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/metadata-internals.h"
31 #include "mono/metadata/domain-internals.h"
32 #include "mono/metadata/gc-internal.h"
33 #include "mono/metadata/threads-types.h"
34 #include "mono/metadata/string-icalls.h"
35 #include "mono/metadata/attrdefs.h"
36 #include "mono/metadata/gc-internal.h"
37 #include "mono/metadata/cominterop.h"
38 #include "mono/metadata/remoting.h"
39 #include "mono/metadata/reflection-internals.h"
40 #include "mono/metadata/threadpool-ms.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
45 #include <mono/utils/mono-threads.h>
50 /* #define DEBUG_RUNTIME_CODE */
52 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
56 #include "mono/cil/opcode.def"
62 * This mutex protects the various marshalling related caches in MonoImage
63 * and a few other data structures static to this file.
65 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
66 * runtime locking latice. Which means it can take simple locks suck as the image lock.
68 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
69 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
70 static mono_mutex_t marshal_mutex;
71 static gboolean marshal_mutex_initialized;
73 static MonoNativeTlsKey last_error_tls_id;
75 static MonoNativeTlsKey load_type_info_tls_id;
77 static gboolean use_aot_wrappers;
80 delegate_hash_table_add (MonoDelegate *d);
83 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
86 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
89 mono_struct_delete_old (MonoClass *klass, char *ptr);
92 mono_marshal_string_to_utf16 (MonoString *s);
95 mono_marshal_string_to_utf16_copy (MonoString *s);
98 mono_string_to_lpstr (MonoString *string_obj);
100 static MonoStringBuilder *
101 mono_string_utf8_to_builder2 (char *text);
103 static MonoStringBuilder *
104 mono_string_utf16_to_builder2 (gunichar2 *text);
107 mono_string_new_len_wrapper (const char *text, guint length);
110 mono_string_from_byvalstr (const char *data, int len);
113 mono_string_from_byvalwstr (gunichar2 *data, int len);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
122 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
125 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
127 static MonoAsyncResult *
128 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_marshal_set_last_error_windows (int error);
137 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
139 static void init_safe_handle (void);
141 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
142 static MonoMethod *sh_dangerous_add_ref;
143 static MonoMethod *sh_dangerous_release;
149 sh_dangerous_add_ref = mono_class_get_method_from_name (
150 mono_defaults.safehandle_class, "DangerousAddRef", 1);
151 sh_dangerous_release = mono_class_get_method_from_name (
152 mono_defaults.safehandle_class, "DangerousRelease", 0);
156 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
158 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
160 mono_register_jit_icall (func, name, sig, save);
163 static MonoMethodSignature*
164 signature_dup (MonoImage *image, MonoMethodSignature *sig)
166 MonoMethodSignature *res;
169 res = mono_metadata_signature_alloc (image, sig->param_count);
170 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
171 memcpy (res, sig, sigsize);
177 mono_signature_no_pinvoke (MonoMethod *method)
179 MonoMethodSignature *sig = mono_method_signature (method);
181 sig = signature_dup (method->klass->image, sig);
182 sig->pinvoke = FALSE;
189 mono_marshal_init_tls (void)
191 mono_native_tls_alloc (&last_error_tls_id, NULL);
192 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
196 mono_marshal_init (void)
198 static gboolean module_initialized = FALSE;
200 if (!module_initialized) {
201 module_initialized = TRUE;
202 mono_mutex_init_recursive (&marshal_mutex);
203 marshal_mutex_initialized = TRUE;
205 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
206 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
207 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
208 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
209 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
210 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
211 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
212 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
213 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
214 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
215 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
216 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
217 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
218 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
219 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
220 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
221 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
222 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
223 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
224 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
225 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
226 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
227 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
228 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
229 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
230 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
231 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
232 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
233 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
234 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
235 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
236 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
237 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
238 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
239 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
240 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
241 register_icall (g_free, "g_free", "void ptr", FALSE);
242 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
243 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
244 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
245 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
246 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
247 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
248 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
249 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
250 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
251 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
253 mono_cominterop_init ();
254 mono_remoting_init ();
257 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "int", FALSE);
258 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void int", FALSE);
259 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","int", FALSE);
260 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void int", FALSE);
266 mono_marshal_cleanup (void)
268 mono_cominterop_cleanup ();
270 mono_native_tls_free (load_type_info_tls_id);
271 mono_native_tls_free (last_error_tls_id);
272 mono_mutex_destroy (&marshal_mutex);
273 marshal_mutex_initialized = FALSE;
277 mono_marshal_lock_internal (void)
279 mono_marshal_lock ();
283 mono_marshal_unlock_internal (void)
285 mono_marshal_unlock ();
289 mono_delegate_to_ftnptr (MonoDelegate *delegate)
291 MonoMethod *method, *wrapper;
293 uint32_t target_handle = 0;
298 if (delegate->delegate_trampoline)
299 return delegate->delegate_trampoline;
301 klass = ((MonoObject *)delegate)->vtable->klass;
302 g_assert (klass->delegate);
304 method = delegate->method;
306 if (mono_method_signature (method)->pinvoke) {
307 const char *exc_class, *exc_arg;
310 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
312 g_assert (exc_class);
313 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
318 if (delegate->target) {
319 /* Produce a location which can be embedded in JITted code */
320 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
323 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
325 delegate->delegate_trampoline = mono_compile_method (wrapper);
327 // Add the delegate to the delegate hash table
328 delegate_hash_table_add (delegate);
330 /* when the object is collected, collect the dynamic method, too */
331 mono_object_register_finalizer ((MonoObject*)delegate);
333 return delegate->delegate_trampoline;
337 * this hash table maps from a delegate trampoline object to a weak reference
338 * of the delegate. As an optimizations with a non-moving GC we store the
339 * object pointer itself, otherwise we use a GC handle.
341 static GHashTable *delegate_hash_table;
344 delegate_hash_table_new (void) {
345 return g_hash_table_new (NULL, NULL);
349 delegate_hash_table_remove (MonoDelegate *d)
351 guint32 gchandle = 0;
353 mono_marshal_lock ();
354 if (delegate_hash_table == NULL)
355 delegate_hash_table = delegate_hash_table_new ();
356 if (mono_gc_is_moving ())
357 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
358 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
359 mono_marshal_unlock ();
360 if (mono_gc_is_moving ())
361 mono_gchandle_free (gchandle);
365 delegate_hash_table_add (MonoDelegate *d)
368 guint32 old_gchandle;
370 mono_marshal_lock ();
371 if (delegate_hash_table == NULL)
372 delegate_hash_table = delegate_hash_table_new ();
373 if (mono_gc_is_moving ()) {
374 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
375 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
376 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
378 mono_gchandle_free (old_gchandle);
380 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
382 mono_marshal_unlock ();
386 * mono_marshal_use_aot_wrappers:
388 * Instructs this module to use AOT compatible wrappers.
391 mono_marshal_use_aot_wrappers (gboolean use)
393 use_aot_wrappers = use;
397 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
399 static MonoClass *UnmanagedFunctionPointerAttribute;
400 MonoCustomAttrInfo *cinfo;
401 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
403 if (!UnmanagedFunctionPointerAttribute)
404 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
406 /* The attribute is only available in Net 2.0 */
407 if (UnmanagedFunctionPointerAttribute) {
409 * The pinvoke attributes are stored in a real custom attribute so we have to
412 cinfo = mono_custom_attrs_from_class (klass);
413 if (cinfo && !mono_runtime_get_no_exec ()) {
415 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
417 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
419 if (!mono_error_ok (&error)) {
420 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
421 mono_error_cleanup (&error);
425 mono_custom_attrs_free (cinfo);
431 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
439 mono_marshal_lock ();
440 if (delegate_hash_table == NULL)
441 delegate_hash_table = delegate_hash_table_new ();
443 if (mono_gc_is_moving ()) {
444 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
445 mono_marshal_unlock ();
447 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
451 d = g_hash_table_lookup (delegate_hash_table, ftn);
452 mono_marshal_unlock ();
455 /* This is a native function, so construct a delegate for it */
456 MonoMethodSignature *sig;
458 MonoMarshalSpec **mspecs;
459 MonoMethod *invoke = mono_get_delegate_invoke (klass);
460 MonoMethodPInvoke piinfo;
464 if (use_aot_wrappers) {
465 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
466 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
468 memset (&piinfo, 0, sizeof (piinfo));
469 parse_unmanaged_function_pointer_attr (klass, &piinfo);
471 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
472 mono_method_get_marshal_info (invoke, mspecs);
473 /* Freed below so don't alloc from mempool */
474 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
477 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
480 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
482 mono_metadata_free_marshal_spec (mspecs [i]);
487 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
488 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
491 if (d->object.vtable->domain != mono_domain_get ())
492 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
498 mono_delegate_free_ftnptr (MonoDelegate *delegate)
503 delegate_hash_table_remove (delegate);
505 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
507 if (!delegate->target) {
508 /* The wrapper method is shared between delegates -> no need to free it */
517 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
520 method = mono_jit_info_get_method (ji);
521 method_data = ((MonoMethodWrapper*)method)->method_data;
523 /*the target gchandle is the first entry after size and the wrapper itself.*/
524 gchandle = GPOINTER_TO_UINT (method_data [2]);
527 mono_gchandle_free (gchandle);
529 mono_runtime_free_method (mono_object_domain (delegate), method);
534 mono_string_from_byvalstr (const char *data, int max_len)
536 MonoDomain *domain = mono_domain_get ();
542 while (len < max_len - 1 && data [len])
545 return mono_string_new_len (domain, data, len);
549 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
551 MonoDomain *domain = mono_domain_get ();
557 while (data [len]) len++;
559 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
563 mono_array_to_savearray (MonoArray *array)
568 g_assert_not_reached ();
573 mono_array_to_lparray (MonoArray *array)
576 gpointer *nativeArray = NULL;
577 int nativeArraySize = 0;
587 klass = array->obj.vtable->klass;
589 switch (klass->element_class->byval_arg.type) {
591 g_assert_not_reached ();
593 case MONO_TYPE_CLASS:
594 nativeArraySize = array->max_length;
595 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
596 for(i = 0; i < nativeArraySize; ++i)
597 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
600 case MONO_TYPE_BOOLEAN:
613 case MONO_TYPE_VALUETYPE:
617 case MONO_TYPE_GENERICINST:
618 case MONO_TYPE_OBJECT:
619 case MONO_TYPE_ARRAY:
620 case MONO_TYPE_SZARRAY:
621 case MONO_TYPE_STRING:
623 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
624 g_assert_not_reached ();
627 return array->vector;
631 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
642 klass = array->obj.vtable->klass;
644 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
645 for(i = 0; i < array->max_length; ++i)
646 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
653 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
655 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
657 if (elclass == mono_defaults.byte_class) {
658 GError *error = NULL;
662 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
665 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
669 g_error_free (error);
672 g_assert_not_reached ();
676 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
678 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
682 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
684 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
686 if (elclass == mono_defaults.byte_class) {
688 GError *error = NULL;
690 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
692 MonoException *exc = mono_get_exception_argument ("string", error->message);
693 g_error_free (error);
694 mono_raise_exception (exc);
697 memcpy (native_arr, as, MIN (strlen (as), elnum));
700 g_assert_not_reached ();
705 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
707 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
710 static MonoStringBuilder *
711 mono_string_builder_new (int starting_string_length)
713 static MonoClass *string_builder_class;
714 static MonoMethod *sb_ctor;
715 static void *args [1];
716 int initial_len = starting_string_length;
722 MonoMethodDesc *desc;
725 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
726 g_assert (string_builder_class);
727 desc = mono_method_desc_new (":.ctor(int)", FALSE);
728 m = mono_method_desc_search_in_class (desc, string_builder_class);
730 mono_method_desc_free (desc);
731 mono_memory_barrier ();
735 // We make a new array in the _to_builder function, so this
736 // array will always be garbage collected.
737 args [0] = &initial_len;
739 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
743 mono_runtime_invoke (sb_ctor, sb, args, &exc);
746 g_assert (sb->chunkChars->max_length >= initial_len);
752 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
754 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
755 gunichar2 *charSrc = (gunichar2 *)text;
756 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
758 sb->chunkLength = string_len;
764 mono_string_utf16_to_builder2 (gunichar2 *text)
770 for (len = 0; text [len] != 0; ++len);
772 MonoStringBuilder *sb = mono_string_builder_new (len);
773 mono_string_utf16_to_builder (sb, text);
779 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
784 int len = strlen (text);
785 if (len > mono_string_builder_capacity (sb))
786 len = mono_string_builder_capacity (sb);
788 GError *error = NULL;
790 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
793 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
794 mono_string_utf16_to_builder_copy (sb, ut, copied);
796 g_error_free (error);
802 mono_string_utf8_to_builder2 (char *text)
807 int len = strlen (text);
808 MonoStringBuilder *sb = mono_string_builder_new (len);
809 mono_string_utf8_to_builder (sb, text);
816 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
822 for (len = 0; text [len] != 0; ++len);
824 if (len > mono_string_builder_capacity (sb))
825 len = mono_string_builder_capacity (sb);
827 mono_string_utf16_to_builder_copy (sb, text, len);
831 * mono_string_builder_to_utf8:
832 * @sb: the string builder
834 * Converts to utf8 the contents of the MonoStringBuilder.
836 * Returns: a utf8 string with the contents of the StringBuilder.
838 * The return value must be released with g_free.
841 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
843 GError *error = NULL;
849 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
851 guint str_len = mono_string_builder_string_length (sb);
853 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
856 g_error_free (error);
858 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
861 guint len = mono_string_builder_capacity (sb) + 1;
862 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
863 g_assert (str_len < len);
864 memcpy (res, tmp, str_len * sizeof (gchar));
875 * mono_string_builder_to_utf16:
876 * @sb: the string builder
878 * Converts to utf16 the contents of the MonoStringBuilder.
880 * Returns: a utf16 string with the contents of the StringBuilder.
882 * The return value must not be freed.
885 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
890 g_assert (sb->chunkChars);
892 guint len = mono_string_builder_capacity (sb);
897 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
903 MonoStringBuilder* chunk = sb;
905 if (chunk->chunkLength > 0) {
906 // Check that we will not overrun our boundaries.
907 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
909 if (chunk->chunkLength <= len) {
910 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
912 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
915 len -= chunk->chunkLength;
917 chunk = chunk->chunkPrevious;
918 } while (chunk != NULL);
924 mono_string_to_lpstr (MonoString *s)
929 GError *error = NULL;
935 as = CoTaskMemAlloc (1);
940 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
942 MonoException *exc = mono_get_exception_argument ("string", error->message);
943 g_error_free (error);
944 mono_raise_exception(exc);
947 as = CoTaskMemAlloc (len + 1);
948 memcpy (as, tmp, len + 1);
953 return mono_string_to_utf8 (s);
958 mono_string_to_ansibstr (MonoString *string_obj)
960 g_error ("UnmanagedMarshal.BStr is not implemented.");
965 * mono_string_to_byvalstr:
966 * @dst: Where to store the null-terminated utf8 decoded string.
967 * @src: the MonoString to copy.
968 * @size: the maximum number of bytes to copy.
970 * Copies the MonoString pointed to by @src as a utf8 string
971 * into @dst, it copies at most @size bytes into the destination.
974 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
979 g_assert (dst != NULL);
982 memset (dst, 0, size);
986 s = mono_string_to_utf8 (src);
987 len = MIN (size, strlen (s));
990 memcpy (dst, s, len);
995 * mono_string_to_byvalwstr:
996 * @dst: Where to store the null-terminated utf16 decoded string.
997 * @src: the MonoString to copy.
998 * @size: the maximum number of bytes to copy.
1000 * Copies the MonoString pointed to by @src as a utf16 string into
1001 * @dst, it copies at most @size bytes into the destination (including
1002 * a terminating 16-bit zero terminator).
1005 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1009 g_assert (dst != NULL);
1010 g_assert (size > 1);
1013 memset (dst, 0, size * 2);
1017 len = MIN (size, (mono_string_length (src)));
1018 memcpy (dst, mono_string_chars (src), size * 2);
1019 if (size <= mono_string_length (src))
1021 *((gunichar2 *) dst + len) = 0;
1025 mono_string_new_len_wrapper (const char *text, guint length)
1027 return mono_string_new_len (mono_domain_get (), text, length);
1033 * mono_mb_emit_exception_marshal_directive:
1035 * This function assumes ownership of MSG, which should be malloc-ed.
1038 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1043 s = mono_image_strdup (mb->method->klass->image, msg);
1048 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1051 #endif /* !DISABLE_JIT */
1054 mono_type_to_ldind (MonoType *type)
1060 switch (type->type) {
1062 return CEE_LDIND_I1;
1064 case MONO_TYPE_BOOLEAN:
1065 return CEE_LDIND_U1;
1067 return CEE_LDIND_I2;
1069 case MONO_TYPE_CHAR:
1070 return CEE_LDIND_U2;
1072 return CEE_LDIND_I4;
1074 return CEE_LDIND_U4;
1078 case MONO_TYPE_FNPTR:
1080 case MONO_TYPE_CLASS:
1081 case MONO_TYPE_STRING:
1082 case MONO_TYPE_OBJECT:
1083 case MONO_TYPE_SZARRAY:
1084 case MONO_TYPE_ARRAY:
1085 return CEE_LDIND_REF;
1088 return CEE_LDIND_I8;
1090 return CEE_LDIND_R4;
1092 return CEE_LDIND_R8;
1093 case MONO_TYPE_VALUETYPE:
1094 if (type->data.klass->enumtype) {
1095 type = mono_class_enum_basetype (type->data.klass);
1099 case MONO_TYPE_TYPEDBYREF:
1101 case MONO_TYPE_GENERICINST:
1102 type = &type->data.generic_class->container_class->byval_arg;
1105 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1111 mono_type_to_stind (MonoType *type)
1117 switch (type->type) {
1120 case MONO_TYPE_BOOLEAN:
1121 return CEE_STIND_I1;
1124 case MONO_TYPE_CHAR:
1125 return CEE_STIND_I2;
1128 return CEE_STIND_I4;
1132 case MONO_TYPE_FNPTR:
1134 case MONO_TYPE_CLASS:
1135 case MONO_TYPE_STRING:
1136 case MONO_TYPE_OBJECT:
1137 case MONO_TYPE_SZARRAY:
1138 case MONO_TYPE_ARRAY:
1139 return CEE_STIND_REF;
1142 return CEE_STIND_I8;
1144 return CEE_STIND_R4;
1146 return CEE_STIND_R8;
1147 case MONO_TYPE_VALUETYPE:
1148 if (type->data.klass->enumtype) {
1149 type = mono_class_enum_basetype (type->data.klass);
1153 case MONO_TYPE_TYPEDBYREF:
1155 case MONO_TYPE_GENERICINST:
1156 type = &type->data.generic_class->container_class->byval_arg;
1159 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1167 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1170 case MONO_MARSHAL_CONV_BOOL_I4:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I4);
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_BOOL_VARIANTBOOL:
1183 mono_mb_emit_ldloc (mb, 1);
1184 mono_mb_emit_ldloc (mb, 0);
1185 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1186 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1187 mono_mb_emit_byte (mb, 3);
1188 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1189 mono_mb_emit_byte (mb, CEE_BR_S);
1190 mono_mb_emit_byte (mb, 1);
1191 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1192 mono_mb_emit_byte (mb, CEE_STIND_I1);
1194 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1195 MonoClass *eklass = NULL;
1198 if (type->type == MONO_TYPE_SZARRAY) {
1199 eklass = type->data.klass;
1201 g_assert_not_reached ();
1204 esize = mono_class_native_size (eklass, NULL);
1206 /* create a new array */
1207 mono_mb_emit_ldloc (mb, 1);
1208 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1209 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1210 mono_mb_emit_byte (mb, CEE_STIND_I);
1212 if (eklass->blittable) {
1213 /* copy the elements */
1214 mono_mb_emit_ldloc (mb, 1);
1215 mono_mb_emit_byte (mb, CEE_LDIND_I);
1216 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1217 mono_mb_emit_byte (mb, CEE_ADD);
1218 mono_mb_emit_ldloc (mb, 0);
1219 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1220 mono_mb_emit_byte (mb, CEE_PREFIX1);
1221 mono_mb_emit_byte (mb, CEE_CPBLK);
1224 int array_var, src_var, dst_var, index_var;
1225 guint32 label2, label3;
1227 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1228 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1232 mono_mb_emit_ldloc (mb, 1);
1233 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1234 mono_mb_emit_stloc (mb, array_var);
1236 /* save the old src pointer */
1237 mono_mb_emit_ldloc (mb, 0);
1238 mono_mb_emit_stloc (mb, src_var);
1239 /* save the old dst pointer */
1240 mono_mb_emit_ldloc (mb, 1);
1241 mono_mb_emit_stloc (mb, dst_var);
1243 /* Emit marshalling loop */
1244 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1245 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1246 mono_mb_emit_stloc (mb, index_var);
1249 label2 = mono_mb_get_label (mb);
1250 mono_mb_emit_ldloc (mb, index_var);
1251 mono_mb_emit_ldloc (mb, array_var);
1252 mono_mb_emit_byte (mb, CEE_LDLEN);
1253 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1255 /* src is already set */
1258 mono_mb_emit_ldloc (mb, array_var);
1259 mono_mb_emit_ldloc (mb, index_var);
1260 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1261 mono_mb_emit_stloc (mb, 1);
1263 /* Do the conversion */
1264 emit_struct_conv (mb, eklass, TRUE);
1267 mono_mb_emit_add_to_local (mb, index_var, 1);
1269 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1271 mono_mb_patch_branch (mb, label3);
1273 /* restore the old src pointer */
1274 mono_mb_emit_ldloc (mb, src_var);
1275 mono_mb_emit_stloc (mb, 0);
1276 /* restore the old dst pointer */
1277 mono_mb_emit_ldloc (mb, dst_var);
1278 mono_mb_emit_stloc (mb, 1);
1282 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1283 MonoClass *eclass = mono_defaults.char_class;
1285 /* create a new array */
1286 mono_mb_emit_ldloc (mb, 1);
1287 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1288 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1289 mono_mb_emit_byte (mb, CEE_STIND_REF);
1291 mono_mb_emit_ldloc (mb, 1);
1292 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1293 mono_mb_emit_ldloc (mb, 0);
1294 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1295 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1298 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1299 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1300 mono_mb_emit_ldloc (mb, 1);
1301 mono_mb_emit_ldloc (mb, 0);
1302 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1303 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_ldloc (mb, 0);
1307 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1309 mono_mb_emit_byte (mb, CEE_STIND_REF);
1311 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1312 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1316 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1318 mono_mb_emit_ldloc (mb, 1);
1319 mono_mb_emit_ldloc (mb, 0);
1320 mono_mb_emit_icall (mb, mono_string_from_utf16);
1322 mono_mb_emit_byte (mb, CEE_STIND_REF);
1324 case MONO_MARSHAL_CONV_STR_LPTSTR:
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_ldloc (mb, 0);
1327 mono_mb_emit_byte (mb, CEE_LDIND_I);
1329 mono_mb_emit_icall (mb, mono_string_from_utf16);
1331 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1333 mono_mb_emit_byte (mb, CEE_STIND_REF);
1335 case MONO_MARSHAL_CONV_STR_LPSTR:
1336 mono_mb_emit_ldloc (mb, 1);
1337 mono_mb_emit_ldloc (mb, 0);
1338 mono_mb_emit_byte (mb, CEE_LDIND_I);
1339 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1340 mono_mb_emit_byte (mb, CEE_STIND_REF);
1342 case MONO_MARSHAL_CONV_STR_LPWSTR:
1343 mono_mb_emit_ldloc (mb, 1);
1344 mono_mb_emit_ldloc (mb, 0);
1345 mono_mb_emit_byte (mb, CEE_LDIND_I);
1346 mono_mb_emit_icall (mb, mono_string_from_utf16);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1350 MonoClass *klass = mono_class_from_mono_type (type);
1351 int src_var, dst_var;
1353 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1354 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1356 /* *dst = new object */
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1359 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1360 mono_mb_emit_byte (mb, CEE_STIND_REF);
1362 /* save the old src pointer */
1363 mono_mb_emit_ldloc (mb, 0);
1364 mono_mb_emit_stloc (mb, src_var);
1365 /* save the old dst pointer */
1366 mono_mb_emit_ldloc (mb, 1);
1367 mono_mb_emit_stloc (mb, dst_var);
1369 /* dst = pointer to newly created object data */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_I);
1372 mono_mb_emit_icon (mb, sizeof (MonoObject));
1373 mono_mb_emit_byte (mb, CEE_ADD);
1374 mono_mb_emit_stloc (mb, 1);
1376 emit_struct_conv (mb, klass, TRUE);
1378 /* restore the old src pointer */
1379 mono_mb_emit_ldloc (mb, src_var);
1380 mono_mb_emit_stloc (mb, 0);
1381 /* restore the old dst pointer */
1382 mono_mb_emit_ldloc (mb, dst_var);
1383 mono_mb_emit_stloc (mb, 1);
1386 case MONO_MARSHAL_CONV_DEL_FTN: {
1387 MonoClass *klass = mono_class_from_mono_type (type);
1389 mono_mb_emit_ldloc (mb, 1);
1390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1391 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1392 mono_mb_emit_ldloc (mb, 0);
1393 mono_mb_emit_byte (mb, CEE_LDIND_I);
1394 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1395 mono_mb_emit_byte (mb, CEE_STIND_REF);
1398 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1399 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1403 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1404 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1405 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1406 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1408 #endif /* DISABLE_COM */
1410 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1412 * Passing SafeHandles as ref does not allow the unmanaged code
1413 * to change the SafeHandle value. If the value is changed,
1414 * we should issue a diagnostic exception (NotSupportedException)
1415 * that informs the user that changes to handles in unmanaged code
1418 * Since we currently have no access to the original
1419 * SafeHandle that was used during the marshalling,
1420 * for now we just ignore this, and ignore/discard any
1421 * changes that might have happened to the handle.
1426 case MONO_MARSHAL_CONV_HANDLEREF: {
1428 * Passing HandleRefs in a struct that is ref()ed does not
1429 * copy the values back to the HandleRef
1434 case MONO_MARSHAL_CONV_STR_BSTR:
1435 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1436 case MONO_MARSHAL_CONV_STR_TBSTR:
1437 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1439 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1441 mono_mb_emit_exception_marshal_directive (mb, msg);
1448 conv_to_icall (MonoMarshalConv conv)
1451 case MONO_MARSHAL_CONV_STR_LPWSTR:
1452 return mono_marshal_string_to_utf16;
1453 case MONO_MARSHAL_CONV_LPWSTR_STR:
1454 return mono_string_from_utf16;
1455 case MONO_MARSHAL_CONV_LPTSTR_STR:
1456 return mono_string_new_wrapper;
1457 case MONO_MARSHAL_CONV_LPSTR_STR:
1458 return mono_string_new_wrapper;
1459 case MONO_MARSHAL_CONV_STR_LPTSTR:
1461 return mono_marshal_string_to_utf16;
1463 return mono_string_to_lpstr;
1465 case MONO_MARSHAL_CONV_STR_LPSTR:
1466 return mono_string_to_lpstr;
1467 case MONO_MARSHAL_CONV_STR_BSTR:
1468 return mono_string_to_bstr;
1469 case MONO_MARSHAL_CONV_BSTR_STR:
1470 return mono_string_from_bstr;
1471 case MONO_MARSHAL_CONV_STR_TBSTR:
1472 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1473 return mono_string_to_ansibstr;
1474 case MONO_MARSHAL_CONV_SB_LPSTR:
1475 return mono_string_builder_to_utf8;
1476 case MONO_MARSHAL_CONV_SB_LPTSTR:
1478 return mono_string_builder_to_utf16;
1480 return mono_string_builder_to_utf8;
1482 case MONO_MARSHAL_CONV_SB_LPWSTR:
1483 return mono_string_builder_to_utf16;
1484 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1485 return mono_array_to_savearray;
1486 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1487 return mono_array_to_lparray;
1488 case MONO_MARSHAL_FREE_LPARRAY:
1489 return mono_free_lparray;
1490 case MONO_MARSHAL_CONV_DEL_FTN:
1491 return mono_delegate_to_ftnptr;
1492 case MONO_MARSHAL_CONV_FTN_DEL:
1493 return mono_ftnptr_to_delegate;
1494 case MONO_MARSHAL_CONV_LPSTR_SB:
1495 return mono_string_utf8_to_builder;
1496 case MONO_MARSHAL_CONV_LPTSTR_SB:
1498 return mono_string_utf16_to_builder;
1500 return mono_string_utf8_to_builder;
1502 case MONO_MARSHAL_CONV_LPWSTR_SB:
1503 return mono_string_utf16_to_builder;
1504 case MONO_MARSHAL_FREE_ARRAY:
1505 return mono_marshal_free_array;
1506 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1507 return mono_string_to_byvalstr;
1508 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1509 return mono_string_to_byvalwstr;
1511 g_assert_not_reached ();
1518 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1523 case MONO_MARSHAL_CONV_BOOL_I4:
1524 mono_mb_emit_ldloc (mb, 1);
1525 mono_mb_emit_ldloc (mb, 0);
1526 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1527 mono_mb_emit_byte (mb, CEE_STIND_I4);
1529 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1533 mono_mb_emit_byte (mb, CEE_NEG);
1534 mono_mb_emit_byte (mb, CEE_STIND_I2);
1536 case MONO_MARSHAL_CONV_STR_LPWSTR:
1537 case MONO_MARSHAL_CONV_STR_LPSTR:
1538 case MONO_MARSHAL_CONV_STR_LPTSTR:
1539 case MONO_MARSHAL_CONV_STR_BSTR:
1540 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1541 case MONO_MARSHAL_CONV_STR_TBSTR: {
1544 /* free space if free == true */
1545 mono_mb_emit_ldloc (mb, 2);
1546 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_byte (mb, CEE_LDIND_I);
1549 mono_mb_emit_icall (mb, g_free);
1550 mono_mb_patch_short_branch (mb, pos);
1552 mono_mb_emit_ldloc (mb, 1);
1553 mono_mb_emit_ldloc (mb, 0);
1554 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1555 mono_mb_emit_icall (mb, conv_to_icall (conv));
1556 mono_mb_emit_byte (mb, CEE_STIND_I);
1559 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1560 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1561 case MONO_MARSHAL_CONV_DEL_FTN:
1562 mono_mb_emit_ldloc (mb, 1);
1563 mono_mb_emit_ldloc (mb, 0);
1564 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1565 mono_mb_emit_icall (mb, conv_to_icall (conv));
1566 mono_mb_emit_byte (mb, CEE_STIND_I);
1568 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1569 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1572 mono_mb_emit_ldloc (mb, 1); /* dst */
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1575 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1576 mono_mb_emit_icall (mb, conv_to_icall (conv));
1579 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1580 MonoClass *eklass = NULL;
1583 if (type->type == MONO_TYPE_SZARRAY) {
1584 eklass = type->data.klass;
1586 g_assert_not_reached ();
1589 if (eklass->valuetype)
1590 esize = mono_class_native_size (eklass, NULL);
1592 esize = sizeof (gpointer);
1594 mono_mb_emit_ldloc (mb, 0);
1595 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1596 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1598 if (eklass->blittable) {
1599 mono_mb_emit_ldloc (mb, 1);
1600 mono_mb_emit_ldloc (mb, 0);
1601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1602 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1603 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1604 mono_mb_emit_byte (mb, CEE_PREFIX1);
1605 mono_mb_emit_byte (mb, CEE_CPBLK);
1607 int array_var, src_var, dst_var, index_var;
1608 guint32 label2, label3;
1610 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1611 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1612 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1615 mono_mb_emit_ldloc (mb, 0);
1616 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1617 mono_mb_emit_stloc (mb, array_var);
1619 /* save the old src pointer */
1620 mono_mb_emit_ldloc (mb, 0);
1621 mono_mb_emit_stloc (mb, src_var);
1622 /* save the old dst pointer */
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_stloc (mb, dst_var);
1626 /* Emit marshalling loop */
1627 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1628 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1629 mono_mb_emit_stloc (mb, index_var);
1632 label2 = mono_mb_get_label (mb);
1633 mono_mb_emit_ldloc (mb, index_var);
1634 mono_mb_emit_ldloc (mb, array_var);
1635 mono_mb_emit_byte (mb, CEE_LDLEN);
1636 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1639 mono_mb_emit_ldloc (mb, array_var);
1640 mono_mb_emit_ldloc (mb, index_var);
1641 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1642 mono_mb_emit_stloc (mb, 0);
1644 /* dst is already set */
1646 /* Do the conversion */
1647 emit_struct_conv (mb, eklass, FALSE);
1650 mono_mb_emit_add_to_local (mb, index_var, 1);
1652 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1654 mono_mb_patch_branch (mb, label3);
1656 /* restore the old src pointer */
1657 mono_mb_emit_ldloc (mb, src_var);
1658 mono_mb_emit_stloc (mb, 0);
1659 /* restore the old dst pointer */
1660 mono_mb_emit_ldloc (mb, dst_var);
1661 mono_mb_emit_stloc (mb, 1);
1664 mono_mb_patch_branch (mb, pos);
1667 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1668 mono_mb_emit_ldloc (mb, 0);
1669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1670 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1672 mono_mb_emit_ldloc (mb, 1);
1673 mono_mb_emit_ldloc (mb, 0);
1674 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1675 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1676 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1677 mono_mb_patch_short_branch (mb, pos);
1680 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1681 int src_var, dst_var;
1683 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1684 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_I);
1688 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1690 /* save the old src pointer */
1691 mono_mb_emit_ldloc (mb, 0);
1692 mono_mb_emit_stloc (mb, src_var);
1693 /* save the old dst pointer */
1694 mono_mb_emit_ldloc (mb, 1);
1695 mono_mb_emit_stloc (mb, dst_var);
1697 /* src = pointer to object data */
1698 mono_mb_emit_ldloc (mb, 0);
1699 mono_mb_emit_byte (mb, CEE_LDIND_I);
1700 mono_mb_emit_icon (mb, sizeof (MonoObject));
1701 mono_mb_emit_byte (mb, CEE_ADD);
1702 mono_mb_emit_stloc (mb, 0);
1704 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1706 /* restore the old src pointer */
1707 mono_mb_emit_ldloc (mb, src_var);
1708 mono_mb_emit_stloc (mb, 0);
1709 /* restore the old dst pointer */
1710 mono_mb_emit_ldloc (mb, dst_var);
1711 mono_mb_emit_stloc (mb, 1);
1713 mono_mb_patch_branch (mb, pos);
1718 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1719 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1720 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1721 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1723 #endif /* DISABLE_COM */
1725 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1728 mono_mb_emit_ldloc (mb, 0);
1729 mono_mb_emit_byte (mb, CEE_LDIND_I);
1730 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1731 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1732 mono_mb_patch_branch (mb, pos);
1734 /* Pull the handle field from SafeHandle */
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_byte (mb, CEE_LDIND_I);
1738 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 mono_mb_emit_byte (mb, CEE_STIND_I);
1744 case MONO_MARSHAL_CONV_HANDLEREF: {
1745 mono_mb_emit_ldloc (mb, 1);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1748 mono_mb_emit_byte (mb, CEE_ADD);
1749 mono_mb_emit_byte (mb, CEE_LDIND_I);
1750 mono_mb_emit_byte (mb, CEE_STIND_I);
1755 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1756 MonoException *exc = mono_get_exception_not_implemented (msg);
1757 g_warning ("%s", msg);
1759 mono_raise_exception (exc);
1765 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1766 MonoMarshalNative string_encoding)
1768 MonoMarshalType *info;
1772 emit_struct_conv(mb, klass->parent, to_object);
1774 info = mono_marshal_load_type_info (klass);
1776 if (info->native_size == 0)
1779 if (klass->blittable) {
1780 int msize = mono_class_value_size (klass, NULL);
1781 g_assert (msize == info->native_size);
1782 mono_mb_emit_ldloc (mb, 1);
1783 mono_mb_emit_ldloc (mb, 0);
1784 mono_mb_emit_icon (mb, msize);
1785 mono_mb_emit_byte (mb, CEE_PREFIX1);
1786 mono_mb_emit_byte (mb, CEE_CPBLK);
1788 mono_mb_emit_add_to_local (mb, 0, msize);
1789 mono_mb_emit_add_to_local (mb, 1, msize);
1793 if (klass != mono_defaults.safehandle_class) {
1794 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1795 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1796 mono_type_full_name (&klass->byval_arg));
1797 mono_mb_emit_exception_marshal_directive (mb, msg);
1802 for (i = 0; i < info->num_fields; i++) {
1803 MonoMarshalNative ntype;
1804 MonoMarshalConv conv;
1805 MonoType *ftype = info->fields [i].field->type;
1808 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1810 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1813 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1816 msize = klass->instance_size - info->fields [i].field->offset;
1817 usize = info->native_size - info->fields [i].offset;
1819 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1820 usize = info->fields [i + 1].offset - info->fields [i].offset;
1823 if (klass != mono_defaults.safehandle_class){
1825 * FIXME: Should really check for usize==0 and msize>0, but we apply
1826 * the layout to the managed structure as well.
1829 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1830 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1831 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1832 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1833 "reference field at the same offset as another field.",
1834 mono_type_full_name (&klass->byval_arg));
1839 case MONO_MARSHAL_CONV_NONE: {
1842 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1843 ftype->type == MONO_TYPE_U) {
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, CEE_LDIND_I);
1847 mono_mb_emit_byte (mb, CEE_STIND_I);
1858 case MONO_TYPE_BOOLEAN:
1861 case MONO_TYPE_CHAR:
1867 mono_mb_emit_ldloc (mb, 1);
1868 mono_mb_emit_ldloc (mb, 0);
1869 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1871 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1872 mono_mb_emit_byte (mb, CEE_STIND_I2);
1874 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1875 mono_mb_emit_byte (mb, CEE_STIND_I1);
1878 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1879 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1882 case MONO_TYPE_VALUETYPE: {
1883 int src_var, dst_var;
1885 if (ftype->data.klass->enumtype) {
1886 ftype = mono_class_enum_basetype (ftype->data.klass);
1890 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1891 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1893 /* save the old src pointer */
1894 mono_mb_emit_ldloc (mb, 0);
1895 mono_mb_emit_stloc (mb, src_var);
1896 /* save the old dst pointer */
1897 mono_mb_emit_ldloc (mb, 1);
1898 mono_mb_emit_stloc (mb, dst_var);
1900 emit_struct_conv (mb, ftype->data.klass, to_object);
1902 /* restore the old src pointer */
1903 mono_mb_emit_ldloc (mb, src_var);
1904 mono_mb_emit_stloc (mb, 0);
1905 /* restore the old dst pointer */
1906 mono_mb_emit_ldloc (mb, dst_var);
1907 mono_mb_emit_stloc (mb, 1);
1910 case MONO_TYPE_OBJECT: {
1913 static MonoMethod *variant_clear = NULL;
1914 static MonoMethod *get_object_for_native_variant = NULL;
1917 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1918 if (!get_object_for_native_variant)
1919 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1920 mono_mb_emit_ldloc (mb, 1);
1921 mono_mb_emit_ldloc (mb, 0);
1922 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1923 mono_mb_emit_byte (mb, CEE_STIND_REF);
1925 mono_mb_emit_ldloc (mb, 0);
1926 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1929 static MonoMethod *get_native_variant_for_object = NULL;
1931 if (!get_native_variant_for_object)
1932 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1936 mono_mb_emit_ldloc (mb, 1);
1937 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1940 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1941 mono_mb_emit_exception_marshal_directive (mb, msg);
1947 g_warning ("marshaling type %02x not implemented", ftype->type);
1948 g_assert_not_reached ();
1953 int src_var, dst_var;
1955 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1956 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1958 /* save the old src pointer */
1959 mono_mb_emit_ldloc (mb, 0);
1960 mono_mb_emit_stloc (mb, src_var);
1961 /* save the old dst pointer */
1962 mono_mb_emit_ldloc (mb, 1);
1963 mono_mb_emit_stloc (mb, dst_var);
1966 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1968 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1970 /* restore the old src pointer */
1971 mono_mb_emit_ldloc (mb, src_var);
1972 mono_mb_emit_stloc (mb, 0);
1973 /* restore the old dst pointer */
1974 mono_mb_emit_ldloc (mb, dst_var);
1975 mono_mb_emit_stloc (mb, 1);
1980 mono_mb_emit_add_to_local (mb, 0, usize);
1981 mono_mb_emit_add_to_local (mb, 1, msize);
1983 mono_mb_emit_add_to_local (mb, 0, msize);
1984 mono_mb_emit_add_to_local (mb, 1, usize);
1990 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1992 emit_struct_conv_full (mb, klass, to_object, -1);
1996 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1998 /* Call DestroyStructure */
1999 /* FIXME: Only do this if needed */
2000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2001 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2002 mono_mb_emit_ldloc (mb, struct_var);
2003 mono_mb_emit_icall (mb, mono_struct_delete_old);
2007 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2009 int pos_noabort, pos_noex;
2011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2012 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2013 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2014 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2016 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2017 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2019 mono_mb_emit_icall (mb, checkpoint_func);
2020 /* Throw the exception returned by the checkpoint function, if any */
2021 mono_mb_emit_byte (mb, CEE_DUP);
2022 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2023 mono_mb_emit_byte (mb, CEE_THROW);
2024 mono_mb_patch_branch (mb, pos_noex);
2025 mono_mb_emit_byte (mb, CEE_POP);
2027 mono_mb_patch_branch (mb, pos_noabort);
2031 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2033 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2036 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2040 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2042 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2046 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2048 emit_thread_interrupt_checkpoint (mb);
2052 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2054 emit_thread_force_interrupt_checkpoint (mb);
2057 #endif /* DISABLE_JIT */
2059 static MonoAsyncResult *
2060 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2062 MonoMulticastDelegate *mcast_delegate;
2066 g_assert (delegate);
2067 mcast_delegate = (MonoMulticastDelegate *) delegate;
2068 if (mcast_delegate->delegates != NULL)
2069 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2071 #ifndef DISABLE_REMOTING
2072 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2074 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2075 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2077 /* If the target is a proxy, make a direct call. Is proxy's work
2078 // to make the call asynchronous.
2080 MonoMethodMessage *msg;
2081 MonoDelegate *async_callback;
2083 MonoAsyncResult *ares;
2085 MonoArray *out_args;
2086 method = delegate->method;
2088 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2089 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2090 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2091 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2092 MONO_OBJECT_SETREF (msg, async_result, ares);
2093 msg->call_type = CallType_BeginInvoke;
2096 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2098 mono_raise_exception ((MonoException *) exc);
2104 klass = delegate->object.vtable->klass;
2106 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2108 method = mono_get_delegate_invoke (klass);
2111 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2117 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2119 int i, params_var, tmp_var;
2121 /* allocate local (pointer) *params[] */
2122 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2123 /* allocate local (pointer) tmp */
2124 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2126 /* alloate space on stack to store an array of pointers to the arguments */
2127 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2128 mono_mb_emit_byte (mb, CEE_PREFIX1);
2129 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2130 mono_mb_emit_stloc (mb, params_var);
2133 mono_mb_emit_ldloc (mb, params_var);
2134 mono_mb_emit_stloc (mb, tmp_var);
2136 if (save_this && sig->hasthis) {
2137 mono_mb_emit_ldloc (mb, tmp_var);
2138 mono_mb_emit_ldarg_addr (mb, 0);
2139 mono_mb_emit_byte (mb, CEE_STIND_I);
2140 /* tmp = tmp + sizeof (gpointer) */
2141 if (sig->param_count)
2142 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2146 for (i = 0; i < sig->param_count; i++) {
2147 mono_mb_emit_ldloc (mb, tmp_var);
2148 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2149 mono_mb_emit_byte (mb, CEE_STIND_I);
2150 /* tmp = tmp + sizeof (gpointer) */
2151 if (i < (sig->param_count - 1))
2152 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2158 #endif /* DISABLE_JIT */
2161 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2165 GString *res = g_string_new ("");
2168 g_string_append (res, prefix);
2169 g_string_append_c (res, '_');
2172 mono_type_get_desc (res, sig->ret, FALSE);
2175 g_string_append (res, "__this__");
2177 for (i = 0; i < sig->param_count; ++i) {
2178 g_string_append_c (res, '_');
2179 mono_type_get_desc (res, sig->params [i], FALSE);
2182 g_string_free (res, FALSE);
2187 * mono_marshal_get_string_encoding:
2189 * Return the string encoding which should be used for a given parameter.
2191 static MonoMarshalNative
2192 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2194 /* First try the parameter marshal info */
2196 if (spec->native == MONO_NATIVE_LPARRAY) {
2197 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2198 return spec->data.array_data.elem_type;
2201 return spec->native;
2205 return MONO_NATIVE_LPSTR;
2207 /* Then try the method level marshal info */
2208 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2209 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2210 return MONO_NATIVE_LPSTR;
2211 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2212 return MONO_NATIVE_LPWSTR;
2213 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2215 return MONO_NATIVE_LPWSTR;
2217 return MONO_NATIVE_LPSTR;
2220 return MONO_NATIVE_LPSTR;
2224 static MonoMarshalConv
2225 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2227 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2230 case MONO_NATIVE_LPWSTR:
2231 return MONO_MARSHAL_CONV_STR_LPWSTR;
2232 case MONO_NATIVE_LPSTR:
2233 case MONO_NATIVE_VBBYREFSTR:
2234 return MONO_MARSHAL_CONV_STR_LPSTR;
2235 case MONO_NATIVE_LPTSTR:
2236 return MONO_MARSHAL_CONV_STR_LPTSTR;
2237 case MONO_NATIVE_BSTR:
2238 return MONO_MARSHAL_CONV_STR_BSTR;
2244 static MonoMarshalConv
2245 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2247 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2250 case MONO_NATIVE_LPWSTR:
2251 return MONO_MARSHAL_CONV_SB_LPWSTR;
2253 case MONO_NATIVE_LPSTR:
2254 return MONO_MARSHAL_CONV_SB_LPSTR;
2256 case MONO_NATIVE_LPTSTR:
2257 return MONO_MARSHAL_CONV_SB_LPTSTR;
2264 static MonoMarshalConv
2265 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2267 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2272 case MONO_NATIVE_LPWSTR:
2274 return MONO_MARSHAL_CONV_LPWSTR_STR;
2275 case MONO_NATIVE_LPSTR:
2276 case MONO_NATIVE_VBBYREFSTR:
2277 return MONO_MARSHAL_CONV_LPSTR_STR;
2278 case MONO_NATIVE_LPTSTR:
2279 return MONO_MARSHAL_CONV_LPTSTR_STR;
2280 case MONO_NATIVE_BSTR:
2281 return MONO_MARSHAL_CONV_BSTR_STR;
2287 static MonoMarshalConv
2288 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2290 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2295 case MONO_NATIVE_LPWSTR:
2297 * mono_string_builder_to_utf16 does not allocate a
2298 * new buffer, so no need to free it.
2301 return MONO_MARSHAL_CONV_LPWSTR_SB;
2302 case MONO_NATIVE_LPSTR:
2303 return MONO_MARSHAL_CONV_LPSTR_SB;
2305 case MONO_NATIVE_LPTSTR:
2306 return MONO_MARSHAL_CONV_LPTSTR_SB;
2314 * Return whenever a field of a native structure or an array member needs to
2318 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2320 MonoMarshalNative encoding;
2323 case MONO_TYPE_VALUETYPE:
2324 /* FIXME: Optimize this */
2326 case MONO_TYPE_OBJECT:
2327 case MONO_TYPE_CLASS:
2328 if (t->data.klass == mono_defaults.stringbuilder_class) {
2330 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2334 case MONO_TYPE_STRING:
2335 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2336 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2343 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2346 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2349 mono_marshal_lock ();
2352 g_hash_table_new (hash_func, equal_func);
2353 mono_memory_barrier ();
2356 mono_marshal_unlock ();
2362 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2364 return get_cache (var, hash_func, equal_func);
2368 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2372 mono_marshal_lock ();
2373 res = g_hash_table_lookup (cache, key);
2374 mono_marshal_unlock ();
2381 * Create a MonoMethod from MB, set INFO as wrapper info.
2384 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2385 int max_stack, WrapperInfo *info)
2389 res = mono_mb_create_method (mb, sig, max_stack);
2391 mono_marshal_set_wrapper_info (res, info);
2395 /* Create the method from the builder and place it in the cache */
2397 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2398 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2399 int max_stack, WrapperInfo *info, gboolean *out_found)
2406 mono_marshal_lock ();
2407 res = g_hash_table_lookup (cache, key);
2408 mono_marshal_unlock ();
2411 newm = mono_mb_create_method (mb, sig, max_stack);
2412 mono_marshal_lock ();
2413 res = g_hash_table_lookup (cache, key);
2416 g_hash_table_insert (cache, key, res);
2418 mono_marshal_set_wrapper_info (res, info);
2420 mono_marshal_set_wrapper_info (res, key);
2421 mono_marshal_unlock ();
2425 mono_marshal_unlock ();
2426 mono_free_method (newm);
2434 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2435 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2438 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2442 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2445 int wrapper_type = wrapper->wrapper_type;
2448 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2451 switch (wrapper_type) {
2452 case MONO_WRAPPER_REMOTING_INVOKE:
2453 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2454 case MONO_WRAPPER_XDOMAIN_INVOKE:
2455 case MONO_WRAPPER_SYNCHRONIZED:
2456 case MONO_WRAPPER_UNBOX:
2457 res = mono_marshal_get_wrapper_info (wrapper);
2460 if (wrapper->is_inflated) {
2464 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2465 * contains an uninflated method.
2467 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2468 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2472 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2473 info = mono_marshal_get_wrapper_info (wrapper);
2474 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2475 return info->d.managed_to_native.method;
2478 case MONO_WRAPPER_RUNTIME_INVOKE:
2479 info = mono_marshal_get_wrapper_info (wrapper);
2480 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2481 return info->d.runtime_invoke.method;
2490 * mono_marshal_get_wrapper_info:
2492 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2493 * returned depends on the wrapper type. It is usually a method, a class, or a
2494 * WrapperInfo structure.
2497 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2499 g_assert (wrapper->wrapper_type);
2501 return mono_method_get_wrapper_data (wrapper, 1);
2505 * mono_marshal_set_wrapper_info:
2507 * Store an arbitrary pointer inside the wrapper which is retrievable by
2508 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2509 * wrapper (method->wrapper_type).
2512 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2516 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2519 datav = ((MonoMethodWrapper *)method)->method_data;
2524 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2528 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2529 info->subtype = subtype;
2534 * get_wrapper_target_class:
2536 * Return the class where a wrapper method should be placed.
2539 get_wrapper_target_class (MonoImage *image)
2546 * - can't put all wrappers into an mscorlib class, because they reference
2547 * metadata (signature) so they should be put into the same image as the
2548 * method they wrap, so they are unloaded together.
2549 * - putting them into a class with a type initalizer could cause the
2550 * initializer to be executed which can be a problem if the wrappers are
2552 * - putting them into an inflated class can cause problems if the the
2553 * class is deleted because it references an image which is unloaded.
2554 * To avoid these problems, we put the wrappers into the <Module> class of
2557 if (image_is_dynamic (image)) {
2558 klass = ((MonoDynamicImage*)image)->wrappers_type;
2560 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2561 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2569 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2570 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2574 * check_generic_wrapper_cache:
2576 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2577 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2578 * generic method definition.
2581 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2584 MonoMethod *inst, *def;
2585 MonoGenericContext *ctx;
2587 g_assert (orig_method->is_inflated);
2588 ctx = mono_method_get_context (orig_method);
2591 * Look for the instance
2593 res = mono_marshal_find_in_cache (cache, key);
2598 * Look for the definition
2600 def = mono_marshal_find_in_cache (cache, def_key);
2603 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2604 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2606 mono_memory_barrier ();
2607 mono_marshal_lock ();
2608 res = g_hash_table_lookup (cache, key);
2610 g_hash_table_insert (cache, key, inst);
2613 mono_marshal_unlock ();
2620 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2623 MonoMethod *inst, *res;
2626 * We use the same cache for the generic definition and the instances.
2628 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2629 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2630 mono_memory_barrier ();
2631 mono_marshal_lock ();
2632 res = g_hash_table_lookup (cache, key);
2634 g_hash_table_insert (cache, key, inst);
2637 mono_marshal_unlock ();
2642 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2646 MonoMethod *inst, *def;
2649 * Look for the instance
2651 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2656 * Look for the definition
2658 def = mono_marshal_find_in_cache (cache, def_method->klass);
2660 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2661 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2664 mono_memory_barrier ();
2665 mono_marshal_lock ();
2666 res = g_hash_table_lookup (cache, orig_method->klass);
2668 g_hash_table_insert (cache, orig_method->klass, inst);
2671 mono_marshal_unlock ();
2678 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2681 MonoMethod *inst, *res;
2684 * We use the same cache for the generic definition and the instances.
2686 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2687 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2689 mono_memory_barrier ();
2690 mono_marshal_lock ();
2691 res = g_hash_table_lookup (cache, orig_method->klass);
2693 g_hash_table_insert (cache, orig_method->klass, inst);
2696 mono_marshal_unlock ();
2701 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2703 MonoMethodSignature *sig;
2704 MonoMethodBuilder *mb;
2709 MonoGenericContext *ctx = NULL;
2710 MonoMethod *orig_method = NULL;
2712 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2713 !strcmp (method->name, "BeginInvoke"));
2716 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2718 if (method->is_inflated) {
2719 orig_method = method;
2720 ctx = &((MonoMethodInflated*)method)->context;
2721 method = ((MonoMethodInflated*)method)->declaring;
2724 sig = mono_signature_no_pinvoke (method);
2730 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2731 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2735 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2736 (GHashFunc)mono_signature_hash,
2737 (GCompareFunc)mono_metadata_signature_equal);
2738 if ((res = mono_marshal_find_in_cache (cache, sig)))
2742 g_assert (sig->hasthis);
2744 name = mono_signature_to_name (sig, "begin_invoke");
2746 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2748 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2752 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2754 mono_mb_emit_ldarg (mb, 0);
2755 mono_mb_emit_ldloc (mb, params_var);
2756 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2757 mono_mb_emit_byte (mb, CEE_RET);
2762 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2763 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2765 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2773 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2775 MonoDomain *domain = mono_domain_get ();
2776 MonoAsyncResult *ares;
2777 MonoMethod *method = NULL;
2778 MonoMethodSignature *sig;
2779 MonoMethodMessage *msg;
2780 MonoObject *res, *exc;
2781 MonoArray *out_args;
2784 g_assert (delegate);
2786 if (!delegate->method_info) {
2787 g_assert (delegate->method);
2788 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2791 if (!delegate->method_info || !delegate->method_info->method)
2792 g_assert_not_reached ();
2794 klass = delegate->object.vtable->klass;
2796 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2797 g_assert (method != NULL);
2799 sig = mono_signature_no_pinvoke (method);
2801 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2803 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2805 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."));
2809 if (ares->async_delegate != (MonoObject*)delegate) {
2810 mono_raise_exception (mono_get_exception_invalid_operation (
2811 "The IAsyncResult object provided does not match this delegate."));
2815 #ifndef DISABLE_REMOTING
2816 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2817 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2818 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2819 mono_message_init (domain, msg, delegate->method_info, NULL);
2820 msg->call_type = CallType_EndInvoke;
2821 MONO_OBJECT_SETREF (msg, async_result, ares);
2822 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2826 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2830 if (((MonoException*)exc)->stack_trace) {
2831 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2833 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2835 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2838 mono_raise_exception ((MonoException*)exc);
2841 mono_method_return_message_restore (method, params, out_args);
2848 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2850 MonoType *t = mono_type_get_underlying_type (return_type);
2852 if (return_type->byref)
2853 return_type = &mono_defaults.int_class->byval_arg;
2856 case MONO_TYPE_VOID:
2857 g_assert_not_reached ();
2860 case MONO_TYPE_STRING:
2861 case MONO_TYPE_CLASS:
2862 case MONO_TYPE_OBJECT:
2863 case MONO_TYPE_ARRAY:
2864 case MONO_TYPE_SZARRAY:
2868 case MONO_TYPE_BOOLEAN:
2871 case MONO_TYPE_CHAR:
2881 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2882 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2884 case MONO_TYPE_GENERICINST:
2885 if (!mono_type_generic_inst_is_valuetype (t))
2888 case MONO_TYPE_VALUETYPE: {
2889 MonoClass *klass = mono_class_from_mono_type (return_type);
2890 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2891 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2895 case MONO_TYPE_MVAR: {
2896 MonoClass *klass = mono_class_from_mono_type (return_type);
2897 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2901 g_warning ("type 0x%x not handled", return_type->type);
2902 g_assert_not_reached ();
2905 mono_mb_emit_byte (mb, CEE_RET);
2908 #endif /* DISABLE_JIT */
2911 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2913 MonoMethodSignature *sig;
2914 MonoMethodBuilder *mb;
2919 MonoGenericContext *ctx = NULL;
2920 MonoMethod *orig_method = NULL;
2922 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2923 !strcmp (method->name, "EndInvoke"));
2926 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2928 if (method->is_inflated) {
2929 orig_method = method;
2930 ctx = &((MonoMethodInflated*)method)->context;
2931 method = ((MonoMethodInflated*)method)->declaring;
2934 sig = mono_signature_no_pinvoke (method);
2940 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2941 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2945 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2946 (GHashFunc)mono_signature_hash,
2947 (GCompareFunc)mono_metadata_signature_equal);
2948 if ((res = mono_marshal_find_in_cache (cache, sig)))
2952 g_assert (sig->hasthis);
2954 name = mono_signature_to_name (sig, "end_invoke");
2956 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2958 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2962 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2964 mono_mb_emit_ldarg (mb, 0);
2965 mono_mb_emit_ldloc (mb, params_var);
2966 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2968 if (sig->ret->type == MONO_TYPE_VOID) {
2969 mono_mb_emit_byte (mb, CEE_POP);
2970 mono_mb_emit_byte (mb, CEE_RET);
2972 mono_mb_emit_restore_result (mb, sig->ret);
2977 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2978 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2980 res = mono_mb_create_and_cache (cache, sig,
2981 mb, sig, sig->param_count + 16);
2990 MonoMethodSignature *sig;
2992 } SignaturePointerPair;
2995 signature_pointer_pair_hash (gconstpointer data)
2997 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2999 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3003 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3005 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3006 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3010 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3012 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3014 return pair->pointer == user_data;
3018 free_signature_pointer_pair (SignaturePointerPair *pair)
3024 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3026 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3028 MonoMethodBuilder *mb;
3031 gpointer cache_key = NULL;
3032 SignaturePointerPair key;
3033 SignaturePointerPair *new_key;
3034 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3035 int pos0, pos1, pos2;
3037 MonoClass *target_class = NULL;
3038 gboolean closed_over_null = FALSE;
3039 MonoGenericContext *ctx = NULL;
3040 MonoGenericContainer *container = NULL;
3041 MonoMethod *orig_method = NULL;
3043 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3047 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3048 !strcmp (method->name, "Invoke"));
3050 invoke_sig = sig = mono_signature_no_pinvoke (method);
3053 * If the delegate target is null, and the target method is not static, a virtual
3054 * call is made to that method with the first delegate argument as this. This is
3055 * a non-documented .NET feature.
3058 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3059 if (target_method->is_inflated) {
3060 MonoType *target_type;
3062 g_assert (method->signature->hasthis);
3063 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3064 mono_method_get_context (method));
3065 target_class = mono_class_from_mono_type (target_type);
3067 target_class = target_method->klass;
3070 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3073 if (static_method_with_first_arg_bound) {
3074 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3075 g_assert (!callvirt);
3076 invoke_sig = mono_method_signature (target_method);
3080 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3082 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3083 orig_method = method;
3084 ctx = &((MonoMethodInflated*)method)->context;
3085 method = ((MonoMethodInflated*)method)->declaring;
3087 container = mono_method_get_generic_container (method);
3089 container = method->klass->generic_container;
3090 g_assert (container);
3092 invoke_sig = sig = mono_signature_no_pinvoke (method);
3099 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3100 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3103 cache_key = method->klass;
3104 } else if (static_method_with_first_arg_bound) {
3105 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3106 (GHashFunc)mono_signature_hash,
3107 (GCompareFunc)mono_metadata_signature_equal);
3109 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3111 res = mono_marshal_find_in_cache (cache, invoke_sig);
3114 cache_key = invoke_sig;
3115 } else if (callvirt) {
3116 GHashTable **cache_ptr;
3118 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3120 /* We need to cache the signature+method pair */
3121 mono_marshal_lock ();
3123 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3125 key.sig = invoke_sig;
3126 key.pointer = target_method;
3127 res = g_hash_table_lookup (cache, &key);
3128 mono_marshal_unlock ();
3132 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3133 (GHashFunc)mono_signature_hash,
3134 (GCompareFunc)mono_metadata_signature_equal);
3135 res = mono_marshal_find_in_cache (cache, sig);
3141 static_sig = signature_dup (method->klass->image, sig);
3142 static_sig->hasthis = 0;
3143 if (!static_method_with_first_arg_bound)
3144 invoke_sig = static_sig;
3146 if (static_method_with_first_arg_bound)
3147 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3148 else if (closed_over_null)
3149 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3151 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3153 name = mono_signature_to_name (invoke_sig, "invoke");
3155 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3157 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3161 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3163 /* allocate local 0 (object) */
3164 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3165 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3166 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3167 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3168 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3171 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3173 g_assert (sig->hasthis);
3176 * {type: sig->ret} res;
3177 * if (delegates == null) {
3178 * return this.<target> ( args .. );
3180 * int i = 0, len = this.delegates.Length;
3182 * res = this.delegates [i].Invoke ( args .. );
3183 * } while (++i < len);
3188 /* this wrapper can be used in unmanaged-managed transitions */
3189 emit_thread_interrupt_checkpoint (mb);
3191 /* delegates = this.delegates */
3192 mono_mb_emit_ldarg (mb, 0);
3193 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3194 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3195 mono_mb_emit_stloc (mb, local_delegates);
3198 /* if (delegates == null) */
3199 mono_mb_emit_ldloc (mb, local_delegates);
3200 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3202 /* return target.<target_method|method_ptr> ( args .. ); */
3204 /* target = d.target; */
3205 mono_mb_emit_ldarg (mb, 0);
3206 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3207 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3208 mono_mb_emit_stloc (mb, local_target);
3210 /*static methods with bound first arg can have null target and still be bound*/
3211 if (!static_method_with_first_arg_bound) {
3212 /* if target != null */
3213 mono_mb_emit_ldloc (mb, local_target);
3214 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3216 /* then call this->method_ptr nonstatic */
3219 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3221 mono_mb_emit_ldloc (mb, local_target);
3222 for (i = 0; i < sig->param_count; ++i)
3223 mono_mb_emit_ldarg (mb, i + 1);
3224 mono_mb_emit_ldarg (mb, 0);
3225 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3226 mono_mb_emit_byte (mb, CEE_LDIND_I );
3227 mono_mb_emit_op (mb, CEE_CALLI, sig);
3229 mono_mb_emit_byte (mb, CEE_RET);
3232 /* else [target == null] call this->method_ptr static */
3233 mono_mb_patch_branch (mb, pos0);
3237 if (!closed_over_null) {
3238 if (target_class->valuetype) {
3239 mono_mb_emit_ldarg (mb, 1);
3240 for (i = 1; i < sig->param_count; ++i)
3241 mono_mb_emit_ldarg (mb, i + 1);
3242 mono_mb_emit_op (mb, CEE_CALL, target_method);
3244 mono_mb_emit_ldarg (mb, 1);
3245 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3246 for (i = 1; i < sig->param_count; ++i)
3247 mono_mb_emit_ldarg (mb, i + 1);
3248 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3251 mono_mb_emit_byte (mb, CEE_LDNULL);
3252 for (i = 0; i < sig->param_count; ++i)
3253 mono_mb_emit_ldarg (mb, i + 1);
3254 mono_mb_emit_op (mb, CEE_CALL, target_method);
3257 if (static_method_with_first_arg_bound) {
3258 mono_mb_emit_ldloc (mb, local_target);
3259 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3260 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3262 for (i = 0; i < sig->param_count; ++i)
3263 mono_mb_emit_ldarg (mb, i + 1);
3264 mono_mb_emit_ldarg (mb, 0);
3265 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3266 mono_mb_emit_byte (mb, CEE_LDIND_I );
3267 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3270 mono_mb_emit_byte (mb, CEE_RET);
3272 /* else [delegates != null] */
3273 mono_mb_patch_branch (mb, pos2);
3275 /* len = delegates.Length; */
3276 mono_mb_emit_ldloc (mb, local_delegates);
3277 mono_mb_emit_byte (mb, CEE_LDLEN);
3278 mono_mb_emit_byte (mb, CEE_CONV_I4);
3279 mono_mb_emit_stloc (mb, local_len);
3282 mono_mb_emit_icon (mb, 0);
3283 mono_mb_emit_stloc (mb, local_i);
3285 pos1 = mono_mb_get_label (mb);
3287 /* d = delegates [i]; */
3288 mono_mb_emit_ldloc (mb, local_delegates);
3289 mono_mb_emit_ldloc (mb, local_i);
3290 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3291 mono_mb_emit_stloc (mb, local_d);
3293 /* res = d.Invoke ( args .. ); */
3294 mono_mb_emit_ldloc (mb, local_d);
3295 for (i = 0; i < sig->param_count; i++)
3296 mono_mb_emit_ldarg (mb, i + 1);
3298 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3301 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3302 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3305 mono_mb_emit_stloc (mb, local_res);
3308 mono_mb_emit_add_to_local (mb, local_i, 1);
3311 mono_mb_emit_ldloc (mb, local_i);
3312 mono_mb_emit_ldloc (mb, local_len);
3313 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3317 mono_mb_emit_ldloc (mb, local_res);
3318 mono_mb_emit_byte (mb, CEE_RET);
3320 mb->skip_visibility = 1;
3321 #endif /* DISABLE_JIT */
3326 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3327 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3328 } else if (callvirt) {
3329 new_key = g_new0 (SignaturePointerPair, 1);
3332 info = mono_wrapper_info_create (mb, subtype);
3334 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3338 info = mono_wrapper_info_create (mb, subtype);
3340 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3344 /* mono_method_print_code (res); */
3350 * the returned method invokes all methods in a multicast delegate.
3353 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3355 gboolean callvirt = FALSE;
3356 gboolean static_method_with_first_arg_bound = FALSE;
3357 MonoMethod *target_method = NULL;
3358 MonoMethodSignature *sig;
3360 sig = mono_signature_no_pinvoke (method);
3362 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3364 target_method = del->method;
3367 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3368 static_method_with_first_arg_bound = TRUE;
3369 target_method = del->method;
3372 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3376 * signature_dup_add_this:
3378 * Make a copy of @sig, adding an explicit this argument.
3380 static MonoMethodSignature*
3381 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3383 MonoMethodSignature *res;
3386 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3387 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3388 res->param_count = sig->param_count + 1;
3389 res->hasthis = FALSE;
3390 for (i = sig->param_count - 1; i >= 0; i --)
3391 res->params [i + 1] = sig->params [i];
3392 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3398 MonoMethodSignature *ctor_sig;
3399 MonoMethodSignature *sig;
3402 /* protected by the marshal lock, contains CtorSigPair pointers */
3403 static GSList *strsig_list = NULL;
3405 static MonoMethodSignature *
3406 lookup_string_ctor_signature (MonoMethodSignature *sig)
3408 MonoMethodSignature *callsig;
3412 mono_marshal_lock ();
3414 for (item = strsig_list; item; item = item->next) {
3416 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3417 * because it is lock-free.
3419 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3424 mono_marshal_unlock ();
3428 static MonoMethodSignature *
3429 add_string_ctor_signature (MonoMethod *method)
3431 MonoMethodSignature *callsig;
3434 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3435 callsig->ret = &mono_defaults.string_class->byval_arg;
3436 cs = g_new (CtorSigPair, 1);
3438 cs->ctor_sig = mono_method_signature (method);
3440 mono_marshal_lock ();
3441 strsig_list = g_slist_prepend (strsig_list, cs);
3442 mono_marshal_unlock ();
3447 * mono_marshal_get_string_ctor_signature:
3449 * Return the modified signature used by string ctors (they return the newly created
3452 MonoMethodSignature*
3453 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3455 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3457 sig = add_string_ctor_signature (method);
3463 get_runtime_invoke_type (MonoType *t, gboolean ret)
3466 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3468 /* Can't share this with 'I' as that needs another indirection */
3469 return &mono_defaults.int_class->this_arg;
3472 if (MONO_TYPE_IS_REFERENCE (t))
3473 return &mono_defaults.object_class->byval_arg;
3476 /* The result needs to be boxed */
3481 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3484 return &mono_defaults.sbyte_class->byval_arg;
3486 return &mono_defaults.int16_class->byval_arg;
3488 return &mono_defaults.int32_class->byval_arg;
3491 return &mono_defaults.int64_class->byval_arg;
3492 case MONO_TYPE_BOOLEAN:
3493 return &mono_defaults.byte_class->byval_arg;
3494 case MONO_TYPE_CHAR:
3495 return &mono_defaults.uint16_class->byval_arg;
3498 return &mono_defaults.int_class->byval_arg;
3499 case MONO_TYPE_VALUETYPE:
3500 if (t->data.klass->enumtype) {
3501 t = mono_class_enum_basetype (t->data.klass);
3511 * mono_marshal_get_runtime_invoke_sig:
3513 * Return a common signature used for sharing runtime invoke wrappers.
3515 static MonoMethodSignature*
3516 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3518 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3521 res->generic_param_count = 0;
3522 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3523 for (i = 0; i < res->param_count; ++i)
3524 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3530 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3532 /* Can't share wrappers which return a vtype since it needs to be boxed */
3533 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))
3536 return mono_metadata_signature_equal (sig1, sig2);
3544 * Emit the call to the wrapper method from a runtime invoke wrapper.
3547 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3548 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3550 gboolean virtual, gboolean need_direct_wrapper)
3552 static MonoString *string_dummy = NULL;
3554 int *tmp_nullable_locals;
3555 gboolean void_ret = FALSE;
3557 /* to make it work with our special string constructors */
3558 if (!string_dummy) {
3559 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3560 string_dummy = mono_string_new_wrapper ("dummy");
3564 g_assert (sig->hasthis);
3565 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3569 if (method->string_ctor) {
3570 if (mono_gc_is_moving ()) {
3571 mono_mb_emit_ptr (mb, &string_dummy);
3572 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3574 mono_mb_emit_ptr (mb, string_dummy);
3577 mono_mb_emit_ldarg (mb, 0);
3581 tmp_nullable_locals = g_new0 (int, sig->param_count);
3583 for (i = 0; i < sig->param_count; i++) {
3584 MonoType *t = sig->params [i];
3587 mono_mb_emit_ldarg (mb, 1);
3589 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3590 mono_mb_emit_byte (mb, CEE_ADD);
3594 mono_mb_emit_byte (mb, CEE_LDIND_I);
3595 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3596 * So to make this work we unbox it to a local variablee and push a reference to that.
3598 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3599 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3601 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3602 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3603 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3608 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3609 type = sig->params [i]->type;
3613 case MONO_TYPE_BOOLEAN:
3617 case MONO_TYPE_CHAR:
3626 mono_mb_emit_byte (mb, CEE_LDIND_I);
3627 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3629 case MONO_TYPE_STRING:
3630 case MONO_TYPE_CLASS:
3631 case MONO_TYPE_ARRAY:
3633 case MONO_TYPE_SZARRAY:
3634 case MONO_TYPE_OBJECT:
3635 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3637 case MONO_TYPE_GENERICINST:
3638 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3639 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3644 case MONO_TYPE_VALUETYPE:
3645 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3646 type = mono_class_enum_basetype (t->data.klass)->type;
3649 mono_mb_emit_byte (mb, CEE_LDIND_I);
3650 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3651 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3652 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3653 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3655 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3659 g_assert_not_reached ();
3664 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3665 } else if (need_direct_wrapper) {
3666 mono_mb_emit_op (mb, CEE_CALL, method);
3668 mono_mb_emit_ldarg (mb, 3);
3669 mono_mb_emit_calli (mb, callsig);
3672 if (sig->ret->byref) {
3674 g_assert_not_reached ();
3677 switch (sig->ret->type) {
3678 case MONO_TYPE_VOID:
3679 if (!method->string_ctor)
3682 case MONO_TYPE_BOOLEAN:
3683 case MONO_TYPE_CHAR:
3696 case MONO_TYPE_VALUETYPE:
3697 case MONO_TYPE_TYPEDBYREF:
3698 case MONO_TYPE_GENERICINST:
3699 /* box value types */
3700 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3702 case MONO_TYPE_STRING:
3703 case MONO_TYPE_CLASS:
3704 case MONO_TYPE_ARRAY:
3705 case MONO_TYPE_SZARRAY:
3706 case MONO_TYPE_OBJECT:
3710 /* The result is an IntPtr */
3711 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3714 g_assert_not_reached ();
3718 mono_mb_emit_stloc (mb, loc_res);
3720 /* Convert back nullable-byref arguments */
3721 for (i = 0; i < sig->param_count; i++) {
3722 MonoType *t = sig->params [i];
3725 * Box the result and put it back into the array, the caller will have
3726 * to obtain it from there.
3728 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3729 mono_mb_emit_ldarg (mb, 1);
3730 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3731 mono_mb_emit_byte (mb, CEE_ADD);
3733 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3734 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3736 mono_mb_emit_byte (mb, CEE_STIND_REF);
3740 g_free (tmp_nullable_locals);
3744 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3745 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3746 gboolean virtual, gboolean need_direct_wrapper)
3749 MonoExceptionClause *clause;
3750 int loc_res, loc_exc;
3752 /* The wrapper looks like this:
3758 * } catch (Exception e) {
3766 /* allocate local 0 (object) tmp */
3767 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3768 /* allocate local 1 (object) exc */
3769 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3771 /* *exc is assumed to be initialized to NULL by the caller */
3773 mono_mb_emit_byte (mb, CEE_LDARG_2);
3774 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3779 labels [1] = mono_mb_get_label (mb);
3780 emit_thread_force_interrupt_checkpoint (mb);
3781 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3783 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3785 /* Add a try clause around the call */
3786 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3787 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3788 clause->data.catch_class = mono_defaults.exception_class;
3789 clause->try_offset = labels [1];
3790 clause->try_len = mono_mb_get_label (mb) - labels [1];
3792 clause->handler_offset = mono_mb_get_label (mb);
3795 mono_mb_emit_stloc (mb, loc_exc);
3796 mono_mb_emit_byte (mb, CEE_LDARG_2);
3797 mono_mb_emit_ldloc (mb, loc_exc);
3798 mono_mb_emit_byte (mb, CEE_STIND_REF);
3800 mono_mb_emit_branch (mb, CEE_LEAVE);
3802 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3804 mono_mb_set_clauses (mb, 1, clause);
3806 mono_mb_patch_branch (mb, labels [2]);
3807 mono_mb_emit_ldloc (mb, loc_res);
3808 mono_mb_emit_byte (mb, CEE_RET);
3813 mono_mb_patch_branch (mb, labels [0]);
3814 emit_thread_force_interrupt_checkpoint (mb);
3815 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3817 mono_mb_emit_ldloc (mb, 0);
3818 mono_mb_emit_byte (mb, CEE_RET);
3823 * generates IL code for the runtime invoke function
3824 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3826 * we also catch exceptions if exc != null
3827 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3828 * it means that the compiled code for METHOD does not have to be looked up
3829 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3830 * its METHOD argument.
3833 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3835 MonoMethodSignature *sig, *csig, *callsig;
3836 MonoMethodBuilder *mb;
3837 GHashTable *cache = NULL;
3838 MonoClass *target_klass;
3839 MonoMethod *res = NULL;
3840 static MonoMethodSignature *cctor_signature = NULL;
3841 static MonoMethodSignature *finalize_signature = NULL;
3843 const char *param_names [16];
3844 gboolean need_direct_wrapper = FALSE;
3849 if (!cctor_signature) {
3850 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3851 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3853 if (!finalize_signature) {
3854 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3855 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3856 finalize_signature->hasthis = 1;
3860 need_direct_wrapper = TRUE;
3863 * Use a separate cache indexed by methods to speed things up and to avoid the
3864 * boundless mempool growth caused by the signature_dup stuff below.
3867 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3869 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3870 res = mono_marshal_find_in_cache (cache, method);
3874 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3875 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3877 * Array Get/Set/Address methods. The JIT implements them using inline code
3878 * so we need to create an invoke wrapper which calls the method directly.
3880 need_direct_wrapper = TRUE;
3883 if (method->string_ctor) {
3884 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3886 callsig = add_string_ctor_signature (method);
3887 /* Can't share this as we push a string as this */
3888 need_direct_wrapper = TRUE;
3890 if (method_is_dynamic (method))
3891 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3893 callsig = mono_method_signature (method);
3896 target_klass = get_wrapper_target_class (method->klass->image);
3898 /* Try to share wrappers for non-corlib methods with simple signatures */
3899 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3900 callsig = cctor_signature;
3901 target_klass = mono_defaults.object_class;
3902 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3903 callsig = finalize_signature;
3904 target_klass = mono_defaults.object_class;
3907 if (need_direct_wrapper) {
3908 /* Already searched at the start */
3910 MonoMethodSignature *tmp_sig;
3912 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3914 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3915 /* These have a different csig */
3916 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3917 (GHashFunc)mono_signature_hash,
3918 (GCompareFunc)runtime_invoke_signature_equal);
3920 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3921 (GHashFunc)mono_signature_hash,
3922 (GCompareFunc)runtime_invoke_signature_equal);
3924 /* from mono_marshal_find_in_cache */
3925 mono_marshal_lock ();
3926 res = g_hash_table_lookup (cache, callsig);
3927 mono_marshal_unlock ();
3934 /* Make a copy of the signature from the image mempool */
3936 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3940 sig = mono_method_signature (method);
3942 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3944 csig->ret = &mono_defaults.object_class->byval_arg;
3945 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3946 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3948 csig->params [0] = &mono_defaults.object_class->byval_arg;
3949 csig->params [1] = &mono_defaults.int_class->byval_arg;
3950 csig->params [2] = &mono_defaults.int_class->byval_arg;
3951 csig->params [3] = &mono_defaults.int_class->byval_arg;
3954 /* This is called from runtime code so it has to be cdecl */
3955 csig->call_convention = MONO_CALL_C;
3958 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3959 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3963 param_names [0] = "this";
3964 param_names [1] = "params";
3965 param_names [2] = "exc";
3966 param_names [3] = "method";
3967 mono_mb_set_param_names (mb, param_names);
3969 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3972 if (need_direct_wrapper) {
3974 mb->skip_visibility = 1;
3976 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3977 info->d.runtime_invoke.method = method;
3978 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3980 /* taken from mono_mb_create_and_cache */
3981 mono_marshal_lock ();
3982 res = g_hash_table_lookup (cache, callsig);
3983 mono_marshal_unlock ();
3985 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3986 info->d.runtime_invoke.sig = callsig;
3988 /* Somebody may have created it before us */
3991 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3993 mono_marshal_lock ();
3994 res = g_hash_table_lookup (cache, callsig);
3997 g_hash_table_insert (cache, callsig, res);
3998 /* Can't insert it into wrapper_hash since the key is a signature */
3999 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4001 mono_free_method (newm);
4003 mono_marshal_unlock ();
4006 /* end mono_mb_create_and_cache */
4015 * mono_marshal_get_runtime_invoke_dynamic:
4017 * Return a method which can be used to invoke managed methods from native code
4019 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4020 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4021 * ARGS should point to an architecture specific structure containing
4022 * the arguments and space for the return value.
4023 * The other arguments are the same as for runtime_invoke (), except that
4024 * ARGS should contain the this argument too.
4025 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4026 * is only one copy of it, which is useful in full-aot.
4027 * The wrapper info for the wrapper is a WrapperInfo structure.
4030 mono_marshal_get_runtime_invoke_dynamic (void)
4032 static MonoMethod *method;
4033 MonoMethodSignature *csig;
4034 MonoExceptionClause *clause;
4035 MonoMethodBuilder *mb;
4043 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4045 csig->ret = &mono_defaults.void_class->byval_arg;
4046 csig->params [0] = &mono_defaults.int_class->byval_arg;
4047 csig->params [1] = &mono_defaults.int_class->byval_arg;
4048 csig->params [2] = &mono_defaults.int_class->byval_arg;
4049 csig->params [3] = &mono_defaults.int_class->byval_arg;
4051 name = g_strdup ("runtime_invoke_dynamic");
4052 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4056 /* allocate local 0 (object) tmp */
4057 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4058 /* allocate local 1 (object) exc */
4059 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4061 /* cond set *exc to null */
4062 mono_mb_emit_byte (mb, CEE_LDARG_1);
4063 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4064 mono_mb_emit_byte (mb, 3);
4065 mono_mb_emit_byte (mb, CEE_LDARG_1);
4066 mono_mb_emit_byte (mb, CEE_LDNULL);
4067 mono_mb_emit_byte (mb, CEE_STIND_REF);
4069 emit_thread_force_interrupt_checkpoint (mb);
4071 mono_mb_emit_byte (mb, CEE_LDARG_0);
4072 mono_mb_emit_byte (mb, CEE_LDARG_2);
4073 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4074 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4076 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4078 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4079 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4080 clause->try_len = mono_mb_get_label (mb);
4083 clause->data.filter_offset = mono_mb_get_label (mb);
4085 mono_mb_emit_byte (mb, CEE_POP);
4086 mono_mb_emit_byte (mb, CEE_LDARG_1);
4087 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4088 mono_mb_emit_byte (mb, CEE_PREFIX1);
4089 mono_mb_emit_byte (mb, CEE_CGT_UN);
4090 mono_mb_emit_byte (mb, CEE_PREFIX1);
4091 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4093 clause->handler_offset = mono_mb_get_label (mb);
4096 /* store exception */
4097 mono_mb_emit_stloc (mb, 1);
4099 mono_mb_emit_byte (mb, CEE_LDARG_1);
4100 mono_mb_emit_ldloc (mb, 1);
4101 mono_mb_emit_byte (mb, CEE_STIND_REF);
4103 mono_mb_emit_byte (mb, CEE_LDNULL);
4104 mono_mb_emit_stloc (mb, 0);
4106 /* Check for the abort exception */
4107 mono_mb_emit_ldloc (mb, 1);
4108 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4109 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4111 /* Delay the abort exception */
4112 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4114 mono_mb_patch_short_branch (mb, posna);
4115 mono_mb_emit_branch (mb, CEE_LEAVE);
4117 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4119 mono_mb_set_clauses (mb, 1, clause);
4122 mono_mb_patch_branch (mb, pos);
4123 //mono_mb_emit_ldloc (mb, 0);
4124 mono_mb_emit_byte (mb, CEE_RET);
4125 #endif /* DISABLE_JIT */
4127 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4129 mono_marshal_lock ();
4130 /* double-checked locking */
4132 method = mono_mb_create (mb, csig, 16, info);
4134 mono_marshal_unlock ();
4143 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4145 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4146 klass->name_space, klass->name);
4148 mono_mb_emit_exception_marshal_directive (mb, msg);
4153 * generates IL code for the icall wrapper (the generated method
4154 * calls the unmanaged code in func)
4155 * The wrapper info for the wrapper is a WrapperInfo structure.
4158 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4160 MonoMethodSignature *csig, *csig2;
4161 MonoMethodBuilder *mb;
4166 g_assert (sig->pinvoke);
4168 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4170 mb->method->save_lmf = 1;
4172 /* Add an explicit this argument */
4174 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4176 csig2 = signature_dup (mono_defaults.corlib, sig);
4180 mono_mb_emit_byte (mb, CEE_LDARG_0);
4182 for (i = 0; i < sig->param_count; i++)
4183 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4186 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4187 mono_mb_emit_calli (mb, csig2);
4188 if (check_exceptions)
4189 emit_thread_interrupt_checkpoint (mb);
4190 mono_mb_emit_byte (mb, CEE_RET);
4193 csig = signature_dup (mono_defaults.corlib, sig);
4195 if (csig->call_convention == MONO_CALL_VARARG)
4196 csig->call_convention = 0;
4198 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4199 info->d.icall.func = (gpointer)func;
4200 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4207 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4208 MonoMarshalSpec *spec,
4209 int conv_arg, MonoType **conv_arg_type,
4210 MarshalAction action)
4213 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4214 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4219 static MonoClass *ICustomMarshaler = NULL;
4220 static MonoMethod *cleanup_native, *cleanup_managed;
4221 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4222 MonoMethod *get_instance = NULL;
4223 MonoMethodBuilder *mb = m->mb;
4224 char *exception_msg = NULL;
4228 if (!ICustomMarshaler) {
4229 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4231 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4232 goto handle_exception;
4235 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4236 g_assert (cleanup_native);
4237 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4238 g_assert (cleanup_managed);
4239 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4240 g_assert (marshal_managed_to_native);
4241 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4242 g_assert (marshal_native_to_managed);
4244 mono_memory_barrier ();
4245 ICustomMarshaler = klass;
4248 if (spec->data.custom_data.image)
4249 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4251 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4252 g_assert (mtype != NULL);
4253 mklass = mono_class_from_mono_type (mtype);
4254 g_assert (mklass != NULL);
4256 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4257 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4259 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4261 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4262 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4263 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4264 (get_sig->params [0]->type != MONO_TYPE_STRING))
4265 get_instance = NULL;
4269 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);
4272 /* Throw exception and emit compensation code if neccesary */
4273 if (exception_msg) {
4275 case MARSHAL_ACTION_CONV_IN:
4276 case MARSHAL_ACTION_CONV_RESULT:
4277 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4278 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4279 mono_mb_emit_byte (mb, CEE_POP);
4281 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4282 g_free (exception_msg);
4285 case MARSHAL_ACTION_PUSH:
4286 mono_mb_emit_byte (mb, CEE_LDNULL);
4294 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4295 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4298 case MARSHAL_ACTION_CONV_IN:
4300 case MONO_TYPE_CLASS:
4301 case MONO_TYPE_OBJECT:
4302 case MONO_TYPE_STRING:
4303 case MONO_TYPE_ARRAY:
4304 case MONO_TYPE_SZARRAY:
4305 case MONO_TYPE_VALUETYPE:
4309 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4310 g_assert_not_reached ();
4314 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4316 mono_mb_emit_byte (mb, CEE_LDNULL);
4317 mono_mb_emit_stloc (mb, conv_arg);
4319 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4322 /* Minic MS.NET behavior */
4323 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4326 /* Check for null */
4327 mono_mb_emit_ldarg (mb, argnum);
4329 mono_mb_emit_byte (mb, CEE_LDIND_I);
4330 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4332 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4334 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4336 mono_mb_emit_ldarg (mb, argnum);
4338 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4340 if (t->type == MONO_TYPE_VALUETYPE) {
4342 * Since we can't determine the type of the argument, we
4343 * will assume the unmanaged function takes a pointer.
4345 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4347 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4350 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4351 mono_mb_emit_stloc (mb, conv_arg);
4353 mono_mb_patch_branch (mb, pos2);
4356 case MARSHAL_ACTION_CONV_OUT:
4357 /* Check for null */
4358 mono_mb_emit_ldloc (mb, conv_arg);
4359 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4362 mono_mb_emit_ldarg (mb, argnum);
4364 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4366 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4368 mono_mb_emit_ldloc (mb, conv_arg);
4369 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4370 mono_mb_emit_byte (mb, CEE_STIND_REF);
4371 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4372 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4374 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4376 mono_mb_emit_ldloc (mb, conv_arg);
4377 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4379 /* We have nowhere to store the result */
4380 mono_mb_emit_byte (mb, CEE_POP);
4383 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4385 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4387 mono_mb_emit_ldloc (mb, conv_arg);
4389 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4391 mono_mb_patch_branch (mb, pos2);
4394 case MARSHAL_ACTION_PUSH:
4396 mono_mb_emit_ldloc_addr (mb, conv_arg);
4398 mono_mb_emit_ldloc (mb, conv_arg);
4401 case MARSHAL_ACTION_CONV_RESULT:
4402 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4404 mono_mb_emit_stloc (mb, 3);
4406 mono_mb_emit_ldloc (mb, 3);
4407 mono_mb_emit_stloc (mb, loc1);
4409 /* Check for null */
4410 mono_mb_emit_ldloc (mb, 3);
4411 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4413 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4415 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4416 mono_mb_emit_byte (mb, CEE_DUP);
4418 mono_mb_emit_ldloc (mb, 3);
4419 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4420 mono_mb_emit_stloc (mb, 3);
4422 mono_mb_emit_ldloc (mb, loc1);
4423 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4425 mono_mb_patch_branch (mb, pos2);
4428 case MARSHAL_ACTION_MANAGED_CONV_IN:
4429 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4431 mono_mb_emit_byte (mb, CEE_LDNULL);
4432 mono_mb_emit_stloc (mb, conv_arg);
4434 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4437 /* Check for null */
4438 mono_mb_emit_ldarg (mb, argnum);
4440 mono_mb_emit_byte (mb, CEE_LDIND_I);
4441 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4443 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4444 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4446 mono_mb_emit_ldarg (mb, argnum);
4448 mono_mb_emit_byte (mb, CEE_LDIND_I);
4450 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4451 mono_mb_emit_stloc (mb, conv_arg);
4453 mono_mb_patch_branch (mb, pos2);
4456 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4457 g_assert (!t->byref);
4459 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4461 mono_mb_emit_stloc (mb, 3);
4463 mono_mb_emit_ldloc (mb, 3);
4464 mono_mb_emit_stloc (mb, loc1);
4466 /* Check for null */
4467 mono_mb_emit_ldloc (mb, 3);
4468 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4470 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4471 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4472 mono_mb_emit_byte (mb, CEE_DUP);
4474 mono_mb_emit_ldloc (mb, 3);
4475 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4476 mono_mb_emit_stloc (mb, 3);
4478 mono_mb_emit_ldloc (mb, loc1);
4479 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4481 mono_mb_patch_branch (mb, pos2);
4484 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4486 /* Check for null */
4487 mono_mb_emit_ldloc (mb, conv_arg);
4488 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4491 mono_mb_emit_ldarg (mb, argnum);
4493 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4495 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4497 mono_mb_emit_ldloc (mb, conv_arg);
4498 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4499 mono_mb_emit_byte (mb, CEE_STIND_I);
4502 /* Call CleanUpManagedData */
4503 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4505 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4507 mono_mb_emit_ldloc (mb, conv_arg);
4508 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4510 mono_mb_patch_branch (mb, pos2);
4514 g_assert_not_reached ();
4522 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4523 MonoMarshalSpec *spec,
4524 int conv_arg, MonoType **conv_arg_type,
4525 MarshalAction action)
4528 MonoMethodBuilder *mb = m->mb;
4531 case MARSHAL_ACTION_CONV_IN: {
4532 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4534 g_assert (t->type == MONO_TYPE_OBJECT);
4535 g_assert (!t->byref);
4537 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4538 mono_mb_emit_ldarg (mb, argnum);
4539 mono_mb_emit_icon (mb, encoding);
4540 mono_mb_emit_icon (mb, t->attrs);
4541 mono_mb_emit_icall (mb, mono_marshal_asany);
4542 mono_mb_emit_stloc (mb, conv_arg);
4546 case MARSHAL_ACTION_PUSH:
4547 mono_mb_emit_ldloc (mb, conv_arg);
4550 case MARSHAL_ACTION_CONV_OUT: {
4551 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4553 mono_mb_emit_ldarg (mb, argnum);
4554 mono_mb_emit_ldloc (mb, conv_arg);
4555 mono_mb_emit_icon (mb, encoding);
4556 mono_mb_emit_icon (mb, t->attrs);
4557 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4562 g_assert_not_reached ();
4569 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4570 MonoMarshalSpec *spec,
4571 int conv_arg, MonoType **conv_arg_type,
4572 MarshalAction action)
4575 MonoMethodBuilder *mb = m->mb;
4576 MonoClass *klass, *date_time_class;
4579 klass = mono_class_from_mono_type (t);
4581 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4584 case MARSHAL_ACTION_CONV_IN:
4585 if (klass == date_time_class) {
4586 /* Convert it to an OLE DATE type */
4587 static MonoMethod *to_oadate;
4590 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4591 g_assert (to_oadate);
4593 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4596 mono_mb_emit_ldarg (mb, argnum);
4597 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4600 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4602 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4604 mono_mb_emit_ldarg_addr (mb, argnum);
4605 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4606 mono_mb_emit_stloc (mb, conv_arg);
4610 mono_mb_patch_branch (mb, pos);
4614 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4615 klass->blittable || klass->enumtype)
4618 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4620 /* store the address of the source into local variable 0 */
4622 mono_mb_emit_ldarg (mb, argnum);
4624 mono_mb_emit_ldarg_addr (mb, argnum);
4626 mono_mb_emit_stloc (mb, 0);
4628 /* allocate space for the native struct and
4629 * store the address into local variable 1 (dest) */
4630 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4631 mono_mb_emit_byte (mb, CEE_PREFIX1);
4632 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4633 mono_mb_emit_stloc (mb, conv_arg);
4636 mono_mb_emit_ldloc (mb, 0);
4637 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4640 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4642 mono_mb_emit_ldloc (mb, conv_arg);
4643 mono_mb_emit_stloc (mb, 1);
4645 /* emit valuetype conversion code */
4646 emit_struct_conv (mb, klass, FALSE);
4650 mono_mb_patch_branch (mb, pos);
4653 case MARSHAL_ACTION_PUSH:
4654 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4656 g_assert (!t->byref);
4658 /* Have to change the signature since the vtype is passed byref */
4659 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4661 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4662 klass->blittable || klass->enumtype)
4663 mono_mb_emit_ldarg_addr (mb, argnum);
4665 mono_mb_emit_ldloc (mb, conv_arg);
4669 if (klass == date_time_class) {
4671 mono_mb_emit_ldloc_addr (mb, conv_arg);
4673 mono_mb_emit_ldloc (mb, conv_arg);
4677 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4678 klass->blittable || klass->enumtype) {
4679 mono_mb_emit_ldarg (mb, argnum);
4682 mono_mb_emit_ldloc (mb, conv_arg);
4684 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4685 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4689 case MARSHAL_ACTION_CONV_OUT:
4690 if (klass == date_time_class) {
4691 /* Convert from an OLE DATE type */
4692 static MonoMethod *from_oadate;
4697 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4699 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4700 g_assert (from_oadate);
4702 mono_mb_emit_ldarg (mb, argnum);
4703 mono_mb_emit_ldloc (mb, conv_arg);
4704 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4705 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4710 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4711 klass->blittable || klass->enumtype)
4715 /* dst = argument */
4716 mono_mb_emit_ldarg (mb, argnum);
4717 mono_mb_emit_stloc (mb, 1);
4719 mono_mb_emit_ldloc (mb, 1);
4720 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4722 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4723 /* src = tmp_locals [i] */
4724 mono_mb_emit_ldloc (mb, conv_arg);
4725 mono_mb_emit_stloc (mb, 0);
4727 /* emit valuetype conversion code */
4728 emit_struct_conv (mb, klass, TRUE);
4732 emit_struct_free (mb, klass, conv_arg);
4735 mono_mb_patch_branch (mb, pos);
4738 case MARSHAL_ACTION_CONV_RESULT:
4739 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4741 mono_mb_emit_stloc (mb, 3);
4745 /* load pointer to returned value type */
4746 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4747 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4748 /* store the address of the source into local variable 0 */
4749 mono_mb_emit_stloc (mb, 0);
4751 mono_mb_emit_ldloc_addr (mb, 3);
4752 mono_mb_emit_stloc (mb, 1);
4754 /* emit valuetype conversion code */
4755 emit_struct_conv (mb, klass, TRUE);
4758 case MARSHAL_ACTION_MANAGED_CONV_IN:
4759 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4760 klass->blittable || klass->enumtype) {
4765 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4767 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4771 mono_mb_emit_ldarg (mb, argnum);
4773 mono_mb_emit_ldarg_addr (mb, argnum);
4774 mono_mb_emit_stloc (mb, 0);
4777 mono_mb_emit_ldloc (mb, 0);
4778 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4781 mono_mb_emit_ldloc_addr (mb, conv_arg);
4782 mono_mb_emit_stloc (mb, 1);
4784 /* emit valuetype conversion code */
4785 emit_struct_conv (mb, klass, TRUE);
4788 mono_mb_patch_branch (mb, pos);
4791 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4792 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4793 klass->blittable || klass->enumtype) {
4797 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4800 /* Check for null */
4801 mono_mb_emit_ldarg (mb, argnum);
4802 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4805 mono_mb_emit_ldloc_addr (mb, conv_arg);
4806 mono_mb_emit_stloc (mb, 0);
4809 mono_mb_emit_ldarg (mb, argnum);
4810 mono_mb_emit_stloc (mb, 1);
4812 /* emit valuetype conversion code */
4813 emit_struct_conv (mb, klass, FALSE);
4815 mono_mb_patch_branch (mb, pos2);
4818 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4819 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4820 klass->blittable || klass->enumtype) {
4821 mono_mb_emit_stloc (mb, 3);
4826 /* load pointer to returned value type */
4827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4828 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4830 /* store the address of the source into local variable 0 */
4831 mono_mb_emit_stloc (mb, 0);
4832 /* allocate space for the native struct and
4833 * store the address into dst_ptr */
4834 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4835 m->retobj_class = klass;
4836 g_assert (m->retobj_var);
4837 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4838 mono_mb_emit_byte (mb, CEE_CONV_I);
4839 mono_mb_emit_icall (mb, mono_marshal_alloc);
4840 mono_mb_emit_stloc (mb, 1);
4841 mono_mb_emit_ldloc (mb, 1);
4842 mono_mb_emit_stloc (mb, m->retobj_var);
4844 /* emit valuetype conversion code */
4845 emit_struct_conv (mb, klass, FALSE);
4849 g_assert_not_reached ();
4856 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4857 MonoMarshalSpec *spec,
4858 int conv_arg, MonoType **conv_arg_type,
4859 MarshalAction action)
4863 case MARSHAL_ACTION_CONV_IN:
4864 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4866 case MARSHAL_ACTION_MANAGED_CONV_IN:
4867 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4871 MonoMethodBuilder *mb = m->mb;
4872 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4873 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4877 case MARSHAL_ACTION_CONV_IN:
4878 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4879 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4882 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4885 mono_mb_emit_ldarg (mb, argnum);
4886 mono_mb_emit_byte (mb, CEE_LDIND_I);
4888 mono_mb_emit_ldarg (mb, argnum);
4892 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4893 mono_mb_emit_exception_marshal_directive (mb, msg);
4895 mono_mb_emit_icall (mb, conv_to_icall (conv));
4897 mono_mb_emit_stloc (mb, conv_arg);
4901 case MARSHAL_ACTION_CONV_OUT:
4902 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4904 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4905 mono_mb_emit_exception_marshal_directive (mb, msg);
4909 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4910 static MonoMethod *m;
4913 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4918 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4919 mono_mb_emit_exception_marshal_directive (mb, msg);
4924 * Have to allocate a new string with the same length as the original, and
4925 * copy the contents of the buffer pointed to by CONV_ARG into it.
4927 g_assert (t->byref);
4928 mono_mb_emit_ldarg (mb, argnum);
4929 mono_mb_emit_ldloc (mb, conv_arg);
4930 mono_mb_emit_ldarg (mb, argnum);
4931 mono_mb_emit_byte (mb, CEE_LDIND_I);
4932 mono_mb_emit_managed_call (mb, m, NULL);
4933 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4934 mono_mb_emit_byte (mb, CEE_STIND_REF);
4935 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4936 mono_mb_emit_ldarg (mb, argnum);
4937 mono_mb_emit_ldloc (mb, conv_arg);
4938 mono_mb_emit_icall (mb, conv_to_icall (conv));
4939 mono_mb_emit_byte (mb, CEE_STIND_REF);
4944 mono_mb_emit_ldloc (mb, conv_arg);
4945 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4946 mono_mb_emit_icall (mb, mono_free_bstr);
4948 mono_mb_emit_icall (mb, mono_marshal_free);
4952 case MARSHAL_ACTION_PUSH:
4953 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4954 mono_mb_emit_ldloc_addr (mb, conv_arg);
4956 mono_mb_emit_ldloc (mb, conv_arg);
4959 case MARSHAL_ACTION_CONV_RESULT:
4960 mono_mb_emit_stloc (mb, 0);
4962 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4964 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4965 mono_mb_emit_exception_marshal_directive (mb, msg);
4969 mono_mb_emit_ldloc (mb, 0);
4970 mono_mb_emit_icall (mb, conv_to_icall (conv));
4971 mono_mb_emit_stloc (mb, 3);
4973 /* free the string */
4974 mono_mb_emit_ldloc (mb, 0);
4975 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4976 mono_mb_emit_icall (mb, mono_free_bstr);
4978 mono_mb_emit_icall (mb, mono_marshal_free);
4981 case MARSHAL_ACTION_MANAGED_CONV_IN:
4982 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4984 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4987 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4991 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4993 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4994 mono_mb_emit_exception_marshal_directive (mb, msg);
4998 mono_mb_emit_ldarg (mb, argnum);
5000 mono_mb_emit_byte (mb, CEE_LDIND_I);
5001 mono_mb_emit_icall (mb, conv_to_icall (conv));
5002 mono_mb_emit_stloc (mb, conv_arg);
5005 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5008 mono_mb_emit_ldarg (mb, argnum);
5009 mono_mb_emit_ldloc (mb, conv_arg);
5010 mono_mb_emit_icall (mb, conv_to_icall (conv));
5011 mono_mb_emit_byte (mb, CEE_STIND_I);
5016 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5017 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5018 /* We need to make a copy so the caller is able to free it */
5019 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5021 mono_mb_emit_icall (mb, conv_to_icall (conv));
5022 mono_mb_emit_stloc (mb, 3);
5026 g_assert_not_reached ();
5034 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5035 MonoMarshalSpec *spec, int conv_arg,
5036 MonoType **conv_arg_type, MarshalAction action)
5039 if (action == MARSHAL_ACTION_CONV_IN)
5040 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5042 MonoMethodBuilder *mb = m->mb;
5045 case MARSHAL_ACTION_CONV_IN: {
5046 MonoType *intptr_type;
5047 int dar_release_slot, pos;
5049 intptr_type = &mono_defaults.int_class->byval_arg;
5050 conv_arg = mono_mb_add_local (mb, intptr_type);
5051 *conv_arg_type = intptr_type;
5053 if (!sh_dangerous_add_ref)
5054 init_safe_handle ();
5056 mono_mb_emit_ldarg (mb, argnum);
5057 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5058 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5060 mono_mb_patch_branch (mb, pos);
5063 * My tests in show that ref SafeHandles are not really
5064 * passed as ref objects. Instead a NULL is passed as the
5067 mono_mb_emit_icon (mb, 0);
5068 mono_mb_emit_stloc (mb, conv_arg);
5072 /* Create local to hold the ref parameter to DangerousAddRef */
5073 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5075 /* set release = false; */
5076 mono_mb_emit_icon (mb, 0);
5077 mono_mb_emit_stloc (mb, dar_release_slot);
5079 /* safehandle.DangerousAddRef (ref release) */
5080 mono_mb_emit_ldarg (mb, argnum);
5081 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5082 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5084 /* Pull the handle field from SafeHandle */
5085 mono_mb_emit_ldarg (mb, argnum);
5086 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5087 mono_mb_emit_byte (mb, CEE_LDIND_I);
5088 mono_mb_emit_stloc (mb, conv_arg);
5093 case MARSHAL_ACTION_PUSH:
5095 mono_mb_emit_ldloc_addr (mb, conv_arg);
5097 mono_mb_emit_ldloc (mb, conv_arg);
5100 case MARSHAL_ACTION_CONV_OUT: {
5101 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5102 int dar_release_slot = conv_arg + 1;
5105 if (!sh_dangerous_release)
5106 init_safe_handle ();
5112 * My tests indicate that ref SafeHandles parameters are not actually
5113 * passed by ref, but instead a new Handle is created regardless of
5114 * whether a change happens in the unmanaged side.
5116 * Also, the Handle is created before calling into unmanaged code,
5117 * but we do not support that mechanism (getting to the original
5118 * handle) and it makes no difference where we create this
5120 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5122 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5125 /* refval = new SafeHandleDerived ()*/
5126 mono_mb_emit_ldarg (mb, argnum);
5127 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5128 mono_mb_emit_byte (mb, CEE_STIND_REF);
5130 /* refval.handle = returned_handle */
5131 mono_mb_emit_ldarg (mb, argnum);
5132 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5134 mono_mb_emit_ldloc (mb, conv_arg);
5135 mono_mb_emit_byte (mb, CEE_STIND_I);
5137 mono_mb_emit_ldloc (mb, dar_release_slot);
5138 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5141 mono_mb_patch_branch (mb, label_next);
5146 case MARSHAL_ACTION_CONV_RESULT: {
5147 MonoMethod *ctor = NULL;
5148 int intptr_handle_slot;
5150 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5151 mono_mb_emit_byte (mb, CEE_POP);
5152 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5156 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5158 mono_mb_emit_byte (mb, CEE_POP);
5159 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5162 /* Store the IntPtr results into a local */
5163 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5164 mono_mb_emit_stloc (mb, intptr_handle_slot);
5166 /* Create return value */
5167 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5168 mono_mb_emit_stloc (mb, 3);
5170 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5171 mono_mb_emit_ldloc (mb, 3);
5172 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5173 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5174 mono_mb_emit_byte (mb, CEE_STIND_I);
5178 case MARSHAL_ACTION_MANAGED_CONV_IN:
5179 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5182 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5186 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5187 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5190 printf ("Unhandled case for MarshalAction: %d\n", action);
5198 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5199 MonoMarshalSpec *spec, int conv_arg,
5200 MonoType **conv_arg_type, MarshalAction action)
5203 if (action == MARSHAL_ACTION_CONV_IN)
5204 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5206 MonoMethodBuilder *mb = m->mb;
5209 case MARSHAL_ACTION_CONV_IN: {
5210 MonoType *intptr_type;
5212 intptr_type = &mono_defaults.int_class->byval_arg;
5213 conv_arg = mono_mb_add_local (mb, intptr_type);
5214 *conv_arg_type = intptr_type;
5217 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5218 mono_mb_emit_exception_marshal_directive (mb, msg);
5221 mono_mb_emit_ldarg_addr (mb, argnum);
5222 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5223 mono_mb_emit_byte (mb, CEE_ADD);
5224 mono_mb_emit_byte (mb, CEE_LDIND_I);
5225 mono_mb_emit_stloc (mb, conv_arg);
5229 case MARSHAL_ACTION_PUSH:
5230 mono_mb_emit_ldloc (mb, conv_arg);
5233 case MARSHAL_ACTION_CONV_OUT: {
5234 /* no resource release required */
5238 case MARSHAL_ACTION_CONV_RESULT: {
5239 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5240 mono_mb_emit_exception_marshal_directive (mb, msg);
5244 case MARSHAL_ACTION_MANAGED_CONV_IN:
5245 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5248 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5249 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5252 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5253 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5256 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5264 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5265 MonoMarshalSpec *spec,
5266 int conv_arg, MonoType **conv_arg_type,
5267 MarshalAction action)
5270 if (action == MARSHAL_ACTION_CONV_IN)
5271 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5273 MonoMethodBuilder *mb = m->mb;
5274 MonoClass *klass = mono_class_from_mono_type (t);
5278 case MARSHAL_ACTION_CONV_IN:
5279 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5280 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5282 m->orig_conv_args [argnum] = 0;
5284 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5285 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5286 mono_mb_emit_exception_marshal_directive (mb, msg);
5290 if (klass->delegate) {
5292 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5293 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5294 mono_mb_emit_exception_marshal_directive (mb, msg);
5296 mono_mb_emit_byte (mb, CEE_LDNULL);
5297 mono_mb_emit_stloc (mb, conv_arg);
5299 mono_mb_emit_ldarg (mb, argnum);
5300 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5301 mono_mb_emit_stloc (mb, conv_arg);
5303 } else if (klass == mono_defaults.stringbuilder_class) {
5304 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5305 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5309 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5310 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5311 mono_mb_emit_exception_marshal_directive (mb, msg);
5317 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5321 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5322 mono_mb_emit_exception_marshal_directive (mb, msg);
5326 mono_mb_emit_ldarg (mb, argnum);
5328 mono_mb_emit_byte (mb, CEE_LDIND_I);
5330 mono_mb_emit_icall (mb, conv_to_icall (conv));
5331 mono_mb_emit_stloc (mb, conv_arg);
5332 } else if (klass->blittable) {
5333 mono_mb_emit_byte (mb, CEE_LDNULL);
5334 mono_mb_emit_stloc (mb, conv_arg);
5336 mono_mb_emit_ldarg (mb, argnum);
5337 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5339 mono_mb_emit_ldarg (mb, argnum);
5340 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5341 mono_mb_emit_stloc (mb, conv_arg);
5343 mono_mb_patch_branch (mb, pos);
5346 mono_mb_emit_byte (mb, CEE_LDNULL);
5347 mono_mb_emit_stloc (mb, conv_arg);
5350 /* we dont need any conversions for out parameters */
5351 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5354 mono_mb_emit_ldarg (mb, argnum);
5355 mono_mb_emit_byte (mb, CEE_LDIND_I);
5358 mono_mb_emit_ldarg (mb, argnum);
5359 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5360 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5363 /* store the address of the source into local variable 0 */
5364 mono_mb_emit_stloc (mb, 0);
5365 mono_mb_emit_ldloc (mb, 0);
5366 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5368 /* allocate space for the native struct and store the address */
5369 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5370 mono_mb_emit_byte (mb, CEE_PREFIX1);
5371 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5372 mono_mb_emit_stloc (mb, conv_arg);
5375 /* Need to store the original buffer so we can free it later */
5376 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5377 mono_mb_emit_ldloc (mb, conv_arg);
5378 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5381 /* set the src_ptr */
5382 mono_mb_emit_ldloc (mb, 0);
5383 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5384 mono_mb_emit_stloc (mb, 0);
5387 mono_mb_emit_ldloc (mb, conv_arg);
5388 mono_mb_emit_stloc (mb, 1);
5390 /* emit valuetype conversion code */
5391 emit_struct_conv (mb, klass, FALSE);
5393 mono_mb_patch_branch (mb, pos);
5397 case MARSHAL_ACTION_CONV_OUT:
5398 if (klass == mono_defaults.stringbuilder_class) {
5400 MonoMarshalNative encoding;
5401 MonoMarshalConv conv;
5403 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5404 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5406 g_assert (encoding != -1);
5409 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5413 mono_mb_emit_ldarg (mb, argnum);
5414 mono_mb_emit_ldloc (mb, conv_arg);
5417 case MONO_NATIVE_LPWSTR:
5418 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5420 case MONO_NATIVE_LPSTR:
5421 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5424 g_assert_not_reached ();
5427 mono_mb_emit_byte (mb, CEE_STIND_REF);
5429 mono_mb_emit_ldarg (mb, argnum);
5430 mono_mb_emit_ldloc (mb, conv_arg);
5432 mono_mb_emit_icall (mb, conv_to_icall (conv));
5436 mono_mb_emit_ldloc (mb, conv_arg);
5437 mono_mb_emit_icall (mb, mono_marshal_free);
5442 if (klass->delegate) {
5444 mono_mb_emit_ldarg (mb, argnum);
5445 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5446 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5447 mono_mb_emit_ldloc (mb, conv_arg);
5448 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5449 mono_mb_emit_byte (mb, CEE_STIND_REF);
5454 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5455 /* allocate a new object */
5456 mono_mb_emit_ldarg (mb, argnum);
5457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5458 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5459 mono_mb_emit_byte (mb, CEE_STIND_REF);
5462 /* dst = *argument */
5463 mono_mb_emit_ldarg (mb, argnum);
5466 mono_mb_emit_byte (mb, CEE_LDIND_I);
5468 mono_mb_emit_stloc (mb, 1);
5470 mono_mb_emit_ldloc (mb, 1);
5471 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5473 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5474 mono_mb_emit_ldloc (mb, 1);
5475 mono_mb_emit_icon (mb, sizeof (MonoObject));
5476 mono_mb_emit_byte (mb, CEE_ADD);
5477 mono_mb_emit_stloc (mb, 1);
5479 /* src = tmp_locals [i] */
5480 mono_mb_emit_ldloc (mb, conv_arg);
5481 mono_mb_emit_stloc (mb, 0);
5483 /* emit valuetype conversion code */
5484 emit_struct_conv (mb, klass, TRUE);
5486 /* Free the structure returned by the native code */
5487 emit_struct_free (mb, klass, conv_arg);
5489 if (m->orig_conv_args [argnum]) {
5491 * If the native function changed the pointer, then free
5492 * the original structure plus the new pointer.
5494 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5495 mono_mb_emit_ldloc (mb, conv_arg);
5496 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5498 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5499 g_assert (m->orig_conv_args [argnum]);
5501 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5504 mono_mb_emit_ldloc (mb, conv_arg);
5505 mono_mb_emit_icall (mb, mono_marshal_free);
5507 mono_mb_patch_branch (mb, pos2);
5511 /* Free the original structure passed to native code */
5512 emit_struct_free (mb, klass, conv_arg);
5514 mono_mb_patch_branch (mb, pos);
5517 case MARSHAL_ACTION_PUSH:
5519 mono_mb_emit_ldloc_addr (mb, conv_arg);
5521 mono_mb_emit_ldloc (mb, conv_arg);
5524 case MARSHAL_ACTION_CONV_RESULT:
5525 if (klass->delegate) {
5526 g_assert (!t->byref);
5527 mono_mb_emit_stloc (mb, 0);
5528 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5529 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5530 mono_mb_emit_ldloc (mb, 0);
5531 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5532 mono_mb_emit_stloc (mb, 3);
5535 mono_mb_emit_stloc (mb, 0);
5537 /* Make a copy since emit_conv modifies local 0 */
5538 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5539 mono_mb_emit_ldloc (mb, 0);
5540 mono_mb_emit_stloc (mb, loc);
5542 mono_mb_emit_byte (mb, CEE_LDNULL);
5543 mono_mb_emit_stloc (mb, 3);
5545 mono_mb_emit_ldloc (mb, 0);
5546 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5548 /* allocate result object */
5550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5551 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5552 mono_mb_emit_stloc (mb, 3);
5556 mono_mb_emit_ldloc (mb, 3);
5557 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5558 mono_mb_emit_stloc (mb, 1);
5560 /* emit conversion code */
5561 emit_struct_conv (mb, klass, TRUE);
5563 emit_struct_free (mb, klass, loc);
5565 /* Free the pointer allocated by unmanaged code */
5566 mono_mb_emit_ldloc (mb, loc);
5567 mono_mb_emit_icall (mb, mono_marshal_free);
5568 mono_mb_patch_branch (mb, pos);
5572 case MARSHAL_ACTION_MANAGED_CONV_IN:
5573 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5575 if (klass->delegate) {
5576 g_assert (!t->byref);
5577 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5578 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5579 mono_mb_emit_ldarg (mb, argnum);
5580 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5581 mono_mb_emit_stloc (mb, conv_arg);
5585 if (klass == mono_defaults.stringbuilder_class) {
5586 MonoMarshalNative encoding;
5588 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5591 g_assert (encoding == MONO_NATIVE_LPSTR);
5593 g_assert (!t->byref);
5594 g_assert (encoding != -1);
5596 mono_mb_emit_ldarg (mb, argnum);
5597 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5598 mono_mb_emit_stloc (mb, conv_arg);
5602 /* The class can not have an automatic layout */
5603 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5604 mono_mb_emit_auto_layout_exception (mb, klass);
5608 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5609 mono_mb_emit_byte (mb, CEE_LDNULL);
5610 mono_mb_emit_stloc (mb, conv_arg);
5615 mono_mb_emit_ldarg (mb, argnum);
5619 /* Check for NULL and raise an exception */
5620 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5622 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5624 mono_mb_patch_branch (mb, pos2);
5625 mono_mb_emit_ldarg (mb, argnum);
5626 mono_mb_emit_byte (mb, CEE_LDIND_I);
5629 mono_mb_emit_stloc (mb, 0);
5631 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5632 mono_mb_emit_stloc (mb, conv_arg);
5634 mono_mb_emit_ldloc (mb, 0);
5635 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5637 /* Create and set dst */
5638 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5639 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5640 mono_mb_emit_stloc (mb, conv_arg);
5641 mono_mb_emit_ldloc (mb, conv_arg);
5642 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5643 mono_mb_emit_stloc (mb, 1);
5645 /* emit valuetype conversion code */
5646 emit_struct_conv (mb, klass, TRUE);
5648 mono_mb_patch_branch (mb, pos);
5651 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5653 /* Check for null */
5654 mono_mb_emit_ldloc (mb, conv_arg);
5655 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5656 mono_mb_emit_ldarg (mb, argnum);
5657 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5658 mono_mb_emit_byte (mb, CEE_STIND_REF);
5659 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5661 mono_mb_patch_branch (mb, pos);
5664 mono_mb_emit_ldloc (mb, conv_arg);
5665 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5666 mono_mb_emit_stloc (mb, 0);
5668 /* Allocate and set dest */
5669 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5670 mono_mb_emit_byte (mb, CEE_CONV_I);
5671 mono_mb_emit_icall (mb, mono_marshal_alloc);
5672 mono_mb_emit_stloc (mb, 1);
5674 /* Update argument pointer */
5675 mono_mb_emit_ldarg (mb, argnum);
5676 mono_mb_emit_ldloc (mb, 1);
5677 mono_mb_emit_byte (mb, CEE_STIND_I);
5679 /* emit valuetype conversion code */
5680 emit_struct_conv (mb, klass, FALSE);
5682 mono_mb_patch_branch (mb, pos2);
5684 /* byval [Out] marshalling */
5686 /* FIXME: Handle null */
5689 mono_mb_emit_ldloc (mb, conv_arg);
5690 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5691 mono_mb_emit_stloc (mb, 0);
5694 mono_mb_emit_ldarg (mb, argnum);
5695 mono_mb_emit_stloc (mb, 1);
5697 /* emit valuetype conversion code */
5698 emit_struct_conv (mb, klass, FALSE);
5702 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5703 if (klass->delegate) {
5704 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5705 mono_mb_emit_stloc (mb, 3);
5709 /* The class can not have an automatic layout */
5710 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5711 mono_mb_emit_auto_layout_exception (mb, klass);
5715 mono_mb_emit_stloc (mb, 0);
5716 /* Check for null */
5717 mono_mb_emit_ldloc (mb, 0);
5718 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5719 mono_mb_emit_byte (mb, CEE_LDNULL);
5720 mono_mb_emit_stloc (mb, 3);
5721 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5723 mono_mb_patch_branch (mb, pos);
5726 mono_mb_emit_ldloc (mb, 0);
5727 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5728 mono_mb_emit_stloc (mb, 0);
5730 /* Allocate and set dest */
5731 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5732 mono_mb_emit_byte (mb, CEE_CONV_I);
5733 mono_mb_emit_icall (mb, mono_marshal_alloc);
5734 mono_mb_emit_byte (mb, CEE_DUP);
5735 mono_mb_emit_stloc (mb, 1);
5736 mono_mb_emit_stloc (mb, 3);
5738 emit_struct_conv (mb, klass, FALSE);
5740 mono_mb_patch_branch (mb, pos2);
5744 g_assert_not_reached ();
5755 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5756 MonoMarshalSpec *spec,
5757 int conv_arg, MonoType **conv_arg_type,
5758 MarshalAction action)
5760 MonoMethodBuilder *mb = m->mb;
5761 static MonoMethod *get_object_for_native_variant = NULL;
5762 static MonoMethod *get_native_variant_for_object = NULL;
5764 if (!get_object_for_native_variant)
5765 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5766 g_assert (get_object_for_native_variant);
5768 if (!get_native_variant_for_object)
5769 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5770 g_assert (get_native_variant_for_object);
5773 case MARSHAL_ACTION_CONV_IN: {
5774 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5777 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5779 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5781 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5784 mono_mb_emit_ldarg (mb, argnum);
5786 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5787 mono_mb_emit_ldloc_addr (mb, conv_arg);
5788 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5792 case MARSHAL_ACTION_CONV_OUT: {
5793 static MonoMethod *variant_clear = NULL;
5796 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5797 g_assert (variant_clear);
5800 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5801 mono_mb_emit_ldarg (mb, argnum);
5802 mono_mb_emit_ldloc_addr (mb, conv_arg);
5803 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5804 mono_mb_emit_byte (mb, CEE_STIND_REF);
5807 mono_mb_emit_ldloc_addr (mb, conv_arg);
5808 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5812 case MARSHAL_ACTION_PUSH:
5814 mono_mb_emit_ldloc_addr (mb, conv_arg);
5816 mono_mb_emit_ldloc (mb, conv_arg);
5819 case MARSHAL_ACTION_CONV_RESULT: {
5820 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5821 mono_mb_emit_exception_marshal_directive (mb, msg);
5825 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5826 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5829 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5831 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5833 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5837 mono_mb_emit_ldarg (mb, argnum);
5839 mono_mb_emit_ldarg_addr (mb, argnum);
5840 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5841 mono_mb_emit_stloc (mb, conv_arg);
5845 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5846 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5847 mono_mb_emit_ldloc (mb, conv_arg);
5848 mono_mb_emit_ldarg (mb, argnum);
5849 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5854 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5855 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5856 mono_mb_emit_exception_marshal_directive (mb, msg);
5861 g_assert_not_reached ();
5867 #endif /* DISABLE_COM */
5868 #endif /* DISABLE_JIT */
5871 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5873 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5874 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5876 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5878 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5890 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5891 MonoMarshalSpec *spec,
5892 int conv_arg, MonoType **conv_arg_type,
5893 MarshalAction action)
5897 case MARSHAL_ACTION_CONV_IN:
5898 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5900 case MARSHAL_ACTION_MANAGED_CONV_IN:
5901 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5905 MonoMethodBuilder *mb = m->mb;
5906 MonoClass *klass = mono_class_from_mono_type (t);
5907 gboolean need_convert, need_free;
5908 MonoMarshalNative encoding;
5910 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5913 case MARSHAL_ACTION_CONV_IN:
5914 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5915 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5917 if (klass->element_class->blittable) {
5918 mono_mb_emit_ldarg (mb, argnum);
5920 mono_mb_emit_byte (mb, CEE_LDIND_I);
5921 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5922 mono_mb_emit_stloc (mb, conv_arg);
5925 guint32 label1, label2, label3;
5926 int index_var, src_var, dest_ptr, esize;
5927 MonoMarshalConv conv;
5928 gboolean is_string = FALSE;
5930 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5932 eklass = klass->element_class;
5934 if (eklass == mono_defaults.string_class) {
5936 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5938 else if (eklass == mono_defaults.stringbuilder_class) {
5940 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5945 if (is_string && conv == -1) {
5946 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5947 mono_mb_emit_exception_marshal_directive (mb, msg);
5951 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5952 mono_mb_emit_ldarg (mb, argnum);
5954 mono_mb_emit_byte (mb, CEE_LDIND_I);
5955 mono_mb_emit_stloc (mb, src_var);
5958 mono_mb_emit_ldloc (mb, src_var);
5959 mono_mb_emit_stloc (mb, conv_arg);
5960 mono_mb_emit_ldloc (mb, src_var);
5961 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5964 esize = sizeof (gpointer);
5965 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5966 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5968 esize = mono_class_native_size (eklass, NULL);
5970 /* allocate space for the native struct and store the address */
5971 mono_mb_emit_icon (mb, esize);
5972 mono_mb_emit_ldloc (mb, src_var);
5973 mono_mb_emit_byte (mb, CEE_LDLEN);
5975 if (eklass == mono_defaults.string_class) {
5976 /* Make the array bigger for the terminating null */
5977 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5978 mono_mb_emit_byte (mb, CEE_ADD);
5980 mono_mb_emit_byte (mb, CEE_MUL);
5981 mono_mb_emit_byte (mb, CEE_PREFIX1);
5982 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5983 mono_mb_emit_stloc (mb, conv_arg);
5985 mono_mb_emit_ldloc (mb, conv_arg);
5986 mono_mb_emit_stloc (mb, dest_ptr);
5988 /* Emit marshalling loop */
5989 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5990 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5991 mono_mb_emit_stloc (mb, index_var);
5992 label2 = mono_mb_get_label (mb);
5993 mono_mb_emit_ldloc (mb, index_var);
5994 mono_mb_emit_ldloc (mb, src_var);
5995 mono_mb_emit_byte (mb, CEE_LDLEN);
5996 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5998 /* Emit marshalling code */
6001 mono_mb_emit_ldloc (mb, dest_ptr);
6002 mono_mb_emit_ldloc (mb, src_var);
6003 mono_mb_emit_ldloc (mb, index_var);
6004 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6005 mono_mb_emit_icall (mb, conv_to_icall (conv));
6006 mono_mb_emit_byte (mb, CEE_STIND_I);
6008 /* set the src_ptr */
6009 mono_mb_emit_ldloc (mb, src_var);
6010 mono_mb_emit_ldloc (mb, index_var);
6011 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6012 mono_mb_emit_stloc (mb, 0);
6015 mono_mb_emit_ldloc (mb, dest_ptr);
6016 mono_mb_emit_stloc (mb, 1);
6018 /* emit valuetype conversion code */
6019 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
6022 mono_mb_emit_add_to_local (mb, index_var, 1);
6023 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6025 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6027 mono_mb_patch_branch (mb, label3);
6029 if (eklass == mono_defaults.string_class) {
6030 /* Null terminate */
6031 mono_mb_emit_ldloc (mb, dest_ptr);
6032 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6033 mono_mb_emit_byte (mb, CEE_STIND_REF);
6036 mono_mb_patch_branch (mb, label1);
6041 case MARSHAL_ACTION_CONV_OUT:
6042 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6043 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);
6044 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6047 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6048 int param_num = spec->data.array_data.param_num;
6049 MonoType *param_type;
6051 param_type = m->sig->params [param_num];
6053 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6054 char *msg = g_strdup ("Not implemented.");
6055 mono_mb_emit_exception_marshal_directive (mb, msg);
6059 mono_mb_emit_ldarg (mb, argnum);
6061 /* Create the managed array */
6062 mono_mb_emit_ldarg (mb, param_num);
6063 if (m->sig->params [param_num]->byref)
6064 // FIXME: Support other types
6065 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6066 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6067 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6068 /* Store into argument */
6069 mono_mb_emit_byte (mb, CEE_STIND_I);
6072 if (need_convert || need_free) {
6073 /* FIXME: Optimize blittable case */
6075 guint32 label1, label2, label3;
6076 int index_var, src_ptr, loc, esize;
6078 eklass = klass->element_class;
6079 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6080 esize = sizeof (gpointer);
6081 else if (eklass == mono_defaults.char_class)
6082 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6084 esize = mono_class_native_size (eklass, NULL);
6085 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6086 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6089 mono_mb_emit_ldarg (mb, argnum);
6091 mono_mb_emit_byte (mb, CEE_LDIND_I);
6092 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6094 mono_mb_emit_ldloc (mb, conv_arg);
6095 mono_mb_emit_stloc (mb, src_ptr);
6097 /* Emit marshalling loop */
6098 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6099 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6100 mono_mb_emit_stloc (mb, index_var);
6101 label2 = mono_mb_get_label (mb);
6102 mono_mb_emit_ldloc (mb, index_var);
6103 mono_mb_emit_ldarg (mb, argnum);
6105 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6106 mono_mb_emit_byte (mb, CEE_LDLEN);
6107 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6109 /* Emit marshalling code */
6111 if (eklass == mono_defaults.stringbuilder_class) {
6112 gboolean need_free2;
6113 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6115 g_assert (conv != -1);
6118 mono_mb_emit_ldarg (mb, argnum);
6120 mono_mb_emit_byte (mb, CEE_LDIND_I);
6121 mono_mb_emit_ldloc (mb, index_var);
6122 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6125 mono_mb_emit_ldloc (mb, src_ptr);
6126 mono_mb_emit_byte (mb, CEE_LDIND_I);
6128 mono_mb_emit_icall (mb, conv_to_icall (conv));
6132 mono_mb_emit_ldloc (mb, src_ptr);
6133 mono_mb_emit_byte (mb, CEE_LDIND_I);
6135 mono_mb_emit_icall (mb, mono_marshal_free);
6138 else if (eklass == mono_defaults.string_class) {
6141 mono_mb_emit_ldloc (mb, src_ptr);
6142 mono_mb_emit_byte (mb, CEE_LDIND_I);
6144 mono_mb_emit_icall (mb, mono_marshal_free);
6149 /* set the src_ptr */
6150 mono_mb_emit_ldloc (mb, src_ptr);
6151 mono_mb_emit_stloc (mb, 0);
6154 mono_mb_emit_ldarg (mb, argnum);
6156 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6157 mono_mb_emit_ldloc (mb, index_var);
6158 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6159 mono_mb_emit_stloc (mb, 1);
6161 /* emit valuetype conversion code */
6162 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6166 mono_mb_emit_ldloc (mb, src_ptr);
6167 mono_mb_emit_stloc (mb, loc);
6168 mono_mb_emit_ldloc (mb, loc);
6170 emit_struct_free (mb, eklass, loc);
6174 mono_mb_emit_add_to_local (mb, index_var, 1);
6175 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6177 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6179 mono_mb_patch_branch (mb, label1);
6180 mono_mb_patch_branch (mb, label3);
6183 if (klass->element_class->blittable) {
6184 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6186 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6189 mono_mb_emit_ldloc (mb, conv_arg);
6190 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6195 case MARSHAL_ACTION_PUSH:
6197 mono_mb_emit_ldloc_addr (mb, conv_arg);
6199 mono_mb_emit_ldloc (mb, conv_arg);
6202 case MARSHAL_ACTION_CONV_RESULT:
6203 /* fixme: we need conversions here */
6204 mono_mb_emit_stloc (mb, 3);
6207 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6209 guint32 label1, label2, label3;
6210 int index_var, src_ptr, esize, param_num, num_elem;
6211 MonoMarshalConv conv;
6212 gboolean is_string = FALSE;
6214 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6215 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6218 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6219 mono_mb_emit_exception_marshal_directive (mb, msg);
6223 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6224 mono_mb_emit_exception_marshal_directive (mb, msg);
6227 if (spec->native != MONO_NATIVE_LPARRAY) {
6228 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6229 mono_mb_emit_exception_marshal_directive (mb, msg);
6233 /* FIXME: t is from the method which is wrapped, not the delegate type */
6234 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6236 param_num = spec->data.array_data.param_num;
6237 num_elem = spec->data.array_data.num_elem;
6238 if (spec->data.array_data.elem_mult == 0)
6239 /* param_num is not specified */
6242 if (param_num == -1) {
6243 if (num_elem <= 0) {
6244 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6245 mono_mb_emit_exception_marshal_directive (mb, msg);
6250 /* FIXME: Optimize blittable case */
6252 eklass = klass->element_class;
6253 if (eklass == mono_defaults.string_class) {
6255 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6257 else if (eklass == mono_defaults.stringbuilder_class) {
6259 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6264 mono_marshal_load_type_info (eklass);
6267 esize = sizeof (gpointer);
6269 esize = mono_class_native_size (eklass, NULL);
6270 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6272 mono_mb_emit_byte (mb, CEE_LDNULL);
6273 mono_mb_emit_stloc (mb, conv_arg);
6275 /* Check param index */
6276 if (param_num != -1) {
6277 if (param_num >= m->sig->param_count) {
6278 char *msg = g_strdup ("Array size control parameter index is out of range.");
6279 mono_mb_emit_exception_marshal_directive (mb, msg);
6282 switch (m->sig->params [param_num]->type) {
6295 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6296 mono_mb_emit_exception_marshal_directive (mb, msg);
6303 mono_mb_emit_ldarg (mb, argnum);
6304 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6306 mono_mb_emit_ldarg (mb, argnum);
6307 mono_mb_emit_stloc (mb, src_ptr);
6309 /* Create managed array */
6311 * The LPArray marshalling spec says that sometimes param_num starts
6312 * from 1, sometimes it starts from 0. But MS seems to allways start
6316 if (param_num == -1) {
6317 mono_mb_emit_icon (mb, num_elem);
6319 mono_mb_emit_ldarg (mb, param_num);
6321 mono_mb_emit_icon (mb, num_elem);
6322 mono_mb_emit_byte (mb, CEE_ADD);
6324 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6327 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6328 mono_mb_emit_stloc (mb, conv_arg);
6330 if (eklass->blittable) {
6331 mono_mb_emit_ldloc (mb, conv_arg);
6332 mono_mb_emit_byte (mb, CEE_CONV_I);
6333 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6334 mono_mb_emit_byte (mb, CEE_ADD);
6335 mono_mb_emit_ldarg (mb, argnum);
6336 mono_mb_emit_ldloc (mb, conv_arg);
6337 mono_mb_emit_byte (mb, CEE_LDLEN);
6338 mono_mb_emit_icon (mb, esize);
6339 mono_mb_emit_byte (mb, CEE_MUL);
6340 mono_mb_emit_byte (mb, CEE_PREFIX1);
6341 mono_mb_emit_byte (mb, CEE_CPBLK);
6345 /* Emit marshalling loop */
6346 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6347 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6348 mono_mb_emit_stloc (mb, index_var);
6349 label2 = mono_mb_get_label (mb);
6350 mono_mb_emit_ldloc (mb, index_var);
6351 mono_mb_emit_ldloc (mb, conv_arg);
6352 mono_mb_emit_byte (mb, CEE_LDLEN);
6353 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6355 /* Emit marshalling code */
6357 g_assert (conv != -1);
6359 mono_mb_emit_ldloc (mb, conv_arg);
6360 mono_mb_emit_ldloc (mb, index_var);
6362 mono_mb_emit_ldloc (mb, src_ptr);
6363 mono_mb_emit_byte (mb, CEE_LDIND_I);
6365 mono_mb_emit_icall (mb, conv_to_icall (conv));
6366 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6369 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6370 mono_mb_emit_exception_marshal_directive (mb, msg);
6374 mono_mb_emit_add_to_local (mb, index_var, 1);
6375 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6377 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6379 mono_mb_patch_branch (mb, label1);
6380 mono_mb_patch_branch (mb, label3);
6384 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6386 guint32 label1, label2, label3;
6387 int index_var, dest_ptr, esize, param_num, num_elem;
6388 MonoMarshalConv conv;
6389 gboolean is_string = FALSE;
6392 /* Already handled in CONV_IN */
6395 /* These are already checked in CONV_IN */
6396 g_assert (!t->byref);
6397 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6398 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6400 param_num = spec->data.array_data.param_num;
6401 num_elem = spec->data.array_data.num_elem;
6403 if (spec->data.array_data.elem_mult == 0)
6404 /* param_num is not specified */
6407 if (param_num == -1) {
6408 if (num_elem <= 0) {
6409 g_assert_not_reached ();
6413 /* FIXME: Optimize blittable case */
6415 eklass = klass->element_class;
6416 if (eklass == mono_defaults.string_class) {
6418 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6420 else if (eklass == mono_defaults.stringbuilder_class) {
6422 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6427 mono_marshal_load_type_info (eklass);
6430 esize = sizeof (gpointer);
6432 esize = mono_class_native_size (eklass, NULL);
6434 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6437 mono_mb_emit_ldloc (mb, conv_arg);
6438 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6440 mono_mb_emit_ldarg (mb, argnum);
6441 mono_mb_emit_stloc (mb, dest_ptr);
6443 if (eklass->blittable) {
6445 mono_mb_emit_ldarg (mb, argnum);
6447 mono_mb_emit_ldloc (mb, conv_arg);
6448 mono_mb_emit_byte (mb, CEE_CONV_I);
6449 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6450 mono_mb_emit_byte (mb, CEE_ADD);
6452 mono_mb_emit_ldloc (mb, conv_arg);
6453 mono_mb_emit_byte (mb, CEE_LDLEN);
6454 mono_mb_emit_icon (mb, esize);
6455 mono_mb_emit_byte (mb, CEE_MUL);
6456 mono_mb_emit_byte (mb, CEE_PREFIX1);
6457 mono_mb_emit_byte (mb, CEE_CPBLK);
6461 /* Emit marshalling loop */
6462 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6463 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6464 mono_mb_emit_stloc (mb, index_var);
6465 label2 = mono_mb_get_label (mb);
6466 mono_mb_emit_ldloc (mb, index_var);
6467 mono_mb_emit_ldloc (mb, conv_arg);
6468 mono_mb_emit_byte (mb, CEE_LDLEN);
6469 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6471 /* Emit marshalling code */
6473 g_assert (conv != -1);
6476 mono_mb_emit_ldloc (mb, dest_ptr);
6479 mono_mb_emit_ldloc (mb, conv_arg);
6480 mono_mb_emit_ldloc (mb, index_var);
6482 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6484 mono_mb_emit_icall (mb, conv_to_icall (conv));
6485 mono_mb_emit_byte (mb, CEE_STIND_I);
6488 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6489 mono_mb_emit_exception_marshal_directive (mb, msg);
6493 mono_mb_emit_add_to_local (mb, index_var, 1);
6494 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6496 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6498 mono_mb_patch_branch (mb, label1);
6499 mono_mb_patch_branch (mb, label3);
6503 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6505 guint32 label1, label2, label3;
6506 int index_var, src, dest, esize;
6507 MonoMarshalConv conv = -1;
6508 gboolean is_string = FALSE;
6510 g_assert (!t->byref);
6512 eklass = klass->element_class;
6514 mono_marshal_load_type_info (eklass);
6516 if (eklass == mono_defaults.string_class) {
6518 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6521 g_assert_not_reached ();
6525 esize = sizeof (gpointer);
6526 else if (eklass == mono_defaults.char_class)
6527 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6529 esize = mono_class_native_size (eklass, NULL);
6531 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6532 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6534 mono_mb_emit_stloc (mb, src);
6535 mono_mb_emit_ldloc (mb, src);
6536 mono_mb_emit_stloc (mb, 3);
6538 /* Check for null */
6539 mono_mb_emit_ldloc (mb, src);
6540 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6542 /* Allocate native array */
6543 mono_mb_emit_icon (mb, esize);
6544 mono_mb_emit_ldloc (mb, src);
6545 mono_mb_emit_byte (mb, CEE_LDLEN);
6547 if (eklass == mono_defaults.string_class) {
6548 /* Make the array bigger for the terminating null */
6549 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6550 mono_mb_emit_byte (mb, CEE_ADD);
6552 mono_mb_emit_byte (mb, CEE_MUL);
6553 mono_mb_emit_icall (mb, mono_marshal_alloc);
6554 mono_mb_emit_stloc (mb, dest);
6555 mono_mb_emit_ldloc (mb, dest);
6556 mono_mb_emit_stloc (mb, 3);
6558 /* Emit marshalling loop */
6559 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6560 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6561 mono_mb_emit_stloc (mb, index_var);
6562 label2 = mono_mb_get_label (mb);
6563 mono_mb_emit_ldloc (mb, index_var);
6564 mono_mb_emit_ldloc (mb, src);
6565 mono_mb_emit_byte (mb, CEE_LDLEN);
6566 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6568 /* Emit marshalling code */
6570 g_assert (conv != -1);
6573 mono_mb_emit_ldloc (mb, dest);
6576 mono_mb_emit_ldloc (mb, src);
6577 mono_mb_emit_ldloc (mb, index_var);
6579 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6581 mono_mb_emit_icall (mb, conv_to_icall (conv));
6582 mono_mb_emit_byte (mb, CEE_STIND_I);
6585 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6586 mono_mb_emit_exception_marshal_directive (mb, msg);
6590 mono_mb_emit_add_to_local (mb, index_var, 1);
6591 mono_mb_emit_add_to_local (mb, dest, esize);
6593 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6595 mono_mb_patch_branch (mb, label3);
6596 mono_mb_patch_branch (mb, label1);
6600 g_assert_not_reached ();
6607 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6610 return &mono_defaults.int32_class->byval_arg;
6612 switch (spec->native) {
6613 case MONO_NATIVE_I1:
6614 case MONO_NATIVE_U1:
6615 return &mono_defaults.byte_class->byval_arg;
6616 case MONO_NATIVE_VARIANTBOOL:
6617 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6618 return &mono_defaults.int16_class->byval_arg;
6619 case MONO_NATIVE_BOOLEAN:
6620 return &mono_defaults.int32_class->byval_arg;
6622 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6623 return &mono_defaults.int32_class->byval_arg;
6629 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6631 MonoClass* conv_arg_class = mono_defaults.int32_class;
6633 switch (spec->native) {
6634 case MONO_NATIVE_I1:
6635 case MONO_NATIVE_U1:
6636 conv_arg_class = mono_defaults.byte_class;
6637 if (ldop) *ldop = CEE_LDIND_I1;
6639 case MONO_NATIVE_VARIANTBOOL:
6640 conv_arg_class = mono_defaults.int16_class;
6641 if (ldop) *ldop = CEE_LDIND_I2;
6643 case MONO_NATIVE_BOOLEAN:
6646 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6649 return conv_arg_class;
6653 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6654 MonoMarshalSpec *spec,
6655 int conv_arg, MonoType **conv_arg_type,
6656 MarshalAction action)
6660 case MARSHAL_ACTION_CONV_IN:
6662 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6664 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6667 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6668 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6670 *conv_arg_type = &conv_arg_class->this_arg;
6672 *conv_arg_type = &conv_arg_class->byval_arg;
6678 MonoMethodBuilder *mb = m->mb;
6681 case MARSHAL_ACTION_CONV_IN: {
6682 MonoType *local_type;
6684 guint8 ldc_op = CEE_LDC_I4_1;
6686 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6688 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6690 *conv_arg_type = local_type;
6691 conv_arg = mono_mb_add_local (mb, local_type);
6693 mono_mb_emit_ldarg (mb, argnum);
6695 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6696 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6697 mono_mb_emit_byte (mb, ldc_op);
6698 mono_mb_emit_stloc (mb, conv_arg);
6699 mono_mb_patch_branch (mb, label_false);
6704 case MARSHAL_ACTION_CONV_OUT:
6706 int label_false, label_end;
6710 mono_mb_emit_ldarg (mb, argnum);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6713 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6714 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6716 label_end = mono_mb_emit_branch (mb, CEE_BR);
6717 mono_mb_patch_branch (mb, label_false);
6718 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6719 mono_mb_patch_branch (mb, label_end);
6721 mono_mb_emit_byte (mb, CEE_STIND_I1);
6725 case MARSHAL_ACTION_PUSH:
6727 mono_mb_emit_ldloc_addr (mb, conv_arg);
6729 mono_mb_emit_ldloc (mb, conv_arg);
6731 mono_mb_emit_ldarg (mb, argnum);
6734 case MARSHAL_ACTION_CONV_RESULT:
6735 /* maybe we need to make sure that it fits within 8 bits */
6736 mono_mb_emit_stloc (mb, 3);
6739 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6740 MonoClass* conv_arg_class = mono_defaults.int32_class;
6741 guint8 ldop = CEE_LDIND_I4;
6742 int label_null, label_false;
6744 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6745 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6748 *conv_arg_type = &conv_arg_class->this_arg;
6750 *conv_arg_type = &conv_arg_class->byval_arg;
6753 mono_mb_emit_ldarg (mb, argnum);
6757 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6758 mono_mb_emit_ldarg (mb, argnum);
6759 mono_mb_emit_byte (mb, ldop);
6763 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6764 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6765 mono_mb_emit_stloc (mb, conv_arg);
6766 mono_mb_patch_branch (mb, label_false);
6769 mono_mb_patch_branch (mb, label_null);
6773 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6774 guint8 stop = CEE_STIND_I4;
6775 guint8 ldc_op = CEE_LDC_I4_1;
6776 int label_null,label_false, label_end;;
6781 switch (spec->native) {
6782 case MONO_NATIVE_I1:
6783 case MONO_NATIVE_U1:
6784 stop = CEE_STIND_I1;
6786 case MONO_NATIVE_VARIANTBOOL:
6787 stop = CEE_STIND_I2;
6788 ldc_op = CEE_LDC_I4_M1;
6796 mono_mb_emit_ldarg (mb, argnum);
6797 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6799 mono_mb_emit_ldarg (mb, argnum);
6800 mono_mb_emit_ldloc (mb, conv_arg);
6802 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6803 mono_mb_emit_byte (mb, ldc_op);
6804 label_end = mono_mb_emit_branch (mb, CEE_BR);
6806 mono_mb_patch_branch (mb, label_false);
6807 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6808 mono_mb_patch_branch (mb, label_end);
6810 mono_mb_emit_byte (mb, stop);
6811 mono_mb_patch_branch (mb, label_null);
6816 g_assert_not_reached ();
6823 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6824 MonoMarshalSpec *spec, int conv_arg,
6825 MonoType **conv_arg_type, MarshalAction action)
6828 MonoMethodBuilder *mb = m->mb;
6831 case MARSHAL_ACTION_CONV_IN:
6832 /* MS seems to allow this in some cases, ie. bxc #158 */
6834 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6835 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6836 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6841 case MARSHAL_ACTION_PUSH:
6842 mono_mb_emit_ldarg (mb, argnum);
6845 case MARSHAL_ACTION_CONV_RESULT:
6846 /* no conversions necessary */
6847 mono_mb_emit_stloc (mb, 3);
6858 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6859 MonoMarshalSpec *spec, int conv_arg,
6860 MonoType **conv_arg_type, MarshalAction action)
6863 MonoMethodBuilder *mb = m->mb;
6866 case MARSHAL_ACTION_PUSH:
6867 /* fixme: dont know how to marshal that. We cant simply
6868 * convert it to a one byte UTF8 character, because an
6869 * unicode character may need more that one byte in UTF8 */
6870 mono_mb_emit_ldarg (mb, argnum);
6873 case MARSHAL_ACTION_CONV_RESULT:
6874 /* fixme: we need conversions here */
6875 mono_mb_emit_stloc (mb, 3);
6886 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6887 MonoMarshalSpec *spec, int conv_arg,
6888 MonoType **conv_arg_type, MarshalAction action)
6891 MonoMethodBuilder *mb = m->mb;
6894 case MARSHAL_ACTION_PUSH:
6895 mono_mb_emit_ldarg (mb, argnum);
6898 case MARSHAL_ACTION_CONV_RESULT:
6899 /* no conversions necessary */
6900 mono_mb_emit_stloc (mb, 3);
6911 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6912 MonoMarshalSpec *spec, int conv_arg,
6913 MonoType **conv_arg_type, MarshalAction action)
6915 /* Ensure that we have marshalling info for this param */
6916 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6918 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6919 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6921 if (spec && spec->native == MONO_NATIVE_ASANY)
6922 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6925 case MONO_TYPE_VALUETYPE:
6926 if (t->data.klass == mono_defaults.handleref_class)
6927 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6929 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6930 case MONO_TYPE_STRING:
6931 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6932 case MONO_TYPE_CLASS:
6933 case MONO_TYPE_OBJECT:
6935 if (spec && spec->native == MONO_NATIVE_STRUCT)
6936 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6938 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6939 spec->native == MONO_NATIVE_IDISPATCH ||
6940 spec->native == MONO_NATIVE_INTERFACE))
6941 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6942 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6943 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6944 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6945 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6948 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6949 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6950 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6952 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6953 case MONO_TYPE_ARRAY:
6954 case MONO_TYPE_SZARRAY:
6955 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6956 case MONO_TYPE_BOOLEAN:
6957 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6959 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6960 case MONO_TYPE_CHAR:
6961 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6974 case MONO_TYPE_FNPTR:
6975 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6976 case MONO_TYPE_GENERICINST:
6977 if (mono_type_generic_inst_is_valuetype (t))
6978 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6980 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6988 * mono_marshal_emit_native_wrapper:
6989 * @image: the image to use for looking up custom marshallers
6990 * @sig: The signature of the native function
6991 * @piinfo: Marshalling information
6992 * @mspecs: Marshalling information
6993 * @aot: whenever the created method will be compiled by the AOT compiler
6994 * @method: if non-NULL, the pinvoke method to call
6995 * @check_exceptions: Whenever to check for pending exceptions after the native call
6996 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6998 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7001 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)
7003 EmitMarshalContext m;
7004 MonoMethodSignature *csig;
7006 int i, argnum, *tmp_locals;
7007 int type, param_shift = 0;
7008 static MonoMethodSignature *get_last_error_sig = NULL;
7013 memset (&m, 0, sizeof (m));
7018 /* we copy the signature, so that we can set pinvoke to 0 */
7020 /* The function address is passed as the first argument */
7021 g_assert (!sig->hasthis);
7024 csig = signature_dup (mb->method->klass->image, sig);
7032 /* we allocate local for use with emit_struct_conv() */
7033 /* allocate local 0 (pointer) src_ptr */
7034 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7035 /* allocate local 1 (pointer) dst_ptr */
7036 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7037 /* allocate local 2 (boolean) delete_old */
7038 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7040 /* delete_old = FALSE */
7041 mono_mb_emit_icon (mb, 0);
7042 mono_mb_emit_stloc (mb, 2);
7044 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7045 /* allocate local 3 to store the return value */
7046 mono_mb_add_local (mb, sig->ret);
7050 /* local 4, the local to be used when calling the suspend funcs */
7051 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7054 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7055 /* Return type custom marshaling */
7057 * Since we can't determine the return type of the unmanaged function,
7058 * we assume it returns a pointer, and pass that pointer to
7059 * MarshalNativeToManaged.
7061 csig->ret = &mono_defaults.int_class->byval_arg;
7064 /* we first do all conversions */
7065 tmp_locals = alloca (sizeof (int) * sig->param_count);
7066 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7068 for (i = 0; i < sig->param_count; i ++) {
7069 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7072 /* push all arguments */
7075 mono_mb_emit_byte (mb, CEE_LDARG_0);
7077 for (i = 0; i < sig->param_count; i++) {
7078 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7082 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7083 mono_mb_emit_stloc (mb, coop_gc_var);
7086 /* call the native method */
7088 mono_mb_emit_byte (mb, CEE_LDARG_0);
7089 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7090 mono_mb_emit_byte (mb, CEE_LDIND_I);
7091 mono_mb_emit_calli (mb, csig);
7092 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7094 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7096 g_assert_not_reached ();
7101 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7102 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7103 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7104 mono_mb_emit_calli (mb, csig);
7106 mono_mb_emit_native_call (mb, csig, func);
7110 /* Set LastError if needed */
7111 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7112 if (!get_last_error_sig) {
7113 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7114 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7115 get_last_error_sig->pinvoke = 1;
7120 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7121 * clobber its value.
7123 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7124 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7126 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7131 mono_mb_emit_ldloc (mb, coop_gc_var);
7132 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7135 /* convert the result */
7136 if (!sig->ret->byref) {
7137 MonoMarshalSpec *spec = mspecs [0];
7138 type = sig->ret->type;
7140 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7141 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7146 case MONO_TYPE_VOID:
7148 case MONO_TYPE_VALUETYPE:
7149 klass = sig->ret->data.klass;
7150 if (klass->enumtype) {
7151 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7154 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7168 case MONO_TYPE_FNPTR:
7169 case MONO_TYPE_STRING:
7170 case MONO_TYPE_CLASS:
7171 case MONO_TYPE_OBJECT:
7172 case MONO_TYPE_BOOLEAN:
7173 case MONO_TYPE_ARRAY:
7174 case MONO_TYPE_SZARRAY:
7175 case MONO_TYPE_CHAR:
7177 case MONO_TYPE_GENERICINST:
7178 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7180 case MONO_TYPE_TYPEDBYREF:
7182 g_warning ("return type 0x%02x unknown", sig->ret->type);
7183 g_assert_not_reached ();
7187 mono_mb_emit_stloc (mb, 3);
7191 * Need to call this after converting the result since MONO_VTADDR needs
7192 * to be adjacent to the call instruction.
7194 if (check_exceptions)
7195 emit_thread_interrupt_checkpoint (mb);
7197 /* we need to convert byref arguments back and free string arrays */
7198 for (i = 0; i < sig->param_count; i++) {
7199 MonoType *t = sig->params [i];
7200 MonoMarshalSpec *spec = mspecs [i + 1];
7202 argnum = i + param_shift;
7204 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7205 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7210 case MONO_TYPE_STRING:
7211 case MONO_TYPE_VALUETYPE:
7212 case MONO_TYPE_CLASS:
7213 case MONO_TYPE_OBJECT:
7214 case MONO_TYPE_SZARRAY:
7215 case MONO_TYPE_BOOLEAN:
7216 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7223 if (!MONO_TYPE_IS_VOID(sig->ret))
7224 mono_mb_emit_ldloc (mb, 3);
7226 mono_mb_emit_byte (mb, CEE_RET);
7228 #endif /* DISABLE_JIT */
7231 * mono_marshal_get_native_wrapper:
7232 * @method: The MonoMethod to wrap.
7233 * @check_exceptions: Whenever to check for pending exceptions
7235 * generates IL code for the pinvoke wrapper (the generated method
7236 * calls the unmanaged code in piinfo->addr)
7237 * The wrapper info for the wrapper is a WrapperInfo structure.
7240 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7242 MonoMethodSignature *sig, *csig;
7243 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7244 MonoMethodBuilder *mb;
7245 MonoMarshalSpec **mspecs;
7248 gboolean pinvoke = FALSE;
7251 const char *exc_class = "MissingMethodException";
7252 const char *exc_arg = NULL;
7255 g_assert (method != NULL);
7256 g_assert (mono_method_signature (method)->pinvoke);
7259 if (check_exceptions)
7260 cache = get_cache (&method->klass->image->native_wrapper_aot_check_cache, mono_aligned_addr_hash, NULL);
7262 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7264 if (check_exceptions)
7265 cache = get_cache (&method->klass->image->native_wrapper_check_cache, mono_aligned_addr_hash, NULL);
7267 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7269 if ((res = mono_marshal_find_in_cache (cache, method)))
7272 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7273 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7277 return mono_cominterop_get_native_wrapper (method);
7279 g_assert_not_reached ();
7283 sig = mono_method_signature (method);
7285 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7286 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7289 if (!piinfo->addr) {
7291 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7292 exc_arg = "Method contains unsupported native code";
7294 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7296 piinfo->addr = mono_lookup_internal_call (method);
7300 /* hack - redirect certain string constructors to CreateString */
7301 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7302 g_assert (!pinvoke);
7303 g_assert (method->string_ctor);
7304 g_assert (sig->hasthis);
7306 /* CreateString returns a value */
7307 csig = signature_dup (method->klass->image, sig);
7308 csig->ret = &mono_defaults.string_class->byval_arg;
7312 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7313 if (!strcmp ("CreateString", res->name) &&
7314 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7317 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7318 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7320 /* create a wrapper to preserve .ctor in stack trace */
7321 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7324 mono_mb_emit_byte (mb, CEE_LDARG_0);
7325 for (i = 1; i <= csig->param_count; i++)
7326 mono_mb_emit_ldarg (mb, i);
7327 mono_mb_emit_managed_call (mb, res, NULL);
7328 mono_mb_emit_byte (mb, CEE_RET);
7331 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7332 info->d.string_ctor.method = method;
7334 /* use native_wrapper_cache because internal calls are looked up there */
7335 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7336 csig->param_count + 1, info, NULL);
7343 /* exception will be thrown */
7344 piinfo->addr = NULL;
7345 g_warning ("cannot find CreateString for .ctor");
7348 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7350 mb->method->save_lmf = 1;
7353 * In AOT mode and embedding scenarios, it is possible that the icall is not
7354 * registered in the runtime doing the AOT compilation.
7356 if (!piinfo->addr && !aot) {
7358 mono_mb_emit_exception (mb, exc_class, exc_arg);
7360 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7361 info->d.managed_to_native.method = method;
7363 csig = signature_dup (method->klass->image, sig);
7365 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7366 csig->param_count + 16, info, NULL);
7372 /* internal calls: we simply push all arguments and call the method (no conversions) */
7373 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7375 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7377 csig = signature_dup (method->klass->image, sig);
7379 /* hack - string constructors returns a value */
7380 if (method->string_ctor)
7381 csig->ret = &mono_defaults.string_class->byval_arg;
7388 * Add a null check since public icalls can be called with 'call' which
7389 * does no such check.
7391 mono_mb_emit_byte (mb, CEE_LDARG_0);
7392 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7393 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7394 mono_mb_patch_branch (mb, pos);
7396 mono_mb_emit_byte (mb, CEE_LDARG_0);
7399 for (i = 0; i < sig->param_count; i++)
7400 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7404 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7405 mono_mb_emit_calli (mb, csig);
7407 g_assert (piinfo->addr);
7408 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7410 if (check_exceptions)
7411 emit_thread_interrupt_checkpoint (mb);
7412 mono_mb_emit_byte (mb, CEE_RET);
7414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7415 info->d.managed_to_native.method = method;
7417 csig = signature_dup (method->klass->image, csig);
7419 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7428 g_assert (piinfo->addr);
7431 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7432 mono_method_get_marshal_info (method, mspecs);
7434 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7436 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7437 info->d.managed_to_native.method = method;
7439 csig = signature_dup (method->klass->image, sig);
7441 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7446 for (i = sig->param_count; i >= 0; i--)
7448 mono_metadata_free_marshal_spec (mspecs [i]);
7452 /* mono_method_print_code (res); */
7458 * mono_marshal_get_native_func_wrapper:
7459 * @image: The image to use for memory allocation and for looking up custom marshallers.
7460 * @sig: The signature of the function
7461 * @func: The native function to wrap
7463 * Returns a wrapper method around native functions, similar to the pinvoke
7467 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7468 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7470 MonoMethodSignature *csig;
7472 SignaturePointerPair key, *new_key;
7473 MonoMethodBuilder *mb;
7482 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7483 if ((res = mono_marshal_find_in_cache (cache, &key)))
7486 name = g_strdup_printf ("wrapper_native_%p", func);
7487 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7488 mb->method->save_lmf = 1;
7491 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7494 csig = signature_dup (image, sig);
7497 new_key = g_new (SignaturePointerPair,1);
7498 new_key->sig = csig;
7499 new_key->pointer = func;
7501 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7507 mono_marshal_set_wrapper_info (res, NULL);
7513 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7517 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7519 MonoMethodSignature *sig, *csig;
7520 MonoMethodBuilder *mb;
7525 MonoMethodPInvoke mpiinfo;
7526 MonoMethodPInvoke *piinfo = &mpiinfo;
7527 MonoMarshalSpec **mspecs;
7528 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7529 MonoImage *image = invoke->klass->image;
7532 // FIXME: include UnmanagedFunctionPointerAttribute info
7535 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7537 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7538 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7541 memset (&mpiinfo, 0, sizeof (mpiinfo));
7542 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7544 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7545 mono_method_get_marshal_info (invoke, mspecs);
7546 /* Freed below so don't alloc from mempool */
7547 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7550 name = g_strdup_printf ("wrapper_aot_native");
7551 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7552 mb->method->save_lmf = 1;
7555 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7558 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7559 info->d.managed_to_native.method = invoke;
7561 g_assert (!sig->hasthis);
7562 csig = signature_dup_add_this (image, sig, mono_defaults.object_class);
7564 res = mono_mb_create_and_cache_full (cache, invoke,
7565 mb, csig, csig->param_count + 16,
7569 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7571 mono_metadata_free_marshal_spec (mspecs [i]);
7579 * mono_marshal_emit_managed_wrapper:
7581 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7582 * the delegate which wraps the managed method to be called. For closed delegates,
7583 * it could have fewer parameters than the method it wraps.
7584 * THIS_LOC is the memory location where the target of the delegate is stored.
7587 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7590 MonoMethodSignature *sig, *csig;
7596 /* we first do all conversions */
7597 for (i = 0; i < sig->param_count; i ++) {
7598 MonoType *t = sig->params [i];
7601 case MONO_TYPE_OBJECT:
7602 case MONO_TYPE_CLASS:
7603 case MONO_TYPE_VALUETYPE:
7604 case MONO_TYPE_ARRAY:
7605 case MONO_TYPE_SZARRAY:
7606 case MONO_TYPE_STRING:
7607 case MONO_TYPE_BOOLEAN:
7608 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7612 if (!sig->ret->byref) {
7613 switch (sig->ret->type) {
7614 case MONO_TYPE_STRING:
7615 csig->ret = &mono_defaults.int_class->byval_arg;
7622 MonoMethodSignature *sig, *csig;
7624 gboolean closed = FALSE;
7632 /* allocate local 0 (pointer) src_ptr */
7633 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7634 /* allocate local 1 (pointer) dst_ptr */
7635 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7636 /* allocate local 2 (boolean) delete_old */
7637 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7639 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7640 /* Closed delegate */
7641 g_assert (sig->param_count == invoke_sig->param_count + 1);
7643 /* Use a new signature without the first argument */
7644 sig = mono_metadata_signature_dup (sig);
7645 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7646 sig->param_count --;
7649 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7650 /* allocate local 3 to store the return value */
7651 mono_mb_add_local (mb, sig->ret);
7654 /* local 4, the local to be used when calling the reset_blocking funcs */
7655 /* tons of code hardcode 3 to be the return var */
7656 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7659 mono_mb_emit_icon (mb, 0);
7660 mono_mb_emit_stloc (mb, 2);
7663 * Might need to attach the thread to the JIT or change the
7664 * domain for the callback.
7666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7667 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7670 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7671 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7672 mono_mb_emit_stloc (mb, coop_gc_var);
7675 /* we first do all conversions */
7676 tmp_locals = alloca (sizeof (int) * sig->param_count);
7677 for (i = 0; i < sig->param_count; i ++) {
7678 MonoType *t = sig->params [i];
7681 case MONO_TYPE_OBJECT:
7682 case MONO_TYPE_CLASS:
7683 case MONO_TYPE_VALUETYPE:
7684 case MONO_TYPE_ARRAY:
7685 case MONO_TYPE_SZARRAY:
7686 case MONO_TYPE_STRING:
7687 case MONO_TYPE_BOOLEAN:
7688 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7697 emit_thread_interrupt_checkpoint (mb);
7700 if (target_handle) {
7701 mono_mb_emit_icon (mb, (gint32)target_handle);
7702 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7705 g_assert_not_reached ();
7707 } else if (closed) {
7708 mono_mb_emit_icon (mb, (gint32)target_handle);
7709 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7712 for (i = 0; i < sig->param_count; i++) {
7713 MonoType *t = sig->params [i];
7715 if (tmp_locals [i]) {
7717 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7719 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7722 mono_mb_emit_ldarg (mb, i);
7725 mono_mb_emit_managed_call (mb, method, NULL);
7727 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7728 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7729 } else if (!sig->ret->byref) {
7730 switch (sig->ret->type) {
7731 case MONO_TYPE_VOID:
7733 case MONO_TYPE_BOOLEAN:
7736 case MONO_TYPE_CHAR:
7748 case MONO_TYPE_OBJECT:
7749 mono_mb_emit_stloc (mb, 3);
7751 case MONO_TYPE_STRING:
7752 csig->ret = &mono_defaults.int_class->byval_arg;
7753 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7755 case MONO_TYPE_VALUETYPE:
7756 case MONO_TYPE_CLASS:
7757 case MONO_TYPE_SZARRAY:
7758 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7761 g_warning ("return type 0x%02x unknown", sig->ret->type);
7762 g_assert_not_reached ();
7765 mono_mb_emit_stloc (mb, 3);
7768 /* Convert byref arguments back */
7769 for (i = 0; i < sig->param_count; i ++) {
7770 MonoType *t = sig->params [i];
7771 MonoMarshalSpec *spec = mspecs [i + 1];
7773 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7774 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7776 else if (t->byref) {
7778 case MONO_TYPE_CLASS:
7779 case MONO_TYPE_VALUETYPE:
7780 case MONO_TYPE_OBJECT:
7781 case MONO_TYPE_STRING:
7782 case MONO_TYPE_BOOLEAN:
7783 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7789 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7790 /* The [Out] information is encoded in the delegate signature */
7792 case MONO_TYPE_SZARRAY:
7793 case MONO_TYPE_CLASS:
7794 case MONO_TYPE_VALUETYPE:
7795 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7798 g_assert_not_reached ();
7804 /* XXX merge reset_blocking_end with detach */
7805 mono_mb_emit_ldloc (mb, coop_gc_var);
7806 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7809 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7810 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7812 if (m->retobj_var) {
7813 mono_mb_emit_ldloc (mb, m->retobj_var);
7814 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7815 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7818 if (!MONO_TYPE_IS_VOID(sig->ret))
7819 mono_mb_emit_ldloc (mb, 3);
7820 mono_mb_emit_byte (mb, CEE_RET);
7829 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7831 MonoMethodSignature *sig;
7836 * Under windows, delegates passed to native code must use the STDCALL
7837 * calling convention.
7839 csig->call_convention = MONO_CALL_STDCALL;
7842 sig = mono_method_signature (method);
7844 /* Change default calling convention if needed */
7845 /* Why is this a modopt ? */
7846 if (sig->ret && sig->ret->num_mods) {
7847 for (i = 0; i < sig->ret->num_mods; ++i) {
7849 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7850 g_assert (mono_error_ok (&error));
7851 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7852 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7853 csig->call_convention = MONO_CALL_C;
7854 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7855 csig->call_convention = MONO_CALL_STDCALL;
7856 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7857 csig->call_convention = MONO_CALL_FASTCALL;
7858 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7859 csig->call_convention = MONO_CALL_THISCALL;
7866 * generates IL code to call managed methods from unmanaged code
7867 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7870 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7872 static MonoClass *UnmanagedFunctionPointerAttribute;
7873 MonoMethodSignature *sig, *csig, *invoke_sig;
7874 MonoMethodBuilder *mb;
7875 MonoMethod *res, *invoke;
7876 MonoMarshalSpec **mspecs;
7877 MonoMethodPInvoke piinfo;
7880 EmitMarshalContext m;
7882 g_assert (method != NULL);
7883 g_assert (!mono_method_signature (method)->pinvoke);
7886 * FIXME: Should cache the method+delegate type pair, since the same method
7887 * could be called with different delegates, thus different marshalling
7890 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7891 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7894 invoke = mono_get_delegate_invoke (delegate_klass);
7895 invoke_sig = mono_method_signature (invoke);
7897 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7898 mono_method_get_marshal_info (invoke, mspecs);
7900 sig = mono_method_signature (method);
7902 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7904 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7905 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7907 /* we copy the signature, so that we can modify it */
7909 /* Need to free this later */
7910 csig = mono_metadata_signature_dup (invoke_sig);
7912 csig = signature_dup (method->klass->image, invoke_sig);
7916 memset (&m, 0, sizeof (m));
7922 m.image = method->klass->image;
7924 mono_marshal_set_callconv_from_modopt (invoke, csig);
7926 /* Handle the UnmanagedFunctionPointerAttribute */
7927 if (!UnmanagedFunctionPointerAttribute)
7928 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7930 /* The attribute is only available in Net 2.0 */
7931 if (UnmanagedFunctionPointerAttribute) {
7932 MonoCustomAttrInfo *cinfo;
7933 MonoCustomAttrEntry *attr;
7936 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7937 * contents of the attribute without constructing it, as that might not be
7938 * possible when running in cross-compiling mode.
7940 cinfo = mono_custom_attrs_from_class (delegate_klass);
7943 for (i = 0; i < cinfo->num_attrs; ++i) {
7944 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7945 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7946 attr = &cinfo->attrs [i];
7952 MonoArray *typed_args, *named_args;
7953 CattrNamedArg *arginfo;
7957 MonoBoolean set_last_error = 0;
7960 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7961 g_assert (mono_error_ok (&error));
7962 g_assert (mono_array_length (typed_args) == 1);
7965 o = mono_array_get (typed_args, MonoObject*, 0);
7966 call_conv = *(gint32*)mono_object_unbox (o);
7969 for (i = 0; i < mono_array_length (named_args); ++i) {
7970 CattrNamedArg *narg = &arginfo [i];
7972 o = mono_array_get (named_args, MonoObject*, i);
7974 g_assert (narg->field);
7975 if (!strcmp (narg->field->name, "CharSet")) {
7976 charset = *(gint32*)mono_object_unbox (o);
7977 } else if (!strcmp (narg->field->name, "SetLastError")) {
7978 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7979 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7980 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7981 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7982 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7984 g_assert_not_reached ();
7990 memset (&piinfo, 0, sizeof (piinfo));
7992 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7994 csig->call_convention = call_conv - 1;
7997 if (cinfo && !cinfo->cached)
7998 mono_custom_attrs_free (cinfo);
8001 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8003 if (!target_handle) {
8006 // FIXME: Associate it with the method+delegate_klass pair
8007 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8008 info->d.native_to_managed.method = method;
8009 info->d.native_to_managed.klass = delegate_klass;
8011 res = mono_mb_create_and_cache_full (cache, method,
8012 mb, csig, sig->param_count + 16,
8018 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8022 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8024 mono_metadata_free_marshal_spec (mspecs [i]);
8027 /* mono_method_print_code (res); */
8033 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8036 MonoMethodSignature *sig;
8037 MonoMethodBuilder *mb;
8042 method = mono_get_method (image, token, NULL);
8045 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8046 MonoMethodSignature *csig;
8047 MonoMarshalSpec **mspecs;
8048 EmitMarshalContext m;
8050 sig = mono_method_signature (method);
8051 g_assert (!sig->hasthis);
8053 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8054 mono_method_get_marshal_info (method, mspecs);
8056 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8057 csig = signature_dup (image, sig);
8061 memset (&m, 0, sizeof (m));
8069 mono_marshal_set_callconv_from_modopt (method, csig);
8071 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8073 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8078 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8081 for (i = sig->param_count; i >= 0; i--)
8083 mono_metadata_free_marshal_spec (mspecs [i]);
8086 return mono_compile_method (method);
8089 sig = mono_method_signature (method);
8090 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8092 param_count = sig->param_count + sig->hasthis;
8094 for (i = 0; i < param_count; i++)
8095 mono_mb_emit_ldarg (mb, i);
8097 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8098 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8100 mono_mb_emit_op (mb, CEE_CALL, method);
8101 mono_mb_emit_byte (mb, CEE_RET);
8106 method = mono_mb_create (mb, sig, param_count, NULL);
8109 return mono_compile_method (method);
8115 * The code directly following this is the cache hit, value positive branch
8117 * This function takes a new method builder with 0 locals and adds two locals
8118 * to create multiple out-branches and the fall through state of having the object
8119 * on the stack after a cache miss
8122 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8123 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8124 MonoMethodBuilder *mb)
8128 /* allocate local 0 (pointer) obj_vtable */
8129 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8130 /* allocate local 1 (pointer) cached_vtable */
8131 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8134 mono_mb_emit_ldarg (mb, obj_arg_position);
8135 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8137 /*obj_vtable = obj->vtable;*/
8138 mono_mb_emit_ldarg (mb, obj_arg_position);
8139 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8140 mono_mb_emit_byte (mb, CEE_LDIND_I);
8141 mono_mb_emit_stloc (mb, 0);
8143 /* cached_vtable = *cache*/
8144 mono_mb_emit_ldarg (mb, cache_arg_position);
8145 mono_mb_emit_byte (mb, CEE_LDIND_I);
8146 mono_mb_emit_stloc (mb, 1);
8148 mono_mb_emit_ldloc (mb, 1);
8149 mono_mb_emit_byte (mb, CEE_LDC_I4);
8150 mono_mb_emit_i4 (mb, ~0x1);
8151 mono_mb_emit_byte (mb, CEE_CONV_I);
8152 mono_mb_emit_byte (mb, CEE_AND);
8153 mono_mb_emit_ldloc (mb, 0);
8154 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8155 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8157 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8158 mono_mb_emit_ldloc (mb, 1);
8159 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8160 mono_mb_emit_byte (mb, CEE_CONV_U);
8161 mono_mb_emit_byte (mb, CEE_AND);
8162 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8163 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8166 mono_mb_patch_branch (mb, cache_miss_pos);
8169 mono_mb_emit_ldarg (mb, obj_arg_position);
8170 mono_mb_emit_ldarg (mb, class_arg_position);
8171 mono_mb_emit_ldarg (mb, cache_arg_position);
8172 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8175 #endif /* DISABLE_JIT */
8178 * This does the equivalent of mono_object_castclass_with_cache.
8179 * The wrapper info for the wrapper is a WrapperInfo structure.
8182 mono_marshal_get_castclass_with_cache (void)
8184 static MonoMethod *cached;
8186 MonoMethodBuilder *mb;
8187 MonoMethodSignature *sig;
8188 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8191 const int obj_arg_position = 0;
8192 const int class_arg_position = 1;
8193 const int cache_arg_position = 2;
8198 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8199 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8200 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8201 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8202 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8203 sig->ret = &mono_defaults.object_class->byval_arg;
8207 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8208 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8209 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8212 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8213 mono_mb_emit_ldarg (mb, obj_arg_position);
8214 mono_mb_emit_byte (mb, CEE_RET);
8217 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8218 mono_mb_patch_branch (mb, invalid_cast_pos);
8219 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8222 mono_mb_patch_branch (mb, return_null_pos);
8223 mono_mb_emit_byte (mb, CEE_LDNULL);
8224 mono_mb_emit_byte (mb, CEE_RET);
8225 #endif /* DISABLE_JIT */
8227 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8228 res = mono_mb_create (mb, sig, 8, info);
8231 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8232 mono_free_method (res);
8233 mono_metadata_free_method_signature (sig);
8241 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8243 MonoObject *isinst = mono_object_isinst (obj, klass);
8245 #ifndef DISABLE_REMOTING
8246 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8250 uintptr_t cache_update = (uintptr_t)obj->vtable;
8252 cache_update = cache_update | 0x1;
8254 *cache = cache_update;
8260 * This does the equivalent of mono_object_isinst_with_cache.
8261 * The wrapper info for the wrapper is a WrapperInfo structure.
8264 mono_marshal_get_isinst_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;
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, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8281 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8283 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8285 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8287 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8288 sig->ret = &mono_defaults.object_class->byval_arg;
8292 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8293 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8294 // Return the object gotten via the slow path.
8295 mono_mb_emit_byte (mb, CEE_RET);
8298 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8299 mono_mb_patch_branch (mb, return_null_pos);
8300 mono_mb_emit_byte (mb, CEE_LDNULL);
8301 mono_mb_emit_byte (mb, CEE_RET);
8304 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8305 mono_mb_emit_ldarg (mb, 0);
8306 mono_mb_emit_byte (mb, CEE_RET);
8309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_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_get_isinst:
8324 * @klass: the type of the field
8326 * This method generates a function which can be used to check if an object is
8327 * an instance of the given type, icluding the case where the object is a proxy.
8328 * The generated function has the following signature:
8329 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8332 mono_marshal_get_isinst (MonoClass *klass)
8334 static MonoMethodSignature *isint_sig = NULL;
8338 int pos_was_ok, pos_end;
8339 #ifndef DISABLE_REMOTING
8340 int pos_end2, pos_failed;
8343 MonoMethodBuilder *mb;
8345 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8346 if ((res = mono_marshal_find_in_cache (cache, klass)))
8350 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8351 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8352 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8353 isint_sig->pinvoke = 0;
8356 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8357 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8360 mb->method->save_lmf = 1;
8363 /* check if the object is a proxy that needs special cast */
8364 mono_mb_emit_ldarg (mb, 0);
8365 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8366 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8368 /* The result of MONO_CISINST can be:
8369 0) the type check succeeded
8370 1) the type check did not succeed
8371 2) a CanCastTo call is needed */
8372 #ifndef DISABLE_REMOTING
8373 mono_mb_emit_byte (mb, CEE_DUP);
8374 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8376 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8377 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8379 /* get the real proxy from the transparent proxy*/
8381 mono_mb_emit_ldarg (mb, 0);
8382 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8383 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8387 mono_mb_patch_branch (mb, pos_failed);
8388 mono_mb_emit_byte (mb, CEE_LDNULL);
8389 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8393 mono_mb_patch_branch (mb, pos_was_ok);
8394 mono_mb_emit_byte (mb, CEE_POP);
8395 mono_mb_emit_ldarg (mb, 0);
8399 mono_mb_patch_branch (mb, pos_end);
8400 mono_mb_patch_branch (mb, pos_end2);
8401 mono_mb_emit_byte (mb, CEE_RET);
8403 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8407 mono_mb_emit_byte (mb, CEE_LDNULL);
8408 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8412 mono_mb_patch_branch (mb, pos_was_ok);
8413 mono_mb_emit_ldarg (mb, 0);
8417 mono_mb_patch_branch (mb, pos_end);
8418 mono_mb_emit_byte (mb, CEE_RET);
8419 #endif /* DISABLE_REMOTING */
8420 #endif /* DISABLE_JIT */
8422 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8423 info->d.proxy.klass = klass;
8424 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8431 * mono_marshal_get_castclass:
8432 * @klass: the type of the field
8434 * This method generates a function which can be used to cast an object to
8435 * an instance of the given type, icluding the case where the object is a proxy.
8436 * The generated function has the following signature:
8437 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8438 * The wrapper info for the wrapper is a WrapperInfo structure.
8441 mono_marshal_get_castclass (MonoClass *klass)
8443 static MonoMethodSignature *castclass_sig = NULL;
8446 #ifndef DISABLE_REMOTING
8447 int pos_was_ok, pos_was_ok2;
8450 MonoMethodBuilder *mb;
8453 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8454 if ((res = mono_marshal_find_in_cache (cache, klass)))
8457 if (!castclass_sig) {
8458 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8459 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8460 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8461 castclass_sig->pinvoke = 0;
8464 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8465 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8468 mb->method->save_lmf = 1;
8471 /* check if the object is a proxy that needs special cast */
8472 mono_mb_emit_ldarg (mb, 0);
8473 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8474 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8476 /* The result of MONO_CCASTCLASS can be:
8477 0) the cast is valid
8478 1) cast of unknown proxy type
8479 or an exception if the cast is is invalid
8481 #ifndef DISABLE_REMOTING
8482 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8484 /* get the real proxy from the transparent proxy*/
8486 mono_mb_emit_ldarg (mb, 0);
8487 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8488 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8491 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8494 mono_mb_patch_branch (mb, pos_was_ok);
8495 mono_mb_patch_branch (mb, pos_was_ok2);
8497 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8498 mono_mb_emit_byte (mb, CEE_POP);
8499 #endif /* DISABLE_REMOTING */
8501 mono_mb_emit_ldarg (mb, 0);
8504 mono_mb_emit_byte (mb, CEE_RET);
8505 #endif /* DISABLE_JIT */
8507 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8509 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8517 * mono_marshal_get_struct_to_ptr:
8520 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8521 * The wrapper info for the wrapper is a WrapperInfo structure.
8524 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8526 MonoMethodBuilder *mb;
8527 static MonoMethod *stoptr = NULL;
8531 g_assert (klass != NULL);
8533 mono_marshal_load_type_info (klass);
8535 if (klass->marshal_info->str_to_ptr)
8536 return klass->marshal_info->str_to_ptr;
8539 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8542 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8545 if (klass->blittable) {
8546 mono_mb_emit_byte (mb, CEE_LDARG_1);
8547 mono_mb_emit_byte (mb, CEE_LDARG_0);
8548 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8549 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8550 mono_mb_emit_byte (mb, CEE_PREFIX1);
8551 mono_mb_emit_byte (mb, CEE_CPBLK);
8554 /* allocate local 0 (pointer) src_ptr */
8555 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8556 /* allocate local 1 (pointer) dst_ptr */
8557 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8558 /* allocate local 2 (boolean) delete_old */
8559 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8560 mono_mb_emit_byte (mb, CEE_LDARG_2);
8561 mono_mb_emit_stloc (mb, 2);
8563 /* initialize src_ptr to point to the start of object data */
8564 mono_mb_emit_byte (mb, CEE_LDARG_0);
8565 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8566 mono_mb_emit_stloc (mb, 0);
8568 /* initialize dst_ptr */
8569 mono_mb_emit_byte (mb, CEE_LDARG_1);
8570 mono_mb_emit_stloc (mb, 1);
8572 emit_struct_conv (mb, klass, FALSE);
8575 mono_mb_emit_byte (mb, CEE_RET);
8577 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8578 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8581 klass->marshal_info->str_to_ptr = res;
8586 * mono_marshal_get_ptr_to_struct:
8589 * generates IL code for PtrToStructure (IntPtr src, object structure)
8590 * The wrapper info for the wrapper is a WrapperInfo structure.
8593 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8595 MonoMethodBuilder *mb;
8596 static MonoMethodSignature *ptostr = NULL;
8600 g_assert (klass != NULL);
8602 mono_marshal_load_type_info (klass);
8604 if (klass->marshal_info->ptr_to_str)
8605 return klass->marshal_info->ptr_to_str;
8608 MonoMethodSignature *sig;
8610 /* Create the signature corresponding to
8611 static void PtrToStructure (IntPtr ptr, object structure);
8612 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8613 sig = mono_create_icall_signature ("void ptr object");
8614 sig = signature_dup (mono_defaults.corlib, sig);
8616 mono_memory_barrier ();
8620 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8623 if (klass->blittable) {
8624 mono_mb_emit_byte (mb, CEE_LDARG_1);
8625 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8626 mono_mb_emit_byte (mb, CEE_LDARG_0);
8627 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8628 mono_mb_emit_byte (mb, CEE_PREFIX1);
8629 mono_mb_emit_byte (mb, CEE_CPBLK);
8632 /* allocate local 0 (pointer) src_ptr */
8633 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8634 /* allocate local 1 (pointer) dst_ptr */
8635 mono_mb_add_local (mb, &klass->this_arg);
8637 /* initialize src_ptr to point to the start of object data */
8638 mono_mb_emit_byte (mb, CEE_LDARG_0);
8639 mono_mb_emit_stloc (mb, 0);
8641 /* initialize dst_ptr */
8642 mono_mb_emit_byte (mb, CEE_LDARG_1);
8643 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8644 mono_mb_emit_stloc (mb, 1);
8646 emit_struct_conv (mb, klass, TRUE);
8649 mono_mb_emit_byte (mb, CEE_RET);
8651 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8652 res = mono_mb_create (mb, ptostr, 0, info);
8655 klass->marshal_info->ptr_to_str = res;
8660 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8661 * This is used to avoid infinite recursion since it is hard to determine where to
8662 * replace a method with its synchronized wrapper, and where not.
8663 * The runtime should execute METHOD instead of the wrapper.
8664 * The wrapper info for the wrapper is a WrapperInfo structure.
8667 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8669 MonoMethodBuilder *mb;
8671 MonoMethodSignature *sig;
8673 MonoGenericContext *ctx = NULL;
8674 MonoGenericContainer *container = NULL;
8676 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8677 ctx = &((MonoMethodInflated*)method)->context;
8678 method = ((MonoMethodInflated*)method)->declaring;
8679 container = mono_method_get_generic_container (method);
8681 container = method->klass->generic_container;
8682 g_assert (container);
8685 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8687 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8688 mono_mb_emit_byte (mb, CEE_RET);
8690 sig = signature_dup (method->klass->image, mono_method_signature (method));
8692 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8693 info->d.synchronized_inner.method = method;
8694 res = mono_mb_create (mb, sig, 0, info);
8698 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8699 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8705 * generates IL code for the synchronized wrapper: the generated method
8706 * calls METHOD while locking 'this' or the parent type.
8709 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8711 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8712 MonoMethodSignature *sig;
8713 MonoExceptionClause *clause;
8714 MonoMethodBuilder *mb;
8717 int i, pos, this_local, ret_local = 0;
8718 MonoGenericContext *ctx = NULL;
8719 MonoMethod *orig_method = NULL;
8720 MonoGenericContainer *container = NULL;
8724 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8727 /* FIXME: Support generic methods too */
8728 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8729 orig_method = method;
8730 ctx = &((MonoMethodInflated*)method)->context;
8731 method = ((MonoMethodInflated*)method)->declaring;
8732 container = mono_method_get_generic_container (method);
8734 container = method->klass->generic_container;
8735 g_assert (container);
8742 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8743 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8747 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8748 if ((res = mono_marshal_find_in_cache (cache, method)))
8752 sig = signature_dup (method->klass->image, mono_method_signature (method));
8755 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8759 if (!MONO_TYPE_IS_VOID (sig->ret))
8760 ret_local = mono_mb_add_local (mb, sig->ret);
8763 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8764 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8766 /* This will throw the type load exception when the wrapper is compiled */
8767 mono_mb_emit_byte (mb, CEE_LDNULL);
8768 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8769 mono_mb_emit_byte (mb, CEE_POP);
8771 if (!MONO_TYPE_IS_VOID (sig->ret))
8772 mono_mb_emit_ldloc (mb, ret_local);
8773 mono_mb_emit_byte (mb, CEE_RET);
8776 res = mono_mb_create_and_cache (cache, method,
8777 mb, sig, sig->param_count + 16);
8785 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8787 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8788 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8791 mono_marshal_lock ();
8793 if (!enter_method) {
8794 MonoMethodDesc *desc;
8796 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8797 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8798 g_assert (enter_method);
8799 mono_method_desc_free (desc);
8801 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8802 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8803 g_assert (exit_method);
8804 mono_method_desc_free (desc);
8806 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8807 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8808 g_assert (gettypefromhandle_method);
8809 mono_method_desc_free (desc);
8812 mono_marshal_unlock ();
8815 /* Push this or the type object */
8816 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8817 /* We have special handling for this in the JIT */
8818 int index = mono_mb_add_data (mb, method->klass);
8819 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8820 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8821 mono_mb_emit_i4 (mb, index);
8823 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8826 mono_mb_emit_ldarg (mb, 0);
8827 mono_mb_emit_stloc (mb, this_local);
8829 /* Call Monitor::Enter() */
8830 mono_mb_emit_ldloc (mb, this_local);
8831 mono_mb_emit_managed_call (mb, enter_method, NULL);
8833 clause->try_offset = mono_mb_get_label (mb);
8835 /* Call the method */
8837 mono_mb_emit_ldarg (mb, 0);
8838 for (i = 0; i < sig->param_count; i++)
8839 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8843 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8844 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8846 mono_mb_emit_managed_call (mb, method, NULL);
8849 if (!MONO_TYPE_IS_VOID (sig->ret))
8850 mono_mb_emit_stloc (mb, ret_local);
8852 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8854 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8855 clause->handler_offset = mono_mb_get_label (mb);
8857 /* Call Monitor::Exit() */
8858 mono_mb_emit_ldloc (mb, this_local);
8859 mono_mb_emit_managed_call (mb, exit_method, NULL);
8860 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8862 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8864 mono_mb_patch_branch (mb, pos);
8865 if (!MONO_TYPE_IS_VOID (sig->ret))
8866 mono_mb_emit_ldloc (mb, ret_local);
8867 mono_mb_emit_byte (mb, CEE_RET);
8869 mono_mb_set_clauses (mb, 1, clause);
8874 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8875 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8877 res = mono_mb_create_and_cache (cache, method,
8878 mb, sig, sig->param_count + 16);
8887 * the returned method calls 'method' unboxing the this argument
8890 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8892 MonoMethodSignature *sig = mono_method_signature (method);
8894 MonoMethodBuilder *mb;
8898 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8899 if ((res = mono_marshal_find_in_cache (cache, method)))
8902 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8904 g_assert (sig->hasthis);
8907 mono_mb_emit_ldarg (mb, 0);
8908 mono_mb_emit_icon (mb, sizeof (MonoObject));
8909 mono_mb_emit_byte (mb, CEE_ADD);
8910 for (i = 0; i < sig->param_count; ++i)
8911 mono_mb_emit_ldarg (mb, i + 1);
8912 mono_mb_emit_managed_call (mb, method, NULL);
8913 mono_mb_emit_byte (mb, CEE_RET);
8916 res = mono_mb_create_and_cache (cache, method,
8917 mb, sig, sig->param_count + 16);
8920 /* mono_method_print_code (res); */
8926 STELEMREF_OBJECT, /*no check at all*/
8927 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8928 STELEMREF_CLASS, /*only the klass->parents check*/
8929 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8930 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8931 STELEMREF_KIND_COUNT
8934 static const char *strelemref_wrapper_name[] = {
8935 "object", "sealed_class", "class", "interface", "complex"
8939 is_monomorphic_array (MonoClass *klass)
8941 MonoClass *element_class;
8942 if (klass->rank != 1)
8945 element_class = klass->element_class;
8946 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8950 get_virtual_stelemref_kind (MonoClass *element_class)
8952 if (element_class == mono_defaults.object_class)
8953 return STELEMREF_OBJECT;
8954 if (is_monomorphic_array (element_class))
8955 return STELEMREF_SEALED_CLASS;
8956 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8957 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8958 #ifdef COMPRESSED_INTERFACE_BITMAP
8959 return STELEMREF_COMPLEX;
8961 return STELEMREF_INTERFACE;
8963 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8964 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8965 return STELEMREF_COMPLEX;
8966 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8967 return STELEMREF_SEALED_CLASS;
8968 return STELEMREF_CLASS;
8974 load_array_element_address (MonoMethodBuilder *mb)
8976 mono_mb_emit_ldarg (mb, 0);
8977 mono_mb_emit_ldarg (mb, 1);
8978 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8982 load_array_class (MonoMethodBuilder *mb, int aklass)
8984 mono_mb_emit_ldarg (mb, 0);
8985 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8986 mono_mb_emit_byte (mb, CEE_LDIND_I);
8987 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8988 mono_mb_emit_byte (mb, CEE_LDIND_I);
8989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8990 mono_mb_emit_byte (mb, CEE_LDIND_I);
8991 mono_mb_emit_stloc (mb, aklass);
8995 load_value_class (MonoMethodBuilder *mb, int vklass)
8997 mono_mb_emit_ldarg (mb, 2);
8998 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8999 mono_mb_emit_byte (mb, CEE_LDIND_I);
9000 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9001 mono_mb_emit_byte (mb, CEE_LDIND_I);
9002 mono_mb_emit_stloc (mb, vklass);
9008 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9010 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9011 printf ("slow vstore of %s\n", name);
9017 * The wrapper info for the wrapper is a WrapperInfo structure.
9020 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9021 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9022 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9023 * - Add a case for arrays of arrays.
9026 get_virtual_stelemref_wrapper (int kind)
9028 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9029 static MonoMethodSignature *signature;
9030 MonoMethodBuilder *mb;
9033 const char *param_names [16];
9035 int aklass, vklass, vtable, uiid;
9036 int array_slot_addr;
9039 if (cached_methods [kind])
9040 return cached_methods [kind];
9042 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9043 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9047 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9049 /* void this::stelemref (size_t idx, void* value) */
9050 sig->ret = &mono_defaults.void_class->byval_arg;
9051 sig->hasthis = TRUE;
9052 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9053 sig->params [1] = &mono_defaults.object_class->byval_arg;
9058 param_names [0] = "index";
9059 param_names [1] = "value";
9060 mono_mb_set_param_names (mb, param_names);
9062 /*For now simply call plain old stelemref*/
9064 case STELEMREF_OBJECT:
9065 /* ldelema (implicit bound check) */
9066 load_array_element_address (mb);
9068 mono_mb_emit_ldarg (mb, 2);
9069 mono_mb_emit_byte (mb, CEE_STIND_REF);
9070 mono_mb_emit_byte (mb, CEE_RET);
9073 case STELEMREF_COMPLEX:
9075 <ldelema (bound check)>
9078 if (!mono_object_isinst (value, aklass))
9082 *array_slot_addr = value;
9085 throw new ArrayTypeMismatchException ();
9088 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9089 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9093 /*Use this to debug/record stores that are going thru the slow path*/
9094 MonoMethodSignature *csig;
9095 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9096 csig->ret = &mono_defaults.void_class->byval_arg;
9097 csig->params [0] = &mono_defaults.object_class->byval_arg;
9098 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9099 csig->params [2] = &mono_defaults.object_class->byval_arg;
9100 mono_mb_emit_ldarg (mb, 0);
9101 mono_mb_emit_ldarg (mb, 1);
9102 mono_mb_emit_ldarg (mb, 2);
9103 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9107 /* ldelema (implicit bound check) */
9108 load_array_element_address (mb);
9109 mono_mb_emit_stloc (mb, array_slot_addr);
9111 /* if (!value) goto do_store */
9112 mono_mb_emit_ldarg (mb, 2);
9113 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9115 /* aklass = array->vtable->klass->element_class */
9116 load_array_class (mb, aklass);
9118 /*if (mono_object_isinst (value, aklass)) */
9119 mono_mb_emit_ldarg (mb, 2);
9120 mono_mb_emit_ldloc (mb, aklass);
9121 mono_mb_emit_icall (mb, mono_object_isinst);
9122 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9125 mono_mb_patch_branch (mb, b1);
9126 mono_mb_emit_ldloc (mb, array_slot_addr);
9127 mono_mb_emit_ldarg (mb, 2);
9128 mono_mb_emit_byte (mb, CEE_STIND_REF);
9129 mono_mb_emit_byte (mb, CEE_RET);
9132 mono_mb_patch_branch (mb, b2);
9134 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9137 case STELEMREF_SEALED_CLASS:
9139 <ldelema (bound check)>
9143 aklass = array->vtable->klass->element_class;
9144 vklass = value->vtable->klass;
9146 if (vklass != aklass)
9150 *array_slot_addr = value;
9153 throw new ArrayTypeMismatchException ();
9155 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9156 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9157 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9160 /* ldelema (implicit bound check) */
9161 load_array_element_address (mb);
9162 mono_mb_emit_stloc (mb, array_slot_addr);
9164 /* if (!value) goto do_store */
9165 mono_mb_emit_ldarg (mb, 2);
9166 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9168 /* aklass = array->vtable->klass->element_class */
9169 load_array_class (mb, aklass);
9171 /* vklass = value->vtable->klass */
9172 load_value_class (mb, vklass);
9174 /*if (vklass != aklass) goto do_exception; */
9175 mono_mb_emit_ldloc (mb, aklass);
9176 mono_mb_emit_ldloc (mb, vklass);
9177 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9180 mono_mb_patch_branch (mb, b1);
9181 mono_mb_emit_ldloc (mb, array_slot_addr);
9182 mono_mb_emit_ldarg (mb, 2);
9183 mono_mb_emit_byte (mb, CEE_STIND_REF);
9184 mono_mb_emit_byte (mb, CEE_RET);
9187 mono_mb_patch_branch (mb, b2);
9188 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9191 case STELEMREF_CLASS:
9194 <ldelema (bound check)>
9198 aklass = array->vtable->klass->element_class;
9199 vklass = value->vtable->klass;
9201 if (vklass->idepth < aklass->idepth)
9204 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9208 *array_slot_addr = value;
9212 throw new ArrayTypeMismatchException ();
9214 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9215 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9216 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9218 /* ldelema (implicit bound check) */
9219 load_array_element_address (mb);
9220 mono_mb_emit_stloc (mb, array_slot_addr);
9222 /* if (!value) goto do_store */
9223 mono_mb_emit_ldarg (mb, 2);
9224 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9226 /* aklass = array->vtable->klass->element_class */
9227 load_array_class (mb, aklass);
9229 /* vklass = value->vtable->klass */
9230 load_value_class (mb, vklass);
9232 /*if (mono_object_isinst (value, aklass)) */
9233 mono_mb_emit_ldarg (mb, 2);
9234 mono_mb_emit_ldloc (mb, aklass);
9235 mono_mb_emit_icall (mb, mono_object_isinst);
9236 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9238 /* if (vklass->idepth < aklass->idepth) goto failue */
9239 mono_mb_emit_ldloc (mb, vklass);
9240 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9241 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9243 mono_mb_emit_ldloc (mb, aklass);
9244 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9245 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9247 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9249 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9250 mono_mb_emit_ldloc (mb, vklass);
9251 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9252 mono_mb_emit_byte (mb, CEE_LDIND_I);
9254 mono_mb_emit_ldloc (mb, aklass);
9255 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9256 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9257 mono_mb_emit_icon (mb, 1);
9258 mono_mb_emit_byte (mb, CEE_SUB);
9259 mono_mb_emit_icon (mb, sizeof (void*));
9260 mono_mb_emit_byte (mb, CEE_MUL);
9261 mono_mb_emit_byte (mb, CEE_ADD);
9262 mono_mb_emit_byte (mb, CEE_LDIND_I);
9264 mono_mb_emit_ldloc (mb, aklass);
9265 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9268 mono_mb_patch_branch (mb, b1);
9269 mono_mb_emit_ldloc (mb, array_slot_addr);
9270 mono_mb_emit_ldarg (mb, 2);
9271 mono_mb_emit_byte (mb, CEE_STIND_REF);
9272 mono_mb_emit_byte (mb, CEE_RET);
9275 mono_mb_patch_branch (mb, b2);
9276 mono_mb_patch_branch (mb, b3);
9278 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9281 case STELEMREF_INTERFACE:
9288 klass = array->obj.vtable->klass->element_class;
9290 uiid = klass->interface_id;
9291 if (uiid > vt->max_interface_id)
9293 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9296 mono_array_setref (array, index, value);
9299 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9301 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9302 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9303 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9304 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9306 /* ldelema (implicit bound check) */
9307 load_array_element_address (mb);
9308 mono_mb_emit_stloc (mb, array_slot_addr);
9310 /* if (!value) goto do_store */
9311 mono_mb_emit_ldarg (mb, 2);
9312 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9314 /* klass = array->vtable->klass->element_class */
9315 load_array_class (mb, aklass);
9317 /* vt = value->vtable */
9318 mono_mb_emit_ldarg (mb, 2);
9319 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9320 mono_mb_emit_byte (mb, CEE_LDIND_I);
9321 mono_mb_emit_stloc (mb, vtable);
9323 /* uiid = klass->interface_id; */
9324 mono_mb_emit_ldloc (mb, aklass);
9325 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9326 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9327 mono_mb_emit_stloc (mb, uiid);
9329 /*if (uiid > vt->max_interface_id)*/
9330 mono_mb_emit_ldloc (mb, uiid);
9331 mono_mb_emit_ldloc (mb, vtable);
9332 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9333 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9334 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9336 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9338 /*vt->interface_bitmap*/
9339 mono_mb_emit_ldloc (mb, vtable);
9340 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9341 mono_mb_emit_byte (mb, CEE_LDIND_I);
9344 mono_mb_emit_ldloc (mb, uiid);
9345 mono_mb_emit_icon (mb, 3);
9346 mono_mb_emit_byte (mb, CEE_SHR_UN);
9348 /*vt->interface_bitmap [(uiid) >> 3]*/
9349 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9350 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9352 /*(1 << ((uiid)&7)))*/
9353 mono_mb_emit_icon (mb, 1);
9354 mono_mb_emit_ldloc (mb, uiid);
9355 mono_mb_emit_icon (mb, 7);
9356 mono_mb_emit_byte (mb, CEE_AND);
9357 mono_mb_emit_byte (mb, CEE_SHL);
9359 /*bitwise and the whole thing*/
9360 mono_mb_emit_byte (mb, CEE_AND);
9361 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9364 mono_mb_patch_branch (mb, b1);
9365 mono_mb_emit_ldloc (mb, array_slot_addr);
9366 mono_mb_emit_ldarg (mb, 2);
9367 mono_mb_emit_byte (mb, CEE_STIND_REF);
9368 mono_mb_emit_byte (mb, CEE_RET);
9371 mono_mb_patch_branch (mb, b2);
9372 mono_mb_patch_branch (mb, b3);
9373 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9377 mono_mb_emit_ldarg (mb, 0);
9378 mono_mb_emit_ldarg (mb, 1);
9379 mono_mb_emit_ldarg (mb, 2);
9380 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9381 mono_mb_emit_byte (mb, CEE_RET);
9384 #endif /* DISABLE_JIT */
9385 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9386 info->d.virtual_stelemref.kind = kind;
9387 res = mono_mb_create (mb, signature, 4, info);
9388 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9390 mono_marshal_lock ();
9391 if (!cached_methods [kind]) {
9392 cached_methods [kind] = res;
9393 mono_marshal_unlock ();
9395 mono_marshal_unlock ();
9396 mono_free_method (res);
9400 return cached_methods [kind];
9404 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9408 g_assert (array_class->rank == 1);
9409 kind = get_virtual_stelemref_kind (array_class->element_class);
9411 return get_virtual_stelemref_wrapper (kind);
9415 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9420 *nwrappers = STELEMREF_KIND_COUNT;
9421 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9422 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9423 res [i] = get_virtual_stelemref_wrapper (i);
9428 * The wrapper info for the wrapper is a WrapperInfo structure.
9431 mono_marshal_get_stelemref (void)
9433 static MonoMethod* ret = NULL;
9434 MonoMethodSignature *sig;
9435 MonoMethodBuilder *mb;
9438 guint32 b1, b2, b3, b4;
9441 int array_slot_addr;
9446 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9449 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9451 /* void stelemref (void* array, int idx, void* value) */
9452 sig->ret = &mono_defaults.void_class->byval_arg;
9453 sig->params [0] = &mono_defaults.object_class->byval_arg;
9454 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9455 sig->params [2] = &mono_defaults.object_class->byval_arg;
9458 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9459 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9460 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9464 <ldelema (bound check)>
9468 aklass = array->vtable->klass->element_class;
9469 vklass = value->vtable->klass;
9471 if (vklass->idepth < aklass->idepth)
9474 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9478 *array_slot_addr = value;
9482 if (mono_object_isinst (value, aklass))
9485 throw new ArrayTypeMismatchException ();
9488 /* ldelema (implicit bound check) */
9489 mono_mb_emit_ldarg (mb, 0);
9490 mono_mb_emit_ldarg (mb, 1);
9491 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9492 mono_mb_emit_stloc (mb, array_slot_addr);
9494 /* if (!value) goto do_store */
9495 mono_mb_emit_ldarg (mb, 2);
9496 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9498 /* aklass = array->vtable->klass->element_class */
9499 mono_mb_emit_ldarg (mb, 0);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9501 mono_mb_emit_byte (mb, CEE_LDIND_I);
9502 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9503 mono_mb_emit_byte (mb, CEE_LDIND_I);
9504 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9505 mono_mb_emit_byte (mb, CEE_LDIND_I);
9506 mono_mb_emit_stloc (mb, aklass);
9508 /* vklass = value->vtable->klass */
9509 mono_mb_emit_ldarg (mb, 2);
9510 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9511 mono_mb_emit_byte (mb, CEE_LDIND_I);
9512 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9513 mono_mb_emit_byte (mb, CEE_LDIND_I);
9514 mono_mb_emit_stloc (mb, vklass);
9516 /* if (vklass->idepth < aklass->idepth) goto failue */
9517 mono_mb_emit_ldloc (mb, vklass);
9518 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9519 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9521 mono_mb_emit_ldloc (mb, aklass);
9522 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9523 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9525 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9527 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9528 mono_mb_emit_ldloc (mb, vklass);
9529 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9530 mono_mb_emit_byte (mb, CEE_LDIND_I);
9532 mono_mb_emit_ldloc (mb, aklass);
9533 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9534 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9535 mono_mb_emit_icon (mb, 1);
9536 mono_mb_emit_byte (mb, CEE_SUB);
9537 mono_mb_emit_icon (mb, sizeof (void*));
9538 mono_mb_emit_byte (mb, CEE_MUL);
9539 mono_mb_emit_byte (mb, CEE_ADD);
9540 mono_mb_emit_byte (mb, CEE_LDIND_I);
9542 mono_mb_emit_ldloc (mb, aklass);
9544 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9546 copy_pos = mono_mb_get_label (mb);
9548 mono_mb_patch_branch (mb, b1);
9549 mono_mb_emit_ldloc (mb, array_slot_addr);
9550 mono_mb_emit_ldarg (mb, 2);
9551 mono_mb_emit_byte (mb, CEE_STIND_REF);
9553 mono_mb_emit_byte (mb, CEE_RET);
9556 mono_mb_patch_branch (mb, b2);
9557 mono_mb_patch_branch (mb, b3);
9559 mono_mb_emit_ldarg (mb, 2);
9560 mono_mb_emit_ldloc (mb, aklass);
9561 mono_mb_emit_icall (mb, mono_object_isinst);
9563 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9564 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9565 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9567 mono_mb_emit_byte (mb, CEE_RET);
9569 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9570 ret = mono_mb_create (mb, sig, 4, info);
9577 * mono_marshal_get_gsharedvt_in_wrapper:
9579 * This wrapper handles calls from normal code to gsharedvt code.
9581 * The wrapper info for the wrapper is a WrapperInfo structure.
9584 mono_marshal_get_gsharedvt_in_wrapper (void)
9586 static MonoMethod* ret = NULL;
9587 MonoMethodSignature *sig;
9588 MonoMethodBuilder *mb;
9594 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9596 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9597 sig->ret = &mono_defaults.void_class->byval_arg;
9601 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9603 mono_mb_emit_byte (mb, CEE_RET);
9605 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9606 ret = mono_mb_create (mb, sig, 4, info);
9613 * mono_marshal_get_gsharedvt_out_wrapper:
9615 * This wrapper handles calls from gsharedvt code to normal code.
9617 * The wrapper info for the wrapper is a WrapperInfo structure.
9620 mono_marshal_get_gsharedvt_out_wrapper (void)
9622 static MonoMethod* ret = NULL;
9623 MonoMethodSignature *sig;
9624 MonoMethodBuilder *mb;
9630 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9632 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9633 sig->ret = &mono_defaults.void_class->byval_arg;
9637 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9639 mono_mb_emit_byte (mb, CEE_RET);
9641 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9642 ret = mono_mb_create (mb, sig, 4, info);
9654 /* LOCKING: vars accessed under the marshal lock */
9655 static ArrayElemAddr *elem_addr_cache = NULL;
9656 static int elem_addr_cache_size = 0;
9657 static int elem_addr_cache_next = 0;
9660 * mono_marshal_get_array_address:
9661 * @rank: rank of the array type
9662 * @elem_size: size in bytes of an element of an array.
9664 * Returns a MonoMethod that implements the code to get the address
9665 * of an element in a multi-dimenasional array of @rank dimensions.
9666 * The returned method takes an array as the first argument and then
9667 * @rank indexes for the @rank dimensions.
9668 * If ELEM_SIZE is 0, read the array size from the array object.
9671 mono_marshal_get_array_address (int rank, int elem_size)
9674 MonoMethodBuilder *mb;
9675 MonoMethodSignature *sig;
9678 int i, bounds, ind, realidx;
9679 int branch_pos, *branch_positions;
9683 mono_marshal_lock ();
9684 for (i = 0; i < elem_addr_cache_next; ++i) {
9685 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9686 ret = elem_addr_cache [i].method;
9690 mono_marshal_unlock ();
9694 branch_positions = g_new0 (int, rank);
9696 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9698 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9699 sig->ret = &mono_defaults.int_class->byval_arg;
9700 sig->params [0] = &mono_defaults.object_class->byval_arg;
9701 for (i = 0; i < rank; ++i) {
9702 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9705 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9706 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9710 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9711 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9712 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9714 /* bounds = array->bounds; */
9715 mono_mb_emit_ldarg (mb, 0);
9716 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9717 mono_mb_emit_byte (mb, CEE_LDIND_I);
9718 mono_mb_emit_stloc (mb, bounds);
9720 /* ind is the overall element index, realidx is the partial index in a single dimension */
9721 /* ind = idx0 - bounds [0].lower_bound */
9722 mono_mb_emit_ldarg (mb, 1);
9723 mono_mb_emit_ldloc (mb, bounds);
9724 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9725 mono_mb_emit_byte (mb, CEE_ADD);
9726 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9727 mono_mb_emit_byte (mb, CEE_SUB);
9728 mono_mb_emit_stloc (mb, ind);
9729 /* if (ind >= bounds [0].length) goto exeception; */
9730 mono_mb_emit_ldloc (mb, ind);
9731 mono_mb_emit_ldloc (mb, bounds);
9732 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9733 mono_mb_emit_byte (mb, CEE_ADD);
9734 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9735 /* note that we use unsigned comparison */
9736 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9738 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9739 * We could also decide to ignore the passed elem_size and get it
9740 * from the array object, to reduce the number of methods we generate:
9741 * the additional cost is 3 memory loads and a non-immediate mul.
9743 for (i = 1; i < rank; ++i) {
9744 /* realidx = idxi - bounds [i].lower_bound */
9745 mono_mb_emit_ldarg (mb, 1 + i);
9746 mono_mb_emit_ldloc (mb, bounds);
9747 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9748 mono_mb_emit_byte (mb, CEE_ADD);
9749 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9750 mono_mb_emit_byte (mb, CEE_SUB);
9751 mono_mb_emit_stloc (mb, realidx);
9752 /* if (realidx >= bounds [i].length) goto exeception; */
9753 mono_mb_emit_ldloc (mb, realidx);
9754 mono_mb_emit_ldloc (mb, bounds);
9755 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9756 mono_mb_emit_byte (mb, CEE_ADD);
9757 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9758 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9759 /* ind = ind * bounds [i].length + realidx */
9760 mono_mb_emit_ldloc (mb, ind);
9761 mono_mb_emit_ldloc (mb, bounds);
9762 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9763 mono_mb_emit_byte (mb, CEE_ADD);
9764 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9765 mono_mb_emit_byte (mb, CEE_MUL);
9766 mono_mb_emit_ldloc (mb, realidx);
9767 mono_mb_emit_byte (mb, CEE_ADD);
9768 mono_mb_emit_stloc (mb, ind);
9771 /* return array->vector + ind * element_size */
9772 mono_mb_emit_ldarg (mb, 0);
9773 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9774 mono_mb_emit_ldloc (mb, ind);
9776 mono_mb_emit_icon (mb, elem_size);
9778 /* Load arr->vtable->klass->sizes.element_class */
9779 mono_mb_emit_ldarg (mb, 0);
9780 mono_mb_emit_byte (mb, CEE_CONV_I);
9781 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9782 mono_mb_emit_byte (mb, CEE_ADD);
9783 mono_mb_emit_byte (mb, CEE_LDIND_I);
9784 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9785 mono_mb_emit_byte (mb, CEE_ADD);
9786 mono_mb_emit_byte (mb, CEE_LDIND_I);
9787 /* sizes is an union, so this reads sizes.element_size */
9788 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9789 mono_mb_emit_byte (mb, CEE_ADD);
9790 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9792 mono_mb_emit_byte (mb, CEE_MUL);
9793 mono_mb_emit_byte (mb, CEE_ADD);
9794 mono_mb_emit_byte (mb, CEE_RET);
9796 /* patch the branches to get here and throw */
9797 for (i = 1; i < rank; ++i) {
9798 mono_mb_patch_branch (mb, branch_positions [i]);
9800 mono_mb_patch_branch (mb, branch_pos);
9801 /* throw exception */
9802 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9804 g_free (branch_positions);
9805 #endif /* DISABLE_JIT */
9807 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9808 info->d.element_addr.rank = rank;
9809 info->d.element_addr.elem_size = elem_size;
9810 ret = mono_mb_create (mb, sig, 4, info);
9813 /* cache the result */
9815 mono_marshal_lock ();
9816 for (i = 0; i < elem_addr_cache_next; ++i) {
9817 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9818 /* FIXME: free ret */
9819 ret = elem_addr_cache [i].method;
9825 if (elem_addr_cache_next >= elem_addr_cache_size) {
9826 int new_size = elem_addr_cache_size + 4;
9827 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9828 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9829 g_free (elem_addr_cache);
9830 elem_addr_cache = new_array;
9831 elem_addr_cache_size = new_size;
9833 elem_addr_cache [elem_addr_cache_next].rank = rank;
9834 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9835 elem_addr_cache [elem_addr_cache_next].method = ret;
9836 elem_addr_cache_next ++;
9838 mono_marshal_unlock ();
9843 * mono_marshal_get_array_accessor_wrapper:
9845 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9848 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9850 MonoMethodSignature *sig;
9851 MonoMethodBuilder *mb;
9855 MonoGenericContext *ctx = NULL;
9856 MonoMethod *orig_method = NULL;
9857 MonoGenericContainer *container = NULL;
9861 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9862 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9863 * FIXME: Use generic methods.
9870 g_assert_not_reached ();
9872 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9873 if ((res = mono_marshal_find_in_cache (cache, method)))
9877 sig = signature_dup (method->klass->image, mono_method_signature (method));
9880 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9883 /* Call the method */
9885 mono_mb_emit_ldarg (mb, 0);
9886 for (i = 0; i < sig->param_count; i++)
9887 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9891 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9892 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9894 mono_mb_emit_managed_call (mb, method, NULL);
9896 mono_mb_emit_byte (mb, CEE_RET);
9901 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9902 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9904 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9905 info->d.array_accessor.method = method;
9907 res = mono_mb_create_and_cache_full (cache, method,
9908 mb, sig, sig->param_count + 16,
9917 mono_marshal_alloc (gulong size)
9922 res = CoTaskMemAlloc (size);
9924 res = g_try_malloc ((gulong)size);
9926 mono_gc_out_of_memory ((gulong)size);
9932 mono_marshal_free (gpointer ptr)
9935 CoTaskMemFree (ptr);
9942 mono_marshal_free_array (gpointer *ptr, int size)
9949 for (i = 0; i < size; i++)
9955 mono_marshal_string_to_utf16 (MonoString *s)
9957 return s ? mono_string_chars (s) : NULL;
9961 mono_marshal_string_to_utf16_copy (MonoString *s)
9966 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9967 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9968 res [mono_string_length (s)] = 0;
9974 * mono_marshal_set_last_error:
9976 * This function is invoked to set the last error value from a P/Invoke call
9977 * which has SetLastError set.
9980 mono_marshal_set_last_error (void)
9983 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9985 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9990 mono_marshal_set_last_error_windows (int error)
9993 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9998 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9999 gpointer dest, gint32 length)
10004 MONO_CHECK_ARG_NULL (src,);
10005 MONO_CHECK_ARG_NULL (dest,);
10007 if (src->obj.vtable->klass->rank != 1) {
10008 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10011 if (start_index < 0) {
10012 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10016 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10019 if (start_index + length > mono_array_length (src)) {
10020 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10024 element_size = mono_array_element_size (src->obj.vtable->klass);
10026 /* no references should be involved */
10027 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10029 memcpy (dest, source_addr, length * element_size);
10033 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10034 MonoArray *dest, gint32 length)
10039 MONO_CHECK_ARG_NULL (src,);
10040 MONO_CHECK_ARG_NULL (dest,);
10042 if (dest->obj.vtable->klass->rank != 1) {
10043 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10046 if (start_index < 0) {
10047 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10051 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10054 if (start_index + length > mono_array_length (dest)) {
10055 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10058 element_size = mono_array_element_size (dest->obj.vtable->klass);
10060 /* no references should be involved */
10061 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10063 memcpy (dest_addr, src, length * element_size);
10067 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10072 return mono_string_new (mono_domain_get (), ptr);
10076 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10079 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10082 return mono_string_new_len (mono_domain_get (), ptr, len);
10087 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10089 MonoDomain *domain = mono_domain_get ();
10099 return mono_string_new_utf16 (domain, ptr, len);
10103 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10105 MonoDomain *domain = mono_domain_get ();
10108 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10111 return mono_string_new_utf16 (domain, ptr, len);
10116 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10118 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10122 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10128 MONO_CHECK_ARG_NULL (rtype, 0);
10130 type = rtype->type;
10131 klass = mono_class_from_mono_type (type);
10132 if (!mono_class_init (klass)) {
10133 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10137 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10139 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10140 return sizeof (gpointer);
10141 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10143 MonoException *exc;
10145 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10146 exc = mono_get_exception_argument ("t", msg);
10148 mono_set_pending_exception (exc);
10152 return mono_class_native_size (klass, NULL);
10156 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10158 MonoMethod *method;
10161 MONO_CHECK_ARG_NULL (obj,);
10162 MONO_CHECK_ARG_NULL (dst,);
10164 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10168 pa [2] = &delete_old;
10170 mono_runtime_invoke (method, NULL, pa, NULL);
10174 ptr_to_structure (gpointer src, MonoObject *dst)
10176 MonoMethod *method;
10179 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10184 mono_runtime_invoke (method, NULL, pa, NULL);
10188 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10192 MONO_CHECK_ARG_NULL (src,);
10193 MONO_CHECK_ARG_NULL (dst,);
10195 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10197 if (t->type == MONO_TYPE_VALUETYPE) {
10198 MonoException *exc;
10201 tmp = g_strdup_printf ("Destination is a boxed value type.");
10202 exc = mono_get_exception_argument ("dst", tmp);
10205 mono_set_pending_exception (exc);
10209 ptr_to_structure (src, dst);
10213 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10216 MonoDomain *domain = mono_domain_get ();
10221 MONO_CHECK_ARG_NULL (type, NULL);
10223 klass = mono_class_from_mono_type (type->type);
10224 if (!mono_class_init (klass)) {
10225 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10229 res = mono_object_new (domain, klass);
10231 ptr_to_structure (src, res);
10237 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10239 MonoMarshalType *info;
10242 int match_index = -1;
10244 MONO_CHECK_ARG_NULL (type, 0);
10245 MONO_CHECK_ARG_NULL (field_name, 0);
10247 fname = mono_string_to_utf8 (field_name);
10248 klass = mono_class_from_mono_type (type->type);
10249 if (!mono_class_init (klass)) {
10250 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10254 while (klass && match_index == -1) {
10255 MonoClassField* field;
10257 gpointer iter = NULL;
10258 while ((field = mono_class_get_fields (klass, &iter))) {
10259 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10261 if (!strcmp (fname, mono_field_get_name (field))) {
10268 if (match_index == -1)
10269 klass = klass->parent;
10274 if(match_index == -1) {
10275 MonoException* exc;
10278 /* Get back original class instance */
10279 klass = mono_class_from_mono_type (type->type);
10281 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10282 exc = mono_get_exception_argument ("fieldName", tmp);
10285 mono_set_pending_exception ((MonoException*)exc);
10289 info = mono_marshal_load_type_info (klass);
10290 return info->fields [match_index].offset;
10294 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10299 tres = mono_string_to_utf8 (string);
10303 len = strlen (tres) + 1;
10304 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10305 memcpy (ret, tres, len);
10310 return mono_string_to_utf8 (string);
10315 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10317 if (string == NULL)
10320 #ifdef TARGET_WIN32
10321 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10322 ((mono_string_length (string) + 1) * 2);
10324 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10326 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10327 res [mono_string_length (string)] = 0;
10333 mono_struct_delete_old (MonoClass *klass, char *ptr)
10335 MonoMarshalType *info;
10338 info = mono_marshal_load_type_info (klass);
10340 for (i = 0; i < info->num_fields; i++) {
10341 MonoMarshalConv conv;
10342 MonoType *ftype = info->fields [i].field->type;
10345 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10348 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10349 klass->unicode, &conv);
10351 cpos = ptr + info->fields [i].offset;
10354 case MONO_MARSHAL_CONV_NONE:
10355 if (MONO_TYPE_ISSTRUCT (ftype)) {
10356 mono_struct_delete_old (ftype->data.klass, cpos);
10360 case MONO_MARSHAL_CONV_STR_LPWSTR:
10361 /* We assume this field points inside a MonoString */
10363 case MONO_MARSHAL_CONV_STR_LPTSTR:
10364 #ifdef TARGET_WIN32
10365 /* We assume this field points inside a MonoString
10369 case MONO_MARSHAL_CONV_STR_LPSTR:
10370 case MONO_MARSHAL_CONV_STR_BSTR:
10371 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10372 case MONO_MARSHAL_CONV_STR_TBSTR:
10373 mono_marshal_free (*(gpointer *)cpos);
10383 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10387 MONO_CHECK_ARG_NULL (src,);
10388 MONO_CHECK_ARG_NULL (type,);
10390 klass = mono_class_from_mono_type (type->type);
10391 if (!mono_class_init (klass)) {
10392 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10396 mono_struct_delete_old (klass, (char *)src);
10400 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10404 if ((gulong)size == 0)
10405 /* This returns a valid pointer for size 0 on MS.NET */
10409 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10411 res = g_try_malloc ((gulong)size);
10414 mono_gc_out_of_memory ((gulong)size);
10420 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10425 mono_gc_out_of_memory ((gulong)size);
10430 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10432 res = g_try_realloc (ptr, (gulong)size);
10435 mono_gc_out_of_memory ((gulong)size);
10441 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10451 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10456 res = CoTaskMemAlloc (size);
10458 if ((gulong)size == 0)
10459 /* This returns a valid pointer for size 0 on MS.NET */
10462 res = g_try_malloc ((gulong)size);
10465 mono_gc_out_of_memory ((gulong)size);
10470 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10473 CoTaskMemFree (ptr);
10480 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10485 res = CoTaskMemRealloc (ptr, size);
10487 res = g_try_realloc (ptr, (gulong)size);
10490 mono_gc_out_of_memory ((gulong)size);
10495 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10497 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10501 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10503 MonoClass *klass = mono_type_get_class (type->type);
10504 if (!mono_class_init (klass)) {
10505 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10509 return mono_ftnptr_to_delegate (klass, ftn);
10513 * mono_marshal_is_loading_type_info:
10515 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10519 mono_marshal_is_loading_type_info (MonoClass *klass)
10521 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10523 return g_slist_find (loads_list, klass) != NULL;
10527 * mono_marshal_load_type_info:
10529 * Initialize klass->marshal_info using information from metadata. This function can
10530 * recursively call itself, and the caller is responsible to avoid that by calling
10531 * mono_marshal_is_loading_type_info () beforehand.
10533 * LOCKING: Acquires the loader lock.
10536 mono_marshal_load_type_info (MonoClass* klass)
10539 guint32 native_size = 0, min_align = 1, packing;
10540 MonoMarshalType *info;
10541 MonoClassField* field;
10544 GSList *loads_list;
10546 g_assert (klass != NULL);
10548 if (klass->marshal_info)
10549 return klass->marshal_info;
10551 if (!klass->inited)
10552 mono_class_init (klass);
10554 if (klass->marshal_info)
10555 return klass->marshal_info;
10558 * This function can recursively call itself, so we keep the list of classes which are
10559 * under initialization in a TLS list.
10561 g_assert (!mono_marshal_is_loading_type_info (klass));
10562 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10563 loads_list = g_slist_prepend (loads_list, klass);
10564 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10567 while ((field = mono_class_get_fields (klass, &iter))) {
10568 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10570 if (mono_field_is_deleted (field))
10575 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10577 /* The mempool is protected by the loader lock */
10578 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10579 info->num_fields = count;
10581 /* Try to find a size for this type in metadata */
10582 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10584 if (klass->parent) {
10585 int parent_size = mono_class_native_size (klass->parent, NULL);
10587 /* Add parent size to real size */
10588 native_size += parent_size;
10589 info->native_size = parent_size;
10592 packing = klass->packing_size ? klass->packing_size : 8;
10595 while ((field = mono_class_get_fields (klass, &iter))) {
10599 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10602 if (mono_field_is_deleted (field))
10604 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10605 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10606 NULL, NULL, &info->fields [j].mspec);
10608 info->fields [j].field = field;
10610 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10611 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10612 /* This field is a hack inserted by MCS to empty structures */
10617 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10618 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10619 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10620 &align, TRUE, klass->unicode);
10621 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10622 min_align = MAX (align, min_align);
10623 info->fields [j].offset = info->native_size;
10624 info->fields [j].offset += align - 1;
10625 info->fields [j].offset &= ~(align - 1);
10626 info->native_size = info->fields [j].offset + size;
10628 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10629 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10630 &align, TRUE, klass->unicode);
10631 min_align = MAX (align, min_align);
10632 info->fields [j].offset = field->offset - sizeof (MonoObject);
10633 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10639 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10640 info->native_size = MAX (native_size, info->native_size);
10642 * If the provided Size is equal or larger than the calculated size, and there
10643 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10645 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10646 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10649 min_align = MIN (min_align, packing);
10653 if (info->native_size & (min_align - 1)) {
10654 info->native_size += min_align - 1;
10655 info->native_size &= ~(min_align - 1);
10658 info->min_align = min_align;
10660 /* Update the class's blittable info, if the layouts don't match */
10661 if (info->native_size != mono_class_value_size (klass, NULL))
10662 klass->blittable = FALSE;
10664 /* If this is an array type, ensure that we have element info */
10665 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10666 mono_marshal_load_type_info (klass->element_class);
10669 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10670 loads_list = g_slist_remove (loads_list, klass);
10671 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10673 mono_marshal_lock ();
10674 if (!klass->marshal_info) {
10675 /*We do double-checking locking on marshal_info */
10676 mono_memory_barrier ();
10677 klass->marshal_info = info;
10679 mono_marshal_unlock ();
10681 return klass->marshal_info;
10685 * mono_class_native_size:
10688 * Returns: the native size of an object instance (when marshaled
10689 * to unmanaged code)
10692 mono_class_native_size (MonoClass *klass, guint32 *align)
10694 if (!klass->marshal_info) {
10695 if (mono_marshal_is_loading_type_info (klass)) {
10700 mono_marshal_load_type_info (klass);
10705 *align = klass->marshal_info->min_align;
10707 return klass->marshal_info->native_size;
10711 * mono_type_native_stack_size:
10712 * @t: the type to return the size it uses on the stack
10714 * Returns: the number of bytes required to hold an instance of this
10715 * type on the native stack
10718 mono_type_native_stack_size (MonoType *t, guint32 *align)
10722 g_assert (t != NULL);
10728 *align = sizeof (gpointer);
10729 return sizeof (gpointer);
10733 case MONO_TYPE_BOOLEAN:
10734 case MONO_TYPE_CHAR:
10745 case MONO_TYPE_STRING:
10746 case MONO_TYPE_OBJECT:
10747 case MONO_TYPE_CLASS:
10748 case MONO_TYPE_SZARRAY:
10749 case MONO_TYPE_PTR:
10750 case MONO_TYPE_FNPTR:
10751 case MONO_TYPE_ARRAY:
10752 *align = sizeof (gpointer);
10753 return sizeof (gpointer);
10758 *align = MONO_ABI_ALIGNOF (double);
10762 *align = MONO_ABI_ALIGNOF (gint64);
10764 case MONO_TYPE_GENERICINST:
10765 if (!mono_type_generic_inst_is_valuetype (t)) {
10766 *align = sizeof (gpointer);
10767 return sizeof (gpointer);
10770 case MONO_TYPE_TYPEDBYREF:
10771 case MONO_TYPE_VALUETYPE: {
10773 MonoClass *klass = mono_class_from_mono_type (t);
10775 if (klass->enumtype)
10776 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10778 size = mono_class_native_size (klass, align);
10779 *align = *align + 3;
10789 g_error ("type 0x%02x unknown", t->type);
10795 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10796 gboolean as_field, gboolean unicode)
10798 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10801 switch (native_type) {
10802 case MONO_NATIVE_BOOLEAN:
10805 case MONO_NATIVE_I1:
10806 case MONO_NATIVE_U1:
10809 case MONO_NATIVE_I2:
10810 case MONO_NATIVE_U2:
10811 case MONO_NATIVE_VARIANTBOOL:
10814 case MONO_NATIVE_I4:
10815 case MONO_NATIVE_U4:
10816 case MONO_NATIVE_ERROR:
10819 case MONO_NATIVE_I8:
10820 case MONO_NATIVE_U8:
10821 *align = MONO_ABI_ALIGNOF (gint64);
10823 case MONO_NATIVE_R4:
10826 case MONO_NATIVE_R8:
10827 *align = MONO_ABI_ALIGNOF (double);
10829 case MONO_NATIVE_INT:
10830 case MONO_NATIVE_UINT:
10831 case MONO_NATIVE_LPSTR:
10832 case MONO_NATIVE_LPWSTR:
10833 case MONO_NATIVE_LPTSTR:
10834 case MONO_NATIVE_BSTR:
10835 case MONO_NATIVE_ANSIBSTR:
10836 case MONO_NATIVE_TBSTR:
10837 case MONO_NATIVE_LPARRAY:
10838 case MONO_NATIVE_SAFEARRAY:
10839 case MONO_NATIVE_IUNKNOWN:
10840 case MONO_NATIVE_IDISPATCH:
10841 case MONO_NATIVE_INTERFACE:
10842 case MONO_NATIVE_ASANY:
10843 case MONO_NATIVE_FUNC:
10844 case MONO_NATIVE_LPSTRUCT:
10845 *align = MONO_ABI_ALIGNOF (gpointer);
10846 return sizeof (gpointer);
10847 case MONO_NATIVE_STRUCT:
10848 klass = mono_class_from_mono_type (type);
10849 if (klass == mono_defaults.object_class &&
10850 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10854 return mono_class_native_size (klass, align);
10855 case MONO_NATIVE_BYVALTSTR: {
10856 int esize = unicode ? 2: 1;
10859 return mspec->data.array_data.num_elem * esize;
10861 case MONO_NATIVE_BYVALARRAY: {
10862 // FIXME: Have to consider ArraySubType
10864 klass = mono_class_from_mono_type (type);
10865 if (klass->element_class == mono_defaults.char_class) {
10866 esize = unicode ? 2 : 1;
10869 esize = mono_class_native_size (klass->element_class, align);
10872 return mspec->data.array_data.num_elem * esize;
10874 case MONO_NATIVE_CUSTOM:
10875 *align = sizeof (gpointer);
10876 return sizeof (gpointer);
10878 case MONO_NATIVE_CURRENCY:
10879 case MONO_NATIVE_VBBYREFSTR:
10881 g_error ("native type %02x not implemented", native_type);
10884 g_assert_not_reached ();
10889 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10897 t = &o->vtable->klass->byval_arg;
10901 case MONO_TYPE_PTR:
10904 case MONO_TYPE_BOOLEAN:
10907 case MONO_TYPE_CHAR:
10912 return mono_object_unbox (o);
10914 case MONO_TYPE_STRING:
10915 switch (string_encoding) {
10916 case MONO_NATIVE_LPWSTR:
10917 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10919 case MONO_NATIVE_LPSTR:
10920 return mono_string_to_lpstr ((MonoString*)o);
10923 g_warning ("marshaling conversion %d not implemented", string_encoding);
10924 g_assert_not_reached ();
10927 case MONO_TYPE_CLASS:
10928 case MONO_TYPE_VALUETYPE: {
10929 MonoMethod *method;
10932 MonoBoolean delete_old = FALSE;
10934 klass = t->data.klass;
10936 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10939 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10940 klass->blittable || klass->enumtype))
10941 return mono_object_unbox (o);
10943 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10945 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10946 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10950 pa [2] = &delete_old;
10952 mono_runtime_invoke (method, NULL, pa, NULL);
10960 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10965 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10973 t = &o->vtable->klass->byval_arg;
10975 case MONO_TYPE_STRING:
10976 switch (string_encoding) {
10977 case MONO_NATIVE_LPWSTR:
10978 case MONO_NATIVE_LPSTR:
10979 mono_marshal_free (ptr);
10982 g_warning ("marshaling conversion %d not implemented", string_encoding);
10983 g_assert_not_reached ();
10986 case MONO_TYPE_CLASS:
10987 case MONO_TYPE_VALUETYPE: {
10988 klass = t->data.klass;
10990 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10991 klass->blittable || klass->enumtype))
10994 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10995 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11001 mono_runtime_invoke (method, NULL, pa, NULL);
11004 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11005 mono_struct_delete_old (klass, ptr);
11008 mono_marshal_free (ptr);
11017 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11019 MonoMethodSignature *sig, *csig;
11020 MonoMethodBuilder *mb;
11025 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11026 mb->method->slot = -1;
11028 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11029 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11031 sig = mono_method_signature (method);
11032 csig = signature_dup (method->klass->image, sig);
11033 csig->generic_param_count = 0;
11035 #ifndef DISABLE_JIT
11036 mono_mb_emit_ldarg (mb, 0);
11037 for (i = 0; i < csig->param_count; i++)
11038 mono_mb_emit_ldarg (mb, i + 1);
11039 mono_mb_emit_managed_call (mb, method, NULL);
11040 mono_mb_emit_byte (mb, CEE_RET);
11042 /* We can corlib internal methods */
11043 mb->skip_visibility = TRUE;
11045 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11046 info->d.generic_array_helper.method = method;
11047 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11055 * The mono_win32_compat_* functions are implementations of inline
11056 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11057 * although not exported by kernel32.
11059 * We map the appropiate kernel32 entries to these functions using
11060 * dllmaps declared in the global etc/mono/config.
11064 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11066 if (!dest || !source)
11069 memcpy (dest, source, length);
11073 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11075 memset (dest, fill, length);
11079 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11081 if (!dest || !source)
11084 memmove (dest, source, length);
11088 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11090 memset (dest, 0, length);
11094 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11099 for (i = 0; i < len; ++i)
11103 g_assert (i < len);
11106 while (byte && !(byte & 1))
11108 g_assert (byte == 1);
11111 *bitmask = buf [i];
11115 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11117 MonoMethodBuilder *mb;
11118 MonoMethodSignature *sig, *csig;
11119 MonoExceptionClause *clause;
11124 int i, param_count, sig_size, pos_leave;
11128 klass = method->klass;
11129 image = method->klass->image;
11130 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11132 if ((res = mono_marshal_find_in_cache (cache, method)))
11135 sig = mono_method_signature (method);
11136 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11138 /* add "this" and exception param */
11139 param_count = sig->param_count + sig->hasthis + 1;
11141 /* dup & extend signature */
11142 csig = mono_metadata_signature_alloc (image, param_count);
11143 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11144 memcpy (csig, sig, sig_size);
11145 csig->param_count = param_count;
11148 csig->call_convention = MONO_CALL_DEFAULT;
11150 if (sig->hasthis) {
11152 csig->params [0] = &klass->byval_arg;
11153 /* move params up by one */
11154 for (i = 0; i < sig->param_count; i++)
11155 csig->params [i + 1] = sig->params [i];
11158 /* setup exception param as byref+[out] */
11159 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11160 &mono_defaults.exception_class->byval_arg);
11161 csig->params [param_count - 1]->byref = 1;
11162 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11164 /* convert struct return to object */
11165 if (MONO_TYPE_ISSTRUCT (sig->ret))
11166 csig->ret = &mono_defaults.object_class->byval_arg;
11168 #ifndef DISABLE_JIT
11169 /* local 0 (temp for exception object) */
11170 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11172 /* local 1 (temp for result) */
11173 if (!MONO_TYPE_IS_VOID (sig->ret))
11174 mono_mb_add_local (mb, sig->ret);
11176 /* clear exception arg */
11177 mono_mb_emit_ldarg (mb, param_count - 1);
11178 mono_mb_emit_byte (mb, CEE_LDNULL);
11179 mono_mb_emit_byte (mb, CEE_STIND_REF);
11182 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11183 clause->try_offset = mono_mb_get_label (mb);
11185 /* push method's args */
11186 for (i = 0; i < param_count - 1; i++) {
11190 mono_mb_emit_ldarg (mb, i);
11192 /* get the byval type of the param */
11193 klass = mono_class_from_mono_type (csig->params [i]);
11194 type = &klass->byval_arg;
11196 /* unbox struct args */
11197 if (MONO_TYPE_ISSTRUCT (type)) {
11198 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11200 /* byref args & and the "this" arg must remain a ptr.
11201 Otherwise make a copy of the value type */
11202 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11203 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11205 csig->params [i] = &mono_defaults.object_class->byval_arg;
11210 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11211 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11213 mono_mb_emit_op (mb, CEE_CALL, method);
11215 /* save result at local 1 */
11216 if (!MONO_TYPE_IS_VOID (sig->ret))
11217 mono_mb_emit_stloc (mb, 1);
11219 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11222 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11223 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11224 clause->data.catch_class = mono_defaults.object_class;
11226 clause->handler_offset = mono_mb_get_label (mb);
11228 /* store exception at local 0 */
11229 mono_mb_emit_stloc (mb, 0);
11230 mono_mb_emit_ldarg (mb, param_count - 1);
11231 mono_mb_emit_ldloc (mb, 0);
11232 mono_mb_emit_byte (mb, CEE_STIND_REF);
11233 mono_mb_emit_branch (mb, CEE_LEAVE);
11235 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11237 mono_mb_set_clauses (mb, 1, clause);
11239 mono_mb_patch_branch (mb, pos_leave);
11242 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11243 mono_mb_emit_ldloc (mb, 1);
11245 /* box the return value */
11246 if (MONO_TYPE_ISSTRUCT (sig->ret))
11247 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11250 mono_mb_emit_byte (mb, CEE_RET);
11253 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11260 * mono_marshal_free_dynamic_wrappers:
11262 * Free wrappers of the dynamic method METHOD.
11265 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11267 MonoImage *image = method->klass->image;
11269 g_assert (method_is_dynamic (method));
11271 /* This could be called during shutdown */
11272 if (marshal_mutex_initialized)
11273 mono_marshal_lock ();
11275 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11276 * they could be shared with other methods ?
11278 if (image->runtime_invoke_direct_cache)
11279 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11280 if (image->delegate_abstract_invoke_cache)
11281 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11282 // FIXME: Need to clear the caches in other images as well
11283 if (image->delegate_bound_static_invoke_cache)
11284 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11286 if (marshal_mutex_initialized)
11287 mono_marshal_unlock ();
11291 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11293 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11294 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11296 return mono_metadata_signature_equal (pair->sig, sig);
11300 * mono_marshal_free_inflated_wrappers:
11302 * Free wrappers of the inflated method METHOD.
11305 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11307 MonoMethodSignature *sig = method->signature;
11309 g_assert (method->is_inflated);
11311 /* Ignore calls occuring late during cleanup. */
11312 if (!marshal_mutex_initialized)
11315 mono_marshal_lock ();
11317 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11318 * they could be shared with other methods ?
11322 * indexed by MonoMethodSignature
11324 /* FIXME: This could remove unrelated wrappers as well */
11325 if (sig && method->klass->image->delegate_begin_invoke_cache)
11326 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11327 if (sig && method->klass->image->delegate_end_invoke_cache)
11328 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11329 if (sig && method->klass->image->delegate_invoke_cache)
11330 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11331 if (sig && method->klass->image->runtime_invoke_cache)
11332 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11333 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11334 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11337 * indexed by SignaturePointerPair
11339 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11340 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11341 signature_pointer_pair_matches_signature, (gpointer)sig);
11344 * indexed by MonoMethod pointers
11346 if (method->klass->image->runtime_invoke_direct_cache)
11347 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11348 if (method->klass->image->managed_wrapper_cache)
11349 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11350 if (method->klass->image->native_wrapper_cache)
11351 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11352 if (method->klass->image->remoting_invoke_cache)
11353 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11354 if (method->klass->image->synchronized_cache)
11355 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11356 if (method->klass->image->unbox_wrapper_cache)
11357 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11358 if (method->klass->image->cominterop_invoke_cache)
11359 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11360 if (method->klass->image->cominterop_wrapper_cache)
11361 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11362 if (method->klass->image->thunk_invoke_cache)
11363 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11364 if (method->klass->image->native_func_wrapper_aot_cache)
11365 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11367 mono_marshal_unlock ();