
6379 * from 1, sometimes it starts from 0. But MS seems to allways start
6383 if (param_num == -1) {
6384 mono_mb_emit_icon (mb, num_elem);
6386 mono_mb_emit_ldarg (mb, param_num);
6388 mono_mb_emit_icon (mb, num_elem);
6389 mono_mb_emit_byte (mb, CEE_ADD);
6391 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6394 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6395 mono_mb_emit_stloc (mb, conv_arg);
6397 if (eklass->blittable) {
6398 mono_mb_emit_ldloc (mb, conv_arg);
6399 mono_mb_emit_byte (mb, CEE_CONV_I);
6400 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6401 mono_mb_emit_byte (mb, CEE_ADD);
6402 mono_mb_emit_ldarg (mb, argnum);
6403 mono_mb_emit_ldloc (mb, conv_arg);
6404 mono_mb_emit_byte (mb, CEE_LDLEN);
6405 mono_mb_emit_icon (mb, esize);
6406 mono_mb_emit_byte (mb, CEE_MUL);
6407 mono_mb_emit_byte (mb, CEE_PREFIX1);
6408 mono_mb_emit_byte (mb, CEE_CPBLK);
6412 /* Emit marshalling loop */
6413 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6414 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6415 mono_mb_emit_stloc (mb, index_var);
6416 label2 = mono_mb_get_label (mb);
6417 mono_mb_emit_ldloc (mb, index_var);
6418 mono_mb_emit_ldloc (mb, conv_arg);
6419 mono_mb_emit_byte (mb, CEE_LDLEN);
6420 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6422 /* Emit marshalling code */
6424 g_assert (conv != -1);
6426 mono_mb_emit_ldloc (mb, conv_arg);
6427 mono_mb_emit_ldloc (mb, index_var);
6429 mono_mb_emit_ldloc (mb, src_ptr);
6430 mono_mb_emit_byte (mb, CEE_LDIND_I);
6432 mono_mb_emit_icall (mb, conv_to_icall (conv));
6433 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6436 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6437 mono_mb_emit_exception_marshal_directive (mb, msg);
6441 mono_mb_emit_add_to_local (mb, index_var, 1);
6442 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6444 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6446 mono_mb_patch_branch (mb, label1);
6447 mono_mb_patch_branch (mb, label3);
6451 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6453 guint32 label1, label2, label3;
6454 int index_var, dest_ptr, esize, param_num, num_elem;
6455 MonoMarshalConv conv;
6456 gboolean is_string = FALSE;
6459 /* Already handled in CONV_IN */
6462 /* These are already checked in CONV_IN */
6463 g_assert (!t->byref);
6464 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6465 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6467 param_num = spec->data.array_data.param_num;
6468 num_elem = spec->data.array_data.num_elem;
6470 if (spec->data.array_data.elem_mult == 0)
6471 /* param_num is not specified */
6474 if (param_num == -1) {
6475 if (num_elem <= 0) {
6476 g_assert_not_reached ();
6480 /* FIXME: Optimize blittable case */
6482 eklass = klass->element_class;
6483 if (eklass == mono_defaults.string_class) {
6485 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6487 else if (eklass == mono_defaults.stringbuilder_class) {
6489 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6494 mono_marshal_load_type_info (eklass);
6497 esize = sizeof (gpointer);
6499 esize = mono_class_native_size (eklass, NULL);
6501 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6504 mono_mb_emit_ldloc (mb, conv_arg);
6505 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6507 mono_mb_emit_ldarg (mb, argnum);
6508 mono_mb_emit_stloc (mb, dest_ptr);
6510 if (eklass->blittable) {
6512 mono_mb_emit_ldarg (mb, argnum);
6514 mono_mb_emit_ldloc (mb, conv_arg);
6515 mono_mb_emit_byte (mb, CEE_CONV_I);
6516 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6517 mono_mb_emit_byte (mb, CEE_ADD);
6519 mono_mb_emit_ldloc (mb, conv_arg);
6520 mono_mb_emit_byte (mb, CEE_LDLEN);
6521 mono_mb_emit_icon (mb, esize);
6522 mono_mb_emit_byte (mb, CEE_MUL);
6523 mono_mb_emit_byte (mb, CEE_PREFIX1);
6524 mono_mb_emit_byte (mb, CEE_CPBLK);
6528 /* Emit marshalling loop */
6529 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6530 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6531 mono_mb_emit_stloc (mb, index_var);
6532 label2 = mono_mb_get_label (mb);
6533 mono_mb_emit_ldloc (mb, index_var);
6534 mono_mb_emit_ldloc (mb, conv_arg);
6535 mono_mb_emit_byte (mb, CEE_LDLEN);
6536 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6538 /* Emit marshalling code */
6540 g_assert (conv != -1);
6543 mono_mb_emit_ldloc (mb, dest_ptr);
6546 mono_mb_emit_ldloc (mb, conv_arg);
6547 mono_mb_emit_ldloc (mb, index_var);
6549 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6551 mono_mb_emit_icall (mb, conv_to_icall (conv));
6552 mono_mb_emit_byte (mb, CEE_STIND_I);
6555 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6556 mono_mb_emit_exception_marshal_directive (mb, msg);
6560 mono_mb_emit_add_to_local (mb, index_var, 1);
6561 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6563 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6565 mono_mb_patch_branch (mb, label1);
6566 mono_mb_patch_branch (mb, label3);
6570 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6572 guint32 label1, label2, label3;
6573 int index_var, src, dest, esize;
6574 MonoMarshalConv conv = -1;
6575 gboolean is_string = FALSE;
6577 g_assert (!t->byref);
6579 eklass = klass->element_class;
6581 mono_marshal_load_type_info (eklass);
6583 if (eklass == mono_defaults.string_class) {
6585 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6588 g_assert_not_reached ();
6592 esize = sizeof (gpointer);
6593 else if (eklass == mono_defaults.char_class)
6594 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6596 esize = mono_class_native_size (eklass, NULL);
6598 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6599 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6601 mono_mb_emit_stloc (mb, src);
6602 mono_mb_emit_ldloc (mb, src);
6603 mono_mb_emit_stloc (mb, 3);
6605 /* Check for null */
6606 mono_mb_emit_ldloc (mb, src);
6607 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6609 /* Allocate native array */
6610 mono_mb_emit_icon (mb, esize);
6611 mono_mb_emit_ldloc (mb, src);
6612 mono_mb_emit_byte (mb, CEE_LDLEN);
6614 if (eklass == mono_defaults.string_class) {
6615 /* Make the array bigger for the terminating null */
6616 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6617 mono_mb_emit_byte (mb, CEE_ADD);
6619 mono_mb_emit_byte (mb, CEE_MUL);
6620 mono_mb_emit_icall (mb, mono_marshal_alloc);
6621 mono_mb_emit_stloc (mb, dest);
6622 mono_mb_emit_ldloc (mb, dest);
6623 mono_mb_emit_stloc (mb, 3);
6625 /* Emit marshalling loop */
6626 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6627 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6628 mono_mb_emit_stloc (mb, index_var);
6629 label2 = mono_mb_get_label (mb);
6630 mono_mb_emit_ldloc (mb, index_var);
6631 mono_mb_emit_ldloc (mb, src);
6632 mono_mb_emit_byte (mb, CEE_LDLEN);
6633 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6635 /* Emit marshalling code */
6637 g_assert (conv != -1);
6640 mono_mb_emit_ldloc (mb, dest);
6643 mono_mb_emit_ldloc (mb, src);
6644 mono_mb_emit_ldloc (mb, index_var);
6646 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6648 mono_mb_emit_icall (mb, conv_to_icall (conv));
6649 mono_mb_emit_byte (mb, CEE_STIND_I);
6652 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6653 mono_mb_emit_exception_marshal_directive (mb, msg);
6657 mono_mb_emit_add_to_local (mb, index_var, 1);
6658 mono_mb_emit_add_to_local (mb, dest, esize);
6660 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6662 mono_mb_patch_branch (mb, label3);
6663 mono_mb_patch_branch (mb, label1);
6667 g_assert_not_reached ();
6674 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6677 return &mono_defaults.int32_class->byval_arg;
6679 switch (spec->native) {
6680 case MONO_NATIVE_I1:
6681 case MONO_NATIVE_U1:
6682 return &mono_defaults.byte_class->byval_arg;
6683 case MONO_NATIVE_VARIANTBOOL:
6684 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6685 return &mono_defaults.int16_class->byval_arg;
6686 case MONO_NATIVE_BOOLEAN:
6687 return &mono_defaults.int32_class->byval_arg;
6689 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6690 return &mono_defaults.int32_class->byval_arg;
6696 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6698 MonoClass* conv_arg_class = mono_defaults.int32_class;
6700 switch (spec->native) {
6701 case MONO_NATIVE_I1:
6702 case MONO_NATIVE_U1:
6703 conv_arg_class = mono_defaults.byte_class;
6704 if (ldop) *ldop = CEE_LDIND_I1;
6706 case MONO_NATIVE_VARIANTBOOL:
6707 conv_arg_class = mono_defaults.int16_class;
6708 if (ldop) *ldop = CEE_LDIND_I2;
6710 case MONO_NATIVE_BOOLEAN:
6713 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6716 return conv_arg_class;
6720 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6721 MonoMarshalSpec *spec,
6722 int conv_arg, MonoType **conv_arg_type,
6723 MarshalAction action)
6727 case MARSHAL_ACTION_CONV_IN:
6729 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6731 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6734 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6735 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6737 *conv_arg_type = &conv_arg_class->this_arg;
6739 *conv_arg_type = &conv_arg_class->byval_arg;
6745 MonoMethodBuilder *mb = m->mb;
6748 case MARSHAL_ACTION_CONV_IN: {
6749 MonoType *local_type;
6751 guint8 ldc_op = CEE_LDC_I4_1;
6753 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6755 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6757 *conv_arg_type = local_type;
6758 conv_arg = mono_mb_add_local (mb, local_type);
6760 mono_mb_emit_ldarg (mb, argnum);
6762 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6763 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6764 mono_mb_emit_byte (mb, ldc_op);
6765 mono_mb_emit_stloc (mb, conv_arg);
6766 mono_mb_patch_branch (mb, label_false);
6771 case MARSHAL_ACTION_CONV_OUT:
6773 int label_false, label_end;
6777 mono_mb_emit_ldarg (mb, argnum);
6778 mono_mb_emit_ldloc (mb, conv_arg);
6780 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6781 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6783 label_end = mono_mb_emit_branch (mb, CEE_BR);
6784 mono_mb_patch_branch (mb, label_false);
6785 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6786 mono_mb_patch_branch (mb, label_end);
6788 mono_mb_emit_byte (mb, CEE_STIND_I1);
6792 case MARSHAL_ACTION_PUSH:
6794 mono_mb_emit_ldloc_addr (mb, conv_arg);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6798 mono_mb_emit_ldarg (mb, argnum);
6801 case MARSHAL_ACTION_CONV_RESULT:
6802 /* maybe we need to make sure that it fits within 8 bits */
6803 mono_mb_emit_stloc (mb, 3);
6806 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6807 MonoClass* conv_arg_class = mono_defaults.int32_class;
6808 guint8 ldop = CEE_LDIND_I4;
6809 int label_null, label_false;
6811 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6812 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6815 *conv_arg_type = &conv_arg_class->this_arg;
6817 *conv_arg_type = &conv_arg_class->byval_arg;
6820 mono_mb_emit_ldarg (mb, argnum);
6824 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6825 mono_mb_emit_ldarg (mb, argnum);
6826 mono_mb_emit_byte (mb, ldop);
6830 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6831 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6832 mono_mb_emit_stloc (mb, conv_arg);
6833 mono_mb_patch_branch (mb, label_false);
6836 mono_mb_patch_branch (mb, label_null);
6840 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6841 guint8 stop = CEE_STIND_I4;
6842 guint8 ldc_op = CEE_LDC_I4_1;
6843 int label_null,label_false, label_end;;
6848 switch (spec->native) {
6849 case MONO_NATIVE_I1:
6850 case MONO_NATIVE_U1:
6851 stop = CEE_STIND_I1;
6853 case MONO_NATIVE_VARIANTBOOL:
6854 stop = CEE_STIND_I2;
6855 ldc_op = CEE_LDC_I4_M1;
6863 mono_mb_emit_ldarg (mb, argnum);
6864 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6866 mono_mb_emit_ldarg (mb, argnum);
6867 mono_mb_emit_ldloc (mb, conv_arg);
6869 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6870 mono_mb_emit_byte (mb, ldc_op);
6871 label_end = mono_mb_emit_branch (mb, CEE_BR);
6873 mono_mb_patch_branch (mb, label_false);
6874 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6875 mono_mb_patch_branch (mb, label_end);
6877 mono_mb_emit_byte (mb, stop);
6878 mono_mb_patch_branch (mb, label_null);
6883 g_assert_not_reached ();
6890 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6891 MonoMarshalSpec *spec, int conv_arg,
6892 MonoType **conv_arg_type, MarshalAction action)
6895 MonoMethodBuilder *mb = m->mb;
6898 case MARSHAL_ACTION_CONV_IN:
6899 /* MS seems to allow this in some cases, ie. bxc #158 */
6901 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6902 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6903 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6908 case MARSHAL_ACTION_PUSH:
6909 mono_mb_emit_ldarg (mb, argnum);
6912 case MARSHAL_ACTION_CONV_RESULT:
6913 /* no conversions necessary */
6914 mono_mb_emit_stloc (mb, 3);
6925 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6926 MonoMarshalSpec *spec, int conv_arg,
6927 MonoType **conv_arg_type, MarshalAction action)
6930 MonoMethodBuilder *mb = m->mb;
6933 case MARSHAL_ACTION_PUSH:
6934 /* fixme: dont know how to marshal that. We cant simply
6935 * convert it to a one byte UTF8 character, because an
6936 * unicode character may need more that one byte in UTF8 */
6937 mono_mb_emit_ldarg (mb, argnum);
6940 case MARSHAL_ACTION_CONV_RESULT:
6941 /* fixme: we need conversions here */
6942 mono_mb_emit_stloc (mb, 3);
6953 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6954 MonoMarshalSpec *spec, int conv_arg,
6955 MonoType **conv_arg_type, MarshalAction action)
6958 MonoMethodBuilder *mb = m->mb;
6961 case MARSHAL_ACTION_PUSH:
6962 mono_mb_emit_ldarg (mb, argnum);
6965 case MARSHAL_ACTION_CONV_RESULT:
6966 /* no conversions necessary */
6967 mono_mb_emit_stloc (mb, 3);
6978 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6979 MonoMarshalSpec *spec, int conv_arg,
6980 MonoType **conv_arg_type, MarshalAction action)
6982 /* Ensure that we have marshalling info for this param */
6983 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6985 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6986 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6988 if (spec && spec->native == MONO_NATIVE_ASANY)
6989 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6992 case MONO_TYPE_VALUETYPE:
6993 if (t->data.klass == mono_defaults.handleref_class)
6994 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6996 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6997 case MONO_TYPE_STRING:
6998 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6999 case MONO_TYPE_CLASS:
7000 case MONO_TYPE_OBJECT:
7002 if (spec && spec->native == MONO_NATIVE_STRUCT)
7003 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7005 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7006 spec->native == MONO_NATIVE_IDISPATCH ||
7007 spec->native == MONO_NATIVE_INTERFACE))
7008 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7009 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7010 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7011 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7012 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7015 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7016 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7017 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7019 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7020 case MONO_TYPE_ARRAY:
7021 case MONO_TYPE_SZARRAY:
7022 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7023 case MONO_TYPE_BOOLEAN:
7024 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7026 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7027 case MONO_TYPE_CHAR:
7028 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7041 case MONO_TYPE_FNPTR:
7042 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7043 case MONO_TYPE_GENERICINST:
7044 if (mono_type_generic_inst_is_valuetype (t))
7045 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7047 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7055 * mono_marshal_emit_native_wrapper:
7056 * @image: the image to use for looking up custom marshallers
7057 * @sig: The signature of the native function
7058 * @piinfo: Marshalling information
7059 * @mspecs: Marshalling information
7060 * @aot: whenever the created method will be compiled by the AOT compiler
7061 * @method: if non-NULL, the pinvoke method to call
7062 * @check_exceptions: Whenever to check for pending exceptions after the native call
7063 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7065 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7068 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)
7070 EmitMarshalContext m;
7071 MonoMethodSignature *csig;
7073 int i, argnum, *tmp_locals;
7074 int type, param_shift = 0;
7075 static MonoMethodSignature *get_last_error_sig = NULL;
7076 int coop_gc_stack_dummy, coop_gc_var;
7078 memset (&m, 0, sizeof (m));
7083 /* we copy the signature, so that we can set pinvoke to 0 */
7085 /* The function address is passed as the first argument */
7086 g_assert (!sig->hasthis);
7089 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7097 /* we allocate local for use with emit_struct_conv() */
7098 /* allocate local 0 (pointer) src_ptr */
7099 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7100 /* allocate local 1 (pointer) dst_ptr */
7101 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7102 /* allocate local 2 (boolean) delete_old */
7103 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7105 /* delete_old = FALSE */
7106 mono_mb_emit_icon (mb, 0);
7107 mono_mb_emit_stloc (mb, 2);
7109 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7110 /* allocate local 3 to store the return value */
7111 mono_mb_add_local (mb, sig->ret);
7114 if (mono_threads_is_coop_enabled ()) {
7115 /* local 4, dummy local used to get a stack address for suspend funcs */
7116 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7117 /* local 5, the local to be used when calling the suspend funcs */
7118 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7121 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7122 /* Return type custom marshaling */
7124 * Since we can't determine the return type of the unmanaged function,
7125 * we assume it returns a pointer, and pass that pointer to
7126 * MarshalNativeToManaged.
7128 csig->ret = &mono_defaults.int_class->byval_arg;
7131 /* we first do all conversions */
7132 tmp_locals = alloca (sizeof (int) * sig->param_count);
7133 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7135 for (i = 0; i < sig->param_count; i ++) {
7136 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7139 /* push all arguments */
7142 mono_mb_emit_byte (mb, CEE_LDARG_0);
7144 for (i = 0; i < sig->param_count; i++) {
7145 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7148 if (mono_threads_is_coop_enabled ()) {
7149 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7150 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7151 mono_mb_emit_stloc (mb, coop_gc_var);
7154 /* call the native method */
7156 mono_mb_emit_byte (mb, CEE_LDARG_0);
7157 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7158 mono_mb_emit_byte (mb, CEE_LDIND_I);
7159 mono_mb_emit_calli (mb, csig);
7160 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7162 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7164 g_assert_not_reached ();
7169 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7170 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7171 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7172 mono_mb_emit_calli (mb, csig);
7174 mono_mb_emit_native_call (mb, csig, func);
7178 /* Set LastError if needed */
7179 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7180 if (!get_last_error_sig) {
7181 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7182 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7183 get_last_error_sig->pinvoke = 1;
7188 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7189 * clobber its value.
7191 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7192 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7194 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7198 if (mono_threads_is_coop_enabled ()) {
7199 mono_mb_emit_ldloc (mb, coop_gc_var);
7200 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7201 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7204 /* convert the result */
7205 if (!sig->ret->byref) {
7206 MonoMarshalSpec *spec = mspecs [0];
7207 type = sig->ret->type;
7209 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7210 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7215 case MONO_TYPE_VOID:
7217 case MONO_TYPE_VALUETYPE:
7218 klass = sig->ret->data.klass;
7219 if (klass->enumtype) {
7220 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7223 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7237 case MONO_TYPE_FNPTR:
7238 case MONO_TYPE_STRING:
7239 case MONO_TYPE_CLASS:
7240 case MONO_TYPE_OBJECT:
7241 case MONO_TYPE_BOOLEAN:
7242 case MONO_TYPE_ARRAY:
7243 case MONO_TYPE_SZARRAY:
7244 case MONO_TYPE_CHAR:
7246 case MONO_TYPE_GENERICINST:
7247 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7249 case MONO_TYPE_TYPEDBYREF:
7251 g_warning ("return type 0x%02x unknown", sig->ret->type);
7252 g_assert_not_reached ();
7256 mono_mb_emit_stloc (mb, 3);
7260 * Need to call this after converting the result since MONO_VTADDR needs
7261 * to be adjacent to the call instruction.
7263 if (check_exceptions)
7264 emit_thread_interrupt_checkpoint (mb);
7266 /* we need to convert byref arguments back and free string arrays */
7267 for (i = 0; i < sig->param_count; i++) {
7268 MonoType *t = sig->params [i];
7269 MonoMarshalSpec *spec = mspecs [i + 1];
7271 argnum = i + param_shift;
7273 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7274 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7279 case MONO_TYPE_STRING:
7280 case MONO_TYPE_VALUETYPE:
7281 case MONO_TYPE_CLASS:
7282 case MONO_TYPE_OBJECT:
7283 case MONO_TYPE_SZARRAY:
7284 case MONO_TYPE_BOOLEAN:
7285 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7292 if (!MONO_TYPE_IS_VOID(sig->ret))
7293 mono_mb_emit_ldloc (mb, 3);
7295 mono_mb_emit_byte (mb, CEE_RET);
7297 #endif /* DISABLE_JIT */
7300 * mono_marshal_get_native_wrapper:
7301 * @method: The MonoMethod to wrap.
7302 * @check_exceptions: Whenever to check for pending exceptions
7304 * generates IL code for the pinvoke wrapper (the generated method
7305 * calls the unmanaged code in piinfo->addr)
7306 * The wrapper info for the wrapper is a WrapperInfo structure.
7309 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7311 MonoMethodSignature *sig, *csig;
7312 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7313 MonoMethodBuilder *mb;
7314 MonoMarshalSpec **mspecs;
7317 gboolean pinvoke = FALSE;
7320 const char *exc_class = "MissingMethodException";
7321 const char *exc_arg = NULL;
7324 g_assert (method != NULL);
7325 g_assert (mono_method_signature (method)->pinvoke);
7327 GHashTable **cache_ptr;
7330 if (check_exceptions)
7331 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7333 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7335 if (check_exceptions)
7336 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7338 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7341 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7343 if ((res = mono_marshal_find_in_cache (cache, method)))
7346 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7347 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7351 return mono_cominterop_get_native_wrapper (method);
7353 g_assert_not_reached ();
7357 sig = mono_method_signature (method);
7359 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7360 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7363 if (!piinfo->addr) {
7365 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7366 exc_arg = "Method contains unsupported native code";
7368 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7370 piinfo->addr = mono_lookup_internal_call (method);
7374 /* hack - redirect certain string constructors to CreateString */
7375 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7376 g_assert (!pinvoke);
7377 g_assert (method->string_ctor);
7378 g_assert (sig->hasthis);
7380 /* CreateString returns a value */
7381 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7382 csig->ret = &mono_defaults.string_class->byval_arg;
7386 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7387 if (!strcmp ("CreateString", res->name) &&
7388 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7391 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7392 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7394 /* create a wrapper to preserve .ctor in stack trace */
7395 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7398 mono_mb_emit_byte (mb, CEE_LDARG_0);
7399 for (i = 1; i <= csig->param_count; i++)
7400 mono_mb_emit_ldarg (mb, i);
7401 mono_mb_emit_managed_call (mb, res, NULL);
7402 mono_mb_emit_byte (mb, CEE_RET);
7405 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7406 info->d.string_ctor.method = method;
7408 /* use native_wrapper_cache because internal calls are looked up there */
7409 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7410 csig->param_count + 1, info, NULL);
7417 /* exception will be thrown */
7418 piinfo->addr = NULL;
7419 g_warning ("cannot find CreateString for .ctor");
7422 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7424 mb->method->save_lmf = 1;
7427 * In AOT mode and embedding scenarios, it is possible that the icall is not
7428 * registered in the runtime doing the AOT compilation.
7430 if (!piinfo->addr && !aot) {
7432 mono_mb_emit_exception (mb, exc_class, exc_arg);
7434 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7435 info->d.managed_to_native.method = method;
7437 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7439 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7440 csig->param_count + 16, info, NULL);
7446 /* internal calls: we simply push all arguments and call the method (no conversions) */
7447 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7449 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7451 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7453 /* hack - string constructors returns a value */
7454 if (method->string_ctor)
7455 csig->ret = &mono_defaults.string_class->byval_arg;
7462 * Add a null check since public icalls can be called with 'call' which
7463 * does no such check.
7465 mono_mb_emit_byte (mb, CEE_LDARG_0);
7466 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7467 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7468 mono_mb_patch_branch (mb, pos);
7470 mono_mb_emit_byte (mb, CEE_LDARG_0);
7473 for (i = 0; i < sig->param_count; i++)
7474 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7477 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7478 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7479 mono_mb_emit_calli (mb, csig);
7481 g_assert (piinfo->addr);
7482 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7484 if (check_exceptions)
7485 emit_thread_interrupt_checkpoint (mb);
7486 mono_mb_emit_byte (mb, CEE_RET);
7488 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7489 info->d.managed_to_native.method = method;
7491 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7493 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7502 g_assert (piinfo->addr);
7505 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7506 mono_method_get_marshal_info (method, mspecs);
7508 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7510 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7511 info->d.managed_to_native.method = method;
7513 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7515 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7520 for (i = sig->param_count; i >= 0; i--)
7522 mono_metadata_free_marshal_spec (mspecs [i]);
7526 /* mono_method_print_code (res); */
7532 * mono_marshal_get_native_func_wrapper:
7533 * @image: The image to use for memory allocation and for looking up custom marshallers.
7534 * @sig: The signature of the function
7535 * @func: The native function to wrap
7537 * Returns a wrapper method around native functions, similar to the pinvoke
7541 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7542 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7544 MonoMethodSignature *csig;
7546 SignaturePointerPair key, *new_key;
7547 MonoMethodBuilder *mb;
7556 // Generic types are not safe to place in MonoImage caches.
7557 g_assert (!sig->is_inflated);
7559 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7560 if ((res = mono_marshal_find_in_cache (cache, &key)))
7563 name = g_strdup_printf ("wrapper_native_%p", func);
7564 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7565 mb->method->save_lmf = 1;
7568 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7571 csig = mono_metadata_signature_dup_full (image, sig);
7574 new_key = g_new (SignaturePointerPair,1);
7575 new_key->sig = csig;
7576 new_key->pointer = func;
7578 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7584 mono_marshal_set_wrapper_info (res, NULL);
7590 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7594 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7596 MonoMethodSignature *sig, *csig;
7597 MonoMethodBuilder *mb;
7602 MonoMethodPInvoke mpiinfo;
7603 MonoMethodPInvoke *piinfo = &mpiinfo;
7604 MonoMarshalSpec **mspecs;
7605 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7606 MonoImage *image = invoke->klass->image;
7609 // FIXME: include UnmanagedFunctionPointerAttribute info
7612 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7614 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7616 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7619 memset (&mpiinfo, 0, sizeof (mpiinfo));
7620 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7622 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7623 mono_method_get_marshal_info (invoke, mspecs);
7624 /* Freed below so don't alloc from mempool */
7625 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7628 name = g_strdup_printf ("wrapper_aot_native");
7629 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7630 mb->method->save_lmf = 1;
7633 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7636 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7637 info->d.managed_to_native.method = invoke;
7639 g_assert (!sig->hasthis);
7640 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7642 res = mono_mb_create_and_cache_full (cache, invoke,
7643 mb, csig, csig->param_count + 16,
7647 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7649 mono_metadata_free_marshal_spec (mspecs [i]);
7657 * mono_marshal_emit_managed_wrapper:
7659 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7660 * the delegate which wraps the managed method to be called. For closed delegates,
7661 * it could have fewer parameters than the method it wraps.
7662 * THIS_LOC is the memory location where the target of the delegate is stored.
7665 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7668 MonoMethodSignature *sig, *csig;
7674 /* we first do all conversions */
7675 for (i = 0; i < sig->param_count; i ++) {
7676 MonoType *t = sig->params [i];
7679 case MONO_TYPE_OBJECT:
7680 case MONO_TYPE_CLASS:
7681 case MONO_TYPE_VALUETYPE:
7682 case MONO_TYPE_ARRAY:
7683 case MONO_TYPE_SZARRAY:
7684 case MONO_TYPE_STRING:
7685 case MONO_TYPE_BOOLEAN:
7686 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7690 if (!sig->ret->byref) {
7691 switch (sig->ret->type) {
7692 case MONO_TYPE_STRING:
7693 csig->ret = &mono_defaults.int_class->byval_arg;
7700 MonoMethodSignature *sig, *csig;
7702 gboolean closed = FALSE;
7703 int coop_gc_var, coop_gc_dummy_local;
7708 /* allocate local 0 (pointer) src_ptr */
7709 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7710 /* allocate local 1 (pointer) dst_ptr */
7711 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7712 /* allocate local 2 (boolean) delete_old */
7713 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7715 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7716 /* Closed delegate */
7717 g_assert (sig->param_count == invoke_sig->param_count + 1);
7719 /* Use a new signature without the first argument */
7720 sig = mono_metadata_signature_dup (sig);
7721 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7722 sig->param_count --;
7725 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7726 /* allocate local 3 to store the return value */
7727 mono_mb_add_local (mb, sig->ret);
7730 if (mono_threads_is_coop_enabled ()) {
7731 /* local 4, the local to be used when calling the reset_blocking funcs */
7732 /* tons of code hardcode 3 to be the return var */
7733 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7734 /* local 5, the local used to get a stack address for suspend funcs */
7735 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7738 mono_mb_emit_icon (mb, 0);
7739 mono_mb_emit_stloc (mb, 2);
7742 * Might need to attach the thread to the JIT or change the
7743 * domain for the callback.
7745 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7746 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7748 if (mono_threads_is_coop_enabled ()) {
7749 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7750 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7751 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7752 mono_mb_emit_stloc (mb, coop_gc_var);
7755 /* we first do all conversions */
7756 tmp_locals = alloca (sizeof (int) * sig->param_count);
7757 for (i = 0; i < sig->param_count; i ++) {
7758 MonoType *t = sig->params [i];
7761 case MONO_TYPE_OBJECT:
7762 case MONO_TYPE_CLASS:
7763 case MONO_TYPE_VALUETYPE:
7764 case MONO_TYPE_ARRAY:
7765 case MONO_TYPE_SZARRAY:
7766 case MONO_TYPE_STRING:
7767 case MONO_TYPE_BOOLEAN:
7768 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7777 emit_thread_interrupt_checkpoint (mb);
7780 if (target_handle) {
7781 mono_mb_emit_icon (mb, (gint32)target_handle);
7782 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7785 g_assert_not_reached ();
7787 } else if (closed) {
7788 mono_mb_emit_icon (mb, (gint32)target_handle);
7789 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7792 for (i = 0; i < sig->param_count; i++) {
7793 MonoType *t = sig->params [i];
7795 if (tmp_locals [i]) {
7797 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7799 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7802 mono_mb_emit_ldarg (mb, i);
7805 mono_mb_emit_managed_call (mb, method, NULL);
7807 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7808 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7809 } else if (!sig->ret->byref) {
7810 switch (sig->ret->type) {
7811 case MONO_TYPE_VOID:
7813 case MONO_TYPE_BOOLEAN:
7816 case MONO_TYPE_CHAR:
7828 case MONO_TYPE_OBJECT:
7829 mono_mb_emit_stloc (mb, 3);
7831 case MONO_TYPE_STRING:
7832 csig->ret = &mono_defaults.int_class->byval_arg;
7833 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7835 case MONO_TYPE_VALUETYPE:
7836 case MONO_TYPE_CLASS:
7837 case MONO_TYPE_SZARRAY:
7838 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7841 g_warning ("return type 0x%02x unknown", sig->ret->type);
7842 g_assert_not_reached ();
7845 mono_mb_emit_stloc (mb, 3);
7848 /* Convert byref arguments back */
7849 for (i = 0; i < sig->param_count; i ++) {
7850 MonoType *t = sig->params [i];
7851 MonoMarshalSpec *spec = mspecs [i + 1];
7853 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7854 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7856 else if (t->byref) {
7858 case MONO_TYPE_CLASS:
7859 case MONO_TYPE_VALUETYPE:
7860 case MONO_TYPE_OBJECT:
7861 case MONO_TYPE_STRING:
7862 case MONO_TYPE_BOOLEAN:
7863 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7869 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7870 /* The [Out] information is encoded in the delegate signature */
7872 case MONO_TYPE_SZARRAY:
7873 case MONO_TYPE_CLASS:
7874 case MONO_TYPE_VALUETYPE:
7875 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7878 g_assert_not_reached ();
7883 if (mono_threads_is_coop_enabled ()) {
7884 /* XXX merge reset_blocking_end with detach */
7885 mono_mb_emit_ldloc (mb, coop_gc_var);
7886 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7887 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7890 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7891 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7893 if (m->retobj_var) {
7894 mono_mb_emit_ldloc (mb, m->retobj_var);
7895 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7896 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7899 if (!MONO_TYPE_IS_VOID(sig->ret))
7900 mono_mb_emit_ldloc (mb, 3);
7901 mono_mb_emit_byte (mb, CEE_RET);
7910 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7912 MonoMethodSignature *sig;
7917 * Under windows, delegates passed to native code must use the STDCALL
7918 * calling convention.
7920 csig->call_convention = MONO_CALL_STDCALL;
7923 sig = mono_method_signature (method);
7925 /* Change default calling convention if needed */
7926 /* Why is this a modopt ? */
7927 if (sig->ret && sig->ret->num_mods) {
7928 for (i = 0; i < sig->ret->num_mods; ++i) {
7930 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7931 g_assert (mono_error_ok (&error));
7932 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7933 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7934 csig->call_convention = MONO_CALL_C;
7935 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7936 csig->call_convention = MONO_CALL_STDCALL;
7937 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7938 csig->call_convention = MONO_CALL_FASTCALL;
7939 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7940 csig->call_convention = MONO_CALL_THISCALL;
7947 * generates IL code to call managed methods from unmanaged code
7948 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7951 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7953 static MonoClass *UnmanagedFunctionPointerAttribute;
7954 MonoMethodSignature *sig, *csig, *invoke_sig;
7955 MonoMethodBuilder *mb;
7956 MonoMethod *res, *invoke;
7957 MonoMarshalSpec **mspecs;
7958 MonoMethodPInvoke piinfo;
7961 EmitMarshalContext m;
7963 g_assert (method != NULL);
7964 g_assert (!mono_method_signature (method)->pinvoke);
7967 * FIXME: Should cache the method+delegate type pair, since the same method
7968 * could be called with different delegates, thus different marshalling
7971 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7973 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7976 invoke = mono_get_delegate_invoke (delegate_klass);
7977 invoke_sig = mono_method_signature (invoke);
7979 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7980 mono_method_get_marshal_info (invoke, mspecs);
7982 sig = mono_method_signature (method);
7984 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7986 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7987 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7989 /* we copy the signature, so that we can modify it */
7991 /* Need to free this later */
7992 csig = mono_metadata_signature_dup (invoke_sig);
7994 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
7998 memset (&m, 0, sizeof (m));
8004 m.image = method->klass->image;
8006 mono_marshal_set_callconv_from_modopt (invoke, csig);
8008 /* Handle the UnmanagedFunctionPointerAttribute */
8009 if (!UnmanagedFunctionPointerAttribute)
8010 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8012 /* The attribute is only available in Net 2.0 */
8013 if (UnmanagedFunctionPointerAttribute) {
8014 MonoCustomAttrInfo *cinfo;
8015 MonoCustomAttrEntry *attr;
8018 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8019 * contents of the attribute without constructing it, as that might not be
8020 * possible when running in cross-compiling mode.
8022 cinfo = mono_custom_attrs_from_class (delegate_klass);
8025 for (i = 0; i < cinfo->num_attrs; ++i) {
8026 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8027 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8028 attr = &cinfo->attrs [i];
8034 MonoArray *typed_args, *named_args;
8035 CattrNamedArg *arginfo;
8039 MonoBoolean set_last_error = 0;
8042 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8043 g_assert (mono_error_ok (&error));
8044 g_assert (mono_array_length (typed_args) == 1);
8047 o = mono_array_get (typed_args, MonoObject*, 0);
8048 call_conv = *(gint32*)mono_object_unbox (o);
8051 for (i = 0; i < mono_array_length (named_args); ++i) {
8052 CattrNamedArg *narg = &arginfo [i];
8054 o = mono_array_get (named_args, MonoObject*, i);
8056 g_assert (narg->field);
8057 if (!strcmp (narg->field->name, "CharSet")) {
8058 charset = *(gint32*)mono_object_unbox (o);
8059 } else if (!strcmp (narg->field->name, "SetLastError")) {
8060 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8061 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8062 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8063 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8064 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8066 g_assert_not_reached ();
8072 memset (&piinfo, 0, sizeof (piinfo));
8074 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8076 csig->call_convention = call_conv - 1;
8079 if (cinfo && !cinfo->cached)
8080 mono_custom_attrs_free (cinfo);
8083 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8085 if (!target_handle) {
8088 // FIXME: Associate it with the method+delegate_klass pair
8089 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8090 info->d.native_to_managed.method = method;
8091 info->d.native_to_managed.klass = delegate_klass;
8093 res = mono_mb_create_and_cache_full (cache, method,
8094 mb, csig, sig->param_count + 16,
8100 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8104 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8106 mono_metadata_free_marshal_spec (mspecs [i]);
8109 /* mono_method_print_code (res); */
8115 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8118 MonoMethodSignature *sig;
8119 MonoMethodBuilder *mb;
8124 method = mono_get_method (image, token, NULL);
8127 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8128 MonoMethodSignature *csig;
8129 MonoMarshalSpec **mspecs;
8130 EmitMarshalContext m;
8132 sig = mono_method_signature (method);
8133 g_assert (!sig->hasthis);
8135 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8136 mono_method_get_marshal_info (method, mspecs);
8138 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8139 csig = mono_metadata_signature_dup_full (image, sig);
8143 memset (&m, 0, sizeof (m));
8151 mono_marshal_set_callconv_from_modopt (method, csig);
8153 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8155 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8160 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8163 for (i = sig->param_count; i >= 0; i--)
8165 mono_metadata_free_marshal_spec (mspecs [i]);
8168 return mono_compile_method (method);
8171 sig = mono_method_signature (method);
8172 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8174 param_count = sig->param_count + sig->hasthis;
8176 for (i = 0; i < param_count; i++)
8177 mono_mb_emit_ldarg (mb, i);
8179 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8180 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8182 mono_mb_emit_op (mb, CEE_CALL, method);
8183 mono_mb_emit_byte (mb, CEE_RET);
8188 method = mono_mb_create (mb, sig, param_count, NULL);
8191 return mono_compile_method (method);
8197 * The code directly following this is the cache hit, value positive branch
8199 * This function takes a new method builder with 0 locals and adds two locals
8200 * to create multiple out-branches and the fall through state of having the object
8201 * on the stack after a cache miss
8204 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8205 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8206 MonoMethodBuilder *mb)
8210 /* allocate local 0 (pointer) obj_vtable */
8211 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8212 /* allocate local 1 (pointer) cached_vtable */
8213 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8216 mono_mb_emit_ldarg (mb, obj_arg_position);
8217 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8219 /*obj_vtable = obj->vtable;*/
8220 mono_mb_emit_ldarg (mb, obj_arg_position);
8221 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8222 mono_mb_emit_byte (mb, CEE_LDIND_I);
8223 mono_mb_emit_stloc (mb, 0);
8225 /* cached_vtable = *cache*/
8226 mono_mb_emit_ldarg (mb, cache_arg_position);
8227 mono_mb_emit_byte (mb, CEE_LDIND_I);
8228 mono_mb_emit_stloc (mb, 1);
8230 mono_mb_emit_ldloc (mb, 1);
8231 mono_mb_emit_byte (mb, CEE_LDC_I4);
8232 mono_mb_emit_i4 (mb, ~0x1);
8233 mono_mb_emit_byte (mb, CEE_CONV_I);
8234 mono_mb_emit_byte (mb, CEE_AND);
8235 mono_mb_emit_ldloc (mb, 0);
8236 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8237 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8239 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8240 mono_mb_emit_ldloc (mb, 1);
8241 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8242 mono_mb_emit_byte (mb, CEE_CONV_U);
8243 mono_mb_emit_byte (mb, CEE_AND);
8244 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8245 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8248 mono_mb_patch_branch (mb, cache_miss_pos);
8251 mono_mb_emit_ldarg (mb, obj_arg_position);
8252 mono_mb_emit_ldarg (mb, class_arg_position);
8253 mono_mb_emit_ldarg (mb, cache_arg_position);
8254 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8257 #endif /* DISABLE_JIT */
8260 * This does the equivalent of mono_object_castclass_with_cache.
8261 * The wrapper info for the wrapper is a WrapperInfo structure.
8264 mono_marshal_get_castclass_with_cache (void)
8266 static MonoMethod *cached;
8268 MonoMethodBuilder *mb;
8269 MonoMethodSignature *sig;
8270 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8273 const int obj_arg_position = 0;
8274 const int class_arg_position = 1;
8275 const int cache_arg_position = 2;
8280 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8281 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8282 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8283 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8284 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8285 sig->ret = &mono_defaults.object_class->byval_arg;
8289 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8290 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8291 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8294 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8295 mono_mb_emit_ldarg (mb, obj_arg_position);
8296 mono_mb_emit_byte (mb, CEE_RET);
8299 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8300 mono_mb_patch_branch (mb, invalid_cast_pos);
8301 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8304 mono_mb_patch_branch (mb, return_null_pos);
8305 mono_mb_emit_byte (mb, CEE_LDNULL);
8306 mono_mb_emit_byte (mb, CEE_RET);
8307 #endif /* DISABLE_JIT */
8309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8310 res = mono_mb_create (mb, sig, 8, info);
8313 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8314 mono_free_method (res);
8315 mono_metadata_free_method_signature (sig);
8323 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8325 MonoObject *isinst = mono_object_isinst (obj, klass);
8327 #ifndef DISABLE_REMOTING
8328 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8332 uintptr_t cache_update = (uintptr_t)obj->vtable;
8334 cache_update = cache_update | 0x1;
8336 *cache = cache_update;
8342 * This does the equivalent of mono_object_isinst_with_cache.
8343 * The wrapper info for the wrapper is a WrapperInfo structure.
8346 mono_marshal_get_isinst_with_cache (void)
8348 static MonoMethod *cached;
8350 MonoMethodBuilder *mb;
8351 MonoMethodSignature *sig;
8352 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8355 const int obj_arg_position = 0;
8356 const int class_arg_position = 1;
8357 const int cache_arg_position = 2;
8362 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8363 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8365 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8367 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8369 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8370 sig->ret = &mono_defaults.object_class->byval_arg;
8374 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8375 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8376 // Return the object gotten via the slow path.
8377 mono_mb_emit_byte (mb, CEE_RET);
8380 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8381 mono_mb_patch_branch (mb, return_null_pos);
8382 mono_mb_emit_byte (mb, CEE_LDNULL);
8383 mono_mb_emit_byte (mb, CEE_RET);
8386 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8387 mono_mb_emit_ldarg (mb, 0);
8388 mono_mb_emit_byte (mb, CEE_RET);
8391 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8392 res = mono_mb_create (mb, sig, 8, info);
8395 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8396 mono_free_method (res);
8397 mono_metadata_free_method_signature (sig);
8405 * mono_marshal_get_isinst:
8406 * @klass: the type of the field
8408 * This method generates a function which can be used to check if an object is
8409 * an instance of the given type, icluding the case where the object is a proxy.
8410 * The generated function has the following signature:
8411 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8414 mono_marshal_get_isinst (MonoClass *klass)
8416 static MonoMethodSignature *isint_sig = NULL;
8420 int pos_was_ok, pos_end;
8421 #ifndef DISABLE_REMOTING
8422 int pos_end2, pos_failed;
8425 MonoMethodBuilder *mb;
8427 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8428 if ((res = mono_marshal_find_in_cache (cache, klass)))
8432 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8433 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8434 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8435 isint_sig->pinvoke = 0;
8438 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8439 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8442 mb->method->save_lmf = 1;
8445 /* check if the object is a proxy that needs special cast */
8446 mono_mb_emit_ldarg (mb, 0);
8447 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8448 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8450 /* The result of MONO_CISINST can be:
8451 0) the type check succeeded
8452 1) the type check did not succeed
8453 2) a CanCastTo call is needed */
8454 #ifndef DISABLE_REMOTING
8455 mono_mb_emit_byte (mb, CEE_DUP);
8456 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8458 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8459 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8461 /* get the real proxy from the transparent proxy*/
8463 mono_mb_emit_ldarg (mb, 0);
8464 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8465 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8469 mono_mb_patch_branch (mb, pos_failed);
8470 mono_mb_emit_byte (mb, CEE_LDNULL);
8471 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8475 mono_mb_patch_branch (mb, pos_was_ok);
8476 mono_mb_emit_byte (mb, CEE_POP);
8477 mono_mb_emit_ldarg (mb, 0);
8481 mono_mb_patch_branch (mb, pos_end);
8482 mono_mb_patch_branch (mb, pos_end2);
8483 mono_mb_emit_byte (mb, CEE_RET);
8485 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8489 mono_mb_emit_byte (mb, CEE_LDNULL);
8490 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8494 mono_mb_patch_branch (mb, pos_was_ok);
8495 mono_mb_emit_ldarg (mb, 0);
8499 mono_mb_patch_branch (mb, pos_end);
8500 mono_mb_emit_byte (mb, CEE_RET);
8501 #endif /* DISABLE_REMOTING */
8502 #endif /* DISABLE_JIT */
8504 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8505 info->d.proxy.klass = klass;
8506 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8513 * mono_marshal_get_castclass:
8514 * @klass: the type of the field
8516 * This method generates a function which can be used to cast an object to
8517 * an instance of the given type, icluding the case where the object is a proxy.
8518 * The generated function has the following signature:
8519 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8520 * The wrapper info for the wrapper is a WrapperInfo structure.
8523 mono_marshal_get_castclass (MonoClass *klass)
8525 static MonoMethodSignature *castclass_sig = NULL;
8528 #ifndef DISABLE_REMOTING
8529 int pos_was_ok, pos_was_ok2;
8532 MonoMethodBuilder *mb;
8535 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8536 if ((res = mono_marshal_find_in_cache (cache, klass)))
8539 if (!castclass_sig) {
8540 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8541 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8542 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8543 castclass_sig->pinvoke = 0;
8546 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8547 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8550 mb->method->save_lmf = 1;
8553 /* check if the object is a proxy that needs special cast */
8554 mono_mb_emit_ldarg (mb, 0);
8555 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8556 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8558 /* The result of MONO_CCASTCLASS can be:
8559 0) the cast is valid
8560 1) cast of unknown proxy type
8561 or an exception if the cast is is invalid
8563 #ifndef DISABLE_REMOTING
8564 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8566 /* get the real proxy from the transparent proxy*/
8568 mono_mb_emit_ldarg (mb, 0);
8569 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8570 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8573 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8576 mono_mb_patch_branch (mb, pos_was_ok);
8577 mono_mb_patch_branch (mb, pos_was_ok2);
8579 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8580 mono_mb_emit_byte (mb, CEE_POP);
8581 #endif /* DISABLE_REMOTING */
8583 mono_mb_emit_ldarg (mb, 0);
8586 mono_mb_emit_byte (mb, CEE_RET);
8587 #endif /* DISABLE_JIT */
8589 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8591 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8599 * mono_marshal_get_struct_to_ptr:
8602 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8603 * The wrapper info for the wrapper is a WrapperInfo structure.
8606 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8608 MonoMethodBuilder *mb;
8609 static MonoMethod *stoptr = NULL;
8613 g_assert (klass != NULL);
8615 mono_marshal_load_type_info (klass);
8617 if (klass->marshal_info->str_to_ptr)
8618 return klass->marshal_info->str_to_ptr;
8621 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8624 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8627 if (klass->blittable) {
8628 mono_mb_emit_byte (mb, CEE_LDARG_1);
8629 mono_mb_emit_byte (mb, CEE_LDARG_0);
8630 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8631 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8632 mono_mb_emit_byte (mb, CEE_PREFIX1);
8633 mono_mb_emit_byte (mb, CEE_CPBLK);
8636 /* allocate local 0 (pointer) src_ptr */
8637 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8638 /* allocate local 1 (pointer) dst_ptr */
8639 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8640 /* allocate local 2 (boolean) delete_old */
8641 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8642 mono_mb_emit_byte (mb, CEE_LDARG_2);
8643 mono_mb_emit_stloc (mb, 2);
8645 /* initialize src_ptr to point to the start of object data */
8646 mono_mb_emit_byte (mb, CEE_LDARG_0);
8647 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8648 mono_mb_emit_stloc (mb, 0);
8650 /* initialize dst_ptr */
8651 mono_mb_emit_byte (mb, CEE_LDARG_1);
8652 mono_mb_emit_stloc (mb, 1);
8654 emit_struct_conv (mb, klass, FALSE);
8657 mono_mb_emit_byte (mb, CEE_RET);
8659 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8660 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8663 klass->marshal_info->str_to_ptr = res;
8668 * mono_marshal_get_ptr_to_struct:
8671 * generates IL code for PtrToStructure (IntPtr src, object structure)
8672 * The wrapper info for the wrapper is a WrapperInfo structure.
8675 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8677 MonoMethodBuilder *mb;
8678 static MonoMethodSignature *ptostr = NULL;
8682 g_assert (klass != NULL);
8684 mono_marshal_load_type_info (klass);
8686 if (klass->marshal_info->ptr_to_str)
8687 return klass->marshal_info->ptr_to_str;
8690 MonoMethodSignature *sig;
8692 /* Create the signature corresponding to
8693 static void PtrToStructure (IntPtr ptr, object structure);
8694 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8695 sig = mono_create_icall_signature ("void ptr object");
8696 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8698 mono_memory_barrier ();
8702 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8705 if (klass->blittable) {
8706 mono_mb_emit_byte (mb, CEE_LDARG_1);
8707 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8708 mono_mb_emit_byte (mb, CEE_LDARG_0);
8709 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8710 mono_mb_emit_byte (mb, CEE_PREFIX1);
8711 mono_mb_emit_byte (mb, CEE_CPBLK);
8714 /* allocate local 0 (pointer) src_ptr */
8715 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8716 /* allocate local 1 (pointer) dst_ptr */
8717 mono_mb_add_local (mb, &klass->this_arg);
8719 /* initialize src_ptr to point to the start of object data */
8720 mono_mb_emit_byte (mb, CEE_LDARG_0);
8721 mono_mb_emit_stloc (mb, 0);
8723 /* initialize dst_ptr */
8724 mono_mb_emit_byte (mb, CEE_LDARG_1);
8725 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8726 mono_mb_emit_stloc (mb, 1);
8728 emit_struct_conv (mb, klass, TRUE);
8731 mono_mb_emit_byte (mb, CEE_RET);
8733 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8734 res = mono_mb_create (mb, ptostr, 0, info);
8737 klass->marshal_info->ptr_to_str = res;
8742 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8743 * This is used to avoid infinite recursion since it is hard to determine where to
8744 * replace a method with its synchronized wrapper, and where not.
8745 * The runtime should execute METHOD instead of the wrapper.
8746 * The wrapper info for the wrapper is a WrapperInfo structure.
8749 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8751 MonoMethodBuilder *mb;
8753 MonoMethodSignature *sig;
8755 MonoGenericContext *ctx = NULL;
8756 MonoGenericContainer *container = NULL;
8758 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8759 ctx = &((MonoMethodInflated*)method)->context;
8760 method = ((MonoMethodInflated*)method)->declaring;
8761 container = mono_method_get_generic_container (method);
8763 container = method->klass->generic_container;
8764 g_assert (container);
8767 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8769 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8770 mono_mb_emit_byte (mb, CEE_RET);
8772 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8775 info->d.synchronized_inner.method = method;
8776 res = mono_mb_create (mb, sig, 0, info);
8780 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8781 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8787 * generates IL code for the synchronized wrapper: the generated method
8788 * calls METHOD while locking 'this' or the parent type.
8791 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8793 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8794 MonoMethodSignature *sig;
8795 MonoExceptionClause *clause;
8796 MonoMethodBuilder *mb;
8800 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8801 MonoGenericContext *ctx = NULL;
8802 MonoMethod *orig_method = NULL;
8803 MonoGenericContainer *container = NULL;
8807 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8810 /* FIXME: Support generic methods too */
8811 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8812 orig_method = method;
8813 ctx = &((MonoMethodInflated*)method)->context;
8814 method = ((MonoMethodInflated*)method)->declaring;
8815 container = mono_method_get_generic_container (method);
8817 container = method->klass->generic_container;
8818 g_assert (container);
8825 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8826 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8830 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8831 if ((res = mono_marshal_find_in_cache (cache, method)))
8835 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8838 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8840 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8841 info->d.synchronized.method = method;
8844 mb->skip_visibility = 1;
8846 if (!MONO_TYPE_IS_VOID (sig->ret))
8847 ret_local = mono_mb_add_local (mb, sig->ret);
8850 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8851 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8853 /* This will throw the type load exception when the wrapper is compiled */
8854 mono_mb_emit_byte (mb, CEE_LDNULL);
8855 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8856 mono_mb_emit_byte (mb, CEE_POP);
8858 if (!MONO_TYPE_IS_VOID (sig->ret))
8859 mono_mb_emit_ldloc (mb, ret_local);
8860 mono_mb_emit_byte (mb, CEE_RET);
8863 res = mono_mb_create_and_cache_full (cache, method,
8864 mb, sig, sig->param_count + 16, info, NULL);
8872 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8873 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8875 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8876 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8879 mono_marshal_lock ();
8881 if (!enter_method) {
8882 MonoMethodDesc *desc;
8884 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8885 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8886 g_assert (enter_method);
8887 mono_method_desc_free (desc);
8889 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8890 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8891 g_assert (exit_method);
8892 mono_method_desc_free (desc);
8894 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8895 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8896 g_assert (gettypefromhandle_method);
8897 mono_method_desc_free (desc);
8900 mono_marshal_unlock ();
8903 /* Push this or the type object */
8904 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8905 /* We have special handling for this in the JIT */
8906 int index = mono_mb_add_data (mb, method->klass);
8907 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8908 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8909 mono_mb_emit_i4 (mb, index);
8911 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8914 mono_mb_emit_ldarg (mb, 0);
8915 mono_mb_emit_stloc (mb, this_local);
8917 /* Call Monitor::Enter() */
8918 mono_mb_emit_ldloc (mb, this_local);
8919 mono_mb_emit_ldloc_addr (mb, taken_local);
8920 mono_mb_emit_managed_call (mb, enter_method, NULL);
8922 clause->try_offset = mono_mb_get_label (mb);
8924 /* Call the method */
8926 mono_mb_emit_ldarg (mb, 0);
8927 for (i = 0; i < sig->param_count; i++)
8928 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8932 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8933 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8935 mono_mb_emit_managed_call (mb, method, NULL);
8938 if (!MONO_TYPE_IS_VOID (sig->ret))
8939 mono_mb_emit_stloc (mb, ret_local);
8941 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8943 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8944 clause->handler_offset = mono_mb_get_label (mb);
8946 /* Call Monitor::Exit() if needed */
8947 mono_mb_emit_ldloc (mb, taken_local);
8948 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8949 mono_mb_emit_ldloc (mb, this_local);
8950 mono_mb_emit_managed_call (mb, exit_method, NULL);
8951 mono_mb_patch_branch (mb, pos2);
8952 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8954 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8956 mono_mb_patch_branch (mb, pos);
8957 if (!MONO_TYPE_IS_VOID (sig->ret))
8958 mono_mb_emit_ldloc (mb, ret_local);
8959 mono_mb_emit_byte (mb, CEE_RET);
8961 mono_mb_set_clauses (mb, 1, clause);
8966 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
8967 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8969 res = mono_mb_create_and_cache_full (cache, method,
8970 mb, sig, sig->param_count + 16, info, NULL);
8979 * the returned method calls 'method' unboxing the this argument
8982 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8984 MonoMethodSignature *sig = mono_method_signature (method);
8986 MonoMethodBuilder *mb;
8991 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8993 if ((res = mono_marshal_find_in_cache (cache, method)))
8996 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8998 g_assert (sig->hasthis);
9001 mono_mb_emit_ldarg (mb, 0);
9002 mono_mb_emit_icon (mb, sizeof (MonoObject));
9003 mono_mb_emit_byte (mb, CEE_ADD);
9004 for (i = 0; i < sig->param_count; ++i)
9005 mono_mb_emit_ldarg (mb, i + 1);
9006 mono_mb_emit_managed_call (mb, method, NULL);
9007 mono_mb_emit_byte (mb, CEE_RET);
9010 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9011 info->d.unbox.method = method;
9013 res = mono_mb_create_and_cache_full (cache, method,
9014 mb, sig, sig->param_count + 16, info, NULL);
9017 /* mono_method_print_code (res); */
9023 STELEMREF_OBJECT, /*no check at all*/
9024 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9025 STELEMREF_CLASS, /*only the klass->parents check*/
9026 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9027 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9028 STELEMREF_KIND_COUNT
9031 static const char *strelemref_wrapper_name[] = {
9032 "object", "sealed_class", "class", "interface", "complex"
9036 is_monomorphic_array (MonoClass *klass)
9038 MonoClass *element_class;
9039 if (klass->rank != 1)
9042 element_class = klass->element_class;
9043 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9047 get_virtual_stelemref_kind (MonoClass *element_class)
9049 if (element_class == mono_defaults.object_class)
9050 return STELEMREF_OBJECT;
9051 if (is_monomorphic_array (element_class))
9052 return STELEMREF_SEALED_CLASS;
9053 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9054 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9055 #ifdef COMPRESSED_INTERFACE_BITMAP
9056 return STELEMREF_COMPLEX;
9058 return STELEMREF_INTERFACE;
9060 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9061 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9062 return STELEMREF_COMPLEX;
9063 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9064 return STELEMREF_SEALED_CLASS;
9065 return STELEMREF_CLASS;
9071 load_array_element_address (MonoMethodBuilder *mb)
9073 mono_mb_emit_ldarg (mb, 0);
9074 mono_mb_emit_ldarg (mb, 1);
9075 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9079 load_array_class (MonoMethodBuilder *mb, int aklass)
9081 mono_mb_emit_ldarg (mb, 0);
9082 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9083 mono_mb_emit_byte (mb, CEE_LDIND_I);
9084 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9085 mono_mb_emit_byte (mb, CEE_LDIND_I);
9086 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9087 mono_mb_emit_byte (mb, CEE_LDIND_I);
9088 mono_mb_emit_stloc (mb, aklass);
9092 load_value_class (MonoMethodBuilder *mb, int vklass)
9094 mono_mb_emit_ldarg (mb, 2);
9095 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9096 mono_mb_emit_byte (mb, CEE_LDIND_I);
9097 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9098 mono_mb_emit_byte (mb, CEE_LDIND_I);
9099 mono_mb_emit_stloc (mb, vklass);
9105 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9107 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9108 printf ("slow vstore of %s\n", name);
9114 * The wrapper info for the wrapper is a WrapperInfo structure.
9117 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9118 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9119 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9120 * - Add a case for arrays of arrays.
9123 get_virtual_stelemref_wrapper (int kind)
9125 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9126 static MonoMethodSignature *signature;
9127 MonoMethodBuilder *mb;
9130 const char *param_names [16];
9132 int aklass, vklass, vtable, uiid;
9133 int array_slot_addr;
9136 if (cached_methods [kind])
9137 return cached_methods [kind];
9139 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9140 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9144 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9146 /* void this::stelemref (size_t idx, void* value) */
9147 sig->ret = &mono_defaults.void_class->byval_arg;
9148 sig->hasthis = TRUE;
9149 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9150 sig->params [1] = &mono_defaults.object_class->byval_arg;
9155 param_names [0] = "index";
9156 param_names [1] = "value";
9157 mono_mb_set_param_names (mb, param_names);
9159 /*For now simply call plain old stelemref*/
9161 case STELEMREF_OBJECT:
9162 /* ldelema (implicit bound check) */
9163 load_array_element_address (mb);
9165 mono_mb_emit_ldarg (mb, 2);
9166 mono_mb_emit_byte (mb, CEE_STIND_REF);
9167 mono_mb_emit_byte (mb, CEE_RET);
9170 case STELEMREF_COMPLEX:
9172 <ldelema (bound check)>
9175 if (!mono_object_isinst (value, aklass))
9179 *array_slot_addr = value;
9182 throw new ArrayTypeMismatchException ();
9185 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9186 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9190 /*Use this to debug/record stores that are going thru the slow path*/
9191 MonoMethodSignature *csig;
9192 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9193 csig->ret = &mono_defaults.void_class->byval_arg;
9194 csig->params [0] = &mono_defaults.object_class->byval_arg;
9195 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9196 csig->params [2] = &mono_defaults.object_class->byval_arg;
9197 mono_mb_emit_ldarg (mb, 0);
9198 mono_mb_emit_ldarg (mb, 1);
9199 mono_mb_emit_ldarg (mb, 2);
9200 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9204 /* ldelema (implicit bound check) */
9205 load_array_element_address (mb);
9206 mono_mb_emit_stloc (mb, array_slot_addr);
9208 /* if (!value) goto do_store */
9209 mono_mb_emit_ldarg (mb, 2);
9210 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9212 /* aklass = array->vtable->klass->element_class */
9213 load_array_class (mb, aklass);
9215 /*if (mono_object_isinst (value, aklass)) */
9216 mono_mb_emit_ldarg (mb, 2);
9217 mono_mb_emit_ldloc (mb, aklass);
9218 mono_mb_emit_icall (mb, mono_object_isinst);
9219 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9222 mono_mb_patch_branch (mb, b1);
9223 mono_mb_emit_ldloc (mb, array_slot_addr);
9224 mono_mb_emit_ldarg (mb, 2);
9225 mono_mb_emit_byte (mb, CEE_STIND_REF);
9226 mono_mb_emit_byte (mb, CEE_RET);
9229 mono_mb_patch_branch (mb, b2);
9231 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9234 case STELEMREF_SEALED_CLASS:
9236 <ldelema (bound check)>
9240 aklass = array->vtable->klass->element_class;
9241 vklass = value->vtable->klass;
9243 if (vklass != aklass)
9247 *array_slot_addr = value;
9250 throw new ArrayTypeMismatchException ();
9252 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9253 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9254 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9257 /* ldelema (implicit bound check) */
9258 load_array_element_address (mb);
9259 mono_mb_emit_stloc (mb, array_slot_addr);
9261 /* if (!value) goto do_store */
9262 mono_mb_emit_ldarg (mb, 2);
9263 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9265 /* aklass = array->vtable->klass->element_class */
9266 load_array_class (mb, aklass);
9268 /* vklass = value->vtable->klass */
9269 load_value_class (mb, vklass);
9271 /*if (vklass != aklass) goto do_exception; */
9272 mono_mb_emit_ldloc (mb, aklass);
9273 mono_mb_emit_ldloc (mb, vklass);
9274 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9277 mono_mb_patch_branch (mb, b1);
9278 mono_mb_emit_ldloc (mb, array_slot_addr);
9279 mono_mb_emit_ldarg (mb, 2);
9280 mono_mb_emit_byte (mb, CEE_STIND_REF);
9281 mono_mb_emit_byte (mb, CEE_RET);
9284 mono_mb_patch_branch (mb, b2);
9285 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9288 case STELEMREF_CLASS:
9291 <ldelema (bound check)>
9295 aklass = array->vtable->klass->element_class;
9296 vklass = value->vtable->klass;
9298 if (vklass->idepth < aklass->idepth)
9301 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9305 *array_slot_addr = value;
9309 throw new ArrayTypeMismatchException ();
9311 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9312 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9313 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9315 /* ldelema (implicit bound check) */
9316 load_array_element_address (mb);
9317 mono_mb_emit_stloc (mb, array_slot_addr);
9319 /* if (!value) goto do_store */
9320 mono_mb_emit_ldarg (mb, 2);
9321 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9323 /* aklass = array->vtable->klass->element_class */
9324 load_array_class (mb, aklass);
9326 /* vklass = value->vtable->klass */
9327 load_value_class (mb, vklass);
9329 /*if (mono_object_isinst (value, aklass)) */
9330 mono_mb_emit_ldarg (mb, 2);
9331 mono_mb_emit_ldloc (mb, aklass);
9332 mono_mb_emit_icall (mb, mono_object_isinst);
9333 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9335 /* if (vklass->idepth < aklass->idepth) goto failue */
9336 mono_mb_emit_ldloc (mb, vklass);
9337 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9338 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9340 mono_mb_emit_ldloc (mb, aklass);
9341 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9342 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9344 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9346 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9347 mono_mb_emit_ldloc (mb, vklass);
9348 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9349 mono_mb_emit_byte (mb, CEE_LDIND_I);
9351 mono_mb_emit_ldloc (mb, aklass);
9352 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9353 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9354 mono_mb_emit_icon (mb, 1);
9355 mono_mb_emit_byte (mb, CEE_SUB);
9356 mono_mb_emit_icon (mb, sizeof (void*));
9357 mono_mb_emit_byte (mb, CEE_MUL);
9358 mono_mb_emit_byte (mb, CEE_ADD);
9359 mono_mb_emit_byte (mb, CEE_LDIND_I);
9361 mono_mb_emit_ldloc (mb, aklass);
9362 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9365 mono_mb_patch_branch (mb, b1);
9366 mono_mb_emit_ldloc (mb, array_slot_addr);
9367 mono_mb_emit_ldarg (mb, 2);
9368 mono_mb_emit_byte (mb, CEE_STIND_REF);
9369 mono_mb_emit_byte (mb, CEE_RET);
9372 mono_mb_patch_branch (mb, b2);
9373 mono_mb_patch_branch (mb, b3);
9375 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9378 case STELEMREF_INTERFACE:
9385 klass = array->obj.vtable->klass->element_class;
9387 uiid = klass->interface_id;
9388 if (uiid > vt->max_interface_id)
9390 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9393 mono_array_setref (array, index, value);
9396 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9398 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9399 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9400 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9401 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9403 /* ldelema (implicit bound check) */
9404 load_array_element_address (mb);
9405 mono_mb_emit_stloc (mb, array_slot_addr);
9407 /* if (!value) goto do_store */
9408 mono_mb_emit_ldarg (mb, 2);
9409 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9411 /* klass = array->vtable->klass->element_class */
9412 load_array_class (mb, aklass);
9414 /* vt = value->vtable */
9415 mono_mb_emit_ldarg (mb, 2);
9416 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9417 mono_mb_emit_byte (mb, CEE_LDIND_I);
9418 mono_mb_emit_stloc (mb, vtable);
9420 /* uiid = klass->interface_id; */
9421 mono_mb_emit_ldloc (mb, aklass);
9422 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9423 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9424 mono_mb_emit_stloc (mb, uiid);
9426 /*if (uiid > vt->max_interface_id)*/
9427 mono_mb_emit_ldloc (mb, uiid);
9428 mono_mb_emit_ldloc (mb, vtable);
9429 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9430 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9431 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9433 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9435 /*vt->interface_bitmap*/
9436 mono_mb_emit_ldloc (mb, vtable);
9437 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9438 mono_mb_emit_byte (mb, CEE_LDIND_I);
9441 mono_mb_emit_ldloc (mb, uiid);
9442 mono_mb_emit_icon (mb, 3);
9443 mono_mb_emit_byte (mb, CEE_SHR_UN);
9445 /*vt->interface_bitmap [(uiid) >> 3]*/
9446 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9447 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9449 /*(1 << ((uiid)&7)))*/
9450 mono_mb_emit_icon (mb, 1);
9451 mono_mb_emit_ldloc (mb, uiid);
9452 mono_mb_emit_icon (mb, 7);
9453 mono_mb_emit_byte (mb, CEE_AND);
9454 mono_mb_emit_byte (mb, CEE_SHL);
9456 /*bitwise and the whole thing*/
9457 mono_mb_emit_byte (mb, CEE_AND);
9458 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9461 mono_mb_patch_branch (mb, b1);
9462 mono_mb_emit_ldloc (mb, array_slot_addr);
9463 mono_mb_emit_ldarg (mb, 2);
9464 mono_mb_emit_byte (mb, CEE_STIND_REF);
9465 mono_mb_emit_byte (mb, CEE_RET);
9468 mono_mb_patch_branch (mb, b2);
9469 mono_mb_patch_branch (mb, b3);
9470 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9474 mono_mb_emit_ldarg (mb, 0);
9475 mono_mb_emit_ldarg (mb, 1);
9476 mono_mb_emit_ldarg (mb, 2);
9477 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9478 mono_mb_emit_byte (mb, CEE_RET);
9481 #endif /* DISABLE_JIT */
9482 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9483 info->d.virtual_stelemref.kind = kind;
9484 res = mono_mb_create (mb, signature, 4, info);
9485 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9487 mono_marshal_lock ();
9488 if (!cached_methods [kind]) {
9489 cached_methods [kind] = res;
9490 mono_marshal_unlock ();
9492 mono_marshal_unlock ();
9493 mono_free_method (res);
9497 return cached_methods [kind];
9501 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9505 g_assert (array_class->rank == 1);
9506 kind = get_virtual_stelemref_kind (array_class->element_class);
9508 return get_virtual_stelemref_wrapper (kind);
9512 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9517 *nwrappers = STELEMREF_KIND_COUNT;
9518 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9519 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9520 res [i] = get_virtual_stelemref_wrapper (i);
9525 * The wrapper info for the wrapper is a WrapperInfo structure.
9528 mono_marshal_get_stelemref (void)
9530 static MonoMethod* ret = NULL;
9531 MonoMethodSignature *sig;
9532 MonoMethodBuilder *mb;
9535 guint32 b1, b2, b3, b4;
9538 int array_slot_addr;
9543 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9546 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9548 /* void stelemref (void* array, int idx, void* value) */
9549 sig->ret = &mono_defaults.void_class->byval_arg;
9550 sig->params [0] = &mono_defaults.object_class->byval_arg;
9551 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9552 sig->params [2] = &mono_defaults.object_class->byval_arg;
9555 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9556 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9557 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9561 <ldelema (bound check)>
9565 aklass = array->vtable->klass->element_class;
9566 vklass = value->vtable->klass;
9568 if (vklass->idepth < aklass->idepth)
9571 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9575 *array_slot_addr = value;
9579 if (mono_object_isinst (value, aklass))
9582 throw new ArrayTypeMismatchException ();
9585 /* ldelema (implicit bound check) */
9586 mono_mb_emit_ldarg (mb, 0);
9587 mono_mb_emit_ldarg (mb, 1);
9588 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9589 mono_mb_emit_stloc (mb, array_slot_addr);
9591 /* if (!value) goto do_store */
9592 mono_mb_emit_ldarg (mb, 2);
9593 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9595 /* aklass = array->vtable->klass->element_class */
9596 mono_mb_emit_ldarg (mb, 0);
9597 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9598 mono_mb_emit_byte (mb, CEE_LDIND_I);
9599 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9600 mono_mb_emit_byte (mb, CEE_LDIND_I);
9601 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9602 mono_mb_emit_byte (mb, CEE_LDIND_I);
9603 mono_mb_emit_stloc (mb, aklass);
9605 /* vklass = value->vtable->klass */
9606 mono_mb_emit_ldarg (mb, 2);
9607 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9608 mono_mb_emit_byte (mb, CEE_LDIND_I);
9609 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9610 mono_mb_emit_byte (mb, CEE_LDIND_I);
9611 mono_mb_emit_stloc (mb, vklass);
9613 /* if (vklass->idepth < aklass->idepth) goto failue */
9614 mono_mb_emit_ldloc (mb, vklass);
9615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9616 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9618 mono_mb_emit_ldloc (mb, aklass);
9619 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9620 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9622 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9624 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9625 mono_mb_emit_ldloc (mb, vklass);
9626 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9627 mono_mb_emit_byte (mb, CEE_LDIND_I);
9629 mono_mb_emit_ldloc (mb, aklass);
9630 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9631 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9632 mono_mb_emit_icon (mb, 1);
9633 mono_mb_emit_byte (mb, CEE_SUB);
9634 mono_mb_emit_icon (mb, sizeof (void*));
9635 mono_mb_emit_byte (mb, CEE_MUL);
9636 mono_mb_emit_byte (mb, CEE_ADD);
9637 mono_mb_emit_byte (mb, CEE_LDIND_I);
9639 mono_mb_emit_ldloc (mb, aklass);
9641 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9643 copy_pos = mono_mb_get_label (mb);
9645 mono_mb_patch_branch (mb, b1);
9646 mono_mb_emit_ldloc (mb, array_slot_addr);
9647 mono_mb_emit_ldarg (mb, 2);
9648 mono_mb_emit_byte (mb, CEE_STIND_REF);
9650 mono_mb_emit_byte (mb, CEE_RET);
9653 mono_mb_patch_branch (mb, b2);
9654 mono_mb_patch_branch (mb, b3);
9656 mono_mb_emit_ldarg (mb, 2);
9657 mono_mb_emit_ldloc (mb, aklass);
9658 mono_mb_emit_icall (mb, mono_object_isinst);
9660 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9661 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9662 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9664 mono_mb_emit_byte (mb, CEE_RET);
9666 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9667 ret = mono_mb_create (mb, sig, 4, info);
9674 * mono_marshal_get_gsharedvt_in_wrapper:
9676 * This wrapper handles calls from normal code to gsharedvt code.
9678 * The wrapper info for the wrapper is a WrapperInfo structure.
9681 mono_marshal_get_gsharedvt_in_wrapper (void)
9683 static MonoMethod* ret = NULL;
9684 MonoMethodSignature *sig;
9685 MonoMethodBuilder *mb;
9691 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9693 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9694 sig->ret = &mono_defaults.void_class->byval_arg;
9698 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9700 mono_mb_emit_byte (mb, CEE_RET);
9702 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9703 ret = mono_mb_create (mb, sig, 4, info);
9710 * mono_marshal_get_gsharedvt_out_wrapper:
9712 * This wrapper handles calls from gsharedvt code to normal code.
9714 * The wrapper info for the wrapper is a WrapperInfo structure.
9717 mono_marshal_get_gsharedvt_out_wrapper (void)
9719 static MonoMethod* ret = NULL;
9720 MonoMethodSignature *sig;
9721 MonoMethodBuilder *mb;
9727 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9729 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9730 sig->ret = &mono_defaults.void_class->byval_arg;
9734 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9736 mono_mb_emit_byte (mb, CEE_RET);
9738 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9739 ret = mono_mb_create (mb, sig, 4, info);
9751 /* LOCKING: vars accessed under the marshal lock */
9752 static ArrayElemAddr *elem_addr_cache = NULL;
9753 static int elem_addr_cache_size = 0;
9754 static int elem_addr_cache_next = 0;
9757 * mono_marshal_get_array_address:
9758 * @rank: rank of the array type
9759 * @elem_size: size in bytes of an element of an array.
9761 * Returns a MonoMethod that implements the code to get the address
9762 * of an element in a multi-dimenasional array of @rank dimensions.
9763 * The returned method takes an array as the first argument and then
9764 * @rank indexes for the @rank dimensions.
9765 * If ELEM_SIZE is 0, read the array size from the array object.
9768 mono_marshal_get_array_address (int rank, int elem_size)
9771 MonoMethodBuilder *mb;
9772 MonoMethodSignature *sig;
9775 int i, bounds, ind, realidx;
9776 int branch_pos, *branch_positions;
9780 mono_marshal_lock ();
9781 for (i = 0; i < elem_addr_cache_next; ++i) {
9782 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9783 ret = elem_addr_cache [i].method;
9787 mono_marshal_unlock ();
9791 branch_positions = g_new0 (int, rank);
9793 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9795 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9796 sig->ret = &mono_defaults.int_class->byval_arg;
9797 sig->params [0] = &mono_defaults.object_class->byval_arg;
9798 for (i = 0; i < rank; ++i) {
9799 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9802 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9803 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9807 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9808 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9809 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9811 /* bounds = array->bounds; */
9812 mono_mb_emit_ldarg (mb, 0);
9813 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9814 mono_mb_emit_byte (mb, CEE_LDIND_I);
9815 mono_mb_emit_stloc (mb, bounds);
9817 /* ind is the overall element index, realidx is the partial index in a single dimension */
9818 /* ind = idx0 - bounds [0].lower_bound */
9819 mono_mb_emit_ldarg (mb, 1);
9820 mono_mb_emit_ldloc (mb, bounds);
9821 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9822 mono_mb_emit_byte (mb, CEE_ADD);
9823 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9824 mono_mb_emit_byte (mb, CEE_SUB);
9825 mono_mb_emit_stloc (mb, ind);
9826 /* if (ind >= bounds [0].length) goto exeception; */
9827 mono_mb_emit_ldloc (mb, ind);
9828 mono_mb_emit_ldloc (mb, bounds);
9829 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9830 mono_mb_emit_byte (mb, CEE_ADD);
9831 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9832 /* note that we use unsigned comparison */
9833 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9835 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9836 * We could also decide to ignore the passed elem_size and get it
9837 * from the array object, to reduce the number of methods we generate:
9838 * the additional cost is 3 memory loads and a non-immediate mul.
9840 for (i = 1; i < rank; ++i) {
9841 /* realidx = idxi - bounds [i].lower_bound */
9842 mono_mb_emit_ldarg (mb, 1 + i);
9843 mono_mb_emit_ldloc (mb, bounds);
9844 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9845 mono_mb_emit_byte (mb, CEE_ADD);
9846 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9847 mono_mb_emit_byte (mb, CEE_SUB);
9848 mono_mb_emit_stloc (mb, realidx);
9849 /* if (realidx >= bounds [i].length) goto exeception; */
9850 mono_mb_emit_ldloc (mb, realidx);
9851 mono_mb_emit_ldloc (mb, bounds);
9852 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9853 mono_mb_emit_byte (mb, CEE_ADD);
9854 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9855 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9856 /* ind = ind * bounds [i].length + realidx */
9857 mono_mb_emit_ldloc (mb, ind);
9858 mono_mb_emit_ldloc (mb, bounds);
9859 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9860 mono_mb_emit_byte (mb, CEE_ADD);
9861 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9862 mono_mb_emit_byte (mb, CEE_MUL);
9863 mono_mb_emit_ldloc (mb, realidx);
9864 mono_mb_emit_byte (mb, CEE_ADD);
9865 mono_mb_emit_stloc (mb, ind);
9868 /* return array->vector + ind * element_size */
9869 mono_mb_emit_ldarg (mb, 0);
9870 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9871 mono_mb_emit_ldloc (mb, ind);
9873 mono_mb_emit_icon (mb, elem_size);
9875 /* Load arr->vtable->klass->sizes.element_class */
9876 mono_mb_emit_ldarg (mb, 0);
9877 mono_mb_emit_byte (mb, CEE_CONV_I);
9878 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9879 mono_mb_emit_byte (mb, CEE_ADD);
9880 mono_mb_emit_byte (mb, CEE_LDIND_I);
9881 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9882 mono_mb_emit_byte (mb, CEE_ADD);
9883 mono_mb_emit_byte (mb, CEE_LDIND_I);
9884 /* sizes is an union, so this reads sizes.element_size */
9885 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9886 mono_mb_emit_byte (mb, CEE_ADD);
9887 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9889 mono_mb_emit_byte (mb, CEE_MUL);
9890 mono_mb_emit_byte (mb, CEE_ADD);
9891 mono_mb_emit_byte (mb, CEE_RET);
9893 /* patch the branches to get here and throw */
9894 for (i = 1; i < rank; ++i) {
9895 mono_mb_patch_branch (mb, branch_positions [i]);
9897 mono_mb_patch_branch (mb, branch_pos);
9898 /* throw exception */
9899 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9901 g_free (branch_positions);
9902 #endif /* DISABLE_JIT */
9904 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9905 info->d.element_addr.rank = rank;
9906 info->d.element_addr.elem_size = elem_size;
9907 ret = mono_mb_create (mb, sig, 4, info);
9910 /* cache the result */
9912 mono_marshal_lock ();
9913 for (i = 0; i < elem_addr_cache_next; ++i) {
9914 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9915 /* FIXME: free ret */
9916 ret = elem_addr_cache [i].method;
9922 if (elem_addr_cache_next >= elem_addr_cache_size) {
9923 int new_size = elem_addr_cache_size + 4;
9924 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9925 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9926 g_free (elem_addr_cache);
9927 elem_addr_cache = new_array;
9928 elem_addr_cache_size = new_size;
9930 elem_addr_cache [elem_addr_cache_next].rank = rank;
9931 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9932 elem_addr_cache [elem_addr_cache_next].method = ret;
9933 elem_addr_cache_next ++;
9935 mono_marshal_unlock ();
9940 * mono_marshal_get_array_accessor_wrapper:
9942 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9945 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9947 MonoMethodSignature *sig;
9948 MonoMethodBuilder *mb;
9952 MonoGenericContext *ctx = NULL;
9953 MonoMethod *orig_method = NULL;
9954 MonoGenericContainer *container = NULL;
9958 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9959 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9960 * FIXME: Use generic methods.
9967 g_assert_not_reached ();
9969 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9970 if ((res = mono_marshal_find_in_cache (cache, method)))
9974 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9977 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9980 /* Call the method */
9982 mono_mb_emit_ldarg (mb, 0);
9983 for (i = 0; i < sig->param_count; i++)
9984 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9988 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9989 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9991 mono_mb_emit_managed_call (mb, method, NULL);
9993 mono_mb_emit_byte (mb, CEE_RET);
9996 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9997 info->d.array_accessor.method = method;
10001 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10002 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10004 res = mono_mb_create_and_cache_full (cache, method,
10005 mb, sig, sig->param_count + 16,
10014 mono_marshal_alloc (gulong size)
10019 res = CoTaskMemAlloc (size);
10021 res = g_try_malloc ((gulong)size);
10023 mono_gc_out_of_memory ((gulong)size);
10029 mono_marshal_free (gpointer ptr)
10032 CoTaskMemFree (ptr);
10039 mono_marshal_free_array (gpointer *ptr, int size)
10046 for (i = 0; i < size; i++)
10052 mono_marshal_string_to_utf16 (MonoString *s)
10054 return s ? mono_string_chars (s) : NULL;
10058 mono_marshal_string_to_utf16_copy (MonoString *s)
10063 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10064 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10065 res [mono_string_length (s)] = 0;
10071 * mono_marshal_set_last_error:
10073 * This function is invoked to set the last error value from a P/Invoke call
10074 * which has SetLastError set.
10077 mono_marshal_set_last_error (void)
10080 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10082 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10087 mono_marshal_set_last_error_windows (int error)
10090 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10095 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10096 gpointer dest, gint32 length)
10101 MONO_CHECK_ARG_NULL (src,);
10102 MONO_CHECK_ARG_NULL (dest,);
10104 if (src->obj.vtable->klass->rank != 1) {
10105 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10108 if (start_index < 0) {
10109 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10113 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10116 if (start_index + length > mono_array_length (src)) {
10117 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10121 element_size = mono_array_element_size (src->obj.vtable->klass);
10123 /* no references should be involved */
10124 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10126 memcpy (dest, source_addr, length * element_size);
10130 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10131 MonoArray *dest, gint32 length)
10136 MONO_CHECK_ARG_NULL (src,);
10137 MONO_CHECK_ARG_NULL (dest,);
10139 if (dest->obj.vtable->klass->rank != 1) {
10140 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10143 if (start_index < 0) {
10144 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10148 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10151 if (start_index + length > mono_array_length (dest)) {
10152 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10155 element_size = mono_array_element_size (dest->obj.vtable->klass);
10157 /* no references should be involved */
10158 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10160 memcpy (dest_addr, src, length * element_size);
10164 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10169 return mono_string_new (mono_domain_get (), ptr);
10173 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10176 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10179 return mono_string_new_len (mono_domain_get (), ptr, len);
10184 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10186 MonoDomain *domain = mono_domain_get ();
10196 return mono_string_new_utf16 (domain, ptr, len);
10200 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10202 MonoDomain *domain = mono_domain_get ();
10205 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10208 return mono_string_new_utf16 (domain, ptr, len);
10213 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10215 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10219 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10225 MONO_CHECK_ARG_NULL (rtype, 0);
10227 type = rtype->type;
10228 klass = mono_class_from_mono_type (type);
10229 if (!mono_class_init (klass)) {
10230 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10234 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10236 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10237 return sizeof (gpointer);
10238 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10240 MonoException *exc;
10242 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10243 exc = mono_get_exception_argument ("t", msg);
10245 mono_set_pending_exception (exc);
10249 return mono_class_native_size (klass, NULL);
10253 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10255 MonoMethod *method;
10258 MONO_CHECK_ARG_NULL (obj,);
10259 MONO_CHECK_ARG_NULL (dst,);
10261 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10265 pa [2] = &delete_old;
10267 mono_runtime_invoke (method, NULL, pa, NULL);
10271 ptr_to_structure (gpointer src, MonoObject *dst)
10273 MonoMethod *method;
10276 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10281 mono_runtime_invoke (method, NULL, pa, NULL);
10285 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10289 MONO_CHECK_ARG_NULL (src,);
10290 MONO_CHECK_ARG_NULL (dst,);
10292 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10294 if (t->type == MONO_TYPE_VALUETYPE) {
10295 MonoException *exc;
10298 tmp = g_strdup_printf ("Destination is a boxed value type.");
10299 exc = mono_get_exception_argument ("dst", tmp);
10302 mono_set_pending_exception (exc);
10306 ptr_to_structure (src, dst);
10310 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10313 MonoDomain *domain = mono_domain_get ();
10318 MONO_CHECK_ARG_NULL (type, NULL);
10320 klass = mono_class_from_mono_type (type->type);
10321 if (!mono_class_init (klass)) {
10322 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10326 res = mono_object_new (domain, klass);
10328 ptr_to_structure (src, res);
10334 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10336 MonoMarshalType *info;
10339 int match_index = -1;
10341 MONO_CHECK_ARG_NULL (type, 0);
10342 MONO_CHECK_ARG_NULL (field_name, 0);
10344 fname = mono_string_to_utf8 (field_name);
10345 klass = mono_class_from_mono_type (type->type);
10346 if (!mono_class_init (klass)) {
10347 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10351 while (klass && match_index == -1) {
10352 MonoClassField* field;
10354 gpointer iter = NULL;
10355 while ((field = mono_class_get_fields (klass, &iter))) {
10356 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10358 if (!strcmp (fname, mono_field_get_name (field))) {
10365 if (match_index == -1)
10366 klass = klass->parent;
10371 if(match_index == -1) {
10372 MonoException* exc;
10375 /* Get back original class instance */
10376 klass = mono_class_from_mono_type (type->type);
10378 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10379 exc = mono_get_exception_argument ("fieldName", tmp);
10382 mono_set_pending_exception ((MonoException*)exc);
10386 info = mono_marshal_load_type_info (klass);
10387 return info->fields [match_index].offset;
10391 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10396 tres = mono_string_to_utf8 (string);
10400 len = strlen (tres) + 1;
10401 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10402 memcpy (ret, tres, len);
10407 return mono_string_to_utf8 (string);
10412 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10414 if (string == NULL)
10417 #ifdef TARGET_WIN32
10418 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10419 ((mono_string_length (string) + 1) * 2);
10421 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10423 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10424 res [mono_string_length (string)] = 0;
10430 mono_struct_delete_old (MonoClass *klass, char *ptr)
10432 MonoMarshalType *info;
10435 info = mono_marshal_load_type_info (klass);
10437 for (i = 0; i < info->num_fields; i++) {
10438 MonoMarshalConv conv;
10439 MonoType *ftype = info->fields [i].field->type;
10442 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10445 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10446 klass->unicode, &conv);
10448 cpos = ptr + info->fields [i].offset;
10451 case MONO_MARSHAL_CONV_NONE:
10452 if (MONO_TYPE_ISSTRUCT (ftype)) {
10453 mono_struct_delete_old (ftype->data.klass, cpos);
10457 case MONO_MARSHAL_CONV_STR_LPWSTR:
10458 /* We assume this field points inside a MonoString */
10460 case MONO_MARSHAL_CONV_STR_LPTSTR:
10461 #ifdef TARGET_WIN32
10462 /* We assume this field points inside a MonoString
10466 case MONO_MARSHAL_CONV_STR_LPSTR:
10467 case MONO_MARSHAL_CONV_STR_BSTR:
10468 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10469 case MONO_MARSHAL_CONV_STR_TBSTR:
10470 mono_marshal_free (*(gpointer *)cpos);
10480 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10484 MONO_CHECK_ARG_NULL (src,);
10485 MONO_CHECK_ARG_NULL (type,);
10487 klass = mono_class_from_mono_type (type->type);
10488 if (!mono_class_init (klass)) {
10489 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10493 mono_struct_delete_old (klass, (char *)src);
10497 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10500 size_t s = (size_t)size;
10503 /* This returns a valid pointer for size 0 on MS.NET */
10507 res = GlobalAlloc (GMEM_FIXED, s);
10509 res = g_try_malloc (s);
10512 mono_gc_out_of_memory (s);
10518 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10521 size_t s = (size_t)size;
10524 mono_gc_out_of_memory (s);
10529 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10531 res = g_try_realloc (ptr, s);
10534 mono_gc_out_of_memory (s);
10540 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10550 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10555 res = CoTaskMemAlloc (size);
10557 if ((gulong)size == 0)
10558 /* This returns a valid pointer for size 0 on MS.NET */
10561 res = g_try_malloc ((gulong)size);
10564 mono_gc_out_of_memory ((gulong)size);
10569 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10572 CoTaskMemFree (ptr);
10579 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10584 res = CoTaskMemRealloc (ptr, size);
10586 res = g_try_realloc (ptr, (gulong)size);
10589 mono_gc_out_of_memory ((gulong)size);
10594 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10596 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10600 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10602 MonoClass *klass = mono_type_get_class (type->type);
10603 if (!mono_class_init (klass)) {
10604 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10608 return mono_ftnptr_to_delegate (klass, ftn);
10612 * mono_marshal_is_loading_type_info:
10614 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10618 mono_marshal_is_loading_type_info (MonoClass *klass)
10620 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10622 return g_slist_find (loads_list, klass) != NULL;
10626 * mono_marshal_load_type_info:
10628 * Initialize klass->marshal_info using information from metadata. This function can
10629 * recursively call itself, and the caller is responsible to avoid that by calling
10630 * mono_marshal_is_loading_type_info () beforehand.
10632 * LOCKING: Acquires the loader lock.
10635 mono_marshal_load_type_info (MonoClass* klass)
10638 guint32 native_size = 0, min_align = 1, packing;
10639 MonoMarshalType *info;
10640 MonoClassField* field;
10643 GSList *loads_list;
10645 g_assert (klass != NULL);
10647 if (klass->marshal_info)
10648 return klass->marshal_info;
10650 if (!klass->inited)
10651 mono_class_init (klass);
10653 if (klass->marshal_info)
10654 return klass->marshal_info;
10657 * This function can recursively call itself, so we keep the list of classes which are
10658 * under initialization in a TLS list.
10660 g_assert (!mono_marshal_is_loading_type_info (klass));
10661 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10662 loads_list = g_slist_prepend (loads_list, klass);
10663 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10666 while ((field = mono_class_get_fields (klass, &iter))) {
10667 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10669 if (mono_field_is_deleted (field))
10674 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10676 /* The mempool is protected by the loader lock */
10677 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10678 info->num_fields = count;
10680 /* Try to find a size for this type in metadata */
10681 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10683 if (klass->parent) {
10684 int parent_size = mono_class_native_size (klass->parent, NULL);
10686 /* Add parent size to real size */
10687 native_size += parent_size;
10688 info->native_size = parent_size;
10691 packing = klass->packing_size ? klass->packing_size : 8;
10694 while ((field = mono_class_get_fields (klass, &iter))) {
10698 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10701 if (mono_field_is_deleted (field))
10703 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10704 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10705 NULL, NULL, &info->fields [j].mspec);
10707 info->fields [j].field = field;
10709 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10710 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10711 /* This field is a hack inserted by MCS to empty structures */
10716 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10717 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10718 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10719 &align, TRUE, klass->unicode);
10720 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10721 min_align = MAX (align, min_align);
10722 info->fields [j].offset = info->native_size;
10723 info->fields [j].offset += align - 1;
10724 info->fields [j].offset &= ~(align - 1);
10725 info->native_size = info->fields [j].offset + size;
10727 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10728 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10729 &align, TRUE, klass->unicode);
10730 min_align = MAX (align, min_align);
10731 info->fields [j].offset = field->offset - sizeof (MonoObject);
10732 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10738 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10739 info->native_size = MAX (native_size, info->native_size);
10741 * If the provided Size is equal or larger than the calculated size, and there
10742 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10744 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10745 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10748 min_align = MIN (min_align, packing);
10752 if (info->native_size & (min_align - 1)) {
10753 info->native_size += min_align - 1;
10754 info->native_size &= ~(min_align - 1);
10757 info->min_align = min_align;
10759 /* Update the class's blittable info, if the layouts don't match */
10760 if (info->native_size != mono_class_value_size (klass, NULL))
10761 klass->blittable = FALSE;
10763 /* If this is an array type, ensure that we have element info */
10764 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10765 mono_marshal_load_type_info (klass->element_class);
10768 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10769 loads_list = g_slist_remove (loads_list, klass);
10770 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10772 mono_marshal_lock ();
10773 if (!klass->marshal_info) {
10774 /*We do double-checking locking on marshal_info */
10775 mono_memory_barrier ();
10776 klass->marshal_info = info;
10778 mono_marshal_unlock ();
10780 return klass->marshal_info;
10784 * mono_class_native_size:
10787 * Returns: the native size of an object instance (when marshaled
10788 * to unmanaged code)
10791 mono_class_native_size (MonoClass *klass, guint32 *align)
10793 if (!klass->marshal_info) {
10794 if (mono_marshal_is_loading_type_info (klass)) {
10799 mono_marshal_load_type_info (klass);
10804 *align = klass->marshal_info->min_align;
10806 return klass->marshal_info->native_size;
10810 * mono_type_native_stack_size:
10811 * @t: the type to return the size it uses on the stack
10813 * Returns: the number of bytes required to hold an instance of this
10814 * type on the native stack
10817 mono_type_native_stack_size (MonoType *t, guint32 *align)
10821 g_assert (t != NULL);
10827 *align = sizeof (gpointer);
10828 return sizeof (gpointer);
10832 case MONO_TYPE_BOOLEAN:
10833 case MONO_TYPE_CHAR:
10844 case MONO_TYPE_STRING:
10845 case MONO_TYPE_OBJECT:
10846 case MONO_TYPE_CLASS:
10847 case MONO_TYPE_SZARRAY:
10848 case MONO_TYPE_PTR:
10849 case MONO_TYPE_FNPTR:
10850 case MONO_TYPE_ARRAY:
10851 *align = sizeof (gpointer);
10852 return sizeof (gpointer);
10857 *align = MONO_ABI_ALIGNOF (double);
10861 *align = MONO_ABI_ALIGNOF (gint64);
10863 case MONO_TYPE_GENERICINST:
10864 if (!mono_type_generic_inst_is_valuetype (t)) {
10865 *align = sizeof (gpointer);
10866 return sizeof (gpointer);
10869 case MONO_TYPE_TYPEDBYREF:
10870 case MONO_TYPE_VALUETYPE: {
10872 MonoClass *klass = mono_class_from_mono_type (t);
10874 if (klass->enumtype)
10875 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10877 size = mono_class_native_size (klass, align);
10878 *align = *align + 3;
10888 g_error ("type 0x%02x unknown", t->type);
10894 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10895 gboolean as_field, gboolean unicode)
10897 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10900 switch (native_type) {
10901 case MONO_NATIVE_BOOLEAN:
10904 case MONO_NATIVE_I1:
10905 case MONO_NATIVE_U1:
10908 case MONO_NATIVE_I2:
10909 case MONO_NATIVE_U2:
10910 case MONO_NATIVE_VARIANTBOOL:
10913 case MONO_NATIVE_I4:
10914 case MONO_NATIVE_U4:
10915 case MONO_NATIVE_ERROR:
10918 case MONO_NATIVE_I8:
10919 case MONO_NATIVE_U8:
10920 *align = MONO_ABI_ALIGNOF (gint64);
10922 case MONO_NATIVE_R4:
10925 case MONO_NATIVE_R8:
10926 *align = MONO_ABI_ALIGNOF (double);
10928 case MONO_NATIVE_INT:
10929 case MONO_NATIVE_UINT:
10930 case MONO_NATIVE_LPSTR:
10931 case MONO_NATIVE_LPWSTR:
10932 case MONO_NATIVE_LPTSTR:
10933 case MONO_NATIVE_BSTR:
10934 case MONO_NATIVE_ANSIBSTR:
10935 case MONO_NATIVE_TBSTR:
10936 case MONO_NATIVE_LPARRAY:
10937 case MONO_NATIVE_SAFEARRAY:
10938 case MONO_NATIVE_IUNKNOWN:
10939 case MONO_NATIVE_IDISPATCH:
10940 case MONO_NATIVE_INTERFACE:
10941 case MONO_NATIVE_ASANY:
10942 case MONO_NATIVE_FUNC:
10943 case MONO_NATIVE_LPSTRUCT:
10944 *align = MONO_ABI_ALIGNOF (gpointer);
10945 return sizeof (gpointer);
10946 case MONO_NATIVE_STRUCT:
10947 klass = mono_class_from_mono_type (type);
10948 if (klass == mono_defaults.object_class &&
10949 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10953 return mono_class_native_size (klass, align);
10954 case MONO_NATIVE_BYVALTSTR: {
10955 int esize = unicode ? 2: 1;
10958 return mspec->data.array_data.num_elem * esize;
10960 case MONO_NATIVE_BYVALARRAY: {
10961 // FIXME: Have to consider ArraySubType
10963 klass = mono_class_from_mono_type (type);
10964 if (klass->element_class == mono_defaults.char_class) {
10965 esize = unicode ? 2 : 1;
10968 esize = mono_class_native_size (klass->element_class, align);
10971 return mspec->data.array_data.num_elem * esize;
10973 case MONO_NATIVE_CUSTOM:
10974 *align = sizeof (gpointer);
10975 return sizeof (gpointer);
10977 case MONO_NATIVE_CURRENCY:
10978 case MONO_NATIVE_VBBYREFSTR:
10980 g_error ("native type %02x not implemented", native_type);
10983 g_assert_not_reached ();
10988 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10996 t = &o->vtable->klass->byval_arg;
11000 case MONO_TYPE_PTR:
11003 case MONO_TYPE_BOOLEAN:
11006 case MONO_TYPE_CHAR:
11011 return mono_object_unbox (o);
11013 case MONO_TYPE_STRING:
11014 switch (string_encoding) {
11015 case MONO_NATIVE_LPWSTR:
11016 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11018 case MONO_NATIVE_LPSTR:
11019 return mono_string_to_lpstr ((MonoString*)o);
11022 g_warning ("marshaling conversion %d not implemented", string_encoding);
11023 g_assert_not_reached ();
11026 case MONO_TYPE_CLASS:
11027 case MONO_TYPE_VALUETYPE: {
11028 MonoMethod *method;
11031 MonoBoolean delete_old = FALSE;
11033 klass = t->data.klass;
11035 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11038 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11039 klass->blittable || klass->enumtype))
11040 return mono_object_unbox (o);
11042 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11044 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11045 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11049 pa [2] = &delete_old;
11051 mono_runtime_invoke (method, NULL, pa, NULL);
11059 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11064 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11072 t = &o->vtable->klass->byval_arg;
11074 case MONO_TYPE_STRING:
11075 switch (string_encoding) {
11076 case MONO_NATIVE_LPWSTR:
11077 case MONO_NATIVE_LPSTR:
11078 mono_marshal_free (ptr);
11081 g_warning ("marshaling conversion %d not implemented", string_encoding);
11082 g_assert_not_reached ();
11085 case MONO_TYPE_CLASS:
11086 case MONO_TYPE_VALUETYPE: {
11087 klass = t->data.klass;
11089 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11090 klass->blittable || klass->enumtype))
11093 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11094 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11100 mono_runtime_invoke (method, NULL, pa, NULL);
11103 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11104 mono_struct_delete_old (klass, ptr);
11107 mono_marshal_free (ptr);
11116 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11118 MonoMethodSignature *sig, *csig;
11119 MonoMethodBuilder *mb;
11124 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11125 mb->method->slot = -1;
11127 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11128 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11130 sig = mono_method_signature (method);
11131 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11132 csig->generic_param_count = 0;
11134 #ifndef DISABLE_JIT
11135 mono_mb_emit_ldarg (mb, 0);
11136 for (i = 0; i < csig->param_count; i++)
11137 mono_mb_emit_ldarg (mb, i + 1);
11138 mono_mb_emit_managed_call (mb, method, NULL);
11139 mono_mb_emit_byte (mb, CEE_RET);
11141 /* We can corlib internal methods */
11142 mb->skip_visibility = TRUE;
11144 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11145 info->d.generic_array_helper.method = method;
11146 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11154 * The mono_win32_compat_* functions are implementations of inline
11155 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11156 * although not exported by kernel32.
11158 * We map the appropiate kernel32 entries to these functions using
11159 * dllmaps declared in the global etc/mono/config.
11163 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11165 if (!dest || !source)
11168 memcpy (dest, source, length);
11172 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11174 memset (dest, fill, length);
11178 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11180 if (!dest || !source)
11183 memmove (dest, source, length);
11187 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11189 memset (dest, 0, length);
11193 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11198 for (i = 0; i < len; ++i)
11202 g_assert (i < len);
11205 while (byte && !(byte & 1))
11207 g_assert (byte == 1);
11210 *bitmask = buf [i];
11214 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11216 MonoMethodBuilder *mb;
11217 MonoMethodSignature *sig, *csig;
11218 MonoExceptionClause *clause;
11223 int i, param_count, sig_size, pos_leave;
11224 int coop_gc_var, coop_gc_dummy_local;
11228 klass = method->klass;
11229 image = method->klass->image;
11231 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11233 if ((res = mono_marshal_find_in_cache (cache, method)))
11236 sig = mono_method_signature (method);
11237 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11239 /* add "this" and exception param */
11240 param_count = sig->param_count + sig->hasthis + 1;
11242 /* dup & extend signature */
11243 csig = mono_metadata_signature_alloc (image, param_count);
11244 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11245 memcpy (csig, sig, sig_size);
11246 csig->param_count = param_count;
11249 csig->call_convention = MONO_CALL_DEFAULT;
11251 if (sig->hasthis) {
11253 csig->params [0] = &klass->byval_arg;
11254 /* move params up by one */
11255 for (i = 0; i < sig->param_count; i++)
11256 csig->params [i + 1] = sig->params [i];
11259 /* setup exception param as byref+[out] */
11260 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11261 &mono_defaults.exception_class->byval_arg);
11262 csig->params [param_count - 1]->byref = 1;
11263 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11265 /* convert struct return to object */
11266 if (MONO_TYPE_ISSTRUCT (sig->ret))
11267 csig->ret = &mono_defaults.object_class->byval_arg;
11269 #ifndef DISABLE_JIT
11270 /* local 0 (temp for exception object) */
11271 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11273 /* local 1 (temp for result) */
11274 if (!MONO_TYPE_IS_VOID (sig->ret))
11275 mono_mb_add_local (mb, sig->ret);
11277 if (mono_threads_is_coop_enabled ()) {
11278 /* local 4, the local to be used when calling the reset_blocking funcs */
11279 /* tons of code hardcode 3 to be the return var */
11280 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11281 /* local 5, the local used to get a stack address for suspend funcs */
11282 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11285 /* clear exception arg */
11286 mono_mb_emit_ldarg (mb, param_count - 1);
11287 mono_mb_emit_byte (mb, CEE_LDNULL);
11288 mono_mb_emit_byte (mb, CEE_STIND_REF);
11290 if (mono_threads_is_coop_enabled ()) {
11291 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11292 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11293 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11294 mono_mb_emit_stloc (mb, coop_gc_var);
11298 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11299 clause->try_offset = mono_mb_get_label (mb);
11301 /* push method's args */
11302 for (i = 0; i < param_count - 1; i++) {
11306 mono_mb_emit_ldarg (mb, i);
11308 /* get the byval type of the param */
11309 klass = mono_class_from_mono_type (csig->params [i]);
11310 type = &klass->byval_arg;
11312 /* unbox struct args */
11313 if (MONO_TYPE_ISSTRUCT (type)) {
11314 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11316 /* byref args & and the "this" arg must remain a ptr.
11317 Otherwise make a copy of the value type */
11318 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11319 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11321 csig->params [i] = &mono_defaults.object_class->byval_arg;
11326 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11327 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11329 mono_mb_emit_op (mb, CEE_CALL, method);
11331 /* save result at local 1 */
11332 if (!MONO_TYPE_IS_VOID (sig->ret))
11333 mono_mb_emit_stloc (mb, 1);
11335 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11338 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11339 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11340 clause->data.catch_class = mono_defaults.object_class;
11342 clause->handler_offset = mono_mb_get_label (mb);
11344 /* store exception at local 0 */
11345 mono_mb_emit_stloc (mb, 0);
11346 mono_mb_emit_ldarg (mb, param_count - 1);
11347 mono_mb_emit_ldloc (mb, 0);
11348 mono_mb_emit_byte (mb, CEE_STIND_REF);
11349 mono_mb_emit_branch (mb, CEE_LEAVE);
11351 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11353 mono_mb_set_clauses (mb, 1, clause);
11355 mono_mb_patch_branch (mb, pos_leave);
11358 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11359 mono_mb_emit_ldloc (mb, 1);
11361 /* box the return value */
11362 if (MONO_TYPE_ISSTRUCT (sig->ret))
11363 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11366 if (mono_threads_is_coop_enabled ()) {
11367 /* XXX merge reset_blocking_end with detach */
11368 mono_mb_emit_ldloc (mb, coop_gc_var);
11369 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11370 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11373 mono_mb_emit_byte (mb, CEE_RET);
11376 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11383 * mono_marshal_free_dynamic_wrappers:
11385 * Free wrappers of the dynamic method METHOD.
11388 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11390 MonoImage *image = method->klass->image;
11392 g_assert (method_is_dynamic (method));
11394 /* This could be called during shutdown */
11395 if (marshal_mutex_initialized)
11396 mono_marshal_lock ();
11398 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11399 * they could be shared with other methods ?
11401 if (image->wrapper_caches.runtime_invoke_direct_cache)
11402 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11403 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11404 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11405 // FIXME: Need to clear the caches in other images as well
11406 if (image->delegate_bound_static_invoke_cache)
11407 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11409 if (marshal_mutex_initialized)
11410 mono_marshal_unlock ();